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Volute fan

A volute fan and volute technology, applied in the direction of mechanical equipment, machine/engine, liquid fuel engine, etc., can solve the problems of complex process and poor maintainability, and achieve the goals of simplifying the installation process, reducing the load, and improving the air supply efficiency Effect

Active Publication Date: 2015-12-02
GREE ELECTRIC APPLIANCES INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Under this structure, if the volute fan fails and needs to be repaired and replaced, the volute 94 must be removed first, and then the motor 91 and the impeller 93 are removed from the mounting plate 92. If the motor 91 is fixed on the installation Behind the plate 92, if the motor 91 needs to be inspected, the mounting plate 92 needs to be removed. The process is very complicated and the maintainability is poor.

Method used

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  • Volute fan
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Examples

Experimental program
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Embodiment 1

[0036] Embodiment 1 relates to a volute fan, in this embodiment, such as Figure 5 As shown, the volute is used to accommodate the impeller. Seen from the axial section including the axis of the impeller, the distance from each point on the volute wall near the centerline of the volute to the axis is greater than that on the volute wall on both sides. The distance from the point to the axis 144. Wherein, the aforementioned volute centerline refers to the volute centerline 139 perpendicular to the impeller axis 144 . Preferably, the volute is viewed from an axial section obtained by cutting the volute from a plane containing the axis 144 of the impeller, from each point on the inner wall of the volute close to the centerline 139 of the volute in the direction of the axis 144 to the The distance from the axis 144 is greater than the distance from each point on the inner wall of the volute on both sides of the axis to the axis 144, and the maximum difference is H, as Figure 4 ...

Embodiment 2

[0064] Example two such as figure 2 As shown, it relates to a volute fan, which includes a volute 84 , an impeller 83 , and a motor 81 . The volute 84, which is used to accommodate the impeller 83, includes at least one side wall and a peripheral wall surrounding the impeller, and is formed into a cylindrical shape whose radius relative to the axis of the motor increases along the direction of rotation of the impeller 83, the inside of the volute 84 An air supply passage is formed, which extends in a tangential direction from the peripheral wall of the volute 84 on the side with a larger radius relative to the motor axis, and the impeller 83 is rotated to send air to the air supply passage. . The motor 81 is installed on the side wall of the volute 84, and the rotating shaft 112 of the motor 81 passes through the said side wall of the volute 84 and is connected with the impeller 83 inside the volute 84 and can drive the impeller 83 to rotate. The other side opposite to the ...

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Abstract

The invention is aimed at providing a volute fan convenient and fast to install and maintain. The problem that an existing volute fan motor cannot be installed on a volute is mainly solved. The volute fan comprises a volute, a motor and an impeller. The impeller is contained in the volute. The motor is fixed to one side plate of the volute and connected with the impeller in the volute so that the impeller can be driven to rotate. A volute air inlet is formed in the other side, opposite to the side where the motor is installed, of the volute. According to the volute fan, the motor and the impeller are directly installed on the volute, the motor, the impeller and the volute can be dismounted and mounted synchronously, and thus installation and maintenance are convenient.

Description

technical field [0001] The invention relates to the field of air supply mechanisms, in particular to a volute fan. Background technique [0002] Volute fans currently on the market, such as figure 1 As shown, it includes a motor 91, a mounting plate 92, an impeller 93, and a volute 94. The volute 94 is integrally formed. The motor 91 is installed on one side of the mounting plate 92, and the impeller 93 and the volute 94 are installed on the other side of the mounting plate. After the motor shaft passes through the mounting plate 92, it is connected with the impeller 93 to drive the impeller 93 to rotate. The side of the volute 94 close to the mounting plate 92 is open, and the side away from the mounting plate 92 forms an air suction port. The volute is sleeved on the impeller. 93 and together with the mounting plate 92 forms a space for accommodating the impeller 93. The installation steps of this structure are as follows: first install the motor 91 to the mounting plate...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04D25/08F04D29/62
Inventor 姚俊华孟宪运潘龙腾吴舸李德清金海元丘晓宏王朝新张永成曾庆和温骊陈圣文杨杰臧允舒林裕亮
Owner GREE ELECTRIC APPLIANCES INC