CN106816288A - The glue-pouring method and its transformer of a kind of threephase current transformer - Google Patents
The glue-pouring method and its transformer of a kind of threephase current transformer Download PDFInfo
- Publication number
- CN106816288A CN106816288A CN201611246324.9A CN201611246324A CN106816288A CN 106816288 A CN106816288 A CN 106816288A CN 201611246324 A CN201611246324 A CN 201611246324A CN 106816288 A CN106816288 A CN 106816288A
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- China
- Prior art keywords
- glue
- mutual inductor
- inductor coil
- current transformer
- sealing ring
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
- H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
- H01F41/04—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing coils
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/30—Fastening or clamping coils, windings, or parts thereof together; Fastening or mounting coils or windings on core, casing, or other support
- H01F27/303—Clamping coils, windings or parts thereof together
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Transformers For Measuring Instruments (AREA)
Abstract
The invention provides a kind of glue-pouring method of threephase current transformer, it is characterised in that provide an aluminum barrel, sealing ring and some mutual inductor coils, the external diameter of aluminum barrel is less than the internal diameter of mutual inductor coil, including：Pre-fix step, mutual inductor coil is sheathed on aluminum barrel with being laminated, sealing ring is placed between adjacent coil mutual inductance device, mutual inductor coil, sealing ring and aluminum barrel are arranged concentrically, make to form sizing material gap between adjacent mutual inductor coil and between aluminum barrel and mutual inductor coil, the annular mistake glue hole for connect sizing material gap is formed in the inwall of the mutual inductor coil positioned at topmost and the outer wall of aluminum barrel；Encapsulating step, crosses in glue hole in annular and pours into glue；Curing schedule, waits glue solidification；Demoulding step, aluminum barrel and sealing ring are taken out from coil mutual inductance device, form threephase current transformer.The stability of current transformer is improved in this way.
Description
Technical field
The present invention relates to transformer technical field, a kind of glue-pouring method and its mutually of threephase current transformer is specifically related to
Sensor.
Background technology
Current transformer principle is according to electromagnetic induction principle.Current transformer is the unshakable in one's determination and winding group by closing
Into.Seldom, string is in the circuit of electric current of measurement is needed, therefore it often has whole electric currents of circuit for its first winding number of turn
Flow through, Secondary Winding turn ratio is more, is serially connected in measuring instrumentss and protective loop, current transformer operationally, its two
Minor loop all the time be closure, therefore measuring instrumentss and protective loop series coil impedance very little, the work of current transformer
State so as to reach the purpose of detection, and is typically employed in the current transformer that high-tension current is detected, due to two circles close to short circuit
Number is more, so volume is larger, and in order to ensure the degree of stability and isolation of whole transformer structure, mutual inductor coil it
Between the technique that is compressed by pressing plate be fixed, one to carry out complex process relatively costly, and fixed effect is not good, influence safety.
The content of the invention
For the above-mentioned problems in the prior art, in order to realize that the first object of the present invention now aims to provide a kind of three
The glue-pouring method of phase current mutual inductor, to realize by encapsulating the fixation between mutual inductor coil, improves structural stability；
For the above-mentioned problems in the prior art, in order to realize that the first object of the present invention now aims to provide a kind of three
Phase current mutual inductor, compound layer directly fixes mutual inductor coil, improves structural stability.
Concrete technical scheme is as follows：
In order to realize the first object of the present invention, there is provided a kind of glue-pouring method of threephase current transformer, there is provided three aluminium
Cylinder, sealing ring and some mutual inductor coils, the internal diameter of the external diameter less than the mutual inductor coil of the aluminum barrel, including：
Step is pre-fixed, the mutual inductor coil is sheathed on the aluminum barrel, the adjacent coil mutual inductance device with being laminated
Between place sealing ring, the mutual inductor coil, sealing ring and aluminum barrel are arranged concentrically, and make the neighbouring transformer line
Sizing material gap is formed between circle and between the aluminum barrel and mutual inductor coil, in the mutual inductor coil positioned at topmost
The outer wall of inwall and the aluminum barrel form the annular mistake glue hole for connect the sizing material gap；
Encapsulating step, crosses in glue hole in the annular and pours into glue；
Curing schedule, waits glue solidification；
Demoulding step, the aluminum barrel and the sealing ring are taken out from the coil mutual inductance device, form the three-phase electricity
Current transformer.
Further, the sealing ring is provided with steam vent.
Further, in the demoulding step, by the mutual inductor coil and the sealing ring outer application demoulding
The sealing ring is taken out in agent.
Further, the glue is polyurethane compositions.
Further, the width in the sizing material gap is 4-6 millimeters.
Further, also including prerinse step, the mutual inductor coil and aluminum barrel are cleaned.
Further, in the curing schedule, also including being heated to the glue.
Further, described pre-fixing also includes compaction step between step and the encapsulating step, the compression step
Rapid to provide a hold-down gear, the hold-down gear includes power source and pressure strip, the power source drive the pressure strip from
Top compresses the mutual inductor coil.
Further, funnel is set on the pressure strip, and the funnel is arranged at the annular and crosses on glue hole to be used in institute
State annular glue hole of crossing and pour into the glue.
In order to realize the second object of the present invention, there is provided one kind three that the glue-pouring method of above-mentioned threephase current transformer is made
Phase current mutual inductor, including the mutual inductor coil being stacked, between the mutual inductor coil and the mutual inductor coil
Inner side is provided with integrally formed compound layer, and the mutual inductor coil is directly adhesively fixed by compound layer.
The good effect of above-mentioned technical proposal is：Compared to traditional mode, structure is more stablized so that transformer is more pacified
It is complete reliable, while eliminating pressing plate fixes mutual inductor coil, greatly save production, cost of transportation.
Brief description of the drawings
Fig. 1 is a kind of top view of threephase current transformer of the invention；
Fig. 2 is a kind of side view of threephase current transformer of the invention；
In accompanying drawing：1st, mutual inductor coil；2nd, aluminum barrel；3rd, compound layer.
Specific embodiment
In order that technological means, creation characteristic, reached purpose and effect that the present invention is realized are easy to understand, it is real below
Example combination accompanying drawing 1 to the technical scheme of 2 pairs of present invention offers of accompanying drawing is applied to be specifically addressed, but herein below is not as of the invention
Limit.
A kind of glue-pouring method of threephase current transformer, there is provided three aluminum barrels 2, three aluminum barrels 2 are fixed on same base,
Sealing ring and some mutual inductor coils 1, the internal diameter of the external diameter less than the mutual inductor coil 1 of the aluminum barrel 2, the sealing ring
It is provided with steam vent.Including：
Prerinse step, wipes the mutual inductor coil 1 and cleaning aluminum barrel 2, and cleaning can then be carried out clearly by alcohol
Wash, mainly dispel the greasy dirt of surface attachment, it is to avoid the effect of influence bonding.
Step is pre-fixed, the mutual inductor coil 1 is sheathed on the aluminum barrel 2, the neighbouring coil with being laminated
Sealing ring is placed between transformer, the mutual inductor coil 1, sealing ring and aluminum barrel 2 are arranged concentrically, and make the adjacent mutual inductance
Sizing material gap is formed between device coil 1 and between the aluminum barrel 2 and mutual inductor coil 1, in the mutual inductance positioned at topmost
The annular that the inwall of device coil 1 connects the sizing material gap with the outer wall formation of the aluminum barrel 2 crosses glue hole；
Compaction step, compaction step provides a hold-down gear, and the hold-down gear includes power source and pressure strip, compresses
Device can realize having hydraulic cylinder to do power source by hydraulic mechanism, by pressure so that glue gap thickness in encapsulating
During will not change so that last finished form is relatively stable, and the power source drives the pressure strip from top
Compress the mutual inductor coil 1.Funnel is set on the pressure strip, and the funnel is arranged at the annular and crosses on glue hole to be used for
The annular crosses glue hole and pours into the glue.
Encapsulating step, crosses in the annular and glue is poured into glue hole, and the glue is polyurethane compositions, sizing material scene system
Take；
Curing schedule, waits glue solidification, if at normal temperatures, preferably placed 24 hours；In the curing schedule, also wrap
Include and the glue is heated, if carrying out encapsulating after being heated to 60 degree, then curing schedule can be shortened to two hours.
Demoulding step, hold-down gear is lifted, and discharges pressure, and the aluminum barrel 2 and the sealing ring is mutual from the coil
Taken out on sensor, form the threephase current transformer, in the demoulding step, by the mutual inductor coil 1 and
Sealing ring outer application releasing agent takes out the sealing ring, while can carry out cleaning the unnecessary sizing material of mutual inductor coil 1, with
And moisture drying and processing is carried out to product, and room temperature is kept during drying, can then be put into appropriate drier and be dried bag
Dress is preserved.
In order to realize the second object of the present invention, there is provided one kind three that the glue-pouring method of above-mentioned threephase current transformer is made
Phase current mutual inductor, including the mutual inductor coil 1 being stacked, between the mutual inductor coil 1 and the mutual inductor coil 1
Inner side be provided with integrally formed compound layer 3, the mutual inductor coil 1 is directly adhesively fixed by compound layer 3.Reference picture 1
With shown in 2, with one of embodiment, when 6 mutual inductor coils 1 are set, concrete structure makes introduction, for example, can select
145 millimeters of shielding cylinder internal diameter, 10 millimeters of wall thickness is total high 615 millimeters, is 630 millimeters of shielding cylinder i.e. bottom at largest outside diameter
A diameter of 630 millimeters of seat, shielding cylinder is inserted in by mutual inductor coil 1, and the internal diameter of mutual inductor coil 1 is 165 millimeters, and external diameter is 290
Millimeter, the bonding height of mutual inductor coil 1 is 560 millimeters, and polyurethane compositions are about stayed between coil and between coil and shielding cylinder
There is a 4-6 millimeters of sizing material gap, preferably 5 millimeters, so that shielding cylinder is Nian Jie with coil firmly.
Preferred embodiments of the present invention are these are only, embodiments of the present invention and protection domain is not thereby limited, it is right
For those skilled in the art, should can appreciate that all utilization description of the invention and equivalent done by diagramatic content are replaced
Change and obviously change resulting scheme, should be included in protection scope of the present invention.
Claims (10)
1. a kind of glue-pouring method of threephase current transformer, it is characterised in that three aluminum barrels, sealing ring and some mutual inductances are provided
Device coil, the internal diameter of the external diameter less than the mutual inductor coil of the aluminum barrel, including：
Step is pre-fixed, the mutual inductor coil is sheathed on the aluminum barrel, the neighbouring mutual inductor coil with being laminated
Between place sealing ring, the mutual inductor coil, sealing ring and aluminum barrel are arranged concentrically, and make the neighbouring transformer line
Sizing material gap is formed between circle and between the aluminum barrel and mutual inductor coil, in the mutual inductor coil positioned at topmost
The outer wall of inwall and the aluminum barrel form the annular mistake glue hole for connect the sizing material gap；
Encapsulating step, crosses in glue hole in the annular and pours into glue；
Curing schedule, waits glue solidification；
Demoulding step, the aluminum barrel and the sealing ring are taken out from the mutual inductor coil, form the three-phase current mutual
Sensor.
2. the glue-pouring method of a kind of threephase current transformer according to claim 1, it is characterised in that the sealing ring sets
It is equipped with steam vent.
3. the glue-pouring method of a kind of threephase current transformer according to claim 2, it is characterised in that in demoulding step
In rapid, the sealing ring is taken out by the mutual inductor coil and sealing ring outer application releasing agent.
4. the glue-pouring method of a kind of threephase current transformer according to claim 1, it is characterised in that the glue is poly-
Urethane sizing material.
5. a kind of glue-pouring method of threephase current transformer according to claim 1, it is characterised in that the sizing material gap
Width be 4-6 millimeters.
6. the glue-pouring method of a kind of threephase current transformer according to claim 1, it is characterised in that also including prerinse
Step, cleans the aluminum barrel, and alcohol cloth is clean by mutual inductor coil surface and sealing ring surface wipes.
7. a kind of glue-pouring method of threephase current transformer according to claim 6, it is characterised in that the curing schedule
In, also including being heated to the glue.
8. the glue-pouring method of a kind of threephase current transformer according to claim 1, it is characterised in that described to pre-fix step
Compaction step is also included between rapid and described encapsulating step, the compaction step provides a hold-down gear, the hold-down gear
Including power source and pressure strip, the power source drives the pressure strip mutual inductor coil pressed from above.
9. the glue-pouring method of a kind of threephase current transformer according to claim 1, it is characterised in that on the pressure strip
Funnel is set, and the funnel is arranged at the annular and crosses on glue hole to be used to pour into the glue in the annular glue hole of crossing.
10. the one kind being made up of a kind of glue-pouring method of the threephase current transformer as described in claim 1-9 any one
Threephase current transformer, it is characterised in that between the mutual inductor coil and described including the mutual inductor coil being stacked
Integrally formed compound layer is provided with the inside of mutual inductor coil, the mutual inductor coil is directly adhesively fixed by compound layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611246324.9A CN106816288A (en) | 2016-12-29 | 2016-12-29 | The glue-pouring method and its transformer of a kind of threephase current transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611246324.9A CN106816288A (en) | 2016-12-29 | 2016-12-29 | The glue-pouring method and its transformer of a kind of threephase current transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106816288A true CN106816288A (en) | 2017-06-09 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611246324.9A Pending CN106816288A (en) | 2016-12-29 | 2016-12-29 | The glue-pouring method and its transformer of a kind of threephase current transformer |
Country Status (1)
| Country | Link |
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| CN (1) | CN106816288A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109616305A (en) * | 2018-11-27 | 2019-04-12 | 山东航天电子技术研究所 | A kind of three-phase integrated straight-through current transformer |
Citations (7)
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|---|---|---|---|---|
| CN2463937Y (en) * | 2001-02-13 | 2001-12-05 | 云南变压器电气股份有限公司 | Semi-closed dry transformer |
| CN201256073Y (en) * | 2008-07-08 | 2009-06-10 | 中国西电电气股份有限公司 | Integrated depositing type transducer and producing mold |
| 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 |
| CN103531348A (en) * | 2013-09-29 | 2014-01-22 | 四川风发电气科技有限公司 | Method for manufacturing high tension coil of resin pouring dry type coiling iron core transformer and high tension coil manufactured through method |
| CN203690085U (en) * | 2014-01-26 | 2014-07-02 | 西安腾达电力电子有限责任公司 | GIS mutual inductor |
| JP2014203923A (en) * | 2013-04-03 | 2014-10-27 | 富士電機株式会社 | Resin mold coil and mold transformer |
| CN204946704U (en) * | 2015-09-23 | 2016-01-06 | 青岛特锐德电气股份有限公司 | Pot type current transformer |
-
2016
- 2016-12-29 CN CN201611246324.9A patent/CN106816288A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2463937Y (en) * | 2001-02-13 | 2001-12-05 | 云南变压器电气股份有限公司 | Semi-closed dry transformer |
| CN201256073Y (en) * | 2008-07-08 | 2009-06-10 | 中国西电电气股份有限公司 | Integrated depositing type transducer and producing mold |
| 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 |
| JP2014203923A (en) * | 2013-04-03 | 2014-10-27 | 富士電機株式会社 | Resin mold coil and mold transformer |
| CN103531348A (en) * | 2013-09-29 | 2014-01-22 | 四川风发电气科技有限公司 | Method for manufacturing high tension coil of resin pouring dry type coiling iron core transformer and high tension coil manufactured through method |
| CN203690085U (en) * | 2014-01-26 | 2014-07-02 | 西安腾达电力电子有限责任公司 | GIS mutual inductor |
| CN204946704U (en) * | 2015-09-23 | 2016-01-06 | 青岛特锐德电气股份有限公司 | Pot type current transformer |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109616305A (en) * | 2018-11-27 | 2019-04-12 | 山东航天电子技术研究所 | A kind of three-phase integrated straight-through current transformer |
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| PB01 | Publication | ||
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Application publication date: 20170609 |