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Motor cooling structure and non-casing motor with same

A technology for motor cooling and cooling structure, which is applied in the direction of cooling/ventilation device, magnetic circuit shape/style/structure, electric components, etc. It can solve the problems of difficult cooling of stator teeth, so as to save the casing, reduce the distance, reduce the The effect of temperature rise

Active Publication Date: 2017-05-10
HUAZHONG UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The invention solves the problem of difficulty in cooling the windings and stator teeth of the concentrated winding motor

Method used

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  • Motor cooling structure and non-casing motor with same
  • Motor cooling structure and non-casing motor with same
  • Motor cooling structure and non-casing motor with same

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Embodiment Construction

[0041] 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.

[0042] image 3 It is a schematic diagram of the water flow direction of a cooling plate structure of a motor cooling structure according to an embodiment of the present invention. like image 3 As shown, a cooling medium flow channel arranged along the circumferential direction is arranged inside the cooling plate. At the tooth portion of the cooling plate, the cooling medium is introduced in...

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Abstract

The invention discloses a motor cooling structure, which comprises a cooling plate and cooling teeth, wherein the cooling plate comprises tooth parts and a cooling medium runner connected to the tooth parts, wherein an inward bulge is arranged on the inner wall of each tooth part; a baffle plate is arranged in each tooth part to form a tooth part runner and to communicate with the cooling medium runner connected with the tooth parts, so that a cooling medium can flow in the cooling plate along the runner and cooling of a stator is achieved; and each cooling tooth comprises a cooling tooth root part and a cooling tooth part and is used for transferring heat generated by a winding of the motor to the cooling plate and transmitting the heat through the cooling medium, so that cooling of the stator and the winding of the motor is achieved. The invention further discloses a concentrated fractional-slot winding non-casing permanent magnet motor with the cooling structure. According to the cooling structure, stator teeth and the winding of the motor can be well cooled, a motor casing can be omitted, the volume and the weight of the motor are reduced and the power density of the motor is further improved.

Description

technical field [0001] The invention belongs to the technical field of motor cooling, and in particular relates to a motor cooling structure and a casing-less motor with the structure. Background technique [0002] High power density motors are widely used in electric vehicles, aviation motors and other occasions that have strict requirements on the volume 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 The temperature rise of important components such as steel is too high, which reduces the life of the motor and affects the safety and economy of motor operation. [0003] Concentrated winding motors, such as fractional slot concentrated winding permanent magnet motors and switched reluctance motors, one wind...

Claims

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Application Information

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IPC IPC(8): H02K1/20H02K3/50H02K9/19H02K9/22
CPCH02K1/20H02K3/50H02K9/19H02K9/22
Inventor 曲荣海范兴纲李大伟
Owner HUAZHONG UNIV OF SCI & TECH
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