CN210137204U - Wireless charger - Google Patents
Wireless charger Download PDFInfo
- Publication number
- CN210137204U CN210137204U CN201921362545.1U CN201921362545U CN210137204U CN 210137204 U CN210137204 U CN 210137204U CN 201921362545 U CN201921362545 U CN 201921362545U CN 210137204 U CN210137204 U CN 210137204U
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- circuit board
- wireless charger
- coil module
- heat dissipation
- base
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Abstract
The utility model discloses a wireless charger, including casing, circuit board, coil module and radiating part, the casing is equipped with accommodation space, the circuit board the coil module with the radiating part all set up in the accommodation space, the circuit board is equipped with dodges the portion, the coil module with the circuit board electricity is connected, just at least some of coil module is located dodge in the portion, the radiating part with the coil module supports and leans on. The utility model discloses an among the wireless charger, the circuit board is equipped with dodges the portion, and at least some of coil module is located this dodges the portion, though need set up the heat dissipation part in this wireless charger in order to realize the heat dissipation, but the coil module can set up with the space that the circuit board occupy, and consequently the space that coil module and circuit board occupy jointly is littleer for the thickness of whole wireless charger reduces.
Description
Technical Field
The utility model relates to a technical field that charges especially relates to a wireless charger.
Background
Along with mobile terminal constantly develops to the sclausura orientation, wireless charging technology has received more and more attention, adopts wireless charging technology back, need not set up the mouth that charges on mobile terminal's the shell for mobile terminal's outward appearance feel, waterproof nature etc. are better.
At present, a mature wireless charging scheme is realized by adopting an electromagnetic induction principle, and a corresponding wireless charger mainly comprises a coil. When the wireless charger works, the coil is electrified to generate more heat, and the heat can have adverse effects on the reliability of the coil and other parts of the wireless charger.
In order to solve the above problem caused by the heat generated by the coil, a heat sink or a fan may be designed in the wireless charger to dissipate the heat generated by the coil, so that the temperature of the coil can be kept in a lower range, and further, the coil is prevented from generating adverse effects on itself and other parts of the wireless charger after being overheated. However, the thickness of the whole wireless charger increases with the addition of the heat sink or the fan.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a wireless charger to solve the great problem of thickness of wireless charger.
In order to solve the above problem, the utility model adopts the following technical scheme:
the utility model provides a wireless charger, includes casing, circuit board, coil module and radiating part, the casing is equipped with accommodation space, the circuit board the coil module with the radiating part all set up in the accommodation space, the circuit board is equipped with dodges the portion, the coil module with the circuit board electricity is connected, just at least some of coil module is located dodge in the portion, the radiating part with the coil module supports and leans on.
Preferably, in a direction perpendicular to the circuit board, a projection of the coil module and a projection of the circuit board do not overlap with each other.
Preferably, the avoiding portion extends from a surface of the circuit board facing away from the heat dissipation portion to a surface of the circuit board facing toward the heat dissipation portion.
Preferably, the avoiding portion has an arc-shaped inner surface facing the coil module.
Preferably, the side surface of the circuit board, which faces away from the coil module, is an arc-shaped side surface, and the axis of the cylindrical surface where the arc-shaped side surface is located and the axis of the cylindrical surface where the arc-shaped inner surface is located are overlapped with each other.
Preferably, the circuit board is an annular circuit board, or the circuit board is a partially annular circuit board.
Preferably, the housing includes a base and a cover plate connected to the base, the base and the cover plate together form the accommodating space, and the heat dissipation portion abuts against the base.
Preferably, the heat dissipation part is a metal piece, the base is a plastic piece, and the heat dissipation part and the base are integrally formed.
Preferably, one side surface of the circuit board, which is away from the cover plate, is provided with at least one component, and the wireless charger further comprises a heat conduction portion, wherein one side surface of the heat conduction portion abuts against the component, and the other side surface of the heat conduction portion abuts against the heat dissipation portion.
Preferably, the heat dissipation portion abuts against at least a part of the circuit board.
The utility model discloses a technical scheme can reach following beneficial effect:
the utility model discloses an among the wireless charger, the circuit board is equipped with dodges the portion, and at least some of coil module is located this dodges the portion, though need set up the heat dissipation part in this wireless charger in order to realize the heat dissipation, but the coil module can set up with the space that the circuit board occupy, and consequently the space that coil module and circuit board occupy jointly is littleer for the thickness of whole wireless charger reduces.
Drawings
The accompanying drawings, which are described herein, serve to provide a further understanding of the invention and constitute a part of this specification, and the exemplary embodiments and descriptions thereof are provided for explaining the invention without unduly limiting it. In the drawings:
fig. 1 is a cross-sectional view of a wireless charger according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a circuit board in the wireless charger disclosed in the embodiment of the present invention.
Description of reference numerals:
100-shell, 110-containing space, 120-base, 130-cover plate, 200-circuit board, 210-avoiding part, 211-arc inner surface, 220-arc side, 300-coil module, 310-coil, 320-magnetic sheet, 400-heat dissipation part, 500-component and 600-heat conduction part.
Detailed Description
To make the purpose, technical solution and advantages of the present invention clearer, the following will combine the embodiments of the present invention and the corresponding drawings to clearly and completely describe the technical solution of the present invention. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The technical solutions disclosed in the embodiments of the present invention are described in detail below with reference to the accompanying drawings.
As shown in fig. 1 and 2, the embodiment of the present invention discloses a wireless charger, which can realize the charging operation of a mobile terminal. The mobile terminal may be a smartphone, a tablet computer, an e-book reader, or a wearable device. Of course, the mobile terminal may also be other devices, and the embodiment of the present invention does not limit this. Specifically, the wireless charger may specifically include a housing 100, a circuit board 200, a coil module 300, and a heat dissipation part 400.
The housing 100 is a mounting base for components included in the wireless charger, and the housing 100 can support the mobile terminal, the housing 100 is provided with an accommodating space 110, and the circuit board 200, the coil module 300 and the heat dissipation portion 400 are all disposed in the accommodating space 110. In an embodiment, the casing 100 may include a base 120 and a cover 130 connected to the base 120, the base 120 and the cover 130 together form the accommodating space 110, and the mobile terminal may be supported by the cover 130. It should be noted that, the shape, size, and other structural parameters of the base 120 and the cover 130 can be selected according to practical situations, and the present invention is not limited thereto. Optionally, the base 120 is removably coupled to the cover 130 to facilitate assembly and maintenance of the wireless charger.
At least one component 500 can be installed on the circuit board 200, and the components 500 are electrically connected with the circuit board 200 to realize the preset function of the wireless charger. The coil module 300 is electrically connected to the circuit board 200 so as to supply current to the coil module 300 and adjust the operating state of the coil module 300. Alternatively, the coil module 300 may include a coil 310 and a magnetic sheet 320, the coil 310 being disposed on the magnetic sheet 320. The heat dissipation portion 400 abuts against the coil module 300 (specifically, the magnetic sheet 320), the heat dissipation portion 400 has a heat dissipation capability, and heat generated by the operation of the coil module 300 or other components can be dissipated through the heat dissipation portion 400, so that the overall temperature of the wireless charger can be kept within a lower range. At this time, the mobile terminal is also not easily affected by the temperature of the wireless charger, so that the temperature of the mobile terminal can be kept in a low range.
In the embodiment of the present invention, the circuit board 200 is provided with an avoiding portion 210, and at least a part of the coil module 300 is located in the avoiding portion 210. Although the heat dissipation portion 400 is required to dissipate heat in the wireless charger, the coil module 300 can be disposed by using the space left after the circuit board 200 occupies, so that the space occupied by the coil module 300 and the circuit board 200 together is smaller, and the thickness of the entire wireless charger is reduced.
The avoiding portion 210 may be a groove structure recessed with respect to one side surface of the circuit board 200. In order to further reduce the space occupied by the coil module 300, the avoiding portion 210 may extend from a surface of the circuit board 200 facing away from the heat dissipation portion 400 to a surface of the circuit board 200 facing the heat dissipation portion 400. Referring to fig. 1, after the configuration, the thickness H of the wireless charger is H1+ H2+ H3+ H4, where H1 is the thickness of the base 120, H2 is the distance between the side of the coil 310 facing the cover plate 130 and the side of the cover plate 130 away from the coil 310, H3 is the thickness of the coil module 300, and H4 is the thickness of the heat dissipation portion 400. It can be seen that the thickness of wireless charger is basically irrelevant with the thickness of circuit board 200, consequently compares in current wireless charger, the embodiment of the utility model provides a wireless charger's thickness is littleer.
In order to further reduce the thickness of the wireless charger, optionally, the projection of the coil module 300 and the projection of the circuit board 200 do not overlap each other in a direction perpendicular to the circuit board 200. After the arrangement, there is no special requirement for the distance between the coil module 300 and the circuit board 200 in the direction perpendicular to the circuit board 200, so when designing the installation position of the coil module 300 in the housing 100, it is basically not necessary to consider whether the distance between the circuit board 200 and the coil module 300 meets the requirement, and therefore the coil module 300 can be made to be as close to the base 120 as possible, so that the thickness of the whole wireless charger is smaller.
Considering that the coil module 300 is generally a circular structure, the structure of the avoiding portion 210 can be adapted to the structure of the coil module 300, so that the area of the portion of the circuit board 200, which can be used for arranging the component 500, is larger, the arrangement requirement of the component 500 is met, and meanwhile, the space waste of the circuit board 200 cannot occur. Specifically, as shown in fig. 2, the relief portion 210 has an arc-shaped inner surface 211, and the arc-shaped inner surface 211 faces the coil module 300. At this time, the arc-shaped inner surface 211 of the relief portion 210 may be as close as possible to the coil module 300, so that the circuit board 200 has a larger size in a limited space to dispose the component 500. Therefore, the scheme can meet the arrangement requirement of the components 500, and can reduce the space occupied by the circuit board 200 as much as possible, so that the whole occupied space of the wireless charger is smaller.
Further, the side of the circuit board 200 facing away from the coil module 300 is an arc-shaped side 220, and the axis of the cylindrical surface where the arc-shaped side 220 is located coincides with the axis of the cylindrical surface where the arc-shaped inner surface 211 is located. In other words, the arcuate side surface 220 may be at least a portion of one cylindrical surface and the arcuate inner surface 211 may be at least a portion of another cylindrical surface, the axes of the two cylindrical surfaces being coincident with each other. When the structure is adopted, the arc-shaped side surface 220 of the circuit board 200 can be matched with the appearance of the wireless charger, so that the arc-shaped side surface 220 of the circuit board 200 is close to the inner surface of the shell 100 as much as possible, and further, the space in the shell 100 is more fully utilized to arrange the component 500. Of course, according to specific requirements, the side of the circuit board away from the coil module 300 may also be a side of another shape, and at this time, it is only necessary to ensure that the arc-shaped inner surface 211 is at least a part of the cylindrical surface.
When the circuit board 200 is provided with the avoiding portion 210, the circuit board 200 may be an annular circuit board, and the avoiding portion 210 may be provided in the middle of the circuit board 200. However, for the wireless charger, there are not many components 500 disposed on the circuit board 200, so when the circuit board 200 is disposed as a ring-shaped circuit board, most of the structure on the circuit board 200 will be wasted, and a part of the space occupied by the circuit board 200 will be wasted. To solve this problem, the circuit board 200 may be provided as a partially annular circuit board. Specifically, the circuit board 200 may be a half-ring circuit board, an 3/4 ring circuit board, a 4/5 ring circuit board, and the like, and the extending length of the circuit board 200 may be flexibly adjusted according to practical requirements, which is not limited herein. Thus, one side of the circuit board 200 can be free of space, so that more space in the housing 100 can be used for arranging other components, thereby improving the utilization rate of the space in the housing 100. Alternatively, at least a portion of the heat dissipation member 400 may extend to one side of the circuit board 200, so that the size of the heat dissipation member 400 is further increased, and the heat dissipation effect thereof is improved.
In an alternative embodiment, the heat dissipation portion 400 may abut against the base 120, so that the heat absorbed by the heat dissipation portion 400 can be directly conducted out through the base 120, thereby further optimizing the heat dissipation effect. Further, the heat sink 400 may be a metal member (e.g., an aluminum plate), and the base 120 may be a plastic member. Preferably, the heat dissipation part 400 is integrally formed (e.g., integrally injection-molded) with the base 120, so that heat on the heat dissipation part 400 can be more quickly transferred to the base 120. In addition, when the wireless charger is assembled, the heat dissipation part 400 and the base 120 can be assembled with other parts as one component, so that the structure can simplify the assembling operation of the wireless charger and improve the assembling efficiency of the wireless charger.
It is mentioned above that at least one component 500 may be mounted on the circuit board 200, and in order to facilitate heat dissipation, the at least one component 500 may be disposed on a side surface of the circuit board 200 facing away from the cover 130, and meanwhile, the wireless charger may further include a heat conducting portion 600, where a side surface of the heat conducting portion 600 abuts against the component 500, and another side surface abuts against the heat dissipating portion 400. The heat generated when the component 500 operates can be quickly conducted to the heat dissipation portion 400 through the heat conduction portion 600, and then dissipated through the heat dissipation portion 400. Alternatively, the heat conduction portion 600 may be a heat conduction paste. Further, all the components 500 mounted on the circuit board 200, which generate heat, may be disposed on the surface of the circuit board 200 on the side away from the cover 130, so that the temperature of the wireless charger may be more reliably maintained in a low range.
In order to further improve the heat dissipation effect, the heat dissipation portion 400 may abut against at least a portion of the circuit board 200, so that heat on the circuit board 200 may be dissipated through the heat dissipation portion 400.
The utility model discloses what the key description in the above embodiment is different between each embodiment, and different optimization characteristics are as long as not contradictory between each embodiment, all can make up and form more preferred embodiment, consider that the literary composition is succinct, then no longer describe here.
The above description is only an example of the present invention, and is not intended to limit the present invention. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.
Claims (10)
1. The utility model provides a wireless charger, characterized in that, includes casing (100), circuit board (200), coil module (300) and heat dissipation portion (400), casing (100) are equipped with accommodation space (110), circuit board (200) coil module (300) with heat dissipation portion (400) all set up in accommodation space (110), circuit board (200) are equipped with dodges portion (210), coil module (300) with circuit board (200) electricity is connected, just at least some of coil module (300) are located dodge portion (210), heat dissipation portion (400) with coil module (300) support and lean on.
2. The wireless charger according to claim 1, wherein a projection of the coil module (300) and a projection of the circuit board (200) do not overlap each other in a direction perpendicular to the circuit board (200).
3. The wireless charger according to claim 1, wherein the escape portion (210) extends from a surface of the circuit board (200) facing away from the heat sink portion (400) to a surface of the circuit board (200) facing toward the heat sink portion (400).
4. The wireless charger of claim 1, wherein the bypass portion (210) has an arcuate inner surface (211), the arcuate inner surface (211) facing the coil module (300).
5. The wireless charger according to claim 4, wherein the side of the circuit board (200) facing away from the coil module (300) is an arc-shaped side (220), and the axis of the cylindrical surface on which the arc-shaped side (220) is located and the axis of the cylindrical surface on which the arc-shaped inner surface (211) is located coincide with each other.
6. The wireless charger of claim 1, wherein the circuit board (200) is a loop circuit board, or wherein the circuit board (200) is a partial loop circuit board.
7. The wireless charger according to claim 1, wherein the housing (100) comprises a base (120) and a cover plate (130) connected to the base (120), the base (120) and the cover plate (130) together form the receiving space, and the heat dissipation portion (400) abuts against the base (120).
8. The wireless charger of claim 7, wherein the heat sink (400) is a metal piece, the base (120) is a plastic piece, and the heat sink (400) is integrally formed with the base (120).
9. The wireless charger according to claim 7, wherein a side surface of the circuit board (200) facing away from the cover plate (130) is provided with at least one component (500), the wireless charger further comprises a heat conducting portion (600), a side surface of the heat conducting portion (600) abuts against the component (500), and the other side surface abuts against the heat dissipating portion (400).
10. The wireless charger of claim 1, wherein the heat sink (400) abuts at least a portion of the circuit board (200).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921362545.1U CN210137204U (en) | 2019-08-21 | 2019-08-21 | Wireless charger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921362545.1U CN210137204U (en) | 2019-08-21 | 2019-08-21 | Wireless charger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210137204U true CN210137204U (en) | 2020-03-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921362545.1U Active CN210137204U (en) | 2019-08-21 | 2019-08-21 | Wireless charger |
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| Country | Link |
|---|---|
| CN (1) | CN210137204U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112636479A (en) * | 2020-12-23 | 2021-04-09 | 深圳市威尔丽斯科技有限公司 | Desktop embedded wireless charging equipment |
-
2019
- 2019-08-21 CN CN201921362545.1U patent/CN210137204U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112636479A (en) * | 2020-12-23 | 2021-04-09 | 深圳市威尔丽斯科技有限公司 | Desktop embedded wireless charging equipment |
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