Heat exchanger

Abstract

The heat exchanger comprises heat exchange tubes and fins, the heat exchange tubes are in a wave shape in the length direction of the heat exchange tubes, clamping grooves used for clamping the heat exchange tubes are formed in the fins, notches of the clamping grooves are located in the side walls of the fins, and the wave-shaped heat exchange tubes are clamped into the clamping grooves of the fins through the notches of the clamping grooves. According to the scheme, the heat exchange tube is a wave-shaped tube, and the linear length of the heat exchange tube is shortened under the condition that the length of a heat exchange path of the heat exchange tube is not changed. According to the heat exchanger, by changing the shape of the heat exchange tube, the size of the heat exchanger in the length direction of the heat exchange tube is shortened on the premise that the heat exchange capacity of the heat exchanger is not changed, and the development trend of shortening of the heat exchanger is met.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of heat exchangers, in particular to a heat exchanger. BACKGROUND

[0002] The heat exchanger is a main heat transfer component of a refrigeration system.

[0003] The heat exchanger mainly comprises heat exchange pipes 001, fins 002 and a header 003, the header 003 is used for distributing and collecting refrigerants, and the fins 002 are used for strengthening the heat exchange efficiency of the heat exchanger and the air side.

[0004] In the related art, as shown in the figure, the heat exchange pipe 001 is a straight pipe, the fin 002 is a linear fin, a through hole is formed in the fin 002, and the heat exchange pipe 001 is connected with the fin 002 through the through hole and is fixed by welding. The heat exchange capacity of this heat exchanger can only be adjusted by increasing the number and / or length of the heat exchange pipes 001, which does not conform to the development trend of miniaturization of the heat exchanger. Figure 1

[0005] Therefore, how to design a heat exchanger to overcome the above-mentioned defects has become a technical problem to be solved by the person skilled in the art. SUMMARY

[0006] The application provides a heat exchanger to improve the heat exchange capacity of the heat exchanger and conform to the development trend of miniaturization of the heat exchanger.

[0007] In order to achieve the above-mentioned purpose, the application provides a heat exchanger, which comprises: an end header having a fluid passage; a heat exchange pipe in a wavy shape along the length direction of the heat exchange pipe, the heat exchange pipe being in communication with the end header; a fin having a clamping groove, at least part of the heat exchange pipe being clamped in the clamping groove, and the slot opening of the clamping groove being located at the side edge of the fin.

[0008] The heat exchanger provided by the embodiment of the application comprises a heat exchange pipe and a fin, wherein the heat exchange pipe is in a wavy shape along the length direction of the heat exchange pipe, and the fin is provided with a clamping groove for clamping the heat exchange pipe.

[0009] In the scheme, the heat exchange pipe is a wavy pipe. Compared with the heat exchanger in the background art, the linear length of the heat exchange pipe is shortened under the condition that the heat exchange path length of the heat exchange pipe is unchanged, which conforms to the development trend of miniaturization of the heat exchanger. BRIEF DESCRIPTION OF DRAWINGS

[0010] ​In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the accompanying drawings needed to be used in the embodiments or prior art description will be briefly introduced. Obviously, the accompanying drawings in the following description are only some examples or embodiments of the present application, and for those skilled in the art, other drawings can be obtained from the provided drawings without any creative effort, and the present application can also be applied to other similar scenarios according to the provided drawings. Unless it is obvious from the language environment or otherwise stated, the same reference numbers in the drawings represent the same structure or operation.

[0011] Figure 1 is a structural schematic diagram of a prior art heat exchanger; Figure 2 is a structural schematic diagram of a heat exchanger of a first embodiment of the present application; Figure 3 is a structural schematic diagram of a heat exchanger tube and a fin connection disclosed by the first embodiment of the present application, which is curved along the length direction of the fin; Figure 4 is a structural schematic diagram of a heat exchanger tube and a fin connection disclosed by the second embodiment of the present application, which is curved along the length direction perpendicular to the fin; Figure 5 is a structural schematic diagram of a heat exchanger tube and a fin connection disclosed by the third embodiment of the present application, which is curved in different directions of two adjacent heat exchanger tubes; Figure 6 is a structural schematic diagram of a heat exchanger tube and a fin connection disclosed by the fourth embodiment of the present application, which is located between the heat exchanger tubes on both sides of the middle collecting tube and the included angle is not 180°; Figure 7 is a structural schematic diagram of a heat exchanger tube and a fin connection disclosed by the fifth embodiment of the present application, which is located between the heat exchanger tubes on both sides of the middle collecting tube and the included angle is 180°; Figure 8 is a structural schematic diagram of a heat exchanger tube and a fin connection disclosed by the sixth embodiment of the present application; Figure 9 is an exploded structural schematic diagram of a cover plate and a fin structure of the seventh embodiment of the present application.

[0012] The accompanying drawings are described as follows: 001-heat exchanger tube; 002-fin; 003-collecting tube; 100-heat exchanger tube; 110-peak; 120-trough; 200-end collecting tube; 300-fin; 310-clamping groove; 311-guide section; 312-clamping section; 313-slot; 314-slot wall; 320-fin unit; 330-connection plate; 340-first side edge; 350-second side edge; 400-middle collecting tube; 500-cover plate; 510-insert slot. DETAILED DESCRIPTION

[0013] The application will be described in further detail below with reference to the drawings and embodiments. It is to be understood that the specific embodiments described herein are merely illustrative of the application and are not intended to limit the application. The embodiments described are only a part of the embodiments of the application, not all the embodiments. Based on the embodiments in the application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the scope of protection of the application.

[0014] It should be noted that, for the convenience of description, only parts related to the application are shown in the drawings. The embodiments in the application and the features in the embodiments can be combined with each other in any way without conflict, as long as the combined technical features are not contradictory. All feasible feature combinations are the technical content explicitly described herein. Any one of the multiple features contained in the same sentence can be independently applied, and does not have to be applied together with other features.

[0015] As shown in the application and claims, unless the context clearly indicates otherwise, “one”, “a”, “an” and / or “the” do not refer to the singular, but can also include the plural. Generally, the terms “comprise” and “include” only indicate the inclusion of the steps and elements explicitly identified, and these steps and elements do not constitute an exclusive list, and the method or device can also include other steps or elements. The element defined by the phrase “comprising a” does not exclude the presence of additional identical elements in the process, method, product or device comprising the element.

[0016] In the description of the embodiments of the application, “ / ” represents or unless otherwise specified, for example, A / B can represent A or B; “and / or” herein is only a description of the association between the associated objects, which means that there can be three relationships, for example, A and / or B, which can represent: A alone, A and B together, and B alone. In addition, in the description of the embodiments of the application, “multiple” means two or more than two.

[0017] Please refer to Figures 1-9 .

[0018] Some embodiments of the application disclose a heat exchanger, comprising an end header 200, a heat exchange pipe 100 and a fin 300, the end header 200 has a fluid passage, the heat exchange pipe 100 is connected with the fin 300.

[0019] In some embodiments, the heat exchange pipe 100 is wavy, the heat exchange pipe 100 communicates with the end header 200, specifically, the heat exchange pipe 100 is wavy along the length direction of itself, Figure 2The length direction of the heat exchange pipe 100 is indicated, the fin 300 has a clamping groove 310, at least part of the heat exchange pipe 100 is clamped in the clamping groove 310, the clamping groove 310 is matched with the shape of the heat exchange pipe 100, the clamping groove 310 has a slot 313, the heat exchange pipe 100 is slid into the clamping groove 310 through the slot 313, so as to realize the connection of the fin 300 and the heat exchange pipe 100. Optionally, after the fin 300 is connected with the heat exchange pipe 100 through the clamping groove 310, the fin 300 and the heat exchange pipe 100 are welded or bonded or interference fit connected.

[0020] The plane where the fin 300 is located and the length direction of the heat exchange pipe 100 form an angle, and optionally, the included angle between the plane where the fin 300 is located and the length direction of the heat exchange pipe 100 is 90°.

[0021] The wave of the heat exchange pipe 100 can be one of a sine wave, a V-shaped wave, a U-shaped wave or a square wave, or a combination of at least two of them. In the length direction of the heat exchange pipe 100, the wave structure can be continuously arranged or non-continuously arranged.

[0022] The heat exchange pipe 100 of the heat exchanger disclosed in the present application is in a wave shape. Under the premise that the heat exchange path length of the heat exchange pipe 100 is unchanged, the straight line length of the wave-shaped heat exchange pipe 100 is shortened (it should be noted here that the straight line length of the heat exchange pipe 100 is the straight line distance between the two end portions of the heat exchange pipe 100 along the length direction of the heat exchange pipe 100, and the end portion is communicated with the header, which can be an end header 200 or a middle header 400). On the basis of not affecting the heat exchange capacity of the heat exchanger, the space occupied by the heat exchange pipe 100 in the length direction of itself is reduced, thereby reducing the overall volume of the heat exchanger in the length direction of the heat exchange pipe 100, which meets the development trend of miniaturization of the heat exchanger.

[0023] In the related art, the heat exchange pipe 100 is a straight pipe, and the connection between the heat exchange pipe 100 and the fin 300 is achieved by inserting and connecting the heat exchange pipe 100 and the through hole of the fin 300. When installing, one end of the heat exchange pipe 100 in the length direction is sequentially inserted through the through holes of multiple fins 300, thereby realizing the connection of one heat exchange pipe 100 and multiple fins 300. The heat exchange pipe 100 disclosed in the present application is in a wave shape, and the height of the heat exchange pipe 100 at different positions along the length direction thereof is different, which increases the difficulty of the heat exchange pipe 100 passing through the through hole of the fin 300. In the present application, the through hole of the fin 300 is changed to the clamping groove 310, and the circumferential side wall of the heat exchange pipe 100 is directly slid into the clamping groove 310 through the slot 313 of the clamping groove 310, thereby realizing the clamping of the heat exchange pipe 100 into the fin 300 perpendicular to the length direction of the heat exchange pipe 100. The assembly direction of the heat exchange pipe 100 and the fin 300 is changed, and the installation problem of the curved heat exchange pipe 100 and the fin 300 is solved.

[0024] The notch 313 of the clamping groove 310 is located at the side edge of the fin 300, wherein the side edge of the fin 300 is perpendicular to the plane in which the fin 300 is located and parallel to the length direction of the fin 300.

[0025] In addition, the heat exchange tube 100 and the fin 300 are connected in the form of clamping connection, which can also reduce the difficulty of disassembling the heat exchange tube 100 and the fin 300 to a certain extent.

[0026] The heat exchanger also has an end header 200 and / or a middle header 400, and a plurality of heat exchange tubes 100 are arranged side by side along the length direction of the end header 200 or the middle header 400.

[0027] In some embodiments, the number of fins 300 is at least two, and a single fin 300 is connected with the plurality of heat exchange tubes 100 arranged side by side, and optionally, the single fin 300 is arranged perpendicular to the length direction of the heat exchange tube 100, and the at least two fins 300 are arranged side by side along the length direction of the heat exchange tube 100.

[0028] In some embodiments, the clamping groove 310 of the fin 300 corresponds to the position of the wave crest 110 or the wave trough 120 of the heat exchange tube 100. Since there is a larger space near the position of the wave crest 110 or the wave trough 120 of the wave-shaped heat exchange tube 100, the connection difficulty of the fin 300 and the heat exchange tube 100 can be reduced to a certain extent.

[0029] Optionally, the two adjacent fins 300 can be connected with the wave crest 110 of the heat exchange tube 100, or can be connected with the wave trough 120 of the heat exchange tube 100, or one of them can be connected with the wave crest 110 of the heat exchange tube 100, and the other can be connected with the wave trough 120 of the heat exchange tube 100. When the wave crest 110 and the wave trough 120 of the heat exchange tube 100 are both provided with the fin 300, the setting density of the fin 300 is relatively large, and the heat exchange area is large.

[0030] The connection position of the fin 300 and the heat exchange tube 100 is not limited to the position of the wave crest 110 and the wave trough 120, but can also be any position between the wave crest 110 and the wave trough 120.

[0031] In the arrangement direction of the heat exchange tube 100, only one fin 300 can be arranged, and the one fin 300 is connected with all the heat exchange tubes 100 of the heat exchanger, or two or more fins 300 can be arranged, and the one fin 300 is connected with part of the heat exchange tubes 100 of the heat exchanger. The specific arrangement is selected by a person skilled in the art according to actual needs.

[0032] As shown in FIG. 1, the heat exchanger comprises a plurality of heat exchange tubes 100 and a plurality of fins 300. Figures 2-7As shown, the fin 300 is a long strip-shaped plate structure, and the side edge of the fin 300 has oppositely arranged first and second side edges 340 and 350, which are perpendicular to the plane in which the fin 300 is located and are located at two ends of the fin 300 in the width direction, respectively.

[0033] In some embodiments, the slot opening 313 of the clamping groove 310 is located at the first side edge 340 of the fin 300, and at least two heat exchange tubes 100 are installed on the same side of the fin 300. During installation, the clamping groove 310 of the fin 300 corresponds to the position of the wave crest 110 or the wave trough 120 of the heat exchange tube 100, and the fin 300 moves towards the heat exchange tube 100 to enable the heat exchange tube 100 to slide into the clamping groove 310 through the slot opening 313.

[0034] In this embodiment, the clamping connection between the fin 300 and the plurality of heat exchange tubes 100 can be achieved at one time, and compared with the prior art in which the plurality of heat exchange tubes 100 are sequentially inserted through the through hole of the fin 300, the connection difficulty between the heat exchange tube 100 and the fin 300 is reduced, and the installation efficiency is improved.

[0035] In some embodiments, the number of clamping grooves 310 provided on the fin 300 is equal to the number of heat exchange tubes 100, so as to ensure that each heat exchange tube 100 is clamped and connected with the fin 300, thereby improving the heat exchange efficiency of the heat exchanger and ensuring the connection strength between the heat exchange tube 100 and the fin 300.

[0036] The slot opening 313 of the clamping groove 310 located at the second side edge 350 of the fin 300 is the same as the slot opening 313 of the clamping groove 310 located at the first side edge 340 of the fin 300, and will not be described here.

[0037] In the embodiments in which the clamping groove 310 is located at the first side edge 340 or the second side edge 350 of the fin 300, the first side edge 340 or the second side edge 350 of the fin 300 has a plurality of slot openings 313, which will reduce the strength of the first side edge 340 or the second side edge 350 of the fin 300. In order to ensure the strength of the fin 300, the heat exchanger disclosed in the present application further comprises a cover plate 500, the cover plate 500 has a slot 510, and at least part of the first side edge 340 or the second side edge 350 of the fin 300 is located in the slot 510, and the slot bottom of the slot 510 blocks the slot opening 313 of the clamping groove 310.

[0038] The cover plate 500 can block and fix the slot opening 313 of the first side edge 340 or the second side edge 350 of the fin 300, so as to reduce the risk of deformation of the slot opening 313, and the cover plate 500 can also press the heat exchange tube 100 in the clamping groove 310, so as to prevent the heat exchange tube 100 from being pulled out of the slot opening 313 of the clamping groove 310.

[0039] The thickness of the cover plate 500 is greater than the thickness of the fin 300, and the slot 510 formed on the cover plate 500 is in clearance fit with the fin 300, so as to reduce the difficulty of fit between the cover plate 500 and the fin 300 through the slot 510, and realize the preliminary connection between the cover plate 500 and the fin 300.

[0040] In order to further enhance the connection strength between the cover plate 500 and the fin 300, the cover plate 500 and the fin 300 can be further fixed by welding.

[0041] In some embodiments, the first side edge 340 and the second side edge 350 of the fin 300 are provided with the clamping groove 310, and the orientations of the notches 313 of the clamping grooves 310 located on the first side edge 340 and the second side edge 350 of the fin 300 are opposite, specifically, the notch 313 of the clamping groove 310 located on the first side edge 340 of the fin 300 faces the first side edge 340 of the fin 300, and the notch 313 of the clamping groove 310 located on the second side edge 350 of the fin 300 faces the second side edge 350 of the fin 300.

[0042] During installation, the heat exchange pipe 100 connected with the clamping groove 310 of the first side edge 340 of the fin 300 is installed first, then the first side edge 340 of the fin 300 is connected with the heat exchange pipe 100, then the heat exchange pipe 100 connected with the clamping groove 310 of the second side edge 350 of the fin 300 is installed, and finally the second side edge 350 of the fin 300 is connected with the heat exchange pipe 100.

[0043] The clamping grooves 310 located on the first side edge 340 and the second side edge 350 of the fin 300 can be relatively distributed in the length direction of the fin 300, or can be distributed in a staggered manner.

[0044] When the clamping grooves 310 located on the first side edge 340 and the second side edge 350 of the fin 300 are distributed in a staggered manner in the length direction of the fin 300, the width of the fin 300 can be reduced to a certain extent, so as to reduce the overall volume of the fin 300 combined with the heat exchange pipe 100 in the direction perpendicular to the plane of the heat exchanger, and meet the development trend of shortening the heat exchanger.

[0045] Meanwhile, the clamping grooves 310 distributed on the first side edge 340 and the second side edge 350 in the length direction of the fin 300 can make the overall strength of the fin 300 relatively stable.

[0046] In some embodiments, the cover plate 500 is arranged on both the first side edge 340 and the second side edge 350 of the fin 300, the cover plate 500 is provided with a slot 510, and the first side edge 340 and the second side edge 350 of the fin 300 are at least partially inserted into the slot 510, respectively. The bottom of the slot 510 blocks the slot opening 313 of the clamping groove 310, so as to enhance the strength of the first side edge 340 and the second side edge 350 of the fin 300 and prevent the slot opening 313 from being deformed.

[0047] In some embodiments, the clamping grooves 310 are distributed in the same height along the length direction of the fin 300. Specifically, a plurality of clamping grooves 310 are located on the same straight line along the length direction of the fin 300. After the heat exchange tube 100 is connected with the clamping groove 310 of the fin 300, different heat exchange tubes 100 are located on the same plane, which further reduces the size of the heat exchanger in the direction perpendicular to the plane where the heat exchanger is located, and conforms to the development trend of miniaturization of the heat exchanger.

[0048] In some embodiments, the clamping grooves 310 are distributed in a staggered manner along the length direction of the fin 300, that is, there is a height difference between adjacent two clamping grooves 310 in the width direction of the fin 300. After the heat exchange tube 100 is connected with the clamping groove 310 of the fin 300, two layers of heat exchange tubes 100 are formed on the fin 300, and the two layers of heat exchange tubes 100 are arranged in parallel or not in parallel.

[0049] The two layers of heat exchange tubes 100 can be located on the same side of the axis of the collecting pipe 200, or can be located on both sides of the axis of the collecting pipe 200, respectively.

[0050] In this embodiment, the two layers of heat exchange tubes 100 can increase the heat exchange area of the heat exchanger, and provide the heat exchange efficiency of the heat exchanger.

[0051] The heat exchange tube 100 has a plurality of bending directions. Here, the bending direction refers to the arrangement direction of the wave crest 110 and the wave trough 120 of the heat exchange tube 100, and the arrangement direction of the wave crest 110 and the wave trough 120 is indicated in the following description. Figure 8

[0052] In some embodiments, the heat exchange tube 100 is bent along the length direction of the fin 300, and at this time, the wave crest 110 and the wave trough 120 of the heat exchange tube 100 are arranged along the length direction of the fin 300; or, the heat exchange tube 100 is bent along the direction perpendicular to the length direction of the fin 300, and at this time, the wave crest 110 and the wave trough 120 of the heat exchange tube 100 are arranged along the direction perpendicular to the length direction of the fin 300.

[0053] Figure 3 For the embodiment in which the heat exchange tube 100 is bent along the length direction of the fin 300, Figure 4 For the embodiment in which the heat exchange tube 100 is bent along the direction perpendicular to the length direction of the fin 300.

[0054] ​In the embodiment in which the heat exchange tube 100 is bent along the length direction of the fin 300, the peak of one of the two adjacent heat exchange tubes 100 corresponds to the peak of the other of the two adjacent heat exchange tubes 100, which can ensure the number of the heat exchange tubes 100 and reduce the volume along the length direction of the heat exchange tube 100, but the size of the heat exchanger in the length direction of the fin 300 is slightly increased.

[0055] In the embodiment in which the heat exchange tube 100 is bent along the length direction of the fin 300, the peak of one of the two adjacent heat exchange tubes 100 corresponds to the peak of the other of the two adjacent heat exchange tubes 100, which can ensure the number of the heat exchange tubes 100 and reduce the volume along the length direction of the heat exchange tube 100, but the size of the heat exchanger in the length direction of the fin 300 is slightly increased.

[0056] In some embodiments, the two adjacent heat exchange tubes 100 have a height difference in the direction perpendicular to the bending direction of the heat exchange tube 100, so that the two adjacent heat exchange tubes 100 are distributed in a staggered manner in the direction perpendicular to the bending direction of the heat exchange tube 100, thereby increasing the heat exchange area of the heat exchange tube 100 and improving the heat exchange efficiency.

[0057] The bending directions of the two adjacent heat exchange tubes 100 can be the same or different.

[0058] Figure 3 And Figure 4 For the embodiment in which the bending directions of the two adjacent heat exchange tubes 100 are the same, Figure 5 For the embodiment in which the bending directions of the two adjacent heat exchange tubes 100 are different.

[0059] Along the length direction of the fin 300, the bending direction of the heat exchange tube 100 can be adjusted according to the heat exchange requirement and the space requirement. In this embodiment, the heat exchanger as a whole can have a structure with equal thickness at different positions, or can have a thickness difference at different positions, wherein the thickness of the heat exchanger is the size in the direction perpendicular to the arrangement direction of the heat exchange tube 100.

[0060] The person skilled in the art can select whether to increase the size in the thickness direction of the heat exchanger or the size in the arrangement direction of the heat exchange tube 100 according to the installation space of the heat exchanger and the heat exchange requirement.

[0061] In the embodiment in which the heat exchange tube 100 is bent along the length direction of the fin 300, the height difference between the peak 110 and the valley 120 of the heat exchange tube 100 is not more than the pipe diameter of the end header 200, so as to reduce the size of the heat exchange tube 100 in the direction perpendicular to the length direction of the fin 300, and further reduce the overall thickness of the heat exchanger. The height difference between the peaks 110 and troughs 120 of the heat exchange tube 100 can also be greater than the diameter of the end manifold 200. This embodiment can make the heat exchange length of the heat exchange tube 100 longer, extend the heat exchange path of the heat exchange tube 100, and enhance the heat exchange capacity of the heat exchanger, but it will also increase the overall thickness of the heat exchanger to a certain extent.

[0062] In some embodiments, the fins 300 are arranged along the length of the heat exchange tube 100. For example... Figure 8 As shown, the fin 300 includes at least two fin units 320 and a connecting plate 330. Each fin unit 320 has a slot 310. The at least two fin units 320 are arranged side-by-side along the length of the heat exchange tube 100. The connecting plate 330 is also arranged along the length of the heat exchange tube 100 and is used to connect multiple fin units 320. In this embodiment, the fin units 320 and the connecting plate 330 are welded together, and both the fin units 320 and the connecting plate 330 are capable of heat conduction.

[0063] In this embodiment, the length of the connecting plate 330 can be equal to or different from the length of the heat exchange tube 100.

[0064] In an embodiment where the length of the connecting plate 330 is not equal to the length of the heat exchange tube 100, the length of the connecting plate 330 is less than the length of the heat exchange tube 100, and at least two fins 300 are sequentially arranged along the length direction of the heat exchange tube 100.

[0065] In an embodiment where the fins 300 are arranged along the length of the heat exchange tube 100, the distance between two adjacent fin units 320 can be the distance between a peak 110 and a trough 120. The length of the fin unit 320 used to connect with the peak 110 and the length of the fin unit 320 used to connect with the trough 120 can be equal or unequal.

[0066] In this embodiment, finned units 320 can be provided only on one side of the connecting plate 330, or finned units 320 can be provided on both sides of the connecting plate 330. In the embodiment where finned units 320 are provided on both sides of the connecting plate 330, the finned units 320 on both sides of the connecting plate 330 are symmetrically distributed. In this embodiment, one fin 300 can be snapped to two heat exchange tubes 100, thereby reducing the space occupied by the fin 300 along the length direction of the end manifold 200 and facilitating the arrangement of more heat exchange tubes 100.

[0067] In an embodiment where the fins 300 are arranged along the length of the heat exchange tube 100, the distance between two adjacent fin units 320 can be the distance between two peaks 110 or two troughs 120, and the lengths between two adjacent fin units 320 are equal. In this embodiment, as shown... Figure 8As shown, the fin 300 can be arranged on both sides of the length direction of the heat exchange pipe 100, and the fin unit 320 of one fin 300 is connected with the wave crest 110 of the heat exchange pipe 100, and the fin unit 320 of the other fin 300 is connected with the wave trough 120 of the heat exchange pipe 100.

[0068] In this embodiment, the fin unit 320 can be arranged on one side of the connecting plate 330, or arranged on both sides of the connecting plate 330. In the embodiment in which the fin unit 320 is arranged on both sides of the connecting plate 330, the fin units 320 arranged on both sides of the connecting plate 330 are distributed in a staggered manner. In this embodiment, one fin 300 can be connected with two heat exchange pipes 100 through clamping, so as to reduce the space occupied by the fin 300 along the length direction of the manifold 200, and facilitate the arrangement of more heat exchange pipes 100.

[0069] In some embodiments, the clamping groove 310 comprises a guiding section 311 and a clamping section 312, one end of the guiding section 311 is provided with a notch 313, and the other end of the guiding section 311 is communicated with the clamping section 312, wherein the guiding section 311 is used for guiding the heat exchange pipe 100 to enter the clamping section 312, and the clamping section 312 is used for clamping and fixing the heat exchange pipe 100, and the shape of the clamping section 312 is matched with the shape of the heat exchange pipe 100.

[0070] Specifically, the shape of the clamping section 312 is the same as the cross-sectional shape of the heat exchange pipe 100, and the clamping section 312 is in clearance fit or interference fit with the heat exchange pipe 100.

[0071] The size of the guiding section 311 is smaller than the size of the clamping section 312, so that after the heat exchange pipe 100 slides into the clamping section 312, the guiding section 311 can limit the heat exchange pipe 100, and the heat exchange pipe 100 will not slide out of the guiding section 311 automatically.

[0072] In order to reduce the difficulty of the heat exchange pipe 100 being loaded into the clamping groove 310, one end of the guiding section 311 provided with the notch 313 is a tapered section, and the size of the end of the tapered section away from the clamping groove is larger than the size of the end of the tapered section close to the clamping groove. Optionally, the end of the tapered section away from the clamping groove is in clearance fit with the heat exchange pipe 100.

[0073] Optionally, the end of the tapered section away from the clamping groove is provided with a rounded corner, so as to reduce the risk of damage to the heat exchange pipe 100 when the heat exchange pipe 100 slides into the clamping section 312 from the guiding section 311.

[0074] In some embodiments, the heat exchange pipe 100 is an aluminum round pipe, and the aluminum round pipe has a fluid channel with a circular flow surface inside, which provides a large flow space for the cooling liquid, improves the flow smoothness of the cooling liquid, and reduces the risk of blockage.

[0075] In some embodiments, the heat exchange tube 100 is an aluminum flat tube, and the aluminum flat tube has a fluid channel with a long strip-shaped flow surface inside, and the cross-sectional area is relatively small. After the cooling liquid enters the heat exchange tube 100, the flow speed is accelerated, and the risk of blockage is reduced. The heat exchange tube 100 is not limited to a round tube or a flat tube, and can also be other cross-sectional shapes, which are not specifically limited here.

[0076] The heat exchanger disclosed in the present application can be applied to a micro-channel heat exchanger, and can also be applied to other types of heat exchangers. The heat exchanger also has a middle header 400 between two end headers 200, wherein the end headers 200 are located at both ends of the heat exchanger, the middle header 400 is located in the middle of the heat exchanger, the middle header 400 is parallel to the end headers 200, and the middle header 400 and the end headers 200 are both provided with heat exchange tubes 100. The included angle between the heat exchange tubes 100 located on both sides of the middle header 400 is 0°-180°, not including 0°.

[0077] When the included angle between the heat exchange tubes 100 located on both sides of the middle header 400 is 180°, as shown in FIG. 1, the end headers 200, the heat exchange tubes 100 and the middle header 400 are located in the same plane, and the heat exchanger is a flat plate type; when the included angle between the heat exchange tubes 100 located on both sides of the middle header 400 is not 180°, as shown in FIG. 2, the heat exchanger as a whole is V-shaped. Figure 7 Figure 6

[0078] In some embodiments, the end portions of at least two heat exchange tubes 100 are distributed along the circumferential direction of the end header 200.

[0079] The above description is only the preferred embodiment of the present application and the explanation of the applied technical principles, and is not used to limit the present application. For those skilled in the art, the present application can have various changes and variations. The application range involved in the present application is not limited to the technical solutions formed by the specific combination of the above technical features, and should also cover other technical solutions formed by the combination of the above technical features or equivalent features without departing from the above application concept. For example, the technical solutions formed by the mutual replacement of the above features and the technical features disclosed in the present application (but not limited to) with similar functions.​​

Claims

1. A heat exchanger, characterized in that, include: An end manifold (200) having a fluid passage; A heat exchange tube (100) is wavy along its length and is connected to the end manifold (200). The fin (300) has a slot (310) in which at least a portion of the heat exchange tube (100) is engaged, and the slot (313) of the slot (310) is located on the side of the fin (300).

2. The heat exchanger according to claim 1, characterized in that, The number of fins (300) is at least two, each fin (300) is connected to a plurality of heat exchange tubes (100) arranged side by side, at least two fins (300) are arranged side by side along the length of the heat exchange tubes (100), and the slots (310) of the fins (300) correspond to the positions of the crests (110) or troughs (120) of the heat exchange tubes (100).

3. The heat exchanger according to claim 1 or 2, characterized in that, The side includes a first side (340) and a second side (350), the first side (340) and the second side (350) are opposite each other, and the slots (313) of two adjacent slots (310) are located on the first side (340) and the second side (350) of the fin (300) respectively.

4. The heat exchanger according to claim 3, characterized in that, In the longitudinal direction of the fin (300), the slots (310) located on the first side (340) and the second side (350) of the fin (300) are misaligned or relatively distributed.

5. The heat exchanger according to claim 1, 2, or 4, characterized in that, It also includes a cover plate (500) having a slot (510) at least a portion of the side of the fin (300) located in the slot (510), the bottom of the slot (510) blocking the opening (313) of the slot (310).

6. The heat exchanger according to claim 1, characterized in that, The heat exchange tube (100) is bent along the length of the fins (300); or, The heat exchange tube (100) is bent along a direction perpendicular to the length of the fins (300); or, The two adjacent heat exchange tubes (100) have a height difference perpendicular to the bending direction.

7. The heat exchanger according to claim 1, characterized in that, The fins (300) include: At least two finned units (320) having the slot (310) are arranged side by side along the length of the heat exchange tube (100); A connecting plate (330) is provided along the length of the heat exchange tube (100) for connecting multiple finned units (320).

8. The heat exchanger according to claim 1, 2, 4, 6, or 7, characterized in that, The slot (310) includes a guide section (311) and a snap-fit ​​section (312). One end of the guide section (311) is provided with the slot (313), and the other end of the guide section (311) is connected to the snap-fit ​​section (312). The snap-fit ​​section (312) is adapted to the shape of the heat exchange tube (100).

9. The heat exchanger according to claim 8, characterized in that, The heat exchange tube (100) is welded to the groove wall (314) of the slot (310), or the heat exchange tube (100) is bonded to the groove wall (314) of the slot (310).

10. The heat exchanger according to claim 1, 2, 4, 6, 7, or 9, characterized in that, The heat exchanger has a central manifold (400) located between the two end manifolds (200), the central manifold (400) being parallel to the end manifolds (200), and each of the two end manifolds (200) having a heat exchange tube (100); and / or, At least two of the heat exchange tubes (100) have their ends distributed circumferentially along the end manifold (200); and / or, The heat exchange tube (100) is an aluminum round tube with a fluid channel with a circular flow surface inside.

Images