Volute of centrifugal fan, centrifugal fan and electric appliance

A centrifugal fan and volute technology, applied in the direction of machines/engines, mechanical equipment, liquid fuel engines, etc., can solve problems such as high noise, and achieve the effect of reducing noise, improving experience, and reducing impact
CN110219828AActive Publication Date: 2019-09-10HISENSE (GUANGDONG) AIR CONDITIONER
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Applications(China)
Current Assignee / Owner
HISENSE (GUANGDONG) AIR CONDITIONER
Publication Date
2019-09-10

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Abstract

The embodiment of the invention discloses a volute of a centrifugal fan, the centrifugal fan and an electric appliance, and relates to the technical field of centrifugal fans. The volute of the centrifugal fan is invented for solving the problem that when an existing centrifugal fan works, noise is large. The volute of the centrifugal fan comprises a volute body, the volute body is provided with avolute tongue, the depth of the portion, located at the first position, of the volute tongue is larger than that of the portion, located at the second position, of the volute tongue, and the distancefrom the first position to the air inlet end of the volute body is smaller than that from the second position to the air inlet end of the volute body. The volute of the centrifugal fan can be appliedto electric appliances such as a dehumidifier and a mobile air conditioner.
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Description

technical field

[0001] The invention relates to the technical field of centrifugal fans, in particular to a volute of a centrifugal fan, a centrifugal fan and electrical appliances. Background technique

[0002] Centrifugal fans are widely used in dehumidifiers, mobile air conditioners and other electrical appliances due to their advantages of large suction and compact structure. The volute is one of the core components of the centrifugal fan. Its function is to guide the gas leaving the impeller to the outlet of the volute and convert part of the dynamic pressure of the gas into static pressure. A volute tongue is usually provided at the air outlet of the volute of the centrifugal fan, and the volute tongue can prevent a part of gas from circulating in the volute. The structural design of the volute tongue is very important, directly related to the performance of the centrifugal fan.

[0003] A volute of a centrifugal fan in the prior art, such as figure 1 As shown, the ...

Claims

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