Electric blanket

Abstract

An electric blanket includes: a gallium nitride power supply, a universal serial bus power line, an adapter, a controller, and a far-infrared heating element. The direct current converted by the gallium nitride power supply is transmitted to the far-infrared heating element via the universal serial bus power line, the adapter, and the controller, and flows through the positive conductive sheet, a plurality of graphene sheets, and the negative conductive sheet of the far-infrared heating element, thereby causing the graphene sheets to generate far-infrared radiation and generate heat.

Claims

1. An electric blanket comprising: a gallium nitride (GaN) power supply for connecting to an external power source and configured to convert AC power input from the connected external power source, having a voltage of 100 to 240 volts, a frequency of 50 to 60 Hz, and a maximum of 1.5 amps, into DC power of 5 to 20 volts, a voltage of 2.5 to 3 amps, and a maximum of 60 watts; a universal serial bus power cord detachably inserted into the GaN power supply for electrical connection to the GaN power supply; and an adapter comprising an adapter housing, a universal serial bus port, a conversion unit, and a DC power male plug, wherein the universal serial bus port is disposed at one end of the adapter housing and is detachably inserted into the universal serial bus power cord for electrical connection to the universal serial bus power cord, the conversion unit is disposed inside the adapter housing, and the DC power male plug is disposed at the other end of the adapter housing and is electrically connected to the universal serial bus port via the conversion unit; The controller includes a controller housing, a DC power female plug, a control unit, and a DC four-pin plug. The DC power female plug is located at one end of the controller housing and is detachably connected to the DC power male plug. The control unit is located inside the controller housing, and the DC four-pin plug is located at the other end of the controller housing and is electrically connected to the DC power female plug via the control unit. The controller also includes a far-infrared heating element, comprising a DC four-pin socket at one end and a heating element body electrically connected to the DC four-pin socket. The DC four-pin socket is detachably connected to the DC four-pin plug. The heating element body includes a lower insulating layer, an upper insulating layer disposed above the lower insulating layer, and a heating layer disposed between the lower and upper insulating layers. The heating layer includes a plurality of parallel-arranged graphene sheets, a positive conductive sheet connected to one end of each graphene sheet, and a negative conductive sheet connected to the other end of each graphene sheet. The DC power converted by the gallium nitride power supply is transmitted to the far-infrared heating element via the universal serial bus power line, the adapter, and the controller, and flows through the positive conductive sheet, the plurality of graphene sheets and the negative conductive sheet, thereby causing the graphene sheets to generate far-infrared radiation and generate heat.

2. The electric blanket as claimed in claim 1, wherein the universal serial bus power cable is connected to the gallium nitride power supply and the adapter via a USB Type-C plug, the universal serial bus port of the adapter being a USB Type-C port.

3. The electric blanket as described in claim 1, wherein the DC power male plug is a DC5525 male plug and the DC power female plug is a DC5525 female plug.

4. The electric blanket as described in claim 1, wherein the DC four-pin plug is a DC 4PIN plug and the DC four-pin socket is a DC four-hole socket.

5. The electric blanket as claimed in claim 1, wherein the positive conductive sheet and the negative conductive sheet are copper sheets.

6. The electric blanket as described in claim 1 further includes a temperature sensor disposed on the far-infrared heating element and connected to the controller via the DC four-pin socket and the DC four-pin plug. The temperature sensor detects the temperature of the graphene sheet to obtain a temperature measurement signal and outputs the temperature measurement signal to the controller. The controller automatically controls the temperature of the far-infrared heating element based on the temperature measurement signal.

7. The electric blanket as claimed in claim 6, wherein the controller is configured to operate the far-infrared heating element in a temperature range of 22°C to 46°C.

8. The electric blanket as described in claim 6, wherein the controller is configured to operate such that the far-infrared heating element is maintained at a constant temperature after a predetermined heating time.

9. The electric blanket as claimed in claim 1, wherein the thickness of the far-infrared heating element is 0.17 mm or more.

10. The electric blanket as claimed in claim 1 further includes a graphene outer fabric cover that covers the periphery of the far-infrared heating element and contains graphene.

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