Heat exchanger and air conditioner with corrugated fins

Abstract

This utility model belongs to the field of heat exchanger technology, specifically providing a heat exchanger and air conditioner with corrugated fins. To solve the problem of low heat exchange efficiency in existing heat exchangers, the heat exchanger of this utility model includes fins and refrigerant pipes. The fins include a fin body and at least one row of pipe clamps. The pipe clamps are provided with through holes to allow the refrigerant pipes to pass through, enabling thermal connection between the refrigerant pipes and the pipe clamps. The fin body is corrugated, forming crests, troughs, and multiple slopes, with at least a portion of the slopes having multiple strip-shaped slits. This utility model improves the heat exchange efficiency of the heat exchanger and overcomes the aforementioned technical problems.

Description

Technical Field

[0001] This utility model belongs to the field of heat exchanger technology, and specifically provides a heat exchanger and air conditioner with corrugated fins. 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. To improve the heat exchange efficiency, existing technologies typically use fins with features such as open fins (multiple oblique holes are stamped into the fins using a stamping process), corrugated fins, or dotted fins (multiple protrusions are stamped into the fins using a stamping process) to disturb the airflow passing through the fins and allow more air to come into contact with them.

[0004] Even so, some airflow still adheres to the surface of the fins (especially on the windward side), forming a boundary layer. Because this boundary layer separates other air from the fins, other air can only exchange heat indirectly with the fins through the boundary layer, resulting in relatively low heat exchange efficiency in existing heat exchangers, which needs further improvement. Utility Model Content

[0005] One objective of this invention is to solve the problem of low heat exchange efficiency in existing heat exchangers.

[0006] To achieve the above objectives, the present invention provides a heat exchanger in a first aspect, comprising fins and refrigerant pipes. The fins include a fin body portion and at least one row of pipe clamp portions. The pipe clamp portions are provided with through holes for allowing the refrigerant pipes to pass through, so as to thermally connect the refrigerant pipes with the pipe clamp portions. The fin body portion is corrugated to form crests, troughs and multiple slopes, and at least some of the slopes are provided with multiple strip slits.

[0007] Optionally, at least one of the strip slots on the slope is inclined and has an angle α with respect to the width direction of the fin, where 45°≤α≤90°.

[0008] Optionally, on the same slope segment where the strip joints are inclined, two adjacent strip joints have opposite inclination directions.

[0009] Optionally, each of the strip-shaped slots corresponds to a baffle plate protruding from the surface of the sheet body; all the baffle plates are located on one or both sides of the sheet body.

[0010] Optionally, on the same slope section, all the spoilers are located on one or both sides of the slope section.

[0011] Optionally, the height of the turbulence deflector protruding from the deflector body is denoted as Hp, the height of the slope section is denoted as Hd, and the distance between two adjacent fins is denoted as S. Then, 0.3·Hd≤Hp≤0.7·S.

[0012] Optionally, the width of the slope segment is denoted as L1, and the width of the slope segment is parallel to the extension direction of the slope segment. The length of the strip joint is denoted as Lf, then 0.8mm≤Lf≤0.4·L1.

[0013] Optionally, on each of the slope segments, the distance between the windward end and the leeward end of the slope segment closest to the strip joint and the strip joint is denoted as L2, then 0.1≤L2 / L1≤0.5.

[0014] Optionally, let P be the width of the sheet portion, Lk be the distance between the plane containing the central axis of each strip slit and the adjacent column of the clamp portion, and D be the diameter of the through hole of the clamp portion. Then a·D≤Lk≤b·P.

[0015] Where 1.5≤a≤1.9, 0.3≤b≤0.4.

[0016] Optionally, each of the slope segments is provided with a plurality of the strip slots; and / or, on each of the slope segments, at least one of the strip slots is distributed between two adjacent pipe clamps; and / or, on each of the slope segments, the strip slots are located near the windward or leeward end of the slope segment; and / or, in the two slope segments corresponding to the wave crest, the number of the strip slots on the slope segment farther from the pipe clamp is greater than the number of the strip slots on the slope segment closer to the pipe clamp.

[0017] Optionally, the heat exchanger is suitable for an air conditioner.

[0018] The present invention provides an air conditioner in a second aspect, comprising the heat exchanger described in any one of the first aspects.

[0019] 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 plate part to be corrugated and opening multiple strip slits on at least part of the slope section, the airflow in the boundary layer will pass through the slope section when it flows through the strip slits, thereby forming turbulence areas that disrupt the boundary layer on the opposite sides of the slope section, thereby improving the heat exchange efficiency of the heat exchanger.

[0020] Furthermore, by having each strip-shaped slit correspond to a baffle plate protruding from the surface of the plate, the airflow within the boundary layer can be further disturbed by the baffle plate, thereby allowing more air to contact and exchange heat with the plate, thus improving the heat exchange efficiency of the heat exchanger.

[0021] 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

[0022] 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:

[0023] 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);

[0024] Figure 2 This is a schematic diagram of another heat exchanger provided by this utility model (only a few fins are shown in detail);

[0025] Figure 3 This is a top view of the fins having one row of tube clamps in the first embodiment of this utility model;

[0026] Figure 4 yes Figure 3 A three-dimensional view of the central Q section;

[0027] Figure 5 yes Figure 3 Cross-sectional view of the middle fin along the AA direction;

[0028] Figure 6 yes Figure 3 A cross-sectional view of the middle fin along the BB direction (1 fin);

[0029] Figure 7 yes Figure 3 Cross-sectional view of the middle fin along the BB direction (2 fins);

[0030] Figure 8 This is a perspective view of a partial structure of the fins in the second embodiment of this utility model;

[0031] Figure 9 yes Figure 8 Cross-sectional view of the middle fin along the CC direction;

[0032] Figure 10 In the third embodiment of this utility model, the fins are along Figure 8 A cross-sectional view along the CC direction;

[0033] Figure 11 This is a top view of the fins having one row of tube clamps in the fourth embodiment of this utility model;

[0034] Figure 12 This is a top view of the fins having one row of tube clamps in the fifth embodiment of this utility model;

[0035] Figure 13 This is a top view of the fins having one row of tube clamps in the sixth embodiment of this utility model;

[0036] Figure 14 This is a top view of the fins having one row of tube clamps in the seventh embodiment of this utility model;

[0037] Figure 15 This is a simulation diagram of the airflow in an existing heat exchanger;

[0038] Figure 16 This is a simulation diagram of the airflow of the heat exchanger in the first embodiment of this utility model;

[0039] Figure 17 This is a simulation diagram of the airflow of the heat exchanger in the third embodiment of this utility model;

[0040] Figure 18 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. Fin; 110. Fin body; 110a. Windward section; 110b. Leeward section; 101. Strip slot; 102. Baffle; 1101. Crest; 1102. Trough; 112. Slope section; 120. Hoop section; 121. Through hole; 130. Reference surface;

[0044] 200. Refrigerant pipe;

[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] 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.

[0052] 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.

[0053] 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.

[0054] like Figures 3 to 6 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 tube clamp portions 120.

[0055] like Figure 3 As shown, in the same column, the pipe spacing J (axial distance) between two adjacent pipe clamp sections 120 is selected from any value between 17.2mm and 22mm. Specifically, the pipe spacing J can be any feasible value such as 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, 22mm, etc.

[0056] like Figure 3 and Figure 4 As shown, the clamp part 120 is provided with a through hole 121, which is used to allow the refrigerant pipe 200 to pass through so that the refrigerant pipe 200 is thermally connected to the clamp part 120.

[0057] like Figure 3 and Figure 4 As shown, the plane containing the central axis of each column of pipe clamps 120 is designated as the reference plane 130. The sheet portion 110 includes a windward portion 110a located on the windward side of the reference plane 130 and a leeward portion 110b located on the leeward side of the reference plane 130.

[0058] like Figures 4 to 7 As shown, in the first embodiment of this utility model, the sheet portion 110 is corrugated to form crests 1101, troughs 1102, and multiple slope sections 112. At least some of the slope sections 112 have multiple strip-shaped slots 101.

[0059] like Figures 3 to 6 As shown, both the windward section 110a and the leeward section 110b are provided with multiple strip slots 101 and multiple spoilers 102. Each spoiler 102 corresponds to a strip slot 101, and the spoiler 102 protrudes from the windward section 110a or the leeward section 110b.

[0060] Optionally, the sum of the surface areas M1 of all the spoilers 102 on the windward side (windward portion 110a) and the sum of the surface areas M2 of all the spoilers 102 on the leeward side (leeward portion 110b) can be the same or different.

[0061] For example, the ratio of the sum of the surface areas M1 of all the spoilers 102 on the windward side (windward portion 110a) to the sum of the surface areas M2 of all the spoilers 102 on the leeward side (leeward portion 110b) is less than or equal to 0.9.

[0062] The ratio of M1 to M2 can be any feasible value such as 0.9, 0.85, 0.8, 0.79, 0.76, 0.73, 0.7, 0.6, 0.5, or 0.43.

[0063] Specifically, in the first embodiment of this utility model, the size of the spoiler 102 on the windward side and the spoiler 102 on the leeward side can be the same, but the number is different. For example, the number of spoilers 102 on the windward side is less than the number of spoilers 102 on the leeward side. Alternatively, the number of spoilers 102 on the windward side and the spoiler 102 on the leeward side can be the same, but the size is different. For example, the size of the spoiler 102 on the windward side is smaller than the size of the spoiler 102 on the leeward side.

[0064] Please see Figure 3 Those skilled in the art can omit the following based on actual needs: Figure 3 The strip seam 101 is shown by the dashed line.

[0065] like Figures 4 to 7 As shown, in the first embodiment of this utility model, the slot 101 can be a hole formed by a stamping process, and thus each slot 101 corresponds to a baffle 102. That is, each slot 101 corresponds to a baffle 102 protruding from the surface of the plate body 110.

[0066] like Figures 4 to 7 As shown, the spoiler 102 can be a bridge plate with both ends connected to the windward portion 110a or the leeward portion 110b.

[0067] Furthermore, all the spoilers 102 are located on one or both sides of the body portion 110.

[0068] Furthermore, the spoilers 102 on the windward portion 110a are distributed on one or both sides of the windward portion 110a; and / or, the spoilers 102 on the leeward portion 110b are distributed on one or both sides of the windward portion 110a.

[0069] from Figures 4 to 7 As can be seen from the first embodiment of this utility model, on the same slope 112, all the baffles 102 are located on both sides of the slope 112.

[0070] Of course, in other embodiments of this utility model, those skilled in the art can also, as needed, place all the baffles 102 on one side of the same slope 112.

[0071] like Figure 3 , Figure 6 and Figure 7 As shown, in the first embodiment of this utility model, the height of the turbulence plate 102 protruding from the plate body portion 110 is denoted as Hp, the height of the slope section 112 is denoted as Hd, and the distance between two adjacent fins 100 is denoted as S. Then, 0.3·Hd≤Hp≤0.7·S.

[0072] Furthermore, 0.4·Hd≤Hp≤0.6·S.

[0073] For example, Hp can be any feasible value such as 0.3Hd, 0.35Hd, 0.37Hd, 0.4Hd, 0.45Hd, 0.5Hd, 0.6Hd, 0.7S, 0.65S, 0.6S, 0.5S, 0.4S, etc.

[0074] like Figure 3 and Figure 6 As shown, in the first embodiment of this utility model, the width of the slope segment 112 is denoted as L1, and the width of the slope segment 112 is parallel to the extension direction of the slope segment 112. The length of the strip joint 101 is denoted as Lf.

[0075] 0.8mm≤Lf≤0.4·L1.

[0076] Furthermore, 1mm≤Lf≤0.3·L1.

[0077] For example, Lf can be any feasible value such as 0.8mm, 0.85mm, 0.9mm, 1mm, 1.2mm, 1.5mm, 2mm, 3mm, 0.4L1, 0.35L1, 0.32L1, 0.3L1, 0.2L1, etc.

[0078] Continue reading Figure 3 and Figure 6As shown, in the first embodiment of this utility model, on each slope segment 112, the distance between the windward end and the leeward end of the slope segment 112 closest to the strip joint 101 and the strip joint 101 is denoted as L2.

[0079] 0.1≤L2 / L1≤0.5.

[0080] Furthermore, 0.2 ≤ L2 / L1 ≤ 0.4.

[0081] For example, the ratio of L2 to L1 can be any feasible value such as 0.1, 0.15, 0.2, 0.3, 0.35, 0.4, 0.42, 0.5, etc.

[0082] like Figure 3 and Figure 5 As shown, in the first embodiment of this utility model, the width of the sheet portion 110 is denoted as P, the distance between each strip slit 101 and the plane (reference plane 130) where the central axis of the adjacent column of pipe clamp portions 120 is located is denoted as Lk, and the diameter of the through hole 121 of the pipe clamp portion 120 is denoted as D.

[0083] a·D≤Lk≤b·P,

[0084] Where 1.5≤a≤1.9, 0.3≤b≤0.4.

[0085] like Figures 3 to 7 As shown, in the first embodiment of this utility model, each slope section 112 is provided with multiple strip joints 101.

[0086] Continue reading Figures 3 to 7 In the first embodiment of this utility model, at least one strip-shaped slit 101 is distributed between two adjacent pipe clamps 120 on each slope section 112.

[0087] Continue reading Figures 3 to 7 In the first embodiment of this utility model, on each slope section 112, the strip-shaped slot 101 is close to the windward end or the leeward end of the slope section 112.

[0088] like Figures 8 to 9 As shown, in the second embodiment of this utility model, the spoiler 102 can also be an oblique piece with one end connected to the windward portion 110a or the leeward portion 110b. For other details in the second embodiment of this utility model, please refer to the preceding description of the first embodiment.

[0089] like Figure 10As shown, in the third embodiment of this utility model, the spoiler 102 can also be an oblique piece whose two ends are connected to the windward portion 110a or the leeward portion 110b, and the spoiler 102 passes through its corresponding strip slit 101. For other contents of the third embodiment of this utility model, please refer to the description of the first embodiment above.

[0090] like Figure 11 As shown, in the fourth embodiment of this utility model, in the two slope sections 112 corresponding to the crest 1101, the length of the strip slit 101 on the slope section 112 farther from the clamp part 120 is greater than the length of the strip slit 101 on the slope section 112 closer to the clamp part 120. For other details in the fourth embodiment of this utility model, please refer to the description of the first embodiment above.

[0091] like Figure 12 As shown, in the fifth embodiment of this utility model, in the two slope segments 112 corresponding to the crest 1101, at least one of the slope segments 112 has an inclined strip slit 101, and there is an angle α between it and the width direction of the fin 100, where 45°≤α≤90°. Specifically, α can be any feasible value such as 45°, 46°, 50°, 55°, 58°, 60°, 70°, 75°, 80°, 88°, or 90°. For other details in the fifth embodiment of this utility model, please refer to the preceding description of the first embodiment.

[0092] like Figure 13 As shown, in the sixth embodiment of this utility model, in the two slope sections 112 corresponding to the crest 1101, the number of strip slots 101 on the slope section 112 farther from the clamp portion 120 is greater than the number of strip slots 101 on the slope section 112 closer to the clamp portion 120. For other details in the sixth embodiment of this utility model, please refer to the preceding description of the first embodiment.

[0093] like Figure 14 As shown, in the seventh embodiment of this utility model, with Figure 12 The fifth embodiment shown differs in that, on the same slope 112 where the strip 101 is inclined, the inclination directions of two adjacent strip 101 are opposite.

[0094] It should be noted that, Figures 11 to 14 The strip slit 101 shown by the dashed line is optional. Those skilled in the art can make the strip slit 101 present at the dashed line or not, depending on actual needs.

[0095] The following reference Figure 15 , Figure 16 and Figure 17The destructive effect of the fins 100 on the boundary layer of the heat exchanger 001 of this utility model will be briefly explained. Figure 15 This is a simulation diagram of the airflow in the existing heat exchanger 001. Figure 16 This is a simulation diagram of the airflow of heat exchanger 001 in the first embodiment of this utility model. Figure 17 This is a simulation diagram of the airflow of heat exchanger 001 in the third embodiment of this utility model.

[0096] exist Figures 15 to 17 The middle boundary layer is the darker colored area on both sides of the sheet portion 110 (slope section 112).

[0097] By Figure 16 and Figure 15 Compare and... Figure 17 and Figure 15 By comparison, it can be clearly seen that the fins 100 of this utility model cause more significant damage to the boundary layer, which can significantly improve the heat exchange efficiency of the heat exchanger 001.

[0098] It should be noted that the heat exchanger 001 described in any of the preceding embodiments is applicable to air conditioners.

[0099] like Figure 18 As shown, the present invention also provides an air conditioner 002, which includes the heat exchanger 001 described in any of the preceding embodiments.

[0100] The air conditioner 002 of this utility model can be a split-type air conditioner or an integrated air conditioner.

[0101] Among them, split-type air conditioners, such as Figure 18 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.

[0102] Among them, the integrated air conditioner can be a window unit.

[0103] 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.

[0104] 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 heat exchanger, characterized in that, Includes fins and refrigerant pipes, wherein the fins include a fin body and at least one row of pipe clamps. The pipe clamp is provided with a through hole, which allows the refrigerant pipe to pass through so as to thermally connect the refrigerant pipe to the pipe clamp. The sheet portion is corrugated to form crests, troughs and multiple slopes, with at least a portion of the slopes having multiple strip-shaped slits.

2. The heat exchanger according to claim 1, characterized in that, The strip slot on at least one of the slope sections is inclined and has an angle α with respect to the width direction of the fin, where 45°≤α≤90°.

3. The heat exchanger according to claim 2, characterized in that, On the same slope segment where the strip joints are inclined, the inclination directions of two adjacent strip joints are opposite.

4. The heat exchanger according to claim 1, characterized in that, Each of the strip-shaped slots corresponds to a baffle plate protruding from the surface of the sheet body; All of the aforementioned baffles are located on one or both sides of the plate body.

5. The heat exchanger according to claim 4, characterized in that, On the same slope section, all of the spoilers are located on one or both sides of the slope section.

6. The heat exchanger according to claim 4, characterized in that, Let Hp be the height of the fin protruding from the fin body, Hd be the height of the slope section, and S be the distance between two adjacent fins. 0.3·Hd≤Hp≤0.7·S.

7. The heat exchanger according to claim 1, characterized in that, Let the width of the slope segment be denoted as L1, and the width of the slope segment be parallel to the extension direction of the slope segment. Let the length of the strip joint be denoted as Lf. 0.8mm≤Lf≤0.4·L1.

8. The heat exchanger according to claim 7, characterized in that, On each of the aforementioned slope sections, the distance between the windward and leeward ends of the slope section closest to the strip joint and the strip joint is denoted as L2. 0.1≤L2 / L1≤0.

5.

9. The heat exchanger according to claim 1, characterized in that, Let P be the width of the sheet portion, Lk be the distance between the plane containing the central axis of each strip slit and the adjacent column of the clamp portion, and D be the diameter of the through hole of the clamp portion. Then a·D≤Lk≤b·P, Where 1.5≤a≤1.9, 0.3≤b≤0.

4.

10. The heat exchanger according to claim 1, characterized in that, Each of the aforementioned slope sections is provided with multiple of the aforementioned strip joints; and / or, On each of the aforementioned slope sections, at least one of the aforementioned strip-shaped slots is distributed between two adjacent pipe clamp portions; and / or, On each of the aforementioned slope sections, the strip-shaped slot is located near the windward or leeward end of the slope section; and / or, In the two slope segments corresponding to the wave crest, the number of strip slots on the slope segment farther from the pipe clamp is greater than the number of strip slots on the slope segment closer to the pipe clamp.

11. The heat exchanger according to any one of claims 1 to 10, characterized in that, The heat exchanger is suitable for air conditioners.

12. An air conditioner, characterized in that, The heat exchanger includes any one of claims 1 to 10.

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