A graphene electric heating tube for new energy vehicles and a welding device thereof

Abstract

The application relates to the technical field of new energy vehicles, and discloses a graphene electric heating pipe for a new energy vehicle and a welding device thereof, which comprises a graphene electric heating pipe body, water nozzles are sealingly connected to the two ends of the graphene electric heating pipe body, an electrode busbar is fixed to the surface of the graphene electric heating pipe body, electrode pads are arranged on the surface of the graphene electric heating pipe body, and electrode sheets connected with the electrode pads are arranged on the electrode busbar. The graphene electric heating pipe assembly uses graphene as a heating material in a new energy vehicle, and compared with a traditional silver-palladium thick film heating material, the graphene electric heating pipe assembly has better heating effect, the two ends are sealed through the sealing water nozzles, the cooling liquid and the external circuit are isolated, the risk of liquid leakage and electric leakage is reduced, and the safety is improved.

Description

Technical Field

[0001] This invention relates to the field of new energy vehicle technology, specifically to a graphene electric heating tube for new energy vehicles and its welding device. Background Technology

[0002] Currently, the core heating elements of water heaters commonly used in new energy vehicles are mainly PTC heating packs and thick-film heating plates. PTC heating packs: The main material is barium titanate, doped with rare earth metal ions. They consist of PTC ceramic sheets coated with silver paste electrodes on both sides, copper electrode sheets attached, and an outer layer of PI insulating thermally conductive film. Heat is transferred to the coolant through multiple layers of dielectric material and then through an aluminum base. Thick-film heating plates: The substrate is a 4-series stainless steel plate, on which sintered insulating dielectric paste, conductive silver paste, silver-palladium thick-film resistive paste, and encapsulation paste are printed and bonded. This ultimately forms a heating plate, with silver-palladium as the core material of its heating layer. Current passes through the silver-palladium thick-film resistive layer to generate heat in the thick-film heating plate, and then directly heats the coolant through the metal substrate plate.

[0003] Therefore, existing PTC heating packs and thick-film heating plates have some problems in use. For example, PTC heating packs require multiple layers of medium and an aluminum base to transfer heat to the coolant, and thick-film heating plates also require a relatively thick metal substrate to transfer heat to the coolant. Both have significant heat transfer lag, resulting in slow heat transfer efficiency. Therefore, it is necessary to design a graphene heating tube for new energy vehicles to solve the above problems.

[0004] However, when using graphene heating tubes, it is necessary to weld the electrode plates on the electrode busbar to the electrode pads. In the existing technology, the electrode busbar may not be able to guarantee that it is in the same position and orientation every time after installation, making it difficult to calibrate the position when welding the electrode plates to the electrode pads, which affects the welding efficiency and consistency. Summary of the Invention

[0005] This invention provides a graphene heating tube for new energy vehicles and its welding device. By using graphene as the heating material in the graphene heating tube assembly in new energy vehicles, heat can be directly transferred to the coolant, solving the problem of slow heat transfer efficiency mentioned in the background art.

[0006] The present invention provides the following technical solution: a graphene electric heating tube for new energy vehicles, comprising a graphene electric heating tube body, both ends of the graphene electric heating tube body are sealed and connected to water nozzles, an electrode busbar is fixed on the surface of the graphene electric heating tube body, an electrode pad is provided on the surface of the graphene electric heating tube body, and an electrode sheet connected to the electrode pad is provided on the electrode busbar.

[0007] A welding device for graphene heating tubes for new energy vehicles includes a base, a positioning plate fixed on the base for fixing the water nozzle, and an adjustable welding robot on the surface of the base for welding the electrode sheet and the electrode pad.

[0008] A side plate is fixed on the base, and an adjustment plate is slidably disposed on the top of the side plate. An adjustment component for moving the adjustment plate is disposed on the top of the side plate, and a clamping calibration plate is slidably disposed on the lower surface of the adjustment plate. The clamping calibration plate automatically calibrates the welding position of the electrode sheet and the electrode pad by clamping and positioning the electrode busbar.

[0009] As an optional embodiment of the welding device for graphene heating tubes for new energy vehicles described in this invention, a slide rail is fixed on the base, a movable seat is slidably arranged on the slide rail, the welding robot is fixed on the movable seat, and a servo electric cylinder for pushing the movable seat to slide on the slide rail is fixed on the base.

[0010] As an optional embodiment of the welding device for graphene heating tubes for new energy vehicles according to the present invention, the adjustment assembly includes a bidirectional lead screw rotatably connected to the side plate, an adjustment plate threadedly connected to the bidirectional lead screw, a servo motor connected to the bidirectional lead screw fixed on the surface of the side plate, and a guide rod fixed on the top of the side plate, the guide rod passing through the adjustment plate and slidably connected to the adjustment plate.

[0011] As an optional embodiment of the welding device for graphene heating tubes for new energy vehicles according to the present invention, the clamping calibration plate is elastically disposed inside the adjusting plate, a sliding rod is fixed to the top of the clamping calibration plate, a sliding groove for the sliding rod to slide is provided inside the adjusting plate, a limiting ball is fixed to the top of the sliding rod, an inclined groove is provided inside the sliding groove, and the limiting ball slides in the inclined groove, thereby driving the clamping calibration plate to move downward relative to the adjusting plate.

[0012] As an optional embodiment of the welding device for graphene heating tubes for new energy vehicles described in this invention, a clamping column is fixed on the lower surface of the clamping calibration plate. The clamping column moves downward through the clamping calibration plate to press the electrode sheet against the surface of the electrode pad.

[0013] As an optional solution for the welding device of the graphene electric heating tube for new energy vehicles described in this invention, the bottom of the adjusting plate is provided with a movable groove, a spring is provided inside the movable groove, a movable plate is fixed to the end of the spring, the movable plate is slidably connected to the surface of the clamping calibration plate, and a first telescopic rod is fixed between the movable plate and the inner wall of the movable groove.

[0014] As an optional solution for the welding device of the graphene electric heating tube for new energy vehicles described in this invention, a fixing plate is fixed on the outer surface of the clamping calibration plate, a track groove is opened on the lower surface of the fixing plate, a nozzle is slidably arranged in the track groove, and a rotating shaft for driving the nozzle to rotate is rotatably arranged inside the fixing plate.

[0015] When the rotating shaft drives the nozzle to rotate, it slides along the track groove, so that the nozzle sprays anti-oxidation agent along the weld seam of the electrode sheet and the electrode pad.

[0016] As an optional embodiment of the welding device for graphene electric heating tubes for new energy vehicles described in this invention, a second telescopic rod is fixed between the rotating shaft and the nozzle, a gear is fixed at the end of the rotating shaft, a toothed plate that meshes with the gear is slidably arranged inside the fixing plate, and an electric push rod for driving the toothed plate to move is fixed on the outer surface of the fixing plate.

[0017] As an optional embodiment of the welding device for graphene electric heating tubes for new energy vehicles described in this invention, a material box for storing antioxidants is fixed on the outer surface of the adjustment plate, and a material conveying pipe is connected to the bottom of the material box, with the bottom end of the material conveying pipe connected to the nozzle.

[0018] The present invention has the following beneficial effects:

[0019] 1. This graphene heating element for new energy vehicles uses graphene as the heating material in the heating element assembly. The graphene heating element has a wall thickness of 0.8-1mm, which can directly transfer heat to the coolant, reducing heat transfer lag and making the heating efficiency faster. Compared with traditional silver-palladium thick film heating materials, using graphene as the heating material is more economical. In addition, the two ends of the graphene heating element are equipped with sealing water nozzles, which can achieve a seal, ensure the isolation of coolant and external circuits, reduce the risk of leakage and electric shock, and improve safety.

[0020] 2. The welding device for the graphene heating element used in new energy vehicles addresses the potential positional deviation during the welding of the electrode sheet and electrode pads. Through a clamping calibration plate, the electrode busbar is clamped and fixed, maintaining a vertically upward orientation. This clamping and fixing mechanism automatically calibrates the electrode busbar, ensuring it remains vertically upright after each fixing. This process keeps the welding position of the electrode sheet and electrode pads constant, facilitating subsequent welding work and improving welding accuracy and consistency.

[0021] 3. The welding device for graphene heating tubes used in new energy vehicles, after the clamping calibration plate clamps and fixes the electrode busbar, continues to move through the adjustment plate, causing the adjustment plate and the clamping calibration plate to move relative to each other. This causes the clamping calibration plate and the pressing column to move downward, pressing the electrode sheet tightly against the surface of the electrode pad. This ensures that the electrode sheet and the electrode pad are in close contact during welding, thereby effectively guaranteeing the welding quality. Therefore, the clamping calibration plate not only automatically calibrates the welding position to ensure its accuracy, but also, after completing the position calibration, it can achieve a downward pressing effect on the electrode sheet, further promoting a tight fit between the electrode sheet and the electrode pad, significantly improving the welding effect.

[0022] 4. The welding device for the graphene heating element used in new energy vehicles, after the electrode sheet and electrode pad are welded, sprays an antioxidant onto the weld seam through a nozzle. This forms a dense protective film on the weld seam surface, effectively preventing weld oxidation and directly improving the quality of the weld. During spraying, the nozzle is confined within a trajectory groove, allowing it to slide only along this groove. The trajectory of the trajectory groove perfectly matches the trajectory of the weld seam at the edge of the electrode sheet and electrode pad. This design ensures the nozzle slides precisely along the weld seam, uniformly spraying the antioxidant onto every part of the weld seam and significantly improving the spraying effect. Attached Figure Description

[0023] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0024] Figure 2 This is a three-dimensional structural diagram of the welding device in this invention.

[0025] Figure 3 For the present invention Figure 2 Enlarged view of point A in the middle.

[0026] Figure 4 This is a schematic diagram of the adjustment component in this invention.

[0027] Figure 5 This is a cross-sectional view of the adjustment plate and clamping calibration plate in this invention.

[0028] Figure 6 This is a three-dimensional structural diagram of the clamping column and nozzle in this invention.

[0029] Figure 7 For the present invention Figure 6 Enlarged view of section B in the middle.

[0030] Figure 8 This is a schematic diagram of the connection structure between the gear and the toothed plate in this invention.

[0031] Figure 9This is a schematic diagram illustrating the principle of nozzle rotation in this invention.

[0032] In the diagram: 1. Graphene heating element; 2. Water tap; 3. Electrode busbar; 4. Electrode pad; 5. Electrode sheet; 6. Base; 7. Positioning plate; 8. Welding robot; 9. Side plate; 10. Adjustment plate; 11. Adjustment assembly; 111. Bidirectional lead screw; 112. Servo motor; 113. Guide rod; 12. Clamping calibration plate; 13. Slide rail; 14. Moving seat; 15. Servo electric cylinder; 16. Slide rod ; 17. Slide groove; 18. Limiting ball; 19. Inclined groove; 20. Pressing column; 21. Spring; 22. Movable plate; 23. First telescopic rod; 24. Fixed plate; 25. Track groove; 26. Nozzle; 27. Rotating shaft; 28. Second telescopic rod; 29. ​​Gear; 30. Tooth plate; 31. Electric push rod; 32. Material box; 33. Material conveying pipe; 34. Ball bearing; 35. Fastening bolt; 36. Movable groove. Detailed Implementation

[0033] 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.

[0034] Example 1, please refer to Figures 1-9 A graphene electric heating tube for new energy vehicles includes a graphene electric heating tube body 1, both ends of which are sealed with water nozzles 2, an electrode busbar 3 is fixed on the surface of the graphene electric heating tube body 1, an electrode pad 4 is provided on the surface of the graphene electric heating tube body 1, and an electrode sheet 5 connected to the electrode pad 4 is provided on the electrode busbar 3.

[0035] In this technical solution, the graphene heating tube 1 is made of a stainless steel tube with a wall thickness of 0.8mm-1mm, and a graphene material layer is provided on its outer surface to form the graphene heating tube 1. The graphene material layer can be printed onto the outer surface of the stainless steel tube by existing screen printing methods. The graphene heating tube 1 is equipped with a spiral flow channel component, which is a spiral blade, so that the heat transfer process is more uniform. Two water nozzles 2 are installed at both ends of the graphene heating tube 1 through pre-installed sealing rings to achieve thread sealing. Then, the electrode busbar 3 is connected to the nut pre-welded to the surface of the graphene heating tube 1 by fastening bolts 35. Finally, the electrode plates 5 on the electrode busbar 3 are welded to the electrode pads 4 on the graphene heating tube 1 to obtain the finished graphene heating tube.

[0036] In this technical solution, when the coolant flows from one end of the graphene heating tube 1 to the other end through the water nozzle 2, the external power supply heats the graphene heating tube 1 through the electrode busbar 3. The generated heat is directly transferred to the coolant through the thin tube wall. The sealing is achieved through the sealing water nozzles 2 at both ends, ensuring complete isolation between the coolant and the external circuit, eliminating the risk of leakage and improving safety. At the same time, due to the temperature limiting characteristics of graphene material, overheating is prevented, further enhancing safety and simplifying the peripheral circuit.

[0037] In this technical solution, the length of the graphene heating tube is 80-120cm, and the length and width of the electrode sheet 5 and the electrode pad 4 are 1-2cm.

[0038] Example 2, please refer to Figures 1-9 A welding device for graphene electric heating tubes for new energy vehicles includes a base 6, a positioning plate 7 for fixing a water nozzle 2 fixed on the base 6, and an adjustable welding robot 8 on the surface of the base 6. The welding robot 8 is used to weld the electrode sheet 5 and the electrode pad 4.

[0039] A side plate 9 is fixed on the base 6. An adjustment plate 10 is slidably arranged on the top of the side plate 9. An adjustment component 11 for moving the adjustment plate 10 is arranged on the top of the side plate 9. A clamping calibration plate 12 is slidably arranged on the lower surface of the adjustment plate 10. The clamping calibration plate 12 clamps and positions the electrode busbar 3 and automatically calibrates the welding position of the electrode sheet 5 and the electrode pad 4.

[0040] A slide rail 13 is fixed on the base 6, and a movable seat 14 is slidably mounted on the slide rail 13. The welding robot 8 is fixed on the movable seat 14, and a servo electric cylinder 15 for pushing the movable seat 14 to slide on the slide rail 13 is fixed on the base 6.

[0041] The adjustment assembly 11 includes a bidirectional lead screw 111 rotatably connected to the side plate 9, an adjustment plate 10 threadedly connected to the bidirectional lead screw 111, a servo motor 112 connected to the bidirectional lead screw 111 fixed on the surface of the side plate 9, and a guide rod 113 fixed on the top of the side plate 9. The guide rod 113 passes through the adjustment plate 10 and is slidably connected to the adjustment plate 10.

[0042] In this technical solution, when welding the electrode sheet 5 and the electrode pad 4 is required, the water pipe of the graphene heating tube is first manually placed into the positioning plate 7. The positioning plate 7 has a slot that can engage with the flange on the outer surface of the water pipe to achieve limiting and fixing. During manual placement, the electrode manifold 3 is placed near the vertically upward position, but not necessarily in the vertically upward position; there may be a certain deviation from the vertically upward position (the deviation range is less than 20°). At this time, the servo motor 112 drives the bidirectional lead screw 111 to rotate, and the bidirectional lead screw 111 drives the two... The two sets of adjustment plates 10 move, and the clamping calibration plate 12 moves, so that the clamping calibration plate 12 moves closer to the electrode busbar 3 and gradually clamps and fixes the electrode busbar 3. After the electrode busbar 3 is clamped and fixed, the electrode busbar 3 is kept in a vertically upward state, so that the electrode busbar 3 can be automatically calibrated by clamping and fixing it with the clamping calibration plate 12. After the electrode busbar 3 is fixed, it can always keep in a vertically upward state, so that the welding position of the electrode sheet 5 and the electrode pad 4 remains unchanged, thus facilitating the subsequent welding work.

[0043] During welding, the clamping calibration plate 12 ensures the precise positioning of the workpiece, and the welding robot 8 can complete the welding according to the predetermined trajectory. Specifically, the welding robot 8 welds the edge positions of the electrode sheet 5 and the electrode pad 4 according to the predetermined trajectory. After a set of electrode sheets 5 and electrode pads 4 are welded, the servo cylinder 15 pushes the moving seat 14 to slide along the slide rail 13. The moving seat 14 drives the welding robot 8 to move to the next welding position, thereby completing the welding work of multiple sets of electrode sheets 5 and electrode pads 4. The welding robot 8 is prior art and is not the innovation of this application, so no further details are provided.

[0044] In Example 3, when welding the electrode sheet 5 to the electrode pad 4, if the electrode sheet 5 and the electrode pad 4 are not in a tight abutting state, gaps are easily formed between them during welding, resulting in lower weld density and reduced weld strength, thus lowering the welding quality. To address this problem, this example is an improvement based on Example 2. For details, please refer to... Figures 1-9 The clamping calibration plate 12 is elastically disposed inside the adjusting plate 10. A slide rod 16 is fixed to the top of the clamping calibration plate 12. A slide groove 17 for the slide rod 16 to slide is opened inside the adjusting plate 10. A limit ball 18 is fixed to the top of the slide rod 16. An inclined groove 19 is opened inside the slide groove 17. The limit ball 18 slides in the inclined groove 19, causing the clamping calibration plate 12 to move downward relative to the adjusting plate 10.

[0045] A clamping column 20 is fixed on the lower surface of the clamping calibration plate 12. The clamping column 20 moves downward through the clamping calibration plate 12 to press the electrode sheet 5 onto the surface of the electrode pad 4.

[0046] The bottom of the adjusting plate 10 is provided with a movable groove 36, and a spring 21 is provided inside the movable groove 36. A movable plate 22 is fixed to the end of the spring 21. The movable plate 22 is slidably connected to the surface of the clamping calibration plate 12. A first telescopic rod 23 is fixed between the movable plate 22 and the inner wall of the movable groove 36.

[0047] In this technical solution, after the clamping calibration plate 12 clamps and fixes the electrode busbar 3, the bidirectional lead screw 111 continues to move, causing the two sets of adjusting plates 10 to continue moving closer to each other. At this time, since the clamping calibration plate 12 has already clamped and fixed the electrode busbar 3, the clamping calibration plate 12 cannot move. Meanwhile, the adjusting plate 10 continues to move, causing relative movement between the adjusting plate 10 and the clamping calibration plate 12. Figure 5 As shown, taking the right-side adjusting plate 10 as an example, after the clamping calibration plate 12 has clamped and fixed the electrode busbar 3, the adjusting plate 10 continues to move to the left. At this time, the clamping calibration plate 12 slides to the right along the movable groove 36 and compresses the spring 21, causing the spring 21 to store force. When the clamping calibration plate 12 slides to the right relative to the adjusting plate 10, the clamping calibration plate 12 drives the slide rod 16 to slide to the right along the slide groove 17. The slide rod 16 drives the limiting ball 18 to slide to the right along the inclined groove 19, causing the limiting ball 18 to move downward. The limiting ball 18 drives the clamping plate 10 through the slide rod 16. The calibration plate 12 moves downward, and the clamping calibration plate 12 drives the clamping column 20 to move downward, so that the clamping column 20 can clamp the electrode piece 5, so that the electrode piece 5 can be pressed against the surface of the electrode pad 4, and the electrode piece 5 and the electrode pad 4 can be closely attached during welding to ensure welding quality. The clamping calibration plate 12 not only has the effect of automatically calibrating the welding position, but also has the effect of pressing down on the electrode piece 5 after the position is calibrated, so that the electrode piece 5 and the electrode pad 4 can be closely attached, resulting in better welding effect.

[0048] In this technical solution, the clamping column 20 corresponds to the electrode plate 5 in position and the number is the same. Through the first telescopic rod 23, when the clamping calibration plate 12 is compressed by the spring 21, the movable plate 22 can only slide horizontally along the movable groove 36 without vertical displacement. The first telescopic rod 23 includes an inner rod and an outer rod. The inner rod can slide relative to the outer rod to realize the telescopic function. In addition, several sets of ball bearings 34 are rolled on the surface of the clamping calibration plate 12 that contacts the electrode busbar 3 and the surface that contacts the movable plate 22, thereby reducing friction when the clamping calibration plate 12 moves downward, making it easier for the clamping calibration plate 12 to move downward.

[0049] Example 4: To further improve welding quality, this example is an improvement upon Example 3. For details, please refer to [link / reference]. Figures 1-9 A fixing plate 24 is fixed on the outer surface of the clamping calibration plate 12. A track groove 25 is provided on the lower surface of the fixing plate 24. A nozzle 26 is slidably arranged in the track groove 25. A rotating shaft 27 for driving the nozzle 26 to rotate is rotatably arranged inside the fixing plate 24.

[0050] When the nozzle 26 is rotated by the rotating shaft 27, it slides along the track groove 25, so that the nozzle 26 sprays anti-oxidation agent along the weld seam of the electrode sheet 5 and the electrode pad 4.

[0051] A second telescopic rod 28 is fixed between the rotating shaft 27 and the nozzle 26. A gear 29 is fixed at the end of the rotating shaft 27. A toothed plate 30 that meshes with the gear 29 is slidably arranged inside the fixing plate 24. An electric push rod 31 for driving the toothed plate 30 to move is fixed on the outer surface of the fixing plate 24.

[0052] In this technical solution, after the electrode sheet 5 and the electrode pad 4 are welded, the nozzle 26 is opened so that the nozzle 26 sprays an anti-oxidant onto the weld, leaving a dense protective film on the weld surface, thereby improving the quality of the weld.

[0053] To improve the uniformity of the anti-oxidant spraying from the nozzle 26 onto the weld, the toothed plate 30 is driven to slide horizontally inside the fixed plate 24 by the electric push rod 31 while the nozzle 26 is spraying the anti-oxidant. Figure 8 As shown, the toothed plate 30 drives the gear 29 to rotate, the gear 29 drives the rotating shaft 27 to rotate, and the rotating shaft 27 drives the nozzle 26 to rotate through the second telescopic rod 28, so that the nozzle 26 can move along the trajectory groove 25. The trajectory of the trajectory groove 25 is the same as the trajectory of the weld seam at the edge of the electrode sheet 5 and the electrode pad 4. Thus, when the nozzle 26 slides along the trajectory groove 25, it can evenly spray the anti-oxidant onto the weld seam, improving the spraying effect of the anti-oxidant. The trajectory of the trajectory groove 25 is pre-designed according to the weld seam shape of the electrode sheet 5 and the electrode pad 4, and can be processed by CAD / CAM. Its planar projection coincides with the planar projection of the weld seam.

[0054] Furthermore, by using the second telescopic rod 28, when the rotating shaft 27 drives the nozzle 26 to rotate, the nozzle 26 will not rotate in a circle around the rotating shaft 27. As the second telescopic rod 28 rotates with the rotating shaft 27, its length automatically extends and retracts according to the radial distance of the trajectory groove 25, thereby constraining the nozzle 26 to slide along the trajectory groove 25 (i.e., the path of the trajectory groove 25 has a varying radial distance relative to the rotation center of the rotating shaft 27, and the extension and retraction of the second telescopic rod 28 dynamically compensates for this distance change). Moreover, through the extension and retraction of the second telescopic rod 28, the nozzle 26 can slide along the trajectory groove 25. Since the trajectory groove 25 is the same as the trajectory of the weld seam at the edge of the electrode sheet 5 and the electrode pad 4, compared to the spraying method that causes the nozzle 26 to rotate in a circle around the rotating shaft 27, the nozzle 26 can spray the antioxidant more thoroughly onto the weld seam, reducing the occurrence of spray dead zones and further improving the spraying effect, thus contributing to improved welding quality. Figure 9 As shown, if the nozzle 26 moves along the dotted arc line, there may be situations where the two sides and corners of the weld are not sprayed, resulting in spray dead zones. However, if the nozzle 26 moves along the trajectory groove 25, the two sides and corners of the weld can be fully sprayed, thus achieving full spraying.

[0055] In this technical solution, the material box 32 and the material conveying pipe 33 can provide anti-oxidant to the nozzle 26. A valve switch is installed on the material conveying pipe 33 to control the opening and closing of the nozzle 26, thereby controlling the spraying work to be carried out after the welding is completed. The second telescopic rod 28 has the same structure and principle as the first telescopic rod 23 mentioned above, and both can realize the telescopic function, so it will not be described again here.

[0056] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0057] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A graphene heating element for new energy vehicles, comprising a graphene heating element body (1), characterized in that: Both ends of the graphene heating tube (1) are sealed with water taps (2). An electrode busbar (3) is fixed on the surface of the graphene heating tube (1). An electrode pad (4) is provided on the surface of the graphene heating tube (1). An electrode sheet (5) connected to the electrode pad (4) is provided on the electrode busbar (3).

2. A welding apparatus for welding the graphene heating tube for new energy vehicles as described in claim 1, characterized in that: Includes a base (6), on which a positioning plate (7) for fixing the water nozzle (2) is fixed, and an adjustable welding robot (8) is provided on the surface of the base (6) for welding the electrode sheet (5) and the electrode pad (4). A side plate (9) is fixed on the base (6). An adjustment plate (10) is slidably disposed on the top of the side plate (9). An adjustment component (11) for moving the adjustment plate (10) is disposed on the top of the side plate (9). A clamping calibration plate (12) is slidably disposed on the lower surface of the adjustment plate (10). The clamping calibration plate (12) automatically calibrates the welding position of the electrode sheet (5) and the electrode pad (4) by clamping and positioning the electrode busbar (3).

3. The welding device for graphene heating tubes for new energy vehicles according to claim 2, characterized in that: A slide rail (13) is fixed on the base (6), and a movable seat (14) is slidably arranged on the slide rail (13). The welding robot (8) is fixed on the movable seat (14), and a servo electric cylinder (15) is fixed on the base (6) for pushing the movable seat (14) to slide on the slide rail (13).

4. The welding device for graphene heating tubes for new energy vehicles according to claim 3, characterized in that: The adjustment assembly (11) includes a bidirectional lead screw (111) rotatably connected to the side plate (9), the adjustment plate (10) is threadedly connected to the bidirectional lead screw (111), a servo motor (112) connected to the bidirectional lead screw (111) is fixed on the surface of the side plate (9), and a guide rod (113) is fixed on the top of the side plate (9). The guide rod (113) passes through the adjustment plate (10) and is slidably connected to the adjustment plate (10).

5. The welding device for graphene heating tubes for new energy vehicles according to claim 4, characterized in that: The clamping calibration plate (12) is elastically disposed inside the adjusting plate (10). A slide rod (16) is fixed to the top of the clamping calibration plate (12). A slide groove (17) for the slide rod (16) to slide is provided inside the adjusting plate (10). A limit ball (18) is fixed to the top of the slide rod (16). An inclined groove (19) is provided inside the slide groove (17). The limit ball (18) slides in the inclined groove (19), causing the clamping calibration plate (12) to move downward relative to the adjusting plate (10).

6. The welding apparatus for graphene heating tubes for new energy vehicles according to claim 5, characterized in that: A clamping column (20) is fixed on the lower surface of the clamping calibration plate (12). The clamping column (20) moves downward through the clamping calibration plate (12) to press the electrode sheet (5) against the surface of the electrode pad (4).

7. The welding apparatus for graphene heating tubes for new energy vehicles according to claim 6, characterized in that: The bottom of the adjusting plate (10) is provided with a movable groove (36), and a spring (21) is provided inside the movable groove (36). A movable plate (22) is fixed to the end of the spring (21). The movable plate (22) is slidably connected to the surface of the clamping calibration plate (12). A first telescopic rod (23) is fixed between the movable plate (22) and the inner wall of the movable groove (36).

8. The welding apparatus for graphene heating tubes for new energy vehicles according to claim 7, characterized in that: The outer surface of the clamping calibration plate (12) is fixed with a fixing plate (24), and the lower surface of the fixing plate (24) is provided with a track groove (25). A nozzle (26) is slidably arranged in the track groove (25), and a rotating shaft (27) for driving the nozzle (26) to rotate is rotatably arranged inside the fixing plate (24). When the rotating shaft (27) drives the nozzle (26) to rotate, it slides along the track groove (25) so that the nozzle (26) sprays anti-oxidation agent along the weld seam of the electrode sheet (5) and the electrode pad (4).

9. The welding apparatus for graphene heating tubes for new energy vehicles according to claim 8, characterized in that: A second telescopic rod (28) is fixed between the rotating shaft (27) and the nozzle (26). A gear (29) is fixed at the end of the rotating shaft (27). A toothed plate (30) that meshes with the gear (29) is slidably arranged inside the fixing plate (24). An electric push rod (31) for driving the toothed plate (30) to move is fixed on the outer surface of the fixing plate (24).

10. The welding apparatus for graphene heating tubes for new energy vehicles according to claim 9, characterized in that: The outer surface of the regulating plate (10) is fixed with a material box (32) for storing antioxidants. The bottom of the material box (32) is connected to a material conveying pipe (33), and the bottom end of the material conveying pipe (33) is connected to the nozzle (26).

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