Wireless charging equipment

Abstract

The present application relates to a wireless charging device, comprising: a first body, including a coil module and a fan, the coil module and the fan are located in a first accommodating space, and the first body is provided with a second vent and a first vent. And a second body, which is stacked with the first body. The first body can move relative to the second body to form a channel or close the channel, and when the channel is formed, the fan works, and the external air can flow through the channel, the first vent, the second vent and the first accommodating space to exchange heat with the coil module. The first body can move relative to the second body to form or close the channel. For a device to be charged with lower power, less heat is generated, and the channel can be in a closed state. For a device to be charged with higher power, more heat is generated, and the channel can be in an open state. The air in the first accommodating space can flow relative to the outside air through the channel and the first vent, taking away the heat of the coil module.

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 that 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, comprising:

[0005] A first body, comprising a coil module and a fan, wherein the coil module and the fan are located in a first accommodation space inside the first body, and the first body is provided with a second vent and a first vent communicating with the first accommodation space; and

[0006] A second body, stacked with the first body;

[0007] The first body can move relative to the second body to form a channel or close the channel, and when the channel is formed, the fan works, and external air can flow through the channel, the first vent, the second vent and the first accommodating space to perform heat exchange with the coil module.

[0008] In the above-mentioned wireless charging device, the coil module is located in the first accommodation space of the first body, and the first body is provided with a first vent. The first body can move relative to the second body to form a channel or close the channel. For a device to be charged with lower power, less heat is generated, and the channel can be in a closed state. For a device to be charged with higher power, more heat is generated, and the channel can be in an open state. The air in the first accommodation space can flow relative to the outside air through the channel and the first vent, so that the heat generated by the coil module is taken out of the wireless charging device.

[0009] In one embodiment, the first body is movable relative to the second body to have a first state and a second state;

[0010] In the first state, one end of the first body close to the second body contacts the second body and closes the channel;

[0011] In the second state, one end of the first body close to the second body is spaced apart from the second body and forms the channel.

[0012] In one embodiment, the first body is provided with a second accommodation space spaced apart from the first accommodation space, and the second body is located in the second accommodation space;

[0013] The first body is provided with a second vent, and the second vent is connected with the first accommodation space and the second accommodation space;

[0014] In the second state, the fan is working, and the passage, the second accommodating space, the second vent, the first accommodating space, and the first vent can form an air flow passage so that the air inside the first accommodating space and the external air flow relative to each other.

[0015] In one embodiment, the first body includes a first shell and a second shell, the second shell is installed inside the first shell and forms the first accommodation space with the first shell, and a side of the second shell facing away from the first accommodation space and a part of the structure of the first shell form the second accommodation space;

[0016] The second vent is located in the second shell, and the first vent is located in the first shell.

[0017] In one embodiment, the first shell includes a first plate and a first side wall, the first side wall surrounds the first plate; the first vent is opened in the first plate; the second shell is installed on the first side wall;

[0018] In the first state, the inner surface of the first side wall is attached to the second body;

[0019] In the second state, the channel exists between the inner surface of the first side wall and the second body.

[0020] In one of the embodiments, a supporting element is provided on the outer surface of the first plate.

[0021] In one embodiment, the second shell includes a second plate and a second side wall, the second side wall surrounds the second plate; the second vent is opened in the second side wall; and the second side wall is installed on the first shell.

[0022] In one of the embodiments, the fan is located on the side of the coil module facing the second shell; the first main body includes an air guide plate located in the first accommodating space, and the air guide plate is located on the side of the fan facing away from the coil module; the air guide plate covers the second shell.

[0023] In one embodiment, the air guide plate is provided with a first through hole, and a second through hole is provided on a side of the fan facing the air guide plate, and the first through hole and the second through hole are connected; the air from the second vent can pass through the first through hole and the second through hole into the fan.

[0024] In one embodiment, the first body includes a first shell and a second shell; the first shell includes a first side wall, and the second shell includes a second plate;

[0025] The second body includes a third shell, and the third shell includes a third plate and a third side wall surrounding the third plate;

[0026] In the first state, the second plate is attached to the third plate, and the first side wall is attached to the third side wall;

[0027] In the second state, there is a gap between the second plate and the third plate, and the channel exists between the first side wall and the third side wall.

[0028] In one of the embodiments, one of the first side wall and the third side wall is provided with a light bar, and in the second state, the light bar is lit.

[0029] In one embodiment, the second body includes a fourth shell and a circuit board. The fourth shell covers the third shell to form a third accommodating space. The circuit board is located in the third accommodating space.

[0030] In one of the embodiments, a silicone pad is provided on a side of the fourth shell facing away from the third shell.

[0031] In one embodiment, there is a heat-conducting layer between the circuit board and the fourth shell; and the third shell is made of heat-insulating material.

[0032] In one embodiment, a driving assembly is included, wherein the driving assembly is connected to the second plate and the second body, and the driving assembly is capable of driving the first body to move relative to the second body.

[0033] In one embodiment, the third shell includes an annular wall, and the annular wall, the fourth shell and the second plate together form a fourth accommodating space. The drive assembly is located in the fourth accommodating space, and one end of the drive assembly is connected to the fourth shell, and the other end is connected to the second plate.

[0034] In one embodiment, the driving assembly includes a magnetic body and an electromagnet, one of the magnetic body and the electromagnet is connected to the fourth housing, and the other of the magnetic body and the electromagnet is connected to the second plate.

[0035] In one embodiment, the driving assembly includes a motor and a rack, one of the motor and the rack is connected to the fourth housing, and the other of the motor and the rack is connected to the second plate.

[0036] In one embodiment, the second shell includes a positioning sleeve, and the positioning sleeve is sleeved on the inner surface of the annular wall. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] 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.

[0038] Figure 1 A three-dimensional diagram of a wireless charging device provided by an embodiment;

[0039] Figure 2 for Figure 1 A cross-sectional view of the wireless charging device shown, wherein the wireless charging device is in a first state;

[0040] Figure 3 for Figure 1 A cross-sectional view of the wireless charging device shown, wherein the wireless charging device is in a second state;

[0041] Figure 4 for Figure 1 An exploded view of the wireless charging device shown;

[0042] Figure 5 for Figure 1 An exploded view of the wireless charging device shown in another angle;

[0043] Figure 6 for Figure 4 An exploded view of a first body of the wireless charging device shown;

[0044] Figure 7 for Figure 6 An assembly view of the first body shown, wherein the first housing is cut away;

[0045] Figure 8 for Figure 4 An exploded view of the second body of the wireless charging device shown;

[0046] Fig. 9 for Figure 8 A cross-sectional view of the second body in an assembled state;

[0047] Fig.10 for Figure 1 A cross-sectional view of the wireless charging device in another embodiment;

[0048] Fig.11 for Fig.10 A perspective view of a motor and a rack in the wireless charging device shown;

[0049] Fig.12 for Figure 1 A cross-sectional view of yet another embodiment of a wireless charging device is shown. DETAILED DESCRIPTION

[0050] 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.

[0051] like Figures 1 to 3 As shown, in one embodiment, a wireless charging device 10 is provided, which includes a first main body 20 and a second main body 30 which are stacked. A first accommodating space 60 is provided in the first main body 20, and components such as a coil module 200 and a fan 400 are provided in the first accommodating space 60. The first main body 20 is provided with a second vent 621 and a first vent 111. When a user charges a device to be charged, the device to be charged can be placed on the first main body 20, and the coil inside the device to be charged can transmit electrical signals with the coil 210 of the coil module 200, so that the wireless charging device 10 can charge the device to be charged. The device to be charged can be an electronic device such as a mobile phone, a tablet computer, etc. The first body 20 can move relative to the second body 30 to form a channel 50 or close the channel 50, and when the channel 50 is formed, the fan 400 works, and the external air can flow through the channel 50, the first vent 111, the second vent 621 and the first accommodating space 60 to exchange heat with the coil module 200, and take away the heat of the coil module 200 and other heat in the first accommodating space 60, so as to cool the first body 20.

[0052] The first body 20 can move relative to the second body 30 so that the wireless charging device 10 has a first state and a second state. In the first state, one end of the first body 20 close to the second body 30 contacts the second body 30 and closes the channel 50 to block the connection between the second vent 621 and the outside; in the second state, one end of the first body 20 close to the second body 30 is spaced from the second body 30 and forms the channel 50, and the channel 50, the second vent 621, the first accommodating space 60 and the first vent 111 can form an airflow channel, i.e., a heat dissipation duct, so that the air in the first accommodating space 60 and the external air flow relative to each other, so that the wireless charging device 10 dissipates heat.

[0053] In one embodiment, external air can flow from the channel 50 into the second vent 621 to enter the first accommodation space 60, and flow out from the first vent 111 to take away the heat of the coil module 200. In another embodiment, external air can enter the first accommodation space 60 from the first vent 111, flow out of the first accommodation space 60 from the second vent 621, and then flow out of the wireless charging device 10 through the channel 50 to take away the heat of the coil module 200.

[0054] In another embodiment, by changing the rotation direction of the fan 400, when the wireless charging device 10 is in the second state, the fan 400 works, and the outside air enters the first accommodation space from the first vent 111, flows through the coil module 200, flows out of the first accommodation space 60 from the second vent 621, and flows out of the wireless charging device 10 from the channel 50, thereby taking away the heat inside the first accommodation space 60.

[0055] When the power of the device to be charged is relatively low, the first body 20 and the second body 30 are as follows. Figure 2 When the power of the device to be charged is large, as shown in the first state. Figure 3 As shown, the first body 20 can move upward relative to the second body 30, so that the wireless charging device 10 is in the second state, and a channel 50 is formed between the first body 20 and the second body 30. The outside air can enter the wireless charging device 10 through the channel 50 between the first body 20 and the second body 30, and take away the heat of the device to be charged and the wireless charging device 10 as the air flows out of the wireless charging device 10.

[0056] like Figure 4 and Figure 5As shown, in one embodiment, in the thickness direction of the wireless charging device 10, the wireless charging device 10 sequentially includes a first housing 100, a coil module 200, a bracket 300, a fan 400, an air guide plate 500, a second housing 600, a third housing 700, a circuit board 800 and a fourth housing 900. A driving component 40 is provided between the second housing 600 and the third housing 700, and the driving component 40 can drive the second housing 600 away from the third housing 700.

[0057] like Figure 6 and Figure 7 As shown, in one embodiment, the first housing 100, the coil module 200, the bracket 300, the fan 400, the air guide plate 500 and the second housing 600 together form the first body 20. Figure 8 and Fig. 9 As shown, the third housing 700, the circuit board 800 and the fourth housing 900 together form the second body 30. The driving assembly 40 is located between the first body 20 and the second body 30, and can drive the first body 20 away from the second body 30.

[0058] like Figure 6 and Figure 7 As shown, in one embodiment, the first shell 100 includes a first plate 110 and a first side wall 120, and the first side wall 120 extends from the edge of the first plate 110, so that the first shell 100 becomes an open box-shaped structure. It can be understood that the open box-shaped structure can be an open circular box-shaped structure, or an open square box-shaped structure, or an open conical box-shaped structure, and is not limited thereto. In this embodiment, the first plate 110 is a circular plate, and the first side wall 120 is inclined relative to the first plate 110, so that the first shell 100 is an open conical box-shaped structure. A plurality of first vents 111 are provided on the first plate 110, and the air inside the wireless charging device 10 can flow out through the first vents 111, thereby taking away the heat inside the wireless charging device 10. The first plate 110 and the first side wall 120 can be an integrally formed structure.

[0059] In one embodiment, a support element 112 is provided on one side of the first plate 110 facing away from the first side wall 120. When the device to be charged is charged, it can be placed on the support element 112, so that there is a certain distance between the device to be charged and the first vent 111, so that the device to be charged does not cover the first vent 111, and the air flowing out of the first vent 111 can flow through the surface of the device to be charged and take away the heat of the device to be charged, so that the device to be charged is cooled down. The material of the support element 112 can be silicone.

[0060] The second shell 600 includes a second plate 610 and a second side wall 620, and the second side wall 620 surrounds the second plate 610. In one embodiment, the second side wall 620 and the second plate 610 are an integrally formed structure. In another embodiment, the second side wall 620 and the second plate 610 are made separately and then assembled. The second shell 600 is an open box-shaped structure, which can be an open circular box-shaped structure, or an open square box-shaped structure, or an open conical structure, and is not limited thereto. In this embodiment, the second plate 610 is a circular plate, and the second side wall 620 is inclined relative to the second plate 610, so that the second shell 600 is a conical open box-shaped structure. A plurality of second vents 621 are provided on the second side wall 620, and the second vents 621 are evenly distributed on the circumference of the second side wall 620. After the channel 50 is provided between the first body 20 and the second body 30 , external air can enter the first body 20 through the second vent 621 , take away the heat of the coil module 200 , and flow out of the first body 20 through the first vent 111 .

[0061] like Figure 2 and 7 As shown, in the assembled state of the first body 20, the openings of the first shell 100 and the second shell 600 are arranged opposite to each other, and the second side wall 620 is connected to the inner surface of the first side wall 120 and has a certain distance from the end of the first side wall 120, that is, the second shell 600 is located inside the first shell 100, so that a first accommodating space 60 is formed between the first shell 100 and the second shell 600, and the first side wall 120 and the second shell 600 on the side facing away from the first plate 110 form an open second accommodating space 70. The coil module 200, the bracket 300, the fan 400 and the guide plate are sequentially arranged in the first accommodating space 60, the coil module 200 is close to the first plate 110, and the guide plate is close to the first side wall 120. The fan 400 is located on the side of the coil module 200 facing the second shell 600, and the air guide plate 500 is located on the side of the fan 400 facing away from the coil module 200. The bracket 300 is used to support the coil module 200. In one embodiment, the coil module 200 includes a coil 210 and a magnetic isolation sheet 220, the magnetic isolation sheet 220 is fixed to the bracket 300, and the coil 210 is located on the side of the magnetic isolation sheet 220 facing away from the bracket 300. The second body 30 is disposed in the second accommodating space 70 and is non-fixedly connected to the first body 20, so that the first body 20 can move relative to the second body 30 and have a first state and a second state.

[0062] In one embodiment, the air guide plate 500 is covered with a second side wall 620 to prevent the air flowing through the second vent 621 from flowing directly to the first vent 111 without flowing through the coil module 200. The air guide plate 500 is provided with a first through hole 510, and the air flowing through the second vent 621 can enter the second housing 600 and flow to the first through hole 510. The fan 400 is a centrifugal fan, and the fan 400 is provided with a second through hole 410 on a side facing the air guide plate 500, and the first through hole 510 and the second through hole 410 are connected. In one embodiment, the first through hole 510 and the second through hole 410 are coaxially arranged, and the diameters of the first through hole 510 and the second through hole 410 can be the same or different, for example, the diameter of the first through hole 510 is larger than the diameter of the second through hole 410, or the diameter of the first through hole 510 is smaller than the diameter of the second through hole 410. In another embodiment, the first through hole 510 and the second through hole 410 may also be non-coaxial. The side wall of the fan 400 is provided with a side vent 420, and the number of the side vents 420 is multiple, for example, 4. When the fan 400 is working, the outside air enters the first accommodation space 60 through the second vent 621, first enters the second shell 600, flows through the first through hole 510 and the second through hole 410 to enter the fan 400, and flows out from the side vent 420, flows through the coil module 200 and flows out of the wireless charging device 10 from the first vent 111, taking away the heat of the coil module 200 and the heat of other components in the first body 20, so that the first body 20 can dissipate heat.

[0063] like Figure 8 and Fig. 9As shown, in one embodiment, the second body 30 includes a third shell 700, a fourth shell 900 and a circuit board 800. The third shell 700 includes an annular wall 730, a third plate 710 and a third side wall 720 surrounding the third plate 710. The third plate 710 is an annular plate, the annular wall 730 is connected to the inner ring of the third plate 710 and is perpendicular to the third plate 710, and the third side wall 720 is connected to the outer ring of the third plate 710 and is inclined between the third plate 710. In one embodiment, the annular wall 730, the third plate 710 and the third side wall 720 are an integrally formed structure. The fourth shell 900 is installed on the side of the third side wall 720 that faces away from the third plate 710, so that the third shell 700 and the fourth shell 900 form a third accommodating space 80, and the circuit board 800 is located in the third accommodating space 80. In one embodiment, a heat conductive layer is provided between the circuit board 800 and the fourth shell 900, and the heat conductive layer is made of a heat conductive material, such as mud-like silicone grease. It is understandable that if the circuit board 800 is directly attached to the fourth shell 900, the circuit board 800 and the fourth shell 900 are not necessarily both planes, and the contact area between the two is small, and the thermal conductivity is small. After the mud-like thermal conductive layer is set between the two, the contact area between the circuit board 800, the fourth shell 900 and the thermal conductive layer is increased, and the thermal conductivity of the thermal conductive layer is large, so that the heat generated by the circuit board 800 during operation can be quickly transferred to the fourth shell 900, and then transferred to the environment around the second body 30.

[0064] In one embodiment, the third housing 700 is made of heat-insulating material to prevent the heat generated by the circuit board 800 during operation from being transferred to the first body 20. In another embodiment, a heat-insulating material is attached to the surface of the third housing 700. The circuit board 800 may be a PCB board.

[0065] like Figure 2 and Figure 3As shown, in one embodiment, a driving assembly 40 is provided between the first body 20 and the second body 30, and the driving assembly 40 can drive the first body 20 to move relative to the second body 30 to have a first state and a second state. In the first state, the entire structure of the second body 30 is located in the second receiving groove, the second plate 610 and the third plate 710 are in contact, and the inner surface of the first side wall 120 and the outer surface of the third side wall 720 are in contact. External air cannot enter the first receiving space 60. In the second state, the first body 20 rises relative to the second body 30, there is a gap between the second plate 610 and the third plate 710, and there is a channel 50 between the first side wall 120 and the third side wall 720. The outside air can enter the second storage space 70 through the channel 50. Driven by the fan 400, the outside air passes through the second vent 621 in turn to enter the first storage space 60, and then passes through the first through hole 510, the second through hole 410 and the side air port 420 in turn, and flows through the surface of the coil module 200, takes away the heat of the coil module 200 and then flows out from the first vent 111. The channel 50, the second storage space 70, the second vent 621, the first storage space 60 and the first vent 111 form an air flow channel, i.e., a heat dissipation duct.

[0066] In another embodiment, in the first state, the end surface of the first side wall 120 away from the first plate 110 is attached to the surface of the third plate 710, which can be understood as the first body 20 "standing" on the third plate 710. In an ideal state, there is no gap between the end of the first side wall 120 and the surface of the third plate 710, and the outside air cannot enter the first accommodation space 60 from there. In the second state, the first body 20 rises relative to the second body 30, so that there is a channel 50 between the end of the first side wall 120 and the third plate 710, the first accommodation space 60 and the second accommodation space 70 are connected, and the outside air can enter the first accommodation space 60 from the channel 50, thereby taking away the heat of the coil module 200 under the drive of the fan 400.

[0067] like Figure 2 and Figure 3As shown, in one embodiment, the annular wall 730, the fourth shell 900 and the second plate 610 are enclosed together to form a fourth accommodation space 90. The second shell 600 includes a positioning sleeve 622, which is located on the side of the second plate 610 facing away from the second side wall 620. The positioning sleeve 622 has the same shape as the annular wall 730. In the first state, the positioning sleeve 622 is located in the fourth accommodation space 90, and the outer surface of the positioning sleeve 622 is attached to the inner surface of the annular wall 730. When the first body 20 moves relative to the second body 30, the cooperation between the positioning sleeve 622 and the annular wall 730 can limit the movement of the first body 20, so that the first body 20 can only move relative to the second body 30 along the thickness direction of the wireless charging device 10, but not in other directions. In one embodiment, the second plate 610 is a planar structure. In another embodiment, the area of ​​the second plate 610 surrounded by the positioning sleeve 622 is recessed toward the first accommodation space 60 to facilitate the installation of the drive assembly 40.

[0068] like Figure 2 and Figure 3 As shown, in one embodiment, the driving assembly 40 includes a magnetic body 41 and an electromagnet 42, one of which is connected to the fourth housing 900, and the other of which is connected to the second plate 610. In one embodiment, the circuit board 800 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 800 controls the electromagnet 42 to be energized and controls the fan 400 to work. After the electromagnet 42 is energized, a repulsive force is generated between the electromagnet 42 and the magnetic body 41, driving the second plate 610 to move away from the second body 30, that is, the first body 20 moves away from the second body 30, so that the wireless charging device 10 changes from the first state to the second state. The outside air can enter the first accommodation space 60 from the second vent 621, taking away the heat inside the first accommodation space 60. And after flowing out from the first vent 111, it can flow through the surface of the device to be charged, taking away the heat from the surface of the device to be charged.

[0069] In another embodiment, a temperature sensor is provided inside the wireless charging device 10. When the temperature sensor detects that the temperature inside the wireless charging device 10 reaches a certain threshold, such as 40°C, the circuit board 800 controls the electromagnet 42 to be energized and controls the fan 400 to work. A repulsive force is generated between the electromagnet 42 and the magnetic body 41, so that the wireless charging device 10 changes from the first state to the second state and can dissipate heat.

[0070] 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 wireless charging device 10 can complete the charging in the first state, and the heat of the wireless charging device 10 and 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, so that the temperature of the wireless charging device 10 reaches the threshold, the wireless charging device 10 switches to the second state, and the fan 400 works, so that the heat of the wireless charging device 10 and 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 is lower than the threshold, the wireless charging device 10 can switch to the first state again. The way in which the wireless charging device 10 switches between the first state and the second state is the same as above, and will not be repeated here.

[0071] When the power of the contemporary charging device is relatively large, the charging power between the wireless charging device 10 and the device to be charged is relatively large. Similarly, the temperature sensor can be used to detect whether the temperature inside the wireless charging device 10 has reached a threshold, or the circuit board 800 can be used to detect whether the output power of the wireless charging device 10 has reached a threshold, so as to control the operation of the electromagnet 42 and the fan 400, and control the wireless charging device 10 to switch between the first state and the second state.

[0072] like Fig.10 and Fig.11 As shown, in one embodiment, the driving assembly 40 includes a motor 43 and a rack 44. One of the motor 43 and the rack 44 is connected to the fourth housing 900, and the other of the motor 43 and the rack 44 is connected to the second board 610. The output power of the wireless charging device 10 is detected by the circuit board 800, or the temperature inside the wireless charging device 10 is detected by the temperature sensor, so as to control the forward or reverse rotation of the motor 43, so that the wireless charging device 10 switches between the first state and the second state.

[0073] like Fig.12 As shown, in one embodiment, the wireless charging device 10 includes a light bar 71, which is fixed to the inner surface of the first side wall 120, or to the outer surface of the third side wall 720. When the wireless charging device 10 is in the second state, the light bar 71 is lit and can be used as a status indicator.

[0074] In one embodiment, a silicone pad is provided on one side of the fourth housing 900 facing away from the third housing 700, which may be in the shape of a strip or a sheet, etc., for supporting the entire wireless charging device 10. The wireless charging device 10 may also be provided with a USB port, etc.

[0075] 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.

[0076] 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, characterized in that: include: A first body, comprising a coil module and a fan, wherein the coil module and the fan are located in a first accommodation space inside the first body, the first body is provided with a second vent and a first vent communicating with the first accommodation space, the first body is used to place a device to be charged, and the first vent is opposite to an area of ​​the first body used to place the device to be charged; and A second body, stacked with the first body; The first body can move relative to the second body to form a channel or close the channel, and when the channel is formed, the fan works, and external air can flow through the channel, the first vent, the second vent, and the first accommodating space to perform heat exchange with the coil module; The first body is movable relative to the second body and has a first state and a second state; in the first state, one end of the first body close to the second body contacts the second body and closes the passage; in the second state, one end of the first body close to the second body is spaced from the second body and forms the passage; The first body is provided with a second accommodation space spaced apart from the first accommodation space, and the second body is located in the second accommodation space; The second vent is connected to the first accommodation space and the second accommodation space; In the second state, the fan is working, and the passage, the second accommodating space, the second vent, the first accommodating space, and the first vent can form an air flow passage so that the air inside the first accommodating space and the external air flow relative to each other.

2. The wireless charging device according to claim 1, characterized in that: The first body comprises a first shell and a second shell, the second shell is installed inside the first shell and forms the first accommodation space with the first shell, and a side of the second shell facing away from the first accommodation space and a part of the structure of the first shell form the second accommodation space; The second vent is located in the second shell, and the first vent is located in the first shell.

3. The wireless charging device according to claim 2, characterized in that: The first shell includes a first plate and a first side wall, the first side wall surrounds the first plate; the first vent is opened on the first plate; the second shell is installed on the first side wall; In the first state, the inner surface of the first side wall is attached to the second body; In the second state, the channel exists between the inner surface of the first side wall and the second body.

4. The wireless charging device according to claim 3, characterized in that: The outer surface of the first plate is provided with supporting elements.

5. The wireless charging device according to claim 2, characterized in that: The second shell includes a second plate and a second side wall, the second side wall surrounds the second plate; the second vent is opened in the second side wall; and the second side wall is installed on the first shell.

6. The wireless charging device according to claim 2, characterized in that: The fan is located on the side of the coil module facing the second shell; the first main body includes an air guide plate located in the first accommodating space, and the air guide plate is located on the side of the fan facing away from the coil module; the air guide plate covers the second shell.

7. The wireless charging device according to claim 6, characterized in that: The air guide plate is provided with a first through hole, and a second through hole is provided on a side of the fan facing the air guide plate, and the first through hole and the second through hole are connected; air from the second vent can pass through the first through hole and the second through hole and enter the fan.

8. The wireless charging device according to any one of claims 2 to 7, characterized in that: The first body includes a first shell and a second shell; the first shell includes a first side wall, and the second shell includes a second plate; The second body includes a third shell, and the third shell includes a third plate and a third side wall surrounding the third plate; In the first state, the second plate is attached to the third plate, and the first side wall is attached to the third side wall; In the second state, there is a gap between the second plate and the third plate, and the channel exists between the first side wall and the third side wall.

9. The wireless charging device according to claim 8, characterized in that: One of the first side wall and the third side wall is provided with a light bar, and in the second state, the light bar is lit.

10. The wireless charging device according to claim 8, characterized in that: The second body includes a fourth shell and a circuit board. The fourth shell covers the third shell to form a third accommodating space. The circuit board is located in the third accommodating space.

11. The wireless charging device according to claim 10, characterized in that: A silicone pad is provided on a side of the fourth shell facing away from the third shell.

12. The wireless charging device according to claim 10, characterized in that: There is a heat-conducting layer between the circuit board and the fourth shell; the material of the third shell is heat-insulating material.

13. The wireless charging device according to claim 10, characterized in that: A driving assembly is included, wherein the driving assembly is connected to the second plate and the second body, and the driving assembly can drive the first body to move relative to the second body.

14. The wireless charging device according to claim 13, characterized in that: The third shell includes an annular wall, and the annular wall, the fourth shell and the second plate together enclose a fourth accommodating space. The drive assembly is located in the fourth accommodating space, and one end of the drive assembly is connected to the fourth shell, and the other end is connected to the second plate.

15. The wireless charging device according to claim 14, characterized in that: The driving assembly includes a magnetic body and an electromagnet, one of which is connected to the fourth housing, and the other of which is connected to the second plate.

16. The wireless charging device according to claim 14, characterized in that: The driving assembly includes a motor and a rack, one of which is connected to the fourth housing, and the other of which is connected to the second plate.

17. The wireless charging device according to claim 14, characterized in that: The second shell includes a positioning sleeve, and the positioning sleeve is sleeved on the inner surface of the annular wall.

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