Bladeless fan

A technology of bladeless fan and housing, which is applied in the directions of liquid variable capacity machines, non-variable capacity pumps, variable capacity pump components, etc., and can solve the problems of large airflow transmission loss and large base in the nozzle
CN103807149AInactive Publication Date: 2014-05-21任文华
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
任文华
Publication Date
2014-05-21
Estimated Expiration
Not applicable · inactive patent

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Abstract

A bladeless fan comprises a spraying nozzle (1) and a device for generating airflow passing through the spraying nozzle, the spraying nozzle comprises a shell (3) roughly in the shape of a sphere, a cavity (4) located in the shell, and an exhaust port (5) formed in the shell, wherein the shell is provided with a pit (12) located on the downstream portion of the exhaust port. Transmission loss of airflow of the fan is low, and the fan is beautiful in shape.
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Description

technical field

[0001] The invention relates to a fan. In particular, but not exclusively, the present invention relates to a domestic fan, such as a domestic desk fan, for increasing air circulation and air flow in homes, offices and other environments. Background technique

[0002] A traditional household fan typically consists of a motor and a set of blades or impellers that are driven in rotational motion by the motor. The set of blades is typically located within a cage that allows airflow to pass through, yet prevents human access to the rotating blades. But in some cases, this kind of fan also has the danger that the human body touches the group of rotating blades.

[0003] On November 15, 1949, U.S. Patent US2488467 disclosed a fan without exposed blades. This fan includes a base and an annular nozzle arranged on the base. The base includes a motor and fan blades driven by the motor. The fan blades provide airflow to the annular nozzle, which includes an annular c...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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