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Double-knife high voltage isolating switch

A high-voltage isolation switch, knife technology, applied in the direction of air switch parts, electrical components, etc., can solve the problems of virtual connection or open circuit, poor, unstable isolation effect, etc., to avoid virtual connection.

Inactive Publication Date: 2016-11-09
朱伯秦
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The isolating switch is a switch that can carry the current under normal circuit conditions and the current under abnormal conditions within a specified time when the disconnector is in the off position. The common one is a single-knife isolating switch. The single-knife isolating switch is extremely easy to cause virtual connection or disconnection of the line.

Method used

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  • Double-knife high voltage isolating switch
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  • Double-knife high voltage isolating switch

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no. 1 example

[0018] see figure 1 and image 3 , this patent provides the first embodiment: a double-knife high-voltage isolating switch, including a card holder 1, and an insulator 2 is symmetrically installed on both sides of the top of the card holder 1, and a contact holder 3 is fixedly installed on the top of the insulator 2 , the contact seat 3 is provided with a locking plate 4, at least a pair of conductor contacts are installed on the contact seat 3, a shaft 5 is inserted through the middle of the upper surface of the card seat 1, and the shaft 5 A knife driving device 6 is installed on the side wall of the shaft 5, and a rotating shaft 7 is inserted in the middle of the shaft 5, and the end of the rotating shaft 7 inserted in the inner cavity of the card holder 1 is sleeved with a bevel tooth disc 8, and the bevel tooth disc 8 Intermesh with one end of the drive shaft 9 installed in the inner cavity of the card holder 1, and the other end of the drive shaft 9 extends to the outsi...

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Abstract

The invention discloses a double-knife high voltage isolating switch which comprises a holder. Insulators are symmetrically installed at both sides of the top of the holder, and contactor seats are fixedly installed on the top of the insulators. Latching plates are arranged on the contact seats. A shaft rod passes through and is installed in the middle of an upper surface of the holder, and a knife driving device is installed on a side wall of the shaft rod. The latching plates are connected or disconnected by using two S-shaped knives and two -shaped knives, and the current conduction can be effectively and stably controlled. Rotational directions of the S-shaped knives are made different through mutual cooperation of a driven fluted disc, a driving fluted disc, and a bevel gear shaft. It is convenient to use the isolating switch. The -shaped knives are in butt joint with matched contact blocks by using a rolling disc and an eccentric motion principle, and a virtual connection phenomenon when a single knife switch is used can be effectively prevented. Contact pins can be effectively prevented from falling off from pin holes by installing spacer pins in the pin holes.

Description

technical field [0001] The invention relates to the technical field of high-voltage equipment, in particular to a double-knife high-voltage isolating switch. Background technique [0002] The isolating switch is a switch that can carry the current under normal circuit conditions and the current under abnormal conditions within a specified time when the disconnector is in the off position. The common one is a single-knife isolating switch. The single-knife isolating switch is extremely easy to cause a virtual connection or disconnection of the line. Contents of the invention [0003] The purpose of the present invention is to provide a double-knife high-voltage isolating switch to solve the problems raised in the above-mentioned background technology. [0004] In order to achieve the above object, the present invention provides the following technical solutions: a double-knife high-voltage isolating switch, including a card holder, insulators are symmetrically installed on...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01H31/10H01H21/54
CPCH01H31/10H01H21/54
Inventor 朱伯秦
Owner 朱伯秦
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