CN204809037U - Two -sided capacitor membrane - Google Patents
Two -sided capacitor membrane Download PDFInfo
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- CN204809037U CN204809037U CN201520536681.3U CN201520536681U CN204809037U CN 204809037 U CN204809037 U CN 204809037U CN 201520536681 U CN201520536681 U CN 201520536681U CN 204809037 U CN204809037 U CN 204809037U
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- zinc coat
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Abstract
The utility model provides a two -sided capacitor membrane, it includes: dielectric layer (1), its have first surface (11) and with first surface (11) relative second surface (12), galvanizing coat (2), it is located respectively on first surface (11) and second surface (12), galvanizing coat (2) with the edge of dielectric layer (1) leaves white space (4), aluminize layer (3), it is located respectively on galvanizing coat (2) of first surface (11) and second surface (12), wherein, aluminize layer (3) and go up at least edge and be formed with thickening chimb (31). Compared with the prior art, the utility model discloses a capacitor membrane, its chinese people's anti -Japanese military and political college's electric current, self -healing can just be dispelled the heat by the reinforce.
Description
Technical field
The utility model relates to field of electronic materials, particularly relates to a kind of double sided capacitor film.
Background technology
Film capacitor is a kind of capacitor of superior performance, and it has following key property: nonpolarity, and insulation impedance is very high, and frequency characteristic is excellent, and dielectric loss is very little, and volume low capacity is large.Therefore, film capacitor has purposes comparatively widely, different series of products can be formed, as high specific energy energy storage capacitor, electromagnetism interference capacitor, radioresistance capacitor, safety film capacitor, long-service-life capacitor, High-reliability capacitor, All-film H.V.Capacitors etc.Along with complete electronic set is to digitlization, high frequency, multifunction and to the future development such as thin, light, little, portable, capacitor is, performance excellent, price lower future development little to volume inevitably.In the resistance to heavy current capacitor field of employment such as CBB81, CL21 widely, be usually used in display device, as sound equipment, audio-visual equipment, the communication apparatus, the filtering of electronic equipment, noise reduction, stopping direct current, and resistance to heavy current impact etc. on welding machine.The not resistance to big current of existing capacitor film, fragile, the life-span is short.Further, its structure of existing capacitor membrane is comparatively single, thermal endurance and self-healing performance poor.
Therefore be necessary that proposing a kind of new technical scheme solves the problems referred to above.
Utility model content
The defect that the purpose of this utility model is to overcome above-mentioned prior art provides a kind of heavy current, self-healing ability strong and the capacitor two-side film membrane of good heat dissipation.
For reaching aforementioned object, a kind of double sided capacitor film of the utility model, it comprises:
Dielectric layer, it has first surface and the second surface relative with described first surface;
Zinc coat, it lays respectively on described first surface and second surface, and the edge of described zinc coat and described dielectric layer leaves white space;
Aluminium coated, it lays respectively on the zinc coat of described first surface and second surface,
Wherein, on described aluminium coated, at least one edge is formed with thickening chimb.
As the utility model preferred mode, the first surface of described dielectric layer is identical with the thickness of the zinc coat on second surface.
As the utility model preferred mode, described dielectric layer is polypropylene layer.
As the utility model preferred mode, the width of described white space is 1-2mm.
As the utility model preferred mode, the sheet resistance of described thickening chimb is 1-3 Ω/c ㎡.
As the utility model preferred mode, the sheet resistance of the non-thickened area of described aluminium coated is 5-10 Ω/c ㎡.
As the utility model preferred mode, the thickness of the non-thickened area of described aluminium coated is less than the thickness of described zinc coat.
The beneficial effects of the utility model: compared with prior art, double sided capacitor thin film of the present utility model has the following advantages:
(1) double sided capacitor film of the present utility model, it is by arranging zinc coat and aluminum-zinc alloy on the two sides of dielectric layer, the performance of the resistance to big current of capacitor is strengthened greatly, the production cost of resistance to heavy current capacitor reduces by 40%, volume reduces 35%, and loss tangent controls below 0.05%, effectively improves the performance of product, improve the combination property of product, reduce production cost;
(2) the double sided capacitor film that provides of the utility model, it, by arranging aluminium coated on zinc coat, makes it have good heat dispersion, extends the useful life of capacitor membrane.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme of the utility model embodiment, below the accompanying drawing used required in describing embodiment is briefly described, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.Wherein:
Fig. 1 is the utility model double sided capacitor film structural representation in one embodiment;
Fig. 2 is the utility model double sided capacitor film structural representation in another embodiment.
Wherein, 1-dielectric layer, 11-first surface, 12-second surface, 2-zinc coat, 3-aluminium coated, 31-thickeies chimb, the non-thickened area of 32-, 4-white space, 5-aluminium coated, 51-hierarchic structure.
Embodiment
For enabling above-mentioned purpose of the present utility model, feature and advantage become apparent more, are described in further detail the utility model below in conjunction with the drawings and specific embodiments.
Alleged herein " embodiment " or " embodiment " refers to special characteristic, structure or the characteristic that can be contained at least one implementation of the utility model.Different local in this manual " in one embodiment " occurred not all refers to same embodiment, neither be independent or optionally mutually exclusive with other embodiments embodiment.
A kind of double sided capacitor film is provided, the strong and good heat dissipation of its heavy current, self-healing ability in the utility model.
Fig. 1 is double sided capacitor film of the present utility model structural representation in one embodiment, and wherein said capacitor membrane comprises dielectric layer 1, zinc coat 2 and aluminium coated 3.
Described dielectric layer 1, it has first surface 11 and the second surface 12 relative with described first surface 11.Described dielectric layer 1 is polypropylene layer.Polypropylene belongs to non-polar material, has good electric property, and dielectric loss is little, discharging efficiency is high, is the dielectric material generally adopted in metal current capacitor.
Described zinc coat 2, it lays respectively on described first surface 11 and second surface 12.In this embodiment, the first surface 11 of described dielectric layer 1 is identical with the thickness of the zinc coat 2 on second surface 12.In other embodiments, the thickness of the zinc coat 2 on described first surface 11 is greater than or less than the thickness of the zinc coat 2 on second surface 12.Described zinc coat 2 leaves white space 4 with the edge of described dielectric layer 1.The width of described white space 4 is 1-2mm.
Described aluminium coated 3, it lays respectively on the zinc coat 2 of described first surface 11 and second surface 12.
The utility model, by carrying out two-sided metal cladding at dielectric layer 1, greatly can improve the performance of the resistance to big current of capacitor membrane, have good self-healing performance.Further, the utility model, by arranging aluminium coated 3 on the surface of zinc coat 2, makes heat dispersion greatly improve.
Please continue to refer to Fig. 1, on described aluminium coated 3, at least one edge is formed and thickeies chimb 31.The sheet resistance of described thickening chimb 31 is 1-3 Ω/c ㎡.The sheet resistance of the non-thickened area 32 of described aluminium coated 3 is 5-10 Ω/c ㎡.Aluminium coated 3 is made stiffened edge by the utility model, improves the self-healing performance of film, and self-healing point obviously reduces, and the voltage endurance capability of capacitor also improves greatly.
The thickness of the non-thickened area 32 of described aluminium coated 3 is less than the thickness of described zinc coat 2.The aluminium coated 3 of this thickness ensure that the radiating effect of described capacitor membrane.
Refer to Fig. 2, it is double sided capacitor film of the present utility model structural representation in another embodiment.In this embodiment, described aluminium coated 5 is hierarchic structure 51.Described aluminium coated 5 from the edge of aluminium coated 5 to another opposite edges be stairway degression distribution.The sheet resistance of described aluminium coated 5 gradually changes scope at 5-15 Ω/c ㎡.Hierarchic structure 51 direction on described dielectric layer 1 two sides is contrary.In other embodiments, hierarchic structure 51 direction on described dielectric layer 1 two sides is identical.In this embodiment, described aluminium coated 5 can not be too thick or too thin and affect the self-healing effect of film because of thickness.Further, the structure of aluminium coated of the present utility model can improve the grade of capacitor, enhances productivity.
Capacitor membrane tool of the present utility model has the following advantages:
(1) capacitor membrane of the present utility model, it is by arranging zinc coat and aluminum-zinc alloy on the two sides of dielectric layer, the performance of the resistance to big current of capacitor is strengthened greatly, the production cost of resistance to heavy current capacitor reduces by 40%, volume reduces 35%, and loss tangent controls below 0.05%, effectively improves the performance of product, improve the combination property of product, reduce production cost;
(2) capacitor membrane that provides of the utility model, it, by arranging aluminum-zinc alloy on zinc coat, makes it have good heat dispersion, extends the useful life of capacitor membrane.
Above-mentioned explanation fully discloses embodiment of the present utility model.It is pointed out that the scope be familiar with person skilled in art and any change that embodiment of the present utility model is done all do not departed to claims of the present utility model.Correspondingly, the scope of claim of the present utility model is also not limited only to previous embodiment.
Claims (5)
1. a double sided capacitor film, is characterized in that: it comprises:
Dielectric layer (1), it has first surface (11) and the second surface (12) relative with described first surface (11);
Zinc coat (2), it lays respectively on described first surface (11) and second surface (12), and described zinc coat (2) leaves white space (4) with the edge of described dielectric layer (1);
Aluminium coated (3), it lays respectively on the zinc coat (2) of described first surface (11) and second surface (12),
Wherein, the upper at least one edge of described aluminium coated (3) is formed and thickeies chimb (31).
2. double sided capacitor film according to claim 1, is characterized in that: the first surface (11) of described dielectric layer (1) is identical with the thickness of the zinc coat (2) on second surface (12).
3. double sided capacitor film according to claim 1, is characterized in that: described dielectric layer (1) is polypropylene layer.
4. double sided capacitor film according to claim 1, is characterized in that: the width of described white space (4) is 1-2mm.
5. double sided capacitor film according to claim 1, is characterized in that: the thickness of the non-thickened area (32) of described aluminium coated (3) is less than the thickness of described zinc coat (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520536681.3U CN204809037U (en) | 2015-07-22 | 2015-07-22 | Two -sided capacitor membrane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520536681.3U CN204809037U (en) | 2015-07-22 | 2015-07-22 | Two -sided capacitor membrane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204809037U true CN204809037U (en) | 2015-11-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520536681.3U Expired - Fee Related CN204809037U (en) | 2015-07-22 | 2015-07-22 | Two -sided capacitor membrane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204809037U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105742062A (en) * | 2016-04-08 | 2016-07-06 | 郑州航空工业管理学院 | Pulse metallic polypropylene film capacitor |
| CN109891534A (en) * | 2016-10-28 | 2019-06-14 | 松下知识产权经营株式会社 | Thin film capacitor |
-
2015
- 2015-07-22 CN CN201520536681.3U patent/CN204809037U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105742062A (en) * | 2016-04-08 | 2016-07-06 | 郑州航空工业管理学院 | Pulse metallic polypropylene film capacitor |
| CN105742062B (en) * | 2016-04-08 | 2018-05-11 | 郑州航空工业管理学院 | A kind of pulse metal polypropylene screen capacitor |
| CN109891534A (en) * | 2016-10-28 | 2019-06-14 | 松下知识产权经营株式会社 | Thin film capacitor |
| CN109891534B (en) * | 2016-10-28 | 2021-02-19 | 松下知识产权经营株式会社 | Thin film 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: 20151125 Termination date: 20200722 |