Fin for heat exchanger, heat exchanger and air conditioner
Patent Information
- Application Number
- CN202522039908.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-22
- Publication Date
- 2026-09-11
- Estimated Expiration
- 2035-09-22
AI Technical Summary
[0005]本实用新型的一个目的在于，解决现有换热器的整体性能较差的问题
[0034]基于前文的描述，本领域技术人员能够理解的是，在本实用新型前述的技术方案中，通过将翅片的片体部设置为中部平片区、迎风侧波纹区和背风侧波纹区，使得片体部可以通过迎风侧波纹区和背风侧波纹区来扰动气流，有效地打断了翅片上边界层的发展，减薄了边界层，强化了换热器的换热性能。同时，相比于现有技术中，将整个片体部均设置为波纹形而言，本实用新型通过仅设置迎风侧波纹区和背风侧波纹区，有效地降低了片体部上波峰和波谷的面积，进而降低了翅片的风阻。
Smart Images
Figure CN224744146U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of heat exchanger technology, and specifically provides a fin for a heat exchanger, a heat exchanger, and an air conditioner. Background Technology
[0002] A heat exchanger is a major component of an air conditioner, used to heat or cool the air flowing through the air conditioner, thereby heating or cooling the environment in which the air conditioner is located.
[0003] The fins of a heat exchanger have a significant impact on its heat exchange efficiency. Especially for flat fins (thin, horizontal fins without bends or curves), airflow adheres to the fin surface, forming a boundary layer. This boundary layer separates other air from the fins, forcing other air to exchange heat indirectly with the fins only through the boundary layer, resulting in lower heat exchange efficiency.
[0004] To improve heat exchange efficiency, some heat exchangers employ corrugated fins. This involves designing the fins as a reciprocating, corrugated sheet structure. Furthermore, the direction of the corrugations extends parallel to the incoming flow direction of the heat exchanger. The undulating peaks and troughs disturb the airflow, thereby interrupting the development of the boundary layer on the fins, thinning the boundary layer, and enhancing the heat exchanger's performance. However, the undulating peaks and troughs on the corrugated fins also increase the heat exchanger's air resistance, resulting in relatively poor overall performance. Utility Model Content
[0005] One objective of this invention is to solve the problem of poor overall performance of existing heat exchangers.
[0006] To achieve the above objectives, the present invention provides, in a first aspect, fins for a heat exchanger, characterized in that they comprise:
[0007] The sheet portion includes a central flat sheet area, a windward corrugated area located on the windward side of the central flat sheet area, and a leeward corrugated area located on the leeward side of the central flat sheet area.
[0008] At least one row of pipe clamps is distributed on the central flat area and is provided with through holes, the through holes being used to allow the refrigerant pipes of the heat exchanger to pass through, so as to thermally connect the refrigerant pipes to the pipe clamps.
[0009] Optionally, the extension direction of the corrugations with alternating peaks and troughs in the windward and leeward corrugated areas is perpendicular to the incoming flow direction of the heat exchanger.
[0010] Optionally, the width of the windward corrugated area is greater than the width of the leeward corrugated area.
[0011] Optionally, the width of the central flat area is denoted as L.中 The width of the corrugated area on the windward side is denoted as L. 迎 The width of the leeward corrugated area is denoted as L. 背 ,but:
[0012] 0.2≤L 迎 ÷L 中 ≤1.5;
[0013] 0.2≤L 背 ÷L 中 ≤1.2.
[0014] Optionally, the distance between the wave crest in the windward corrugated area and the central axis of the nearest column of the pipe clamps is denoted as L1, and the distance between the wave crest in the leeward corrugated area and the central axis of the nearest column of the pipe clamps is denoted as L2, where 1≤L1÷L2≤2.
[0015] Optionally, if the diameter of the through hole is denoted as d, then:
[0016] 1.2≤L 中 ÷d≤4.5.
[0017] Optionally, the maximum height of the wave crest protruding from the central flat area within the windward corrugated area is denoted as H. 迎 The maximum height of the wave crest in the leeward corrugated area protruding beyond the central flat area is denoted as H. 背 ,but:
[0018] 1.5mm 2 ≤H 迎 ×L 迎 ≤7mm 2 ;
[0019] 1.5mm 2 ≤H 背 ×L 背 ≤5mm 2 .
[0020] Optionally, the height of the wave crest in the windward corrugated area gradually decreases towards the central flat area; and / or, the height of the wave crest in the leeward corrugated area gradually decreases towards the central flat area.
[0021] Optionally, the wave crests in the windward corrugated area and the wave crests in the leeward corrugated area each smoothly transition to the central flat area at one end near the central flat area.
[0022] Optionally, in the same column of pipe clamps, the number of wave peaks in the windward corrugated area between two adjacent pipe clamps is m, and the number of wave peaks in the leeward corrugated area between two adjacent pipe clamps is n.
[0023] Where m≥2, n≥2.
[0024] Optionally, the distance between adjacent crests and troughs within the windward corrugated area is denoted as J. 迎 The distance between adjacent crests and troughs within the leeward ripple zone is denoted as J. 背 The distance between two adjacent clamp sections in the same column is denoted as J. 箍 ,but:
[0025] 1.5≤J 箍 ÷J 迎 ≤10;
[0026] 1.5≤J 箍 ÷J 背 ≤10.
[0027] Optionally, the central flat area is provided with a heat exchange enhancement structure, which is a bridge plate, a window plate, or a protrusion.
[0028] In a second aspect, this utility model provides a heat exchanger, comprising:
[0029] The fins as described in any one of the first aspects;
[0030] At least one refrigerant pipe passes through the through hole and is thermally connected to the fins.
[0031] Optionally, the distance between two adjacent fins is denoted as S, and the maximum height of the wave crest in the windward corrugated area protruding from the central flat area is denoted as H. 迎 The maximum height of the wave crest in the leeward corrugated area protruding beyond the central flat area is denoted as H. 背 ,but:
[0032] 1.2mm≤S≤2mm, and / or, 0.2≤H 迎 ÷S≤0.8, and / or, 0.2≤H 背 ÷S≤0.8.
[0033] In a third aspect, this utility model provides an air conditioner that includes the heat exchanger described in any one of the second aspects.
[0034] Based on the foregoing description, those skilled in the art will understand that in the aforementioned technical solution of this utility model, by setting the fin body portion as a central flat area, a windward corrugated area, and a leeward corrugated area, the fin body portion can disturb the airflow through the windward and leeward corrugated areas, effectively interrupting the development of the upper boundary layer of the fin, thinning the boundary layer, and enhancing the heat exchanger's heat transfer performance. Furthermore, compared to the prior art where the entire fin body portion is corrugated, this utility model, by only setting the windward and leeward corrugated areas, effectively reduces the area of the crests and troughs on the fin body portion, thereby reducing the fin's wind resistance.
[0035] Furthermore, by making the extension direction of the corrugations with alternating peaks and troughs in the windward and leeward corrugated areas perpendicular to the incoming flow direction of the heat exchanger, the windward and leeward corrugated areas can not only disturb the airflow but also reduce the air resistance, thereby further reducing the air resistance of the fins.
[0036] Other beneficial effects of this utility model will be described in detail below with reference to the accompanying drawings, so that those skilled in the art can more clearly understand the improvement purpose, features and advantages of this utility model. Attached Figure Description
[0037] To more clearly illustrate the technical solution of this utility model, some embodiments of this utility model will be described below with reference to the accompanying drawings. Those skilled in the art should understand that the same reference numerals may indicate the same or similar components or parts in different drawings; the drawings of this utility model are not necessarily drawn to scale. In the drawings:
[0038] Figure 1 This is a schematic diagram of the structure of a heat exchanger provided by this utility model (only a few fins are shown in detail);
[0039] Figure 2 This is a schematic diagram of another heat exchanger provided by this utility model (only a few fins are shown in detail);
[0040] Figure 3 This is a top view of the fins having one row of tube clamps in the first embodiment of this utility model;
[0041] Figure 4 This is a top view of the fins with two rows of tube clamps in the first embodiment of this utility model;
[0042] Figure 5 yes Figure 4 Cross-sectional view of the middle fin along the AA direction;
[0043] Figure 6 yes Figure 4 A three-dimensional view of the median fin;
[0044] Figure 7 yes Figure 6 Side view of the middle fin along the F direction (2 fins);
[0045] Figure 8 This is a top view of the fins in the second embodiment of this utility model;
[0046] Figure 9 yes Figure 8 Cross-sectional view of the middle fin along the BB direction;
[0047] Figure 10 This is a top view of the fins in the third embodiment of this utility model;
[0048] Figure 11 yes Figure 10 Cross-sectional view of the middle fin along the CC direction;
[0049] Figure 12 This is a top view of the fins in the fourth embodiment of this utility model;
[0050] Figure 13 yes Figure 12 Cross-sectional view of the middle fin along the DD direction;
[0051] Figure 14 This is a schematic diagram of an air conditioner provided by this utility model.
[0052] Explanation of reference numerals in the attached figures:
[0053] 001. Heat exchanger;
[0054] 100. Fin; 110. Fin body; 111. Central flat fin area; 112. Windward side corrugated area; 113. Leeward side corrugated area; 120. Pipe clamp; 121. Through hole; 130. Heat exchange enhancement structure; 131. Bridge fin; 132. Window fin; 133. Protrusion;
[0055] 200. Refrigerant pipe;
[0056] 002. Air conditioner; 300. Indoor unit of air conditioner; 400. Outdoor unit of air conditioner;
[0057] F. Direction of incoming flow. Detailed Implementation
[0058] Those skilled in the art should understand that the embodiments described below are merely some embodiments of the present invention, and not all embodiments of the present invention. These embodiments are intended to explain the technical principles of the present invention and are not intended to limit the scope of protection of the present invention. Based on the embodiments provided by the present invention, all other embodiments obtained by those skilled in the art without creative effort should still fall within the scope of protection of the present invention.
[0059] It should be noted that in the description of this utility model, terms such as "center," "upper," "lower," "top," "bottom," "left," "right," "vertical," "horizontal," "inner," and "outer," which indicate direction or positional relationships, are based on the direction or positional relationships shown in the accompanying drawings. These are used merely for ease of description and do not indicate or imply that the corresponding device or element 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. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0060] Furthermore, it should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection of 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. For example, unless otherwise specified, the terms "installation," "connection," "joining," and "fixing" can specifically refer to any feasible connection form such as bolt connection, screw connection, welding, insertion, riveting, fusion welding, or snap-fit.
[0061] Furthermore, it should be noted that in the description of this utility model, mm represents millimeter, cm represents centimeter, and m represents meter.
[0062] Furthermore, it should be noted that in the description of this utility model, the terms "coldness" and "heat" are two descriptions of the same physical state. That is, the higher the "coldness" of a target object (e.g., evaporator, air, condenser, etc.), the lower its "heat," and vice versa. A target object absorbs "coldness" while releasing "heat," and releases "coldness" while absorbing "heat." A target object retains "coldness" or "heat" to maintain its current temperature. "Refrigeration" and "heat absorption" are two descriptions of the same physical phenomenon; that is, a target object (e.g., evaporator) absorbs heat while refrigerating.
[0063] like Figure 1 and Figure 2 As shown, the heat exchanger 001 of this utility model includes multiple fins 100 and refrigerant pipes 200 passing through the multiple fins 100. The refrigerant pipes 200 are thermally connected to the fins 100, specifically by contacting each other and fixing them together by means of clamping, welding, etc., so that heat can be transferred between the refrigerant pipes 200 and the fins 100. That is, heat can be conducted from the refrigerant pipes 200 to the fins 100, or from the fins 100 to the refrigerant pipes 200.
[0064] In this invention, the diameter of the refrigerant pipe 200 can be selected from any value between 5.8mm and 6.5mm, specifically any feasible value such as 5.8mm, 5.85mm, 5.9mm, 6.0mm, 6.01mm, 6.2mm, 6.3mm, or 6.5mm. Furthermore, the pipe diameter can be the size of the refrigerant pipe 200 before assembly with the fins 100, or the size after assembly with the fins 100.
[0065] Furthermore, the diameter of the refrigerant pipe 200 can be selected from any value between 5.9mm and 6.2mm, specifically any feasible value such as 5.9mm, 5.95mm, 5.98mm, 6.0mm, 6.03mm, 6.0mm, 6.05mm, 6.08mm, 6.12mm, 6.15mm, 6.2mm, etc.
[0066] The following reference Figures 3 to 13 The fin 100 of this utility model will be illustrated by an example.
[0067] like Figure 3 and Figure 4 As shown, in the first embodiment of this utility model, the fin 100 includes a fin body portion 110 and at least one row of clamp portions 120, for example, Figure 3 The 1st column of pipe clamps 120 shown and Figure 4 The two columns of pipe clamps 120 are shown.
[0068] The sheet portion 110 includes a central flat sheet area 111, a windward corrugated area 112 located on the windward side of the central flat sheet area 111, and a leeward corrugated area 113 located on the leeward side of the central flat sheet area 111.
[0069] The clamp section 120 is located on the central flat area 111 and has through holes 121. The through holes 121 allow the refrigerant pipe 200 of the heat exchanger 001 to pass through, enabling thermal connection between the refrigerant pipe 200 and the clamp section 120. The boundary between the windward corrugated area 112 and the central flat area 111 is as follows: Figure 3 and Figure 4As shown by the dotted line on the right, the boundary between the leeward corrugated area 113 and the central flat area 111 is as follows: Figure 3 and Figure 4 As shown by the dashed line on the left side of the middle.
[0070] In the first embodiment of this utility model, each column of pipe clamps 120 can correspond to a central flat area 111, a windward corrugated area 112 and a leeward corrugated area 113 respectively, and the windward corrugated area 112 and the leeward corrugated area 113 are connected between two adjacent columns of pipe clamps 120.
[0071] Those skilled in the art will understand that by configuring the fin portion 110 of the fin 100 as a central flat area 111, a windward corrugated area 112, and a leeward corrugated area 113, the fin portion 110 can disturb the airflow through the windward corrugated area 112 and the leeward corrugated area 113, effectively interrupting the development of the upper boundary layer of the fin 100, thinning the boundary layer, and enhancing the heat exchange performance of the heat exchanger 001. Furthermore, compared to the prior art where the entire fin portion 110 is corrugated, this invention, by only configuring the windward corrugated area 112 and the leeward corrugated area 113, effectively reduces the area of the crests and troughs on the fin portion 110, thereby reducing the wind resistance of the fin 100.
[0072] like Figures 5 to 7 As shown, in the first embodiment of this utility model, the extension direction of the corrugations with alternating peaks and troughs in the windward corrugated area 112 and the leeward corrugated area 113 is perpendicular to the incoming flow direction F of the heat exchanger 001.
[0073] Those skilled in the art will understand that by making the extension direction of the corrugations with alternating peaks and troughs in the windward corrugated area 112 and the leeward corrugated area 113 perpendicular to the incoming flow direction F of the heat exchanger 001, the windward corrugated area 112 and the leeward corrugated area 113 can both disturb the airflow and reduce the air resistance, thereby further reducing the air resistance of the fins 100.
[0074] Furthermore, the width of the windward corrugated region 112 is greater than the width of the leeward corrugated region 113, so as to fully disturb the airflow through the windward corrugated region 112, interrupt the development of the upper boundary layer of the fins 100, and thin the boundary layer. Since the heat exchanger 001 is usually located on the upstream side of the fan, the leeward corrugated region 113 can also play an auxiliary role in disturbing the airflow.
[0075] like Figure 3 and Figure 4 As shown, in the first embodiment of this utility model, the width of the central flat area 111 is denoted as L. 中 Let L be the width of the corrugated area 112 on the windward side. 迎Let L be the width of the leeward corrugated area 113. 背 ,but:
[0076] 0.2≤L 迎 ÷L 中 ≤1.5;
[0077] 0.2≤L 背 ÷L 中 ≤1.2.
[0078] Specifically, L 迎 With L 中 The ratio can be any feasible value such as 0.2, 0.5, 0.8, 0.9, 1.2, 1.5, etc. L 背 With L 中 The ratio can be any feasible value such as 0.2, 0.5, 0.8, 0.9, 1.2, etc.
[0079] like Figure 3 and Figure 5 As shown, in the first embodiment of this utility model, the diameter of the through hole 121 is denoted as d, then:
[0080] 1.2≤L 中 ÷d≤4.5.
[0081] Specifically, L 中 The ratio to d can be any feasible value such as 1.2, 1.5, 2.1, 2.8, 3, 3.6, 4, 4.5, etc.
[0082] like Figure 3 As shown, in the first embodiment of this utility model, the distance between the wave crest in the windward corrugated area 112 and the central axis of the nearest row of pipe clamps 120 is denoted as L1, and the distance between the wave crest in the leeward corrugated area 113 and the central axis of the nearest row of pipe clamps 120 is denoted as L2.
[0083] 1≤L1÷L2≤2.
[0084] Specifically, the ratio of L1 to L2 can be any feasible value such as 1, 1.2, 1.5, 1.8, 1.9, or 2.
[0085] It should be noted that in this invention, both the windward corrugated area 112 and the leeward corrugated area 113 have crests on both sides in the thickness direction. Furthermore, a crest on one side is a trough on the other side, and a trough on one side is a crest on the other side.
[0086] like Figure 5 As shown, in the first embodiment of this utility model, the maximum height of the wave crest protruding from the central flat area 111 in the windward corrugated area 112 is denoted as H. 迎The maximum height of the wave crest protruding from the central flat area 111 within the leeward corrugated area 113 is denoted as H. 背 ,but:
[0087] 1.5mm 2 ≤H 迎 ×L 迎 ≤7mm 2 ;
[0088] 1.5mm 2 ≤H 背 ×L 背 ≤5mm 2 .
[0089] Specifically, H 迎 With L 迎 The product can be 1.5mm. 2 1.8mm 2 3mm 2 4mm 2 4.5mm 2 6mm 2 6.5mm 2 7mm 2 Any feasible value. H 背 With L 背 The product can be 1.5mm. 2 1.8mm 2 3mm 2 4mm 2 4.5mm 2 5mm 2 Any feasible value.
[0090] Those skilled in the art will understand that by making H 迎 L 迎 H 背 and L 背 By satisfying the above conditions, it is possible to ensure that the windward corrugated area 112 and the leeward corrugated area 113 can disturb the airflow and weaken the boundary layer, while also avoiding excessive wind resistance in the windward corrugated area 112 and the leeward corrugated area 113.
[0091] like Figure 6 As shown, in the first embodiment of this utility model, the height of the wave crest in the windward corrugated area 112 gradually decreases towards the central flat area 111; and / or, the height of the wave crest in the leeward corrugated area 113 gradually decreases towards the central flat area 111.
[0092] Furthermore, the wave crests in the windward corrugated area 112 and the wave crests in the leeward corrugated area 113 each smoothly transition to the central flat area 111 at one end near the central flat area 111.
[0093] Those skilled in the art will understand that the windward corrugated area 112 and the leeward corrugated area 113, through the above-described structure, can both disturb the airflow and make the airflow flow smoothly, thus preventing an increase in wind noise.
[0094] Furthermore, in the first embodiment of this utility model, in the same row of pipe clamp sections 120, the number of wave peaks in the corrugated area 112 on the windward side between two adjacent pipe clamp sections 120 is m, and the number of wave peaks in the corrugated area 113 on the leeward side between two adjacent pipe clamp sections 120 is n.
[0095] Where m≥2, n≥2.
[0096] like Figure 4 and Figure 7 As shown, in the first embodiment of this utility model, the distance between adjacent crests and troughs within the windward corrugated area 112 is denoted as J. 迎 The distance between adjacent crests and troughs within the leeward ripple zone 113 is denoted as J. 背 The distance between two adjacent clamp sections 120 in the same column is denoted as J. 箍 ,but:
[0097] 1.5≤J 箍 ÷J 迎 ≤10;
[0098] 1.5≤J 箍 ÷J 背 ≤10.
[0099] Specifically, J 箍 With J 迎 The ratio, and J 箍 With J 背 The ratios can be any feasible values such as 1.5, 2, 2.5, 3, 4, 5, 6, 6.8, 7, 8, 8.5, 8.9, 9.3, 10, etc.
[0100] As will be understood by those skilled in the art, m, n, J 箍 J 迎 and J 背 The above relationship ensures that the density of wave crests in the windward corrugated area 112 and the leeward corrugated area 113 is appropriate, neither too large, which would result in poor turbulence, nor too small, which would result in high wind resistance.
[0101] like Figure 7 As shown, in the first embodiment of this utility model, the distance between two adjacent fins 100 is denoted as S, and the maximum height of the wave crest in the windward corrugated area 112 protruding from the central flat area 111 is denoted as H. 迎The maximum height of the wave crest protruding from the central flat area 111 within the leeward corrugated area 113 is denoted as H. 背 ,but:
[0102] 1.2mm≤S≤2mm, and / or, 0.2≤H 迎 ÷S≤0.8, and / or, 0.2≤H 背 ÷S≤0.8.
[0103] Where S can be any feasible value such as 1.2mm, 1.3mm, 1.5mm, 1.7mm, 1.9mm, 2mm, etc. H 迎 The ratio of S and H 背 The ratio to S can be any feasible value such as 0.2, 0.3, 0.35, 0.4, 0.5, 0.6, 0.7, 0.8, etc.
[0104] Those skilled in the art will understand that, due to the narrow channels formed between two adjacent windward corrugated areas 112, the narrow channels formed between two adjacent central flat areas 111, and the narrow channels formed between two adjacent leeward corrugated areas 113, the overall structure is a tortuous narrow channel. Therefore, H 迎 H 背 The aforementioned limitations of S ensure that the change in airflow in the thickness direction of the central flat area 111 is neither too large, which would increase wind resistance, nor too small, which would result in poor turbulence.
[0105] like Figures 8 to 13 As shown, those skilled in the art can also, as needed, provide a heat exchange enhancement structure 130 in the central flat area 111 to improve the heat exchange effect of the fins 100. This heat exchange enhancement structure 130 can be... Figure 8 and Figure 9 The bridge piece 131 shown in the second embodiment can also be Figure 10 and Figure 11 The window 132 in the third embodiment shown can also be Figure 12 and Figure 13 The protrusion 133 in the fourth embodiment shown is formed by a stamping process.
[0106] like Figure 14 As shown, the present invention also provides an air conditioner 002, which includes the heat exchanger 001 described in any of the preceding embodiments.
[0107] The air conditioner 002 of this utility model can be a split-type air conditioner or an integrated air conditioner.
[0108] Among them, split-type air conditioners, such as Figure 14The illustrated unit includes an indoor air conditioning unit 300 and an outdoor air conditioning unit 400. The indoor air conditioning unit 300 can be a wall-mounted air conditioner, a floor-standing air conditioner, a ducted air conditioner, a ceiling-mounted air conditioner, etc. The heat exchanger 001 described in any of the preceding embodiments can be arranged in the indoor air conditioning unit 300 or in the outdoor air conditioning unit 400.
[0109] Among them, the integrated air conditioner can be a window unit.
[0110] Furthermore, in the air conditioner 002, the heat exchanger 001 can be any feasible configuration such as type I, type L, type U, type O, multi-fold type, etc.
[0111] The technical solution of this utility model has been described in conjunction with several embodiments above. However, it will be readily understood by those skilled in the art that the protection scope of this utility model is not limited to these specific embodiments. Without departing from the technical principles of this utility model, those skilled in the art can disassemble and combine the technical solutions in the above embodiments, and can also make equivalent changes or substitutions to the relevant technical features. Any changes, equivalent substitutions, improvements, etc., made within the technical concept and / or technical principles of this utility model will fall within the protection scope of this utility model.
[0112] Finally, it should be noted that in this invention, the term "connection" refers to fluid communication, allowing fluid (e.g., air, liquid) to flow between two interconnected entities. Furthermore, this "connection" can be either a leak-free flow of fluid between two interconnected entities, or a flow with slight leakage between two interconnected entities.
Claims
1. A fin for a heat exchanger, characterized in that, include: The sheet portion includes a central flat sheet area, a windward corrugated area located on the windward side of the central flat sheet area, and a leeward corrugated area located on the leeward side of the central flat sheet area. At least one row of pipe clamps is distributed on the central flat area and is provided with through holes, the through holes being used to allow the refrigerant pipes of the heat exchanger to pass through, so as to thermally connect the refrigerant pipes to the pipe clamps.
2. The fins for a heat exchanger according to claim 1, characterized in that, The direction of the corrugations with alternating peaks and troughs in the windward and leeward corrugated areas is perpendicular to the incoming flow direction of the heat exchanger.
3. The fins for a heat exchanger according to claim 1, characterized in that, The width of the corrugated area on the windward side is greater than the width of the corrugated area on the leeward side.
4. The fins for a heat exchanger according to claim 3, characterized in that, Let L be the width of the central flat area. 中 The width of the corrugated area on the windward side is denoted as L. 迎 The width of the leeward corrugated area is denoted as L. 背 ,but: 0.2≤L 迎 ÷L 中 ≤1.5; 0.2≤L 背 ÷L 中 ≤1.2。 5. The fins for a heat exchanger according to claim 4, characterized in that, The distance between the wave crest in the windward corrugated area and the central axis of the nearest column of pipe clamps is denoted as L1, and the distance between the wave crest in the leeward corrugated area and the central axis of the nearest column of pipe clamps is denoted as L2. 1≤L1÷L2≤2.
6. The fins for a heat exchanger according to claim 4, characterized in that, Let the diameter of the through hole be d, then: 1.2≤L 中 ÷d≤4.5。 7. The fins for a heat exchanger according to claim 4, characterized in that, The maximum height of the wave crest protruding from the central flat area within the windward corrugated area is denoted as H. 迎 The maximum height of the wave crest in the leeward corrugated area protruding beyond the central flat area is denoted as H. 背 ,but: 1.5mm 2 ≤H 迎 ×L 迎 ≤7mm 2 ; 1.5mm 2 ≤H 背 ×L 背 ≤5mm 2 。 8. The fins for a heat exchanger according to any one of claims 1 to 7, characterized in that, The height of the wave crests in the windward corrugated area gradually decreases towards the central flat area; and / or The height of the wave crests in the leeward corrugated area gradually decreases towards the central flat area.
9. The fins for a heat exchanger according to claim 8, characterized in that, The wave crests in the windward corrugated area and the wave crests in the leeward corrugated area each smoothly transition to the central flat area at one end near the central flat area.
10. The fins for a heat exchanger according to any one of claims 1 to 7, characterized in that, In the same column of pipe clamps, the number of wave peaks in the windward corrugated area between two adjacent pipe clamps is m, and the number of wave peaks in the leeward corrugated area between two adjacent pipe clamps is n. Where m≥2, n≥2.
11. The fins for a heat exchanger according to claim 10, characterized in that, The distance between adjacent crests and troughs within the windward corrugated area is denoted as J. 迎 The distance between adjacent crests and troughs within the leeward ripple zone is denoted as J. 背 The distance between two adjacent clamp sections in the same column is denoted as J. 箍 ,but: 1.5≤J 箍 ÷J 迎 ≤10; 1.5≤J 箍 ÷J 背 ≤10。 12. The fins for a heat exchanger according to any one of claims 1 to 7, characterized in that, The central flat area is provided with a heat exchange enhancement structure, which is a bridge plate, a window plate, or a protrusion.
13. A heat exchanger, characterized in that, include: The fins according to any one of claims 1 to 12; At least one refrigerant pipe passes through the through hole and is thermally connected to the fins.
14. The heat exchanger according to claim 13, characterized in that, Let S be the distance between two adjacent fins, and let H be the maximum height of the wave crest in the windward corrugated area protruding from the central flat area. 迎 The maximum height of the wave crest in the leeward corrugated area protruding beyond the central flat area is denoted as H. 背 ,but: 1.2mm≤S≤2mm, and / or, 0.2≤H 迎 ÷S≤0.8, and / or, 0.2≤H 背 ÷S≤0.
8.
15. An air conditioner, characterized in that, Includes the heat exchanger as described in claim 13 or 14.