Highly different bimodal fin, heat exchanger and air conditioner

Abstract

The utility model belongs to heat exchanger technical field, specifically provides a height different bimodal fin, heat exchanger and air conditioner. The utility model aims at solving the problem of narrow wind speed range of the airflow of the fin disturbance effect of the existing heat exchanger is better. For this, the fin of the utility model includes the fin body part and at least one column pipe hoop part, and the pipe hoop part is used for allowing the refrigerant pipe to penetrate and is connected with the refrigerant pipe heat. The fin body part includes the windward side wave crest section, the wave trough section and the leeward side wave crest section that meet in turn, and the wave trough section is arranged with one column pipe hoop part in its extension direction, the height of windward side wave crest section and the height of leeward side wave crest section are different, so as to increase the structural strength of fin body part, and destroy the boundary layer of airflow adhesion on the surface of fin body part. The utility model makes the fin body part can play the better disturbance effect to the airflow in the wider wind speed range, and strengthens the effect of fin destroying the boundary layer of airflow adhesion on the surface of fin body part.

Description

Technical Field

[0001] This utility model belongs to the field of heat exchanger technology, and specifically provides a double-peaked fin with different heights, a heat exchanger, and an air conditioner. Background Technology

[0002] In the field of heat exchangers, fins are widely used as an important heat transfer element. Common fin types include straight fins, corrugated fins, louvered fins, and perforated fins, whose main function is to increase the heat transfer area and improve heat transfer efficiency. For example, in the heat exchanger of an air conditioner, the performance of the fins directly affects the energy efficiency and performance of the air conditioner.

[0003] Existing fins typically include a fin body and a clamping section, so that the fins are thermally connected to the refrigerant pipes through the clamping section, and exchange heat with the gas flowing through them mainly through the fin body.

[0004] Existing corrugated fins typically feature alternating crests and troughs in the fin body. This increases the heat exchange area of ​​the fins while enhancing the structural strength of the fin body and turbulentizing the airflow passing through it, thus disrupting the boundary layer formed on the fin surface. It's important to note that the boundary layer separates other air from the fins, forcing other air to exchange heat indirectly with the fins only through the boundary layer, thereby affecting the heat exchanger's efficiency.

[0005] Current sheet-like structures typically have multiple peaks, and the peaks are usually at the same height. This means they can only effectively disturb airflow within a narrow range of wind speeds, and are less effective at disturbing airflow within a wider range of wind speeds. Utility Model Content

[0006] One objective of this invention is to solve the problem that the airflow velocity range is narrow even when the fins of existing heat exchangers have a good turbulence effect.

[0007] To achieve the above objectives, the present invention provides a fin in a first aspect, comprising:

[0008] At least one row of pipe clamps is provided to allow refrigerant pipes to pass through and be thermally connected to the refrigerant pipes;

[0009] The sheet portion includes a windward crest section, a trough section, and a leeward crest section connected in sequence. A row of the pipe clamps is arranged in the trough section in its extension direction. The height of the windward crest section is different from that of the leeward crest section to increase the structural strength of the sheet portion and to break the boundary layer on the surface of the airflow.

[0010] Optionally, the height of one of the windward side wave crest section and the leeward side wave crest section is greater than the height of the pipe clamp, and the height of the other of the windward side wave crest section and the leeward side wave crest section is less than the height of the pipe clamp.

[0011] Optionally, the one with the larger height value between the windward side wave crest segment and the leeward side wave crest segment is denoted as H1, and the one with the smaller height value between the windward side wave crest segment and the leeward side wave crest segment is denoted as H2, where 1≤H1 / H2≤2.5.

[0012] Optionally, 1.1 ≤ H1 / H2 ≤ 2.

[0013] Optionally, on a plane perpendicular to the axis of the hose clamp, the length L11 of the projection of the windward crest segment away from the hose clamp is less than the length L12 of the projection of the windward crest segment near the hose clamp, and / or, the length L21 of the projection of the leeward crest segment away from the hose clamp is less than the length L22 of the projection of the leeward crest segment near the hose clamp.

[0014] Optionally, the width of the sheet portion is denoted as L, then 0.1L≤L11≤0.24L, 0.26L≤L12≤0.4L, 0.1L≤L21≤0.24L, and 0.26L≤L22≤0.4L.

[0015] Optionally, the fin includes at least two rows of the tube clamps, and a connecting plate is provided between the windward side crest section and the leeward side crest section between two adjacent rows of the tube clamps.

[0016] Optionally, the connecting plate segment is perpendicular to the axis of the clamp portion; and / or, the connecting plate segment is provided with a concave-convex structure to disrupt the boundary layer on the surface of the connecting plate segment where the airflow adheres.

[0017] Optionally, the sheet portion further includes an upstream edge plate segment and a downstream edge plate segment, the upstream edge plate segment and the downstream edge plate segment being perpendicular to the axis of the pipe clamp portion.

[0018] Optionally, the upstream edge plate segment and the downstream edge plate segment are respectively provided with concave and convex structures to disrupt the boundary layer on the surface of the airflow adhering to the upstream edge plate segment and the downstream edge plate segment.

[0019] Optionally, a transition slope is provided between the windward slope and the leeward slope of at least one of the windward and leeward wave crest sections to weaken the eddies.

[0020] In a second aspect, this utility model provides a heat exchanger, comprising:

[0021] The fins as described in any one of the first aspects;

[0022] A refrigerant pipe passes through multiple fins and is thermally connected to the fins.

[0023] In a third aspect, this utility model provides an air conditioner that includes the heat exchanger described in the second aspect.

[0024] Based on the foregoing description, those skilled in the art will understand that in the aforementioned technical solution of this utility model, by making the height of the windward side wave crest section different from the height of the leeward side wave crest section, the structural strength of the sheet portion is increased while the boundary layer on the surface of the airflow is disrupted. Moreover, because the height of the windward side wave crest section is different from the height of the leeward side wave crest section, the sheet portion can exert a better disturbance effect on the airflow over a wider range of wind speeds, thus enhancing the effect of the fins in disrupting the boundary layer on the surface of the sheet portion.

[0025] Furthermore, when the fin includes at least two rows of tube clamps, a connecting plate section is provided between the windward side crest section and the leeward side crest section between two adjacent rows of tube clamps, so that the airflow can flow relatively smoothly from the leeward side crest section to the windward side crest section, avoiding the generation of large vortices and causing wind noise.

[0026] Furthermore, by setting concave and convex structures on the connecting plate section, the boundary layer on the surface of the airflow attached to the connecting plate section is broken, thereby improving the heat exchange efficiency between the fins and the airflow flowing through them.

[0027] Furthermore, by setting concave and convex structures on the upstream and downstream edge plate segments respectively, the boundary layer on the surface of the airflow adhering to the upstream and downstream edge plate segments is broken, thereby further improving the heat exchange efficiency between the fins and the airflow flowing through them.

[0028] 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

[0029] 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:

[0030] 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);

[0031] Figure 2This is a top view of the fins in some embodiments of this utility model;

[0032] Figure 3 yes Figure 2 Cross-sectional view of the middle fin along the AA direction;

[0033] Figure 4 yes Figure 2 A cross-sectional view of the middle fin along the BB direction (1 fin);

[0034] Figure 5 yes Figure 2 Cross-sectional view of the middle fin along the BB direction (2 fins);

[0035] Figure 6 This is a table of experimental data on the heat transfer performance of the fins under different parameters in some embodiments of this utility model;

[0036] Figure 7 yes Figure 6 Line graph of experimental data (the bottom bold dashed line is the baseline);

[0037] Figure 8 yes Figure 2 A cross-sectional view of the middle fin along the AA direction (another example);

[0038] Figure 9 yes Figure 2 A cross-sectional view of the middle fin along the AA direction (another example);

[0039] Figure 10 Yes Figures 3 to 5 The airflow simulation diagram of the fins shown;

[0040] Figure 11 Yes Figure 8 and Figure 9 The airflow simulation diagram of the fins shown;

[0041] Figure 12 This is a schematic diagram of another heat exchanger provided by this utility model (only a few fins are shown in detail);

[0042] Figure 13 This is a perspective view of the fins in some other embodiments of this utility model;

[0043] Figure 14 yes Figure 13 End view of the middle fin along the F direction;

[0044] Figure 15 yes Figure 13 End view of the middle fin along the F direction (another example);

[0045] Figure 16 yes Figure 13End view of the middle fin along the F direction (another example);

[0046] Figure 17 This is a schematic diagram of an air conditioner provided by this utility model.

[0047] Explanation of reference numerals in the attached figures:

[0048] 001. Heat exchanger;

[0049] 100. Refrigerant pipe;

[0050] 200. Fin; 210. Fin body; 211. Windward side crest section; 2111. Transition slope section; 212. Trough section; 213. Leeward side crest section; 214. Upstream edge plate section; 215. Downstream edge plate section; 216. Connecting plate section; 2161. Concave-convex structure; 220. Pipe clamp section; 221. Through hole;

[0051] 002, Air conditioner; 300, Indoor unit of air conditioner; 400, Outdoor unit of air conditioner. Detailed Implementation

[0052] 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.

[0053] 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.

[0054] 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.

[0055] Furthermore, it should be noted that in the description of this utility model, mm represents millimeter, cm represents centimeter, and m represents meter.

[0056] 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.

[0057] For ease of understanding, the fins of this utility model will be described in detail below in conjunction with a heat exchanger.

[0058] like Figure 1 As shown, the heat exchanger 001 of this utility model includes a refrigerant pipe 100 and fins 200. The refrigerant pipe 100 and the fins 200 are thermally connected, specifically, they are in contact with each other and fixed together by means of clamping, welding, etc., so that heat can be transferred between the refrigerant pipe 100 and the fins 200. That is, heat can be conducted from the refrigerant pipe 100 to the fins 200, or from the fins 200 to the refrigerant pipe 100.

[0059] In some embodiments of this utility model, the diameter of the refrigerant pipe 100 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, 6.5mm, etc. Furthermore, the pipe diameter can be the size of the refrigerant pipe 100 before assembly with the fins 200, or the size after assembly with the fins 200.

[0060] Furthermore, the diameter of the refrigerant pipe 100 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, 6.045mm, 6.05mm, 6.08mm, 6.12mm, 6.15mm, 6.2mm, etc.

[0061] like Figures 2 to 4 As shown, in some embodiments of the present invention, the fin 200 includes a fin body 210 and a plurality of clamp portions 220 disposed on the fin body 210. The clamp portion 220 is provided with a through hole 221 through which the refrigerant pipe 100 passes, so that the refrigerant pipe 100 passes through the clamp portion 220.

[0062] like Figure 1 and Figure 2 As shown, in some embodiments of the present invention, the fin 200 includes a row of clamp portions 220. In other words, a plurality of clamp portions 220 are arranged in a row along the length direction of the fin body 210. Of course, in other embodiments of the present invention, those skilled in the art can also, as needed, set the clamp portions 220 to two or more rows.

[0063] like Figure 2 As shown, in the same column, the pipe spacing H between two adjacent pipe clamp sections 220 is selected from any value between 17.1mm and 22.5mm. Specifically, the pipe spacing H can be any feasible value such as 17.1mm, 17.2mm, 17.5mm, 18.1mm, 18.6mm, 19.1mm, 19.55mm, 19.8mm, 20.0mm, 20.3mm, 20.7mm, 20.9mm, 21.3mm, 21.8mm, 22.0mm, 22.35mm, 22.4mm, 22.5mm, etc.

[0064] like Figure 2 and Figure 3 As shown, the width L of the sheet portion 210 is selected from any value between 18mm and 22mm. Specifically, it can be any feasible value such as 18mm, 18.1mm, 18.6mm, 19.1mm, 19.55mm, 19.8mm, 20.0mm, 20.3mm, 20.5mm, 21mm, 21.3mm, 21.8mm, 22mm, etc.

[0065] Furthermore, 0.8 ≤ H / L ≤ 1.22, and the ratio of H to L can be any feasible value such as 0.8, 0.85, 0.9, 0.95, 1.1, 1.15, 1.2, 1.22, etc.

[0066] like Figures 3 to 5As shown, in some embodiments of this utility model, the sheet portion 210 includes a windward crest section 211, a trough section 212, and a leeward crest section 213 connected in sequence. A row of pipe clamps 220 is arranged in the trough section 212 in its extending direction. The height of the windward crest section 211 is different from the height of the leeward crest section 213 to increase the structural strength of the sheet portion 210 and to break the boundary layer on the surface of the sheet portion 210 where the airflow adheres.

[0067] It should be noted that in this invention, the crest section and trough section 212 are relative terms, and adjacent crest sections and trough sections 212 can share a slope section (sidewall). Furthermore, there is no clear boundary between adjacent crest sections and trough sections 212. Those skilled in the art can define a boundary between adjacent crest sections and trough sections 212 according to actual needs. For example, the midpoint of the slope section shared by adjacent crest sections and trough sections 212 can be used as the boundary, and this boundary can be perpendicular to the axis of the clamp section 220.

[0068] Continue reading Figures 3 to 5 The height of the windward crest section 211 is greater than the height of the leeward crest section 213. Of course, those skilled in the art can also make the height of the windward crest section 211 less than the height of the leeward crest section 213 as needed.

[0069] Specifically, when the wind speed on the inlet side is high, for example, when the wind speed is greater than 5 m / s, the height of the windward crest section 211 is made greater than the height of the leeward crest section 213. When the wind speed on the inlet side is low, for example, when the wind speed is less than or equal to 5 m / s, the height of the windward crest section 211 is made less than the height of the leeward crest section 213.

[0070] like Figures 3 to 5 As shown, in some embodiments of this utility model, the height of one of the windward side crest section 211 and the leeward side crest section 213 is greater than the height h of the pipe clamp 220, and the height of the other of the windward side crest section 211 and the leeward side crest section 213 is less than the height h of the pipe clamp 220.

[0071] For example, in Figures 3 to 5 In the fin 200 shown, the height of the windward crest section 211 is greater than the height h of the clamp section 220, and the height of the leeward crest section 213 is less than the height h of the clamp section 220.

[0072] Those skilled in the art will understand that by making the height of one of the windward crest section 211 and the leeward crest section 213 greater than the height h of the clamp section 220, and the height of the other of the windward crest section 211 and the leeward crest section 213 less than the height h of the clamp section 220, the airflow can be gradually disturbed by the windward crest section 211, the leeward crest section 213, and the clamp section 220. This not only fully utilizes the characteristics of each part of the fin 200 structure, but also allows the windward crest section 211 or the leeward crest section 213 to protect the clamp section 220, preventing it from being squeezed and deformed during production, manufacturing, transportation, and assembly.

[0073] like Figure 3 As shown, in some embodiments of this utility model, the one with the larger height value between the windward side wave crest section 211 and the leeward side wave crest section 213 is denoted as H1, and the one with the smaller height value between the windward side wave crest section 211 and the leeward side wave crest section 213 is denoted as H2. Then, H1 and H2 have the following relationship:

[0074] 1≤H1 / H2≤2.5.

[0075] Specifically, the ratio of H1 to H2 can be any feasible value such as 1, 2.2, 1.35, 1.5, 1.7, 1.9, 2, 2.1, 2.3, 2.5, etc.

[0076] Those skilled in the art will understand that by making the ratio of H1 to H2 satisfy the above conditions, the windward crest section 211 and the leeward crest section 213 can perform multiple disturbances on the airflow, and ensure the disturbance effect of the leeward crest section 213 on the airflow.

[0077] Furthermore, 1.1≤H1 / H2≤2, to avoid generating significant wind noise due to the large height difference between the windward side wave crest section 211 and the leeward side wave crest section 213.

[0078] like Figure 3 As shown, in some embodiments of this utility model, the slope β1 of the windward slope of the windward crest section 211 is greater than the slope β2 of the leeward slope of the windward crest section 211.

[0079] Those skilled in the art will understand that by making the slope β1 of the windward slope section 211 of the windward side of the plate portion 210 greater than the slope β2 of the leeward slope section 211, the windward slope section 211 of the windward side of the plate portion 210 has sufficient slope to significantly change the direction of the airflow adhering to the surface of the plate portion 210, thus playing a turbulence role. At the same time, it avoids the formation of vortices when the airflow crosses the wave crest due to the excessive slope of the leeward slope section, which would prevent the airflow from being guided in time by the leeward slope section. Therefore, the fin 200 of this invention effectively reduces wind resistance.

[0080] Continue reading Figure 3 In some embodiments of this utility model, the slope β3 of the leeward slope of the leeward crest section 213 is greater than or less than the slope β4 of the windward slope of the leeward crest section 213.

[0081] Furthermore, 15°≤β1≤25°, 5°≤β2≤23°.

[0082] Accordingly, 15°≤β3≤25°, 5°≤β4≤23°.

[0083] Specifically, β1 can be any feasible value such as 15°, 17°, 18.5°, 20°, 21°, 23°, 25°, etc. β2 can be any feasible value such as 5°, 7°, 8.5°, 10°, 11°, 13°, 15°, 17°, 19°, 20°, 23°, etc. β3 can be any feasible value such as 15°, 17°, 18.5°, 20°, 21°, 23°, 25°, etc. β4 can be any feasible value such as 5°, 7°, 8.5°, 10°, 11°, 13°, 15°, 17°, 19°, 20°, 23°, etc.

[0084] Please see Figure 6 and Figure 7 This demonstrates the heat transfer capacity of fin 200 under different values ​​of H1, H2, β1, β2, β3, and β4. It should be noted that... Figure 6 and Figure 7 The experimental conditions were the same for all schemes. Figure 7 The bold, dark dotted line on the bottom side is the baseline for equal pump power.

[0085] from Figure 6 and Figure 7 As can be seen, the fins 200 of this utility model can significantly improve the heat exchange capacity and enhance the heat exchange performance of the heat exchanger 001.

[0086] like Figure 3 As shown, on a plane perpendicular to the axis of the clamp portion 220, the projected length L11 of the windward side wave crest section 211 away from the clamp portion 220 is less than the projected length L12 of the windward side wave crest section 211 near the clamp portion 220. This results in a larger slope β1 on the windward side wave crest section 211 away from the clamp portion 220 and a smaller slope β2 on the windward side wave crest section 211 near the clamp portion 220. In this way, while ensuring that the fin 200 has sufficient width, the windward side wave crest section 211 away from the clamp portion 220 can significantly change the direction of the airflow adhering to the surface of the fin portion 210, thus enhancing the turbulence effect.

[0087] Continue reading Figure 3 On a plane perpendicular to the axis of the clamp section 220, the length L21 of the projection of the leeward side wave crest section 213 away from the clamp section 220 can be made smaller than the length L22 of the projection of the leeward side wave crest section 213 close to the clamp section 220.

[0088] like Figure 3 As shown, let L be the width of the sheet portion 210.

[0089] 0.1L≤L11≤0.24L, 0.26L≤L12≤0.4L,

[0090] 0.1L≤L21≤0.24L, 0.26L≤L22≤0.4L.

[0091] Those skilled in the art will understand that the above-described relationship between L11, L12, L21, and L22 and L ensures that the sheet portion 210 has sufficient width, while also ensuring that the windward side crest section 211 and the leeward side crest section 213 each have a suitable slope on their respective sides, thereby disturbing the airflow attached to the surface of the sheet portion 210.

[0092] Specifically, L11 can be any feasible value such as 0.1L, 0.15L, 0.18L, 0.2L, 0.225L, 0.24L, etc. L12 can be any feasible value such as 0.26L, 0.28L, 0.31L, 0.37L, 0.385L, 0.4L, etc. L21 can be any feasible value such as 0.1L, 0.15L, 0.18L, 0.2L, 0.225L, 0.24L, etc. L22 can be any feasible value such as 0.26L, 0.28L, 0.31L, 0.37L, 0.385L, 0.4L, etc.

[0093] like Figures 2 to 5 As shown, in some embodiments of this utility model, the sheet portion 210 further includes an upstream edge plate segment 214 and a downstream edge plate segment 215, which are perpendicular to the axis of the clamp portion 220. The upstream edge plate segment 214 and the downstream edge plate segment 215 are used to guide airflow.

[0094] Furthermore, the width of the upstream edge plate segment 214 and the downstream edge plate segment 215 can be selected from any value from 0.4mm to 5mm, such as any feasible value of 0.4mm, 0.5mm, 1mm, 1.2mm, 1.5mm, 1.8mm, 2mm, 2.5mm, 3mm, 4mm, 4.7mm, 5mm, etc.

[0095] Furthermore, those skilled in the art may, as needed, provide the upstream edge plate segment 214 and the downstream edge plate segment 215 with concave and convex structures (not shown in the figure) to disrupt the boundary layer on the surface of the airflow adhering to the upstream edge plate segment 214 and the downstream edge plate segment 215.

[0096] Furthermore, in some embodiments of this utility model, those skilled in the art may, as needed, provide a transition slope 2111 between the windward slope and the leeward slope of at least one of the windward side wave crest section 211 and the leeward side wave crest section 213, in order to weaken the eddy current.

[0097] like Figure 8 As shown, a transition slope 2111 can be provided between the windward slope and the leeward slope of the windward side wave crest section 211.

[0098] like Figure 9 As shown, a transition slope 2111 can be provided between the windward and leeward slopes of the windward crest section 211 and the leeward crest section 213 to weaken the eddy current.

[0099] like Figure 10 and Figure 11 As shown in the gray box, the airflow flows from left to right. Compared to the heat exchanger 001 without the transition slope 2111, the heat exchanger 001 with the transition slope 2111 has a significantly reduced vortex between two adjacent slopes, avoiding large vortices caused by the large bending amplitude between the windward slope and the leeward slope, and further reducing the wind resistance of the fins 200.

[0100] like Figure 13 and Figure 14 As shown, in some other embodiments, the difference from any of the preceding embodiments is that the fin 200 includes at least two rows of clamp sections 220. Furthermore, a connecting plate section 216 is provided between the windward side wave crest section 211 and the leeward side wave crest section 213 between adjacent rows of clamp sections 220 to prevent or weaken transverse vortices at the junction of the windward side wave crest section 211 and the leeward side wave crest section 213.

[0101] like Figure 14 As shown, the width L3 of the connecting plate segment 216 is selected from any value from 0.8mm to 10mm, specifically any feasible value such as 0.8mm, 1mm, 1.5mm, 1.9mm, 2.3mm, 3mm, 3.8mm, 4mm, 4.56mm, 5mm, 5.5mm, 6mm, 8mm, 9mm, 9.2mm, 10mm, etc.

[0102] like Figure 14As shown, in some other embodiments of this utility model, the connecting plate segment 216 may be perpendicular to the axis of the clamp portion 220.

[0103] like Figure 15 As shown, those skilled in the art can also, as needed, provide a concave-convex structure 2161 on the connecting plate segment 216 to disrupt the boundary layer on the surface of the connecting plate segment 216 where the airflow adheres. The height of the concave-convex structure 2161 protruding from the connecting plate segment 216 is selected from 0.2 mm to 0.5 × H2.

[0104] like Figure 16 As shown, those skilled in the art can also, as needed, Figure 14 The connecting plate segment 216 shown is configured as a V-shaped structure.

[0105] like Figure 17 As shown, the present invention also provides an air conditioner 002, which includes the heat exchanger 001 described in any of the preceding embodiments.

[0106] The air conditioner 002 of this utility model can be a split-type air conditioner or an integrated air conditioner.

[0107] Among them, split-type air conditioners, such as Figure 17 The 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.

[0108] Among them, the integrated air conditioner can be a window unit.

[0109] 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.

[0110] 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.

Claims

1. A fin, characterized in that, include: At least one row of pipe clamps is provided to allow refrigerant pipes to pass through and be thermally connected to the refrigerant pipes; The sheet portion includes a windward crest section, a trough section, and a leeward crest section connected in sequence. A row of the pipe clamps is arranged in the trough section in its extension direction. The height of the windward crest section is different from that of the leeward crest section to increase the structural strength of the sheet portion and to break the boundary layer on the surface of the airflow.

2. The fin according to claim 1, characterized in that, The height of either the windward side wave crest section or the leeward side wave crest section is greater than the height of the pipe clamp section. The height of the other of the windward side wave crest section and the leeward side wave crest section is less than the height of the pipe clamp section.

3. The fin according to claim 1, characterized in that, The one with the larger height value between the windward side wave crest and the leeward side wave crest is denoted as H1. The smaller of the height values ​​of the windward and leeward wave crests is denoted as H2. 1≤H1 / H2≤2.

5.

4. The fin according to claim 3, characterized in that, 1.1≤H1 / H2≤2.

5. The fin according to claim 1, characterized in that, On a plane perpendicular to the axis of the clamp, the length L11 of the projection of the windward crest segment away from the clamp is less than the length L12 of the projection of the windward crest segment near the clamp, and / or, the length L21 of the projection of the leeward crest segment away from the clamp is less than the length L22 of the projection of the leeward crest segment near the clamp.

6. The fin according to claim 5, characterized in that, Let the width of the sheet portion be denoted as L, then 0.1L≤L11≤0.24L, 0.26L≤L12≤0.4L, 0.1L≤L21≤0.24L, 0.26L≤L22≤0.4L.

7. The fin according to any one of claims 1 to 6, characterized in that, The fins include at least two rows of the clamp portions. Between two adjacent columns of the pipe clamp section, a connecting plate section is provided between the windward side wave crest section and the leeward side wave crest section.

8. The fin according to claim 7, characterized in that, The connecting plate segment is perpendicular to the axis of the pipe clamp; and / or The connecting plate segment is provided with an uneven structure to disrupt the boundary layer on the surface of the airflow.

9. The fin according to any one of claims 1 to 6, characterized in that, The sheet portion further includes an upstream edge plate segment and a downstream edge plate segment, which are perpendicular to the axis of the pipe clamp portion.

10. The fin according to claim 9, characterized in that, The upstream edge plate segment and the downstream edge plate segment are respectively provided with concave and convex structures to disrupt the boundary layer on the surface of the airflow adhering to the upstream edge plate segment and the downstream edge plate segment.

11. The fin according to any one of claims 1 to 6, characterized in that, A transition slope is provided between the windward slope and the leeward slope of at least one of the windward and leeward slopes to weaken the eddies.

12. A heat exchanger, characterized by include: The fins according to any one of claims 1 to 11; A refrigerant pipe passes through multiple fins and is thermally connected to the fins.

13. An air conditioner characterized by comprising: Includes the heat exchanger described in claim 12.

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