CN201315244Y - Fixing structure of baffle plate in shielding barrel for mutual inductor - Google Patents
Fixing structure of baffle plate in shielding barrel for mutual inductor Download PDFInfo
- Publication number
- CN201315244Y CN201315244Y CNU2008202207675U CN200820220767U CN201315244Y CN 201315244 Y CN201315244 Y CN 201315244Y CN U2008202207675 U CNU2008202207675 U CN U2008202207675U CN 200820220767 U CN200820220767 U CN 200820220767U CN 201315244 Y CN201315244 Y CN 201315244Y
- Authority
- CN
- China
- Prior art keywords
- baffle plate
- shielding cylinder
- ring
- retaining ring
- groove
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model relates to a fixing structure of a baffle plate in a shielding barrel for a mutual inductor. The structure comprises a shielding barrel and a baffle plate, wherein, a secondary winding is installed in the shielding barrel, the baffle plate is pressed on the secondary winding through a baffle plate fixing device on the wall of the shielding barrel, and the baffle plate fixing device is a retaining ring structure for holes. The retaining ring structure for holes comprises an annular retaining ring clipping slot arranged on the inner wall surface of the shielding barrel on the outer surface of the baffle plate and an annular open retaining ring clipped in the annular retaining ring clipping slot. The adoption of the baffle plate fixing structure solves the problem that the fixation of the baffle plate for the coil in the shielding barrel for the prior current mutual inductor is invalid. Meanwhile, the installation process also can be simplified, the operating efficiency is improved and the realization cost is reduced.
Description
Technical field
The utility model relates to the fixed structure of baffle plate in a kind of instrument transformer shielding cylinder.
Background technology
At present, 330kV SF
6A plurality of secondary winding are housed in the shielding cylinder of current transformer,, all need secondary winding is fixed with baffle plate for avoiding coil to move jeopardizing the safety of operation.See Fig. 1 and Fig. 2, existing baffle plate adopts the fixed structure of " L " type pressing plate fitted bolt more.I.e. outside certain distance punching in the position of shielding cylinder 1 internal fixation baffle plate 4, one side of " L " type pressing plate 6 is fixed on the inner wall surface of shielding cylinder 1 by screw 5, another side is installed bolt 7, manual adjustments bolt 7, make bolt head prop up baffle plate 4 to outer surface, power effect by bolt 7 fixes baffle plate 4, reaches the fixedly purpose of secondary winding.
Since baffle plate 4 only depend on bolt 7 fixing to outer surface, because of rocking or shake, " L " type pressing plate 6 can deform current transformer in transportation, bolt 7 can move back and buckle, and makes between baffle plate 4 and the bolt 7 generation become flexible and collide.Will make the fixing not firm of baffle plate 4 like this, secondary winding also just can't be fixed reliably, so that the possibility of solid failure takes place, and the example that occurs solid failure in the actual shipment has been arranged.Fact proved that the fixed structure of " L " type pressing plate fitted bolt can't retrain secondary winding fully, just can't guarantee that so also coil moves the security of operation that is jeopardized.
The utility model content
The purpose of this utility model provides the fixed structure of baffle plate in a kind of instrument transformer shielding cylinder, to improve the baffle plate reliability of fixation, solves the solid failure problem of the shielding cylinder interior loop baffle plate of current current transformer.
For achieving the above object, the utility model adopts following technical scheme:
The utility model comprises shielding cylinder and baffle plate, and secondary winding is housed in the shielding cylinder, and baffle plate is pressed on the secondary winding by the baffle fixing on the shielding barrel, and described baffle fixing is a hole back-up ring structure.
As further improvement of the utility model, described hole is made of the annular opening back-up ring that clamps in annular retaining ring draw-in groove that is provided with on the baffle plate outer surface shielding cylinder internal face and the annular retaining ring draw-in groove with the back-up ring structure.
As another kind of improvement the of the present utility model, the cross sectional shape of the annular retaining ring draw-in groove that is provided with on the shielding cylinder internal face can be arc groove or square groove, the cross sectional shape of annular opening back-up ring is corresponding to be circle or rectangle, requires the arc groove on the shielding cylinder internal face or the circle or the rectangle of square groove and annular opening back-up ring to match simultaneously.
The fixed structure of baffle plate in the instrument transformer shielding cylinder that the utility model provides, it is hole back-up ring structure, be that the annular opening back-up ring is snapped fitted in the annular retaining ring draw-in groove that is provided with on the baffle plate outer surface shielding cylinder internal face, make directly the contacting along the surface in circumferential edge to inner surface and baffle plate of annular opening back-up ring to outer surface.Such fixed structure contact-making surface is many, stressed even, bed knife is big, in transportation, even current transformer rocks or shakes, the annular opening back-up ring also can be fixed baffle plate by the fixation of annular retaining ring draw-in groove, and is safe and reliable, solved the baffle plate solid failure problem of current current transformer shielding cylinder interior loop.
In addition, this structure only snaps fitted in the annular retaining ring draw-in groove of shielding cylinder with the annular opening back-up ring, has optimized structure, and convenient mounting or dismounting have improved operating efficiency.Moreover this structure only needs grooving on the shielding cylinder internal face, and technology is simple, and it is also very easy that the annular opening back-up ring is made, and realized the cost reduction.
Description of drawings
Fig. 1 is the front view of existing instrument transformer shielding cylinder assembling;
Fig. 2 is the partial enlarged drawing of Fig. 1;
Fig. 3 is the front view of instrument transformer shielding cylinder assembling of the present utility model;
Fig. 4 is the partial enlarged drawing of Fig. 3.
Embodiment
In the utility model,, as shown in Figure 3 and Figure 4, form by shielding cylinder 1, current mutual inductor coil 2, packing ring 3, baffle plate 4 and annular opening back-up ring 8 for making the coil stationary in the shielding cylinder fastening reliable.Earlier shielding cylinder 1, current mutual inductor coil 2, packing ring 3 and baffle plate 4 are installed by matching requirements, then annular opening back-up ring 8 is snapped fitted in the annular retaining ring draw-in groove that is provided with on baffle plate 4 outer surface shielding cylinders 1 internal face, half just in time can snap fitted to annular opening back-up ring 8 in the annular retaining ring draw-in groove of shielding cylinder 1, and second half is directly the contacting along the surface in circumferential edge to outer surface to inner surface and baffle plate 4 of annular opening back-up ring 8 just.Meanwhile, annular opening back-up ring 8 can be fixed baffle plate 4 by the fixation of the annular retaining ring draw-in groove of shielding cylinder 1.
In the process that annular split washer 8 is installed, because of it has elasticity, can select proper implements that its circumference is compressed, unclamp when the method for promptly dwindling its diameter places it in the annular retaining ring draw-in groove position of shielding cylinder 1, annular opening back-up ring 8 can easily snap fitted in the draw-in groove like this.
See Fig. 4, the annular retaining ring draw-in groove that is provided with on the utility model shielding cylinder 1 internal face be shaped as arc groove, the cross sectional shape of annular opening back-up ring 8 is circular; Also can be with the cross sectional shape of the annular retaining ring draw-in groove that is provided with on shielding cylinder 1 internal face as the square groove, the cross sectional shape of annular opening back-up ring 8 is rectangle accordingly.The arc groove of the annular retaining ring draw-in groove of requirement shielding cylinder 1 or the circle or the rectangle of square groove and annular opening back-up ring 8 match.
Claims (4)
1. the fixed structure of baffle plate in the instrument transformer shielding cylinder, comprise shielding cylinder (1) and baffle plate (4), shielding cylinder is equipped with secondary winding in (1), baffle plate (4) is pressed on the secondary winding by the baffle fixing on shielding cylinder (1) inwall, it is characterized in that: described baffle fixing is a hole back-up ring structure.
2. the fixed structure of baffle plate in the instrument transformer shielding cylinder according to claim 1 is characterized in that: described hole is made of the annular opening back-up ring (8) that clamps in annular retaining ring draw-in groove that is provided with on baffle plate (4) outer surface shielding cylinder (1) internal face and the annular retaining ring draw-in groove with the back-up ring structure.
3. the fixed structure of baffle plate in the instrument transformer shielding cylinder according to claim 2, it is characterized in that: the cross sectional shape of described annular retaining ring draw-in groove is an arc groove, the cross sectional shape of annular opening back-up ring (8) is circular, and the circle of arc groove on the shielding cylinder (1) and annular opening back-up ring (8) matches.
4. the fixed structure of baffle plate in the instrument transformer shielding cylinder according to claim 2, it is characterized in that: the cross sectional shape of described annular retaining ring draw-in groove is the square groove, the cross sectional shape of annular opening back-up ring (8) is a rectangle, and the rectangle of square groove on the shielding cylinder (1) and annular opening back-up ring (8) matches.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202207675U CN201315244Y (en) | 2008-11-07 | 2008-11-07 | Fixing structure of baffle plate in shielding barrel for mutual inductor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202207675U CN201315244Y (en) | 2008-11-07 | 2008-11-07 | Fixing structure of baffle plate in shielding barrel for mutual inductor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201315244Y true CN201315244Y (en) | 2009-09-23 |
Family
ID=41127042
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008202207675U Expired - Fee Related CN201315244Y (en) | 2008-11-07 | 2008-11-07 | Fixing structure of baffle plate in shielding barrel for mutual inductor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201315244Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103522009A (en) * | 2013-09-28 | 2014-01-22 | 安徽省宁国市东波紧固件有限公司 | Check ring and processing method thereof |
-
2008
- 2008-11-07 CN CNU2008202207675U patent/CN201315244Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103522009A (en) * | 2013-09-28 | 2014-01-22 | 安徽省宁国市东波紧固件有限公司 | Check ring and processing method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20151231 Address after: South East of Pingdingshan city in Henan province 467001 No. 22 Patentee after: Pinggao Group Co., Ltd. Patentee after: Henan high General Electric Co., Ltd. Address before: South East of Pingdingshan city in Henan province 467001 No. 22 Patentee before: Pinggao Group Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090923 Termination date: 20171107 |