JP2018146154A - Heat exchanger and magnetic heat pump device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a heat exchanger capable of suppressing influence of an anti-magnetic field with continuous temperature gradient easily generated, and capable of suppressing deformation or fracture of a linear body due to liquid pressure even in a case where the linear body comprising a magnetic heat quantity effect material is made thin.SOLUTION: An MCM heat exchanger 10 includes a first laminate 11A constituted by laminating a plurality of first mesh members 12A-12D, and a container 13 storing the first laminate 11A. The respective first mesh members 12A-12D are constituted by weaving a plurality of wires. The plurality of wires have a first wire 121 composed of a first magnetic heat quantity effect material having a first Curie point T, and a second linear body 122 composed of a second magnetic heat quantity effect material having a second Curie point Tdifferent from the first Curie point T.SELECTED DRAWING: Figure 3

Description

  The present invention relates to a heat exchanger used in a magnetic heat pump apparatus using a magnetocaloric effect, and a magnetic heat pump apparatus including the heat exchanger.

  As a magnetocaloric element used in a magnetocaloric effect type heat pump device, in order to facilitate the generation of a continuous temperature gradient, a first block formed of a first material and a second block formed of a second material In addition, there is known one in which a mixing unit provided in an adjacent portion between the first block and the second block is connected in series (so-called cascade connection) (see, for example, Patent Document 1).

  In this magnetocaloric element, the first material exhibits a magnetocaloric effect in the first temperature zone, and the second material exhibits a magnetocaloric effect in a second temperature zone partially overlapping with the first temperature zone, In the mixing portion, the first material and the second material exist in a mixed state. Further, a rod-like body is exemplified as the shape of each element member constituting the first and second blocks (see particularly paragraph [0107] of Patent Document 1).

JP-A-2006-99040

  Generally, when the magnetic field application direction is parallel to the longitudinal direction of the magnetocaloric effect material, the influence of the demagnetizing field is reduced, whereas the magnetic field application direction is orthogonal to the longitudinal direction of the magnetocaloric effect material. If so, the influence of the demagnetizing field becomes large. For this reason, in the magnetocaloric element described above, the demagnetizing field can be suppressed by arranging the element member so that the longitudinal direction of the rod-shaped element member matches the direction of the magnetic field. However, in this case, the flow direction of the heat transport medium is orthogonal to the longitudinal direction of the element member.

  On the other hand, from the viewpoint of improving heat exchange efficiency, it is preferable to increase the contact area between the element member and the heat exchange medium by thinning the rod-shaped element member. However, when the rod-shaped element member is thinned, there is a problem that the element member may be deformed or broken by the pressure of the heat transport medium flowing in the orthogonal direction.

  The problem to be solved by the present invention is to suppress the influence of a demagnetizing field while facilitating the generation of a continuous temperature gradient, and even if the linear body made of a magnetocaloric effect material is thinned, the linear shape due to the pressure of the fluid It is providing the heat exchanger which can suppress a deformation | transformation and a fracture | rupture of a body, and a magnetic heat pump apparatus provided with the heat exchanger.

  [1] A heat exchanger according to the present invention includes a first laminated body configured by laminating a plurality of first mesh members, and a container that accommodates the first laminated body, The first mesh member includes a plurality of linear bodies, and the plurality of linear bodies includes a first magnetocaloric effect material having a first Curie point. A heat exchanger including a linear body and a second linear body made of a second magnetocaloric material having a second Curie point different from the first Curie point.

  [2] In the above invention, the container has a first opening located at one end and a second opening located at the other end, and the first opening The direction toward the second opening and the stacking direction of the plurality of first mesh members may be substantially parallel.

  [3] In the above invention, as the plurality of first mesh members approach the second opening from the first opening, the number of the first linear bodies and the number of the second linear bodies are increased. You may comprise so that ratio with a number may change in steps.

  [4] In the above invention, the first linear body extends in the first extending direction, and the second linear body extends in the second extending direction that intersects the first extending direction. The plurality of first mesh members extend in a direction of movement, and the first and second directions of extension of the plurality of first mesh members change stepwise as they approach the second opening from the first opening. It may be configured to.

  [5] In the above invention, an intersection angle between the first extending direction and the second extending direction may be substantially the same among the plurality of first mesh members.

  [6] In the above invention, the plurality of first mesh members include a first opening-side mesh member disposed closer to the first opening than a midway position in the stacking direction, and the midway positions in the stacking direction. A second opening-side mesh member disposed closer to the second opening than the first opening-side mesh member with respect to the magnetic field application direction of the magnetic field applied to the linear body. The first extending direction is arranged so as to be substantially parallel, and the second opening-side mesh member is arranged so that the second extending direction is substantially parallel to the magnetic field application direction. May be arranged.

  [7] In the above invention, the heat exchanger includes a second laminated body constituted by laminating a second mesh member, and a third laminated body constituted by laminating a third mesh member. The second mesh member is configured by weaving a plurality of the first linear bodies, and the third mesh member is configured by weaving a plurality of the second linear bodies. The second stacked body is accommodated in the container so as to be positioned closer to the first opening than the first stacked body in the stacking direction, and the third stacked body is You may accommodate in the said container so that it may be located in the said 2nd opening side rather than a said 1st laminated body in a direction.

  [8] A magnetic heat pump apparatus according to the present invention includes at least one heat exchanger described above, and a magnetic field changing unit that applies a magnetic field to the linear body and changes the magnitude of the magnetic field. Device.

  [9] In the above invention, the magnetic heat pump device is applied to the linear body by first and second external heat exchangers respectively connected to the heat exchanger via piping and the magnetic change means. A fluid supply means for supplying fluid from the heat exchanger to the first external heat exchanger or the second external heat exchanger according to a change in the magnitude of the magnetic field.

  According to the present invention, the first and second linear bodies constituting the first mesh member have different Curie points. For this reason, a continuous temperature gradient can be easily generated in the heat exchanger.

  In the present invention, a plurality of linear bodies made of a magnetocaloric effect material are woven together to form first mesh members, and the plurality of first mesh members are laminated to each other. Store in container. For this reason, while suppressing the influence of a demagnetizing field, even if it makes a linear body thin, it becomes possible to suppress the deformation | transformation and fracture | rupture of a linear body by the pressure of a fluid.

FIG. 1 is a diagram showing an overall configuration of a magnetic heat pump device according to a first embodiment of the present invention, and shows a state in which a piston is in a first position. FIG. 2 is a diagram illustrating the overall configuration of the magnetic heat pump device according to the first embodiment of the present invention, and is a diagram illustrating a state where the piston is in the second position. FIG. 3 is an exploded perspective view showing the configuration of the MCM heat exchanger in the first embodiment of the present invention. FIG. 4 is a cross-sectional view of the MCM heat exchanger according to the first embodiment of the present invention, and is a cross-sectional view of the MCM heat exchanger cut along the longitudinal direction. FIG. 5 is a cross-sectional view taken along line VV in FIG. FIG. 6A is an enlarged view showing the first composite mesh member in the first embodiment of the present invention, which is an enlarged view of a VI part of FIG. 5, and FIG. It is an enlarged view which shows the 2nd composite mesh member in 1st Embodiment. Fig.7 (a) is an enlarged view which shows the 3rd composite mesh member in 1st Embodiment of this invention, FIG.7 (b) shows the 4th composite mesh member in 1st Embodiment of this invention. It is an enlarged view shown. Fig.8 (a) is an enlarged view which shows the 1st single mesh member in 1st Embodiment of this invention, FIG.8 (b) is the 2nd single mesh in 1st Embodiment of this invention. It is an enlarged view which shows a member. FIG. 9 is an exploded perspective view showing the configuration of the MCM heat exchanger in the second embodiment of the present invention. FIG. 10 is a cross-sectional view of the MCM heat exchanger according to the second embodiment of the present invention, which is a cross-sectional view of the MCM heat exchanger cut along the longitudinal direction. FIG. 11A is an enlarged view showing a fifth composite mesh member in the second embodiment of the present invention, and FIG. 11B shows a sixth composite mesh member in the second embodiment of the present invention. It is an enlarged view shown.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

<< First Embodiment >>
1 and FIG. 2 are diagrams showing the overall configuration of the magnetic heat pump device according to the first embodiment of the present invention. FIGS. 3 to 5 are diagrams showing the MCM heat exchanger according to the first embodiment of the present invention. FIG. ) To FIG. 7 (b) are views showing the first to fourth composite mesh members in the first embodiment of the present invention, and FIG. 8 (a) and FIG. 8 (b) are the first in the first embodiment of the present invention. It is a figure which shows the 1 and 2nd single mesh member.

  The magnetic heat pump device 1 in the present embodiment is a heat pump device using a magnetocaloric effect, and as shown in FIGS. 1 and 2, first and second MCM heat exchangers 10 and 20, The piston 30, the permanent magnet 40, the low temperature side heat exchanger 50, the high temperature side heat exchanger 60, the pump 70, the pipes 81 to 84, and the switching valve 90 are provided.

  The first and second MCM heat exchangers 10 and 20 in the present embodiment correspond to an example of a heat exchanger in the present invention, and the piston 30 and the permanent magnet 40 in the present embodiment serve as an example of a magnetic changing unit in the present invention. The low temperature side heat exchanger 50 and the high temperature side heat exchanger 60 correspond to an example of the first and second external heat exchangers in the present invention, and the pipes 81 to 84 in the present embodiment are the pipes in the present invention. It corresponds to an example, and the pump 70 and the switching valve 90 in the present embodiment correspond to an example of the fluid supply means in the present invention.

  As shown in FIGS. 3 to 5, the first MCM heat exchanger 10 includes first to third stacked bodies 11 </ b> A to 11 </ b> C and a cylindrical container (case) in which the stacked bodies 11 </ b> A to 11 </ b> C are accommodated. 13 and terminal members 16 and 17 connected to both ends of the container 13. The first to third stacked bodies 11A to 11C are different in that the types of mesh members stacked on each other are different. The first to third stacked bodies 11A to 11C in the present embodiment correspond to examples of the first to third stacked bodies in the present invention, respectively, and the container 13 in the present embodiment corresponds to an example of the container in the present invention. .

  In addition, in this embodiment, although the 1st-3rd laminated body 11A-11C is accommodated in the one container 13, the structure of a MCM heat exchanger is not specifically limited to this. For example, the MCM heat exchanger may be configured by housing the first to third laminates in separate containers and connecting these containers to each other.

  As shown in FIGS. 3 and 4, the first laminate 11A includes a plurality of first composite mesh members 12A, a plurality of second composite mesh members 12B, and a plurality of third composite mesh members 12C. And a plurality of fourth composite mesh members 12D. As shown in FIGS. 6A to 7B, the first to fourth composite mesh members 12 </ b> A to 12 </ b> D are each a net-like member configured by weaving two kinds of wire rods 121 and 122. is there.

  The first to fourth composite mesh members 12A to 12D in the present embodiment correspond to an example of the first mesh member in the present invention, and the first and second wire rods 121 and 122 in the present embodiment are in the present invention. It corresponds to an example of a linear body. In addition, if the kind of wire which comprises the composite mesh members 12A-12D is plural, it will not be specifically limited.

The difference between the first to fourth composite mesh members 12A to 12D is that the number of first wire rods 121 included in each composite mesh member 12A to 12D is as shown in FIGS. 6 (a) to 7 (b). The only difference is the ratio (N ₁ : N ₂ ) of the number (N ₂ ) of (N ₁ ) and the number of second wires 122 (N ₂ ). In FIG. 6A to FIG. 7B, the first wire 121 is indicated by a white line, and the second wire 122 is indicated by a solid line.

  The 1st and 2nd wire 121,122 is comprised from the magnetocaloric effect material (MCM: Magnetocaloric Effect Material) which has a magnetocaloric effect. When a magnetic field is applied to the wires 121 and 122 composed of the MCM, the magnetic spins are reduced by aligning the electron spins, the wires 121 and 122 generate heat, and the temperature rises. On the other hand, when the magnetic field is removed from the wires 121 and 122, the electron spin becomes messy and the magnetic entropy increases, and the wires 121 and 122 absorb heat and the temperature decreases.

  The MCM constituting the wires 121 and 122 is not particularly limited as long as it is a magnetic material. For example, the MCM has a Curie point (Curie temperature) in a normal temperature range of about 10 ° C. to 30 ° C. It is preferable that it is a magnetic body which exhibits. Specific examples of such MCMs include gadolinium (Gd), gadolinium alloys, lanthanum-iron-silicon (La-Fe-Si) compounds, and the like.

In particular, in the present embodiment, the first wire 121 is composed of a first MCM having a first Curie point T _C1 , and this first MCM has a magnetocaloric value in the first temperature range R _TC1 . The effect is expressed. In contrast, the second wire 122 is composed of a second MCM having a second Curie point _{T C2,} the second MCM may express magnetocaloric effect in the second temperature range _{R TC2} To do. Second Curie point _{T C2} of the second wire 122 is relatively high with respect to the first Curie point _{T C1} of the first wire _{121 (T C2> T C1)} .

That is, in the present embodiment, the first wire 121 and the second wire 122 are composed of MCMs having different Curie points T _C1 and T _C2 . Further, in the present embodiment, the first temperature range R _TC1 and the second temperature range R _TC2 are different from each other, and the entire second temperature range R _{TC2 is} the entire first temperature range R _TC1 . On the other hand, it is relatively high (R _TC2 > R _TC1 ). At least a portion of the second temperature range _{R TC2} is if the deviation from the first temperature range _{R TC1,} the first temperature range _{R TC1} and the second temperature range _{R TC2} are partially overlapping Also good.

The first wire 121 in the present embodiment corresponds to an example of the first linear body in the present invention, and the second wire 122 in the present embodiment corresponds to an example of the second linear body in the present invention. Further, an example of a second Curie point in the first Curie point T _C1 corresponds to an example of a first Curie point in the present invention in this embodiment, the second Curie point T _C2 in the present embodiment the present invention It corresponds to.

  Although the 1st and 2nd wire 121,122 in this embodiment is a wire which has circular cross-sectional shape, the 1st and 2nd wire 121,122 may have cross-sectional shapes other than circular. Although it does not specifically limit as a wire diameter of the 1st and 2nd wire 121,122, For example, it is preferable that it is 0.01-1 mm.

  Further, as the first and second linear bodies, instead of the first and second wire rods 121 and 122, bundle wires formed by bundling a plurality of wire rods may be used. In this case, the “bundle wire” corresponds to an example of the first and second linear bodies in the present invention.

  Alternatively, as the first and second linear bodies, instead of the first and second wire rods 121 and 122, a stranded wire configured by twisting a plurality of wire rods may be used. In this case, the “twisted wire” corresponds to an example of the first and second linear bodies in the present invention.

  Although it does not specifically limit as how to twist a wire, For example, a collective twist, a concentric twist, a composite twist etc. can be illustrated. Aggregate twisting is a twisting method in which a plurality of wires are gathered together and twisted in the same direction around the axis of the aggregate. Concentric twisting is a twisting method in which concentric circles are twisted around a plurality of wires around the core wire. The composite twist is a twisting method in which a child twisted wire obtained by twisting a plurality of wires into a concentric twist or a collective twist is further twisted into a concentric twist or a collective twist.

In the first composite mesh member 12A, as shown in FIG. 5 and FIG. 6A, a plurality of wire rods 121 and 122 extending linearly along the Z-axis direction have a first pitch P _1. Are arranged substantially parallel to each other. On the other hand, the plurality of wires 121 and 122 extending linearly along the X-axis direction are also arranged substantially parallel to each other at the second pitch P ₂ that is the same as the _first pitch P _1. (P ₁ = P ₂ ). That is, the shape of each mesh 123 defined by the plurality of wires 121 and 122 is a square. “Pitch” in the present embodiment means the shortest distance between the centers of adjacent wires.

  The shape of the mesh 123 of the first composite mesh member 12A is not particularly limited to the above square. Although not particularly illustrated, for example, the shape of the mesh 123 of the first composite mesh member 12A may be a rectangle, a rhombus, or a parallelogram.

In the first composite mesh member 12A, the first wire 121 and the second wire 122 are mixed as a plurality of wires extending along the Z-axis direction. Similarly, the first wire 121 and the second wire 122 are mixed as a plurality of wires extending along the X-axis direction. As a result, as shown in FIG. 6 (a), the ratio of the number of first composite mesh number of the first wire 121 in the member 12A _{(N 1)} and the second wire 122 _{(N 2)} is 80: 20 (N ₁ : N ₂ = 80: 20).

  The second composite mesh member 12B is also a mesh-like member configured by weaving the first and second wire rods 121 and 122, and has a square mesh 123 having the same size as the first composite mesh member 12A. ing. Also in the second composite mesh member 12B, the first wire 121 and the second wire 122 are mixed as a plurality of wires extending along the Z-axis direction. Similarly, the first wire 121 and the second wire 122 are mixed as a plurality of wires extending along the X-axis direction.

In the second composite mesh member 12B, the number of the first wire 121 is reduced as compared with the first composite mesh member 12A, whereas the number of the second wire 122 is increased. ing. As a result, as shown in FIG. 6 (b), the ratio of the number of _first wires 121 (N ₁ ) to the number of second wires 122 (N ₂ ) in the second composite mesh member 12B is 60: 40 (N ₁ : N ₂ = 60: 40).

  The third composite mesh member 12C is also a mesh-like member configured by weaving the first and second wire rods 121 and 122, and has a square mesh 123 of the same size as the first composite mesh member 12A. ing. Also in the second composite mesh member 12B, the first wire 121 and the second wire 122 are mixed as a plurality of wires extending along the Z-axis direction. Similarly, the first wire 121 and the second wire 122 are mixed as a plurality of wires extending along the X-axis direction.

In the third composite mesh member 12C, the number of the first wire rods 121 is further reduced as compared with the second composite mesh member 12B, whereas the number of the second wire rods 122 is further increased. It has increased. As a result, as shown in FIG. 7A, the ratio of the number of _first wires 121 (N ₁ ) to the number of second wires 122 (N ₂ ) in the third composite mesh member 12C is 40:60. (N ₁ : N ₂ = 40: 60).

  The fourth composite mesh member 12D is also a mesh-like member configured by weaving the first and second wire rods 121 and 122, and has a square mesh 123 having the same size as the first composite mesh member 12A. ing. Also in the second composite mesh member 12B, the first wire 121 and the second wire 122 are mixed as a plurality of wires extending along the Z-axis direction. Similarly, the first wire 121 and the second wire 122 are mixed as a plurality of wires extending along the X-axis direction.

In the fourth composite mesh member 12D, the number of the first wire rods 121 is further reduced as compared with the above-described third composite mesh member 12C, whereas the number of the second wire rods 122 is further increased. It has increased. As a result, as shown in FIG. 7 (b), the ratio of the number of the fourth composite number of the first wire 121 in the mesh member 12D _{(N 1)} and the second wire 122 _{(N 2)} 20:80 (N ₁ : N ₂ = 20: 80).

  As shown in FIGS. 3 and 4, the first laminated body 11 </ b> A is configured by stacking the composite mesh members 12 </ b> A to 12 </ b> D described above. At this time, the composite mesh members 12A to 12D are stacked such that the meshes 123 overlap each other in the stacking direction of the composite mesh members 12A to 12D (Y-axis direction in the drawing). In the present embodiment, in the stacking direction, a plurality of first composite mesh members 12A, a plurality of second composite mesh members 12B, a plurality of three composite mesh members 12C, and a plurality of fourth composites. Composite mesh members 12A to 12D are stacked so as to be arranged in the order of the mesh members 12D.

As shown in FIGS. 3 and 4, the second stacked body 11 </ b> B is configured by stacking a plurality of first single mesh members 12 </ b> G on each other. As shown to Fig.8 (a), this 1st single mesh member 12G is a member which has the square mesh | network 123 of the same size as the above-mentioned 1st-4th composite mesh member 12A-12D. The first single mesh member 12G is configured by weaving only the first wire 121. That is, in the first single mesh member 12G, the ratio of the number of _first wires 121 (N ₁ ) to the number of second wires 122 (N ₂ ) is 100: 0 (N ₁ : N ₂ = 100: 0). In addition, in Fig.8 (a), the 1st wire 121 is shown with a white line. The first single mesh member 12G in the present embodiment corresponds to an example of the second mesh member in the present invention.

As shown in FIGS. 3 and 4, the third laminated body 11 </ b> C is configured by laminating a plurality of second single mesh members 12 </ b> H. As shown in FIG. 8B, the first single mesh member 12H is a member having a square mesh 123 having the same size as the first to fourth composite mesh members 12A to 12D. The second single mesh member 12H is configured by weaving only the second wire 122. That is, in the second single mesh member 12H, the ratio of the number of _first wires 121 (N ₁ ) to the number of second wires 122 (N ₂ ) is 0: 100 (N ₁ : N ₂ = 0: 100). In FIG. 8B, the second wire 122 is indicated by a solid line. The second single mesh member 12H in the present embodiment corresponds to an example of a third mesh member in the present invention.

  As shown in FIGS. 3 to 5, the container 13 that accommodates the first to third stacked bodies 11 </ b> A to 11 </ b> C includes an accommodation part 14 and a lid part 15, and has a cylindrical shape with a rectangular cross section. ing. The container 13 has a first opening 131 at one end thereof and a second opening 132 at the other end thereof. The shape of the container 13 is not particularly limited as long as it is a cylindrical shape. The first opening 131 of the container 13 in the present embodiment corresponds to an example of the first opening of the container in the present invention, and the second opening 132 of the container 13 in the present embodiment is the second opening of the container in the present invention. It corresponds to an example.

  The accommodating portion 14 includes a bottom portion 141 constituting a bottom plate of the container 13 and a pair of side portions 142 and 143 constituting side walls on both sides of the container 13. An opening 144 is formed between the upper ends of the pair of side portions 142 and 143, and as a result, the accommodating portion 14 is U-shaped in a cross section along a direction substantially perpendicular to the axial direction ( It has a substantially U-shaped cross-sectional shape.

  The lid 15 is a rectangular plate member. As shown in FIGS. 3 to 5, the lid portion 15 is fixed to the upper ends of the pair of side portions 142 and 143. The container 13 is formed by closing the opening 144 of the accommodating portion 14 by the lid portion 15.

  The first to third stacked bodies 11A to 11C are formed of the mesh members 12A to 12D, 12G, and 12H in the stacking direction (Y-axis direction in the drawing) and the axial direction of the container 13 (from the first opening 131 to the second opening). (Direction toward 132) is accommodated in the container 13 so as to substantially match. At this time, the first to third stacked bodies 11A to 11C are arranged so that the first stacked body 11A is interposed between the second stacked body 11B and the third stacked body 11C in the stacking direction. They are lined up with each other.

  Specifically, as the first opening 131 approaches the second opening 132, the second stacked body 11B, the first stacked body 11A, and the third stacked body 11C are arranged in this order. 1st-3rd laminated body 11A-11C is arranged. In addition, the first laminated body 11A is second so that the first composite mesh member 12A is adjacent to the second laminated body 11B and the fourth composite mesh member 12D is adjacent to the third laminated body 11C. Between the stacked body 11B and the third stacked body 11C.

That is, in the present embodiment, the number of first wires 121 (N ₁ ) decreases as the first opening 131 approaches the second opening 132, whereas the number of second wires 122 (N _2). ) is increasing, the ratio of the number of the first number of the wire 121 _{(N 1)} and the second wire _{122 (N 2) (N 1} : N 2) is, [100: 0] → [ 80: 20] → [60:40] → [40:60] → [20:80] → [0: 100].

  In addition, the mesh members 12A to 12D, 12G, and 12H are stacked so that the meshes 123 overlap in the stacking direction. For this reason, the flow path 124 (see FIG. 4) through which the liquid refrigerant (described later) circulates by the series of meshes 123 of the plurality of mesh members 12A to 12D, 12G, and 12H constituting the first to third stacked bodies 11A to 11C. ) Is formed. In FIG. 4, in order to facilitate understanding of the flow path 124, the number of wire members constituting the mesh members 12 </ b> A to 12 </ b> D, 12 </ b> G, and 12 </ b> H is reduced and the interval between the wire members is increased as compared with other drawings. Are shown.

  In addition, the kind of composite mesh member which comprises 11 A of 1st laminated bodies is not specifically limited to said 4 types. 11 A of 1st laminated bodies may be comprised with 2 or 3 types of composite mesh members, and may be comprised with 5 or more types of composite mesh members.

Further, as the first opening 131 approaches the second opening 132, the number (N ₁ ) of the first wires 121 decreases and the number (N ₂ ) of the second wires 122 increases. the ratio of the number of the first wire 121 in each of the composite mesh member _{(N 1)} and the number of the second wire _{122 (N 2) (N 1} : N 2) is not particularly limited to the above.

Further, in the first to fourth composite mesh members 12A to 12D, as the wire extending along the Z-axis direction, the first and second wire rods 121 and 122 are mixed and extended along the X-axis direction. Although the 1st and 2nd wire 121,122 was mixed as an existing wire, it is not limited to this in particular. If the number (N ₁ ) of the first wires 121 decreases and the number (N ₂ ) of the second wires 122 increases as the first opening 131 approaches the second opening 132, the Z axis A plurality of wires extending along one of the direction and the X-axis direction are constituted by both the first and second wires 121 and 122, and extending along the other of the X-axis direction or the Z-axis direction. The wire rod may be composed of only one of the first or second wire rods 121 and 122.

  As shown in FIGS. 3 and 4, the first terminal member (connection member) 16 includes a connection port 161 and a connection port 162 larger than the connection port 161. As the first terminal member 16, for example, a heat shrinkable tube, a resin molded product, a metal processed product, or the like can be used.

  One end of the container 13 is inserted into the connection port 162 of the first terminal member 16, and the first terminal member 16 is fixed to the end of the container 13. In addition, a first low temperature side pipe 81 is connected to the connection port 161 of the first terminal member 16, and as shown in FIG. 1, the first MCM heat exchanger 10 includes the first low temperature side pipe 81. The low temperature side heat exchanger 50 communicates with the low temperature side pipe 81.

  The second terminal member 17 has the same configuration as the first terminal member 16 described above. The other end of the container 13 is inserted into the connection port 172 of the second terminal member 17, and the second terminal member 17 is fixed to the end of the container 13. Further, a first high temperature side pipe 83 is connected to the connection port 171 of the second terminal member 17, and as shown in FIG. 1, the first MCM heat exchanger 10 has the first high temperature side pipe 83. The high temperature side heat exchanger 60 communicates with the high temperature side pipe 83.

  The container 23 of the second MCM heat exchanger 20 also accommodates the first to third laminates 21A to 21C (see FIG. 2), and the container 23 is the same as the first MCM heat exchanger 10. One end of the first terminal member is inserted into the first terminal member, and the first terminal member is fixed to the container 23. The other end of the container 23 is inserted into the second terminal member, and the second terminal member is fixed to the container 23. The second MCM heat exchanger 20 communicates with the low temperature side heat exchanger 50 via a second low temperature side pipe 82 connected to the connection port 261 of the first terminal member. The second MCM heat exchanger 20 communicates with the high temperature side heat exchanger 60 via the second high temperature side pipe 84 connected to the connection port 271 of the second terminal member.

  In addition, the 1st-3rd laminated bodies 21A-21C of the 2nd MCM heat exchanger 20 have the same structure as the 1st-3rd laminated bodies 11A-11C of the 1st MCM heat exchanger 10. ing. The container 23 of the second MCM heat exchanger 20 has the same configuration as the container 13 of the first MCM heat exchanger 10. Further, the terminal member of the second MCM heat exchanger 20 has the same configuration as the terminal members 16 and 17 of the first MCM heat exchanger 10.

  For example, when the air conditioner using the magnetic heat pump device 1 in the present embodiment functions as cooling, the room is cooled by exchanging heat between the low temperature side heat exchanger 50 and the indoor air, The heat is radiated to the outside by performing heat exchange between the high temperature side heat exchanger 60 and the outside.

  On the other hand, when the air conditioner functions as heating, the room is warmed by exchanging heat between the high temperature side heat exchanger 60 and the indoor air, and the low temperature side heat exchanger 50 and the outdoor side. Heat is absorbed from outside by exchanging heat with other air.

  As described above, a circulation path including the four heat exchangers 10, 20, 50, 60 is formed by the two low temperature side pipes 81, 82 and the two high temperature side pipes 83, 84. A liquid medium is pumped into the circulation path. Specific examples of the liquid medium include liquids such as water, antifreeze, ethanol solution, or a mixture thereof. The liquid medium in the present embodiment corresponds to an example of a fluid in the present invention.

  The two MCM heat exchangers 10 and 20 are accommodated inside the piston 30. The piston 30 can reciprocate between the pair of permanent magnets 40 by an actuator 35. Specifically, the piston 30 can reciprocate between a “first position” as shown in FIG. 1 and a “second position” as shown in FIG. In addition, as an example of the actuator 35, an air cylinder etc. can be illustrated, for example.

  Here, the “first position” refers to a piston in which the first MCM heat exchanger 10 is not interposed between the permanent magnets 40 and the second MCM heat exchanger 20 is interposed between the permanent magnets 40. 30 positions. On the other hand, the “second position” is a piston in which the first MCM heat exchanger 10 is interposed between the permanent magnets 40 and the second MCM heat exchanger 20 is not interposed between the permanent magnets 40. 30 positions.

  Note that the permanent magnet 40 may be reciprocated by the actuator 35 instead of the first and second MCM heat exchangers 10 and 20. Alternatively, an electromagnet having a coil may be used in place of the permanent magnet 40. In this case, a mechanism for moving the MCM heat exchangers 10, 20 or the magnet becomes unnecessary. In addition, when an electromagnet having a coil is used, the magnitude (intensity) of the magnetic field applied to the wires 121 and 122 is changed instead of the application / removal of the magnetic field to the wires 121 and 122 of the MCM heat exchangers 10 and 20. You may make it do.

  The switching valve 90 is provided in the first high temperature side pipe 83 and the second high temperature side pipe 84. The switching valve 90 switches the liquid medium supply destination to the first MCM heat exchanger 10 or the second MCM heat exchanger 20 by the pump 70 in conjunction with the operation of the piston 30 described above, The connection destination of the high temperature side heat exchanger 60 can be switched to the second MCM heat exchanger 20 or the first MCM heat exchanger 10.

  Next, operation | movement of the magnetic heat pump apparatus 1 in this embodiment is demonstrated, referring FIG.1 and FIG.2.

  First, when the piston 30 is moved to the “first position” shown in FIG. 1, the first to third stacked bodies 11 </ b> A to 11 </ b> C of the first MCM heat exchanger 10 are demagnetized and the temperature thereof decreases. Thus, the first to third stacked bodies 21A to 21C of the second MCM heat exchanger 20 are magnetized and the temperature rises.

  At the same time, the switching valve 90 causes the pump 70 → the first high temperature side pipe 83 → the first MCM heat exchanger 10 → the first low temperature side pipe 81 → the low temperature side heat exchanger 50 → the second low temperature side pipe. 82 → second MCM heat exchanger 20 → second high temperature side pipe 84 → high temperature side heat exchanger 60 → pump 70 is formed.

  For this reason, the liquid medium is cooled by the first to third stacked bodies 11A to 11C of the first MCM heat exchanger 10 whose temperature has decreased due to demagnetization, and the liquid medium is supplied to the low temperature side heat exchanger 50. The low temperature side heat exchanger 50 is cooled.

  On the other hand, the liquid medium is heated by the first to third stacked bodies 21A to 21C of the second MCM heat exchanger 20 that has been magnetized and the temperature thereof is increased, and the liquid medium is supplied to the high temperature side heat exchanger 60. Thus, the high temperature side heat exchanger 60 is heated.

  Next, when the piston 30 is moved to the “second position” shown in FIG. 2, the first to third stacked bodies 11 </ b> A to 11 </ b> C of the first MCM heat exchanger 10 are magnetized and the temperature rises. On the other hand, the 1st-3rd laminated bodies 21A-21C of the 2nd MCM heat exchanger 20 are demagnetized, and the temperature falls.

  At the same time, the switching valve 90 causes the pump 70 → second high temperature side pipe 84 → second MCM heat exchanger 20 → second low temperature side pipe 82 → low temperature side heat exchanger 50 → first low temperature side pipe. A “second path” consisting of 81 → first MCM heat exchanger 10 → first high temperature side pipe 83 → high temperature side heat exchanger 60 → pump 70 is formed.

  For this reason, the liquid medium is cooled by the first to third stacked bodies 21 </ b> A to 21 </ b> C of the second MCM heat exchanger 20 whose temperature has decreased due to demagnetization, and the liquid medium is supplied to the low temperature side heat exchanger 50. The low temperature side heat exchanger 50 is cooled.

  On the other hand, the liquid medium is heated by the first to third stacked bodies 11A to 11C of the first MCM heat exchanger 10 that has been magnetized and the temperature thereof is increased, and the liquid medium is supplied to the high temperature side heat exchanger 60. Thus, the high temperature side heat exchanger 60 is heated.

  By the reciprocation between the “first position” and the “second position” of the piston 30 described above, the first to third stacked bodies of the first and second MCM heat exchangers 10 and 20 are arranged. The application and removal of the magnetic field to and from 11A to 11C and 21A to 21C are repeated. Then, when the first and second MCM heat exchangers 10 and 20 reach a steady operation state, the first to third stacked bodies 11A to 11C and 21A of the first and second MCM heat exchangers 10 and 20 are obtained. A predetermined temperature gradient occurs at ~ 21C.

  That is, in the first to third stacked bodies 11A to 11C of the first MCM heat exchanger 10, the end on the first low temperature side pipe 81 side is the lowest temperature, and the first high temperature side pipe 83 side A temperature gradient occurs with the highest temperature at the end. Similarly, also in the 1st-3rd laminated bodies 21A-21C of the 2nd MCM heat exchanger 20, the edge part by the side of the 2nd low temperature side piping 82 is the lowest temperature, and the 2nd high temperature side piping 84 A temperature gradient occurs where the end on the side is the highest temperature.

  Here, generally, when the temperature gradient generated in the MCM heat exchanger includes a portion that deviates from the Curie point of the MCM, a sufficient magnetocaloric effect cannot be obtained.

In contrast, in the present embodiment, the first single mesh member 12G of the second laminate 11B positioned at the first low temperature side pipe 81 side, the first wire having a first Curie point T _C1 The second single mesh member 12H of the third laminated body 11C located on the first high temperature side pipe 83 side is composed of a second Curie point T _C2. The second Curie point T _C2 is composed of the wire rod 122 and is relatively higher than the first Curie point T _C1 of the first wire rod 121 (TC ₂ > TC ₁ ). For this reason, even if the temperature gradient which generate | occur | produces in the 1st-3rd laminated body 11A-11C of the 1st MCM heat exchanger 10 in a steady operation state is wide, a magnetocaloric effect can be obtained efficiently.

  In addition, for example, the Curie point of the MCM may change due to a performance difference between lots of the MCM. In such a case, the continuity of the temperature gradient generated in the cascade-connected MCMs may not be sufficient.

  In contrast, in the present embodiment, the first laminate 11A including the first to fourth composite mesh members 12A to 12D in which the first wire 121 and the second wire 122 are mixed is used as the second laminate. It is interposed between the body 11B and the third laminated body 11C. Thereby, a continuous temperature gradient can be easily generated in the first MCM heat exchanger 10.

  Furthermore, in this embodiment, in the stacking direction (Y-axis direction in the drawing) of the mesh members 12A to 12D, 12G, and 12H, a plurality of first single mesh members 12G, a plurality of first composite mesh members 12A, In order of the plurality of second composite mesh members 12B, the plurality of three composite mesh members 12C, the plurality of fourth composite mesh members 12D, and the plurality of second single mesh members 12H, the first to third The stacked bodies 11A to 11C are stacked.

That is, in this embodiment, as the first opening 131 of the container 13 approaches the second opening 132, the ratio of the number of first wire rods (N ₁ ) to the number of second wire rods 122 (N ₂ ). The _first to third stacked bodies 11A to 11C are stacked so that (N ₁ : N ₂ ) changes stepwise. For this reason, the temperature gradient which generate | occur | produces in the 1st MCM heat exchanger 10 can be made smooth.

  In the present embodiment, in the mesh members 12A to 12D, 12G, and 12H, the plurality of wires 121 and 122 along the Z-axis direction extend substantially parallel to the magnetic field application direction. For this reason, the demagnetizing field generated in the plurality of wires 121 and 122 along the Z-axis direction is compared with the case where the rod-shaped body is arranged so that the magnetic field application direction is orthogonal to the longitudinal direction of the magnetocaloric effect material. The influence can be reduced, and the magnetocaloric effect can be obtained effectively.

  Further, in the present embodiment, in the first MCM heat exchanger 10, the mesh members 12A to 12D, 12G, and 12H are configured by weaving the first and second wire rods 121 and 122 made of a magnetocaloric effect material. . Since these mesh members 12A to 12D, 12G, and 12H have rigidity capable of withstanding the pressure of the liquid medium, the first and second wire rods 121 and 122 are made thin even if the first and second wires 121 and 122 are thinned. And the deformation | transformation and fracture | rupture of the 2nd wire 121,122 can be suppressed.

  The second MCM heat exchanger 20 can obtain the same effects as those of the first MCM heat exchanger 10 described above.

<< Second Embodiment >>
FIGS. 9 and 10 are views showing an MCM heat exchanger according to the second embodiment of the present invention, and FIGS. 11A and 11B are fifth and sixth composite meshes according to the second embodiment of the present invention. It is a figure which shows a member.

  In the MCM heat exchanger 10 ′ in this embodiment, the configuration of the first stacked body 11 </ b> A ′ is different from that in the first embodiment, but the other configurations are the same as those in the first embodiment. Hereinafter, only the difference from the first embodiment will be described for the first stacked body 11A ′ in the second embodiment, and portions having the same configurations as those in the first embodiment will be denoted by the same reference numerals. Omitted.

  As shown in FIGS. 9 and 10, the first laminate 11A ′ in the present embodiment is configured by laminating a plurality of fifth composite mesh members 12E and a plurality of sixth composite mesh members 12F. Has been. The fifth and sixth composite mesh members 12E and 12F in the present embodiment are the same as those in the first embodiment in that the extending direction of the first and second wire rods 121 and 122 is associated with the magnetic application direction. This is different from the first to fourth composite mesh members 12A to 12D. The fifth and sixth composite mesh members 12E and 12F in the present embodiment correspond to an example of the first mesh member in the present invention.

Composite mesh member 12E of the fifth, as shown in FIG. 11 (a), together with the first wire 121 is extended linearly along the Z-axis direction, each other at a first pitch P ₁ They are arranged substantially in parallel. On the other hand, the plurality of second wire rods 122 extend linearly along the X-axis direction and are substantially parallel to each other at the same second pitch P ₂ as the first pitch P _1. They are arranged (P ₁ = P ₂ ). That is, in the fifth composite mesh member 12E, the first wire 121 and the second wire 122 are substantially orthogonal to each other, and the individual mesh 123 defined by the plurality of wires 121 and 122 is used. The shape is a square.

In the fifth composite mesh member 12E, the ratio of the number of _first wires 121 (N ₁ ) to the number of second wires 122 (N ₂ ) is 50:50 (N ₁ : N ₂ = 50: 50). In FIG. 11A, the first wire 121 is indicated by a white line, and the second wire 122 is indicated by a solid line.

  As shown in FIG. 11B, the sixth composite mesh member 12F is also a mesh-like member configured by weaving the first and second wire members 121 and 122, and the fifth composite mesh member 12E and It has a square mesh 123 of the same size. In the sixth composite mesh member 12F, the second wire 122 extends linearly along the Z-axis direction, and the first wire 121 extends linearly along the X-axis direction, The first wire 121 and the second wire 122 are substantially orthogonal to each other.

In the sixth composite mesh member 12F, the ratio of the number of _first wires 121 (N ₁ ) to the number of second wires 122 (N ₂ ) is the same as the fifth composite mesh member 12E described above. However, it is 50:50 (N ₁ : N ₂ = 50: 50). Also in FIG. 11B, the first wire 121 is indicated by a white line, and the second wire 122 is indicated by a solid line.

  The 5th composite mesh member 12E in this embodiment is equivalent to an example of the 1st opening side mesh member in the present invention. In addition, the extending direction (Z-axis direction) of the first wire 121 of the fifth composite mesh member 12E in the present embodiment corresponds to an example of the first extending direction in the present invention. The extending direction (X-axis direction) of the second wire 122 of the fifth composite mesh member 12E corresponds to an example of the second extending direction in the present invention.

  On the other hand, the sixth composite mesh member 12F in the present embodiment corresponds to an example of a second opening-side mesh member in the present invention. Further, the extending direction (X-axis direction) of the first wire 121 of the sixth composite mesh member 12F in the present embodiment corresponds to an example of the first extending direction in the present invention, and the sixth in the present embodiment. The extending direction (Z-axis direction) of the second wire 122 of the composite mesh member 12F corresponds to an example of the second extending direction in the present invention.

  Furthermore, the boundary between the fifth composite mesh member 12E and the sixth composite mesh member 12F in the present embodiment corresponds to an example of “an intermediate position in the stacking direction” in the present invention.

  The first laminated body 11A 'is configured by stacking the fifth and sixth composite mesh members 12E and 12F described above. At this time, the fifth and sixth composite mesh members 12E and 12F are stacked so that the meshes 123 overlap in the stacking direction of the composite mesh members 12E and 12F (Y-axis direction in the drawing).

  The first stacked body 11A 'is accommodated in the container 13 so as to be interposed between the second stacked body 11B and the third stacked body 11C. At this time, in the present embodiment, the first wire 121 of the fifth composite mesh member 12E is substantially parallel to the magnetic field application direction (Z-axis direction in the drawing) by the permanent magnet 40, and the first The first laminated body 11A ′ is accommodated in the container 13 so that the second wire rod 122 of the sixth composite mesh member 12F is substantially parallel to the magnetic field application direction. Further, the first laminated body 11A ′ is a container so that the fifth composite mesh member 12E is adjacent to the second laminated body 11B and the sixth composite mesh member 12G is adjacent to the third laminated body 11C. 13.

Note that the first pitch P ₁ and the second pitch P ₂ may not be substantially the same (P ₁ ≠ P ₂ ). In this case, the shape of the mesh 123 of the fifth and sixth mesh members 12E and 12F is a rectangle.

  Further, the first wire 121 of the fifth composite mesh member 12E extends along the Z-axis direction, and the second wire 122 of the sixth composite mesh member 12F extends along the Z-axis direction. If it exists, the 1st extension direction and the 2nd extension direction may not be substantially orthogonal. In this case, the shape of the mesh 123 of the fifth and sixth mesh members 12E and 12F is a rhombus or a parallelogram.

As described above, in the present embodiment, as in the first embodiment, the first single mesh member 12G of the second stacked body 11B located on the first low temperature side pipe 81 side is the first Curie. The second single mesh member 12H of the third laminated body 11C located on the first high temperature side pipe 83 side is composed of the first wire 121 having the point T _C1. It consists of the second wire 122 having the Curie point T _C2 , and the second Curie point T _C2 is relatively higher than the first Curie point T _C1 of the first wire 121 ( T _C2 > T _C1 ). For this reason, even if the temperature gradient which generate | occur | produces in 1st-3rd laminated body 11A ', 11B, 11C of MCM heat exchanger 10' in a steady operation state is wide, a magnetocaloric effect can be acquired efficiently.

  In the present embodiment, similarly to the first embodiment, the first laminated body 11A including the fifth and sixth composite mesh members 12E and 12F in which the first wire 121 and the second wire 122 are mixed. 'Is interposed between the second stacked body 11B and the third stacked body 11C. Thereby, a continuous temperature gradient can be easily generated in the MCM heat exchanger 10 '.

  Furthermore, in this embodiment, the first wire 121 extends from the first opening 131 of the container 13 toward the second opening 132 with respect to the fifth composite mesh member 12E and the sixth composite mesh member 12F. The first extending direction and the second extending direction in which the second wire 122 extends change stepwise. For this reason, the temperature gradient generated in the MCM heat exchanger 10 'can be smoothed.

Specifically, in the fifth composite mesh member 12E, since the longitudinal direction of the first wire 121 is substantially parallel to the magnetic field application direction, the influence of the demagnetizing field on the first wire 121 is reduced. Can be suppressed. Therefore, in the first low temperature side pipe 81 side, it is possible to obtain a magnetocaloric effect of the first wire 121 having a relatively low first Curie point T _C1 effectively.

On the other hand, in the sixth composite mesh member 12F, since the longitudinal direction of the second wire 122 is substantially parallel to the magnetic field application direction, the influence of the demagnetizing field on the second wire 122 is suppressed. can do. For this reason, the magnetocaloric effect of the second wire 122 having the relatively high second Curie point _TC2 can be effectively obtained on the first high temperature side pipe 83 side.

  In the present embodiment, as in the first embodiment, in the mesh members 12E to 12H, the plurality of wires 121 and 122 along the Z-axis direction extend substantially parallel to the magnetic field application direction. ing. For this reason, the demagnetizing field generated in the plurality of wires 121 and 122 along the Z-axis direction is compared with the case where the rod-shaped body is arranged so that the magnetic field application direction is orthogonal to the longitudinal direction of the magnetocaloric effect material. The influence can be reduced, and the magnetocaloric effect can be obtained effectively.

  Further, in the present embodiment, as in the first embodiment, in the first MCM heat exchanger 10 ′, the first and second wire rods 121 and 122 made of a magnetocaloric effect material are woven into the mesh member 12E. Constitutes ~ 12H. Since these mesh members 112E to 12H have a rigidity capable of withstanding the pressure of the liquid medium, the first and second lines due to the pressure of the liquid medium can be obtained even if the first and second wires 121 and 122 are thinned. Deformation and breakage of the wires 121 and 122 can be suppressed.

  In the present embodiment, the intersection angle between the first extending direction and the second extending direction is substantially the same between the fifth composite mesh member 12E and the sixth composite mesh member 12F. Thus, the fifth composite mesh member 12E and the sixth composite mesh member 12F are different from each other only in that the first extending direction and the second extending direction are interchanged. Accordingly, since the same member as the fifth composite mesh member 12E can be rotated by 90 ° as the sixth composite mesh member 12F, the manufacture of the MCM heat exchanger 10 ′ can be facilitated. .

  The embodiment described above is described for facilitating the understanding of the present invention, and is not described for limiting the present invention. Therefore, each element disclosed in the above embodiment is intended to include all design changes and equivalents belonging to the technical scope of the present invention.

  The configuration of the magnetic heat pump device described above is an example, and the heat exchanger according to the present invention may be applied to other magnetic heat pump devices of an AMR (Active Magnetic Refrigerataion) system.

  For example, the number of MCM heat exchangers included in the magnetic heat pump device is not particularly limited. For example, the magnetic heat pump device may include one or three or more MCM heat exchangers.

  Moreover, although the above-mentioned embodiment demonstrated the example which applied the magnetic heat pump apparatus to air conditioners, such as home use or a motor vehicle, it is not specifically limited to this. For example, by selecting an MCM having an appropriate Curie temperature according to the application, the magnetic heat pump device according to the present invention can be applied to an application in a cryogenic temperature region such as a refrigerator or an application in a certain high temperature region. May be.

  Moreover, in this embodiment, although the 1st and 2nd MCM heat exchangers 10 and 20 have the same structure, it is not limited to this in particular, These may have a different structure. For example, in the first and second MCM heat exchangers 10 and 20, mesh members having different specifications may be used, or the number of mesh members stacked may be different.

  In the second embodiment, as in the first embodiment, the fifth composite mesh member 12E and the sixth composite mesh member 12F are closer to the second opening 132 from the first opening 131 of the container 13. The ratio of the number of the first wires 121 and the number of the second wires 122 may be changed stepwise. In this case, the first laminate 11A ′ may be composed of three or more types of composite mesh members.

DESCRIPTION OF SYMBOLS 1 ... Magnetic heat pump apparatus 10 ... 1st MCM heat exchanger 11A-11C ... 1st-3rd laminated body 12A-12F ... 1st-6th composite mesh member 12G, 12H ... 1st, 2nd single One mesh member 121 ... first wire 122 ... second wire 123 ... mesh 124 ... channel 13 ... container 131 ... first opening 132 ... second opening 14 ... accommodating portion 141 bottom 142,143 ... side
144 ... Opening 15 ... Lid 16 ... 1st terminal member 161 ... Connection port 162 ... Connection port 17 ... 2nd terminal member 171 ... Connection port 172 ... Connection port 20 ... 2nd MCM heat exchanger 21A-21C ... 1st-3rd laminated body 23 ... Container 261 ... 1st connection port 271 ... 2nd connection port 30 ... Piston 35 ... Actuator 40 ... Permanent magnet 50 ... Low temperature side heat exchanger 60 ... High temperature side heat exchanger 70 ... Pumps 81-82 ... First to second low temperature side pipes 83-84 ... Third to fourth high temperature side pipes 90 ... Switching valve

Claims (9)

A first laminate configured by laminating a plurality of first mesh members;
A container for accommodating the first laminate,
Each of the first mesh members is configured by weaving a plurality of linear bodies,
The plurality of linear bodies are:
A first linear body composed of a first magnetocaloric material having a first Curie point;
And a second linear body made of a second magnetocaloric material having a second Curie point different from the first Curie point. The heat exchanger according to claim 1,
The container is
A first opening located at one end;
A second opening located at the other end,
A heat exchanger in which a direction from the first opening toward the second opening and a stacking direction of the plurality of first mesh members are substantially parallel. The heat exchanger according to claim 2,
In the plurality of first mesh members, the ratio between the number of the first linear bodies and the number of the second linear bodies gradually increases as the first opening approaches the second opening. A heat exchanger that is configured to change into. The heat exchanger according to claim 2,
The first linear body extends in a first extending direction;
The second linear body extends in a second extending direction intersecting the first extending direction;
The plurality of first mesh members are configured such that the first and second extending directions change stepwise as they approach the second opening from the first opening. vessel. The heat exchanger according to claim 4,
The crossing angle between the first extending direction and the second extending direction is a heat exchanger that is substantially the same among the plurality of first mesh members. The heat exchanger according to claim 4 or 5,
The plurality of first mesh members are:
A first opening-side mesh member disposed on the first opening side of the middle direction in the stacking direction;
A second opening-side mesh member disposed on the second opening side of the intermediate position in the stacking direction,
The first opening-side mesh member is arranged such that the first extending direction is substantially parallel to the magnetic field application direction of the magnetic field applied to the linear body,
The second opening-side mesh member is a heat exchanger arranged such that the second extending direction is substantially parallel to the magnetic field application direction. It is a heat exchanger as described in any one of Claims 2-6,
The heat exchanger is
A second laminate configured by laminating a second mesh member;
A third laminated body configured by laminating a third mesh member,
The second mesh member is formed by weaving a plurality of the first linear bodies,
The third mesh member is configured by weaving a plurality of the second linear bodies,
The second stacked body is accommodated in the container so as to be positioned closer to the first opening than the first stacked body in the stacking direction,
The heat exchanger housed in the container so that the third stacked body is positioned closer to the second opening than the first stacked body in the stacking direction. At least one heat exchanger according to any one of claims 1 to 7;
A magnetic heat pump apparatus comprising: a magnetic field changing unit that applies a magnetic field to the linear body and changes a magnitude of the magnetic field. A magnetic heat pump device according to claim 8,
The magnetic heat pump device is:
First and second external heat exchangers respectively connected to the heat exchanger via piping;
Fluid is supplied from the heat exchanger to the first external heat exchanger or the second external heat exchanger in accordance with a change in the magnitude of the magnetic field applied to the linear body by the magnetic change means. A magnetic heat pump device comprising: a fluid supply means;

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