CN216749706U

CN216749706U - Isolating switch

Info

Publication number: CN216749706U
Application number: CN202220072750.XU
Authority: CN
Inventors: 黄雷; 龙亚奇; 吴兆意; 李春华
Original assignee: Kenjin Group Co ltd
Current assignee: Kenjin Group Co ltd
Priority date: 2022-01-12
Filing date: 2022-01-12
Publication date: 2022-06-14
Anticipated expiration: 2032-01-12

Abstract

The utility model discloses an isolating switch main beam with isolation and an isolating switch. The technical scheme adopted comprises the following steps: the main beam body, main beam body one end is equipped with a set of interval arrangement's contact mounting groove, and corresponds contact mounting groove both sides integrated into one piece has the baffle. The advantages are as follows: 1. through the design of the contact mounting groove and the partition plate of the main beam, the contacts are more stable after being mounted, and the contacts are spaced to prevent electric arcs; 2. the upper and lower main beams are universal, so that the production and installation are more convenient; 3. the circuit breaker can also be suitable for a load switch or a circuit breaker.

Description

Isolating switch

Technical Field

The utility model relates to an isolating switch.

Background

An Isolating switch (Isolating switch) is mainly used on an environment-friendly cabinet, is a switch device which is used for Isolating a power supply and switching over, is used for connecting and cutting off a small current circuit and has no arc extinguishing function. When the isolating switch is in the separated position, the contacts have insulation distance meeting the specified requirements and obvious disconnection marks; a switching device capable of carrying current in normal loop conditions and current in abnormal conditions (e.g., short circuit) for a specified period of time when in the closed position. The high-voltage isolating switch is generally used as a high-voltage isolating switch, namely an isolating switch with rated voltage of more than 1kV, the high-voltage isolating switch has a simple working principle and structure, but has high requirements on working reliability due to large usage amount, and has large influence on the design, establishment and safe operation of a substation and a power plant.

The conventional disconnecting switch structure includes: the main shaft is provided with a group of crank arms, one ends of the crank arms are connected with moving contacts, the upper end and the lower end of the frame side plate are respectively provided with a main beam, and the moving contacts are arranged on the main beam corresponding to the upper fixed contact of the main beam at the upper end and the main beam corresponding to the lower end. The main beam structure is usually made of U-shaped section bars, the structure is single, the stability of the contacts after installation is poor, no isolation exists between the contacts, and electric arcs are easily generated between the contacts.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an isolating switch which is stable in structure and has an isolated contact.

In order to solve the above problems, the technical scheme adopted by the utility model comprises: the frame curb plate that sets up relatively and connect in main shaft, ground contact installation roof beam between the frame curb plate, be equipped with a set of turning arm on the main shaft, turning arm one end is connected with the moving contact, isolator girder, its characterized in that are installed respectively at the upper and lower both ends of frame curb plate: the isolating switch main beam comprises a main beam body, one end of the main beam body is provided with a group of contact mounting grooves which are arranged at intervals, a partition plate is integrally formed on two sides of each contact mounting groove, a fixed contact is mounted in the contact mounting groove of the isolating switch main beam corresponding to the upper end, the other end of the moving contact is mounted in the contact mounting groove of the isolating switch main beam corresponding to the lower end, and the height and the width of the partition plate are larger than those of the fixed contact mounted in the contact mounting groove.

The isolating switch is characterized in that: a group of first screw holes are formed in the contact mounting groove of the main beam body.

The isolating switch is characterized in that: and a through hole which penetrates through the main beam body from top to bottom is formed in the contact mounting groove of the main beam body.

The isolating switch is characterized in that: a set of second screw holes is arranged at the left end and the right end of the main beam body.

The isolating switch is characterized in that: the two sides of the partition board are integrally formed with first reinforcing ribs.

The isolating switch is characterized in that: a set of second reinforcing ribs is arranged at the front end and the rear end of the main beam body.

The isolating switch is characterized in that: the girder body includes integrated into one piece's bottom plate, preceding curb plate, posterior lateral plate, left side board, right side board and connect in a set of third strengthening rib of bottom plate, preceding curb plate, posterior lateral plate, left side board, right side board.

The isolating switch is characterized in that: and a protective cover capable of covering the crank arm and the moving contact is arranged on one side of the frame side plate.

The isolating switch of the utility model has the following advantages: 1. through the design of the contact mounting groove and the partition plate of the main beam, the contacts are more stable after being mounted, and the contacts are spaced to prevent electric arcs; 2. the upper and lower main beams are universal, so that the production and installation are more convenient; 3. the circuit breaker can also be suitable for a load switch or a circuit breaker.

The utility model is further described below with reference to the accompanying drawings.

Drawings

FIG. 1 is a schematic structural view of the main beam of the isolator switch of the present invention, showing a frontal configuration;

FIG. 2 is a schematic structural view of the main beam of the isolator switch of the present invention, showing the bottom structure;

FIG. 3 is a cross-sectional view of the isolator main beam of the present invention;

fig. 4 is a schematic view of the assembly between the main beam and the fixed contact of the isolating switch of the utility model;

FIG. 5 is a schematic diagram of the structure of the isolating switch of the present invention;

fig. 6 is a schematic structural diagram of the disconnecting switch with the protective cover according to the utility model.

Detailed Description

Referring to fig. 1 to 6, the disconnecting switch of the present invention includes frame side plates 16 disposed opposite to each other, a main shaft 17 connected to the middle of the frame side plates 16, and a ground contact mounting beam 18 connected to the bottom of the

frame side plates

16, and 3 ground contacts 23 arranged at intervals are mounted on the ground contact mounting beam. The main shaft 17 is a hexagonal shaft, 3 crank arms 19 are arranged on the main shaft at intervals, and one end of each crank arm 19 is connected with a movable contact 20. And the upper end and the lower end of the frame side plate 16 are respectively provided with an isolating switch main beam a through a screw rod. The isolating switch main beam a comprises an insulating main beam body 1, and the whole main beam body 1 is square. The lower extreme of girder body 1 (for the upper end when installing isolator's bottom) is equipped with 3 interval arrangement's contact mounting groove 2, and corresponds 2 both sides integrated into one piece of contact mounting groove have baffle 3. The width of the contact mounting groove 2 is matched with the wiring row 22 at the upper end of the static contact 4, the static contact 4 is mounted in the contact mounting groove 2 corresponding to the main beam a of the isolating switch at the upper end, and the static contact 4 is fixed through a screw rod. The other end of the movable contact 20 is installed in the contact mounting groove 2 corresponding to the main beam a of the isolating switch at the lower end, and the movable contact 20 is also fixed through a screw rod. The height and the width of the partition board 3 are both larger than those of the static contact 4 installed in the contact installation groove 2, ideally larger than 1/3, so as to achieve the best isolation effect.

Preferably, be equipped with 4 first screw holes 5 in the contact mounting groove 2 of girder body 1, carry out screwed connection through first screw hole 5 and static contact 4, both ends are equipped with 4 second screw holes 7 about girder body 1, through second screw hole 7 carries out screwed connection with isolator's frame curb plate to convenient installation and fixed.

Preferably, a through hole 6 penetrating up and down is arranged in the contact mounting groove 2 of the main beam body 1 so as to improve the heat dissipation effect of the contact.

Preferably, the main beam body 1 includes a bottom plate 10, a front side plate 11, a rear side plate 12, a left side plate 13, a right side plate 14, and a set of third reinforcing ribs 15 connected to the bottom plate 10, the front side plate 11, the rear side plate 12, the left side plate 13, and the right side plate 14. The third reinforcing ribs 15 are in a mesh shape. And first reinforcing ribs 8 are integrally formed on two sides of the partition plate 3. And a group of second reinforcing ribs 9 are arranged on the main beam body 1 corresponding to the front side plate 11 and the rear side plate 12. The girder body 1 structure realized through the structure has the advantages of high strength and lightness.

Preferably, a protective cover 21 capable of covering the crank arm 19 and the movable contact 20 is arranged on one side of the frame side plate 16, and the protective cover 21 plays a role in protecting the crank arm 19 and the movable contact 20.

Although the present invention has been described with reference to the above embodiments, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the scope of the present invention.

Claims

1. The utility model provides an isolator, including relative frame curb plate (16) that sets up and connect in main shaft (17), ground contact installation roof beam (18) between frame curb plate (16), be equipped with a set of turning arm (19) on main shaft (17), turning arm (19) one end is connected with moving contact (20), isolator girder (a), its characterized in that are installed respectively at the upper and lower both ends of frame curb plate (16): the isolating switch main beam (a) comprises a main beam body (1), one end of the main beam body (1) is provided with a group of contact mounting grooves (2) which are arranged at intervals, a partition plate (3) is integrally formed on two sides of each contact mounting groove (2), a fixed contact (4) is installed in each contact mounting groove (2) of the isolating switch main beam (a) corresponding to the upper end, the other end of each movable contact (20) is installed in each contact mounting groove (2) of the isolating switch main beam (a) corresponding to the lower end, and the height and the width of each partition plate (3) are larger than the height and the width of each fixed contact (4) installed in each contact mounting groove (2).

2. The isolating switch of claim 1, wherein: a group of first screw holes (5) are arranged in the contact mounting groove (2) of the main beam body (1).

3. The isolating switch of claim 1, wherein: and a through hole (6) which penetrates through the main beam body from top to bottom is formed in the contact mounting groove (2) of the main beam body (1).

4. The isolating switch of claim 1, wherein: a set of second screw holes (7) are arranged at the left end and the right end of the main beam body (1).

5. The isolating switch of claim 1, wherein: and first reinforcing ribs (8) are integrally formed on two sides of the partition plate (3).

6. The isolating switch of claim 1, wherein: a group of second reinforcing ribs (9) are arranged at the front end and the rear end of the main beam body (1).

7. The isolating switch of claim 1, wherein: the girder body (1) comprises a bottom plate (10), a front side plate (11), a rear side plate (12), a left side plate (13), a right side plate (14) which are integrally formed, and a group of third reinforcing ribs (15) connected to the bottom plate (10), the front side plate (11), the rear side plate (12), the left side plate (13) and the right side plate (14).

8. The isolating switch of claim 1, wherein: and a protective cover (21) capable of covering the crank arm (19) and the moving contact (20) is arranged on one side of the frame side plate (16).