CN213877816U - Adjustable structure of current transformer coil - Google Patents
Adjustable structure of current transformer coil Download PDFInfo
- Publication number
- CN213877816U CN213877816U CN202022588771.0U CN202022588771U CN213877816U CN 213877816 U CN213877816 U CN 213877816U CN 202022588771 U CN202022588771 U CN 202022588771U CN 213877816 U CN213877816 U CN 213877816U
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- Prior art keywords
- arc
- shaped steel
- steel plate
- coil
- plate
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- Expired - Fee Related
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- 229910000831 Steel Inorganic materials 0.000 claims abstract description 35
- 239000010959 steel Substances 0.000 claims abstract description 35
- 238000004804 winding Methods 0.000 abstract description 17
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 238000000034 method Methods 0.000 abstract description 5
- 238000009413 insulation Methods 0.000 abstract description 3
- 238000005429 filling process Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
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Abstract
The utility model discloses an adjustable structure of a current transformer coil, which comprises an arc-shaped steel plate, a fixed plate and a screw rod, wherein the concave surface of the arc-shaped steel plate faces upwards and is fixed below a secondary coil; the fixing plate is positioned below the arc-shaped steel plate and is fixedly connected with the die through a fixing bolt, and a strip-shaped hole is formed in the fixing plate; the screw rod is fixed at the bottom of the arc-shaped steel plate and penetrates through the strip-shaped hole to adjustably fix the arc-shaped steel plate and the fixing plate. The utility model can conveniently adjust the position of the coil during the die-filling process, and the coil is placed in the middle, thereby ensuring the insulation size in each direction to be consistent; the height of the arc-shaped steel plate is adjusted through the upper adjusting screw and the lower adjusting screw, so that the relative position of the primary winding and the secondary coil is adjusted, the primary winding is ensured to be in the center position of the secondary coil hole, the previous procedure is avoided when eccentricity is avoided, and the production efficiency is improved.
Description
Technical Field
The utility model relates to a mutual-inductor production technology technical field specifically is a current transformer coil adjustable structure.
Background
Current transformers of 10kV and above are usually cast with more than one secondary coil, often metering, measuring, protection coils.
When the coil is produced independently, the original fixing mode generally adopts the mode of binding the fixing plate and the secondary coil together, and the problems of eccentricity and the like are easy to occur after the die is installed. However, because the coil is fixed, the coil cannot be adjusted in time during die filling, and the coil returns to the previous working procedure for rework.
As shown in fig. 1, in the original fixing manner, from top to bottom, the mold is fixed with the primary winding by screws, the secondary coil is fixed with the fixing plate by the heat-shrinkable tape, and the fixing plate is fixed with the mold by screws, so that the relative position of the primary winding and the secondary coil is not adjustable, the primary winding is easily not in the middle of the hole of the secondary coil (as shown by a dotted line circle in fig. 2), and the primary winding is not adjustable on site and returns to the previous process for rework, and the fixing plate and the secondary coil are bound by the heat-shrinkable tape after being readjusted, so that production delay is caused.
SUMMERY OF THE UTILITY MODEL
To the above problem, the utility model aims to fix through pyrocondensation area, sticky tape etc. between former fixed plate and the coil, the problem of binding the back and just can not adjusting provides one kind and can adjust secondary coil from top to bottom to adjust primary winding and secondary coil's relative position, guarantee the adjustable structure of primary winding at the current transformer coil that secondary coil hole central point put. The technical scheme is as follows:
an adjustable structure of a current transformer coil comprises an arc-shaped steel plate, a fixing plate and a screw rod, wherein the concave surface of the arc-shaped steel plate faces upwards and is fixed below a secondary coil; the fixing plate is positioned below the arc-shaped steel plate and is fixedly connected with the die through a fixing bolt, and a strip-shaped hole is formed in the fixing plate; the screw rod is fixed at the bottom of the arc-shaped steel plate and penetrates through the strip-shaped hole to adjustably fix the arc-shaped steel plate and the fixing plate.
Furthermore, the two screw rods are respectively arranged on two sides of the axial center line of the bottom of the arc-shaped steel plate; the strip-shaped hole is arranged corresponding to the connecting line of the two screws.
Furthermore, the number of the arc-shaped steel plates and the number of the strip-shaped holes are set according to the number of the secondary coils.
Furthermore, the arc-shaped steel plate is fixed with the secondary coil through a heat-shrinkable belt.
The utility model has the advantages that: the utility model can conveniently adjust the position of the coil during the die-filling process, and the coil is placed in the middle, thereby ensuring the insulation size in each direction to be consistent; the height of the arc-shaped steel plate is adjusted through the upper adjusting screw and the lower adjusting screw, so that the relative position of the primary winding and the secondary coil is adjusted, the primary winding is ensured to be in the center position of the secondary coil hole, the previous procedure is avoided when eccentricity is avoided, and the production efficiency is improved.
Drawings
Fig. 1 is a schematic structural view of a conventional current transformer, in which (a) is a front view and (b) is a right view.
Fig. 2 is a schematic diagram of a case where the primary winding is not located in the middle of the secondary coil hole, and (a) is a front view and (b) is a right view.
Fig. 3 is a schematic view of the fixing structure of the present invention, wherein (a) is a front view and (b) is a right view.
Fig. 4 is a schematic structural diagram of the fixing plate of the present invention.
Fig. 5 is an overall schematic view (front view) of the adjustable structure of the current transformer coil of the present invention.
Fig. 6 is an overall schematic view (right side view) of the adjustable structure of the current transformer coil of the present invention.
In the figure: 1-a mould; 2-primary winding; 3-a secondary coil; 4, fixing a plate; 5-arc steel plate; 6-screw rod; 7-strip-shaped holes; 8-fixing the bolt.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments. The adjustable structure of the current transformer coil of the utility model comprises an arc-shaped steel plate 5, a fixed plate 4 and a screw 6; the concave surface of the arc-shaped steel plate 5 faces upwards and is fixed below the secondary coil 3; the fixing plate 4 is positioned below the arc-shaped steel plate 5 and is fixedly connected with the die 1 through a fixing bolt 8, and a strip-shaped hole 7 is formed in the fixing plate 4; the screw 6 is fixed at the bottom of the arc-shaped steel plate 5, penetrates through the strip-shaped holes 7 to adjustably fix the arc-shaped steel plate 5 and the fixing plate 4, and the height of the secondary coil is adjusted through the upper and lower adjusting screws 6.
As shown in fig. 3 and 4, two screws 6 are respectively disposed on two sides of the axial center line of the bottom of the arc-shaped steel plate 5, and the strip-shaped hole 7 is disposed corresponding to a connecting line of the two screws 6.
The utility model discloses the quantity of arc steel sheet 5 and bar hole 7 is all established according to secondary coil 3's quantity.
The utility model discloses a new fixed mode is done two longer bar holes 7 in fixed plate 4 departments, with a plurality of secondary coil 3 respectively with the fixed arc steel sheet that has two screw rods 6 in the pyrocondensation area, can reach about the adjustment coil, upper and lower insulation distance according to the position between actual conditions adjusting screw rod 6 and the fixed plate 4 during the die-filling.
As shown in fig. 5 and 6, from top to bottom, the die 1 and the primary winding 2 are fixed by screws, the secondary coil 3 and the arc-shaped steel plate 5 are fixed by heat-shrinkable tapes, the arc-shaped steel plate 5 and the fixing plate 4 are fixed by screws 6 which can be adjusted up and down, left and right, and the fixing plate 4 and the die 1 are fixed by fixing bolts 8. Therefore, the relative position of the primary winding 2 and the secondary winding 3 can be adjusted by adjusting the relative position of the arc-shaped steel plate 5 and the fixing plate 4, the central position of the primary winding 2 in the hole of the secondary winding 3 is ensured, the previous process is avoided when eccentricity is avoided, and the production efficiency is improved.
Claims (4)
1. An adjustable structure of a current transformer coil is characterized by comprising an arc-shaped steel plate (5), a fixing plate (4) and a screw rod (6); the concave surface of the arc-shaped steel plate (5) faces upwards and is fixed below the secondary coil (3); the fixing plate (4) is positioned below the arc-shaped steel plate (5) and is fixedly connected with the die (1) through a fixing bolt (8), and a strip-shaped hole (7) is formed in the fixing plate (4); the screw rod (6) is fixed at the bottom of the arc-shaped steel plate (5) and penetrates through the strip-shaped hole (7) to adjustably fix the arc-shaped steel plate (5) and the fixing plate (4).
2. The adjustable coil structure of the current transformer according to claim 1, wherein the number of the screws (6) is two, and the screws are respectively arranged on two sides of the axial center line of the bottom of the arc-shaped steel plate (5); the strip-shaped hole (7) is arranged corresponding to the connecting line of the two screw rods (6).
3. The adjustable current transformer coil structure according to claim 1, wherein the number of the arc-shaped steel plates (5) and the number of the strip-shaped holes (7) are set according to the number of the secondary coils (3).
4. The current transformer coil adjustable structure according to claim 1, characterized in that the arc-shaped steel plate (5) is fixed with the secondary coil (3) by a heat-shrinkable tape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022588771.0U CN213877816U (en) | 2020-11-11 | 2020-11-11 | Adjustable structure of current transformer coil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022588771.0U CN213877816U (en) | 2020-11-11 | 2020-11-11 | Adjustable structure of current transformer coil |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213877816U true CN213877816U (en) | 2021-08-03 |
Family
ID=77054386
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022588771.0U Expired - Fee Related CN213877816U (en) | 2020-11-11 | 2020-11-11 | Adjustable structure of current transformer coil |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213877816U (en) |
-
2020
- 2020-11-11 CN CN202022588771.0U patent/CN213877816U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210803 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |