JP2013217583A - Low-pressure loss magnetic working material structure for magnetic refrigerator - Google Patents
Low-pressure loss magnetic working material structure for magnetic refrigerator Download PDFInfo
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- JP2013217583A JP2013217583A JP2012088920A JP2012088920A JP2013217583A JP 2013217583 A JP2013217583 A JP 2013217583A JP 2012088920 A JP2012088920 A JP 2012088920A JP 2012088920 A JP2012088920 A JP 2012088920A JP 2013217583 A JP2013217583 A JP 2013217583A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
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Abstract
Description
本発明は、磁気冷凍機用低圧損磁気作業物質構造に係り、特に磁気冷凍機用低圧損磁気作業物質構造に関するものである。 The present invention relates to a low pressure loss magnetic working material structure for a magnetic refrigerator, and more particularly to a low pressure loss magnetic working material structure for a magnetic refrigerator.
ガドリニウム（Ｇｄ）やランタン−鉄−シリコン系（Ｌａ−Ｆｅ−Ｓｉ）化合物などの磁気作業物質の磁気熱量効果を利用したＡＭＲ（Ａｃｔｉｖｅ Ｍａｇｎｅｔｉｃ Ｒｅｆｒｉｇｅｒａｔｉｏｎ）型磁気冷凍機においては、磁気作業物質と熱交換媒体の熱交換効率が冷凍能力に影響する。 In an AMR (Active Magnetic Refrigeration) type magnetic refrigerator utilizing the magnetocaloric effect of a magnetic working material such as gadolinium (Gd) or a lanthanum-iron-silicon-based (La-Fe-Si) compound, heat exchange with the magnetic working material is performed. The heat exchange efficiency of the medium affects the refrigeration capacity.
従来のＡＭＲ型磁気冷凍機では、ＡＭＲダクト内に球状の磁気作業物質が充填されており、このＡＭＲダクト内を水などの熱交換媒体が通過することにより冷凍能力を得ている。しかしながら、球状の磁気作業物質を用いると、圧損が大きくなり、熱交換媒体の流量が制限されてしまう。加えて磁気作業物質が球状であるため流路が均一にならず、熱交換媒体の偏流が起きて熱交換の効率が低下してしまうという問題があった。 In a conventional AMR type magnetic refrigerator, a spherical magnetic working material is filled in an AMR duct, and a refrigerating capacity is obtained by passing a heat exchange medium such as water through the AMR duct. However, when a spherical magnetic working material is used, the pressure loss increases and the flow rate of the heat exchange medium is limited. In addition, since the magnetic working material is spherical, there is a problem that the flow path is not uniform, and the heat exchange medium drifts and the efficiency of heat exchange decreases.
本発明は、上記状況に鑑みて、高い熱交換効率を維持しつつ、圧損も低減できる磁気冷凍機用低圧損磁気作業物質構造を提供することを目的とする。 In view of the above circumstances, an object of the present invention is to provide a low pressure loss magnetic working material structure for a magnetic refrigerator that can reduce pressure loss while maintaining high heat exchange efficiency.
本発明は、上記目的を達成するために、
〔１〕磁気冷凍機用低圧損磁気作業物質構造において、板状の磁気作業物質と、熱絶縁層を交互に積層し、その積層方向に垂直に熱交換媒体流路となる多数の穴を開けたハニカム構造を有することを特徴とする。
〔２〕上記〔１〕記載の磁気冷凍機用低圧損磁気作業物質構造において、前記板状の磁気作業物質が、ガドリニウム、ランタン系又はマンガン系であることを特徴とする。
In order to achieve the above object, the present invention provides
[1] In a low pressure loss magnetic working material structure for a magnetic refrigerator, a plate-like magnetic working material and a heat insulating layer are alternately laminated, and a number of holes serving as heat exchange medium flow paths are formed perpendicular to the laminating direction. It has a honeycomb structure.
[2] The low-pressure loss magnetic working material structure for a magnetic refrigerator as described in [1] above, wherein the plate-like magnetic working material is gadolinium, lanthanum or manganese.
〔３〕上記〔１〕又は〔２〕記載の磁気冷凍機用低圧損磁気作業物質構造において、前記熱絶縁層がポリイミドフィルムからなることを特徴とする。 [3] The low pressure loss magnetic working material structure for a magnetic refrigerator as described in [1] or [2] above, wherein the thermal insulating layer is made of a polyimide film.
本発明によれば、次のような効果を奏することができる。
（１）ハニカム構造により高い熱交換効率を維持しつつ、圧損も低減することができる磁気冷凍機用低圧損磁気作業物質構造を提供することができる。
（２）また、球状の磁気作業物質をランダムに充填した場合とは異なり、均質な構造であるので、熱交換媒体の偏流が起きることがない。
According to the present invention, the following effects can be achieved.
(1) It is possible to provide a low-pressure loss magnetic working material structure for a magnetic refrigerator that can reduce pressure loss while maintaining high heat exchange efficiency with a honeycomb structure.
(2) Further, unlike the case of randomly filling a spherical magnetic working substance, the heat exchange medium does not drift because of a homogeneous structure.
（３）ＡＭＲダクトは流れ方向に温度勾配を持つ必要があり、積層された熱絶縁体によって流れ方向の伝熱を低減することができる。 (3) The AMR duct needs to have a temperature gradient in the flow direction, and heat transfer in the flow direction can be reduced by the laminated thermal insulator.
本発明の磁気冷凍機用低圧損磁気作業物質構造は、板状の磁気作業物質と、熱絶縁層を交互に積層し、その積層方向に垂直に多数の穴を開けたハニカム構造を有する。 The low-pressure loss magnetic working material structure for a magnetic refrigerator of the present invention has a honeycomb structure in which plate-like magnetic working materials and heat insulating layers are alternately laminated and a large number of holes are formed perpendicular to the laminating direction.
以下、本発明の実施の形態について詳細に説明する。
図１は本発明の実施例を示す磁気冷凍機用低圧損磁気作業物質構造を示す斜視図である。
この図において、１は板状の磁気作業物質であり、ガドリニウム（Ｇｄ）、ランタン（Ｌａ）系もしくはマンガン（Ｍｎ）系からなる。２は板状の磁気作業物質１の間に配置される熱絶縁層であり、ポリイミドフィルムからなる。図示されるように、板状の磁気作業物質１と熱絶縁層２は交互に積層される。３は板状の磁気作業物質１と熱絶縁層２との積層方向に垂直に開けられた熱交換媒体流路となる多数の穴である。このように本発明の磁気冷凍機用低圧損磁気作業物質構造は、板状の磁気作業物質１と熱絶縁層２との積層方向に垂直に多数の穴３を開けたハニカム構造をしている。
Hereinafter, embodiments of the present invention will be described in detail.
FIG. 1 is a perspective view showing the structure of a low-pressure loss magnetic working material for a magnetic refrigerator showing an embodiment of the present invention.
In this figure, 1 is a plate-like magnetic working substance, which is made of gadolinium (Gd), lanthanum (La) or manganese (Mn). Reference numeral 2 denotes a heat insulating layer disposed between the plate-like magnetic working substances 1 and is made of a polyimide film. As shown in the figure, the plate-like magnetic working material 1 and the heat insulating layer 2 are alternately laminated.
したがって、本発明のハニカム構造の磁気作業物質構造によれば、
（１）ハニカム構造により高い熱交換効率を維持しつつ、圧損も低減することができる磁気冷凍機用低圧損磁気作業物質構造とすることができる。
（２）また、従来のように球状の磁気作業物質をランダムに充填した場合とは異なり、本発明の磁気冷凍機用低圧損磁気作業物質構造は、均質な構造であるので、熱交換媒体の偏流が起きることがない。
Therefore, according to the magnetic working material structure of the honeycomb structure of the present invention,
(1) A low pressure loss magnetic working material structure for a magnetic refrigerator capable of reducing pressure loss while maintaining high heat exchange efficiency due to the honeycomb structure.
(2) In addition, unlike the conventional case of randomly filling the spherical magnetic working material, the low-pressure loss magnetic working material structure for the magnetic refrigerator of the present invention is a homogeneous structure. No drift occurs.
（３）ＡＭＲダクトは流れ方向に温度勾配を持つ必要があるが、積層された熱絶縁体によって流れ方向の伝熱を低減することができる。
なお、本発明は上記実施例に限定されるものではなく、本発明の趣旨に基づき種々の変形が可能であり、これらを本発明の範囲から排除するものではない。
(3) The AMR duct needs to have a temperature gradient in the flow direction, but heat transfer in the flow direction can be reduced by the laminated thermal insulator.
In addition, this invention is not limited to the said Example, Based on the meaning of this invention, a various deformation | transformation is possible and these are not excluded from the scope of the present invention.
本発明の磁気冷凍機用低圧損磁気作業物質構造は、ハニカム構造により高い熱交換効率を維持しつつ、圧損も低減することができる磁気冷凍機用低圧損磁気作業物質構造として利用可能である。 The low-pressure loss magnetic working material structure for a magnetic refrigerator according to the present invention can be used as a low-pressure loss magnetic working material structure for a magnetic refrigerator capable of reducing pressure loss while maintaining high heat exchange efficiency due to the honeycomb structure.
１ 板状の磁気作業物質
２ 熱絶縁層
３ 熱交換媒体流路となる多数の穴
DESCRIPTION OF SYMBOLS 1 Plate-shaped magnetic working material 2
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| JP2012088920A JP2013217583A (en) | 2012-04-10 | 2012-04-10 | Low-pressure loss magnetic working material structure for magnetic refrigerator |
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| JP2012088920A JP2013217583A (en) | 2012-04-10 | 2012-04-10 | Low-pressure loss magnetic working material structure for magnetic refrigerator |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109269145A (en) * | 2018-10-15 | 2019-01-25 | 珠海格力电器股份有限公司 | Magnetic medium inner core assembly, cold storage bed and magnetic refrigerator |
| CN109282518A (en) * | 2018-11-19 | 2019-01-29 | 珠海格力电器股份有限公司 | Magnetic refrigerator, magnetic working medium bed and magnetic working medium assembly |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109269145A (en) * | 2018-10-15 | 2019-01-25 | 珠海格力电器股份有限公司 | Magnetic medium inner core assembly, cold storage bed and magnetic refrigerator |
| CN109269145B (en) * | 2018-10-15 | 2024-04-05 | 珠海格力电器股份有限公司 | Magnetic working medium inner core assembly, cold storage bed and magnetic refrigerator |
| CN109282518A (en) * | 2018-11-19 | 2019-01-29 | 珠海格力电器股份有限公司 | Magnetic refrigerator, magnetic working medium bed and magnetic working medium assembly |
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