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Stator core and motor

A stator core and stator punching technology, applied in electrical components, electromechanical devices, magnetic circuit shape/style/structure, etc., can solve problems such as inability to effectively reduce motor temperature rise, limited cooling effect, and large eddy current loss, etc. The effect of full contact, reducing temperature rise and improving performance

Pending Publication Date: 2018-06-01
博远机电(嘉兴)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] With the development of the power industry at any time, the requirements for environmental protection and energy saving are also increasing. Therefore, the application range of permanent magnet motors at home and abroad is becoming more and more extensive, and ultra-high-speed permanent magnet motors can better improve energy saving effects and reduce costs. Broad prospects; but the temperature rise of the motor is the main factor limiting the speed of the motor
[0003] However, the stator core of the traditional motor is basically laminated with 0.5 mm thick stator punches, which has a large eddy current loss and a large iron loss.
In addition, the ventilation and heat dissipation of traditional motors mainly rely on the ventilation of the inner cavity to enter the air gap or radial air path to cool the motor and reduce the temperature rise. This cooling method has limited cooling effect and cannot effectively reduce the temperature rise of the motor.

Method used

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] figure 1 A side view of the stator core provided for the embodiment of the present invention; figure 2 A top view of the stator core provided for the embodiment of the present invention; image 3 A schematic structural view of the stator punching sheet of the stator core provided by the embodiment of the present invention; Figure 4 An enlarged view of the outer diameter teeth of the stator punching sheet of the stator core provided for the embodiment of the present invention; Figure 5 An enlarged view of the inner diameter slot of the stator punching sheet of the stator core provided by the embodiment of the present invention.

[0039] Such as Figure 1-5 As shown, the stator core provided in this embodiment includes multiple sets of stator punches 100, and multiple sets of stator punches 100 are arranged in layers; the stator punches 100 are provided with a plurality of outer diameter grooves 102 adjacent to each other. Each set of stator punching pieces 100 rot...

Embodiment 2

[0056] The motor provided in this embodiment includes: the above-mentioned stator core.

[0057] The motor provided in this embodiment includes the above-mentioned stator core. Due to the setting of the stator core, the motor has all the advantages of the above-mentioned stator core. During use, the cooling medium can more fully contact the stator core, and compared with the traditional stator core, the contact area between the cooling medium and the stator core is smaller. Large, so that the heat generated on the stator core can be taken out by the cooling medium in a timely manner; thus, it can better reduce the temperature rise of the motor and improve the performance of the motor.

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Abstract

The invention relates to the technical field of motors, and particularly relates to a stator core and a motor. The stator core includes multiple sets of stator punching sheets, and the multiple sets of stator punching sheets are sequentially in stacked arrangement; multiple outer diameter grooves are arranged on the stator punching sheets, the adjacent sets of stator punching sheets perform rotation, and the multiple outer diameter grooves form a spiral groove; and the motor includes the above stator core. According to the scheme of the invention, the technical problem that the temperature rise of the stator core of the motor in the prior art cannot be effectively controlled can be alleviated.

Description

technical field [0001] The invention relates to the technical field of motors, in particular to a stator core and a motor. Background technique [0002] With the development of the power industry at any time, the requirements for environmental protection and energy saving are also increasing. Therefore, the application range of permanent magnet motors at home and abroad is becoming more and more extensive, and ultra-high-speed permanent magnet motors can better improve energy saving effects and reduce costs. Broad prospects; but the temperature rise of the motor is the main factor limiting the speed of the motor. [0003] However, the stator cores of traditional motors are basically laminated with 0.5 mm thick stator punches, and the eddy current loss is large, resulting in large iron losses. In addition, the ventilation and heat dissipation of traditional motors mainly rely on the ventilation of the inner cavity to enter the air gap or radial air path to cool the motor and...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K1/12H02K1/20
CPCH02K1/12H02K1/20H02K2213/03Y02T10/64
Inventor 张永生杨俊峰杜洪伟蔡蕾
Owner 博远机电(嘉兴)有限公司
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