WO2024027698A1 - 可折叠设备 - Google Patents

可折叠设备 Download PDF

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Publication number
WO2024027698A1
WO2024027698A1 PCT/CN2023/110524 CN2023110524W WO2024027698A1 WO 2024027698 A1 WO2024027698 A1 WO 2024027698A1 CN 2023110524 W CN2023110524 W CN 2023110524W WO 2024027698 A1 WO2024027698 A1 WO 2024027698A1
Authority
WO
WIPO (PCT)
Prior art keywords
housing
chamber
thermally conductive
conductive sheet
foldable device
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
Application number
PCT/CN2023/110524
Other languages
English (en)
French (fr)
Inventor
刘雨
林向晨
孙永
朱旭
周肖
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Huawei Technologies Co Ltd
Original Assignee
Huawei Technologies Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Huawei Technologies Co Ltd filed Critical Huawei Technologies Co Ltd
Priority to EP23849404.1A priority Critical patent/EP4514084A4/en
Publication of WO2024027698A1 publication Critical patent/WO2024027698A1/zh
Priority to US18/968,714 priority patent/US20250098104A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

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
    • 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
    • G06F1/1637—Details related to the display arrangement, including those related to the mounting of the display in the housing
    • G06F1/1652—Details related to the display arrangement, including those related to the mounting of the display in the housing the display being flexible, e.g. mimicking a sheet of paper, or rollable
    • 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
    • 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
    • G06F1/1637—Details related to the display arrangement, including those related to the mounting of the display in the housing
    • G06F1/1641—Details related to the display arrangement, including those related to the mounting of the display in the housing the display being formed by a plurality of foldable display components
    • 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
    • G06F1/1675—Miscellaneous details related to the relative movement between the different enclosures or enclosure parts
    • G06F1/1681—Details related solely to hinges
    • 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
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/02—Constructional features of telephone sets
    • 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
    • H04M1/0206—Portable telephones comprising a plurality of mechanically joined movable body parts, e.g. hinged housings
    • H04M1/0208—Portable telephones comprising a plurality of mechanically joined movable body parts, e.g. hinged housings characterized by the relative motions of the body parts
    • H04M1/0214—Foldable telephones, i.e. with body parts pivoting to an open position around an axis parallel to the plane they define in closed position
    • H04M1/0216—Foldable in one direction, i.e. using a one degree of freedom hinge
    • 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
    • H04M1/0266—Details of the structure or mounting of specific components for a display module assembly
    • H04M1/0268—Details of the structure or mounting of specific components for a display module assembly including a flexible display panel
    • 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
    • H05K5/0226—Hinges
    • 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
    • H05K7/20954—Modifications to facilitate cooling, ventilating, or heating for display panels
    • H05K7/20963—Heat transfer by conduction from internal heat source to heat radiating structure
    • 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
    • G06F2200/203—Heat conductive hinge

Definitions

  • Embodiments of the present application relate to the technical field of electronic devices, and in particular to a foldable device.
  • the display screen can be a flexible screen, and the electronic device can be made into a foldable device.
  • a foldable device in some related technologies, includes a flexible screen, a rotating shaft mechanism, and two housings respectively installed on both sides of the rotating shaft mechanism.
  • the two housings are rotationally connected through the rotating shaft mechanism so that the foldable device can be folded and unfolded.
  • Switching between flat states the flexible screen is installed on two casings.
  • the flexible screen can be folded and flattened by the two casings.
  • a camera, motherboard module and other heating units can be installed in at least one casing. The heating unit generates The heat can be conducted to the shell where it is located, and the heat is dissipated to the external environment through the shell where it is located.
  • Embodiments of the present application provide a foldable device.
  • a flexible thermal conductive sheet across a rotating shaft mechanism between different casings and thermally connected to the different casings, the heat on the different casings can be conducted to each other.
  • the heat generated by the heating unit in one shell can be dissipated through multiple shells.
  • the temperature difference between different shells is small, and each shell is not prone to overheating.
  • the present application provides a foldable device, which includes a first housing, a second housing, a heating unit, a rotating shaft mechanism, a flexible screen and a flexible thermal conductive sheet.
  • the first housing and the second housing are rotationally connected through the rotating shaft mechanism.
  • At least one of the housing and the second housing is provided with a heating unit.
  • the flexible screen includes a first part, a second part and a third part. The first part is installed on the first housing, and there is a first cavity between the first part and the first housing. The second part is installed on the second housing.
  • the flexible thermally conductive sheet is disposed in the space formed by the first chamber, the second chamber and the third chamber. At least part of the flexible thermally conductive sheet located in the first cavity is tightly connected to the first shell. The flexible thermally conductive sheet is arranged along the third cavity. The flexible heat-conducting sheet partially passes through the third chamber and extends into the second chamber. The flexible heat-conducting sheet is slidably matched with the third part and the rotating shaft mechanism, as well as with the second part and the second housing. The flexible thermal conductive sheet is thermally connected to the heating unit, the first shell and the second shell.
  • the heat on the first housing and the second housing can be conducted to each other, and the first housing and the second housing can conduct heat to each other.
  • the heat generated by the heating unit in the second housing can be dissipated to the external environment through the first housing and the second housing.
  • the heat from one of the heating units with a larger amount of heat can be transferred to the other with a smaller amount of heat and a lower temperature. The temperature difference between the two is small, and a heating unit with a large amount of heat is not prone to overheating.
  • the thermal conductive sheet It is no longer necessary to thicken the thermal conductive sheet to improve the heat dissipation performance of a heating unit with a large amount of heat.
  • Flexible heat conduction can be achieved
  • the film is relatively thin.
  • the flexible heat-conducting sheet is slidably matched with the third part and the rotating shaft mechanism, as well as with the second part and the second housing. The parts of the flexible heat-conducting sheet located in the second chamber and the third chamber are not fixed, and the foldable device is in the unfolded state.
  • the part of the flexible heat conductive sheet in the second chamber and the third chamber can slide along the second part and the third part, which can reduce the risk of the foldable device switching between the unfolded state and the folded state.
  • the risk of the flexible thermally conductive sheet being pulled or compressed and wrinkled.
  • the flexible thermally conductive sheet is not easily clamped into the rotating shaft mechanism and the gap between the rotating shaft mechanism and the first and second housings, which can reduce the impact of the flexible thermally conductive sheet on the foldable device.
  • the flexible thermal conductive sheet is relatively smooth when the foldable device is in various states, which can reduce the impact on the flexible screen display.
  • the flexible thermally conductive sheet includes a graphite sheet part and a laminate part.
  • the graphite sheet part is located in the first chamber and is tightly connected to the first shell.
  • the laminate part passes through the third part along the third part. It has three chambers and extends into the second chamber.
  • the laminate part is slidably matched with the third part and the rotating shaft mechanism, as well as with the second part and the second shell.
  • the laminated part includes stacked graphite sheets and an elastic support layer, and the elastic support layer is tightly connected to the graphite sheets.
  • one end of the stacked portion connected to the graphite sheet portion is located in the first chamber, and at least part of the stacked portion located in the first chamber is tightly connected to the first shell.
  • the elastic support layer includes metal, and the rigidity of the metal is greater than the rigidity of the graphite sheet layer.
  • the elastic support layer is tightly connected to the side of the graphite sheet close to the flexible screen.
  • the elastic support layer includes a first end away from the graphite sheet part in the first direction
  • the graphite sheet layer includes a second end away from the graphite sheet part in the first direction
  • the first end protrudes at the second end.
  • the second shell is fastened with a Mylar.
  • the Mylar is located in the second chamber.
  • the Mylar is spaced apart from the second end in the first direction.
  • At least part of the Mylar is convex with the elastic support layer in the thickness direction of the second shell. The part that comes out of the second end overlaps, and the first end slides with the Mylar.
  • the first direction is the direction in which the first housing faces the second housing when the foldable device is in a flat state.
  • the Mylar is Teflon Mylar.
  • the elastic support layer includes a first side and a second side that are opposite in the second direction
  • the graphite sheet layer includes a third side and a fourth side that are opposite in the second direction
  • the first side is adjacent to the third side
  • the second side is adjacent to the fourth side
  • the third side protrudes from the first side
  • the fourth side protrudes from the second side.
  • the width of the portion of the graphite sheet protruding from the first side in the second direction is smaller than the height of the second chamber in the thickness direction of the foldable device and smaller than the height of the third chamber in the thickness direction of the foldable device.
  • the width of the portion of the graphite sheet protruding from the second side in the second direction is smaller than the height of the second chamber in the thickness direction of the foldable device and smaller than the height of the third chamber in the thickness direction of the foldable device.
  • the second direction is the length extension direction of the rotating shaft mechanism.
  • the graphite sheet part and the graphite sheet layer have an integrated structure, and the thickness of the graphite sheet part is greater than the thickness of the graphite sheet layer.
  • the thickness of the elastic support layer is smaller than the thickness of the graphite sheet layer.
  • a first adhesive layer is provided between the graphite sheet layer and the elastic support layer, and the graphite sheet layer and the elastic support layer are bonded and fixed through the first adhesive layer.
  • the projection of the heating unit in the first housing along the thickness direction of the first housing is located along the first portion of the flexible thermally conductive sheet in the first chamber. Within the range of projection in the thickness direction of the shell.
  • a heating unit is provided in the first housing.
  • the heating unit in the first housing generates more heat when operating than the heating unit in the second housing.
  • a lubricating medium is provided between the rotating shaft mechanism and the flexible thermally conductive sheet.
  • a lubricating medium is provided between the third part and the flexible thermally conductive sheet.
  • a lubricating medium is provided between the rotating shaft mechanism and the flexible thermally conductive sheet and between the third part and the flexible thermally conductive sheet.
  • At least part of the flexible thermally conductive sheet located in the first chamber is adhesively fixed to the first shell through a second adhesive layer.
  • a second adhesive layer is provided between the flexible thermally conductive sheet and the first shell, and the flexible thermally conductive sheet is bonded and fixed to the first shell through the second adhesive layer.
  • a second adhesive layer is provided between the flexible thermally conductive sheet and the heating unit in the first housing, and the flexible thermally conductive sheet is bonded and fixed to the heating unit in the first housing through the second adhesive layer. , so that the flexible thermally conductive sheet is tightly connected to the first housing through the second adhesive layer and the heating unit in the first housing.
  • a second adhesive layer is provided between the flexible thermally conductive sheet and the first housing and between the flexible thermally conductive sheet and the heating unit in the first housing.
  • the flexible thermally conductive sheet is bonded through the second adhesive layer.
  • the layers are respectively bonded and fixed with the first shell and the heating unit in the first shell.
  • the portion of the flexible thermally conductive sheet located in the first chamber is provided with positioning holes
  • the first housing is provided with positioning protrusions corresponding to the positioning holes, and the positioning protrusions extend into the corresponding positioning holes.
  • the first part is bonded and fixed to the first shell through a first adhesive strip
  • the second part is bonded and fixed to the second shell through a second adhesive strip.
  • the first adhesive strip is arranged on the edge of the first part, and the second adhesive strip is arranged on the edge of the second part.
  • Figure 1 is a schematic view of a foldable device in a folded state according to an embodiment of the present application
  • Figure 2 is a schematic view of a foldable device provided by an embodiment of the present application when it is in a flattened state;
  • Figure 3 is a schematic diagram of one side of a foldable device provided with a flexible screen when it is in a flat state according to an embodiment of the present application;
  • Figure 4 is a schematic diagram of another foldable device provided by an embodiment of the present application when the first back cover is hidden when it is in a flat state;
  • Figure 5 is a schematic diagram of another foldable device provided by an embodiment of the present application when the flexible screen is hidden when it is in a flat state;
  • Figure 6 is a schematic diagram of yet another foldable device in a folded state provided by an embodiment of the present application.
  • Figure 7 is a schematic diagram of an intermediate state during switching between a folded state and a flattened state of yet another foldable device provided by an embodiment of the present application;
  • Figure 8 is a schematic diagram of another foldable device in a flattened state according to an embodiment of the present application.
  • Figure 9 is a schematic diagram of one side of the flexible thermally conductive sheet of another foldable device in the thickness direction of the flexible thermally conductive sheet according to the embodiment of the present application;
  • Figure 10 is a schematic diagram of the other side of the flexible thermally conductive sheet of another foldable device provided in the embodiment of the present application in the thickness direction of the flexible thermally conductive sheet;
  • Figure 11 is a schematic view of the intersection of the graphite sheet part and the laminate part of the flexible thermal conductive sheet of another foldable device in the second direction according to the embodiment of the present application;
  • Figure 12 is a schematic diagram of one side of the intersection of the graphite sheet part and the laminate part of the flexible thermal conductive sheet of another foldable device in the second direction according to the embodiment of the present application;
  • Figure 13 is a schematic diagram of a cross-section perpendicular to the second direction at the third part and the laminate part of yet another foldable device provided by the embodiment of the present application;
  • Figure 14 is an enlarged view of part A in Figure 5;
  • Figure 15 is a schematic diagram of another foldable device provided by an embodiment of the present application when it is in a flat state and is equipped with a flexible screen on one side after hiding the flexible screen and the flexible thermal conductive sheet;
  • Figure 16 is a schematic diagram of the cooperation between the laminate part and Mylar during the process of switching from the flattened state to the folded state of another foldable device provided by the embodiment of the present application;
  • Figure 17 is an enlarged view of part B in Figure 10;
  • Figure 18 is a schematic diagram of one side of another foldable device provided with a flexible screen when it is in a flat state according to an embodiment of the present application;
  • Figure 19 is a schematic diagram of one side of a foldable device provided with a flexible screen when it is in a flat state according to an embodiment of the present application;
  • Figure 20 is a schematic diagram of one side of another foldable device provided with a flexible screen when it is in a flat state according to an embodiment of the present application;
  • FIG. 21 is a schematic diagram of one side of another foldable device provided with a flexible screen when it is in a flat state according to an embodiment of the present application.
  • Graphite sheet layer 622. Elastic support layer; 623. First end; 624. Second end; 625. Section One side; 626, second side; 627, third side; 628, fourth side; 629, first adhesive layer; 700. Lubricating medium; 800, Myra.
  • Embodiments of the present application provide a foldable device that can change its shape by folding and unfolding to meet the needs of users in different scenarios. For example, when carrying, it can be folded to reduce the size of the foldable device; when in use, it can be flattened to increase the size of the screen used for display or operation. It can be understood that the foldable device can also be called user equipment (UE) or terminal (terminal), etc.
  • UE user equipment
  • terminal terminal
  • Foldable devices provided by embodiments of the present application may include, but are not limited to, tablet computers (portable android device, PAD), personal digital assistant (personal digital assistant, PDA), handheld devices with wireless communication functions, computing devices, vehicle-mounted devices, Wearable devices, virtual reality (VR) terminal devices, augmented reality (AR) terminal devices, wireless terminals in industrial control, wireless terminals in self-driving, remote Wireless terminals in remote medical, wireless terminals in smart grid, wireless terminals in transportation safety, wireless terminals in smart city, and smart home wireless terminals and other mobile terminals or fixed terminals.
  • the embodiments of this application are described by taking a handheld device with a wireless communication function as an example.
  • the handheld device with a wireless communication function may be a mobile phone.
  • FIG. 1 is a schematic view of a foldable device in a folded state according to an embodiment of the present application.
  • the foldable device provided by the embodiment of the present application includes a first housing 110, a second housing 120 and a rotating shaft mechanism 200.
  • the first housing 110 and the second housing 120 are respectively installed on the rotating shaft mechanism 200.
  • the first housing 110 and the second housing 120 are rotationally connected through a rotating shaft mechanism 200 so that the foldable device can be switched between a flattened state and a folded state.
  • first housing 110 and the second housing 120 rotate relatively to overlap each other, the foldable device is in a folded state. At this time, the first housing 110 and the second housing 120 can be parallel to each other.
  • the two structural members may not be absolutely parallel to each other, and a slight deviation is allowed.
  • the first housing 110 and the second housing 120 rotate relative to each other until the angle between them is approximately 180°, the foldable device is in a flat state.
  • the angle between the two structural members referred to in this application document is approximately 180°. Due to design tolerances and other reasons, it may not be absolutely 180°, and a slight deviation is allowed, such as 165°. , 177° or 185°.
  • foldable devices also have intermediate states in the process of switching between folded and flat states.
  • the first housing 110 may include a first middle frame 112 and a first back cover 113.
  • the first back cover 113 is fastened to one side of the first middle frame 112 in the thickness direction.
  • the second housing 120 It may include a second middle frame 122 and a second back cover 123.
  • the second back cover 123 is fastened to one side of the second middle frame 122 in the thickness direction.
  • the first middle frame 112 and the second middle frame 113 are respectively installed on On both sides of the rotating shaft mechanism 200 , the first middle frame 112 and the second middle frame 113 are rotationally connected through the rotating shaft mechanism 200 .
  • the angle between the first middle frame 112 and the second middle frame 122 is approximately 180°
  • the angle between the first back cover 113 and the second back cover 123 is approximately 180°.
  • the first middle frame 112 and the second middle frame 122 may be parallel to each other
  • the first back cover 113 and the second back cover 123 may be parallel to each other
  • the first back cover 113 is located on the first middle frame.
  • 112 is on the side away from the second middle frame 122
  • the second back cover 123 is located on the side of the second middle frame 122 away from the first middle frame 112 .
  • FIG. 2 is a schematic view of a foldable device in a flattened state according to an embodiment of the present application.
  • the foldable device provided by the embodiment of the present application also includes a flexible screen 300 installed on the first housing 110 and the second housing 120 .
  • the flexible screen 300 is installed on the surface of the same side of the first housing 110 and the second housing 120. After the flexible screen 300 is installed on the first housing 110 and the second housing 120, the rotating shaft mechanism 200 can be used. Support flexible screen 300.
  • the first middle frame 112 is away from the first back cover.
  • the side of the second middle frame 122 facing away from the second back cover 123 is used to install the flexible screen 300 .
  • the flexible screen 300 can be used for image display or as a virtual keyboard for inputting information.
  • the functions of the flexible screen 300 can be determined according to specific application scenarios.
  • the flexible screen 300 may be an organic light-emitting diode (OLED) display screen, an active matrix organic light-emitting diode, or an active-matrix organic light-emitting diode (active-matrix organic light-emitting diode, AMOLED) display, mini organic light-emitting diode (mini organic light-emitting diode) display, micro light-emitting diode (micro light-emitting diode) display, micro organic light-emitting diode (micro organic light-emitting diode) display, quantum dot luminescence diode (quantum dot light-emitting diode) display screen, etc.
  • OLED organic light-emitting diode
  • AMOLED active-matrix organic light-emitting diode
  • mini organic light-emitting diode mini organic light-emitting diode
  • micro light-emitting diode micro light-emitting diode
  • the flexible screen 300 includes a first part 310, a second part 320 and a third part 330.
  • the first part 310 is installed on the first housing 110
  • the second part 320 is installed on the second housing 120.
  • the third part 330 is opposite to the rotating shaft mechanism 200 . It can be understood that the first part 310 can be installed on the first housing 110 by bonding, clamping, etc.
  • the second part 320 can be installed on the second housing 120 by bonding, clamping, etc.
  • the third part 320 can be installed on the second housing 120 by bonding, clamping, etc.
  • Both sides of the portion 330 are connected to the first portion 310 and the second portion 320 respectively.
  • the first housing 110 may include a first middle frame 112 and/or a first back cover 113
  • the second housing 120 may include a second middle frame 122 and/or a second back cover 123
  • the first part 310 can be installed on the side of the first middle frame 112 away from the first back cover 113
  • the second part 320 can be installed on the side of the second middle frame 122 away from the second back cover 123 .
  • the first part 310 and the second part 320 can rotate with the first housing 110 and the second housing 120, and the third part 330 is bent.
  • the first part 310 and the second part 320 may not be bent, or the bending angle may be very small and almost flat.
  • the bent third part 330 is flattened so that the first part 310, the second part 320 and the third part 330 are in the same plane (a slight deviation is allowed).
  • FIG. 3 is a schematic diagram of one side of a foldable device provided with a flexible screen when it is in a flat state according to an embodiment of the present application.
  • At least one of the first housing 110 and the second housing 120 of the foldable device provided by the embodiment of the present application is further provided with a heating unit 400 .
  • the heating unit 400 may be provided on the circuit board in the first housing 110 , and the heating unit 400 may not be provided in the second housing 120 ; the heating unit may also be provided on the circuit board in the second housing 120 400, the heating unit 400 may not be provided in the first housing 110; the heating unit 400 may also be provided on both the circuit board in the first housing 110 and the circuit board in the second housing 120.
  • FIG. 4 is a schematic diagram of another foldable device provided by an embodiment of the present application when the first back cover is hidden when it is in a flat state.
  • the heating unit 400 in the first housing 110 may be disposed on the first middle frame 112 and the first rear cover.
  • the circuit board provided with the heating unit 400 in the first housing 110 can be installed in the accommodation cavity of the first middle frame 112, and the heating unit 400 can be connected with the first middle frame 112 and the first back cover 113.
  • Thermal connection Specifically, the heating unit 400 in the first housing 110 can be in contact with or close to at least one of the first middle frame 112 and the first back cover 113 . 113 Thermal connection.
  • the heating unit 400 in the second housing 120 may be disposed in the space formed by the second middle frame 122 and the second back cover 123.
  • the circuit board provided with the heating unit 400 in the second housing 120 can be installed in the accommodation cavity of the second middle frame 122 , and the heating unit 400 can be thermally connected to the second middle frame 122 and the second back cover 123 .
  • the heating unit 400 in the second housing 120 can be in contact with or close to at least one of the second middle frame 122 and the second back cover 123 . 123 thermal connection.
  • the heating unit 400 is a component that generates heat or a module composed of multiple components.
  • the heating unit 400 can be a central processing unit (CPU), a graphics processing unit (GPU) or other chips, or it can be a power supply, a resistor, a camera or other devices, or it can be an integrated circuit. Motherboard modules with various components.
  • One or more heating units 400 may be disposed in the first housing 110 , and one or more heating units 400 may be disposed in the second housing 120 .
  • the components in the first housing 110 and the second housing 120 can be electrically connected through a flexible circuit board, and the flexible circuit board can be connected by a flexible circuit board.
  • the first housing 110 extends through the rotating shaft mechanism 200 to the second housing 120 so that the components in the cavities of the first housing 110 and the second housing 120 are electrically connected.
  • the flexible circuit board may be disposed on the first middle frame. 112 and the second middle frame 122 are away from the side of the flexible screen 300 . In other words, the first middle frame 112 and the second middle frame 122 may be located between the flexible screen 300 and the flexible circuit board.
  • the heat generated by the heating unit 400 provided in the cavity of the first housing 110 is conducted to the first housing 110, and then the heat is dissipated to the external environment through the first housing 110.
  • the heat generated by the heating unit 400 provided in the cavity of the second housing 120 is conducted to the second housing 120 , and then the heat is dissipated to the external environment through the second housing 120 .
  • foldable devices in which thermally conductive sheets are respectively provided in the first housing 110 and the second housing 120 foldable devices in the related art have thermally conductive sheets independently provided in the first housing 110 and the second housing 120 .
  • the thermally conductive fins in the first housing 110 do not extend through or across the rotating shaft mechanism 200 into the second housing 120
  • the thermally conductive fins in the second housing 120 do not extend through or across the rotating shaft mechanism 200 .
  • 200 extends into the first housing 110 .
  • the thermal conductive sheet in the first housing 110 can be used to quickly and evenly distribute the heat generated by the heating unit 400 in the first housing 110
  • the heat conduction sheet in the second housing 120 can be used to quickly and evenly conduct the heat generated by the heating unit 400 in the second housing 120 to various locations on the first housing 110 . various locations.
  • the heat on the first housing 110 and the second housing 120 cannot be conducted to each other, and the heat generated by the heating unit 400 in the first housing 110 is dissipated through the first housing 110 , the heat generated by the heating unit 400 in the second housing 120 is dissipated through the second housing 120.
  • the heat generated by the heating units 400 in the first casing 110 and the second casing 120 is often unequal, and the one with the larger heating unit 400 has a larger amount of heat and a higher temperature.
  • the heat on the other one is smaller and the temperature is lower; or when the heating unit 400 is not provided in one of the first housing 110 and the second housing 120 , the heat on the one with the heating unit 400 is larger and the temperature is lower.
  • the one with higher temperature, the other with less heat and lower temperature Due to the limited mutual heat conduction capabilities of the first housing 110 and the second housing 120 in the prior art, the temperature difference between the first housing 110 and the second housing 120 is large. Among the bodies 120, the one with greater heat and higher temperature is prone to overheating problems.
  • the motherboard module generates a large amount of heat during operation.
  • the motherboard module is disposed in the first housing 110, the heat generated by the motherboard module cannot be effectively dissipated through the first housing 110 and the second housing 120.
  • the first The housing 110 is susceptible to overheating.
  • FIG. 5 is a schematic diagram of another foldable device provided by an embodiment of the present application when the flexible screen is hidden when it is in a flat state.
  • the foldable device provided by the embodiment of the present application also includes a flexible thermally conductive sheet 600 .
  • the flexible thermally conductive sheet 600 is a thermally conductive sheet with bendable characteristics.
  • the flexible thermally conductive sheet 600 can be a metal sheet such as a thin copper sheet or a thin aluminum sheet, or a thermally conductive sheet with a composite structural layer such as graphite or thermally conductive rubber.
  • the flexible thermally conductive sheet 600 can be a thermally conductive sheet including a graphite layer and an elastic metal layer. piece.
  • FIG. 6 is a schematic diagram of another foldable device provided by an embodiment of the present application when it is in a folded state.
  • FIG. 7 is a diagram of another foldable device provided by an embodiment of the present application during the switching process between the folded state and the flattened state.
  • FIG. 8 is a schematic diagram of yet another foldable device provided by an embodiment of the present application when it is in a flat state.
  • first chamber 510 between the first part 310 of the flexible screen 300 and the first housing 110
  • second part 320 of the flexible screen 300 is connected to the second part of the flexible screen 300
  • second chamber 520 between the casing 120
  • third chamber 530 between the third part 330 of the flexible screen 300 and the rotating shaft mechanism 200
  • both ends of the third chamber 530 are respectively connected with the first chamber 510 and the first chamber 510 .
  • the second chamber 520 is connected.
  • the flexible thermally conductive sheet 600 is disposed in the space formed by the first chamber 510, the second chamber 520 and the third chamber 530.
  • At least part of the flexible thermally conductive sheet 600 located in the first chamber 510 is fastened to the first housing 110.
  • the flexible thermally conductive sheet 600 passes through the third chamber 530 along the third part 330 and extends into the second chamber 520.
  • the flexible thermally conductive sheet 600 is connected with the third part 330 and the rotating shaft mechanism 200 as well as with the second part 320 and the second chamber 520.
  • the two housings 120 are both slidingly matched.
  • the flexible thermally conductive sheet 600 is thermally connected to the heating unit 400, the first housing 110 and the second housing 120.
  • the flexible thermally conductive sheet 600 may be in contact with the first housing 110 or disposed close to the first housing 110 so that the flexible thermally conductive sheet 600 is thermally connected to the first housing 110; the flexible thermally conductive sheet 600 may be thermally connected to the second housing 110.
  • the body 120 is in contact with or disposed close to the second housing 120 so that the flexible thermally conductive sheet 600 is thermally connected to the second housing 120 .
  • the first housing 110 and the second housing 120 are thermally connected through the flexible thermally conductive sheet 600 , and the heat on the first housing 110 and the second housing 120 can be transferred to each other through the flexible thermally conductive sheet 600 .
  • the heating unit 400 in the first housing 110 can be in contact with the flexible thermal conductive sheet 600 or placed close to the flexible thermal conductive sheet 600, so that the heat generating unit 400 in the first housing 110 can be
  • the unit 400 is thermally connected to the flexible thermally conductive sheet 600 .
  • the heating unit 400 in the first housing 110 can be thermally connected to the first housing 110 through the flexible thermal conductive sheet 600 .
  • the heating unit 400 in the first housing 110 can also be in contact with the first housing 110 or placed close to the first housing 110, so that the heating unit 400 in the first housing 110 is thermally connected to the first housing 110.
  • the heating unit 400 in a housing 110 can be thermally connected to the flexible heat conductive sheet 600 through the first housing 110 .
  • the body 110 is configured so that the heating unit 400 in the first housing 110 is thermally connected to the first housing 110 and the flexible thermally conductive sheet 600 respectively.
  • the heating unit 400 in the first housing 110 can first transfer heat to the first housing 110, and then transfer the heat to the flexible thermally conductive sheet 600 through the first housing 110; the first housing 110
  • the heating unit 400 inside can also transfer heat to the flexible thermally conductive sheet 600 first, and then transfer the heat to the first housing 110 through the flexible thermally conductive sheet 600.
  • the heating unit 400 in the first housing 110 can also transfer heat to the flexible thermally conductive sheet 600 and the first housing 110 respectively.
  • the heating unit 400 in the second housing 120 can be connected to the flexible conductor.
  • the heat sheet 600 is in contact with or disposed close to the flexible heat conductive sheet 600 so that the heating unit 400 in the second housing 120 is thermally connected to the flexible heat conductive sheet 600 .
  • the heating unit 400 in the second housing 120 can be thermally connected to the second housing 120 through the flexible thermal conductive sheet 600 .
  • the heating unit 400 in the second housing 120 can also be in contact with the second housing 120 or placed close to the second housing 120, so that the heating unit 400 in the second housing 120 is thermally connected to the second housing 120.
  • the heating unit 400 in the second housing 120 can be thermally connected to the flexible heat conductive sheet 600 through the second housing 120 .
  • the heating unit 400 in the second housing 120 contact with the flexible thermal conductive sheet 600 or be placed close to the flexible thermal conductive sheet 600, and to make the heating unit 400 in the second housing 120 contact with the second housing 120 or be close to the second housing.
  • the body 120 is configured so that the heating unit 400 in the second housing 120 is thermally connected to the second housing 120 and the flexible thermally conductive sheet 600 respectively.
  • the heating unit 400 in the second housing 120 can first transfer heat to the second housing 120, and then transfer the heat to the flexible thermally conductive sheet 600 through the second housing 120; the second housing 120
  • the heating unit 400 inside can also transfer heat to the flexible thermally conductive sheet 600 first, and then transfer the heat to the second housing 120 through the flexible thermally conductive sheet 600.
  • the heating unit 400 in the second housing 120 can also transfer heat to the flexible thermally conductive sheet 600 and the second housing 120 respectively.
  • the projection of the heating unit 400 in the thickness direction of the foldable device may be entirely or partially located within the range of the projection of the flexible thermally conductive sheet 600 in the thickness direction of the foldable device.
  • the projection of the heating unit 400 in the first housing 110 in the thickness direction of the foldable device may not be on the flexible thermally conductive sheet. 600 is within the range of projection in the thickness direction of the foldable device.
  • the projection of the heating unit 400 in the second housing 120 in the thickness direction of the foldable device may not be on the flexible thermally conductive sheet. 600 is within the range of projection in the thickness direction of the foldable device.
  • the end of the flexible thermally conductive sheet 600 located in the second chamber 520 is a free end and can slide back and forth between the second part 320 and the second housing 120 .
  • the flexible thermally conductive sheet 600 thermally connects the first housing 110 and the second housing 120, and the heat on the first housing 110 and the second housing 120 can be conducted to each other.
  • the heat generated by the heating unit 400 inside can be dissipated to the external environment through the first housing 110 and the second housing 120 .
  • the heat from one of the heating units 400 that generates a larger amount of heat can be transferred to the other one that has a smaller amount of heat and a lower temperature.
  • the first casing 110 and the second casing 120 The temperature difference between the second shells 120 is small, and the one equipped with the heating unit 400 with a large amount of heat is not prone to overheating.
  • the flexible thermally conductive sheet 600 is slidably matched with the third part 330 and the rotating shaft mechanism 200 as well as with the second part 320 and the second housing 120 .
  • the flexible thermally conductive sheet 600 is located in the second chamber 520 and the third chamber 530 . It is not fixed. When the foldable device is switching between the unfolded state and the folded state, the portion of the flexible thermally conductive sheet 600 in the second chamber 520 and the third chamber 530 can slide along the second part 320 and the third part 330.
  • the flexible thermally conductive sheet 600 is not easily sandwiched between the rotating shaft mechanism 200 and the rotating shaft mechanism 200 and the first housing 110 In the gap between the foldable device and the second housing 120, the impact of the flexible thermally conductive sheet 600 on the opening and closing of the foldable device can be reduced.
  • the flexible thermally conductive sheet 600 is relatively smooth when the foldable device is in various states, which can reduce the impact on the flexibility of the foldable device. Screen 300 shows the impact.
  • the first middle frame 112 can be The frame 112 is spaced apart from the first part 310 on one side facing the first part 310 , the second middle frame 122 is spaced apart from the second part 320 on a side facing the second part 320 , and the first middle frame 112 is spaced apart from the first part 310 on a side thereof.
  • a first chamber 510 is formed between the first parts 310
  • a second chamber 520 is formed between the side of the second middle frame 122 facing the second part 320 and the second part 320 .
  • the first part 310 and the second part 320 can pass through respectively.
  • the connecting frame, adhesive strip and other structures are connected to the first middle frame 112 and the second middle frame 122, and separate the first chamber 510 and the second chamber 520 from the first middle frame 112 and the second middle frame 122 respectively;
  • a step structure for forming the first chamber 510 with the first part 310 may also be provided on the side of the first middle frame 112 facing the first part 310
  • a step structure may be provided on the side of the second middle frame 112 facing the second part 320 .
  • the step structure of the second chamber 520 is formed with the second portion 320 .
  • the first middle frame 112 and the second middle frame 122 may be located between the flexible circuit board and the flexible thermally conductive sheet 600 .
  • the foldable device may include a first housing 110 and a second housing 120 provided on both sides of a rotating shaft mechanism 200.
  • the first housing 110 and the second housing 120 may rotate toward each other to stack and stack. Rotate back to the same plane (allowing a few (allowable deviation), at this time, the foldable device can be folded into two layers.
  • the foldable device may also include two second housings 120 arranged side by side.
  • a first housing 110 is provided between the two second housings 120.
  • Each second housing 120 is adjacent to the first housing 110.
  • the two sides are rotationally connected through a rotating shaft mechanism 200.
  • the two second housings 120 can rotate relative to the first housing 110 to stack, and the two second housings 120 can also rotate relative to the first housing 110.
  • the first housing 110 is rotated back to be coplanar with the first housing 110 (a slight deviation is allowed).
  • the foldable device can be folded into three layers.
  • the flexible screen 300 includes two second parts 320 respectively installed on the two second housings 120 and two third parts 330 respectively opposite to the two rotating shaft mechanisms 200.
  • Each second housing 120 is connected with its There are second chambers 520 between the second parts 320 installed on the rotating shaft mechanism 200 and a third chamber 530 between each rotating shaft mechanism 200 and its opposite third part 330 .
  • the two ends of the flexible thermally conductive sheet 600 can respectively extend along the two third parts 330 into the two second cavities 520 on both sides of the first cavity 510.
  • the two second parts 320 and the two second shells 120 are slidingly matched, and the flexible thermally conductive sheet 600 is thermally connected to the two second shells 120.
  • the first housing 110 may further include a first mounting plate 114 provided on the side of the first middle frame 112 facing the first part 310 , and the first mounting plate 114 is connected to the first The middle frame 112 is tightly connected, and the first part 310 is installed on the first mounting plate 114.
  • the first mounting plate 114 is spaced apart from the first part 310.
  • a first cavity 510 is formed between the first mounting plate 114 and the first part 310.
  • the flexible The portion of the thermally conductive sheet 600 located in the first cavity 510 is tightly connected to the first mounting plate 114, and the first mounting plate 114 is thermally connected to the first middle frame 112, so that the first middle frame 112 is thermally connected to the flexible thermally conductive sheet 600. .
  • the second housing 120 may also include a second mounting plate 124 located on the side of the second middle frame 122 facing the second part 320.
  • the second mounting plate 124 is tightly connected to the second middle frame 122, and the second part 320 is installed on the second middle frame 122.
  • On the second mounting plate 124 the second mounting plate 124 is spaced apart from the second part 320.
  • a second cavity 520 is formed between the second mounting plate 124 and the second part 320.
  • the flexible thermal conductive sheet 600 is located in the second cavity 520.
  • the second mounting plate 124 is thermally connected to the second middle frame 122 , so that the second middle frame 122 is thermally connected to the flexible thermally conductive sheet 600 .
  • the flexible thermally conductive sheet 600 is easily connected to the first housing 110 .
  • the flexible thermally conductive sheet 600 becomes relatively flat after being bonded to the first mounting plate 114 , thereby reducing the pulling of the flexible thermally conductive sheet 600 .
  • the flexible thermally conductive sheet 600 slides with the second housing 120 through the second mounting plate 124 more smoothly.
  • the heating unit 400 in the first housing 110 can be disposed in the space formed by the first mounting plate 114, the first middle frame 112 and the first back cover 113.
  • the heating unit 400 in the first housing 110 The flexible thermally conductive sheet 600 can be thermally connected through the first middle frame 112 and the first mounting plate 114 .
  • the heating unit 400 in the second housing 120 can be disposed in the space formed by the second mounting plate 124, the second middle frame 122 and the second back cover 123.
  • the heating unit 400 in the second housing 120 can pass through the second middle frame.
  • the frame 122 and the second mounting plate 124 are thermally connected to the flexible thermally conductive sheet 600 .
  • first middle frame 112 and the first mounting plate 114 may be an integral structure; the second middle frame 122 and the second mounting part 124 may be an integral structure.
  • the projection of the heating unit 400 in the first housing 110 along the thickness direction of the first housing 110 is located on the side of the flexible thermally conductive sheet 600 in the first chamber.
  • the portion within 510 is within the range of projection along the thickness direction of the first housing 110 .
  • the heat conduction efficiency between the heating unit 400 in the first housing 110 and the flexible heat conducting sheet 600 is relatively high, and the heat generated by the heating unit 400 in the first housing 110 can be efficiently transferred to the flexible heat conducting sheet 600 to pass through.
  • the flexible thermally conductive sheet 600 transfers heat to the second housing 120 .
  • the rotating shaft mechanism 200 may include a main shaft assembly 210 , a first folding assembly 220 and a second folding assembly 230 .
  • the first folding assembly 220 and the second folding assembly 230 are respectively installed on two opposite sides of the main shaft assembly 210 .
  • the first folding component 220 and the second folding component 230 can be rotationally connected with the main shaft component 210 respectively, the first housing 110 can be tightly connected or slidingly connected with the first folding component 220, and the second housing 120 can be connected with the second The folding component 230 is tightly connected or slidingly connected, the first housing 110 can be rotationally connected to the main shaft assembly 210 through the first folding component 220, the second housing 120 can be rotationally connected to the main shaft assembly 210 through the second folding component 230, and the third The part 330 is opposite to the first folding component 220, the spindle component 210 and the second folding component 230.
  • the first folding component 220, the spindle component 210 and the second folding component 230 can respectively support corresponding positions on the third part 330.
  • the flexible heat conductive sheet 600 is in sliding fit with the first folding assembly 220 , the main shaft assembly 210 and the second folding assembly 230 .
  • the heating unit 400 is provided in the first housing 110 .
  • the heating unit 400 is also provided in the second housing 120
  • the heat generated by the heating unit 400 in the first housing 110 is greater than the heat generated by the heating unit 400 in the second housing 120 during operation.
  • the thermal connection between the flexible thermally conductive sheet 600 and the first housing 110 is relatively stable, which is conducive to quickly and effectively conducting the heat generated by the heating unit 400 with a large amount of heat in the first housing 110 to the flexible thermally conductive sheet 600 , the heat can be conducted to the second housing through the flexible thermally conductive sheet 600 and dispersed relatively uniformly throughout the first housing 110 .
  • At least part of the flexible thermally conductive sheet 600 located in the first cavity 510 can be adhesively fixed on the first housing 110 through the second adhesive layer 511 .
  • the second adhesive layer 511 may be formed of thermally conductive adhesive.
  • a second adhesive layer 511 is provided between the flexible thermally conductive sheet 600 and the first housing 110 , and the flexible thermally conductive sheet 600 is bonded and fixed to the first housing 110 through the second adhesive layer 511 .
  • the fastening connection between the flexible thermally conductive sheet 600 and the first shell 110 is relatively stable, the flexible thermally conductive sheet 600 and the first shell 110 are not easily displaced, and the tight connection between the flexible thermally conductive sheet 600 and the first shell 110 The thermal connection is stable.
  • the flexible thermally conductive sheet 600 can be in contact with the heating unit 400 in the first housing 110 , or the flexible thermally conductive sheet 600 can be brought close to the heating unit 400 in the first housing 110 , so that the heating unit 400 in the first housing 110
  • the heat generated by 400 can be transferred to the flexible thermally conductive sheet 600; the heating unit 400 in the first housing 110 can also be brought into contact with or close to the first housing 110, and the heating unit 400 in the first housing 110 can be The heat generated by 400 is transferred to the flexible thermally conductive sheet 600 through the first housing 110 .
  • a second adhesive layer 511 can be disposed between the flexible thermally conductive sheet 600 and the first mounting plate 114 , and the flexible thermally conductive sheet 600 passes through the second The adhesive layer 511 is adhered and fixed to the first mounting plate 114 .
  • a second adhesive layer 511 may also be provided between the flexible thermally conductive sheet 600 and the heating unit 400 in the first housing 110 , and the flexible thermally conductive sheet 600 is connected to the first housing 110 through the second adhesive layer 511
  • the heating unit 400 inside is bonded and fixed, so that the flexible thermally conductive sheet 600 is tightly connected to the first housing 110 through the second adhesive layer 511 and the heating unit 400 inside the first housing 110 .
  • the relative position between the flexible thermally conductive sheet 600 and the heating unit 400 in the first housing 110 is stable, which is conducive to continuous and stable transfer of the heat generated by the heating unit 400 in the first housing 110 to the flexible thermally conductive sheet 600 .
  • the flexible thermally conductive sheet 600 can be in contact with the first housing 110 , or the flexible thermally conductive sheet 600 can be brought close to the first housing 110 , so that the heat on the flexible thermally conductive sheet 600 can be transferred to the first housing 110 .
  • the heating unit 400 in the first housing 110 may be in contact with or close to the first housing 110 so that the heating unit 400 in the first housing 110 is thermally connected to the first housing.
  • the first housing 110 The heating unit 400 inside can also be thermally connected to the first housing 110 through the flexible thermal conductive sheet 600 .
  • a second adhesive layer 511 is provided between the flexible thermally conductive sheet 600 and the first housing 110 and between the flexible thermally conductive sheet 600 and the heating unit 400 in the first housing 110.
  • the flexible thermally conductive sheet 600 passes through
  • the second adhesive layer 511 is adhesively fixed to the first housing 110 and the heating unit 400 in the first housing 110 respectively.
  • the flexible thermally conductive sheet 600 is close to the first housing 110 and the heating unit 400 in the first housing 110 , and the flexible thermally conductive sheet 600 can be in contact with the first housing 110 and the heating unit 400 in the first housing 110 .
  • the flexible thermally conductive sheet 600 can also perform heat exchange with the first housing 110 and the heating unit 400 through the second adhesive layer 511 .
  • the fastening connection between the flexible thermally conductive sheet 600 and the first housing 110 is relatively stable, the flexible thermally conductive sheet 600 and the first housing 110 are not easily displaced, and the relative position between the flexible thermally conductive sheet 600 and the heating unit 400 is relatively stable.
  • the stable position facilitates the continuous and stable transfer of heat generated by the heating unit 400 in the first housing 110 to the flexible thermal conductive sheet 600, and also facilitates the continuous and stable transfer of heat on the flexible thermal conductive sheet 600 to the first housing 110.
  • FIG. 9 is a schematic diagram of one side of the flexible thermally conductive sheet of another foldable device provided by an embodiment of the present application in the thickness direction of the flexible thermally conductive sheet.
  • FIG. 10 is a schematic view of another flexible thermally conductive sheet of a foldable device provided by an embodiment of the present application.
  • Figure 11 shows the intersection of the graphite sheet portion and the laminate portion of the flexible thermally conductive sheet of yet another foldable device provided by an embodiment of the present application in the second direction.
  • the first direction is the direction in which the first housing 110 faces the second housing 120 when the foldable device is in a flat state
  • the second direction is the length extension direction of the rotating shaft mechanism 200 .
  • the flexible thermally conductive sheet 600 includes a graphite sheet portion 610 and a stacked portion 620 distributed along the first direction.
  • the graphite sheet portion 610 is located at Inside the first chamber 510 and tightly connected to the first housing 110, the laminated portion 620 passes through the third chamber 530 along the third portion 330 and extends into the second chamber 520.
  • the laminated portion 620 and Part 3 330 and the axis The mechanism 200 is in a sliding fit with the second portion 320 and the second housing 120 .
  • the laminated part 620 includes a stacked graphite sheet layer 621 and an elastic support layer 622. The elastic support layer 622 and the graphite sheet layer 621 are tightly connected.
  • the graphite sheet part 610 and the graphite sheet layer 621 may be an integral structure.
  • the thermal conductivity of the flexible thermal sheet 600 is relatively high, which is beneficial to improving the heat dissipation performance of the foldable device and making the flexible thermal sheet 600 thinner and lighter.
  • the laminated part 620 includes a graphite sheet layer 621 and an elastic support layer 622.
  • the elastic support layer 622 can support the graphite sheet layer 621 to flatten the graphite sheet layer 621 and drive the graphite sheet layer 621 to slide. In this way, the graphite layer 621 can be further reduced.
  • the risk of wrinkles in the sheet layer 621 during the sliding process makes it difficult for the flexible thermally conductive sheet 600 to be clamped into the rotating shaft mechanism 200 and the gap between the rotating shaft mechanism 200 and the first housing 110 and the second housing 120 , which can reduce the risk of the flexible thermally conducting sheet 600 Effect on opening and closing of foldable devices.
  • the flexible thermally conductive sheet 600 is relatively smooth when the foldable device is in various states, which can reduce the impact on the display of the flexible screen 300 .
  • the elastic support layer 622 can be bent along with the third part 330 when the foldable device is switched from a flat state to a folded state, and can be bent along with the third portion 330 when the foldable device is switched from a folded state to a flat state. Part 330 is restored to flatness.
  • the elastic support layer 622 may include elastic plastic or elastic metal.
  • one end of the laminated part 620 connected to the graphite sheet part 610 is located in the first chamber 510 , and at least part of the laminated part 620 located in the first chamber 510 is tightly connected to the first shell 110 . In this way, the risk of damage to the graphite sheet portion 610 or delamination of the stacked portion 620 due to interaction between the end of the stacked portion 620 connected to the graphite sheet portion 610 and the graphite sheet portion 610 can be reduced.
  • the portion of the stacked portion 620 located in the first chamber 510 is fixedly connected to the first middle frame 112 or the first mounting plate 114.
  • the stacked portion 620 is The portion of the layer portion 620 that is fixedly connected to the first middle frame 112 or the first mounting plate 114 may not be bent, which is beneficial to improving the reliability of the portion of the laminated portion 620 that is fixedly connected to the first middle frame 112 or the first mounting plate 114 sex.
  • the elastic support layer 622 includes metal, and the rigidity of the metal is greater than the rigidity of the graphite sheet.
  • the elastic support layer 622 can also have a certain thermal conductive effect, which is beneficial to improving the thermal conductive performance of the flexible thermally conductive sheet 600.
  • the elastic support layer 622 has stable performance and high strength, and is not easily damaged during reciprocating sliding.
  • the metal can be copper sheets, aluminum sheets, steel sheets, etc.
  • a positioning hole 611 is provided in the portion of the flexible thermally conductive sheet 600 located in the first chamber 510, and the first housing 110 is provided with a positioning protrusion corresponding to the positioning hole 611. (not shown), the positioning protrusion extends into the corresponding positioning hole 611.
  • the positioning protrusion can be disposed in the first cavity 510, and the positioning protrusion is tightly connected with the first housing 110. After the positioning protrusion extends into the corresponding positioning hole 611, the flexible thermal conductive sheet 600 can be Positioned with the first housing 110 .
  • the flexible thermally conductive sheet 600 can be accurately installed at the preset position of the first housing 110 during assembly, and the flexible thermally conductive sheet 600 will be more stable and difficult to be displaced after being assembled on the first housing 110 .
  • the positioning hole 611 may be opened in the graphite sheet part 610.
  • Positioning holes 611 may also be provided in the portion of the stacked portion 620 located in the first chamber 510
  • a plurality of positioning holes 611 may be provided on the flexible thermally conductive sheet 600, and the positioning holes 611 may be through holes.
  • the positioning protrusion may be provided on the first mounting plate.
  • the graphite sheet part 610 and the graphite sheet layer 621 have an integrated structure, and the thickness of the graphite sheet part 610 may be greater than the thickness of the graphite sheet layer 621 .
  • one side of a whole piece of graphite sheet can be cut to form the graphite sheet layer 621 at the cut and thinned position, and the graphite sheet portion 610 is formed at the uncut position.
  • the thickness of the elastic support layer 622 is smaller than the thickness of the graphite sheet layer 621 .
  • the heat conduction efficiency of the laminate portion 620 is relatively high, which is beneficial to improving the heat dissipation performance of the foldable device.
  • a first adhesive layer 629 is provided between the graphite sheet layer 621 and the elastic support layer 622.
  • the graphite sheet layer 621 and the elastic support layer 622 are bonded and fixed through the first adhesive layer 629.
  • the graphite sheet layer 621 and the elastic support layer 622 are easily fixed, and they are stable and difficult to shift after being bonded and fixed. Good for flexibility
  • the support layer 622 supports the graphite sheet layer 621, and the graphite sheet layer 621 is not prone to wrinkles.
  • a first adhesive layer 629 is provided at the overlapping position of the graphite sheet layer 621 and the elastic support layer 622, and both are bonded and fixed by the first adhesive layer 629.
  • the first adhesive layer 629 can be made of thermally conductive adhesive. form.
  • the thickness of graphite sheet portion 610 is equal to the thickness of stack portion 620 .
  • the flexible thermally conductive sheet 600 is flatter, which can reduce the risk of the flexible thermally conductive sheet 600 affecting the display of the flexible screen 300 .
  • the thickness of the graphite sheet part 610 may be 0.1 mm
  • the thickness of the graphite sheet layer 621 may be 0.07 mm
  • the thickness of the first adhesive layer 629 may be 0.01 mm
  • the thickness of the elastic support layer 622 may be 0.02 mm.
  • the thickness of the graphite sheet part 610 may be 0.12 mm
  • the thickness of the graphite sheet layer 621 may be 0.08 mm
  • the thickness of the first adhesive layer 629 may be 0.01 mm
  • the thickness of the elastic support layer 622 may be 0.03 mm.
  • FIG. 12 is a schematic diagram of the intersection of the graphite sheet part and the laminate part of the flexible thermally conductive sheet of another foldable device in the second direction according to the embodiment of the present application.
  • the thickness of the graphite sheet portion 610 is greater than the thickness of the laminate portion 620 .
  • the thickness of the graphite sheet part 610 may be 0.1 mm
  • the thickness of the graphite sheet layer 621 may be 0.06 mm
  • the thickness of the first adhesive layer 629 may be 0.01 mm
  • the thickness of the elastic support layer 622 may be 0.02 mm.
  • the thickness of the graphite sheet part 610 may be 0.12 mm
  • the thickness of the graphite sheet layer 621 may be 0.08 mm
  • the thickness of the first adhesive layer 629 may be 0.01 mm
  • the thickness of the elastic support layer 622 may be 0.02 mm.
  • the thickness of the graphite sheet portion 610 can be determined according to the height of the first chamber 510 in the thickness direction of the foldable device, and the thickness of the laminate portion 620 can be determined according to the height of the second chamber 520 and the third chamber 530 .
  • the height of the foldable device in the thickness direction is determined.
  • the thickness of the graphite sheet layer 621 and the elastic support layer 622 can be determined according to the thickness of the laminated part 620 and the required thermal conductivity and bending performance of the laminated part 620.
  • a first sinking platform is provided on a side of the first housing 110 facing the first part 310
  • a second sinking platform is provided on a side of the second housing 120 facing the second part 320
  • the rotating shaft mechanism 200 faces a third sinking platform.
  • a third sink is provided on one side of the part 330.
  • a first chamber 510 is formed between the first sink and the first part 310.
  • a second chamber 520 is formed between the second sink and the second part 320.
  • the third sink is
  • a third chamber 530 is formed between the platform and the third part 330, and at least part of the flexible thermally conductive sheet 600 is disposed on the first sinking platform, the second sinking platform and the third sinking platform.
  • At least part of the stack portion 620 is located on the second sink and/or the third sink.
  • the stacked portion 620 slides relative to the second housing and/or the rotating shaft mechanism, and a sinking platform is provided to limit the sliding position of the stacked portion, which is beneficial to lifting the stacked portion. Structural reliability of the layers. In this way, the risk of the flexible thermally conductive sheet 600 affecting the display of the flexible screen 300 can also be reduced.
  • FIG. 13 is a schematic diagram of a cross-section perpendicular to the second direction at the third part and the laminate part of yet another foldable device provided by an embodiment of the present application.
  • the elastic support layer 622 is tightly connected to the side of the graphite sheet layer 621 close to the flexible screen 300.
  • the graphite sheet layer 621 is close to the second housing 120, which is beneficial to improving the heat conduction efficiency between the flexible thermally conductive sheet 600 and the second housing 120.
  • the third chamber 530 is provided with a lubricating medium 700 for reducing friction between the flexible thermally conductive sheet 600 and the third part 330 and/or the rotating shaft mechanism 200 . In this way, the sliding of the flexible thermally conductive sheet 600 is facilitated.
  • the lubricating medium 700 can be grease, lubricating film, etc.
  • a lubricating medium 700 is provided between the rotating shaft mechanism 200 and the flexible thermally conductive sheet 600 .
  • a lubricating medium 700 is provided between the third part 330 and the flexible thermally conductive sheet 600 .
  • lubricating medium 700 is provided between the rotating shaft mechanism 200 and the flexible thermally conductive sheet 600 and between the third part 330 and the flexible thermally conductive sheet 600 .
  • the friction between the flexible thermally conductive sheet 600 and the third part 330 and the rotating shaft mechanism 200 is small, which facilitates the sliding of the flexible thermally conductive sheet 600 and reduces the risk of affecting the display of the flexible screen 300 .
  • Figure 14 is an enlarged view of part A in Figure 5.
  • the elastic support layer 622 includes a first end 623 away from the graphite sheet portion 610 in the first direction
  • the graphite sheet layer 621 includes a first end 623 away from the graphite sheet portion 610 in the first direction.
  • the first end 623 of the second end 624 of the graphite sheet portion 610 protrudes from the second end 624 .
  • Figure 15 is a schematic diagram of another foldable device provided by an embodiment of the present application when it is in a flattened state, with the flexible screen and a flexible heat conductive sheet hidden on one side.
  • Figure 16 is a schematic diagram of another foldable device provided by an embodiment of the present application. Schematic diagram of the cooperation between the laminate part and Mylar when the foldable device switches from the flat state to the folded state.
  • the second housing 120 is fastened with a mylar 800.
  • the mylar 800 is located in the second chamber 520.
  • the mylar 800 is in contact with the second end 624 in the first direction. They are arranged at intervals. At least part of the Mylar 800 overlaps with the portion of the elastic support layer 622 protruding from the second end 624 in the thickness direction of the second housing 120 .
  • the first end 623 is in sliding fit with the Mylar 800 .
  • the Mylar 800 when the foldable device is in the folded state, the flattened state, and in the intermediate state between the folded state and the flattened state, the Mylar 800 is disposed at a distance from the second end 624 in the first direction, and the Mylar 800 At least part of the elastic support layer 622 in the thickness direction of the second housing 120 overlaps with the portion of the elastic support layer 622 protruding from the second end 624 .
  • the Mylar 800 may be disposed with an end of the second housing 120 away from the rotating shaft mechanism 200 in the first direction.
  • the first end 623 contacts the Mylar 800 and does not touch the second housing 120. This can reduce the contact between the first end 623 and the second housing 120.
  • the second casing 120 may cause abnormal noise.
  • the thickness of Mylar 600 may be smaller than the thickness of graphite sheet 621 .
  • the Mylar 800 may be Teflon Mylar.
  • Teflon Mylar has self-lubricating properties, which can reduce the friction between the elastic support layer 622 and Mylar 800 and facilitate the sliding of the flexible thermally conductive sheet 600 .
  • Figure 17 is an enlarged view of part B in Figure 10.
  • the elastic support layer 622 includes a first side 625 and a second side 626 that are opposite in the second direction
  • the graphite sheet layer 621 includes a third side that is opposite in the second direction. 627 and the fourth side 628, the first side 625 is adjacent to the third side 627, the second side 626 is adjacent to the fourth side 628, the third side 627 protrudes from the first side 625, and the fourth side 628 protrudes from Second side 626.
  • the width of the portion of the graphite sheet 621 protruding from the first side 625 in the second direction is smaller than the height of the second chamber 520 in the thickness direction of the foldable device, and is smaller than the height of the third chamber 530 in the thickness direction of the foldable device.
  • the width of the portion of the graphite sheet 621 protruding from the second side 626 in the second direction is smaller than the height of the second chamber 520 in the thickness direction of the foldable device, and is smaller than the height of the third chamber 530 in the thickness direction of the foldable device.
  • the portion of the graphite layer 621 protruding from the first side 625 and the portion protruding from the second side 626 can prevent the elastic support layer 622 from touching the second housing 120 and/or the rotating shaft mechanism on both sides in the second direction. 200, the risk of abnormal noise caused by the elastic support layer 622 touching the second housing 120 and/or the rotating shaft mechanism 200 on both sides in the second direction can be reduced.
  • the portion of the graphite sheet layer 621 protruding from the first side 625 and the portion protruding from the second side 626 are tightly connected to the elastic support layer 622 through the overlapping portion of the graphite sheet layer 621 and the elastic support layer 622.
  • the graphite sheet The width of the portion of the layer 621 protruding from the first side 625 and the portion protruding from the second side 626 is narrow in the second direction. During the sliding process of the elastic support layer 622, the graphite sheet layer 621 protrudes from the first side 625.
  • the part and the part protruding from the second side 626 will move together under the drive of the elastic support layer 622, and even if the part of the graphite layer 621 protruding from the first side 625 and the part protruding from the second side 626 are wrinkled, it will not easily The risk of being squeezed into the flexible screen 300 and affecting the display of the flexible screen 300 is small.
  • FIG. 18 is a schematic diagram of one side of a foldable device provided with a flexible screen when it is in a flat state according to an embodiment of the present application.
  • the first part 310 is bonded and fixed with the first shell 110 through the first adhesive strip 111
  • the second part 320 is bonded with the first shell 110 through the second adhesive strip 121
  • the second housing 120 is fixed by adhesive.
  • the first adhesive strip 111 can adhere and fix the first part 310 to the first casing 110 , and the first adhesive strip 111 can separate the first part 310 and the first casing 110 for accommodating the flexible screen 300
  • the second adhesive strip 121 can adhere the second part 320 to the second housing 120, and the second adhesive strip 121 can space the second part 320 from the second housing 120.
  • the second chamber 520 for sliding the flexible screen 300 does not need to be separately provided with a sinking platform or other structures to form the first chamber 510 and the second chamber 520 for installing the flexible thermally conductive sheet 600 at a distance from the flexible screen 300.
  • the structure of the foldable device can be made simpler, and the foldable device can also be made thinner and lighter.
  • the thickness of the first adhesive strip 111 may be greater than the thickness of the portion of the flexible thermally conductive sheet 600 within the first cavity 510 .
  • the first adhesive strip 111 may be 0.2 mm thicker than the portion of the flexible thermally conductive sheet 600 in the first cavity 510, for example, the flexible thermally conductive sheet 600 is
  • the thickness of the portion of the sheet 600 within the first cavity 510 may be 0.1 mm, and the thickness of the first adhesive strip 111 may be 0.3 mm.
  • the thickness of the second adhesive strip 121 may be greater than the thickness of the portion of the flexible thermally conductive sheet 600 within the second cavity 520 .
  • the second adhesive strip 121 may be 0.2 mm thicker than the portion of the flexible thermally conductive sheet 600 within the second cavity 520 .
  • the thickness of the portion of the flexible thermally conductive sheet 600 within the second cavity 520 may be 0.1mm.
  • the thickness of the second adhesive strip 121 may be 0.3mm.
  • the first portion 310 can be bonded and fixed with the first mounting plate 114 through the first adhesive strip 111.
  • the first mounting plate 114, the first adhesive strip 111 and A first chamber 510 may be formed between the first portions 310 .
  • the second housing 120 includes the second mounting plate 124, the second portion 320 can be bonded and fixed with the second mounting plate 124 through the second adhesive strip 121.
  • the second mounting plate 124 and the second adhesive strip 121 A second chamber 520 may be formed between the second portion 320 and the second portion 320 .
  • the first adhesive strip 111 is provided on the edge of the first part 310
  • the second adhesive strip 121 is provided on the edge of the second part 320 .
  • the size of the first chamber 510 and the second chamber 520 is larger, which is beneficial to increasing the size of the sliding part of the flexible screen 300 in the second chamber 520 and the part that is fastened in the first chamber 510, which is beneficial to Thermal efficiency of foldable devices.
  • FIG. 19 is a schematic diagram of one side of a foldable device provided with a flexible screen when it is in a flat state according to an embodiment of the present application.
  • the portion of the flexible thermally conductive sheet 600 located in the second chamber 520 and the third chamber 530 may include multiple sections spaced apart along the axial direction of the rotating shaft mechanism 200 and parallel to each other.
  • the flexible thermally conductive sheet 600 may include a plurality of laminated portions 620 spaced apart along the axial direction of the rotating shaft mechanism 200 and parallel to each other. Each laminated portion One end of 620 is connected to the graphite sheet portion 610 .
  • the space of the second chamber 520 and the third chamber 530 can be fully utilized to arrange the flexible thermally conductive sheet 600, which is beneficial to improving the thermal conductivity between the flexible thermally conductive sheet 600 and the second housing 120, and the flexible thermally conductive sheet 600 provided
  • the number is smaller and the reliability is higher.
  • FIG. 20 is a schematic diagram of another foldable device provided with a flexible screen when it is in a flat state according to an embodiment of the present application.
  • each laminated portion 620 of the flexible thermally conductive sheet 600 connected to the graphite sheet portion 610 is located in the first chamber 510, At least a portion of each stacked portion 620 located in the first chamber 510 is fastened to the first housing 110 , and the portion of each stacked portion 620 to the first housing 110 can be connected as one body. In this way, the risk of the graphite sheet portion 610 being easily damaged due to uneven stress generated by the plurality of stacked portions 620 connected to the graphite sheet portion 610 on the graphite sheet portion 610 can be reduced.
  • FIG. 21 is a schematic diagram of one side of another foldable device provided with a flexible screen when it is in a flat state according to an embodiment of the present application.
  • the foldable device may include a plurality of flexible thermally conductive sheets 600 distributed along the axial direction of the rotating shaft mechanism 200 .
  • the space restriction of the first chamber 510 can be reduced, which can make full use of the space of the first chamber 510 to arrange the flexible thermally conductive sheet 600 and improve the thermal conductivity between the flexible thermally conductive sheet 600 and the first housing 110 .
  • connection should be understood in a broad sense.
  • it can be a fixed connection or a fixed connection.
  • Indirect connection through an intermediary can be the internal connection between two elements or the interaction between two elements.

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Abstract

本申请实施例提供一种可折叠设备，该设备的第一壳体和第二壳体通过转轴机构转动连接，设备的柔性屏与第一壳体之间具有第一腔室，与第二壳体之间具有第二腔室，与转轴机构之间具有第三腔室。第一腔室、第二腔室和第三腔室形成的空间内设有柔性导热片，柔性导热片与第一壳体紧固连接，且沿柔性屏穿过第三腔室，并延伸至第二腔室内，柔性导热片与转轴机构、第二壳体以及柔性屏与转轴机构和第二壳体对应的部分均滑动配合，柔性导热片与第一壳体、第二壳体以及设备的发热单元均导热连接。本申请实施例的第一壳体和第二壳体上的热量可相互传导，第一壳体和第二壳体的温差小，第一壳体或者第二壳体出现过热的风险较小。

Description

可折叠设备
本申请要求于2022年08月02日提交中国专利局、申请号为202210922397.4、申请名称为“可折叠设备”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。
技术领域
本申请实施例涉及电子设备技术领域，特别涉及一种可折叠设备。
背景技术
随着智能手机或平板电脑等电子设备技术的发展，电子设备的功能越来越多。电子设备的显示屏的面积越大，可使电子设备的一些功能的使用体验更佳。但电子设备的显示屏的面积较大时，会导致电子设备整体尺寸较大，造成电子设备携带不便利。为使显示屏面积较大的电子设备携带更加便利，在一些电子设备中，显示屏可采用柔性屏，并将电子设备制成可折叠设备。
在一些相关技术中，可折叠设备包括柔性屏、转轴机构以及分别安装于转轴机构两侧的两个壳体，两个壳体通过转轴机构转动连接，以使可折叠设备可在折叠状态和展平状态之间切换，柔性屏安装在两个壳体上，柔性屏可在两个壳体的带动下进行折叠和展平，至少一个壳体内可设置摄像头、主板模块等发热单元，发热单元产生的热量可传导到其所在的壳体上，并通过其所在的壳体将热量散发到外部环境中。
然而，相关技术中的可折叠设备，部分壳体易出现过热的问题。
发明内容
本申请实施例提供一种可折叠设备，通过在不同的壳体之间设置跨过转轴机构且与使不同的壳体导热连接的柔性导热片，使不同的壳体上的热量相互传导，任一壳体内的发热单元产生的热量均可通过多个壳体进行散热，不同壳体之间的温差较小，各个壳体不易出现过热的问题。
本申请提供一种可折叠设备，包括第一壳体、第二壳体、发热单元、转轴机构、柔性屏和柔性导热片，第一壳体和第二壳体通过转轴机构转动连接，第一壳体和第二壳体中的至少一个内设有发热单元。柔性屏包括第一部分、第二部分和第三部分，第一部分安装于第一壳体上，且第一部分与第一壳体之间具有第一腔室，第二部分安装于第二壳体上，且第二部分与第二壳体之间具有第二腔室，第三部分与转轴机构相对，且第三部分与转轴机构之间具有第三腔室，第三腔室的两端分别与第一腔室和第二腔室连通。柔性导热片设于第一腔室、第二腔室和第三腔室形成的空间内，柔性导热片位于第一腔室内的至少部分与第一壳体紧固连接，柔性导热片沿第三部分穿过第三腔室，并延伸至第二腔室内，柔性导热片与第三部分和转轴机构以及与第二部分和第二壳体均滑动配合。柔性导热片与发热单元、第一壳体和第二壳体均导热连接。
本申请实施例的可折叠设备，通过设置将第一壳体和第二壳体导热连接的柔性导热片，第一壳体和第二壳体上的热量可以相互传导，第一壳体和第二壳体内的发热单元产生的热量可以通过第一壳体和第二壳体一起向外部环境进行散热。在第一壳体和第二壳体中，设有发热量较大的发热单元的一个上的热量可以传递到热量较小、温度较低另一个上，第一壳体和第二壳体之间的温差较小，设有发热量较大的发热单元的一个不易出现过热的问题，不再需要通过增厚导热片来提高设有发热量较大的发热单元的散热性能，可使柔性导热片较为轻薄。另外，柔性导热片与第三部分和转轴机构以及与第二部分和第二壳体均滑动配合，柔性导热片位于第二腔室和第三腔室内的部分不固定，可折叠设备在展开状态和折叠状态切换的过程中，柔性导热片在第二腔室和第三腔室内的部分可沿第二部分和第三部分滑动，可降低可折叠设备在展开状态和折叠状态之间切换时造成的柔性导热片被拉扯或者被压缩起皱的风险，柔性导热片不易夹入转轴机构以及转轴机构与第一壳体和第二壳体之间的缝隙内，可降低柔性导热片对可折叠设备的开合的影响，另外，柔性导热片在可折叠设备处于各个状态下均较为平滑，可降低对柔性屏显示的影响。
在一种可能的实施方式中，柔性导热片包括石墨片部和叠层部，石墨片部位于第一腔室内，并与第一壳体紧固连接，叠层部沿第三部分穿过第三腔室，并延伸至第二腔室内，叠层部与第三部分和转轴机构以及与第二部分和第二壳体均滑动配合。其中，叠层部包括叠置的石墨片层和弹性支撑层，弹性支撑层与石墨片层紧固连接。
在一种可能的实施方式中，叠层部与石墨片部连接的一端位于第一腔室内，叠层部位于第一腔室内的至少部分与第一壳体紧固连接。
在一种可能的实施方式中，弹性支撑层包括金属，金属的刚性大于石墨片层的刚性。
在一种可能的实施方式中，弹性支撑层紧固连接在石墨片层靠近柔性屏的侧面上。
在一种可能的实施方式中，弹性支撑层包括在第一方向上远离石墨片部的第一端，石墨片层包括在第一方向上远离石墨片部的第二端，第一端凸出于第二端。第二壳体紧固连接有麦拉，麦拉位于第二腔室内，麦拉在第一方向与第二端间隔设置，麦拉的至少部分在第二壳体的厚度方向与弹性支撑层凸出第二端的部分交叠，第一端与麦拉滑动配合。其中，第一方向为可折叠设备处于展平状态时，第一壳体朝向第二壳体的方向。
在一种可能的实施方式中，麦拉为铁氟龙麦拉。
在一种可能的实施方式中，弹性支撑层包括在第二方向上相对的第一侧和第二侧，石墨片层包括在第二方向上相对的第三侧和第四侧，第一侧与第三侧相邻，第二侧与第四侧相邻，第三侧凸出于第一侧，第四侧凸出于第二侧。石墨片层凸出第一侧的部分在第二方向的宽度小于第二腔室在可折叠设备的厚度方向的高度，且小于第三腔室在可折叠设备的厚度方向的高度。石墨片层凸出第二侧的部分在第二方向的宽度小于第二腔室在可折叠设备的厚度方向的高度，且小于第三腔室在可折叠设备的厚度方向的高度。其中，第二方向为转轴机构的长度延伸方向。
在一种可能的实施方式中，石墨片部与石墨片层是一体结构，石墨片部的厚度大于石墨片层的厚度。
在一种可能的实施方式中，弹性支撑层的厚度小于石墨片层的厚度。
在一种可能的实施方式中，石墨片层和弹性支撑层之间设有第一粘接层，石墨片层和弹性支撑层通过第一粘接层粘接固定。
在一种可能的实施方式中，当第一壳体内设有发热单元时，第一壳体内的发热单元沿第一壳体厚度方向的投影位于柔性导热片在第一腔室内的部分沿第一壳体厚度方向的投影的范围内。
在一种可能的实施方式中，第一壳体内设有发热单元。当第二壳体内也设有发热单元时，第一壳体内的发热单元运行时的发热量大于第二壳体内的发热单元运行时的发热量。
在一种可能的实施方式中，转轴机构与柔性导热片之间设有润滑介质。
在一种可能的实施方式中，第三部分与柔性导热片之间设有润滑介质。
在一种可能的实施方式中，转轴机构与柔性导热片之间以及第三部分与柔性导热片之间均设有润滑介质。
在一种可能的实施方式中，柔性导热片位于第一腔室内的至少部分通过第二粘接层粘接固定在第一壳体上。
在一种可能的实施方式中，柔性导热片与第一壳体之间设有第二粘接层，柔性导热片通过第二粘接层与第一壳体粘接固定。
在一种可能的实施方式中，柔性导热片与第一壳体内的发热单元之间设有第二粘接层，柔性导热片通过第二粘接层与第一壳体内的发热单元粘接固定，以使柔性导热片通过第二粘接层和第一壳体内的发热单元与第一壳体紧固连接。
在一种可能的实施方式中，柔性导热片与第一壳体之间以及柔性导热片与第一壳体内的发热单元之间均设有第二粘接层，柔性导热片通过第二粘接层分别与第一壳体和第一壳体内的发热单元粘接固定。
在一种可能的实施方式中，柔性导热片位于第一腔室内的部分开设有定位孔，第一壳体设有与定位孔对应的定位凸起，定位凸起伸入对应的定位孔内。
在一种可能的实施方式中，第一部分通过第一粘接条与第一壳体粘接固定，第二部分通过第二粘接条与第二壳体粘接固定。第一部分、第一粘接条和第一壳体之间具有第一腔室，第二部分、第二粘接条与第二壳体之间具有第二腔室。
在一种可能的实施方式中，第一粘接条设于第一部分的边缘，第二粘接条设于第二部分的边缘。
附图说明
图1为本申请实施例提供的一种可折叠设备处于折叠状态时的一个视角的示意图；
图2为本申请实施例提供的一种可折叠设备处于展平状态时的一个视角的示意图；
图3为本申请实施例提供的又一种可折叠设备处于展平状态时设有柔性屏一侧的示意图；
图4为本申请实施例提供的又一种可折叠设备处于展平状态时隐藏第一后盖后的示意图；
图5为本申请实施例提供的又一种可折叠设备处于展平状态时隐藏柔性屏后的示意图；
图6为本申请实施例提供的又一种可折叠设备处于折叠状态时的示意图；
图7为本申请实施例提供的又一种可折叠设备在折叠状态和展平状态之间切换过程中的中间状态的示意图；
图8为本申请实施例提供的又一种可折叠设备处于展平状态时的示意图；
图9为本申请实施例提供的又一种可折叠设备的柔性导热片在柔性导热片的厚度方向上的一侧的示意图；
图10为本申请实施例提供的又一种可折叠设备的柔性导热片在柔性导热片的厚度方向上的另一侧的示意图；
图11为本申请实施例提供的又一种可折叠设备的柔性导热片的石墨片部和叠层部交接处在第二方向上的一侧的示意图；
图12为本申请实施例提供的又一种可折叠设备的柔性导热片的石墨片部和叠层部交接处在第二方向上的一侧的示意图；
图13为本申请实施例提供的又一种可折叠设备的第三部分和叠层部处的一个垂直于第二方向的截面的示意图；
图14为图5中A部放大图；
图15为本申请实施例提供的又一种可折叠设备处于展平状态时设有柔性屏的一侧隐藏柔性屏和柔性导热片后的示意图；
图16为本申请实施例提供的又一种可折叠设备由展平状态切换为折叠状态的过程中叠层部与麦拉之间的配合示意图；
图17为图10中B部的放大图；
图18为本申请实施例提供的又一种可折叠设备处于展平状态时设有柔性屏一侧的示意图；
图19为本申请实施例提供的又一种可折叠设备处于展平状态时设有柔性屏一侧的示意图；
图20为本申请实施例提供的又一种可折叠设备处于展平状态时设有柔性屏一侧的示意图；
图21为本申请实施例提供的又一种可折叠设备处于展平状态时设有柔性屏一侧的示意图。
附图标记说明：
110、第一壳体；111、第一粘接条；112、第一中框；113、第一后盖；114、第一安装板；
120、第二壳体；121、第二粘接条；122、第二中框；123、第二后盖；124、第二安装板；
200、转轴机构；210、主轴组件；220、第一折叠组件；230、第二折叠组件；
300、柔性屏；310、第一部分；320、第二部分；330、第三部分；
400、发热单元；
510、第一腔室；511、第二粘接层；520、第二腔室；530、第三腔室；
600、柔性导热片；610、石墨片部；611、定位孔；620、叠层部；621、石墨片层；622、弹性支撑
层；623、第一端；624、第二端；625、第一侧；626、第二侧；627、第三侧；628、第四侧；629、第一粘接层；
700、润滑介质；
800、麦拉。
具体实施方式
本申请的实施方式部分使用的术语仅用于对本申请的具体实施例进行解释，而非旨在限定本申请，下面将结合附图对本申请实施例的实施方式进行详细描述。
本申请实施例提供一种可折叠设备，可以通过折叠和展开来改变自身的形态，以满足用户在不同场景下的需求。例如，在携带时，可进行折叠，以减小可折叠设备的尺寸；在使用时，可展平，以增大用于显示或者操作的屏幕的尺寸。可以理解的是，可折叠设备也可称为用户设备(user equipment，UE)或终端(terminal)等。
本申请实施例提供的可折叠设备可以包括但不限于为平板电脑(portable android device，PAD)、个人数字处理(personal digital assistant，PDA)、具有无线通信功能的手持设备、计算设备、车载设备、可穿戴设备、虚拟现实(virtual reality，VR)终端设备、增强现实(augmented reality，AR)终端设备、工业控制(industrial control)中的无线终端、无人驾驶(self driving)中的无线终端、远程医疗(remote medical)中的无线终端、智能电网(smart grid)中的无线终端、运输安全(transportation safety)中的无线终端、智慧城市(smart city)中的无线终端、智慧家庭(smart home)中的无线终端等移动终端或固定终端。本申请实施例以一种具有无线通信功能的手持设备为例进行说明，具有无线通信功能的手持设备可以为手机。
图1为本申请实施例提供的一种可折叠设备处于折叠状态时的一个视角的示意图。
如图1所示，本申请实施例提供的可折叠设备包括第一壳体110、第二壳体120和转轴机构200，第一壳体110和第二壳体120分别安装于转轴机构200的两侧，第一壳体110和第二壳体120通过转轴机构200转动连接，以使可折叠设备可在展平状态和折叠状态之间相互切换。
可以理解的是，第一壳体110和第二壳体120相对转动至相互层叠时，可折叠设备处于折叠状态，此时，第一壳体110与第二壳体120可以相互平行。本领域技术人员可以理解地，可折叠设备处于展平状态时，由于设计公差等原因，两个结构件之间相互平行，可以不是绝对的平行，允许存在少许偏差。第一壳体110和第二壳体120相对转动至二者的夹角大致呈180°时，可折叠设备处于展平状态。本领域技术人员可以理解地，本申请文件中所指的两个结构件之间的夹角大致呈180°，由于设计公差等原因，可以不是绝对的180°，允许存在少许偏差，例如165°、177°或者185°。当然，可折叠设备还具有在折叠状态和展平状态之间切换过程中的中间状态。
示例性的，第一壳体110可以包括第一中框112和第一后盖113，第一后盖113紧固连接在第一中框112的厚度方向上的一侧，第二壳体120可以包括第二中框122和第二后盖123，第二后盖123紧固连接在第二中框122的厚度方向上的一侧，第一中框112和第二中框113分别安装在转轴机构200的两侧，第一中框112和第二中框113通过转轴机构200转动连接。在可折叠设备处于展平状态时，第一中框112和第二中框122的夹角大致呈180°，第一后盖113与第二后盖123的夹角大致呈180°。在可折叠设备处于折叠状态时，第一中框112和第二中框122可以相互平行，第一后盖113和第二后盖123可以相互平行，且第一后盖113位于第一中框112远离第二中框122的一侧，第二后盖123位于第二中框122远离第一中框112的一侧。
图2为本申请实施例提供的一种可折叠设备处于展平状态时的一个视角的示意图。
本申请实施例提供的可折叠设备还包括柔性屏300，柔性屏300安装在第一壳体110和第二壳体120上。
可以理解的是，柔性屏300安装在第一壳体110和第二壳体120同一侧的表面，柔性屏300安装在第一壳体110和第二壳体120上后，转轴机构200可用于支撑柔性屏300。
在第一壳体110包括第一中框112和第一后盖113，第二壳体120包括第二中框122和第二后盖123的示例中，第一中框112背离第一后盖113的侧面用于安装柔性屏300，第二中框122背离第二后盖123的侧面用于安装柔性屏300。
柔性屏300可以用于图像显示，也可以用于作为虚拟键盘用于输入信息，柔性屏300的功能可根据具体应用场景而定。
示例性的，柔性屏300可以为有机发光二极管(organic light-emitting diode，OLED)显示屏、有源矩阵有机发光二极体或者主动矩阵有机发光二极体(active-matrix organic light-emitting diode，AMOLED)显示屏、迷你发光二极管(mini organic light-emitting diode)显示屏、微型发光二极管(micro light-emitting diode)显示屏、微型有机发光二极管(micro organic light-emitting diode)显示屏、量子点发光二极管 (quantum dot light-emitting diode)显示屏等。
在本申请实施例中，柔性屏300包括第一部分310、第二部分320和第三部分330，第一部分310安装于第一壳体110上，第二部分320安装于第二壳体120上，第三部分330与转轴机构200相对。可以理解的是，第一部分310可以通过粘接、夹紧等方式安装在第一壳体110上，第二部分320可以通过粘接、夹紧等方式安装在第二壳体120上，第三部分330的两侧分别连接第一部分310和第二部分320。
具体来说，在第一壳体110可以包括第一中框112和/或第一后盖113，第二壳体120可以包括第二中框122和/或第二后盖123的示例中，第一部分310可安装于第一中框112远离第一后盖113的一侧，第二部分320可安装于第二中框122远离第二后盖123的一侧。
可以理解的是，可折叠设备在由展平状态切换为折叠状态时，第一部分310和第二部分320可以随第一壳体110和第二壳体120转动，第三部分330发生弯折，第一部分310和第二部分320可以不发生弯折，或弯折角度很小，近乎平整。可折叠设备在由折叠状态切换为展平状态时，弯折的第三部分330展平，以使第一部分310、第二部分320和第三部分330处于同一平面内(允许存在少许偏差)。
图3为本申请实施例提供的又一种可折叠设备处于展平状态时设有柔性屏一侧的示意图。
如图3所示，本申请实施例提供的可折叠设备的第一壳体110和第二壳体120中的至少一个内还设有发热单元400。
可以理解的是，可以在第一壳体110内的电路板设置有发热单元400，第二壳体120内可以不设置发热单元400；也可以在第二壳体120内的电路板设置发热单元400，第一壳体110内可以不设置发热单元400；还可以在第一壳体110内的电路板和第二壳体120内的电路板均设置发热单元400。
图4为本申请实施例提供的又一种可折叠设备处于展平状态时隐藏第一后盖后的示意图。
如图4所示，在第一壳体110包括第一中框112和第一后盖113的示例中，第一壳体110内的发热单元400可以设置于第一中框112和第一后盖113形成的空间内，第一壳体110内的设置有发热单元400的电路板可以安装于第一中框112的容纳腔，发热单元400可以与第一中框112和第一后盖113导热连接。具体来说，第一壳体110内的发热单元400可以通过与第一中框112和第一后盖113中的至少一个接触或者靠近的方式，来与第一中框112和第一后盖113导热连接。
在第二壳体120包括第二中框122和第二后盖123的示例中，第二壳体120内的发热单元400可以设置于第二中框122和第二后盖123形成的空间内，第二壳体120内的设置有发热单元400的电路板可以安装于第二中框122的容纳腔，发热单元400可以与第二中框122和第二后盖123导热连接。具体来说，第二壳体120内的发热单元400可以通过与第二中框122和第二后盖123中的至少一个接触或者靠近的方式，来与第二中框122和第二后盖123导热连接。
需要说明的是，发热单元400为会产生热量的元器件或者多种元器件组成的模块。示例性的，发热单元400可以是中央处理器(central processing unit，CPU)、图形处理器(graphics processing unit，GPU)等芯片，或者也可以为电源、电阻、摄像头等器件，还可以是集成有多种元器件的主板模块。第一壳体110内可以设置一个或者多个发热单元400，第二壳体120内也可以设置一个或者多个发热单元400。
在第一壳体110和第二壳体120的腔体内均设有元器件时，第一壳体110和第二壳体120内的元器件可以通过柔性电路板电连接，柔性电路板可由从第一壳体110穿过转轴机构200延伸到第二壳体120，以使第一壳体110和第二壳体120的腔体内的元器件电连接。在第一壳体110包括第一中框112和第一后盖113，第二壳体120包括第二中框122和第二后盖123的示例中，柔性电路板可以设置在第一中框112和第二中框122远离柔性屏300的一侧。换句话说，第一中框112和第二中框122可以位于柔性屏300与柔性电路板之间。
一些相关技术中的可折叠设备，第一壳体110的腔体内设置的发热单元400产生的热量传导到第一壳体110上，再通过第一壳体110将热量散发到外部环境中，第二壳体120的腔体内设置的发热单元400产生的热量传导到第二壳体120上，再通过第二壳体120将热量散发到外部环境中。在一些第一壳体110和第二壳体120内分别设有导热片的可折叠设备中，相关技术中的可折叠设备将导热片分别独立设置在第一壳体110和第二壳体120内。换句话来说，第一壳体110内的导热片未穿过或者跨过转轴机构200延伸到第二壳体120内，第二壳体120内的导热片未穿过或者跨过转轴机构200延伸到第一壳体110内。第一壳体110内的导热片可用于将第一壳体110内的发热单元400产生的热量快速并且均匀的 传导至第一壳体110上的各个位置，第二壳体120内的导热片可用于将第二壳体120内的发热单元400产生的热量快速并且均匀的传导至第二壳体120上的各个位置。无论可折叠设备内是否设有导热片，第一壳体110和第二壳体120上的热量均无法相互传导，第一壳体110内的发热单元400产生的热量通过第一壳体110发散，第二壳体120内的发热单元400产生的热量通过第二壳体120发散，在第一壳体110或者第二壳体120上的热量较高时，可能出现散热能力不足的情况。在可折叠设备中，第一壳体110和第二壳体120内的发热单元400产生的热量常常不均等，设有发热量较大的发热单元400的一个上的热量较大、温度较高，另一个上的热量较小、温度较低；或者在第一壳体110和第二壳体120中的一个内不设置发热单元400时，设有发热单元400的一个上的热量较大、温度较高，另一个上的热量较小、温度较低。由于现有技术中第一壳体110和第二壳体120上的热量相互传导能力有限，第一壳体110和第二壳体120的温差较大，在第一壳体110和第二壳体120中，热量较大、温度较高的一个易出现过热的问题。
例如，主板模块在工作时的发热量较大，在主板模块设置在第一壳体110内时，无法有效通过第一壳体110和第二壳体120对主板模块产生的热量散热，第一壳体110易出现过热的问题。
图5为本申请实施例提供的又一种可折叠设备处于展平状态时隐藏柔性屏后的示意图。
基于此，如图5所示，本申请实施例提供的可折叠设备还包括柔性导热片600。可以理解的是，柔性导热片600为具有可弯折的特性的导热片。柔性导热片600可以为薄型铜片、薄型铝片等金属片，也可以为具有石墨、导热橡胶等复合结构层的导热片，例如，柔性导热片600可以为包括石墨层和弹性金属层的导热片。
图6为本申请实施例提供的又一种可折叠设备处于折叠状态时的示意图，图7为本申请实施例提供的又一种可折叠设备在折叠状态和展平状态之间切换过程中的中间状态的示意图，图8为本申请实施例提供的又一种可折叠设备处于展平状态时的示意图。
如图6-图8所示，在本申请的实施例中，柔性屏300的第一部分310与第一壳体110之间具有第一腔室510，柔性屏300的第二部分320与第二壳体120之间具有第二腔室520，柔性屏300的第三部分330与转轴机构200之间具有第三腔室530，且第三腔室530的两端分别与第一腔室510和第二腔室520连通。柔性导热片600设于第一腔室510、第二腔室520和第三腔室530形成的空间内，柔性导热片600位于第一腔室510内的至少部分与第一壳体110紧固连接，柔性导热片600沿第三部分330穿过第三腔室530，并延伸至第二腔室520内，柔性导热片600与第三部分330和转轴机构200以及与第二部分320和第二壳体120均滑动配合。柔性导热片600与发热单元400、第一壳体110和第二壳体120均导热连接。
可以理解的是，柔性导热片600可以与第一壳体110接触或者靠近第一壳体110设置，以使柔性导热片600与第一壳体110导热连接；柔性导热片600可以与第二壳体120接触或者靠近第二壳体120设置，以使柔性导热片600与第二壳体120导热连接。第一壳体110和第二壳体120通过柔性导热片600导热连接，第一壳体110和第二壳体120上的热量可以通过柔性导热片600相互传递。
在第一壳体110内设有发热单元400时，可使第一壳体110内的发热单元400与柔性导热片600接触或者靠近柔性导热片600设置，以使第一壳体110内的发热单元400与柔性导热片600导热连接。此时，第一壳体110内的发热单元400可以通过柔性导热片600与第一壳体110导热连接。
也可使第一壳体110内发热单元400与第一壳体110接触或者靠近第一壳体110设置，以使第一壳体110内的发热单元400与第一壳体110导热连接，第一壳体110内的发热单元400可以通过第一壳体110与柔性导热片600导热连接。
还可以使第一壳体110内的发热单元400与柔性导热片600接触或者靠近柔性导热片600设置，且使第一壳体110内发热单元400与第一壳体110接触或者靠近第一壳体110设置，以使第一壳体110内的发热单元400分别与第一壳体110和柔性导热片600导热连接。
换句话来说，第一壳体110内的发热单元400可以先将热量传递到第一壳体110上，通过第一壳体110将热量传递到柔性导热片600上；第一壳体110内的发热单元400也可以先将热量传递到柔性导热片600上，通过柔性导热片600将热量传递到第一壳体110上。第一壳体110内的发热单元400还可以将热量分别传递到柔性导热片600和第一壳体110上。
类似的，在第二壳体120内设有发热单元400时，可使第二壳体120内的发热单元400与柔性导 热片600接触或者靠近柔性导热片600设置，以使第二壳体120内的发热单元400与柔性导热片600导热连接。此时，第二壳体120内的发热单元400可以通过柔性导热片600与第二壳体120导热连接。
也可使第二壳体120内发热单元400与第二壳体120接触或者靠近第二壳体120设置，以使第二壳体120内的发热单元400与第二壳体120导热连接，第二壳体120内的发热单元400可以通过第二壳体120与柔性导热片600导热连接。
还可以使第二壳体120内的发热单元400与柔性导热片600接触或者靠近柔性导热片600设置，且使第二壳体120内发热单元400与第二壳体120接触或者靠近第二壳体120设置，以使第二壳体120内的发热单元400分别与第二壳体120和柔性导热片600导热连接。
换句话来说，第二壳体120内的发热单元400可以先将热量传递到第二壳体120上，通过第二壳体120将热量传递到柔性导热片600上；第二壳体120内的发热单元400也可以先将热量传递到柔性导热片600上，通过柔性导热片600将热量传递到第二壳体120上。第二壳体120内的发热单元400还可以将热量分别传递到柔性导热片600和第二壳体120上。
需要说明的是，发热单元400在可折叠设备厚度方向的投影可以全部或者部分位于柔性导热片600在可折叠设备厚度方向的投影的范围内。
在第一壳体110内的发热单元400通过第一壳体110与柔性导热片600进行导热连接时，第一壳体110内的发热单元400在可折叠设备厚度方向的投影可以不在柔性导热片600在可折叠设备厚度方向的投影的范围内。
在第二壳体120内的发热单元400通过第二壳体120与柔性导热片600进行导热连接时，第二壳体120内的发热单元400在可折叠设备厚度方向的投影可以不在柔性导热片600在可折叠设备厚度方向的投影的范围内。
可以理解的是，柔性导热片600位于第二腔室520内的端部为自由端，可以在第二部分320和第二壳体120之间往复滑动。
这样，柔性导热片600将第一壳体110和第二壳体120导热连接，第一壳体110和第二壳体120上的热量可以相互传导，第一壳体110和第二壳体120内的发热单元400产生的热量可以通过第一壳体110和第二壳体120一起向外部环境进行散热。在第一壳体110和第二壳体120中，设有发热量较大的发热单元400的一个上的热量可以传递到热量较小、温度较低的另一个上，第一壳体110和第二壳体120之间的温差较小，设有发热量较大的发热单元400的一个不易出现过热的问题，不再需要通过增厚导热片来提高设有发热量较大的发热单元400的散热性能，可使柔性导热片600较为轻薄。另外，柔性导热片600与第三部分330和转轴机构200以及与第二部分320和第二壳体120均滑动配合，柔性导热片600位于第二腔室520和第三腔室530内的部分不固定，可折叠设备在展开状态和折叠状态切换的过程中，柔性导热片600在第二腔室520和第三腔室530内的部分可沿第二部分320和第三部分330滑动，可降低可折叠设备在展开状态和折叠状态之间切换时造成的柔性导热片600被拉扯或者被压缩起皱的风险，柔性导热片600不易夹入转轴机构200以及转轴机构200与第一壳体110和第二壳体120之间的缝隙内，可降低柔性导热片600对可折叠设备的开合的影响，另外，柔性导热片600在可折叠设备处于各个状态下均较为平滑，可降低对柔性屏300显示的影响。
可以理解的是，在第一壳体110包括第一中框112和第一后盖113，第二壳体120包括第二中框122和第二后盖123的示例中，可使第一中框112朝向第一部分310的一侧与第一部分310间隔设置，第二中框122朝向第二部分320的一侧与第二部分320间隔设置，第一中框112朝向第一部分310的一侧与第一部分310之间形成第一腔室510，第二中框122朝向第二部分320的一侧与第二部分320之间形成第二腔室520，第一部分310和第二部分320可以分别通过连接框架、粘接条等结构与第一中框112和第二中框122连接，并分别与第一中框112和第二中框122间隔出第一腔室510和第二腔室520；或者，也可以在第一中框112朝向第一部分310的一侧设置用于与第一部分310形成第一腔室510的台阶结构，在第二中框112朝向第二部分320的一侧设置用于与第二部分320形成第二腔室520的台阶结构。
在第一中框112和第二中框122远离柔性屏300的一侧设有柔性电路板时，第一中框112和第二中框122可以位于柔性电路板与柔性导热片600之间。
需要说明的是，可折叠设备可以包括在一个转轴机构200两侧设置的一个第一壳体110和一个第二壳体120，第一壳体110和第二壳体120可以相向转动至层叠以及背向转动至同一平面(允许存在少 许偏差)，此时，可折叠设备可以折叠成两层。
可折叠设备也可以包括两个并列设置的第二壳体120，两个第二壳体120之间设置一个第一壳体110，每个第二壳体120与第一壳体110相邻的一侧之间通过一个转轴机构200转动连接，此时，两个第二个壳体120均可相对于第一壳体110相向转动至叠层，两个第二个壳体120也可相对于第一壳体110背向转动至与第一壳体110共面(允许存在少许偏差)，此时，可折叠设备可以折叠成三层。对应的，柔性屏300包括分别安装在两个第二壳体120上的两个第二部分320以及分别与两个转轴机构200相对的两个第三部分330，每个第二壳体120与其上安装的第二部分320之间均具有第二腔室520，每个转轴机构200与其相对的第三部分330之间均具有第三腔室530。柔性导热片600的两端可以分别沿两个第三部分330延伸至第一腔室510两侧的两第二腔室520内，柔性导热片600与两个第三部分330、两个转轴机构200、两个第二部分320和两个第二壳体120均滑动配合，柔性导热片600与两个第二壳体120均导热连接。
如图5-图8所示，在一些示例中，第一壳体110还可以包括设于第一中框112朝向第一部分310一侧的第一安装板114，第一安装板114与第一中框112紧固连接，第一部分310安装在第一安装板114上，第一安装板114与第一部分310间隔设置，第一安装板114与第一部分310之间形成第一腔室510，柔性导热片600位于第一腔室510内的部分与第一安装板114紧固连接，第一安装板114与第一中框112导热连接，以使第一中框112与柔性导热片600导热连接。
第二壳体120还可以包括设于第二中框122朝向第二部分320一侧的第二安装板124，第二安装板124与第二中框122紧固连接，第二部分320安装在第二安装板124上，第二安装板124与第二部分320间隔设置，第二安装板124与第二部分320之间形成第二腔室520，柔性导热片600位于第二腔室520内的部分与第二安装板124滑动配合，第二安装板124与第二中框122导热连接，以使第二中框122与柔性导热片600导热连接。
这样，便于柔性导热片600与第一壳体110的紧固连接，柔性导热片600在第一安装板114上粘接后较为平整，可减小对柔性导热片600的拉扯。另外，柔性导热片600通过第二安装板124与第二壳体120滑动也更加顺滑。
可以理解的是，第一壳体110内的发热单元400可以设置在第一安装板114、第一中框112和第一后盖113形成的空间内，第一壳体110内的发热单元400可以通过第一中框112、第一安装板114与柔性导热片600导热连接。第二壳体120内的发热单元400可以设置在第二安装板124、第二中框122和第二后盖123形成的空间内，第二壳体120内的发热单元400可以通过第二中框122、第二安装板124与柔性导热片600导热连接。
需要说明的是，第一中框112和第一安装板114可以为一体结构；第二中框122和第二安装部124可以为一体结构。
在一些实施例中，当第一壳体110内设有发热单元400时，第一壳体110内的发热单元400沿第一壳体110厚度方向的投影位于柔性导热片600在第一腔室510内的部分沿第一壳体110厚度方向的投影的范围内。
这样，第一壳体110内的发热单元400与柔性导热片600之间的热传导效率较高，第一壳体110内的发热单元400产生的热量可高效传递到柔性导热片600上，以通过柔性导热片600将热量传递到第二壳体120上。
如图5-图8所示，转轴机构200可以包括主轴组件210、第一折叠组件220和第二折叠组件230，第一折叠组件220和第二折叠组件230分别安装于主轴组件210相对的两侧，第一折叠组件220和第二折叠组件230可以分别与主轴组件210转动连接，第一壳体110可以与第一折叠组件220紧固连接或者滑动连接，第二壳体120可以与第二折叠组件230紧固连接或者滑动连接，第一壳体110可以通过第一折叠组件220与主轴组件210转动连接，第二壳体120可以通过第二折叠组件230与主轴组件210转动连接，第三部分330与第一折叠组件220、主轴组件210和第二折叠组件230相对，第一折叠组件220、主轴组件210和第二折叠组件230可以分别支撑第三部分330上对应的位置，第一折叠组件220、主轴组件210和第二折叠组件230与第三部分330之间具有第三腔室530，柔性导热片600与第一折叠组件220、主轴组件210和第二折叠组件230均滑动配合。
在本申请的实施例中，第一壳体110内设有发热单元400。当第二壳体120内也设有发热单元400 时，第一壳体110内的发热单元400运行时的发热量大于第二壳体120内的发热单元400运行时的发热量。
这样，柔性导热片600与第一壳体110之间的导热连接较为稳定，利于将第一壳体110内发热量较大的发热单元400产生的热量快速、有效的传导到柔性导热片600上，热量可通过柔性导热片600传导至第二壳体以及较为均匀的分散到第一壳体110上各处。
如图6-图8所示，柔性导热片600位于第一腔室510内的至少部分可以通过第二粘接层511粘接固定在第一壳体110上。
这样，柔性导热片600与第一壳体110固定较为容易，且粘接固定后较为稳固，柔性导热片600与第一壳体110之间不易发生相对运动。
可以理解的是，第二粘接层511可由导热粘胶形成。
在一些示例中，柔性导热片600与第一壳体110之间设有第二粘接层511，柔性导热片600通过第二粘接层511与第一壳体110粘接固定。
这样，柔性导热片600与第一壳体110之间的紧固连接较为稳定，柔性导热片600与第一壳体110之间不易移位，柔性导热片600与第一壳体110之间的导热连接稳定。此时，柔性导热片600可以与第一壳体110内的发热单元400接触，或者使柔性导热片600靠近第一壳体110内的发热单元400，以使第一壳体110内的发热单元400产生的热量可以传递到柔性导热片600上；也可使第一壳体110内的发热单元400与第一壳体110接触或者靠近第一壳体110，第一壳体110内的发热单元400产生的热量通过第一壳体110将热量传递到柔性导热片600上。
在第一壳体包括第一中框112、第一安装板114的示例中，可在柔性导热片600与第一安装板114之间设置第二粘接层511，柔性导热片600通过第二粘接层511与第一安装板114粘接固定。
在一些示例中，也可在柔性导热片600与第一壳体110内的发热单元400之间设置第二粘接层511，柔性导热片600通过第二粘接层511与第一壳体110内的发热单元400粘接固定，以使柔性导热片600通过第二粘接层511和第一壳体110内的发热单元400与第一壳体110紧固连接。
这样，柔性导热片600与第一壳体110内的发热单元400之间的相对位置稳定，利于将第一壳体110内的发热单元400产生的热量持续、稳定的传递到柔性导热片600上。此时，柔性导热片600可以与第一壳体110接触，或者使柔性导热片600靠近第一壳体110，以使柔性导热片600上的热量可以传递到第一壳体110上。第一壳体110内的发热单元400可以与第一壳体110接触或者靠近第一壳体，以使第一壳体110内的发热单元400与第一壳体导热连接，第一壳体110内的发热单元400也可通过柔性导热片600与第一壳体110导热连接。
在一些示例中，柔性导热片600与第一壳体110之间以及柔性导热片600与第一壳体110内的发热单元400之间均设有第二粘接层511，柔性导热片600通过第二粘接层511分别与第一壳体110和第一壳体110内的发热单元400粘接固定。
可以理解的是，柔性导热片600靠近第一壳体110和第一壳体110内的发热单元400，柔性导热片600可以与第一壳体110以及第一壳体110内的发热单元400进行热交换，在第二粘接层511由导热粘胶形成时，柔性导热片600也可以通过第二粘接层511与第一壳体110和发热单元400进行热交换。
这样，柔性导热片600与第一壳体110之间的紧固连接较为稳定，柔性导热片600与第一壳体110之间不易移位，且柔性导热片600与发热单元400之间的相对位置稳定，利于第一壳体110内的发热单元400产生的热量持续、稳定的传递到柔性导热片600上，也利于柔性导热片600上的热量持续、稳定的传递到第一壳体110上。
图9为本申请实施例提供的又一种可折叠设备的柔性导热片在柔性导热片的厚度方向上的一侧的示意图，图10为本申请实施例提供的又一种可折叠设备的柔性导热片在柔性导热片的厚度方向上的另一侧的示意图，图11为本申请实施例提供的又一种可折叠设备的柔性导热片的石墨片部和叠层部交接处在第二方向上的一侧的示意图。其中，第一方向为可折叠设备处于展平状态时，第一壳体110朝向第二壳体120的方向，第二方向为转轴机构200的长度延伸方向。
如图9-图11所示，并参看图5-图8，在本申请实施例中，柔性导热片600包括沿第一方向分布的石墨片部610和叠层部620，石墨片部610位于第一腔室510内，并与第一壳体110紧固连接，叠层部620沿第三部分330穿过第三腔室530，并延伸至第二腔室520内，叠层部620与第三部分330和转轴 机构200以及与第二部分320和第二壳体120均滑动配合。其中，叠层部620包括叠置的石墨片层621和弹性支撑层622，弹性支撑层622与石墨片层621紧固连接。
可以理解的是，石墨片部610和石墨片层621可以为一体结构。
这样，可以充分利用石墨良好的导热性能，柔性导热片600的热传导效率较高，利于提高可折叠设备的散热性能，可使柔性导热片600较为轻薄。叠层部620包括石墨片层621和弹性支撑层622，弹性支撑层622可以支撑石墨片层621，以使石墨片层621展平，并可带动石墨片层621滑动，如此，可以进一步降低石墨片层621在滑动的过程中产生褶皱的风险，柔性导热片600不易夹入转轴机构200以及转轴机构200与第一壳体110和第二壳体120之间的缝隙内，可降低柔性导热片600对可折叠设备的开合的影响。另外，柔性导热片600在可折叠设备处于各个状态下均较为平滑，可降低对柔性屏300显示的影响。
可以理解的是，弹性支撑层622可以在可折叠设备有展平状态切换为折叠状态时随第三部分330发生弯折，且可在可折叠设备由折叠状态切换为展平状态时随第三部分330恢复平整。弹性支撑层622可以包括弹性塑料或者弹性金属等。
在本申请实施例中，叠层部620与石墨片部610连接的一端位于第一腔室510内，叠层部620位于第一腔室510内的至少部分与第一壳体110紧固连接。这样，可以降低叠层部620连接石墨片部610的一端与石墨片部610之间产生相互的作用力而造成石墨片部610损坏或者叠层部620脱层的风险。
在一些实施例中，叠层部620位于第一腔室510的部分与第一中框112或者第一安装板114固定连接，在可折叠设备在展平状态和折叠状态之间活动时，叠层部620与第一中框112或者第一安装板114固定连接的部分可以不发生弯折，有利于提高叠层部620与第一中框112或者第一安装板114固定连接的部分的可靠性。
在本申请实施例中，弹性支撑层622包括金属，金属的刚性大于石墨片层的刚性。
这样，弹性支撑层622也可起到一定的导热效果，利于提高柔性导热片600的导热性能。此外，易于将弹性支撑层622的表面制造成光滑面，利于叠层部620的滑动。此外，弹性支撑层622的性能稳定、强度较高，在往复滑动的过程中不易损坏。
可以理解的是，金属可以为铜片、铝片、钢片等。
如图9、图10所示，在本申请实施例中，柔性导热片600位于第一腔室510内的部分开设有定位孔611，第一壳体110设有与定位孔611对应的定位凸起(未示出)，定位凸起伸入对应的定位孔611内。
可以理解的是，定位凸起可设于第一腔室510内，定位凸起与第一壳体110紧固连接，定位凸起伸入对应的定位孔611内后，可使柔性导热片600与第一壳体110定位。
这样，便于柔性导热片600装配时能够准确安装在第一壳体110预设的位置，且柔性导热片600装配到第一壳体110上后，也更为稳定，不易移位。
可以理解的是，在柔性导热片600可以包括石墨片部610和叠层部620的示例中，定位孔611可以开设于石墨片部610。叠层部620位于第一腔室510内的部分也可开设定位孔611
柔性导热片600上可以设置多个定位孔611，定位孔611可以为通孔。
在第一壳体110包括第一安装板的示例中，定位凸起可以设置于第一安装板上。
如图9-图11所示，在本申请实施例中，石墨片部610与石墨片层621是一体结构，石墨片部610的厚度可以大于石墨片层621的厚度。
这样，利于设置弹性支撑层622，且利于减小叠层部620的厚度，利于叠层部620在第二腔室520和第三腔室530内的滑动装配，可减小对第二腔室520和第三腔室530内部空间的限制。
可以理解的是，可以通过对一整片的石墨片的一侧进行切削，以在被切削减薄后的位置形成石墨片层621，在未被切削位置形成石墨片部610。
如图11所示，在本申请实施例中，弹性支撑层622的厚度小于石墨片层621的厚度。
这样，叠层部620的热传导效率较高，利于提高可折叠设备的散热性能。
在本申请实施例中，石墨片层621和弹性支撑层622之间设有第一粘接层629，石墨片层621和弹性支撑层622通过第一粘接层629粘接固定。
这样，石墨片层621和弹性支撑层622之间固定容易，且粘接固定后稳固，不易移位。利于弹性 支撑层622对石墨片层621的支撑，石墨片层621不易产生褶皱。
可以理解的是，石墨片层621和弹性支撑层622的重叠位置均设有第一粘接层629，均通过第一粘接层629粘接固定，第一粘接层629可以由导热粘胶形成。
在一些示例中，石墨片部610的厚度等于叠层部620的厚度。
这样，柔性导热片600更加平整，可降低柔性导热片600对柔性屏300显示造成影响的风险。
示例性的，石墨片部610的厚度可以为0.1mm，可使石墨片层621的厚度为0.07mm、第一粘接层629的厚度为0.01mm、弹性支撑层622的厚度为0.02mm。
示例性的，石墨片部610的厚度可以为0.12mm，可使石墨片层621的厚度为0.08mm、第一粘接层629的厚度为0.01mm、弹性支撑层622的厚度为0.03mm。
图12为本申请实施例提供的又一种可折叠设备的柔性导热片的石墨片部和叠层部交接处在第二方向上的一侧的示意图。
如图12所示，在一些示例中，石墨片部610的厚度大于叠层部620的厚度。
这样，可以减小对第二腔室520和第三腔室530内部空间的限制，利于柔性导热片600与第二部分320、第三部分330、第二壳体120和转轴机构200的滑动配合。
示例性的，石墨片部610的厚度可以为0.1mm，可使石墨片层621的厚度为0.06mm、第一粘接层629的厚度为0.01mm、弹性支撑层622的厚度为0.02mm。
示例性的，石墨片部610的厚度可以为0.12mm，可使石墨片层621的厚度为0.08mm、第一粘接层629的厚度为0.01mm、弹性支撑层622的厚度为0.02mm。
可以理解的是，石墨片部610的厚度可以根据第一腔室510在可折叠设备的厚度方向的高度而定，叠层部620的厚度可以根据第二腔室520和第三腔室530在可折叠设备的厚度方向的高度而定，石墨片层621和弹性支撑层622的厚度可以根据叠层部620的厚度、叠层部620所需的导热性能和弯折性能而定。
在一些示例中，第一壳体110朝向第一部分310的一侧设有第一沉台，第二壳体120朝向第二部分320的一侧设有第二沉台，转轴机构200朝向第三部分330的一侧设有第三沉台，第一沉台与第一部分310之间形成第一腔室510，第二沉台与第二部分320之间形成第二腔室520，第三沉台与第三部分330之间形成第三腔室530，至少部分柔性导热片600设置于第一沉台、第二沉台和第三沉台上。在一些实施例中，至少部分叠层部620位于第二沉台和/或第三沉台。当可折叠设备在展平状态与折叠状态之间活动过程中，叠层部620相对第二壳体和/或转轴机构滑动，通过设置沉台，对叠层部滑动限位，有利于提升叠层部的结构可靠性。这样，还可以降低柔性导热片600对柔性屏300显示造成影响的风险。
图13为本申请实施例提供的又一种可折叠设备的第三部分和叠层部处的一个垂直于第二方向的截面的示意图。
如图13所示，并参看图6-图8，在本申请实施例中，弹性支撑层622紧固连接在石墨片层621靠近柔性屏300的侧面上。
这样，石墨片层621靠近第二壳体120，利于提高柔性导热片600与第二壳体120之间的热传导效率。
如图13所示，在本申请实施例中，第三腔室530内设有用于降低柔性导热片600与第三部分330和/或转轴机构200之间的摩擦的润滑介质700。这样，利于柔性导热片600的滑动。
可以理解的是，润滑介质700可以为润滑脂、润滑膜等。
在一些示例中，转轴机构200与柔性导热片600之间设有润滑介质700。
这样，可以降低转轴机构200对柔性导热片600的滑动造成卡阻的风险。
在一些示例中，第三部分330与柔性导热片600之间设有润滑介质700。
这样，可以降低柔性导热片600在滑动的过程中对柔性屏300造成的影响。
在一些示例中，转轴机构200与柔性导热片600之间以及第三部分330与柔性导热片600之间均设有润滑介质700。
这样，柔性导热片600与第三部分330和转轴机构200之间的摩擦均较小，利于柔性导热片600的滑动，且对柔性屏300显示造成影响的风险较小。
图14为图5中A部放大图。
如图14所示，并参看图9，在本申请实施例中，弹性支撑层622包括在第一方向上远离石墨片部610的第一端623，石墨片层621包括在第一方向上远离石墨片部610的第二端624，第一端623凸出于第二端624。
图15为本申请实施例提供的又一种可折叠设备处于展平状态时设有柔性屏的一侧隐藏柔性屏和柔性导热片后的示意图，图16为本申请实施例提供的又一种可折叠设备由展平状态切换为折叠状态的过程中叠层部与麦拉之间的配合示意图。
如图15、图16所示，并参看图14，第二壳体120紧固连接有麦拉800，麦拉800位于第二腔室520内，麦拉800在第一方向与第二端624间隔设置，麦拉800的至少部分在第二壳体120的厚度方向与弹性支撑层622凸出第二端624的部分交叠，第一端623与麦拉800滑动配合。
可以理解的是，可折叠设备处于折叠状态、展平状态以及在折叠状态和展平状态切换过程中的中间状态时，麦拉800均在第一方向与第二端624间隔设置，麦拉800的至少部分在第二壳体120的厚度方向均与弹性支撑层622凸出第二端624的部分交叠。
麦拉800可以设置与第二壳体120在第一方向上远离转轴机构200的一端。
这样，柔性导热片600在与第二壳体120相对滑动的过程中，第一端623与麦拉800触碰，不会触碰到第二壳体120，可以降低第一端623触碰第二壳体120而造成异响的风险。
需要说明的是，麦拉600的厚度可以小于石墨片层621的厚度。
在本申请实施例中，麦拉800可以为铁氟龙麦拉。这样，铁氟龙麦拉有自润滑的性能，可以减小弹性支撑层622与麦拉800之间的摩擦，利于柔性导热片600的滑动。
图17为图10中B部的放大图。
如图17所示，在本申请实施例中，弹性支撑层622包括在第二方向上相对的第一侧625和第二侧626，石墨片层621包括在第二方向上相对的第三侧627和第四侧628，第一侧625与第三侧627相邻，第二侧626与第四侧628相邻，第三侧627凸出于第一侧625，第四侧628凸出于第二侧626。石墨片层621凸出第一侧625的部分在第二方向的宽度小于第二腔室520在可折叠设备的厚度方向的高度，且小于第三腔室530在可折叠设备的厚度方向的高度。石墨片层621凸出第二侧626的部分在第二方向的宽度小于第二腔室520在可折叠设备的厚度方向的高度，且小于第三腔室530在可折叠设备的厚度方向的高度。
这样，石墨片层621凸出第一侧625的部分以及凸出第二侧626的部分可以起到阻拦弹性支撑层622在第二方向的两侧触碰第二壳体120和/或转轴机构200，可以降低弹性支撑层622在第二方向的两侧触碰第二壳体120和/或转轴机构200而造成异响的风险。
可以理解的是，石墨片层621凸出第一侧625的部分以及凸出第二侧626的部分通过石墨片层621与弹性支撑层622重叠的部分与弹性支撑层622紧固连接，石墨片层621凸出第一侧625的部分以及凸出第二侧626的部分在第二方向的宽度均较窄，弹性支撑层622在滑动的过程中，石墨片层621凸出第一侧625的部分以及凸出第二侧626的部分会在弹性支撑层622的带动下一起运动，且即便石墨片层621凸出第一侧625的部分以及凸出第二侧626的部分产生褶皱，也不易挤压到柔性屏300，对柔性屏300的显示造成影响的风险较小。
图18为本申请实施例提供的又一种可折叠设备处于展平状态时设有柔性屏一侧的示意图。
如图18所示，并参看图5，在本申请实施例中，第一部分310通过第一粘接条111与第一壳体110粘接固定，第二部分320通过第二粘接条121与第二壳体120粘接固定。第一部分310、第一粘接条111和第一壳体110之间具有第一腔室510，第二部分320、第二粘接条121与第二壳体120之间具有第二腔室520。
这样，第一粘接条111可将第一部分310粘接固定在第一壳体110上，且第一粘接条111可使第一部分310和第一壳体110间隔出用于容纳柔性屏300的第一腔室510，第二粘接条121可将第二部分320粘接固定在第二壳体120上，且第二粘接条121可使第二部分320和第二壳体120间隔出用于供柔性屏300滑动的第二腔室520，不需要单独设置沉台等结构来与柔性屏300间隔形成用于安装柔性导热片600的第一腔室510和第二腔室520，可使可折叠设备结构更加简单，也可使可折叠设备更加轻薄。
可以理解的是，第一粘接条111的厚度可大于柔性导热片600在第一腔室510内的部分的厚度。示例性的，第一粘接条111可以比柔性导热片600在第一腔室510内的部分厚0.2mm，例如，柔性导热 片600在第一腔室510内的部分的厚度可以为0.1mm，第一粘接条111的厚度可以为0.3mm。
第二粘接条121的厚度可大于柔性导热片600在第二腔室520内的部分的厚度。示例性的，第二粘接条121可以比柔性导热片600在第二腔室520内的部分厚0.2mm，例如，柔性导热片600在第二腔室520内的部分的厚度可以为0.1mm，第二粘接条121的厚度可以为0.3mm。
在第一壳体110包括第一安装板114的示例中，第一部分310可以通过第一粘接条111与第一安装板114粘接固定，第一安装板114、第一粘接条111和第一部分310之间可以形成第一腔室510。在第二壳体120包括第二安装板124的示例中，第二部分320可以通过第二粘接条121与第二安装板124粘接固定，第二安装板124、第二粘接条121和第二部分320之间可以形成第二腔室520。
在本申请实施例中，第一粘接条111设于第一部分310的边缘，第二粘接条121设于第二部分320的边缘。
这样，第一腔室510和第二腔室520的尺寸较大，利于增大柔性屏300在第二腔室520内滑动部分以及紧固连接在第一腔室510内的部分的尺寸，利于可折叠设备的散热效率。
图19为本申请实施例提供的又一种可折叠设备处于展平状态时设有柔性屏一侧的示意图。
如图19所示，在一些示例中，柔性导热片600位于第二腔室520和第三腔室530内的部分可以包括沿转轴机构200的轴向间隔分布、且相互平行的多段。
在柔性导热片600包括石墨片部610和叠层部620的示例中，柔性导热片600可以包括多段沿转轴机构200的轴向间隔分布、且相互平行的叠层部620，每个叠层部620的一端均与石墨片部610连接。
这样，可充分利用第二腔室520和第三腔室530的空间来布置柔性导热片600，利于提高柔性导热片600与第二壳体120之间的导热性能，且设置的柔性导热片600的数量较少，可靠性较高。
图20为本申请实施例提供的又一种可折叠设备处于展平状态时设有柔性屏一侧的示意图。
如图20所示，在一些柔性导热片600包括多段叠层部620的示例中，柔性导热片600的每个叠层部620与石墨片部610连接的一端均位于第一腔室510内，每个叠层部620位于第一腔室510内的至少部分均与第一壳体110紧固连接，且每个叠层部620与第一壳体110紧固连接的部分可以连接为一体。这样，可降低因石墨片部610连接的多个叠层部620对石墨片部610产生的应力不均而造成石墨片部610易损坏的风险。
图21为本申请实施例提供的又一种可折叠设备处于展平状态时设有柔性屏一侧的示意图。
如图21所示，在一些示例中，可折叠设备可以包括沿转轴机构200的轴向分布的多个柔性导热片600。这样，可以减小对第一腔室510的空间的限制，利于充分利用第一腔室510的空间来布置柔性导热片600，利于提高柔性导热片600与第一壳体110之间的导热性能。
在本申请实施例的描述中，需要说明的是，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”应作广义理解，例如，可以是固定连接，也可以是通过中间媒介间接相连，可以是两个元件内部的连通或者两个元件的相互作用关系。对于本领域的普通技术人员而言，可以根据具体情况理解上述术语在本申请实施例中的具体含义。
本申请实施例的说明书和权利要求书及上述附图中的术语“第一”、“第二”、“第三”、“第四”等(如果存在)是用于区别类似的对象，而不必用于描述特定的顺序或先后次序。
最后应说明的是：以上各实施例仅用以说明本申请实施例的技术方案，而非对其限制；尽管参照前述各实施例对本申请实施例进行了详细的说明，本领域的普通技术人员应当理解：其依然可以对前述各实施例所记载的技术方案进行修改，或者对其中部分或者全部技术特征进行等同替换；而这些修改或者替换，并不使相应技术方案的本质脱离本申请实施例各实施例技术方案的范围。

Claims (18)

  1. 一种可折叠设备，其特征在于，包括第一壳体(110)、第二壳体(120)、发热单元(400)、转轴机构(200)、柔性屏(300)和柔性导热片(600)，所述第一壳体(110)和所述第二壳体(120)通过所述转轴机构(200)转动连接，所述第一壳体(110)和所述第二壳体(120)中的至少一个内设有所述发热单元(400)；
    所述柔性屏(300)包括第一部分(310)、第二部分(320)和第三部分(330)，所述第一部分(310)安装于所述第一壳体(110)上，且所述第一部分(310)与所述第一壳体(110)之间具有第一腔室(510)，所述第二部分(320)安装于所述第二壳体(120)上，且所述第二部分(320)与所述第二壳体(120)之间具有第二腔室(520)，所述第三部分(330)与所述转轴机构(200)相对，且所述第三部分(330)与所述转轴机构(200)之间具有第三腔室(530)，所述第三腔室(530)的两端分别与所述第一腔室(510)和所述第二腔室(520)连通；
    所述柔性导热片(600)设于所述第一腔室(510)、所述第二腔室(520)和所述第三腔室(530)形成的空间内，所述柔性导热片(600)位于所述第一腔室(510)内的至少部分与所述第一壳体(110)紧固连接，所述柔性导热片(600)沿所述第三部分(330)穿过所述第三腔室(530)，并延伸至所述第二腔室(520)内，所述柔性导热片(600)与所述第三部分(330)和所述转轴机构(200)以及与所述第二部分(320)和所述第二壳体(120)均滑动配合；
    所述柔性导热片(600)与所述发热单元(400)、所述第一壳体(110)和所述第二壳体(120)均导热连接。
  2. 根据权利要求1所述的可折叠设备，其特征在于，所述柔性导热片(600)包括石墨片部(610)和叠层部(620)，所述石墨片部(610)位于所述第一腔室(510)内，并与所述第一壳体(110)紧固连接，所述叠层部(620)沿所述第三部分(330)穿过所述第三腔室(530)，并延伸至所述第二腔室(520)内，所述叠层部(620)与所述第三部分(330)和所述转轴机构(200)以及与所述第二部分(320)和所述第二壳体(120)均滑动配合；
    其中，所述叠层部(620)包括叠置的石墨片层(621)和弹性支撑层(622)，所述弹性支撑层(622)与所述石墨片层(621)紧固连接。
  3. 根据权利要求2所述的可折叠设备，其特征在于，所述叠层部(620)与所述石墨片部(610)连接的一端位于所述第一腔室(510)内，所述叠层部(620)位于所述第一腔室(510)内的至少部分与所述第一壳体(110)紧固连接。
  4. 根据权利要求2或3所述的可折叠设备，其特征在于，所述弹性支撑层(622)包括金属，所述金属的刚性大于所述石墨片层(621)的刚性。
  5. 根据权利要求2-4任一项所述的可折叠设备，其特征在于，所述弹性支撑层(622)紧固连接在所述石墨片层(621)靠近所述柔性屏(300)的侧面上。
  6. 根据权利要求5所述的可折叠设备，其特征在于，所述弹性支撑层(622)包括在第一方向上远离所述石墨片部(610)的第一端(623)，所述石墨片层(621)包括在所述第一方向上远离所述石墨片部(610)的第二端(624)，所述第一端(623)凸出于所述第二端(624)；
    所述第二壳体(120)紧固连接有麦拉(800)，所述麦拉(800)位于所述第二腔室(520)内，所述麦拉(800)在所述第一方向与所述第二端(624)间隔设置，所述麦拉(800)的至少部分在所述第二壳体(120)的厚度方向与所述弹性支撑层(622)凸出所述第二端(624)的部分交叠，所述第一端(623)与所述麦拉(800)滑动配合；
    其中，所述第一方向为所述可折叠设备处于展平状态时，所述第一壳体(110)朝向所述第二壳体(120)的方向。
  7. 根据权利要求6所述的可折叠设备，其特征在于，所述麦拉(800)为铁氟龙麦拉。
  8. 根据权利要求2-7任一项所述的可折叠设备，其特征在于，所述弹性支撑层(622)包括在第二方向上相对的第一侧(625)和第二侧(626)，所述石墨片层(621)包括在所述第二方向上相对的第三侧(627)和第四侧(628)，所述第一侧(625)与所述第三侧(627)相邻，所述第二侧(626)与所述第四侧(628)相邻，所述第三侧(627)凸出于所述第一侧(625)，所述第四侧(628)凸出于所述第二侧(626)；
    所述石墨片层(621)凸出所述第一侧(625)的部分在所述第二方向的宽度小于所述第二腔室(520)在所述可折叠设备的厚度方向的高度，且小于所述第三腔室(530)在所述可折叠设备的厚度方向的高度；
    所述石墨片层(621)凸出所述第二侧(626)的部分在所述第二方向的宽度小于所述第二腔室(520)在所述可折叠设备的厚度方向的高度，且小于所述第三腔室(530)在所述可折叠设备的厚度方向的高度；
    其中，所述第二方向为所述转轴机构(200)的长度延伸方向。
  9. 根据权利要求2-8任一项所述的可折叠设备，其特征在于，所述石墨片部(610)与所述石墨片层 (621)是一体结构，所述石墨片部(610)的厚度大于所述石墨片层(621)的厚度。
  10. 根据权利要求2-9任一项所述的可折叠设备，其特征在于，所述弹性支撑层(622)的厚度小于所述石墨片层(621)的厚度。
  11. 根据权利要求2-10任一项所述的可折叠设备，其特征在于，所述石墨片层(621)和所述弹性支撑层(622)之间设有第一粘接层(629)，所述石墨片层(621)和所述弹性支撑层(622)通过所述第一粘接层(629)粘接固定。
  12. 根据权利要求1-11任一项所述的可折叠设备，其特征在于，当所述第一壳体(110)内设有所述发热单元(400)时，所述第一壳体(110)内的所述发热单元(400)沿所述第一壳体(110)厚度方向的投影位于所述柔性导热片(600)在所述第一腔室(510)内的部分沿所述第一壳体(110)厚度方向的投影的范围内。
  13. 根据权利要求1-12任一项所述的可折叠设备，其特征在于，所述第一壳体(110)内设有所述发热单元(400)；
    当所述第二壳体(120)内也设有所述发热单元(400)时，所述第一壳体(110)内的所述发热单元(400)运行时的发热量大于所述第二壳体(120)内的所述发热单元(400)运行时的发热量。
  14. 根据权利要求1-13任一项所述的可折叠设备，其特征在于，所述转轴机构(200)与所述柔性导热片(600)之间设有润滑介质(700)；
    或者，所述第三部分(330)与所述柔性导热片(600)之间设有润滑介质(700)；
    或者，所述转轴机构(200)与所述柔性导热片(600)之间以及所述第三部分(330)与所述柔性导热片(600)之间均设有润滑介质(700)。
  15. 根据权利要求1-14任一项所述的可折叠设备，其特征在于，所述柔性导热片(600)位于所述第一腔室(510)内的至少部分通过第二粘接层(511)粘接固定在所述第一壳体(110)上。
  16. 根据权利要求1-15任一项所述的可折叠设备，其特征在于，所述柔性导热片(600)位于所述第一腔室(510)内的部分开设有定位孔(611)，所述第一壳体(110)设有与所述定位孔(611)对应的定位凸起，所述定位凸起伸入对应的定位孔(611)内。
  17. 根据权利要求1-16任一项所述的可折叠设备，其特征在于，所述第一部分(310)通过第一粘接条(111)与所述第一壳体(110)粘接固定，所述第二部分(320)通过第二粘接条(121)与所述第二壳体(120)粘接固定；
    所述第一部分(310)、所述第一粘接条(111)和所述第一壳体(110)之间具有所述第一腔室(510)，所述第二部分(320)、所述第二粘接条(121)与所述第二壳体(120)之间具有所述第二腔室(520)。
  18. 根据权利要求17所述的可折叠设备，其特征在于，所述第一粘接条(111)设于所述第一部分(310)的边缘，所述第二粘接条(121)设于所述第二部分(320)的边缘。
PCT/CN2023/110524 2022-08-02 2023-08-01 可折叠设备 Ceased WO2024027698A1 (zh)

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