Laminated structure, and heat exchange-type ventilation device and air purification device using same

Abstract

The laminated structure (6) is configured so that the frame (14) and the heat transfer plate (13) are alternately laminated in the vertical direction. The frame (14) has a pair of opposing first sides (20), an end opening (21) provided at an end of the frame (14) along the first sides (20), a pair of opposing second sides (22), and an upper protrusion (23) and a lower protrusion (24) provided at an end of the frame (14) along the second sides (22). At an end opening (21b) of the second frame (14b), a lower protrusion (24c) of the third frame (14c) is fitted across the second heat transfer plate (13b) adjacent to the upper side of the second frame (14b), and an upper protrusion (23a) of the first frame (14a) is fitted across the first heat transfer plate (13a) adjacent to the lower side of the second frame (14b).

Description

Technical Field

[0001] The present invention relates to a stacked structure in which structures are stacked layer by layer to form mutually orthogonal air passages in every other layer, and a heat exchange type ventilator and an air purifier using the stacked structure. Background Art

[0002] Sometimes, a stacked structure (a structure formed by stacking a rib structure and a partition member) is used as a heat exchange element for use in cold regions, etc., and for heat exchange between an exhaust flow that exhausts indoor air to the outside and a supply flow that supplies outdoor air to the indoor. In this case, in order to improve the sealing performance of the heat exchange element (a sealing function that prevents air flowing in an air flow path from leaking to the outside) to ensure reliability, the following structure is known, for example.

[0003] Fig.12 It is an exploded perspective view showing the structure of a conventional heat exchange element.

[0004] like Fig.12 As shown in the figure, the heat exchange element 101 as a stacked structure is formed by stacking a plurality of heat exchange element monomers 102, and the heat exchange element monomers 102 are composed of functional paper 103 having thermal conductivity and ribs 104. A plurality of ribs 104 are arranged in parallel at a predetermined interval on one surface of the functional paper 103, and the ribs 104 are composed of paper strings 105 and hot-melt resin 106 for bonding the paper strings 105 to the functional paper 103. The ribs 104 generate a gap between a pair of adjacently stacked functional papers 103, and an air flow path 107 is formed.

[0005] In the heat exchange element 101, a structure is adopted in which a plurality of gaps are formed in a stacked manner, and the air supply directions of the air flow paths 107 of the adjacent gaps are orthogonal to each other. Thus, the supply air flow and the exhaust air flow are alternately passed through the air flow paths 107 provided between the stacked plurality of functional papers 103 layer by layer, thereby heat exchange is performed between the supply air flow and the exhaust air flow.

[0006] Prior art literature

[0007] Patent Literature

[0008] Patent Document 1: Japanese Patent Application Laid-Open No. 11-248390 Summary of the invention

[0009] Such a conventional heat exchange element 101 has the following structure: a substantially circular paper rope 105 is coated with a hot melt resin 106 to form a rib 104, and the rib 104 is used to maintain the interval between the functional papers 103. However, in recent years, the maintenance of the heat exchange element when it is installed in a heat exchange type ventilator has received attention, and further improvement of the element strength has been sought. Specifically, by improving the element strength of the heat exchange element, it is sought that even if an external force such as accidentally pressing the surface of the heat exchange element by hand during maintenance is applied, the heat exchange element will not be deformed and the paper rope and the functional paper will not be peeled off.

[0010] The present invention is used to solve the above-mentioned existing problems, and provides a stacked structure and a heat exchange ventilation device and an air purification device using the stacked structure, wherein the stacked structure suppresses the peeling between the rib structure (paper rope) and the partition member (functional paper) at the peripheral portion even when external force is generated on the peripheral surface of the stacked structure, thereby improving the sealing performance.

[0011] The stacked structure involved in the present invention has a plurality of rib structures and a plurality of partition members, and a first air path and a second air path intersecting the first air path are alternately formed layer by layer by alternately stacking each of the plurality of rib structures and each of the plurality of partition members in the up-down direction. The plurality of rib structures respectively have: a pair of first sides facing each other; an end opening portion, which is provided at the end of each of the plurality of rib structures along each of the pair of first sides; a pair of second sides facing each other, which are different from the first sides; and an upper protrusion and a lower protrusion, which are provided at the end of each of the plurality of rib structures along each of the pair of second sides. The plurality of rib structures include: a central rib structure; an upper rib structure, which is adjacent to the central rib structure on the upper side of the central rib structure; and a lower rib structure, which is adjacent to the central rib structure on the lower side of the central rib structure. In the end opening of the central rib structure, the lower protrusion of the upper rib structure is embedded through a partition member among multiple partition members that is adjacent to the central rib structure and located on the upper side, and the upper protrusion of the lower rib structure is embedded through a partition member among multiple partition members that is adjacent to the central rib structure and located on the lower side.

[0012] Furthermore, a heat exchange type ventilator according to the present invention includes the above-mentioned stacked structure as a heat exchange element.

[0013] Furthermore, an air purification device according to the present invention includes the above-mentioned stacked structure as a carbon dioxide separation element.

[0014] According to the present invention, a stacked structure and a heat exchange ventilation device and an air purification device using the stacked structure can be obtained. Even when external force is generated on the outer peripheral surface of the stacked structure, the stacked structure suppresses the peeling between the rib structure and the partition member at the outer peripheral portion, thereby improving the sealing performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram showing a state in which a heat exchange ventilator equipped with a stacked structure according to an embodiment of the present invention is installed in a house.

[0016] Figure 2 It is shown Figure 1 Schematic diagram of the structure of a heat exchange ventilation device.

[0017] Figure 3 It is shown that it is installed on Figure 2 A three-dimensional view of a stacked structure of a heat exchange ventilator.

[0018] Figure 4 It is composed Figure 3 A three-dimensional view of the frame of the stacked structure.

[0019] Figure 5 It is composed Figure 3 A top view and a cross-sectional view of a frame of a stacked structure.

[0020] Figure 6 It is shown Figure 3 A cross-sectional view of the end structure of a stacked structure.

[0021] Figure 7 It is shown Figure 3 An exploded perspective view of an assembling method of a stacked structure.

[0022] Figure 8 It is shown Figure 3 A process diagram of the assembly steps of a stacked structure.

[0023] Fig. 9 It is shown Figure 3 A cross-sectional view of the end structure of a stacked structure.

[0024] Fig.10 It is shown Figure 3 A process diagram of the assembly steps of a stacked structure.

[0025] Fig.11 It is a perspective view showing a stacked structure used as a carbon dioxide separation element.

[0026] Fig.12 This is a perspective view of a conventional heat exchange element. DETAILED DESCRIPTION

[0027] The stacked structure of the present invention comprises a plurality of rib structures and a plurality of partition members, and a first air passage and a second air passage intersecting the first air passage are alternately formed layer by layer by alternately stacking each of the plurality of rib structures and each of the plurality of partition members in the up-down direction. The plurality of rib structures respectively have: a pair of first sides facing each other; an end opening portion provided at an end of each of the plurality of rib structures along each of the pair of first sides; a pair of second sides facing each other and different from the first sides; and an upper protrusion and a lower protrusion provided at an end of each of the plurality of rib structures along each of the pair of second sides. The multiple rib structures include: a central rib structure; an upper rib structure, which is adjacent to the central rib structure on the upper side of the central rib structure; and a lower rib structure, which is adjacent to the central rib structure on the lower side of the central rib structure, and in the end opening of the central rib structure, a lower protrusion of the upper rib structure is embedded through a partition member among the multiple partition members that is adjacent to the central rib structure and located on the upper side, and an upper protrusion of the lower rib structure is embedded through a partition member among the multiple partition members that is adjacent to the central rib structure and located on the lower side.

[0028] According to such a structure, the upper protrusion of the lower rib structure and the lower protrusion of the upper rib structure are embedded in the end opening of the central rib structure, so that each partition member is rolled up by the upper protrusion and the lower protrusion. Therefore, compared with the previous structure in which the spacing retaining member is fixed between the upper and lower partition members, when an external force is generated from one direction on the outer peripheral surface of the stacked structure (especially the spacing retaining member arranged on the periphery), it is not easy to cause the position displacement of the partition member and the rib structure, and the partition member can be protected by the rib structure, so it is not easy to deform. In other words, the strength of the stacked structure can be improved. As a result, a stacked structure can be realized in which the peeling between the partition member and the rib structure can be suppressed at the periphery when an external force is generated on the outer peripheral surface of the stacked structure, thereby improving the sealing performance.

[0029] In addition, in the stacked structure involved in the present invention, it can also be configured that the multiple rib structures each have: an outer peripheral frame, which includes a first side and a second side; and a plurality of spacing members, which are arranged on the inner side of the outer peripheral frame. The outer peripheral frame can be provided with an end opening, an upper protrusion, and a lower protrusion. The multiple spacing members can also be configured to extend along the first side in a manner that a predetermined interval is formed between the adjacent partition members above and the adjacent partition members below among the multiple partition members.

[0030] Thus, for the rib structure, the plurality of spacing members disposed on the inner side of the outer frame makes it less likely for the rib structure to deform when an external force is applied from one direction to the outer peripheral surface of the stacked structure (particularly the spacing members disposed on the outer periphery), compared with a structure without spacing members. In other words, the strength of the stacked structure can be improved.

[0031] In the laminated structure according to the present invention, the upper protrusion of the lower rib structure may be located outside the lower protrusion of the upper rib structure in the end opening of the central rib structure in a plan view.

[0032] In this way, when the upper protrusion and the lower protrusion are fitted in the end opening, the partition member adjacent to the central rib structure and located on the upper side and the partition member adjacent to the central rib structure and located on the lower side are bent at the surface where the upper protrusion and the lower protrusion meet. Therefore, compared with the case where only one of the upper protrusion or the lower protrusion is fitted in the end opening, the bent portion of each partition member can form a double-layer overlapping portion. As a result, the sealing performance of the stacked structure can be further improved.

[0033] In addition, in the stacked structure involved in the present invention, it can also be constructed that the four corners of each of the multiple rib structures respectively have: a convex connection portion, which is arranged on one side of each of the multiple rib structures and protrudes upward or downward from the one side; and a concave connection portion, which is arranged on the other side of each of the multiple rib structures located on the side opposite to the one side, and is embedded with the convex connection portion of the rib structures adjacent to the multiple rib structures respectively.

[0034] In this way, the convex connection part of the rib structure is embedded in the concave connection part of the rib structure adjacent to the rib structure, and the concave connection part of the rib structure is embedded in the convex connection part of another rib structure adjacent to the rib structure, so that the rib structure and the upper and lower rib structures adjacent to the rib structure can be reliably fixed.

[0035] In addition, in the stacked structure involved in the present invention, the first air duct can also be constructed so that the first air duct is an exhaust air duct for the supply and exhaust air flow, and the second air duct is an air supply air duct for the supply and supply air flow, and the multiple partition components are respectively thermally conductive components, and the stacked structure is constructed so that the exhaust flow and the supply air flow can exchange heat across each of the multiple partition components.

[0036] This makes it possible to realize a heat exchange element having improved sealing properties by increasing the strength of the outer peripheral surface.

[0037] In addition, in the stacked structure involved in the present invention, the first air path can also be constructed so that the first air path is an air path for air circulation outside the house, and the second air path is an air path for air circulation inside the house, and the multiple partition components are components that allow carbon dioxide to selectively pass through, and the stacked structure is constructed so that carbon dioxide can pass from the air circulating in the second air path to the air circulating in the first air path via each of the multiple partition components.

[0038] Thereby, it is possible to realize a carbon dioxide separation element having improved sealing properties by increasing the strength of the outer peripheral surface.

[0039] Furthermore, a heat exchange type ventilator according to the present invention includes the above-mentioned stacked structure as a heat exchange element.

[0040] Thus, a heat exchange ventilator that can improve heat exchange efficiency can be realized, and the strength of the outer peripheral surface of the heat exchange element is improved, so the maintainability of the heat exchange ventilator can be improved.

[0041] Furthermore, an air purification device according to the present invention includes the above-mentioned stacked structure as a carbon dioxide separation element.

[0042] Thereby, an air cleaning device with improved sealing performance can be realized.

[0043] Hereinafter, the embodiments of the present invention will be described with reference to the accompanying drawings. It should be noted that the following embodiments are examples for specific implementation of the present invention and do not limit the technical scope of the present invention. The figures described in the embodiments are schematic figures, and the size and thickness ratios of the components in the figures do not necessarily reflect the actual size ratios.

[0044] (Implementation Method)

[0045] First, refer to Figure 1 as well as Figure 2 The outline of the heat exchange ventilator 2 using the stacked structure 6 according to the embodiment of the present invention as a heat exchange element will be described. Figure 1 It is a schematic diagram showing an installation example of a heat exchange ventilator 2 equipped with a stacked structure 6 according to an embodiment of the present invention. Figure 2 It is shown Figure 1 Schematic diagram of the structure of the heat exchange ventilation device 2.

[0046] exist Figure 1 In the embodiment, a heat exchange type ventilator 2 equipped with a stacked structure 6 is installed in a house 1. The heat exchange type ventilator 2 is a device that performs ventilation while exchanging heat between the air inside the house and the air outside the house.

[0047] like Figure 1As shown, as indicated by the black arrow, the exhaust air flow 3 is released to the outside through the heat exchange type ventilator 2. The exhaust air flow 3 is the air flow exhausted from the inside to the outside. In addition, as indicated by the white arrow, the supply air flow 4 is taken into the room through the heat exchange type ventilator 2. The supply air flow 4 is the air flow taken into the room from the outside. For example, in winter in Japan, the exhaust air flow 3 is 20°C to 25°C, while the supply air flow 4 sometimes reaches below freezing. The heat exchange type ventilator 2 performs ventilation, and during the ventilation, the heat of the exhaust air flow 3 is transferred to the supply air flow 4, thereby suppressing the release of unnecessary heat.

[0048] like Figure 2 As shown, heat exchange ventilator 2 includes main body casing 5 , stacked structure 6 functioning as a heat exchange element, exhaust fan 7 , interior air port 8 , exhaust port 9 , supply air fan 10 , exterior air port 11 , and supply air port 12 .

[0049] The main body shell 5 is an outer frame of the heat exchange type ventilator 2. An inner air port 8, an exhaust port 9, an outer air port 11, and a supply air port 12 are formed on the outer periphery of the main body shell 5. The inner air port 8 is a suction port for sucking the exhaust air flow 3 into the heat exchange type ventilator 2. The exhaust port 9 is a discharge port for discharging the exhaust air flow 3 from the heat exchange type ventilator 2 to the outside. The outer air port 11 is a suction port for sucking the supply air flow 4 into the heat exchange type ventilator 2. The supply air port 12 is a discharge port for discharging the supply air flow 4 from the heat exchange type ventilator 2 to the inside of the room.

[0050] A stacked structure 6, an exhaust fan 7, and an air supply fan 10 are installed inside the main body case 5. The stacked structure 6 is used as a heat exchange element and thus functions as a component for performing heat exchange between the exhaust flow 3 and the supply flow 4. The exhaust fan 7 is a blower for sucking the exhaust flow 3 from the inner air port 8 and discharging it from the exhaust port 9. The supply fan 10 is a blower for sucking the supply flow 4 from the outer air port 11 and discharging it from the supply port 12.

[0051] The exhaust air flow 3 sucked from the interior air port 8 by driving the exhaust fan 7 is discharged to the outside from the exhaust port 9 via the stacked structure 6 and the exhaust fan 7. In addition, the supply air flow 4 sucked from the exterior air port 11 by driving the supply air fan 10 is supplied to the inside from the supply air port 12 via the stacked structure 6 and the supply air fan 10.

[0052] Next, refer to Figure 3 The stacked structure 6 used as a heat exchange element mounted on the heat exchange ventilator 2 will be described. Figure 3 It is shown that it is installed on Figure 2 It should be noted that, in the following description, the stacking direction of the stacking structure 6 is described as a vertical up-and-down direction, but this direction does not necessarily mean the direction of the stacking structure 6 when it is mounted on the heat exchange ventilator 2.

[0053] like Figure 3 As shown, the stacked structure 6 is a structure that alternately stacks rectangular frames 14 and rectangular heat transfer plates 13 in the up-down direction to alternately constitute exhaust air paths 16 and supply air paths 17 intersecting the exhaust air paths 16. More specifically, the stacked structure 6 is configured as follows: the heat transfer plates 13 having a substantially square shape (including a square shape) are fitted from both upper and lower surfaces using the ends of the substantially square frame 14, and the heat transfer plates 13 and the frame 14 are repeatedly stacked in an alternating manner.

[0054] When the heat conducting plate 13 is embedded in the frame 14 from the upper and lower surfaces, the frame 14 is orthogonal and stacked in a step-by-step staggered manner. By adopting such a structure, an exhaust air duct 16 for the exhaust air flow 3 and an air supply air duct 17 for the supply air flow 4 are alternately formed, so that the exhaust air flow 3 and the supply air flow 4 flow in their respective air ducts in an orthogonal manner. In this way, heat exchange between the exhaust air duct 16 and the air supply air duct 17 can be achieved. The detailed embedding method and steps of the heat conducting plate 13 and the frame 14 will be described later. It should be noted that the heat conducting plate 13 is equivalent to the "partitioning member" in the technical solution, the frame 14 is equivalent to the "rib structure" in the technical solution, the exhaust air duct 16 is equivalent to the "first air duct" in the technical solution, and the air supply air duct 17 is equivalent to the "second air duct" in the technical solution.

[0055] The heat conducting plate 13 is a plate-shaped component used for heat exchange between the exhaust flow 3 and the supply air flow 4 when the exhaust flow 3 and the supply air flow 4 flow across the heat conducting plate 13. The heat conducting plate 13 is formed of a heat conducting paper based on cellulose fibers, and has thermal conductivity, moisture permeability and hygroscopicity. However, the material of the paper is not limited thereto. The heat conducting plate 13 can use, for example, a moisture permeable resin film based on polyurethane or polyethylene terephthalate, or a paper material based on cellulose fibers, ceramic fibers or glass fibers. As the heat conducting plate 13, a thinner sheet having thermal conductivity can be used, and a material that does not allow gas to pass through can be used. It should be noted that in the present embodiment, the heat conducting plate 13 is fitted by the frame 14 and bent, so it is preferable to use a component having elasticity and strength that can withstand the bending.

[0056] The exhaust air passage 16 is an air passage through which the exhaust airflow 3 flows. More specifically, the exhaust air passage 16 is an air passage portion formed in the stacked structure 6, among the air passages through which the air exhausted from the room flows to the outside.

[0057] The supply air passage 17 is an air passage through which the supply airflow 4 flows. More specifically, the supply air passage 17 is an air passage portion formed in the stacked structure 6, among the air passages through which the air supplied from the outside to the inside flows.

[0058] Next, use Figure 4 as well as Figure 5 The frame 14 constituting the stacked structure 6 will be described. Figure 4 It is composed Figure 3 A three-dimensional view of the frame 14 of the stacked structure 6. Figure 5 It is composed Figure 3 The top view and cross-sectional view of the frame 14 of the stacked structure 6 are shown in FIG. Figure 5 (a) is a top view of the frame 14 viewed from above. Figure 5 (b) is Figure 5 (a) a side view of the frame 14 at the AA section, Figure 5 (c) is Figure 5 (a) is a side view of the frame 14 at the BB section.

[0059] like Figure 4 as well as Figure 5 As shown in (a), the frame 14 is a plate-shaped member that is approximately square (including square). The frame 14 forms an outline of four sides of an approximately square by a pair of first sides 20 that form the mutually opposing sides of the approximately square (including square) and a pair of second sides 22 that are different from the first sides 20 and form the mutually opposing sides of the approximately square. In addition, the frame 14 is composed of an outer peripheral frame body 25 that has the first side 20 and the second side 22 and has an approximately square (including square) outer periphery, and a plurality of ribs 26 provided on the inner side of the outer peripheral frame body 25.

[0060] The frame 14 is preferably made of a material having a certain strength. As the material of the frame 14, for example, a resin member such as polypropylene, polyethylene, polyethylene terephthalate, or ABS (Acrylonitrile Butadiene Styrene), or cellulose fiber, ceramic fiber, or glass fiber, or a metal material such as aluminum or stainless steel can be used. In addition, as a method of forming the frame 14, it is preferable to use a forming method corresponding to the material, such as molding, welding, or cutting.

[0061] like Figure 4 as well as Figure 5 As shown, the outer peripheral frame 25 is provided with an end opening 21, an upper protrusion 23, a lower protrusion 24, a through hole 28, a male connection portion 29 and a female connection portion 30 (see Fig. 9 ). The details of each element will be described later.

[0062] The plurality of ribs 26 are members provided in the stacked structure 6 so as to form a predetermined interval between the heat transfer plates 13 adjacent to each other in the vertical direction. Figure 5As shown in (a) and (b), a plurality of ribs 26 are respectively formed in a straight line from the second side 22 on one side to the second side 22 on the other side between a pair of second sides 22 opposite to the heat conductive plate 13. In the peripheral frame 25, a plurality of ribs 26 are arranged in a manner with a predetermined interval between adjacent ribs 26. In other words, it can also be said that the plurality of ribs 26 have a predetermined interval with each other, and are respectively extended along the first side 20 between the second sides 22. Furthermore, when the heat conductive plates 13 are stacked, the plurality of ribs 26 form a gap between the heat conductive plates 13 for allowing the exhaust flow 3 or the supply flow 4 to pass, that is, the exhaust air duct 16 or the supply air duct 17. It should be noted that the ribs 26 are equivalent to the "interval maintaining member" in the technical solution.

[0063] like Figure 5 As shown in (a), the end opening 21 is a rectangular opening provided at the end (peripheral frame body 25) of the frame 14 along a pair of first sides 20 that are opposite to each other in a rectangular shape. The end opening 21 is provided at each of the pair of first sides 20 of the peripheral frame body 25. Each of the pair of end openings 21 is formed in a slit shape between the second side 22 of one side and the second side 22 of the other side.

[0064] The details will be described later. In the stacked structure 6, the lower protrusion 24 of the frame 14 provided on the upper side and the upper protrusion 23 of the frame 14 provided on the lower side are fitted in the end opening 21. Specifically, the lower protrusion 24 of the frame 14 located on the upper side is fitted in the end opening 21 via the heat conducting plate 13 located on the upper side, and the upper protrusion 23 of the frame 14 located on the lower side is fitted in the end opening 21 via the heat conducting plate 13 located on the lower side. It should be noted that although the end opening 21 is described as a rectangular shape, it may also be a shape with four curved corners.

[0065] like Figure 5 As shown in (a) and (b), the upper protrusion 23 is a columnar member provided at the end (peripheral frame 25) of the frame 14 along a pair of second sides 22 facing each other in a rectangular shape. The upper protrusion 23 fixes the ends of each of the plurality of ribs 26 at the second side 22 of the peripheral frame 25. The upper protrusion 23 is provided at each of the pair of second sides 22 of the peripheral frame 25. It should be noted that the upper protrusion 23 is provided in a manner protruding upward in the vertical direction from the plane (upper surface) formed by the plurality of ribs 26, and is therefore referred to as an "upper protrusion".

[0066] like Figure 5As shown in (a) and (b), the lower protrusion 24 is a columnar member provided at the end (peripheral frame 25) of the frame 14 along a pair of second sides 22 facing each other in a rectangular shape. The lower protrusion 24 fixes the ends of each of the plurality of ribs 26 at the second side 22 of the peripheral frame 25. The lower protrusion 24 is provided at each of the pair of second sides 22 of the peripheral frame 25. It should be noted that the lower protrusion 24 is provided in a manner protruding downward in the vertical direction from the plane (lower surface) formed by the plurality of ribs 26, and is therefore referred to as a "lower protrusion".

[0067] Here, if Figure 5 As shown in (a), when the frame 14 is viewed from above, the lower protrusion 24 is provided at a position closer to the inside than the upper protrusion 23, so that the upper protrusion 23 and the lower protrusion 24 do not overlap each other at each of the pair of second sides 22. It should be noted that the offset between the upper protrusion 23 and the lower protrusion 24 is set in consideration of the thickness of the heat conducting plate 13 sandwiched when they are respectively fitted into the end opening 21. In addition, although the upper protrusion 23 and the lower protrusion 24 are described as columnar, they may also be in a shape with chamfered corners.

[0068] The through holes 28 are used for frame fixing rods 27 (see FIG. 2 ) to be described later when the stacked structure 6 is assembled by alternately stacking the rectangular frames 14 and the rectangular heat transfer plates 13 in the vertical direction. Figure 7 ) through a circular opening. Figure 4 as well as Figure 5 As shown in (a), through holes 28 are provided in the same shape at the four corners (four corners) of the rectangular frame 14. In addition, a cylindrical male connection portion 29 and an annularly recessed female connection portion 30 are provided around the through hole 28 so as to surround the through hole 28 (see Fig. 9 ).

[0069] like Figure 5 As shown, the male connection part 29 is a cylindrical member provided at the four corners (four corners) of the rectangular frame 14. The male connection part 29 is formed in a convex shape from the plane (upper surface) formed by the plurality of ribs 26 to the upper side in the vertical direction so as to surround the through hole 28. The details will be described later. In the stacked structure 6, the male connection part 29 is fitted into the female connection part 30 provided on the upper side of the frame 14. More specifically, the male connection part 29 is fitted into the female connection part 30 of the upper side of the frame 14 via the heat transfer plate 13 located on the upper side.

[0070] The concave connection part 30 is a member that is annularly recessed and is provided at the four corners (four corners) of the rectangular frame 14. The concave connection part 30 is formed in a concave shape from the plane (lower surface) formed by the plurality of ribs 26 to the upper side in the vertical direction so as to surround the through hole 28. The details will be described later. In the stacked structure 6, the convex connection part 29 provided on the lower frame 14 is engaged with the concave connection part 30. More specifically, the convex connection part 29 of the lower frame 14 is engaged with the concave connection part 30 via the heat conduction plate 13 located on the lower side. It should be noted that the size of the concave connection part 30 is set in consideration of the thickness of the heat conduction plate 13 sandwiched when the convex connection part 29 is engaged.

[0071] Next, refer to Figure 6 The stacking state at the end of the stacked structure 6 will be described. Figure 6 It is shown Figure 3 A cross-sectional view of the end structure of the stacked structure 6. Figure 6 (a) is Figure 5 (a) is a side view of the stacked structure 6 (the amount of the three-layer frame 14) at the AA section, Figure 6 (b) is Figure 5 (a) is a side view of the stacked structure 6 (including the three-layer frame 14 ) at the BB cross section.

[0072] It should be noted that, below, for the three-layer frame 14, the first frame 14a, the second frame 14b and the third frame 14c are described from the bottom. In addition, the heat conducting plate 13 located between the first frame 14a and the second frame 14b is set as the first heat conducting plate 13a, and the heat conducting plate 13 located between the second frame 14b and the third frame 14c is set as the second heat conducting plate 13b. In addition, the components constituting the first frame 14a are marked with "a" at the end of the reference numeral, the components constituting the second frame 14b are marked with "b" at the end of the reference numeral, and the components constituting the third frame 14c are marked with "c" at the end of the reference numeral, thereby distinguishing each other from each other. For example, the lower protrusion 24 of the first frame 14a is recorded as the lower protrusion 24a, and the upper protrusion 23 of the third frame 14c is recorded as the upper protrusion 23c. However, although the components are distinguished, they are the same components and there is no difference.

[0073] like Figure 6As shown in (a), in the stacked structure 6, the upper protrusion 23a of the first frame 14a located at the lower side is fitted in the end opening 21b of the second frame 14b via the first heat conducting plate 13a, and the lower protrusion 24c of the third frame 14c located at the upper side is fitted via the second heat conducting plate 13b. It should be noted that the first frame 14a is equivalent to the "lower rib structure" in the technical solution, the second frame 14b is equivalent to the "central rib structure" in the technical solution, and the third frame 14c is equivalent to the "upper rib structure" in the technical solution.

[0074] In more detail, the upper protrusion 23a of the first frame 14a presses the first heat conducting plate 13a into the end opening 21b of the second frame 14b and fits into the end opening 21b of the second frame 14b. On the other hand, the lower protrusion 24c of the third frame 14c presses the second heat conducting plate 13b into the end opening 21b of the second frame 14b and fits into the end opening 21b of the second frame 14b.

[0075] Thus, the first heat conduction plate 13a is sandwiched between the upper surface of the first frame 14a and the lower surface of the second frame 14b, and is fitted in the end opening 21b of the second frame 14b in a manner bent along the shape of the upper protrusion 23a of the first frame 14a.

[0076] On the other hand, the second heat conduction plate 13b is clamped between the upper surface of the second frame 14 and the lower surface of the third frame 14c, and is fitted in the end opening 21b of the second frame 14b in a manner bent along the shape of the lower protrusion 24c of the third frame 14c.

[0077] Furthermore, when the upper protrusion 23a and the first heat conductive plate 13a and the lower protrusion 24c and the second heat conductive plate 13b are fitted into the end opening 21b of the second frame 14b as described above, an exhaust air passage 16b (or an air supply air passage 17b) is formed in the inner area of ​​the outer peripheral frame 25 by the ribs 26b.

[0078] In addition, if Figure 6 As shown in (b) of FIG. 6 , in the stacked structure 6 , the lower protrusion 24 b of the second frame 14 b located on the upper side is fitted into the end opening 21 a of the first frame 14 a via the first heat conducting plate 13 a. Although not particularly shown in the figure, Figure 6 As shown in the end opening 21 b of FIG. 8 (a), the upper protrusion 23 of the other frame 14 located below is fitted into the end opening 21 a of the first frame 14 a via the heat transfer plate 13 .

[0079] On the other hand, the upper protrusion 23b of the second frame 14b located below is fitted into the end opening 21c of the third frame 14c via the second heat conducting plate 13b. Figure 6 As shown in the end opening 21 b of FIG. 8 (a), the lower protrusion 24 of the other frame 14 located on the upper side is fitted into the end opening 21 c of the third frame 14 c via the heat transfer plate 13 .

[0080] Furthermore, when an end structure such as the end opening 21b of the second frame 14b is formed in the end opening 21a of the first frame 14a as described above, the air supply passage 17a (or the exhaust passage 16a) is formed by the rib 26a in the inner area of ​​the outer peripheral frame 25. In addition, when an end structure such as the end opening 21b of the second frame 14b is formed in the end opening 21c of the third frame 14c, the air supply passage 17c (or the exhaust passage 16c) is formed by the rib 26c in the inner area of ​​the outer peripheral frame 25.

[0081] As described above, in the stacked structure 6, the end structure represented by the end opening 21b of the second frame 14b is formed alternately layer by layer on the first side 20 side or the second side 22 side when the second frame 14b is used as a reference. In other words, in the stacked structure 6, the exhaust air duct 16 and the supply air duct 17 are respectively formed alternately layer by layer on the first side 20 side and the second side 22 side when the second frame 14b is used as a reference.

[0082] Next, refer to Figure 7 as well as Figure 8 The method and procedure for assembling the stacked structure 6 will be described. Figure 7 It is shown Figure 3 An exploded perspective view of an assembling method of the stacked structure 6. Figure 8 It is shown Figure 3 It should be noted that in Figure 7 In FIG. 1 , only the first heat conducting plate 13 a and the second heat conducting plate 13 b are shown with outlines. Figure 8 yes Figure 5 The side view of the stacked structure 6 at the AA section and the BB section of (a) shows Figure 6 The assembly steps of the three layers of the first frame 14a to the third frame 14c.

[0083] When assembling the stacked structure 6, Figure 7 As shown in FIG. 1 , four frame fixing rods 27 are prepared so as to be able to pass through the through holes 28 at respective positions of the four corners of the frame 14 .

[0084] The frame fixing rod 27 is a cylindrical device for fixing the outer peripheral frame 25 of the frame 14 and the heat conducting plate 13. The frame fixing rod 27 is used to suppress positional displacement or deformation of the frame 14 when an external force is applied to the corners of the stacked structure 6 during assembly. The cross-sectional shape of the frame fixing rod 27 is preferably circular. In addition, as the frame fixing rod 27, various materials and shapes such as a meltable welding rod or a fully threaded metal rod can be selected according to the fixing method of the stacked structure 6.

[0085] In the method for assembling the stacked structure 6, as Figure 7 As shown, first, the frame fixing rods 27 are respectively passed through the through holes 28 (equivalent to the through holes 28 at the four corners of the first frame 14a) Figure 8 Next, the first heat conducting plate 13a is placed on the upper surface of the first frame 14a. At this time, a hole (opening) such as the through hole 28 may be provided in advance in the portion of the first heat conducting plate 13a corresponding to the frame fixing rod 27 as needed. This is suitable for suppressing the positional deviation of the first heat conducting plate 13a.

[0086] Then, the second frame 14b is placed on the upper surface of the first heat conducting plate 13a. More specifically, in a state where the second frame 14b is rotated 90 degrees relative to the first frame 14a (the ribs 26a of the first frame 14a and the ribs 26b of the second frame 14b are orthogonal), the frame fixing rods 27 are respectively passed through the through holes 28 at the four corners of the second frame 14b, and the second frame 14b (equivalent to the first heat conducting plate 13a) is set in a manner to press the first heat conducting plate 13a. Figure 8 the third process).

[0087] Next, the second heat conducting plate 13b is placed on the upper surface of the second frame 14b. At this time, a hole (opening) such as the through hole 28 may be provided in advance in the portion of the second heat conducting plate 13b corresponding to the frame fixing rod 27 as needed. This is suitable for suppressing the positional deviation of the second heat conducting plate 13b.

[0088] Then, the third frame 14c is placed on the upper surface of the second heat conducting plate 13b. More specifically, the frame fixing rods 27 are passed through the through holes 28 at the four corners of the third frame 14c respectively, while the third frame 14c is rotated 90 degrees relative to the second frame 14b (the ribs 26b of the second frame 14b are orthogonal to the ribs 26c of the third frame 14c), and the third frame 14c (equivalent to the second heat conducting plate 13b) is set in a manner to press the second heat conducting plate 13b. Figure 8 The fifth step).

[0089] Then, the heat conducting plates 13 and the frames 14 are alternately stacked while passing the frame fixing rods 27 through the four corners of the heat conducting plates 13 and the frames 14, thereby forming a heat conducting plate 13 and a frame 14. Figure 3 The stacked structure 6 is shown.

[0090] Next, use Figure 8 The assembly steps of the stacked structure 6 are divided into the first step to the fifth step for specific description.

[0091] Figure 8 The first step shows a state in which the frame fixing rods 27 are inserted into and fitted into the through holes 28 at the four corners of the first frame 14 a .

[0092] Figure 8 The second step shows a situation where the first heat conducting plate 13a is placed on the upper surface of the first frame 14a from the state of the first step, and is inserted into the through holes 28 at the four corners of the second frame 14b and inserted into the middle of the frame fixing rod 27. At this time, the upper protrusion 23a of the first frame 14a at the AA section is located at a position overlapping with the outer peripheral side of the end opening 21a of the second frame 14b in a plan view. The inner peripheral side of the end opening 21a of the first frame 14a at the BB section is located at a position overlapping with the lower protrusion 24b of the second frame 14b in a plan view.

[0093] Figure 8 The AA section of the third step shows a state where the upper protrusion 23a of the first frame 14a bends the first heat transfer plate 13a and presses it into the end opening 21b of the second frame 14b and fits into the end opening 21b of the second frame 14b. Figure 8 The BB section of the third step shows a state in which the lower protrusion 24b of the second frame 14b bends and presses the first heat transfer plate 13a into the end opening 21a of the first frame 14a and fits into the end opening 21a of the first frame 14a.

[0094] As described above, the first heat conductive plate 13a at the AA section is clamped between the upper surface of the first frame 14a and the lower surface of the second frame 14b, and is bent and fitted in the end opening 21b of the second frame 14b along the shape of the upper protrusion 23a of the first frame 14a.

[0095] On the other hand, the lower protrusion 24b of the second frame 14b is in a state where the first heat conducting plate 13a is bent and pressed into the end opening 21a of the first frame 14a and fitted in. That is, the first heat conducting plate 13a at the BB cross section is sandwiched between the upper surface of the first frame 14a and the lower surface of the second frame 14b, and is pushed out and bent by the lower protrusion 24b.

[0096] Figure 8The fourth step shows a situation where the second heat conducting plate 13b is placed on the upper surface of the second frame 14b from the state of the third step, and is respectively passed through the through holes 28 at the four corners of the third frame 14c and embedded in the middle of the frame fixing rod 27. At this time, the end opening 21b of the second frame 14b at the AA section overlaps with the lower protrusion 24c of the third frame 14c at the inner peripheral side in a plan view. The upper protrusion 23b of the second frame 14b at the BB section overlaps with the outer peripheral side of the end opening 21c of the third frame 14c in a plan view.

[0097] Figure 8 The AA section of the fifth step shows a state where the lower protrusion 24c of the third frame 14c bends and presses the second heat transfer plate 13b into the end opening 21b of the second frame 14b and fits into the end opening 21b of the second frame 14b. Figure 8 The BB section of the fifth step shows a state where the upper protrusion 23b of the second frame 14b bends the second heat transfer plate 13b and presses it into the end opening 21c of the third frame 14c to fit in the end opening 21c of the third frame 14c.

[0098] As described above, the second heat conduction plate 13b at the AA section is clamped between the upper surface of the second frame 14b and the lower surface of the third frame 14c, and is bent and fitted in the end opening 21b of the second frame 14b along the shape of the lower protrusion 24c of the third frame 14c.

[0099] On the other hand, the upper protrusion 23b of the second frame 14b is in a state of bending and pressing the second heat conducting plate 13b into and fitting it into the end opening 21c of the third frame 14c. That is, the second heat conducting plate 13b at the BB cross section is sandwiched between the upper surface of the second frame 14b and the lower surface of the third frame 14c, and is in a state of being pushed out and bent by the upper protrusion 23b.

[0100] Then, by repeating the second step to the fifth step, a stacked structure 6 having a desired number of stacked layers is assembled.

[0101] Next, refer to Fig. 9 The fitting state of the male connection portion 29 and the female connection portion 30 in the plurality of frames 14 stacked in the vertical direction will be described. Fig. 9 It is shown Figure 3 A cross-sectional view of the end structure of the stacked structure 6. It should be noted that, Fig. 9 yes Figure 5 (a) is a side view of an end portion of the stacked structure 6 (the amount of the three-layer frame 14) at the CC cross section, with Figure 6For example, the male connection portion 29 of the third frame 14c is referred to as the male connection portion 29c, and the female connection portion 30 of the first frame 14a is referred to as the female connection portion 30a.

[0102] like Fig. 9 As shown, the male connection portion 29a of the first frame 14a is fitted into the female connection portion 30b of the second frame 14b provided on the upper side in the stacked structure 6. More specifically, the male connection portion 29a of the first frame 14a is fitted into the female connection portion 30b of the second frame 14b adjacent to the upper side via the first heat conducting plate 13a adjacent to the upper side. At this time, the first heat conducting plate 13a is bent and fitted along the shapes of the male connection portion 29a and the female connection portion 30b.

[0103] The male connection portion 29b of the second frame 14b is fitted into the female connection portion 30c of the third frame 14c provided on the upper side in the stacked structure 6. More specifically, the male connection portion 29b of the second frame 14b is fitted into the female connection portion 30c of the third frame 14c adjacent on the upper side via the second heat conducting plate 13b adjacent on the upper side. At this time, the second heat conducting plate 13b is bent and fitted along the shapes of the male connection portion 29b and the female connection portion 30c.

[0104] As described above, in the stacked structure 6 , the structure in which the male connection portion 29 of the frame 14 and the female connection portion 30 of the adjacent frame 14 are fitted so as to surround the through hole 28 is formed in a cylindrical shape.

[0105] Next, refer to Fig.10 The procedure for fitting the male connection parts 29 and the female connection parts 30 in the plurality of frames 14 will be described. Fig.10 It is shown Figure 3 FIG. 6 is a process diagram of the assembly steps of the stacked structure 6. It should be noted that Fig.10 Show Fig. 9 The first to fifth steps in the figure correspond to the assembly steps of the three layers of the first frame 14a to the third frame 14c. Figure 8 The first to fifth steps in the process.

[0106] Fig.10 The first step shows a state in which the frame body fixing rods 27 are inserted into and fitted into the through holes 28 at the four corners of the first frame 14 a .

[0107] Fig.10The second step shows a state where the first heat conducting plate 13a is placed on the upper surface of the first frame 14a from the state of the first step, and is inserted into the through holes 28 at the four corners of the second frame 14b and inserted into the middle of the frame fixing rod 27. At this time, the male connection part 29a of the first frame 14a overlaps with the female connection part 30b of the second frame 14b in a plan view.

[0108] Fig.10 The third step shows a state in which the male connection portion 29a of the first frame 14a presses the first heat conducting plate 13a into the female connection portion 30b of the second frame 14b and fits into the female connection portion 30b of the second frame 14b. As described above, the first heat conducting plate 13a is clamped between the upper surface of the first frame 14a and the lower surface of the second frame 14b, and is bent and fitted into the female connection portion 30b of the second frame 14b along the shape of the male connection portion 29a of the first frame 14a.

[0109] Fig.10 The fourth step shows a state where the second heat conducting plate 13b is placed on the upper surface of the second frame 14b from the state of the third step, and the through holes 28 at the four corners of the third frame 14c are respectively passed through and inserted into the middle of the frame fixing rod 27. At this time, the male connection part 29b of the second frame 14b overlaps with the female connection part 30c of the third frame 14c in a plan view.

[0110] Fig.10 The fifth step shows a state in which the male connection portion 29b of the second frame 14b presses the second heat conducting plate 13b into the female connection portion 30c of the third frame 14c and fits into the female connection portion 30c of the third frame 14c. As described above, the second heat conducting plate 13b is clamped between the upper surface of the second frame 14b and the lower surface of the third frame 14c, and is bent and fitted in the female connection portion 30b of the third frame 14c along the shape of the male connection portion 29b of the second frame 14b.

[0111] Then, by repeating the second step to the fifth step, a stacked structure 6 having a desired number of stacked layers is assembled.

[0112] As described above, the heat transfer plates 13 at the four corners of the stacked structure 6 are bent to form steps and fitted in surface contact with the frames 14 , thereby trapping air using the steps, thereby achieving a structure in which air is unlikely to enter through the gaps between the heat transfer plates 13 and the frames 14 .

[0113] As described above, the stacked structure 6 is assembled so that the end structures represented by the end opening 21b of the second frame 14b are alternately formed layer by layer on the first side 20 or the second side 22. In addition, the stacked structure 6 is assembled so that the male connection parts 29 and the female connection parts 30 are fitted layer by layer near the through holes 28 at the four corners of the frame 14.

[0114] As described above, according to the stacked structure 6 and the heat exchange ventilator 2 using the stacked structure 6 as a heat exchange element according to the present embodiment, the following effects can be obtained.

[0115] (1) In the stacked structure 6, rectangular frames 14 and rectangular heat transfer plates 13 are alternately stacked in the vertical direction, so that exhaust air paths 16 and air supply air paths 17 intersecting the exhaust air paths 16 are alternately formed layer by layer. In the stacked structure 6, the frame 14 has an end opening 21 provided at the end of the frame 14 along a first rectangular side 20 facing each other, and an upper protrusion 23 and a lower protrusion 24 provided at the end of the frame 14 along a second rectangular side 22 facing each other that is different from the first side 20. The frame 14 is distinguished as a second frame 14b, a third frame 14c adjacent to the second frame 14b on the upper side of the second frame 14b, and a first frame 14a adjacent to the second frame 14b on the lower side of the second frame 14b. In this case, in the end opening portion 21b of the second frame 14b, the lower protrusion 24c of the third frame 14c is embedded via the second heat conducting plate 13b adjacent to the second frame 14b and located on the upper side, and the upper protrusion 23a of the first frame 14a is embedded via the first heat conducting plate 13a adjacent to the second frame 14b and located on the lower side.

[0116] According to such a structure, the upper protrusion 23a of the first frame 14a and the lower protrusion 24c of the third frame 14c are fitted into the end opening 21b of the second frame 14b, so that each heat conduction plate 13 (the first heat conduction plate 13a and the second heat conduction plate 13b) is rolled up by the upper protrusion 23 and the lower protrusion 24. Therefore, compared with the conventional structure in which the rib 26 is fixed between the upper and lower heat conduction plates 13, when an external force is generated from one direction on the outer peripheral surface of the stacked structure 6 (especially the rib 26 arranged on the outer periphery), it is not easy to cause the positional deviation of the heat conduction plate 13 and the frame 14, and the heat conduction plate 13 can be protected by the frame 14, so it is not easy to deform. In other words, the strength of the stacked structure 6 can be improved. Therefore, when an external force is generated on the outer peripheral surface of the stacked structure 6, it is possible to realize a stacked structure 6 that can suppress the peeling between the heat conduction plate 13 and the frame 14 at the outer periphery to improve the sealing performance.

[0117] (2) In the stacked structure 6, the upper protrusion 23a of the first frame 14a and the lower protrusion 24c of the third frame 14c are fitted into the end opening 21b of the second frame 14b, and each heat conduction plate 13 (the first heat conduction plate 13a and the second heat conduction plate 13b) is rolled up by the upper protrusion 23 and the lower protrusion 24. As a result, the heat conduction plate 13 is firmly fixed to the outer peripheral frame 25 of the frame 14 by the three frames 14, so it is not necessary to fix the heat conduction plate 13 and the rib 26 with an adhesive or the like. In other words, the stacked structure 6 can be formed even with a combination of components that are difficult to fix with an adhesive.

[0118] (3) In the stacked structure 6, the frame 14 is configured to have a rectangular outer frame 25 and a plurality of ribs 26 provided inside the outer frame 25. The outer frame 25 is provided with an end opening 21, an upper protrusion 23, and a lower protrusion 24. The plurality of ribs 26 are configured to extend along the first side 20 in a manner that forms a predetermined interval between the heat conducting plates 13 adjacent in the vertical direction. Thus, for the frame 14, the plurality of ribs 26 provided inside the outer frame 25 make it less likely to deform when an external force is applied to the outer peripheral surface of the stacked structure 6 (particularly the ribs 26 arranged on the periphery) from one direction, compared with a structure in which the ribs 26 are not provided. In other words, the strength of the stacked structure 6 can be improved.

[0119] (4) In the stacked structure 6, the upper protrusion 23a of the first frame 14a is located outside the lower protrusion 24c of the third frame 14c in the end opening 21b of the second frame 14b. As a result, when the upper protrusion 23 and the lower protrusion 24 are fitted in the end opening 21, the second heat conducting plate 13b adjacent to the second frame 14b and located on the upper side and the first heat conducting plate 13a adjacent to the second frame 14b and located on the lower side are bent at the surface where the upper protrusion 23 and the lower protrusion 24 are in contact. Therefore, compared with the case where only one of the upper protrusion 23 or the lower protrusion 24 is fitted in the end opening 21, the bent portion of each heat conducting plate 13 (the first heat conducting plate 13a and the second heat conducting plate 13b) can form a double-layer overlapping portion. As a result, the sealing performance of the stacked structure 6 can be further improved.

[0120] (5) In the stacked structure 6, the following structure is adopted: the four corners of the second frame 14b are respectively provided with: a male connection part 29b, which is provided on the upper surface of the second frame 14b and protrudes from the upper surface in the direction of the upper side; and a female connection part 30b, which is provided on the lower surface located on the side opposite to the upper surface and is provided for the male connection part 29a of the first frame 14a adjacent to the second frame 14b to be engaged. As a result, the male connection part 29b of the second frame 14b is engaged with the female connection part 30c of the third frame 14c adjacent to the upper side of the second frame 14b, and the female connection part 30b of the second frame 14b is engaged with the male connection part 29a of the first frame 14a adjacent to the lower side of the second frame 14b. Therefore, the second frame 14b and the upper and lower frames 14 (the first frame 14a and the third frame 14c) adjacent to the second frame 14b can be reliably fixed.

[0121] (6) In the stacked structure 6, one of the mutually intersecting air passages is used as the exhaust air passage 16 through which the supply and exhaust airflow 3 flows, the other of the mutually intersecting air passages is used as the supply air passage 17 through which the supply and supply airflow 4 flows, the heat transfer plate 13 is used as a member having thermal conductivity, and the stacked structure 6 is used as a heat exchange element through which the supply and exhaust airflow 3 and the supply and supply airflow 4 exchange heat via the heat transfer plate 13. Thus, a heat exchange element with improved sealing performance can be realized by improving the strength at the outer peripheral surface.

[0122] (7) A structure is adopted in which the stacked structure 6 is mounted as a heat exchange element on the heat exchange ventilator 2. This can realize a heat exchange ventilator 2 that can improve the heat exchange efficiency, and the strength of the outer peripheral surface of the heat exchange element is improved, so that the maintainability of the heat exchange ventilator 2 can be improved.

[0123] (Variation)

[0124] Next, refer to Fig.11 , a case where the stacked structure 6a is used as a carbon dioxide separation element for selectively separating carbon dioxide from circulating air will be described as a modified example. Fig.11 It is a perspective view showing a stacked structure 6a used as a carbon dioxide separation element.

[0125] In the stacked structure 6a involved in the modification, the following points are different from the structure of the embodiment: the "exhaust air passage 16 for the supply and exhaust airflow 3 to flow" is replaced by the "external air passage 36 for the external airflow 3a to flow", the "supply air passage 17 for the supply and supply airflow 4 to flow" is replaced by the "inner air passage 37 for the internal airflow 4a to flow", and the "heat transfer plate 13" is replaced by the "carbon dioxide separation membrane 33". The structure of the stacked structure 6a other than this is the same as the stacked structure 6 involved in the embodiment. Hereinafter, the re-explanation of the contents already explained in the embodiment will be appropriately omitted, and the points different from the embodiment will be mainly explained.

[0126] like Fig.11 As shown, the stacked structure 6a is a structure in which rectangular frames 14 and rectangular carbon dioxide separation membranes 33 are alternately stacked in the up-down direction to alternately form an outside air passage 36 and an inside air passage 37 intersecting the outside air passage 36 layer by layer.

[0127] More specifically, the stacked structure 6 a is formed by repeatedly stacking the carbon dioxide separation membranes 33 and the frames 14 by fitting the substantially square (including square) carbon dioxide separation membranes 33 to the ends of the substantially square (including square) frames 14 from both upper and lower surfaces.

[0128] When the carbon dioxide separation membrane 33 is embedded from the upper and lower surfaces using the frame 14, the frame 14 is orthogonally stacked in a staggered manner. By adopting such a structure, an external air path 36 for the external air flow 3a to pass through and an internal air path 37 for the internal air flow 4a to pass through are alternately formed, and the external air flow 3a and the internal air flow 4a flow in these air paths in an orthogonal manner alternately layer by layer, so that carbon dioxide can be selectively permeated from the internal air flow 4a to the external air flow 3a and separated.

[0129] The fitting state and fitting method of the carbon dioxide separation membrane 33 and the frame 14 are the same as those in the embodiment, so the description is omitted. It should be noted that the carbon dioxide separation membrane 33 is equivalent to the "partitioning member" in the technical solution, the external air passage 36 is equivalent to the "first air passage" in the technical solution, and the internal air passage 37 is equivalent to the "second air passage" in the technical solution.

[0130] The outside air passage 36 is a passage for outdoor air to flow. More specifically, the outside air passage 36 is a passage portion formed in the stacked structure 6a, of the passage for air (external air) taken in from outside, flowing through the carbon dioxide separation element, and exhausted to the outside.

[0131] The indoor air passage 37 is a passage for indoor air to flow. More specifically, the indoor air passage 37 is a passage portion formed in the stacked structure 6a, of the passage for air (inside air) taken in from indoors, flowing through the carbon dioxide separation element, and released indoors.

[0132] The outside air flow 3a is an air flow that is taken in from the outside, flows through the carbon dioxide separation element, and is exhausted to the outside.

[0133] The indoor air flow 4a is an air flow that is taken in from the room, flows through the carbon dioxide separation element, and is released into the room. The indoor air flow 4a can also be called a circulating air flow.

[0134] The carbon dioxide separation membrane 33 is a member that selectively permeates and separates carbon dioxide from the inner airflow 4a toward the outer airflow 3a when the outer airflow 3a and the inner airflow 4a flow through the carbon dioxide separation membrane 33. As the carbon dioxide separation membrane 33, for example, a membrane containing a carbon dioxide carrier that selectively reacts with carbon dioxide is used. Such a carbon dioxide separation membrane 33 functions as a carbon dioxide-facilitated transport membrane that selectively permeates carbon dioxide by the reaction between carbon dioxide and the carbon dioxide carrier.

[0135] It should be noted that the carbon dioxide separation membrane 33 can be any membrane material commonly used as a carbon dioxide-facilitated transport membrane, so detailed description is omitted. However, since it is fitted into the frame 14 and bent, it is preferably used with elasticity and strength that can withstand the bending.

[0136] In the stacking structure 6a involved in the modified example, the following structure is adopted, similarly to the stacking structure 6: the end structure represented by the end opening portion 21b of the second frame 14b is formed alternately layer by layer on the first side 20 or the second side 22 with the second frame 14b as a reference, and at the four corners of the frame 14, near the through hole 28, the convex connection portion 29 and the concave connection portion 30 are interlocked layer by layer.

[0137] If the stacked structure 6a involved in the modification is used as a carbon dioxide separation element, carbon dioxide can be selectively permeated and separated from the internal airflow 4a circulating inside the element to the external airflow 3a, thereby removing carbon dioxide from the internal airflow 4a. If an air purification device having the stacked structure 6a as a carbon dioxide separation element is constructed, the indoor space can be cleaned.

[0138] As described above, according to the stacked structure 6a according to the modification example, the following effects can be obtained.

[0139] (1a) In the stacked structure 6a, rectangular frames 14 and rectangular carbon dioxide separation membranes 33 are alternately stacked in the up-down direction, so that an external air passage 36 and an internal air passage 37 intersecting the external air passage 36 are alternately formed layer by layer. In the stacked structure 6a, the frame 14 has an end opening 21 provided at the end of the frame 14 along a first rectangular side 20 facing each other, and an upper protrusion 23 and a lower protrusion 24 provided at the end of the frame 14 along a second rectangular side 22 facing each other that is different from the first side 20. The frame 14 is distinguished as a second frame 14b, a third frame 14c adjacent to the upper side of the second frame 14b, and a first frame 14a adjacent to the lower side of the second frame 14b. In this case, in the end opening portion 21b of the second frame 14b, the lower protrusion 24c of the third frame 14c is embedded via the second heat conducting plate 13b adjacent to the second frame 14b and located on the upper side, and the upper protrusion 23a of the first frame 14a is embedded via the first heat conducting plate 13a adjacent to the second frame 14b and located on the lower side.

[0140] According to such a structure, the upper protrusion 23a of the first frame 14a and the lower protrusion 24c of the third frame 14c are fitted into the end opening 21b of the second frame 14b, so that each carbon dioxide separation membrane 33 is rolled up by the upper protrusion 23 and the lower protrusion 24. Therefore, compared with the case where the rib 26 is fixed between the upper and lower carbon dioxide separation membranes 33, when an external force is generated on the outer peripheral surface of the stacked structure 6a (especially the rib 26 arranged on the outer periphery) from one direction, the positional displacement of the carbon dioxide separation membrane 33 and the frame 14 is not easy to occur, and the carbon dioxide separation membrane 33 can be protected by the frame 14, so it is not easy to deform. In other words, the strength of the stacked structure 6a can be improved. Therefore, when an external force is generated on the outer peripheral surface of the stacked structure 6a, the stacked structure 6a can be realized, which can suppress the peeling between the carbon dioxide separation membrane 33 and the frame 14 at the outer periphery and improve the sealing performance.

[0141] (2a) In the stacked structure 6a, the upper protrusion 23a of the first frame 14a and the lower protrusion 24c of the third frame 14c are fitted into the end opening 21b of the second frame 14b, and each carbon dioxide separation membrane 33 is wrapped around the upper protrusion 23 and the lower protrusion 24.

[0142] Thus, the carbon dioxide separation membrane 33 is firmly fixed to the outer peripheral frame 25 of the frame 14 by the three frames 14, so it is not necessary to use an adhesive or the like to fix the carbon dioxide separation membrane 33 and the ribs 26. In other words, even a combination of components that are difficult to fix the carbon dioxide separation membrane 33 and the ribs 26 using an adhesive can form the stacked structure 6a.

[0143] (3a) In the stacked structure 6a, one of the mutually intersecting air passages is used as an outside air passage 36 through which the outside air flow 3a flows, and the other of the mutually intersecting air passages is used as an inside air passage 37 through which the inside air flow 4a flows, and the carbon dioxide separation membrane 33 is used as a member that selectively allows carbon dioxide to pass through. The stacked structure 6a is used as a carbon dioxide separation element that allows carbon dioxide to pass from the air (the inside air flow 4a) flowing through the inside air passage 37 to the air (the outside air flow 3a) flowing through the outside air passage 36 via the carbon dioxide separation membrane 33.

[0144] Thus, it is possible to realize a carbon dioxide separation element having improved sealing properties by increasing the strength of the outer peripheral surface.

[0145] As mentioned above, although the present invention has been described based on the embodiment and the modified example, the present invention is not limited to the above-mentioned embodiment and the modified example at all, and it can be easily estimated that various improvements and modifications can be made without departing from the scope of the present invention.

[0146] For example, in the laminated structure 6 according to the present embodiment, the male connection portion 29 is formed on the same side as the upper protrusion 23. The present invention is not limited thereto, and for example, the male connection portion 29 may be formed on the same side as the lower protrusion 24 on the opposite side.

[0147] Specifically, the convex connection portion 29 may be formed into a convex shape from the plane formed by the plurality of ribs 26 to the lower side in the vertical direction, and the concave connection portion 30 for the convex connection portion 29 of the adjacent frame 14 to be engaged may be formed into a concave shape from the plane formed by the plurality of ribs 26 to the lower side in the vertical direction.

[0148] In other words, the four corners of the frame 14 can be respectively provided with a male connection portion 29 which is provided on one side of the frame 14 and protrudes upward or downward from the one side, and a female connection portion 30 which is provided on the other side opposite to the one side and is engaged with the male connection portion 29 of the frame 14 adjacent to the frame 14.

[0149] Thus, the convex connection portion 29 of the frame 14 is engaged with the concave connection portion 30 of the frame 14 adjacent to the frame 14, and the concave connection portion 30 of the frame 14 is engaged with the convex connection portion 29 of another frame 14 adjacent to the frame 14, so that the frame 14 and the upper and lower frames 14 adjacent to the frame 14 can be reliably fixed.

[0150] In the stacked structure 6 according to the present invention, the upper protrusion 23a of the first frame 14a is located outside the lower protrusion 24c of the third frame 14c in the end opening 21b of the second frame 14b, but the present invention is not limited thereto.

[0151] For example, a configuration may be adopted in which the upper protrusion 23a of the first frame 14a is located inside the end opening 21 of the second frame 14b more inner than the lower protrusion 24c of the third frame 14c.

[0152] In addition, in the stacked structure 6 involved in the present invention, on the second side 22 of the frame 14, the position of the upper protrusion 23 is located at a position farther outside than the position of the lower protrusion 24, but the positional relationship between the inner and outer sides of the upper protrusion 23 and the lower protrusion 24 can also be reversed, and the effect is the same.

[0153] In addition, in the stacked structure 6 involved in the present invention, the left side portion of the end opening 21 of the frame 14 located at the bottom layer (the portion in which the upper protrusion 23 should be fitted) and the right side portion of the end opening 21 of the frame 14 located at the top layer (the portion in which the lower protrusion 24 should be fitted) become hollow, but in actual use, by respectively providing them with covers with convex portions that fill the hollow portions of the stacked structure 6, all the end openings 21 become in the same state as the fitted state.

[0154] Industrial Applicability

[0155] As described above, the stacked structure according to the present embodiment can suppress the peeling between the rib structure and the partition member at the outer periphery when an external force is generated on the outer periphery of the stacked structure, thereby improving the sealing performance. Therefore, it is useful as a heat exchange element used in a heat exchange ventilator or the like, or a carbon dioxide separation element used in an air purifier or the like.

[0156] Description of Reference Numerals

[0157] 1: house, 2: heat exchange ventilation device, 3: exhaust air flow, 3a: external air flow, 4: supply air flow, 4a: internal air flow, 5: main body shell, 6: stacked structure, 6a: stacked structure, 7: exhaust fan, 8: internal air port, 9: exhaust port, 10: supply air fan, 11: external air port, 12: supply air port, 13: heat conduction plate, 13a: first heat conduction plate, 13b: second heat conduction plate, 14: frame, 14a: 1st frame, 14b: 2nd frame, 14c: 3rd frame, 16: exhaust air passage, 16a: exhaust air passage, 16b: exhaust air passage, 16c: exhaust air passage, 17: supply air passage, 17a: supply air passage, 17b: supply air passage, 17c: supply air passage, 20: 1st side, 21: end opening, 21a: end opening, 21b: end opening, 21c: end opening, 22: 3rd side, 23: 4th side, 24: 5th side, 25: 6th side, 26: 7th side, 27: 8th side, 28: 9th side, 30: 10th side, 31: 11th side, 32: 12th side, 33: 13th side, 34: 14th side, 35: 15th side Two sides, 23: upper protrusion, 23a: upper protrusion, 23b: upper protrusion, 23c: upper protrusion, 24: lower protrusion, 24a: lower protrusion, 24b: lower protrusion, 24c: lower protrusion, 25: outer peripheral frame, 26: rib, 26a: rib, 26b: rib, 26c: rib, 27: frame fixing rod, 28: through hole, 29: convex connection, 29a: convex connection Part, 29b: convex connection part, 29c: convex connection part, 30: concave connection part, 30a: concave connection part, 30b: concave connection part, 30c: concave connection part, 33: carbon dioxide separation membrane, 36: external air flow path, 37: internal air flow path, 101: heat exchange element, 102: heat exchange element monomer, 103: functional paper, 104: rib, 105: paper rope, 106: hot melt resin, 107: air flow path.

Claims

1. A stacked structure comprising a plurality of rib structures and a plurality of partition members, wherein a first air passage and a second air passage intersecting the first air passage are alternately formed layer by layer by alternately stacking each of the plurality of rib structures and each of the plurality of partition members in the up-down direction, wherein: The plurality of rib structures respectively have: a pair of first sides facing each other; an end opening portion provided at an end portion of each of the plurality of rib structures along each of the pair of first sides; a pair of second sides opposite to each other and different from the first sides; as well as an upper protrusion and a lower protrusion provided at respective ends of the plurality of rib structures along each of the pair of the second sides, The plurality of rib structures include: a central rib structure; an upper rib structure adjacent to the central rib structure on the upper side of the central rib structure; and a lower rib structure adjacent to the central rib structure on the lower side of the central rib structure. In the end opening of the central rib structure, the lower protrusion of the upper rib structure is embedded through a partition member among the plurality of partition members that is adjacent to the central rib structure and located on the upper side, and the upper protrusion of the lower rib structure is embedded through a partition member among the plurality of partition members that is adjacent to the central rib structure and located on the lower side.

2. The laminated structure according to claim 1, wherein The plurality of rib structures respectively include: an outer peripheral frame including the first side and the second side; and a plurality of spacing members disposed inside the outer peripheral frame. The outer peripheral frame is provided with the end opening, the upper protrusion and the lower protrusion. The plurality of spacing members extend along the first side so that a predetermined interval is formed between partition members adjacent to each other above among the plurality of partition members and partition members adjacent to each other below among the plurality of partition members.

3. The laminated structure according to claim 1, wherein The upper protrusion of the lower rib structure is located outside the lower protrusion of the upper rib structure in the end opening of the central rib structure in a plan view.

4. The laminated structure according to claim 1, wherein The four corners of each of the plurality of rib structures respectively have: a convex connection portion, which is provided on one side of each of the plurality of rib structures and protrudes upward or downward from the one side; as well as The concave connection portion is provided on the other surface of each of the plurality of rib structures, which is located on the side opposite to the one surface, and is fitted with the convex connection portion of a rib structure adjacent to each of the plurality of rib structures.

5. The laminated structure according to any one of claims 1 to 4, wherein The first air passage is an exhaust air passage for exhaust air to flow through. The second air passage is an air supply passage for the flow of supply air. The plurality of partition members are thermally conductive members, The stacked structure is configured so that the exhaust flow and the supply flow can exchange heat with each other via each of the plurality of partition members.

6. The laminated structure according to any one of claims 1 to 4, wherein The first air passage is a passage for outdoor air circulation. The second air passage is a passage for indoor air circulation. The plurality of partition members are members that selectively allow carbon dioxide to permeate. The stacked structure is configured to allow the carbon dioxide to permeate from the air flowing through the second air passage to the air flowing through the first air passage via each of the plurality of partition members.

7. A heat exchange ventilation device, wherein: The heat exchange type ventilator comprises the stacked structure according to any one of claims 1 to 5 as a heat exchange element.

8. An air purification device, wherein: The air purification device includes the stacked structure according to any one of claims 1 to 4 and 6 as a carbon dioxide separation element.

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