Blade-free double-head fan

Abstract

The invention discloses a blade-free double-head fan which comprises an air sucking assembly, two air outlet covers and an electric cooling plate. Each air outlet cover comprises a face plate and a back plate, an air outlet slot is formed in the face plate, an installing hole is formed in the center position of the back plate, and an air guiding channel is arranged between the face plate and the back plate. The air sucking assembly comprises a casing, a suction fan arranged in the casing and a first air channel and a second air channel which are arranged in the casing. A mesh plate serving as an air inlet hole is arranged in the middle of the casing, a first air channel outlet is arranged in the left end of the casing, and a second air channel outlet is arranged in the right end of the casing. Two ends of the casing are arranged in the installing hole of a corresponding back plate, the first air channel outlet is communicated with the air guiding channel of the air outlet cover on the left side, and the second air channel outlet is communicated with the air guiding channel of the air outlet cover on the right side. The electric cooling plate is arranged in the casing and arranged between the two back plates and is adjacent to the mesh plate. The blade-free double-head fan is small in noise, large in air volume and capable of blowing cold air.

Description

technical field [0001] The invention belongs to the technical field of electric fan structure design, and in particular relates to a bladeless 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 that ...

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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