CN201556587U - Extension terminals for universal circuit breakers - Google Patents

Abstract

The utility model relates to an extended terminal of a universal circuit breaker, which includes an auxiliary contact, a mounting frame, a contact mounting fixture and a bending plate rotation drive device, and the contact mounting fixture includes a bending plate and two The splint, the auxiliary contact is placed between the two splints, and the auxiliary contact and the two splints are positioned and connected between the two ends of the bent plate through the rotation axis, and the output end of the bent plate rotation drive device is connected to the bent plate. It can be seen that , the utility model hinges the auxiliary contact in the contact installation fixture, and drives the curved plate constituting the contact installation fixture to perform rotational movement, so as to realize the rotation of the auxiliary contact hinged at both ends of the curved plate, so as to achieve the auxiliary contact The purpose of conversion, thus it can be seen that the utility model is simple in structure, strong in versatility, easy to assemble and disassemble.

Description

Extension terminals for universal circuit breakers

technical field

The utility model relates to low-voltage electrical components and devices, in particular to an extended terminal used in conjunction with a universal circuit breaker. When the universal circuit breaker is closed or opened, the extended terminal outputs a conversion signal.

Background technique

At present, the auxiliary contacts of universal circuit breakers are generally composed of micro switches with switching points. The number of auxiliary contacts is generally four normally open and four normally closed contacts. The auxiliary contacts with switching points, when used by users, Only one group of normally open or normally closed contacts in a group of micro switches can be used, and the contact capacity is very small, which cannot meet the increasingly higher power consumption requirements.

Utility model content

The utility model aims at the deficiencies of the prior art, and provides the extended terminal of the universal circuit breaker, which can be externally connected to the universal circuit breaker on the basis of the standard auxiliary contact of the universal circuit breaker, so as to increase multiple normally open and/or Or normally closed contacts, and each additional set of contacts does not have an intermediate conversion point, which can realize various combinations according to the needs of users to meet people's ever-increasing electricity consumption requirements.

For realizing above technical purpose, the utility model will take following technical scheme:

An extended terminal of a universal circuit breaker, including an auxiliary contact, a mounting frame, a contact mounting fixture and a bent plate rotation drive device, the contact mounting fixture includes a curved plate and two splints respectively fixedly installed on the mounting frame, The auxiliary contact is placed between the two splints, and the auxiliary contact and the two splints are positioned and connected between the two ends of the bent plate through the rotating shaft, and the output end of the bent plate rotation driving device is connected with the bent plate.

The bending plate rotation driving device includes a power input device and an open-chain linkage mechanism connected between the output end of the power input device and the bending plate. The open-chain linkage mechanism includes a first connecting rod and a second connecting rod hinged to each other. The other end of the first connecting rod is connected with the bent plate, and the other end of the second connecting rod is connected with the power input device.

The power input device is a drive board.

Transversely placed transmission bearings are also connected between the second connecting rod and the power input device.

A second link limiting component is provided at the lower end of the second link, and the second link limiting component is a rod, and is fixedly installed on the mounting frame.

A second connecting rod resetting part is arranged between the transmission bearing and the second connecting rod, and the two ends of the second connecting rod resetting part are respectively connected with the second connecting rod and the mounting frame.

The second connecting rod resetting part is a spring.

According to the above technical scheme, the following beneficial effects can be achieved:

In the utility model, the auxiliary contact is hinged in the contact installation fixture, and the bending plate constituting the contact installation fixture is driven to rotate, so as to realize the rotation of the auxiliary contact hinged at both ends of the bending plate, so as to achieve the conversion of the auxiliary contact Therefore, it can be seen that the utility model has the advantages of simple structure, strong versatility, and convenient assembly and disassembly.

Description of drawings

Fig. 1 is the structural installation schematic diagram of the present utility model;

Fig. 2 is after removing baffle plate, the structural representation of the utility model;

Fig. 3 is after the baffle is removed, the front schematic view of the utility model;

Among them, the power input device 1 first connecting rod 2 second connecting rod 3 bent plate 4 installation frame 5 splint 6 auxiliary contact 7 rotating shaft 8 second connecting rod limiting part 9 transmission bearing 10 second connecting rod reset part 11 .

Detailed ways

The technical solution of the utility model will be described in detail below in conjunction with the accompanying drawings.

As shown in Figures 1 to 3, the extended terminal of the universal circuit breaker described in the utility model includes an auxiliary contact 7, a mounting frame 5, a contact mounting fixture and a bending plate rotation driving device, and the contact mounting fixture includes The curved plate 4 and the two splints 6 fixedly installed on the mounting frame 5 respectively, the auxiliary contact 7 is placed between the two splints 6, and the auxiliary contact 7 and the two splints 6 are positioned and connected to the curved plate 4 through the rotating shaft 8 Between the two ends, the output end of the bending plate rotation driving device is connected with the bending plate 4 .

The bending plate rotation driving device includes a power input device 1 and an open-chain linkage mechanism connected between the output end of the power input device 1 and the bending plate 4, and the open-chain linkage mechanism includes first connecting rods hinged to each other 2 and the second connecting rod 3, the other end of the first connecting rod 2 is connected with the bent plate 4, and the other end of the second connecting rod 3 is connected with the power input device 1, and the second connecting rod 3 is connected with the power input device 1 is also connected with a transmission bearing 10 placed horizontally. The power input device 1 used in the utility model is a drive plate, and the drive shaft on the circuit breaker drives the drive plate, and the power transmission is carried out through the transmission bearing 10 to drive the chain opening. The link mechanism operates to realize the conversion of the auxiliary contact 7.

The lower end of the second connecting rod 3 is provided with a second connecting rod limiting part 9, which is a rod, and it is fixedly installed on the mounting bracket 5, so that the second connecting rod 3 can be lifted. to the limiting effect.

A second connecting rod resetting part 11 is arranged between the transmission bearing 10 and the second connecting rod 3, and the two ends of the second connecting rod resetting part 11 are respectively connected with the second connecting rod 3 and the mounting frame 5, and the The reset part 11 of the second connecting rod is a spring, so the reset of the second connecting rod 3 can be realized.

Claims (7)

1. An extended terminal of a universal circuit breaker, characterized in that it includes an auxiliary contact, a mounting frame, a contact installation fixture and a bending plate rotation drive device, and the contact installation fixture includes a bending plate and is respectively fixed and installed on the installation The two splints on the frame, the auxiliary contact is placed between the two splints, and the auxiliary contact and the two splints are positioned and connected between the two ends of the bent plate through the rotating shaft, and the output end of the bent plate rotation drive device is connected to the bent plate . 2. The extended terminal of the universal circuit breaker according to claim 1, characterized in that, the bending plate rotation driving device includes a power input device and an open chain link connected between the output end of the power input device and the bending plate mechanism, the open-chain link mechanism includes a first link and a second link hinged to each other, the other end of the first link is connected to the bent plate, and the other end of the second link is connected to the power input device . 3. The extension terminal of the universal circuit breaker according to claim 2, wherein the power input device is a drive board. 4 . The extended terminal of the universal circuit breaker according to claim 2 , characterized in that, a transmission bearing placed transversely is also connected between the second connecting rod and the power input device. 5. The extended terminal of the universal circuit breaker according to claim 2 or 4, characterized in that, a second link limiting part is provided at the lower end of the second connecting rod, and the second link limiting part is a rod, And it is fixedly installed on the installation frame. 6. The extended terminal of the universal circuit breaker according to claim 2 or 4, characterized in that, a second link reset part is arranged between the transmission bearing and the second link, and the second link reset part The two ends are respectively connected with the second connecting rod and the installation frame. 7 . The extension terminal of the universal circuit breaker according to claim 6 , wherein the second connecting rod reset component is a spring.

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