JP6089663B2 - Magnetic air conditioner - Google Patents

Description

  The present invention relates to a magnetic air conditioner, and more particularly to a magnetic air conditioner that can efficiently extract heat generated in the magnetic air conditioner to the outside.

  Most of refrigerators such as refrigerators, freezers, and air conditioners that are conventionally used at room temperature range use the phase change of a gaseous refrigerant such as chlorofluorocarbon gas or alternative chlorofluorocarbon gas. Recently, the problem of ozone depletion due to the emission of chlorofluorocarbons has been exposed, and there is also concern about the impact on global warming caused by the emission of alternative chlorofluorocarbons. For this reason, there is a strong demand for the development of an innovative refrigerator that is clean and has a high heat transport capability, replacing the refrigerator that uses a gaseous refrigerant such as CFC and CFC.

  Against this background, the refrigeration technology that has recently attracted attention is the magnetic refrigeration technology. Some magnetic materials exhibit a so-called magnetocaloric effect that changes their temperature according to the change of the magnitude of the magnetic field applied to the magnetic material. A refrigeration technique that transports heat using a magnetic material that exhibits this magnetocaloric effect is a magnetic refrigeration technique.

  As a refrigerator using the magnetic refrigeration technology, for example, there is a magnetic refrigerator that transports heat by utilizing the heat conduction of a solid substance as described in Patent Document 1 below. This magnetic refrigerator conducts heat by the following configuration.

  A plurality of positive magnetic bodies that increase in temperature when magnetism is applied and negative magnetic bodies that decrease in temperature when magnetism is applied are alternately arranged in one direction at predetermined intervals. One magnetic body block is formed by a pair of positive and negative magnetic bodies. A plurality of magnetic blocks arranged in one direction are arranged in a ring shape to form a magnetic unit. Permanent magnets are arranged on a hub-like rotating body that is concentric with the magnetic body unit and has substantially the same inner diameter and outer diameter to form a magnetic unit. A heat conducting member for inserting and removing between the positive and negative magnetic bodies is disposed so as to be slidable between the positive and negative magnetic bodies.

  The magnetic unit in which the permanent magnet is disposed is disposed so as to face the magnetic body unit, and is rotated relative to the magnetic body unit. The heat conducting member inserted / removed between the positive / negative magnetic bodies is rotated relative to the magnetic body unit. Magnetism is simultaneously applied to and removed from the positive and negative magnetic bodies by the rotation of the magnetic unit. Further, the heat conducting member is inserted into and removed from the positive and negative magnetic bodies arranged in the rotation direction. By rotating the permanent magnet and the heat conducting member, the heat generated by the magnetic body due to the magnetocaloric effect is transported through the heat conducting member in one direction in which the magnetic body is disposed.

JP 2007-147209 A

  However, the magnetic refrigerator described in Patent Document 1 discloses a configuration for transporting heat in one direction using heat conduction of a solid substance, but is a specific for efficiently generating heat. Neither a specific configuration nor a specific configuration for taking out the transported heat is disclosed. The magnetic refrigerator needs to be configured to efficiently generate heat and efficiently extract the transported heat to the outside. If no effort is made to generate heat efficiently and the transported heat cannot be taken out efficiently, heat will be generated in the magnetic refrigerator and the thermal efficiency of the magnetic refrigerator will be significantly reduced.

  The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a magnetic air conditioner that can efficiently extract the heat generated in the magnetic air conditioner to the outside.

  In order to achieve the above object, a magnetic air conditioner according to the present invention includes a hollow heat generating disk having a magnetocaloric material and a heat switch, and a hollow heat generating disk having a magnetic field applying unit that applies a magnetic field to the magnetocaloric material. A magnetic cooling and heating device that transports heat in a direction crossing the rotational direction by laminating a plurality of magnetic field application disks alternately and relatively rotating at least one of the heat generation disk and the magnetic field application disk.

  The magnetic air conditioner includes an outer peripheral refrigerant passage, a series connection passage, and an outer peripheral fan. The outer peripheral refrigerant passage is formed along the outer periphery of the pair of heat generating disks and the magnetic field application disk. Since heat is transported from the inner peripheral side toward the outer peripheral side of the heat generating disk, the outer peripheral portion has a temperature different from the ambient temperature. The serial connection passage connects arbitrary peripheral refrigerant passages of the plurality of peripheral refrigerant passages in series. The outer peripheral fan is attached to the outer periphery of at least one of the rotating heat generating disk and the magnetic field applying disk in order to flow the refrigerant in the plurality of outer peripheral refrigerant passages in the rotation direction of the heat generating disk or the magnetic field applying disk. The heat transported to the outer peripheral portion of the heat generating disk is transferred to the refrigerant flowing by the outer peripheral fan and transported to the outside.

  According to the magnetic air conditioner according to the present invention having the above-described configuration, the refrigerant is rotated in the outer refrigerant passage by the outer fan attached to the outer circumference of at least one of the rotating heat generating disk and the magnetic field applying disk. Flow in the direction. The refrigerant flows through the plurality of outer peripheral refrigerant passages in series via the serial connection passage, and absorbs the heat transported to the outer peripheral portion of the heat generating disk. For this reason, the heat produced | generated in the magnetic air conditioning apparatus can be taken out outside efficiently.

It is an external view of the magnetic air conditioning apparatus which concerns on Embodiment 1. FIG. It is a schematic diagram of the behavior of the air which flows through the outer periphery refrigerant path and the inner periphery refrigerant path of the magnetic air conditioning apparatus which concerns on Embodiment 1. FIG. It is AA sectional drawing of FIG. It is a block diagram of the magnetic field application disk of FIG. FIG. 4 is a configuration diagram of the heat generation disk of FIG. 3. It is a block diagram of the outer periphery fan and outer periphery refrigerant path which are provided in the outer peripheral part of the magnetic field application disk of FIG. It is a block diagram of the swirl | vortex flow production | generation blade provided in the inner peripheral part of the heat generation disk of FIG. It is a figure which shows the temperature change of the air in the magnetic air-conditioning apparatus which concerns on Embodiment 1, and changes the capability to carry heat while heading from the air inflow port at the time of flowing air like FIG. It is a schematic diagram of the behavior different from FIG. 2 of the air which flows through the outer periphery refrigerant path and the inner periphery refrigerant path of FIG. It is a figure which shows the temperature change of the air in the magnetic air-conditioning apparatus which concerns on Embodiment 1, and the ability to carry heat while heading from the air inflow port at the time of flowing air like FIG. It is a block diagram of the outer periphery fan and outer periphery refrigerant path which are provided in the outer peripheral part of the magnetic field application disk of FIG. It is sectional drawing of the magnetic air conditioning apparatus which concerns on Embodiment 2. FIG. It is a schematic diagram of the behavior of the air which flows through the outer periphery refrigerant path and the inner periphery refrigerant path of the magnetic air conditioning apparatus which concerns on Embodiment 2. FIG. It is a figure which shows the temperature change of the air between the air inflow port of the magnetic air conditioning apparatus which concerns on Embodiment 2 toward an air outflow port. It is a figure which shows arrangement | positioning of the magnetocaloric material in the heat generating disk of FIG. It is BB sectional drawing of FIG. It is a figure where it uses for description of the operating temperature range of the magnetocaloric material in the heat generating disk which concerns on Embodiment 2. FIG. It is a figure which shows the combination of the operating temperature range of the magnetocaloric material in each laminated | stacked heat generation disk. It is a figure which shows the kind of operating temperature of the magnetocaloric material used for the magnetic air conditioning apparatus which concerns on Embodiment 2. FIG. It is a figure which shows the circulation system of the air of the magnetic air conditioning apparatus which concerns on Embodiment 3. It is a block diagram of the control system of the magnetic air conditioning apparatus which concerns on Embodiment 3. It is a block diagram of the more concrete control system of the air-conditioning information input part of FIG. It is an operation | movement flowchart of the magnetic air conditioning apparatus of FIG.

  Below, the embodiment of the magnetic air conditioning apparatus which concerns on this invention is divided into [Embodiment 1] to [Embodiment 3], and is demonstrated.

Embodiment 1
FIG. 1 is an external view of a magnetic air conditioner according to the first embodiment. As shown in the figure, the magnetic cooling / heating device 100 has a cylindrical outer shape.

  The outer peripheral refrigerant passages 200A, 200B, 200C,..., 200H, 200I are formed on the outer peripheral portion of the magnetic cooling / heating device 100 so as to be laminated independently. The outer peripheral refrigerant passages 200A, 200B, 200C,..., 200H, 200I are formed along the outer periphery of one set of heat generating disk and magnetic field application disk (described later), although not shown in FIG. The outer refrigerant passage 200A is provided with an air inlet 210IN used as a refrigerant, and the outer refrigerant passage 200I is provided with an air outlet 210OUT.

  The peripheral refrigerant passages 200A and 200B are connected by a serial connection passage 220A. The serial connection passage 220A is a passage for supplying the air flowing through the outer refrigerant passage 200A to the outer refrigerant passage 200B. Further, the outer peripheral refrigerant passages 200B and 200C are connected by a serial connection passage 220B. Similarly, the outer peripheral refrigerant passages 200C-200I also connect the outer peripheral refrigerant passages adjacent to each other on the upper side in the stacking direction by serial connection passages 220C-220H.

  All the outer peripheral refrigerant passages 200A-200I are connected by serial connection passages 220A-220H. The air flowing in from the inlet 210IN passes through the outer refrigerant passage 200A, the series connection passage 220A, the outer refrigerant passage 200B,..., The outer refrigerant passage 200H, the series connection passage 220H, and the outer refrigerant passage 200I and flows out from the outlet 210OUT. .

  That is, the inflow port 210IN to the outflow port 210OUT are connected by all the outer peripheral refrigerant passages 200A-200I connected in series by the serial connection passages 220A-220H. Therefore, the air flowing in from the inlet 210IN flows out from the outlet 210OUT through all the passages.

  In the above example, all the outer peripheral refrigerant passages are connected by the serial connection passage. However, the serial connection passage may be configured to connect arbitrary outer peripheral refrigerant passages among the plurality of outer peripheral refrigerant passages in series. good. In this case, air inlets and outlets are independently attached to the peripheral refrigerant passages that are not connected in series. Moreover, although air is illustrated as a refrigerant | coolant in Embodiment 1, as long as it is excellent in a heat transfer characteristic, you may use gaseous refrigerant | coolants or liquid refrigerants other than air.

  An outer rotor motor 300 is attached to the central portion of the magnetic air conditioner 100. A cylindrical rotor 310 is attached to the outer periphery of the outer rotor motor 300. In the region between the outer periphery of the rotor 310 and a part away from the outer periphery by a certain distance, an inner peripheral refrigerant passage 320 is formed along the outer periphery of the rotor 310 in the vertical direction through the magnetic cooling / heating device 100. An air inlet 330IN used as a refrigerant is provided on the lower side of the inner peripheral refrigerant passage 320 in the drawing, and an air outlet 330OUT is provided on the upper side of the inner peripheral refrigerant passage 320 in the drawing.

  The inner peripheral refrigerant passage 320 is a passage extending in a straight line formed between cylinders when concentric cylinders having different diameters are arranged concentrically. In the passage, the air flowing in from the inlet 330IN flows out from the outlet 330OUT while rotating spirally. The inner circumferential refrigerant passage 320 is specially devised for rotating the air in a spiral manner (described later).

  Therefore, the behavior image of the air flowing through the outer peripheral refrigerant passages 200A-200I and the inner peripheral refrigerant passage 320 can be expressed as shown in FIG. FIG. 2 is a schematic diagram of the behavior of air flowing through the outer peripheral refrigerant passages 200A to 200I and the inner peripheral refrigerant passage 320 of the magnetic cooling and heating apparatus 100 according to the first embodiment.

  The air flowing in from the inlet 210IN of the outer refrigerant passage 200A flows from the bottom to the top while turning around the outer periphery of the magnetic air conditioner 100, as shown by the solid line in FIG. 2, to the outlet 210OUT of the outer refrigerant passage 200I. Further, the air flowing in from the inlet 330IN of the inner peripheral refrigerant passage 320 is swung along the outer periphery of the rotor 310 to the upper outlet 330OUT of the inner peripheral refrigerant passage 320 as shown by the dotted line in FIG. It flows in a spiral toward.

  3 is a cross-sectional view taken along the line AA in FIG. As shown in the figure, the magnetic cooling / heating device 100 has outer peripheral refrigerant passages 200A,..., 200H, 200I formed on the outer peripheral portion thereof. In addition, an outer rotor motor 300 is attached to the central portion of the magnetic air conditioner 100. A cylindrical rotor 310 is attached to the outer periphery of the outer rotor motor 300. The rotor 310 is rotated in the direction indicated by the arrow by the outer rotor motor 300.

  The rotor 310 is fitted with hollow magnetic field application disks 400A, 400B,..., 400H, 400I each having a magnetic field application unit that applies a magnetic field to the magnetocaloric material. The magnetic field application unit is formed on both the front and back surfaces of the magnetic field application disks 400A, 400B,..., 400H, 400I. The outer peripheral surface of the rotor 300 and the inner peripheral surfaces of the magnetic field application disks 400A, 400B,..., 400H, 400I are firmly fitted. Therefore, when the rotor 310 is rotated by the outer rotor motor 300, the magnetic field application disks 400A, 400B,..., 400H, 400I also rotate at the same time.

  On the outer periphery of the magnetic field application disks 400A, 400B,..., 400H, 400I fitted to the rotor 310, outer peripheral refrigerant passages 200A,..., 200H provided independently for the respective magnetic field application disks 400A,. , 405H, 405I (described later) are provided so as to face 200I. The outer peripheral fans 405A,..., 405H, 405I circulate air through the outer peripheral refrigerant passages 200A,. When the magnetic field application disks 400A, 400B,..., 400H, 400I rotate, the air flowing from the inlet 210IN of the outer refrigerant passage 200A flows in the outer refrigerant passages 200A,. It flows out to the outlet 210OUT of 200I.

  In addition, an inner peripheral refrigerant passage 320 is formed along the inner periphery of the inner periphery of the magnetic field application disks 400A, 400B,..., 400H, 400I. An inner peripheral fan (described later) is provided at the inner peripheral portion of each of the magnetic field application disks 400A, 400B,..., 400H, 400I so as to face the inner peripheral refrigerant passage 320. The inner peripheral fan provided in the inner periphery of the magnetic field application disks 400A,..., 400H, 400I is rotated from the inlet 330IN of the inner peripheral refrigerant passage 320 by rotating the magnetic field application disks 400A, 400B,. The air that has flowed in flows through the inner peripheral refrigerant passage 320 in the stacking direction of the heat generating disk and the magnetic field application disk, and flows out to the outlet 330OUT.

  A hollow heat generating disk 410A,..., 410H having a magnetocaloric material and a thermal switch is fixedly attached so as to be sandwiched between the magnetic field application disks 400A, 400B,. is there. Therefore, the magnetic field application disk and the heat generation disk are alternately stacked with a minute interval. The magnetocaloric material has a characteristic that its own temperature rises when a magnetic field is applied, and its temperature falls when the magnetic field is removed (a positive magnetic material: some of the opposite characteristics exist). In the first embodiment, only one of a positive magnetic material and a negative magnetic material is used as the magnetocaloric material. However, a positive magnetic material and a negative magnetic material may be mixed. The thermal switch is provided between the magnetocaloric material and the magnetocaloric material that are arranged, and selectively transfers and blocks heat between the magnetocaloric material.

  Accordingly, when the magnetic field application disks 400A, 400B,..., 400H, 400I rotate, a magnetic field is repeatedly applied to each of the heat generation disks 410A,..., 410H, and the magnetic field application disks 400A, 400B,. Heat moves in a direction that intersects the direction. In the case of Embodiment 1, heat moves from the outer peripheral side to the inner peripheral side of the heat generating disks 410A,..., 410H. Therefore, the temperature is low on the outer peripheral side of the heat generating disks 410A,..., 410H, and the temperature is higher on the inner peripheral side. In contrast to the first embodiment, heat may be transferred from the inner peripheral side to the outer peripheral side of the heat generating disks 410A,..., 410H. In this case, the temperature is high on the outer peripheral side of the heat generating disks 410A,..., 410H, and the temperature is low on the inner peripheral side.

  A swirl flow generating blade (described later) is fixed to the inner peripheral portion of the heat generating disks 410A,..., 410H so as to face the inner peripheral refrigerant passage 320. The swirl flow generating blades provided in the heat generating disks 410A,..., 410H allow the air flowing in from the inlet 330IN of the inner peripheral refrigerant passage 320 to flow out to the outlet 330OUT while swirling. A fixed angle is provided with respect to the extending direction of 320.

  FIG. 4 is a configuration diagram of the magnetic field application disk of FIG. 4, the configuration of the magnetic field application disk 400A shown in FIG. 3 will be described. The other magnetic field application disks 400B-400I have the same configuration as the magnetic field application disk 400A.

  As shown in FIG. 4B, an outer peripheral fan 405A facing the outer peripheral refrigerant passage 200A (see FIGS. 1 and 3) is attached to the outer periphery of the magnetic field application disk 400A over the entire periphery. The outer peripheral fan 405A has blades formed in a direction intersecting with the direction in which the magnetic field application disk 400A rotates. In the case of the first embodiment, the blade is formed substantially orthogonal to the rotating direction of the magnetic field application disk 400A. Therefore, as shown in FIG. 4B, when the magnetic field application disk 400A is viewed from above, only the thickness of the blade is visible. By rotating the magnetic field application disk 400A, an air flow in the same direction as the rotation direction of the magnetic field application disk 400A is generated in the outer peripheral refrigerant passage 200A. The other magnetic field application discs 400B-400I also generate an air flow in the same direction as the rotation direction of the magnetic field application discs 400B-400I in the respective peripheral refrigerant passages 200B-200I.

  An inner peripheral fan 406A facing the inner peripheral refrigerant passage 320 (see FIGS. 1 and 3) is attached to the inner peripheral portion of the magnetic field application disk 400A over the entire periphery. The inner peripheral fan 406A is attached at a fixed angle with respect to the direction in which the magnetic field application disk 400A rotates so that air flows in the direction from the back side to the front side in the figure. As the magnetic field application disk 400A rotates, an air flow in the direction from the inlet 330IN to the outlet 330OUT is generated in the inner peripheral refrigerant passage 320. The other magnetic field application disks 400B-400I also generate an air flow in the inner circumferential refrigerant passage 320 in the direction from the inlet 330IN to the outlet 330OUT.

  4A shows the front surface of the magnetic field application disk 400A of FIG. 4B, and FIG. 4C shows the back surface thereof. As shown in FIGS. 4A and 4C, the front surface and the back surface of the magnetic field application disk 400A have regions that are radially divided into 12 portions of 30 degrees.

  On the surface of the magnetic field application disk 400A, as shown in FIG. 4A, magnetic field application units 420Aa, 420Ab,..., 420Ak, 420Al are formed in each of the 12 regions. On the back surface of the magnetic field application disk 400A, as shown in FIG. 4C, magnetic field application units 420Ca, 420Cb,..., 420Ck, 420Cl are formed in each of the 12 regions.

  The magnetic field application units 420Aa-420Al on the front surface of the magnetic field application disk 400A and the magnetic field application units 420Ca-420Cl on the back surface thereof have permanent magnets arranged at the same positions on the front surface and the back surface. For example, as shown in FIG. 4A, the arrangement of the permanent magnets in the radial direction of the magnetic field application disk 400A is the same in the magnetic field application unit 420Aa and the magnetic field application unit 420Ca. The same applies to the magnetic field application units 420Ab and 420Cb, ..., and the magnetic field application units 420Al and 420Cl.

  Further, on the front and back surfaces of the magnetic field application disk 400A, the arrangement of the permanent magnets between the adjacent magnetic field application parts is shifted from each other in the radial direction of the magnetic field application disk 400A by the thickness of one permanent magnet. For example, in each of the magnetic field application units 420Aa, 420Ab, and 420Ac, in the magnetic field application units 420Aa and 420Ac adjacent to the magnetic field application unit 420Ab, the arrangement of the permanent magnets of the magnetic field application units 420Aa and 420Ac is changed to the permanent magnet of the magnetic field application unit 420Ab. The arrangement is shifted in the radial direction of the magnetic field application disk 400A by the thickness of one permanent magnet.

  FIG. 5 is a configuration diagram of the heat generating disk of FIG. FIG. 5 describes the configuration of the heat generating disk 410A shown in FIG. The configuration of the heat generation disk other than the heat generation disk 410A is the same as that of the heat generation disk 410A.

  As shown in FIG. 5A, the heat generating disk 410A includes an outer peripheral refrigerant passage 200A on the outer peripheral portion thereof. The heat generating disk 410A includes an inner peripheral refrigerant passage 320 on the inner peripheral portion thereof. The inner periphery of the heat generating disk 410A is attached to the rotor 310 via a bearing 315. The rotor 310 can freely rotate via a bearing 315 with respect to the fixed heat generating disk 410A.

  As shown in FIGS. 5A and 5B, the position (outer peripheral part) facing the outer refrigerant passage 200A of the heat generating disk 410A is provided with a low-temperature side heat exchanging part 450A, and the position (inner peripheral part) facing the inner peripheral refrigerant path 320. ) Includes a high temperature side heat exchanging section 450B.

  As shown in FIG. 5A, the heat generating disk 410A has a region radially divided into 12 portions of 30 degrees. In each region, as shown in FIG. 5B, positive magnetocaloric materials 460A-460N and thermal switches 470A-470N + 1 are alternately arranged in a row between the low temperature side heat exchange section 450A and the high temperature side heat exchange section 450B. Is done. Although the example of FIG. 5 shows a positive magnetocaloric material, a negative magnetocaloric material may be used.

  As shown in FIG. 3, the magnetic field application disks 400A and 400B rotate with the heat generation disk 410A interposed therebetween. When the magnetic field application disks 400A and 400B rotate, magnetism is applied to and removed from the magnetocaloric material 460A-460N formed on the heat generating disk 410A, and heat generation and heat absorption are repeated. Thermal switches 470A-470N + 1 provided between the magnetocaloric material 460A-460N, the low temperature side heat exchange unit 450A, and the high temperature side heat exchange unit 450B transfer heat at a constant timing. For this reason, the heat generated by the magnetocaloric material 460A-460N moves from the low temperature side heat exchange unit 450A to the high temperature side heat exchange unit 450B, the temperature of the low temperature side heat exchange unit 450A becomes low, and the high temperature side heat exchange unit 450B. The temperature of becomes higher.

  When the magnetic field application disks 400A, 400B,..., 400H, 400I are rotated by the outer rotor motor 300 (see FIG. 3), as shown in FIG. 5A, the low temperature side in all regions of the heat generation disks 410A,. Heat moves from the heat exchange part 450A toward the high temperature side heat exchange part 450B.

  Accordingly, the temperature of the low temperature side heat exchange unit 450A becomes relatively lower than the temperature of the high temperature side heat exchange unit 450B, and cold air is obtained by flowing air through the outer peripheral refrigerant passage 200A facing the low temperature side heat exchange unit 450A. In addition, when the temperature of the high temperature side heat exchange unit 450B is relatively higher than the temperature of the low temperature side heat exchange unit 450A and air is allowed to flow through the inner peripheral refrigerant passage 320 facing the high temperature side heat exchange unit 450B, warm air is obtained. .

  FIG. 6 is a configuration diagram of the outer peripheral fan and outer peripheral refrigerant passages 200A,..., 200H, 200I provided on the outer periphery of the magnetic field application disks 400A, 400B,.

  As described with reference to FIG. 4, as shown in FIG. 6, an outer peripheral fan 405 </ b> A is attached to the outer periphery of the magnetic field application disks 400 </ b> A, 400 </ b> B,. The outer peripheral fan 405A moves in the outer peripheral refrigerant passages 200A,..., 200H, 200I and pushes the air in the outer peripheral refrigerant passages 200A,. Therefore, the mounting angle of the outer peripheral fan 405A is slightly inclined with respect to the rotation direction of the magnetic field application disks 400A, 400B,. Also, the shape of the blade of the fan 405A follows the inner circumference of the outer refrigerant passages 200A, ..., 200H, 200I so that the force that pushes the air in the outer refrigerant passages 200A, ..., 200H, 200I in the rotational direction can be exerted. It is formed in a rectangular shape.

  As shown in FIG. 1, the outer refrigerant passage 200A is provided with an air inlet 210IN used as a refrigerant. The outer refrigerant passage 200I is provided with an air outlet 210OUT. The peripheral refrigerant passages 200A and 200B are connected by a serial connection passage 220A. The outer peripheral refrigerant passages 200B and 200C are connected by a serial connection passage 220B. Similarly, the peripheral refrigerant passages 200C to 220I are connected to the peripheral refrigerant passages adjacent on the upper side by serial connection passages 220C, ..., 220H.

  In the first embodiment, as shown in FIGS. 1 and 6, the air inlet 210IN provided in the outer refrigerant passage 200A is attached to the side of the heat generating disk 410A close to the low temperature side heat exchanging portion 450A. This is because the air flowing from the air inlet 210IN into the outer refrigerant passage 200A can be efficiently cooled.

  In addition, the low-temperature side heat exchange facing the outer refrigerant passages 200A, ..., 200H, 200I is also performed on the air inlets and outlets of the serial connection passages 220A, ..., 220H attached to the outer refrigerant passages 200A, ..., 200H, 200I. It is attached on the side close to the part 450A.

  The air outlet 210OUT provided in the outer peripheral refrigerant passage 200I is attached to the side of the heat generating disk 410H close to the low temperature side heat exchange part 450A.

  Cold air is generated in the following manner by the outer peripheral fan passage 405A attached to the outer peripheral portions of the outer peripheral refrigerant passages 200A,..., 200H, 200I, the serial connection passages 220A-220H, and the magnetic field application disks 400A, 400B,. The

  The air that has flowed into the outer refrigerant passage 200A from the air inlet 210IN (see FIG. 1) reaches the surface of the low temperature side heat exchanging section 450A (see FIGS. 5 and 6) of the heat generating disk 410A that faces the outer refrigerant passage 200A. Touch to cool down. An outer peripheral fan 405A attached to the magnetic field application disk 400A is rotating inside the outer peripheral refrigerant passage 200A. Therefore, the air that has flowed into the outer peripheral refrigerant passage 200A is pushed out while being cooled in the rotation direction of the magnetic field application disk 400A.

  The air that has reached the inlet of the series connection passage 220A due to the rotation of the outer peripheral fan 405A flows into the series connection passage 220A, and flows into the outer refrigerant passage 200B from the outlet of the series connection passage 220A. The air that has flowed into the outer refrigerant passage 200B is further cooled by coming into contact with the surface of the low temperature side heat exchanging portion 450A of the heat generating disk 410B that faces the outer refrigerant passage 200B. An outer peripheral fan 405B attached to the magnetic field application disk 400B is rotating inside the outer peripheral refrigerant passage 200B. Therefore, the air flowing into the outer peripheral refrigerant passage 200B is pushed out while being further cooled in the rotation direction of the magnetic field application disk 400B.

  The air that has reached the inlet of the series connection passage 220B due to the rotation of the outer peripheral fan 405B flows into the series connection passage 220B, and flows into the outer refrigerant passage 200C from the outlet of the series connection passage 220B. As described above, the temperature of the air flowing through the outer peripheral refrigerant passage 200C-200I and the series connection passage 220B-220H gradually decreases toward the outer peripheral refrigerant passage 200I. Then, the air that flows out from the air outlet 210OUT (see FIG. 1) is cooled to a temperature that is substantially the same as the temperature of the low-temperature side heat exchange section 450A. The air that has flowed out of the air outlet 210OUT is supplied, for example, into the passenger compartment to cool the interior of the vehicle.

  In the first embodiment, the air inlet 210IN provided in the outer refrigerant passage 200A, the inlets and outlets of the outer refrigerant passages 200A-200I, and the air outlet 210OUT provided in the outer refrigerant passage 200I are close to the heat generating disks 410A-410H. It is attached to the side. Therefore, the air flowing into the outer peripheral refrigerant passages 200A-200I can be efficiently cooled.

  In addition, if all the outer periphery refrigerant passages 200A-200I are connected in series by the serial connection passages 220A-220H as in the first embodiment, the cooling efficiency can be improved. However, when trying to obtain a large air volume, the outer peripheral refrigerant passages 200A-200I and the series connection passages 220A-220H increase in size. Therefore, the outer peripheral refrigerant passages 200A to 200I may not be connected in series, but the outer peripheral refrigerant passages connected in series may be grouped, and the serial connection passage may connect the outer peripheral refrigerant passages in series for each group.

  FIG. 7 is a configuration diagram of a swirl flow generating blade provided on the inner periphery of the heat generating disk of FIG. The swirl flow generating blade 350 shown in the figure is attached to the inner peripheral portion of the heat generating disks 410A,..., 410H so as to face the inner peripheral refrigerant passage 320.

  The swirl flow generating blade 350 has a plurality of blades 352A, 352B, 352C,... Arranged at regular intervals along the inner peripheral refrigerant passage 320. The blades 352A, 352B, 352C,... Are twisted at a certain angle with respect to the extending direction of the inner peripheral refrigerant passage 320 (the vertical direction on the paper surface).

  When the rotor 310 rotates, the air flowing through the inner peripheral refrigerant passage 320 is swirled as follows. When the rotor 310 rotates, an inner peripheral fan 406A (see FIG. 4) provided on the inner periphery of the magnetic field application disks 400A-400I goes from the inlet 330IN to the outlet 330OUT in the inner peripheral refrigerant passage 320 (see FIG. 1). Create an air flow.

  The air in the inner peripheral refrigerant passage 320 hits the blades 352A, 352B, 352C,. Since the blades 352A, 352B, 352C,... Are twisted at a certain angle to generate a swirling flow, the air flowing in the inner peripheral refrigerant passage 320 swirls and flows. Since the swirl flow generation blade 350 is provided on the inner peripheral portion of the heat generation disks 410A,..., 410H, the swirl flow formed is maintained and is directed from the inlet 330IN to the outlet 330OUT along the rotor 310. It flows while turning.

  Hot air is generated in the following manner by the swirl flow generating blade 350 attached to the inner peripheral portion of the inner peripheral refrigerant passage 320 and the heat generating disks 410A,.

  The air flowing in from the air inlet 330IN (see FIG. 1) of the inner peripheral refrigerant passage 320 faces the inner peripheral refrigerant passage 320, and the surface of the high temperature side heat exchange section 450B (see FIG. 5) of the heat generation disk 410A-410I. Touch to warm up. Inside the inner peripheral refrigerant passage 320, an inner peripheral fan 406A attached to the magnetic field application disks 400A-400I is rotating. Accordingly, the air flowing into the inner peripheral refrigerant passage 320 is gradually warmed while turning from the air inlet 330IN toward the air outlet 330OUT (see FIG. 1). The air that has flowed out of the air outlet 330OUT is warmed to a temperature that is substantially the same as the temperature of the high temperature side heat exchange section 450B. The air that has flowed out of the air outlet 330OUT is supplied into the passenger compartment, for example, to heat the interior of the vehicle.

  In the above example in the first embodiment, the air flowing through the outer peripheral refrigerant passages 200C-200I and the air flowing through the inner peripheral refrigerant passage 320 are, as shown in FIG. 2, the magnetic field application disks 400A-400I and the heat generation disks 410A-410H. It was made to flow while turning in the same direction toward the laminating direction. However, the air flowing through the outer peripheral refrigerant passages 200C-200I and the air flowing through the inner peripheral refrigerant passage 320 can also flow in different directions.

  As shown in FIG. 2, when the direction of the swirling flow of the air flowing through the outer peripheral refrigerant passages 200A-200I and the direction of the swirling flow of the air flowing through the inner peripheral refrigerant passage 320 are the same, as shown by the solid line in FIG. The temperature of the air gradually decreases from the air inlet 210IN of the outer refrigerant passage 200A to the air outlet 210OUT of the outer refrigerant passage 200I. On the other hand, as shown by a dotted line in FIG. 8A, the temperature of the air gradually increases from the inlet 330IN to the outlet 330OUT of the inner peripheral refrigerant passage 320.

  Further, as shown in FIG. 8B, the ability of the magnetic cooling / heating device 100 to carry heat becomes the largest in the vicinity of the air inlet 210IN of the outer refrigerant passage 200A and the air inlet 330IN of the inner refrigerant passage 320. The ability to carry heat decreases toward the air outlet 210OUT of the outer refrigerant passage 200A and the air outlet 330OUT of the inner refrigerant passage 320.

  On the other hand, as shown in FIG. 9, the direction of the swirling flow of air flowing through the outer peripheral refrigerant passages 200 </ b> A- 200 </ b> I and the direction of the swirling flow of air flowing through the inner peripheral refrigerant passage 320 can be reversed. In the case shown in FIG. 9, the direction of the swirling flow of the air flowing through the outer peripheral refrigerant passages 200A-200I is the same as that in FIG. is there. At this time, the vertical positional relationship between the inflow port 330IN and the outflow port 330OUT of the inner peripheral refrigerant passage 320 is upside down in the case of FIGS.

  As shown in FIG. 9, the direction of the swirling flow of the air flowing through the outer peripheral refrigerant passages 200A-200I is from the lower direction to the upper direction, and the direction of the swirling flow of the air flowing through the inner peripheral refrigerant passage 320 is from the upper direction to the lower direction. Then, as shown by the solid line in FIG. 10A, the temperature of the air gradually decreases from the air inlet 210IN of the outer refrigerant passage 200A to the air outlet 210OUT of the outer refrigerant passage 200I. On the other hand, as shown by the dotted line in FIG. 10A, the temperature of the air gradually increases from the inlet 330IN (upside down in the case of FIGS. 1 and 3) of the inner peripheral refrigerant passage 320 to the outlet 330OUT. Go.

  Further, the ability of the magnetic air conditioner 100 to carry heat does not change at any position in the outer peripheral refrigerant passage 200-200I and the inner peripheral refrigerant passage 320, as shown in FIG. 10B.

  11 is a configuration diagram of the outer peripheral fan and outer peripheral refrigerant passages 200A,..., 200H, 200I provided on the outer peripheral portion of the magnetic field application disks 400A, 400B,. In FIG. 11, unlike FIG. 6, the air inlet 210IN provided in the outer peripheral refrigerant passage 200A is attached to the side closer to the outer peripheral fan 405A of the magnetic field application disk 400A. This is because air can be efficiently taken in from the air inlet 210IN. Further, an air outlet 210OUT provided in the outer peripheral refrigerant passage 200I is also attached to the side closer to the outer peripheral fan 405A of the magnetic field application disk 400I.

  Similarly, the vertical inlet and outlet positions of the serial connection passages 220C, ..., 220H attached to the outer refrigerant passages 200A, ..., 200H, 200I are the same in the outer refrigerant passages 200A, ..., 200H, 200I. It is formed at a different position instead of the position.

  According to Embodiment 1 demonstrated above, since the arbitrary outer periphery refrigerant path 200A-200I is connected in series by the serial connection path 220-220H, the taken-in air can be heat-exchanged efficiently.

  Since the air flowing through the inner peripheral refrigerant passage 320 is swirled by the inner peripheral fan, the taken-in air can be efficiently heat-exchanged.

  Since the direction of the swirling flow of the air flowing through the outer peripheral refrigerant passages 200A-200I and the direction of the swirling flow of the air flowing through the inner peripheral refrigerant passage 320 are the same, the air in the outer peripheral refrigerant passages 200A-200I and the inner peripheral refrigerant passage 320 The inlets 210IN and 330IN and the outlets 210OUT and 330OUT are in the same direction. For this reason, the temperature difference of the air which flows out outflow port 210OUT, 330OUT can be maximized.

  When the direction of the swirling flow of the air flowing through the outer peripheral refrigerant passages 200A-200I and the direction of the swirling flow of the air flowing through the inner peripheral refrigerant passage 320 are reversed, the air in the outer peripheral refrigerant passages 200A-200I and the inner peripheral refrigerant passage 320 The inlets 210IN and 330IN and the outlets 210OUT and 330OUT are in opposite directions. For this reason, the temperature difference of the air which flows out outflow port 210OUT, 330OUT can be made small. Further, the absolute value of the temperature difference between the air flowing out from the outlets 210OUT and 330OUT can be made the same.

  Since air is used as a refrigerant, the air can be directly heated or cooled. If this air is used, for example, in an air conditioner mounted on a vehicle, the air conditioner can be realized with a simple configuration.

  In addition to air, it is possible to use liquid refrigerant or gas that is harmless to the environment.

  In the first embodiment, the heat generation disk is fixed and the magnetic field application disk is rotated. However, on the contrary, the magnetic field application disk is fixed and the heat generation disk is rotated. However, the present invention is applicable. In that case, the outer peripheral fan and the inner peripheral fan are attached to the heat generating disk, and the magnetic field application disk is fixed to the inner peripheral refrigerant passage.

[Embodiment 2]
In the first embodiment, the magnetic air conditioner 100 (see FIG. 3) is formed by stacking the same heat generating disks 410A-410H. Therefore, the heat generation characteristics of all the heat generation disks 410A-410H are the same regardless of the stacking position of the disks. In the second embodiment, unlike the first embodiment, the magnetic cooling / heating device is formed by stacking heat generation disks having different heat generation characteristics. Further, in the first embodiment, as shown in FIG. 2, the air flow in the outer refrigerant passages 200 </ b> A- 200 </ b> I and the air flow in the inner refrigerant passage 320 are in the same direction and are directed from the lower side to the upper side. However, in the second embodiment, the direction of air flow in the inner peripheral refrigerant passage is a direction from the lower side to the upper side, and the direction of air flow in the outer peripheral refrigerant passage is the direction from the upper side to the lower side.

  FIG. 12 is a cross-sectional view of a magnetic air conditioner 500 according to the second embodiment. As shown in the drawing, the magnetic cooling / heating apparatus 500 has outer peripheral refrigerant passages 600A, 600B,. In addition, an outer rotor motor 700 is attached to the central portion of the magnetic air conditioner 500. A cylindrical rotor 750 is attached to the outer periphery of the outer rotor motor 700. The rotor 750 is rotated in the direction indicated by the arrow by the outer rotor motor 700.

  The rotor 750 is provided with hollow magnetic field application disks 800A, 800B,..., 800G each having a magnetic field application unit that applies a magnetic field to the magnetocaloric material. The magnetic field application section is formed on both the front and back surfaces of the magnetic field application disks 800A, 800B,. The outer peripheral surface of the rotor 700 and the inner peripheral surfaces of the magnetic field application disks 800A, 800B,..., 800G are firmly fitted. Therefore, when the rotor 750 is rotated by the outer rotor motor 700, the magnetic field application disks 800A, 800B,.

  , 800G are provided on the outer periphery of the magnetic field application disks 800A, 800B,..., 800G fitted to the rotor 750 independently of the magnetic field application disks 800A, 800B,. The outer peripheral fans 650A, 650B,... The outer peripheral fans 650A, 650B,..., 650G circulate air through the outer peripheral refrigerant passages 600A, 600B,. When the magnetic field application disks 800A, 800B,..., 800G rotate, the air flowing from the inlet of the outer refrigerant passage (attached to the outer refrigerant passage 600F) is attached to the outlet of the outer refrigerant passage (attached to the outer refrigerant passage 600A). Spill).

  An inner peripheral fan (not shown) is provided at the inner peripheral portion of the magnetic field application disks 800A, 800B,..., 800G so as to face the inner peripheral refrigerant passage 720. The inner peripheral fan provided in the inner periphery of the magnetic field application disks 800A, 800B,..., 800G flows in from the inlet (lower side) of the inner peripheral refrigerant passage as the magnetic field application disks 800A, 800B,. The discharged air flows out to the outlet (upper side).

  A hollow heat generating disk 900A,..., 900F having a magnetocaloric material and a thermal switch is fixedly attached so as to be sandwiched between the magnetic field application disks 800A, 800B,. Therefore, the magnetic field application disk and the heat generation disk are alternately stacked with a minute interval. The magnetocaloric material is a positive magnetic material having a characteristic that its temperature rises when a magnetic field is applied and its temperature falls when the magnetic field is removed. In the second embodiment, only one of a positive magnetic material and a negative magnetic material is used as the magnetocaloric material. The thermal switch is provided between the magnetocaloric material and the magnetocaloric material arranged on the heat generating disk, and selectively transfers and blocks heat between the magnetocaloric materials.

  Therefore, when the magnetic field application disks 800A, 800B,..., 800G rotate, a magnetic field is repeatedly applied to each of the heat generation disks 900A,..., 900F, and intersects the rotating direction of the magnetic field application disks 800A, 800B,. Heat moves in the direction. In the case of the second embodiment, heat moves from the outer peripheral side to the inner peripheral side of the heat generating disks 900A,..., 900F. Therefore, the temperature is low on the outer peripheral side of the heat generating disks 900A,..., 900F, and the temperature is higher on the inner peripheral side. In contrast to the present embodiment, heat may be transferred from the inner peripheral side to the outer peripheral side of the heat generating disks 900A,..., 900F. In this case, the temperature is high on the outer peripheral side of the heat generating disks 900A,..., 900F, and the temperature is low on the inner peripheral side.

  FIG. 13 is a schematic diagram of the behavior of air flowing through the outer peripheral refrigerant passage and the inner peripheral refrigerant passage of the magnetic cooling and heating apparatus 500 according to the second embodiment. In the second embodiment, as shown in FIG. 12, air flows from the lower side to the upper side in the inner refrigerant passage 720 of the magnetic cooling and heating apparatus 500, and the outer refrigerant passages 600 </ b> A to 600 </ b> F from the upper side to the lower side. Run air. Therefore, the behavior of the air flowing through the outer peripheral refrigerant passages 600A to 600F and the inner peripheral refrigerant passage 720 is as shown in FIG.

  When air is flowed as shown in FIG. 13, the temperature of the air flowing through the inner peripheral refrigerant passage 720 increases (Tb to Th) from the lower side (A position) to the upper side (B position), and the outer peripheral refrigerant passage 600A- The temperature of the air flowing through 600F becomes lower (from Tb to Tc) as it goes from the upper side (A position) to the lower side (B position).

  FIG. 14 is a diagram illustrating a temperature change of air while moving from an air inlet to an air outlet of the magnetic cooling and heating apparatus 500 according to the second embodiment. As shown in FIG. 14, the temperature of the air moving from the position A (see FIG. 12) where the air inlet of the peripheral refrigerant passage is located to the position B where the air outlet is located is as shown in FIG. Distributed.

  Specifically, as shown in FIGS. 13 and 14, the air that has flowed in at the temperature Tb through the air inlet of the outer refrigerant passage 600F is cooled to the temperature Tc toward the outer refrigerant passage 600A. For this reason, the air in the outer periphery refrigerant passages 600A to 600F is distributed substantially uniformly between the temperature Tb and the temperature Tc. Further, the air that has flowed into the air inlet of the inner peripheral refrigerant passage 720 at the temperature Tb is heated to the temperature Th as it moves through the inner peripheral refrigerant passage 720. For this reason, the air in the inner peripheral refrigerant passage 720 is distributed substantially uniformly between the temperature Tb and the temperature Th.

  Referring to FIG. 14, each of the heat generating disks 900A,..., 900F shown in FIG. 12 has substantially the same temperature difference between the air flowing through the outer refrigerant passage and the air flowing through the inner refrigerant passage regardless of the stacking position. It can be seen that it is. However, it can be seen that how many degrees Celsius air is set to what degree Celsius depends on the stacking position of the heat generating disks 900A,..., 900F.

  In the first embodiment, the magnetic air-conditioning apparatus 100 is configured by stacking the same heat generating disks 410A-410H (see FIG. 3). In the second embodiment, the heat generation of all the heat generation disks 900A,..., 900F is performed so that heat generation and heat transfer are performed efficiently in all the heat generation disks 900A,. The characteristics are optimized according to the stacking position.

  FIG. 15 is a diagram showing the arrangement of magnetocaloric materials in the heat generating disk 900A of FIG. As shown in FIG. 15, the heat generating disk 900A has magnetocaloric materials 950A, 950B, 950C, 950D, 950E, and 950F in respective regions divided into 12 parts in the circumferential direction from the outer peripheral side toward the inner peripheral side. Be placed. As shown in the drawing, each of the magnetocaloric materials 950A, 950B, 950C, 950D, 950E, and 950F has the same radial width, but the circumferential length increases from the inner circumferential side toward the outer circumferential side. ing.

  16 is a cross-sectional view taken along the line BB in FIG. In the first embodiment, since all of the magnetocaloric materials 460A to 460N (see FIG. 5) are formed of the same material, the operating temperatures of all the magnetocaloric materials are the same. However, in the second embodiment, the composition of the materials in the magnetocaloric materials 950A, 950B, 950C, 950D, 950E, and 950F is changed, and the operating temperatures of all the magnetocaloric materials are changed.

  Here, the operating temperature refers to the temperature of the magnetocaloric material at which the largest temperature change is obtained when a magnetic field is applied. For example, a magnetocaloric material having an operating temperature of 20 ° C. can obtain the greatest temperature change when a magnetic field is applied and removed in a temperature environment of 20 ° C. However, even if a magnetic field is applied and removed in a temperature environment of 25 ° C., a temperature change as obtained in a temperature environment of 20 ° C. cannot be obtained, and efficient heat generation becomes impossible.

  More specifically, in the heat generating disk 900A shown in FIG. 15, the magnetocaloric material 950F that is in contact with the inner refrigerant passage 720 operates near the temperature Tb as shown in FIGS. Thus, the magnetocaloric material 950A that comes into contact with the outer peripheral refrigerant passage 600A operates near the temperature Tc. As described above, even in the same heat generating disk 900A, the temperature range in which the operation is performed varies depending on the radial position of the magnetocaloric material. Therefore, the operation of each magnetocaloric material is performed in consideration of the temperature region in which all the magnetocaloric materials operate so that all the magnetocaloric materials arranged on the heat generating disk 900A can efficiently generate heat and absorb heat. Design the temperature.

  In the second embodiment, in order to optimize the heat generation characteristics of the magnetocaloric materials 950A, 950B, 950C, 950D, 950E, and 950F, the operating temperatures of the magnetocaloric materials 950A, 950B, 950C, 950D, 950E, and 950F, respectively. Is changing.

  FIG. 17 is a diagram for explaining the operating temperature range of the magnetocaloric materials 950A, 950B, 950C, 950D, 950E, and 950F in the heat generating disk 900A. In this figure, the horizontal axis is the operating temperature, and the vertical axis is the temperature change range (ΔT). Note that ΔT varies depending on the strength of the magnetic field.

  As shown in the figure, each magnetocaloric material 950A-950F has a peak in the changing temperature range (ΔT on the vertical axis), and the temperature at this peak (horizontal axis) is the operating temperature at which the temperature is most likely to change. . The operating temperature of the portion showing this peak is a temperature corresponding to the operating temperature (Curie point) of the magnetocaloric material. As can be seen from the figure, each magnetocaloric material has an operating temperature range centered on the temperature of the Curie point. That is, the temperature hardly changes when the temperature is away from the temperature at the peak position of ΔT.

  Here, when these magnetocaloric materials 950A to 950F are arranged in the order of Curie point temperatures a to f as shown in the drawing, the temperature change ranges (respective chevron graphs of a to f) are respectively adjacent magneto calorific values. There is some overlap with the material. However, the overlapping portion is only the base portion away from the temperature of the peak (vertex) of ΔT. It can be seen that ΔT is low (vertical axis) is low at the base. Therefore, there is little temperature change in the base portion, that is, the portion where the magnetocaloric materials af are overlapped.

  The temperature range that can actually be used is a temperature range that shows a temperature change amount of about half or more of ΔT. For this reason, for example, if ΔT is 5 ° C., a positive magnetocaloric material having a Curie point of 22.5 ° C. (temperature rises by application of magnetism), and a material having a temperature change (ΔT) of 5 ° C., its operating temperature The range will be about 20-25 ° C. However, even at the base portion of 20 ° C. or lower and 25 ° C. or higher, the temperature change occurs due to the application and removal of the magnetic field. Similarly, other magnetocaloric materials have their operating temperature range and temperature change (ΔT) determined by the Curie point temperature and the material type.

  In the second embodiment, as shown in FIG. 17, the material composition of the magnetocaloric material 950A is adjusted so that the Curie point of the magnetocaloric material 950A located on the inner peripheral side of the heat generating disk 900A is a ° C. Similarly, the magnetocaloric material 950B has a Curie point of b ° C, the magnetocaloric material 950C has a Curie point of c ° C, and the magnetocaloric material 950D has a Curie point of dC ° C. The composition of each material is adjusted so that the Curie point of the material 950E is e ° C. and the Curie point of the magnetocaloric material 950F is f ° C. In this manner, magnetocaloric materials having different operating temperatures are arranged on the heat generating disk 900A so that the operating temperature changes stepwise from the inner circumference side toward the outer circumference side.

  Next, the magnetocaloric material corresponding to each operating temperature range will be described.

As a magnetocaloric material corresponding to each operating temperature range, for example, known LaFeSiH can be used. In LaFeSiH, the Curie point changes with changes in the amount of hydrogen in its composition (see, for example, Reference 1 “Large magnetoelectric effects and thermal transport properties of La (FeSi) 13 and the hydrogen hydride. Compounds 408-412 (2006) p.307-312). Similarly, the general formula: La (Fe _1-x M _x ) ₁₃ H _z (M is one or more elements selected from the group consisting of Si and Al, and x and z The values are also defined in the above-mentioned magnetocaloric material (Japanese Patent Laid-Open No. 2003-96547) expressed by 0.05 ≦ x ≦ 0.2; 0.3 ≦ z ≦ 3; A magnetocaloric material with various temperatures can be obtained.

  As described above, it has been described that the magnetocaloric materials having different Curie points are arranged in one heat generating disk 900A. In the second embodiment, the magnetocaloric materials having different Curie points are arranged in different combinations in all of the heat generating disks 900A to 900F.

  FIG. 18 is a diagram showing combinations of operating temperature ranges of magnetocaloric materials in the stacked heat generating disks. As shown in the drawing, in the heat generating disk 900A at the lowest layer, the magnetocaloric materials having Curie points a, b, c, d, e, and f are arranged from the inner peripheral side toward the outer peripheral side. Further, in the heat generating disk 900B located on the upper side of the heat generating disk 900A, magnetocaloric materials having Curie points b, c, d, e, f, and g are arranged from the inner peripheral side toward the outer peripheral side. Similarly, in each of the heat generating disks 900C, 900D, and 900E, a magnetocaloric material having a Curie point shifted by one from the heat generating disk on the upper side is disposed. Then, in the heat generation disk 900F having the uppermost layer, the magnetocaloric materials having Curie points of f, g, h, i, j, and k are arranged from the inner peripheral side toward the outer peripheral side.

  As shown in FIG. 14, the combination of the magnetocaloric materials having different Curie points according to the stacking position of the heat generating disks as described above is based on the inner peripheral side of each heat generating disk. This is because the operating temperature on the outer peripheral side is different. For example, as shown in FIG. 14, the heat generating disk 900F located at the uppermost stage operates between the temperature Th and the temperature Tb, but the heat generating disk 900A located at the lowermost stage is between the temperature Tb and the temperature Tc. Works with.

Therefore, in the second embodiment, as shown in FIG. 18, the operating temperatures of the magnetocaloric materials 950F and 950A disposed at the innermost and outermost positions of the heat generating disks 900A to 900F are the stacking of the heat generating disks. Magneto-caloric materials having different operating temperatures are arranged on the heat generating disks 900A to 900F so as to increase in stages as the position goes from the lower side to the upper side. This is because the temperature range in which the heat generating disk 900F and the heat generating disk 900A operate is different, and in order to efficiently generate heat in each heat generating disk, all heat generation is performed. This is because it is necessary to set an operating temperature range suitable for each disk.

As described above, in the second embodiment, the operating temperature of the magnetocaloric material arranged at the innermost and outermost positions of the heat generating disks 900A to 900F is such that the stacking position of the heat generating disks is changed from one side to the other side. Each of the heat generating disks has a stepwise change as it goes and the operation temperature changes stepwise from the inner peripheral side to the outer peripheral side of each of the heat generating disks 900A to 900F. Arrange magnetocaloric materials with different operating temperatures. In addition, the average value of the operating temperatures of the magnetocaloric materials arranged in the radial direction of the heat generating disks 900A to 900F is changed in stages as the heat generating disk stacking position moves from one side to the other side.

  FIG. 19 is a diagram showing the types of magnetocaloric materials used in the magnetic air conditioner 500 according to the second embodiment. As shown in FIG. 18, each of the heat generating disks 900A-900F uses a magnetocaloric material having six types of Curie points, and each time a stacking position is moved, the magnetic heat having one type of different Curie points is used. Since the material is used, the magnetic cooling / heating apparatus 500 needs eleven kinds of magnetocaloric materials having a Curie point from the temperature a to the temperature k as shown in FIG.

  In the above embodiment, as shown in FIG. 13, the case where air flows from the lower side to the upper side in the inner peripheral refrigerant passage 720 and the air flows from the upper side to the lower side in the outer peripheral refrigerant passages 600A-600F is illustrated. The technical idea of forming a heat generating disk using magnetocaloric materials having different Curie points in the second embodiment is not limited to the above example, and as shown in FIG. The present invention can also be applied to the case where air flows in the direction opposite to that in the second embodiment in the refrigerant passage. Further, as shown in FIG. 2 of the first embodiment, the present invention can also be applied to the case where air flows in the same direction in the inner peripheral refrigerant passage and the outer peripheral refrigerant passage.

  As in the second embodiment, when air is flowed in the opposite direction in the inner circumferential refrigerant passage and the outer circumferential refrigerant passage, each heat generating disk is compared with when air is flowed in the same direction in the inner circumferential refrigerant passage and the outer circumferential refrigerant passage. The temperature difference between the inner peripheral side (high temperature end) and the outer peripheral side (low temperature end) of 900A-900F can be halved. For this reason, the coefficient of performance (COP) for air conditioning is improved by 100%. Therefore, in order to efficiently generate heat and use the generated heat efficiently, it is necessary to flow air in the same direction in the inner peripheral refrigerant passage and the outer peripheral refrigerant passage as in the second embodiment.

  According to the magnetic air conditioner 500 according to the second embodiment described above, the operating temperature is changed stepwise from the inner circumference side to the outer circumference side of the heat generating disk. Heat generation is possible. In addition, since the operating temperature of the magnetothermal material is also changed in the stacking direction of the heat generating disks, the magnetic cooling / heating device 500 as a whole can efficiently generate heat.

[Embodiment 3]
Embodiment 3 illustrates the case where the magnetic air conditioning apparatus 500 demonstrated in Embodiment 2 is applied to an air conditioner.

  FIG. 20 is a diagram illustrating an air circulation system of the magnetic air conditioner according to the third embodiment. As shown in the figure, a low temperature side radiator 630 and a high temperature side radiator 730 are connected to the magnetic cooling and heating apparatus 500. The low temperature side radiator 630 is connected to the air inlet and outlet of the outer refrigerant passages 600A to 600F via the outer refrigerant passage pump 780. The high temperature side radiator 730 is connected to the air inlet and outlet of the inner refrigerant passage 720 via the inner refrigerant passage pump 790.

  The peripheral refrigerant passage pump 780 controls the flow rate of the refrigerant flowing through the peripheral refrigerant passages 600A-600F. The inner peripheral refrigerant passage pump 790 controls the flow rate of the refrigerant flowing through the inner peripheral refrigerant passage 720.

  The cold air generated in the outer peripheral refrigerant passages 600A to 600F is supplied to the low-temperature side radiator 630, and heat exchange is performed with the external air forcedly blown by the low-temperature side radiator fan 630F. The air after the heat exchange is returned to the outer peripheral refrigerant passages 600A to 600F and cooled. Further, the warm air generated in the inner peripheral refrigerant passage 720 is supplied to the high-temperature side radiator 730 and is heat-exchanged with the external air forcedly blown by the high-temperature side radiator fan 730F. The air after heat exchange returns to the inner peripheral refrigerant passage 720 and is heated again. The low temperature side radiator 630 cools outside air, and the high temperature side radiator 730 heats outside air.

  FIG. 21 is a block diagram of a control system of the magnetic air conditioner according to the third embodiment. FIG. 22 is a block diagram of a more specific control system of the air conditioning information input unit of FIG.

  As shown in FIG. 21, the control system of the magnetic air conditioner according to the third embodiment includes an air conditioning information input unit 1000, an air conditioning control unit 1100, a motor control unit 1200, an outer rotor motor 700, a thermal switch control unit 1300, and a pump control unit. 1400 and a fan control unit 1500. The air conditioning control unit 1100 and the motor control unit 1200 form a control unit.

  The air conditioning information input unit 1000 inputs information necessary for air conditioning. Information necessary for air conditioning is set temperature, outer peripheral inflow air temperature, outer peripheral outflow air temperature, inner peripheral inflow air temperature, and inner peripheral outflow air temperature. A specific description of the air conditioning information input unit 1000 will be made with reference to FIG.

  As shown in FIG. 12, the outer rotor motor 700 is a motor that rotates the magnetic application disks 800A to 800G with respect to the heat generation disks 900A to 900F.

  The air conditioning control unit 1100 comprehensively controls the operation of the magnetic air conditioner according to the present embodiment. A specific description of the air conditioning control unit 1100 will be made based on an operation flowchart of FIG.

  The motor control unit 1200 receives a command from the air conditioning control unit 1100 and controls the rotation speed of the outer rotor motor 700. Further, the thermal switch control unit 1300 controls ON / OFF of a thermal switch provided between the magnetocaloric materials of the heat generating disks 900A to 900F. The thermal switch is a switch that controls the heat conduction between the magnetocaloric materials in synchronization with the rotation of the magnetic application disks 800A-800G.

  The pump control unit 1400 controls the operations of the outer peripheral refrigerant passage pump 780 and the inner peripheral refrigerant passage pump 790 shown in FIG. The pump control unit 1400 increases the air outflow amount of the outer refrigerant passage pump 780 when more cooling capacity is required, and the air outflow of the inner refrigerant passage pump 790 when more heating capacity is required. Increase the amount.

  The fan control unit 1500 controls the operations of the low-temperature side radiator fan 630F and the high-temperature side radiator fan 730F illustrated in FIG. The fan control unit 1500 increases the airflow rate of the low-temperature side radiator fan 630F when more cooling capacity is required, and increases the airflow rate of the high-temperature side radiator fan 730F when more heating capability is required. Let

  As shown in FIG. 22, the air conditioning information input unit 1000 includes a temperature setting unit 1010, an outer peripheral inflow air temperature sensor 1020, an outer peripheral outflow air temperature sensor 1030, an inner peripheral inflow air temperature sensor 1040, an inner peripheral outflow air temperature sensor 1050, and a magnetic field. A calorific material ambient temperature sensor 1060 and a low temperature side heat exchange part high temperature side heat exchange part temperature sensor 1070 are provided.

  The temperature setting unit 1010 is a controller that sets the temperature of a space (for example, a vehicle interior) that is air-conditioned by the magnetic air conditioner 500. The outer peripheral inflow air temperature sensor 1020 detects the temperature of the air flowing into the outer peripheral refrigerant passage 600F shown in FIG. Outer peripheral air temperature sensor 1030 detects the temperature of the air flowing out from outer peripheral refrigerant passage 600A. The inner circumference inflow air temperature sensor 1040 detects the temperature of the air flowing into the inner circumference refrigerant passage 720. Inner circumference outflow air temperature sensor 1050 detects the temperature of air flowing out from inner circumference refrigerant passage 720. The magnetocaloric material ambient temperature sensor 1060 detects the ambient temperature of the magnetocaloric material of the heat generating disk 410A shown in FIG. The reason for detecting the ambient temperature of the magnetocaloric material is that the ambient temperature of the magnetocaloric material on the heat generating disk 410A affects the heat generation amount of the magnetocaloric material on the heat generating disk 410A. The low temperature side heat exchange part high temperature side heat exchange part temperature sensor 1070 detects the temperature of the low temperature side heat exchange part 450A and the high temperature side heat exchange part 450B.

  The temperature setting unit 1010, the magnetocaloric material ambient temperature sensor 1060, and the low temperature side heat exchange unit high temperature side heat exchange unit temperature sensor 1070 are provided in order to know how much heat must be generated in the magnetic air conditioner 500. It is. The outer periphery inflow air temperature sensor 1020, the outer periphery outflow air temperature sensor 1030, the inner periphery inflow air temperature sensor 1040, and the inner periphery outflow air temperature sensor 1050 form a high temperature source and a low temperature source in which the magnetic cooling / heating device keeps a stable temperature. It is necessary for.

  The amount of heat generated by the magnetic air conditioner 500 is proportional to the rotational speed (frequency) of the magnetic application disks 800A-800G. When the required thermal power increases, the rotational speed of the magnetic application disks 800A-800G increases, and when the required thermal power decreases, the rotational speed of the magnetic application disks 800A-800G decreases. Since the magnetic application disks 800A-800G are driven by the outer rotor motor 700, the air conditioning control unit 1100 and the motor control unit 1200 control the rotation speed of the magnetic application disks 800A-800G. That is, the air conditioning controller 1100 and the motor controller 1200 adjust the amount of heat generated by the magnetic air conditioner 500 by controlling the rotational speed of the outer rotor motor 700.

  The operation of the magnetic air conditioner according to the third embodiment will be described with reference to FIG. FIG. 23 is an operation flowchart of the magnetic air conditioner of FIG.

  First, the operator inputs a set temperature in the passenger compartment from the temperature setting unit 1010. When the set temperature is input, the air conditioning control unit 1100 inputs the required heat amount and the required temperature difference (S10).

  The air conditioning control unit 1100 refers to the space capacity in the passenger compartment, the current temperature in the passenger compartment, and the set temperature in the passenger compartment, and obtains the required amount of heat required to bring the passenger compartment to the set temperature. Further, the difference between the temperature of the air flowing out from the outer peripheral refrigerant passage and the temperature of the air flowing out from the inner peripheral refrigerant passage is obtained. The obtained values are input as the required heat amount and the required temperature difference.

  Next, the air conditioning control unit 1100 collates the input required heat amount and the required temperature difference with a map stored in advance, and inputs the rotational speed of the outer rotor motor 700, that is, the operating frequency f. Also, the air temperature serving as a reference for the temperature of the air flowing into the outer refrigerant passage from the temperature detected by the magnetocaloric material ambient temperature detection sensor 1060, half the required temperature difference from the temperature detected by the magnetocaloric material ambient temperature detection sensor 1060 The temperature of the air flowing out from the outer refrigerant passage from the temperature, the air temperature serving as a reference for the temperature of the air flowing into the inner refrigerant passage from the temperature detected by the magnetocaloric material ambient temperature detection sensor 1060, and the magnetocaloric material ambient temperature detection sensor 1060 The temperature of the air that flows out from the inner refrigerant passage is input from the temperature that is half the difference between the detected temperature and the required temperature. Further, the air flow rate of the outer periphery refrigerant passage pump 780 that supplies the refrigerant to the outer periphery refrigerant passage and the air flow rate of the inner periphery refrigerant passage pump 790 that supplies the refrigerant to the inner periphery refrigerant passage are also input. Further, the air volume of the low-temperature side radiator fan 630F and the air volume of the high-temperature side radiator fan 730F are also input (S20).

  The air conditioning control unit 1100 operates the magnetic cooling / heating device 500. Specifically, the air conditioning control unit 1100 issues a rotation speed instruction to the motor control unit 1200 in order to realize the input operating frequency f. The operating frequency f indicates how many times the magnetic material is applied / removed in one second. For example, if the operating frequency f is 6 Hz, in the case of the magnetic air conditioner 500 having the configuration shown in FIGS. 12 and 15, when the magnetic field application disk 800A makes one rotation per second, each magnetocaloric material of the heat generating disk The application and removal of magnetism is performed six times. For this reason, if the outer rotor motor 700 and the magnetic field application disk 800A are directly connected, the rotational speed required for the outer rotor motor 700 is 60 rpm. The motor controller 1100 is instructed of this rotational speed.

  The air conditioning control unit 1100 includes an ambient temperature of the magnetocaloric material ambient temperature sensor 1060 that detects an ambient temperature of the magnetocaloric material on a heat generating disk (not shown), a low temperature side heat exchange unit 450A and a high temperature side. The amount of heat generated by the magnetic cooling / heating device 500 estimated based on the temperature obtained by the low temperature side heat exchange unit high temperature side heat exchange unit temperature sensor 1070 for detecting the temperature of the heat exchange unit 450B and the information of the operating frequency f corresponds to the required amount of heat. It is determined whether it is within the error range (S30). The error range is set in advance. If the generated heat amount is not within the error range (S30: NO), the air conditioning control unit 1100 changes the operating frequency f so as to be within the error range (S40). Specifically, if the amount of heat generated by the magnetic air conditioner 500 is considerably smaller than the required amount of heat, the rotational speed of the outer rotor motor 700 is increased in order to increase the amount of heat generated. Conversely, if the amount of heat generated by the magnetic cooling / heating device 500 is too larger than the required amount of heat, the rotational speed of the outer rotor motor 700 is decreased in order to reduce the amount of heat generated.

  If the amount of generated heat is within the error range (S30: YES), the air conditioning control unit 1100 detects the temperature of the air at the inlet of the outer peripheral refrigerant passage detected by the outer peripheral inflow air temperature sensor 1020, and the inner peripheral inflow air temperature sensor. The temperature of the air at the inlet of the inner peripheral refrigerant passage detected by 1040 is within the error and the air temperature that is the reference for the temperature of the air flowing into the outer peripheral refrigerant passage and the inner peripheral refrigerant passage, and the outer peripheral outflow air temperature. The temperature of the air at the outlet of the outer peripheral refrigerant passage detected by the sensor 1030 and the temperature of the air at the outlet of the inner peripheral refrigerant passage detected by the inner peripheral outflow air temperature sensor 1050 are respectively set to the set outer peripheral refrigerant passage and It is determined whether the temperature of the air flowing out from the inner refrigerant passage is within an error (S50). The error range is set in advance. If the temperature of the air at the inlet and outlet of the outer peripheral refrigerant passage and the inner peripheral refrigerant passage is not within the error (S50: NO), the air conditioning control unit 1100 controls the fan control unit 1400 and the fan so as to be within the error range. The air flow rate of the outer peripheral refrigerant passage pump 780 that sends air to the outer peripheral refrigerant passage and the inner peripheral refrigerant passage pump 790 that sends air to the inner peripheral refrigerant passage; The air volume of the radiator fan 630F and the high-temperature side radiator fan 730F is changed (S60).

  If the temperature of the air flowing into the outer peripheral refrigerant passage and the inner peripheral refrigerant passage and the temperature of the air flowing out from the outer peripheral refrigerant passage and the inner peripheral refrigerant passage are within the error (S50: YES), the air conditioning control unit 1100 ends the process. To do.

  As described above, according to the magnetic air conditioner according to the third embodiment, the rotational speed of the outer rotor motor 700 is controlled, and the air flow rate by the outer peripheral refrigerant passage pump 780 and the inner peripheral refrigerant passage pump 790 is controlled. And the temperature of the air utilized for an air conditioning can be easily adjusted by controlling the air volume of the fan 630F for low temperature side radiators, and the fan 730F for high temperature side radiators.

100, 500 Magnetic air conditioner,
200A-200I, 600A-600F outer peripheral refrigerant passage,
210IN inlet,
210OUT outlet,
220A-220H serial connection passage,
300, 700 outer rotor motor,
310, 750 rotor,
315 bearing,
320, 720 inner circumferential refrigerant passage,
330IN inlet,
330OUT outlet,
350 swirl flow generation blade,
352A, 352B, 352C blade,
400A-400I, 800A-800G magnetic field application disk,
405A-405I, 650A-650G peripheral fan,
406A Inner fan,
410A-410I, 900A-900F heat generating disc,
420Aa-420Al magnetic field application unit,
420Ca-420Cl magnetic field application unit,
450A low temperature side heat exchange section,
450B high temperature side heat exchange part,
460A-460N, 950A-950F magnetocaloric material,
470A-470N + 1 thermal switch,
630 low temperature side radiator,
630F Low-temperature side radiator fan,
730 High-temperature side heatsink,
730F Fan for high temperature side radiator,
780 Pump for outer peripheral refrigerant passage,
790 pump for inner peripheral refrigerant passage,
1000 Air conditioning information input part,
1010 temperature setting unit,
1020 Outside air flow temperature sensor,
1030 Outer peripheral air temperature sensor,
1040 Inner circumference inflow air temperature sensor,
1050 Inner circumference outflow air temperature sensor,
1060 magnetocaloric material ambient temperature detection sensor,
1070 low temperature side heat exchange section high temperature side heat exchange section temperature detection sensor,
1100 air conditioning control unit,
1200 motor controller,
1300 thermal switch controller,
1400 pump controller,
1500 Fan control unit.

Claims (23)

A plurality of hollow heat generating disks including a magnetocaloric material and a heat switch and a hollow magnetic field applying disk including a magnetic field applying unit that applies a magnetic field to the magnetocaloric material are alternately stacked to generate the heat. In a magnetic air conditioner that transports heat in a direction that intersects the rotation direction by relatively rotating at least one of the disk and the magnetic field application disk,
A plurality of outer refrigerant passages formed along the outer circumference of the set of the heat generating disk and the magnetic field application disk;
A series connection passage for connecting arbitrary peripheral refrigerant passages of the plurality of peripheral refrigerant passages in series;
An outer peripheral fan attached to the outer periphery of at least one of the rotating heat generating disk and the magnetic field applying disk in order to flow the refrigerant in the plurality of outer peripheral refrigerant passages in the rotation direction of the heat generating disk or the magnetic field applying disk; ,
A magnetic air-conditioning apparatus comprising: An inner circumferential refrigerant passage formed along an inner circumference of the heat generating disk and the magnetic field application disk;
An inner peripheral fan attached to the inner periphery of at least one of the rotating heat generating disk and the magnetic field applying disk in order to flow the refrigerant in the inner peripheral refrigerant passage in the stacking direction of the heat generating disk and the magnetic field applying disk. When,
The magnetic air conditioner according to claim 1, comprising: The refrigerant flow generated by the plurality of outer peripheral refrigerant passages and the serial connection passage is directed in the direction in which the heat generating disk and the magnetic field application disk are stacked, and the refrigerant flow generated by the inner peripheral refrigerant passage is the heat. The magnetic air conditioner according to claim 2, wherein the direction of the generation disk and the magnetic field application disk in the stacking direction is the same direction. The refrigerant flow generated by the plurality of outer peripheral refrigerant passages and the serial connection passage is directed in the direction in which the heat generating disk and the magnetic field application disk are stacked, and the refrigerant flow generated by the inner peripheral refrigerant passage is the heat. The magnetic air conditioner according to claim 2, wherein a direction toward the stacking direction of the generation disk and the magnetic field application disk is opposite.   The magnetic air conditioner according to any one of claims 1 to 4, wherein the refrigerant flowing through the outer peripheral refrigerant passage is air. The magnetic air conditioner according to any one of claims 2 to 4, wherein the refrigerant flowing through the inner peripheral refrigerant passage is air. A hollow heat generating disk in which a magnetocaloric material having a magnetocaloric effect and a heat switch for transporting heat of the magnetocaloric material are alternately arranged, and a magnetic field applying unit that applies a magnetic field to the magnetocaloric material are provided. Magnets that transport heat in a direction crossing the rotational direction by alternately stacking a plurality of hollow magnetic field application disks and relatively rotating at least one of the heat generation disk and the magnetic field application disk. In air conditioning equipment,
Magnetic heating and cooling, wherein the heat generating disk is provided with magnetocaloric materials having different operating temperatures so that the operating temperature changes stepwise from the inner peripheral side to the outer peripheral side of the heat generating disk. apparatus. A hollow heat generating disk in which a magnetocaloric material having a magnetocaloric effect and a heat switch for transporting heat of the magnetocaloric material are alternately arranged, and a magnetic field applying unit that applies a magnetic field to the magnetocaloric material are provided. Magnets that transport heat in a direction crossing the rotational direction by alternately stacking a plurality of hollow magnetic field application disks and relatively rotating at least one of the heat generation disk and the magnetic field application disk. In air conditioning equipment,
The operating temperature of the magnetocaloric material arranged at the innermost circumferential position and the outermost circumferential position of each heat generating disk is changed stepwise as the stacking position of the heat generating disks moves from one side to the other side. A magnetic heating / cooling apparatus, wherein magnetic heat quantity materials having different operating temperatures are arranged on each of the heat generating disks. A hollow heat generating disk in which a magnetocaloric material having a magnetocaloric effect and a heat switch for transporting heat of the magnetocaloric material are alternately arranged, and a magnetic field applying unit that applies a magnetic field to the magnetocaloric material are provided. Magnets that transport heat in a direction crossing the rotational direction by alternately stacking a plurality of hollow magnetic field application disks and relatively rotating at least one of the heat generation disk and the magnetic field application disk. In air conditioning equipment,
The operating temperature of the magnetocaloric material arranged at the innermost circumferential position and the outermost circumferential position of each heat generating disk is changed stepwise as the stacking position of the heat generating disks moves from one side to the other side. In addition, each heat generating disk is provided with a magnetocaloric material having a different operating temperature so that the operating temperature changes stepwise from the inner peripheral side to the outer peripheral side of each heat generating disk. Magnetic air-conditioning system to do.   The average value of the operating temperature of the magnetocaloric materials arranged in the radial direction of each of the heat generating disks changes stepwise as the stacking position of the heat generating disks moves from one side to the other side. 9. A magnetic air conditioner according to 9.   The magnetocaloric material having a different operating temperature is arranged on the heat generating disk so that the operating temperature gradually increases from the inner circumference side toward the outer circumference side. The magnetic air conditioner according to 10. In each of the heat generating disks, the operating temperature of the magnetocaloric material disposed at the innermost and outermost positions of each heat generating disk increases as the heat generating disk is stacked from one side to the other side. The magnetic heating / cooling apparatus according to any one of claims 8 to 10, wherein a magnetocaloric material having a different operating temperature is arranged on each heat generating disk so as to increase stepwise.   In each of the heat generating disks, the average value of the operating temperatures of the magnetocaloric materials arranged in the radial direction of each of the heat generating disks is increased as the heat generating disk is stacked from one side to the other side. The magnetic air-conditioning apparatus according to any one of claims 8 to 10, wherein a magnetocaloric material having a different operating temperature is arranged on each heat generating disk. A magnetic air conditioner according to any one of claims 7 to 13,
A plurality of outer peripheral refrigerant passages formed along the outer periphery of the set of the heat generating disk and the magnetic field applying disk, and transferring heat between the magnetocaloric material and the refrigerant located at the outer peripheral end of the heat generating disk;
A series connection passage for connecting arbitrary peripheral refrigerant passages of the plurality of peripheral refrigerant passages in series;
An outer peripheral fan attached to the outer periphery of at least one of the rotating heat generating disk and the magnetic field applying disk in order to flow the refrigerant in the plurality of outer peripheral refrigerant passages in the rotation direction of the heat generating disk or the magnetic field applying disk; ,
An inner circumferential refrigerant passage formed along an inner circumference of the heat generating disk and the magnetic field application disk;
An inner peripheral fan attached to the inner periphery of at least one of the rotating heat generating disk and the magnetic field applying disk in order to flow the refrigerant in the inner peripheral refrigerant passage in the stacking direction of the heat generating disk and the magnetic field applying disk. When,
Is further provided. The refrigerant flow generated by the plurality of outer peripheral refrigerant passages and the serial connection passage is directed in the direction in which the heat generating disk and the magnetic field application disk are stacked, and the refrigerant flow generated by the inner peripheral refrigerant passage is the heat. The magnetic air conditioner according to claim 14, wherein the direction in which the generation disk and the magnetic field application disk are stacked is the same direction. The refrigerant flow generated by the plurality of outer peripheral refrigerant passages and the serial connection passage is directed in the direction in which the heat generating disk and the magnetic field application disk are stacked, and the refrigerant flow generated by the inner peripheral refrigerant passage is the heat. The magnetic air conditioner according to claim 14, wherein a direction toward the stacking direction of the generation disk and the magnetic field application disk is a reverse direction.   The magnetic air conditioner according to any one of claims 14 to 16, wherein the refrigerant flowing through the outer peripheral refrigerant passage and the inner peripheral refrigerant passage is air. A magnetocaloric material ambient temperature detection sensor for detecting the ambient temperature of the magnetocaloric material on the heat generating disk;
A low-temperature side heat exchange unit that detects temperatures of the low-temperature side heat exchange unit and the high-temperature side heat exchange unit;
A temperature setting unit for setting the air conditioning temperature in the room;
At least one of the magnetic application disk and the heat generation disk using the ambient air temperature of the magnetocaloric material ambient temperature detection sensor, the low temperature side heat exchange part high temperature side heat exchange part temperature detection sensor, and the temperature setting part. A control unit for controlling one of the rotation speeds;
The magnetic air conditioner according to any one of claims 5, 6, and 17, characterized by comprising: An outer peripheral inflow air temperature sensor for detecting a temperature of air flowing into the outer peripheral refrigerant passage;
An outer peripheral outflow air temperature sensor for detecting a temperature of air flowing out from the outer peripheral refrigerant passage;
An inner peripheral inflow air temperature sensor for detecting the temperature of the air flowing into the inner peripheral refrigerant passage;
An inner peripheral outflow air temperature sensor for detecting the temperature of the air flowing out from the inner peripheral refrigerant passage;
An outer peripheral refrigerant passage pump for supplying air to the outer peripheral refrigerant passage;
An inner peripheral refrigerant passage pump for supplying air to the inner peripheral refrigerant passage;
Using the detected temperatures of the outer peripheral inflow air temperature sensor, the outer peripheral outflow air temperature sensor, the inner peripheral inflow air temperature sensor, and the inner peripheral outflow air temperature sensor, the outer peripheral refrigerant passage pump and the inner peripheral refrigerant passage pump The magnetic air-conditioning apparatus according to claim 18, further comprising a pump control unit that controls the operation of the apparatus.   The pump control unit increases the air outflow amount of the outer refrigerant passage pump when more cooling capacity is required, and the air outflow of the inner refrigerant passage pump when more heating capacity is required. The magnetic air conditioner according to claim 19, wherein the amount is increased. A low-temperature side radiator that performs heat exchange between the air flowing through the outer peripheral refrigerant passage and external air;
A high-temperature side radiator that performs heat exchange between the air flowing through the inner refrigerant passage and external air;
A fan for a low-temperature side radiator that blows the outside air to the low-temperature side radiator;
A high-temperature radiator fan for blowing the external air to the high-temperature radiator;
Using the detected temperatures of the outer peripheral inflow air temperature sensor, the outer peripheral outflow air temperature sensor, the inner peripheral inflow air temperature sensor, and the inner peripheral outflow air temperature sensor, the low temperature side radiator fan and the high temperature side radiator fan The magnetic air conditioner according to claim 19 or 20, further comprising a fan control unit that controls the operation.   The fan control unit increases the air volume of the low-temperature side radiator fan when more cooling capacity is required, and increases the air volume of the high-temperature side radiator fan when more heating capacity is required. The magnetic air conditioner according to claim 21, wherein Either one of the magnetic application disk and the heat generating disk is rotated by an outer rotor motor,
The magnetic air conditioner according to any one of claims 18 to 22, wherein the air conditioning control unit controls a rotation speed of the outer rotor motor.