CN213366659U

CN213366659U - Wireless charging structure capable of changing heat transfer direction

Info

Publication number: CN213366659U
Application number: CN202021627165.9U
Authority: CN
Inventors: 杜冰; 唐杰; 赵业扬; 徐坤
Original assignee: Jiangsu Kuntang Technology Co ltd
Current assignee: Jiangsu Kuntang Technology Co ltd
Priority date: 2020-08-07
Filing date: 2020-08-07
Publication date: 2021-06-04
Anticipated expiration: 2030-08-07

Abstract

The utility model provides a become wireless charging structure of hot direction of transfer, utilize the outstanding ability of blocking the source that generates heat of aerogel insulating layer, increase the insulating layer between coil module and battery, help the heat dissipation of coil module through adding the heat-conducting layer of establishing, change the heat-conducting direction of coil module, lead shell or other heat abstractor with the heat that the coil produced, block the coil and to battery heat transfer, thereby the extension battery heaies up to the time of its protection temperature of setting for, and then the quick wireless charging time of extension, make the battery advance more electric energy in the same time.

Description

Wireless charging structure capable of changing heat transfer direction

Technical Field

The utility model relates to a wireless technical field that charges especially relates to a change heat transfer direction's wireless charging structure.

Background

At present, the wireless charging power of mainstream wireless charging equipment in the market is higher and higher, and some wireless charging equipment reach 25-40W, but the charging power is reduced after high-power charging (>15W) for only a few minutes, and the most important reason is as follows: when high-power wireless charging is carried out, the receiving coil generates heat seriously, the wireless charging receiving coil is tightly attached to the battery, heat is easily conducted to the battery, and the service life of the battery can be shortened due to overhigh temperature. In order to protect the service life of the battery, the current method is to charge for a period of time at high power and charge at reduced power, and the current charging protection mechanism prolongs the charging time of the battery, so that the charging experience of consumers is poor.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a heat dissipation and thermal-insulated effect, and then prolong quick wireless charging time, make the battery fill into the wireless charging structure of more electric energy in the same time.

In order to achieve the above object, the utility model provides a change wireless charging structure of heat transfer direction, including coil module and battery, the coil module with the insulating layer has been preset between the battery.

Preferably, the device further comprises a shell; the coil module, the battery and the heat insulation layer are all arranged in the shell.

Preferably, the coil module is in close contact with the housing or other heat dissipation devices, so as to achieve the effect of direct heat dissipation.

Preferably, a heat conduction layer is arranged between the coil module and the heat insulation layer.

Preferably, the area of the heat conduction layer is larger than that of the coil module; so that the outer ring of the heat conducting layer is convenient to adhere to the surface of the shell or adhere to other heat dissipation devices.

Preferably, the number of layers of any one of the heat conduction layer and the heat insulation layer can be repeatedly superposed.

Preferably, the heat insulation layer is a heat insulation material with the heat conductivity less than 1W/(m.K); the heat insulation material comprises an aerogel film, a heat insulation layer coated with aerogel coating and heat insulation foam.

Preferably, the heat conducting layer is a graphite sheet, a heat conducting pad, heat conducting silicone grease or a phase change energy storage material; and the surface of the heat conducting layer can be sprayed with heat conducting materials to assist in heat conduction, and the heat conducting materials comprise graphite materials.

Preferably, the coil module adopts a litz wire winding coil or a PCB or FPC coil.

Compared with the prior art, the utility model has the advantages that: the utility model discloses an utilize the outstanding ability of blocking the source that generates heat of aerogel insulating layer, increase the insulating layer between coil module and battery, help the heat dissipation of coil module through adding to establish the heat-conducting layer, change the heat-conducting direction of coil module, lead shell or other heat abstractor with the heat that the coil produced on, block the coil and to battery heat transfer, thereby the extension battery heaies up the time of its protection temperature of setting for, and then the quick wireless charging time of extension, make the battery fill into more electric energy in the same time.

Drawings

Fig. 1 is a schematic overall structure diagram of a wireless charging structure for changing a heat transfer direction according to an embodiment of the present invention;

fig. 2 is a schematic thermal conduction diagram of a wireless charging structure for changing a heat transfer direction according to an embodiment of the present invention;

fig. 3 is a schematic overall structure diagram of a wireless charging structure for changing a heat transfer direction according to another embodiment of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be further described below.

As shown in fig. 1, the utility model provides a change wireless charging structure of heat transfer direction, including coil module 2 and battery 5, preset insulating layer 4 between coil module 2 and the battery 5, insulating layer 4 is effectual blocks the coil and to battery 5 heat transfer to the time of the protection temperature that extension battery 5 heaied up to its settlement, and then the quick wireless charging time of extension makes battery 5 advance more electric energy in the same time

In the embodiment, the device further comprises a shell 1; the coil module 2, the battery 5 and the heat insulation layer 4 are all arranged in the shell 1.

The coil module 2 is in close contact with the shell 1 or other heat dissipation devices, and heat generated by the coil module 2 is dissipated through the shell 1 or other heat dissipation devices, so that the effect of direct heat dissipation is achieved.

In this embodiment, a heat conducting layer 3 is disposed between the coil module 2 and the heat insulating layer 4, and the area of the heat conducting layer 3 is larger than that of the coil module 2; so that the outer ring of the heat conduction layer 3 is convenient to adhere to the surface of the shell 1 or adhere to other heat dissipation devices; the heat conduction layer 3 directly contacts with the shell 1 or other heat dissipation devices, so that the heat conduction layer 3 directly dissipates the heat of the coil module 2.

The heat conduction layer 3 is additionally arranged to assist the heat dissipation of the coil module 2, the heat conduction direction of the coil module 2 is changed, the heat generated by the coil is conducted to the shell 1 or other heat dissipation devices, and the coil is blocked from transferring heat to the battery 5; as shown in fig. 2, the coil module 2 generates a heat source 10 when operating, the heat (indicated by thick arrows) of the heat source 10 is expanded to be uniformly heated by a heat dissipation material 11, and the heat dissipation material can also be connected with a heat dissipation device to conduct the heat out; the insulating material 12 may block the heat source 10 and only a small amount of heat may reach the battery 513 (indicated by thin arrows). This arrangement changes the direction of heat transfer, greatly reduces the amount of heat from the heat source 10 reaching the battery 513, and increases the life of the battery 513.

In the present embodiment, the heat insulating layer 4 is a heat insulating material having a thermal conductivity of less than 1W/(m · K); the heat insulation material comprises an aerogel film, a heat insulation layer 4 coated with aerogel coating and heat insulation foam.

In this embodiment, the heat conducting layer 3 is a graphite sheet, a heat conducting pad, a heat conducting silicone grease or a phase change energy storage material; and the surface of the heat conduction layer 3 can be sprayed with heat conduction materials to assist heat conduction, and the heat conduction materials comprise graphite materials.

In the present embodiment, the coil module 2 employs a litz wire coil or a PCB or FPC coil.

In addition, in practical production, as shown in fig. 3, the number of layers of any one of the heat conductive layer 3 and the heat insulating layer 4 can be repeatedly overlapped to achieve better heat insulation and heat transfer direction changing effects.

The above description is only for the preferred embodiment of the present invention, and does not limit the present invention. Any technical personnel who belongs to the technical field, in the scope that does not deviate from the technical scheme of the utility model, to the technical scheme and the technical content that the utility model discloses expose do the change such as the equivalent replacement of any form or modification, all belong to the content that does not break away from the technical scheme of the utility model, still belong to within the scope of protection of the utility model.

Claims

1. A wireless charging structure capable of changing the heat transfer direction comprises a coil module and a battery, and is characterized in that a heat insulation layer is preset between the coil module and the battery; also includes a housing; the coil module, the battery and the heat insulation layer are all arranged in the shell; the coil module is in close contact with the shell or other heat dissipation devices, so that the effect of direct heat dissipation is achieved; and a heat conduction layer is arranged between the coil module and the heat insulation layer.

2. The wireless charging structure for changing a heat transfer direction according to claim 1, wherein an area of the heat conductive layer is larger than an area of the coil module; so that the outer ring of the heat conducting layer is convenient to adhere to the surface of the shell or adhere to other heat dissipation devices.

3. The wireless charging structure for changing a heat transfer direction according to claim 1, wherein the number of layers of any one of the heat conductive layer and the heat insulating layer can be repeatedly superimposed.

4. The wireless charging structure for changing a heat transfer direction according to claim 1, wherein the heat insulating layer is a heat insulating material having a thermal conductivity of less than 1W/(m-K); the heat insulation material comprises an aerogel film, a heat insulation layer coated with aerogel coating and heat insulation foam.

5. The wireless charging structure for changing a heat transfer direction according to claim 1, wherein the heat conductive layer is a graphite sheet, a heat conductive pad, a heat conductive silicone grease, or a phase change energy storage material; and the surface of the heat conducting layer can be sprayed with heat conducting materials to assist in heat conduction, and the heat conducting materials comprise graphite materials.

6. The wireless charging structure for changing the heat transfer direction according to claim 1, wherein the coil module is a litz wire wound coil or a PCB or FPC coil.