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Appliance switch capable of eliminating contact bouncing

A technology of electrical switch and contact bounce, which is applied in the direction of contact engagement, etc., and can solve the problems of driving, actuator difficulty, long driving stroke, and large volume.

Inactive Publication Date: 2008-06-25
李源
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In my early invention application PCT / CN2006 / 001908, I proposed a rolling electrical switch, in which rolling movable electrodes, arc-shaped movable rockers, etc. can also eliminate rebound, but in the actual implementation, due to the circular and cylindrical shape The drive stroke of the active electrode is long and the volume is too large, which brings difficulties to the drive and actuator, and is difficult to mass produce

Method used

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  • Appliance switch capable of eliminating contact bouncing
  • Appliance switch capable of eliminating contact bouncing
  • Appliance switch capable of eliminating contact bouncing

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0019] First combine the following figure 1 Describe the working principle of the variable radius arc rolling seesaw electrical switch provided by the present invention.

[0020] The movable electrode is composed of contact arcs 2, 3, rolling arc 1 and positioning device, and the fixed electrode is composed of fixed contacts 5, 6 and insulating plate 4. Under the promotion of the drive system and proper holding pressure, the movable electrode Roll on the fixed electrode to complete the function of the electric switch.

[0021] Due to the effect of holding force (such as magnetic holding relay), the movable electrode is always connected to 5 or 6 of the fixed electrodes in static state, and disconnected from the other end. When the driving force is applied to the movable electrode, the contact arc of the movable electrode After the segment leaves a fixed contact, it rolls toward the rolling arc segment on the insulator 4. Since the fixed contacts 5, 6 and the insulating plate ...

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PUM

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Abstract

The invention discloses an electric switch of a variable-radius arc shaped rolling wane which can eliminate the contact rebound, and the switch can be used for the universal electromagnet relay, the high power relay, the alternating current contactor, the circuit breaker, the power switch and other occasions.

Description

technical field [0001] The invention relates to an electrical switch, in particular to an electrical switch which utilizes rolling to eliminate rebound when a contact is closed, and belongs to the technical field of electronic components. Background technique [0002] Electrical switch is a general term for switching electrical components such as general electromagnetic relays, high-power relays, AC contactors, circuit breakers, and power switches. Among the faults of electrical switches, more than 90% of the faults occur on the contacts. An important The reason is that when the mechanical contact is closed at high speed, it is inevitable to collide, rebound, collide again, and rebound (bounce) until the inertial energy is exhausted to make stable contact. If the contact is closed under a large-capacity load, There is also arc ablation during each bounce, which shortens the life of the switch. This is a difficult problem for traditional power switches, electrical switches, c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01H1/16
Inventor 李源
Owner 李源