Heat exchange core and heat exchanger
By using a multi-layered core plate design and a boss and rib structure, the problem of uneven flow of hot and cold media is solved, and a heat exchanger design with high efficiency and low resistance is achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG YINLUN THERMAL MANAGEMENT SYST OF NEW ENERGY CO LTD
- Filing Date
- 2024-12-27
- Publication Date
- 2026-05-08
AI Technical Summary
The uneven flow of hot and cold media in existing heat exchangers results in low heat dissipation performance and high flow resistance, necessitating improvements in heat dissipation performance and reduction in resistance.
The core plate adopts a multi-layer stacked design, with first and second medium cavities, each containing a U-shaped passage and a bypass passage. Combined with bosses, ribs and fins, it enhances sealing and support, forming a stable flow path.
It improves the heat exchange efficiency of the heat exchanger, reduces the resistance to medium flow, enhances the structural strength and stability, and improves the uniformity of medium flow and heat exchange effect.
Smart Images
Figure CN224215907U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of heat exchange technology, specifically to a heat exchange core and a heat exchanger. Background Technology
[0002] With the continuous maturation of heat exchanger design, improving heat dissipation performance and reducing resistance within a limited space has become a development trend. However, in existing heat exchangers, the hot and cold media exhibit cross-flow or parallel flow, with higher velocities near their respective inlet and outlet regions and lower velocities further away. This results in an uneven flow field distribution; where the cold media has a high velocity, the hot media has a low velocity, and vice versa, leading to low heat dissipation performance. To address this, a U-shaped flow pattern for the hot and cold media within the heat exchanger becomes a viable option. While this improves heat dissipation performance, it increases resistance, hindering efficient operation. Therefore, a design that improves heat dissipation performance while reducing resistance is needed. Utility Model Content
[0003] The purpose of this invention is to provide a heat exchange core and a heat exchanger that enhances the heat exchange performance of the heat exchanger while reducing the resistance to the flow of the medium within the heat exchanger.
[0004] To achieve the above objectives, this utility model provides the following technical solution:
[0005] In a first aspect, this utility model provides a heat exchange core, which includes multiple stacked core plates. Each core plate has a first side and a second side facing each other. The core plate has a first medium inlet and a first medium outlet near the first side, and a second medium inlet and a second medium outlet near the second side. A medium cavity is formed between two adjacent core plates. One side of a core plate is the first medium cavity, and the other side is the second medium cavity. The first medium cavity and the second medium cavity are not connected. The multiple first medium cavities and the multiple second medium cavities are arranged at intervals.
[0006] The first medium cavity is connected to the first medium inlet and the first medium outlet, and the second medium cavity is connected to the second medium inlet and the second medium outlet;
[0007] The first medium cavity includes a first U-shaped passage and a first bypass passage. The two ends of the first U-shaped passage are respectively connected to the first medium inlet and the first medium outlet. The two ends of the first bypass passage are respectively connected to the first medium inlet and the first medium outlet. The first bypass passage is located close to the first side.
[0008] The second medium cavity includes a second U-shaped passage and a second bypass passage. The two ends of the second U-shaped passage are respectively connected to the second medium inlet and the second medium outlet. The two ends of the second bypass passage are respectively connected to the second medium inlet and the second medium outlet. The second bypass passage is located close to the second side.
[0009] Compared with existing technologies, the heat exchanger core provided by this utility model includes multiple stacked core plates. First and second medium holes are formed on the core plates as channels for medium flow. Around the first medium holes are bosses with extensions extending towards the edges of the core plates. These bosses provide support points for adjacent core plates, and the extensions fill the support missing due to the narrow space between the bosses and the edges of the core plates, which prevents the installation of fins. When multiple core plates are assembled into a heat exchanger core, the bosses fit tightly with corresponding parts of adjacent core plates, achieving a sealing function and forming an effective support structure perpendicular to the plane of the core plates. This mutually fitted support structure can withstand the pressure from the upper core plates and the impact force generated by the flowing medium, thereby preventing excessive deformation or displacement of the core plates under these external forces. This enhances the internal structural strength of the heat exchanger and improves its stability and service life.
[0010] Optionally, in the heat exchange core described above, the core plate has a first surface and a second surface facing each other. A first protrusion is provided around the first medium inlet and the first medium outlet on the first surface, and a second protrusion is provided around the second medium inlet and the second medium outlet on the second surface. The upper core plate is stacked relative to the lower core plate by rotating 180 degrees around an axis perpendicular to the plane of the core plate, and the second surface of the upper core plate and the first surface of the lower core plate are facing each other.
[0011] A first rib extending along a first direction is provided on the first surface of the core board for contacting the second surface of the adjacent core board. A second rib extending along the first direction is provided on the second surface of the core board for contacting the first surface of the adjacent core board. The first rib and the second rib are arranged along the first direction, and the first rib is located between the first medium inlet and the first medium outlet, and the second rib is located between the second medium inlet and the second medium outlet. There is a gap between the first rib and the first side, and there is a gap between the second rib and the second side.
[0012] Optionally, in the heat exchange core described above, the first rib and the second rib have the same geometry. The first rib is located on the center line of the line connecting the first medium inlet and the first medium outlet, and the second rib is located on the center line of the line connecting the second medium inlet and the second medium outlet. The first rib is used to seal and fit against the second rib on the adjacent core plate, and the second rib is used to seal and fit against the first rib on the adjacent core plate.
[0013] Optionally, in the heat exchange core described above, one of the two adjacent core plates has a plurality of protrusions on its first surface, and the other core plate has a plurality of protrusions on its second surface.
[0014] Optionally, in the heat exchange core described above, the heat exchange core further includes fins disposed on the first surface of a core plate having protrusions on the second surface, and fixed to the first surface of the core plate.
[0015] Optionally, in the heat exchange core described above, the edges of the core plates are provided with flanges, and the flanges of adjacent core plates overlap and seal each other.
[0016] Optionally, in the heat exchange core described above, the heat exchange core further includes a top plate, which is fixedly connected to the outermost core plate of the heat exchange core, and the top plate is used to seal adjacent core plates.
[0017] Secondly, this utility model also provides a heat exchanger, which includes any of the heat exchange cores mentioned above.
[0018] Compared with the prior art, the beneficial effects of the heat exchanger provided by this utility model are the same as those of the heat exchange core, and will not be repeated here. Attached Figure Description
[0019] The accompanying drawings, which are included to provide a further understanding of the present invention and constitute a part of this invention, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:
[0020] Figure 1 This is a schematic diagram of the structure of a heat exchange core provided in an embodiment of the present utility model;
[0021] Figure 2 This is a schematic diagram of the structure of a core board provided in an embodiment of the present utility model;
[0022] Figure 3 This is a schematic diagram of the flow area of a core board provided in an embodiment of the present utility model;
[0023] Figure 4 This is a schematic diagram of the bottom structure of a core board provided in an embodiment of the present utility model;
[0024] Figure 5 This is a schematic diagram of the fit between a core plate and fins provided in an embodiment of this utility model.
[0025] Reference numerals in the attached drawings: 1 is the core plate, 110 is the first side, 120 is the second side, 130 is the first medium inlet, 140 is the first medium outlet, 150 is the second medium inlet, 160 is the second medium outlet, 170 is the first boss, 180 is the second boss, 190 is the protrusion, 2 is the first U-shaped passage, 3 is the first bypass passage, 4 is the second U-shaped passage, 5 is the second bypass passage, 6 is the first surface, 610 is the first rib, 7 is the second surface, 710 is the second rib, 8 is the fin, 9 is the flange, 10 is the first bypass area, 11 is the first liquid inlet / outlet area, 12 is the main flow area, 13 is the second liquid inlet / outlet area, and 14 is the second bypass area. Detailed Implementation
[0026] To make the technical problems, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.
[0027] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.
[0028] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified. "Several" means one or more, unless otherwise explicitly specified.
[0029] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0030] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0031] Please see Figure 1 The heat exchange core provided by this utility model includes multiple stacked core plates 1. Each core plate 1 has a first side 110 and a second side 120. Each core plate 1 has a first medium inlet and a first medium outlet near the first side 110, and a second medium inlet and a second medium outlet near the second side 120. A medium cavity is formed between adjacent core plates 1. One side of a core plate 1 is the first medium cavity, and the other side is the second medium cavity. The first and second medium cavities are not connected. Multiple first and second medium cavities are arranged alternately. The first medium cavity is connected to the first medium inlet and the first medium outlet, and the second medium cavity is connected to the first medium outlet. The first medium cavity includes a first U-shaped passage 2 and a first bypass passage 3. The two ends of the first U-shaped passage 2 are respectively connected to the first medium inlet and the first medium outlet. The two ends of the first bypass passage 3 are respectively connected to the first medium inlet and the first medium outlet. The first bypass passage 3 is located near the first side 110. The second medium cavity includes a second U-shaped passage 4 and a second bypass passage 5. The two ends of the second U-shaped passage 4 are respectively connected to the second medium inlet and the second medium outlet. The two ends of the second bypass passage 5 are respectively connected to the second medium inlet and the second medium outlet. The second bypass passage 5 is located near the second side 120.
[0032] In specific implementation: First, multiple core boards 1 are assembled in a certain manner, so that the core boards 1 cooperate with each other to form multiple dielectric cavities. During the assembly process, the first dielectric inlet and the first dielectric outlet of each core board 1 are connected to the first dielectric cavity, and the second dielectric inlet and the second dielectric outlet are connected to the second dielectric cavity. When a medium enters the first dielectric cavity through the first dielectric inlet, part of it flows from the first dielectric inlet to the first dielectric outlet through the first U-shaped passage 2, while the other part flows from the first dielectric inlet to the first dielectric outlet through the first bypass passage 3. Since the first bypass passage 3 is provided at the first side 110, the medium can flow in the first dielectric cavity near the first side 110. When another medium enters the second dielectric cavity, similarly, part of the medium flows from the second dielectric inlet to the second dielectric outlet through the second U-shaped passage 4, and the other part flows from the second dielectric inlet to the second dielectric outlet through the second bypass passage 5. The second bypass passage 5 is provided at the second side 120, so the medium can also flow in the second dielectric cavity near the second side 120. The arrangement of the first and second medium chambers creates relatively independent flow paths for the hot and cold media within the core plate 1, enabling sufficient heat exchange between them and improving the heat exchanger's efficiency. Simultaneously, the first bypass passage 3 and the second bypass passage 5 increase the flow paths of the media within the core plate 1, resulting in a more uniform distribution of the media and smoother flow. This reduces resistance during flow and further enhances the heat exchange effect.
[0033] As one possible implementation, such as Figure 1 and Figure 4 As shown, the core board 1 has a first surface 6 and a second surface 7 facing each other. A first boss 170 is provided around the first medium inlet hole 130 and the first medium outlet hole 140 on the first surface 6. A second boss 180 is provided around the second medium inlet hole 150 and the second medium outlet hole 160 on the second surface 7. The upper core board 1 is stacked relative to the lower core board 1, rotated 180 degrees about an axis perpendicular to the plane of the core board 1, and the second surface 7 of the upper core board 1 and the first surface 6 of the lower core board 1 are facing each other. A first rib 61 extending along a first direction is provided on the first surface 6 of the core board 1. 0, for contacting the second surface 7 of the adjacent core plate 1, the second surface 7 of the core plate 1 is provided with a second protruding rib 710 extending along the first direction for contacting the first surface 6 of the adjacent core plate 1, the first protruding rib 610 and the second protruding rib 710 are arranged along the first direction, and the first protruding rib 610 is located between the first medium inlet hole 130 and the first medium outlet hole 140, the second protruding rib 710 is located between the second medium inlet hole 150 and the second medium outlet hole 160, there is a gap between the first protruding rib 610 and the first side 110, and there is a gap between the second protruding rib 710 and the second side 120.
[0034] Specifically, the core plate 1 has two opposing surfaces, namely a first surface 6 and a second surface 7. A first boss 170 is provided around the first medium inlet 130 and the first medium outlet 140 on the first surface 6, and a second boss 180 is provided around the second medium inlet 150 and the second medium outlet 160 on the second surface 7. The arrangement of the first boss 170 and the second boss 180 ensures a seal between adjacent core plates 1. When the core plates 1 are stacked, the first boss 170 and the second boss 180 cooperate to form a sealed area, effectively preventing medium leakage. A first rib 610 extending along a first direction is provided on the first surface 6 of the core plate 1, and a second rib 710 extending along the first direction is provided on the second surface 7. The mutual contact of the first rib 610 and the second rib 710 further enhances the sealing effect between the core plates 1. There is a gap between the first rib 610 and the first edge 110, and a similar gap exists between the second rib 710 and the second edge 120. During medium flow, these gaps provide additional flow paths for the medium. When the medium enters the core plate 1 through the first medium inlet, the gap between the first rib 610 and the first side 110 allows the medium to form a bypass channel near the first side 110 in the first medium cavity. Similarly, the gap between the second rib 710 and the second side 120 also provides a bypass channel for the second medium cavity near the second side 120. The existence of these bypass channels effectively diverts the medium. The medium that originally flowed in the main channel is guided to different paths through the bypass channels. In this way, the medium is no longer concentrated in a certain area during flow, but is dispersed, reducing the resistance to medium flow, improving the flow efficiency of the medium, and enhancing the heat exchange performance.
[0035] Furthermore, such as Figure 1 As shown, the first rib 610 and the second rib 710 have the same geometry. The first rib 610 is located on the center line of the line connecting the first medium inlet hole 130 and the first medium outlet hole 140. The second rib 710 is located on the center line of the line connecting the second medium inlet hole 150 and the second medium outlet hole 160. The first rib 610 is used to seal and fit the second rib 710 on the adjacent core plate 1, and the second rib 710 is used to seal and fit the first rib 610 on the adjacent core plate 1.
[0036] This arrangement ensures that the first rib 610 and the second rib 710 are symmetrically distributed on the core plate 1. When the core plates 1 are stacked, the first rib 610 cooperates with the second rib 710 on the adjacent core plate 1, and the second rib 710 cooperates with the first rib 610 on the adjacent core plate 1, thus forming a sealing structure. Since the first rib 610 and the second rib 710 have the same geometric shape and are symmetrically positioned, they can fit tightly together, forming a good sealing structure. Furthermore, the symmetrical distribution of the ribs helps guide the flow of the medium within the core plate 1. The first rib 610 is located on the center line connecting the first medium inlet hole 130 and the first medium outlet hole 140, and the second rib 710 is located on the center line connecting the second medium inlet hole 150 and the second medium outlet hole 160. This allows the medium to flow along the central axis of the core plate 1 during flow, forming a stable flow path. Simultaneously, the cooperation of the first rib 610 and the second rib 710 enhances the connection strength between the core plates 1. When the core board 1 is stacked, the sealing and fitting effect of the ribs increases the friction between the core boards 1, thereby improving the structural stability of the core board 1.
[0037] As one possible implementation, such as Figure 1 As shown, one of the two adjacent core boards 1 has a plurality of protrusions 190 on its first surface 6, and the other core board 1 has a plurality of protrusions 190 on its second surface 7.
[0038] Specifically, in two adjacent core plates 1, one core plate 1 has multiple protrusions 190 on its first surface 6, and the other core plate 1 has multiple protrusions 190 on its second surface 7. These protrusions 190 are positioned in a corresponding relationship with each other. When the two core plates 1 are stacked, the protrusions 190 on the first surface 6 of the lower core plate 1 are in close contact with the protrusions 190 on the second surface 7 of the upper core plate 1. This arrangement increases the surface area of the core plates 1. When the core plates 1 are stacked, the protrusions 190 contact each other, increasing the contact area between the core plates 1. This means that the contact area between the medium and the core plates 1 is increased, thereby enhancing the heat exchange effect. Simultaneously, two different sized spaces are formed within different medium cavities, effectively enhancing the heat exchange effect. Furthermore, due to the close contact of the protrusions 190, many tiny channels are formed between the core plates 1. These channels increase the flow path of the medium between the core plates 1, making it easier for the medium to form turbulence on the surface of the core plates 1, and enabling the medium to exchange heat with the core plates 1 more fully.
[0039] As one possible implementation, such as Figure 1 As shown, the heat exchange core also includes fins 8, which are disposed on the first surface 6 of the core plate 1 having a protrusion 190 on the second surface 7 and fixed on the first surface 6 of the core plate 1.
[0040] Specifically, fins 8 are disposed on the first surface 6 of the core plate 1, which has protrusions 190 on the second surface 7. The first surface 6 of these core plates 1, i.e., the surface through which the medium flows, does not have protrusions 190. This structure results in a limited contact area between the first surface 6 and the medium during heat exchange, hindering sufficient heat transfer. Therefore, fins 8 are provided. The fins 8 not only increase the heat dissipation area of the core plate 1 but also alter the flow pattern of the medium. When the medium flows on the surface of the fins 8, the fins 8 guide the flow direction, resulting in a more uniform distribution of the medium on the surface of the core plate 1, which helps improve heat exchange efficiency. Simultaneously, the fins 8, fixed to the core plate 1, increase the structural strength of the heat exchange core to a certain extent.
[0041] As one possible implementation, such as Figure 1 As shown, the edge of the core board 1 is provided with a flange 9, and the flanges 9 of adjacent core boards 1 are overlapped and sealed to fix each other.
[0042] Specifically, when two adjacent core plates 1 are stacked and sealed, their flanges 9 overlap each other, forming a tight connection structure. This stacking method increases the contact area between the core plates 1, and through appropriate fixing methods, such as welding, a reliable seal is achieved at the edge, tightly binding the core plates 1 into a whole. This effectively prevents external factors from interfering with the internal heat exchange medium channels of the core plates 1, and also enhances the integrity and stability of the heat exchange core.
[0043] As one possible implementation, the heat exchange core also includes a top plate, which is fixedly connected to the outermost core plate 1 of the heat exchange core, and the top plate is used to seal the adjacent core plates 1.
[0044] Specifically, the top plate is located at the top of the heat exchange core and is directly fixedly connected to the outermost core plate 1 of the heat exchange core. This connection method can take various forms, such as welding, bolting, or riveting. The top plate is tightly integrated with the outermost core plate 1, thereby ensuring the structural stability and sealing of the entire heat exchange core.
[0045] Please refer to Figure 2 and Figure 3 The present invention provides a core plate 1, which has a first surface 6 and a second surface 7 opposite to each other. The core plate 1 includes a first bypass region 10, a first liquid inlet / outlet region 11, a main flow region 12, a second liquid inlet / outlet region 13 and a second bypass region 14 arranged sequentially along a first direction. The first liquid inlet / outlet region 11 includes a first medium inlet hole 130 and a first medium outlet hole 140. The second liquid inlet / outlet region 13 includes a second medium inlet hole 150 and a second medium outlet hole 160.
[0046] A first rib 610 extending along a first direction is provided on the first surface 6 of the core plate 1, and a second rib 710 extending along a first direction is provided on the second surface 7 of the core plate 1. The first rib 610 and the second rib 710 are arranged along the first direction, and the first rib 610 is located between the first medium inlet hole 130 and the first medium outlet hole 140, and the second rib 710 is located between the second medium inlet hole 150 and the second medium outlet hole 160.
[0047] A first boss 170 is provided around the first medium inlet hole 130 and the second medium outlet hole 160 on the first surface 6. A second boss 180 is provided around the second medium inlet hole 150 and the second medium outlet hole 160 on the second surface 7. The two opposite edges of the core plate 1 along the first direction are the first edge 110 and the second edge 120, respectively. The first edge 110 and the first liquid inlet / outlet area 11 are used to form a first bypass area 10, and the second edge 120 and the second liquid inlet / outlet area 13 are used to form a second bypass area 14.
[0048] Compared with the prior art, the beneficial effects of the core plate 1 provided by this utility model are the same as those of the specific implementation of the heat exchange core, and will not be repeated here.
[0049] As one possible implementation, such as Figure 1 As shown, a plurality of protrusions 190 are provided on the first surface 6 of the core plate 1. The provision of these protrusions 190 increases the surface area of the core plate 1, thereby enhancing the heat exchange effect.
[0050] This utility model also provides a heat exchanger, including any of the heat exchange cores mentioned in the above embodiments.
[0051] In the description of the above embodiments, specific features, structures, materials, or characteristics may be combined in any suitable manner in one or more embodiments or examples.
[0052] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.
Claims
1. A heat exchange core, characterized in that, The heat exchange core includes multiple stacked core plates, each core plate having a first side and a second side. Each core plate has a first medium inlet and a first medium outlet near the first side, and a second medium inlet and a second medium outlet near the second side. A medium cavity is formed between two adjacent core plates. One side of a core plate is a first medium cavity, and the other side is a second medium cavity. The first medium cavity and the second medium cavity are not connected. Multiple first medium cavities and multiple second medium cavities are arranged at intervals. The first medium cavity is connected to the first medium inlet and the first medium outlet, and the second medium cavity is connected to the second medium inlet and the second medium outlet; The first medium cavity includes a first U-shaped passage and a first bypass passage. The two ends of the first U-shaped passage are respectively connected to a first medium inlet and a first medium outlet. The two ends of the first bypass passage are respectively connected to the first medium inlet and the first medium outlet. The first bypass passage is located close to the first side. The second medium cavity includes a second U-shaped passage and a second bypass passage. The two ends of the second U-shaped passage are respectively connected to the second medium inlet and the second medium outlet. The two ends of the second bypass passage are respectively connected to the second medium inlet and the second medium outlet. The second bypass passage is located close to the second side.
2. The heat exchange core according to claim 1, characterized in that, The core plate has a first surface and a second surface facing each other. A first protrusion is provided around the first medium inlet and the first medium outlet on the first surface, and a second protrusion is provided around the second medium inlet and the second medium outlet on the second surface. The upper core plate is stacked with the lower core plate rotated 180 degrees relative to the lower core plate around an axis perpendicular to the plane of the core plate, and the second surface of the upper core plate and the first surface of the lower core plate are facing each other. The first surface of the core plate is provided with a first rib extending along a first direction for contacting the second surface of the adjacent core plate. The second surface of the core plate is provided with a second rib extending along the first direction for contacting the first surface of the adjacent core plate. The first rib and the second rib are arranged along the first direction, and the first rib is located between the first medium inlet and the first medium outlet, and the second rib is located between the second medium inlet and the second medium outlet. There is a gap between the first rib and the first side, and there is a gap between the second rib and the second side.
3. The heat exchange core according to claim 2, characterized in that, The first rib and the second rib have the same geometry. The first rib is located on the center line of the line connecting the first medium inlet and the first medium outlet. The second rib is located on the center line of the line connecting the second medium inlet and the second medium outlet. The first rib is used to seal and fit against the second rib on the adjacent core plate. The second rib is used to seal and fit against the first rib on the adjacent core plate.
4. The heat exchange core according to claim 1, characterized in that, One of the two adjacent core plates has a plurality of protrusions on its first surface, and the other core plate has a plurality of protrusions on its second surface.
5. The heat exchange core according to claim 4, characterized in that, The heat exchange core also includes fins, which are disposed on the first surface of the core plate having the protrusion on the second surface and fixed to the first surface of the core plate.
6. The heat exchange core according to claim 1, characterized in that, The core board has flanges at its edges, and the flanges of adjacent core boards overlap and seal each other.
7. The heat exchange core according to claim 1, characterized in that, The heat exchange core also includes a top plate, which is fixedly connected to the outermost core plate of the heat exchange core, and the top plate is used to seal adjacent core plates.
8. A heat exchanger, characterized in that, Includes the heat exchange core as described in any one of claims 1-7.