Opening plug-in type fin and radiator provided with opening plug-in type fin

Abstract

The utility model belongs to the technical field of radiators, and particularly relates to an opening plug-in type fin and a radiator provided with the opening 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 opening plug-in type fin comprises a strip-shaped plate-shaped fin body, the side portion of the fin body is provided with a tooth-shaped plug-in groove used for being connected with a flat pipe in a plug-in 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 of the flat pipes and the fin body is achieved through the inserting grooves, disassembly and assembly are convenient, and good flexibility is achieved; meanwhile, the fin main body only needs to be processed into a strip-shaped flat plate shape and does not need to be bent into a broken line shape or a wavy line, so that 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 an open plug-in fin and a radiator provided with the open 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 an open plug-in fin.

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

[0007] An open plug-in fin comprises a strip-shaped fin body, the side of the fin body is provided with a toothed plug-in groove for plugging in a flat tube, and the fin body is also provided with a partition structure for limiting the minimum spacing when stacked.

[0008] The fin body of the utility model is in the form of a strip plate, which is easy to process. The side thereof is provided with a toothed plug-in groove. Viewed from the thickness direction of the fin body, the plug-in groove is arranged through, which meets the requirement of detachable plug-in 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 open plug-in fins according to the actual usage scenario. In specific applications, the open plug-in fins are arranged in multiple groups in parallel with each other, and the partition structure is used to limit the spacing between adjacent open 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.

[0009] In the above-mentioned open 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.

[0010] The first bending portion is connected to the side surface of the end portion of the fin body, and is bent toward the upper, lower and center of the fin body to form a shape similar to a P shape. The open plug-in fins on the adjacent sides are pressed against the first bending portion to define the minimum spacing. Moreover, the highest point of the first bending portion is located directly above the fin body. The open plug-in fins are stably pressed against the first bending portion to ensure a good separation effect.

[0011] 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.

[0012] In the above-mentioned open plug-in fin, the separation structure includes a second bent portion fixedly connected to the side surface of the width side of the fin body, and the second bent portion is bent back to above the plate surface of the fin body and is located on the opposite side of the plug-in slot.

[0013] 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.

[0014] In the above-mentioned open plug-in fin, the projections of the first bending portions at both ends in the length direction of the fin body do not overlap each other; the second bending portion is arranged away from the center line of the fin body; and the bending directions of the first bending portion and the second bending portion are consistent.

[0015] From the length direction of the fin body, the two first bends of an open plug-in fin do not overlap, which ensures that on the basis of the plug-in slots facing the same direction, after the two open plug-in fins with the first bends bent downward and upward respectively overlap, the two first bends will not interfere with each other. The second bend is not in the middle of the fin body, which is also to avoid the interference of the two opposite second bends after the open plug-in fin is turned over, to ensure the normal separation distance between the two open plug-in fins, especially to facilitate the turning over of the outermost open plug-in fin, to avoid the first bend and the second bend from bending outward, which is more beautiful and also reduces 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, which is convenient for turning over the outermost open plug-in fin to the state where the first bend and the second bend are facing inward at the same time.

[0016] In the above-mentioned open plug-in fin, the arch height of the first bent portion is adapted to the arch height of the second bent portion.

[0017] 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.

[0018] In the above-mentioned open plug-in fin, an easy-entry chamfer is provided on the outer opening of the plug-in slot; and a shutter structure is provided on the fin body between the plug-in slots.

[0019] The easy-entry chamfer facilitates plug-in connection with the flat tube and has a guiding effect; the louver structure promotes air circulation between the open plug-in fins and improves the heat dissipation effect.

[0020] 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.

[0021] In the above-mentioned open plug-in fin, a resistance-enhancing layer is fixed on the slot wall of the plug-in slot.

[0022] The resistance increasing layer is used to increase the friction resistance between the plug-in slot 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.

[0023] In the above-mentioned open 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;

[0024] The U-shaped spacer comprises a first spacer disposed on the strip section of the fin body, and a second spacer disposed at the front end of the splicing tooth;

[0025] The bending direction of the first spacing portion is perpendicular to the length direction of the strip segment, and the bending direction of the second spacing portion forms an acute angle with the length direction of the splicing tooth.

[0026] As another scheme, the partition structure is specifically composed of 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 main body is cut on the fin main body, that is, it is essentially a part of the fin 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 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 adjacent fin bodies 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. It is very practical. The fin body is divided into a strip segment and a splicing tooth. The splicing tooth is vertically connected to the strip segment. The splicing groove is formed between the splicing teeth. The first spacing portion is arranged on the strip segment. The 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. Specifically, the first spacing portion is located on the inner side of the splicing tooth and is adapted to the number of the splicing teeth; the second spacing portion is arranged at the front end of the splicing tooth, and its bending direction is at an angle to the length direction of the splicing tooth, which ensures good deformation resistance and has little impact on air circulation.

[0027] In the above-mentioned open 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 first bending portion, and a second arch portion respectively arranged on both sides of the second spacing portion. 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 tooth.

[0028] The triangular arched portion is used to improve the air circulation efficiency and the drainage effect of condensed water.

[0029] In the above-mentioned open plug-in fin, the edge of the plug-in slot is provided with a right-angled bend for increasing the contact area with the flat tube, and the right-angled bend is integrally connected to the plug-in tooth side of the fin body and is perpendicular to the fin body.

[0030] The right-angle bend portion is arranged on the side edge of the splicing tooth 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 the bending of the edge of the splicing tooth, which is an integrated structure with high structural strength, convenient processing and low processing cost.

[0031] Another purpose of the utility model is to propose a radiator in view of the above problems existing in the prior art.

[0032] In order to achieve the purpose of the innovative utility model, the following technical solutions can be used:

[0033] 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 open plug-in fins, the flat tube is clamped in the plug-in slot, and the partition structure separates the open plug-in fins.

[0034] The radiator of the utility model is provided with open plug-in fins, and the flat tubes are connected to the collecting tube. This is the prior art. The open plug-in fins are inserted into the flat tubes through plug-in grooves, which is convenient to assemble. The size of the plug-in grooves is adapted to the size of the flat tubes, and the spacing between the plug-in grooves is adapted to the spacing between the flat tubes. The open plug-in fins are arranged parallel to each other along the length direction of the flat tubes, and the separation structure separates each open plug-in fin by a certain distance to avoid affecting the heat dissipation effect due to the close contact of the open plug-in fins.

[0035] In the above-mentioned radiator, the open 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 located on one side close to the inner fins.

[0036] Multiple groups of open plug-in fins are arranged parallel to each other. The open 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 open plug-in fin. The partition structure of the end fins is arranged on the inner side to avoid exposure.

[0037] In the above-mentioned radiator, the flat tubes are parallel to each other, the open plug-in fins are parallel to each other, the flat tubes and the open plug-in fins are vertically arranged, and the number of flat tubes is adapted to the number of plug-in slots, and the width of the plug-in slots is adapted to the thickness 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.

[0038] The sizes of the flat tube and the plug-in slot are adapted to each other, and a good limiting effect can be achieved through the friction between them. The open plug-in fins 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.

[0039] 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 open plug-in fin, and are easy to disassemble and assemble.

[0040] 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.

[0041] Compared with the prior art, the utility model has the following advantages:

[0042] 1. The fin body is in the form of a strip plate, which is easy to process. A toothed plug-in groove is provided on its side. From the thickness direction of the fin body, the plug-in groove is set through, which meets the requirements of detachable plug-in 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 open plug-in fins according to the actual use scenario. The partition structure is used to limit the spacing between adjacent open plug-in fins to avoid the problem of poor heat dissipation due to being too close to each other or even fitting each other.

[0043] 2. Viewed from the length direction of the fin body, the two first bent portions of an open plug-in fin do not overlap, ensuring that on the basis of the plug-in grooves facing the same direction, after the two open plug-in fins with the first bent portions bent downward and upward respectively overlap, the two first bent portions will not interfere with each other. The second bent portion is not in the middle of the fin body, also to avoid interference between the two opposite second bent portions after the open plug-in fin is turned over, to ensure the normal separation distance between the two open plug-in fins, especially to facilitate the turning over setting of the outermost open plug-in fin, to avoid the first bent portion and the second bent portion from bending outward, which is more beautiful and also reduces the possible hooking and pulling of the first bent portion and the second bent portion on other structures.

[0044] 3. The resistance-increasing layer is used to increase the friction resistance between the plug slot and the flat tube and improve the stability of the connection.

[0045] 4. The radiator of the utility model is provided with open plug-in fins, which are inserted into the flat tubes through plug-in grooves, and are easy to assemble. The partition structure separates each open plug-in fin by a certain distance to avoid affecting the heat exchange effect due to the close contact of the open plug-in fins.

[0046] 5. Multiple groups of open plug-in fins are arranged parallel to each other. The open 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, which ensures that the partition structure separates each open 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 to avoid exposure.

[0047] 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 effect of adjusting the spacing distance can be achieved by adjusting the length of the vertical section, which is highly practical. The first 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. The second spacer is set at the front end of the splice tooth, and its bending direction is at an angle to the length direction of the splice tooth, which ensures good anti-deformation ability and has little impact on air circulation. BRIEF DESCRIPTION OF THE DRAWINGS

[0048] Figure 1 1 is a top view schematic diagram of the open plug-in fin of Example 1 provided by the utility model (only part is shown);

[0049] Figure 2 It is a side view schematic diagram of the open plug-in fin of Example 1 provided by the utility model;

[0050] Figure 3 yes Figure 1 Schematic diagram of the cross section at AA in the middle;

[0051] Figure 4 yes Figure 1 Schematic diagram of the cross section at the middle BB;

[0052] Figure 5 yes Figure 1 Schematic diagram of the cross section at CC;

[0053] Figure 6 yes Figure 1 Schematic diagram of the cross section at DD in the middle;

[0054] Figure 7 It is a structural schematic diagram of the open plug-in fin of Example 2 provided by the utility model;

[0055] Figure 8 It is a top view schematic diagram of the open plug-in fin of Example 2 provided by the utility model;

[0056] Fig. 9 1 is a schematic structural diagram of a radiator according to Embodiment 2 of the present utility model (the flat tubes and open plug-in fins are only partially shown);

[0057] Fig.10is a side view schematic diagram of the radiator of Example 2 provided by the utility model (only a part of the open plug-in fins is shown);

[0058] Fig.11 : is a schematic diagram of the structure of the radiator of Example 3 provided by the utility model (the flat tubes and open plug-in fins are only partially shown);

[0059] Fig.12 is a side view schematic diagram of the radiator of Example 3 provided by the utility model (only a part of the open plug-in fins is shown);

[0060] Fig.13 It is a schematic cross-sectional view of the flat tube provided by the utility model.

[0061] In the figure, the fin body 1, the louver structure 11, the plug-in groove 12, the easy-entry chamfer 13, 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 plug-in teeth 19, the partition structure 2, the first bent portion 21, the second bent portion 22, the U-shaped spacer 23, the first spacer 24, the second spacer 25, the flat tube 3, the collecting pipe 4, the open plug-in fin 5, the end fin 51, and the inner fin 52. DETAILED DESCRIPTION

[0062] 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.

[0063] Example 1

[0064] Specific implementation examples Figure 1-6 As shown, the open plug-in fin 5 comprises a strip-shaped fin body 1, the side of which is provided with a toothed plug-in groove 12 for plugging in the flat tube 3, and the fin body 1 is also provided with a partition structure 2 for limiting the minimum spacing when stacked.

[0065] Specifically, the fin body 1 of the utility model is in the form of a strip plate, which is easy to process, and a serrated plug-in groove 12 is provided on the side thereof. From the thickness direction of the fin body 1, the plug-in groove 12 is arranged through, which meets the requirements of detachable plug-in 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 open plug-in fins 5 according to the actual use scenario. In specific applications, the open plug-in fins 5 are arranged in multiple groups in parallel with each other, and the partition structure 2 is used to limit the spacing between adjacent open 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.

[0066] like Figure 1-3As 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 by 90 degrees twice to form the U-shaped spacer 23; the U-shaped spacer 23 includes a first spacer 24 arranged on the strip segment 18 of the fin body, and a second spacer 25 arranged at the front end of the splicing tooth 19; the bending direction of the first spacer 24 is perpendicular to the length direction of the strip segment 18, and the bending direction of the second spacer 25 forms an acute angle with the length direction of the splicing tooth 19.

[0067] Specifically, the partition structure 2 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 1, 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 adjacent fin main bodies 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 fin body is divided into a strip segment 18 and a splicing tooth 19. The splicing tooth 19 is vertically connected to the strip segment 18. A splicing groove 12 is formed between the splicing teeth 19. The first spacer 24 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 first spacer 24 is located on the inner side of the splicing tooth 19 and is adapted to the number of the splicing teeth 19; the second spacer 25 is arranged at the front end of the splicing tooth 19, and its bending direction is at an angle to the length direction of the splicing tooth 19, which ensures good deformation resistance and has little impact on air circulation.

[0068] 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 first spacer 24, and second arched portions 16 provided on both sides of the second spacer 25, 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 splicing tooth 19. The triangular arched portion 14 is used to improve the air circulation efficiency and improve the drainage effect of condensed water.

[0069] 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 groove 12 . The right-angled bend 17 is integrally connected to the side of the insertion tooth 19 of the fin body 1 and is perpendicular to the fin body 1 .

[0070] Specifically, the right-angle bend 17 is arranged on the side edge of the splice tooth 19 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. It is specifically formed by the bending of the edge of the splice tooth 19, which is an integrated structure with high structural strength, convenient processing and low processing cost.

[0071] As an optimization, an easy-entry chamfer 13 is provided on the outer opening of the insertion slot 12 ; and a shutter structure 11 is provided on the fin body 1 between the insertion slots 12 .

[0072] The easy-entry chamfer 13 facilitates plug-in connection with the flat tube 3 and has a guiding effect; the louver structure 11 promotes air circulation between the open plug-in fins 5 and increases the heat dissipation effect.

[0073] In this embodiment, a resistance increasing layer is fixed on the groove wall of the plug groove 12, that is, on the inner side of the right-angle bending portion 17. The resistance increasing layer is specifically in the form of rough texture. The resistance increasing layer is used to increase the friction resistance between the plug groove 12 and the flat tube 3 and improve the stability of the connection.

[0074] As an optimization of this embodiment, the radiator includes 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 open plug-in fins 5, the flat tube 3 is clamped in the plug-in groove 12, and the partition structure 2 separates the open plug-in fins 5.

[0075] Specifically, the flat tube 3 is connected to the collecting tube 4, and the open plug-in fin 5 is inserted into the flat tube 3 through the plug-in groove 12, which is convenient for assembly. The size of the plug-in groove 12 is adapted to the size of the flat tube 3, and the spacing between the plug-in grooves 12 is adapted to the spacing between the flat tubes 3. The open plug-in fins 5 are arranged parallel to each other along the length direction of the flat tube 3, and the partition structure 2 separates each open plug-in fin 5 by a certain distance to avoid affecting the heat exchange effect due to the close contact of the open plug-in fins 5.

[0076] In this embodiment, the open 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 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 side close to the inner fins 52. The flat tubes 3 are parallel to each other, the open plug-in fins 5 are parallel to each other, the flat tubes 3 and the open plug-in fins 5 are arranged vertically, and the number of the flat tubes 3 is adapted to the number of the plug-in slots 12, and the width of the plug-in slots 12 is adapted to the thickness of the flat tubes 3; the flat tubes 3 are linear.

[0077] Specifically, multiple groups of open plug-in fins 5 are arranged in parallel with each other, the open 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 structures 2 separate the open plug-in fins 5. The partition structures 2 of the end fins 51 are arranged on the inside, especially the end fins 51 on the side of the partition structure 2 near the inner fins 52 are reversely set to avoid exposure. The sizes of the flat tube 3 and the plug-in slot 12 are adapted to each other, and a good limiting effect can be achieved through the friction between them.

[0078] Specific working principle: During assembly, first connect the flat tube 3 and the collecting tube 4, then align the plug-in groove 12 of the open plug-in fin 5 with the flat tube 3, plug it into the flat tube 3 in a manner perpendicular to the flat tube 3, and stack them upward from one end of the flat tube 3, with the plug-in grooves 12 all facing one side, and the U-shaped spacers 23 of adjacent plug-in fins 5 in contact with each other to complete the installation.

[0079] Example 2

[0080] 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 .

[0081] Specific implementation examples 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 and is located on the opposite side of the plug-in slot 12. For a better separation effect, a second bent portion 22 is provided 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.

[0082] Specifically, the first bending portion 21 is connected to the side of the end of the fin body 1, and is bent toward the top, bottom and center of the fin body 1 to form a shape similar to a p-shape, and the open plug-in fins 5 on the adjacent sides are 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, and the open plug-in fins 5 are stably against the first bending portion 21 to ensure a good separation effect. The shutter structure 11 in the figure does not show specific details.

[0083] 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, the first bending portion 21 can be easily cut off when it is not needed.

[0084] 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.

[0085] Specifically, viewed from the length direction of the fin body 1, the two first bent portions 21 of an open plug-in fin 5 do not overlap, ensuring that on the basis of the plug-in slots 12 facing the same direction, after the two open plug-in fins 5 with the first bent portions 21 bent downward and upward respectively overlap, the two first bent portions 21 will not interfere with each other. The second bent portion 22 is not in the middle position of the fin body 1, so as to avoid interference between the two opposite second bent portions 22 after the open plug-in fin 5 is turned over, thereby ensuring a normal separation distance between the two open plug-in fins 5, and in particular facilitating the turning over of the outermost open plug-in fin 5, thereby avoiding the first bent portion 21 and the second bent portion 22 from bending outward, which is more beautiful and reduces the effects of the first bent portion 21 and the second bent 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 open plug-in fin 5 to a state where the first bending portion 21 and the second bending portion 22 are both facing inward.

[0086] 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.

[0087] Specific working principle: During assembly, first connect the flat tube 3 and the collecting tube 4, then align the plug-in slot 12 of the open plug-in fin 5 with the flat tube 3, plug it into the flat tube 3 in a manner perpendicular to the flat tube 3, and stack them upward from one end of the flat tube 3. The plug-in slots 12 are all facing one side, and 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, to complete the installation.

[0088] Example 3

[0089] The specific working principle of this embodiment is basically the same as that of Embodiment 2, except that the flat tubes 3 of the radiator are different.

[0090] Specific implementation examples Fig.11 , 12 As shown in Figures 13, the flat tube 3 is non-linear, including two straight sections and an arc-shaped section in the middle, and the second bending section 22 is located on the inner side of the arc-shaped section.

[0091] 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. An open plug-in fin, characterized in that: It comprises a strip-shaped plate-shaped fin body (1), the side of which is provided with a tooth-shaped plug-in groove (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 open plug-in fin 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 open plug-in fin 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) and is located on the opposite side of the insertion slot (12); 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 away from the center line of the fin body (1).

4. The open 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 bottom edge integrally connected to the fin body (1) after being unfolded, and the trapezoidal body is bent backwards by 90 degrees twice to form the U-shaped partition (23); The U-shaped spacer (23) comprises a first spacer (24) arranged on the strip section (18) of the fin body, and a second spacer (25) arranged at the front end of the splicing tooth (19); The bending direction of the first spacing portion (24) is perpendicular to the length direction of the strip segment (18), and the bending direction of the second spacing portion (25) forms an acute angle with the length direction of the splicing tooth (19).

5. The open 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 first spacer (24), and second arched portions (16) respectively arranged on the left and right sides of the second spacer (25), 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 consistent with the length direction of the splicing tooth (19).

6. The open plug-in fin according to claim 1, characterized in that: The edge of the plug-in slot (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 side of the plug-in tooth (19) of the fin body and is perpendicular to the fin body (1).

7. The open plug-in fin according to claim 1, characterized in that: The outer opening of the plug-in slot (12) is provided with an easy-entry chamfer (13); A shutter structure (11) is provided on the fin body (1) between the insertion slots (12); A resistance-enhancing layer is fixed on the groove wall of the plug-in groove (12).

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

9. The heat sink according to claim 8, characterized in that: The open 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 a side close to the inner fins (52).

10. The heat sink according to claim 8, characterized in that The flat tubes (3) are parallel to each other, the open plug-in fins (5) are parallel to each other, the flat tubes (3) and the open plug-in fins (5) are vertically arranged, the number of the flat tubes (3) is adapted to the number of the plug-in slots (12), and the width of the plug-in slots (12) is adapted to the thickness 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.

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