CN210837584U

CN210837584U - Novel AC/DC auxiliary switch

Info

Publication number: CN210837584U
Application number: CN201922436471.8U
Authority: CN
Inventors: 董薪彤; 安维; 李益民
Original assignee: Shenyang Dongwu Electrical Equipment Co ltd
Current assignee: Liaoning Dongmu Electric Appliance Manufacturing Co ltd
Priority date: 2019-12-30
Filing date: 2019-12-30
Publication date: 2020-06-23
Anticipated expiration: 2029-12-30

Abstract

The utility model relates to a high voltage circuit breaking technical field discloses a novel AC/DC auxiliary switch, include front end housing and rear end cap through bolt fixed connection, front end housing and rear end cap form the structure chamber, install the base in the structure chamber, with the wiring structure that the base passes through the moving contact and is connected, the central point of base puts and is equipped with the rotation output shaft, be equipped with the cam on the output shaft, the relative both ends of cam and base lateral wall are supported and are connected first slider and second slider, the utility model discloses a through output shaft and external mechanical connection, drive the cam rotation when the output shaft rotates, and then promote the slider slip, realize the contact of moving, static contact; the requirements of customers for switching on the moving contact and the static contact according to the rotation of the output shaft are met by changing the position and the angle of the cam, the shapes of the cam and the static contact on the traditional rotating output shaft are changed, the auxiliary switch is smaller, and meanwhile, the shapes of the base, the moving contact and the static contact are changed, so that the purpose of unilateral wiring is achieved.

Description

Novel AC/DC auxiliary switch

Technical Field

The utility model relates to a high voltage circuit breaking technical field especially relates to a novel AC/DC auxiliary switch.

Background

The high-voltage circuit breaker is a key device for the operation of the power grid, and the auxiliary switch is an important element for ensuring the reliable operation of the high-voltage circuit breaker. The high-voltage circuit breaker is mainly installed in an operation box of the high-voltage circuit breaker, the miniaturization of the high-voltage circuit breaker and a matched small mechanism of the high-voltage circuit breaker is required on the premise of ensuring the performance along with the continuous development of the modern society, an auxiliary switch serving as a key component is required to be miniaturized on the premise of ensuring the performance and being convenient to install and maintain, and the existing auxiliary switch does not have the condition.

SUMMERY OF THE UTILITY MODEL

In view of the above, the present invention provides a novel ac/dc auxiliary switch, which is mechanically connected to an external device through an output shaft, when the output shaft rotates, the output shaft drives a cam to rotate, and further pushes a slider to slide, so as to realize the contact between a moving contact and a stationary contact; realize the customer's various according to the output shaft rotation switch-on sound head and the requirement of static contact through the position of change cam and angle, the utility model discloses change the shape of traditional cam and the static contact of rotating the output shaft, let auxiliary switch smaller and more exquisite, change the base simultaneously and move, the shape of static contact, reach the purpose of unilateral wiring. The utility model discloses both remain unilateral wiring and use more convenient function, it is more convenient in the installation is examined and repaired simultaneously, reached the miniaturized purpose of switch again.

The utility model discloses an above-mentioned technical problem is solved to following technical means:

the utility model relates to a novel AC/DC auxiliary switch, which comprises a front end cover and a rear end cover which are fixedly connected through bolts, the front end cover and the rear end cover form a structural cavity, a base and a wiring structure connected with the base through a moving contact are arranged in the structural cavity, a rotary output shaft is arranged at the center of the base, a cam is arranged on the output shaft, a first slide block and a second slide block are connected with two opposite ends of the cam and the side wall of the base in a butting way, the first sliding block and the second sliding block are both elastically abutted with the side wall of the base through springs, a first moving contact and a second moving contact are respectively connected with the two sides of the first sliding block and the second sliding block, the wiring structure comprises an inner short fixed contact and an inner long fixed contact which are respectively arranged on the same horizontal line with the first moving contact and the second moving contact, the inner short fixed contact is connected with an outer short fixed contact through a wire, and the inner long fixed contact is connected with an outer long fixed contact through a wire.

Further, the cam divide into and is the lug of different angles respectively with first slider and second slider butt, the one side of lug butt on slider and the cam is domatic.

Further, the outer short fixed contact and the outer long fixed contact are both connected with wiring screws.

Furthermore, a shaft pin penetrates through the output shaft.

The utility model has the advantages that: the utility model is mechanically connected with the outside through the output shaft, when the output shaft rotates, the cam is driven to rotate, and then the sliding block is pushed to slide, so that the contact of the moving contact and the static contact is realized; realize the customer's various according to the output shaft rotation switch-on sound head and the requirement of static contact through the position of change cam and angle, the utility model discloses change the shape of traditional cam and the static contact of rotating the output shaft, let auxiliary switch smaller and more exquisite, change the base simultaneously and move, the shape of static contact, reach the purpose of unilateral wiring. The utility model discloses both remain unilateral wiring and use more convenient function, it is more convenient in the installation is examined and repaired simultaneously, reached the miniaturized purpose of switch again.

Drawings

Fig. 1 is a schematic view of a base structure of a novel ac/dc auxiliary switch of the present invention;

fig. 2 is a top view of the novel ac/dc auxiliary switch of the present invention;

fig. 3 is a front view of the novel ac/dc auxiliary switch of the present invention;

the automatic switch comprises a rear support plate 1, a front support plate 2, a rear end cover 3, a front end cover 4, an output shaft 5, a shaft pin 6, a base 7, a number 8 plate, a cam 17, a first moving contact 21, a second moving contact 18, an outer short fixed contact 19, an inner short fixed contact 22, an inner long fixed contact 20, an outer long fixed contact 15, a first sliding block 16, a second sliding block 23, a spring 14 and a wiring screw 12.

Detailed Description

The invention will be described in detail with reference to the following drawings and specific embodiments:

as shown in fig. 1-3, the novel ac/dc auxiliary switch of the present invention comprises a front end cap 4 and a rear end cap 3 fixedly connected by a bolt, wherein the front end cap 4 and the rear end cap 3 form a structural cavity, a base 7 and a wiring structure connected with the base 7 by movable contacts are installed in the structural cavity, a rotating output shaft 5 is installed at the central position of the base 7, a cam 17 is installed on the output shaft 5, a first slider 16 and a second slider 23 are abutted to opposite ends of the cam 17 and a side wall of the base, the first slider 16 and the second slider 23 are both elastically abutted to the side wall of the base 7 by a spring, a first movable contact 21 and a second movable contact 18 are respectively connected to two sides of the first slider 16 and the second slider 23, the wiring structure comprises an inner short fixed contact 22 and an inner long fixed contact 20 which are respectively arranged on the same horizontal line with the first movable contact 21 and the second movable contact 18, the inner short fixed contact 22 is connected with an outer short fixed contact 19 through a wire, and the inner long fixed contact 20 is connected with an outer long fixed contact 15 through a wire.

In this embodiment, the cam 17 is divided into protruding blocks which are respectively abutted to the first slider 16 and the second slider 23 at different angles, and one surfaces of the first slider 16 and the second slider 23 abutted to the protruding blocks on the cam 17 are slope surfaces.

In this embodiment, the outer short fixed contact 19 and the outer long fixed contact 15 are both connected with a binding screw.

In this embodiment, a shaft pin 6 penetrates through the output shaft 5.

Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art will understand that the present invention can be modified or replaced with other embodiments without departing from the spirit and scope of the present invention, which should be construed as limited only by the appended claims. The technology, shape and construction parts which are not described in detail in the present invention are all known technology.

Claims

1. A novel AC/DC auxiliary switch is characterized in that: the connecting structure comprises a front end cover (4) and a rear end cover (3) which are fixedly connected through bolts, wherein the front end cover (4) and the rear end cover (3) form a structural cavity, a base (7) and a connecting structure connected with the base (7) through a movable contact are installed in the structural cavity, a rotating output shaft (5) is arranged at the center of the base (7), a cam (17) is arranged on the output shaft (5), a first sliding block (16) and a second sliding block (23) are connected with the side wall of the base (7) in an abutting mode at two opposite ends of the cam (17) in the abutting mode, the first sliding block (16) and the second sliding block (23) are both in elastic abutting mode with the side wall of the base (7) through springs (14), a first movable contact (21) and a second movable contact (18) are respectively connected with two sides of the first sliding block (16) and the second sliding block (23), and the connecting structure comprises an inner short static contact (22) and an inner static contact (18) which are respectively arranged The inner short fixed contact (22) is connected with an outer short fixed contact (19) through a lead, and the inner long fixed contact (20) is connected with an outer long fixed contact (15) through a lead.

2. The novel AC/DC auxiliary switch as claimed in claim 1, wherein: the cam (17) is provided with convex blocks which are in different angles and are respectively abutted against the first sliding block (16) and the second sliding block (23).

3. The novel AC/DC auxiliary switch as claimed in claim 1, wherein: the outer short static contact (19) and the outer long static contact (15) are both connected with wiring screws (12).

4. The novel AC/DC auxiliary switch as claimed in claim 1, wherein: the output shaft (5) is penetrated with a shaft pin (6).

5. The novel AC/DC auxiliary switch as claimed in claim 2, wherein: the first sliding block (16) and the second sliding block (23) are both slope surfaces on the surfaces abutted to the convex blocks on the cam (17).