An assembling device of a negative electrode-free sodium ion battery

Abstract

The utility model relates to the technical field of new energy, especially a kind of assembling device of no negative electrode sodium ion battery, when assembling no negative electrode sodium ion battery, not only electrolyte can be filled in shell, and the sealing of shell can be completed without needing to transfer shell, improve the overall assembly efficiency, it is convenient to use, and practicality is high;Including bottom plate and support table;Still including filling mechanism, sealing mechanism, fixed mechanism and lifting mechanism, support table is installed on bottom plate by lifting mechanism, lifting mechanism is used to lift support table, fixed mechanism is installed on support table upper end, fixed mechanism has the function of fixing, filling mechanism and sealing mechanism are all installed on bottom plate, filling mechanism has the function of filling, sealing mechanism has the function of sealing.

Description

Technical Field

[0001] This utility model relates to the field of new energy technology, and in particular to an assembly device for a negative electrode-free sodium-ion battery. Background Technology

[0002] A negative electrodeless sodium-ion battery is a type of battery that does not require a pre-fabricated negative electrode sheet. During the first charge, sodium ions in a dedicated electrolyte move towards the current collector at the bottom of the casing under the influence of an electric field, and deposit on the surface of the current collector to form a "metallic sodium layer," thus forming the negative electrode of the battery. This eliminates the need for assembling a negative electrode sheet during the assembly process. Currently, when assembling sodium-ion batteries, the positive electrode sheet and connector are first assembled onto the casing of the negative electrodeless sodium-ion battery. Then, the electrolyte is filled into the casing using a filling mechanism. The casing filled with electrolyte is then transferred to a sealing mechanism, which seals the filling port of the casing, completing the assembly of the negative electrodeless sodium-ion battery. However, this method has the following problems: after filling the casing, it is necessary to transfer the casing to the sealing mechanism for sealing. This transfer process wastes a lot of time, resulting in low assembly efficiency. Therefore, an assembly device is needed that can both fill the casing with electrolyte and seal the casing. Utility Model Content

[0003] To solve the above-mentioned technical problems, this utility model provides an assembly device for a negative electrode-free sodium-ion battery that not only fills the casing with electrolyte during assembly, but also seals the casing without transferring it, thereby improving the overall assembly efficiency, making it convenient to use and highly practical.

[0004] This utility model discloses an assembly device for a negative electrode-free sodium-ion battery, comprising a base plate and a support platform; it also includes a filling mechanism, a sealing mechanism, a fixing mechanism, and a lifting mechanism. The support platform is mounted on the base plate via the lifting mechanism, which is used to raise and lower the support platform. The fixing mechanism is mounted on the upper end of the support platform and has a fixing function. Both the filling and sealing mechanisms are mounted on the base plate; the filling mechanism has a filling function, and the sealing mechanism has a sealing function. During the filling process of assembling the negative electrode-free sodium-ion battery, the sodium-ion battery casing with the electrode plates installed is first fixed by the fixing mechanism. Then, the electrolyte is filled into the casing by the filling mechanism. After filling, the sealing cap is placed on the filling port at the upper end of the casing. The sealing mechanism then welds the sealing cap and the casing together to fix the sealing cap at the filling port at the upper end of the casing, thus sealing the casing. In assembling the negative electrode-free sodium-ion battery, not only can electrolyte be filled into the casing, but the casing can also be sealed without transferring it, improving overall assembly efficiency, making it convenient to use, and highly practical.

[0005] Preferably, the filling mechanism includes a fixed frame, an electrolyte storage tank, a delivery pump, a delivery pipe, and a filling head. The fixed frame is fixedly installed on the upper part of the base plate, the electrolyte storage tank is fixedly installed on the base plate, the input end of the delivery pump is connected to the electrolyte storage tank, and the output end of the delivery pump is connected to the filling head through the delivery pipe. The filling head is equipped with a solenoid valve and is located above the fixed mechanism. When filling the shell with electrolyte, the shell is first fixed by the fixed mechanism. At this time, the filling port at the upper end of the shell is located below the filling head. Then, the fixed mechanism is used to adjust the height of the shell by the lifting mechanism so that the distance between the shell and the filling head is a suitable distance for filling. Then, the delivery pump is turned on so that the electrolyte in the electrolyte storage tank enters the filling port of the shell sequentially through the delivery pump, the delivery pipe, and the filling head, thereby allowing the electrolyte to enter the shell through the filling port, which facilitates the filling of the shell.

[0006] Preferably, the fixing mechanism includes an indexing plate and a three-jaw chuck. The indexing plate is fixedly installed on the upper end of the support, and the three-jaw chuck is fixedly installed on the rotating end of the indexing plate. When filling the shell, the shell is first fixed by the three-jaw chuck, and then the shell is filled and sealed, which improves the stability of the shell during the assembly process.

[0007] Preferably, the lifting mechanism includes a hydraulic cylinder, a push rod, a fixed column, and a sliding column. The hydraulic cylinder is fixedly mounted on the base plate, and the output end of the hydraulic cylinder is provided with a push rod. The fixed column is fixedly mounted on the base plate, and the lower part of the sliding column is slidably mounted on the fixed column. The support is fixedly mounted on the upper end of the push rod and the sliding column. When the housing is fixed by the three-jaw chuck, the hydraulic cylinder is opened, causing the push rod to adjust its height, which in turn causes the support to drive the indexing plate and the three-jaw chuck to adjust their height, thereby adjusting the height of the housing. The housing can be adjusted to a suitable operating height according to assembly requirements, making it convenient to use and highly reliable and practical.

[0008] Preferably, the sealing mechanism includes a laser welding machine and a moving mechanism. The laser welding machine is equipped with a laser welding head, which is mounted on the moving mechanism. The moving mechanism is used to move the laser welding head left and right. After the electrolyte is filled into the shell, the operator places the sealing cap on the filling port at the top of the shell, with the lower part of the sealing cap and the filling port being interference-fitted. Then, the lifting mechanism causes the fixing mechanism to adjust the height of the shell, so that the gap between the shell and the sealing cap is adjusted in the height direction to be the same as that of the laser welding head. Then, the moving mechanism moves the laser welding head to a suitable position for welding the sealing cap and the shell. Then, the laser welding head is opened, and the laser welding head emits a high-temperature laser to weld the gap between the shell and the sealing cap. At the same time, the indexing plate rotates the three-jaw chuck, and the three-jaw chuck drives the shell to rotate. During the rotation of the shell, the various positions in the circumferential direction of the gap between the shell and the sealing cap are welded, thus completing the sealing of the filling port of the shell.

[0009] Preferably, the moving mechanism includes a support plate, a servo cylinder, a push rod, a sliding rod, and a moving plate. The support plate is fixedly mounted on the base plate, the servo cylinder is fixedly mounted on the support plate, and the power output end of the servo cylinder is provided with a push rod. Both the push rod and the sliding rod are slidably mounted on the support plate. The moving plate is fixedly mounted on the left end of the push rod and the sliding rod, and the laser welding head is fixedly mounted on the left end of the moving plate. When the sealing cap is welded to the filling port of the shell using the laser welding head, the servo cylinder is opened, causing the push rod to move the moving plate to the left, thereby causing the laser welding head to move to the left, so that the distance between the laser welding head and the joint between the sealing cap and the shell is a suitable welding distance. Then, the laser welding head is opened to weld the joint between the sealing cap and the shell.

[0010] Preferably, the assembly also includes a linear module, a sliding block, a connecting plate, and a glue gun. The linear module is fixedly mounted on the base plate, and a sliding block is provided on the linear module for moving the sliding block left and right. A support plate is provided at the upper end of the sliding block, and a connecting plate is fixedly mounted on the support plate. The glue gun is fixedly mounted on the connecting plate. After the sealing cap is fixedly welded to the filling port on the upper part of the housing, the lifting mechanism drives the support platform to adjust the height of the fixing mechanism and the housing, so that the weld between the housing and the sealing cap is adjusted in the height direction to be consistent with the height of the glue gun. Then, the linear module moves the sliding block to the right, thereby moving the connecting plate and the glue gun to the right, so that the output end of the glue gun is moved to a suitable height for applying glue to the weld between the housing and the sealing cap. Then, the glue gun is turned on, so that the glue gun applies sealant to the weld between the housing and the sealing cap. At the same time, the indexing plate drives the three-jaw chuck and the housing to rotate. During the rotation of the housing, the glue gun applies sealant to various positions in the circumferential direction of the weld, improving the sealing performance between the housing and the sealing cap.

[0011] Preferably, the base plate is equipped with a lighting lamp; this arrangement makes the area above the base plate brighter, facilitating observation of the filling and sealing operations.

[0012] Compared with the prior art, the advantages of this utility model are as follows: when assembling a negative electrode-free sodium-ion battery, not only can electrolyte be filled into the casing, but the casing can also be sealed without transferring the casing, which improves the overall assembly efficiency, makes it convenient to use, and has high practicality. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the first isometric structure of this utility model; Figure 2 This is a schematic diagram of the second isometric structure of this utility model; Figure 3 This is a schematic diagram of the sealing mechanism; Figure 4This is a structural diagram of the lifting mechanism; Figure 5 This is a schematic diagram of the filling mechanism; Figure 6 This is a structural diagram of the fixed mechanism; Figure 7 This is an exploded view of the casing and sealing cap.

[0014] The following components are labeled in the attached diagram: 1. Base plate; 2. Support; 3. Fixing frame; 4. Electrolyte storage tank; 5. Delivery pump; 6. Delivery pipe; 7. Filling head; 8. Indexing plate; 9. Three-jaw chuck; 10. Hydraulic cylinder; 11. Push rod; 12. Fixing column; 13. Sliding column; 14. Laser welding head; 15. Support plate; 16. Servo electric cylinder; 17. Push rod; 18. Sliding rod; 19. Moving plate; 20. Linear module; 21. Sliding block; 22. Connecting plate; 23. Glue gun; 24. Housing; 25. Sealing cap. Detailed Implementation

[0015] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. This utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to make the disclosure of this utility model more thorough and complete.

[0016] Example 1 like Figures 1 to 7 The assembly device for the negative electrode-free sodium-ion battery of this utility model includes a base plate 1, a support 2, a filling mechanism, a sealing mechanism, a fixing mechanism, and a lifting mechanism. The support 2 is mounted on the base plate 1 via the lifting mechanism, which is used to lift and lower the support 2. The fixing mechanism is mounted on the upper end of the support 2 and has a fixing function. Both the filling mechanism and the sealing mechanism are mounted on the base plate 1. The filling mechanism has a filling function, and the sealing mechanism has a sealing function. During the filling process of assembling the negative electrode-free sodium-ion battery, the sodium-ion battery casing 24 with the electrode plates installed is first placed through the fixing mechanism. After fixing, electrolyte is filled into the housing 24 through the filling mechanism. After filling, the sealing cap 25 is fastened to the filling port at the upper end of the housing 24. Then, the sealing mechanism fixes and welds the butt joint between the sealing cap 25 and the housing 24, so that the sealing cap 25 is fixed at the filling port at the upper end of the housing 24, thus sealing the housing 24. When assembling a negative electrode-free sodium-ion battery, not only can electrolyte be filled into the housing 24, but the housing 24 can also be sealed without transferring it, which improves the overall assembly efficiency, is convenient to use, and has high practicality.

[0017] like Figure 1 and Figure 5The filling mechanism includes a fixed frame 3, an electrolyte storage tank 4, a delivery pump 5, a delivery pipe 6, and a filling head 7. The fixed frame 3 is fixedly installed on the upper end of the base plate 1, and the electrolyte storage tank 4 is fixedly installed on the base plate 1. The input end of the delivery pump 5 is connected to the electrolyte storage tank 4, and the output end of the delivery pump 5 is connected to the filling head 7 through the delivery pipe 6. The filling head 7 is equipped with a solenoid valve and is located above the fixed mechanism. When filling the shell 24 with electrolyte, the shell 24 is first fixed by the fixed mechanism. At this time, the filling port at the upper end of the shell 24 is located below the filling head 7. Then, the fixed mechanism is used to adjust the height of the shell 24 through the lifting mechanism so that the distance between the shell 24 and the filling head 7 is a suitable distance for filling. Then, the delivery pump 5 is turned on so that the electrolyte in the electrolyte storage tank 4 enters the filling port of the shell 24 through the delivery pump 5, the delivery pipe 6, and the filling head 7 in sequence, thereby allowing the electrolyte to enter the shell 24 through the filling port, which facilitates the filling of the shell 24.

[0018] like Figure 1 and Figure 6 The fixing mechanism includes an indexing plate 8 and a three-jaw chuck 9. The indexing plate 8 is fixedly installed on the upper end of the support 2, and the three-jaw chuck 9 is fixedly installed on the rotating end of the indexing plate 8. When filling the housing 24, the housing 24 is first fixed by the three-jaw chuck 9, and then the housing 24 is filled and sealed, which improves the stability of the housing 24 during the assembly process.

[0019] like Figure 4 The lifting mechanism includes a hydraulic cylinder 10, a push rod 11, a fixed column 12, and a sliding column 13. The hydraulic cylinder 10 is fixedly installed on the base plate 1, and the output end of the hydraulic cylinder 10 is provided with the push rod 11. The fixed column 12 is fixedly installed on the base plate 1, and the lower part of the sliding column 13 is slidably installed on the fixed column 12. The support platform 2 is fixedly installed on the upper end of the push rod 11 and the sliding column 13. When the housing 24 is fixed by the three-jaw chuck 9, the hydraulic cylinder 10 is opened, and the hydraulic cylinder 10 causes the push rod 11 to adjust its height, which in turn causes the support platform 2 to drive the indexing plate 8 and the three-jaw chuck 9 to adjust their height, thereby adjusting the height of the housing 24. The housing 24 can be adjusted to a suitable operating height according to the assembly requirements. It is convenient to use and has high reliability and practicality.

[0020] like Figure 1 and Figure 3The sealing mechanism includes a laser welding machine and a moving mechanism. The laser welding machine is equipped with a laser welding head 14, which is mounted on the moving mechanism. The moving mechanism is used to move the laser welding head 14 left and right. After the electrolyte is filled into the housing 24, the operator places the sealing cap 25 onto the filling port at the upper end of the housing 24. The lower part of the sealing cap 25 is interference-fitted with the filling port. Then, the lifting mechanism causes the fixing mechanism to adjust the height of the housing 24, adjusting the gap between the housing 24 and the sealing cap 25 in the height direction to align with the laser welding head. The same applies to head 14. Then, the laser welding head 14 is moved by the moving mechanism to a suitable position for welding the sealing cap 25 and the housing 24. Then, the laser welding head 14 is opened, and the high-temperature laser emitted by the laser welding head 14 welds the butt joint of the housing 24 and the sealing cap 25. At the same time, the indexing plate 8 rotates the three-jaw chuck 9, and the three-jaw chuck 9 drives the housing 24 to rotate. During the rotation of the housing 24, the various positions in the circumferential direction of the butt joint between the housing 24 and the sealing cap 25 are welded, thus completing the sealing of the filling port of the housing 24.

[0021] like Figure 3 The moving mechanism includes a support plate 15, a servo cylinder 16, a push rod 17, a sliding rod 18, and a moving plate 19. The support plate 15 is fixedly mounted on the base plate 1, and the servo cylinder 16 is fixedly mounted on the support plate 15. The power output end of the servo cylinder 16 is provided with a push rod 17. The push rod 17 and the sliding rod 18 are both slidably mounted on the support plate 15. The moving plate 19 is fixedly mounted on the left end of the push rod 17 and the sliding rod 18, and the laser welding head 14 is fixedly mounted on the left end of the moving plate 19. When the sealing cap 25 is welded to the filling port of the housing 24 through the laser welding head 14, the servo cylinder 16 is opened, causing the push rod 17 to drive the moving plate 19 to move to the left, thereby causing the laser welding head 14 to move to the left, so that the distance between the laser welding head 14 and the butt joint between the sealing cap 25 and the housing 24 is a suitable welding distance. Then the laser welding head 14 is opened, so that the laser welding head 14 welds the butt joint between the sealing cap 25 and the housing 24.

[0022] A weighing scale is installed on the upper end of the support 2, and a fixing mechanism is installed on the upper end of the weighing scale. When electrolyte is poured into the housing 24, the weight change is monitored by the weighing scale, and the amount of electrolyte poured into the housing 24 can be estimated.

[0023] A light is installed on the base plate 1; this feature makes the area above the base plate 1 brighter, facilitating observation of the filling and sealing operations.

[0024] Example 2 Based on Embodiment 1, the system further includes a linear module 20, a sliding block 21, a connecting plate 22, and a glue gun 23. The linear module 20 is fixedly mounted on the base plate 1. The linear module 20 is provided with a sliding block 21, which is used to move the sliding block 21 left and right. A support plate is provided at the upper end of the sliding block 21. The connecting plate 22 is fixedly mounted on the support plate, and the glue gun 23 is fixedly mounted on the connecting plate 22. After the sealing cap 25 is fixedly welded to the filling port on the upper part of the housing 24, the lifting mechanism causes the support 2 to drive the fixing mechanism and the housing 24 to adjust their height, thereby adjusting the weld between the housing 24 and the sealing cap 25. Adjust the height to match the height of the glue gun 23. Then, move the sliding block 21 to the right via the linear module 20, which in turn moves the connecting plate 22 and the glue gun 23 to the right. Move the output end of the glue gun 23 to a height suitable for applying sealant to the weld between the housing 24 and the sealing cover 25. Then, turn on the glue gun 23 to apply sealant to the weld between the housing 24 and the sealing cover 25. At the same time, the indexing plate 8 drives the three-jaw chuck 9 and the housing 24 to rotate. During the rotation, the glue gun 23 applies sealant to various positions around the weld circumference of the housing 24, improving the sealing performance between the housing 24 and the sealing cover 25.

[0025] It should be noted that: the filling port on the upper part of the housing 24 is coaxial with the housing 24, and an installation groove is provided on the upper part of the filling port. An installation block is provided at the lower end of the sealing cover 25. The installation block and the installation groove are interference-fitted. When the sealing cover 25 is placed on the filling port on the upper part of the housing 24, the installation block at the lower part of the sealing cover 25 is inserted into the installation groove on the housing 24.

[0026] In this case, all electrical equipment is connected to an external controller, which coordinates and controls the operation of each piece of electrical equipment.

[0027] The electrolyte storage tank 4, delivery pump 5, indexing plate 8, three-jaw chuck 9, laser welding head 14, servo electric cylinder 16, linear module 20, and glue gun 23 of the assembly device for the negative electrode-free sodium-ion battery of this utility model are all purchased from the market. Technical personnel in this industry only need to install and operate them according to the accompanying instruction manual, without requiring any creative work from those skilled in the art.

[0028] The above description is only a preferred embodiment of the present utility model. 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 utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. An assembly device for a negative electrode-free sodium-ion battery, comprising a base plate (1) and a support (2); characterized in that, It also includes a filling mechanism, a sealing mechanism, a fixing mechanism and a lifting mechanism. The support (2) is installed on the base plate (1) through the lifting mechanism. The lifting mechanism is used to lift the support (2). The fixing mechanism is installed on the upper end of the support (2). The fixing mechanism has the function of fixing. The filling mechanism and the sealing mechanism are both installed on the base plate (1). The filling mechanism has the function of filling. The sealing mechanism has the function of sealing.

2. The assembly apparatus for a negative electrode-free sodium-ion battery as described in claim 1, characterized in that, The filling mechanism includes a fixed frame (3), an electrolyte storage tank (4), a delivery pump (5), a delivery pipe (6), and a filling head (7). The fixed frame (3) is fixedly installed on the upper end of the base plate (1), the electrolyte storage tank (4) is fixedly installed on the base plate (1), the input end of the delivery pump (5) is connected to the electrolyte storage tank (4), and the output end of the delivery pump (5) is connected to the filling head (7) through the delivery pipe (6). The filling head (7) is equipped with a solenoid valve and is located above the fixed mechanism.

3. The assembly apparatus for a negative electrode-free sodium-ion battery as described in claim 1, characterized in that, The fixing mechanism includes an indexing plate (8) and a three-jaw chuck (9). The indexing plate (8) is fixedly installed on the upper end of the support (2), and the three-jaw chuck (9) is fixedly installed on the rotating end of the upper part of the indexing plate (8).

4. The assembly apparatus for a negative electrode-free sodium-ion battery as described in claim 1, characterized in that, The lifting mechanism includes a hydraulic cylinder (10), a push rod (11), a fixed column (12), and a sliding column (13). The hydraulic cylinder (10) is fixedly installed on the base plate (1). The output end of the hydraulic cylinder (10) is provided with a push rod (11). The fixed column (12) is fixedly installed on the base plate (1). The lower part of the sliding column (13) is slidably installed on the fixed column (12). The support (2) is fixedly installed on the upper end of the push rod (11) and the sliding column (13).

5. The assembly apparatus for a negative electrode-free sodium-ion battery as described in claim 1, characterized in that, The sealing mechanism includes a laser welding machine and a moving mechanism. The laser welding machine is equipped with a laser welding head (14), which is mounted on the moving mechanism. The moving mechanism is used to move the laser welding head (14) left and right.

6. The assembly apparatus for a negative electrode-free sodium-ion battery as described in claim 5, characterized in that, The moving mechanism includes a support plate (15), a servo cylinder (16), a push rod (17), a sliding rod (18), and a moving plate (19). The support plate (15) is fixedly installed on the base plate (1), the servo cylinder (16) is fixedly installed on the support plate (15), and the power output end of the servo cylinder (16) is provided with a push rod (17). The push rod (17) and the sliding rod (18) are both slidably installed on the support plate (15) from left to right. The moving plate (19) is fixedly installed on the left end of the push rod (17) and the sliding rod (18), and the laser welding head (14) is fixedly installed on the left end of the moving plate (19).

7. The assembly apparatus for a negative electrode-free sodium-ion battery as described in claim 1, characterized in that, It also includes a linear module (20), a sliding block (21), a connecting plate (22), and a glue gun (23). The linear module (20) is fixedly installed on the base plate (1). The linear module (20) is provided with a sliding block (21). The linear module (20) is used to move the sliding block (21) left and right. The upper end of the sliding block (21) is provided with a support plate. The connecting plate (22) is fixedly installed on the support plate. The glue gun (23) is fixedly installed on the connecting plate (22).

8. The assembly apparatus for a negative electrode-free sodium-ion battery as described in claim 1, characterized in that, The base plate (1) is equipped with a lighting lamp.

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