# US 2019/0170408 A1 · Magnetocaloric cycle device and element bed for the same

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- Number: US 2019/0170408 A1
- Document ID: US20190170408A1
- Status: Published application
- Kind: A1
- Application number: 16/204,038
- Filed: 2018-11-29
- Published: 2019-06-06
- Earliest claimed: 2017-12-05
- Assignees: Denso Corporation
- Applicants: Denso Corporation
- Inventors: Kazuki IWAYA
- Web page: https://patentgrep.com/patent/US20190170408A1

## CPC

- F25B 21/00: Machines, plants or systems, using electric or magnetic effects
- H01F 1/015: {Metals or alloys}
- F25B 2321/002: by using magneto-caloric effects
- F25B 2321/0022: with a rotating or otherwise moving magnet
- H01F 1/012: {adapted for magnetic entropy change by magnetocaloric effect, e.g. used as magnetic refrigerating material (refrigeration systems using magnetic effects F25B21/00)}
- Y02B 30/00: Energy efficient heating, ventilation or air conditioning [HVAC]
- F25B: REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- H01F: MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- Y02B: CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS

## Abstract

A magnetocaloric effect element performs a magnetocaloric effect. The magnetocaloric effect element is accommodated in a container. The container has a container member which provides walls of the container. The container member is made of a nonmagnetic material. The container has a reinforcing member which is provided partially in the container and reinforces the container member. The container member is made of a magnetic material. The reinforcing member has a cross section that is vertically long with respect to the magnetic flux supplied to the magnetocaloric effect element.

## Claims

### Claim 1

An element bed for a magnetocaloric cycle device, comprising:
a magnetocaloric effect element performing a magnetocaloric effect; and
a container containing the magnetocaloric effect element, the container has a container member for providing walls of the container, and a reinforcing member disposed partially on the container member for reinforcing the container member.

### Claim 2 (depends on 1)

The element bed for a magnetocaloric cycle device claimed in claim 1, wherein the container member is made of a nonmagnetic material.

### Claim 3 (depends on 1)

The element bed for a magnetocaloric cycle device claimed in claim 1, wherein the reinforcing member is made of a magnetic material.

### Claim 4 (depends on 3)

The element bed for a magnetocaloric cycle device claimed in claim 3, wherein the reinforcing member has a vertically elongated cross section along a direction of a magnetic flux supplied to the magnetocaloric effect element.

### Claim 5 (depends on 1)

The element bed for a magnetocaloric cycle device claimed in claim 1, wherein the container member has an overlapping wall overlapping with the magnetocaloric effect element with respect to the direction of the magnetic flux supplied to the magnetocaloric effect element, and the reinforcing member is disposed at least on the overlapping wall.

### Claim 6 (depends on 1)

The element bed for a magnetocaloric cycle device claimed in claim 1, wherein the container member is a cylindrical member, and the overlapping wall is thinner than the other walls.

### Claim 7 (depends on 1)

The element bed for a magnetocaloric cycle device claimed in claim 1, wherein the reinforcing member has a plurality of reinforcing members that are separated from each other in the longitudinal direction.

### Claim 8 (depends on 1)

The element bed for a magnetocaloric cycle device claimed in claim 1, wherein the reinforcing member has an annular reinforcing member circumferentially surrounding the container member.

### Claim 9

A magnetocaloric cycle device comprising:
the element bed for a magnetocaloric cycle device claimed in claim a magnetic field modulation device for modulating a magnetic field applied to the magnetocaloric effect device; and
a heat transport device for generating a reciprocating flow of a heat transport medium that performs a heat exchange with the magnetocaloric effect device.

### Claim 10 (depends on 5)

A magnetocaloric cycle device comprising:
an element bed for a magnetocaloric cycle device claimed in claim 5;
a magnetic field modulation device for modulating a magnetic field applied to the magnetocaloric effect device; and
a heat transport device for generating a reciprocating flow of a heat transport medium that performs a heat exchange with the magnetocaloric effect device, further comprising:
a bed group in which the plurality of element beds are arranged along a circumferential direction, wherein the direction of the magnetic flux is a radial direction, the overlapping wall is an outer wall and an inner wall facing in a radial direction, and the plurality of element beds are arranged to face side walls other than the overlapping wall.