CN203277263U

CN203277263U - Magnetic tripping device of plastic-casing breaker

Info

Publication number: CN203277263U
Application number: CN 201320265425
Authority: CN
Inventors: 史祺; 王英
Original assignee: Tianjin Baili Electronic Co Ltd
Current assignee: Tianjin Baili Electronic Co Ltd
Priority date: 2013-05-16
Filing date: 2013-05-16
Publication date: 2013-11-06
Anticipated expiration: 2023-05-16

Abstract

The utility model relates to a magnetic tripping device of a plastic-casing breaker. The device comprises two iron cores. One of the iron cores is U-shaped with two sides having different length and the other of the iron cores is U-shaped with two sides having the same length. A protruded end arm at a broadside of an armature iron rectangle plate is inserted to a rectangle groove of the iron core with two sides having different length. End part of the other broadside of the armature iron rectangle plate is provided with two protrusions that form a triangle groove with a big outer part and a small inner part. Two vertical sides of a reverse U-shaped conductive element are wrapped and fixed by three surfaces of the two iron cores. Two connection plates are respectively fixedly connected with the two vertical sides of the conductive element. The two ends of the spring are respectively hooked with ditch grooves of a protruded end column of the iron core with two sides having different length and the triangle groove of the armature iron. The magnetic tripping device system of the plastic-casing breaker can meet the requirements of specific structures, improves attractive power of a magnetic field, reduces size accounting for the breaker, facilitates connection and testing, and is characterized by being simple in structure, stable and reliable, and quick in action.

Description

The magnetic trip gear of breaker of plastic casing

Technical field

The utility model belongs to a kind of breaker of plastic casing, particularly relates to a kind of magnetic trip gear of breaker of plastic casing.

Background technology

Along with the development of low voltage electrical apparatus industry, also more and more higher for the requirement of breaker of plastic casing, volume is little, the disjunction index is high and the action of magnetic tripping system is inexorable trend soon.Error during large and spring is processed at the present known breaker of plastic casing magnetic tripping system volume shared due to the internal structure position limitation can not satisfy the real modular requirement of existing circuit breaker.

Summary of the invention

The utility model provides a kind of compact conformation volume urine in the magnetic trip gear of the reliable breaker of plastic casing of connecting moves for solving the technical problem that exists in known technology.

the technical scheme that the utility model is taked for the technical problem that exists in the solution known technology is: it includes iron core, armature, heat conducting element, connecting plate and spring, it is characterized in that: described iron core has two, one is the length of side iron cores such as U font two is perpendicular, another is the perpendicular long iron core of inequilateral of U font two, two vertical edge appearance of the length of side iron cores such as the short vertical edge of the long iron core of described inequilateral is long and described etc., and have respectively from top to bottom in the upper end of a vertical edge of the length of the long iron core of described inequilateral a pair of rectangular groove is arranged in both sides, on described a pair of rectangular groove, a recessed swallow tail shaped slot is arranged, a protrusion newel post with a plurality of grooves that protrudes upward is arranged at the recessed place of described swallow tail shaped slot, described armature is a rectangular slab, the just in time coupling grafting mutually of described a pair of rectangular groove of a pair of extended protruding end arm and described not isometric iron core is arranged on a broadside of described armature rectangular slab, there are outward extending two protruding ends the end of another broadside of described armature, and the little triangular groove of imperial palace consist of between this two protruding end outside, described heat conducting element is a reverse U shape, embraced by three faces of described two iron cores respectively on two vertical edges of this reverse U shape heat conducting element, and be connected on it by two iron core U fonts bottoms, and four vertical edges of described two iron cores coexist same sides of described heat conducting element, long limit one side of described not isometric iron core is an other side of a side at other three vertical edges of relatively described two iron cores, described connecting plate has two, and one is anti-L shaped connecting plate, and another is the reverse U shape connecting plate, and in the upper end of the vertical edge on a limit of described U font connecting plate, and the limit horizontal sides that becomes vertically to stretch out is therewith arranged, the vertical edge that limit of described anti-L shaped connecting plate and described reverse U shape heat conducting element are embraced and are connected by the length of side iron core such as described is connected mutually, and one of another vertical edge of being embraced and be connected by described not isometric iron core and described U font connecting plate is not connected mutually with another vertical edge that stretches out horizontal sides, described spring one end hook hangs in groove in described protrusion newel post on described not isometric iron core, and the other end is hooked in the described triangular groove of described armature.

Advantage and the good effect that the utlity model has are: the magnetic release system of breaker of plastic casing can satisfy the requirement of ad hoc structure, increased the suction in magnetic field, reduce the volume of shared circuit breaker, be convenient to connect and test, had requirement simple in structure, reliable and stable, that action is fast.

Description of drawings

Fig. 1 is core structure schematic diagram of the utility model;

Fig. 2 is another core structure schematic diagram of the utility model;

Fig. 3 is the structural representation of the utility model armature;

Fig. 4 is the structural representation of the utility model iron core heat conducting element;

Fig. 5 is the utility model magnetic tripping system general structure schematic diagram;

Fig. 6 is the position view of the utility model magnetic tripping system in breaker of plastic casing.

Embodiment

For further understanding summary of the invention of the present utility model, Characteristic, hereby exemplify following examples, and coordinate accompanying drawing to be described in detail as follows:

As shown in Fig. 1,2,3,4,5, the minor face 3 of the long iron core 2 of inequilateral with etc. three vertical edges of two vertical edges of length of side iron core 1 be a side, and the long vertical edge 4 of the long iron core 2 of inequilateral is arranged like this for an other side, with the length of side iron cores 1 such as U font two is perpendicular and the perpendicular long iron core iron core 2 of inequilateral of U font two respectively with two vertical edges of reverse U shape heat conducting element 10 with link into an integrated entity formation one loop of rivet 11.Rectangle armature 8 has a pair of extended protruding end arm to be plugged in a pair of rectangular groove 7 of the long vertical edge 4 of iron core 2.Spring 14 1 ends can hang in the recessed swallow tail shaped slot 5 of the long vertical edge 4 of iron core 2 with the arbitrary position in the semicircle groove 6 of the protrusion newel post of a plurality of grooves, the other end hangs in the triangular groove 9 that on armature 8 one ends, outward extending two protruding ends form.Rivet mutually with a vertical edge of reverse U shape heat conducting element 10 on a limit of anti-L shaped connecting plate 13, does not rivet mutually with another vertical edge 12 that stretches out horizontal sides for one of another vertical edge of heat conducting element 10 and U font connecting plate.

As shown in Figure 6, be equipped with respectively the magnetic trip gear that is consisted of by

iron core

1,2, heat conducting element 10, armature 8 and connecting

plate

12,13 etc. in mutually at three of circuit breaker 14.

When two connecting

plates

12,13 during by heat conducting element 10 current flowing two

iron cores

1,2 electromagnetic forces that produce can overcome the active force that spring 14 produces, suction increases, armature 8 is with one side phase adhesive of an end with the iron core 1 of triangular groove 9.

Claims

1. the magnetic trip gear of a breaker of plastic casing, it includes iron core, armature, heat conducting element, connecting plate and spring, it is characterized in that: described iron core has two, one is the length of side iron cores such as U font two is perpendicular, another is the perpendicular long iron core of inequilateral of U font two, two vertical edge appearance of the length of side iron cores such as the short vertical edge of the long iron core of described inequilateral is long and described etc., and have respectively from top to bottom in the upper end of a vertical edge of the length of the long iron core of described inequilateral a pair of rectangular groove is arranged in both sides, on described a pair of rectangular groove, a recessed swallow tail shaped slot is arranged, a protrusion newel post with a plurality of grooves that protrudes upward is arranged at the recessed place of described swallow tail shaped slot, described armature is a rectangular slab, the just in time coupling grafting mutually of described a pair of rectangular groove of a pair of extended protruding end arm and described not isometric iron core is arranged on a broadside of described armature rectangular slab, there are outward extending two protruding ends the end of another broadside of described armature, and the little triangular groove of imperial palace consist of between this two protruding end outside, described heat conducting element is a reverse U shape, embraced by three faces of described two iron cores respectively on two vertical edges of this reverse U shape heat conducting element, and be connected on it by two iron core U fonts bottoms, and four vertical edges of described two iron cores coexist same sides of described heat conducting element, long limit one side of described not isometric iron core is an other side of a side at other three vertical edges of relatively described two iron cores, described connecting plate has two, and one is anti-L shaped connecting plate, and another is the reverse U shape connecting plate, and in the upper end of the vertical edge on a limit of described U font connecting plate, and the limit horizontal sides that becomes vertically to stretch out is therewith arranged, the vertical edge that limit of described anti-L shaped connecting plate and described reverse U shape heat conducting element are embraced and are connected by the length of side iron core such as described is connected mutually, and one of another vertical edge of being embraced and be connected by described not isometric iron core and described U font connecting plate is not connected mutually with another vertical edge that stretches out horizontal sides, described spring one end hook hangs in groove in described protrusion newel post on described not isometric iron core, and the other end is hooked in the described triangular groove of described armature.