Magnetic structure and magnetic air-conditioning and heating device using same
First Claim
1. A magnetic structure comprising:
- a magnetocaloric material that changes in temperature due to application and removal of a magnetic field; and
a high heat conduction member that is in contact with the magnetocaloric material and has higher heat conductivity than the magnetocaloric material;
a high heat conduction wall in contact with each end portion of at least one of the magnetocaloric material and the high heat conduction member;
a heat insulation material covering outer surfaces of the magnetic structure other than a surface that transmits heat to another member among the outer surfaces of the magnetic structure; and
a casing further covering the heat insulation material,wherein the magnetocaloric material includes a plurality of hexagonal columns, the high heat conduction member has a honeycomb structure, and hexagonal holes of the honeycomb structure are filled with the magnetocaloric material, andwherein the high heat conduction wall has a higher heat conductivity than the magnetocaloric material.
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Accused Products
Abstract
A magnetic structure has a magnetocaloric material the temperature of which changes with application or removal of a magnetic field, and a high thermal conduction member which is in contact with the magnetocaloric material and has higher thermal conductivity than the magnetocaloric material. Further, this magnetic air-conditioning and heating device is provided with multiple of the aforementioned magnetic structures, a thermal switch which is arranged between magnetic structures and transmits or insulates heat, and a magnetic field varying unit which applies or removes a magnetic field to each of the magnetic structures. By providing in the magnetic structures a high thermal conduction member with higher thermal conductivity than the magnetocaloric material, some or all of the heat generated in the magnetocaloric material can be quickly conducted in the magnetic bodies.
53 Citations
5 Claims
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1. A magnetic structure comprising:
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a magnetocaloric material that changes in temperature due to application and removal of a magnetic field; and a high heat conduction member that is in contact with the magnetocaloric material and has higher heat conductivity than the magnetocaloric material; a high heat conduction wall in contact with each end portion of at least one of the magnetocaloric material and the high heat conduction member; a heat insulation material covering outer surfaces of the magnetic structure other than a surface that transmits heat to another member among the outer surfaces of the magnetic structure; and a casing further covering the heat insulation material, wherein the magnetocaloric material includes a plurality of hexagonal columns, the high heat conduction member has a honeycomb structure, and hexagonal holes of the honeycomb structure are filled with the magnetocaloric material, and wherein the high heat conduction wall has a higher heat conductivity than the magnetocaloric material. - View Dependent Claims (2, 3, 4)
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5. A magnetic structure comprising:
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a magnetocaloric material that changes in temperature due to application and removal of a magnetic field; a high heat conduction member that is in contact with the magnetocaloric material and has higher heat conductivity than the magnetocaloric material; a high heat conduction wall in contact with each end portion of at least one of the magnetocaloric material and the high heat conduction member; and a casing having a heat insulation property covering outer surfaces of the magnetic structure, other than a surface of the magnetic structure that transmits heat to another member among the outer surfaces of the magnetic structure, wherein the magnetocaloric material includes a plurality of hexagonal columns, the high heat conduction member has a honeycomb structure, and hexagonal holes of the honeycomb structure are filled with the magnetocaloric material, and wherein the high heat conduction wall has a higher heat conductivity than the magnetocaloric material.
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Specification