CN204720304U - A kind of current transformer - Google Patents
A kind of current transformer Download PDFInfo
- Publication number
- CN204720304U CN204720304U CN201520141817.0U CN201520141817U CN204720304U CN 204720304 U CN204720304 U CN 204720304U CN 201520141817 U CN201520141817 U CN 201520141817U CN 204720304 U CN204720304 U CN 204720304U
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- CN
- China
- Prior art keywords
- copper bar
- current transformer
- insulation shell
- coil
- shaped copper
- Prior art date
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- Expired - Fee Related
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Abstract
The utility model discloses a kind of current transformer, comprise coil, U-shaped copper bar, described U-shaped copper bar is through described coil, described current transformer also comprises an insulation shell, described coil is arranged in described insulation shell, the both sides inwall that described insulation shell is relative is respectively arranged with copper bar location notch, and two supporting leg correspondences of described U-shaped copper bar are arranged in described copper bar location notch; In described insulation shell, described coil, gap location between U-shaped copper bar and the inwall of described insulation shell are provided with epoxy resin filling material.The current transformer that the utility model provides, insulation effect is good, copper bar location is convenient and coil and copper bar good fixing effect.
Description
Technical field
The utility model relates to electric elements technical field, is specifically related to a kind of current transformer.
Background technology
The effect of current transformer primary current larger for numerical value can be converted to the less secondary current of numerical value by certain no-load voltage ratio, is used for carrying out protecting, measurement etc.Current transformer principle is according to electromagnetic induction principle.Current transformer is made up of the iron core closed and winding.
In prior art, the manufacture craft of current transformer is mainly: fixed by coil binding blend compounds band, is then wound around insulation in the outside of coil with adhesive tape, then insulate at adhesive tape overcoat heat-shrinkable T bush, again U-shaped copper bar is passed coil, finally with gluing process, coil and U-shaped copper bar point glue are fixed.By the current transformer that this technique completes, insulate mainly through adhesive tape and heat-shrinkable T bush realization, insulation effect is bad, and the mechanical strength of current transformer is low; U-shaped copper bar, through after coil, is mainly located by the eyesight of operator, easily crooked, and coil and the fixing of U-shaped copper bar adopt some glue to fix, and easily loosen, so affect current transformer quality.
Utility model content
The purpose of this utility model overcomes above-mentioned shortcoming, provides that a kind of insulation effect is good, the convenient and current transformer of coil and copper bar good fixing effect in copper bar location.
The technical solution of the utility model is:
A kind of current transformer, comprise coil, U-shaped copper bar, described U-shaped copper bar is through described coil, described current transformer also comprises an insulation shell, described coil is arranged in described insulation shell, the both sides inwall that described insulation shell is relative is respectively arranged with copper bar location notch, and two supporting leg correspondences of described U-shaped copper bar are arranged in described copper bar location notch; In described insulation shell, described coil, gap location between U-shaped copper bar and the inwall of described insulation shell are provided with epoxy resin filling material.
Further, described copper bar location notch is groove structure.
Preferably, the width of the width of described groove and the supporting leg of described U-shaped copper bar is suitable.
Further, the form fit of the shape of described copper bar location notch and the supporting leg of described U-shaped copper bar.
Further, described copper bar location notch and described insulation shell global formation.
Further, described insulation shell is glue shell.
Further, described coil connects electric wire.
The current transformer that the utility model provides, tool has the following advantages:
1, the current transformer that provides of the utility model, insulation effect is good, and current transformer bulk strength is high.The current transformer that the utility model provides, arrange an insulation shell outside coil, after copper bar installs, the gap location of coil, U-shaped copper bar and insulation shell inwall arranges insulation filler, namely current transformer is mainly through insulation shell and the insulation of epoxy resin filling material, and insulation effect is good.And because using insulation shell as main body insulating barrier, add the overall mechanical strength of current transformer.
2, the current transformer that provides of the utility model, copper bar location is convenient, and it is firm to install, and not easily loosens.The current transformer that the utility model provides, in insulation shell relative both sides, inwall is respectively arranged with copper bar location notch, makes two supporting leg correspondences of U-shaped copper bar be arranged in corresponding copper bar location notch, and it is convenient, accurate that U-shaped copper bar installs location; Fill the space in insulation shell after copper bar location again with epoxy resin filling material, thus realize fixing of U-shaped copper bar and coil, fixed, not easily loosen during use.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme of the utility model embodiment, below the accompanying drawing used required in describing embodiment is briefly described, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation of the utility model current transformer;
Fig. 2 is the structural representation of insulation shell in Fig. 1;
Fig. 3 is the plan structure schematic diagram of Fig. 1;
Reference numeral: 1-coil, 2-U shape copper bar, 3-insulation shell, 4-copper bar location notch, 5-epoxy resin filling material, 6-electric wire.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technical scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
Embodiment
Composition graphs 1, Fig. 2, Fig. 3, a kind of current transformer, comprise coil 1, U-shaped copper bar 2, U-shaped copper bar 2 is through coil 1, current transformer also comprises an insulation shell 3, and coil 1 is arranged in 1 insulation shell 3, and namely insulation shell is for wrapping up coil, the both sides inwall that insulation shell 3 is relative is respectively arranged with copper bar location notch 4, and two supporting leg correspondences of U-shaped copper bar 2 are arranged in copper bar location notch 4; In insulation shell 3, line 1 encloses, gap location between U-shaped copper bar 2 and the inwall of insulation shell 3 body is provided with epoxy resin filling material 5.The supporting leg of U-shaped copper bar refers to two poles that U-shaped copper bar is parallel to each other.
The current transformer that the utility model provides, arrange an insulation shell outside coil, after copper bar installs, the gap location of coil, U-shaped copper bar and insulation shell inwall arranges insulation filler, namely current transformer is mainly through insulation shell and the insulation of epoxy resin filling material, and insulation effect is good.And because using insulation shell as main body insulating barrier, add the overall mechanical strength of current transformer.
The current transformer that the utility model provides, in insulation shell both sides, inwall is respectively arranged with copper bar location notch, makes two supporting leg correspondences of U-shaped copper bar be arranged in corresponding copper bar location notch, and it is convenient, accurate that U-shaped copper bar installs location; Fill the space in insulation shell after copper bar location again with epoxy resin filling material, thus realize fixing of U-shaped copper bar and coil, fixed, not easily loosen during use.
In the utility model, copper bar location notch 4 is groove structure, and namely the supporting leg of U-shaped copper bar is arranged in groove; Preferably, the width of the width of groove and the supporting leg of U-shaped copper bar is suitable, makes copper bar location notch well can coordinate installation with U-shaped copper bar, further enhancing the fixed effect of U-shaped copper bar.In practical application, the form fit of the supporting leg of the shape of copper bar location notch 4 and U-shaped copper bar 2 can be arranged, when groove is contacted with the supporting leg of U-shaped copper bar, contact area increases, and the locating effect of U-shaped copper bar is better.
In the utility model, copper bar location notch 4 and insulation shell 3 global formation, make the structure of copper bar location notch more stable.In actual applications, copper bar location notch and insulation shell also can combine by the mode such as welding.
Preferably, insulation shell 3 is glue shell, has higher mechanical strength and insulation property.
In the utility model, coil 1 is pricked electric wire 6, for connected load.
The current transformer that the utility model provides, manufacture craft is as follows: by coil binding; By U-shaped copper bar through coil; Coil and U-shaped copper bar are loaded in insulation shell, and two of U-shaped copper bar supporting legs are inserted in corresponding copper bar location notch respectively, make U-shaped copper bar registration; Finally with epoxy resin filling material, the space in insulation shell is full of, makes coil insulation.Use this work to make current transformer, production efficiency is high.
The insulation shell that the utility model provides is preferably polygonized structure, and convenient processing, also conveniently arranges copper bar location notch.
The foregoing is only preferred embodiment of the present utility model, not in order to limit the utility model, all any amendments, equivalent replacement etc. done in protection range of the present utility model, all should be included within protection range of the present utility model.
Claims (7)
1. a current transformer, comprise coil, U-shaped copper bar, described U-shaped copper bar is through described coil, it is characterized in that, described current transformer also comprises an insulation shell, described coil is arranged in described insulation shell, and the both sides inwall that described insulation shell is relative is respectively arranged with copper bar location notch, and two supporting leg correspondences of described U-shaped copper bar are arranged in described copper bar location notch; In described insulation shell, described coil, gap location between U-shaped copper bar and the inwall of described insulation shell are provided with epoxy resin filling material.
2. current transformer according to claim 1, is characterized in that, described copper bar location notch is groove structure.
3. current transformer according to claim 2, is characterized in that, the width of the width of described groove and the supporting leg of described U-shaped copper bar is suitable.
4. current transformer according to claim 3, is characterized in that, the form fit of the shape of described copper bar location notch and the supporting leg of described U-shaped copper bar.
5. current transformer according to claim 1, is characterized in that, described copper bar location notch and described insulation shell global formation.
6. current transformer according to claim 1, is characterized in that, described insulation shell is glue shell.
7. current transformer according to any one of claim 1 to 6, is characterized in that, described coil connects electric wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520141817.0U CN204720304U (en) | 2015-03-13 | 2015-03-13 | A kind of current transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520141817.0U CN204720304U (en) | 2015-03-13 | 2015-03-13 | A kind of current transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204720304U true CN204720304U (en) | 2015-10-21 |
Family
ID=54319280
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520141817.0U Expired - Fee Related CN204720304U (en) | 2015-03-13 | 2015-03-13 | A kind of current transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204720304U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105977005A (en) * | 2016-06-12 | 2016-09-28 | 嘉兴威士顿电子科技有限公司 | Assembly method of current transformer and current transformer |
-
2015
- 2015-03-13 CN CN201520141817.0U patent/CN204720304U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105977005A (en) * | 2016-06-12 | 2016-09-28 | 嘉兴威士顿电子科技有限公司 | Assembly method of current transformer and current transformer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| DD01 | Delivery of document by public notice |
Addressee: Changsha Weitai Plastic Technology Co., Ltd. Document name: Notification to Pay the Fees |
|
| DD01 | Delivery of document by public notice | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151021 Termination date: 20190313 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |