Portable small fan

Abstract

The invention relates to a portable small fan. The portable small fan comprises an outer shell, a groove, a front protection cover, a back protection cover, fan blades and a base. The upper left portion of the outer shell is provided with the groove, the front protection cover is arranged at the right lower end of the groove, and a motor is arranged at the rear end of the fan blades which are arranged at the rear end of the front protection cover. The lower portion of the outer shell is provided with an electricity collection area, the left portion of the electricity collection area is provided with a charging indicator, an electric lamp is arranged at the right end of an electric lamp switch which is arranged at the right end of the charging indicator, and the charging indicator is serially connected with an inner storage battery and further serially connected with the electric lamp switch and the electric lamp. The right end of the electric lamp is provided with a charging interface, and the charging interface is serially connected with an inner intelligent circuit board and the storage battery through an electric wire and is in parallel connection with a USB (universal serial bus) interface at the right end. The right upper portion of the outer shell is provided with a speed adjusting knob which is in series connection with the motor, and a power wire is arranged at the rear end of the motor. In general, the portable small fan has advantages of portability, functional versatility, low power consumption and wide utilization area.

Description

technical field [0001] The invention belongs to the technical field of household appliances, in particular to a small fan, in particular to a portable small fan. Background technique [0002] With the continuous development of society, things that are easy to carry are more and more popular among people. In order to adapt to the inconvenience brought by hot weather, people increasingly like to carry a cooling tool with them in offices, buses and outdoors. Mainly small fans, the existing small fans are roughly divided into two types: small fans with USB sockets and small fans with plugs. Small fans with plugs are too dangerous to be directly connected to 220V voltage, and now they are rare. Use, and the small fan with USB socket has a high safety factor, and it is convenient to use in the office and where there are USB connectors around, but the existing small fan with USB interface has too strong limitations, it can only be used when there is a computer or USB It cannot be ...

AI Technical Summary

Problems solved by technology

[0002] With the continuous development of society, things that are easy to carry are more and more popular among people. In order to adapt to the inconvenience brought by hot weather, people increasingly like to carry a cooling tool with them in offices, buses and outdoors. Mainly small fans, the existing small fans are roughly divided into two types: small fans with USB sockets and small fans with plugs. Small fans with plugs are too dangerous to be directly connected to 220V voltage, and now they are rare. Use, and the small fan with USB socket has a high safety factor, and it is convenient to use in the office and where there are USB connectors around, but the existing small fan with USB interface has too strong limitations, it can only be used when there is a computer or USB It can only be used under the condition of the environment, and cannot be used outdoors or on the bus; therefore, the development of a small fan with a wide range of applications and easy portability meets the needs of most office workers.

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