公开(公告)号：US20240200834A1

公开(公告)日：2024-06-20

申请号：US18068544

申请日：2022-12-20

申请人： Mitsubishi Electric Research Laboratories, Inc. ,  Mitsubishi Electric Corporation

发明人： Chungwei Lin ,  Bingnan Wang ,  William Vetterling ,  Shun Tonooka ,  Atsushi Ogasahara

IPC分类号： F25B21/02

CPC分类号： F25B21/02 ,  F25B2321/002

摘要： A system for magnetic refrigeration is provided. The system includes a layered structure formed by a sequence of a plurality of magnetocaloric material (MCM) components interlinked with a sequence of a plurality of Peltier modules. Each Peltier module of the plurality of Peltier modules is sandwiched between two MCM components of the plurality of MCM components. The system further includes a power source configured to concurrently power each Peltier module in the sequence of the plurality of Peltier modules. Current in each powered Peltier module flows in a constant direction. The system further includes a magnetic source configured to apply spatially uniform magnetic field to the sequence of the plurality of MCM components.

公开(公告)号：US11747054B2

公开(公告)日：2023-09-05

申请号：US17923602

申请日：2020-05-14

申请人： Mitsubishi Electric Corporation

发明人： Tetsuya Matsuda ,  Shun Tonooka ,  Atsushi Ogasahara

IPC分类号： F25B21/00

CPC分类号： F25B21/00 ,  F25B2321/0023

摘要： A magnetic refrigerator including an electromagnet for magnetic refrigeration. The electromagnet for magnetic refrigeration includes: a return yoke; at least one pair of opposite magnetic poles disposed inside the return yoke and spaced from each other by a gap; a pipe disposed in the gap to pass a heat transport medium therethrough; a magnetocaloric member disposed inside the pipe to exchange heat with the heat transport medium; and a coil to surround at least one of the paired opposite magnetic poles to generate a magnetic flux passing across the gap when the coil is energized.

公开(公告)号：US12106899B2

公开(公告)日：2024-10-01

申请号：US18283828

申请日：2021-04-01

申请人： Mitsubishi Electric Corporation

发明人： Atsushi Ogasahara ,  Shun Tonooka ,  Masaru Shinozaki

IPC分类号： H01F7/06 ,  F25B21/00

CPC分类号： H01F7/064 ,  F25B21/00 ,  F25B2321/0022 ,  F25B2321/0023

摘要： A magnetic field application device applying a magnetic field to a magnetocaloric material includes: a magnetic field generating component; a first yoke connected to both poles of the magnetic field generating component; and a second yoke movably disposed between a first position and a second position. A first closed magnetic circuit formed by the magnetic field generating component and the first yoke passes through a magnetic field application region in which the magnetocaloric material is accommodated. A second closed magnetic circuit formed by the magnetic field generating component, the first yoke, and the second yoke bypasses the magnetic field application region. Magnetic resistance of the second closed magnetic circuit when the second yoke is located at the second position is smaller than the magnetic resistance of the second closed magnetic circuit when the second yoke is located at the first position.

公开(公告)号：US11982472B2

公开(公告)日：2024-05-14

申请号：US17927744

申请日：2020-07-17

申请人： Mitsubishi Electric Corporation

发明人： Atsushi Ogasahara ,  Shun Tonooka ,  Tetsuya Matsuda

IPC分类号： F25B21/00

CPC分类号： F25B21/00 ,  F25B2321/002

摘要： A magnetic refrigeration device includes a magnetic heat container, a magnetic field generation device, a high temperature-side heat exchanger, a low temperature-side heat exchanger, and a pump. The magnetic heat container is filled with a magneto-caloric material. The pump is capable of transporting a heat transport medium in a reciprocable manner between the high temperature-side heat exchanger and the low temperature-side heat exchanger via the magnetic heat container. The magnetic heat container has a spiral shape extending in a spiral on an identical plane and allows the heat transport medium transported by the pump to flow along the spiral shape.