公开(公告)号：WO2017093101A1

公开(公告)日：2017-06-08

申请号：PCT/EP2016/078612

申请日：2016-11-24

Applicant: KONINKLIJKE PHILIPS N.V.

Inventor： AMTHOR, Thomas, Erik ,  FUDERER, Miha ,  MULDER, Gerardus, Bernardus, Jozef ,  LEUSSLER, Christoph ,  FORTHMANN, Peter ,  MENTEUR, Philippe, Abel

IPC: F25B9/10 ,  F25B9/14 ,  F25D19/00

CPC classification number: F25B9/10 ,  F25B9/145 ,  F25D19/006

Abstract: A cryogenic cooling system (10) comprising a cryostat (12), a two-stage cryogenic cold head (24) and at least one thermal connection member (136; 236; 336; 436) that is configured to provide at least a portion of a heat transfer path (138; 238; 338; 438) from the second stage member (30) to the first stage member (26) of the two-stage cryogenic cold head (24). The heat transfer path (138; 238; 338; 438) is arranged outside the cold head (24). A thermal resistance of the provided at least portion of the heat transfer path (138; 238; 338; 438) at the second cryogenic temperature is larger than a thermal resistance of the provided at least portion of the heat transfer path (138; 238; 338; 438) at the first cryogenic temperature.

Abstract translation: 一种包括低温恒温器（12），两级低温冷头（24）和至少一个热连接构件（136; 236; 336; 436）的低温冷却系统（10），所述低温冷却系统 被构造成提供从第二级构件（30）到两级低温冷头（24）的第一级构件（26）的传热路径（138; 238; 338; 438）的至少一部分。 传热路径（138; 238; 338; 438）布置在冷头（24）的外部。 在所述第二低温温度下所提供的所述传热路径（138; 238; 338; 438）的至少一部分的热阻大于所述传热路径（138; 238; 338; 438）的所提供的至少部分的热阻。 338; 438）在第一低温下进行。

公开(公告)号：WO2020234178A1

公开(公告)日：2020-11-26

申请号：PCT/EP2020/063684

申请日：2020-05-15

Applicant: KONINKLIJKE PHILIPS N.V.

Inventor： VAN LANEN, Ezra, Petrus, Antonius ,  VOSS, Matthew, Jonathan ,  MENTEUR, Philippe, Abel

IPC: G01R33/38 ,  G01R33/3815 ,  H01F6/04 ,  F17C3/08

Abstract: An apparatus (200) includes: a cryostat (214) containing a volume of cryogenic fluid; one or more superconducting coils (202) within the cryostat; a sealed cooling system (204) within the cryostat and configured to maintain the one or more superconducting coils in a persistent state; and a second cooling system (210) having a first portion in contact with the sealed cooling system within the cryostat, a second portion extending outside of the cryostat.

公开(公告)号：WO2017178560A1

公开(公告)日：2017-10-19

申请号：PCT/EP2017/058869

申请日：2017-04-12

Applicant: KONINKLIJKE PHILIPS N.V.

Inventor： URBAHN, John ,  MENTEUR, Philippe, Abel ,  PFLEIDERER, Glen, George ,  VOSS, Matthew

IPC: H01F6/04

Abstract: A superconducting magnet (10) includes a cryogenic container (22, 32) containing a superconducting magnet winding (20). A sealed electrical feedthrough (36) passes through the cryogenic container. A contactor (40) inside the cryogenic container has an actuator (42) and feedthrough-side and magnet-side electrical terminals (46, 47). A high temperature superconductor (HTS) lead (60) also disposed in the cryogenic container has a first end (62) electrically connected with the magnet-side electrical terminal of the contactor and a second end (64) electrically connected to the superconducting magnet winding. A first stage thermal station (52) thermally connected with the first end of the HTS lead has a temperature (T1) lower than the critical temperature (TC,HTS) of the HTS lead. A second stage thermal station (54) thermally connected with the second end of the HTS lead has a temperature (T2) lower than a critical temperature (TC) of the superconducting magnet winding (20).

Abstract translation: 超导磁体（10）包括含有超导磁体绕组（20）的低温容器（22,32）。 密封的电馈通件（36）穿过低温容器。 低温容器内的接触器（40）具有致动器（42）以及馈通侧和磁体侧电端子（46,47）。 还设置在低温容器中的高温超导体（HTS）引线（60）具有与接触器的磁体侧电端子电连接的第一端部（62）和电连接到超导磁体绕组（60）的第二端部（64） 。 与HTS引线的第一端热连接的第一级热站（52）具有低于HTS引线的临界温度（TC，HTS）的温度（T1）。 与HTS引线的第二端热连接的第二级热站（54）具有低于超导磁体绕组（20）的临界温度（TC）的温度（T2）。

公开(公告)号：WO2022258493A1

公开(公告)日：2022-12-15

申请号：PCT/EP2022/065114

申请日：2022-06-02

Applicant: KONINKLIJKE PHILIPS N.V.

Inventor： FORTHMANN, Peter ,  MENTEUR, Philippe, Abel

IPC: H01F7/122 ,  H01F7/14 ,  H01F7/16 ,  H01F6/04 ,  F25D19/00 ,  G01R33/38 ,  G01R33/3815 ,  H01L39/16 ,  F01L9/21 ,  F16K31/06

Abstract: The invention relates to a system for controlling a superconducting coil (6) with a magnetic persistent current switch (7). The magnetic persistent current switch (7) is used for switching the superconducting coil (6) between a persistent mode and a ramp mode, respectively. The system further comprises a heat exchanger (10) configured to disperse heat to a cryocooler (3), a loop tube (13) configured to enable flow of coolant to transfer thermal energy generated by the magnetic persistent current switch (7) to the heat exchanger (10), and a thermal switch (9) comprising a valve (14) integrated with the loop tube (13) between the magnetic persistent current switch (7) and the heat exchanger (10), the valve (14) comprising a valve body (15) with and inlet (16) and an outlet (17) with which the valve body (15) is connected to the loop tube (13), a movable shaft (18) which is arranged inside the valve body (15) and which comprises a permanent rod magnet (19), a latching arrangement (20) which comprises a permanent magnet (21), and a solenoid (22), wherein the shaft (18) is movable between a closed position in which the shaft (18) effects the closing of the inlet (16) or the outlet (17) of the valve body (15) and therefore no flow of coolant through the valve body is allowed, and an open position in which the inlet (16) and the outlet (17) of the valve body (15) are open and therefore flow of coolant through the valve body (15) is allowed, the solenoid (22) is arranged relative to the shaft (18) in such a way that by applying a current pulse with a first polarity to the solenoid (22) the shaft (18) is moved to the closed position, and by applying a current pulse with a second polarity to the solenoid (22), the second polarity being opposite to the first polarity, the shaft (18) is moved to the open position, and the latching arrangement (20) is arranged relative to the shaft (18) in such a way that the magnetic force acting from the permanent magnet (21) of the latching arrangement (20) to the permanent magnet (19) of the shaft (18) forces the shaft (18) to stay in the closed position or in the open position, respectively, as long as no current pulse is applied to the solenoid (22) for switching the shaft (18) from the closed position to the open position or vice versa, respectively. In this way, a cooling system is provided that allows the temperature of the magnet persistent current switch (7) to rise and fall as desired within a short period of time, without straining the cooling system for the superconducting coil (7).

公开(公告)号：WO2020193415A1

公开(公告)日：2020-10-01

申请号：PCT/EP2020/057804

申请日：2020-03-20

Applicant: KONINKLIJKE PHILIPS N.V.

Inventor： VAN LANEN, Ezra, Petrus, Antonius ,  MENTEUR, Philippe, Abel ,  URBAHN, John, Arthur

IPC: H01F6/04 ,  F25D19/00 ,  G01R33/38 ,  H01L39/16

Abstract: A system (100) for controlling temperature of a persistent current switch (120) operating in a background magnetic field includes a heat exchanger (138), a loop tube (135), a ball valve (245) and multiple electromagnets (251, 252). The heat exchanger disperses heat to a cryocooler (106). The loop tube enables flow of coolant to convectively transfer thermal energy generated by the persistent current switch to the heat exchanger. The ball valve is integrated with the loop tube between the persistent current switch and the heat exchanger, and contains a ferromagnetic ball (250). The electromagnets are positioned outside the loop tube adjacent to the ball valve, where energizing a first electromagnet of the multiple electromagnets magnetically moves the ferromagnetic ball to a first position opening the loop tube and enabling the flow of the coolant, and energizing a second electromagnets magnetically moves the ferromagnetic ball to a second position closing the loop tube and blocking the flow of the coolant.