Potting technology for motor stator notch

A motor stator and potting technology, which is applied in the manufacture of motor generators, electrical components, electromechanical devices, etc., can solve the problems of stepped shape and easy potting of motor stator slots, so as to ensure stability and improve insulation performance. Effect

Active Publication Date: 2014-07-09
广东中车新能源电机有限公司
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Problems solved by technology

[0005] The purpose of the present invention is to provide a motor stator notch potting process, which can solve the problem that the potting glue of the motor stator notch tends to have a stepped shape after the

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  • Potting technology for motor stator notch
  • Potting technology for motor stator notch
  • Potting technology for motor stator notch

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[0021] In order to make the above objectives, features and advantages of the present invention more obvious and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0022] The "one embodiment" or "embodiment" referred to herein refers to a specific feature, structure, or characteristic that can be included in at least one implementation of the present invention. The appearances of "in one embodiment" in different places in this specification do not all refer to the same embodiment, nor are they separate or selectively mutually exclusive embodiments with other embodiments.

[0023] In order to solve the problem that the potting glue of the stator slot of the motor is prone to have a stepped shape after the stator of the large permanent magnet direct drive wind power generator is potted, the potting process of the stator slot of the motor in the present invention uses NMN polyester film ...

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Abstract

The invention provides a potting technology for a motor stator notch. The potting technology comprises the steps that a motor stator to be potted is provided, wherein the motor stator to be potted comprises a stator iron core and a coil winding which is wound around the stator iron core; an NMN polyester film is used for potting protection on the outer circle of the stator iron core; a well prepared potting sealant is poured inside the potting protection formed by the NMN polyester film so that the end of the coil winding can be potted; the potting sealant is cured. Compared with the prior art, the potting technology for the motor stator notch has the advantages that due to the fact that the NMN polyester film is used for the potting protection of the outer circle of the stator iron core, after the stator of a large-scale permanent magnetic direct-driven wind turbine is potted, the potting sealant is free of an obvious step shape on the surface of the notch; in this way, the insulation performance of the motor can be effectively improved, and the motor operation stability can be well guaranteed.

Description

【Technical field】 [0001] The invention relates to the field of motor stator manufacturing, in particular to a filling and sealing process for stator slots of large-scale permanent magnet direct-drive wind power generators. 【Background technique】 [0002] During the operation of the motor, the stator winding of the motor is loosened due to mechanical vibration and electromagnetic vibration, resulting in inter-turn or inter-wire friction and insulation damage, especially when the motor is working in a harsh environment with a lot of water, oil, and dust. The situation is complicated, and it is easy to cause accidents due to insulation breakdown of the stator winding of the motor. Therefore, it is necessary to perform notch potting work on the production stator to seal the stator notch part. [0003] Among them, the stator of the large permanent magnet direct drive wind power generator needs to carry out notch potting work after insulation treatment and before surface anticorro...

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Application Information

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IPC IPC(8): H02K15/12
Inventor 李甫林王杰杨晔雷林璋李相兵许军杨正
Owner 广东中车新能源电机有限公司
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