CN212182159U - Metallized safety explosion-proof membrane - Google Patents
Metallized safety explosion-proof membrane Download PDFInfo
- Publication number
- CN212182159U CN212182159U CN202020693685.3U CN202020693685U CN212182159U CN 212182159 U CN212182159 U CN 212182159U CN 202020693685 U CN202020693685 U CN 202020693685U CN 212182159 U CN212182159 U CN 212182159U
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- Prior art keywords
- fuse
- vacuum evaporation
- edge
- insulation gaps
- reinforcing edge
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- Expired - Fee Related
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- 239000012528 membrane Substances 0.000 title claims abstract description 20
- 238000009413 insulation Methods 0.000 claims abstract description 42
- 239000002184 metal Substances 0.000 claims abstract description 28
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 26
- 238000007738 vacuum evaporation Methods 0.000 claims abstract description 23
- 239000011248 coating agent Substances 0.000 claims abstract description 12
- 238000000576 coating method Methods 0.000 claims abstract description 12
- 238000007747 plating Methods 0.000 claims description 13
- 239000003990 capacitor Substances 0.000 description 18
- 239000010408 film Substances 0.000 description 13
- 239000010409 thin film Substances 0.000 description 6
- 239000011104 metalized film Substances 0.000 description 5
- 238000004880 explosion Methods 0.000 description 4
- 230000015556 catabolic process Effects 0.000 description 3
- 230000002159 abnormal effect Effects 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 239000004743 Polypropylene Substances 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 229920006267 polyester film Polymers 0.000 description 1
- -1 polypropylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 238000003908 quality control method Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Images
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- Fixed Capacitors And Capacitor Manufacturing Machines (AREA)
Abstract
The utility model provides a metallized safety explosion-proof membrane, which comprises a base membrane and a vacuum evaporation metal coating, wherein one side of the base membrane is a screen belt edge, the other side of the base membrane is provided with a reinforcing edge, and the area between the reinforcing edge and the screen belt edge is a common area; the common area is provided with a plurality of parallel linear insulation gaps, V-shaped insulation gaps are arranged on the reinforcing edge corresponding to two adjacent linear insulation gaps, two ends of each V-shaped insulation gap are respectively connected with the rear ends of the two corresponding linear insulation gaps, and the vacuum evaporation metal coating is divided into a plurality of independent load areas; set up first fuse and second fuse on the V-arrangement insulation gap, the perpendicular distance between the outside boundary on first fuse and enhancement limit is less than the perpendicular distance between the outside boundary on second fuse and enhancement limit, through reasonable structural design, guarantees that the condenser is difficult to be punctured or melt and explode to reduce the appearance decay problem that "self-healing" causes.
Description
Technical Field
The utility model relates to a metallized film capacitor field, specific theory has related to a metallized safety rupture membrane.
Background
The metallized film is the core, key and main material of metallized film capacitor, and is made up by vacuum evaporating a layer of very thin metal on polypropylene or polyester film.
The film capacitor is a capacitor made by winding or laminating metallized films as electrode pairs, and can reduce the volume of unit capacity of the capacitor, improve the field intensity and be easily made into a capacitor with small volume and large capacity.
Compared with an electrolytic capacitor, the film capacitor has the advantages of high ripple current bearing capacity, high voltage resistance, low ESR and ESL, long service life, dry explosion resistance, no polarity, good high-frequency characteristic and the like, and has the characteristics of small dielectric loss, high insulation resistance and large temperature coefficient. In the new energy field, especially in the aspect of DC-LINK application occasion, extensively be used for energy storage and electric energy quality control, mainly include wind energy, solar energy, tidal energy, hybrid vehicle, pure electric vehicles, high pressure gentle straight transmission current conversion equipment etc. and the requirement to film capacitor includes: the film has the performances of pressure resistance, current impact resistance, safety and low temperature rise.
At present, the problems of large loss and thin film capacitor breakdown or melt explosion caused by temperature rise frequently occur in the thin film capacitor in the field of new energy, and the threat to the safety and stability of a system is caused.
In order to solve the above problems, people are always seeking an ideal technical solution.
Disclosure of Invention
The utility model aims at the not enough of prior art to a metallized safety rupture membrane that is difficult for being punctured or melt and explodes, reduces the appearance that "self-healing" causes and declines the problem is provided.
In order to realize the purpose, the utility model discloses the technical scheme who adopts is: a metallized safety explosion-proof membrane comprises a base membrane and a vacuum evaporation metal coating, wherein one side of the base membrane is left blank to serve as a screen band edge, a reinforcing edge is arranged on one side of the vacuum evaporation metal coating, which is far away from the screen band edge, and a region between the reinforcing edge and the screen band edge is a common region of the vacuum evaporation metal coating;
the common area is provided with a plurality of parallel linear insulation gaps, the front ends of the linear insulation gaps extend to the inner side boundary of the screen band edge, the rear ends of the linear insulation gaps extend to the inner side boundary of the reinforcing edge, V-shaped insulation gaps are arranged between two adjacent corresponding linear insulation gaps on the reinforcing edge, two ends of each V-shaped insulation gap are respectively connected with the rear ends of the two corresponding linear insulation gaps, and the vacuum evaporation metal coating is divided into a plurality of independent load areas by the linear insulation gaps and the V-shaped insulation gaps together;
and a first fuse and a second fuse are arranged on the V-shaped insulating gap, and the vertical distance between the first fuse and the outer side boundary of the reinforcing edge is smaller than the vertical distance between the second fuse and the outer side boundary of the reinforcing edge.
Basically, the thickness of the vacuum evaporation metal plating layer at the reinforcing edge is larger than that of the vacuum evaporation metal plating layer in the common area.
Basically, the first fuse and the second fuse are both vacuum-evaporated metal film fuses, and the first fuse and the second fuse are seamlessly linked with the connected load area.
Compared with the prior art, the utility model has substantive characteristics and progress, in particular to, the utility model discloses a straight line insulation gap and V-arrangement insulation gap separate the vacuum evaporation metal coating into independent load area, first fuse and second fuse are as the water conservancy diversion passageway in each independent load area, when condenser self or external appearance instant unusual film weak point, "self-healing" energy is enough big, first fuse can break at first, and consume some unusual, unexpected energy that applies to the film capacitance, reduce the harm to the film capacitance; meanwhile, because the second fuse is still on line, the load coating in the area is still effective, and the breakdown or the melting explosion caused by the short circuit between the film layers due to heat accumulation is avoided, so that the capacity attenuation of the film capacitor is greatly reduced.
Drawings
Fig. 1 is a schematic structural diagram of the metallized safety rupture disk of the present invention.
Fig. 2 is a schematic diagram of the layered structure of the metallized safety rupture membrane of the present invention.
In the figure: 1. a base film; 2. vacuum evaporating a metal coating; 3. screen band edges; 4. a reinforcing edge; 5. a general region; 6. a linear insulation gap; 7, V-shaped insulation gaps; 8. a first fuse; 9. a second fuse.
Detailed Description
The technical solution of the present invention will be described in further detail through the following embodiments.
As shown in figures 1 and 2, the metallized safety explosion-proof membrane comprises a base membrane 1 and a vacuum evaporation metal plating layer 2, one side of the base membrane is left blank to serve as a screen band edge 3, the vacuum evaporation metal plating layer is provided with a reinforcing edge 4 at one side far away from the screen band edge, an area between the reinforcing edge 4 and the screen band edge 3 is a common area 5 of the vacuum evaporation metal plating layer, and the thickness of the vacuum evaporation metal plating layer at the reinforcing edge 4 is larger than that of the vacuum evaporation metal plating layer in the common area 5.
The common area 5 is provided with a plurality of parallel linear insulation gaps 6, the front end of each linear insulation gap 6 extends to the inner side boundary of the screen band edge 3, the rear end of each linear insulation gap extends to the inner side boundary of the reinforcing edge 4, a V-shaped insulation gap 7 is arranged between two adjacent linear insulation gaps 6 corresponding to the reinforcing edge 4, two ends of each V-shaped insulation gap 7 are connected with the rear ends of the two corresponding linear insulation gaps 6 respectively, and each linear insulation gap 6 and the V-shaped insulation gap 7 divide the vacuum evaporation plating into a plurality of independent load areas together.
The V-shaped insulation gap 7 is characterized in that a first fuse 8 and a second fuse 9 are respectively arranged on two bevel edge sides of the V-shaped insulation gap 7, the vertical distance between the first fuse 8 and the outer side boundary of the reinforcing edge 4 is smaller than the vertical distance between the second fuse 9 and the outer side boundary of the reinforcing edge 4, the first fuse 8 and the second fuse 9 are both vacuum evaporation metal film fuses, and the first fuse 8 and the second fuse 9 are seamlessly linked with a connected load area.
The working principle is as follows:
the vacuum evaporation plating metal layer 2 is divided into a plurality of independent load areas by the linear insulation gap 6 and the V-shaped insulation gap 7, the first fuse and the second fuse are used as flow guide channels of the independent load areas, and the outer side boundary of the reinforcing edge is a metal spraying edge.
When the capacitor or the outside has instant abnormal thin film weak point, and the self-healing energy is too large, the first fuse is closer to the edge of the metal spraying, the first fuse 8 is broken first, partial abnormal energy and energy accidentally applied to the thin film capacitor are consumed, and the damage to the thin film capacitor is reduced; meanwhile, as the second fuse 9 is still on line, the load coating in the area is still effective, no heat accumulation causes short circuit between the membrane layers, and breakdown or melt explosion can not be caused, thereby ensuring that the capacity of the thin-film capacitor is kept at a higher level.
Adopt the metallized film capacitor that metallized safety rupture membrane in this application made, the online detection of 1 ten thousand hours of hanging net verifies, and after "self-healing" sound that film capacitor appears "pap", indexes such as capacitance capacity and temperature still are in normal condition.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting the same; although the present invention has been described in detail with reference to preferred embodiments, it should be understood by those skilled in the art that: the invention can be modified or equivalent substituted for some technical features; without departing from the spirit of the present invention, it should be understood that the scope of the claims is intended to cover all such modifications and variations.
Claims (3)
1. The utility model provides a metallized safety rupture membrane, includes base film and vacuum evaporation metal coating, its characterized in that: one side of the base film is left white to serve as a screen band edge, a reinforcing edge is arranged on one side, far away from the screen band edge, of the vacuum evaporation metal plating layer, and a region between the reinforcing edge and the screen band edge is a common region of the vacuum evaporation metal plating layer;
the common area is provided with a plurality of parallel linear insulation gaps, the front ends of the linear insulation gaps extend to the inner side boundary of the screen band edge, the rear ends of the linear insulation gaps extend to the inner side boundary of the reinforcing edge, V-shaped insulation gaps are arranged between two adjacent corresponding linear insulation gaps on the reinforcing edge, two ends of each V-shaped insulation gap are respectively connected with the rear ends of the two corresponding linear insulation gaps, and the vacuum evaporation metal coating is divided into a plurality of independent load areas by the linear insulation gaps and the V-shaped insulation gaps together;
and a first fuse and a second fuse are arranged on the V-shaped insulating gap, and the vertical distance between the first fuse and the outer side boundary of the reinforcing edge is smaller than the vertical distance between the second fuse and the outer side boundary of the reinforcing edge.
2. The metallized safety rupture membrane of claim 1, wherein: the thickness of the vacuum evaporation metal plating layer at the reinforcing edge is larger than that of the vacuum evaporation metal plating layer in the common area.
3. The metallized safety rupture membrane of claim 1 or 2, wherein: the first fuse and the second fuse are both vacuum-evaporated metal film fuses, and the first fuse and the second fuse are seamlessly linked with the connected load area.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020693685.3U CN212182159U (en) | 2020-04-30 | 2020-04-30 | Metallized safety explosion-proof membrane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020693685.3U CN212182159U (en) | 2020-04-30 | 2020-04-30 | Metallized safety explosion-proof membrane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212182159U true CN212182159U (en) | 2020-12-18 |
Family
ID=73765037
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020693685.3U Expired - Fee Related CN212182159U (en) | 2020-04-30 | 2020-04-30 | Metallized safety explosion-proof membrane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212182159U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111463011A (en) * | 2020-04-30 | 2020-07-28 | 郑州华晶新能源科技有限公司 | Metallized safety explosion-proof membrane |
-
2020
- 2020-04-30 CN CN202020693685.3U patent/CN212182159U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111463011A (en) * | 2020-04-30 | 2020-07-28 | 郑州华晶新能源科技有限公司 | Metallized safety explosion-proof membrane |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20201218 |
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| CF01 | Termination of patent right due to non-payment of annual fee |