CN201804816U

CN201804816U - Residual current operated protective circuit breaker and operating device thereof

Info

Publication number: CN201804816U
Application number: CN2010205492512U
Authority: CN
Inventors: 张刘斗; 王农
Original assignee: ABB LV Installation Materials Co Ltd
Current assignee: ABB LV Installation Materials Co Ltd
Priority date: 2010-09-27
Filing date: 2010-09-27
Publication date: 2011-04-20
Anticipated expiration: 2020-09-27

Abstract

The utility model provides a residual current operated protective circuit breaker and an operating device thereof. The operating device comprises a first plate, a second plate, a third plate and a handle, wherein, the first plate is provided with a first hole; the second plate can slide relative to the first plate and is provided with a second hole; the third plate can slide relative to the first plate and the second plate and is provided with a third hole; and the handle extends into a channel composed of the first hole, the second hole and the third hole and can sequentially push the second plate and the third plate to slide relative to the first plate. The residual current operated protective circuit breaker provided with the operating device has compact structure, and can move flexibly, be conveniently assembled and disassembled and reliably meet the demand of safe operation outside various miniature circuit breaker boxes in the anti-explosion field.

Description

Aftercurrent action protecting circuit breaker and operating means thereof

Technical field

The utility model relates to the aftercurrent action protecting circuit breaker, more particularly, relates to the slide type operating means that is used for explosion-proof aftercurrent action protecting circuit breaker.

Background technology

Along with the intensified competition of low-voltage electrical industry, each Low-Voltage Switch Factory all constantly opening up self-market, increases the company's market share.In explosion-proof field,, need a kind of backup actuating device can assist to carry out case and control circuit breaker outward, especially leakage current action protection circuit breaker for the hidden danger that prevents that the circuit breaker arcing from causing.

Fig. 1 illustrates the component parts of existing aftercurrent action protecting circuit breaker (RCBO).As shown in Figure 1, aftercurrent action protecting circuit breaker 1 comprises residual current protecting (DDA) module 10 and common miniature circuit breaker (MCB) module 11.There is the out-of-alignment phenomenon in the handle 100 of DDA module with the handle 110 of MCB module; simultaneously because the needs of structure function and design principle; two parts handle is hung and is closed anglec of rotation difference; and after handle 100 pre-hungs that need the DDA module are closed; could reliably hang the handle 110 that closes MCB; explosion-proof tank locus in customers' place is limited in addition, thereby has caused for a long time, and the aftercurrent action protecting circuit breaker is difficult to be applied to explosion-proof field always.

The utility model content

According to an aspect of the present utility model, provide operating means.Operating means comprises: first plate has first hole on it; Can have second hole on it with respect to second plate of first plate slip; Can have the 3rd hole on it with respect to the 3rd plate of first plate and the slip of second plate; Handle, it stretches into the passage that is made of first hole, second hole and the 3rd hole and can promote second plate successively and the 3rd plate slides with respect to first plate.

According to another aspect of the present utility model, provide the aftercurrent action protecting circuit breaker.Comprise: casing; Operating means, this operating means comprises: first plate, have first hole on it, can be with respect to second plate of first plate slip, have second hole on it, can have the 3rd hole on it with respect to the 3rd plate of first plate and the slip of second plate, and handle, its stretch into the passage that is constituted by first hole, second hole and the 3rd hole and can promote second plate successively and the 3rd plate with respect to the first plate slip casing; Be equipped with the circuit breaker of second switch and the 3rd switch, it is arranged in the described casing; First plate is fixedly connected on the inboard of described casing; Second plate and the 3rd plate are arranged in the described casing; And handle stretches out casing by the hole of casing.

Be equipped with the compact conformation of the aftercurrent action protecting circuit breaker of aforesaid operations device, motion is flexible, and easy installation and removal, can realize the demand of the outer safety operation of various miniature circuit breaker casees in the explosion-proof field reliably.

Description of drawings

Fig. 1 illustrates the component parts of existing aftercurrent action protecting circuit breaker (RCBO);

Fig. 2 A and Fig. 2 B illustrate respectively according to the operating means of aftercurrent action protecting circuit breaker of the present utility model and each parts thereof;

Whole extensions that Fig. 3 A, Fig. 3 B and Fig. 3 C illustrate the starting stage, pre-stage of DDA module handle and a whole set of products that close according to operating means extension of the present utility model respectively close the stage three phases;

Fig. 4 A and Fig. 4 B are the schematic diagrames according to the different angles of the combination of second plate of operating means of the present utility model and the 3rd plate and DDA module handle and MCB module handle; With

Fig. 5 illustrates according to explosion-proof RCBO of the present utility model.

Embodiment

Fig. 2 A and Fig. 2 B illustrate respectively according to the operating means of aftercurrent action protecting circuit breaker of the present utility model and each parts thereof.Shown in Fig. 2 A and Fig. 2 B, operating means 2 comprises: first plate 20, second plate 21 that can slide with respect to first plate 20, the 3rd plate 22 and the handle 23 that can slide with respect to first plate 20 and second plate 21.On first plate 20, second plate 21 and the 3rd plate 22, have first hole 200, second hole 210 and the 3rd hole 220.Handle 23 stretches into the passage 24 that is made of first hole 200, second hole 210 and the 3rd hole 220 and can promote second plate 21 successively and the 3rd plate 22 slides with respect to first plate 20.

By the structure of aforesaid operations device, operational stroke is divided into two stages, promptly second plate 21 slides with respect to first plate 20 earlier, and second plate 21 and the 3rd plate 22 slide with respect to first plate 20 then.The handle pre-hung of corresponding DDA module of above-mentioned phase I is closed, and reliable extension of handle of corresponding DDA module of second stage and MCB closed, and finally reaches the outer safety operation of case and hangs the action of closing the RCBO dual-handle.The compact conformation of this utility model operating means, motion is flexible, and easy installation and removal, can realize the demand of the outer safety operation of various miniature circuit breaker casees in the explosion-proof field reliably.

Slide relative between first plate 20, second plate 21 and the 3rd plate 22 can realize by the chute structure.Specifically, open many second chutes 211 and the 3rd chute 221 at second plate 21 and the 3rd plate 22 upper edge glide direction A respectively.But the second riveting post 212 that is fixed on first plate 20 by second chute 211 that passes second plate 21 is connected second plate 21 with first plate, 20 slide relative ground; But and the 3rd riveting post 222 that is fixed on first plate by the 3rd chute 221 that passes the 3rd plate 22 is connected the 3rd plate 22 with first plate, 20 slide relative ground; Said structure also guarantees the slide relative between second plate 21 and the 3rd plate 22.

Whole extensions that Fig. 3 A, Fig. 3 B and Fig. 3 C illustrate the starting stage, pre-stage of DDA module handle and a whole set of products that close according to operating means extension of the present utility model respectively close the stage three phases.As shown in Figure 3A, handle 23 stretches into the part of passage 24, and the pin of taking advantage of a situation rotation can promote second plate 21 and the 3rd plate 22 successively and slide with respect to first plate 20.Shown in Fig. 3 B, in the phase I, direction A along slide relative, the distance D 1 of the cylindrical bar of handle 23 and second hole, 210 inner edges along with the 3rd plate 22 with respect to first plate 20 along A to the slip vanishing, this moment handle 23 cylindrical bar and second hole, 210 inner edges and the 3rd hole 220 inner edges tangent contact the simultaneously, thereby make the individual angle of DDA module handle pre-hung unification.Shown in Fig. 3 C, in second stage, handle 23 continues to turn clockwise, the cylindrical bar of handle 23 can promote second hole, 210 inner edges and the 3rd hole 220 inner edges simultaneously, utilize the principle of cam, make simultaneously relative first plate 20 of second plate 21 and the 3rd plate 22 along A to translation gliding, second plate 21 continues to promote the angle that 30 rotations of DDA module handles need, simultaneously the 3rd plate 22 promotes the angle that 31 rotations of MCB module handles need, and hangs simultaneously until DDA module handle 30 and MCB module handle 31 and closes.

When RCBO tripped owing to leakage current, DDA module handle 30 and MCB module handle 31 meeting promotion second plates 21 and the 3rd plate 22 returned to the original position of hanging before closing with respect to the reverse slide of first plate 20 along A, play the leakage current protective effect.

When RCBO causes the MCB module to thread off tripping operation owing to overload or short circuit, second plate 21 of the cam 230 meeting promotion operating means 2 of the handle 23 of MCB end and the 3rd plate 22 are along the reverse slide of A, second plate 21 retreats into the original position of hanging before closing, and retreating into 30 pre-hungs of DDA module handle, the 3rd plate 22 closes the position, when reaching normal extension, closes when requiring in electric current, can operation panel outer operating grip is hung the MCB module of closing RCBO again.

Fig. 4 A and Fig. 4 B are the schematic diagrames according to the different angles of the combination of second plate of operating means of the present utility model and the 3rd plate and DDA module handle and MCB module handle.Shown in Fig. 4 A and Fig. 4 B, first plate 20, second plate 21 and the 3rd plate 22 are arranged in order, and with respect to second plate 21, handle 23 is fixedly connected on the opposite side of first plate 20.Second tentacle 40 and the 3rd tentacle 41 stretch out from second plate 21 and the 3rd plate 22 respectively, the 3rd plate 22 also has the 4th hole 42, second tentacle 40 stretches out with vertical with glide direction A basically direction from the 4th hole 42, and the 3rd tentacle 41 stretches out with vertical with glide direction basically direction.Second tentacle 40 and the 3rd tentacle 41 promote DDA module handle 30 and MCB module handle 31 (second switch and the 3rd switch) successively with the slip of second plate 21 and the 3rd plate 22 respectively.

As a kind of variant, second plate and the 3rd plate also can be changed arrangement position, that is: first plate, the 3rd plate and second plate are arranged in order and with respect to the 3rd plate, described handle is fixedly connected on the opposite side of first plate.Correspondingly, second plate also has the 4th hole, and the 3rd tentacle stretches out with vertical with glide direction basically direction from the 4th hole; And second tentacle stretches out with vertical with glide direction basically direction.

Fig. 5 illustrates according to explosion-proof RCBO of the present utility model.As shown in Figure 5, explosion-proof RCBO5 comprises: explosion-proof casing 51, be arranged in the outfit DDA module handle 30 in the explosion-proof casing 51 and the DDA module 52 and the MCB module 53 of MCB module handle 31, first plate 20 is fixedly connected on the inboard of explosion-proof casing 51, second plate 21 and the 3rd plate 22 that are positioned at first plate, 20 homonymies are arranged in explosion-proof casing 51, and handle 23 stretches out explosion-proof casing 51 by the hole 510 of explosion-proof casing 51.The operator can be converted into the rotational trajectory of handle 23 by operating means 2 the translation track of vertical handle 23 axis in the outside of explosion-proof RCBO, and the cam structure by operating means, with operational stroke be divided into two the stage-DDA module handle preferential pre-hung stage and MCB module handle hang and close the stage, finally reach the outer safety operation of case and hang the action of closing the RCBO dual-handle, the compact conformation of this utility model operating means, motion flexibly, and easy installation and removal can realize the demand of the outer safety operation of various miniature circuit breaker casees in the explosion-proof field reliably.

Though illustrate and described the utility model with reference to some preferred embodiment of the present utility model, but it will be appreciated by those skilled in the art that, do not deviating under the situation of the spirit and scope of the present utility model that limit by appended claims, can make various variations to it in the form and details.

Claims

1. operating means is characterized in that comprising:

First plate has first hole on it;

Can have second hole on it with respect to second plate of first plate slip;

Can have the 3rd hole on it with respect to the 3rd plate of first plate and the slip of second plate; With

Handle, it stretches into the passage that is made of first hole, second hole and the 3rd hole and can promote second plate successively and the 3rd plate slides with respect to first plate.

2. operating means as claimed in claim 1 is characterized in that:

At first state, along the direction of described slide relative, the distance of the described handle and the second hole inner edge is less than the distance of described handle and the 3rd hole inner edge; And

At second state, described handle contacts with the 3rd hole inner edge with the second hole inner edge simultaneously.

3. operating means as claimed in claim 1 is characterized in that:

Second tentacle and the 3rd tentacle that stretches out from second plate and the 3rd plate respectively, the slip with second plate and the 3rd plate promotes second switch and the 3rd switch successively respectively.

4. operating means as claimed in claim 1 is characterized in that:

Described handle is fixedlyed connected with first plate; And

The part that described handle stretches into described passage is a cam, and it can promote second plate successively and the 3rd plate slides with respect to first plate.

5. operating means as claimed in claim 1 is characterized in that also comprising:

Many second chutes in the described glide direction in the second plate upper edge;

Pass described many second chutes respectively and be fixed on a plurality of second riveting posts on first plate;

Many articles the 3rd chutes in the described glide direction in the 3rd plate upper edge;

Pass described many articles the 3rd chutes respectively and be fixed on a plurality of the 3rd riveting posts on first plate.

6. operating means as claimed in claim 3 is characterized in that:

First plate, second plate and the 3rd plate are arranged in order; And

With respect to second plate, described handle is fixedly connected on the opposite side of first plate.

7. operating means as claimed in claim 3 is characterized in that:

First plate, the 3rd plate and second plate are arranged in order; And

With respect to the 3rd plate, described handle is fixedly connected on the opposite side of first plate.

8. operating means as claimed in claim 6 is characterized in that:

The 3rd plate also has the 4th hole, and second tentacle stretches out with vertical with glide direction basically direction from the 4th hole; And

The 3rd tentacle stretches out with vertical with glide direction basically direction.

9. operating means as claimed in claim 7 is characterized in that:

Second plate also has the 4th hole, and the 3rd tentacle stretches out with vertical with glide direction basically direction from the 4th hole; And

Second tentacle stretches out with vertical with glide direction basically direction.

10. aftercurrent action protecting circuit breaker is characterized in that comprising:

Casing;

Operating means, this operating means comprises:

First plate has first hole on it;

Can have second hole on it with respect to second plate of first plate slip;

Handle, its stretch into the passage that is constituted by first hole, second hole and the 3rd hole and can promote second plate successively and the 3rd plate with respect to the first plate slip casing;

Be equipped with the circuit breaker of second switch and the 3rd switch, it is arranged in the described casing;

First plate is fixedly connected on the inboard of described casing;

Second plate and the 3rd plate are arranged in the described casing; And

Described handle stretches out casing by the hole of casing.