Contactor

A contactor, moving contact technology, applied in relays, electromagnetic relays, electromagnetic relay details, etc., to achieve the effect of reducing the number of parts

Active Publication Date: 2014-08-13
SCHNEIDER ELECTRIC IND SAS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Although the current contactor can basically realize the bypass function, there is still room for improvement

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0031] Embodiments of the present invention will be specifically described below with reference to the drawings.

[0032] figure 1 It is a front view of an embodiment of the contactor of the present invention. The contactor includes a housing 200 (in figure 1 not shown in), the fixed contact 202, the movable contact 204, the movable contact finger 206 electrically connected with the movable contact, the U-shaped magnetic circuit 208 surrounding the movable contact finger, and the U-shaped magnetic circuit opening The plate-shaped magnetic circuit 210 is opposite and separated by an air gap. The movable contact finger 206 extends across the U-shaped magnetic circuit along a plane of symmetry of the U-shaped magnetic circuit. The movable contact 204 is disposed below both ends of the movable contact finger 206 . The fixed contact 202 is opposite to the movable contact 204 .

[0033] figure 2 is a side view of the contactor. from figure 2 It can be seen that there are f...

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PUM

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Abstract

The invention provides a contactor. The contactor comprises a shell, fixed contacts (202), moving contacts (204), at least two moving contact finger parts (206) conductively connected with the moving contacts, a U-shaped magnetic circuit (208) encircling the moving contact finger parts and a plate-shaped magnetic circuit (210) which is opposite to the opening of the U-shaped magnetic circuit and is separated from the opening by an air gap, wherein the moving contacts are arranged at the two ends of the moving contact finger parts; the fixed contacts are arranged opposite to the moving contacts; and the at least two moving contact finger parts are basically arranged together in parallel and insulated with each other. The contactor conforms to the class 2 standard of IEC (international electrotechnical commission) 60947-4 and can not be subjected to contact welding in the test run process of the prospective current.

Description

technical field [0001] The present invention relates to contactors, in particular to high current contactors used in soft starters. Background technique [0002] In soft starter products, a dedicated contactor is typically used to bypass the rectifier (SCR) after the vehicle has fully started. Bypassing the rectifier prevents power from being dissipated as heat in the rectifier chip. The contactor is opened (open operation) during starting or deceleration (braking) so that the rectifier unit controls the motor vehicle, and in normal stable operation after the SCR is fully fired, the contactor is closed (open operation) operate). [0003] Commonly used contactors include single-pole contactors, which operate a single movable contact with a DC coil (eg, Ghisalba) or AC coil magnetic circuit (eg, Simens); and multi-pole contactors, whose contacts are connected in parallel. Form a single pole (eg, Rockwell). [0004] The combination of U-shaped magnetic circuit and plate-sha...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01H50/54H01H50/16
Inventor 伯纳德·比扎德
Owner SCHNEIDER ELECTRIC IND SAS
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