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A motor stator and an oil-cooled motor having the motor stator

A motor stator and oil cooling technology, applied in the direction of electromechanical devices, electrical components, electric components, etc., can solve the problems of poor motor safety, low cooling efficiency, poor cooling effect, etc., to avoid oil churning loss, reduce temperature rise, reduce Effect of Winding Loss

Active Publication Date: 2020-06-09
HUAZHONG UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] In view of the above defects or improvement needs of the prior art, the present invention provides a motor stator and an oil-cooled motor having the motor stator, thereby solving the problems of poor cooling effect, low cooling efficiency, and poor motor operation safety in the prior art. technical problem

Method used

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  • A motor stator and an oil-cooled motor having the motor stator
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  • A motor stator and an oil-cooled motor having the motor stator

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Embodiment Construction

[0034] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not constitute a conflict with each other.

[0035] Such as figure 1 As shown, a motor stator includes a stator core 1 and a winding coil 2. The stator core 1 includes a stator yoke 3 and a stator tooth 4. The winding coil 2 is wound around each stator in the stator tooth 4 with a single tooth. On the teeth, an oil channel 5 in the groove is provided between two adjacent stator teeth, and the outer wall of the stator yoke 3 is provided wi...

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Abstract

The invention discloses a motor stator, and an oil-cooling motor having the motor stator, wherein the motor stator comprises a stator core and a winding coil, wherein the stator core comprises a stator yoke portion and a stator tooth portion, the winding coil is wound on each of the stator teeth in the stator tooth portion in a single tooth way, in-tank oil passages are disposed between two adjacent stator teeth, and the outer wall of the stator yoke portion is provided with axially and circumferentially combined grooves as oil passages of the yoke portion. The cooling structure increases thecontact area between the cooling oil and the winding and the iron core respectively, and can cool the key parts such as the center winding and the end winding of the in-tank winding, thereby improvingthe cooling efficiency, reducing the temperature rise of the motor, and ensuring the safe operation of the motor.

Description

technical field [0001] The invention belongs to the field of motors, and more specifically relates to a motor stator and an oil-cooled motor with the motor stator. Background technique [0002] High power density motors are widely used in electric vehicles, aircraft generators and other occasions that have strict requirements on the size and weight of the motor. Due to the high electromagnetic load of this type of motor, the loss per unit volume is very large, but the heat dissipation area is relatively reduced, so it is difficult to dissipate heat. Water cooling or oil cooling is often used to cool the motor to prevent the motor winding and magnetic steel The temperature rise of important components such as the motor is too high, thereby reducing the life of the motor and affecting the safety and economy of the motor operation. [0003] Compared with the water cooling method, the cooling oil in the oil cooling method can directly contact the surface of the heating part of ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02K1/20H02K1/16H02K9/197
CPCH02K1/16H02K1/20H02K9/197
Inventor 李大伟范兴纲曲荣海房莉王聪
Owner HUAZHONG UNIV OF SCI & TECH