CN203895256U - Novel cast current transformer iron core buffer device - Google Patents
Novel cast current transformer iron core buffer device Download PDFInfo
- Publication number
- CN203895256U CN203895256U CN201420348109.XU CN201420348109U CN203895256U CN 203895256 U CN203895256 U CN 203895256U CN 201420348109 U CN201420348109 U CN 201420348109U CN 203895256 U CN203895256 U CN 203895256U
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- box
- iron core
- silicon rubber
- buffer
- determination
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Abstract
The utility model provides a novel cast current transformer iron core buffer device which is convenient to prepare, convenient and fast to operate and stable and excellent in buffer performance. Silicon rubber is of an integrally formed protective box type and is divided into an upper part and a lower part. The thicknesses of all face walls of the protective box are uneven. After the silicon rubber protective box is wrapped outside an iron core, wire wrapping is started, and other buffer materials are not needed any more. The buffer device of the structure reduces material consumption for wrapping an iron core buffer layer, increases the buffer utilization rate, reduces the labor intensity of workers, improves the working efficiency and reduces faults and hidden danger of cast current transformers.
Description
(1) technical field
The utility model is a kind of for the buffer unit on cast-type mutual inductor iron core, belongs to high-voltage line protection apparatus field.
(2) background technology
Tradition cast-type mutual inductor shrinks because epoxy resin mixed glue exists obviously in solidification process, inner core all adopts the mode of wrapping padded coaming to process, to reduce stressed in the contraction process of epoxy resin mixed glue unshakable in one's determination, and fully discharge internal stress to prevent cracking.The wrapping mode that cast-type mutual inductor adopts both at home and abroad is roughly divided into two kinds: 1, adopt cable crimped paper radially to wrap up along iron core.2, adopt silicane rubber plate after the tangential wrapping of excircle unshakable in one's determination, protect upper and lower end face unshakable in one's determination with insulating board, then inner periphery unshakable in one's determination is protected with materials such as highland barley paper.The advantage of structure 1 is easy and simple to handle, but crimped paper need to keep dry, after having wrapped up, also seal with insulating tape, to prevent that epoxy resin mixed glue infiltration crimped paper from making crimped paper lose buffering effect, in the time of vacuum treatment, bubble and moisture are difficult for discharging simultaneously, affect instrument transformer total quality reliability; The advantage of structure 2 is to produce bubble and moisture, does not worry the infiltration of a small amount of epoxy resin mixed glue, but the material preparation section that wrapping adopts is comparatively complicated, operate also more difficultly, and complex steps, is not easy to production.Therefore need a kind of novel cast-type mutual inductor of research and development buffer unit unshakable in one's determination badly.
(3) summary of the invention
The design's object is a kind of novel cast-type mutual inductor of research and development buffer unit unshakable in one's determination, can effectively reduce epoxy resin mixed glue and shrink impact unshakable in one's determination, plays and prevents that error is overproof, the effect of release internal stress.Adopt silicon rubber material, do not have bubble and moisture, be conducive to improve the total quality of instrument transformer; Profile adopts and protects boxlike, easy and simple to handle, has stopped the hidden danger of quality that technique dispersiveness is brought, and improves instrument transformer and manufactures efficiency, can also effectively reduce the holistic cost of instrument transformer simultaneously.
The design solves the technical scheme that its technical problem takes: what adopt one-time formed silicon rubber material protects box as buffer unit unshakable in one's determination.According to the shrinkage character of epoxy resin mixed glue and physical characteristic unshakable in one's determination, protect wall thickness outside box and be greater than inner side and upper and lower end face wall thickness; In use only iron core need be put into silicon rubber and protect box and just can start production, greatly simplify production stage, improve production efficiency and product reliability.
The design's beneficial effect is, reduced the material consumption of resilient coating wrapping unshakable in one's determination, improved buffering utilance, reduced workman's labour intensity, improved operating efficiency, also reduced the potential faults of pouring current transformer; Adopt silicon rubber as protecting box material, avoided the hidden danger of quality bringing because of moisture in wrapper material or bubble discharge problem.
(4) brief description of the drawings
fig. 1 isnovel pouring formula instrument transformer buffer unit cutaway view unshakable in one's determination.
In Fig. 1,1. protect box epivalve, 2. iron core, 3. protects box hypovalve, 4. protects box upper surface, 5. protects box lower surface, 6. protects box inner side, 7. protects box outside.
(5) embodiment
Below in conjunction with accompanying drawing, this novel buffering method unshakable in one's determination is further illustrated.
First, silicon rubber is prepared into the pattern that protects box epivalve 1 and protect box hypovalve 3, and protect box upper surface 4, protect box lower surface 5, protect box inner side 6, protect box outside 7 variable thickness and cause, wherein protect box outside 7 thickness >=3mm, protect box upper surface 4 and protect box lower surface 5 thickness >=2mm, protecting box inner side 6 thickness 1mm.Then will protect box epivalve 1 and protect box hypovalve 3 and be enclosed within respectively on unshakable in one's determination 2 and just can start to carry out subsequent production.
Use the design, can make buffering unshakable in one's determination more abundant, reduced the difficulty of processing of pouring current transformer secondary winding simultaneously, greatly improved production efficiency, reduced percent defective, utilize more efficiently resource, possess good production application prospect.
Claims (1)
1. a Novel pouring formula instrument transformer buffer unit unshakable in one's determination, mainly protect box epivalve by silicon rubber and hypovalve forms, it is characterized in that: what adopt silicon rubber material protects box as buffer unit unshakable in one's determination, it is one-time formed two lobe formula structures that silicon rubber protects box, and silicon rubber protects outside box wall thickness and is greater than and protects box upper surface, protect box lower surface and protect wall thickness inside box.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420348109.XU CN203895256U (en) | 2014-06-26 | 2014-06-26 | Novel cast current transformer iron core buffer device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420348109.XU CN203895256U (en) | 2014-06-26 | 2014-06-26 | Novel cast current transformer iron core buffer device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203895256U true CN203895256U (en) | 2014-10-22 |
Family
ID=51721627
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420348109.XU Expired - Fee Related CN203895256U (en) | 2014-06-26 | 2014-06-26 | Novel cast current transformer iron core buffer device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203895256U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105571477A (en) * | 2016-03-15 | 2016-05-11 | 北京星空建腾电子科技有限公司 | Magnetic core component of linear displacement sensor |
| CN112951575A (en) * | 2021-03-18 | 2021-06-11 | 大连北方互感器集团有限公司 | Method for manufacturing body coil of voltage transformer |
| CN112992519A (en) * | 2019-12-02 | 2021-06-18 | 河南森源电气股份有限公司 | Current transformer iron core buffer processing production method and buffer processing die |
-
2014
- 2014-06-26 CN CN201420348109.XU patent/CN203895256U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105571477A (en) * | 2016-03-15 | 2016-05-11 | 北京星空建腾电子科技有限公司 | Magnetic core component of linear displacement sensor |
| CN112992519A (en) * | 2019-12-02 | 2021-06-18 | 河南森源电气股份有限公司 | Current transformer iron core buffer processing production method and buffer processing die |
| CN112951575A (en) * | 2021-03-18 | 2021-06-11 | 大连北方互感器集团有限公司 | Method for manufacturing body coil of voltage transformer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141022 Termination date: 20150626 |
|
| EXPY | Termination of patent right or utility model |