EP0883144A2 - Spannverband - Google Patents
Spannverband Download PDFInfo
- Publication number
- EP0883144A2 EP0883144A2 EP98109874A EP98109874A EP0883144A2 EP 0883144 A2 EP0883144 A2 EP 0883144A2 EP 98109874 A EP98109874 A EP 98109874A EP 98109874 A EP98109874 A EP 98109874A EP 0883144 A2 EP0883144 A2 EP 0883144A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- choke coil
- inductance
- coil
- inductance part
- receiving
- 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.)
- Withdrawn
Links
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/2876—Cooling
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F30/00—Fixed transformers not covered by group H01F19/00
- H01F30/06—Fixed transformers not covered by group H01F19/00 characterised by the structure
- H01F30/08—Fixed transformers not covered by group H01F19/00 characterised by the structure without magnetic core
Definitions
- the invention relates to a tension bandage for a converter, the at least one power semiconductor, one Liquid heatsink and one inside the tension bandage arranged choke coil, the choke coil at least comprises a one-piece inductance part, which as Air coil is formed.
- Such a tension bandage is known from EP 0 639 840 B1.
- the choke coil is in the known case within the Tension bandage arranged, causing the magnetic field on the adjacent cooling box or the power semiconductor directed is. Due to rapid current changes in the adjacent Eddy currents caused by components. These eddy currents cause high losses and decrease at the same time the inductance necessary to limit the current Air coil.
- a choke coil is known from EP 0 465 700 B1, that in converter circuits as commutation inductance is used and is used for converter valves, such as thyristors and GTO thyristors, the rate of current change to limit.
- the well-known choke coil is as Single-line choke designed and consists of one with cores provided tubular electrical conductor.
- As an electrical A heat pipe, also called a heat pipe, is used on the ladder to which the cores have been pushed.
- the condensation zone of the The heat pipe is provided with a heat-conducting mounting block, which serves as a heat sink.
- Multiple single-line chokes can be combined into a throttle arrangement, wherein the assembly blocks by means of a tension bandage with cooling boxes are thermally connected.
- the evaporation zones at least two single-line chokes are electrical by means of conductive connecting bars electrically conductive with each other connected.
- the single-line chokes or those consisting of several single-line chokes existing throttle arrangement can in particular are used in liquid-cooled converters, where the cooling is not affected by pollution becomes.
- the single-line choke well suited for continuous operation however, has a high current flow in the event of a short circuit.
- DE 26 40 901 C2 is self-supporting Coil for a high power pulse transformer known.
- the coil is milled out of a tube by means of appropriate Slots formed.
- a choke coil without Known core which consists of a winding with a predetermined Number of turns and a bobbin consists.
- a flexible cable for the Winding is provided a flexible cable and as a bobbin serves a carrier plate, the edge areas with holes and provide an opening in their interior are. For each turn, the cable is through a hole and the Breakthrough.
- This choke coil also called a toroid coil is stratified, but only for short-term loads designed.
- this choke coil a relatively large size because of a large conductor length necessary for a sufficiently large inductance is. Due to the large conductor length, the cooling is unfavorable.
- the object of the present invention is a tension bandage to create a high inductance despite the small size having.
- the tension bandage according to claim 1 has at least one power semiconductor, a liquid heatsink and one inside arranged the choke coil, wherein the choke coil has at least one integral inductance part comprises, which is designed as an air coil.
- the inductance part an electrically conductive material. Preferred materials are copper and aluminum.
- the inductance part of the inductor at least one receiving part arranged, the at least one through hole for Includes at least one core rod.
- the one-piece design of the inductance part gives a good coupling of the turns and thus a high inductance with small size. Because of the small size of the inductance part result for the turns the air coil only small conductor lengths and therefore accordingly low ohmic losses. Furthermore, the choke coil of the tension bandage according to the invention due to their low Size also high mechanical stability, so that in the event of short-circuit currents caused by repulsion of the short-circuit forces caused at most only lead to slight deformations of the air coil.
- the inductance part Receiving part arranged for a core rod, it being special is advantageous, the inductance part and the receiving part or the receiving parts - as described in claim 4 - train in one piece.
- the tension bandage according to claim 1 you get a good combination of linear air coil and saturable core rods.
- the short-circuit currents are therefore effective limit, making the busbars mechanically be relieved.
- the choke coil used in the tensioning assembly according to claim 1 is particularly simple and inexpensive due to simple mechanical processing from a piece of metal, preferably can be made from a block of copper.
- the piece of metal which is to form the inductance part, by radial executed slitting and by a centrally attached Through hole made. Receives in this manufacturing process one simply as a one-piece, as Air coil formed inductance part.
- tension bandage serve as a liquid heat sink preferably water cooling cans, the one or rest on both sides of the arrangement. That way the entire tension bandage is effectively cooled.
- a particular advantage of the tension bandage according to claim 1 is that the magnetic field is not on the cooling boxes is directed and thus no eddy currents in the cooling box be induced.
- the tension bandage with the choke coil Increasing the commutation inductance can thus be done with both Metal cooling boxes as well as ceramic cooling boxes will.
- FIG 1 denotes a choke coil, which in the present Embodiment comprises an inductance part 2, which is designed as an air coil.
- an inductance part 2 On the inductance part 2 two receiving parts 3 and 4 are arranged.
- the two recording parts 3 and 4 each serve to receive a core rod 5 (see FIGS. 2 and 3) and do not contribute to the inductance at.
- the air coil is here by radial executed slitting of the inductance part 2 and through a through hole made centrally in the inductance part 2 6 manufactured.
- the two receiving parts 3 and 4 each have a through hole 7 and 8 for receiving the core rods 5.
- the tension bandage shown in FIGS. 2 and 3 includes that in FIG. 1 shown choke coil 1 and a power semiconductor 10 and a liquid heat sink 11 (FIG 2) or one Power semiconductor 10 and a liquid heat sink 12 (FIG 3).
- the liquid heat sink 11 is a metal cooling box.
- the liquid heat sink 12 is a ceramic cooling box educated. When using a metal cooling box 11 is between the choke coil 1 and the metal cooling box 11 an insulating washer 13 made of ceramic is provided.
- connection plate 14 is arranged between the metal cooling box 11 and the power semiconductor 10 or between the ceramic cooling box 12 and the power semiconductor 10 .
- the connecting plate 14 is at potential, is between the Connection plate 14 and the metal cooling box 11 another insulating washer 15 arranged (FIG 2).
- the receiving part is 3 of the choke coil 1 visible.
- the inductance part 2 is covered by the receiving part 3.
- In the receiving part 3 is one Core rod 5 inserted.
- a particular advantage of the arrangement shown in FIGS. 2 and 3 is that the magnetic field is not on the cooling boxes 11 or 12 is directed and thus no eddy currents in the Cooling can be induced.
- the tension assembly with the choke coil 1 to increase the commutation inductance both with metal cooling boxes 11 and with ceramic cooling boxes 12 are executed.
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Coils Of Transformers For General Uses (AREA)
- Power Conversion In General (AREA)
- Coils Or Transformers For Communication (AREA)
Abstract
Description
- FIG 1
- eine Ausführungsform einer Drosselspule für einen erfindungsgemäßen Spannverband,
- FIG 2
- eine erste Ausführungsform eines Spannverbandes mit einer Drosselspule gemäß FIG 1 und einer Metall-Kühldose,
- FIG 3
- eine zweite Ausführungsform eines Spannverbandes mit einer Drosselspule gemäß FIG 1 und einer Keramik-Kühldose.
Claims (4)
- Spannverband für einen Stromrichter, der wenigstens einen Leistungs-Halbleiter (10), einen Flüssigkeitskühlkörper (11, 12) und eine innerhalb des Spannverbandes angeordnete Drosselspule (1) aufweist, wobei die Drosselspule (1) wenigstens ein einstückiges Induktivitätsteil (2) umfaßt, das als Luftspule ausgebildet ist, dadurch gekennzeichnet, daß an dem Induktivitätsteil (2) der Drosselspule (1) wenigstens ein Aufnahmeteil (3, 4) angeordnet ist, das wenigstens eine Durchgangsbohrung (7, 8) zur Aufnahme mindestens einer Kernstange (5) aufweist.
- Spannverband nach Anspruch 1, dadurch gekennzeichnet, daß das Induktivitätsteil (2) der Drosselspule (1) aus Kupfer besteht.
- Spannverband nach Anspruch 1, dadurch gekennzeichnet, daß das Induktivitätsteil (2) der Drosselspule (1) aus Aluminium besteht.
- Spannverband nach Anspruch 1, dadurch gekennzeichnet, daß das Induktivitätsteil (2) der Drosselspule (1) und das Aufnahmeteil bzw. die Aufnahmeteile (3, 4) einstückig ausgebildet sind.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE1997123958 DE19723958C2 (de) | 1997-06-06 | 1997-06-06 | Spannverband |
| DE19723958 | 1997-06-06 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0883144A2 true EP0883144A2 (de) | 1998-12-09 |
| EP0883144A3 EP0883144A3 (de) | 1999-09-29 |
Family
ID=7831720
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP98109874A Withdrawn EP0883144A3 (de) | 1997-06-06 | 1998-05-29 | Spannverband |
Country Status (2)
| Country | Link |
|---|---|
| EP (1) | EP0883144A3 (de) |
| DE (1) | DE19723958C2 (de) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013030029A1 (de) * | 2011-09-02 | 2013-03-07 | Schmidhauser Ag | Drossel und zugehöriges herstellungsverfahren |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102011082046A1 (de) * | 2011-09-02 | 2013-03-07 | Schmidhauser Ag | Transformator und zugehöriges Herstellungsverfahren |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2346832A1 (fr) * | 1975-09-11 | 1977-10-28 | Thomson Csf | Transformateur d'impulsions, plus particulierement pour modulateurs a faible impedance |
| DE2818542C3 (de) * | 1978-04-27 | 1981-06-04 | Vacuumschmelze Gmbh, 6450 Hanau | Hochstromdrosselspule |
| ATE86048T1 (de) * | 1990-07-10 | 1993-03-15 | Siemens Ag | Einleiterdrossel. |
| DE9111720U1 (de) * | 1991-09-19 | 1991-11-14 | Siemens AG, 8000 München | Drosselspule ohne Kern |
| EP0639840B1 (de) * | 1993-07-22 | 1996-12-04 | ABBPATENT GmbH | Spannverband für einen Stromrichter |
-
1997
- 1997-06-06 DE DE1997123958 patent/DE19723958C2/de not_active Expired - Fee Related
-
1998
- 1998-05-29 EP EP98109874A patent/EP0883144A3/de not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013030029A1 (de) * | 2011-09-02 | 2013-03-07 | Schmidhauser Ag | Drossel und zugehöriges herstellungsverfahren |
| CN104040653A (zh) * | 2011-09-02 | 2014-09-10 | 施密徳豪泽股份公司 | 扼流件和相关的制造方法 |
| US10699836B2 (en) | 2011-09-02 | 2020-06-30 | Schmidhauser Ag | Inductor and associated production method |
Also Published As
| Publication number | Publication date |
|---|---|
| DE19723958A1 (de) | 1998-12-10 |
| EP0883144A3 (de) | 1999-09-29 |
| DE19723958C2 (de) | 2000-08-24 |
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| AKX | Designation fees paid |
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| STAA | Information on the status of an ep patent application or granted ep patent |
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| 18D | Application deemed to be withdrawn |
Effective date: 20001201 |