Wireless charging device

Abstract

The utility model provides a wireless charging device which comprises the components of a main housing which comprises a main mounting cavity and a first accommodating part, and the main mounting cavity is internally provided with a main control circuit board and a first contact sheet group; the first charging assembly comprises a first support and a first wireless charging module arranged on the first support, and the first support is arranged on the upper surface of the main shell through a first rotating shaft; the second charging assembly comprises a second support, a second wireless charging module and a second contact piece group, the second wireless charging module and the second contact piece group are arranged on the second support, and the second support is arranged in the first containing part through a first sliding assembly; the second contact piece group is located on the inner side of the second support, and when the second support is located at the sliding starting point position, the second contact piece group is separated from the first contact piece group; when the second support is located at the sliding final position, the second contact piece set is electrically connected with the first contact piece set. The wireless charging device can wirelessly charge a plurality of electronic devices at the same time.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of electronic product charging, more specifically, to a wireless charging device. BACKGROUND

[0002] Wireless charging is a technology that uses electromagnetic induction principles to charge compatible devices without physical connection. With the development of technology, wireless charging has become more and more popular, especially in smart phones, smart watches and other portable electronic devices.

[0003] However, the existing wireless charger can only charge a single type of electronic device. If multiple electronic devices (such as mobile phones, watches, and earphones) need to be charged, multiple charging devices must be configured to meet the charging needs, which is inconvenient to use. SUMMARY

[0004] The technical problem to be solved by the utility model is to provide a new wireless charging device for the problem that the above-mentioned wireless charger can only charge a single electronic device.

[0005] The technical solution of the utility model to solve the above-mentioned technical problem is to provide a wireless charging device, comprising:

[0006] A main housing, the main housing comprises a main mounting cavity and a first receiving part, the main mounting cavity is provided with a main control circuit board and a first contact group electrically connected with the main control circuit board, and at least a part of the first contact group extends to the first receiving part;

[0007] A first charging assembly, comprising a first support and a first wireless charging module, the first support is installed on the upper surface of the main housing through a first rotating shaft, and the first rotating shaft is parallel to the upper surface of the main housing; the first wireless charging module is installed on the first support and is electrically connected with the main control circuit board through a wire;

[0008] A second charging assembly, comprising a second support, a second wireless charging module and a second contact group, the second support is installed on the first receiving part of the main housing through a first sliding assembly and is accommodated in or protruded from the main housing by sliding in the first receiving part; the second wireless charging module and the second contact group are respectively installed on the second support, and the second wireless charging module is electrically connected with the second contact group;

[0009] The second contact group is located on the inner side of the second support, and when the second support is at the sliding starting point position, the second wireless charging module is accommodated in the main housing, and the second contact group is separated from the first contact group; when the second support is at the sliding end position, the second wireless charging module is exposed from the main housing, and the second contact group is electrically connected with the first contact group.

[0010] As a further improvement of the utility model, the main shell comprises a third contact patch group and a second receiving part, the third contact patch group is electrically connected with the main control circuit board, and at least a part of the third contact patch group extends to the second receiving part;

[0011] The wireless charging device comprises a third charging assembly, the third charging assembly comprises a third support, a third wireless charging module and a fourth contact patch group, the third support is arranged on the second receiving part of the main shell through a second sliding assembly and is received in the main shell or protrudes from the main shell by sliding in the second receiving part, the third wireless charging module and the fourth contact patch group are arranged on the third support, and the third wireless charging module is electrically connected with the fourth contact patch group.

[0012] The fourth contact patch group is located on the inner side of the third support, when the third support is located at the sliding starting point, the third wireless charging module is received in the main shell, and the fourth contact patch group is separated from the third contact patch group; when the third support is located at the sliding end point, the third wireless charging module is exposed from the main shell, and the fourth contact patch group is electrically connected with the third contact patch group.

[0013] As a further improvement of the utility model, the first receiving part and the second receiving part are located on the lower surface of the main shell, the second support arranged on the first receiving part and the third support arranged on the second receiving part are located in the same plane, and the sliding direction of the second support and the third support from the sliding starting point to the sliding end point is opposite.

[0014] As a further improvement of the utility model, the lower surface of the main shell has a straight slot, the first sliding assembly comprises a first guide rod located in the straight slot and a first sliding block located on the second support and having a first through hole, and when the second support is assembled on the main shell, the first guide rod passes through the first through hole; the second sliding assembly comprises a second guide rod located in the straight slot and a second sliding block located on the third support and having a second through hole, and when the third support is assembled on the main shell, the second guide rod passes through the second through hole.

[0015] As a further improvement of the utility model, the upper surface of the main shell has a first recess matched with the first support, the first rotating shaft is arranged on the edge of the first recess, and the first support is received in the first recess or protrudes above the main shell by rotating around the first rotating shaft.

[0016] As a further improvement of the utility model, the first support includes a first module shell, a connecting part and a third slide rod, the first wireless charging module is arranged in the first module shell, the connecting part is assembled to the main shell through a first rotating shaft, the third slide rod is perpendicularly connected to the connecting part, and the first module shell is slidably arranged on the third slide rod, and the wires connected to the first wireless charging module pass through the third slide rod and the connecting part and are electrically connected to the main control circuit board in the main mounting cavity.

[0017] As a further improvement of the utility model, the first recess extends to the side wall of the main shell which is perpendicular to the first direction, and the first rotating shaft is arranged in the part of the first recess extending to the side wall, the second support slides in the first containing part along the second direction, and when the second support is in the sliding end position, the second wireless charging module is exposed to the side wall of the main shell which is perpendicular to the second direction, and the second direction is perpendicular to the first direction.

[0018] As a further improvement of the utility model, the second support includes a first sub-shell and a second module shell, and the second wireless charging module is arranged in the second module shell, the upper surface of the first sub-shell has a second recess corresponding to the second module shell, the second module shell is arranged to the first sub-shell through a second rotating shaft arranged in the second recess, and is arranged in the second recess by rotating around the second rotating shaft;

[0019] The third support includes a third sub-shell, and the upper surface of the third sub-shell has a third recess, and the third wireless charging module is located at the bottom of the third recess.

[0020] As a further improvement of the utility model, the main shell is provided with a first magnetic block, and the first magnetic block is arranged adjacent to the first contact group; the second support has a second magnetic block, and the second magnetic block is arranged adjacent to the second contact group;

[0021] The first contact group includes a plurality of elastic contacts, the second contact group includes a plurality of fixed contacts, and when the second support is in the sliding end position, the fixed contacts push and press the elastic contacts and make the elastic contacts elastically deform, the first magnetic block and the second magnetic block are attracted to each other and keep the second support in the sliding end position.

[0022] As a further improvement of the utility model, the main shell is a cuboid as a whole, the length of the main shell is greater than the width of the main shell, and the width of the main shell is more than 3 times the height of the main shell.

[0023] The utility model discloses the following technical effects have: through a plurality of support respectively bear a plurality of wireless charging module, and by the main control circuit board in the main casing power supply for a plurality of wireless charging module, can simultaneously for a plurality of electronic equipment wireless charging. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 It is the structural schematic diagram of wireless charging device provided by the utility model embodiment.

[0025] Figure 2 It is the schematic diagram of wireless charging device in the first charging subassembly, second charging subassembly and third charging subassembly are all in working condition.

[0026] Figure 3 It is the schematic diagram of wireless charging device in the first charging subassembly and second charging subassembly are in working condition.

[0027] Figure 4 It is the schematic diagram of wireless charging device in the second charging subassembly and third charging subassembly are in working condition.

[0028] Figure 5 It is the schematic diagram of third charging subassembly in wireless charging device provided by the utility model embodiment.

[0029] Figure 6 It is the schematic diagram of the second containing portion of main casing in wireless charging device provided by the utility model embodiment.

[0030] Figure 7 It is the exploded structural schematic diagram of third charging module assembly to main casing in wireless charging device provided by the utility model embodiment.

[0031] Figure 8 It is Figure 1 The local amplification structural schematic diagram of A part in. DETAILED DESCRIPTION

[0032] In order to make the purpose, technical scheme and advantage of the utility model more clearly, the following combines the drawings and embodiment, and further detailedly explains the utility model. It should be understood that the specific embodiment described here is only used to explain the utility model, and is not used to limit the utility model.

[0033] As Figure 1As shown is a structure schematic view of the wireless charging device provided by the embodiment of the utility model, the wireless charging device can simultaneously carry out wireless charging for mobile phone, smart watch and the like with wireless charging function. The wireless charging device of the embodiment comprises a main shell 10, a first charging assembly 21 and a second charging assembly, wherein the first charging assembly 21 and the second charging assembly are respectively arranged on the main shell 10, and the first charging assembly 21 can carry out wireless charging for mobile phone with wireless charging function, and the second charging assembly can charge watch with wireless charging function. In actual application, the second charging assembly can also charge other electronic products with wireless charging function, such as earphone and the like.

[0034] The main shell 10 can be made of metal, engineering plastic and the like hard material, and the main shell 10 comprises a main mounting cavity and a first containing part. The main mounting cavity is internally arranged with a main control circuit board and a first contact group 12, the first contact group 12 is electrically connected with the main control circuit board, and at least a part of the first contact group 12 extends to the first containing part, as shown. Figure 6 Specifically, the main mounting cavity can be located between the top plate and the bottom plate of the main shell 10 and relatively closed, and the first containing part can be located between the top plate and the bottom plate of the main shell 10, or the first containing part can also be located below the bottom plate of the main shell 10 (located on the lower surface of the main shell 10). The main control circuit board can be composed of a printed circuit board (PCB) integrated with a voltage conversion circuit (such as a direct current voltage conversion circuit, a filter circuit and the like), which can convert the input direct current into alternating current output. In actual application, the main control circuit board can adopt the conventional scheme in the art, which will not be described here.

[0035] As shown in combination with Figure 2 、 Figure 3 The first charging assembly 21 comprises a first support and a first wireless charging module 22, wherein the first support is arranged on the upper surface of the main shell 10 through a first rotating shaft, and the first wireless charging module 22 is arranged on the first support and electrically connected with the main control circuit board in the main mounting cavity of the main shell 10 through a wire. The first wireless charging module 22 comprises a coil, which generates an alternating magnetic field when input alternating current is generated, so that the coil in the corresponding electronic equipment can generate induced current to realize wireless charging.

[0036] The first rotation axis is parallel to the upper surface of the main shell 10, that is, the first support can be rotated to be attached to or protrude from the upper surface of the main shell 10 by rotating around the first rotation axis, and accordingly, the first wireless charging module 22 rotates with the first support, so that the electronic device can be placed flat on the upper surface of the main shell 10 for wireless charging, or can be charged vertically, which is convenient for use during charging (for example, charging while watching a mobile phone). In particular, a limiting structure can be added to the first support or the main shell 10 to limit the angle a of the first support when it is raised to be less than 80°; in addition, a magnetic attraction member can be provided on the first support to prevent the electronic device from falling off when the first support is raised. In actual application, the first wireless charging module 22 can adopt the conventional technology in the art, which will not be described here.

[0037] The second charging assembly includes a second support, a second wireless charging module 32, and a second contact group. The second support is installed on the first receiving portion of the main shell 10 through the first sliding assembly and is received in or protrudes from the main shell 10 by sliding in the first receiving portion. The second wireless charging module 32 and the second contact group are respectively installed on the second support, and the second wireless charging module 32 is electrically connected to the second contact group. The second wireless charging module 32 also includes a coil that generates an alternating magnetic field when an alternating current is input, so that the coil in the corresponding electronic device can generate an induced current to achieve wireless charging.

[0038] The second contact group is located on the inner side of the second support, and when the second support is in the sliding starting position, the second wireless charging module 32 is received in the main shell 10, and the second contact group is separated from the first contact group 12; when the second support is in the sliding end position, the second wireless charging module 32 is exposed from the main shell, and the second contact group is electrically connected to the first contact group 12. That is, when the second support is received in the first receiving portion of the main shell 10 (for example, the second charging assembly is retracted below the main shell 10), the first contact group 12 is not electrically connected to the second contact group, so that the main control circuit board in the main shell 10 does not supply power to the second wireless charging module 32. Only when the second support is completely pulled out of the main shell 10, the main control circuit board supplies power to the second wireless charging module.

[0039] The wireless charging device can simultaneously perform wireless charging for multiple electronic devices. Moreover, since the second contact group is located on the inner side of the second support, the main control circuit board supplies power to the second wireless charging module 32 only when the second support is completely extracted from the main shell 10 (i.e., the second wireless charging module 32 is exposed from the main shell 10), thereby avoiding the second wireless charging module 32 from being powered when the second support is accommodated in the main shell 10 and affecting the magnetic field of the first wireless charging module 22 (e.g., affecting the charging of the mobile phone by the first wireless charging module 22).

[0040] In combination Figure 2 , Figures 4-8 As shown in FIG. 1, in one embodiment of the present application, the main shell 10 further includes a third contact group 13 and a second accommodation portion. The third contact group 13 is electrically connected to the main control circuit board in the main mounting cavity of the main shell 10, and at least a part of the third contact group 13 extends to the second accommodation portion. The second accommodation portion can be located between the top plate and the bottom plate of the main shell 10, or the second accommodation portion can be located below the bottom plate of the main shell 10 (on the lower surface of the main shell 10).

[0041] Correspondingly, the wireless charging device includes a third charging assembly. The third charging assembly can be used to charge electronic devices such as wireless earphones, and the third charging assembly includes a third support, a third wireless charging module 42, and a fourth contact group 43. The third support is installed in the second accommodation portion of the main shell 10 through the second sliding assembly and is accommodated in or protrudes from the main shell 10 by sliding in the second accommodation portion. The third wireless charging module 42 and the fourth contact group 43 are respectively installed on the third support, and the third wireless charging module 42 is electrically connected to the fourth contact group 43. The third wireless charging module 42 also includes a coil that generates an alternating magnetic field when an alternating current is input, so that the coil in the corresponding electronic device can generate an induced current to achieve wireless charging.

[0042] The fourth contact group 43 is located at the inner side of the third support, and when the third support is at the sliding starting position, the third wireless charging module 42 is accommodated in the main shell 10, and the fourth contact group 43 is separated from the third contact group 13; when the third support is at the sliding terminal position, the third wireless charging module 42 is exposed from the main shell 10, and the fourth contact group 43 is electrically connected with the third contact group 13. That is to say, when the third support is accommodated in the second accommodation part of the main shell 10 (for example, the third charging assembly is retracted below the main shell 10), the third contact group 13 is not electrically connected with the fourth contact group 43, so that the main control circuit board in the main shell 10 does not supply power to the third wireless charging module 42. Only when the third support is completely pulled out of the main shell 10, the main control circuit board supplies power to the third wireless charging module. In this way, the third wireless charging module 42 can be prevented from being powered when the third support is accommodated in the main shell 10, and the magnetic field of the first wireless charging module 22 is affected (for example, the charging of the mobile phone by the first wireless charging module 22 is affected).

[0043] In an embodiment of the present application, the first accommodation part and the second accommodation part are both located on the lower surface of the main shell 10, and the second support installed to the first accommodation part and the third support installed to the second accommodation part are located in the same plane, and the sliding starting point to the sliding terminal point of the second support and the third support are opposite. That is, the lower surface of the second charging assembly and the lower surface of the third charging assembly constitute the lower surface of the entire wireless charging device. Through the structure, the entire wireless charging device can have a smaller thickness, which is beneficial to the miniaturization of the wireless charging device, thereby facilitating carrying.

[0044] In combination with Figures 4-6 In an embodiment of the present application, the lower surface of the main shell 10 has a straight slot 14, and correspondingly, the first sliding assembly includes a first guide rod 15 located in the straight slot 14 and a first sliding block (which can be a shaft sleeve or a linear bearing) located on the second support and having a first through hole, and when the second support is assembled to the main shell 10, the first guide rod 15 passes through the first through hole. Similarly, the second sliding assembly includes a second guide rod 16 located in the straight slot 14 and a second sliding block (which can be a shaft sleeve or a linear bearing) located on the third support and having a second through hole 412, and when the third support is assembled to the main shell 10, the second guide rod 16 passes through the second through hole 412. Through the above structure, the sliding of the second charging assembly and the third charging assembly can be realized while further reducing the thickness of the wireless charging device.

[0045] In an embodiment of the utility model, the upper surface of the main casing 10 has a first groove 11 matched with the first support, the first rotating shaft is arranged at the edge of the first groove 11, and the first support is accommodated in the first groove by rotating around the first rotating shaft (when the first support is accommodated in the first groove, part of the first support can still protrude from the upper surface of the main casing 10) or protrude above the main casing 10 (so that the first wireless charging module 22 is inclined). Through the structure, the thickness of the wireless charging device in the non-use state (or charging the mobile phone in the non-use state) is reduced.

[0046] In combination Figure 2 , Figure 3 As shown in the utility model, in an embodiment of the utility model, the first support includes a first module casing 211, a connecting part 212 and a third sliding rod 213, the first wireless charging module 22 is arranged in the first module casing 211, the connecting part 212 is assembled to the main casing 10 through the first rotating shaft, the third sliding rod 213 is vertically connected to the connecting part 212, and the first module casing 211 is slidingly arranged on the third sliding rod 213, and the wires connected to the first wireless charging module 22 pass through the third sliding rod 213 and the connecting part 212 (that is, the third sliding rod 213 has an axial through hole, and the connecting part 212 has a cavity for the wires to pass through) and are electrically connected to the main control circuit board in the main mounting cavity. Through the above structure, the first wireless charging module 22 can slide relative to the third sliding rod 213, so that when the first support is turned up, the height of the first wireless charging module 22 is adjusted to adapt to the position of the wireless charging module in the mobile phone and other equipment, and the wireless charging is better performed.

[0047] In an embodiment of the utility model, the first groove 11 extends to the side wall of the main casing 10 perpendicular to the first direction (such as the direction indicated by the arrow X in Figure 2 The second support slides in the first accommodating part along the second direction (such as the direction indicated by the arrow X in Figure 2 When the second support is in the sliding end position, the second wireless charging module 32 is exposed to the side wall of the main casing 10 perpendicular to the second direction, and the second direction is perpendicular to the first direction. Similarly, the third support also slides in the second accommodating part along the second direction, and when the third support is in the sliding end position, the third wireless charging module 42 is exposed to the side wall of the main casing 10 perpendicular to the second direction. The above structure can further reduce the height of the wireless charging device, so that the first support and the second support have a recombined sliding space to accommodate the second wireless charging module 32 and the third wireless charging module below the main casing 10.

[0048] As Figure 2As shown, in an embodiment of the utility model, the second support comprises a first sub-housing 311 and a second module housing 312, and the second wireless charging module 32 is arranged on the second module housing 312. The upper surface of the first sub-housing 311 has a second groove 3111 corresponding to the second module housing 312, and the second module housing 312 is arranged on the first sub-housing 311 through a second rotating shaft arranged in the second groove 3111 and is accommodated in the second groove 3111 by rotating around the second rotating shaft. Similarly, the third support comprises a third sub-housing 41, and the upper surface of the third sub-housing 41 has a third groove, and the third wireless charging module 42 is located at the bottom of the third groove. The shape and size of the third groove can be matched with the shape and size of the wireless earphone to be charged. The above structure facilitates charging of the smart phone and the wireless earphone and other devices. In addition, the outer edge of the third sub-housing 41 can also have a buckle 411, and correspondingly, the main housing 10 has a corresponding clamping hook or the like, so that the third charging assembly will not fall out when accommodated in the main housing 10. In actual application, the first charging assembly and the second charging assembly can also have similar structures.

[0049] In an embodiment of the utility model, the main housing 10 is arranged with a first magnetic block, and the first magnetic block is arranged adjacent to the first contact group 12; the second support has a second magnetic block, and the second magnetic block is arranged adjacent to the second contact group (the polarity directions of the first magnetic block and the second magnetic block are opposite). Correspondingly, the first contact group comprises a plurality of elastic contact pieces, the second contact group comprises a plurality of fixed contact pieces, and when the second support is in the sliding end position, the fixed contact pieces push and press the elastic contact pieces and make the elastic contact pieces elastically deform, and at the same time, the first magnetic block and the second magnetic block are attracted to each other and keep the second support in the sliding end position. Through the above structure, the stability of the electrical connection of the first contact group and the second contact group can be improved.

[0050] Similarly, in combination with Figures 5-8 As shown, the main housing 10 can also be arranged with a third magnetic block (not shown in the figure), and the third magnetic block is arranged adjacent to the third contact group 13; the third support has a fourth magnetic block 44, and the fourth magnetic block 44 is arranged adjacent to the fourth contact group 43 (the polarity directions of the third magnetic block and the fourth magnetic block 44 are opposite). Correspondingly, the third contact group comprises a plurality of elastic contact pieces, the fourth contact group 43 comprises a plurality of fixed contact pieces, and when the third support is in the sliding end position, the fixed contact pieces push and press the elastic contact pieces and make the elastic contact pieces elastically deform, and at the same time, the third magnetic block and the fourth magnetic block are attracted to each other and keep the third support in the sliding end position. Through the above structure, the stability of the electrical connection of the third contact group and the fourth contact group can be improved.

[0051] In an embodiment of the utility model, the main housing 10 is a cuboid as a whole, and the length (i.e. Figure 2The dimension in the direction indicated by the middle arrow Y is greater than the width of the main housing 10 (i.e. Figure 2 The dimension in the direction indicated by the middle arrow Y is greater than the width of the main housing 10 (i.e.

[0052] The above merely provides the preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Any changes or replacements within the technical scope disclosed by the present application can be easily conceived by those skilled in the art, and shall be encompassed within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A wireless charging device, characterized by, The application relates to a wireless charging device, which comprises the following parts: a main shell, which comprises a main mounting cavity and a first receiving part, the first receiving part is located on the lower surface of the main shell, the main mounting cavity is internally provided with a main control circuit board and a first contact group electrically connected with the main control circuit board, and at least part of the first contact group extends to the first receiving part; a first charging assembly, which comprises a first support and a first wireless charging module, the first support is arranged on the upper surface of the main shell through a first rotating shaft, so that the electronic equipment can be placed on the upper surface of the main shell for charging or vertically charged, and the first rotating shaft is parallel to the upper surface of the main shell; the first wireless charging module is arranged on the first support and electrically connected with the main control circuit board through a wire; a second charging assembly, which comprises a second support, a second wireless charging module and a second contact group, the second support is arranged on the first receiving part of the main shell through a first sliding assembly and can be accommodated in the main shell or protruded from the main shell by sliding in the first receiving part, the second wireless charging module and the second contact group are arranged on the second support and electrically connected with each other, the lower surface of the main shell is provided with a straight slot, the first sliding assembly comprises a first guide rod located in the straight slot and a first sliding block located on the second support and provided with a first through hole, and when the second support is assembled on the main shell, the first guide rod passes through the first through hole; the second contact group is located on the inner side of the second support, when the second support is located at a sliding starting position, the second wireless charging module is accommodated in the main shell, and the second contact group is separated from the first contact group; when the second support is located at a sliding ending position, the second wireless charging module is exposed from the main shell, and the second contact group is electrically connected with the first contact group.

2. The wireless charging device of claim 1, wherein, the main shell comprises a third contact group and a second receiving part, the third contact group is electrically connected with the main control circuit board, and at least part of the third contact group extends to the second receiving part; the wireless charging device comprises a third charging assembly, the third charging assembly comprises a third support, a third wireless charging module and a fourth contact group, the third support is arranged on the second receiving part of the main shell through a second sliding assembly and can be accommodated in the main shell or protruded from the main shell by sliding in the second receiving part, the third wireless charging module and the fourth contact group are arranged on the third support and electrically connected with each other; the fourth contact group is located on the inner side of the third support, when the third support is located at a sliding starting position, the third wireless charging module is accommodated in the main shell, and the fourth contact group is separated from the third contact group; when the third support is located at a sliding ending position, the third wireless charging module is exposed from the main shell, and the fourth contact group is electrically connected with the third contact group.

3. The wireless charging device of claim 2, wherein, the second receiving part is located on the lower surface of the main shell, the second support arranged on the first receiving part and the third support arranged on the second receiving part are located in the same plane, and the sliding starting position to the sliding ending position of the second support and the third support is opposite.

4. The wireless charging device of claim 3, wherein, The second sliding assembly comprises a second guide rod located in the straight slot and a second sliding block located in the third support and having a second through hole, and when the third support is assembled to the main housing, the second guide rod passes through the second through hole.

5. The wireless charging device of claim 1, wherein, The upper surface of the main housing has a first recess matched with the first support, the first rotating shaft is arranged at the edge of the first recess, and the first support is accommodated in the first recess or protrudes above the main housing by rotating around the first rotating shaft.

6. The wireless charging device of claim 5, wherein, The first support comprises a first module housing, a connecting part and a third sliding rod, the first wireless charging module is arranged in the first module housing; the connecting part is assembled to the main housing through a first rotating shaft, the third sliding rod is vertically connected to the connecting part, and the first module housing is slidingly arranged on the third sliding rod, and the wires connected to the first wireless charging module pass through the third sliding rod and the connecting part to be electrically connected with the main control circuit board in the main installation cavity.

7. The wireless charging device of claim 5, wherein, The first recess extends to a side wall of the main housing perpendicular to the first direction, the first rotating shaft is arranged at the part of the first recess extending to the side wall; the second support slides in the first accommodating part along the second direction, and when the second support is in the sliding end position, the second wireless charging module is exposed to the side wall of the main housing perpendicular to the second direction, and the second direction is perpendicular to the first direction.

8. The wireless charging device of claim 2, wherein, The second support comprises a first sub-housing and a second module housing, and the second wireless charging module is arranged in the second module housing; the upper surface of the first sub-housing has a second recess corresponding to the second module housing, and the second module housing is arranged in the first sub-housing through a second rotating shaft arranged in the second recess and is accommodated in the second recess by rotating around the second rotating shaft; The third support comprises a third sub-housing, and the upper surface of the third sub-housing has a third recess, and the third wireless charging module is located at the bottom wall of the third recess.

9. The wireless charging device of claim 1, wherein, The main housing is provided with a first magnetic block, and the first magnetic block is arranged adjacent to the first contact group; the second support has a second magnetic block, and the second magnetic block is arranged adjacent to the second contact group; The first contact group comprises a plurality of elastic contacts, the second contact group comprises a plurality of fixed contacts, and when the second support is in the sliding end position, the fixed contacts push the elastic contacts and make the elastic contacts elastically deform, the first magnetic block and the second magnetic block are attracted to each other and keep the second support in the sliding end position.

10. The wireless charging device of any one of claims 1-9, wherein, The main housing is a cuboid as a whole, the length of the main housing is greater than the width of the main housing, and the width of the main housing is more than 3 times the height of the main housing.

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