A high-precision turntable-driven lithium battery micro-injection equipment

Abstract

The present invention discloses a high-precision turntable-driven lithium battery micro-injection device, which belongs to the field of lithium battery injection technology. A high-precision turntable-driven lithium battery micro-injection device includes a device body, the device body includes an operating table, a turntable provided at the operating table, and a driving mechanism provided at the operating table. A driving motor for driving the turntable to rotate is formed at the bottom of the turntable. A plurality of mounting slots for placing cylindrical batteries are provided at equal intervals along the circumferential direction on the top wall of the turntable. The driving mechanism is provided with an injection mechanism located above the turntable. The injection mechanism is used to inject electrolyte into the cylindrical batteries. The driving mechanism is used to continuously drive the injection mechanism to dock with the cylindrical batteries in the plurality of mounting slots. Through the rotation of the turntable and the continuous drive of the driving mechanism, the injection mechanism can continuously dock with the cylindrical batteries in the plurality of mounting slots on the turntable to perform micro-injection of electrolyte, thereby improving the production efficiency of lithium battery injection, reducing the reliance on manual operation, and reducing production costs.

Description

Technical Field

[0001] The present invention relates to the technical field of lithium battery injection, in particular to a high-precision turntable-driven lithium battery micro-injection device. Background Art

[0002] With the vigorous development of the new energy industry, the production of various power batteries supporting it has also increased. In particular, lithium batteries have been increasingly used. Among them, one of the most important processes in the production of lithium batteries is to fill the lithium battery with electrolyte.

[0003] Lithium batteries require secondary liquid injection during the production process. After the lithium battery is injected with liquid, a certain amount of liquid will remain at the nozzle of the injection tube of the existing secondary liquid injection equipment. The liquid is easy to accumulate and form liquid droplets that drip down and cause pollution. This makes it easy for this part of the electrolyte to be affected by the moisture in the atmosphere, which not only causes the waste of this part of the electrolyte, but also easily affects the quality of the battery after this part of the affected electrolyte flows into the battery. Summary of the Invention

[0004] The present invention provides a high-precision turntable-driven lithium battery micro-liquid injection device, which can overcome certain defects of the prior art.

[0005] According to the present invention, a high-precision turntable-driven lithium battery micro-injection device includes an equipment body, which includes an operating table, a turntable provided on the operating table, and a driving mechanism provided on the operating table. A driving motor is formed at the bottom of the turntable to drive the turntable to rotate. A plurality of mounting slots for placing cylindrical batteries are provided at equal intervals along the circumference of the top wall of the turntable. The driving mechanism is provided with an injection mechanism located above the turntable. The injection mechanism is used to inject electrolyte into the cylindrical batteries. The driving mechanism is used to continuously drive the injection mechanism to dock with the cylindrical batteries in the plurality of mounting slots.

[0006] The liquid injection mechanism includes a mounting frame provided at the telescopic end of the first cylinder and a drying assembly and a recovery drum provided at the extension frame, the mounting frame is provided with a liquid injection assembly, the liquid injection assembly includes a liquid injection pipe provided at the mounting frame, a liquid injection cavity is formed inside the liquid injection pipe, an extension portion is formed at the bottom wall of the liquid injection cavity, a liquid injection piece for inserting into the cylindrical battery is detachably provided at the extension portion, a fixed pipe is axially provided at the top wall of the liquid injection cavity, and is respectively connected to the drying assembly and the recovery drum, and a first solenoid valve is provided at one end of the fixed pipe connected to the drying assembly and the other end of the fixed pipe connected to the recovery drum;

[0007] The liquid injection piece includes a liquid injection piece body in the shape of a water droplet, a liquid inlet cavity is formed inside the liquid injection piece body, a dispersion cavity is formed at the bottom wall of the liquid inlet cavity, a first inclined surface is formed between the liquid inlet cavity and the dispersion cavity, a plurality of liquid outlet channels arranged downwardly inclined are formed on the inner wall of the dispersion cavity, the plurality of liquid outlet channels are all provided with liquid injection holes, a second inclined surface arranged downwardly and diffused from the center is formed on the bottom wall of the dispersion cavity; an inwardly concave mounting port is formed on the top wall of the liquid injection piece body, and the mounting port is detachably connected to the extension portion, a connecting cavity is formed between the liquid inlet cavity and the mounting port, and a guide portion extending upward and cooperating with the inner wall of the extension portion is formed at the connecting cavity.

[0008] Through the rotation of the turntable and the continuous drive of the driving mechanism, the injection mechanism can continuously dock with the cylindrical batteries in multiple installation slots on the turntable to inject a small amount of electrolyte, thereby improving the production efficiency of lithium battery injection, reducing dependence on manual operation, and reducing production costs.

[0009] The above structure facilitates disassembly and replacement, as well as cleaning of the interior of the liquid injection chamber. The setting of the first solenoid valve allows adjustment according to different usage requirements, thereby improving the applicability and practicality of the device.

[0010] A plurality of downwardly inclined liquid outlet channels are provided on the inner wall of the dispersion cavity, and each liquid outlet channel is provided with a liquid injection hole, so that the electrolyte can be evenly distributed to each liquid outlet channel and injected into the battery through the liquid injection hole.

[0011] It can be understood that the downwardly inclined setting of the liquid outlet channel helps the electrolyte to flow smoothly and avoids the electrolyte from accumulating in the liquid outlet channel.

[0012] It can be understood that a second inclined surface is formed on the bottom wall of the dispersion chamber, which is diffused downward from the center, thereby enhancing the flow effect of the electrolyte and preventing the electrolyte from accumulating on the bottom wall of the dispersion chamber.

[0013] It is understandable that an inwardly recessed mounting opening is provided on the top wall of the liquid injection part body, and the mounting opening is detachably connected to the extension part, so that the liquid injection part can be easily installed and disassembled, and is convenient for maintenance and replacement.

[0014] Preferably, the driving mechanism includes a base arranged on the top wall of the operating table, a horizontal moving component is provided on the top wall of the base, a first cylinder for installing the injection mechanism is provided at the moving end of the horizontal moving component, the horizontal moving component is used to drive the first cylinder to move in the horizontal direction, and the first cylinder is used to drive the injection mechanism to move in the vertical direction.

[0015] Through the coordinated work of the horizontal moving assembly and the first cylinder, the driving mechanism can accurately position the injection mechanism above each target battery to ensure the accuracy of the injection.

[0016] It can be understood that the design of the horizontal moving assembly and the first cylinder enables the injection mechanism to move freely in both horizontal and vertical directions, thereby enhancing the flexibility of the equipment and being suitable for the injection needs of batteries of different sizes and layouts.

[0017] Preferably, the horizontal moving assembly includes a fixed frame and two extension frames arranged at the top wall of the base, a second cylinder is provided at the fixed frame, a movable groove is formed at the top wall of the fixed frame, a connecting piece sliding in the movable groove is provided at the telescopic end of the second cylinder, and sliding grooves are formed at the opposite side walls of the two extension frames, and mounting blocks are slidably provided between adjacent sliding grooves along the telescopic direction of the second cylinder, and the mounting blocks are provided at the connecting piece.

[0018] The arrangement of the fixed frame, extension frame, movable groove and slide groove enhances the stability of the entire horizontal moving assembly, making the injection process smoother and more reliable, and reducing injection errors caused by equipment shaking or inaccurate positioning.

[0019] Preferably, an infusion tube is formed on the top wall of the injection tube, one end of which is connected to the injection cavity, the other end of the infusion tube is connected to a liquid storage tank, and a second solenoid valve is provided on the infusion tube.

[0020] Through the above structure, a stable supply of electrolyte is provided for the injection process, thereby ensuring the continuity and stability of the injection process.

[0021] It is understood that the second solenoid valve is provided to precisely control the flow of the electrolyte. By adjusting the opening and closing of the solenoid valve, the flow rate and flow velocity of the electrolyte can be precisely controlled, thereby achieving precise control of the injection process.

[0022] Preferably, a fitting portion for fitting with the collecting cap is formed at the bottom wall of the injection part body, a recovery pad is formed at the inner wall of the collecting cap, the recovery pad is used to wrap the injection hole, a plurality of second through holes are provided circumferentially at the bottom of the outer wall of the extension tube, and a vertebral body is formed at the bottom wall of the extension tube.

[0023] It is understandable that a collecting cap is provided at one end of the extension tube that passes through the main body of the liquid injection piece, so that excess electrolyte at the liquid injection hole can be collected after liquid injection to prevent it from dripping and causing pollution or waste.

[0024] In addition, the electrolyte collected at the recovery pad can be pumped into the extension tube through the second through hole and finally recovered into the recovery cylinder through the connecting tube and the fixed tube.

[0025] It is understandable that a spring is provided between the limiting plate and the mounting plate so that the sealing plug can always be in a sealed state with the connecting cavity when not subjected to external force, thereby ensuring the sealing of the connecting cavity and preventing leakage of the electrolyte.

[0026] Specifically, through the coordinated arrangement of the drying component and the recovery cylinder, after the liquid injection operation is completed, the first solenoid valve at the drying component is closed, and the first solenoid valve at the recovery cylinder is opened, and the adsorbed electrolyte in the recovery pad is recovered to the recovery cylinder. Then the first solenoid valve at the recovery cylinder is closed, and the first solenoid valve at the drying component is opened, and the recovery pad and the dispersion chamber and the liquid outlet channel are dried, thereby avoiding the electrolyte remaining in the recovery pad and the dispersion chamber and the liquid outlet channel and affecting the next liquid injection.

[0027] Preferably, a sealing plug that cooperates with the inner wall of the connecting cavity is slidably provided at the connecting cavity, an extension tube that communicates with the connecting cavity is formed at the bottom wall of the sealing plug, a collecting cap is provided at one end of the extension tube that passes through the injection part body, an inwardly recessed recess is formed at the bottom wall of the injection part body, a limiting plate is formed at the outer wall corresponding to the extension tube and the recess, a mounting plate for sealing the recess is detachably provided at the recess, a spring is provided between the limiting plate and the mounting plate, and the spring is used to provide an elastic force to keep the connecting cavity pressed upward.

[0028] A sealing plug is slidably provided at the connection cavity to ensure that the connection cavity can remain sealed when liquid injection is not required, thereby preventing leakage of electrolyte.

[0029] Preferably, a connecting pipe is telescopically provided at the bottom wall of the fixed pipe, and a docking groove for detachably connecting the connecting pipe is formed at the top wall of the sealing plug, and the connecting pipe is used to connect the fixed pipe and the extension pipe.

[0030] A docking groove for detachable connection of the connecting pipe is formed on the top wall of the sealing plug, so that the connecting pipe can be easily connected to the sealing plug, and is also easy to disassemble and replace, reducing the difficulty of operation and maintenance costs.

[0031] It can be understood that the connecting tube is telescopically arranged at the bottom wall of the fixed tube, so that when the sealing plug is pressurized, the connecting tube can be driven to move, providing a stroke for the movement of the sealing plug.

[0032] Preferably, a plurality of first through holes are formed at the outer walls of the extension tube and the dispersion chamber corresponding to each other, and the first through holes are used to connect the extension tube and the dispersion chamber.

[0033] Through the above structure, the first through hole can transport the hot air of the drying component to the dispersion chamber, liquid outlet channel, collection cap and recovery pad for drying, thereby preventing the electrolyte from remaining in the dispersion chamber, liquid outlet channel, collection cap and recovery pad and causing deterioration.

[0034] It can be understood that when the sealing plug is not under pressure, the first through hole is in the dispersion cavity. When the sealing plug is under pressure, the first through hole will be pressed down to the inside of the second inclined surface to form a seal for the first through hole, thereby preventing the electrolyte from entering the extension tube through the first through hole during liquid injection. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 This is a schematic diagram of the overall structure of a high-precision turntable-driven lithium battery micro-injection equipment.

[0036] Figure 2 This is a schematic diagram of the driving mechanism structure of a high-precision turntable-driven lithium battery micro-injection equipment.

[0037] Figure 3 This is a schematic diagram of the structure of the horizontal moving component of a high-precision turntable-driven lithium battery micro-injection equipment.

[0038] Figure 4 This is a schematic diagram of the injection mechanism structure of a high-precision turntable-driven lithium battery micro-injection equipment.

[0039] Figure 5 This is a schematic diagram of the cross-sectional structure of the injection mechanism of a high-precision turntable-driven lithium battery micro-injection device.

[0040] Figure 6 This is a schematic diagram of the cross-sectional structure of the injection component of a high-precision turntable-driven lithium battery micro-injection equipment.

[0041] Figure 7 This is a schematic diagram of the cross-sectional structure of the injection state of the injection component of a high-precision turntable-driven lithium battery micro-injection equipment.

[0042] Figure 8 This is a schematic diagram of the injection status structure of the injection parts of a high-precision turntable-driven lithium battery micro-injection equipment.

[0043] 100, equipment body; 110, operating table; 120, turntable; 130, driving mechanism; 140, liquid injection mechanism; 210, base; 220, horizontal moving assembly; 230, first cylinder; 240, mounting slot; 310, fixed frame; 320, second cylinder; 330, movable slot; 340, connecting piece; 350, extension frame; 360, slide; 370, mounting block; 410, mounting frame; 420, liquid injection assembly; 430, drying assembly; 440, recovery cylinder; 450, liquid storage tank; 510, liquid injection pipe; 520, liquid injection Cavity; 530, fixed tube; 540, connecting tube; 550, extension portion; 560, liquid injection piece; 610, liquid inlet chamber; 611, dispersion chamber; 612, first inclined surface; 613, liquid outlet channel; 614, second inclined surface; 620, mounting port; 630, connecting chamber; 631, guide portion; 640, recess; 650, sealing plug; 651, extension tube; 652, first through hole; 653, limit plate; 654, second through hole; 655, vertebral body; 660, mounting plate; 670, spring; 710, collection cap; 720, recovery pad. DETAILED DESCRIPTION

[0044] In order to further understand the content of the present invention, the present invention is described in detail with reference to the embodiments. It should be understood that the embodiments are merely for explanation of the present invention and are not intended to limit the present invention.

[0045] Example:

[0046] See also Figure 1-8 This embodiment provides a high-precision turntable-driven lithium battery micro-injection device, which includes a device body 100. The device body 100 includes an operating table 110, a turntable 120 provided on the operating table 110, and a driving mechanism 130 provided on the operating table 110. A driving motor for driving the turntable 120 to rotate is formed at the bottom of the turntable 120. A plurality of mounting slots 240 for placing cylindrical batteries are provided at equal intervals along the circumferential direction on the top wall of the turntable 120. The driving mechanism 130 is provided with an injection mechanism 140 located above the turntable 120. The injection mechanism 140 is used to inject electrolyte into the cylindrical batteries. The driving mechanism 130 is used to continuously drive the injection mechanism 140 to dock with the cylindrical batteries in the plurality of mounting slots 240.

[0047] The liquid injection mechanism 140 includes a mounting frame 410 provided at the telescopic end of the first cylinder 230, and a drying assembly 430 and a recovery drum 440 provided at the extension frame 350. The mounting frame 410 is provided with a liquid injection assembly 420, and the liquid injection assembly 420 includes a liquid injection pipe 510 provided at the mounting frame 410. A liquid injection cavity 520 is formed inside the liquid injection pipe 510, and an extension portion 550 is formed at the bottom wall of the liquid injection cavity 520. A liquid injection piece 560 for inserting into the cylindrical battery is detachably provided at the extension portion 550. A fixed pipe 530 is axially provided at the top wall of the liquid injection cavity 520, which is connected to the drying assembly 430 and the recovery drum 440 respectively. A first solenoid valve is provided at one end of the fixed pipe 530 connected to the drying assembly 430 and at the other end of the fixed pipe 530 connected to the recovery drum 440.

[0048] The liquid injection piece 560 includes a liquid injection piece body in the shape of a water droplet, wherein a liquid inlet cavity 610 is formed inside the liquid injection piece body, a dispersion cavity 611 is formed at the bottom wall of the liquid inlet cavity 610, a first inclined surface 612 is formed between the liquid inlet cavity 610 and the dispersion cavity 611, a plurality of liquid outlet channels 613 inclined downwardly are formed on the inner wall of the dispersion cavity 611, and the plurality of liquid outlet channels 613 are each provided with a liquid injection hole, and a second inclined surface 614 inclined downwardly from the center is formed on the bottom wall of the dispersion cavity 611; an inwardly recessed mounting port 620 is formed on the top wall of the liquid injection piece body, and the mounting port 620 is detachably connected to the extension portion 550; a connecting cavity 630 is formed between the liquid inlet cavity 610 and the mounting port 620, and a guide portion 631 extending upward and cooperating with the inner wall of the extension portion 550 is formed at the connecting cavity 630.

[0049] Through the rotation of the turntable 120 and the continuous driving of the driving mechanism 130, the injection mechanism 140 can continuously dock with the cylindrical batteries in the multiple mounting slots 240 on the turntable 120 to perform micro-injection of electrolyte, thereby improving the production efficiency of lithium battery injection, reducing dependence on manual operation, and reducing production costs.

[0050] The above structure facilitates disassembly and replacement, as well as cleaning of the interior of the liquid injection chamber 520. The setting of the first solenoid valve allows adjustment according to different usage requirements, thereby improving the applicability and practicality of the device.

[0051] The diameter of the liquid inlet cavity 610 is larger than that of the connecting cavity 630 .

[0052] A plurality of downwardly inclined liquid outlet channels 613 are provided on the inner wall of the dispersion cavity 611 , and each liquid outlet channel 613 is provided with an injection hole, so that the electrolyte can be evenly distributed to each liquid outlet channel 613 and injected into the battery through the injection hole.

[0053] It is understandable that the downwardly inclined arrangement of the liquid outlet channel 613 facilitates the smooth flow of the electrolyte and prevents the electrolyte from accumulating in the liquid outlet channel 613 .

[0054] It is understandable that a second inclined surface 614 is formed on the bottom wall of the dispersion chamber 611 and is diffused downward from the center, which not only enhances the flow effect of the electrolyte but also prevents the electrolyte from accumulating on the bottom wall of the dispersion chamber 611.

[0055] It is understandable that an inwardly recessed mounting opening 620 is provided on the top wall of the liquid injection part body, and the mounting opening 620 is detachably connected to the extension part 550 so that the liquid injection part 560 can be easily installed and removed, and is convenient for maintenance and replacement.

[0056] In this embodiment, the driving mechanism 130 includes a base 210 arranged on the top wall of the operating table 110, a horizontal moving component 220 is provided on the top wall of the base 210, and a first cylinder 230 for installing the injection mechanism 140 is provided at the moving end of the horizontal moving component 220. The horizontal moving component 220 is used to drive the first cylinder 230 to move in the horizontal direction, and the first cylinder 230 is used to drive the injection mechanism 140 to move in the vertical direction.

[0057] Through the coordinated operation of the horizontal moving assembly 220 and the first cylinder 230 , the driving mechanism 130 can accurately position the injection mechanism 140 above each target battery, thereby ensuring the accuracy of the injection.

[0058] It is understandable that the design of the horizontal moving assembly 220 and the first cylinder 230 enables the injection mechanism 140 to move freely in both horizontal and vertical directions, thereby enhancing the flexibility of the equipment and being suitable for the injection needs of batteries of different sizes and layouts.

[0059] In this embodiment, the horizontal moving assembly 220 includes a fixed frame 310 and two extension frames 350 arranged on the top wall of the base 210. The fixed frame 310 is provided with a second cylinder 320. A movable groove 330 is formed on the top wall of the fixed frame 310. A connecting member 340 that slides in the movable groove 330 is provided at the telescopic end of the second cylinder 320. Slide grooves 360 are formed on the opposite side walls of the two extension frames 350. A mounting block 370 is slidably provided between adjacent slide grooves 360 along the telescopic direction of the second cylinder 320. The mounting block 370 is provided at the connecting member 340.

[0060] By providing the fixed frame 310, the extension frame 350, the movable groove 330 and the slide groove 360, the stability of the entire horizontal moving assembly 220 is enhanced, making the injection process smoother and more reliable, and reducing the injection error caused by equipment shaking or inaccurate positioning.

[0061] In this embodiment, a liquid infusion tube is formed on the top wall of the liquid injection tube 510, one end of which is connected to the liquid injection cavity 520, and the other end of the liquid infusion tube is connected to the liquid storage tank 450. A second solenoid valve is provided on the liquid infusion tube.

[0062] Through the above structure, a stable supply of electrolyte is provided for the injection process, thereby ensuring the continuity and stability of the injection process.

[0063] It is understood that the second solenoid valve is provided to precisely control the flow of the electrolyte. By adjusting the opening and closing of the solenoid valve, the flow rate and flow velocity of the electrolyte can be precisely controlled, thereby achieving precise control of the injection process.

[0064] In this embodiment, a mating portion that cooperates with the collection cap 710 is formed at the bottom wall of the liquid injection part body, and a recovery pad 720 is formed at the inner wall of the collection cap 710. The recovery pad 720 is used to wrap the liquid injection hole. A plurality of second through holes 654 are circumferentially provided at the bottom of the outer wall of the extension tube 651, and a vertebral body 655 is formed at the bottom wall of the extension tube 651.

[0065] The recovery pad 720 is made of porous foam material.

[0066] An annular groove is formed on the inner wall of the connecting cavity 630 , and a sealing ring is provided in the annular groove.

[0067] It is understandable that a collecting cap 710 is provided at one end of the extension tube 651 that passes through the main body of the liquid injection piece, so that excess electrolyte at the liquid injection hole can be collected after liquid injection to prevent it from dripping and causing pollution or waste.

[0068] In addition, the electrolyte collected at the recovery pad 720 can be pumped into the extension tube 651 through the second through hole 654 and finally recovered into the recovery cylinder 440 through the connecting tube 540 and the fixing tube 530 .

[0069] It is understandable that a spring 670 is provided between the limiting plate 653 and the mounting plate 660 so that the sealing plug 650 can always be in a sealed state with the connecting cavity 630 when not subjected to external force, thereby ensuring the sealing of the connecting cavity 630 and preventing electrolyte leakage.

[0070] Specifically, through the coordinated arrangement of the drying component 430 and the recovery cylinder 440, after the injection operation is completed, the first solenoid valve at the drying component 430 is closed, and the first solenoid valve at the recovery cylinder 440 is opened, and the adsorbed electrolyte in the recovery pad 720 is recovered to the recovery cylinder 440. Then the first solenoid valve at the recovery cylinder 440 is closed, and the first solenoid valve at the drying component 430 is opened, and the recovery pad 720 and the dispersion chamber 611 and the liquid outlet channel 613 are dried, thereby avoiding the electrolyte remaining in the recovery pad 720 and the dispersion chamber 611 and the liquid outlet channel 613 to affect the next injection.

[0071] In this embodiment, a sealing plug 650 that cooperates with the inner wall of the connecting cavity 630 is slidably provided at the connecting cavity 630, and an extension tube 651 that communicates with the connecting cavity 630 is formed at the bottom wall of the sealing plug 650. The extension tube 651 passes through one end of the injection part body and is provided with a collecting cap 710. An inwardly recessed recess 640 is formed at the bottom wall of the injection part body, and a limiting plate 653 is formed at the outer wall corresponding to the extension tube 651 and the recess 640. A mounting plate 660 for sealing the recess 640 is detachably provided at the recess 640, and a spring 670 is provided between the limiting plate 653 and the mounting plate 660. The spring 670 is used to provide an elastic force to keep the connecting cavity 630 pressed upward.

[0072] A sealing plug 650 is slidably provided at the connecting cavity 630 to ensure that the connecting cavity 630 can remain sealed when liquid injection is not required, thereby preventing leakage of the electrolyte.

[0073] In this embodiment, a connecting tube 540 is telescopically provided at the bottom wall of the fixed tube 530 , and a docking groove for detachable connection of the connecting tube 540 is formed at the top wall of the sealing plug 650 . The connecting tube 540 is used to connect the fixed tube 530 and the extension tube 651 .

[0074] A docking groove for detachably connecting the connecting pipe 540 is formed on the top wall of the sealing plug 650, so that the connecting pipe 540 can be easily connected to the sealing plug 650, and is also easy to disassemble and replace, reducing the operating difficulty and maintenance cost.

[0075] It is understandable that the connecting tube 540 is telescopically arranged at the bottom wall of the fixed tube 530, so that when the sealing plug 650 is pressurized, the connecting tube 540 can be driven to move, providing a stroke for the movement of the sealing plug 650.

[0076] In this embodiment, a plurality of first through holes 652 are formed at the outer walls of the extension tube 651 and the dispersion chamber 611 corresponding to each other. The first through holes 652 are used to connect the extension tube 651 and the dispersion chamber 611 .

[0077] Through the above structure, the first through hole 652 can transport the hot air from the drying component 430 to the dispersion chamber 611, the liquid outlet channel 613, the collection cap 710 and the recovery pad 720 for drying, thereby preventing the electrolyte from remaining in the dispersion chamber 611, the liquid outlet channel 613, the collection cap 710 and the recovery pad 720 and causing deterioration.

[0078] It can be understood that when the sealing plug 650 is not under pressure, the first through hole 652 is in the dispersion chamber 611. When the sealing plug 650 is under pressure, the first through hole 652 will be pressed down to the inside of the second inclined surface 614 to form a seal for the first through hole 652, thereby preventing the electrolyte from entering the extension tube 651 through the first through hole 652 during liquid injection.

[0079] It is easy to understand that those skilled in the art can combine, split, reorganize, etc. the embodiments of the present application based on one or several embodiments provided in the present application to obtain other embodiments, and these embodiments do not exceed the scope of protection of the present application.

[0080] The above is a schematic description of the present invention and its embodiments, which is not restrictive. The embodiments shown in the embodiments are only part of the embodiments of the present invention, and the actual structure is not limited thereto. Therefore, if a person skilled in the art is inspired by the above and, without departing from the purpose of the present invention, designs a structure and embodiment similar to the technical solution without creatively designing, they shall fall within the scope of protection of the present invention.

Claims

1. A high-precision turntable-driven lithium battery micro-injection device, characterized in that: The device comprises a main body (100), the main body (100) comprising an operating table (110), a turntable (120) provided at the operating table (110), and a driving mechanism (130) provided at the operating table (110); a driving motor for driving the turntable (120) to rotate is formed at the bottom of the turntable (120); a plurality of mounting grooves (240) for placing cylindrical batteries are provided at equal intervals along the circumferential direction on the top wall of the turntable (120); a liquid injection mechanism (140) located above the turntable (120) is provided at the driving mechanism (130); the liquid injection mechanism (140) is used to inject electrolyte into the cylindrical batteries; and the driving mechanism (130) is used to continuously drive the liquid injection mechanism (140) to dock with the cylindrical batteries in the plurality of mounting grooves (240); The liquid injection mechanism (140) includes a mounting frame (410) provided at the telescopic end of the first cylinder (230), a drying assembly (430) and a recovery drum (440) provided at the extension frame (350), a liquid injection assembly (420) provided at the mounting frame (410), and the liquid injection assembly (420) includes a liquid injection pipe (510) provided at the mounting frame (410), a liquid injection cavity (520) formed inside the liquid injection pipe (510), and a bottom of the liquid injection cavity (520) An extension portion (550) is formed on the wall, and a liquid injection piece (560) for extending into the cylindrical battery is detachably provided on the extension portion (550). A fixed pipe (530) is axially provided on the top wall of the liquid injection cavity (520), which is respectively connected to the drying component (430) and the recovery cylinder (440). A first solenoid valve is provided at one end of the fixed pipe (530) connected to the drying component (430) and at one end of the fixed pipe (530) connected to the recovery cylinder (440). The liquid injection part (560) comprises a liquid injection part body in the shape of a water droplet, wherein a liquid inlet cavity (610) is formed inside the liquid injection part body, a dispersion cavity (611) is formed at the bottom wall of the liquid inlet cavity (610), a first inclined surface (612) is formed between the liquid inlet cavity (610) and the dispersion cavity (611), a plurality of liquid outlet channels (613) arranged downwardly inclined are formed on the inner wall of the dispersion cavity (611), each of the plurality of liquid outlet channels (613) is provided with a liquid injection hole, and a second inclined surface (614) is formed at the bottom wall of the dispersion cavity (611) and is arranged to diffuse downwardly from the center; an inwardly recessed mounting port (620) is formed on the top wall of the liquid injection part body and is detachably connected to and engaged with the extension part (550); a connecting cavity (630) is formed between the liquid inlet cavity (610) and the mounting port (620), and a guide portion (631) extending upward and engaging with the inner wall of the extension part (550) is formed at the connecting cavity (630).

2. The high-precision turntable-driven lithium battery micro-injection device according to claim 1, characterized in that: The driving mechanism (130) includes a base (210) disposed on the top wall of the operating table (110), a horizontal moving assembly (220) being disposed on the top wall of the base (210), a first cylinder (230) for mounting the liquid injection mechanism (140) being disposed at a moving end of the horizontal moving assembly (220), the horizontal moving assembly (220) being used to drive the first cylinder (230) to move in a horizontal direction, and the first cylinder (230) being used to drive the liquid injection mechanism (140) to move in a vertical direction.

3. The high-precision turntable-driven lithium battery micro-injection device according to claim 2, characterized in that: The horizontal moving assembly (220) includes a fixed frame (310) and two extension frames (350) arranged on the top wall of the base (210), a second cylinder (320) is provided on the fixed frame (310), a movable groove (330) is formed on the top wall of the fixed frame (310), a connecting member (340) sliding in the movable groove (330) is provided at the telescopic end of the second cylinder (320), and a sliding groove (360) is formed on the opposite side walls of the two extension frames (350), and a mounting block (370) is slidably provided between adjacent sliding grooves (360) along the telescopic direction of the second cylinder (320), and the mounting block (370) is provided at the connecting member (340).

4. The high-precision turntable-driven lithium battery micro-injection device according to claim 1, characterized in that: A liquid infusion tube is formed on the top wall of the liquid injection tube (510), one end of which is connected to the liquid injection cavity (520), and the other end of the liquid infusion tube is connected to a liquid storage tank (450). A second solenoid valve is provided on the liquid infusion tube.

5. The high-precision turntable-driven lithium battery micro-injection device according to claim 1, characterized in that: A sealing plug (650) that cooperates with the inner wall of the connecting cavity (630) is slidably provided at the connecting cavity (630), an extension tube (651) that is in communication with the connecting cavity (630) is formed at the bottom wall of the sealing plug (650), and a collecting cap (710) is provided at one end of the extension tube (651) that passes through the injection part body. An inwardly recessed recess (640) is formed at the bottom wall of the injection part body, and a limiting plate (653) is formed at the outer wall corresponding to the extension tube (651) and the recess (640). A mounting plate (660) for sealing the recess (640) is detachably provided at the recess (640), and a spring (670) is provided between the limiting plate (653) and the mounting plate (660). The spring (670) is used to provide an elastic force to keep the connecting cavity (630) pressed upward.

6. The high-precision turntable-driven lithium battery micro-injection device according to claim 5, characterized in that: A mating portion for mating with the collection cap (710) is formed at the bottom wall of the liquid injection part body, a recovery pad (720) is formed at the inner wall of the collection cap (710), and the recovery pad (720) is used to wrap the liquid injection hole. A plurality of second through holes (654) are provided at the bottom of the outer wall of the extension tube (651) along the circumferential direction, and a cone portion (655) is formed at the bottom wall of the extension tube (651).

7. The high-precision turntable-driven lithium battery micro-injection device according to claim 1, characterized in that: A connecting tube (540) is telescopically provided at the bottom wall of the fixed tube (530), and a docking groove for detachably connecting the connecting tube (540) is formed at the top wall of the sealing plug (650). The connecting tube (540) is used to connect the fixed tube (530) and the extension tube (651).

8. The high-precision turntable-driven lithium battery micro-injection device according to claim 6, characterized in that: A plurality of first through holes (652) are formed on the corresponding outer walls of the extension tube (651) and the dispersion chamber (611), and the first through holes (652) are used to connect the extension tube (651) and the dispersion chamber (611).

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