Special oven used for manufacturing cured epoxy resin dry type transformer coil and manufacturing method thereof

A technology for curing epoxy resin and dry-type transformers, applied in the direction of coil manufacturing, furnace, furnace type, etc., can solve the problems that the coil quality is greatly affected, the coil surface quality is affected, and the partial discharge exceeds the standard, so as to shorten the curing time, speed up the The effect of curing reaction speed and high production efficiency

Active Publication Date: 2009-12-09
顺特电气设备有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These shrinkage holes will affect the surface quality of the coil if it is light, and it will cause the partial discharge to exceed the standard, which has a great impact on the quality of the coil.

Method used

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  • Special oven used for manufacturing cured epoxy resin dry type transformer coil and manufacturing method thereof
  • Special oven used for manufacturing cured epoxy resin dry type transformer coil and manufacturing method thereof

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Embodiment Construction

[0020] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0021] see Figure 1-Figure 2 , this is a special oven for making coils of cured epoxy resin dry-type transformers. The top of the special oven is provided with an exhaust air outlet 1 and an air inlet 2. The exhaust air outlet 1 communicates with the inner cavity of the special oven. An air duct 3 is respectively arranged on the left and right side walls, the air inlet 2 communicates with one end of the air duct 3, an electric heater 4 is arranged in the air duct 3, and the middle and lower part of the air duct 3 is provided with an opening communicating with the inner cavity, and the opening Two-way blinds 5 are arranged on it. The bottom of the special oven is provided with a base plate 7, the base plate and the bottom of the special oven together form a lower chamber, the lower chamber communicates with the other end of the air duct 3, the base pla...

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PUM

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Abstract

The invention provides a special oven used for manufacturing cured epoxy resin dry type transformer coil and a manufacturing method thereof. The top part of the special oven is provided with an exhaust air outlet and an air inlet, wherein, the exhaust air outlet is communicated with an inner chamber of the special oven and the side wall of the special oven is internally provided with an air channel; the air inlet is communicated with one end of the air channel; the air channel is internally provided with an electric heater; the middle lower part of the air channel is provided with an opening which is communicated with the inner chamber; bidirectional shutters are arranged on the opening; the bottom part of the special oven is provided with a base plate; the base plate and the bottom part of the special oven together enclose a lower chamber; the lower chamber is communicated with the other end of the air channel; the base plate is provided with an upturned air-out hole which is communicated with the inner chamber; a pouring mould is arranged on the base plate; the bottom part of the pouring mould is provided with a temperature sensor; a cavity is internally provided with a trolley; the pouring mould and the temperature sensor are arranged on the trolley. The invention is characterized by simple and reasonable structure, easy operation, good cure quality and high production efficiency.

Description

technical field [0001] The invention relates to a special oven for manufacturing coils of cured epoxy resin dry-type transformers and a manufacturing method thereof. Background technique [0002] Chinese Patent Document No. CN 1060580C discloses a flame-retardant epoxy resin thousand-type transformer, including an iron core, high and low voltage windings, castables, pull plates, high-voltage upper splints, high-voltage lower splints, lifting rings and pins, high-voltage windings, low-voltage The magnet wire of the winding is fixed in the casting material composed of flame-retardant bisphenol-type shrinkable epoxy resin, flame-retardant phenolic-type shrinkable epoxy resin, curing agent methyl tetrahydrophthalic anhydride and methyl hexahydrophthalic anhydride, and the high voltage The splint and the high-voltage lower splint fix the high and low-voltage windings and the pull plate on the iron core together. The oven of this kind of flame-retardant epoxy resin thousand-type ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01F41/04F27B17/00
Inventor 刘四维王晓锋易吉良区富祥
Owner 顺特电气设备有限公司
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