A welding assembly device and method for a vanadium cell

Abstract

The application discloses a welding assembly device for a vanadium battery and relates to the technical field of flow batteries, which comprises a packaging transmission assembly, transmission assembly components horizontally installed at the left and right ends of the packaging transmission assembly, assembly components symmetrically arranged at the top ends of the packaging transmission assembly, a PLC controller installed on the outer wall surface of the packaging transmission assembly, a packaging top plate arranged above the packaging transmission assembly, a packaging groove arranged on the bottom wall of the packaging top plate, and an assembly component comprising a packaging polar plate, the edge sides of the packaging polar plate being symmetrically provided with closed-loop welding sealing lines, and the bottom of each closed-loop welding sealing line being provided with an inner welding point. The assembly component, the packaging transmission assembly and the transmission assembly component are cooperated to improve the assembly efficiency of the overall device, make the assembly operation of the overall device simple and low in difficulty, enable the overall operation to be performed in a single station, effectively ensure the overall welding sealing property and reduce the risk of stack leakage.

Description

Technical Field

[0001] This invention relates to the field of flow battery technology, specifically to a welding assembly apparatus and method for vanadium batteries. Background Technology

[0002] As the name suggests, flow batteries use open-loop electrolytes for both positive and negative electrodes. Industrial-grade flow batteries are stacked in series with multiple cells to form a battery pack. The electrode plates serve as both the negative electrode of the previous cell and the positive electrode of the next cell, hence the name bipolar plates. An electrolyte tank is built outside the battery, and the electrolyte is circulated into the battery through a pump. Electrochemical reactions occur on the electrodes on both sides of the separator to generate current, which is then conducted between the bipolar plates or externally. Due to the requirements of electrolyte flow supply, there must be a flow field with a certain structure between the electrodes and the separator to ensure that the electrolyte flows into the reaction zone uniformly.

[0003] However, in the current technology, the assembly and use of vanadium redox flow batteries mostly adopts a single battery cell structure with electrodes on both sides, flow channel frames on both sides adjacent to the electrodes, and a diaphragm in the middle. The adjacent surfaces of each component in the overall structure are sealed by sealing rings, which makes the overall structure complex. At the same time, the number of sealing rings used is large. Too many sealing structures will inevitably increase the assembly difficulty and increase the risk of leakage. Therefore, it is necessary to propose a welding assembly device and method for vanadium batteries. Summary of the Invention

[0004] The purpose of this invention is to provide a welding assembly apparatus and method for vanadium batteries, in order to solve the problems mentioned in the background art, such as the increased assembly difficulty and leakage risk caused by the complex overall structure and the presence of too many sealing structures during the assembly and use of vanadium redox flow batteries.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a welding assembly device for vanadium batteries, comprising a packaging transmission assembly, wherein transmission assembly assemblies are horizontally mounted at the left and right ends of the packaging transmission assembly, assembly assemblies are symmetrically arranged at the top ends of the packaging transmission assembly, a PLC controller is mounted on the outer wall surface of the packaging transmission assembly, a packaging top plate is provided above the packaging transmission assembly, and a packaging groove is provided on the bottom wall of the packaging top plate.

[0006] The assembly includes a packaging electrode plate. The packaging electrode plate has symmetrically arranged closed-loop welding sealing lines at both ends of its sides. An inner welding point is provided at the bottom of each closed-loop welding sealing line. A metal guide plate is attached to the bottom outer wall surface of the packaging electrode plate. A fluid flow frame is provided at the center end of the packaging electrode plate. A sealing ring is installed inside the fluid flow frame. The sealing ring and the attached metal guide plate are embedded in the same vertical horizontal plane. A pressure relief fitting end is installed at the center end of the fluid flow frame. A fluid flow channel is formed on the center surface of the fluid flow frame. The sealing ring has inner spot welding rings at both ends, and mating posts are installed inside the inner spot welding rings. An outer packaging plate is attached to the side end of the mating post through the edge of the packaging electrode plate. The outer packaging plate has outer welding points at both ends, and the outer welding points are connected to the mating posts. Welding seams are installed at both ends of the inner surface of the packaging electrode plate. A packaging frame is installed inside the welding seams. A bent fixing plate is integrally formed on the top of the packaging frame, and a bent fixing plate is integrally formed on the side end of the packaging frame.

[0007] Preferably, the encapsulation transmission assembly includes a protective housing, and two sets of electric linear guides are installed opposite each other on the inner sides of the protective housing. The electric linear guides are installed facing each other inside the protective housing. A short suction clamping block is slidably connected to the outside of one set of electric linear guides, and a long suction clamping block is slidably connected to the outside of the other set of electric linear guides.

[0008] Preferably, a limiting plate is installed inside the protective housing, and vertical positioning limiting plates are fastened to the left and right ends of the limiting plate. A control partition is installed inside the center end of the protective housing, and a guide rail controller is installed on the surface of the control partition.

[0009] Preferably, a welding machine worktable is installed on the top of the protective shell, and the left and right ends of the welding machine worktable are provided with fitting lifting slides. The groove diameter of the fitting lifting slides and the outer volume of the integrally formed structure of the encapsulation frame, bending fixed piece and bending fixing plate are fitted and slid. An assembly base is placed on the central end surface of the welding machine worktable.

[0010] Preferably, a placement and fitting area is provided on the surface of the assembly chassis, and a stop partition is provided on both sides of the interior of the placement and fitting area.

[0011] Preferably, the transmission assembly includes a mounting support structure, a transmission platform operating end is mounted on the top of the mounting support structure, a negative pressure pump is mounted on the side of the transmission platform operating end, and a transmission platform is mounted on the top of the transmission platform operating end.

[0012] Preferably, a driving component is installed on the side end of the transmission platform, a stabilizing end is installed on the top of the transmission platform, a short limiting cross baffle is welded on the surface of the stabilizing end, negative pressure suction pins are symmetrically arranged at both ends of the short limiting cross baffle, and an alignment end is connected through the side end of the transmission platform.

[0013] Preferably, an annular guide rail is provided on the central end surface of the alignment end, and an angle rotation forward and reverse disc is provided at the central end of the annular guide rail. A side rib is fastened to the side end of the alignment end, and two sets of electric push rods are mounted on the top of the side ribs. The side ends of the two sets of electric push rods are provided with soft rubber contact ends.

[0014] Preferably, a height difference sliding plate is attached to the other side of the alignment end, and an advance platform is fastened to the side of the height difference sliding plate. Two sets of advance slots are opened on the left and right end surfaces of the advance platform, and a drive advance structure and a guide slide are respectively installed inside the two sets of advance slots.

[0015] A method for welding and assembling a vanadium battery includes the following steps:

[0016] S1. First, the operator is positioned at the side work position at the center end of the protective housing. The PLC controller controls the operation of the entire device and sends control signals to the drive unit, causing the drive unit to drive the transmission platform to move and transport the assembly components to the alignment end surface. Then, with the cooperation of the ring guide rail, the angle rotation disc rotates at ±90° angles under the control of the internal angle motor. After that, the negative pressure pump causes the negative pressure suction pin to adsorb and detach from the outer wall of the encapsulation plate. At the same time, two sets of electric push rods are activated, causing the two sets of electric push rods to drive the contact soft rubber end to push the outer wall of the encapsulation plate to the height difference slide plate. With the cooperation of the height difference slide plate, the encapsulation plate is transported to the drive advance structure and guide slide column for negative pressure fixation. Then, the drive advance structure and guide slide column drive the encapsulation plate to the top surface of the protective housing.

[0017] S2. Next, the short and long adsorption clamping blocks are used to adsorb the surfaces of the bending fixing plate and the bending fixing sheet respectively to ensure the stability of the encapsulation frame. Then, two sets of electric linear guides are started to drive the adsorbed encapsulation frame to the side wall surfaces of the limit fixing plate and the vertical positioning limiting plate for bonding. Then, the short and long adsorption clamping blocks are disengaged. The lifting rod installed below is started to slide the disengaged encapsulation frame upward along the surface of the limit fixing plate and the vertical positioning limiting plate. When it passes through the fitting lifting slide, the operator places the assembly chassis on the welding machine worktable. Then, the vanadium redox flow battery pack is installed in the placement and fitting area in sequence using bipolar plates and stop ribs.

[0018] S3. Then, the sealing plates on both sides are installed on both sides of the assembly chassis. Then, with the cooperation of two sets of electric push rods, the welding seams opened at both ends of the inner surface of the encapsulation frame, bending fixing plate, bending fixing plate and encapsulation electrode plate are connected, and the bending fixing plate clamps and locks the sealing plates on both sides. After the connection, it is convenient to perform the opposite operation on the installed encapsulation electrode plate. Then, under the operation of the operator, the upper encapsulation top plate is finally installed with the upper and lower linear positioning cooperation formed by the encapsulation groove and the stop rib.

[0019] S4. Next, the operator performs welding operations on the welding machine worktable in sequence for the welding seam, locking the sealing plates on both sides of the bending fixing plate, connecting the bending fixing piece and the top plate of the packaging, the line welding point formed by the inner spot welding ring through the butt plug and the outer welding point, and the closed-loop welding sealing line. The welding methods used are laser welding, ultrasonic welding, or hot melt welding to ensure that the welding line is continuous, without mis-welding, and without missing welding. At the same time, before welding, the sealing ring is installed on the inner side of the liquid flow frame, so that it is embedded in the same vertical horizontal plane as the attached metal guide plate to form a sealing structure, ensuring the sealing of the assembly. With the cooperation of the liquid flow channel, it facilitates the flow path of the electrolyte packaging and improves the assembly efficiency of the overall device.

[0020] Compared with the prior art, the beneficial effects of the present invention are:

[0021] 1. In this invention, by installing the sealing ring inside the liquid flow frame with the help of the assembly components, it is embedded in the same vertical horizontal plane as the attached metal guide plate, forming a sealing structure to ensure the sealing performance of the assembly. At the same time, by using the pressure relief fitting end, the internal pressure adsorption force generated by the sealing ring, the attached metal guide plate, and the above structure under the push of the electric linear guide rail is removed, further ensuring the sealing performance of the overall device installation and fitting. With the help of the liquid flow channel, it is convenient to facilitate the flow path of the electrolyte encapsulation. Then, the welding seam, the locking of the sealing plates on both sides by the bending fixing plate, the connection of the bending fixing plate and the encapsulation top plate, the line welding point formed by the inner spot welding ring and the outer welding point through the butt plug and the closed-loop welding sealing line are welded in sequence. This facilitates the improvement of the assembly efficiency of the overall device, making the assembly operation of the overall device simple and easy to operate. The overall operation can be carried out with only a single station, effectively ensuring the overall welding sealing performance.

[0022] 2. In this invention, with the cooperation of the encapsulation transmission assembly, the encapsulated electrode plate is easily driven to the top surface of the protective shell by the cooperation of the drive advance structure and the guide slide column. Then, using the short adsorption clamping block, the long adsorption clamping block and two sets of electric linear guide rails, the adsorbed encapsulated frame is driven to be conveyed to the side wall surface of the limiting point plate and the vertical positioning restriction plate for bonding. Then, the short adsorption clamping block and the long adsorption clamping block are disengaged. The lifting rod installed below is activated to slide the disengaged encapsulated frame upward along the surface of the limiting point plate and the vertical positioning restriction plate. When it passes through the fitting lifting slide, the operator places the assembly chassis on the welding machine worktable. Then, the vanadium redox flow battery pack is installed in the placement and fitting area in sequence using the bipolar plates and the stop spacer. After that, the sealing plates on both sides are installed on both sides of the assembly chassis to improve the overall assembly efficiency.

[0023] 3. In this invention, with the cooperation of the transmission assembly components, the drive unit and the negative pressure pump enable the transmission platform to drive the assembly components to the alignment end surface. Then, with the cooperation of the annular guide rail, the angle rotation disc rotates at an angle of 90±° under the control of the internal angle motor. Afterwards, with the cooperation of the negative pressure pump and the negative pressure suction pin, the outer wall of the encapsulation plate is adsorbed and detached. Then, with the action of two sets of electric push rods and the contact soft rubber end, the outer wall of the encapsulation plate is adhered to the height difference sliding plate, and the encapsulation plate is transported to the drive advance structure and the guide slide for negative pressure fixation. Then, the drive advance structure and the guide slide drive the encapsulation plate to the top surface of the protective shell, forming an automated assembly structure, which saves time and effort and reduces the labor costs of enterprises. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the main structure of a welding assembly device for vanadium batteries according to the present invention;

[0025] Figure 2 This is a side view of the structure of a welding and assembly device for vanadium batteries according to the present invention;

[0026] Figure 3 This is a schematic diagram of the internal cross-sectional structure of the main body of a welding assembly device for vanadium batteries according to the present invention;

[0027] Figure 4 This is a schematic diagram of the assembly components in a welding assembly device for vanadium batteries according to the present invention;

[0028] Figure 5 This is a schematic diagram of the separation structure of the assembly components in a welding assembly device for vanadium batteries according to the present invention.

[0029] Figure 6 This is a schematic diagram of the encapsulation and transmission component in a welding and assembly device for vanadium batteries according to the present invention;

[0030] Figure 7 This is a schematic diagram of the transmission assembly component in a welding assembly device for vanadium batteries according to the present invention.

[0031] In the diagram: 1. Encapsulated transmission assembly; 11. Protective housing; 12. Electric linear guide rail; 13. Short suction clamping block; 14. Limiting and fixing plate; 15. Vertical positioning limiting plate; 16. Control partition; 17. Guide rail controller; 18. Welding machine worktable; 19. Fitting lifting slide; 190. Assembly chassis; 191. Placement fitting area; 192. Stopping partition; 193. Long suction clamping block; 2. Transmission assembly assembly; 21. Installation support structure; 22. Transmission platform operating end; 23. Negative pressure pump; 24. Stabilizing end; 25. Drive component; 26. Short limiting horizontal baffle; 27. Negative pressure suction pin; 28. Transmission platform; 29. ​​Alignment end; 290. 1. Circular guide rail; 291. Angle rotation forward and reverse disc; 292. Side rib; 293. Electric push rod; 294. Height difference slide plate; 295. Advancement platform; 296. Guide slide column; 297. Drive advance structure; 3. Assembly components; 31. Encapsulation electrode plate; 32. Closed-loop welding sealing line; 33. Inner welding point; 34. Fluid flow frame; 35. Fluid flow channel; 36. Inner spot welding ring; 37. Attached metal guide plate; 38. Bending fixing plate; 39. Encapsulation frame; 391. Bending fixing plate; 392. Welding seam; 393. Outer encapsulation plate; 394. Outer welding point; 395. Pressure relief bonding end; 4. PLC controller; 5. Encapsulation top plate; 6. Encapsulation groove. 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 of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0033] Reference Figure 1 - Figure 7As shown: A welding assembly device for vanadium batteries includes a packaging transmission assembly 1, with transmission assembly assemblies 2 horizontally mounted at both ends of the packaging transmission assembly 1, and assembly assemblies 3 symmetrically arranged at both ends of the top of the packaging transmission assembly 1. A PLC controller 4 is mounted on the outer wall surface of the packaging transmission assembly 1, and a packaging top plate 5 is arranged above the packaging transmission assembly 1. A packaging groove 6 is provided on the bottom wall of the packaging top plate 5. The assembly assemblies 3 include a packaging electrode plate 31, with closed-loop welding sealing lines 32 symmetrically opened at both ends of the sides of the packaging electrode plate 31. An inner welding point 33 is provided at the bottom of the closed-loop welding sealing line 32. A metal guide plate 37 is attached to the bottom outer wall surface of the packaging electrode plate 31. A liquid flow frame 34 is provided at the center end of the packaging electrode plate 31, and a sealing ring is installed on the inner side of the liquid flow frame 34. The sealing ring and the metal guide plate 37 are attached to the outer wall surface of the bottom of the packaging electrode plate 31. The attached metal guide plate 37 is embedded in the same vertical horizontal plane. The center end of the liquid flow frame 34 is provided with a pressure relief fitting end 395. The center surface of the liquid flow frame 34 is provided with a liquid flow channel 35. The left and right ends of the sealing ring are provided with inner spot welding rings 36. The inner spot welding rings 36 are provided with mating posts. The side ends of the mating posts penetrate the side of the encapsulation electrode plate 31 and are fitted with an outer encapsulation plate 393. The two ends of the outer encapsulation plate 393 are provided with outer welding points 394. The outer welding points 394 are connected to the mating posts. The inner surface of the encapsulation electrode plate 31 is provided with welding seams 392 at both ends. The encapsulation frame 39 is provided with an encapsulation frame 39 inside the welding seams 392. The top of the encapsulation frame 39 is integrally formed with a bent fixing plate 38. The side ends of the encapsulation frame 39 are integrally formed with a bent fixing plate 391.

[0034] according to Figure 1 , Figure 2 , Figure 3 and Figure 6 As shown, the encapsulation transmission assembly 1 includes a protective housing 11. Two sets of electric linear guides 12 are installed opposite each other on both sides of the inner side of the protective housing 11. The electric linear guides 12 are installed facing each other inside the protective housing 11. A short adsorption clamping block 13 is slidably connected to the outside of one set of electric linear guides 12, and a long adsorption clamping block 193 is slidably connected to the outside of the other set of electric linear guides 12. With the cooperation of the short adsorption clamping block 13 and the long adsorption clamping block 193, the surfaces of the bending fixing plate 391 and the bending fixing piece 38 are adsorbed respectively. The short adsorption clamping block 13 and the long adsorption clamping block 193 are connected to the negative pressure pump 23 through a negative pressure pipe, so that the negative pressure pump 23 provides negative pressure adsorption force to the short adsorption clamping block 13 and the long adsorption clamping block 193. Then, with the cooperation of the two sets of electric linear guides 12, the adsorbed encapsulation frame 39 is driven to be transported to the side wall surface of the limiting fixing plate 14 and the vertical positioning limiting plate 15.

[0035] according to Figure 1 , Figure 2 , Figure 3 and Figure 6As shown, a limit plate 14 is installed inside the protective housing 11. Vertical positioning limit plates 15 are fastened to the left and right ends of the limit plate 14. A control partition 16 is installed inside the center end of the protective housing 11. A guide rail controller 17 is installed on the surface of the control partition 16. With the cooperation of the limit plate 14 and the vertical positioning limit plates 15, the conveyed packaging frame 39 is fitted and limited. Under the signal command control of the guide rail controller 17, it is convenient to control the two sets of electric linear guide rails 12 to run in opposite directions.

[0036] according to Figure 1 , Figure 2 , Figure 3 and Figure 6 As shown, a welding machine worktable 18 is installed on the top of the protective housing 11. The left and right ends of the welding machine worktable 18 are provided with fitting lifting slides 19. The groove diameter of the fitting lifting slide 19 fits and slides with the outer volume of the structure integrally formed by the encapsulation frame 39, the bending fixed piece 38, and the bending fixed plate 391. An assembly base 190 is placed on the central end surface of the welding machine worktable 18. Then, the short adsorption clamping block 13 and the long adsorption clamping block 193 are disengaged. The lifting rod installed below is activated to slide the disengaged encapsulation frame 39 upward along the surface of the limiting fixed point plate 14 and the vertical positioning limiting plate 15 through the fitting lifting slide 19.

[0037] according to Figure 1 , Figure 2 , Figure 3 and Figure 6 As shown, a placement and fitting area 191 is provided on the surface of the assembly chassis 190. The two sides of the interior of the placement and fitting area 191 are equally divided by a stop rib 192. With the cooperation of the placement and fitting area 191 and the stop rib 192, it is convenient to assemble the vanadium redox flow battery pack in sequence using the bipolar plate connection method.

[0038] according to Figure 1 , Figure 2 , Figure 3 and Figure 7 As shown, the transmission assembly 2 includes a mounting support frame 21. A transmission platform operation end 22 is mounted on the top of the mounting support frame 21. A negative pressure pump 23 is mounted on the side of the transmission platform operation end 22. A transmission platform 28 is mounted on the top of the transmission platform operation end 22. Under the control of the transmission platform operation end 22, the control command signal received from the PLC controller 4 is converted and sent to the drive component 25, so that the drive component 25 can drive the transmission platform 28 to operate.

[0039] according to Figure 1 , Figure 2 , Figure 3 and Figure 7As shown, a drive component 25 is installed on the side of the transmission platform 28, and a stabilizing end 24 is installed on the top of the transmission platform 28. A short limiting cross baffle 26 is welded on the surface of the stabilizing end 24. Negative pressure suction pins 27 are symmetrically arranged at both ends of the short limiting cross baffle 26. An alignment end 29 is connected through the side of the transmission platform 28. With the cooperation of the stabilizing end 24, the short limiting cross baffle 26 and the negative pressure suction pins 27, it is convenient to perform stable negative pressure conveying of the assembly component 3. The assembly component 3 has been installed and assembled before the operation.

[0040] according to Figure 1 , Figure 2 , Figure 3 and Figure 7 As shown, an annular guide rail 290 is provided on the central end surface of the alignment end 29, and an angle rotating positive and negative disk 291 is provided at the central end of the annular guide rail 290. A side rib 292 is fastened to the side end of the alignment end 29, and two sets of electric push rods 293 are mounted on the top of the side rib 292. The side ends of the two sets of electric push rods 293 are provided with soft rubber contact ends. The assembly assembly 3 is transported to the surface of the alignment end 29 by the transmission platform 28. Then, with the cooperation of the annular guide rail 290, the angle rotating positive and negative disk 291 rotates at ±90° angles under the control of the internal angle motor. Afterwards, the negative pressure pump 23 causes the negative pressure suction pin 27 to adsorb and detach from the outer wall of the encapsulation plate 31. At the same time, the two sets of electric push rods 293 are activated, causing the two sets of electric push rods 293 to drive the soft rubber contact ends to push the outer wall of the encapsulation plate 31 above the height difference sliding plate 294.

[0041] according to Figure 1 , Figure 2 , Figure 3 and Figure 7 As shown, a height difference slide plate 294 is attached to the other side of the alignment end 29. An advancing platform 295 is fastened to the side of the height difference slide plate 294. Two sets of advancing slots are opened on the left and right end surfaces of the advancing platform 295. A driving advancing structure 297 and a guide slide column 296 are respectively installed inside the two sets of advancing slots. With the cooperation of the height difference slide plate 294, the encapsulation plate 31 is transported to the top of the driving advancing structure 297 and the guide slide column 296 for negative pressure fixation. Then, the driving advancing structure 297 and the guide slide column 296 drive the encapsulation plate 31 to the top surface of the protective shell 11. The overall device is a partial structure, and multiple sets can be assembled during operation.

[0042] The wiring diagrams of the electric linear guide rail 12, guide rail controller 17, negative pressure pump 23 and PLC controller 4 in this invention are common knowledge in the field, and their working principles are known technologies. The appropriate model is selected according to actual use. Therefore, the control methods and wiring layouts of the electric linear guide rail 12, guide rail controller 17, negative pressure pump 23 and PLC controller 4 will not be explained in detail.

[0043] The operation and working principle of this device are as follows: First, the operator is positioned at the side working position at the center end of the protective housing 11. The PLC controller 4 controls the operation of the entire device, sending control signals to the drive unit 25 and the negative pressure pump 23 in sequence. This causes the drive unit 25 to drive the transmission platform 28, which in turn transports the assembly assembly 3 to the surface of the alignment end 29. Then, with the cooperation of the annular guide rail 290, the angle rotation disc 291 rotates at ±90° angles under the control of the internal angle motor. Afterward, the negative pressure pump 23 causes the negative pressure suction pin 27 to adsorb and detach from the outer wall of the encapsulation plate 31. At the same time, two sets of electric push rods 293 are activated to push the contact soft rubber end to the outer wall of the encapsulation plate 31 above the height difference sliding plate 294. With the cooperation of the height difference sliding plate 294, the encapsulation plate 31 is conveyed to the drive advance structure 297 and guide slide column 296 for negative pressure fixation. Then, the drive advance structure 297 and guide slide column 296 move the encapsulation plate 31 to the top surface of the protective shell 11. Next, the short adsorption clamping block 13 and the long adsorption clamping block 193 are used to adsorb the surfaces of the bending fixing plate 391 and the bending fixing piece 38 respectively, ensuring the stability of the encapsulation frame 39. Then, the two sets of electric linear guide rails 12 are activated to move the adsorbed encapsulation frame 39 to the side wall surfaces of the limit fixing plate 14 and the vertical positioning limiting plate 15 for bonding. Then, the short adsorption clamping block 13 and the long adsorption clamping block 193 are released, and the lifting stop rod installed below is activated. The detached encapsulation frame 39 slides upward along the surfaces of the limiting plate 14 and the vertical positioning plate 15. As it passes through the fitting lifting slide 19, the operator places the assembly chassis 190 on the welding machine worktable 18. Then, the vanadium redox flow battery pack is installed in equal sections inside the placement fitting area 191 using bipolar plates and stop ribs 192. Next, the sealing plates on both sides are installed on both sides of the assembly chassis 190. Then, with the cooperation of two sets of electric push rods 293, the welding seams 392 installed at both ends of the inner surfaces of the encapsulation frame 39, the bending fixing plate 38, the bending fixing plate 391, and the encapsulation electrode plate 31 are aligned, and the bending fixing plate 391 clamps and locks the sealing plates on both sides. After alignment, it is convenient to install the... The encapsulation plate 31 is oriented towards each other. Then, under the operator's control, the upper encapsulation plate 5 is finally installed with the encapsulation groove 6 and the stop rib 192 forming a linear positioning fit. Next, the operator performs welding operations on the welding machine worktable 18, sequentially welding the weld seam 392, locking the two side sealing plates with the bending fixing plate 391, connecting the bending fixing piece 38 and the encapsulation plate 5, the line welding point formed by the inner spot welding ring 36 through the butt joint and the outer welding point 394, and the closed-loop welding sealing line 32. Manual welding or automated welding operations can be performed using a preset program. The welding methods used are laser welding, ultrasonic welding, or hot melt welding to ensure continuous weld lines, no mis-welding, and no missing welds. Simultaneously, before welding...The sealing ring is installed inside the liquid flow frame 34, embedded in the same vertical plane as the attached metal guide plate 37, forming a sealing structure to ensure the sealing performance of the assembly. Simultaneously, the pressure relief fitting end 395 removes the internal pressure adsorption force generated by the pushing action of the sealing ring, attached metal guide plate 37, and the aforementioned structure under the cooperation of the electric linear guide rail 12, further ensuring the sealing performance of the overall device installation. Furthermore, with the cooperation of the liquid flow channel 35, it facilitates the flow path of the electrolyte sealant, improving the assembly efficiency of the overall device. This makes the assembly operation simple and easy, requiring only a single workstation for the entire operation, effectively ensuring the overall welding seal.

[0044] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A welding assembly device for vanadium batteries, characterized in that: The package includes a packaging transmission assembly (1), with transmission assembly assemblies (2) horizontally mounted on the left and right ends of the packaging transmission assembly (1), assembly assemblies (3) symmetrically arranged on the top ends of the packaging transmission assembly (1), a PLC controller (4) mounted on the outer wall surface of the packaging transmission assembly (1), a packaging top plate (5) above the packaging transmission assembly (1), and a packaging groove (6) on the bottom wall of the packaging top plate (5). The assembly component (3) includes an encapsulation electrode plate (31). A closed-loop welding sealing line (32) is symmetrically provided at both ends of the encapsulation electrode plate (31). An inner welding point (33) is provided at the bottom of the closed-loop welding sealing line (32). A metal guide plate (37) is attached to the bottom outer wall surface of the encapsulation electrode plate (31). A liquid flow frame (34) is provided at the center end of the encapsulation electrode plate (31). A sealing ring is installed on the inner side of the liquid flow frame (34). The sealing ring and the metal guide plate (37) are embedded in the same vertical horizontal plane. A pressure relief fitting end (395) is installed at the center end of the liquid flow frame (34). A liquid flow channel (35) is provided on the center surface of the liquid flow frame (34). The sealing ring is provided with inner spot welding rings (36) at both ends. A mating post is installed inside the inner spot welding ring (36). An outer packaging plate (393) is attached to the side of the packaging electrode plate (31) through the side of the mating post. An outer welding point (394) is provided at both ends of the outer packaging plate (393). The outer welding point (394) is connected to the mating post. Welding seams (392) are installed at both ends of the inner surface of the packaging electrode plate (31). A packaging frame (39) is installed inside the welding seam (392). A bent fixing plate (38) is integrally formed on the top of the packaging frame (39). A bent fixing plate (391) is integrally formed on the side of the packaging frame (39).

2. The welding and assembly apparatus for vanadium batteries according to claim 1, characterized in that: The encapsulated transmission assembly (1) includes a protective housing (11). Two sets of electric linear guides (12) are installed opposite each other on the inner sides of the protective housing (11). The electric linear guides (12) are installed facing each other inside the protective housing (11). A short suction clamping block (13) is slidably connected to the outside of one set of electric linear guides (12), and a long suction clamping block (193) is slidably connected to the outside of the other set of electric linear guides (12).

3. The welding and assembly apparatus for vanadium batteries according to claim 2, characterized in that: The protective housing (11) is equipped with a limit positioning plate (14) inside. The left and right ends of the limit positioning plate (14) are fastened with vertical positioning limit plates (15). The center end of the protective housing (11) is equipped with a control partition (16). The surface of the control partition (16) is equipped with a guide rail controller (17).

4. The welding and assembly apparatus for vanadium batteries according to claim 3, characterized in that: The top of the protective shell (11) is equipped with a welding machine worktable (18). The left and right ends of the welding machine worktable (18) are provided with a fitting lifting slide (19). The groove diameter of the fitting lifting slide (19) and the outer volume of the structure integrally formed by the encapsulation frame (39), the bending fixed piece (38), and the bending fixed plate (391) are fitted and slid together. An assembly base (190) is placed on the central end surface of the welding machine worktable (18).

5. The welding and assembly apparatus for vanadium batteries according to claim 4, characterized in that: The surface of the assembly chassis (190) is provided with a placement and fitting area (191), and the two sides inside the placement and fitting area (191) are equally divided with a gear shift rib (192).

6. The welding and assembly apparatus for vanadium batteries according to claim 5, characterized in that: The transmission assembly (2) includes a mounting support structure (21), a transmission platform operation end (22) is mounted on the top of the mounting support structure (21), a negative pressure pump (23) is mounted on the side of the transmission platform operation end (22), and a transmission platform (28) is mounted on the top of the transmission platform operation end (22).

7. The welding and assembly apparatus for vanadium batteries according to claim 6, characterized in that: A drive component (25) is installed on the side end of the transmission platform (28), a stabilizing end (24) is installed on the top of the transmission platform (28), a short limiting cross baffle (26) is welded on the surface of the stabilizing end (24), negative pressure suction pins (27) are symmetrically arranged at both ends of the short limiting cross baffle (26), and an alignment end (29) is connected through the side end of the transmission platform (28).

8. The welding and assembly apparatus for vanadium batteries according to claim 7, characterized in that: An annular guide rail (290) is provided on the central end surface of the alignment end (29), and an angle rotating forward and reverse disc (291) is provided at the central end of the annular guide rail (290). A side rib (292) is fastened to the side end of the alignment end (29), and two sets of electric push rods (293) are mounted on the top of the side rib (292). The side ends of the two sets of electric push rods (293) are provided with soft rubber contact ends.

9. The welding and assembly apparatus for vanadium batteries according to claim 8, characterized in that: The other side of the alignment end (29) is attached to a height difference slide plate (294). The side of the height difference slide plate (294) is fastened with an advance platform (295). Two sets of advance slots are opened on the left and right end surfaces of the advance platform (295). The two sets of advance slots are respectively equipped with a drive advance structure (297) and a guide slide column (296).

10. A method for welding and assembling a vanadium battery, characterized in that, The vanadium battery welding assembly apparatus according to claim 9 includes the following steps: S1. First, the operator is positioned at the side working position at the center end of the protective housing (11). The PLC controller (4) controls the operation of the entire device and sends a control signal to the drive unit (25), causing the drive unit (25) to drive the transmission platform (28) to operate, and drive the assembly component (3) to be transported to the surface of the alignment end (29). Then, with the cooperation of the ring guide rail (290), the angle rotation disc (291) rotates at ±90 degrees under the control of the internal angle motor. After that, the negative pressure pump (23) causes the negative pressure suction pin (27) to rotate. The outer wall of the encapsulation electrode (31) is adsorbed and detached. At the same time, two sets of electric push rods (293) are activated, so that the two sets of electric push rods (293) drive the contact soft rubber end to push the outer wall of the encapsulation electrode (31) to the height difference slide plate (294). With the cooperation of the height difference slide plate (294), the encapsulation electrode (31) is transported to the drive advance structure (297) and guide slide column (296) for negative pressure fixation. Then the drive advance structure (297) and guide slide column (296) drive the encapsulation electrode (31) to the top surface of the protective shell (11). S2. Next, the short adsorption clamping block (13) and the long adsorption clamping block (193) are used to adsorb the surfaces of the bending fixing plate (391) and the bending fixing piece (38) respectively, to ensure the stability of the encapsulation frame (39). Then, the two sets of electric linear guides (12) are started to drive the adsorbed encapsulation frame (39) to be conveyed to the side wall surfaces of the limiting fixing plate (14) and the vertical positioning limiting plate (15) for bonding. Then, the short adsorption clamping block (13) and the long adsorption clamping block (193) are used to adsorb the surface of the bending fixing plate (391) and the bending fixing piece (38) respectively, to ensure the stability of the encapsulation frame (39). After that, the short adsorption clamping block (13) and the long adsorption clamping block (193) are used to adsorb the surface of the bending fixing plate (391) and the bending fixing piece (38) respectively, to ensure the stability of the encapsulation frame (39). 93) To perform the detachment operation, the lifting stop rod installed below is activated to slide the detached encapsulation frame (39) upward along the surface of the limiting plate (14) and the vertical positioning limit plate (15). When it passes through the fitting lifting slide (19), the operator places the assembly chassis (190) on the welding machine workbench (18). Then, the vanadium redox flow battery pack is installed in the placement fitting area (191) in sequence using bipolar plates and gear spacers (192). S3. Then, the sealing plates on both sides are installed on both sides of the assembly chassis (190). Then, with the cooperation of two sets of electric push rods (293), the welding seams (392) installed at both ends of the inner surface of the encapsulation frame (39), the bending fixing plate (38), the bending fixing plate (391) and the encapsulation electrode plate (31) are connected. The bending fixing plate (391) clamps and locks the sealing plates on both sides. After the connection, it is convenient to perform the opposite operation on the installed encapsulation electrode plate (31). Then, under the operation of the operator, the upper encapsulation top plate (5) is finally installed with the upper and lower linear positioning cooperation formed by the encapsulation groove (6) and the stop rib (192). S4. Next, the operator performs welding operations on the welding machine worktable (18) in sequence on the welding seam (392), the locking of the sealing plates on both sides of the bending fixing plate (391), the connection of the bending fixing piece (38) and the top plate of the encapsulation (5), the line welding point formed by the inner spot welding ring (36) through the butt plug and the outer welding point (394) and the closed-loop welding sealing line (32). The welding method used is laser welding, ultrasonic welding or hot melt welding to ensure that the welding line is continuous, without wrong welding and without missing welding. At the same time, before welding, the sealing ring is installed on the inner side of the liquid flow frame (34) so ​​that it is embedded in the same vertical horizontal plane as the attached metal guide plate (37) to form a sealing structure, ensuring the sealing of the assembly. With the cooperation of the liquid flow channel (35), it is convenient to provide a flow path for the electrolyte encapsulation, which is conducive to improving the assembly efficiency of the overall device.

Images