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Centrifugal fan and its vacuum cleaner

A centrifugal fan and air duct technology, applied in vacuum cleaners, machines/engines, mechanical equipment, etc., can solve the problems of insufficient heat dissipation of the motor and low efficiency of the whole machine, so as to be beneficial to heat dissipation and improve the efficiency of the whole machine , the effect of reducing the rotation speed

Active Publication Date: 2019-12-31
GUANGDONG MIDEA WHITE HOME APPLIANCE TECH INNOVATION CENT CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The centrifugal fan used in the vacuum cleaner in the related art has low efficiency of the whole machine due to its own limitations in structural design and the problem of heat dissipation of the motor has not been well solved.

Method used

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  • Centrifugal fan and its vacuum cleaner
  • Centrifugal fan and its vacuum cleaner
  • Centrifugal fan and its vacuum cleaner

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Embodiment Construction

[0034] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.

[0035] In describing the present invention, it is to be understood that the terms "central", "longitudinal", "transverse", "front", "rear", "vertical", "horizontal", "inner", "outer", The orientation or positional relationship indicated by "clockwise", "counterclockwise", "axial", "radial", and "circumferential" is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplified descriptions, rather than indicating or implying that the device or ...

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Abstract

The invention discloses a centrifugal fan and a dust collector with the centrifugal fan. The centrifugal fan comprises a shell, an impeller and a stationary blade assembly. The shell is provided with an air inlet and an air outlet. The impeller and the stationary blade assembly are both arranged in the shell. The stationary blade assembly is located on the down stream of the impeller. An air flue suitable for airflow flowing is defined by the stationary blade assembly and the inner wall of the shell. The stationary blade assembly comprises a blade pressure expander and a backflow device arranged on the down stream of the blade pressure expander. The blade pressure expander comprises a pressure expander body and multiple pressure expansion blades arranged on the pressure expander body. The backflow device comprises a backflow device body and multiple backflow blades arranged on the backflow device body. The backflow device body is connected with the pressure expander body to form a hub of the stationary blade assembly. The outlet angle of each backflow blade is beta 6, and beta 6 is larger than or equal to 70 degrees. A motor is arranged on the down stream of the backflow device and connected with the impeller. The centrifugal fan is low in energy consumption and long in service life.

Description

technical field [0001] The invention relates to the technical field of vacuum cleaners, in particular to a centrifugal fan and a vacuum cleaner with the same. Background technique [0002] The centrifugal fan used in the vacuum cleaner is the core functional part of the vacuum cleaner. Reasonable aerodynamic design and structural design of the centrifugal fan can effectively improve the performance of the vacuum cleaner and reduce energy consumption. The centrifugal fan used in the vacuum cleaner in the related art has low efficiency of the whole machine due to its own limitations in structural design, and the problem of heat dissipation of the motor has not been well solved. Contents of the invention [0003] The present invention aims to solve at least one of the technical problems existing in the prior art. Therefore, the present invention proposes a centrifugal fan, which has low energy consumption and long service life. [0004] The present invention also proposes a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F04D29/44F04D29/08F04D29/28A47L5/22
CPCA47L5/22F04D29/083F04D29/28F04D29/444
Inventor 明乐乐胡小文张辉张坤韩潇愔
Owner GUANGDONG MIDEA WHITE HOME APPLIANCE TECH INNOVATION CENT CO LTD
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