CN220439348U

CN220439348U - Anti-interference current transformer

Info

Publication number: CN220439348U
Application number: CN202322040687.9U
Authority: CN
Inventors: 袁亚轩
Original assignee: Henan Riyao Electric Co ltd
Current assignee: Henan Riyao Electric Co ltd
Priority date: 2023-08-01
Filing date: 2023-08-01
Publication date: 2024-02-02
Anticipated expiration: 2033-08-01

Abstract

The utility model relates to the technical field of protection of current transformers, in particular to an anti-interference current transformer which comprises a shell, a winding and connecting guide wires, wherein the winding is assembled in the shell, the connecting guide wires are assembled and connected to the side edges of the winding, the connecting guide wires are assembled on two sides of the shell in a clamping mode, a maintenance structure is arranged outside the shell, a connecting structure is arranged on the side edges of the shell, the maintenance structure comprises an assembly base, the assembly base is fixed at the bottom of the shell, an assembly ring is arranged on the upper portion of the side edge of the assembly base, a maintenance cover is inserted at the top of the assembly ring, the maintenance cover is completely covered outside the shell, the connecting structure comprises an inner mounting plate and an outer mounting plate, and the inner mounting plate and the outer mounting plate are assembled on the surface of the side wall of the shell through connecting screws. The utility model is convenient for the maintenance and assembly of the cover of the transformer, so that the operation and the use are more convenient, and the interference of the external environment and foreign matters is avoided.

Description

Anti-interference current transformer

Technical Field

The utility model relates to the technical field of protection of current transformers, in particular to an anti-interference current transformer.

Background

Along with the continuous development of technology, instrument equipment during the electric power use conversion is also more and more, current transformer is as one of them application wide, it adopts electromagnetic induction principle, convert heavy current to lower current through winding etc. so that secondary equipment such as protection, control and measurement uses, the conversion transfer device of importance, it can not avoid having different interference to have when in actual use, the interference kind is numerous, such as electromagnetic interference, voltage current fluctuation interference, and external environment foreign matter interference, along with the continuous development of technology, anti-electromagnetic interference and voltage current etc. circuit designs and basic optimization such as rectifying filter, but during the actual use is difficult to avoid the interference of external environment and foreign matter, current transformer is inconvenient to carry out the maintenance cover and establishes the protection when the assembly, the steady use of current transformer is influenced, for example the current transformer of the authority of the utility model disclosure of publication number CN214012668U, the current transformer field is related to, including first shell and second shell, first shell and second shell symmetrical distribution, the lateral middle part that first shell and second shell are close to each other has offered the standing groove, the standing groove has been set up for the second shell, the bottom plate is provided with the bottom plate is fixed to the bottom plate. According to the utility model, the L-shaped connecting blocks are arranged at the bottoms of the first shell and the second shell, and are connected with the bottom plate through the limiting sliding grooves, so that the first shell and the second shell are convenient to assemble, disassemble and maintain, the placing box is limited on the first shell and the second shell through the connecting components between the placing box and windings on the iron core, and the placing box is convenient to disassemble and replace through the locating plate and the locating grooves, therefore, the current transformer device can basically meet the demands of people, but still has some problems.

The prior device comprises: the maintenance protection is not convenient to carry out during assembly, and the stable use of the current transformer is affected. There is a need for a current transformer with interference immunity.

Disclosure of Invention

The utility model aims to provide a current transformer with anti-interference function, which solves the problems of the prior device proposed in the background art: the maintenance cover is inconvenient to set and protect during assembly, and the stable use of the current transformer is affected.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a current transformer with anti-interference, includes casing, winding and connects the guide wire, the inside assembly of casing is provided with the winding, the winding side assembly is connected with connects the guide wire, connect the guide wire card to establish the assembly in the casing both sides, the casing outside is provided with maintains the structure, the casing side is provided with and connects the dress structure, it includes the assembly base to maintain the structure, the assembly base is fixed in the casing bottom, assembly base side upper portion is provided with the assembly circle, the assembly circle top is inserted and is equipped with the maintenance cover, the maintenance cover covers completely and establishes outside the casing.

Preferably, the assembly ring and the assembly base are assembled and fixed through the assembly screw, the side edge of the assembly ring is arc-shaped, the top of the assembly ring is provided with a slot corresponding to the bottom of the maintenance cover, the two sides of the maintenance cover are provided with an inlet and an outlet, the side edge of the assembly base is internally provided with an assembly hole, and a supporting pad is glued at the concave part of the bottom of the assembly base.

Preferably, the upper side edge of the assembly ring is provided with a limiting clamping tongue in a clamping way, the side edge of the limiting clamping tongue is fixedly provided with a sliding rod, the sliding rod penetrates through and is arranged on the side wall of the lower end of the maintenance cover, the side edge of the upper part of the assembly ring is provided with a clamping groove corresponding to the limiting clamping tongue, and the inner side wall of the lower part of the maintenance cover is provided with a storage groove corresponding to the limiting clamping tongue.

Preferably, the outer end cover of slide bar is equipped with the auxiliary frame, the auxiliary frame is fixed at maintenance guard shield lower part outer wall, the slide bar middle part is fixed with the piece that supports, be provided with the spring between supporting piece and the auxiliary frame inner wall, the spring housing is established in the slide bar outside, the slide bar is kept away from the one end of spacing block tongue and is fixed with the pull ring.

Preferably, the connection structure comprises an inner mounting plate and an outer mounting plate, the inner mounting plate and the outer mounting plate are mounted on the surface of the side wall of the shell through connection screws, the inner mounting plate is located between the outer mounting plate and the side wall of the shell, an inner connecting piece and a binding post are arranged inside the inner mounting plate and the outer mounting plate, the side end of the binding post is sleeved with the side end of the inner connecting piece, the inner connecting piece is inserted inside the inner mounting plate, one end, far away from the binding post, of the inner connecting piece is connected with the side end of a guide wire through a wire, the binding post penetrates through and is arranged on the side wall of the outer mounting plate, a binding nut is sleeved with the outer end screw of the binding post, and a gasket is arranged between the two groups of binding nuts.

Preferably, the outer wall side of the outer assembly plate is fixed with a telescopic sleeve, one end of the telescopic sleeve, which is far away from the outer assembly plate, is fixed with an elastic ring, and the telescopic sleeve is in a stretchable conical shape.

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

this current transformer with anti-interference is provided with maintains the structure, under the assembly of assembly base and assembly circle, is convenient for establish the assembly to the cover of maintenance guard shield for the casing is convenient for maintain when using the assembly, avoids the interference of external environment and foreign matter, makes to use more stable convenient, through this design, has improved current transformer's convenience and practicality.

This current transformer with anti-interference is provided with connects dress structure, under the assembly of interior board and outer assembly plate, the wiring guide assembly of the butt joint guide line side of being convenient for the operation is more convenient, is convenient for simultaneously make the butt joint department be convenient for change maintenance, makes follow-up use more convenient, through this design, has improved current transformer's convenience and practicality.

Drawings

FIG. 1 is a schematic elevational cross-sectional view of the structure of the present utility model;

FIG. 2 is a schematic side cross-sectional view of the structure of the present utility model;

FIG. 3 is a schematic top view of the structure of the present utility model;

FIG. 4 is an enlarged schematic view of the structure A in FIG. 1 according to the present utility model;

FIG. 5 is an enlarged schematic view of the structure of FIG. 1B according to the present utility model;

in the figure: 111. a housing; 112. a winding; 113. connecting a guide wire; 2. maintaining the structure; 211. assembling a base; 212. assembling the ring; 213. a maintenance cover; 214. assembling a screw; 215. a slot; 216. an inlet and an outlet; 217. a support pad; 218. a fitting hole; 219. a limit clamping tongue; 220. a slide bar; 221. a clamping groove; 222. a storage groove; 223. an auxiliary frame; 224. pressing the sheet; 225. a spring; 226. a pull ring; 3. a mounting structure; 311. an inner plate; 312. an outer assembly plate; 313. installing a screw; 314. an inner connecting piece; 315. binding posts; 316. a terminal nut; 317. a gasket; 318. a telescopic sleeve; 319. an elastic ring.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-5, an embodiment of the present utility model is provided:

the current transformer with the anti-interference function comprises a shell 111, a winding 112 and a connecting guide wire 113, wherein the winding 112 is assembled and arranged in the shell 111, the connecting guide wire 113 is assembled and connected to the side edge of the winding 112, the connecting guide wire 113 is clamped and assembled on two sides of the shell 111, a maintenance structure 2 is arranged outside the shell 111, a connecting structure 3 is arranged on the side edge of the shell 111, the maintenance structure 2 comprises an assembly base 211, the assembly base 211 is fixed at the bottom of the shell 111, an assembly ring 212 is arranged at the upper part of the side edge of the assembly base 211, a maintenance cover 213 is inserted at the top of the assembly ring 212, and the maintenance cover 213 is completely covered outside the shell 111;

the assembly ring 212 and the assembly base 211 are assembled and fixed through the assembly screw 214, the side edge of the assembly ring 212 is arc-shaped, the top of the assembly ring 212 is provided with a slot 215 corresponding to the bottom of the maintenance cover 213, the two side edges of the maintenance cover 213 are provided with an inlet and an outlet 216, the inside of the side edge of the assembly base 211 is provided with an assembly hole 218, and the bottom depression of the assembly base 211 is glued with a support pad 217, so that the assembly of the lifting of the shell 111 and the assembly of the limiting cover of the maintenance cover 213 are facilitated through the design;

the upper side edge of the assembly ring 212 is clamped with a limit clamping tongue 219, the side edge of the limit clamping tongue 219 is fixedly provided with a slide bar 220, the slide bar 220 is penetrated and arranged on the side wall of the lower end of the maintenance cover 213, the side edge of the upper part of the assembly ring 212 is provided with a clamping groove 221 corresponding to the limit clamping tongue 219, the inner side wall of the lower part of the maintenance cover 213 is provided with a storage groove 222 corresponding to the limit clamping tongue 219, and through the design, the maintenance cover 213 and the assembly ring 212 are conveniently fixed and limited relatively through the limit clamping tongue 219, so that the use is more convenient;

the outer end of the slide bar 220 is sleeved with an auxiliary frame 223, the auxiliary frame 223 is fixed on the outer wall of the lower part of the maintenance cover 213, a pressing piece 224 is fixed in the middle of the slide bar 220, a spring 225 is arranged between the pressing piece 224 and the inner wall of the auxiliary frame 223, the spring 225 is sleeved outside the slide bar 220, one end of the slide bar 220, which is far away from the limit clamping tongue 219, is fixed with a pull ring 226, and through the design, auxiliary power assisting jacking of the limit clamping tongue 219 is facilitated, so that assembly operation is more convenient;

the connecting structure 3 comprises an inner mounting plate 311 and an outer mounting plate 312, wherein the inner mounting plate 311 and the outer mounting plate 312 are mounted on the surface of the side wall of the shell 111 through connecting screws 313, the inner mounting plate 311 is positioned between the outer mounting plate 312 and the side wall of the shell 111, an inner connecting piece 314 and a binding post 315 are arranged in the inner mounting plate 311 and the outer mounting plate 312, the side end of the binding post 315 is sleeved at the side end of the inner connecting piece 314, the inner connecting piece 314 is inserted in the inner mounting plate 311, one end of the inner connecting piece 314 far away from the binding post 315 is connected at the side end of the connecting guide wire 113 through a wire, the binding post 315 is inserted in the side wall of the outer mounting plate 312 in a penetrating manner, a binding post 315 is sleeved with a binding nut 316 at the outer end of the binding post 315, and a gasket 317 is arranged between the two sets of binding nuts 316;

the outer assembly plate 312 outer wall side is fixed with flexible cover 318, and the one end that outer assembly plate 312 was kept away from to flexible cover 318 is fixed with elasticity circle 319, and flexible cover 318 is the setting of tensile coniform, through this design, is convenient for establish the maintenance to the cover of junction for it is more convenient to follow-up use.

Working principle: when needs butt joint assembly casing 111, with assembly base 211 and assembly circle 212, insert through the cooperation of mounting hole 218 and establish after the carrier lateral wall of assembly such as expansion bolts, through the setting of supporting pad 217, be convenient for install the bed hedgehopping of casing 111, make follow-up use more convenient, it is inside to insert the maintenance guard 213 through import and export 216 with primary and secondary wire, respectively under the cooperation of corresponding terminal 315, the centre gripping cooperation assembly through binding nut 316 and packing ring 317 is fixed, establish under tightening up at the cover of telescopic sleeve 318 and elastic ring 319, be convenient for the protection to junction, avoid the interference of external pair junction, when needs clearance change maintenance terminal 315, through the setting of outer assembly plate 312 and built-in plate 311, the change of being convenient for, after the dress is good, establish the maintenance guard 213 cover outside casing 111, press down after aiming at assembly circle 212, make the end cover at the maintenance guard 213 bottom, through the supporting pressure of assembly circle 212 top inner wall, it is inside to be convenient for the holding in storage groove 222 to receive in the holding down for the cover 219, reach behind the draw-in groove, the spring force of spring 219, it makes the inside the maintenance guard 219 to drive the inside the maintenance guard 213 to drive the limit guard 221, make the maintenance guard 220 to be convenient for the inside the expansion joint cover 213, the guide wire is convenient for take out the relative to the maintenance guard 220, the easy to dismantle the safety guard is convenient for the easy to take out, the relative safety guard is convenient for take out to the casing has been convenient for easy to take out the inside the operation has been convenient for easy to be convenient for use to take out and easy to have the inside the support guard 219 to be convenient for use has the end 213 cover is convenient to be used to be convenient for the top cover.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides a current transformer with anti-interference, includes casing (111), winding (112) and connects guide line (113), casing (111) internal assembly is provided with winding (112), winding (112) side assembly is connected with connects guide line (113), connect guide line (113) card to establish and assemble in casing (111) both sides, its characterized in that: the novel maintenance device is characterized in that a maintenance structure (2) is arranged outside the shell (111), a connecting structure (3) is arranged on the side edge of the shell (111), the maintenance structure (2) comprises an assembly base (211), the assembly base (211) is fixed at the bottom of the shell (111), an assembly ring (212) is arranged on the upper portion of the side edge of the assembly base (211), a maintenance cover (213) is inserted into the top of the assembly ring (212), and the maintenance cover (213) is completely covered outside the shell (111).

2. A current transformer with interference resistance according to claim 1, wherein: the assembly ring (212) and the assembly base (211) are assembled and fixed through assembly screws (214), the side edges of the assembly ring (212) are arc-shaped, slots (215) corresponding to the bottom of the maintenance cover (213) are formed in the top of the assembly ring (212), inlets and outlets (216) are formed in the two side edges of the maintenance cover (213), assembly holes (218) are formed in the side edges of the assembly base (211), and supporting pads (217) are glued in the bottoms of the assembly base (211) in a sunken mode.

3. A current transformer with interference resistance according to claim 1, wherein: the assembly ring (212) upper portion side card is equipped with spacing block tongue (219), spacing block tongue (219) side is fixed with slide bar (220), slide bar (220) are run through and are established in maintenance cover (213) lower extreme lateral wall, draw-in groove (221) that correspond with spacing block tongue (219) are seted up to assembly ring (212) upper portion side, maintenance cover (213) lower part inside wall has been seted up and has been kept in groove (222) that correspond with spacing block tongue (219).

4. A current transformer with interference resistance according to claim 3, wherein: the outer end cover of slide bar (220) is equipped with auxiliary frame (223), auxiliary frame (223) are fixed at maintenance guard (213) lower part outer wall, slide bar (220) middle part is fixed with supports preforming (224), be provided with spring (225) between support preforming (224) and auxiliary frame (223) inner wall, spring (225) cover is established in slide bar (220) outside, the one end that spacing block (219) was kept away from to slide bar (220) is fixed with pull ring (226).

5. A current transformer with interference resistance according to claim 1, wherein: the connecting structure (3) comprises an inner mounting plate (311) and an outer mounting plate (312), the inner mounting plate (311) and the outer mounting plate (312) are mounted on the side wall surface of the shell (111) through connecting screws (313), the inner mounting plate (311) is located between the outer mounting plate (312) and the side wall of the shell (111), an inner connecting piece (314) and a binding post (315) are arranged inside the inner mounting plate (311) and the outer mounting plate (312), the side end of the binding post (315) is sleeved at the side end of the inner connecting piece (314), the inner connecting piece (314) is inserted inside the inner mounting plate (311), one end of the inner connecting piece (314) far away from the binding post (315) is connected at the side end of the connecting guide wire (113) through a wire, the binding post (315) is inserted on the side wall of the outer mounting plate (312), a binding post (315) is sleeved with a binding nut (316) through threads, and a gasket (317) is arranged between the two groups of the binding nuts (316).

6. A current transformer with interference resistance according to claim 5, wherein: the outer assembly plate (312) outer wall side is fixed with flexible cover (318), the one end that outer assembly plate (312) was kept away from to flexible cover (318) is fixed with elasticity circle (319), flexible cover (318) are the setting of tensile coniform.