Through hole plug-in type fin and radiator provided with through hole plug-in type fin

Abstract

The utility model belongs to the technical field of radiators, and particularly relates to a through hole plug-in type fin and a radiator provided with the through hole plug-in type fin. The problems that disassembly and assembly are inconvenient, use is not flexible, and the machining cost is high are solved. The through hole plug-in type fin comprises a strip-shaped plate-shaped fin body, plug-in holes used for being connected with flat pipes in a plug-in mode are formed in the fin body in a penetrating mode, and the fin body is further provided with a separation structure used for limiting the minimum distance when the fin body is arranged in a stacked mode. Detachable connection is achieved by inserting the flat pipes into the inserting holes of the fin body, disassembly and assembly are convenient, and good flexibility is achieved; meanwhile, only processing into a strip-shaped plate is needed, bending processing into a broken line shape or a wavy line is not needed, and the processing cost is reduced; and the arrangement of the separation structure also prevents the adjacent fins from being attached too close to influence the heat dissipation effect.

Description

Technical Field

[0001] The utility model belongs to the technical field of radiators and particularly relates to a through-hole plug-in fin 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 the prior art, fins are often provided between flat tubes to increase the heat dissipation area and improve the heat dissipation efficiency. However, the current fins are mostly wavy or broken line shaped and are provided between two flat tubes. The fins of this shape need to be bent and formed, which has high processing costs. Moreover, most of them are one-piece and need to be disassembled and assembled as a whole, which lacks flexibility. The fixation between the flat tubes also requires an additional fixing structure, which has high assembly costs. Utility Model Content

[0005] The utility model aims to solve the above problems in the prior art and proposes a through-hole plug-in fin.

[0006] In order to realize the purpose of innovation of the utility model, the following technical scheme can be adopted: a through-hole plug-in fin, comprising a strip-shaped fin body, the fin body is penetrated by a plug-in hole for plugging in a flat tube, and the fin body is also provided with a partition structure for limiting the minimum spacing when stacked.

[0007] The fin body of the utility model is in the form of a strip plate, which is easy to process. A through-hole type plug-in hole is opened on the plate surface of the fin body along the thickness direction, which is used to form a detachable connection with the flat tube. The plug-in method is convenient for disassembly and assembly, and it is also convenient to replace or increase or decrease the number of fins according to actual usage scenarios. In specific applications, multiple groups of through-hole plug-in fins are arranged in parallel with each other, and the partition structure is used to limit the spacing between adjacent through-hole plug-in fins to avoid the problem of poor heat dissipation effect due to being too close to each other or even fitting each other.

[0008] In the above-mentioned through-hole plug-in fin, the separation structure includes a first bending portion fixedly connected to the side surfaces at both ends of the fin body, and the first bending portion is bent back to above the plate surface of the fin body.

[0009] The first bending portion is connected to the side surface of the end portion of the fin body, and is bent toward the top, bottom and center of the fin body to form a shape similar to a P shape. The through-hole plug-in fins on the adjacent sides abut against the first bending portion to define a minimum spacing. Moreover, the highest point of the first bending portion is located directly above the fin body. The through-hole plug-in fins are stably abutted against the first bending portion to ensure a good separation effect.

[0010] As an optimization, the first bending portion is integrally formed on the fin body, is consistent with the material of the fin body, and has a certain deformation ability. After preliminary processing, that is, before the first bending portion is bent, it is located on the same plane as the fin body, and the first bending portion is subsequently formed by bending backward. The processing is convenient, and the height of the arch can be changed by adjusting the specific bending degree to achieve the control of the size of the limited minimum spacing. It is highly practical. In fact, since the fin body is equivalent to iron sheet, when the first bending portion is not needed, it can also be easily removed, such as by cutting it off.

[0011] In the above-mentioned through-hole plug-in fin, the separation structure includes a second bending portion fixedly connected to the side surface of the width side of the fin body, the second bending portion is bent back to above the plate surface of the fin body, and the second bending portion is only arranged on one side of the fin body, or is arranged on both sides.

[0012] In order to achieve a better separation effect, a second bending portion is provided on the width side of the fin body to separate the middle portion of the fin body, and the specific structure is similar to that of the first bending portion.

[0013] In the above-mentioned through-hole plug-in fin, the projections of the first bent portions at both ends in the length direction of the fin body do not overlap each other;

[0014] The second bending portion is arranged away from the midline of the fin body;

[0015] The bending directions of the first bending portion and the second bending portion are consistent.

[0016] From the length direction of the fin body, the two first bends of a through-hole plug-in fin do not overlap, ensuring that the two first bends of the two through-hole plug-in fins with the first bends bent downward and upward, respectively, will not interfere with each other after overlapping. The second bend is not in the middle of the fin body, which can also avoid the interference of the two opposite second bends after the through-hole plug-in fin is turned over, ensuring the normal separation distance between the two through-hole plug-in fins, especially facilitating the turning over of the outermost through-hole plug-in fin, avoiding the first bend and the second bend from bending outward, making it more beautiful and reducing the possible hooking and pulling of the first bend and the second bend on other structures. The first bend and the second bend are both bent toward the upper side or the lower side of the fin body, making it easy to flip the outermost through-hole plug-in fin to a state where the first bend and the second bend are facing inward at the same time.

[0017] In the above-mentioned through-hole plug-in fin, the arch height of the first bent portion is adapted to the arch height of the second bent portion.

[0018] The first bent portion and the second bent portion are in the same height, ensuring that when the fin body is straight, both can be stressed at the same time, making the stress more uniform and the separation effect more stable.

[0019] In the above-mentioned through-hole plug-in fin, the edge of the plug-in hole is provided with an easy-entry chamfer;

[0020] A shutter structure is provided on the fin body between the plug holes.

[0021] The easy-entry chamfer facilitates the insertion of the flat tube and has a guiding effect; the louver structure promotes air circulation between the through-hole plug-in fins and improves the heat dissipation effect.

[0022] As an optimization, the shutter structure includes a window opened on the fin body, a window plate is obliquely arranged in the window, the middle part of the window plate is fixedly 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 fin body respectively.

[0023] In the above-mentioned through-hole plug-in fin, a resistance-enhancing layer is fixed on the slot wall of the plug-in hole.

[0024] The resistance increasing layer is used to increase the friction resistance between the plug hole and the flat tube and improve the stability of the connection. Specifically, it can be achieved by applying glue, setting rough texture, setting elastic cushion layer, etc.

[0025] In the above-mentioned through-hole plug-in fin, the partition structure includes a U-shaped partition provided on the fin body, and the U-shaped partition is a trapezoidal body whose upper and lower sides are integrally connected to the fin body after being unfolded, and the trapezoidal body is bent backwards by 90 degrees twice to form the U-shaped partition;

[0026] The U-shaped spacer is arranged on the strip section of the fin body;

[0027] The bending direction of the U-shaped spacer is perpendicular to the length direction of the strip segment.

[0028] As another scheme, the partition structure is specifically realized by a U-shaped spacer to achieve the spacing effect. The U-shaped spacer is unfolded into an isosceles trapezoid shape. As an optimization, the trapezoidal body is cut on the fin body, that is, it is essentially a part of the fin body. After three-side cutting and bending, the U-shaped spacer is formed. It is easy to process and has good structural strength. 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 fin body, and a horizontal section connected to the vertical section and parallel to the fin body. The horizontal section is specifically used to contact with the adjacent fin 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 strip section is the strip part of the fin body on both sides of the plug hole. The U-shaped spacer is arranged on the strip section. The bending direction is perpendicular to the length direction of the strip section, which is conducive to the circulation of air and improves the heat exchange effect. Specifically, the U-shaped spacer is located on the side of the plug hole and is adapted to the number of plug holes.

[0029] In the above-mentioned through-hole plug-in fin, a triangular arch portion is also provided on the fin body, and the triangular arch portion includes a first arch portion arranged on the outside of the U-shaped spacer, and a second arch portion respectively arranged on the left and right sides of the U-shaped spacer, the length direction of the first arch portion is consistent with the length direction of the strip segment, and the length direction of the second arch portion is consistent with the length direction of the plug-in hole.

[0030] The triangular arched portion is used to improve the air circulation efficiency and the drainage effect of condensed water.

[0031] In the above-mentioned through-hole plug-in fin, the edge of the plug-in hole is provided with a right-angled bend portion for increasing the contact area with the flat tube, and the right-angled bend portion is integrally connected to the fin body and is perpendicular to the fin body.

[0032] The right-angle bend portion is arranged on the edge of the plug-in hole in the form of a 90-degree bend, which is used to increase the contact area with the flat tube and improve the heat exchange efficiency. At the same time, it also increases the force-bearing area and reduces the scratches on the flat tube. Specifically, it is formed by bending the fin body at the edge of the plug-in hole. It is an integrated structure with high structural strength, easy processing and low processing cost.

[0033] Another purpose of the utility model is to propose a radiator in view of the above problems existing in the prior art.

[0034] In order to achieve the purpose of the innovative utility model, the following technical solutions can be used:

[0035] A radiator comprises a flat tube and a collecting tube, wherein both ends of the flat tube are connected to the collecting tube, the flat tube is provided with the above-mentioned through-hole plug-in fins, the flat tube is inserted in the plug-in hole, and the partition structure separates the through-hole plug-in fins.

[0036] The radiator of the utility model is provided with through-hole plug-in fins, and the flat tubes are connected to the collecting tube. This is the prior art. The through-hole plug-in fins are detachably connected to the flat tubes through the plug-in holes, and the assembly is convenient. The size of the plug-in holes is adapted to the size of the flat tubes, and the spacing between the plug-in holes is adapted to the spacing between the flat tubes. The through-hole plug-in fins are arranged parallel to each other along the length direction of the flat tubes, and the separation structure separates each through-hole plug-in fin by a certain distance to avoid affecting the heat exchange effect due to the through-hole plug-in fins being attached to each other.

[0037] In the above-mentioned radiator, the through-hole plug-in fins are evenly arranged in parallel with each other, including the outermost end fins and a plurality of inner fins located between the end fins, the partition structures of the inner fins are arranged in the same direction, and the partition structures of the end fins are arranged on the inner side.

[0038] Multiple groups of through-hole plug-in fins are arranged parallel to each other, the through-hole plug-in fins at both ends are end fins, and the remaining middle ones are inner fins. The partition structures of all inner fins are arranged on the same side of their fin bodies, that is, all inner fins are arranged in the same direction, ensuring that the partition structure separates each through-hole plug-in fin. The partition structure of the end fin is arranged on the inner side, especially the end fin on the side of the partition structure close to the inner fin is turned over in the reverse direction, avoiding exposure of the partition structure.

[0039] In the above-mentioned radiator, the flat tubes are parallel to each other, the through-hole plug-in fins are parallel to each other, the flat tubes and the through-hole plug-in fins are vertically arranged, and the number of flat tubes is adapted to the number of plug-in holes, the width of the plug-in holes is adapted to the thickness of the flat tubes, and the length is adapted to the width of the flat tubes; the flat tubes are linear; or the flat tubes are non-linear, including at least one arc-shaped portion, and the second bending portion of the partition structure is located on the inner side of the arc-shaped portion.

[0040] The sizes of the flat tube and the plug-in hole are adapted to each other, and a good limiting effect can be achieved through the friction between them. The through-hole plug-in fin can be adapted to flat tubes of different shapes, including straight and even curved. Straight flat tubes are in line with the most commonly used usage styles, and curved flat tubes can be adapted to special usage scenarios to improve the heat exchange effect. On the curved flat tube, the second bend is located on the inner side of the arc, ensuring a good separation effect.

[0041] As an optimization, limiting rods can be inserted between the first bending portions, which have a certain limiting effect in the width direction, can improve the integrity of each through-hole plug-in fin, and are easy to disassemble and assemble.

[0042] As an illustration, for the convenience of explanation, the description of the orientation of the fin body in the text is based on its flat state.

[0043] Compared with the prior art, the utility model mainly has the following advantages:

[0044] 1. The fin body is in the form of a strip plate, which is easy to process. A through-hole plug-in hole is opened on the plate surface of the fin body along the thickness direction, which is used for the flat tube to form a detachable connection. The plug-in method is convenient for disassembly and assembly, and it is also convenient to replace or increase or decrease the number of fins according to the actual use scenario. In specific applications, multiple groups of through-hole plug-in fins are arranged in parallel with each other, and the partition structure is used to limit the spacing between adjacent through-hole plug-in fins to avoid the problem of poor heat dissipation due to being too close to each other or even fitting each other.

[0045] 2. Viewed from the length direction of the fin body, the two first bent portions of a through-hole plug-in fin do not overlap, ensuring that the two first bent portions of the two through-hole plug-in fins, whose first bent portions are bent downward and upward respectively, will not interfere with each other after overlapping. The second bent portion is not located in the middle of the fin body, also to avoid interference between the two opposite second bent portions after the through-hole plug-in fin is turned over, thereby ensuring a normal separation distance between the two through-hole plug-in fins, and being particularly beneficial to the turning over setting of the outermost through-hole plug-in fin, thereby avoiding the first bent portion and the second bent portion from bending outward, which is more beautiful and also reduces the possible hooking and pulling effects of the first bent portion and the second bent portion on other structures.

[0046] 3. The resistance-increasing layer is used to increase the friction resistance between the plug hole and the flat tube and improve the stability of the connection.

[0047] 4. The radiator of the utility model is provided with through-hole plug-in fins, which are detachably connected to the flat tubes through the plug-in holes, and are easy to assemble. The size of the plug-in holes is adapted to the size of the flat tubes, and the spacing between the plug-in holes is adapted to the spacing between the flat tubes. The through-hole plug-in fins are arranged parallel to each other along the length direction of the flat tubes, and the separation structure separates each through-hole plug-in fin by a certain distance to avoid affecting the heat exchange effect due to the through-hole plug-in fins sticking to each other.

[0048] 5. Multiple groups of through-hole plug-in fins are arranged parallel to each other, the through-hole plug-in fins at both ends are end fins, and the rest in the middle are inner fins. The partition structures of all inner fins are arranged on the same side of their fin bodies, that is, all inner fins are arranged in the same direction, ensuring that the partition structure separates each through-hole plug-in fin, and the partition structure of the end fin is arranged on the inner side, especially the end fin on the side of the partition structure close to the inner fin is turned over in the opposite direction, avoiding exposure of the first bending portion and the second bending portion.

[0049] 6. The trapezoidal main body is cut on the fin main body, that is, it is essentially a part of the fin main body. After cutting and bending on three sides, a U-shaped spacer is formed. It is easy to process and has good structural strength. At the same time, the cost of processing materials is effectively controlled. The U-shaped spacer can be divided into a vertical section perpendicular to the fin main body, and a horizontal section connected to the vertical section and parallel to the fin main body. The horizontal section is specifically used to contact the adjacent fin 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. During specific processing or use, the spacing distance can be adjusted by adjusting the length of the vertical section, which is highly practical. The U-shaped spacer is set on the strip section, and the bending direction is perpendicular to the length direction of the strip section, which is conducive to the circulation of air and improves the heat exchange effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0050] Figure 1 1 is a top view of the through-hole plug-in fin of Example 1 provided by the utility model (only part is shown);

[0051] Figure 2 It is a side view schematic diagram of the through-hole plug-in fin of Example 1 provided by the utility model;

[0052] Figure 3 yes Figure 1 Schematic diagram of the cross section at AA in the middle;

[0053] Figure 4 yes Figure 1 Schematic diagram of the cross section at BB;

[0054] Figure 5 yes Figure 1 Schematic diagram of the cross section at CC;

[0055] Figure 6 yes Figure 1 Schematic diagram of the cross section at DD in the middle;

[0056] Figure 7 It is a structural schematic diagram of a through-hole plug-in fin of Example 2 provided by the utility model;

[0057] Figure 8 It is a top view schematic diagram of the through-hole plug-in fin of Example 2 provided by the utility model;

[0058] Fig. 9 1 is a schematic diagram of the structure of the radiator of Example 2 provided by the utility model (the flat tubes and through-hole plug-in fins are only partially shown);

[0059] Fig.10 1 is a side view schematic diagram of a heat sink according to Embodiment 2 of the present utility model (only a portion of the through-hole plug-in fins are shown);

[0060] Fig.11 : is a schematic diagram of the structure of the radiator of Example 3 provided by the utility model (the flat tubes and through-hole plug-in fins are only partially shown);

[0061] Fig.12 is a side view schematic diagram of the heat sink of Example 3 provided by the utility model (only a part of the through-hole plug-in fins is shown);

[0062] Fig.13 It is a schematic cross-sectional view of the flat tube provided by the utility model.

[0063] In the figure, the fin body 1, the louver structure 11, the plug-in hole 12, the triangular arched portion 14, the first arched portion 15, the second arched portion 16, the right-angled bent portion 17, the strip segment 18, the partition structure 2, the first bent portion 21, the second bent portion 22, the U-shaped spacer 23, the flat tube 3, the collecting pipe 4, the through-hole plug-in fin 5, the end fin 51, and the inner fin 52. DETAILED DESCRIPTION

[0064] 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.

[0065] Example 1

[0066] Specific implementation examples Figure 1-6 As shown in Figures 13, the through-hole plug-in fin 5 includes a strip-shaped fin body 1, on which a plug-in hole 12 for plugging in the flat tube 3 is provided. The fin body 1 is also provided with a partition structure 2 for limiting the minimum spacing when stacked.

[0067] Specifically, the fin body 1 of the utility model is in the form of a strip plate, which is easy to process. A through-hole type plug-in hole 12 is opened on the plate surface of the fin body 1 along the thickness direction, which is used to form a detachable connection with the flat tube 3. The plug-in method is convenient for disassembly and assembly, and it is also convenient to replace or increase or decrease the number of fins according to actual usage scenarios. In specific applications, multiple groups of through-hole plug-in fins 5 are arranged in parallel with each other, and the partition structure 2 is used to limit the spacing between adjacent through-hole plug-in fins 5 to avoid the problem of poor heat dissipation due to being too close to each other or even fitting each other.

[0068] like Figure 1-3 As shown, the partition structure 2 includes a U-shaped spacer 23 arranged on the fin body 1. When the U-shaped spacer 23 is unfolded, it becomes a trapezoidal body whose upper and lower edges are integrally connected to the fin body 1. The trapezoidal body is bent backwards 90 degrees twice to form the U-shaped spacer 23; the U-shaped spacer 23 is arranged on the strip segment 18 of the fin body 1; the bending direction of the U-shaped spacer 23 is perpendicular to the length direction of the strip segment 18.

[0069] Specifically, the partition structure is specifically implemented by a U-shaped spacer 23 to achieve a spacing effect. The U-shaped spacer 23 is unfolded into an isosceles trapezoidal shape. As an optimization, the trapezoidal main body is cut on the fin main body 1, that is, it is essentially a part of the fin main body 1. After three-side cutting and bending, a U-shaped spacer 23 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 23 can be divided into a vertical section perpendicular to the fin main body, and a horizontal section connected to the vertical section and parallel to the fin main body. The horizontal section is specifically used to contact with the adjacent fin main body 1 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. During specific processing or use, the spacing distance can be adjusted by adjusting the length of the vertical section, which is highly practical. The strip segment 18 is the strip portion of the fin body 1 on both outsides of the plug-in hole 12. The U-shaped spacer 23 is arranged on the strip segment 18. The bending direction is perpendicular to the length direction of the strip segment 18, which is beneficial to the circulation of air and improves the heat exchange effect. Specifically, the U-shaped spacer 23 is located on the side of the plug-in hole 12 and is adapted to the number of the plug-in holes 12.

[0070] As an optimization of this embodiment, a triangular arched portion 14 is further provided on the fin body 1, and the triangular arched portion 14 includes a first arched portion 15 provided outside the U-shaped spacer 23, and second arched portions 16 provided on the left and right sides of the U-shaped spacer 23, respectively. The length direction of the first arched portion 15 is consistent with the length direction of the strip segment 18, and the length direction of the second arched portion 16 is consistent with the length direction of the plug hole 12. The triangular arched portion 14 is used to improve the air circulation efficiency and improve the drainage effect of condensed water.

[0071] In this embodiment, a right-angled bend 17 for increasing the contact area with the flat tube 3 is provided at the edge of the insertion hole 12 . The right-angled bend 17 is integrally connected to the fin body 1 and is perpendicular to the fin body 1 .

[0072] Specifically, the right-angle bend 17 is arranged on the edge of the plug hole 12 in the form of a 90-degree bend, which is used to increase the contact area with the flat tube 3 and improve the heat exchange efficiency. At the same time, it also increases the force-bearing area and reduces the scratches on the flat tube 3. Specifically, it is formed by bending the fin body 1 at the edge of the plug hole 12. It is an integrated structure with high structural strength, convenient processing and low processing cost.

[0073] As an optimization, an easy-entry chamfer is provided on the edge of the plug hole 12; a shutter structure 11 is provided on the fin body 1 between the plug holes 12. A resistance-enhancing layer is fixed on the slot wall of the plug hole 12.

[0074] Specifically, the easy-entry chamfer facilitates the insertion of the flat tube 3 and has a guiding effect; the louver structure 11 promotes the air circulation between the through-hole plug-in fins 5 and improves the heat dissipation effect. The resistance-enhancing layer is used to increase the friction resistance between the plug-in hole 12 and the flat tube 3 and improve the stability of the connection. The resistance-enhancing layer of this embodiment is realized by providing a rough texture on the inner side surface of the right-angle bending portion 17.

[0075] The radiator comprises a flat tube 3 and a collecting tube 4. Both ends of the flat tube 3 are connected to the collecting tube 4. The flat tube 3 is provided with the above-mentioned through-hole plug-in fin 5. The flat tube 3 is inserted into the plug-in hole 12. The partition structure 2 separates the through-hole plug-in fin 5.

[0076] Specifically, the radiator of the utility model is provided with through-hole plug-in fins 5, and the flat tubes 3 are connected to the collecting tube 4. This is the prior art. The through-hole plug-in fins 5 are detachably connected to the flat tubes 3 through the plug-in holes 12, and the assembly is convenient. The size of the plug-in holes 12 is adapted to the size of the flat tubes 3, and the spacing between the plug-in holes 12 is adapted to the spacing between the flat tubes 3. The through-hole plug-in fins 5 are arranged parallel to each other along the length direction of the flat tubes 3, and the partition structure 2 separates each through-hole plug-in fin 5 by a certain distance to avoid affecting the heat exchange effect due to the through-hole plug-in fins 5 being attached to each other.

[0077] As an optimization of this embodiment, the through-hole plug-in fins 5 are evenly arranged in parallel with each other, including the outermost end fins 51 and a plurality of inner fins 52 located between the end fins 51, the partition structures 2 of the inner fins 52 are arranged in the same direction, and the partition structures 2 of the end fins 51 are located on the inner side. The flat tubes 3 are parallel to each other, the through-hole plug-in fins 5 are parallel to each other, the flat tubes 3 and the through-hole plug-in fins 5 are arranged vertically, and the number of flat tubes 3 is adapted to the number of plug-in holes 12, the width of the plug-in holes 12 is adapted to the thickness of the flat tubes 3, and the length is adapted to the width of the flat tubes 3; the flat tubes 3 are linear.

[0078] Specifically, multiple groups of through-hole plug-in fins 5 are arranged in parallel with each other, the through-hole plug-in fins 5 at both ends are end fins 51, and the rest in the middle are inner fins 52. The partition structures 2 of all inner fins 52 are arranged on the same side of their fin bodies 1, that is, all inner fins 52 are arranged in the same direction, ensuring that the partition structure 2 separates each through-hole plug-in fin 5, and the partition structure 2 of the end fin 51 is arranged on the inner side, especially the end fin 51 on the side of the partition structure 2 near the inner fin 52 is turned over to be reversed to avoid exposure. The sizes of the flat tube 3 and the plug-in hole 12 are adapted, and a good limiting effect can be achieved through the friction between them.

[0079] In this embodiment, the cross-sectional view and specific parameters of the flat tube 3 are as follows: Fig.13 As shown (unit of dimension marking: mm), the width of the flat tube 3 includes 25-26mm, the thickness includes 1.2-1.4mm, the two width sides of the flat tube 3 include arc-shaped side parts, the radius of the arc-shaped side parts includes 0.6-0.7mm; 15-20 rectangular microchannels are arranged in the flat tube 3, the spacing between the side wall of the microchannel and the outer side of the flat tube 3 includes 0.26-0.3mm; the width of the microchannels at both ends includes 0.6-0.8mm, and a side near the arc-shaped side part is provided with an arc-shaped part with a radius of 0.35-0.39mm, and the length of the microchannel at the inner end includes 0.9-1.1mm; the spacing between the microchannels includes 0.27-0.33mm, and the microchannels are provided with fillets with a radius of 0.17-0.23mm. The flat tube 3 with these parameters has good structural strength and high heat exchange medium circulation efficiency.

[0080] Specific working principle: During assembly, first connect one end of the flat tube 3 to the collecting pipe 4, then align the plug-in hole 12 of the through-hole plug-in fin 5 with the flat tube 33 and put it on the flat tube 3, and stack them from the lower end of the flat tube 3 upward, so that the U-shaped spacers 23 of adjacent plug-in fins 5 are in contact with each other, and finally connect the other end of the flat tube 3 to another collecting pipe 4 to complete the installation.

[0081] Example 2

[0082] The specific working principle of this embodiment is basically the same as that of Embodiment 1, except that the difference lies in the separation structure 2 .

[0083] like Figure 7-10 As shown, the separation structure 2 includes a first bent portion 21 fixedly connected to the side surfaces of both ends of the fin body 1, and the first bent portion 21 is bent back to the upper surface of the plate of the fin body 1. The separation structure 2 includes a second bent portion 22 fixedly connected to the side surface of the width side of the fin body 1, and the second bent portion 22 is bent back to the upper surface of the plate of the fin body 1. The second bent portion 22 is only arranged on one side of the fin body 1. In order to achieve a better separation effect, a second bent portion 22 is arranged on the width side of the fin body 1 to separate the middle part of the fin body 1, and the specific structure is similar to the first bent portion 21.

[0084] Specifically, the first bending portion 21 is connected to the side of the end of the fin body 1, and is bent toward the upper and lower sides and the center of the fin body 1 to form a shape similar to a p-shape. The through-hole plug-in fins 5 on the adjacent sides abut against the first bending portion 21 to define the minimum spacing, and the highest point of the first bending portion 21 is located directly above the fin body 1. The through-hole plug-in fins 5 are stably abutted by the first bending portion 21 to ensure a good separation effect. The shutter structure 11 in the figure does not show specific details.

[0085] In this embodiment, the first bending portion 21 is integrally formed on the fin body 1, is consistent with the material of the fin body 1, and has a certain deformation ability. After preliminary processing, that is, before the first bending portion 21 is bent, it is located on the same plane as the fin body 1, and the first bending portion 21 is subsequently formed by bending backward. The processing is convenient, and the height of the arch can be changed by adjusting the specific bending degree to achieve the control of the size of the limited minimum spacing. It is highly practical. In fact, since the fin body 1 is equivalent to iron sheet, when the first bending portion 21 is not needed, it can also be easily removed, such as by cutting it off.

[0086] As an optimization of this embodiment, the projections of the first bending portions 21 at both ends in the length direction of the fin body 1 do not overlap each other; the second bending portion 22 is arranged away from the center line of the fin body 1; the bending directions of the first bending portion 21 and the second bending portion 22 are consistent.

[0087] Specifically, viewed from the length direction of the fin body 1, the two first bending portions 21 of a through hole plug-in fin 5 do not overlap, ensuring that the two first bending portions 21 of the two through hole plug-in fins 5 whose first bending portions 21 are bent downward and upward respectively will not interfere with each other after overlapping. The second bending portion 22 is not in the middle position of the fin body 1, which can also avoid interference between the two opposite second bending portions 22 after the through hole plug-in fin 5 is turned over, thereby ensuring a normal separation distance between the two through hole plug-in fins 5, and is particularly beneficial to the turning over setting of the outermost through hole plug-in fin 5, thereby avoiding the first bending portion 21 and the second bending portion 22 from bending outward, which is more beautiful and also reduces the possible hooking and pulling effects of the first bending portion 21 and the second bending portion 22 on other structures. The first bending portion 21 and the second bending portion 22 are both bent toward the upper side or the lower side of the fin body 1 , so as to facilitate turning the outermost through-hole plug-in fin 5 to a state where the first bending portion 21 and the second bending portion 22 are both facing inward.

[0088] As an optimization, the arch height of the first bend 21 is adapted to the arch height of the second bend 22. The first bend 21 and the second bend 22 are of the same height, ensuring that when the fin body 1 is straight, both can be stressed at the same time, making the stress more uniform and the separation effect more stable.

[0089] Specific working principle: During assembly, first connect one end of the flat tube 3 to the collecting pipe 4, then align the plug-in hole 12 of the through-hole plug-in fin 5 with the flat tube 3 and put it on the flat tube 3, and stack them from the lower end of the flat tube 3 upward. The inner fin 52 and the lower end fin 51 are installed with the first bent portion 21 facing upward, and the uppermost end fin 51 is installed after turning over, with its first bent portion 21 facing the inner fin 52, and finally the other end of the flat tube 3 is connected to another collecting pipe 4 to complete the installation.

[0090] Example 3

[0091] The specific working principle of this embodiment is basically the same as that of Embodiment 2, except that the flat tube 3 is different.

[0092] Specific implementation examples Fig.11 , 12 As shown, the flat tube 3 is non-linear, including two straight sections and an arc-shaped section in the middle, and the second bent section 22 is located inside the arc-shaped section.

[0093] 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 through-hole plug-in fin (5), characterized in that: It comprises a strip-shaped plate-shaped fin body (1), wherein the fin body (1) is provided with a plug-in hole (12) for plugging in a flat tube (3), and the fin body (1) is also provided with a partition structure (2) for limiting the minimum spacing when stacked.

2. The through-hole plug-in fin (5) according to claim 1, characterized in that: The separation structure (2) comprises a first bent portion (21) fixedly connected to the side surfaces at both ends of the fin body (1), and the first bent portion (21) is bent back to above the plate surface of the fin body (1).

3. The through-hole plug-in fin (5) according to claim 2, characterized in that: The separation structure (2) comprises a second bent portion (22) fixedly connected to the side surface of the width side of the fin body (1), and the second bent portion (22) is bent back to above the plate surface of the fin body (1); the second bent portion (22) is only arranged on one side of the fin body (1), or is arranged on both sides; The projections of the first bent portions (21) at the two ends in the length direction of the fin body (1) do not overlap with each other; The second bent portion (22) is arranged only on one side of the fin body (1), or on both sides of the fin body (1), and the second bent portion (22) is arranged away from the center line of the fin body (1).

4. The through-hole plug-in fin according to claim 1, characterized in that: The partition structure comprises a U-shaped partition (23) arranged on the fin body, wherein the U-shaped partition (23) is a trapezoidal body having a shorter upper and lower sides integrally connected to the fin body (1) when unfolded, and the trapezoidal body is bent backwards by 90 degrees twice to form the U-shaped partition (23); The U-shaped spacer (23) is arranged on the strip section (18) of the fin body; The bending direction of the U-shaped spacer (23) is perpendicular to the length direction of the strip segment (18).

5. The through-hole plug-in fin according to claim 4, characterized in that: The fin body (1) is further provided with a triangular arched portion (14), the triangular arched portion (14) comprising a first arched portion (15) arranged outside the U-shaped spacer (23) and / or a second arched portion (16) respectively arranged on the left and right sides of the U-shaped spacer (23), the length direction of the first arched portion (15) being consistent with the length direction of the strip segment (18), and the length direction of the second arched portion (16) being perpendicular to the length direction of the strip segment (18).

6. The through-hole plug-in fin according to claim 1, characterized in that: The edge of the plug hole (12) is provided with a right-angled bend (17) for increasing the contact area with the flat tube (3); the right-angled bend (17) is integrally connected to the plug hole (12) of the fin body and is perpendicular to the fin body (1); The edge of the plug hole (12) is provided with an easy-entry chamfer; A shutter structure (11) is provided on the fin body (1) between the plug holes (12); A resistance increasing layer is fixed on the inner wall of the plug hole (12).

7. A radiator, comprising a flat tube (3) and a collecting tube (4), wherein both ends of the flat tube (3) are connected to the collecting tube (4), characterized in that: The flat tube (3) is provided with a plurality of through-hole plug-in fins (5) according to any one of claims 1 to 6, the flat tube (3) is inserted into the plug-in hole (12), and the partition structure (2) separates the through-hole plug-in fins (5).

8. The heat sink according to claim 7, characterized in that: The through-hole plug-in fins (5) are evenly arranged in parallel with each other, and include an outermost end fin (51) and a plurality of inner fins (52) located between the end fins (51); the partition structures (2) of the inner fins (52) are arranged in the same direction, and the partition structures (2) of the end fins (51) are located on the inner side.

9. The heat sink according to claim 7, characterized in that: The flat tubes (3) are parallel to each other, the through-hole plug-in fins (5) are parallel to each other, the flat tubes (3) and the through-hole plug-in fins (5) are arranged vertically, the number of the flat tubes (3) is adapted to the number of the plug-in holes (12), the width of the plug-in holes (12) is adapted to the thickness of the flat tubes (3), and the length of the plug-in holes (12) is adapted to the width of the flat tubes (3); The flat tube (3) is in a straight line shape; Alternatively, the flat tube (3) is non-linear and includes at least one arc-shaped portion.

10. The heat sink according to claim 7, characterized in that From the cross section of the flat tube: the width of the flat tube (3) is 25-26 mm, the thickness is 1.2-1.4 mm, the two width sides of the flat tube (3) include arc-shaped side portions, the radius of the arc-shaped side portions is 0.6-0.7 mm; 15-20 rectangular microchannels are arranged in the flat tube (3), the spacing between the side wall of the microchannel and the outer side surface of the flat tube (3) is 0.26-0.3 mm; the width of the microchannels at both ends is 0.6-0.8 mm, and a side near the arc-shaped side portion is provided with an arc portion with a radius of 0.35-0.39 mm, and the length of the microchannel at the inner end is 0.9-1.1 mm; the spacing between the microchannels is 0.27-0.33 mm, and the microchannels are provided with fillets with a radius of 0.17-0.23 mm.

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