CN220189960U - Overvoltage protector for current transformer - Google Patents

Abstract

The utility model relates to the technical field of power equipment, in particular to a current transformer overvoltage protector which comprises a protector body, wherein grooves with openings at the top are formed in the front side wall and the rear side wall of the protector body, wiring terminals are fixedly arranged in the grooves, a flip cover and a half cover which jointly cover the wiring terminals are arranged in the grooves, the half cover is sleeved in the flip cover, a limit groove is formed in the protector body, a fixed shaft which is in rotary fit with the bottom of the flip cover is fixedly arranged in the limit groove, the flip cover rotates ninety degrees around the fixed shaft to the direction far away from the grooves, an insulating tube is placed on the protector body, and a round hole for accommodating the insulating tube to pass through is formed in the top of the flip cover. The utility model avoids exposing the wiring terminal through the flip and the half cover, has good effects of dust prevention, moisture prevention and impact damage prevention, and provides a fulcrum for the insulating tube through the flip after opening, so that the insulating tube can avoid exposing the part of the wire, from which the insulating layer is removed, and improves the use safety.

Description

Overvoltage protector for current transformer

Technical Field

The utility model relates to the technical field of power equipment, in particular to a current transformer overvoltage protector.

Background

The current transformer overvoltage protector is also called as CT overvoltage protector, and is mainly used for primary measurement and control in a power system. Chinese patent document CN108736460a discloses a current transformer overvoltage protector, which is provided with a protective cover, and can integrally protect a current transformer overvoltage protector body, but two connecting terminals distributed front and back are generally arranged on the current transformer overvoltage protector body, when only one terminal on one side is used, the protective cover needs to be completely opened, which can cause the other terminal to be exposed, thereby leading to the lack of protection of the other terminal. In addition, the protection function of the protection cover is relatively simple, and the protection function in the use process is lacked.

Disclosure of Invention

The utility model aims to provide an overvoltage protector of a current transformer, which solves the problems in the background technology.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a current transformer overvoltage protection ware, includes the protector body, open-top's recess has all been seted up to the front and back lateral wall of protector body, the recess internal fixation is equipped with binding post, two the jack has been seted up to binding post's terminal surface that is on the back of the body, its characterized in that: be equipped with the common shroud binding post's flip and half lid in the recess, half lid cover locate in the flip and with protector body integrated into one piece, on the protector body and be located the below of recess has been seted up the spacing groove, the spacing inslot fixed be equipped with flip bottom pivoted complex fixed axle, flip uses the fixed axle is kept away from to recess direction rotation ninety degrees, the insulator tube has been placed on the protector body, the round hole that holds the insulator tube passed through has been seted up at flip's top.

Optionally, a bottom piece of the flip cover is integrally formed with a bottom piece matched with the limit groove, and the bottom piece is rotationally connected with the fixed shaft.

Optionally, the opposite side walls of the flip cover and the half cover are of an opening structure, and the bottom of the flip cover and the bottom of the half cover are of an opening structure.

Optionally, the upper surface fixedly connected with magnetic path of half lid, fixedly connected with on the flip with the magnetism looks attraction of magnetic path take the piece.

Optionally, a placement groove is formed in the upper surface of the protector body, and a plurality of insulating pipes are placed in the placement groove.

Optionally, the insulating tube is a transparent flexible tube, and the outer diameter of the insulating tube, the aperture of the round hole and the outer diameter of the jack are equal.

Compared with the prior art, the utility model has the following beneficial effects: according to the utility model, two binding posts can be respectively protected through the two groups of flip covers, the flip covers and the half covers are prevented from exposing the binding posts, the effects of dust prevention, moisture prevention and impact damage prevention are good, and the flip covers after being opened provide a fulcrum for the insulating tube, so that the insulating tube can prevent the part of the conducting wire, from which the insulating layer is removed, from being exposed, and the use safety is improved.

Drawings

FIG. 1 is a top view of the present utility model;

FIG. 2 is a front view of the utility model with the flip cover not installed;

FIG. 3 is a partial cross-sectional view of the protector body and flip cover of the present utility model in a first state;

fig. 4 is a partial cross-sectional view of the protector body and flip cover of the present utility model in a second state.

In the figure: 1. a protector body; 2. a groove; 3. a connection terminal; 4. a jack; 5. a placement groove; 6. an insulating tube; 7. a limit groove; 8. a fixed shaft; 9. a flip cover; 10. a round hole; 11. a footing piece; 12. a half cover; 13. a magnetic block; 14. and (5) building blocks.

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.

Examples: referring to fig. 1 to 4, the utility model provides an overvoltage protector for a current transformer, which comprises a protector body 1, wherein grooves 2 with openings at the top are formed in the front and rear side walls of the protector body 1, wiring terminals 3 are fixedly arranged in the grooves 2, inserting holes 4 are formed in the opposite end faces of the two wiring terminals 3, metal sheets of the wiring terminals 3 are arranged in the inserting holes 4, the inserting holes 4 accommodate insertion of wires connected with the wiring terminals 3, the wires can be pressed in the inserting holes 4 through screws carried by the wiring terminals 3, and electric connection between the wires and the metal sheets is realized, namely, the wires and the wiring terminals 3 are connected.

The groove 2 is internally provided with a flip cover 9 and a half cover 12 which jointly cover the wiring terminal 3, the opposite side walls of the flip cover 9 and the half cover 12 are of an opening structure, and the bottoms of the flip cover 9 and the half cover 12 are of an opening structure. The half cover 12 is sleeved in the flip cover 9 and is integrally formed with the protector body 1, the protector body 1 is provided with a limit groove 7 positioned below the groove 2, a fixed shaft 8 which is in rotary fit with the bottom of the flip cover 9 is fixedly arranged in the limit groove 7, the fixed shaft 8 is integrally formed with the protector body 1, the rotary fit of the fixed shaft 8 is specifically that a bottom integrated into one piece of the flip cover 9 is provided with a bottom foot piece 11 which is matched with the limit groove 7, the bottom foot piece 11 is rotationally connected with the fixed shaft 8, and the flip cover 9 can be rotated ninety degrees by taking the fixed shaft 8 as an axis to the direction far away from the groove 2 by manually pushing the flip cover 9. The upper surface of the protector body 1 is provided with a placing groove 5, a plurality of insulating pipes 6 are placed in the placing groove 5, and the top of the flip 9 is provided with a round hole 10 for accommodating the insulating pipes 6 to pass through. The insulating tube 6 is a transparent flexible tube made of PVC material, and the outer diameter of the insulating tube 6, the aperture of the round hole 10 and the outer diameter of the jack 4 are equal.

According to the utility model, two binding post 3 can be protected respectively through two groups of flip covers 9, please refer to fig. 3, at this moment, flip covers 9 are in a vertical state, the top of a half cover 12 is arranged below a round hole 10 to shield, and the flip covers 9 and the half cover 12 cover the binding post 3 together, and the flip covers 9 and the half cover 12 avoid exposing the binding post 3, so that the binding post 3 has good protection effects such as dust prevention, moisture prevention and impact damage prevention.

Referring to fig. 4, due to the limiting effect of the limiting groove 7, the flip cover 9 is in a horizontal state, the round holes 10 are aligned with the jacks 4 one by one, before the wires are connected with the wiring terminals 3, the insulating tube 6 is sleeved into the round holes 10, one end of the insulating tube 6 stretches into one part of the jacks 4, then the wires penetrate through the insulating tube 6 to complete the wiring with the wiring terminals 3, the flip cover 9 provides a fulcrum for the insulating tube 6, the insulating tube 6 is taken along with use, the installation and the disassembly are simple, the insulating tube 6 can avoid the exposed part of the insulating layer removed from the wires, and the use safety is improved.

On the basis of the above embodiment, the upper surface of the half cover 12 is fixedly connected with the magnetic block 13, and the flip cover 9 is fixedly connected with the lapping block 14 which is magnetically attracted with the magnetic block 13, so that the flip cover 9 is prevented from rotating randomly by the attraction of the magnetic block 13 and the lapping block 14, and the flip cover 9 and the half cover 12 are reliably connected and are convenient to use.

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

Claims (6)

1. The utility model provides a current transformer overvoltage protection ware, includes protector body (1), open-top's recess (2) have all been seted up to the front and back lateral wall of protector body (1), recess (2) internal fixation is equipped with binding post (3), two jack (4), its characterized in that have been seted up to binding post (3) terminal surface on the back of the body: be equipped with in recess (2) common shroud flip (9) and half lid (12) of binding post (3), half lid (12) cover locate in flip (9) and with protector body (1) integrated into one piece, on protector body (1) and be located recess (2) below has seted up spacing groove (7), spacing groove (7) internal fixation be equipped with flip (9) bottom pivoted fixed axle (8), flip (9) use fixed axle (8) are to keeping away from recess (2) direction rotation ninety degrees, insulator tube (6) have been placed on protector body (1), round hole (10) that hold insulator tube (6) pass through have been seted up at the top of flip (9).

2. The current transformer overvoltage protector as set forth in claim 1, wherein: the bottom of the flip cover (9) is integrally formed with a bottom foot piece (11) which is matched with the limit groove (7), and the bottom foot piece (11) is rotationally connected with the fixed shaft (8).

3. The current transformer overvoltage protector as set forth in claim 1, wherein: the side walls of the flip cover (9) and the half cover (12) which are opposite are of an opening structure, and the bottoms of the flip cover (9) and the half cover (12) are of an opening structure.

4. The current transformer overvoltage protector as set forth in claim 1, wherein: the upper surface of the half cover (12) is fixedly connected with a magnetic block (13), and the flip (9) is fixedly connected with a lapping block (14) which is magnetically attracted with the magnetic block (13).

5. The current transformer overvoltage protector as set forth in claim 1, wherein: the upper surface of the protector body (1) is provided with a placement groove (5), and a plurality of insulating pipes (6) are placed in the placement groove (5).

6. The current transformer overvoltage protector as set forth in claim 1, wherein: the insulating tube (6) is a transparent flexible tube, and the outer diameter of the insulating tube (6), the aperture of the round hole (10) and the outer diameter of the jack (4) are equal.