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Stator, motor, compressor and refrigeration equipment

A stator and stator slot technology, used in the fields of stators, motors, compressors and refrigeration equipment, can solve the problems of motor demagnetization, frequent maintenance, affecting the normal use of motors, etc. Effect

Pending Publication Date: 2020-12-25
ANHUI MEIZHI PRECISION MFG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the running state of the motor, the motor is prone to local demagnetization during the running state, and frequent maintenance is required, which seriously affects the normal use of the motor

Method used

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  • Stator, motor, compressor and refrigeration equipment
  • Stator, motor, compressor and refrigeration equipment
  • Stator, motor, compressor and refrigeration equipment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] Such as figure 1 and figure 2 As shown, the first embodiment of the present invention proposes a stator, including: a stator core 102 .

[0047] Wherein, the stator core 102 includes a plurality of stator teeth 104 , and the plurality of stator teeth 104 are distributed along the circumference of the stator core 102 and extend toward the axis of the stator core 102 . Wherein, a stator slot 106 is formed between two adjacent stator teeth 104 , the stator slot 106 has a notch 108 , and the notch 108 is located at one end facing the axial center of the stator core 102 .

[0048] Such as figure 2 As shown, the width of the notch 108 is b, the height of the notch 108 along the radial direction of the stator core 102 is h, and satisfy 0.31≤h / b≤0.39. That is, the ratio of the height h to the width b of the notch 108 must be greater than or equal to 0.31 and less than or equal to 0.39.

[0049] It should be noted that the width and height of the slots 108 of the stator core...

Embodiment 2

[0053] Such as figure 1 and figure 2 As shown, the second embodiment of the present invention proposes a stator, including: a stator core 102 .

[0054] Wherein, the stator core 102 includes a plurality of stator teeth 104 , and the plurality of stator teeth 104 are distributed along the circumference of the stator core 102 and extend toward the axis of the stator core 102 . Wherein, a stator slot 106 is formed between two adjacent stator teeth 104 , the stator slot 106 has a notch 108 , and the notch 108 is located at one end facing the axial center of the stator core 102 .

[0055] Such as figure 2 As shown, the width of the notch 108 is b, the height of the notch 108 along the radial direction of the stator core 102 is h, the inner diameter of the stator core 102 is Di, the number of stator slots 106 is Q, and 0.17≤Q× b / (π×Di)≦0.22.

[0056] It is worth noting that the stator slot 106 is a semi-open slot, slot opening will lead to an increase in air gap harmonics, whi...

Embodiment 3

[0058] Such as figure 1 and figure 2 As shown, the third embodiment of the present invention proposes a stator, including: a stator core 102 .

[0059] Wherein, the stator core 102 includes a plurality of stator teeth 104 , and the plurality of stator teeth 104 are distributed along the circumference of the stator core 102 and extend toward the axis of the stator core 102 . Wherein, a stator slot 106 is formed between two adjacent stator teeth 104 , the stator slot 106 has a notch 108 , and the notch 108 is located at one end facing the axial center of the stator core 102 .

[0060] Such as figure 2 As shown, the width of the notch 108 is b, the height of the notch 108 along the radial direction of the stator core 102 is h, and satisfy 0.31≤h / b≤0.39. That is, the ratio of the height h of the notch 108 to the width b is greater than or equal to 0.31 and less than or equal to 0.39.

[0061] Further, the inner diameter of the stator core 102 is Di, the number of the stator ...

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PUM

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Abstract

The invention provides a stator, a motor, a compressor and refrigeration equipment. The stator comprises a stator iron core, wherein the stator iron core comprises a plurality of stator teeth, a stator slot is formed between every two adjacent stator teeth, each stator slot is provided with a notch, the width of each notch is b, the height of each notch in the radial direction of the stator iron core is h, and h / b is greater than or equal to 0.31 and less than or equal to 0.39. According to the invention, the demagnetization capability of the motor using the stator can be effectively improved,the demagnetization resistance of the motor is further effectively improved, the permanent magnet demagnetization risk of the motor in the use process can be avoided to a great extent, and the maintenance frequency and the maintenance frequency are reduced.

Description

technical field [0001] The invention relates to the technical field of motors, in particular to a stator, a motor, a compressor and refrigeration equipment. Background technique [0002] For compressors used in refrigeration equipment such as air conditioners, frequency conversion motors have become the mainstream technology, fixed speed models have gradually withdrawn from the market, and all frequency conversion motors have arrived. At present, the motors of variable frequency compressors are developing towards the design structure of multi-slot and multi-pole. However, in the running state of the motor, the motor is prone to local demagnetization during the running state, and frequent maintenance is required, which seriously affects the normal use of the motor. Contents of the invention [0003] The present invention aims to solve at least one of the technical problems existing in the prior art. [0004] To this end, the first aspect of the present invention provides ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K1/16H02K1/27
CPCH02K1/165H02K1/2766H02K2213/03
Inventor 张德金邱小华杨森
Owner ANHUI MEIZHI PRECISION MFG
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