WO2002041340A2 - Gehäuse, gehäuseanordnung, elektrolyt-kondensator mit dem gehäuse und anordnung des elektrolyt-kondensators - Google Patents
Gehäuse, gehäuseanordnung, elektrolyt-kondensator mit dem gehäuse und anordnung des elektrolyt-kondensators Download PDFInfo
- Publication number
- WO2002041340A2 WO2002041340A2 PCT/DE2001/004309 DE0104309W WO0241340A2 WO 2002041340 A2 WO2002041340 A2 WO 2002041340A2 DE 0104309 W DE0104309 W DE 0104309W WO 0241340 A2 WO0241340 A2 WO 0241340A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- cup
- housing
- housing according
- cover element
- electrolytic capacitor
- 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.)
- Ceased
Links
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
- H01G2/08—Cooling arrangements; Heating arrangements; Ventilating arrangements
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G11/00—Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer [EDL] capacitors; Processes for the manufacture thereof or of parts thereof
- H01G11/78—Cases; Housings; Encapsulations; Mountings
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G9/00—Electrolytic capacitors, rectifiers, detectors, switching devices, light-sensitive or temperature-sensitive devices; Processes of their manufacture
- H01G9/004—Details
- H01G9/08—Housing; Encapsulation
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/13—Energy storage using capacitors
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S248/00—Supports
- Y10S248/906—Electrical outlet box support
Definitions
- Housing housing, housing arrangement, electrolytic capacitor with the housing and arrangement of the electrolytic capacitor
- the invention relates to a housing with an electrically conductive cup, which comprises a wall and a bottom, and with an electrically insulating covering which covers the outside of the cup and which has an opening on the bottom which is smaller than the bottom of the cup.
- the invention further relates to a housing arrangement.
- the invention relates to an electrolytic capacitor and an arrangement with the electrolytic capacitor.
- the housing of the type mentioned are usually made of aluminum and are used as a housing for aluminum electrolytic capacitors. Such capacitors are mounted individually or in batteries on circuit boards. Since the aluminum housing of the capacitors is usually supplied with the potential of the anode or the cathode, the housings must be electrically insulated from the outside. In particular, housings whose cup base is fastened flatly on a circuit board must be electrically insulated from the circuit board. The electrical insulation is achieved with the help of the casing.
- housings of the type mentioned at the outset which are insulated on the bottom side in such a way that the bottom of the cup is made, for example, of a plastic disk PVC, is insulated and then wrapped with a shrink tube.
- This shrink tube then represents the electrically insulating sheathing of the cup.
- the heat dissipation of a housing via the cup base can be improved by an arrangement as is known from the document DE 296 17 888 Ul.
- the bottom of the cup is provided with a step which forms a centrally arranged elevation which is smaller than the cup diameter.
- the cup is shrink-wrapped up to this level using a shrink tube and then insulated with a heat-conducting film that covers the entire surface of the floor.
- this cup is an aluminum extrusion, the step base is solid, which is why a large amount of aluminum material is required to manufacture it.
- this cup is also the disadvantage that the solidly designed cup base can only be controlled very poorly by the gas development that occurs during operation of the capacitor and the resulting pressure-related deformation of the cup. There is therefore the danger that the massive cup base bulges outwards and thus large air gaps are created which dissipate the heat poorly and which cannot be compensated for by the heat-conducting film on the floor.
- the known housing has the disadvantage that when the shrink tube is attached, an overlap of the step with the tube must be prevented, which corresponds to a Complex process of retraining required.
- the final dimensions of the shrink tube are namely predetermined by the step base, and it is very difficult to maintain fixed shrink tube dimensions, in particular the sections directed towards the center of the housing.
- the aim of the present invention is therefore to provide a housing which has good electrical insulation and good heat dissipation at the bottom and which is simple to produce.
- a housing according to claim 1 This object is achieved according to the invention by a housing according to claim 1. Further embodiments of the invention, a housing arrangement, an electrolytic capacitor with the housing and an arrangement of the electrolytic capacitor can be found in the further claims.
- the invention provides a housing with an electrically conductive cup which comprises a wall and a base, and with an electrically insulating covering which covers the outside of the cup and which has an opening on the bottom which is smaller than the bottom of the cup, furthermore with a filling element which is highly thermally conductive and which is arranged inside the opening, and with a cover element which is electrically insulating and which covers the base of the cup and which overlaps the casing.
- the housing according to the invention has both good heat dissipation on the bottom side and good electrical insulation at the same time. Since the opening created on the bottom side by the electrically insulating covering is filled with the filling element, a stepped bottom of the cup can be dispensed with. As a result, the housing according to the invention can be particularly advantageously equipped with a cup with a flat bottom, for example, as an extruded part with little material consumption and cheap to produce. An air gap between the bottom of the housing and a circuit board supporting the housing is at least very much reduced, if not completely prevented, by the filling element.
- the filling element can be arranged at any point on the cup base, the design of the electrically insulating covering and in particular the position of the opening can be chosen flexibly. This is particularly advantageous in the case of processes that are difficult to control in order to produce a suitable electrically insulating covering, such as, for example, shrink tubing.
- cover element overlaps the casing of the cup, good electrical insulation of the housing base from a circuit board is ensured.
- the overlap between the cover element and the covering creates a long creepage distance that must be overcome by electrical surface currents.
- the housing is thus particularly suitable for a housing arrangement in which the cup of the housing is pressed with its bottom flat onto a substrate surface and which is also a subject of the invention. Due to the flat contact of the base with the substrate surface, the heat generated in the housing during operation of an electrical component mounted therein, for example, can be transferred well to the substrate surface and thus to the substrate for further dissipation.
- the filling element can be designed to be elastically deformable, which is particularly advantageous if the housing is to be provided for mounting on a substrate surface which provides for the cup base to be pressed onto the substrate surface. Due to the pressure exerted, an elastically deformable filling element may still be present Compensate for air gaps or air gaps caused by deformation of the cup due to increased internal pressure in the cup.
- This effect can be intensified if the cover element is also designed to be elastically deformable.
- the filling element fills the area of the opening to at least 80%. This can effectively improve the heat dissipation of the housing.
- the filling element is in the form of a disk, the thickness of which deviates by less than 10% from the thickness of the casing. It is thereby achieved that the housing is as flat as possible on the bottom side, as a result of which additional air gaps can be reduced.
- the filler element can comprise a metal braid, for example.
- Metal braids have the advantage that they are elastically deformable and that they are good heat conductors.
- the filling element can also be designed to be electrically insulating. Then, in addition to good heat conduction, it also fulfills the additional function of electrical insulation of the cup base.
- a heat-conducting film for example, is suitable as the material for such a filling element. Such heat conducting foils are manufactured, among other things, on a silicone basis and are filled with ceramic. For example, silicone rubber filled with boron nitrite is known by the Bergquist company under the product names Sil-Pad or GAP-Pad. Suitable heat-conducting films are also commercially available under the generic term thermosilicone films. Such heat-conducting films just described have the advantage that they are elastically deformable, good heat-conducting and electrically insulating. A filling element formed from such a film thus combines three functions in one element and is accordingly of great advantage.
- a very good electrical insulation of the housing can be achieved by designing the cover element so that it covers the entire surface of the bottom of the cup. This results in the maximum possible overlap with the covering with a corresponding maximum creepage distance for surface currents. As a result, the electrical insulation of the housing is improved.
- the cover element can also have an overhang with respect to the base of the cup.
- the cover element can be, for example, a film made of polyester or polyvinyl chloride. These materials have the advantage that they are inexpensive to manufacture, that they are elastically deformable and that they are good insulators for the electrical insulation of the housing.
- cover element can also be of good thermal conductivity, which can further improve the heat dissipation of the housing.
- a cover element is considered for this purpose, which is formed from a heat-conducting film already described above.
- a further advantageous embodiment of the invention is achieved if, in order to reduce the parts required for the manufacture of the housing, the filling element and the cover element are integral components of a single insulating part which has good heat-conducting properties and at the same time is electrically insulating.
- the filling element and the cover element are integral components of a single insulating part which has good heat-conducting properties and at the same time is electrically insulating.
- a heat-conducting film for the insulating part which is designed as a step part, the shape of which
- Such a capacitor can be attached particularly advantageously in an arrangement according to the invention on a flat substrate, the cup of the housing being pressed flatly onto the substrate surface with its bottom.
- Capacitors with round windings is most suitable, the maximum contact area is reached. A lying fastening of the cup on the substrate, on the other hand, would only form a very small contact area.
- Figure 1 shows an example of an inventive arrangement of an electrolytic capacitor with the housing according to the invention on a substrate.
- Figure 2 shows an example of a housing according to the invention in schematic cross section, in which the filler element and cover element are integrated in an insulating part and in which the casing is arranged between the bottom of the cup and the cover element.
- FIG. 3 shows a housing according to FIG. 2, but the cover element is arranged between the casing and the bottom of the cup.
- FIG. 4 shows an example of a housing according to the invention in a schematic cross section, the filler element and cover element being separate parts and the cover element being arranged between the casing and the bottom of the cup.
- Figure 1 shows a housing arrangement according to the invention with a housing 1 according to the invention, which comprises a cup 2, in which the round winding 10 of an aluminum electrolytic capacitor is arranged.
- the cup 2 has a wall 3 and a flat bottom 4. It is covered with a covering 5, which is electrically insulating and which can be a shrink tube, for example.
- the covering 5 covers the wall 3 and partially the bottom 4 of the cup 2.
- the casing 5 has an opening 6 on the bottom, which is smaller than the bottom 4 of the cup 2.
- a filling element 7 is arranged, which can be, for example, a metal braid or a heat-conducting film.
- the filling element 7 can be attached to the cup 2 after the covering 5 has been attached.
- a heat-conducting film this can be designed, for example, to be self-adhesive.
- the heat-conducting film can also be glued to the bottom 4 of the cup 2.
- the housing 1 is covered with a cover element 8, which in turn can be a heat-conducting film that is designed to be self-adhesive, or that is glued onto the filler element 7 or onto the casing 5.
- a cover element 8 which in turn can be a heat-conducting film that is designed to be self-adhesive, or that is glued onto the filler element 7 or onto the casing 5.
- the housing 1 is fastened on a substrate 9 by means of a fastening element 11.
- a fastening element 11 Such an attachment would correspond to the mounting of an aluminum electrolytic capacitor on a circuit board.
- the fastening element 11 is only shown schematically and can be realized, for example, by a clamp known per se, which is stretched around the wall 3 of the cup 2 and which is screwed to the substrate 9.
- a tension of the bottom 4 of the cup 2 on the substrate 9 can additionally be achieved, whereby additional air gaps can be reduced and at the same time the thermal contact between housing 1 and substrate 9 is improved.
- the arrangement of the housing 1 on the substrate 9 shown in FIG. 1 offers the maximum possible contact area between the housing 1 and the substrate 9 due to the flat mounting of the bottom 4 of the cup 2 in the case of a cylindrical cup 2 and thus ensures good heat dissipation from the Housing 1 to the substrate 9.
- FIG. 2 shows a housing 1 as shown in FIG. 1, but with the difference that filler element 7 and cover element 8 are integral components of an insulating part 12.
- This insulating part 2 is a heat-conducting film provided with a step.
- the cup 2 can first be provided with the covering 5, for example shrink-wrapped, and then the insulating part 12 can be attached in the opening 6 of the insulating covering 5, for example by gluing.
- the reverse sequence is also conceivable, namely that first the insulating part 12 is fastened to the bottom 4 of the cup 2 as shown in FIG. 3 and then covered by the covering 5, for example in the form of a shrink tube.
- the cover element 8 can also first be attached as a separate part to the bottom 4 of the cup 2.
- the covering 5 can then be attached, for example in the form of a shrink tube, and finally the opening 6 formed by the covering 5 can be filled with the aid of the filling element 7.
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
- Fixed Capacitors And Capacitor Manufacturing Machines (AREA)
Abstract
Description
Claims
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US10/416,601 US6768056B2 (en) | 2000-11-15 | 2001-11-15 | Capacitor housing |
| EP01996871A EP1334497A2 (de) | 2000-11-15 | 2001-11-15 | Gehäuse, gehäuseanordnung, elektrolyt-kondensator mit dem gehäuse und anordnung des elektrolyt-kondensators |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10056474.7 | 2000-11-15 | ||
| DE10056474A DE10056474B4 (de) | 2000-11-15 | 2000-11-15 | Gehäuse, Gehäuseanordnung, Elektrolyt-Kondensator mit dem Gehäuse und Anordnung des Elektrolyt-Kondensators |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| WO2002041340A2 true WO2002041340A2 (de) | 2002-05-23 |
| WO2002041340A3 WO2002041340A3 (de) | 2002-11-28 |
Family
ID=7663313
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/DE2001/004309 Ceased WO2002041340A2 (de) | 2000-11-15 | 2001-11-15 | Gehäuse, gehäuseanordnung, elektrolyt-kondensator mit dem gehäuse und anordnung des elektrolyt-kondensators |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US6768056B2 (de) |
| EP (1) | EP1334497A2 (de) |
| DE (1) | DE10056474B4 (de) |
| WO (1) | WO2002041340A2 (de) |
Families Citing this family (26)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7352558B2 (en) | 2003-07-09 | 2008-04-01 | Maxwell Technologies, Inc. | Dry particle based capacitor and methods of making same |
| US20050266298A1 (en) * | 2003-07-09 | 2005-12-01 | Maxwell Technologies, Inc. | Dry particle based electro-chemical device and methods of making same |
| US7508651B2 (en) | 2003-07-09 | 2009-03-24 | Maxwell Technologies, Inc. | Dry particle based adhesive and dry film and methods of making same |
| US7342770B2 (en) * | 2003-07-09 | 2008-03-11 | Maxwell Technologies, Inc. | Recyclable dry particle based adhesive electrode and methods of making same |
| US7791860B2 (en) | 2003-07-09 | 2010-09-07 | Maxwell Technologies, Inc. | Particle based electrodes and methods of making same |
| US20100014215A1 (en) * | 2004-04-02 | 2010-01-21 | Maxwell Technologies, Inc. | Recyclable dry particle based electrode and methods of making same |
| US7295423B1 (en) * | 2003-07-09 | 2007-11-13 | Maxwell Technologies, Inc. | Dry particle based adhesive electrode and methods of making same |
| US20070122698A1 (en) * | 2004-04-02 | 2007-05-31 | Maxwell Technologies, Inc. | Dry-particle based adhesive and dry film and methods of making same |
| US20050250011A1 (en) * | 2004-04-02 | 2005-11-10 | Maxwell Technologies, Inc. | Particle packaging systems and methods |
| US7920371B2 (en) | 2003-09-12 | 2011-04-05 | Maxwell Technologies, Inc. | Electrical energy storage devices with separator between electrodes and methods for fabricating the devices |
| US7384433B2 (en) | 2004-02-19 | 2008-06-10 | Maxwell Technologies, Inc. | Densification of compressible layers during electrode lamination |
| US7090946B2 (en) | 2004-02-19 | 2006-08-15 | Maxwell Technologies, Inc. | Composite electrode and method for fabricating same |
| US20060246343A1 (en) * | 2004-04-02 | 2006-11-02 | Maxwell Technologies, Inc. | Dry particle packaging systems and methods of making same |
| DE102004035810A1 (de) * | 2004-07-23 | 2006-02-16 | Epcos Ag | Kondensatormodul |
| DE102004054060B3 (de) * | 2004-11-05 | 2006-06-22 | Siemens Ag | Energiespeicher aus Doppelschicht-Kondensatoren und Verwendung eines solchen Energiespeichers bei Schienenfahrzeugen |
| US7492574B2 (en) | 2005-03-14 | 2009-02-17 | Maxwell Technologies, Inc. | Coupling of cell to housing |
| US7440258B2 (en) | 2005-03-14 | 2008-10-21 | Maxwell Technologies, Inc. | Thermal interconnects for coupling energy storage devices |
| DE102005029259A1 (de) * | 2005-03-31 | 2006-10-19 | Epcos Ag | Elektrische Funktionseinheit und Blindstromkompensationsvorrichtung |
| DE102005025832B3 (de) | 2005-06-02 | 2006-11-16 | Aic Europe Elektronische Bauteile Gmbh | Befestigung eines Kondensators |
| DE102006012402A1 (de) * | 2006-03-17 | 2007-05-31 | Siemens Ag | Kondensatorbefestigung |
| DE102006012406B4 (de) * | 2006-03-17 | 2010-09-02 | Siemens Ag | Vorrichtung zur Befestigung eines Gleichspannungs-Kondensators auf einer Montageplatte |
| DE102006048686A1 (de) * | 2006-10-14 | 2008-04-24 | Huber, Robert | Vergossener niederinduktiver Hochstromkondensator mit verbesserten Fertigungseigenschaften |
| US20080201925A1 (en) | 2007-02-28 | 2008-08-28 | Maxwell Technologies, Inc. | Ultracapacitor electrode with controlled sulfur content |
| US20080204973A1 (en) * | 2007-02-28 | 2008-08-28 | Maxwell Technologies, Inc. | Ultracapacitor electrode with controlled iron content |
| JP6867432B2 (ja) * | 2019-05-09 | 2021-04-28 | 三菱電機株式会社 | 電力変換装置 |
| DE102023118568A1 (de) * | 2023-07-13 | 2025-01-16 | Schaeffler Technologies AG & Co. KG | Elektrische Vorrichtung, Verfahren zum Herstellen derselben und Fahrzeug |
Family Cites Families (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3916899C2 (de) * | 1989-05-24 | 2003-04-03 | Bosch Gmbh Robert | Gehäuse zur Aufnahme einer elektronischen Schaltung |
| DE4202824C2 (de) * | 1992-01-31 | 1995-01-05 | Fraunhofer Ges Forschung | Chip-Bauelement und Verfahren zu dessen Herstellung |
| US5456377A (en) * | 1992-04-13 | 1995-10-10 | Hubbell Incorporated | Weatherproof electrical enclosure |
| US5672074A (en) * | 1995-06-22 | 1997-09-30 | Panduit Corp. | Connector mounting receptacles |
| DE19613765A1 (de) * | 1996-04-04 | 1997-10-09 | Rudolf Klaschka | Kondensatorbechergehäuse |
| DE29617888U1 (de) * | 1996-10-15 | 1997-04-24 | F & T Kondensatoren GmbH, 25813 Husum | Form von Becher-Elektrolytkondensatoren |
| US6218613B1 (en) * | 1998-08-19 | 2001-04-17 | Leviton Manufacturing Co., Inc. | Divided standard device inch box |
| FR2786618B1 (fr) * | 1998-11-27 | 2001-03-16 | Legrand Sa | Support d'appareillage, notamment pour appareillage electrique, et boitier comportant un tel support d'appareillage |
| US6708834B2 (en) * | 2000-03-31 | 2004-03-23 | Micro Motion, Inc. | Housing for intrinsically-safe electronics |
| DE20010318U1 (de) * | 2000-06-08 | 2000-09-21 | Günther Engineering GmbH, 09456 Annaberg-Buchholz | Wärmesenke für elektronische Bauelemente |
| US6543940B2 (en) * | 2001-04-05 | 2003-04-08 | Max Chu | Fiber converter faceplate outlet |
| JP3831213B2 (ja) * | 2001-06-12 | 2006-10-11 | 矢崎総業株式会社 | 電気接続箱の二重壁構造 |
| US6548755B2 (en) * | 2001-08-21 | 2003-04-15 | Formosa Electronic Industries Inc. | Power supply adapter with foldable plug |
-
2000
- 2000-11-15 DE DE10056474A patent/DE10056474B4/de not_active Expired - Lifetime
-
2001
- 2001-11-15 US US10/416,601 patent/US6768056B2/en not_active Expired - Fee Related
- 2001-11-15 EP EP01996871A patent/EP1334497A2/de not_active Withdrawn
- 2001-11-15 WO PCT/DE2001/004309 patent/WO2002041340A2/de not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| US6768056B2 (en) | 2004-07-27 |
| WO2002041340A3 (de) | 2002-11-28 |
| EP1334497A2 (de) | 2003-08-13 |
| DE10056474A1 (de) | 2002-05-29 |
| DE10056474B4 (de) | 2004-10-28 |
| US20040080898A1 (en) | 2004-04-29 |
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