Volute-free centrifugal fan

A centrifugal fan, no volute technology, used in mechanical equipment, machines/engines, non-variable-capacity pumps, etc., can solve the problems of unreasonable structure, uncompact shape, and enlarged axial size of the fan, and achieve a compact shape. , Reasonable structure, convenient disassembly and assembly

Inactive Publication Date: 2014-10-15
WEIHAI CREDITFAN VENTILATOR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The motor of the centrifugal fan without volute is usually installed on the back of the air inlet of the impeller, and the motor is fixed on the equipment through its own flange or mounting feet. The cooling of the motor with this structure needs to be equipped with a cooling fan or an external cooling device. In this way, The axial size of the fan is relatively large, and its disadvantages are: unreasonable structure, uncompact shape, cumbersome disassembly and assembly, and the need to install an external cooling device

Method used

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Embodiment Construction

[0011] Below in conjunction with accompanying drawing, the present invention is further described:

[0012] As shown in the accompanying drawings, a centrifugal fan without a volute is characterized in that it is provided with a motor 1, an impeller 2, a mounting plate 3, a motor bracket 4, a motor mounting frame 5 and a fan cylinder 6, and one end of the motor 1 is connected to the motor by fastening bolts. The mounting frame 5 is fixedly connected, and the output shaft at the other end passes through the center of the impeller 2 and is fixedly connected with the impeller 2 through bolts, so that the air outlet of the impeller 2 corresponds to the rotor of the motor to achieve self-cooling. The motor 2 is equipped with an air duct 6 , the air duct 6 is trumpet-shaped, the small-diameter end of the air duct 6 is socketed with the air inlet of the impeller 2, the large-diameter end is fixedly connected with the mounting plate 3, and the motor mounting frame 5 is fixedly connecte...

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PUM

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Abstract

The invention relates to the technical field of an axial flow fan, in particular to a volute-free centrifugal fan. The volute-free centrifugal fan is characterized by being provided with a motor, an impeller, a mounting disc, a motor bracket, a motor mounting frame and an air cylinder, wherein one end of the motor is fixedly connected with the motor mounting frame through a fastening bolt; an output shaft at the other end of the motor penetrates through the center of the impeller through a bolt to be fixedly connected with the impeller, so that an air outlet of the impeller corresponds to a motor rotor, and the effect of automatic cooling is achieved; the air cylinder sleeves the motor and is horn-shaped; the small-diameter end of the air cylinder is connected with an air inlet of the impeller in a sleeving way and the large-diameter end of the air cylinder is fixedly connected with the mounting disc; the motor mounting frame is fixedly connected with the mounting disc through the motor bracket, so that the effect of supporting the motor is achieved. Due to the adoption of the structure, the volute-free centrifugal fan has the advantages of reasonable structure, compact appearance, convenience in assembly and disassembly, capability of automatically cooling and the like.

Description

technical field [0001] The invention relates to the technical field of axial fans, in particular to a centrifugal fan without a volute. Background technique [0002] The motor of the centrifugal fan without volute is usually installed on the back of the air inlet of the impeller. The motor is fixed on the equipment through its own flange or mounting feet. The cooling of the motor with this structure needs to be equipped with a cooling fan or an external cooling device. In this way, The axial size of the fan is relatively large, and its disadvantages are: unreasonable structure, uncompact shape, complicated disassembly and assembly, and an external cooling device needs to be installed. Contents of the invention [0003] The purpose of the present invention is to solve the shortcomings of the above-mentioned prior art, and provide a centrifugal fan without volute with reasonable structure, compact appearance, convenient disassembly and assembly, and self-cooling. [0004] ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04D25/08
Inventor 石亚君王新
Owner WEIHAI CREDITFAN VENTILATOR
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