Granted Patent
B2
US 12,695,014 · App. 17/796,762 · Granted Jul 28, 2026
Conductor and coolant schemes for spiral-grooved, stacked plate, non-insulated superconducting magnets
Inventors:
Brian Labombard (Belmont, MA); Robert Mumgaard (Boston, MA); William Beck (Alton Bay, NH); Jeffrey Doody (Melrose, MA); Rui Vieira (Billerica, MA); Richard C. Leccacorvi (Arlington, MA)
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Abstract
Schemes are described for conductor and coolant placement in stacked-plate superconducting magnets, including arranging coolant channels and conducting channels within the plates on opposing faces. If the two types of channels are aligned with one another across the plate stacks, the plates may be stacked such that the cooling channel in one plate is adjacent to the conducting channel of the neighboring plate. By stacking a number of these plates, therefore, cooling may be supplied to each conducting channel through the cooling channels of each neighboring plate. Moreover, by aligning the two types of channels, the stacks of plates may have improved mechanical strength because mechanical load paths through the entire stack that do not pass through any of the channels may be created. This arrangement of channels may produce a very strong stack of plates that can withstand high Lorentz loads.
Claims (42)
1 . A magnet comprising:
a plurality of plates arranged in a stack that includes a first plate and a second plate,
the first plate comprising:
a conducting channel on a first side of the first plate, at least part of the conducting channel being arranged in a spiral path, the conducting channel comprising a high temperature superconductor (HTS) material and a conductive material; and
a first plurality of cooling channels on a second side of the first plate, the second side opposing the first side; and
the second plate comprising a second plurality of cooling channels,
wherein the first and second plates are arranged next to one another in the stack such that the second plurality of cooling channels are adjacent to the conductive material in the conducting channel of the first plate.
2 . The magnet of claim 1 , wherein the conductive material is arranged over the HTS material.
3 . The magnet of claim 2 , wherein the conductive material arranged over the HTS material has an upper surface that is flush with the first side of the first plate.
4 . The magnet of claim 1 , wherein at least part of each of the first plurality of cooling channels is aligned with the spiral path of the at least part of the conducting channel.
5 . The magnet of claim 1 , further comprising at least one bolt coupling the first plate to the second plate.
6 . The magnet of claim 1 , further comprising a plurality of instances of the first plate and a plurality of instances of the second plate arranged in the stack, wherein the plurality of the plates in the stack alternate between the instances of the first plate and the instances of the second plate.
7 . The magnet of claim 1 , further comprising a cooling inlet coupled to first ends of the first and second plurality of cooling channels and a cooling outlet coupled to second ends of the first and second plurality of cooling channels.
8 . The magnet of claim 1 , further comprising an insulating material arranged between the first plate and the second plate such that the first plate and second plate both contact the insulating material.
9 . The magnet of claim 8 , wherein the insulating material covers a portion of an interface between the first plate and the second plate so that at least part of the first plate directly contacts the second plate.
10 . The magnet of claim 1 , wherein the spiral path is a racetrack spiral.
11 . The magnet of claim 1 , wherein the first plate is formed from a first material in which the first plurality of cooling channels and the conducting channel are formed, and wherein the first material comprises steel.
12 . The magnet of claim 1 , wherein the HTS material comprises a stack of HTS tapes.
13 . The magnet of claim 12 , wherein each HTS tape of the stack of HTS tapes comprises a rare earth barium copper oxide (REBCO) material wrapped in copper cladding.
14 . The magnet of claim 1 , wherein the first plate further comprises a Pb and/or Sn solder between the HTS material and the conductive material.
15 . The magnet of claim 1 , wherein the conductive material arranged over the HTS material comprises copper.
16 . A magnet comprising:
a plurality of plates arranged in a stack that includes a first plate, the first plate comprising:
a conducting channel on a first side of the first plate, at least part of the conducting channel being arranged in a spiral path, the conducting channel comprising a high temperature superconductor (HTS) material and a conductive material; and
a plurality of cooling channels formed by concave regions of the HTS material and/or conductive material within the conducting channel.
17 . The magnet of claim 16 , wherein the plurality of plates comprises a second plate, a first side of the second plate being arranged adjacent to the first side of the first plate, thereby bounding the plurality of cooling channels of the first plate.
18 . The magnet of claim 17 , wherein the first side of the second plate is planar.
19 . The magnet of claim 17 , wherein the plurality of cooling channels of the first plate is a first plurality of cooling channels, and wherein the first side of the second plate comprises a second plurality of cooling channels aligned with the first plurality of cooling channels.
20 . The magnet of claim 19 , wherein the conducting channel of the first plate is a first conducting channel, and wherein the second plate comprises a second conducting channel, the second plurality of cooling channels being formed by concave regions of HTS and/or conductive material within the second conducting channel.
21 . The magnet of claim 19 , further comprising a cooling inlet coupled to first ends of the first and second plurality of cooling channels and a cooling outlet coupled to second ends of the first and second plurality of cooling channels.
22 . The magnet of claim 17 , further comprising at least one bolt coupling the first plate to the second plate.
23 . The magnet of claim 17 , comprising a plurality of instances of the first plate and a plurality of instances of the second plate arranged in the stack, wherein the plurality of the plates in the stack alternate between the instances of the first plate and the instances of the second plate.
24 . The magnet of claim 17 , further comprising an insulating material arranged between the first plate and the second plate such that the first plate and second plate both contact the insulating material.
25 . The magnet of claim 24 , wherein the insulating material covers a portion of an interface between the first plate and the second plate so that at least part of the first plate directly contacts the second plate.
26 . The magnet of claim 16 , wherein at least part of each of the plurality of cooling channels is aligned with the spiral path of the at least part of the conducting channel.
27 . The magnet of claim 16 , wherein the spiral path is a racetrack spiral.
28 . The magnet of claim 16 , wherein the first plate is formed from a first material in which the conducting channel is formed, and wherein the first material comprises steel.
29 . The magnet of claim 16 , wherein the HTS material comprises a stack of HTS tapes.
30 . The magnet of claim 29 , wherein each HTS tape of the stack of HTS tapes comprises a rare earth barium copper oxide (REBCO) material wrapped in copper cladding.
31 . The magnet of claim 16 , wherein the first plate further comprises a Pb and/or Sn solder between the HTS material and the conductive material.
32 . The magnet of claim 16 , wherein the conductive material is arranged over the HTS material and wherein the plurality of cooling channels are formed within the conductive material.
33 . The magnet of claim 16 , wherein the conductive material comprises copper.
Assignments (4)
ASSIGNMENT OF ASSIGNOR'S INTEREST
Recorded Apr 25, 2024
From: VIEIRA, RUI; LECCACORVI, RICHARD C.
To: MASSACHUSETTS INSTITUTE OF TECHNOLOGY
Reel/Frame 067224/0521 →
ASSIGNMENT OF ASSIGNOR'S INTEREST
Recorded Aug 10, 2022
From: MUMGAARD, ROBERT
To: COMMONWEALTH FUSION SYSTEMS LLC
Reel/Frame 060775/0442 →
ASSIGNMENT OF ASSIGNOR'S INTEREST
Recorded Aug 3, 2022
From: LABOMBARD, BRIAN; BECK, WILLIAM; DOODY, JEFFREY
To: MASSACHUSETTS INSTITUTE OF TECHNOLOGY
Reel/Frame 060706/0371 →
ASSIGNMENT OF ASSIGNOR'S INTEREST
Recorded Aug 3, 2022
From: LABOMBARD, BRIAN; BECK, WILLIAM; DOODY, JEFFREY
To: MASSACHUSETTS INSTITUTE OF TECHNOLOGY
Reel/Frame 060706/0404 →
Continuity (3)
Provisional Application
63000393
· Mar 26, 2020
Provisional Application
63027540
· May 20, 2020
Related Publication
20230073419A1
· Mar 9, 2023
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