WO2017084271A1 - 中框件及其生产方法 - Google Patents
中框件及其生产方法 Download PDFInfo
- Publication number
- WO2017084271A1 WO2017084271A1 PCT/CN2016/082729 CN2016082729W WO2017084271A1 WO 2017084271 A1 WO2017084271 A1 WO 2017084271A1 CN 2016082729 W CN2016082729 W CN 2016082729W WO 2017084271 A1 WO2017084271 A1 WO 2017084271A1
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- WO
- WIPO (PCT)
- Prior art keywords
- middle frame
- metal layer
- frame member
- layer
- region
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
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Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/2039—Modifications to facilitate cooling, ventilating, or heating characterised by the heat transfer by conduction from the heat generating element to a dissipating body
- H05K7/20509—Multiple-component heat spreaders; Multi-component heat-conducting support plates; Multi-component non-closed heat-conducting structures
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/2039—Modifications to facilitate cooling, ventilating, or heating characterised by the heat transfer by conduction from the heat generating element to a dissipating body
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/02—Constructional features of telephone sets
- H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
- H04M1/026—Details of the structure or mounting of specific components
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/2039—Modifications to facilitate cooling, ventilating, or heating characterised by the heat transfer by conduction from the heat generating element to a dissipating body
- H05K7/20436—Inner thermal coupling elements in heat dissipating housings, e.g. protrusions or depressions integrally formed in the housing
- H05K7/20445—Inner thermal coupling elements in heat dissipating housings, e.g. protrusions or depressions integrally formed in the housing the coupling element being an additional piece, e.g. thermal standoff
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K9/00—Screening of apparatus or components against electric or magnetic fields
- H05K9/0064—Earth or grounding circuit
-
- G—PHYSICS
- G06—COMPUTING OR CALCULATING; COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
- G06F1/16—Constructional details or arrangements
- G06F1/1613—Constructional details or arrangements for portable computers
- G06F1/1633—Constructional details or arrangements of portable computers not specific to the type of enclosures covered by groups G06F1/1615 - G06F1/1626
- G06F1/1656—Details related to functional adaptations of the enclosure, e.g. to provide protection against EMI, shock, water, or to host detachable peripherals like a mouse or removable expansions units like PCMCIA cards, or to provide access to internal components for maintenance or to removable storage supports like CDs or DVDs, or to mechanically mount accessories
-
- G—PHYSICS
- G06—COMPUTING OR CALCULATING; COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
- G06F1/16—Constructional details or arrangements
- G06F1/20—Cooling means
- G06F1/203—Cooling means for portable computers, e.g. for laptops
Definitions
- the present invention relates to the field of communications, and in particular, to a middle frame member and a method for producing the same.
- the materials of the middle frame parts of the existing electronic products have gradually failed to meet the current heat dissipation requirements.
- the current frame materials of mobile phones have gradually failed to meet the requirements.
- the current heat dissipation requirements especially in the area of the mobile phone chip with relatively large power consumption, generate a large amount of heat, resulting in a local temperature of the middle frame member being too high.
- the materials commonly used in the existing mobile phone middle frame are die-cast magnesium alloy, stainless steel, die-cast aluminum.
- the embodiment of the invention provides a middle frame member and a production method thereof, which can improve the heat dissipation performance of the middle frame member of the electronic product.
- a method of producing a middle frame member wherein the middle frame member is a support member for supporting a component of the electronic product inside the electronic product, the middle frame member comprising a middle frame substrate body and located therein At least one metal plating layer on the surface of the frame substrate body, the method comprising:
- first metal layer in the first region of the middle frame substrate body, the first metal has a thermal conductivity greater than a thermal conductivity of the middle frame substrate body, and the first region includes all of the middle frame substrate body or a portion of the outer surface, the first metal layer is configured to conduct heat generated by at least one of the components in contact with or adjacent to the first metal layer to the center frame substrate body;
- the first metal having a high thermal conductivity is plated in the first region of the main body of the middle frame substrate, and the thermal conductivity of the middle frame member is increased by the first metal layer, thereby effectively heating the local heat.
- the heat of the large parts is transferred to the main body of the middle frame in time to avoid the occurrence of excessive local temperature, and the heat of the components of the electronic device is quickly released as soon as possible, thereby improving the middle.
- the heat dissipation performance of the frame is plated in the first region of the main body of the middle frame substrate, and the thermal conductivity of the middle frame member is increased by the first metal layer, thereby effectively heating the local heat.
- the heat of the large parts is transferred to the main body of the middle frame in time to avoid the occurrence of excessive local temperature, and the heat of the components of the electronic device is quickly released as soon as possible, thereby improving the middle.
- the heat dissipation performance of the frame is plated in the first region of the main body of the middle frame substrate, and the thermal conductivity of the
- the first region in the example of the present invention may be all or part of the outer surface of the main body of the frame substrate.
- the subsequent ground conductive region is also needed.
- the area contacting the metal dome is etched to expose the substrate body or the first metal for subsequent processing.
- the first area may not include the ground conductive area and the area contacting the metal dome. Instead, the first metal layer is plated in other areas to enhance the thermal conductivity of the middle frame.
- the first area may also include only an area corresponding to a portion where the electronic product has a relatively large heat generation. For example, the area including the camera area and the CPU area may be relatively large, and the first metal layer is plated in the area.
- the first region may also include only the second region and/or the third region mentioned hereinafter, that is, the first metal layer and the third metal layer may be electroplated before the second and third regions are plated.
- the first metal layer, the embodiment of the invention is not limited thereto.
- the first metal layer transfers heat to the main body of the middle frame substrate
- the first metal layer conducts the local high temperature heat to the entire first metal layer and the middle frame substrate body, wherein the heat is transmitted to the whole A metal layer is laterally propagated, and is transmitted to the middle frame substrate body for longitudinal propagation, and lateral and longitudinal propagation of heat are simultaneously performed, that is, the first metal layer is used for lateral and longitudinal propagation of heat, in other words, the first A metal layer is used to conduct heat generated by at least one of the components in contact with or adjacent to the first metal layer to the entire first metal layer and the center frame substrate body.
- the embodiments of the present invention are not limited to specific processing as long as the insulating passivation layer can be formed.
- a chemical conversion film treatment may be performed on the first metal surface, or a polymer organic coating may be sprayed on the surface of the first metal layer.
- Embodiments of the invention are not limited thereto.
- the component of the electronic product includes at least one of a printed circuit board (PCB), a chip, a battery, and a screen.
- PCB printed circuit board
- components in the embodiments of the present invention may further include other components in the electronic product, for example, and may also include components such as an antenna, a camera, and the like, and the embodiment of the present invention is not limited thereto.
- the first metal layer includes any one or a combination of the following:
- the first metal layer has a thickness of 0.01 to 50 ⁇ m.
- the embodiment of the present invention increases the overall thermal conductivity of the die-cast alloy body by surface treatment by plating a layer of high thermal conductivity copper Cu, silver Ag, and gold Au.
- the thermal conductivity of copper Cu 401W/m.k, Ag 429W/m.k, Au 317W/m.k are much higher than the thermal conductivity of the medium-frame substrate in the existing electronic products, and have better heat dissipation effect.
- the first area includes a region of the main body of the middle frame substrate that needs to be electrically conductive, and the method further includes:
- De-passivation treatment is performed on the region of the first region where conductivity is required to expose the middle frame substrate body or the first metal layer.
- the area that needs to be electrically conductive includes a second area and/or a third area, where the second area is used for an antenna with the electronic product The metal dome is electrically connected, and the third area is for connecting a grounded conductive member of the electronic product to ground the middle frame member.
- the third region is used to contact conductive cloth, conductive foam, and the like of the electronic product to connect with the corresponding conductive members of the electronic product.
- This third region may also be referred to as a grounded conductive region.
- the method further includes:
- a second metal layer is plated in the second region of the middle frame substrate body, and an electrode potential difference between the second metal and the antenna metal dome is smaller than an electrode potential difference between the middle frame substrate body and the antenna metal dome.
- the second metal selected in the embodiment of the present invention satisfies that the electrode potential difference between the second metal and the antenna metal dome is smaller than the electrode potential difference between the middle frame substrate body and the antenna metal dome. Therefore, the second metal layer is in contact with the antenna metal dome.
- the galvanic corrosion is less than the galvanic corrosion between the middle frame substrate body and the antenna metal dome, and when the material of the second metal layer is the same as the material of the antenna metal dome, that is, the electrode of the second metal layer and the antenna metal dome When the potential difference is zero, galvanic corrosion can be avoided.
- the second metal layer having the same or similar electrode potential as that of the antenna metal dome is plated in the area contacted by the gold plated elastic piece, thereby preventing or reducing galvanic corrosion, so that the middle frame member and the gold plated elastic piece can be in good contact. In order to avoid the problem that the signal is not smooth, and improve the user experience.
- the second metal layer is a silver layer or a gold layer
- the second metal layer has a thickness of 0.01 to 50 ⁇ m.
- the embodiment of the invention can prevent or reduce galvanic corrosion by gold plating or silver plating in the area contacted by the gold plated elastic piece, so that the middle frame piece and the gold plated elastic piece can be in good contact, thereby avoiding the problem that the signal is not smooth, and improving the user experience. .
- the method further includes:
- a third metal layer is plated in the third region of the mid-frame substrate body, the third metal layer having a higher resistance to neutral salt spray corrosion than the center frame substrate body.
- the third metal layer is a gold layer or a silver layer; for example, the third metal layer has a thickness of 0.01-50 micrometers.
- the neutral salt spray corrosion resistance is enhanced, and the user experience is improved.
- the third metal layer may also be other metal layers as long as the neutral metal salt spray corrosion resistance of the third metal layer is higher than that of the middle frame foundation, and the embodiment of the present invention is not limited thereto.
- the middle frame substrate comprises any one or various combinations of the following:
- the method further includes:
- the main body of the middle frame substrate is subjected to activation treatment and subjected to zinc immersion treatment.
- the first region in the body of the middle frame substrate is plated with the first metal layer, including:
- the first metal layer is electroplated in the first region after the zinc immersion treatment.
- the method further comprises:
- electroplating the first metal layer in the first region in the body of the middle frame substrate comprises:
- the first metal layer is electroplated in a first region plated with the transition metal layer.
- the transition metal layer has a thickness of 0.01-20 microns.
- the method before the first region is plated with the transition metal layer, the method further includes:
- the plating the transition metal layer in the first region comprises:
- the transition metal layer is plated in the first region of the body of the mid-frame substrate after the blasting treatment and/or the impurity removal treatment.
- the passivating the first metal layer includes:
- a method of producing a middle frame member the middle frame member being a support member for supporting a component of the electronic product inside the electronic product, the middle frame member comprising a middle frame substrate body and located At least one metal plating layer on the surface of the middle frame substrate body, the method comprising:
- the second metal layer having the same or similar electrode potential as that of the antenna metal dome is plated in the area contacted by the gold plated elastic piece, thereby preventing or reducing galvanic corrosion, so that the middle frame member and the gold plated elastic piece can be in good contact. In order to avoid the problem that the signal is not smooth, and improve the user experience.
- the component of the electronic product comprises at least one of a printed circuit board PCB, a chip, a battery, and a screen.
- components in the embodiments of the present invention may further include other components in the electronic product, for example, and may also include components such as an antenna, a camera, and the like, and the embodiment of the present invention is not limited thereto.
- the second metal layer is a silver layer or a gold layer
- the second metal layer has a thickness of 0.01 to 50 ⁇ m.
- the embodiment of the present invention can prevent or reduce galvanic corrosion by gold plating or silver plating in the area contacted by the gold-plated shrapnel, so that the middle frame member and the gold-plated shrapnel can be in good contact, thereby avoiding the problem that the signal is not smooth, and the lifting is improved. user experience.
- the method further includes:
- the third region is used to contact conductive cloth, conductive foam, and the like of the electronic product to connect with the corresponding conductive members of the electronic product.
- This third region may also be referred to as a grounded conductive region.
- the third metal layer is a gold layer or a silver layer
- the third metal layer has a thickness of 0.01 to 50 ⁇ m.
- the neutral salt spray corrosion resistance is enhanced, and the user experience is improved.
- the third metal layer may also be other metal layers as long as the neutral metal salt spray corrosion resistance of the third metal layer is higher than that of the middle frame foundation, and the embodiment of the present invention is not limited thereto.
- the second metal layer and the third metal layer in the embodiment of the present invention may be the same metal layer, and the second metal layer and the third metal layer may be simultaneously plated in the embodiment of the present invention.
- a method of producing a middle frame member wherein the middle frame member is a support member for supporting a component of the electronic product inside the electronic product, the middle frame member comprising a middle frame substrate body and located therein At least one metal plating layer on the surface of the frame substrate body, the method comprising:
- the fog corrosion ability is higher than the center frame substrate body.
- the neutral salt spray corrosion resistance is enhanced, and the user experience is improved.
- the third region is used to contact conductive cloth, conductive foam, and the like of the electronic product to connect with the corresponding conductive members of the electronic product.
- This third region may also be referred to as a grounded conductive region.
- the third metal layer may also be other metal layers as long as the neutral metal salt spray corrosion resistance of the third metal layer is higher than that of the middle frame foundation, and the embodiment of the present invention is not limited thereto.
- the components of the electronic product include at least one of a printed circuit board PCB, a chip, a battery, and a screen.
- components in the embodiments of the present invention may further include other components in the electronic product, for example, and may also include components such as an antenna, a camera, and the like, and the embodiment of the present invention is not limited thereto.
- the third metal layer is a gold layer or a silver layer; for example, the third metal layer has a thickness of 0.01-50 microns.
- a middle frame member is provided, the middle frame member being a support member for supporting components of the electronic product inside the electronic product, the middle frame member comprising:
- the first metal layer is attached to the first region of the main body of the middle frame, the thermal conductivity of the first metal layer is greater than the thermal conductivity of the main body of the middle frame, and the first region includes all of the main body of the middle frame Or a portion of the outer surface, the first metal layer is configured to conduct heat generated by at least one of the parts in contact with or adjacent to the first metal layer to the middle frame substrate body;
- An insulating passivation layer is attached to the surface of the first metal layer.
- the first metal having a high thermal conductivity is attached to the first region of the main body of the middle frame substrate, and the thermal conductivity of the middle frame member is increased by the first metal layer, thereby effectively heating the local heat.
- the heat of the large parts is transferred to the main body of the middle frame in time to avoid the occurrence of excessive local temperature, and the heat of the components of the electronic device is quickly released as soon as possible, thereby improving the middle.
- the heat dissipation performance of the frame is attached to the first region of the main body of the middle frame substrate, and the thermal conductivity of the middle frame member is increased by the first metal layer, thereby effectively heating the local heat.
- the first metal layer transfers heat to the main body of the middle frame substrate
- the first metal layer conducts the local high temperature heat to the entire first metal layer and the middle frame substrate body, wherein the heat transfer Leading to the entire first metal layer for lateral propagation, the conduction to the middle frame substrate body for longitudinal propagation, lateral and longitudinal propagation of heat simultaneously, that is, the first metal layer is used for lateral and longitudinal propagation of heat, in other words
- the first metal layer is used to conduct heat generated by at least one of the parts in contact with or adjacent to the first metal layer to the entire first metal layer and the middle frame substrate body.
- middle frame member is a middle frame member generated by the method of any one of the first aspect and the implementation manner thereof, and the function of forming the respective components in the middle frame member can be referred to the first aspect and the implementation thereof. Corresponding method features in the way.
- the component of the electronic product includes at least one of a printed circuit board PCB, a chip, a battery, and a screen.
- components in the embodiments of the present invention may further include other components in the electronic product, for example, and may also include components such as an antenna, a camera, and the like, and the embodiment of the present invention is not limited thereto.
- the first metal layer includes any one or a combination of the following:
- the first metal layer has a thickness of 0.01 to 50 ⁇ m.
- the first region includes all or a portion of the outer surface of the outer surface of the middle frame substrate body except the region requiring electrical conduction
- the first metal layer is adhered to a region of the outer surface of the middle frame substrate body that needs to be electrically conductive.
- the first metal layer is specifically attached to the first region and the region that needs to be electrically conductive
- the insulating passivation layer is adhered only to the surface of the first metal layer corresponding to the first region.
- the area that needs to be electrically conductive includes a second area and/or a third area, where the second area is used for an antenna with the electronic product The metal dome is electrically connected, and the third area is for connecting a grounded conductive member of the electronic product to ground the middle frame member.
- the middle frame component further includes:
- the second metal layer is attached to the second region of the surface of the middle frame substrate.
- the electrode potential difference between the second metal layer and the antenna metal dome is smaller than the electrode potential difference between the middle frame substrate body and the antenna metal dome.
- the galvanic corrosion can be prevented or reduced, so that the middle frame member It is in good contact with the gold-plated shrapnel, thus avoiding the problem of poor signal and improving the user experience.
- the second metal layer is a silver layer or a gold layer.
- the second metal layer has a thickness of 0.01 to 50 ⁇ m.
- the embodiment of the present invention can prevent or reduce galvanic corrosion by gold plating or silver plating in the area contacted by the gold-plated shrapnel, so that the middle frame member and the gold-plated shrapnel can be in good contact, thereby avoiding the problem that the signal is not smooth, and the lifting is improved. user experience.
- the middle frame component further includes:
- the third metal layer is attached to the third region of the surface of the middle frame substrate body, and the third metal layer has a higher resistance to neutral salt spray corrosion than the middle frame substrate body.
- the third region is used to contact conductive cloth, conductive foam, and the like of the electronic product to connect with the corresponding conductive members of the electronic product.
- This third region may also be referred to as a grounded conductive region.
- the third metal layer is a gold layer or a silver layer.
- the middle frame substrate comprises any one or various combinations of the following:
- the middle frame member when the middle frame substrate is a die-cast magnesium alloy, the middle frame member further includes:
- a zinc layer is disposed between the first metal layer and the body of the center frame substrate.
- the zinc layer may be obtained by subjecting the main body of the middle frame substrate to activation treatment and performing zinc immersion treatment.
- the middle frame component further includes:
- a transition metal layer between the first metal layer and the main body of the middle frame, the bonding ability of the transition metal layer and the main body of the middle frame substrate, and the bonding ability of the transition metal layer and the first metal layer are higher than The ability of the middle frame substrate body to bond with the first metal layer.
- the transition metal layer has a thickness of 0.01-20 micrometers.
- the middle frame substrate body is a middle frame substrate body after sandblasting and/or impurity removal treatment.
- the insulating passivation layer is subjected to a chemical conversion film treatment on the first metal surface, or is sprayed on the surface of the first metal layer Molecular organic matter obtained after coating.
- a middle frame member is provided, wherein the middle frame member is a support member for supporting components of the electronic product inside the electronic product, and the middle frame member comprises:
- a second metal layer attached to the second region of the surface of the middle frame substrate, the second region for connecting to the antenna metal dome of the electronic product, and the electrode potential difference between the second metal layer and the antenna metal dome It is smaller than the electrode potential difference between the middle frame substrate body and the antenna metal dome.
- the galvanic corrosion can be prevented or reduced, so that the middle frame member and the gold plated elastic piece can be in good contact. In order to avoid the problem that the signal is not smooth, and improve the user experience.
- middle frame member is a middle frame member generated by the method of any one of the second aspect and the implementation manner thereof, and the function of forming the respective components in the middle frame member can be referred to the second aspect and the implementation thereof. Corresponding method features in the way.
- the component of the electronic product comprises at least one of a printed circuit board PCB, a chip, a battery, and a screen.
- components in the embodiments of the present invention may further include other components in the electronic product, for example, and may also include components such as an antenna, a camera, and the like, and the embodiment of the present invention is not limited thereto.
- the second metal layer is a silver layer or a gold layer.
- the second metal layer has a thickness of 0.01 to 50 ⁇ m.
- the embodiment of the present invention can prevent or reduce galvanic corrosion by providing a gold layer or a silver layer in a region where the gold-plated shrapnel contacts, so that the middle frame member and the gold-plated shrapnel can be in good contact, thereby avoiding the problem that the signal is not smooth. Improved user experience.
- the middle frame also includes:
- a third metal layer attached to the third region of the surface of the middle frame substrate, the third region being connected
- the electrically conductive component of the electronic product is grounded to ground the middle frame member, and the third metal layer has a higher resistance to neutral salt spray corrosion than the middle frame substrate body.
- the third region is used to contact conductive cloth, conductive foam, and the like of the electronic product to connect with the corresponding conductive members of the electronic product.
- This third region may also be referred to as a grounded conductive region.
- the third metal layer is a gold layer or a silver layer.
- the third metal layer has a thickness of 0.01 to 50 ⁇ m.
- the neutral salt spray corrosion resistance is enhanced, and the user experience is improved.
- the third metal layer may also be other metal layers as long as the neutral metal salt spray corrosion resistance of the third metal layer is higher than that of the middle frame foundation, and the embodiment of the present invention is not limited thereto.
- the second metal layer and the third metal layer in the embodiment of the present invention may be the same metal layer, and the second metal layer and the third metal layer may be simultaneously plated in the embodiment of the present invention.
- a middle frame member is provided, wherein the middle frame member is a support member for supporting components of the electronic product inside the electronic product, and the middle frame member comprises:
- a third metal layer attached to the third region of the surface of the middle frame substrate body, the third region being used for connecting the grounded conductive component of the electronic product to ground the middle frame member, and the third metal layer is resistant
- the neutral salt spray corrosion ability is higher than that of the middle frame substrate.
- the neutral salt spray corrosion resistance is enhanced, and the user experience is improved.
- the third region is used to contact conductive cloth, conductive foam, and the like of the electronic product to connect with the corresponding conductive members of the electronic product.
- This third region may also be referred to as a grounded conductive region.
- the third metal layer may also be other metal layers as long as the neutral metal salt spray corrosion resistance of the third metal layer is higher than that of the middle frame foundation, and the embodiment of the present invention is not limited thereto.
- middle frame member is a middle frame member generated by the method of any one of the third aspect and the implementation manner thereof, and the function of forming the respective components in the middle frame member can be referred to the third aspect and the implementation thereof.
- the corresponding method features in the manner are not described herein for brevity.
- the components of the electronic product include at least one of a printed circuit board PCB, a chip, a battery, and a screen.
- components in the embodiments of the present invention may further include other components in the electronic product, for example, and may also include components such as an antenna, a camera, and the like, and the embodiment of the present invention is not limited thereto.
- the third metal layer is a gold layer or a silver layer
- the third metal layer has a thickness of 0.01 to 50 ⁇ m.
- an electronic product comprising:
- the middle frame member, the component and the outer casing of any one of the fourth aspect to the sixth aspect and the possible implementation thereof the component is housed in the outer casing, the middle frame member is for supporting the component The middle frame member and the outer casing are assembled together.
- the component includes at least one of a printed circuit board PCB, a chip, a battery, and a screen.
- components in the embodiments of the present invention may further include other components in the electronic product, for example, and may also include components such as an antenna, a camera, and the like, and the embodiment of the present invention is not limited thereto.
- the first metal having a high thermal conductivity is plated in the first region of the main body of the middle frame substrate, and the thermal conductivity of the middle frame member is increased by the first metal layer, thereby effectively heating the local heat.
- the heat of the large parts is transferred to the main body of the middle frame in time to avoid the occurrence of excessive local temperature, and the heat of the components of the electronic device is quickly released as soon as possible, thereby improving the middle.
- the heat dissipation performance of the frame is plated in the first region of the main body of the middle frame substrate, and the thermal conductivity of the middle frame member is increased by the first metal layer, thereby effectively heating the local heat.
- the heat of the large parts is transferred to the main body of the middle frame in time to avoid the occurrence of excessive local temperature, and the heat of the components of the electronic device is quickly released as soon as possible, thereby improving the middle.
- the heat dissipation performance of the frame is plated in the first region of the main body of the middle frame substrate, and the thermal conductivity of the
- FIG. 1 is a schematic flow chart of a method of producing a middle frame member in accordance with one embodiment of the present invention.
- FIG. 2 is a schematic flow chart of a method of producing a middle frame member in accordance with another embodiment of the present invention.
- FIG. 3 is a schematic flow chart of a method of producing a middle frame member in accordance with another embodiment of the present invention.
- FIG. 4 is a schematic flow chart of a method of producing a middle frame member in accordance with another embodiment of the present invention.
- FIG. 5 is a schematic flow chart of a method of producing a middle frame member according to another embodiment of the present invention.
- FIG. 6 is a schematic flow chart of a method of producing a middle frame member in accordance with another embodiment of the present invention.
- FIG. 7 is a schematic flow chart of a method of producing a middle frame member in accordance with another embodiment of the present invention.
- Figure 8 is a schematic flow chart of a method of producing a middle frame member in accordance with another embodiment of the present invention.
- FIG. 9 is a schematic flow chart of a method of producing a middle frame member in accordance with another embodiment of the present invention.
- Figure 10 is a schematic flow chart of a method of producing a middle frame member in accordance with another embodiment of the present invention.
- Figure 11 is a schematic block diagram of a middle frame member in accordance with one embodiment of the present invention.
- Figure 12 is a schematic block diagram of a middle frame member in accordance with another embodiment of the present invention.
- Figure 13 is a schematic block diagram of a middle frame member in accordance with another embodiment of the present invention.
- Figure 14 is a schematic block diagram of an electronic product in accordance with one embodiment of the present invention.
- Figure 15 is a schematic block diagram of an electronic product in accordance with one embodiment of the present invention.
- the middle frame member in the embodiment of the present invention is a component for supporting the electronic product inside the electronic product, in other words, the middle frame member can be used for fixing, placing, accommodating or supporting components of the electronic product.
- the middle frame member may be a supporting member for placing a PCB board, a chip or a battery in an electronic product, or the middle frame member is a supporting member for supporting an electronic product screen;
- the electronic product may also be referred to as an electronic device or
- the terminal may include, but is not limited to, a mobile phone, a mobile computer, a portable android device (Pad), a personal digital assistant (PDA), a media player, a smart TV, a smart watch, a smart glasses, a smart bracelet.
- the middle frame member may be a middle frame or a front cover of the mobile phone, a mobile phone screen support plate, a Pad or a computer front case or a screen support plate, etc., and the embodiment of the present invention is not limited thereto.
- the specific shape of the middle frame member is not limited, and the shape of the middle frame member may be determined according to actual use conditions, for example, the middle frame member may include at least one convex or concave portion, or At least one hole or the like is included, and the specific shape of the metal layer on the surface of the main body of the middle frame substrate is not limited in the embodiment of the present invention, and the specific shape of the metal layer can be determined according to actual use.
- the middle frame A support member for supporting a component of the electronic product, the middle frame member comprising a middle frame substrate body and at least one metal plating layer on a surface of the middle frame substrate body, as shown in FIG. include:
- a first metal layer is plated in a first region of the middle frame substrate body, the first metal layer has a thermal conductivity greater than a thermal conductivity of the middle frame substrate body, and the first region includes the middle frame substrate body All or part of the outer surface, the first metal layer is used to conduct heat generated by at least one of the parts in contact with or adjacent to the first metal layer to the middle frame substrate body;
- the first metal having a high thermal conductivity is plated in the first region of the main body of the middle frame substrate, and the thermal conductivity of the middle frame member is increased by the first metal layer, thereby effectively heating the local heat.
- the heat of the large parts is transferred to the main body of the middle frame in time to avoid the occurrence of excessive local temperature, and the heat of the components of the electronic device is quickly released as soon as possible, thereby improving the middle.
- the heat dissipation performance of the frame is plated in the first region of the main body of the middle frame substrate, and the thermal conductivity of the middle frame member is increased by the first metal layer, thereby effectively heating the local heat.
- the heat of the large parts is transferred to the main body of the middle frame in time to avoid the occurrence of excessive local temperature, and the heat of the components of the electronic device is quickly released as soon as possible, thereby improving the middle.
- the heat dissipation performance of the frame is plated in the first region of the main body of the middle frame substrate, and the thermal conductivity of the
- the first region in the example of the present invention may be all or part of the outer surface of the main body of the frame substrate.
- the subsequent ground conductive region is also needed.
- the area contacting the metal dome is etched to expose the substrate body or the first metal for subsequent processing.
- the first area may not include the ground conductive area and the area contacting the metal dome. Instead, the first metal layer is plated in other areas to enhance the thermal conductivity of the middle frame.
- the first area may also include only an area corresponding to a portion where the electronic product has a relatively large heat generation. For example, the area including the camera area and the CPU area may be relatively large, and the first metal layer is plated in the area.
- the first region may also include only the second region and/or the third region mentioned hereinafter, that is, the first metal layer and the third metal layer may be electroplated before the second and third regions are plated.
- the first metal layer, the embodiment of the invention is not limited thereto.
- the first metal layer transfers heat to the main body of the middle frame substrate
- the first metal layer conducts the local high temperature heat to the entire first metal layer and the middle frame substrate body, wherein the heat is transmitted to the whole A metal layer is laterally propagated, and is transmitted to the middle frame substrate body for longitudinal propagation, and lateral and longitudinal propagation of heat are simultaneously performed, that is, the first metal layer is used for lateral and longitudinal propagation of heat, in other words, the first A metal layer is used to conduct heat generated by at least one of the components in contact with or adjacent to the first metal layer to the entire first metal layer and the center frame substrate body.
- the component of the electronic product includes at least one of a printed circuit board PCB, a chip, a battery, and a screen.
- components in the embodiments of the present invention may further include other components in the electronic product, for example, and may also include components such as an antenna, a camera, and the like, and the embodiment of the present invention is not limited thereto.
- the first metal layer includes any one or various combinations of the following: a copper layer, a silver layer, and a gold layer.
- the first metal layer has a thickness of 0.01 to 50 ⁇ m.
- it may be 5 micrometers, 10 micrometers, 15 micrometers, 20 micrometers, etc., and the embodiment of the invention is not limited thereto.
- the embodiment of the present invention increases the overall thermal conductivity of the die-cast alloy body by surface treatment by plating a layer of high thermal conductivity copper (Cu), silver (Ag), and gold (Au).
- Cu copper
- Ag silver
- Au gold
- the thermal conductivity of copper Cu 401W/m.k, Ag 429W/m.k, Au 317W/m.k are much higher than the thermal conductivity of the medium-frame substrate in the existing electronic products, and have better heat dissipation effect.
- the middle frame substrate comprises any one or various combinations of the following: die cast aluminum alloy, die cast magnesium alloy, die cast zinc alloy, and stainless steel.
- the middle frame substrate may be an ADC12 die-cast aluminum alloy, an AZ91D die-cast magnesium alloy, a ZA3 die-cast zinc alloy, an aluminum-zinc die-cast alloy, a die-cast aluminum-magnesium alloy, or a stamped stainless steel, and the like, and the embodiment of the invention is not limited thereto.
- the embodiment of the present invention does not limit the specific processing.
- a chemical conversion film treatment may be performed on the first metal surface, or a polymer organic coating may be sprayed on the surface of the first metal layer.
- Embodiments of the invention are not limited thereto.
- the first area includes a region of the middle of the substrate body that needs to be electrically conductive, and the method further includes:
- De-passivation treatment is performed on the region of the first region where conductivity is required to expose the middle frame substrate body or the first metal layer.
- the insulating layer is removed to expose the middle frame substrate body or the first metal layer, thereby being able to conduct electricity with other components in the electronic product.
- the de-passivation process may be performed by means of laser etching in the embodiment of the present invention, and the de-passivation process may be performed in other manners, for example, a mechanical method, etc., which is not limited by the embodiment of the present invention.
- the area requiring electrical conductivity includes a second area and/or a third a region for electrically connecting to an antenna metal dome of the electronic product, the third region for connecting a grounded conductive component of the electronic product to ground the middle frame member.
- the third region is used to contact conductive cloth, conductive foam, and the like of the electronic product to connect with the corresponding conductive members of the electronic product.
- This third region may also be referred to as a grounded conductive region.
- the method further includes: plating a second metal layer in the second region of the middle frame substrate body, the electrode potential difference between the second metal and the antenna metal dome is less than the middle frame base The electrode body is inferior to the electrode potential of the antenna metal dome.
- the second metal selected in the embodiment of the present invention satisfies that the electrode potential difference between the second metal and the antenna metal dome is smaller than the electrode potential difference between the middle frame substrate body and the antenna metal dome. Therefore, the second metal layer is in contact with the antenna metal dome.
- the galvanic corrosion is less than the galvanic corrosion between the middle frame substrate body and the antenna metal dome, and when the material of the second metal layer is the same as the material of the antenna metal dome, that is, the electrode of the second metal layer and the antenna metal dome When the potential difference is zero, galvanic corrosion can be avoided.
- the second metal layer having the same or similar electrode potential as that of the antenna metal dome is plated in the area contacted by the gold plated elastic piece, thereby preventing or reducing galvanic corrosion, so that the middle frame member and the gold plated elastic piece can be in good contact. In order to avoid the problem that the signal is not smooth, and improve the user experience.
- the second metal layer is a silver layer or a gold layer; for example, the second metal layer has a thickness of 0.01-50 micrometers.
- the existing common middle frame materials such as die-cast aluminum alloy, die-cast magnesium alloy, die-cast zinc alloy, and technical requirements for contact with the gold-plated shrapnel of the antenna ensure the smooth signal of the electronic products such as mobile phones, and currently there is die-casting.
- the difference in electrode potential between the gold elements of the middle frame parts such as aluminum alloy, magnesium alloy, zinc alloy and gold-plated shrapnel, resulting in galvanic corrosion, which results in the gold-plated shrapnel not being in good contact with the middle frame of electronic products such as mobile phones.
- the problem of poor signal generation affects consumers' use.
- the embodiment of the present invention can prevent or reduce galvanic corrosion by gold plating or silver plating in the area contacted by the gold-plated shrapnel, so that the middle frame member and the gold-plated shrapnel can be in good contact, thereby avoiding the problem that the signal is not smooth, and improving the user.
- the embodiment of the present invention can prevent or reduce galvanic corrosion by gold plating or silver plating in the area contacted by the gold-plated shrapnel, so that the middle frame member and the gold-plated shrapnel can be in good contact, thereby avoiding the problem that the signal is not smooth, and improving the user.
- the embodiment of the present invention can prevent or reduce galvanic corrosion by gold plating or silver plating in the area contacted by the gold-plated shrapnel, so that the middle frame member and the gold-plated shrapnel can be in good contact, thereby avoiding the problem that the signal is not smooth, and improving the user.
- the middle frame member and the gold-plated shrapnel
- plating the second metal layer in the second region includes at least two situations.
- the de-passivation treatment is performed first, and then the second metal layer is plated.
- Case 2 the first region does not include the second region, and since the first metal layer is not plated in the second region, in this case, the second metal layer is directly plated in the second region.
- the method further includes:
- a third metal layer is plated in the third region of the mid-frame substrate body, the third metal layer having a higher resistance to neutral salt spray corrosion than the center frame substrate body.
- the third metal layer is a gold layer or a silver layer; for example, the third metal layer has a thickness of 0.01-50 microns.
- the existing middle frame materials especially die-cast aluminum alloys or die-cast magnesium alloys, have insufficient corrosion resistance, especially when a part of the frame of the mobile phone is grounded by laser etching or the like to expose the original surface of the substrate for grounding.
- the existing middle frame materials especially die-cast aluminum alloys or die-cast magnesium alloys, have insufficient corrosion resistance, especially when a part of the frame of the mobile phone is grounded by laser etching or the like to expose the original surface of the substrate for grounding.
- neutral salt spray corrosion there is a risk of being resistant to neutral salt spray corrosion.
- the neutral salt spray corrosion resistance is enhanced, and the user experience is improved.
- the third metal layer may also be other metal layers as long as the neutral metal salt spray corrosion resistance of the third metal layer is higher than that of the middle frame foundation, and the embodiment of the present invention is not limited thereto.
- the second metal layer and the third metal layer in the embodiment of the present invention may be the same metal layer, and the second metal layer and the third metal layer may be simultaneously plated in the embodiment of the present invention.
- the embodiment of the present invention may perform depassivation treatment on the position corresponding to the second region and the third region in the first region to expose the substrate body or the first
- the metal layer is then plated with a second metal layer and a third metal layer.
- the second area and the third area may be different areas, and the second area and the third area do not coincide.
- the method further includes:
- the main body of the middle frame substrate is subjected to activation treatment and subjected to zinc immersion treatment.
- the first metal layer is electroplated in the first region after the zinc immersion treatment.
- the middle frame member is first activated in a fluoride solution, and then subjected to a zinc immersion operation, wherein zinc is used.
- the thickness of the layer may be 3 micrometers, 5 micrometers, or 10 micrometers, etc., which is not limited by the embodiment of the present invention.
- the first embodiment of the present invention performs the electroplating of the first metal layer.
- the method may further include:
- the first metal layer is plated in a first region plated with the transition metal layer.
- the transition metal layer has a thickness of 0.01-20 microns.
- the method of the embodiment of the present invention may first plate a transition metal layer, and the transition metal layer can function as a transition, so that the first metal layer can be electroplated more easily.
- the bonding ability of the transition metal layer and the main body of the middle frame substrate is higher than the bonding ability of the main body of the middle frame substrate and the first metal layer.
- the embodiment of the present invention does not limit the material of the transition metal layer, and may be, for example, nickel or the like. The embodiment of the present invention is not limited thereto.
- the method further includes:
- the plating the transition metal layer in the first region comprises:
- the first region in the body of the mid-frame substrate after blasting and/or de-contamination treatment is plated with a transition metal layer.
- the embodiment of the present invention may perform sandblasting treatment and/or impurity removal treatment, and then perform plating of the transition metal layer, and then electroplating the first metal layer.
- the middle frame substrate body may be slightly sandblasted to remove surface contamination such as a release agent and enhance surface density to achieve subsequent adhesion between the substrate and the film layer. purpose;
- the middle frame is subjected to degreasing treatment and alkali etching treatment and acid etching treatment to remove surface oxides and other surface impurities on the middle frame member to expose the surface of the fresh substrate to facilitate subsequent metallization.
- the aluminum alloy is die-cast with the ADC 12, and the die-cast aluminum alloy is covered with a chemical conversion film, and the region is separated by laser etching to be electrically grounded or contacted with the gold-plated shrapnel.
- the relevant substrate region is exposed by laser etching, there is a problem that it is not resistant to neutral salt spray corrosion, which may cause a risk of poor grounding.
- the ADC12 aluminum alloy is in direct contact with the gold-plated shrapnel, or the gold-plated shrapnel is directly on the ADC12 aluminum alloy, and the galvanic corrosion is severe.
- the embodiment of the present invention may also be covered with a chemical conversion film, and then etched in a conductive ground and/or a region in contact with the gold-plated shrapnel, and then metallized to reduce galvanic corrosion and/or neutrality. Salt spray corrosion.
- a chemical conversion film and then etched in a conductive ground and/or a region in contact with the gold-plated shrapnel, and then metallized to reduce galvanic corrosion and/or neutrality. Salt spray corrosion.
- the middle frame member is a supporting member for supporting components of the electronic product inside the electronic product, the middle frame member comprising a middle frame substrate body and at least one metal plating layer on the surface of the middle frame substrate body
- the method 200 as shown in FIG. 2 may include:
- a second metal layer is plated in the second region of the middle frame substrate body, the second region is used for connecting to an antenna metal dome of the electronic product, and an electrode potential difference between the second metal and the antenna metal dome is It is smaller than the electrode potential difference between the middle frame substrate body and the antenna metal dome.
- the second metal selected in the embodiment of the present invention satisfies that the electrode potential difference between the second metal and the antenna metal dome is smaller than the electrode potential difference between the middle frame substrate body and the antenna metal dome. Therefore, the second metal layer is in contact with the antenna metal dome.
- the galvanic corrosion is less than the galvanic corrosion between the middle frame substrate body and the antenna metal dome, and when the material of the second metal layer is the same as the material of the antenna metal dome, that is, the electrode of the second metal layer and the antenna metal dome When the potential difference is zero, galvanic corrosion can be avoided.
- the second metal layer having the same or similar electrode potential as that of the antenna metal dome is plated in the area contacted by the gold plated elastic piece, thereby preventing or reducing galvanic corrosion, so that the middle frame member and the gold plated elastic piece can be in good contact. In order to avoid the problem that the signal is not smooth, and improve the user experience.
- the component of the electronic product includes at least one of a printed circuit board PCB, a chip, a battery, and a screen.
- components in the embodiments of the present invention may further include other components in the electronic product, for example, and may also include components such as an antenna, a camera, and the like, and the embodiment of the present invention is not limited thereto.
- the antenna metal dome is made of gold
- the second metal layer is a silver layer or a gold layer; for example, the second metal layer has a thickness of 0.01-50 micrometers.
- the embodiment of the present invention can prevent or reduce galvanic corrosion by gold plating or silver plating in the area contacted by the gold-plated shrapnel, so that the middle frame member and the gold-plated shrapnel can be in good contact, thereby avoiding the problem that the signal is not smooth, and the lifting is improved. user experience.
- the method further includes:
- the third region is used to contact conductive cloth, conductive foam, and the like of the electronic product to connect with the corresponding conductive members of the electronic product.
- This third region may also be referred to as a grounded conductive region.
- the third metal layer is a gold layer or a silver layer; for example, the third metal layer has a thickness of 0.01-50 microns.
- the neutral salt spray corrosion resistance is enhanced, and the user experience is improved.
- the third metal layer may also be other metal layers as long as the neutral metal salt spray corrosion resistance of the third metal layer is higher than that of the middle frame foundation, and the embodiment of the present invention is not limited thereto.
- the second metal layer and the third metal layer in the embodiment of the present invention may be the same metal layer, and the second metal layer and the third metal layer may be simultaneously plated in the embodiment of the present invention.
- the middle frame member is a supporting member for supporting components of the electronic product inside the electronic product, and the middle frame member comprises a middle frame substrate body and at least one metal plating layer on the surface of the middle frame substrate body, such as
- the method 300 shown in FIG. 3 can include:
- plating a third metal layer in the third region of the middle frame substrate body is used for connecting the grounded conductive component of the electronic product to ground the middle frame member, the third metal resistance
- the neutral salt spray corrosion ability is higher than that of the middle frame substrate.
- the component of the electronic product includes at least one of a printed circuit board PCB, a chip, a battery, and a screen.
- components in the embodiments of the present invention may further include other components in the electronic product, for example, and may also include components such as an antenna, a camera, and the like, and the embodiment of the present invention is not limited thereto.
- the third metal layer is a gold layer or a silver layer, for example, the third metal layer has a thickness of 0.01-50 microns.
- the neutral salt spray corrosion resistance is enhanced, and the user experience is improved.
- the third region is used to contact conductive cloth, conductive foam, and the like of the electronic product to connect with the corresponding conductive members of the electronic product.
- the third area may also be referred to as ground Conductive area.
- the third metal layer may also be other metal layers as long as the neutral metal salt spray corrosion resistance of the third metal layer is higher than that of the middle frame foundation, and the embodiment of the present invention is not limited thereto.
- the copper plating layer in order to ensure the thermal conductivity of the copper plating layer, is pure copper and pure copper containing a very small amount of impurity elements, and the copper content in the copper plating layer may be 97% or more; In order to ensure the conductivity and galvanic corrosion resistance of silver or gold, the gold or silver plating may be 97% or more in purity; however, the embodiment of the invention is not limited thereto.
- the copper plating process is not limited, and may be cyanide copper plating, acid copper plating, pyrophosphate copper plating, cyanide-free plating cylinder, etc.;
- the silver plating process is not limited, and may be Silver cyanide or non-cyanide silver plating;
- gold plating process is not limited, it can be alkaline cyanide gold plating, acid and neutral gold plating, sulfite gold plating, gold gold plating.
- FIG. 1 to FIG. 3 are merely for helping those skilled in the art to understand the embodiment of the present invention, rather than The embodiments of the present invention are limited to the specific numerical values or specific scenarios illustrated. Those skilled in the art can obviously make various equivalent modifications or changes according to the examples of FIG. 1 to FIG. 3 given, for example, appropriately changing the thickness of the metal layer or the material of the metal, etc., or appropriately reducing some unnecessary Steps and the like, such modifications or variations are also within the scope of the embodiments of the present invention.
- FIG. 4 to FIG. 10 are merely exemplary descriptions, and some steps or processes in the examples of FIG. 4 to FIG. 10 may be omitted in practical applications, and the embodiment of the present invention should be specifically according to specific actual situations. Not limited to this.
- FIG. 4 is a schematic block diagram of a method of producing a middle frame member in accordance with another embodiment of the present invention.
- the substrate of the middle frame member shown in FIG. 4 may be the frame of the ADC12 die-cast aluminum alloy mobile phone.
- the sandblasting treatment and the impurity removal treatment are first performed, and then the overall nickel plating treatment (plating transition metal layer) is performed. Afterwards, the whole copper is plated (plated with the first metal layer), then passivated, and then partially (the area in contact with the metal gold plated shrapnel and the grounded conductive area) is depassivated, and finally, the area where the metal gold plated shrapnel contacts (the second area) Gold plated (second metallized layer) treatment.
- the sandblasting treatment and the impurity removal treatment are first performed, and then the overall nickel plating treatment (plating transition metal layer) is performed. Afterwards, the whole copper is plated (plated with the first metal layer), then passivated, and then partially (
- the method 400 shown in FIG. 4 includes:
- the nickel layer here is the transition metal layer described above.
- Laser etching is performed on the grounded conductive region to remove the passivation layer, expose the Ni plating layer, or expose the substrate.
- the Ni plating layer should be exposed or the substrate should be exposed to avoid the exposed Cu layer.
- a copper plating layer with high thermal conductivity formed on the frame of the ADC12 die-cast aluminum alloy mobile phone and a highly conductive gold plating layer are formed.
- the chip area of the plated frame after heat dissipation is reduced by at least the ADC12 temperature. 1 degree Celsius, and the medium-frame corrosion phenomenon occurred in the 24-hour neutral salt spray experiment. There was no corrosion in the area where the RF signal gold-plated shrapnel and the gold plating layer contacted, and there was no corrosion due to the middle frame or the middle frame and the shrapnel. Signal problems caused by contact with the resulting galvanic spoil.
- FIG. 5 is a schematic block diagram of a method of producing a middle frame member in accordance with another embodiment of the present invention.
- the substrate of the middle frame member shown in FIG. 5 may be a middle frame of the AZ91D die-cast magnesium alloy mobile phone. In the method of FIG.
- the sandblasting treatment and the impurity removal treatment are first performed, and then the whole zinc immersion treatment is performed, and the whole nickel plating treatment is performed ( Plating the transition metal layer), afterwards, the overall copper plating (plating the first metal layer), then passivation, then partial (the area in contact with the metal gold plated shrapnel and the grounded conductive area) to passivate, and finally, in contact with the metal gold plated shrapnel
- the region (second region) and the ground conductive region (third region) are gold plated (plated with a second metal layer and a third metal layer).
- the method 500 shown in FIG. 5 includes:
- the AZ91D die-cast magnesium alloy is slightly blasted to remove surface contamination such as a release agent and enhance the surface density to achieve the purpose of enhancing the adhesion between the substrate and the film layer;
- the middle frame member is activated in a fluoride solution, and then subjected to a zinc immersion operation, thickness 5 Micron
- laser etching is performed on a portion that needs to be in contact with the metal gold plated shrapnel and a portion to be grounded to remove the thickness of the passivation portion to expose the Cu plating layer or the Ni plating layer;
- 508 Perform gold plating on the laser etched area.
- a copper plating layer with high thermal conductivity formed on the frame of the AZ91D die-cast aluminum alloy mobile phone and a highly conductive gold plating layer are formed.
- the heat dissipation of the chip area of the middle frame member after electroplating is reduced by at least AZ91D temperature. 1 degree Celsius, and the medium-frame corrosion phenomenon occurred in the 24-hour neutral salt spray experiment.
- There was no corrosion in the area where the RF signal gold-plated shrapnel and the gold plating layer contacted There was no corrosion due to the middle frame or the middle frame and the shrapnel. Signal problems caused by contact with the resulting galvanic spoil.
- FIG. 6 is a schematic block diagram of a method of producing a middle frame member in accordance with another embodiment of the present invention.
- the substrate of the middle frame member shown in FIG. 6 may be a ZA3 die-cast zinc alloy mobile phone middle frame.
- the sandblasting treatment and the impurity removal treatment are performed first, and then the overall nickel plating treatment (plating transition metal layer) is performed.
- the whole copper is plated (plated with the first metal layer), then passivated, and then partially (the area in contact with the metal gold plated shrapnel and the grounded conductive area) is depassivated, and finally, the area where the metal gold plated shrapnel contacts (the second area)
- the grounded conductive region (third region) is gold plated (plated with a second metal layer and a third metal layer).
- the method 600 shown in FIG. 6 includes:
- laser etching is performed on a portion that needs to be in contact with the metal gold plated elastic piece and a portion that needs to be grounded to remove the thickness of the passivation portion to expose the Cu plating layer or the Ni plating layer;
- a copper plating layer with high thermal conductivity is formed on the frame of the ZA3 die-cast zinc alloy mobile phone, and a highly conductive gold plating layer is formed.
- the chip area of the middle frame member after electroplating is dissipated as compared with the ZA3 die-cast zinc alloy.
- the temperature is reduced by at least 1.5 degrees Celsius, and the medium-frame corrosion phenomenon occurs in the 24-hour neutral salt spray test.
- FIG. 7 is a schematic block diagram of a method of producing a middle frame member in accordance with another embodiment of the present invention.
- the substrate of the middle frame member shown in FIG. 7 may be a frame of an aluminum-zinc die-cast alloy mobile phone.
- the sandblasting treatment and the impurity removal treatment are performed first, and then the overall nickel plating treatment (plating transition metal layer) is performed.
- the whole copper is plated (plated with the first metal layer), then passivated, and then partially (the area in contact with the metal-plated shrapnel and the grounded conductive area) is depassivated, and finally, the area where the metal-plated shrapnel contacts (the second area) And the grounded conductive region (third region) is treated with silver (plated second metal layer and third metal layer).
- the method 700 shown in FIG. 7 includes:
- laser etching is performed on a portion that needs to be in contact with the metal gold plated shrapnel and a portion to be grounded to remove the thickness of the passivation portion to expose the Cu plating layer or the Ni plating layer;
- a copper plating layer with high thermal conductivity is formed on the frame of the die-cast aluminum-zinc alloy mobile phone, and a highly conductive gold plating layer is formed.
- the chip area of the middle frame member after electroplating is dissipated as compared with the temperature of the aluminum-zinc alloy. The reduction is at least 1.5 degrees Celsius, and the medium-frame corrosion phenomenon occurs in the 24-hour neutral salt spray test. There is no corrosion in the area where the RF signal gold-plated shrapnel is in contact with the gold plating layer, and there is no corrosion due to the middle frame or the middle frame. Signal problems caused by galvanic corrosion caused by contact with shrapnel.
- FIG. 8 is a schematic block diagram of a method of producing a middle frame member in accordance with another embodiment of the present invention.
- the substrate of the middle frame member can be the frame of the ADC12 die-cast aluminum alloy mobile phone.
- the sandblasting treatment and the impurity removal treatment are first performed, and then the whole nickel plating treatment (plating transition metal layer) is performed, and then the overall plating is performed.
- the method 800 shown in FIG. 8 includes:
- laser etching is performed on a portion that needs to be in contact with the metal gold plated elastic piece to remove the thickness of the passivation portion to expose the silver plating layer, and laser etching is also performed on the portion requiring the conductive ground to expose the silver plating layer or the substrate;
- a silver coating with high thermal conductivity and high thermal conductivity is formed on the frame of the ADC12 die-cast aluminum alloy mobile phone.
- the heat dissipation of the chip area of the middle frame member after electroplating is reduced by at least 1.2 degrees Celsius.
- the 24-hour neutral salt spray experiment also showed a phenomenon of middle-frame corrosion. No corrosion occurred in the area where the RF signal gold-plated shrapnel and the silver-plated layer were in contact with each other. There was no galvanic couple due to the corrosion of the middle frame or the contact between the middle frame and the shrapnel. Signal problems caused by rot.
- FIG. 9 is a schematic block diagram of a method of producing a middle frame member in accordance with another embodiment of the present invention.
- the substrate of the middle frame member shown in FIG. 9 may be a frame of a die-cast aluminum-magnesium alloy mobile phone.
- the sandblasting treatment and the impurity removal treatment are first performed, and then the overall chemical conversion film treatment is performed, and then the partial (corresponding hair) a region with a large heat, a region in contact with the metal-plated shrapnel and a grounded conductive region) is laser-etched, and then nickel-plated (plated metal layer) is applied to the local region, and then copper plating (plating of the first metal layer) is performed. Finally, gold plating is applied in this region (a second metal layer and a third metal layer are plated).
- the method 900 shown in FIG. 9 includes:
- the middle frame member after plating the etched region is subjected to gold plating treatment in the same region, and the thickness of the gold layer is 5 micrometers;
- a copper plating layer with high thermal conductivity is formed on a partial region of the frame of the die-cast aluminum-magnesium alloy mobile phone, and a highly conductive gold plating layer is formed.
- the chip area of the intermediate frame member after electroplating is dissipated by the die-casting.
- the temperature of the frame of the aluminum-magnesium alloy mobile phone is reduced by at least 1 degree Celsius, and the middle frame corrosion phenomenon occurs in the 8-hour neutral salt spray experiment. There is no corrosion phenomenon in the area where the RF signal gold-plated shrapnel contacts the gold plating layer, and there is no any problem on the mobile phone.
- FIG. 10 is a schematic block diagram of a method of producing a middle frame member in accordance with another embodiment of the present invention.
- the substrate of the middle frame member shown in FIG. 10 may be a middle frame of a stamped stainless steel mobile phone.
- the sandblasting treatment and the impurity removal treatment are first performed, and then the overall nickel plating treatment (plating transition metal layer) is performed.
- the whole is copper-plated (first metal layer is plated), then passivated, then partially (in contact with the metal-plated shrapnel and the grounded conductive area) to passivate, and finally, the area (second area) where the metal-plated shrapnel contacts is gold-plated ( Plated with a second metal layer)
- the method 1000 shown in FIG. 10 includes:
- 1001 removing stainless steel from a surface such as a release agent and enhancing the surface density to achieve the purpose of enhancing the adhesion between the substrate and the film layer;
- a copper plating layer with high thermal conductivity is formed on the frame of the stainless steel mobile phone, and a highly conductive gold plating layer is formed.
- the heat dissipation of the chip area of the plated intermediate frame member is reduced by at least 1.8 degrees Celsius.
- the middle frame corrosion phenomenon also occurred, and there was no corrosion phenomenon in the area where the RF signal gold-plated shrapnel and the gold plating layer contacted, and there was no corrosion caused by the middle frame or the middle frame and the elastic piece. Signal problems caused by galvanic corrosion.
- FIG. 1 to FIG. 10 are only intended to help those skilled in the art to understand the embodiments of the present invention, and the embodiments of the present invention are not limited to the specific numerical values or specific examples illustrated. Those skilled in the art can obviously make various equivalent modifications or changes according to the examples of FIG. 1 to FIG. 10 given, for example, appropriately changing the thickness of the metal layer or the material of the metal, etc., or appropriately reducing some unnecessary Steps and the like, such modifications or variations are also within the scope of the embodiments of the present invention.
- the decontamination and impurity treatment may not be performed.
- the transition layer nickel plating
- the transition layer nickel plating
- only the area in contact with the gold plated elastic piece may be used.
- copper may be plated only in a partial region, for example, In addition to the copper plating and the area outside the grounded conductive area, copper is plated, so that in the subsequent processing, no laser etching is required, but gold or silver is directly plated in the area with the gold-plated shrapnel and the ground conductive. It is also possible to electroplate copper or silver in the middle of the middle frame member, and then perform laser etching to passivate the layer outside the region where the gold plated elastic piece and the grounding conductive region are required, and then perform subsequent processing, etc., and the above deformations should fall into the present. Within the scope of the embodiments of the invention.
- the method of producing the middle frame member of the embodiment of the present invention is described in detail above with reference to FIGS. 1 through 10.
- the middle frame member of the embodiment of the present invention will be described in detail below with reference to FIGS. 11 through 13.
- FIG. 11 is a schematic block diagram of a middle frame member in accordance with one embodiment of the present invention.
- the middle frame member 1100 shown in FIG. 11 is a supporting member for supporting components of the electronic product inside the electronic product. It should be noted that the middle frame member 1100 shown in FIG. 11 corresponds to the method of FIG.
- the components and functions of the middle frame member 1100 of FIG. 11 can be referred to the description in the above method. To avoid repetition, details are not described herein again.
- FIG. 11 is only schematic, and the size and shape of the middle frame member in FIG. 11 are only schematic, and the specific shape of the middle frame member is determined according to actual use, and the embodiment of the present invention does not limit this. set.
- the first region shown in FIG. 11 is a region other than the conductive region in the outer surface of the middle frame substrate body, but the embodiment of the present invention is not limited thereto.
- the first region may be a middle frame base.
- All or part of the outer surface of the outer surface of the material may be, for example, only a region where the amount of heat is relatively large, or the first region may include a conductive region or the like.
- embodiments of the invention are not depicted in the drawings.
- the structure and shape of the middle frame member may be correspondingly modified.
- the middle frame member may further include a second metal layer, or may further include a third metal layer or the like. It is also possible to include a transition metal layer or the like, and such modifications are also within the scope of the embodiments of the present invention.
- embodiments of the invention are not depicted in the drawings.
- the middle frame member 1100 shown in FIG. 11 includes a middle frame substrate body 1110, a first metal layer 1120, and an insulating passivation layer 1130.
- the first metal layer 1120 is attached to the first region of the middle frame substrate body 1110.
- the first metal layer has a thermal conductivity greater than the thermal conductivity of the middle frame substrate.
- the first region includes the middle frame substrate. All or part of the outer surface of the body, the first metal layer is used to conduct heat generated by at least one of the parts in contact with or adjacent to the first metal layer to the middle frame substrate body;
- the insulating passivation layer 1130 is attached to the surface of the first metal layer to be resistant to corrosion and insulation.
- the first metal having a high thermal conductivity is attached to the first region of the main body of the middle frame substrate, and the thermal conductivity of the middle frame member is increased by the first metal layer, thereby effectively heating the local heat.
- the heat of the large parts is transferred to the main body of the middle frame in time to avoid the occurrence of excessive local temperature, and the heat of the components of the electronic device is quickly released as soon as possible, thereby improving the middle.
- the heat dissipation performance of the frame is attached to the first region of the main body of the middle frame substrate, and the thermal conductivity of the middle frame member is increased by the first metal layer, thereby effectively heating the local heat.
- the first metal layer transfers heat to the main body of the middle frame substrate
- the first metal layer conducts the local high temperature heat to the entire first metal layer and the middle frame substrate body, wherein the heat is transmitted to the whole A metal layer is laterally propagated, and is transmitted to the middle frame substrate body for longitudinal propagation, and lateral and longitudinal propagation of heat are simultaneously performed, that is, the first metal layer is used for lateral and longitudinal propagation of heat, in other words, the first A metal layer is used to conduct heat generated by at least one of the components in contact with or adjacent to the first metal layer to the entire first metal layer and the center frame substrate body.
- the component of the electronic product includes at least one of a printed circuit board PCB, a chip, a battery, and a screen.
- components in the embodiments of the present invention may further include other components in the electronic product, for example, and may also include components such as an antenna, a camera, and the like, and the embodiment of the present invention is not limited thereto.
- the insulating passivation layer is chemistry on the first metal surface Conversion film treatment, or after spraying a polymer organic coating on the surface of the first metal layer.
- the insulating passivation layer can also be obtained by other forms in the embodiments of the present invention. Embodiments of the invention are not limited thereto.
- the first metal layer includes any one or various combinations of the following: a copper layer, a silver layer, and a gold layer.
- the first metal layer may have a thickness of 0.01 to 50 microns.
- the embodiment of the present invention increases the overall thermal conductivity of the die-cast alloy body by surface treatment by plating a layer of high thermal conductivity copper (Cu), silver (Ag), and gold (Au).
- Cu copper
- Ag silver
- Au gold
- the thermal conductivity of copper Cu 401W/m.k, Ag 429W/m.k, Au 317W/m.k are much higher than the thermal conductivity of the medium-frame substrate in the existing electronic products, and have better heat dissipation effect.
- the first region includes all or part of an outer surface of the outer surface of the middle frame substrate body except for a region that needs to be electrically conductive, and the outer surface of the middle frame substrate body needs The first metal layer is attached to the electrically conductive region.
- the first metal layer is specifically attached to the first region and the region requiring electrical conduction, and the insulating passivation layer is only attached to the surface of the first metal layer corresponding to the first region.
- the area that needs to be electrically conductive includes a second area and/or a third area, where the second area is used for connecting to an antenna metal dome of the electronic product, and the third area is used for connection.
- the electrically conductive component of the electronic product is grounded to ground the middle frame member.
- the third region is used to contact conductive cloth, conductive foam, and the like of the electronic product to connect with the corresponding conductive members of the electronic product.
- This third region may also be referred to as a grounded conductive region.
- the insulating layer is removed to expose the middle frame substrate body or the first metal layer, thereby being able to conduct electricity with other components in the electronic product.
- the de-passivation process may be performed by means of laser etching in the embodiment of the present invention, and the de-passivation process may be performed in other manners, for example, a mechanical method, etc., which is not limited by the embodiment of the present invention.
- the middle frame component further includes:
- the second metal layer is attached to the second region of the surface of the middle frame substrate.
- the electrode potential difference between the second metal layer and the antenna metal dome is smaller than the electrode potential difference between the middle frame substrate body and the antenna metal dome.
- the present invention satisfies that the electrode potential difference between the second metal and the antenna metal dome is smaller than the electrode potential difference between the middle frame substrate body and the antenna metal dome, and therefore, the second metal layer is in contact with the antenna metal dome.
- the galvanic corrosion is less than the galvanic corrosion between the middle frame substrate body and the antenna metal dome, and when the material of the second metal layer is the same as the material of the antenna metal dome, that is, the electrode potential difference between the second metal layer and the antenna metal dome When it is zero, galvanic corrosion can be avoided.
- the galvanic corrosion can be prevented or reduced, so that the middle frame member and the gold plated elastic piece can be in good contact. In order to avoid the problem that the signal is not smooth, and improve the user experience.
- the second metal layer is a silver layer or a gold layer; for example, the second metal layer has a thickness of 0.01-50 micrometers.
- the existing common middle frame materials such as die-cast aluminum alloy, die-cast magnesium alloy, die-cast zinc alloy, and technical requirements for contact with the gold-plated shrapnel of the antenna ensure the smooth signal of the electronic products such as mobile phones, and currently there is die-casting.
- the difference in electrode potential between the gold elements of the middle frame parts such as aluminum alloy, magnesium alloy, zinc alloy and gold-plated shrapnel, resulting in galvanic corrosion, which results in the gold-plated shrapnel not being in good contact with the middle frame of electronic products such as mobile phones.
- the problem of poor signal generation affects consumers' use.
- the gold layer or the silver layer is disposed in the area where the gold plated elastic piece contacts, which can prevent or reduce galvanic corrosion, so that the middle frame member and the gold plated elastic piece can be in good contact, thereby avoiding the problem that the signal is not smooth, and improving.
- the user experience is disposed in the area where the gold plated elastic piece contacts, which can prevent or reduce galvanic corrosion, so that the middle frame member and the gold plated elastic piece can be in good contact, thereby avoiding the problem that the signal is not smooth, and improving.
- the second region in the embodiment of the present invention may be obtained by, for example, the following manner.
- the second metal layer may be disposed through at least two situations.
- depassivation is performed first.
- a second metal layer is plated.
- Case 2 the first region does not include the second region, and since the first metal layer is not plated in the second region, in this case, the second metal layer is directly plated in the second region.
- the middle frame component may further include:
- the third metal layer is attached to the third region of the surface of the middle frame substrate body, and the third metal layer has a higher resistance to neutral salt spray corrosion than the middle frame substrate body.
- the third metal layer is a gold layer or a silver layer
- the third metal layer has a thickness of 0.01 to 50 ⁇ m.
- the neutral salt spray corrosion resistance is enhanced, and the user experience is improved.
- the third metal layer may also be other metal layers as long as the neutral metal salt spray corrosion resistance of the third metal layer is higher than that of the middle frame foundation, and the embodiment of the present invention is not limited thereto.
- the second metal layer and the third metal layer in the embodiment of the present invention may be the same metal layer, and the second metal layer and the third metal layer may be simultaneously plated in the embodiment of the present invention.
- the embodiment of the present invention may perform depassivation treatment on the position corresponding to the second region and the third region in the first region to expose the substrate body or the first
- the metal layer is then plated with a second metal layer and a third metal layer.
- the second area and the third area may be different areas, and the second area and the third area do not coincide.
- the middle frame substrate comprises any one or various combinations of the following: die cast aluminum alloy, die cast magnesium alloy, die cast zinc alloy, and stainless steel.
- the middle frame substrate may be an ADC12 die-cast aluminum alloy, an AZ91D die-cast magnesium alloy, a ZA3 die-cast zinc alloy, an aluminum-zinc die-cast alloy, a die-cast aluminum-magnesium alloy, or a stamped stainless steel, and the like, and the embodiment of the invention is not limited thereto.
- the middle frame member when the middle frame substrate is a die cast magnesium alloy, the middle frame member further includes:
- the zinc layer is located between the first metal layer and the main body of the middle frame substrate, and is obtained by activating the main body of the middle frame substrate and performing zinc immersion treatment.
- the middle frame member is first activated in a fluoride solution, and then subjected to a zinc immersion operation, wherein zinc is used.
- the thickness of the layer may be 3 micrometers, 5 micrometers, or 10 micrometers, etc., which is not limited by the embodiment of the present invention.
- the first metal layer is electroplated as described above in the embodiment of the present invention.
- the middle frame component further includes:
- a transition metal layer between the first metal layer and the main body of the middle frame, the bonding ability of the transition metal layer and the main body of the middle frame substrate, and the bonding ability of the transition metal layer and the first metal layer are higher than The ability of the middle frame substrate body to bond with the first metal layer.
- the transition metal layer has a thickness of 0.01-20 microns.
- the transition metal layer has a bonding ability with the middle frame substrate body
- the transition metal The bonding ability of the layer and the first metal layer is higher than that of the first metal substrate and the first metal layer.
- the embodiment of the present invention does not limit the material of the transition metal layer, for example, nickel. Etc., embodiments of the invention are not limited thereto.
- the middle frame substrate body is a middle frame substrate body after sandblasting and/or impurity removal treatment.
- the embodiment of the present invention may perform sand blasting treatment and/or impurity removal treatment, and then perform a plating transition metal layer, and then electroplating. A metal layer is treated.
- the middle frame substrate body may be slightly sandblasted to remove surface contamination such as a release agent and enhance surface density to achieve subsequent enhancement.
- surface contamination such as a release agent and enhance surface density to achieve subsequent enhancement.
- the middle frame is subjected to degreasing treatment and alkali etching treatment and acid etching treatment to remove surface oxides and other surface impurities on the middle frame member to expose the surface of the fresh substrate to facilitate subsequent metallization.
- FIG. 12 is a schematic block diagram of a middle frame member in accordance with another embodiment of the present invention.
- the middle frame member 1200 shown in FIG. 12 is a supporting member for use in an electronic product. It should be noted that the middle frame member 1200 shown in FIG. 12 corresponds to the method of FIG. 2 and can be obtained by the method of FIG.
- the middle frame member 1200 shown in FIG. 12 corresponds to the method of FIG. 2 and can be obtained by the method of FIG.
- the middle frame member 1200 of the 12 refer to the description in the above method. To avoid repetition, details are not described herein again.
- FIG. 12 is only schematic.
- the size and shape of the middle frame member in FIG. 12 are only schematic.
- the specific shape of the middle frame member is determined according to actual use, and the embodiment of the present invention does not limit this.
- the structure and shape of the middle frame member may be correspondingly modified.
- the middle frame member may further include a first metal layer, a third metal layer, etc., and may further include a transition metal. Such modifications are also within the scope of embodiments of the present invention. In order to avoid repetition, the embodiments of the present invention are not drawn to the drawings.
- the middle frame member 1200 shown in FIG. 12 includes a substrate body 1210 and a second metal layer 1220.
- the second metal layer 1220 is attached to the second region of the surface of the middle frame substrate body 1210.
- the second region is used for connecting with the antenna metal dome of the electronic product, and the second metal and the electrode of the antenna metal dome
- the potential difference is smaller than the electrode potential difference between the middle frame substrate body and the antenna metal dome.
- the present invention satisfies that the electrode potential difference between the second metal and the antenna metal dome is smaller than the electrode potential difference between the middle frame substrate body and the antenna metal dome, and therefore, the second metal layer is in contact with the antenna metal dome.
- the galvanic corrosion is less than the galvanic corrosion between the middle frame substrate body and the antenna metal dome, and when the material of the second metal layer is the same as the material of the antenna metal dome, that is, the electrode potential difference between the second metal layer and the antenna metal dome When it is zero, galvanic corrosion can be avoided.
- the galvanic corrosion can be prevented or reduced, so that the middle frame member and the gold plated elastic piece can be in good contact. In order to avoid the problem that the signal is not smooth, and improve the user experience.
- the component of the electronic product includes at least one of a printed circuit board PCB, a chip, a battery, and a screen.
- components in the embodiments of the present invention may further include other components in the electronic product, for example, and may also include components such as an antenna, a camera, and the like, and the embodiment of the present invention is not limited thereto.
- the second metal layer is a silver layer or a gold layer; for example, the second metal layer has a thickness of 0.01-50 micrometers.
- the embodiment of the present invention can prevent or reduce galvanic corrosion by providing a gold layer or a silver layer in a region in contact with the gold-plated shrapnel, so that the middle frame member and the gold-plated shrapnel can be in good contact, thereby avoiding the problem that the signal is not smooth. , improved user experience.
- the middle frame member may further include:
- a third metal layer attached to the third region of the surface of the middle frame substrate, the third region connecting the grounded conductive member of the electronic product to ground the middle frame member, and the third metal layer is resistant to neutrality
- the salt spray corrosion ability is higher than that of the middle frame substrate.
- the third region is used to contact conductive cloth, conductive foam, and the like of the electronic product to connect with the corresponding conductive members of the electronic product.
- This third region may also be referred to as a grounded conductive region.
- the third metal layer is a gold layer or a silver layer
- the third metal layer has a thickness of 0.01 to 50 ⁇ m.
- the neutral salt spray corrosion resistance is enhanced, and the user experience is improved.
- the third metal layer may also be other metal layers as long as the neutral metal salt spray corrosion resistance of the third metal layer is higher than that of the middle frame foundation, and the embodiment of the present invention is not limited thereto.
- the second metal layer and the third metal layer in the embodiment of the present invention may be the same metal layer, and the second metal layer and the third metal layer may be simultaneously plated in the embodiment of the present invention.
- FIG. 13 is a schematic block diagram of a middle frame member in accordance with another embodiment of the present invention.
- the middle frame member 1300 shown in FIG. 13 is a supporting member for use in an electronic product. It should be noted that the middle frame member 1300 shown in FIG. 13 corresponds to the method of FIG. 3 and can be obtained by the method of FIG.
- the middle frame member 1300 shown in FIG. 13 corresponds to the method of FIG. 3 and can be obtained by the method of FIG.
- FIG. 13 is only schematic.
- the size and shape of the middle frame member in FIG. 13 are only schematic.
- the specific shape of the middle frame member is determined according to actual use, and the embodiment of the present invention does not limit this.
- the structure and shape of the middle frame member may be correspondingly modified according to the context of the embodiment of the present invention.
- the middle frame member may further include a first metal layer, a third metal layer, a transition metal layer, and the like. Modifications are also within the scope of embodiments of the invention. In order to avoid repetition, the embodiments of the present invention are not drawn to the drawings.
- the middle frame member 1300 shown in FIG. 13 includes a substrate body 1310 and a third metal layer 1320.
- the third metal layer 1320 is attached to the third region of the surface of the middle frame substrate body, and the third region is used for connecting the grounded conductive member of the electronic product to ground the middle frame member, the third metal layer
- the resistance to neutral salt spray corrosion is higher than that of the middle frame substrate.
- the component of the electronic product includes at least one of a printed circuit board PCB, a chip, a battery, and a screen.
- components in the embodiments of the present invention may further include other components in the electronic product, for example, and may also include components such as an antenna, a camera, and the like, and the embodiment of the present invention is not limited thereto.
- the third metal layer is a gold layer or a silver layer; the third metal layer has a thickness of 0.01-50 microns.
- the neutral salt spray corrosion resistance is enhanced, and the user experience is improved.
- the third region is used to contact conductive cloth, conductive foam, and the like of the electronic product to connect with the corresponding conductive members of the electronic product.
- This third region may also be referred to as a grounded conductive region.
- the third metal layer may also be other metal layers as long as the neutral metal salt spray corrosion resistance of the third metal layer is higher than that of the middle frame foundation, and the embodiment of the present invention is not limited thereto.
- Figure 14 is a schematic block diagram of an electronic product in accordance with another embodiment of the present invention.
- Figure 14 shows the electricity
- the sub-product 1400 includes a middle frame member 1410, a component 1420, and a housing 1430 as shown in FIGS. 11 to 13, and the component 1420 is housed in the housing 1430 for supporting the component 1420.
- the middle frame member 1410 and the outer casing 1430 are assembled.
- the outer casing 1430 can be used to protect the middle frame member 1410 and the component 1420.
- the electronic product 1400 may include, but is not limited to, a mobile phone, a pad, a computer, an e-book, a mobile station, etc., as long as the component has a middle frame member, a middle frame supported component, and a housing. Embodiments of the invention are not limited thereto.
- the component 1420 can include at least one of a printed circuit board PCB, a chip, a battery, and a screen.
- the components in the embodiments of the present invention may further include other components, for example, an antenna, a camera, and the like, and the embodiment of the present invention is not limited thereto.
- FIG. 15 is a structural block diagram of the electronic device 1400 when the electronic product 1400 is a mobile phone.
- the electronic mobile phone 1500 shown in FIG. 15 may include: a screen, such as a touch panel (TP) and a liquid crystal display (Liquid crystal display, LCD) is a TP-LCD; a middle frame member; a battery; a main board, wherein the main board may include a printed circuit board PCB, a chip, a camera, etc.; an antenna holder may be used for placing the antenna; and an outer casing, such as a battery cover assembly.
- TP touch panel
- LCD liquid crystal display
- FIG. 15 is only schematic, and the shapes and configurations of the respective product components in FIG. 15 are only schematic, and the specific shapes and positions of the respective components may be changed according to actual use, which is not limited by the embodiment of the present invention.
- B corresponding to A means that B is associated with A, and root According to A, B can be determined.
- determining B from A does not mean that B is only determined based on A, and that B can also be determined based on A and/or other information.
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Abstract
本发明实施例提供了一种中框件及其生产方法,该中框件为电子产品内部用于支持该电子产品的零部件的支持构件,该中框件包括:中框基材本体;第一金属层,附着于该中框基材本体的第一区域,该第一金属层的导热系数大于该中框基材本体的导热系数,该第一区域包括该中框基材本体的全部或部分外表面,该第一金属层用于将与该第一金属层接触或相邻的至少一个该零部件产生的热量传导至整个该第一金属及该中框基材本体;绝缘钝化层,附着于该第一金属层的表面。本发明实施例能够提升了该中框件的散热性能。
Description
本申请要求于2015年11月16日提交中国专利局、申请号为201510782892.X、发明名称为“中框件及其生产方法”的中国专利申请的优先权,其全部内容通过引用结合在本申请中。
本发明涉及通信领域,特别涉及一种中框件及其生产方法。
随着电子产品的发展,电子产品对散热的需求越来越高,现有的电子产品的中框件的材料已逐渐无法满足当前的散热需求,例如,当前的手机中框材料已逐渐无法满足当前的散热需求,特别是功耗相对较大的手机芯片区域,发热量较大,导致中框件的局部位置温度过高,现有的手机中框常用材料为压铸镁合金、不锈钢、压铸铝合金、压铸锌合金,其导热系数在10~160W/m.k之间,不能快速的进行热传导,使得中框件中该局部高温区域的热量无法及时的传递到低温区域,进而不能有效的降低该局部高温位置的温度,无法满足当前的手机散热应用要求。
因此,如何提高电子产品的中框件的散热性能,成为亟待解决的问题。
发明内容
本发明实施例提供了一种中框件及其生产方法,该方法能够提高电子产品的中框件的散热性能。
第一方面,提供了一种生产中框件的方法,该中框件为电子产品内部用于支持该电子产品的零部件的支持构件,该中框件包括中框基材本体和位于该中框基材本体表面上的至少一层金属电镀层,该方法包括:
在该中框基材本体中的第一区域电镀第一金属层,该第一金属的导热系数大于该中框基材本体的导热系数,该第一区域包括该中框基材本体的全部或部分外表面,该第一金属层用于将与该第一金属层接触或相邻的至少一个该零部件产生的热量传导至该中框基材本体;
对该第一金属层进行钝化处理,使得该第一金属层表面形成用于抗腐蚀
的绝缘钝化层。
因此,本发明实施例通过在中框基材本体的第一区域电镀了高热导系数的第一金属,通过第一金属层增加了该中框件的热导能力,进而能够有效的将局部发热大的零部件的热量及时地传递到中框基材本体,避免局部温度过高的产生,并且有利于中框基材本体尽快的将电子设备的零部件产生的热量导出,从而提升了该中框件的散热性能。
应理解,本发明实例中的第一区域可以中框基材本体的全部也可以是部分外表面,例如,当第一区域是中框基材本体的全部时,后续的还需要在接地导电区域和接触金属弹片的区域进行刻蚀,以露出基材本体或第一金属,以便于进行后续的处理。其中,第一区域可以不包括上述接地导电区域和接触金属弹片的区域。而是在其他区域电镀第一金属层,增强中框件的导热性能。再有,第一区域也可以仅包括电子产品发热比较大的部分对应的区域,例如,可以只包括摄像头区域、CPU区域等发热量相对比较大的区域,在该区域电镀第一金属层,提升中框件的导热性能。再有,第一区域也可以仅包括下文中提到的第二区域和/或第三区域,也就是说在第二区域和第三区域电镀第二金属层和第三金属层之前可以先电镀第一金属层,本发明实施例并不限于此。
应理解,第一金属层将热量传导致中框基材本体时,可以理解为第一金属层将该局部高温热量传导至整个第一金属层及中框基材本体,其中热量传导至整个第一金属层为横向传播,传导至中框基材本体为纵向传播,热量的横向传播和纵向传播同时进行,也就是说,第一金属层用于横向和纵向传播热量,换句话说,该第一金属层用于将与该第一金属层接触或相邻的至少一个该零部件产生的热量传导至整个该第一金属层及该中框基材本体。
本发明实施例只要能够形成绝缘钝化层即可,本发明实施例并不对具体的处理做限定。例如,可以在该第一金属表面进行化学转换膜处理,或在该第一金属层表面喷涂高分子有机物涂层。本发明实施例并不限于此。
结合第一方面及其上述实现方式,在第一方面的另一种实现方式中,该电子产品的零部件包括印制电路板(Printed Circuit Board,PCB)、芯片、电池和屏幕中的至少一种。
应理解,本发明实施例中的零部件还可以包括该电子产品中的其他部件,例如,还可以包括天线、摄像头等部件,本发明实施例并不限于此。
结合第一方面及其上述实现方式,在第一方面的另一种实现方式中,该第一金属层包括下面的任意一种或各种组合:
铜层、银层以及金层。
该第一金属层的厚度为0.01-50微米。
因此,本发明实施例通过表面处理镀一层高导热系数的铜Cu、银Ag、金Au的方式增加压铸合金本体的总体导热能力。其中铜的导热系数Cu 401W/m.k、Ag 429W/m.k;Au 317W/m.k,都远远高于当前现有的电子产品中的中框基材的导热系数,具有更好的散热效果。
结合第一方面及其上述实现方式,在第一方面的另一种实现方式中,该第一区域包括该中框基材本体中需要导电的区域,该方法还包括:
在该第一区域的需要导电的区域进行去钝化处理,以露出该中框基材本体或该第一金属层。
结合第一方面及其上述实现方式,在第一方面的另一种实现方式中,该需要导电的区域包括第二区域和/或第三区域,该第二区域用于与该电子产品的天线金属弹片电连接,该第三区域用于连接该电子产品的接地的导电部件,以将该中框件接地。
例如,第三区域用于接触电子产品的导电布、导电泡棉等一些导电的辅助材料,以与该电子产品的对应导电部件连接。该第三区域也可以称为接地导电区域。
结合第一方面及其上述实现方式,在第一方面的另一种实现方式中,该方法还包括:
在该中框基材本体中的第二区域电镀第二金属层,该第二金属与该天线金属弹片的电极电位差小于该中框基材本体与该天线金属弹片的电极电位差。
应理解,由于不同金属的电极电位不同,接触的两个不同金属间会存在电偶腐蚀,并且,两个金属的电极电位差越大,电偶腐蚀越严重。本发明实施例中选取的第二金属满足第二金属与天线金属弹片的电极电位差小于该中框基材本体与该天线金属弹片的电极电位差,因此,第二金属层与天线金属弹片接触间的电偶腐蚀小于中框基材本体与天线金属弹片间的电偶腐蚀,并且,当第二金属层的材料与天线金属弹片的材料相同时,即第二金属层与天线金属弹片的电极电位差为零时,能够避免电偶腐蚀。
因此,本发明实施例通过在镀金弹片接触的区域电镀与天线金属弹片的电极电位相同或相近的第二金属层,能够防止或降低电偶腐蚀,使得中框件与镀金弹片能够很好的接触,进而避免了信号不畅通的问题,提升了用户体验。
结合第一方面及其上述实现方式,在第一方面的另一种实现方式中,当该天线金属弹片的材质为金时,
该第二金属层为银层或金层;
该第二金属层的厚度为0.01-50微米。
本发明实施例通过在于镀金弹片接触的区域镀金或镀银,能够防止或降低电偶腐蚀,使得中框件与镀金弹片能够很好的接触,进而避免了信号不畅通的问题,提升了用户体验。
结合第一方面及其上述实现方式,在第一方面的另一种实现方式中,该方法还包括:
在该中框基材本体中的第三区域电镀第三金属层,该第三金属层的抗中性盐雾腐蚀能力高于该中框基材本体。
结合第一方面及其上述实现方式,在第一方面的另一种实现方式中,该第三金属层为金层或银层;例如,该第三金属层的厚度为0.01-50微米。
本发明实施例中,通过在接地导电的区域镀第三金属层,增强了耐中性盐雾腐蚀能力,提升了用户体验。
应理解,第三金属层还可以为其他金属层,只要第三金属层的耐中性盐雾腐蚀性高于中框基础即可,本发明实施例并不限于此。
结合第一方面及其上述实现方式,在第一方面的另一种实现方式中,该中框基材包括下面的任意一种或各种组合:
压铸铝合金、压铸镁合金、压铸锌合金以及不锈钢。
结合第一方面及其上述实现方式,在第一方面的另一种实现方式中,在该中框基材为压铸镁合金的情况下,该在该中框基材本体中的第一区域电镀第一金属层之前,该方法还包括:
对该中框基材本体进行活化处理,并进行浸锌处理,
相应地,该在该中框基材本体中的第一区域电镀第一金属层,包括:
在浸锌处理后的该第一区域电镀第一金属层。
结合第一方面及其上述实现方式,在第一方面的另一种实现方式中,在
该中框基材本体中的第一区域电镀第一金属层之前,该方法还包括:
在该第一区域镀过渡金属层,该过渡金属层与该中框基材本体的结合能力、该过渡金属层与该第一金属层的结合能力均高于该中框基材本体与该第一金属层的结合能力,
相应地,在该中框基材本体中的第一区域电镀第一金属层,包括:
在镀有该过渡金属层的第一区域电镀该第一金属层。
结合第一方面及其上述实现方式,在第一方面的另一种实现方式中,该过渡金属层的厚度为0.01-20微米。
结合第一方面及其上述实现方式,在第一方面的另一种实现方式中,在该第一区域镀过渡金属层之前,该方法还包括:
对该中框基材本体进行喷砂处理和/或去杂质处理,获得喷砂处理和/或去杂质处理后的该中框基材本体,
相应地,该在该第一区域镀过渡金属层,包括:
在经过的喷砂处理和/或去杂质处理后的该中框基材本体中的第一区域镀过渡金属层。
结合第一方面及其上述实现方式,在第一方面的另一种实现方式中,该对该第一金属层进行钝化处理,包括:
在该第一金属表面进行化学转换膜处理,或在该第一金属层表面喷涂高分子有机物涂层。
第二方面,提供了一种生产中框件的方法,该中框件为用于电子产品内部用于支持该电子产品的零部件的支持构件,该中框件包括中框基材本体和位于该中框基材本体表面上的至少一层金属电镀层,该方法包括:
在该中框基材本体中的第二区域电镀第二金属层,该第二区域用于与该电子产品的天线金属弹片相连接,该第二金属与该天线金属弹片的电极电位差小于该中框基材本体与该天线金属弹片的电极电位差。
因此,本发明实施例通过在镀金弹片接触的区域电镀与天线金属弹片的电极电位相同或相近的第二金属层,能够防止或降低电偶腐蚀,使得中框件与镀金弹片能够很好的接触,进而避免了信号不畅通的问题,提升了用户体验。
结合第二方面,在第二方面的一种实现方式中,该电子产品的零部件包括印制电路板PCB、芯片、电池和屏幕中的至少一种。
应理解,本发明实施例中的零部件还可以包括该电子产品中的其他部件,例如,还可以包括天线、摄像头等部件,本发明实施例并不限于此。
结合第二方面及其上述实现方式,在第二方面的另一种实现方式中,
当该天线金属弹片的材质为金时,
该第二金属层为银层或金层;
该第二金属层的厚度为0.01-50微米。
因此,本发明实施例通过在于镀金弹片接触的区域镀金或镀银,能够防止或降低电偶腐蚀,使得中框件与镀金弹片能够很好的接触,进而避免了信号不畅通的问题,提升了用户体验。
结合第二方面及其上述实现方式,在第二方面的另一种实现方式中,该方法还包括:
在该中框基材本体中的第三区域电镀第三金属层,该第三区域用于连接该电子产品的接地的导电部件,以将该中框件接地,该第三金属层的抗中性盐雾腐蚀能力高于该中框基材本体。
例如,第三区域用于接触电子产品的导电布、导电泡棉等一些导电的辅助材料,以与该电子产品的对应导电部件连接。该第三区域也可以称为接地导电区域。
结合第二方面及其上述实现方式,在第二方面的另一种实现方式中,该第三金属层为金层或银层;
该第三金属层的厚度为0.01-50微米。
因此,本发明实施例中,通过在接地导电的区域镀第三金属层,增强了耐中性盐雾腐蚀能力,提升了用户体验。
应理解,第三金属层还可以为其他金属层,只要第三金属层的耐中性盐雾腐蚀性高于中框基础即可,本发明实施例并不限于此。
应注意,本发明实施例中的第二金属层和第三金属层可以为同一种金属层,并且,本发明实施例中可以同时进行电镀第二金属层和第三金属层。
第三方面,提供了一种生产中框件的方法,该中框件为电子产品内部用于支持该电子产品的零部件的支持构件,该中框件包括中框基材本体和位于该中框基材本体表面上的至少一层金属电镀层,该方法包括:
在该中框基材本体中的第三区域电镀第三金属层,该第三区域用于连接该电子产品的接地的导电部件,以将该中框件接地,该第三金属的抗中性盐
雾腐蚀能力高于该中框基材本体。
因此,本发明实施例中,通过在接地导电的区域镀第三金属层,增强了耐中性盐雾腐蚀能力,提升了用户体验。
例如,第三区域用于接触电子产品的导电布、导电泡棉等一些导电的辅助材料,以与该电子产品的对应导电部件连接。该第三区域也可以称为接地导电区域。
应理解,第三金属层还可以为其他金属层,只要第三金属层的耐中性盐雾腐蚀性高于中框基础即可,本发明实施例并不限于此。
结合第三方面,在第三方面的一种实现方式中,
该电子产品的零部件包括印制电路板PCB、芯片、电池和屏幕中的至少一种。
应理解,本发明实施例中的零部件还可以包括该电子产品中的其他部件,例如,还可以包括天线、摄像头等部件,本发明实施例并不限于此。
结合第三方面及其上述实现方式,在第三方面的另一种实现方式中,
该第三金属层为金层或银层;例如,该第三金属层的厚度为0.01-50微米。
第四方面,提供了一种中框件,该中框件为电子产品内部用于支持该电子产品的零部件的支持构件,该中框件包括:
中框基材本体;
第一金属层,附着于该中框基材本体的第一区域,该第一金属层的导热系数大于该中框基材本体的导热系数,该第一区域包括该中框基材本体的全部或部分外表面,该第一金属层用于将与该第一金属层接触或相邻的至少一个该零部件产生的热量传导至该中框基材本体;
绝缘钝化层,附着于该第一金属层的表面。
因此,本发明实施例通过在中框基材本体的第一区域附着了高热导系数的第一金属,通过第一金属层增加了该中框件的热导能力,进而能够有效的将局部发热大的零部件的热量及时地传递到中框基材本体,避免局部温度过高的产生,并且有利于中框基材本体尽快的将电子设备的零部件产生的热量导出,从而提升了该中框件的散热性能。
应理解,第一金属层将热量传导致中框基材本体时,可以理解为第一金属层将该局部高温热量传导至整个第一金属层及中框基材本体,其中热量传
导至整个第一金属层为横向传播,传导至中框基材本体为纵向传播,热量的横向传播和纵向传播同时进行,也就是说,第一金属层用于横向和纵向传播热量,换句话说,该第一金属层用于将与该第一金属层接触或相邻的至少一个该零部件产生的热量传导至整个该第一金属层及该中框基材本体。
应理解,该中框件为经过第一方面及其实现方式中的任一实现方式的方法而生成的中框件,该中框件中构成解各个构件的作用可参见第一方面及其实现方式中的相应方法特征。
结合第四方面及其上述实现方式,在第四方面的另一种实现方式中,该电子产品的零部件包括印制电路板PCB、芯片、电池和屏幕中的至少一种。
应理解,本发明实施例中的零部件还可以包括该电子产品中的其他部件,例如,还可以包括天线、摄像头等部件,本发明实施例并不限于此。
结合第四方面及其上述实现方式,在第四方面的另一种实现方式中,该第一金属层包括下面的任意一种或各种组合:
铜层、银层以及金层。例如,该第一金属层的厚度为0.01-50微米。
结合第四方面及其上述实现方式,在第四方面的另一种实现方式中,该第一区域包括该中框基材本体的外表面中除需要导电的区域之外的全部或部分外表面,该中框基材本体的外表面中需要导电的区域附着有该第一金属层。
换句话说,该第一金属层具体附着于该第一区域和该需要导电的区域,
该绝缘钝化层仅附着于与该第一区域对应的第一金属层的表面。
结合第四方面及其上述实现方式,在第四方面的另一种实现方式中,该需要导电的区域包括第二区域和/或第三区域,该第二区域用于与该电子产品的天线金属弹片电连接,该第三区域用于连接该电子产品的接地的导电部件,以将该中框件接地。
结合第四方面及其上述实现方式,在第四方面的另一种实现方式中,该中框件还包括:
第二金属层,附着于该中框基材本体表面的第二区域,该第二金属层与该天线金属弹片的电极电位差小于该中框基材本体与该天线金属弹片的电极电位差。
因此,本发明实施例通过在镀金弹片接触的区域附着与天线金属弹片的电极电位相同或相近的第二金属层,能够防止或降低电偶腐蚀,使得中框件
与镀金弹片能够很好的接触,进而避免了信号不畅通的问题,提升了用户体验。
结合第四方面及其上述实现方式,在第四方面的另一种实现方式中,当该天线金属弹片的材质为金时,该第二金属层为银层或金层。例如,该第二金属层的厚度为0.01-50微米。
因此,本发明实施例通过在于镀金弹片接触的区域镀金或镀银,能够防止或降低电偶腐蚀,使得中框件与镀金弹片能够很好的接触,进而避免了信号不畅通的问题,提升了用户体验。
结合第四方面及其上述实现方式,在第四方面的另一种实现方式中,该中框件还包括:
第三金属层,附着于该中框基材本体表面的第三区域,该第三金属层的抗中性盐雾腐蚀能力高于该中框基材本体。
例如,第三区域用于接触电子产品的导电布、导电泡棉等一些导电的辅助材料,以与该电子产品的对应导电部件连接。该第三区域也可以称为接地导电区域。
结合第四方面及其上述实现方式,在第四方面的另一种实现方式中,该第三金属层为金层或银层。
结合第四方面及其上述实现方式,在第四方面的另一种实现方式中,该中框基材包括下面的任意一种或各种组合:
压铸铝合金、压铸镁合金、压铸锌合金以及不锈钢。
结合第四方面及其上述实现方式,在第四方面的另一种实现方式中,在该中框基材为压铸镁合金时,该中框件还包括:
锌层,位于该第一金属层和该中框基材本体之间。例如该锌层可以为对该中框基材本体进行活化处理,并进行浸锌处理获得的。
结合第四方面及其上述实现方式,在第四方面的另一种实现方式中,该中框件还包括:
过渡金属层,位于该第一金属层与该中框基材本体之间,该过渡金属层与该中框基材本体的结合能力、该过渡金属层与该第一金属层的结合能力高于该中框基材本体与该第一金属层的结合能力。
结合第四方面及其上述实现方式,在第四方面的另一种实现方式中,该过渡金属层的厚度为0.01-20微米。
结合第四方面及其上述实现方式,在第四方面的另一种实现方式中,该中框基材本体为经过喷砂处理和/或去杂质处理后的中框基材本体。
结合第四方面及其上述实现方式,在第四方面的另一种实现方式中,该绝缘钝化层为在该第一金属表面进行化学转换膜处理,或在该第一金属层表面喷涂高分子有机物涂层后得到的。
第五方面,提供了一种中框件,其特征在于,该中框件为电子产品内部用于支持该电子产品的零部件的支持构件,该中框件包括:
中框基材本体;
第二金属层,附着于该中框基材本体表面的第二区域,该第二区域用于与该电子产品的天线金属弹片相连接,该第二金属层与该天线金属弹片的电极电位差小于该中框基材本体与该天线金属弹片的电极电位差。
因此,本发明实施例通过在镀金弹片接触的区域附着与天线金属弹片的电极电位相同或相近的第二金属层,能够防止或降低电偶腐蚀,使得中框件与镀金弹片能够很好的接触,进而避免了信号不畅通的问题,提升了用户体验。
应理解,该中框件为经过第二方面及其实现方式中的任一实现方式的方法而生成的中框件,该中框件中构成解各个构件的作用可参见第二方面及其实现方式中的相应方法特征。
结合第五方面,在第五方面的一种实现方式中,该电子产品的零部件包括印制电路板PCB、芯片、电池和屏幕中的至少一种。
应理解,本发明实施例中的零部件还可以包括该电子产品中的其他部件,例如,还可以包括天线、摄像头等部件,本发明实施例并不限于此。
结合第五方面及其上述实现方式,在第五方面的另一种实现方式中,
当该天线金属弹片的材质为金时,该第二金属层为银层或金层。例如,该第二金属层的厚度为0.01-50微米。
因此,本发明实施例通过在于镀金弹片接触的区域设置金层或银层,能够防止或降低电偶腐蚀,使得中框件与镀金弹片能够很好的接触,进而避免了信号不畅通的问题,提升了用户体验。
结合第五方面及其上述实现方式,在第五方面的另一种实现方式中,
该中框件还包括:
第三金属层,附着于该中框基材本体表面的第三区域,该第三区域连接
该电子产品的接地的导电部件,以将该中框件接地,该第三金属层的抗中性盐雾腐蚀能力高于该中框基材本体。
例如,第三区域用于接触电子产品的导电布、导电泡棉等一些导电的辅助材料,以与该电子产品的对应导电部件连接。该第三区域也可以称为接地导电区域。
结合第五方面及其上述实现方式,在第五方面的另一种实现方式中,
该第三金属层为金层或银层。例如,该第三金属层的厚度为0.01-50微米。
因此,本发明实施例中,通过在接地导电的区域设置第三金属层,增强了耐中性盐雾腐蚀能力,提升了用户体验。
应理解,第三金属层还可以为其他金属层,只要第三金属层的耐中性盐雾腐蚀性高于中框基础即可,本发明实施例并不限于此。
应注意,本发明实施例中的第二金属层和第三金属层可以为同一种金属层,并且,本发明实施例中可以同时进行电镀第二金属层和第三金属层。
第六方面,提供了一种中框件,其特征在于,该中框件为电子产品内部用于支持该电子产品的零部件的支持构件,该中框件包括:
中框基材本体;
第三金属层,附着于该中框基材本体表面的第三区域,该第三区域用于连接该电子产品的接地的导电部件,以将该中框件接地,该第三金属层的抗中性盐雾腐蚀能力高于该中框基材本体。
因此,本发明实施例中,通过在接地导电的区域设置第三金属层,增强了耐中性盐雾腐蚀能力,提升了用户体验。
例如,第三区域用于接触电子产品的导电布、导电泡棉等一些导电的辅助材料,以与该电子产品的对应导电部件连接。该第三区域也可以称为接地导电区域。
应理解,第三金属层还可以为其他金属层,只要第三金属层的耐中性盐雾腐蚀性高于中框基础即可,本发明实施例并不限于此。
应理解,该中框件为经过第三方面及其实现方式中的任一实现方式的方法而生成的中框件,该中框件中构成解各个构件的作用可参见第三方面及其实现方式中的相应方法特征,为了简洁,在此不再赘述。
结合第六方面,在第六方面的一种实现方式中,
该电子产品的零部件包括印制电路板PCB、芯片、电池和屏幕中的至少一种。
应理解,本发明实施例中的零部件还可以包括该电子产品中的其他部件,例如,还可以包括天线、摄像头等部件,本发明实施例并不限于此。
结合第六方面及其上述实现方式,在第六方面的另一种实现方式中,
该第三金属层为金层或银层;
该第三金属层的厚度为0.01-50微米。
第七方面,提供了一种电子产品,其特征在于,包括:
如第四方面至第六方面及其可能的实现方式中的任一实现方式中的中框件、零部件和外壳,该零部件容纳在该外壳内,该中框件用于支持该零部件,该中框件和该外壳组装在一起。
结合第七方面,在第七方面的一种实现方式中,
该零部件包括印制电路板PCB、芯片、电池和屏幕中的至少一种。
应理解,本发明实施例中的零部件还可以包括该电子产品中的其他部件,例如,还可以包括天线、摄像头等部件,本发明实施例并不限于此。
因此,本发明实施例通过在中框基材本体的第一区域电镀了高热导系数的第一金属,通过第一金属层增加了该中框件的热导能力,进而能够有效的将局部发热大的零部件的热量及时地传递到中框基材本体,避免局部温度过高的产生,并且有利于中框基材本体尽快的将电子设备的零部件产生的热量导出,从而提升了该中框件的散热性能。
为了更清楚地说明本发明实施例的技术方案,下面将对本发明实施例中所需要使用的附图作简单地介绍,显而易见地,下面所描述的附图仅仅是本发明的一些实施例,对于本领域普通技术人员来讲,在不付出创造性劳动的前提下,还可以根据这些附图获得其他的附图。
图1是根据本发明一个实施例的生产中框件的方法示意流程图。
图2是根据本发明另一实施例的生产中框件的方法示意流程图。
图3是根据本发明另一实施例的生产中框件的方法示意流程图。
图4是根据本发明另一实施例的生产中框件的方法示意流程图。
图5是根据本发明另一实施例的生产中框件的方法示意流程图。
图6是根据本发明另一实施例的生产中框件的方法示意流程图。
图7是根据本发明另一实施例的生产中框件的方法示意流程图。
图8是根据本发明另一实施例的生产中框件的方法示意流程图。
图9是根据本发明另一实施例的生产中框件的方法示意流程图。
图10是根据本发明另一实施例的生产中框件的方法示意流程图。
图11是根据本发明一个实施例的中框件的示意框图。
图12是根据本发明另一实施例的中框件的示意框图。
图13是根据本发明另一实施例的中框件的示意框图。
图14是根据本发明一个实施例的电子产品的示意框图。
图15是根据本发明一个实施例的电子产品的示意框图。
下面将结合本发明实施例中的附图,对本发明实施例中的技术方案进行清楚、完整地描述,显然,所描述的实施例是本发明的一部分实施例,而不是全部实施例。基于本发明中的实施例,本领域普通技术人员在没有做出创造性劳动的前提下所获得的所有其他实施例,都应属于本发明保护的范围。
应理解,本发明实施例中的中框件为电子产品内部用于支持该电子产品的零部件,换句话说,该中框件可以用于固定、放置、容纳或支持电子产品的零部件,例如,该中框件可以为用于电子产品中放置PCB板、芯片或电池的支持构件,或者该中框件为用于支持电子产品屏幕的支持构件;该电子产品也可以称为电子设备或终端,可以包括但不限于移动电话、移动电脑、平板电脑(portable android device,Pad)、个人数字助理(Personal Digital Assistant,PDA)、媒体播放器、智能电视、智能手表、智能眼镜、智能手环、电子书、移动台等,该中框件可以为手机中框或前壳、手机屏支撑板、Pad或电脑前壳或屏支撑板等,本发明实施例并不限于此。
应理解,本发明实例中,并不对中框件的具体形状做限定,中框件的形状可以根据实际的使用情况来确定,例如,中框件中可以包括至少一个凸起或凹陷部分,或包括至少一个孔洞等,并且,本发明实施例中也不对位于中框基材本体表面上的金属层的具体形状做限定,金属层的具体形状可以根据实际的使用情况来确定。
图1是根据本发明一个实施例的生产中框件的方法示意框图。该中框件
为用于支持该电子产品的零部件的支持构件,该中框件包括中框基材本体和位于该中框基材本体表面上的至少一层金属电镀层,如图1所示的方法100包括:
110,在该中框基材本体中的第一区域电镀第一金属层,该第一金属层的导热系数大于该中框基材本体的导热系数,该第一区域包括该中框基材本体的全部或部分外表面,该第一金属层用于将与该第一金属层接触或相邻的至少一个该零部件产生的热量传导至该中框基材本体;
120,对该第一金属层进行钝化处理,使得该第一金属层表面形成用于抗腐蚀的绝缘钝化层。
因此,本发明实施例通过在中框基材本体的第一区域电镀了高热导系数的第一金属,通过第一金属层增加了该中框件的热导能力,进而能够有效的将局部发热大的零部件的热量及时地传递到中框基材本体,避免局部温度过高的产生,并且有利于中框基材本体尽快的将电子设备的零部件产生的热量导出,从而提升了该中框件的散热性能。
应理解,本发明实例中的第一区域可以中框基材本体的全部也可以是部分外表面,例如,当第一区域是中框基材本体的全部时,后续的还需要在接地导电区域和接触金属弹片的区域进行刻蚀,以露出基材本体或第一金属,以便于进行后续的处理。其中,第一区域可以不包括上述接地导电区域和接触金属弹片的区域。而是在其他区域电镀第一金属层,增强中框件的导热性能。再有,第一区域也可以仅包括电子产品发热比较大的部分对应的区域,例如,可以只包括摄像头区域、CPU区域等发热量相对比较大的区域,在该区域电镀第一金属层,提升中框件的导热性能。再有,第一区域也可以仅包括下文中提到的第二区域和/或第三区域,也就是说在第二区域和第三区域电镀第二金属层和第三金属层之前可以先电镀第一金属层,本发明实施例并不限于此。
应理解,第一金属层将热量传导致中框基材本体时,可以理解为第一金属层将该局部高温热量传导至整个第一金属层及中框基材本体,其中热量传导至整个第一金属层为横向传播,传导至中框基材本体为纵向传播,热量的横向传播和纵向传播同时进行,也就是说,第一金属层用于横向和纵向传播热量,换句话说,该第一金属层用于将与该第一金属层接触或相邻的至少一个该零部件产生的热量传导至整个该第一金属层及该中框基材本体。
可选地,作为另一实施例,该电子产品的零部件包括印制电路板PCB、芯片、电池和屏幕中的至少一种。
应理解,本发明实施例中的零部件还可以包括该电子产品中的其他部件,例如,还可以包括天线、摄像头等部件,本发明实施例并不限于此。
可选地,作为另一实施例,该第一金属层包括下面的任意一种或各种组合:铜层、银层以及金层。
例如,该第一金属层的厚度为0.01-50微米。例如,可以为5微米、10微米、15微米、20微米等,本发明实施例并不限于此。
因此,本发明实施例通过表面处理镀一层高导热系数的铜(Cu)、银(Ag)、金(Au)的方式增加压铸合金本体的总体导热能力。其中铜的导热系数Cu 401W/m.k、Ag 429W/m.k;Au 317W/m.k,都远远高于当前现有的电子产品中的中框基材的导热系数,具有更好的散热效果。
可选地,作为另一实施例,该中框基材包括下面的任意一种或各种组合:压铸铝合金、压铸镁合金、压铸锌合金、以及不锈钢。
例如,中框基材可以为ADC12压铸铝合金、AZ91D压铸镁合金、ZA3压铸锌合金、铝锌压铸合金、压铸铝镁合金或冲压不锈钢等,本发明实施例并不限于此。
应理解,在120中,本发明实施例只要能够形成绝缘钝化层即可,本发明实施例并不对具体的处理做限定。例如,在120中,可以在该第一金属表面进行化学转换膜处理,或在该第一金属层表面喷涂高分子有机物涂层。本发明实施例并不限于此。
可选地,作为另一实施例,该第一区域包括该中框基材本体中需要导电的区域,该方法还包括:
在该第一区域的需要导电的区域进行去钝化处理,以露出该中框基材本体或该第一金属层。
去钝化处理后从而去掉绝缘层,露出中框基材本体或第一金属层,进而能够与电子产品中的其他部件导电。
应理解,本发明实施例中的可以采用激光刻蚀的方式进行去钝化处理,也可以采用其他的方式进行去钝化处理,例如采用机械方法等,本发明实施例并不对此做限定。
进一步地,作为另一实施例,该需要导电的区域包括第二区域和/或第三
区域,该第二区域用于与该电子产品的天线金属弹片电连接,该第三区域用于连接该电子产品的接地的导电部件,以将该中框件接地。
例如,第三区域用于接触电子产品的导电布、导电泡棉等一些导电的辅助材料,以与该电子产品的对应导电部件连接。该第三区域也可以称为接地导电区域。
进一步地,作为另一实施例,该方法还包括:在该中框基材本体中的第二区域电镀第二金属层,该第二金属与该天线金属弹片的电极电位差小于该中框基材本体与该天线金属弹片的电极电位差。
应理解,由于不同金属的电极电位不同,接触的两个不同金属间会存在电偶腐蚀,并且,两个金属的电极电位差越大,电偶腐蚀越严重。本发明实施例中选取的第二金属满足第二金属与天线金属弹片的电极电位差小于该中框基材本体与该天线金属弹片的电极电位差,因此,第二金属层与天线金属弹片接触间的电偶腐蚀小于中框基材本体与天线金属弹片间的电偶腐蚀,并且,当第二金属层的材料与天线金属弹片的材料相同时,即第二金属层与天线金属弹片的电极电位差为零时,能够避免电偶腐蚀。
因此,本发明实施例通过在镀金弹片接触的区域电镀与天线金属弹片的电极电位相同或相近的第二金属层,能够防止或降低电偶腐蚀,使得中框件与镀金弹片能够很好的接触,进而避免了信号不畅通的问题,提升了用户体验。
进一步地,作为另一实施例,当该天线金属弹片的材质为金时,该第二金属层为银层或金层;例如,该第二金属层的厚度为0.01-50微米。
需要说明的是,现有常用中框材料如压铸铝合金、压铸镁合金、压铸锌合金、与天线镀金弹片相接触的技术要求,以保证手机等电子产品的信号的畅通,而当前存在着压铸中框件如铝合金、镁合金、锌合金和镀金弹片的金元素之间的电极电位差,从而导致存在电偶腐蚀,腐蚀的结果导致镀金弹片不能与手机等电子产品的中框良好接触从而产生信号不通畅的问题,影响消费者使用。
而本发明实施例通过在于镀金弹片接触的区域镀金或镀银,能够防止或降低电偶腐蚀,使得中框件与镀金弹片能够很好的接触,进而避免了信号不畅通的问题,提升了用户体验。
应理解,本发明实施例中在第二区域镀第二金属层至少包括两种情形,
情形一,第一区域包括第二区域时,先进行去钝化处理后,再进行镀第二金属层。情形二,第一区域不包括第二区域,由于第二区域中没有镀第一金属层,所以,此种情形下,直接在第二区域电镀第二金属层。
可选地,作为另一实施例,该方法还包括:
在该中框基材本体中的第三区域电镀第三金属层,该第三金属层的抗中性盐雾腐蚀能力高于该中框基材本体。
进一步地,作为另一实施例,该第三金属层为金层或银层;例如,该第三金属层的厚度为0.01-50微米。
需要说明的是,现有中框材料尤其是压铸铝合金或压铸镁合金,存在着抗腐蚀性能不足的情况,特别当手机中框有局部区域通过激光蚀刻等手段需要露出基材原始表面进行接地导电时,存在不耐中性盐雾腐蚀风险。
而本发明实施例中,通过在接地导电的区域镀第三金属层,增强了耐中性盐雾腐蚀能力,提升了用户体验。
应理解,第三金属层还可以为其他金属层,只要第三金属层的耐中性盐雾腐蚀性高于中框基础即可,本发明实施例并不限于此。
应注意,本发明实施例中的第二金属层和第三金属层可以为同一种金属层,并且,本发明实施例中可以同时进行电镀第二金属层和第三金属层。
当第一区域包括第二区域和第三区域时,本发明实施例可以在第一区域中的对应于第二区域和第三区域的位置先进行去钝化处理,露出基材本体或第一金属层,然后,再进行电镀第二金属层和第三金属层。其中,第二区域和第三区域可以为不同的区域,并且第二区域和第三区域没有重合。
可选的,作为另一实施例,在该中框基材为压铸镁合金的情况下,该在该中框基材本体中的第一区域电镀第一金属层之前,该方法还包括:
对该中框基材本体进行活化处理,并进行浸锌处理,
相应地,在110中,在浸锌处理后的该第一区域电镀第一金属层。
具体而言,由于压铸镁合金非常活泼,为了仿真中框基材的腐蚀,本发明实施例中,首先对中框件进行在氟化物溶液中活化处理,然后再进行浸锌操作,其中,锌层的厚度可以为3微米、5微米或10微米等,本发明实施例并不对此做限定。在浸锌后,本发明实施例再进行上述的电镀第一金属层。
可选地,作为另一实施例,在110之前,该方法还可以包括:
在该第一区域镀过渡金属层,该过渡金属层与该中框基材本体的结合能
力、该过渡金属层与该第一金属层的结合能力均高于该中框基材本体与该第一金属层的结合能力,
相应地,在110中,在镀有该过渡金属层的第一区域进行电镀第一金属层。
进一步地,作为另一实施例,该过渡金属层的厚度为0.01-20微米。
具体而言,在电镀第一金属层之前,本发明实施例方法可以先镀一层过渡金属层,过渡金属层能够起到过渡的作用,使得后续能够更容易的电镀第一金属层。
应理解,只要该过渡金属层与该中框基材本体的结合能力、该过渡金属层与该第一金属层的结合能力均高于该中框基材本体与该第一金属层的结合能力,即可,本发明实施例并不对过渡金属层的材质做限定,例如可以为镍等,本发明实施例并不限于此。
进一步地,作为另一实施例,在110之前,该方法还包括:
对该中框基材本体进行喷砂处理和/或去杂质处理,获得喷砂处理和/或去杂质处理后的该中框基材本体,
相应地,该在该第一区域镀过渡金属层,包括:
在经过喷砂处理和/或去杂质处理后的该中框基材本体中的第一区域镀过渡金属层。
具体而言,在获取到中框件本体之前,本发明实施例可以先进行喷砂处理和/或去杂质处理,然后再进行镀过渡金属层,然后再电镀第一金属层等处理。
例如,本发明实施例中,可以对中框基材本体进行轻微喷砂处理,以去除表面的脏污如脱膜剂等物质和增强表面致密度到达到后续增强基材与膜层结合力的目的;
然后,对中框进行除油处理和碱蚀处理及酸蚀处理,以去除中框件上的表面氧化物和其它表面杂质,以露出新鲜的基材表面,方便后续镀金属层。
需要说明的是,现有技术中,例如用ADC12压铸铝合金,压铸铝合金上面覆盖一层化学转换膜,同时用激光刻蚀区别区域以导电接地或与镀金弹片相接触。然而,现有技术中但经激光蚀刻裸露出相关基材区域后,存在不耐中性盐雾腐蚀的问题,可能会导致接地不良的风险。ADC12铝合金与镀金弹片直接接触,或者镀金弹片直接做在ADC12铝合金上,电偶腐蚀严重。
针对上述问题,本发明实施例也可以先覆盖一层化学转换膜,然后,在导电接地和/或与镀金弹片相接触的区域进行刻蚀,然后镀金属以降低电偶腐和/或中性盐雾腐蚀。下面将结合图2和图3进行详细描述。
图2是根据本发明另一实施例的生产中框件的方法示意框图。该中框件为用于电子产品内部用于支持该电子产品的零部件的支持构件,该中框件包括中框基材本体和位于该中框基材本体表面上的至少一层金属电镀层,如图2所示的方法200可以包括:
210,在该中框基材本体中的第二区域电镀第二金属层,该第二区域用于与该电子产品的天线金属弹片相连接,该第二金属与该天线金属弹片的电极电位差小于该中框基材本体与该天线金属弹片的电极电位差。
应理解,由于不同金属的电极电位不同,接触的两个不同金属间会存在电偶腐蚀,并且,两个金属的电极电位差越大,电偶腐蚀越严重。本发明实施例中选取的第二金属满足第二金属与天线金属弹片的电极电位差小于该中框基材本体与该天线金属弹片的电极电位差,因此,第二金属层与天线金属弹片接触间的电偶腐蚀小于中框基材本体与天线金属弹片间的电偶腐蚀,并且,当第二金属层的材料与天线金属弹片的材料相同时,即第二金属层与天线金属弹片的电极电位差为零时,能够避免电偶腐蚀。
因此,本发明实施例通过在镀金弹片接触的区域电镀与天线金属弹片的电极电位相同或相近的第二金属层,能够防止或降低电偶腐蚀,使得中框件与镀金弹片能够很好的接触,进而避免了信号不畅通的问题,提升了用户体验。
可选地,作为另一实施例,该电子产品的零部件包括印制电路板PCB、芯片、电池和屏幕中的至少一种。
应理解,本发明实施例中的零部件还可以包括该电子产品中的其他部件,例如,还可以包括天线、摄像头等部件,本发明实施例并不限于此。
可选地,作为另一实施例,该天线金属弹片的材质为金,该第二金属层为银层或金层;例如,该第二金属层的厚度为0.01-50微米。
因此,本发明实施例通过在于镀金弹片接触的区域镀金或镀银,能够防止或降低电偶腐蚀,使得中框件与镀金弹片能够很好的接触,进而避免了信号不畅通的问题,提升了用户体验。
可选地,作为另一实施例,该方法还包括:
在该中框基材本体中的第三区域电镀第三金属层,该第三区域用于连接该电子产品的接地的导电部件,以将该中框件接地,该第三金属层的抗中性盐雾腐蚀能力高于该中框基材本体。
例如,第三区域用于接触电子产品的导电布、导电泡棉等一些导电的辅助材料,以与该电子产品的对应导电部件连接。该第三区域也可以称为接地导电区域。
进一步地,作为另一实施例,该第三金属层为金层或银层;例如,该第三金属层的厚度为0.01-50微米。
因此,本发明实施例中,通过在接地导电的区域镀第三金属层,增强了耐中性盐雾腐蚀能力,提升了用户体验。
应理解,第三金属层还可以为其他金属层,只要第三金属层的耐中性盐雾腐蚀性高于中框基础即可,本发明实施例并不限于此。
应注意,本发明实施例中的第二金属层和第三金属层可以为同一种金属层,并且,本发明实施例中可以同时进行电镀第二金属层和第三金属层。
图3是根据本发明另一实施例的生产中框件的方法示意框图。该中框件为电子产品内部用于支持该电子产品的零部件的支持构件,该中框件包括中框基材本体和位于该中框基材本体表面上的至少一层金属电镀层,如图3所示的方法300可以包括:
310,在该中框基材本体中的第三区域电镀第三金属层,该第三区域用于连接该电子产品的接地的导电部件,以将该中框件接地,该第三金属的抗中性盐雾腐蚀能力高于该中框基材本体。
可选地,作为另一实施例,该电子产品的零部件包括印制电路板PCB、芯片、电池和屏幕中的至少一种。
应理解,本发明实施例中的零部件还可以包括该电子产品中的其他部件,例如,还可以包括天线、摄像头等部件,本发明实施例并不限于此。
进一步地,作为另一实施例,该第三金属层为金层或银层,例如,该第三金属层的厚度为0.01-50微米。
因此,本发明实施例中,通过在接地导电的区域镀第三金属层,增强了耐中性盐雾腐蚀能力,提升了用户体验。
例如,第三区域用于接触电子产品的导电布、导电泡棉等一些导电的辅助材料,以与该电子产品的对应导电部件连接。该第三区域也可以称为接地
导电区域。
应理解,第三金属层还可以为其他金属层,只要第三金属层的耐中性盐雾腐蚀性高于中框基础即可,本发明实施例并不限于此。
需要说明的是,在本发明实施例中,为保证铜镀层的导热性能,所镀铜镀层为纯铜及含极少量杂质元素的纯铜,铜镀层中铜的含量可以在97%及以上;为保证银或金的导电及耐电偶腐蚀性能,所镀金或银镀层为纯度可以在97%及以上;但本发明实施例并不限于此。
应注意,本发明实施例中,镀铜的工艺不做限制,可以为氰化镀铜、酸性镀铜、焦磷酸盐镀铜、无氰镀筒等;镀银的工艺不做限制,可以为氰化镀银或非氰化镀银;镀金的工艺不做限制,可以为碱性氰化物镀金、酸性和中性镀金、亚硫酸盐镀金、丙尔金镀金等。
上文中结合图1至图3详细描述了本发明实施例的生产中框件的方法,应注意,图1至图3的例子仅仅是为了帮助本领域技术人员理解本发明实施例,而非要将本发明实施例限于所例示的具体数值或具体场景。本领域技术人员根据所给出的图1至图3的例子,显然可以进行各种等价的修改或变化,例如,适当改变金属层的厚度或金属的材质等,或者适当减少一些不必要的步骤等,这样的修改或变化也落入本发明实施例的范围内。下面将结合图4至图10具体例子,详细描述本发明实施例的生产中框件的方法。应注意,图4至图10的只是举例性的描述,图4至图10的例子中的某些步骤或过程在实际应用中可以省略,应根据具体的实际情况具体而言,本发明实施例并不限于此。
图4是根据本发明另一实施例的生产中框件的方法示意框图。图4所示的中框件的基材可以为ADC12压铸铝合金手机中框,图4的方法中为先进行喷砂处理和去杂质处理,然后,整体镀镍处理(镀过渡金属层),之后,整体镀铜(镀第一金属层),然后钝化,之后局部(与金属镀金弹片接触的区域和接地导电区域)去钝化,最后,在于金属镀金弹片接触的区域(第二区域)镀金(镀第二金属层)处理。具体地,
如图4所示的方法400,包括:
401,对ADC12铝合金进行轻微喷砂处理,以去除表面的脏污如脱膜剂等物质和增强表面致密度到达到后续增强基材与膜层结合力的目的;
402:对中框进行除油处理和碱蚀处理及酸蚀处理,以去除中框件上的
表面氧化物和其它表面杂质,以露出新鲜的基材表面;
403:对中框件进行化学镀镍处理,厚度为4微米;
换句话说,这里的镍层即为上述的过渡金属层。
404:对中框件上进行电镀Cu,厚度为15微米;
405:对电镀Cu后的中框件进行化学转化钝化处理;
406:对需要与金属镀金弹片接触的部位,进行激光刻蚀,以去除钝化部位厚度,或Ni镀层;
407:对激光刻蚀区,进行镀金操作;
408:对于接地导电区域,进行激光刻蚀,以除去钝化层,露出Ni镀层,或露出基材。
需要说明的是,由于Cu的耐中性盐雾腐蚀能力低于ADC12压铸铝合金基材,因此,在408中,应露出Ni镀层或露出基材,避免裸露Cu层。
通过上述过程,就形成了在ADC12压铸铝合金手机中框上形成高导热的铜镀层,以及高导电的金镀层,经过实际检测,经过电镀后的中框件的芯片区域散热同比ADC12温度降低至少1摄氏度,而经过24小时中性盐雾实验也并出现中框腐蚀现象,在射频信号镀金弹片与金镀层接触的区域未出现任何腐蚀现象,对手机没有任何因中框腐蚀或中框与弹片接触产生的电偶腐旬产生的信号问题。
图5是根据本发明另一实施例的生产中框件的方法示意框图。图5所示的中框件的基材可以为AZ91D压铸镁合金手机中框,图5的方法中为先进行喷砂处理和去杂质处理,然后,进行整体浸锌处理,整体镀镍处理(镀过渡金属层),之后,整体镀铜(镀第一金属层),然后钝化,之后局部(与金属镀金弹片接触的区域和接地导电区域)去钝化,最后,在于金属镀金弹片接触的区域(第二区域)和接地导电的区域(第三区域)镀金(镀第二金属层和第三金属层)处理。
具体地,如图5所示的方法500,包括:
501:对AZ91D压铸镁合金进行轻微喷砂处理,以去除表面的脏污如脱膜剂等物质和增强表面致密度到达到后续增强基材与膜层结合力的目的;
502:对中框进行除油处理和碱蚀处理及酸蚀处理,以去除中框件上的表面氧化物和其它表面杂质,以露出新鲜的基材表面;
503:对中框件进行在氟化物溶液中活化处理,再进行浸锌操作,厚度5
微米;
504:对中框件进行化学镀镍处理,厚度为5微米;
505:对中框件上进行电镀Cu,厚度为20微米;
506:对电镀Cu后的中框件进行化学转化钝化处理;
507:对需要与金属镀金弹片接触的部位以及需要接地的部位,进行激光刻蚀,以去除钝化部位厚度,露出Cu镀层或Ni镀层;
508:对激光刻蚀区,进行镀金操作。
通过上述过程,就形成了在AZ91D压铸铝合金手机中框上形成高导热的铜镀层,以及高导电的金镀层,经过实际检测,经过电镀后的中框件的芯片区域散热同比AZ91D温度降低至少1摄氏度,而经过24小时中性盐雾实验也并出现中框腐蚀现象,在射频信号镀金弹片与金镀层接触的区域未出现任何腐蚀现象,对手机没有任何因中框腐蚀或中框与弹片接触产生的电偶腐旬产生的信号问题。
图6是根据本发明另一实施例的生产中框件的方法示意框图。图6所示的中框件的基材可以为ZA3压铸锌合金手机中框,图6的方法中为先进行喷砂处理和去杂质处理,然后,整体镀镍处理(镀过渡金属层),之后,整体镀铜(镀第一金属层),然后钝化,之后局部(与金属镀金弹片接触的区域和接地导电区域)去钝化,最后,在于金属镀金弹片接触的区域(第二区域)和接地导电的区域(第三区域)镀金(镀第二金属层和第三金属层)处理。
具体地,如图6所示的方法600,包括:
601:对ZA3压铸锌合金进行轻微喷砂处理,以去除表面的脏污如脱膜剂等物质和增强表面致密度到达到后续增强基材与膜层结合力的目的;
602:对中框进行除油处理和碱蚀处理及酸蚀处理,以去除中框件上的表面氧化物和其它表面杂质,以露出新鲜的基材表面;
603:对中框件进行化学镀镍处理,厚度为3微米;
604:对中框件上进行电镀Cu,厚度为20微米;
605:对电镀Cu后的中框件进行化学转化钝化处理;
606:对需要与金属镀金弹片接触的部位以及需要接地的部位,进行激光刻蚀以去除钝化部位厚度,露出Cu镀层或Ni镀层;
607:对激光刻蚀区,进行电镀金操作。
通过上述过程,就形成了在ZA3压铸锌合金手机中框上形成高导热的铜镀层,以及高导电的金镀层,经过实际检测,经过电镀后的中框件的芯片区域散热同比ZA3压铸锌合金温度降低至少1.5摄氏度,而经过24小时中性盐雾实验也并出现中框腐蚀现象,在射频信号镀金弹片与金镀层接触的区域未出现任何腐蚀现象,对手机没有任何因中框腐蚀或中框与弹片接触产生的电偶腐旬产生的信号问题。
图7是根据本发明另一实施例的生产中框件的方法示意框图。图7所示的中框件的基材可以为铝锌压铸合金手机中框,图7的方法中为先进行喷砂处理和去杂质处理,然后,整体镀镍处理(镀过渡金属层),之后,整体镀铜(镀第一金属层),然后钝化处理,之后局部(与金属镀金弹片接触的区域和接地导电区域)去钝化,最后,在于金属镀金弹片接触的区域(第二区域)和接地导电的区域(第三区域)镀银(镀第二金属层和第三金属层)处理。
具体地,如图7所示的方法700,包括:
701:对铝锌压铸合金手机中框进行微喷砂处理,以去除表面的脏污如脱膜剂等物质和增强表面致密度到达到后续增强基材与膜层结合力的目的;
702:对中框进行除油处理和碱蚀处理及酸蚀处理,以去除中框件上的表面氧化物和其它表面杂质,以露出新鲜的基材表面;
703:对中框件进行化学镀镍处理,厚度为2微米;
704:对中框件上进行电镀Cu,厚度为30微米;
705:对电镀Cu后的中框件进行化学转化钝化处理;
706:对需要与金属镀金弹片接触的部位以及需要接地的部位,进行激光刻蚀以去除钝化部位厚度,露出Cu镀层或Ni镀层;
707:对激光刻蚀区,进行镀银操作。
通过上述过程,就形成了在压铸铝锌合金手机中框上形成高导热的铜镀层,以及高导电的金镀层,经过实际检测,经过电镀后的中框件的芯片区域散热同比铝锌合金温度降低至少1.5摄氏度,而经过24小时中性盐雾实验也并出现中框腐蚀现象,在射频信号镀金弹片与金镀层接触的区域未出现任何腐蚀现象,对手机没有任何因中框腐蚀或中框与弹片接触产生的电偶腐蚀产生的信号问题。
图8是根据本发明另一实施例的生产中框件的方法示意框图。图8所示
的中框件的基材可以为ADC12压铸铝合金手机中框,图8的方法中为先进行喷砂处理和去杂质处理,然后,整体镀镍处理(镀过渡金属层),之后,整体镀银(镀第一金属层),然后钝化处理,之后局部(与金属镀金弹片接触的区域和接地导电区域)去钝化处理。
具体地,如图8所示的方法800,包括:
801:对ADC12铝合金进行轻微喷砂处理,以去除表面的脏污如脱膜剂等物质和增强表面致密度到达到后续增强基材与膜层结合力的目的;
802:对中框进行除油处理和碱蚀处理及酸蚀处理,以去除中框件上的表面氧化物和其它表面杂质,以露出新鲜的基材表面;
803:对中框件进行化学镀镍处理,厚度为3微米;
804:对中框件上进行电镀Ag,厚度为10微米;
805:对电镀Ag后的中框件进行化学转化钝化处理;
806:对需要与金属镀金弹片接触的部位,进行激光刻蚀以去除钝化部位厚度以露出银镀层,对需要导电接地的部分也进行激光刻蚀,以露出银镀层或基材;
通过上述过程,就形成了在ADC12压铸铝合金手机中框上形成高导热高导热的银镀层,经过实际检测,经过电镀后的中框件的芯片区域散热同比ADC12温度降低至少1.2摄氏度,而经过24小时中性盐雾实验也并出现中框腐蚀现象,在射频信号镀金弹片与银镀层接触的区域未出现任何腐蚀现象,对手机没有任何因中框腐蚀或中框与弹片接触产生的电偶腐旬产生的信号问题。
图9是根据本发明另一实施例的生产中框件的方法示意框图。图9所示的中框件的基材可以为压铸铝镁合金手机中框,图9的方法中为先进行喷砂处理和去杂质处理,然后,整体化学转换膜处理,之后局部(对应发热量较大的区域,与金属镀金弹片接触的区域和接地导电区域)激光刻蚀,然后,在该局部区域镀镍处理(镀过渡金属层),然后镀铜处理(镀第一金属层),最后,在该区域镀金处理(镀第二金属层和第三金属层)。
具体地,如图9所示的方法900,包括:
901:对铝镁合中框金进行轻微喷砂处理,以去除表面的脏污如脱膜剂等物质和增强表面致密度到达到后续增强基材与膜层结合力的目的;
902:对中框进行除油处理和碱蚀处理及酸蚀处理,以去除中框件上的
表面氧化物和其它表面杂质,以露出新鲜的基材表面;
903:对中框件进行化学转化膜处理;
904:对需要与金属弹片接触的部位,及散热芯片及摄像头散热区域,进行激光刻蚀处理以露出基材;
905:对中框件刻蚀区域进行化学镀镍处理,厚度为3微米;
906:对中框件上刻蚀区域进行电镀Cu,厚度为20微米;
907:对刻蚀区域电镀Cu后的中框件在同一区域进行镀金处理,金层厚度为5微米;
通过上述过程,就形成了在压铸铝镁合金手机中框的局部区域上形成高导热的铜镀层,以及高导电的金镀层,经过实际检测,经过电镀后的中框件的芯片区域散热同比压铸铝镁合金手机中框温度降低至少1摄氏度,而经过8小时中性盐雾实验也并出现中框腐蚀现象,在射频信号镀金弹片与金镀层接触的区域未出现任何腐蚀现象,对手机没有任何因中框腐蚀或中框与弹片接触产生的电偶腐旬产生的信号问题。
图10是根据本发明另一实施例的生产中框件的方法示意框图。图10所示的中框件的基材可以为冲压不锈钢手机中框,图10的方法中为先进行喷砂处理和去杂质处理,然后,整体镀镍处理(镀过渡金属层),之后,整体镀铜(镀第一金属层),然后钝化,之后局部(与金属镀金弹片接触的区域和接地导电区域)去钝化,最后,在于金属镀金弹片接触的区域(第二区域)镀金(镀第二金属层)处理
具体地,如图10所示的方法1000,包括:
1001:对不锈钢进行去除表面的脏污如脱膜剂等物质和增强表面致密度到达到后续增强基材与膜层结合力的目的;
1002:对中框进行除油处理和碱蚀处理及酸蚀处理,以去除中框件上的表面氧化物和其它表面杂质,以露出新鲜的基材表面;
1003:对中框件进行化学镀镍处理,厚度为3微米;
1004:对中框件上进行电镀Cu,厚度为15微米;
1005:对电镀Cu后的中框件进行化学转化钝化处理;
1006:对需要与金属镀金弹片接触的部位,进行激光刻蚀,以去除钝化部位厚度,露出Cu镀层或Ni镀层;
1007:对激光刻蚀区,进行镀金操作;
1008:对于接地导电区域,进行激光刻蚀,以除去钝化厚度或直接露出基材;
通过上述过程,就形成了在不锈钢手机中框上形成高导热的铜镀层,以及高导电的金镀层,经过实际检测,经过电镀后的中框件的芯片区域散热同比不锈钢温度降低至少1.8摄氏度,而经过24小时中性盐雾实验也并出现中框腐蚀现象,在射频信号镀金弹片与金镀层接触的区域未出现任何腐蚀现象,对手机没有任何因中框腐蚀或中框与弹片接触产生的电偶腐旬产生的信号问题。
应注意,图1至图10的例子仅仅是为了帮助本领域技术人员理解本发明实施例,而非要将本发明实施例限于所例示的具体数值或具体场景。本领域技术人员根据所给出的图1至图10的例子,显然可以进行各种等价的修改或变化,例如,适当改变金属层的厚度或金属的材质等,或者适当减少一些不必要的步骤等,这样的修改或变化也落入本发明实施例的范围内。
例如,本发明实施例中可以不需要进行去污去杂质处理,本发明实施例中也可以不需镀过渡层(镀镍),本发明实施例中也还可以仅在与镀金弹片接触的区域镀金或银,也可以即在镀金弹片接触的区域镀金或银,同时也在接地导电的区域镀金或银等,再有,本发明实施例中,可以仅在部分区域电镀铜,例如,可以在除需与镀金弹片和接地导电的区域外的区域镀铜,这样,在后续处理时,无需进程激光刻蚀,而是直接在与镀金弹片和接地导电的区域镀金或银。也可以在中框件整体电镀铜或银,然后在需要与与镀金弹片和接地导电的区域外的区域进行激光刻蚀去钝化层,然后进行后续处理等,等以上变形均应落入本发明实施例的范围内。
上文中结合图1至图10详细描述了本发明实施例的生产中框件的方法,下面将结合图11至图13详细描述本发明实施例的中框件。
图11是根据本发明一个实施例的中框件的示意框图。图11所示的中框件1100为为电子产品内部用于支持该电子产品的零部件的支持构件,应注意,图11所示的中框件1100与图1方法相对应,可以为通过图1的方法生产而获得,图11的中框件1100的各个部件及功能可参见上述方法中的描述,为避免重复,此处不再赘述。
应理解,图11只是示意性的,图11中的中框件的大小和形状仅是示意性的,中框件的具体形状根据实际使用来确定,本发明实施例并不对此做限
定。再有,在图11中示出的第一区域为中框基材本体的外表面中除导电区域以外的区域,但本发明实施例并不限于此,例如,第一区域可以为中框基材本体外表面的全部或部分外表面,例如可以仅为发热量比较大的区域、或者第一区域可以包括导电区域等。为了简洁,本发明实施例不再画图表示。
换句话说,根据本发明的实施例的上下文,该中框件的结构和形状可以进行相应的变形,例如,该中框件还可以包括第二金属层,或者还可以包括第三金属层等,还可以包括过渡金属层等,这样的修改也落入本发明实施例的范围内。为了简洁,本发明实施例不再画图表示。
具体地,图11所示的中框件1100包括:中框基材本体1110、第一金属层1120和绝缘钝化层1130。
其中,第一金属层1120附着于该中框基材本体1110的第一区域,该第一金属层的导热系数大于该中框基材本体的导热系数,该第一区域包括该中框基材本体的全部或部分外表面,该第一金属层用于将与该第一金属层接触或相邻的至少一个该零部件产生的热量传导至该中框基材本体;
绝缘钝化层1130附着于该第一金属层的表面,能够抗腐蚀和绝缘。
因此,本发明实施例通过在中框基材本体的第一区域附着了高热导系数的第一金属,通过第一金属层增加了该中框件的热导能力,进而能够有效的将局部发热大的零部件的热量及时地传递到中框基材本体,避免局部温度过高的产生,并且有利于中框基材本体尽快的将电子设备的零部件产生的热量导出,从而提升了该中框件的散热性能。
应理解,第一金属层将热量传导致中框基材本体时,可以理解为第一金属层将该局部高温热量传导至整个第一金属层及中框基材本体,其中热量传导至整个第一金属层为横向传播,传导至中框基材本体为纵向传播,热量的横向传播和纵向传播同时进行,也就是说,第一金属层用于横向和纵向传播热量,换句话说,该第一金属层用于将与该第一金属层接触或相邻的至少一个该零部件产生的热量传导至整个该第一金属层及该中框基材本体。
可选地,作为另一实施例,该电子产品的零部件包括印制电路板PCB、芯片、电池和屏幕中的至少一种。
应理解,本发明实施例中的零部件还可以包括该电子产品中的其他部件,例如,还可以包括天线、摄像头等部件,本发明实施例并不限于此。
可选地,作为另一实施例,该绝缘钝化层为在该第一金属表面进行化学
转换膜处理,或在该第一金属层表面喷涂高分子有机物涂层后得到的。
应理解,本发明实施例还可以通过其他形式获得该绝缘钝化层。本发明实施例并不限于此。
可选地,作为另一实施例,该第一金属层包括下面的任意一种或各种组合:铜层、银层以及金层。该第一金属层的厚度可以为0.01-50微米。
因此,本发明实施例通过表面处理镀一层高导热系数的铜(Cu)、银(Ag)、金(Au)的方式增加压铸合金本体的总体导热能力。其中铜的导热系数Cu 401W/m.k、Ag 429W/m.k;Au 317W/m.k,都远远高于当前现有的电子产品中的中框基材的导热系数,具有更好的散热效果。
可选地,作为另一实施例,该第一区域包括该中框基材本体的外表面中除需要导电的区域之外的全部或部分外表面,该中框基材本体的外表面中需要导电的区域附着有该第一金属层。
换句话说,该第一金属层具体附着于该第一区域和该需要导电的区域,该绝缘钝化层仅附着于与该第一区域对应的第一金属层的表面。
可选地,作为另一实施例,该需要导电的区域包括第二区域和/或第三区域,该第二区域用于与该电子产品的天线金属弹片相连接,该第三区域用于连接该电子产品的接地的导电部件,以将该中框件接地。
例如,第三区域用于接触电子产品的导电布、导电泡棉等一些导电的辅助材料,以与该电子产品的对应导电部件连接。该第三区域也可以称为接地导电区域。
去钝化处理后从而去掉绝缘层,露出中框基材本体或第一金属层,进而能够与电子产品中的其他部件导电。
应理解,本发明实施例中的可以采用激光刻蚀的方式进行去钝化处理,也可以采用其他的方式进行去钝化处理,例如采用机械方法等,本发明实施例并不对此做限定。
可选地,作为另一实施例,该中框件还包括:
第二金属层,附着于该中框基材本体表面的第二区域,该第二金属层与该天线金属弹片的电极电位差小于该中框基材本体与该天线金属弹片的电极电位差。
应理解,由于不同金属的电极电位不同,接触的两个不同金属间会存在电偶腐蚀,并且,两个金属的电极电位差越大,电偶腐蚀越严重。本发明实
施例中选取的第二金属满足第二金属与天线金属弹片的电极电位差小于该中框基材本体与该天线金属弹片的电极电位差,因此,第二金属层与天线金属弹片接触间的电偶腐蚀小于中框基材本体与天线金属弹片间的电偶腐蚀,并且,当第二金属层的材料与天线金属弹片的材料相同时,即第二金属层与天线金属弹片的电极电位差为零时,能够避免电偶腐蚀。
因此,本发明实施例通过在镀金弹片接触的区域附着与天线金属弹片的电极电位相同或相近的第二金属层,能够防止或降低电偶腐蚀,使得中框件与镀金弹片能够很好的接触,进而避免了信号不畅通的问题,提升了用户体验。
进一步地,作为另一实施例,当该天线金属弹片的材质为金时,该第二金属层为银层或金层;例如,该第二金属层的厚度为0.01-50微米。
需要说明的是,现有常用中框材料如压铸铝合金、压铸镁合金、压铸锌合金、与天线镀金弹片相接触的技术要求,以保证手机等电子产品的信号的畅通,而当前存在着压铸中框件如铝合金、镁合金、锌合金和镀金弹片的金元素之间的电极电位差,从而导致存在电偶腐蚀,腐蚀的结果导致镀金弹片不能与手机等电子产品的中框良好接触从而产生信号不通畅的问题,影响消费者使用。
而本发明实施例通过在于镀金弹片接触的区域设置金层或银层,能够防止或降低电偶腐蚀,使得中框件与镀金弹片能够很好的接触,进而避免了信号不畅通的问题,提升了用户体验。
应理解,本发明实施例中在第二区域可以通过例如以下方式获得,例如设置第二金属层至少可以通过以下两种情形,情形一,第一区域包括第二区域时,先进行去钝化处理后,再进行镀第二金属层。情形二,第一区域不包括第二区域,由于第二区域中没有镀第一金属层,所以,此种情形下,直接在第二区域电镀第二金属层。
可选地,做为另一实施例,该中框件还可以包括:
第三金属层,附着于该中框基材本体表面的第三区域,该第三金属层的抗中性盐雾腐蚀能力高于该中框基材本体。
进一步地,作为另一实施例,该第三金属层为金层或银层;
该第三金属层的厚度为0.01-50微米。
需要说明的是,现有中框材料尤其是压铸铝合金或压铸镁合金,存在着
抗腐蚀性能不足的情况,特别当手机中框有局部区域通过激光蚀刻等手段需要露出基材原始表面进行接地导电时,存在不耐中性盐雾腐蚀风险。
在发明实施例中,通过在接地导电的区域镀第三金属层,增强了耐中性盐雾腐蚀能力,提升了用户体验。
应理解,第三金属层还可以为其他金属层,只要第三金属层的耐中性盐雾腐蚀性高于中框基础即可,本发明实施例并不限于此。
应注意,本发明实施例中的第二金属层和第三金属层可以为同一种金属层,并且,本发明实施例中可以同时进行电镀第二金属层和第三金属层。
当第一区域包括第二区域和第三区域时,本发明实施例可以在第一区域中的对应于第二区域和第三区域的位置先进行去钝化处理,露出基材本体或第一金属层,然后,再进行电镀第二金属层和第三金属层。其中,第二区域和第三区域可以为不同的区域,并且第二区域和第三区域没有重合。
可选地,作为另一实施例,该中框基材包括下面的任意一种或各种组合:压铸铝合金、压铸镁合金、压铸锌合金、以及不锈钢。
例如,中框基材可以为ADC12压铸铝合金、AZ91D压铸镁合金、ZA3压铸锌合金、铝锌压铸合金、压铸铝镁合金或冲压不锈钢等,本发明实施例并不限于此。
可选的,作为另一实施例,在该中框基材为压铸镁合金时,该中框件还包括:
锌层,位于该第一金属层和该中框基材本体之间,为对该中框基材本体进行活化处理,并进行浸锌处理获得的。
具体而言,由于压铸镁合金非常活泼,为了仿真中框基材的腐蚀,本发明实施例中,首先对中框件进行在氟化物溶液中活化处理,然后再进行浸锌操作,其中,锌层的厚度可以为3微米、5微米或10微米等,本发明实施例并不对此做限定。在浸锌,本发明实施例再进行上述的电镀第一金属层。
可选地,作为另一实施例,该中框件还包括:
过渡金属层,位于该第一金属层与该中框基材本体之间,该过渡金属层与该中框基材本体的结合能力、该过渡金属层与该第一金属层的结合能力高于该中框基材本体与该第一金属层的结合能力。
进一步地,作为另一实施例,该过渡金属层的厚度为0.01-20微米。
应理解,只要该过渡金属层与该中框基材本体的结合能力、该过渡金属
层与该第一金属层的结合能力均高于该中框基材本体与该第一金属层的结合能力,即可,本发明实施例并不对过渡金属层的材质做限定,例如可以为镍等,本发明实施例并不限于此。
可选地,作为另一实施例,该中框基材本体为经过喷砂处理和/或去杂质处理后的中框基材本体。
具体而言,在生成该中框件时,在获取到中框件本体之前,本发明实施例可以先进行喷砂处理和/或去杂质处理,然后再进行镀过渡金属层,然后再电镀第一金属层等处理。
例如,在生成该中框件时,本发明实施例中,可以对中框基材本体进行轻微喷砂处理,以去除表面的脏污如脱膜剂等物质和增强表面致密度到达到后续增强基材与膜层结合力的目的;
然后,对中框进行除油处理和碱蚀处理及酸蚀处理,以去除中框件上的表面氧化物和其它表面杂质,以露出新鲜的基材表面,方便后续镀金属层。
图12是根据本发明另一实施例的中框件的示意框图。图12所示的中框件1200为用于电子产品中的支持构件,应注意,图12所示的中框件1200与图2方法相对应,可以为通过图2的方法生产而获得,图12的中框件1200的各个部件及功能可参见上述方法中的描述,为避免重复,此处不再赘述。
应理解,图12只是示意性的,图12中的中框件的大小和形状仅是示意性的,中框件的具体形状根据实际使用来确定,本发明实施例并不对此做限定,再有,根据本发明的实施例的上下文,该中框件的结构和形状可以进行相应的变形,例如,该中框件还可以包括第一金属层、第三金属层等,还可以包括过渡金属层等,这样的修改也落入本发明实施例的范围内。为避免重复,本发明实施例不再画图表示。
具体地,图12所示的中框件1200包括:基材本体1210和第二金属层1220。
其中,第二金属层1220附着于该中框基材本体1210表面的第二区域,该第二区域用于与该电子产品的天线金属弹片相连接,该第二金属与该天线金属弹片的电极电位差小于该中框基材本体与该天线金属弹片的电极电位差。
应理解,由于不同金属的电极电位不同,接触的两个不同金属间会存在电偶腐蚀,并且,两个金属的电极电位差越大,电偶腐蚀越严重。本发明实
施例中选取的第二金属满足第二金属与天线金属弹片的电极电位差小于该中框基材本体与该天线金属弹片的电极电位差,因此,第二金属层与天线金属弹片接触间的电偶腐蚀小于中框基材本体与天线金属弹片间的电偶腐蚀,并且,当第二金属层的材料与天线金属弹片的材料相同时,即第二金属层与天线金属弹片的电极电位差为零时,能够避免电偶腐蚀。
因此,本发明实施例通过在镀金弹片接触的区域附着与天线金属弹片的电极电位相同或相近的第二金属层,能够防止或降低电偶腐蚀,使得中框件与镀金弹片能够很好的接触,进而避免了信号不畅通的问题,提升了用户体验。
可选地,作为另一实施例,该电子产品的零部件包括印制电路板PCB、芯片、电池和屏幕中的至少一种。
应理解,本发明实施例中的零部件还可以包括该电子产品中的其他部件,例如,还可以包括天线、摄像头等部件,本发明实施例并不限于此。
可选地,作为另一实施例,当该天线金属弹片的材质为金时,该第二金属层为银层或金层;例如,该第二金属层的厚度为0.01-50微米。
因此,本发明实施例通过在于镀金弹片接触的区域设置金层或银层等,能够防止或降低电偶腐蚀,使得中框件与镀金弹片能够很好的接触,进而避免了信号不畅通的问题,提升了用户体验。
可选地,作为另一实施例,该中框件还可以包括:
第三金属层,附着于该中框基材本体表面的第三区域,该第三区域连接该电子产品的接地的导电部件,以将该中框件接地,该第三金属层的抗中性盐雾腐蚀能力高于该中框基材本体。
例如,第三区域用于接触电子产品的导电布、导电泡棉等一些导电的辅助材料,以与该电子产品的对应导电部件连接。该第三区域也可以称为接地导电区域。
可选地,作为另一实施例,该第三金属层为金层或银层;
例如,该第三金属层的厚度为0.01-50微米。
因此,本发明实施例中,通过在接地导电的区域设置第三金属层,增强了耐中性盐雾腐蚀能力,提升了用户体验。
应理解,第三金属层还可以为其他金属层,只要第三金属层的耐中性盐雾腐蚀性高于中框基础即可,本发明实施例并不限于此。
应注意,本发明实施例中的第二金属层和第三金属层可以为同一种金属层,并且,本发明实施例中可以同时进行电镀第二金属层和第三金属层。
图13是根据本发明另一实施例的中框件的示意框图。图13所示的中框件1300为用于电子产品中的支持构件,应注意,图13所示的中框件1300与图3方法相对应,可以为通过图3的方法生产而获得,图13的中框件1300的各个部件及功能可参见上述方法中的描述,为避免重复,此处不再赘述。
应理解,图13只是示意性的,图13中的中框件的大小和形状仅是示意性的,中框件的具体形状根据实际使用来确定,本发明实施例并不对此做限定,再有,根据本发明的实施例的上下文,该中框件的结构和形状可以进行相应的变形,例如,该中框件还可以包括第一金属层、第三金属层、过渡金属层等,这样的修改也落入本发明实施例的范围内。为避免重复,本发明实施例不再画图表示。
具体地,图13所示的中框件1300包括:基材本体1310和第三金属层1320。
其中,第三金属层1320附着于该中框基材本体表面的第三区域,该第三区域用于连接该电子产品的接地的导电部件,以将该中框件接地,该第三金属层的抗中性盐雾腐蚀能力高于该中框基材本体。
可选地,作为另一实施例,该电子产品的零部件包括印制电路板PCB、芯片、电池和屏幕中的至少一种。
应理解,本发明实施例中的零部件还可以包括该电子产品中的其他部件,例如,还可以包括天线、摄像头等部件,本发明实施例并不限于此。
可选地,作为另一实施例,该第三金属层为金层或银层;该第三金属层的厚度为0.01-50微米。
因此,本发明实施例中,通过在接地导电的区域设置第三金属层,增强了耐中性盐雾腐蚀能力,提升了用户体验。
例如,第三区域用于接触电子产品的导电布、导电泡棉等一些导电的辅助材料,以与该电子产品的对应导电部件连接。该第三区域也可以称为接地导电区域。
应理解,第三金属层还可以为其他金属层,只要第三金属层的耐中性盐雾腐蚀性高于中框基础即可,本发明实施例并不限于此。
图14是根据本发明另一实施例的电子产品的示意框图。图14所示的电
子产品1400包括如图11至13中所示的中框件1410、零部件1420和外壳1430,该零部件1420容纳在该外壳1430内,该中框件1410用于支持该零部件1420,该中框件1410和该外壳1430组装在一起。该外壳1430可以用于保护该中框件1410和该零部件1420。
例如,该电子产品1400可以包括但不现于手机、pad、电脑、电子书、移动台等,只要该部件中具有中框件、中框件支持的零部件和外壳即可。本发明实施例并不限于此。
应理解,该零部件1420可以包括印制电路板PCB、芯片、电池和屏幕中的至少一种。
应理解,本发明实施例中的零部件还可以包括其他部件,例如,还可以包括天线、摄像头等部件,本发明实施例并不限于此。
例如,图15为当该电子产品1400为手机时的结构框图,如图15所示的电子手机1500可以包括:屏幕,例如为触控面板(Touch Panel,TP)和液晶显示器(Liquid crystal display,LCD)即TP-LCD;中框件;电池;主板,其中主板中可以包括印制电路板PCB、芯片、摄像头等;天线支架,可以用于放置天线;外壳,例如为电池盖组件。
应理解,图15只是示意性的,图15中的各个产品部件的形状和构造只是示意性的,各个部件的具体形状和位置可以根据实际使用来改变,本发明实施例并不对此做限定。
应理解,说明书通篇中提到的“一个实施例”或“一实施例”意味着与实施例有关的特定特征、结构或特性包括在本发明的至少一个实施例中。因此,在整个说明书各处出现的“在一个实施例中”或“在一实施例中”未必一定指相同的实施例。此外,这些特定的特征、结构或特性可以任意适合的方式结合在一个或多个实施例中。应理解,在本发明的各种实施例中,上述各过程的序号的大小并不意味着执行顺序的先后,各过程的执行顺序应以其功能和内在逻辑确定,而不应对本发明实施例的实施过程构成任何限定。
本文中术语“和/或”,仅仅是一种描述关联对象的关联关系,表示可以存在三种关系,例如,A和/或B,可以表示:单独存在A,同时存在A和B,单独存在B这三种情况。另外,本文中字符“/”,一般表示前后关联对象是一种“或”的关系。
应理解,在本发明实施例中,“与A相应的B”表示B与A相关联,根
据A可以确定B。但还应理解,根据A确定B并不意味着仅仅根据A确定B,还可以根据A和/或其它信息确定B。
所属领域的技术人员可以清楚地了解到,为了描述的方便和简洁,上述描述的系统、装置和单元的具体工作过程,可以参考前述方法实施例中的对应过程,在此不再赘述。
总之,以上所述仅为本发明技术方案的较佳实施例而已,并非用于限定本发明的保护范围。凡在本发明的精神和原则之内,所作的任何修改、等同替换、改进等,均应包含在本发明的保护范围之内。
Claims (38)
- 一种中框件,其特征在于,所述中框件为电子产品内部用于支持所述电子产品的零部件的支持构件,所述中框件包括:中框基材本体;第一金属层,附着于所述中框基材本体的第一区域,所述第一金属层的导热系数大于所述中框基材本体的导热系数,所述第一区域包括所述中框基材本体的全部或部分外表面,所述第一金属层用于将与所述第一金属层接触或相邻的至少一个所述零部件产生的热量传导至所述中框基材本体;绝缘钝化层,附着于所述第一金属层的表面。
- 根据权利要求1所述的中框件,其特征在于,所述电子产品的零部件包括印制电路板PCB、芯片、电池和屏幕中的至少一种。
- 根据权利要求1或2所述的中框件,其特征在于,所述第一金属层包括下面的任意一种或各种组合:铜层、银层以及金层。
- 根据权利要求1至3中任一项所述的中框件,其特征在于,所述第一区域包括所述中框基材本体的外表面中除需要导电的区域之外的全部或部分外表面,所述中框基材本体的外表面中需要导电的区域附着有所述第一金属层。
- 根据权利要求4所述的中框件,其特征在于,所述需要导电的区域包括第二区域和/或第三区域,所述第二区域用于与所述电子产品的天线金属弹片电连接,所述第三区域用于连接所述电子产品的接地的导电部件,以将所述中框件接地。
- 根据权利要求1至5中任一项所述的中框件,其特征在于,所述中框件还包括:第二金属层,附着于所述中框基材本体表面的第二区域,所述第二金属层与所述天线金属弹片的电极电位差小于所述中框基材本体与所述天线金属弹片的电极电位差。
- 根据权利要求6所述的中框件,其特征在于,当所述天线金属弹片的材质为金时,所述第二金属层为银层或金层。
- 根据权利要求1至7中任一项所述的中框件,其特征在于,所述中 框件还包括:第三金属层,附着于所述中框基材本体表面的第三区域,所述第三金属层的抗中性盐雾腐蚀能力高于所述中框基材本体。
- 根据权利要求8所述的中框件,其特征在于,所述第三金属层为金层或银层。
- 根据权利要求1至9中任一项所述的中框件,其特征在于,所述中框基材包括下面的任意一种或各种组合:压铸铝合金、压铸镁合金、压铸锌合金以及不锈钢。
- 一种中框件,其特征在于,所述中框件为电子产品内部用于支持所述电子产品的零部件的支持构件,所述中框件包括:中框基材本体;第二金属层,附着于所述中框基材本体表面的第二区域,所述第二区域用于与所述电子产品的天线金属弹片相连接,所述第二金属层与所述天线金属弹片的电极电位差小于所述中框基材本体与所述天线金属弹片的电极电位差。
- 根据权利要求11所述的中框件,其特征在于,所述电子产品的零部件包括印制电路板PCB、芯片、电池和屏幕中的至少一种。
- 根据权利要求11或12所述的中框件,其特征在于,所述天线金属弹片的材质为金,所述第二金属层为银层或金层。
- 根据权利要求11至13中任一项所述的中框件,其特征在于,所述中框件还包括:第三金属层,附着于所述中框基材本体表面的第三区域,所述第三区域连接所述电子产品的接地的导电部件,以将所述中框件接地,所述第三金属层的抗中性盐雾腐蚀能力高于所述中框基材本体。
- 根据权利要求14所述的中框件,其特征在于,所述第三金属层为金层或银层。
- 一种中框件,其特征在于,所述中框件为电子产品内部用于支持所述电子产品的零部件的支持构件,所述中框件包括:中框基材本体;第三金属层,附着于所述中框基材本体表面的第三区域,所述第三区域 用于连接所述电子产品的接地的导电部件,以将所述中框件接地,所述第三金属层的抗中性盐雾腐蚀能力高于所述中框基材本体。
- 根据权利要求16所述的中框件,其特征在于,所述电子产品的零部件包括印制电路板PCB、芯片、电池和屏幕中的至少一种。
- 根据权利要求16或17所述的中框件,其特征在于,所述第三金属层为金层或银层。
- 一种电子产品,其特征在于,包括:如权利要求1至18中任一项所述的中框件、零部件和外壳,所述零部件容纳在所述外壳内,所述中框件用于支持所述零部件,所述中框件和所述外壳组装在一起。
- 根据权利要求19所述的电子产品,其特征在于,所述零部件包括印制电路板PCB、芯片、电池和屏幕中的至少一种。
- 一种生产中框件的方法,其特征在于,所述中框件为电子产品内部用于支持所述电子产品的零部件的支持构件,所述中框件包括中框基材本体和位于所述中框基材本体表面上的至少一层金属电镀层,所述方法包括:在所述中框基材本体中的第一区域电镀第一金属层,所述第一金属层的导热系数大于所述中框基材本体的导热系数,所述第一区域包括所述中框基材本体的全部或部分外表面,所述第一金属层用于将与所述第一金属层接触或相邻的至少一个所述零部件产生的热量传导至所述中框基材本体;对所述第一金属层进行钝化处理,使得所述第一金属层表面形成用于抗腐蚀的绝缘钝化层。
- 根据权利要求1所述的方法,其特征在于,所述电子产品的零部件包括印制电路板PCB、芯片、电池和屏幕中的至少一种。
- 根据权利要求21或22所述的方法,其特征在于,所述第一金属层包括下面的任意一种或各种组合:铜层、银层以及金层。
- 根据权利要求21至23中任一项所述的方法,其特征在于,所述第一区域包括所述中框基材本体中需要导电的区域,所述方法还包括:在所述第一区域的需要导电的区域进行去钝化处理,以露出所述中框基 材本体或所述第一金属层。
- 根据权利要求24所述的方法,其特征在于,所述需要导电的区域包括第二区域和/或第三区域,所述第二区域用于与所述电子产品的天线金属弹片电连接,所述第三区域用于连接所述电子产品的接地的导电部件,以将所述中框件接地。
- 根据权利要求21至25中任一项所述的方法,其特征在于,所述方法还包括:在所述中框基材本体中的第二区域电镀第二金属层,所述第二金属层与所述天线金属弹片的电极电位差小于所述中框基材本体与所述天线金属弹片的电极电位差。
- 根据权利要求26所述的方法,其特征在于,当所述天线金属弹片的材质为金时,所述第二金属层为银层或金层。
- 根据权利要求21至27中任一项所述的方法,其特征在于,所述方法还包括:在所述中框基材本体中的第三区域电镀第三金属层,所述第三金属层的抗中性盐雾腐蚀能力高于所述中框基材本体。
- 根据权利要求28所述的方法,其特征在于,所述第三金属层为金层或银层。
- 根据权利要求21至29中任一项所述的方法,其特征在于,所述中框基材包括下面的任意一种或各种组合:压铸铝合金、压铸镁合金、压铸锌合金以及不锈钢。
- 一种生产中框件的方法,其特征在于,所述中框件为用于电子产品内部用于支持所述电子产品的零部件的支持构件,所述中框件包括中框基材本体和位于所述中框基材本体表面上的至少一层金属电镀层,所述方法包括:在所述中框基材本体中的第二区域电镀第二金属层,所述第二区域用于与所述电子产品的天线金属弹片相连接,所述第二金属层与所述天线金属弹片的电极电位差小于所述中框基材本体与所述天线金属弹片的电极电位差。
- 根据权利要求31所述的方法,其特征在于,所述电子产品的零部件包括印制电路板PCB、芯片、电池和屏幕中的至少一种。
- 根据权利要求31或32所述的方法,其特征在于,所述天线金属弹片的材质为金,所述第二金属层为银层或金层。
- 根据权利要求31至33中任一项所述的方法,其特征在于,所述方法还包括:在所述中框基材本体中的第三区域电镀第三金属层,所述第三区域用于连接所述电子产品的接地的导电部件,以将所述中框件接地,所述第三金属层的抗中性盐雾腐蚀能力高于所述中框基材本体。
- 根据权利要求34所述的方法,其特征在于,所述第三金属层为金层或银层。
- 一种生产中框件的方法,其特征在于,所述中框件为电子产品内部用于支持所述电子产品的零部件的支持构件,所述中框件包括中框基材本体和位于所述中框基材本体表面上的至少一层金属电镀层,所述方法包括:在所述中框基材本体中的第三区域电镀第三金属层,所述第三区域用于连接所述电子产品的接地的导电部件,以将所述中框件接地,所述第三金属的抗中性盐雾腐蚀能力高于所述中框基材本体。
- 根据权利要求36所述的方法,其特征在于,所述电子产品的零部件包括印制电路板PCB、芯片、电池和屏幕中的至少一种。
- 根据权利要求36或37所述的方法,其特征在于,所述第三金属层为金层或银层;
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| CN114375130B (zh) * | 2020-10-16 | 2023-09-12 | 华为技术有限公司 | 一种中框及电子设备 |
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| CN217192489U (zh) * | 2021-09-28 | 2022-08-16 | 荣耀终端有限公司 | 电子设备的中框、中框组件及电子设备 |
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Also Published As
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| EP3352550A1 (en) | 2018-07-25 |
| US20180255664A1 (en) | 2018-09-06 |
| EP3352550A4 (en) | 2019-07-31 |
| CN106714507A (zh) | 2017-05-24 |
| EP3352550B1 (en) | 2024-11-27 |
| CN106714507B (zh) | 2019-09-13 |
| US10143110B2 (en) | 2018-11-27 |
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