EP0958585B1 - Stromzuführungsvorrichtung für eine gekühlte elektrische einrichtung - Google Patents
Stromzuführungsvorrichtung für eine gekühlte elektrische einrichtung Download PDFInfo
- Publication number
- EP0958585B1 EP0958585B1 EP98907881A EP98907881A EP0958585B1 EP 0958585 B1 EP0958585 B1 EP 0958585B1 EP 98907881 A EP98907881 A EP 98907881A EP 98907881 A EP98907881 A EP 98907881A EP 0958585 B1 EP0958585 B1 EP 0958585B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- power supply
- regenerator
- pulse tube
- supply apparatus
- cold head
- 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.)
- Expired - Lifetime
Links
- 239000002184 metal Substances 0.000 claims description 9
- 229910052751 metal Inorganic materials 0.000 claims description 9
- 238000001816 cooling Methods 0.000 description 16
- 239000007789 gas Substances 0.000 description 14
- 239000002826 coolant Substances 0.000 description 6
- 239000007788 liquid Substances 0.000 description 6
- 239000000463 material Substances 0.000 description 6
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 5
- 238000005253 cladding Methods 0.000 description 5
- 229910052802 copper Inorganic materials 0.000 description 5
- 239000010949 copper Substances 0.000 description 5
- 230000005291 magnetic effect Effects 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000001307 helium Substances 0.000 description 3
- 229910052734 helium Inorganic materials 0.000 description 3
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 229910001369 Brass Inorganic materials 0.000 description 2
- 229910000906 Bronze Inorganic materials 0.000 description 2
- 239000010951 brass Substances 0.000 description 2
- 239000010974 bronze Substances 0.000 description 2
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 description 2
- 230000001419 dependent effect Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 238000005482 strain hardening Methods 0.000 description 2
- 239000002887 superconductor Substances 0.000 description 2
- 229920002430 Fibre-reinforced plastic Polymers 0.000 description 1
- 229910009203 Y-Ba-Cu-O Inorganic materials 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- LTPBRCUWZOMYOC-UHFFFAOYSA-N beryllium oxide Inorganic materials O=[Be] LTPBRCUWZOMYOC-UHFFFAOYSA-N 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 229910052797 bismuth Inorganic materials 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- PMHQVHHXPFUNSP-UHFFFAOYSA-M copper(1+);methylsulfanylmethane;bromide Chemical compound Br[Cu].CSC PMHQVHHXPFUNSP-UHFFFAOYSA-M 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 239000011151 fibre-reinforced plastic Substances 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 229910052745 lead Inorganic materials 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 239000011226 reinforced ceramic Substances 0.000 description 1
- 238000007788 roughening Methods 0.000 description 1
- 229910052594 sapphire Inorganic materials 0.000 description 1
- 239000010980 sapphire Substances 0.000 description 1
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- 230000007704 transition Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B9/00—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point
- F25B9/14—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point characterised by the cycle used, e.g. Stirling cycle
- F25B9/145—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point characterised by the cycle used, e.g. Stirling cycle pulse-tube cycle
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F6/00—Superconducting magnets; Superconducting coils
- H01F6/06—Coils, e.g. winding, insulating, terminating or casing arrangements therefor
- H01F6/065—Feed-through bushings, terminals and joints
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2309/00—Gas cycle refrigeration machines
- F25B2309/14—Compression machines, plants or systems characterised by the cycle used
- F25B2309/1406—Pulse-tube cycles with pulse tube in co-axial or concentric geometrical arrangements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2309/00—Gas cycle refrigeration machines
- F25B2309/14—Compression machines, plants or systems characterised by the cycle used
- F25B2309/1408—Pulse-tube cycles with pulse tube having U-turn or L-turn type geometrical arrangements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2309/00—Gas cycle refrigeration machines
- F25B2309/14—Compression machines, plants or systems characterised by the cycle used
- F25B2309/1418—Pulse-tube cycles with valves in gas supply and return lines
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2309/00—Gas cycle refrigeration machines
- F25B2309/14—Compression machines, plants or systems characterised by the cycle used
- F25B2309/1419—Pulse-tube cycles with pulse tube having a basic pulse tube refrigerator [PTR], i.e. comprising a tube with basic schematic
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2309/00—Gas cycle refrigeration machines
- F25B2309/14—Compression machines, plants or systems characterised by the cycle used
- F25B2309/1424—Pulse tubes with basic schematic including an orifice and a reservoir
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2309/00—Gas cycle refrigeration machines
- F25B2309/14—Compression machines, plants or systems characterised by the cycle used
- F25B2309/1424—Pulse tubes with basic schematic including an orifice and a reservoir
- F25B2309/14241—Pulse tubes with basic schematic including an orifice reservoir multiple inlet pulse tube
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D19/00—Arrangement or mounting of refrigeration units with respect to devices or objects to be refrigerated, e.g. infrared detectors
- F25D19/006—Thermal coupling structure or interface
Definitions
- the invention relates to a power supply device with at least one between a higher temperature level and a lower temperature level electrical Pipe at its low-temperature end connected to a cooled electrical device and thermally coupled to a cold head of a pulse tube cooler which has a regenerator and a pulse tube.
- a power supply device is e.g. from "Advances in Cryogenic Engineering ", Vol. 41, 1996, pages 1443 until 1447.
- cryogenic systems One of the main problems in the design of cryogenic systems is the efficient introduction of relatively large currents into superconducting or semiconducting devices, such as are provided, for example, for magnetic field generation or for short-circuit current limitation or for voltage transformation or for current transmission.
- the greatest thermal leak in an insulated cryocontainer is often caused by the at least one electrical conductor of the power supply device, which is between a higher temperature level, in particular at room temperature of about 300 K, and a lower temperature level of, for example, 77 K, the temperature of the liquid nitrogen LN 2 . runs on which the electrical device can be located. If the electrical line of the power supply device running between these temperature levels cannot be constructed with little loss and the resulting heat loss is not effectively dissipated, the cooling effort alone can question the technical or economic meaning of the entire system.
- Line cooled power supplies are generally cooled only by conduction from a cold end. If you optimize the dimensions so that the sum of the Joule losses of the metal of the line with a specific resistance ⁇ (T) and due to the heat transport determined by the temperature-dependent thermal conductivity ⁇ (T) is minimal, then the specific loss is, that is Heat input per unit current, for copper about 43 W / kA when considering a single electrical line (see the magazine "IEEE Transactions on Magnetics", Vol. MAG-13, No. 1, 1977, pages 690 to 693).
- the enthalpy of a vaporized coolant for example of LN 2 at 77 K or of liquid helium LHe of 4.2 K, is used to dissipate the heat loss introduced in countercurrent. This enables the specific loss between 300 K and 77 K to be reduced to approximately 25 W / kA, with approximately 0.56 liters of LN 2 evaporating per hour, kiloampere and power supply line.
- the amount of heat introduced into a cryostat dictates given a coolant supply, the service life of the cryogenic System that requires replenishment, or the size of one Cooling unit if no cooling liquids are used. It is also important for a user how high the necessary power at room temperature is provided for cooling must become. This service is e.g. in one Compressor of a cooling unit or in the manufacture of the liquid coolant consumed.
- the object of the present invention is based on this State of the art an improved power supply device with reduced heat loss, reduced space requirements and to provide a simpler structure.
- a pulse tube cooler integral part of the device. It takes advantage of the fact that the cold head of such a pulse tube cooler compared to cold heads of conventional cryocoolers, e.g. work according to the Gifford-McMahon principle, is a simple component with no mechanically moving parts is advantageously inexpensive to manufacture and that due to the lack of further electrical drives against high voltages is isolable.
- the power supply device according to the invention thus represents an intermediate form in terms of heat technology between a line and exhaust-cooled power supply that does not require a flowing liquid coolant and one in relation to a line-cooled power supply causes a comparatively lower heat input. It thus combines the advantages of the two conventional ones Types of power supply.
- parts of a cold head 3 of a pulse tube cooler are used to conduct the electrical power between a warmer side, in particular at room temperature RT, and a colder side, for example at low temperature TT of 77 K LN 2 side.
- the cold head 3 projects at least with its colder part into the vacuum space V of a vacuum vessel 4 or a cryostat.
- the interior of a (bath) cryostat can also be provided with the cold head or cold head part.
- the cold head has a regenerator 6 and a pulse tube 7, which are connected to one another at their low-temperature ends via an overflow line 15.
- the power line forms the cladding tube 6a of the regenerator 6 and / or the cladding tube 7a of the pulse tube 7 in a coaxial or parallel design.
- either the regenerator and the pulse tube can be electrically insulated from one another and form two electrical lines which are at different potential, as is assumed in the exemplary embodiment shown. Or these parts can also be connected in parallel.
- 8a and 8b also denote the power connections at the warmer temperature level RT, 9a and 9b the corresponding power connections at the lower temperature level TT, with 10 an installation opening for the cold head 3 in the vacuum or cryostat vessel 4, with 11 the cold head 3 on its warmer side, insulating mounting flange, which ensures a vacuum or gas-tight seal of the installation opening 10, with 13 a gas inlet and / or outlet on the regenerator, with 14 a gas inlet and / or outlet on the pulse tube , with 15 the, for example, electrically insulating overflow line between the regenerator and the pulse tube, and with 16 a connection for a thermal busbar.
- An external power supply unit located at room temperature RT is to be connected to the power connections 8a and 8b, while a cooled electrical device, which is generally to be kept at the low temperature TT, is connected to the power connections 9a and 9b.
- the electrical device can be, in particular, a cable, a current limiter, a magnetic field winding or parts of electronics, each with superconducting material.
- LHe cooling technology can generally be used for classic superconductor materials such as Nb 3 Sn or NbTi and for metal oxide superconductor materials with a high transition temperature such as Y-Ba-Cu-O or (Bi, Pb) -Sr-Ca-Cu-O- Typically an LN 2 cooling technology can be provided.
- the electrical device can also have normal-conducting or semiconducting parts to be cooled and need not necessarily be at exactly the temperature level TT.
- the embodiment shown in Figure 2 of a designated 22 Power supply device differs from that Embodiment according to Figure 1 in that its cold head 23 one Pulse tube cooler only by means of its regenerator 26 Power supply is used.
- the regenerator contains as current-carrying part in the form of a metallic body e.g. a tightly rolled metal net packed in its cladding tube 26a 26b.
- a porous one can also be used Sintered metal granule body or a bundle of thinner Wires or at least a thin, rolled or folded one Serve metal strips or a number of profile sheets.
- This metallic bodies are on the warm and cold end e.g. electrically contacted by soldering, welding or pressing.
- a bundle of thin wires is particularly suitable for an introduction of alternating current, since the wire thickness is the skin depth can be adjusted.
- 2 is compared to a stack of fine wire nets the heat conduction in the regenerator is greatly increased, so that this Embodiment preferably only for comparatively large Currents is considered.
- an electrical Isolation advantageous by dielectric, e.g. plastics and / or ceramics.
- dielectric e.g. plastics and / or ceramics.
- BeO or aluminum nitride are also preferred to use, which advantageously have a high thermal conductivity.
- Radiation shields or electrical or magnetic apparatus be thermally coupled.
- a separation of potentials between a compressor with possibly electrical Valve train and the power supply device can e.g. through an insulating connecting pipe, for example made of plastic, fiber-reinforced plastic or ceramic can be reached.
- the pulse tube coolers used for a power supply device are based on embodiments known per se (cf., for example, "Cryocoolers 8 ", Plenum Press, New York, 1994, pages 345 to 410; or "Advances in Cryogenic Engineering", vol. 35, plenum Press, New York, 1990, pages 1191 to 1205; or "INFO PHYS TECH” of the VDI Technology Center, No. 6 / February 1996, with the title: “Pulse tube cooler: New refrigeration machines for superconductivity and cryoelectronics", 4 pages; or US 5,335,505 A ).
- Such a pulse tube cooler has, according to FIG.
- a cold head 33 which is generally surrounded by an insulating vacuum, at least with its colder part.
- This cold head has two tubes connected to each other.
- a tube is designed as a so-called regenerator 36 and contains in its interior a body which stores the gas heat periodically, for example in the form of stacked metal meshes 36a with a small mesh size.
- this body is used for power conduction.
- the other tube represents a so-called pulse tube 37, which only has heat exchangers 38 or 39 formed at each of its warm and cold ends, for example formed by fine copper networks, and is otherwise hollow.
- a first supply line 41 serves to supply the regenerator 36 with a generally uncooled, in particular at room temperature RT working gas, for example He gas, under high pressure via the valve train 42a pulsating at a frequency, for example between 2 Hz and 50 Hz.
- working gas is also discharged again via the supply line 41 by means of a valve drive 42b.
- the pulse tube 37 can be connected at its room temperature end via a connecting channel (not shown in the figure) to a second supply line which, depending on the design of the pulse tube cooler, leads to a further valve train (not shown in the figure) or to a buffer volume of the working gas, for example a few liters in size leads (see Figures 5 to 7).
- FIG. 3 also shows a compressor 43 which is connected to the first connecting line 41 by means of an outgoing line 41a with a (high-pressure) valve 42a for the working gas under high pressure and a return line 41b with a (low-pressure) valve 42b for the working gas is connected under low pressure.
- Embodiments of corresponding phase shifters on the warm 5 to 7 show the end of the pulse tube, with a Cold head 33 according to FIG. 3 is used as a basis.
- a buffer volume 51 with throttle 52 is provided for this purpose.
- a corresponding phase shifter can be used also be formed with four valves 42a, 42b, 55a and 55b.
- current supply devices according to the invention can also be based on two-stage and multi-stage variants of pulse tube coolers (cf., for example, magazine “Cryogenics", vol. 34, 1994, pages 259 to 262 ).
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Containers, Films, And Cooling For Superconductive Devices (AREA)
- Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
Description
- deren Figur 1
- eine erste Ausführungsform einer erfindungsgemäßen Stromzuführungsvorrichtung,
- deren Figur 2
- eine weitere Ausführungsform einer solchen Stromzuführungsvorrichtung
- deren Figuren 3 bis 7
- verschiedene Ausführungsformen bekannter Pulsröhrenkühler.
Claims (11)
- Stromzuführungsvorrichtung (2, 22) mit wenigstens einer zwischen einem höheren Temperaturniveau (RT) und einem tieferen Temperaturniveau (TT) verlaufenden elektrischen Leitung, die an ihrem tieftemperaturseitigen Ende mit einer gekühlten elektrischen Einrichtung verbunden und thermisch an einen Kaltkopf (3, 23) eines Pulsröhrenkühlers angekoppelt ist, der einen Regenerator (6, 26) und eine Pulsröhre (7, 27) aufweist, dadurch gekennzeichnet, daß zumindest ein Teilstück der elektrischen Leitung von wenigstens einem Teil (6a, 7a, 26b) des Kaltkopfes (3, 23) gebildet ist.
- Stromzuführungsvorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß ein Hüllrohr (6a) des Regenerators (6) und/oder ein Hüllrohr (7a) der Pulsröhre (7) als Leitungsteilstück vorgesehen ist.
- Stromzuführungsvorrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß ein metallischer Körper (26b) im Inneren eines Hüllrohres (26a) des Regenerators (26) als Leitungsteilstück vorgesehen ist.
- Stromzuführungsvorrichtung nach Anspruch 3, dadurch gekennzeichnet, daß der metallische Körper (26b) ein Metallnetz oder ein Sinterkörper oder ein Drahtbündel oder mindestens ein Blechstreifen ist.
- Stromzuführungsvorrichtung nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß mit dem Regenerator (6) und der Pulsröhre (7) zwei verschiedene, gegenseitig isolierte Leitungsteilstücke gebildet sind.
- Stromzuführungsvorrichtung nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß mit dem Regenerator (6) und der Pulsröhre (7) zwei elektrisch parallelgeschaltete Leitungsteilstücke gebildet sind.
- Stromzuführungsvorrichtung nach einem der Ansprüche 1 bis 6, gekennzeichnet durch eine räumlich parallele Anordnung von Regenerator (6) und Pulsröhre (7).
- Stromzuführungsvorrichtung nach einem der Ansprüche 1 bis 6, gekennzeichnet durch eine räumlich konzentrische Anordnung von Regenerator und Pulsröhre.
- Stromzuführungsvorrichtung nach einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, daß der Kaltkopf mehrstufig ausgebildet ist.
- Stromzuführungsvorrichtung nach einem der Ansprüche 1 bis 9, dadurch gekennzeichnet, daß der Kaltkopf (3, 23) zumindest mit seinem kälteren Teil in den Vakuumraum (V) eines Vakuumgefäßes (4) oder in den Innenraum eines Kryostaten hineinragt.
- Stromzuführungsvorrichtung nach einem der Ansprüche 1 bis 10, gekennzeichnet durch einen elektrischen Anschluß an eine supraleitende Einrichtung.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19704485 | 1997-02-07 | ||
DE19704485A DE19704485C2 (de) | 1997-02-07 | 1997-02-07 | Stromzuführungsvorrichtung für eine gekühlte elektrische Einrichtung |
PCT/DE1998/000285 WO1998035365A1 (de) | 1997-02-07 | 1998-02-02 | Stromzuführungsvorrichtung für eine gekühlte elektrische einrichtung |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0958585A1 EP0958585A1 (de) | 1999-11-24 |
EP0958585B1 true EP0958585B1 (de) | 2003-05-21 |
Family
ID=7819479
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP98907881A Expired - Lifetime EP0958585B1 (de) | 1997-02-07 | 1998-02-02 | Stromzuführungsvorrichtung für eine gekühlte elektrische einrichtung |
Country Status (5)
Country | Link |
---|---|
US (1) | US6112527A (de) |
EP (1) | EP0958585B1 (de) |
JP (1) | JP3898231B2 (de) |
DE (2) | DE19704485C2 (de) |
WO (1) | WO1998035365A1 (de) |
Families Citing this family (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6286318B1 (en) | 1999-02-02 | 2001-09-11 | American Superconductor Corporation | Pulse tube refrigerator and current lead |
WO2000057530A1 (de) * | 1999-03-18 | 2000-09-28 | Siemens Aktiengesellschaft | Anordnung mit leistungselektronik für tieftemperatursysteme |
EP1063482A1 (de) * | 1999-06-24 | 2000-12-27 | CSP Cryogenic Spectrometers GmbH | Kühlvorrichtung |
DE29911071U1 (de) * | 1999-06-24 | 2000-12-14 | Csp Cryogenic Spectrometers Gm | Kühlvorrichtung |
WO2001001048A1 (de) * | 1999-06-24 | 2001-01-04 | Csp Cryogenic Spectrometers Gmbh | Kühlvorrichtung |
EP1072851A1 (de) * | 1999-07-29 | 2001-01-31 | CSP Cryogenic Spectrometers GmbH | Kühlvorrichtung |
DE10035859A1 (de) * | 2000-07-24 | 2002-02-07 | Abb Research Ltd | Wechselstrom-Durchführung |
JP4799757B2 (ja) * | 2001-04-26 | 2011-10-26 | 九州電力株式会社 | 超電導磁石 |
JPWO2003001127A1 (ja) * | 2001-06-21 | 2004-10-14 | エア・ウォーター株式会社 | 蓄冷型冷凍機 |
JP4799770B2 (ja) * | 2001-07-09 | 2011-10-26 | 九州電力株式会社 | 超電導磁石 |
GB0125189D0 (en) * | 2001-10-19 | 2001-12-12 | Oxford Magnet Tech | A pulse tube refrigerator |
US6698224B2 (en) * | 2001-11-07 | 2004-03-02 | Hitachi Kokusai Electric Inc. | Electronic apparatus having at least two electronic parts operating at different temperatures |
US7174721B2 (en) * | 2004-03-26 | 2007-02-13 | Mitchell Matthew P | Cooling load enclosed in pulse tube cooler |
CN101080600B (zh) * | 2005-01-13 | 2010-05-05 | 住友重机械工业株式会社 | 输入功率减小的低温制冷机 |
JP5241414B2 (ja) * | 2008-09-30 | 2013-07-17 | 三洋電機株式会社 | 画像表示装置 |
JP5202220B2 (ja) * | 2008-09-30 | 2013-06-05 | 三洋電機株式会社 | 画像表示装置 |
US20180096018A1 (en) | 2016-09-30 | 2018-04-05 | Microsoft Technology Licensing, Llc | Reducing processing for comparing large metadata sets |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE6910446U (de) * | 1969-03-14 | 1970-01-29 | Friedrich Wilhelm D Burmeister | Trog fuer foerderschnecken zum austragen von fluessigkeiten oder schlaemmen, insbesondere aus sedimentationsbecken von wasseraufbereitungsanlagen |
US3654377A (en) * | 1969-12-15 | 1972-04-04 | Gen Electric | Electrical leads for cryogenic devices |
JPS5735384A (en) * | 1980-07-04 | 1982-02-25 | Japan Atom Energy Res Inst | Large current lead wire for superconductive device |
DE3743033A1 (de) * | 1987-12-18 | 1989-06-29 | Asea Brown Boveri | Magnetsystem |
US5335505A (en) * | 1992-05-25 | 1994-08-09 | Kabushiki Kaisha Toshiba | Pulse tube refrigerator |
FR2701157B1 (fr) * | 1993-02-04 | 1995-03-31 | Alsthom Cge Alcatel | Liaison d'alimentation pour bobine supraconductrice. |
FR2713405B1 (fr) * | 1993-12-03 | 1996-01-19 | Gec Alsthom Electromec | Module d'amenée de courant pour l'alimentation d'une charge électrique supraconductrice à basse température critique. |
US5735127A (en) * | 1995-06-28 | 1998-04-07 | Wisconsin Alumni Research Foundation | Cryogenic cooling apparatus with voltage isolation |
DE19648253C2 (de) * | 1996-11-22 | 2002-04-04 | Siemens Ag | Pulsröhrenkühler und Verwendung desselben |
JP3398300B2 (ja) * | 1997-05-28 | 2003-04-21 | 京セラ株式会社 | 電子装置 |
-
1997
- 1997-02-07 DE DE19704485A patent/DE19704485C2/de not_active Expired - Fee Related
-
1998
- 1998-02-02 WO PCT/DE1998/000285 patent/WO1998035365A1/de active IP Right Grant
- 1998-02-02 DE DE59808460T patent/DE59808460D1/de not_active Expired - Lifetime
- 1998-02-02 EP EP98907881A patent/EP0958585B1/de not_active Expired - Lifetime
- 1998-02-02 JP JP53355098A patent/JP3898231B2/ja not_active Expired - Fee Related
-
1999
- 1999-08-09 US US09/370,252 patent/US6112527A/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
WO1998035365A1 (de) | 1998-08-13 |
EP0958585A1 (de) | 1999-11-24 |
JP2001510551A (ja) | 2001-07-31 |
US6112527A (en) | 2000-09-05 |
DE19704485A1 (de) | 1998-08-20 |
JP3898231B2 (ja) | 2007-03-28 |
DE59808460D1 (de) | 2003-06-26 |
DE19704485C2 (de) | 1998-11-19 |
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