Insulation structure and motor
A technology of insulation structure and insulation section, applied in the shape/style/structure of motor, winding insulation, electric components, etc., can solve the problems of increased motor loss, low stator slot full rate, and reduced efficiency, and increase creepage distance , Improve the performance of the motor and enhance the effect of electrical safety
Active Publication Date: 2021-03-26
ZHUHAI GREE REFRIGERATION TECH CENT OF ENERGY SAVING & ENVIRONMENTAL PROTECTION
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Problems solved by technology
[0002] In order to improve the performance of the motor and reduce the cost, the existing variable frequency compressors mostly adopt the stator winding method of concentrated winding, and most of the stators are only equipped with a slot insulation structure, and there is no interphase insulation structure, resulting in two phases in the same slot. It is necessary to keep a large distance between them to ensure electrical safety, which leads to a low slot fullness of the stator
As shown in the following formula ①, the copper loss of the motor is inversely proportional to the wire diameter of the winding, and the slot full ratio S∝D, so the lower the slot full ratio of the motor, the smaller the wire diameter D used for the winding, and the greater the copper loss of the motor , according to formula ②, the motor loss increases and the efficiency decreases
Method used
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[0043] see in conjunction Figure 1 to Figure 4 As shown, according to the embodiment of the present application, an insulating structure includes an insulating member 1, and the insulating member 1 is arranged in a stator. The stator includes at least adjacent first teeth and second teeth, and the first teeth are wound with a second tooth A coil 2, a second coil 2 is wound on the second tooth, the insulator 1 includes an interphase insulation section, and the interphase insulation section is arranged between the first coil 2 and the second coil 2, the first coil 2 and the second coil 2 That is to form two adjacent phases. By setting the interphase insulation section, the two adjacent phases in the stator can be completely separated, the creepage distance between the phases can be greatly increased, and the slot fullness can be greatly improved. At the same time, the stator is under high voltage conditions. When in use, it can ensure the full rate of the motor slot, and at the...
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The invention provides an insulation structure and a motor. The insulation structure comprises an insulation part, the insulation part is arranged in a stator, the stator at least comprises a first tooth and a second tooth which are adjacent to each other, a first coil is wound on the first tooth, a second coil is wound on the second tooth, and the insulation part comprises interphase insulation sections. And the interphase insulating section is arranged between the first coil and the second coil. The insulation structure and the motor can increase the inter-phase creepage distance, enhance the electrical safety of the motor, improve the slot fullness rate of a coil and further improve the performance of the motor.
Description
technical field [0001] The application belongs to the technical field of motors, and in particular relates to an insulation structure and a motor. Background technique [0002] In order to improve the performance of the motor and reduce the cost, the existing variable frequency compressors mostly adopt the stator winding method of concentrated winding, and most of the stators are only equipped with a slot insulation structure, and there is no interphase insulation structure, resulting in two phases in the same slot. It is necessary to keep a large distance between them to ensure electrical safety, which leads to a low slot fullness of the stator. As shown in the following formula ①, the copper loss of the motor is inversely proportional to the wire diameter of the winding, and the slot full ratio S∝D, so the lower the slot full ratio of the motor, the smaller the wire diameter D used for the winding, and the greater the copper loss of the motor , according to formula ②, the...
Claims
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Patent Timeline
Login to View More IPC IPC(8): H02K3/32H02K3/34
CPCH02K3/325H02K3/345H02K2213/03Y02T10/64
Inventor 彭子燕卢冠成李尚平龙芳何超燕
Owner ZHUHAI GREE REFRIGERATION TECH CENT OF ENERGY SAVING & ENVIRONMENTAL PROTECTION