USB (Universal Serial Bus) fan capable of automatically and vertically blowing
A fan and automatic technology, applied in the direction of machines/engines, liquid fuel engines, pumping devices for elastic fluids, etc., can solve the problems of not having the function of sweeping up and down, and achieve a wide range of use, simple structure, well-designed effects
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[0017] refer to figure 1 and figure 2 , a kind of USB fan that can automatically sweep wind up and down according to the present invention includes a base and two support arms 3 arranged on the base, and a fan head 4 is connected between the two support arms 3; the fan head 4 is connected with the two support arms The arms 3 are rotatably connected. In order to achieve the purpose of automatically sweeping the fan head 4 up and down, at least one support arm 3 in this embodiment is provided with a support arm motor for driving the fan head 4 to turn up and down. A controller is arranged inside the base, and a USB power cord is connected to the outside of the base, and the controller is connected with the motor of the support arm and the USB power cord.
[0018] The base includes a fixed base 1 and a movable base 2, and the movable base 2 is connected to the fixed base 1 in a 360-degree rotatable manner to achieve the purpose of adjusting the sitting angle of the fan.
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