Electronic device

Abstract

The present application discloses an electronic device, comprising: a housing; a main board disposed within the housing; a battery disposed within the housing; a fluid driving mechanism disposed between the main board and the battery, the fluid driving mechanism including a first cavity and a second cavity, the first cavity having a first inlet and a first outlet, and the second cavity having a second inlet and a second outlet; a first heat exchange medium pipe disposed on the main board, a first end of the first heat exchange medium pipe being communicated with the first inlet, and a second end of the first heat exchange medium pipe being communicated with the second outlet; a second heat exchange medium pipe, at least a part of which is disposed in an installation area for installing the battery, a first end of the second heat exchange medium pipe being communicated with the second inlet, and a second end of the second heat exchange medium pipe being communicated with the first outlet.

Description

Technical Field

[0001] This application belongs to the technical field of electronic devices, and particularly relates to an electronic device. Background Art

[0002] Currently, with the development of the mobile phone industry, the frequency of the mobile phone processor is getting higher and higher, resulting in greater power consumption and more serious heat generation. If the heat generated by the mobile phone cannot be dissipated in time, it will affect the processing speed of chips such as the central processing unit of the mobile phone, and in severe cases, it will cause the failure of electronic devices such as the battery. Moreover, serious heat generation of the mobile phone will also affect the user's operation experience.

[0003] In the patent application with the publication number CN111031763A, the heat dissipation of the main board is achieved through a single-cycle hydraulic pump. The main board heat pipe surrounds the main board, and the battery heat pipe surrounds the battery. The main board heat pipe is connected to the battery heat pipe through a gear pump to form a single-cycle flow path. When the gear pump rotates, it pushes the heat exchange medium in the main board heat pipe and the battery heat pipe to flow unidirectionally in a cycle. After heat exchange is achieved through the gear pump, the heat in the main board area is dissipated to the area around the battery. However, in this solution, the flow resistance of the heat exchange medium is large, the heat dissipation effect is poor, the high-temperature and low-temperature liquids are mixed in the gear pump, the heat diffusion effect is poor, the comprehensive heat dissipation efficiency is low, and since the heat of the main board is continuously sent to the battery area, if the battery area temperature is too high, it is easy to cause battery safety, there are potential safety hazards. Summary of the Invention

[0004] This application aims to provide an electronic device, which at least solves one of the problems of poor heat dissipation effect, low heat dissipation efficiency and potential safety hazards to the battery when the electronic device adopts a single-cycle hydraulic pump heat dissipation scheme.

[0005] To solve the above technical problems, this application is implemented as follows:

[0006] An embodiment of this application provides an electronic device, including:

[0007] A housing;

[0008] A main board, disposed inside the housing;

[0009] A battery, disposed inside the housing;

[0010] A fluid driving mechanism, disposed between the main board and the battery. The fluid driving mechanism includes a first cavity and a second cavity. The first cavity has a first inlet and a first outlet, and the second cavity has a second inlet and a second outlet;

[0011] A first heat exchange medium pipe, disposed on the main board. The first end of the first heat exchange medium pipe is communicated with the first inlet, and the second end of the first heat exchange medium pipe is communicated with the second outlet;

[0012] The second heat exchange medium pipe is at least partially disposed in the installation area for installing the battery. The first end of the second heat exchange medium pipe is communicated with the second inlet, and the second end of the second heat exchange medium pipe is communicated with the first outlet.

[0013] In an embodiment of the present application, the fluid driving mechanism is disposed between the main board and the battery. The fluid driving mechanism includes a first cavity and a second cavity. Under the action of the fluid driving mechanism, the heat exchange medium in the first heat exchange medium pipe flows to the first cavity and then flows through the first cavity to the second heat exchange medium pipe. The heat exchange medium in the second heat exchange medium pipe flows to the second cavity, thereby delivering the heat generated in the main board area to the area where the battery with a lower temperature is located, reducing the temperature at the main board, and improving the heat dissipation effect of the main board area. Among them, the first cavity and the second cavity are provided in the fluid driving mechanism, so that the heat exchange medium in the first heat exchange medium pipe flows to the first cavity, and the heat exchange medium in the second heat exchange medium pipe flows to the second cavity, reducing the flow resistance of the two heat exchange media in the fluid driving mechanism, and also avoiding the mixing of the heat exchange medium in the first heat exchange medium pipe and the heat exchange medium in the second heat exchange medium pipe in the fluid driving mechanism, making the temperature difference between the heat exchange medium in the first heat exchange medium pipe and the heat exchange medium in the second heat exchange medium pipe larger, thereby improving the heat dissipation effect on the main board area.

[0014] Additional aspects and advantages of the present application will be given in part in the following description, become apparent in part from the following description, or be learned through the practice of the present application. Description of the Drawings

[0015] The above and / or additional aspects and advantages of the present application will become apparent and be readily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0016] Figure 1 is one of the schematic diagrams of the electronic device according to the embodiment of the present application;

[0017] Figure 2 is another schematic diagram of the electronic device according to the embodiment of the present application;

[0018] Figure 3 is according to Figure 2 the exploded structural schematic diagram of the electronic device according to the illustrated embodiment;

[0019] Figure 4 is according to Figure 2 another exploded structural schematic diagram of the electronic device according to the illustrated embodiment;

[0020] Figure 5 is the third schematic diagram of the electronic device according to the embodiment of the present application;

[0021] Figure 6 is the fourth schematic diagram of the electronic device according to the embodiment of the present application;

[0022] Figure 7 It is a circuit schematic diagram of the thermistor in the main board area and the thermistor in the battery area and the motor resistance according to an embodiment of the present application;

[0023] Figure 8 It is a schematic diagram of the flow rate adjustment of the drive motor according to the temperature of the main board area and the temperature of the battery area in an embodiment of the present application.

[0024] Reference numerals:

[0025] 1 housing, 2 main board, 3 battery, 4 fluid driving mechanism, 40 first cavity, 400 first inlet, 402 first outlet, 41 second cavity, 410 second inlet, 412 second outlet, 42 drive motor, 43 first gear pump, 430 first base, 4302 first groove, 4304 first through hole, 432 first cover, 434 first gear set, 44 second gear pump, 440 second base, 4402 second groove, 4404 second through hole, 442 second cover, 444 second gear set, 45 seal, 46 first bevel gear, 47 second bevel gear, 48 connecting rod, 480 first connecting rod, 482 second connecting rod, 49 seat body, 5 first heat exchange medium pipe, 6 second heat exchange medium pipe, 7 first heat conducting film. Detailed implementation manners

[0026] The embodiments of the present application will be described in detail below. The examples of the embodiments are shown in the drawings, where the same or similar reference numerals denote the same or similar elements or elements with the same or similar functions from beginning to end. The embodiments described below by referring to the drawings are exemplary and are only used to explain the present application and should not be construed as a limitation to the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present application without creative efforts belong to the scope of protection of the present application.

[0027] The terms "first" and "second" in the description and claims of the present application may explicitly or implicitly include one or more of such features. In the description of the present application, unless otherwise specified, the meaning of "a plurality" is two or more.

[0028] In the description of the present application, it should be noted that, unless otherwise clearly specified and limited, the terms "mounted", "connected" and "connected" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific situations.

[0029] The following will describe an electronic device according to an embodiment of the present application in conjunction with Figures 1 to 8 the accompanying drawings.

[0030] As shown in Figure 1 , Figure 5 and Figure 6 , an electronic device according to some embodiments of the present application includes a housing 1; a main board 2 disposed within the housing 1; a battery 3 disposed within the housing 1; a fluid driving mechanism 4 disposed between the main board 2 and the battery 3, the fluid driving mechanism 4 including a first cavity 40 and a second cavity 41, the first cavity 40 having a first inlet 400 and a first outlet 402, and the second cavity 41 having a second inlet 410 and a second outlet 412; a first heat exchange medium pipe 5 disposed on the main board 2, a first end of the first heat exchange medium pipe 5 communicating with the first inlet 400, and a second end of the first heat exchange medium pipe 5 communicating with the second outlet 412; a second heat exchange medium pipe 6 at least partially disposed in an installation area for installing the battery 3, a first end of the second heat exchange medium pipe 6 communicating with the second inlet 410, and a second end of the second heat exchange medium pipe 6 communicating with the first outlet 402.

[0031] In the electronic device according to the embodiment of the present application, the fluid driving mechanism 4 is disposed between the main board 2 and the battery 3. The fluid driving mechanism 4 includes a first cavity 40 and a second cavity 41. Under the action of the fluid driving mechanism 4, the heat exchange medium in the first heat exchange medium pipe 5 flows into the first cavity 40 and then flows through the first cavity 40 to the second heat exchange medium pipe 6, and the heat exchange medium in the second heat exchange medium pipe 6 flows into the second cavity 41, thereby delivering the heat generated in the area of the main board 2 to the area where the battery 3 with a lower temperature is located, reducing the temperature at the main board 2 and improving the heat dissipation effect in the area of the main board 2. Among them, the first cavity 40 and the second cavity 41 are provided in the fluid driving mechanism 4, so that the heat exchange medium in the first heat exchange medium pipe 5 flows toward the first cavity 40, and the heat exchange medium in the second heat exchange medium pipe 6 flows toward the second cavity 41, reducing the flow resistance of the two heat exchange media in the fluid driving mechanism 4, and also avoiding the mixing of the heat exchange medium in the first heat exchange medium pipe 5 and the heat exchange medium in the second heat exchange medium pipe 6 in the fluid driving mechanism 4, making the temperature difference between the heat exchange medium in the first heat exchange medium pipe 5 and the heat exchange medium in the second heat exchange medium pipe 6 larger, thereby improving the heat dissipation effect on the area of the main board 2.

[0032] It can be understood that the first cavity 40 and the second cavity 41 are not connected.

[0033] In a specific application, the housing 1 includes a middle frame, and a gap is formed between the battery 3 and the middle frame. The gap is disposed around the battery 3, and at least a part of the second heat exchange medium pipe 6 is disposed along the gap.

[0034] As shown in Figure 2 , Figure 3 andFigure 4 As shown, according to some embodiments of the present application, the fluid drive mechanism 4 includes: a drive motor 42; a first gear pump 43, the first gear pump 43 is provided with a first cavity 40, and the drive motor 42 is driven and connected to the first gear pump 43; a second gear pump 44 is provided on a side of the first gear pump 43 away from the drive motor 42, the second gear pump 44 is provided with a second cavity 41, and the second gear pump 44 is driven and connected to the first gear pump 43.

[0035] In this embodiment, the fluid drive mechanism 4 includes a drive motor 42, a first gear pump 43 and a second gear pump 44. The first gear pump 43 is provided with a first cavity 40, and the second gear pump 44 is provided with a second cavity 41. Under the drive of the drive motor 42, through the joint action of the first gear pump 43 and the second gear pump 44, the heat exchange medium in the first heat exchange medium pipe 5 flows to the first cavity 40, and the heat exchange medium in the second heat exchange medium pipe 6 flows to the second cavity 41, thereby reducing the flow resistance of the two heat exchange media in the fluid drive mechanism 4, accelerating the flow speed of the heat exchange medium, and thereby improving the heat exchange effect.

[0036] In a specific application, the driving motor 42 rotates, driving the first gear pump 43 to rotate. First, after the first gear pump 43 rotates, positive pressure is formed at the first outlet 402 and negative pressure is formed at the first inlet 400, and the heat exchange medium in the first heat exchange medium pipe 5 in the main board 2 area is introduced into the first gear pump 43. At the same time, the heat exchange medium between the gears is squeezed into the first outlet 402. Continuous operation enables the liquid at the first inlet 400 to be continuously squeezed out to the first outlet 402 through the pressure of the first gear pump 43.

[0037] At the same time, the rotation of the first gear pump 43 drives the second gear pump 44 to rotate, so that the second gear pump 44 forms a positive pressure at the second outlet 412 of the second cavity 41 and a negative pressure at the second inlet 410. The low-temperature heat exchange medium of the second heat exchange medium pipe 6 in the battery 3 area is introduced into the second gear pump 44, and the heat exchange medium between the gears is squeezed into the second outlet 412. Continuous operation ensures that the liquid at the second inlet 410 is continuously squeezed out to the second outlet 412 through the pressure of the second gear pump 44.

[0038] Specifically, the first gear pump 43 and the second gear pump 44 are mounted on the seat 49 .

[0039] like Figure 2 and Figure 3As shown, according to some embodiments of the present application, the first gear pump 43 includes a first base 430, a first cover 432, and a first gear set 434. The first base 430 and the first cover 432 enclose a first cavity 40, and the first gear set 434 is disposed in the first cavity 40. The drive motor 42 is drivingly connected to the first gear set 434. The second gear pump 44 includes a second base 440, a second cover 442, and a second gear set 444. The second base 440 and the second cover 442 enclose a second cavity 41, and the second gear set 444 is disposed in the second cavity 41. The first gear set 434 is drivingly connected to the second gear set 444 through a connecting rod 48.

[0040] In this embodiment, the first gear pump 43 includes a first base 430, a first cover 432, and a first gear set 434. The first base 430 and the first cover 432 enclose a first cavity 40, and the first gear set 434 is disposed in the first cavity 40. The second gear pump 44 includes a second base 440, a second cover 442, and a second gear set 444. The second base 440 and the second cover 442 enclose a second cavity 41, so that the second gear set 444 is placed in the second cavity 41. Among them, the first gear set 434 and the second gear set 444 are connected by a connecting rod 48. The drive motor 42 drives the first gear set 434 to rotate, and the first gear set 434 drives the second gear set 444 to rotate.

[0041] Specifically, the first gear set 434 includes a first driving gear and a first driven gear, and the first driving gear meshes with the first driven gear. The second gear set 444 includes a second driving gear and a second driven gear that mesh with each other. The input end of the first driving gear is fixedly connected to the output shaft of the drive motor 42, and the output end of the first driving gear is fixedly connected to the input end of the second driving gear through a connecting rod 48. In this way, under the action of the first gear set 434 and the second gear set 444, the flow resistance of the heat exchange medium in the first cavity 40 and the heat exchange medium in the second cavity 41 can be reduced, and further, the flow velocity of the heat exchange medium in the first cavity 40 and the heat exchange medium in the second cavity 41 can be increased to improve the heat dissipation effect of the electronic device.

[0042] Such as Figure 3 and Figure 4As shown, according to some embodiments of the present application, on one side of the first base 430 facing the drive motor 42, there is a first groove 4302. The first cover 432 and the first groove 4302 enclose a first cavity 40. On one side of the second base 440 facing away from the drive motor 42, there is a second groove 4402. The second cover 442 and the second groove 4402 enclose a second cavity 41. Among them, at the bottom of the first groove 4302, there is a first through hole 4304, and at the bottom of the second groove 4402, there is a second through hole 4404. The first through hole 4304 and the second through hole 4404 are arranged opposite to each other, and the connecting rod 48 is inserted into the first through hole 4304 and the second through hole 4404.

[0043] In this embodiment, on one side of the first base 430 facing the drive motor 42, there is a first groove 4302, and on one side of the second base 440 facing away from the drive motor 42, there is a second groove 4402, so that the first groove 4302 and the second groove 4402 are arranged opposite to each other. In this way, at the bottom of the first groove 4302, there is a first through hole 4304, and at the bottom of the second groove 4402, there is a second through hole 4404, enabling the connecting rod 48 to be inserted into the first through hole 4304 and the second through hole 4404, realizing the transmission of power from the first gear set 434 to the second gear set 444.

[0044] In specific applications, the first base 430 is attached to the second base 440, shortening the distance between the first gear set 434 and the second gear set 444, and further shortening the length of the connecting rod 48, avoiding the reduction of the strength of the connecting rod 48 due to excessive length during transmission.

[0045] Further, as Figure 3 and Figure 4 shown, the connecting rod 48 includes a first connecting rod 480 and a second connecting rod 482. The first connecting rod 480 is fixed in the first through hole 4304 and the second through hole 4404. The second connecting rod 482 is arranged inside the second connecting rod 482 and can rotate relative to the second connecting rod 482. The second connecting rod 482 is connected to the first gear set 434 and the second gear set 444.

[0046] According to some embodiments of the present application, the electronic device further includes: a seal 45, arranged on the periphery of the connecting rod 48. The seal 45 is used to seal the gap between the connecting rod 48 and the first through hole 4304, and the seal 45 is used to seal the gap between the connecting rod 48 and the second through hole 4404.

[0047] In this embodiment, the electronic device further includes a seal 45. The seal 45 is arranged on the periphery of the connecting rod 48 to seal the gap between the connecting rod 48 and the first through hole 4304, and the gap between the connecting rod 48 and the second through hole 4404, avoiding liquid leakage from the first cavity 40 and the second cavity 41.

[0048] It can be understood that the seal 45 includes a first seal and a second seal. The first seal is disposed at the first through hole 4304 and surrounds the circumference of the connecting rod 48. The second seal is disposed at the second through hole 4404 and surrounds the circumference of the connecting rod 48.

[0049] Furthermore, a third through hole is provided on the first cover plate. The drive shaft of the drive motor 42 is connected to the first gear set 434 through the third through hole. A third seal 45 is provided at the third through hole for sealing the gap between the third through hole and the drive shaft of the drive motor 42 to prevent liquid leakage.

[0050] Specifically, the seal 45 is an O-ring.

[0051] According to some embodiments of the present application, the fluid driving mechanism 4 further includes: a first bevel gear 46 connected to the output shaft of the drive motor 42; a second bevel gear 47 connected to the input shaft of the first gear pump 43, and the first bevel gear 46 meshes with the second bevel gear 47.

[0052] In this embodiment, the fluid driving mechanism 4 further includes a first bevel gear 46 and a second bevel gear 47. The first bevel gear 46 is connected to the output shaft of the drive motor 42, the second bevel gear 47 meshes with the first bevel gear 46, and the second bevel gear 47 is connected to the input shaft of the first gear pump 43, thereby realizing the transmission of power from the drive motor 42 to the first gear pump 43. Through the meshing transmission of the first bevel gear 46 and the second bevel gear 47, the power can be transmitted smoothly, which is beneficial to the cooperation between the drive motor 42 and the first gear pump 43.

[0053] Specifically, the first bevel gear 46 includes a vertical bevel gear, and the second bevel gear 47 includes a horizontal bevel gear.

[0054] According to some embodiments of the present application, the electronic device further includes: a first temperature detection component disposed on the battery 3 for detecting the temperature of the battery 3; a control device. The first temperature detection component and the fluid driving mechanism 4 are both connected to the control device, and the control device is used to control the fluid driving mechanism 4 according to the temperature detected by the first temperature detection component to adjust the flow rate of the heat exchange medium in the fluid driving mechanism 4.

[0055] In this embodiment, the electronic device further includes a first temperature detection component and a control device. The first temperature detection component is used to detect the temperature of the battery 3, and then the control device controls the fluid driving mechanism 4 to work according to the temperature of the battery 3 to adjust the flow rate of the heat exchange medium in the fluid driving structure, thereby improving the heat exchange efficiency.

[0056] In a specific application, the control device controls the fluid driving mechanism 4 so that the flow rate of the heat exchange medium is proportional to the temperature of the battery 3. When the temperature detected by the first temperature detection component is greater than the first temperature threshold, it indicates that the temperature in the battery 3 area is relatively high. Furthermore, the fluid driving mechanism 4 drives the heat exchange medium to flow faster, improving the heat dissipation efficiency of the fluid driving mechanism 4, thereby reducing the temperature of the battery 3 and reducing the usage risk of the battery 3.

[0057] Furthermore, as Figure 7 and Figure 8 shown, the battery 3, the thermistor R 热敏 and the resistance R of the motor 电机 constitute a circuit. Specifically, the first temperature detection component includes the thermistor R2. When the battery 3 generates heat during charging or receives too much input heat, the resistance value of the thermistor R2 becomes smaller. Under the condition of a constant voltage state, the current in the circuit increases. The increase in current causes the rotational speed of the driving motor 42 to increase. After the rotational speed of the driving motor 42 increases, the heat dissipation efficiency of the fluid driving mechanism 4 is improved, thereby reducing the temperature of the battery 3 and reducing the usage risk of the battery 3.

[0058] According to some embodiments of the present application, the electronic device further includes: a second temperature detection component, disposed on the main board 2, for detecting the temperature of the main board 2. The control device is connected to the second temperature detection component and is used to control the fluid driving mechanism 4 according to the temperature detected by the second temperature detection component to adjust the flow rate of the heat exchange medium in the fluid driving mechanism 4.

[0059] In this embodiment, the electronic device further includes a second temperature detection component. The second temperature detection component is disposed at the main board 2 and is used to detect the temperature of the main board 2. In this way, the control device can control the operation of the fluid driving mechanism 4 according to the temperature of the main board 2, and further adjust the flow rate of the heat exchange medium in the fluid driving mechanism 4 to adjust the heat exchange efficiency of the fluid driving mechanism 4.

[0060] In a specific application, the control device controls the fluid driving mechanism 4 so that the flow rate of the heat exchange medium is proportional to the temperature of the main board 2. When the temperature detected by the second temperature detection component is greater than the second temperature threshold, it indicates that the temperature in the main board 2 area is relatively high. Furthermore, the fluid driving mechanism 4 drives the heat exchange medium to flow faster, improving the heat dissipation efficiency of the fluid driving mechanism 4, thereby reducing the temperature of the main board 2.

[0061] Furthermore, as Figure 7 and Figure 8As shown, the second temperature detection component includes a thermistor R1. When the main board 2 generates a large amount of heat and the temperature rises, the resistance value of the thermistor R1 becomes smaller. Under the condition of a constant voltage, the current in the circuit increases. The increase in current causes the rotational speed of the drive motor 42 to increase. After the rotational speed of the drive motor 42 increases, the heat dissipation efficiency of the liquid drive mechanism is improved, thereby reducing the temperature of the main board 2 area, forming a closed temperature automatic adjustment system.

[0062] It can be understood that R 热敏 includes a thermistor R1 and a thermistor R2.

[0063] According to some embodiments of the present application, the first gear pump 43 is a heat-insulating gear pump, and the second gear pump 44 is a heat-insulating gear pump.

[0064] In this embodiment, the first gear pump 43 is a heat-insulating gear pump, and the second gear pump 44 is a heat-insulating gear pump, thereby avoiding heat conduction between the first gear pump 43 and the second gear pump 44, and avoiding heat transfer between the heat exchange medium in the first cavity 40 and the heat exchange medium in the second cavity 41, making the temperature difference between the heat exchange medium in the first heat exchange medium pipe 5 and the heat exchange medium in the second heat exchange medium pipe 6 larger, facilitating heat absorption when entering the main board 2 area and heat dissipation when entering the battery 3 area, thereby improving the heat exchange efficiency.

[0065] It can be understood that the first gear pump 43 and the second gear pump 44 are made of heat-insulating materials.

[0066] According to some embodiments of the present application, the housing 1 includes a middle frame, and the second heat exchange medium pipe 6 is disposed in the gap between the middle frame and the battery 3 and surrounds the battery 3 on all sides.

[0067] In this embodiment, the housing 1 includes a middle frame, the second heat exchange medium pipe 6 is arranged at the gap between the middle frame and the battery 3, and surrounds the battery 3 on all sides, thereby facilitating heat exchange between the heat exchange medium in the second heat exchange medium pipe 6 and the low-temperature area where the battery 3 is located, achieving the purpose of rapid cooling.

[0068] According to some embodiments of the present application, the main board 2 is provided with heat-generating functional devices and a shielding cover. The first heat exchange medium pipe 5 is arranged around the heat-generating functional devices, and the shielding cover covers the heat-generating functional devices.

[0069] In this embodiment, heat-generating functional devices and a shielding cover are arranged on the main board 2. The heat-generating functional devices can be the central processing unit chips of electronic devices. In order to improve the heat dissipation efficiency, the first heat exchange medium pipe 5 is arranged around the heat-generating functional devices, so as to be able to dissipate the heat generated by the heat-generating functional devices during operation in all directions. The shielding cover covers the heat-generating functional devices, thereby being able to prevent the heat-generating functional devices from generating electromagnetic interference to other electronic devices of the electronic device, and also being able to prevent the heat-generating functional devices from being affected by the electromagnetic interference of other electronic devices.

[0070] Specifically, the heat generated by the heat generating functional device can be transferred to the shielding cover, and then the heat is taken away by the first heat exchange medium pipe 5 on the periphery of the shielding cover.

[0071] Furthermore, the shielding cover includes a metal cover, which can improve the heat conduction efficiency.

[0072] According to some embodiments of the present application, the electronic device further includes: a first heat conduction film 7, the first heat conduction film 7 covers the shielding cover, the first heat conduction film 7 is connected to the main board 2, and the first heat exchange medium pipe 5 is in contact with the heat conduction film; a second heat conduction film, the second heat conduction film is stacked with the battery 3, and the second heat exchange medium pipe 6 is in contact with the second heat conduction film.

[0073] In this embodiment, the electronic device further includes a first heat conduction film 7 and a second heat conduction film. The first heat conduction film 7 covers the shielding cover and can transfer the heat on the shielding cover and the heat generating functional device to the first heat conduction film 7, and then transfer it to the first heat exchange medium pipe 5. Correspondingly, the second heat conduction film is stacked with the battery 3. In this way, the second heat exchange medium pipe 6 can transfer the heat to the installation area of the battery 3 through the second heat conduction film, thereby increasing the heat dissipation area and improving the heat dissipation efficiency.

[0074] Furthermore, the first heat conduction film 7 includes a heat conductive silica gel film.

[0075] In specific applications, the heat dissipation system of the electronic device can be divided into two subsystems: a thermal circulation system and a gear hydraulic pump system:

[0076] 1) Thermal circulation system: first heat conduction medium pipe, second heat conduction medium pipe, first heat dissipation film, second heat dissipation film, etc.;

[0077] 2) Gear hydraulic pump system: drive motor 42, first base 430 and second base 440, first cover 432 and second cover 442, first gear set 434 and second gear set 444, 3 sealing rings, connecting rod 48, etc.

[0078] Based on the mechanical principles of the gear hydraulic pump and bevel gears, the present application drives the first gear pump 43 and the second gear pump 44 to operate through the drive motor 42, and then realizes the heat exchange of the heat exchange medium in the first heat exchange medium pipe 5 and the second heat exchange medium pipe 6, which can produce the following effects:

[0079] 1) Compared with the single-cycle solution, the present application uses the first gear pump 43 and the second gear pump 44 to drive the heat exchange medium in the first heat exchange medium pipe 5 and the second heat exchange medium pipe 6 to flow. The driving force is greater, the reduced flow resistance is large, the flow speed of the heat exchange medium in the first heat exchange medium pipe 5 and the second heat exchange medium pipe 6 is fast, and the heat dissipation effect is better.

[0080] 2) Compared with the single-loop solution, since the present application uses a double-loop flowing liquid, the high-temperature and low-temperature liquids flow through an independent pipeline respectively in the liquid driving mechanism, resulting in a large temperature difference of the heat exchange medium in the first heat exchange medium pipe 5 and the second heat exchange medium pipe 6, better heat diffusion effect, and better comprehensive heat dissipation efficiency.

[0081] 3) Compared with the single-loop solution, since the present application designs a temperature-sensitive resistor in the battery 3 area, even if the heat of the main board 2 is continuously sent to the battery 3 area, if the temperature of the battery 3 area is too high, it can accelerate rotation to lower the temperature, thereby reducing the risk of battery 3 safety and reducing the potential safety hazard of the battery 3.

[0082] It should be noted that the electronic device can be a smart phone, a tablet computer, an e-reader, a wearable device, etc., which are not listed one by one here.

[0083] In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "schematic embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0084] Although the embodiments of the present application have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and purposes of the present application, and the scope of the present application is defined by the claims and their equivalents.

Claims

1. An electronic device, characterized in that, include: case; a mainboard, disposed in the housing; a battery, disposed in the housing; a fluid drive mechanism disposed between the mainboard and the battery, the fluid drive mechanism comprising a first cavity and a second cavity, the first cavity and the second cavity being disconnected, the first cavity having a first inlet and a first outlet, and the second cavity having a second inlet and a second outlet; a first heat exchange medium pipe, provided on the main board, wherein a first end of the first heat exchange medium pipe is connected to the first inlet, a second end of the first heat exchange medium pipe is connected to the second outlet, and the first heat exchange medium pipe is used to absorb heat; The second heat exchange medium pipe is at least partially arranged in the installation area for installing the battery, the first end of the second heat exchange medium pipe is connected to the second inlet, and the second end of the second heat exchange medium pipe is connected to the first outlet.

2. The electronic device according to claim 1, wherein The fluid drive mechanism comprises: Drive motor; a first gear pump, wherein the first gear pump is provided with the first cavity, and the drive motor is drivingly connected to the first gear pump; The second gear pump is arranged on a side of the first gear pump away from the driving motor. The second gear pump is provided with the second cavity. The second gear pump is in driving connection with the first gear pump.

3. The electronic device according to claim 2, wherein: The first gear pump includes a first base, a first cover, and a first gear set. The first base and the first cover together form a first cavity. The first gear set is disposed in the first cavity. The drive motor is drivingly connected to the first gear set. The second gear pump includes a second base, a second cover and a second gear set. The second base and the second cover together enclose the second cavity. The second gear set is arranged in the second cavity. The first gear set is transmission-connected to the second gear set via a connecting rod.

4. The electronic device according to claim 3, wherein: A first groove is provided on a side of the first base facing the drive motor, and the first cover and the first groove together enclose the first cavity; A second groove is provided on a side of the second base facing away from the drive motor, and the second cover and the second groove together enclose the second cavity. The bottom of the first groove is provided with a first through hole, the bottom of the second groove is provided with a second through hole, the first through hole and the second through hole are arranged opposite to each other, and the connecting rod is passed through the first through hole and the second through hole.

5. The electronic device according to claim 4, wherein Also includes: A sealing member is provided on the peripheral side of the connecting rod, and is used to seal the gap between the connecting rod and the first through hole, and is used to seal the gap between the connecting rod and the second through hole.

6. The electronic device according to claim 2, wherein The fluid drive mechanism further comprises: a first bevel gear connected to an output shaft of the drive motor; The second bevel gear is connected to the input shaft of the first gear pump, and the first bevel gear is meshed with the second bevel gear.

7. The electronic device according to any one of claims 1 to 6, characterized in that, Also includes: a first temperature detection element, provided on the battery, for detecting the temperature of the battery; A control device, wherein the first temperature detection component and the fluid driving mechanism are both connected to the control device, and are used to control the fluid driving mechanism according to the temperature detected by the first temperature detection component so as to adjust the flow rate of the heat exchange medium in the fluid driving mechanism; A second temperature detection component, which is arranged on the main board and is used to detect the temperature of the main board. The control device is connected to the second temperature detection component and is used to control the fluid driving mechanism according to the temperature detected by the second temperature detection component so as to adjust the flow rate of the heat exchange medium in the fluid driving mechanism.

8. The electronic device according to any one of claims 1 to 6, characterized in that The housing includes a middle frame, and the second heat exchange medium pipe is arranged in the gap between the middle frame and the battery and surrounds the battery on its periphery.

9. The electronic device according to any one of claims 1 to 6, characterized in that, The main board is provided with a heat generating functional device and a shielding cover. The first heat exchange medium pipe is arranged around the heat generating functional device, and the shielding cover covers the heat generating functional device.

10. The electronic device according to claim 9, characterized in that, It further includes: A first heat conductive film, which covers the shielding cover. The first heat conductive film is connected to the main board, and the first heat exchange medium pipe is in contact with the heat conductive film; A second heat conductive film, which is stacked with the battery, and the second heat exchange medium pipe is in contact with the second heat conductive film.

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