Fixing method for phase insulation of motor winding ends for refrigeration compressors

A technology of refrigeration compressor and fixing method, which is applied in laying solid insulation and other directions, can solve the problems of insufficient delivery of phase insulation, slippage or displacement, motor burnout, etc., and achieves the effects of convenient operation, realization of fixing, and simple method.

Active Publication Date: 2015-08-19
SUZHOU BETTER TECH
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AI Technical Summary

Problems solved by technology

In this case, it is easy for the motor to fail to deliver the phase insulation in place during the production process, or to slip or displace in the later processing after it is delivered in place during the production process.
In this way, when the compressor is running, due to mechanical vibration and other reasons, the insulation breakdown of the weak insulation may cause the motor to burn out.

Method used

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  • Fixing method for phase insulation of motor winding ends for refrigeration compressors

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Embodiment Construction

[0014] The technical scheme of the present invention will be further explained below in conjunction with the drawings.

[0015] See figure 1 As shown, a method for fixing the phase insulation of the winding ends of a motor for a refrigeration compressor, the fixing method mainly includes the following steps:

[0016] First, insert the phase insulation 3 between the phases of the winding 2 and insert it into the root of the winding 2, and then wind the binding tape 4 with good insulation performance around the root of the winding 2 along its outer circumference several times. And press the phase insulation 3 under the binding band 4. The binding tape 4 can be one or more of polyester fiber tape, electrical non-alkali glass fiber tape or polyester non-woven fabric tape. In order to prevent the phase insulation 3 from slipping or displacement due to mechanical vibration and other reasons after the binding tape 4 is tied, the phase insulation 3 is pulled out a certain length to th...

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Abstract

The invention discloses a fixing method for motor winding end phase insulation pieces for a refrigeration compressor. A lashing band with good insulating performance is used for lashing phase insulation pieces on the winding end portion, wherein the phase insulation pieces are inserted into a winding and arranged between phrases; the phase insulation pieces are fixed between the phases of the winding and can not slip or shift easily; and therefore a motor can work in the refrigeration compressor safely, stably and reliably. The fixing method for the motor winding end phase insulation pieces for a refrigeration compressor is simple, convenient to operate, and good in practicality, and fixing of the phase insulation pieces of the motor winding is effectively achieved.

Description

technical field [0001] The invention relates to a fixing method for phase insulation of motor winding ends for refrigeration compressors. Background technique [0002] Relatively speaking, there is a high voltage between the phases of the three-phase asynchronous motor, especially in abnormal conditions such as lightning, instantaneous voltage, startup or shutdown, etc., which may cause a voltage between the phases of the motor A phase-to-phase short circuit occurs and the motor burns out. In order to ensure the normal and reliable operation of the motor and prevent short circuits between phases, a layer of interphase insulation material is generally added between the three phases of the motor winding to achieve phase insulation of the motor. [0003] The motors used in hermetic refrigeration compressors are quite different from ordinary standard motors (such as Y series three-phase asynchronous motors) in terms of working environment and structure. The upper end is much ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02K15/10
Inventor 何金桃蔡泽农何亚玲欧阳当时庄治民许三星
Owner SUZHOU BETTER TECH
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