Heat exchanger assembly apparatus and method of use

Abstract

This invention discloses a heat exchanger assembly device and its usage method for installing flat tubes and fins. The heat exchanger assembly device includes an assembly platform, a flat tube assembly structure, a manifold assembly fitting, and fasteners. During assembly, the flat tubes are first placed stably along the length of the first groove to form the lower layer of flat tubes. Then, flat tubes are placed along the same length of the first groove, ensuring the newly placed flat tubes are precisely positioned above the lower layer to form the upper layer. For assembling a single-row heat exchanger, only the comb plate adapted for the single-row heat exchanger needs to be replaced. After forming a single layer of flat tubes, fins are placed directly between adjacent single-layer flat tubes, and the subsequent fixing and assembly process is the same. This assembly method eliminates the need to replace the heat exchanger assembly device, flexibly enabling the installation of both double-row and single-row heat exchanger tubes, effectively improving the applicability and efficiency of the heat exchanger assembly device, and reducing assembly costs.

Description

Technical Field

[0001] This invention relates to the field of heat exchanger technology, and in particular to a heat exchanger assembly device and its usage method. Background Technology

[0002] In the traditional assembly and production process of heat exchanger cores, the industry generally adopts the tooling frame positioning method to achieve geometric alignment and assembly positioning between flat tubes and fins. This traditional process relies on manual labor and special tooling to complete the assembly: the operator first places the flat tube in the lower positioning groove for preliminary positioning, then stacks the fins in sequence, using the positioning grooves on the comb plate to constrain the height deviation between the fins and flat tubes during the stacking process, and then continues to place the upper layer of flat tubes and fins. After the core is stacked, the axial pressing of the two end manifolds is finally performed by a servo hydraulic press to achieve the insertion and mating of the flat tubes and manifolds.

[0003] However, this traditional assembly method has many inherent defects in actual production, seriously affecting the assembly quality and performance of the heat exchanger core. Using a servo hydraulic press to directly press the manifold can easily lead to inconsistent insertion depths of the flat tubes into the manifold, uneven distribution of pressing force, and thus significantly increase the risk of leakage during core operation. Simultaneously, some flat tubes may undergo plastic deformation during pressing due to excessive localized stress, damaging their original structural morphology and directly reducing the overall heat exchanger efficiency and flow performance. During the layer-by-layer placement of flat tubes and fins, manual operation and external disturbances can easily cause assembly deviations: parallelism between fins and between flat tubes is difficult to guarantee, and perpendicularity between flat tubes, fin assemblies, and the manifold is also prone to exceeding tolerances, resulting in overall core structural skewing and flow channel misalignment. Furthermore, traditional tooling cannot stably control the spacing between upper and lower layers of flat tubes, resulting in poor interlayer dimensional consistency and directly affecting the uniformity of heat exchange in the core. Meanwhile, this tooling frame positioning method has poor versatility. When producing single-layer heat exchangers and double-layer heat exchangers, different tooling needs to be designed and replaced separately, which not only increases tooling costs and changeover time, but also reduces the flexibility and adaptability of the production line and production efficiency.

[0004] Therefore, there is an urgent need to propose a heat exchanger assembly device and usage method to solve the above problems. Summary of the Invention

[0005] The purpose of this invention is to provide a heat exchanger assembly device that enables the installation of double-row heat exchanger tubes and single-row heat exchanger tubes without changing the tooling, thereby improving the assembly efficiency of the heat exchanger.

[0006] To achieve this objective, the present invention adopts the following technical solution: A heat exchanger assembly device for installing flat tubes and fins, characterized in that the heat exchanger assembly device comprises: Assembly table, with a flat tube receiving plate on the assembly table; The flat tube assembly structure includes two comb plates. A plurality of spaced first grooves are provided on one side of the comb plates. The openings of the first grooves are opposite to each other, and the length direction of the first grooves is perpendicular to the assembly table. The two comb plates are symmetrically distributed on both sides of the flat tube receiving plate along the first direction, and the two comb plates can reciprocate along a direction perpendicular to the surface of the assembly table. Two fixing members are symmetrically distributed on both sides of the comb plate along the second direction, and the two fixing members move back and forth towards or away from each other along the second direction. Two manifold assemblies are arranged opposite each other and symmetrically distributed on both sides of the two comb plates along the first direction. The two manifold assemblies move back and forth towards or away from each other along the first direction. The manifold assemblies are used to place manifolds. The first direction and the second direction are perpendicular to each other and parallel to the surface of the assembly table.

[0007] Preferably, the flat tube assembly structure also includes multiple flat tube positioning components. The plane connecting each pair of adjacent first groove sidewalls is designated as a connecting surface. One end of the flat tube positioning component is fixed to the surface of the connecting surface, and the multiple flat tube positioning components are located on the same straight line along the second direction.

[0008] Preferably, the length of the plurality of first grooves gradually decreases from one side of the comb plate to the other side along the second direction.

[0009] Preferably, the heat exchanger assembly also includes multiple fin positioning components, which are respectively disposed at both ends of the fins, with each pair of fin positioning components corresponding to one fin.

[0010] Preferably, the assembly table has through holes, and the two ends of the flat tube receiving plate are fixedly connected to the side walls of the through holes. The two comb plates are located above the through holes and move back and forth along the depth direction of the through holes.

[0011] Preferably, the heat exchanger assembly device also includes a drive mechanism, the output end of which is connected to the comb plate and is used to drive the comb plate to reciprocate in a direction perpendicular to the assembly table.

[0012] Preferably, the manifold fitting has a second groove, the length direction of which is parallel to the first direction, and the openings of the two second grooves are arranged opposite to each other. The second groove is used to place the manifold.

[0013] Preferably, the heat exchanger assembly device further includes a clamping structure, which includes two clamping members arranged opposite to each other. The two clamping members are symmetrically distributed on both sides of the manifold assembly along a first direction, and the clamping members can move simultaneously towards or away from each other along the first direction.

[0014] Preferably, the heat exchanger assembly device also includes two guide rails, which are respectively fitted onto the synchronous tensioning wheel. Two clamping members correspond to and are fixedly connected to the two guide rails one by one. The fixed end of the synchronous tensioning wheel is fixedly connected to the assembly table.

[0015] Another objective of this invention is to provide a method for using a heat exchanger assembly device, which enables the installation of double-row heat exchanger tubes and single-row heat exchanger tubes without changing the tooling, thereby improving the assembly efficiency of the heat exchanger.

[0016] To achieve this objective, the present invention adopts the following technical solution: The method of using the heat exchanger assembly device, as described above, includes the following steps: S1, a flat tube is placed along the length of the first groove to form a lower flat tube, and another flat tube is placed along the length of the first groove above the lower flat tube to form an upper flat tube. S2, fins are placed between two adjacent flat tubes in the upper layer; S3 controls the two fixing parts to move relative to each other in the second direction and to contact the outermost flat tube, so that the flat tube and the fin are clamped together. S4 controls the comb plate to move toward the assembly table; S5 controls the two manifold assemblies to move relative to each other in the first direction, so that the flat tube is inserted into the manifold.

[0017] The beneficial effects of this invention are: This invention provides a heat exchanger assembly device for installing flat tubes and fins. The device includes an assembly platform, a flat tube assembly structure, manifold fittings, and fasteners. During assembly, the flat tubes are first placed smoothly along the length of a first groove, ensuring a tight fit and accurate positioning between the flat tubes and the sidewall of the first groove, forming the lower flat tube. Then, flat tubes are placed along the same length of the first groove, precisely positioned above the lower flat tube and aligned with the baseline, forming the upper flat tube. Fins are precisely embedded between adjacent flat tubes, ensuring a tight fit between the fins and the flat tubes, guaranteeing subsequent heat exchange efficiency. Next, two fasteners are moved towards each other along a second direction until they are in close contact with the outermost flat tube. Clamping force is used to press all flat tubes and fins together and securely fix them, preventing displacement during assembly. Finally, a comb plate is moved towards the assembly platform and smoothly withdrawn, preventing contact with the fixed flat tubes and fins and ensuring assembly accuracy. Finally, the two manifold assemblies are driven to move relative to each other along the first direction, precisely inserting both ends of the flat tubes into the corresponding interfaces of the manifolds, completing the overall assembly of the double-row heat exchanger. For assembling a single-row heat exchanger, simply replace the comb plate with one suitable for the single-row heat exchanger. After forming a single layer of flat tubes, place fins directly between adjacent single-layer flat tubes, and then follow the same fixing and assembly process. This assembly method eliminates the need to replace the heat exchanger assembly device, flexibly enabling the installation of both double-row and single-row heat exchangers, effectively improving the applicability and efficiency of the heat exchanger assembly device, and reducing assembly costs.

[0018] The present invention also provides a method for using the heat exchanger assembly device. By using the heat exchanger assembly device described above, the installation of double-row and single-row heat exchanger tubes can be flexibly realized without replacing the heat exchanger assembly device, which effectively improves the applicability and efficiency of the heat exchanger assembly device and reduces the assembly cost. Attached Figure Description

[0019] Figure 1 This is a top view of the heat exchanger assembly device provided in this embodiment; Figure 2 This is a front view of the heat exchanger assembly device provided in this embodiment.

[0020] In the picture: 10. Assembly table; 11. Flat tube receiving plate; 12. Through hole; 20. Comb plate; 30. Fixing component; 40. Manifold assembly; 50. Clamping component; 60. Guide rail; 71. Transmission rod; 72. Transmission plate. Detailed Implementation

[0021] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, and not all of the structures.

[0022] In the description of this invention, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0023] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0024] In the description of this embodiment, the terms "upper," "lower," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention. In addition, the terms "first" and "second" are used only for distinction in description and have no special meaning.

[0025] This embodiment provides a heat exchanger assembly device that enables the installation of double-row heat exchanger tubes and single-row heat exchanger tubes without changing the tooling, thereby improving the assembly efficiency of the heat exchanger.

[0026] Specifically, such as Figures 1 to 2 As shown, a heat exchanger assembly device is used for the installation of flat tubes and fins. The heat exchanger assembly device includes an assembly platform 10, a flat tube assembly structure, two manifold assembly fittings 40, and two fasteners 30.

[0027] The assembly table 10 is equipped with a flat tube receiving plate 11, which is used to receive and position the inserted flat tubes, so that each flat tube maintains a stable posture during the assembly process and ensures that the end face or side of all flat tubes is in the same reference plane. This effectively eliminates the height difference and misalignment deviation between flat tubes, thereby providing a reliable positioning basis for the subsequent precise docking, assembly and welding processes of the manifold, and improving the overall assembly accuracy and structural consistency.

[0028] The flat tube assembly structure includes two comb plates 20. Multiple spaced first grooves are provided on one side of each comb plate 20. The openings of the first grooves are opposite to each other, and the length direction of the first grooves is perpendicular to the assembly table 10. The two comb plates 20 are aligned along a first direction (…). Figure 1 The two comb plates 20 (shown in the X direction) are symmetrically distributed on both sides of the flat tube receiving plate 11, and the two comb plates 20 can reciprocate in a direction perpendicular to the surface of the assembly table 10. The flat tube can be placed into the two first grooves with opposite openings. The distance between the bottom walls of the oppositely arranged first grooves is slightly greater than the overall length of the flat tube. During assembly, it can provide sufficient assembly clearance for the flat tube, reduce the difficulty of placing the flat tube, realize convenient and smooth placement, and ensure reliable positioning.

[0029] The two fasteners 30 are along the second direction ( Figure 1 The two fasteners 30 are symmetrically distributed on both sides of the comb plate 20 in the Y direction shown in the figure, and the two fasteners 30 move back and forth in opposite directions along the second direction. After the lower and upper flat tubes are placed in the preset positions, the two fasteners 30 are used to clamp and position the stacked flat tube assembly, so as to achieve the initial fixation and posture maintenance of the flat tubes on the flat tube receiving plate 11. This can not only ensure the relative position stability between the flat tubes, but also create conditions for the smooth removal of the comb plate 20, and at the same time provide a stable and reliable assembly foundation for the precise docking and assembly of the subsequent collection tubes.

[0030] Two manifold fittings 40 are arranged opposite each other and symmetrically distributed on both sides of the two comb plates 20 along the first direction. The two manifold fittings 40 move back and forth towards or away from each other along the first direction. The manifold fittings 40 are used to hold the manifold. By controlling the relative movement of the two manifold fittings 40 towards each other along the first direction, the ends of the manifold and the flat tube gradually approach and precisely align. The assembly fit formed by the opposing movement achieves the positioning and assembly of the flat tube and the manifold, completing their assembly connection. It should be noted that, as... Figure 1 As shown, the first direction and the second direction are perpendicular to each other and both parallel to the surface of the assembly table 10.

[0031] During assembly, the flat tubes are first placed smoothly along the length of the first groove, ensuring a tight fit and accurate positioning between the flat tubes and the sidewall of the first groove, forming the lower flat tube. Then, flat tubes are placed along the same length of the first groove, precisely positioned above the lower flat tube and aligned with the baseline, forming the upper flat tube. Fins are precisely embedded between adjacent flat tubes, ensuring a tight fit between the fins and the flat tubes, guaranteeing efficient heat exchange. Next, the two fixing components 30 are moved relative to each other along the second direction until they are in close contact with the outermost flat tube. Clamping force is used to press all flat tubes and fins together and secure them firmly, preventing displacement during assembly. Then, the comb plate 20 is moved towards the assembly table 10 and smoothly withdrawn, preventing contact with the fixed flat tubes and fins and ensuring assembly accuracy. Finally, the two manifold assembly components 40 are driven to move relative to each other along the first direction, precisely inserting the two ends of the flat tubes into the corresponding interfaces of the manifold, completing the overall assembly of the double-row heat exchanger. If a single-row heat exchanger is required, simply replace the comb plate 20 with one suitable for the single-row heat exchanger. After forming a single layer of flat tubes, place fins directly between adjacent single-layer flat tubes, and then proceed with the same fixing and assembly process. This assembly method does not require replacing other heat exchanger assembly devices and can flexibly realize the installation of both double-row and single-row heat exchanger tubes, effectively improving the applicability and efficiency of the heat exchanger assembly device and reducing assembly costs. It should be noted that double-row heat exchanger tubes refer to double-layer flat tubes, including an upper and lower layer, while single-row heat exchanger tubes refer to a single layer of flat tubes. This clarification is provided to avoid misunderstanding.

[0032] Furthermore, the flat tube assembly structure also includes multiple flat tube positioning components. The plane connecting the sidewalls of every two adjacent first grooves is designated as a connecting surface. One end of each flat tube positioning component is fixed to the surface of the connecting surface, and the multiple flat tube positioning components are aligned along the same straight line in the second direction. After the lower flat tube is installed, the flat tube positioning components extend from a preset position to laterally limit and correct the posture of the assembled lower flat tube, achieving precise positioning of the lower flat tube and preventing it from shifting or shaking during subsequent assembly. Simultaneously, the height or extension amount of the flat tube positioning components reliably controls the distance between the lower flat tube and the subsequently installed upper flat tube, ensuring uniform spacing and stable interlayer distance between the upper and lower flat tubes. This provides assurance for the placement of the upper flat tube, fin assembly, and the overall dimensional accuracy of the heat exchanger structure. It should be noted that the number of flat tube positioning components can be adjusted according to actual conditions; in this embodiment, no specific limitation is imposed.

[0033] Optionally, along the second direction from one side of the comb plate 20 to the other side, the length of the multiple first grooves gradually decreases. The stepped first grooves can adapt to the assembly requirements of flat tubes of different lengths. This, combined with the clamping action of the fixing member 30 along the second direction, improves the reliability of clamping and positioning. This facilitates the smooth removal of the comb plate 20 and ensures precise docking between the manifold and the flat tube, effectively improving assembly stability and versatility, and enhancing the device's adaptability to heat exchangers of different specifications. In this embodiment, the grooves point from the side of the comb plate 20 facing the operator to the side of the comb plate 20 away from the operator. In other embodiments, the grooves point from the side of the comb plate 20 away from the operator to the side of the comb plate 20 facing the operator.

[0034] Optionally, the heat exchanger assembly device also includes multiple fin positioning components, which are respectively disposed at both ends of the fins, with each pair of fin positioning components corresponding to one fin. During the assembly process, the fin positioning components precisely limit and constrain the posture of the fins and flat tubes, ensuring stable and uniform parallelism between adjacent fins and between upper and lower layers of flat tubes. At the same time, it strictly ensures the perpendicularity of the fins, flat tubes, and manifold as a whole is consistent, effectively avoiding problems such as skewness, misalignment, or uneven spacing during assembly, and significantly improving the overall structural accuracy and assembly consistency of the heat exchanger.

[0035] Optionally, the assembly table 10 has through holes 12. The two ends of the flat tube receiving plate 11 are fixedly connected to the side walls of the through holes 12. Two comb plates 20 are located above the through holes 12, and the comb plates 20 reciprocate along the depth direction of the through holes 12. When the comb plates 20 move toward the assembly table 10 to avoid interference, they can pass through the pre-set through holes 12 on the assembly table 10, thereby extending the movement stroke and avoidance path of the comb plates 20. This ensures that the comb plates 20 can be completely space-displaced from the assembled flat tube and fin assembly and removed from the interference area, thereby effectively avoiding positional interference of the comb plates 20 during the installation of the manifold, ensuring smooth docking and assembly of the manifold and the flat tube ends, and providing a stable and reliable assembly space for subsequent processes.

[0036] Furthermore, the heat exchanger assembly device also includes a drive mechanism. The output end of the drive mechanism is connected to the comb plate 20, which drives the comb plate 20 to reciprocate in a direction perpendicular to the assembly table 10. The comb plate 20 is directly driven by a dedicated drive mechanism, which can stably and reliably realize the lifting and lowering movement of the comb plate 20 in a direction perpendicular to the assembly table 10, ensuring accurate movement direction and smooth operation, effectively improving the avoidance and resetting efficiency of the comb plate 20, and providing stable power support for the flat tube positioning, assembly, and removal processes. It should be noted that the drive mechanism can be a motor, etc., and no specific limitation is made in this embodiment. It should also be noted that the drive of the manifold assembly 40 and the clamping part 50 described below are all through the drive mechanism. They can use the same drive mechanism as the comb plate 20 or different drive mechanisms. This is to avoid misunderstanding.

[0037] Furthermore, the heat exchanger assembly device also includes a transmission mechanism, which includes a transmission plate 72 and two transmission rods 71. The two transmission rods 71 ​​are fixedly connected to the same side of the transmission plate 72, and the other side of the transmission plate 72 is connected to two comb plates 20, forming a unified transmission structure. By moving the same transmission plate 72 up and down, the two comb plates 20 can be driven to move up and down synchronously, ensuring that the comb plates 20 on both sides move in the same direction and have the same stroke. This effectively avoids asynchronous movement, skewness, or jamming, and significantly improves the stability, reliability, and positioning accuracy of the comb plate 20 movement, providing a stable guarantee for the positioning, support, and avoidance processes of the flat tube.

[0038] Optionally, the manifold assembly 40 is provided with a second groove, the length direction of which is parallel to the first direction. The openings of the two second grooves are arranged opposite to each other, and the second groove is used to place the manifold. The second groove reliably fixes the position of the manifold on the heat exchanger assembly device, which can accurately limit the movement trajectory and path of the manifold, preventing offset, shaking or posture deviation during assembly. This significantly improves the coaxiality, alignment accuracy and assembly stability of the manifold and flat tube docking assembly, and effectively improves the overall assembly efficiency.

[0039] Furthermore, the heat exchanger assembly device also includes a clamping structure, which comprises two opposing clamping members 50. The two clamping members 50 are symmetrically distributed on both sides of the manifold assembly 40 along a first direction, and the clamping members 50 can move simultaneously towards or away from each other along the first direction. By moving the two clamping members 50 towards each other along the first direction, the manifold assembly 40 is uniformly clamped, ensuring that the manifold assembly 40 maintains a stable posture and uniform reference during assembly. This ensures precise alignment between the manifold interface and the flat tube end, guarantees consistent insertion depth of each flat tube into the manifold, and effectively improves assembly accuracy and product consistency.

[0040] Furthermore, the heat exchanger assembly device also includes two guide rails 60, which are respectively fitted onto two synchronous tensioning wheels. Two clamping members 50 correspond one-to-one with the two guide rails 60 and are fixedly connected. The fixed ends of the synchronous tensioning wheels are fixedly connected to the assembly table 10. The rotation of the synchronous tensioning wheels drives the guide rails 60 to push the clamping members 50 on both sides to move synchronously relative to each other, ensuring that the two clamping members 50 have the same speed and the same stroke during the movement, which greatly improves the synchronicity and alignment accuracy of the clamping action, thereby ensuring the stability of the posture of the manifold assembly 40 and the uniform force, effectively improving the consistency of the insertion depth of each flat tube into the manifold, and ensuring the stable and reliable quality of the heat exchanger assembly.

[0041] This embodiment also provides a method for using a heat exchanger assembly device, which enables the installation of double-row heat exchanger tubes and single-row heat exchanger tubes without changing the tooling, thereby improving the assembly efficiency of the heat exchanger.

[0042] Specifically, the method of using the heat exchanger assembly device, employing the heat exchanger assembly device as described above, includes the following steps: S1, place the comb plates 20 on both sides in a suitable position according to the length of the flat tube, so that the distance between the bottom walls of the two first grooves is slightly greater than the length of the flat tube. Place the flat tube along the length of the first groove to form the lower flat tube. After the lower flat tube is placed, the flat tube positioning piece extends out. Adjust the distance between the upper flat tube to be placed later and the already formed lower flat tube appropriately. Continue to place the flat tube along the length of the first groove, above the lower flat tube, to form the upper flat tube.

[0043] S2, fins are placed between two adjacent flat tubes in the upper layer to significantly increase the heat exchange area of ​​the heat exchanger, enhance the heat transfer between the fluid and the flat tubes, and improve the heat exchange efficiency. At the same time, the fins support and position the flat tubes, ensuring that the spacing between the flat tubes is uniform and the posture is stable, providing a structural basis for subsequent clamping and assembly of the manifold. Then, fin positioning components are placed between the flat tubes and the fins to strictly ensure that the perpendicularity between the fins, the flat tube as a whole and the manifold is consistent, effectively avoiding problems such as skewing, misalignment or uneven spacing during the assembly process.

[0044] S3, through the drive mechanism, controls the two fixing parts 30 to move relative to each other in the second direction and contact the outermost flat tube. The clamping force makes the flat tube and fin press against each other, eliminating the assembly gap, realizing the reliable positioning and stable posture of the flat tube and fin on the flat tube receiving plate 11, and providing a solid assembly foundation for subsequent processes.

[0045] S4, control the comb plate 20 to move toward the assembly table 10, the comb plate 20 moves downward under control and extends into the through hole 12 of the assembly table 10 to complete the avoidance action, give up enough assembly space, and thus create good conditions for the precise docking and assembly of the manifold and the flat tube.

[0046] S5, place the manifolds into the second grooves respectively, control the two manifold assembly parts 40 to move relative to each other in the first direction, so that the flat tube is smoothly inserted into the manifold; then drive the clamping parts 50 on both sides to move synchronously relative to each other through the guide rail 60, and accurately push the manifold to the appropriate depth to match the flat tube, ensuring that the insertion depth is consistent, and finally complete the overall assembly of the heat exchanger.

[0047] If a single-row heat exchanger needs to be assembled, only the special comb plate 20 adapted for single-row heat exchangers needs to be replaced. After placing and positioning the single-layer flat tubes, the assembly process from steps 2 to 5 can be repeated. This assembly method does not require replacement or adjustment of the main structure or other components of the heat exchanger assembly device. By simply switching the comb plate 20, it can flexibly adapt to the assembly requirements of both double-row and single-row heat exchangers, greatly improving the versatility and applicability of the device, simplifying the changeover operation, improving the overall assembly efficiency, and reducing tooling investment and equipment modification costs, thereby lowering production and assembly costs.

[0048] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation of the present invention. Those skilled in the art will be able to make various obvious changes, readjustments, and substitutions without departing from the scope of protection of the present invention. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. A heat exchanger assembly device for installing flat tubes and fins, characterized in that, The heat exchanger assembly includes: Assembly table (10), wherein a flat tube receiving plate (11) is provided on the assembly table (10); The flat tube assembly structure includes two comb plates (20). A plurality of spaced first grooves are provided on one side of each comb plate (20). The openings of the first grooves are opposite to each other, and the length direction of the first grooves is perpendicular to the assembly table (10). The two comb plates (20) are symmetrically distributed on both sides of the flat tube receiving plate (11) along a first direction, and the two comb plates (20) can reciprocate along a direction perpendicular to the surface of the assembly table (10). Two fixing members (30) are symmetrically distributed on both sides of the comb plate (20) along the second direction, and the two fixing members (30) move back and forth towards or away from each other along the second direction; Two manifold fittings (40) are arranged opposite each other and symmetrically distributed on both sides of the two comb plates (20) along the first direction. The two manifold fittings (40) move back and forth towards or away from each other along the first direction. The manifold fittings (40) are used to place manifolds. The first direction and the second direction are perpendicular to each other and parallel to the surface of the assembly table (10).

2. The heat exchanger assembly device according to claim 1, characterized in that, The flat tube assembly structure also includes multiple flat tube positioning components. The plane connecting each pair of adjacent first groove sidewalls is designated as a connecting surface. One end of each flat tube positioning component is fixed to the surface of the connecting surface, and the multiple flat tube positioning components are located on the same straight line along the second direction.

3. The heat exchanger assembly device according to claim 1, characterized in that, Along the second direction from one side of the comb plate (20) to the other side of the comb plate (20), the length of the plurality of first grooves gradually decreases.

4. The heat exchanger assembly device according to claim 1, characterized in that, The heat exchanger assembly device also includes multiple fin positioning components, which are respectively disposed at both ends of the fin, with each pair of fin positioning components corresponding to one fin.

5. The heat exchanger assembly device according to claim 1, characterized in that, The assembly table (10) has a through hole (12). The two ends of the flat tube receiving plate (11) are fixedly connected to the side wall of the through hole (12). The two comb plates (20) are located above the through hole (12). The comb plates (20) move back and forth along the depth direction of the through hole (12).

6. The heat exchanger assembly device according to claim 5, characterized in that, The heat exchanger assembly device also includes a drive mechanism, the output end of which is connected to the comb plate (20) and is used to drive the comb plate (20) to reciprocate in a direction perpendicular to the assembly table (10).

7. The heat exchanger assembly device according to claim 1, characterized in that, The manifold assembly (40) is provided with a second groove, the length direction of the second groove is parallel to the first direction, and the openings of the two second grooves are arranged opposite to each other. The second groove is used to place the manifold.

8. The heat exchanger assembly device according to claim 7, characterized in that, The heat exchanger assembly device further includes a clamping structure, which includes two clamping members (50) arranged opposite to each other. The two clamping members (50) are symmetrically distributed on both sides of the manifold assembly (40) along the first direction, and the clamping members (50) can move towards or away from each other along the first direction at the same time.

9. The heat exchanger assembly device according to claim 8, characterized in that, The heat exchanger assembly device also includes two guide rails (60), which are respectively sleeved on two synchronous tensioning wheels. Two clamping members (50) correspond one-to-one with the two guide rails (60) and are fixedly connected. The fixed end of the synchronous tensioning wheel is fixedly connected to the assembly table (10).

10. A method of using the heat exchanger assembly device, comprising the heat exchanger assembly device as described in any one of claims 1-9, characterized in that, Includes the following steps: S1, the flat tube is placed along the length of the first groove to form a lower flat tube, and the flat tube is placed again along the length of the first groove, above the lower flat tube, to form an upper flat tube; S2, the fins are placed between two adjacent flat tubes of the upper flat tube; S3, control the two fixing members (30) to move relative to each other along the second direction and contact the outermost flat tube, so that the flat tube and the fin are clamped together; S4, control the two comb plates (20) to move toward the assembly table (10); S5, control the two manifold fittings (40) to move relative to each other along the first direction, so that the flat tube is inserted into the manifold.

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