CN216287839U

CN216287839U - Insulation assembly for current transformer

Info

Publication number: CN216287839U
Application number: CN202122289596.XU
Authority: CN
Inventors: 魏杰文
Original assignee: Shenyang Thorpe Transformer Co ltd
Current assignee: Shenyang Thorpe Transformer Co ltd
Priority date: 2021-09-22
Filing date: 2021-09-22
Publication date: 2022-04-12
Anticipated expiration: 2031-09-22

Abstract

The utility model relates to the technical field of current transformers, in particular to an insulation assembly for a current transformer, which comprises an insulation shell, wherein a transformer body is fixedly installed on the inner wall of the insulation shell, an installation ring is fixedly installed on the surface of the insulation shell, a positioning leg is fixedly connected to the surface of the installation ring, a limiting device for the positioning leg is arranged inside the installation ring, a limiting plate is slidably connected to the inner wall of the installation ring, a convex block is movably connected to the surface of the limiting plate, an adjusting ring is fixedly connected to one side, far away from the limiting plate, of the convex block, and the surface of the adjusting ring is in threaded connection with the inner wall of the installation ring. This current transformer is with insulating assemblies through setting up insulating casing, when the wiring, only needs run through insulating casing with the lead wire to through the stop lever to the lead wire fixed can, the staff need not contact binding post, through setting up adjustable ring and lug, can drive a plurality of limiting plates simultaneously and remove.

Description

Insulation assembly for current transformer

Technical Field

The utility model relates to the technical field of current transformers, in particular to an insulation assembly for a current transformer.

Background

The current transformer is an instrument for converting a large current on a primary side into a small current on a secondary side to measure according to an electromagnetic induction principle, the current transformer is composed of a closed iron core and a winding, a standard voltage transformer and a tested device can only be connected through a lead, a metal wire clamp at the starting end of the lead is installed on a wiring terminal of the standard voltage transformer or a booster during connection, and the metal wire clamp, the wiring terminal and a metal fastener are exposed through nuts or screws in compression joint. In view of this, we propose an insulation assembly for a current transformer.

SUMMERY OF THE UTILITY MODEL

The specification provides an insulation assembly for a current transformer.

The embodiment of the specification provides an insulation assembly for current transformer, including insulating casing, insulating casing's inner wall fixed mounting has the mutual-inductor body, insulating casing's fixed surface installs the collar, the fixed surface of collar is connected with location leg, the inside of collar is provided with the stop device of location leg, the inner wall sliding connection of collar has the limiting plate, the surperficial swing joint of limiting plate has the lug, one side fixedly connected with adjustable ring of limiting plate is kept away from to the lug, the surface of adjustable ring and the inner wall threaded connection of collar.

Preferably, the surface of the limiting plate is fixedly connected with a return spring, and one end, far away from the limiting plate, of the return spring is fixedly connected with the inner wall of the mounting ring.

Preferably, stop device includes the threaded rod, the surface of threaded rod and the inner wall threaded connection of collar, the one end of threaded rod runs through the surface of collar and fixedly connected with turning handle.

Preferably, one end of the threaded rod, which is far away from the rotating handle, is fixedly connected with a driving block, and the surface of the driving block is movably connected with a driven block.

Preferably, the surface of the driven block is connected with the inner wall of the positioning leg in a sliding mode, a telescopic rod is fixedly connected to one side, far away from the driving block, of the driven block, and the surface of the telescopic rod is connected with the inner wall of the positioning leg in a sliding mode.

Preferably, the surface of the telescopic rod is sleeved with a supporting spring, one end of the supporting spring is fixedly connected with the surface of the driven block, and the other end of the supporting spring is fixedly connected with the inner wall of the positioning leg.

According to the technical scheme, the insulation assembly for the current transformer provided by the embodiment of the specification at least has the following beneficial effects:

(1) this current transformer is with insulating assemblies, through setting up insulating casing, when the wiring, only need run through insulating casing with the lead wire to through the stop lever to the lead wire fixed can, the staff need not contact binding post, thereby avoided the danger of electric shock, through setting up adjustable ring and lug, can drive a plurality of limiting plates simultaneously and remove, and fix the position of limiting plate, make the operation more convenient.

(2) This current transformer is with insulating assembly through setting up stop device, is convenient for dismantle and fix the collar, and then is convenient for overhaul the collar, also makes the staff can dismantle or install the lead wire on the basis of contactless lead wire simultaneously, has further reduced the danger of electrocuteeing.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this application:

FIG. 1 is an external view of the overall structure of the present invention;

FIG. 2 is a cross-sectional view of an insulating housing according to the present invention;

FIG. 3 is a side view of a mounting ring of the present invention;

FIG. 4 is a cross-sectional view of a mounting ring of the present invention;

FIG. 5 is a schematic view of a position limiting device according to the present invention;

fig. 6 is a front view of a mounting ring of the present invention.

In the figure: 1. an insulating housing; 2. a transformer body; 3. a mounting ring; 4. positioning the legs; 5. a limiting device; 51. a threaded rod; 52. a handle is rotated; 53. a drive block; 54. a driven block; 55. a telescopic rod; 56. a support spring; 6. a limiting plate; 7. a bump; 8. an adjusting ring; 9. a return spring.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1 to fig. 6, a technical solution provided by the present invention is:

the utility model provides an insulating assembly for current transformer, includes insulating casing 1, and insulating casing 1's inner wall fixed mounting has mutual-inductor body 2, sets up the through wires mouth and the wiring mouth that suits with mutual-inductor body 2 on insulating casing 1, the installation of being convenient for running through and the lead wire of cable. The surface fixing of insulating casing 1 installs collar 3, and collar 3 is made by insulating material, and the fixed surface of collar 3 is connected with location leg 4, sets up the constant head tank that suits with location leg 4 on insulating casing 1 to set up the spacing groove that is linked together with the constant head tank. The inside of collar 3 is provided with stop device 5 of location leg 4, and the inner wall sliding connection of collar 3 has limiting plate 6, and limiting plate 6's surperficial swing joint has lug 7, and limiting plate 6's one side fixedly connected with adjustable ring 8 is kept away from to lug 7, the surface of adjustable ring 8 and the inner wall threaded connection of collar 3.

In this embodiment, limiting plate 6's fixed surface is connected with reset spring 9, and reset spring 9 keeps away from the one end of limiting plate 6 and the inner wall fixed connection of collar 3 for when limiting plate 6 was kept away from to lug 7, limiting plate 6 can be automatically to the motion in the 3 outsides of collar.

Further, the limiting device 5 comprises a threaded rod 51, the surface of the threaded rod 51 is in threaded connection with the inner wall of the mounting ring 3, one end of the threaded rod 51 penetrates through the surface of the mounting ring 3 and is fixedly connected with a rotating handle 52, and the rotating handle 52 is made of an insulating material.

Furthermore, a driving block 53 is fixedly connected to one end of the threaded rod 51 away from the rotating handle 52, a driven block 54 is movably connected to the surface of the driving block 53, and inclined planes are arranged on the surface of the driving block 53 and the surface of the driven block 54, so that when the driving block 53 moves, the driven block 54 can be pushed to move in the vertical direction.

It is worth noting that the surface of the driven block 54 is slidably connected with the inner wall of the positioning leg 4, the side of the driven block 54 far away from the driving block 53 is fixedly connected with an expansion link 55, the surface of the expansion link 55 is slidably connected with the inner wall of the positioning leg 4, and the expansion link 55 is adapted to the limiting groove in the insulating housing 1.

It is worth to be noted that a supporting spring 56 is sleeved on the surface of the telescopic rod 55, one end of the supporting spring 56 is fixedly connected with the surface of the driven block 54, and the other end of the supporting spring 56 is fixedly connected with the inner wall of the positioning leg 4.

When the lead wire fixing device is used, firstly, a lead wire penetrates through a through hole in the middle of the mounting ring 3, the adjusting ring 8 is rotated, the adjusting ring 8 drives the lug 7 to rotate, the limiting plate 6 is extruded towards the middle when the lug 7 rotates, after the limiting plate 6 fixes the lead wire tightly, the positioning leg 4 on the mounting ring 3 is aligned with the positioning groove in the insulating shell 1, the positioning leg 4 is inserted into the positioning groove, after the positioning leg 4 is inserted in place, the rotating handle 52 is rotated, the rotating handle 52 drives the threaded rod 51 to rotate, the threaded rod 51 moves towards the inside of the mounting ring 3 while rotating, the driving block 53 is driven to move, and the driving block 53 drives the driven block 54 to move towards the outer side of the positioning leg 4. The driven block 54 drives the telescopic rod 55 to move towards the outer side of the positioning leg 4, and finally the telescopic rod 55 enters a limiting groove in the insulating shell 1.

The above embodiments are only for illustrating the embodiments of the present invention and not for limiting the embodiments of the present invention, and those skilled in the art can make various changes and modifications without departing from the spirit and scope of the embodiments of the present invention, so that all equivalent technical solutions also belong to the scope of the embodiments of the present invention, and the scope of patent protection of the embodiments of the present invention should be defined by the claims.

Claims

1. An insulation assembly for a current transformer comprises an insulation shell (1), and is characterized in that: the inner wall fixed mounting of insulating casing (1) has mutual-inductor body (2), the fixed surface of insulating casing (1) installs collar (3), the fixed surface of collar (3) is connected with location leg (4), the inside of collar (3) is provided with stop device (5) of location leg (4), the inner wall sliding connection of collar (3) has limiting plate (6), the surperficial swing joint of limiting plate (6) has lug (7), one side fixedly connected with adjustable ring (8) of limiting plate (6) are kept away from in lug (7), the surface of adjustable ring (8) and the inner wall threaded connection of collar (3).

2. An insulation assembly for a current transformer according to claim 1, wherein: the surface of the limiting plate (6) is fixedly connected with a return spring (9), and one end, far away from the limiting plate (6), of the return spring (9) is fixedly connected with the inner wall of the mounting ring (3).

3. An insulation assembly for a current transformer according to claim 1, wherein: stop device (5) are including threaded rod (51), the surface of threaded rod (51) and the inner wall threaded connection of collar (3), the surface and the fixedly connected with turning handle (52) of collar (3) are run through to the one end of threaded rod (51).

4. An insulation assembly for a current transformer according to claim 3, wherein: one end of the threaded rod (51) far away from the rotating handle (52) is fixedly connected with a driving block (53), and the surface of the driving block (53) is movably connected with a driven block (54).

5. An insulation assembly for a current transformer according to claim 4, wherein: the surface of the driven block (54) is in sliding connection with the inner wall of the positioning leg (4), one side, far away from the driving block (53), of the driven block (54) is fixedly connected with a telescopic rod (55), and the surface of the telescopic rod (55) is in sliding connection with the inner wall of the positioning leg (4).

6. An insulation assembly for a current transformer according to claim 5, wherein: the surface of the telescopic rod (55) is sleeved with a supporting spring (56), one end of the supporting spring (56) is fixedly connected with the surface of the driven block (54), and the other end of the supporting spring (56) is fixedly connected with the inner wall of the positioning leg (4).