CN203466098U

CN203466098U - Improved structure of auxiliary breaker switch

Info

Publication number: CN203466098U
Application number: CN201320549817.5U
Authority: CN
Inventors: 林海光
Original assignee: XIAMEN APG ELECTRIC Co Ltd
Current assignee: XIAMEN APG ELECTRIC Co Ltd
Priority date: 2013-09-05
Filing date: 2013-09-05
Publication date: 2014-03-05
Anticipated expiration: 2023-09-05

Abstract

The utility model discloses an improved structure of an auxiliary breaker switch. The improved structure of the auxiliary breaker switch comprises a base board, an upper casing, a contact support, a positioning member, a contact spring, a contact point spring, a contact point bridge blade, tile-type gaskets, pan head screws and static contacts, wherein the base board is internally provided with an accommodating chamber, through holes are respectively arranged at a front end and a back end of the base board, the contact support is movably sleeved in the front and back through holes of the base board, and two ends of the contact support extend out of the base board. According to the improved structure of the auxiliary breaker switch, the contact support movably penetrates through the front and back through holes of the base board, so a first auxiliary switch and a second auxiliary switch which have the structures provided by the invention and are connected in series, so a contact support of the first auxiliary switch and a contact support of the second auxiliary switch are enabled to mutually press against each other, the first contact support and the second contact support are driven to link by driving a push rod connected with the first contact support to realize on or off of the auxiliary switches, and thereby a purpose of digit increasing is realized based on demands.

Description

The improvement structure of auxiliary switch for circuit breaker

Technical field

The utility model relates to a kind of high voltage switchgear, particularly relates to a kind of improvement structure of auxiliary switch for circuit breaker.

Background technology

As shown in Figure 1 and Figure 2, it has shown the general configuration of the auxiliary switch control that is applied to circuit breaker in prior art, it includes the auxiliary spring 9 ' of driving base plate 1 ', upper casing 2 ', contact carriage sheet 3 ', watt type packing ring 4 ', contact support 5 ', diaphragm seal 6 ', fixed contact 7 ', keeper 8 ' and arranging for stroke, and this contact carriage sheet 3 ' is active in the activity space 51 ' of contact support 5 '.Its concrete principle is: after breaker electrifying, switch cubicle is in opening or during closure state, auxiliary meeting seesaws in zone of action, and when chassis vehicle is closed, circuit breaker is test position, and when chassis vehicle is separated, circuit breaker is halfway position.In actual applications, there are some defects in the auxiliary switch of said structure: for example volume is larger, assemble consuming time, waste raw material.Therefore, aforementioned auxiliary switch makes smaller volume when wanting to keep original performance constant, must change its structural design, need to work out a kind of new technical scheme and solve the problems referred to above.

Utility model content

The purpose of this utility model is to provide that a kind of installing space is less, long service life, the improvement structure of the auxiliary switch for circuit breaker of figure place of can increasing.

For achieving the above object, technical solution of the present utility model is:

The utility model is a kind of improvement structure of auxiliary switch for circuit breaker, and it includes base plate, upper casing, contact support, keeper, touch spring, contact spring, contact carriage sheet, watt type packing ring, pan-headed screw, fixed contact; In described base plate, have a containing cavity, the front end of base plate is offered a front through hole, and this front through hole communicates with containing cavity, and upper casing snaps onto the open end of base plate containing cavity; Described keeper, contact spring, contact carriage sheet are all arranged in contact support, and contact support activities is nested with in the front through hole of base plate and base plate is stretched out in its outer end, and touch spring is socketed in contact and supports on the stern post of tail end and lean with containing cavity inwall; Described fixed contact locks in the containing cavity of base plate by pan-headed screw, watt type packing ring, and fixed contact contacts or disconnects with contact carriage sheet; A rear through hole is offered in the rear end of described base plate, and this rear through hole and front through hole have same center line; The stern post activity of described contact support is set in the rear through hole of base plate and can passes base plate.

Adopt after such scheme, owing to offering respectively through hole and rear through hole and front through hole and there is same center line in base plate described in the utility model front-end and back-end, contact is supported movable being located in before base plate, in rear through hole, make on two contact supports on first auxiliary switch with the utility model structure being cascaded and the second auxiliary switch contact support mutually lean, by driving, be connected to the push rod that the first contact is supported, drive the first contact support and the second contact support interlock, the break-make of realization to auxiliary switch, thereby reach the object that increases as required figure place, there is result of use identical with original auxiliary switch simultaneously, use installing space less, long service life, economize on resources, reliability is high, change the advantages such as more convenient.

Below in conjunction with the drawings and specific embodiments, the utility model is further described.

Accompanying drawing explanation

Fig. 1 is the three-dimensional exploded view of commonly using auxiliary switch for circuit breaker;

Fig. 2 is the axonometric drawing of commonly using auxiliary switch for circuit breaker;

Fig. 3 is three-dimensional exploded view of the present utility model;

Fig. 4 is axonometric drawing of the present utility model.

Embodiment

As shown in Figure 3, Figure 4, the utility model is a kind of improvement structure of auxiliary switch for circuit breaker, and it includes base plate 1, upper casing 2, contact support 3, keeper 4, touch spring 5, contact spring 6, contact carriage sheet 7, watt type packing ring 8, pan-headed screw 9, fixed contact 10.

In described base plate 1, have a containing cavity 11, front through hole 12 and a rear through hole 13 offered respectively in the front-end and back-end of base plate 1, and this front through hole 12 has same center line with rear through hole 13, and front through hole 12 and rear through hole 13 all communicate with containing cavity 11.Described upper casing 2 snaps onto the open end of base plate 1 containing cavity 11.

The front end of described contact support 3 is push rod 31, the rear end of contact support 3 is a stern post 32, the subject activity of contact support 3 is nested with in the containing cavity 1 of base plate 1, the front end push rod 31 of contact support 3 is positioned at outside base plate 1 through the front through hole 12 of base plate 1, and the rear end stern post 32 of contact support 3 can be positioned at outside base plate 1 through the rear through hole 12 of base plate 1.Described keeper 4, contact spring 6, contact carriage sheet 7 are all arranged on contact and support in 3,

Described touch spring 5 is socketed in contact and supports to lean on the stern post 31 of 3 tail ends and with containing cavity 11 inwalls; Described fixed contact 10 locks in the containing cavity 11 of base plate 1 by pan-headed screw 9, watt type packing ring 8, and fixed contact 10 forms and contacts or off-state with contact carriage sheet 7.

Using method of the present utility model:

Two auxiliary switches with the utility model structure are cascaded, by screw, be arranged on switch cubicle, on contact support 3 on the first auxiliary switch 20 and the second auxiliary switch 30 contact support 3 mutually lean, by driving, be connected to the first contact and support the push rod 31 on 3, drive the first contact to support the 3 and second contact to support 3 interlocks, realize the break-make to auxiliary switch.

Emphasis of the present utility model is just: contact support is located in base plate.

The above, it is only the utility model preferred embodiment, serial number of the present utility model can be determined according to needs, therefore can not limit the scope that the utility model is implemented with this, the equivalence done according to the utility model claim and description changes and modifies, and all should still belong in the scope that the utility model patent contains.

Claims

1. an improvement structure for auxiliary switch for circuit breaker, it includes base plate, upper casing, contact support, keeper, touch spring, contact spring, contact carriage sheet, watt type packing ring, pan-headed screw, fixed contact; In described base plate, have a containing cavity, the front end of base plate is offered a front through hole, and this front through hole communicates with containing cavity, and upper casing snaps onto the open end of base plate containing cavity; Described keeper, contact spring, contact carriage sheet are all arranged in contact support, and contact support activities is nested with in the front through hole of base plate and base plate is stretched out in its outer end, and touch spring is socketed in contact and supports on the stern post of tail end and lean with containing cavity inwall; Described fixed contact locks in the containing cavity of base plate by pan-headed screw, watt type packing ring, and fixed contact contacts or disconnects with contact carriage sheet; It is characterized in that: a rear through hole is offered in the rear end of described base plate, this rear through hole and front through hole have same center line; The stern post activity of described contact support is set in the rear through hole of base plate and can passes base plate.