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Coil structure suitable for dry-type transformer

A technology of low-voltage coils and high-voltage coils, which is applied in the direction of transformer/inductor coil/winding/connection, transformer/inductor parts, transformer/inductor cooling, etc., which can solve the problems of poor support effect of high-voltage coils and achieve high assembly efficiency , to ensure the effect of heat dissipation

Pending Publication Date: 2022-01-07
GUANGDONG POWER GRID CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of this, the purpose of this application is to provide a coil structure suitable for dry-type transformers, which is used to solve the technical problem that the high-voltage coils of existing dry-type transformers have poor support effects

Method used

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  • Coil structure suitable for dry-type transformer
  • Coil structure suitable for dry-type transformer

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Embodiment Construction

[0033] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.

[0034] In the description of the embodiments of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer " and other indicated orientations or positional relationships are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the embodiments of the present application and simplifying the descri...

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Abstract

The invention belongs to the technical field of transformer coils, and relates to a coil structure suitable for a dry-type transformer. The coil structure comprises a low-voltage coil, a high-voltage coil, a support inner sleeve and a support outer sleeve; the periphery of the low-voltage coil is coated with the high-voltage coil; the support inner sleeve and the support outer sleeve are arranged between the outer peripheral wall of the low-voltage coil and the inner peripheral wall of the high-voltage coil; the support inner sleeve is arranged on the peripheral wall of the low-voltage coil in a sleeving mode; the support outer sleeve is attached to the inner circumferential wall of the high-voltage coil; a gap channel is formed between the support inner sleeve and the support outer sleeve; and the outer peripheral wall of the support inner sleeve is connected with the inner peripheral wall of the support outer sleeve through a plurality of supporting bridges. According to the coil structure suitable for the dry-type transformer, the support inner sleeve and the support outer sleeve are used for carrying out auxiliary supporting on the low-voltage coil and the high-voltage coil respectively, and the supporting bridges are adopted, so that winding and assembling of the low-voltage coil and the high-voltage coil are conveniently achieved; and a heat dissipation channel is formed through the gap channel between the support inner sleeve and the support outer sleeve, so that the heat dissipation effect is guaranteed.

Description

technical field [0001] The present application relates to the technical field of transformer coils, in particular to a coil structure suitable for dry-type transformers. Background technique [0002] Dry-type transformers include iron cores, low-voltage coils, high-voltage coils and other components, which will generate a lot of heat during work and use, and have certain requirements for heat dissipation efficiency, especially for high-power transformers. If the temperature is not dissipated in time, it will easily cause local If the temperature is too high, it will cause damage or aging of the insulating medium and affect the service life. [0003] Secondly, in the existing dry-type transformer, a support bar is provided between the low-voltage coil and the high-voltage coil for simple separation, which has limited support for the high-voltage coil and is not conducive to the winding of the high-voltage coil. Contents of the invention [0004] In view of this, the purpos...

Claims

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Application Information

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IPC IPC(8): H01F27/30H01F27/08
CPCH01F27/306H01F27/2876
Inventor 江霖陈建福汪进锋常雯雪金杨黄杨珏李爱平陈卓航
Owner GUANGDONG POWER GRID CO LTD
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