WO2024245241A1 - 液冷模组、电子设备及配件 - Google Patents
液冷模组、电子设备及配件 Download PDFInfo
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- WO2024245241A1 WO2024245241A1 PCT/CN2024/095822 CN2024095822W WO2024245241A1 WO 2024245241 A1 WO2024245241 A1 WO 2024245241A1 CN 2024095822 W CN2024095822 W CN 2024095822W WO 2024245241 A1 WO2024245241 A1 WO 2024245241A1
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- WIPO (PCT)
- Prior art keywords
- liquid cooling
- cooling module
- medium
- liquid
- module according
- 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.)
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Classifications
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K5/00—Heat-transfer, heat-exchange or heat-storage materials, e.g. refrigerants; Materials for the production of heat or cold by chemical reactions other than by combustion
- C09K5/08—Materials not undergoing a change of physical state when used
- C09K5/10—Liquid materials
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- 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
-
- 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
- H05K5/00—Casings, cabinets or drawers for electric apparatus
- H05K5/02—Details
- H05K5/0217—Mechanical details of casings
- H05K5/0243—Mechanical details of casings for decorative purposes
-
- 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
- H05K7/20218—Modifications to facilitate cooling, ventilating, or heating using a liquid coolant without phase change in electronic enclosures
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- 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
- H05K7/20218—Modifications to facilitate cooling, ventilating, or heating using a liquid coolant without phase change in electronic enclosures
- H05K7/20254—Cold plates transferring heat from heat source to coolant
-
- 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
- H05K7/20218—Modifications to facilitate cooling, ventilating, or heating using a liquid coolant without phase change in electronic enclosures
- H05K7/20272—Accessories for moving fluid, for expanding fluid, for connecting fluid conduits, for distributing fluid, for removing gas or for preventing leakage, e.g. pumps, tanks or manifolds
-
- G—PHYSICS
- G06—COMPUTING OR CALCULATING; COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2200/00—Indexing scheme relating to G06F1/04 - G06F1/32
- G06F2200/20—Indexing scheme relating to G06F1/20
- G06F2200/201—Cooling arrangements using cooling fluid
Definitions
- the present application relates to the technical field of electronic equipment, and in particular to a liquid cooling module, electronic equipment and accessories.
- the liquid cooling module may include: a pump and a working substance.
- the working substance can be understood as a carrier for realizing the mutual conversion of thermal energy and mechanical energy.
- the pump can be used as a power source for the working substance, providing power for the flow of the working substance.
- the working substance can be used as a carrier for heat transfer during the flow process, so that the liquid cooling module can achieve the effect of heat dissipation.
- the working fluids with visible flow states disclosed in the related art include: water and dyes.
- the presence of dyes can make the working fluid colorable, so that the flow process of the working fluid can present a flow visualization effect.
- the colored working fluid can present a flow visualization effect in a larger liquid cooling module.
- the liquid cooling module used in electronic equipment is small in size (usually the cavity size of the liquid cooling module is usually in the microliter order), and the flow visualization effect of the working fluid disclosed in the related art in the electronic equipment is poor.
- the present application discloses a liquid cooling module, an electronic device and accessories.
- the working fluid of the liquid cooling module includes: a first medium and a second phase.
- the first medium and the second phase may have a liquid interface, and a pump may provide a flow power for the working fluid.
- the liquid interface of the working fluid moves relative to the cavity, thereby making the working fluid have a flow visualization effect.
- the first aspect of the present application discloses a liquid cooling module, comprising: a pump, a liquid cooling module and a working fluid.
- the liquid cooling module comprises: a cavity, and the visible light transmittance of at least a part of the liquid cooling module is greater than or equal to a threshold value; the working fluid is filled in the cavity, and the working fluid comprises: a first medium and a second phase. There is a liquid interface between the second phase and the first medium.
- the pump is connected to the cavity, and is used to drive the working fluid in the cavity to flow, so that the liquid interface of the working fluid moves relative to the cavity.
- the pump is connected to the cavity, and the pump can provide the working fluid in the liquid cavity with the power to flow.
- the liquid interface of the working fluid moves relative to the cavity, so that the working fluid has a flow visualization effect.
- the working fluid is arranged in the cavity of the liquid cooling module, and the visible light transmittance of at least part of the area of the liquid cooling module is greater than or equal to the threshold value; so that the visualization effect of the working fluid flow can be displayed through the area, that is, the liquid cooling module can achieve a visualization effect.
- the working fluid can be used as a medium for heat transfer, so that the liquid cooling component can achieve the function of heat dissipation.
- the working fluid also includes: a demulsifier.
- the demulsifier is used to destroy the emulsion.
- the demulsifier with the function of destroying the emulsion can promote the small droplets to aggregate with each other, so that the first medium and the second phase restore the liquid interface.
- the first medium includes: at least one of water and liquid metal.
- the first medium includes at least one of water ( H2O ) and liquid metal.
- H2O and liquid metal have better heat dissipation performance.
- H2O and liquid metal as the first medium can ensure that the working fluid can achieve better heat dissipation performance, so that the liquid cooling module can achieve good temperature control function.
- the working fluid further includes: a water-soluble dye, and the solubility of the water-soluble dye in the first medium is greater than the solubility in the second phase.
- the working fluid includes: a water-soluble dye.
- the solubility of the water-soluble dye in the first medium is greater than that in the second phase.
- the introduction of the water-soluble dye can increase the color contrast between the first medium and the second phase, so that the liquid cooling module can have a significant flow visualization effect.
- the thermal conductivity of the first medium is greater than or equal to 0.1 W/m ⁇ k.
- the thermal conductivity of the first medium is greater than or equal to 0.1 W/m ⁇ k.
- the first medium has a large thermal conductivity, and the first medium per unit length absorbs more heat when the unit temperature changes.
- the liquid cooling module can achieve better Temperature control function.
- the specific heat capacity of the first medium is greater than or equal to 1000 J/kg ⁇ ° C.
- the specific heat capacity of the first medium is greater than or equal to 1000 J/kg ⁇ °C under a 25°C environment.
- the first medium has a large specific heat capacity, and the first medium absorbs more heat per unit mass when the unit temperature changes, so the liquid cooling module can achieve better temperature control function.
- the viscosity of the first medium is less than or equal to 50 cp.
- the viscosity of the first medium is less than or equal to 50cp at 25°C.
- the first medium has a smaller viscosity, and the resistance encountered during the flow of the first medium is smaller.
- the first medium can transfer more heat per unit time, and the working medium can achieve better temperature control function.
- the mass fraction of the first medium is greater than or equal to 80%.
- the mass fraction of the first medium is greater than or equal to 80%, that is, the working fluid contains more first medium, and the first medium has better heat dissipation performance, ensuring that the working fluid can achieve better heat dissipation performance and the liquid cooling module can achieve good temperature control function.
- the second phase includes: at least one second medium.
- the second phase includes at least one second medium, and each second medium can form a liquid interface with the first medium, so that the working fluid presents a flow visualization effect.
- At least two second media are miscible.
- a liquid interface exists between any two second media.
- the present invention further includes: an organic dye, wherein the solubility of the organic dye in the second medium is greater than the solubility of the organic dye in the first medium.
- the working fluid may further include: an organic dye.
- the solubility of the organic dye in the second medium is greater than that in the first medium.
- the introduction of the organic dye can increase the color contrast between the first medium and the second phase, so that the working fluid can have a significant flow visualization effect.
- the working fluid further includes: a drag reducer; the drag reducer is used to reduce the flow resistance of the first medium.
- the working medium may include: a drag reducer.
- the drag reducer can reduce the flow resistance of the first medium, so that the working medium transfers more heat per unit time, and the liquid cooling module can achieve good temperature control function.
- the drag reducer includes: at least one of poly- ⁇ -olefin, polymethacrylate, polyacrylamide, polyethylene oxide, poly- ⁇ -octene, poly- ⁇ -decene, and cationic polyacrylamide.
- the above-mentioned drag reducer can reduce the flow resistance of the first medium, and improve the flow rate of the working fluid under the same pump performance.
- the working fluid transfers more heat per unit time, so that the liquid cooling module can achieve good temperature control function.
- the relative molecular mass of the drag reducer is greater than or equal to 2*10 5 .
- the relative molecular mass of the drag reducer can be greater than or equal to 5*10 5 .
- the drag reducer has a larger relative molecular mass, a longer molecular chain, and greater flexibility.
- the drag reducer can reduce the flow resistance generated during the flow of the first medium to a greater extent, and improve the flow rate of the working medium under the same pump performance, so that the first medium can transfer more heat per unit time, thereby improving the heat dissipation performance of the working medium, and ensuring that the liquid cooling module can achieve good temperature control function.
- the demulsifier includes at least one of sodium alkylnaphthalene sulfonate, sodium petroleum sulfonate, cyclopentaneate, polyethylene oxide propylene oxide copolymer, organic alcohol, and organic ketone.
- the demulsifier includes at least one of sodium alkylnaphthalene sulfonate, sodium petroleum sulfonate, cyclopentane salt, polyethylene oxide propylene oxide copolymer, organic alcohol, and organic ketone.
- the demulsifier can destroy the emulsion formed by the second phase and the first medium, and then restore the liquid interface between the first medium and the second phase, so that the working fluid has a stable liquid interface, and the liquid cooling module can have a stable flow visualization effect.
- the molecular structure of sodium alkylnaphthalene sulfonate includes:
- R includes: a hydrophobic group.
- the molecular structure of sodium alkylnaphthalene sulfonate includes: (SO 3 Na - ), so that sodium alkylnaphthalene sulfonate and the first The binding ability of the first medium is stronger than that of the second medium with the first medium.
- the second medium is dispersed in the first medium in the form of small droplets to form an emulsion
- the first medium preferentially binds to SO 3 Na - , resulting in a decrease in the thickness of the hydration layer on the surface of the small droplets, and the small droplets tend to aggregate with each other to restore the liquid interface with the first medium.
- the molecular structure of sodium alkylnaphthalene sulfonate includes: naphthalene ring
- the naphthalene ring has greater rigidity, which in turn ensures that the demulsifier has greater rigidity.
- the second phase is emulsified with the first medium, the second phase is dispersed in the first medium in the form of small droplets. Since the demulsifier has greater rigidity, the demulsifier can quickly reach the surface of the small droplets, so that the small droplets can break away from the constraints of the first medium and aggregate into the second phase. That is, the demulsifier has a faster demulsification efficiency, and the working fluid can quickly restore the liquid interface.
- the molecular structure of the cycloalkaneate includes:
- the medium n is 3-12.
- the molecular structure of cycloalkane salts includes: cycloalkyl
- the cycloalkyl group has greater rigidity, which makes the cycloalkane salt have greater rigidity.
- the molecular structure of the organic alcohol includes:
- the molecular structure of the organic alcohol includes: hydroxyl (-OH), and the binding ability of hydroxyl with water is stronger than the binding ability of the second medium with water, so the organic alcohol can be used as a demulsifier.
- Another molecular structure of the organic alcohol may include: The symmetrical molecular structure makes the demulsifier have greater rigidity, thereby ensuring that the demulsifier has a faster demulsification efficiency and that the emulsified working fluid can quickly restore the liquid interface.
- the molecular structure of the organic ketone includes: At least one of .
- Another molecular structure of the organic ketone may include: The symmetrical molecular structure makes the demulsifier have greater rigidity, thereby ensuring that the demulsifier has a faster demulsification efficiency and that the emulsified working fluid can quickly restore the liquid interface.
- the hydrophilic-lipophilic balance value of the demulsifier is 1-20.
- the hydrophilic-lipophilic balance value of the demulsifier is 1-20, so that the demulsifier can exist at the liquid interface between the first medium and the second phase.
- the demulsifier can stabilize the liquid interface and ensure that the liquid cooling module has a stable flow visualization effect.
- the liquid cooling module includes: a flow channel layer and at least two covering layers, one covering layer is arranged on one side of the flow channel layer, and the other covering layer is arranged on the other side of the flow channel layer, the covering layer and the flow channel layer are arranged to form a cavity, and the visible light transmittance of at least one covering layer is greater than or equal to a threshold value.
- a difference between a melting temperature of the flow channel layer and a melting temperature of the covering layer is less than or equal to 20°C.
- the difference between the melting temperature of the covering layer and the melting temperature of the flow channel layer is less than or equal to 20°C.
- the difference in melting temperature between the covering layer and the covering layer is small, which is conducive to the covering layer and the flow channel layer being sealed into a cavity of an integrated structure through hot pressing, thereby ensuring that the cavity has a better sealing effect.
- a difference between a thermal expansion coefficient of the flow channel layer and a thermal expansion coefficient of the cover layer is less than or equal to 10*10 -6 /°C.
- the difference between the thermal expansion coefficient of the flow channel layer and the thermal expansion coefficient of the covering layer is less than or equal to ⁇ 10*10 -6 /°C.
- the difference between the thermal expansion coefficient of the flow channel layer and the thermal expansion coefficient of the covering layer is small, which can reduce the warping of the flow channel layer and the covering layer during the sealing welding process to a certain extent, and ensure that the cavity formed by the covering layer and the flow channel layer has a good sealing effect.
- the thickness of the covering layer is less than or equal to 2 mm.
- the thickness of the cover layer is less than or equal to less than 2 mm, which can realize a lightweight liquid cooling module.
- the cover layer has little shielding on the working fluid, which can realize a liquid cooling module with a significant flow visualization effect.
- the transparent material includes: at least one of inorganic glass, polyethylene terephthalate, polyethylene naphthalate, polypropylene, cycloolefin copolymers, polytetramethylpentene, polyimide, polymethyl methacrylate, polyphenylene sulfide, polyetheretherketone, styrene-acrylonitrile copolymer, acrylonitrile-butadiene-styrene copolymer, and butadiene-styrene copolymer.
- At least a portion of the liquid cooling module is made of transparent material, so that the covering layer has a high visible light transmittance, ensuring that the liquid cooling module can achieve a significant flow visualization effect.
- the molecular structure of the transparent material includes:
- Medium n is between 100 and 200; The medium n is between 100-200.
- the molecular structure of the transparent material contains: ether bond (-O-), which can destroy the conjugated structure of the benzene ring in the molecular structure, so that the transparent material has a higher visible light transmittance, so that the liquid cooling module can achieve a significant flow visualization effect.
- the molecular structure of the transparent material includes:
- Medium n is 240-340; The medium n is between 200-300.
- the molecular structure of the transparent material includes: At least one of the transparent materials has a high visible light transmittance, so that the liquid cooling module can achieve a more significant flow visualization effect.
- the method further includes: an anti-evaporation layer, the anti-evaporation layer is arranged on the surface of the covering layer, the visible light transmittance of the anti-evaporation layer is greater than or equal to a threshold, and the density of the anti-evaporation layer is greater than the density of the covering layer.
- an anti-evaporation layer is provided on the surface of the cover layer.
- the density of the anti-evaporation layer is greater than that of the cover layer, and the anti-evaporation layer can reduce the evaporation loss of the working fluid, thereby ensuring the long-term reliability of the liquid cooling module.
- the visible light transmittance of the anti-evaporation layer is greater than or equal to the threshold value, thereby ensuring the flow visualization effect of the liquid cooling module.
- the second aspect of the present application discloses an electronic device, comprising: a shell and the liquid cooling module disclosed in the first aspect; the liquid cooling module is embedded in the shell, and the visible light transmittance of at least part of the shell is greater than or equal to a threshold value, and the area of the shell where the visible light transmittance is greater than or equal to the threshold value at least partially overlaps with the area of the liquid cooling module where the visible light transmittance is greater than or equal to the threshold value.
- the third aspect of the present application discloses an accessory, which is suitable for electronic equipment, comprising: an accessory body and the liquid cooling module disclosed in the first aspect, the liquid cooling module is embedded in the accessory body; the area of the accessory body where the visible light transmittance is greater than or equal to the threshold value at least partially overlaps with the area of the liquid cooling module where the visible light transmittance is greater than or equal to the threshold value.
- FIG1 is a schematic diagram of an electronic device
- Figure 2 is an exploded view of the battery
- FIG3 is a schematic diagram of a working medium disclosed in a feasible embodiment (the working medium is filled in the cavity);
- FIG4 is a schematic diagram of an emulsified working fluid (the working fluid is filled in the cavity);
- FIG5 is a schematic diagram of a working fluid hanging on the wall (the working fluid is filled in the cavity);
- FIG6 is a schematic diagram of a liquid cooling module disclosed in a feasible embodiment
- FIG7 is a curve showing the relationship between flow rate and impedance of a liquid cooling module
- FIG8 is a schematic diagram of a mobile phone disclosed in a feasible embodiment
- FIG9 is a schematic diagram of a tablet computer disclosed in a feasible embodiment
- FIG10 is a schematic diagram of a laptop computer disclosed in a feasible embodiment
- FIG11 is a schematic diagram of a vehicle-mounted device disclosed in a feasible embodiment
- FIG12 is a cross-sectional view of a flow display area disclosed in a feasible embodiment
- FIG13 is a schematic diagram of a protective shell disclosed in a feasible embodiment
- FIG14 is an assembly diagram of a wearable device and a wristband disclosed in a feasible embodiment
- FIG15 is an assembly diagram of a tablet computer and a protective case disclosed in a feasible embodiment
- FIG. 16 is an assembly diagram of a mobile phone and a connector disclosed in a feasible embodiment.
- Emulsification is the process of evenly dispersing one liquid in the form of tiny droplets throughout another immiscible liquid.
- Melting temperature The temperature at which melting occurs can also be called the melting point.
- the coefficient of thermal expansion is the expansion and contraction of an object due to temperature changes. Its ability to change is expressed as the change in length value caused by a unit temperature change under constant pressure (constant p), that is, the coefficient of thermal expansion is expressed in units of 1/degree (°C).
- Visible light can be understood as light waves with a wavelength of 380nm-760nm.
- Visible light transmittance is the ratio of the radiant energy that projects through an object to the total radiant energy that projects onto the object.
- a hydrophilic group is also called a polar group, which is an atomic group that is soluble in water or has an affinity with water.
- a hydrophobic group (lipophilic group, or oelophilic group) can also be called a non-polar group, which has no affinity for water and is insoluble in water or has extremely low solubility.
- hydrophilic lipophilic balance can be understood as the comprehensive affinity of the hydrophilic and lipophilic groups in the surfactant (additive) molecules to oil or water.
- the mass fraction of the medium can be understood as the mass ratio of the medium to the working fluid.
- the electronic devices involved in the embodiments of the present application may include, but are not limited to, electronic products such as mobile phones, tablet computers, laptop computers, and wearable devices.
- Figure 1 is a schematic diagram of an electronic device (mobile phone). It can be seen that the electronic device 1 includes: a housing 20 and an electronic functional component (not shown in the figure).
- the shell is arranged to form a cavity for accommodating the electronic functional components, and the shell surrounds the electronic functional components to protect the electronic functional components.
- the electronic device may include: a folding device or a straight device.
- a folding device or a straight device.
- the housing 20 of the electronic device may include: a first non-folding portion 21 and a second non-folding portion 22.
- the first non-folding portion 21 and the second non-folding portion 22 are connected by a folding portion 23.
- the second non-folding portion 22 can be folded toward the first non-folding portion 21 through the folding portion 23.
- the second non-folding portion 22 is unfolded with the first non-folding portion 21 through the folding portion 23.
- the electronic functional components of the electronic device 1 include, but are not limited to: a processor, an internal memory, a charging management module, a power management module, a battery, an antenna, a communication module, a camera, an audio module, a speaker, a receiver, a microphone, a sensor module, a motor, and an indicator, etc.
- the electronic device 1 may have more or fewer electronic functional components than described above.
- Various electronic functional components may be implemented in hardware, software, or a combination of hardware and software including one or more signal processing and/or application specific integrated circuits.
- the electronic functional components release heat when in operation.
- a liquid cooling module 10 is required to control the temperature rise of the electronic functional components.
- the liquid cooling module 10 is embedded in the housing 20 to achieve temperature control of the electronic functional components arranged in a defined area of the housing.
- liquid cooling module 10 is located in the shell 20 (the liquid cooling module 10 is actually invisible in the electronic device 1, and a visible schematic processing is made for ease of understanding.), and the liquid cooling module 10 embedded in the shell can realize temperature control of electronic functional components.
- the electronic devices involved in the embodiments of the present application may include, but are not limited to: mobile phones, tablet computers, laptop computers, wearable devices, vehicle-mounted devices and other electronic products.
- FIG. 1 shows that the electronic device includes: a housing 20 and an electronic functional component located in the housing 20 ( FIG. (not shown).
- the electronic device may be a foldable device or a straight device.
- the housing 20 may include a cavity for accommodating electronic functional components (not shown in the figure).
- the housing 20 of the folding mobile phone may include: a first non-folding portion 21 and a second non-folding portion 22.
- the first non-folding portion 21 and the second non-folding portion 22 are connected by a folding portion 23.
- the second non-folding portion 22 can be folded toward the first non-folding portion 21 through the folding portion 23.
- the second non-folding portion 22 is unfolded with the first non-folding portion 21 through the folding portion 23.
- the electronic functional components of the electronic device 1 include, but are not limited to: a processor, an internal memory, a charging management module, a power management module, a battery, an antenna, a communication module, a camera, an audio module, a speaker, a receiver, a microphone, a sensor module, a motor, and an indicator, etc.
- the electronic device 1 may have more or fewer electronic functional components than described above.
- Various electronic functional components may be implemented in hardware, software, or a combination of hardware and software including one or more signal processing and/or application specific integrated circuits.
- the electronic functional components release heat when in operation.
- a liquid cooling module 10 is required to control the temperature rise of the electronic functional components.
- the liquid cooling module 10 is located between the housing 20 and the electronic functional component to achieve temperature control of the electronic functional component.
- the liquid cooling module 10 is located on the side of the housing 20 adjacent to the electronic functional component.
- the liquid cooling module 10 can achieve temperature control of the electronic functional component.
- the liquid cooling module 10 can be used as a part of the electronic functional component packaging to achieve temperature control of the electronic functional component.
- the battery 30 may include a protective plate 31, a tray 32, a battery cell 33 and a liquid cooling module 10 stacked in sequence.
- the liquid cooling module 10 can achieve temperature control of the battery.
- the temperature control function of the liquid cooling module 10 is described below:
- the liquid cooling module 10 may include: a liquid cooling module 100, a pump 200 and a working medium (not shown in the figure).
- the working medium is filled in the cavity of the liquid cooling module 100.
- the pump 200 is connected to the cavity of the liquid cooling module 100.
- the pump 200 can serve as a power source for the working medium in the liquid cooling module 100 to provide power for the flow of the working medium.
- the working fluid can act as a carrier of heat transfer, taking the heat away from the electronic functional components, thereby achieving temperature control of the electronic functional components.
- the cavity of the liquid-cooling module 100 provides a flow track/place for the flow of the working fluid, so in the embodiment of the present application, the cavity of the liquid-cooling module 100 can be called a flow channel.
- the pump 200 can adopt a miniature piezoelectric liquid pump.
- the miniature piezoelectric liquid pump has an amplitude of ⁇ 50um, is ultra-thin, small in size, simple in structure, has high pressure and low flow, no electromagnetic interference, and has low working noise. It can realize precise fluid delivery and control, and is particularly suitable for electronic devices such as mobile phones, watches, and accessories.
- Some related technologies prepare the flow of the working fluid into a visual effect, which can realize a flow display area with a sense of technology.
- the flow display area can play the role of identifying the device or beautifying the shell to enhance the user's experience of using the electronic device.
- the method for realizing visualization of the working fluid flow in the liquid cooling module 10 is: a transparent liquid cooling module 100 is matched with a working fluid with flow visualization, that is, a light-transmitting treatment is performed in the area of the shell 20 where the flow visualization effect needs to be displayed, so that the visualization effect of the working fluid arranged inside the shell can be displayed, and a flow visualization area with a sense of technology is formed in the area with light-transmitting treatment.
- the working fluids with visible flow states disclosed in the related art include: water and dyes. Since the presence of the dyes can make the working fluid colorful, the flow process of the working fluid can present a flow visualization effect.
- the colored working fluid can present a flow visualization effect in a larger liquid cooling module 10.
- the liquid cooling module 10 used in electronic equipment is relatively small in size (usually the cavity size of the liquid cooling module 10 is generally in the microliter order), and the flow visualization effect of the working fluid disclosed in the related art in the electronic equipment is relatively poor.
- the first aspect of the embodiment of the present application discloses a working medium.
- the working medium 300 includes: a first medium 301 and a second phase 302. There is a liquid interface A between the first medium 301 and the second phase 302. During the movement of the working medium, the liquid interface A will move relative to the cavity B used to accommodate the working medium, so that the working medium 300 has a flow visualization effect.
- the working fluid disclosed in the embodiment of the present application includes: a first medium.
- the first medium has a better heat dissipation performance, which ensures that the working fluid can To achieve better temperature control function; on the other hand, the first medium needs to form a liquid interface with the second phase to ensure that the working fluid can achieve flow visualization function.
- the mass fraction of the first medium in the working fluid is greater than or equal to 80%.
- the mass fraction of the first medium in the working fluid may include: 85%, 90%, 95%, etc.
- the mass fraction of the first medium in the working fluid is greater than or equal to 80%, that is, the working fluid contains more first medium (the first medium has better heat dissipation performance), ensuring that the working fluid can achieve better heat dissipation performance, the working fluid absorbs more heat when changing unit temperature, and the working fluid can achieve better temperature control function.
- the embodiment of the present application does not specifically limit the type of medium included in the first medium. Any medium that has good heat dissipation performance and can form a liquid interface with the second phase can be used as the first medium in the embodiment of the present application.
- the first medium may include: water (H 2 O), liquid metal, etc.
- H 2 O and liquid metal have better heat dissipation performance.
- H 2 O and liquid metal as the first medium can enable the working medium to achieve better heat dissipation performance and ensure that the working medium can achieve better temperature control function.
- the working fluid in the embodiment of the present application may also include: water-soluble salt.
- the solution formed by the water-soluble salt and water (the first medium) may be referred to as a salt solution.
- the salt solution may include anions and cations. Both anions and cations have strong hydrophilic properties, so that anions can form hydrated anions with H 2 O, and cations can form hydrated cations with H 2 O. That is, H 2 O tends to combine with cations/anions.
- the working fluid disclosed in this implementation has a stable liquid interface, and the liquid cooling module using the working fluid can have a stable flow visualization effect.
- the embodiment of the present application does not specifically limit the color of the above-mentioned salt solution.
- the salt solution can be a colorless solution.
- the colorless solution may include: H 2 O (solvent) and colorless salt (solute).
- the colorless salt may be understood as a salt whose aqueous solution is colorless.
- Exemplary: colorless salt may include but is not limited to: sodium chloride (NaCl), magnesium chloride (MgCl 2 ), calcium chloride (CaCl 2 ) solution, aluminum nitrate (Al(NO 3 ) 4 ), etc.
- the salt solution may include: a colored solution.
- the colored solution may include: H 2 O and a colored salt.
- the colored salt may be understood as a salt that develops color in an aqueous solution.
- the colored salt may include, but is not limited to: copper sulfate (CuSO 4 ), copper chloride (CuCl 2 ), copper nitrate (Cu(NO 3 ) 2 ), ferrous sulfate (FeSO 4 ), ferrous chloride (FeCl 2 ), ferrous nitrate (Fe(NO 3 ) 2 ), ferrous sulfate (Fe 2 (SO 4 ) 3 ), ferric chloride (FeCl 3 ), ferric nitrate (Fe(NO 3 ) 3 ), potassium permanganate (KMnO 4 ), cobalt chloride (CoCl 2 ⁇ n(H 2 O)), cobalt sulfate (CoSO 4 ), cobalt nitrate (Co(NO 3 ) 2 ), nickel chloride (N
- the colored salt can change the color of the first medium. Therefore, in the embodiment of the present application, the colored salt can also be referred to as a water-soluble dye or an inorganic dye.
- the working fluid includes: a water-soluble dye.
- the solubility of the water-soluble dye in the first medium is greater than that in the second phase.
- the water-soluble dye can make the first medium colorable.
- the introduction of the water-soluble dye can make the first medium and the second phase have a large color contrast, so that the working fluid can have a significant flow visualization effect.
- the performance of the first medium is further described below:
- Heat dissipation performance can be understood as the amount of heat absorbed or released by a medium when the medium changes unit temperature. The better the heat dissipation performance of the medium, the more heat the medium absorbs or releases when the medium changes unit temperature, and the more significant the temperature control effect of the medium.
- Thermal conductivity can be understood as the amount of heat transferred when the temperature difference between the two sides of a medium (area: 1m2 , thickness: 1m) is 1°C (or K) under stable heat transfer conditions (e.g. constant pressure P, constant temperature T).
- P constant pressure
- T constant temperature
- the thermal conductivity of the first medium is greater than or equal to 0.1 W/m ⁇ K.
- the thermal conductivity of the first medium may be 0.1 W/m ⁇ K, 0.2 W/m ⁇ K, 0.3 W/m ⁇ K, etc.
- the thermal conductivity of the first medium is not a fixed value. Temperature will affect the thermal conductivity of the first medium. Specifically, an increase in temperature will intensify the molecular thermal motion of the first medium, so that the heat transfer medium can transfer more heat, that is, the thermal conductivity of the first medium will increase as the temperature increases. Unless otherwise specified, the thermal conductivity involved in the embodiments of the present application can be understood as the thermal conductivity of the first medium at 25°C.
- the thermal conductivity of the first medium is greater than or equal to 0.1 W/m ⁇ k at 25° C.
- the first medium has a large thermal conductivity, and the first medium per unit length absorbs more heat when the unit temperature changes, so the working fluid can achieve better temperature control function.
- Specific heat capacity can be understood as the heat capacity of the first medium per unit mass. The higher the specific heat capacity of the first medium, the more heat the first medium per unit mass absorbs when the unit temperature changes, and the more significant the temperature control function of the corresponding working fluid.
- the specific heat capacity of the first medium is affected by temperature. Unless otherwise specified, the specific heat capacity involved in the embodiments of the present application can be understood as the specific heat capacity of the first medium at 25°C.
- the specific heat capacity of the first medium is greater than or equal to 1000 J/kg ⁇ °C in an environment of 25°C.
- the specific heat capacity of the first medium can be: 1000 J/kg ⁇ °C, 1500 J/kg ⁇ °C, 1500 J/kg ⁇ °C, etc.
- the specific heat capacity of the first medium is greater than or equal to 1000 J/kg ⁇ °C under a 25°C environment.
- the first medium has a large specific heat capacity, and the first medium absorbs more heat per unit mass when the unit temperature changes, so the working medium can achieve better temperature control function.
- Viscosity can be understood as the resistance of the first medium to flow. Specifically applied to the embodiment of the present application, the smaller the viscosity of the first medium, the smaller the resistance encountered by the first medium during flow, the more heat the first medium transfers per unit time, and the more significant the temperature control function of the working fluid.
- the viscosity of the first medium is affected by temperature. Unless otherwise specified, the viscosity involved in the embodiments of the present application can be understood as the viscosity of the first medium at 25°C.
- the viscosity of the first medium may be less than or equal to 50 cp at 25° C.
- the viscosity of the first medium may be 50 cp, 40 cp, 30 cp, 20 cp, 10 cp, and the like.
- the viscosity of the first medium is less than or equal to 50cp at 25°C.
- the first medium has a smaller viscosity, and the resistance encountered during the flow of the first medium is smaller.
- the first medium can transfer more heat per unit time, and the working medium can achieve better temperature control function.
- the working fluid disclosed in the embodiment of the present application also includes: a second phase.
- the second phase is used to form a liquid interface with the first medium, so that the working medium can achieve a flow visualization effect.
- the medium included in the second phase can be referred to as the second medium.
- the embodiments of the present application do not specifically limit the second medium.
- Any medium that can form a liquid interface with the first medium can be used as the second medium in the embodiments of the present application.
- the second medium can include, but is not limited to: hydrocarbons, heterocyclic compounds, fluorinated liquids, quicksand oil, etc.
- the embodiment of the present application does not specifically limit the number of the second medium contained in the second phase.
- the number of the second medium contained in the second phase can be: 1, 2, 3, etc.
- the embodiments of the present application do not specifically limit the dissolution conditions of the second media with each other.
- At least two second media are miscible.
- the second phase may include: hydrocarbons and heteroatom compounds, wherein the hydrocarbons and heteroatom compounds are mutually soluble and may form a homogeneous phase (second phase).
- the second phase may include hydrocarbons, heteroatom compounds and quicksand oil.
- the hydrocarbons and heteroatom compounds may be miscible to form a mixed organic liquid.
- a liquid interface is formed between the quicksand oil and the mixed organic liquid (immiscible).
- a liquid interface exists between any two second media.
- the second phase may include: fluorinated liquid and quicksand oil.
- the fluorinated liquid and quicksand oil may form a liquid interface.
- the molecular structure of the hydrocarbon may include:
- the stability of the liquid interface is related to the solubility of the second medium in the first medium, specifically, the larger the relative molecular mass of the second medium, the lower the solubility of hydrocarbons in the first medium, the more stable the liquid interface between the second medium and the first medium, and the more stable the visualization effect of the working fluid flow.
- n in CH 3 —(CH 2 ) n —CH 3 can be greater than or equal to 5.
- n in CH 3 -(CH 2 ) n -CH 3 is greater than or equal to 5
- the solubility of hydrocarbons in the first medium is relatively small, and the hydrocarbons and the first medium can form a stable liquid interface, ensuring that the working fluid can achieve a stable flow visualization effect.
- the stability of the liquid interface is related to the boiling point of the second medium, specifically, the larger the relative molecular mass of the second medium, the higher the boiling point of the second medium, the better the thermal stability of the second medium, the more stable the liquid interface between the second medium and the first medium, and the more stable the visualization effect of the working fluid flow.
- n in CH 3 —(CH 2 ) n —CH 3 can be greater than or equal to 5.
- n in CH 3 -(CH 2 ) n -CH 3 is greater than or equal to 5, the boiling point of hydrocarbons is relatively high, and the hydrocarbons and the first medium can form a stable liquid interface, ensuring that the working fluid can have a stable flow visualization effect.
- the heat dissipation performance of the second medium is related to the viscosity of the second medium, specifically, the smaller the relative molecular mass of the second medium is, the lower the viscosity of the second medium is, and the better the heat dissipation performance of the second medium is.
- n may be less than or equal to 11.
- n in CH 3 -(CH 2 ) n -CH 3 is less than or equal to 11
- the hydrocarbon has a smaller viscosity
- the working fluid containing the hydrocarbon encounters less resistance during flow
- the working fluid transfers more heat per unit time
- the working fluid can achieve better temperature control function.
- n in CH 3 -(CH 2 ) n -CH 3 can be 5-11.
- n can be greater than or equal to 5.
- n can be less than or equal to 11.
- n can be between 5-11.
- n can be greater than or equal to 0.
- n can be less than or equal to 5.
- n can be between 0 and 5.
- n can be greater than or equal to 0.
- n can be less than or equal to 5.
- n can be in the range of 0-5 to take into account both the visual effect of stable flow of the working fluid and the better temperature control function.
- the molecular structure of the heteroatom compound may include:
- the molecular structure of the heteroatom compound (second medium) includes: a benzene ring
- the benzene ring has greater rigidity, which in turn makes the heteroatom compound have greater rigidity.
- the working fluid may further include: an organic dye.
- the solubility of the organic dye in the second medium is greater than the solubility of the organic dye in the first medium.
- the introduction of the organic dye can increase the color contrast between the first medium and the second phase, so that the working fluid can have a significant flow visualization effect.
- the working fluid may also include: a demulsifier.
- the demulsifier can destroy the emulsion, thereby restoring the liquid interface between the first medium and the second phase, so that the working fluid has a stable liquid interface, so that the working fluid can have a stable flow visualization effect.
- the embodiments of the present application do not specifically limit the demulsifier, and any auxiliary agent that can destroy the emulsion formed by the second phase and the first medium can be used as a demulsifier in the embodiments of the present application.
- the demulsifier may include sodium alkylnaphthalene sulfonate, sodium petroleum sulfonate, naphthenate, polyethylene oxide propylene oxide copolymer, organic alcohol, organic ketone, etc.
- the hydrophilic-lipophilic balance value of the demulsifier is between 1 and 20, so that the demulsifier can exist at the liquid interface between the first medium and the second phase, stabilizing the liquid interface and allowing the working fluid to have a stable flow visualization effect.
- the molecular structure of sodium alkylnaphthalene sulfonate includes:
- R is a hydrophobic group.
- the hydrophobic group may include: cycloalkyl, alkoxy, alkyl, etc.
- substitution positions of R and sulfonic acid group (SO 3 Na - ) in sodium alkylnaphthalene sulfonate are shown for example only, and the above substitution positions are not limiting.
- SO 3 Na - can be substituted with naphthalene ring.
- R can be connected to C5, C6, or C8 on the naphthalene ring.
- the molecular structure of sodium alkylnaphthalene sulfonate includes: (SO 3 Na - ), so that the binding ability of sodium alkylnaphthalene sulfonate to the first medium is stronger than the binding ability of the second medium to the first medium.
- the second medium is dispersed in the first medium in the form of small droplets to form an emulsion
- the first medium preferentially binds to SO 3 Na - , resulting in a decrease in the thickness of the hydration layer on the surface of the small droplets, and the small droplets tend to aggregate with each other to form a second phase, thereby restoring the liquid interface between the first medium and the second phase.
- the molecular structure of sodium alkylnaphthalene sulfonate includes a naphthalene ring.
- the naphthalene ring has greater rigidity, which in turn ensures that the demulsifier has greater rigidity.
- the second phase is emulsified with the first medium, the second phase is dispersed in the first medium in the form of small droplets. Since the demulsifier has greater rigidity, the demulsifier can reach the surface of the small droplets more quickly, so that the small droplets can break away from the constraints of the first medium and aggregate into the second phase, that is, the demulsifier has a faster demulsification efficiency, and the working fluid can quickly restore the liquid interface.
- the demulsification efficiency of the demulsifier is related to the rigidity of the demulsifier, specifically, the more carbon atoms in the main chain of the demulsifier, the longer the molecular chain of the demulsifier, the weaker the rigidity of the demulsifier, and the lower the demulsification efficiency of the demulsifier.
- the number of carbon atoms in the main chain of R is less than or equal to 8.
- the stability of the cold working fluid flow visualization effect is related to the boiling point of the demulsifier, specifically, the larger the relative molecular mass of the demulsifier, the higher the boiling point of the demulsifier, the better the stability of the demulsifier, the more stable the liquid interface between the second phase and the first medium, and the more stable the working fluid flow visualization effect.
- the number of carbon atoms in the main chain of R is greater than or equal to 1.
- the number of carbon atoms in the main chain of R is 1-8.
- the molecular structure of cyclopentaneate includes:
- the molecular structure includes: cycloalkyl
- the cycloalkyl group has greater rigidity, so that the demulsifier can have greater rigidity, and the demulsifier can reach the surface of the small droplets faster to achieve the demulsification function, that is, the demulsifier has a faster demulsification efficiency, and the working fluid can quickly restore the liquid interface.
- n can be greater than or equal to 3 to ensure It has a higher boiling point, thus ensuring that the working fluid has a stable liquid junction interface.
- n can be less than or equal to 12 to ensure It has greater rigidity, thereby ensuring that the working fluid has a stable liquid interface.
- n can be between 3 and 12.
- the molecular structure of the organic alcohol includes: At least one of .
- the molecular structure of the organic alcohol includes: hydroxyl (-OH), and the binding ability of hydroxyl with water is stronger than the binding ability of the second medium with water. Therefore, the organic alcohol can be used as a demulsifier in the embodiment of the present application.
- the molecular structure of the organic alcohol may include: wait.
- the symmetrical molecular structure makes the organic alcohol more rigid, thereby ensuring that the demulsifier has a faster demulsification efficiency.
- the molecular structure of the organic ketone includes: wait.
- the molecular structure of the organic ketone includes: They all have symmetrical molecular structures, which makes the organic ketone (demulsifier) have greater rigidity, thereby ensuring that the working fluid has a stable liquid interface.
- n can be greater than or equal to 2
- m can be greater than or equal to 4, to ensure It has a higher boiling point, thus ensuring that the working fluid has a stable flow visualization effect.
- n can be less than or equal to 6
- m can be less than or equal to 10, so that It has greater rigidity, thus ensuring that the working fluid has a stable flow visualization effect.
- n can be between 2 and 6
- m can be between 4 and 10.
- the first medium includes water
- the working fluid there may be a problem with the injection of the working fluid, causing the working fluid to adhere to the inner wall of the cavity.
- the water in the working fluid has a large surface tension, which makes it difficult for the working fluid to infiltrate the inner wall of the cavity, and the working fluid adheres to the inner wall of the cavity, i.e., a phenomenon of wall hanging occurs.
- FIG. 5 it can be seen that the working fluid 300 adheres to the inner wall of the inner wall B of the cavity.
- the working fluid can also include: drag-reducing additive.
- the drag reducer can reduce the flow resistance of the first medium, so that the working fluid transfers more heat per unit time, and the working fluid can achieve better temperature control function.
- the embodiments of the present application do not specifically limit the types of additives contained in the drag reducer.
- Any additive that can reduce the flow resistance of the first medium can be used as a drag reducer in the working fluid disclosed in the embodiments of the present application.
- the drag reducer can reduce the surface tension of the first medium, improve the wetting performance of the first medium on the inner wall of the cavity, and play a role in alleviating the wall adhesion of the working fluid.
- the drag reducing agent may include: poly- ⁇ -olefin, polymethacrylate, polyacrylamide, polyethylene oxide, poly- ⁇ -octene, poly- ⁇ -decene, cationic polyacrylamide, and the like.
- the heat dissipation performance of the cold working medium is related to the flexibility of the drag reducer, specifically, the larger the relative molecular mass of the drag reducer, the longer the molecular chain of the drag reducer, the better the flexibility of the drag reducer, the more significant the drag reducer is in reducing the flow resistance of the first medium, and the better the heat dissipation performance of the working medium.
- the relative molecular mass of the drag reducer may be greater than or equal to 2*10 5 .
- the relative molecular mass of the drag reducer may include: 5*10 5 , 1*10 6 , 5*10 6 and the like.
- the relative molecular mass of the drag reducer can be greater than or equal to 5*10 5 .
- the drag reducer has a larger relative molecular mass, a longer molecular chain, and greater flexibility.
- the drag reducer can reduce the flow resistance generated during the flow of the first medium to a greater extent.
- the first medium can transfer more heat per unit time, and the heat dissipation performance of the working fluid is better.
- the present application also discloses a liquid cooling module.
- the liquid cooling module 10 includes a pump 200 , a liquid cooling module 100 , and a working medium (not shown in the figure).
- the working medium is filled in the cavity 110 of the liquid cooling module 100
- the pump 200 is connected to the cavity 110 of the liquid cooling module.
- the pump 200 may include: a pump base 210 and a piezoelectric component 220 connected to the pump base 210.
- the pump base 210 is provided with a pump liquid inlet 211 and a pump liquid outlet 212 .
- the liquid-cooling module 100 is provided with a liquid-cooling outlet 111 and a liquid-cooling inlet 112.
- the liquid-cooling outlet 111 is used to communicate with the pump inlet 211
- the liquid-cooling inlet 112 is used to communicate with the pump outlet 212.
- Part of the liquid-cooling module 100 around the liquid-cooling outlet 111 and part of the pump base 210 around the pump inlet 211 form a sealing structure to achieve communication between the liquid-cooling outlet 111 and the pump inlet 211.
- Part of the liquid-cooling module 100 around the liquid-cooling inlet 112 and part of the pump base 210 around the pump outlet 212 form a sealing structure to achieve communication between the liquid-cooling inlet 112 and the pump outlet 212, that is, to achieve communication between the pump base 210 and the cavity 110 of the liquid-cooling module.
- the liquid cooling outlet 111 is used to communicate with the pump inlet 211, which does not mean that the liquid cooling outlet 111 and the pump inlet 211 are always connected, but only indicates that under certain conditions, the working fluid can flow from the liquid cooling outlet 111 to the pump inlet 211.
- the relationship between the liquid cooling inlet 112 and the pump outlet 212 is similar.
- the pump 200 (the pump base 210 therein) in the liquid cooling module 10 disclosed in the present implementation is connected to the cavity 110 of the liquid cooling module, and the pump 200 can be used as a power source to provide flow power for the working medium 300 in the cavity of the liquid cooling module 100.
- the working medium 300 can be used as a medium for heat transfer during the flow process, so that the liquid cooling module 100 can achieve a long-lasting heat dissipation effect.
- the embodiment of the present application does not specifically limit the connection method between a part of the liquid cooling module on the side of the liquid cooling outlet 111 and a part of the pump base on the side of the pump inlet 211 .
- part of the liquid cooling module around the liquid cooling outlet 111 and part of the pump base around the pump inlet 211 are integrated structures
- part of the liquid cooling module around the liquid cooling inlet 112 and part of the pump base around the pump outlet 212 are integrated structures.
- the formation of an integrated structure means that there is no continuous interface between the two due to mutual fusion and penetration, and the surrounding side of the liquid cooling outlet refers to the adjacent area around the liquid cooling outlet.
- a part of the liquid cooling module on the side of the liquid cooling outlet 111 and a part of the pump base on the side of the pump inlet 211 are separated.
- the part of the liquid cooling module on the side of the liquid cooling outlet 111 and the part of the pump base on the side of the pump inlet 211 can be connected by screw fixing, high temperature adhesive bonding, UV adhesive light curing bonding, hot press bonding sealing welding, hot melt welding, ultrasonic welding, ultra-frequency welding, etc.
- the part of the liquid cooling module on the side of the liquid cooling inlet 112 and the part of the pump base on the side of the pump outlet 212 can be a split structure, and the above method can be used to connect the part of the liquid cooling module on the side of the liquid cooling inlet 112 and the part of the pump base on the side of the pump outlet 212.
- the surface energy difference between the part of the liquid cooling module 100 around the liquid cooling outlet 111 and the part of the pump base 210 around the pump inlet 211 is less than or equal to 5mN/m.
- the surface energy difference between the part of the liquid cooling module 100 around the liquid cooling outlet 111 and the part of the pump base 210 around the pump inlet 211 is less than or equal to 5 mN/m.
- the surface energy difference between the liquid cooling module 100 and the pump base 210 is small. The stress of the liquid cooling module 100 and the pump base 210 during bending can be well released, so that the liquid cooling module 100 and the pump base 210 have a higher elongation at break.
- the surface energy difference between a portion of the liquid cooling module 100 around the liquid cooling inlet 112 and a portion of the pump base 210 around the pump outlet 212 is less than or equal to 5 mN/m.
- the liquid-cooled module 100 has a cavity 110 inside.
- the working fluid is filled in the cavity 110 of the liquid-cooled module.
- the working fluid adopts the working fluid disclosed in the embodiment of the present application.
- the working fluid may include: a first medium and a second phase. There is a liquid interface between the first medium and the second phase. When the working fluid moves under the drive of the pump, the liquid interface of the working fluid will move relative to the cavity, so that the working fluid can show a flow visualization effect.
- the visible light transmittance of at least part of the area of the liquid cooling module 100 is greater than or equal to the threshold value, so that the flow visualization effect of the working fluid 300 can be displayed through the liquid cooling module 100 in this area, that is, the liquid cooling module 10 can achieve a visualization effect.
- the embodiment of the present application does not specifically limit the value of the above threshold.
- the threshold may be 70%, 80%, 90%, etc.
- At least part of the liquid cooling module 100 can be made of transparent material so that at least part of the liquid cooling module 100 has a large visible light transmittance, so that the liquid cooling module can achieve a significant visualization effect.
- the transparent material can be understood as a material whose visible light transmittance in the wavelength band of 380nm-760nm is greater than a threshold value.
- transparent materials may include: inorganic glass, polyethylene terephthalate (PET), polyethylene naphthalate (PEN), polypropylene (PP), cycloolefin copolymer (COC), polytetramethylpentene (PMP), Polyimide (PI), polymethyl methacrylate (PMMA), polyphenylene sulfide (PPS), polyetheretherketone (PEEK), styrene-acrylonitrile copolymer (AS), acrylonitrile-butadiene-styrene copolymer (ABS), butadiene-styrene copolymer (BS), etc.
- PET polyethylene terephthalate
- PEN polyethylene naphthalate
- PP polypropylene
- COC cycloolefin copolymer
- PMP polytetramethylpentene
- PMP Polyimide
- PMMA polymethyl methacrylate
- PPS polyphenylene sulfide
- the transparent material disclosed in this implementation has a large visible light transmittance, and the liquid cooling module 100 formed using the above material has a large visible light transmittance (in some implementations, the visible light transmittance of the liquid cooling module 100 can reach more than 90%), so that the liquid cooling module 10 can achieve a significant flow visualization effect.
- the molecular structure of the transparent material may include but is not limited to:
- the molecular structure of the transparent material contains: ether bond (-O-), the ether bond can destroy the conjugated structure of the benzene ring in the molecular structure, so that the transparent material has a higher visible light transmittance.
- the liquid cooling module 100 has a higher visible light transmittance, ensuring that the liquid cooling module 10 can achieve a significant flow visualization effect.
- thermodynamic and mechanical properties of the liquid cooling module 100 are related to the relative molecular weight of the transparent material, the greater the relative molecular weight of the transparent material, the better the thermodynamic and mechanical properties of the transparent material.
- n may be greater than or equal to 100, so that the molecular structure includes The transparent material has good thermodynamic properties and mechanical properties. This ensures that the liquid-coated cooling module 100 obtained from the transparent material has good thermodynamic properties and mechanical properties.
- the visible light transmittance of the liquid cooling module 100 is related to the number of conjugated structures in the molecular structure of the transparent material.
- the conjugated structure has a charge transfer complex (CTC) effect between molecules and within molecules, causing the transparent material to show color. Therefore, the more conjugated structures are included in the molecular structure of the transparent material, the lower the visible light transmittance of the transparent material.
- CTC charge transfer complex
- n may be less than or equal to 200, so that the molecular structure includes The transparent material has a high visible light transmittance, thereby ensuring that the liquid cooling module 100 obtained from the transparent material has a high visible light transmittance, ensuring that the liquid cooling module 100 can exhibit a significant flow visualization effect.
- n is between 100 and 200.
- the n in can be greater than or equal to 100. As a feasible implementation method, The n in can be less than or equal to 200. As a feasible implementation method, The n in can be between 100-200.
- the molecular structure of the transparent material may include: wait.
- the molecular structure of the transparent material includes: Transparent materials have fewer conjugated structures, so they have higher visible light transmittance. Therefore, the liquid cooling module can achieve a more significant flow visualization effect.
- the thermal and mechanical properties of the liquid cooling module 100 are related to the relative molecular weight of the transparent material, the greater the relative molecular weight of the transparent material, the better the thermal and mechanical properties of the liquid cooling module 100 formed of the transparent material.
- n is greater than or equal to 200, so that the molecular structure includes The transparent material has good thermodynamic properties and mechanical properties. This ensures that the liquid cooling module 100 obtained from the transparent material has good thermodynamic properties and mechanical properties.
- the bending performance of the liquid cooling module 100 is related to the distribution of the substituents in the transparent material, specifically, the greater the density of the substituents in the molecular structure, the worse the flexibility of the transparent material, and accordingly, the worse the bending performance of the liquid cooling module 100 and the liquid cooling module 10 formed by the transparent material.
- n is less than or equal to 300.
- n is less than or equal to 300, and the bulky substituents distributed in transparent materials The density of the large-volume substituents distributed in the transparent material is relatively small, and the transparent material has better flexibility.
- the liquid-cooling module 100 formed by the transparent material has better flexibility, ensuring that the liquid-cooling module 10 has better bending performance.
- the medium n is between 200-300.
- the n in can be greater than or equal to 240. As a feasible implementation method, The n in can be less than or equal to 340. As a feasible implementation method, The n in can be between 240-340.
- the above embodiment involves using transparent materials to form the liquid cooling module 100, which can be understood as the transparent material forming at least a portion of the liquid cooling module 100 so that at least a portion of the liquid cooling module 100 has a higher visible light transmittance.
- the liquid cooling module 100 may include: a cover layer 120, a flow channel layer 130, and a cover layer 140 arranged in sequence.
- the cover layer 120 is arranged on one side of the flow channel layer 130, and the cover layer 140 is arranged on the other side of the flow channel layer 130.
- the cover layer 120, the flow channel layer 130, and the cover layer 140 are arranged to form a cavity 110.
- one of the cover layers 120 is referred to as the top cover layer 120; the other cover layer 140 is referred to as the bottom cover layer 140.
- the flow channel layer 130 includes: at least one rigid substrate 131.
- the rigid substrate 131 is disposed between the top cover layer 120 and the bottom cover layer 140 to support the top cover layer 120 and the bottom cover layer 140.
- the rigid substrate 131 is also used to separate the flow channel of the cavity 110 into at least one liquid inlet channel 1101 and at least one liquid outlet channel 1102.
- the liquid inlet channel 1101 and the liquid outlet channel 1102 are formed by the rigid substrate 131, the top cover layer 120 and the bottom cover layer 140.
- the liquid inlet channel 1101 is connected to the liquid cooling inlet 112, and the liquid outlet channel 1102 is connected to the liquid cooling outlet 111.
- the liquid inlet channel 1101 and the liquid outlet channel 1102 are separated by the rigid substrate 131, which is conducive to preventing the cooling medium in the liquid inlet channel 1101 and the liquid outlet channel 1102 from mixing and affecting the heat dissipation effect.
- the top cover layer 120, the rigid substrate 131 and the bottom cover layer 140 can be an integrated structure, so that the liquid inlet channel 1101 and the liquid outlet channel 1102 formed by the top cover layer 120, the rigid substrate 131 and the bottom cover layer 140 have a good sealing effect, avoiding the occurrence of liquid (working medium 300) leakage problems.
- the top cover layer 120, the rigid base 131 and the bottom cover layer 140 are an integrated structure
- the top cover layer 120, the rigid base 131 and the bottom cover layer 140 are all made of transparent materials so that the liquid cooling module can achieve a flowable visualization effect.
- the top cover layer 120, the rigid substrate 131 and the bottom cover layer 140 can be a split structure.
- the top cover layer 120, the rigid substrate 131 and the bottom cover layer 140 can be connected by screw fixing, high temperature adhesive bonding, UV adhesive light curing bonding, hot pressing bonding sealing welding, hot melt welding, ultrasonic welding, ultra-frequency welding and other methods.
- the top cover layer 120, the rigid substrate 131 and the bottom cover layer 140 can be made of the same or different materials. However, it is necessary to ensure that at least one of the top cover layer 120 and the bottom cover layer 140 is made of a transparent material.
- the difference between the melting temperature of the covering layer (120, 140) and the melting temperature of the rigid substrate 131 is less than or equal to 20° C.
- the difference between the melting temperatures of the covering layer (120, 140) and the rigid substrate 131 is small, which is conducive to the forming of an integrated structure of the covering layer (120, 140) and the rigid substrate 131 by sealing welding, thereby improving the sealing effect of the liquid inlet channel 1101 and the liquid outlet channel 1102.
- Sealing welding may include high temperature connection methods such as pressure bonding sealing welding, hot melt welding, ultrasonic welding, and ultra-wave welding without solder paste. Hot pressing sealing is usually performed in a high temperature environment. If the difference in thermal expansion coefficient between the covering layer (120, 140) and the rigid substrate 131 is large, the covering layer (120, 140) and the rigid substrate 131 will warp, reducing the sealing effect of the liquid inlet channel 1101 and the liquid outlet channel 1102 surrounded by the covering layer (120, 140) and the rigid substrate 131.
- the difference between the thermal expansion coefficient of the covering layer (120, 140) and the thermal expansion coefficient of the rigid substrate 131 is less than or equal to ⁇ 10* 10-6 /(°C).
- the difference between the thermal expansion coefficient of the covering layer (120, 140) and the thermal expansion coefficient of the rigid substrate 131 is less than or equal to ⁇ 10*10 -6 /°C.
- the difference between the thermal expansion coefficient of the covering layer (120, 140) and the rigid substrate 131 is small, and can be The warping of the covering layer (120, 140) and the rigid substrate 131 during the sealing welding process is reduced to a certain extent, thereby ensuring that the liquid inlet channel 1101 and the liquid outlet channel 1102 surrounded by the covering layer (120, 140) and the rigid substrate 131 have a good sealing effect.
- the thickness of the cover layer (120, 140) is less than 2 mm. In this implementation, the thickness of the cover layer (120, 140) is less than or equal to less than 2 mm.
- a lightweight liquid cooling module 10 can be realized.
- a liquid cooling module 10 with a significant flow visualization effect can be realized.
- an anti-evaporation layer is provided on the surface of the covering layer (120, 140).
- the embodiment of the present application does not specifically limit the position of the anti-evaporation layer.
- the anti-evaporation layer can be provided on the side of the covering layer (120, 140) adjacent to the working fluid.
- the anti-evaporation layer can be provided on the side of the covering layer (120, 140) away from the working fluid.
- the density of the anti-evaporation layer is greater than the density of the covering layer.
- the provision of the anti-evaporation layer can increase the difficulty for the working fluid to escape from the cavity, that is, the anti-evaporation layer plays a role in reducing the evaporation loss of the working fluid.
- the visible light transmittance of the anti-evaporation layer is greater than or equal to a threshold value to ensure the flow visualization effect of the liquid cooling module.
- the embodiment of the present application does not specifically limit the material used in the anti-evaporation layer. Any material that can prevent the evaporation loss of the working fluid can be used as the material of the anti-evaporation layer in the embodiment of the present application.
- the material used in the anti-evaporation layer may include: at least one of a polyimide layer, a polyvinylidene chloride layer, or a metal film layer.
- an anti-evaporation layer is provided on the surface of the cover layer (120, 140).
- the anti-evaporation layer can prevent the evaporation loss of the working fluid, thereby ensuring the long-term reliability of the liquid cooling module.
- the visible light transmittance of the anti-evaporation layer is greater than or equal to the threshold value, thereby ensuring the flow visualization effect of the liquid cooling module.
- the working fluid disclosed in the embodiment of the present application can have a smaller impedance (flow resistance) and a larger flow rate when applied in a liquid cooling module, thereby having a stronger heat exchange capacity and an equivalent thermal conductivity.
- Figure 7 is a relationship curve between the flow rate Q and the impedance P (in Pa) of the liquid cooling module.
- curve C is the pressure-flow curve of the pump in the liquid cooling system, that is, the P-Q curve.
- Curve A is the impedance-flow P-Q data of the working fluid (the first medium is water) disclosed in the embodiment of the present application, and the intersection with curve C is the impedance-flow value in actual application, the working point impedance is ⁇ 37000KPa, and the flow rate is ⁇ 1.8ml/min;
- Curve B is the impedance-flow P-Q data using the working fluid (fluorinated liquid plus quicksand oil), and the intersection with curve C is the impedance-flow value in actual application, the working point impedance is ⁇ 60000KPa, and the flow rate is ⁇ 1.2ml/min. It can be seen that for the same pump and the same liquid cooling module, the mixed working fluid disclosed in the embodiment of the present application has smaller viscosity and impedance, higher flow rate and flow velocity, and thus has a lower temperature difference and a higher equivalent thermal conductivity.
- the experimental conditions are:
- the working fluid disclosed in the embodiment of the present application is applied to a liquid cooling module (the total thickness of the liquid cooling module is 0.2 mm).
- the temperature difference between the hot end and the cold end of the liquid cooling module is approximately 3.7°C, and the equivalent thermal conductivity is equivalent to that of a VC (Vapor Chamber) heat spreader or heat pipe for two-phase heat exchange, >5000 W/m-K, which is much higher than the conventional thermal conductivity of copper, aluminum and natural graphite ( ⁇ 800 W/m-K).
- the working fluid fluorinated liquid plus quicksand oil
- the liquid cooling module (the total thickness of the liquid cooling module is 0.2mm).
- the temperature difference between the hot end and the cold end of the liquid cooling module is approximately 14°C.
- the working fluid fluorinated liquid plus quicksand oil
- the liquid cooling module (the total thickness of the liquid cooling module is 0.33mm).
- the temperature difference between the hot end and the cold end of the liquid cooling module is approximately 8.3°C.
- liquid cooling module disclosed in the embodiment of the present application is further described below with reference to specific examples.
- Embodiment 1 is a diagrammatic representation of Embodiment 1:
- the second phase includes: fluorinated liquid and heat transfer oil. Both the fluorinated liquid and the heat transfer oil can form a liquid interface with water, so that the flow state of the working fluid has a visual effect.
- the working fluid also includes: inorganic dye reactive brilliant orange. Reactive brilliant orange can be dissolved in water, so that the first medium is colored, thereby enhancing the contrast between the first medium and the second phase, so that the visualization effect of the working fluid flow is enhanced.
- the working fluid is encapsulated in the cavity of the liquid cooling module 100, and the liquid cooling module 100 uses a transparent material COC.
- the liquid cooling module 100 has a high visible light transmittance. The visual effect of the working fluid flow can be displayed through the liquid cooling module 100.
- the liquid cooling module disclosed in the first embodiment has a flow visualization effect.
- the first medium includes water with better heat dissipation performance, which ensures that the liquid cooling membrane group has excellent heat dissipation capacity. After running in the presence of a 50°C heat source, the temperature difference at each point of the liquid cooling membrane group is less than 5°C.
- Embodiment 2 is a diagrammatic representation of Embodiment 1:
- the micro pump liquid cooling module disclosed in the second embodiment has the same components as the liquid cooling module disclosed in the first embodiment, and each component has similar components.
- the first medium in the liquid cooling module disclosed in the second embodiment also includes: liquid metal: Since liquid metal is a good conductor of heat, the heat dissipation capacity of the first medium containing liquid metal is further improved. Therefore, the heat dissipation capacity of the liquid cooling module disclosed in the second embodiment is further improved.
- the liquid cooling module disclosed in the third embodiment has a flow visualization effect and excellent heat dissipation capability.
- Embodiment 4 is a diagrammatic representation of Embodiment 4:
- a fluorocarbon surfactant is added to the working fluid, and the fluorocarbon surfactant can reduce the surface tension of the first medium, thereby reducing the difficulty of perfusion of the first medium and reducing the occurrence of the problem of the first medium hanging on the wall.
- the present application also discloses an electronic device, see Figures 8 to 12.
- the electronic device 1 may include: a liquid cooling module 10 and a housing 20 disclosed in the present application.
- the liquid cooling module 10 is embedded in the housing 20, and the visible light transmittance of at least part of the housing 20 is greater than or equal to a threshold.
- the area C of the housing 20 where the visible light transmittance is greater than or equal to the threshold at least partially overlaps with the area D of the liquid cooling module 100 where the visible light transmittance is greater than or equal to the threshold.
- the housing 20 is located at the outermost layer of the electronic device 1 and can protect other components.
- the liquid cooling module 10 may include: a liquid cooling module 100, a pump 200 and a working medium (not shown in the figure).
- the working medium may include: a first medium and a second medium.
- the pump 200 acts as a power source for the working medium to drive the working medium to move. During the movement of the working medium, the liquid interface moves relative to the inner wall of the cavity, thereby achieving a flow visualization effect.
- the area of the housing 20 where the visible light transmittance is greater than or equal to the threshold value at least partially overlaps with the area of the liquid cooling module 100 where the visible light transmittance is greater than or equal to the threshold value. This allows the moving visualization effect of the working medium to be displayed through the area of the housing 20 where the visible light transmittance is greater than or equal to the threshold value and the area of the liquid cooling module 100 where the visible light transmittance is greater than or equal to the threshold value, that is, the electronic device can display the flow visualization effect.
- the area of the electronic device that displays the flow visualization effect can be called the flow visualization area 2A.
- the electronic devices disclosed in the embodiments of the present application may include, but are not limited to: a mobile phone ( FIG. 8 ), a tablet computer ( FIG. 9 ), a laptop computer ( FIG. 10 ), a vehicle-mounted device ( FIG. 11 ), etc.
- the liquid cooling module 10 is embedded in the inner housing 20 of the mobile phone, and the visible light transmittance of the area 2A of the camera substrate of the inner housing 20 of the mobile phone is greater than or equal to the threshold value, and the liquid interface of the working medium can be seen through the area 2A (not shown in the figure).
- the pump drives the working medium to move, so that the area 2A becomes the flow visualization area 2A.
- the liquid cooling module 10 is embedded in the inner housing 20 of the mobile phone, and the mobile phone housing includes: a first non-folding portion 21, a folding portion 23, and a second non-folding portion 22.
- the visible light transmittance of a part of the first non-folding portion 21, a part of the folding portion 23, and a part of the second non-folding portion 22 is greater than or equal to a threshold value (transparent area).
- the above transparent area constitutes a cross-axis flow visualization area 2A.
- the liquid cooling module 10 is embedded in the tablet computer housing 20 , and the visible light transmittance in at least a portion of the tablet computer housing 20 is greater than or equal to a threshold value, forming a flow visualization area 2A in the area.
- the housing of the notebook computer may include: a body housing 24 and a display housing 25.
- the liquid cooling module 10 is embedded in the fuselage shell 24 , so that the fuselage shell 24 may include a flow visualization area 2A.
- the liquid cooling module 10 is embedded in the display housing 25 , so that the display housing 25 may include a flow visualization area 2A.
- the liquid cooling module 10 may be embedded in the vehicle-mounted device housing 20 , so that the vehicle-mounted device housing 20 has a flow visualization area 2A.
- the shape of the light-transmitting area of the shell can be set to obtain flow visualization areas with different shapes.
- the embodiments of this application are only exemplary introductions of several shapes of flow visualization areas, and the above shapes do not constitute specific limitations.
- the embodiment of the present application also discloses an accessory, which is suitable for electronic equipment, including an accessory body and a liquid cooling module disclosed in the embodiment of the present application, wherein the liquid cooling module is embedded in the accessory body, and at least a part of the area of the accessory body has a visible light transmittance greater than or equal to a threshold value.
- the area of the accessory body where the visible light transmittance is greater than or equal to the threshold value at least partially overlaps with the area of the liquid cooling module where the visible light transmittance is greater than or equal to the threshold value. This allows the visualization effect of the working fluid flow in the liquid cooling module to be displayed through the accessory body in this area, i.e., this area of the accessory becomes a flow visualization area.
- FIG. 13 discloses a protective case, wherein the protective case 2 may include: an accessory body 40 and a liquid cooling module 10 embedded in the accessory body 40.
- the visible light transmittance of at least a part of the accessory body 40 is greater than or equal to a threshold value, so that the flow visualization effect of the working fluid can be displayed through the area, and the accessory has a flow display area 2A.
- the accessories involved in the embodiments of the present application can be understood as components used in conjunction with electronic devices, and components arranged outside the housing.
- the accessories may include but are not limited to: wristbands, protective cases.
- Figure 14 is an assembly diagram of a wearable device 1 and a wristband 2 (accessory), wherein the wristband 2 is connected to the wearable device 1 so that the wearable device 1 can be mounted on a target object.
- the liquid cooling module can be arranged in the wristband so that the wristband has a flow visualization area 2A.
- FIG. 15 is an assembly diagram of a tablet computer 1 and a protective shell 2 (accessory), wherein the protective shell 2 can be mounted outside the tablet computer 1 to protect the tablet computer 1.
- the liquid cooling module can be disposed inside the protective shell 2, so that the protective shell 2 has a flow visualization area 2A.
- Figure 16 is an assembly diagram of a mobile phone 1 and a connector 2 (accessory), wherein the connector 2 is connected to the mobile phone.
- the liquid cooling module can be arranged in the connector 2, so that the connector 2 has a flow visualization area 2A.
- the example of the present application also discloses a method for preparing a working fluid, comprising: measuring a first medium and a second medium; mixing the first medium and the second medium to obtain a working fluid
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Abstract
Description
Claims (31)
- 一种液冷模组,其特征在于,包括:液冷模件,所述液冷模件包括腔体,所述液冷模件至少部分区域的可见光透过率大于或等于阈值;工质,所述工质设置在所述腔体内,所述工质包括:第一介质和第二相,所述第二相与所述第一介质之间存在液接界面;泵,所述泵与所述腔体连通,所述泵用于带动所述腔体内的所述工质流动,以使得所述液接界面与所述腔体相对运动。
- 根据权利要求1所述的液冷模组,其特征在于,所述第一介质包括:水、液态金属中的至少一种。
- 根据权利要求1或2所述的液冷模组,其特征在于,还包括:水溶性染料,所述水溶性染料在所述第一介质中的溶解度大于所述水溶性染料在所述第二相中的溶解度。
- 根据权利要求1-3任一项所述的液冷模组,其特征在于,25℃环境下,所述第一介质的热导系数大于或等于0.1W/m·k。
- 根据权利要求1-4任一项所述的液冷模组,其特征在于,25℃环境下,所述第一介质的比热容大于或等于1000J/kg·℃。
- 根据权利要求1-5任一项所述的液冷模组,其特征在于,25℃环境下,所述第一介质的粘度小于或等于50cp。
- 根据权利要求1-6任一项所述的液冷模组,其特征在于,所述第一介质在所述工质中的质量分数大于或等于80%。
- 根据权利要求1-7任一项所述的液冷模组,其特征在于,所述第二相包括:至少一种第二介质。
- 根据权利要求8所述的液冷模组,其特征在于,至少两种所述第二介质互溶。
- 根据权利要求8所述的液冷模组,其特征在于,任意两种所述第二介质之间存在液接界面。
- 根据权利要求1-10任一项所述的液冷模组,其特征在于,所述工质还包括:有机染料,所述有机染料在所述第二相中的溶解度大于所述有机染料在所述第一介质中的溶解度。
- 根据权利要求1-11任一项所述的液冷模组,其特征在于,所述工质还包括:减阻剂;所述减阻剂用于降低所述第一介质的流动阻力。
- 根据权利要求12所述的液冷模组,其特征在于,所述减阻剂包括:聚α-烯烃、聚甲基丙烯酸酯、聚丙烯酰胺、聚氧乙烯、聚α-辛烯、聚α-癸烯、阳离子型聚丙烯酰胺中的至少一种。
- 根据权利要求12或13所述的液冷模组,其特征在于,所述减阻剂的相对分子质量大于或等于2*105。
- 根据权利要求1-14任一项所述的液冷模组,其特征在于,还包括:破乳剂;所述破乳剂用于破坏所述第一介质与所述第二相形成的乳状液。
- 根据权利要求15所述的液冷模组,其特征在于,所述破乳剂包括:烷基萘磺酸钠、石油磺酸钠、环烷酸盐、聚环氧乙烷环氧丙烷共聚物、有机醇、有机酮中的至少一种。
- 根据权利要求16所述的液冷模组,其特征在于,所述烷基萘磺酸钠的分子结构式包括:所述R包括:疏水基团。
- 根据权利要求16所述的液冷模组,其特征在于,所述环烷酸盐的分子结构式包括:所述中n在3-12。
- 根据权利要求16所述的液冷模组,其特征在于,所述有机醇的分子结构式包括:中的至少一种。
- 根据权利要求16所述的液冷模组,其特征在于,所述有机酮的分子结构式包括:中的至少一种。
- 根据权利要求15-20任一项所述的液冷模组,其特征在于,所述破乳剂的亲水亲油平衡值在1-20。
- 根据权利要求1-21任一项所述的液冷模组,其特征在于,所述液冷模件包括:流道层和至少两层覆盖层,一层所述覆盖层设置在所述流道层的一侧,另一层所述覆盖层设置在所述流道层的另一侧,所述覆盖层与所述流道层围设形成所述腔体,至少一层所述覆盖层的可见光透过率大于或等于阈值。
- 根据权利要求22所述的液冷模组,其特征在于,所述流道层的熔融温与所述覆盖层的熔融温度的差值小于或等于20℃。
- 根据权利要求22或23所述的液冷模组,其特征在于,所述流道层的热膨胀系数与所述覆盖层的热膨胀系数的差值小于或等于10*10-6/℃。
- 根据权利要求22-24任一项所述的液冷模组,其特征在于,所述覆盖层的厚度小于或等于2mm。
- 根据权利要求22-25任一项所述的液冷模组,其特征在于,至少一层所述覆盖层采用透明材料,所述透明材料包括:无机玻璃、聚对苯二甲酸乙二醇酯、聚萘二甲酸乙二醇酯、聚丙烯、环烯烃类共聚物、聚四甲基戊烯、聚酰亚胺、聚甲基丙烯酸甲酯、聚苯硫醚、聚醚醚酮、苯乙烯-丙烯腈共聚物、丙烯腈-丁二烯-苯乙烯共聚物、丁二烯-苯乙烯共聚物中的至少一种。
- 根据权利要求26所述的液冷模组,其特征在于,所述透明材料的分子结构式包括:中的至少一种;所述中n在100-200;所述中n在100-200。
- 根据权利要求26所述的液冷模组,其特征在于,所述透明材料的分子结构式包括:中的至少一种;所述中n在240-340;所述中n在200-300。
- 根据权利要求22-28任一项所述的液冷模组,其特征在于,还包括:防蒸散层,所述防蒸散层设置在所述覆盖层表面,所述防蒸散层的密度大于所述覆盖层的密度,所述防蒸散层的可见光透过率大于或等于阈值。
- 一种电子设备,其特征在于,包括:壳体和权利要求1-29任一项所述的液冷模组;所述液冷模组嵌入所述壳体,所述壳体至少部分区域的可见光透过率大于或等于阈值,所述壳体对可见光透过率大于或等于阈值的区域与所述液冷模件对可见光透过率大于或等于阈值的区域至少部分重合。
- 一种配件,适用于电子设备,其特征在于,包括:配件本体和权利要求1-29中任一项所述的液冷模组,所述液冷模组嵌入所述配件本体;所述配件本体对可见光透过率大于或等于阈值的区域与所述液冷模件对可见光透过率大于或等于阈值的区域至少部分重合。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP24814438.8A EP4622413A4 (en) | 2023-05-30 | 2024-05-28 | LIQUID COOLING MODULE, ELECTRONIC DEVICE AND CONNECTION |
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| CN202310630409.0 | 2023-05-30 | ||
| CN202310630409.0A CN117377269B (zh) | 2023-05-30 | 2023-05-30 | 液冷模组、电子设备及配件 |
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| WO2024245241A1 true WO2024245241A1 (zh) | 2024-12-05 |
| WO2024245241A9 WO2024245241A9 (zh) | 2025-07-24 |
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| CN120692803A (zh) * | 2024-03-22 | 2025-09-23 | 华为数字能源技术有限公司 | 一种液冷散热器和功率模组 |
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| CN113747716B (zh) * | 2021-09-06 | 2023-07-04 | Oppo广东移动通信有限公司 | 装饰件、壳体组件及其制备方法及电子设备 |
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2023
- 2023-05-30 CN CN202510719757.4A patent/CN121001294A/zh active Pending
- 2023-05-30 CN CN202310630409.0A patent/CN117377269B/zh active Active
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- 2024-05-28 WO PCT/CN2024/095822 patent/WO2024245241A1/zh not_active Ceased
- 2024-05-28 EP EP24814438.8A patent/EP4622413A4/en active Pending
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Also Published As
| Publication number | Publication date |
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| CN117377269B (zh) | 2025-06-24 |
| EP4622413A4 (en) | 2026-04-22 |
| WO2024245241A9 (zh) | 2025-07-24 |
| EP4622413A1 (en) | 2025-09-24 |
| CN117377269A (zh) | 2024-01-09 |
| CN121001294A (zh) | 2025-11-21 |
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