IP Library Granted Patent US 8,935,927
Granted Patent B2
US 8,935,927 · App. 13/079,451 · Granted Jan 20, 2015

Magnetic refrigerating device and magnetic refrigerating system

Inventors: Tadahiko Kobayashi (Kanagawa, JP); Akiko Saito (Kanagawa, JP); Shiori Kaji (Kanagawa, JP)
Assignee: Kabushiki Kaisha Toshiba
F25B21/00F25B2321/0022Y02B30/66
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Quick Facts
Patent No.
US 8,935,927
App. No.
13/079,451
Granted
Jan 20, 2015
Kind
B2
Abstract

The magnetic refrigerating device according to one embodiment includes a fixed container filled with a refrigerant, the fixed container including a magnetic material container that is filled with a magnetic material and that can move in the fixed container and an elastic member provided at the end of the magnetic material container. The magnetic refrigerating device also includes a magnetic-field applying/removing mechanism that is provided at the outside of the fixed container, and that can apply and remove a magnetic field to and from the magnetic material and can generate a magnetic torque to the magnetic material container in moving direction of the magnetic material container.

Claims (28)

1. A magnetic refrigerating device comprising:

a fixed container filled with a refrigerant, the fixed container including a magnetic material container filled with a magnetic material and being capable of moving in the fixed container and an elastic member provided at an end of the magnetic material container; and

a permanent magnet provided at outside of the fixed container, the permanent magnet configured to move in a moving direction of the magnetic material container, the permanent magnet configured to apply and remove a magnetic field to and from the magnetic material and to generate a magnetic torque in the moving direction of the magnetic material container,

wherein the magnetic material is filled in the magnetic material container so that the refrigerant and the magnetic material relatively move with a movement of the magnetic material container.

2. The device according to claim 1 , wherein the elastic member is a coil spring.

3. The device according to claim 1 , wherein the permanent magnet rotates about a rotation axis provided at the outside of the fixed container so that the permanent magnet becomes close to the fixed container and becomes away from the fixed container alternatively.

4. The device according to claim 1 , wherein the fixed container and the magnetic material container are made of a non-magnetic material.

5. The device according to claim 1 , further comprising:

a high-temperature-side heat exchange unit connected to one end of the fixed container; and

a low-temperature-side heat exchange unit connected to the other end of the fixed container.

6. The device according to claim 1 , wherein both ends of the magnetic material container are made of mesh-like partition plates.

7. A magnetic refrigerating device comprising:

a fixed container filled with a refrigerant, the fixed container including a magnetic material container filled with a magnetic material capable of moving in the fixed container and an elastic member provided at an end of the magnetic material container; and

a permanent magnet provided at outside of the fixed container, the permanent magnet configured to move in a moving direction of the magnetic material container, the permanent magnet configured to apply and remove a magnetic field to and from the magnetic material and to generate a magnetic torque in the moving direction of the magnetic material container,

wherein

the magnetic material is filled in the magnetic material container so that the refrigerant and the magnetic material relatively move with a movement of the magnetic material container,

wherein

a magnetic member is provided at an end of the magnetic material container.

8. A magnetic refrigerating device comprising:

a fixed container filled with a refrigerant, the fixed container including a magnetic material container filled with a magnetic material capable of moving in the fixed container and an elastic member provided at an end of the magnetic material container; and

an electromagnet provided at outside of the fixed container, the electromagnet configured to apply and remove a magnetic field to and from the magnetic material and to generate a magnetic torque in a moving direction of the magnetic material container,

wherein the magnetic material is filled in the magnetic material container so that the refrigerant and the magnetic material relatively move with a movement of the magnetic material container.

9. The device according to claim 8 , wherein both ends of the magnetic material container are made of mesh-like partition plates.

10. A magnetic refrigerating device comprising:

a fixed container filled with a refrigerant, the fixed container including a magnetic material container filled with a magnetic material capable of moving in the fixed container and an elastic member provided at an end of the magnetic material container; and

an electromagnet provided at outside of the fixed container, the electromagnet configured to apply and remove a magnetic field to and from the magnetic material and to generate a magnetic torque in a moving direction of the magnetic material container,

wherein the magnetic material is filled in the magnetic material container so that the refrigerant and the magnetic material relatively move with a movement of the magnetic material container,

wherein a magnetic member is provided at an end of the magnetic material container.

Assignments (2)
NUNC PRO TUNC ASSIGNMENT Recorded Feb 19, 2026
From: KABUSHIKI KAISHA TOSHIBA
To: NITERRA MATERIALS CO., LTD.
Reel/Frame 073843/0532 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jun 14, 2011
From: KOBAYASHI, TADAHIKO; SAITO, AKIKO; KAJI, SHIORI
To: KABUSHIKI KAISHA TOSHIBA
Reel/Frame 026435/0953 →
Priority Claims (1)
JP 2010-176336 · Aug 5, 2010 · national
Continuity (1)
Related Publication 20120031108A1 · Feb 9, 2012