Safety type electric fan

Abstract

The invention discloses a safety type electric fan which comprises an air suction assembly and an air outlet mask. The air outlet mask is provided with an air inlet hole, air guiding channels, air outlet narrow holes and an installing part. The air inlet hole is arranged on the back of the air outlet mask, the air outlet narrow holes are arranged on the front of the air outlet mask, and the installing part is arranged at the position of the center of the back of the air outlet mask. The air suction assembly comprises a casing, a suction fan arranged in the casing and an air duct arranged in the casing. One end of the casing is provided with a mesh plate serving as an air duct air inlet, the other end of the casing is provided with an air duct air outlet, one of the casing provided with the air duct air outlet is fixed in the installing part, and the air duct air outlet is communicated with the air inlet hole of the air outlet mask. The safety type electric fan is small in noise and large in air outlet quantity.

Description

technical field [0001] The invention belongs to the technical field of electric fan structure design, and in particular relates to a safe electric fan. Background technique [0002] The current commercially available bladeless safety fan includes a base and an annular air outlet mask arranged on the base, and the base is provided with a suction assembly mainly consisting of a turbo fan; the biggest advantage of this fan is that it eliminates the traditional electric The fan blades used by the fan are extremely safe for both adults and children. However, this kind of fan also has the following disadvantages: in order to avoid bulkiness and bloat, the base with a smaller diameter is used, so the size of the turbo fan is limited. Hundreds to thousands of revolutions per second, resulting in a lot of noise, which is difficult to eradicate; in addition, because the diameter of the turbo fan is too small, although its speed is high, the air volume is still not comparable to t...

AI Technical Summary

Problems solved by technology

However, this kind of fan also has the following disadvantages: in order to avoid bulkiness, a smaller diameter base is used, so the size of the turbo fan is limited. In order to ensure sufficient air output, the speed of the turbo fan is higher, generally reaching every Hundreds to thousands of revolutions per second, resulting in a lot of noise, which is difficult to eradicate; in addition, because the diameter of the turbo fan is too small, although its speed is high, the air output is still not comparable to that of traditional fans, and the blowing effect is not good.

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