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Motor possessing novel cooling structure and fluid machinery including same

A cooling structure and fluid machinery technology, applied in mechanical equipment, machines/engines, cooling/ventilation devices, etc., can solve the problems of burning motors and complex structures, and achieve the effect of simplifying the structure, reducing the complexity and simplifying the structure.

Pending Publication Date: 2018-01-26
北京智拓博科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Generally speaking, the structure is very complicated. Once there is a problem with the cooling system, it will cause a catastrophic accident of burning the motor.

Method used

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  • Motor possessing novel cooling structure and fluid machinery including same
  • Motor possessing novel cooling structure and fluid machinery including same
  • Motor possessing novel cooling structure and fluid machinery including same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Such as figure 1 As shown, a motor with a new cooling structure includes a rotor 1, a stator 3 with a winding 2 and a motor housing 4, a cooling fan 5 is installed on the rotor outside one end of the motor, and the stator 3 is fixedly connected to the motor On the casing 4, a first cavity 6 is formed between the stator 3, the motor casing 4 and the end of the motor close to the cooling fan 5, and a second cavity is formed between the stator 3, the motor casing 4 and the other end of the motor 7. The first cavity 6 and the second cavity 7 are communicated through the air gap 8 between the stator 3 and the rotor 1. There are several motor casings on the first cavity 6 and the second cavity 7. The air inlet 9 is provided with an air outlet 10 near the end of the motor of the cooling fan 5 .

[0031] In the above-mentioned embodiment, during the working process of the motor, the cooling fan rotates to drive the cooling medium air in the external environment into the first ...

Embodiment 2

[0038] Such as figure 2 As shown, a motor with a new cooling structure includes a rotor 1, a stator 3 with a winding 2 and a motor housing 4, a cooling fan 5 is installed on the rotor outside one end of the motor, and the stator 3 is fixedly connected to the motor On the casing 4, a first cavity 6 is formed between the stator 3, the motor casing 4 and the end of the motor close to the cooling fan 5, and a second cavity is formed between the stator 3, the motor casing 4 and the other end of the motor 7. The first cavity 6 and the second cavity 7 are communicated through the air gap 8 between the stator 3 and the rotor 1. There are several motor casings on the first cavity 6 and the second cavity 7. The air inlet 9 is provided with an air outlet 10 near the end of the motor of the heat dissipation fan 5 , and the outside of the stator 3 is provided with an airflow channel 11 for communicating with the first cavity 6 and the second cavity 7 . Specifically, the air flow channel ...

Embodiment 3

[0046] This embodiment is a further optimization on the basis of Embodiment 1 or Embodiment 2. The difference is that, on the basis of Embodiment 1 or 2, this embodiment also includes the following features:

[0047] The two ends of the rotor 1 and the motor are connected through dynamic pressure air bearings. The concrete structure of above-mentioned dynamic pressure air bearing can be as follows image 3 As shown, the dynamic pressure air bearing includes a set of bearings 161, an elastic support foil 162 and a top layer foil 163 arranged coaxially from outside to inside, and the elastic support foil 162 and the top layer foil 163 are separated along the circumferential direction of the bearing sleeve 161. There are multiple sets, each set of top layer foil 163 is connected to one end of the elastic support foil 162 and fixed on the bearing sleeve 161 through this end, and the other end extends along the inner circumferential wall of the bearing sleeve 161 to form a free end...

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PUM

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Abstract

The present invention discloses a motor possessing a novel cooling structure. The motor comprises a rotor, a stator with windings and a motor casing, a radiating fan is installed on the rotor at the outer side of one end part of the motor, and the stator is fixedly connected with the motor casing. A first cavity is formed among the stator, the motor casing and the end part of the motor close to the radiating fan, and a second cavity is formed among the stator, the motor casing and the other end part of the motor. The first and second cavities are communicated via an air gap between the statorand the rotor, the motor casing at the first cavity and the motor casing at the second cavity are both equipped with a plurality of air inlets, and the end part of the motor close to the radiating fanis equipped with an air outlet. On the condition of not increasing the cooling structures, and by fully utilizing the characteristic that the fluid machinery equipment absorb the external gases by themselves, the absorbed gas is utilized directly to cool the electrical components, the structure is simple, and the reliability is improved.

Description

technical field [0001] The invention relates to the technical field of motor cooling, in particular to a motor with a novel cooling structure, and also to the above-mentioned fluid machine driven by the motor. Background technique [0002] The motor will generate a certain amount of heat during the working process. Only with good heat dissipation can the motor work normally. If the heat dissipation is not smooth and the accumulated heat exceeds the bearing capacity of the stator and rotor, there will be a catastrophic accident of burning the motor. Therefore, in the process of motor development and production, heat dissipation is very important. [0003] For large-scale fluid machinery that needs to work stably for a long time, the cooling of the frequency converter and the motor must be taken very seriously. If there is a problem with the cooling system, the service life of the equipment will be greatly shortened and the equipment may even be damaged instantly. How to co...

Claims

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Application Information

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IPC IPC(8): H02K9/06H02K9/08F04D25/06F04D25/08F04D29/58
Inventor 李记东
Owner 北京智拓博科技有限公司