Core plate, core plate unit, heat exchange core body and heat exchanger
By setting bosses and extensions on the core board, the problem of lack of fin support between the chip edge and the channel opening is solved, which enhances the structural strength and stability of the heat exchanger and improves heat exchange efficiency and service life.
Patent Information
- Application Number
- CN202423261349.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-27
- Publication Date
- 2025-12-02
- Estimated Expiration
- 2034-12-27
AI Technical Summary
In plate heat exchangers, the area between the chip edge and the channel opening lacks fin support, resulting in reduced structural strength and affecting stability and service life.
A boss and an extension are provided on the core board. The boss fits tightly with the adjacent core board to form a support structure, which enhances the connection strength and sealing of the core board. The boss extends to the corner of the core board to disperse stress and prevent deformation.
This improves the structural strength and stability of the heat exchanger, extends its service life, and ensures the high efficiency and stability of the heat exchange process.
Smart Images
Figure CN223623447U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of heat exchange technology, specifically to a core plate, a core plate unit, a heat exchange core, and a heat exchanger. Background Technology
[0002] As plate heat exchanger design matures, optimizing heat exchange performance within a limited space has become a development trend. Under this trend, the inlet and outlet channels of the heat exchange medium are increasingly closer to the edge of the plate, reducing the area between the edge and the channel opening, and consequently, decreasing the fin area in this region. Furthermore, limitations in fin stamping technology mean that fins cannot be installed in the increasingly narrow space between the edge and the channel opening. This lack of fin support reduces structural strength, affecting the stability and lifespan of the plate heat exchanger. Utility Model Content
[0003] The purpose of this utility model is to provide a core plate, a core plate unit, a heat exchange core, and a heat exchanger to enhance the structural strength of the heat exchanger, thereby improving the stability of the heat exchanger and extending its service life.
[0004] To achieve the above objectives, this utility model provides the following technical solution:
[0005] In a first aspect, the present invention provides a core board having a first side and a second side facing each other. A first medium hole and a second medium hole are provided on the core board. A boss is provided around the first medium hole on the first side or the second side. The boss has an extension extending toward the edge of the core board. The boss and the extension are used to seal and support the corresponding parts of adjacent core boards.
[0006] Compared with the prior art, the core plate provided by this utility model has a first medium hole and a second medium hole as channels for medium flow. Around the first medium hole, there is a boss with an extension extending towards the edge of the core plate. This boss provides a support point for adjacent core plates, and the extension fills the support missing due to the narrow space between the boss and the edge of the core plate, which prevents the installation of fins. When multiple core plates are assembled into a heat exchange core, the bosses fit tightly with corresponding parts of adjacent core plates, achieving a sealing function and forming an effective support structure in a direction perpendicular to the plane of the core plate. This mutually fitting support structure can withstand the pressure from the upper core plate and the impact force generated by the flowing medium, thereby preventing excessive deformation or displacement of the core plate under these external forces. This enhances the internal structural strength of the heat exchanger and improves its stability and service life.
[0007] Optionally, in the core board described above, the extension of the boss extends to the corner of the core board.
[0008] Secondly, this utility model also provides a core board unit, comprising:
[0009] The first core board has a first surface and a second surface facing each other. A first medium hole and a second medium hole are formed on the first core board. A first boss is provided around the first medium hole on the second surface. The first boss has a first extension extending toward the edge of the first core board.
[0010] The second core board has a third and a fourth opposing surface. The second core board is stacked and sealed with the first core board, and the second and third surfaces are opposite to each other. The second core board has a first medium hole and a second medium hole. A second boss is provided around the first medium hole on the third surface. The second boss has a second extension extending toward the edge of the second core board. The first boss and the second boss are sealed and fixed together to seal the first medium hole connecting the first core board and the second core board.
[0011] Compared with the prior art, the core board unit provided by this utility model includes a first core board and a second core board; wherein, the first boss and the first extension extending toward the edge of the first medium hole on the first core board are sealed and fitted together with the second boss and the second extension on the second core board. The tight connection enhances the connection strength between the core boards, so that the entire core board unit can maintain a stable structure when subjected to external force, and avoids the heat exchange effect being affected by the loosening or displacement of the core board.
[0012] Optionally, in the core board unit described above, the first extension of the first boss extends to the corner of the first core board; and the second extension of the second boss extends to the corner of the second core board.
[0013] Optionally, in the core board unit described above, the edge of the second medium hole on the first surface is provided with an annular protrusion. The annular protrusion is used to abut against the fourth surface of the second core board sealed in the previous core board unit and to connect the second medium holes of the core board units of the two adjacent layers.
[0014] Optionally, in the core board unit described above, the edges of the first core board and the second core board are provided with flanges facing a first direction, and the flanges of the first core board and the second core board are overlapped and sealed to each other.
[0015] Optionally, in the core plate unit described above, the core plate unit further includes fins, which are located between the first core plate and the second core plate and fixed to the third surface of the second core plate.
[0016] Optionally, in the aforementioned core board unit, a plurality of protrusions are provided on the first surface of the first core board, and the plurality of protrusions abut against the fourth surface of the second core board of the previous core board unit.
[0017] Optionally, in the core board unit described above, the first medium hole includes a first medium inlet hole and a first medium outlet hole, and the first medium inlet hole and the first medium outlet hole are disposed on the same side near the first core board;
[0018] And / or, the second medium hole includes a second medium inlet hole and a second medium outlet hole, which are located on the same side of the first core board.
[0019] Thirdly, this utility model also provides a heat exchange core, including any of the aforementioned core plate units, multiple core plate units stacked and fixedly connected, a cold medium cavity is formed between the first core plate and the second core plate of the same core plate unit, and the cold medium cavity is connected through a second medium hole; a heat medium cavity is formed between the first surface of the first core plate of the lower core plate unit and the fourth surface of the second core plate of the upper core plate unit, and the heat medium cavity is connected through a first medium hole.
[0020] Compared with the prior art, the beneficial effects of the heat exchange core provided by this utility model are the same as those of the core plate and core plate unit mentioned above, and will not be repeated here.
[0021] Optionally, in the heat exchange core described above, the heat exchange core further includes a top plate, which is fixedly connected to the outermost first core plate of the heat exchange core. The top plate is used to seal the first medium hole and the second medium hole.
[0022] Fourthly, this utility model also provides a heat exchanger, including any of the heat exchange cores mentioned above.
[0023] Compared with the prior art, the beneficial effects of the heat exchanger provided by this utility model are the same as those of the core plate mentioned above, and will not be repeated here. Attached Figure Description
[0024] 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:
[0025] Figure 1 This is a schematic diagram of the first side structure of a first core board provided in an embodiment of the present utility model;
[0026] Figure 2 This is a schematic diagram of the second side structure of a first core board provided in an embodiment of this utility model;
[0027] Figure 3 This is a schematic diagram of the structure of a second core board provided in an embodiment of this utility model;
[0028] Figure 4 This is an exploded cross-sectional view of a core board unit provided in an embodiment of the present utility model;
[0029] Figure 5 This is a schematic cross-sectional view of a core board unit provided in an embodiment of the present utility model;
[0030] Figure 6 This is a schematic cross-sectional view of the fin mating of a core board unit provided in an embodiment of the present utility model.
[0031] Reference numerals in the attached figures: 1 is the first core plate, 110 is the first surface, 120 is the second surface, 130 is the first medium hole, 140 is the second medium hole, 150 is the first boss, 151 is the first extension, 160 is the annular protrusion, 170 is the protrusion, 2 is the second core plate, 210 is the third surface, 220 is the fourth surface, 230 is the second boss, 231 is the second extension, 3 is the flange, 4 is the fin, and 5 is the core plate unit. Detailed Implementation
[0032] 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.
[0033] 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.
[0034] 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.
[0035] 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.
[0036] 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.
[0037] Please see Figure 1 and Figure 2 The core board provided by this utility model has a first surface 110 and a second surface 120 opposite to each other. A first medium hole 130 and a second medium hole 140 are provided on the core board. A boss is provided around the first medium hole 130 on the first surface 110 or the second surface 120. The boss has an extension extending toward the edge of the core board. The boss and the extension are used to seal and support the corresponding parts of the adjacent core board.
[0038] In practical implementation: When assembling multiple core plates into a heat exchange core, the boss on one core plate fits tightly with the corresponding part on the adjacent core plate. In this way, the setting of the boss and extension increases the contact support area between adjacent core plates. The extension fills the support missing due to the narrow space between the boss and the edge of the core plate, which makes it impossible to set fins. When the core plate is subjected to external pressure, due to the presence of the boss and extension, the pressure can be evenly distributed on a larger contact surface, reducing stress concentration. At the same time, the boss and extension, as part of the core plate structure, have a certain height and strength. The support structure formed by their mutual contact can withstand the pressure from the upper core plate and the impact force generated by the medium during flow, thereby preventing the core plate from undergoing excessive deformation or displacement under these external forces. This enhances the internal structural strength of the heat exchanger and improves the stability and service life of the heat exchanger.
[0039] As one possible implementation, such as Figure 2 As shown, the extension of the boss extends to the corner of the core board.
[0040] Specifically, the boss surrounds the first medium hole 130 of the core plate and has an extension extending towards the edge of the core plate, which further extends to the corner of the core plate. During the operation of the heat exchanger, it may be subjected to pressure from different directions. When the boss extends to the corner of the core plate, it provides direct support and reinforcement to the corner, enabling it to better withstand these external forces and reducing the possibility of deformation of the corner due to stress, thereby enhancing the overall structural stability of the core plate. When external forces are applied to the core plate, the structure of the boss extending to the corner can guide the stress distribution along the boss and transfer the stress that may be concentrated at the corner. The stress is dispersed to relatively strong parts such as around the first medium hole 130 by the boss, avoiding stress concentration at the corner, effectively preventing material fatigue and damage caused by stress concentration, and improving the service life and structural strength of the heat exchanger.
[0041] Please refer to Figure 4 The core board unit 5 provided by this utility model includes a first core board 1 and a second core board 2; wherein, the first core board 1 has a first surface 110 and a second surface 120 opposite to each other, a first medium hole 130 and a second medium hole 140 are formed on the first core board 1, and a first boss 150 is provided around the first medium hole 130 on the second surface 120, the first boss 150 having a first extension portion 151 extending toward the edge of the first core board 1; the second core board 2 has a third surface 210 and a fourth surface 220 opposite to each other, the second core board 2... Plate 2 and the first core plate 1 are stacked and sealed together, and the second surface 120 and the third surface 210 are opposite to each other. The second core plate 2 has a first medium hole 130 and a second medium hole 140. The first medium hole 130 on the third surface 210 is surrounded by a second boss 230. The second boss 230 has a second extension 231 extending toward the edge of the second core plate 2. The first boss 150 and the second boss 230 are sealed and fixed together to seal the first medium hole 130 connecting the first core plate 1 and the second core plate 2.
[0042] In specific implementation, the heat exchange medium flows into the first medium inlet hole of the first core plate 1 from one end of the heat exchanger as the main flow. Because the first protrusion 150 and its first extension 151 extending towards the edge around the first medium hole 130 on the first core plate 1 are sealed and fitted together with the second protrusion 230 and the second extension 231 on the second core plate 2, the medium can effectively pass through the first medium hole 130 of the second core plate 2 and enter the adjacent second core plate 2 without leakage. The first protrusion 150 on the first core plate 1 and the corresponding second protrusion 230 on the second core plate 2 are sealed and fixed together. This tight connection not only provides a stable and sealed channel for the flow of the medium between adjacent core plates, preventing leakage and ensuring the high efficiency and stability of the heat exchange process, but also enhances the connection strength between the core plates. This allows the entire core plate unit 5 to maintain a stable structure when subjected to the pressure and impact generated by the medium flow, avoiding the impact of core plate loosening or displacement on the heat exchange effect. Then, the medium continues to flow forward along the first medium hole 130 of the stacked first core plate 1 and second core plate 2 until it reaches the other end of the heat exchanger. During this process, since there is also a medium flow path on the first core plate 1 of each layer, the medium flows from the first medium inlet to the first medium outlet under the influence of pressure difference, flow guiding structure, or other factors on the plane of the first core plate 1 of each layer, so as to realize heat exchange and transfer. Subsequently, the medium in the first medium outlets of multiple layers is collected and merged into a single flow in the opposite direction to the total flow of the medium initially input from one end of the heat exchanger. Finally, it flows out again at the starting end of the heat exchanger, completing the entire heat exchange process. Throughout the heat exchange process, the boss structure fully plays its role in sealing and supporting, enhancing the internal structural strength of the heat exchanger, thereby improving the performance and reliability of the heat exchanger.
[0043] As one possible implementation, such as Figure 1 and Figure 5 As shown, in the core board unit 5, a first boss 150 is provided on the second surface 120 of the first core board 1 around the first medium hole 130, which has a first extension 151 extending towards the edge of the first core board 1, and the first extension 151 extends all the way to the corner of the first core board 1. Similarly, a second boss 230 is provided on the third surface 210 of the second core board 2 around the first medium hole 130, and its second extension 231 also extends to the corner of the second core board 2.
[0044] With this configuration, when the first core plate 1 and the second core plate 2 are stacked and sealed, the first boss 150 and the second boss 230 are mutually sealed and fixed, enabling the first medium hole 130 to achieve sealed communication. Furthermore, the extensions of the first boss 150 and the second boss 230 are also tightly fitted at the corners. During the operation of the heat exchanger, it may be subjected to pressure from different directions. When the extension of the boss reaches the corner of the core plate, it provides direct support and reinforcement to the corner, enabling it to better withstand these external forces and reducing the possibility of deformation at the corner due to stress, thereby enhancing the overall structural stability of the core plate. When external forces act on the first core plate 1 or the second core plate 2, the structure of the boss extending to the corner can guide the stress distribution along the boss and transmit stress that may be concentrated at the corner. The stress is dispersed to relatively strong areas such as around the first medium hole 130 through the boss, avoiding stress concentration at the corner, effectively preventing material fatigue and damage caused by stress concentration, and improving the service life and structural strength of the heat exchanger.
[0045] As one possible implementation, such as Figure 4 As shown, the edge of the second medium hole 140 on the first surface 110 is provided with an annular protrusion 160. The annular protrusion 160 is used to abut against the fourth surface 220 of the second core plate 2 sealed to the upper core plate unit 5, and to connect the second medium hole 140 of the core plate units 5 of the two adjacent layers.
[0046] The design of the annular protrusion 160 guides another medium used for heat exchange to the adjacent layer of the aforementioned medium. The annular protrusion 160 abuts against the fourth surface 220 of the second core plate 2 of the upper core plate unit 5, effectively enhancing the seal between adjacent core plate units 5. It also effectively guides the flow of the other medium. Through the second medium hole 140 connecting the two adjacent core plate units 5, the sealing and guiding effect of the annular protrusion 160 allows the heat exchange medium to flow on the second core plate 2 within each core plate unit 5. Specifically, the second medium first enters through the second medium hole 140 on the first core plate 1 of the first core plate unit 5 located at one end of the heat exchanger. Then, the medium continues to flow forward along the second medium holes 140 of the stacked first core plate 1 and second core plate 2 until it reaches the other end of the heat exchanger. During this process, since there is also a medium flow path on the second core plate 2 of each layer (because the annular protrusion 160 blocks the path for the second medium to flow into the first core plate 1, the second medium only flows on the second core plate 2), on the plane of the second core plate 2 of each layer, the medium flows from the second medium inlet to the second medium outlet under the action of pressure difference, flow guiding structure or other factors. As the medium flows sequentially between the second medium holes 140 of each core plate unit 5, it gradually diffuses within the entire heat exchanger and exchanges heat with another heat exchange medium (the medium flowing through the first medium hole 130). Finally, after the heat exchange process of the multiple core plate units 5, the medium flows out from the second medium hole 140 of the last core plate unit 5 located at the other end of the heat exchanger, completing the entire heat exchange cycle. In this process, the annular protrusion 160 not only ensures that the medium can flow accurately from the second medium hole 140 of the first layer core plate unit 5 into the second medium hole 140 of the adjacent upper core plate unit 5, but also ensures that the medium flows along the predetermined path through its sealing effect, avoiding leakage and disorderly diffusion, thereby realizing an efficient and stable heat exchange process, enabling the heat exchanger to give full play to its heat exchange function and meet the heat transfer needs in various practical application scenarios.
[0047] As one possible implementation, such as Figure 1 and Figure 3 As shown, the edges of the first core board 1 and the second core board 2 are provided with flanges 3 facing the first direction, and the flanges 3 of the first core board 1 and the second core board 2 are overlapped and sealed to each other.
[0048] In the core board unit 5, the edge of the first core board 1 is provided with a flange 3 facing a specific first direction, and similarly, the edge of the second core board 2 also has a flange 3 facing the same first direction. When the first core board 1 and the second core board 2 are stacked and sealed, their flanges 3 overlap each other, forming a tight connection structure. This overlapping method increases the contact area between the flanges 3, and through a suitable fixing connection method, such as welding, a reliable sealing and fixing is achieved at the edge position, tightly combining the first core board 1 and the second core board 2 into a whole. This effectively prevents external factors from interfering with the heat exchange medium channel inside the core board, and also enhances the integrity and stability of the core board unit 5.
[0049] As one possible implementation, such as Figure 6 As shown, the core plate unit 5 also includes fins 4, which are located between the first core plate 1 and the second core plate 2 and are fixed on the third surface 210 of the second core plate 2.
[0050] Fins 4 are located between the first core plate 1 and the second core plate 2, increasing the surface area for heat exchange. During heat exchange, heat transfer is closely related to the contact area. The presence of fins 4 allows the heat exchange medium to come into contact with more surfaces as it flows through the core plate unit 5. This enables heat to be transferred more efficiently from one medium to another, significantly improving heat exchange efficiency. Simultaneously, fins 4 are fixed to the third surface 210 of the second core plate 2, increasing the structural strength of the core plate unit 5 to some extent. As a supporting structure, fins 4 resist external pressure and vibration that the core plate may experience during operation, reducing the risk of core plate deformation, thereby enhancing the structural stability of the core plate unit 5 and extending the service life of the heat exchanger.
[0051] As one possible implementation, such as Figure 4 As shown, a plurality of protrusions 170 are provided on the first surface 110 of the first core board 1, and the plurality of protrusions 170 abut against the fourth surface 220 of the second core board 2 of the previous core board unit 5.
[0052] Specifically, multiple protrusions 170 are distributed on the first surface 110 of the first core plate 1 of the core plate unit 5. When multiple core plate units 5 are stacked and assembled, these protrusions 170 are in close contact with and abut against the fourth surface 220 of the second core plate 2 of the previous core plate unit 5. This design not only connects and seals adjacent core plate units 5 through structures such as bosses and flanges 3, but also adds contact points between the protrusions 170 and the fourth surface 220 of the second core plate 2. This provides additional support and positioning in the direction perpendicular to the core plate plane, further enhancing the integrity and stability of the stacked structure of the core plate units 5, ensuring accurate and fixed relative positions between adjacent core plate units 5, and providing a reliable structural foundation for the stable operation of the heat exchange process. Furthermore, the presence of the protrusions 170 can improve the flow distribution of the heat exchange medium on the surface of the core plate. When the heat exchange medium flows between the core plates, the flow path becomes more complex and uniform due to the blocking and guiding effect of the protrusions 170, avoiding the phenomenon of excessively fast or slow flow rates in local areas. This allows heat to be transferred and exchanged more evenly on the surface of the core plates, improving the uniformity and stability of heat exchange.
[0053] As one possible implementation, such as Figure 1 and Figure 3 As shown, the first medium hole 130 includes a first medium inlet hole and a first medium outlet hole, which are disposed on the same side of the first core plate 1; and / or, the second medium hole 140 includes a second medium inlet hole and a second medium outlet hole, which are disposed on the same side of the first core plate 1.
[0054] Specifically, the first medium hole 130 is divided into a first medium inlet hole and a first medium outlet hole. These two holes are designed to be located close to the same side of the core plate. When the medium enters the heat exchanger from an external pipe, this design, with the inlet and outlet holes on the same side of the core plate, facilitates a more rational flow path. This rational flow reduces turbulent flow of the medium inside the core plate, lowers flow resistance, and allows the medium to complete the heat exchange process and flow out more quickly, thereby improving heat exchange efficiency.
[0055] Please refer to Figure 4 This utility model provides a heat exchange core comprising multiple core plate units 5 as described above. The multiple core plate units 5 are stacked and fixedly connected. A cold medium cavity is formed between the first core plate 1 and the second core plate 2 of the same core plate unit 5, and the cold medium cavity is connected through a second medium hole 140. A heat medium cavity is formed between the first surface 110 of the first core plate 1 of the lower core plate unit 5 and the fourth surface 220 of the second core plate 2 of the upper core plate unit 5, and the heat medium cavity is connected through a first medium hole 130.
[0056] Specifically, the heat exchange core is composed of multiple core plate units 5. These core plate units 5 are stacked sequentially and fixedly connected by appropriate methods (such as welding or riveting) to form a complete heat exchange core structure. Within the same core plate unit 5, a cold medium cavity is formed between the first core plate 1 and the second core plate 2. This cold medium cavity is connected through a second medium inlet 140. The cold medium can enter the cold medium cavity through the second medium inlet, flow within the cavity, and exchange heat with the fins 4 or the core plate surface, then flow out through the second medium outlet. Due to the presence of multiple core plate units 5, the cold medium can flow sequentially through the cold medium cavity of each core plate unit 5, forming a continuous cold medium flow path. When multiple core plate units 5 are stacked, a heat medium cavity is formed between the first surface 110 of the first core plate 1 of the lower core plate unit 5 and the fourth surface 220 of the second core plate 2 of the upper core plate unit 5. The heat medium cavity is connected through the first medium inlet 130. The heat medium enters the heat medium cavity through the first medium inlet and flows inside the heat medium cavity. During the flow, it exchanges heat with the cold medium in the cold medium cavity and finally flows out through the first medium outlet. In this way, the heat medium can flow sequentially in the heat medium cavities between adjacent core plate units 5, forming a continuous heat medium flow path.
[0057] When cold and hot media are introduced into the heat exchange core: the cold media enters through the second media inlet hole of the first core plate unit 5 located at one end of the heat exchanger, and enters the cold media cavity of that core plate unit 5. The cold media cavity is formed by the space between the first core plate 1 and the second core plate 2 of the same core plate unit 5. The flow of the cold media in the cavity is affected by the shape of the core plate and the second media hole 140. Since the second media hole 140 connects the cold media cavities of each core plate unit 5, the cold media flows through the cold media cavity of each core plate unit 5 in sequence, continuously exchanging heat during the flow, and finally flows out from the second media outlet hole of the last core plate unit 5 located at the other end of the heat exchanger. That is, the entire flow channel is a continuous channel consisting of multiple cold media cavities connected in series through the second media hole 140. The cold media flows in this path, thereby absorbing heat from the hot media; the hot media enters through the first media inlet hole at the corresponding position of the heat exchanger, and enters the hot media cavity formed between the first surface 110 of the first core plate 1 of the lower core plate unit 5 and the fourth surface 220 of the second core plate 2 of the upper core plate unit 5. The hot medium chambers are interconnected through the first medium hole 130. When the hot medium flows within these chambers, it exchanges heat with the cold medium in the adjacent cold medium chambers. The hot medium flows sequentially between the hot medium chambers in different layers, entering the next hot medium chamber through the first medium hole 130, and finally exiting the heat exchanger through the first medium outlet hole. The flow channel of the hot medium is also a continuous channel consisting of multiple hot medium chambers connected in series through the first medium hole 130. During this process, the heat of the hot medium is absorbed or transferred to the cold medium, achieving the purpose of heat exchange.
[0058] This configuration separates the flow channels for the cold and hot media through the structure and stacking of the core plate unit 5, forming independent yet alternately adjacent cold and hot media chambers. The two media flow within their respective chambers, achieving efficient heat exchange through the core plate and the internal structures of the chambers, while simultaneously ensuring that the two media do not mix, thus guaranteeing the stability of the heat exchange process. This structural design fully utilizes the various structural features of the core plate unit 5 to improve heat exchange efficiency.
[0059] As one possible implementation, the heat exchange core also includes a top plate, which is fixedly connected to the outermost first core plate 1 of the heat exchange core. The top plate is used to seal the first medium hole 130 and the second medium hole 140.
[0060] Specifically, the top plate is located at the top of the heat exchange core and is directly fixedly connected to the outermost first 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 first core plate 1, thereby ensuring the structural stability and sealing of the entire heat exchange core.
[0061] This utility model also provides a heat exchanger, including any of the heat exchange cores mentioned in the above embodiments.
[0062] 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.
[0063] 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 core board, characterized in that, The core board has a first surface and a second surface facing each other. A first medium hole and a second medium hole are formed on the core board. A boss is provided around the first medium hole on the first surface or the second surface. The boss has an extension extending toward the edge of the core board. The boss and the extension are used to seal and support the corresponding parts of the adjacent core board.
2. The core board according to claim 1, characterized in that, The extension of the boss extends to the corner of the core plate.
3. A core board unit, characterized in that, include: A first core board has a first surface and a second surface facing each other. A first medium hole and a second medium hole are formed on the first core board. A first boss is provided around the first medium hole on the second surface. The first boss has a first extension extending toward the edge of the first core board. The second core board has a third and a fourth opposing surface. The second core board is stacked and sealed with the first core board, and the second surface is opposite to the third surface. The second core board has a first medium hole and a second medium hole. A second boss is provided around the first medium hole on the third surface. The second boss has a second extension extending toward the edge of the second core board. The first boss and the second boss are sealed and fixed together to seal the first medium hole connecting the first core board and the second core board.
4. The core board unit according to claim 3, characterized in that, The first extension of the first boss extends to the corner of the first core plate; the second extension of the second boss extends to the corner of the second core plate.
5. The core board unit according to claim 3, characterized in that, An annular protrusion is provided on the edge of the second medium hole on the first surface. The annular protrusion is used to abut against the fourth surface of the second core plate of the previous core plate unit and to connect the second medium hole of the core plate units of the two adjacent layers.
6. The core board unit according to claim 3, characterized in that, The edges of the first core board and the second core board are provided with flanges facing a first direction, and the flanges of the first core board and the second core board are overlapped and sealed to each other.
7. The core board unit according to claim 3, characterized in that, The core plate unit further includes fins, which are located between the first core plate and the second core plate and are fixed to the third surface of the second core plate.
8. The core board unit according to claim 3, characterized in that, The first core board has a plurality of protrusions on its first surface, and the plurality of protrusions abut against and are fixed to the fourth surface of the second core board of the previous core board unit.
9. The core board unit according to claim 3, characterized in that, The first medium hole includes a first medium inlet hole and a first medium outlet hole, and the first medium inlet hole and the first medium outlet hole are disposed on the same side near the first core plate; And / or, the second medium hole includes a second medium inlet hole and a second medium outlet hole, the second medium inlet hole and the second medium outlet hole being disposed on the same side near the first core plate.
10. A heat exchange core, characterized in that, The device includes multiple core board units as described in any one of claims 3-9, wherein the multiple core board units are stacked and fixedly connected, a cold medium cavity is formed between the first core board and the second core board of the same core board unit, and the cold medium cavity is connected through the second medium hole; a hot medium cavity is formed between the first surface of the first core board of the lower core board unit and the fourth surface of the second core board of the upper core board unit, and the hot medium cavity is connected through the first medium hole.
11. The heat exchange core according to claim 10, characterized in that, The heat exchange core also includes a top plate, which is fixedly connected to the first core plate of the outermost layer of the heat exchange core. The top plate is used to seal the first medium hole and the second medium hole.
12. A heat exchanger, characterized in that, Includes the heat exchange core as described in any one of claims 10-11.