Whirlwind type electric dust collector

Abstract

A whirlwind type electric dust collector which has a low cost and an improved whirlwind effect is provided. The electric dust collector comprises a dust collector main body (2) with an electric blower (5) and a whirlwind type dust collecting part (3) equipped on the dust collector main body (2) in a freely detachable way. The whirlwind type dust collecting part (3) comprises a whirlwind cylinder (13) and an importing part (14) for importing air flows along the inner wall (13A) of the whirlwind cylinder (13). An inserting cylinder part (17) of a drawing flexible tube part (4) is formed and can be inserted into the importing part (14). Meanwhile, a bent part (17B) is equipped. The bent part is bent towards the peripheral side of the whirlwind type dust collecting part (3) along one end part (17A) of the inserting cylinder part (17) and the central side of the whirlwind type dust collecting part (3). Therefore, a simple and inexpensive structure is formed. Furthermore, the whirlwind return flow can be through from the peripheral side of the whirlwind cylinder (13) and the angular speed of the whirlwind return flow can be improved. Consequently, the centrifugal separation is enhanced.

Description

technical field [0001] The invention relates to a cyclone electric vacuum cleaner. Background technique [0002] At present, as such a cyclone type electric vacuum cleaner, there is known a device having a vacuum cleaner main body equipped with an electric blower inside and a dust collection box 101 detachably mounted on the vacuum cleaner main body (similar to the dust collecting box 101 of the invention of the present application). part equivalent), so that the airflow is provided with an air inlet 103 (equivalent to the introduction part of the invention of the present application) so that the airflow flows in in the substantially tangential direction of the side wall 102 of the dust box 101. The wall 104 of the dust box extends concentrically in the flow direction of the air flowing into the dust box from the suction port, and blocks a part of the suction port (for example, refer to Patent Document 1). In such a cyclone type electric vacuum cleaner, the aperture of the ...

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Problems solved by technology

[0004] However, in such a cyclone type electric vacuum cleaner, since the above-mentioned wall must be formed on the diameter portion of the above-mentioned suction port, the structure of the molding die is complicated, and there is a problem that the cost increases.

In addition, in order to smoothly guide the airflow through the air inlet to the inner wall of the dust box, the flow area of ​​the air inlet must be gradually reduced toward the diameter portion. Thick-walled parts, so the difficulty of forming is further increased, which further leads to an increase in cost

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