CN117750703A - Wireless charging device - Google Patents

Abstract

The invention provides a wireless charging device. The wireless charging device comprises a device body, a cover body, a fan module and a wind flow adjusting structure. The device body comprises a top wall, a bottom wall and a first air flow outlet. The first air flow outlet is arranged on the top wall. An air outlet channel and a second air outlet are defined between the cover body and the device body, and the second air outlet is positioned below the bottom wall. The fan module is arranged in the cover body and provided with an air outlet facing the air flow channel. The wind flow adjusting structure is arranged on the bottom wall and is positioned in the wind flow channel. The wind flow adjusting structure extends towards the direction close to the air outlet and corresponds to the air outlet. The wind flow adjusting structure divides the wind flow generated by the fan module into a first part of wind flow and a second part of wind flow with different flow directions and flows out of the first wind flow outlet and the second wind flow outlet respectively.

Description

Wireless charging device

Technical Field

The present disclosure relates to charging devices, and particularly to a wireless charging device.

Background

In today's society, portable electronic devices, such as: smart phones have become an integral part of life, and are used for food, clothing, living, sports, and happiness, each of which is related to portable electronic devices. Since the portable electronic device is powered by the built-in battery, the user needs to charge the battery inside the portable electronic device after the battery is exhausted, so that the portable electronic device can continuously operate.

Generally, the charging method of the portable electronic device includes: and (5) wired charging and wireless charging. With the progress of wireless charging technology, wireless charging modules are becoming one of the standard devices of portable electronic devices. When the portable electronic device is charged, a user can put the portable electronic device on the wireless charging device, and the electromagnetic field is emitted by the transmitting coil in the wireless charging device, and the induction coil in the portable electronic device generates current through the change of magnetic flux after inducing the electromagnetic field so as to charge.

The charging efficiency of the wireless charging device is closely related to the working temperature, when the working temperature of the wireless charging device is too high, the wireless charging efficiency is poor, or the circuit board self-protection program is started to cause the problem that continuous charging cannot be performed, so that the required charging time of the electronic device to be charged is increased, or electric energy cannot be obtained continuously. The conventional wireless charging device has low output power, so that the heat generated during charging is not high, and most of the heat is dissipated by natural flow, but as the power which can be output by the wireless charging device increases, the heat generated during charging also increases, and additional heat dissipation means are necessary to be equipped.

Therefore, how to improve the heat dissipation efficiency of the wireless charging device is a focus of attention of those skilled in the art.

Disclosure of Invention

One of the objectives of the present invention is to provide a wireless charging device, which adjusts the airflow generated by a fan module through an airflow adjusting structure, so that the area of the airflow passing through the device is increased, and the heat dissipation efficiency is improved.

Other objects and advantages of the present invention will be further appreciated from the technical features disclosed in the present invention.

In order to achieve one or a part or all of the above objects or other objects, the present invention provides a wireless charging device, which comprises a device body, a housing, a fan module and a wind flow adjusting structure. The device body comprises a top wall, a bottom wall and a first air flow outlet. The top wall and the bottom wall are opposite to each other, and the first air flow outlet is formed in the top wall. The cover is disposed on the device body. An air outlet flow channel and a second air outlet are defined between the cover body and the device body. The wind flow channel is communicated with the first wind flow outlet and the second wind flow outlet, and the second wind flow outlet is positioned below the bottom wall. The fan module is arranged in the cover body. The fan module is provided with an air outlet facing the air flow channel. The wind flow adjusting structure is arranged on the bottom wall and is positioned in the wind flow channel. The wind flow adjusting structure extends towards the direction close to the air outlet and corresponds to the air outlet. When the wind flow generated by the fan module is blown out from the air outlet, the wind flow adjusting structure divides the wind flow into a first part of wind flow and a second part of wind flow with different flow directions, so that the first part of wind flow and the second part of wind flow respectively flow out from the first wind flow outlet and the second wind flow outlet.

In an embodiment of the invention, the wind flow adjusting structure includes an inner concave surface close to the device body and an outer convex surface far away from the device body, the device body further includes a guiding sidewall connected between the top wall and the bottom wall, the guiding sidewall corresponds to the first wind flow outlet, the cover body includes an inner edge surface, the outer convex surface, the inner edge surface and the guiding sidewall define a first section wind flow channel in the wind flow channel, the first section wind flow channel is communicated with the first wind flow outlet, and the first part wind flow flows out from the first wind flow outlet through the first section wind flow channel.

In an embodiment of the invention, the fan module includes an upper surface opposite to the bottom wall, and the concave surface, the upper surface and the bottom wall define a second section air flow channel in the air flow channel, the second section air flow channel is communicated with the second air flow outlet, and the second part of the air flow flows out of the second air flow outlet through the second section channel.

In an embodiment of the invention, the wireless charging device further includes a plurality of deflector bodies disposed on an inner edge surface of the cover body and located in the first section wind flow channels, wherein a flow guiding channel is disposed between two adjacent deflector bodies in the deflector bodies, and the first part of wind flows through the flow guiding channels during the process of flowing out from the first wind flow outlet through the first section wind flow channels.

In an embodiment of the invention, the wireless charging device further includes a plurality of heat dissipation fins, the heat dissipation fins are disposed on a bottom wall of the device body, the heat dissipation fins are adjacent to the cover body, and the second part of the air flows out from the second air flow outlet and passes through the heat dissipation fins.

In an embodiment of the invention, the wireless charging device further includes a plurality of guide grooves located on a top wall of the device body, and when the device to be charged is placed on the top wall of the device body, a plurality of channels are formed between the device to be charged and the guide grooves, and the first portion of the wind flows out from the first wind flow outlet and passes through the channels.

In an embodiment of the invention, the air flow adjusting structure corresponds to the air outlet, so that the air outlet is divided into a first part of air outlet and a second part of air outlet, and the caliber of the second part of air outlet is larger than that of the first part of air outlet.

In an embodiment of the invention, the wireless charging device further includes a transmitting coil unit and a circuit board, and the transmitting coil unit and the circuit board are disposed in the device body.

In an embodiment of the invention, the wireless charging device further includes a power input connection port, wherein the power input connection port is disposed in the device body, and a portion of the power input connection port is exposed outside the device body.

According to the wireless charging device provided by the embodiment of the invention, the wind flow adjusting structure is arranged at the air outlet of the fan module, when wind flow generated by the fan module is blown out through the air outlet, the wind flow adjusting structure divides the wind flow into at least two wind flows with different flowing directions, and the wind flows are blown to wind flow channels of different sections according to the set directions, so that the area of the region where the wind flow passes through the device body is enlarged, the wind flow can effectively exchange heat on a path and leave the device body, and under the structural design, the heat dissipation efficiency of the device body can be greatly improved, and meanwhile, the device to be charged on the device body can also dissipate heat, so that the effect of the device to be charged is prevented from being influenced by the temperature rise of the device to be charged.

The foregoing and other objects, features and advantages of the invention will be apparent from the following more particular description of preferred embodiments, as illustrated in the accompanying drawings.

Drawings

Fig. 1 is a schematic view of an external structure of a wireless charging device according to an embodiment of the invention.

Fig. 2 is an exploded view of the wireless charging device shown in fig. 1.

Fig. 3 is a schematic cross-sectional view along the line AA shown in fig. 1.

Fig. 4 is a schematic cross-sectional view along the line BB shown in fig. 1.

The reference numerals are as follows:

1: wireless charging device

10: device body

11: cover body

12: fan module

13: air flow adjusting structure

14: deflector body

15: heat radiation fin

16: guide groove

17: power input connection port

100: device to be charged

101: top wall

102: bottom wall

103: diversion sidewall

110: inner edge surface

120: air outlet

121: upper surface of

131: concave surface

132: convex surface

140: diversion channel

160: channel

1201: first part air outlet

1202: second part air outlet

A1: first part of wind flow

A2: second part of wind flow

C: wind flow channel

C1: first section wind flow channel

C2: second section wind flow channel

F1: first wind flow outlet

F2: second wind flow outlet

Detailed Description

Referring to fig. 1 to 4, fig. 1 is a schematic view illustrating an appearance structure of a wireless charging device according to an embodiment of the invention. Fig. 2 is an exploded view of the wireless charging device shown in fig. 1. Fig. 3 is a schematic cross-sectional view along the line AA shown in fig. 1. Fig. 4 is a schematic cross-sectional view along the line BB shown in fig. 1.

As shown in fig. 1 to 4, the wireless charging device 1 of the present embodiment includes a device body 10, a cover 11, a fan module 12, and a wind flow adjustment structure 13. The device body 10 includes a top wall 101, a bottom wall 102, and a first wind flow outlet F1. The top wall 101 and the bottom wall 102 are opposite to each other, and the first wind outlet F1 is formed in the top wall 101. The cover 11 is disposed on the device body 10, and when the cover 11 and the device body 10 are assembled together, an air outlet channel C and a second air outlet F2 are defined between the cover 11 and the device body 10. The wind flow channel C is connected between the first wind flow outlet F1 and the second wind flow outlet F2, and the second wind flow outlet F2 is located below the bottom wall 102 of the device body 10. The fan module 12 is disposed in the housing 11, and the fan module 12 has an air outlet 120 facing the air flow channel C. The airflow adjusting structure 13 is disposed on the bottom wall 102 of the device body 10 and located in the airflow channel C. The airflow adjusting structure 13 extends toward the air outlet 120 near the fan module 12 to correspond to the air outlet 120.

In the present embodiment, when the air flow generated by the fan module 12 is blown out from the air outlet 120, the air flow immediately passes through the air flow adjusting structure 13, and the air flow adjusting structure 13 divides the air flow into a first portion of air flow A1 and a second portion of air flow A2 with different flow directions, such that the first portion of air flow A1 flows out from the first air flow outlet F1 located at the top wall 101 of the device body 10, and the second portion of air flow A2 flows out from the second air flow outlet F2 located below the bottom wall 102 of the device body 10.

It should be noted that, the splitting of the airflow into the first portion of the airflow A1 and the second portion of the airflow A2 by the airflow adjusting structure 13 according to the present embodiment is only one embodiment of the present invention, and the present invention is not limited thereto, and in other embodiments, the shape of the airflow adjusting structure 13 may be appropriately changed according to the actual situation requirement, so as to split the airflow into more than two portions.

The following is a further description of other detailed configurations of the wireless charging device 1 according to the embodiment of the present invention.

As shown in fig. 1 to 4, the airflow adjusting structure 13 of the present embodiment includes a concave surface 131 and a convex surface 132. The concave surface 131 is located on one side closer to the device body 10, while the convex surface 132 is located on the opposite side away from the device body 10. When the airflow generated by the fan module 12 is split into the first partial airflow A1 and the second partial airflow A2 by the airflow adjustment structure 13, the second partial airflow A2 flows along the concave surface 131 and changes the direction of the flow according to the configuration of the concave surface 131, that is, the second partial airflow A2 changes from originally flowing in a direction away from the second airflow outlet F2 to flowing in a direction close to the second airflow outlet F2.

As shown in fig. 1 to 4, the device body 10 of the present example includes a flow guiding sidewall 103. The guiding sidewall 103 is connected between the top wall 101 and the bottom wall 102, and the guiding sidewall 103 corresponds to the first wind outlet F1. Further, the cover 11 of the present embodiment includes an inner edge surface 110. In the present embodiment, the outer convex surface 132 of the airflow adjusting structure 13, the inner edge surface 110 of the cover 11, and the guiding sidewall 103 of the device body 10 define a first section airflow channel C1 in the airflow channel C. In the present embodiment, the first section wind flow channel C1 is connected to the first wind flow outlet F1 located on the top wall 101 of the device body 10, and the first section wind flow channel C1 is mainly used for guiding the first portion of the wind flow A1, such that the first portion of the wind flow A1 flows out from the first wind flow outlet F1 along the first section wind flow channel C1.

As shown in fig. 1 to 4, the fan module 12 of the present embodiment includes an upper surface 121 opposite to the bottom wall 102 of the device body 10. In the present embodiment, the concave surface 131 of the airflow adjusting structure 13, the bottom wall 102 of the device body 10, and the upper surface 121 of the fan module 12 define a second section airflow channel C2 within the airflow channel C. In the present embodiment, the second section airflow channel C2 is connected to the second airflow outlet F2 below the bottom wall 102 of the device body 10, and the second section airflow channel C2 is mainly used for guiding the second portion of the airflow A2, such that the second portion of the airflow A2 flows out from the second airflow outlet F2 along the second section airflow channel C2.

It should be noted that, the airflow adjusting structure 13 of the present embodiment corresponds to the air outlet 120 of the fan module 12, such that the air outlet 120 is divided into a first portion of air outlet 1201 and a second portion of air outlet 1202. In the present embodiment, the caliber of the second part of air outlet 1202 is larger than that of the first part of air outlet 1201, that is, when the airflow generated by the fan module 12 is split into the first part of airflow A1 and the second part of airflow A2 by the airflow adjusting structure 13, the first part of airflow A1 is mainly discharged from the first part of air outlet 1201 with smaller caliber, so that the first part of airflow A1 is the cut-off air with smaller air volume, and the second part of airflow A2 is mainly discharged from the second part of air outlet 1202 with larger caliber, so that the second part of airflow A2 is the main air with larger air volume.

It should be noted that, the caliber of the second air outlet 1202 is larger than that of the first air outlet 1201, but the invention is not limited thereto, and in other embodiments, the caliber of the first air outlet 1201 may be adjusted to be larger than that of the second air outlet 1202 according to the actual requirements. In addition, the aperture of the air outlet 120 of the fan module 12 may be adjusted according to the actual situation, for example, in the case that the aperture of the air outlet 120 of the fan module 12 is increased, the air output of the first portion air outlet 1201 and the second portion air outlet 1202 separated by the airflow adjusting structure 13 may be relatively increased.

As shown in fig. 1 to 4, the wireless charging device 1 of the present embodiment further includes a plurality of deflector bodies 14. The guide plates 14 are disposed on the inner edge surface 110 of the cover 11 and located in the first section air flow channel C1, and a guide channel 140 is disposed between two adjacent guide plates 14 of the guide plates 14. In the present embodiment, when the first part of the airflow A1 flows out from the first airflow outlet F1 along the first section airflow channel C1, the first part of the airflow A1 passes through the diversion channel 140 formed by the diversion plates 14.

As shown in fig. 1 to 4, the wireless charging device 1 of the present embodiment further includes a plurality of heat dissipation fins 15. The heat dissipation fins 15 are disposed on the bottom wall 102 of the device body 10, and the plurality of heat dissipation fins 15 and the cover 11 are adjacent to each other. In the present embodiment, after the second part of the airflow A2 flows out from the second airflow outlet F2 along the second section airflow channel C2, the second part of the airflow A2 directly blows to the heat dissipation fins 15 to exchange heat with the heat dissipation fins 15, so that the heat dissipation fins 15 can more quickly guide the heat generated by the device body 10 to the outside.

As shown in fig. 1 to 4, the wireless charging device 1 of the present embodiment further includes a plurality of guide grooves 16. These channels 16 are located in the top wall 101 of the device body 10. When the device to be charged 100 is placed on the top wall 101 of the device body 10, a plurality of channels 160 are formed between the device to be charged 100 and the guide grooves 16. In the present embodiment, after the first part of the airflow A1 flows out from the first airflow outlet F1 along the first section airflow channel C1, the first part of the airflow A1 exchanges heat with the device to be charged 100 and the device body 10 through the channels 160, so that the heat energy generated between the device to be charged 100 and the device body 10 is accelerated and discharged to the outside.

As shown in fig. 3, the wireless charging device 1 of the present embodiment further includes a power input connection port 17. The power input connection port is disposed in the device body 10, and the power input connection port 17 extends from a side wall (a side wall opposite to the diversion side wall) of the device body 10, such that a portion of the power input connection port 17 is exposed outside the device body 10. In the present embodiment, the power input connection port 17 is, for example, a USB socket or a MINI USB socket, the power input connection port 17 is used for coupling a power cord with a USB plug or a MINI USB plug, and the wireless charging device 1 is coupled to an external power supply through the power cord, but the invention is not limited to the type and specification of the power input connection port 17.

As shown in fig. 1 to 4, the wireless charging device 1 of the present embodiment further includes a transmitting coil unit (not shown) and a circuit board (not shown) disposed within the device body 10. When the user places the device to be charged 100 on the top wall 101 of the device body 10, the device body 10 can charge the device to be charged 100, that is, the transmitting coil unit of the wireless charging device 1 transmits an electromagnetic field, and the induction coil built in the device to be charged 100 generates a current according to the change of magnetic flux after inducing the electromagnetic field to charge. Other detailed technical principles of the wireless charging device 1 for charging the charging device 100 are known technical means, and are not described in detail herein.

In summary, in the wireless charging device according to the embodiment of the invention, the wind flow adjusting structure is disposed at the air outlet of the fan module, when the wind flow generated by the fan module is blown out through the air outlet, the wind flow adjusting structure cuts the wind flow into at least two wind flows with different flowing directions, and blows the wind flow to the wind flow channels of different sections according to the set direction, so that the area of the wind flow passing through the device body is increased, the wind flow can effectively exchange heat on the path and leave the device body, and under the structural design, the heat dissipation efficiency of the device body can be greatly improved, and meanwhile, the device to be charged on the device body can also dissipate heat, so that the effect of actual charging is prevented from being affected by the temperature rise of the device to be charged.

However, the above description is only of the preferred embodiments of the present invention, and the scope of the present invention is not limited thereto, but is defined by the appended claims and their description, and all the simple equivalent changes and modifications are intended to fall within the scope of the present invention. Furthermore, not all of the objects, advantages, or features of the present disclosure are required to be achieved by any one embodiment or claim of the present disclosure. Furthermore, the abstract sections and headings are for use only in connection with searching patent documents and are not intended to limit the scope of the claims. Furthermore, references to "first," "second," etc. in this specification or in the claims are only intended to name or distinguish between different embodiments or ranges of the element, and are not intended to limit the upper or lower limit on the number of the element.

Claims (9)

1. A wireless charging device, comprising:

the device body comprises a top wall, a bottom wall and a first air flow outlet, wherein the top wall and the bottom wall are opposite to each other, and the first air flow outlet is arranged on the top wall;

the cover body is configured on the device body, an air flow channel and a second air flow outlet are defined between the cover body and the device body, the air flow channel is communicated with the first air flow outlet and the second air flow outlet, and the second air flow outlet is positioned below the bottom wall;

the fan module is arranged in the cover body and is provided with an air outlet facing the air flow channel; and

when the air flow generated by the fan module blows out from the air outlet, the air flow adjusting structure divides the air flow into a first part of air flow and a second part of air flow with different flow directions, so that the first part of air flow and the second part of air flow respectively flow out from the first air flow outlet and the second air flow outlet.

2. The wireless charging device of claim 1, wherein the airflow adjusting structure comprises a concave surface near the device body and a convex surface far from the device body, the device body further comprises a guiding sidewall connected between the top wall and the bottom wall, the guiding sidewall corresponds to the first airflow outlet, the cover body comprises an inner edge surface, the convex surface, the inner edge surface and the guiding sidewall define a first section airflow channel in the airflow channel, the first section airflow channel is communicated with the first airflow outlet, and the first part of airflow flows out of the first airflow outlet through the first section airflow channel.

3. The wireless charging device of claim 2, wherein the fan module comprises an upper surface opposite the bottom wall, the concave surface, the upper surface and the bottom wall defining a second section of airflow channel within the airflow channel, the second section of airflow channel being in communication with the second airflow outlet, the second portion of airflow flowing out of the second airflow outlet through the second section of channel.

4. The wireless charging device of claim 2, further comprising a plurality of deflector bodies disposed on the inner edge surface of the cover body and located in the first section wind flow channel, wherein a flow guiding channel is provided between two adjacent deflector bodies of the plurality of deflector bodies, and the first part of wind flows through the plurality of flow guiding channels during the process of flowing out from the first wind flow outlet through the first section wind flow channel.

5. The wireless charging device of claim 1, further comprising a plurality of heat dissipation fins disposed on the bottom wall of the device body, wherein the plurality of heat dissipation fins are adjacent to the cover, and the second portion of the airflow flows out from the second airflow outlet and passes through the plurality of heat dissipation fins.

6. The wireless charging device of claim 1, further comprising a plurality of guide slots, wherein the plurality of guide slots are disposed on the top wall of the device body, and when a device to be charged is disposed on the top wall of the device body, a plurality of channels are formed between the device to be charged and the plurality of guide slots, and the first part of wind flows out from the first wind outlet and passes through the channels.

7. The wireless charging device of claim 1, wherein the airflow adjusting structure corresponds to the air outlet to divide the air outlet into a first portion of air outlet and a second portion of air outlet, and the aperture of the second portion of air outlet is larger than that of the first portion of air outlet.

8. The wireless charging device of claim 1, further comprising a transmitting coil unit and a circuit board, the transmitting coil unit and the circuit board being disposed within the device body.

9. The wireless charging device of claim 1, further comprising a power input connection port disposed within the device body, and a portion of the power input connection port being exposed outside the device body.