Auxiliary tool for assembling lower-layer steel belt of battery cell module and assembling system

Abstract

The utility model relates to the field of new energy battery manufacturing equipment, in particular to an auxiliary tool and an assembling system for assembling a lower-layer steel belt of a battery cell module, and the auxiliary tool comprises a base, two jacking rods oppositely arranged on the base, and a driving piece connected with the jacking rods, the jacking rod is provided with a clamping groove used for fixing the lower-layer steel belt, and the driving piece can drive the jacking rod to ascend so that the lower-layer steel belt can move upwards or drive the jacking rod to descend so that the lower-layer steel belt can move downwards. When the auxiliary tool is used for assembling the lower-layer steel belt, battery cell damage or safety risks caused by manual operation can be avoided, and the technical effect of improving the mounting efficiency is achieved.

Description

Technical Field

[0001] The utility model relates to the field of new energy battery manufacturing equipment, and in particular to an auxiliary tooling and an assembly system for assembling a lower steel strip of a battery core module. Background Art

[0002] During the battery cell module stacking process, the steps for installing the lower steel belt using the existing operating table are as follows: first, weld the ends of the steel belt together to form a ring-shaped steel belt, pre-insert the lower steel belt into the lower groove of the extrusion operating table at the steel belt assembly station, and then place the end plates at both ends into the tooling slots at both ends to fix them. Press the run button on the operating table to enter the battery cell stacking process. After stacking to the required length, the operating table will extrude. After extrusion to the required length, the equipment exits the stacking station and returns to the steel belt assembly station. The operator uses a screwdriver to pry one side of the ring-shaped steel belt to insert the steel belt into the limit groove on the module end plate, and then pry the other side of the steel belt into the limit groove to complete the steel belt assembly. However, the operating table does not have a module side flatness limit tool; manually assembling the lower steel belt will further bring the following shortcomings:

[0003] 1. The battery cell modules are repeatedly moved during the stacking process and the steel strip assembly process, resulting in a waste of manpower and electricity;

[0004] 2. Since there is no flatness limit fixture on both sides of the module during the steel belt assembly process, uneven force will be applied during manual operation during steel belt assembly, causing the module to tilt, and the steel belt alone cannot maintain the flatness of the side.

[0005] 3. Operators using screwdrivers to pry may risk damaging the steel belt and module end plate, and the direction of force cannot be controlled during the operation, which also poses safety and insulation risks.

[0006] 4. It is impossible to effectively deal with the impact of the thickness of the incoming battery cells. Since the battery cells themselves have a "tower-shaped" structure that is thin at the top and thick at the bottom, if the battery cells are too thick, it is not enough to complete the assembly by simply prying the lower steel strip with a screwdriver, and the battery cells need to be over-squeezed again for assembly, which poses a risk of damaging the battery cells. Utility Model Content

[0007] The purpose of the present utility model is to overcome the technical problems in the prior art such as low operating efficiency caused by the manual assembly of the lower steel strip, and the possibility of damage to the battery cell or safety risks, and to provide an auxiliary tooling and assembly system for assembling the lower steel strip of the battery cell module.

[0008] In the first aspect, the utility model provides an auxiliary tooling for assembling the lower steel strip of the battery cell module, comprising a base, two lifting rods relatively arranged on the base, and a driving member connected to the lifting rods, wherein the lifting rods are provided with a slot for fixing the lower steel strip, and the driving member can drive the lifting rods to rise to move the lower steel strip upward or drive the lifting rods to descend to move the lower steel strip downward.

[0009] Compared with the technical defects of low assembly efficiency, damage to battery cells or safety risks caused by manual assembly of the lower steel strip, the present application adopts auxiliary tooling to assemble the lower steel strip of the battery cell module to replace manual assembly, which can effectively avoid the above technical problems. Specifically, the base of the auxiliary tooling for assembling the lower steel strip of the battery cell module in the present application can be the lower groove of the existing extrusion operating table, or it can be used as the bottom plate in the auxiliary tooling. The lifting plate in the extrusion operating table can be placed on the base and the lifting plate can be raised to the position above the lower steel strip. The battery cell module placed on the lifting plate can also be located above the lower steel strip. After the battery cell modules are stacked and extruded into place, the lifting rod can be driven by the driving member to simultaneously drive the lower steel strip upward, and the lower steel strip moves up to the end plate of the battery cell module. After the upper and lower steel belt limit blocks are in the limit groove formed between the upper and lower steel belt limit blocks, it can be tightly clamped on the steel belt limit block above. At this time, the steel belt will produce a certain elastic deformation and be in a stretched state. Moving the jacking rod downward again can make the steel belt disengage from the slot of the jacking rod. The steel belt can maintain the height after jacking, and can restore a certain elastic deformation after the jacking rod is moved down and disengaged, so that the steel belt can be clamped into the limit groove on the end plate of the battery cell module and placed between the upper and lower steel belt limit blocks, but it can still maintain sufficient tension to be tightly clamped on the battery cell module. The auxiliary tooling of the present application can realize the function of assembling the lower steel belt by moving the jacking rod upward. Using the auxiliary tooling of the present application to assemble the lower steel belt can avoid damage to the battery cell or safety risks caused by manual operation, and achieves the technical effect of improving installation efficiency.

[0010] Preferably, it also includes a side rod connected between the two lifting rods, a slider is provided at one end of the lifting rod, and a first sliding groove cooperating with the slider is opened in the length direction of the side rod, and the lifting rod can slide along the first sliding groove so that the distance between the two lifting rods can be adjusted.

[0011] Preferably, a stopper for limiting the movement of the battery cell module is provided on the base.

[0012] Preferably, it further comprises a limiting mechanism connected between the side rods and the base, wherein the limiting mechanism is used to stabilize the movement of the side rods and the lifting rod in the vertical direction.

[0013] Preferably, the limiting mechanism includes a sliding rod, the upper end of the sliding rod is hinged to the side rod, a second sliding groove is provided on the base, and the lower end of the sliding rod is arranged in the second sliding groove and can slide along the second sliding groove.

[0014] Preferably, the limiting mechanism includes a sliding rod, the lower end of the sliding rod is hinged to the base, a second sliding groove is provided on the side rod, and the upper end of the sliding rod is arranged in the second sliding groove and can slide along the second sliding groove.

[0015] Preferably, a pulley is installed at one end of the sliding rod arranged in the second sliding groove.

[0016] Preferably, a positioning protrusion is provided on the lifting rod, and the positioning protrusion is used to locate the position of the butt joint of the lower steel strip when the lower steel strip is fixed in the slot.

[0017] Preferably, the driving member is a hydraulic cylinder.

[0018] In the second aspect, the utility model provides an assembly system for the lower steel strip of the battery cell module, including the auxiliary tooling for assembling the lower steel strip of the battery cell module as described above, and also including a lifting plate arranged between the two lifting rods, and two extrusion plates arranged relatively spaced apart, the battery cell module can be placed on the lifting plate and move up and down with the lifting plate; the two extrusion plates can be placed on both sides of the battery cell module and extrude the battery cell module.

[0019] The assembly system of the lower steel strip of the battery cell module of the utility model can use the lifting plate to lift the battery cell module so that it is higher than the lower steel strip fixed on the lifting rod, and the battery cell module can be stacked and squeezed by the extrusion plate. After the extrusion is in place, the lifting rod can be driven by the driving member to drive the lower steel strip upward, and the lower steel strip can be put on the outside of the battery cell module from bottom to top. After the steel strip is moved up to the limit groove on the end plate of the battery cell module, the steel strip can be stabilized by the tightening force of the steel strip on the protrusion on the end plate of the battery cell module. The lifting rod can be moved down again to achieve the separation of the steel strip from the slot. After the steel strip is separated from the slot, it can restore a certain elastic deformation by itself, but it can still maintain sufficient tightening force and be embedded in the limit groove of the end plate of the battery cell module to be tightly clamped on the battery cell module. The assembly system of the lower steel strip of the battery cell module of the utility model can improve the installation efficiency of the lower steel strip, reduce safety risks and the probability of damage to the battery cell module.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] 1. The utility model provides an auxiliary tooling for assembling the lower steel strip of the battery cell module. The auxiliary tooling is used to assemble the lower steel strip of the battery cell module to replace the manual assembly method, which can effectively avoid technical problems such as low assembly efficiency, damage to the battery cell or safety risks. Specifically, the base of the auxiliary tooling for assembling the lower steel strip of the battery cell module of the present application can be the lower groove of the existing extrusion operating table, or it can be used as the bottom plate of the auxiliary tooling. The lifting plate in the extrusion operating table can be placed on the base and the lifting plate can be raised to be located above the lower steel strip. The battery cell module placed on the lifting plate can also be located above the lower steel strip. After the battery cell modules are stacked and extruded into place, the lifting rod can be driven by the driving member to simultaneously drive the lower steel strip to move up, and the lower After the layer of steel belt moves up to the limit groove on the end plate of the battery cell module, it can be tightly clamped on the protrusion on the end plate of the battery cell module. At this time, the steel belt will produce a certain elastic deformation and be in a stretched state. Moving the lifting rod downward again can make the steel belt disengage from the card slot of the lifting rod. The steel belt can maintain the height after jacking, and can restore a certain elastic deformation after the lifting rod moves down and disengages, so that the steel belt can be stuck in the limit groove on the end plate of the battery cell module, but can still maintain sufficient tension to tightly clamp the battery cell module. The auxiliary tooling of the present application can realize the function of assembling the lower steel belt by moving the lifting rod upward. Using the auxiliary tooling of the present application to assemble the lower steel belt can avoid damage to the battery cell or safety risks caused by manual operation, and achieves the technical effect of improving installation efficiency.

[0022] 2. The utility model provides an assembly system for the lower steel strip of the battery cell module. The assembly system for the lower steel strip of the battery cell module of the utility model can use the jacking plate to lift the battery cell module so that it is higher than the lower steel strip fixed on the jacking rod, and the battery cell module can be stacked and squeezed by using the extrusion plate. After being squeezed into place, the jacking rod can be driven by the driving member to drive the lower steel strip to move upward, and the lower steel strip can be put on the outside of the battery cell module from bottom to top. After the steel strip is moved up to the limiting groove on the end plate of the battery cell module, the steel strip can be stabilized by the tightening force of the steel strip on the protrusion on the end plate of the battery cell module, and the jacking rod can be moved downward to achieve the separation of the steel strip from the slot. After the steel strip is separated from the slot, it can restore a certain elastic deformation by itself, but can still maintain sufficient tightening force and be embedded in the limiting groove of the end plate of the battery cell module to be tightly clamped on the battery cell module. The assembly system of the lower steel strip of the battery cell module of the present invention can improve the installation efficiency of the lower steel strip, reduce safety risks and the probability of damaging the battery cell module. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a three-dimensional structural diagram of the auxiliary tooling for assembling the lower steel strip of the battery module of the present invention (showing the battery module).

[0024] Figure 2 This is a first-perspective stereoscopic structural diagram of the auxiliary tooling for assembling the lower steel strip of the battery module of the utility model (with the battery module hidden).

[0025] Figure 3 This is a second perspective stereoscopic structural diagram of the auxiliary tooling for assembling the lower steel strip of the battery module of the utility model (with the battery module hidden).

[0026] Figure 4 This is a top view of the auxiliary tooling for assembling the lower steel strip of the battery module according to the present invention.

[0027] Figure 5 This is a side view of the auxiliary tooling for assembling the lower steel strip of the battery module according to the present invention.

[0028] Figure 6 for Figure 1 Partial schematic diagram at point A in the middle.

[0029] Figure 7 This is a schematic diagram of the coordination of the limit grooves between the lower steel belt and the upper steel belt limit blocks of the battery module.

[0030] Markings in the figure:

[0031] 1. Lifting rod, 11. Slot, 12. Slider, 13. Positioning bump, 2. Driving member, 3. Side rod, 31. First slide, 4. Base, 41. Second slide, 5. Stopper, 6. Slide, 61. Pulley, 7. Battery module, 71. Steel belt limit block, 8. Lower steel belt. DETAILED DESCRIPTION

[0032] The present invention will be further described in detail below with reference to specific embodiments. However, this should not be construed as limiting the scope of the present invention to the following embodiments. All technologies implemented based on the present invention fall within the scope of the present invention.

[0033] Unless otherwise specified, in the description of the specific embodiments of the present invention, the terms "upper," "lower," "left," "right," "center," "inside," "outside," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings, or are the orientation or positional relationships in which the product / device / apparatus of the present invention is typically placed when in use. These terms of orientation or positional relationships are intended solely to facilitate the description of the present invention or to simplify the description of the specific embodiments, so that technicians can quickly understand the solutions. They do not indicate or imply that a particular device / component / element must have a specific orientation or be constructed and operated in a specific positional relationship. Therefore, they should not be construed as limitations on the present invention.

[0034] In addition, if the terms "horizontal", "vertical", "overhanging", "parallel" and the like appear, it does not mean that the corresponding devices / components / elements are required to be absolutely horizontal or vertical or overhanging or parallel, but may be slightly tilted or have deviations. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but may be slightly tilted. Alternatively, it can be simply understood that the corresponding devices / components / elements are set in directions such as "horizontal", "vertical", "overhanging", and "parallel", and can have an error / deviation of ±10% relative to the corresponding direction setting, more preferably an error / deviation within ±8%, more preferably an error / deviation within ±6%, more preferably an error / deviation within ±5%, and more preferably an error / deviation within ±4%. As long as the corresponding device / component / element is within the error / deviation range, it can still achieve its role in the solution of the present utility model.

[0035] In addition, the expressions "first", "second", "third", etc. that appear in the terms are merely descriptions used to distinguish the same or similar components and should not be understood as emphasizing or implying the relative importance of specific components.

[0036] In addition, in the description of the embodiments of the present invention, "several", "a plurality", and "a number" represent at least 2. It can be any number such as 2, 3, 4, 5, 6, 7, 8, 9, and even more than 9.

[0037] Furthermore, in the description of the technical solutions of this utility model, unless otherwise expressly specified / defined / restricted, the terms "disposed," "installed," "connected," "connected," "provided with," "laid," and "arranged" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections. They may be welding, riveting, bolting, threading, or other commonly used connection methods in the art. Such connections may be mechanical, electrical, or communication connections; they may be direct connections, indirect connections through an intermediate medium, or internal connections between two components.

[0038] Example 1

[0039] This embodiment provides an auxiliary tool for assembling the lower steel strip of the battery cell module.

[0040] Figure 1 This is a three-dimensional structural diagram of the auxiliary tooling for assembling the lower steel strip of the battery module of the utility model (showing the battery module); Figure 2 This is a first-perspective three-dimensional structural diagram of the auxiliary tooling for assembling the lower steel strip of the battery module of the utility model (with the battery module hidden); Figure 3 This is a second perspective structural diagram of the auxiliary tooling for assembling the lower steel strip of the battery module of the utility model (with the battery module hidden); Figure 4 This is a top view of the auxiliary tooling for assembling the lower steel strip of the battery module according to the present invention;

[0041] Figure 5 This is a side view of the auxiliary tooling for assembling the lower steel strip of the battery module according to the present invention; Figure 6 for Figure 1 A partial schematic diagram of the middle part; Figure 7 This is a schematic diagram of the coordination of the limit grooves between the lower steel belt and the upper steel belt limit blocks of the battery module.

[0042] like Figures 1 to 7 As shown in , the auxiliary tooling for assembling the lower steel strip of the battery cell module described in this embodiment may include two jacking rods 1 arranged opposite to each other, and a driving member 2 installed at the bottom of the jacking rod 1. The jacking rod 1 is provided with a slot 11 for fixing the lower steel strip 8. The two jacking rods 1 can be placed on both sides of the battery cell module 7 respectively. The driving member 2 can push the jacking rod 1 to move upward so that the lower steel strip 8 is sleeved on the battery cell module 7. The driving member 2 can also drive the jacking rod 1 to move down and return to the initial position. Specifically, the lower steel strip 8 can be an annular steel strip that is butt-jointed end to end and can be used to tightly clamp the lower half of the battery cell module 7. Before using the lifting rods 1 to install the lower steel strip 8, two lifting rods 1 can be set on both sides of the battery cell module 7, and the steel strip can be clamped in the clamping grooves 11 on the lifting rods 1. During the extrusion and stacking process of the battery cell modules 7, the lifting rods 1 can be driven by the driving member 2 to drive the lower steel strip 8 upward, so that the lower steel strip 8 is sleeved on the battery cell module 7 to complete the assembly of the steel strip. The steel strip can be inserted into the groove on the battery cell module 7 to be installed in place, and the driving member 2 can then be used to drive the lifting rods 1 downward to restore it to its initial position.

[0043] Compared with the technical defects of low assembly efficiency and possible damage to the battery cells or safety risks caused by manual assembly of the lower steel strip 8, the present application adopts auxiliary tooling to assemble the lower steel strip 8 of the battery cell module 7 to replace manual assembly, which can effectively avoid the above technical problems. Specifically, the base 4 in the auxiliary tooling for assembling the lower steel strip 8 of the battery cell module 7 of the present application can be the lower groove of the existing extrusion operating table, or it can be used as the bottom plate in the auxiliary tooling. The lifting plate in the extrusion operating table can be placed on the base 4 and the lifting plate can be raised to be located above the lower steel strip 8. The battery cell module 7 placed on the lifting plate can also be located above the lower steel strip 8. After the battery cell modules 7 are stacked and extruded into place, the lifting rod 1 can be driven by the driving member 2 to simultaneously drive the lower steel strip 8 to move up, and the lower steel strip 8 moves up to the end plate of the battery cell module 7. After the limit groove is formed between the upper and lower steel belt limit blocks 71, it can be tightly clamped on the steel belt limit block 71 located above. At this time, the steel belt will produce a certain elastic deformation and be in a stretched state. Moving the lifting rod 1 downward again can make the steel belt disengage from the card slot 11 of the lifting rod 1. The steel belt can maintain the height after jacking, and can restore a certain elastic deformation after the lifting rod 1 moves down and detaches. The steel belt can be stuck in the limit groove on the end plate of the battery module 7 and placed between the upper and lower steel belt limit blocks 71, but it can still maintain sufficient tension to be tightly clamped on the battery module 7. The auxiliary tooling of the present application can realize the function of assembling the lower steel belt 8 by moving the lifting rod 1 upward. Using the auxiliary tooling of the present application to assemble the lower steel belt 8 can avoid damage to the battery cell or safety risks caused by manual operation, thereby achieving the technical effect of improving installation efficiency.

[0044] In this embodiment, the auxiliary tooling for assembling the lower steel strip of the battery cell module may further include a side bar 3 connected between the two lifting rods 1. Specifically, the side bar 3 can be installed between the two lifting rods 1 on both sides of the battery cell module 7 to connect the two lifting rods 1 to form an integral structure.

[0045] In this embodiment, a slider 12 may be provided at one end of the lifting rod 1, and a first slot 31 may be provided on the side rod 3 to cooperate with the slider 12, so that the lifting rod 1 can slide along the first slot 31. Specifically, the slider 12 may be a T-shaped slider, and the first slot 31 may be a T-shaped slot that matches the T-shaped slider. The slider 12 and the first slot 31 cooperate with each other to allow the lifting rod 1 to slide along the first slot 31, that is, the side rod 3, thereby adjusting the distance between the two lifting rods 1. This allows the tooling to adapt to the length and size of various types of battery modules 7. In other words, for battery modules 7 of different sizes, the distance between the two lifting rods 1 can be directly adjusted by sliding the lifting rod 1 to achieve adaptive adjustment. However, the present invention is not limited to this. The lifting rod 1 and the side rod 3 may also cooperate through other cooperation relationships, such as a gear rack cooperation, as long as the distance between the two lifting rods 1 can be adjusted. The present invention is not specifically limited to this.

[0046] In this embodiment, the auxiliary tooling for assembling the lower steel strip of the battery module may further include a base 4 mounted below the driver 2. Specifically, the base 4 may be used to mount components such as the driver 2, the lifting rod 1, and the side rods 3. In other words, the driver 2, the lifting rod 1, and the side rods 3 may be mounted together on the base 4. The base 4 may also be used to place the battery module 7, and the base 4 may support the components mounted thereon.

[0047] Optionally, the base 4 may be provided with a stopper 5 for limiting the movement of the cell module 7. The stopper 5 may be positioned so as to contact the bottom of the cell module 7, thereby preventing the cell module 7 from lateral displacement during stacking, extrusion, and steel strip assembly. However, the present invention is not limited thereto; the component used to limit the movement of the cell module 7 may also be other components besides the stopper 5, such as a limiting step, and this is not specifically limited in the present invention.

[0048] In this embodiment, the auxiliary tooling for assembling the lower steel belt of the battery cell module may also include a limiting mechanism connected between the side rod 3 and the base 4. Specifically, the limiting mechanism may include a slide rod 6, the upper end of the slide rod 6 is hinged to the side rod 3, and a second slide groove 41 is provided on the base 4. The lower end of the slide rod 6 is arranged in the second slide groove 41 and can slide along the second slide groove 41; here, the slide rod 6 is arranged between the base 4 and the side rod 3. It can mainly help to maintain the balance of the left and right ends of the lifting rod 1 when it moves up and down, so that the steel belt can be kept horizontal in the width direction of the battery cell module 7 during assembly.

[0049] Optionally, the auxiliary tooling for assembling the lower steel strip of the battery module may further include a limiting mechanism connected between the side bar 3 and the base 4. Specifically, the limiting mechanism may include a slide bar 6, the lower end of which is hinged to the base 4, and a second slide groove 41 is provided on the side bar 3. The upper end of the slide bar 6 is disposed in the second slide groove 41 and can slide along the slide groove. With respect to the above-mentioned arrangement of the slide bar 6 between the side bar 3 and the base 4, the second slide groove 41 may also be disposed on the side bar 3, the upper end of the slide bar 6 slides in the second slide groove 41, and the lower end of the slide bar 6 is hinged to the base 4. This can also achieve the effect of keeping the lifting rod 1 horizontal during movement.

[0050] In this embodiment, a pulley 61 may be mounted on one end of the slide rod 6 positioned in the second slide groove 41. Specifically, the pulley 61 may be mounted on the end of the slide rod 6 positioned in the second slide groove 41. The pulley 61 can reduce the sliding resistance of the slide rod 6 in the second slide groove 41, thereby making the slide rod 6 slide more smoothly in the second slide groove 41. However, the present invention is not limited to this embodiment. Other components, such as ball bearings, may also be mounted on the end of the slide rod 6 to achieve the same resistance-reducing effect. This is not specifically limited in the present invention.

[0051] It should be noted that the specific structure of the limiting mechanism may be other structures besides the sliding rod 6. For example, the limiting mechanism may also be a telescopic rod arranged between the side rod 3 and the base 4. The telescopic rod can be arranged vertically, so the telescopic direction of the telescopic rod can only be telescoped in the vertical direction, thereby limiting the side rod 3 and the lifting rod 1 to move up and down in the vertical direction. The utility model does not limit the specific form of the limiting mechanism.

[0052] In this embodiment, the lifting rod 1 may be provided with a positioning protrusion 13, which can be used to locate the position of the butt joint of the lower steel strip 8 when the lower steel strip 8 is fixed in the slot 11. Since the lower steel strip 8 is a steel strip that is butt-jointed end to end, it can usually be butt-jointed end to end by welding. A weld seam can usually be formed at the butt joint of the steel strip. The edge of the weld seam is relatively sharp and can easily cut the collection line above the module. Therefore, when assembling the steel strip, the weld seam of the steel strip needs to avoid the position of the collection line. Therefore, the weld seam position of the steel strip can be aligned with the positioning protrusion 13 of the lifting rod 1. The operator can easily locate the weld seam position of the steel strip through the positioning protrusion 13 to install it.

[0053] Alternatively, the drive member 2 may be a hydraulic cylinder. Specifically, the drive member 2 may be a hydraulic cylinder, an air cylinder, a lead screw, or any other form of drive mechanism. The extension and retraction of the hydraulic and air cylinders can be controlled by hydraulic and air sources, while the lead screw can be controlled by a motor. This allows the lifting function of the jacking rod 1 to be automatically controlled, avoiding technical issues such as low efficiency and potential damage to the battery cells or safety risks associated with manual steel strip installation. The specific structural form of the drive member 2 can be selected based on actual operational requirements and is not specifically limited in this invention.

[0054] The following describes in detail the steps of assembling the lower steel strip 8 using the auxiliary tooling for assembling the lower steel strip of the battery module described in this embodiment:

[0055] First, select a steel strip of appropriate size, insert the steel strip into the slot 11 of the jacking rod 1, align the weld on the steel strip with the positioning protrusion 13 on the jacking, and place the battery module 7 on the jacking plate of the operating table on the base 4. The jacking plate lifts the battery module 7 to a level higher than the lower steel strip and performs battery stacking and extrusion operations. After extrusion is in place, the upper steel strip can be installed first, and then the driving part 2 on one side of the battery module 7 is controlled to drive the jacking rod 1 to drive the lower steel strip 8 to move upward, so that the lower steel strip 8 is sleeved on one side of the battery module 7, and the steel strip is embedded in the module end plate. The upper and lower steel belt limit blocks 71 on the upper and lower surfaces are fixed, and the driving part 2 is controlled to drive the lifting rod 1 on this side to move down and back to the initial position; after one side is installed in place, the driving part 2 on the other side of the battery cell module 7 is controlled to drive the lifting rod 1 to drive the lower steel belt 8 to move up, so that the lower steel belt 8 is sleeved on the other side of the battery cell module 7, and the steel belt is embedded in the limiting groove formed between the upper and lower steel belt limit blocks on the module end plate and fixed, and the driving part 2 is controlled to drive the lifting rod 1 on this side to move down and back to the initial position, so that the lower steel belt 8 is finally installed in place as a whole.

[0056] Example 2

[0057] This embodiment provides an assembly system for the lower steel strip of a battery cell module.

[0058] The assembly system for the lower steel strip of the battery cell module described in this embodiment includes the auxiliary tooling for assembling the lower steel strip of the battery cell module as described in Example 1.

[0059] The assembly system of the lower steel strip of the battery cell module described in this embodiment also includes a lifting plate arranged between the two lifting rods 1, and two extrusion plates arranged at relative intervals. The battery cell module 7 can be placed on the lifting plate and move up and down with the lifting plate; the two extrusion plates can be placed on both sides of the battery cell module 7 and extrude the battery cell module 7. Here, the lifting plate can be set on the table of the extrusion operation table, and the two extrusion plates can be driven by electrodes or hydraulics to perform extrusion operations. Here, the extrusion operation table, lifting plate, extrusion plate and other structures are all existing technologies and are therefore not shown in the accompanying drawings.

[0060] It should be noted that the auxiliary tooling for assembling the lower steel strip of the battery cell module described in this embodiment has the same structure and function as the auxiliary tooling for assembling the lower steel strip of the battery cell module described in Example 1, and this embodiment will not go into details therein.

[0061] The assembly system of the lower steel strip of the battery cell module of the utility model can use the lifting plate to lift the battery cell module so that it is higher than the lower steel strip fixed on the lifting rod, and the battery cell module can be stacked and squeezed by the extrusion plate. After the extrusion is in place, the lifting rod can be driven by the driving member to drive the lower steel strip upward, and the lower steel strip can be put on the outside of the battery cell module from bottom to top. After the steel strip is moved up to the limit groove on the end plate of the battery cell module, the steel strip can be stabilized by the tightening force of the steel strip on the protrusion on the end plate of the battery cell module. The lifting rod can be moved down again to achieve the separation of the steel strip from the slot. After the steel strip is separated from the slot, it can restore a certain elastic deformation by itself, but it can still maintain sufficient tightening force and be embedded in the limit groove of the end plate of the battery cell module to be tightly clamped on the battery cell module. The assembly system of the lower steel strip of the battery cell module of the utility model can improve the installation efficiency of the lower steel strip, reduce safety risks and the probability of damage to the battery cell module.

[0062] In summary, the use of the auxiliary tooling for assembling the lower steel strip of the battery cell module of the present invention to assemble the lower steel strip of the battery cell module instead of manual assembly can effectively avoid technical problems such as low assembly efficiency, damage to the battery cell or safety risks. Specifically, the base of the auxiliary tooling for assembling the lower steel strip of the battery cell module of the present application can be the lower groove of the existing extrusion operating table, or it can be used as the bottom plate of the auxiliary tooling. The jacking plate in the extrusion operating table can be placed on the base and the jacking plate can be raised to be located above the lower steel strip. The battery cell module placed on the jacking plate can also be located above the lower steel strip. After the battery cell modules are stacked and extruded into place, the jacking rod can be driven by the driving member to simultaneously drive the lower steel strip upward, and the lower steel strip After moving up to the limit groove on the end plate of the battery cell module, it can be tightly clamped on the protrusion on the end plate of the battery cell module. At this time, the steel belt will produce a certain elastic deformation and be in a stretched state. Moving the lifting rod downward again can make the steel belt disengage from the card slot of the lifting rod. The steel belt can maintain the height after jacking, and can restore a certain elastic deformation after the lifting rod moves down and disengages, so that the steel belt can be stuck in the limit groove on the end plate of the battery cell module, but can still maintain sufficient tension to tightly clamp the battery cell module. The auxiliary tooling of the present application can realize the function of assembling the lower steel belt by moving the lifting rod upward. Using the auxiliary tooling of the present application to assemble the lower steel belt can avoid damage to the battery cell or safety risks caused by manual operation, and achieves the technical effect of improving installation efficiency. The assembly system of the lower steel strip of the battery cell module of the utility model can use the lifting plate to lift the battery cell module so that it is higher than the lower steel strip fixed on the lifting rod, and the battery cell module can be stacked and squeezed by the extrusion plate. After the extrusion is in place, the lifting rod can be driven by the driving member to drive the lower steel strip upward, and the lower steel strip can be put on the outside of the battery cell module from bottom to top. After the steel strip is moved up to the limit groove on the end plate of the battery cell module, the steel strip can be stabilized by the tightening force of the steel strip on the protrusion on the end plate of the battery cell module. The lifting rod can be moved down again to achieve the separation of the steel strip from the slot. After the steel strip is separated from the slot, it can restore a certain elastic deformation by itself, but it can still maintain sufficient tightening force and be embedded in the limit groove of the end plate of the battery cell module to be tightly clamped on the battery cell module. The assembly system of the lower steel strip of the battery cell module of the utility model can improve the installation efficiency of the lower steel strip, reduce safety risks and the probability of damage to the battery cell module.

[0063] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An auxiliary tool for assembling the lower steel strip of a battery module, characterized in that: The invention comprises a base (4), two lifting rods (1) arranged relatively on the base (4), and a driving member (2) connected to the lifting rods (1), wherein the lifting rods (1) are provided with a slot (11) for fixing the lower steel strip (8), and the driving member (2) can drive the lifting rods (1) to rise so that the lower steel strip (8) moves upward, or drive the lifting rods (1) to descend so that the lower steel strip (8) moves downward.

2. The auxiliary tooling for assembling the lower steel strip of the battery module according to claim 1, characterized in that: It also includes a side rod (3) connected between the two lifting rods (1), a slider (12) is provided at one end of the lifting rod (1), and a first sliding groove (31) is provided in the length direction of the side rod (3) to cooperate with the slider (12), and the lifting rod (1) can slide along the first sliding groove (31) so that the distance between the two lifting rods (1) can be adjusted.

3. The auxiliary tooling for assembling the lower steel strip of the battery module according to claim 1, characterized in that: A stopper (5) for limiting the movement of the battery module (7) is provided on the base (4).

4. The auxiliary tooling for assembling the lower steel strip of the battery module according to claim 2, characterized in that: It also includes a limiting mechanism connected between the side rod (3) and the base (4), and the limiting mechanism is used to stabilize the movement of the side rod (3) and the lifting rod (1) in the vertical direction.

5. The auxiliary tooling for assembling the lower steel strip of the battery module according to claim 4, characterized in that: The limiting mechanism includes a slide rod (6), the upper end of the slide rod (6) is hinged to the side rod (3), a second slide groove (41) is provided on the base (4), and the lower end of the slide rod (6) is arranged in the second slide groove (41) and can slide along the second slide groove (41).

6. The auxiliary tooling for assembling the lower steel strip of the battery module according to claim 4, characterized in that: The limiting mechanism includes a slide rod (6), the lower end of the slide rod (6) is hinged to the base (4), a second slide groove (41) is provided on the side rod (3), and the upper end of the slide rod (6) is arranged in the second slide groove (41) and can slide along the second slide groove (41).

7. The auxiliary tooling for assembling the lower steel strip of the battery module according to claim 5 or 6, characterized in that: The slide rod (6) is provided in the second slide groove (41), and a pulley (61) is installed at one end thereof.

8. The auxiliary tooling for assembling the lower steel strip of the battery module according to any one of claims 1 to 6, characterized in that: A positioning protrusion (13) is provided on the lifting rod (1), and the positioning protrusion (13) is used to locate the position of the butt joint of the lower steel strip (8) when the lower steel strip (8) is fixed in the slot (11).

9. The auxiliary tooling for assembling the lower steel strip of the battery module according to any one of claims 1 to 6, characterized in that: The driving member (2) is a hydraulic cylinder.

10. An assembly system for the lower steel strip of a battery module, characterized in that: The auxiliary tooling for assembling the lower steel strip of the battery cell module comprises the auxiliary tooling according to any one of claims 1 to 9, and further comprises a lifting plate and two extrusion plates, wherein the lifting plate is arranged between the two lifting rods (1), the two extrusion plates are arranged opposite to each other and spaced apart, the battery cell module (7) can be placed on the lifting plate and can be moved up and down; the two extrusion plates can extrude the battery cell module (7).

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