Heat dissipation module and folding equipment

Abstract

The invention relates to a heat dissipation module and folding equipment. The heat dissipation module comprises a flexible cavity; a communicating channel is defined by the pipeline and the flexible cavity, and a refrigerant poured into the communicating channel can conduct heat during circulation so as to achieve heat dissipation. The flexible cavity of the heat dissipation module can generate flexible deformation during bending or folding, and the problem that the heat dissipation effect of the heat dissipation module is poor due to the fact that the heat dissipation material is bent and damaged is solved.

Description

Technical Field

[0001] The present disclosure relates to the field of heat dissipation of electronic equipment, and in particular to a heat dissipation module and a folding device. Background Art

[0002] In the field of electronic devices, with the development of high integration and high performance of electronic devices such as mobile phones and tablets, the heat generation of electronic devices is becoming more and more serious. It is becoming more and more important to reduce the maximum surface temperature of the equipment under limited space design, improve the heat dissipation level and enhance the user experience.

[0003] In the development of electronic devices, there are devices that need to be able to bend or fold flexibly, such as folding mobile phones, folding tablets, bendable wearable glasses, smart bracelets and other devices. These devices use heat dissipation materials such as graphite materials to dissipate heat at the bent or curved positions. However, the molecular chains of the bent graphite sheets will be damaged due to the bending, causing the conduction efficiency of the graphite heat sink to drop significantly, affecting the heat dissipation speed and effect. Summary of the invention

[0004] In order to overcome the problems existing in the related art, the present disclosure provides a heat dissipation module and a folding device. The flexible cavity of the heat dissipation module proposed in the present disclosure can be flexibly deformed when bent or folded, thereby reducing the problem of poor heat dissipation effect caused by bending and damage of the heat dissipation material of the heat dissipation module.

[0005] The present disclosure provides a heat dissipation module for use in a folding device, including:

[0006] Flexible cavity;

[0007] The pipeline and the flexible cavity form a communication channel, and the refrigerant filled in the communication channel can conduct heat to achieve heat dissipation when circulating.

[0008] In some embodiments, the heat dissipation module further includes:

[0009] The power structure is installed at the position where the pipeline and the flexible cavity are connected, and is used to push the refrigerant entering the power structure from the pipeline into the flexible cavity.

[0010] In some embodiments, the power structure is located in the communication channel; or,

[0011] The power structure is communicated with the pipeline and the flexible cavity respectively, and forms the communication channel.

[0012] In some embodiments, the power structure surrounding the communication channel includes:

[0013] A housing having an accommodating space;

[0014] a first drainage channel communicating with the first side of the housing and the pipeline;

[0015] a second drainage channel communicating with a second side of the shell and the flexible cavity, wherein the second side and the first side are opposite sides of the shell;

[0016] The power assembly is located in the shell and is used to push the refrigerant entering the shell from the first drainage channel into the second drainage channel.

[0017] In some embodiments, the power assembly includes:

[0018] A rotating member, located in the housing;

[0019] The driving motor is spaced apart from the shell and connected to the rotating member, and is used for driving the rotating member to rotate so as to push the refrigerant.

[0020] In some embodiments, the rotating member comprises:

[0021] A rotating disk is disposed in the housing, and a rotating plane of the rotating disk is parallel to a flow direction of the refrigerant when the rotating disk rotates;

[0022] An extension rod is located in the shell and connected to the edge of the turntable, and is used to push the refrigerant entering the shell from the first drainage channel into the second drainage channel following the rotation of the turntable.

[0023] In some embodiments, the power assembly further comprises:

[0024] A slide rail, arranged along the edge of the shell and surrounding the rotating disk and the extension rod;

[0025] A slider, movably embedded in the slide rail;

[0026] One end of the extension rod is connected to the edge of the rotating disk, and the other end of the extension rod is connected to the sliding block.

[0027] In some embodiments, the extension rod comprises a plurality of;

[0028] A plurality of the extension rods are distributed at intervals between the turntable and the shell wall of the shell, and the accommodating space between the turntable and the shell wall of the shell is divided into a plurality of spaces of different volumes by the plurality of the extension rods, so that the refrigerant flowing into one of the spaces from the first drainage channel can flow out from the second drainage channel after being squeezed at the position of the second drainage channel.

[0029] In some embodiments, the plurality of extension rods are all recessed in the direction opposite to the rotation direction of the turntable, and the connection points between the plurality of extension rods and the turntable are evenly spaced and distributed on the edge of the turntable.

[0030] In some embodiments, the distance from the rotating disk to the first drainage channel is greater than the distance from the rotating disk to the second drainage channel.

[0031] In some embodiments, the power assembly includes:

[0032] The vibrating member is arranged on the shell wall of the shell near the first drainage channel, and is used to vibrate in the direction of the flexible cavity to push the refrigerant entering the shell from the pipeline to flow into the flexible cavity.

[0033] In some embodiments, the vibrating element includes a piezoelectric ceramic piece.

[0034] In some embodiments, the flexible cavity includes two inner walls opposite to each other in the thickness direction;

[0035] One of the inner walls is formed with a plurality of support portions which are spaced apart in a direction toward the other inner wall, and the refrigerant can flow in a gap between two adjacent support portions.

[0036] In some embodiments, the support portion includes: a support convex hump, a plurality of the support convex hump forming a plurality of rows of support convex hump groups in the flow direction of the refrigerant;

[0037] Wherein, the plurality of supporting convex humps in each row of the supporting convex hump group are arranged at intervals and parallel to the flow direction.

[0038] In some embodiments, the conduit includes: a first conduit and a second conduit connected at opposite sides of the flexible cavity;

[0039] The flexible cavity comprises a first cavity and a second cavity which are arranged at intervals;

[0040] The first pipe is connected to the inlet of the first cavity and the outlet of the second cavity;

[0041] The second pipe communicates with the inlet of the second cavity and the outlet of the first cavity.

[0042] In some embodiments, the power structure of the heat dissipation module includes a first power structure, wherein the first power structure is connected between the first pipe and the inlet of the first cavity;

[0043] and / or,

[0044] The power structure of the heat dissipation module includes a second power structure; wherein the second power structure is connected between the inlet of the second cavity and the second pipeline.

[0045] In some embodiments, the first pipe and the second pipe have different bending states;

[0046] Wherein, a positioning mark is set on the first pipe, and the positioning mark is used to locate the installation position of the heat dissipation module.

[0047] In some embodiments, the heat dissipation module includes a flexible heat dissipation film;

[0048] The flexible cavity and the pipeline are formed in the flexible heat dissipation film.

[0049] In some embodiments, the flexible heat dissipation film includes a metal film or a plastic film.

[0050] In some embodiments, the heat dissipation module further includes:

[0051] A heat sink covers the pipe.

[0052] The present disclosure also provides a folding device, the folding device comprising:

[0053] The middle frame comprises a folding portion and a first folding frame body and a second folding frame body connected to opposite sides of the folding portion along a first direction;

[0054] The heat dissipation module proposed in the above embodiments of the present disclosure;

[0055] Wherein, the flexible cavity of the heat dissipation module is distributed at the folding portion, and the pipelines of the heat dissipation module are distributed at the first folding frame and the second folding frame.

[0056] In some embodiments, the heat dissipation module is embedded in the middle frame; or,

[0057] The heat dissipation module is sandwiched between the middle frame and the display screen of the folding device along the second direction; or,

[0058] The heat dissipation module is sandwiched between the middle frame and the back shell of the folding device along the second direction.

[0059] In some embodiments, the folding device has a hot zone and a cold zone; the heat of the folding device in the hot zone is greater than the heat of the folding device in the cold zone;

[0060] The orthographic projections of the first pipe of the heat dissipation module and the hot zone along the second direction at least partially overlap;

[0061] The orthographic projections of the first pipeline, the second pipeline of the heat dissipation module, and the power structure of the heat dissipation module along the second direction are at least partially located in the cold zone.

[0062] In some embodiments, the mainboard of the folding device is located in the hot zone.

[0063] In some embodiments, the folding device further comprises:

[0064] A control module is arranged on the main board and electrically connected to the driving motor of the heat dissipation module or the vibrating member of the heat dissipation module, and is used to control the driving motor to drive the rotating member of the heat dissipation module to rotate or control the vibrating member to vibrate when it is detected that the working heat of the folding device exceeds the heat threshold.

[0065] The technical solution provided by the embodiments of the present disclosure may have the following beneficial effects:

[0066] The heat dissipation module proposed in the embodiment of the present disclosure has a flexible cavity, and the flexible cavity can form a connecting channel with the pipeline; in this way, the flexible cavity can undergo flexible deformation when bent or folded, and can still maintain the transmission of refrigerant in the flexible deformation state, effectively balancing the bending resistance and thermal conductivity of the heat dissipation module, and reducing the problem of poor heat dissipation effect of the heat dissipation module due to damage to the heat dissipation material by bending; and when the flexible cavity is set in a bending device or a bendable device, a larger area of ​​heat dissipation is achieved based on the connecting channel, thereby improving the speed and uniformity of the diffusion of the working heat of the equipment.

[0067] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0068] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and, together with the description, serve to explain the principles of the present disclosure.

[0069] Figure 1a is a schematic diagram showing the heat dissipation principle of an electronic device according to an exemplary embodiment;

[0070] Figure 1b is a schematic diagram of the heat dissipation principle of a folding device according to an exemplary embodiment;

[0071] Figure 2 is a schematic diagram of the heat dissipation principle of a parallel dual stereoscopic heat dissipation system according to an exemplary embodiment;

[0072] Figure 3 is a schematic diagram of a micro airbag structure according to an exemplary embodiment;

[0073] Figure 4 is a structural schematic diagram of a heat dissipation module according to an exemplary embodiment;

[0074] Figure 5a is a schematic structural diagram of a flexible cavity in a flexible deformation state according to an exemplary embodiment;

[0075] Figure 5b is a schematic structural diagram of a flexible cavity in an expanded state according to an exemplary embodiment;

[0076] Figure 6 is a schematic structural diagram of a power structure according to an exemplary embodiment;

[0077] Figure 7 is a schematic diagram of a connection structure between a rotating member and an electronic motor according to an exemplary embodiment;

[0078] Figure 8 is a structural exploded diagram of a rotating member according to an exemplary embodiment;

[0079] Fig. 9 is a schematic structural diagram of a power assembly proposed according to an exemplary embodiment;

[0080] Fig.10a is a first schematic diagram showing the rotation of a rotating member inside a housing according to an exemplary embodiment;

[0081] Fig.10b is a schematic diagram of the rotation of the rotating member inside the housing according to an exemplary embodiment Figure 2 ;

[0082] Fig.11 is a schematic diagram of assembling a flexible cavity and a pipeline according to an exemplary embodiment;

[0083] Fig.12 is a schematic diagram showing the arrangement of a heat sink according to an exemplary embodiment;

[0084] Fig.13 is a schematic structural diagram of a folding device according to an exemplary embodiment;

[0085] Fig.14 is a structural exploded diagram of a folding device according to an exemplary embodiment;

[0086] Fig.15 is a structural block diagram 1 of a folding device according to an exemplary embodiment;

[0087] Fig.16 A structural frame of a folding device according to an exemplary embodiment is shown Figure 2 .

[0088] Reference numerals:

[0089] X, graphite sheet; a, system-level chip; b, hinge structure; Y, micro airbag structure; A, first dynamic space; B, second dynamic space; C, third dynamic space; D, bending area; s, first direction;

[0090] 1. Flexible cavity; 11. Support part; 12. First cavity; 13. Second cavity; 2. Pipe; 21. First pipeline; 211. Heat source mark; 22. Second pipeline; 3. Flexible heat dissipation film; 4. Power structure; 41. Shell; 42. First drainage channel; 43. Second drainage channel; 44. Rotating member; 441. Turntable; 442. Extension rod; 443. Fixing pin; 45. Driving motor; 451. Control circuit board; 46. Slide rail; 47. Slider; 48. First power structure; 49. Second power structure; 5. Heat sink; 6. Middle frame; 61. Folding part; 62. First folding frame; 63. Second folding frame;

[0091] 800, folding device; 802, processing component; 804, memory; 806, power component; 808, multimedia component; 810, audio component; 812, input and output interface; 814, sensor component; 816, communication component; 820, processor. DETAILED DESCRIPTION

[0092] Here, exemplary embodiments will be described in detail, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present disclosure. Instead, they are only examples of devices and methods consistent with some aspects of the present disclosure.

[0093] For the heat dissipation function of traditional electronic devices, one way is to attach a heat dissipation graphite sheet to the middle frame of the electronic device and use the thermal conductivity of graphite to achieve local heat diffusion and distribution. Figure 1a , Figure 1a is a schematic diagram showing the heat dissipation principle of an electronic device according to an exemplary embodiment. Figure 1a The graphite sheet X shown conducts the working heat generated by the system-level chip a in the electronic device in the longitudinal and transverse directions to achieve the diffusion of the working heat. Another way is to achieve heat circulation based on heat pipe technology. For example, a copper tube is set in the electronic device, and a low-boiling point liquid is poured into the copper tube. The low-boiling point liquid evaporates after being heated near the heat source, condenses at the colder end of the copper tube, and then flows back to the heat source, so that heat dispersion is achieved based on the circulation of the liquid.

[0094] With the development of foldable devices, heat dissipation of foldable devices has become a major difficulty in improving user experience and practicality. At present, due to the design of foldable devices, the hinge part of the folding part is usually not equipped with heat dissipation materials or only equipped with conventional heat dissipation materials, which cannot better balance the bendability and high thermal conductivity; see Figure 1b , Figure 1b is a schematic diagram of the heat dissipation principle of a folding device according to an exemplary embodiment; Figure 1b As shown, the folding device has a hinge structure b along the folding portion, and the left folding body and the right folding body connected by the hinge structure b can be folded along the hinge structure b. The hinge structure b is not covered with heat dissipation material, and the left folding body and the right folding body of the heat dissipation system of the folding device are two independent parts and cannot dissipate heat in an integrated manner.

[0095] In view of the above difficulties, this embodiment proposes a parallel dual stereo heat dissipation system and an innovative micro airbag heat dissipation structure, see Figure 2 and Figure 3 , Figure 2 is a schematic diagram of the heat dissipation principle of a parallel dual stereoscopic heat dissipation system according to an exemplary embodiment; Figure 3 is a schematic diagram of a micro airbag structure according to an exemplary embodiment; Figure 2 As shown, a powerful heat dissipation system is designed on the left and right folding bodies of a folding device such as a folding mobile phone, and the two sides are connected to achieve a new butterfly heat dissipation. Figure 3 As shown, the folding part is improved through graphite sintering process and laminating technology to create a heat dissipation structure with micro-airbag bionic knuckle skin. The micro-airbag structure Y is arranged on the graphite heat conductive sheet on the folding part of the folding screen mobile phone to further realize double-sided interconnected heat dissipation and improve heat dissipation uniformity.

[0096] However, since the folding part of the folding device needs to be bent, the molecular chains of the bent graphite sheet will be damaged due to the bending, causing the conduction efficiency of the graphite sheet to drop significantly, affecting the heat dissipation speed and effect.

[0097] In order to overcome the above problems, the present disclosure further proposes a heat dissipation module. Figure 4 , Figure 4 is a schematic diagram of the structure of a heat dissipation module according to an exemplary embodiment. Figure 4 As shown, the heat dissipation module includes:

[0098] Flexible cavity 1;

[0099] The pipeline 2 and the flexible cavity 1 form a communication channel, and the refrigerant filled in the communication channel can conduct heat to achieve heat dissipation when circulating.

[0100] Here, the heat dissipation module proposed in the present disclosure can be arranged in an electronic device with a foldable / bendable form, where the electronic device includes but is not limited to a folding device or a wearable device, the folding device includes but is not limited to a folding mobile phone, a folding tablet computer, etc., and the wearable device includes but is not limited to wearable glasses, wearable watches, etc. Specifically, when the heat dissipation module is arranged in a folding device, the flexible cavity can be distributed at the folding position, and when the folding device is in a folded state, the flexible cavity can undergo flexible deformation, which not only reduces the problem of bending damage to the heat dissipation material, but also maintains the circulation of the refrigerant and improves the heat dissipation effectiveness; when the heat dissipation module device is arranged in a wearable device such as a wearable watch, the flexible cavity can be distributed at the bending position of the strap, and when the wearable watch is in a wearing state, the flexible cavity can undergo flexible deformation to ensure the bending resistance and thermal conductivity of the heat dissipation module.

[0101] Here, the flexible cavity may include a flexible pipe or a chamber structure surrounded by a flexible film; here, the flexible pipe includes: a rubber hose, a polyvinyl chloride (PVC) hose or a polyester elastic film tube, etc. The flexible film includes: a polyester (PET) film, a polyimide (PI) film or a cycloolefin polymer (COP) film, etc. The flexible cavity in the embodiment of the present disclosure has the characteristics of being soft, elastic, easy to bend, and having good pressure resistance, and can be used to transport cold media such as water, refrigerant, and gas. The present disclosure does not further elaborate on the form of the flexible pipe and the chamber structure surrounded by the flexible film.

[0102] It should be noted that the flexible cavity has at least two openings, which can serve as an inlet and an outlet for the circulation of the refrigerant, respectively, and are respectively connected to the pipeline to ensure the effective circulation of the refrigerant. Here, the at least two openings can be distributed on opposite sides of the flexible cavity or distributed at adjacent positions of the flexible cavity, and the present disclosure does not limit this.

[0103] Here, at least two openings of the pipe connecting the flexible cavity together with the flexible cavity form a connecting channel; in the present disclosure, the pipe can be of any shape, such as serrated, wavy, arc-shaped, etc.; the connecting channel can be annular, arc-shaped, etc., and the present disclosure does not impose further restrictions on this.

[0104] In the disclosed embodiment, the refrigerant injected into the connecting channel is a refrigerant, including a liquid refrigerant; illustratively, the liquid refrigerant includes pure water, a refrigerant such as brine, an azeotropic mixture, and the like.

[0105] In actual implementation, for example, when the heat dissipation module is arranged in a folding device, preferably, at least two openings of the flexible cavity can be openings facing opposite sides, including an inlet and an outlet, and the left and right sides of the folding portion of the folding device have a left folding body and a right folding body folded along the folding portion, and the openings of the flexible cavity are respectively facing the left folding body and the right folding body, and the flexible cavity is formed at the position of the folding portion, and the pipeline is arranged outside the folding portion, located on opposite sides of the flexible cavity, and respectively arranged in the area corresponding to the left folding body and the area corresponding to the right folding body; the pipeline is connected to the inlet and outlet of the flexible cavity respectively to form a ring-shaped connecting channel; the refrigerant in the pipeline located on one side enters the flexible cavity from the inlet of the flexible cavity, and flows into the pipeline located on the other side from the outlet of the flexible cavity; the flexible cavity establishes gas-liquid connection between the left folding body and the right folding body through the openings facing the opposite sides to further realize the integrated heat dissipation of the left and right sides of the folding device.

[0106] In some examples, the pipe can be a hard pipe, including a copper pipe, a stainless steel pipe, etc., which is connected to the opening of the flexible cavity. The liquid refrigerant includes a low-boiling point liquid. When the heat dissipation module is set in an electronic device such as a folding device, the low-boiling point liquid in the copper tube on one side evaporates at a position close to the heat source of the folding device to absorb working heat, and moves through the flexible cavity to the copper tube on the other side. It condenses into liquid at the colder end of the copper tube on the other side, and then flows back to the copper tube on this side, completing the refrigerant cycle through the liquid-gas phase change.

[0107] In other examples, the pipe is a flexible pipe, such as a pipe structure surrounded by polyester (PET) film. When the heat dissipation module is set in an electronic device such as a folding device, the liquid refrigerant includes water. Water has a large specific heat capacity and can effectively absorb heat. The water in the pipe on one side moves through the flexible cavity to the pipe on the other side, and the working heat is transferred to a location with a lower temperature. After the working heat is effectively dispersed through the circulation of water, the water flows back to the pipe on this side to complete the refrigerant circulation.

[0108] It should be noted that the width of the flexible cavity in the refrigerant circulation direction is greater than the width of the pipe in the refrigerant circulation direction. In this way, by increasing the width of the flexible cavity, the refrigerant in the pipe can be better diffused into the flexible cavity, so that the flow rate of the refrigerant in the pipe is the same as the flow rate in the flexible cavity, thereby improving the circulation effect of the refrigerant.

[0109] The heat dissipation module proposed in the embodiment of the present disclosure has a flexible cavity, which can form a connecting channel with the pipeline; thus, the flexible cavity can be flexibly deformed when bent or folded, and can still maintain the transfer of refrigerant in the flexible deformation state, effectively balancing the bending resistance and thermal conductivity of the heat dissipation module, and reducing the problem of poor heat dissipation effect caused by bending damage of the heat dissipation material; and when the flexible cavity is set in a bending device or a bendable device, a larger area of ​​heat dissipation is achieved based on the connecting channel, thereby improving the speed and uniformity of the working heat diffusion of the device. .

[0110] In the disclosed embodiment, the flexible cavity can be independently spaced apart from the pipeline and communicated with each other; the flexible cavity can also be integrated with the pipeline in the same structure.

[0111] In some embodiments, see Figure 4 , the heat dissipation module also includes a flexible heat dissipation film 3;

[0112] The flexible cavity 1 and the pipe 2 are formed in the flexible heat dissipation film 3 .

[0113] Here, the flexible heat dissipation film has high thermal conductivity and bending resistance. In some examples, the flexible cavity and the pipeline are arranged in the flexible heat dissipation film at intervals. Here, the material of the flexible cavity can be the same as or different from the material of the flexible heat dissipation film; the material of the pipeline can also be the same as or different from the material of the flexible heat dissipation film; for example, the material of the flexible heat dissipation film is polyimide, the material of the flexible cavity is polyvinyl chloride, and the material of the pipeline is copper.

[0114] In other examples, the flexible cavity is formed by punching a flexible heat dissipation film, and the pipe is penetrated through the area of ​​the flexible heat dissipation film excluding the flexible cavity. Here, the material of the pipe may be the same as or different from that of the flexible heat dissipation film, and the present disclosure does not impose any restrictions on this.

[0115] In other examples, combined with Figure 4 The flexible cavity 1 and the pipe 2 are both formed in the flexible heat dissipation film 3, and are both formed by the flexible heat dissipation film 3 through a perforation process. Thus, the flexible cavity 1 and the pipe 2 are both flexible.

[0116] In actual implementation, when the heat dissipation module proposed in the present disclosure is set in a folding device, the flexible heat dissipation film can be laid on the middle frame of the folding device.

[0117] The disclosed embodiment is provided with a flexible heat dissipation film, so that the heat dissipation module is lighter and thinner, and the structural occupancy is reduced; and, by forming a flexible cavity and a pipeline in the flexible heat dissipation film, convenient installation and effective management of the flexible cavity and the pipeline are guaranteed, and the refrigerant medium can circulate in the flexible heat dissipation film, reducing the overflow of the refrigerant and improving the reliability of the heat dissipation module.

[0118] In some embodiments, the material of the flexible heat dissipation film includes a metal film or a plastic film.

[0119] Here, the material of the metal film can be copper or aluminum. In actual implementation, the metal film can be made of a metal material, or can be formed of a metal oxide, or can be made by plating another metal material on a metal material, and the present disclosure does not limit this.

[0120] Here, the plastic film includes but is not limited to polyvinyl chloride (PVC) film, polyester (PET) film, polyimide (PI) film or cycloolefin polymer (COP) film, etc.

[0121] Taking PET film as an example, PET film is a milky white or light yellow, highly crystalline polymer; the surface of PET film is smooth and glossy. The material of PET film is polyethylene terephthalate, which has excellent physical and mechanical properties in a wide temperature range, and the long-term use temperature can reach 120°C; and it has excellent electrical insulation and can maintain excellent electrical properties under high temperature and high frequency. PET film also has good creep resistance, fatigue resistance, friction resistance, and bending resistance.

[0122] In the present disclosure, when the flexible cavity and the pipe are both formed by a flexible heat dissipation film through a punching process, the flexible cavity and the pipe can have excellent bendability, high thermal conductivity, and electrical insulation, effectively improving the heat dissipation performance of the heat dissipation module.

[0123] In some embodiments, see Figure 5a , Figure 5a is a schematic structural diagram of a flexible cavity in a flexible deformation state according to an exemplary embodiment; Figure 5b is a schematic diagram of the structure of a flexible cavity in an expanded state according to an exemplary embodiment; Figure 5a and Figure 5b As shown, the flexible cavity 1 includes two inner walls opposite to each other in the thickness direction;

[0124] One inner wall is formed with a plurality of support portions 11 disposed at intervals in a direction toward the other inner wall, and the refrigerant can flow in the gaps between two adjacent support portions 11 .

[0125] It should be noted that Figure 5a and Figure 5bThe arrow direction is the refrigerant flow direction. The support portion 11 is a convex structure formed by an inner wall protruding in the direction toward another inner wall, and is arranged at intervals along the inlet of the flexible cavity 1 toward the outlet of the flexible cavity 1. Preferably, the intervals between multiple support portions 11 are the same.

[0126] In the embodiment of the present disclosure, the thickness of the support portion may be less than or equal to the interval between the two inner walls. Taking the example that the thickness of the support portion is less than the interval between the two inner walls, when the folding device is in the unfolded state, the flexible cavity is in the unfolded state, and the refrigerant can flow through the gap between the two adjacent support portions and the space between the support portion and the other inner wall; when the folding device is in the folded state, the flexible cavity undergoes flexible deformation, and the space formed between the two inner walls of the flexible cavity is squeezed. At this time, the support portion provides a supporting force toward the other inner wall, and after the support, the flexible cavity can still allow the refrigerant to flow freely.

[0127] In the embodiment of the present disclosure, a support portion is provided on the inner wall of the flexible cavity along the thickness direction of the folding device, so that when the flexible cavity is compressed and deformed flexibly, the flexible cavity is effectively expanded to ensure the normal circulation of the refrigerant.

[0128] In other embodiments, one inner wall forms a plurality of first support portions toward another inner wall, and another inner wall forms a plurality of second support portions toward one inner wall. The first support portions and the second support portions are interspersed and arranged at intervals, and the refrigerant can flow in the gap between an adjacent first support portion and a second support portion.

[0129] In some embodiments, Figure 5b As shown, the plurality of support portions 11 form a plurality of rows of support convex hull groups in the flow direction of the refrigerant;

[0130] The plurality of support portions 11 in each row of support convex humps are arranged at intervals and parallel to the flow direction.

[0131] Combination Figure 5b The refrigerant entering from the inlet of the flexible cavity 1 flows out to the outlet of the flexible cavity 1 through the gaps between the multiple rows of supporting convex hull groups.

[0132] Preferably, the intervals between the multiple rows of supporting convex hull groups are the same, so that the flow rate of the refrigerant passing through any two adjacent rows of supporting convex hull groups is the same.

[0133] The disclosed embodiment provides a plurality of rows of supporting convex bulge groups, and the plurality of supporting parts in each row of supporting convex bulge groups are parallel to the flow direction, thereby providing a plurality of channels for the circulation of the refrigerant, guiding the refrigerant to flow in a directional manner from the inlet of the flexible cavity to the outlet of the flexible cavity, and improving the efficient circulation of the refrigerant inside the flexible cavity.

[0134] In some embodiments, in combination Figure 4, the heat dissipation module also includes:

[0135] The power structure 4 is installed at the position where the pipeline 2 and the flexible cavity 1 are connected, and is used to push the refrigerant entering the power structure 4 from the pipeline 2 into the flexible cavity 1.

[0136] The power structure proposed in the embodiment of the present disclosure can not only serve as a connecting carrier for connecting the pipeline and the flexible cavity, but also provide source power for the refrigerant, helping the refrigerant to flow from the pipeline into the flexible cavity and quickly flow out of the flexible cavity, thereby improving the refrigerant circulation performance and further improving the heat dissipation rate.

[0137] In some embodiments, the power structure is located in the communication channel; or, the power structure is communicated with the pipeline and the flexible cavity respectively, and forms a communication channel.

[0138] In some examples, the power structure can be arranged in the pipeline, for example, the power structure includes a directional guide valve, the directional guide valve is arranged in the pipeline, and the refrigerant entering the directional guide valve is pushed into the flexible cavity. Here, the directional guide valve includes a Tesla valve, and the Tesla valve is formed based on a plurality of hook-shaped guides connected to each other, and the plurality of hook-shaped guides include a plurality of first hook-shaped guides and a plurality of second hook-shaped guides, and the plurality of first hook-shaped guides and the plurality of second hook-shaped guides are arranged alternately, and the bending directions of the first hook-shaped guide and the second hook-shaped guide are different. Through the above-mentioned circuit design, when the liquid refrigerant passes through the Tesla valve in the forward direction, the liquid refrigerant will be divided into two paths at the connecting port of the first hook-shaped guide and the second hook-shaped guide, and then the two paths of liquid refrigerant will converge at the next connecting port; the Tesla valve changes the liquid refrigerant path through the circuit design to achieve the acceleration of the liquid refrigerant, so as to provide source power to the liquid refrigerant, help the liquid refrigerant flow from the pipeline to the flexible cavity, and quickly flow out of the flexible cavity.

[0139] In other examples, the power structure can be set outside the pipeline and connect the pipeline and the flexible cavity to form a connecting channel; for example, the power structure can be integrated in the flexible heat dissipation film and located in the transition duct provided by the flexible heat dissipation film, where the transition duct directly connects the pipeline and the cavity to form a connecting channel; or the power structure can also be set at a distance from the flexible heat dissipation film, in which case the flexible heat dissipation film forms a notch at the connecting position between the flexible cavity and the pipeline, and the power structure is connected to the notch, and together with the flexible cavity and the pipeline, forms a connecting channel.

[0140] The power structure proposed in the embodiment of the present disclosure can be directly located in the connecting channel, or can form a connecting channel with the pipeline and the flexible cavity. In this way, the power structure can be flexibly set in the heat dissipation module to improve the diversity and practicality of the heat dissipation module.

[0141] In some embodiments, see Figure 6 , Figure 6is a schematic diagram of a power structure according to an exemplary embodiment; Figure 6 As shown, the power structure 4 surrounding the communicating channel includes:

[0142] A housing 41 having an accommodating space;

[0143] The first drainage channel 42 is connected to the first side of the housing 41 and the pipeline ( Figure 6 not shown);

[0144] The second drainage channel 43 is connected to the second side of the housing 41 and the flexible cavity ( Figure 6 (not shown), the second side and the first side are opposite sides of the housing 41;

[0145] Power Components( Figure 6 The refrigerant (not shown) is located in the shell 41 and is used to push the refrigerant entering the shell 41 from the first drainage channel 42 into the second drainage channel 43.

[0146] It should be noted that Figure 6 The arrow direction is the refrigerant flow direction.

[0147] Here, the power structure includes a power pump, the power assembly is located in the accommodating space of the power pump housing, and the power assembly includes a pump body, which can provide thrust to the refrigerant when powered on, so that the refrigerant moves in a directed manner in the accommodating space to the position of the second drainage channel.

[0148] In the disclosed embodiment, the first drainage channel can be connected to the pipeline sleeve, or connected by being wrapped by a covering film, and the second drainage channel can be connected to the inlet sleeve of the flexible cavity, or connected by being wrapped by a covering film.

[0149] Here, the power component may include an ultrasonic power component, a mechanical power component, an electromagnetic power component, a piezoelectric power component, etc. Taking the ultrasonic power component as an example, the ultrasonic power component includes an ultrasonic exciter, which is arranged in the accommodating space of the shell and emits directional ultrasonic waves when powered on. Here, the propagation direction of the directional ultrasonic wave is the direction from the first drainage channel to the second drainage channel. The energy of the directional ultrasonic wave is used to drive the refrigerant to flow in a directional manner from the first drainage channel to the second drainage channel.

[0150] In the disclosed embodiment, the shell of the power structure can serve as a connecting carrier connecting the pipeline and the flexible cavity, so that the refrigerant is buffered through the accommodating space in the shell. The power component can provide power for the refrigerant. Even when the bending cavity is in a flexible deformation, it can impact the refrigerant so that the refrigerant is output from the flexible cavity to the pipeline, thereby improving the refrigerant circulation performance and further improving the heat dissipation rate.

[0151] In some embodiments, the power assembly includes:

[0152] The vibrating member is arranged on the shell wall close to the first drainage channel of the shell and is used to vibrate in the direction of the flexible cavity to push the refrigerant entering the shell from the pipeline to flow into the flexible cavity.

[0153] Here, the vibrating element includes an electromagnetic vibrator, a piezoelectric vibrator, etc., which is not limited in the present disclosure.

[0154] In actual implementation, when the heat dissipation module proposed in the present disclosure is set in an electronic device such as a folding device, the vibrator is connected to the mainboard in the device through a connector, and when the mainboard energizes the vibrator, the vibrator vibrates in the direction of the flexible cavity. Here, the control module on the mainboard can control the vibration frequency of the vibrator to adjust the driving energy of the refrigerant in the shell.

[0155] The disclosed embodiment of the present invention arranges a vibrating member capable of directionally vibrating in the shell of the power structure to drive the directional movement of the refrigerant, thereby improving the smoothness of the refrigerant flowing from the pipeline into the flexible cavity; and, when the folding device is in a bent state, that is, the flexible cavity is in a flexible deformation state, the vibrating member of the power structure can push the refrigerant to continue to flow outward in the compressed flexible cavity, thereby ensuring the effective flow of the refrigerant in the connecting channel.

[0156] In some embodiments, the vibrating member includes a piezoelectric ceramic plate.

[0157] Here, the piezoelectric ceramic piece can generate vibration using the inverse piezoelectric effect of the piezoelectric piece.

[0158] It should be noted that the piezoelectric ceramic sheet has a simple structure and is easy to install and maintain. Compared with the mechanical transmission structure (such as a drive motor), it does not require rotational inertia and has no acceleration and deceleration process. It can achieve rapid start and stop, and improve the flexibility of the power structure in driving the refrigerant.

[0159] In some embodiments, see Figure 7 , Figure 7 is a schematic diagram of a connection structure between a rotating member and an electronic motor according to an exemplary embodiment. Figure 7 As shown, the power assembly includes:

[0160] The rotating member 44 is located in the housing 41;

[0161] The driving motor 45 is spaced apart from the housing 41 and connected to the rotating member 44 to drive the rotating member 44 to rotate so as to push the refrigerant.

[0162] Here, the driving motor 45 is spaced apart from the housing 41 and has a control circuit board 451. When the heat dissipation module proposed in the present disclosure is provided in an electronic device such as a folding device, the control circuit board 451 is connected to the control module of the folding device and is configured to drive the rotating member 44 to rotate under the action of the control module. In the embodiment of the present disclosure, the rotor motor may include a rotor motor, a voice coil motor, or a shape memory alloy motor, etc., and the present disclosure does not limit this.

[0163] Take the drive motor including the rotor motor as an example. The rotor motor is an open-loop control electronic component that converts electromagnetic pulses into angular displacement or linear displacement. The rotor motor is a stator with magnetic poles, stator teeth, coils and control circuits on its surface. The rotating part is a mover, which is connected to the stator and has mover teeth on its lower surface. Through the principle of magnetic induction, the stator teeth and mover teeth cooperate to drive the mover to rotate. Figure 7 The driving motor 45 is connected to the rotating member 44, the driving motor 45 serves as a stator, the rotating member 44 serves as a stator, and the control circuit board 451 of the driving motor 45 is connected to the control module of the folding device.

[0164] Here, the rotating member can push the refrigerant to move in a directional manner while rotating. Exemplarily, the rotating member includes at least two blades arranged at intervals, and the at least two blades are connected to each other and fixedly connected in the shell, dividing the housing space of the shell into at least two subspaces, and when the at least two blades rotate under the action of the driving motor, the refrigerant entering the shell from the first drainage channel is driven to the second drainage channel in a directional manner, so that the refrigerant forms a fixed movement direction.

[0165] The disclosed embodiment can push the refrigerant entering the shell from the first drainage channel into the second drainage channel through the cooperation of the driving motor and the rotating part, thereby improving the smoothness of the refrigerant flowing from the pipeline into the flexible cavity; and, when the folding device is in a bent state, that is, when the flexible cavity undergoes flexural deformation, the rotation of the rotating part can also push the refrigerant in the compressed flexible cavity to continue to flow outward, thereby ensuring the effective flow of the refrigerant in the connecting channel.

[0166] In some embodiments, see Figure 8 , Figure 8 is a structural exploded diagram of a rotating member according to an exemplary embodiment; Figure 8 As shown, the rotating member 44 includes:

[0167] The rotating disk 441 is disposed in the housing 41, and the rotating plane of the rotating disk 441 is parallel to the flow direction of the refrigerant when rotating;

[0168] The extension rod 442 is located in the shell 41 and connected to the edge of the turntable 441 to push the refrigerant entering the shell from the first drainage channel 42 into the second drainage channel 43 following the rotation of the turntable 441 .

[0169] like Figure 8 As shown, the housing 41 includes two parallel housing walls along the refrigerant flow direction (i.e., the direction from the first drainage channel 42 to the second drainage channel 43). The rotary disk 441 provided in the present disclosure is arranged near the drive motor ( Figure 8 The housing is mounted on a housing wall (not shown) and is connected to a drive motor.

[0170] The edge of the turntable 441 has a fixing hole extending outward, and the rotating member 44 also includes a fixing pin 443. One end of the extension rod 442 is fixedly connected to the fixing pin 443 and is connected to the turntable 441 through the cooperation between the fixing pin 443 and the fixing hole. The other end of the extension rod 442 extends in a direction away from the turntable 441; here, the cooperation between the fixing pin 443 and the fixing hole can be a movable cooperation or a locking cooperation, and the present disclosure does not make further restrictions on this.

[0171] Taking the locking fit between the fixing pin and the fixing hole as an example, the extension rod is fixed on the turntable and does not change its position relative to the turntable. It can push the refrigerant entering the shell from the first drainage channel into the second drainage channel as the turntable rotates.

[0172] In the embodiments of the present disclosure, the shape of the turntable can be a regular shape, such as an ellipse, a circle, a square, etc., and the shape of the turntable can also be an irregular shape, such as a sawtooth shape, etc.; the shape of the extension rod can be a regular shape, such as a bar, an arc, etc., and the shape of the extension rod can also be an irregular shape, such as a wave shape, etc., which will not be elaborated in the present disclosure.

[0173] Here, the rotating part proposed in the present invention includes a turntable and an extension rod. The structural connection between the turntable and the extension rod is simple and easy to assemble, which improves the practicality of the power structure. In addition, the refrigerant is pushed by the extension rod when it rotates, so that the refrigerant has a source of power for circulation, thereby improving the smoothness of the refrigerant flowing from the pipeline into the flexible cavity.

[0174] In some embodiments, see Fig. 9 , Fig. 9 is a schematic diagram of the structure of a power assembly according to an exemplary embodiment, combined with Figure 8 and Fig. 9 As shown, the power assembly also includes:

[0175] The slide rail 46 is arranged along the edge of the housing 41 and surrounds the rotating disk 441 and the extension rod 442;

[0176] A slider 47 is movably embedded in the slide rail 46;

[0177] One end of the extension rod 442 is connected to the edge of the rotating disk 441 , and the other end of the extension rod 442 is connected to the slider 47 .

[0178] Here, the cooperation between the fixing pin and the fixing hole is a movable cooperation, and the fixing pin can rotate in the fixing hole but cannot be disengaged from the fixing hole. In this way, the extension rod can swing along the edge of the shell, and the sliding block connected by the extension rod can change the movement position by sliding in the slide rail.

[0179] In some examples, the slide rail includes an annular slide rail, which forms a closed track and is arranged on the shell wall near the drive motor. The slider is movably embedded in the closed track and can slide in a circle in the closed track. When the drive motor drives the turntable to rotate, the turntable can rotate 360 ​​degrees. The extension rod rotates with the rotation of the turntable and drives the slider to slide in the closed slide rail, so that the extension rod pushes the refrigerant entering the shell from the first drainage channel to the second drainage channel when it moves. Here, the shape of the annular slide rail can be an ellipse, a rounded rectangle, a circle, etc., and the present disclosure does not make further restrictions on this.

[0180] In some other examples, the slide rail also includes an arc-shaped slide rail or a strip-shaped slide rail, which is arranged on the shell wall close to the driving motor, and the slider is movably embedded in the arc-shaped slide rail or the strip-shaped slide rail. At this time, the rotation range of the turntable is adapted to the slide rail setting. For example, when the slide rail is an arc-shaped slide rail, the rotation range of the turntable can be set to 180 degrees. The extension rod rotates with the rotation of the turntable and drives the slider to slide in the arc-shaped slide rail, so that the extension rod pushes the refrigerant entering the shell from the first drainage channel to the second drainage channel when it moves.

[0181] The disclosed embodiment of the present invention arranges a slider and a slide rail in the power assembly so that the extension rod can flexibly change its active position within a preset range and will not deviate from the preset range. In this way, it can reduce the phenomenon of the rotating part being detached from the shell due to too fast rotation, and can also enhance the flexibility of the movement of the rotating part in the shell, and reduce the situation where the rotating part is stuck when rotating in the shell. Furthermore, the cooperation of the rotating part, the slider and the slide rail can also effectively buffer a large amount of refrigerant entering the shell from the first drainage channel, and guide the refrigerant to gradually enter the second drainage channel, thereby ensuring the stability of the refrigerant circulation.

[0182] In some embodiments, the extension rod includes a plurality of extension rods; the plurality of extension rods are spaced apart between the turntable and the shell wall of the shell, and the accommodating space between the turntable and the shell wall of the shell is divided into a plurality of spaces of different volumes by the plurality of extension rods, so that the refrigerant flowing into a space from the first drainage channel can be squeezed at the position of the second drainage channel and then flow out from the second drainage channel.

[0183] Here, the extension rods include multiple ones, and the shapes of the multiple extension rods can be the same or different, and the sizes of the multiple extension rods can also be the same or different, and the present disclosure does not impose further limitations on this.

[0184] Exemplary, combined Fig. 9 , Fig. 9 There are three extension rods 442 shown, and the three extension rods 442 are connected at different positions on the edge of the turntable 441, dividing the accommodation space between the turntable 441 and the shell wall of the shell 41 into three spaces of different volumes. In this way, during the rotation of the turntable, the refrigerant enters a volume space from the first drainage channel. As the amount of refrigerant entering the volume space increases, when the turntable rotates to the position of the second drainage channel, the extension rods surrounding the volume space squeeze the refrigerant in the volume space into the second drainage channel, so that the refrigerant converts the squeezing force into flow power and flows into the cavity from the second drainage channel.

[0185] In the present disclosure, the accommodating space between the turntable and the shell wall of the shell is divided into a plurality of spaces of different volumes by a plurality of extension rods. The volume difference formed after the refrigerant enters the spaces of different volumes can form an extrusion effect on the refrigerant, so that the refrigerant flowing into one space can be squeezed at the position of the second drainage channel and then flow out from the second drainage channel, thereby ensuring the smoothness of the refrigerant circulation.

[0186] In some embodiments, the plurality of extension rods are all recessed in a direction opposite to the rotation direction of the turntable, and the connection points between the plurality of extension rods and the turntable are evenly spaced and distributed on the edge of the turntable.

[0187] Here, the extension rod is recessed in the opposite direction of the rotation direction of the turntable to form an arc-shaped extension rod or a U-shaped extension rod. The recessed degrees of multiple arc-shaped extension rods or U-shaped extension rods are different, and multiple arc-shaped rods or U-shaped rods with different recessed degrees are evenly spaced and distributed on the edge of the turntable, so that the accommodating space between the turntable and the shell wall of the shell can be divided into multiple spaces of different volumes. The volume difference formed after the refrigerant enters the space of different volumes forms an extrusion effect on the refrigerant, so that the refrigerant flowing into one volume space can be squeezed at the position of the second drainage channel and then flow out from the second drainage channel, thereby ensuring the smoothness of the circulation of the refrigerant. In some embodiments, the distance from the turntable to the first drainage channel is greater than the distance from the turntable to the second drainage channel.

[0188] Here, the sizes and shapes of the multiple extension rods are the same, and the connection points of the multiple extension rods and the turntable are evenly spaced on the edge of the turntable. Since the distance from the turntable to the first drainage channel is greater than the distance from the turntable to the second drainage channel, the turntable is closer to the second drainage channel. In this way, the multiple extension rods divide the accommodating space between the turntable and the shell wall of the shell into a plurality of dynamic spaces of different volumes when rotating. The refrigerant enters a volume space from the first drainage channel. When the volume space moves close to the second drainage channel, the volume of the volume space decreases. Due to the change in the volume difference formed after the refrigerant enters the different volume spaces, the refrigerant in the volume space is squeezed into the second drainage channel.

[0189] See also Fig.10a and Fig.10b , Fig.10a is a first schematic diagram showing the rotation of a rotating member inside a housing according to an exemplary embodiment; Fig.10b is a schematic diagram of the rotation of the rotating member inside the housing according to an exemplary embodiment Figure 2 ;

[0190] like Fig.10a As shown, the three extension rods 442 divide the accommodation space between the rotating disk 441 and the shell wall of the shell 41 into three different volumes of the first dynamic space A, the second dynamic space B, and the third dynamic space C. When the rotor motor drives the rotating disk 441 to rotate clockwise to the position shown in FIG. Fig.10b When the state shown is reached, the dynamic space A changes to Fig.10a The position of the second dynamic space B is shown. At this time, the volume difference of the first dynamic space A changes so that the refrigerant entering the first dynamic space A from the first drainage channel 42 is squeezed into the second drainage channel 43 during the rotation of the turntable.

[0191] In the disclosed embodiment, the distance from the turntable to the first drainage channel is greater than the distance from the turntable to the second drainage channel. The turntable is closer to the second drainage channel and forms an eccentric structure with the shell. A plurality of extension rods are divided into a plurality of dynamic spaces of different volumes. The volume of the space at the position of the movement from the first drainage channel to the second drainage channel is compressed, and the refrigerant is squeezed to move in a directional manner through the change in volume difference, thereby providing effective power for the circulation of the refrigerant.

[0192] In actual implementation, combined with Figures 6 to 10b As shown, the rotating disk 441 comprises a circular disk; and the extending rod 442 comprises an arc-shaped rod.

[0193] Here, the shell is a cylindrical shell, and the disc is arranged in the cylindrical shell. The distance from the disc to the first drainage channel is greater than the distance from the turntable to the second drainage channel. The disc and the cylindrical shell form an eccentric structure. The connection points of multiple arc rods and the disc are evenly spaced on the edge of the disc, dividing the accommodation space between the disc and the cylindrical shell into multiple dynamic spaces of different volumes. During the clockwise rotation of the turntable, the three dynamic spaces change alternately with the movement of the disc, driving the refrigerant to move so that the refrigerant forms a fixed direction of movement. The eccentric structure formed by the disc and the cylindrical shell allows the refrigerant to form a fixed direction of movement, providing a source of power for the movement of the refrigerant; and the movement of the arc rod when passing through the position close to the second drainage channel is smoother and smoother than that of the strip rod, reducing rotation jams and further improving the rotation flexibility of the rotating part.

[0194] In other embodiments, the mechanical power assembly proposed in the present disclosure may further include a translation member and a driving member. The translation member is located in the housing and has an angle with the direction of the first drainage channel toward the second drainage channel. The driving member is spaced apart from the housing and connected to the translation member; the driving member can drive the translation member to move linearly to compress the refrigerant, so that the refrigerant flows from the first drainage channel to the second drainage channel, and squeezes the refrigerant out of the second drainage channel.

[0195] Here, the driving member may be the driving motor mentioned above in the present disclosure, or an electromagnetic exciter, etc., and the present disclosure does not limit this.

[0196] In some embodiments, see Fig.11 , Fig.11 is a schematic diagram of the assembly of a flexible cavity and a pipeline according to an exemplary embodiment; Fig.11 As shown, the pipeline 2 includes: a first pipeline 21 and a second pipeline 22 connected at opposite sides of the flexible cavity 1;

[0197] The flexible cavity 1 comprises a first cavity 12 and a second cavity 13 which are arranged at intervals;

[0198] A first pipe 21 is connected to the inlet of the first cavity 12 and the outlet of the second cavity 13;

[0199] The second pipe 22 communicates the inlet of the second cavity 13 with the outlet of the first cavity 12 .

[0200] Here, the first pipe and the second pipe are both bent. It should be noted that the bending shapes of the first pipe and the second pipe can be the same, which can reduce the difficulty of mold manufacturing and improve the efficiency of part production. The bending shapes of the first pipe and the second pipe can be different, and avoid the functional module setting on the middle frame of the folding device, which helps to improve the rationality of the structural layout.

[0201] The embodiment of the present disclosure sets two flexible cavities, and connects the first pipe and the second pipe distributed on both sides of the flexible cavity to form a connecting channel, thereby constituting a double-sided joint heat dissipation system, and realizes integrated heat dissipation based on the circulation of refrigerant in the connecting channel. When the heat dissipation module proposed in the present disclosure is set in an electronic device such as a folding device, the double-sided heat dissipation uniformity of the folding device is improved; and both flexible cavities can be set on the folding area, which can ensure better circulation of the refrigerant in the connecting channel and further improve the heat dissipation effect.

[0202] In some embodiments, the power structure of the heat dissipation module includes a first power structure, wherein the first power structure is connected between the first pipeline and the inlet of the first cavity;

[0203] and / or,

[0204] The power structure of the heat dissipation module includes a second power structure; wherein the second power structure is connected between the inlet of the second cavity and the second pipeline.

[0205] like Fig.11 As shown, the power structure 4 of the heat dissipation module includes two, specifically a first power structure 48 and a second power structure 49 as an example: the first power structure 48 is connected between the first pipe 21 and the inlet of the first cavity 12; the second power structure 49 is connected between the inlet of the second cavity 13 and the second pipe 22.

[0206] Here, the first power structure is arranged at a position close to the entrance of the first cavity, and is used to push the refrigerant entering the first power structure from the first pipe into the first cavity, and make this part of the refrigerant have a source power, and can flow to the second pipe along the gap between the supporting parts of the first cavity when the first cavity is in a state of flexible deformation; the second power structure is arranged at a position close to the entrance of the second cavity, and is used to push the refrigerant entering the second power structure from the second pipe into the second cavity, and make this part of the refrigerant have a source power, and can flow to the first pipe along the gap between the supporting parts of the second cavity when the second cavity is in a state of flexible deformation. It should be noted that the first power structure and the second power structure can be the same, for example, both include a drive motor and a rotating part; the first power structure and the second power structure can also be different, for example, the first power structure includes a drive motor and a rotating part, and the second power structure includes a vibrating part.

[0207] In this way, by setting the first power structure and / or the second power structure, it is possible to ensure effective circulation of liquid in the connecting channel when the heat dissipation module is in a bent state or a curved state, that is, when the first cavity and the second cavity are squeezed and flexibly deformed; at the same time, the number of power structures can be adjusted according to the degree of folding or bending of the device in which the heat dissipation module is located, thereby improving the degree of freedom.

[0208] In some embodiments, the first pipe and the second pipe have different bending states; wherein a positioning mark is set on the first pipe, and the positioning mark is used to locate the installation position of the heat dissipation module.

[0209] In the embodiment of the present disclosure, when the heat dissipation module proposed in the present disclosure is set in a folding device, the first pipe and the second pipe can be designed to avoid the functional module on the middle frame of the folding device; in this way, when the heat dissipation module proposed in the present disclosure is set in the folding device, the positioning mark can be aligned with the mainboard of the folding device, so that the first pipe is distributed in the frame where the mainboard is located, and the second pipe is distributed in the frame where the mainboard is not installed.

[0210] Combination Fig.11The first pipe 21 is provided with a heat source mark 211, and the heat source mark 211 is used for aligning and positioning with the main board of the folding device.

[0211] It should be noted that the heat source mark proposed in the present disclosure can be obtained by pattern marking, or by adding a marking layer to the pipeline, and the present disclosure does not limit this.

[0212] The disclosed embodiment can realize the installation positioning of the heat dissipation module through the heat source mark on the first pipe, reduce the interference of the functional modules in the heat dissipation module or the impact on the heat dissipation efficiency caused by the installation error of the heat dissipation module, thus improving the reliability and accuracy of the installation positioning of the heat dissipation module through the heat source mark.

[0213] In some embodiments, see Fig.12 , Fig.12 is a schematic diagram of the arrangement of a heat sink according to an exemplary embodiment; Fig.12 As shown, the heat dissipation module also includes:

[0214] The heat sink 5 covers the pipe 2.

[0215] Here, the heat sink includes two, which cover the first pipe and the second pipe respectively, so as to further diffuse the energy transferred by the refrigerant in the first pipe and the second pipe.

[0216] In the disclosed embodiments, the heat sink includes but is not limited to a graphite heat sink, a graphene heat sink, a VC heat spreader, etc. Taking the graphite heat sink as an example, the graphite molecules of the graphite heat sink can guide the working heat to be directional-dissipated in both the longitudinal and lateral directions.

[0217] In the present disclosure, the heat sink can evenly conduct and diffuse the working heat conducted by the pipeline over a large area, thereby increasing the heat dissipation area and heat dissipation efficiency.

[0218] The present disclosure also provides a folding device, see Fig.13 , Fig.13 is a schematic diagram of the structure of a folding device according to an exemplary embodiment; Fig.12 and Fig.13 As shown, the folding device comprises:

[0219] The middle frame 6 includes a folding portion 61 and a first folding frame body 62 and a second folding frame body 63 connected to opposite sides of the folding portion 61 along a first direction s;

[0220] The heat dissipation module described in the above embodiment of the present disclosure;

[0221] The flexible cavity of the heat dissipation module is distributed at the folding portion 61 , and the pipes 2 of the heat dissipation module are distributed at the first folding frame 62 and the second folding frame 63 .

[0222] In the embodiments of the present disclosure, foldable devices include but are not limited to foldable mobile phones, foldable tablets, foldable watches and other electronic devices.

[0223] Combination Fig.13 As shown, the flexible cavity 1 is arranged at the folding portion 61 and is located in the bending area D of the folding device.

[0224] It should be noted that the first direction is the extending direction of the folding portion, and the first folding frame and the second folding frame are distributed on two opposite sides of the folding portion along the first direction.

[0225] The flexible cavity of the heat dissipation module is arranged on the folding part. Exemplarily, the folding part includes a rotating shaft structure, such as a hinge structure. When the folding device is folded, the flexible cavity follows the hinge movement of the hinge structure and undergoes flexible deformation. Here, the flexible cavity can be arranged on the folding part in parallel with the hinge structure, and the flexible cavity part can also be mounted on the hinge structure. The present disclosure does not impose any restrictions on this.

[0226] The pipes of the heat dissipation module are arranged outside the folding part, distributed at the first folding frame and the second folding frame, forming a double-sided joint heat dissipation system for the folding device, and realizing double-sided integrated heat dissipation based on the circulation of refrigerant in the pipes and the flexible cavity, thereby improving the uniformity of heat dissipation on both sides.

[0227] The heat dissipation module proposed in the embodiment of the present disclosure is applied to a folding device and is arranged at the middle frame of the folding device. It has a flexible cavity arranged in the folding part of the folding device, and the flexible cavity and the pipe arranged outside the folding part form a connecting channel; in this way, the heat dissipation module proposed in the present disclosure forms a double-sided joint heat dissipation system for the folding device, and realizes integrated heat dissipation based on the circulation of refrigerant in the connecting channel, thereby improving the uniformity of heat dissipation on both sides; moreover, the flexible cavity can flexibly deform when the folding device is folded, and can still maintain the transmission of refrigerant in the flexible deformation state, thereby effectively balancing the bending resistance and thermal conductivity of the folding part, and compared with the form of setting a graphite heat sink in the folding part, the problem of poor heat dissipation effect caused by damage to the heat dissipation material of the folding part due to bending is reduced, thereby further improving the heat dissipation speed and heat dissipation effect.

[0228] In some embodiments, the heat dissipation module is embedded in the middle frame; or,

[0229] The heat dissipation module is sandwiched between the middle frame and the display screen of the folding device along the second direction; or,

[0230] The heat dissipation module is sandwiched between the middle frame and the back shell of the folding device along the second direction.

[0231] Here, the flexible cavity can be independently spaced apart from the pipeline and communicated with each other; the flexible cavity can also be integrated with the pipeline in the same structure.

[0232] When the flexible cavity and the pipeline are independently spaced apart, the heat dissipation module is embedded in the middle frame. Specifically, the first pipeline is embedded in the first folding frame and avoids other functional components on the first folding frame. The second pipeline is embedded in the second folding frame and avoids other functional components on the second folding frame.

[0233] When the flexible cavity and the pipeline are integrated in the flexible heat dissipation film, the flexible heat dissipation film is laid on the middle frame and fixed relatively to the middle frame. Specifically, the heat dissipation module is sandwiched between the middle frame and the display screen of the folding device along the second direction; or, the heat dissipation module is sandwiched between the middle frame and the back shell of the folding device along the second direction, where the second direction is the thickness direction of the folding device, the first direction and the second direction are different directions, and when the folding device is in a flattened state, the first direction and the second direction are perpendicular to each other.

[0234] In the disclosed embodiment, the heat dissipation module can be embedded in the middle frame, or sandwiched between the middle frame and other structural components. The setting position is flexible, which improves the diversity and versatility of the heat dissipation module.

[0235] In some embodiments, see Fig.14 , Fig.14 is a structural exploded diagram of a folding device according to an exemplary embodiment; Fig.14 As shown, the flexible cavity and the pipeline are integrated in the flexible heat dissipation film 3 and sandwiched between the graphite heat sink 5 and the middle frame 6 of the heat dissipation module. There are two graphite heat sinks 5, which cover the pipelines on both sides of the flexible cavity respectively. The graphite heat sink can conduct and diffuse the working heat conducted by the pipeline over a large area and evenly, thereby increasing the heat dissipation area and heat dissipation efficiency.

[0236] In some embodiments, the folding device has a hot zone and a cold zone; the heat of the folding device in the hot zone is greater than the heat of the folding device in the cold zone;

[0237] The first pipeline of the heat dissipation module is located so that the orthographic projections of the hot zones along the second direction overlap at least a part of the hot zones;

[0238] The orthographic projections of the first pipeline, the second pipeline of the heat dissipation module, and the power structure of the heat dissipation module along the second direction are at least partially located in the cold zone.

[0239] Here, functional modules with high working heat are distributed in the hot zone of the folding device, and no functional modules are distributed in the cold zone or functional modules with low working heat are distributed. The first pipe partially overlaps with the hot zone. In this way, the refrigerant flowing in the first pipe can take away the working heat of the hot zone and flow into the first pipe, the second pipe or the flexible cavity that partially overlaps with the cold zone, so that the refrigerant can dissipate heat during the circulation process and cool and reflux to an area with a lower temperature.

[0240] In some embodiments, the mainboard of the foldable device is located in the hot zone.

[0241] It should be noted that the main board is arranged on the first folding frame, and integrates multiple components that realize the core functions of the folding device. It is the control center for the function realization of the folding device. The system-level chip SoC of the folding device is also integrated on the main board. The main board generates high working heat when working, which is distributed in the hot zone of the folding device.

[0242] It should be noted that when the bending states of the first pipe and the second pipe are different, a positioning mark is provided on the first pipe, and the positioning mark can be aligned with the mainboard, for example, the positioning mark is aligned with the system-on-chip SoC, so that the orthographic projections of the first pipe and the hot zone along the second direction at least partially overlap.

[0243] See also Fig.15 , Fig.15 is a structural block diagram of a folding device according to an exemplary embodiment; Fig.15 As shown, the folding device also includes: a battery, a small board, a transfer small board, and a speaker. In one example, the main board is located in the cold zone, and the first battery, the second battery, the small board, the transfer small board, and the speaker are all located in the cold zone. At this time, the first pipe and the hot zone overlap in their orthographic projections along the second direction, and the overlapping parts are distributed at the positions of the main board and the first battery; the first pipe, the first power structure, and the cold zone overlap in their orthographic projections along the second direction, and the overlapping parts are distributed at the positions of the small board; the second pipe, the second power structure, and the cold zone overlap in their orthographic projections along the second direction, and the overlapping parts are distributed at the positions of the battery, the speaker, and the transfer small board. In other examples, the main board and the first battery are located in the hot zone, and the small board, the transfer small board, the second battery, and the speaker are located in the cold zone. The pipes in the heat dissipation module proposed in the present disclosure overlap with the orthographic projections of the hot zone and the cold zone along the second direction, and the present disclosure will not be further elaborated here.

[0244] Here, the mainboard is distributed in the hot zone, so that the refrigerant in the first pipe can concentrate on taking away more energy of the folding device from the hot zone, so that the heat dissipation of the folding device is better.

[0245] In some embodiments, the folding device further comprises:

[0246] The control module is arranged on the main board and electrically connected to the driving motor of the heat dissipation module or the vibration member of the heat dissipation module. It is used to control the driving motor to drive the rotating member of the heat dissipation module to rotate or control the vibration member to vibrate when it is detected that the working heat of the folding device exceeds the heat threshold.

[0247] It should be noted that the driving motor of the heat dissipation module or the vibration member of the heat dissipation module can be directly connected to the main board, or through a connecting small board or a connecting adapter small board, the small board or the adapter small board is electrically connected to the main board. Here, the driving motor or the vibration member can be connected to the main board through a flexible printed circuit (FPC) buckle.

[0248] Here, the control module can also adjust the driving power of the driving motor or the vibration frequency of the vibrator according to the relationship between the working heat and the heat threshold. For example, the greater the difference between the working heat and the heat threshold, the greater the driving power of the driving motor or the higher the vibration frequency of the vibrator.

[0249] The disclosed embodiment can control the power structure of the heat dissipation module to operate when the control module detects that the operating heat of the folding device exceeds the heat threshold, so as to achieve rapid diffusion of high heat and improve the user experience of the folding device.

[0250] In other embodiments, the control module can also start the drive motor or supply power to the vibration element when the folding device is folded.

[0251] In other embodiments, the control module can also adjust the drive motor to drive with a first driving power or adjust the vibration member to vibrate at a first vibration frequency when the folding device is in a flattened state, and adjust the drive motor to drive with a second driving power or adjust the vibration member to vibrate at a second vibration frequency when the folding device is folded, where the first driving power is less than the second driving power, and the first vibration frequency is less than the second vibration frequency.

[0252] Reference Fig.16 , Fig.16 A structural frame of a folding device according to an exemplary embodiment is shown Figure 2 ; The folding device 800 may include one or more of the following components: a processing component 802, a memory 804, a power component 806, a multimedia component 808, an audio component 810, an input / output (I / O) interface 812, a sensor component 814, and a communication component 816.

[0253] The processing component 802 generally controls the overall operation of the folding device 800, such as operations associated with display, phone calls, data communications, camera operations, and recording operations. The processing component 802 may include one or more processors 820 to execute instructions to complete all or part of the steps of the above-mentioned method. In addition, the processing component 802 may include one or more modules to facilitate the interaction between the processing component 802 and other components. For example, the processing component 802 may include a multimedia module to facilitate the interaction between the multimedia component 808 and the processing component 802.

[0254] The memory 804 is configured to store various types of data to support operations on the device 800. Examples of such data include instructions for any application or method operating on the foldable device 800, contact data, phone book data, messages, pictures, videos, etc. The memory 804 can be implemented by any type of volatile or non-volatile storage device or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic disk or optical disk.

[0255] The power supply component 806 provides power to various components of the foldable device 800. The power supply component 806 may include a power management system, one or more power supplies, and other components associated with generating, managing, and distributing power for the foldable device 800.

[0256] The multimedia component 808 includes a screen that provides an output interface between the folding device 800 and the user. In some embodiments, the screen may include a liquid crystal display (LCD) and a touch panel (TP). If the screen includes a touch panel, the screen may be implemented as a touch screen to receive input signals from the user. The touch panel includes one or more touch sensors to sense touch, slide, and gestures on the touch panel. The touch sensor may not only sense the boundaries of the touch or slide action, but also detect the duration and pressure associated with the touch or slide operation. In some embodiments, the multimedia component 808 includes a front camera and / or a rear camera. When the device 800 is in an operating mode, such as a shooting mode or a video mode, the front camera and / or the rear camera may receive external multimedia data. Each front camera and rear camera may be a fixed optical lens system or have a focal length and optical zoom capability.

[0257] The audio component 810 is configured to output and / or input audio signals. For example, the audio component 810 includes a microphone (MIC), and when the folding device 800 is in an operating mode, such as a call mode, a recording mode, and a voice recognition mode, the microphone is configured to receive an external audio signal. The received audio signal can be further stored in the memory 804 or sent via the communication component 816. In some embodiments, the audio component 810 also includes a speaker for outputting audio signals.

[0258] The input / output interface 812 provides an interface between the processing component 802 and the peripheral interface modules, which may be keyboards, click wheels, buttons, etc. These buttons may include but are not limited to: a home button, a volume button, a start button, and a lock button.

[0259] The sensor assembly 814 includes one or more sensors for providing various aspects of status assessment for the folding device 800. For example, the sensor assembly 814 can detect the open / closed state of the device 800, the relative positioning of components, such as the display and keypad of the folding device 800, and the sensor assembly 814 can also detect the position change of the folding device 800 or a component of the folding device 800, the presence or absence of user contact with the folding device 800, the orientation or acceleration / deceleration of the folding device 800, and the temperature change of the folding device 800. The sensor assembly 814 may include a proximity sensor configured to detect the presence of a nearby object without any physical contact. The sensor assembly 814 may also include an optical sensor, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, the sensor assembly 814 may also include an accelerometer, a gyroscope sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.

[0260] The communication component 816 is configured to facilitate wired or wireless communication between the folding device 800 and other devices. The folding device 800 can access a wireless network based on a communication standard, such as WiFi, 2G or 3G, or a combination thereof. In an exemplary embodiment, the communication component 816 receives a broadcast signal or broadcast-related information from an external broadcast management system via a broadcast channel. In an exemplary embodiment, the communication component 816 also includes a near field communication (NFC) module to facilitate short-range communication. For example, the NFC module can be implemented based on radio frequency identification (RFID) technology, infrared data association (IrDA) technology, ultra-wideband (UWB) technology, Bluetooth (BT) technology and other technologies.

[0261] In an exemplary embodiment, the folding device 800 can be implemented by one or more application-specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field programmable gate arrays (FPGAs), controllers, microcontrollers, microprocessors, or other electronic components to perform the above-mentioned methods.

[0262] In an exemplary embodiment, a non-transitory computer-readable storage medium including instructions is also provided, such as a memory 804 including instructions, which can be executed by a processor 820 of the electronic device 800. For example, the non-transitory computer-readable storage medium can be a ROM, a random access memory (RAM), a CD-ROM, a magnetic tape, a floppy disk, an optical data storage device, etc.

[0263] Those skilled in the art will readily appreciate other embodiments of the present disclosure after considering the specification and practicing the invention disclosed herein. The present disclosure is intended to cover any variations, uses or adaptations of the present invention that follow the general principles of the present disclosure and include common knowledge or customary techniques in the art that are not disclosed in the present disclosure. The description and examples are to be regarded as exemplary only, and the true scope and spirit of the present disclosure are indicated by the following claims.

[0264] It should be understood that the present disclosure is not limited to the exact structures that have been described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims

1. A heat dissipation module, characterized in that: include: Flexible cavity; The pipeline and the flexible cavity form a communication channel, and the refrigerant filled in the communication channel can conduct heat to achieve heat dissipation when circulating.

2. The heat dissipation module according to claim 1, characterized in that: The heat dissipation module also includes: The power structure is installed at the position where the pipeline and the flexible cavity are connected, and is used to push the refrigerant entering the power structure from the pipeline into the flexible cavity.

3. The heat dissipation module according to claim 2, characterized in that: The power structure is located in the communication channel; or, The power structure is communicated with the pipeline and the flexible cavity respectively, and forms the communication channel.

4. The heat dissipation module according to claim 3, characterized in that: The power structure surrounding the communicating channel includes: A housing having an accommodating space; a first drainage channel communicating with the first side of the housing and the pipeline; a second drainage channel communicating with a second side of the shell and the flexible cavity, wherein the second side and the first side are opposite sides of the shell; The power assembly is located in the shell and is used to push the refrigerant entering the shell from the first drainage channel into the second drainage channel.

5. The heat dissipation module according to claim 4, characterized in that: The power assembly comprises: A rotating member, located in the housing; The driving motor is spaced apart from the shell and connected to the rotating member, and is used for driving the rotating member to rotate so as to push the refrigerant.

6. The heat dissipation module according to claim 5, characterized in that: The rotating member comprises: A rotating disk is disposed in the housing, and a rotating plane of the rotating disk is parallel to a flow direction of the refrigerant when the rotating disk rotates; An extension rod is located in the shell and connected to the edge of the turntable, and is used to push the refrigerant entering the shell from the first drainage channel into the second drainage channel following the rotation of the turntable.

7. The heat dissipation module according to claim 6, characterized in that: The power assembly also includes: A slide rail, arranged along the edge of the shell and surrounding the rotating disk and the extension rod; A slider, movably embedded in the slide rail; One end of the extension rod is connected to the edge of the rotating disk, and the other end of the extension rod is connected to the sliding block.

8. The heat dissipation module according to claim 6, characterized in that: The extension rods include a plurality of; A plurality of the extension rods are distributed at intervals between the turntable and the shell wall of the shell, and the accommodating space between the turntable and the shell wall of the shell is divided into a plurality of spaces of different volumes by the plurality of the extension rods, so that the refrigerant flowing into one of the spaces from the first drainage channel can flow out from the second drainage channel after being squeezed at the position of the second drainage channel.

9. The heat dissipation module according to claim 8, characterized in that: The plurality of extension rods are all recessed in the direction opposite to the rotation direction of the turntable, and the connection points between the plurality of extension rods and the turntable are evenly spaced and distributed on the edge of the turntable.

10. The heat dissipation module according to claim 6, characterized in that: The distance from the rotating disk to the first drainage channel is greater than the distance from the rotating disk to the second drainage channel.

11. The heat dissipation module according to claim 4, characterized in that: The power assembly comprises: The vibrating member is arranged on the shell wall of the shell near the first drainage channel, and is used to vibrate in the direction of the flexible cavity to push the refrigerant entering the shell from the pipeline to flow into the flexible cavity.

12. The heat dissipation module according to claim 11, characterized in that: The vibration element includes a piezoelectric ceramic sheet.

13. The heat dissipation module according to any one of claims 1 to 12, characterized in that: The flexible cavity comprises two inner walls opposite to each other in the thickness direction; One of the inner walls is formed with a plurality of support portions which are spaced apart in a direction toward the other inner wall, and the refrigerant can flow in a gap between two adjacent support portions.

14. The heat dissipation module according to claim 13, characterized in that: The support portion includes: a support convex hump, wherein a plurality of the support convex hump forms a plurality of rows of support convex hump groups in the flow direction of the refrigerant; Wherein, the plurality of supporting convex humps in each row of the supporting convex hump group are arranged at intervals and parallel to the flow direction.

15. The heat dissipation module according to any one of claims 1 to 12, characterized in that: The pipeline includes: a first pipeline and a second pipeline connected at two opposite sides of the flexible cavity; The flexible cavity comprises a first cavity and a second cavity which are arranged at intervals; The first pipe is connected to the inlet of the first cavity and the outlet of the second cavity; The second pipe communicates with the inlet of the second cavity and the outlet of the first cavity.

16. The heat dissipation module according to claim 15, characterized in that: The power structure of the heat dissipation module includes a first power structure, wherein the first power structure is connected between the first pipeline and the inlet of the first cavity; and / or, The power structure of the heat dissipation module includes a second power structure; wherein the second power structure is connected between the inlet of the second cavity and the second pipeline.

17. The heat dissipation module according to claim 15, characterized in that: The first pipe and the second pipe have different bending states; Wherein, a positioning mark is set on the first pipe, and the positioning mark is used to locate the installation position of the heat dissipation module.

18. The heat dissipation module according to any one of claims 1 to 12, characterized in that: The heat dissipation module includes a flexible heat dissipation film; The flexible cavity and the pipeline are formed in the flexible heat dissipation film.

19. The heat dissipation module according to claim 18, characterized in that: The flexible heat dissipation film includes a metal film or a plastic film.

20. The heat dissipation module according to any one of claims 1 to 12, characterized in that: The heat dissipation module also includes: A heat sink covers the pipe.

21. A folding device, characterized in that: include: The middle frame comprises a folding portion and a first folding frame body and a second folding frame body connected to opposite sides of the folding portion along a first direction; The heat dissipation module according to any one of claims 1 to 20; Wherein, the flexible cavity of the heat dissipation module is distributed at the folding portion, and the pipelines of the heat dissipation module are distributed at the first folding frame and the second folding frame.

22. The folding device according to claim 21, characterized in that The heat dissipation module is embedded in the middle frame; or, The heat dissipation module is sandwiched between the middle frame and the display screen of the folding device along the second direction; or, The heat dissipation module is sandwiched between the middle frame and the back shell of the folding device along the second direction.

23. The folding device according to claim 22, characterized in that The folding device has a hot zone and a cold zone; the heat of the folding device in the hot zone is greater than the heat of the folding device in the cold zone; The orthographic projections of the first pipe of the heat dissipation module and the hot zone along the second direction at least partially overlap; The orthographic projections of the first pipeline, the second pipeline of the heat dissipation module, and the power structure of the heat dissipation module along the second direction are at least partially located in the cold zone.

24. The folding device according to claim 23, characterized in that The main board of the folding device is located in the hot zone.

25. The folding device according to claim 24, characterized in that The folding device also includes: The control module is arranged on the main board and is electrically connected to the driving motor of the heat dissipation module or the vibration member of the heat dissipation module. It is used to control the driving motor to drive the rotating member of the heat dissipation module to rotate or control the vibration member to vibrate when it is detected that the working heat of the folding device exceeds a heat threshold.

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