Tool and method for processing thermoelectric module with heat sink
By using a combination of TO tube seats, thermoelectric module positioning sheets and heat sink positioning sheets in the thermoelectric module processing tooling, the primary welding forming of the thermoelectric module and the heat sink is achieved, solving the problems of position accuracy and temperature resistance during the welding process, and improving the reliability and overall performance of welding.
Patent Information
- Application Number
- CN202510099499.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-22
- Publication Date
- 2025-05-16
AI Technical Summary
During the welding process of thermoelectric modules with heat sinks, it is difficult to ensure the position, rotation angle and parallelism between the thermoelectric module and the heat sink. Traditional secondary welding requires solder of different temperatures, which reduces the temperature resistance of the components and increases risks.
A thermoelectric module processing tooling with a heat sink is adopted, including a base and a positioning mechanism. Through the cooperation of the TO tube seat, the thermoelectric module positioning sheet and the heat sink positioning sheet, the primary welding forming of the thermoelectric module and the heat sink is achieved to ensure its position, rotation angle and parallelism.
Through primary welding molding, the position accuracy of the thermoelectric module and the heat sink is ensured, the risks brought about by secondary welding are avoided, and the overall temperature resistance is improved.
Smart Images
Figure CN120002121A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of thermoelectric devices, and more specifically, to a processing tool and method for a thermoelectric module with a heat sink. Background Art
[0002] The premise for AI to become intelligent is to transmit and process massive amounts of data. Optical modules use photoelectric conversion technology, lasers and photodetectors to convert electrical signals into optical signals, and then transmit them to thousands of miles away via optical fibers to achieve rapid information flow. The operating temperature is crucial to optical modules, which directly affects the performance, reliability and life of optical modules, and thermoelectric modules are the key to achieving this goal. Since customers need to install components such as lasers on heat sinks, there are very high requirements for the position, rotation angle and parallelism of thermoelectric modules and heat sinks. However, when welding thermoelectric modules with heat sinks, even if a placement machine is used to place the thermoelectric module and the heat sink in the right position, the two will move as the solder melts during heating, making it difficult to ensure the position, rotation angle and parallelism of the thermoelectric module and the heat sink. In addition, traditional secondary welding requires the selection of solder A and solder B of different temperatures to ensure that when solder A melts, solder B will not melt again, which not only reduces the overall temperature resistance of the component, but also increases the risk of secondary welding. Summary of the invention
[0003] In order to overcome the above-mentioned shortcomings, the present invention provides a processing tool and method for a thermoelectric module with a heat sink. The thermoelectric module with a heat sink is formed by one-time welding, thereby ensuring the position, rotation angle and parallelism of the thermoelectric module and the heat sink.
[0004] In order to solve the above technical problems, the present invention adopts the following technical solutions: a thermoelectric module processing tool with a heat sink, comprising a base and a positioning mechanism, the base is provided with a positioning hole adapted to a TO tube socket; the positioning mechanism comprises a thermoelectric module positioning plate and a heat sink positioning plate, the thermoelectric module positioning plate and the heat sink positioning plate are respectively provided with a thermoelectric module positioning slot and a heat sink positioning slot; the base is connected to a pressing plate, the thermoelectric module is placed between the TO tube socket and the heat sink, the TO tube socket is supported on the base, and the pressing plate presses the heat sink.
[0005] When processing a thermoelectric module with a heat sink, it is necessary to weld the heat sink, thermoelectric module, and TO tube holder together. Before welding, clamp the heat sink, thermoelectric module, and TO tube holder between the pressure plate and the base to prevent offset during welding. The TO tube holder is loaded on the base, and the TO tube holder is positioned with the positioning hole; after applying flux and solder to the lower welding surface of the thermoelectric module, it is loaded to the welding position of the TO tube holder. At this time, the thermoelectric module positioning slot on the thermoelectric module positioning sheet is positioned with the thermoelectric module set to prevent the thermoelectric module from moving laterally. After that, after applying flux and solder to the welding surface of the heat sink, it is loaded on the top surface of the thermoelectric module. At this time, the heat sink positioning slot on the heat sink positioning sheet is positioned with the heat sink set. Finally, the pressing plate is pressed onto the top surface of the heat sink, and the pressing plate is connected to the base. At this time, the heat sink, thermoelectric module, and TO tube seat are clamped between the pressing plate and the base, realizing longitudinal positioning, and the positioning hole realizes the lateral positioning of the TO tube seat, the thermoelectric module positioning slot realizes the lateral positioning of the thermoelectric module, and the heat sink positioning slot realizes the lateral positioning of the heat sink. Finally, the entire tooling is sent to the heating furnace for heating and welding, so that the thermoelectric module with the heat sink is welded and formed at one time, ensuring the position, rotation angle and parallelism of the thermoelectric module and the heat sink.
[0006] Preferably, a plurality of pins are provided on the TO tube holder, and the positioning holes and the pins are adapted to each other.
[0007] The TO tube holder is laterally positioned by fitting multiple pins on the TO tube holder into the positioning holes on the base, and the positioning is accurate and reliable.
[0008] Preferably, a connecting column is provided on the base, and both the thermoelectric module positioning plate and the heat sink positioning plate are connected to the connecting column.
[0009] The arrangement of the connecting column facilitates the connection between the thermoelectric module positioning plate, the heat sink positioning plate and the base.
[0010] Preferably, an extension portion is provided at the lower edge of the thermoelectric module positioning slot, and an inner wall of the extension portion is inclined outward from top to bottom.
[0011] The inner wall of the extension part is inclined, which plays a good guiding role and facilitates the positioning of the upper part of the thermoelectric module and the positioning slot of the thermoelectric module.
[0012] Preferably, a lifting mechanism is connected between the lower portion of the connecting column and the base, and the lifting mechanism includes a driving ring, and the driving ring rotates to drive the connecting column to move up and down.
[0013] Since the thermoelectric module positioning slot on the thermoelectric module positioning sheet is mounted on the upper part of the thermoelectric module, the setting of the lifting mechanism enables the connection column to be lifted and moved. During operation, the thermoelectric module positioning sheet is first installed on the base, and then the thermoelectric module is loaded. Before loading the thermoelectric module, the connection column is lifted by the lifting mechanism, and the thermoelectric module positioning sheet is lifted upward, and then the thermoelectric module is loaded. During the loading process, the solder attached to the lower surface of the thermoelectric module is not easy to touch the TO tube seat, and the upper surface of the thermoelectric module is not easy to touch the thermoelectric module positioning sheet, so as to prevent the solder position from shifting and prevent the surface of the thermoelectric module from being damaged after being touched. After the upper part of the thermoelectric module is mounted on the thermoelectric module positioning slot, the driving mechanism drives the connection column to move downward, and at the same time releases the thermoelectric module, and the lower end of the thermoelectric module is supported on the TO tube seat. During this process, the thermoelectric module will not shift laterally, ensuring the accuracy of the lateral position.
[0014] Preferably, a locking pin and a preload spring are installed on the driving ring, the preload spring abuts against the locking pin, a locking hole is provided on the base, and the locking pin is inserted into the locking hole to realize locking and positioning of the driving ring.
[0015] After the driving ring is rotated into place, the locking pin is aligned with the locking hole, and under the action of the preload spring, the locking pin is inserted into the locking hole, thereby realizing the locking and positioning of the driving ring.
[0016] Preferably, a push bar is provided on the driving ring and corresponding to the connecting column, the push bar is provided with a push surface inclined along the circumferential direction, an abutment joint is provided on the connecting column, the abutment joint is supported on the push surface, and a positioning spring is installed between the connecting column and the base.
[0017] When the driving ring rotates, the inclined pushing surface on the pushing strip abuts against the abutting head, and the connecting column is lifted upwards during the process of the pushing strip rotating with the driving ring. When the driving ring rotates in the reverse direction, the connecting column moves downwards under the action of the positioning spring.
[0018] In another solution, spiral grooves are provided on the side wall of the driving ring and corresponding to the connecting pillars, the connecting pillars are connected to guide pillars, and the ends of the guide pillars are inserted into the spiral grooves.
[0019] During the rotation of the driving ring, the spiral groove pushes the guide column to move up and down, thereby realizing the lifting and moving of the connecting column, which is stable and reliable.
[0020] Preferably, two guide rods are arranged above the base, and the thermoelectric module is mounted on the two guide rods.
[0021] During the process of loading the thermoelectric module into the TO tube holder, two guide rods support the thermoelectric module to limit the height position of the thermoelectric module. The thermoelectric module slides along the two guide rods to the bottom of the thermoelectric module positioning plate. During this process, the upper end of the thermoelectric module will not touch the thermoelectric module positioning plate, and the lower end of the thermoelectric module will not touch the TO tube holder. In addition, the positions of the left and right sides of the thermoelectric module are limited, making it easier to align the upper part of the thermoelectric module with the thermoelectric module positioning slot.
[0022] A method for processing a thermoelectric module with a heat sink is used for processing using a thermoelectric module processing tool with a heat sink, and comprises the following steps: S1, installing a TO tube seat and a thermoelectric module positioning piece on a base; S2, applying flux and sticking solder B on the lower welding surface of the thermoelectric module, installing the thermoelectric module with solder B on the welding position of the TO tube seat, and fitting the thermoelectric module positioning slot with the thermoelectric module; S3, installing the heat sink positioning piece on the base; S4, applying flux and sticking solder A on the welding surface of the heat sink, installing the heat sink with solder A on the top of the thermoelectric module, and fitting the heat sink positioning slot with the heat sink; S5, pressing the heat sink with a pressing plate and connecting it to the base; S6, sending the entire tool into a heating furnace for heating and welding.
[0023] When welding the heat sink, thermoelectric module and TO socket, first load and position the heat sink, thermoelectric module and TO socket onto the tooling. The positioning holes on the base realize the lateral positioning of the TO socket, the positioning slots of the thermoelectric module realize the lateral positioning of the thermoelectric module, and the positioning slots of the heat sink realize the lateral positioning of the heat sink. Finally, the entire tooling is sent into the heating furnace for heating and welding, so that the thermoelectric module with the heat sink is welded and formed in one time, ensuring the position, rotation angle and parallelism of the thermoelectric module and the heat sink. Since one-time welding is adopted, the solder A and solder B can be selected from the same solder to improve the overall temperature resistance.
[0024] Compared with the prior art, the present invention has the following beneficial effects: (1) the thermoelectric module with the heat sink is formed by one-time welding, which ensures the position, rotation angle and parallelism of the thermoelectric module and the heat sink; (2) the positioning piece of the thermoelectric module can be raised and lowered. Before loading the thermoelectric module, the positioning piece of the thermoelectric module is raised upward, and then the thermoelectric module is loaded. During the loading process, the solder attached to the lower surface of the thermoelectric module is not easy to touch the TO tube seat, and the upper surface of the thermoelectric module is not easy to touch the thermoelectric module positioning piece, thereby preventing the solder position from being offset and preventing the surface of the thermoelectric module from being damaged after being touched. BRIEF DESCRIPTION OF THE DRAWINGS
[0025] Figure 1 It is a structural schematic diagram of the present invention.
[0026] Figure 2 It is a structural diagram of a thermoelectric module with a heat sink after processing according to the present invention.
[0027] Figure 3 It is a structural diagram of Example 2 of the present invention.
[0028] Figure 4 It is a schematic diagram of the lifting mechanism of embodiment 2 of the present invention.
[0029] Figure 5 It is a structural diagram of Example 3 of the present invention.
[0030] Figure 6 It is a schematic diagram of the lifting mechanism of embodiment 3 of the present invention.
[0031] In the figure: 1. base, 2. positioning mechanism, 3. TO tube seat, 4. positioning hole, 5. pin, 6. thermoelectric module positioning plate, 7. heat sink positioning plate, 8. thermoelectric module positioning slot, 9. heat sink positioning slot, 10. pressure plate, 11. connecting column, 12. fastening screw, 13. insertion column, 14. insertion hole, 15. positioning sleeve, 16. sleeve hole, 17. extension part, 18. drive ring, 19. locking pin, 20. preload spring, 21. locking hole, 22. lever, 23. avoidance groove, 24. push bar, 25. abutment head, 26. positioning spring, 27. mounting hole, 28. convex ring, 29. limit cover, 30. thermoelectric module, 31. heat sink, 32. spiral groove, 33. guide column, 34. guide rod. DETAILED DESCRIPTION
[0032] The technical solution of the present invention is further described in detail below through specific embodiments and in conjunction with the accompanying drawings: Example 1: A thermoelectric module processing tool with a heat sink (see Figure 1 , Figure 2 ), including a base 1 and a positioning mechanism 2, the positioning mechanism 2 is installed on the base 1, and the base 1 is provided with a positioning hole 4 adapted to the TO tube seat 3; a plurality of pins 5 are arranged on the TO tube seat 3, and the plurality of positioning holes 4 and the plurality of pins 5 are adapted one by one. The positioning mechanism 2 includes a thermoelectric module positioning piece 6 and a heat sink positioning piece 7, the heat sink positioning piece 7 is placed above the thermoelectric module positioning piece 6, and the thermoelectric module positioning slot 8 and the heat sink positioning slot 9 are respectively arranged on the thermoelectric module positioning piece 6 and the heat sink positioning piece 7; the thermoelectric module positioning slot 8 is adapted to the upper part of the thermoelectric module 30, and the heat sink positioning slot 9 is adapted to the heat sink 31. The thermoelectric module positioning slot 8 and the heat sink positioning slot 9 are both rectangular structures, and the thermoelectric module 30 and the heat sink 31 are both rectangular structures. The base 1 is connected to the pressing plate 10, the thermoelectric module 30 is placed between the TO tube seat 3 and the heat sink 31, the TO tube seat 3 is supported on the base 1, and the pressing plate 10 presses the heat sink 31.
[0033] A connecting column 11 is provided on the base 1, and both the thermoelectric module positioning piece 6 and the heat sink positioning piece 7 are connected to the connecting column 11. A fastening screw 12 is connected between the pressure plate 10 and the connecting column 11. The base 1 is a rectangular structure, and the four corners of the base 1 are connected with connecting columns 11. An inserting column 13 is provided on the upper end of the connecting column 11, and an inserting hole 14 corresponding to the inserting column 13 is provided on the thermoelectric module positioning piece 6. The thermoelectric module positioning piece 6 is plug-connected with the inserting column 13 through the inserting hole 14, and the thermoelectric module positioning piece 6 is supported on the upper end surface of the connecting column 11. A positioning sleeve 15 is threadedly connected to the inserting column 13, and the lower end of the positioning sleeve 15 abuts against the thermoelectric module positioning piece 6. A sleeve hole 16 corresponding to the positioning sleeve 15 is provided on the heat sink positioning piece 7, and the sleeve hole 16 is matched with the positioning sleeve 15. The fastening screws 12 connected to the pressing plate 10 are threadedly connected to the inserting columns 13 at the upper ends of the connecting columns 11 , and the pressing plate 10 is pressed tightly against the top surface of the heat sink 31 .
[0034] A method for processing a thermoelectric module with a heat sink is performed using a thermoelectric module processing tool with a heat sink, comprising the following steps: S1, a TO tube holder 3 and a thermoelectric module positioning piece 6 are installed on a base 1, the pins 5 on the TO tube holder 3 are inserted and positioned in a one-to-one correspondence with the positioning holes 4 on the base 1, and the insertion holes 14 on the thermoelectric module positioning piece 6 are inserted and connected with the insertion columns 13.
[0035] S2, apply flux and solder B on the lower welding surface of the thermoelectric module 30, lift the thermoelectric module positioning plate 6 upward to a certain height, install the thermoelectric module 30 with solder B on the welding position of the TO tube seat 3, put down the thermoelectric module positioning plate 6, adjust the position of the thermoelectric module 30 so that the thermoelectric module positioning slot 8 is fitted with the upper part of the thermoelectric module 30.
[0036] S3, threading the positioning sleeve 15 on the insertion column 13, the lower end of the positioning sleeve 15 abuts against the thermoelectric module positioning piece 6, and then the heat sink positioning piece 7 is installed on the base 1; the sleeve hole 16 on the heat sink positioning piece 7 is correspondingly sleeved and connected with the positioning sleeve 15.
[0037] S4, apply flux and solder A on the welding surface of the heat sink 31, install the heat sink 31 with solder A on the top of the thermoelectric module 30, and fit the heat sink positioning slot 9 with the heat sink 31.
[0038] S5, the pressing plate 10 presses the heat sink 31 and connects to the base 1; the pressing plate 10 is connected with the fastening screws 12, which are threadedly connected to the insertion column 13 at the upper end of the connecting column 11, and the pressing plate 10 is pressed against the top surface of the heat sink 31.
[0039] S6, sending the entire tooling into a heating furnace for heating and welding.
[0040] S7, after the welding is completed, the tooling is taken out, the pressing plate 10, the heat sink positioning piece 7, and the thermoelectric module positioning piece 6 are removed, and finally the thermoelectric module 30 with the heat sink 31 after welding is removed, and the flux is washed off with acetone after cooling.
[0041] When processing the thermoelectric module 30 with the heat sink 31, the heat sink 31, the thermoelectric module 30 and the TO tube seat 3 need to be welded together. Before welding, the heat sink 31, the thermoelectric module 30 and the TO tube seat 3 are clamped and positioned between the pressure plate 10 and the base 1 to prevent displacement during welding. The TO tube seat 3 is loaded on the base 1, and the TO tube seat 3 is positioned with the positioning hole 4; after the lower welding surface of the thermoelectric module 30 is coated with flux and solder is affixed, it is loaded to the welding position of the TO tube seat 3. At this time, the thermoelectric module positioning slot 8 on the thermoelectric module positioning sheet 6 is fitted and positioned with the thermoelectric module 30 to prevent the thermoelectric module 30 from moving laterally. After that, after applying flux and solder on the welding surface of the heat sink 31, it is loaded on the top surface of the thermoelectric module 30. At this time, the heat sink positioning slot 9 on the heat sink positioning sheet 7 is fitted and positioned with the heat sink 31. Finally, the pressing plate 10 is pressed onto the top surface of the heat sink 31, and the pressing plate 10 is connected to the base 1. At this time, the heat sink 31, the thermoelectric module 30, and the TO tube seat 3 are clamped between the pressing plate 10 and the base 1, realizing longitudinal positioning, and the positioning hole 4 realizes the transverse positioning of the TO tube seat 3, the thermoelectric module positioning slot 8 realizes the transverse positioning of the thermoelectric module 30, and the heat sink positioning slot 9 realizes the transverse positioning of the heat sink 31. Finally, the entire tooling is sent to a heating furnace for heating and welding, so that the thermoelectric module 30 with the heat sink 31 is welded and formed in one time, avoiding the risks brought by secondary welding, and ensuring the position, rotation angle and parallelism of the thermoelectric module 30 and the heat sink 31.
[0042] Example 2: A thermoelectric module processing tool with a heat sink (see Figure 3 , Figure 4 ), including a base 1 and a positioning mechanism 2, the positioning mechanism 2 is installed on the base 1, and the base 1 is provided with a positioning hole 4 adapted to the TO tube seat 3; a plurality of pins 5 are arranged on the TO tube seat 3, and the plurality of positioning holes 4 and the plurality of pins 5 are adapted one by one. The positioning mechanism 2 includes a thermoelectric module positioning piece 6 and a heat sink positioning piece 7, the heat sink positioning piece 7 is placed above the thermoelectric module positioning piece 6, and the thermoelectric module positioning slot 8 and the heat sink positioning slot 9 are respectively arranged on the thermoelectric module positioning piece 6 and the heat sink positioning piece 7; the thermoelectric module positioning slot 8 is adapted to the upper part of the thermoelectric module 30, and the heat sink positioning slot 9 is adapted to the heat sink 31. The thermoelectric module positioning slot 8 and the heat sink positioning slot 9 are both rectangular structures, and the thermoelectric module 30 and the heat sink 31 are both rectangular structures. The base 1 is connected to the pressing plate 10, the thermoelectric module 30 is placed between the TO tube seat 3 and the heat sink 31, the TO tube seat 3 is supported on the base 1, and the pressing plate 10 presses the heat sink 31.
[0043] A connecting column 11 is provided on the base 1, and both the thermoelectric module positioning piece 6 and the heat sink positioning piece 7 are connected to the connecting column 11. A fastening screw 12 is connected between the pressure plate 10 and the connecting column 11. The base 1 is a rectangular structure, and the four corners of the base 1 are connected with connecting columns 11. An inserting column 13 is provided on the upper end of the connecting column 11, and an inserting hole 14 corresponding to the inserting column 13 is provided on the thermoelectric module positioning piece 6. The thermoelectric module positioning piece 6 is plug-connected with the inserting column 13 through the inserting hole 14, and the thermoelectric module positioning piece 6 is supported on the upper end surface of the connecting column 11. A positioning sleeve 15 is threadedly connected to the inserting column 13, and the lower end of the positioning sleeve 15 abuts against the thermoelectric module positioning piece 6. A sleeve hole 16 corresponding to the positioning sleeve 15 is provided on the heat sink positioning piece 7, and the sleeve hole 16 is matched with the positioning sleeve 15. The fastening screws 12 connected to the pressing plate 10 are threadedly connected to the inserting columns 13 at the upper ends of the connecting columns 11 , and the pressing plate 10 is pressed tightly against the top surface of the heat sink 31 .
[0044] An extension 17 is provided at the lower edge of the thermoelectric module positioning slot 8, and the inner wall of the extension 17 is inclined outward from top to bottom. The inner wall of the extension 17 is inclined, which plays a good guiding role, and is convenient for the upper part of the thermoelectric module 30 to be fitted and positioned with the thermoelectric module positioning slot 8. A lifting mechanism is connected between the lower part of the connecting column 11 and the base 1, and the lifting mechanism includes a driving ring 18, and the driving ring 18 rotates to drive the connecting column 11 to move up and down. A locking pin 19 and a preload spring 20 are installed on the driving ring 18, and the preload spring 20 abuts against the locking pin 19. A locking hole 21 is provided on the base 1, and the locking pin 19 is inserted into the locking hole 21 to realize the locking positioning of the driving ring 18. A lever 22 is provided on the locking pin 19, and the lever 22 extends outward. An avoidance groove 23 for the lever 22 to slide is provided on the side wall of the driving ring 18, and the lever 22 passes through the avoidance groove 23. The lever 22 moves upward to pull the locking pin 19 out of the locking hole 21, and the lever 22 moves circumferentially to drive the driving ring 18 to rotate. An annular groove is provided on the base 1 corresponding to the driving ring 18, and the driving ring 18 is rotatably mounted at the annular groove.
[0045] Since the thermoelectric module positioning slot 8 on the thermoelectric module positioning sheet 6 is set on the upper part of the thermoelectric module 30, the setting of the lifting mechanism enables the connecting column 11 to be lifted and moved. During operation, the thermoelectric module positioning sheet 6 is first installed on the base 1, and then the thermoelectric module 30 is loaded. Before loading the thermoelectric module 30, the connecting column 11 is raised by the lifting mechanism, and the thermoelectric module positioning sheet 6 is raised upward at this time, and then the thermoelectric module 30 is loaded. During the loading process, the solder attached to the lower surface of the thermoelectric module 30 is not easy to touch the TO tube seat 3, and the upper surface of the thermoelectric module 30 is not easy to touch the thermoelectric module positioning sheet 6, so as to prevent the solder position from being offset and prevent the surface of the thermoelectric module 30 from being damaged after being touched. After the upper part of the thermoelectric module 30 is fitted with the thermoelectric module positioning slot 8, the driving mechanism drives the connecting column 11 to move downward, and at the same time releases the thermoelectric module 30, and the lower end of the thermoelectric module 30 is supported on the TO tube seat 3. In this process, the thermoelectric module 30 will not be offset horizontally, so as to ensure the accuracy of the horizontal position.
[0046] A push strip 24 is provided on the driving ring 18 corresponding to the connecting column 11, and a push surface is provided on the push strip 24 along the circumferential direction. An abutment joint 25 is provided on the connecting column 11, and the abutment joint 25 is supported on the push surface. A positioning spring 26 is installed between the connecting column 11 and the base 1. A mounting hole 27 is provided on the base 1 corresponding to the connecting column 11, and a convex ring 28 is provided at the lower part of the connecting column 11. The convex ring 28 is movably connected with the mounting hole 27. A limit cover 29 is connected on the upper surface of the base 1 corresponding to the mounting hole 27, and the positioning spring 26 abuts between the convex ring 28 and the limit cover 29.
[0047] When the driving ring 18 rotates, the inclined pushing surface on the pushing strip 24 abuts against the abutting head 25, and the connecting column 11 is pushed upwards during the rotation of the pushing strip 24 along with the driving ring 18. When the driving ring 18 is rotated in the reverse direction, the connecting column 11 moves downwards under the action of the positioning spring 26.
[0048] A method for processing a thermoelectric module with a heat sink is used for processing using a thermoelectric module processing tool with a heat sink, and includes the following steps: S1, a TO tube holder 3 and a thermoelectric module positioning piece 6 are installed on a base 1, the pins 5 on the TO tube holder 3 are inserted and positioned correspondingly to the positioning holes 4 on the base 1, and the insertion holes 14 on the thermoelectric module positioning piece 6 are inserted and connected with the insertion columns 13; a positioning sleeve 15 is threadedly connected to the insertion column 13, and the lower end of the positioning sleeve 15 abuts against the thermoelectric module positioning piece 6.
[0049] S2, the lower welding surface of the thermoelectric module 30 is coated with flux and solder B is affixed, the driving ring 18 is rotated, the connecting column 11 is lifted upward, the thermoelectric module positioning piece 6 is lifted upward to a certain height, and the thermoelectric module 30 with solder B is transferred to the welding position of the TO tube holder 3, the driving ring 18 is reversed to move the thermoelectric module positioning piece 6 downward, the position of the thermoelectric module 30 is adjusted so that the thermoelectric module positioning slot 8 is fitted with the upper part of the thermoelectric module 30, and then the thermoelectric module 30 is lowered to be installed at the welding position of the TO tube holder 3.
[0050] S3, installing the heat sink positioning piece 7 onto the base 1; the sleeve hole 16 on the heat sink positioning piece 7 is correspondingly sleeved and connected with the positioning sleeve 15.
[0051] S4, apply flux and solder A on the welding surface of the heat sink 31, install the heat sink 31 with solder A on the top of the thermoelectric module 30, and fit the heat sink positioning slot 9 with the heat sink 31.
[0052] S5, the pressing plate 10 presses the heat sink 31 and connects to the base 1; the pressing plate 10 is connected with the fastening screws 12, which are threadedly connected to the insertion column 13 at the upper end of the connecting column 11, and the pressing plate 10 is pressed against the top surface of the heat sink 31.
[0053] S6, sending the entire tooling into a heating furnace for heating and welding.
[0054] S7, after the welding is completed, the tooling is taken out, the pressing plate 10, the heat sink positioning piece 7, and the thermoelectric module positioning piece 6 are removed, and finally the thermoelectric module 30 with the heat sink 31 after welding is removed, and the flux is washed off with acetone after cooling.
[0055] When processing the thermoelectric module 30 with the heat sink 31, the heat sink 31, the thermoelectric module 30 and the TO tube seat 3 need to be welded together. Before welding, the heat sink 31, the thermoelectric module 30 and the TO tube seat 3 are clamped and positioned between the pressure plate 10 and the base 1 to prevent displacement during welding. The TO tube seat 3 is loaded on the base 1, and the TO tube seat 3 is positioned with the positioning hole 4; after the lower welding surface of the thermoelectric module 30 is coated with flux and solder is affixed, it is loaded to the welding position of the TO tube seat 3. At this time, the thermoelectric module positioning slot 8 on the thermoelectric module positioning sheet 6 is fitted and positioned with the thermoelectric module 30 to prevent the thermoelectric module 30 from moving laterally. After that, after applying flux and solder on the welding surface of the heat sink 31, it is loaded on the top surface of the thermoelectric module 30. At this time, the heat sink positioning slot 9 on the heat sink positioning sheet 7 is fitted and positioned with the heat sink 31. Finally, the pressing plate 10 is pressed onto the top surface of the heat sink 31, and the pressing plate 10 is connected to the base 1. At this time, the heat sink 31, the thermoelectric module 30, and the TO tube seat 3 are clamped between the pressing plate 10 and the base 1, realizing longitudinal positioning, and the positioning hole 4 realizes the transverse positioning of the TO tube seat 3, the thermoelectric module positioning slot 8 realizes the transverse positioning of the thermoelectric module 30, and the heat sink positioning slot 9 realizes the transverse positioning of the heat sink 31. Finally, the entire tooling is sent to a heating furnace for heating and welding, so that the thermoelectric module 30 with the heat sink 31 is welded and formed in one time, avoiding the risks brought by secondary welding, and ensuring the position, rotation angle and parallelism of the thermoelectric module 30 and the heat sink 31.
[0056] Example 3: A thermoelectric module processing tool with a heat sink (see Figure 5 , Figure 6 ), including a base 1 and a positioning mechanism 2, the positioning mechanism 2 is installed on the base 1, and the base 1 is provided with a positioning hole 4 adapted to the TO tube seat 3; a plurality of pins 5 are arranged on the TO tube seat 3, and the plurality of positioning holes 4 and the plurality of pins 5 are adapted one by one. The positioning mechanism 2 includes a thermoelectric module positioning piece 6 and a heat sink positioning piece 7, the heat sink positioning piece 7 is placed above the thermoelectric module positioning piece 6, and the thermoelectric module positioning slot 8 and the heat sink positioning slot 9 are respectively arranged on the thermoelectric module positioning piece 6 and the heat sink positioning piece 7; the thermoelectric module positioning slot 8 is adapted to the upper part of the thermoelectric module 30, and the heat sink positioning slot 9 is adapted to the heat sink 31. The thermoelectric module positioning slot 8 and the heat sink positioning slot 9 are both rectangular structures, and the thermoelectric module 30 and the heat sink 31 are both rectangular structures. The base 1 is connected to the pressing plate 10, the thermoelectric module 30 is placed between the TO tube seat 3 and the heat sink 31, the TO tube seat 3 is supported on the base 1, and the pressing plate 10 presses the heat sink 31.
[0057] A connecting column 11 is provided on the base 1, and both the thermoelectric module positioning piece 6 and the heat sink positioning piece 7 are connected to the connecting column 11. A fastening screw 12 is connected between the pressure plate 10 and the connecting column 11. The base 1 is a rectangular structure, and the four corners of the base 1 are connected with connecting columns 11. An inserting column 13 is provided on the upper end of the connecting column 11, and an inserting hole 14 corresponding to the inserting column 13 is provided on the thermoelectric module positioning piece 6. The thermoelectric module positioning piece 6 is plug-connected with the inserting column 13 through the inserting hole 14, and the thermoelectric module positioning piece 6 is supported on the upper end surface of the connecting column 11. A positioning sleeve 15 is threadedly connected to the inserting column 13, and the lower end of the positioning sleeve 15 abuts against the thermoelectric module positioning piece 6. A sleeve hole 16 corresponding to the positioning sleeve 15 is provided on the heat sink positioning piece 7, and the sleeve hole 16 is matched with the positioning sleeve 15. The fastening screws 12 connected to the pressing plate 10 are threadedly connected to the inserting columns 13 at the upper ends of the connecting columns 11 , and the pressing plate 10 is pressed tightly against the top surface of the heat sink 31 .
[0058] An extension 17 is provided at the lower edge of the thermoelectric module positioning slot 8, and the inner wall of the extension 17 is inclined outward from top to bottom. The inner wall of the extension 17 is inclined, which plays a good guiding role, and is convenient for the upper part of the thermoelectric module 30 to be fitted and positioned with the thermoelectric module positioning slot 8. A lifting mechanism is connected between the lower part of the connecting column 11 and the base 1, and the lifting mechanism includes a driving ring 18, and the driving ring 18 rotates to drive the connecting column 11 to move up and down. A locking pin 19 and a preload spring 20 are installed on the driving ring 18, and the preload spring 20 abuts against the locking pin 19. A locking hole 21 is provided on the base 1, and the locking pin 19 is inserted into the locking hole 21 to realize the locking positioning of the driving ring 18. A lever 22 is provided on the locking pin 19, and the lever 22 extends outward. An avoidance groove 23 for the lever 22 to slide is provided on the side wall of the driving ring 18, and the lever 22 passes through the avoidance groove 23. The lever 22 moves upward to pull the locking pin 19 out of the locking hole 21, and the lever 22 moves circumferentially to drive the driving ring 18 to rotate. An annular groove is arranged on the base 1 corresponding to the driving ring 18, and the driving ring 18 is rotatably mounted at the annular groove.
[0059] Since the thermoelectric module positioning slot 8 on the thermoelectric module positioning sheet 6 is set on the upper part of the thermoelectric module 30, the setting of the lifting mechanism enables the connecting column 11 to be lifted and moved. During operation, the thermoelectric module positioning sheet 6 is first installed on the base 1, and then the thermoelectric module 30 is loaded. Before loading the thermoelectric module 30, the connecting column 11 is raised by the lifting mechanism, and the thermoelectric module positioning sheet 6 is raised upward at this time, and then the thermoelectric module 30 is loaded. During the loading process, the solder attached to the lower surface of the thermoelectric module 30 is not easy to touch the TO tube seat 3, and the upper surface of the thermoelectric module 30 is not easy to touch the thermoelectric module positioning sheet 6, so as to prevent the solder position from being offset and prevent the surface of the thermoelectric module 30 from being damaged after being touched. After the upper part of the thermoelectric module 30 is fitted with the thermoelectric module positioning slot 8, the driving mechanism drives the connecting column 11 to move downward, and at the same time releases the thermoelectric module 30, and the lower end of the thermoelectric module 30 is supported on the TO tube seat 3. In this process, the thermoelectric module 30 will not be offset horizontally, so as to ensure the accuracy of the horizontal position.
[0060] A spiral groove 32 is provided on the side wall of the driving ring 18 corresponding to the connecting column 11, and a guide column 33 is connected to the connecting column 11, and the end of the guide column 33 is inserted into the spiral groove 32. A mounting hole 27 is provided on the base 1 corresponding to the connecting column 11, and the lower part of the connecting column 11 is installed in the mounting hole 27. During the rotation of the driving ring 18, the spiral groove 32 pushes the guide column 33 to move up and down, thereby realizing the lifting and moving of the connecting column 11, which is stable and reliable.
[0061] Two guide rods 34 are arranged above the base 1, and the thermoelectric module 30 is mounted on the two guide rods 34. During the process of loading the thermoelectric module 30 onto the TO tube holder 3, the two guide rods 34 support the thermoelectric module 30, thereby limiting the height position of the thermoelectric module 30. The thermoelectric module 30 slides along the two guide rods 34 to below the thermoelectric module positioning piece 6. During this process, the upper end of the thermoelectric module 30 will not touch the thermoelectric module positioning piece 6, and the lower end of the thermoelectric module 30 will not touch the TO tube holder 3. In addition, the positions of the left and right sides of the thermoelectric module 30 are limited, so that the upper part of the thermoelectric module 30 is more easily aligned with the thermoelectric module positioning slot 8.
[0062] A method for processing a thermoelectric module with a heat sink is used for processing using a thermoelectric module processing tool with a heat sink, and includes the following steps: S1, a TO tube holder 3 and a thermoelectric module positioning piece 6 are installed on a base 1, the pins 5 on the TO tube holder 3 are inserted and positioned correspondingly to the positioning holes 4 on the base 1, and the insertion holes 14 on the thermoelectric module positioning piece 6 are inserted and connected with the insertion columns 13; a positioning sleeve 15 is threadedly connected to the insertion column 13, and the lower end of the positioning sleeve 15 abuts against the thermoelectric module positioning piece 6.
[0063] S2, the lower welding surface of the thermoelectric module 30 is coated with flux and solder B is affixed, the driving ring 18 is rotated, the connecting column 11 is lifted upward, the thermoelectric module positioning piece 6 is lifted upward to a certain height, the thermoelectric module 30 with solder B is mounted on the two guide rods 34, and transferred to the welding position of the TO tube holder 3 along the guide rods 34. During the transfer process, the upper end of the thermoelectric module 30 will not touch the thermoelectric module positioning piece 6, and the lower end of the thermoelectric module 30 will not touch the TO tube holder 3. After reaching the position, the driving ring 18 is reversed to move the thermoelectric module positioning piece 6 downward, and the position of the thermoelectric module 30 is adjusted so that the thermoelectric module positioning slot 8 is fitted with the upper part of the thermoelectric module 30, and then the two guide rods 34 are removed, and the thermoelectric module 30 is lowered, so that the thermoelectric module 30 is installed at the welding position of the TO tube holder 3.
[0064] S3, installing the heat sink positioning piece 7 onto the base 1; the sleeve hole 16 on the heat sink positioning piece 7 is correspondingly sleeved and connected with the positioning sleeve 15.
[0065] S4, apply flux and solder A on the welding surface of the heat sink 31, install the heat sink 31 with solder A on the top of the thermoelectric module 30, and fit the heat sink positioning slot 9 with the heat sink 31.
[0066] S5, the pressing plate 10 presses the heat sink 31 and connects to the base 1; the pressing plate 10 is connected with the fastening screws 12, which are threadedly connected to the insertion column 13 at the upper end of the connecting column 11, and the pressing plate 10 is pressed against the top surface of the heat sink 31.
[0067] S6, sending the entire tooling into a heating furnace for heating and welding.
[0068] S7, after the welding is completed, the tooling is taken out, the pressing plate 10, the heat sink positioning piece 7, and the thermoelectric module positioning piece 6 are removed, and finally the thermoelectric module 30 with the heat sink 31 after welding is removed, and the flux is washed off with acetone after cooling.
[0069] When processing the thermoelectric module 30 with the heat sink 31, the heat sink 31, the thermoelectric module 30 and the TO tube seat 3 need to be welded together. Before welding, the heat sink 31, the thermoelectric module 30 and the TO tube seat 3 are clamped and positioned between the pressure plate 10 and the base 1 to prevent displacement during welding. The TO tube seat 3 is loaded on the base 1, and the TO tube seat 3 is positioned with the positioning hole 4; after the lower welding surface of the thermoelectric module 30 is coated with flux and solder is affixed, it is loaded to the welding position of the TO tube seat 3. At this time, the thermoelectric module positioning slot 8 on the thermoelectric module positioning sheet 6 is fitted and positioned with the thermoelectric module 30 to prevent the thermoelectric module 30 from moving laterally. After that, after applying flux and solder on the welding surface of the heat sink 31, it is loaded on the top surface of the thermoelectric module 30. At this time, the heat sink positioning slot 9 on the heat sink positioning sheet 7 is fitted and positioned with the heat sink 31. Finally, the pressing plate 10 is pressed onto the top surface of the heat sink 31, and the pressing plate 10 is connected to the base 1. At this time, the heat sink 31, the thermoelectric module 30, and the TO tube seat 3 are clamped between the pressing plate 10 and the base 1, realizing longitudinal positioning, and the positioning hole 4 realizes the transverse positioning of the TO tube seat 3, the thermoelectric module positioning slot 8 realizes the transverse positioning of the thermoelectric module 30, and the heat sink positioning slot 9 realizes the transverse positioning of the heat sink 31. Finally, the entire tooling is sent to a heating furnace for heating and welding, so that the thermoelectric module 30 with the heat sink 31 is welded and formed in one time, avoiding the risks brought by secondary welding, and ensuring the position, rotation angle and parallelism of the thermoelectric module 30 and the heat sink 31.
[0070] The above-described embodiments are only preferred solutions of the present invention and are not intended to limit the present invention in any form. Other variations and modifications are possible without exceeding the technical solutions described in the claims.
Claims
1. A thermoelectric module processing tool with a heat sink, characterized in that: It includes a base and a positioning mechanism, and the base is provided with a positioning hole adapted to the TO tube seat; the positioning mechanism includes a thermoelectric module positioning plate and a heat sink positioning plate, and the thermoelectric module positioning plate and the heat sink positioning plate are respectively provided with thermoelectric module positioning slots and heat sink positioning slots; the base is connected to a pressing plate, the thermoelectric module is placed between the TO tube seat and the heat sink, the TO tube seat is supported on the base, and the pressing plate presses the heat sink.
2. The thermoelectric module processing tool with heat sink according to claim 1 is characterized in that: A number of pins are arranged on the TO tube holder, and the positioning holes and the pins are adapted to each other.
3. The thermoelectric module processing tool with heat sink according to claim 1 is characterized in that: A connecting column is arranged on the base, and both the thermoelectric module positioning plate and the heat sink positioning plate are connected to the connecting column.
4. A thermoelectric module processing tool with a heat sink according to any one of claims 1 to 3, characterized in that: An extension portion is arranged at the lower edge of the thermoelectric module positioning slot, and an inner wall of the extension portion is arranged to be inclined outward from top to bottom.
5. The thermoelectric module processing tool with heat sink according to claim 3 is characterized in that: A lifting mechanism is connected between the lower part of the connecting column and the base. The lifting mechanism comprises a driving ring. The driving ring rotates to drive the connecting column to move up and down.
6. The thermoelectric module processing tool with heat sink according to claim 5 is characterized in that: A locking pin and a preload spring are installed on the driving ring, the preload spring abuts against the locking pin, a locking hole is arranged on the base, and the locking pin is inserted into the locking hole to realize locking and positioning of the driving ring.
7. The thermoelectric module processing tool with heat sink according to claim 5 is characterized in that: A push bar is arranged on the driving ring and the connecting column correspondingly, a push surface is arranged obliquely along the circumferential direction on the push bar, an abutment joint is arranged on the connecting column, the abutment joint is supported on the push surface, and a positioning spring is installed between the connecting column and the base.
8. The thermoelectric module processing tool with heat sink according to claim 5 is characterized in that: The side wall of the driving ring is provided with a spiral groove corresponding to the connecting column, the connecting column is connected with a guide column, and the end of the guide column is inserted into the spiral groove.
9. The thermoelectric module processing tool with heat sink according to claim 1 is characterized in that: Two guide rods are arranged above the base, and the thermoelectric module is mounted on the two guide rods.
10. A method for processing a thermoelectric module with a heat sink, characterized in that: The processing of the thermoelectric module with heat sink according to any one of claims 1 to 9 comprises the following steps: S1, installing the TO tube seat and the thermoelectric module positioning piece on the base; S2, applying flux and solder B on the lower welding surface of the thermoelectric module, installing the thermoelectric module with solder B on the welding position of the TO tube seat, and fitting the thermoelectric module positioning slot with the thermoelectric module; S3, installing the heat sink positioning piece on the base; S4, applying flux and solder A on the welding surface of the heat sink, installing the heat sink with solder A on the top of the thermoelectric module, and fitting the heat sink positioning slot with the heat sink; S5, pressing the heat sink with a pressing plate and connecting it to the base; S6, sending the entire tooling into a heating furnace for heating and welding.