Heat exchanger
By introducing a baffle structure into the heat exchanger, the problem of airflow directly passing through the gap between the fins and the manifold is solved, which improves heat exchange efficiency and reduces noise, achieving a more efficient heat exchange effect.
Patent Information
- Application Number
- CN202520166357.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-23
- Publication Date
- 2025-12-30
- Estimated Expiration
- 2035-01-23
AI Technical Summary
In existing heat exchangers, the gap between the fins and the manifold allows airflow to pass directly through, affecting heat exchange efficiency, and it is necessary to improve the heat exchange efficiency.
A baffle structure is introduced into the heat exchanger. The baffle structure extends from the manifold toward the fins, covering the gap between the manifold and the fins, guiding the airflow to the heat exchange module for full heat exchange and increasing the airflow contact area.
By designing a windbreak structure, airflow cannot pass directly through the gap between the manifold and the fins, which improves heat exchange efficiency, reduces noise, promotes full contact between airflow and heat exchange module, and enhances heat exchange effect.
Smart Images
Figure CN223740898U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of air conditioning technology, and in particular to a heat exchanger. Background Technology
[0002] A heat exchanger consists of heat exchange tubes, manifolds, fins, and a fan. The manifolds connect multiple heat exchange tubes, distributing fluid to each tube or aggregating fluid output from multiple tubes for unified output. The fan generates airflow, which flows through the heat exchange tubes for heat exchange. The heat exchange tubes are embedded in the fins, which increase the heat exchange area and improve efficiency.
[0003] However, in the existing technology, there is a gap between the fins and the manifold, and the airflow passes directly between the manifold and the fins, which affects the heat exchange efficiency, and the heat exchange efficiency needs to be further improved. Utility Model Content
[0004] Therefore, it is necessary to provide a heat exchanger to improve heat exchange efficiency.
[0005] A heat exchanger includes a heat exchange module, a manifold, and a baffle structure. The heat exchange module includes a plurality of spaced-apart heat exchange tubes and a plurality of spaced-apart fins, with each fin having a plurality of heat exchange tubes inserted into it. The heat exchange module has a windward side along a first direction. The manifold has a plurality of connection holes, each connection hole being connected to a corresponding heat exchange tube, and a gap exists between the manifold and the fins. The baffle structure is located on the windward side, extending from the manifold toward the fins and reaching the heat exchange module. The projection of the baffle structure along the first direction onto the plane of the windward side of the heat exchange module covers the gap.
[0006] Understandably, the manifold gathers and concentrates the fluid before distributing it to multiple heat exchange tubes within the heat exchange module. The fluid's heat dissipates outward through the heat exchange tubes and fins, exchanging heat with the external environment. The fins increase the contact area with the airflow, improving the heat exchange efficiency of the heat exchange module. Furthermore, the baffle structure blocks the gap between the manifold and the fins, allowing airflow that would otherwise pass directly between them to reach the heat exchange module, increasing the airflow in contact with the module and further enhancing its heat exchange efficiency.
[0007] In one embodiment, the windbreak structure is tangent to the outer wall of the manifold.
[0008] In one embodiment, the windbreak structure includes a flow guide section that extends obliquely from the manifold toward the heat exchange module.
[0009] In one embodiment, the windbreak structure includes a stop section connected to the flow-in section, the stop section being angled to the flow-in section; along the first direction, the projection of the stop section onto the plane of the windward side covers at least a portion of the space of the manifold and the side of the manifold away from the heat exchange module.
[0010] In one embodiment, the included angle α between the drainage section and the stop section ranges from 120° to 150°.
[0011] In one embodiment, the heat exchanger has a housing, the heat exchange module is assembled inside the housing, and the stop section is bent to form a first connecting portion connected to the housing.
[0012] In one embodiment, along the first direction, the surface of the manifold facing the windward side is located in front of the surface of the heat exchange module facing the windward side, and the stop section is correspondingly disposed in front of the guide section; or, along the first direction, the surface of the heat exchange module facing the windward side is located in front of the surface of the manifold facing the windward side, and the stop section is correspondingly disposed in rear of the guide section.
[0013] In one embodiment, the windbreak structure further includes a support section connected between the heat exchange module and the flow diversion section.
[0014] In one embodiment, the support section includes a support portion and a second connecting portion connected to the support portion. The support portion and the second connecting portion are arranged at an angle. The support portion is provided with a plurality of heat exchange tubes. The second connecting portion is connected to one end of the flow-draining section away from the stop section.
[0015] In one embodiment, the windbreak structure includes a seal; the seal is pressed between the drainage section and the second connecting portion along the first direction; and / or, the windbreak structure further includes a locking member that passes through the drainage section and locks the drainage section and the second connecting portion, and the seal is pressed between the drainage section and the locking member. Attached Figure Description
[0016] To more clearly illustrate the technical solutions in the embodiments of this application or the conventional technology, the drawings used in the description of the embodiments or the conventional technology will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0017] Figure 1 This is a schematic diagram of the heat exchanger structure provided in this application;
[0018] Figure 2 A top view of one embodiment of the heat exchanger provided in this application;
[0019] Figure 3 A top view of another embodiment of the heat exchanger provided in this application.
[0020] Reference numerals: 100, heat exchanger; 10, heat exchange module; 11, heat exchange tube; 101, windward side; 20, manifold; 30, windbreak structure; 31, flow guide section; 32, stop section; 321, first connecting part; 33, support section; 331, support part; 332, second connecting part. Detailed Implementation
[0021] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.
[0022] It should be noted that when a component is referred to as being "fixed to," "set on," or "properly placed on" another component, it can be directly on the other component or there may be an intermediate component. When a component is considered to be "connected to" another component, it can be directly connected to the other component or there may be an intermediate component present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application's specification are for illustrative purposes only and do not represent the only possible implementation.
[0023] 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 technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.
[0024] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature and the second feature are in indirect contact through an intermediate medium. Furthermore, "above," "over," and "on top" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.
[0025] Unless otherwise defined, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in this application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and / or" as used in this application includes any and all combinations of one or more of the associated listed items.
[0026] Please see Figures 1 to 3 This application provides a heat exchanger 100, which includes a heat exchange module 10 and a manifold 20. The heat exchange module 10 includes a plurality of spaced-apart heat exchange tubes 11 and a plurality of spaced-apart fins, with each fin having a plurality of heat exchange tubes 11 inserted through it. Along a first direction, the heat exchange module 10 has an airflow side 101, from which airflow blows towards the heat exchange module 10. The manifold 20 is provided with a plurality of connection holes, each connection hole being connected to a corresponding heat exchange tube 11. The manifold 20 can distribute fluid to the plurality of heat exchange tubes 11, and the fluid exchanges heat with the airflow through the heat exchange tubes 11. The fins can increase the heat exchange area and improve the heat exchange efficiency.
[0027] Furthermore, after the heat exchange tube 11 passes through the fins, the end of the heat exchange tube 11 needs to be welded to the manifold 20. Therefore, there is a gap between the manifold 20 and the fins to facilitate the welding operation and provide sufficient space for welding. However, this will cause the airflow to pass directly through the gap, resulting in poor heat exchange efficiency. Therefore, the heat exchanger 100 also includes a baffle structure 30, which is located on the windward side 101. The baffle structure 30 extends from the manifold 20 toward the fins and extends to contact and connect with the heat exchange module 10. The projection of the baffle structure 30 along the first direction on the plane where the windward side 101 of the heat exchange module 10 is located covers the gap to block the airflow, preventing the airflow from passing directly through the gap between the manifold 20 and the fins. The airflow flows along the surface of the baffle structure 30 and can be guided to the heat exchange module 10, promoting sufficient heat exchange between this part of the airflow and the heat exchange module 10, which is beneficial to improving the heat exchange efficiency. In addition, sealing the gap between the manifold 20 and the fins can also reduce vibration and noise.
[0028] In summary, by setting up the windbreak structure 30, the airflow can be blocked, preventing the airflow from passing directly between the manifold 20 and the fins, and guiding the airflow to the heat exchange module 10 to fully exchange heat with the heat exchange tube 11 and the fins, thereby improving the heat exchange efficiency.
[0029] In a specific embodiment, the windshield structure 30 is made of lightweight, high-strength, and wear-resistant materials to ensure stable performance during long-term use. For example, the windshield structure 30 is made of materials such as aluminum alloy and titanium alloy.
[0030] In a specific embodiment, the heat exchanger 100 includes a fan, and the airflow produced by the fan flows from the windward side 101 to the heat exchange module 10 to achieve contact heat exchange between the airflow and the heat exchange module 10.
[0031] like Figures 1 to 3 As shown, in an optional embodiment, the windbreak structure 30 includes a flow guide section 31 that extends obliquely from the manifold 20 toward the heat exchange module 10 to form an oblique surface. This guides the airflow along the oblique surface to the heat exchange module 10, allowing the blocked airflow to be used for heat exchange with the heat exchange module 10, promoting full utilization of the airflow and improving the heat exchange efficiency of the heat exchange module 10.
[0032] like Figures 1 to 3 As shown, in a further embodiment, the windbreak structure 30 includes a stop section 32 connected to the guide section 31, the stop section 32 being angled to the guide section 31; along the first direction, the projection of the stop section 32 on the plane of the windward side 101 covers at least a portion of the space of the manifold 20 and the side of the manifold 20 away from the heat exchange module 10, so as to form a stop on the airflow of the manifold 20 and the side of the manifold 20 away from the heat exchange module 10. After the airflow is stopped, its speed and direction change, thereby causing disturbance and forming a vortex, which flows to the heat exchange module 10 under the guidance of the guide section 31. The formation of the vortex enables the airflow to contact the heat exchange module 10 more fully and exchange heat, thereby improving the heat exchange efficiency.
[0033] In a specific embodiment, the guide section 31 and the stop section 32 are integrally formed, which facilitates processing and assembly, and can also form a smooth surface facing the airflow, which is conducive to the smooth flow of airflow.
[0034] In a specific embodiment, the connection between the drainage section 31 and the stop section 32 is smoothly transitioned to form a smooth corner, which promotes the smooth flow of fluid along the smooth surface to the drainage section 31.
[0035] In a further embodiment, the windbreak structure 30 is tangent to the outer wall of the manifold 20 so as to contact the manifold 20, thereby forming a contact fulcrum between the windbreak structure 30 and the manifold 20. The manifold 20 provides a certain support for the windbreak structure 30, which facilitates the positioning and assembly of the windbreak structure 30.
[0036] like Figure 2 and Figure 3 As shown, in a specific embodiment, the included angle α between the drainage section 31 and the stop section 32 ranges from 120° to 150°. This allows the drainage section 31 to form a suitably inclined slope relative to the stop section 32, thus achieving sufficient drainage. If the included angle is too large, the inclination of the drainage section 31 may be too small, resulting in insufficient drainage; if the included angle is too small, the inclination of the drainage section 31 may be too large, leading to an excessively large corner at the connection between the drainage section 31 and the stop section 32, preventing the fluid from flowing sufficiently along the surface of the drainage section 31 due to its inertia. For example, α = 120°, 130°, or 150°.
[0037] like Figure 2 As shown, in one embodiment, along the first direction, the surface of the manifold 20 facing the windward side 101 is located in front of the surface of the heat exchange module 10 facing the windward side 101, and the stop section 32 is correspondingly arranged in front of the guide section 31. The airflow first contacts the stop section 32, and under the obstruction of the stop section 32, the airflow changes direction, forms a vortex, and flows along the guide section 31 to the heat exchange module 10 to complete the heat exchange.
[0038] like Figure 3 As shown, in another embodiment, along the first direction, the surface of the heat exchange module 10 facing the windward side 101 is located in front of the surface of the manifold 20 facing the windward side 101, and the stop section 32 is correspondingly disposed behind the guide section 31. Thus, the airflow is confined to contact with the guide section 31 and flows to the heat exchange module 10 in accordance with the inclined direction of the guide section 31. The airflow that subsequently contacts the stop section 32 is blocked by the stop section 32, changing its flow direction, forming a vortex, and flows in accordance with the inclined direction of the guide section 31.
[0039] In a further embodiment, the heat exchanger 100 is provided with a shell, the heat exchange module 10 is assembled inside the shell, and the stop section 32 is bent to form a first connecting part 321 to connect with the shell, so as to fix one end of the windproof structure 30, which is simple in structure.
[0040] like Figures 1 to 3 As shown, in a further embodiment, the windbreak structure 30 also includes a support section 33, which is connected between the heat exchange module 10 and the flow diversion section 31. Thus, the windbreak structure 30 is fixed to the heat exchange module 10 via the support end, facilitating the positioning and assembly of the windbreak structure 30.
[0041] like Figures 1 to 3 As shown, in an optional embodiment, the support section 33 includes a support portion 331 and a second connecting portion 332 connected to the support portion 331. The support portion 331 and the second connecting portion 332 are set at an angle. The support portion 331 is provided with a plurality of heat exchange tubes 11 to form a limiting fixation with the heat exchange tubes 11. The second connecting portion 332 is connected to the end of the flow guide section 31 away from the stop section 32. In this way, the windproof structure 30 is fixed relative to the heat exchange module 10 through the support section 33.
[0042] By setting the support section 33, the first connecting part 321, and the windbreak structure 30 tangent to the manifold 20, effective support is formed at three positions, enabling reliable assembly of the windbreak structure 30. Even after long-term operation, it can remain stable and not easily fall off, reducing maintenance costs.
[0043] In a specific embodiment, the support section 33 and the drainage section 31 are integrally formed; or, the support section 33 and the drainage section 31 are separately provided, and the two are connected by screws, adhesive or welding.
[0044] In a specific embodiment, the support section 33 and the drainage section 31 are connected in a detachable manner to enable quick disassembly and replacement, reducing maintenance time and costs.
[0045] In a further embodiment, the windbreak structure 30 includes a seal; along the first direction, a seal is pressed between the diversion section 31 and the second connecting portion 332, that is, when the diversion section 31 and the support section 33 are set separately, the sealing performance can be enhanced by adding a seal at the connection, so as to promote the flow of all airflow to the heat exchange module 10.
[0046] In a specific embodiment, the windbreak structure 30 further includes a locking member that passes through the guide section 31 and locks the guide section 31 and the second connecting portion 332. A sealing element is pressed between the guide section 31 and the locking member to ensure that the gap between the guide section 31 and the locking member can be sealed by the sealing element, preventing airflow leakage from the gap between the guide section 31 and the locking member, and enhancing the connection sealing performance. For example, the locking member is a screw that passes through the guide section 31 and is threadedly connected to and locked to the second connecting portion 332. A sealing element is pressed between the guide section 31 and the nut of the screw.
[0047] For example, the seal may be a sealing ring or a sealing gasket.
[0048] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.
[0049] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the scope of protection of this application. Therefore, the patent protection scope of this application should be determined by the appended claims.
Claims
1. A heat exchanger, characterized by, The heat exchange module (10) comprises a plurality of heat exchange pipes (11) arranged at intervals and a plurality of fins, each of the fins being inserted with a plurality of the heat exchange pipes (11); along a first direction, the heat exchange module (10) has a windward side (101); The header (20) is provided with a plurality of connecting holes, each of the connecting holes being connected with a corresponding heat exchange pipe (11), and a gap being formed between the header (20) and the fins; The wind blocking structure (30) further comprises a support section (33) connected between the heat exchange module (10) and the flow guiding section (31). The wind blocking structure (30) further comprises a support section (33) connected between the heat exchange module (10) and the flow guiding section (31). The support section (33) comprises a support part (331) and a second connecting part (332) connected to the support part (331), the support part (331) and the second connecting part (332) are arranged at an angle, the support part (331) is provided with a plurality of heat exchange pipes (11), and the second connecting part (332) is connected to one end of the flow guiding section (31) away from the stop section (32).
2. The heat exchanger of claim 1, wherein The wind blocking structure (30) further comprises a sealing member.
3. The heat exchanger of claim 1, wherein The heat exchanger is provided with a shell, the heat exchange module (10) is assembled in the shell, and the stop section (32) is bent to form a first connecting part (321) connected with the shell.
4. The heat exchanger of claim 3, wherein The wind blocking structure (30) further comprises a support section (33) connected between the heat exchange module (10) and the flow guiding section (31). The support section (33) comprises a support part (331) and a second connecting part (332) connected to the support part (331), the support part (331) and the second connecting part (332) are arranged at an angle, the support part (331) is provided with a plurality of heat exchange pipes (11), and the second connecting part (332) is connected to one end of the flow guiding section (31) away from the stop section (32).
5. The heat exchanger of claim 4, wherein The wind blocking structure (30) further comprises a sealing member.
6. The heat exchanger of claim 4, wherein The heat exchanger is provided with a shell, the heat exchange module (10) is assembled in the shell, and the stop section (32) is bent to form a first connecting part (321) connected with the shell.
7. The heat exchanger of claim 4, wherein The wind blocking structure (30) further comprises a support section (33) connected between the heat exchange module (10) and the flow guiding section (31).
8. The heat exchanger of claim 4, wherein The support section (33) comprises a support part (331) and a second connecting part (332) connected to the support part (331), the support part (331) and the second connecting part (332) are arranged at an angle, the support part (331) is provided with a plurality of heat exchange pipes (11), and the second connecting part (332) is connected to one end of the flow guiding section (31) away from the stop section (32).
9. The heat exchanger of claim 8, wherein, The wind blocking structure (30) further comprises a sealing member.
10. The heat exchanger of claim 9, wherein The heat exchanger is provided with a shell, the heat exchange module (10) is assembled in the shell, and the stop section (32) is bent to form a first connecting part (321) connected with the shell. In the first direction, the sealing member is arranged between the drainage section (31) and the second connecting portion (332); and / or, the wind blocking structure (30) further comprises a locking member, the locking member penetrating through the drainage section (31) and locking the drainage section (31) and the second connecting portion (332), and the sealing member is arranged between the drainage section (31) and the locking member.