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6 kilovolt level high-voltage motor insulation structure and manufacturing method thereof

A technology of insulation structure and high-voltage motor, applied in the shape/style/structure of winding insulation, laying solid insulation, etc., which can solve the problems of large insulation margin and mass production, short product service life and operating life, and low insulation strength of motors, etc. problem, to achieve the effect of good electric strength, insulation thickness thinning and good insulation strength

Inactive Publication Date: 2013-03-20
上海同立电工材料有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, in domestic manufacturers, whether it is the mature application of "medium rubber full immersion VPI" or the "less rubber full immersion VPI" technology that is gradually being promoted, there are many shortcomings: such as the low dielectric strength of the motor insulation, The thickness of the insulation is thicker, the operating temperature of the motor rises, the service life of the product is short, etc.
Therefore, the insulation structure in this document only has a large insulation margin and the possibility of mass production when the insulation thickness is 1.3mm

Method used

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  • 6 kilovolt level high-voltage motor insulation structure and manufacturing method thereof
  • 6 kilovolt level high-voltage motor insulation structure and manufacturing method thereof
  • 6 kilovolt level high-voltage motor insulation structure and manufacturing method thereof

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Embodiment

[0070] Apply the insulation structure of the present invention to make motor coils, use three-layer polyester film mica flat-wrapped copper-clad flat wire as the winding copper flat wire, the cross-sectional size of the copper conductor is 2.2×5.0mm, and the double-sided insulation thickness between turns is 0.40mm. After double-row parallel winding for 10 turns and expansion-type inter-turn gelation, 5 layers of polyester film less rubber powder mica tape with a thickness of 0.09mm are wrapped as the main insulating layer (its insulation thickness is 0.90mm), and then Including low-resistance anti-halation tape and high-resistance anti-halation tape. After vacuum pressure impregnation, baking and curing, the total size of the groove coil is 12.76mm×27.96mm, and the total cross-sectional area of ​​the groove is about 356.8mm 2 , where the total cross-sectional area of ​​the copper conductor is 220mm 2 , the cross-sectional area of ​​the copper conductor accounts for 61.7% of t...

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Abstract

The invention discloses a 6 kilovolt level high-voltage motor insulation structure and a manufacturing method of the insulation structure. The insulation structure comprises an electromagnetic coil provided with a guide line insulating layer, and a main insulating layer manufactured on the electromagnetic coil in a winding mode. Epoxy acid anhydride type impregnating resin condensates are arranged in a gap between the guide line insulating layer on the electromagnetic coil and the main insulating layer. The 6 kilovolt level high-voltage motor insulation structure and the manufacturing method of the insulation structure have the advantages that insulating strength of the guide line insulating layer and the main insulating layer are both greatly promoted, but insulating thickness of the guide line insulating layer and the main insulating layer are obviously thinned.

Description

technical field [0001] The invention relates to the field of high-voltage motor insulation manufacturing of F-class thinned insulation with a rated voltage of 6kV (including rated voltages of 6.0kV, 6.3kV, and 6.6kV), in particular to a 6kV class (including rated voltages of 6.0kV, 6.3 kV, 6.6kV) and the insulation structure used in the thinned insulation high-voltage motor and the manufacturing method of this insulation structure. Background technique [0002] Although the motor has a history of more than 100 years, the working principle and basic structure have not changed significantly. The progress and development of manufacturing technology are mainly reflected in the two aspects of cooling system and insulation technology. One of the main factors affecting the operating life of the motor is Motor insulation, it is no exaggeration to say that insulation is the "heart" of the motor. [0003] In the current manufacturing field of Class F medium-sized high-voltage motor i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K3/34H02K15/10
Inventor 李雪倪永庆白双建
Owner 上海同立电工材料有限公司
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