EP0066902A1 - Résistance de puissance refroidie par liquide et son application - Google Patents

Résistance de puissance refroidie par liquide et son 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
Authority
EP
European Patent Office
Prior art keywords
resistance conductor
power resistor
housing
resistor according
resistance
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.)
Granted
Application number
EP82200502A
Other languages
German (de)
English (en)
Other versions
EP0066902B1 (fr
Inventor
Konrad Beriger
Ladislav Kucera
Paul Schneider
Günther Spittaler
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BBC Brown Boveri AG Switzerland
Original Assignee
BBC Brown Boveri AG Switzerland
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by BBC Brown Boveri AG Switzerland filed Critical BBC Brown Boveri AG Switzerland
Publication of EP0066902A1 publication Critical patent/EP0066902A1/fr
Application granted granted Critical
Publication of EP0066902B1 publication Critical patent/EP0066902B1/fr
Expired legal-status Critical Current

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Classifications

    • 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.

Landscapes

  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Details Of Resistors (AREA)
EP82200502A 1981-05-21 1982-04-28 Résistance de puissance refroidie par liquide et son application Expired EP0066902B1 (fr)

Applications Claiming Priority (2)

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

Publications (2)

Publication Number Publication Date
EP0066902A1 true EP0066902A1 (fr) 1982-12-15
EP0066902B1 EP0066902B1 (fr) 1985-11-21

Family

ID=4253471

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82200502A Expired EP0066902B1 (fr) 1981-05-21 1982-04-28 Résistance de puissance refroidie par liquide et son application

Country Status (3)

Country Link
US (1) US4434417A (fr)
EP (1) EP0066902B1 (fr)
DE (1) DE3267531D1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0101623A1 (fr) * 1982-08-17 1984-02-29 BBC Brown Boveri AG Dispositif d'appui pour un enroulement ondulé et application de ce dispositif d'appui
DE4008422A1 (de) * 1990-03-16 1991-09-19 Asea Brown Boveri Leistungswiderstand
FR2675622A1 (fr) * 1991-04-18 1992-10-23 Asea Brown Boveri Resistance electrique.
US5508677A (en) * 1991-09-19 1996-04-16 Siemens Aktiengesellschaft Liquid-cooled heavy-duty resistor
WO2012019470A1 (fr) * 2010-08-09 2012-02-16 华中科技大学 Charge fictive linéaire d'impulsion à haute puissance

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2817451B2 (ja) * 1991-06-25 1998-10-30 日本電気株式会社 電子管用カソード
DE9203354U1 (de) * 1992-03-12 1992-04-30 Siemens AG, 80333 München Flüssigkeitsgekühlter Hochlastwiderstand
DE19542162C2 (de) * 1995-11-11 2000-11-23 Abb Research Ltd Überstrombegrenzer
DE102004048661A1 (de) * 2004-09-09 2006-03-30 Eldis Ehmki & Schmid Ohg Hochleistungswiderstand
DE102011100760A1 (de) * 2011-05-07 2012-11-08 Walter Marks Steuereinrichtung und Verfahren zum Ansteuern eines Halbleiterschalters
ES2640640T3 (es) * 2011-11-14 2017-11-03 Cressall Resistors Limited Dispositivo de resistencia refrigerado por líquido
CN103050203B (zh) * 2012-12-13 2015-08-19 国网智能电网研究院 一种用于特高压直流换流阀的一体化水冷阻尼电阻
EP2897137B1 (fr) * 2014-01-16 2020-04-29 Vishay MCB Industrie Résistance électrique compacte à forte puissance
RU207661U1 (ru) * 2021-08-03 2021-11-09 Вадим Иосифович Лось Резистивная сборка высоковольтных водоохлаждаемых резисторов

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE687083C (de) * 1938-07-22 1940-01-22 Telefunken Gmbh Fluessigkeitsgekuehlter Widerstand
US2640092A (en) * 1949-11-17 1953-05-26 Us Navy Low reactance shunt
FR2397766A1 (fr) * 1977-07-15 1979-02-09 Linde Ag Dispositif de chauffage electrique

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2686245A (en) 1945-05-24 1954-08-10 Hays Corp Bridge resistor construction
US2717947A (en) 1953-02-18 1955-09-13 American Television Mfg Corp Non-inductive electrical resistor and means for mounting the same
US3300746A (en) 1963-10-30 1967-01-24 Gen Electric Water cooled screen grid resistor

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE687083C (de) * 1938-07-22 1940-01-22 Telefunken Gmbh Fluessigkeitsgekuehlter Widerstand
US2640092A (en) * 1949-11-17 1953-05-26 Us Navy Low reactance shunt
FR2397766A1 (fr) * 1977-07-15 1979-02-09 Linde Ag Dispositif de chauffage electrique

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0101623A1 (fr) * 1982-08-17 1984-02-29 BBC Brown Boveri AG Dispositif d'appui pour un enroulement ondulé et application de ce dispositif d'appui
DE4008422A1 (de) * 1990-03-16 1991-09-19 Asea Brown Boveri Leistungswiderstand
FR2675622A1 (fr) * 1991-04-18 1992-10-23 Asea Brown Boveri Resistance electrique.
FR2680042A1 (fr) * 1991-04-18 1993-02-05 Asea Brown Boveri Resistance electrique.
US5508677A (en) * 1991-09-19 1996-04-16 Siemens Aktiengesellschaft Liquid-cooled heavy-duty resistor
WO2012019470A1 (fr) * 2010-08-09 2012-02-16 华中科技大学 Charge fictive linéaire d'impulsion à haute puissance

Also Published As

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

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