Switching device with lever ratio

A switch device and lever ratio technology, applied to relay parts, relays, electrical components, etc., can solve the problems of complex structure, high cost, and large energy consumption of contactors, and achieve easy installation, low cost, and simple structure Effect

Inactive Publication Date: 2012-04-25
SHANGHAI NOARK ELECTRIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention solves the problems of high energy consumption, complex structure and high cost in existing contactors, and provides a switch device with a lever ratio with low cost, simple structure and strong breaking capacity

Method used

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  • Switching device with lever ratio
  • Switching device with lever ratio
  • Switching device with lever ratio

Examples

Experimental program
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Effect test

Embodiment Construction

[0018] Refer to attached figure 1 , figure 2 , a switch device with a leverage ratio, including a housing 7, a rocker arm 1, a rotating shaft 6, a contact support 2, a moving contact bridge 4, and a static contact 5, and the rocker arm 1 is rotatably mounted on the rotating shaft 6 , one end of the rocker arm 1 is the active end 11, and the other end is the passive end 12, the contact support 2 is in contact with the passive end 12 of the rocker arm 1 that drives its movement, and the contact support 2 is close to the static The side of the contact 5 is connected with a movable contact bridge 4, the distance b between the passive end 12 of the rocker arm 1 and the center of the rotating shaft 6 and the distance a between the active end 11 of the rocker arm 1 and the center of the rotating shaft 6, the leverage ratio b:a ratio greater than 1.

[0019] The ratio range of the lever ratio b:a of the rocker arm 1 is 1

[0020] The rocker arm 1 has one or more active end...

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PUM

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Abstract

The invention discloses a switching device with lever ratio, comprising a shell, a rocker arm, a rotating shaft, a contact support, a moving contact bridge and a fixed contact, wherein the rocker arm is rotatably arranged on the rotating shaft; one end of the rocker arm is a driving end and the other end of the rocker arm is a driven end; the contact support is in contact connection with the driven end of the rocker arm driving the contact support to move; the side of the contact support, which is close to the fixed contact, is provided with the moving contact bridge; and the lever ratio of the distance b between the driven end of the rocker arm and the center of the rotating shaft and the distance a between the driving end of the rocker arm and the center of the rotating shaft is more than 1. The switching device has the beneficial effects of strong breaking capability, long service life, simple structure, low cost and convenience in installation.

Description

technical field [0001] The invention relates to a switching device with a lever ratio. technical background [0002] The switching device of the existing contactor moves together with the main body when switching, and its stroke ratio is 1:1, which leads to the fact that the switching device needs to accumulate a large amount of energy in the stroke before switching in the contactor pull-in stage to make the contactor pull in. The contactor consumes a lot of energy, and correspondingly there is power loss and heat radiation. Moreover, the existing conversion device has the disadvantages of complicated structure and high cost. Contents of the invention [0003] The invention solves the problems of high energy consumption, complex structure and high cost in the existing contactor, and provides a switch device with a lever ratio with low cost, simple structure and strong breaking capacity. [0004] Technical scheme of the present invention: [0005] A switch device with a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01H3/46H01H45/00
Inventor 韩志兴葛顺锋胡锦泰李强史亚闻
Owner SHANGHAI NOARK ELECTRIC
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