Cordless hair dryer

Abstract

A cordless hair dryer includes a main body and a power supply unit. The main body includes a housing, a drive unit, a fan impeller, a heat source, a temperature and fan speed control mechanism, an overheat protection device, a switch, and an air inlet filter. The bottom of the housing has a handle. The power supply unit includes a housing, a power control unit, and a supercapacitor. The housing is detachably mounted on the handle. The power control unit is housed within the housing and electrically connected to the temperature and fan speed control mechanism. The supercapacitor is housed within the housing and electrically connected to the power control unit. Therefore, this cordless hair dryer uses a supercapacitor as its power source. Users only need to purchase two power supply units to alternate and charge, allowing for continuous operation of the hair dryer at a lower cost.

Claims

1. A cordless hair dryer for styling hair, comprising: A main body includes a housing, a drive unit, a fan impeller, a heat source, a temperature and wind speed control mechanism, an overheat protection device, a switch, and an air inlet filter. The housing has an air inlet and an air outlet and a handle at its bottom. The drive unit is disposed in the housing, the fan impeller is disposed on an output shaft of the drive unit, the heat source is disposed in the housing, the temperature and wind speed control mechanism is disposed in the housing and electrically connected to the drive unit and the heat source, the overheat protection device is disposed in the housing and electrically connected to the temperature and wind speed control mechanism, the switch is disposed on the surface of the housing and electrically connected to the temperature and wind speed control mechanism, and the air inlet filter is disposed in the air inlet. A power supply device includes a housing, a power control unit, and a plurality of supercapacitors. The housing is detachably disposed on the handle, the power control unit is disposed in the housing and electrically connected to the temperature and wind speed control mechanism, and the supercapacitors are disposed in the housing and electrically connected to the power control unit.

2. The cordless hair dryer as described in claim 1, wherein, The power control unit is located on the outside of the supercapacitors and near the side of the housing.

3. The cordless hair dryer as described in claim 1, wherein, These supercapacitors form at least one power supply module, which is arranged in at least one layer along the length of the housing.

4. The cordless hair dryer as described in claim 1, wherein, The handle has a connecting portion, the housing has a connecting portion, and the connecting portion of the housing is detachably connected to the connecting portion of the handle.

5. The cordless hair dryer as described in claim 1, wherein, A groove is formed on the inner sidewall of the handle. The housing is disposed inside the handle. A button hole and a latch hole are formed on the sidewall of the housing. The power supply device further includes a plate, a button, a latch, and a first elastic element. The plate is disposed inside the housing. The button is disposed on the first side of the plate, located in the button hole, and protrudes from the surface of the housing. The latch is disposed on the first side of the plate, located in the latch hole, protrudes from the surface of the housing, and engages in the groove. The first end of the first elastic element abuts against the interior of the housing, and the second end of the first elastic element abuts against the second side of the plate. When the button is pressed, the button drives the plate to move into the interior of the housing. At the same time, the latch disengages from the groove, and the plate compresses the first elastic element, causing the housing to separate from the handle. After the housing separates from the handle, the first elastic element drives the plate to move towards the housing by its elastic force until the button and the latch protrude from the surface of the housing.

6. The cordless hair dryer as described in claim 5, wherein, The power supply device includes a partition, a top cover, and a second elastic element. The partition is disposed on the top of the housing and has a receiving groove. The top cover is disposed on the top of the housing, above the partition, and has a through hole. The second elastic element is disposed in the receiving groove and passes through the through hole. The handle compresses the second elastic element. When the latch disengages from the groove, the second elastic element drives the partition to move towards the bottom of the handle by its elastic force. The partition drives the housing to move towards the bottom of the handle.

7. The cordless hair dryer as described in claim 6, wherein, The second elastic element includes a column and a spring. The column is disposed in the receiving groove, passes through the through hole, and has a shaft hole. The top of the column abuts against the handle. The spring is disposed in the shaft hole. The column compresses the spring. When the latch disengages from the groove, the spring drives the partition to move towards the bottom of the handle by its elastic force.

8. The cordless hair dryer as described in claim 7, wherein, A groove is formed on the side wall of the receiving groove, the length direction of which is parallel to the axis of the receiving groove. A protrusion is provided on one side of the column and is disposed in the groove. When the latch disengages from the groove, the protrusion moves upward along the groove until it contacts the top cover.

9. The cordless hair dryer for hair styling as described in claim 5, wherein, One of the inner sidewalls of the handle and the outer sidewall of the housing has a slide rail, the length direction of which is parallel to the length direction of the handle and the housing. The other of the inner sidewalls of the handle and the outer sidewall of the housing has a groove, the length direction of which is parallel to the length direction of the handle and the housing. The slide rail is disposed in the groove.

10. The cordless hair dryer as described in claim 1, wherein, The number of these supercapacitors ranges from four to twelve.

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