Plug-in type fin with positioning structure

Abstract

The utility model belongs to the technical field of radiators, particularly relates to a plug-in type fin provided with a positioning structure, and solves the problems that when plug-in type fins are arranged on a flat tube, the layers of the plug-in type fins in the width direction are uneven, the fins cannot be ensured to be parallel to one another, and the heat exchange efficiency is influenced. The plug-in type fin with the positioning structure comprises a strip-shaped main body, a plurality of plug-in grooves extending in the width direction are formed in the side portion of the strip-shaped main body in the length direction, and the positioning structure is arranged on the strip-shaped main body. And the positioning structure is used for positioning in the width direction when the plurality of groups of strip-shaped main bodies are arranged and enabling the strip-shaped main bodies to be in a mutually parallel state. The fins are positioned and connected into a fin group through the positioning structure, so that the fins are flush in the width direction, the strip-shaped main bodies are parallel to one another, and the heat exchange efficiency is high.

Description

Technical Field

[0001] The utility model belongs to the technical field of radiators, and particularly relates to a plug-in fin with a positioning structure. Background Art

[0002] A heat sink is a device used to dissipate heat generated by a device or system. Its main purpose is to transfer heat from the heat source to the surrounding environment to maintain the normal operating temperature of the device and prevent overheating.

[0003] A heat sink is usually composed of a series of fins, heat pipes or other heat dissipation structures. These structures can increase the heat dissipation surface area and provide more heat conduction paths, thereby improving heat dissipation efficiency.

[0004] In order to achieve the purpose of convenient connection, plug-in fins have appeared in the prior art, which are assembled by directly plugging them into the flat tube. However, the plug-in depths between the fins may be different, resulting in uneven layers in the width direction, affecting the appearance; moreover, the fins may have different inclination angles, that is, the fins may not be parallel to each other, which also leads to different spacing between the fins, and even the situation that the fins may be inverted and one end may be attached to each other, affecting the air circulation between the fins and affecting the heat exchange efficiency. Utility Model Content

[0005] The purpose of the utility model is to solve the above problems in the prior art and to propose a plug-in fin with a positioning structure.

[0006] In order to achieve the purpose of the innovative utility model, the following technical solutions can be used:

[0007] A plug-in fin with a positioning structure comprises a strip-shaped body, a side portion of the strip-shaped body having a plurality of plug-in grooves arranged along the length direction and extending along the width direction, the strip-shaped body being provided with a positioning structure, the positioning structure being used for positioning in the width direction and keeping each strip-shaped body parallel when multiple groups of strip-shaped bodies are arranged.

[0008] The strip-shaped body of the plug-in fin of the utility model is plugged into the flat tube through the plug-in groove, which is convenient for assembly and disassembly. When in use, a plurality of plug-in fins are arranged on the flat tube to form a fin group for dissipating heat from the flat tube. Since the strip-shaped body and the flat tube are plug-in connected, the insertion depths of the strip-shaped bodies in the plug-in direction may be different, resulting in uneven layers, and there may be a certain degree of tilting, that is, the strip-shaped bodies cannot be guaranteed to be parallel to each other. The positioning structure is used to exert a positioning effect on the strip-shaped bodies, so that the fin group is neat and beautiful, and the strip-shaped bodies are always parallel, which is conducive to the circulation of air between the fins. Moreover, the positioning structure connects the fin group together, enhances its integrity, and improves the stability of the plug-in. In actual use, the fin group can be installed or removed as a whole, which is highly practical.

[0009] In the above-mentioned plug-in fin with a positioning structure, the positioning structure includes a positioning through hole penetrating the strip body, and a positioning rod is inserted in the positioning through hole; the strip body is inserted on the heat exchange flat tube through the plug-in groove, and the positioning rod is adapted to the shape of the heat exchange flat tube.

[0010] A positioning through hole is provided on the strip body along the thickness direction, and the positioning rod is inserted into the positioning through hole to string the strip bodies together, thereby improving the integrity and achieving the effect of positioning the strip bodies. The plug-in method also has the advantage of convenient disassembly and assembly; the shapes of the positioning rod and the heat exchange flat tube are adapted to each other, so that the plug-in fin arrangement shape of the fin group is adapted to the heat exchange flat tube, thereby ensuring the smooth docking of the fin group and the heat exchange flat tube.

[0011] In the above-mentioned plug-in fin with a positioning structure, the strip-shaped body includes strip segments and plug-in segments which are perpendicular to each other, the plug-in grooves are provided between the plug-in segments, and the positioning through holes include a first positioning hole provided on the strip segments and / or a second positioning hole provided on the plug-in segments.

[0012] Plug-in grooves are arranged on the strip body along the width direction, and the strip body between the plug-in grooves is the plug-in section, which is plugged between adjacent flat tubes for heat exchange with the flat tubes. The positioning through holes can be arranged on the strip section or on the plug-in section, and the arrangement methods are various. When both the plug-in section and the strip section are arranged, it is more conducive to the positioning requirement of parallelism between the strip bodies.

[0013] In the above-mentioned plug-in fin with a positioning structure, opposite sides of at least one group of adjacent plug-in sections are integrally connected via a connecting plate surface, and the second positioning hole is provided on the connecting plate surface.

[0014] The second positioning hole on the plug-in section is arranged on the connecting plate surface, which is actually the position where the plug-in slot should be opened, which is equivalent to not opening the plug-in slot between this group of plug-in sections. No additional processing steps are required, which is easy to implement and has considerable processing costs.

[0015] Alternatively, the second positioning hole is located between the shutter structures on the plug-in section, that is, the second positioning hole is arranged at the position where the shutter structure is originally arranged.

[0016] In the above-mentioned plug-in fin with a positioning structure, a flange structure is provided on the periphery of one or both ends of the positioning through hole to facilitate the insertion of the positioning rod.

[0017] A flange structure is provided on the positioning through hole, and the flange structure can be specifically set to a shape in which the outer end is expanded outward, which can guide the insertion of the positioning rod and is also conducive to maintaining the vertical state between the positioning through hole and the positioning rod.

[0018] As an optimization, the flange structure includes a columnar section connected to the periphery of the positioning through hole and an outward expansion section connected to the outer end of the columnar section, and the inner wall of the columnar section is in contact with the side wall of the positioning rod.

[0019] The inner diameter of the cylindrical section remains unchanged and is adapted to the size of the positioning rod. The inner wall of the cylindrical section and the outer wall of the positioning rod are in contact with each other, which increases the contact area, improves the heat conduction between the positioning rod and the cylindrical section, and improves the overall heat exchange efficiency. The outer diameter of the expanded section at the outer end of the cylindrical section is larger, which is conducive to the passage of the positioning rod.

[0020] In the above-mentioned plug-in fin with a positioning structure, a docking sleeve is inserted into the positioning through hole, a docking hole is penetrated through the docking sleeve, both ends of the docking hole are provided with easy-entry chamfers, and the positioning rod is just inserted into the docking hole; the docking sleeve includes a threaded section and an abutment section with an outer diameter larger than the threaded section, the threaded section is screwed into the positioning through hole, and the inner end of the abutment section is in close contact with the strip body.

[0021] As another optimization, the docking sleeve is annular and connected to the positioning through hole. The positioning rod is inserted into the docking sleeve, and the positioning rod and the inner hole of the docking sleeve are adapted to each other. The positioning rod and the inner wall of the docking sleeve are in contact with each other, thereby improving heat transfer between them and improving heat exchange efficiency. Moreover, the docking sleeve is a single simple small part, which is easy to process and has better structural strength. The threaded section of the docking sleeve engages with the positioning through hole provided with an internal thread, and the abutting section abuts against the strip-shaped main body to prevent the docking sleeve from tipping and rotating in the radial direction. After tightening, it can also prevent the docking sleeve from rotating in the opposite direction and causing loosening, thereby improving the connection strength with the strip-shaped main body, and the screw connection method is convenient for assembly and disassembly.

[0022] In the above-mentioned plug-in fins with a positioning structure, a partition structure for limiting the minimum spacing between adjacent strip bodies is also provided on the strip body, and the partition structure includes a U-shaped spacer arranged on the strip body, and the U-shaped spacer is unfolded to form a trapezoidal body with a shorter upper bottom edge integrally connected to the strip body, and the trapezoidal body is bent backward 90 degrees twice to form the U-shaped spacer; the U-shaped spacer includes a first spacer arranged on the strip segment of the strip body, and / or a second spacer arranged on the plug-in segment of the strip body; the bending direction of the first spacer is perpendicular to the length direction of the strip segment, and the bending direction of the second spacer forms an acute angle with the length direction of the plug-in segment.

[0023] The partition structure is achieved by a U-shaped spacer to achieve a spacing effect. The U-shaped spacer is unfolded into an isosceles trapezoid shape. As an optimization, the trapezoidal main body is cut on the strip main body, that is, it is essentially a part of the strip main body. After three-side cutting and bending, a U-shaped spacer is formed. The processing is convenient and the structural strength is good. At the same time, the processing material cost is effectively controlled. The U-shaped spacer can be divided into a vertical section perpendicular to the strip main body, and a horizontal section connected to the vertical section and parallel to the strip main body. The horizontal section is specifically used to contact with adjacent strip main bodies to achieve the purpose of spacing. The front end of the horizontal section is the long bottom side of the isosceles trapezoid and has a larger contact area. During specific processing or use, the spacing distance can be adjusted by adjusting the length of the vertical section. It is highly practical. A U-shaped spacer is provided on the strip segment, which is the first spacer. Its bending direction is perpendicular to the length direction of the strip segment, which is beneficial to the circulation of air and improves the heat exchange effect. A U-shaped spacer can also be provided on the plug-in segment, which is the second spacer. The second spacer is generally located between two flat tubes. Its bending direction forms an angle with the length direction of the plug-in segment, which is beneficial to the circulation of air between the flat tubes.

[0024] In the above-mentioned plug-in fin with a positioning structure, L-shaped flanges are fixedly connected on both sides of the plug-in section of the strip-shaped main body, and the L-shaped flanges and the flat tubes are in contact with each other; the first resistance-increasing pattern and the second resistance-increasing pattern are respectively arranged on the contacting surfaces of the L-shaped flanges and the flat tubes along the length direction of the plug-in section, and the cross-sections of the first resistance-increasing pattern and the second resistance-increasing pattern are broken line-shaped, and the first resistance-increasing pattern and the second resistance-increasing pattern are meshed and connected.

[0025] L-shaped flanges are arranged on both sides of the plug-in groove, and the width direction of the L-shaped flange is consistent with the length direction of the flat tube. A first resistance-increasing pattern and a second resistance-increasing pattern are arranged between the L-shaped flange and the flat tube. Viewed from the insertion direction of the flat tube, the first resistance-increasing pattern and the second resistance-increasing pattern are mutually meshing broken line shapes, which can prevent the strip body from sliding on the flat tube along the length direction of the flat tube without affecting the insertion of the flat tube; on the other hand, the contact area between the flat tube and the L-shaped flange is increased, thereby improving the heat exchange efficiency therebetween.

[0026] In the above-mentioned plug-in fin with a positioning structure, a first guide portion is provided on the strip segment of the strip-shaped main body, and the first guide portion extends along the length direction of the strip segment; a second guide portion is provided on the plug-in segment of the strip-shaped main body, and the second guide portion extends along the length direction of the plug-in segment and is located at the front end of the plug-in segment; the cross-sections of the first guide portion and the second guide portion form a broken line triangle.

[0027] The triangular first guide portion and the second guide portion are used to improve the air circulation efficiency and the drainage effect of condensed water.

[0028] In the above-mentioned plug-in fin with a positioning structure, a louver structure is provided on the plug-in section of the strip-shaped body; chamfer structures are provided on both sides of the front end of the plug-in section of the strip-shaped body.

[0029] The shutter structure is used for air to pass through, taking away heat when the air passes through, and improving the heat exchange efficiency; the chamfer structure is used to guide the insertion of the plug-in section between the flat tubes. The chamfer structure is common knowledge and will not be elaborated in detail.

[0030] As an optimization, the shutter structure includes a window opened on a strip-shaped body, a window panel is obliquely arranged in the window, the middle part of the window panel is fixedly connected to the inner wall in the middle part of the window, and openings are formed between the window panel and the front and back sides of the strip-shaped body respectively.

[0031] Compared with the prior art, the utility model mainly has the following advantages:

[0032] 1. The strip-shaped body of the plug-in fin of the utility model is plugged into the flat tube through the plug-in groove, which is convenient for assembly and disassembly. When in use, multiple plug-in fins are arranged on the flat tube to form a fin group for dissipating heat from the flat tube. Since the strip-shaped body and the flat tube are plug-in connected, the insertion depths of the strip-shaped bodies in the plug-in direction may be different, resulting in uneven layers, and there may be a certain degree of tilting, that is, the strip-shaped bodies cannot be guaranteed to be parallel to each other. The positioning structure is used to exert a positioning effect on the strip-shaped bodies, so that the fin group is neat and beautiful, and the strip-shaped bodies are always parallel, which is conducive to the circulation of air between the fins. Moreover, the positioning structure connects the fin group together, enhances its integrity, and improves the stability of the plug-in. In actual use, the fin group can be installed or removed as a whole, which is highly practical.

[0033] 2. A positioning through hole is provided on the strip body along the thickness direction, and the positioning rod is inserted into the positioning through hole to string the strip bodies together, thereby improving the integrity and achieving the effect of positioning the strip bodies. The plug-in method also has the advantage of convenient disassembly and assembly; the shape of the positioning rod and the heat exchange flat tube is adapted to each other, so that the plug-in fin arrangement shape of the fin group is adapted to the heat exchange flat tube, ensuring the smooth docking of the fin group and the heat exchange flat tube.

[0034] 3. The second positioning hole on the plug-in section is arranged on the connecting plate surface, which is actually the position where the plug-in slot should be opened, which is equivalent to not opening the plug-in slot between this group of plug-in sections. No additional processing steps are required, which is easy to implement and has considerable processing costs.

[0035] 4. The inner diameter of the cylindrical section remains unchanged and is adapted to the size of the positioning rod. The inner wall of the cylindrical section and the outer wall of the positioning rod are in contact with each other, which increases the contact area, improves the heat conduction between the positioning rod and the cylindrical section, and improves the overall heat exchange efficiency. The outer diameter of the expanded section at the outer end of the cylindrical section is larger, which is conducive to the passage of the positioning rod.

[0036] 5. The docking sleeve is annular and connected to the positioning through hole. The positioning rod is inserted into the docking sleeve, and the positioning rod is adapted to the inner hole of the docking sleeve. The positioning rod and the inner wall of the docking sleeve are in contact with each other, thereby improving heat transfer between them and improving heat exchange efficiency. Moreover, the docking sleeve is a single simple small part, which is easy to process and has better structural strength. The threaded section of the docking sleeve is engaged in the positioning through hole with an internal thread, and the abutting section abuts against the strip-shaped body to prevent the docking sleeve from tipping and rotating in the radial direction, thereby improving the connection strength with the strip-shaped body, and the screw connection method is convenient for assembly and disassembly.

[0037] 6. The partition structure is realized by the U-shaped partition part, which is unfolded into the shape of an isosceles trapezoid. As an optimization, the trapezoidal main body is cut on the strip main body, that is, it is essentially a part of the strip main body, and the U-shaped partition part is formed after three-side cutting and bending. It is easy to process and has good structural strength. At the same time, the processing material cost is effectively controlled; the U-shaped partition part can be divided into a vertical section perpendicular to the strip main body, and a horizontal section connected to the vertical section and parallel to the strip main body. The horizontal section is specifically used to contact with the adjacent strip main body to achieve the purpose of spacing. The front end of the horizontal section is the long bottom side of the isosceles trapezoid, and the contact area is larger; in specific processing or use, the effect of adjusting the spacing distance can be achieved by adjusting the length of the vertical section, which is highly practical. The bending direction of the first partition part is perpendicular to the length direction of the strip section, which is conducive to the circulation of air; the bending direction of the second partition part is at an angle to the length direction of the plug-in section, which is conducive to the circulation of air between the flat tubes and improves the heat exchange effect.

[0038] 7. L-shaped flanges are provided on both sides of the plug-in groove, and a first resistance-increasing pattern and a second resistance-increasing pattern are provided between the L-shaped flange and the flat tube. On the one hand, the strip body can be prevented from sliding on the flat tube along the length direction of the flat tube without affecting the insertion of the flat tube; on the other hand, the contact area between the flat tube and the L-shaped flange is increased, thereby improving the heat exchange efficiency between them. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Figure 1 It is a schematic diagram of the entirety of Example 1 provided by the utility model;

[0040] Figure 2 It is a cross-sectional schematic diagram of a U-shaped spacer provided by the utility model;

[0041] Figure 3 It is a cross-sectional schematic diagram of the second guide portion provided by the utility model;

[0042] Figure 4 It is a cross-sectional schematic diagram of the first guide portion provided by the utility model;

[0043] Figure 5 It is a cross-sectional schematic diagram of the L-shaped flange provided by the utility model;

[0044] Figure 6 It is a cross-sectional schematic diagram of the cooperation between the L-shaped flange and the heat exchange flat tube provided by the utility model;

[0045] Figure 7 It is a schematic diagram of the whole fragment of Example 2 provided by the utility model;

[0046] Figure 8 It is a schematic diagram of the entirety of Example 3 provided by the utility model;

[0047] Fig. 9 It is a cross-sectional schematic diagram of the cooperation of the docking sleeve, the positioning rod and the positioning through hole of Example 4 provided by the utility model;

[0048] Fig.10 It is a schematic diagram of the entirety of Example 5 provided by the utility model;

[0049] Fig.11 yes Figure 1 Schematic diagram of the cross-section of the shutter structure at AA in the middle.

[0050] In the figure, a strip body 1, a strip section 11, a plug-in section 12, a plug-in groove 13, a connecting plate surface 14, a first air guide portion 15, a second air guide portion 16, a louver structure 17, a chamfer structure 18, a heat exchange flat tube 2, a positioning structure 3, a positioning through hole 31, a first positioning hole 32, a second positioning hole 33, a positioning rod 34, a flanging structure 35, a docking sleeve 36, a docking hole 37, a threaded section 38, abutting section 39, an easy-entry chamfer 40, a partition structure 5, a U-shaped spacer 51, a first spacer 52, a second spacer 53, an L-shaped flanging 6, a first resistance-increasing pattern 61, and a second resistance-increasing pattern 62. DETAILED DESCRIPTION

[0051] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0052] Example 1

[0053] Specific implementation examples Figure 1-6 As shown in 11, the plug-in fin with a positioning structure includes a strip-shaped body 1, and a plurality of plug-in grooves 13 extending in the width direction are arranged on the side of the strip-shaped body 1 along the length direction. A positioning structure 3 is provided on the strip-shaped body 1, and the positioning structure 3 is used for positioning in the width direction and keeping each strip-shaped body 1 parallel when multiple groups of strip-shaped bodies 1 are arranged.

[0054] Specifically, the strip body 1 of the plug-in fin of the utility model is plugged into the flat tube 2 through the plug-in groove 13, which is convenient for assembly and disassembly. When in use, multiple plug-in fins are arranged on the flat tube 2 to form a fin group for dissipating heat from the flat tube 2; since the strip body 1 and the flat tube 2 are plug-in connected, the insertion depth of each strip body 1 in the plug-in direction may be different, resulting in uneven layers, and there may be a certain degree of tilting, that is, the strip bodies 1 cannot be guaranteed to be parallel to each other. The positioning structure 3 is used to exert a positioning effect on each strip body 1, so that the fin group is neat and beautiful, and also makes each strip body 1 always parallel, which is conducive to the circulation of air between the fins. Moreover, the positioning structure 3 connects the fin group together, enhances its integrity, and improves the stability of the plug-in. In actual use, the fin group can be installed or removed as a whole, which is highly practical.

[0055] In this embodiment, the positioning structure 3 includes a positioning through hole 31 penetrating the strip body 1, and a positioning rod 34 is inserted into the positioning through hole 31; the strip body 1 is inserted into the heat exchange flat tube 2 through the insertion groove 13, and the positioning rod 34 is adapted to the shape of the heat exchange flat tube 2.

[0056] Specifically, a positioning through hole 31 is provided on the strip body 1 along the thickness direction, and a positioning rod 34 is inserted in the positioning through hole 31, so that the strip bodies 1 are strung together, the integrity is improved, and the effect of positioning each strip body 1 is achieved. The plug-in method also has the advantage of convenient disassembly and assembly; the shape of the positioning rod 34 is adapted to the shape of the heat exchange flat tube 2, so that the plug-in fin arrangement shape of the fin group is adapted to the heat exchange flat tube 2, thereby ensuring the smooth docking of the fin group and the heat exchange flat tube 2.

[0057] like Figure 1 As shown, the strip-shaped body 1 includes a strip segment 11 and a plug segment 12 which are perpendicular to each other, a plug slot 13 is provided between the plug segments 12, and a positioning through hole 31 includes a first positioning hole 32 provided on the strip segment 11 and a second positioning hole 33 provided on the plug segment 12. The opposite sides of at least one group of adjacent plug segments 12 are integrally connected through a connecting plate surface 14, and the second positioning hole 33 is provided on the connecting plate surface 14.

[0058] Specifically, the strip body 1 is provided with a plug-in groove 13 along the width direction, and the strip body 1 between the plug-in grooves 13 is the plug-in section 12. The plug-in section 12 is plugged between adjacent flat tubes 2 for heat exchange with the flat tubes 2. Positioning through holes 31 are provided on both the plug-in section 12 and the strip section 11, which is conducive to the positioning requirement of parallelism between the strip bodies 1. The second positioning hole 33 on the plug-in section 12 is provided on the connecting plate surface 14, which is actually the position where the plug-in groove 13 should be provided, which is equivalent to not providing the plug-in groove 13 between this group of plug-in sections 12, and does not need to add additional processing steps, which is easy to implement and has considerable processing costs.

[0059] like Figure 1 As shown, the periphery of both ends of the positioning hole 31 is provided with a flange structure 35 for facilitating the insertion of the positioning rod 34. The flange structure 35 includes a cylindrical section connected to the periphery of the positioning hole 31 and an outward expansion section connected to the outer end of the cylindrical section, and the inner wall of the cylindrical section is in contact with the side wall of the positioning rod 34.

[0060] Specifically, a flange structure 35 is provided on the positioning through hole 31, and the flange structure 35 can be specifically set to a shape with an outward expansion at the outer end, which can guide the insertion of the positioning rod 34. The inner diameter of the columnar section remains unchanged and is adapted to the size of the positioning rod 34. The inner wall of the columnar section and the outer wall of the positioning rod 34 are in contact with each other, increasing the contact area, improving the heat conduction between the positioning rod 34 and the columnar section, and improving the overall heat exchange efficiency; the outer diameter of the outward expansion section at the outer end of the columnar section is larger, which is conducive to the penetration of the positioning rod 34.

[0061] As an optimization of this embodiment, a partition structure 5 for limiting the minimum spacing between adjacent strip bodies 1 is further provided on the strip body 1, and the partition structure 5 includes a U-shaped spacer 51 arranged on the strip body 1. When the U-shaped spacer 51 is unfolded, it becomes a trapezoidal body with a shorter upper bottom edge integrally connected to the strip body 1, and the trapezoidal body is bent backward 90 degrees twice to form the U-shaped spacer 51; the U-shaped spacer 51 includes a first spacer 52 arranged on the strip segment 11 of the strip body 1, and a second spacer 53 arranged on the plug-in segment 12 of the strip body 1; the bending direction of the first spacer 52 is perpendicular to the length direction of the strip segment 11, and the bending direction of the second spacer 53 forms an acute angle with the length direction of the plug-in segment 12.

[0062] Specifically, the partition structure 5 achieves the spacing effect by a U-shaped spacer 51, and the U-shaped spacer 51 is unfolded into an isosceles trapezoidal shape. As an optimization, the trapezoidal main body is cut on the strip main body 1, that is, it is essentially a part of the strip main body 1, and is formed into a U-shaped spacer 51 after three-side cutting and bending. It is easy to process and has good structural strength, while effectively controlling the cost of processing materials; the U-shaped spacer 51 can be divided into a vertical segment perpendicular to the strip main body 1, and a horizontal segment connected to the vertical segment and parallel to the strip main body 1. The horizontal segment is specifically used to contact with adjacent strip main bodies 1 to achieve the purpose of spacing. The front end of the horizontal segment is the long bottom side of the isosceles trapezoid, and the contact area is larger; during specific processing or use, the spacing distance can be adjusted by adjusting the length of the vertical segment, which is highly practical. A U-shaped spacer 51 is provided on the strip segment 11, which is the first spacer 52. Its bending direction is perpendicular to the length direction of the strip segment 11, which is beneficial to the circulation of air and improves the heat exchange effect. A U-shaped spacer 51 can also be provided on the plug-in segment, which is the second spacer 53. The second spacer 53 is generally located between two flat tubes 2. Its bending direction forms an angle with the length direction of the plug-in segment 12, which is beneficial to the air circulation between the flat tubes 2.

[0063] As an optimization of this embodiment, L-shaped flanges 6 are fixedly connected on both sides of the plug-in section 12 of the strip-shaped main body 1, and the L-shaped flange 6 and the flat tube 2 are in contact with each other; the first resistance-increasing pattern 61 and the second resistance-increasing pattern 62 are respectively arranged on the contacting surfaces of the L-shaped flange 6 and the flat tube 2 along the length direction of the plug-in section 12, and the cross-sections of the first resistance-increasing pattern 61 and the second resistance-increasing pattern 62 are broken line-shaped, and the first resistance-increasing pattern 61 and the second resistance-increasing pattern 62 are meshed and connected.

[0064] Specifically, L-shaped flanges 6 are provided on both sides of the insertion groove 13, and the width direction of the L-shaped flange 6 is consistent with the length direction of the flat tube 2. A first resistance-increasing pattern 61 and a second resistance-increasing pattern 62 are provided between the L-shaped flange 6 and the flat tube 2. From the insertion direction of the flat tube 2, the first resistance-increasing pattern 61 and the second resistance-increasing pattern 62 are mutually meshing broken line shapes, which can prevent the strip body 1 from sliding on the flat tube 2 along the length direction of the flat tube 2 without affecting the insertion of the flat tube 2; on the other hand, the contact area between the flat tube 2 and the L-shaped flange 6 is increased, thereby improving the heat exchange efficiency therebetween.

[0065] In this embodiment, a first guide portion 15 is provided on the strip segment 11 of the strip body 1, and the first guide portion 15 extends along the length direction of the strip segment 11; a second guide portion 16 is provided on the plug-in segment 12 of the strip body 1, and the second guide portion 16 extends along the length direction of the plug-in segment 12 and is located at the front end of the plug-in segment 12; the cross-sections of the first guide portion 15 and the second guide portion 16 are in the shape of a broken line triangle.

[0066] Specifically, the triangular first air guide portion 15 and the second air guide portion 16 are used to improve the air circulation efficiency and the drainage effect of condensed water.

[0067] As an optimization of this embodiment, a shutter structure 17 is provided on the plug-in section 12 of the strip-shaped main body 1 ; chamfer structures 18 are provided on both sides of the front end of the plug-in section 12 of the strip-shaped main body 1 .

[0068] Specifically, the louver structure 17 is used for air to pass through, taking away heat when the air passes through, thereby improving the heat exchange efficiency; the chamfer structure 18 is used for guiding the insertion of the plug-in section 12 between the flat tubes 2.

[0069] like Fig.11 As shown, the shutter structure 17 includes a window opened on the strip-shaped body 1, a window plate is obliquely arranged in the window, the middle part of the window plate is connected to the inner wall of the middle part of the window, and openings are formed between the window plate and the front and back sides of the strip-shaped body respectively.

[0070] Specific working principle: As one of the assembly methods, during assembly, the plug-in groove 13 of the plug-in fin is aligned with the flat tube 2 and inserted on the flat tube 2, and arranged along the length direction of the flat tube 2, and then the positioning rod 34 is inserted into the positioning through hole 31 of each flat tube 2, and the plug-in fins are formed into a fin group to complete the assembly.

[0071] As another assembly method, during assembly, the positioning through hole 31 of the plug-in fin is aligned with the positioning rod 34 and first inserted into the positioning rod 34 to form a fin group. Then, the plug-in groove 13 of the fin group is aligned with the flat tube 2 and connected to the flat tube 2. This method is particularly suitable for the installation of non-linear flat tubes 2.

[0072] Example 2

[0073] The specific working principle of this embodiment is substantially the same as that of Embodiment 1, except for the location of the positioning through hole 31 .

[0074] Specific implementation examples Figure 7 As shown, the positioning through hole 31 only includes a first positioning hole 32 provided on the strip segment 11 .

[0075] Example 3

[0076] The specific working principle of this embodiment is substantially the same as that of Embodiment 1, except for the location of the positioning through hole 31 .

[0077] Specific implementation examples Figure 8 As shown, the positioning through hole 31 only includes a second positioning hole 33 provided on the plug-in section 12 .

[0078] Example 4

[0079] The specific working principle of this embodiment is substantially the same as that of the first embodiment, except that the difference lies in the docking structure between the positioning through hole 31 and the positioning rod 34 .

[0080] Specific implementation examples Fig. 9 As shown, a docking sleeve 36 is inserted into the positioning through hole 31, a docking hole 37 is penetrated through the docking sleeve 36, both ends of the docking hole 37 are provided with easy-entry chamfers 40, and the positioning rod 34 is just inserted into the docking hole 37; the docking sleeve 36 includes a threaded section 38 and an abutment section 39 with an outer diameter larger than the threaded section 38, the threaded section 38 is screwed into the positioning through hole 31, and the inner end of the abutment section 39 is in close contact with the strip body 1.

[0081] Specifically, the docking sleeve 36 is annular and connected to the positioning through hole 31. The positioning rod 34 is inserted into the docking sleeve 36, and the positioning rod 34 and the inner hole of the docking sleeve 36 are adapted to each other. The positioning rod 34 and the inner wall of the docking sleeve 36 are in contact with each other, thereby improving the heat transfer between them and improving the heat exchange efficiency. Moreover, the docking sleeve 36 is a single simple small part, similar to a bolt with an axial through hole, which is easy to process and has better structural strength. The threaded section 38 of the docking sleeve 36 is engaged in the positioning through hole 31 with an internal thread, and the abutting section 39 abuts against the strip-shaped main body 1 to prevent the docking sleeve 36 from tipping over and rotating in the radial direction. After tightening, it can also prevent the docking sleeve 36 from rotating in the opposite direction and causing loosening, thereby improving the connection strength with the strip-shaped main body 1, and the screw connection method is convenient for disassembly and assembly.

[0082] Example 5

[0083] The specific working principle of this embodiment is substantially the same as that of Embodiment 1, except for the location of the second positioning hole 33 .

[0084] Specific implementation examples Fig.10 As shown, the second positioning hole 33 is located between the shutter structures 17 on the plug-in section 12 , that is, the second positioning hole 33 is arranged at the position where the shutter structure 17 is originally arranged.

[0085] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

Claims

1. A plug-in fin with a positioning structure, comprising a strip-shaped body (1), characterized in that: The side of the strip-shaped body (1) is provided with a plurality of insertion grooves (13) extending in the width direction and arranged in the length direction. The strip-shaped body (1) is provided with a positioning structure (3). The positioning structure (3) is used to position the strip-shaped bodies (1) in the width direction when multiple groups of the strip-shaped bodies (1) are arranged and arranged, and to make each strip-shaped body (1) be in and maintain a mutually parallel state.

2. The plug-in fin with a positioning structure according to claim 1, characterized in that: The positioning structure (3) comprises a positioning through hole (31) penetrating the strip-shaped body (1), and a positioning rod (34) is inserted into the positioning through hole (31); The strip-shaped main body (1) is inserted into the heat exchange flat tube (2) through the insertion groove (13), and the positioning rod (34) is adapted to the shape of the heat exchange flat tube (2).

3. The plug-in fin with a positioning structure according to claim 2, characterized in that: The strip-shaped body (1) comprises a strip segment (11) and an inserting segment (12) which are perpendicular to each other, the inserting groove (13) is provided between the inserting segments (12), and the positioning through hole (31) comprises a first positioning hole (32) provided on the strip segment (11) and / or a second positioning hole (33) provided on the inserting segment (12).

4. The plug-in fin with a positioning structure according to claim 3, characterized in that: The opposite sides of at least one group of adjacent plug-in sections (12) are integrally connected via a connecting plate surface (14), and the second positioning hole (33) is arranged on the connecting plate surface (14); Alternatively, the second positioning hole (33) is located between the shutter structures (17) on the plug-in section (12).

5. The plug-in fin with a positioning structure according to claim 2, characterized in that: A flange structure (35) is provided on the periphery of one or both ends of the positioning through hole (31) to facilitate the insertion of the positioning rod (34).

6. The plug-in fin with a positioning structure according to claim 2, characterized in that: A docking sleeve (36) is inserted into the positioning through hole (31), a docking hole (37) is penetrated through the docking sleeve (36), both ends of the docking hole (37) are provided with easy-entry chamfers (40), and the positioning rod (34) is just inserted into the docking hole (37).

7. The plug-in fin with a positioning structure according to any one of claims 1 to 6, characterized in that: The strip-shaped body (1) is also provided with a partition structure (5) for defining the minimum spacing between adjacent strip-shaped bodies (1), the partition structure (5) comprising a U-shaped partition (51) provided on the strip-shaped body (1), the U-shaped partition (51) being a trapezoidal body having a shorter upper bottom edge integrally connected to the strip-shaped body (1) when unfolded, the trapezoidal body being bent backwards by 90 degrees twice to form the U-shaped partition (51); The U-shaped spacer (51) comprises a first spacer (52) arranged on the strip segment (11) of the strip body (1), and / or a second spacer (53) arranged on the plug-in segment (12) of the strip body (1); The bending direction of the first spacer (52) is perpendicular to the length direction of the strip segment (11), and the bending direction of the second spacer (53) forms an acute angle with the length direction of the plug-in segment (12).

8. The plug-in fin with a positioning structure according to any one of claims 1 to 6, characterized in that: L-shaped flanges (6) are fixedly connected to both sides of the plug-in section (12) of the strip-shaped main body (1), and the L-shaped flanges (6) and the flat tube (2) are in contact with each other; the surfaces of the L-shaped flanges (6) and the flat tube (2) in contact with each other are respectively provided with a first resistance-increasing pattern (61) and a second resistance-increasing pattern (62) along the length direction of the plug-in section (12), and the cross-sections of the first resistance-increasing pattern (61) and the second resistance-increasing pattern (62) are in the shape of a broken line, and the first resistance-increasing pattern (61) and the second resistance-increasing pattern (62) are meshed and connected.

9. The plug-in fin with a positioning structure according to any one of claims 1 to 6, characterized in that: A first flow guide portion (15) is provided on the strip segment (11) of the strip body (1), and the first flow guide portion (15) extends along the length direction of the strip segment (11); A second guide portion (16) is provided on the plug-in section (12) of the strip-shaped main body (1), and the second guide portion (16) extends along the length direction of the plug-in section (12) and is located at the front end of the plug-in section (12); The cross sections of the first flow guide portion (15) and the second flow guide portion (16) are in the shape of a broken line triangle.

10. The plug-in fin with a positioning structure according to any one of claims 1 to 6, characterized in that: A shutter structure (17) is provided on the plug-in section (12) of the strip-shaped main body (1); Chamfer structures (18) are provided on both sides of the front end of the plug-in section (12) of the strip-shaped main body (1).

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