CN2146048Y - Plastic film capacitor - Google Patents
Plastic film capacitor Download PDFInfo
- Publication number
- CN2146048Y CN2146048Y CN 92221821 CN92221821U CN2146048Y CN 2146048 Y CN2146048 Y CN 2146048Y CN 92221821 CN92221821 CN 92221821 CN 92221821 U CN92221821 U CN 92221821U CN 2146048 Y CN2146048 Y CN 2146048Y
- Authority
- CN
- China
- Prior art keywords
- plastic film
- film capacitor
- terylene
- epoxy resin
- adhesive tape
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model relates to a plastic film capacitor, which comprises a core 3, leading wires 5, a metal spraying electrode 4, an insulating gasket 6, epoxy resin 2, an inner terylene adhesive tape 9, a combined band 8 made of pressing an aluminum foil and a terylene adhesive tape, and an outer terylene adhesive tape 9. The plastic film capacitor has heat shock resistance and high humidity resistance, and the plastic film capacitor conforms to Chinese standard.
Description
Plastic film capacitor relates to the metal plastic film capacitor, existing plastic film capacitor, and its structure has following two types.
1, with the aluminum hull encapsulation, with the epoxy resin perfusion,
2, adopt polyester adhesive tape parcel, then with the epoxy resin perfusion,
The capacitor major defect of above-mentioned two kinds of structures is that humidity resistance is poor, according to national military standard carry out thermal shock, soak with moisture-resistant test after the insulation resistance parameter index defective, this plastic film capacitor does not reach military standard of China.Its main cause be epoxy resin and aluminum hull and polyester adhesive tape bonding not closely, the space is many.
The purpose of this utility model is to make a kind of plastic film capacitor that meets military standard of China, and its insulation resistance parameter behind thermal shock, immersion and moisture-resistant test is qualified.
Describe the utility model in detail below in conjunction with accompanying drawing.The improvement of this programme is to make full use of epoxy resin and the strong characteristics of metal bonding performance, realizes that the capacitor two ends of non-metal case encapsulation closely bond with epoxy resin and metal, selects for use aluminium foil to make the integument of fuse, termination and epoxy bond.
Fig. 1, the plastic film capacitor of the encapsulation of prior art aluminum hull, infusion epoxy resin.
Fig. 2, the plastic film capacitor of prior art bag terylene adhesive tape, infusion epoxy resin.
The plastic film capacitor of Fig. 3, cladding rubber alloy band infusion epoxy resin of the present utility model.
As seen from Figure 1, the aluminum hull encapsulation of prior art, the plastic film capacitor of infusion epoxy resin, comprise shell 1, capacitor body 3, lead-in wire 5, gilding layer electrode 4, epoxy resin 2, insulation cushion 6, epoxy resin 2 and aluminum hull 1, insulation cushion 6 and go between 5 bondingly, subject matter is that the aluminum hull surface is difficult for taking out stains, epoxy resin 2 is bonding not tight with aluminum hull 1, therefore moisture resistance is poor, and insulation resistance descends.
As seen from Figure 2, the bag terylene adhesive tape of prior art, the infusion epoxy resin plastic film capacitor comprises capacitor body 3, epoxy resin 2, lead-in wire 5, gilding layer electrode 4, its shell wraps up with the terylene adhesive tape, owing to termination gilding layer rough surface, increased the adhesion strength of epoxy resin, humidity resistance must be apt to some extent, but do not deal with problems fully, main cause is that terylene adhesive tape and epoxy bond are not tight.
Fig. 3 is a cladding rubber alloy band of the present utility model, the plastic film capacitor of infusion epoxy resin, comprise capacitor body 3, lead-in wire 5, gilding layer electrode 4, epoxy resin 2, be with 9 in its fuse 5 outer one deck of parcel earlier terylene glue, wrap up composite band 8 again, wrap up terylene glue tyre 7 again, because epoxy resin 2 and composite band 8, gilding layer electrode 4, tinned lead 5 contacts, epoxy resin 2 parcels closely, solved the problem of humidity resistance difference, be characterized in that composite band 8 forms for aluminium foil and the pressing of terylene adhesive tape, aluminium foil and epoxy bond are quite tight, when capacitor is done heat shock resistance, when immersion and moisture-resistant test, capacitor termination epoxy resin is indeformable, bonding is firm, the insulation resistance parameter constant.
Embodiment: see Fig. 3, plastic film capacitor comprises fuse 3, is with 9 in lead-in wire 5, the gilding layer electrode 4, terylene, epoxy resin 2, composite band 8, terylene glue in addition 7.Concrete technology is as follows:
1, preparation is welded with the capacitor body 5 of lead-in wire, is formed by metallized polyimide carbonic ether tape wrapping.
2, in capacitor body outsourcing 1 to 5 circle terylene glue, be with 9, width than the width of capacitor core 3 wide 0.5 to 3mm.
3, the composite band 8 of preparation aluminium foil and polyester belt is that to be pressed in thickness be on 0.01 to 0.06mm the terylene adhesive tape for the aluminium foil of 7～20 μ m with thickness.
4, cladding crossed belt 1 to 3 circle, the width of cladding crossed belt than in the terylene glue with 9 width wide 1 to 3mm.
5, encrust terylene adhesive tape 2 to 5 circle, its width again than compound bandwidth 1 to 4mm.
6, spray gilding layer electrode 4 at the capacitor end.
7, perfusion two ends epoxy resin, oven dry.
8, electrical measurement, mark will, check.
Following table is listed thermal shock, immersion and the moisture-resistant test result of three kinds of structures:
The utility model is used for electric meter, post and telecommunications, military engineering.Product type has: the 7LSK28 type.
Claims (2)
1, plastic film capacitor, comprise fuse 3, lead-in wire 5, gilding layer electrode 4, insulation cushion 6, epoxy resin 2, terylene adhesive tape tyre 7, it is characterized by to have outside the fuse 3 and be with 9 parcels in the terylene glue, the composite band 8 that becomes with terylene adhesive tape stitching surface of alclad paper tinsel again, it has gilding layer electrode 4, epoxy resin 3 outward then.
2, according to the plastic film capacitor of claim 1, it is characterized by and be with 9 width in the terylene glue than capacitor body 3 wide 0.5mm to 3mm, the number of turns is 2 to 5 circles, and composite band 8 width are than being with 9 wide 1 to 3mm in the terylene glue, and the number of turns is 1 to 3 circle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92221821 CN2146048Y (en) | 1992-12-03 | 1992-12-03 | Plastic film capacitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92221821 CN2146048Y (en) | 1992-12-03 | 1992-12-03 | Plastic film capacitor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2146048Y true CN2146048Y (en) | 1993-11-10 |
Family
ID=33768540
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 92221821 Expired - Fee Related CN2146048Y (en) | 1992-12-03 | 1992-12-03 | Plastic film capacitor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2146048Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101936784A (en) * | 2010-08-31 | 2011-01-05 | 美的集团有限公司 | Temperature measuring device of shaft type capacitor |
| CN110164691A (en) * | 2019-05-06 | 2019-08-23 | 艾华新动力电容(苏州)有限公司 | A kind of high moisture-proof metalizing polypropylene thin film capacitor and its processing method |
-
1992
- 1992-12-03 CN CN 92221821 patent/CN2146048Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101936784A (en) * | 2010-08-31 | 2011-01-05 | 美的集团有限公司 | Temperature measuring device of shaft type capacitor |
| CN110164691A (en) * | 2019-05-06 | 2019-08-23 | 艾华新动力电容(苏州)有限公司 | A kind of high moisture-proof metalizing polypropylene thin film capacitor and its processing method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |