Compact water-cooling three phase asynchronous motor

A three-phase asynchronous motor technology, applied in the field of motors, can solve the problems of large volume of cooling devices, poor cooling effect, large installation space, etc., and achieve the effects of increasing cooling area, prolonging service life and low manufacturing cost

Inactive Publication Date: 2009-08-05
SHANXI EXPLOSION PROOF MOTOR GRP CO LTD
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0002] The existing motor cooling methods include air cooling, water cooling, and air-water mixed cooling. The cooler is two separate bodies, and the cooler is placed above the motor, which has a large volume and high manufacturing cost; the existing water cooling device for the motor has no cooling air duct, and only relies on heat conduction to cool the outside of the motor stator, the cooling effect is poor, and there is no cooling water Exhausting the channels affects the long-term use, storage and maintenance of the motor and shortens the service life of the motor

Method used

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  • Compact water-cooling three phase asynchronous motor
  • Compact water-cooling three phase asynchronous motor

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Embodiment Construction

[0008] Such as figure 1 , figure 2 As shown, the compact water-cooled three-phase asynchronous motor includes a stator 3, a rotor 6, a cooling device and a casing 4. The cooling device adopts air-water composite cooling, and the cooling device includes an internal circulation air path and a water circulation channel; the water jacket covers the outside of the motor stator core 3, and is composed of an inner water jacket 7 and an outer water jacket 5, and a water channel 14 is arranged in the middle. It can be a radial spiral water channel or an axial reciprocating water channel. The two ends of the water channel are provided with a water inlet 2 and a water outlet 8. The cooling water exhaust channel 11 is directly below the motor and connected to the water channel 14; the outer water jacket 5 and the outer casing 4 Between is cooling air channel 13.

[0009] The internal circulating air is composed of a fan 10 , an air inlet 9 , a cooling air duct 13 , an air outlet 1 and ...

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Abstract

The invention provides a compact water-cooling three-phase asynchronous motor, belonging to the field of motor technology, in particular to a motor cooling system. The motor cooling system has the main technical characteristic that the cooling device adopts composite cooling of air and water; the cooling system comprises an internal circulation wind passage and a water circulation passage; a water jacket is sheathed outside the stator core of the motor and consists of an internal water jacket and an external water jacket; a water passage is arranged between the internal water jacket and the external water jacket; the water passage is a radial spiral water passage or an axial reciprocating water passage; one end of the water passage is provided with a water inlet and the other end of the water passage is provided with a water outlet; the cooling water drainage passage is arranged right below the motor and connected with the water passage; a cooling wind passage is arranged between the external water jacket and the shell of the motor; and two ends of the cooling wind passage are respectively provided with a wind inlet and a wind outlet. The motor has small volume, low production cost and good heat dissipation effect, and increases the power by more than two times compared with other motors of the same volume.

Description

technical field [0001] The invention belongs to the technical field of electric motors, in particular to a cooling system for electric motors. technical background [0002] The existing motor cooling methods include air cooling, water cooling, and air-water mixed cooling. The cooler is two separate bodies, and the cooler is placed above the motor, which is bulky and expensive to manufacture; the water cooling device of the existing motor has no cooling air duct, and only relies on heat conduction to cool the outside of the motor stator, the cooling effect is poor, and there is no cooling water Exhausting the channels affects the long-term use, storage and maintenance of the motor, and shortens the service life of the motor. Contents of the invention [0003] The invention provides a compact water-cooled three-phase asynchronous motor, which reduces the volume, reduces the manufacturing cost, improves the heat dissipation effect and prolongs the service life of the motor. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K17/12H02K9/02H02K9/19
Inventor 张可程杨枢林文敬怀段淑贞文斌卫翠粉王国义
Owner SHANXI EXPLOSION PROOF MOTOR GRP CO LTD
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