Heat exchanger and processing method thereof

Abstract

The invention provides a heat exchanger and a processing method of the heat exchanger, which comprises the following steps: providing a plurality of fin groups, providing a plurality of first heat exchange tubes and a plurality of second heat exchange tubes, inserting the plurality of first heat exchange tubes into a plurality of mounting parts of one fin group in the length direction of the fin group, and assembling to obtain a first heat exchange core body; and a plurality of second heat exchange tubes are inserted into a plurality of mounting parts of another fin set in the length direction of the fin set, a second heat exchange core body is obtained after assembly is completed, at least one of the first heat exchange core body and the second heat exchange core body is moved or rotated, and the first heat exchange core body and the second heat exchange core body are assembled. Therefore, the first heat exchange tube and the second heat exchange tube are directly or indirectly connected. According to the heat exchanger and the heat exchanger machining method, bending deformation of the heat exchange tubes can be reduced, and the reliability of the heat exchanger can be improved.

Description

Technical Field

[0001] The present invention relates to the technical field of heat exchange, and particularly relates to a heat exchanger and a processing method thereof. Background Art

[0002] In the related art, a heat exchanger mainly includes a plurality of heat exchange tubes and a plurality of fins arranged in parallel. Refrigerant flows inside the heat exchange tubes. One heat exchange tube penetrates through a plurality of fins, and the fins exchange heat with air. The plurality of fins are spaced apart in the length direction of the heat exchange tubes. In some designs, in order to increase the heat exchange performance and meet different application and installation requirements, the heat exchanger is also made into a large-sized heat exchanger. Therefore, the heat exchange tubes need to adopt a tube type with a longer length dimension. However, due to the smaller diameter of some heat exchangers, the heat exchange tubes are prone to bending and deformation during the assembly process, increasing the installation difficulty between the heat exchange tubes and the fins, resulting in low production efficiency of the heat exchanger. Summary of the Invention

[0003] For this reason, on the one hand, the present invention provides a heat exchanger, which is beneficial to reducing the bending of the heat exchange tubes and improving the assembly efficiency of the heat exchanger.

[0004] On the other hand, the present invention provides a processing method of a heat exchanger. Using this processing method for manufacturing is beneficial to reducing the bending of the heat exchange tubes and improving the assembly efficiency of the heat exchanger.

[0005] A processing method of a heat exchanger includes providing a plurality of fins. The fins include a plurality of mounting parts spaced apart along their length direction. The plurality of fins are spaced apart in the thickness direction of the fins. A fin group includes a plurality of the fins. The fin group is two or more. The thickness direction of the fins is the first direction, and the length direction of the fins is defined as the second direction. The first direction is perpendicular to the second direction. Limit the fin group in the first direction and limit the fin group in the second direction.

[0006] Provide a plurality of first heat exchange tubes and a plurality of second heat exchange tubes. The first heat exchange tubes and the second heat exchange tubes have a lumen. One fin group includes a plurality of mounting parts in the first direction. The first heat exchange tubes are inserted into the plurality of mounting parts parallel to the first direction. Repeat the step of inserting the first heat exchange tubes into the plurality of mounting parts parallel to the first direction until the assembly of the plurality of first heat exchange tubes and one fin group is completed, obtaining a first heat exchange core. Another fin group includes a plurality of the mounting parts in the first direction. The second heat exchange tubes are inserted into the plurality of mounting parts of the other fin group parallel to the first direction. Repeat the step of inserting the second heat exchange tubes into the plurality of mounting parts of the other fin group parallel to the first direction until the assembly of the plurality of second heat exchange tubes and the other fin group is completed, obtaining a second heat exchange core.

[0007] The first heat exchange core is placed at a first preset position, and the second heat exchange core is placed at a second preset position. At least one of the first heat exchange core and the second heat exchange core is moved or rotated so that the first heat exchange tube and the second heat exchange tube are directly or indirectly connected.

[0008] According to the heat exchanger processing method of the embodiment of the present invention, the first heat exchange core is obtained by repeatedly inserting a plurality of the first heat exchange tubes into the plurality of mounting portions of a fin group in a direction parallel to the first direction, and the second heat exchange core is obtained by repeatedly inserting a plurality of the second heat exchange tubes into the plurality of mounting portions of the other fin group in a direction parallel to the first direction. At least one of the first heat exchange core and the second heat exchange core is rotated or moved, so as to facilitate the processing of obtaining a heat exchanger with reduced bending deformation of the heat exchange tubes, facilitate the improvement of the reliability of the heat exchanger, and facilitate the improvement of the assembly efficiency of the heat exchanger.

[0009] In some embodiments, one of the first heat exchange tube and the second heat exchange tube includes a flared portion, the flared portion includes an inner cavity, and the other heat exchange tube includes a reduced diameter portion. Before the step of moving the first heat exchange core and / or the second heat exchange core, the following steps are further included: placing solder on at least a part of the outer peripheral wall of the reduced diameter portion so that the flared portion and the reduced diameter portion can be welded and fixed.

[0010] In some embodiments, the first heat exchange tube includes the reduced diameter portion and a first straight portion, the first straight portion includes a first cavity, the second heat exchange tube includes the flared portion and a second straight portion, the second straight portion includes a second cavity. The first heat exchange core is limited in the first direction and limited in the second direction. The second heat exchange core is moved a preset distance L in the length direction of the second heat exchange tube so that a part of the first straight portion is located in the inner cavity of the flared portion, and a part of the reduced diameter portion is located in the second cavity of the second heat exchange tube.

[0011] In some embodiments, it includes providing a third piece, where the third piece has a third cavity, placing the third piece at a third preset position, moving the first heat exchange core and / or the second heat exchange core, applying an external force to the first heat exchange core and / or applying an external force to the second heat exchange core, so that the other end of the first heat exchange tube is fixedly connected to the third piece, and the other end of the second heat exchange tube is fixedly connected to the third piece; or, providing a third piece, where the third piece has a third cavity, placing the third piece at a third preset position, moving the third piece, applying an external force to the third piece, so that the first heat exchange tube is fixedly connected to the third piece, moving the second heat exchange core, applying an external force to the second heat exchange core, so that the second heat exchange tube is fixedly connected to the third piece.

[0012] In some embodiments, it includes that the third piece has a thread, connecting the other end of the first heat exchange tube to one end of the third piece, and rotating the third piece counterclockwise or clockwise.

[0013] In some embodiments, it includes that while moving the first heat exchange core and / or the second core, rotating the third piece counterclockwise or clockwise, so that the first heat exchange core approaches the second heat exchange core, so that one end of the third piece is connected to the other end of the first heat exchange tube, and the other end of the third piece is connected to the other end of the second heat exchange tube.

[0014] On the other hand, the present invention also proposes a heat exchanger, a first tube and a second tube;

[0015] Fins, the fins have a plurality of mounting parts arranged at intervals in the fin length direction, there are two or more fins, and two or more of the fins are arranged at intervals in a first direction perpendicular to the length direction of the first tube;

[0016] Heat exchange tubes, part of the heat exchange tubes are located in the mounting parts, there are two or more heat exchange tubes, and two or more of the heat exchange tubes are arranged in the length direction of the first tube. The heat exchange tubes include a first heat exchange tube and a second heat exchange tube. The first heat exchange tube is connected to the first tube, the second heat exchange tube is connected to the first tube. The first heat exchange tube includes a first channel, and the first channel extends in the length direction of the first heat exchange tube. The second heat exchange tube includes a second channel, and the second channel extends in the length direction of the second heat exchange tube.

[0017] According to the heat exchanger of the embodiment of the present invention, by directly connecting or indirectly connecting the first heat exchange tube and the second heat exchange tube, directly connecting or indirectly connecting the first heat exchange tube and the first component, and directly connecting or indirectly connecting the second heat exchange tube and the second component, it is beneficial to reduce the bending deformation of the heat exchange tube, improve the reliability of the heat exchange tube, and improve the reliability of the heat exchanger.

[0018] In some embodiments, the flow cross-sectional area of the first channel is larger than that of the second channel.

[0019] In some embodiments, the flow cross-sectional area of the first channel is S1, the flow cross-sectional area of the second channel is S2, and the ratio of S1 to S2 is greater than 1 and less than 3.

[0020] In some embodiments, the first heat exchange tube includes a first end and a second end, the second heat exchange tube includes a third end and a fourth end, the first end of the first heat exchange tube is connected to the first tube, the fourth end of the second heat exchange tube is connected to the second tube, and at least one of the third end and the fourth end includes a flared portion; or, at least one of the third end and the fourth end includes a reduced diameter portion; or, at least one of the third end and the fourth end includes a flat end portion.

[0021] In some embodiments, the heat exchanger includes a third component, there are multiple third components, the third component includes a fifth end and a sixth end, the fifth end of the third component is connected to the first heat exchange tube, and the sixth end of the third component is connected to the second heat exchange tube.

[0022] In some embodiments, at least one of the fifth end and the sixth end includes a flared portion, or, at least one of the fifth end and the sixth end includes a reduced diameter portion; or, at least one of the fifth end and the sixth end includes a flat end portion. Description of the Drawings

[0023] Figure 1 is a flowchart of the heat exchanger processing method provided by the embodiment of the present invention.

[0024] Figure 2 is Figure 1 a more specific flowchart of the heat exchanger processing method shown.

[0025] Figure 3 is a flowchart of the heat exchanger processing method provided by another embodiment of the present invention.

[0026] Figure 4 is Figure 3 a more specific flowchart of the heat exchanger processing method shown.

[0027] Figure 5 It is a flowchart of a heat exchanger processing method provided by another embodiment of the present invention.

[0028] Figure 6 Is Figure 5 A specific further flowchart of the heat exchanger processing method shown.

[0029] Figure 7 Is Figure 5 A specific further flowchart of the heat exchanger processing method shown.

[0030] Figure 8 It is a schematic structural diagram of a heat exchanger according to an embodiment of the present invention.

[0031] Figure 9 Is Figure 8 A schematic structural diagram of the disassembled heat exchanger shown.

[0032] Figure 10 It is another schematic structural diagram of a heat exchanger according to an embodiment of the present invention.

[0033] Figure 11 Figure 10 A schematic structural diagram of the disassembled heat exchanger shown.

[0034] Figure 12 It is still another schematic structural diagram of a heat exchanger according to an embodiment of the present invention.

[0035] Figure 13 Figure 12 A schematic structural diagram of the disassembled heat exchanger shown.

[0036] Reference numerals:

[0037] Heat exchanger 1,

[0038] First tube 11, second tube 12,

[0039] Fins 13,

[0040] First heat exchange tube 14

[0041] Second heat exchange tube 15,

[0042] Third part 15,

[0043] Fourth part 16,

[0044] Fifth part 17. Detailed implementation manners

[0045] Embodiments of the present invention will be described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to explain the present invention, and should not be construed as limiting the present invention. In the description of the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or fixture referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as limiting the present invention.

[0046] The heat exchanger processing method according to an embodiment of the present invention will be described below with reference to the accompanying drawings.

[0047] As Figures 1-6 shown, the heat exchanger processing method according to an embodiment of the present invention includes the following operations:

[0048] Provide a plurality of fins 13, the fins 13 having a plurality of mounting portions spaced along the length direction of the fins, the plurality of fins being spaced in the thickness direction of the fins, one fin group including a plurality of the fins 13, the fin groups being two or more, limit the fin groups in a first direction, limit the fin groups in a second direction, define the length direction of the fins as the first direction, the thickness direction of the fins as the second direction, and the first direction is perpendicular to the second direction;

[0049] Provide a first heat exchange tube 14 and a second heat exchange tube 15, insert one of the first heat exchange tubes 14 into the mounting portion of one of the fin groups 13 so that one of the first heat exchange tubes 14 is limit-connected to one of the fin groups, repeat this step until the assembly of one of the first heat exchange tubes 14 and one of the fin groups is completed to obtain a first heat exchange core body, insert one of the second heat exchange tubes 15 into the mounting portion of another fin group so that one of the second heat exchange tubes 15 is limit-connected to another fin group, repeat this step until the assembly of one of the second heat exchange tubes and one of the fin groups is completed to obtain a second heat exchange core body;

[0050] Alternatively, provide a first heat exchange tube 14 and a second heat exchange tube 15. Insert the first heat exchange tube into the plurality of mounting portions of one of the fin groups, and insert one first heat exchange tube 14 into the mounting portion of one of the fin groups, thereby completing the assembly of the first heat exchange tube 14 and one of the fin groups to obtain a first heat exchange core. Insert the second heat exchange tube 15 into the plurality of mounting portions of the other fin group, and insert one second heat exchange tube 15 into the mounting portion of one of the fin groups, thereby completing the assembly of the second heat exchange tube 15 and the other fin group to obtain a second heat exchange core.

[0051] Move the first heat exchange core and / or the second heat exchange core, and apply an external force to the first heat exchange core and / or the second heat exchange core, so that one end of the first heat exchange tube 14 is located in the lumen of the second heat exchange tube 15, and one end of the first heat exchange tube 14 and one end of the second heat exchange tube 15 are fixedly connected.

[0052] Generally speaking, since the fin structures of the same specifications and dimensions are the same, and the fin group is composed of a plurality of fins 13, the mounting portions on the fin group are arranged flatly both in the length direction of the fin 13 and in the width direction of the fin 13.

[0053] In some embodiments of the present invention, the first tube 11 and the second tube are a cylindrical tube body with an inner cavity. The tube body has a tube wall. The first heat exchange tube 14 refers to a small-diameter tube body with a flow channel. The flow channel extends in the length direction of the small-diameter tube body. The first heat exchange tube 14 can allow fluid to flow through. Two or more first heat exchange tubes 14 are arranged in the length direction of the first tube 11, and one end of the first heat exchange tube 14 is connected and communicated with the first tube 11.

[0054] It can be understood that in some embodiments, in order to connect the first heat exchange tube 14 and the second heat exchange tube 15, during the operation, only the first heat exchange core can be moved, or only the second heat exchange core can be moved, or even the first heat exchange core and the second heat exchange core can be moved simultaneously, so that the first heat exchange core and the second heat exchange core move towards each other. The first heat exchange tube 14 and the second heat exchange tube 15 need to be aligned in the length direction of the first heat exchange tube 14 or the second heat exchange tube 15. The purpose of this is to facilitate the limit connection of the first heat exchange tube 14 and the second heat exchange tube 15. After confirming that the product is flat, in order to reduce the displacement of the heat exchange core, an external force can be applied only to the first heat exchange core or the second heat exchange core, so that the other end of the first heat exchange tube 14 is located at the other end of the second heat exchange tube 15. On the other hand, in order to improve the processing efficiency and reliability, an external force can be applied to the first heat exchange core and the second heat exchange core at the same time, which can improve the installation speed of the first heat exchange core and the second heat exchange core.

[0055] It can be understood that, as Figures 1-2 shown in the embodiment, the outer diameter of the other end of the first heat exchange tube 14 is smaller than the inner diameter of the other end of the second heat exchange tube 15, so that the other end of the first heat exchange tube 14 can be inserted into the other end of the second heat exchange tube 15.

[0056] In some embodiments, as Figure 2 shown, in order to improve the connection reliability and sealing performance between the first heat exchange tube 14 and the second heat exchange tube 15, when moving the first heat exchange core and / or the second heat exchange core, some materials that are beneficial to improving the connection reliability and sealing performance will be placed at the other end of the first heat exchange tube 14. For example, the solder can be a solder ring. Therefore, a solder ring can be sleeved on the outer peripheral wall of the other end of the first heat exchange tube 14. When the solder ring is heated and melted, it is beneficial to weld and fix the first heat exchange tube 14 and the second heat exchange tube 15.

[0057] It can be understood that before or after moving the first heat exchange core and the second heat exchange core, the first heat exchange tube 14 and the second heat exchange tube 15 can be arranged so that the distance between adjacent heat exchange tubes meets a predetermined value, which is beneficial to the accurate positioning of the first heat exchange tube 14 and the second heat exchange tube 15 during installation.

[0058] In some embodiments, as Figure 3 and Figure 4 shown, the heat exchanger processing method includes the following operations: providing a first heat exchange core and a second heat exchange core, placing the first heat exchange core at a first preset position, and placing the second heat exchange core at a second preset position. It can be understood that the first preset position can refer to the first operating table, and the second preset position can refer to the second operating table, or different areas on the same operating table, which can be adjusted according to the actual situation.

[0059] It also includes providing a third piece. The third piece has a third cavity and is placed at a third preset position. The third preset position can be the intermediate position between the first heat exchange core and the second heat exchange core, or a suitable third preset position can be selected according to the actual length of the first heat exchange tube 14 and the second heat exchange tube 15 and the position of the actual connection.

[0060] In some embodiments, the third piece can be placed at the third preset position for limiting, then the first heat exchange core is moved, the other end of the first heat exchange tube 14 is aligned with one end of the third piece, and then an external force is applied to the first heat exchange core to connect the first heat exchange tube 14 with the third piece. The second heat exchange core is moved and an external force is applied to the second heat exchange core, so that the second heat exchange tube 15 is fixedly connected to the third piece. In some applications, the first heat exchange core and the second heat exchange core can also be moved synchronously so that the first heat exchange core and the second heat exchange core move towards each other, thereby improving the processing efficiency.

[0061] In some other embodiments, in order to reduce the displacement of the first heat exchange core or the second heat exchange core, the third component can be moved to cooperate with the first heat exchange core. For example, the first heat exchange core is provided at a first preset position and limited, the position of the third component and the first heat exchange tube 14 is calibrated, then the third component is moved and an external force is applied to it so that the first heat exchange tube 14 is connected to the third component. After the connection between the first heat exchange tube 14 and the third component is completed, the second heat exchange core is moved and an external force is applied to the second heat exchange core, thereby completing the assembly process of the first heat exchange core, the third component and the second heat exchange core. Through the assembly connection of the third component, it is beneficial to improve the connection strength at the connection between the first heat exchange tube 14 and the second heat exchange tube 15, thereby increasing the reliability of the heat exchanger.

[0062] In some embodiments, since the third component is a tube with a length and has an inner cavity, threads can also be provided on the third component, which can be internal threads provided on the inner wall or external threads provided on the outer wall. Therefore, on the inner wall or outer wall of the other end of the first heat exchange tube 14 connected to the third component, threads that cooperate with the third component need to be provided. Similarly, on the inner wall or outer wall of the other end of the second heat exchange tube 15 connected to the third component, threads that cooperate with the third component also need to be provided. While moving the first heat exchange core and / or the second heat exchange core, the third component is rotated clockwise or counterclockwise. Therefore, for the first heat exchange tube 14, the third component and the second heat exchange tube 15 connected by threads, it is beneficial to improve the connection strength at the connection and improve the reliability of the heat exchanger.

[0063] In some embodiments, as Figure 5 shown, in order to reduce the raw material cost, the first heat exchange tube 14 and the second heat exchange tube 15 can be directly thread-connected. Specifically, threads are provided at the other end of the first heat exchange tube 14, and threads are also provided at the other end of the second heat exchange tube 15. Of course, it can be understood that the threads at the end of the first heat exchange tube 14 and the threads at the end of the second heat exchange tube 15 are provided in a matching manner. After connecting the first heat exchange tube 14 and the second heat exchange tube 15, each second heat exchange tube is simultaneously passed through a fin group composed of a plurality of fins 13.

[0064] In some embodiments, as Figure 6 and Figure 7 shown, the third component can also be first assembled with the first heat exchange tube 14 by thread connection, then the third component is connected to the second heat exchange tube 15, and then each second heat exchange tube 15 is simultaneously passed through a fin group composed of a plurality of fins 13. By first connecting the third component 17 to the second heat exchange tube 15, it is beneficial to reduce the displacement of the fins 13 connected to the second heat exchange tube 15 during the processing, thereby improving the reliability of the heat exchanger.

[0065] It should be noted that the processing method of the present invention can be carried out in any order without conflict, and two or more operations can be carried out simultaneously.

[0066] On the other hand, the present invention also provides a heat exchanger, which includes a first tube 11, a second tube 12, a first heat exchange tube 14, a second heat exchange tube 15 and fins 13. The first tube 11 has at least one cavity, the second tube 12 also has at least one cavity, and both the first heat exchange tube 14 and the second heat exchange tube 15 have flow channels.

[0067] In some embodiments of the present invention, the first tube 11 and the second tube 12 refer to cylindrical tubes for refrigerant to flow inside. It should be noted that the shapes of the first tube 11 and the second tube 12 are not limited to cylindrical shapes, and can also be tubes with a D-shaped cross-section, or rectangular tubes, etc. The first heat exchange tube 14 has a first channel, the second heat exchange tube 15 has a second channel, and the cross-sections of the channels of the first heat exchange tube 14 and the second heat exchange tube 15 can be circular or elliptical, and the first channel and the second channel are for refrigerant to flow.

[0068] In some embodiments, as Figure 8 and Figure 9 shown, the first heat exchange tube 14 includes a first end and a second end in the length direction (the first end and the second end are Figure 8 the left end and the right end of the first heat exchange tube 14 of the heat exchanger shown in the drawings). The first tube 11 is connected to the first end of the first heat exchange tube 14. The second end of the first heat exchange tube 14 includes a flared portion. The second heat exchange tube 15 includes a third end and a fourth end in the length direction (the third end and the fourth end are Figure 8 the left end and the right end of the second heat exchange tube 15 of the heat exchanger shown in the drawings). The third end of the second heat exchange tube 15 includes a reduced diameter portion, and the reduced diameter portion cooperates with the flared portion. The third end and the fourth end are sleeved and connected. It should be noted that according to the size of the heat exchange tube specifications, it can be determined whether the third end and the fourth end use a flared portion, a reduced diameter portion, or a flat end portion. Here, the flared portion means that the inner diameter of this part of the tube is larger than the tube diameter of other sections of the heat exchange tube, the reduced diameter portion means that the outer diameter of this part is smaller than the tube diameter of other parts of the tube, and the flat end portion means that the inner diameter of this part of the tube is equal to the tube diameter of other sections of the tube. The fourth end of the second heat exchange tube 15 is connected to the second tube 12. By setting different shapes at the tube ends, it is beneficial to process and assemble a variety of different size tube types, and free combination ratios can be achieved according to performance requirements.

[0069] Assembling two relatively short heat exchange tubes into a relatively long heat exchange tube is beneficial to reducing the bending deformation of the heat exchange tube. Since the large-size heat exchanger is assembled by two relatively small-size heat exchange cores, the number of heat exchange tubes passing through the fins is reduced, so it is also beneficial to reducing the deformation of the fins.

[0070] In some embodiments, such as Figure 8 and Figure 9 shown, the flow cross-sectional area of the channel of the first heat exchange tube 14 is larger than that of the second heat exchange tube 15. When the heat exchanger is in the condenser condition in the system, the refrigerant flows into the first tube 11 in a gaseous state, and then is delivered to some or all of the first heat exchange tubes 14, and then flows out of the first heat exchange tubes 14 and into the second heat exchange tubes 15. In this process, due to the energy exchange between the gaseous refrigerant and the air, heat is released into the air. Therefore, the gaseous refrigerant will gradually condense into a gas-liquid two-phase state as the temperature decreases. When the refrigerant changes from a gaseous state to a liquid state, the required space decreases. Therefore, reducing the internal volume of the second heat exchange tube 15 is beneficial to increasing the flow rate of the liquid refrigerant and improving the heat exchange efficiency of the heat exchanger. On the other hand, it is also beneficial to reduce the cost of the heat exchanger.

[0071] In some embodiments, the flow cross-sectional area of the first channel is S1, and the flow cross-sectional area of the second channel is S2. The ratio of S1 to S2 is greater than 1 and less than 3. When the ratio is less than 1, the total flow cross-sectional area of the first heat exchange tube 14 is smaller than that of the second heat exchange tube 15, resulting in too little gaseous refrigerant flowing into the first heat exchange tube 14. The gaseous refrigerant will accumulate in the first tube 11, reducing the heat exchange performance of the heat exchanger. On the other hand, when the ratio of S1 to S2 is greater than 3, the total flow cross-sectional area of the first heat exchange tube 14 is larger than that of the second heat exchange tube 15, resulting in too much refrigerant and waste. Therefore, it is reasonable for the ratio of S1 to S2 to be greater than 1 and less than 3.

[0072] In some embodiments, such as Figure 10 and Figure 11 shown, the heat exchanger further includes a third member 17. The third member 17 includes a fifth end and a sixth end (the fifth end and the sixth end of the third member 17 are, for example, Figure 10 shown as the left end of the third member 17 and the right end of the third member 17). One end of the first heat exchange tube 14 is connected to the third member 17, and the other end of the second heat exchange tube 15 is connected to the third member 17. Connecting through the third member 17 can improve the connection strength of the heat exchanger 1. It should be noted that, in order to achieve the convenience of free processing and installation, the two ends of the third member 17 can be provided with flared portions, constricted portions, and flat portions to achieve free matching of different pipe diameters, thereby facilitating the adjustment of the internal volumes of the first heat exchange tube 14 and the second heat exchange tube 15 and improving the heat exchange performance of the heat exchanger 1.

[0073] In some embodiments, such as Figure 12 and Figure 13As shown, one end of the first heat exchange tube 14 is connected to the first tube 11, the other end of the first heat exchange tube 14 is connected to one end of the second heat exchange tube 15, and the other end of the second heat exchange tube 15 is connected to the second tube 12. Specifically, the other end of the first heat exchange tube 14 has internal threads or external threads, one end of the second heat exchange tube 15 has external threads or internal threads, and the first heat exchange tube 14 and the second heat exchange tube 15 are threadedly connected, which is beneficial to improving the connection strength at the connection of the first heat exchange tube 14 and the second heat exchange tube 15 of the heat exchanger 1, and thus beneficial to improving the reliability of the heat exchanger 1.

[0074] In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0075] In the present invention, unless otherwise clearly defined and limited, terms such as "installed", "connected", "connected", "fixed", etc. should be understood in a broad sense. For example, it can be directly connected or indirectly connected, and can also be detachably directly or indirectly connected, or integrated; it can be mechanically directly or indirectly connected, and can also be electrically directly or indirectly connected or communicable with each other; it can be directly connected, or can be indirectly connected through an intermediate medium, and can be the communication inside two components or the interaction relationship between two components, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0076] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" can explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0077] In the present invention, unless otherwise clearly specified and defined, a first feature being "on" or "under" a second feature may mean that the first and second features are in direct contact, or the first and second features are indirectly in contact via an intermediate medium. Further, a first feature being "above", "over" or "on top of" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the horizontal height of the first feature is higher than that of the second feature. A first feature being "under", "below" or "beneath" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the horizontal height of the first feature is less than that of the second feature.

[0078] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those of ordinary skill in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A processing method for a heat exchanger, characterized in that, it includes the following steps: Providing a plurality of fins, the fins include a plurality of mounting portions arranged at intervals along their length direction, the plurality of fins are arranged at intervals in the thickness direction of the fins, one fin group includes a plurality of the fins, the fin group is two or more, the thickness direction of the fins is the first direction, defining the length direction of the fins as the second direction, the first direction is perpendicular to the second direction, limiting the fin group in the first direction and limiting the fin group in the second direction; Providing a plurality of first heat exchange tubes and a plurality of second heat exchange tubes, the first heat exchange tube has a lumen, the second heat exchange tube has a lumen, one fin group includes a plurality of the mounting portions in the first direction, the first heat exchange tube is inserted into the plurality of mounting portions parallel to the first direction, repeating the step of inserting the first heat exchange tube into the plurality of mounting portions parallel to the first direction until the assembly of the plurality of first heat exchange tubes and one fin group is completed to obtain a first heat exchange core; another fin group includes a plurality of the mounting portions in the first direction, the second heat exchange tube is inserted into the plurality of mounting portions of the other fin group parallel to the first direction, repeating the step of inserting the second heat exchange tube into the plurality of mounting portions of the other fin group parallel to the first direction until the assembly of the plurality of second heat exchange tubes and the other fin group is completed to obtain a second heat exchange core; Placing the first heat exchange core at a first preset position and placing the second heat exchange core at a second preset position, moving or rotating at least one of the first heat exchange core and the second heat exchange core so that the first heat exchange tube and the second heat exchange tube are directly or indirectly connected.

2. The processing method according to claim 1, characterized in that, One of the first heat exchange tube and the second heat exchange tube includes a flared portion, the flared portion includes an inner cavity, the other heat exchange tube includes a reduced diameter portion, and before the step of moving the first heat exchange core and / or the second heat exchange core, the following steps are further included: placing solder on at least a part of the outer peripheral wall of the reduced diameter portion so that the flared portion and the reduced diameter portion can be welded and fixed.

3. The processing method according to claim 2, characterized in that, The first heat exchange tube includes the reduced diameter portion and a first straight portion, the first straight portion includes a first cavity, the second heat exchange tube includes the flared portion and a second straight portion, the second straight portion includes a second cavity, limiting the first heat exchange core in the first direction and limiting the first heat exchange core in the second direction, moving the second heat exchange core a preset distance L in the length direction of the second heat exchange tube so that a part of the first straight portion is located in the inner cavity of the flared portion and a part of the reduced diameter portion is located in the second cavity of the second heat exchange tube.

4. The processing method according to claim 1, characterized in that, It further includes the following steps: Provide a third piece, where the third piece has a third cavity. Place the third piece at a third preset position, move the first heat exchange core and / or the second heat exchange core, and apply an external force to the first heat exchange core and / or apply an external force to the second heat exchange core, so that the other end of the first heat exchange tube is fixedly connected to the third piece, and the other end of the second heat exchange tube is fixedly connected to the third piece; or, provide a third piece, where the third piece has a third cavity. Place the third piece at a third preset position, move the third piece, and apply an external force to the third piece, so that the first heat exchange tube is fixedly connected to the third piece. Move the second heat exchange core, and apply an external force to the second heat exchange core, so that the second heat exchange tube is fixedly connected to the third piece.

5. The processing method according to claim 4, characterized in that, it further comprises the following steps: The third piece has a thread. Connect the other end of the first heat exchange tube to one end of the third piece, and rotate the third piece counterclockwise or clockwise.

6. The processing method according to claim 1, characterized in that, it further comprises the following steps: While moving the first heat exchange core and / or the second core, rotate the third piece counterclockwise or clockwise, so that the first heat exchange core approaches the second heat exchange core, so that one end of the third piece is connected to the other end of the first heat exchange tube, and so that the other end of the third piece is connected to the other end of the second heat exchange tube.

7. A heat exchanger, characterized in that, comprises: A first tube and a second tube; Fins, the fins have a plurality of mounting portions spaced apart in the fin length direction. There are two or more fins, and the two or more fins are spaced apart in a first direction perpendicular to the length direction of the first tube; Heat exchange tubes, part of the heat exchange tubes are located in the mounting portions. There are two or more heat exchange tubes, and the two or more heat exchange tubes are arranged in the length direction of the first tube. The heat exchange tubes include a first heat exchange tube and a second heat exchange tube. The first heat exchange tube and the second heat exchange tube are directly connected or indirectly connected. The first heat exchange tube is directly connected or indirectly connected to the first tube. The second heat exchange tube is directly connected or indirectly connected to the first tube. The first heat exchange tube includes a first channel, and the second heat exchange tube includes a second channel. The first channel and the second channel communicate.

8. The heat exchanger according to claim 7, characterized in that, The flow cross-sectional area of the first channel is larger than the flow cross-sectional area of the second channel.

9. The heat exchanger according to claim 7 or 8, characterized in that, The flow cross-sectional area of the first channel is S1, the flow cross-sectional area of the second channel is S2, and the ratio of S1 to S2 is greater than 1 and less than 3.

10. The heat exchanger according to claim 7 or 8, characterized in that, The first heat exchange tube includes a first end portion and a second end portion, the second heat exchange tube includes a third end portion and a fourth end portion, the first end portion of the first heat exchange tube is connected to the first tube, the fourth end portion of the second heat exchange tube is connected to the second tube, and at least one of the third end portion and the fourth end portion includes a flared portion; alternatively, at least one of the third end portion and the fourth end portion includes a necked-down portion; alternatively, at least one of the third end portion and the fourth end portion includes a flat end portion.

11. The heat exchanger according to claim 7 or 8, characterized in that: the heat exchanger includes a third member, there are a plurality of the third members, the third member includes a fifth end portion and a sixth end portion, the fifth end portion of the third member is connected to the first heat exchange tube, and the sixth end portion of the third member is connected to the second heat exchange tube.

12. The heat exchanger according to claim 11, characterized in that: at least one of the fifth end portion and the sixth end portion includes a flared portion, or at least one of the fifth end portion and the sixth end portion includes a necked-down portion; or at least one of the fifth end portion and the sixth end portion includes a flat end portion.

Images