Heat exchange element, total heat exchange core assembly, and air handling device

Abstract

A heat exchange element, a total heat exchange core assembly, and an air handling device, which facilitate simplifying the structures of heat exchange elements, reducing the difficulty in manufacturing heat exchange elements, and ensuring the heat exchange performance of heat exchange elements. The heat exchange element of the present invention comprises a heat exchange sheet and a frame, wherein the frame is arranged on one side in the thickness direction of the heat exchange sheet and comprises separation ribs, the separation ribs extend in a first direction to separate adjacent airflow channels, and a plurality of separation ribs are arranged in a second direction intersecting the first direction; the thickness of the separation ribs in the thickness direction of the heat exchange sheet is set to be a, the spacing between adjacent separation ribs is set to be b, and when the length of a portion of the heat exchange sheet located between the adjacent separation ribs after maximum plastic deformation is set to be c, the following relationship is met: (1), wherein 5 mm≤b≤15 mm.

Description

Heat exchange element, total heat exchange core assembly, and air handling device

[0001] The present application relates to a heat exchange element, a total heat exchange core assembly including the heat exchange element, and an air handling device including the total heat exchange core assembly.

[0002] In the past, there has been a heat exchange element including a partition member and a spacing maintaining member, the partition member being in a sheet shape, the spacing maintaining member being integrally formed with the partition member, for maintaining the partition member at a prescribed spacing, and having a spacing rib and a flexion suppressing rib on both sides in a thickness direction of the partition member.

[0003] In the above heat exchange element, since the spacing maintaining member has the spacing rib and the flexion suppressing rib on both sides in the thickness direction of the partition member, it is possible to suppress a decrease in heat exchange efficiency due to deformation of the partition member. However, when the spacing maintaining member is integrally formed with the spacing rib and the flexion suppressing rib on both sides in the thickness direction of the partition member, the structure becomes complicated, the degree of difficulty in processing increases, and the heat exchange performance of the heat exchange element is easily affected.

[0004] The present application has been achieved in view of the above problems, and has an object to provide a heat exchange element, a total heat exchange core assembly including the heat exchange element, and an air handling device including the total heat exchange core assembly, which are helpful to simplify the structure of the heat exchange element, reduce the degree of difficulty in manufacturing the heat exchange element, and ensure the heat exchange performance of the heat exchange element.

[0005] To achieve the above object, the present application provides a heat exchange element including a heat exchange sheet and a frame, wherein the frame is provided on one side in a thickness direction of the heat exchange sheet, and includes a partition rib, the partition rib extending in a first direction, partitioning adjacent airflow passages, and being arranged in a plurality of rows in a second direction intersecting the first direction, a thickness of the partition rib in the thickness direction of the heat exchange sheet is a, a pitch of adjacent partition ribs is b, and a length of a portion of the heat exchange sheet between the adjacent partition ribs after maximum plastic deformation is c, and the following relationship is satisfied: c ≤ where 5 mm ≤ b ≤ 15 mm.

[0006] Here, the "maximum plastic deformation" means the maximum amplitude deformation in the thickness direction of the heat exchange sheet without causing damage to the heat exchange sheet, and without affecting the function of the heat exchange sheet (functional layer).

[0007] According to the heat exchange element of the present application, the frame is arranged on one side in the thickness direction of the heat exchange sheet and comprises partition ribs extending in a first direction to partition adjacent air flow channels and arranged in a second direction crossing the first direction to form a plurality of ribs, thus helping to simplify the structure of the heat exchange element and the manufacturing process and thus to improve the yield when compared with the case where the frame is formed to have portions on both sides in the thickness direction of the heat exchange sheet; and when the thickness of the partition ribs in the thickness direction of the heat exchange sheet is a, the pitch of adjacent partition ribs is b, and the length of the portion of the heat exchange sheet between adjacent partition ribs after maximum plastic deformation is c, the following relationship is satisfied: c≤ , wherein 5mm≤b≤15mm, thus preventing the heat exchange sheets of the upper heat exchange element from contacting the heat exchange sheets of the lower heat exchange element after deformation to cause a significant reduction in the heat exchange area and preventing the partition ribs from being too dense to cause a significant reduction in the heat exchange area, thus ensuring the heat exchange performance and further inhibiting the heat exchange sheets from being repeatedly and greatly deformed to cause a reduction in the service life.

[0008] In addition, in the heat exchange element of the present application, it is preferable that the speed of the air flow flowing through the air flow channels be V, and the following relationship be satisfied: V≤3m / s.

[0009] In addition, in the heat exchange element of the present application, it is preferable that the pressure difference formed by the air flows flowing on both sides in the thickness direction of the heat exchange sheet be ΔPs, and the following relationship be satisfied: 120Pa≤ΔPs≤200Pa.

[0010] In addition, in the heat exchange element of the present application, it is preferable that the heat exchange sheet comprise a base material layer and a functional layer, the base material layer being closer to one side in the thickness direction of the heat exchange sheet than the functional layer, and the partition ribs being attached to the surface of the base material layer side of the heat exchange sheet.

[0011] According to the heat exchange element of the present application, the heat exchange sheet comprises a base material layer and a functional layer, the base material layer being closer to one side in the thickness direction of the heat exchange sheet than the functional layer, and the partition ribs being attached to the surface of the base material layer side of the heat exchange sheet, thus ensuring the strength of the heat exchange sheet and avoiding damage to the functional layer.

[0012] In addition, in the heat exchange element of the present application, it is preferable that the frame further comprise reinforcing ribs extending in a second direction crossing the first direction and connected to the partition ribs, the thickness of the reinforcing ribs in the thickness direction of the heat exchange sheet being less than twice the thickness of the partition ribs.

[0013] According to the heat exchange element of the present application, the frame further includes a reinforcing rib extending in a second direction crossing the first direction and connected to the partition rib, and the thickness of the reinforcing rib is less than one-half of the thickness of the partition rib in the thickness direction of the heat exchange fin, so that the reinforcing rib can be prevented from causing resistance to the air flow in the air flow passage while the supporting strength of the frame to the heat exchange fin is improved to prevent the heat exchange fin from being deformed and to ensure the air flow passage, thereby ensuring the heat exchange performance of the heat exchange element.

[0014] In addition, in the heat exchange element of the present application, it is preferable that the reinforcing rib has a size in the first direction larger than a size in the second direction of the partition rib.

[0015] According to the heat exchange element of the present application, the reinforcing rib has a size in the first direction larger than a size in the second direction of the partition rib, so that the injection of the glue is facilitated when the frame is formed by injection molding, and at the same time, the supporting strength of the frame to the heat exchange fin can be further improved.

[0016] In addition, in the heat exchange element of the present application, it is preferable that the reinforcing rib is provided with one or a plurality of reinforcing ribs in the first direction.

[0017] According to the heat exchange element of the present application, when the reinforcing rib is provided with a plurality of reinforcing ribs in the first direction, the supporting strength of the frame to the heat exchange fin can be further improved, and the breakage of the heat exchange fin can be reduced.

[0018] In addition, in the heat exchange element of the present application, it is preferable that the partition rib is provided with a plurality of partition ribs in the second direction, and the reinforcing rib includes at least one of a first reinforcing rib continuously formed in the second direction and connecting adjacent partition ribs to each other and a second reinforcing rib intermittently formed in the second direction and connecting adjacent partition ribs to each other.

[0019] According to the heat exchange element of the present application, the partition rib is provided with a plurality of partition ribs in the second direction, and the reinforcing rib includes at least one of a first reinforcing rib continuously formed in the second direction and connecting adjacent partition ribs to each other and a second reinforcing rib intermittently formed in the second direction and connecting adjacent partition ribs to each other, so that the supporting strength of the frame to the heat exchange fin can be improved, and in particular, when the second reinforcing rib is included, the resistance of the reinforcing rib to the air flow in the air flow passage can be prevented.

[0020] In addition, in the heat exchange element of the present application, it is preferable that the second reinforcing rib includes a plurality of segments arranged in the second direction, and among the plurality of segments, a segment in the center of the second direction is longer than segments on both sides of the second direction.

[0021] According to the heat exchange element of the present application, the second reinforcing rib includes a plurality of segments arranged in the second direction, and a central segment in the second direction is longer than segments on both sides of the second direction, so that the support strength of the frame portion in the center of the second direction to the heat exchange fin can be improved, and thus, even if the air flow in the air flow passage in the center of the second direction has a large speed, the heat exchange fin is more likely to deform, the deformation of the heat exchange fin can be inhibited.

[0022] Further, in the heat exchange element of the present application, it is preferable that the width of the reinforcing rib in the first direction be d, and the following relationship be satisfied: d≤5 mm.

[0023] According to the heat exchange element of the present application, the width of the reinforcing rib in the first direction is d, and the following relationship is satisfied: d≤5 mm, so that the reinforcing rib can be prevented from being too thick to block the air flow and have a high pressure loss.

[0024] Further, in the heat exchange element of the present application, it is preferable that the frame include a frame body, the partitioning ribs and the reinforcing ribs be provided inside the frame body, and the frame body have a pair of edge portions opposite in the second direction, at least one of the pair of edge portions being formed with a glue overflow prevention structure for preventing glue from overflowing toward the inside of the frame body.

[0025] According to the heat exchange element of the present application, the frame includes a frame body, the partitioning ribs and the reinforcing ribs are provided inside the frame body, and the frame body has a pair of edge portions opposite in the second direction, at least one of the pair of edge portions being formed with a glue overflow prevention structure for preventing glue from overflowing toward the inside of the frame body, so that even if the edge portion of another heat exchange element inserted into the engaging groove of one heat exchange element is coated with glue, glue can be inhibited from leaking to the inside of the frame body to block the air flow passage when the heat exchange elements are stacked.

[0026] Further, in the heat exchange element of the present application, it is preferable that another frame provided on the other side in the thickness direction of the heat exchange fin be further included, the frame including partitioning ribs extending in a direction intersecting the first direction and partitioning adjacent air flow passages.

[0027] According to the heat exchange element of the present application, in addition to the frame provided on one side in the thickness direction of the heat exchange fin, another frame provided on the other side in the thickness direction of the heat exchange fin and formed separately from the above frame is further included, the frame including partitioning ribs extending in a direction intersecting the first direction and partitioning adjacent air flow passages, so that the support strength of the frame to the heat exchange fin can be further improved.

[0028] Further, in the heat exchange element of the present application, it is preferable that the air flow passages be provided with a plurality of air flow passages in the second direction, and the pitch of the partitioning ribs corresponding to the air flow passages having a large air flow speed be larger than the pitch of the partitioning ribs corresponding to the air flow passages having a small air flow speed.

[0029] According to the heat exchange element of the present application, the airflow passages are provided with a plurality of partition ribs in the second direction, the spacing of the partition ribs corresponding to the airflow passages with large airflow velocity is larger than the spacing of the partition ribs corresponding to the airflow passages with small airflow velocity, thus helping to reduce the number of partition ribs and further improve the heat exchange efficiency.

[0030] In addition, in order to achieve the above-mentioned object, the present application provides a heat exchange element, comprising a heat exchange sheet and a frame, wherein the frame is arranged on one side of the heat exchange sheet in the thickness direction and comprises partition ribs, the partition ribs extend along a first direction to separate adjacent airflow passages and are arranged in a plurality of rows in a second direction intersecting the first direction, the thickness of the partition ribs in the thickness direction of the heat exchange sheet is a, the spacing of adjacent partition ribs is b, and the length of the part of the heat exchange sheet between adjacent partition ribs after maximum plastic deformation is c, and the following relationship is satisfied: c≤ , wherein 1mm≤a≤5mm.

[0031] According to the heat exchange element of the present application, the frame is arranged on one side of the heat exchange sheet in the thickness direction and comprises partition ribs, the partition ribs extend along a first direction to separate adjacent airflow passages and are arranged in a plurality of rows in a second direction intersecting the first direction, thus helping to simplify the structure of the heat exchange element and the manufacturing process compared with the case where the frame is formed to have parts on both sides of the heat exchange sheet in the thickness direction, thereby improving the yield; and the thickness of the partition ribs in the thickness direction of the heat exchange sheet is a, the spacing of adjacent partition ribs is b, and the length of the part of the heat exchange sheet between adjacent partition ribs after maximum plastic deformation is c, and the following relationship is satisfied: c≤ , wherein 1mm≤a≤5mm, thus preventing the heat exchange sheets of the upper heat exchange element and the lower heat exchange element from contacting each other after deformation when the heat exchange elements are stacked in the up-down direction, thereby significantly reducing the heat exchange area, and preventing the air resistance from being too large due to the small height of the airflow passages, and avoiding the difficulty in material selection of the heat exchange sheet due to the large height of the airflow passages.

[0032] In addition, in order to achieve the above-mentioned object, the present application provides a total heat exchange core assembly, comprising first heat exchange elements and second heat exchange elements alternately stacked and formed with airflow passages that are guided in directions intersecting each other in adjacent layers, wherein at least one of the first heat exchange elements and the second heat exchange elements uses the above-mentioned heat exchange element, and the airflow passages are formed by a plurality of the partition ribs.

[0033] In addition, in order to achieve the above-mentioned object, the present application provides an air handling device, comprising the above-mentioned total heat exchange core assembly.

[0034] Further, in the air processing device of the present application, it is preferable that the air processing device is any one of a total heat exchanger and a humidifying device.

[0035] (EFFECT OF INVENTION)

[0036] According to the present application, the frame is provided on one side in the thickness direction of the heat exchange fin, and includes partitioning ribs extending in a first direction, partitioning adjacent air flow channels, and arranged in a second direction crossing the first direction to form a plurality of rows, thus, compared with the case where the frame is formed to have portions on both sides in the thickness direction of the heat exchange fin, it is helpful to simplify the structure of the heat exchange element, simplify the manufacturing process, and thus improve the yield; and, when the thickness of the partitioning ribs in the thickness direction of the heat exchange fin is a, the pitch of adjacent partitioning ribs is b, and the length of the portion of the heat exchange fin between adjacent partitioning ribs after maximum plastic deformation is c, the following relationship is satisfied: c≤ , where 5mm≤b≤15mm, thus, when the heat exchange elements are stacked up and down, it is possible to prevent the heat exchange fins of the upper heat exchange element from contacting the heat exchange fins of the lower heat exchange element after deformation, thus significantly reducing the heat exchange area, and to prevent the partitioning ribs from being too dense, thus significantly reducing the heat exchange area, thus, it is possible to ensure the heat exchange performance, and in addition, it is possible to inhibit the heat exchange fins from repeatedly deforming greatly, thus shortening the service life.

[0037] Fig. 1 is a perspective view schematically showing a total heat exchange core assembly according to an embodiment of the present application.

[0038] Fig. 2 is a partially exploded perspective view schematically showing a total heat exchange core assembly according to an embodiment of the present application.

[0039] Fig. 3 is a partially exploded perspective sectional view schematically showing a stacked state of a first heat exchange element and a second heat exchange element included in a total heat exchange core assembly according to an embodiment of the present application.

[0040] Fig. 4 is a perspective view schematically showing a first heat exchange element included in a total heat exchange core assembly according to an embodiment of the present application.

[0041] Fig. 5 is a side sectional view schematically showing a first heat exchange element included in a total heat exchange core assembly according to an embodiment of the present application.

[0042] Fig. 6A is a partially exploded perspective sectional view schematically showing a frame of a first heat exchange element included in a total heat exchange core assembly according to an embodiment of the present application.

[0043] Fig. 6B is an enlarged view of a boxed portion in Fig. 6A.

[0044] Fig. 7 is a partially enlarged perspective view schematically showing a frame of a first heat exchange element included in a total heat exchange core assembly according to an embodiment of the present application.

[0045] Fig. 8 is a perspective view schematically showing a second heat exchange element included in the total heat exchange core assembly according to the embodiment of the present application.

[0046] Fig. 9A is a partially cutaway perspective view schematically showing a frame of the second heat exchange element included in the total heat exchange core assembly according to the embodiment of the present application.

[0047] Fig. 9B is an enlarged view of the boxed portion in Fig. 9A.

[0048] Fig. 10 is a schematic view for explaining the relationship between the height of the partition rib, the pitch of the adjacent partition ribs, and the deformation amount of the heat exchange fin, in which the dotted line indicates the state after the heat exchange fin is deformed.

[0049] Hereinafter, the total heat exchange core assembly according to the embodiment of the present application will be described with reference to Figs. 1 to 9B.

[0050] Here, for convenience of explanation, three directions orthogonal to each other are assumed to be an X direction, a Y direction, and a Z direction, and one side in the X direction is assumed to be XI, the other side in the X direction is assumed to be X2, one side in the Y direction is assumed to be Yl, the other side in the Y direction is assumed to be Y2, one side in the Z direction is assumed to be Zl, and the other side in the Z direction is assumed to be Z2.

[0051] The total heat exchange core assembly 10 according to the embodiment of the present application can be applied to an air handling device.

[0052] Here, the air handling device can be a total heat exchanger including a housing made of, for example, a metal material, having a top wall, a bottom wall opposite to the top wall by a predetermined interval, and a side wall extending from the periphery of the top wall to the periphery of the bottom wall (the top wall and the bottom wall can be formed separately from the side wall or can be formed integrally with the side wall). Further, a fresh air inlet, an exhaust air outlet, a return air inlet, and a supply air outlet are provided on the side wall of the housing. A supply air path from the fresh air inlet to the supply air outlet and an exhaust air path from the return air inlet to the exhaust air outlet are formed inside the housing, and an internal circulation path from the return air inlet to the supply air outlet can also be formed.

[0053] Further, the total heat exchange core assembly is provided inside the housing. The housing includes a housing main body provided with a maintenance opening (the maintenance opening is provided, for example, in the bottom wall included in the housing main body), and a maintenance cover capable of opening and closing the maintenance opening (for example, the maintenance cover is connected to the main body of the housing by a connecting cord or is pivotally connected to the main body of the housing by a hinge member or the like). Further, a locking mechanism is preferably provided on the housing main body so as to lock or release the total heat exchange core assembly 10. Further, the maintenance cover can protrude from the outer surface of the housing main body when the maintenance cover closes the maintenance opening, or the housing main body can be provided with a recess at the periphery of the maintenance opening, and the outer surface of the maintenance cover can be flush with the outer surface of the housing main body when the maintenance cover closes the maintenance opening. Further, the back surface of the maintenance cover is preferably provided with a sealing material.

[0054] Further, the total heat exchange core assembly 10 has a first airflow passage that constitutes a part of the supply air path, and a second airflow passage that constitutes a part of the exhaust air path, and the fluid flowing through the first airflow passage can exchange heat with the fluid flowing through the second airflow passage.

[0055] Structure of the total heat exchange core assembly

[0056] As shown in FIGS. 1 to 3, the total heat exchange core assembly 10 is in a block shape as a whole, includes the first heat exchange elements 11 and the second heat exchange elements 12 that are alternately stacked, and is formed with the airflow passages Q1, Q2 that are guided in directions crossing each other in adjacent layers.

[0057] Here, as shown in FIGS. 1 and 2, the total heat exchange core assembly 10 further includes a top plate 13, a bottom plate (not shown), and side columns 14. The side columns 14 connect the top plate 13 and the bottom plate. For example, the side columns 14 pass through the top plate 13, the bottom plate, and the edge portions of the first heat exchange elements 11 and the second heat exchange elements 12 sandwiched between the top plate 13 and the bottom plate, and fix them.

[0058] Structure of the first heat exchange element

[0059] As shown in FIG. 4, the first heat exchange element 11 includes a heat exchange sheet 111 and a frame 112, wherein the frame 112 is provided on one side (Z1 direction side in the illustrated example) in the thickness direction (Z direction in the illustrated example) of the heat exchange sheet 111, includes partitioning ribs 1121 that extend in a first direction (X direction in the illustrated example) and partition adjacent airflow passages, and is arranged with a plurality of the partitioning ribs 1121 in a second direction (Y direction in the illustrated example) crossing the first direction.

[0060] Here, as shown in FIG. 4, the frame 112 further includes reinforcing ribs 1122 that extend in the second direction and are connected to the partitioning ribs 1121, and the thickness of the reinforcing ribs 1122 is smaller than the thickness of the partitioning ribs 1121 in the thickness direction of the heat exchange sheet 111. That is, the reinforcing ribs 1122 are as thin as possible, thereby further contributing to reduction in obstruction to the airflow passages formed between the partitioning ribs 1121, improvement in heat exchange efficiency, reduction in the height of the first heat exchange element 11, and further reduction in the height of the total heat exchange core assembly 10, and realization of miniaturization and thinness of the total heat exchanger. Further, under the same height condition, as many first heat exchange elements 11 as possible can be provided, and this also contributes to improvement in heat exchange efficiency of the total heat exchanger.

[0061] In addition, the heat exchange sheet 111 can be a film (e.g., a PP film) or paper having a heat exchange and humidity exchange function, or can be a metal. Specifically, as shown in FIG. 5, the heat exchange sheet 111 includes a base material layer 1111 and a functional layer 1112, and the base material layer 1111 is located on one side of the heat exchange sheet 111 in the thickness direction (the Z1 direction side in the illustrated example). The base material layer 1111 is formed of at least one of a metal material, a plastic material, and a fiber material. The metal material can be, for example, an aluminum foil or the like, the plastic material can be, for example, polypropylene, polyethylene, or the like, and the fiber material can be, for example, paper or the like. Alternatively, other materials such as a polymer material, a molecular sieve, graphene, a zeolite, a modified material, and a composite chemical material can be used to form the base material layer. On the other hand, the functional layer 1112 includes a moisture absorbing material, so that moisture molecules can be adsorbed on the functional layer 1112. In addition, the functional layer 1112 is configured to block, for example, CO2 molecules, viruses, and bacteria. Accordingly, a moisture permeable structure is formed on the base material layer 1111, and the moisture permeable structure allows the moisture molecules adsorbed on the functional layer 1112 to pass through the base material layer 1111. The moisture permeable structure is, for example, a moisture permeable hole formed in the base material layer 1111. The functional layer 1112 and the base material layer 1111 configured as described above cooperate to allow the heat exchange sheet 111 to block harmful components such as CO2 molecules, viruses, and bacteria in the air, while allowing moisture and heat to pass through the heat exchange sheet 111, so that the air supplied to the indoor space can be effectively treated.

[0062] Further, as shown in FIGS. 4 and 5, in the frame 112, the partitioning ribs 1121 and the reinforcing ribs 1122 are attached to the surface of the base material layer 1111 of the heat exchange fin 111 on the side of the base material layer 1111 (the Z1 direction side in the illustrated example). That is, the partitioning ribs 1121 and the reinforcing ribs 1122 support the heat exchange fin 111 from the side of the base material layer 1111 of the heat exchange fin 111. Further, the frame 112 is integrally formed with the heat exchange fin 111 by, for example, injection molding, and the material of the frame 112 can be plastic (for example, polypropylene, polystyrene, acrylonitrile-styrene-diene copolymer). Further, the frame 112 includes a frame 1120, the partitioning ribs 1121 and the reinforcing ribs 1122 are provided on the inner side of the frame 1120, both ends of the partitioning ribs 1121 are connected to the frame 1120, and both ends of the reinforcing ribs 1122 are also connected to the frame 1120. Specifically, the frame 1120 is generally rectangular and includes a pair of side portions 1120a, 1120b that are opposed to each other at intervals in a first direction (the X direction in the illustrated example) and extend in a second direction (the Y direction in the illustrated example), and a pair of side portions 1120c, 1120d that are opposed to each other at intervals in the second direction, extend in the first direction, and connect both ends of the pair of side portions 1120a, 1120b. Further, as shown in FIG. 6B, the side portions 1120a, 1120b each include a first bead B1 and a second bead B2 that are located on both sides of the partitioning ribs 1121 in the thickness direction of the heat exchange fin 111, the first bead B1 and the second bead B2 each extend in the second direction (the Y direction in the illustrated example), and the first bead B1 is located on the side (the Z1 direction side in the illustrated example) of the thickness direction of the heat exchange fin 111 than the second bead B2. Further, as shown in FIG. 6A, the side portions 1120a, 1120b are each provided with a through hole TH1 through which the side column 14 penetrates, the side portions 1120c, 1120d are each provided with a through hole TH2 through which the side column 14 penetrates, a plurality of the through holes TH1 are provided at intervals in the second direction (also the length direction of the side portions 1120a, 1120b in the illustrated example), the plurality of the through holes TH1 overlap the partitioning ribs 1121 when viewed in the first direction (the X direction in the illustrated example), and a plurality of the through holes TH2 are provided at intervals in the first direction (also the length direction of the side portions 1120c, 1120d in the illustrated example), the plurality of the through holes TH2 overlap the reinforcing ribs 1122 when viewed in the second direction (the Y direction in the illustrated example). Further, the frame 1120 of the first heat exchange element 11 can be engaged with the following frame 1220 of the second heat exchange element 12, and a glue overflow preventing structure is formed on the inner side edge of the frame 1120.Specifically, as shown in FIG. 3 and FIG. 7, a recess CI for the second heat exchange member 12 to be engaged with the following edge portions 1220a, 1220b (specifically, the first pressing strip) is provided on the other side (Z2 direction side in the illustrated example) of the edge portions 1120c, 1120d in the thickness direction of the heat exchange fin 111, and a card slot C2 is provided on the side (Z1 direction side in the illustrated example) of the edge portions 1120c, 1120d in the thickness direction of the heat exchange fin 111, and the side wall on the side of the reinforcing rib 1122 of the card slot C2 is formed in a flange shape protruding on the side (Z1 direction side in the illustrated example) of the reinforcing rib 1122 in the thickness direction of the heat exchange fin 111, thereby constituting a glue overflow prevention structure. Also, the card slot C2 is also for the second heat exchange member 12 to be engaged with the following edge portions 1220a, 1220b (specifically, the second pressing strip), and is on the inner side of the frame 112 than the recess CI.

[0063] Further, as shown in FIG. 4, the partition rib 1121 is provided at a plurality of positions in the second direction (in the illustrated example, at equal intervals, but not limited thereto). Also, both ends of the partition rib 1121 are connected to a pair of edge portions 1120a, 1120b. Also, in the thickness direction of the heat exchange fin 111 (Z direction in the illustrated example), the thickness dimension of the partition rib 1121 is the same as the height dimension of the airflow passage.

[0064] Further, as shown in FIG. 4, the reinforcing rib 1122 is provided at a plurality of positions in the first direction (X direction in the illustrated example) (in the illustrated example, at equal intervals, but not limited thereto). Also, both ends of at least a part of the reinforcing rib 1122 are connected to a pair of edge portions 1120c, 1120d. Also, a gate mark is formed on at least a part of the reinforcing rib 1122 (for example, formed on the intermediate portion in the length direction of the reinforcing rib 1122, and on the surface on the Z1 direction side of the reinforcing rib 1122).

[0065] Furthermore, as shown in Figure 4, the reinforcing rib 1122 includes a first reinforcing rib 1122a and a second reinforcing rib 1122b. The first reinforcing rib 1122a is continuously formed in the second direction (the Y direction in the illustrated example) and connects adjacent separating ribs 1121 to each other. The second reinforcing rib 1122b is discontinuously formed in the second direction (the Y direction in the illustrated example) and connects adjacent separating ribs 1121 to each other. (In the illustrated example, the second reinforcing rib 1122b includes multiple segments located on a straight line extending along the second direction and spaced apart from each other, of which the segment at the center in the second direction is...) The central section in the second direction is longer than the sections on both sides of the second direction, and the number of partition ribs 1121 connected to it is greater than the number of partition ribs 1121 connected to it on both sides of the second direction. Specifically, in the sections on both sides of the second direction, some connect two adjacent partition ribs 1121 to each other, some connect three adjacent partition ribs 1121 to each other, and some connect five adjacent partition ribs 1121 to each other; in contrast, the central section in the second direction connects nine adjacent partition ribs 1121 to each other. This helps to suppress deformation of the easily deformable central portion of the heat exchange plate 111 in the second direction. Furthermore, the first reinforcing rib 1122a connects the middle portions of a pair of sides 1120c and 1120d along their length direction, and the second reinforcing rib 1122b is provided between the pair of sides 1120a and 1120b, spaced apart from the first reinforcing rib 1122a (in the illustrated example, the pair of second reinforcing ribs 1122b are symmetrically arranged with respect to the first reinforcing rib 1122a, but it is not limited to this; the pair of second reinforcing ribs 1122b can also be arranged asymmetrically with respect to the first reinforcing rib 1122a, for example, the first reinforcing rib 1122a can be arranged at a position offset from the middle of the length direction of the sides 1120c and 1120d).

[0066] Furthermore, as shown in Figure 10, let the thickness of the partition rib 1121 in the thickness direction of the heat exchange plate 111 be a, the spacing between adjacent partition ribs 1121 be b, and the length of the portion of the heat exchange plate 111 located between adjacent partition ribs 1121 after maximum plastic deformation be c. Preferably, the following relationship is satisfied: c ≤ Wherein, 5mm ≤ b ≤ 15mm. Furthermore, when the velocity of the airflow through the airflow channel between adjacent partition ribs 1121 is V, it is preferable that V ≤ 3m / s. Preferably, the thickness of the reinforcing rib 1122 is less than or equal to half the thickness of the partition rib 1121. Furthermore, it is preferable that the dimension of the reinforcing rib 1122 in the first direction (X direction in the illustrated example) is larger than the dimension of the partition rib 1121 in the second direction (Y direction in the illustrated example). Furthermore, it is preferable that when the width of the reinforcing rib 1122 in the first direction is d, the following relationship is satisfied: d ≤ 5mm.

[0067] (Structure of the second heat exchange element)

[0068] As shown in Figure 8, the second heat exchange element 12 includes a heat exchange plate 121 and a frame 122. The frame 122 is located on one side of the thickness direction (Z direction in the illustrated example) of the heat exchange plate 121 (Z1 direction side in the illustrated example) and includes a partition rib 1221. The partition rib 1221 extends along a third direction (Y direction in the illustrated example) to separate adjacent airflow channels and is arranged in a plurality of ribs in a fourth direction (X direction in the illustrated example) that intersects with the third direction.

[0069] Here, as shown in Figure 8, the frame 122 also includes reinforcing ribs 1222, which extend along the fourth direction and are connected to the partition ribs 1221. In the thickness direction of the heat exchange plate 121, the thickness of the reinforcing ribs 1222 is less than the thickness of the partition ribs 1221. That is, the reinforcing ribs 1222 are made as thin as possible, which further helps to reduce obstruction to the airflow channels formed between the partition ribs 1221 and improve heat exchange efficiency. Simultaneously, it also helps to reduce the height of the second heat exchange element 12, thereby helping to reduce the height of the total heat exchange core assembly 10, achieving miniaturization and thinning of the total heat exchanger. Furthermore, under the same height conditions, maximizing the number of second heat exchange elements 12 also helps to improve the heat exchange efficiency of the total heat exchanger.

[0070] Furthermore, similar to the first heat exchange element 11, the heat exchange plate 121 of the second heat exchange element 12 can also be a thin film (e.g., PP film) or paper with heat exchange and humidification functions, or it can be metal. Specifically, the heat exchange plate 121 of the second heat exchange element 12 includes a substrate layer and a functional layer, with the substrate layer positioned on one side of the heat exchange plate 121 in the thickness direction compared to the functional layer. The substrate layer is formed from at least one of a metallic material, a plastic material, and a fibrous material. The metallic material can be, for example, aluminum foil; the plastic material can be, for example, polypropylene or polyethylene; and the fibrous material can be, for example, paper. Alternatively, other materials can be used to form the substrate layer, such as polymers, molecular sieves, graphene, zeolites, modified materials, and composite chemical materials. On the other hand, the functional layer includes a hygroscopic material, allowing water molecules to be adsorbed onto the functional layer. Furthermore, the functional layer is configured to block molecules such as CO2 molecules, viruses, and bacteria. Accordingly, a permeable structure is formed on the substrate layer, allowing water molecules adsorbed on the functional layer to pass through the substrate layer. The moisture-permeable structure is, for example, a moisture-permeable hole formed on the substrate layer. The functional layer and the substrate layer provided as described above work together to enable the heat exchange plate to block harmful components such as CO2 molecules, viruses and bacteria in the air, while allowing moisture and heat to pass through the heat exchange plate 121, thereby effectively treating the air supplied to the room.

[0071] Furthermore, in the frame 122, the partition ribs 1221 and the reinforcing ribs 1222 are respectively attached to the surface of the heat exchange plate 121 on one side of the substrate layer (in the illustrated example, the Z1 direction side) (that is, the partition ribs 1221 and the reinforcing ribs 1222 can support the heat exchange plate 121 from the substrate layer side). The frame 122 is integrally formed on the heat exchange plate 121 by injection molding, and the material of the frame 122 can be plastic (e.g., polypropylene, polystyrene, acrylonitrile-styrene-butadiene copolymer). The frame 122 includes a frame 1220, with the partition ribs 1221 and the reinforcing ribs 1222 disposed inside the frame 1220. The two ends of the partition ribs 1221 are connected to the frame 1220, and the two ends of the reinforcing ribs 1222 are also connected to the frame 1220. Specifically, the frame 1220 is rectangular in shape and includes: a pair of sides 1220a and 1220b, which are spaced apart and opposite each other in a third direction (Y direction in the illustrated example) and extend along a fourth direction (X direction in the illustrated example); and a pair of sides 1220c and 1220d, which are spaced apart and opposite each other in the fourth direction and extend along a third direction, connecting the two ends of the pair of sides 1220a and 1220b. Furthermore, as shown in Figure 9B, sides 1220a and 1220b respectively include a first pressure strip B3 and a second pressure strip B4 located on both sides of the partition rib 1221 in the thickness direction of the heat exchange plate 121. The first pressure strip B3 and the second pressure strip B4 extend along the fourth direction (X direction in the illustrated example), and the first pressure strip B3 is closer to one side of the heat exchange plate 121 in the thickness direction (Z1 direction side in the illustrated example) than the second pressure strip B4. Furthermore, as shown in Figure 9A, sides 1220a and 1220b are respectively provided with through holes TH3 for the side pillars 14 to pass through, and sides 1220c and 1220d are respectively provided with through holes TH4 for the side pillars 14 to pass through. Multiple through holes TH3 are provided at intervals in the fourth direction (in the example shown, this is also the length direction of sides 1220a and 1220b). When viewed along the third direction (in the example shown, this is the Y direction), these multiple through holes TH3 overlap with the partition rib 1221, and when viewed along the thickness direction of the heat exchange plate 121, they overlap with through holes TH2. Multiple through holes TH4 are provided at intervals in the third direction (in the example shown, this is also the length direction of sides 1220c and 1220d). When viewed along the fourth direction (in the example shown, this is the X direction), these multiple through holes TH4 overlap with the reinforcing rib 1222, and when viewed along the thickness direction of the heat exchange plate 121, they overlap with through holes TH1. Furthermore, the frame 1220 of the second heat exchange element 12 can engage with the frame 1120 of the first heat exchange element 11, and an anti-overflow adhesive structure is formed on the inner edge of the frame 1220.Specifically, on the other side of the edges 1220c and 1220d in the thickness direction of the heat exchange plate 121 (the Z2 direction side in the illustrated example), a groove is provided for the edges 1120a and 1120b (specifically, the first pressure strip) of the first heat exchange element 11 to be inserted. On the side of the edges 1220c and 1220d in the thickness direction of the heat exchange plate 121 (the Z1 direction side in the illustrated example), a slot is provided. The sidewall of the slot on the side near the reinforcing rib 1222 has a convex edge that protrudes from the side of the reinforcing rib 1222 towards the thickness direction of the heat exchange plate 121 (the Z1 direction side in the illustrated example), forming an anti-overflow adhesive structure. Furthermore, the above-mentioned slot is also for the edges 1120a and 1120b (specifically, the second pressure strip) of the first heat exchange element 11 to be inserted, and is closer to the inner side of the frame 122 than the above-mentioned groove.

[0072] Furthermore, as shown in Figure 8, multiple partition ribs 1221 are spaced apart in the fourth direction (the X direction in the illustrated example) (they are spaced equally apart in the illustrated example, but are not limited to this). The two ends of each partition rib 1221 are connected to a pair of edges 1220a and 1220b, respectively. Moreover, in the thickness direction of the heat exchange plate 121 (the Z direction in the illustrated example), the thickness of the partition rib 1221 is the same as the height of the airflow channel.

[0073] Furthermore, as shown in Figure 8, multiple reinforcing ribs 1222 are spaced apart in a third direction (Y direction in the illustrated example) (they are spaced equally apart in the illustrated example, but are not limited to this). At least one portion of the reinforcing ribs 1222 has its two ends connected to a pair of edges 1220c and 1220d, respectively. Additionally, gate marks are formed on at least one portion of the reinforcing ribs 1222 (for example, formed at the middle portion in the length direction of the reinforcing rib 1222, and formed on the surface of the reinforcing rib 1222 in the Z1 direction).

[0074] Furthermore, as shown in Figure 8, the reinforcing rib 1222 includes a first reinforcing rib 1222a and a second reinforcing rib 1222b. The first reinforcing rib 1222a is continuously formed in the fourth direction (the X direction in the illustrated example) and connects adjacent partition ribs 1221 to each other. The second reinforcing rib 1222b is discontinuously formed in the fourth direction and connects adjacent partition ribs 1221 to each other. (In the illustrated example, the second reinforcing rib 1222b includes multiple segments spaced apart from each other along a straight line extending in the fourth direction. Among these segments, the segment in the center of the fourth direction is longer than the segments on both sides of the fourth direction, and the number of partition ribs 1221 connected to the segment in the center of the fourth direction is greater than the number of partition ribs 1221 connected to the segments on both sides of the fourth direction. Specifically, in the segments on both sides of the fourth direction, each segment connects two adjacent partition ribs 1221 to each other; in contrast, the segment in the center of the fourth direction connects three adjacent partition ribs 1221 to each other. This suppresses deformation of the easily deformable central portion of the heat exchange plate 121 in the fourth direction.) Furthermore, the first reinforcing rib 1222a connects the middle portions of a pair of sides 1220c and 1220d along their length direction, and the second reinforcing rib 1222b is provided between the pair of sides 1220a and 1220b, spaced apart from the first reinforcing rib 1222a (in the illustrated example, the pair of second reinforcing ribs 1222b are symmetrically arranged with respect to the first reinforcing rib 1222a, but it is not limited to this; the pair of second reinforcing ribs 1222b can also be arranged asymmetrically with respect to the first reinforcing rib 1222a, for example, the first reinforcing rib 1222a can be arranged at a position offset from the middle of the length direction of the sides 1220c and 1220d).

[0075] Furthermore, as shown in Figure 10, let the thickness of the partition rib 1221 in the thickness direction of the heat exchange plate 121 be a, the spacing between adjacent partition ribs 1221 be b, and the length of the portion of the heat exchange plate 121 located between adjacent partition ribs 1221 after maximum plastic deformation be c. Preferably, the following relationship is satisfied: c ≤ Wherein, 5mm ≤ b ≤ 15mm. Furthermore, when the velocity of the airflow through the airflow channel between adjacent partition ribs 1221 is V, it is preferable that V ≤ 3m / s. Furthermore, it is preferable that the thickness of the reinforcing rib 1222 is less than or equal to half the thickness of the partition rib 1221. Furthermore, it is preferable that the dimension of the reinforcing rib 1222 in the third direction (Y direction in the illustrated example) is larger than the dimension of the partition rib 1221 in the fourth direction (X direction in the illustrated example). Furthermore, it is preferable that when the width of the reinforcing rib 1222 in the third direction is d, the following relationship is satisfied: d ≤ 5mm.

[0076] (Main effects of this implementation method)

[0077] According to the total heat exchange core assembly 10 of this embodiment, in the first heat exchange element 11 (second heat exchange element 12), a frame 112 (frame 122) is disposed on one side of the heat exchange plate 111 (heat exchange plate 121) in the thickness direction, and includes a partition rib 1121 (partition rib 1221). The partition rib 1121 (partition rib 1221) extends along a first direction (third direction) to separate adjacent airflow channels, and multiple ribs are arranged in a second direction (fourth direction) intersecting the first direction. Therefore, the frame 112 (frame 122) is formed to have a space between the heat exchange plate 111 (heat exchange plate 121) and the heat exchange plate 122. Compared to the portions on both sides of the thickness direction of heat exchange element 121), this helps to simplify the structure of the first heat exchange element 11 (second heat exchange element 12), simplify the manufacturing process, and thus improve the yield. Furthermore, if the thickness of the partition rib 1121 (partition rib 1221) in the thickness direction of heat exchange plate 111 (heat exchange plate 121) is a, the spacing between adjacent partition ribs 1121 (partition rib 1221) is b, and the length of the portion of heat exchange plate 111 (heat exchange plate 121) located between adjacent partition ribs 1121 (partition rib 1221) after maximum plastic deformation is c, the following relationship is satisfied: c ≤ Where 5mm≤b≤15mm, therefore, when the heat exchange elements are stacked on top of each other, it can prevent the heat exchange plates of the upper heat exchange element from contacting each other after deformation, which would lead to a significant reduction in the heat exchange area. In addition, it can prevent the heat exchange area from being significantly reduced due to excessively dense partition ribs. Thus, heat exchange performance can be ensured. Furthermore, it can also suppress repeated large deformation of the heat exchange plates, which would lead to a shortened service life.

[0078] The present invention has been described above by way of example with reference to the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above embodiments.

[0079] For example, in the above embodiments, the heat exchange elements can be stacked to form a total heat exchange core. The total heat exchange core is installed in the airflow channel of air handling equipment such as a total heat exchanger, a fresh air unit, and an indoor air conditioning unit with ventilation function, to perform heat exchange treatment on the indoor and outdoor air flowing through the airflow channel.

[0080] Heat exchange elements can also be used for humidification. Multiple heat exchange elements are stacked to form a humidification core. Air and water flow through the airflow channels of adjacent heat exchange element layers, respectively. In other words, the airflow channel includes both airflow channels and water flow channels. The humidification core is placed in the humidification device. When air flows through the humidification core, water in the water flow channels of the humidification core is carried into the airflow channels, thereby humidifying the air.

[0081] Furthermore, in the above embodiments, the air handling equipment can be used alone or in combination. For example, a humidifier (which may or may not have a fan) can be placed downstream of the air supply path of the total heat exchanger. The two devices can be installed as a single unit or separately.

[0082] Furthermore, in the above embodiments, the first heat exchange element 11 may also include another frame disposed on the other side of the heat exchange plate 111 in the thickness direction. This other frame includes partition ribs extending in a direction intersecting the first direction and separating adjacent airflow channels. In this case, the other frame may also include reinforcing ribs similar to reinforcing rib 1122.

[0083] Furthermore, in the above embodiments, the second heat exchange element 12 may also include another frame disposed on the other side of the heat exchange plate 121 in the thickness direction. This other frame includes partition ribs extending in a direction intersecting the third direction and separating adjacent airflow channels. In this case, the other frame may also include reinforcing ribs similar to reinforcing rib 1222.

[0084] Furthermore, in the above embodiments, the frame 112 (frame 122) can also be bonded to one side of the heat exchange plate 111 (heat exchange plate 121) in the thickness direction by adhesive (bonding agent).

[0085] Furthermore, in the above embodiment, the inner wall of the slot formed on the frame of the frame 112 (frame 122) constitutes an anti-overflow adhesive structure, but it is not limited to this. As an anti-overflow adhesive structure, the inner wall may be replaced or the following structure may be formed on the basis of the inner wall: a baffle that protrudes toward and abuts against the other side (for example, at position D in FIG3, extending along the length direction of the slot) is formed on at least one of the slot of a heat exchange element and the edge of another heat exchange element that engages with the slot. Thus, when adhesive is applied to the edge of another heat exchange element that engages with the slot of a heat exchange element, the overflow of adhesive toward the inner side of the frame can be further suppressed, and the baffle can also prevent external gas from mixing into the airflow channel. In addition, in the above embodiment, the number of partition ribs 1121 (partition ribs 1221) and the number of reinforcing ribs 1122 (reinforcing ribs 1222) can be appropriately set as needed.

[0086] Furthermore, in the above embodiments, the reinforcing rib 1122 is attached to one side of the substrate layer of the heat exchange plate 111, and the reinforcing rib 1222 is attached to one side of the substrate layer of the heat exchange plate 121. However, it is not limited to this. The reinforcing rib 1122 can also be separated from the substrate layer of the heat exchange plate 111, and the reinforcing rib 1222 can also be separated from the substrate layer of the heat exchange plate 121.

[0087] Furthermore, in the above embodiments, the shape of frame 112 (frame 122) is not limited to a rectangle, but can also be a circle or other shapes.

[0088] Furthermore, in the above embodiments, the frame 112 (frame 122) may also be a hollow plate or a metal part.

[0089] Furthermore, in the above embodiments, the first heat exchange element 11 and the second heat exchange element 12 are formed with substantially the same structure, but are not limited thereto. The first heat exchange element 11 and the second heat exchange element 12 may also be formed with different structures. For example, the reinforcing ribs of one of the first heat exchange element 11 and the second heat exchange element 12 may be omitted.

[0090] Furthermore, in the above embodiments, the first heat exchange element 11 and the second heat exchange element 12 respectively satisfy 5mm≤b≤15mm (where b is the spacing between adjacent partition ribs), but are not limited to this, and may also satisfy 5mm≤b≤15mm and 1mm≤a≤5mm or only satisfy 1mm≤a≤5mm (where a is the thickness of the partition rib in the thickness direction of the heat exchange plate, and b is the spacing between adjacent partition ribs).

[0091] In addition, in the above embodiments, the total heat exchange core assembly 10 may also include a guide rail, which may be fixed to the housing of the air handling equipment or to the inner shell formed of foam material inside the housing of the air handling equipment.

[0092] It should be understood that within the scope of this invention, the various parts of the embodiments can be freely combined, or the various parts of the embodiments can be appropriately modified or omitted.

[0093] 10 Total Heat Exchange Core Components

[0094] 11 First heat exchange element

[0095] 111 heat exchange fins

[0096] 1111 Substrate layer

[0097] 1112 Functional Layer

[0098] 112 Framework

[0099] 1120 border

[0100] 1120a Edge

[0101] 1120b Edge

[0102] 1120c edge

[0103] 1120d edge

[0104] 1121 Dividing bar

[0105] 1122 Reinforcing Rib

[0106] 1122a First reinforcing rib

[0107] 1122b Second reinforcing rib

[0108] 12 Second heat exchange element

[0109] 121 heat exchanger fins

[0110] 122 Frame

[0111] 1221 Dividing bar

[0112] 1222 Reinforcing Rib

[0113] 1222a First stiffener

[0114] 1222b Second reinforcing rib

[0115] 1220 border

[0116] 1220a Edge

[0117] 1220b Edge

[0118] 1220c edge

[0119] 1220d edge

[0120] 13. Top Slab

[0121] 14 Side Columns

[0122] B1 First Pressing Strip

[0123] B2 Second Pressing Strip

[0124] B3 First Pressing Strip

[0125] B4 Second Pressing Strip

[0126] TH1 through hole

[0127] TH2 through hole

[0128] TH3 through hole

[0129] TH4 through hole

[0130] C1 Groove

[0131] C2 slot

[0132] Q1 Airflow Channel

[0133] Q2 Airflow Channel

Claims

A heat exchanging element comprising a heat exchanging fin and a frame, characterized in that, The frame is arranged on one side of the heat exchange sheet in the thickness direction of the heat exchange sheet, and includes partition ribs extending in a first direction to partition adjacent air flow channels and arranged in a second direction crossing the first direction to form a plurality of rows. The thickness of the partition ribs in the thickness direction of the heat exchange sheet is a, the distance between adjacent partition ribs is b, and the length of the portion of the heat exchange sheet between adjacent partition ribs after maximum plastic deformation is c. The following relationship is satisfied: c≤ wherein 5 mm ≤ b ≤ 15 mm. The heat exchange element as claimed in claim 1, characterized in that The heat exchange sheet includes a base material layer and a functional layer, the base material layer is on one side of the heat exchange sheet in the thickness direction, and the partition rib is attached to the surface of the base material layer side of the heat exchange sheet. The heat exchange element as claimed in claim 1, characterized in that The frame further includes a reinforcing rib extending in a second direction intersecting the first direction and connected to the partition rib, and the thickness of the reinforcing rib in the thickness direction of the heat exchange sheet is less than or equal to half the thickness of the partition rib. The heat exchange element as claimed in claim 3, characterized in that The reinforcing rib has a dimension in the first direction that is greater than a dimension of the partition rib in the second direction. The heat exchange element as claimed in claim 3, characterized in that The reinforcing rib is provided with one or a plurality of reinforcing ribs in the first direction. The heat exchange element as claimed in claim 5, characterized in that The partition rib is provided with a plurality of partition ribs in the second direction, and the reinforcing rib includes at least one of a first reinforcing rib continuously formed in the second direction and connecting adjacent partition ribs to each other, and a second reinforcing rib intermittently formed in the second direction and connecting adjacent partition ribs to each other. The heat exchange element as claimed in claim 6, characterized in that The second reinforcing rib includes a plurality of segments arranged in the second direction, and among the plurality of segments, a central segment in the second direction is longer than segments on both sides of the second direction. The heat exchange element as claimed in claim 3, characterized in that When the width of the reinforcing rib in the first direction is d, the following relationship is satisfied: d ≤ 5 mm. The heat exchange element as claimed in claim 3, characterized in that The frame includes a frame, the partition rib and the reinforcing rib are provided on the inner side of the frame, and the frame has a pair of edge portions opposite in the second direction, and at least one of the pair of edge portions is formed with a glue overflow prevention structure for preventing glue from overflowing to the inner side of the frame. The heat exchange element as claimed in claim 1, characterized in that Another frame provided on the other side in the thickness direction of the heat exchange sheet includes a partition rib extending in a direction intersecting the first direction and partitioning adjacent airflow passages. The heat exchange element as claimed in claim 1, characterized in that The airflow passages are provided with a plurality of airflow passages in the second direction, and the pitch of the partition rib corresponding to the airflow passage with a large airflow velocity is greater than the pitch of the partition rib corresponding to the airflow passage with a small airflow velocity. A heat exchange element comprising a heat exchange fin and a frame, characterized in that The frame is arranged on one side of the heat exchange sheet in the thickness direction of the heat exchange sheet, and includes partition ribs extending in a first direction to partition adjacent air flow channels and arranged in a second direction crossing the first direction to form a plurality of rows. The thickness of the partition ribs in the thickness direction of the heat exchange sheet is a, the distance between adjacent partition ribs is b, and the length of the portion of the heat exchange sheet between adjacent partition ribs after maximum plastic deformation is c. The following relationship is satisfied: c≤ wherein 1 mm ≤ a ≤ 5 mm. A total heat exchange core assembly including first and second heat exchange elements alternately stacked and formed with airflow passages that are conducted in directions crossing each other in adjacent layers, characterized by At least one of the first heat exchange element and the second heat exchange element uses the heat exchange element according to claim 1 or 12, and the airflow passages are formed by a plurality of the partition ribs. An air treatment device, characterized in that The total heat exchange core assembly includes the total heat exchange core assembly according to claim 13.

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