DE1152169B - Pressure glass leadthrough for the metallic housing of electrical capacitors or other electrical components - Google Patents
Pressure glass leadthrough for the metallic housing of electrical capacitors or other electrical componentsInfo
- Publication number
- DE1152169B DE1152169B DES67969A DES0067969A DE1152169B DE 1152169 B DE1152169 B DE 1152169B DE S67969 A DES67969 A DE S67969A DE S0067969 A DES0067969 A DE S0067969A DE 1152169 B DE1152169 B DE 1152169B
- Authority
- DE
- Germany
- Prior art keywords
- insulating tube
- pressure glass
- electrical
- glass
- pressure
- 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.)
- Pending
Links
- 239000011521 glass Substances 0.000 title claims description 30
- 239000003990 capacitor Substances 0.000 title claims description 5
- 239000004020 conductor Substances 0.000 claims description 5
- 239000000919 ceramic Substances 0.000 claims description 4
- 238000002844 melting Methods 0.000 claims description 2
- 230000008018 melting Effects 0.000 claims description 2
- 239000002184 metal Substances 0.000 description 3
- 239000011324 bead Substances 0.000 description 2
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 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
- H01G2/00—Details of capacitors not covered by a single one of groups H01G4/00-H01G11/00
- H01G2/10—Housing; Encapsulation
- H01G2/103—Sealings, e.g. for lead-in wires; Covers
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B17/00—Insulators or insulating bodies characterised by their form
- H01B17/26—Lead-in insulators; Lead-through insulators
- H01B17/30—Sealing
- H01B17/303—Sealing of leads to lead-through insulators
- H01B17/305—Sealing of leads to lead-through insulators by embedding in glass or ceramic material
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Insulators (AREA)
Description
Druckglasdurchführung für das metallische Gehäuse elektrischer Kondensatoren oder anderer elektrischer Bauelemente Die Erfindung betrifft eine Druckglasdurchführung für das metallische Gehäuse elektrischer Kondensatoren oder anderer elektrischer Bauelemente mit durch Einschmelzen eines beidseitig über den Glaskörper überstehenden Isolierstoffrohres vergrößerter Kriechstrecke zwischen dem im Innern des Isolierstoffrohres konzentrisch durchgeführten elektrischen Leiter und dem Gehäuse.Pressure glass feed-through for the metallic housing of electrical capacitors or other electrical components The invention relates to a pressure glass bushing for the metallic housing of electrical capacitors or other electrical Components with a protruding on both sides over the glass body by melting Insulating tube increased creepage distance between the inside of the insulating tube concentric electrical conductor and the housing.
Es sind bereits aus Glaseinschmelzungen bestehende isolierte Durchführungen durch leitende Wände mit verlängerten Kriechstromwegen bekannt, die durch Erhitzen und Anpressen eines oder zweier Glasrohrstücke an und um eine Gehäuseöffnung gebildet werden, wobei sich das Glas mit der leitenden Wand verbindet und wobei durch das Glasrohr ein elektrischer Leiter geführt und dort eingeschmolzen wird. Eine solche Durchführung hat jedoch nicht die mechanische Festigkeit und sonstigen Vorteile einer Druckglasdurchführung. Bei elektrischen Bauelementen, z. B. Kondensatoren, die in metallischen Gehäusen eingebaut sind, werden, falls ein besonders dichter Einbau gefordert wird, stets Druckglasdurchführungen verwendet. Da bekanntlich in der Druckglastechnik das Glas nur geradlinig in Verlängerung eines Metallstützringes eingeschmolzen werden kann, entstehen oft Schwierigkeiten, bei kleinen Gehäuseabmessungen und entsprechend kleinen Durchführungen die vorschriftsmäßigen Kriechstrecken herzustellen.There are already insulated bushings made of glass seals known by conductive walls with elongated leakage current paths caused by heating and pressing one or two pieces of glass tubing onto and around a housing opening where the glass connects to the conductive wall and where through the Glass tube an electrical conductor is guided and melted down there. Such However, implementation does not have the mechanical strength and other advantages a pressure glass bushing. In electrical components, e.g. B. capacitors, which are built into metallic housings, if one is particularly tight Installation is required, pressure glass bushings are always used. As is well known in In pressure glass technology, the glass is only straight in extension of a metal support ring can be melted down, difficulties often arise with small housing dimensions and establish the correct creepage distances in accordance with small bushings.
Es sind ferner Druckglasdurchführungen bekannt, bei denen in die Bohrung der als Durchführung dienenden Glasperle ein Keramikrohr beidseitig überstehend eingesetzt bzw. eingeschmolzen ist. Der Kriechweg einer derartigen Durchführung ist um die halbe Länge des Keramikrohres verlängert.There are also pressure glass bushings known in which in the bore a ceramic tube protruding on both sides of the glass bead serving as a bushing inserted or melted down. The creepage distance of such a implementation is extended by half the length of the ceramic tube.
Einen gegenüber der bekannten Durchführung etwa verdoppelten Kriechweg weist die neue Druckglasdurchführung auf, bei der erfindungsgemäß der das eingeschmolzene Isolierstoffrohr umgebende Druckglaskörper von der Isolierrohrinnenwand zum Durchführungsleiter in gleicher Dicke weitergeführtist.A creepage distance that is roughly doubled compared to the known implementation has the new pressure glass leadthrough, in which, according to the invention, the melted one The pressure glass body surrounding the insulating tube from the inner wall of the insulating tube to the bushing conductor is continued in the same thickness.
Gemäß Weiterbildungen nach der Erfindung kann das Isolierstoffrohr in an sich bekannter Weise aus Keramik oder Glas bestehen.According to developments according to the invention, the insulating tube consist of ceramic or glass in a manner known per se.
Zur weiteren Erläuterung der Erfindung mögen die Figuren der Zeichnung dienen.To further explain the invention, like the figures of the drawing to serve.
Fig. 1 zeigt eine bekannte Druckglasdurchführung. Dabei ist, wie in der Druckglastechnik üblich, das Glas 1 geradlinig in Verlängerung des Metallstützringes 2 eingeschmolzen, so daß die Kriechstrecke gleich der kürzesten Verbindung zwischen dem Metallstützring 2 und der Durchführung 3 ist. Fig. 2 zeigt eine erhöhte Glasperle, die an sich eine Verlängerung des Kriechweges ergäbe; eine solche Ausführung ist jedoch in der Druckglastechnik schwer herstellbar. Dagegen gelangt man durch die Einfügung eines beidseitig überstehenden Isoherstoffrohres 4, das beidseitig von einem Druckglaskörper gleicher Dicke umgeben ist, zu der neuen Druckglasdurchführung, wie sie in Fig. 3 gezeichnet ist. Die Vergrößerung des Kriechweges kann dabei je nach dem überstand des Isolierstoffrohres praktisch jede gewünschte Länge annehmen.Fig. 1 shows a known pressure glass bushing. Here, as in the pressure glass technology common, the glass 1 straight in extension of the metal support ring 2 melted down so that the creepage distance equals the shortest connection between the metal support ring 2 and the implementation 3 is. Fig. 2 shows a raised glass bead, which in itself would result in an extension of the creepage distance; such an execution is but difficult to manufacture using pressure glass technology. On the other hand, you get through the Insertion of a isoherstoffrohr 4 protruding on both sides, which on both sides of is surrounded by a pressure glass body of the same thickness, to the new pressure glass bushing, as shown in FIG. 3. The increase in the creepage distance can vary after the protruding length of the insulating tube practically take on any desired length.
Claims (3)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DES67969A DE1152169B (en) | 1960-04-08 | 1960-04-08 | Pressure glass leadthrough for the metallic housing of electrical capacitors or other electrical components |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DES67969A DE1152169B (en) | 1960-04-08 | 1960-04-08 | Pressure glass leadthrough for the metallic housing of electrical capacitors or other electrical components |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE1152169B true DE1152169B (en) | 1963-08-01 |
Family
ID=7499945
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DES67969A Pending DE1152169B (en) | 1960-04-08 | 1960-04-08 | Pressure glass leadthrough for the metallic housing of electrical capacitors or other electrical components |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE1152169B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3721948A (en) * | 1972-03-02 | 1973-03-20 | Gen Electric | Terminal assembly |
| EP2963321A4 (en) * | 2013-02-27 | 2016-11-16 | Zhejiang Sanhua Co Ltd | Electronic expansion valve and connection assembly therefor |
| DE102022100729A1 (en) | 2022-01-13 | 2023-07-13 | Schott Ag | Electrical bushing and bushing arrangement |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR779506A (en) * | 1933-10-16 | 1935-04-08 | Bosch Robert | Improvement in sealing device and process for electric capacitors, and similar devices |
| FR803292A (en) * | 1935-05-08 | 1936-09-26 | Aeg | Improvements to electronic discharge lamps |
| GB577219A (en) * | 1944-02-11 | 1946-05-09 | Standard Telephones Cables Ltd | Improvements in or relating to insulated electric terminals for leading electric conductors through metal surfaces and containers for electric components |
| FR940261A (en) * | 1947-01-18 | 1948-12-08 | Csf | Improvement in the manufacture of insulating outputs for watertight enclosures by the glass-ceramic-metal association |
-
1960
- 1960-04-08 DE DES67969A patent/DE1152169B/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR779506A (en) * | 1933-10-16 | 1935-04-08 | Bosch Robert | Improvement in sealing device and process for electric capacitors, and similar devices |
| FR803292A (en) * | 1935-05-08 | 1936-09-26 | Aeg | Improvements to electronic discharge lamps |
| GB577219A (en) * | 1944-02-11 | 1946-05-09 | Standard Telephones Cables Ltd | Improvements in or relating to insulated electric terminals for leading electric conductors through metal surfaces and containers for electric components |
| FR940261A (en) * | 1947-01-18 | 1948-12-08 | Csf | Improvement in the manufacture of insulating outputs for watertight enclosures by the glass-ceramic-metal association |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3721948A (en) * | 1972-03-02 | 1973-03-20 | Gen Electric | Terminal assembly |
| EP2963321A4 (en) * | 2013-02-27 | 2016-11-16 | Zhejiang Sanhua Co Ltd | Electronic expansion valve and connection assembly therefor |
| US9689504B2 (en) | 2013-02-27 | 2017-06-27 | Zhejiang Sanhua Climate And Appliance Controls Group Co., Ltd | Electronic expansion valve and connection assembly therefor |
| DE102022100729A1 (en) | 2022-01-13 | 2023-07-13 | Schott Ag | Electrical bushing and bushing arrangement |
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