EP0066902A1 - Liquid-cooled power resistor and its application - Google Patents

Liquid-cooled power resistor and its application Download PDF

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Publication number
EP0066902A1
EP0066902A1 EP82200502A EP82200502A EP0066902A1 EP 0066902 A1 EP0066902 A1 EP 0066902A1 EP 82200502 A EP82200502 A EP 82200502A EP 82200502 A EP82200502 A EP 82200502A EP 0066902 A1 EP0066902 A1 EP 0066902A1
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EP
European Patent Office
Prior art keywords
resistance conductor
power resistor
housing
resistor according
resistance
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Granted
Application number
EP82200502A
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German (de)
French (fr)
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EP0066902B1 (en
Inventor
Konrad Beriger
Ladislav Kucera
Paul Schneider
Günther Spittaler
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BBC Brown Boveri AG Switzerland
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BBC Brown Boveri AG Switzerland
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Publication of EP0066902A1 publication Critical patent/EP0066902A1/en
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01C—RESISTORS
    • H01C1/00—Details
    • H01C1/08—Cooling, heating or ventilating arrangements
    • H01C1/082—Cooling, heating or ventilating arrangements using forced fluid flow
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01C—RESISTORS
    • H01C3/00—Non-adjustable metal resistors made of wire or ribbon, e.g. coiled, woven or formed as grids
    • H01C3/02—Non-adjustable metal resistors made of wire or ribbon, e.g. coiled, woven or formed as grids arranged or constructed for reducing self-induction, capacitance or variation with frequency
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01C—RESISTORS
    • H01C3/00—Non-adjustable metal resistors made of wire or ribbon, e.g. coiled, woven or formed as grids
    • H01C3/10—Non-adjustable metal resistors made of wire or ribbon, e.g. coiled, woven or formed as grids the resistive element having zig-zag or sinusoidal configuration

Definitions

  • the invention relates to a liquid-cooled power resistor with at least one resistance conductor arranged in the housing and to a use of the liquid-cooled power resistor.
  • Liquid-cooled resistors are known per se.
  • a resistor of the type mentioned is undated, described and shown in the prospectus "Liquid-cooled resistor type HS600" from the company CGS, England.
  • the resistance conductor consists of a copper-nickel or chrome-nickel alloy and is wound on a ceramic core.
  • the roller-shaped ceramic core is mounted in an aluminum housing in which a stainless steel cooling coil is cast. This resistance therefore has an indirect heat dissipation. In order to keep the natural time constant as low as possible, the number of windings of the resistance wire is kept to a minimum.
  • the invention seeks to remedy this.
  • the invention as characterized in the claims, solves the problem of creating a liquid-cooled power resistor which has good heat dissipation and thus a high load capacity and which is structurally simple.
  • the arrangement of the resistance conductor should be low in inductance.
  • the advantages achieved by the invention are essentially to be seen in the fact that the direct arrangement of the resistance conductor in the cooling liquid, preferably in the deionized water, ensures effective and uniform heat dissipation, the heat capacity being relatively high. Because the resistance conductor is no longer rigid e.g. must attach to a ceramic body, the choice of material is also much easier. In the solution according to the invention, large differences in the thermal expansion coefficients of the resistance conductor and its holders cannot cause mechanical damage during the heating. Another advantage is the fact that e.g. can achieve a low-inductance solution through serpentine or meandering arrangement of the resistance conductor.
  • a housing 1 consists of a cylinder 2, which is provided with two flanges 2 ', and an upper cover plate 3 and a lower cover plate 4.
  • the flanges 2' are of square shape, so that their corners form the cylinder 2 protrude and serve for connection to the cover plates 3, 4 by means of fastening screws 5.
  • the closed housing 1 is provided with two connections 6 for deionized water, an inlet bore 7 being provided in the lower connection 6 and an outlet bore 8 being provided in the upper connection 6.
  • the arrows show the direction of flow.
  • four screens 9 are attached. They alternately leave a flow cross-section 10 on the left and right and serve to deflect the deionized water. They are provided with holes 15, which are shown in Fig. 2.
  • a resistance conductor 11 is guided through these bores 15 in a serpentine manner, so that the screens 9 are simultaneously used as holders for the resistance conductor 11.
  • An upper connecting pin 12 is inserted in the upper cover plate 3 and a lower connecting pin 13 is inserted in the lower cover plate 4. Both pins 12, 13 are fixed with nuts 14 and their outer parts form the electrical connections.
  • the inner part of the upper pin 12 is with the upper end 16 of the resistance conductor 11 and the inner part of the lower connecting pin 13 is electrically and mechanically connected to the lower end 17 of the resistance conductor 11.
  • the ends 16, 17 of the resistance conductor 11 are pressed into the inner parts of the connection pins 12, 13.
  • Another type of connection known per se can of course also be used, for example soldering, welding or screwing.
  • the cylinder 2 with the flanges 2 ' is made of aluminum.
  • the cover plates 3, 4 are made of polypropylene.
  • the connection pins 12 and 13 are therefore electrically insulated from one another.
  • the resistance conductor 11 consists of a chromium-nickel alloy, the connecting pins 12, 13 made of copper, the screens 9 made of polypropylene.
  • the deionized water used as coolant runs through the power resistor and is continuously treated in bypass operation. Other cooling liquids known per se can also be used, for example oil. Of course, other metals, alloys and plastics can also be used for the construction of the power resistor.
  • the cover plates 3, 4 should be made of an electrically insulating material. If the housing 1 is made entirely of metal, the connecting pins 12, 13 must be inserted into the cover plates 3, 4 in an insulating manner.
  • FIG. 2 shows the section II-II from FIG. 1.
  • the loops of the resistance conductor 11 prevent any mechanical damage during thermal expansion.
  • the holes 15 in the diaphragms 9 are larger than the cross section of the resistance conductor 11. This solution has several advantages.
  • the assembly of the resistance conductor 11 is simpler, the resistance conductor 11 can slide in the bores 15 during the thermal expansion and is also well-cooled in these places, because small parts of the cooling liquid can flow through these bores 15.
  • FIG. 3 shows the section III-III from FIG. 2.
  • the guide of the resistance conductor 11 is shown perpendicular to the guide, as shown in FIG. 1.
  • the resistance conductor 11 is drawn in one plane in FIGS. 1 and 3. The spatial distribution can be seen from FIG. 2.
  • the top cover plate 3 of another exemplary embodiment of the invention is illustrated.
  • This construction corresponds essentially to that according to FIGS. 1 to 3 with the difference that in addition to the upper connecting pin 12 already described, a second upper connecting pin 12 'is inserted in the upper cover plate 3.
  • Both ends of the resistance conductor 11 are connected to these connection pins 12, 12 ′, the center of the resistance conductor 11 being connected to the lower connection pin 13, which has also already been described and is not visible in FIG. 4.
  • two parts of the resistance conductor 11 are present in the housing 1, which one either in series between the connecting pins 12 and 12 'or in parallel between the lower connecting pin 13 and the short can switch closed pins 12 and 12 '.
  • This variant gives you the option of choosing between two different resistance values.
  • the liquid-cooled power resistor according to the invention is particularly suitable for connecting power thyristors in converter systems.

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  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Details Of Resistors (AREA)

Abstract

Ein flüssigkeitsgekühlter Leistungswiderstand enthält wenigstens einen Widerstandsleiter (11), der in einem geschlossenen Gehäuse (1) direkt in als Kühlflüssigkeit verwendetem entionisiertem Wasser angeordnet ist. Der Widerstandsleiter (1) ist zweckmässig in Blenden (9) befestigt, die nicht nur als Halterungen des Widerstandsleiters (11) dienen, sondern auch die Kühlflüssigkeit umlenken. Der Widerstandsleiter (11) ist normalerweise an zwei Anschlussstifte (12, 13) angeschlossen. Man kann auch einen dritten Anschlussstift verwenden, der die Mitte des Widerstandsleiters anzapft, so dass man zwei ohmsche Werte des Leistungswiderstandes zur Verfügung hat. Der Leistungswiderstand sichert eine wirksame und gleichmässige Wärmeabfuhr und weist eine hohe Wärmekapazität auf. Die Anordnung ist induktivitätsarm. Der Leistungswiderstand ist insbesondere zur Beschaltung von Thyristoren in Stromrichteranlagen geeignet.A liquid-cooled power resistor contains at least one resistance conductor (11), which is arranged in a closed housing (1) directly in deionized water used as cooling liquid. The resistance conductor (1) is expediently fastened in panels (9) which not only serve as holders for the resistance conductor (11), but also deflect the cooling liquid. The resistance conductor (11) is normally connected to two connection pins (12, 13). You can also use a third pin that taps the center of the resistance wire, so you have two ohmic values of power resistance available. The power resistor ensures effective and uniform heat dissipation and has a high heat capacity. The arrangement is low in inductance. The power resistor is particularly suitable for connecting thyristors in converter systems.

Description

1 Die Erfindung bezieht sich auf einen flüssgkeitsgekühlten Leistungswiderstand mit wenigstens einem im Gehäuse angeordneten Widerstandsleiter und auf eine Verwendung des flüssigkeitsgekühlten Leistungswiderstandes. 1 The invention relates to a liquid-cooled power resistor with at least one resistance conductor arranged in the housing and to a use of the liquid-cooled power resistor.

Flüssigkeitsgekühlte Widerstände sind an sich bekannt. Ein Widerstand der eingangs genannten Art ist im Prospekt "Flüssigkeitsgekühlter Widerstand Typ HS600" der Firma CGS, England, undatiert, beschrieben und dargestellt. Der Widerstandsleiter besteht aus einer Kupfer-Nickel- oder Chrom-Nickel-Legierung und ist auf einem Keramikkern gewickelt. Der walzenförmige Keramikkern ist in einem Aluminiumgehäuse gelagert, in welchen eine Edelstahlkühlschlange eingegossen ist. Dieser Widerstand weist also eine indirekte Wärmeabfuhr auf. Um die Eigenzeitkonstante so gering wie möglich zu halten, wird die Anzahl der Wicklungen des Widerstandsdrahtes auf ein Minimum beschränkt.Liquid-cooled resistors are known per se. A resistor of the type mentioned is undated, described and shown in the prospectus "Liquid-cooled resistor type HS600" from the company CGS, England. The resistance conductor consists of a copper-nickel or chrome-nickel alloy and is wound on a ceramic core. The roller-shaped ceramic core is mounted in an aluminum housing in which a stainless steel cooling coil is cast. This resistance therefore has an indirect heat dissipation. In order to keep the natural time constant as low as possible, the number of windings of the resistance wire is kept to a minimum.

Hier will die Erfindung Abhilfe schaffen. Die Erfindung, wie sie in den Ansprüchen gekennzeichnet ist, löst die Aufgabe, einen flüssigkeitsgekühlten Leistungswiderstand zu schaffen, der eine gute Wärmeabfuhr und somit eine hohe Belastbarkeit aufweist und der konstruktiv einfach ist. Die Anordnung des Widerstandsleiters soll induktivitätsarm sein.The invention seeks to remedy this. The invention, as characterized in the claims, solves the problem of creating a liquid-cooled power resistor which has good heat dissipation and thus a high load capacity and which is structurally simple. The arrangement of the resistance conductor should be low in inductance.

Die durch die Erfindung erreichten Vorteile sind im wesentlichen darin zu sehen, dass die direkte Anordnung des Widerstandsleiters in der Kühlflüssigkeit, vorzugsweise im entionisierten Wasser, eine wirksame und gleichmässige Wärmeabfuhr sichert, wobei die Wärmekapazität verhältnismässig hoch ist. Weil man den Widerstandsleiter nicht mehr starr z.B. auf einen Keramikkörper befestigen muss, ist auch die Materialwahl wesentlich erleichtert. Bei der erfindungsgemässen Lösung können auch grosse Unterschiede der Wärmedehnungskoeffizienten des Widerstandsleiters und dessen Halterungen keine mechanische Beschädigungen während der Erwärmung verursachen. Ein weiterer Vorteil ist darin zu sehen, dass man z.B. durch serpentinartige oder mäandrische Anordnung des Widerstandsleiters eine induktivitätsarme Lösung erreichen kann.The advantages achieved by the invention are essentially to be seen in the fact that the direct arrangement of the resistance conductor in the cooling liquid, preferably in the deionized water, ensures effective and uniform heat dissipation, the heat capacity being relatively high. Because the resistance conductor is no longer rigid e.g. must attach to a ceramic body, the choice of material is also much easier. In the solution according to the invention, large differences in the thermal expansion coefficients of the resistance conductor and its holders cannot cause mechanical damage during the heating. Another advantage is the fact that e.g. can achieve a low-inductance solution through serpentine or meandering arrangement of the resistance conductor.

Im folgenden wird die Erfindung anhand von zwei Ausführungsmöglichkeiten näher erläutert.The invention is explained in more detail below with the aid of two possible embodiments.

Es zeigt:

  • Fig. 1 einen vereinfacht gezeichneten Längsschnitt durch eine erste beispielsweise Ausführungsform des erfindungsgemässen flüssigkeitsgekühlten Leistungswiderstandes mit einem an zwei Anschlussstifte angeschlossenen Widerstandsleiter,
  • Fig. 2 den Schnitt II-II aus Fig. l,
  • Fig. 3 den Schnitt III-III aus Fig. 2 und
  • Fig. 4 eine zweite beispielsweise erfindungsgemässe Ausführungsform, bei welcher die Mitte des Widerstandsleiters an einen Anschlussstift und die Enden des Widerstandsleiters an zwei weitere, in dieser Figur 4 dargestellte Anschlussstifte angeschlossen sind.
It shows:
  • 1 shows a simplified longitudinal section through a first exemplary embodiment of the liquid-cooled power resistor according to the invention with a resistance conductor connected to two connecting pins,
  • 2 shows the section II-II from FIG. 1,
  • Fig. 3 shows the section III-III of Fig. 2 and
  • 4 shows a second embodiment according to the invention, for example, in which the center of the resistance conductor is connected to a connection pin and the ends of the resistance conductor are connected to two further connection pins shown in FIG. 4.

Gemäss Fig. 1 besteht ein Gehäuse 1 aus einem Zylinder 2, der mit zwei Flanschen 2' versehen ist, und aus einer oberen Deckplatte 3 und einer.unteren Deckplatte 4. Die Flansche 2' sind in Quadratform ausgebildet, so dass ihre Ecken den Zylinder 2 überragen und zur Verbindung mit den Deckplatten 3, 4 mittels Befestigungsschrauben 5 dienen. Das geschlossene Gehäuse 1 ist mit zwei Anschlüssen 6 für entionisiertes Wasser versehen, wobei im unteren Anschluss 6 eine Eintrittsbohrung 7 und im oberen Anschluss 6 eine Austrittsbohrung 8 vorgesehen sind. Die Pfeile zeigen die Strömungsrichtung. Im Inneren des Gehäuses 1 sind vier Blenden 9 befestigt. Sie lassen wechselweise links und rechts je einen Durchflussquerschnitt 10 frei und dienen zur Ablenkung des entionisierten Wassers. Sie sind mit Bohrungen 15 versehen, die in Fig. 2 dargestellt sind. Durch diese Bohrungen 15 ist serpentinartig ein Widerstansleiter 11 geführt, so dass die Blenden 9 gleichzeitig als Halterungen für den Widerstandsleiter 11 verwendet sind. In der oberen Deckplatte 3 ist ein oberer Anschlussstift 12 und in der unteren Deckplatte 4 ein unterer Anschlussstift 13 eingesetzt. Beide Anschlussstifte 12, 13 sind mit Muttern 14 fixiert und ihre äusseren Teile bilden die elektrischen Anschlüsse. Der innere Teil des oberen Anschlussstiftes 12 ist mit oberem Ende 16 des Widerstandsleiters 11 und der innere Teil des unteren Anschlussstiftes 13 ist mit unterem Ende 17 des Widerstandsleiters 11 elektrisch und mechanisch verbunden. In diesem Beispiel sind die Enden 16, 17 des Widerstandsleiters 11 in die inneren Teile der Anschlussstifte 12, 13 eingepresst. Man kann selbstverständlich auch eine andere an sich bekannte Art der Verbindung verwenden, z.B. Löten, Schweissen oder Verschrauben. Im gezeigten Beispiel besteht der Zylinder 2 mit den Flanschen 2' aus Aluminium. Die Deckplatten 3, 4 sind aus Polypropylen hergestellt. Die Anschlussstifte 12 und 13 sind also gegenseitig elektrisch isoliert. Der Widerstandsleiter 11 besteht aus einer Chrom-Nickel-Legierung, die Anschlussstifte 12, 13 aus Kupfer, die Blenden 9 aus Polypropylen. Das als Kühlflüssigkeit verwendete entionisierte Wasser läuft durch den Leistungswiderstand und wird im Bypassbetrieb dauernd aufbereitet. Es können auch andere an sich bekannte Kühlflüssigkeiten Verwendung finden, z.B. Oel. Selbstverständlich kann man auch andere Metalle, Legierungen und Kunststoffe für die Konstruktion des Leistungswiderstandes verwenden. Wenn der Zylinder 2 aus einem elektrisch leitenden Material hergestellt wird, sollten die Deckplatten 3, 4 aus einem elektrisch isolierenden Material hergestellt werden. Wenn das Gehäuse 1 voll aus Metall besteht, muss man die Anschlussstifte 12, 13 in die Deckplatten 3, 4 isolierend einsetzen.1, a housing 1 consists of a cylinder 2, which is provided with two flanges 2 ', and an upper cover plate 3 and a lower cover plate 4. The flanges 2' are of square shape, so that their corners form the cylinder 2 protrude and serve for connection to the cover plates 3, 4 by means of fastening screws 5. The closed housing 1 is provided with two connections 6 for deionized water, an inlet bore 7 being provided in the lower connection 6 and an outlet bore 8 being provided in the upper connection 6. The arrows show the direction of flow. In the interior of the housing 1, four screens 9 are attached. They alternately leave a flow cross-section 10 on the left and right and serve to deflect the deionized water. They are provided with holes 15, which are shown in Fig. 2. A resistance conductor 11 is guided through these bores 15 in a serpentine manner, so that the screens 9 are simultaneously used as holders for the resistance conductor 11. An upper connecting pin 12 is inserted in the upper cover plate 3 and a lower connecting pin 13 is inserted in the lower cover plate 4. Both pins 12, 13 are fixed with nuts 14 and their outer parts form the electrical connections. The inner part of the upper pin 12 is with the upper end 16 of the resistance conductor 11 and the inner part of the lower connecting pin 13 is electrically and mechanically connected to the lower end 17 of the resistance conductor 11. In this example, the ends 16, 17 of the resistance conductor 11 are pressed into the inner parts of the connection pins 12, 13. Another type of connection known per se can of course also be used, for example soldering, welding or screwing. In the example shown, the cylinder 2 with the flanges 2 'is made of aluminum. The cover plates 3, 4 are made of polypropylene. The connection pins 12 and 13 are therefore electrically insulated from one another. The resistance conductor 11 consists of a chromium-nickel alloy, the connecting pins 12, 13 made of copper, the screens 9 made of polypropylene. The deionized water used as coolant runs through the power resistor and is continuously treated in bypass operation. Other cooling liquids known per se can also be used, for example oil. Of course, other metals, alloys and plastics can also be used for the construction of the power resistor. If the cylinder 2 is made of an electrically conductive material, the cover plates 3, 4 should be made of an electrically insulating material. If the housing 1 is made entirely of metal, the connecting pins 12, 13 must be inserted into the cover plates 3, 4 in an insulating manner.

Die Bezugszahlen von Fig. 1 gelten für gleiche Teile auch in den weiteren Figuren.The reference numbers in FIG. 1 also apply to the same parts in the other figures.

In Fig. 2 ist der Schnitt II-II aus Fig. 1 gezeigt. Man sieht die obere Blende 9 und rechts von dieser Blende 9 den freien Durchflussquerschnitt 10. Es ist dargestellt, wie die Schlingen des Widerstandsleiters 11 oberhalb der Blende 9 verlaufen. Rechts oben befindet sich der Teil (17) des Widerstandsleiters 11, der direkt mit dem unteren Ende 17 des Widerstandsleiters 11 verbunden ist, links unten ist ein Schnitt durch das obere Ende 16 des Widerstandsleiters 11 gezeigt. Die Schlingen des Widerstandsleiters 11 verhindern eventuelle mechanische Beschädigungen während der Wärmedehnungen. Die Bohrungen 15 in den Blenden 9 sind grösser als der Querschnitt des Widerstandsleiters 11. Diese Lösung weist mehrere Vorteile auf. Die Montage des Widerstandsleiters 11 ist einfacher, der Widerstandsleiter 11 kann während der Wärmedehüngen in den Bohrungen 15 gleiten und ist auch - in diesen Stellen gut gekühlt, weil kleine Teile der Kühlflüssigkeit durch diese Bohrungen 15 strömen können.2 shows the section II-II from FIG. 1. One can see the upper orifice 9 and to the right of this orifice 9 the free flow cross-section 10. It is shown how the loops of the resistance conductor 11 run above the orifice 9. The part (17) of the Resistance conductor 11, which is connected directly to the lower end 17 of the resistance conductor 11, a section through the upper end 16 of the resistance conductor 11 is shown at the bottom left. The loops of the resistance conductor 11 prevent any mechanical damage during thermal expansion. The holes 15 in the diaphragms 9 are larger than the cross section of the resistance conductor 11. This solution has several advantages. The assembly of the resistance conductor 11 is simpler, the resistance conductor 11 can slide in the bores 15 during the thermal expansion and is also well-cooled in these places, because small parts of the cooling liquid can flow through these bores 15.

Fig. 3 stellt den Schnitt III-III aus Fig. 2 dar. In dieser Figur 3 ist die Führung des Widerstandsleiters 11 senkrecht zu der Führung dargestellt, wie sie in der Fig. 1 gezeigt ist. Wegen der Anschaulichkeit ist der Widerstandsleiter 11 in den Figuren 1 und 3 in einer Ebene gezeichnet. Die räumliche Verteilung ist aus der Figur 2 sichtbar.FIG. 3 shows the section III-III from FIG. 2. In this FIG. 3, the guide of the resistance conductor 11 is shown perpendicular to the guide, as shown in FIG. 1. For reasons of clarity, the resistance conductor 11 is drawn in one plane in FIGS. 1 and 3. The spatial distribution can be seen from FIG. 2.

In Fig. 4 ist die obere Deckplatte 3 einer anderen beispielsweisen Ausführungsform der Erfindung veranschaulicht. Diese Konstruktion entspricht im wesentlichen derjenigen gemäss Fig. 1 bis 3 mit dem Unterschied, dass in der oberen Deckplatte 3 zusätzlich zu dem schon beschriebenen oberen Anschlussstift 12 ein zweiter oberer Anschlussstift 12' eingesetzt ist. Mit diesen Anschlussstiften 12, 12' sind beide Enden des Widerstandsleiters 11 verbunden, wobei die Mitte des Widerstandsleiters 11 mit dem schon ebenfalls beschriebenen, in dieser Figur 4 nicht sichtbaren, unteren Anschlussstift 13 verbunden ist. Auf diese Weise sind im Gehäuse 1 zwei Teile des Widerstandsleiters 11 vorhanden, die man entweder in Serie zwischen den Anschlussstiften 12 und 12' oder parallel zwischen dem unteren Anschlussstift 13 und den kurzgeschlossenen Anschlussstiften 12 und 12' schalten kann. Diese Variante gibt die Möglichkeit, zwischen zwei verschiedenen Widerstandswerten zu wählen.4, the top cover plate 3 of another exemplary embodiment of the invention is illustrated. This construction corresponds essentially to that according to FIGS. 1 to 3 with the difference that in addition to the upper connecting pin 12 already described, a second upper connecting pin 12 'is inserted in the upper cover plate 3. Both ends of the resistance conductor 11 are connected to these connection pins 12, 12 ′, the center of the resistance conductor 11 being connected to the lower connection pin 13, which has also already been described and is not visible in FIG. 4. In this way, two parts of the resistance conductor 11 are present in the housing 1, which one either in series between the connecting pins 12 and 12 'or in parallel between the lower connecting pin 13 and the short can switch closed pins 12 and 12 '. This variant gives you the option of choosing between two different resistance values.

Der erfindungsgemässe flüssigkeitsgekühlte Leistungswiderstand ist insbesondere zur Beschaltung von Leistungsthyristoren in Stromrichteranlagen geeignet.The liquid-cooled power resistor according to the invention is particularly suitable for connecting power thyristors in converter systems.

B e z e i c h n u g s l i s t eB e z e i c h n u g s l i s t e

  • 1 Gehäuse1 housing
  • 2 Zylinder2 cylinders
  • 2' Flansche des Zylinders 22 'flanges of cylinder 2
  • 3 obere Deckplatte3 upper cover plate
  • 4 untere Deckplatte4 lower cover plate
  • 5 Befestigungsschrauben5 fastening screws
  • 6 Anschlüsse für Kühlflüssigkeit6 connections for coolant
  • 7 Eintrittsbohrung7 inlet bore
  • 8 Austrittsbohrung8 exit bore
  • 9 Blenden9 apertures
  • 10 Durchflussquerschnitt10 flow cross-section
  • 11 Widerstandsleiter11 resistance conductors
  • 12 oberer Anschlussstift12 upper connector pin
  • 12' zweiter oberer Anschlussstift12 'second upper connector pin
  • 13 unterer Anschlussstift13 lower pin
  • 14 Muttern14 nuts
  • 15 Bohrungen in den Blenden 915 holes in the panels 9
  • 16 oberes Ende des Widerstandsdrahtes 1116 upper end of the resistance wire 11
  • 17 unteres Ende des Widerstandsdrahtes 1117 lower end of the resistance wire 11

Claims (9)

1. Flüssigkeitsgekühlter Leistungswiderstand mit wenigstens einem im Gehäuse (1) angeordneten Widerstandsleiter (11), dadurch gekennzeichnet, dass der Widerstandsleiter (11) innerhalb eines geschlossenen Gehäuses (1) direkt in einer Kühlflüssigkeit angeordnet ist.1. Liquid-cooled power resistor with at least one resistance conductor (11) arranged in the housing (1), characterized in that the resistance conductor (11) is arranged directly in a cooling liquid within a closed housing (1). 2. Leistungswiderstand nach Anspruch 1, dadurch gekennzeichnet, dass der Widerstandsleiter (11) induktivitätsarm in wenigstens zwei Abschnitten mit wechselnder Stromflussrichtung angeordnet ist.2. Power resistor according to claim 1, characterized in that the resistance conductor (11) is arranged with little inductance in at least two sections with alternating current flow direction. 3. Leistungswiderstand nach Anspruch 1, dadurch. gekennzeichnnet, dass im Gehäuse (1) wenigstens zwei Blenden (9) befestigt sind, die Bohrungen (15) zum Durchziehen des Widerstandsleiters (11) aufweisen und somit Halterungen des Widerstandsleiters (11) bilden.3. Power resistor according to claim 1, characterized. marked that at least two screens (9) are fastened in the housing (1), which have bores (15) for pulling through the resistance conductor (11) and thus form brackets for the resistance conductor (11). 4. Leistungswiderstand nach Anspruch 3, dadurch gekennzeichnet, dass die Bohrungen (15) in den Blenden (9) grösser sind als der Querschnitt des Widerstandsleiters (11).4. Power resistor according to claim 3, characterized in that the bores (15) in the diaphragms (9) are larger than the cross section of the resistance conductor (11). 5. Leistungswiderstand nach Anspruch 3, dadurch gekennzeichnet, dass die im Gehäuse (1) befestigten Blenden (9) nur einen Teil des Querschnittes des Gehäuses (1) absperren, wobei die freien Durchflussquerschnitte (10) des Gehäuses (1) für die Kühlflüssigkeit zur Ablenkung der Kühlflüssigkeit gegenseitig versetzt sind.5. Power resistor according to claim 3, characterized in that the panels (1) fastened in the housing (1) shut off only a part of the cross section of the housing (1), the free flow cross sections (10) of the housing (1) for the cooling liquid Deflection of the coolant are mutually offset. 6. Leistungswiderstand nach Anspruch 1, dadurch gekennzeichnet, dass der Widerstandsleiter (11) mit seiner Mitte an einen Anschlussstift (13) und mit seinen Enden (16) je an einen weiteren Anschlussstift (12, 12') angeschlossen ist.6. Power resistor according to claim 1, characterized in that the resistance conductor (11) with its center to a connecting pin (13) and with its ends (16) each is connected to a further connection pin (12, 12 '). 7. Leistungswiderstand nach Anspruch 1, dadurch gekennzeichnet, dass das Gehäuse (1) wenigstens einen elektrisch isolierenden Teil enthält.7. Power resistor according to claim 1, characterized in that the housing (1) contains at least one electrically insulating part. 8. Leistungswiderstand nach Anspruch 1, dadurch gekennzeichnet, dass die Kühlflüssigkeit durch entionisiertes Wasser gebildet ist.8. Power resistor according to claim 1, characterized in that the cooling liquid is formed by deionized water. 9. Verwendung des Leistungswiderstandes nach wenigstens einem der Ansprüche 1 bis 8 zur Beschaltung von Thyristoren in Stromrichteranlagen.9. Use of the power resistor according to at least one of claims 1 to 8 for wiring thyristors in converter systems.
EP82200502A 1981-05-21 1982-04-28 Liquid-cooled power resistor and its application Expired EP0066902B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH332281 1981-05-21
CH3322/81 1981-05-21

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EP0066902A1 true EP0066902A1 (en) 1982-12-15
EP0066902B1 EP0066902B1 (en) 1985-11-21

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EP82200502A Expired EP0066902B1 (en) 1981-05-21 1982-04-28 Liquid-cooled power resistor and its application

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US (1) US4434417A (en)
EP (1) EP0066902B1 (en)
DE (1) DE3267531D1 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0101623A1 (en) * 1982-08-17 1984-02-29 BBC Brown Boveri AG Supporting device for zig-zag winding, and use of this supporting device
DE4008422A1 (en) * 1990-03-16 1991-09-19 Asea Brown Boveri Electrical power resistor for thyristor - has folded strip resistor elements in housing with circulated cooling fluid
FR2675622A1 (en) * 1991-04-18 1992-10-23 Asea Brown Boveri ELECTRICAL RESISTANCE.
US5508677A (en) * 1991-09-19 1996-04-16 Siemens Aktiengesellschaft Liquid-cooled heavy-duty resistor
WO2012019470A1 (en) * 2010-08-09 2012-02-16 华中科技大学 High power pulse linear dummy load

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JP2817451B2 (en) * 1991-06-25 1998-10-30 日本電気株式会社 Cathode for electron tube
DE9203354U1 (en) * 1992-03-12 1992-04-30 Siemens AG, 80333 München Liquid-cooled high-load resistor
DE19542162C2 (en) * 1995-11-11 2000-11-23 Abb Research Ltd Overcurrent limiter
DE102004048661A1 (en) * 2004-09-09 2006-03-30 Eldis Ehmki & Schmid Ohg High power resistor
DE102011100760A1 (en) * 2011-05-07 2012-11-08 Walter Marks Control device and method for driving a semiconductor switch
EP2592633B1 (en) * 2011-11-14 2017-06-14 Cressall Resistors Limited Liquid-cooled resistor device
CN103050203B (en) * 2012-12-13 2015-08-19 国网智能电网研究院 A kind of integrated water-cooling damping resistance for extra-high voltage direct current converter valve
EP2897137B1 (en) * 2014-01-16 2020-04-29 Vishay MCB Industrie High-power compact electrical resistance
RU207661U1 (en) * 2021-08-03 2021-11-09 Вадим Иосифович Лось RESISTIVE ASSEMBLY OF HIGH VOLTAGE WATER-COOLED RESISTORS

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DE687083C (en) * 1938-07-22 1940-01-22 Telefunken Gmbh Liquid-cooled resistance
US2640092A (en) * 1949-11-17 1953-05-26 Us Navy Low reactance shunt
FR2397766A1 (en) * 1977-07-15 1979-02-09 Linde Ag ELECTRIC HEATING DEVICE

Patent Citations (3)

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DE687083C (en) * 1938-07-22 1940-01-22 Telefunken Gmbh Liquid-cooled resistance
US2640092A (en) * 1949-11-17 1953-05-26 Us Navy Low reactance shunt
FR2397766A1 (en) * 1977-07-15 1979-02-09 Linde Ag ELECTRIC HEATING DEVICE

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0101623A1 (en) * 1982-08-17 1984-02-29 BBC Brown Boveri AG Supporting device for zig-zag winding, and use of this supporting device
DE4008422A1 (en) * 1990-03-16 1991-09-19 Asea Brown Boveri Electrical power resistor for thyristor - has folded strip resistor elements in housing with circulated cooling fluid
FR2675622A1 (en) * 1991-04-18 1992-10-23 Asea Brown Boveri ELECTRICAL RESISTANCE.
FR2680042A1 (en) * 1991-04-18 1993-02-05 Asea Brown Boveri ELECTRICAL RESISTANCE.
US5508677A (en) * 1991-09-19 1996-04-16 Siemens Aktiengesellschaft Liquid-cooled heavy-duty resistor
WO2012019470A1 (en) * 2010-08-09 2012-02-16 华中科技大学 High power pulse linear dummy load

Also Published As

Publication number Publication date
DE3267531D1 (en) 1986-01-02
EP0066902B1 (en) 1985-11-21
US4434417A (en) 1984-02-28

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