Highly different three-peak fin, heat exchanger and air conditioner

Abstract

This invention belongs to the field of heat exchanger technology, specifically providing a three-peak fin with varying heights, a heat exchanger, and an air conditioner. This invention aims to solve the problem of poor airflow disturbance effect in the existing fin body portion. The fin of this invention includes a fin body portion and at least one row of clamp portions, which allow refrigerant pipes to pass through and be thermally connected to the refrigerant pipes. The fin body portion includes a first peak, a middle peak, and a second peak distributed sequentially. The height of the first and second peaks is greater than or equal to the height of the middle peak. A row of clamp portions is arranged on the middle peak in its extending direction to increase the heat exchange area between the fin body portion and the clamp portions, and to disturb the airflow through the first, middle, and second peaks, thereby disrupting the boundary layer of the airflow adhering to the surface of the fin body portion. The height of either the first or second peak is greater than the height of the clamp portion, and the height of the middle peak is less than the height of the clamp portion, to enhance the airflow disturbance effect.

Description

Technical Field

[0001] This utility model belongs to the field of heat exchanger technology, and specifically provides a three-peak fin heat exchanger and air conditioner with different heights. 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] However, the existing fins have poor effect on airflow disturbance in the fin body, resulting in poor heat exchange performance. Utility Model Content

[0006] One objective of this invention is to solve the problem that the fin body of existing fins has a poor effect on airflow disturbance.

[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 first wave peak, a middle wave peak, and a second wave peak distributed sequentially. The heights of the first wave peak and the second wave peak are greater than or equal to the height of the middle wave peak. A row of tube clamps is arranged on the middle wave peak in its extending direction to increase the heat exchange area between the sheet portion and the tube clamps, and to disturb the airflow through the first wave peak, the middle wave peak, and the second wave peak, thereby breaking the boundary layer of the airflow adhering to the surface of the sheet portion. The height of one of the first wave peak and the second wave peak is greater than the height of the tube clamp, and the height of the middle wave peak is less than the height of the tube clamp, so as to disturb the airflow step by step.

[0010] Optionally, the height of the other of the first and second peaks may be greater than or less than the height of the clamp portion.

[0011] Optionally, the heights of the first peak, the intermediate peak, and the second peak are all different.

[0012] Optionally, the width of the middle wave peak is smaller than the outer diameter of the pipe clamp portion, the slope section of the first wave peak facing the middle wave peak is thermally connected to the pipe clamp portion, and the slope section of the second wave peak facing the middle wave peak is thermally connected to the pipe clamp portion, so as to increase the heat exchange area between the plate portion and the pipe clamp portion.

[0013] Optionally, the first wave crest and the middle wave crest are connected to each other at slopes that are close to each other, and a first phase connection is formed, the first phase connection or its extension line passing through the pipe clamp; and / or, the second wave crest and the middle wave crest are connected to each other at slopes that are close to each other, and a second phase connection is formed, the second phase connection or its extension line passing through the pipe clamp.

[0014] Optionally, the six slope segments of the first peak, the middle peak, and the second peak are connected sequentially, and the total length of the six slope segments is denoted as L; the lengths of the six slope segments along the direction from the first peak to the second peak are denoted as L1, L2, L3, L4, L5, and L6, respectively.

[0015] 0.1L≤L1≤0.2L, 0.17L≤L2≤0.3L,

[0016] 0.1L≤L3≤0.2L, 0.1L≤L4≤0.2L,

[0017] 0.17L≤L5≤0.3L, 0.1L≤L6≤0.2L.

[0018] Optionally, the height of the first peak is denoted as H1, and the height of the intermediate peak is denoted as H0, then 1≤H1 / H0≤2.5; and / or, the height of the second peak is denoted as H2, and 1≤H2 / H0≤2.5.

[0019] In a second aspect, this utility model provides a heat exchanger, comprising:

[0020] The fins as described in any one of the first aspects;

[0021] A refrigerant pipe passes through multiple fins and is thermally connected to the fins.

[0022] Optionally, the distance between two adjacent fins is denoted as S. Then the heights H1 and H2 of the first and second peaks satisfy: 0.5 ≤ H1 / S ≤ 1.2, 0.5 ≤ H2 / S ≤ 1.2.

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

[0024] Based on the foregoing description, those skilled in the art will understand that in the aforementioned technical solution of this utility model, by arranging a row of tube clamps in the extension direction of the mid-wave peak, the fin portion can increase the heat exchange area between itself and the tube clamps through the mid-wave peak. The airflow can be disturbed three times through the first wave peak, the mid-wave peak, and the second wave peak, effectively destroying the boundary layer on the surface of the fin portion. By making the height of one of the first and second wave peaks greater than the height of the tube clamps, and the height of the mid-wave peak less than the height of the tube clamps, the mid-wave peak and its adjacent peaks can disturb the airflow step by step, further enhancing the disturbance effect of the fin portion on the airflow. At the same time, since the height of the mid-wave peak is less than the height of the tube clamps, adjacent fins can abut against each other through the tube clamps, preventing the refrigerant pipe from being exposed between two adjacent fins.

[0025] Furthermore, by making the heights of the first, middle, and second peaks different, the sheet can make three significant changes to the direction of the airflow using the first, middle, and second peaks, thereby increasing the turbulence of the airflow and making it more effective in breaking the boundary layer on the surface of the sheet.

[0026] Furthermore, by connecting the slope sections where the first and middle wave peaks are close to each other, forming a first phase connection, and by having the first phase connection or its extension pass through the pipe clamp, the contact area between the plate and the pipe clamp is increased. This allows the plate to quickly absorb heat or cold energy (from the refrigerant pipe) from the pipe clamp and distribute it quickly and evenly throughout the entire plate. Correspondingly, by connecting the slope sections where the second and middle wave peaks are close to each other, forming a second phase connection, and by having the second phase connection or its extension pass through the pipe clamp, the contact area between the plate and the pipe clamp is increased. This allows the plate to quickly absorb heat or cold energy (from the refrigerant pipe) from the pipe clamp and distribute it quickly and evenly throughout the entire plate.

[0027] 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

[0028] 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:

[0029] 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);

[0030] Figure 2 This is a top view of the fins in some embodiments of this utility model;

[0031] Figure 3 yes Figure 2 A cross-sectional view of the middle fin along the AA direction (with the lengths of each slope segment labeled);

[0032] Figure 4 yes Figure 2 A cross-sectional view of the middle fin along the AA direction (the slope of each slope segment is marked);

[0033] Figure 5 yes Figure 2 A cross-sectional view of the middle fin along the BB direction (1 fin);

[0034] Figure 6 yes Figure 2 Cross-sectional view of the middle fin along the BB direction (2 fins);

[0035] Figure 7 This is a simulation diagram of airflow for fins with the same wave crest slope;

[0036] Figure 8 Yes Figures 2 to 6 The airflow simulation diagram of the fins shown;

[0037] Figure 9 This is a schematic diagram of another heat exchanger provided by this utility model (only a few fins are shown in detail);

[0038] Figure 10 This is a perspective view of the fins in some other embodiments of this utility model;

[0039] Figure 11 yes Figure 10 End view of the middle fin along the F direction;

[0040] Figure 12 This is a schematic diagram of an air conditioner provided by this utility model.

[0041] Explanation of reference numerals in the attached figures:

[0042] 001. Heat exchanger;

[0043] 100. Refrigerant pipe;

[0044] 200, Fin; 201, Airflow Channel; 210, Fin Body; 2101, First Phase Connection; 2102, Second Phase Connection; 211, First Peak; 212, Middle Peak; 213, Second Peak; 2141, First Slope; 2142, Second Slope; 2143, Third Slope; 2144, Fourth Slope; 2145, Fifth Slope; 2146, Sixth Slope; 2151, Upstream Edge Plate Segment; 2152, Downstream Edge Plate Segment; 216, Connecting Plate Segment; 220, Pipe Hoop; 221, Through Hole;

[0045] 002, Air conditioner; 300, Indoor unit of air conditioner; 400, Outdoor unit of air conditioner. Detailed Implementation

[0046] 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.

[0047] 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.

[0048] 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.

[0049] Furthermore, it should be noted that in the description of this utility model, mm represents millimeter, cm represents centimeter, and m represents meter.

[0050] 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.

[0051] For ease of understanding, the fins of this utility model will be described in detail below in conjunction with a heat exchanger.

[0052] 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.

[0053] 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.

[0054] like Figures 2 to 6 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.

[0055] like Figure 1 and Figure 2As 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.

[0056] like Figure 2 As shown, in the same column, the pipe spacing J between two adjacent pipe clamp sections 220 is selected from any value between 17.1mm and 22.5mm. Specifically, the pipe spacing J 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.

[0057] like Figure 2 As shown, the width W 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.

[0058] Furthermore, 0.8 ≤ J / W ≤ 1.22, and the ratio of J to W can be any feasible value such as 0.8, 0.85, 0.9, 0.95, 1.1, 1.15, 1.2, 1.22, etc.

[0059] like Figures 2 to 5 As shown, in some embodiments of this utility model, the sheet portion 210 includes a first wave peak 211, a middle wave peak 212, and a second wave peak 213 distributed sequentially. The heights of the first wave peak 211 and the second wave peak 213 are greater than or equal to the height of the middle wave peak 212. A row of pipe clamp portions 220 is arranged on the extension direction of the middle wave peak 212 to increase the heat exchange area between the sheet portion 210 and the pipe clamp portions 220, and to disturb the airflow through the first wave peak 211, the middle wave peak 212, and the second wave peak 213, thereby breaking the boundary layer of the airflow adhering to the surface of the sheet portion 210. The height of one of the first wave peak 211 and the second wave peak 213 is greater than the height of the pipe clamp portion 220, and the height of the middle wave peak 212 is less than the height of the pipe clamp portion 220, so as to disturb the airflow step by step.

[0060] Those skilled in the art will understand that by arranging a row of clamp portions 220 in the extension direction of the mid-wave peak 212, the plate portion 210 can increase the heat exchange area between itself and the clamp portions 220 through the mid-wave peak 212. The airflow can be disturbed three times by the first wave peak 211, the mid-wave peak 212, and the second wave peak 213, effectively destroying the boundary layer of the airflow adhering to the surface of the plate portion 210. By making the height of one of the first wave peak 211 and the second wave peak 213 greater than the height of the clamp portion 220, and making the height of the mid-wave peak 212 less than the height of the clamp portion 220, the mid-wave peak 212 and its adjacent peaks can disturb the airflow step by step, further improving the disturbance effect of the plate portion 210 on the airflow. At the same time, since the height of the mid-wave peak 212 is less than the height of the clamp portion 220, adjacent fins 200 can also abut against each other through the clamp portions 220, avoiding the refrigerant pipe 100 being exposed between two adjacent fins 200.

[0061] Furthermore, the height of the other of the first peak 211 and the second peak 213 is greater than or less than the height of the clamp portion 220.

[0062] Furthermore, the heights of the first peak 211, the middle peak 212, and the second peak 213 can all be different.

[0063] Those skilled in the art will understand that by making the heights of the first peak 211, the middle peak 212, and the second peak 213 all different, the sheet portion 210 can make three significant changes to the direction of the airflow by means of the first peak 211, the middle peak 212, and the second peak 213, thereby increasing the turbulence of the airflow and making it more conducive to breaking the boundary layer of the airflow attached to the surface of the sheet portion 210.

[0064] like Figure 4 As shown, let the height of the first peak 211 be denoted as H1, the height of the mid-peak 212 as H0, and the height of the second peak 213 as H2, then:

[0065] 1≤H1 / H0≤2.5, 1≤H2 / H0≤2.5.

[0066] Furthermore, 1.1≤H1 / H0≤2, 1.1≤H2 / H0≤2.

[0067] The ratio of H1 to H0 can be any feasible value, such as 1, 1.1, 1.2, 1.3, 1.5, 1.7, 1.9, 2, 2.1, 2.3, or 2.5. Similarly, the ratio of H2 to H0 can be any feasible value, such as 1, 1.1, 1.2, 1.3, 1.5, 1.7, 1.9, 2, 2.1, 2.3, or 2.5.

[0068] For example, H1 = H2 > H0; or, H1 > H2 > H0; or, H2 > H1 > H0; or, H1 > H0 > H2; or, H2 > H0 > H1.

[0069] like Figures 2 to 5 As shown, in some embodiments of this utility model, the width (L3+L4) of the middle wave peak 212 is smaller than the outer diameter D of the clamp portion 220. Furthermore, the slope section of the first wave peak 211 facing the middle wave peak 212 is thermally connected to the clamp portion 220, and the slope section of the second wave peak 213 facing the middle wave peak 212 is also thermally connected to the clamp portion 220, thereby increasing the heat exchange area between the sheet portion 210 and the clamp portion 220.

[0070] like Figure 2 and Figure 3 As shown, the first wave peak 211 and the middle wave peak 212 are connected at their close slopes and form a first phase connection 2101. The first phase connection 2101 or its extension line passes through the pipe clamp 220 so that the plate body 210 can quickly absorb the heat or cold energy (from the refrigerant pipe 100) of the pipe clamp 220 and can quickly and evenly distribute it to the entire plate body 210.

[0071] Correspondingly, the slope sections of the second wave peak 213 and the middle wave peak 212 that are close to each other are connected to form a second phase connection 2102. The second phase connection 2102 or its extension line passes through the pipe clamp 220 so that the plate body 210 can quickly absorb the heat or cold energy (from the refrigerant pipe 100) of the pipe clamp 220 and can quickly and evenly distribute it to the entire plate body 210.

[0072] like Figure 3 As shown, the six slope segments of the first peak 211, the middle peak 212, and the second peak 213 are connected in sequence and are respectively denoted as the first slope segment 2141, the second slope segment 2142, the third slope segment 2143, the fourth slope segment 2144, the fifth slope segment 2145, and the sixth slope segment 2146.

[0073] Let the total length of the six slope segments be L, and let the lengths of the six slope segments be L1, L2, L3, L4, L5, and L6 respectively along the direction from the first peak 211 to the second peak 213. Then:

[0074] 0.1L≤L1≤0.2L, 0.17L≤L2≤0.3L,

[0075] 0.1L≤L3≤0.2L, 0.1L≤L4≤0.2L,

[0076] 0.17L≤L5≤0.3L, 0.1L≤L6≤0.2L.

[0077] For example, L1 can be any feasible value such as 0.1L, 0.11L, 0.13L, 0.15L, 0.18L, 0.2L, etc. L2 can be any feasible value such as 0.17L, 0.19L, 0.2L, 0.23L, 0.236L, 0.25L, 0.28L, 0.3L, etc. L3 can be any feasible value such as 0.1L, 0.11L, 0.13L, 0.15L, 0.18L, 0.2L, etc. L4 can be any feasible value such as 0.1L, 0.11L, 0.13L, 0.15L, 0.18L, 0.2L, etc. L5 can be any feasible value such as 0.17L, 0.19L, 0.2L, 0.23L, 0.236L, 0.25L, 0.28L, 0.3L, etc. L6 can be any feasible value such as 0.1L, 0.11L, 0.13L, 0.15L, 0.18L, 0.2L, etc.

[0078] like Figure 6 As shown, in heat exchanger 001, the distance between two adjacent fins 200 is denoted as S. Then, the height H1 of the first peak 211 and the height H2 of the second peak 213 satisfy the following:

[0079] 0.5≤H1 / S≤1.2, 0.5≤H2 / S≤1.2.

[0080] The ratio of H1 to S can be any feasible value such as 0.5, 0.6, 0.75, 0.8, 0.9, 1, 1.1, or 1.2. The ratio of H2 to S can also be any feasible value such as 0.5, 0.6, 0.75, 0.8, 0.9, 1, 1.1, or 1.2.

[0081] Those skilled in the art will understand that, due to the presence of wave crests on the fins 200, a reciprocatingly bent airflow channel 201 is formed between two adjacent fins 200. If the airflow channel 201 is too narrow, the obstruction of the airflow by the wave crests will be intensified, and the wind resistance will increase. If the airflow channel 201 is too wide, the disturbance effect of the wave crests on the airflow will be poor, and the heat exchange performance of the heat exchanger 001 will also be poor.

[0082] This invention, by ensuring that H1, H2, and S satisfy the aforementioned functional relationship, avoids both excessively small and excessively large spacing between fins 200, ensuring that the spacing between fins 200 is coordinated with the maximum peak height on the fin body 210, thereby improving the overall performance of the heat exchanger 001.

[0083] like Figure 3 and Figure 4As shown, in some embodiments of the present invention, at least one of the first wave crest 211 and the second wave crest 213 has a slope in the section of the slope away from the middle wave crest 212 that is greater than the slope in the section of the slope near the middle wave crest 212, so as to reduce or weaken the eddy current.

[0084] Those skilled in the art will understand that by making the slope of at least one of the first wave crest 211 and the second wave crest 213, the slope of the section farther from the middle wave crest 212 greater than the slope of the section closer to the middle wave crest 212, the vortex is reduced or weakened, thereby reducing the pressure loss of the airflow. Simultaneously, by arranging a row of pipe clamps 220 in the extending direction of the middle wave crest 212, the plate portion 210 can increase the heat exchange area between itself and the pipe clamps 220 by means of the middle wave crest 212.

[0085] like Figure 4 As shown, the slopes of the six slope segments of the first peak 211, the middle peak 212, and the second peak 213 are denoted as β1, β2, β3, β4, β5, and β6 in the direction from the first peak 211 to the second peak 213. Then, β1 > β2 > β3, and β4 < β5 < β6.

[0086] Alternatively, β3 = β4.

[0087] For example, the plane containing the axis of the same column of pipe clamps 220 is designated as the reference plane (not shown in the figure), and the first peak 211, the middle peak 212 and the second peak 213 are symmetrically arranged with respect to the reference plane.

[0088] Furthermore, 5°≤β1≤25°, 10°≤β2≤22°, 5°≤β3≤20°, 5°≤β4≤20°, 10°≤β5≤22°, and 15°≤β6≤25°.

[0089] Specifically, β1 can be any feasible value such as 5°, 7°, 8.5°, 10°, 11°, 13°, 15°, 17°, 18°, 20°, 21°, 22°, 23.5°, or 25°. β2 can be any feasible value such as 10°, 11°, 13°, 15°, 17°, 18°, 20°, 21°, or 22°. β3 can be any feasible value such as 5°, 7°, 8.5°, 10°, 11°, 13°, 15°, 17°, 18°, or 20°. β4 can be any feasible value such as 5°, 7°, 8.5°, 10°, 11°, 13°, 15°, 17°, 19°, or 20°. β5 can be any feasible value such as 10°, 11°, 13°, 15°, 17°, 18°, 20°, 21°, 22°, etc. β6 can be any feasible value such as 15°, 17°, 18°, 20°, 21°, 22°, 22.5°, 24°, 25°, etc.

[0090] like Figure 5 As shown, in some embodiments of this utility model, the diameter of the through hole 221 through which the refrigerant pipe 100 penetrates the clamp portion 220 is denoted as d.

[0091] 3.5≤d / H1≤11, 4.5≤d / H0≤11, 3.5≤d / H2≤11.

[0092] Specifically, the ratio of d to H1 can be any feasible value, such as 3.5, 4, 4.7, 5, 5.3, 6, 7, 7.8, 9, 10, 10.6, or 11. The ratio of d to H0 can also be any feasible value, such as 4.5, 5, 5.3, 6, 7, 7.8, 9, 10, 10.6, or 11. The ratio of d to H2 can also be any feasible value, such as 3.5, 4, 4.7, 5, 5.3, 6, 7, 7.8, 9, 10, 10.6, or 11.

[0093] Furthermore, 3.7≤d / H1≤7.8, 4.8≤d / H0≤7.8, and 3.7≤d / H2≤7.8.

[0094] Those skilled in the art will understand that by ensuring that H1, H0, H2 and d satisfy the above relationships, the heat exchange performance between the fins 200 and the refrigerant pipe 100 is ensured, while also ensuring the disturbance performance of the first peak 211, the middle peak 212 and the second peak 213 on the airflow.

[0095] The following reference Figure 7 and Figure 8 The effect of fin 200 on airflow is illustrated using the airflow at the first peak 211 as an example. Figure 7 This is a simulation diagram of airflow for fin 200 with the same wave crest slope. Figure 8 Yes Figures 2 to 6 The simulated airflow diagram at the first peak 211 of the fin 200 is shown.

[0096] like Figure 7 and Figure 8 As indicated by the arrows, the airflow moves from right to left. Compared to fins 200 with the same crest slope, fins 200 with different crest slopes have different crest depressions (e.g.,...). Figure 8 The vortex at the bottom side of the first wave peak 211 (as shown) is greatly reduced, effectively reducing the wind resistance of the fin 200.

[0097] like Figures 3 to 6As shown, in some embodiments of this utility model, the sheet portion 210 further includes an upstream edge plate segment 2151 and a downstream edge plate segment 2152, which are perpendicular to the axis of the clamp portion 220. The upstream edge plate segment 2151 and the downstream edge plate segment 2152 are used to guide airflow.

[0098] like Figure 3 As shown, the widths of the upstream edge plate segment 2151 and the downstream edge plate segment 2152 can be the same and denoted as E. E can be selected from any value from 0.4mm to 5mm, such as any feasible value like 0.4mm, 0.5mm, 1mm, 1.2mm, 1.5mm, 1.8mm, 2mm, 2.5mm, 3mm, 4mm, 4.7mm, 5mm, etc.

[0099] Furthermore, those skilled in the art may, as needed, provide the upstream edge plate segment 2151 and the downstream edge plate segment 2152 with concave and convex structures respectively, in order to disrupt the boundary layer on the surface of the airflow adhering to the upstream edge plate segment 2151 and the downstream edge plate segment 2152.

[0100] like Figure 10 and Figure 11 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 portions 220. Furthermore, a connecting plate segment 216 may be provided at the junction of the first wave crest 211 and the second wave crest 213 between adjacent rows of clamp portions 220 to prevent or weaken transverse vortices at the junction of the first wave crest 211 and the second wave crest 213.

[0101] like Figure 11 As shown, the width 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 11 As 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] Furthermore, those skilled in the art may, as needed, provide a concave-convex structure on the connecting plate segment 216 to disrupt the boundary layer on the surface of the airflow adhering to the connecting plate segment 216.

[0104] like Figure 12As shown, the present invention also provides an air conditioner 002, which includes the heat exchanger 001 described in any of the preceding embodiments.

[0105] The air conditioner 002 of this utility model can be a split-type air conditioner or an integrated air conditioner.

[0106] Among them, split-type air conditioners, such as Figure 12 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.

[0107] Among them, the integrated air conditioner can be a window unit.

[0108] 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.

[0109] 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 first wave peak, a middle wave peak, and a second wave peak distributed sequentially. The heights of the first wave peak and the second wave peak are greater than or equal to the height of the middle wave peak. A row of tube clamps is arranged on the middle wave peak in its extending direction to increase the heat exchange area between the sheet portion and the tube clamps, and to disturb the airflow through the first wave peak, the middle wave peak, and the second wave peak, thereby breaking the boundary layer of the airflow adhering to the surface of the sheet portion. The height of one of the first wave peak and the second wave peak is greater than the height of the tube clamp, and the height of the middle wave peak is less than the height of the tube clamp, so as to disturb the airflow step by step.

2. The fin according to claim 1, characterized in that, The height of the other of the first and second peaks is greater than or less than the height of the clamp portion.

3. The fin according to claim 2, characterized in that, The heights of the first peak, the middle peak, and the second peak are all different.

4. The fin according to claim 1, characterized in that, The width of the mid-wave peak is smaller than the outer diameter of the clamp portion. The slope section of the first wave peak facing the middle wave peak is thermally connected to the pipe clamp, and the slope section of the second wave peak facing the middle wave peak is thermally connected to the pipe clamp, so as to increase the heat exchange area between the plate part and the pipe clamp.

5. The fin according to claim 4, characterized in that, The first wave crest and the middle wave crest are connected at slopes that are close to each other, forming a first phase connection. The first phase connection or its extension passes through the clamp portion; and / or, The second wave crest and the middle wave crest are connected to each other in a slope section that is close to each other, and a second phase connection is formed. The second phase connection or its extension line passes through the pipe clamp.

6. The fin according to claim 1, characterized in that, The six slope segments of the first wave crest, the middle wave crest, and the second wave crest are connected in sequence, and the total length of the six slope segments is denoted as L; Let the lengths of the six slope segments along the direction from the first crest to the second crest be denoted as L1, L2, L3, L4, L5, and L6, respectively. 0.1L≤L1≤0.2L, 0.17L≤L2≤0.3L, 0.1L≤L3≤0.2L, 0.1L≤L4≤0.2L, 0.17L≤L5≤0.3L, 0.1L≤L6≤0.2L.

7. The fin according to claim 1, characterized in that, Let the height of the first peak be denoted as H1, and the height of the intermediate peak be denoted as H0, then 1 ≤ H1 / H0 ≤ 2.5; and / or, The height of the second peak is denoted as H2, and 1 ≤ H2 / H0 ≤ 2.

5.

8. A heat exchanger, characterized by include: The fins according to any one of claims 1 to 7; A refrigerant pipe passes through multiple fins and is thermally connected to the fins.

9. The heat exchanger according to claim 8, wherein, Let S be the distance between two adjacent fins. Then the heights H1 and H2 of the first and second peaks satisfy the following: 0.5≤H1 / S≤1.2, 0.5≤H2 / S≤1.

2.

10. An air conditioner, characterized in that, Includes the heat exchanger described in claim 8 or 9.

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