Cooling fan with outer rotor carbon fiber centrifugal impeller

Abstract

The invention provides a cooling fan with an outer rotor carbon fiber centrifugal impeller. The cooling fan comprises the carbon fiber centrifugal impeller, a glass fiber air inlet, an outer rotor motor, an aluminum alloy casing and the like; an outer rotor carbon fiber centrifugal impeller and a lightweight cooling fan for locomotive air conditioners are included; the carbon fiber centrifugal impeller and the outer rotor motor are connected by bolts to form the outer rotor carbon fiber centrifugal impeller; a stator of the outer rotor motor is mounted on a rear side plate of an aluminum alloycasing by bolts; and the glass fiber air inlet is mounted between the aluminum alloy casing and the carbon fiber centrifugal impeller, and is mainly used for diversion. When in use, the cooling fan realizes the design of the outer rotor carbon fiber centrifugal impeller and the glass fiber reinforced plastic air inlet, the outer rotor motor is small in load and high in reliability, and a completelocomotive air conditioner fan is light in weight, high in fluid efficiency, and convenient in installation and maintenance.

Description

technical field [0001] The invention relates to the technical field of ventilation and cooling equipment, in particular to a cooling fan with an outer rotor carbon fiber centrifugal impeller. Background technique [0002] The air conditioner is used to adjust the air performance of rail transit locomotives, and is one of the key equipment for rail transit AC drive locomotives. When the air conditioner is working, it will generate a lot of heat inside. In order to prevent the air conditioner from being damaged by overheating and ensure the normal operation of the AC electric locomotive, it is necessary to use a fan system to force the air conditioner to dissipate heat. The centrifugal fan is an indispensable key component in the air conditioner system. In addition, as the requirements for energy saving and reliability of rail transit are getting higher and higher, the requirements for the lightweight and reliability of its equipment are getting higher and higher. There are t...

AI Technical Summary

Problems solved by technology

At present, the centrifugal fan of locomotive air conditioner is composed of aluminum alloy impeller and steel casing. For the lightweight design of the fan, the weight reduction of the impeller is very important. The lighter the impeller, not only can realize the weight reduction of the impeller itself, but also reduce the load of the fan. Reduce the vibration of the fan and improve the reliability of key components such as fan bearings; in addition, the side lead method of the existing outer rotor motor, the side lead wire fixes the power line inside the casing with iron wires, which is easy to interfere with the rotating impeller, and the safety is poor. Inconvenient maintenance, etc.

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