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Motor stator core potting process

A motor stator and process technology, applied in the field of motor stator iron core potting process, can solve the problems of long time, low efficiency, leakage, etc., and achieve the effects of convenient operation, improved mechanical performance, and energy saving

Inactive Publication Date: 2011-12-14
NANJING GAOQI ELECTRIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Most of the plastic seals are dipped or die-casted. Generally, it takes 24 hours for the dipped paint to seal, which is a long time and low in efficiency. However, the die-cast plastic seal may cause leakage due to poor die-casting.

Method used

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  • Motor stator core potting process
  • Motor stator core potting process
  • Motor stator core potting process

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Experimental program
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Effect test

Embodiment Construction

[0019] Below in conjunction with accompanying drawing, the present invention is described in further detail:

[0020] Such as Figure 1-2 Shown: 1 is the base of the lower mold, 2 is the lower template, 3 is the casing, 4 is the stator core, 5 is the upper template, 6 is the injection port, 7 is the runner, 8 is the positioning hole, 9 is the outlet .

[0021] The potting material is composed of epoxy resin, diluent, toughening agent, silicon micropowder, curing agent and other materials, and its weight ratio is: epoxy resin 60%~69% diluent 2%~10% toughening agent 5%~ 10% silicon powder 10% ~ 14% curing agent 10% ~ 14%, the specific preparation process is: inhale the raw materials into the storage tank of the two-component potting and sealing machine according to the proportion, stir evenly and degas, the tank is low vacuum tank, this process is vacuum defoaming while stirring, the stirring speed of the stirrer is 1500rpm, and the stirring time is 3 minutes. When the mixtur...

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Abstract

The invention provides a filling and sealing process of a motor stator core. The filling and sealing process comprises the following steps of: (1) preparing a filling and sealing material; (2) arranging an upper die filling and sealing die and a lower die filling and sealing die on a motor stator and positioning; (3) injecting the prepared filling and sealing material from an upper die plate; and (4) curing at 75-85 DEG C for 20-40 percent. The filling and sealing material is prepared from the following raw materials, such as epoxy resin, a diluting agent, a curing agent, a flexibilizer, silicon micropowder, and the like according to certain proportions. Compared with the prior art, the invention has the advantages that the filling and sealing time is greatly shortened, the operation is convenient, the filing and sealing efficiency of a motor is effectively improved, and energy consumption is saved; the stator has high surface finish quality and good insulation and waterproofing property; meanwhile, the mechanical property of the motor is improved, and the running stability of the motor is better ensured.

Description

technical field [0001] The invention relates to the field of motor manufacturing, in particular to a potting process for a stator iron core of a motor. Background technique [0002] During the operation of the motor, the stator windings of the motor are loosened due to mechanical vibration and electromagnetic vibration, resulting in inter-turn or inter-wire friction and damage, especially when the motor is working in a harsh environment with more water, more oil and more dust. The load condition is complicated, and it is easy to cause accidents due to insulation breakdown of the motor stator winding. Most of the traditional motors are integral stators, and the wires are wound on the integral stator core, and then plastic-encapsulated. Most of the plastic seals are dipped or die-casted. The dip-painted plastic seal generally takes 24 hours, which is a long time and low in efficiency, while the die-cast plastic seal may cause leakage due to poor die-casting. Due to its compl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K15/02
Inventor 马健伟孔昭松
Owner NANJING GAOQI ELECTRIC
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