Cryocooler and magnetic shield structure of cryocooler
US-10731914-B2 · Aug 4, 2020 · US
Superconducting electromagnet device
US12300429B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-12300429-B2 |
| Application number | US-202017785401-A |
| Country | US |
| Kind code | B2 |
| Filing date | Mar 4, 2020 |
| Priority date | Mar 4, 2020 |
| Publication date | May 13, 2025 |
| Grant date | May 13, 2025 |
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- Title
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- Abstract
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Abstract
Official abstract text for this publication.
The superconducting electromagnet device includes a superconducting coil, a refrigerant container, a refrigerator, a heat exchanger, and a cooling cylinder. The refrigerant container accommodates refrigerant that cools the superconducting coil. The refrigerator includes a refrigeration stage. The heat exchanger is arranged inside the refrigerant container and connected to the refrigeration stage to cool refrigerant gas vaporized from the refrigerant. The cooling cylinder includes a bottom and a peripheral wall erected from an outer edge of the bottom, and is arranged inside the refrigerant container to surround the heat exchanger. The cooling cylinder is provided with an opening, through which the refrigerant gas flows, in the peripheral wall. The cooling cylinder stores liquid refrigerant recondensed by the heat exchanger on the bottom.
First claim
Opening claim text (preview).
The invention claimed is: 1. A superconducting electromagnet device comprising: a superconducting coil; a refrigerant container which accommodates refrigerant that cools the superconducting coil, the refrigerant container in direct contact with the refrigerant; a refrigerator having a refrigeration stage; a heat exchanger which is disposed inside the refrigerant container and connected to the refrigeration stage to cool refrigerant gas vaporized from liquid refrigerant; and a cooling cylinder which has a bottom and a peripheral wall erected from an outer edge of the bottom, and is arranged inside the refrigerant container to surround the heat exchanger, the cooling cylinder including at least an opening, through which the refrigerant gas flows, in the peripheral wall and storing the liquid refrigerant recondensed by the heat exchanger on the bottom wherein the at least an opening includes a plurality of openings at intervals along circumference of the peripheral wall. 2. The superconducting electromagnet device according to claim 1 , wherein the cooling cylinder is connected to one of the refrigeration stage and the heat exchanger. 3. The superconducting electromagnet device according to claim 1 , wherein the cooling cylinder is connected to the refrigerant container. 4. The superconducting electromagnet device according to claim 3 , wherein the refrigeration stage is disposed outside the refrigerant container, and the heat exchanger and the refrigeration stage are connected to each other by a connection conductor. 5. The superconducting electromagnet device according to claim 1 , wherein the heat exchanger has a fin extending toward the bottom, and a surface of the fin including a plurality of grooves. 6. The superconducting electromagnet device according to claim 1 , wherein the cooling cylinder has a fin on an outer peripheral surface of the peripheral wall. 7. The superconducting electromagnet device according to claim 2 , wherein the heat exchanger has a fin extending toward the bottom, and a plurality of grooves are on a surface of the fin. 8. The superconducting electromagnet device according to claim 3 , wherein the heat exchanger has a fin extending toward the bottom, and a plurality of grooves are on a surface of the fin. 9. The superconducting electromagnet device according to claim 4 , wherein the heat exchanger has a fin extending toward the bottom, and a plurality of grooves are on a surface of the fin. 10. The superconducting electromagnet device according to claim 2 , wherein the cooling cylinder has a fin on an outer peripheral surface of the peripheral wall. 11. The superconducting electromagnet device according to claim 3 , wherein the cooling cylinder has a fin on an outer peripheral surface of the peripheral wall. 12. The superconducting electromagnet device according to claim 4 , wherein the cooling cylinder has a fin on an outer peripheral surface of the peripheral wall. 13. The superconducting electromagnet device according to claim 5 , wherein the cooling cylinder has a fin on an outer peripheral surface of the peripheral wall. 14. The superconducting electromagnet device according to claim 7 , wherein the cooling cylinder has a fin on an outer peripheral surface of the peripheral wall. 15. The superconducting electromagnet device according to claim 8 , wherein the cooling cylinder has a fin on an outer peripheral surface of the peripheral wall. 16. The superconducting electromagnet device according to claim 9 , wherein the cooling cylinder has a fin on an outer peripheral surface of the peripheral wall.
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Frequently asked questions
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- What does patent US12300429B2 cover?
- The superconducting electromagnet device includes a superconducting coil, a refrigerant container, a refrigerator, a heat exchanger, and a cooling cylinder. The refrigerant container accommodates refrigerant that cools the superconducting coil. The refrigerator includes a refrigeration stage. The heat exchanger is arranged inside the refrigerant container and connected to the refrigeration stag…
- Who is the assignee on this patent?
- Canon Medical Systems Corp
- What technology area does this patent fall under?
- Primary CPC classification H01F6/04. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue May 13 2025 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 4 related publications on this page (citations in our corpus or others sharing the same primary CPC).