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Evaporation fan used for vehicle air conditioning system

A technology for automobile air conditioning systems and evaporative fans, which is applied to components of pumping devices for elastic fluids, machines/engines, liquid fuel engines, etc., can solve the problems of inconvenient installation and maintenance, high work intensity, etc. The effect of heat exchange, improving efficiency, and large wind pressure

Inactive Publication Date: 2010-06-02
SONGZ AUTOMOBILE AIR CONDITIONING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the dual-axis fan is used, it is directly fixed with screws in the automobile air-conditioning system. The method of direct screw fixation adopted has a high working intensity and is inconvenient for installation and maintenance.

Method used

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  • Evaporation fan used for vehicle air conditioning system
  • Evaporation fan used for vehicle air conditioning system
  • Evaporation fan used for vehicle air conditioning system

Examples

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Embodiment Construction

[0019] An evaporating fan used in an automobile air-conditioning system according to the present invention will be further described below in conjunction with the accompanying drawings.

[0020] An evaporating fan for an automobile air-conditioning system, comprising a volute base 1, an impeller (a first impeller 2 and a second impeller 8), a motor 5 and a volute upper cover 10, and adopts a centrifugal double-shaft fan, the double-shaft fan The fixing method is the screw push type, through the wedge nut 12 and the cotter pin 11, the screw 9 fixes the double-axis fan to the installation room of the air conditioner (HVAC) assembly, wherein the screw 9 passes through the small hole on the end surface of the base, and the threaded end is screwed Insert the wedge nut 12 into the threaded hole; the split pin 11 passes through the relevant hole of the volute base 1, so that the screw 9 and the wedge nut 12 are constrained within a limited range, and the wedge nut 12 will not slip off...

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PUM

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Abstract

The invention relates to an evaporation fan used for a vehicle air conditioning system, which comprises a volute base, impellers, a motor assembly and a volute upper cover. In the evaporation fan, a centrifugal type biaxial fan is adopted; the biaxial fan is fixed in a screw rod propelling mode; the biaxial fan is fixed inside an installation chamber of an air conditioning (HVAC) assembly with wedge nuts and opening pins by a screw rod; the volute base is an assembly base framework of a fan structure; the motor assembly is fixed in a hemicycle recess in the middle of the volute base; a first impeller and a second impeller are fixed on two extending axle ends of the motor through an interference assembly; a wave filter is fixed on the two sides of the recess of the volute base through self-tapping screws and encases the other edges of a motor excircle; and the volute upper cover is fixedly arranged on the upper ends of the impellers through the self-tapping screws and forms an air duct of the fan with the volute base. The fan has the advantages of low noise, convenient installation and maintenance, reduced total installation time and labor intensity, and improved fan efficiency.

Description

【Technical field】 [0001] The invention relates to the technical field of automobile accessories, in particular to an automobile air-conditioning system, in particular to an evaporating fan used in the automobile air-conditioning system. 【Background technique】 [0002] At present, the evaporative fans used in automobile air conditioners use centrifugal single-axis fans and double-axis fans. When a centrifugal single-axis fan is used, the fan blades are uniformly distributed vertically (the distance between two adjacent blades is equal, and the blades are parallel to the axis); the impeller of this fan has a certain natural frequency When the fan is running, a vortex will be formed behind each impeller, and a certain amount of noise will be generated; this is because the blades are evenly spaced, and the vortex of the same size will easily be generated behind the blades, and the generated noise will be superimposed on each other, resulting in a resonance phenomenon, making the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04D25/16F04D1/00F04D29/30
Inventor 刘维华易辉根许国建李春华
Owner SONGZ AUTOMOBILE AIR CONDITIONING