CN205282366U - Solid insulation permanent magnetism vacuum circuit breaker - Google Patents

Abstract

The utility model discloses a solid insulation permanent magnetism vacuum circuit breaker, including solid insulation layer, explosion chamber, permanent magnetism operating device, excess of stroke spring, separating brake spring, low pressure operating coil, stress cone and low pressure lead -out wire, arrange low pressure operating coil in permanent magnetism operating device through the solid insulation inside, draw forth through the stress cone, with permanent magnetism operating device arrange in with the equal high potential of explosion chamber to insulating pull rod between cancellation permanent magnetism operating device and the explosion chamber, the while inside of also arranging the separating brake spring and the excess of stroke spring of circuit breaker in permanent magnetism operating device, the volume of circuit breaker has so been dwindled greatly, owing to cancelled insulating pull rod, the action dispersibility of circuit breaker will increase substantially greatly reduced, the reliability of just moving, realized only leaning on horizontal insulated isolation to realize the action with the contactless direct control high voltage circuit breaker of low pressure.

Description

A kind of solid insulation permanent magnetic vacuum breaker

Technical field

This utility model relates to a kind of solid insulation permanent magnetic vacuum breaker, belongs to intelligent power network technical field.

Background technology

The basic functional principle of traditional vacuum circuit breaker is: operating mechanism (pull operation mechanism or permanent-magnet operating mechanism) will be divided by insulated tension pole, make a concerted effort to be delivered on the moving contact of vacuum interrupter, thus the conjunction transfer realizing chopper is made. It is dependent on vacuum in arc-chutes to realize arc-suppression function, and the insulation outside arc-chutes is noble gas insulation or solid insulation. Its shortcoming is: volume is big, action dispersibility is big.

Utility model content

The purpose of this utility model is the defect overcoming prior art, a kind of solid insulation permanent magnetic vacuum breaker is provided, is greatly reduced the volume of chopper, eliminates insulated tension pole, the action dispersibility of chopper will be substantially reduced, and Reliability of Microprocessor will increase substantially.

The technical scheme realizing above-mentioned purpose is: a kind of solid insulation permanent magnetic vacuum breaker, including solid insulating layer, arc-chutes, permanent-magnet operating mechanism, excess of stroke spring, tripping spring, low voltage operated coil, stress cone and low pressure lead-out wire, wherein:

Described arc-chutes and permanent-magnet operating mechanism are disposed in parallel in described solid insulating layer;

Described excess of stroke spring and tripping spring are co-axially located in described permanent-magnet operating mechanism, and described excess of stroke spring is positioned at the right side of described tripping spring;

Described low voltage operated coil is arranged on the inside of described permanent-magnet operating mechanism, and described low voltage operated coil is positioned at the outside of described tripping spring, and the insulation between described low voltage operated coil and described permanent-magnet operating mechanism adopts solid insulation;

Described stress cone is arranged in described solid insulating layer, and described stress cone is positioned at the outside of described low voltage operated coil;

Described low pressure lead-out wire is vertically set in described solid insulating layer, and the top of described low pressure lead-out wire is connected with described low voltage operated coil.

Above-mentioned a kind of solid insulation permanent magnetic vacuum breaker, wherein, described permanent-magnet operating mechanism and arc-chutes are positioned at identical high potential.

Solid insulation permanent magnetic vacuum breaker of the present utility model, is placed in inside permanent-magnet operating mechanism by low voltage operated coil by solid insulation technology, draws through stress cone; Permanent-magnet operating mechanism is placed in the high potential equal with arc-chutes, thus the insulated tension pole cancelled between permanent-magnet operating mechanism and arc-chutes, the tripping spring of chopper and excess of stroke spring are also placed in the inside of permanent-magnet operating mechanism simultaneously, are so greatly reduced the volume of chopper; Owing to eliminating insulated tension pole, the action dispersibility of chopper will be substantially reduced, and Reliability of Microprocessor will increase substantially; Achieve and only achieve with the action of the contactless direct operation primary cut-out of low pressure by lateral isolation isolation.

Accompanying drawing explanation

Fig. 1 is the structural representation of solid insulation permanent magnetic vacuum breaker of the present utility model.

Detailed description of the invention

In order to make those skilled in the art be better understood when the technical solution of the utility model, below in conjunction with accompanying drawing, its detailed description of the invention is described in detail:

Refer to Fig. 1, most preferred embodiment of the present utility model, a kind of solid insulation permanent magnetic vacuum breaker, including solid insulating layer 8, arc-chutes 4, permanent-magnet operating mechanism 2, excess of stroke spring 1, tripping spring 3, low voltage operated coil 5, stress cone 6 and low pressure lead-out wire 7.

Arc-chutes 4 and permanent-magnet operating mechanism 2 are disposed in parallel in solid insulating layer 8, and permanent-magnet operating mechanism 2 and arc-chutes 4 are positioned at identical high potential; Excess of stroke spring 1 and tripping spring 3 are co-axially located in permanent-magnet operating mechanism 2, and excess of stroke spring 1 is positioned at the right side of tripping spring 3; Low voltage operated coil 5 is arranged on the inside of permanent-magnet operating mechanism 2, and low voltage operated coil 5 is positioned at the outside of tripping spring 3, insulation between low voltage operated coil 5 and permanent-magnet operating mechanism 2 adopts solid insulation, and namely low voltage operated coil 5 is placed in permanent-magnet operating mechanism 2 inside by solid insulation; Stress cone 6 is arranged in solid insulating layer 8, and stress cone 6 is positioned at the outside of low voltage operated coil 5, and stress cone 6 is connected with high potential, for being drawn by electronegative potential inside high potential by the primary cable of low voltage operated coil 5; Low pressure lead-out wire 7 is vertically set in solid insulating layer 8, and the top of low pressure lead-out wire 7 is connected with low voltage operated coil 5, and the bottom of low pressure lead-out wire 7 extends to the outward flange of solid insulating layer 8.

Solid insulation permanent magnetic vacuum breaker of the present utility model adopts vacuum injection technique single injection-molded.

Solid insulation permanent magnetic vacuum breaker of the present utility model, is placed in permanent-magnet operating mechanism 2 by low voltage operated coil 5 by solid insulation technology internal, draws through stress cone 6; Permanent-magnet operating mechanism 2 is placed in the high potential equal with arc-chutes 4, thus the insulated tension pole cancelled between permanent-magnet operating mechanism 2 and arc-chutes 4, the tripping spring 3 of chopper and excess of stroke spring 1 are also placed in the inside of permanent-magnet operating mechanism 2 simultaneously, are so greatly reduced the volume of chopper; Then pass through stress cone 6 to be drawn by low-voltage line, it is achieved thereby that only achieve with the action of the contactless direct operation primary cut-out of low pressure by lateral isolation isolation; Owing to eliminating insulated tension pole, the action dispersibility of chopper will be substantially reduced, and Reliability of Microprocessor will increase substantially.

Solid insulation permanent magnetic vacuum breaker of the present utility model, improves reliability, reduces volume and cost. But when the action dispersibility of chopper is less than 0.5ms, by intelligent control technology, operating passing zero control can be directly realized by mechanical chopper, this will have no precedent. Thus, very low cost, minimum volume, most high reliability premise under, it is achieved that real intelligent breaker. Solid insulation permanent magnetic vacuum breaker of the present utility model can realize without electric arc switching substantially, improves the short-circuit snap ability of chopper, and can be used for the special occasions such as no-flashy-flow switching of opening-closing capacitor bank.

Those of ordinary skill in the art will be appreciated that, above embodiments is intended merely to explanation this utility model, and it is not used as to restriction of the present utility model, as long as in spirit of the present utility model, the change of embodiment described above, modification all will be dropped in Claims scope of the present utility model.

Claims (2)

1. a solid insulation permanent magnetic vacuum breaker, it is characterised in that include solid insulating layer, arc-chutes, permanent-magnet operating mechanism, excess of stroke spring, tripping spring, low voltage operated coil, stress cone and low pressure lead-out wire, wherein:

Described arc-chutes and permanent-magnet operating mechanism are disposed in parallel in described solid insulating layer;

Described excess of stroke spring and tripping spring are co-axially located in described permanent-magnet operating mechanism, and described excess of stroke spring is positioned at the right side of described tripping spring;

Described low voltage operated coil is arranged on the inside of described permanent-magnet operating mechanism, and described low voltage operated coil is positioned at the outside of described tripping spring, and the insulation between described low voltage operated coil and described permanent-magnet operating mechanism adopts solid insulation;

Described stress cone is arranged in described solid insulating layer, and described stress cone is positioned at the outside of described low voltage operated coil;

Described low pressure lead-out wire is vertically set in described solid insulating layer, and the top of described low pressure lead-out wire is connected with described low voltage operated coil.

2. a kind of solid insulation permanent magnetic vacuum breaker according to claim 1, it is characterised in that described permanent-magnet operating mechanism and arc-chutes are positioned at identical high potential.