CN207441451U - Residual current transformer shading ring - Google Patents
Residual current transformer shading ring Download PDFInfo
- Publication number
- CN207441451U CN207441451U CN201721446049.5U CN201721446049U CN207441451U CN 207441451 U CN207441451 U CN 207441451U CN 201721446049 U CN201721446049 U CN 201721446049U CN 207441451 U CN207441451 U CN 207441451U
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- shielding
- current transformer
- residual current
- ring
- ring body
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Abstract
The utility model provides a kind of residual current transformer shading ring, and including a shielding ring body, the shielding ring body is wound by a shielding strip is tightly stacked；The first end of the shielding strip is fixedly welded on an inner ring wall of the shielding ring body；The second end of the shielding strip is fixedly welded in a collar wall of the shielding ring body.A kind of residual current transformer shading ring of the utility model, it is convenient to install and use, and has the advantages that simple in structure, the cost degree of consistency is high and stability is good.
Description
Technical field
The utility model is related to shading ring field more particularly to a kind of residual current transformer shading rings.
Background technology
At present, the mutual inductance phenomenon of the coil in residual current transformer in order to prevent, generally can all set in the inner ring of coil
Put shading ring, but existing shading ring is generally enclosed by hand by the shielding strip of strip around being formed；Low production efficiency is installed and used not
Just；And the uniformity of finished product is poor, easily generates error, quality stability is poor.
The content of the invention
Deficiency in for the above-mentioned prior art, the utility model provide a kind of residual current transformer shading ring, installation
It is easy to use, and have the advantages that simple in structure, the cost degree of consistency is high and stability is good.
To achieve these goals, the utility model provides a kind of residual current transformer shading ring, including a shading ring
Body, the shielding ring body are wound by a shielding strip is tightly stacked；The first end of the shielding strip is fixedly welded on institute
On the inner ring wall for stating shielding ring body；The second end of the shielding strip is fixedly welded on a collar wall of the shielding ring body
On.
Preferably, the shielding ring body forms multiple heat emission holes.
Preferably, the heat emission hole is uniformly distributed along the circumferential direction of the shielding ring body.
Preferably, the shielding strip uses silicon steel sheet.
Preferably, the first end of the shielding strip forms one first location structure to cooperate with the inner ring wall；Institute
The second end and the collar wall for stating shielding strip form one second location structure to cooperate.
Preferably, the first end of the shielding strip is neighbouring adjacent to the one side of the inner ring wall and the second end of the shielding strip
The collar wall is respectively fixed with an adhered layer on one side.
Preferably, the stickup layer surface is covered with a release paper.
The utility model makes it have following advantageous effect as a result of above technical scheme：
The first end of shielding strip is fixedly welded on inner ring wall；The second end of shielding strip is fixedly welded in collar wall；It protects
The stability of the structure of the residual current transformer shading ring of the present embodiment has been demonstrate,proved, need to only be directly plugged into correspondingly-sized when mounted
Coil in.Shielding ring body, which forms multiple heat emission holes, can prevent from being sheathed on the present embodiment residual current transformer shading ring
Coil overheat during the work time, ensure the normal work of coil.Heat emission hole is uniformly distributed along the circumferential direction of shielding ring body, makes
The heat dissipation effect of coil must be more uniformly distributed.The use of first location structure and the second location structure or adhered layer and release paper
Using so that shielding strip can easily ensure structural stability after shielding ring body is wound before being welded and fixed, and protect
Demonstrate,prove the quality of welding and the uniformity of product.
Description of the drawings
Fig. 1 is the structure diagram of the residual current transformer shading ring of the utility model embodiment；
Fig. 2 is the structural representation when residual current transformer shading ring of the utility model embodiment is installed in coil
Figure.
Specific embodiment
Below according to attached drawing 1 and Fig. 2, the preferred embodiment of the utility model is provided, and is described in detail, is enabled more preferable
Ground understands the function of the utility model, feature.
It please refers to Fig.1 and Fig. 2, a kind of residual current transformer shading ring of the utility model embodiment is shielded including one
Ring body 1, shielding ring body 1 are wound by a shielding strip 11 is tightly stacked；The first end 111 of shielding strip is fixedly welded on screen
It covers on an inner ring wall 12 of ring body 1；The second end 112 of shielding strip is fixedly welded on a collar wall 13 of shielding ring body 1
On.In the present embodiment, shielding strip 11 uses silicon steel sheet.
The first end 111 of shielding strip is fixedly welded on inner ring wall 12；The second end 112 of shielding strip is fixedly welded on outer ring
On wall 13；It ensure that the stability of the structure of the residual current transformer shading ring of the present embodiment, only need to directly fill in when mounted
In the coil 2 for entering correspondingly-sized.
In the present embodiment, shielding ring body 1 forms multiple heat emission hole (not shown).Heat emission hole edge shielding ring body 1
It is circumferential uniformly distributed.
Shielding ring body 1, which forms multiple heat emission holes, can prevent from being sheathed on the line of the present embodiment residual current transformer shading ring
Circle 2 overheats during the work time, ensures the normal work of coil 2.Heat emission hole is uniformly distributed along the circumferential direction of shielding ring body 1, makes
The heat dissipation effect of coil 2 must be more uniformly distributed.
The first end 111 of shielding strip forms the one first location structure (not shown) to cooperate with inner ring wall 12；Screen
The second end 112 and collar wall 13 for covering item form one second location structure to cooperate.
In other embodiments, the first end 111 of shielding strip is adjacent adjacent to the one side of inner ring wall and the second end 112 of shielding strip
Nearly collar wall 13 is respectively fixed with an adhered layer (not shown) on one side.Paste layer surface covered with a release paper (in figure not
Show).
The use of the use of first location structure and the second location structure or adhered layer and release paper so that shielding strip 11 exists
It can easily ensure structural stability before being welded and fixed after being wound shielding ring body 1, ensure quality and the production of welding
The uniformity of product.
The utility model is described in detail above in association with attached drawing embodiment, those skilled in the art can root
Many variations example is made to the utility model according to above description.Thus, some details in embodiment should not be formed to this practicality
New restriction, the utility model will be using the scopes that the appended claims define as the scope of protection of the utility model.
Claims (7)
1. a kind of residual current transformer shading ring, which is characterized in that including a shielding ring body, the shielding ring body is by one
Shielding strip is tightly stacked to be wound；The first end of the shielding strip is fixedly welded on an inner ring wall of the shielding ring body
On；The second end of the shielding strip is fixedly welded in a collar wall of the shielding ring body.
2. residual current transformer shading ring according to claim 1, which is characterized in that the shielding ring body forms more
A heat emission hole.
3. residual current transformer shading ring according to claim 2, which is characterized in that the heat emission hole is along the shielding
The circumferential direction of ring body is uniformly distributed.
4. residual current transformer shading ring according to claim 3, which is characterized in that the shielding strip uses silicon steel
Piece.
5. according to Claims 1 to 4 any one of them residual current transformer shading ring, which is characterized in that the shielding strip
First end and the inner ring wall form one first location structure to cooperate；The second end of the shielding strip and the outer ring
Wall forms one second location structure to cooperate.
6. according to Claims 1 to 4 any one of them residual current transformer shading ring, which is characterized in that the shielding strip
First end adjacent to the inner ring wall and the shielding strip second end adjacent to the collar wall while fix respectively
There is an adhered layer.
7. residual current transformer shading ring according to claim 6, which is characterized in that it is described stickup layer surface covered with
One release paper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721446049.5U CN207441451U (en) | 2017-11-02 | 2017-11-02 | Residual current transformer shading ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721446049.5U CN207441451U (en) | 2017-11-02 | 2017-11-02 | Residual current transformer shading ring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207441451U true CN207441451U (en) | 2018-06-01 |
Family
ID=62290680
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721446049.5U Active CN207441451U (en) | 2017-11-02 | 2017-11-02 | Residual current transformer shading ring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207441451U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112034230A (en) * | 2020-07-21 | 2020-12-04 | 华北电力大学 | Current sensor with spiral shielding shell |
| CN112198357A (en) * | 2020-07-21 | 2021-01-08 | 华北电力大学 | Current sensor with tape-wound shielding housing |
-
2017
- 2017-11-02 CN CN201721446049.5U patent/CN207441451U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112034230A (en) * | 2020-07-21 | 2020-12-04 | 华北电力大学 | Current sensor with spiral shielding shell |
| CN112198357A (en) * | 2020-07-21 | 2021-01-08 | 华北电力大学 | Current sensor with tape-wound shielding housing |
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