Permanent-magnet vacuum circuit breaker switch

A circuit breaker switch, permanent magnet vacuum technology, applied in the direction of high-voltage air circuit breakers, electric switches, high-voltage/high-current switches, etc., can solve the problems of mechanical wear, complex structure of circuit breakers, misoperation, etc., and achieve the effect of reducing the number

Active Publication Date: 2015-10-28
ASIA ELECTRICAL POWER EQUIP SHENZHEN CO LTD
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  • Abstract
  • Description
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AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a permanent magnet vacuum circuit breaker switch, which solves the technical problems of complex structure of the current circuit breaker in the ring main unit, mechanical wear caused by too many mechanical actions, and misoperation

Method used

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  • Permanent-magnet vacuum circuit breaker switch

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Embodiment Construction

[0023] The present invention will be further elaborated below with reference to the figures.

[0024] see figure 1 , A permanent magnet vacuum circuit breaker switch 1 of the present invention includes: a permanent magnet operating mechanism 100 , a vacuum solidified pole 200 , a main shaft 300 and a switch frame 400 .

[0025] Please refer to the attached image 3 and 4 As shown, the permanent magnet operating mechanism 100 includes an upper cover plate 4, a lower cover plate 2, a silicon steel sheet assembly 3, a moving iron core ejector rod assembly 8, a closing electromagnetic coil 5, an opening electromagnetic coil 6, and a closing static iron core 7. The opening static iron core 10, the permanent magnet 9 and the permanent magnet mechanism vacuum circuit breaker controller 11 for control. The moving iron core ejector rod assembly 8 runs through the permanent magnet operating mechanism 100 . The silicon steel sheet assembly 3 is composed of a plurality of E-shaped sil...

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Abstract

The invention provides a permanent-magnet vacuum circuit breaker switch, which comprises a permanent-magnet operation mechanism, a vacuum embedded pole, a main shaft and a switch frame body. When a closing solenoid coil is powered on by a vacuum circuit breaker controller, a movable iron core push rod assembly is drawn to adhere to a closing iron core under the effect of the magnetic field attraction force. Meanwhile, the action of a magnetic field is generated by the movable iron core push rod assembly and a permanent magnet, so that the movable iron core push rod assembly is actuated to extend towards a closing end. The main shaft is driven to rotate by an output transition connecting lever assembly, and then the pull-rod connecting lever of the main shaft pulls an insulated pull rod in the upward linkage manner. In this way, the closing state is realized. The opening state can be realized on the contrary. According to the technical scheme of the permanent-magnet vacuum circuit breaker switch, the outer shell and the vacuum explosion chamber of the embedded pole are made of an insulating medium, so that the dual insulation arc-extinguishing effect is realized. No existing mechanical type operating mechanism is adopted, so that the number of transmission members is reduced. The opening/closing state of the permanent-magnet vacuum circuit breaker switch is controlled based on the manual operation of a cam mechanism or a vacuum circuit breaker controller of a permanently magnetic mechanism.

Description

technical field [0001] The invention relates to the technical field of circuit breakers of medium-voltage ring network cabinets, in particular to a permanent magnet vacuum circuit breaker switch. Background technique [0002] At present, most of the known medium-voltage ring network cabinets use spring operating mechanisms. The operating mechanism is one of the key core components in the medium-voltage ring network cabinet. However, the spring operating mechanism has the following disadvantages: closing is achieved by means of a locking mechanism after the closing spring is stretched and stored by the motor or manpower. Relying on mechanism transmission, the total number of parts is large, the transmission mechanism is relatively complex, the manufacturing process requirements are high, and there are many sliding friction surfaces. The wear, corrosion, loss and solidification of these parts will cause the spring operating mechanism to operate incorrectly. unpredictable cons...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01H33/66H01H33/666
CPCH01H33/66H01H33/666
Inventor 郭予龙高向华杜立春
Owner ASIA ELECTRICAL POWER EQUIP SHENZHEN CO LTD
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