Circuit breaker lower contact connection structure and circuit breaker

A contact connection and circuit breaker technology, which is applied in the electrical field, can solve the problems of small effective conductive area and difficult control of circuit breaker temperature rise, and achieve the effect of large conductive area, good temperature rise, and improved performance

Active Publication Date: 2014-11-19
BEIJING HUADIAN RUITONG POWER ENG TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The purpose of the present invention is to provide a circuit breaker lower contact connection structure and a circuit breaker to solve the problems of t

Method used

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  • Circuit breaker lower contact connection structure and circuit breaker
  • Circuit breaker lower contact connection structure and circuit breaker
  • Circuit breaker lower contact connection structure and circuit breaker

Examples

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Example Embodiment

[0017] The specific implementation of the present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments. The following examples are used to illustrate the present invention, but not to limit the scope of the present invention.

[0018] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", " The orientation or positional relationship indicated by “outside” is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation to The specific azimuth structure and operation cannot be understood as a limitation of the present invention. In addition, the terms "first" and "second" are only used for des...

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Abstract

The invention relates to the technical field of electrics, and particularly relates to a circuit breaker lower contact connection structure and a circuit breaker. The circuit breaker lower contact connection structure comprises a vacuum bubble, a lower fixed contact, a mounting frame plate and a fixing component, wherein a static end shaft at the lower end of the vacuum bubble penetrates through the mounting frame plate and is fixed to the mounting frame plate through the fixing component, the horizontal part of the lower fixed contact is arranged below the vacuum bubble and fitted with the bottom surface of the vacuum bubble, and the horizontal part of the lower fixed contact is fixed on the bottom surface of the vacuum bubble through a tightening nut; therefore, a relatively large conductive area between the vacuum bubble and the lower fixed contact is formed, the temperature rise of the circuit breaker can be controlled excellently, and the performance of the circuit breaker can be improved effectively.

Description

technical field [0001] The invention relates to the field of electrical technology, in particular to a circuit breaker lower contact connection structure and a circuit breaker. Background technique [0002] At present, in the field of power system distribution network, the lower static contact of the circuit breaker is connected by thread conduction. Specifically, the shaft of the static end of the lower end of the vacuum bubble passes through the mounting frame plate and the contact pressure plate in turn, and then is tightened and fixed by nuts. The static end shaft at the lower end and the connecting piece at the upper part of the lower static contact realize the conduction of the circuit breaker. However, such an effective conductive area is small, and it is difficult to control the temperature rise of the circuit breaker within an effective range. [0003] Therefore, aiming at the above deficiencies, the present invention provides a circuit breaker lower contact conne...

Claims

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Application Information

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IPC IPC(8): H01H33/664
Inventor 赵华
Owner BEIJING HUADIAN RUITONG POWER ENG TECH
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