High-precision turntable-driven lithium battery trace liquid injection equipment

Abstract

The invention discloses a high-precision turntable-driven lithium battery trace liquid injection device, and belongs to the technical field of lithium battery liquid injection. A high-precision turntable-driven lithium battery trace liquid injection device comprises a device body, the device body comprises an operation table, a turntable arranged on the operation table and a driving mechanism arranged on the operation table, and a driving motor for driving the turntable to rotate is formed at the bottom of the turntable. A plurality of mounting grooves used for placing the cylindrical batteries are formed in the top wall of the rotating disc at equal intervals in the circumferential direction, a liquid injection mechanism located above the rotating disc is arranged at the driving mechanism, the liquid injection mechanism is used for injecting electrolyte into the cylindrical batteries, and the driving mechanism is used for continuously driving the liquid injection mechanism to be in butt joint with the cylindrical batteries in the mounting grooves. Through the rotation of the turntable and the continuous driving of the driving mechanism, the liquid injection mechanism can be continuously butted with the cylindrical batteries in the plurality of mounting grooves on the turntable to perform trace injection of electrolyte, so that the production efficiency of liquid injection of the lithium battery is improved, the dependence of manual operation is reduced, and the production cost is reduced.

Description

Technical Field

[0001] The 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 output of various power batteries supporting it is also increasing, especially lithium batteries are being used more and more. One of the important processes in the production of lithium batteries is to inject electrolyte into the lithium battery.

[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 mouth of the injection tube of the existing secondary liquid injection equipment. The liquid is easy to accumulate to 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 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 arranged at the operating table, and a driving mechanism arranged at the operating table. A driving motor for driving the turntable to rotate is formed at the bottom of the turntable, and a plurality of mounting grooves for placing cylindrical batteries are arranged at equal intervals along the circumferential direction on the top wall of the turntable. An injection mechanism located above the turntable is provided at the driving mechanism. The injection mechanism is used to inject electrolyte into the cylindrical batteries, and the driving mechanism is used to continuously drive the injection mechanism to dock with the cylindrical batteries in the plurality of mounting grooves.

[0006] Through the rotation of the turntable and the continuous driving of the driving mechanism, the injection mechanism can continuously dock with the cylindrical batteries in multiple mounting 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.

[0007] 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.

[0008] 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.

[0009] 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.

[0010] Preferably, the horizontal moving assembly includes a fixed frame and two extension frames arranged on the top wall of the base, a second cylinder is provided on the fixed frame, a movable groove is formed on 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, sliding grooves are formed on the opposite side walls of the two extension frames, and a mounting block is slidably provided between adjacent sliding grooves along the telescopic direction of the second cylinder, and the mounting block is provided at the connecting piece.

[0011] By setting up the fixed frame, extension frame, movable groove and slide groove, the stability of the entire horizontal moving assembly is enhanced, making the injection process smoother and more reliable, and reducing the injection error caused by equipment shaking or inaccurate positioning.

[0012] Preferably, the injection mechanism includes a mounting frame arranged at the telescopic end of the first cylinder and a drying assembly and a recovery cylinder arranged at the extension frame. The mounting frame is provided with an injection assembly, and the injection assembly includes an injection tube arranged at the mounting frame. An injection cavity is formed inside the injection tube, and an extension portion is formed at the bottom wall of the injection cavity. The extension portion is detachably provided with an injection piece for extending into the cylindrical battery. A fixed tube is axially provided at the top wall of the injection cavity, which is respectively connected to the drying assembly and the recovery cylinder. A first solenoid valve is provided at one end of the fixed tube connected to the drying assembly and at another end of the fixed tube connected to the recovery cylinder.

[0013] The above structure facilitates disassembly and replacement, as well as cleaning of the inside of the injection chamber. The provision of the first solenoid valve allows adjustment according to different usage requirements, thereby improving the applicability and practicality of the device.

[0014] Preferably, an infusion tube having one end connected to the injection cavity is formed on the top wall of the injection tube, and a liquid storage tank is connected at the other end of the infusion tube, and a second solenoid valve is provided on the infusion tube.

[0015] 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.

[0016] It is understandable that the flow of the electrolyte is precisely controlled by the arrangement of the second electromagnetic valve. By adjusting the opening and closing of the electromagnetic valve, the flow rate and flow velocity of the electrolyte can be precisely controlled, thereby achieving precise control of the injection process.

[0017] Preferably, the injection piece includes a liquid injection piece body in the shape of a water drop, 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 inclined downward are formed at the inner wall of the dispersion cavity, the plurality of liquid outlet channels are all provided with injection holes, a second inclined surface inclined downward from the center is formed at the bottom wall of the dispersion cavity; an inwardly recessed mounting port detachably connected to the extension portion is formed at the top wall of the liquid injection piece body, a connecting cavity is formed between the liquid inlet cavity and the mounting port, a guide portion extending upward and cooperating with the inner wall of the extension portion is formed at the connecting cavity.

[0018] A plurality of downwardly inclined liquid outlet channels are arranged on the inner wall of the dispersion chamber, 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.

[0019] 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.

[0020] 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.

[0021] It can be understood that an inwardly recessed mounting opening is provided on the top wall of the liquid injection piece body, and the mounting opening is detachably connected and matched with the extension portion, so that the liquid injection piece can be easily installed and disassembled, and is convenient for maintenance and replacement.

[0022] Preferably, a mating portion that cooperates with the collecting cap is formed at the bottom wall of the injection piece 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 circumferentially provided 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 fixing 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 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 inside of the dispersion chamber and the liquid outlet channel are dried, thereby preventing the electrolyte from remaining in the recovery pad and the dispersion chamber and the liquid outlet channel and affecting the next 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, one end of the extension tube that passes through the injection piece body is provided with a collecting cap, an inwardly recessed recess is formed at the bottom wall of the injection piece body, a limiting plate is formed at the outer wall corresponding to the extension tube and the recess, a mounting plate that seals 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 maintain a sealed state when liquid injection is not required to prevent 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 with 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 conveniently 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 corresponding to the extension tube and the dispersion chamber, 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 is understandable 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 seal 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 The figure is a schematic diagram of the driving mechanism structure of a high-precision turntable-driven lithium battery micro-injection device.

[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 The figure is a schematic diagram of the structure of the injection mechanism of a high-precision turntable-driven lithium battery micro-injection device.

[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 parts of a high-precision turntable-driven lithium battery micro-injection device.

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

[0042] Figure 8 This is a schematic diagram of the injection state 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, injection piece; 610, liquid inlet cavity; 611, dispersion cavity; 612, first inclined surface; 613, liquid outlet channel; 614, second inclined surface; 620, installation port; 630, connecting cavity; 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, collecting 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 in conjunction with the embodiments. It should be understood that the embodiments are only for explaining the present invention and are not intended to limit it. Example 1

[0045] See also Figure 1-8 The present 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 arranged at the operating table 110, and a driving mechanism 130 arranged 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 arranged at equal intervals along the circumferential direction on the top wall of the turntable 120, an injection mechanism 140 located above the turntable 120 is arranged at the driving mechanism 130, the injection mechanism 140 is used to inject electrolyte into the cylindrical battery, and the driving mechanism 130 is used to continuously drive the injection mechanism 140 to dock with the cylindrical batteries in the plurality of mounting grooves 240.

[0046] 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 grooves 240 on the turntable 120 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.

[0047] 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.

[0048] 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.

[0049] It can be understood 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 device and being suitable for injection requirements of batteries of different sizes and layouts.

[0050] 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 piece 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 arranged at the connecting piece 340.

[0051] 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.

[0052] In this embodiment, the injection mechanism 140 includes a mounting frame 410 arranged at the telescopic end of the first cylinder 230 and a drying component 430 and a recovery cylinder 440 arranged at the extension frame 350. The mounting frame 410 is provided with an injection component 420, and the injection component 420 includes an injection tube 510 arranged at the mounting frame 410. An injection cavity 520 is formed inside the injection tube 510, and an extension portion 550 is formed at the bottom wall of the injection cavity 520. The extension portion 550 is detachably provided with an injection piece 560 for extending into the cylindrical battery. A fixed tube 530 is axially provided at the top wall of the 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 tube 530 connected to the drying component 430 and one end of the fixed tube 530 connected to the recovery cylinder 440.

[0053] The above structure facilitates disassembly and replacement, as well as cleaning of the inside of the injection chamber 520. The provision of the first solenoid valve allows adjustment according to different usage requirements, thereby improving the applicability and practicality of the device.

[0054] 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.

[0055] 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.

[0056] It is understandable that the flow of the electrolyte is precisely controlled by the arrangement of the second electromagnetic valve. By adjusting the opening and closing of the electromagnetic valve, the flow rate and flow velocity of the electrolyte can be precisely controlled, thereby achieving precise control of the injection process.

[0057] In this embodiment, the injection piece 560 includes a liquid injection piece body in the shape of a water drop, 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 downward are formed at the inner wall of the dispersion cavity 611, and the plurality of liquid outlet channels 613 are all provided with injection holes, and a second inclined surface 614 inclined downward from the center is formed at the bottom wall of the dispersion cavity 611; an inwardly recessed mounting port 620 is formed at the top wall of the liquid injection piece body, and the mounting port 620 is detachably connected to and cooperates with 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.

[0058] The diameter of the liquid inlet cavity 610 is larger than that of the connecting cavity 630 .

[0059] 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 a liquid injection hole, so that the electrolyte can be evenly distributed to each liquid outlet channel 613 and injected into the battery through the liquid injection hole.

[0060] It is understandable that the downwardly inclined setting of the liquid outlet channel 613 helps the electrolyte to flow smoothly and avoids the electrolyte from accumulating in the liquid outlet channel 613 .

[0061] It can be understood 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 .

[0062] It is understandable that an inwardly recessed mounting opening 620 is provided on the top wall of the liquid injection piece body, and the mounting opening 620 is detachably connected to the extension portion 550, so that the liquid injection piece 560 can be easily installed and removed, and is convenient for maintenance and replacement.

[0063] In this embodiment, a mating portion that cooperates with the collecting cap 710 is formed at the bottom wall of the injection part body, and a recovery pad 720 is formed at the inner wall of the collecting cap 710. The recovery pad 720 is used to wrap the 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 portion 655 is formed at the bottom wall of the extension tube 651.

[0064] The recovery pad 720 is made of porous foam material.

[0065] An annular groove is formed on the inner wall of the connecting cavity 630, and a sealing ring is arranged in the annular groove.

[0066] 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.

[0067] 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 .

[0068] 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.

[0069] Specifically, by cooperating with 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 preventing the electrolyte from remaining in the recovery pad 720 and the dispersion chamber 611 and the liquid outlet channel 613 and affecting the next injection.

[0070] 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 is connected to 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 piece body and is provided with a collecting cap 710. A recess 640 that is recessed inward is formed at the bottom wall of the injection piece 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.

[0071] A sealing plug 650 is slidably provided at the connection cavity 630 to ensure that the connection cavity 630 can remain sealed when liquid injection is not required to prevent leakage of the electrolyte.

[0072] In this embodiment, 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 with the extension tube 651 .

[0073] 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 difficulty of operation and maintenance costs.

[0074] It can be understood 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.

[0075] 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 .

[0076] Through the above structure, the first through hole 652 can transport the hot air of the drying component 430 to the dispersion chamber 611, the liquid outlet channel 613, the collecting 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 collecting cap 710 and the recovery pad 720 and causing deterioration.

[0077] It is understandable 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.

[0078] It is easy to understand that those skilled in the art can combine, split, reorganize, etc. the embodiments of the present application to obtain other embodiments based on one or several embodiments provided in the present application, and these embodiments do not exceed the protection scope of the present application.

[0079] The present invention and its implementation methods are described schematically above, and the description is not restrictive. The embodiments shown in the embodiments are only part of the implementation methods of the present invention, and the actual structure is not limited thereto. Therefore, if a person skilled in the art is inspired by the embodiments and designs a structure and an implementation method similar to the technical solution without creativity without departing from the purpose of the invention, they should all fall within the protection scope of the present invention.

Claims

1. A high-precision turntable driven lithium battery micro-injection equipment, characterized in that: The device comprises a device body (100), wherein the device body (100) comprises an operating table (110), a turntable (120) disposed at the operating table (110), and a driving mechanism (130) disposed 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 disposed at equal intervals along the circumferential direction at the top wall of the turntable (120); a liquid injection mechanism (140) located above the turntable (120) is disposed 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).

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

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

4. The high-precision turntable driven lithium battery micro-liquid injection device according to claim 1, characterized in that: The liquid injection mechanism (140) comprises a mounting frame (410) disposed at the telescopic end of the first cylinder (230), and a drying assembly (430) and a recovery cylinder (440) disposed at the extension frame (350). The mounting frame (410) is provided with a liquid injection assembly (420). The liquid injection assembly (420) comprises a liquid injection pipe (510) disposed at the mounting frame (410). A liquid injection cavity (520) is formed inside the liquid injection pipe (510). The bottom of the liquid injection cavity (520) is An extension portion (550) is formed at the wall, and a liquid injection piece (560) for extending 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) and 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).

5. A high-precision turntable driven lithium battery micro-liquid injection device according to claim 4, characterized in that: A liquid infusion tube is formed on the top wall of the liquid injection tube (510) and has one end connected to the liquid injection cavity (520). 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.

6. The high-precision turntable-driven lithium battery micro-liquid injection device according to claim 4, characterized in that: The liquid injection piece (560) comprises 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) arranged to be inclined downward are formed at 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 be diffused and inclined downward from the center; a mounting port (620) is formed at the top wall of the liquid injection piece body and is recessed inwardly and is detachably connected to and matched with 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 matching with the inner wall of the extension portion (550) is formed at the connecting cavity (630).

7. A high-precision turntable driven lithium battery micro-liquid injection device according to claim 6, characterized in that: A sealing plug (650) is slidably provided at the connection cavity (630) and cooperates with the inner wall of the connection cavity (630); an extension tube (651) communicating with the connection cavity (630) is formed at the bottom wall of the sealing plug (650); 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; an inwardly recessed recess (640) is formed at the bottom wall of the main body of the liquid injection piece; 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); 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 connection cavity (630) pressed upward.

8. The high-precision turntable-driven lithium battery micro-liquid injection device according to claim 7, characterized in that: A mating portion that mates with the collection cap (710) is formed at the bottom wall of the liquid injection piece 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).

9. The high-precision turntable-driven lithium battery micro-liquid injection device according to claim 7, 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).

10. The high-precision turntable driven lithium battery micro-liquid injection device according to claim 8, characterized in that: A plurality of first through holes (652) are formed at the outer walls corresponding to 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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