DE468270C - Process for the production of cast electrical capacitors with sulfur-soaked insulating material - Google Patents
Process for the production of cast electrical capacitors with sulfur-soaked insulating materialInfo
- Publication number
- DE468270C DE468270C DEB129087D DEB0129087D DE468270C DE 468270 C DE468270 C DE 468270C DE B129087 D DEB129087 D DE B129087D DE B0129087 D DEB0129087 D DE B0129087D DE 468270 C DE468270 C DE 468270C
- Authority
- DE
- Germany
- Prior art keywords
- sulfur
- insulating material
- production
- soaked
- electrical capacitors
- 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 claims description 11
- 239000011810 insulating material Substances 0.000 title claims description 10
- 238000004519 manufacturing process Methods 0.000 title claims description 4
- 238000000034 method Methods 0.000 title claims description 3
- 238000002844 melting Methods 0.000 claims description 5
- 230000008018 melting Effects 0.000 claims description 5
- 239000007788 liquid Substances 0.000 claims description 3
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 6
- 239000012170 montan wax Substances 0.000 description 6
- 229910052717 sulfur Inorganic materials 0.000 description 6
- 239000011593 sulfur Substances 0.000 description 6
- 238000002791 soaking Methods 0.000 description 3
- 238000005470 impregnation Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 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
- H01G4/002—Details
- H01G4/018—Dielectrics
- H01G4/20—Dielectrics using combinations of dielectrics from more than one of groups H01G4/02 - H01G4/06
- H01G4/22—Dielectrics using combinations of dielectrics from more than one of groups H01G4/02 - H01G4/06 impregnated
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Fixed Capacitors And Capacitor Manufacturing Machines (AREA)
Description
Verfahren zur Herstellung von vergossenen elektrischen Kondensatoren mit schwefelgetränktem Isolierstoff Es sind bereits Herstellungsverfahren für elektrische Kondensatoren bekannt, die darin bestehen, daß deren Isolierstoff mit einer aus Schwefel bestehenden Tränkmasse behandelt wird, und daß nach dem Erkalten der Tränkmasse der Kondensator mit einem anderen Isolierstoff vergossen wird. Bei diesen Kondensatoren können jedoch beim Erstarren des Schwefels durch dessen starkes Schwinden leicht Hohlräume im Dielektrikum entstehen, die sich dann sofort mit Luft füllen. Um diesen Übelstand zu vermeiden, werden die Kondensatoren erfindungsgemäß unmittelbar nach ihrem Tränken mit Schwefel, also solange dieser noch flüssig ist, noch mit einem Isolierstoff von niedrigerem Schmelzpunkt als demjenigen des Schwefels getränkt. Das zweite Tränken geschieht zweckmäßig durch Eintauchen des Kondensators in den flüssig gemachten Isolierstoff. Es kann dann beim Erstarren des Schwefels nur der zweite Isolierstoff in die im Kondensator sich bildenden Hohlräume nachgesaugt werden, aber keine Luft.Process for the production of encapsulated electrical capacitors with sulfur-soaked insulating material There are already manufacturing processes for electrical Capacitors known, which consist in that the insulating material with one from Sulfur existing impregnation mass is treated, and that after cooling of the impregnation mass the capacitor is encapsulated with another insulating material. With these capacitors can, however, easily when the sulfur solidifies due to its strong shrinkage Cavities arise in the dielectric, which then immediately fill with air. To this one To avoid inconvenience, the capacitors according to the invention are immediately after their soaking with sulfur, so as long as this is still liquid, still with one Insulating material with a lower melting point than that of the sulfur impregnated. The second soaking is expediently done by immersing the capacitor in the liquidized insulating material. When the sulfur solidifies, only the can second insulating material is sucked into the cavities forming in the capacitor, but no air.
Als Isolierstoff für das Nachtränken des Dielektrikums eignet sich z. B. Montanwachs, dessen Schmelzpunkt zwischen 70 und 8o° C liegt. Die mit diesem Stoff nachbehandelten Kondensatoren haben die hohe Durchschlagfestigkeit der nur mit Montanwachs getränkten Kondensatoren, ohne jedoch deren Nachteil zu zeigen. Dieser Nachteil besteht darin, daß das Montanwachs beim Erwärmen über seinen Schmelzpunkt hinaus aus dem Kondensator ausfließt, so daß die nur mit Montanwachs getränkten Kondensatoren gegen Wärme sehr empfindlich sind. Wird Montanwachs aber lediglich zum Ausfüllen der beim Erkalten im schwefelgetränkten Kondensator entstehenden Hohlräume benutzt, so bleibt der Kondensator bis zum Schmelzpunkt des Schwefels gebrauchsfähig, denn das bei Erwärmung des Kondensators etwa flüssig werdende Montanwachs kann nicht herausfließen, da es durch Kapillarwirkung festgehalten wird.As an insulating material for re-soaking the dielectric is z. B. montan wax, the melting point of which is between 70 and 80 ° C. The capacitors after-treated with this substance have the high dielectric strength of the capacitors only impregnated with montan wax, but without showing their disadvantage. This disadvantage is that the montan wax flows out of the condenser when it is heated above its melting point, so that the condensers only soaked with montan wax are very sensitive to heat. However, if montan wax is only used to fill the cavities that arise in the sulfur-soaked condenser when it cools, the condenser remains usable up to the melting point of the sulfur, because the montan wax, which becomes liquid when the condenser is heated, cannot flow out because it is held in place by capillary action.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEB129087D DE468270C (en) | 1927-01-06 | 1927-01-06 | Process for the production of cast electrical capacitors with sulfur-soaked insulating material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEB129087D DE468270C (en) | 1927-01-06 | 1927-01-06 | Process for the production of cast electrical capacitors with sulfur-soaked insulating material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE468270C true DE468270C (en) | 1928-11-09 |
Family
ID=6997289
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DEB129087D Expired DE468270C (en) | 1927-01-06 | 1927-01-06 | Process for the production of cast electrical capacitors with sulfur-soaked insulating material |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE468270C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE971186C (en) * | 1942-04-28 | 1958-12-24 | Bosch Gmbh Robert | Process for manufacturing electrical capacitors |
-
1927
- 1927-01-06 DE DEB129087D patent/DE468270C/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE971186C (en) * | 1942-04-28 | 1958-12-24 | Bosch Gmbh Robert | Process for manufacturing electrical capacitors |
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