An electrolyte injection device for energy storage battery

Abstract

The invention discloses an electrolyte injection device for an energy storage battery, and relates to the technical field of electrolyte addition. The electrolyte injection device for the energy storage battery comprises a rotary filling mechanism, wherein the rotary filling mechanism has a workbench, a rotary clamping assembly is arranged in the middle position of the workbench, and a discharge assembly and a feeding assembly are arranged on the periphery of the rotary clamping assembly. The invention can realize the effects of automatic feeding, filling, unloading, laser sealing and flattening, and the electrolyte filling process of the entire battery cell does not require manual participation, which effectively improves the automation effect of the equipment and greatly improves the electrolyte filling efficiency of the battery cell; and it is harmless to operators.

Description

Technical Field

[0001] The present invention specifically relates to the technical field of electrolyte addition, and in particular to an electrolyte injection device for an energy storage battery. Background Art

[0002] The electrolyte serves as the discharge medium of the battery, providing ion conduction for the normal operation of the positive and negative electrodes. The assembly and filling of the battery refers to the process of assembling the plates, separators, and slot covers into the battery shell, and filling the electrolyte into the battery shell to form a battery. Assembly and filling is the last step in the manufacture of lead-acid batteries. After assembly, the finished battery can realize the mutual conversion of electrical energy and chemical energy.

[0003] Chinese patent publication number CN 213340669 U provides an electrolyte filling device, which relates to the technical field of electrolyte filling. The electrolyte filling device comprises a bottom plate, a bracket is fixedly connected to the top of the bottom plate, a liquid storage tank is arranged at the bottom end of the bracket, a liquid infusion tube is arranged at the bottom end of the liquid storage tank, a solenoid valve is arranged on the outside of the liquid infusion tube, an outer frame is arranged at the top end of the bottom plate, a vertical tube is arranged at the top end of the outer frame, a clamping assembly is arranged inside the outer frame, and the clamping assembly comprises a first airbag, the first airbag is arranged inside the vertical tube, and the number of the first airbags is set to multiple.

[0004] According to the electrolyte filling operation specifications and requirements, when filling the battery cell with electrolyte, the operator needs to wear protective equipment such as corrosion-resistant gloves, goggles, and protective clothing to prevent the electrolyte from directly contacting the skin, eyes, and other parts. If manual operation is required, the equipment needs to be designed to be fully enclosed to ensure the safety of the operator;

[0005] However, the electrolyte filling device in the above patent is an open device and not an automated device, requiring human intervention; however, the open setting cannot guarantee the safety of the operator; and the device requires manual loading and unloading, resulting in low work efficiency; after the electrolyte is filled, it is easy to cause the electrolyte to spill when it is manually taken out; it is very unsafe and has extremely low work efficiency. Summary of the invention

[0006] The purpose of the present invention is to provide an electrolyte injection device for energy storage batteries, which can realize the effects of automatic loading, filling, unloading, laser sealing and flattening without manual participation, effectively improve the automation effect of the equipment, and greatly improve the electrolyte filling efficiency of the battery cell, so as to solve the technical problems raised in the above background technology.

[0007] To achieve the above object, the present invention provides the following technical solutions:

[0008] An electrolyte injection device for an energy storage battery comprises a rotary filling mechanism, wherein the rotary filling mechanism has a workbench, a rotary clamping assembly is arranged in the middle of the workbench, and a discharge assembly and a loading assembly are arranged on the periphery of the rotary clamping assembly;

[0009] The feeding assembly includes a driving rod, one end of which is movably connected to the sliding frame through a rotating shaft, and the other end is movably connected to the slider through a rotating shaft, and the slider is slidably connected in a slide groove opened on one side of the Z-shaped seat; there are two Z-shaped seats, which are symmetrically arranged and fixed to the bottom of the workbench through side vertical plates; the upper ends of the two sliders are commonly connected to a C-shaped frame; a lifting frame is fixed in the middle position of the C-shaped frame, and two ejector rods are fixed on the lifting frame; the ejector rod is slidably connected in a guide sleeve; the guide sleeve is fixed to the bottom of the workbench, and the ejector rod passes through the top of the workbench and is located below the array feeding frame, one end of the array feeding frame is connected to a vibrating loader, and a through hole is opened at the bottom of the other end so that the ejector rod can lift the battery cell.

[0010] As a further technical solution of the present invention, the rotating clamping assembly includes a rotating table connected to the output shaft of the reducer, and a plurality of battery cell clamping parts are arranged in a circular array around the rotating table. The battery cell clamping parts include a connecting seat fixed to the rotating table, and a C-shaped groove is provided at one end of the connecting seat, and two movable clamping arms are movably connected to the C-shaped groove through a rotating shaft; a clamping piece is fixed at the end of each movable clamping arm; the movable clamping arm is connected to the connecting seat through a C-shaped elastic part; the C-shaped elastic part is made of galvanized stainless steel wire with a diameter of 2 mm, so that the two movable clamping arms have an inward clamping force.

[0011] As a further technical solution of the present invention, the unloading assembly includes a rotating wheel, which is fixed with an eccentric shaft at the wheel rim; the eccentric shaft extends into the sliding frame; a guide groove frame is obliquely fixed on the outer side of the sliding frame; a driving shaft is slidably connected inside the guide groove frame; the driving shaft is connected to the deflection frame through a connecting rod, the deflection frame is movably connected to the fixed seat through a rotating shaft, and the fixed seat is fixed to the bottom of the workbench; the other end of the deflection frame is connected to a push rod through a rotating shaft; the upper end of the push rod is connected to the middle position of the movable arm through a rotating shaft; the two ends of the movable arm are respectively connected to a support and an L-shaped seat through a rotating shaft; the support and the L-shaped seat are also movably connected through a double fisheye joint;

[0012] A retracting cylinder is fixed at the bottom of the L-shaped seat, and a clamp is connected to the cylinder rod end of the retracting cylinder. The width of the upper end of the clamp is smaller than the width of the lower end, which facilitates the clamp to enter between the two clamps to take out the battery core.

[0013] As a further technical solution of the present invention, the reducer is a dual-output shaft reducer, and the rotating wheel is cooperatively connected with the output shaft of the reducer;

[0014] The sliding frame is slidably connected to the two sliding rods, one end of the sliding rod is connected to the side bracket fixed under the workbench, and the other end is fixedly connected to the Z-shaped seat.

[0015] As a further technical solution of the present invention, the power input shaft of the reducer is equipped with a driven wheel, which is connected to the driving wheel installed on the servo motor through a belt; the servo motor is fixedly connected to the frame body.

[0016] As a further technical solution of the present invention, the workbench is fixed on the frame body, and a filling machine is also fixed on the workbench, and the filling machine is arranged on the opposite side of the unloading component; a battery cell sealing mechanism is also provided on the side with the unloading component, one end of the battery cell sealing mechanism is connected to the transfer component, and the other end is provided with a control cabinet.

[0017] As a further technical solution of the present invention, the transfer assembly includes a longitudinal drive module, on which a transverse drive module is mounted, wherein the other end of the transverse drive module is mounted with a walking wheel, and the walking wheel is slidably connected to a sliding guide frame; the sliding guide frame is fixed to the battery cell sealing mechanism;

[0018] The lateral driving module is equipped with a sliding cylinder, and a mechanical gripper is equipped with a mechanical gripper at the end of the cylinder rod of the sliding cylinder.

[0019] As a further technical solution of the present invention, the battery cell sealing mechanism includes an equipment bracket, on which a chain conveyor belt is installed, and a plurality of battery cell holders are arranged along the chain conveyor belt; a laser sealing machine is arranged in the middle position of the upper end of the equipment bracket, and a port flattening assembly is arranged at the end of the equipment bracket away from the transfer assembly.

[0020] As a further technical solution of the present invention, the port flattening assembly includes two cylinder seats fixed on the equipment bracket, and an opposing cylinder is fixed on the outer side of each cylinder seat; the cylinder rod of the opposing cylinder passes through the cylinder seat and is connected to a clamping plate; a support frame is commonly connected above the two cylinder seats; a flattening cylinder is fixed on the top of the support frame; and a pressure head is connected to the end of the cylinder rod of the flattening cylinder.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] 1. In the present invention, when the sliding frame slides to the right, the upper end of the driving rod drives the sliding block to slide upward along the sliding groove on the Z-shaped seat, and then the C-shaped frame pushes the ejection frame upward, so that the ejector rod is pushed upward along the guide sleeve to eject the battery cells on the array loading rack, thereby realizing automatic loading of the battery cells;

[0023] 2. In the present invention, the upper edge of the battery cell is arranged in an arc shape, and will enter between the two clamping pieces under the top force, and the C-shaped elastic member is made of galvanized stainless steel wire with a diameter of 2 mm, so that the two movable clamping arms have an inward clamping force, so that the two clamping pieces can clamp the battery cell, and the top sheet arranged on the top of the connecting seat has a limiting effect on the battery cell, and a circular hole is opened at the position where the top sheet contacts the battery cell, so as to ensure that the position of the battery cell is moderate, so as to facilitate the filling of the electrolyte;

[0024] 3. In the present invention, when taking out the battery cell, the sliding frame slides to the left along the sliding rod, and the guide slot frame arranged on the outside of the sliding frame moves along with it and presses down the driving shaft, so that the connecting rod presses down one end of the deflection frame and the other end pushes up the push rod, and the push rod pushes the lower L-shaped seat and rises upward with the cooperation of the movable arm. At this time, the clamping plate enters between the two clamping pieces, and the cylinder rod of the contraction cylinder contracts at this time, and the battery cell is taken out of the clamping piece, so that the transfer assembly can transfer the battery cell;

[0025] 4. In the present invention, when the battery cell moves to the bottom of the laser sealing machine, the laser sealing machine seals the battery cell; the laser generator is started to generate a high-energy laser beam. The laser beam is focused to the sealing area of ​​the battery cell through the optical system, so that the sealing material melts instantly and fuses with the battery cell shell;

[0026] 5. The present invention can realize the effects of automatic loading, filling, unloading, laser sealing and flattening without manual participation, effectively improves the automation effect of the equipment, greatly improves the electrolyte filling efficiency of the battery cell; and does no harm to the operator. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a three-dimensional structural schematic diagram of the present invention.

[0028] Figure 2 The present invention Figure 1 Schematic diagram of the rear structure.

[0029] Figure 3 It is a structural schematic diagram of the rotary filling mechanism in the present invention.

[0030] Figure 4 The present invention Figure 3 Schematic diagram of the bottom structure.

[0031] Figure 5 The present invention Figure 4 Schematic diagram from another perspective.

[0032] Figure 6 The present invention Figure 3 main view.

[0033] Figure 7 The present invention Figure 3 An enlarged schematic diagram of point A.

[0034] Figure 8 It is a structural schematic diagram of the battery core sealing mechanism in the present invention.

[0035] Fig. 9 The present invention Figure 4 An enlarged schematic diagram of point B.

[0036] Fig.10 The present invention Figure 5 Enlarged schematic diagram of point C.

[0037] Fig.11 The present invention Figure 6 Enlarged schematic diagram of point D.

[0038] Fig.12 It is a structural schematic diagram of the transfer assembly in the present invention.

[0039] Fig.13 The present invention Figure 8 Enlarged schematic diagram of point E.

[0040] In the figure: 1-frame, 2-filler, 3-rotating filling mechanism, 4-transfer assembly, 5-cell sealing mechanism, 6-control cabinet;

[0041] 31-servo motor, 32-driving wheel, 33-driven wheel, 34-reducer, 35-unloading assembly, 36-loading assembly, 37-rotating clamping assembly, 38-working table;

[0042] 351-rotating wheel, 352-sliding frame, 353-eccentric shaft, 354-guide groove frame, 355-driving shaft, 356-deflection frame, 357-fixed seat, 358-thrust rod, 359-support, 3510-movable arm, 3511-L-shaped seat, 3512-retraction cylinder, 3513-clamping plate, 3514-sliding rod, 3515-side bracket;

[0043] 361-driving rod, 362-sliding block, 363-Z-type seat, 364-sliding groove, 365-C-type frame, 366-elevating frame, 367-elevating rod, 368-guide sleeve, 369-array loading frame;

[0044] 371 - rotating table, 372 - top plate, 373 - connecting seat, 374 - movable clamping arm, 375 - clamping plate, 376 - C-type elastic member;

[0045] 41-longitudinal drive module, 42-lateral drive module, 43-sliding cylinder, 44-mechanical gripper, 45-sliding guide frame;

[0046] 51-equipment bracket, 52-chain transmission belt, 53-transmission motor, 54-battery holder, 55-laser sealing machine, 56-port flattening assembly;

[0047] 561-opposing cylinder, 562-cylinder seat, 563-support frame, 564-flattening cylinder, 565-pressing head. DETAILED DESCRIPTION

[0048] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0049] See also Figures 3 to 7 and Fig.10 In an embodiment of the present invention, an electrolyte injection device for an energy storage battery includes a rotary filling mechanism 3, wherein the rotary filling mechanism 3 has a workbench 38, a rotary clamping assembly 37 is provided in the middle of the workbench 38, and a discharge assembly 35 and a loading assembly 36 are provided on the periphery of the rotary clamping assembly 37;

[0050] The feeding assembly 36 includes a driving rod 361, one end of which is movably connected to the sliding frame 352 through a rotating shaft, and the other end is movably connected to the slider 362 through a rotating shaft. The slider 362 is slidably connected in a slide groove 364 opened on one side of the Z-shaped seat 363; the Z-shaped seat 363 is provided with two, and is symmetrically arranged and fixed to the bottom of the workbench 38 through a side plate; the upper ends of the two sliders 362 are commonly connected to a C-shaped frame 365; a push frame 366 is fixed in the middle position of the C-shaped frame 365, and two push rods 367 are fixed on the push frame 366; the push rod 367 is slidably connected in a guide sleeve 368; the guide sleeve 368 is fixed to the bottom of the workbench 38, and the push rod 367 penetrates to the top of the workbench 38 and is located below the array feeding frame 369, one end of the array feeding frame 369 is connected to the vibration feeding machine, and a through hole is opened at the bottom of the other end so that the push rod 367 can lift the battery cell.

[0051] Furthermore, the power input shaft of the reducer 34 is equipped with a driven wheel 33 , and the driven wheel 33 is transmission-connected to a driving wheel 32 installed on the servo motor 31 through a belt; the servo motor 31 is fixedly connected to the frame body 1 .

[0052] By adopting the above technical solution, when in use, the servo motor 31 drives the driving wheel 32 to rotate, and drives the reducer 34 to move under the cooperation of the belt and the driven wheel 33; the reducer 34 drives the rotating wheel 351 to rotate, and the eccentric shaft 353 will move the sliding frame 352 back and forth along the sliding rod 3514 when rotating to attach Fig. 9 As a reference, when the sliding frame 352 slides to the right, the upper end of the driving rod 361 drives the slider 362 to slide upward along the slide groove 364 on the Z-shaped seat 363, and the C-shaped frame 365 pushes the ejecting frame 366 upward, so that the ejector rod 367 is pushed upward along the guide sleeve 368, and the battery cells on the array loading rack 369 are ejected, thereby realizing the automatic loading of the battery cells and facilitating the subsequent filling of the electrolyte.

[0053] Please see attached Figure 7 In this embodiment, the rotating clamping assembly 37 includes a rotating table 371 connected to the output shaft of the reducer 34, and a plurality of battery cell clamping members are arranged in a circular array around the rotating table 371. The battery cell clamping members include a connecting seat 373 fixed to the rotating table 371, and a C-shaped groove is provided at one end of the connecting seat 373, and two movable clamping arms 374 are movably connected in the C-shaped groove through a rotating shaft; a clip 375 is fixed at the end of each movable clamping arm 374; the movable clamping arm 374 is connected to the connecting seat 373 through a C-shaped elastic member 376; the C-shaped elastic member 376 is made of galvanized stainless steel wire with a diameter of 2 mm, so that the two movable clamping arms 374 have an inward clamping force.

[0054] By adopting the above technical solution, when the battery cell is lifted up in the array loading rack 369, due to the arc-shaped upper edge of the battery cell, it will enter between the two clamps 375 under the pushing force, and the C-shaped elastic member 376 is made of galvanized stainless steel wire with a diameter of 2 mm, so that the two movable clamping arms 374 have an inward clamping force, so that the two clamps 375 can clamp the battery cell, and the top plate 372 arranged on the top of the connecting seat 373 has a limiting effect on the battery cell, and a circular hole is opened at the position where the top plate 372 contacts the battery cell, thereby ensuring that the battery cell is in a moderate position for the filling of the electrolyte.

[0055] Please see attached Fig. 9 and Fig.11In this embodiment, the unloading assembly 35 includes a rotating wheel 351, which is fixed with an eccentric shaft 353 at the wheel rim; the eccentric shaft 353 extends into the sliding frame 352; a guide slot frame 354 is obliquely fixed on the outer side of the sliding frame 352; a driving shaft 355 is slidably connected inside the guide slot frame 354; the driving shaft 355 is fixedly connected to the deflection frame 356 through a connecting rod, and the deflection frame 356 is movably connected to the fixed seat 357 through a rotating shaft, and the fixed seat 357 is fixed to the bottom of the workbench 38; the other end of the deflection frame 356 is connected to a push rod 358 through a rotating shaft; the upper end of the push rod 358 is connected to the middle position of the movable arm 3510 through a rotating shaft; the two ends of the movable arm 3510 are respectively connected to a support 359 and an L-shaped seat 3511 through a rotating shaft; the support 359 and the L-shaped seat 3511 are also movably connected through a double fisheye joint;

[0056] A retracting cylinder 3512 is fixed to the bottom of the L-shaped seat 3511, and a clamping plate 3513 is connected to the cylinder rod end of the retracting cylinder 3512. The width of the upper end of the clamping plate 3513 is smaller than the width of the lower end, which facilitates the clamping plate 3513 to enter between the two clips 375 to take out the battery cell.

[0057] To be more specific, the reducer 34 is a dual-output shaft reducer, and the rotating wheel 351 is cooperatively connected to the output shaft of the reducer 34; the sliding frame 352 is slidably connected to two sliding rods 3514, and one end of the sliding rod 3514 is connected to the side bracket 3515 fixed under the workbench 38, and the other end is fixedly connected to the Z-shaped seat 363.

[0058] By adopting the above technical solution, after the battery cell is filled with electrolyte, it is necessary to take out the battery cell for sealing. When taking out the battery cell, the sliding frame 352 slides to the left along the sliding rod 3514, and the guide groove frame 354 arranged on the outside of the sliding frame 352 moves along and presses down the drive shaft 355, so that the connecting rod presses down one end of the deflection frame 356 and lifts up the pushing rod 358 at the other end. The pushing rod 358 pushes the lower L-shaped seat 3511 and rises upward with the cooperation of the movable arm 3510. At this time, the clamping plate 3513 enters between the two clamps 375. At this time, the cylinder rod of the contraction cylinder 3512 contracts, and the battery cell is taken out of the clamp 375, so as to transfer the battery cell by the transfer assembly 4.

[0059] Please see attached Figure 1 to Figure 2 and Fig.12 In this embodiment, the workbench 38 is fixed on the frame 1, and a filling machine 2 is also fixed on the workbench 38, and the filling machine 2 is arranged on the opposite side of the unloading component 35; a battery cell sealing mechanism 5 is also provided on the side where the unloading component 35 is provided, and one end of the battery cell sealing mechanism 5 is connected to the transfer component 4, and the other end is provided with a control cabinet 6.

[0060] In this embodiment, the transfer assembly 4 includes a longitudinal drive module 41, on which a transverse drive module 42 is mounted, wherein the other end of the transverse drive module 42 is mounted with a travel wheel, which is slidably connected to a sliding guide frame 45; the sliding guide frame 45 is fixed to the battery cell sealing mechanism 5;

[0061] The lateral driving module 42 is equipped with a sliding cylinder 43 , and a mechanical gripper 44 is equipped with the end of the cylinder rod of the sliding cylinder 43 .

[0062] By adopting the above technical solution, when the battery cell is taken out from the clip 375, the cylinder rod of the sliding cylinder 43 extends, and the mechanical clamp 44 firmly clamps the battery cell. Then, with the cooperation of the longitudinal drive module 41, the transverse drive module 42 and the sliding guide frame 45, the battery cell is transplanted into the battery cell holder 54 for placement, so as to facilitate subsequent laser sealing.

[0063] Please see attached Figure 8 In this embodiment, the battery cell sealing mechanism 5 includes an equipment bracket 51, on which a chain conveyor belt 52 is installed, and a plurality of battery cell holders 54 are arranged along the chain conveyor belt 52; a laser sealing machine 55 is arranged in the middle position of the upper end of the equipment bracket 51, and a port flattening component 56 is arranged at the end of the equipment bracket 51 away from the transfer component 4.

[0064] By adopting the above technical solution, after the battery cell is placed in the battery cell holder 54, the transmission motor 53 drives the chain conveyor belt 52 to move with the cooperation of the sprocket and the transmission chain; when the battery cell moves to the bottom of the laser sealer 55, the laser sealer 55 seals the battery cell; the laser generator is started to generate a high-energy laser beam. The laser beam is focused on the sealing area of ​​the battery cell through the optical system, so that the sealing material melts instantly and merges with the battery cell shell; during the laser welding process, the motion control system controls the movement of the laser beam to achieve uniform welding of the entire sealing area. At the same time, the gas protection system provides inert gas to the sealing area to protect the materials inside the battery cell from oxidation and contamination.

[0065] Then, under the continued transmission of the chain conveyor belt 52 , the sealed battery cell is flattened by the port flattening assembly 56 .

[0066] Please see attached Fig.13In this embodiment, the port flattening assembly 56 includes two cylinder seats 562 fixed on the equipment bracket 51, and an opposing cylinder 561 is fixed on the outer side of each cylinder seat 562; the cylinder rod of the opposing cylinder 561 passes through the cylinder seat 562 and is connected to a clamping plate; a support frame 563 is commonly connected above the two cylinder seats 562; a flattening cylinder 564 is fixed on the top of the support frame 563; and a pressure head 565 is connected to the end of the cylinder rod of the flattening cylinder 564.

[0067] Since the chain conveyor belt 52 has a certain elasticity, when the battery cell is pressed down, the entire chain conveyor belt 52 will inevitably shake, causing the electrolyte in the unsealed battery cell to spill out.

[0068] By adopting the above technical solution, the cylinder rod of the opposite cylinder 561 is extended so that the inner clamping plate clamps the battery cell, and then the flattening cylinder 564 drives the pressure head 565 to flatten the sealed end of the battery cell.

[0069] The working principle is:

[0070] The servo motor 31 drives the driving wheel 32 to rotate. With the cooperation of the belt and the driven wheel 33, the reducer 34 drives the rotating table 371 to rotate. The vibrating loading tray continuously transports the battery cells to the array loading rack 369. The reducer 34 drives the rotating wheel 351 to rotate, and the eccentric shaft 353 drives the sliding rack 352 to move back and forth along the sliding rod 3514 when rotating to attach the battery cells to the array loading rack 369. Fig. 9 As a reference, when the sliding frame 352 slides to the right, the upper end of the driving rod 361 drives the sliding block 362 to slide upward along the sliding groove 364 on the Z-shaped seat 363, and the C-shaped frame 365 pushes the ejection frame 366 upward, so that the ejector rod 367 is pushed upward along the guide sleeve 368 to eject the battery cell on the array loading rack 369. When the battery cell is lifted up in the array loading rack 369, due to the arc-shaped upper edge of the battery cell, it will enter between the two clamping pieces 375 under the jacking force, and the C-shaped elastic member 376 is made of galvanized stainless steel wire with a diameter of 2 mm, so that the two movable clamping arms 374 have an inward clamping force, so that the two clamping pieces 375 can clamp the battery cell, and the top sheet 372 arranged on the top of the connecting seat 373 has a limiting effect on the battery cell, and a circular hole is opened at the position where the top sheet 372 contacts the battery cell, so as to ensure that the position of the battery cell is moderate for the filling of the electrolyte;

[0071] When the battery cell rotates to the bottom of the filling machine 2, the filling machine 2 is used to quantitatively fill the battery cell. The height of the electrolyte when filling is generally 10-15 mm higher than the plate. After the battery cell is filled with the electrolyte, the battery cell needs to be taken out for sealing. When the battery cell is taken out; the sliding frame 352 slides to the left along the sliding rod 3514, and the guide groove frame 354 set on the outside of the sliding frame 352 moves with it and presses down the drive shaft 355, so that the connecting rod presses down one end of the deflection frame 356 and the other end pushes up the push rod 358. The push rod 358 pushes the lower L-shaped seat 3511 and rises upward with the cooperation of the movable arm 3510. At this time, the clamping plate 3513 enters between the two clamps 375. At this time, the cylinder rod of the contraction cylinder 3512 contracts to take the battery cell out of the clamp 375.

[0072] When the battery cell is taken out from the clip 375, the cylinder rod of the sliding cylinder 43 extends, and the mechanical gripper 44 firmly grips the battery cell, and then, with the cooperation of the longitudinal drive module 41, the transverse drive module 42 and the sliding guide frame 45, the battery cell is transferred to the battery cell seat 54 for placement;

[0073] After the battery cell is placed in the battery cell holder 54, the transmission motor 53 drives the chain conveyor belt 52 with the cooperation of the sprocket and the transmission chain; when the battery cell moves to the bottom of the laser sealing machine 55, the laser sealing machine 55 seals the battery cell; the laser generator is started to generate a high-energy laser beam. The laser beam is focused onto the sealing area of ​​the battery cell through the optical system, so that the sealing material instantly melts and fuses with the battery cell shell; during the laser welding process, the motion control system controls the movement of the laser beam to achieve uniform welding of the entire sealing area. At the same time, the gas protection system provides inert gas to the sealing area to protect the materials inside the battery cell from oxidation and contamination;

[0074] Subsequently, under the continued transmission of the chain conveyor belt 52, the sealed battery cell is placed under the port flattening assembly 56, and the cylinder rod of the opposite cylinder 561 is extended so that the inner clamping plate clamps the battery cell, and then the flattening cylinder 564 drives the pressure head 565 to flatten the sealed end of the battery cell.

[0075] The present invention can realize the effects of automatic loading, filling, unloading, laser sealing and flattening without manual intervention, effectively improves the automation effect of the equipment, greatly improves the electrolyte filling efficiency of the battery cell, and is harmless to the operators.

[0076] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0077] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. An electrolyte injection device for an energy storage battery, characterized in that: The rotary filling mechanism (3) comprises a workbench (38), a rotary clamping assembly (37) is provided in the middle of the workbench (38), and a discharge assembly (35) and a loading assembly (36) are provided on the periphery of the rotary clamping assembly (37); The loading assembly (36) comprises a driving rod (361), one end of which is movably connected to the sliding frame (352) via a rotating shaft, and the other end of which is movably connected to a sliding block (362) via a rotating shaft, and the sliding block (362) is slidably connected in a sliding groove (364) provided on one side of the Z-shaped seat (363); two Z-shaped seats (363) are provided, and are symmetrically arranged and fixed to the bottom of the workbench (38) via side vertical plates; the upper ends of the two sliding blocks (362) are commonly connected to a C-shaped frame (365); the C-shaped frame ( A lifting frame (366) is fixed in the middle position of the workbench (365), and two lifting rods (367) are fixed on the lifting frame (366); the lifting rods (367) are slidably connected in the guide sleeve (368); the guide sleeve (368) is fixed to the bottom of the workbench (38), and the lifting rods (367) pass through the top of the workbench (38) and are located below the array loading rack (369); one end of the array loading rack (369) is connected to the vibration loading machine, and a through hole is provided at the bottom of the other end so that the lifting rods (367) can lift the battery cells.

2. The electrolyte injection device for energy storage battery according to claim 1, characterized in that: The rotating clamping assembly (37) comprises a rotating table (371) connected to the output shaft of the reducer (34); a plurality of battery cell clamping members are arranged in a circular array around the rotating table (371); the battery cell clamping members comprise a connecting seat (373) fixed to the rotating table (371); a C-shaped groove is provided at one end of the connecting seat (373); two movable clamping arms (374) are movably connected in the C-shaped groove via a rotating shaft; a clamping piece (375) is fixed at the end of each movable clamping arm (374); the movable clamping arm (374) is connected to the connecting seat (373) via a C-shaped elastic member (376); the C-shaped elastic member (376) is made of galvanized stainless steel wire with a diameter of 2 mm, so that the two movable clamping arms (374) have an inward clamping force.

3. The electrolyte injection device for energy storage battery according to claim 2, characterized in that: The unloading assembly (35) comprises a rotating wheel (351), an eccentric shaft (353) being fixed at the wheel rim of the rotating wheel (351); the eccentric shaft (353) extending into the sliding frame (352); a guide slot frame (354) being fixed obliquely on the outer side of the sliding frame (352); a driving shaft (355) being slidably connected inside the guiding slot frame (354); the driving shaft (355) being connected to a deflection frame (356) via a connecting rod, and the deflection frame (356) being movably connected to a fixed seat via a rotating shaft. (357), and the fixed seat (357) is fixed to the bottom of the workbench (38); the other end of the deflection frame (356) is connected to a push rod (358) through a rotating shaft; the upper end of the push rod (358) is connected to the middle position of the movable arm (3510) through a rotating shaft; the two ends of the movable arm (3510) are respectively connected to a support (359) and an L-shaped seat (3511) through a rotating shaft; the support (359) and the L-shaped seat (3511) are also movably connected through a double fisheye joint; A retracting cylinder (3512) is fixed at the bottom of the L-shaped seat (3511), and a clamping plate (3513) is connected to the cylinder rod end of the retracting cylinder (3512). The width of the upper end of the clamping plate (3513) is smaller than the width of the lower end, so that the clamping plate (3513) can enter between the two clamping pieces (375) to remove the battery cell.

4. The electrolyte injection device for energy storage battery according to claim 3, characterized in that: The reducer (34) is a dual-output shaft reducer, and the rotating wheel (351) is cooperatively connected to the output shaft of the reducer (34); The sliding frame (352) is slidably connected to the two sliding rods (3514), and one end of the sliding rod (3514) is connected to a side bracket (3515) fixed below the workbench (38), and the other end is fixedly connected to the Z-shaped seat (363).

5. The electrolyte injection device for energy storage battery according to claim 2, characterized in that: The power input shaft of the reducer (34) is equipped with a driven wheel (33), which is connected to a driving wheel (32) installed on a servo motor (31) through a belt; the servo motor (31) is fixedly connected to the frame body (1).

6. The electrolyte injection device for energy storage battery according to claim 1, characterized in that: The workbench (38) is fixed on the frame (1), and a filling machine (2) is also fixed on the workbench (38), and the filling machine (2) is arranged on the opposite side of the unloading component (35); a battery cell sealing mechanism (5) is also arranged on the side where the unloading component (35) is arranged, and one end of the battery cell sealing mechanism (5) is connected to the transfer component (4), and the other end is provided with a control cabinet (6).

7. The electrolyte injection device for energy storage battery according to claim 6, characterized in that: The transfer assembly (4) comprises a longitudinal drive module (41), on which a transverse drive module (42) is mounted, wherein a travel wheel is mounted on the other end of the transverse drive module (42), and the travel wheel is slidably connected to a sliding guide frame (45); the sliding guide frame (45) is fixed to the battery cell sealing mechanism (5); A sliding cylinder (43) is co-installed on the transverse drive module (42), and a mechanical gripper (44) is co-installed on the end of the cylinder rod of the sliding cylinder (43).

8. The electrolyte injection device for energy storage battery according to claim 6, characterized in that: The battery cell sealing mechanism (5) comprises a device support (51), on which a chain conveyor belt (52) is mounted, and a plurality of battery cell holders (54) are arranged along the chain conveyor belt (52); a laser sealing machine (55) is arranged at the middle position of the upper end of the device support (51), and a port flattening assembly (56) is arranged at the end of the device support (51) away from the transfer assembly (4).

9. The electrolyte injection device for energy storage battery according to claim 8, characterized in that: The port flattening assembly (56) comprises two cylinder seats (562) fixed on the equipment bracket (51), and an opposing cylinder (561) is fixed on the outer side of each cylinder seat (562); the cylinder rod of the opposing cylinder (561) passes through the cylinder seat (562) and is connected to a clamping plate; the two cylinder seats (562) are connected to a supporting frame (563) above; a flattening cylinder (564) is fixed on the top of the supporting frame (563); and a pressure head (565) is connected to the end of the cylinder rod of the flattening cylinder (564).

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