CN2510987Y

CN2510987Y - Separate-exciting electrical apparatus release for circuit breaker

Info

Publication number: CN2510987Y
Application number: CN 01263343
Authority: CN
Inventors: 严洪启
Original assignee: Individual
Current assignee: Individual
Priority date: 2001-10-18
Filing date: 2001-10-18
Publication date: 2002-09-11
Anticipated expiration: 2011-10-18

Abstract

The utility model relates to a separate-exciting release for a circuit breaker, which comprises a base part and an electromagnetic control part, wherein the base part comprises a base (1), a microswitch (11) fixed on the base (1), a revolving plate (8) pivoted and connected with the base (1) through a rotating shaft (9) of the revolving plate, wherein the revolving plate (8) is butted with a contact of the microswitch (11). The electromagnetic control part comprises a coil curl (4), a still iron core (2), a movable iron core (3) and a traction rod (7), wherein the coil curl is fixed on a coil bobbin, the still iron core and the movable iron core are arranged in the inner cavity of the coil curl (4), and the traction rod is connected with the movable iron core (3). The utility model is characterized in that the traction rod (7) is pivoted and connected with the base (1) through a rotating shaft (5) of the traction rod. The utility model is a releasing shaft for driving the circuit breaker, and the utility model has the advantages of larger releasing force and reliable operation.

Description

The shunt release of circuit breaker

Technical field

The utility model relates to a kind of shunt release that can carry out straighforward operation to circuit breaker.

Background technology

In the prior art, the shunt release of circuit breaker comprises base part and Electromagnetic Control part, described base part by pedestal, be fixed in sensitive switch on the pedestal, form with the finger plate that the pedestal phase pivot is connected by the finger plate rotating shaft, be with back-moving spring in the described finger plate rotating shaft, one end and the finger plate of this back-moving spring are inconsistent, the other end and pedestal are inconsistent, and described finger plate is against on the contact of sensitive switch; Described Electromagnetic Control partly comprises the coil that is fixed on the coil rack, the static iron core in the coil inner chamber, the moving iron core in the coil inner chamber, the draw bar that is connected with moving iron core.Because be that trip shaft by the moving circuit breaker of hook makes circuit breaker tripping, so tripping force is less, because shunt release is installed in the inside of circuit breaker, the temperature rise in the circuit breaker work will exert an influence to the performance of shunt release in addition.

Summary of the invention

The purpose of this utility model is to provide a kind of dependable performance, easy for installation, shunt release that tripping force is big.

The technical solution of the utility model is: a kind of shunt release of circuit breaker, comprise base part and Electromagnetic Control part, described base part by pedestal, be fixed in sensitive switch on the pedestal, form with the finger plate that the pedestal phase pivot is connected by the finger plate rotating shaft, be with back-moving spring in the described finger plate rotating shaft, one end and the finger plate of this back-moving spring are inconsistent, the other end and pedestal are inconsistent, and described finger plate is against on the contact of sensitive switch; Described Electromagnetic Control partly comprise the coil that is fixed on the coil rack, the static iron core in the coil inner chamber, the moving iron core in the coil inner chamber, with the draw bar that moving iron core is connected, described draw bar is connected with described pedestal phase pivot by the draw bar rotating shaft.

The utility model has the advantages that: because draw bar is connected with the pedestal phase pivot by the draw bar rotating shaft, therefore draw bar plays the effect of lever, the trip shaft that is used to control circuit breaker makes the traction rod end of circuit breaker tripping opposite with the direction of motion of moving iron core, therefore the utility model is the trip shaft that promotes circuit breaker, have bigger tripping force, use reliable.

Description of drawings

Accompanying drawing is structure master's cutaway view of the present utility model; Wherein:

[1], pedestal; [2], static iron core; [3], moving iron core; [4], coil; [5], draw bar rotating shaft; [6], back-moving spring; [7], draw bar; [8], finger plate; [9], finger plate rotating shaft; [10], back-moving spring; [11], sensitive switch; [12], insert buckle;

Embodiment

Referring to accompanying drawing, a kind of shunt release of circuit breaker, comprise base part and Electromagnetic Control part, described base part by pedestal [1], be fixed in sensitive switch [11] on the pedestal [1], form with the finger plate [8] that pedestal [1] phase pivot is connected by finger plate rotating shaft [9], be with back-moving spring [10] in the described finger plate rotating shaft [9], one end of this back-moving spring [10] and finger plate [8] are inconsistent, the other end and pedestal [1] are inconsistent, and described finger plate [8] is against on the contact of sensitive switch [11]; Described Electromagnetic Control partly comprises the coil [4] that is fixed on the coil rack, the static iron core [2] in coil [4] inner chamber, the moving iron core [3] in coil [4] inner chamber, the draw bar [7] that is connected with moving iron core [3], and described draw bar [7] is connected with described pedestal [1] phase pivot by draw bar rotating shaft [5].Be with back-moving spring [6] in the described draw bar rotating shaft [5], an end of described back-moving spring [6] and draw bar [7] are inconsistent, and the other end of back-moving spring [6] and pedestal [1] are inconsistent.Be fixed with the insertion buckle [12] of " U " shape on the described pedestal [1], described pedestal [1] with insert buckle [12] " U " shape end be connected.When circuit breaker is in off-state, the moving contact rack of circuit breaker drives finger plate [8] makes the contact of sensitive switch [11] be in off-state, thereby has cut off the power circuit of coil [4], at this moment, even external button energized, coil [4] also no current passes through; When circuit breaker is in closure state, its moving contact rack leaves finger plate [8], under the effect of back-moving spring [10], make the contact closure of sensitive switch [11], for straighforward operation is got ready, as long as press action button this moment, coil [4] energising drives draw bar [7], promotes the trip shaft of circuit breaker, make circuit breaker tripping, moving contact disconnects and cuts off once more the power circuit of coil [4].

Claims

1, a kind of shunt release of circuit breaker, comprise base part and Electromagnetic Control part, described base part by pedestal [1], be fixed in sensitive switch [11] on the pedestal [1], form with the finger plate [8] that pedestal [1] phase pivot is connected by finger plate rotating shaft [9], be with back-moving spring [10] in the described finger plate rotating shaft [9], one end of this back-moving spring [10] and finger plate [8] are inconsistent, the other end and pedestal [1] are inconsistent, and described finger plate [8] is against on the contact of sensitive switch [11]; Described Electromagnetic Control partly comprises the coil [4] that is fixed on the coil rack, the static iron core [2] in coil [4] inner chamber, the moving iron core [3] in coil [4] inner chamber, the draw bar [7] that is connected with moving iron core [3], and it is characterized in that: described draw bar [7] is connected with described pedestal [1] phase pivot by draw bar rotating shaft [5].

2, the shunt release of circuit breaker according to claim 1, it is characterized in that: be with back-moving spring [6] in the described draw bar rotating shaft [5], one end of described back-moving spring [6] and draw bar [7] are inconsistent, and the other end of back-moving spring [6] and pedestal [1] are inconsistent.

3, the shunt release of circuit breaker according to claim 1 is characterized in that: be fixed with the insertion buckle [12] of " U " shape on the described pedestal [1], described pedestal [1] with insert buckle [12] " U " shape end be connected.