Magnetic cooling device and cooling cycle device including same

Abstract

This cooling cycle device may comprise: a first heat exchanger provided to dissipate heat; a second heat exchanger provided to absorb heat; and a magnetic cooling device disposed between the first heat exchanger and the second heat exchanger and provided to operate by sequentially switching between a first mode and a second mode. The magnetic cooling device may comprise: a magnetocaloric material; a magnet provided to form a magnetic field; and a current generating device provided to generate a current.

Description

Self-cooling device and cooling cycle device including the same

[0001] The present disclosure relates to a self-cooling device and a cooling cycle device including the same.

[0002] Generally, among home appliances, refrigerators and air conditioners include cooling devices to supply cold air to spaces requiring cooling. For example, a refrigerator includes a cooling device to supply cold air to the storage compartment where food is stored in order to keep food fresh for a long period. For example, an air conditioner includes a cooling device to supply cold air to an indoor space to regulate the temperature and humidity to suit human activity.

[0003] Refrigerators and air conditioners utilizing related technologies employ cooling cycle devices that repeatedly compress and expand refrigerants. However, the refrigerants used in the operation of these cooling cycle devices can accelerate global warming. Additionally, there is a risk of explosion due to refrigerant leaks.

[0004] Therefore, there has been a demand for eco-friendly cooling devices that do not accelerate global warming and have a low risk of explosion. Among these, cooling cycle devices utilizing the magnetocaloric effect are being researched because they can realize eco-friendly cooling without using refrigerants of related technologies.

[0005] One aspect of the present disclosure provides an environmentally friendly magnetic cooling device and a cooling cycle device including the same.

[0006] One aspect of the present disclosure provides a magnetic cooling device with improved ease of use and a cooling cycle device including the same.

[0007] One aspect of the present disclosure provides a self-cooling device of a simple structure and a cooling cycle device including the same.

[0008] One aspect of the present disclosure provides a self-cooling device that does not require a pump and a cooling cycle device including the same.

[0009] One aspect of the present disclosure provides a self-cooling device with reduced noise and a cooling cycle device including the same.

[0010] One aspect of the present disclosure provides a self-cooling device with improved heat transfer efficiency and a cooling cycle device including the same.

[0011] The technical problems to be solved in this document are not limited to those mentioned above, and other technical problems not mentioned will be clearly understood by those skilled in the art to which this invention belongs from the description below.

[0012] A cooling cycle device according to one embodiment of the present disclosure comprises: a first heat exchanger arranged to release heat; a second heat exchanger arranged to absorb heat; and a magnetic cooling device disposed between the first heat exchanger and the second heat exchanger and arranged to operate by sequentially switching between a first mode and a second mode. The magnetic cooling device comprises: a magnetic heat quantity material arranged to allow a heat transfer fluid to flow; a magnet arranged to form a magnetic field around the magnetic heat quantity material; and a current generating device disposed adjacent to the magnetic heat quantity material and arranged to generate a current. In the first mode, the magnet approaches the magnetic heat quantity material, and the current generating device generates a current in a first direction to cause a heat transfer fluid having an elevated temperature to flow toward the first heat exchanger. In the second mode, the magnet moves away from the magnetic heat quantity material, and the current generating device generates a current in a second direction to cause a heat transfer fluid having a lowered temperature to flow toward the second heat exchanger.

[0013] A magnetic cooling device according to one embodiment of the present disclosure may include: a magnetic heat material whose temperature changes based on a magnetic field; a magnet that forms a magnetic field around the magnetic heat material; and a current generating device provided to generate an electric current. When the magnet approaches the magnetic heat material, the current generating device may generate an electric current in a first direction to move a heat transfer fluid having an elevated temperature in a second direction intersecting the first direction. When the magnet moves away from the magnetic heat material, the current generating device may generate an electric current in a third direction to move a heat transfer fluid having a lowered temperature in a fourth direction.

[0014] A cooling cycle device according to one embodiment of the present disclosure may include: a first heat exchanger configured to release heat; a second heat exchanger configured to absorb heat; and a magnetic cooling device disposed between the first heat exchanger and the second heat exchanger. The magnetic cooling device may include: a magnetic heat quantity material whose temperature changes based on a magnetic field; and a current generating device that generates a current in a first direction in the magnetic heat quantity material or generates a current in a second direction in the magnetic heat quantity material. A heat transfer fluid having an elevated temperature may flow toward the first heat exchanger by the current in the first direction. A heat transfer fluid having a lowered temperature may flow toward the second heat exchanger by the current in the second direction.

[0015] The above and other aspects, features, and advantages of specific embodiments of the present disclosure will become more apparent from the following description with reference to the accompanying drawings.

[0016] FIG. 1 is a schematic diagram of a cooling cycle device according to one embodiment.

[0017] FIG. 2 is a perspective view of a magnetic cooling device according to one embodiment.

[0018] FIG. 3 is a schematic diagram of a magnetic cooling device according to one embodiment.

[0019] FIG. 4 schematically illustrates a state in which a magnetic cooling device according to one embodiment operates in a first mode.

[0020] FIG. 5 schematically illustrates a state in which a magnetic cooling device according to one embodiment operates in a second mode.

[0021] FIG. 6 is a graph showing an example of the operation of a magnetic cooling device according to one embodiment.

[0022] FIG. 7 is a table showing an example of the operation of a magnetic cooling device according to one embodiment.

[0023] FIG. 8 is a table showing an example of the operation of a magnetic cooling device according to one embodiment.

[0024] FIG. 9 is a control block diagram of a cooling cycle device according to one embodiment.

[0025] FIG. 10 is a schematic diagram of a magnetic cooling device according to one embodiment.

[0026] FIG. 11 is a schematic diagram of a cooling cycle device according to one embodiment.

[0027] FIG. 12 is a schematic diagram of a magnetic cooling device according to one embodiment.

[0028] FIG. 13 is a schematic diagram of a cooling cycle device including the magnetic cooling device shown in FIG. 12.

[0029] FIG. 14 is a perspective view of a home appliance including a cooling cycle device according to one embodiment.

[0030] FIG. 15 is a perspective view of a home appliance including a cooling cycle device according to one embodiment.

[0031] FIG. 16 is a side cross-sectional view of a home appliance including a cooling cycle device according to one embodiment.

[0032] The various embodiments of this document and the terms used therein are not intended to limit the technical features described in this document to specific embodiments, and should be understood to include various modifications, equivalents, or substitutions of said embodiments.

[0033] In relation to the description of the drawings, similar reference numerals may be used for similar or related components.

[0034] The singular form of the noun corresponding to the item may include one or multiple items, unless the relevant context clearly indicates otherwise.

[0035] In this document, each of the phrases such as "A or B", "at least one of A and B", "at least one of A or B", "A, B or C", "at least one of A, B and C", and "at least one of A, B, or C" may include any one of the items listed together in the corresponding phrase, or all possible combinations thereof.

[0036] The term "and / or" includes a combination of multiple related described components or any of the multiple related described components.

[0037] The terms "part," "module," and "component" may be implemented in hardware or software. Depending on the embodiments, a plurality of "parts," "modules," and "components" may be implemented as a single component, or a single "part," "module," or "component" may include a plurality of components.

[0038] Terms such as "first," "second," or "first" or "second" may be used simply to distinguish a component from another component and do not limit the components in other aspects (e.g., importance or order).

[0039] Where any (e.g., 1st) component is referred to as "coupled" or "connected" to another (e.g., 2nd) component, with or without the terms "functionally" or "communicationly," it means that said any component may be connected to said other component directly (e.g., via a wire), wirelessly, or through a third component.

[0040] Terms such as "include" or "have" are intended to specify the existence of the features, numbers, steps, actions, components, parts, or combinations thereof described in this document, and do not preclude the existence or addition of one or more other features, numbers, steps, actions, components, parts, or combinations thereof.

[0041] When it is said that a component is "connected," "combined," "supported," or "in contact" with another component, this includes not only cases where the components are directly connected, combined, supported, or in contact, but also cases where they are indirectly connected, combined, supported, or in contact through a third component.

[0042] When it is said that a component is located "on" another component, this includes not only cases where one component is in contact with the other, but also cases where another component exists between the two components.

[0043] Hereinafter, one or more embodiments according to the present invention will be described in detail with reference to the attached drawings.

[0044] FIG. 1 is a schematic diagram of a cooling cycle device according to one embodiment.

[0045] Referring to FIG. 1, the cooling cycle device (1) may include a first heat exchanger (100) and a second heat exchanger (200). The first heat exchanger (100) may be configured to release heat. The second heat exchanger (200) may be configured to absorb heat.

[0046] For example, if the home appliance including the cooling cycle device (1) is a refrigerator, the first heat exchanger (100) can release heat to the outside of the refrigerator body, and the second heat exchanger (200) can absorb heat from the air flowing into the storage room.

[0047] For example, if the home appliance including the cooling cycle device (1) is an air conditioner, the first heat exchanger (100) is provided in the outdoor unit of the air conditioner to release heat to the outside of the outdoor unit, and the second heat exchanger (200) is provided in the indoor unit to absorb heat from the air flowing into the indoor unit.

[0048] The cooling cycle device (1) may include a magnetic cooling device (300). The magnetic cooling device (300) may be placed between the first heat exchanger (100) and the second heat exchanger (200).

[0049] The self-cooling device (300) can be configured to allow heat transfer fluid to flow.

[0050] Heat transfer fluids can release and / or absorb heat. Heat transfer fluids can be electrically conductive. Heat transfer fluids can be configured to allow current to flow. For example, heat transfer fluids may include liquid metals. For example, heat transfer fluids may include Galinstan (Ga+In+Sn). As will be described later, heat transfer fluids may be affected by magnetic and electric fields. Heat transfer fluids may move by electromagnetic forces. Heat transfer fluids may flow under the influence of Lorentz forces. A detailed explanation of this will be provided later.

[0051] The heat transfer fluid flowing through the self-cooling device (300) according to one embodiment of the present disclosure may not be a refrigerant or antifreeze of the relevant technology. Compared to a cooling device (or cooling cycle device) that uses a refrigerant of the relevant technology, the self-cooling device (300) of the present disclosure may reduce the risk of global warming and / or explosion. The self-cooling device (300) of the present disclosure is environmentally friendly as it does not contain a refrigerant of the relevant technology. In addition, compared to a cooling device (or cooling cycle device) that uses only conventional antifreeze, the heat transfer efficiency of the self-cooling device (300) of the present disclosure may be increased. For example, the thermal conductivity of the heat transfer fluid may be approximately 30 to 120 times the thermal conductivity of the antifreeze. However, the present disclosure is not limited to the examples described above, and the numerical range described above may vary depending on the type of heat transfer fluid.

[0052] The magnetic cooling device (300) can heat the heat transfer fluid flowing through the magnetic cooling device (300). For example, the heat transfer fluid heated in the magnetic cooling device (300) can flow toward the first heat exchanger (100). The magnetic cooling device (300) can cool the heat transfer fluid flowing through the magnetic cooling device (300). For example, the heat transfer fluid cooled in the magnetic cooling device (300) can flow toward the second heat exchanger (200).

[0053] The magnetic cooling device (300) can utilize the magnetic heat quantity effect. The magnetic cooling device (300) can raise the temperature of the heat transfer fluid by utilizing the magnetic heat quantity effect. The magnetic cooling device (300) can heat the heat transfer fluid flowing through the magnetic cooling device (300) by utilizing the magnetic heat quantity effect. The magnetic cooling device (300) can lower the temperature of the heat transfer fluid by utilizing the magnetic heat quantity effect. The magnetic cooling device (300) can cool the heat transfer fluid flowing through the magnetic cooling device (300) by utilizing the magnetic heat quantity effect.

[0054] The cooling cycle device (1) may include a plurality of flow paths (410, 420, 430, 440). The plurality of flow paths (410, 420, 430, 440) may be arranged to connect a plurality of heat exchangers (100, 200) and a self-cooling device (300). For example, a heat transfer fluid may flow within each of the flow paths (410, 420, 430, 440) (or along each of the flow paths (410, 420, 430, 440)). For example, a working fluid that has performed heat exchange with the heat transfer fluid may flow within each of the flow paths (410, 420, 430, 440).

[0055] A plurality of flow paths (410, 420, 430, 440) may include a first flow path (410). The first flow path (410) may be arranged to connect the second heat exchanger (200) and the magnetic cooling device (300). The first flow path (410) may be positioned between the second heat exchanger (200) and the magnetic cooling device (300). For example, the first flow path (410) may be arranged to guide a heat transfer fluid toward the magnetic cooling device (300) from the second heat exchanger (200).

[0056] A plurality of flow paths (410, 420, 430, 440) may include a second flow path (420). The second flow path (420) may be arranged to connect the magnetic cooling device (300) and the first heat exchanger (100). The second flow path (420) may be positioned between the magnetic cooling device (300) and the first heat exchanger (100). For example, the second flow path (420) may be arranged to guide a heat transfer fluid from the magnetic cooling device (300) toward the first heat exchanger (100). For example, a heat transfer fluid heated in the magnetic cooling device (300) may flow within the second flow path (420).

[0057] A plurality of flow paths (410, 420, 430, 440) may include a third flow path (430). The third flow path (430) may be arranged to connect the first heat exchanger (100) and the magnetic cooling device (300). The third flow path (430) may be positioned between the first heat exchanger (100) and the magnetic cooling device (300). For example, the third flow path (430) may be arranged to guide a heat transfer fluid toward the magnetic cooling device (300) from the first heat exchanger (100).

[0058] A plurality of flow paths (410, 420, 430, 440) may include a fourth flow path (440). The fourth flow path (440) may be arranged to connect the magnetic cooling device (300) and the second heat exchanger (200). The fourth flow path (440) may be positioned between the magnetic cooling device (300) and the second heat exchanger (200). For example, the fourth flow path (440) may be arranged to guide a heat transfer fluid from the magnetic cooling device (300) toward the second heat exchanger (200). For example, a heat transfer fluid cooled in the magnetic cooling device (300) may flow within the fourth flow path (440).

[0059] Euros can be referred to as pipes, guides, channels, conduits, ducts, etc.

[0060] In FIG. 1, the cooling cycle device (1) is shown to include four flow paths (410, 420, 430, 440), but there is no limitation on the number of flow paths. For example, some of the multiple flow paths (410, 420, 430, 440) may be formed integrally. For example, the cooling cycle device (1) may include additional flow paths other than the multiple flow paths (410, 420, 430, 440) shown in FIG. 1. Also, the ordinal numbers of the "first flow path (410)", "second flow path (420)", "third flow path (430)", and "fourth flow path (440)" do not limit their configuration.

[0061] FIG. 2 is a perspective view of a magnetic cooling device according to one embodiment. FIG. 3 is a schematic diagram of a magnetic cooling device according to one embodiment.

[0062] The terms "first direction (d1)," "second direction (d2)," "third direction (d3)," "fourth direction (d4)," "fifth direction (d5)," and "sixth direction (d6)" used in the following description are defined based on the drawings, and the shape and position of each component are not limited by these terms. For example, the direction of the current described below may be the first direction (d1) or the second direction (d2). For example, the direction of movement of the heat transfer fluid described below may be the third direction (d3) or the fourth direction (d4). For example, the direction of the magnetic field described below may be the fifth direction (d5) or the sixth direction (d6). For example, the direction of the current, the direction of movement of the heat transfer fluid, and the direction of the magnetic field may be arranged to be orthogonal to each other. In addition, the first direction (d1), the second direction (d2), the third direction (d3), the fourth direction (d4), the fifth direction (d5), and the sixth direction (d6) do not have their composition limited by ordinal numbers.

[0063] The magnetic cooling device (300) may include a magnetic heat material (310). The magnetic heat material (310) is a material capable of utilizing the magnetic heat effect. The magnetic heat effect refers to the effect in which, in response to applying a magnetic field to a magnetic material, the magnetic moments within the magnetic material align in the direction of the magnetic field and the temperature of the magnetic material changes. The magnetic heat material (310) can change temperature as the magnetic moments within the magnetic heat material (310) align in response to the application of a magnetic field. The magnetic heat material (310) can change temperature based on the applied magnetic field.

[0064] For example, the magnetic calorimetric material (310) may include materials having a magnetic calorimetric effect, such as gadolinium, iron-based alloys, or rare earth metal alloys. However, the present disclosure is not limited to the examples described above, and the magnetic calorimetric material (310) may include various materials having a magnetic calorimetric effect.

[0065] The magnetic cooling device (300) can change the temperature of the heat transfer fluid by allowing the heat transfer fluid to flow through a space (or flow path) where the magnetic heat material (310) is placed. The heat transfer fluid can be arranged to flow through the magnetic heat material (310). As the heat transfer fluid exchanges heat with the magnetic heat material (310), the temperature of the heat transfer fluid may change.

[0066] The magnetic cooling device (300) may operate in a first mode (M1, see FIG. 4 and FIG. 6) or in a second mode (M2, see FIG. 5 and FIG. 6). The magnetic cooling device (300) may be configured to operate by sequentially switching between the first mode (M1) and the second mode (M2). When the magnetic cooling device (300) operates in the first mode (M1), the magnetic cooling device (300) may move the heated heat transfer fluid toward the first heat exchanger (100). While the magnetic cooling device (300) operates in the first mode (M1), the magnetic cooling device (300) may cause the heat transfer fluid with increased temperature to flow in a third direction (d3). When the magnetic cooling device (300) operates in the second mode (M2), the magnetic cooling device (300) may move the cooled heat transfer fluid toward the second heat exchanger (200). While the magnetic cooling device (300) is operating in the second mode (M2), the magnetic cooling device (300) can cause the heat transfer fluid with reduced temperature to flow in the fourth direction (d4).

[0067] For example, when a magnetic field is applied to the magnetic heat material (310), the temperature of the magnetic heat material (310) may rise. While the temperature of the magnetic heat material (310) rises, a heat transfer fluid may receive heat from the magnetic heat material (310) by passing through the magnetic heat material (310). As the temperature of the magnetic heat material (310) rises, the magnetic heat material (310) may heat the heat transfer fluid flowing through the magnetic heat material (310). Accordingly, the temperature of the heat transfer fluid flowing through the magnetic heat material (310) may rise. The heat transfer fluid with the raised temperature may flow toward the first heat exchanger (100). The heat transfer fluid with the raised temperature may move along the third direction (d3). The above example may be an explanation of an example of the first mode (M1) of the magnetic cooling device (300).

[0068] For example, as the magnetic field is gradually removed after being applied to the magnetic heat material (310), the temperature of the magnetic heat material (310) can decrease. Since the magnetic heat material (310) has released heat, the temperature of the magnetic heat material (310) can drop further than the temperature of the magnetic heat material (310) before the magnetic field was applied to the magnetic heat material (310). That is, the temperature of the magnetic heat material (310) can have a temperature lower than the initial temperature of the magnetic heat material (310). While the temperature of the magnetic heat material (310) is decreasing, the heat transfer fluid can release heat to the magnetic heat material (310) by passing through the magnetic heat material (310). As the temperature of the magnetic heat material (310) decreases, the magnetic heat material (310) can cool the heat transfer fluid flowing through the magnetic heat material (310). Accordingly, the temperature of the heat transfer fluid can decrease. The heat transfer fluid with reduced temperature can flow toward the second heat exchanger (200). The heat transfer fluid with reduced temperature can move along the fourth direction (d4). The example described above may be an explanation of an example of the second mode (M2) of the magnetic cooling device (300).

[0069] The magnetic heat material (310) may include a plurality of magnetic heat blocks (3101, 3102, 3103, 3104, 3105, 3106). Each of the plurality of magnetic heat blocks (3101, 3102, 3103, 3104, 3105, 3106) may be made of a material capable of utilizing the magnetic heat effect. Each of the plurality of magnetic heat blocks (3101, 3102, 3103, 3104, 3105, 3106) may have a porous structure.

[0070] Multiple magnetic heat blocks (3101, 3102, 3103, 3104, 3105, 3106) may have different Curie temperatures. Multiple magnetic heat blocks (3101, 3102, 3103, 3104, 3105, 3106) having different Curie temperatures may be heated or cooled to different temperatures depending on the application or removal of a magnetic field. That is, by including multiple magnetic heat blocks (3101, 3102, 3103, 3104, 3105, 3106) having different Curie temperatures in the magnetic heat material (310), the temperature range of the magnetic heat material (310) can be widened. The temperature range of the heat transfer fluid flowing through the magnetic heat material (310) can also be widened. Ultimately, the magnetic heat effect of the magnetic heat material (310) can be increased.

[0071] A plurality of magnetic heat blocks (3101, 3102, 3103, 3104, 3105, 3106) may be spaced apart. This is because heat loss due to conduction may occur when magnetic heat blocks having different Curie temperatures come into contact with each other. For example, a plurality of magnetic heat blocks (3101, 3102, 3103, 3104, 3105, 3106) may be arranged along the direction of movement of the heat transfer fluid (e.g., a third direction (d3) or a fourth direction (d4)). For example, a plurality of magnetic heat blocks (3101, 3102, 3103, 3104, 3105, 3106) may be spaced apart by a predetermined gap (s). However, the present disclosure is not limited to the examples described above, and the gaps between the plurality of magnetic heat blocks (3101, 3102, 3103, 3104, 3105, 3106) may not be constant.

[0072] The magnetic cooling device (300) may include a case (340). The case (340) may be provided to accommodate a magnetic heat material (310). The case (340) may form an internal space therein, and the magnetic heat material (310) may be placed in the internal space of the case (340). A heat transfer fluid may flow in the internal space of the case (340).

[0073] The magnetic cooling device (300) may include a first inlet (341). The first inlet (341) may be formed on the first side of the case (340). For example, the first inlet (341) may be formed on the side of the case (340) facing the second heat exchanger (200). The first inlet (341) may be provided to allow heat transfer fluid to flow in from the second heat exchanger (200). The first inlet (341) may be in communication with the internal space of the case (340). The heat transfer fluid flowing in through the first inlet (341) may pass through the magnetic heat quantity material (310). For example, the first inlet (341) may be connected to a first flow path (410, see FIG. 1).

[0074] The magnetic cooling device (300) may include a first outlet (342). The first outlet (342) may be formed on a second side of the case (340). For example, the first outlet (342) may be formed on the side of the case (340) facing the first heat exchanger (100). The first outlet (342) may be provided to discharge a heat transfer fluid toward the first heat exchanger (100). The first outlet (342) may be in communication with the internal space of the case (340). The heat transfer fluid that has passed through the magnetic heat material (310) may be discharged through the first outlet (342). For example, the heat transfer fluid heated by the magnetic heat material (310) with increased temperature may be discharged through the first outlet (342). For example, the first outlet (342) can be connected to the second Euro (420, see FIG. 1).

[0075] The magnetic cooling device (300) may include a second inlet (343). The second inlet (343) may be formed on the second side of the case (340). For example, the second inlet (343) may be formed on the side of the case (340) facing the first heat exchanger (100). The second inlet (343) may be provided to allow heat transfer fluid to flow in from the first heat exchanger (100). The second inlet (343) may be in communication with the internal space of the case (340). The heat transfer fluid flowing in through the second inlet (343) may pass through the magnetic heat quantity material (310). For example, the second inlet (343) may be connected to a third flow path (430, see FIG. 1).

[0076] The magnetic cooling device (300) may include a second outlet (344). The second outlet (344) may be formed on the first side of the case (340). For example, the second outlet (344) may be formed on the side of the case (340) facing the second heat exchanger (200). The second outlet (344) may be provided to discharge a heat transfer fluid toward the second heat exchanger (200). The second outlet (344) may be in communication with the internal space of the case (340). The heat transfer fluid that has passed through the magnetic heat material (310) may be discharged through the second outlet (344). For example, the heat transfer fluid cooled by the magnetic heat material (310) with a lowered temperature may be discharged through the second outlet (344). For example, the second outlet (344) can be connected to the fourth Euro (440, see FIG. 1).

[0077] The magnetic cooling device (300) may include a magnetic heat module (301).

[0078] The magnetic heat module (301) includes a magnetic heat material (310) and can heat or cool a heat transfer fluid passing through the magnetic heat module (301). A magnetic field may or may not be applied to the magnetic heat module (301), and accordingly, the heat transfer fluid passing through the heat module (301) may be heated or cooled. The magnetic heat module (301) can operate in a first mode (M1) or a second mode (M2). The magnetic heat module (301) may be referred to as a magnetic cooling unit, a magnetic heating unit, a magnetic cooling module, a magnetic heating module, etc.

[0079] The magnetic heat module (301) may include a case (340) for accommodating a magnetic heat material (310), a first inlet (341), a first outlet (342), a second inlet (343), and a second outlet (344).

[0080] In FIGS. 2 and 3, the magnetic cooling device (300) is depicted as including one magnetic heat module (301), but the present disclosure is not limited thereto. The magnetic cooling device (300) may include a plurality of magnetic heat modules (301) (see FIGS. 11 to 13). A detailed description thereof will be provided later.

[0081] The magnetic cooling device (300) may include a magnet (320) (see FIG. 2). The magnet (320) may be configured to form a magnetic field. The magnet (320) may or may not apply a magnetic field to the magnetic heat module (301). The magnet (320) may or may not apply a magnetic field to the magnetic heat material (310). The magnetic heat material (310) may be configured to be exposed to or not exposed to the magnetic field formed by the magnet (320). When the magnetic heat material (310) receives a magnetic field from the magnet (320), the temperature of the magnetic heat material (310) may increase. When the magnetic heat material (310) does not receive a magnetic field from the magnet (320), the temperature of the magnetic heat material (310) may decrease.

[0082] The magnet (320) may be configured to be movable and / or rotatable with respect to the magnetic heat material (310) so as to approach the magnetic heat material (310) or move away from the magnetic heat material (310).

[0083] For example, the magnet (320) may be configured to be switchable from a first position (P1) to a second position (P2) or from a second position (P2) to a first position (P1). For example, the magnet (320) may be configured to be movable between the first position (P1) and the second position (P2). For example, the magnet (320) may be configured to be rotatable between the first position (P1) and the second position (P2).

[0084] For example, when the magnet (320) is in the first position (P1), the magnet (320) can apply a magnetic field to the magnetic heat material (310) (meaning 'magnetic field ON'). When the magnet (320) is in the first position (P1), the magnetic heat material (310) can be affected by the magnetic field. When the magnet (320) is in the first position (P1), the temperature of the magnetic heat material (310) can rise.

[0085] For example, when the magnet (320) is in the second position (P2), the magnet (320) may not apply a magnetic field to the magnetic heat material (310) (meaning 'magnetic field off'). When the magnet (320) is in the second position (P2), the magnetic heat material (310) may not be affected by the magnetic field. The second position (P2) may be a position away from the first position (P1). When the magnet (320) is in the second position (P2), the temperature of the magnetic heat material (310) may decrease.

[0086] The magnet (320) may be movable to raise or lower the temperature of the heat transfer fluid flowing through the magnetic heat material (310).

[0087] The magnet (320) may be arranged to approach the magnetic heat material (310) to raise the temperature of the heat transfer fluid flowing through the magnetic heat material (310). For example, the magnet (320) may move from a second position (P2) toward a first position (P1) to raise the temperature of the heat transfer fluid.

[0088] The magnet (320) may be arranged to gradually move away from the magnetic heat material (310) to lower the temperature of the heat transfer fluid flowing through the magnetic heat material (310). For example, the magnet (320) may move from a first position (P1) toward a second position (P2) to lower the temperature of the heat transfer fluid.

[0089] The magnet (320) may include a first pole (321) and a second pole (322) having a polarity opposite to that of the first pole (321). The magnetic field direction may be a direction from the first pole (321) toward the second pole (322) (e.g., a fifth direction (d5)) or a direction from the second pole (322) toward the first pole (321) (e.g., a sixth direction (d6)).

[0090] The magnetic cooling device (300) may include a current generating device (330). The current generating device (330) may be placed adjacent to the magnetic heat material (310). The current generating device (330) may generate an electric current. The current generating device (330) may move electric charges within a heat transfer fluid. The electric current may be generated through the heat transfer fluid.

[0091] The current generating device (330) can move the heat transfer fluid by generating an electric current. The heat transfer fluid may have electrical conductivity, and the current generating device (330) can cause a Lorentz force to act on the heat transfer fluid. Specifically, while the heat transfer fluid is under the influence of a magnetic field (i.e., when the magnetic flux density is not 0T), the current generating device (330) can generate an electric current, and the heat transfer fluid may move by the Lorentz force. Additionally, the direction of movement of the heat transfer fluid may be determined according to the direction of the electric current generated by the current generating device (330). The current generating device (330) can generate an electric current in a first direction (d1) in the magnetic heat material (310) or generate an electric current in a second direction (d2) in the magnetic heat material (310). For example, when the current generating device (330) generates a current flowing in a first direction (d1), the heat transfer fluid may move toward the first heat exchanger (100). For example, when the current generating device (330) generates a current flowing in a second direction (d2), the heat transfer fluid may move toward the second heat exchanger (200). A detailed explanation thereof will be provided later (see FIGS. 4 and 5).

[0092] For example, the current generating device (330) may include at least one electrode (331). The current generating device (330) may be configured to apply voltage to at least one electrode (331). As voltage is applied to at least one electrode (331), current may be generated.

[0093] At least one electrode (331) may be positioned to correspond to a gap formed between a plurality of magnetic heat blocks (3101, 3102, 3103, 3104, 3105, 3106). For example, at least one electrode (331) may be positioned to correspond to a gap(s). For example, at least one electrode (331) may be positioned inside a case (340).

[0094] The heat transfer fluid may experience more flow resistance in the magnetic heat block (3101, 3102, 3103, 3104, 3105, or 3106) than in the gap(s). The flow rate of the heat transfer fluid in the gap(s) may be greater than the flow rate of the heat transfer fluid in the magnetic heat block (3101, 3102, 3103, 3104, 3105, or 3106). That is, the heat transfer fluid subjected to electromagnetic forces (e.g., Lorentz force) may be more concentrated in the gap(s) than in the magnetic heat block (3101, 3102, 3103, 3104, 3105, or 3106). Thus, when at least one electrode (331) is positioned to correspond to the gap (s), the current can flow more smoothly compared to when at least one electrode (331) is positioned to correspond to the magnetic heat block (3101, 3102, 3103, 3104, 3105, or 3106), and the heat transfer fluid can receive a greater electromagnetic force. Additionally, the fluid flow of the heat transfer fluid is reduced as it passes through the magnetic heat block (3101, 3102, 3103, 3104, 3105, or 3106), but the fluid flow can be smooth as it passes through the gap (s). Ultimately, as at least one electrode (331) is positioned to correspond to the gap (s), the reduction in flow of the heat transfer fluid can be prevented and / or reduced, and the heat transfer performance of the heat transfer fluid can also be improved.

[0095] The current generating device (330) may include a first electrode (3311) and a second electrode (3312) spaced apart from the first electrode (3311). The second electrode (3312) may be spaced apart from the first electrode (3311) in a second direction (d2). The first electrode (3311) may be spaced apart from the second electrode (3312) in a first direction (d1). The second electrode (3312) may be spaced apart from the first electrode (3311) with a gap (s) in between. That is, a gap (s) may be placed between the first electrode (3311) and the second electrode (3312).

[0096] The first electrode (3311) may be provided in multiple numbers. The multiple first electrodes (3311) may be arranged approximately along the direction of movement of the heat transfer fluid (e.g., the third direction (d3) or the fourth direction (d4)). The multiple first electrodes (3311) may be spaced apart approximately along the direction of movement of the heat transfer fluid (e.g., the third direction (d3) or the fourth direction (d4)).

[0097] The second electrode (3312) may be provided in multiple numbers. The multiple second electrodes (3312) may be arranged approximately along the direction of movement of the heat transfer fluid (e.g., the third direction (d3) or the fourth direction (d4)). The multiple second electrodes (3312) may be spaced apart approximately along the direction of movement of the heat transfer fluid (e.g., the third direction (d3) or the fourth direction (d4)).

[0098] For example, each of the plurality of first electrodes (3311) can be arranged to correspond to each of the plurality of second electrodes (3312).

[0099] For example, when a first voltage is applied to the first electrode (3311) and a second voltage higher than the first voltage is applied to the second electrode (3312), a current may flow from the second electrode (3312) to the first electrode (3311). That is, a current may flow in the first direction (d1) (see FIG. 4). For example, when a first voltage is applied to the first electrode (3311) and a second voltage lower than the first voltage is applied to the second electrode (3312), a current may flow from the first electrode (3311) to the second electrode (3312). That is, a current may flow in the second direction (d2) (see FIG. 5).

[0100] The current generating device (330) may further include a third electrode (3313). The third electrode (3313) may be provided between the first inlet (341) and the second outlet (344). The third electrode (3313) may be positioned adjacent to one side of the case (340). The third electrode (3313) may be positioned between the fourth electrode (3314), which will be described later, and the fifth electrode (3315), which will be described later.

[0101] The current generating device (330) may include a fourth electrode (3314). The fourth electrode (3314) may be spaced apart from the third electrode (3313). The fourth electrode (3314) may be spaced apart from the third electrode (3313) with the first inlet (341) in between. For example, the fourth electrode (3314) may be spaced apart from the third electrode (3313) in a second direction (d2).

[0102] The current generating device (330) may include a fifth electrode (3315). The fifth electrode (3315) may be spaced apart from the third electrode (3313). The fifth electrode (3315) may be spaced apart from the third electrode (3313) with the second outlet (344) in between. For example, the fifth electrode (3315) may be spaced apart from the third electrode (3313) in a first direction (d1).

[0103] For example, when a third voltage is applied to the third electrode (3313) and a fourth voltage higher than the third voltage is applied to the fourth electrode (3314), a current may flow from the fourth electrode (3314) to the third electrode (3313). That is, a current may flow in the first direction (d1) (see FIG. 4). For example, when a third voltage is applied to the third electrode (3313) and a fifth voltage higher than the third voltage is applied to the fifth electrode (3315), a current may flow from the fifth electrode (3315) to the third electrode (3313). That is, a current may flow in the second direction (d2) (see FIG. 5).

[0104] The current generating device (330) may include a sixth electrode (3316). The sixth electrode (3316) may be provided between the second inlet (343) and the first outlet (342). The sixth electrode (3316) may be positioned adjacent to the second side of the case (340). The sixth electrode (3316) may be positioned between the seventh electrode (3317), which will be described later, and the eighth electrode (3318), which will be described later.

[0105] The current generating device (330) may include a seventh electrode (3317). The seventh electrode (3317) may be spaced apart from the sixth electrode (3316). The seventh electrode (3317) may be spaced apart from the sixth electrode (3316) with the first outlet (342) in between. For example, the seventh electrode (3317) may be spaced apart from the sixth electrode (3316) in a second direction (d2).

[0106] The current generating device (330) may include an eighth electrode (3318). The eighth electrode (3318) may be spaced apart from the sixth electrode (3316). The eighth electrode (3318) may be spaced apart from the sixth electrode (3316) with the second inlet (343) in between. For example, the eighth electrode (3318) may be spaced apart from the sixth electrode (3316) in a first direction (d1).

[0107] For example, when a sixth voltage is applied to the sixth electrode (3316) and a seventh voltage higher than the sixth voltage is applied to the seventh electrode (3317), a current may flow from the seventh electrode (3317) to the sixth electrode (3316). That is, a current may flow in the first direction (d1) (see FIG. 4). For example, when a sixth voltage is applied to the sixth electrode (3316) and an eighth voltage higher than the sixth voltage is applied to the eighth electrode (3318), a current may flow from the eighth electrode (3318) to the sixth electrode (3316). That is, a current may flow in the second direction (d2) (see FIG. 5).

[0108] The first electrode (3311), the second electrode (3312), the third electrode (3313), the fourth electrode (3314), the fifth electrode (3315), the sixth electrode (3316), the seventh electrode (3317), and the eighth electrode (3318) do not limit their configuration by their ordinal number.

[0109] FIG. 4 schematically illustrates a state in which a magnetic cooling device according to one embodiment operates in a first mode. FIG. 5 schematically illustrates a state in which a magnetic cooling device according to one embodiment operates in a second mode.

[0110] With reference to FIGS. 4 and 5, the first mode (M1) and second mode (M2) of the magnetic cooling device (300) will be described. For reference, FIGS. 4 and 5 illustrate an example where the magnetic field (B) is in a direction that goes into the ground.

[0111] The magnetic cooling device (300) may operate in a first mode (M1, see FIG. 4) or in a second mode (M2, see FIG. 5). The magnetic cooling device (300) may be configured to operate by sequentially switching between the first mode (M1) and the second mode (M2).

[0112] Referring to FIG. 4, when the magnetic cooling device (300) operates in the first mode (M1), the magnetic cooling device (300) can heat the heat transfer fluid and move the heated heat transfer fluid toward the first heat exchanger (100).

[0113] While the magnetic cooling device (300) is operating in the first mode (M1), the magnet (320) may move and / or rotate to raise the temperature of the heat transfer fluid flowing through the magnetic heat material (310). While the magnetic cooling device (300) is operating in the first mode (M1), the magnet (320) may approach the magnetic heat material (310). For example, while the magnetic cooling device (300) is operating in the first mode (M1), the magnet (320) may be in a state of approaching the magnetic heat material (310) or in a state of being fully approaching the magnetic heat material (310). For example, the magnet (320) may move and / or rotate to switch from the second position (P2) to the first position (P1). For example, the magnetic field may be switched from OFF to ON. As the magnet (320) approaches the magnetic heat material (310), the strength of the magnetic field applied to the magnetic heat material (310) can be increased. The magnetic flux density of the magnetic field applied to the magnetic heat material (310) can be increased. As a result, the temperature of the magnetic heat material (310) can rise. The temperature of the heat transfer fluid can rise as it passes through the magnetic heat material (310). That is, the heat transfer fluid can be heated.

[0114] While the magnetic cooling device (300) is operating in the first mode (M1), the current generating device (330) can generate current in the first direction (d1). The current generating device (330) can generate current in the first direction (d1) to cause the heat transfer fluid, whose temperature has been raised, to flow toward the first heat exchanger (100). The current flowing in the first direction (d1) can be collectively referred to as the first current (I1). The first direction (d1) can be orthogonal to the direction of the magnetic field (B) formed by the magnet (320). The first direction (d1) can be orthogonal to the direction of movement of the heat transfer fluid (e.g., the third direction (d3), the fourth direction (d4)).

[0115] For example, while the self-cooling device (300) is operating in the first mode (M1), the current generating device (330) can generate a current (i.e., the first current (I1)) flowing from the second electrode (3312) to the first electrode (3311). Thus, the heat transfer fluid can flow entirely toward the first heat exchanger (100).

[0116] For example, while the self-cooling device (300) is operating in the first mode (M1), the current generating device (330) can generate a current (i.e., the first current (I1)) flowing from the fourth electrode (3314) to the third electrode (3313). By doing so, the heat transfer fluid can flow more smoothly through the first inlet (341).

[0117] For example, while the self-cooling device (300) is operating in the first mode (M1), the current generating device (330) can generate a current (i.e., the first current (I1)) flowing from the seventh electrode (3317) to the sixth electrode (3316). By doing so, the heat transfer fluid can flow out more smoothly through the first outlet (342).

[0118] While the magnetic cooling device (300) is operating in the first mode (M1), the magnetic heat material (310) is affected by the magnetic field (B) by the magnet (320) (magnetic field strength increases), and the current generating device (330) can generate a first current (I1). As a result, a Lorentz force can act on the heat transfer fluid with increased temperature. The heat transfer fluid with increased temperature can flow toward the first heat exchanger (100). The heat transfer fluid with increased temperature can flow toward the first heat exchanger (100) by the first current (I1). The heat transfer fluid with increased temperature can flow in a third direction (d3) (see solid arrow (F) in FIG. 4). The third direction (d3) may include a direction toward the first heat exchanger (100). The heat transfer fluid with increased temperature can flow along the first internal path (351). The first internal flow path (351) may refer to a flow path extending from the first inlet (341) to the first outlet (342). The first internal flow path (351) may include a flow path formed by the first inlet (341), a flow path formed by the first outlet (342), and a flow path formed by the case (340).

[0119] Referring to FIG. 5, when the magnetic cooling device (300) operates in a second mode (M2), the magnetic cooling device (300) can cool the heat transfer fluid and move the cooled heat transfer fluid toward the second heat exchanger (200).

[0120] While the magnetic cooling device (300) is operating in the second mode (M2), the magnet (320) may move and / or rotate to lower the temperature of the heat transfer fluid flowing through the magnetic heat material (310). While the magnetic cooling device (300) is operating in the second mode (M2), the magnet (320) may gradually move away from the magnetic heat material (310). For example, while the magnetic cooling device (300) is operating in the second mode (M2), the magnet (320) may be in a state before it is completely moved away from the magnetic heat material (310). That is, the magnet (320) may be in a state before it is completely positioned at the second position (P2). For example, the magnet (320) may move and / or rotate to transition from the first position (P1) to the second position (P2). For example, the magnetic field may be switched from ON to OFF. As the magnet (320) approaches the magnetic heat material (310) and then gradually moves away from the magnetic heat material (310), the strength of the magnetic field applied to the magnetic heat material (310) may decrease. The magnetic flux density of the magnetic field applied to the magnetic heat material (310) may decrease. However, while the magnetic cooling device (300) is operating in the second mode (M2), the magnetic flux density of the magnetic field may not be 0T. That is, even while the magnetic cooling device (300) is operating in the second mode (M2), the magnetic heat material (310) may be affected by the magnetic field. As a result, the temperature of the magnetic heat material (310) may decrease. The temperature of the heat transfer fluid may decrease as it passes through the magnetic heat material (310). That is, the heat transfer fluid may be cooled.

[0121] While the magnetic cooling device (300) is operating in the second mode (M2), the current generating device (330) can generate current in the second direction (d2). The current generating device (330) can generate current in the second direction (d2) to cause the heat transfer fluid with reduced temperature to flow toward the second heat exchanger (200). The current flowing in the second direction (d2) can be collectively referred to as the second current (I2). For example, the second direction (d2) may be the opposite direction to the first direction (d1). The second direction (d2) may be orthogonal to the direction of the magnetic field (B) formed by the magnet (320). The second direction (d2) may be orthogonal to the direction of movement of the heat transfer fluid (e.g., the third direction (d3), the fourth direction (d4)).

[0122] For example, while the self-cooling device (300) is operating in a second mode (M2), the current generating device (330) can generate a current (i.e., a second current (I2)) flowing from the first electrode (3311) to the second electrode (3312). Thus, the heat transfer fluid can flow entirely toward the second heat exchanger (200).

[0123] For example, while the self-cooling device (300) is operating in the second mode (M2), the current generating device (330) can generate a current (i.e., a second current (I2)) flowing from the eighth electrode (3318) to the sixth electrode (3316). This allows the heat transfer fluid to flow more smoothly through the second inlet (343).

[0124] For example, while the self-cooling device (300) is operating in the second mode (M2), the current generating device (330) can generate a current (i.e., a second current (I2)) flowing from the fifth electrode (3315) to the third electrode (3313). This allows the heat transfer fluid to flow more smoothly through the second outlet (344).

[0125] While the magnetic cooling device (300) is operating in the second mode (M2), the magnetic heat material (310) is affected by the magnetic field (B) by the magnet (320) (magnetic field strength decreases), and the current generating device (330) can generate a second current (I2). As a result, a Lorentz force can act on the heat transfer fluid with reduced temperature. The heat transfer fluid with reduced temperature can flow toward the second heat exchanger (200). The heat transfer fluid with reduced temperature can flow toward the second heat exchanger (200) by the second current (I2). The heat transfer fluid with reduced temperature can flow in a fourth direction (d4) (see solid arrow (F) in FIG. 5). The fourth direction (d4) may include a direction toward the second heat exchanger (200). For example, the fourth direction (d4) may be the opposite direction of the third direction (d3). The heat transfer fluid with reduced temperature may flow along the second internal flow path (352). The second internal flow path (352) may refer to a flow path extending from the second inlet (343) to the second outlet (344). The second internal flow path (352) may include a flow path formed by the second inlet (343), a flow path formed by the second outlet (344), and a flow path formed by the case (340).

[0126] Generally, a cooling cycle device of the relevant technology includes a pump that pumps a heat transfer fluid to allow the fluid to flow to each component of the cooling cycle device. Furthermore, precise control of the pump is required to achieve efficient heat transfer fluid flow and heat transfer effects in the cooling cycle device. However, during pump control, friction and wear occur on the pump, which shortens its service life and may result in frequent breakdowns and noise. Since the cooling cycle device of the relevant technology must be equipped with a pump, the structure of the cooling cycle device may become complex and its size may increase. Additionally, issues such as pressure loss may arise due to the load placed on the pump, and the efficiency of the cooling cycle may decrease.

[0127] In contrast, the cooling cycle device (1) according to one embodiment of the present disclosure does not require a pump. The cooling cycle device (1) can effectively move a heat transfer fluid without a pump by utilizing an electromagnetic force (e.g., Lorentz force). Since the cooling cycle device (1) is not equipped with a pump, noise can be reduced. The cooling cycle device (1) can be made compact by having a simple structure. In addition, factors that reduce cooling cycle efficiency can be eliminated. Ultimately, user convenience can be increased with the cooling cycle device (1).

[0128] FIG. 6 is a graph showing an example of the operation of a magnetic cooling device according to one embodiment.

[0129] Referring to FIG. 6, while the magnetic cooling device (300) is operating in the first mode (M1), the magnetic flux density of the magnetic field applied to the magnetic heat material (310) can be increased as the magnet (320) approaches the magnetic heat material (310). As a result, the temperature of the magnetic heat material (310) rises, and the temperature of the heat transfer fluid passing through the magnetic heat material (310) can rise. Additionally, while the magnetic cooling device (300) is operating in the first mode (M1), the current generating device (330) can generate a first current (I1). As a result, the heat transfer fluid with the increased temperature can move toward the first heat exchanger (100) by the Lorentz force (see FIG. 4).

[0130] Referring to FIG. 6, while the magnetic cooling device (300) is operating in the second mode (M2), as the magnet (320) that approached the magnetic heat material (310) gradually moves away from the magnetic heat material (320), the magnetic flux density of the magnetic field applied to the magnetic heat material (310) can be lowered. As a result, the temperature of the magnetic heat material (310) can be lowered, and the temperature of the heat transfer fluid passing through the magnetic heat material (310) can be lowered. Additionally, while the magnetic cooling device (300) is operating in the second mode (M2), the current generating device (330) can generate a second current (I2). That is, before the magnet (320) is completely moved away from the magnetic heat material (310) (i.e., before the magnetic field applied to the magnetic heat material (310) is completely removed), while the magnetic heat material (310) is under the influence of the magnetic field from the magnet (320), the current generating device (330) can generate a second current (I2). Thus, the heat transfer fluid with a lowered temperature can move toward the second heat exchanger (200) by the Lorentz force (see FIG. 5).

[0131] The graph shown in FIG. 6 illustrates an example of the operation of the magnetic cooling device (300), and it goes without saying that the magnetic cooling device (300) may operate differently from as shown in FIG. 6.

[0132] FIG. 7 is a table showing an example of the operation of a magnetic cooling device according to one embodiment.

[0133] While the magnet (320) approaches the magnetic heat material (310), the magnetic field may be switched from OFF to ON. The magnetic field being OFF may include not applying a magnetic field to the magnetic heat material (310). The magnetic field being ON may include applying a magnetic field to the magnetic heat material (310). As the magnetic field is switched from OFF to ON, the temperature of the heat transfer fluid may rise. When the magnet (320) approaches the magnetic heat material (310), the current generating device (330) may operate to generate a first current (I1). The current generating device (330) may generate the first current (I1) to move the heat transfer fluid, whose temperature has risen, toward the first heat exchanger (100). For example, while the magnetic cooling device (300) is operating in the first mode (M1), the magnet (320) can move from the second position (P2) toward the first position (P1), and the current generating device (330) can generate the first current (I1).

[0134] While the magnet (320) is moving away from the magnetic heat material (310), the magnetic field may be switched from ON to OFF. As the magnetic field is switched from ON to OFF, the temperature of the heat transfer fluid may decrease. Before the magnet (320) is completely moved away from the magnetic heat material (310), the current generating device (330) may be operated to generate a second current (I2). The current generating device (330) may generate the second current (I2) to move the heat transfer fluid with the lowered temperature toward the second heat exchanger (200). For example, while the magnetic cooling device (300) is operating in the second mode (M2), the magnet (320) may move from the first position (P1) toward the second position (P2), and the current generating device (330) may generate the second current (I2).

[0135] FIG. 8 is a table showing an example of the operation of a magnetic cooling device according to one embodiment.

[0136] When the magnet (320) approaches the magnetic heat material (310), the current generating device (330) can generate a first current (I1). The current generating device (330) can generate a current flowing from the second electrode (3312) to the first electrode (3311). The current generating device (330) can generate a current flowing from the fourth electrode (3314) to the third electrode (3313). The current generating device (330) can generate a current flowing from the seventh electrode (3317) to the sixth electrode (3316).

[0137] While the magnet (320) approaches the magnetic heat material (310) and moves away from the magnetic heat material (310), the current generating device (330) can generate a second current (I2). The current generating device (330) can generate a current flowing from the first electrode (3311) to the second electrode (3312). The current generating device (330) can generate a current flowing from the fifth electrode (3315) to the third electrode (3313). The current generating device (330) can generate a current flowing from the eighth electrode (3318) to the sixth electrode (3316).

[0138] FIG. 9 is a control block diagram of a cooling cycle device according to one embodiment.

[0139] Referring to FIG. 9, the cooling cycle device (or magnetic cooling device) may include a control unit (360), a driving unit (370), a magnet (320), a power supply unit (380), and a current generating device (330).

[0140] A cooling cycle device according to one embodiment of the present disclosure may not include some of the configurations shown in FIG. 9. A cooling cycle device according to one embodiment of the present disclosure may include additional configurations other than those shown in FIG. 9.

[0141] The control unit (360) can control the magnetic cooling device (300). The control unit (360) can control the operation of the magnetic cooling device (300). The control unit (360) can be electrically connected to various components of the magnetic cooling device (300).

[0142] The control unit (360) may include hardware such as a CPU, a Micom, or memory, and software such as a control program. For example, the control unit (360) may include at least one memory (362) that stores data in the form of an algorithm or program for controlling the operation of the components of the cooling cycle device. For example, the control unit (360) may include at least one processor (361) that performs operations using data stored in at least one memory (362). The memory (362) and at least one processor (361) may each be implemented as separate chips. At least one processor (361) may include one or more processor chips or one or more processing cores. The memory (362) may include one or more memory chips or one or more memory blocks. Additionally, the memory (362) and at least one processor (361) may be implemented as a single chip.

[0143] The driving unit (370) can generate power. The driving unit (370) may be configured to move and / or rotate the magnet (320) relative to the magnetic heat material (310). For example, the driving unit (370) may generate a driving force to move the magnet (320) from a first position (P1) to a second position (P2) or from a second position (P2) to a first position (P1). For example, the driving unit (370) may move the magnet (320). For example, the driving unit (370) may rotate the magnet (320). The magnet (320) may be moved and / or rotated by the driving unit (370), and as the magnet (320) moves and / or rotates, the strength of the magnetic field applied to the magnetic heat material (310) may change.

[0144] The drive unit (370) may be referred to as a drive device (370), a drive module (370), a drive assembly (370), etc. For example, the drive unit (370) may include at least one motor.

[0145] The control unit (360) can control the driving unit (370). For example, the control unit (360) can control the driving unit (370) so that the magnet (320) approaches the magnetic heat material (310). For example, the control unit (360) can control the driving unit (370) to move and / or rotate the magnet (320) for the operation of the first mode (M1) of the magnetic cooling device (300). For example, the control unit (360) can control the driving unit (370) so that the magnet (320) moves away from the magnetic heat material (310). For example, the control unit (360) can control the driving unit (370) to move and / or rotate the magnet (320) for the operation of the second mode (M2) of the magnetic cooling device (300).

[0146] A power supply unit (380) may be provided to supply power to a current generating device (330). Although the drawing depicts the current generating device (330) and the power supply unit (380) as separate components, the present disclosure is not limited thereto, and the power supply unit (380) may be provided as a component of the current generating device (330).

[0147] The control unit (360) can control the power supply unit (380). For example, the control unit (360) can control the power supply unit (380) so that the current generating device (330) generates a first current (I1). For example, the control unit (360) can control the power supply unit (380) so that the current generating device (330) generates a second current (I2). However, the control unit (360) may also directly control the current generating device (330). The control unit (360) can control the current generating device (330) to generate the first current (I1). For example, the control unit (360) can control the current generating device (330) to generate the first current (I1) for the operation of the first mode (M1) of the magnetic cooling device (300). The control unit (360) can control the current generating device (330) to generate a second current (I2). For example, the control unit (360) can control the current generating device (330) to generate a second current (I2) for the operation of the second mode (M2) of the self-cooling device (300).

[0148] FIG. 10 is a schematic diagram of a magnetic cooling device according to one embodiment.

[0149] Referring to FIG. 10, an example of a magnetic cooling device is described. Compared to the magnetic cooling devices shown in FIG. 3 through 5, the magnetic cooling device shown in FIG. 10 may be substantially identical except for the arrangement of the current generating device (330). The same reference numerals are assigned to configurations that are substantially identical to the configurations described above, and redundant descriptions may be omitted.

[0150] Referring to FIG. 10, a current generating device (330) may be provided on the outside of a case (340). At least one electrode (331) of the current generating device (330) may be disposed outside the case (340). At least one electrode (331) may be disposed to correspond to a gap formed between a plurality of magnetic heat blocks (3101, 3102, 3103, 3104, 3105, 3106). For example, at least one electrode (331) may be disposed to correspond to a gap(s).

[0151] According to one embodiment of the present disclosure, if the current generating device (330) can generate a current such that a Lorentz force acts on the heat transfer fluid, the position or shape of the current generating device (330) is not limited.

[0152] FIG. 11 is a schematic diagram of a cooling cycle device according to one embodiment. Components substantially identical to the above-described configuration are given the same reference numerals, and redundant descriptions may be omitted.

[0153] Referring to FIG. 11, a cooling cycle device (1) according to one embodiment of the present disclosure may include a first heat exchanger (100), a second heat exchanger (200), and a magnetic cooling device (300).

[0154] The magnetic cooling device (300) may include a plurality of magnetic heat modules (301). For example, the magnetic cooling device (300) may include a first magnetic heat module (301a) and a second magnetic heat module (301b). The first magnetic heat module (301a) and the second magnetic heat module (301b) may have substantially the same configuration and / or structure. The first magnetic heat module (301a) and the second magnetic heat module (301b) may be spaced apart.

[0155] Each of the plurality of magnetic heat modules (301) may include a magnetic heat material (310). Each of the plurality of magnetic heat modules (301) may heat or cool a heat transfer fluid passing through the magnetic heat material (310) by utilizing the magnetic heat effect of the magnetic heat material (310). For example, the first magnetic heat module (301a) may include a first magnetic heat material (310a), and the second magnetic heat module (301b) may include a second magnetic heat material (310b). The second magnetic heat material (310b) may be spaced apart from the first magnetic heat material (310b).

[0156] Each of the plurality of magnetic heat modules (301) may include a first inlet (341), a first outlet (342), a second inlet (343), and a second outlet (344). For example, the first magnetic heat module (301a) may include a first inlet (341a), a first outlet (342a), a second inlet (343a), and a second outlet (344a). For example, the second magnetic heat module (301b) may include a first inlet (341b), a first outlet (342b), a second inlet (343b), and a second outlet (344b).

[0157] According to one embodiment of the present disclosure, the first magnetic heat module (301a) and the second magnetic heat module (301b) may be configured to operate differently.

[0158] While the first magnetic heat module (301a) is operating in the first mode (M1) (see FIG. 4), the second magnetic heat module (301b) can operate in the second mode (M2) (see FIG. 5). While the second magnetic heat module (301b) is operating in the first mode (M1) (see FIG. 4), the first magnetic heat module (301a) can operate in the second mode (M2) (see FIG. 5).

[0159] That is, while the first magnetic heat module (301a) moves the heated heat transfer fluid toward the first heat exchanger (100) (see FIG. 4), the second magnetic heat module (301b) can move the cooled heat transfer fluid toward the second heat exchanger (200) (see FIG. 5). Conversely, while the second magnetic heat module (301b) moves the heated heat transfer fluid toward the first heat exchanger (100) (see FIG. 4), the first magnetic heat module (301a) can move the cooled heat transfer fluid toward the second heat exchanger (200) (see FIG. 5). The magnetic cooling device (300) can heat the heat transfer fluid and move the heated heat transfer fluid toward the first heat exchanger (100), while simultaneously cooling the heat transfer fluid and moving the cooled heat transfer fluid toward the second heat exchanger (200). Thus, the heat transfer efficiency of the self-cooling device (300) can be increased.

[0160] The magnet (320) may move away from the second magnetic heat module (301b) as it approaches the first magnetic heat module (301a). The magnet (320) may move away from the first magnetic heat module (301a) as it approaches the second magnetic heat module (301b). For example, if the magnet (320) is located at a first position (P1) with respect to the first magnetic heat module (301a), it can be expressed that the magnet (320) is located at a second position (P2) with respect to the second magnetic heat module (301b). For example, if the magnet (320) is located at a first position (P1) with respect to the second magnetic heat module (301b), it can be expressed that the magnet (320) is located at a second position (P2) with respect to the first magnetic heat module (301a).

[0161] The heat transfer fluid may flow in opposite directions in the first magnetic heat module (301a) and the second magnetic heat module (301b). The heat transfer fluid flowing through the first magnetic heat material (310a) and the heat transfer fluid flowing through the second magnetic heat material (310b) may move in opposite directions to each other. For example, while the first magnetic heat module (301a) moves the heat transfer fluid in a third direction (d3, see FIG. 4), the second magnetic heat module (301b) may move the heat transfer fluid in a fourth direction (d4, see FIG. 5). For example, while the second magnetic heat module (301b) moves the heat transfer fluid in a third direction (d3, see FIG. 4), the first magnetic heat module (301a) may move the heat transfer fluid in a fourth direction (d4, see FIG. 5).

[0162] For the flow of the heat transfer fluid described above, the current generating device (330) can generate a current in either a first direction (d1) or a second direction (d2) in the first magnetic heat material (310a), and generate a current in the other direction among the first direction (d1) and the second direction (d2) in the second magnetic heat material (310b). That is, the current generating device (330) can generate a first current (I1) in the first magnetic heat material (310a) (see FIG. 4) and generate a second current (I2) in the second magnetic heat material (310b) (see FIG. 5). Conversely, the current generating device (330) can generate a first current (I1) in the second magnetic thermal material (310b) (see FIG. 4) and generate a second current (I2) in the first magnetic thermal material (310a) (see FIG. 5).

[0163] However, unlike the above, according to one embodiment of the present disclosure, the first magnetic heat module (301a) and the second magnetic heat module (301b) may be configured to operate identically. For example, the first magnetic heat module (301a) and the second magnetic heat module (301b) may be configured to operate simultaneously in a first mode (M1) or a second mode (M2).

[0164] The first Euro (410) may include a first connection line (411) and a second connection line (412). The first connection line (411) may connect the first inlet (341a) of the first magnetic heat module (301a) to the second heat exchanger (200). The second connection line (412) may connect the first inlet (341b) of the second magnetic heat module (301b) to the second heat exchanger (200).

[0165] The second Euro (420) may include a third connection line (421) and a fourth connection line (422). The third connection line (421) may connect the first outlet (342a) of the first magnetic heat module (301a) to the first heat exchanger (100). The fourth connection line (422) may connect the first outlet (342b) of the second magnetic heat module (301b) to the first heat exchanger (100).

[0166] The third Euro (430) may include a fifth connection line (431) and a sixth connection line (432). The fifth connection line (431) may connect the second inlet (343a) of the first magnetic heat module (301a) to the first heat exchanger (100). The sixth connection line (432) may connect the second inlet (343b) of the second magnetic heat module (301b) to the first heat exchanger (100).

[0167] The fourth Euro (440) may include a seventh connection line (441) and an eighth connection line (442). The seventh connection line (441) may connect the second outlet (344a) of the first magnetic heat module (301a) to the second heat exchanger (200). The eighth connection line (442) may connect the second outlet (344b) of the second magnetic heat module (301b) to the second heat exchanger (200).

[0168] FIG. 12 is a schematic diagram of a magnetic cooling device according to one embodiment. FIG. 13 is a schematic diagram of a cooling cycle device including the magnetic cooling device shown in FIG. 12. Components substantially identical to the above-described components are given the same reference numerals, and redundant descriptions may be omitted.

[0169] Referring to FIGS. 12 and 13, the magnetic cooling device (300) may include a plurality of magnetic heat modules (301). For example, the magnetic cooling device (300) may include a third magnetic heat module (301c), a fourth magnetic heat module (301d), a fifth magnetic heat module (301e), a sixth magnetic heat module (301f), a seventh magnetic heat module (301g), an eighth magnetic heat module (301h), a ninth magnetic heat module (301i), and a tenth magnetic heat module (301j). Each of the plurality of magnetic heat modules (301) may have substantially the same configuration and / or structure. Although FIGS. 12 and 13 illustrate the magnetic cooling device (300) as including eight magnetic heat modules (301), the present disclosure is not limited thereto. There is no limitation on the number of magnetic heat modules (301).

[0170] Each of the plurality of magnetic heat modules (301) may include a magnetic heat material (310). Each of the plurality of magnetic heat modules (301) may heat or cool a heat transfer fluid passing through the magnetic heat material (310) by utilizing the magnetic heat effect of the magnetic heat material (310). For example, the third magnetic heat module (301c) may include a third magnetic heat material (310c). For example, the fourth magnetic heat module (301d) may include a fourth magnetic heat material (310d). For example, the fifth magnetic heat module (301e) may include a fifth magnetic heat material (310e). For example, the sixth magnetic heat module (301f) may include a sixth magnetic heat material (310f). For example, the seventh magnetic heat module (301g) may include a seventh magnetic heat material (310g). For example, the eighth magnetic heat module (301h) may include the eighth magnetic heat material (310h). For example, the ninth magnetic heat module (301i) may include the ninth magnetic heat material (310i). For example, the tenth magnetic heat module (301j) may include the tenth magnetic heat material (310j).

[0171] Each of the plurality of magnetic heat modules (301) may include a first internal flow path (351) and a second internal flow path (352). A heated heat transfer fluid may flow along the first internal flow path (351). A cooled heat transfer fluid may flow along the second internal flow path (352).

[0172] A plurality of magnetic heat materials (310) may be arranged in a circumferential direction with respect to a central axis (C). A plurality of magnetic heat materials (310) may be arranged adjacent to each other. A plurality of magnetic heat materials (310) may be arranged to form a roughly ring shape.

[0173] The magnet (320) may be arranged to rotate with respect to a plurality of magnetic heat modules (301). The magnet (320) may be arranged to rotate with respect to a plurality of magnetic heat materials (310). The magnet (320) may be arranged to rotate along the direction in which the plurality of magnetic heat materials (310) are arranged. The magnet (320) may be configured to rotate along the circumference of the plurality of magnetic heat materials (310). The magnet (320) may be rotatable with respect to the plurality of magnetic heat materials (310) around a central axis (C). The magnet (320) may be rotatable along the circumferential direction. A driving unit (370, see FIG. 9) may provide power to the magnet (320) to cause the magnet (320) to rotate.

[0174] The current generating device (330) may include a plurality of electrodes (331). One electrode (331) may be placed between two adjacent magnetic heat modules (301). One electrode (331) may be placed between adjacent magnetic heat materials (310). The plurality of magnetic heat materials (310) and the plurality of electrodes (331) may be arranged to be alternately placed. Each of the plurality of electrodes (331) may be placed in a spaced-apart space between the plurality of magnetic heat modules (301). Thus, the magnetic cooling device (300) may have a compact structure.

[0175] Some of the plurality of magnetic heat modules (301) may operate in a first mode (M1) (see FIG. 4), and the remainder of the plurality of magnetic heat modules (301) may operate in a second mode (M2) (see FIG. 5). The heat transfer fluid with increased temperature may move toward the first heat exchanger (100, see FIG. 1) through some of the plurality of magnetic heat modules (301). The heat transfer fluid with decreased temperature may move toward the second heat exchanger (200, see FIG. 1) through the remainder of the plurality of magnetic heat modules (301).

[0176] The magnet (320) may apply a magnetic field to a portion of the plurality of magnetic heat modules (301) and not apply a magnetic field to the remainder of the plurality of magnetic heat modules (301). A portion of the plurality of magnetic heat modules (301) may be affected by the magnetic field from the magnet (320), while the remainder of the plurality of magnetic heat modules (301) may not be affected by the magnetic field from the magnet (320). As the magnet (320) rotates, the magnetic heat modules (301) affected by the magnetic field may change.

[0177] The current generating device (330) can generate a first current (I1) in a portion of a plurality of magnetic heat modules (301) (see FIG. 4) and generate a second current (I2) in the remainder of a plurality of magnetic heat modules (301) (see FIG. 5). As the magnetic heat modules (301) affected by the magnetic field change, the direction of the current provided by the current generating device (330) to each magnetic heat module (301) may change.

[0178] For example, referring to FIG. 12, the magnet (320) can be rotated to apply a magnetic field to the third magnetic heat module (301c) and the seventh magnetic heat module (301g). As the magnet (320) rotates, it can be arranged to approach the third magnetic heat material (310c) and the seventh magnetic heat material (310g). At this time, the current generating device (330) can cause the first current (I1) to flow through the third magnetic heat material (310c) and the seventh magnetic heat material (310g). Accordingly, the heat transfer fluid flowing through the third magnetic heat material (310c) and the seventh magnetic heat material (310g) can be heated, and the heated heat transfer fluid can move toward the first heat exchanger (100). The third magnetic heat material (310c) and the seventh magnetic heat material (310g) can operate in the first mode (M1) (see FIG. 4). The magnet (320) can be arranged to move away from the tenth magnetic heat material (310j) and the sixth magnetic heat material (310f) as it rotates. The current generating device (330) can cause the second current (I2) to flow before the magnet (320) moves completely away from the tenth magnetic heat material (310j) and the sixth magnetic heat material (310f) (i.e., before the magnetic flux density becomes 0T). Accordingly, the heat transfer fluid flowing through the tenth magnetic heat material (310j) and the sixth magnetic heat material (310f) can be cooled, and the cooled heat transfer fluid can move toward the second heat exchanger (200). The 10th magnetic thermal material (310j) and the 6th magnetic thermal material (310f) can operate in a second mode (M2) (see FIG. 5).

[0179] Meanwhile, although the magnet (320) is shown rotating clockwise in FIG. 12, the present disclosure is not limited thereto. The magnet (320) may also rotate counterclockwise.

[0180] FIG. 14 is a perspective view of a home appliance including a cooling cycle device according to one embodiment. FIG. 14 illustrates a refrigerator (2a) as an example of a home appliance (2).

[0181] A refrigerator (2a) according to one embodiment of the present disclosure may include a cooling cycle device (1, see FIG. 1).

[0182] The refrigerator (2a) may include a main body (10), a storage room (20) provided inside the main body (10), a door (30) for opening and closing the storage room (20), and a cooling system for supplying cold air to the storage room (20).

[0183] The main body (10) may include an inner part (11) forming a storage room (20) and an outer part (12) forming the outer part of the refrigerator (2a).

[0184] The outer surface (12) can be formed to have the shape of a box with an open front. The outer surface (12) can form the upper surface, lower surface, left and right sides, rear surface, etc. of the refrigerator (2a).

[0185] The inner box (11) can be open at the front. The inner box (11) may have a storage room (20) provided inside and may be provided on the inner side of the outer box (12). The inner wall of the inner box (11) may form the inner wall of the storage room (20).

[0186] The main body (10) may include a top table (13) provided on the upper part of the main body (10). Specifically, the top table (13) may be coupled to the upper part of the outer body (12). The top table (13) may be coupled to the upper surface of the outer body (12). The top table (13) may be fixed to the outer body (12).

[0187] The top table (13) can cover various electrical components. A receiving space for accommodating various electrical components can be formed on the inside of the top table (13).

[0188] Between the outer surface (12) and the inner surface (11) of the main body (10), an insulating material may be provided so that the outer surface (12) and the inner surface (11) can be insulated from each other.

[0189] A storage room (20) may be formed inside the main body (10). For example, the storage room (20) may include a refrigerator room maintained at approximately 0 to 5 degrees Celsius for refrigerated storage of food. For example, the storage room (20) may include a freezer room maintained at approximately minus 30 to 0 degrees Celsius for frozen storage of food.

[0190] For example, the storage room (20) may be divided into multiple areas by a partition (15). Specifically, the storage room (20) may be divided into an upper first storage room (21) and lower storage rooms (22, 23) by a first partition (17) extending in a horizontal direction. Additionally, the lower storage rooms (22, 23) of the storage room (20) may be divided into a left second storage room (22) and a right third storage room (23) by a second partition (19) extending in a vertical direction. In this case, for example, the first storage room (21) may be used as a refrigerator, and both the second storage room (22) and the third storage room (23) may be used as freezers, or one of them may be used as a freezer and the other as a refrigerator.

[0191] The method of dividing the storage room (20) as described above and the use of each of the divided storage rooms (21, 22, 23) are merely examples and are not limited thereto.

[0192] Inside the storage room (20), a shelf (24) on which food can be placed and a storage container (26) for storing food may be provided.

[0193] The refrigerator (2a) may include a cooling system configured to generate cold air using a cooling cycle and supply the generated cold air to a storage room (20). The cooling system may include a cooling cycle device (1, see FIG. 1).

[0194] For example, the first heat exchanger (100) may be placed outside the main body (10) of the refrigerator (2a). For example, the first heat exchanger (100) may be placed outside the outer side of the outer side (11). For example, the second heat exchanger (200) and the magnetic cooling device (300) may be placed inside the main body (10) of the refrigerator (2a). For example, the second heat exchanger (200) may be placed in the storage room (20). For example, the second heat exchanger (200) may be placed inside the inner side of the inner side (12). For example, the magnetic cooling device (300) may be placed in the machine room of the refrigerator (2a).

[0195] The door (30) may be provided to open and close the storage room (20). The door (30) may be provided to open and close an opening formed on one side of the main body (10). The door (30) may be provided to be rotatable with respect to the main body (10).

[0196] A door gasket (37) may be provided on the inner surface (back surface) of the door (30) to seal the gap between the door (30) and the main body (10) to prevent cold air from leaking from the storage room (20). The door gasket (37) may be provided along the perimeter of the inner surface of the door (30). The door gasket (37) may be configured to include an elastic material such as rubber.

[0197] A door basket (36) for storing food can be provided on the inner surface (back) of the door (30).

[0198] The refrigerator (2a) may include a plurality of doors (30A, 30B, 30C, 30D) that open and close each partitioned storage compartment (21, 22, 23).

[0199] In detail, the first storage room (21) can be opened and closed by a pair of upper doors (30A, 30B). The refrigerator (2a) may include a first door (30A) that opens and closes a part of the first storage room (21) and a second door (30B) that opens and closes another part of the first storage room (21). The first door (30A) and the second door (30B) may each be provided to be rotatable independently of each other with respect to the main body (10).

[0200] The first door (30A) and the second door (30B) can be arranged side by side. Specifically, the first door (30A) and the second door (30B) can be arranged side by side in a horizontal direction (Y direction). For example, the first door (30A) can be provided to open and close the left side of the first storage room (21), and the second door (30B) can be provided to open and close the right side of the first storage room (22).

[0201] The refrigerator (2a) may be provided with a rotating bar (50) which is rotatably provided on one of the pair of upper doors (30A, 30B) (e.g., the first door (30A)) and is provided to cover the gap between the pair of upper doors (30A, 30B) when the pair of upper doors (30A, 30B) close the first storage room (21).

[0202] The second storage compartment (22) can be opened and closed by the left lower door (30C). The refrigerator (2a) may include a third door (30C) provided to open and close the second storage compartment (22). The third door (30C) may be rotatably provided with respect to the main body (10). For example, the first door (30A) and the third door (30C) may be arranged side by side in a vertical direction (Z) relative to each other.

[0203] The third storage compartment (23) can be opened and closed by the right lower door (30D). The refrigerator (2a) may include a fourth door (30D) provided to open and close the third storage compartment (23). The fourth door (30D) may be rotatably provided with respect to the main body (10). For example, the second door (30B) and the fourth door (30D) may be arranged side by side in a vertical direction (Z). Additionally, the third door (30C) and the fourth door (30D) may be arranged side by side in a horizontal direction (Y).

[0204] The refrigerator (2a) may include a hinge bracket (40) connecting the main body (10) and the door (30). The hinge bracket (40) may be provided so that the door (30) can rotate relative to the main body (10).

[0205] The hinge bracket (40) can be fixed to the main body (10). In detail, the hinge bracket (40) can be connected to the outer body (12).

[0206] The hinge bracket (40) can rotatably support the door (30). The door (30) can be rotatably coupled to the main body (10) by the hinge bracket (40). The axis of rotation of the door (30) can pass through the hinge bracket (40).

[0207] In detail, the refrigerator (2a) may include a plurality of hinge brackets (41, 42, 43) arranged to support each of the plurality of doors (30A, 30B, 30C, 30D).

[0208] The refrigerator (2a) is not limited to the example shown in FIG. 14, and the cooling cycle device (1) according to one embodiment can be applied to various types of refrigerators, such as side-by-side type, French door type, BMF (Bottom Mounted Freezer) type, TMF (Top Mounted Freezer) type, or 1-door type.

[0209] FIG. 15 is a perspective view of a home appliance including a cooling cycle device according to one embodiment. FIG. 15 shows an indoor unit (2b) of an air conditioner as an example of a home appliance (2). FIG. 16 is a side cross-sectional view of a home appliance including a cooling cycle device according to one embodiment. FIG. 16 is a side cross-sectional view of the indoor unit (2b) of the air conditioner shown in FIG. 15.

[0210] An air conditioner according to one embodiment of the present disclosure may include a cooling cycle device (1, see FIG. 1). The air conditioner may include an indoor unit (2b) that absorbs heat and supplies cold air to a cooling space to be cooled, and an outdoor unit that releases heat to an external space. For example, the cooling space may be an indoor space where the indoor unit (2b) of the air conditioner is installed.

[0211] For example, the first heat exchanger (100) and the self-cooling device (300) of the cooling cycle device (1) may be placed in an outdoor unit, and the second heat exchanger (200) may be placed in an indoor unit (2b). Hereinafter, for convenience of explanation, the second heat exchanger (200) may be referred to as the heat exchanger (200).

[0212] The indoor unit (2b) of the air conditioner can be mounted on the ceiling (3). The indoor unit (2b) of the air conditioner can be installed on the ceiling (3). At least a portion of the indoor unit (2b) of the air conditioner can be suspended or embedded in the ceiling (3).

[0213] The indoor unit (2b) of the air conditioner may include a housing (10b) having an intake port (20b) and an exhaust port (21b), a heat exchanger (200) provided inside the housing (10b), and a blower fan (40b) for circulating air.

[0214] The housing (10b) may have a roughly circular shape. For example, the housing (10b) may include an upper housing (11b), an intermediate housing (12b) coupled below the upper housing (11b), and a lower housing (13b) coupled below the intermediate housing (12b). At least a portion of the upper housing (11b) and the intermediate housing (12b) may be embedded inside the ceiling (3).

[0215] An intake port (20b) for drawing in air may be formed in the central part of the lower housing (13b). An exhaust port (21b) for discharging air may be formed radially outward from the intake port (20b). The exhaust port (21b) may have a roughly circular shape.

[0216] With this structure, the indoor unit (2b) of the air conditioner can draw in air from the lower side, cool and heat it, and then discharge it back to the lower side.

[0217] A grille (15b) may be attached to the lower part of the lower housing (13b) to filter dust from the air sucked in through the intake port (20b).

[0218] The heat exchanger (200) may be configured to exchange heat with air drawn in through the intake port (20b). For example, the air drawn in through the intake port (20b) may be cooled as it passes through the heat exchanger (200). The heat exchanger (200) may be the second heat exchanger (200) of the cooling cycle device (1).

[0219] The heat exchanger (200) can be placed in the drain tray (16b). Condensate generated from the heat exchanger (200) can be collected in the drain tray (16b).

[0220] A blower fan (40b) may be provided on the radially inner side of the heat exchanger (200). The blower fan (40b) may generate blowing force. The blower fan (40b) may force air flow. For example, the blower fan (40b) may be a centrifugal fan that sucks in air in the axial direction and discharges it in the radial direction. A blower motor (41b) for driving the blower fan (40b) may be provided in the indoor unit (2b) of the air conditioner.

[0221] The indoor unit (2b) of the air conditioner may include an airflow control device (50b) that controls the discharge airflow.

[0222] The airflow control device (50b) can control the direction of the discharge airflow by changing the pressure by sucking in air around the discharge port (21b). Additionally, the airflow control device (50b) can control the amount of air sucked in around the discharge port (21b). For example, the airflow control device (50b) can control the direction of the discharge airflow by controlling the amount of air sucked in around the discharge port (21b). For example, the airflow control device (50b) can control the angle of the discharge airflow.

[0223] The airflow control device (50b) can draw in air from one side along the direction of the discharge airflow when drawing in air around the discharge port (21b). At this time, the angle of the discharge airflow can be adjusted according to the amount of air drawn in.

[0224] The airflow control device (50b) can discharge the inhaled air to one side along the direction of the discharge airflow. In particular, the airflow control device (50b) can discharge air in the opposite direction to the direction of inhalation. By doing so, the angle of the discharge airflow can be increased, and airflow control can be performed more smoothly.

[0225] The airflow control device (50b) can draw in air from the radially outer side of the discharge port (21b) (or from the upper side of the discharge airflow). In this way, since the airflow control device (50b) draws in air from the radially outer side of the discharge port (21b), the discharge airflow can spread widely from the radially center of the discharge port (21b) to the radially outer side.

[0226] The airflow control device (50b) may include an airflow control fan (60b) arranged to generate a suction force for sucking air around the discharge port (21b), an airflow control motor (61) arranged to drive the airflow control fan (60b), and a guide path (70b) arranged to guide the air sucked in by the airflow control fan (60b).

[0227] In addition, in this embodiment, a centrifugal fan may be used as the airflow control fan (60b), but it is not limited thereto, and various fans such as an axial fan, a cross-flow fan, and a diagonal fan may be used depending on the design specifications.

[0228] The guide channel (70b) can connect an inlet (71b) provided to draw in air around the discharge port (21b) and an outlet (72b) provided to discharge the drawn-in air. If the channel connecting the intake port (20b) and the discharge port (21b) is called the main channel, the guide channel (70b) can be said to be formed by branching off from the main channel.

[0229] The inlet (71b) may be composed of a plurality of slits having an arc shape. The plurality of slits may be arranged so as to be spaced apart from each other at a predetermined interval along the circumferential direction.

[0230] The outlet (72b) can be located around the discharge port (21) on the opposite side of the inlet (71b).

[0231] The guide channel (70b) can be formed circumferentially on the outer side of the housing (10b). Air sucked in through the inlet (71b) can pass through the guide channel (70b) and be discharged through the outlet (72b).

[0232] With this configuration, the indoor unit of the air conditioner according to one embodiment can control the discharge airflow without a blade structure. Accordingly, since there is no obstruction caused by blades, the discharge volume can be increased and flow noise can be reduced.

[0233] According to one embodiment, the discharge port of the indoor unit of the air conditioner can be provided in a circular shape, and the housing and heat exchanger can also be provided in a circular shape. Therefore, not only can the aesthetic appeal be enhanced with a differentiated design, but considering that the shape of a blower fan is generally circular, the airflow can be naturally formed and pressure loss reduced, so that the cooling or heating performance of the air conditioner can be improved.

[0234] Although a ceiling-mounted indoor unit (2b) is illustrated in FIGS. 15 and 16, the present disclosure is not limited to the example illustrated in FIGS. 15 and 16, and the cooling cycle device (1) according to one embodiment of the present disclosure can be applied to other types, such as a standing indoor unit (2b) and a wall-mounted indoor unit (2b). Although an indoor unit (2b) without a blade structure is illustrated in FIGS. 15 and 16, the present disclosure is not limited to the example illustrated in FIGS. 15 and 16, and the indoor unit (2b) of the air conditioner can also be applied to an indoor unit having a blade structure. In addition, the cooling cycle device (1) according to one embodiment of the present disclosure can also be applied to an outdoor unit.

[0235] A cooling cycle device according to one embodiment of the present disclosure comprises: a first heat exchanger (100) arranged to release heat; a second heat exchanger (200) arranged to absorb heat; and a magnetic cooling device (300) disposed between the first heat exchanger (100) and the second heat exchanger (200) and arranged to operate by sequentially switching between a first mode (M1) and a second mode (M2). The magnetic cooling device (300) comprises: a magnetic heat material (310) arranged to allow a heat transfer fluid to flow; a magnet (320) arranged to form a magnetic field around the magnetic heat material; and a current generating device (330) disposed adjacent to the magnetic heat material (310) and arranged to generate a current. In the first mode (M1), the magnet (320) approaches the magnetic heat material (310), and the current generating device (330) generates current in a first direction (d1) to cause a heat transfer fluid having an elevated temperature to flow toward the first heat exchanger (100). In the second mode (M2), the magnet (320) moves away from the magnetic heat material (310), and the current generating device (330) generates current in a second direction (d2) to cause a heat transfer fluid having a lowered temperature to flow toward the second heat exchanger (200).

[0236] The magnet (320) may be configured to be movable and / or rotated relative to the magnetic heat material (310) so as to approach the magnetic heat material (310) or move away from the magnetic heat material (310).

[0237] The first direction (d1) and the second direction (d2) may be orthogonal to the direction of the magnetic field (B) formed by the magnet (320).

[0238] The first direction (d1) and the second direction (d2), respectively, may be orthogonal to the direction of movement of the heat transfer fluid toward the first heat exchanger or the second heat exchanger.

[0239] The first direction (d1) and the second direction (d2) may be opposite directions to each other.

[0240] The magnetic calorific material (310) may be composed of a plurality of magnetic calorific blocks (3101, 3102, 3103, 3104, 3105, 3106) arranged spaced apart by a predetermined gap (s) and having different Curie temperatures. The current generating device (330) may include at least one electrode (331) arranged to correspond to the predetermined gap (s).

[0241] The above current generating device (330) may include a first electrode (3311); and a second electrode (3312) spaced apart from the first electrode (3311) by a predetermined gap.

[0242] In the first mode (M1), the current generating device (330) can generate a current flowing from the second electrode (3312) to the first electrode (3311). In the second mode (M2), the current generating device (330) can generate a current flowing from the first electrode (3311) to the second electrode (3312).

[0243] The above magnetic heat material may be a first magnetic heat material (310a). The magnetic cooling device may further include a second magnetic heat material (310b) spaced apart from the first magnetic heat material (310a) and arranged to allow a heat transfer fluid to flow.

[0244] The current generating device (330) can generate a current in the first magnetic heat material (310a) in one of the first direction (d1) and the second direction (d2) and generate a current in the second magnetic heat material (310b) in the other of the first direction (d1) and the second direction (d2) so that the heat transfer fluid flowing through the first magnetic heat material (310a) and the heat transfer fluid flowing through the second magnetic heat material (310b) move in opposite directions to each other.

[0245] The magnetic heat material (310) may include a plurality of magnetic heat materials (310). The plurality of magnetic heat materials (310) may be arranged in a circumferential direction with respect to a central axis (C). The magnet (320) may be provided to be rotatable with respect to the plurality of magnetic heat materials (310) with respect to the central axis (C).

[0246] The above current generating device (330) may include a plurality of electrodes (331). The plurality of magnetic heat materials (310) and the plurality of electrodes (331) may be arranged alternately.

[0247] The above magnetic cooling device (300) may include: a case (340) provided to accommodate the magnetic heat material (310); a first inlet (341) formed on a first side of the case (340) and provided to allow heat transfer fluid to flow in from the second heat exchanger (200); a first outlet (342) formed on a second side of the case (340) and provided to allow heat transfer fluid to flow out toward the first heat exchanger (100); a second inlet (343) formed on a second side of the case (340) and provided to allow heat transfer fluid to flow in from the first heat exchanger (100); and a second outlet (344) formed on one side of the case (340) and provided to allow heat transfer fluid to flow out toward the second heat exchanger (200).

[0248] The current generating device (330) may include: a first electrode (3313) provided between the first inlet (341) and the second outlet (344); a second electrode (3314) spaced apart from the first electrode (3313) with the first inlet (341) in between; a third electrode (3315) spaced apart from the first electrode (3313) with the second outlet (344) in between; a fourth electrode (3316) provided between the second inlet (343) and the first outlet (342); a fifth electrode (3317) spaced apart from the fourth electrode (3316) with the first outlet (342) in between; and a sixth electrode (3318) spaced apart from the fourth electrode (3316) with the second inlet (343) in between.

[0249] In the first mode (M1), the current generating device (330) can generate a current flowing from the second electrode (3314) to the first electrode (3313) and a current flowing from the fifth electrode (3317) to the fourth electrode (3316). In the second mode (M2), the current generating device (330) can generate a current flowing from the third electrode (3315) to the first electrode (3313) and a current flowing from the sixth electrode (3318) to the fourth electrode (3316).

[0250] A magnetic cooling device according to one embodiment of the present disclosure may include: a magnetic heat quantity material (310) which is a magnetic heat quantity material whose temperature changes based on a magnetic field, which heats a heat transfer fluid as the temperature rises and cools a heat transfer fluid as the temperature falls; a magnet that forms the magnetic field; and a current generating device (330) provided to generate a current. While the magnet (320) approaches the magnetic heat quantity material (310), the heat transfer fluid is heated by the magnetic heat quantity material whose temperature has risen, and the current generating device (330) may generate a current in a second direction (d1) that intersects the first direction (d3) to move the heated heat transfer fluid in a first direction (d3). While the magnet (320) moves away from the magnetic heat material (310), the heat transfer fluid is cooled by the magnetic heat material with reduced temperature, and the current generating device (330) can generate a current in a fourth direction (d2) that intersects the third direction (d4) to move the cooled heat transfer fluid in a third direction (d4).

[0251] The first direction (d3) and the third direction (d4) may be opposite directions to each other. The second direction (d1) and the fourth direction (d2) may be opposite directions to each other.

[0252] The magnetic calorific material (310) may be composed of a plurality of magnetic calorific blocks (3101, 3102, 3103, 3104, 3105, 3106) arranged spaced apart by a predetermined gap (s) and having different Curie temperatures. The current generating device (330) may include at least one electrode (331) arranged to correspond to the predetermined gap (s).

[0253] The magnetic cooling device may further include a driving device (370) configured to move and / or rotate the magnet (320) relative to the magnetic heat material (310).

[0254] A cooling cycle device according to one embodiment of the present disclosure may include: a first heat exchanger (100) configured to release heat; a second heat exchanger (200) configured to absorb heat; and a magnetic cooling device (300) disposed between the first heat exchanger (100) and the second heat exchanger (200). The magnetic cooling device (300) may include: a magnetic heat quantity material (310) whose temperature changes based on a magnetic field, which heats a heat transfer fluid as the temperature rises and cools the heat transfer fluid as the temperature falls; and a current generating device (330) provided to generate a current in a first direction (d1) or a current in a second direction (d2) in the magnetic heat quantity material. The heat transfer fluid whose temperature has risen may flow toward the first heat exchanger (100) by the current in the first direction (d1). The heat transfer fluid, cooled to a temperature, can flow toward the second heat exchanger (200) by the current in the second direction (d2).

[0255] According to one embodiment of the present disclosure, the magnetic cooling device does not require a pump, so it can have a compact structure and noise can be reduced.

[0256] According to one embodiment of the present disclosure, the heat transfer efficiency can be improved by using an electrically conductive fluid in a magnetic cooling device.

[0257] The effects obtainable from the present disclosure are not limited to those mentioned above, and other unmentioned effects will be clearly understood by those skilled in the art to which the present disclosure belongs from the description below.

[0258] At least one of the components, parts, modules, or units (hereinafter collectively referred to as “components”) shown as blocks in the drawings or described in the specification may be implemented in various numbers of hardware, software, and / or firmware structures that perform each of the functions described above according to one or more embodiments. For example, at least one of these components may use an integrated circuit structure, such as a memory, processor, logic circuit, or look-up table, capable of performing each of the functions through the control of one or more microprocessors or other control devices. Additionally, at least one of these components may be specifically implemented as part of a module, program, or code that includes one or more executable instructions for performing a specific logic function and is executed by one or more microprocessors or other control devices. Furthermore, at least one of these components may include or be implemented by a processor, such as a central processing unit (CPU) or a microprocessor, that performs the corresponding function. Two or more of these components may be combined and implemented as a single component that performs all operations or functions of the two or more combined components. Additionally, some functions of at least one of these components may be performed by other components. Furthermore, although a bus is not depicted in the block diagram above, communication between components may be performed via a bus. The functional aspects of the above embodiment may be implemented as algorithms executed on one or more processors. Additionally, components represented as blocks or processing steps may utilize various prior art related to electronic device configuration, signal processing and / or control, data processing, etc.

[0259] Specific embodiments have been illustrated and described above. However, the invention is not limited to the embodiments described above, and those skilled in the art may make various modifications without departing from the essence of the technical concept of the invention as described in the following claims.

Claims

1. A first heat exchanger configured to release heat; A second heat exchanger configured to absorb heat; and A magnetic cooling device disposed between the first heat exchanger and the second heat exchanger and configured to operate by sequentially switching between a first mode and a second mode; comprising The above magnetic cooling device is, A magnetic calorimetric material arranged to allow a heat transfer fluid to flow; A magnet arranged to form a magnetic field around the above-mentioned magnetic heat material; and A current generating device disposed adjacent to the above-mentioned magnetic heat material and configured to generate current; comprising In the first mode above, the magnet approaches the magnetic heat material, and the current generating device generates a current in a first direction to cause a heat transfer fluid having an elevated temperature to flow toward the first heat exchanger, and A cooling cycle device in which, in the second mode, the magnet moves away from the magnetic heat material, and the current generating device generates a current in a second direction to cause a heat transfer fluid having a lowered temperature to flow toward the second heat exchanger.

2. In Paragraph 1, The above magnet is a cooling cycle device capable of moving and / or rotating relative to the magnetic thermal material so as to approach or move away from the magnetic thermal material.

3. In Paragraph 1, A cooling cycle device in which the first direction and the second direction are orthogonal to the direction of the magnetic field formed by the magnet.

4. In Paragraph 1, A cooling cycle device in which the first direction and the second direction are orthogonal to the direction of movement of the heat transfer fluid toward the first heat exchanger or the second heat exchanger.

5. In Paragraph 1, A cooling cycle device in which the first direction and the second direction are opposite directions.

6. In Paragraph 1, The above-described magnetic calorimetric material is composed of a plurality of magnetic calorimetric blocks arranged spaced apart by a predetermined gap and having different Curie temperatures, and The above current generating device is a cooling cycle device comprising at least one electrode arranged to correspond to the above predetermined gap.

7. In Paragraph 6, The above current generating device is, First electrode; and A cooling cycle device comprising: a second electrode spaced apart from the first electrode by a predetermined gap.

8. In Paragraph 7, In the first mode above, the current generating device generates a current flowing from the second electrode to the first electrode, and In the second mode above, the current generating device is a cooling cycle device that generates a current flowing from the first electrode to the second electrode.

9. In Paragraph 1, The above magnetic calorific material is a first magnetic calorific material, and The above magnetic cooling device is a cooling cycle device further comprising a second magnetic heat material spaced apart from the first magnetic heat material and arranged to allow a heat transfer fluid to flow.

10. In Paragraph 9, The above current generating device is, So that the heat transfer fluid flowing through the first magnetic heat material and the heat transfer fluid flowing through the second magnetic heat material move in opposite directions to each other. A cooling cycle device that generates a current in one of the first direction and the second direction in the first magnetic heat material, and generates a current in the remaining of the first direction and the second direction in the second magnetic heat material.

11. In Paragraph 1, The above magnetic calorimetric material includes a plurality of magnetic calorimetric materials, and Multiple magnetic calorimetric materials are arranged circumferentially with respect to a central axis, and The above magnet is a cooling cycle device rotatable with respect to the plurality of magnetic thermal materials around the above central axis.

12. In Paragraph 11, The above current generating device includes a plurality of electrodes, and A cooling cycle device in which the plurality of magnetic heat materials and the plurality of electrodes are alternately arranged.

13. In Paragraph 1, The above magnetic cooling device is, A case provided to accommodate the above-mentioned magnetic heat material; A first inlet formed on the first side of the above case and arranged to allow heat transfer fluid from the second heat exchanger to flow in; A first outlet formed on the second side of the above case and arranged to discharge a heat transfer fluid toward the first heat exchanger; A second inlet formed on the second side of the above case and arranged to allow heat transfer fluid from the first heat exchanger to flow in; and A cooling cycle device comprising: a second outlet formed on one side of the above case and arranged to discharge a heat transfer fluid toward the second heat exchanger.

14. In Paragraph 13, The above current generating device is, A first electrode provided between the first inlet and the second outlet; A second electrode spaced apart from the first electrode with the first inlet in between; A third electrode spaced apart from the first electrode with the second outlet in between; A fourth electrode provided between the second inlet and the first outlet; A fifth electrode spaced apart from the fourth electrode with the first outlet in between; and A cooling cycle device comprising: a sixth electrode spaced apart from the fourth electrode with the second inlet in between.

15. In Paragraph 14, In the first mode above, the current generating device generates a current flowing from the second electrode to the first electrode and a current flowing from the fifth electrode to the fourth electrode, and In the second mode above, the current generating device is a cooling cycle device that generates a current flowing from the third electrode to the first electrode and a current flowing from the sixth electrode to the fourth electrode.

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