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Insulated wire

一种绝缘电线、绝缘膜的技术，应用在绝缘体、绝缘体、有机绝缘子等方向，能够解决绝缘膜恶化、损伤等问题

Active Publication Date: 2011-06-01
PROTERIAL LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When such inverter surge voltage enters the motor equipment, the insulated wires constituting the coil of the motor equipment will be partially discharged due to the inverter surge voltage, and the insulation film will be deteriorated and damaged.

Method used

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Examples

Experimental program
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Effect test

Embodiment 1

[0078] Apply and bake polyamide-imide resin insulating paint A around a conductor with a conductor diameter φ of 0.8 mm to form a first insulating film with a thickness of 5 μm, then apply and bake polyamide-imide resin insulating paint B , and further formed a 35 μm second insulating film, thereby producing an insulated wire including a total of 40 μm insulating film layers.

Embodiment 2

[0080] Apply and bake polyamide-imide resin insulating paint A around a conductor with a conductor diameter φ of 0.8mm to form a first insulating film with a thickness of 10 μm, then apply and bake polyamide-imide resin insulating paint B , and further formed a 30 μm second insulating film, thereby producing an insulated wire including a total of 40 μm insulating film layers.

Embodiment 3

[0082] Apply and bake polyamide-imide resin insulating paint A around a conductor with a conductor diameter φ of 0.8 mm to form a first insulating film with a thickness of 5 μm, then apply and bake polyamide-imide resin insulating paint C , and further formed a 35 μm second insulating film, thereby producing an insulated wire including a total of 40 μm insulating film layers.

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PUM

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Abstract

Provided is an insulated wire, which is one having a high partial discharge inception voltage even if an insulated coating layer disposed on a conductor is only made of an insulated film. The insulated film is formed in the insulated coating layer around the conductor. The insulating film is formed by applying and baking the polyamide-imide resin insulating material having a low dieleltric constant and made of divalent aromatic diamines having three or more aromatic rings.

Description

technical field [0001] The present invention relates to an insulated wire that can be used for coils of electric machines such as rotating electric machines and transformers, and more particularly to an insulated wire having an insulating coating formed of an insulating film formed of a polyamide-imide resin insulating paint. Background technique [0002] In general, coils of electrical equipment such as rotating electrical machines and transformers are widely used around metal conductors (conductors) that have a cross-sectional shape (for example, circular or rectangular) that suits the purpose and shape of the coil, forming 1 layer or 2 layers. Insulated wire (enameled wire) with an insulating coating layer formed by applying and baking polyimide, polyamideimide, polyesterimide and other resins such as polyimide, polyamideimide, polyesterimide, etc. . [0003] Motor equipment such as rotating machines and transformers are driven by inverter control, and such motor equipme...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B7/04H01B17/62H01B3/30C09D179/08
CPCC09D179/08H01B3/305Y10T428/31681Y10T428/31721
Inventor 本田佑树阿部富也菊池英行日野大辅
Owner PROTERIAL LTD
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