Liquid-cooled motor

A technology of liquid-cooled motors and motor housings, which is applied in the direction of electrical components, electromechanical devices, and electric components, and can solve the problems of large loss, poor cooling effect of internally cooled motors, and high cost, and achieve lower thermal resistance and reduced Mechanical loss, reducing the effect of thermal resistance chain

Inactive Publication Date: 2013-06-12
TIANJIN SANTROLL ELECTRIC AUTOMOBILE TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to overcome the deficiencies in the prior art, adopt the technical scheme of the internal circulation liquid cooling motor, solve the problems of poor cooling effect, large loss and high cost of the existing internal cooling motor, and provide a low cost, small loss and high cooling effect Excellent liquid-cooled motor structure

Method used

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Examples

Experimental program
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Embodiment 5

[0037] In Example 5, the second sealing cover (13) has an overflow hole (17) and the corresponding return hole, but the first sealing cover (12) does not have it. In fact, the first sealing cover (12) has an overflow hole (16) Or the second seal cover (13) has an overflow hole (16) or both seal covers have overflow holes (16), and the overflow hole (16) is located on the upper part of the seal cover where it is located and the bearing on its side ( 18) above, the lower part of the motor housing (1) has a return hole (17), the return hole (17) is located under the bearing (18) on the side where it is located, and the return hole (17) communicates with the liquid storage tank (11) . If the first sealing cover (12) or the second sealing cover (13) has an overflow hole (16), the bearing (18) on the side thereof is an open bearing. When the liquid level rises to the height of the overflow hole (16), the coolant (cooling oil at this time) overflows through the overflow hole (16), p...

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Abstract

The invention discloses a liquid-cooled motor. A sealing cover is arranged on each side of a stator core (2) respectively; the two sealing covers are of annular structures; the two sealing covers, the inner wall of a motor shell (1) and a side face of the stator core (2) form a closed space together; the two sealing covers are communicated through a plurality of grooves (14) in an outer annular wall of the stator core (2) or the inner wall of the motor shell or a liquid transport pipe (10); the motor shell (1) is provided with a plurality of communicating holes (15); the two sealing covers are connected with the liquid transport pipe (10) and a liquid storage tank (11) through the communicating holes (15); and the two sealing covers, the motor shell (1), the liquid transport pipe (10), a radiator (9), a pump (8) and the liquid storage tank (11) form a liquid circulation loop. The invention aims to overcome the defects of integral oil immersed, oil injection and oil flow type cooling methods in the prior art, and provides a liquid-cooled motor structure which has the advantages of excellent cooling effect, small thermal resistance and low cost.

Description

technical field [0001] The invention belongs to the field of motor liquid cooling, and in particular relates to a liquid cooling motor which is cooled by a sealing cover at the end of a stator winding. Background technique: [0002] When the motor is working, it will generate a lot of heat, especially for high-power motors. The heat generated is very large and needs to be discharged in time. Motors can be divided into two types according to different cooling media: air-cooled and liquid-cooled. Air-cooled technology has a poor cooling effect due to the small specific heat of gas. If hydrogen cooling is used, the requirements for explosion-proof grades and additional cooling devices are high, and it is not easy to use in small and medium-sized motors. popularized on motors. The internal liquid cooling of the motor can make the heating element contact with the heat transfer oil, greatly reduce the thermal resistance chain and thermal resistance value between the winding and t...

Claims

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Application Information

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IPC IPC(8): H02K9/197
Inventor 胡淼杨凯新
Owner TIANJIN SANTROLL ELECTRIC AUTOMOBILE TECH CO LTD
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