200-level impulse-voltage-resistant composite enameled wire and production method

A production method and anti-pulse technology, used in circuits, insulated cables, electrical components, etc., can solve problems such as shortening motor life and motor insulation problems, and achieve improved service life, good corona resistance, and improved chemical properties. Effect

Inactive Publication Date: 2014-08-13
ZHEJIANG GREATWALL ELECTRIC SCI & TECH
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  • Claims
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Problems solved by technology

[0004] Many conventional frequency converters often have only one layer of insulating varnish. The instantaneous pulse wave caused by it will cause problems with the insulation of the motor, and the resonant pulse wave will also appear on the wiring between the motor and the frequency converter at any time, which is commonly referred to as corona. Discharge or partial discharge effects occur, partial discharges start by degrading the insulation of the winding wires, which over time can shorten the life of the motor

Method used

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  • 200-level impulse-voltage-resistant composite enameled wire and production method

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Embodiment Construction

[0013] The present invention will be further described below in conjunction with the accompanying drawings and embodiments, but not as a basis for limiting the present invention.

[0014] Example. Class 200 anti-pulse voltage composite enameled wire, composed of figure 1 As shown, it includes a copper round wire 2, and the surface of the copper round wire 2 is sequentially provided with a frequency conversion paint layer 3 and a polyamideimide paint layer 1 from the inside to the outside, and the frequency conversion paint layer 3 includes 8 polyamide-imide paint layers Esterimide paint layer, the thickness of each polyesterimide paint layer is 0.005mm.

[0015] Preferably, the polyesterimide paint is Dupont polyesterimide paint.

[0016] The diameter of the copper round wire 2 is 1.240-1.255mm, and the minimum thickness of the insulating varnish layer formed by compounding the frequency conversion varnish layer 3 and the polyamide-imide varnish layer 1 is 0.067mm.

[0017]...

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Abstract

The invention discloses a 200-level impulse-voltage-resistant composite enameled wire and a production method. The 200-level impulse-voltage-resistant composite enameled wire structurally comprises a round copper wire (2). A frequency conversion paint coat (3) and a polyamide imide paintcoat (1) are sequentially arranged on the surface of the round copper wire (2) from inside to outside, the frequency conversion paint coat (3) comprises eight polyester imide paintcoats, and the thickness of each polyester imide paintcoat is 0.005mm. The 200-level impulse-voltage-resistant composite enameled wire has good corona-resistant performance and prolongs the service life of a variable frequency motor.

Description

technical field [0001] The invention relates to an enamelled round copper wire and a production method thereof, in particular to a 200-class anti-pulse voltage composite enameled wire and a production method thereof. Background technique [0002] As various household appliances such as air conditioners and refrigerators enter thousands of households, the word "frequency conversion" has become a household name. The most attractive feature of "frequency conversion" is to save electric energy. At the same time, the national "energy saving and emission reduction" policy has brought new development opportunities and new challenges to the energy-saving motor industry. [0003] Applying frequency conversion speed regulation technology, the motor has the characteristics of constant torque and constant dynamic rate speed regulation, which can realize controllable start, stop and brake. The system has simple structure, less investment, small size and strong function. And it can save 3...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B7/02H01B13/06
Inventor 顾林祥姚桂华徐永华嵇凤祥李回劲茅新良
Owner ZHEJIANG GREATWALL ELECTRIC SCI & TECH
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