Multi-section integrated fin for enhancing heat exchange

Abstract

The invention discloses a multi-section integrated fin for enhancing heat exchange, belongs to the technical field of air conditioning devices, and solves the technical problems that a traditional V-shaped heat exchanger in the prior art is poor in water drainage and waste in heat exchange efficiency, the wind field of a centrifugal fan is not uniform, the heat exchanger cannot be completely matched with the wind field, the wind field collaboration of the heat exchanger is poor, and the production efficiency is low. A fin body is of an integrated structure, pipe holes allowing heat exchange pipes to penetrate through conveniently are distributed in the fin body, bridges used for enhancing heat exchange are distributed among the pipe holes, the fin body is divided into an upper section area, a middle section area and a lower section area from top to bottom, the number of the bridges in the upper section area, the number of the bridges in the middle section area and the number of the bridges in the lower section area are different, and the sizes of the bridges are different. A convex hull is further arranged in the middle section area.

Description

Technical Field

[0001] This invention relates to the field of air conditioning technology, specifically to a multi-segment integrated fin design for enhanced heat exchange. Background Technology

[0002] Traditional V-type heat exchangers use a two-piece heat exchange splicing scheme, which cannot be processed as a whole. The splicing area is sealed with a sealing strip, which is complicated and the sealing strip affects the heat exchange performance. This results in problems such as poor drainage and wasted heat exchange efficiency. The centrifugal fan has an uneven airflow, and the heat exchanger cannot fully adapt to the airflow, resulting in poor airflow coordination between the heat exchanger and the airflow.

[0003] Existing V-type heat exchangers are mostly symmetrical designs, which cannot perfectly match the heat exchange of the air field. In addition, the heat exchange enhancement part of the fins is singular. With different air fields, the heat exchange enhancement part cannot effectively match the improvement of the heat transfer coefficient. Summary of the Invention

[0004] This invention addresses the shortcomings and deficiencies of existing technologies by providing a multi-segment integrated fin design for enhanced heat exchange. It employs a variable open-bridge design based on wind field coordination, and adopts three-bridge, four-bridge, or double-bridge designs depending on wind speed. The bridge height and width layout are matched to adapt to the uneven heat exchange wind field of ducted air conditioners, resulting in better overall performance, improved evaporative heat exchange efficiency, and reduced wind resistance.

[0005] To achieve the above objectives, the present invention provides a multi-segment integrated fin for enhanced heat exchange. The fin body is an integrated structure, and the fin body is provided with tube holes for easy passage of heat exchange tubes. Bridges for enhanced heat exchange are distributed between the tube holes. The fin body is divided into three segments from top to bottom: an upper segment, a middle segment, and a lower segment. The outer edge line OCL of the fin is composed of multiple line segments, including the main body line segments L1, L2, L3, L4, L5, L6 and the sealing line segments L7, L9. The main body line segments and the sealing line segments are connected in a clockwise order as follows: L1-L7-L4-L5-L6-L9-L3-L2. The leeward side of the left outer edge of the fin, which generally curves to the left, is formed by the main body line segments L1, L2, L3. The windward side of the right outer edge of the fin, which generally curves to the left, is formed by the main body line segments L4, L5, L6. Where L2 has two endpoints P1 and P2, and L5 has two endpoints P3 and P4, and the line connecting endpoints P1 and P3 is L... 13 The line connecting P2 and P4 is L. 24 L2, L 13 L5, L 24 The fin region between them is the middle section region, L 13 The finned area mentioned above is the upper section region, L 24The fin area below is the lower section area. The number of bridges and the size of the bridges are different in the upper section area, middle section area and lower section area. The line connecting the midpoint of the main line segment L2 and the midpoint of L5 of the fin body is the fin reference line ROC1. The number of tube holes on the upper and lower parts of the fin located on the fin reference line ROC1 is different.

[0006] Preferably, the middle section of the fin body is arranged with two bridges, the upper section with four bridges, and the lower section with three bridges.

[0007] Preferably, the double bridge is divided into short double bridge, medium double bridge and long double bridge. Three sets of long double bridges are arranged on the fin reference line ROC1, one set of medium double bridges are arranged on each side of the long double bridge on the left side of the fin, and one set of short double bridges are arranged on each side of the long double bridge in the middle of the fin.

[0008] Preferably, the fin body is further provided with protrusions, which are located on both sides of the long double bridge on the right side of the fin.

[0009] Preferably, the four bridges include a first bridge located in the middle, of the same size and symmetrically distributed, and second bridges of the same size and symmetrically arranged on both sides of the first bridge. The height 'a' of the first bridge and the second bridge is 0.5-0.8 mm. The rear bridge side length 'd' of the second bridge is equal to 1.75-1.8 times the inner diameter of the heat exchange tube, and the width 'e' is equal to 0.2-0.25 times the inner diameter of the heat exchange tube. The rear bridge side length 'g' of the first bridge is equal to 0.6-0.7 times 'd'. The width 'h' of the first bridge is equal to the width 'e' of the second bridge. The opening angle 'c' of the first bridge is 25-30°, the opening angle 'b' of the second bridge is 20-25°, and the bridge spacing 'f' between the first bridge and the second bridge is equal to 0.25-0.35 times the inner diameter of the heat exchange tube.

[0010] Preferably, the three bridges include a third bridge located in the middle, and a fourth bridge distributed on both sides of the third bridge, which are of the same size and arranged symmetrically. The rear bridge side length j of the fourth bridge is 1.65-1.75 times the inner diameter of the heat exchange tube, the front bridge side length K is 1.2-1.3 times the diameter of the heat exchange tube, the width N is equal to 0.35-0.5 times the inner diameter of the heat exchange tube, and the angle M is 55-65°. The rear bridge side length L of the third bridge is equal to 0.8-0.9 times the dimension K, and the bridge spacing P between the third bridge and the fourth bridge is equal to 0.35-0.45 times the inner diameter of the heat exchange tube.

[0011] Preferably, the long double bridge includes two fifth bridges of the same size and arranged symmetrically. The width R of the fifth bridge is 0.35-0.4 times the inner diameter of the heat exchange tube, the side length Q of the rear bridge is 1.95-2.1 times the inner diameter of the heat exchange tube, the side length U of the front bridge is 0.8-0.9 times Q, the opening angle S is 65-70°, the opening angle V is 25-30°, and the bridge spacing T between the two fifth bridges is equal to the width R.

[0012] Preferably, the middle bridge includes two sixth bridges of the same size and arranged symmetrically. The width, opening angle, and bridge spacing of the sixth bridge are the same as those of the fifth bridge. The side length W of the rear bridge is 1.55-1.65 times the inner diameter of the heat exchange tube, and the side length X of the front bridge is 1.25-1.34 times the inner diameter of the heat exchange tube.

[0013] Preferably, the short double bridge includes two seventh bridges of the same size and arranged symmetrically. The width, opening angle, and bridge spacing of the seventh bridge are the same as those of the fifth bridge. The side length Y of the rear bridge is 1.1-1.2 times the inner diameter of the heat exchange tube, and the side length Z of the front bridge is 0.8-0.9 times the inner diameter of the heat exchange tube.

[0014] Preferably, the height of the convex bulge is 0.3-0.5 mm and the diameter of the convex bulge is 3 mm.

[0015] Preferably, the upper and lower ends of the outer right edge of the fin are chamfered structures, and the sealing lines L8 and L10 are the sealing sections of the upper and lower chamfered structures, respectively. L7-L8 constitute the upper sealing edge, and L10-L9 constitute the lower sealing edge.

[0016] Preferably, the junctions of the main line segments L4 and L5, L5 and L6, L1 and L2, and L2 and L3 are all chamfered structures, and the connecting line segments L11, L12, L13, and L14 are the sealing sections of these four chamfered structures.

[0017] This invention provides a multi-segment integrated fin design for enhanced heat transfer, which has the following advantages: Multi-segment integrated fins can improve production efficiency and adapt to uneven heat exchange in duct air conditioners, resulting in superior overall performance.

[0018] The heat exchanger features an asymmetrical design with different numbers and rows of holes in the upper and lower finned tubes, and different open-bridge designs in the enhanced heat exchange section. This design can accommodate uneven heat exchange air fields and improve the heat exchanger's heat exchange performance.

[0019] The enhanced heat exchange section employs five types of open-bridge designs. The upper section, with its high-speed airflow area, uses a four-bridge design; the lower section, with its medium-low speed airflow area, uses a three-bridge design; the middle section, with its three rows of pipe holes, uses a long double-bridge design due to the matching of heat exchange and air resistance; the upper-middle section, with its three rows of double-pipe holes, uses a medium-length double-bridge design; and the lower-middle section, with its three rows of double-pipe holes, uses a short-length double-bridge design. This perfectly matches the airflow heat exchange, resulting in superior overall performance. The triangular area in the middle on the windward side inside the fins uses a convex design to increase strength, while also enhancing heat exchange and ensuring drainage performance in the middle section. Attached Figure Description

[0020] Figure 1This is a schematic diagram of the structure of the multi-segment integrated fin of the present invention; Figure 2 This is a schematic diagram showing the corresponding dimensions of the multi-segment integrated finned four-bridge design of the present invention; Figure 3 This is a schematic diagram of the first and second bridges of the multi-segment integrated finned four-bridge structure of the present invention. Figure 4 This is a schematic diagram showing the corresponding dimensions of the multi-segment integrated finned three-bridge design of the present invention; Figure 5 This is a schematic diagram showing the corresponding dimensions of the multi-segment integrated finned long two-bridge structure of the present invention; Figure 6 This is a schematic diagram showing the corresponding dimensions of the two bridges in the multi-segment integrated fin of the present invention; Figure 7 This is a schematic diagram showing the corresponding dimensions of the multi-segment integrated finned short two-bridge structure of the present invention.

[0021] In the diagram: outer edge line OCL of the fin; along reference line ROC1; main body segments L1, L2, L3, L4, L5, L6; edge sealing segments L7, L8, L9, L10; connecting segments L11, L12, L13, L14; two endpoints P3, P4 of L2; two endpoints P1, P2 of L5; first bridge 1; second bridge 2; third bridge 3; fourth bridge 4; fifth bridge 5; sixth bridge 6; seventh bridge 7. Detailed Implementation

[0022] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0023] Please see Figures 1-7 The present invention provides a technical solution: like Figure 1 As shown, the multi-segment integrated fin for enhanced heat exchange provided by the present invention has an integrated structure. The fin body is provided with tube holes to facilitate the passage of heat exchange tubes. Bridges for enhanced heat exchange are provided between the tube holes. The fin body is divided into three segments from top to bottom: an upper segment, a middle segment, and a lower segment. The outer edge line OCL of the fin is composed of multiple line segments, including the main body line segments L1, L2, L3, L4, L5, L6 and the sealing line segments L7, L9. The main body line segments and the sealing line segments are connected in a clockwise order as follows: L1-L7-L4-L5-L6-L9-L3-L2. The leeward side of the left outer edge of the fin, which generally curves to the left, is formed by the main body line segments L1, L2, L3. The windward side of the right outer edge of the fin, which generally curves to the left, is formed by the main body line segments L4, L5, L6. Where L2 has two endpoints P1 and P2, and L5 has two endpoints P3 and P4, and the line connecting endpoints P1 and P3 is L... 13 The line connecting P2 and P4 is L. 24 L2, L 13 L5, L 24 The fin region between them is the middle section region, L 13 The finned area mentioned above is the upper section region, L 24 The fin area below is the lower section area. The number of bridges and the size of the bridges are different in the upper section area, middle section area and lower section area. The line connecting the midpoint of the main line segment L2 and the midpoint of L5 of the fin body is the fin reference line ROC1. The number of tube holes on the upper and lower parts of the fins located on the fin reference line ROC1 is different, and the heat exchanger is an asymmetrical design. This fin structure design can correspond to the uneven heat exchange air field, better adapt to the differences in air field, significantly improve the heat exchange performance of the heat exchanger, and realize the synergistic performance of the field.

[0024] like Figure 1 As shown, the middle section of the fin body is equipped with double bridges, which can be arranged in two or three rows. The upper section is equipped with four bridges, which can be arranged in two rows. The lower section is equipped with three bridges, which can also be arranged in two rows. The number of bridge rows matches the design of the tube holes. The design of the tube holes has been disclosed in CN119436940A and will not be described in detail here. The double bridges are divided into short double bridges, medium double bridges, and long double bridges. Three sets of long double bridges are arranged on the fin reference line ROC1. One set of medium double bridges is arranged on each side of the long double bridge on the left side of the fin. One set of short double bridges is arranged on each side of the long double bridge in the middle of the fin. The high-speed area in the upper section adopts a four-bridge design, while the medium-low speed area in the lower section adopts a three-bridge design. The high-speed area with three rows of pipe holes in the middle adopts a long double-bridge design due to the matching of heat exchange and wind resistance. The area connecting the three rows of double pipe holes in the upper middle section adopts a medium-length double-bridge design, while the area connecting the three rows of double pipe holes in the lower middle section adopts a short-length double-bridge design, which corresponds to the wind flow velocity and perfectly matches the wind field heat exchange.

[0025] like Figure 1As shown, the fin body also has protrusions 10 distributed on it. The protrusions 10 are located in the middle section region and are distributed on both sides of the long double bridge on the right side of the fin, adjacent to the two endpoints P1 and P2 of the main line segment L5. The protrusions 10 can increase the strength of the fin, while enhancing heat exchange and ensuring the drainage performance of the middle section region. As a preferred embodiment of this example, each group of protrusions 10 has three protrusions 10, the height of the protrusions 10 is 0.3-0.5 mm, and the diameter of the protrusions 10 is 3 mm.

[0026] Reference Figure 2-3 In a preferred embodiment of this invention, the four-bridge configuration includes a first bridge 1 located in the middle, of the same size and symmetrically distributed, and second bridges 2 distributed on both sides of the first bridge 1, of the same size and symmetrically arranged. The height 'a' of the first bridge 1 and the second bridge 2 is 0.5-0.8 mm. The rear bridge side length 'd' of the second bridge 2 is equal to 1.75-1.8 times the inner diameter of the heat exchange tube, and the width 'e' is equal to 0.2-0.25 times the inner diameter of the heat exchange tube. The rear bridge side length 'g' of the first bridge 1 is equal to 0.6-0.7 times 'd', the width 'h' of the first bridge 1 is equal to the width 'e' of the second bridge 2, the opening angle 'c' of the first bridge 1 is 25-30°, the opening angle 'b' of the second bridge 2 is 20-25°, and the bridge spacing 'f' between the first bridge 1 and the second bridge 2 is equal to 0.25-0.35 times the inner diameter of the heat exchange tube. In this embodiment, the upper section has 12 tube holes. Along the imaginary tangent direction of the fin body, there is a group of four bridges between every two tube holes, for a total of 10 groups of four bridges.

[0027] Reference Figure 4 In a preferred embodiment of this invention, the three-bridge configuration includes a third bridge 3 located in the middle, and fourth bridges 4 of the same size and symmetrically arranged on both sides of the third bridge 3. The rear bridge side length j of the fourth bridge 4 is 1.65-1.75 times the inner diameter of the heat exchange tube, the front bridge side length K is 1.2-1.3 times the diameter of the heat exchange tube, the width N is equal to 0.35-0.5 times the inner diameter of the heat exchange tube, and the angle M is 55-65°. The rear bridge side length L of the third bridge 3 is equal to 0.8-0.9 times the dimension K, and the bridge spacing P between the third bridge 3 and the fourth bridge 4 is equal to 0.35-0.45 times the inner diameter of the heat exchange tube. In this embodiment, the lower section has 14 tube holes. Along the imaginary tangent direction of the fin body, there is a group of three bridges between every two tube holes, for a total of 12 groups of three bridges.

[0028] Reference Figure 5 In a preferred embodiment of this invention, the long double bridge includes two fifth bridges 5 of the same size and arranged symmetrically. The width R of the fifth bridge 5 is 0.35-0.4 times the inner diameter of the heat exchange tube, the side length Q of the rear bridge is 1.95-2.1 times the inner diameter of the heat exchange tube, the side length U of the front bridge is 0.8-0.9 times the size Q, the opening angle S is 65-70°, the opening angle V is 25-30°, and the bridge spacing T between the two fifth bridges 5 is equal to the width R.

[0029] Reference Figure 6In a preferred embodiment of this invention, the middle bridge includes two sixth bridges 6 of the same size and arranged symmetrically. The width, opening angle, and bridge spacing of the sixth bridge 6 are the same as those of the fifth bridge 5. The side length W of the rear bridge is 1.55-1.65 times the inner diameter of the heat exchange tube, and the side length X of the front bridge is 1.25-1.34 times the inner diameter of the heat exchange tube.

[0030] Reference Figure 7 As a preferred embodiment of this example, the short double bridge includes two seventh bridges 7 of the same size and symmetrically arranged. The width, opening angle, and bridge spacing of the seventh bridge 7 are the same as those of the fifth bridge 5. The side length Y of the rear bridge is 1.1-1.2 times the inner diameter of the heat exchange tube, and the side length Z of the front bridge is 0.8-0.9 times the inner diameter of the heat exchange tube.

[0031] In a preferred embodiment of this invention, the upper and lower ends of the outer right edge of the fin are chamfered structures, and the sealing lines L8 and L10 are the sealing sections of the upper and lower chamfered structures, respectively. L7-L8 constitute the upper sealing, and L10-L9 constitute the lower sealing. The connection points of the main line segments L4 and L5, L5 and L6, L1 and L2, and L2 and L3 are all chamfered structures, and the connecting line segments L11, L12, L13, and L14 are the sealing sections of these four chamfered structures, respectively.

[0032] The multi-segment integrated fin structure for enhanced heat exchange in this invention is ingenious, has low manufacturing cost, and can significantly improve production efficiency. It is also adaptable to uneven heat exchange in duct air conditioners, resulting in superior overall performance.

[0033] The enhanced heat exchange section employs five types of open-bridge designs. The upper section, with its high-speed airflow area, uses a four-bridge design; the lower section, with its medium-low speed airflow area, uses a three-bridge design; the middle section, with its three rows of pipe holes, uses a long double-bridge design due to the matching of heat exchange and air resistance; the upper-middle section, with its three rows of double-pipe holes, uses a medium-length double-bridge design; and the lower-middle section, with its three rows of double-pipe holes, uses a short-length double-bridge design. This perfectly matches the airflow heat exchange, resulting in superior overall performance. The triangular area in the middle on the windward side inside the fins uses a convex design to increase strength, while also enhancing heat exchange and ensuring drainage performance in the middle section.

[0034] The heat exchanger features an asymmetrical design with different numbers and rows of holes in the upper and lower finned tubes, and different open-bridge designs in the enhanced heat exchange section. This design can accommodate uneven heat exchange air fields and improve the heat exchanger's heat exchange performance.

[0035] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A multi-segment integrated fin for enhanced heat transfer, characterized in that, The fin body is an integrated structure. The fin body is provided with tube holes to facilitate the passage of heat exchange tubes. Bridges for enhancing heat exchange are distributed between the tube holes. The fin body is divided into three sections from top to bottom: upper section, middle section, and lower section. The outer edge line OCL of the fin is composed of multiple line segments, including the main body line segments L1, L2, L3, L4, L5, L6 and the sealing line segments L7, L9. The main body line segments and the sealing line segments are connected in a clockwise order as follows: L1-L7-L4-L5-L6-L9-L3-L2. The leeward side of the left outer edge of the fin, which generally curves to the left, is formed by the main body line segments L1, L2, L3. The windward side of the right outer edge of the fin, which generally curves to the left, is formed by the main body line segments L4, L5, L6. Where L2 has two endpoints P1 and P2, and L5 has two endpoints P3 and P4, and the line connecting endpoints P1 and P3 is L... 13 The line connecting P2 and P4 is L. 24 L2, L 13 L5, L 24 The fin region between them is the middle section region, L 13 The finned area mentioned above is the upper section region, L 24 The fin area below is the lower section area. The number of bridges and the size of the bridges are different in the upper section area, middle section area and lower section area. The line connecting the midpoint of the main line segment L2 and the midpoint of L5 of the fin body is the fin reference line ROC1. The number of tube holes on the upper and lower parts of the fin located on the fin reference line ROC1 is different.

2. The multi-segment integrated fin for enhanced heat transfer according to claim 1, characterized in that, The fin body has two bridges arranged in the middle section, four bridges arranged in the upper section, and three bridges arranged in the lower section.

3. The multi-segment integrated fin for enhanced heat transfer according to claim 2, characterized in that, The dual bridge is divided into short dual bridge, medium dual bridge and long dual bridge. Three sets of long dual bridges are arranged on the fin reference line ROC1. One set of medium dual bridges is arranged on each side of the long dual bridge on the left side of the fin. One set of short dual bridges is arranged on each side of the long dual bridge in the middle of the fin.

4. The multi-segment integrated fin for enhanced heat transfer according to claim 3, characterized in that, The fin body is also provided with protrusions, which are located on both sides of the long double bridge on the right side of the fin.

5. The multi-segment integrated fin for enhanced heat transfer according to claim 2, characterized in that, The four bridges include a first bridge located in the middle, of the same size and symmetrically distributed, and second bridges of the same size and symmetrically arranged on both sides of the first bridge. The height 'a' of the first and second bridges is 0.5-0.8 mm. The rear bridge side length 'd' of the second bridge is equal to 1.75-1.8 times the inner diameter of the heat exchange tube, and the width 'e' is equal to 0.2-0.25 times the inner diameter of the heat exchange tube. The rear bridge side length 'g' of the first bridge is equal to 0.6-0.7 times 'd'. The width 'h' of the first bridge is equal to the width 'e' of the second bridge. The opening angle 'c' of the first bridge is 25-30°, and the opening angle 'b' of the second bridge is 20-25°. The bridge spacing 'f' between the first and second bridges is equal to 0.25-0.35 times the inner diameter of the heat exchange tube.

6. The multi-segment integrated fin for enhanced heat transfer according to claim 2, characterized in that, The three bridges include a third bridge in the middle and a fourth bridge of the same size and symmetrically arranged on both sides of the third bridge. The rear bridge side length j of the fourth bridge is 1.65-1.75 times the inner diameter of the heat exchange tube, the front bridge side length K is 1.2-1.3 times the diameter of the heat exchange tube, the width N is equal to 0.35-0.5 times the inner diameter of the heat exchange tube, and the angle M is 55-65°. The rear bridge side length L of the third bridge is equal to 0.8-0.9 times the size K, and the bridge spacing P between the third and fourth bridges is equal to 0.35-0.45 times the inner diameter of the heat exchange tube.

7. The multi-segment integrated fin for enhanced heat transfer according to claim 3, characterized in that, The long bridge includes two fifth bridges of the same size and arranged symmetrically. The width R of the fifth bridge is 0.35-0.4 times the inner diameter of the heat exchange tube, the side length Q of the rear bridge is 1.95-2.1 times the inner diameter of the heat exchange tube, the side length U of the front bridge is 0.8-0.9 times Q, the opening angle S is 65-70°, the opening angle V is 25-30°, and the bridge spacing T between the two fifth bridges is equal to the width R.

8. The multi-segment integrated fin for enhanced heat transfer according to claim 7, characterized in that, The middle bridge includes two sixth bridges of the same size and arranged symmetrically. The width, opening angle, and bridge spacing of the sixth bridge are the same as those of the fifth bridge. The side length W of the rear bridge is 1.55-1.65 times the inner diameter of the heat exchange tube, and the side length X of the front bridge is 1.25-1.34 times the inner diameter of the heat exchange tube.

9. A multi-segment integrated fin for enhanced heat transfer according to claim 7, characterized in that, The short double bridge includes two seventh bridges of the same size and arranged symmetrically. The width, opening angle, and bridge spacing of the seventh bridge are the same as those of the fifth bridge. The side length Y of the rear bridge is 1.1-1.2 times the inner diameter of the heat exchange tube, and the side length Z of the front bridge is 0.8-0.9 times the inner diameter of the heat exchange tube.

10. A multi-segment integrated fin for enhanced heat transfer according to claim 4, characterized in that, The height of the convex hull is 0.3-0.5mm, and the diameter of the convex hull is 3mm.

11. The multi-segment integrated fin for enhanced heat transfer according to claim 1, characterized in that, The upper and lower ends of the outer right edge of the fin are chamfered structures. The sealing lines L8 and L10 are the sealing sections of the upper and lower chamfered structures, respectively. L7-L8 constitute the upper sealing edge, and L10-L9 constitute the lower sealing edge.

12. The multi-segment integrated fin for enhanced heat transfer according to claim 1, characterized in that, The main line segments L4 and L5, L5 and L6, L1 and L2, and L2 and L3 are all chamfered structures, and the connecting lines L11, L12, L13, and L14 are the sealing sections of these four chamfered structures.

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