GB1401347A - Capacitors - Google Patents
CapacitorsInfo
- Publication number
- GB1401347A GB1401347A GB639873A GB639873A GB1401347A GB 1401347 A GB1401347 A GB 1401347A GB 639873 A GB639873 A GB 639873A GB 639873 A GB639873 A GB 639873A GB 1401347 A GB1401347 A GB 1401347A
- Authority
- GB
- United Kingdom
- Prior art keywords
- spacer
- roll
- longitudinal direction
- thermal shrinkage
- sleeve
- 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
Links
- 239000003990 capacitor Substances 0.000 title abstract 4
- 125000006850 spacer group Chemical group 0.000 abstract 5
- 239000000463 material Substances 0.000 abstract 4
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 abstract 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 abstract 2
- 239000004411 aluminium Substances 0.000 abstract 2
- 229910052782 aluminium Inorganic materials 0.000 abstract 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 abstract 2
- 238000000034 method Methods 0.000 abstract 2
- -1 polypropylene Polymers 0.000 abstract 2
- 238000004804 winding Methods 0.000 abstract 2
- 239000004743 Polypropylene Substances 0.000 abstract 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 abstract 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 abstract 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 abstract 1
- 125000006267 biphenyl group Chemical group 0.000 abstract 1
- 238000005266 casting Methods 0.000 abstract 1
- 235000019438 castor oil Nutrition 0.000 abstract 1
- 239000004359 castor oil Substances 0.000 abstract 1
- 238000000576 coating method Methods 0.000 abstract 1
- 230000008602 contraction Effects 0.000 abstract 1
- 235000012343 cottonseed oil Nutrition 0.000 abstract 1
- 239000002385 cottonseed oil Substances 0.000 abstract 1
- 239000011888 foil Substances 0.000 abstract 1
- 239000007789 gas Substances 0.000 abstract 1
- ZEMPKEQAKRGZGQ-XOQCFJPHSA-N glycerol triricinoleate Natural products CCCCCC[C@@H](O)CC=CCCCCCCCC(=O)OC[C@@H](COC(=O)CCCCCCCC=CC[C@@H](O)CCCCCC)OC(=O)CCCCCCCC=CC[C@H](O)CCCCCC ZEMPKEQAKRGZGQ-XOQCFJPHSA-N 0.000 abstract 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 abstract 1
- 229910052737 gold Inorganic materials 0.000 abstract 1
- 239000010931 gold Substances 0.000 abstract 1
- 238000010438 heat treatment Methods 0.000 abstract 1
- 229910052751 metal Inorganic materials 0.000 abstract 1
- 239000002184 metal Substances 0.000 abstract 1
- 235000010446 mineral oil Nutrition 0.000 abstract 1
- 239000002480 mineral oil Substances 0.000 abstract 1
- 229910052759 nickel Inorganic materials 0.000 abstract 1
- 229910052757 nitrogen Inorganic materials 0.000 abstract 1
- 229920002492 poly(sulfone) Polymers 0.000 abstract 1
- 229920001083 polybutene Polymers 0.000 abstract 1
- 229920000515 polycarbonate Polymers 0.000 abstract 1
- 239000004417 polycarbonate Substances 0.000 abstract 1
- 229920000139 polyethylene terephthalate Polymers 0.000 abstract 1
- 239000005020 polyethylene terephthalate Substances 0.000 abstract 1
- 229920000098 polyolefin Polymers 0.000 abstract 1
- 229920001155 polypropylene Polymers 0.000 abstract 1
- 238000003825 pressing Methods 0.000 abstract 1
- 238000005096 rolling process Methods 0.000 abstract 1
- 229920002545 silicone oil Polymers 0.000 abstract 1
- 229910052709 silver Inorganic materials 0.000 abstract 1
- 239000004332 silver Substances 0.000 abstract 1
- 230000000087 stabilizing effect Effects 0.000 abstract 1
- 239000000126 substance Substances 0.000 abstract 1
- SFZCNBIFKDRMGX-UHFFFAOYSA-N sulfur hexafluoride Chemical compound FS(F)(F)(F)(F)F SFZCNBIFKDRMGX-UHFFFAOYSA-N 0.000 abstract 1
- 229960000909 sulfur hexafluoride Drugs 0.000 abstract 1
- 229920001169 thermoplastic Polymers 0.000 abstract 1
- 239000004416 thermosoftening plastic Substances 0.000 abstract 1
- 229910052725 zinc Inorganic materials 0.000 abstract 1
- 239000011701 zinc Substances 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G4/00—Fixed capacitors; Processes of their manufacture
- H01G4/32—Wound capacitors
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Fixed Capacitors And Capacitor Manufacturing Machines (AREA)
Abstract
1401347 Capacitors IMPERIAL CHEMICAL INDUSTRIES Ltd 25 Sept 1973 [18 Oct 1972 9 Feb 1973] 47917/72 and 6398/73 Heading H1M In a wound capacitor at least one of the dielectric spacers separating the electrodes comprises thermoplastic polymeric material having a thermal shrinkage in the longitudinal direction of from 5 to 10% and a ratio of thermal shrinkage in the longitudinal direction to that at right angles of from 1À7 : 1 to 10 : 1, and a sleeve covering at least 75% of the exposed surface area of the winding has a thermal shrinkage in the direction corresponding to the longitudinal direction of the spacer at least 1À02 times that of the spacer in this direction. Shrinkages are measured by heating a freely suspended film at the temperature at which the winding will be heat stabilized for 15 minutes and observing the contraction between reference points. The electrodes may be aluminium or tin foils or vacuum deposited layers of aluminium, zinc, silver, gold or nickel, and contact thereto may be by means of connection tags or by metal coatings on the end faces of the roll. The spacer material may be polypropylene or other polyolefins, polycarbonate, polysulphone, polyethylene terephthalate or polyethylene-1,2- diphenoxyethane-4,4<SP>1</SP>-dicarboxylate. The films may be manufactured by rolling, pressing, casting or preferably extruding using the bubble process, and may be treated by known methods to improve slip characteristics. The sleeve may be a cylindrical sheath slipped on to the roll but preferably comprises 10 to 50 turns of a web wound round the roll. The sleeve material is preferably the same as the spacer material, or has an equal or greater co-efficient of thermal expansion. The capacitor may be impregnated with, e.g. mineral oil, castor oil, cottonseed oil, silicone oil, chlorinated diphenyls or polybutene, or gases such as nitrogen or sulphur hexafluoride, prior to heat stabilizing.
Priority Applications (7)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB639873A GB1401347A (en) | 1972-10-18 | 1973-02-09 | Capacitors |
| AU61057/73A AU476062B2 (en) | 1972-10-18 | 1973-10-05 | Capacitors |
| IT2991973A IT1003148B (en) | 1972-10-18 | 1973-10-09 | CAPACITORS |
| NL7314144A NL7314144A (en) | 1972-10-18 | 1973-10-15 | |
| FR7337013A FR2204026B1 (en) | 1972-10-18 | 1973-10-17 | |
| DE19732352333 DE2352333A1 (en) | 1972-10-18 | 1973-10-18 | COILED ELECTRIC CAPACITOR |
| JP48116420A JPS4993857A (en) | 1972-10-18 | 1973-10-18 |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB4791772 | 1972-10-18 | ||
| GB639873A GB1401347A (en) | 1972-10-18 | 1973-02-09 | Capacitors |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1401347A true GB1401347A (en) | 1975-07-16 |
Family
ID=26240664
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB639873A Expired GB1401347A (en) | 1972-10-18 | 1973-02-09 | Capacitors |
Country Status (7)
| Country | Link |
|---|---|
| JP (1) | JPS4993857A (en) |
| AU (1) | AU476062B2 (en) |
| DE (1) | DE2352333A1 (en) |
| FR (1) | FR2204026B1 (en) |
| GB (1) | GB1401347A (en) |
| IT (1) | IT1003148B (en) |
| NL (1) | NL7314144A (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2527536C2 (en) * | 1975-06-20 | 1982-11-25 | Siemens AG, 1000 Berlin und 8000 München | Regenerative electrical condenser |
| DE3026986A1 (en) * | 1980-07-16 | 1982-02-04 | Siemens AG, 1000 Berlin und 8000 München | WRAP ELECTROLYTE CAPACITOR |
| EP0182181B1 (en) | 1984-11-15 | 1989-05-31 | Siemens Aktiengesellschaft | Roll-type electric capacitor |
-
1973
- 1973-02-09 GB GB639873A patent/GB1401347A/en not_active Expired
- 1973-10-05 AU AU61057/73A patent/AU476062B2/en not_active Expired
- 1973-10-09 IT IT2991973A patent/IT1003148B/en active
- 1973-10-15 NL NL7314144A patent/NL7314144A/xx not_active Application Discontinuation
- 1973-10-17 FR FR7337013A patent/FR2204026B1/fr not_active Expired
- 1973-10-18 JP JP48116420A patent/JPS4993857A/ja active Pending
- 1973-10-18 DE DE19732352333 patent/DE2352333A1/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| DE2352333A1 (en) | 1974-05-02 |
| NL7314144A (en) | 1974-04-22 |
| AU476062B2 (en) | 1976-09-09 |
| IT1003148B (en) | 1976-06-10 |
| JPS4993857A (en) | 1974-09-06 |
| FR2204026A1 (en) | 1974-05-17 |
| AU6105773A (en) | 1975-04-10 |
| FR2204026B1 (en) | 1977-03-11 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PCNP | Patent ceased through non-payment of renewal fee |