CN204045396U - A kind of metalized film controlling CHARGE DISTRIBUTION - Google Patents
A kind of metalized film controlling CHARGE DISTRIBUTION Download PDFInfo
- Publication number
- CN204045396U CN204045396U CN201420319276.1U CN201420319276U CN204045396U CN 204045396 U CN204045396 U CN 204045396U CN 201420319276 U CN201420319276 U CN 201420319276U CN 204045396 U CN204045396 U CN 204045396U
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- China
- Prior art keywords
- metal area
- metalized film
- sheet resistance
- metal
- ohm
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Abstract
The utility model relates to a kind of metalized film controlling CHARGE DISTRIBUTION, comprise screen band, screen band is arranged on the edge of metalized film side, described metalized film comprises: the first metal area and the second metal area, several equally spaced rectangle isolating bars are provided with in the second inside, metal area, isolating bar interconnects with screen band, and the second metal area is divided into separate unit, and the sheet resistance of the first metal area is larger than the sheet resistance of the second metal area, the sheet resistance of described first metal area is 10 ~ 20 ohm-sq units, the sheet resistance of the second metal area is 2 ~ 10 ohm-sq units.Metalized film described in the utility model, metalized film is formed the first metal area and the second metal area, and isolating bar is set in the second metal area, the distribution and the flowing that control electric charge is realized by the size controlling the first metal area and the second metal area sheet resistance, avoid electric charge in concentration of local, eliminate metalized film burnt or puncture, meet actual operation requirements.
Description
Technical field
The utility model relates to a kind of metalized film controlling CHARGE DISTRIBUTION, belongs to technical field of electronic components.
Background technology
In recent years, along with information industry and hyundai electronics equipment, instrument and meter are towards future developments such as miniaturization, lightweight, low cost, high-performance, metallic film capacitor with its withstand voltage span greatly, the distinguishing feature such as wide coverage, self-healing performance are good, adaptation field is wide and obtain and pay attention to widely and apply.Electronic devices and components based on metallic film capacitor, the demand in market increases year by year, and its model, specification, kind get more and more, and the field of use is constantly widened, the technical grade of product, the technology in manufacture and the technology content of production equipment are also continuous in raising.
Metallized film is made up of the metal that vacuum evaporation last layer on plastic film is very thin, and this layer of metal is used as electrode.Existing common metal film arranges isolation strip, and preventing in metalized film self-healing procedure burns the multilayer dielectricity neighbouring with self-healing point punctures, and causes capacitor short-circuit to lose efficacy.But the metal layer thickness in fact due to metalized film is uneven, cause its surface charge skewness, regional area current density is excessive to be also easy to cause burning puncture, and impact is actual to be used.
Utility model content
The utility model for the deficiency that prior art exists, provides a kind of metalized film controlling CHARGE DISTRIBUTION just.
For solving the problem, technical solution adopted in the utility model is as follows:
A kind of metalized film controlling CHARGE DISTRIBUTION, comprise screen band, screen band is arranged on the edge of metalized film side, described metalized film comprises: the first metal area and the second metal area, several equally spaced rectangle isolating bars are provided with in the second inside, metal area, isolating bar interconnects with screen band, and the second metal area is divided into separate unit, and the sheet resistance of the first metal area is larger than the sheet resistance of the second metal area, the sheet resistance of described first metal area is 10 ~ 20 ohm-sq units, and the sheet resistance of the second metal area is 2 ~ 10 ohm-sq units.
As the improvement of technique scheme, the sheet resistance of described first metal area is 12 ~ 18 ohm-sq units.
As the improvement of technique scheme, the sheet resistance of described second metal area is 4 ~ 8 ohm-sq units.
As the improvement of technique scheme, the geometrical relationship between described first metal area width d and metalized film overall width D is: 1/3D≤d≤1/2D.
Compared with prior art, implementation result of the present utility model is as follows for the utility model:
Metalized film described in the utility model, metalized film is formed the first metal area and the second metal area, and isolating bar is set in the second metal area, the distribution and the flowing that control electric charge is realized by the size controlling the first metal area and the second metal area sheet resistance, avoid electric charge in concentration of local, eliminate metalized film burnt or puncture, meet actual operation requirements.
Accompanying drawing explanation
Fig. 1 is a kind of metallized film structure schematic diagram controlling CHARGE DISTRIBUTION described in the utility model.
Embodiment
Below in conjunction with specific embodiments content of the present utility model is described.
As shown in Figure 1, be a kind of metallized film structure schematic diagram controlling CHARGE DISTRIBUTION described in the utility model, described metalized film comprises: basement membrane and metal deposition film, and metal deposition film is only arranged on the surface of basement membrane side.Described metal deposition film comprises: the first metal area 1 and the second metal area 2, first metal area 1 and the second metal area 2 are the zinc-aluminium composite bed adopting evaporation process to be formed on basement membrane, basement membrane is not formed screen band 3 by the region that metal deposition film covers, and screen band 3 is arranged on the edge of metalized film side.Also be provided with several equally spaced rectangle isolating bars 4 in the second inside, metal area 2, isolating bar 4 interconnects with screen band 3, and the second metal area 2 is divided into separate unit.
The metal thickness of the first metal area 1 is thinner than the thickness of the second metal area 2, make the sheet resistance of the first metal area 1 larger than the sheet resistance of the second metal area 2, the sheet resistance of the first metal area 1 is 10 ~ 20 ohm-sq units, and general control is in 12 ~ 18 ohm-sq unit range; The sheet resistance of the second metal area 2 is 2 ~ 10 ohm-sq units, and general control is in 4 ~ 8 ohm-sq unit range.Because the sheet resistance of the first metal area 1 is larger than the sheet resistance of the second metal area 2, therefore, when metalized film two ends apply voltage when there is potential difference, electric charge is skewness on the first metal area 1 and the second metal area 2, always flow from the first metal area 1 to the second metal area 2, the current density therefore in the second metal area 2 is larger.And the equally spaced isolating bar 4 of distribution in the second metal area 2, under the acting in conjunction of isolating bar 4 with screen band 3, further limit the movement of electric charge, therefore, electric charge is always assembled more in the second metal area 2, and the first metal area 1 is relatively less.The distribution of so effective control electric charge, current density is excessive burns or punch-through to avoid the first metal area 1 partial charge too much to cause.
Metalized film described in the utility model, the width of the first metal area 1 is d, and the overall width of metalized film is D, generally 1/3D≤d≤1/2D, like this, allows the second metal area 2 have enough spaces, avoids its internal current density excessive.
Claims (4)
1. one kind can control the metalized film of CHARGE DISTRIBUTION, comprise screen band (3), screen band (3) is arranged on the edge of metalized film side, it is characterized in that, described metalized film comprises: the first metal area (1) and the second metal area (2), several equally spaced rectangle isolating bars (4) are provided with in the second metal area (2) inside, isolating bar (4) is with (3) to interconnect with screen, and the second metal area (2) are divided into separate unit, and the sheet resistance of the first metal area (1) is larger than the sheet resistance of the second metal area (2), the sheet resistance of the first metal area (1) is 10 ~ 20 ohm-sq units, the sheet resistance of the second metal area (2) is 2 ~ 10 ohm-sq units.
2. a kind of metalized film controlling CHARGE DISTRIBUTION as claimed in claim 1, it is characterized in that, the sheet resistance of described first metal area (1) is 12 ~ 18 ohm-sq units.
3. a kind of metalized film controlling CHARGE DISTRIBUTION as claimed in claim 1, it is characterized in that, the sheet resistance of described second metal area (2) is 4 ~ 8 ohm-sq units.
4., as a kind of metalized film controlling CHARGE DISTRIBUTION as described in arbitrary in claims 1 to 3, it is characterized in that, the geometrical relationship between described first metal area (1) width d and metalized film overall width D is: 1/3D≤d≤1/2D.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420319276.1U CN204045396U (en) | 2014-06-16 | 2014-06-16 | A kind of metalized film controlling CHARGE DISTRIBUTION |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420319276.1U CN204045396U (en) | 2014-06-16 | 2014-06-16 | A kind of metalized film controlling CHARGE DISTRIBUTION |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204045396U true CN204045396U (en) | 2014-12-24 |
Family
ID=52246034
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420319276.1U Expired - Fee Related CN204045396U (en) | 2014-06-16 | 2014-06-16 | A kind of metalized film controlling CHARGE DISTRIBUTION |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204045396U (en) |
-
2014
- 2014-06-16 CN CN201420319276.1U patent/CN204045396U/en not_active Expired - Fee Related
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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: 20141224 Termination date: 20170616 |