CN104916423A - Secondary coil casting positioning structure for current transformer - Google Patents

Secondary coil casting positioning structure for current transformer Download PDF

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Publication number
CN104916423A
CN104916423A CN201510306999.7A CN201510306999A CN104916423A CN 104916423 A CN104916423 A CN 104916423A CN 201510306999 A CN201510306999 A CN 201510306999A CN 104916423 A CN104916423 A CN 104916423A
Authority
CN
China
Prior art keywords
level coil
coil
current transformer
locating piece
protected
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.)
Pending
Application number
CN201510306999.7A
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Chinese (zh)
Inventor
蔡澍
秦江峰
张洪宣
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
CHONGQING HUAHONG INSTRUMENT Co Ltd
Original Assignee
CHONGQING HUAHONG INSTRUMENT Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by CHONGQING HUAHONG INSTRUMENT Co Ltd filed Critical CHONGQING HUAHONG INSTRUMENT Co Ltd
Priority to CN201510306999.7A priority Critical patent/CN104916423A/en
Publication of CN104916423A publication Critical patent/CN104916423A/en
Pending legal-status Critical Current

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Abstract

The invention discloses a secondary coil casting positioning structure for a current transformer. The secondary coil casting positioning structure comprises a measuring level coil and a protecting level coil which are arranged in parallel with the same axis, wherein a positioning block for positioning the measuring level coil and the protecting level coil simultaneously is arranged on the sides of the measuring level coil and the protecting level coil; the positioning block is an unsaturated epoxy resin casting block or a polyurethane casting block; and coil end wires of the measuring level coil and the protecting level coil are led out from the side part of the positioning block. The secondary coil casting positioning structure is novel in structure and simple in manufacturing technology, and a complex binding technology is not needed for the measuring level coil and the protecting level coil during integral casting of the current transformer, so that the integral manufacturing technology is greatly simplified, the production efficiency is high, and the manufacturing precision is high.

Description

Current Transformer Secondary coil cast location structure
Technical field
The present invention relates to a kind of Current Transformer Secondary coil cast location structure, belong to current transformer manufacturing technology field.
Background technology
Current transformer is in manufacturing process; current production method is substantially all by measurement level coil, protected level coil and primary winding one moulding by casting; before moulding by casting; relocate in mould after need bundling measurement level coil, protected level coil and primary winding; to ensure the stable relative position relation measured after being cast between level coil, protected level coil and primary winding; complicated and the low precision of colligation; the casting quality of product can not be guaranteed, and the later stage affecting product normally works.
Summary of the invention
For above-mentioned weak point of the prior art; the present invention aims to provide a kind of Current Transformer Secondary coil cast location structure; its novel structure; manufacture craft is simple; do not need when carrying out current transformer and being integrated poured to carry out complicated colligation to measurement level coil, protected level coil; enormously simplify process for integrally manufacturing, production efficiency is high, and it is high to make precision.
To achieve these goals; technical scheme of the present invention: a kind of Current Transformer Secondary coil cast location structure; it comprises and has same axis and the measurement level coil, the protected level coil that are set up in parallel; described measurement level coil, protected level coil sides have a locating piece simultaneously positioned this measurement level coil, protected level coil; this locating piece is epoxy unsaturated-resin castable or cast polyurethane block, and the end winding wire of described measurement level coil, protected level coil is drawn by described locating piece sidepiece.
Further, described locating piece is rectangular structure, and described measurement level coil, protected level coiler part are embedded in the same large plane of this locating piece, and the axis of this measurement level coil, protected level coil and this large plane parallel.
Further, the axis setting direction of described measurement level coil, protected level coil is consistent with the length direction of described locating piece.
Further, described measurement level coil, the protected level coil height embedded in described locating piece are less than 1/4 times of described measurement level coil or protected level coil diameter.
Further, between described measurement level coil and protected level coil, there is gap.
Further, described locating piece is provided with positioning screw hole.
Beneficial effect of the present invention: measurement level coil, protected level coil are located by the such as locating piece such as epoxy unsaturated-resin castable or cast polyurethane block simultaneously; making when carrying out integrated poured to current transformer, simplifying the binding positioning process to measuring level coil, protected level coil etc.In fact overall, this invention novel structure, manufacture craft is simple, does not need to carry out complicated colligation to measurement level coil, protected level coil when carrying out current transformer and being integrated poured, and enormously simplify process for integrally manufacturing, production efficiency is high, and it is high to make precision.
Accompanying drawing explanation
Fig. 1 is structural representation sketch of the present invention.
Embodiment
The present invention is further described below in conjunction with specific embodiment and accompanying drawing.
A kind of Current Transformer Secondary coil cast location structure as described in Figure 1; it comprises and has same axis and the measurement level coil 1, the protected level coil 2 that are set up in parallel; described measurement level coil 1, protected level coil 2 sidepiece have a locating piece 3 simultaneously positioned this measurement level coil 1, protected level coil 2; this locating piece 3 is epoxy unsaturated-resin castable or cast polyurethane block, and the end winding wire 4 of described measurement level coil 1, protected level coil 2 is drawn by described locating piece 3 sidepiece.
Locating piece 3 in the present invention is epoxy unsaturated-resin castable or the cast polyurethane block of epoxy unsaturated-resin or polyurethane material cast.Concrete operations technique is by measurement level coil 1, protected level coil 2 is first positioned in mould or casting mold, keep the normal working clearance between the two, cast epoxy unsaturated-resin or polyurethane material are to form locating piece 3, and then ensure be specially primary winding to current transformer is integrated poured, Relatively orientation when secondary coil is integrated poured between each coil, cast away tradition to measurement level coil 1, protected level coil 2 etc. carries out cluster locate mode, ensure that the integrated poured quality to current transformer, simplify the positioning process between the front each coil of cast, and the material that the guide vane end stop 3 positioned adopts carries out integrated poured material as epoxy unsaturated-resin or polyurethane material are the later stage to current transformer, do not affect casting quality.
For the structure of locating piece 3, this locating piece 3 can be rectangular structure, or other is cube structure such as, trapezium structure etc., as long as can ensure that the position positioning instant measured between level coil 1 and protected level coil 2 can, this measurement level coil 1, protected level coil 2 part is embedded in the same large plane of this locating piece 3, and this measurement level coil 1, the axis of protected level coil 2 and this large plane parallel, preferred described measurement level coil 1, the axis setting direction of protected level coil 2 is consistent with the length direction of described locating piece 3, be convenient on the one hand measure level coil 1, the position location of protected level coil 2 in mould or casting mold, on the other hand, facilitate whole secondary coil to pour into a mould location structure to locate with the cast of primary winding later.
And measure level coil 1, protected level coil 2 height embedded in described locating piece 3 is less than described measurement level coil 1 or protected level coil 2 diameter 1/4 times; the most important thing is; the ring skeleton centre bore of measurement level coil 1, protected level coil 2 can not be blocked by locating piece 3, so that arrange the location of primary winding when carrying out current transformer and being integrated poured.
Between measurement level coil 1 and protected level coil 2, there is gap, to ensure that the resin when integrated poured between measurement level coil 1 and protected level coil 2 can bear voltage breakdown requirement.Finally on locating piece 3, be provided with positioning screw hole 5, for pouring into a mould the location of location structure to whole secondary coil when current transformer is integrated poured, namely adopt Bolt to position in integrated poured mould by this positioning screw hole 5.
Design aim of the present invention is, cast away the binding locate mode between each coil when tradition is poured into a mould current transformer, adopt brand-new locate mode, be about to measure level coil 1, after protected level coil 2 pours into a mould location by the locating piece 3 of such as epoxy unsaturated-resin castable or cast polyurethane block in advance, be positioned to carry out in integrated poured mould integrated poured again with primary winding etc., novel structure, manufacture craft is simple, do not need measurement level coil when carrying out current transformer and being integrated poured, protected level coil carries out complicated colligation, enormously simplify process for integrally manufacturing, production efficiency is high, and it is high to make precision.
Above the technical scheme that the embodiment of the present invention provides is described in detail, apply specific case herein to set forth the principle of the embodiment of the present invention and execution mode, the explanation of above embodiment is only applicable to the principle helping to understand the embodiment of the present invention; Meanwhile, for one of ordinary skill in the art, according to the embodiment of the present invention, embodiment and range of application all will change, and in sum, this description should not be construed as limitation of the present invention.

Claims (6)

1. a Current Transformer Secondary coil cast location structure, it is characterized in that: comprise and there is same axis and the measurement level coil (1) be set up in parallel, protected level coil (2), described measurement level coil (1), protected level coil (2) sidepiece has one to this measurement level coil (1), the locating piece (3) that protected level coil (2) positions simultaneously, this locating piece (3) is epoxy unsaturated-resin castable or cast polyurethane block, and described measurement level coil (1), the end winding wire (4) of protected level coil (2) is drawn by described locating piece (3) sidepiece.
2. Current Transformer Secondary coil cast location structure according to claim 1; it is characterized in that: described locating piece (3) is rectangular structure; described measurement level coil (1), protected level coil (2) part are embedded in the same large plane of this locating piece (3), and the axis of this measurement level coil (1), protected level coil (2) and this large plane parallel.
3. Current Transformer Secondary coil cast location structure according to claim 2, is characterized in that: the axis setting direction of described measurement level coil (1), protected level coil (2) is consistent with the length direction of described locating piece (3).
4. Current Transformer Secondary coil cast location structure according to claim 2, is characterized in that: described measurement level coil (1), protected level coil (2) height embedded in described locating piece (3) are less than 1/4 times of described measurement level coil (1) or protected level coil (2) diameter.
5. Current Transformer Secondary coil cast location structure according to claim 1, is characterized in that: between described measurement level coil (1) and protected level coil (2), have gap.
6. Current Transformer Secondary coil cast location structure according to claim 1, is characterized in that: described locating piece (3) is provided with positioning screw hole (5).
CN201510306999.7A 2015-06-05 2015-06-05 Secondary coil casting positioning structure for current transformer Pending CN104916423A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201510306999.7A CN104916423A (en) 2015-06-05 2015-06-05 Secondary coil casting positioning structure for current transformer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201510306999.7A CN104916423A (en) 2015-06-05 2015-06-05 Secondary coil casting positioning structure for current transformer

Publications (1)

Publication Number Publication Date
CN104916423A true CN104916423A (en) 2015-09-16

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201510306999.7A Pending CN104916423A (en) 2015-06-05 2015-06-05 Secondary coil casting positioning structure for current transformer

Country Status (1)

Country Link
CN (1) CN104916423A (en)

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101697314A (en) * 2009-09-01 2010-04-21 大连泰克电气有限公司 Current transformer
CN202258761U (en) * 2011-09-23 2012-05-30 大连北方互感器集团有限公司 Secondary winding locating structure of current transformer
CN202948833U (en) * 2012-11-15 2013-05-22 平高集团有限公司 Pouring-type current transformer secondary winding fixed structure and winding fixed frame of the same
CN203165665U (en) * 2013-02-18 2013-08-28 中国西电电气股份有限公司 Prepressing tool for sealing secondary coils of current transformers
CN203799857U (en) * 2014-03-20 2014-08-27 大连中广互感器制造有限公司 Low-partial-discharge high-capacity post type current transformer
CN203799858U (en) * 2014-03-20 2014-08-27 大连中广互感器制造有限公司 Dry type current transformer high in no-load voltage ratio and capacity
CN203966821U (en) * 2014-07-23 2014-11-26 湖北新天成电气有限公司 A kind of secondary winding in current transformer mounting bracket and mould
CN204695956U (en) * 2015-06-05 2015-10-07 重庆华虹仪表有限公司 Current Transformer Secondary coil cast location structure

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101697314A (en) * 2009-09-01 2010-04-21 大连泰克电气有限公司 Current transformer
CN202258761U (en) * 2011-09-23 2012-05-30 大连北方互感器集团有限公司 Secondary winding locating structure of current transformer
CN202948833U (en) * 2012-11-15 2013-05-22 平高集团有限公司 Pouring-type current transformer secondary winding fixed structure and winding fixed frame of the same
CN203165665U (en) * 2013-02-18 2013-08-28 中国西电电气股份有限公司 Prepressing tool for sealing secondary coils of current transformers
CN203799857U (en) * 2014-03-20 2014-08-27 大连中广互感器制造有限公司 Low-partial-discharge high-capacity post type current transformer
CN203799858U (en) * 2014-03-20 2014-08-27 大连中广互感器制造有限公司 Dry type current transformer high in no-load voltage ratio and capacity
CN203966821U (en) * 2014-07-23 2014-11-26 湖北新天成电气有限公司 A kind of secondary winding in current transformer mounting bracket and mould
CN204695956U (en) * 2015-06-05 2015-10-07 重庆华虹仪表有限公司 Current Transformer Secondary coil cast location structure

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Application publication date: 20150916

RJ01 Rejection of invention patent application after publication