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Wire type magnetic slot-wedge preparation process

A technology of magnetic slot wedge and preparation process, which is applied in the direction of manufacturing motor generators, electrical components, electromechanical devices, etc.

Inactive Publication Date: 2006-09-06
上海电气集团上海电机厂有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the magnetic slot wedge is bonded by iron wire, glass cloth, and adhesive, and the existing magnetic slot wedge generally has a problem of bonding strength among the three.

Method used

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  • Wire type magnetic slot-wedge preparation process
  • Wire type magnetic slot-wedge preparation process

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Embodiment 1 The magnetic slot wedge preparation process of the present invention is sequentially divided into two steps: the preparation of the magnetic slot wedge adhesive and the forming of the iron wire type magnetic slot wedge.

[0019] The preparation process of magnetic slot wedge adhesive is as follows:

[0020] 1) Add 100 parts of epoxy resin, 8 parts of toughening agent and 2 parts of release agent zinc stearate into the stirring axe, heat the above materials to 50°C, and continue stirring for 30 minutes to process into component A.

[0021] 2) Take 100 parts of component A, then add 40 parts of curing agent pyromellitic dianhydride to component A, stir manually for 10 minutes, and finely grind the stirred material three times on a three-roller machine.

[0022] The forming process of the wire type magnetic slot wedge is as follows (see the structure of the slot wedge forming machine figure 1 ):

[0023] 1) After the galvanized iron wire is annealed, the sur...

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PUM

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Abstract

The present invention discloses a high cohesive strength, high efficiency, low temperature rise, small iron loss and capable of continuously mechanical productive wire type magnetic wedge manufacturing method, which contains magnetic wedge adhesive preparation and wire type magnetic wedge moulding two steps. The present invention mainly solves wire, glass fabric cementing with adhesive problem, through using varnished cloth compound wire and glass fabric to replace the wire, raising cohesive strength, and solving problem s of iron loss and teeth pulsation loss increment, motor temperature rise raising, descent efficiency, electromagnetism noises increasing and poor starting performance.

Description

technical field [0001] The invention relates to a manufacturing method of a magnetic slot wedge, in particular to a manufacturing method of an iron wire type magnetic slot wedge. Background technique [0002] With the development of the motor industry, the voltage is gradually increased, the volume is gradually reduced, and the requirements for insulating materials are getting higher and higher. Due to the existence of cogging, the air-gap permeance of AC motors is uneven, causing permeance harmonics. Especially for high-voltage motors, the open slot structure must be used, which leads to the increase of the amplitude of the air-gap guide tooth harmonics, which makes the rotor surface iron loss and The loss of tooth pulse vibration increases, the temperature rise of the motor increases, the efficiency decreases, the electromagnetic noise increases, and the starting performance deteriorates. [0003] The stator slot uses a magnetic slot wedge instead of the traditional 3240 ...

Claims

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Application Information

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IPC IPC(8): H02K15/00H02K3/493
Inventor 田建辉陆芸
Owner 上海电气集团上海电机厂有限公司
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