EP0465700A1 - Inductance du type monospire - Google Patents

Inductance du type monospire Download PDF

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Publication number
EP0465700A1
EP0465700A1 EP90113180A EP90113180A EP0465700A1 EP 0465700 A1 EP0465700 A1 EP 0465700A1 EP 90113180 A EP90113180 A EP 90113180A EP 90113180 A EP90113180 A EP 90113180A EP 0465700 A1 EP0465700 A1 EP 0465700A1
Authority
EP
European Patent Office
Prior art keywords
heat
heat pipe
line
cores
cooling
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
EP90113180A
Other languages
German (de)
English (en)
Other versions
EP0465700B1 (fr
Inventor
Rainer Dr. Ing. Marquardt
Manfred Dipl. Ing. Seibert
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.)
Siemens AG
Siemens Corp
Original Assignee
Siemens AG
Siemens Corp
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 Siemens AG, Siemens Corp filed Critical Siemens AG
Priority to EP90113180A priority Critical patent/EP0465700B1/fr
Priority to DE9090113180T priority patent/DE59000938D1/de
Priority to AT90113180T priority patent/ATE86048T1/de
Publication of EP0465700A1 publication Critical patent/EP0465700A1/fr
Application granted granted Critical
Publication of EP0465700B1 publication Critical patent/EP0465700B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • H01F27/08—Cooling; Ventilating
    • H01F27/10—Liquid cooling
    • H01F27/18—Liquid cooling by evaporating liquids
    • 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
    • H01F27/08—Cooling; Ventilating

Definitions

  • the invention relates to a single-conductor choke consisting of a tubular electrical conductor provided with cores, and a choke arrangement consisting of several single-conductor chokes.
  • Single-core chokes of this type are commercially available (company brochure "Saturable Thyristor Protection Chokes", VAC Vacuum Melt GmbH, M 036, 11/78).
  • cores are pushed onto a hollow cylindrical conductor.
  • Metal powder composite materials, ferrite cores or cores made of wound iron strip are provided as cores.
  • materials with a rectangular hysteresis loop can be provided as the core material or the throttle cores can be provided with air gaps (shear).
  • a heat pipe also known as a heat pipe
  • This heat transfer element has an evaporation zone, a transport zone and a condensation zone.
  • the heat pipe is a closed copper pipe.
  • the inner wall is either lined with a fine-meshed copper net or provided with a large number of engraved longitudinal grooves.
  • heat pipes are used in the field of heating, ventilation and air conditioning technology.
  • heat pipes are used for special heat sinks for power amplifiers of hi-fi amplifiers (Elektronik Industrie, 1987, Issue 11, pages 64 to 72).
  • Thyristor power converters have long been used to convert electrical energy on traction vehicles. They primarily serve as actuators upstream of the traction motors for low-loss and comfortable adjustment of the tractive force and speed of the vehicles.
  • the thyristor converter forms three-phase current of variable frequency from the direct voltage of the contact wire to supply asynchronous drive motors.
  • the conversion of the energy causes losses that are distributed to the converter parts. Most losses occur in the thyristors and diodes and in the components that belong directly to their surroundings (resistors, capacitors, chokes, etc.). The losses have to be discharged to the air.
  • This cooling air to which all losses are ultimately dissipated, is not clean. The air can be more or less polluted depending on the location of the locomotive. Brake, road dust and textile fibers can get into the cooling circuit on local trains. In locomotives used in industrial plants, the cooling air is often mixed with coal and ore dust and aggressive gases.
  • can cooling the loss-generating components are cooled with cooling cans through which liquid flows. This can cooling results in very good thermal efficiency for power semiconductors. Cooling other components in this way is less good or impossible. These include resistors, capacitors, step cores, chokes, etc., so that you often have to rely on air cooling.
  • a complete encapsulation of all loss-generating components of a current direction can be achieved with bath cooling.
  • Oil bath cooling is known, with all loss-generating components inside a closed vessel being cooled in a liquid bath, partly with the help of heat sinks. The higher the flow rate of the bath on the surface to be cooled, the better the power loss is dissipated.
  • pumps are required which, like the oil dry coolers, must be arranged outside the vessel. These pumps and oil dry coolers increase the volume and weight of the converter.
  • a further development of bath cooling is the Siede bath cooling.
  • the coolant moves between the "liquid” and “steam” phases in evaporative cooling.
  • liquid boiling at low temperature changes into vapor, absorbing the heat of vaporization.
  • the vapor rises in the vessel and condenses on the inner surfaces of the vessel, the outer surfaces of which have cooling fins towards the air. The condensate drips back into the bath.
  • the invention is based on the object of specifying a single-line throttle or a throttle arrangement consisting of a plurality of single-line throttles, which is particularly suitable for a liquid cooled power converter can be used, the cooling cannot be influenced by contamination.
  • a heat pipe is provided as an electrical conductor
  • the condensation zone is provided with a heat-conducting mounting block which is provided as a heat sink.
  • the power loss can be optimally removed regardless of the pollution of the cooling air.
  • the mounting block can operate as a heat sink, it is blown with cooling air or at least a cooling box is attached to a flat side of the mounting block.
  • the changeable factors of the heat pipe namely the diameter of the heat pipe, the angle of inclination and the working temperature, must be dimensioned.
  • a plurality of single-line throttles are combined to form a throttle arrangement such that the mounting blocks are thermally connected to one another by means of a clamping assembly with cooling sockets and the evaporation zones of at least two single-line throttles are electrically conductively connected to one another by means of electrically conductive connecting webs.
  • the heat pipe is detachably connected to its mounting block.
  • the assembly effort in the case of the throttle arrangement is reduced in particular since the tensioning assembly can be prefabricated, in whose assembly blocks the individual heat pipes with their cores can then be used. After that, only the evaporation zones of the individual heat pipes have to be electrically conductively connected to one another.
  • This single-line choke 2 has as the electrical conductor a heat pipe 4, also called a heat pipe, on which the cores 6 are pushed, and its condensation zone 8 is surrounded by a mounting block 10.
  • the cores 6 cover the entire transport zone 12 and for the most part the evaporation zone 14 of the heat pipe 4.
  • tube 4 there is a small amount of a boiling liquid and a fine-meshed copper mesh 16 under vacuum. Copper has been chosen as the material for tube 4, since this heat transfer element 4 is to take over the function of the conductor.
  • the heat pipe 4 is connected to the mounting block 10, which is also made of copper, in a heat-conducting manner.
  • the mounting block 10 serves as a heat sink, it is blown with cooling air, for example.
  • this mounting block 10 is grounded.
  • a voltage U is applied to the end of the heat pipe 4 opposite this mounting block 10.
  • Conventional choke cores can be used as cores 6, for example metal powder composite materials, ferrite cores or cores made of wound iron strip.
  • these choke cores 6 can be provided with an air gap (shear) or consist of a material with a rectangular hysteresis loop.
  • this inductor 2 In operation, this inductor 2 generates a power loss, whereby the inductor 2 heats up.
  • the heat sink at the condensation zone 8 creates a temperature distribution within the heat pipe 4, as a result of which the boiling liquid evaporates in the evaporation zone 14 opposite the condensation zone 8.
  • This steam flows to the heat sink and condenses there.
  • the condensate flows back to the evaporation zone 14 through the capillary structure of the fine-meshed copper network 16.
  • the known measures for increasing the heat transfer performance of the heat pipe 4 can also be applied to this single-line throttle.
  • FIG. 2 shows an advantageous embodiment of the single-conductor throttle 2 according to FIG. 1.
  • a bore 18 of the mounting block 10 is provided with an internal thread 20 and the heat pipe 4 in the area of the condensation zone 8 with an external thread 22.
  • the heat pipe 4 is detachable with egg Nem mounting block 10 connectable.
  • both flat sides are each provided with a cooling box 24 and 26 in this embodiment.
  • These cooling boxes 24 and 26 can be part of a clamping device.
  • Clamping devices for generating thyristor columns are known (DE 29 25 775 A1). By means of this releasable connection, it is possible to reduce the assembly effort, since the tensioning device can be preassembled and, if necessary, installed in a liquid-cooled converter system.
  • FIG. 3 shows a throttle arrangement 28, consisting of several single-line throttles 2 according to FIG. 1, of which only three single-line throttles 2 are shown for the sake of clarity.
  • the evaporation zones 14 of at least two single-line throttles 2 are connected to one another by means of electrically conductive connecting webs 30.
  • the mounting blocks 10 of the single-conductor chokes 2 are thermally conductively connected to one another by means of a clamping assembly with cooling sockets 24, 26, 32, 34. Through the electrical series connection of several single-conductor chokes 2, the value of the inductance of the choke arrangement 28 can be increased.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Cooling Or The Like Of Electrical Apparatus (AREA)
  • Coils Or Transformers For Communication (AREA)
  • Coils Of Transformers For General Uses (AREA)
  • Transformer Cooling (AREA)
  • Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)
EP90113180A 1990-07-10 1990-07-10 Inductance du type monospire Expired - Lifetime EP0465700B1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP90113180A EP0465700B1 (fr) 1990-07-10 1990-07-10 Inductance du type monospire
DE9090113180T DE59000938D1 (de) 1990-07-10 1990-07-10 Einleiterdrossel.
AT90113180T ATE86048T1 (de) 1990-07-10 1990-07-10 Einleiterdrossel.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP90113180A EP0465700B1 (fr) 1990-07-10 1990-07-10 Inductance du type monospire

Publications (2)

Publication Number Publication Date
EP0465700A1 true EP0465700A1 (fr) 1992-01-15
EP0465700B1 EP0465700B1 (fr) 1993-02-24

Family

ID=8204200

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90113180A Expired - Lifetime EP0465700B1 (fr) 1990-07-10 1990-07-10 Inductance du type monospire

Country Status (3)

Country Link
EP (1) EP0465700B1 (fr)
AT (1) ATE86048T1 (fr)
DE (1) DE59000938D1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9309428U1 (de) * 1993-06-24 1993-08-12 Siemens AG, 80333 München Stromrichtermodul
US6583682B1 (en) * 1999-04-22 2003-06-24 International Rectifier Corporation Method of reducing conducted EMI in motor drive applications
EP2144259A3 (fr) * 2008-07-09 2012-12-26 Hamilton Sundstrand Corporation Transformateur interphase
CN104170036A (zh) * 2012-03-15 2014-11-26 丰田自动车株式会社 电抗器单元
CN113314305A (zh) * 2021-05-27 2021-08-27 河南安益达电工有限公司 一种箱式变压器及其智能散热控制系统

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19723958C2 (de) * 1997-06-06 2000-08-24 Siemens Ag Spannverband
DE19738946C2 (de) * 1997-09-05 2000-10-26 Siemens Ag Drosselspule ohne Kern
EP2977996A1 (fr) 2014-07-21 2016-01-27 Siemens Aktiengesellschaft Transducteur d'un convertisseur
US12002613B2 (en) 2019-11-22 2024-06-04 Toyota Motor Engineering & Manufacturing North America, Inc. Double-sided cooling package of inductor

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3836415A1 (de) * 1987-10-28 1989-05-11 Johan Christiaan Fitter Elektromagnetische vorrichtung mit kuehleinrichtung

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3836415A1 (de) * 1987-10-28 1989-05-11 Johan Christiaan Fitter Elektromagnetische vorrichtung mit kuehleinrichtung

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
ELEKTRONIK INDUSTRIE no. 11, 1987, HANNOVER Seiten 64 - 72; HORST SCHAEFER: "HEAT-PIPE-KUEHLSYSTEME: NEUE WEGE BEI DER LOESUNG THERMISCHER PROBLEME." *

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9309428U1 (de) * 1993-06-24 1993-08-12 Siemens AG, 80333 München Stromrichtermodul
US6583682B1 (en) * 1999-04-22 2003-06-24 International Rectifier Corporation Method of reducing conducted EMI in motor drive applications
EP2144259A3 (fr) * 2008-07-09 2012-12-26 Hamilton Sundstrand Corporation Transformateur interphase
CN104170036A (zh) * 2012-03-15 2014-11-26 丰田自动车株式会社 电抗器单元
DE112012006034B4 (de) 2012-03-15 2023-03-30 Denso Corporation Reaktoreinheit
CN113314305A (zh) * 2021-05-27 2021-08-27 河南安益达电工有限公司 一种箱式变压器及其智能散热控制系统

Also Published As

Publication number Publication date
DE59000938D1 (de) 1993-04-01
EP0465700B1 (fr) 1993-02-24
ATE86048T1 (de) 1993-03-15

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