Contact with strong connecting-disconnecting function

A technology of contact and capacity, which is applied in the direction of electric switches, contact materials, high-voltage air circuit breakers, etc., can solve the problem of unsatisfactory electrical indicators such as cut-off value, voltage shock resistance, and breaking times, shortening the life of vacuum interrupters, and affecting Contact life and other issues to achieve the effect of improving welding resistance and breaking capacity, reducing current density and prolonging service life

Inactive Publication Date: 2010-11-17
吴学栋
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, there are still some deficiencies in the contacts of the vacuum interrupter. The disadvantages are: due to the defects in structure and chemical composition, under high-voltage working conditions, there is a disadvantage of too fast welding, because the contacts stick together, It is easy to cause a short circuit. These shortcomings not only affect the life of the contacts, but also shorten the life of the vacuum interrupter at the same time. Because of its large amount, it will cause large economic losses.
In addition, it is not ideal in terms of electrical indicators such as cut-off value, voltage shock resistance, and number of breaking times.

Method used

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  • Contact with strong connecting-disconnecting function
  • Contact with strong connecting-disconnecting function
  • Contact with strong connecting-disconnecting function

Examples

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Embodiment Construction

[0024] Below in conjunction with accompanying drawing and embodiment the present invention is further described, wherein:

[0025] in the attached figure 1 In the first embodiment shown, the series of circular holes are uniform radial holes. It can be seen from the accompanying drawing that the series of circular holes are equal in size and uniformly distributed radially. The radial holes shown in the accompanying drawing are divided into six rows, each row of three circular holes, They are equal in size and distributed radially. Of course, the number of rows can be more or less; the number of holes in each row can also be appropriately changed; it can be changed reasonably according to design requirements.

[0026] in the attached figure 2 In the second embodiment shown, the series of circular holes are tapered radial holes. It can be seen from the accompanying drawing that the sizes of the series of circular holes are not equal, and although they are also uniformly dist...

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Abstract

This invention is a kind of contact-head with strong disconnecting ability. The features are: there are a series of circular orifices on the contact-head. The chemical components of the said contact-head include Cr, Cu, ferromagnetic elements, P, S. The said circular orifices are even and gradual-changing radial orifices. They are even and gradual-changing off-centering orifices. They are also even and gradual-changing helix orifices. The said ferromagnetic elements are Fe or Co or Ni. The invention can increase disconnecting ability and enlarge useful life of the contact-head because of the circle orifices on the contact-head and their scientific compositions. It can also increase working efficiency and reduce production cost.

Description

technical field [0001] The present invention relates to a component in an electronic device, especially a contact of a vacuum interrupter, more specifically, the present invention is a contact with strong breaking capacity, which is listed in the International Patent Classification Inventions are classified under H01. Background technique [0002] At present, there are still some deficiencies in the contacts of the vacuum interrupter. The disadvantages are: due to the defects in structure and chemical composition, under high-voltage working conditions, there is a disadvantage of too fast welding, because the contacts stick together, It is easy to cause a short circuit. These shortcomings not only affect the life of the contacts, but also shorten the life of the vacuum interrupter at the same time. Because of its large amount, it will cause large economic losses. In addition, it is not ideal in terms of electrical indicators such as cut-off value, voltage shock resistance, a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01H1/06H01H1/02H01H33/664
Inventor 吴学栋陶丙戍刘志远
Owner 吴学栋
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