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Bridge type contact load switch and intelligent ammeter

A load switch, bridge contact technology, applied in electrical switches, high-voltage/high-current switches, circuits, etc., can solve problems such as the impact of the reliability of smart meters, increase the difficulty of arc starting, ensure stability, and ensure synchronization. Effect

Active Publication Date: 2020-01-07
顾天琪 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The invention provides a bridge contact load switch, which solves the impact on the reliability of the smart meter due to the generation of arc during high current operation

Method used

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  • Bridge type contact load switch and intelligent ammeter
  • Bridge type contact load switch and intelligent ammeter
  • Bridge type contact load switch and intelligent ammeter

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach

[0036] method one

[0037] Such as image 3 As shown, the power source includes a permanent magnet fixed on the first connecting rod 1, and an electromagnetic coil 6 fixedly arranged relative to the shell structure of the load switch. The attraction and repulsion of the permanent magnet and the electromagnetic coil 6 located in the middle.

[0038] Through the above method, the rotation of the first connecting rod 1 can be quickly realized at the moment when the electromagnetic coil 6 is fed with current in different directions, thereby driving the rotation of the second connecting rod 2, so that the arc is cut off quickly, avoiding contact burnout, melting and Phenomena such as bonding, this kind of situation belongs to the situation of built-in power source.

[0039] way two

[0040] The power source includes a gear 7 that is fixedly connected to one end of the two first connecting rods 1 that rotate at a fixed axis, and a double-sided rack 8 that meshes with the two gear...

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Abstract

The invention relates to an electrical product and particularly relates to a bridge type contact load switch. The switch comprises two double-connecting-rod mechanisms which are symmetrically arranged, wherein each double-connecting-rod mechanism comprises a first connecting rod and a second connecting rod, one end of the first connecting rod rotates around a fixed shaft, the other end of the first connecting rod is hinged to the second connecting rod, the other end of the second connecting rod is hinged to a moving contact, in the process that the two first connecting rods synchronously rotate around the fixed shaft, the two second connecting rods synchronously drive the moving contact to move linearly, the moving contact comprises a mounting base hinged to the two second connecting rodsrespectively, spring pieces are arranged on the mounting base, two moving contacts are arranged at two ends, relative to the outer sides of the two mounting bases, of each spring piece and correspondto two fixed contacts which are fixedly arranged respectively, and two guide rails used for guiding the two mounting bases are further included. The switch is advantaged in that on one hand, arcing difficulty can be increased fundamentally, on the other hand, the contact area between an arc and the air can be increased, thereby quick arc extinguishing is achieved, and the invention further relatesto an intelligent electric meter.

Description

technical field [0001] The invention relates to electrical products, in particular to a bridge-type contact load switch and an intelligent electric meter. Background technique [0002] In the prior art, the contact system of the built-in load switch used in the smart meter has two types: single contact or double contact, but both are in the form of moving and static reeds leading out to connect to the load circuit. When this form is applied to In the smart meter, when faced with a large load, the reliability of the smart meter is easily affected due to its limited arc breaking capability. [0003] In view of the foregoing, the present inventor, based on years of rich practical experience and professional knowledge in the engineering application of this type of product, and in conjunction with the application of academic theory, actively researches and innovates, in order to create a bridge contact load switch and smart meter, so that More practical. Contents of the invent...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01H33/04H01H33/08H01H33/42
CPCH01H33/04H01H33/08H01H33/42
Inventor 顾天琪李嘉
Owner 顾天琪
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