CN102360786A - Iron core structure of current transformer - Google Patents
Iron core structure of current transformer Download PDFInfo
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- CN102360786A CN102360786A CN2011102957818A CN201110295781A CN102360786A CN 102360786 A CN102360786 A CN 102360786A CN 2011102957818 A CN2011102957818 A CN 2011102957818A CN 201110295781 A CN201110295781 A CN 201110295781A CN 102360786 A CN102360786 A CN 102360786A
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- lamination
- current transformer
- individuals
- iron core
- core structure
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Abstract
The invention discloses an iron core structure of a current transformer. The structure is formed by overlapping multiple laminations; each lamination comprises two matched lamination individuals; two lamination individuals are assembled into a closed ring; the lamination individual is of a U-shaped structure; an oblique splicing surface is arranged at the top of one side of the lamination individual; a convex clamp hook is arranged on the inner side of the splicing surface, and a concave clamp groove is arranged at the top of the other side of the lamination individual; and an oblique splicing surface is arranged on the inner side of the clamp groove. In the iron core structure of a current transformer, as the lamination is of U-shaped structure and the joint of the lamination individuals is designed in clamp lock connection, the riveting or welding process is reduced, and the production efficiency is remarkably improved. In addition, as the splicing surface of the lamination individuals is in bevel connection, the gap of the splicing surface jointing two lamination individuals can be made tiny, thus the magnetic gap of the iron core is greatly reduced, the input/output characteristics of the transformer are improved, and the comprehensive characteristics of the transformer are more close to those of an ideal transformer.
Description
Technical field
The present invention relates to a kind of current transformer, relate in particular to a kind of core structure of current transformer.
Background technology
At present, higher to the required precision of various instrument transformers, demand is also increasing along with the continuous development of intelligent grid, the wide low pressure instrument transformer of the big use of use amount especially.Transformer iron core structure commonly used with stacked be main, structures such as O type and L type are arranged, O type mutual inductor coil coiling efficient is low; L type mutual inductor coil coiling efficient is high, but the iron core sheet inserting efficiency of assembling is low, also need rivet or welding sequence; Can not raise the efficiency effectively equally, reduce cost.In addition, the amalgamation face of L sections core is to face directly, because problems such as the accuracy of manufacture must leave certain gap at amalgamation face place, has caused bigger magnetic gap to exist, and is unfavorable for the raising of instrument transformer characteristic.
Summary of the invention
To the problems referred to above, the object of the present invention is to provide a kind of current transformer core structure, can efficiently solve in the prior art that transformer iron core production efficiency is low, accuracy of manufacture difference and the low problem of instrument transformer composite characteristic.
The objective of the invention is to realize through following technical scheme:
A kind of current transformer core structure, it has the multi-disc lamination to be formed by stacking, and each lamination comprises the lamination monomer of two cooperations; Two lamination monomers are assembled into airtight annular, and wherein, said lamination monomer is a U type structure; And a side roof part of said lamination monomer is provided with oblique amalgamation face; The inboard of said amalgamation face is provided with protruding trip, corresponding to the opposite side top of lamination monomer the draw-in groove of depression is set, and the inboard of said draw-in groove is provided with oblique amalgamation face.
Especially, the arranged outside that said lamination monomer is provided with the amalgamation face on the side of trip has protruding guide part, is provided with the gathering sill of depression corresponding to the inboard of the amalgamation face of the opposite side of lamination monomer.
Beneficial effect of the present invention does; The lamination of said current transformer core structure is set to U type structure; And be designed to kayser at lamination monomer joint and connect; Compared with prior art both keep the high efficiency of L molded lines circle coiling, reduced riveted joint or welding sequence again, increased substantially production efficiency.And the amalgamation face of lamination monomer is that the inclined-plane connects, and can make very little that the amalgamation face gap of two butt joints does, even disappear, thereby the magnetic gap of iron core is reduced greatly, improves the input-output characteristic of instrument transformer, and the composite characteristic of instrument transformer is more near desirable instrument transformer.
Description of drawings
According to accompanying drawing and embodiment the present invention is done further explain below.
Fig. 1 is the perspective view of the lamination monomer of current transformer core structure of the present invention;
Fig. 2 is the structural representation of current transformer core structure of the present invention.
Among the figure:
1, lamination monomer; 2, trip; 3, amalgamation face; 4, draw-in groove; 5, gathering sill, 6, guide part; 7, lamination; 8, coil rack; 9, coil.
Embodiment
Please with reference to shown in Figure 1, Fig. 1 is the structural representation of the lamination monomer of current transformer core structure of the present invention; In present embodiment, a kind of current transformer core structure has multi-disc lamination 7 to be formed by stacking, and each lamination 7 comprises two amalgamations lamination monomer 1 together; Two lamination monomers 1 are assembled into airtight annular, and said lamination monomer 1 is a U type structure, and a side roof part of said lamination monomer 1 is provided with oblique amalgamation face 3; The inboard of said amalgamation face 3 is provided with protruding trip 2, corresponding to the opposite side top of lamination monomer 1 draw-in groove 4 of depression is set, and the inboard of said draw-in groove 4 is provided with oblique amalgamation face 3; The amalgamation face 3 of said lamination monomer 1 is that the inclined-plane connects; Can make very little that the amalgamation face gap of two butt joints does, even disappear, thereby the magnetic gap of iron core is reduced greatly; Improve the input-output characteristic of instrument transformer, the composite characteristic of instrument transformer is more near desirable instrument transformer.
In order to make two lamination monomer 1 reliable connection is one; The arranged outside that said lamination monomer 1 is provided with the amalgamation face 3 on the side of trip 2 has protruding guide part 6, is provided with the gathering sill 7 of depression corresponding to the inboard of the amalgamation face 3 of the opposite side of lamination monomer 1.
See also shown in Figure 2; Fig. 2 is the structural representation of current transformer core structure of the present invention; Before iron core insertion mutual inductor coil skeleton 8 does not arrive final rigging position; Trip 2 can produce an interference fit point with draw-in groove 4, pass through this interference point, must apply certain power in lamination 7 outsides and just can make iron core arrive final rigging position.Trip 2 is connected with the kayser of draw-in groove 4, realizes that instrument transformer does not have riveted joint or the solderless tipping is joined, and has improved production efficiency.
Claims (2)
1. current transformer core structure, it has the multi-disc lamination to be formed by stacking, and each lamination comprises the lamination monomer of two cooperations; Two lamination monomers are assembled into airtight annular; It is characterized in that: said lamination monomer is a U type structure, and a side roof part of said lamination monomer is provided with oblique amalgamation face, and the inboard of said amalgamation face is provided with protruding trip; Corresponding to the opposite side top of lamination monomer the draw-in groove of depression is set, the inboard of said draw-in groove is provided with oblique amalgamation face.
2. current transformer core structure according to claim 1; It is characterized in that: the arranged outside that said lamination monomer is provided with the amalgamation face on the side of trip has protruding guide part, is provided with the gathering sill of depression corresponding to the inboard of the amalgamation face of the opposite side of lamination monomer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102957818A CN102360786A (en) | 2011-09-27 | 2011-09-27 | Iron core structure of current transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102957818A CN102360786A (en) | 2011-09-27 | 2011-09-27 | Iron core structure of current transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102360786A true CN102360786A (en) | 2012-02-22 |
Family
ID=45586077
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011102957818A Pending CN102360786A (en) | 2011-09-27 | 2011-09-27 | Iron core structure of current transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102360786A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105551770A (en) * | 2016-02-03 | 2016-05-04 | 无锡多普力科技有限公司 | Superposed current transformer core |
| CN105652068A (en) * | 2016-01-25 | 2016-06-08 | 宁波南车时代传感技术有限公司 | Primary coil skeleton |
| CN108922748A (en) * | 2018-08-14 | 2018-11-30 | 无锡智卓电气有限公司 | A kind of current transformer |
-
2011
- 2011-09-27 CN CN2011102957818A patent/CN102360786A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105652068A (en) * | 2016-01-25 | 2016-06-08 | 宁波南车时代传感技术有限公司 | Primary coil skeleton |
| CN105652068B (en) * | 2016-01-25 | 2018-08-31 | 宁波中车时代传感技术有限公司 | A kind of primary coil skeleton |
| CN105551770A (en) * | 2016-02-03 | 2016-05-04 | 无锡多普力科技有限公司 | Superposed current transformer core |
| CN108922748A (en) * | 2018-08-14 | 2018-11-30 | 无锡智卓电气有限公司 | A kind of current transformer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120222 |