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 is provided with a first air outlet and a second air outlet. And a second body, comprising a second housing and a coil module, and the first housing and the second housing are partially stacked. The first body can move relative to the second body and has 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 the external air to flow in from one of the first air outlet and the second air outlet, and flow out from the other, so that the air and the device to be charged can exchange heat. In the first position, the second air outlet is blocked, which can effectively isolate dust and foreign matter. In the second position, the second air outlet is exposed to form a heat dissipation duct, and the external air flows through the first air outlet and the second air outlet, and exchanges heat with the device to be charged, taking 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, which causes the temperature of the device to be charged to rise. 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, the wireless charging device comprising:

[0005] A first main 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; and

[0006] A second main body includes a second shell and a coil module located in the second shell, and a partial structure of the first shell and the second shell is stacked;

[0007] The first body is capable of moving relative to the second body and having 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 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.

[0008] In the wireless charging device, the first body can move relative to the second body, so that the second air outlet is blocked or exposed by the second body. In the first position, the second air outlet is blocked, which can effectively isolate dust and foreign matter. In the second position, the second air outlet is exposed to form a heat dissipation duct, and the external air flows through the first air outlet and the second air outlet, and performs heat exchange with the device to be charged, taking away the heat of the device to be charged.

[0009] In one embodiment, the second shell has a recessed area, and the first body can move in the recessed area so that the second air outlet is blocked or exposed by the second shell.

[0010] In one embodiment, the first air outlet is opened on the side of the first housing, and the first air outlet is exposed in both the first position and the second position.

[0011] In one embodiment, when in the first position, the first body is attached to the recessed area, and the recessed area blocks the first air outlet;

[0012] When in the second position, the first body is spaced apart from the recessed area and forms a channel, and the fan can guide external air to flow through the channel, the first air outlet, and the second air outlet.

[0013] In one embodiment, the first housing has a boss, the recessed area is provided with a receiving groove, and the first air outlet is located on the peripheral side of the boss;

[0014] When in the first position, the boss is located in the receiving groove, and the groove wall of the receiving groove blocks the first air outlet;

[0015] In the second position, at least a portion of the structure of the boss is located outside the accommodating groove, and the first air outlet is at least partially exposed.

[0016] In one of the embodiments, the first body moves along the thickness direction of the second body, so that the first body switches between the first position and the second position.

[0017] In one embodiment, the first housing includes a first sliding wall, and the second air outlet is located on the first sliding wall; the second housing includes a second sliding wall, and the first sliding wall is attached to the second sliding wall and can slide relative to the second sliding wall to a first position and a second position;

[0018] When in the first position, the second air outlet is blocked by the second sliding wall;

[0019] When in the second position, the second air outlet is exposed, and the fan can guide external air to flow through the first air outlet and the second air outlet.

[0020] In one embodiment, the first housing includes a side plate, the side plate is connected to the first sliding wall, and the first air outlet is opened on the side plate.

[0021] In one embodiment, one of the first sliding wall and the second sliding wall is provided with a protrusion, and the other of the first sliding wall and the second sliding wall is provided with a groove, and the protrusion can slide along the groove, so that the first body can be located at the first position and the second position.

[0022] 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.

[0023] In one embodiment, the invention comprises a driving mechanism connected to at least one of the first body and the second body, wherein the driving mechanism is capable of driving the first body to move between the first position and the second position.

[0024] In one embodiment, the driving mechanism includes a magnetic body and an electromagnet, one of the magnetic body and the electromagnet is fixed to the first body, and the other of the magnetic body and the electromagnet is fixed to the second body.

[0025] In one embodiment, the second housing is provided with a fifth air outlet and a sixth air outlet;

[0026] 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.

[0027] In one embodiment, the second body includes a bracket located in the second shell, the bracket is connected to the second shell, and the coil module is fixed to the bracket.

[0028] In one embodiment, the second body includes a circuit board and a heat insulation structure, the heat insulation structure is located on a side of the bracket facing 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.

[0029] In one embodiment, the bracket is made of a heat-conducting material; and a heat-conducting layer is provided between the circuit board and the second housing. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] 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.

[0031] Figure 1 A three-dimensional diagram of a wireless charging device provided by an embodiment, wherein the first body is located at a first position;

[0032] Figure 2 for Figure 1 A three-dimensional view of the wireless charging device at another angle, wherein the first body is located at a second position;

[0033] Figure 3 for Figure 1An exploded view of the wireless charging device shown;

[0034] Figure 4 for Figure 1 A cross-sectional perspective view of the wireless charging device shown;

[0035] Figure 5 for Figure 1 A cross-sectional view of the wireless charging device shown;

[0036] Figure 6 for Figure 2 A cross-sectional perspective view of the wireless charging device shown;

[0037] Figure 7 for Figure 2 A cross-sectional view of the wireless charging device shown;

[0038] Figure 8 for Figure 1 A perspective view of the wireless charging device shown, wherein the first shell is removed;

[0039] Fig. 9 for Figure 1 A perspective view of the wireless charging device shown, wherein the first shell and the third shell are removed;

[0040] Fig.10 A three-dimensional diagram of a wireless charging device provided for another embodiment, wherein the first body is located at a first position;

[0041] Fig.11 for Fig.10 A three-dimensional view of the wireless charging device at another angle, wherein the first body is located at a second position;

[0042] Fig.12 for Fig.10 A perspective view of a first body of the wireless charging device shown;

[0043] Fig.13 for Fig.10 A perspective view of a second body of the wireless charging device;

[0044] Fig.14 for Fig.10 An exploded view of the wireless charging device shown;

[0045] Fig.15 for Fig.10 A cross-sectional perspective view of the wireless charging device shown;

[0046] Fig.16 for Fig.10 A cross-sectional view of the wireless charging device shown;

[0047] Fig.17 for Fig.11A cross-sectional perspective view of the wireless charging device shown;

[0048] Fig.18 for Fig.11 A cross-sectional view of the wireless charging device shown. DETAILED DESCRIPTION

[0049] 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.

[0050] 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 first body 20 and a second body 30. The first body 20 includes a first shell 100 and a fan 130 disposed in the first shell 100. The first shell 100 is provided with a first air outlet 124 and a second air outlet 111. Part of the structure of the second body 30 is used to support the device to be charged. The first body 20 is stacked on a part of the structure of the second body 30, and the first body 20 can move relative to the second body 30 and have a first position and a second position. In the first position, the second body 30 blocks the second air outlet 111; in the second position, the second air outlet 111 is exposed, and the fan 130 can guide external air to flow into the first housing 100 from one of the first air outlet 124 and the second air outlet 111, and guide air to flow out from the other of the first air outlet 124 and the second air outlet 111, so that the air at the second air outlet 111 can exchange heat with the device to be charged.

[0051] like Figure 1 and Figure 2 As shown, the wireless charging device 10 has an X direction, a Y direction and a Z direction which are perpendicular to each other. 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 shell 200, and the second shell 200 has a recessed area 201. The first body 20 can rise or fall in the recessed area 201 along the thickness direction of the second body 30, that is, the Z direction, so that the first body 30 is located in the first position and the second position. In the first position, the first shell 100 is attached to the recessed area 201, and the second shell 200 blocks the second air outlet 111, so that the second air outlet 111 cannot circulate air. In the second position, the second air outlet 111 is located outside the recessed area 201, so that it will not be blocked by the second shell 200, so that the second air outlet 111 can circulate air.

[0052] In one embodiment, the first air vent 124 is opened at a side of the first housing 100 , and the first air vent 124 is exposed in both the first position and the second position.

[0053] like Figure 2 and Figure 3 As shown, in one embodiment, the recessed area 201 is provided with a receiving groove 2133. The first housing 100 has a boss 101, and the first air outlet 124 is provided on the peripheral side of the first boss 101. In the first position, the first housing 100 is attached to the recessed area 201, and the boss 101 is located in the receiving groove 2133, and the groove wall of the receiving groove 2133 blocks the first air outlet 124. In the second position, a channel 112 is formed between the first body 20 and the recessed area 201, at least part of the structure of the boss 101 is located outside the receiving groove 2133, and the first air outlet is at least partially exposed.

[0054] like Figure 3 and Figure 4 As shown, in one embodiment, the first body 20 is a rectangular parallelepiped or cube structure. In another embodiment, the first body 20 may also be a circular or other polygonal structure. The first housing 100 includes a first shell 110 and a second shell 120. The first shell 110 is an open box-shaped structure, and the boss 101 is located on the side of the second shell 120 away from the first shell 110. The first air outlet 124 is located on the boss 101, and the second air outlet 111 is located on the side of the first shell 110, and the second air outlet 111 is a strip frame structure. The first shell 110 covers the second shell 120, and forms an internal space after being assembled with the second shell 120, and the fan 130 is located in the internal space formed by the first shell 110 and the second shell 120.

[0055] The second shell 120 includes a first bottom wall 121, a second bottom wall 122 and a side wall 123, and the second bottom wall 122 and the side wall 123 form a boss 101. The first bottom wall 121 is connected to the first shell 110. There is a height difference between the first bottom wall 121 and the second bottom wall 122, and the second bottom wall 122 is located on the side of the first bottom wall 121 away from the first shell 110. The side wall 123 is connected between the first bottom wall 121 and the second bottom wall 122. The first air outlet 124 is opened on the side wall 123, and the number of the first air outlet 124 can be multiple, for example, the first air outlet 124 is evenly opened around the side wall 123. In one embodiment, the first bottom wall 121, the side wall 123 and the second bottom wall 122 are an integrally formed structure.

[0056] In one embodiment, the edge profile of the first bottom wall 121 is a square structure, and the edge profile of the second bottom wall 122 is a circular structure. The first bottom wall 121 and the second bottom wall 122 are parallel, and the side wall 123 is perpendicular to the first bottom wall 121. In another embodiment, the shapes of the first bottom wall 121 and the second bottom wall 122 can be changed accordingly as needed, and are not specifically limited here.

[0057] The fan 130 is provided with a third air port 131 and a fourth air port 132. The third air port 131 faces the second shell 120, and the shape and size of the third air port 131 are roughly corresponding to the shape and size of the second bottom wall 122. Specifically, the third air port 131 can be circular, and the diameter can be roughly equal to the diameter of the second bottom wall 122, or can be smaller than the diameter of the second bottom wall 122. Air can flow between the third air port 131 and the first air port 124. The fourth air port 132 is located at the side of the fan 130. Specifically, the edge profile of the cross section of the fan 130 is a constricted shape at the fourth air port 132, so that air can enter or flow out of the fan 130 through the fourth air port 132. In one embodiment, the fan 130 is a centrifugal fan 130.

[0058] In one embodiment, the fan 130 is fixed to the first shell 110. In another embodiment, the fan 130 is fixed to the second shell 120, such as fixed to the first bottom wall 121. The portion of the fan 130 where the fourth air outlet 132 is set faces the second air outlet 111 and abuts against the side of the first shell 110, so that the fourth air outlet 132 is connected to the second air outlet 111, and the air of the fourth air outlet 132 can all flow to the second air outlet 111, or the air of the second air outlet 111 can all flow to the fourth air outlet 132 without air leakage. In one embodiment, the fourth air outlet 132 can also be arranged side by side with the second air outlet 111, and the fourth air outlet 132 and the second air outlet 111 have the same size in the thickness direction of the wireless charging device 10. In another embodiment, the portion of the fan 130 where the fourth air outlet 132 is set can extend into the second air outlet 111, so that the fourth air outlet 132 is located in the second air outlet 111.

[0059] like Figure 3 and Figure 4As shown, in one embodiment, the second body 30 includes a coil module 300, a bracket 400, a heat insulation structure 500 and a circuit board 600 located in the second shell 200. The second shell 200 includes a third shell 210 and a fourth shell 220, and the third shell 210 covers the fourth shell 220 and forms a receiving space 230 together with the fourth shell 220. The coil module 300, the bracket 400, the heat insulation structure 500 and the circuit board 600 are located in the receiving space 230. The circuit board 600 can control the operation of the coil module 300, so that the coil module 300 can transmit signals with the coil inside the device to be charged, so that the coil module 300 can charge the device to be charged.

[0060] like Figure 3 and Figure 4 As shown, in one embodiment, the coil module 300 includes a coil 310 and a magnetic isolation sheet 320, the magnetic isolation sheet 320 is fixed to the bracket 400, and the coil 310 is located on the side of the magnetic isolation sheet 320 facing away from the bracket 400. The bracket 400 is a U-shaped structure, fixed to the fourth shell 220. It can be understood that the bracket 400 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 400 is made of thermally conductive materials, such as metal or hardware materials with good thermal conductivity. The bracket 400 can transfer the heat generated by the coil module 300 to the fourth shell 220. The material of the fourth shell 220 can be metal, hardware or plastic material with good thermal conductivity, which facilitates the bracket 400 to transfer the heat of the coil module 300 to the fourth shell 220, and also facilitates the heat of the fourth shell 220 to be transferred to the external environment.

[0061] like Figure 3 and Figure 4As shown, in one embodiment, the heat insulation structure 500 is an open box-like structure, such as an open square box-like structure, the opening of the heat insulation structure 500 faces the fourth shell 220 and is fixed to the fourth shell 220, and the space enclosed by the heat insulation structure 500 and the fourth shell 220 is a heat insulation cavity. The heat insulation structure 500 is located inside the bracket 400. The circuit board 600 is fixed in the heat insulation cavity, and specifically, it can be arranged on a panel of the heat insulation structure 500 facing the fourth shell 220. The heat insulation structure 500 is made of heat insulation material to prevent heat transfer between the coil module 300 and the circuit board. A heat conduction layer with a higher coefficient is provided in the heat insulation cavity, and the heat conduction layer is located between the circuit board 600 and the fourth shell 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 600 is transferred to the fourth shell 220 through the heat conduction layer. It is understandable that the side of the circuit board 600 facing the fourth shell 220 may be a flat surface or a curved surface. If the circuit board 600 is attached to the fourth shell 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 600 and the fourth shell 220 is high.

[0062] like Figure 3 and Figure 4 As shown, in one embodiment, the third shell 210 includes a first plate 211, a second plate 213 and a connecting wall 212, and there is a height difference between the first plate 211 and the second plate 213, and the connecting wall 212 is connected between the first plate 211 and the second plate 213. The connecting wall 212 and the second plate 213 together form a recessed area 201. The first plate 211 is used to support the device to be charged, and the second plate 213 is used to support the first body 20. The coil module 300 is located between the first plate 211 and the fourth shell 220, so that the coil in the device to be charged corresponds to the coil module 300 in position, avoiding the position offset of the two and affecting the charging efficiency. In one embodiment, the first plate 211 and the second plate 213 are both square structures, and the first plate 211 and the second plate 213 are parallel. In another embodiment, the first plate 211 and the second plate 213 can also be other shapes, such as a circular or polygonal structure, but the shape of the first plate 211 needs to enable the connecting wall 212 to cover the second air outlet 111.

[0063] In one embodiment, a support element is provided on the first plate 211 , and the support element may be a strip structure or a column structure, etc. The support element can support the device to be charged, so that there is a gap between the device to be charged and the outer surface of the first plate 211 .

[0064] like Figure 3 and Figure 4As shown, in one embodiment, the second plate 213 includes a flat plate 2131 and a groove wall 2132, and the groove wall 2132 is connected to the flat plate 2131 and is located on the side of the flat plate 2131 away from the first body 20. The groove wall 2132 is arranged to form a receiving groove 2133. It can be understood that the shape of the receiving groove 2133 is the same as the shape of the side wall 123, so that the side wall 123 can be accommodated in the receiving groove 2133. In one embodiment, the groove wall 2132 abuts against the fourth shell 220, isolating the receiving groove 2133 from the air circulation in the receiving space 230, thereby preventing the higher temperature air in the receiving space 230 from entering the fan 130 through the first air outlet 124 and flowing from the second air outlet 111 to the device to be charged.

[0065] like Figure 4 and Figure 6 As shown, in one embodiment, the first body 20 can move relative to the second body 30 to be located at a first position and a second position. Figure 4 and Figure 5 As shown, in the first position, the first bottom wall 121 is attached to the flat plate 2131 of the second plate 213, and the side wall 123 and the second bottom wall 122 are located in the receiving groove 2133, so that the first air outlet 124 is blocked and the external air cannot enter the first air outlet 124. In the first position, the side of the first shell 110 is attached to the connecting wall 212, so that the connecting wall 212 covers the second air outlet 111, and the first shell 110 is substantially flush with the first plate 211.

[0066] like Figure 6 and Figure 7 As shown, in the second position, the first body 20 rises relative to the second body 30, the first bottom wall 121 and the flat plate 2131 of the second plate 213 are spaced to form a channel 112, and at least part of the structure of the first air outlet 124 is located outside the accommodating groove 2133, so that the first air outlet 124 is exposed. The second air outlet 111 is exposed and higher than the connecting wall 212, so that the second air outlet 111 is exposed. When the fan 130 is working, the external air can flow through the channel 112, the first air outlet 124, the third air outlet 131, the fourth air outlet 132 and the second air outlet 111 in sequence, and flow through the device to be charged, and perform heat exchange with the device to be charged, taking away the heat of the device to be charged, so that the device to be charged can be cooled. The channel 112, the first air outlet 124, the third air outlet 131, the fourth air outlet 132 and the second air outlet 111 form a heat dissipation duct. In one embodiment, the supporting element allows a gap to exist between the device to be charged and the first plate 211 , and the air flowing out through the second air outlet 111 flows through the gap to take away the heat of the device to be charged.

[0067] In another embodiment, when in the second position, the fan 130 is working, and the external air can flow through the device to be charged, the second air outlet 111, the fourth air outlet 132, the third air outlet 131, the first air outlet 124 and the channel 112 in sequence to take away the heat of the device to be charged.

[0068] In one embodiment, the second housing 200 is provided with a fifth air vent and a sixth air vent. When in the first position, the fifth air vent is connected to the second air vent 111. When the wireless charging device 10 charges the device to be charged, the fan can guide the external air to flow through the first air vent 124, the second air vent 111, the fifth air vent, the coil module 300 and the sixth air vent to take away the heat of the coil module 300.

[0069] like Figure 8 and Fig. 9 As shown, in one embodiment, the wireless charging device 10 includes a driving mechanism 700, and the driving mechanism 700 includes an electromagnet 710 and a magnetic body 720. One of the first body 20 and the second body 30 is provided with an electromagnet 710, and the other of them is provided with a magnetic body 720. In one embodiment, the electromagnet 710 is fixed to the side of the flat plate 2131 facing the fourth shell 220, and the magnetic body 720 is fixed to the side of the first bottom wall 121 facing the first shell 110. The positions of the electromagnet 710 and the magnetic body 720 correspond to each other, that is, in the thickness direction of the wireless charging device 10, the electromagnet 710 and the magnetic body 720 are arranged opposite to each other. In the first position, the electromagnet 710 is in a power-off state, and there is no repulsive force between the electromagnet 710 and the magnetic body 720. The first body 20 is stacked on the second plate 213 under the action of gravity, the first bottom wall 121 is in contact with the flat plate 2131, and the side wall 123 and the second bottom wall 122 are located in the receiving groove 2133. When the temperature of the device to be charged is high and the device to be charged needs to be cooled, the circuit board 600 controls the electromagnet 710 to be powered on, and a mutually repulsive force is generated between the electromagnet 710 and the magnetic body 720, driving the first body 20 to move away from the second body 30, so that the first bottom wall 121 and the flat plate 2131 are separated to form a channel 112. The first body 20 switches from the first position to the second position, and under the action of the fan 130, the external air can flow through the channel 112, the first air outlet 124, the third air outlet 131, the fourth air outlet 132 and the second air outlet 111 in sequence, and flow through the surface of the device to be charged to take away the heat of the device to be charged.

[0070] In another embodiment, when in the first position, the electromagnet 710 is in a powered state, and there is a force of attraction between the electromagnet 710 and the magnetic body 720, so that the first body 20 is stacked on the second plate 213. When charging the device to be charged, the circuit board 600 controls the current flowing through the electromagnet 710 to be reversed, so that there is a force of repulsion between the electromagnet 710 and the magnetic body 720, so that the first body 20 is switched from the first position to the second position.

[0071] It can be understood that the driving mechanism 700 may include a motor and a rack, one of the second bottom wall 122 and the fourth shell 220 is provided with a motor, and the other is provided with a rack, and the circuit board 600 can control the operation of the motor so that the second bottom wall 122 is close to or away from the fourth shell 220.

[0072] In one embodiment, when the power of the device to be charged is relatively low, the first body 20 is in the first position, and the device to be charged can meet the heat dissipation requirement by relying on its own heat dissipation. When the power of the device to be charged is relatively high, the first body 20 can move upward relative to the second body 30, so that the first body 20 is in the second position. A device to be charged with relatively high power can generate more heat in the charging state, and the first body 20 is in the second position to help the device to be charged dissipate heat.

[0073] In one embodiment, the circuit board 600 can detect the output power of the wireless charging device 10. When the output power of the wireless charging device 10 reaches a certain threshold, the circuit board 600 controls the electromagnet 710 to be energized and controls the fan 130 to work. It can be understood that when in the first position, the circuit board 600 can control the fan 130 to work or stop, and when in the second position, the circuit board 600 controls the fan 130 to work. After the electromagnet 710 is energized, a mutually repulsive force is generated between the electromagnet 710 and the magnetic body 720, driving the first bottom wall 121 to move away from the second plate 213, that is, the first body 20 moves away from the second body 30, so that the first body 20 changes from the first position to the second position. The external air can flow from the channel 112 to the first air outlet 124, and flow through the third air outlet 131, the fourth air outlet 132 and the second air outlet 111, and flow to the device to be charged, taking away the heat of the device to be charged.

[0074] In another embodiment, a temperature sensor is provided inside the wireless charging device 10. When the temperature sensor detects that the temperature of the wireless charging device 10 or the device to be charged reaches a certain threshold, such as 40°C, the circuit board 600 controls the electromagnet 710 to be energized and controls the fan 130 to work. A mutually repulsive force is generated between the electromagnet 710 and the magnetic body 720, so that the first body 20 changes from the first position to the second position, and can help the device to be charged to dissipate heat.

[0075] It is understandable that when the power of the device to be charged is small, the charging power between the wireless charging device 10 and the device to be charged is small, and the heat generated is small. Then, the first body 20 can complete the charging when it is in the first position, and the heat of the device to be charged can be dissipated by itself. When the heat dissipation of the wireless charging device 10 and the device to be charged is insufficient, the temperature of the device to be charged rises, and the temperature of the device to be charged or the wireless charging device 10 reaches the threshold, the first body 20 switches to the second position, and the fan 130 works, so that the heat of the device to be charged can be quickly transferred to the surrounding environment. It is understandable that when the temperature of the wireless charging device 10 or the device to be charged is lower than the threshold, the first body 20 can be switched to the first position again. The way in which the first body 20 switches between the first position and the second position is the same as above, and will not be repeated here.

[0076] When the power of the contemporary charging device is large, the charging power between the wireless charging device 10 and the device to be charged is large. Similarly, the temperature sensor can be used to detect whether the temperature of the wireless charging device 10 or the device to be charged reaches a threshold, or the circuit board 600 can be used to detect whether the output power of the wireless charging device 10 reaches a threshold, so as to control the operation of the electromagnet 710 and the fan 130, and control the first body 20 to switch between the first position and the second position.

[0077] It is understandable that the wireless charging device 10 may also be provided with a pressure sensor. When the pressure sensor detects that the device to be charged is placed on the first plate 211, the circuit board 600 controls the electromagnet 710 and the fan 130 to operate, so that the first body 20 switches from the first position to the second position.

[0078] In the above wireless charging device, the first body 20 can move relative to the second body 30 to expose the first vent 124, the second vent 111 and shield the first vent 124, the second vent 111. When it is not necessary to charge the device to be charged or the power of the device to be charged is relatively low, the first body is located in the first position, the first vent 124 and the second vent 111 are hidden, and dust and foreign matter can be effectively isolated. The appearance of the wireless charging device 10 is complete and the visual effect is good. When it is necessary to charge the device to be charged or the power of the device to be charged is relatively high, the first body rises relative to the second body 30 and is located in the second position, and the channel 112, the first vent 124, the third vent 131, the fourth vent 132 and the second vent 111 form a heat dissipation duct, and the external air flows through the heat dissipation duct and flows through the device to be charged, taking away the heat of the device to be charged.

[0079] like Fig.10 and Fig.11As shown, in one embodiment, a wireless charging device 10 is provided. The wireless charging device 10 is different from the wireless charging device 10 in the above embodiment. Specifically, the first housing 100 is different in appearance from the first housing 100 in the above embodiment, and the second housing 200 is different in appearance from the second housing 200 in the above embodiment. The components in the first housing 100 are the same as the components in the first housing 100 in the above embodiment, and the components in the second housing 200 are the same as the components in the second housing 200 in the above embodiment.

[0080] like Fig.10 and Fig.11 As shown, in one embodiment, the first body 20 of the wireless charging device 10 can slide obliquely relative to the second body 30, so that the first body 20 is located at the first position and the second position. The first shell 100 of the first body 20 is a pentahedral structure, and the shape of the first shell 100 is equivalent to the part of a rectangular parallelepiped or a cube cut along the diagonal surface. The second shell 200 is a hexahedral structure, and the first shell 100 and the second shell 200 are spliced ​​to form a completed rectangular parallelepiped structure. In another embodiment, the shape of the first shell 100 and the second shell 200 can be designed as needed, for example, the first shell 100 and the second shell 200 are spliced ​​to form a cylinder, etc.

[0081] like Fig.12 and Fig.13 As shown, in one embodiment, the first housing 100 includes a containing frame 140 and a side panel 150, the fan 130 is located in the containing frame 140, and the side panel 150 is connected to the containing frame 140 and covers the containing frame 140. The containing frame 140 includes a first sliding wall 141, and the side panel 150 is fixed to one end of the first sliding wall 141. The side panel 150 is provided with a first air outlet 124, and the first sliding wall 141 is provided with a second air outlet 111. The second housing 200 includes a third shell 210 and a fourth shell 220, the third shell 210 includes a first plate 211 and a second sliding wall 214, the first plate 211 is used to support the device to be charged, and the second sliding wall 214 is inclined relative to the first plate 211. As shown Fig.10 As shown, in the first position, the first sliding wall 141 and the second sliding wall 214 are directly opposite to each other, and the second air outlet 111 is covered by the second sliding wall 214, so that air cannot flow. Fig.11 As shown, in the second position, the first sliding wall 141 slides a certain distance relative to the second sliding wall 214, so that the second air port 111 is exposed to the second sliding wall 214. The fan 130 guides the external air to flow through the first air port 124 and the second air port 111, so as to flow through the device to be charged to be located on the first plate 211 and take away the heat of the device to be charged.

[0082] In another embodiment, the second housing 200 is provided with a fifth air vent and a sixth air vent, and the fifth air vent is connected to the second air vent 111. In the first position, when the wireless charging device 10 charges the device to be charged, the fan 130 guides the external air to flow through the first air vent 124, the second air vent 111, the fifth air vent, the coil module 300 and the sixth air vent to take away the heat of the coil module 300. The specific flow direction of the air can be to enter the first housing 100 from the first air vent 124 and flow out of the second housing 200 from the sixth air vent, or to enter the second housing 200 from the sixth air vent and flow out of the first housing 100 from the first air vent 124.

[0083] like Fig.12 and Fig.13 As shown, in one embodiment, one of the first sliding wall 141 and the second sliding wall 214 is provided with a protrusion 215, and the other one is provided with a groove 142, and the protrusion 215 can slide along the groove 142, so that the first body 20 can be located at the first position and the second position. For example, the protrusion 215 is located on the second sliding wall 214, and the groove 142 is located on the first sliding wall 141. In the sliding direction of the first body 20, the size of the protrusion 215 is smaller than the size of the groove 142, so that the protrusion 215 can slide in the groove 142, so that the first body 20 can switch between the first position and the second position.

[0084] like Fig.14 and Fig.15 As shown, in one embodiment, the fan 130 is the same as the fan 130 in the wireless charging device 10 having the first position and the second position. The third air outlet 131 of the fan 130 faces the first sliding wall 141, and there is a gap between the third air outlet 131 and the first sliding wall 141, so that air can flow between the first air outlet 124 and the third air outlet 131. The fourth air outlet 132 of the fan 130 abuts the first sliding wall 141, so that the fourth air outlet 132 is arranged side by side with the second air outlet 111, or the fourth air outlet 132 is located in the second air outlet 111, and the fourth air outlet 132 is connected to the second air outlet 111.

[0085] like Fig.16 and Fig.18 As shown, in one embodiment, the electromagnet 710 of the driving mechanism 700 is located in the second shell 120 and fixed to the side of the second sliding wall 214 away from the first body 20, and the magnetic body 720 of the driving mechanism 700 is located in the first shell 110 and fixed to the side of the first sliding wall 141 away from the second body 30. The circuit board 600 can control the direction of the current of the electromagnet 710, and control the electromagnet 710 and the magnetic body 720 to have a force of mutual attraction or mutual repulsion, thereby controlling the first body 20 to switch between the first position and the second position.

[0086] In one embodiment, the magnetic body 720 includes a first magnetic body 721 and a second magnetic body 722. In the first position, there is a force of mutual attraction between the electromagnet 710 and the first magnetic body 721, and there is a force of mutual repulsion between the electromagnet 710 and the second magnetic body 722. After the device to be charged is placed on the first plate 211, the pressure sensor in the second body 30 detects the device to be charged, and the circuit board 600 controls the coil module 300 and the fan 130 to work, and controls the current of the electromagnet 710 to reverse, so that a force of mutual repulsion is generated between the electromagnet 710 and the first magnetic body 721, and a force of mutual attraction is generated between the electromagnet 710 and the second magnetic body 722, thereby driving the first body 20 to move to switch to the second position.

[0087] In another embodiment, the electromagnet 710 may also be fixed inside the first shell 110 , and the magnetic body 720 may be fixed inside the second shell 120 .

[0088] like Fig.17 and Fig.18 As shown, in one embodiment, the first body 20 is located at the second position. External air enters the first housing 100 through the first air outlet 124, flows through the third air outlet 131 and the fourth air outlet 132, flows out of the first housing 100 from the second air outlet 111, and flows through the surface of the device to be charged. The device to be charged can be supported by a supporting element or directly placed on the first plate 211. The air takes away the heat of the device to be charged, so that the temperature of the device to be charged is reduced.

[0089] In another embodiment, when the first body 20 is located at the second position, the external air flows through the second air outlet 111, the fourth air outlet 132, and the third air outlet 131 in sequence, and flows out of the first housing 100 from the first air outlet 124. It can be understood that as the air flows, the air can flow through the surface of the device to be charged and take away the heat of the device to be charged.

[0090] It can be understood that the second shell 200 of the present embodiment is also provided with a coil module 300, a bracket 400, a thermal insulation structure 500 and a circuit board 600, and the positions and functions of these components are exactly the same as the positions and functions of the coil module 300, the bracket 400, the thermal insulation structure 500 and the circuit board 600 in the wireless charging device 10 in which the first body 20 can be raised and lowered, and they will not be repeated here.

[0091] Figures 10 to 18In the wireless charging device shown, the first body 20 can slide relative to the second body 30 to expose the second air outlet 111 and cover the second air outlet 111. When it is not necessary to charge the device to be charged or the power of the device to be charged is relatively low, the first body 20 is located in the first position, and the second air outlet 111 is hidden, which can effectively isolate dust and foreign matter. The appearance of the wireless charging device 10 is complete and the visual effect is good. When it is necessary to charge the device to be charged, or the power of the device to be charged is relatively high, the first body 20 slides sideways relative to the second body 30 and rises to the second position. The first air outlet 124, the third air outlet 131, the fourth air outlet 132 and the second air outlet 111 form a heat dissipation duct. The external air flows through the heat dissipation duct and flows through the device to be charged, taking away the heat of the device to be charged.

[0092] 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.

[0093] 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: The wireless charging device comprises: A first main 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, and the first housing includes a first shell and a second shell, wherein the first shell covers the second shell and forms an internal space for accommodating the fan with the second shell; and A second main body includes a second shell and a coil module located in the second shell, and a partial structure of the first shell and the second shell is stacked; The first body is capable of moving relative to the second body and having 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 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 second shell has a recessed area, and the first body can move in the recessed area, so that the second air outlet is blocked or exposed by the second shell.

3. The wireless charging device according to claim 2, characterized in that: The first air outlet is opened at a side of the first housing, and the first air outlet is exposed in both the first position and the second position.

4. The wireless charging device according to claim 2, characterized in that: When in the first position, the first body is attached to the recessed area, and the recessed area blocks the first air outlet; When in the second position, the first body is spaced apart from the recessed area and forms a channel, and the fan can guide external air to flow through the channel, the first air outlet, and the second air outlet.

5. The wireless charging device according to claim 4, characterized in that: The first housing has a boss, the recessed area is provided with a receiving groove, and the first air outlet is located on the peripheral side of the boss; When in the first position, the boss is located in the receiving groove, and the groove wall of the receiving groove blocks the first air outlet; In the second position, at least a portion of the structure of the boss is located outside the accommodating groove, and the first air outlet is at least partially exposed.

6. The wireless charging device according to claim 5, characterized in that: The first body moves along a thickness direction of the second body so that the first body switches between the first position and the second position.

7. The wireless charging device according to claim 1, characterized in that: The first housing includes a first sliding wall, and the second air outlet is located on the first sliding wall; the second housing includes a second sliding wall, and the first sliding wall is attached to the second sliding wall and can slide relative to the second sliding wall to a first position and a second position; When in the first position, the second air outlet is blocked by the second sliding wall; When in the second position, the second air outlet is exposed, and the fan can guide external air to flow through the first air outlet and the second air outlet.

8. The wireless charging device according to claim 7, characterized in that: The first housing includes a side plate, the side plate is connected to the first sliding wall, and the first air outlet is opened on the side plate.

9. The wireless charging device according to claim 7, characterized in that: One of the first sliding wall and the second sliding wall is provided with a protrusion, and the other of the first sliding wall and the second sliding wall is provided with a groove, and the protrusion can slide along the groove, so that the first body can be located at the first position and the second position.

10. The wireless charging device according to any one of claims 1 to 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 any one of claims 1 to 9, characterized in that: A driving mechanism is included which is connected to at least one of the first body and the second body, and the driving mechanism is capable of driving the first body to move between the first position and the second position.

12. The wireless charging device according to claim 11, characterized in that: The driving mechanism includes a magnetic body and an electromagnet, one of the magnetic body and the electromagnet is fixed to the first body, and the other of the magnetic body and the electromagnet is fixed to the second body.

13. The wireless charging device according to any one of claims 1 to 9, 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 any one of claims 1 to 9, characterized in that: The second main body includes a bracket located in the second shell, the bracket is connected to the second shell, and the coil module is fixed to the bracket.

15. The wireless charging device according to claim 14, characterized in that: The second body includes a circuit board and a heat insulation structure. The heat insulation structure is located on a side of the bracket facing 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.

16. The wireless charging device according to claim 15, characterized in that: The bracket is made of heat-conducting material; a heat-conducting layer is provided between the circuit board and the second shell.

Images