Wireless charging equipment

Abstract

The present application relates to a wireless charging device, comprising: a first body, comprising a first housing and a fan, the first housing being provided with a first air outlet and a second air outlet. A second body, comprising a second housing and a coil module. And an elastic member, connected to the first housing and the second housing, so that the second body can be located at a first position and a second position. In the first position, the second body blocks the second air outlet; in the second position, the second air outlet is exposed, and the fan can guide air to flow from one of the first air outlet and the second air outlet into the first housing, and out of the other, so that the air at the second air outlet can exchange heat with the device to be charged. In the first position, the second air outlet is blocked, and dust and foreign matter can be isolated. In the second position, the second air outlet is exposed to form a heat dissipation duct, and air flows through the first air outlet and the second air outlet, exchanges heat with the device to be charged, and takes away the heat of the device to be charged.

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 wireless charging device generates heat, causing the temperature of the device to be charged to rise. Summary of the Invention

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

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

[0005] The first body includes 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;

[0006] A second main body includes a second housing and a coil module located in the second housing; and

[0007] an elastic member connected to the first housing and the second housing to enable the second body to be located at a first position and a second position;

[0008] When in the first position, the second body blocks the second air outlet; when in the second position, the second air outlet is exposed, and the fan can guide external air from one of the first air outlet and the second air outlet to flow into the first housing, and guide air out of the other of the first air outlet and the second air outlet, so that the air at the second air outlet can exchange heat with the device to be charged.

[0009] In the wireless charging device described above, the elastic member is connected to the first and second bodies, allowing the second body to move relative to the first body, thereby allowing the second air vent to be blocked or exposed by the second body. In the first position, the second air vent is blocked, effectively isolating dust and foreign matter. In the second position, the second air vent is exposed, forming a heat dissipation duct. External air flows through the first and second air vents, exchanging heat with the device to be charged, removing heat from the device.

[0010] In one embodiment, the first housing has a recessed area, and the second body is movable in the recessed area to switch between the first position and the second position.

[0011] In one embodiment, one end of the elastic member abuts against the recessed area, and the other end abuts against the second shell;

[0012] When the device to be charged is placed in the second housing so that the elastic member is compressed, the second body can be located in the second position; when the device to be charged is separated from the second body, the elastic member can drive the second body to return to the first position.

[0013] In one embodiment, the second body moves along the thickness direction of the first body, so that the second body switches between the first position and the second position.

[0014] In one embodiment, a stepped surface is present on the periphery of the recessed area, and the second outer shell is sleeved on the periphery of the recessed area;

[0015] When in the first position, a gap exists between the second housing and the step surface.

[0016] In one embodiment, one end of the second housing away from the second air outlet is rotatably connected to the first housing, so that the second housing can be rotated to a first position and a second position.

[0017] In one embodiment, the first housing includes a containing shell, the containing shell forms a containing cavity, the fan is located in the containing cavity, and the first air outlet and the second air outlet are respectively opened in the containing shell and communicated with the containing cavity.

[0018] 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.

[0019] In one embodiment, the first shell includes a heat-insulating shell arranged side by side with the containing shell, and the height of the heat-insulating shell is smaller than the height of the containing shell, so that the first shell forms a recessed area.

[0020] In one embodiment, a heat-insulating cavity is provided in the heat-insulating shell; the wireless charging device includes a circuit board, and the circuit board is located in the heat-insulating cavity.

[0021] In one embodiment, a heat conducting layer is provided between the circuit board and the first housing.

[0022] In one embodiment, the coil module includes a coil and a magnetic isolation plate, the magnetic isolation plate is fixed to the second housing, and the magnetic isolation plate supports the coil.

[0023] In one embodiment, the second housing is provided with a fifth air outlet and a sixth air outlet;

[0024] When in the first position, the second air outlet is connected to the fifth air outlet, and 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 take away the heat of the coil module.

[0025] In one embodiment, in the second position, the second air vent is at least partially exposed, and the second air vent is at least partially connected to the fifth air vent. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. 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 any creative work.

[0027] Figure 1 A perspective view of a wireless charging device provided in an embodiment, wherein the second body is located in a first position;

[0028] Figure 2 for Figure 1 A perspective view of the wireless charging device in one embodiment is shown, wherein the second body is located in a second position;

[0029] Figure 3 for Figure 1 An exploded view of the wireless charging device shown;

[0030] Figure 4 for Figure 1 a cross-sectional perspective view of the wireless charging device shown;

[0031] Figure 5a for Figure 1 A cross-sectional view of a wireless charging device in one embodiment is shown;

[0032] Figure 5b for Figure 1 A cross-sectional view of another embodiment of the wireless charging device shown;

[0033] Figure 6 for Figure 2 a cross-sectional perspective view of the wireless charging device shown;

[0034] Figure 7a for Figure 2 A cross-sectional view of the wireless charging device shown;

[0035] Figure 7b for Figure 2 A cross-sectional view of another embodiment of the wireless charging device shown;

[0036] Figure 8 for Figure 1 A perspective view of the wireless charging device in another embodiment, wherein the second body is located in a second position;

[0037] Figure 9 for Figure 8 An exploded view of the wireless charging device shown;

[0038] Figure 10 for Figure 8 a perspective view of the second housing of the illustrated wireless charging device with the bottom wall removed;

[0039] Figure 11 for Figure 8 a cross-sectional perspective view of the wireless charging device shown, wherein the second body is in a first position;

[0040] Figure 12 for Figure 8 A cross-sectional view of the wireless charging device shown, wherein the second body is in a first position;

[0041] Figure 13 for Figure 8 a cross-sectional perspective view of the wireless charging device shown, wherein the second body is in a second position;

[0042] Figure 14 for Figure 8 A cross-sectional view of the wireless charging device is shown, wherein the second body is located in the second position. DETAILED DESCRIPTION

[0043] To facilitate understanding of the present application, the present application will be described more fully below with reference to the accompanying drawings. The accompanying drawings illustrate preferred embodiments of the present application. However, the present application may be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and comprehensive understanding of the disclosure of the present application.

[0044] like Figure 1 and Figure 2 As shown in FIG. 1 , 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, a headset, or a computer. The wireless charging device 10 includes a first body 20, a second body 30, and an elastic member 40 (shown in FIG. 1 ) disposed between the first body 20 and the second body 30. Figure 3 The first body 20 includes a first housing 100 and a fan 400 (shown in FIG. Figure 3). The first housing 100 is provided with a first air outlet 131 and a second air outlet 141, and the first housing 100 is provided with a recessed area 170. The second body 30 is disposed in the recessed area 170, and one end of the elastic member 40 abuts the recessed area 170 of the first body 20, and the other end abuts the second body 30. The elastic member 40 is elastic, so that the second body 30 can move relative to the first body 20 and has a first position and a second position. In the first position, the second body 30 blocks the second air outlet 141, so that external air cannot flow through the second air outlet 141. In the second position, at least part of the structure of the second body 30 moves downward a certain distance, so that the second air outlet 141 is exposed. The fan 400 can guide 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 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 exchanges heat with the device to be charged, thereby removing heat from the device to be charged.

[0045] When the device to be charged does not need to be charged, the wireless charging device 10 does not bear the weight of the device to be charged, that is, the second body 30 does not bear the weight of the device to be charged, and the elastic member 40 only supports the second body 30, with a small amount of compression. The second body 30 is in the first position to block the second air outlet 141. When the device to be charged needs to be charged, the device to be charged is placed on the second body 30. The elastic member 40 is further compressed by the gravity of the device to be charged, causing the second body 30 to move downward and be located in the second position, exposing the second air outlet 141. The fan 400 can guide external air to flow through the first air outlet 131, the second air outlet 141 and the device to be charged, thereby removing heat from the device to be charged. The first air outlet 131 and the second air outlet 141 form a heat dissipation duct with low wind resistance and high heat dissipation efficiency, thereby quickly dissipating heat and shortening the heat dissipation time.

[0046] like Figures 1 to 3As shown, the wireless charging device 10 has two perpendicular X-, Y-, and Z-directions. The length direction of the wireless charging device 10 is the same as the Y-direction, the width direction is the same as the X-direction, and the thickness direction is the same as the Z-direction. The second body 30 includes a second housing 200 and a coil module 300 located within the second housing 200. The coil module 300 can transmit signals with the coil within the device to be charged, allowing the wireless charging device 10 to charge the device to be charged. The second body 30 can rise or fall in the recessed area 170 along the thickness direction of the first body 20, i.e., the Z-direction, so that the second body 30 is located in a first position and a second position. In the first position, the side of the second housing 200 is in contact with the side of the recessed area 170, and the second housing 200 is roughly flush with the first housing 100 on the side where the device to be charged is located, so that the second air vent 141 is blocked by the second housing 200 and air cannot flow through the second air vent 141. In the second position, the second housing 200 is lowered by a certain distance, so that the second air vents 141 are exposed, and the second air vents 141 can circulate air.

[0047] like Figure 3 and Figure 4 As shown, in one embodiment, the first housing 100 includes a first top panel 110, a second top panel 160, a bottom panel 120, a first side panel 130, a second side panel 140, and a third side panel 150. The first top panel 110 and the second top panel 160 are substantially parallel and arranged side by side, with a height difference between the first top panel 110 and the second top panel 160. The bottom panel 120 and the first top panel 110 are arranged opposite each other, and the area of ​​the bottom panel 120 is substantially equal to the sum of the areas of the first top panel 110 and the second top panel 160. The first side panel 130, the second side panel 140, and the third side panel 150 are substantially parallel. The first side panel 130 is connected to one end of the first top panel 110 and the bottom panel 120, and the second side panel 140 is connected to the other end of the first top panel 110 and the bottom panel 120. The first top panel 110 and the second top panel 160 are respectively located on either side of the second side panel 140. The third side plate 150 is connected to the second top plate 160 and an end portion of the bottom plate 120 away from the first side plate 130 .

[0048] The first top plate 110, bottom plate 120, first side plate 130, second side plate 140, and two side plates connected to the ends of the first side plate 130 and the second side plate 140 together form a housing 103. The housing 103 forms a housing cavity 101. The housing cavity 101 is generally a closed square structure. In other embodiments, the housing cavity 101 can also be cylindrical or have other shapes. The second top plate 160, bottom plate 120, second side plate 140, third side plate 150, and two side plates connected to the ends of the second side plate 140 and the third side plate 150 together form an insulating housing 104. The insulating housing 104 encloses an insulating cavity 102, which is a closed square structure. The insulating cavity 102 and the accommodating cavity 101 are arranged side by side in the Y direction, and the depth of the insulating cavity 102 is less than the depth of the accommodating cavity 101. That is, in the Z direction, the height of the insulating shell 104 is less than the height of the accommodating shell 103. In other words, the distance between the second top plate 160 and the bottom plate 120 is less than the distance between the first top plate 110 and the bottom plate 120. The portion of the second side plate 140 exposed in the insulating cavity 102 and the second top plate 160 together form a recessed area 170.

[0049] In one embodiment, the first top plate 110 , the first side plate 130 , the second side plate 140 , the second top plate 160 , and the third side plate 150 are an integrally formed structure.

[0050] like Figure 3 and Figure 4 As shown, in one embodiment, the first air vent 131 is opened on the first side plate 130, and the second air vent 141 is opened on the portion of the second side plate 140 located outside the heat insulation cavity 102. It is understandable that the first air vent 131 can also be opened on the bottom plate 120 or the first top plate 110, and this is not limited here. The fan 400 is located in the accommodating cavity 101 and is provided with a third air vent 410 and a fourth air vent 420. The third air vent 410 faces the bottom plate 120, and a gap is formed between the fan 400 and the bottom plate 120, allowing air to flow between the first air vent 131 and the third air vent 410. The side of the fan 400 facing the second side plate 140 is a constricted structure, forming the fourth air vent 420. The end of the fan 400 where the fourth air vent 420 is provided abuts the second side plate 140, so that the fourth air vent 420 is connected to the second air vent 141. When the device to be charged is placed on the second body 30, the second body 30 descends to the second position along the thickness direction of the wireless charging device 10, i.e., the Z direction. The fan 400 guides air outside the first housing 100 into the accommodating cavity 101 through the first air vent 131, then flows through the third and fourth air vents 410, 420, and out of the accommodating cavity 101 through the second air vent 141 toward the device to be charged on the second body 30, thereby removing heat from the device to be charged. The first air vent 131, the third air vent 410, the fourth air vent 420, and the second air vent 141 form a heat dissipation duct.

[0051] In another embodiment, when the device to be charged is placed on the second body 30, the second body 30 is lowered to the second position along the thickness direction of the wireless charging device 10, i.e., the Z direction. The fan 400 can guide air outside the first housing 100 into the accommodating cavity 101 through the second air vent 141, then flow through the fourth air vent 420 and the third air vent 410, and out of the accommodating cavity 101 through the first air vent 131. During this flow, the air at the second air vent 141 can flow through the device to be charged on the second body 30, thereby removing heat from the device to be charged.

[0052] In one embodiment, the fan 400 is a centrifugal fan.

[0053] In one embodiment, a support element, such as a silicone strip, may be provided on the second body 30 to support the device to be charged, thereby creating a gap between the device to be charged and the second body 30. Air at the second air vent 141 can flow through the gap between the device to be charged and the second body 30 to remove heat from the device to be charged. It is understood that the coil module 300 can transfer heat to the second housing 200, and the air at the second air vent 141 can also remove heat from the second housing 200 when flowing through the gap between the device to be charged and the second body 30.

[0054] like Figure 3 and Figure 4 As shown, in one embodiment, the second housing 200 includes a top wall 210 and a bottom wall 220 disposed opposite to each other, as well as a first side wall 230 and a second side wall 240 disposed opposite to each other. The first side wall 230 is connected to one end of the top wall 210 and the bottom wall 220, and the second side wall 240 is connected to the other end of the top wall 210 and the bottom wall 220. The second housing 200 also includes two other side walls disposed opposite to each other. The top wall 210, the bottom wall 220, the first side wall 230, the second side wall 240, and the other two side walls together enclose an installation space 201. The coil module 300 is located in the installation space 201. The coil module 300 includes a coil 310 and a magnetic isolation plate 320. The magnetic isolation plate 320 is fixed to the bottom wall 220, and the coil 310 is fixed to the side of the magnetic isolation plate 320 facing away from the bottom wall 220. One end of the elastic member 40 abuts against the bottom wall 220 , and the other end abuts against the second top plate 160 , so that the second housing 200 can move in the recessed area 170 .

[0055] In one embodiment, the bottom wall 220 is made of a heat-conductive material. The heat generated by the coil module 300 during operation can be transferred to the bottom wall 220, and then transferred to the first side wall 230, the second side wall 240, the other two side walls and the top wall 210 through the bottom wall 220. Part of the heat of the second shell 200 is dissipated by the second shell 200 itself, and the other part of the heat is taken away by the air flow at the second air outlet 141.

[0056] like Figure 4 and Figure 6 As shown, in one embodiment, the third side panel 150 and the two side panels adjacent to the third side panel 150 and surrounding the heat insulation cavity 102 form the periphery of the recessed area 170. The third side panel 150 and the two side panels adjacent to the third side panel 150 and surrounding the heat insulation cavity 102 are stepped structures with step surfaces 151, that is, there are step surfaces on the periphery of the recessed area 170. The size of the second side wall 240 and the two side walls adjacent to the second side wall 240 and surrounding the installation space 201 in the Z direction is greater than the height of the installation space 201. Figure 4 and Figure 5a As shown, in the first position, at least part of the structure of the second side wall 240 is in contact with the third side plate 150, and there is a gap between the end of the second side wall 240 and the step surface 151, so as to avoid interference between the second side wall 240 and the step surface 151 when the second body 30 switches from the first position to the second position. In addition, when the second body switches between the first position and the second position, the second side wall 240 is always in contact with the third side plate 150, and the two side walls adjacent to the second side wall 240 are also always in contact with the two side plates adjacent to the third side plate 150, that is, the second shell 200 is sleeved on the outer periphery of the recessed area 170, so that the lifting and lowering of the second body 30 is not skewed. At the same time, the second side wall 240 and the two side walls adjacent to the second side wall 240 can cover the elastic member 40 from the side, so that the elastic member 40 will not be exposed, which is conducive to beautifying the appearance of the wireless charging device 10. As shown Figure 6 and Figure 7a As shown, in the second position, the end of the second side wall 240 is in contact with the step surface 151 or there is a slight gap therebetween, so that the second body 30 and the portion of the first body 20 having the insulation cavity 102 are visually integrated.

[0057] In one embodiment, a circuit board 500 is provided within the insulation cavity 102 and is secured to the second top plate 160. The second top plate 160 is made of an insulating material to prevent heat transfer between the circuit board 500 and the coil module 300. A high-coefficient thermal conductive layer is provided within the insulation cavity 102. This layer is located between the circuit board 500 and the bottom plate 120 and has a mud-like structure. The thermal conductive layer is made of a thermally conductive material, such as silicone grease, to transfer heat from the circuit board 500 to the bottom plate 120 through the thermal conductive layer. It is understood that the side of the circuit board 500 facing the bottom plate 120 may be flat or curved. If the circuit board 500 is attached to the bottom plate 120, the two may not fully adhere, resulting in low heat transfer efficiency between the two. Filling the thermal conductive layer with a mud-like thermal conductive material increases the contact area and has a high thermal conductivity, thereby improving heat transfer efficiency between the circuit board 500 and the bottom plate 120.

[0058] In another embodiment, the second top plate 160 can also be made of thermal conductive material. The heat generated by the circuit board 500 is transferred to the second side plate 140, the third side plate 150 and the bottom plate 120 through the second top plate 160, and then transferred to the external environment.

[0059] In one embodiment, the wireless charging device 10 is provided with a pressure sensor. When the device to be charged is placed on the second body 30, the pressure sensor detects the device to be charged and transmits a signal to the circuit board 500. The circuit board 500 controls the fan 400 to work, thereby helping to cool the device to be charged and the second body 30.

[0060] In one embodiment, the elastic member 40 is a spring.

[0061] like Figure 4 and Figure 5a As mentioned above, when no device to be charged is placed on the wireless charging device 10, the elastic member 40 only bears the weight of the second body 30, resulting in minimal compression. The second body 30 is in the first position, and the second housing 200 is roughly flush with the first housing 100, giving the wireless charging device 10 a more integrated appearance. The second air vent 141 is blocked, isolating the accommodating chamber 101 from external air circulation and preventing external dust from entering the accommodating chamber 101 through the second air vent 141.

[0062] like Figure 6 and Figure 7a The figure shows the state of the wireless charging device 10 when the device to be charged is placed on the second body 30. When the weight of the device to be charged is greater than a certain value, the elastic member 40 is compressed, so that the second body 30 moves downward a certain distance along the Z direction from the first position to the second position. There is a height difference between the second housing 200 and the first housing 100, and the second air outlet 141 is located within the height difference and is exposed. The fan 400 can guide the external air to flow through the first air outlet 131, the third air outlet 410, the fourth air outlet 420, the second air outlet 141 and the gap between the device to be charged and the second housing 200 in sequence, taking away the heat of the device to be charged and the second housing 200.

[0063] like Figure 5bAs shown, in one embodiment, the second housing 200 is provided with a fifth air vent 231 and a sixth air vent 241. When in the first position, the fifth air vent 231 is connected to the second air vent 141. When the wireless charging device 10 is charging a device to be charged, the fan 400 can direct external air to flow through the first air vent 131, the third air vent 410, the fourth air vent 420, the second air vent 141, the fifth air vent 231, the coil module 300, and the sixth air vent 241 to remove heat from the coil module 300. It will be appreciated that for particularly lightweight devices to be charged, such as wireless headphones, when the pressure sensor is insufficient to press the second body 30 to the second position or when the second body 30 is completely in the first position, the device to be charged can also be detected by the pressure sensor and a signal transmitted to the circuit board 500. The circuit board 500 controls the coil module 300 to charge the device to be charged and controls the operation of the fan 400 to dissipate heat from the coil module 300. It is understandable that an elastic member 40 with good elasticity may also be selected so that when a device to be charged of any weight is placed on the second housing 200 , the second housing 200 can be pressed to the second position.

[0064] like Figure 7b As shown, in another embodiment, the second air vent 141 is larger in the Z direction. In the second position, at least a portion of the second air vent 141 is exposed to the second housing 200 and at least partially communicates with the fifth air vent 231. The fan 400 can guide external air through the first air vent 131, the third air vent 410, and the fourth air vent 420, and generate a split at the second air vent 141. Part of the air flows from the second air vent 141 to the gap between the second housing 200 and the device to be charged, removing heat from the device to be charged and the second housing 200; the other part flows from the second air vent 141 to the fifth air vent 231, flows through the coil module 300, and then flows out of the second housing 200 through the sixth air vent 241, removing heat from the coil module 300.

[0065] In the wireless charging device 10 described above, the second body 30 can move relative to the first body 20 to expose or conceal the second air vent 141. When the second body 30 is not carrying a device to be charged, the first body 20 is in the first position, and the second air vent 141 is hidden, effectively isolating dust and foreign matter. The appearance of the wireless charging device 10 is relatively complete, and the visual effect is better. When the second body 30 is carrying a device to be charged, the second body 30 descends relative to the first body 20 in the Z direction and is located in the second position. The first air vent 131, the third air vent 410, the fourth air vent 420, and the second air vent 141 form a heat dissipation duct. External air flows through the heat dissipation duct and flows through the device to be charged and the second body 30, removing heat from the device to be charged and the second body 30.

[0066] like Figure 8As described above, in one embodiment, when the second body 30 switches from the first position to the second position, the second body 30 rotates around the width direction of the wireless charging device 10, that is, the X direction, so that the end of the second body 30 close to the second air outlet 141 moves downward to the second position, and the second air outlet 141 is exposed, so that the fan 400 can guide external air to flow through the first air outlet 131, the second air outlet 141 and the gap between the device to be charged and the second shell 200, thereby removing heat from the device to be charged and the second shell 200.

[0067] like Figure 9 and Figure 10 As shown, in one embodiment, the size of the third side panel 150 increases in the Z direction, extending into the second housing 200. The end of the third side panel 150, distal to the base plate 120, is rotatably connected to the second housing 200 via a shaft disposed along the X direction, enabling the second body 30 to rotate about the X direction within the recessed area 170 between a first position and a second position. In the first position, the second housing 200 is substantially flush with the first housing 100, obstructing the second air vent 141. Rotating the second housing 200 about the shaft disposed along the X direction causes the end of the second housing 200, distal to the second air vent 141, to rotate downward to the second position, exposing the second air vent 141 to the second housing 200.

[0068] like Figure 11 and Figure 12 As shown, in one embodiment, the second body 30 is in the first position, the third side panel 150 extends into the second housing 200, the end of the bottom wall 220 away from the second air outlet 141 abuts the third side panel 150, and the second side panel 240 is in contact with the outer surface of the third side panel 150. It will be appreciated that the third side panel 150 extends to the top wall 210, so that the rotation axis is located at the top of the installation space 201, ensuring that the second housing 200 rotates about the rotation axis without interfering with the second side panel 140. If the rotation axis were located at the bottom wall 220, the intersection of the first side panel 230 and the top wall 210 might interfere with the second side panel 140 when the second housing 200 rotates about the rotation axis.

[0069] like Figure 13 and Figure 14As shown, in one embodiment, after the device to be charged is placed on the second body 30, the elastic member 40 is further compressed by the device to be charged, causing the second body 30 to rotate to the second position around the rotation axis set along the X direction. The second side wall 240 is inclined relative to the Z axis, so that there is a certain angle between the second side wall 240 and the third side plate 150. The height of the end of the second shell 200 away from the second air outlet 141 remains basically unchanged, that is, the end of the second shell 200 close to the second air outlet 141 is roughly flush with the first top plate 110 in the Z direction. The end of the second shell 200 close to the second air outlet 141 is lower than the second air outlet 141, so that the second air outlet 141 is exposed. At the same time, the second shell 200 is inclined in the Z direction, and the compression amount of the side of the elastic member 40 close to the second air outlet 141 is greater than the compression amount of the side away from the second air outlet 141. The fan 400 guides external air into the accommodating chamber 101 from the first air vent 131, flows through the third air vent 410 and the fourth air vent 420 in sequence, flows out of the accommodating chamber 101 from the second air vent 141, and flows into the gap between the device to be charged and the second housing 200, removing heat from the device to be charged and the second housing 200. It is understood that the fan 400 can also guide external air into the accommodating chamber 101 from the second air vent 141 and out of the accommodating chamber 101 from the first air vent 131, and the air at the second air vent 141 can flow through the gap between the device to be charged and the second housing 200.

[0070] It is understood that the second housing 200 may also be provided with a fifth air vent 231 and a sixth air vent 241 to allow air directed by the fan 400 to flow through the coil module 300, thereby cooling the coil module 300. The location and function of the fifth air vent 231 and the sixth air vent 241 in this embodiment are the same as those in the above embodiment and are not further described here.

[0071] Figures 8 to 14 In the wireless charging device 10 shown, the second body 30 can rotate relative to the first body 20 to expose or block the second air vent 141. When the device to be charged does not need to be charged, the second body 30 is in the first position, and the second air vent 141 is hidden, effectively isolating dust and foreign matter. The appearance of the wireless charging device 10 is complete and the visual effect is good. When the device to be charged needs to be charged, the second body 30 rotates relative to the first body 20 about the X-axis toward the bottom plate 120 and is in the second position. The first air vent 131, the third air vent 410, the fourth air vent 420, and the second air vent 141 form a heat dissipation duct. External air flows through the heat dissipation duct and the gap between the device to be charged and the second housing 200, removing heat from the device to be charged and the second housing 200.

[0072] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned 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.

[0073] The above-described embodiments merely represent several implementation methods of the present application. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that a person of ordinary skill in the art may make various modifications and improvements without departing from the spirit of the present application, and these modifications and improvements fall within the scope of protection of the present application. Therefore, the scope of protection of the present patent application shall be determined by the appended claims.

Claims

1. A wireless charging device capable of charging a device to be charged, characterized in that: include: A first body, comprising a first shell and a fan located in the first shell, wherein the first shell is provided with a first air outlet and a second air outlet, the first shell comprises a containing shell, the containing shell forms a containing cavity, the fan is located in the containing cavity, the first air outlet and the second air outlet are respectively provided in the containing shell and communicated with the containing cavity; The second body comprises a second shell and a coil module located in the second shell, wherein the coil module comprises a coil and a magnetic isolation sheet, the magnetic isolation sheet is fixed to the second shell, and the magnetic isolation sheet carries the coil; and an elastic member connected to the first housing and the second housing so as to enable the second body to be located at a first position and a second position; When in the first position, the second body blocks the second air outlet; When in the second position, the second air outlet is exposed, and the fan is capable of guiding external air to flow into the first housing from one of the first air outlet and the second air outlet, and guiding 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 exchange heat with the device to be charged.

2. The wireless charging device according to claim 1, characterized in that: The first housing has a recessed area, and the second body is movable in the recessed area to switch between the first position and the second position.

3. The wireless charging device according to claim 2, characterized in that: One end of the elastic member abuts against the recessed area, and the other end abuts against the second shell; When the device to be charged is placed in the second housing so that the elastic member is compressed, the second body can be located at the second position; When the device to be charged is separated from the second body, the elastic member can drive the second body to return to the first position.

4. The wireless charging device according to claim 3, characterized in that: The second body moves along the thickness direction of the first body, so that the second body switches between the first position and the second position.

5. The wireless charging device according to claim 4, characterized in that: The outer periphery of the recessed area has a step surface, and the second outer shell is sleeved on the outer periphery of the recessed area; When in the first position, a gap exists between the second housing and the step surface.

6. The wireless charging device according to claim 3, characterized in that: One end of the second housing away from the second air outlet is rotatably connected to the first housing, so that the second housing can be rotated to a first position and a second position.

7. The wireless charging device according to any one of claims 1 to 6, characterized in that: The accommodating cavity is a closed square structure or the accommodating cavity is cylindrical.

8. The wireless charging device according to claim 1, 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.

9. The wireless charging device according to claim 7, characterized in that: The first outer shell includes a heat-insulating shell arranged side by side with the accommodating shell, and the height of the heat-insulating shell is smaller than the height of the accommodating shell, so that the first outer shell forms a recessed area.

10. The wireless charging device according to claim 9, characterized in that: A heat-insulating cavity is provided in the heat-insulating shell; the wireless charging device comprises a circuit board, and the circuit board is located in the heat-insulating cavity.

11. The wireless charging device according to claim 10, characterized in that: A heat conducting layer is provided between the circuit board and the first housing.

12. The wireless charging device according to any one of claims 1 to 6, characterized in that: The second housing comprises a top wall and a bottom wall which are arranged opposite to each other, the magnetic isolation sheet is fixed to the bottom wall, and the coil is fixed to a side of the magnetic isolation sheet which is away from the bottom wall.

13. The wireless charging device according to any one of claims 1 to 6, characterized in that: The second housing is provided with a fifth air outlet and a sixth air outlet; When in the first position, the second air outlet is connected to the fifth air outlet, and 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.

14. The wireless charging device according to claim 13, characterized in that: In the second position, the second air port is at least partially exposed, and the second air port is at least partially connected to the fifth air port.

Images