CN215733564U

CN215733564U - Wireless charging device

Info

Publication number: CN215733564U
Application number: CN202121749027.2U
Authority: CN
Inventors: 顾樊; 肖英晖; 张吉山; 王明成
Original assignee: Lanto Electronic Ltd
Current assignee: Lanto Electronic Ltd
Priority date: 2021-07-29
Filing date: 2021-07-29
Publication date: 2022-02-01
Anticipated expiration: 2031-07-29

Abstract

The utility model belongs to the technical field of wireless charging, and discloses a wireless charging device which comprises a supporting mechanism, a refrigerating sheet, a heat dissipation mechanism and a wireless charging module, wherein the supporting mechanism comprises an outer frame and a first shell, and the outer frame supports the first shell through a supporting part; the refrigerating surface of the refrigerating sheet is arranged close to the first shell; the heat dissipation mechanism comprises a heat dissipation structure and a ventilation structure, the heat dissipation structure comprises a first heat dissipation part and a second heat dissipation part, the first heat dissipation part is arranged on one side, away from the first shell, of the supporting part, the second heat dissipation part is arranged by being attached to the heating surface, and the ventilation structure is arranged by being attached to one side, away from the heating surface, of the second heat dissipation part; the wireless charging module is arranged between the first heat dissipation part and the supporting part. According to the utility model, the first shell and the mobile phone are cooled through the refrigerating sheet, the heat on the refrigerating sheet is timely discharged out of the outer frame through the matching of the second heat dissipation part and the ventilation structure, and meanwhile, the first heat dissipation part is utilized to dissipate heat of the wireless charging module, so that the mobile phone is cooled better, and the heat dissipation and charging efficiency is improved.

Description

Wireless charging device

Technical Field

The utility model relates to the technical field of wireless charging, in particular to a wireless charging device.

Background

With the rapid development of wireless charging technology, in order to better satisfy the experience of consumers and reduce the charging time of mobile phones, the power of the wireless charging device on the market is getting larger. However, the higher the power of the wireless charging device is, the more easily the wireless charging device generates heat, which further causes the temperature of the wireless charger to be high, and the charging time is prolonged, so the heat dissipation of the wireless charger becomes a main problem of increasing the power of the wireless charger and shortening the charging time.

However, in the prior art, the heat dissipation mode of the electronic device is mainly heat dissipation through the housing of the electronic device; or the wireless charger with relatively large power adopts the mode of a plurality of small fans, and then the fans inside are induced draft from the outside air inlet, and the heat generated by the internal structure is taken away in the flowing process of the air, so that the heat is taken out of the wireless charger.

However, when the wireless charger is cooled by adopting the above method, the cooling efficiency is low, and the product appearance of the wireless charger is greatly limited; when the ambient temperature is too high, the heat dissipation is seriously affected, so that the charging power and the charging efficiency of the wireless charger are low, the high-power charging cannot be supported for a long time, and the charging efficiency of the wireless charger is reduced.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a wireless charging device, which obviously improves the heat dissipation efficiency, increases the high-power charging time, reduces the total charging time and improves the charging efficiency of the wireless charging device.

In order to achieve the purpose, the utility model adopts the following technical scheme:

a wireless charging device, comprising:

the supporting mechanism comprises an outer frame and a first shell, and the first shell is arranged on the supporting part of the outer frame and used for placing a mobile phone; the refrigerating piece is arranged close to the first shell and provided with a refrigerating surface facing the first shell and a heating surface departing from the first shell;

the heat dissipation mechanism comprises a heat dissipation structure and a ventilation structure which are arranged in the outer frame, the heat dissipation structure comprises a first heat dissipation part and a second heat dissipation part which are connected with each other, the first heat dissipation part is arranged on one side, away from the first shell, of the supporting part, the second heat dissipation part is arranged by being attached to the heating surface, and the ventilation structure is arranged by being attached to one side, away from the heating surface, of the second heat dissipation part and used for air circulation;

and the wireless charging module is arranged between the first heat dissipation part and the supporting part.

Preferably, the heat dissipation structure further comprises a heat dissipation cavity, the heat dissipation cavity is located in the outer frame, one end of the heat dissipation cavity is communicated with the first heat dissipation portion, and the other end of the heat dissipation cavity is communicated with the surface of the outer frame.

Preferably, the first heat dissipation part comprises a heat dissipation part body and heat dissipation fins, the heat dissipation part body faces the wireless charging module, and the heat dissipation fins are arranged on the surface, deviating from the wireless charging module, of the heat dissipation part body and extend towards the heat dissipation cavity.

Preferably, the outer frame is provided with a heat dissipation port communicated with the heat dissipation cavity, and the first heat dissipation part, the heat dissipation cavity and the heat dissipation port form a heat dissipation channel.

Preferably, the ventilation structure comprises a ventilation cavity and a fan accommodated in the ventilation cavity, the ventilation cavity is located in the outer frame and communicated with the surface of the outer frame, and the fan is arranged close to the second heat dissipation part.

Preferably, the outer frame is provided with a first vent communicated with a ventilation cavity, and the fan, the ventilation cavity and the first vent form a ventilation path.

Preferably, an inner support is arranged in the outer frame, the inner support comprises a bottom plate and a support assembly arranged on the bottom plate, a second ventilation opening is formed in the bottom plate, a third ventilation opening is formed in the support assembly, the fan is contained at the third ventilation opening, one end of the ventilation cavity is communicated with the surface of the outer frame through the second ventilation opening, and the other end of the ventilation cavity is communicated with the third ventilation opening.

Preferably, the support assembly includes a first support member and a second support member, one end of the first support member and one end of the second support member are disposed on the base at an interval, the other end of the first support member is connected with the other end of the second support member, the first support member is disposed close to the first housing with respect to the second support member, the third ventilation opening is disposed on the first support member, the ventilation cavity is disposed between the first support member and the second support member, and the heat dissipation structure is mounted on a side of the first support member away from the ventilation cavity.

Preferably, the outer frame is provided with a supporting portion for supporting the first shell, the supporting portion is provided with a heat insulation cavity, the surface of the first shell, which deviates from the heat insulation cavity, is used for placing the mobile phone, and the wireless charging module is arranged between the other part of the heat dissipation structure and the surface of the supporting portion, which deviates from the heat insulation cavity.

Preferably, the outer frame is provided with an accommodating groove communicated with the heat insulation cavity, and the first shell is accommodated in the accommodating groove.

The utility model has the beneficial effects that:

according to the wireless charging device, the cooling surface of the refrigerating sheet is arranged close to the first shell so as to cool the mobile phone arranged on the first shell, and the heat on the heating surface of the refrigerating sheet is timely discharged out of the outer frame by utilizing the cooperation of the second heat dissipation part and the ventilation structure; meanwhile, the first heat dissipation part is utilized to dissipate heat of the wireless charging module, so that the mobile phone is cooled better in the charging process of the mobile phone. Under refrigeration piece and heat dissipation mechanism's cooperation set up, need not to set up a plurality of fans and just can realize the cooling to first casing to and effectively dispel the heat to wireless charging module, showing and promoting the radiating efficiency, long when the increase high power charges, improve charge efficiency, save product occupation space simultaneously.

Drawings

Fig. 1 is a schematic structural diagram of a wireless charging device according to an embodiment of the present invention;

fig. 2 is an exploded schematic view of a wireless charging device according to an embodiment of the present invention;

fig. 3 is a first schematic structural diagram of an internal support of a wireless charging device according to an embodiment of the present invention;

fig. 4 is a second schematic structural diagram of an inner bracket of the wireless charging device according to the embodiment of the present invention;

fig. 5 is a schematic structural diagram of an outer frame of a wireless charging device according to an embodiment of the present invention.

In the figure:

100-mobile phone; 200-a circuit board;

1-a support mechanism; 11-an outer frame; 111-a support; 112-a thermally insulating cavity; 113-a mounting groove; 114-a receiving groove; 12-a first housing; 13-inner support; 131-a bottom plate; 1311-second vent; 132-a support assembly; 1321-third vent; 1322-a first support; 1323-a second support; 14-a base;

2-refrigerating sheets; 21-refrigerating surface; 22-heating surface;

3-a heat dissipation mechanism;

31-a heat dissipation structure; 311-a first heat sink portion; 3111-a heat dissipating portion body; 3112-heat dissipating fins; 312 — a second heat sink portion; 313-a heat dissipation chamber; 314-heat dissipation ports;

32-a ventilation structure; 321-a ventilation cavity; 322-a fan; 323-a first vent;

4-wireless charging module.

Detailed Description

Reference will now be made in detail to the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar parts throughout or parts having the same or similar functions. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the utility model and are not to be construed as limiting the utility model.

In the description of the present invention, unless otherwise expressly specified or limited, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning a fixed connection, a removable connection, a mechanical connection, an electrical connection, a direct connection, an indirect connection via an intermediary, a connection between two elements, or an interaction between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the description of the present invention, unless otherwise expressly specified or limited, the first feature "on" or "under" the second feature may include the first feature and the second feature being in direct contact, or may include the first feature and the second feature being in contact not directly but with another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The technical scheme of the utility model is further explained by the specific implementation mode in combination with the attached drawings.

As shown in fig. 1 and fig. 2, the present invention provides a wireless charging device, which includes a supporting mechanism 1, a cooling plate 2, a heat dissipation mechanism 3 and a wireless charging module 4, wherein the supporting mechanism 1 includes an outer frame 11 and a first housing 12, the first housing 12 is disposed on a supporting portion 111 of the outer frame 11 for placing a mobile phone 100; the refrigeration plate 2 is arranged adjacent to the first housing 12 and has a refrigeration surface 21 facing the first housing 12 and a heating surface 22 facing away from the first housing 12; the heat dissipation mechanism 3 includes a heat dissipation structure 31 and a ventilation structure 32 disposed in the outer frame 11, the heat dissipation structure 31 includes a first heat dissipation part 311 and a second heat dissipation part 312 connected to each other, the first heat dissipation part 311 is disposed on one side of the support part 111 away from the first housing 12, the second heat dissipation part 312 is disposed adjacent to the heat generation surface 22, and the ventilation structure 32 is disposed adjacent to one side of the second heat dissipation part 312 away from the heat generation surface 22 for air circulation; the wireless charging module 4 is disposed between the first heat sink portion 311 and the support portion 111.

The wireless charging device of the embodiment is arranged by abutting the refrigeration surface 21 of the refrigeration piece 2 against the first housing 12 to cool the mobile phone 100 arranged on the first housing 12, and the heat on the heating surface 22 of the refrigeration piece 2 is timely discharged out of the outer frame 11 by utilizing the cooperation of the second heat dissipation part 312 of the heat dissipation mechanism 3 and the ventilation structure 32, specifically, the heating surface 22 of the refrigeration piece 2 can be directly dissipated by the second heat dissipation part 312, and cold air is fed into the outer frame 11 by matching with the ventilation structure 32 to dissipate heat of the second heat dissipation part 312, so that the cooling effect of the refrigeration piece 2 on the first housing 12 is improved; in addition, the first heat dissipation part 311 of the heat dissipation structure 31 can be used for dissipating heat of the wireless charging module 4, so that the mobile phone 100 can be cooled better in the charging process of the mobile phone 100. Under the matching arrangement of the cooling fins 2 and the heat dissipation mechanism 3, the first shell 12 is cooled, the wireless charging module 4 is effectively dissipated, the heat dissipation efficiency is obviously improved, the high-power charging time is prolonged, the total charging time is reduced, and the charging efficiency of the wireless charging device is improved; meanwhile, the components are utilized, the arrangement of a plurality of fan structures in the traditional scheme is omitted, the weight of the product is reduced, and the occupied space of the product is saved.

Referring to fig. 1, the supporting portion 111 of the outer frame 11 is used for supporting the first casing 12, the supporting portion 111 is provided with a thermal insulation cavity 112, a surface of the first casing 12 facing away from the thermal insulation cavity 112 is used for placing the mobile phone 100, and the wireless charging module 4 is disposed between another portion of the heat dissipation structure 31 and a surface of the supporting portion 111 facing away from the thermal insulation cavity 112. Be provided with thermal-insulated chamber 112 on the supporting part 111 through outer frame 11, utilize this thermal-insulated chamber 112 to separate wireless charging module 4 and first casing 12, the poor heat conductivity in thermal-insulated chamber 112 can separate the heat of wireless charging module 4 and locate the transmission to first casing 12, avoids the direct conduction of heat to the cell-phone 100 back, promotes radiating effect and to the charge efficiency of cell-phone 100.

Referring to fig. 1, the heat dissipation structure 31 has a heat dissipation cavity 313, the heat dissipation cavity 313 is located in the outer frame 11, one end of the heat dissipation cavity 313 is communicated with the first heat dissipation portion 311, and the other end of the heat dissipation cavity 313 is communicated with the surface of the outer frame 11, the heat dissipated by the first heat dissipation portion 311 is sent out of the outer frame 11 by utilizing the circulation of air outside the heat dissipation cavity 313 and the outer frame 11, so as to dissipate heat and cool the wireless charging module 4, which is beneficial to prolonging the duration of the wireless charging device for charging the mobile phone 100 with high power.

Optionally, the wireless charging module 4 is a wireless charging coil.

Referring to fig. 1, the outer frame 11 is provided with a heat dissipation port 314 communicated with the heat dissipation cavity 313, the first heat dissipation part 311, the heat dissipation cavity 313 and the heat dissipation port 314 form a heat dissipation channel, and the airflow collected in the heat dissipation cavity 313 can flow out from the heat dissipation port 314 to take away heat of the first heat dissipation part 311 through the heat dissipation channel. Specifically, the plurality of heat dissipation ports 314 are arranged on the outer frame 11 at intervals, so that the hot air flow in the heat dissipation cavity 313 is accelerated to circulate with the outside, the heat dissipation effect of the heat dissipation channel is enhanced, and the heat dissipation efficiency is improved.

Alternatively, the first heat sink member 311 may be a heat sink or a heat sink column. Specifically, referring to fig. 2, the first heat sink portion 311 includes a heat sink portion body 3111 and heat sink fins 3112, the heat sink portion body 3111 is disposed towards the wireless charging module 4, the heat sink fins 3112 are disposed on a surface of the heat sink portion body 3111 away from the wireless charging module 4 and extend towards the heat sink cavity 313, and then the first heat sink portion 311 effectively utilizes the heat sink cavity 313 and the heat sink 314 to exchange heat and cold with the outside.

Referring to fig. 1, the ventilation structure 32 includes a ventilation cavity 321 and a fan 322 accommodated in the ventilation cavity 321, the ventilation cavity 321 is located in the outer frame 11 and communicated with the surface of the outer frame 11, and the fan 322 is disposed toward the second heat dissipation portion 312 of the heat dissipation structure 31 against which the cooling fins 2 abut. Blow cold wind through fan 322 to second heat dissipation portion 312 and refrigeration piece 2, through the outside exhaust of ventilation chamber 321 outside outer frame 11 hot-blast to cooling and heat dissipation are carried out refrigeration piece 2 with higher speed, thereby promote refrigeration piece 2 and carry out the high power to cell-phone 100 and charge to the refrigeration effect of first casing 12, guarantee that wireless charging device can be long-time.

Referring to fig. 1, the outer frame 11 is provided with a first ventilation opening 323 communicating with the ventilation cavity 321, and the fan 322, the ventilation cavity 321 and the first ventilation opening 323 form a ventilation path, so that the airflow in the ventilation cavity 321 exchanges heat with the outside, and the heat of the second heat dissipation portion 312 and the heat generating surface 22 is timely taken away. Specifically, the first ventilation opening 323 is opened on the base 14 of the outer shell 11, and the heat dissipation opening 314 is opened on the top of the outer shell 11, so that airflow channels are respectively formed above and below the outer shell 11, and the heat dissipation effect is enhanced. Optionally, a plurality of first ventilation openings 323 are provided, and the plurality of first ventilation openings 323 are arranged on the base 14 of the outer frame 11 at intervals, so as to further accelerate the speed of the cold air flowing into the ventilation cavity 321, and improve the cooling and heat dissipation efficiency of the first housing 12.

Alternatively, the second heat sink piece 312 may be a heat sink or a heat sink post.

Referring to fig. 2 to 4, the inner frame 13 is disposed in the outer frame 11, the inner frame 13 includes a bottom plate 131 and a support assembly 132 disposed on the bottom plate 131, the bottom plate 131 is disposed on the base 14 of the outer frame 11 and is provided with a second vent 1311 communicated with the first vent 323, the support assembly 132 is provided with a third vent 1321, the fan 322 is accommodated in the third vent 1321, one end of the vent cavity 321 is communicated with the surface of the outer frame 11 through the second vent 1311, and the other end is communicated with the third vent 1321. The inner frame 13 is matched with the outer frame 11, so that heat accumulated on the heating surface 22 of the cooling plate 2 can exchange heat with the outside through the ventilation cavity 321, the second ventilation opening 1311 and the first ventilation opening 323 by using the fan 322 accommodated in the third ventilation opening 1321.

Referring to fig. 2 to 4, the support assembly 132 includes a first support 1322 and a second support 1323, one end of the first support 1322 and one end of the second support 1323 are disposed on the bottom plate 131 at an interval, the other end of the first support 1322 is connected to the other end of the second support 1323, the first support 1322 is disposed close to the first housing 12 relative to the second support 1323, and the first support 1322 and the second support 1323 are mutually matched to form a stable support structure on the bottom plate 131, so as to provide support for the heat dissipation structure 31 and the circuit board 200. Specifically, the third vent 1321 is disposed on the first support piece 1322, the vent cavity 321 is disposed between the first support piece 1322 and the second support piece 1323, a stable heat dissipation channel is formed, and the heat dissipation structure 31 is mounted on a side of the first support piece 1322 away from the vent cavity 321, wherein the second heat dissipation portion 312 is disposed by abutting against the fan 322 at the third vent 1321 and is mounted on the first support piece 1322, so that the fan 322 can quickly and directly dissipate heat collected on the second heat dissipation portion 312 to the outside of the outer frame 11 through the vent cavity 321, the second vent 1311, and the first vent 323, thereby improving heat dissipation efficiency. Specifically, a heat dissipation cavity 313 of the heat dissipation structure 31 is formed between the side of the second support 1323 facing away from the ventilation cavity 321 and the outer frame 11, and the surface of the second support 1323 facing the heat dissipation cavity 313 is used for placing the circuit board 200, heat generated by the circuit board 200 due to operation can be dissipated through the heat dissipation cavity 313 and the heat dissipation opening 314, a joint of the first support 1322 and the second support 1323 is disposed facing the heat dissipation opening 314, and the heat dissipation fins 3112 of the first heat dissipation portion 311 extend towards the heat dissipation cavity 313, so that the first heat dissipation portion 311 effectively utilizes the heat dissipation cavity 313 and the heat dissipation opening 314 to perform heat and cold exchange with the outside.

Preferably, the first casing 12 is made of ceramic material, and has the advantages of fast heat dissipation, high hardness and good thermal shock resistance.

Alternatively, the support plate 12 may be integrally formed with the outer case 11.

Referring to fig. 2 and 5, the supporting portion 111 is provided with a mounting groove 113 along a direction perpendicular to the first housing 12, the mounting groove 113 is communicated with the inside of the outer frame 11, the cooling fins 2 are accommodated in the mounting groove 113, which is not only convenient for the cooling fins 2 to be attached to the second heat dissipating portion 312, so that the cooling surface 21 of the cooling fins is attached to the first housing 12, and the heating surface 22 is attached to the second heat dissipating portion 312, which is also beneficial for the ventilation structure 32 and the second heat dissipating portion 312 to cool and dissipate the cooling fins 2.

Referring to fig. 2 and 5, the mounting grooves 113 and the heat insulation cavity 112 are disposed on the supporting portion 111 at intervals along the first housing 12, the outer frame 11 is provided with a receiving groove 114 communicated with the heat insulation cavity 112 and the mounting grooves 113, the first housing 12 is received in the receiving groove 114, such that a part of the first housing 12 abuts against the heat insulation cavity 112, and another part abuts against the cooling surface 21 of the cooling plate 2, thereby simultaneously insulating heat and cooling the first housing 12, significantly reducing the heating rate of the first housing 12 and the mobile phone 100 placed on the first housing 12, and maintaining the mobile phone 100 in a lower temperature range.

It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A wireless charging device, comprising:

the supporting mechanism (1) comprises an outer frame (11) and a first shell (12), wherein the first shell (12) is arranged on a supporting part (111) of the outer frame (11) and used for placing the mobile phone (100);

a cooling plate (2), wherein the cooling plate (2) is arranged close to the first shell (12) and is provided with a cooling surface (21) facing the first shell (12) and a heating surface (22) facing away from the first shell (12);

the heat dissipation mechanism (3) comprises a heat dissipation structure (31) and a ventilation structure (32) which are arranged in the outer frame (11), the heat dissipation structure (31) comprises a first heat dissipation part (311) and a second heat dissipation part (312) which are connected with each other, the first heat dissipation part (311) is arranged on one side, away from the first shell (12), of the supporting part (111), the second heat dissipation part (312) is arranged by being attached to the heating surface (22), and the ventilation structure (32) is arranged by being attached to one side, away from the heating surface (22), of the second heat dissipation part (312) and is used for air circulation;

a wireless charging module (4), wherein the wireless charging module (4) is arranged between the first heat dissipation part (311) and the supporting part (111).

2. The wireless charging device according to claim 1, wherein the heat dissipation structure (31) further comprises a heat dissipation cavity (313), the heat dissipation cavity (313) is located in the outer frame (11), one end of the heat dissipation cavity is communicated with the first heat dissipation portion (311), and the other end of the heat dissipation cavity is communicated with the surface of the outer frame (11).

3. The wireless charging device according to claim 2, wherein the first heat sink portion (311) comprises a heat sink portion body (3111) and heat sink fins (3112), the heat sink portion body (3111) is disposed toward the wireless charging module (4), and the heat sink fins (3112) are disposed on a surface of the heat sink portion body (3111) facing away from the wireless charging module (4) and extend toward the heat sink cavity (313).

4. The wireless charging device according to claim 2, wherein the outer frame (11) is provided with a heat dissipation opening (314) communicated with the heat dissipation cavity (313), and the first heat dissipation portion (311), the heat dissipation cavity (313) and the heat dissipation opening (314) form a heat dissipation channel.

5. The wireless charging apparatus according to claim 1, wherein the ventilation structure (32) includes a ventilation cavity (321) and a fan (322) accommodated in the ventilation cavity (321), the ventilation cavity (321) is located inside the outer frame (11) and communicates with a surface of the outer frame (11), and the fan (322) is disposed against the second heat dissipating portion (312).

6. The wireless charging device according to claim 5, wherein a first ventilation opening (323) communicating with the ventilation chamber (321) is provided in the outer frame (11), and the fan (322), the ventilation chamber (321), and the first ventilation opening (323) form a ventilation path.

7. The wireless charging device according to claim 5, wherein an inner support (13) is disposed in the outer frame (11), the inner support (13) includes a bottom plate (131) and a support member (132) disposed on the bottom plate (131), a second vent (1311) is disposed on the bottom plate (131), a third vent (1321) is disposed on the support member (132), the fan (322) is accommodated in the third vent (1321), one end of the ventilation cavity (321) is communicated with the surface of the outer frame (11) through the second vent (1311), and the other end is communicated with the third vent (1321).

8. The wireless charging apparatus of claim 7, wherein the support assembly (132) comprises a first support (1322) and a second support (1323), one end of the first support member (1322) and one end of the second support member (1323) are disposed on the bottom plate (131) at an interval, the other end of the first support member (1322) is connected with the other end of the second support member (1323), the first support (1322) being disposed proximate to the first housing (12) relative to the second support (1323), the third vent opening (1321) is arranged on the first supporting piece (1322), the ventilation chamber (321) is located between the first support (1322) and the second support (1323), the heat dissipation structure (31) is mounted on one side of the first support piece (1322) which faces away from the ventilation cavity (321).

9. The wireless charging device according to claim 1, wherein a heat insulation cavity (112) is disposed on the supporting portion (111), a surface of the first housing (12) facing away from the heat insulation cavity (112) is used for placing the mobile phone (100), and the wireless charging module (4) is disposed between another portion of the heat dissipation structure (31) and a surface of the supporting portion (111) facing away from the heat insulation cavity (112).

10. The wireless charging device according to claim 9, wherein the outer frame (11) is provided with a receiving groove (114) communicating with the heat insulating chamber (112), and the first housing (12) is received in the receiving groove (114).