CN223450681U

CN223450681U - A current transformer

Info

Publication number: CN223450681U
Application number: CN202422731720.7U
Authority: CN
Inventors: 张凯歌; 李刚; 刘长青; 赵士斌
Original assignee: Nanyu Electric Technology Co ltd
Current assignee: Nanyu Electric Technology Co ltd
Priority date: 2024-11-11
Filing date: 2024-11-11
Publication date: 2025-10-17
Anticipated expiration: 2034-11-11

Abstract

The utility model relates to the technical field of power protection equipment, in particular to a current transformer. The technical scheme includes that the current transformer comprises a current transformer body, an overhaul port formed in the current transformer body, a plurality of clamping holes distributed in a circumferential array are formed in the overhaul port, a mounting baffle plate is attached to one face of the current transformer body to block the overhaul port, and a rotating mechanism which enables the mounting baffle plate to be dismounted in the overhaul port of the current transformer body after manual rotation is arranged on the mounting baffle plate. The utility model utilizes the cooperation of the structures of the access hole, the mounting baffle, the clamping hole, the rotating mechanism, the clamping block mechanism, the prompting mechanism and the like, the mounting baffle does not involve the disassembly of the screw, and the possibility of losing or not finding the screw is eliminated. Meanwhile, the operation of disassembling and installing the baffle is more visual and simple, complex tools are not needed, disassembly and installation can be completed rapidly, time is saved, and working efficiency is improved.

Description

Current transformer

Technical Field

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

Background

A circuit breaker is an automatic switching device for protecting a circuit, and has a main function of monitoring and controlling a current to prevent faults such as overload and short circuit of the circuit. And a current transformer is a device for measuring alternating current. Its main function is to convert large current into smaller proportion current, which is convenient for measurement and monitoring. The circuit breaker uses a current transformer mainly to improve the safety and accuracy of current measurement. When the internal parts of the traditional current transformer are problematic and need to be checked, the screws are usually required to be detached one by using tools, and the detachment process is very troublesome. Meanwhile, the screw is small in size, and the screw is very easy to slide when being manually taken, so that the subsequent reassembly can be influenced when the dropped screw cannot be found by naked eyes.

Disclosure of utility model

The utility model aims at solving the problem that when the internal parts of the traditional current transformer are in a problem and need to be checked, the screws are usually required to be detached one by using tools, and the detachment process is very troublesome. Meanwhile, as the screw is small in size and easy to slide when being manually taken, and the subsequent reassembling problem can be influenced when the falling screw cannot be found by naked eyes, the current transformer is provided.

The technical scheme includes that the current transformer comprises a current transformer body, a plurality of clamping holes distributed in a circumferential array are formed in the overhaul hole formed in the current transformer body, a mounting baffle plate is attached to one face of the current transformer body to block the overhaul hole, a rotating mechanism which enables the mounting baffle plate to be dismounted in the overhaul hole of the current transformer body after manual rotation is arranged on the mounting baffle plate, a plurality of supporting seats distributed in a circumferential array are fixedly arranged on the mounting baffle plate, and a clamping block mechanism which is in linkage with the rotating mechanism is arranged in the supporting seats.

Optionally, the slewing mechanism includes the drive ring that cup joints with the activity of installation baffle, a plurality of connecting blocks that are circumference array distribution of fixedly connected with on the drive ring, the one end fixedly connected with swivel ring of drive ring is kept away from to the connecting block, fixedly connected with a pair of lug on the swivel ring, be equipped with the suggestion mechanism of reminding user switch slewing mechanism on the swivel ring.

Optionally, the suggestion mechanism includes fixed connection on the swivel ring first arrow, the outer wall of swivel ring is located the one end of first arrow and is equipped with the opening instruction piece.

Optionally, the fixture block mechanism includes sliding connection at the sliding block of supporting seat one end, the one end of sliding block is equipped with the card and goes into the arc end in the card downthehole back automatic retraction supporting seat, the inside of supporting seat is equipped with reset spring, reset spring's one end and the inner wall fixed connection of supporting seat, reset spring's the other end and sliding block fixed connection, the one end fixedly connected with activity that the arc was kept away from to the sliding block runs through the connecting rope of supporting seat, the one end that the sliding block was kept away from to the connecting rope all with drive ring fixed connection.

Optionally, the outer wall fixedly connected with inserted block that the current transformer body is close to the access hole, set up the slot that carries out the location after blocking the inserted block on the installation baffle.

Optionally, the one side that the installation baffle is close to the swivel ring fixedly connected with a plurality of sand grip that are circumference array distribution.

Optionally, a plurality of lugs for blocking corresponding clamping holes are fixedly connected to the mounting baffle.

In summary, the present application includes at least one of the following beneficial technical effects:

The utility model utilizes the cooperation of the structures of the access hole, the mounting baffle, the clamping hole, the rotating mechanism, the clamping block mechanism, the prompting mechanism and the like, the mounting baffle does not involve the disassembly of the screw, and the possibility of losing or not finding the screw is eliminated. Meanwhile, the operation of disassembling and installing the baffle is more visual and simple, complex tools are not needed, disassembly and installation can be completed rapidly, time is saved, and working efficiency is improved.

Drawings

FIG. 1 is a schematic diagram of a current transformer according to the present utility model;

FIG. 2 is an enlarged schematic view of FIG. 1 at A;

FIG. 3 is a schematic view of the split structure of FIG. 1;

FIG. 4 is a schematic view of a portion of the structure of FIG. 3;

Fig. 5 is an enlarged schematic view at B in fig. 4.

The current transformer comprises a current transformer body 1, clamping holes 11, plug blocks 12, mounting baffles 2, mounting ribs 21, clamping lugs 22, clamping lugs 23, slots 3, rotating rings 31, protruding blocks 4, driving rings 41, connecting blocks 5, supporting seats 51, sliding blocks 52, arc-shaped ends 53, reset springs 54, connecting ropes 6, first arrows 61 and opening indication blocks.

Detailed Description

The following description of the embodiments of the present utility model will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the utility model are shown.

The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model.

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.

In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

It should be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus, and that a schematic representation of such terms does not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

In the description of the present utility model, unless explicitly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected, mechanically connected, electrically connected, directly connected, indirectly connected via an intervening medium, or in communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

Examples

As shown in fig. 1 to 5, the current transformer provided by the utility model comprises a current transformer body 1, wherein an inserting block 12 is fixedly connected to the outer wall of the current transformer body 1 close to an access hole, a slot 23 for positioning after the inserting block 12 is blocked is formed in a mounting baffle plate 2, the current transformer further comprises the access hole formed in the current transformer body 1, a plurality of blocking holes 11 distributed in a circumferential array are formed in the access hole, the mounting baffle plate 2 is attached to one surface of the current transformer body 1 to block the access hole, a plurality of convex strips 21 distributed in a circumferential array are fixedly connected to one surface of the mounting baffle plate 2 close to a rotating ring 3, and the convex strips 21 are used for increasing friction force between a hand and the mounting baffle plate 2 when the mounting baffle plate 2 is mounted and increasing force points for the hand so as to facilitate mounting and dismounting of the mounting baffle plate 2. The mounting baffle plate 2 is fixedly connected with a plurality of clamping lugs 22 for blocking the corresponding clamping holes 11, and the clamping lugs 22 have the effect of preventing the clamping holes 11 in the overhaul port from being directly exposed, so that the appearance aesthetic property of the current transformer body 1 is improved. The installation baffle plate 2 is provided with a rotating mechanism which can enable the installation baffle plate 2 to be disassembled and assembled in an overhaul port of the current transformer body 1 after manual rotation, a plurality of supporting seats 5 which are fixedly installed on the installation baffle plate 2 and distributed in a circumferential array, and a clamping block mechanism which is in linkage with the rotating mechanism is arranged in the supporting seats 5.

Further, the rotating mechanism comprises a driving ring 4 movably sleeved with the mounting baffle plate 2, a plurality of connecting blocks 41 which are distributed in a circumferential array are fixedly connected to the driving ring 4, one end of each connecting block 41, which is far away from the driving ring 4, is fixedly connected with a rotating ring 3, a pair of protruding blocks 31 are fixedly connected to the rotating ring 3, a prompting mechanism for prompting a user to switch the rotating mechanism is arranged on the rotating ring 3, and the prompting mechanism is used for prompting the user to operate according to the correct steps when the rotating ring 3 is rotationally operated, so that the possibility of errors is reduced.

The prompting mechanism comprises a first arrow 6 fixedly connected to the rotating ring 3, an opening indicating block 61 is arranged at one end of the outer wall of the rotating ring 3, located at the first arrow 6, and is used for guiding a user to perform correct operation steps.

Still further, the latch mechanism includes a slider 51 slidably coupled to one end of the support base 5, and the slider 51 is normally in a state of always protruding out of the support base 5 and latching the latch hole 11 by the elastic urging force of the return spring 53. One end of the sliding block 51 is provided with an arc-shaped end 52 which is clamped into the clamping hole 11 and then automatically retracts into the supporting seat 5, and the arc-shaped end 52 can drive the sliding block 51 to automatically retract into the supporting seat 5 when propping against the clamping hole 11, so that the installation baffle 2 is ensured not to be blocked during installation. The inside of the supporting seat 5 is provided with a return spring 53, and the return spring 53 has the function of enabling the rotating mechanism and the clamping block mechanism to rotate to restore to the original positions and be used repeatedly next time when the rotating mechanism and the clamping block mechanism are not bound. One end of the return spring 53 is fixedly connected with the inner wall of the supporting seat 5, the other end of the return spring 53 is fixedly connected with the sliding block 51, one end, away from the arc-shaped end 52, of the sliding block 51 is fixedly connected with a connecting rope 54 which movably penetrates through the supporting seat 5, and one end, away from the sliding block 51, of the connecting rope 54 is fixedly connected with the driving ring 4.

In this embodiment, when a current transformer body of a current transformer is required to be used, as shown in fig. 1, only the rotating ring 3 needs to be rotated according to the indication of the first arrow 6 and the opening indication block 61 on the rotating ring 3, the rotating ring 3 drives the driving ring 4 to rotate through the plurality of connection blocks 41, and the driving ring 4 drives one ends of the plurality of connection ropes 54 to rotate. The other ends of the connecting ropes 54 pull the corresponding sliding blocks 51 to retract into the supporting seat 5, and the installation baffle plate 2 can be taken out from the overhaul port of the current transformer body 1 at the moment, so that the operation is simple and easy. When the installation baffle plate 2 is required to be installed in the access hole of the current transformer body 1, only the slot 23 on the installation baffle plate 2 is required to be clamped into the insert block 12 on the current transformer body 1, and meanwhile the rotating ring 3 is rotated again, so that the sliding blocks 51 retract into the supporting seat 5. When the current transformer body 1 is tightly attached to one surface of the raw material rotating ring 3 of the installation baffle plate 2, the rotating ring 3 can be loosened, and the sliding block 51 at the moment enables the sliding block 51 to clamp the corresponding clamping hole 11 through the elastic thrust of the corresponding reset spring 53, and meanwhile, the corresponding connecting rope 54 is driven to be restored to a far away position for the next use.

The above preferred embodiments of the utility model are provided only to help illustrate the utility model. The preferred embodiments are not intended to be exhaustive or to limit the utility model to the precise form disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the utility model and the practical application, to thereby enable others skilled in the art to best understand and utilize the utility model. The utility model is limited only by the claims and the full scope and equivalents thereof.

Claims

1. A current transformer, comprising a current transformer body (1), characterized in that it also comprises:

An inspection port is provided on the current transformer body (1), wherein a plurality of latch holes (11) distributed in a circumferential array are provided in the inspection port;

An installation baffle (2) is attached to one side of the current transformer body (1) to block the inspection port, and a rotating mechanism is provided on the installation baffle (2) for manually rotating the installation baffle (2) to allow the installation baffle (2) to be installed and removed in the inspection port of the current transformer body (1);

A plurality of support seats (5) distributed in a circumferential array are fixedly mounted on the mounting baffle (2), and a clamping block mechanism that is linked to a rotation mechanism for switching is provided inside the support seat (5).

2. A current transformer according to claim 1, characterized in that the rotating mechanism includes a driving ring (4) movably connected to the mounting baffle (2), a plurality of connecting blocks (41) distributed in a circular array are fixedly connected to the driving ring (4), and the end of the connecting block (41) away from the driving ring (4) is fixedly connected to a rotating ring (3), a pair of protrusions (31) are fixedly connected to the rotating ring (3), and a prompt mechanism for reminding the user to switch the rotating mechanism is provided on the rotating ring (3).

3. A current transformer according to claim 2, characterized in that the prompt mechanism includes a first arrow (6) fixedly connected to the rotating ring (3), and an open indication block (61) is provided on the outer wall of the rotating ring (3) at one end of the first arrow (6).

4. A current transformer according to claim 1, characterized in that the clamping block mechanism includes a sliding block (51) slidably connected to one end of the support seat (5), one end of the sliding block (51) is provided with an arc-shaped end (52) which automatically retracts into the support seat (5) after being clamped into the clamping hole (11), a return spring (53) is provided inside the support seat (5), one end of the return spring (53) is fixedly connected to the inner wall of the support seat (5), the other end of the return spring (53) is fixedly connected to the sliding block (51), the end of the sliding block (51) away from the arc-shaped end (52) is fixedly connected to a connecting rope (54) that movably passes through the support seat (5), and the end of the connecting rope (54) away from the sliding block (51) is fixedly connected to the driving ring (4).

5. A current transformer according to claim 1, characterized in that an insert (12) is fixedly connected to the outer wall of the current transformer body (1) close to the inspection port, and a slot (23) is provided on the mounting baffle (2) for clamping the insert (12) and positioning it.

6. A current transformer according to claim 2, characterized in that a surface of the mounting baffle (2) close to the rotating ring (3) is fixedly connected with a plurality of convex strips (21) distributed in a circumferential array.

7. A current transformer according to claim 1, characterized in that a plurality of latches (22) for blocking corresponding latch holes (11) are fixedly connected to the mounting baffle (2).