CN220172925U - Wireless charger with built-in fan - Google Patents
Wireless charger with built-in fan Download PDFInfo
- Publication number
- CN220172925U CN220172925U CN202320962883.9U CN202320962883U CN220172925U CN 220172925 U CN220172925 U CN 220172925U CN 202320962883 U CN202320962883 U CN 202320962883U CN 220172925 U CN220172925 U CN 220172925U
- Authority
- CN
- China
- Prior art keywords
- circuit board
- printed circuit
- wireless charger
- fan
- support plate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 230000017525 heat dissipation Effects 0.000 claims abstract description 11
- 239000000853 adhesive Substances 0.000 claims description 6
- 230000001070 adhesive effect Effects 0.000 claims description 6
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000020169 heat generation Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B40/00—Technologies aiming at improving the efficiency of home appliances, e.g. induction cooking or efficient technologies for refrigerators, freezers or dish washers
Landscapes
- Cooling Or The Like Of Electrical Apparatus (AREA)
Abstract
The utility model provides a wireless charger with a built-in fan, which relates to the technical field of wireless charging and comprises: the fan is fixed at the bottom of the inner side of the shell body, and a printed circuit board is erected on one side of the fan, which is away from the shell body; the support plate is fixed on one side of the printed circuit board, which is away from the fan, and one side of the support plate, which is away from the printed circuit board, is sequentially provided with a heat dissipation plate and a charging coil which is welded on the printed circuit board through a pin module; and the upper cover of the shell is arranged on one side of the charging coil far away from the printed circuit board and is fixedly connected with the shell body. The wireless charger has the beneficial effects that the fan used for radiating is built in the wireless charger, so that potential safety hazards caused by overhigh temperature can be avoided when the wireless charger is used for wireless charging, the over-temperature protection circuit is also integrated on the printed circuit board, and the potential safety hazards caused by overhigh temperature can be avoided when the wireless charger is used for wireless charging.
Description
Technical Field
The utility model relates to the technical field of wireless charging, in particular to a wireless charger with a built-in fan.
Background
An in-vehicle charger is a necessary device that can assist a user in charging his electronic device in a vehicle. There are a wide variety of on-board chargers on the market today, including wired chargers, wireless chargers, and the like. However, since most on-board wire chargers have low power, typically less than 15W, and most on-board also have no wireless charger, this makes the on-board charger unable to meet the user's quick charge needs and non-selective.
Electromagnetic waves generated by the wireless charger in the working process and current generated during electric energy transmission can cause heat generation. When the wireless charger receives a device to be charged, the coil inside the charger will start to operate and generate an alternating current. These currents can generate electromagnetic waves in the vicinity of the coil, which can cause the coil and other components to heat. In addition, when the electronic components inside the wireless charger are subjected to load exceeding their rated load, heat generation problems are also caused.
Disclosure of Invention
Aiming at the problems existing in the prior art, the utility model provides a wireless charger with a built-in fan, which comprises:
the fan is fixed at the bottom of the inner side of the shell body, and a printed circuit board is erected on one side of the fan, which is away from the shell body;
the support plate is fixed on one side of the printed circuit board, which is far away from the fan, and a heat dissipation plate and a charging coil are sequentially arranged on one side of the support plate, which is far away from the printed circuit board, and the charging coil is welded on the printed circuit board through a pin module;
and the upper cover of the shell is arranged on one side, far away from the printed circuit board, of the charging coil and is fixedly connected with the shell body.
Preferably, a groove for accommodating the fan is formed in the bottom of the inner side of the housing body, an air duct communicated with the groove is formed by extending outwards from one side of the housing body, which is close to the groove, and an air outlet of the air duct faces to the housing upper cover.
Preferably, the bottom of the housing body is outwardly convex corresponding to the region of the recess.
Preferably, a plurality of extension platforms are arranged on the inner wall of the shell body, a plurality of first screw holes are formed in the extension platforms, second holes corresponding to the first screw holes are formed in the printed circuit board, and each first screw penetrates through the corresponding second hole and is installed in the first screw hole.
Preferably, a side of each of the extension platforms facing the printed circuit board is located on the same plane.
Preferably, the printed circuit board is integrated with an over-temperature protection circuit, and the over-temperature protection circuit is connected with the upper cover of the shell through a pin.
Preferably, the printed circuit board is integrated with a plurality of electronic components, and a receiving cavity for receiving each electronic component is formed on one side of the support plate facing the printed circuit board.
Preferably, a plurality of positioning columns are arranged at one side of the bottom of the shell body, which faces the printed circuit board, main positioning holes and auxiliary positioning holes corresponding to the positioning columns respectively are formed in the printed circuit board, and the positioning columns penetrate through the main positioning holes and the auxiliary positioning holes respectively.
Preferably, a slot is formed in the side edge of the printed circuit board, and ribs corresponding to the slot are arranged on the inner wall of the shell body.
Preferably, an adhesive is coated on a side of the heat dissipation plate facing the support plate, and the heat dissipation plate is fixed to the support plate by the adhesive.
The technical scheme has the following advantages or beneficial effects: the fan used for radiating is built in the wireless charger, so that potential safety hazards caused by overhigh temperature can be avoided when the wireless charger is used for wireless charging, an over-temperature protection circuit is integrated on the printed circuit board, and charging can be stopped when the temperature of the charger is overhigh, so that the safety is improved.
Drawings
FIG. 1 is an exploded view of a wireless charger with a built-in fan according to a preferred embodiment of the present utility model;
FIG. 2 is a schematic view of a wireless charger without a housing with a built-in fan according to the preferred embodiment of the present utility model;
FIG. 3 is a schematic diagram showing the structure of the front and back sides of a wireless charger with a built-in fan according to the preferred embodiment of the present utility model;
FIG. 4 is a schematic view showing the internal structure of the housing body according to the preferred embodiment of the present utility model;
FIG. 5 is a schematic view showing the internal structure of the housing body according to the preferred embodiment of the present utility model
Fig. 6 is a schematic diagram showing a structure of a printed circuit board for mounting a wireless charger with a built-in fan according to a preferred embodiment of the present utility model.
Detailed Description
The utility model will now be described in detail with reference to the drawings and specific examples. The present utility model is not limited to the embodiment, and other embodiments may fall within the scope of the present utility model as long as they conform to the gist of the present utility model.
In accordance with the foregoing problems with the prior art, the present utility model provides a wireless charger with a built-in fan, as shown in fig. 1, comprising:
the fan 2 is fixed at the bottom of the inner side of the shell body 1, and a printed circuit board 3 is arranged on one side of the fan 2, which is away from the shell body 1;
the support plate 4 is fixed on one side of the printed circuit board 3, which is away from the fan 2, and one side of the support plate 4, which is away from the printed circuit board 3, is sequentially provided with a heat dissipation plate 5 and a charging coil 6, and the charging coil 6 is welded on the printed circuit board 3 through a pin module 7;
the upper cover 8 of the shell is covered on one side of the charging coil 6 far away from the printed circuit board 3 and is fixedly connected with the shell body 1.
Specifically, in this embodiment, the fan 2 for heat dissipation is built in the wireless charger, so that potential safety hazards caused by too high temperatures of the charging coil 6 and the printed circuit board 3 can be avoided when the wireless charger is used for wireless charging, and a socket 9 connected with an external power supply is arranged on one side of the printed circuit board, as shown in fig. 2, and the pin module 7 is located on the side close to one side of the printed circuit board 3.
In the preferred embodiment of the present utility model, as shown in fig. 1 and 3, a groove 11 for accommodating the fan 2 is provided at the bottom of the inner side of the housing body 1, an air duct 12 communicating with the groove 11 is formed by extending outwards from the side of the housing body 1 close to the groove 11, and an air outlet of the air duct 12 faces the housing upper cover 8.
Specifically, in this embodiment, for better heat dissipation effect, the air duct 12 is formed on the housing body 1, and the air outlet of the air duct 12 faces the housing upper cover 8, so that the air of the fan 2 can blow to the housing upper cover 8, and heat dissipation efficiency is improved.
In the preferred embodiment of the present utility model, as shown in fig. 1, the bottom of the housing body 1 is protruded outwardly corresponding to the area of the recess 11.
In a preferred embodiment of the present utility model, as shown in fig. 1, a plurality of extension platforms 13 are disposed on the inner wall of the housing body 1, a plurality of first screw holes are disposed on the extension platforms 13, openings corresponding to the first screw holes are disposed on the printed circuit board 3, and each first screw 100 is installed in the first screw hole through the corresponding opening.
Similarly, the extension platform is provided with a second screw hole, the printed circuit board and the upper cover of the shell are provided with holes corresponding to the second screw hole, and the second screw 200 is respectively installed in the second screw hole through the holes of the printed circuit board and the upper cover of the shell.
In the preferred embodiment of the utility model, the sides of the extension platforms 13 facing the printed circuit board 3 are on the same plane.
Specifically, in the present embodiment, an extension stage 13 is provided in the housing body 1 to support the printed circuit board 3, and the printed circuit board 3 is fixed by a plurality of first screws. And in order to prevent the printed circuit board 3 from tilting, the extended lands 13 require a certain flatness, so the surfaces of the extended lands 13 are located on the same plane.
In the preferred embodiment of the present utility model, the printed circuit board 3 is integrated with an over-temperature protection circuit, and the over-temperature protection circuit is connected with the upper cover 8 of the housing through the pin.
Specifically, in this embodiment, for safety during charging, an over-temperature protection circuit is further integrated on the printed circuit board 3, so that over-temperature protection can be performed when the internal temperature of the charger is too high.
In the preferred embodiment of the present utility model, as shown in fig. 1, a plurality of electronic components are integrated on the printed circuit board 3, and a receiving cavity 41 for receiving each electronic component is provided on a side of the support plate 4 facing the printed circuit board 3.
Specifically, in this embodiment, the electronic components of the integrated circuit on the printed circuit board 3 are not the main utility model points of the present utility model, and the electronic components are complex, so that the electronic components are not shown in the drawings for the sake of neatness and easy viewing.
In a preferred embodiment of the present utility model, as shown in fig. 1 and 6, a plurality of positioning posts 14 are disposed at a side of the bottom of the housing body 1 facing the printed circuit board 3, and a main positioning hole 31 and an auxiliary positioning hole 32 corresponding to each positioning post 14 are disposed on the printed circuit board 3, and each positioning post 14 passes through the main positioning hole 31 and the auxiliary positioning hole 32.
Specifically, the positioning column 14 may be disposed at the bottom of the housing body 1, in this embodiment, the positioning column 14 is preferably disposed on the extension platform 13, so that an internal space can be saved; the main locating hole 31 is a circular hole, the auxiliary locating hole 32 is a kidney-shaped hole, and the connecting line of the circle centers of the two semi-circles of the kidney-shaped hole passes through the circle center of the circular hole, so that the locating is more accurate.
In the preferred embodiment of the present utility model, as shown in fig. 5 and 6, the side of the printed circuit board 3 is provided with slots 33, 34, and the inner wall of the housing body 1 is provided with ribs 15, 16 corresponding to the slots.
In the preferred embodiment of the present utility model, the side of the heat dissipation plate 5 facing the support plate 4 is coated with an adhesive, and the heat dissipation plate 5 is fixed to the support plate 4 by the adhesive.
The foregoing is merely illustrative of the preferred embodiments of the present utility model and is not intended to limit the embodiments and scope of the present utility model, and it should be appreciated by those skilled in the art that equivalent substitutions and obvious variations may be made using the description and illustrations herein, which should be included in the scope of the present utility model.
Claims (10)
1. A wireless charger with a built-in fan, comprising:
the fan is fixed at the bottom of the inner side of the shell body, and a printed circuit board is erected on one side of the fan, which is away from the shell body;
the support plate is fixed on one side of the printed circuit board, which is far away from the fan, and a heat dissipation plate and a charging coil are sequentially arranged on one side of the support plate, which is far away from the printed circuit board, and the charging coil is welded on the printed circuit board through a pin module;
and the upper cover of the shell is arranged on one side, far away from the printed circuit board, of the charging coil and is fixedly connected with the shell body.
2. The wireless charger of claim 1, wherein the bottom of the inner side of the housing body is provided with a groove for accommodating the fan, a side of the housing body close to the groove extends outwards to form an air duct communicated with the groove, and an air outlet of the air duct faces the housing upper cover.
3. The wireless charger of claim 2, wherein the bottom of the housing body is outwardly convex corresponding to the region of the recess.
4. The wireless charger of claim 1, wherein a plurality of extension platforms are arranged on the inner wall of the housing body, a plurality of first screw holes are formed in the extension platforms, second openings corresponding to the first screw holes are formed in the printed circuit board, and each first screw is installed in the first screw hole through the corresponding second opening.
5. The wireless charger of claim 4 wherein the side of each of said extension platforms facing said printed circuit board is on the same plane.
6. The wireless charger of claim 1 wherein the printed circuit board has an over-temperature protection circuit integrated thereon, the over-temperature protection circuit being connected to the housing upper cover by a pin.
7. The wireless charger of claim 1 wherein said printed circuit board has a plurality of electronic components integrated thereon, and wherein a side of said support plate facing said printed circuit board has a receiving cavity for receiving each of said electronic components.
8. The wireless charger of claim 1, wherein a plurality of positioning posts are provided on a side of the bottom of the housing body facing the printed circuit board, and a main positioning hole and an auxiliary positioning hole are provided on the printed circuit board, the main positioning hole and the auxiliary positioning hole respectively correspond to the positioning posts, and the positioning posts respectively pass through the main positioning hole and the auxiliary positioning hole.
9. The wireless charger of claim 1, wherein the side of the printed circuit board is provided with a slot, and the inner wall of the housing body is provided with ribs corresponding to the slot.
10. The wireless charger of claim 1, wherein a side of the heat sink facing the support plate is coated with an adhesive, the heat sink being secured to the support plate by the adhesive.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320962883.9U CN220172925U (en) | 2023-04-25 | 2023-04-25 | Wireless charger with built-in fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320962883.9U CN220172925U (en) | 2023-04-25 | 2023-04-25 | Wireless charger with built-in fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220172925U true CN220172925U (en) | 2023-12-12 |
Family
ID=89064290
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320962883.9U Active CN220172925U (en) | 2023-04-25 | 2023-04-25 | Wireless charger with built-in fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220172925U (en) |
-
2023
- 2023-04-25 CN CN202320962883.9U patent/CN220172925U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |