A new energy vehicle non-ferrous metal high-thermal-conductivity aluminum alloy heat dissipation strip production forming and pouring device and method

Abstract

The application relates to a production forming pouring device and method for a new energy automobile non-ferrous high-thermal-conductivity aluminum alloy heat dissipation strip, which comprises a transfer cabinet and a treatment tank arranged in the transfer cabinet. A mounting cavity is arranged at the bottom of the transfer cabinet. The transfer cabinet can be driven by a linear driving module and moves between a melting holding furnace station and a pouring forming station. An openable and closable discharge port is arranged on the side of the transfer cabinet away from the linear driving module. When the transfer cabinet reaches the pouring forming station, the discharge port is opened, so that aluminum liquid in the treatment tank is poured into a heat dissipation strip mold. The blowing mode is dynamically adjusted in stages, is high in flexibility, can effectively optimize the bubble distribution form, improves the degassing and deslagging efficiency, makes the whole treatment process more efficient and uniform, ensures the purity of aluminum liquid finally poured into the heat dissipation strip forming mold, and provides effective guarantee for the final quality of the product.

Description

Technical Field

[0001] This invention relates to the field of manufacturing technology of non-ferrous metal materials for new energy vehicles, specifically a casting device and method for producing high thermal conductivity aluminum alloy heat sink strips for new energy vehicles. Background Technology

[0002] New energy vehicles, with their advantages of low pollution and high energy efficiency, are experiencing rapid development and widespread adoption, gradually becoming a new trend in the automotive industry. In new energy vehicles, heat dissipation components play a crucial role, and heat sinks are one of the core components of these components.

[0003] Heat sinks made of non-ferrous metals are favored for their good thermal conductivity and mechanical properties. Common materials include aluminum, copper, magnesium, and zinc. In actual production, considering factors such as thermal conductivity, economic cost, lightweight, and processing performance, aluminum alloy heat sinks remain the most widely used.

[0004] Aluminum alloy heat sinks are formed by pouring molten aluminum into a mold. The purity of the molten aluminum directly determines the quality and performance of the heat sink. The presence of gas and inclusions in the molten aluminum will have a severely detrimental effect on the forming process. Gas will form pores during the cooling and solidification process, which will damage the structural integrity of the heat sink, reducing its mechanical strength and thermal conductivity. Inclusions, on the other hand, will create defects inside the heat sink, affecting its surface quality and dimensional accuracy. Therefore, automated casting production lines must be equipped with degassing and slag removal systems.

[0005] Using inert gases to degas and remove slag from molten aluminum is an efficient and reliable method. Inert gases (such as argon or nitrogen) are chemically stable and do not react with molten aluminum. The basic principle is that by introducing inert gas into the molten aluminum, the rising bubbles adsorb gases and inclusions in the molten aluminum, thus carrying them to the surface and purifying the aluminum.

[0006] However, existing processing methods typically employ graphite rotors to break inert gases into bubbles. These rotors are usually installed in fixed positions within the molten aluminum processing tank, and their outlet sizes are pre-set. This fixed configuration limits the movement and location of the bubbles. This results in uneven agitation of the molten aluminum, difficulty in effectively aggregating inclusions, and a tendency for incomplete mixing and scattered inclusion distribution, thus affecting the purity of the molten aluminum and the quality of the final product. Furthermore, this fixed processing method cannot be dynamically adjusted according to the specific conditions of the molten aluminum, lacking flexibility and failing to meet the diverse needs of different stages in the molten aluminum processing, while also limiting the improvement of degassing and slag removal efficiency. Summary of the Invention

[0007] The purpose of this invention is to provide a casting apparatus and method for producing high thermal conductivity aluminum alloy heat sink strips for new energy vehicles, in order to solve the problems mentioned in the background art.

[0008] To achieve the above objectives, the present invention provides the following technical solution: A casting device for producing high thermal conductivity aluminum alloy heat sink strips for new energy vehicles includes a transfer cabinet and a processing tank inside the transfer cabinet. The bottom of the transfer cabinet is provided with an assembly chamber. The transfer cabinet can be driven by a linear drive module to move between the melting and holding furnace station and the casting station. The side of the transfer cabinet away from the linear drive module is inclined with an openable and closable discharge port. When the transfer cabinet reaches the casting station, the discharge port opens to allow the molten aluminum in the processing tank to be poured into the heat sink strip mold. The production and casting equipment for high thermal conductivity aluminum alloy heat sink strips for new energy vehicles also includes: The nozzle is located at the bottom of the treatment tank. The bottom of the nozzle is equipped with an upper shell and a lower shell, and a sealing partition is provided between the upper shell and the lower shell. The drive motor is installed in the assembly chamber. The output end of the drive motor is connected to a riser that extends into the processing tank. An assembly seat is provided at the end of the riser away from the drive motor. The riser is connected to the upper shell through a gas guiding mechanism and is also connected to a gas transmission mechanism for conveying inert gas located in the assembly chamber. The displacement drive mechanism located in the assembly chamber can drive the nozzle to move from the eccentric part of the treatment tank to the center, and trigger the rotation mechanism located in the upper and lower shells. The rotation mechanism can increase the conduction area of ​​the first through hole on the nozzle so that the bubbles generated after the nozzle completes the position switching are larger.

[0009] As a further aspect of the present invention: the mounting base is provided with a mounting groove, and the air guiding mechanism includes a first pipe fixed in the mounting groove, a second pipe that is sealed and slidably fitted with the first pipe, and a conduit connecting the first pipe and the riser. The second pipe is fixed to and connected to the upper shell.

[0010] As a further embodiment of the present invention: the gas transmission mechanism includes a ring body fixed in the assembly chamber and concentric with the riser, and a follower ring located on the inner side of the ring body and rotatably connected to the ring body in a sealed manner, wherein an annular cavity is formed between the outer wall of the follower ring and the inner wall of the ring body; The annular cavity is connected to a vent pipe located on the side of the transfer cabinet. The vent pipe is connected to an external pump body. Multiple branch pipes are equidistantly arranged along the circumference of the riser. The branch pipes pass through the follower ring and are fixed to the follower ring, thus connecting the annular cavity to the riser.

[0011] As a further embodiment of the present invention: the rotating mechanism includes a rotating structure disposed in the upper shell and the lower shell, and a transmission component disposed on the mounting base and connected to the rotating structure. When the nozzle switches positions, the transmission component is triggered, which can cause the rotating structure and the nozzle to move relative to each other.

[0012] As a further embodiment of the present invention: the rotating structure includes a vertical shaft that is rotatably mounted on the sealing partition, with its two ends located in the upper shell and the lower shell respectively. A disk is provided at the upper end of the vertical shaft, and the disk is slidably fitted with the top wall of the nozzle. The disk is provided with a plurality of second through holes. When the transmission component is triggered, it can cause the disk to rotate relative to the nozzle, thereby changing the overlapping area of ​​the first through hole and the second through hole.

[0013] As a further embodiment of the present invention: the mounting base is further provided with mounting holes, the transmission assembly includes a cylinder fixed in the mounting holes and a transmission shaft that is sealed and slidably fitted with the cylinder, one end of the transmission shaft extends into the lower shell and is sealed and rotatably connected to the lower shell, and is also connected to the end of the vertical shaft away from the disk through a bevel gear set; The other end of the drive shaft is located inside the cylinder, and two sets of sliding fit structures are provided between it and the inner wall of the cylinder.

[0014] As a further embodiment of the present invention: the sliding fit structure includes a protrusion fixed on the outer wall of the transmission shaft and a sliding groove on the inner wall of the cylinder. The sliding groove is spirally arranged and adapted to the protrusion. The protrusion extends into the sliding groove and is slidably connected to the inner wall of the cylinder. When the nozzle moves from the eccentric part of the treatment tank towards the center, the protrusion slides along the groove, causing the disk to rotate, and the overlapping area of ​​the first through hole and the second through hole increases.

[0015] As a further embodiment of the present invention: the displacement drive mechanism includes a sliding sleeve that is sealed and slidably sleeved on the riser and sealed and slidably connected to the processing tank. The sliding sleeve extends into the processing tank, and one end is connected to two sets of power components provided in the assembly chamber. The other end is provided with a connecting plate. Two connecting rods are provided between the connecting plate and the lower shell. The two ends of the connecting rods are respectively hinged to the connecting plate and the lower shell.

[0016] As a further embodiment of the present invention: the power assembly includes a guide plate fixed in the assembly chamber, a slider slidably fitted in the guide plate, and a cylinder rotatably installed in the assembly chamber. The movable end of the cylinder is hinged to one side of the slider, and a cross arm is provided on the other side of the slider. The cross arm is rotatably connected to the sliding sleeve.

[0017] As a further aspect of the present invention: a method for molding and casting high thermal conductivity aluminum alloy heat sink strips for new energy vehicles, using the aforementioned molding and casting device, includes the following steps: Step 1: Melting the raw materials. The aluminum alloy raw materials are melted in the melting and holding furnace station. Step two, aluminum molten metal transfer: the transfer cabinet arrives at the melting and holding furnace station to receive the aluminum molten metal; Step 3: Degassing and slag removal. The nozzles generate inert gas bubbles at the eccentric and central positions of the treatment tank. Step 4, casting and molding: The transfer cabinet arrives at the casting and molding station, the discharge port opens, and the molten aluminum in the processing tank is poured into the heat sink forming mold. Step 5: After molding, demold to obtain the finished product.

[0018] Compared with the prior art, the beneficial effects of the present invention are: This invention provides a nozzle installed in a processing tank. The nozzle's position can be switched between the eccentric and central positions of the processing tank, and the conduction area of ​​its first through hole can automatically change according to the position. That is, when the nozzle moves from the eccentric position to the central position of the processing tank, the conduction area of ​​the first through hole increases, thereby causing the nozzle to generate small bubbles at the eccentric position of the processing tank and large bubbles at the central position of the processing tank. Among them, blowing small bubbles at the eccentric position can form a rotating flow field, achieve a stirring effect, and facilitate the aggregation of inclusions. Its main benefit is its promoting effect on the stirring of aluminum liquid and the aggregation of inclusions. Blowing large bubbles at the center position can form strong vertical convection, and its main benefit is its promoting effect on the floating of inclusions and the discharge of gas. Therefore, this phased and dynamically adjusted blowing method is highly flexible, can effectively optimize the bubble distribution, improve the degassing and slag removal efficiency, make the whole process more efficient and uniform, and ensure the purity of the molten aluminum finally poured into the heat sink forming mold, thus providing an effective guarantee for the final quality of the product. Attached Figure Description

[0019] Figure 1 An isometric view of one embodiment of a casting apparatus for producing high thermal conductivity aluminum alloy heat sink strips for new energy vehicles.

[0020] Figure 2 A schematic diagram of one embodiment of a casting apparatus for producing high thermal conductivity aluminum alloy heat sink strips for new energy vehicles.

[0021] Figure 3 This is a schematic diagram of another aspect of an embodiment of a casting device for producing high thermal conductivity aluminum alloy heat sink strips for new energy vehicles.

[0022] Figure 4 This is a schematic diagram of the structure of a casting device for producing high thermal conductivity aluminum alloy heat sink strips for new energy vehicles, taken from another angle.

[0023] Figure 5 A schematic diagram of the internal structure of the processing tank in one embodiment of the casting device for producing high thermal conductivity aluminum alloy heat sink strips for new energy vehicles.

[0024] Figure 6 A schematic diagram of the internal structure of the assembly chamber in one embodiment of a casting device for producing high thermal conductivity aluminum alloy heat sink strips for new energy vehicles.

[0025] Figure 7 for Figure 6 Enlarged view of the structure at point A in the middle.

[0026] Figure 8 A schematic diagram illustrating the connection status of the riser, the air guiding mechanism, and the gas transmission mechanism in one embodiment of the casting device for producing high thermal conductivity aluminum alloy heat sink strips for new energy vehicles.

[0027] Figure 9 An exploded view of the displacement drive mechanism in one embodiment of a casting device for producing high thermal conductivity aluminum alloy heat sink strips for new energy vehicles.

[0028] Figure 10 A top view of the nozzle in one embodiment of a casting device for producing high thermal conductivity aluminum alloy heat sink strips for new energy vehicles.

[0029] Figure 11 An exploded view of the rotating mechanism in one embodiment of a casting apparatus for producing high thermal conductivity aluminum alloy heat sink strips for new energy vehicles.

[0030] Figure 12 for Figure 11 A structural diagram from another angle.

[0031] In the diagram: 1. Transfer cabinet; 101. Assembly chamber; 102. Discharge port; 2. Processing tank; 3. Nozzle; 301. First through hole; 4. Drive motor; 5. Riser; 6. First fitting; 7. Second fitting; 8. Guide tube; 9. Assembly base; 901. Assembly groove; 902. Assembly hole; 10. Disc; 1001. Second through hole; 11. Upper shell; 12. Lower shell; 13. Sealing diaphragm; 14. Riser 15. Shaft; 16. Bevel gear set; 17. Drive shaft; 18. Protruding post; 19. Cylinder; 20. Sliding groove; 21. Sliding sleeve; 22. Connecting plate; 23. Connecting rod; 24. Guide plate; 25. Slider; 26. Cylinder; 27. Cross arm; 28. Ring body; 29. ​​Annular cavity; 20. Vent pipe; 21. Branch pipe; 22. Follower ring; 23. Linear drive module; 34. Hydraulic cylinder; 35. Valve plate. Detailed Implementation

[0032] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0033] Furthermore, elements in this invention are referred to as being "fixed to" or "set on" another element, which may be directly on the other element or may also include an intervening element. When an element is considered to be "connected" to another element, it may be directly connected to the other element or may also include an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementations.

[0034] Please see Figures 1-12 In this embodiment of the invention, a casting device for producing high thermal conductivity aluminum alloy heat sink strips for new energy vehicles includes a transfer cabinet 1 and a processing tank 2 disposed in the transfer cabinet 1. The bottom of the transfer cabinet 1 is provided with an assembly chamber 101. The transfer cabinet 1 can be driven by a linear drive module 29 to move between the melting and holding furnace station and the casting station. The side of the transfer cabinet 1 away from the linear drive module 29 is inclined to have an openable and closable discharge port 102. When the transfer cabinet 1 reaches the casting station, the discharge port 102 is opened so that the molten aluminum in the processing tank 2 is poured into the heat sink strip mold. It should be noted that the linear drive module 29 is an application of existing technology. Based on the drive principle of servo motor and lead screw, it utilizes the stability of threaded drive to achieve stable switching of transfer cabinet 101 between melting and holding furnace station and casting and molding station, thereby forming a casting transfer route. Secondly, in specific implementation, the installation of the linear drive module 29 needs to be at a suitable height, and the discharge port 102 is close to the bottom of the processing tank 2. The side of the transfer cabinet 1 is also provided with a switching mechanism for controlling the opening and closing of the discharge port 102. The switching mechanism includes two hydraulic cylinders 30 fixed to the side of the transfer cabinet 1 and a valve plate 31 fixedly connected to the movable ends of the two hydraulic cylinders 30. The valve plate 31 is adapted to the discharge port 102. The hydraulic cylinders 30 control the valve plate 31 to rise and fall, thereby adjusting the degree of conduction of the discharge port 102. That is, after the transfer cabinet 1 reaches the casting and molding station, the hydraulic cylinders 30 drive the valve plate 31 to rise, so that the discharge port 102 opens. Then, the molten aluminum in the processing tank 2 can be poured into the heat sink mold. In addition, a cover (not labeled in the figure) is movably installed on the upper part of the transfer cabinet 1. The cover is driven to rise and fall by two other sets of linear drive modules (not labeled in the figure) installed on the transfer cabinet 1. When the transfer cabinet 1 reaches the melting and holding furnace station, the cover is in an upward state. Then, after the aluminum outlet of the melting and holding furnace is opened, the aluminum can flow into the processing tank 2.

[0035] The production and casting equipment for high thermal conductivity aluminum alloy heat sink strips for new energy vehicles also includes: The nozzle 3 is located at the bottom of the treatment tank 2. The bottom of the nozzle 3 is provided with an upper shell 11 and a lower shell 12, and a sealing partition 13 is provided between the upper shell 11 and the lower shell 12. The drive motor 4 is installed in the assembly chamber 101. The output end of the drive motor 4 is connected to a riser 5 that extends into the processing tank 2. The end of the riser 5 away from the drive motor 4 is provided with an assembly seat 9. The riser 5 is connected to the upper shell 11 through a gas guiding mechanism and is also connected to a gas transmission mechanism provided in the assembly chamber 101 for conveying inert gas. The displacement drive mechanism located in the assembly chamber 101 can drive the nozzle 3 to move from the eccentric part of the treatment tank 2 to the center, and trigger the rotation mechanism located in the upper shell 11 and the lower shell 12. The rotation mechanism can increase the conduction area of ​​the first through hole 301 on the nozzle 3, so that the bubbles generated after the nozzle 3 completes the position switching are larger.

[0036] It should be noted that the inert gas can be argon or nitrogen. This application does not make a specific limitation on this, and the choice can be made according to actual needs. Specifically, regarding the treatment method of molten aluminum in the treatment tank 2, firstly, the nozzle 3 is positioned eccentrically within the treatment tank 2. A gas transmission mechanism transmits inert gas to the riser 5. Subsequently, the inert gas enters the upper shell 11 through the gas guiding mechanism and exits through the first through-hole 301, discharging air bubbles. At this point, the air bubbles positioned eccentrically within the treatment tank 2 effectively drive the flow of molten aluminum, forming a rotating flow field. This flow field helps to gradually gather inclusions to the rotation center area. Simultaneously, the drive motor 4 drives the riser 5 to rotate, causing the nozzle 3 to perform circular motion within the treatment tank 2, ensuring comprehensive treatment of the molten aluminum in the treatment tank 2. Subsequently, the displacement drive mechanism operates, driving the nozzle 3 from the eccentric position of the processing tank 2 to the center position. During this process, the rotation mechanism is triggered, which increases the conduction area of ​​the first through hole 301. Therefore, compared to the eccentric position of the processing tank 2, the bubbles generated after the nozzle 3 reaches the center of the processing tank 2 are larger, and the large bubbles can form strong vertical convection. This convection can effectively push the inclusions gathered at the center of rotation upwards, allowing them to reach the surface of the molten aluminum more quickly. It should be noted that, regarding the small bubbles at the eccentric position and the large bubbles at the center of the treatment tank 2, the main advantage of blowing small bubbles at the eccentric position lies in its promoting effect on the stirring of the molten aluminum and the aggregation of inclusions. When the nozzle 3 is located at the eccentric position and the conductive area of ​​the first through hole 301 is small, the generated small bubbles will create a rotating flow pattern in the molten aluminum. Specifically, as the small bubbles rise, they will drive the surrounding molten aluminum to flow, forming a rotating flow field. This rotating flow field can create a similar stirring effect in the molten aluminum, thereby enabling the gas and inclusions in the molten aluminum to be distributed more evenly and promoting the aggregation of inclusions towards the center of rotation. This rotating stirring effect helps to improve the uniformity of the molten aluminum, enhances the stirring effect, and is also conducive to the aggregation of inclusions, creating more favorable conditions for the subsequent degassing and slag removal processes. The main advantage of blowing large bubbles at the center lies in their ability to promote the floating of inclusions and the expulsion of gas. When the nozzle 3 moves to the center of the processing tank 2 and the air outlet increases, the generated large bubbles can create strong vertical convection. This convection effectively pushes the inclusion clusters gathered at the center of rotation upwards, allowing them to reach the surface of the molten aluminum more quickly, thus facilitating subsequent removal operations. Simultaneously, the large bubbles carry more gas during their ascent, further promoting the expulsion of gas from the molten aluminum, ensuring complete removal of gas and inclusions, thereby significantly improving the purity of the molten aluminum and the quality of the final product.

[0037] Please refer to it again. Figure 9 , Figure 10 as well as Figure 11The mounting base 9 is provided with an assembly groove 901. The air guiding mechanism includes a first pipe 6 fixed in the assembly groove 901, a second pipe 7 that is sealed and slidably fitted with the first pipe 6, and a conduit 8 that connects the first pipe 6 and the riser 5. The second pipe 7 is fixed and connected to the upper shell 11.

[0038] Please refer to it again. Figure 8 and Figure 9 The gas transmission mechanism includes a ring 25 fixed in the assembly chamber 101 and concentric with the riser 5, and a follower ring 28 located on the inner side of the ring 25 and rotatably connected to the ring 25 in a sealed manner. An annular cavity 2501 is formed between the outer wall of the follower ring 28 and the inner wall of the ring 25. The annular cavity 2501 is connected to a vent pipe 26 located on the side of the transfer cabinet 1. The vent pipe 26 is connected to an external pump body. Multiple branch pipes 27 are equidistantly arranged along the circumference of the riser 5. The branch pipes 27 pass through the follower ring 28 and are fixed to the follower ring 28, thereby connecting the annular cavity 2501 to the riser 5.

[0039] Furthermore, in actual operation, the external pump body pumps inert gas through the vent pipe 26. The inert gas enters the annular cavity 2501, then enters the riser pipe 5 through the branch pipe 27, and then enters the upper shell 11 through the conduit 8, the first fitting 6 and the second fitting 7 in sequence, and the air bubbles are discharged through the first through hole 301. When the nozzle 3 is located at an eccentric position in the treatment tank 2, the drive motor 4 drives the riser 5 to rotate, so that the nozzle 3 makes a circular motion in the treatment tank 2, thereby ensuring the comprehensiveness of the treatment. During this process, the riser 5 drives the follower ring 28 to rotate relative to the ring body 25 through multiple branch pipes 27. The arrangement of the ring body 25, the follower ring 28 and the multiple branch pipes 27 can ensure the smooth transmission of inert gas under the premise that the nozzle 3 moves normally, thus providing support for the staged and dynamically adjusted blowing treatment method of this application.

[0040] Please refer to it again. Figure 11 and Figure 12The rotating mechanism includes a rotating structure disposed in the upper shell 11 and the lower shell 12, and a transmission component disposed on the mounting base 9 and connected to the rotating structure. When the nozzle 3 switches positions, the transmission component is triggered, which can cause the rotating structure to move relative to the nozzle 3. The rotating structure includes a vertical shaft 14 sealed and rotatably mounted on the sealing partition 13. The two ends of the vertical shaft 14 are respectively located in the upper shell 11 and the lower shell 12. A disk 10 is provided at the upper end of the vertical shaft 14. The disk 10 is sealed and slidably fitted with the top wall of the nozzle 3, and the disk 10 is provided with a plurality of second through holes 1001. When the transmission component is triggered, it can cause the disk 10 to rotate relative to the nozzle 3, so that the overlapping area of ​​the first through hole 301 and the second through hole 1001 changes.

[0041] It should be noted that when the overlapping area of ​​the first through hole 301 and the second through hole 1001 is large, that is, the passage area of ​​inert gas increases, allowing more gas to enter the water at the same time, reducing the dispersion of gas in the water, which helps to form larger bubbles. For example, in the case of an aquarium's oxygen pump or fountain equipment, a larger nozzle orifice diameter is usually used to generate larger bubbles.

[0042] The mounting base 9 is also provided with mounting holes 902. The transmission assembly includes a cylinder 17 fixed in the mounting holes 902 and a transmission shaft 16 that is sealed and slidably fitted with the cylinder 17. One end of the transmission shaft 16 extends into the lower shell 12 and is rotatably connected to the lower shell 12 in a sealed manner. It is also connected to the end of the vertical shaft 14 away from the disk 10 through a bevel gear set 15. The other end of the transmission shaft 16 is located inside the cylinder 17 and has two sets of sliding fit structures between it and the inner wall of the cylinder 17.

[0043] In detail, the bevel gear set 15 is located in the lower shell 12, and includes a first bevel gear fixedly installed on one end of the transmission shaft 16 located inside the lower shell 12 and a second bevel gear fixedly installed on the vertical shaft 14 away from the disk 10, and the first bevel gear meshes with the second bevel gear.

[0044] The sliding fit structure includes a protrusion 1601 fixed on the outer wall of the drive shaft 16 and a groove 1701 on the inner wall of the cylinder 17. The groove 1701 is spirally arranged and adapted to the protrusion 1601. The protrusion 1601 extends into the groove 1701 and slides in connection with the inner wall of the cylinder 17. When the nozzle 3 moves from the eccentric part of the treatment tank 2 to the center, the protrusion 1601 slides along the groove 1701, causing the disc 10 to rotate, and the overlapping area of ​​the first through hole 301 and the second through hole 1001 increases.

[0045] When the displacement drive mechanism drives the nozzle 3 to move from the eccentric part of the treatment tank 2 towards the center, the second pipe 7 slides towards the inside of the first pipe 6, and the drive shaft 16 slides towards the inside of the cylinder 17. Correspondingly, the protrusion 1601 slides with the cylinder 17 through the sliding groove 1701. The drive shaft 16 rotates relative to the cylinder 17. Furthermore, the drive shaft 16 drives the vertical shaft 14 to rotate through the bevel gear set 15, so that the disc 10 rotates relative to the nozzle 3 at a certain angle. The overlapping area of ​​the first through hole 301 and the second through hole 1001 increases, that is, the conduction area of ​​the first through hole 301 increases. When the nozzle 3 is located at the center of the treatment tank 2, it can generate larger bubbles, which effectively promotes the floating of impurities and the discharge of gas.

[0046] Please refer to it again. Figure 7 , Figure 8 as well as Figure 9 The displacement drive mechanism includes a sliding sleeve 18 that is sealed and slidably sleeved on the riser 5 and sealed and slidably connected to the processing tank 2. The sliding sleeve 18 extends into the processing tank 2, and one end is connected to two sets of power components provided in the assembly chamber 101. The other end is provided with a connecting plate 19. Two connecting rods 20 are provided between the connecting plate 19 and the lower shell 12. The two ends of the connecting rods 20 are respectively hinged to the connecting plate 19 and the lower shell 12.

[0047] It should be noted that a through hole is provided at the bottom center of the processing tank 2 for the riser 5 and the sliding sleeve 18 to pass through. The sliding sleeve 18 is sealed and slidably fitted with the riser 5, and the sliding sleeve 18 is sealed and slidably connected with the processing tank 2. Secondly, the purpose of the connecting plate 19 is to control the connection point of the connecting rod 20 away from the lower shell 12, so that the point can be deviated from the side of the riser 5 facing the nozzle 3. Thus, when the power assembly works, it can ensure that the sliding sleeve 18 can smoothly pull the nozzle 3 to the eccentric position of the treatment tank 2 through the connecting rod 20.

[0048] The power assembly includes a guide plate 21 fixed in the assembly chamber 101, a slider 22 slidably fitted on the guide plate 21, and a cylinder 23 rotatably installed in the assembly chamber 101. The movable end of the cylinder 23 is hinged to one side of the slider 22, and a cross arm 24 is provided on the other side of the slider 22. The cross arm 24 is rotatably connected to the sliding sleeve 18.

[0049] Specifically, when it is necessary to change the position of the nozzle 3 from the eccentric part of the treatment tank 2 to the center, the movable end of the cylinder 23 extends, which drives the slider 22 to slide downward on the guide plate 21. Then, the slider 22 drives the sliding sleeve 18 to slide downward on the riser 5 through the cross arm 24. The sliding sleeve 18 then pulls the lower shell 12, the upper shell 11 and the nozzle 3 toward the mounting base 9 through the connecting plate 19 and the connecting rod 20, so that the nozzle 3 reaches the center of the treatment tank 2, realizing the dynamic adjustment of the nozzle 3, so as to realize a flexible blowing method of staged and dynamic adjustment.

[0050] As another embodiment of the present invention, a method for molding and casting high thermal conductivity aluminum alloy heat sink strips for new energy vehicles is also proposed, which uses the aforementioned molding and casting device and includes the following steps: Step 1: Melting the raw materials. High-purity aluminum alloy raw materials are melted in the melting and holding furnace station. Step 2: Transfer of molten aluminum. Transfer cabinet 1 arrives at the melting and holding furnace station to receive molten aluminum. Step 3, degassing and slag removal: Nozzle 3 generates inert gas bubbles at the eccentric and central positions of the treatment tank 2. Step 4, casting and molding: Transfer cabinet 1 arrives at the casting and molding station, discharge port 102 opens, and molten aluminum in processing tank 2 is poured into the heat sink forming mold. Step 5: After molding, demold to obtain the finished product.

[0051] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0052] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A casting device for producing high thermal conductivity aluminum alloy heat sink strips for new energy vehicles, comprising a transfer cabinet and a processing tank located inside the transfer cabinet. The bottom of the transfer cabinet is provided with an assembly chamber. The transfer cabinet can be driven by a linear drive module to move between the melting and holding furnace station and the casting station. The side of the transfer cabinet away from the linear drive module is inclined with an openable and closable discharge port. When the transfer cabinet reaches the casting station, the discharge port is opened so that the molten aluminum in the processing tank is poured into the heat sink strip mold. Its features are, Also includes: The nozzle is located at the bottom of the treatment tank. The nozzle has a first through hole. The bottom of the nozzle has an upper shell and a lower shell, and a sealing partition is provided between the upper shell and the lower shell. A drive motor is installed in the assembly chamber. The output end of the drive motor is connected to a riser that extends into the treatment tank. An assembly seat is provided at the end of the riser away from the drive motor. The riser is connected to the upper shell through a gas guiding mechanism and is also connected to a gas transmission mechanism located in the assembly chamber for conveying inert gas. The nozzle is located at the eccentric position of the treatment tank. The gas transmission mechanism transmits inert gas to the riser. Then, the inert gas enters the upper shell through the gas guiding mechanism and discharges bubbles through the first through hole. The displacement drive mechanism located in the assembly chamber can drive the nozzle to move from the eccentric part of the treatment tank to the center, and trigger the rotation mechanism located in the upper and lower shells. The rotation mechanism can increase the conduction area of ​​the first through hole on the nozzle so that the bubbles generated after the nozzle completes the position switching are larger.

2. The casting apparatus for producing high thermal conductivity aluminum alloy heat sink strips for new energy vehicles according to claim 1, characterized in that, The mounting base is provided with an assembly groove. The air guiding mechanism includes a first pipe fixed in the assembly groove, a second pipe that is sealed and slidably fitted with the first pipe, and a conduit connecting the first pipe and the riser. The second pipe is fixed to and connected to the upper shell.

3. The casting apparatus for producing high thermal conductivity aluminum alloy heat sink strips for new energy vehicles according to claim 2, characterized in that, The gas transmission mechanism includes a ring body fixed in the assembly chamber and concentric with the riser, and a follower ring located on the inner side of the ring body and rotatably and sealingly connected to the ring body. An annular cavity is formed between the outer wall of the follower ring and the inner wall of the ring body. The annular cavity is connected to a vent pipe located on the side of the transfer cabinet. The vent pipe is connected to an external pump body. Multiple branch pipes are equidistantly arranged along the circumference of the riser. The branch pipes pass through the follower ring and are fixed to the follower ring, thus connecting the annular cavity to the riser.

4. The casting apparatus for producing high thermal conductivity aluminum alloy heat sink strips for new energy vehicles according to claim 1, characterized in that, The rotating mechanism includes a rotating structure disposed in the upper shell and the lower shell, and a transmission component disposed on the mounting base and connected to the rotating structure. When the nozzle changes position, the transmission component is triggered, which can cause the rotating structure to move relative to the nozzle.

5. The casting apparatus for producing high thermal conductivity aluminum alloy heat sink strips for new energy vehicles according to claim 4, characterized in that, The rotating structure includes a vertical shaft that is rotatably mounted on the sealing partition. The two ends of the vertical shaft are located in the upper shell and the lower shell, respectively. A disk is provided at the upper end of the vertical shaft. The disk is slidably fitted with the top wall of the nozzle. The disk is provided with a plurality of second through holes. When the transmission component is triggered, it can cause the disk to rotate relative to the nozzle, thereby changing the overlapping area of ​​the first through hole and the second through hole.

6. The casting apparatus for producing high thermal conductivity aluminum alloy heat sink strips for new energy vehicles according to claim 5, characterized in that, The mounting base is also provided with mounting holes. The transmission assembly includes a cylinder fixed in the mounting holes and a transmission shaft that is sealed and slidably fitted with the cylinder. One end of the transmission shaft extends into the lower shell and is sealed and rotatably connected to the lower shell. It is also connected to the end of the vertical shaft away from the disc through a bevel gear set. The other end of the drive shaft is located inside the cylinder, and two sets of sliding fit structures are provided between it and the inner wall of the cylinder.

7. The casting apparatus for producing high thermal conductivity aluminum alloy heat sink strips for new energy vehicles according to claim 6, characterized in that, The sliding fit structure includes a protrusion fixed on the outer wall of the drive shaft and a sliding groove on the inner wall of the cylinder. The sliding groove is spirally arranged and adapted to the protrusion. The protrusion extends into the sliding groove and is slidably connected to the inner wall of the cylinder. When the nozzle moves from the eccentric part of the treatment tank towards the center, the protrusion slides along the groove, causing the disk to rotate, and the overlapping area of ​​the first through hole and the second through hole increases.

8. The casting apparatus for producing high thermal conductivity aluminum alloy heat sink strips for new energy vehicles according to claim 1, characterized in that, The displacement drive mechanism includes a sliding sleeve that is sealed and slidably fitted on the riser and slidably connected to the processing tank. The sliding sleeve extends into the processing tank, and one end is connected to two sets of power components located in the assembly chamber. The other end is provided with a connecting plate. Two connecting rods are provided between the connecting plate and the lower shell. The two ends of the connecting rods are respectively hinged to the connecting plate and the lower shell.

9. The casting apparatus for producing high thermal conductivity aluminum alloy heat sink strips for new energy vehicles according to claim 8, characterized in that, The power assembly includes a guide plate fixed in the assembly chamber, a slider slidably fitted in the guide plate, and a cylinder rotatably installed in the assembly chamber. The movable end of the cylinder is hinged to one side of the slider, and a cross arm is provided on the other side of the slider. The cross arm is rotatably connected to the sliding sleeve.

10. A method for forming and casting high thermal conductivity aluminum alloy heat sink strips for new energy vehicles, using the forming and casting apparatus as described in claim 1, characterized in that... Includes the following steps: Step 1: Melting the raw materials. The aluminum alloy raw materials are melted in the melting and holding furnace station. Step two, aluminum molten metal transfer: the transfer cabinet arrives at the melting and holding furnace station to receive the aluminum molten metal; Step 3: Degassing and slag removal. The nozzles generate inert gas bubbles at the eccentric and central positions of the treatment tank. Step 4, casting and molding: The transfer cabinet arrives at the casting and molding station, the discharge port opens, and the molten aluminum in the processing tank is poured into the heat sink forming mold. Step 5: After molding, demold to obtain the finished product.

Images