JP5906834B2 - 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 generate cold air and hot air and can also perform dehumidification.

  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 taking out the transported heat to the outside. No arrangement is disclosed. The magnetic refrigerator needs a configuration for efficiently taking out the transported heat to the outside. If the transported heat cannot be efficiently taken out, heat is generated in the magnetic refrigerator, and the thermal efficiency of the magnetic refrigerator is significantly reduced.

  In order to extract heat to the outside, a conceivable configuration is that a refrigerant path for hot air and cold air is provided in the inner and outer peripheries of the magnetic refrigerator, and air is circulated through the refrigerant path so that hot air and cold air are circulated. It is the composition of obtaining. In this case, simply providing a refrigerant passage cannot efficiently generate cold air and hot air, and cannot provide a dehumidifying function.

  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 generate cold air and hot air and can also perform dehumidification.

  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 air conditioner that transports heat in a direction crossing the rotational direction by rotating 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 has an outer peripheral refrigerant passage, an inner peripheral refrigerant passage, and a circulation passage. The outer peripheral refrigerant passage is formed along the outer periphery of the heat generating disk and the magnetic field application disk, and the heat transported by the heat generating disk to the outer peripheral side is transferred to the refrigerant and taken out to the outside. The inner peripheral refrigerant passage is formed along the inner periphery of the heat generating disk and the magnetic field application disk, and heat transferred from the heat generating disk to the inner peripheral side is transferred to the refrigerant and taken out to the outside. The circulation passage allows the outer peripheral refrigerant passage and the inner peripheral refrigerant passage to communicate with each other, and can arbitrarily connect the outer peripheral refrigerant passage or the inner peripheral refrigerant passage. Therefore, the cooling capacity and the heating capacity can be adjusted. The circulation passage can also be dehumidified by removing the condensed water from the refrigerant flowing through the outer refrigerant passage and heating it. The outer peripheral refrigerant passage and the inner peripheral refrigerant passage are divided into a plurality of groups in the stacking direction of the heat generation disk and the magnetic field application disk. One group connects the outer peripheral refrigerant passage and the inner peripheral refrigerant passage through the circulation passage, and the other group uses the outer peripheral refrigerant passage and the inner peripheral refrigerant passage independently.

  According to the magnetic air conditioner according to the present invention having the above-described configuration, since the circulation passage that connects the outer peripheral refrigerant passage and the inner peripheral refrigerant passage is provided, the outer peripheral refrigerant passage or the inner peripheral refrigerant passage is arbitrarily connected. Cooling capacity and heating capacity can be adjusted. In addition, the condensed water can be removed from the refrigerant flowing through the outer peripheral refrigerant passage or the inner peripheral refrigerant passage, heated, and supplied to the outside. That is, the dehumidifying function can be given to the magnetic air conditioner.

It is an external view of the magnetic air conditioning apparatus which concerns on this embodiment. It is AA sectional drawing of FIG. It is a block diagram of a magnetic field application disk. It is a block diagram of a heat generation disk. It is a figure where it uses for description of an effect | action of a circulation path. The detail of the circulation path of the magnetic air conditioning apparatus which concerns on this embodiment is shown. It is a block diagram of the control system of the magnetic air conditioning apparatus which concerns on this embodiment. It is an operation | movement flowchart of a controller. It is an operation | movement flowchart of the mode 1 in a controller. It is an operation | movement flowchart of the mode 2 or 3 in a controller. It is an operation | movement flowchart of the other mode in a controller. It is operation | movement explanatory drawing of the valve | bulb in each operation mode. It is a figure which shows the condition of the air flow in each operation mode.

  Below, the magnetic air conditioning apparatus which concerns on this embodiment is demonstrated.

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

  The magnetic air conditioner 100 is formed of two cores, an upper core 100A and a lower core 100B. Each of the upper core 100A and the lower core 100B has a cylindrical shape having the same diameter.

  A concentric cylindrical outer refrigerant passage 200A extending from the bottom surface to the upper surface is formed in the outer peripheral portion of the upper core 100A over the entire circumference of the upper core 100A. Note that the bottom surface of the outer peripheral refrigerant passage 200A is closed. Therefore, only the upper surface of the outer peripheral refrigerant passage 200A is opened. An inlet 200AIN for allowing air as a refrigerant to flow into the outer peripheral refrigerant passage 200A is attached to the bottom surface side of the upper core 100A. An outlet 200AOUT is formed on the upper surface side of the upper core 100A to allow the air flowing in from the inlet 200AIN to flow out.

  In the present embodiment, the air that flows in from the inlet 200AIN and flows through the outer refrigerant passage 200A is cooled to reach the outlet 200AOUT. In the present embodiment, air is exemplified as the refrigerant, but a gas refrigerant other than air may be used as long as it has excellent heat transfer characteristics.

  An outer rotor motor 300M is attached to the center of the upper surface of the upper core 100A. A cylindrical rotor 310A is attached to the outer periphery of the outer rotor motor 300M. A clutch 300Ca is attached to the lower portion of the rotor 310A.

  A concentric cylindrical inner peripheral refrigerant passage 320A extending from the bottom surface of the upper core 100A to the upper surface along the outer periphery of the rotor 310A is formed in a region between the outer periphery of the rotor 310A and a part away from the outer periphery. The bottom surface of the inner peripheral refrigerant passage 320A is closed in the same manner as the bottom surface of the outer peripheral refrigerant passage 200A. Therefore, only the upper surface of the inner peripheral refrigerant passage 320A is opened. An inlet 320AIN for allowing air to flow into the inner peripheral refrigerant passage 320A is attached to the bottom surface side of the upper core 100A. On the upper surface side of the upper core 100A, an outlet 320AOUT is formed through which air flowing in from the inlet 320AIN flows out.

  In the present embodiment, the air flowing in from the inlet 320AIN and flowing through the inner peripheral refrigerant passage 320A is heated up to the outlet 320AOUT.

  In the above, the case where the air flowing in from the inlet 200AIN of the outer refrigerant passage 200A is cooled in the outer refrigerant passage 200A is illustrated. However, the air flowing in from the inlet 200AIN of the outer refrigerant passage 200A may be heated in the outer refrigerant passage 200A. Further, in the above, the case where the air flowing in from the inlet 330AIN of the inner peripheral refrigerant passage 320A is heated in the inner peripheral refrigerant passage 320A is illustrated. However, the air flowing in from the inlet 330AIN of the inner peripheral refrigerant passage 320A may be cooled in the inner peripheral refrigerant passage 320A.

  A concentric cylindrical outer refrigerant passage 200B extending from the bottom surface to the upper surface is formed on the outer periphery of the lower core 100B over the entire circumference of the lower core 100B. Note that the upper surface and the bottom surface of the outer peripheral refrigerant passage 200B are closed. An inlet 200BIN is attached to the bottom surface side of the lower core 100B to allow air as a refrigerant to flow into the outer refrigerant passage 200B. An outlet 200BOUT is formed on the upper surface side of the lower core 100B to allow the air flowing in from the inlet 200AIN to flow out. Accordingly, in the outer refrigerant passage 200B, the air that has flowed in from the inlet 210BIN flows out from the outlet 200BOUT.

  In the present embodiment, the air that flows in from the inlet 200BIN and flows through the outer refrigerant passage 200B is cooled to reach the outlet 200BOUT.

  A clutch 300Cb connected to the clutch 300Ca attached to the lower part of the rotor 310A of the upper core 100A is attached to the center of the upper surface of the lower core 100B. A cylindrical rotor 310B is attached to the clutch 300Cb.

  Similar to the upper core 100A, the region between the outer periphery of the rotor 310B and a part away from the outer periphery has a concentric cylindrical inner periphery extending from the bottom surface to the upper surface of the lower core 100B along the outer periphery of the rotor 310B. A refrigerant passage 320B is formed. The upper surface of the inner peripheral refrigerant passage 320B is closed in the same manner as the upper surface of the outer peripheral refrigerant passage 200B. Therefore, only the bottom surface of the inner peripheral refrigerant passage 320B is opened. An inlet 320BIN that allows air to flow into the inner peripheral refrigerant passage 320B is attached to the upper surface side of the lower core 100B. An outlet 320BOUT is formed on the bottom surface side of the lower core 100B to allow the air flowing in from the inlet 320BIN to flow out.

  In the present embodiment, the air that flows in from the inlet 320BIN and flows through the inner peripheral refrigerant passage 320B is heated by the time it reaches the outlet 320BOUT.

  In the above, the case where the air flowing in from the inlet 200BIN of the outer refrigerant passage 200B is cooled in the outer refrigerant passage 200B and flows out from the outlet 200BOUT is illustrated. However, the air flowing in from the inlet 200BIN of the outer refrigerant passage 200B may be heated in the outer refrigerant passage 200B. Further, in the above, the case where the air that has flowed in from the inlet 330BIN of the inner peripheral refrigerant passage 320B is heated in the inner peripheral refrigerant passage 320B is illustrated. However, the air flowing in from the inlet 330BIN of the inner peripheral refrigerant passage 320B may be cooled in the inner peripheral refrigerant passage 320B.

  Although not shown in FIG. 1, the inlet 200AIN and inlet 320AIN of the upper core 100A, the inlet 200BIN, the inlet 320BIN, and the outlet 200BOUT of the lower core 100B are connected to circulation passages that connect the respective passages. The In addition, air is supplied to the inlet 200AIN, the inlet 200BIN, the inlet 320AIN, and the inlet 320BIN from an externally provided pump. The connection between the circulation path and the pump will be described later.

  FIG. 2 is a cross-sectional view taken along the line AA of FIG. As shown in the figure, the magnetic cooling / heating device 100 is separated into an upper core 100A and a lower core 100B. Outer peripheral refrigerant passages 200A and 200B are formed in the outer peripheral portions of the upper core 100A and the lower core 100B.

  An outer rotor motor 300M is attached to the center of the upper surface of the upper core 100A. A cylindrical rotor 310A is attached to the outer periphery of the outer rotor motor 300M. A clutch 300Ca is attached to the lower part of the rotor 310A. The rotor 310A is rotated in the direction indicated by the arrow by the outer rotor motor 300M.

  A clutch 300Cb connected to the clutch 300Ca attached to the lower portion of the rotor 310A of the upper core 100A is attached to the central portion of the upper surface of the lower core 100A. A cylindrical rotor 310B is attached to the clutch 300Cb. The clutches 300Ca and 300Cb are electromagnetic clutches 300C. When the clutch 300C is turned on, the clutches 300Ca and 300Cb are connected, the driving force of the outer rotor motor 300M is transmitted from the rotor 310A to the rotor 310B, and the rotor 310B rotates together with the rotor 310A.

  The rotor 310A is attached with hollow magnetic field application disks 400Aa, 400Ba, 400Ca, and 400Da that include a magnetic field application unit that applies a magnetic field to the magnetocaloric material. In addition, hollow magnetic field application disks 400Ab, 400Bb, 400Cb, and 400Db each having a magnetic field application unit that applies a magnetic field to the magnetocaloric material are attached to the rotor 310B. The magnetic field application unit is formed on both the front and back surfaces of the magnetic field application disks 400Aa-400Da and 400Ab-400Db.

  The outer peripheral surface of the rotor 300Aa and the magnetic field application disks 400Aa to 400Da, and the outer peripheral surface of the rotor 300Ab and the inner peripheral surface of the magnetic field application disks 400Ab to 400Db are firmly fitted. Therefore, when the outer rotor motor 300M rotates while the clutch 300C is ON, both the rotors 310A and 310B rotate, and the magnetic field application disks 400Aa-400Da and the magnetic field application disks 400Ab-400Db rotate simultaneously. On the other hand, in the state where the clutch 300C is OFF, only the rotor 310A rotates and the magnetic field application disks 400Aa to 400Da rotate.

  Fixed to the rotor 310A are hollow heat generating disks 410Aa, 410Ba, 410Ca provided with a magnetocaloric material and a thermal switch so as to be sandwiched between the magnetic field application disks 400Aa, 400Ba, 400Ca, 400Da with a small gap therebetween. Attached. The rotor 310B includes hollow heat generating disks 410Ab, 410Bb, and 410Cb each including a magnetocaloric material and a thermal switch so as to be sandwiched between the magnetic field application disks 400Ab, 400Bb, 400Cb, and 400Db with a small gap therebetween. It is fixed and attached. Therefore, in the upper core 100A and the lower core 100B, the magnetic field application disk and the heat generation disk are alternately stacked with a minute interval.

  A magnetocaloric material has a characteristic that its temperature rises when a magnetic field is applied, and its temperature decreases when the magnetic field is removed (positive magnetic material: some of the opposite characteristics exist). In the present 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.

  Therefore, when the outer rotor motor 300M rotates while the clutch 300C is ON, both the rotors 310A and 310B rotate, and the magnetic field application disks 400Aa to 400Da and the magnetic field application disks 400Ab to 400Db rotate all at once. Then, the magnetic field is repeatedly applied to each of the heat generating disks 410Aa-410Ca and the heat generating disks 410Ab-410Cb, and the heat moves in a direction intersecting with the rotating direction of the magnetic field applying disk.

  In the case of the present embodiment, heat moves from the outer peripheral side to the inner peripheral side of the heat generating disks 410Aa-410Ca and the heat generating disks 410Ab-410Cb. Therefore, the outer peripheral side of the heat generating disks 410Aa-410Ca and the heat generating disks 410Ab-410Cb has a lower temperature, and the inner peripheral side has a higher temperature. In contrast to this embodiment, heat may be transferred from the inner peripheral side to the outer peripheral side of the heat generating disks 410Aa-410Ca and the heat generating disks 410Ab-410Cb. In this case, the temperature is high on the outer peripheral side of the heat generating disks 410Aa-410Ca and the heat generating disks 410Ab-410Cb, and the temperature is low on the inner peripheral side thereof.

  FIG. 3 is a configuration diagram of the magnetic field application disk. FIG. 3 illustrates the configuration of the magnetic field application disk 400Aa shown in FIG. The configurations of the other magnetic field application disks 400Ba-400Da and 400Ab-400Db are the same as the configuration of the magnetic field application disk 400A.

  3A shows the front surface of the magnetic field application disk 400Aa of FIG. 3B, and FIG. 3C shows the back surface thereof. As shown in FIG. 3B, the magnetic field application disk 400Aa is formed in a disc shape. As shown in FIGS. 3A and 3C, the front and back surfaces of the magnetic field application disk 400Aa 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. 4 is a configuration diagram of the heat generating disk. FIG. 4 describes the configuration of the heat generating disk 410Aa shown in FIG. The configuration of the heat generation disks 410Ba-410Ca, 410Ab-410Cb other than the heat generation disk 410Aa is the same as that of the heat generation disk 410Aa.

  As shown in FIG. 4A, the outer periphery of the heat generating disk 410Aa faces the outer peripheral refrigerant passage 200A. The inner peripheral portion of the heat generating disk 410Aa faces the inner peripheral refrigerant passage 320A. The inner peripheral portion of the heat generating disk 410Aa is attached to the rotor 310A via a bearing 315. The rotor 310A can freely rotate via a bearing 315 with respect to the fixed heat generating disk 410Aa.

  As shown in FIGS. 4A and 4B, the position (outer peripheral part) facing the outer refrigerant passage 200A of the heat generating disk 410Aa is provided with a low temperature side heat exchanging part 450A, and the position (inner peripheral part) facing the inner peripheral refrigerant path 320A. ) Includes a high temperature side heat exchanging section 450B.

  As shown in FIG. 4A, the heat generating disk 410Aa has a region radially divided into 12 portions of 30 degrees. In each region, as shown in FIG. 4B, 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. 4 shows a positive magnetocaloric material, a negative magnetocaloric material may be used.

  As shown in FIG. 2, the magnetic field application disks 400Aa and 400Ba rotate with the heat generation disk 410Aa interposed therebetween. When the magnetic field application disks 400Aa and 400Ba rotate, magnetism is applied to and removed from the magnetocaloric material 460A-460N formed on the heat generation disk 410Aa, 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.

  With the clutch 300C turned off, air is supplied from the outside to the inlets 200AIN and 320AIN (see FIG. 1), and the rotor 310A is rotated by the outer rotor motor 300M. As shown in FIG. 4A, heat moves from the low temperature side heat exchanging section 450A toward the high temperature side heat exchanging section 450B in all 12 regions on the heat generating disks 410Aa-410Ca.

  Therefore, the temperature of the low temperature side heat exchange part 450A is relatively lower than the temperature of the high temperature side heat exchange part 450B, and cold air is obtained in the outer peripheral refrigerant passage 200A facing the low temperature side heat exchange part 450A. Moreover, the temperature of the high temperature side heat exchange part 450B becomes relatively higher than the temperature of the low temperature side heat exchange part 450A, and hot air is obtained in the inner peripheral refrigerant passage 320A facing the high temperature side heat exchange part 450B. This is the same when the rotor 310B is rotated.

  In the present embodiment, the inlets 200AIN and 200BIN, the inlets 320AIN and 3200BIN, and the outlet 200BOUT of the upper core 100A and the lower core 100B are connected via the circulation passage, thereby improving the ability to generate cold air or hot air. Or have a dehumidifying function.

  For example, when a large cooling capacity is required, the inlet 200AIN of the upper core 100A and the outlet 200BOUT of the lower core 100B are connected by a circulation path, and air is supplied from the outside to the inlet 200BIN of the lower core 100B. When the outer rotor motor 300M is moved by turning on the clutch 300C, very cold air cooled by the lower core 200B and the upper core 200A can be taken out from the outlet 200OUT of the upper core 100A.

  When a very large cooling capacity is not required, the circulation path is switched so that external air is supplied only from the inlet 200AIN of the upper core 100A, and the outer rotor motor 300M is moved with the clutch 300C turned off. Air cooled only by the core 200A can be taken out from the outlet 200OUT of the upper core 100A.

  Further, for example, as schematically shown in FIG. 5a, the outer periphery refrigerant passage 200A and the inner periphery refrigerant passage 320A of the upper core 100A are communicated by the circulation passage 500, and the air supplied from the inlet 200AIN of the upper core 100A is discharged to the outlet. It can be taken out from 320AOUT. In this state, when air is introduced from the inflow port 200AIN, the air is cooled while passing through the outer refrigerant passage 200A from the point a to the point b as shown by the solid line in FIG. Moisture contained in the air to be cooled is condensed to be condensed water and removed to the outside. The air with reduced moisture is heated as shown by the dotted line in FIG. 5B while passing through the inner peripheral refrigerant passage 320A from the point b to the point a. For this reason, dehumidification of air can be performed as a result.

  The magnetic air conditioner 100 according to the present embodiment realizes various operation modes by changing the connection state of the circulation path 500 according to the required cooling capacity, heating capacity, and dehumidifying function. The change of the operation mode is realized by switching the next refrigerant pipe and valve.

  FIG. 6 shows the details of the circulation passage of the magnetic air conditioner according to this embodiment. As shown in the figure, the inlet 200AIN connected to the outer peripheral refrigerant passage 200A is connected to a circulation passage 500A attached to the three-way valve 580V1. Further, the outlet 200BOUT connected to the outer peripheral refrigerant passage 200B is connected to a circulation passage 500B attached to the three-way valve 580V1. The circulation passage 500C attached to the three-way valve 580V1 is connected to a pump 550P1 that supplies air to the outer refrigerant passage 200A from the outside. Furthermore, the inflow port 200BIN connected to the outer peripheral refrigerant passage 200B is connected to the pump 550P1 through the circulation passage 500D.

  An inflow port 320AIN connected to the inner peripheral refrigerant passage 320A is connected to a circulation passage 500E attached to the three-way valve 580V2. Further, the inlet 320BIN connected to the inner peripheral refrigerant passage 320B is connected to a circulation passage 500F attached to the three-way valve 580V2. The circulation passage 500G attached to the three-way valve 580V2 is connected to a pump 550P2 that supplies air to the inner peripheral refrigerant passages 320A and 320B. Further, the outer peripheral refrigerant passage 200B and the inner peripheral refrigerant passage 320B are connected by a circulation passage 500H, and the circulation passage 500H is provided with a valve 580V3 for turning on and off the passage of air.

  The operation of the magnetic air conditioner 100 according to the present embodiment is controlled by a controller that controls the operation of the magnetic air conditioner 100. FIG. 7 is a block diagram of a control system of the magnetic air conditioner 100 according to the present embodiment.

  The controller 600 is connected to the valves 580V1, 580V2, and 580V3 shown in FIG. The controller 600 controls the positions of the three-way valves 580V1 and 580V2 and the ON / OFF of the valve 580V3.

  The controller 600 is connected to a clutch 300C (300Ca, 300Cb) and an outer rotor motor 300M. The controller 600 controls ON / OFF of the clutch 300C and the rotation speed of the outer rotor motor 300M.

  Pumps 550P1 and 550P2 are connected to controller 600. The controller 600 controls ON / OFF of the pump 550P1 and the pump 550P2.

  The controller 600 is connected to a temperature setter 610, a vehicle interior temperature sensor 620, an outside air temperature sensor 630, a solar radiation sensor 640, a motor temperature sensor 650, a battery temperature sensor 660, and an inverter temperature sensor 670.

  The temperature setting device 610 is provided, for example, in the vehicle interior of the vehicle, and is provided for the passenger to set the temperature in the vehicle interior. The vehicle interior temperature sensor 620 detects the temperature in the vehicle interior. The outside air temperature sensor 630 detects the temperature outside the passenger compartment. The solar radiation sensor 640 detects the solar radiation amount inserted into the passenger compartment. Motor temperature sensor 650 detects the temperature of outer rotor motor 300M. Battery temperature detection sensor 660 detects the temperature of the battery mounted on the vehicle. Inverter temperature sensor 670 detects the temperature of the inverter that drives outer rotor motor 300M. The reason for providing the motor temperature sensor 650, the battery temperature sensor 660, and the inverter temperature sensor 670 is to detect the abnormality promptly when an abnormality occurs in the outer rotor motor 300.

  Next, the operation of the controller 600 will be described based on the operation flowcharts of FIGS.

  First, the controller 600 inputs information detected by the temperature setter 610, the vehicle interior temperature sensor 620, the outside air temperature sensor 630, the solar radiation sensor 640, the motor temperature sensor 650, the battery temperature sensor 660, and the inverter temperature sensor 670. That is, information detected by all sensors is input (S100).

  The controller 600 calculates a cooling load or a heating load based on information input from these sensors, and calculates the rotation speed of the outer rotor motor 300M and the operation mode of the magnetic cooling / heating device 100 from the calculation result ( S110).

  The controller 600 operates the outer rotor motor 300M at the calculated rotation speed (S120).

  The controller 600 determines which of the mode 1 to mode 3 is the calculated operation mode of the magnetic air conditioner 100 (S130).

  The controller 600 controls the mode 1 if the calculated operation mode of the magnetic air conditioner 100 is mode 1 (S140), and controls the mode 2 or 3 if mode 2 or 3 (S150). If the control is other than 1-3, control in other modes is performed (S160).

  FIG. 9 is an operation flowchart of mode 1 in the controller 600. Mode 1 is an operation mode for causing the magnetic air conditioner 100 to perform dehumidification control as shown in FIG.

  Mode 1 is an operation mode for generating an air flow as shown in mode 1 of FIG. In the upper core 100A, air is supplied from the inflow port 210AIN, and the cooled and cooled air is supplied to the outside through the outflow port 200AOUT. In addition, air is supplied from the inflow port 320AIN, and the warmed air is supplied to the outside through the outflow port 320AOUT.

  On the other hand, in the lower core 100B, air is supplied from the inlet 210BIN, and the cooled air is supplied to the circulation passage 500H through the outer refrigerant passage 200B. The cooled air is supplied from the circulation passage 500H to the inner peripheral refrigerant passage 320B, and the heated air is supplied to the outside from the outlet 320AOUT.

  For this reason, in mode 1, the upper core 100A creates cold air and warm air, and the lower core 100B dehumidifies the air.

  In order to realize the air flow in mode 1, the controller 600 controls the operation of each three-way valve, valve, clutch, and pump as shown in the flowchart of FIG.

  The controller 600 turns on the clutch 300C, turns on the pump 550P1 and the pump 550P2, and supplies air taken from the outside to the inlets 200A1N, 200BIN, 320AIN, and 320BIN (S141).

  The controller 600 drives the three-way valve 580V1 and the three-way valve 580V2, sets the position of each three-way valve as in mode 1 of FIG. 13, and turns on the valve 580V3 (S142).

  That is, the three-way valve 580V1 communicates only with the passage from the circulation passage 500C to 500A. Therefore, as shown in FIG. 6, the air supplied from the pump 500P1 flows into the outer refrigerant passage 200A via the circulation passages 500C and 500A. On the other hand, the three-way valve 580V2 communicates only with the passage from the circulation passage 500G to 500E. Therefore, as shown in FIG. 6, the air supplied from the pump 500P2 flows through the inner peripheral refrigerant passage 320A via the circulation passages 500G and 500E.

  Further, the three-way valve 580V1 blocks air that is about to flow from the outer refrigerant passage 200B. Further, the three-way valve 580V2 blocks air that is about to flow from the circulation passage 500H. Further, since the valve 580V3 is ON, the circulation passage 500H is in a communication state. Accordingly, the circulation path 500D, the inlet 200BIN, the outer refrigerant path 200B, the circulation path 500H, and the inner circumference circulation path 320B communicate with the pump 550P1. For this reason, the air supplied from the pump 550P1 flows to the outside through the outer peripheral refrigerant passage 200B, the circulation passage 500H, and the inner peripheral circulation passage 320B.

  Mode 2 is an operation mode for generating an air flow as in mode 2 shown in FIG. The inlet 210AIN of the upper core 100A and the outlet 210BOUT of the lower core 100B are communicated, and air is supplied from the inlet 210BIN and cooled by the outer peripheral refrigerant passages 200B and 200A. The cooled air flows from the outlet 200AOUT to the outside. In addition, air is supplied from the inlets 320AIN and 320BIN, and the air heated by the inner peripheral refrigerant passages 320A and 320B and warmed flows from the outlets 320AOUT and 320BOUT to the outside. Further, a part of the air flowing through the outer peripheral refrigerant passage 200B is caused to flow to the inner peripheral refrigerant passage 320B through the circulation passage 500H, and the air is dehumidified.

  For this reason, in mode 2, both the upper core 100A and the lower core 100B produce cold air and hot air. It also dehumidifies some air.

  In order to realize the air flow in mode 2, the controller 600 controls the operation of each three-way valve, valve, clutch, and pump as shown in the flowchart of FIG.

  The controller 600 turns on the clutch 300C, turns on the pump 550P1 and the pump 550P2, and supplies air taken from the outside to the inlets 200A1N, 200BIN, 320AIN, and 320BIN (S151). When the operation mode is mode 2 (S152: mode 2), the process proceeds to the next step S153.

  The controller 600 drives the three-way valve 580V1 and the three-way valve 580V2, sets the position of each three-way valve as in mode 2 of FIG. 13, and turns on the valve 580V3 (S153).

  That is, the three-way valve 580V1 communicates with the passage from the circulation passage 500B toward the circulation passage 500H and the circulation passage 500H. Therefore, as shown in FIG. 6, the air supplied from the pump 500P1 flows into the outer refrigerant passage 200B through the circulation passage 500D, and flows into the outer refrigerant passage 200A through the circulation passages 500B and 500A. On the other hand, the three-way valve 580V2 is connected to the circulation passages 500G to 500E and 500F. Therefore, as shown in FIG. 6, the air supplied from the pump 500P2 passes through the circulation passages 500G, 500E, and 500F. Flow into the inner peripheral refrigerant passages 320A and 320B.

  Further, since the valve 580V3 is ON, the circulation passage 500H is in a communication state. Accordingly, the circulation path 500D, the inlet 200BIN, the outer refrigerant path 200B, the circulation path 500H, and the inner circumference circulation path 320B communicate with the pump 550P1. Therefore, a part of the air supplied from the pump 550P1 is branched from the outer refrigerant passage 200B, flows into the circulation passage 500H, merges with the air flowing through the circulation passage 500F, and passes through the inner peripheral circulation passage 320B. It flows to the outside. Note that the air flowing through the circulation passage 500H is higher than the pressure of the air flowing through the circulation passage 500F. Therefore, air flows through the circulation passage 500H in the direction from the outer refrigerant passage 200B toward the inner circulation passage 320B.

  Thus, in mode 2, since air flows in series in the outer refrigerant passages 200A and 200B, cold air having a lower temperature can be obtained. Further, since the cold air branched into the circulation passage 500H flows into the inner circumferential circulation passage 320B, dehumidification can be performed.

  Mode 3 is an operation mode that generates an air flow as in mode 3 shown in FIG. 12, and is a mode in which the dehumidifying function of mode 2 is removed. In this mode, as in mode 2, the inlet 210AIN of the upper core 100A and the outlet 210BOUT of the lower core 100B are communicated, and air is supplied from the inlet 210BIN and cooled by the outer refrigerant passages 200B and 200A. The cooled air is supplied to the outside from the outlet 200AOUT. In addition, air is supplied from the inlets 320AIN and 320BIN, and the heated air is heated from the outlets 320AOUT and 320BOUT through the inner peripheral refrigerant passages 320A and 320B.

  Thus, in mode 3, only the cold air and the hot air are produced in both the upper core 100A and the lower core 100B. Do not dehumidify the air.

  In order to realize the air flow in mode 3, the controller 600 controls the operation of each three-way valve, valve, clutch, and pump as shown in the flowchart of FIG.

  The controller 600 turns on the clutch 300C, turns on the pump 550P1 and the pump 550P2, and supplies air taken from the outside to the inlets 200A1N, 200BIN, 320AIN, and 320BIN (S151). When the operation mode is mode 3 (S152: mode 3), the process proceeds to the next step S154.

  The controller 600 drives the three-way valve 580V1 and the three-way valve 580V2, sets the position of each three-way valve as in mode 3 of FIG. 13, and turns off the valve 580V3 (S154).

  That is, the three-way valve 580V1 communicates with the passage from the circulation passage 500B toward the circulation passage 500H and the circulation passage 500H. Therefore, as shown in FIG. 6, the air supplied from the pump 500P1 flows to the outer refrigerant passage 200B through the circulation passage 500D. On the other hand, the three-way valve 580V2 is connected to the circulation passages 500G to 500E and 500F. Therefore, as shown in FIG. 6, the air supplied from the pump 500P2 passes through the circulation passages 500G, 500E, and 500F. Flow into the inner peripheral refrigerant passages 320A and 320B.

  Further, since the valve 580V3 is OFF, the circulation passage 500H is in a closed state. Therefore, even if the three-way valve 580V1 communicates with the circulation passage 500H, the valve 580V3 blocks the air that is about to flow into the circulation passage 500H from the outer refrigerant passage 200B. Similarly, the air that attempts to flow into the circulation passage 500H from the circulation passage 500F is blocked.

  As described above, in mode 3, since air flows in series in the outer refrigerant passages 200A and 200B, cold air having a lower temperature can be obtained.

  Next, an example of operation modes other than modes 1-3 will be described. The other operation mode illustrated in FIG. 13 is a mode in which the clutch 300C shown in FIGS. 1 and 2 is turned off and only the upper core 100A is driven. In this mode, air is supplied from the inlet 210AIN and the inlet 320AIN of the upper core 100A, and the supplied air is cooled by the outer refrigerant passage 200A and heated by the inner refrigerant passage 320A. The cooled air is supplied to the outside from the outlet 200AOUT. The heated air is supplied to the outside from the outlet 320AOUT.

  In order to realize the air flow in the other operation modes illustrated in FIG. 13, the controller 600 controls the operations of the three-way valves, valves, clutches, and pumps as shown in the flowchart of FIG. 11.

  The controller 600 turns off the clutch 300C, turns on the pump 550P1 and the pump 550P2, and supplies air taken in from the outside to the inlets 200A1N, 200BIN, 320AIN, and 320BIN (S161).

  The controller 600 drives the three-way valve 580V1 and the three-way valve 580V2, sets the position of each three-way valve as in the other mode of FIG. 13, and turns off the valve 580V3 (S162).

  That is, the three-way valve 580V1 communicates only with the passage from the circulation passage 500C to 500A. Therefore, as shown in FIG. 6, the air supplied from the pump 500P1 flows into the outer refrigerant passage 200A via the circulation passages 500C and 500A. On the other hand, the three-way valve 580V2 communicates only with the passage from the circulation passage 500G to 500E. Therefore, as shown in FIG. 6, the air supplied from the pump 500P2 flows through the inner peripheral refrigerant passage 320A via the circulation passages 500G and 500E.

  Further, the three-way valve 580V1 blocks air that is about to flow into the outer refrigerant passage 200B. Further, the three-way valve 580V2 blocks air that is about to flow into the circulation passage 500H.

  Thus, in other modes, only the upper core 100A is driven by the outer rotor motor 300M, and air flows through the outer peripheral refrigerant passage 200A and the inner peripheral refrigerant passage 320A, so that cold air and hot air can be obtained. This mode is used when the cooling and heating capacity is small.

  As described above, according to the magnetic air conditioner according to the present embodiment, cold air and hot air can be efficiently generated according to the required cooling capacity, and the air can be dehumidified. In the present embodiment, modes 1-3 and other modes have been described. However, various modes can be realized by changing the way of connecting the circulation paths.

  According to the magnetic cooling / heating device according to the present embodiment, by having the outer peripheral refrigerant passage, the inner peripheral refrigerant passage, and the circulation passage, it is possible to dehumidify the air passing through the outer peripheral refrigerant passage with a simple configuration.

  According to the magnetic air conditioner according to the present embodiment, one group communicates the outer peripheral refrigerant passage and the inner peripheral refrigerant passage with the circulation passage, and the other group uses the outer peripheral refrigerant passage and the inner peripheral refrigerant passage independently. be able to. For this reason, it can have simultaneously the refrigerant path which dehumidifies, and the refrigerant path which does not dehumidify, and can perform various cooling and heating modes.

  According to the magnetic cooling / heating apparatus according to the present embodiment, since the two groups of refrigerant passages are arbitrarily connected, various cooling / heating controls are possible.

  According to the magnetic cooling / heating apparatus according to the present embodiment, the upper core and the lower core can be connected or disconnected by the clutch, so that various cooling / heating controls can be performed according to the required cooling and heating capacity.

100 Magnetic air conditioner,
100A upper core,
100B lower core,
200A, 200B outer peripheral refrigerant passage,
200AIN, 200BIN, 320AIN, 320BIN Inlet,
200 AOUT, 200 BOUT, 320 AOUT, 320 BOUT outlet,
300C clutch,
300M outer rotor motor,
310A, 310B rotor,
315 bearing,
320A, 320B inner peripheral refrigerant passage,
400Aa-400Da, 400Ab-400Db magnetic field application disk,
410Aa-410Ca, 410Ab-410Cb 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 magnetocaloric material,
470A-470N + 1 Thermal switch.

500, 500A-500H circulation passage,
550P1, 550P2 pump,
580V1, 580V2 three-way valve,
580V3 valve,
610 temperature setter,
620 interior temperature sensor,
630 outside air temperature sensor,
640 solar radiation sensor,
650 motor temperature sensor,
660 battery temperature sensor,
670 Inverter temperature sensor.

Claims (2)

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,
An outer peripheral refrigerant passage formed along an outer periphery of the heat generation disk and the magnetic field application disk;
An inner circumferential refrigerant passage formed along an inner circumference of the heat generating disk and the magnetic field application disk;
Have a, a circulation passage communicating with said inner refrigerant passage with the outer circumferential refrigerant passage,
The outer peripheral refrigerant passage and the inner peripheral refrigerant passage are divided into a plurality of groups in the stacking direction of the heat generation disk and the magnetic field application disk,
One group communicates the outer peripheral refrigerant passage and the inner peripheral refrigerant passage with the circulation passage,
Other groups magnetic air conditioner according to claim Rukoto used independently and the inner peripheral coolant passage and the outer circumferential refrigerant passage. 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,
An outer peripheral refrigerant passage formed along an outer periphery of the heat generation disk and the magnetic field application disk;
An inner circumferential refrigerant passage formed along an inner circumference of the heat generating disk and the magnetic field application disk;
A circulation passage communicating the outer peripheral refrigerant passage and the inner peripheral refrigerant passage;
The outer peripheral refrigerant passage and the inner peripheral refrigerant passage are divided into a plurality of groups in the stacking direction of the heat generation disk and the magnetic field application disk,
A magnetic air conditioner having an inlet for connecting at least the outer peripheral refrigerant passage and the inner peripheral refrigerant passage between groups and allowing refrigerant to flow into the outer peripheral refrigerant passage and the inner peripheral refrigerant passage .