Heat dissipation mainboard and flat tube laser welding structure

Abstract

The utility model discloses a heat dissipation main board and flat tube laser welding structure which comprises two main boards, heat dissipation flat tubes, a supporting bottom plate, a first vertical plate and a supporting assembly, the two main boards are arranged in parallel, two rows of welding openings are formed in the main boards, and the multiple heat dissipation flat tubes are arranged between the two main boards in parallel and are connected with the first vertical plate. The two ends of the multiple heat dissipation flat pipes correspond to and are inserted into the multiple welding openings in the main plate in a one-to-one mode, the two first vertical plates are vertically arranged on the top face of the supporting bottom plate in parallel, the supporting assembly comprises a supporting insertion block, a guide rod and a moving block, the guide rod is connected between the two first vertical plates, and the moving block is arranged on the guide rod in a sliding mode. The supporting insertion block is arranged on one side of the moving block, the main plate is arranged on one side of the supporting insertion block, and a driving piece used for driving the supporting insertion block to move in the direction close to the main plate is arranged on the moving block. The device has the effect of improving the production and processing quality of the radiator.

Description

Technical Field

[0001] The present application relates to the technical field of radiator production, and in particular to a laser welding structure of a heat dissipation mainboard and a flat tube. Background Art

[0002] Radiators are essential components of hot water heating systems. Hot water cools within them and then supplies heat to the interior, achieving the desired heating effect. Radiators account for a significant portion of a heating system's metal consumption and cost. Therefore, the correct selection of a radiator is crucial to both the system's economic performance and operational performance.

[0003] Currently, a common radiator structure consists of a mainboard for connection to external structures and a heat pipe connected to the mainboard. The heat pipe is filled with a heat transfer medium for heat exchange. During radiator production, the heat pipe needs to be welded to the mainboard, usually using brazing.

[0004] Regarding the aforementioned related technologies, the inventors believe that during the soldering process, the heat sinks may crack due to the difficulty in controlling the thermal stress during the brazing process. Furthermore, the heat sinks may shrink and deform in various locations due to the thermal stress during soldering, thus affecting the production quality of the heat sink. Utility Model Content

[0005] In order to improve the production and processing quality of the radiator, the present application provides a laser welding structure of a heat dissipation mainboard and a flat tube.

[0006] The present application provides a heat dissipation mainboard and flat tube laser welding structure using the following technical solutions:

[0007] A heat dissipation mainboard and flat tube laser welding structure, comprising a mainboard, heat dissipation flat tubes, a support base plate, a first vertical plate and a support assembly, wherein two mainboards are arranged in parallel, two rows of welding ports are opened on the mainboard, a plurality of heat dissipation flat tubes are arranged in parallel between the two mainboards, and the two ends of the plurality of heat dissipation flat tubes correspond to and are plugged into the plurality of welding ports on the mainboard one by one, two first vertical plates are arranged vertically and parallel on the top surface of the support base plate, and the support assembly comprises a support plug, a guide rod and a moving block, the guide rod is connected between the two first vertical plates, the moving block is slidably arranged on the guide rod, the support plug is arranged on one side of the moving block, the mainboard is arranged on one side of the support plug, and the moving block is provided with a driving member for driving the support plug to move toward the direction close to the mainboard.

[0008] By adopting the above technical solution, during the welding and installation of the radiator body, the ends of several heat dissipating flat tubes are inserted into the welding openings of the mainboard. The assembled mainboard and heat dissipating flat tubes are placed on the support base plate. The support plug is aligned with the end of one of the heat dissipating flat tubes. The driver is activated to drive the support plug into the corresponding heat dissipating flat tube, thereby reducing the possibility of shrinkage and deformation of the heat dissipating flat tube ends during the laser welding process. The interaction of the mainboard, heat dissipating flat tubes, support base plate, first riser, and support assembly achieves support during the welding process, thereby improving the production and processing quality of the radiator.

[0009] Optionally, two abutment rings are connected to the outer ring wall of the heat dissipation flat tube, the two abutment rings correspond to the two main boards one by one, and the abutment rings abut against the sides of the two main boards that are close to each other.

[0010] By adopting the above technical solution, after the end of the heat dissipation flat tube is inserted into the corresponding welding port on the mainboard, the abutment ring abuts against one side of the mainboard, ensuring that the insertion depth of each heat dissipation flat tube remains consistent.

[0011] Optionally, two groups of the support assembly are provided between the two first vertical plates, and the support assembly further includes a drive motor and a drive screw. The drive motor is connected to one of the first vertical plates, and the drive screw is rotatably provided between the two first vertical plates and is provided parallel to the guide rod. The drive screw is threadedly connected to the moving block, and the two support blocks in the two groups of the support assemblies correspond one-to-one to the heights of the two rows of welding ports on the main board.

[0012] By adopting the above technical solution, the heights of the support plugs of the two groups of support components are set to correspond to the heights of the two rows of welding ports on the mainboard, thereby achieving simultaneous support for the heat dissipation flat tubes in the two rows of welding ports, which helps to improve the welding efficiency of the device.

[0013] Optionally, an insertion chamfer is provided along the circumferential direction at one end of the support plug away from the moving block.

[0014] By adopting the above technical solution, the provision of the plug chamfer facilitates the insertion of the support plug into the end of the heat dissipation flat tube, while also reducing the possibility of damage to the end of the heat dissipation flat tube.

[0015] Optionally, a fixed clamping bar and a sliding clamping bar are arranged in parallel on the support base plate, the fixed clamping bar and the sliding clamping bar are arranged parallel to the guide rod, the sliding clamping bar is slidingly connected to the support base plate, and a driving member for driving the sliding clamping bar to approach or move away from the fixed clamping bar is provided on the support base plate.

[0016] By adopting the above technical solution, before welding, the mainboard is placed between the fixed clamping bar and the sliding clamping bar. The driving member drives the sliding clamping bar close to the fixed clamping bar and clamps the mainboard between the two, thereby achieving vertical fixation of the mainboard and facilitating subsequent installation.

[0017] Optionally, a supporting member is provided on the supporting base plate, and the supporting member includes a first supporting plate, a second supporting plate and a second vertical plate, two second vertical plates are vertically and parallelly provided on the top surface of the supporting base plate, the first supporting plate is provided on the top surface of the supporting base plate and is located between the two second vertical plates, the second supporting plate is horizontally provided between the two second vertical plates, and the second supporting plate is provided above the first supporting plate, and the top surface heights of the first supporting plate and the second supporting plate are set corresponding to the bottom surface heights of the two rows of the heat dissipation flat tubes.

[0018] By adopting the above technical solution, the first supporting plate supports the heat dissipation flat tubes in the lower row, and the second supporting plate supports the heat dissipation flat tubes in the upper row, so that the heat dissipation flat tubes always remain perpendicular to the motherboard during the welding process.

[0019] Optionally, a plurality of supporting grooves are provided on the top surfaces of the first supporting plate and the second supporting plate, and the plurality of supporting grooves are arranged in a one-to-one correspondence with the shapes and positions of the bottom surfaces of the plurality of heat dissipation flat tubes.

[0020] By adopting the above technical solution, the setting of the supporting groove realizes the limitation of the heat dissipation flat tubes, ensuring that the heat dissipation flat tubes always remain in a parallel state during the welding process, which helps to improve the processing quality of the radiator body.

[0021] Optionally, a plug-in plate is provided at both ends of the second support plate in the length direction, and a plug-in slot corresponding to the shape and position of the plug-in plate is opened on the second vertical plate. The plug-in plate is inserted into the corresponding plug-in slot, and the second vertical plate is detachably connected to the top surface of the support base plate.

[0022] By adopting the above technical solution, the setting of the plug-in board and the plug-in strip realizes the detachable connection between the second support plate and the second vertical plate, which facilitates the removal of the second vertical plate and the second support plate and the removal of the radiator body after completing the welding support of the main board on one side.

[0023] In summary, this application includes at least one of the following beneficial technical effects:

[0024] 1. The mutual cooperation of the mainboard, heat dissipation flat tubes, support base plate, first vertical plate and support assembly realizes the support for the welding process, which has the effect of improving the production and processing quality of the radiator;

[0025] 2. The setting of two sets of support components can simultaneously support the heat dissipation flat tubes in two rows of welding ports, which helps to improve the welding efficiency of the device;

[0026] 3. The setting of the supporting groove realizes the limitation of the heat dissipation flat tube, ensuring that the heat dissipation flat tube always remains parallel during the welding process, which helps to improve the processing quality of the radiator body. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a structural diagram of an embodiment of the present application used to embody a laser welding structure of a heat dissipation mainboard and a flat tube.

[0028] Figure 2 It is a structural diagram used to reflect the supporting member in the embodiment of the present application.

[0029] Figure 3 It is a structural diagram used to reflect the support assembly in an embodiment of the present application.

[0030] Explanation of the accompanying drawings: 1. Radiator body; 101. Main board; 102. Heat dissipation flat tube; 103. Welding port; 104. Abutment ring; 2. Support base plate; 21. Sliding blind groove; 3. Support assembly; 31. Support plug block; 32. Moving block; 33. Support cylinder; 34. Drive screw; 35. Guide rod; 36. Drive motor; 37. Plug-in chamfer; 4. Support member; 41. Second vertical plate; 42. First supporting plate; 43. Second supporting plate; 44. Plug-in plate; 45. Plug-in groove; 46. Support groove; 5. First vertical plate; 6. Fixed clamping strip; 7. Sliding clamping strip; 8. Sliding column; 9. Clamping cylinder. DETAILED DESCRIPTION

[0031] The following is combined with Figure 1-3 The present application is further described in detail. The embodiment of the present application provides a laser welding structure of a heat dissipation mainboard and a flat tube, which has the effect of improving the production and processing quality of the heat sink.

[0032] Reference Figure 1 and Figure 2A laser-welded structure for heat dissipation mainboards and flat tubes includes a heat sink body 1, a support base 2, a support assembly 3, and a support member 4. The support base 2 is horizontally arranged, with two first vertical plates 5 fixedly connected vertically and parallel to the top surface of the support base 2. The first vertical plates 5 are arranged at one end of the lengthwise direction of the top surface of the support base 2. The heat sink body 1 is arranged on the top surface of the support base 2 along its lengthwise direction. The heat sink body 1 includes two mainboards 101 and a plurality of heat dissipation flat tubes 102 arranged parallel to the two mainboards 101. Two rows of horizontal welding openings 103 are formed on the mainboards 101. The shapes and positions of the welding openings 103 correspond one-to-one with the shapes and positions of the heat dissipation flat tubes 102. The ends of the heat dissipation flat tubes 102 are inserted into the corresponding welding openings 103. An abutment ring 104 is provided on the outer ring wall near each end of the heat dissipation flat tube 102. The two abutment rings 104 are arranged one-to-one with the two mainboards 101 and are arranged to fit the sides of the mainboards 101 that are close to each other. A plurality of heat dissipation fins 105 are arranged in parallel along the length of the heat dissipation flat tube 102 .

[0033] Reference Figure 2 and Figure 3 The first vertical plate 5 is disposed at one end of the radiator body 1 in the longitudinal direction. Two sets of support assemblies 3 are disposed between the two first vertical plates 5. The support assemblies 3 include a support insert 31, a movable block 32, a support cylinder 33, a drive screw 34, a guide rod 35, and a drive motor 36. The drive screw 34 and guide rod 35 are both horizontally disposed between the two first vertical plates 5. The guide rod 35 is fixedly connected to the first vertical plates 5, and both ends of the drive screw 34 are rotatably connected to the two first vertical plates 5. The drive motor 36 is disposed on one of the first vertical plates 5, and the output shaft of the drive motor 36 is in driving connection with one end of the drive screw 34. The movable block 32 is slidably disposed on the guide rod 35 and is threadedly connected to the drive screw 34. The support cylinder 33 is connected to the side of the movable block 32 away from the radiator body 1. The output shaft of the support cylinder 33 passes through the movable block 32 and extends toward the main board 101. The support insert 31 is connected to the output shaft of the support cylinder 33. The shape of the support insert 31 corresponds to the shape of the heat dissipation flat tube 102. The support insert 31 is provided with a plug chamfer 37 on the circumference of the end away from the support cylinder 33. The two support inserts 31 in the two support assemblies 3 are arranged at the same height as the two rows of welding ports 103 on the mainboard 101.

[0034] Reference Figure 2 and Figure 3A fixed clamping bar 6 and a sliding clamping bar 7 are disposed between the first vertical plate 5 and the radiator body 1. The fixed clamping bar 6 is fixedly connected to the top surface of the support base plate 2, while the sliding clamping bar 7 is slidably connected to the top surface of the support base plate 2. The bottom edge of one of the main plates 101 is disposed between the fixed clamping bar 6 and the sliding clamping bar 7. Both the fixed clamping bar 6 and the sliding clamping bar 7 are arranged parallel to the guide rod 35. A sliding column 8 is fixedly connected to the bottom surface of the sliding clamping bar 7. A sliding blind groove 21 is defined on the top surface of the support base plate 2 in a direction perpendicular to the guide rod 35. The sliding column 8 slides in the sliding blind groove 21. A clamping cylinder 9 is fixedly connected to the support base plate 2. The output shaft of the clamping cylinder 9 is arranged parallel to the length of the sliding blind groove 21 and is in driving connection with the sliding clamping bar 7.

[0035] Reference Figure 2 and Figure 3 The supporting member 4 is arranged on the supporting base plate 2, and the supporting member 4 includes a second vertical plate 41, a first supporting plate 42 and a second supporting plate 43. Two second vertical plates 41 are arranged vertically and parallel on the bottom surface of the supporting base plate 2. A connecting ear plate is connected to the bottom edge of the second vertical plate 41, and the connecting ear plate is connected to the supporting base plate 2 by bolts. The first supporting plate 42 is fixedly connected to the top surface of the supporting base plate 2 and is arranged between the two second vertical plates 41. The second supporting plate 43 is arranged between the two second vertical plates 41, and a plug-in plate 44 is connected to both ends of the second supporting plate 43 in the longitudinal direction. A plug-in slot 45 corresponding to the plug-in plate 44 is opened on the second vertical plate 41, and the plug-in plate 44 is inserted into the plug-in slot 45. The first supporting plate 42 is disposed directly below the second supporting plate 43. A plurality of supporting grooves 46 are disposed on the top surfaces of the first supporting plate 42 and the second supporting plate 43. The plurality of supporting grooves 46 are disposed in a one-to-one correspondence with the plurality of heat dissipation flat tubes 102. The first supporting plate 42 and the second supporting plate 43 are disposed in a one-to-one correspondence with the height of the bottom ends of the two rows of heat dissipation flat tubes 102, respectively.

[0036] Reference Figure 1 and Figure 3 When processing and welding the radiator, laser welding is used. Compared to the commonly used brazing method, the laser beam diameter can be adjusted according to actual conditions, reducing the possibility of cracks and helping to improve product quality. The mainboard 101 is placed vertically between the fixed clamping bar 6 and the sliding clamping bar 7. The clamping cylinder 9 is activated. The sliding clamping bar 7 moves toward the fixed clamping bar 6 under the driving force of the clamping cylinder 9 and the limiting and guiding action of the sliding column 8 and the sliding blind groove 21 until the mainboard 101 is clamped, thus securing the mainboard 101.

[0037] Reference Figure 1-3The plurality of heat dissipating flat tubes 102 are inserted one by one into the plurality of soldering openings 103 on the mainboard 101. The abutment ring 104 abuts against one side of the mainboard 101, limiting the position of the mainboard 101 and ensuring that each heat dissipating flat tube 102 maintains a consistent insertion length. The first support plate 42 supports the lower row of heat dissipating flat tubes 102. The second riser 41 is connected to the support base 2 via connecting lugs and bolts, and the second support plate 43 is connected between the two second risers 41. The second support plate 43 supports the upper row of heat dissipating flat tubes 102. The arrangement of the first and second support plates 42, 43 supports the heat dissipating flat tubes 102, ensuring that the heat dissipating flat tubes 102 and the mainboard 101 remain perpendicular during the soldering process, thereby improving the soldering quality of the radiator. The provision of the support grooves 46 limits the position of the plurality of heat dissipating flat tubes 102, ensuring that the plurality of heat dissipating flat tubes 102 remain parallel to each other.

[0038] Reference Figure 2 and Figure 3 After the motherboard 101 and the heat dissipation flat tubes 102 are connected, the drive motor 36 is started, driving the drive screw 34 to rotate. Under the drive of the drive screw 34 and the guiding and limiting action of the guide rod 35, the movable block 32 moves along the length direction of the guide rod 35 until the end of the support block 31 corresponds to the end position of one of the heat dissipation flat tubes 102.

[0039] Reference Figure 2 and Figure 3 The support cylinder 33 is activated, driving the support block 31 toward the heat dissipating tubes 102 until the support block 31 is inserted into the corresponding end of the heat dissipating tube 102. This provides support for the end of the heat dissipating tube 102 and prevents the end of the heat dissipating tube 102 from shrinking due to thermal stress during the welding process. The end of the support block 31 is provided with a plug chamfer 37, which facilitates the insertion of the support block 31 into the heat dissipating tube 102 and reduces the possibility of deformation of the end of the heat dissipating tube 102 due to the impact of the support block 31 during the support process.

[0040] Reference Figure 2 and Figure 3After the support insert 31 is inserted into the heat dissipating flat tubes 102, a laser welding device is used to weld the heat dissipating flat tubes 102 to the mainboard 101. Under the action of the support cylinder 33, the support insert 31 is withdrawn from the interior of one heat dissipating flat tube 102 and moved to the position of the next heat dissipating flat tube 102 to support the next heat dissipating flat tube 102. The provision of two sets of support assemblies 3 simultaneously supports two rows of heat dissipating flat tubes 102, which helps improve the processing efficiency of the radiator body 1. After completing the welding of the mainboard 101 on one end, the second riser 41 and second support plate 43 are removed, and the heat dissipating flat tubes 102 are rotated, and welding is performed on the mainboard 101 on the other end.

[0041] The principle of the laser welding structure for the heat dissipation mainboard and flat tubes in the present embodiment is as follows: the mainboard 101 is vertically clamped between the fixed clamping bar 6 and the sliding clamping bar 7. The heat dissipation flat tubes 102 are inserted one by one into the welding openings 103 on the mainboard 101. The first support plate 42 and the second support plate 43 support the heat dissipation flat tubes 102, ensuring that the heat dissipation flat tubes 102 and the mainboard 101 remain perpendicular during the welding process.

[0042] After the motherboard 101 and the heat dissipating flat tubes 102 are connected, the movable block 32 is driven to move until the end of the support plug 31 aligns with the end of one of the heat dissipating flat tubes 102. The support plug 31 is driven to insert into the end of the corresponding heat dissipating flat tube 102, providing support for the end of the heat dissipating flat tube 102 and preventing the end of the heat dissipating flat tube 102 from shrinking due to thermal stress during the welding process.

[0043] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A heat dissipation mainboard and flat tube laser welding structure, characterized by: The invention comprises a main board (101), a heat dissipation flat tube (102), a support base (2), a first vertical plate (5) and a support assembly (3); two main boards (101) are arranged in parallel; two rows of welding ports (103) are provided on the main board (101); a plurality of heat dissipation flat tubes (102) are arranged in parallel between the two main boards (101); the two ends of the plurality of heat dissipation flat tubes (102) correspond to and are plugged into the plurality of welding ports (103) on the main board (101); the first vertical plate (5) is arranged vertically and parallel to the top surface of the support base (2); There are two support assemblies (3), the support assembly (3) comprising a support plug (31), a guide rod (35) and a moving block (32), the guide rod (35) being connected between the two first vertical plates (5), the moving block (32) being slidably arranged on the guide rod (35), the support plug (31) being arranged on one side of the moving block (32), the main board (101) being arranged on one side of the support plug (31), and the moving block (32) being provided with a driving member for driving the support plug (31) to move toward the main board (101).

2. The heat dissipation mainboard and flat tube laser welding structure according to claim 1, characterized in that: Two abutment rings (104) are connected to the outer ring wall of the heat dissipation flat tube (102), and the two abutment rings (104) correspond to the two main boards (101) one by one. The abutment rings (104) abut against the sides of the two main boards (101) that are close to each other.

3. The heat dissipation mainboard and flat tube laser welding structure according to claim 1, characterized in that: The support assembly (3) is provided with two groups between the two first vertical plates (5), and the support assembly (3) further includes a driving motor (36) and a driving screw (34), wherein the driving motor (36) is connected to one of the first vertical plates (5), and the driving screw (34) is rotatably provided between the two first vertical plates (5) and is provided in parallel with the guide rod (35), and the driving screw (34) is threadedly connected to the moving block (32), and the two supporting inserts (31) in the two groups of the support assembly (3) respectively correspond in height to the two rows of the welding ports (103) on the main board (101).

4. The heat dissipation mainboard and flat tube laser welding structure according to claim 3, characterized in that: An inserting chamfer (37) is provided along the circumferential direction on one end of the supporting insert block (31) away from the moving block (32).

5. The heat dissipation mainboard and flat tube laser welding structure according to claim 4, characterized in that: A fixed clamping strip (6) and a sliding clamping strip (7) are arranged in parallel on the support base plate (2); the fixed clamping strip (6) and the sliding clamping strip (7) are arranged in parallel with the guide rod (35); the sliding clamping strip (7) is slidably connected to the support base plate (2); and a driving member for driving the sliding clamping strip (7) to move closer to or away from the fixed clamping strip (6) is arranged on the support base plate (2).

6. The heat dissipation mainboard and flat tube laser welding structure according to claim 1, characterized in that: A supporting member (4) is provided on the supporting base plate (2), and the supporting member (4) includes a first supporting plate (42), a second supporting plate (43) and a second vertical plate (41), two second vertical plates (41) are provided vertically and parallel on the top surface of the supporting base plate (2), the first supporting plate (42) is provided on the top surface of the supporting base plate (2) and is located between the two second vertical plates (41), the second supporting plate (43) is provided horizontally between the two second vertical plates (41), and the second supporting plate (43) is provided above the first supporting plate (42), and the top surface heights of the first supporting plate (42) and the second supporting plate (43) are provided corresponding to the bottom surface heights of the two rows of heat dissipation flat tubes (102).

7. The heat dissipation mainboard and flat tube laser welding structure according to claim 6, characterized in that: A plurality of supporting grooves (46) are provided on the top surfaces of the first supporting plate (42) and the second supporting plate (43), and the plurality of supporting grooves (46) are arranged in a one-to-one correspondence with the shapes and positions of the bottom surfaces of the plurality of heat dissipation flat tubes (102).

8. The heat dissipation mainboard and flat tube laser welding structure according to claim 7, characterized in that: A plug-in plate (44) is provided at both ends of the second supporting plate (43) in the longitudinal direction; a plug-in slot (45) corresponding in shape and position to the plug-in plate (44) is provided on the second vertical plate (41); the plug-in plate (44) is inserted into the corresponding plug-in slot (45); and the second vertical plate (41) is detachably connected to the top surface of the supporting base plate (2).

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