Magnetic cooling apparatus
First Claim
1. A magnetic cooling apparatus comprising:
- a plurality of magnetic regenerators comprising a plurality of magnetocaloric materials to emit heat when magnetized and to absorb heat when demagnetized, the plurality of magnetic regenerators being rotatably disposed on a circumference of a cylindrical rotation type magnetic regeneration member having a predetermined radius;
at least one coil disposed on the circumference of the cylindrical rotation type magnetic regeneration member and coupled to the plurality of magnetic regenerators; and
a plurality of permanent magnets provided inside and outside the circumference of the cylindrical rotation type magnetic regeneration member to generate a magnetic field to magnetize or demagnetize the plurality of magnetic regenerators, whereinthe at least one coil interacts with the magnetic field generated by the plurality of permanent magnets to rotate the plurality of magnetic regenerators.
1 Assignment
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Accused Products
Abstract
A magnetic cooling apparatus including a plurality of magnetic regenerators including a plurality of magnetocaloric materials to emit heat when magnetized and to absorb heat when demagnetized. The magnetic regenerators are rotatably disposed on a circumference having a predetermined radius, at least one coil is disposed on the circumference and coupled to the magnetic regenerators, and a plurality of permanent magnets is provided inside and outside the circumference to generate a magnetic field to magnetize or demagnetize the magnetic regenerators. The at least one coil interacts with the magnetic field generated by the permanent magnets to rotate the magnetic regenerators. The coil interacting with the magnetic field to magnetize or demagnetize the magnetic regenerators is coupled to the magnetic regenerators such that the magnetic regenerators reciprocate or rotate, thereby minimizing a size of the magnetic cooling apparatus, relative to the use of a motor. In addition, a member to switch a channel of a heat transfer fluid directly performs heat transfer between the heat transfer fluid and an external fluid, thereby minimizing heat loss.
15 Citations
17 Claims
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1. A magnetic cooling apparatus comprising:
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a plurality of magnetic regenerators comprising a plurality of magnetocaloric materials to emit heat when magnetized and to absorb heat when demagnetized, the plurality of magnetic regenerators being rotatably disposed on a circumference of a cylindrical rotation type magnetic regeneration member having a predetermined radius; at least one coil disposed on the circumference of the cylindrical rotation type magnetic regeneration member and coupled to the plurality of magnetic regenerators; and a plurality of permanent magnets provided inside and outside the circumference of the cylindrical rotation type magnetic regeneration member to generate a magnetic field to magnetize or demagnetize the plurality of magnetic regenerators, wherein the at least one coil interacts with the magnetic field generated by the plurality of permanent magnets to rotate the plurality of magnetic regenerators. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A magnetic cooling apparatus comprising:
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a magnetic field generation member configured to generate a static magnetic field; and a magnetic regeneration member having; a plurality of magnetic regenerators configured to move into the static magnetic field or out of the static magnetic field, and to emit heat energy when magnetized by the static magnetic field and to absorb heat energy when demagnetized; and a coil coupled to and configured to move with at least one of the plurality of magnetic regenerators and to generate a variable magnetic field, a direction of the variable magnetic field being changeable, wherein the at least one of the plurality of magnetic regenerators and the coil are moved by an interaction between the variable magnetic field and the static magnetic field. - View Dependent Claims (8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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Specification