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An arc extinguishing chamber and a circuit breaker using the same

A technology of arc extinguishing chamber and conductive rod, which is applied in the direction of high-voltage air circuit breakers, circuits, contacts, etc., can solve the problems of limited opening and closing speed, and achieve the goal of increasing opening and closing speed, reducing weight, and good closing performance Effect

Active Publication Date: 2018-06-26
TIANJIN PINGGAO INTELLIGENT ELECTRIC +2
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide an arc extinguishing chamber to solve the problem of limited opening and closing speed due to the large number of moving parts in the prior art; the purpose of the present invention is also to provide a circuit breaker using the arc extinguishing chamber

Method used

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  • An arc extinguishing chamber and a circuit breaker using the same
  • An arc extinguishing chamber and a circuit breaker using the same

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Embodiment Construction

[0020] An example of a circuit breaker is Figure 1~Figure 2 As shown, it includes an arc extinguishing chamber and a repulsion mechanism (not shown in the figure), and the arc extinguishing chamber includes a housing 13, and the housing 13 is provided with a first contact 10 and a second contact 9 along the upper and lower sides, and the second contact 9 The lower end is connected with the conductive rod 8 at the movable end, and the repulsion mechanism is directly connected with the conductive rod 8 at the movable end. A bellows 7 is arranged on the periphery of the moving end conductive rod 8, one end of the bellows 7 is connected to the moving end conductive rod 8, and the other end is connected to the cover plate 14 at the lower end of the arc extinguishing chamber.

[0021] The upper end of the first contact 10 is provided with a conductive rod 6 , the upper end of the conductive rod 6 is provided with a guide rod 3 , and a spring 4 is sheathed outside the guide rod 3 , ...

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Abstract

The invention provides an arc extinguish chamber and a circuit breaker employing the same. The circuit breaker comprises the arc extinguish chamber and an operating mechanism, wherein the arc extinguish chamber comprises a first contact and a second contact; the second contact is provided with a moving end conducting rod; the operating mechanism is in direct transmission connection with the moving end conducting rod; and the first contact is a floating contact arranged through an elastic part. The arc extinguish chamber and the circuit breaker have the beneficial effects that the operating mechanism is in direct transmission connection with the moving end conducting rod, so that an insulated pull rod can be omitted; the weight of a moving component is reduced; and improvement of the breaking-closing speed is facilitated. The first contact is the floating contact, so that the second contact can push the first contact to further move a distance after being closed; certain bonding pressure can be kept between the two contacts after the elastic part is compressed; good closing performance is ensured; the influence on the closing performance since an overrun spring cannot be arranged after the insulated pull rod is directly removed is avoided; meanwhile, the second contact can obtain breaking initial kinetic energy through the elastic part; and the breaking speed is improved.

Description

technical field [0001] The invention relates to an arc extinguishing chamber and a circuit breaker using the arc extinguishing chamber. Background technique [0002] Vacuum circuit breaker is named for its arc extinguishing medium and the insulating medium of the contact gap after arc extinguishing are high vacuum. It has the advantages of small size, light weight, suitable for frequent operation, and no maintenance for arc extinguishing. It is used in distribution network The application is more popular. The authorized announcement number is CN201788887U, and the authorized announcement date is 2011.04.06. The Chinese utility model patent discloses a vacuum circuit breaker, including an insulating sleeve, and a vacuum interrupter, an insulating pull rod, and an operating mechanism are arranged up and down in the middle of the insulating sleeve. , the vacuum interrupter is equipped with a moving contact and a static contact, that is, the first contact and the second contact...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01H33/664H01H33/666H01H1/50
CPCH01H1/502H01H33/664H01H33/666H01H2033/6648
Inventor 李敏
Owner TIANJIN PINGGAO INTELLIGENT ELECTRIC
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