TWI788267B - Wireless charging device - Google Patents

Abstract

A wireless charging device includes a chassis, at least one wireless charging module, and a blower. The chassis includes a shell and a supporting plate. The supporting plate is set in the shell. The supporting plate separates the shell into a first containing space and a second containing space. The chassis has at least an inlet hole, at least an outlet hole, and an opening. The inlet hole and the opening are connected to the second containing space. The outlet hole connects to the first containing space. The supporting plate has at least one connecting hole. The connecting hole connects the first containing space and the second containing space. The wireless charging module is in the first containing space. The blower is in the first containing space to let the airflow from the inlet hole to the outlet hole through the second containing space, the connecting hole, and the first containing space.

Description

wireless charging device

The present invention relates to a charging device, in particular to a wireless charging device.

Faced with the improvement of computing performance of smartphones and the increase of battery capacity, various wireless charging stand manufacturers are trying to increase the charging efficiency of wireless charging devices.

However, higher charging efficiency comes with heat from energy conversion. The heat accumulated in the charging stand and the mobile phone will cause the mobile phone to enter the protection mode or be damaged. Therefore, how to improve the heat dissipation efficiency of the charging stand itself and the heat dissipation efficiency of the mobile phone is a problem that wireless charging stand manufacturers need to face.

The present invention provides a wireless charging device to improve the heat dissipation efficiency of the charging stand itself and the heat dissipation efficiency of the mobile phone.

A wireless charging device disclosed in an embodiment of the present invention is used for charging a mobile device. The wireless charging device includes a casing, at least one wireless charging module and an airflow generator. The casing includes a shell and a bearing plate. The bearing plate is arranged on the casing to separate a first accommodating space and a second accommodating space in the casing. The casing has at least one air inlet, at least one air outlet, and a pick-and-place opening. At least one air inlet communicates with the access opening to the second accommodating space. At least one air outlet communicates with the first accommodating space. The bearing plate has at least one communication port. At least one communication port communicates with the first accommodating space and the second accommodating space. The carrying board is used to carry the mobile device. The wireless charging module is located in the first accommodating space and is used for charging the mobile device. The airflow generator is located in the first accommodating space, and is used to guide airflow to flow in from at least one air inlet, and flow out from at least one air outlet through the second accommodating space, at least one communication port, and the first accommodating space.

According to the wireless charging device of the above-mentioned embodiment, because the bearing plate has a communication port connecting the first accommodating space and the second accommodating space, when the airflow generator located in the first accommodating space operates, the airflow generated by the airflow generator In addition to flowing through the second accommodating space to dissipate heat from the mobile device in the second accommodating space, the airflow also flows through the first accommodating space to cool the circuit board and the wireless charging module in the first accommodating space Heat dissipation. In this way, the heat dissipation efficiency of the wireless charging device itself and the heat dissipation efficiency of the mobile device can be improved.

The above description of the content of the present invention and the following description of the implementation are used to demonstrate and explain the principle of the present invention, and provide further explanation of the patent application scope of the present invention.

Please refer to Figure 1 to Figure 2. FIG. 1 is a schematic perspective view of a wireless charging device according to a first embodiment of the present invention. FIG. 2 is an exploded schematic diagram of FIG. 1 .

The wireless charging device 100 of this embodiment is used to charge a mobile device 10 . The wireless charging device 100 includes a housing 200 , a circuit board 300 , two wireless charging modules 400 , two non-slip pads 500 and an airflow generator 600 .

The casing 200 includes a shell 210 , a supporting board 220 and a cover 225 . The housing 210 includes a first shell part 211 and a second shell part 212 . The first shell portion 211 includes a bottom plate 2111 and a plurality of first side plates 2112 . The first side panels 2112 are respectively connected to different sides of the bottom panel 2111 . The second shell portion 212 includes a top plate 2121 and a plurality of second side plates 2122 . The second side panels 2122 are respectively connected to different sides of the top panel 2121 . The second side plates 2122 of the second shell portion 212 are respectively connected to one side of the first side plates 2112 away from the bottom plate 2111 . The carrying board 220 is disposed on the housing 210 to divide the housing 210 into a first accommodating space S1 and a second accommodating space S2 . That is to say, the first side panels 2112 , the bottom panel 2111 and the bearing panel 220 jointly surround the first accommodating space S1 , and the second side panels 2122 , the top panel 2121 and the loading panel 220 jointly enclose the second accommodating space S2 .

In this embodiment, the casing 200 has a plurality of air inlets 230 , a plurality of air outlets 240 and an opening 250 . The air inlets 230 are respectively located on the second side plate 2122 of the second shell portion 212 and communicate with the second accommodating space S2. The air outlets 240 are located on one of the first side panels 2111 and communicate with the first accommodating space S1. An access opening 250 is formed between the top plate 2121 of the second shell portion 212 and the first side plate 2112 of the first shell portion 211 , and the access opening 250 communicates with the second accommodating space S2 . The cover 225 is movably disposed on the top plate 2121 of the second housing portion 212 and is used to close the access opening 250 of the housing 210 or to open the access opening 250 . When the access port 250 is open, it is used for the user to access the mobile device 10 .

In this embodiment, there are multiple air inlets 230 and air outlets 240 , but it is not limited thereto. In other embodiments, the number of the air inlet and the air outlet can also be changed to a single one.

In this embodiment, the surface of the carrying board 220 has two carrying areas 221 located in the second accommodating space S2. The second carrying area 221 is used to correspond to the mobile device 10 . The two wireless charging modules 400 are located in the first accommodating space S1 and are used for charging the mobile device 10 .

In this embodiment, the circuit board 300 is located in the first accommodating space S1 and installed on the bottom plate 2111 of the first housing portion 211 . For example, the circuit board 300 is provided with electronic components such as signal indicators and TYPE-C slots.

Each of the two wireless charging modules 400 includes a mounting bracket 410 , a charging coil 420 and a wireless communication antenna board 430 . The installation bracket 410 is installed on the circuit board 300 . The charging coil 420 is disposed on the mounting bracket 410 . The wireless communication antenna board 430 is mounted on the installation bracket 410 , and the charging coil 420 is interposed between the installation bracket 410 and the wireless communication antenna board 430 .

The two anti-slip pads 500 are located in the second accommodating space S2 and are respectively disposed on the two carrying areas 221 of the carrying plate 220 . One of the anti-slip pads 500 has a plurality of communication openings 510 . These communication ports 510 communicate with the first accommodating space S1 and the second accommodating space S2. The anti-skid pad 500 is used to support the mobile device 10 so that a gap X is formed between the mobile device 10 and the supporting board 220 . The gap X communicates with the intake ports 230 and the communication ports 510 .

In this embodiment, the number of communication ports 510 is multiple, but not limited thereto. In other embodiments, the number of communicating ports can also be changed to a single one. In addition, in this embodiment, only one of the non-slip pads 500 has the communication opening 510 , that is, it is located in one of the bearing areas 221 , but it is not limited thereto. In other embodiments, the communication port may also be located in the second carrying area.

In this embodiment, the communication port 510 is located on the anti-skid pad 500 , but it is not limited thereto. In other embodiments, if there is no anti-slip pad, the communication port can also be located on the bearing plate.

The airflow generator 600 is, for example, a centrifugal fan located in the first accommodating space S1 and disposed on a side of the wireless charging module 400 close to the bottom plate 2111 of the first housing portion 211 . The airflow generator 600 has an air inlet 610 and an air outlet 620 . The air inlet 610 faces the supporting board 220 . The air outlet 620 faces the circuit board 300 and at least one air outlet 240 . The airflow generator 600 is used to generate a negative pressure in the first accommodating space S1, and guide the external airflow from the air inlet 230 into the second accommodating space S2 to dissipate heat from the mobile device 10, and then communicate with the second accommodating space through the communication port 222. An accommodating space S1 flows out from the air outlet 240 .

Please refer to FIG. 3 . FIG. 3 is a schematic cross-sectional view of FIG. 1 . When the airflow generator 600 operates, the airflow generator 600 will guide the external airflow along the direction A from the air inlet 230 to flow into the second accommodating space S2. Next, the airflow flowing into the second accommodating space S2 not only flows along the direction A above the mobile device 10 , but also flows along the direction B through the gap X below the mobile device 10 . Then, the airflow located in the gap X below the mobile device 10 will flow into the first accommodating space S1 along the direction C through the communication port 510 . Then, it flows into the air inlet 610 of the airflow generator 600 along the direction D and flows out from the air outlet 620 of the airflow generator 600 . Then, it flows along the direction E to dissipate heat from the circuit board 300 . Then, it flows out from the air outlet 240 along the direction F. In addition, the airflow in the first accommodating space S1 will also flow along the direction G from the first accommodating space S1 through the communication port 510 close to the air outlet 240 to the gap X below the mobile device 10 in the second accommodating space S2, Then it flows along the direction H to the gap X under another mobile device 10 , and flows into the first accommodating space S1 again through the communication port 510 away from the air outlet 240 to enhance the cooling effect on the mobile device 10 .

According to the wireless charging device of the above embodiment, since the anti-slip pad is disposed on the carrying area of the carrying plate, a gap can be formed between the mobile device and the carrying plate. Moreover, the anti-slip pad has a communication port connecting the first accommodating space and the second accommodating space, so that when the airflow generator located in the first accommodating space operates, the airflow generated by the airflow generator flows through the second accommodating space. In addition to cooling the mobile device in the second storage space, it also flows through the first storage space to dissipate heat from the circuit board and the wireless charging module in the first storage space. In this way, the heat dissipation efficiency of the wireless charging device itself and the heat dissipation efficiency of the mobile device can be improved.

In an embodiment of the present invention, the wireless charging device of the present invention can be applied to vehicle-mounted devices, such as self-driving cars, electric cars, or semi-autonomous cars.

Although the present invention is disclosed above with the foregoing embodiments, it is not intended to limit the present invention. Any person familiar with similar skills may make some changes and modifications without departing from the spirit and scope of the present invention. Therefore, this The scope of patent protection for inventions shall be defined in the scope of patent application attached to this specification.

10:Mobile device 100: Wireless charging device 200: Shell 210: Shell 211: The first shell 2111: Bottom plate 2112: First side panel 212: second shell 2121: top plate 2122: Second side panel 220: carrying plate 221: bearing area 225: cover 230: air inlet 240: air outlet 250: Take and put port 300: circuit board 400:Wireless charging module 410: Mounting bracket 420: charging coil 430: Wireless communication antenna board 500: Non-slip pad 510: Connecting port 600: air flow generator 610: air inlet 620: air outlet S1: The first storage space S2: Second storage space X: Gap A~H: Direction

FIG. 1 is a schematic perspective view of a wireless charging device according to a first embodiment of the present invention. FIG. 2 is an exploded schematic diagram of FIG. 1 . FIG. 3 is a schematic cross-sectional view of FIG. 1 .

10:Mobile device

100: Wireless charging device

200: Shell

211: The first shell

2111: Bottom plate

2112: First side panel

2121: top plate

2122: Second side panel

220: carrying plate

230: air inlet

240: air outlet

300: circuit board

400:Wireless charging module

500: Non-slip pad

510: Connecting port

600: air flow generator

610: air inlet

620: air outlet

S1: The first storage space

S2: Second storage space

X: Gap

A~H: Direction

Claims (10)

A wireless charging device is used to charge a mobile device, and the wireless charging device includes: A shell, including a shell and a bearing plate, the load plate is arranged on the shell to separate a first accommodation space and a second accommodation space in the shell, the shell has at least one air inlet , at least one air outlet, and an access opening, the at least one air inlet communicates with the access opening to the second accommodating space, the at least one air outlet communicates with the first accommodating space, and the bearing plate has at least one communication The at least one communication port communicates with the first accommodating space and the second accommodating space, and the carrying plate is used to carry the mobile device; at least one wireless charging module is located in the first accommodating space and is used for The mobile device is charged; and an airflow generator is located in the first accommodating space, and is used to guide the airflow to flow in from the at least one air inlet, and pass through the second accommodating space, the at least one communication port, and the first accommodating space. An accommodating space flows out from the at least one air outlet. The wireless charging device as described in claim 1, wherein the casing includes a first shell portion and a second shell portion, the first shell portion includes a bottom plate and a plurality of first side plates, and the first side plates are respectively connected to On different sides of the bottom plate, the second shell portion includes a top plate and a plurality of second side plates, the second side plates are respectively connected to different sides of the top plate, and the second side plates of the second shell portion are respectively connected to On one side of the first side plates of the first shell part away from the bottom plate, and the access opening is formed between the top plate and the first side plate, the at least one air inlet is multiple in number and located on the The number of the at least one air outlet is multiple, and it is located on one of the first side plates. The wireless charging device as described in claim 2, wherein the housing further includes a cover, which can be movably arranged on the top plate of the second housing part, and is used to cover the access opening of the housing or allow the access Let the mouth open. The wireless charging device as described in claim 2 further includes a circuit board, the at least one wireless charging module includes a mounting bracket and a charging coil, the mounting bracket is installed on the circuit board, and the charging coil is arranged on the mounting bracket stand. The wireless charging device as described in claim 4, wherein the at least one wireless charging module further includes a wireless communication antenna board, the wireless communication antenna board is installed on the mounting bracket, and the charging coil is interposed between the mounting bracket and the wireless charging device. Between the communication antenna boards. The wireless charging device as claimed in claim 4, wherein the number of the at least one wireless charging module is two, and the airflow generator is located on one side of the bottom plate of one of the wireless charging modules close to the first casing. The wireless charging device according to claim 4, wherein the airflow generator is a centrifugal fan, the airflow generator has an air inlet and an air outlet, the air inlet faces the carrier board, and the air outlet faces the circuit board. The wireless charging device according to claim 2, wherein the surface of the bearing plate has at least one bearing area located in the second accommodating space, the at least one bearing area is used to correspond to the mobile device, and the at least one communication port is located at In the at least one loading area of the loading board. The wireless charging device according to claim 8 further includes an anti-slip pad, which is located in the second accommodating space and disposed in the at least one carrying area of the carrying plate, and is used to support the mobile device. The wireless charging device according to claim 9, wherein a gap is formed between the mobile device and the supporting board, and the gap communicates with the at least one air inlet and the at least one communication port.

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