Wireless charging equipment

Abstract

The present application relates to a wireless charging device, including: an air cooling module, including a first housing and a fan, the first housing is provided with a first air outlet and a second air outlet. And a charging module, including a second housing and a coil module, the second housing can support the device to be charged, and the charging module can be installed on the air cooling module and can be detached. When the charging module is installed on the air cooling module, the fan can guide the external air to flow into the first housing from one of the first air outlet and the second air outlet, and flow out from the other, so that the air at the second air outlet can exchange heat with the device to be charged. When the power of the device to be charged is relatively small, only the charging module can be used. When the power of the device to be charged is relatively large, the air cooling module can be installed on the charging module, and the fan can guide the external air to flow through the first air outlet, the second air outlet and the device to be charged, taking away the heat, which can support the needs of high-power charging and shorten the charging time.

Description

Technical Field

[0001] The present application relates to the field of charging technology, and in particular to wireless charging equipment. Background Art

[0002] Traditional wireless charging devices have low heat dissipation efficiency. When wirelessly charging a device to be charged, the device to be charged easily generates heat and its temperature rises. Summary of the invention

[0003] The embodiment of the present application provides a wireless charging device to solve the technical problem of low heat dissipation efficiency of the above-mentioned wireless charging device.

[0004] A wireless charging device capable of charging a device to be charged, comprising:

[0005] An air cooling module comprises a first housing and a fan located in the first housing, wherein the first housing is provided with a first air outlet and a second air outlet; and

[0006] A charging module, comprising a second housing and a coil module located in the second housing, wherein the second housing is capable of supporting the device to be charged; the charging module is capable of being installed on the air cooling module and can be detached from the air cooling module;

[0007] When the charging module is installed on the air cooling module, the fan can guide external air to flow into the first housing from one of the first air outlet and the second air outlet, and guide air to flow out from the other of the first air outlet and the second air outlet, so that the air at the second air outlet can perform heat exchange with the device to be charged.

[0008] The above-mentioned wireless charging device includes a detachably connected air-cooling module and a charging module. When the power of the device to be charged is relatively low, only the charging module can be used, and the device to be charged can achieve heat dissipation by itself. When the power of the device to be charged is relatively high, more heat is generated, and the air-cooling module can be installed on the charging module. The fan in the air-cooling module can guide the external air to flow through the first air outlet, the second air outlet and the device to be charged, and take away the heat of the device to be charged. The first air outlet and the second air outlet together form a heat dissipation duct. The heat dissipation duct has a simple structure and low wind resistance, so that it can well support the needs of high-power wireless charging and shorten the charging time.

[0009] In one of the embodiments, the charging module is mounted on the air cooling module via a connector.

[0010] In one of the embodiments, when the charging module is installed on the air cooling module, the charging module is electrically connected to the air cooling module.

[0011] In one embodiment, the connector is provided with an electrical connector; the first shell and the second shell are both provided with the connector, and when the charging module is installed in the air cooling module, the charging module and the air cooling module are electrically connected through the electrical connector.

[0012] In one embodiment, the connector has a connection end, a mainboard is disposed inside the connector, one end of the electrical connector is connected to the mainboard, and the other end of the electrical connector protrudes from the connection end.

[0013] In one of the embodiments, the connector includes a magnetic member disposed at the connection end, and the charging module and the air cooling module can be fixed by magnetic attraction through the magnetic member.

[0014] In one embodiment, the first housing and the second housing are respectively provided with corresponding first fixing grooves and second fixing grooves, the connectors are respectively fixed to the first fixing grooves and the second fixing grooves, and the connection ends of the two connectors are arranged opposite to each other.

[0015] In one of the embodiments, a third fixing groove is provided at one end of the second housing facing away from the second fixing groove, and the connector is provided in the third fixing groove.

[0016] In one of the embodiments, in the thickness direction of the wireless charging device, on the side of the second shell that carries the device to be charged, the first shell protrudes from the second shell, the second air vent is opened on the side of the first shell where the second shell is installed, and the second air vent is at least partially exposed from the second shell.

[0017] In one embodiment, the fan is provided with a third air outlet and a fourth air outlet, and air can flow between the first air outlet and the third air outlet; and the fourth air outlet is connected to the second air outlet.

[0018] In one embodiment, the second housing is provided with a fifth air outlet and a sixth air outlet, and the fifth air outlet is connected to the second air outlet;

[0019] The fan can guide external air to flow through the first air outlet, the second air outlet, the fifth air outlet, the coil module and the sixth air outlet to remove heat from the coil module.

[0020] In one embodiment, the charging module includes a bracket located in the second shell, the bracket is fixed to the second shell, and the coil module is arranged on the bracket.

[0021] In one embodiment, the coil module includes a coil and a magnetic isolation sheet, the magnetic isolation sheet is fixed to the bracket, and the coil is fixed to a side of the magnetic isolation sheet away from the bracket.

[0022] In one embodiment, the charging module includes a circuit board and a heat insulation structure, the heat insulation structure is located on the side of the bracket away from the coil module, the heat insulation structure and the second shell form a heat insulation cavity, and the circuit board is located in the heat insulation cavity.

[0023] In one embodiment, the bracket is made of heat-conducting material; and a heat-conducting layer is provided between the circuit board and the second bottom plate.

[0024] In one embodiment, the number of the charging modules is N, N is not less than 2, the N charging modules are arranged in sequence, and the air cooling module is installed at one end of the N charging modules. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0026] Figure 1 A three-dimensional diagram of a wireless charging device provided by an embodiment, wherein a charging module is installed in an air cooling module;

[0027] Figure 2 for Figure 1 A three-dimensional view of the wireless charging device shown, wherein the air cooling module is detached from the charging module;

[0028] Figure 3 for Figure 2 A three-dimensional image of the wireless charging device shown at another angle;

[0029] Figure 4 for Figure 1 A three-dimensional diagram of the wireless charging device shown, wherein the number of charging modules is 2;

[0030] Figure 5 for Figure 1 A cross-sectional view of the wireless charging device shown;

[0031] Figure 6 for Figure 1 An exploded view of the wireless charging device shown;

[0032] Figure 7 for Figure 6A cross-sectional view of the first housing of the wireless charging device shown, wherein the first bottom plate is removed;

[0033] Figure 8 for Figure 6 A cross-sectional view of the second housing of the wireless charging device shown, wherein the second bottom plate is removed;

[0034] Fig. 9 for Figure 6 A perspective view of a connector of the wireless charging device shown;

[0035] Fig.10 for Fig. 9 A three-dimensional view of the connector of the wireless charging device shown at another angle;

[0036] Fig.11 for Fig. 9 A cross-sectional view of the connector in one embodiment;

[0037] Fig.12 for Fig. 9 A cross-sectional view of the connector in another embodiment;

[0038] Fig.13 for Fig. 9 A three-dimensional view of the connector in the mating and fixing state. DETAILED DESCRIPTION

[0039] In order to facilitate the understanding of the present application, the present application will be described more fully below with reference to the relevant drawings. The preferred embodiments of the present application are provided in the drawings. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present application more thorough and comprehensive.

[0040] like Figure 1 and Figure 2 As shown, in one embodiment, a wireless charging device 10 is provided, which can charge a device to be charged. The device to be charged can be a mobile phone, a tablet, a watch or a computer. The wireless charging device 10 includes a cooling module 20 and a charging module 30. The cooling module 20 includes a first housing 100 and a fan 400 disposed in the first housing 100. The first housing 100 is provided with a first air outlet 131 and a second air outlet 141. The charging module 30 is used to support the device to be charged. The second air outlet 141 is located on the side of the cooling module 20 facing the charging module 30, and the second air outlet 141 is exposed to the charging module 30. The fan 400 can guide the external air to flow into the first housing 100 from one of the first air outlet 131 and the second air outlet 141, and guide the air to flow out from the other of the first air outlet 131 and the second air outlet 141, so that the air at the second air outlet 141 is heat exchanged with the device to be charged.

[0041] like Figures 1 to 3 As shown, in one embodiment, the air cooling module 20 can be installed on the charging module 30 and can be detached from each other. When the air cooling module 20 and the charging module 30 are in the installed state, the two can be electrically connected. When the air cooling module 20 and the charging module 30 are in the separated state, the charging module 30 can work alone. When the power of the device to be charged is relatively small, the heat generated by the device to be charged during the charging process can be dissipated by itself, and the air cooling module 20 is not required, and the air cooling module 20 can be detached from the charging module 30. When the power of the device to be charged is relatively large, the device to be charged generates more heat during the charging process, so that the temperature of the device to be charged increases, and the air cooling module 20 can be installed on the charging module 30, and the two can be mechanically and electrically connected, and the air cooling module 20 can guide the external air flow to exchange heat with the device to be charged and take away the heat of the device to be charged.

[0042] like Figure 4 As shown, in one embodiment, there can be one charging module 30 or N charging modules, where N is not less than 2. The N charging modules 30 can be connected in sequence, and the adjacent charging modules 30 are electrically connected. The air cooling module 20 is installed at one end of the N charging modules 30, or the number of the air cooling modules 20 is 2, and the two air cooling modules 20 are installed at both ends of the N charging modules 30 respectively. The N charging modules 30 can charge the devices to be charged at the same time to improve the charging efficiency. The two air cooling modules 20 at both ends can be electrically connected to the adjacent charging modules 30 and can work at the same time to dissipate heat for the devices to be charged.

[0043] like Figure 5 and Figure 6 As shown, in one embodiment, the first housing 100 is a rectangular parallelepiped or cube structure, and the fan 400 is located inside the first housing 100. The first housing 100 includes a first top plate 110 and a first bottom plate 120 disposed opposite to each other, and a first side wall 130 and a second side wall 140 disposed opposite to each other. The second side wall 140 is located on a side of the first housing 100 close to the charging module 30, and the second air outlet 141 is opened on the second side wall 140. When the air cooling module 20 is installed on the charging module 30, the second air outlet 141 is at least partially exposed, so that air can flow to the device to be charged located above the charging module 30. The first air outlet 131 is opened on the first side wall 130, and the number of the first air outlet 131 is multiple, evenly distributed on the first side wall 130. In another embodiment, the first air outlet 131 can also be located at the first top plate 110 or the first bottom plate 120, which is not limited here.

[0044] In another embodiment, the first housing 100 may also be a cylinder or other polygonal structures, which are not specifically limited herein.

[0045] like Figure 5 and Figure 6 As shown, in one embodiment, the fan 400 is a centrifugal fan, and a third air outlet 410 and a fourth air outlet 420 are provided. The fan 400 is fixed to the first top plate 110, and there is a gap between the third air outlet 410 and the first bottom plate 120, so that air can flow between the first air outlet 131 and the third air outlet 410. One side of the fan 400 is a constricted structure, and is formed as a fourth air outlet 420, and the end of the fan 400 where the fourth air outlet 420 is provided abuts against the second side wall 140, so that the fourth air outlet 420 is connected to the second air outlet 141. When the fan 400 is working, it can drive the external air to enter the first housing 100 from the first air outlet 131, flow through the third air outlet 410 and the fourth air outlet 420 in sequence, and flow out of the first housing 100 from the second air outlet 141 and flow to the device to be charged, taking away the heat of the device to be charged. The first air outlet 131, the third air outlet 410, the fourth air outlet 420 and the second air outlet 141 form a heat dissipation duct.

[0046] In another embodiment, when the fan 400 is working, it can drive external air into the first housing 100 from the second air outlet 141, flow through the fourth air outlet 420 and the third air outlet 410 in sequence, and flow out of the first housing 100 from the first air outlet 131. The air can flow through the device to be charged at the second air outlet 141 and take away the heat of the device to be charged.

[0047] like Figure 5 and Figure 6 As shown, in one embodiment, the second housing 200 is a rectangular parallelepiped or cube structure. In another embodiment, the second housing 200 may also be a cylindrical or other polyhedral structure, which is not limited here. The second housing 200 includes a second top plate 210 and a second bottom plate 220 disposed back to back, and a first side plate 230 and a second side plate 240 disposed back to back. The first side plate 230 is connected to one end of the first top plate 110 and the second top plate 210, and the second side plate 240 is connected to the other end of the first top plate 110 and the second top plate 210. The first side plate 230 is located at one end of the second housing 200 facing the air cooling module 20, and the second side plate 240 is located at one end of the second housing 200 facing away from the air cooling module 20. When the charging module 30 is installed in the air cooling module 20, the second side wall 140 is connected to the first side plate 230. The second top plate 210 is provided with a support element 211 for supporting the device to be charged, so that there is a gap between the device to be charged and the second top plate 210, so that the air flowing through the second air outlet 141 can flow through the gap between the device to be charged and the second top plate 210 and take away the heat of the device to be charged. The support element 211 can be as follows: Figure 6 The two silicone strips shown may also be other structures, as long as the device to be charged is supported and there is a gap between the device and the second top plate 210 .

[0048] In the thickness direction of the wireless charging device 10, on one side of the second top plate 210, the first housing 100 protrudes from the second housing 200, that is, there is a height difference between the first top plate 110 and the second top plate 210, and the first top plate 110 is higher than the second top plate 210. The second air vent 141 is located at a position of the second side wall 140 exposed to the second housing 200, so that the airflow flowing through the second air vent 141 can flow to the device to be charged.

[0049] like Figure 5 and Figure 6 As shown, in one embodiment, the charging module 30 includes a coil module 500, a bracket 600, a heat insulation structure 700 and a circuit board 800 in the second housing 200. The coil module 500, the bracket 600, the heat insulation structure 700 and the circuit board 800 are sequentially arranged in the second housing 200. The circuit board 800 can control the operation of the coil module 500, so that the coil module 500 can transmit signals with the coil 510 inside the device to be charged, so that the coil module 500 can charge the device to be charged.

[0050] like Figure 5 and Figure 6 As shown, in one embodiment, the coil module 500 includes a coil 510 and a magnetic isolation sheet 520, the magnetic isolation sheet 520 is fixed to the bracket 600, and the coil 510 is located on the side of the magnetic isolation sheet 520 facing away from the bracket 600. The bracket 600 is a U-shaped structure, fixed on the second bottom plate 220. It can be understood that the bracket 600 is not limited to a U-shaped structure, and can be a square open box-shaped structure, an L-shaped structure, or other shapes, which are not specifically limited here. The bracket 600 is made of heat-conducting materials, such as metal or hardware materials with good thermal conductivity. The bracket 600 can transfer the heat generated by the coil module 500 to the second bottom plate 220 or the first side plate 230 and the second side plate 240. The material of the second bottom plate 220 can be metal, hardware or plastic material with good thermal conductivity, which facilitates the bracket 600 to transfer the heat of the coil module 500 to the second bottom plate 220, and also facilitates the heat of the second bottom plate 220 to be transferred to the external environment.

[0051] In another embodiment, the bracket 600 is a flat plate structure, fixed to the first side plate 230 and the second side plate 240 , so that the bracket 600 can transfer the heat of the coil module 500 to the first side plate 230 and the second side plate 240 .

[0052] like Figure 5 and Figure 6As shown, in one embodiment, the heat insulation structure 700 is an open box-like structure, such as an open square box-like structure, the opening of the heat insulation structure 700 faces the second bottom plate 220 and is fixed to the second bottom plate 220, and the space enclosed by the heat insulation structure 700 and the second bottom plate 220 is a heat insulation cavity. The heat insulation structure 700 is located on the side of the bracket 600 facing the second bottom plate 220. The circuit board 800 is fixed in the heat insulation cavity, and specifically, it can be arranged on the panel of the heat insulation structure 700 facing the second bottom plate 220. The heat insulation structure 700 is made of heat insulation material to prevent heat transfer between the coil module 500 and the circuit board 800. A heat conduction layer with a high coefficient is provided in the heat insulation cavity, and the heat conduction layer is located between the circuit board 800 and the second bottom plate 220, and is a mud-like structure. The heat conduction layer is made of a heat conduction material, such as silicone grease, so that the heat of the circuit board 800 is transferred to the second bottom plate 220 through the heat conduction layer. It is understandable that the side of the circuit board 800 facing the second bottom plate 220 may be a flat surface or a curved surface. If the circuit board 800 is attached to the second bottom plate 220, the two may not be completely attached, resulting in low heat transfer efficiency between the two. The use of mud-like thermal conductive material to fill and form a thermal conductive layer increases the contact area and has a high thermal conductivity, so that the heat transfer efficiency between the circuit board 800 and the second bottom plate 220 is high.

[0053] In one embodiment, the second housing 200 is provided with a fifth vent and a sixth vent. Specifically, the fifth vent is provided on the first side plate 230 and is connected to the second vent 141. The sixth vent may be located on the second side plate 240, or on the second top plate 210 or the second bottom plate 220. The fan 400 can guide the external air to flow through the first vent 131, the third vent 410, the fourth vent 420, and the second vent 141, and the air is split at the second vent 141, a part of the air flows from the second vent 141 to the outside of the second housing 200, and flows to the gap between the device to be charged and the charging module 30, and takes away the heat of the device to be charged; the other part flows from the second vent 141 to the fifth vent, flows through the surface of the coil module 500, and then flows out of the second housing 200 from the sixth vent, takes away the heat of the coil module 500, so that the charging module 30 can be cooled.

[0054] like Figure 2 and Figure 3 As shown, in one embodiment, the second side wall 140 and the first side plate 230 are both provided with a connector 300, and the connector 300 can mechanically and electrically connect the air cooling module 20 and the charging module 30. In another embodiment, the second side plate 240 is also provided with a connector 300, so that the charging module 30 can be installed with another charging module 30, and so on. Figure 4As shown, N charging modules 30 can be arranged in sequence and mechanically and electrically connected, and N is not less than 2. It can be understood that when the number of charging modules 30 is large, high-power devices to be charged can be charged with high charging efficiency. At the same time, the air cooling module 20 can charge the devices to be charged, so that the devices to be charged can dissipate heat faster.

[0055] In another embodiment, the first side plate 230 and the second side plate 240 of the charging module 30 are respectively installed with an air cooling module 20, that is, the charging module 30 is located between the two air cooling modules 20. The second air vents 141 of the two air cooling modules 20 are arranged opposite to each other, that is, the second air vents 141 of the two air cooling modules 20 are both facing the charging module 30. The two air cooling modules 20 can improve the heat dissipation efficiency of the wireless charging device 10, so that the device to be charged can quickly dissipate heat.

[0056] like Figure 7 and Figure 8 As shown, in one embodiment, a first fixing groove 142 is provided on the second side wall 140, and a second fixing groove 231 is provided on the first side plate 230. The positions of the first fixing groove 142 and the second fixing groove 231 correspond to each other, that is, when the air cooling module 20 and the charging module 30 are installed, the first fixing groove 142 and the second fixing groove 231 are directly opposite. A connector 300 is fixed in the first fixing groove 142, and another connector 300 is fixed in the second fixing groove 231, and the connection ends of the two connectors 300 are arranged oppositely, so that the air cooling module 20 and the charging module 30 can be mechanically and electrically connected. In another embodiment, a third fixing groove 241 is provided on the second side panel 240, and the position of the third fixing groove 241 corresponds to the position of the second fixing groove 231. A connector 300 is also provided in the third fixing groove 241, and the connecting end of the connector 300 faces outside the second shell 200, so that the charging module 30 can install another charging module 30 on the second side panel 240, so that the wireless charging module 30 has N charging modules 30, and N is not less than 2.

[0057] like Fig. 9 As shown, in one embodiment, the connector 300 has a connection end, and the connection end can make two connectors 300 mechanically and electrically connected. Figure 2 and Figure 3 As shown, the connection end of the connector 300 fixed to the second side wall 140 faces the first side plate 230, and the connection end of the connector 300 fixed to the first side plate 230 faces the second side wall 140. When the second side wall 140 and the first side plate 230 are close to or attached to each other, the connection ends of the two connectors 300 are aligned, so that the air cooling module 20 and the charging module 30 are mechanically fixed and the two are electrically connected.

[0058] like Figures 9 to 11As shown, in one embodiment, the connector 300 includes a housing 310 and a cover plate 320, the cover plate 320 covers the housing 310, and the housing 310 and the cover plate 320 together form the external structure of the connector 300. An electrical connector 330 and a main board 340 are disposed in the housing 310, and the electrical connector 330 and the main board 340 are connected. One end of the electrical connector 330 away from the main board 340 protrudes from the connection end. Fig.13 As shown, when two connectors 300 are mated, the two connection ends are mated, and the electrical connectors 330 of different connectors 300 can be butted, so that the two connectors 300 can be electrically connected. The mainboard 340 can integrate the electrical signals of the electrical connector 330 and be electrically connected to the fan 400, the coil module 500 or the circuit board 800, so that the circuit board 800 can control the operation of the fan 400 and the coil module 500.

[0059] In another embodiment, the electrical connector 330 is located at another position outside the connector 300, and when the air cooling module 20 and the charging module 30 are in the installed state, the electrical connector 330 enables the air cooling module 20 and the charging module 30 to be electrically connected. For example, the electrical connector 330 includes a male head and a female socket, one of which is located on the second side wall 140, and the other is located on the first side plate 230. When the air cooling module 20 and the charging module 30 are in the installed state, the male head and the female socket match, and the air cooling module 20 and the charging module 30 are electrically connected. In other embodiments, the electrical connector 330 may also be other electronic components that can be electrically connected, which is not specifically limited here. For example, in one embodiment, the electrical connector 330 is a pogo pin, and the number of the electrical connector 330 is multiple, such as 3.

[0060] In one embodiment, the air cooling module 20 and the charging module 30 can also be powered separately, and the air cooling module 20 and the charging module 30 are connected to each other through a wireless communication module, so that the circuit board 800 can control the operation of the fan 400 and the coil module 500. The air cooling module 20 and the charging module 30 are fixed by magnets or other mechanical structures. This embodiment is also within the protection scope of the present application.

[0061] like Fig. 9 and Fig.12 As shown, in one embodiment, the connector 300 includes a magnetic member 350 protruding from the connection end, and the magnetic members 350 of different connectors 300 have a magnetic force of mutual attraction, so that different connectors 300 can be connected as shown in FIG. Fig.13The magnetic member 350 is fixed by magnetic attraction in the manner shown. It is understandable that the magnetic member 350 can be fixed on the surface of the connection end, or can be fixed inside the connector 300, and at least part of the structure protrudes from the connection end. In one embodiment, the number of magnetic members 350 of the connector 300 is two, which are respectively located on both sides of the electrical connector 330. In another embodiment, the number of magnetic members 350 can be one or more, which is not specifically limited here.

[0062] In another embodiment, the connection ends are made of magnetic material, and the connection ends of different connectors 300 have a magnetic force that attracts each other, so that the connection ends of different connectors 300 can be magnetically fixed.

[0063] In another embodiment, the connector 300 may not be provided with the magnetic member 350, and the first housing 100 and the second housing 200 cooperate with each other through the structure between the second side wall 140 and the first side plate 230, so that the air cooling module 20 and the charging module 30 are fixed. For example, one of the second side wall 140 and the first side plate 230 is provided with a boss, and the other is provided with a groove, and the boss and the groove are interference fit, so that the air cooling module 20 and the charging module 30 can be reliably installed. And the boss and the groove are elastically matched, that is, the boss has a certain elasticity, can be inserted into the groove and can be detached from the groove, and after detachment, the boss can return to its original state, so that the boss can form an interference fit with the groove again.

[0064] The wireless charging device 10 of the present application includes a detachably connected air cooling module 20 and a charging module 30. When the power of the device to be charged is relatively low, only the charging module 30 can be used, and the device to be charged can achieve heat dissipation by itself. When the power of the device to be charged is relatively high, more heat is generated. The air cooling module 20 can be installed on the charging module 30 so that the two can be electrically connected. The fan 400 in the air cooling module 20 can guide the external air to flow through the first air outlet 131, the second air outlet 141 and the device to be charged, taking away the heat of the device to be charged. The first air outlet 131, the third air outlet 410 of the fan 400, the fourth air outlet 420, and the second air outlet 141 together form a heat dissipation duct. The heat dissipation duct has a simple structure and low wind resistance, so that it can well support the needs of high-power wireless charging and shorten the charging time.

[0065] Connectors 300 are provided at both ends of the charging module 30, so that the charging module 30 can be mechanically and electrically connected to another charging module 30, so that N charging modules 30 can be connected end to end, N is not less than 2, and the N charging modules 30 can work at the same time, and can provide a larger charging power, so as to charge a higher-power device to be charged. At the same time, the air cooling module 20 installed at the end of the N charging modules 30 can dissipate heat for the device to be charged.

[0066] The heat of the coil module 500 can be transferred to the second housing 200 through the bracket 600, and the heat of the circuit board 800 can be transferred to the second housing 200 through the heat conductive layer, so that the wireless charging device 10 itself has a better heat dissipation effect and reduces the impact on the heat dissipation performance of the device to be charged.

[0067] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0068] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be construed as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent application shall be subject to the attached claims.

Claims

1. A wireless charging device capable of charging a device to be charged, characterized in that: include: The air cooling module comprises a first housing and a fan located in the first housing, wherein the first housing is provided with a first air outlet and a second air outlet; and A charging module, comprising a second housing and a coil module located in the second housing, wherein the second housing is capable of supporting the device to be charged; the charging module is capable of being installed on the air cooling module and can be detached from the air cooling module; When the charging module is installed on the air cooling module, the fan can guide external air to flow into the first housing from one of the first air outlet and the second air outlet, and guide air to flow out from the other of the first air outlet and the second air outlet, so that the air at the second air outlet performs heat exchange with the device to be charged; The first shell and the second shell are both provided with a connector, the connector is provided with an electrical connector and has a connecting end, a mainboard is provided in the connector, one end of the electrical connector is connected to the mainboard, and the other end of the electrical connector protrudes from the connecting end, when the charging module is installed in the air cooling module, the charging module and the air cooling module are electrically connected through the electrical connector, the connector includes a containing shell and a cover plate, the electrical connector and the mainboard are arranged in the containing shell, the cover plate covers the containing shell, and the containing shell and the cover plate together form the external structure of the connector.

2. The wireless charging device according to claim 1, characterized in that: The first shell includes a first top plate and a first bottom plate arranged back to back, and a first side wall and a second side wall arranged back to back, the second side wall is located on a side of the first shell close to the charging module, the second air vent is opened on the second side wall, and when the air cooling module is installed on the charging module, the second air vent is at least partially exposed.

3. The wireless charging device according to claim 2, characterized in that: The first air outlet is opened on the first side wall.

4. The wireless charging device according to claim 3, characterized in that: There are multiple first air outlets, which are evenly distributed on the first side wall.

5. The wireless charging device according to claim 2, characterized in that: The first air outlet is located at the first top plate or the first bottom plate.

6. The wireless charging device according to claim 5, characterized in that: The connector includes a magnetic member arranged at the connection end, and the charging module and the air cooling module can be fixed by magnetic attraction through the magnetic member.

7. The wireless charging device according to claim 5, characterized in that: The first housing and the second housing are respectively provided with corresponding first fixing grooves and second fixing grooves, the connectors are respectively fixed to the first fixing grooves and the second fixing grooves, and the connection ends of the two connectors are arranged opposite to each other.

8. The wireless charging device according to claim 7, characterized in that: A third fixing groove is provided at one end of the second housing away from the second fixing groove, and the connector is provided in the third fixing groove.

9. The wireless charging device according to any one of claims 1 to 8, characterized in that: In the thickness direction of the wireless charging device, on the side of the second shell that supports the device to be charged, the first shell protrudes from the second shell, the second air vent is opened on the side of the first shell where the second shell is installed, and the second air vent is at least partially exposed from the second shell.

10. The wireless charging device according to claim 9, characterized in that: The fan is provided with a third air outlet and a fourth air outlet, and air can flow between the first air outlet and the third air outlet; the fourth air outlet is connected to the second air outlet.

11. The wireless charging device according to claim 9, characterized in that: The second housing is provided with a fifth air outlet and a sixth air outlet, and the fifth air outlet is connected to the second air outlet; The fan can guide external air to flow through the first air outlet, the second air outlet, the fifth air outlet, the coil module and the sixth air outlet to remove heat from the coil module.

12. The wireless charging device according to claim 9, characterized in that: The charging module includes a bracket located in the second shell, the bracket is fixed to the second shell, and the coil module is arranged on the bracket.

13. The wireless charging device according to claim 12, characterized in that: The coil module comprises a coil and a magnetic isolation sheet, wherein the magnetic isolation sheet is fixed to the bracket, and the coil is fixed to a side of the magnetic isolation sheet away from the bracket.

14. The wireless charging device according to claim 12, characterized in that: The charging module includes a circuit board and a heat insulation structure. The heat insulation structure is located on a side of the bracket away from the coil module. The heat insulation structure and the second shell form a heat insulation cavity. The circuit board is located in the heat insulation cavity.

15. The wireless charging device according to claim 14, characterized in that: The bracket is made of heat-conducting material; the second housing comprises a second top plate and a second bottom plate which are arranged back to back, and a heat-conducting layer is arranged between the circuit board and the second bottom plate.

16. The wireless charging device according to any one of claims 1 to 7, characterized in that: The number of the charging modules is N, where N is not less than 2, and the N charging modules are arranged in sequence, and the air cooling module is installed at one end of the N charging modules.

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