CN203456308U - Box-type high-voltage high-frequency large-pulse thin-film capacitor - Google Patents
Box-type high-voltage high-frequency large-pulse thin-film capacitor Download PDFInfo
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- CN203456308U CN203456308U CN201320615655.0U CN201320615655U CN203456308U CN 203456308 U CN203456308 U CN 203456308U CN 201320615655 U CN201320615655 U CN 201320615655U CN 203456308 U CN203456308 U CN 203456308U
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Abstract
A box-type high-voltage high-frequency large-pulse thin-film capacitor comprises a capacitor core, metal spraying layers sprayed on the two tail ends of the capacitor core, electrode lead wires welded with the metal spraying layers, an epoxy resin layer wrapping the whole capacitor core, and a PBT plastic shell wrapping on the outside of the epoxy resin layer. The capacitor core comprises a first double-face metalized thin-film layer, a first dielectric layer, a second double-face metalized thin-film layer, and a second dielectric layer, which are laminated sequentially. The two ends of the first dielectric layer are correspondingly paralleled and leveled to the two ends of the second dielectric layer, correspondingly. The left end of the first double-face metalized thin-film layer extends out of the first dielectric layer to form a first extension part, while the right end of the second double-face metalized thin-film layer extends out of the second dielectric layer to form a second extension part. The length of the first extension part is identical to that of the second extension part. The box-type high-voltage high-frequency large-pulse thin-film capacitor is applicable to high-voltage high-frequency large-pulse occasions, and the service life and stability of the capacitor can be effectively improved.
Description
Technical field
The utility model relates to a kind of capacitor, is specifically related to a kind of boxlike high voltagehigh frequency high impulse film capacitor.
Background technology
Film capacitor is nonpolarity, insulation impedance is very high, frequency characteristic is excellent, and dielectric loss is very little, so film capacitor is used in a large number at automotive electronics illumination, ballast, LED driving power and electricity-saving lamp etc.In film capacitor comparatively common a kind of be metallic electrode film capacitor, its by evaporation process at basement membrane single or double evaporation metal coating with as electrode.
Universal and development along with electrical lighting industry, also more and more higher to the structure of film capacitor and performance requirement, the design of film capacitor and processing procedure are controlled and had higher requirement, design unreasonable or processing procedure control is inappropriate all can have a strong impact on capacitor useful life and properties of product.Existing film capacitor was restricted in the useful life of high pressure, high frequency, large pulse occasion, easy ageing failure, less stable.
Utility model content
For the deficiencies in the prior art, the utility model proposes a kind of boxlike high voltagehigh frequency high impulse film capacitor, it can effectively improve useful life and the stability of capacitor applicable to high pressure, high frequency, large pulse occasion.
In order to achieve the above object, the technical scheme that the utility model adopts is as follows:
Boxlike high voltagehigh frequency high impulse film capacitor, comprise capacitor core, be sprayed on two ends of this capacitor core gilding layer, with the contact conductor of gilding layer welding, the epoxy resin layer of coated whole capacitor core and the PBT plastic casing that is coated on this epoxy resin layer outside, described capacitor core comprises the first double-sided metal thin layer, first medium layer, the second double-sided metal thin layer and the second medium layer stacking gradually; The two ends of described first medium layer and second medium layer are corresponding concordant respectively, the left end of described the first double-sided metal thin layer extends outward first medium layer, form the first extension, the right-hand member of described the second double-sided metal thin layer extends outward second medium layer, form the second extension, and the first extension and the second extension is equal in length.
Preferably, described the first double-sided metal thin layer and the second double-sided metal thin layer include a basement membrane and evaporation at the upper left coat of metal of this basement membrane and the right coat of metal, and the above-mentioned left coat of metal and the right coat of metal are spaced apart.
Preferably, the left end of the left coat of metal of described the first double-sided metal thin layer is concordant with its basement membrane left end; The right-hand member of the right coat of metal of described the second double-sided metal thin layer is concordant with its basement membrane right-hand member.
Preferably, the basement membrane right-hand member of described the first double-sided metal thin layer extends outward its right coat of metal; The basement membrane left end of described the second double-sided metal thin layer extends outward its left coat of metal.
Preferably, described first medium layer and second medium layer are layer of polypropylene foil.
Preferably, described basement membrane is polypropylene film.
Compared with prior art, the beneficial effects of the utility model are as follows:
1, adopt double-sided metal thin layer as electrode, utilize shunting principle in parallel, make capacitor can pass through larger electric current, meet the instructions for use of high frequency ac circuit.
2, double-sided metal thin layer adopts and to be the left coat of metal and the right coat of metal spaced apart, and electric capacity product can be used under higher voltage or higher impulsive condition.
3, adopt the PBT plastic casing of epoxy resin layer, high flame resistance to carry out capacitor core encapsulation, the electric property when guaranteeing capacitor product (as high temperature, high humidity) being used under particular surroundings, effectively increases useful life of capacitor product.
Accompanying drawing explanation
Fig. 1 is the structural representation of the preferred embodiment of the utility model boxlike high voltagehigh frequency high impulse film capacitor;
Fig. 2 is the generalized section of capacitor core in Fig. 1.
Embodiment
Below, by reference to the accompanying drawings and embodiment, the utility model is described further, so that clearer, understand the utility model technological thought required for protection.
Refer to Fig. 1 and Fig. 2, the utility model relates to a kind of boxlike high voltagehigh frequency high impulse film capacitor, and its preferred embodiments comprises capacitor core 1, gilding layer 2, contact conductor 3, epoxy resin layer 4, PBT plastic casing 5.
Wherein, gilding layer 2 is sprayed on two ends of capacitor core 1, and contact conductor 3 weldings are on gilding layer 2.Epoxy resin layer 4 is for coated whole capacitor core 1, and PBT plastic casing 5 is coated on the outside of this epoxy resin layer 4.
Wherein, the two ends of first medium layer 200 and second medium layer 400 are respectively corresponding concordant, and as preferably, first medium layer and second medium layer are layer of polypropylene foil.Adopt megathermal polypropylene film as dielectric material, can resist the too high puzzlement that causes dielectric material dielectric strength to decline of ambient temperature, strengthen product stability.In some other embodiment, also can adopt polyester-based rete etc.
The left end of the first double-sided metal thin layer 100 extends outward first medium layer 200, forms the first extension, and the length of this first extension is designated as b, and the right-hand member of the first double-sided metal thin layer 100 is concordant with first medium layer 200 right-hand member.As preferably, this first double-sided metal thin layer 100 comprises that a basement membrane and evaporation are at the upper left coat of metal of this basement membrane and the right coat of metal, and the above-mentioned left coat of metal and the right coat of metal are spaced apart; The left end of the left coat of metal of the first double-sided metal thin layer 100 is concordant with its basement membrane left end, and the basement membrane right-hand member of the first double-sided metal thin layer 100 extends outward its right coat of metal.
The right-hand member of the second double-sided metal thin layer 300 extends outward second medium layer 400, forms the second extension, and the length of this second extension is designated as b ', and the left end of the second double-sided metal thin layer 300 is concordant with second medium layer 400 left end.And the length b of the first extension equals the length b ' of the second extension.Preferably, the second double-sided metal thin layer 300 comprises that a basement membrane and evaporation are at the upper left coat of metal of this basement membrane and the right coat of metal, and the above-mentioned left coat of metal and the right coat of metal are spaced apart; The right-hand member of the right coat of metal of the second double-sided metal thin layer 300 is concordant with its basement membrane right-hand member, and the basement membrane left end of the second double-sided metal thin layer 300 extends outward its left coat of metal.
As preferably, basement membrane is polypropylene film.
For a person skilled in the art, can make other various corresponding changes and distortion according to technical scheme described above and design, and these all changes and distortion all should belong to the protection range of the utility model claim within.
Claims (6)
1. boxlike high voltagehigh frequency high impulse film capacitor, comprise capacitor core, be sprayed on two ends of this capacitor core gilding layer, with the contact conductor of gilding layer welding, the epoxy resin layer of coated whole capacitor core and the PBT plastic casing that is coated on this epoxy resin layer outside, it is characterized in that: described capacitor core comprises the first double-sided metal thin layer, first medium layer, the second double-sided metal thin layer and the second medium layer stacking gradually; The two ends of described first medium layer and second medium layer are corresponding concordant respectively, the left end of described the first double-sided metal thin layer extends outward first medium layer, form the first extension, the right-hand member of described the second double-sided metal thin layer extends outward second medium layer, form the second extension, and the first extension and the second extension is equal in length.
2. boxlike high voltagehigh frequency high impulse film capacitor as claimed in claim 1, it is characterized in that: described the first double-sided metal thin layer and the second double-sided metal thin layer include a basement membrane and evaporation at the upper left coat of metal of this basement membrane and the right coat of metal, and the above-mentioned left coat of metal and the right coat of metal are spaced apart.
3. boxlike high voltagehigh frequency high impulse film capacitor as claimed in claim 2, is characterized in that: the left end of the left coat of metal of described the first double-sided metal thin layer is concordant with its basement membrane left end; The right-hand member of the right coat of metal of described the second double-sided metal thin layer is concordant with its basement membrane right-hand member.
4. boxlike high voltagehigh frequency high impulse film capacitor as claimed in claim 2, is characterized in that: the basement membrane right-hand member of described the first double-sided metal thin layer extends outward its right coat of metal; The basement membrane left end of described the second double-sided metal thin layer extends outward its left coat of metal.
5. boxlike high voltagehigh frequency high impulse film capacitor as claimed in claim 1, is characterized in that: described first medium layer and second medium layer are layer of polypropylene foil.
6. boxlike high voltagehigh frequency high impulse film capacitor as claimed in claim 2, is characterized in that: described basement membrane is polypropylene film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320615655.0U CN203456308U (en) | 2013-09-30 | 2013-09-30 | Box-type high-voltage high-frequency large-pulse thin-film capacitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320615655.0U CN203456308U (en) | 2013-09-30 | 2013-09-30 | Box-type high-voltage high-frequency large-pulse thin-film capacitor |
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| Publication Number | Publication Date |
|---|---|
| CN203456308U true CN203456308U (en) | 2014-02-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201320615655.0U Expired - Fee Related CN203456308U (en) | 2013-09-30 | 2013-09-30 | Box-type high-voltage high-frequency large-pulse thin-film capacitor |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104934221A (en) * | 2015-06-25 | 2015-09-23 | 浙江七星电容器有限公司 | Wear-resistant double-sided metal electrical membrane of capacitor |
| CN105977024A (en) * | 2016-06-27 | 2016-09-28 | 安徽赛福电子有限公司 | Metalized safety film layer stacked-type pulse capacitor |
| CN105977023A (en) * | 2016-06-27 | 2016-09-28 | 安徽赛福电子有限公司 | Metalized film for high-voltage resistant large current capacitor |
| CN106098371A (en) * | 2016-06-27 | 2016-11-09 | 安徽赛福电子有限公司 | A kind of proof voltage long-service-life metal thin film capacitor |
| CN106206014A (en) * | 2016-06-27 | 2016-12-07 | 安徽赛福电子有限公司 | A kind of metal metallized safety thin film of high effective area |
| CN108878146A (en) * | 2018-07-03 | 2018-11-23 | 广东捷威电子有限公司 | A kind of metallized film box type capacitor of anti-interference, low ESR |
| CN111180210A (en) * | 2019-12-25 | 2020-05-19 | 戴晶怡 | Network structure circuit model capacitor |
-
2013
- 2013-09-30 CN CN201320615655.0U patent/CN203456308U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104934221A (en) * | 2015-06-25 | 2015-09-23 | 浙江七星电容器有限公司 | Wear-resistant double-sided metal electrical membrane of capacitor |
| CN105977024A (en) * | 2016-06-27 | 2016-09-28 | 安徽赛福电子有限公司 | Metalized safety film layer stacked-type pulse capacitor |
| CN105977023A (en) * | 2016-06-27 | 2016-09-28 | 安徽赛福电子有限公司 | Metalized film for high-voltage resistant large current capacitor |
| CN106098371A (en) * | 2016-06-27 | 2016-11-09 | 安徽赛福电子有限公司 | A kind of proof voltage long-service-life metal thin film capacitor |
| CN106206014A (en) * | 2016-06-27 | 2016-12-07 | 安徽赛福电子有限公司 | A kind of metal metallized safety thin film of high effective area |
| CN108878146A (en) * | 2018-07-03 | 2018-11-23 | 广东捷威电子有限公司 | A kind of metallized film box type capacitor of anti-interference, low ESR |
| CN111180210A (en) * | 2019-12-25 | 2020-05-19 | 戴晶怡 | Network structure circuit model capacitor |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140226 Termination date: 20200930 |