CN210722729U

CN210722729U - Through-wall type totally-enclosed current transformer

Info

Publication number: CN210722729U
Application number: CN201921895423.9U
Authority: CN
Inventors: 姜绪礼; 耿荣华
Original assignee: Suzhou Lanxun Electrical Equipment Co Ltd
Current assignee: Suzhou Lanxun Electrical Equipment Co Ltd
Priority date: 2019-11-05
Filing date: 2019-11-05
Publication date: 2020-06-09
Anticipated expiration: 2029-11-05

Abstract

The utility model discloses a wall-through type totally-enclosed current transformer, which comprises a low-voltage insulator, wherein two fixing rings are sleeved at two ends above the low-voltage insulator, a mounting flange is arranged between the two fixing rings, two ends of the low-voltage insulator are provided with high-voltage insulators, one side of the fixing ring, which is close to the high-voltage insulator, is provided with a clamping groove, a clamping block is arranged inside the clamping groove, a connecting plate is fixed on the side wall of the clamping block, the connecting plate is fixedly connected with the fixing rings through first bolts, a dust cover is fixed at one side of the clamping block, which is far away from the clamping groove, and an umbrella skirt is; the utility model discloses at the periphery of original totally closed current transformer's of wall-penetrating formula low voltage insulator, add dust keeper, avoid in the use, during the dust falls into the recess between the full skirt on the low voltage insulator, the inconvenient work of clearing up in later stage.

Description

Through-wall type totally-enclosed current transformer

Technical Field

The utility model belongs to the technical field of electric power system high pressure measurement, concretely relates to totally closed current transformer of wall-penetrating type.

Background

The current transformer is an instrument for measuring by converting a large primary side current into a small secondary side current according to the electromagnetic induction principle. The current transformer is composed of a closed iron core and a winding. The primary side winding of the transformer has few turns and is connected in a circuit of the current to be measured.

The prior art has the following problems: 1. the existing wall-penetrating type totally-enclosed current transformer is provided with an umbrella skirt on a low-voltage insulator, so that the wall climbing distance of the surface of a product is increased, but grooves between the umbrella skirts become deeper gradually along the axial outer side, and dust falls into the grooves between the umbrella skirts in the using process, so that the cleaning work is inconvenient; 2. the periphery of a secondary wiring terminal in the existing through-wall type totally-enclosed current transformer is provided with a secondary wiring cover, the secondary wiring cover is directly connected through a bolt, but the secondary wiring cover is an independent individual, when the installation or disassembly operation is carried out, the secondary wiring cover needs to be taken from other places and then fixed, the secondary wiring cover needs to be placed at other places after the disassembly, and the installation or the disassembly is troublesome.

SUMMERY OF THE UTILITY MODEL

To solve the problems set forth in the background art described above. The utility model provides a totally closed current transformer of wall-penetrating type has dustproof, conveniently opens or closes the characteristics.

In order to achieve the above object, the utility model provides a following technical scheme: a wall-through type totally-enclosed current transformer comprises a low-voltage insulator, wherein fixing rings are sleeved at two ends above the low-voltage insulator, a mounting flange is arranged between the two fixing rings, high-voltage insulators are arranged at two ends of the low-voltage insulator, a clamping groove is formed in one side, close to the high-voltage insulator, of the fixing ring, a clamping block is arranged inside the clamping groove, a connecting plate is fixed on the side wall of the clamping block, the connecting plate is fixedly connected with the fixing rings through first bolts, a dustproof cover is fixed on one side, away from the clamping groove, of the clamping block, an umbrella skirt is arranged on the periphery of the high-voltage insulator, a primary wiring terminal is arranged on one side, away from the low-voltage insulator, of the high-voltage insulator, a through hole is formed in the position, corresponding, the periphery of secondary binding post is provided with the secondary wiring cover, through hinge connection between secondary wiring cover and the mounting flange, the one end that the hinge was kept away from to the secondary wiring cover is fixed with the fixed plate, through second bolt fixed connection between fixed plate and the mounting flange, just the below that is located the secondary wiring cover on the lateral wall of mounting flange is provided with the backup pad, one side that the secondary wiring cover was kept away from to the backup pad is fixed with a plurality of elasticity post, the one end that the backup pad was kept away from to the elasticity post is connected with the diaphragm.

Preferably, the connecting plate and the fixing ring are provided with threaded holes at positions corresponding to the first bolts.

Preferably, the connecting plate is fixedly connected with the clamping block and the dust cover is fixedly connected with the clamping block in a welding mode.

Preferably, the secondary wiring cover and the fixing plate are of an integrated structure.

Preferably, a rubber pad is arranged above the supporting plate.

Preferably, the transverse plate and the supporting plate are provided with insertion holes at positions corresponding to the elastic columns.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses at the periphery of original totally closed current transformer's of wall-penetrating formula low voltage insulator, add dust keeper, avoid in the use, during the dust falls into the recess between the full skirt on the low voltage insulator, the inconvenient work of clearing up in later stage.

2. The utility model discloses with the mode that directly sets up secondary wiring cover in the secondary binding post periphery through the bolt among the totally closed current transformer of original wall-piercing, the replacement is fixed secondary wiring cover on mounting flange through the hinge to add strutting arrangement on mounting flange, conveniently open or close secondary wiring cover, avoid need get secondary wiring cover or place secondary wiring cover in other places from other places when opening or closing secondary wiring cover.

Drawings

Fig. 1 is a front view of the present invention;

FIG. 2 is a cross-sectional view of the present invention taken along line A-A of FIG. 1;

FIG. 3 is an enlarged view of FIG. 1A according to the present invention;

fig. 4 is an enlarged view of fig. 1B according to the present invention.

In the figure: 1. a high voltage insulator; 2. an umbrella skirt; 3. installing a flange; 4. a low voltage insulator; 5. a clamping block; 6. a fixing ring; 7. a through hole; 8. a primary wiring terminal; 9. a dust cover; 10. a connecting plate; 11. a first bolt; 12. a card slot; 13. a hinge; 14. a transverse plate; 15. an elastic column; 16. a support plate; 17. a secondary wiring cover; 18. a secondary wiring terminal; 19. a second bolt; 20. and (7) fixing the plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides the following technical solutions: a wall-through type totally-enclosed current transformer comprises a low-voltage insulator 4, wherein fixing rings 6 are sleeved at two ends above the low-voltage insulator 4, an installation flange 3 is arranged between the two fixing rings 6, high-voltage insulators 1 are arranged at two ends of the low-voltage insulator 4, a clamping groove 12 is arranged at one side, close to the high-voltage insulator 1, of the fixing ring 6, a clamping block 5 is arranged inside the clamping groove 12, a connecting plate 10 is fixed on the side wall of the clamping block 5, the connecting plate 10 is fixedly connected with the fixing ring 6 through a first bolt 11, a dust cover 9 is fixed at one side, far away from the clamping groove 12, of the clamping block 5, an umbrella skirt 2 is arranged at the periphery of the high-voltage insulator 1, a primary wiring terminal 8 is arranged at one side, far away from the low-voltage insulator 4, a through hole 7 is arranged on the, the periphery of secondary binding post 18 is provided with secondary wiring cover 17, be connected through hinge 13 between secondary wiring cover 17 and the mounting flange 3, the one end that hinge 13 was kept away from to secondary wiring cover 17 is fixed with fixed plate 20, pass through second bolt 19 fixed connection between fixed plate 20 and the mounting flange 3, the below that just is located secondary wiring cover 17 on the lateral wall of mounting flange 3 is provided with backup pad 16, one side that secondary wiring cover 17 was kept away from to backup pad 16 is fixed with a plurality of elasticity post 15, the one end that backup pad 16 was kept away from to elasticity post 15 is connected with diaphragm 14.

In order to conveniently and fixedly connect the connecting plate 10 and the fixing ring 6 by the first bolt 11, in the present embodiment, it is preferable that threaded holes are provided on the connecting plate 10 and the fixing ring 6 at positions corresponding to the first bolt 11.

In order to fixedly mount the connecting plate 10 and the dust cover 9 on the fixture 5, in the present embodiment, preferably, the connecting plate 10 and the fixture 5 and the dust cover 9 and the fixture 5 are fixedly connected by welding.

In order to open or close the secondary wire housing 17, in the present embodiment, it is preferable that the secondary wire housing 17 is formed integrally with the fixing plate 20.

In order to avoid friction between the support plate 16 and the secondary wire cover 17, in the present embodiment, a rubber pad is preferably disposed above the support plate 16.

In order to connect the supporting plate 16 with the horizontal plate 14 through the elastic posts 15, in the present embodiment, it is preferable that the horizontal plate 14 and the supporting plate 16 are provided with insertion holes at positions corresponding to the elastic posts 15.

The utility model discloses a theory of operation and use flow: the utility model discloses in the draw-in groove 12 on fixing ring 6 is connected to fixture block 5 joint, rethread first bolt 11 is fixed to fixing ring 6 with connecting plate 10, thereby fix dust cover 9 to fixing ring 6 on, dust cover 9 can avoid the dust to fall into in the full skirt 2 on the low voltage insulator 4, rethread mounting flange 3 installs the position department that needs use with the device, take off second bolt 19, lose between fixed plate 20 and the mounting flange 3 and be connected, rethread hinge 13 rotates opens secondary wiring cover 17, backup pad 16 on the diaphragm 14 can hold secondary wiring cover 17, carry out the electrical and mechanical connection of once more generating line and secondary cable line, connect the completion back, rethread second bolt 19 fixes secondary wiring cover 17, avoid switching the secondary line and cause and steal the electric phenomenon.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a totally closed current transformer of wall-piercing, includes low voltage insulator (4), its characterized in that: the high-voltage insulator is characterized in that fixing rings (6) are sleeved at two ends of the upper portion of the low-voltage insulator (4), a mounting flange (3) is arranged between the two fixing rings (6), high-voltage insulators (1) are arranged at two ends of the low-voltage insulator (4), a clamping groove (12) is formed in one side, close to the high-voltage insulator (1), of each fixing ring (6), a clamping block (5) is arranged inside each clamping groove (12), a connecting plate (10) is fixed on the side wall of each clamping block (5), each connecting plate (10) is fixedly connected with each fixing ring (6) through a first bolt (11), a dust cover (9) is fixed on one side, far away from the clamping groove (12), of each clamping block (5), an umbrella skirt (2) is arranged on the periphery of each high-voltage insulator (1), and a primary wiring terminal (8) is, a through hole (7) is arranged on the dust cover (9) and at the position corresponding to the primary wiring terminal (8), a secondary wiring terminal (18) is fixed on the side wall of the mounting flange (3) close to the lower part, a secondary wiring cover (17) is arranged on the periphery of the secondary wiring terminal (18), the secondary wiring cover (17) is connected with the mounting flange (3) through a hinge (13), a fixing plate (20) is fixed at one end of the secondary wiring cover (17) far away from the hinge (13), the fixing plate (20) is fixedly connected with the mounting flange (3) through a second bolt (19), a supporting plate (16) is arranged on the side wall of the mounting flange (3) and below the secondary wiring cover (17), a plurality of elastic columns (15) are fixed on one side of the supporting plate (16) far away from the secondary wiring cover (17), one end of the elastic column (15) far away from the supporting plate (16) is connected with a transverse plate (14).

2. The wall-penetrating type totally-enclosed current transformer according to claim 1, characterized in that: and threaded holes are formed in the positions, corresponding to the first bolts (11), of the connecting plate (10) and the fixing ring (6).

3. The wall-penetrating type totally-enclosed current transformer according to claim 1, characterized in that: the connecting plate (10) is fixedly connected with the clamping block (5) and the dust cover (9) is fixedly connected with the clamping block (5) in a welding mode.

4. The wall-penetrating type totally-enclosed current transformer according to claim 1, characterized in that: the secondary wiring cover (17) and the fixing plate (20) are of an integrated structure.

5. The wall-penetrating type totally-enclosed current transformer according to claim 1, characterized in that: a rubber pad is arranged above the supporting plate (16).

6. The wall-penetrating type totally-enclosed current transformer according to claim 1, characterized in that: and the transverse plate (14) and the support plate (16) are provided with insertion holes at positions corresponding to the elastic columns (15).