CA2329327A1 - Aluminum electrolyte capacitor - Google Patents
Aluminum electrolyte capacitor Download PDFInfo
- Publication number
- CA2329327A1 CA2329327A1 CA002329327A CA2329327A CA2329327A1 CA 2329327 A1 CA2329327 A1 CA 2329327A1 CA 002329327 A CA002329327 A CA 002329327A CA 2329327 A CA2329327 A CA 2329327A CA 2329327 A1 CA2329327 A1 CA 2329327A1
- Authority
- CA
- Canada
- Prior art keywords
- housing
- capacitor
- electrolyte capacitor
- aluminum
- aluminum electrolyte
- 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.)
- Abandoned
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES OR LIGHT-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
Abstract
The invention relates to an aluminum electrolytic capacitor, especially for use in capacitor banks, which is mounted in a housing (1) provided with cooling ribs (2), whereby the housing (1) is produced as an aluminum cast part.
Description
Oct.l6. 2000 4:27PM CA 02329327 2000-io-i9 Ido.0225 P. 2 '.'aR. '9 8 P 15 4 6 Alum3tlum Electrolyte Capacitor The invention relates tv an aluminum olovtrolyte capacitor, particularly for application in rapar_iter batteries, which is installed in a housing that is provided with cooling ribs.
DE 92 03 739 U1 teaches a housing for electrical capacitors which consists of plastic, with axial longitudinal ribs disposed at the housing exterior to improve the heat dissipation.
In l.he operation of aluminum electrolyte capacitors with superposed a.c. voltage, a eubdtantial power loan occurs in the form of h~at by teasers of the relatively high equivalent series resistance of this component.. Thi A m~»xY ha dissipated via the housing, whereby the housings of aluminum elecs,roly>re capaci>rori~ have hitherto consisted of cyliiW~lc;al aluminum cups that are produced as impact-extrur~ion parts with smooth wall~. Shrink tubes or plastic cups are typically plea~d on the aluminum cup as electrical inpulation, with the result that thp hRat: dissipation ie improved compared to blank housings. To further improve the heaL~-die~sipation, the capacitor is mounted U!1 C:UU1111cJ. bWGLa r~r cooling bodies and/or is air-blasted. This results in additional outlay for cooling bodies and fixing material. When several electrolyte capacitors are mounted together in series or parallel circuits (what are known as capacitor batteries), substantial coezs are again incurred for the =wyuirCd c;xiar~r~i~.
Heaauee of the high additional costs, the advantage of a hie~her loading aapaeity based on forced cooling using cooling bodies has usually noz been exploited. Rather, the circuit Received Oct-16-00 Od:l3pm From- To-Smart 8 Biaaar Page 002 Oct.l6. 2000 4~27PM CA 02329327 2000-io-i9 Pda.0225 P. 0 i C;e~ign ha~ usually been ba:ed on a presumption of natural tovZimg - ~vi~ in any cdr~e, air cooling.
It i~ the object of the pr~~ent invention to further develop a capacitor of the type mentioned above such that heat can be r.7ir~pipat.ed effectively given low production and assembly cost .
This object is inventively achieved in that the housing is conratructcd as an aluminum casting.
This achiRVpe rnP ahvantagp that, on one hand, housings of this type can be produced cost-effectively and are particularly well-suited to the wiring in capacitr~r bal,l.ot~iar~.
it being pos~ible to realize not only the cooling ribs but also the gr~ater wall thickneeees that are n~ceaeary for reducing heat resistance iz~ the radial directioa.
seeides the aforementioned plastic housings triat have cool~.ng ribs, which are less euite~ble for~electrolyte capacitors, metallic houeitzga having reeling ribo arc also lcnowa, though these consist of thin ah~et with cooling ribs that are shrunken on or welded in place (DE-A-A6509). T'h9~ ~ppa.rate processing step of shrinking or welding cooling ribs raises the coats of mamu,Caci:uring such housings substantially, and containers of thin sheet also comprise a higher heat resistance in the radial direction than this iz~ the inventive capacitor having an aluminum casting. jpiE~
Advantageous developments of the subject matter of the invention are laid out iu the su?st;lr~~.ma, The invention will now be detailed with reference to exemplifying embodiments.
DE 92 03 739 U1 teaches a housing for electrical capacitors which consists of plastic, with axial longitudinal ribs disposed at the housing exterior to improve the heat dissipation.
In l.he operation of aluminum electrolyte capacitors with superposed a.c. voltage, a eubdtantial power loan occurs in the form of h~at by teasers of the relatively high equivalent series resistance of this component.. Thi A m~»xY ha dissipated via the housing, whereby the housings of aluminum elecs,roly>re capaci>rori~ have hitherto consisted of cyliiW~lc;al aluminum cups that are produced as impact-extrur~ion parts with smooth wall~. Shrink tubes or plastic cups are typically plea~d on the aluminum cup as electrical inpulation, with the result that thp hRat: dissipation ie improved compared to blank housings. To further improve the heaL~-die~sipation, the capacitor is mounted U!1 C:UU1111cJ. bWGLa r~r cooling bodies and/or is air-blasted. This results in additional outlay for cooling bodies and fixing material. When several electrolyte capacitors are mounted together in series or parallel circuits (what are known as capacitor batteries), substantial coezs are again incurred for the =wyuirCd c;xiar~r~i~.
Heaauee of the high additional costs, the advantage of a hie~her loading aapaeity based on forced cooling using cooling bodies has usually noz been exploited. Rather, the circuit Received Oct-16-00 Od:l3pm From- To-Smart 8 Biaaar Page 002 Oct.l6. 2000 4~27PM CA 02329327 2000-io-i9 Pda.0225 P. 0 i C;e~ign ha~ usually been ba:ed on a presumption of natural tovZimg - ~vi~ in any cdr~e, air cooling.
It i~ the object of the pr~~ent invention to further develop a capacitor of the type mentioned above such that heat can be r.7ir~pipat.ed effectively given low production and assembly cost .
This object is inventively achieved in that the housing is conratructcd as an aluminum casting.
This achiRVpe rnP ahvantagp that, on one hand, housings of this type can be produced cost-effectively and are particularly well-suited to the wiring in capacitr~r bal,l.ot~iar~.
it being pos~ible to realize not only the cooling ribs but also the gr~ater wall thickneeees that are n~ceaeary for reducing heat resistance iz~ the radial directioa.
seeides the aforementioned plastic housings triat have cool~.ng ribs, which are less euite~ble for~electrolyte capacitors, metallic houeitzga having reeling ribo arc also lcnowa, though these consist of thin ah~et with cooling ribs that are shrunken on or welded in place (DE-A-A6509). T'h9~ ~ppa.rate processing step of shrinking or welding cooling ribs raises the coats of mamu,Caci:uring such housings substantially, and containers of thin sheet also comprise a higher heat resistance in the radial direction than this iz~ the inventive capacitor having an aluminum casting. jpiE~
Advantageous developments of the subject matter of the invention are laid out iu the su?st;lr~~.ma, The invention will now be detailed with reference to exemplifying embodiments.
Rocofvod Oct-16-00 04:18pm From- To-Smort i BIiQOr POQO 008 Oct.l6. 2000 4:27FM CA 02329327 2000-io-i9 ~ No.O225 P. 4 Shown are:
Fig. l: a capacitor hou~ing consisting of an aluminum casting;
Ficd. 2: an embodiment having a multiple housing; and Fig. 3 and Fig. 4: circ:uiLe3 with a. »LripliuC.
Fig. 1 shows a housing 1 for an aluminum electrolyte capacitor which consists of an aluminum casting having cooling ribo 2 formed thereon. At the tloor of the housing 1 there ie a spindle 3 that serves to center the capacitor element.
Radially arranged ribs 4 are also disposed at the floor of the housing 1, which cervc fer fixing the capacitor clcmcnt is a vibrastabl~ manner. Th~ heat flow out of the capacitor ~1~m~nt ocrur~e primarl 1y vi a t:hp prat rub i ng aathodp a.nd. the cup , bottom, and accordingly the cooling ribs only achieve their full effect given low heat resistance along the cup wall. The housing 1 is constructed flat at two opposite sides, which creates the possibility of arranging a plurality of capacit:or~
housineds next to cne anothQr as reprapented in Fig. 2 po ap to conaervp ~par.P _ Ac:c;vraing t~ Fig. Z, the individual housings are loeaLed within as outer housing 7, thereby guaranteeing s particularly simple assembly of the multiple housing 7. The individual haur~ings 1 are arranged With their flat sides 5,6 against one another.
Fig. 3 shown the parallel Circuit of capacitor elements e, 9, 10,..., which are installed in a housing as represented in Fig.
2. The connection is accomplis~hod by a :tripling 11, which is constructed ae a simple "aandwi.n'h~~ . An i nsul a.tion 13 ig located between the two electrodes 12 arid 14. An additional -3~
_, .. Received .Oct-16-D0 Od:l3pm From- To-Smart ~ Bi~aar PaQA ~Od Oct.l6. 2000 4~27PM CA 02329327 2000-io-i9 No.0226 P. 6 insulation 15 is disposed beneath ttie electrode lg. The electxodca 12, 14 arc connocted to the anode terminal lugs 1G
and the cathode terminal lugt3 17, rc~pcctivcly.
Rig. 4 t~how~ a further embodiment of a stripling 11 having a Coaxial structure. Fig. 4 includes the same reference characters as Fig. 3.
It ie also pos~ible to lead the negative pole via the houcting 1 - i.e. via the terminating ahe~t - and to connect th~
positive pole externally.
It is also possible to insert am izisulxLlnr~ c; up ~t~aae yr plaptic (dccp draw part) into the metal housing 1 or to coat the inner wall with an insulating material (e. g. rubber coating)_ Il, 1r~ alr~o pvsr~ible to perform the connection of the coil internally via aluminum metal strips or externally (e.g. via copper ~heete).
Tt is also possible to arrange the cooling ribs not only axially but radially anB/or at the bozzom o~ the cup as well.
Fig. l: a capacitor hou~ing consisting of an aluminum casting;
Ficd. 2: an embodiment having a multiple housing; and Fig. 3 and Fig. 4: circ:uiLe3 with a. »LripliuC.
Fig. 1 shows a housing 1 for an aluminum electrolyte capacitor which consists of an aluminum casting having cooling ribo 2 formed thereon. At the tloor of the housing 1 there ie a spindle 3 that serves to center the capacitor element.
Radially arranged ribs 4 are also disposed at the floor of the housing 1, which cervc fer fixing the capacitor clcmcnt is a vibrastabl~ manner. Th~ heat flow out of the capacitor ~1~m~nt ocrur~e primarl 1y vi a t:hp prat rub i ng aathodp a.nd. the cup , bottom, and accordingly the cooling ribs only achieve their full effect given low heat resistance along the cup wall. The housing 1 is constructed flat at two opposite sides, which creates the possibility of arranging a plurality of capacit:or~
housineds next to cne anothQr as reprapented in Fig. 2 po ap to conaervp ~par.P _ Ac:c;vraing t~ Fig. Z, the individual housings are loeaLed within as outer housing 7, thereby guaranteeing s particularly simple assembly of the multiple housing 7. The individual haur~ings 1 are arranged With their flat sides 5,6 against one another.
Fig. 3 shown the parallel Circuit of capacitor elements e, 9, 10,..., which are installed in a housing as represented in Fig.
2. The connection is accomplis~hod by a :tripling 11, which is constructed ae a simple "aandwi.n'h~~ . An i nsul a.tion 13 ig located between the two electrodes 12 arid 14. An additional -3~
_, .. Received .Oct-16-D0 Od:l3pm From- To-Smart ~ Bi~aar PaQA ~Od Oct.l6. 2000 4~27PM CA 02329327 2000-io-i9 No.0226 P. 6 insulation 15 is disposed beneath ttie electrode lg. The electxodca 12, 14 arc connocted to the anode terminal lugs 1G
and the cathode terminal lugt3 17, rc~pcctivcly.
Rig. 4 t~how~ a further embodiment of a stripling 11 having a Coaxial structure. Fig. 4 includes the same reference characters as Fig. 3.
It ie also pos~ible to lead the negative pole via the houcting 1 - i.e. via the terminating ahe~t - and to connect th~
positive pole externally.
It is also possible to insert am izisulxLlnr~ c; up ~t~aae yr plaptic (dccp draw part) into the metal housing 1 or to coat the inner wall with an insulating material (e. g. rubber coating)_ Il, 1r~ alr~o pvsr~ible to perform the connection of the coil internally via aluminum metal strips or externally (e.g. via copper ~heete).
Tt is also possible to arrange the cooling ribs not only axially but radially anB/or at the bozzom o~ the cup as well.
_ Received _ Oct-16-00__Od:l3pm .From- To-Smart & RIQQar Paso 005
Claims (7)
1. Aluminum electrolyte capacitor, in particular for application in capacitor batteries, which is installed in a housing (1) that is provided with cooling ribs (2), characterized in that the housing (1) is constructed as an aluminum casting.
2. Aluminum electrolyte capacitor as claimed in claim 1, characterized in that the cooling ribs (2) are constructed in a flat shape at two opposite sides (5, 6) of the housing.
3. Aluminum electrolyte capacitor as claimed in claim 1 or 2, characterized in that the housing (7) is constructed to accept a plurality of capacitors (8, 9, 10,.,.).
4. Aluminum electrolyte capacitor as claimed in claim 3, characterized in that the housing (1) comprises an insulating coating on its interior side.
5. Aluminum electrolyte capacitor as claimed is claim 3, characterized in that insulating cups for accepting the capacitors are disposed in the housing (1).
6. Aluminum electrolyte capacitor as claimed in one or the claims 1 to 5, characterized in that the connection or a plurality of capacitors (8, 9, 10,...) is accomplished in a capacitor battery with the aid of striplines (11) that are fashioned in the shape a sandwich.
7. Aluminum electrolyte capacitor as claimed in claim 6, characterized in that the striplines (11) are constructed in coaxial fashion.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19817493A DE19817493C1 (en) | 1998-04-20 | 1998-04-20 | Aluminium electrolyte capacitor for capacitor battery |
| DE19817493.4 | 1998-04-20 | ||
| PCT/DE1999/001025 WO1999054893A1 (en) | 1998-04-20 | 1999-04-08 | Aluminum electrolytic capacitor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2329327A1 true CA2329327A1 (en) | 1999-10-28 |
Family
ID=7865136
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002329327A Abandoned CA2329327A1 (en) | 1998-04-20 | 1999-04-08 | Aluminum electrolyte capacitor |
Country Status (8)
| Country | Link |
|---|---|
| EP (1) | EP1080478B1 (en) |
| JP (1) | JP2002512442A (en) |
| AT (1) | ATE210883T1 (en) |
| CA (1) | CA2329327A1 (en) |
| DE (2) | DE19817493C1 (en) |
| DK (1) | DK1080478T3 (en) |
| ES (1) | ES2169952T3 (en) |
| WO (1) | WO1999054893A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9058932B2 (en) | 2010-11-05 | 2015-06-16 | Frank Ebersberger | Capacitor system and method for producing a capacitor system |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10001120C2 (en) * | 2000-01-13 | 2003-07-24 | Epcos Ag | Low induction electrolytic capacitor |
| DE10117799A1 (en) * | 2001-04-10 | 2002-11-07 | Bosch Gmbh Robert | Electrolytic capacitor, has wound foil separated by isolating layer and with connections |
| US20070053156A1 (en) * | 2003-10-31 | 2007-03-08 | Lothar Regenfus | Housing cup for an electronic component with integrated cooling body |
| DE102004045182B4 (en) * | 2004-09-17 | 2008-10-16 | Epcos Ag | capacitor module |
| DE102011012631B4 (en) * | 2011-02-15 | 2020-11-12 | Sew-Eurodrive Gmbh & Co Kg | Energy storage |
| DE102011007315A1 (en) * | 2011-04-13 | 2012-10-18 | Robert Bosch Gmbh | Storage unit for storing electrical energy with a cooling element |
| DE102011081283A1 (en) * | 2011-08-19 | 2013-02-21 | Robert Bosch Gmbh | Capacitor with a heat sink |
| EP2952377B1 (en) * | 2014-06-03 | 2017-10-04 | Visedo Oy | A capacitor module for a mobile working machine |
| KR101811988B1 (en) | 2017-08-21 | 2017-12-22 | 대동콘덴서공업(주) | High frequency and current capacitor |
| DE102017223631A1 (en) * | 2017-12-21 | 2019-06-27 | Robert Bosch Gmbh | Inverter for an electric machine |
| DE102021123731A1 (en) | 2021-09-14 | 2023-03-16 | TDK Europe GmbH | Electrical component with improved cooling and corresponding module |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE869509C (en) * | 1945-05-05 | 1953-03-05 | Asea Ab | Container for electrical capacitors |
| US4447730A (en) * | 1980-07-11 | 1984-05-08 | Transnuklear Gmbh | Transportation and/or storage containers for radioactive materials |
| DE9203739U1 (en) * | 1992-03-19 | 1992-05-27 | Facon S.P.A. Fabbrica Condensatori Elettrici, Varese, It | |
| DE9213103U1 (en) * | 1992-09-29 | 1992-11-12 | Siemens Matsushita Components Gmbh & Co. Kg, 8000 Muenchen, De |
-
1998
- 1998-04-20 DE DE19817493A patent/DE19817493C1/en not_active Expired - Fee Related
-
1999
- 1999-04-08 AT AT99924774T patent/ATE210883T1/en not_active IP Right Cessation
- 1999-04-08 EP EP99924774A patent/EP1080478B1/en not_active Expired - Lifetime
- 1999-04-08 DE DE59900550T patent/DE59900550D1/en not_active Expired - Fee Related
- 1999-04-08 CA CA002329327A patent/CA2329327A1/en not_active Abandoned
- 1999-04-08 WO PCT/DE1999/001025 patent/WO1999054893A1/en active IP Right Grant
- 1999-04-08 JP JP2000545159A patent/JP2002512442A/en not_active Withdrawn
- 1999-04-08 DK DK99924774T patent/DK1080478T3/en active
- 1999-04-08 ES ES99924774T patent/ES2169952T3/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9058932B2 (en) | 2010-11-05 | 2015-06-16 | Frank Ebersberger | Capacitor system and method for producing a capacitor system |
Also Published As
| Publication number | Publication date |
|---|---|
| ATE210883T1 (en) | 2001-12-15 |
| WO1999054893A1 (en) | 1999-10-28 |
| ES2169952T3 (en) | 2002-07-16 |
| JP2002512442A (en) | 2002-04-23 |
| DK1080478T3 (en) | 2002-04-08 |
| EP1080478A1 (en) | 2001-03-07 |
| EP1080478B1 (en) | 2001-12-12 |
| DE59900550D1 (en) | 2002-01-24 |
| DE19817493C1 (en) | 1999-08-26 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FZDE | Discontinued |