WO2020001017A1 - Wireless charging apparatus - Google Patents

Abstract

Disclosed is a wireless charging apparatus, comprising a housing, and a wireless charging module, a temperature detection module, a heat dissipation module and a control module installed inside the housing, wherein the temperature detection module, the heat dissipation module and the wireless charging module are respectively connected to the control module; the control module controls, according to charging information of the wireless charging module, the temperature detection module to detect the temperature; the control module controls, according to detection information of the temperature detection module, the heat dissipation module to dissipate heat; and the heat dissipation module comprises a semiconductor refrigeration sheet and a heat dissipation fan. The present utility model provides an active-cooling wireless charging apparatus in order to overcome the severe overheating problem of existing mobile phones during wireless charging.

Description

Wireless charging device Technical field

The utility model relates to the technical field of electronic product charging, in particular to a wireless charging device.

Background technique

Existing wireless charging products generally dissipate heat naturally or by built-in fans or hardware. When the existing product charges the mobile terminal, the temperature of the mobile terminal and the temperature of the product will rise, resulting in the surface temperature of the mobile phone being too high, which will cause the current mobile phone to heat seriously during wireless charging and damage the mobile phone. In view of this, this application is hereby filed.

technical problem

The purpose of the present utility model is to overcome the shortcomings of the prior art, and to provide an active cooling type wireless charging device in order to overcome the serious heating problem of the existing wireless charging of a mobile phone.

Technical solutions

In order to achieve the above object, the present invention provides a wireless charging device including a housing and a wireless charging module, a temperature detection module, a heat dissipation module, and a control module installed in the housing; a temperature detection module, the heat dissipation module, and a wireless charging module The control module is respectively connected to the control module; the control module controls the temperature detection module to perform temperature detection according to the charging information of the wireless charging module; the control module controls the heat dissipation module to perform heat dissipation according to the detection information of the temperature detection module; fan.

Further, the wireless charging device further includes a DC power supply circuit module, and the DC power supply circuit module is respectively connected to a temperature detection module, a heat dissipation module, a wireless charging module, and a control module circuit; and is used to simultaneously charge the temperature detection module, the heat dissipation module, and the wireless charging Module, control module circuit power.

Further, the casing includes an upper casing, a lower casing, and a bearing plate; the lower casing is located on the lower side of the upper casing, and a wireless charging module, a temperature detection module, a heat dissipation module, and a control module are defined between the two. The upper case is provided with an opening exposing the semiconductor cooling sheet, and the size of the opening is adapted to the size of the upper end face of the semiconductor cooling sheet; the carrier plate is arranged on the upper side of the upper case, and the lower part of the carrier plate is The surface is in contact with the upper surface of the semiconductor cooling sheet.

Furthermore, the lower casing has a first limiting slot adapted to the size of the cooling fan, and the cooling fan is disposed in the first limiting slot.

Furthermore, the lower side of the upper casing has a second limiting slot adapted to the outline of the wireless charging module, and the wireless charging module is snapped into the second limiting slot.

Further, the heat-dissipating fan and the semiconductor cooling sheet are bonded by a thermally conductive silica gel.

Beneficial effect

The utility model adopts the above technical solution and has the following beneficial effects:

By adopting semiconductor refrigeration technology, when a wireless charging device is used to charge a terminal device, the terminal device can be kept at a low temperature for a long time to charge.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a schematic diagram of the overall structure of a wireless charging device according to an embodiment of the present invention.

FIG. 2 is a first exploded view of a wireless charging device according to an embodiment of the present invention.

FIG. 3 is a second exploded view of the wireless charging device according to the embodiment of the present invention.

FIG. 4 is a third exploded view of the wireless charging device according to the embodiment of the present invention.

FIG. 5 is a schematic diagram of an internal circuit according to an embodiment of the present invention.

Reference signs:

1. housing; 2. upper housing; 3. lower housing; 4. carrier board; 5. control module; 6. wireless charging module; 7. heat sink module; 8. semiconductor cooling sheet; 9. heat sink fan; 3A .First limit slot; 2C. Second limit slot; 3B opening;

Embodiments of the invention

In order to further explain the technical means and effects adopted by the present utility model to achieve the above-mentioned purpose, the specific implementation, structure, features, and effects of the present utility model are described in detail below with reference to the drawings and preferred embodiments. It should be understood that the specific embodiments described in the present invention are only used to explain the present invention and are not used to limit the present invention.

With reference to FIGS. 1 to 5, FIG. 1 is a schematic diagram of the overall structure of a wireless charging device according to an embodiment of the present invention, FIG. 2 is a first exploded view of the wireless charging device according to an embodiment of the present invention, and FIG. 3 is a wireless charging device according to an embodiment of the present invention. The second exploded view of the charging device, FIG. 4 is a third exploded view of the wireless charging device according to the embodiment of the present invention, and FIG. 5 is a schematic diagram of the internal circuit of the embodiment of the present invention.

A wireless charging device of the present application includes a housing 1 and a wireless charging module 6, a temperature detection module, a heat dissipation module 7, and a control module 5 installed in the housing 1; the temperature detection module, the heat dissipation module 7, The wireless charging module 6 is respectively connected to the control module 5; the control module 5 controls the temperature detection module to perform temperature detection according to the charging information of the wireless charging module; the control module 5 controls the temperature detection module according to the detection information of the temperature detection module The heat dissipation module 7 performs heat dissipation; the heat dissipation module 7 includes a semiconductor cooling sheet 8 and a heat dissipation fan 9.

Semiconductor cooling fins, also called thermoelectric cooling fins, are a type of heat pump. Its advantage is that there are no sliding parts, and it is used in some places with limited space, high reliability requirements, and no refrigerant pollution. Utilizing the Peltier effect of semiconductor materials, when direct current passes through a couple of two different semiconductor materials connected in series, the two ends of the couple can respectively absorb and release heat, which can achieve the purpose of cooling. It is a refrigeration technology that generates negative thermal resistance. It is characterized by no moving parts and high reliability.

The wireless charging device also includes a DC power circuit module, which is connected to the temperature detection module, the cooling module 7, the wireless charging module 6, and the control module 5 respectively; and is used to simultaneously provide the temperature detection module, the cooling module 7, and the wireless charging module. 6, control module 5 circuit power.

The casing 1 includes an upper casing 2, a lower casing 3, and a carrier plate 4. The lower casing 3 is located on the lower side of the upper casing 2, and a wireless charging module 6, a temperature detection module, and a heat sink are defined between the two. The receiving cavity of the module 7 and the control module 5; the upper case 2 is provided with an opening 3B exposing the semiconductor cooling sheet 8, and the size of the opening 3B is suitable for the size of the upper end surface of the semiconductor cooling sheet 8 The carrier plate 4 is disposed on the upper side of the upper casing 2, and the lower surface of the carrier plate 4 is in contact with the upper surface of the semiconductor cooling sheet 8.

The lower casing 3 has a first limiting slot 3A adapted to the size of the cooling fan 9, and the cooling fan 9 is disposed in the first limiting slot 3A.

The lower side of the upper casing 2 has a second limiting slot 2C adapted to the contour of the wireless charging module 6, and the wireless charging module 6 is snapped into the second limiting slot 2C.

The heat dissipation fan and the semiconductor cooling sheet are bonded by a thermally conductive silica gel.

Specifically, the steps described in this embodiment may be performed as follows:

After the wireless charging device is connected to the power source, the control module 5 starts to work.

The DC power module supplies power to the control module 5, the wireless charging module 6, the temperature detection module, and the heat dissipation module 7 at the same time. The mobile device is placed in this wireless charging device, the wireless charging circuit starts to work, and after the control module 5 detects that the wireless charging module 6 is working, the temperature sensor in the temperature detection module starts to detect the product surface temperature. When the surface temperature is higher than the set temperature 35 At degrees Celsius, the heat dissipation module 7 controls the semiconductor cooling chip to start working and the heat dissipation fan to start working.

When the terminal device removes the wireless charging device, the wireless charging circuit stops working. At the same time, when the control module 5 detects that the wireless charging has stopped working, and the surface temperature is lower than the set temperature of 35 degrees Celsius, the cooling module 7 controls the semiconductor cooling sheet to stop working. , The cooling fan stops working.

The present invention is not limited to the above-mentioned best embodiments. Those skilled in the art can derive other various forms of products under the inspiration of the present invention. However, no matter what changes are made in the shape or structure, any product with The same or similar technical solutions in this application all fall within the protection scope of this utility model.

Claims (6)

A wireless charging device includes a casing (1) and a wireless charging module (6), a temperature detection module, a heat dissipation module (7), and a control module (5) installed in the casing (1); the temperature detection module The cooling module (7) and the wireless charging module (6) are respectively connected to the control module (5); the control module (5) controls the temperature detection module to perform temperature based on the charging information of the wireless charging module Detection; the control module (5) controls the heat dissipation module (7) to dissipate heat according to the detection information of the temperature detection module; characterized in that the heat dissipation module (7) includes a semiconductor cooling sheet (8) and a heat dissipation fan (9) ). The cooling wireless charging device according to claim 1, wherein the wireless charging device further comprises a DC power circuit module, the DC power circuit module is respectively connected to the temperature detection module and the heat dissipation module ( 7) The wireless charging module (6) and the control module (5) are connected in a circuit; and are used to simultaneously supply the temperature detection module, the heat dissipation module (7), the wireless charging module (6), The control module (5) is powered by a circuit. The cooling type wireless charging device according to claim 1, wherein the casing (1) comprises an upper casing (2), a lower casing (3), and a bearing plate (4); The body (3) is located on the lower side of the upper casing (2), and an accommodating cavity for accommodating the wireless charging module (6), the temperature detection module, the heat dissipation module (7) and the control module (5) is defined between the two; The upper casing (2) is provided with an opening (3B) exposing the semiconductor cooling sheet (8), and the size of the opening (3B) is adapted to the size of the upper end surface of the semiconductor cooling sheet (8) The carrying plate (4) is arranged on the upper side of the upper casing (2), and the lower surface of the carrying plate 4 is in contact with the upper surface of the semiconductor cooling sheet (8). The cooling type wireless charging device according to claim 3, wherein the lower case 3 has a first limiting slot (3A) adapted to the size of the cooling fan (9), and the cooling fan (9) arranged in the first limiting slot (3A). The cooling type wireless charging device according to claim 3, wherein the lower side of the upper casing 2 has a second limiting slot (2C) adapted to the contour of the wireless charging module (6). The wireless charging module (6) is snapped into the second limiting slot (2C). The cooling type wireless charging device according to claim 1, wherein the cooling fan and the semiconductor cooling sheet are bonded by a thermally conductive silica gel.