CN211908392U

CN211908392U - Wireless charging equipment

Info

Publication number: CN211908392U
Application number: CN202020080609.5U
Authority: CN
Inventors: 杨俊�
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2020-01-14
Filing date: 2020-01-14
Publication date: 2020-11-10
Anticipated expiration: 2030-01-14

Abstract

The application relates to a wireless charging device, including: the first main body comprises a coil module and a fan, the coil module and the fan are located in a first accommodating space, and the first main body is provided with a second ventilation opening and a first ventilation opening. 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 ventilation opening, the second ventilation opening and the first accommodating space to exchange heat with the coil module. The first body is movable relative to the second body to form or close the channel. For a device to be charged with less power, less heat is generated and the channel may be in a closed state. To the great equipment of waiting to charge of power, the heat that produces is more, and the passageway can be in the open mode, and the air in the first accommodation space can produce relative flow through passageway and first vent and the air of external world, takes away the heat of coil module.

Description

Wireless charging equipment

Technical Field

The application relates to the technical field of charging, in particular to wireless charging equipment.

Background

Traditional wireless charging equipment's radiating efficiency is lower, when giving the battery charging outfit and wirelessly charging, wireless charging outfit production of heat makes the battery charging outfit temperature rise.

SUMMERY OF THE UTILITY MODEL

The embodiment of the application provides a wireless charging device to solve the technical problem that the heat dissipation efficiency of the wireless charging device is low.

A wireless charging device, comprising:

the first main body comprises a coil module and a fan, the coil module and the fan are positioned in a first accommodating space in the first main body, and the first main body is provided with a second ventilation opening and a first ventilation opening which are communicated with the first accommodating space; and

a second body stacked with the first body;

the first body can move relative to the second body to form a passage or close the passage, and when the passage is formed, the fan operates, and external air can flow through the passage, the first ventilation opening, the second ventilation opening and the first accommodation space to exchange heat with the coil module.

Above-mentioned wireless charging equipment, the coil module is located the first accommodation space of first main part, and first vent has been seted up to first main part. The first body is movable relative to the second body to form a passage or close the passage. For a device to be charged with less power, less heat is generated and the channel may be in a closed state. For the equipment to be charged with higher power, the generated heat is more, the channel can be in an open state, and the air in the first accommodating space can flow relative to the air outside through the channel and the first ventilation opening, so that the heat generated by the coil module is brought out of the wireless charging equipment.

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

in the first state, one end of the first body near the second body contacts the second body and closes the channel;

in the second state, an end of the first body adjacent the second body is spaced from the second body and forms the channel.

In one embodiment, the first body is provided with a second accommodating space which is arranged at a distance from the first accommodating space, and the second body is positioned in the second accommodating space;

the first main body is provided with a second ventilation opening which is communicated with the first accommodating space and the second accommodating space;

in the second state, the fan operates, and the channel, the second accommodating space, the second ventilation opening, the first accommodating space and the first ventilation opening can form an airflow channel, so that air inside the first accommodating space and outside air flow relatively.

In one embodiment, the first body includes a first housing and a second housing, the second housing is mounted inside the first housing and forms the first accommodating space with the first housing, and a side of the second housing facing away from the first accommodating space forms the second accommodating space with a partial structure of the first housing;

the second ventilation opening is located in the second shell, and the first ventilation opening is located in the first shell.

In one embodiment, the first housing includes a first plate and a first sidewall enclosing the first plate; the first ventilation opening is formed in the first plate; the second shell is mounted on the first side wall;

in the first state, an inner surface of the first sidewall is fitted to the second body;

in the second state, the channel exists between the inner surface of the first sidewall and the second body.

In one embodiment, the outer surface of the first plate is provided with a support element.

In one embodiment, the second housing includes a second plate and a second sidewall enclosing the second plate; the second ventilation opening is formed in the second side wall; the second side wall is mounted to the first housing.

In one embodiment, the fan is positioned on one side of the coil module facing the second shell; the first main body comprises an air deflector positioned in the first accommodating space, and the air deflector is positioned on one side of the fan, which is back to the coil module; the second shell is covered by the air deflector.

In one embodiment, the air deflector is provided with a first through hole, one side of the fan facing the air deflector is provided with a second through hole, and the first through hole is communicated with the second through hole; the air at the second ventilation opening can pass through the first through hole and the second through hole to enter the fan.

In one embodiment, the first body comprises a first housing and a second housing; the first housing includes a first sidewall and the second housing includes a second plate;

the second body comprises a third shell, and the third shell comprises 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, a gap exists between the second plate and the third plate, and the passage exists between the first sidewall and the third sidewall.

In one embodiment, 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 lighted.

In one embodiment, the second body includes a fourth case covering the third case to form a third accommodation space, and a circuit board located in the third accommodation space.

In one embodiment, a silicone pad is disposed on a side of the fourth housing facing away from the third housing.

In one embodiment, there is a thermally conductive layer between the circuit board and the fourth housing; the third shell is made of heat insulation materials.

In one embodiment, a drive assembly is included and is coupled to the second plate and the second body, the drive assembly being capable of driving the first body to move relative to the second body.

In one embodiment, the third housing includes a ring wall, the fourth housing and the second plate enclose together to form a fourth accommodating space, the driving assembly is located in the fourth accommodating space, and one end of the driving assembly is connected to the fourth housing, and the other end of the driving assembly is connected to the second plate.

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.

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.

In one embodiment, the second housing includes a positioning sleeve, and the positioning sleeve is sleeved on the inner surface of the annular wall.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a perspective view of a wireless charging device according to an embodiment;

fig. 2 is a cross-sectional view of the wireless charging device shown in fig. 1, wherein the wireless charging device is in a first state;

fig. 3 is a cross-sectional view of the wireless charging device shown in fig. 1, wherein the wireless charging device is in a second state;

fig. 4 is an exploded view of the wireless charging device shown in fig. 1;

fig. 5 is an exploded view of the wireless charging device of fig. 1 from another angle;

fig. 6 is an exploded view of a first body of the wireless charging device shown in fig. 4;

FIG. 7 is an assembly view of the first body of FIG. 6 with the first housing sectioned;

fig. 8 is an exploded view of a second body of the wireless charging device shown in fig. 4;

FIG. 9 is a sectional view of the second body shown in FIG. 8 in an assembled state;

fig. 10 is a cross-sectional view of the wireless charging device of fig. 1 in another embodiment;

fig. 11 is a perspective view of a motor and a rack in the wireless charging device shown in fig. 10;

fig. 12 is a cross-sectional view of still another embodiment of the wireless charging device shown in fig. 1.

Detailed Description

To facilitate an understanding of the present application, the present application will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present application are illustrated in the accompanying drawings. This application may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

As shown in fig. 1 to 3, in an embodiment, a wireless charging device 10 is provided, the wireless charging device 10 including a first body 20 and a second body 30 which are stacked. The first body 20 is provided therein with a first accommodating space 60, and the first accommodating space 60 is provided therein with components such as a coil module 200 and a fan 400. The first body 20 is opened with a second air vent 621 and a first air 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 an electric signal can be transmitted between the coil inside the device to be charged and 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 and a tablet personal computer. The first body 20 can move relative to the second body 30 to form the channel 50 or close the channel 50, and when the channel 50 is formed, the fan 400 is operated, and external air can flow through the channel 50, the first ventilation opening 111, the second ventilation opening 621 and the first receiving space 60 to exchange heat with the coil module 200 to take away heat of the coil module 200 and other heat in the first receiving space 60, so that the first body 20 is cooled.

The first body 20 is movable relative to the second body 30 such 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 passage 50 to block the communication between the second ventilation opening 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 a channel 50, and the channel 50, the second ventilation opening 621, the first accommodating space 60 and the first ventilation opening 111 can form an airflow channel, i.e., a heat dissipation air duct, so that air in the first accommodating space 60 flows relative to outside air to dissipate heat of the wireless charging device 10.

In one embodiment, the external air can flow into the second ventilation hole 621 from the channel 50 to enter the first accommodating space 60, and flow out of the first ventilation hole 111 to carry away the heat of the coil module 200. In another embodiment, the external air can enter the first accommodating space 60 through the first ventilation opening 111, flow out of the first accommodating space 60 through the second ventilation opening 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.

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 operates, and outside air enters the first accommodating space from the first ventilation opening 111, flows through the coil module 200, flows out of the first accommodating space 60 from the second ventilation opening 621, and flows out of the wireless charging device 10 from the channel 50, so as to take away heat inside the first accommodating space 60.

When the power of the device to be charged is small, the first and

second bodies

20 and 30 are in the first state as shown in fig. 2. When the power of the device to be charged is large, as shown in fig. 3, 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, a channel 50 is formed between the first body 20 and the second body 30, and outside air can enter the inside of the wireless charging device 10 through the channel 50 between the first body 20 and the second body 30 and take away heat of the device to be charged and the wireless charging device 10 as the air flows out of the wireless charging device 10.

As shown in fig. 4 and 5, in an embodiment, in the thickness direction of the wireless charging apparatus 10, the wireless charging apparatus 10 includes, in order, a first housing 100, a coil module 200, a bracket 300, a fan 400, a wind deflector 500, a second housing 600, a third housing 700, a circuit board 800, and a fourth housing 900. Wherein a driving assembly 40 is disposed between the second casing 600 and the third casing 700, and the driving assembly 40 can drive the second casing 600 away from the third casing 700.

As shown in fig. 6 and 7, in an embodiment, the first case 100, the coil module 200, the bracket 300, the fan 400, the air deflector 500, and the second case 600 together form the first body 20. As shown in fig. 8 and 9, the third case 700, the circuit board 800, and the fourth case 900 together form the second body 30. The driving assembly 40 is located between the first body 20 and the second body 30 and is capable of driving the first body 20 away from the second body 30.

As shown in fig. 6 and 7, in an embodiment, the first casing 100 includes a first plate 110 and a first sidewall 120, and the first sidewall 120 extends from an edge of the first plate 110, so that the first casing 100 is an open box-shaped structure. It is understood that the open box shape may be an open circular box shape structure, an open square box shape structure, and an open conical box shape structure, and is not limited thereto. In this embodiment, the first plate 110 is a circular plate, and the first sidewall 120 is inclined with respect to the first plate 110, so that the first case 100 is an open conical box-shaped structure. The first plate 110 is provided with a plurality of first ventilation openings 111, and air inside the wireless charging device 10 can flow out through the first ventilation openings 111, so that heat inside the wireless charging device 10 is taken away. The first plate 110 and the first sidewall 120 may be an integrally formed structure.

In an embodiment, a supporting element 112 is disposed on a side of the first plate 110 facing away from the first sidewall 120, and when the device to be charged is charged, the device to be charged may be placed on the supporting element 112, so that a certain distance exists between the device to be charged and the first ventilation opening 111, the device to be charged is prevented from covering the first ventilation opening 111, and air flowing out of the first ventilation opening 111 can flow through a surface of the device to be charged and take away heat of the device to be charged, so that the device to be charged is cooled. The material of the supporting element 112 may be silicone.

The second case 600 includes a second plate 610 and a second sidewall 620, and the second sidewall 620 encloses the second plate 610. In one embodiment, the second sidewall 620 and the second plate 610 are integrally formed, and in another embodiment, the second sidewall 620 and the second plate 610 are separately formed and then assembled. The second casing 600 has an open box-shaped structure, and may have an open circular box-shaped structure, an open square box-shaped structure, and an open conical structure, and is not limited thereto. In this embodiment, the second plate 610 is a circular plate, and the second sidewall 620 is inclined with respect to the second plate 610, so that the second case 600 has a conical open box-like structure. The second sidewall 620 is provided with a plurality of second vents 621, and the second vents 621 are uniformly distributed on the circumference of the second sidewall 620. After the passage 50 exists between the first body 20 and the second body 30, the external air can enter the first body 20 through the second ventilation hole 621, take away the heat of the coil module 200, and flow out of the first body 20 through the first ventilation hole 111.

As shown in fig. 2 and 7, in the assembled state of the first body 20, the openings of the first casing 100 and the second casing 600 are oppositely disposed, 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, i.e., the second casing 600 is located inside the first casing 100, such that the first accommodating space 60 is formed between the first casing 100 and the second casing 600, and the side of the first casing 120 and the second casing 600 facing away from the first plate 110 forms the second accommodating space 70 with an opening. The coil module 200, the bracket 300, the fan 400, and the guide plate are sequentially disposed in the first receiving space 60, the coil module 200 is adjacent to the first plate 110, and the guide plate is adjacent to the first sidewall 120. The fan 400 is located on a side of the coil module 200 facing the second casing 600, and the air deflector 500 is located on a side of the fan 400 facing away from the coil module 200. The support 300 is used for supporting the coil module 200. In one embodiment, the coil module 200 includes a coil 210 and a magnetic shield 220, the magnetic shield 220 is fixed to the bracket 300, and the coil 210 is located on a side of the magnetic shield 220 opposite to the bracket 300. The second body 30 is disposed in the second accommodating space 70 and is non-fixedly connected with the first body 20, such that the first body 20 can move relative to the second body 30 to have a first state and a second state.

In one embodiment, the air guiding plate 500 covers the second sidewall 620 to prevent the air flowing through the second air vent 621 from flowing directly to the first air vent 111 without flowing through the coil module 200. The air deflector 500 is provided with a first through hole 510, and the air flowing through the second air vent 621 can enter the second casing 600 and flow to the first through hole 510. The fan 400 is a centrifugal fan, and a second through hole 410 is formed in one side of the fan 400 facing the air guide plate 500, and the first through hole 510 is communicated with the second through hole 410. In an embodiment, the first through hole 510 and the second through hole 410 are coaxially disposed, and the diameters of the first through hole 510 and the second through hole 410 may 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, first through-hole 510 and second through-hole 410 may not be coaxial. The side wall of the fan 400 is opened with a plurality of side vents 420, for example, 4 side vents 420. When the fan 400 operates, the external air enters the first accommodating space 60 through the second ventilation hole 621, first enters the second casing 600, flows through the first through hole 510 and the second through hole 410 into the fan 400, flows out from the side air hole 420, flows through the coil module 200, flows out of the wireless charging device 10 through the first ventilation hole 111, and takes 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.

As shown in fig. 8 and 9, in an embodiment, the second body 30 includes a third case 700, a fourth case 900, and a circuit board 800. The third case 700 includes an annular wall 730, a third plate 710, and a third sidewall 720 enclosing the third plate 710. The third plate 710 is an annular plate, the annular wall 730 is connected to an inner ring of the third plate 710 and is perpendicular to the third plate 710, and the third sidewall 720 is connected to an outer ring of the third plate 710 and is disposed obliquely to 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 case 900 is mounted to a side of the third sidewall 720 facing away from the third plate 710 such that the third case 700 and the fourth case 900 form a third receiving space 80 and the circuit board 800 is located in the third receiving space 80. In one embodiment, a heat conducting layer is disposed between the circuit board 800 and the fourth housing 900, and the heat conducting layer is made of a heat conducting material, such as silicone grease in mud shape. It is understood that, if the circuit board 800 is directly attached to the fourth casing 900, the circuit board 800 and the fourth casing 900 are not necessarily both planar, and the contact area between the circuit board 800 and the fourth casing 900 is small, and the thermal conductivity is small. After the muddy heat conducting layer is arranged between the circuit board 800 and the fourth shell 900, the contact area between the circuit board and the heat conducting layer is increased, and the heat conducting coefficient of the heat conducting layer is large, so that heat generated by the circuit board 800 in the working process can be quickly transferred to the fourth shell 900, and then the heat can be transferred to the environment around the second main body 30.

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

As shown in fig. 2 and 3, in an embodiment, a driving assembly 40 is disposed 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 attached, and the inner surface of the first sidewall 120 and the outer surface of the third sidewall 720 are attached. The external air cannot enter the first receiving space 60. In the second state, the first body 20 is raised with respect to the second body 30, a gap exists between the second plate 610 and the third plate 710, and the passage 50 exists between the first sidewall 120 and the third sidewall 720. The external air can enter the second accommodating space 70 through the channel 50, under the driving of the fan 400, the external air sequentially passes through the second air vent 621 and enters the first accommodating space 60, then sequentially passes through the first through hole 510, the second through hole 410 and the side air vent 420, and flows through the surface of the coil module 200, flows out of the first air vent 111 after taking away the heat of the coil module 200, and the channel 50, the second accommodating space 70, the second air vent 621, the first accommodating space 60 and the first air vent 111 form an air flow channel, namely a heat dissipation air channel.

In another embodiment, in the first state, the end surface of the first sidewall 120 away from the first plate 110 is attached to the surface of the third plate 710, which can be understood as that the first body 20 "stands" on the third plate 710. Ideally, there is no gap between the end of the first sidewall 120 and the surface of the third plate 710, and external air cannot enter the first receiving space 60 therethrough. In the second state, the first body 20 is lifted relative to the second body 30, so that the passage 50 exists between the end of the first sidewall 120 and the third plate 710, the first accommodating space 60 and the second accommodating space 70 are communicated, and external air can enter the first accommodating space 60 from the passage 50, so that heat of the coil module 200 is taken away by the fan 400.

As shown in fig. 2 and 3, in an embodiment, the annular wall 730, the fourth housing 900 and the second plate 610 enclose together to form the fourth accommodating space 90. The second casing 600 comprises a positioning sleeve 622, the positioning sleeve 622 being located on a side of the second plate 610 facing away from the second side wall 620. The positioning sleeve 622 and the annular wall 730 have the same shape, and in the first state, the positioning sleeve 622 is located in the fourth accommodating space 90, and the outer surface of the positioning sleeve 622 fits the inner surface of the annular wall 730. When the first body 20 moves relative to the second body 30, the engagement 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 in the thickness direction of the wireless charging device 10 and cannot move 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 receiving space 60 to facilitate installation of the driving assembly 40.

As shown in fig. 2 and 3, in one embodiment, the driving assembly 40 includes a magnetic body 41 and an electromagnet 42, one of the magnetic body 41 and the electromagnet 42 is connected to the fourth housing 900, and the other of the magnetic body 41 and the electromagnet 42 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, and 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 operate. When the electromagnet 42 is energized, a repulsive force is generated between the electromagnet and the magnetic body 41, and the second plate 610 is driven 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 apparatus 10 is changed from the first state to the second state. The external air can enter the first accommodating space 60 from the second ventilation opening 621 and take away the heat inside the first accommodating space 60. And the air flows out of the first ventilation opening 111 and can flow through the surface of the device to be charged to take away the heat on the surface of the device to be charged.

In another embodiment, a temperature sensor is disposed inside the wireless charging device 10, and after the temperature sensor detects that the temperature inside the wireless charging device 10 reaches a certain threshold, for example, 40 ℃, the circuit board 800 controls the electromagnet 42 to be powered on and controls the fan 400 to operate. A repulsive force is generated between the electromagnet 42 and the magnetic body 41, so that the wireless charging apparatus 10 is transitioned from the first state to the second state and heat can be dissipated.

It can be understood 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 generated heat is small, then the wireless charging device 10 is in the first state to complete charging, and the heat of the wireless charging device 10 and the device to be charged can be dissipated by themselves. 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 value, the wireless charging device 10 is switched to the second state, and the fan 400 operates, 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 understood that when the temperature of the wireless charging device 10 is below the threshold, the wireless charging device 10 may again switch to the first state. The mode of detecting the output power of the wireless charging device 10 through the circuit board 800 to control the electromagnet and the fan 400 is the same as the mode of switching the wireless charging device 10 between the first state and the second state, and is not described again here.

When the power of the charging device of the generation is large, the charging power between the wireless charging device 10 and the device to be charged is large, and it is also possible to detect whether the temperature inside the wireless charging device 10 reaches the threshold value by the temperature sensor, or detect whether the output power of the wireless charging device 10 reaches the threshold value by the circuit board 800, to control the operation of the electromagnet 42 and the fan 400, to control the wireless charging device 10 to switch between the first state and the second state.

As shown in fig. 10 and 11, in one embodiment, the drive assembly 40 includes a motor 43 and a rack 44. One of the motor 43 and the rack 44 is coupled to the fourth housing 900, and the other of the motor 43 and the rack 44 is coupled to the second plate 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 that the motor 43 is controlled to be in forward or reverse rotation, so that the wireless charging device 10 is switched between the first state and the second state.

As shown in fig. 12, in an embodiment, the wireless charging device 10 includes a light bar 71, and the light bar 71 is fixed on an inner surface of the first sidewall 120 or an outer surface of the third sidewall 720, and when the wireless charging device 10 is in the second state, the light bar 71 is in an illuminated state and can be used as a status indicator light.

In an embodiment, a silicone pad, which may be in a shape of a strip or a sheet, is disposed on a side of the fourth casing 900 facing away from the third casing 700, and is used for supporting the whole wireless charging apparatus 10. A USB socket or the like may also be provided on the wireless charging device 10.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the claims. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. A wireless charging device, comprising:

a second body stacked with the first body;

2. The wireless charging apparatus of claim 1, wherein the first body is movable relative to the second body to have a first state and a second state;

3. The wireless charging device according to claim 2, wherein the first body is provided with a second accommodating space provided at a distance from the first accommodating space, the second body being located in the second accommodating space;

4. The wireless charging apparatus according to claim 3, wherein the first body includes a first housing and a second housing, the second housing is mounted inside the first housing and forms the first accommodating space with the first housing, and a side of the second housing facing away from the first accommodating space forms the second accommodating space with a partial structure of the first housing;

5. The wireless charging device of claim 4, wherein the first housing comprises a first plate and a first sidewall, the first sidewall enclosing the first plate; the first ventilation opening is formed in the first plate; the second shell is mounted on the first side wall;

6. The wireless charging apparatus of claim 5, wherein an outer surface of the first plate is provided with a support element.

7. The wireless charging device of claim 4, wherein the second housing comprises a second plate and a second sidewall, the second sidewall enclosing the second plate; the second ventilation opening is formed in the second side wall; the second side wall is mounted to the first housing.

8. The wireless charging device of claim 4, wherein the fan is located on a side of the coil module facing the second housing; the first main body comprises an air deflector positioned in the first accommodating space, and the air deflector is positioned on one side of the fan, which is back to the coil module; the second shell is covered by the air deflector.

9. The wireless charging device of claim 8, wherein the air deflector is provided with a first through hole, one side of the fan facing the air deflector is provided with a second through hole, and the first through hole is communicated with the second through hole; the air at the second ventilation opening can pass through the first through hole and the second through hole to enter the fan.

10. The wireless charging apparatus according to any one of claims 4 to 9, wherein the first housing comprises a first side wall, and the second housing comprises a second plate;

11. The wireless charging device of claim 10, wherein 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 illuminated.

12. The wireless charging apparatus according to claim 10, wherein the second body includes a fourth case covering the third case to form a third accommodation space, and a circuit board located in the third accommodation space.

13. The wireless charging device of claim 12, wherein a silicone pad is disposed on a side of the fourth housing facing away from the third housing.

14. The wireless charging apparatus of claim 12, wherein there is a thermally conductive layer between the circuit board and the fourth housing; the third shell is made of heat insulation materials.

15. The wireless charging device of claim 12, comprising a drive assembly connected to the second plate and the second body, the drive assembly capable of driving the first body to move relative to the second body.

16. The wireless charging device of claim 15, wherein the third housing comprises a circular wall, the fourth housing and the second plate together enclose a fourth accommodating space, the driving assembly is located in the fourth accommodating space, and one end of the driving assembly is connected to the fourth housing while the other end is connected to the second plate.

17. The wireless charging apparatus according to claim 16, wherein 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.

18. The wireless charging apparatus of claim 16, wherein the drive assembly comprises a motor and a rack, one of the motor and the rack being coupled to the fourth housing, the other of the motor and the rack being coupled to the second plate.

19. The wireless charging device of claim 16, wherein the second housing comprises a positioning sleeve that is sleeved on an inner surface of the annular wall.