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Magnetic refrigeration device and magnetic refrigeration system

A magnetic refrigeration and equipment technology, applied in refrigeration and liquefaction, refrigerators, lighting and heating equipment, etc., can solve problems such as high hydraulic loss and lower refrigeration efficiency

Inactive Publication Date: 2013-10-23
KK TOSHIBA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This can involve high hydraulic losses, reducing refrigeration efficiency

Method used

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  • Magnetic refrigeration device and magnetic refrigeration system
  • Magnetic refrigeration device and magnetic refrigeration system
  • Magnetic refrigeration device and magnetic refrigeration system

Examples

Experimental program
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Effect test

no. 1 example ）

[0043] figure 1 A magnetic refrigeration system according to a first embodiment is shown. The magnetic refrigeration system includes a magnetic refrigeration device 1 . The magnetic refrigeration device 1 has a structure in which a plurality of plate-shaped solid heat storage members 3 having a heat storage function and formed rigidly are arranged in parallel to each other. A solid thermal storage member 3 is provided as a fixed member. Spaces 4 are defined between respective adjacent pairs of solid heat storage members. The plate-shaped magnets 2 having a magnetocaloric effect and being flexible are provided in spaces 4 defined between respective adjacent pairs of solid heat storage members 3 and are arranged in parallel to each other. The magnet 2 is provided as a movable member. The magnet may be brought into thermal contact with the adjacent solid heat storage member 3 . Solid heat storage members 3 and magnets 2 are arranged alternately. Spacers 5 defining a space 4...

no. 2 example ）

[0065] refer to Figure 4 , a magnetic refrigeration system according to a second embodiment will be described. exist Figure 4 In the magnetic refrigeration system shown, each magnet 2 (movable member) in the magnetic refrigeration device 1 is held away from the corresponding one of the solid thermal storage members 3 and is attracted by a magnetic force applied by an external magnetic field. The force remains in contact with another solid thermal storage member 3 (fixed member). That is, the switching of the pair of magnetic members is achieved by the driving force based on the magnetic attraction force applied by the external magnetic field.

[0066] included in Figure 4 In the magnetic refrigeration device 1 in the magnetic refrigeration system of the shown second embodiment, the magnet 2 is constructed as a movable member. Application and removal of a magnetic field to and from the magnet 2 is achieved by moving the magnetic field applying units 6A and 6B, whereby th...

no. 3 example ）

[0068] refer to Figure 5 , a magnetic refrigeration system according to a third embodiment will be described. included in Figure 5 In the magnetic refrigeration device 1 in the magnetic refrigeration system shown, the force for driving the magnet 2 (movable member) is provided as an electrostatic force, thereby switching between two solid thermal storage members 3 with which the magnet 2 is in contact. Solid thermal storage member 3 (fixed member).

[0069] Figure 5 The unit structure of the magnetic refrigeration device 1 is shown. In this device, it is sufficient that the magnet 2 or the solid heat storage member 3 is provided as the movable member. exist Figure 5 In the second embodiment shown, the magnet 2 is provided as a movable member. A voltage for generating an electrostatic force therebetween is applied between the magnet 2 and each of the solid heat storage members 3A and 3B. The solid thermal storage members 3A and 3B are composed of an electrically cond...

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Abstract

In a magnetic refrigeration device, magnetic bodies having a magnetocaloric effect and solid heat accumulation members (3, 3A, 3B) having heat accumulation effect are arranged alternately with gaps (4) therebetween. Magnetic field apply units (6A, 6B) start and stop application of magnetic fields to the magnetic bodies. A contact mechanism brings each of the magnetic bodies into contact with one of the solid heat accumulation members (3, 3A, 3B) adjacent to the each magnetic body (2). Alternatively, the contact mechanism brings each of the solid heat accumulation members (3, 3A, 3B) into contact with one of the magnetic bodies adjacent to the each solid heat accumulation members (3, 3A, 3B).

Description

[0001] Cross References to Related Applications [0002] This application is based on and claims priority from Japanese Patent Application No. 2012-076718 filed on March 29, 2012, the entire contents of which are incorporated herein by reference. technical field [0003] Embodiments described herein relate generally to magnetic refrigeration devices and magnetic refrigeration systems. Background technique [0004] In recent years, there has been an increasing demand for magnetic refrigeration as a refrigeration technology with high refrigeration efficiency, and research and development of magnetic refrigeration technology for room temperature has now been intensified. [0005] As one of the magnetic refrigeration technologies, an active magnetic refrigeration (AMR) system has been proposed. In the AMR system, active use of configuration entropy considered as a hindrance to magnetic refrigeration at room temperature, and functions of performing magnetic refrigeration and acc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F25B21/00
CPCF25B2321/0022F25B21/00F25B2321/002Y02B30/66Y02B30/00
Inventor 富松师浩平冈俊郎真田恭八木亮介齐藤明子小林忠彦加治志织
Owner KK TOSHIBA
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