Assurance method of insulation distance of high-voltage coil

An insulation distance, high-voltage coil technology, applied in coil manufacturing, transformer/inductor coil/winding/connection, transformer/inductor components, etc. Problems such as the increase of breakdown phenomenon, to achieve the effect of easy operation, increase reliability and service life, and reduce arcing and breakdown phenomenon

Pending Publication Date: 2018-03-16
TIANJIN HUIGAO MAGNETICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the disadvantages of this process are: complex structure, complex operation, high requirements for production personnel, the processing method of winding cross-layer needs to be strictly in accordance with the process drawings, and it is difficult to proc

Method used

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  • Assurance method of insulation distance of high-voltage coil
  • Assurance method of insulation distance of high-voltage coil
  • Assurance method of insulation distance of high-voltage coil

Examples

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Example Embodiment

[0038] Such as figure 1 , Figure 13 As shown, a method for ensuring the insulation distance of a high-voltage coil includes a frame 1, an insulating film 2, an enameled wire 3, a sleeve, a copper sheet 4, and a lead 5.

[0039] The skeleton 1 is a rectangular hollow structure with a square cross-section.

[0040] The insulating film 2 is composed of two layers of Nomi paper 2-1 with a high temperature resistant polyester film 2-2 in the middle.

[0041] The steps are as follows:

[0042] The first step, around the first layer of line such as figure 2 As shown, a first layer of insulating film 2 is covered at the center of the upper and lower ends of one surface of the frame 1, and a first layer of polyurethane enameled wire 3 is wound around the center of the upper and lower ends of the first layer of insulating film 2. The first layer starts at the end I3- 1 and the tail end I3-11 protrude from the upper and lower ends of the frame 1 along the axis of the frame 1, between the same...

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Abstract

The invention relates to an assurance method of an insulation distance of a high-voltage coil. The high-voltage coil comprises a framework, insulating films, an enameled wire, a copper skin and a leadwire, wherein the framework is of a rectangular hollow structure and the section of the framework is a square; each of the insulating films is formed by arranging a high-temperature polyester thin film between two layers of nomax paper. All windings are wound at the center and all the insulating films are fixed at the center; the widths of the insulating films are reduced in sequence so that a leading-out wire reaches the maximum insulation distance; finally, the copper skin is used for covering for one circle and the insulating films are fixed. By adopting the assurance method, the phenomenathat arc discharge and breakdown caused by the fact that a creepage distance between original windings or leading-out wires is not enough are improved. By adopting the improvement, an original winding method or an insulating material with the same width is changed into grouped winding and an insulating material which is gradually reduced, so that the creepage distance of the leading-out wires ofthe windings is increased by at least 3mm, and the reliability of a product can be effectively increased and the service life of the product can be effectively prolonged.

Description

technical field [0001] The invention relates to a method for ensuring the insulation distance of a high-voltage coil, which is used for a high-voltage coil of a high-voltage power supply of a medical X-ray machine. Background technique [0002] With the development of modern power electronics technology and the birth of high-frequency switching devices, high-voltage switching power supplies are developing towards high frequency and miniaturization. Therefore, the high-voltage coil in the high-voltage transformer needs to pursue a smaller volume, and it is more important to ensure the corresponding electrical clearance. At present, the manufacturing process of high-voltage coils is generally an uninterrupted layered winding of a polyurethane enameled wire: [0003] First, the Z-shaped winding structure is adopted, and the insulation material of the same width is used between the layers, and the output is a set of high-voltage windings. The advantage of this is that there ...

Claims

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Application Information

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IPC IPC(8): H01F27/32H01F41/12
CPCH01F27/323H01F41/122
Inventor 王维苓刘春来郑海华
Owner TIANJIN HUIGAO MAGNETICS
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