A sodium battery box module cell assembling equipment

Abstract

The application relates to the technical field of battery cell assembly, in particular to a sodium battery box body module battery cell assembly device, which comprises first threaded rods and third threaded rods arranged horizontally and vertically, the first threaded rods and the third threaded rods are linked and arranged, the first threaded rods can simultaneously make two end plates close to the battery cell, the third threaded rods can simultaneously make two side plates close to the battery cell, the end plates first abut against the battery cell, and the side plates later abut against the battery cell. Through the device, workers only need to place the battery cell, then rotate the threaded rods to complete the clamping steps of the side plates and the end plates on the battery cell, and finally perform locking work. Since the clamping work is performed through the tool, the hands of the workers are liberated, the subsequent locking steps can be better performed, the efficiency of the whole assembly process is improved, and the assembly difficulty of the workers is reduced.

Description

Technical Field

[0001] This invention relates to the field of battery cell assembly technology, and more particularly to a sodium battery housing module battery cell assembly equipment. Background Technology

[0002] A battery module mainly consists of multiple battery cells, two end plates, and two side plates. During assembly, workers manually insert the end plates, battery cells, and side plates according to the assembly process. After assembly, the two end plates are connected to the two side plates as a whole (e.g., by snap-fit ​​connection, bolt connection, etc.), which can fix the battery cells within the cubic space enclosed by the end plates and side plates, thus assembling the battery module.

[0003] Because workers lack specialized installation fixtures, installation efficiency is low and the quality of installation varies, affecting the quality of battery modules. Summary of the Invention

[0004] The purpose of this invention is to solve the problem that workers do not have special installation fixtures during cell assembly, resulting in low installation efficiency and inconsistent installation quality, which affects the quality of battery modules. Therefore, this invention proposes a sodium battery box module cell assembly equipment.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A sodium battery module cell assembly device is disclosed. The module cell includes stacked cells, two end plates located at both ends of the cells along the stacking direction, and two side plates located on both sides of the cells. The assembly device includes a frame, a first threaded rod and a third threaded rod rotatably connected to the frame, and a support plate fixed relative to the frame. The support plate can support the stacking of cells. The first threaded rod and the third threaded rod are horizontally arranged and vertically placed. The first threaded rod and the third threaded rod are linked together. The first threaded rod can cause the two end plates to move closer to the cells simultaneously, and the third threaded rod can cause the two side plates to move closer to the cells simultaneously. The end plates first abut against the cells, and the side plates abut against the cells later.

[0007] The end plate has vertically arranged second mounting holes on both sides. The side plate has a limiting edge around its perimeter on the side closest to the battery cell. The limiting edge and the side plate form a limiting space. The limiting edge has a vertically arranged first mounting hole. During assembly, the two end plates abut against the two ends of the stacked battery cell. The side plate abuts against the two sides of the stacked battery cell, and the end plate and battery cell are limited inside the limiting edge. The battery cell, side plate and end plate are fixed together by studs passing through the first mounting hole and the second mounting hole.

[0008] A first nut seat is installed at the bottom of the end plate. The first nut seat is threadedly connected to the first threaded rod. The first nut seat and the end plate are elastically detachable to enable the end plate to have an elastic abutment function along the cell stacking direction. A third nut seat is installed at the bottom of the side plate. The third nut seat is threadedly connected to the third threaded rod. The third nut seat and the side plate are elastically detachable to enable the side plate to have an elastic abutment function along the cell width direction.

[0009] The first threaded rod is connected to a first bevel gear, and the third threaded rod is connected to a third bevel gear. The first bevel gear and the third bevel gear mesh and drive each other.

[0010] The assembly equipment includes a second threaded rod that is vertically arranged and rotatably connected to the frame. The second threaded rod is pulsatorically connected to the first threaded rod or to the third threaded rod. The second threaded rod is threadedly connected to a second nut seat. A limiting support is fixedly installed on the second nut seat. The limiting support enables the battery cells to be neatly stacked on the support plate. After the limiting support moves away from the battery cell, the end plate abuts against the battery cell.

[0011] The first threaded rod is driven by a first bevel gear, the third threaded rod is driven by a third bevel gear, and the second threaded rod is driven by a second bevel gear. The first bevel gear, the second bevel gear, and the third bevel gear mesh and drive each other. The number of teeth of the second bevel gear is less than the number of teeth of the first bevel gear, and the number of teeth of the first bevel gear is less than the number of teeth of the third bevel gear.

[0012] The sodium battery box module cell assembly equipment proposed in this invention has the following advantages: With this device, workers only need to place the cells and then rotate the threaded rod to complete the clamping steps of the side plate and end plate on the cells, and finally perform the locking work. Since the clamping work is performed by this tooling, the workers' hands are freed up, and they can better perform the subsequent locking steps, improve the efficiency of the entire assembly process, and reduce the assembly difficulty for workers. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural diagram of the present invention in use;

[0014] Figure 2 for Figure 1 Top view of the structure;

[0015] Figure 3 This is a schematic diagram of a second embodiment of the limiting support member of the present invention;

[0016] Figure 4 This is a schematic diagram of the three bevel gear meshing transmission structure of the present invention;

[0017] Figure 5 This is a schematic diagram of the assembled module battery cell of the present invention.

[0018] In the diagram: 1. Side plate; 2. Battery cell; 3. Limiting edge; 4. First mounting hole; 5. Second mounting hole; 6. End plate; 7. First nut seat; 8. First threaded rod; 9. Limiting support; 10. First bevel gear; 11. Second threaded rod; 12. Second bevel gear; 13. Third bevel gear; 14. Support plate; 15. Second nut seat; 16. Third threaded rod; 17. Third nut seat. Detailed Implementation

[0019] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0020] Reference Figure 1-5 A sodium battery module cell assembly device is disclosed. The module cell includes a stacked cell 2, two end plates 6 located at both ends of the cell 2 along the stacking direction, and two side plates 1 located on both sides of the cell 2. The cell 2 is stacked in one direction and encapsulated between the two end plates 6 and the two side plates. The assembly device includes a frame, a first threaded rod 8 and a third threaded rod 16 rotatably connected to the frame, and a support plate 14 fixed relative to the frame. The support plate 14 can support the stacking of the cell 2. The first threaded rod 8 and the third threaded rod 16 are horizontally arranged and vertically placed. The first threaded rod 8 and the third threaded rod 16 are linked together. The first threaded rod 8 can make the two end plates 6 approach the cell 2 simultaneously, and the third threaded rod 16 can make the two side plates 1 approach the cell 2 simultaneously. The end plates 6 first abut against the cell 2, and the side plates 1 abut against the cell 2 later. The contact sequence of the end plates 6 and the side plates 1 with the cell 2 is controlled by different transmission ratios.

[0021] Because the first threaded rod 8 and the third threaded rod 16 are linked, only one threaded rod needs to be rotated. This can be done manually or by a motor. When using this device, the worker stacks multiple battery cells 2 on the support plate 14, then rotates the first threaded rod 8 or the third threaded rod 16. First, the two end plates 6 abut against the battery cells 2, clamping the stacked cells 2. As the threaded rod continues to move, the two side plates 1 clamp the end plates 6 and the battery cells 2. Then, the worker only needs to lock the side plates 1 to the end plates 6 using bolts or clips, completing the assembly of the module battery cells. With this device, the worker only needs to place the battery cells 2, then rotate the threaded rod to complete the clamping steps of the side plates and end plates, and finally lock them in place. Because this fixture frees the worker's hands, it allows for better subsequent locking steps, improving the efficiency of the entire assembly process and reducing the assembly difficulty.

[0022] The end plate 6 has vertically arranged second mounting holes 5 on both sides. The side plate 1 has a limiting edge 3 around the side near the battery cell 2. The limiting edge 3 and the side plate 1 form a limiting space. The limiting edge 3 has a vertically arranged first mounting hole 4. During assembly, the two end plates 6 abut against the two ends of the stacked battery cell 2, the side plate 1 abuts against the two sides of the stacked battery cell 2, and the end plate 6 and the battery cell 2 are limited inside the limiting edge 3. The battery cell 2, the side plate 1 and the end plate 6 are fixed together by passing the first mounting hole 4 and the second mounting hole 5 through the stud. The battery cell 2 and the end plate 6 are locked together by the setting of the limiting edge 3 through the side plate 1. Finally, only the stud is needed to lock the three together.

[0023] In one implementation, a first nut seat 7 is installed at the bottom of the end plate 6. The first nut seat 7 is threadedly connected to the first threaded rod 8. The first nut seat 7 and the end plate 6 are elastically detachable so that the end plate 6 has an elastic abutment function along the stacking direction of the battery cells 2. For example, a sliding slider is provided on the first nut seat 7, and a thrust spring is installed between the slider and the first nut seat 7 so that the slider can elastically slide relative to the first nut seat 7. The end plate 6 is detachably mounted on the slider. The detachability can be achieved by fixing a magnetic plate on the slider, and the end plate 6 is magnetically attracted to the magnetic plate. After the assembly is completed, the threaded rod can be directly reversed to slide the end plate. The block can be separated from the end plate; a third nut seat 17 is installed at the bottom of the side plate 1. The third nut seat 17 is threadedly connected to the third threaded rod 16. The third nut seat 17 and the side plate 1 are elastically detachable so that the side plate 1 has an elastic abutment function along the width direction of the cell 2. The installation method of the third nut seat and the side plate can refer to the installation method of the first nut seat 7 and the end plate. The elastic abutment function is set in this device to prevent mechanical jamming. Because the end plate 6 contacts the cell 2 first, the device still needs to continue to move after contact. Therefore, the elastic abutment function is needed to store force and clamp. During the storage of force by the end plate 6, the side plate 1 and the cell 2 are clamping.

[0024] The first threaded rod 8 is connected to the first bevel gear 10, and the third threaded rod 16 is connected to the third bevel gear 13. The first bevel gear 10 and the third bevel gear 13 mesh and drive each other. For example, when the first threaded rod 8 is rotated, the third threaded rod 16 also rotates under the action of the meshing transmission of the bevel gears. In one embodiment, the number of teeth of the first bevel gear 10 is less than the number of teeth of the third bevel gear 13. In this way, the rotational speed of the first threaded rod 8 will be greater than the rotational speed of the third threaded rod 16, so that the end plate 6 contacts the battery cell 2 first, and the side plate 1 contacts the battery cell 2 after the end plate contacts it.

[0025] In one embodiment, the assembly equipment includes a second threaded rod 11 that is vertically arranged and rotatably connected to the frame. The second threaded rod 11 is drivenly connected to the first threaded rod 8 or to the third threaded rod 16. The second threaded rod 11 is threadedly connected to a second nut seat 15. A limiting support 9 is fixedly installed on the second nut seat 15. The limiting support 9 enables the battery cells 2 to be neatly stacked on the support plate 14. After the limiting support 9 moves away from the battery cells 2, the end plate 6 abuts against the battery cells 2.

[0026] Since the battery cells must be stacked neatly, a limiting support 9 is provided to ensure that the battery cells are stacked neatly. The limiting support 9 can be implemented in two ways, such as... Figure 2 Four corner limiters, or as Figure 3 The four corners and two sides are limited to ensure that the battery cells can be stacked neatly. However, this setting of the limiting support 9 will cause interference to the clamping steps of the side plate 1 and the end plate. Therefore, a second threaded rod 11 is set. After the workers stack the battery cells neatly on the support plate 14 by setting different transmission ratios, the second threaded rod 11 is rotated quickly, so that the limiting support 9 is removed from the battery cells first. After that, the side plate 1 and the end plate can move normally.

[0027] In one embodiment, the first threaded rod 8 is driven by the first bevel gear 10, the third threaded rod 16 is driven by the third bevel gear 13, and the second threaded rod 11 is driven by the second bevel gear 12. The first bevel gear 10, the second bevel gear 12, and the third bevel gear 13 mesh and drive each other. The number of teeth of the second bevel gear 12 is less than the number of teeth of the first bevel gear 10, and the number of teeth of the first bevel gear 10 is less than the number of teeth of the third bevel gear 13.

[0028] In use, the limiting support 9 is in its initial state. The worker places the battery cell on the support plate 14 and uses the limiting support 9 to arrange the battery cells neatly. When one of the threaded rods is rotated, the limiting support 9 first moves away from the battery cell 2. Then the end plate 6 moves closer to the battery cell and clamps it elastically. Then the side plate 1 moves closer to the battery cell and end plate and clamps it elastically. Finally, the end plate 6 and the side plate are locked together with bolts, and the battery cell is limited between the end plate 6 and the side plate. Then the threaded rod is rotated in the opposite direction to release and remove the assembled module battery cell, so that the limiting support 9, end plate and side plate are reset.

[0029] Of course, different movement speeds can also be achieved by adjusting the pitch of each threaded rod.

[0030] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technical solution, concept, or design obtained by those skilled in the art by making equivalent substitutions or changes to the technical solution and inventive concept of the present invention within the scope of the technology disclosed in the present invention should be covered within the scope of protection of the present invention.

Claims

1. A sodium battery housing module cell assembly device, wherein the module cell includes stacked cells (2), two end plates (6) located at both ends of the cells (2) along the stacking direction, and two side plates (1) located on both sides of the cells (2), characterized in that, The assembly equipment includes a frame, a first threaded rod (8) and a third threaded rod (16) rotatably connected to the frame, and a support plate (14) fixed relative to the frame. The support plate (14) can support the stacking of the battery cells (2). The first threaded rod (8) and the third threaded rod (16) are horizontally arranged and vertically placed. The first threaded rod (8) and the third threaded rod (16) are linked together. The first threaded rod (8) can make the two end plates (6) move closer to the battery cell (2) at the same time. The third threaded rod (16) can make the two side plates (1) move closer to the battery cell (2) at the same time. The end plate (6) first abuts against the battery cell (2), and the side plate (1) then abuts against the battery cell (2).

2. The sodium battery housing module cell assembly equipment according to claim 1, characterized in that, The end plate (6) has vertically arranged second mounting holes (5) on both sides. The side plate (1) has a limiting edge (3) around the side near the cell (2). The limiting edge (3) and the side plate (1) form a limiting space. The limiting edge (3) has a vertically arranged first mounting hole (4). During assembly, the two end plates (6) abut against the two ends of the stacked cell (2). The side plate (1) abuts against both sides of the stacked cell (2), and the end plate (6) and the cell (2) are limited inside the limiting edge (3). The cell (2), side plate (1) and end plate (6) are fixed together by passing studs through the first mounting hole (4) and the second mounting hole (5).

3. The sodium battery housing module cell assembly equipment according to claim 2, characterized in that, The end plate (6) is equipped with a first nut seat (7) at the bottom. The first nut seat (7) is threadedly connected to the first threaded rod (8). The first nut seat (7) and the end plate (6) are elastically detachable and assembled so that the end plate (6) has an elastic abutment function along the stacking direction of the battery cell (2). The side plate (1) is equipped with a third nut seat (17) at the bottom. The third nut seat (17) is threadedly connected to the third threaded rod (16). The third nut seat (17) and the side plate (1) are elastically detachable and assembled so that the side plate (1) has an elastic abutment function along the width direction of the battery cell (2).

4. The sodium battery housing module cell assembly equipment according to claim 3, characterized in that, The first threaded rod (8) is connected to the first bevel gear (10), and the third threaded rod (16) is connected to the third bevel gear (13). The first bevel gear (10) and the third bevel gear (13) mesh and drive each other.

5. The sodium battery housing module cell assembly equipment according to claim 1, characterized in that, The assembly equipment includes a second threaded rod (11) that is vertically arranged and rotatably connected to the frame. The second threaded rod (11) is operatively connected to the first threaded rod (8) or the second threaded rod (11) is operatively connected to the third threaded rod (16). The second threaded rod (11) is threadedly connected to a second nut seat (15). A limiting support (9) is fixedly installed on the second nut seat (15). The limiting support (9) enables the battery cells (2) to be neatly stacked on the support plate (14). After the limiting support (9) leaves the battery cell (2), the end plate (6) abuts against the battery cell (2).

6. The sodium battery housing module cell assembly equipment according to claim 5, characterized in that, The first threaded rod (8) is connected to the first bevel gear (10), the third threaded rod (16) is connected to the third bevel gear (13), and the second threaded rod (11) is connected to the second bevel gear (12). The first bevel gear (10), the second bevel gear (12), and the third bevel gear (13) mesh and drive each other. The number of teeth of the second bevel gear (12) is less than the number of teeth of the first bevel gear (10), and the number of teeth of the first bevel gear (10) is less than the number of teeth of the third bevel gear (13).

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