CN203706877U - High-sheet-resistance safety metalized film - Google Patents
High-sheet-resistance safety metalized film Download PDFInfo
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- CN203706877U CN203706877U CN201320857293.6U CN201320857293U CN203706877U CN 203706877 U CN203706877 U CN 203706877U CN 201320857293 U CN201320857293 U CN 201320857293U CN 203706877 U CN203706877 U CN 203706877U
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- square resistance
- capacitor
- thickened area
- region
- metallized film
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Abstract
The utility model relates to a high-sheet-resistance safety metalized film, which comprises a base film, a thickened region, a gradually changing sheet resistance region and a reserved edge. A thick zinc plating layer is plated on one side of the base film to form the thickened region. On the same side with the thickened region, a metal layer non-plating layer is reserved on the base film to form the reserved edge. Between the thickened region and the reserved edge, a layer of metal aluminum with the thickness thereof from thick to thin is plated on the base film to form the gradually changing sheet resistance region. According to the technical scheme of the utility model, the high-sheet-resistance safety metalized film is adapted to the current density distribution of a capacitor, wherein both the current requirement and the voltage requirement of the capacitor are given consideration to. Therefore, the self-healing capability of the capacitor is improved, and the safety and the reliability of the capacitor are enhanced.
Description
Technical field
The utility model relates to a kind of metallized film, and the safe metallized film of especially a kind of high square resistance, belongs to technical field of electronic components.
Background technology
What the metallized film generally using in the market all adopted is simple high square resistance film, or simple safety diaphragm.And simple high square resistance film is not very desirable in the self-healing in this region of thickness coating, easily there is time self-healing, generate heat more serious.And simple safety diaphragm, its small product size rolling is bigger than normal, and the energy storage density of capacitor is inadequate.
Utility model content
The deficiency that the utility model exists for prior art just, provides a kind of high square resistance safe metallized film.
For addressing the above problem, technical solution adopted in the utility model is as follows:
The safe metallized film of a kind of high square resistance, described metallized film comprises: basement membrane, thickened area, gradual changing square resistance district, stay limit, plate the zinc coating of thick layer in basement membrane one side, form thickened area, reserved not metal cladding on the basement membrane of thickened area homonymy, limit is stayed in formation, and the region between Dao Liu limit, thickened area plates layer of metal aluminium gradually from thick to thin, forms gradual changing square resistance district.
As the improvement of technique scheme, middle to region thickened area from metallized film, be uniformly distributed metal fuse in inside, gradual changing square resistance district.
Compared with prior art, implementation result of the present utility model is as follows for the utility model:
The safe metallized film of high square resistance described in the utility model, the electric current distribution of this high square resistance safety diaphragm and capacitor adapts, and has taken into account the demand of electric current and the voltage of capacitor, improves the self-healing ability of capacitor, increases the security reliability of electric capacity.
Brief description of the drawings
Fig. 1 is the safe metallized film structural representation of high square resistance described in the utility model;
Fig. 2 is A-A cutaway view in Fig. 1.
Embodiment
Content of the present utility model is described below in conjunction with specific embodiments.
As shown in Figure 1, be the safe metallized film structural representation of high square resistance described in the utility model, Fig. 2 is A-A cutaway view in Fig. 1.Metallized film described in the utility model comprises: basement membrane 1, thickened area 3, gradual changing square resistance district 2, stay limit 4, metal fuse 5.Plate layer of metal zinc in basement membrane 1 one sides, make the edge of basement membrane 1 form the thicker zinc coating of one deck, form thickened area 3.Thickened area 3 greatly reduces the gilding layer of film capacitor and the contact resistance of fuse, can bear larger electric current.The thickness of controlling thickened area 3 evaporation metal zinc, makes its square resistance presenting in (4.5 ± 1) Ω/.
On the basement membrane 1 of thickened area 3 homonymies, reserved not metal cladding of certain width, forms and stays limit 4.To staying region between limit 4 to plate layer of metal aluminium gradually from thick to thin, form gradual changing square resistance district 2 in thickened area 3.Gradual changing square resistance district 2 makes its square resistance occur variation from small to large.Control regularly the thickness of coating of aluminum metal, make the resistance of the square resistance in gradual changing square resistance district 2 present ladder and increase progressively phenomenon.
Also be uniformly distributed metal fuse 5 to region thickened area 3 in 2 inside, gradual changing square resistance district from metallized film is middle, metal fuse 5 forms rectangular block.Because thickened area 3 is partially thick to the coating of middle this subregion of film, the needed energy of film self-healing occurs to be increased, the possibility that time self-healing occurs increases, metal fuse 5 in this section distributes in coating, make capacitor in the time just starting self-healing occurs, can blow a fuse, reduce the generation of time self-healing, increase the security reliability of electric capacity.The electric current distribution of evaporation mode of the present utility model and capacitor adapts, and improves the compressive resistance of capacitor.
Claims (2)
1. the safe metallized film of high square resistance, it is characterized in that, described metallized film comprises: basement membrane (1), thickened area (3), gradual changing square resistance district (2), stay limit (4), plate the zinc coating of thick layer in basement membrane (1) one side, form thickened area (3), the upper reserved not metal cladding of the basement membrane (1) of (3) homonymy in thickened area, limit (4) is stayed in formation, to staying region between limit (4) to plate layer of metal aluminium gradually from thick to thin, form gradual changing square resistance district (2) in thickened area (3).
2. the safe metallized film of a kind of high square resistance as claimed in claim 1, is characterized in that, middle to region thickened area (3) from metallized film, is uniformly distributed metal fuse (5) in inside, gradual changing square resistance district (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320857293.6U CN203706877U (en) | 2013-12-24 | 2013-12-24 | High-sheet-resistance safety metalized film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320857293.6U CN203706877U (en) | 2013-12-24 | 2013-12-24 | High-sheet-resistance safety metalized film |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203706877U true CN203706877U (en) | 2014-07-09 |
Family
ID=51057279
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320857293.6U Expired - Fee Related CN203706877U (en) | 2013-12-24 | 2013-12-24 | High-sheet-resistance safety metalized film |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203706877U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103680946A (en) * | 2013-12-24 | 2014-03-26 | 安徽赛福电子有限公司 | High-sheet-resistance safe metallized film |
| 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 |
-
2013
- 2013-12-24 CN CN201320857293.6U patent/CN203706877U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103680946A (en) * | 2013-12-24 | 2014-03-26 | 安徽赛福电子有限公司 | High-sheet-resistance safe metallized film |
| 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 |
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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: 20140709 Termination date: 20141224 |
|
| EXPY | Termination of patent right or utility model |