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Integrated forward and reverse rotation alternating-current contactor

An AC contactor, integrated technology, applied in the direction of non-polar relays, etc., can solve the problems of dazzling connection wires, laborious brains, etc., to save costs, reduce the number of uses, and facilitate maintenance.

Inactive Publication Date: 2014-11-12
SHANDONG VOCATIONAL COLLEGE OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In factories and people's lives, there are countless devices that use the forward and reverse control of motors, but the devices that control the forward and reverse of motors are usually realized by two AC contactors. It's a pain in the ass to find

Method used

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  • Integrated forward and reverse rotation alternating-current contactor

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Embodiment Construction

[0008] As shown in the figure: when the forward rotation start button is pressed, the forward rotation coil 4 is energized and the forward rotation static iron core 3 generates electromagnetic suction to attract the armature 13. The forward rotation main contact 5 is closed, and the forward rotation auxiliary normally open contact 1 is closed. The forward rotation auxiliary normally closed moving contact 6 overcomes the resistance of the contact spring 16 and is disconnected from the forward rotation auxiliary normally closed static contact 7, and the motor is energized to rotate forward. Press the reverse start button, the reverse coil 11 is energized and the reverse static iron core 12 generates electromagnetic suction to attract the upper armature 13, the reverse main contact 10 is closed, the reverse auxiliary normally open contact 14 is closed, and the reverse auxiliary normally closed The moving contact 9 overcomes the resistance of the contact spring 16 and is disconnect...

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Abstract

The invention provides an integrated forward and reverse rotation alternating-current contactor. The integrated forward and reverse rotation alternating-current contactor is characterized in that when a forward rotation starting button is pressed down, a forward rotation coil is powered on, electromagnetic attraction force is generated by a forward rotation static iron core, an armature is attracted down, a main forward rotation contact is closed, an auxiliary forward rotation normally-open contact is closed, and resistance of a contact spring is overcome by an auxiliary forward rotation normally-closed moving contact so that the auxiliary forward rotation normally-closed moving contact can be disconnected from an auxiliary forward rotation normally-closed fixed contact and a motor can be powered on to perform forward rotation; a reverse rotation starting button is pressed down, a reverse rotation coil is powered on, electromagnetic attraction force is generated by a reverse rotation static iron core, the armature is attracted up, a main reverse rotation contact is closed, an auxiliary reverse rotation normally-open contact is closed, and resistance of the contact spring is overcome by an auxiliary reverse rotation normally-closed moving contact so that the auxiliary reverse rotation normally-closed moving contact can be disconnected from an auxiliary reverse rotation normally-closed fixed contact and the motor can be powered on to perform reverse rotation. A stop button is pressed down, the armature returns, the motor is powered off to stop rotating, and the phenomenon that the contacts are burnt by arc light caused when the contacts make contact is avoided through an arc extinguishing chamber. Due to the arrangement, the number of the contactors in use is reduced, the motor is controlled to perform forward and reverse rotation, cost is saved, and maintenance is facilitated.

Description

[0001] Liu Changzheng Wu Jihua Chen Wei technical field [0002] The invention relates to the field of motor controllers, in particular to a forward and reverse integrated AC contactor. Background technique [0003] In factories and people's lives, there are countless devices that use the forward and reverse of motors to achieve control, but the devices that control the forward and reverse of motors are usually realized by two AC contactors. It's also a pain in the ass to find. Contents of the invention [0004] The present invention proposes a forward and reverse integrated AC contactor, which is characterized in that: when the forward rotation start button is pressed, the forward rotation coil is energized, the forward rotation static iron core generates electromagnetic suction, the armature is sucked down, and the forward rotation main contact is closed , the forward rotation auxiliary normally open contact is closed, the forward rotation auxiliary normally c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01H51/12
Inventor 刘长政武际花陈伟
Owner SHANDONG VOCATIONAL COLLEGE OF SCI & TECH
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