CN219066586U

CN219066586U - Novel CT gets electric transformer

Info

Publication number: CN219066586U
Application number: CN202320027361.XU
Authority: CN
Inventors: 陈华宁
Original assignee: Kai Mingnuo Shenzhen Technology Co ltd
Current assignee: Kai Mingnuo Shenzhen Technology Co ltd
Priority date: 2023-01-05
Filing date: 2023-01-05
Publication date: 2023-05-23
Anticipated expiration: 2033-01-05

Abstract

The utility model discloses a novel CT electricity taking transformer, which comprises a first shell and a second shell, wherein the first shell is fixedly connected with the second shell to form a storage cavity and three wire passing holes, three iron core components are fixedly arranged in the storage cavity, the three iron core components are in one-to-one correspondence with the three wire passing holes and sleeved on the outer sides of the wire passing holes, one side of each wire passing hole is respectively provided with a fixing structure, a wire rod passes through the wire passing hole through the fixing structure and is fixed by the fixing structure, and the electricity taking transformer can be connected with three cables through the three wire passing holes and generates electromagnetic induction with the iron core components in one-to-one correspondence with the wire passing holes; the cables passing through the wire through holes are fixedly connected through the fixing structure.

Description

Novel CT gets electric transformer

Technical Field

The utility model relates to the technical field of electronic elements, in particular to a novel CT electricity taking transformer.

Background

The current transformer is an instrument for converting primary side large current into secondary side small current according to an electromagnetic induction principle to measure. The current transformer consists of a closed iron core and windings, the number of turns of the primary winding is small, and the current transformer is connected in series in a circuit of current to be measured. The existing current transformer is generally only connected with one cable, is generally not firmly connected with the cable and is easy to slide relative to the cable.

Disclosure of Invention

In view of the above, the utility model discloses a novel CT electricity taking transformer which can be connected with three cables simultaneously and can be firmly connected with the cables.

The utility model discloses a novel CT electricity taking transformer, which comprises a first shell and a second shell, wherein the first shell is fixedly connected with the second shell to form a storage cavity and three wire passing holes, three iron core components are fixedly arranged in the storage cavity, the three iron core components are in one-to-one correspondence with the three wire passing holes and sleeved on the outer sides of the wire passing holes,

one side of each wire passing hole is respectively provided with a fixing structure, and the wire rod passes through the wire passing hole through the fixing structure and is fixed through the fixing structure.

Further, the iron core assembly comprises an annular iron core and a coil winding, the coil winding is wound on the annular iron core, and the annular iron core is sleeved on the outer side of the wire passing hole.

Further, the iron core assembly further comprises an iron core shell, the annular iron core is fixed on the inner side of the iron core shell, a through hole is formed in the iron core shell, and the through hole is correspondingly conducted with the wire passing hole.

Further, a first positioning portion is arranged on the inner wall of the first shell, a second positioning portion is arranged on the inner wall of the second shell, two ends of the iron core shell respectively support against the first shell and the second shell, and the iron core shell is positioned through the first positioning portion and the second positioning portion.

Further, the fixing structure comprises a sleeve wire pipe arranged on the outer side of the wire passing hole, and the sleeve wire pipe is communicated with the wire passing hole.

Further, an anti-skid block is arranged at the end part of the sleeve wire pipe far away from the wire passing hole, and the sleeve wire pipe clamps the cable through the anti-skid block.

Further, two notch grooves are formed in the sleeve pipe, the sleeve pipe is divided into a first clamping portion and a second clamping portion through the two notch grooves, and anti-sliding blocks are arranged on the first clamping portion and the second clamping portion.

Further, a driving ring is sleeved on the outer side of the sleeve pipe, the driving ring can slide along the sleeve pipe, and the first clamping part and the second clamping part can be driven to clamp the cable.

Further, a stop block is arranged at one end of the sleeve pipe, which is far away from the sleeve pipe, and is used for preventing the driving ring from being separated from the sleeve pipe.

Compared with the prior art, the technical scheme disclosed by the utility model has the beneficial effects that:

the power taking transformer can be connected with three cables through three wire through holes and generates electromagnetic induction with iron core components corresponding to the wire through holes one by one; the cables passing through the wire through holes are fixedly connected through the fixing structure.

Drawings

FIG. 1 is a schematic diagram of a transformer;

fig. 2 is a schematic structural view of the core assembly;

FIG. 3 is an exploded view of the transformer;

FIG. 4 is a schematic structural view of the first housing;

FIG. 5 is a schematic structural view of the second housing;

FIG. 6 is an enlarged view of area A of FIG. 5;

description of the drawings

100. A transformer; 10. a housing; 11. a first housing; 12. a second housing; 13. a wire through hole; 14. a first positioning portion; 15. a second positioning portion; 20. an iron core assembly; 21. an annular iron core; 22. a coil winding; 23. an iron core housing; 231. a through hole; 30. a fixed structure; 31. a sleeve pipe; 311. a first clamping portion; 312. a second clamping portion; 33. an anti-skid block; 34. a notch groove; 35. a drive ring; 36. and a stop block.

Detailed Description

The following description of the embodiments of the present utility model will be made with reference to the drawings in which the embodiments of the present utility model are clearly and fully described, it should be noted that when one component is considered to be "connected" to another component, it may be directly connected to the other component, or there may be an intervening component at the same time. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. It should also be noted that the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected, unless otherwise specifically defined and limited; either mechanically or electrically, or by communication between two components. 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. The terminology used herein in the description of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model.

It should be further noted that, in the description of the present utility model, it should be noted that, directions or positional relationships indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., are based on 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 apparatus or elements referred to must have a specific direction, be configured and operated in the specific direction, 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.

As shown in fig. 1 and 2, the utility model discloses a novel CT power transformer 100, which comprises a housing 10 and an iron core assembly 20, wherein the iron core assembly 20 is arranged in the housing 10, and the iron core assembly 20 is used for generating electromagnetic induction with a cable when the cable passes through the housing 10.

The housing 10 includes a first housing 11 and a second housing 12, the first housing 11 and the second housing 12 are fixedly connected to form a receiving cavity for receiving the iron core assembly 20, and the first housing 11 and the second housing 12 cooperate to fix the iron core assembly 20.

As shown in fig. 2 and fig. 3, in this application, the first housing 11 and the second housing 12 are fixedly connected and form three wire through holes 13, three iron core assemblies 20 are disposed in the accommodating cavity, the three iron core assemblies 20 are in one-to-one correspondence with the three wire through holes 13 and are sleeved on the outer sides of the wire through holes 13, and when a cable passes through the wire through holes 13, the cable can pass through the iron core assemblies 20 simultaneously and generate electromagnetic induction with the iron core assemblies 20.

Further, a fixing structure 30 is disposed at one side of each wire passing hole 13, and the wires pass through the wire passing holes 13 via the fixing structure 30 and are fixed via the fixing structure 30, so that the transformer 100 can be firmly connected with the cable.

As shown in fig. 2, further, the iron core assembly 20 includes a toroidal iron core 21 and a coil winding 22, the coil winding 22 is wound on the toroidal iron core 21, and the toroidal iron core 21 is sleeved outside the wire passing hole 13. In this application, the annular iron core 21 is annular, and when the iron core assembly 20 is installed, the annular iron core 21 is sleeved on the outer side of the wire passing hole 13 and is coaxially distributed with the wire passing hole 13. When the first housing 11 and the second housing 12 are fixed, the annular iron core 21 may be clamped, and the annular iron core 21 may be fixed.

With continued reference to fig. 3, in another embodiment, the core assembly 20 may further include a core housing 23, the annular core 21 is fixed on the inner side of the core housing 23, and a through hole 231 is disposed on the core housing 23, where the through hole 231 is correspondingly conducted with the wire through hole 13. In this embodiment, the annular core 21 is fixed in the core housing 23, and the first housing 11 and the second housing 12 are fixedly engaged with each other to fix the core housing 23 and further fix the annular core 21. In this application, the cable may extend into and through the through hole 231 after passing through the wire hole 13, so that the cable passes through the entire transformer 100. In this application, the through holes 231 are coaxially distributed with the via holes 13.

As shown in fig. 3 and 4, further, a first positioning portion 14 is provided on the inner wall of the first housing 11, a second positioning portion 15 is provided on the inner wall of the second housing 12, and two ends of the core housing 23 respectively support the first housing 11 and the second housing 12, and are positioned by the first positioning portion 14 and the second positioning portion 15. In this application, the first housing 11 and the second housing 12 may be fixed by screws, the core housing 23 is clamped when the first housing 11 and the second housing 12 are fixedly coupled, and both ends of the core housing 23 are positioned by the first positioning portion 14 and the second positioning portion 15, thereby achieving fixation of the core assembly 20. In this application, the first positioning portion 14 and the second positioning portion 15 are positioning grooves, respectively.

As shown in fig. 5 and 6, further, the fixing structure 30 includes a sleeve 31 disposed outside the via hole 13, the sleeve 31 is in communication with the via hole 13, in this application, the sleeve 31 is in communication with the through hole 231 through the via hole 13, and a cable may sequentially pass through the sleeve 31, the via hole 13, and the through hole 231. In this application, the sleeve 31 is integrally formed with the first housing 11 or the second housing 12.

An anti-skid block 33 is arranged at the end part of the sleeve wire tube 31 far away from the wire passing hole 13, and the cable is clamped by the sleeve wire tube 31 through the anti-skid block 33. When the cable passes through the sleeve 31 and the casing 10, the sleeve 31 clamps the cable through the anti-slip block 33, so that friction between the cable and the transformer 100 is increased.

Further, two notch grooves 34 are provided on the sleeve pipe 31, the sleeve pipe 31 is divided into a first clamping portion 311 and a second clamping portion 312 by the two notch grooves 34, and anti-slip blocks 33 are provided on the first clamping portion 311 and the second clamping portion 312. In this application, when the diameter of the cable is greater than the inner diameter of the anti-slip block 33, the first clamping portion 311 and the second clamping portion 312 may be deformed when the cable passes through the sleeve 31, so that the cable can normally pass through the sleeve 31.

The driving ring 35 is sleeved outside the sleeve pipe 31, the driving ring 35 can slide along the sleeve pipe 31, and can drive the first clamping part 311 and the second clamping part 312 to clamp a cable. When the cable passes through the sleeve 31 completely and the transformer 100 moves to the corresponding position of the cable, and the first clamping portion 311 and the second clamping portion 312 deform under the action of the cable, the driving ring 35 moves in a direction approaching to the anti-slip block 33, so that the first clamping portion 311 and the second clamping portion 312 clamp the cable through the anti-slip block 33, and the transformer 100 is fixed.

The end of the sleeve 31 remote from the sleeve 31 is provided with a stop 36 for preventing the drive ring 35 from being disengaged from the sleeve 31.

The present utility model can be embodied in various forms and modifications without departing from the broad spirit and scope of the utility model, and the above-described embodiments are intended to be illustrative of the utility model, but not limiting the scope of the utility model.

Claims

1. The novel CT electricity taking transformer is characterized by comprising a first shell and a second shell, wherein the first shell is fixedly connected with the second shell to form a storage cavity and three wire passing holes, three iron core components are fixedly arranged in the storage cavity, the three iron core components are in one-to-one correspondence with the three wire passing holes and sleeved on the outer sides of the wire passing holes,

2. The novel CT electrical transformer of claim 1, wherein the core assembly comprises an annular core and a coil winding, the coil winding is wound around the annular core, and the annular core is sleeved outside the wire passing hole.

3. The novel CT electrical transformer of claim 2, wherein the core assembly further comprises a core housing, the annular core is fixed on the inner side of the core housing, and a through hole is provided in the core housing, and the through hole is correspondingly conducted with the wire through hole.

4. The novel CT electricity acquisition transformer of claim 3, wherein a first positioning part is arranged on the inner wall of the first shell, a second positioning part is arranged on the inner wall of the second shell, and two ends of the iron core shell respectively support against the first shell and the second shell and position the iron core shell through the first positioning part and the second positioning part.

5. The novel CT transformer of claim 4, wherein the fixed structure comprises a sleeve tube disposed outside the via, the sleeve tube being in communication with the via.

6. The novel CT electricity transformer of claim 5, wherein the sleeve tube is provided with an anti-slip block at a position far away from the end of the wire passing hole, and the sleeve tube clamps the cable through the anti-slip block.

7. The novel CT electricity taking transformer of claim 6, wherein two notch grooves are formed in the sleeve pipe, the sleeve pipe is divided into a first clamping portion and a second clamping portion through the two notch grooves, and anti-sliding blocks are arranged on the first clamping portion and the second clamping portion.

8. The CT electrical transformer of claim 7, wherein the outer side of the sleeve is sleeved with a driving ring, the driving ring can slide along the sleeve and can drive the first clamping part and the second clamping part to clamp the cable.

9. The CT transformer of claim 8, wherein the end of the sleeve remote from the sleeve is provided with a stop for preventing the drive ring from being disengaged from the sleeve.