CN201936747U - Multiple axial polypropylene film capacitor - Google Patents
Multiple axial polypropylene film capacitor Download PDFInfo
- Publication number
- CN201936747U CN201936747U CN2010206936243U CN201020693624U CN201936747U CN 201936747 U CN201936747 U CN 201936747U CN 2010206936243 U CN2010206936243 U CN 2010206936243U CN 201020693624 U CN201020693624 U CN 201020693624U CN 201936747 U CN201936747 U CN 201936747U
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- polypropylene film
- capacitor
- dielectric layer
- lead
- axial
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- Expired - Fee Related
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Abstract
The utility model relates to the filed of capacitors, in particular to a multiple axial polypropylene film capacitor, comprising a capacitor core and lead-out wires positioned at two ends of the capacitor core, wherein the capacitor core comprises a first polypropylene film medium layer and a second polypropylene film medium layer; and at least two lead-out electrodes are stacked on the first polypropylene film medium layer, at least two lead-out electrodes are stacked between the second polypropylene film medium layer and the first polypropylene film medium layer, and all the lead-out electrodes are connected in series. The multiple axial polypropylene film capacitor has the advantages of high voltage withstanding capacity, small volume, long service life and the like.
Description
Technical field
The utility model relates to capacitor area, is specifically related to the axial polypropylene film capacitor of a kind of many strings.
Background technology
Capacitor is as the electronic component on basis, be widely used with electronic product in.Capacitor is divided into different kinds according to the difference of its medium.At present, the polypropylene film capacitor development attracts attention, and polypropylene film capacitor adopts metallized polypropylene film to reel spray metal, termination scolder, the outer wrapping polyester tape, the two ends infusion epoxy resin is sealed, and loss is little, and is in light weight, the self-healing property excellence, good temp characteristic, reliability height, precision advantages of higher; Shortcomings such as there is device proof voltage ability in existing polypropylene film capacitor, and relative volume is big, and useful life is short are difficult to be applied to big capacity electronic product, the needs of electronic product development in can not satisfying.
The utility model content
In order to overcome the deficiencies in the prior art, the purpose of this utility model is to provide a kind of many strings axial polypropylene film capacitor, improves the proof voltage ability of capacitor, satisfies the requirement of big capacity electronic product.
For achieving the above object, the utility model adopts following technical scheme:
The axial polypropylene film capacitor of a kind of many strings, comprise capacitor body, be positioned at the lead-in wire at capacitor body two ends, described capacitor body comprises ground floor polypropylene film dielectric layer and second layer polypropylene film dielectric layer, stack at least two extraction electrodes on the ground floor polypropylene film dielectric layer, stack at least two extraction electrodes on the second layer polypropylene film dielectric layer and between the ground floor polypropylene film dielectric layer, each extraction electrode connects with series system.
Extraction electrode described in the utility model is the metallized polypropylene film electrode.
Capacitor body described in the utility model is wrapped with PET (polyethylene terephthalate) adhesive tape.
The arbitrary end of capacitor body described in the utility model is provided with the termination, and lead-in wire stretches out from the termination.
Spray metal scolder on the described termination, brazing metal adopts zinc or Zinc-tin alloy.
The beneficial effects of the utility model are: the structure of capacitor body of the present utility model is equivalent to form a plurality of small capacitors, these small capacitors connect into a jumbo capacitor with series system, improved the proof voltage ability of capacitor, compare existing polypropylene film capacitor with volume, its proof voltage ability improves greatly, mean that also its relative volume is less, satisfied of the requirement of big capacity small size electronic product for electronic component.Therefore the utlity model has advantages such as proof voltage ability height, volume are little, long service life.
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.
Description of drawings
Fig. 1 is the axial polypropylene film capacitor structural representations of many strings of the present utility model;
Fig. 2 is a capacitor body structural representation of the present utility model.
Embodiment
As described in Fig. 1, Fig. 2, the axial polypropylene film capacitor of many strings of the present utility model, comprise electric capacitor body 1, be positioned at the lead-in wire 2 at capacitor body 1 two ends, described capacitor body 1 comprises ground floor polypropylene film dielectric layer 11 and second layer polypropylene film dielectric layer 12, stack at least two on the ground floor polypropylene film dielectric layer 11 and draw poly-electrode, stack at least two extraction electrodes 13 on the second layer polypropylene film dielectric layer 12 and between the ground floor polypropylene film dielectric layer, each extraction electrode 13 connects with series system.In the utility model, an extraction electrode that is positioned on the second layer polypropylene film dielectric layer 12 that is positioned at an extraction electrode on the ground floor polypropylene film dielectric layer 11 and is adjacent is formed a small capacitor, by that analogy, in whole capacitor device fuse, form at least two small capacitors, these capacitors are connected into a big capacitor by extraction electrode, have increased the proof voltage ability of capacitor greatly.
In the preferred scheme of the utility model, described extraction electrode is the metallized polypropylene film electrode, its very thin thickness, adopt the capacitor of kind electrode to dwindle the volume of capacitor unit capacity, also therefore be easier to make small-sized, capacitor capacious satisfies the requirement of big capacity small size electronic product.
Capacitor body described in the utility model preferred version is wrapped with PET (polyethylene terephthalate) adhesive tape 3, has moisture-proof role, further prolongs the useful life of capacitor.
In the preferred version of the present utility model, the arbitrary end of described capacitor body is provided with the termination, and lead-in wire stretches out from the termination.Spray metal scolder on the described termination, brazing metal adopts zinc or Zinc-tin alloy.
Above-mentioned execution mode only is a preferred version of the present utility model, can not regard the restriction to the utility model protection range as.The distortion and the replacement of any unsubstantiality that those skilled in the art is done on basis of the present utility model all belong to protection range of the present utility model.
Claims (5)
1. the axial polypropylene film capacitor of string more than a kind comprises capacitor body, is positioned at the lead-in wire at capacitor body two ends; It is characterized in that: described capacitor body comprises ground floor polypropylene film dielectric layer and second layer polypropylene film dielectric layer, stack at least two extraction electrodes on the ground floor polypropylene film dielectric layer, stack at least two extraction electrodes on the second layer polypropylene film dielectric layer and between the ground floor polypropylene film dielectric layer, each extraction electrode connects with series system.
2. the axial polypropylene film capacitor of many strings according to claim 1, it is characterized in that: described extraction electrode is the metallized polypropylene film electrode.
3. the axial polypropylene film capacitor of many strings according to claim 1, it is characterized in that: described capacitor body is wrapped with the polyethylene terephthalate adhesive tape.
4. the axial polypropylene film capacitor of many strings according to claim 1, it is characterized in that: the arbitrary end of described capacitor body is provided with the termination, and lead-in wire stretches out from the termination.
5. the axial polypropylene film capacitor of many strings according to claim 4 is characterized in that: spray metal scolder on the described termination.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206936243U CN201936747U (en) | 2010-12-31 | 2010-12-31 | Multiple axial polypropylene film capacitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206936243U CN201936747U (en) | 2010-12-31 | 2010-12-31 | Multiple axial polypropylene film capacitor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201936747U true CN201936747U (en) | 2011-08-17 |
Family
ID=44448263
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206936243U Expired - Fee Related CN201936747U (en) | 2010-12-31 | 2010-12-31 | Multiple axial polypropylene film capacitor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201936747U (en) |
-
2010
- 2010-12-31 CN CN2010206936243U patent/CN201936747U/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: 20110817 Termination date: 20181231 |