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Energy-saving contactor

A technology of contactors and moving contacts, applied in relays, non-polar relays, electromagnetic relays, etc., can solve the problems of permanent magnets that cannot be demagnetized, contactors that cannot be broken, and potential safety hazards

Inactive Publication Date: 2017-03-22
WENZHOU UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the working reliability of the permanent magnet contactor is low. When the demagnetization circuit fails, the permanent magnet cannot be demagnetized, and the contactor cannot be broken, resulting in serious safety hazards.

Method used

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Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0020] See attached Figure 1-4 , the energy-saving contactor disclosed by the present invention includes a contact bracket 1, a static contact 2, a moving contact 3, an upper yoke 4, a lower yoke 5, an electromagnetic coil 6, and a reset that applies a restoring force to the contact bracket 1 The upper yoke 4 is set in linkage with the moving contact 3 and the contact bracket 1, the static contact 2 is set in cooperation with the moving contact 3, and the lower yoke 5 is set in conjunction with the The upper yoke 4 is matched with each other, the electromagnetic coil 6 is wound on the lower yoke 5 , and the lower yoke 5 is provided with a permanent magnet 8 matched with the upper yoke 4 .

[0021] The present invention further provides that: the lower yoke 5 is also provided with a mechanical impact self-detection mechanism, and the mechanical impact self-detection mechanism includes an iron-gallium alloy rod 9 that bears the impact force of the upper yoke 4 and is wound arou...

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PUM

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Abstract

The invention relates to an energy-saving contactor, which comprises a contact bracket, a fixed contact, a moving contact, an upper yoke, a lower yoke, an electromagnetic coil and a reset part, wherein the reset part applies restoring force to the contact bracket; the upper yoke, the moving contact and the contact bracket are arranged in a linked manner; the fixed contact and the moving contact are cooperatively arranged; the lower yoke and the upper yoke are cooperatively arranged; the electromagnetic coil is wound on the lower yoke; and a permanent magnet matched with the upper yoke is arranged in the lower yoke. The energy-saving contactor has an energy-saving effect and a mechanical shock self-test function, and can carry out self-test on the impact force in the closing process of the contactor, thereby mastering the dynamic characteristics of the contactor in real time.

Description

technical field [0001] The invention relates to an energy-saving contactor. Background technique [0002] In a broad sense, a contactor refers to an electrical appliance that flows through a coil to generate a magnetic field to close the contacts to control the load. At present, contactors can be divided into electromagnetic contactors and permanent magnet contactors according to the operating mechanism, and can be divided into DC contactors and AC contactors according to the form of the main contact connection circuit. [0003] The electromagnetic contactor relies on the connection and breaking of the electromagnetic coil to realize the closing and opening of the contactor. When the electromagnetic coil of the contactor is not connected to the current, under the action of the elastic force of the spring, the upper and lower armatures cannot be contacted, the moving contact of the contactor is separated from the static contact, and the contactor is in the disconnected state...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01H51/01H01H50/36
CPCH01H51/01H01H50/36
Inventor 舒亮李鹏辉吴桂初李波
Owner WENZHOU UNIVERSITY