Magnetic refrigerating device and magnetic refrigerating method
First Claim
1. A magnetic refrigerating device, comprising:
- a magnetic refrigerating unit including a magnetic material “
A”
exhibiting a magneto-caloric effect that the temperature of said material “
A”
is increased by the application of a magnetic field and the temperature of said material “
A”
is decreased by the removal of a magnetic field, a magnetic material “
B”
exhibiting a magneto-caloric effect that the temperature of said material “
B”
is decreased by the application of a magnetic field and the temperature of said material “
B”
is increased by the removal of a magnetic field, a heat conductive material “
a”
exhibiting higher heat conductivity under the application of a magnetic field and lower heat conductivity under the removal of a magnetic field, and a heat conductive material “
b”
exhibiting lower heat conductivity under the application of a magnetic field and higher heat conductivity under the removal of a magnetic field, wherein said magnetic refrigerating unit is configured so as to include at least one layered structure denoted by “
AaBb”
which is formed by subsequently stacking said materials “
A”
, “
a”
, “
B”
, “
b”
or at least one layered structure denoted by “
AbBa”
which is formed by subsequently stacking said materials “
A”
, “
b”
, “
B”
, “
a”
; and
a magnetic field-applying means to apply a magnetic field to said magnetic refrigerating unit.
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Accused Products
Abstract
A magnetic refrigerating device includes: a magnetic refrigerating unit including a magnetic material “A” exhibiting a magneto-caloric effect that the temperature of the material “A” is increased by the application of a magnetic field and the temperature of the material “A” is decreased by the removal of a magnetic field, a magnetic material “B” exhibiting a magneto-caloric effect that the temperature of the material “B” is decreased by the application of a magnetic field and the temperature of the material “B” is increased by the removal of a magnetic field, a heat conductive material “a” exhibiting higher heat conductivity under the application of a magnetic field and lower heat conductivity under the removal of a magnetic field, and a heat conductive material “b” exhibiting lower heat conductivity under the application of a magnetic field and higher heat conductivity under the removal of a magnetic field, wherein the magnetic refrigerating unit is configured so as to include at least one layered structure denoted by “AaBb” or “AbBa”; and a magnetic field-applying means to apply a magnetic field to the magnetic refrigerating unit.
115 Citations
20 Claims
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1. A magnetic refrigerating device, comprising:
-
a magnetic refrigerating unit including a magnetic material “
A”
exhibiting a magneto-caloric effect that the temperature of said material “
A”
is increased by the application of a magnetic field and the temperature of said material “
A”
is decreased by the removal of a magnetic field, a magnetic material “
B”
exhibiting a magneto-caloric effect that the temperature of said material “
B”
is decreased by the application of a magnetic field and the temperature of said material “
B”
is increased by the removal of a magnetic field, a heat conductive material “
a”
exhibiting higher heat conductivity under the application of a magnetic field and lower heat conductivity under the removal of a magnetic field, and a heat conductive material “
b”
exhibiting lower heat conductivity under the application of a magnetic field and higher heat conductivity under the removal of a magnetic field, wherein said magnetic refrigerating unit is configured so as to include at least one layered structure denoted by “
AaBb”
which is formed by subsequently stacking said materials “
A”
, “
a”
, “
B”
, “
b”
or at least one layered structure denoted by “
AbBa”
which is formed by subsequently stacking said materials “
A”
, “
b”
, “
B”
, “
a”
; anda magnetic field-applying means to apply a magnetic field to said magnetic refrigerating unit. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
-
-
13. A magnetic refrigerating method, comprising:
-
applying a first magnetic field with a first intensity to a magnetic refrigerating unit including a magnetic material “
A”
exhibiting a magneto-caloric effect that the temperature of said material “
A”
is increased by the application of a magnetic field and the temperature of said material “
A”
is decreased by the removal of a magnetic field, a magnetic material “
B”
exhibiting a magneto-caloric effect that the temperature of said material “
B”
is decreased by the application of a magnetic field and the temperature of said material “
B”
is increased by the removal of a magnetic field, a heat conductive material “
a”
exhibiting higher heat conductivity under the application of a magnetic field and lower heat conductivity under the removal of a magnetic field, and a heat conductive material “
b”
exhibiting lower heat conductivity under the application of a magnetic field and higher heat conductivity under the removal of a magnetic field, wherein said magnetic refrigerating unit is configured so as to include at least one layered structure denoted by “
AaBb”
which is formed by subsequently stacking said materials “
A”
, “
a”
, “
B”
, “
b”
or at least one layered structure denoted by “
AbBa”
which is formed by subsequently stacking said materials “
A”
, “
b”
, “
B”
, “
a”
; andapplying a second magnetic field with a second intensity smaller than said first intensity to said magnetic refrigerating unit, wherein the thus generated heat is transferred from one end to the other end of said magnetic refrigerating unit. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20)
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Specification