CN209948705U - Wireless charger - Google Patents

Abstract

The embodiment of the utility model relates to the technical field of wireless charging, in particular to a wireless charger, which comprises a shell, wherein an accommodating space is arranged in the shell; the wireless charging module comprises a circuit board and a coil module, and the coil module is arranged in the accommodating space; the panel is arranged on the shell and is positioned above the coil module, a first ventilation opening is formed in one side of the panel, a boss is formed in one side of the panel, which is far away from the coil module, and the coil module is accommodated in the boss; the cooling fan comprises a first air inlet end, and the first air inlet end is communicated with the first air vent. In this way, the embodiment of the utility model provides a can realize that the radiating effect of wireless charger is good, and charging efficiency is also high simultaneously.

Description

Wireless charger

Technical Field

The embodiment of the utility model provides a relate to wireless charging technical field, especially relate to a wireless charger.

Background

With the progress of science and technology and the improvement of living standard of people, people increasingly use electronic equipment, and the convenience of the charging mode of the electronic equipment is concerned. In the prior art, a wireless charger is generally adopted to realize the convenience of charging the electronic device.

The utility model discloses an inventor is realizing the utility model discloses an in-process discovers: at present, in order to meet the heat dissipation requirement when using a wireless charger, the wireless charger is usually provided with a vent for dissipating heat of the wireless charger itself and dissipating heat of an electronic device during charging. However, in order to ensure the heat dissipation effect, a gap is left between the electronic device and the ventilation opening, so that the distance between the electronic device and the coil module in the wireless charger is too far, and the charging efficiency is reduced.

SUMMERY OF THE UTILITY MODEL

To the above-mentioned defect of prior art, the utility model provides a main aim at provides a wireless charger, realizes that the radiating effect of wireless charger is good, and charging efficiency is also high simultaneously.

In order to solve the above technical problem, an embodiment of the present invention adopts a technical solution that: the wireless charger comprises a shell, wherein an accommodating space is formed in the shell; the wireless charging module comprises a circuit board and a coil module, and the coil module is arranged in the accommodating space; the panel is arranged on the shell and is positioned above the coil module, a first ventilation opening is formed in one side of the panel, a boss is formed in one side of the panel, which is far away from the coil module, and the coil module is accommodated in the boss; the cooling fan comprises a first air inlet end, and the first air inlet end is communicated with the first air vent.

Optionally, an accommodating groove is formed in one side, facing the coil module, of the panel, and the accommodating groove is communicated with the inside of the boss.

Optionally, the boss and the receiving groove are both circular.

Optionally, the coil module and the heat dissipation fan are arranged in the accommodating space at intervals or in a stacked manner.

Optionally, the housing includes a base housing and a support member housing forming an included angle with the base housing, a first accommodating space is provided in the base housing, a second accommodating space is provided in the support member housing, and the first accommodating space and the second accommodating space constitute the accommodating space; the coil module is arranged in the second accommodating space, and the heat radiation fan is arranged in the first accommodating space.

Optionally, the housing includes an upper cover and a lower cover, and the upper cover and the lower cover are connected to form the accommodating space; the upper cover is provided with an accommodating hole, the panel is arranged in the accommodating hole, one side of the panel, which is far away from the coil module, is provided with an annular bulge, one side of the annular bulge is provided with a notch, and the notch and the upper cover jointly form a first ventilation opening; the lower cover is provided with a second air vent, the cooling fan is located above the second air vent, the cooling fan further comprises a second air vent end, and the second air vent end is communicated with the second air vent.

Optionally, the number of the second ventilation openings is multiple and is in the shape of a fan blade, and the second ventilation openings are arranged in the lower cover in a circular array structure.

Optionally, the wireless charger further comprises an annular rubber pad, the annular protrusion is provided with an annular groove, and the annular rubber pad is connected in the annular groove.

Optionally, a connecting groove is formed in one side, facing the accommodating space, of the lower cover, the second ventilation opening is located at the bottom of the connecting groove, and the cooling fan is connected to the inside of the connecting groove.

Optionally, a gasket is arranged on one side of the lower cover, which is away from the accommodating space.

The embodiment of the utility model provides a beneficial effect is: be different from prior art's condition, the utility model discloses the panel is provided with the boss, and the boss is provided with the accepting groove again, and the coil module of wireless module of charging is acceptd in the accepting groove. When electronic equipment charges, arrange electronic equipment in on the boss, leave the clearance between electronic equipment and the first vent, the radiating effect is good, and simultaneously, electronic equipment is very close with the coil module in the boss to charging efficiency is also high. Through this kind of mode of setting up, make wireless charger possess the advantage that the radiating effect is good and charging efficiency is high simultaneously.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.

Fig. 1 is a schematic front view of an embodiment of a wireless charger of the present invention;

fig. 2 is an exploded view of an embodiment of the wireless charger of the present invention;

fig. 3 is a schematic diagram of a wireless charging module and a stacked heat dissipation fan plate according to an embodiment of the present invention;

fig. 4 is a schematic diagram of a wireless charging module and a heat dissipation fan plate spaced apart in an embodiment of the present invention;

fig. 5 is a schematic diagram of a wireless charging module and a vertical cooling fan according to an embodiment of the present invention;

fig. 6 is a schematic back view of a boss in an embodiment of the wireless charger of the present invention;

fig. 7 is a cross-sectional view of an embodiment of the wireless charger of the present invention;

fig. 8 is a schematic back view of an embodiment of the wireless charger of the present invention.

Detailed Description

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.

It is to be noted that unless otherwise specified, technical or scientific terms used herein shall have the ordinary meaning as understood by those skilled in the art to which the present invention belongs.

In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience of description and simplicity of description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting.

Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

Referring to fig. 1 and 2, the wireless charger 100 includes: the wireless charging device comprises a shell 200, a wireless charging module 300, a panel 400, a heat dissipation fan 500 and a ring-shaped rubber pad 600. The casing 200 is provided with an accommodating space 201, the wireless charging module 300 comprises a circuit board 32 and a coil module 31, the coil module 31 is accommodated in the accommodating space 201, the panel 400 is arranged on the casing 200 and located above the coil module 31, and the annular rubber mat 600 is connected with the panel 400. When the electronic device needs to be charged, the electronic device can be placed on the panel 400 and the ring-shaped rubber pad 600 and charged through the wireless charging module 300. Meanwhile, the heat dissipation fan 500 is turned on to dissipate heat from the charging electronic device and the wireless charging module 300. The electronic device may be a mobile phone or a tablet computer.

It can be understood that: the ring-shaped rubber pad 600 in the wireless charger 100 may be omitted, and the electronic device may be placed only on the panel 400. As shown in fig. 3 and 4, the wireless charging module 300 and the heat dissipation fan 500 may be stacked or disposed in the accommodating space 201 at intervals.

In other embodiments, as shown in fig. 5, the housing 200 includes a base housing 23 and a support housing 24 forming an included angle with the base housing 23, a first receiving space 231 is provided in the base housing 23, a second receiving space 241 is provided in the support housing 24, and the first receiving space 231 and the second receiving space 241 form a receiving space 201; the coil module 31 is disposed in the second receiving space 241, and the heat dissipation fan 500 is disposed in the first receiving space 231.

With continued reference to fig. 2, the housing 200 includes an upper cover 21 and a lower cover 22, and the upper cover 21 and the lower cover 22 are connected to form the receiving space 201.

As for the upper cover 21 and the panel 400, as shown in fig. 2, an accommodating hole 211 is formed on a side of the upper cover 21 away from the accommodating space 201, and the accommodating hole 211 is located above the wireless charging module 300. An annular protrusion 401 is disposed on a side of the panel 400 away from the coil module 31, and an outer side of the annular protrusion 401 is bonded to an inner side of the receiving hole 211 of the upper cover 21, so that the panel 400 is disposed in the receiving hole 211. One side of the annular protrusion 401 is provided with a notch 411, and the notch 411 and the upper cover 21 together form a first ventilation opening 402. When the electronic device is placed on the panel 400, the annular protrusion 401 supports the electronic device, leaving a gap between the electronic device and the first vent 402. Meanwhile, since the annular protrusion 401 has an annular shape, the first vent 402 may directly communicate with a side of the electronic device facing the panel 400. Therefore, the airflow generated by the heat dissipation fan 500 can directly contact the electronic device to take away the heat, and the heat dissipation effect is better. The annular protrusion 401 is further provided with an annular groove 403, and the annular rubber pad 600 is adhered in the annular groove 403. The ring-shaped rubber pad 600 is used to increase the friction force between the electronic device and the panel 400 when the electronic device is placed on the panel 400, so that the electronic device is placed more stably. Wherein, the annular rubber pad 600 may be made of silica gel or rubber with a large friction force. As shown in fig. 6 and 7, a boss 41 is further disposed on a side of the panel 400 away from the coil module 31, and a receiving groove 42 is disposed on a side of the panel 400 facing the coil module 31, wherein the receiving groove 42 communicates with an inside of the boss 41 for receiving a part of components in the wireless charging module 300.

It can be understood that: the manner of disposing the panel 400 in the receiving hole 211 and the manner of connecting the ring-shaped rubber pad 600 and the ring-shaped groove 403 are not limited to the above description, and may be other manners, which are not described herein again.

As for the lower cover 22, as shown in fig. 2, a side surface of the lower cover 22 facing the accommodating space 201 is provided with a connecting groove 222, and a side surface thereof facing away from the accommodating space 201 is provided with a second ventilation opening 221 communicating with the accommodating space 201. The connection groove 222 is located above the second ventilation opening 221 and connects the heat dissipation fan 500 therein, and the bottom thereof is an arc surface. The airflow generated by the heat dissipation fan 500 can take away the heat of the wireless charging module 300 from the second ventilation opening 221. The arc design at the bottom can increase the gap between the cooling fan 500 and the second air vent 221, thereby enhancing the ventilation effect of the second air vent 221 and improving the cooling effect. Further, the number of the second ventilation openings 221 is plural, and the second ventilation openings 221 are in a shape of a fan blade, and the second ventilation openings 221 are arranged in the lower cover 22 in a circular array structure. The shape and arrangement of the second ventilation opening 221 are the same as those of the fan of the heat dissipation fan 500, so that the wind speed and the wind output at the second ventilation opening 221 are effectively increased, and the heat dissipation effect is further enhanced. In addition, as shown in fig. 8, a gasket 223 is further disposed on a side of the lower cover 22 away from the accommodating space 201, and the gasket 223 can leave a certain gap between the second ventilation opening 221 and a plane on which the wireless charger 100 is placed, so as to further enhance the ventilation effect of the second ventilation opening 221, and simultaneously, the gasket 223 can also play a role in buffering the housing 200, so as to protect the housing 200 when the wireless charger 100 is placed. In addition, a fan button 203 is disposed on a side surface of the lower cover 22, and the fan button 203 is used for controlling the on/off of the heat dissipation fan 500.

It can be understood that: the number, structure and arrangement of the second ventilation openings 221 are not limited to the above description, and may be other numbers, structures and arrangements with the same heat dissipation effect, which are not described herein again.

In some embodiments, the side of the upper cover 21 is provided with a first half groove 212, and the side of the lower cover 22 is provided with a second half groove 224. When the upper cover 21 and the lower cover 22 are connected, the first half-groove 212 and the second half-groove 224 are matched to form the power interface 202. The power interface 202 is used for accessing an external power source to supply power to the wireless charging module 300 and the heat dissipation fan 500.

It should be noted that: the connection of the upper cover 21 and the lower cover 22 and the connection of the connection groove 222 and the heat dissipation fan 500 may be achieved by screwing, bonding, or the like.

It can be understood that: the power interface 202 is not limited to the above description, but may be formed in other manners, such as: the power interface 202 is directly disposed on the upper cover 21 or the lower cover 22.

With continued reference to fig. 1 and 2, the circuit board 32 is annular, and the coil module 31 is located in the middle of the circuit board 32. By integrating the circuit board 32 and the coil module 31 into a whole, the occupied space of the wireless charging module 300 can be reduced, so that the volume of the housing 200 can be reduced in design, and the material cost can be saved.

As shown in fig. 2 and 7, the coil module 31 is placed in the receiving groove 42 of the panel 400, so that the coil module 31 is received in the boss 41, thereby reducing the distance between the coil module 31 and the electronic device on the boss 41 and increasing the charging efficiency. When the electronic device is charged, the electronic device is placed on the boss 41, and a gap is also left between the first ventilation openings 402 of the electronic device, so that the heat dissipation effect is increased. In addition, the coil module 31 includes a transmitting coil 311 and a magnetism isolating sheet 312, where the magnetism isolating sheet 312 is located on a side of the transmitting coil 311 away from the receiving hole 211, and is used to isolate magnetic lines of force emitted by the transmitting coil 311 toward the side away from the receiving hole 211, so that the transmitting coil 311 only emits the magnetic lines of force toward the panel 400, and performs electromagnetic induction with the electronic device located on the panel 400, thereby implementing charging of the electronic device. In addition, the transmitting coil 311 is electrically connected to the circuit board 32 and receives an ac signal generated by the circuit board 32, so as to generate a magnetic field with a frequency of near field communication, and under the action of magnetic field coupling, a receiving coil on the electronic device generates ac power to charge the electronic device.

In some embodiments, the boss 41 and the receiving groove 42 of the panel 400 may both be circular. Since the coil module 31 is generally circular, when the coil module 31 having the same size is accommodated, the circular boss 41 requires a smaller volume, and the area of the air flow generated by the heat dissipation fan 500, which can directly contact the electronic device being charged, is larger, so that the heat dissipation effect is better. Of course, in other embodiments, the boss 41 and the receiving groove 42 may have other shapes, and are not described in detail herein.

With respect to the circuit board 32 described above, the circuit board 32 includes a power port 321, and the power port 321 is located in the power interface 202. An external power source may be plugged into the power port 321 through the power interface 202 to supply power to the circuit board 32. In addition, the circuit board 32 is also electrically connected to the heat dissipation fan 500 and the fan button 203. The heat dissipation fan 500 is powered by an external power source through the circuit board 32. The fan button 203 may be a push switch, and when the fan button 203 is pushed, the heat dissipation fan 500 is connected to the circuit board 32, and when the fan button 203 is pushed again, the heat dissipation fan 500 is disconnected from the circuit board 32.

It can be understood that: the heat dissipation fan 500 may also be directly connected to an external power source, and the external power source supplies power independently.

With continued reference to fig. 1 and 2, the heat dissipation fan 500 includes a first air inlet end 501 and a second air inlet end 502, the first air inlet end 501 is communicated with the first air vent 402, and the second air inlet end 502 is communicated with the second air vent 221. When the first air inlet end 501 is an air inlet end and the second air inlet end 502 is an air outlet end, after the cooling fan 500 is turned on, the external cold air flow of the wireless charger 100 enters the accommodating space 201 of the housing 200 from the first air vent 402, the cold air flow is changed to take away the heat in the bottom of the electronic device and the accommodating space 201 to form a hot air flow, the hot air flow is accelerated by the wind wheel of the cooling fan 500 and then flows to the second air vent 221, and the hot air flow flows to the outside through the second air vent 221, so that the heat dissipation is realized. On the contrary, when the first air inlet end 501 is an air outlet end and the second air inlet end 502 is an air inlet end, the air flow flows into the accommodating space 201 from the second air vent 221, and then flows out from the first air vent 402 to take away the heat, thereby realizing heat dissipation. In both cases, when the heat dissipation fan 500 is turned on, airflow flows through the first ventilation opening 402, and then the airflow drives the air at the bottom of the electronic device to take away the heat generated by the electronic device, so as to achieve the effect of dissipating heat of the electronic device during charging.

In the embodiment of the present invention, the utility model provides an in the panel 400 be provided with boss 41, boss 41 is provided with accepting groove 42 again, and wireless charging module 300's coil module 31 is acceptd in accepting groove 42. When the electronic device is charged, the electronic device is placed on the boss 41, a gap is left between the electronic device and the first vent 402, the heat dissipation effect is good, and meanwhile, the electronic device is very close to the coil module 31 in the boss 41, so that the charging efficiency is also high. Through this kind of mode of setting up, make wireless charger possess the advantage that the radiating effect is good and charging efficiency is high simultaneously.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the scope of the embodiments of the present invention, and are intended to be covered by the claims and the specification. In particular, the technical features mentioned in the embodiments can be combined in any way as long as there is no structural conflict. The present invention is not limited to the particular embodiments disclosed herein, but encompasses all technical solutions falling within the scope of the claims.

Claims (10)

1. A wireless charger, comprising:

the device comprises a shell (200), wherein an accommodating space (201) is formed in the shell (200);

the wireless charging module (300) comprises a circuit board (32) and a coil module (31), and the coil module (31) is arranged in the accommodating space (201);

the panel (400) is arranged on the shell (200) and is positioned above the coil module (31), the panel (400) is provided with a first ventilation opening (402), a boss (41) is arranged on one side, away from the coil module (31), of the panel (400), and the coil module (31) is accommodated in the boss (41);

the heat dissipation fan (500) comprises a first air inlet end (501), and the first air inlet end (501) is communicated with the first ventilation opening (402).

2. The wireless charger according to claim 1, wherein a side of the panel (400) facing the coil module (31) is provided with a receiving groove (42), and the receiving groove (42) is communicated with the inside of the boss (41).

3. The wireless charger of claim 2, wherein the boss (41) and the receiving slot (42) are both circular.

4. The wireless charger according to claim 1, wherein the coil module (31) and the heat dissipation fan (500) are disposed in the receiving space (201) at intervals or in a stacked manner.

5. The wireless charger according to claim 1, wherein the housing (200) comprises a base housing (23) and a support housing (24) forming an included angle with the base housing (23), a first receiving space (231) is provided in the base housing (23), a second receiving space (241) is provided in the support housing (24), and the first receiving space (231) and the second receiving space (241) constitute the receiving space (201);

the coil module (31) is disposed in the second receiving space (241), and the heat dissipation fan (500) is disposed in the first receiving space (231).

6. The wireless charger according to any one of claims 1 to 5, wherein the housing (200) comprises an upper cover (21) and a lower cover (22), the upper cover (21) and the lower cover (22) being connected to form the receiving space (201);

the upper cover (21) is provided with an accommodating hole (211), the panel (400) is arranged in the accommodating hole (211), one side, away from the coil module (31), of the panel (400) is provided with an annular protrusion (401), one side of the annular protrusion (401) is provided with a notch (411), and the notch (411) and the upper cover (21) jointly form a first ventilation opening (402);

the lower cover (22) is provided with a second air vent (221), the heat dissipation fan (500) is located above the second air vent (221), the heat dissipation fan (500) further comprises a second air vent end (502), and the second air vent end (502) is communicated with the second air vent (221).

7. The wireless charger according to claim 6, wherein the number of the second vents (221) is a plurality of flabellum-shaped vents, and the second vents (221) are arranged on the lower cover (22) in a circular array structure.

8. The wireless charger according to claim 6, further comprising an annular rubber pad (600), wherein the annular protrusion (401) is provided with an annular groove (403), and the annular rubber pad (600) is connected in the annular groove (403).

9. The cordless charger of claim 6, wherein a side of the lower cover (22) facing the receiving space (201) is provided with a coupling groove (222), the second ventilation opening (221) is located at a bottom of the coupling groove (222), and the heat dissipation fan (500) is coupled to the coupling groove (222).

10. The wireless charger according to claim 6, wherein a gasket (223) is provided on a side of the lower cover (22) facing away from the receiving space (201).

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