CN201549379U - Capacitor for energy-saving ballast - Google Patents
Capacitor for energy-saving ballast Download PDFInfo
- Publication number
- CN201549379U CN201549379U CN2009201985113U CN200920198511U CN201549379U CN 201549379 U CN201549379 U CN 201549379U CN 2009201985113 U CN2009201985113 U CN 2009201985113U CN 200920198511 U CN200920198511 U CN 200920198511U CN 201549379 U CN201549379 U CN 201549379U
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- Prior art keywords
- capacitor
- polypropylene
- film
- optical film
- aluminum
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- Expired - Fee Related
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Abstract
The utility model discloses a capacitor for energy-saving ballast, which comprises a metallized polypropylene aluminum film on a top layer of the capacitor and a polypropylene optical film on a bottom layer of the capacitor. Two aluminium foils which are mutually parallel are arranged between the metallized polypropylene aluminum film and the polypropylene optical film, a polypropylene optical film is arranged between the two aluminum films, margins are arranged on two sides of the metallized polypropylene aluminum film, the length L1 of the head end of the polypropylene optical film on the bottom layer is 15+-2mm so as to avoid short circuit of two polar plates of the capacitor, and the length L2 of the terminal end of the polypropylene optical film on the bottom layer is 55+-5mm so as to avoid short circuit of the two polar plates of the capacitor on the one hand and realize film coating outside the capacitor, thereby increasing insulation property of the capacitor. The capacitor can not directly in short circuit under impact of instantaneous high voltage and high current, and the two aluminum foils are separated via the polypropylene optical film so as to change the existing three-layered structure into five-layered structure, thereby effectively avoiding arcing breakdown and increasing reliability of the capacitor.
Description
Technical field
The utility model relates to a kind of capacitor.
Background technology
Existing CBB81 type capacitor adopts polypropylene screen as medium, metallized polypropylene film and aluminium foil form the internal series-connection coiling and form, as depicted in figs. 1 and 2 for having the structural representation of capacitor now, its internal structure level is: ground floor is metallization double-edge polypropylene aluminium film, the second layer is two aluminium foils, and the 3rd layer is polypropylene light film.In this capacitor between two aluminium foils spacing too little, when applying high pressure, occur easily causing the arcing punch-through and direct short-circuit, the capacitor reliability is low.
The utility model content
The purpose of this utility model is to provide electricity-saving lamp ballast capacitor, can effectively solve existing CBB81 type capacitor and cause arcing to puncture the problem that the capacitor reliability is low when applying high pressure easily.
In order to solve the problems of the technologies described above, the utility model adopts following technical scheme: electricity-saving lamp ballast capacitor, comprise the metallized polypropylene aluminium film of top layer and the polypropylene light film of bottom, it is characterized in that: be provided with two aluminium foils that are parallel to each other between metallized polypropylene aluminium film and the polypropylene light film, be provided with polypropylene light film between two aluminium foils.
Further, metallized polypropylene aluminium film both sides are provided with and stay the limit.
Further, the head end length L 1 of bottom polypropylene light film is 15 ± 2mm, can prevent that capacitor two-plate short circuit phenomenon from taking place.
Further, the terminal length L 2 of bottom polypropylene light film is 55 ± 5mm, can prevent the short circuit of capacitor two-plate on the one hand; Can realize the capacitor peplos on the other hand, improve its insulation property.
The utility model is owing to adopted technique scheme, can direct short-circuit under the impact of the big electric current of instant high-voltage, between two aluminium foils, separate with polypropylene light film, make existing three-decker change into five-layer structure, effectively avoid the arcing punch-through, improved the reliability of capacitor.
Description of drawings
The utility model is described in further detail below in conjunction with accompanying drawing:
Fig. 1 is the fuse expanded view of existing capacitor;
Fig. 2 be among Fig. 1 A-A to sectional drawing;
Fig. 3 is the fuse expanded view of the utility model electricity-saving lamp ballast with capacitor;
Fig. 4 be among Fig. 3 B-B to sectional drawing.
Embodiment
As shown in Figure 3 and Figure 4, be the utility model electricity-saving lamp ballast capacitor, comprise the metallized polypropylene aluminium film 1 of top layer and the polypropylene light film 3 of bottom, metallized polypropylene aluminium film 1 both sides are provided with stays limit 4, head end 31 length L 1 of bottom polypropylene light film 3 are 15 ± 2mm, terminal 32 length L 2 of bottom polypropylene light film 3 are 55 ± 5mm, be provided with two aluminium foils that are parallel to each other 2 between metallized polypropylene aluminium film 1 and the polypropylene light film 3, effective length is a length L shown in Fig. 3, effective width is a width W shown in Fig. 4, be provided with polypropylene light film 3 between two aluminium foils 2, be capacitor internal structure level: ground floor is a metallized polypropylene aluminium film 1, and the second layer is that 2, the three layers on aluminium foil is a polypropylene light film 3, the 4th layer is aluminium foil 2, and layer 5 is a polypropylene light film 3.Metallized polypropylene aluminium film 1 as public pole plate, will be separated with polypropylene light film 3 between two aluminium foils 2, when applying high pressure, effectively avoided the arcing punch-through, improved the reliability of capacitor.
Claims (4)
1. electricity-saving lamp ballast capacitor, comprise the metallized polypropylene aluminium film (1) of top layer and the polypropylene light film (3) of bottom, it is characterized in that: be provided with two aluminium foils that are parallel to each other (2) between described metallized polypropylene aluminium film (1) and the polypropylene light film (3), be provided with polypropylene light film (3) between described two aluminium foils (2).
2. electricity-saving lamp ballast capacitor according to claim 1 is characterized in that: described metallized polypropylene aluminium film (1) both sides are provided with stays limit (4).
3. electricity-saving lamp ballast capacitor according to claim 1 is characterized in that: head end (31) length L 1 of described bottom polypropylene light film (3) is 15 ± 2mm.
4. electricity-saving lamp ballast capacitor according to claim 1 is characterized in that: terminal (32) length L 2 of described bottom polypropylene light film (3) is 55 ± 5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201985113U CN201549379U (en) | 2009-09-30 | 2009-09-30 | Capacitor for energy-saving ballast |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201985113U CN201549379U (en) | 2009-09-30 | 2009-09-30 | Capacitor for energy-saving ballast |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201549379U true CN201549379U (en) | 2010-08-11 |
Family
ID=42604559
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201985113U Expired - Fee Related CN201549379U (en) | 2009-09-30 | 2009-09-30 | Capacitor for energy-saving ballast |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201549379U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104916439A (en) * | 2015-05-10 | 2015-09-16 | 长兴华强电子有限公司 | High temperature resistance miniature high-voltage capacitor |
| CN106252075A (en) * | 2016-08-11 | 2016-12-21 | 苏州柯创电子材料有限公司 | The manufacturing process of metallized film capacitor |
-
2009
- 2009-09-30 CN CN2009201985113U patent/CN201549379U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104916439A (en) * | 2015-05-10 | 2015-09-16 | 长兴华强电子有限公司 | High temperature resistance miniature high-voltage capacitor |
| CN106252075A (en) * | 2016-08-11 | 2016-12-21 | 苏州柯创电子材料有限公司 | The manufacturing process of metallized 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 |
Granted publication date: 20100811 Termination date: 20160930 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |