Wireless charging device

Abstract

The utility model provides a wireless charging device. The wireless charging device comprises a housing which is provided with a charging side which is used for placing an electronic device; the charging coil is arranged in the shell, and the charging coil is arranged close to the charging side; the heat conduction membrane is arranged between the charging coil and the electronic equipment, a pipeline, an inlet and an outlet are arranged in the heat conduction membrane, the inlet and the outlet are communicated with the pipeline, and the pipeline is filled with a cooling medium; and the power device is arranged in the shell and is connected with the pipeline through the inlet and the outlet so as to drive the cooling medium. According to the wireless charging equipment provided by the embodiment of the invention, the heat dissipated by the charging coil and the electronic equipment can be absorbed through the heat-conducting diaphragm, and heat dissipation is carried out, so that the heat dissipation effect of the wireless charging equipment can be improved, the charging efficiency is further improved, and the electronic equipment is prevented from being blocked.

Description

Technical Field

[0001] The utility model relates to the technical field of charging equipment, and in particular to a wireless charging equipment. Background Art

[0002] With the development of wireless charging technology, wireless charging has gradually entered people's daily lives. At present, wireless charging technology mainly uses electromagnetic induction technology and electromagnetic resonance technology, which will generate heat when working, and when electronic devices are attached to wireless charging devices for wireless charging, they will also generate a lot of heat. As the temperature of the components and electronic devices of the wireless charging device rises, when the heat reaches the set safety threshold, the wireless charging device will reduce the charging power to ensure safety, and the electronic device will also freeze. Utility Model Content

[0003] In order to improve at least some of the above shortcomings or deficiencies, an embodiment of the present invention provides a wireless charging device.

[0004] Specifically, a wireless charging device provided by an embodiment of the utility model includes: a shell having a charging side, the charging side being used to place an electronic device; a charging coil arranged in the shell, and the charging coil is arranged close to the charging side; a thermally conductive film arranged between the charging coil and the electronic device, a pipe and an inlet and an outlet connected to the pipe are arranged in the thermally conductive film, and the pipe is filled with a cooling medium; and a power device arranged in the shell and connected to the pipe through the inlet and the outlet to drive the cooling medium.

[0005] In one embodiment of the present invention, a supporting flow guide is provided in the pipeline.

[0006] In one embodiment of the present invention, the supporting flow guide members include a plurality of supporting flow guide members, and the plurality of supporting flow guide members are arranged at intervals along the width direction of the pipeline.

[0007] In an embodiment of the present invention, the wireless charging device further includes: a heat dissipation structure, which is arranged in the housing and close to the thermal conductive film.

[0008] In one embodiment of the present invention, the pipeline includes a plurality of first pipelines connected in sequence, the plurality of first pipelines are arranged corresponding to the charging coils, and are arranged at intervals along the width direction of the thermal conductive film.

[0009] In an embodiment of the present invention, the pipeline further includes a second pipeline connected to the first pipeline, the second pipeline is arranged corresponding to the heat dissipation structure, and the second pipeline extends in the width direction of the thermal conductive film.

[0010] In one embodiment of the present utility model, the inlet and the outlet are respectively connected to the power device, and the inlet and the outlet are arranged on a side of the thermal conductive film close to the charging coil.

[0011] In one embodiment of the present invention, the inlet and the outlet are arranged on the same layer as the charging coil.

[0012] In one embodiment of the utility model, the heat dissipation structure includes: a radiator, which is arranged in the shell and thermally connected to the thermally conductive film; and / or a heat dissipation fan, which is arranged in the shell and is arranged close to the thermally conductive film.

[0013] In one embodiment of the present utility model, the wireless charging device further includes: a battery disposed in the housing; and a circuit board disposed in the housing, and the heat dissipation structure is thermally connected to the circuit board.

[0014] In one embodiment of the utility model, the shell is formed with a accommodating cavity; the shell also includes: a support member, which is arranged on a side of the accommodating cavity close to the charging coil, and the support member is provided with a charging coil accommodating portion, an avoidance position and a through hole, the charging coil is arranged on the charging coil accommodating portion, the thermally conductive diaphragm and the heat dissipation structure are connected by thermal conduction through the avoidance position, and the inlet and the outlet are connected to the power device through the through hole.

[0015] In one embodiment of the present invention, the material of the thermally conductive film is a non-electromagnetic interference material; or, the thermally conductive film is made of metal, and an avoidance position is provided on the thermally conductive film corresponding to the charging coil.

[0016] It can be seen from the above that the above technical features of the utility model can have one or more of the following beneficial effects: the wireless charging device provided in this embodiment is provided with a heat-conducting diaphragm between the charging coil and the electronic device, a pipe filled with a cooling medium is provided in the heat-conducting diaphragm, and a power device connected to the pipe is also provided. The cooling medium in the pipe can be driven by the power device to absorb the heat emitted by the charging coil and the electronic device and dissipate the heat, thereby improving the heat dissipation effect of the wireless charging device, further improving the charging efficiency, and avoiding the jamming of the electronic device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0018] Figure 1 A schematic diagram of the structure of a wireless charging device provided in an embodiment of the utility model.

[0019] Figure 2 for Figure 1 Schematic diagram of the exploded structure of a wireless charging device.

[0020] Figure 3 and Figure 4 for Figure 2 Schematic diagram of the structure of the medium thermal conductive diaphragm.

[0021] Figure 5 for Figure 2 Schematic diagram of the structure of the middle support.

[0022] Figure 6 for Figure 1 Another exploded structural diagram of a wireless charging device.

[0023] Main component number:

[0024] 10. Wireless charging device; 100. Shell; 110. First accommodating cavity; 120. Second accommodating cavity; 130. Support member; 131. Charging coil accommodating portion; 132. Avoidance position; 133. Through hole; 200. Thermal conductive film; 210. Pipe; 211. Support guide member; 212. First pipe; 213. Second pipe; 220. Inlet; 230. Outlet; 300. Charging coil; 400. Power device; 500. Radiator; 600. Cooling fan; 700. Battery; 800. Circuit board. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] See also Figure 1 and Figure 2 A wireless charging device 10 provided by an embodiment of the utility model includes: a housing 100 , a thermally conductive film 200 , a charging coil 300 and a power device 400 .

[0027] Specifically, the housing 100 may have a charging side, which may be a surface of the housing 100, for example, and the charging side is used to place an electronic device to wirelessly charge the electronic device. The charging coil 300 may include a coil, a magnet, etc., for example. The charging coil 300 is disposed in the housing 100, and the charging coil 300 is disposed close to the charging side, so that the electronic device can be wirelessly charged. The thermally conductive film 200 is disposed between the charging coil 300 and the electronic device to absorb and conduct the heat generated by the charging coil 300 and the electronic device, and to dissipate the heat.

[0028] See also Figure 2 and Figure 3 , the heat-conducting diaphragm 200 may be provided with a pipe 210 and an inlet 220 and an outlet 230 connected to the pipe 210, for example. The power device 400 may be, for example, a micro pump, specifically a rotor pump, a centrifugal pump or a piezoelectric pump, etc., of course, the present embodiment is not limited thereto. The power device 400 is disposed in the housing 100, and the power device 400 is connected to the pipe 210 through the inlet 220 and the outlet 230. The pipe 210 is filled with a cooling medium, and the cooling medium may be, for example, water, an ethylene glycol aqueous solution, oil or a refrigerant, etc., and may be specifically provided according to actual needs. The power device 400 is used to drive the cooling medium in the pipe 210.

[0029] By setting a thermally conductive film 200 between the charging coil 300 and the electronic device, a pipe 210 filled with a cooling medium is set in the thermally conductive film 200, and a power device 400 connected to the pipe 210 is also set. The cooling medium in the pipe 210 can be driven by the power device 400, and the heat emitted by the charging coil 300 and the electronic device can be absorbed and dissipated, thereby improving the heat dissipation effect of the wireless charging device 10, further improving the charging efficiency, and avoiding the jamming of the electronic device.

[0030] In some implementations of this embodiment, the thermally conductive film 200 is disposed on the charging side of the housing 100, and the thermally conductive film 200 is a part of the housing 100, and the electronic device can be directly placed on the surface of the thermally conductive film 200. In this way, the thermally conductive film 200 can directly conduct heat with the electronic device and the charging coil to further improve the heat dissipation effect. In other implementations, the housing 100 may, for example, include an upper housing, and the thermally conductive film 200 is disposed between the upper housing and the charging coil 300. When in use, the electronic device can, for example, be placed on the surface of the upper housing, and the thermally conductive film 200 conducts heat with the electronic device through the upper housing. Through the provision of the upper housing, the thermally conductive film 200 can be protected. In some further implementations, the thermally conductive film 200 may, for example, cover the entire outer surface of the housing 100, thereby further improving the heat dissipation effect.

[0031] In one implementation of this embodiment, the material of the thermally conductive film 200 may be, for example, a non-electromagnetic interference material, specifically, a material with good magnetic permeability such as PET (polyethylene terephthalate). In this way, the thermally conductive film 200 will not interfere with the charging of the electronic device by the charging coil 300, thereby avoiding affecting the charging efficiency. In another implementation of this embodiment, the material of the thermally conductive film 200 may also be, for example, a metal material, and a relief position is provided on the thermally conductive film 200 corresponding to the charging coil 300. By providing the relief position, the thermally conductive film 200 can be prevented from affecting the charging, and the metal material can improve the thermal conductivity efficiency of the thermally conductive film 200.

[0032] Furthermore, the wireless charging device 10 may also include a heat dissipation structure, which is disposed in the housing 100 and close to the heat-conducting film 200. The heat dissipation structure can further dissipate the heat conducted by the heat-conducting film 200, thereby further improving the heat dissipation effect. Specifically, the heat dissipation structure may include a radiator 500 and / or a heat dissipation fan 600.

[0033] The radiator 500 is made of, for example, a metal material, such as aluminum or copper, and the surface of the radiator 500 is set to be an uneven heat dissipation surface, which has a high thermal conductivity. The radiator 500 is disposed in the housing 100 and is thermally connected to the thermally conductive film 200. The thermally conductive film 200 can, for example, conduct the heat of the charging coil 300 to the radiator 500 through the flow of the cooling medium, and the radiator 500 further dissipates the heat conducted by the thermally conductive film 200 to the surrounding environment for heat dissipation, thereby further improving the heat dissipation effect.

[0034] The cooling fan 600 may be, for example, a centrifugal fan that can generate airflow. The cooling fan 600 is disposed in the housing 100, and may be, for example, disposed near the thermally conductive film 200. By blowing air through the cooling fan 600, the heat dissipation of the thermally conductive film 200 can be accelerated to further improve the heat dissipation effect. In another implementation of the present embodiment, the cooling fan 600 may be, for example, disposed near the radiator 500. The thermally conductive film 200 transfers the heat of the charging coil 300 to the radiator 500 through the thermally conductive film 200 through the flow of the cooling medium. The radiator 500 further dissipates the heat transferred from the thermally conductive film 200 to the surrounding environment for heat dissipation. The cooling fan 600 may increase the air cooling effect on the surface of the radiator 500, blow the heat out of the housing 100, and further improve the heat dissipation efficiency.

[0035] See also Figure 3For example, a support guide 211 may be provided in the pipe 210. The width of the pipe 210 is relatively large (the width range is, for example, one quarter to one third of the width of the housing 100). By providing the support guide 211 in the pipe 210, since the cooling medium will have a relatively large flow pressure under the drive of the power device 400, the support guide 211 can be provided to guide the cooling medium and share the flow pressure, thereby increasing the flow rate of the cooling medium while reducing the flow pressure of the cooling medium, and keeping the outer surface of the heat-conducting membrane 200 flat and not deformed. In a specific implementation of this embodiment, the support guide 211 may, for example, include a plurality of support guides 211, which are spaced apart along the width direction of the pipe 210.

[0036] In one implementation of this embodiment, see Figure 4 , the pipe 210 may, for example, include a plurality of first pipes 212 and a second pipe 213 connected in sequence. The plurality of first pipes 212 are arranged corresponding to the charging coil 300 and are arranged at intervals along the width direction of the thermally conductive film 200. By arranging the plurality of first pipes 212 corresponding to the charging coil 300, the heat generated by the charging coil 300 can be conducted; by arranging the plurality of first pipes 212 at intervals along the width direction of the thermally conductive film 200, the heat exchange efficiency at the charging coil 300 can be accelerated by reducing the number of pipe turning positions to avoid affecting the overall flow rate of the cooling medium. The second pipe 213 is arranged corresponding to the heat dissipation structure, and the second pipe 213 extends in the width direction of the thermally conductive film 200. By arranging the second pipe 213 corresponding to the heat dissipation structure and extending the second pipe 213 in the width direction of the thermally conductive film 200, the heat exchange with the heat dissipation structure can be accelerated, and the heat dissipation effect can be further improved. Further, the extension direction of the thermally conductive film 200 may, for example, correspond to the radiator 500 to further accelerate the heat exchange between the thermally conductive film 200 and the radiator 500. Of course, the number of the first pipe 212 and the second pipe 213 is not limited to Figure 4 The embodiments are limited to the embodiments in the specification and can be set according to actual needs.

[0037] In this embodiment, the inlet 220 and the outlet 230 are connected to the power device 400 respectively, and the inlet 220 and the outlet 230 can be, for example, arranged on a side of the thermal conductive film 200 close to the charging coil 300, and the inlet 220 and the outlet 230 and the charging coil 300 can be, for example, arranged in the same layer, that is, the inlet 220 and the outlet 230 and the charging coil 300 are arranged at intervals along the length direction of the wireless charging device 10. It should be noted that the inlet 220 and the outlet 230 are not limited to being arranged at intervals along the length direction of the wireless charging device 10. Through such an arrangement, the inlet 220 and the outlet 230 and the charging coil 300 occupy part of the common space, thereby saving space, making the internal space of the wireless charging device 10 more compact, and reducing the size of the wireless charging device 10.

[0038] See also Figure 5 and Figure 6 The wireless charging device 10 may, for example, further include a battery 700 and a circuit board 800. The battery 700 is disposed in the housing 100, the circuit board 800 is disposed in the housing 100, and the heat dissipation structure and the circuit board 800 may be connected by thermal conduction, for example, the circuit board 800 may be connected by thermal conduction to the heat sink 500 to dissipate the heat generated by the circuit board 800, thereby further improving the heat dissipation effect of the wireless charging device 10.

[0039] Further, the housing 100 may, for example, be formed with a receiving cavity, and the receiving cavity may, for example, include a first receiving cavity 110 and a second receiving cavity 120, and the battery 700, the circuit board 800, the heat dissipation structure and the power device 400 are all arranged in the receiving cavity, and specifically, for example, the battery 700 is arranged in the second receiving cavity 120, and the circuit board 800, the heat dissipation structure and the power device 400 are arranged in the first receiving cavity 110. The housing 100 may, for example, further include a support member 130, which is arranged on a side of the receiving cavity close to the charging coil 300, and the support member 130 is provided with a charging coil receiving portion 131, an avoidance position 132 and a through hole 133, and the charging coil 300 is arranged on the charging coil receiving portion 131, the heat conductive film 200 and the heat dissipation structure are connected by thermal conduction through the avoidance position 132, and the inlet 220 and the outlet 230 are connected to the power device 400 through the through hole 133. In this embodiment, the avoidance position 132 and the through hole 133 may be, for example, the same through hole, or may be, for example, a plurality of different through holes. Further, the radiator 500 may be, for example, disposed on the avoidance position 132, the thermally conductive film 200 and the radiator 500 may, for example, be connected by heat conduction by contacting the avoidance position 132, the cooling fan 600 may be disposed on the side of the radiator 500 away from the support 130, and the circuit board 800 may, for example, be disposed close to the radiator 500. Through such an arrangement, the various components in the wireless charging device 10 may be made compact, and the size of the wireless charging device 10 may be reduced.

[0040] It can be seen from the above that the above technical features of the utility model can have one or more of the following beneficial effects: the wireless charging device 10 provided in this embodiment is provided with a heat-conducting film 200 between the charging coil 300 and the electronic device, and a pipe 210 filled with a cooling medium is provided in the heat-conducting film 200, and a power device 400 connected to the pipe 210 is also provided. The cooling medium in the pipe 210 can be driven by the power device 400, and the heat emitted by the charging coil 300 and the electronic device can be absorbed and dissipated, thereby improving the heat dissipation effect of the wireless charging device 10, so as to further improve the charging efficiency and avoid the jamming of the electronic device.

[0041] In addition, it can be understood that the aforementioned embodiments are merely illustrative descriptions of the present invention. Under the premise that the technical features do not conflict, the structures do not contradict, and the purpose of the present invention is not violated, the technical solutions of the various embodiments can be arbitrarily combined and used in combination.

[0042] In the several embodiments provided in the present application, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. For example, the device embodiments described above are only schematic. For example, the division of the units is only a logical function division. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be an indirect coupling or communication connection through some interfaces, devices or units, which can be electrical, mechanical or other forms.

[0043] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the present embodiment.

[0044] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the utility model.

Claims

1. A wireless charging device, characterized in that: include: A housing having a charging side, wherein the charging side is used to place an electronic device; A charging coil is disposed in the housing and is disposed close to the charging side; A heat-conducting film is arranged between the charging coil and the electronic device, a pipeline and an inlet and an outlet communicating with the pipeline are arranged in the heat-conducting film, and the pipeline is filled with a cooling medium; as well as A power device is arranged in the housing and connected to the pipeline through the inlet and the outlet to drive the cooling medium.

2. The wireless charging device according to claim 1, characterized in that: A supporting flow guide is arranged in the pipeline.

3. The wireless charging device according to claim 2, characterized in that: The supporting flow guide members include a plurality of supporting flow guide members, and the plurality of supporting flow guide members are arranged at intervals along the width direction of the pipeline.

4. The wireless charging device according to claim 1, characterized in that: Also includes: The heat dissipation structure is arranged in the housing and close to the heat-conducting film.

5. The wireless charging device according to claim 4, characterized in that: The pipeline includes a plurality of first pipelines that are connected in sequence. The plurality of first pipelines are arranged corresponding to the charging coils and are arranged at intervals along the width direction of the thermal conductive film.

6. The wireless charging device according to claim 5, characterized in that: The pipeline also includes a second pipeline communicated with the first pipeline, the second pipeline is arranged corresponding to the heat dissipation structure, and the second pipeline extends in the width direction of the heat conductive film.

7. The wireless charging device according to claim 1, characterized in that: The inlet and the outlet are connected to the power device respectively, and the inlet and the outlet are arranged on a side of the heat-conducting diaphragm close to the charging coil.

8. The wireless charging device according to claim 1 or 7, characterized in that: The inlet and the outlet are arranged on the same layer as the charging coil.

9. The wireless charging device according to claim 4, characterized in that: The heat dissipation structure comprises: a heat sink, disposed in the housing and thermally connected to the heat-conducting film; and / or A heat dissipation fan is arranged in the housing, and the heat dissipation fan is arranged close to the heat conductive film.

10. The wireless charging device according to claim 4, characterized in that: Also includes: A battery, disposed in the housing; as well as A circuit board is arranged in the housing, and the heat dissipation structure is connected to the circuit board by thermal conduction.

11. The wireless charging device according to claim 4, characterized in that: The housing is formed with a receiving cavity; the housing further comprises: A support member is arranged on a side of the accommodating cavity close to the charging coil, and a charging coil accommodating portion, an avoidance position and a through hole are provided on the support member. The charging coil is arranged on the charging coil accommodating portion, the thermally conductive film and the heat dissipation structure are connected by thermal conduction through the avoidance position, and the inlet and the outlet are connected to the power device through the through hole.

12. The wireless charging device according to claim 1, wherein: The material of the thermally conductive film is a non-electromagnetic interference material; or, the thermally conductive film is made of metal, and an avoidance position is provided on the thermally conductive film corresponding to the charging coil.

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