CN218768963U9 - Wide-range low-voltage current transformer for through-core metering - Google Patents
Wide-range low-voltage current transformer for through-core metering Download PDFInfo
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- CN218768963U9 CN218768963U9 CN202221156383.8U CN202221156383U CN218768963U9 CN 218768963 U9 CN218768963 U9 CN 218768963U9 CN 202221156383 U CN202221156383 U CN 202221156383U CN 218768963 U9 CN218768963 U9 CN 218768963U9
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- 238000009434 installation Methods 0.000 claims description 18
- 238000004804 winding Methods 0.000 claims description 15
- 238000004891 communication Methods 0.000 claims description 9
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 3
- 238000005259 measurement Methods 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 6
- 239000002184 metal Substances 0.000 abstract description 2
- 229910052751 metal Inorganic materials 0.000 abstract description 2
- 238000011900 installation process Methods 0.000 abstract 1
- 241001391944 Commicarpus scandens Species 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 230000005674 electromagnetic induction Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
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Abstract
The utility model discloses a through-type wide-range low-voltage current transformer for metering, which relates to the field of current transformers and comprises an equipment plate and a fixed plate, wherein the upper surface of the fixed plate is fixedly connected with a transformer body, both sides of the lower surface of the fixed plate are fixedly connected with fixed blocks, one side surfaces of the two fixed blocks are provided with fixed ports, both sides of the upper surface of the equipment plate are provided with slots, both sides of the inner wall of the equipment plate are provided with mounting cavities, one side of the inner wall of the two mounting cavities is fixedly connected with springs, one ends of the two springs, which are opposite, are fixedly connected with movable blocks, and the surfaces of the opposite sides of the two movable blocks are fixedly connected with inclined surface anti-drop blocks. The utility model can quickly install and fix the current transformer, so that the installation process is simple, convenient and quick, the traditional fixed metal such as bolts or screws is not required to be used, the stability in the long-time use process is ensured, and the practical performance of the current transformer is improved.
Description
Technical Field
The utility model relates to the field of current transformers, in particular to a wide-range low-voltage current transformer for through-core metering.
Background
The current transformer is an instrument for converting primary side large current into secondary side small current to measure according to an electromagnetic induction principle, the current transformer consists of a closed iron core and windings, the number of turns of the primary side winding is small, the primary side winding is connected in series with a circuit of current to be measured, therefore, the current transformer always has all the current of the circuit to flow, the number of turns of the secondary side winding is large, the secondary side winding is connected in series with a measuring instrument and a protection loop, the secondary side loop of the current transformer is always closed when the current transformer works, therefore, the impedance of a series coil of the measuring instrument and the protection loop is small, and the working state of the current transformer is close to a short circuit.
The applicant has found through searching that the chinese patent discloses a "current transformer", whose publication (bulletin) number is "CN205692689U", and the protection device is mainly disposed on the surface of the current transformer to prevent the flexible insulating sleeve from being damaged, but if the current transformer is required to be fixed in the use process, the current transformer is generally mounted and fixed by bolts or screws, and the mounting manner is very complicated, and the surface of the bolts or screws is generally oxidized in the long-term use process, so that the bolts or screws are easy to break and damage, and the current transformer cannot be well fixed.
Disclosure of Invention
The utility model aims to provide a wide-range low-voltage current transformer for through-core metering, which aims to solve the problems that if the current transformer in the comparison document provided in the background art needs to be fixed in the use process, the current transformer is generally installed and fixed through bolts or screws, the installation mode is very complicated, the surface of the bolts or screws is generally oxidized in the long-time use process, and the bolts or screws are easy to break and damage, so that the current transformer cannot be well fixed.
In order to achieve the above purpose, the present utility model provides the following technical solutions: the wide-range low-voltage current transformer for the through type metering comprises an equipment plate and a fixed plate, wherein the upper surface of the fixed plate is fixedly connected with a transformer body, both sides of the lower surface of the fixed plate are fixedly connected with fixed blocks, and one side surfaces of the two fixed blocks are provided with fixed ports;
the slot has all been seted up to the both sides of equipment board upper surface, the installation cavity has all been seted up to the both sides of equipment board inner wall, two the equal fixedly connected with spring in one side of installation cavity inner wall, two the equal fixedly connected with movable block of the opposite one end of spring, two the equal fixedly connected with inclined plane anticreep piece in opposite one side surface of movable block, two the intercommunication opening has all been seted up to the opposite one side of installation cavity inner wall, two the opposite one side of inclined plane anticreep piece extends to corresponding slot inner wall through corresponding intercommunication opening respectively.
Preferably, the two sides of the upper surface of the fixing plate are fixedly connected with a protection frame together, and the transformer body is located inside the protection frame.
Preferably, the surfaces of the two moving blocks are fixedly connected with connecting rods.
Preferably, the front side of the inner wall of the installation cavity is provided with a moving opening, and the front ends of the two connecting rods respectively extend to the front side of the equipment board through the corresponding moving openings.
Preferably, the front ends of the two connecting rods are fixedly connected with operation blocks, and the surfaces of the two operation blocks are sleeved with soft rubber sleeves.
Preferably, the transformer body comprises an annular core, a first insulating layer is fixedly connected to the surface of the annular core, a winding layer is wound on the surface of the first insulating layer, and a second insulating layer is fixedly connected to the surface of the winding layer.
Preferably, the first insulating layer and the first insulating layer are made of crepe paper materials, the winding layer is a copper wire, and the surface of the copper wire is wrapped with insulating rubber.
The utility model has the technical effects and advantages that:
1. through setting up equipment board, fixed plate, slot, installation cavity, spring, movable block, inclined plane anticreep piece, intercommunication opening to can install fixedly fast current transformer, make the installation simple and convenient quick, and need not to use traditional fixed metal such as bolt or screw, ensure the stability in long-time use, increased current transformer's practicality.
2. Through setting up the protection frame to can protect current transformer, prevent that external pressure or impact force from acting on current transformer surface between, lead to current transformer to take place to damage.
3. Through setting up connecting rod and removal opening and operation piece to can open the processing to the fixed equipment fast, make the current transformer of installation can damage or dismantle fast when changing the maintenance.
Drawings
Fig. 1 is a schematic diagram of the overall structure of the present utility model.
Fig. 2 is a schematic top view of the fixing plate of the present utility model.
Fig. 3 is an enlarged schematic view of the structure of fig. 1 a according to the present utility model.
Fig. 4 is a schematic perspective view of a mounting plate according to the present utility model.
Fig. 5 is a schematic diagram of the structure of the transformer body according to the present utility model.
In the figure: 1. an equipment board; 2. a fixing plate; 201. a fixed block; 202. a fixed port; 3. a transformer body; 301. annular paste; 302. a first insulating layer; 303. a winding layer; 304. a second insulating layer; 5. A slot; 6. a mounting cavity; 7. a spring; 8. a moving block; 9. inclined plane anti-drop block; 10. a communication opening; 11. a protective frame; 12. a connecting rod; 13. moving the opening; 14. an operation block.
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.
The utility model provides a wide-range mortgage current transformer for through-core metering, which is shown in fig. 1-5, and comprises a device plate 1 and a fixed plate 2, wherein the upper surface of the fixed plate 2 is fixedly connected with a transformer body 3, both sides of the lower surface of the fixed plate 2 are fixedly connected with fixed blocks 201, and one side surfaces of the two fixed blocks 201 are provided with fixed ports 202;
the slot 5 has all been seted up to the both sides of equipment board 1 upper surface, installation cavity 6 has all been seted up to the both sides of equipment board 1 inner wall, the equal fixedly connected with spring 7 in one side of two installation cavity 6 inner walls, the equal fixedly connected with movable block 8 of the opposite one end of two springs 7, the equal fixedly connected with inclined plane anticreep piece 9 in the opposite one side surface of two movable blocks 8, communication opening 10 has all been seted up to the opposite one side of two installation cavity 6 inner walls, the opposite one side of two inclined plane anticreep pieces 9 extends to corresponding slot 5 inner walls through corresponding communication opening 10 respectively.
As shown in fig. 1, the two sides of the upper surface of the fixing plate 2 are fixedly connected with the protection frame 11, the transformer body 3 is located inside the protection frame 11, and can protect a current transformer, so that the current transformer is prevented from being damaged due to the fact that external pressure or impact force acts on the surface of the current transformer.
As shown in fig. 2, the surfaces of the two moving blocks 8 are fixedly connected with connecting rods 12, the front side of the inner wall of the installation cavity 6 is provided with moving openings 13, the front ends of the two connecting rods 12 respectively extend to the front side of the equipment board 1 through the corresponding moving openings 13, the front ends of the two connecting rods 12 are fixedly connected with operating blocks 14, the surfaces of the two operating blocks 14 are sleeved with flexible rubber sleeves, and the quick opening treatment of the fixed equipment can be realized, so that the installed current transformer can be damaged or quickly detached when being replaced and maintained.
As shown in fig. 5, the transformer body 3 includes an annular core 301, a first insulating layer 302 is fixedly connected to the surface of the annular core 301, a winding layer 303 is wound on the surface of the first insulating layer 302, a second insulating layer 304 is fixedly connected to the surface of the winding layer 303, the first insulating layer 302 and the first insulating layer 302 are made of crepe paper materials, the winding layer 303 is a copper wire, insulating rubber is wrapped on the surface of the copper wire, and the whole structure of the current transformer is stable and has a good using effect.
The working principle of the utility model is as follows: when the transformer is used, firstly, the fixed plate 2 fixedly connected with the lower surface of the transformer body 3 is connected with the equipment plate 1, the fixed block 201 installed through the fixed plate 2 is spliced with the slot 5 formed in the equipment plate 1 during connection and installation, the fixed block 201 extrudes the inclined surface anti-falling block 9 on the inner wall of the slot when the fixed block 201 is spliced so as to enable the fixed block to move into the installation cavity 6 through the communication opening 10, then the fixed block 201 extends into the slot 5, when the fixed opening 202 formed in the fixed block 201 moves to a position matched with the position of the communication opening 10, the inclined surface anti-falling block 9 extrudes thrust, then the spring 7 drives the moving block 8 to move, the moving block 8 drives the inclined surface anti-falling block 9 to move, the lower surface of the inclined surface anti-falling block 9 extends into the fixed opening 202 formed in the fixed block 201 through the communication opening 10, and the lower surface of the inner wall of the inclined surface anti-falling block 9 contacts with the lower surface of the communication opening 10 formed in the inner wall of the fixed block 202 so as to enable the fixed block 201 to be fixed with the inner wall of the slot 5, and accordingly the fixed plate 2 and the equipment plate 1 are fixed, and the transformer body 2 is driven by the moving block 1 and the equipment 1 are fixedly installed by the moving block 1;
afterwards, the protection frame 11 can protect the transformer body 3 in the using process, then when the transformer body 3 is damaged or needs to be replaced, the operation block 14 drives the connecting rod 12 to move, the connecting rod 12 drives the moving block 8 fixedly connected with the connecting rod to move, the moving block 8 drives the inclined surface anti-drop block 9 fixedly connected with the connecting rod to move, the inclined surface anti-drop block 9 is separated from the fixing opening 202 formed in the inner wall of the fixing block 201, the fixing block 201 can be separated from the slot 5, and the fixing plate 2 and the transformer body 3 connected with the fixing plate can be separated from the equipment plate 1.
Finally, it should be noted that: the foregoing description is only illustrative of the preferred embodiments of the present utility model, and although the present utility model has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements or changes may be made without departing from the spirit and principles of the present utility model.
Claims (7)
1. The utility model provides a wear core measurement with wide range low current transformer, includes equipment board (1) and fixed plate (2), its characterized in that: the transformer comprises a transformer body (3) fixedly connected to the upper surface of a fixed plate (2), fixed blocks (201) are fixedly connected to two sides of the lower surface of the fixed plate (2), and fixed ports (202) are formed in one side surface of each fixed block (201);
the utility model discloses a device board, including equipment board (1), installation cavity (6) are all offered to both sides of equipment board (1) upper surface, two installation cavity (6) one side of inner wall is equal fixedly connected with spring (7), two equal fixedly connected with movable block (8) of one end opposite of spring (7), two equal fixedly connected with inclined plane anticreep piece (9) of opposite side surface of movable block (8), two communication opening (10) have all been offered to one side opposite of installation cavity (6) inner wall, two opposite one side of inclined plane anticreep piece (9) extends to corresponding slot (5) inner wall through corresponding communication opening (10) respectively.
2. The wide-range, through-the-heart, low-voltage current transformer for metering of claim 1, wherein: the two sides of the upper surface of the fixed plate (2) are fixedly connected with a protection frame (11) together, and the transformer body (3) is positioned in the protection frame (11).
3. The wide-range, through-the-heart, low-voltage current transformer for metering of claim 1, wherein: the surfaces of the two moving blocks (8) are fixedly connected with connecting rods (12).
4. A wide-range, through-the-heart, metering, low-voltage current transformer as claimed in claim 3, wherein: the front side of the inner wall of the installation cavity (6) is provided with a movable opening (13), and the front ends of the two connecting rods (12) respectively extend to the front side of the equipment board (1) through the corresponding movable openings (13).
5. A wide-range, through-the-heart, metering, low-voltage current transformer as claimed in claim 3, wherein: the front ends of the two connecting rods (12) are fixedly connected with operation blocks (14), and soft rubber sleeves are sleeved on the surfaces of the two operation blocks (14).
6. The wide-range, through-the-heart, low-voltage current transformer for metering of claim 1, wherein: the transformer body (3) comprises an annular core (301), a first insulating layer (302) is fixedly connected to the surface of the annular core (301), a winding layer (303) is wound on the surface of the first insulating layer (302), and a second insulating layer (304) is fixedly connected to the surface of the winding layer (303).
7. The wide-range, through-the-heart, low-voltage current transformer for metering of claim 6, wherein: the first insulating layer (302) and the first insulating layer (302) are made of crepe paper materials, the winding layer (303) is a copper wire, and insulating rubber is wrapped on the surface of the copper wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221156383.8U CN218768963U9 (en) | 2022-05-13 | 2022-05-13 | Wide-range low-voltage current transformer for through-core metering |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221156383.8U CN218768963U9 (en) | 2022-05-13 | 2022-05-13 | Wide-range low-voltage current transformer for through-core metering |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN218768963U CN218768963U (en) | 2023-03-28 |
| CN218768963U9 true CN218768963U9 (en) | 2023-04-21 |
Family
ID=85642522
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221156383.8U Active CN218768963U9 (en) | 2022-05-13 | 2022-05-13 | Wide-range low-voltage current transformer for through-core metering |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218768963U9 (en) |
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2022
- 2022-05-13 CN CN202221156383.8U patent/CN218768963U9/en active Active
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| Publication number | Publication date |
|---|---|
| CN218768963U (en) | 2023-03-28 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CU01 | Correction of utility model | ||
| CU01 | Correction of utility model |
Correction item: Denomination of Utility Model|Abstract|Claims|Description Correct: Wide range low-voltage current transformers for through core metering| correct False: Wide range mortgage current transformers for through core metering| error Number: 13-01 Page: ?? Volume: 39 Correction item: Denomination of Utility Model|Abstract Correct: Wide range low-voltage current transformers for through core metering|correct False: Wide range mortgage current transformers for through core metering|error Number: 13-01 Volume: 39 |
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| OR01 | Other related matters | ||
| OR01 | Other related matters |