CN114865248B - Lithium ion battery annotates liquid machine - Google Patents
Lithium ion battery annotates liquid machine Download PDFInfo
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- CN114865248B CN114865248B CN202210585726.0A CN202210585726A CN114865248B CN 114865248 B CN114865248 B CN 114865248B CN 202210585726 A CN202210585726 A CN 202210585726A CN 114865248 B CN114865248 B CN 114865248B
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- electrolyte
- frame
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- lifting
- sealing
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/60—Arrangements or processes for filling or topping-up with liquids; Arrangements or processes for draining liquids from casings
- H01M50/609—Arrangements or processes for filling with liquid, e.g. electrolytes
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/052—Li-accumulators
- H01M10/0525—Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/058—Construction or manufacture
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Abstract
The invention relates to a lithium ion battery liquid injection machine, which comprises a bottom plate, wherein a fixing frame is arranged in the middle of the bottom plate, a storage tank for transfusion is arranged in the middle of the fixing frame, the upper end of the fixing frame is connected with a lifting tank for temporarily storing electrolyte through a connecting cylinder, a liquid injection head is arranged at the lower end of the lifting tank in a communicating manner, a suction module is arranged between the liquid injection heads in a connecting manner, an extrusion assembly matched with the liquid injection head is arranged in the lifting tank in a sliding manner up and down, the extrusion assembly is connected with the lifting module arranged on the outer wall of the lifting tank, and a clamping sleeve piece positioned right below the liquid injection head is arranged on a rotatable base. The invention can solve the problems that the sealing condition in the battery box is difficult to ensure after the battery box is clamped and contacted with the flat plate, the air inlet condition possibly occurs after the inside of the battery box is sucked, a small amount of electrolyte can only be sucked after the negative pressure is opened after the liquid injection valve is opened, and after the negative pressure is used for injecting liquid, when the liquid injection head is separated from the battery box, part of electrolyte can be adhered to the liquid injection head to be taken away, and the like.
Description
Technical Field
The invention relates to the technical field related to battery production, in particular to a lithium ion battery liquid injection machine.
Background
The new energy is the development trend of the future society, the lithium ion battery is used as a new energy with high efficiency and environmental protection, has the outstanding advantages of high working voltage, large energy density and long service life, and is currently the first-choice power supply equipment of consumer electronics, the lithium ion battery is used as one of the development directions in the future, and the production process of the lithium ion battery mainly comprises the following steps: batching, coating, rolling, cutting, slitting, welding tabs, winding, packaging, baking, injecting liquid, forming, molding, capacity-dividing detection and other steps. When the electrolyte is injected, the electrolyte needs to be injected into the battery box, the existing lithium ion battery generally adopts vacuum electrolyte injection, a liquid injection valve is opened after the battery box is sucked to vacuum, and the electrolyte automatically flows into the battery box due to the action of air pressure difference, however, in the actual operation, the electrolyte injection mode often has some defects:
regarding the sealing problem, before the battery box is sucked to vacuum, a clamp is generally used for clamping the battery box, a flat plate is used for pressing the upper end of the battery box, so that the battery box is sealed, the body position of the battery box after clamping can form a slight inclined state, at the moment, the upper end face of the battery box is not arranged on a horizontal plane, the upper end face of the battery box is in contact with the flat plate, the sealing condition in the battery box is difficult to ensure, after the inside of the battery box is sucked, the condition of air intake can occur, after a liquid injection valve is opened, only a small amount of electrolyte can be sucked through negative pressure, and therefore the condition of liquid injection unsaturation is caused;
regarding the liquid injection problem, after the negative pressure liquid injection, after the electrolyte enters the battery box, when the liquid injection head is separated from the battery box, part of the electrolyte can be adhered to the liquid injection head and taken away, so that the saturation of the electrolyte in the battery box is reduced, and the subsequent process is influenced.
Therefore, a lithium ion battery liquid injection machine is urgently needed to solve the above-mentioned drawbacks.
Disclosure of Invention
1. Technical proposal
In order to achieve the above object, the present invention provides the following technical solutions: the utility model provides a lithium ion battery annotates liquid machine, includes the bottom plate, the mid-mounting of bottom plate have the mount, the mid-mounting of mount has the holding vessel of infusion, the upper end of mount is connected with the lift jar that is used for temporarily storing electrolyte through connecting the cylinder, the holding vessel is linked together with the lift jar, annotate the liquid head is installed to the lower extreme intercommunication of lift jar, annotate and be connected between the liquid head and install the module of breathing in, with annotate liquid head matched with extrusion subassembly from top to bottom slip setting in the lift jar, extrusion subassembly is connected with the lift module of installing at the lift jar outer wall, is located the centre gripping external member under annotating the liquid head and installs on rotatable base.
The electrolyte filling head comprises a pushing frame, elastic cloth, a limiting block, a suction head, a sealing cover and a sealing layer, wherein the left end and the right end of the pushing frame, which are arranged at the lower end of the lifting tank, are symmetrically provided with communication grooves, the communication grooves are provided with elastic cloth made of anti-seepage materials, the descending extrusion assembly is in contact with the limiting block and stops descending, at the moment, electrolyte below the extrusion assembly is in an overflow state, the electrolyte overflowed by the part can be continuously stored under the elastic expansion of the elastic cloth, the limiting block is arranged at the upper end of the communication grooves, the suction head is arranged at the middle part of the lower end of the pushing frame in a communicating manner, the lower end of the suction head is sleeved with the sealing cover, the sealing layer is arranged in the sealing cover, the sealing layer wraps the upper end of the battery box, and the sealing performance between the sealing cover and the upper end of the battery box is improved.
The suction module comprises a suction pipe, a collecting pipe, a suction pump, a sealing valve, a connecting column and a rotating motor, one end of the suction pipe extends into the sealing cover, the other end of the suction pipe is communicated with the collecting pipe, the middle part of the upper end of the collecting pipe is communicated with the suction pump arranged on the side wall of the lifting tank, the suction head is connected with the suction pipe through the sealing bearing, the connecting column is connected between the adjacent sealing valves, a rotatable shaft body is formed between the connecting column and the sealing valve, and the rightmost side of the shaft body is connected with an output shaft of the rotating motor arranged on one side of the lifting tank.
Above-mentioned, holding vessel include jar body, delivery pump, flexible pipe, jar body installs on the mount, the delivery pump is installed in the intercommunication between the one end of jar body and flexible pipe, the delivery pump is installed on jar external lateral wall, the other end and the lift jar of flexible pipe are linked together, flexible pipe's setting has guaranteed smooth switch-on between liftable lift jar and the fixed mounting's delivery pump.
Above-mentioned, the sealing layer include extrusion ring, built-in spring, laminating gasbag, the sealed ring channel of having seted up of inside of sealing lid, sealed slip is provided with the extrusion ring in the ring channel, forms sealed chamber between the upper end of extrusion ring and the ring channel, connect built-in spring between extrusion ring and the ring channel, built-in spring is to the trend that extrusion ring is kept away downwards all the time, sealed chamber is connected with the laminating gasbag of annular structure through the connecting pipe, the initial laminating gasbag is in unsaturated charge state, the setting of this state does benefit to in the battery case enters into sealed lid, laminating gasbag is installed on sealed annular inside wall of lid.
Above-mentioned, the centre gripping external member include built-in section of thick bamboo, clamping assembly, elastic telescopic link and holding down plate, the inner wall of built-in section of thick bamboo evenly installs clamping assembly along its circumference, the cooperation is provided with the holding down plate between the clamping assembly, is connected with elastic telescopic link between the lower extreme of holding down plate and the built-in section of thick bamboo bottom, elastic telescopic link remains the trend of upwards pushing up to the holding down plate all the time.
Above-mentioned, the clamping assembly include grip block, extrusion piece, grip block horizontal slip sets up in built-in section of thick bamboo, and is connected with reset spring between built-in section of thick bamboo and the grip block, reset spring plays elastic reset's effect, extrusion piece is installed to the lower extreme of grip block, extrudes between the inclined plane of extrusion piece and the inclined plane of holding down plate and laminates mutually.
Above-mentioned, the sealing valve include I type cylinder, vent chamber and intercommunication chamber, the vent chamber has been seted up to the right-hand member of I type cylinder, the intercommunication chamber has been seted up to the left end of I type cylinder, and be the intersection angle between vent chamber and the intercommunication chamber and arrange, the intersection arrangement has guaranteed that the sealing valve is opened one of breathing pipe, the suction head, and another is in the state of closing, the vent chamber is located the breathing pipe, the intercommunication chamber is located the suction head.
The middle part of the connecting column is connected with the stabilizing frame through the bearing, the stabilizing frame improves the stable rotation of the connecting column, and the stabilizing frame is arranged between the adjacent pushing frames.
Above-mentioned, extrusion subassembly include slide bar, pressboard and cover establish the frame, slide up and down and set up on the lift jar, the pressboard is installed to the lower extreme of slide bar, the pressboard is located the cover and establishes the frame cover and establish on the slide bar, the lower extreme edge of cover establishes the frame and returns to set up the escape canal, push the frame after last batch battery case annotates the liquid and be in the deficiency state briefly, electrolyte in the lift jar can flow into the push-in frame from the business turn over, but the speed of flowing automatically is slower, when next batch battery case annotates the liquid, electrolyte in the push-in frame probably does not fill, at this moment, the decline of cover establishes the frame can drive the partial electrolyte in the lift jar and pushes down in the lump, thereby accelerate the replenishment to pushing in the frame electrolyte, after cover establishes frame and lift jar lower terminal surface contact, electrolyte in the push-in the frame also has finished at this moment, the electrolyte in the cover is established from the escape canal to the cover can extrude with the electrolyte in the frame.
The lifting module comprises a connecting plate, a driving cylinder, an insulating seat, a power block, a starting switch and a rotating piece, wherein the connecting plate is arranged at the ejection end of the driving cylinder arranged on the lifting tank, the lower end of the driving cylinder stretches into the insulating seat, the power block and the starting switch are sequentially arranged in the insulating seat arranged at the lower end of the lifting tank, the power block, the starting switch and the driving cylinder are electrically connected, and the rotating piece matched with the starting switch is arranged on the connecting column;
above-mentioned, the upper end horizontal part laminating of slide bar at the up end of connecting plate, and pass through threaded connection spare locking connection between the upper end horizontal part of slide bar and the connecting plate, when annotate the liquid head when not using, the unblock between corresponding slide bar and the connecting plate, extrusion subassembly can not descend along with the decline of connecting plate and synchronous by force this moment, and then can not push away the electrolyte of pushing into in the frame and penetrate.
Above-mentioned, the base include work motor, rotor plate, work motor passes through L type frame to be installed on the bottom plate, the output shaft of work motor is connected with the one end of rotor plate, the rotor plate rotates and sets up on the bottom plate.
2. Advantageous effects
1. According to the lithium ion battery liquid injection machine, for the sealing problem, the lower end positioning and the upper end alignment are adopted for the battery box, compared with the compression and lamination of the plate surface, the sealing cover of the cover body structure is more beneficial to the fit sealing of the upper end of the battery box, the sealing degree is improved, the situation that gas reenters cannot occur after air suction is avoided, for the situation that liquid injection is incomplete, liquid injection is assisted by a mechanical piston in a downward pressing mode while liquid injection is carried out under negative pressure, so that electrolyte fully enters the battery box, and when a subsequent liquid injection head is separated from the battery box, a small amount of electrolyte to be overflowed is extruded downwards through the plane reset of the elastic cloth, and is dripped onto the electrolyte in the battery box, so that the part of the electrolyte which is carried away is recovered, and the saturation of the electrolyte in the battery box is maintained;
2. according to the lithium ion battery liquid injection machine, the sealing cover and the sealing layer are matched with the clamping sleeve, so that the periphery of the lower end of the built-in battery box is synchronously clamped, meanwhile, the descending sealing cover corresponds to the upper end of the battery box in the forward direction, and the upper end of the battery box is further sealed in an annular wrapping manner through extrusion wrapping of the sealing layer, so that the sealing performance in the battery box before air suction is ensured;
3. according to the lithium ion battery liquid injection machine, a design concept of a linkage structure is adopted among a liquid injection head, an air suction module, an extrusion assembly and a lifting module, after a battery box is sucked to vacuum, a sealing valve is driven to rotate through a rotating motor, so that the air suction pipe is closed, the suction head is opened, negative pressure is used for absorbing liquid at the moment, meanwhile, a power supply passage in the lifting module drives a cylinder to be electrified, the extrusion assembly is driven to descend, mechanical auxiliary liquid injection is carried out, after preliminary liquid injection is completed, the liquid injection head is separated from the battery box up and down, at the moment, the lower end of the liquid injection head is ventilated, the elasticity of elastic cloth enables the liquid injection head to be converted into plane reset from outward expansion, so that a small amount of redundant electrolyte pushed into the frame is extruded downwards to fall into the battery box, the electrolyte carried away is further compensated, the saturation of the electrolyte in the battery box is maintained, and the liquid injection is completed at the moment.
Drawings
The invention will be further described with reference to the drawings and examples.
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic view of the back structure between the telescoping tube, lift tank, liquid filling head, suction module, compression assembly, and lift module of the present invention;
FIG. 3 is a schematic view of the structure of the sealing valve of the present invention;
FIG. 4 is a partial cross-sectional view of the clamping assembly of the present invention;
FIG. 5 is a top view of the present invention;
FIG. 6 is a cross-sectional view A-A of FIG. 5 in accordance with the present invention;
FIG. 7 is a B-B cross-sectional view of FIG. 5 in accordance with the present invention;
fig. 8 is an enlarged view of a portion at X of fig. 6 in accordance with the present invention.
Detailed Description
Embodiments of the present invention are described below with reference to the accompanying drawings. In this process, to ensure clarity and convenience of description, the widths of the lines or the sizes of the constituent elements in the drawings may be exaggerated.
In addition, the terms hereinafter are defined based on functions in the present invention, and may be different according to intention of a user, an operator, or a convention. Accordingly, these terms are defined based on the entire contents of the present specification.
As shown in fig. 1 to 8, the lithium ion battery liquid injection machine provided by the embodiment of the invention comprises a bottom plate 1, wherein a fixing frame 2 is arranged in the middle of the bottom plate 1, a storage tank 3 for transfusion is arranged in the middle of the fixing frame 2, the upper end of the fixing frame 2 is connected with a lifting tank 4 for temporarily storing electrolyte through a connecting cylinder, the storage tank 3 is communicated with the lifting tank 4, a liquid injection head 5 is arranged at the lower end of the lifting tank 4 in a communicating manner, a suction module 6 is arranged between the liquid injection heads 5 in a connecting manner, an extrusion assembly 7 matched with the liquid injection head 5 is arranged in the lifting tank 4 in a vertically sliding manner, the extrusion assembly 7 is connected with a lifting module 8 arranged on the outer wall of the lifting tank 4, and a clamping sleeve 9 positioned right below the liquid injection head 5 is arranged on a rotatable base 10.
The liquid filling head 5 comprises a push-in frame 51, elastic cloth 52, a limiting block 53, a suction head 54, a sealing cover 55 and a sealing layer 56, wherein the left end and the right end of the push-in frame 51 arranged at the lower end of the lifting tank 4 are symmetrically provided with communication grooves, the elastic cloth 52 made of anti-seepage materials is arranged on the communication grooves, the descending extrusion assembly 7 is stopped descending after being contacted with the limiting block 53, at the moment, electrolyte below the extrusion assembly 7 is in a state of overflowing, the overflowing electrolyte is continuously stored under the elastic expansion of the elastic cloth 52, the limiting block 53 is arranged at the upper end of the communication grooves, the middle part of the lower end of the push-in frame 51 is communicated with the suction head 54, the lower end of the suction head 54 is sleeved with the sealing cover 55, the sealing layer 56 is arranged in the sealing cover 55, the sealing layer 56 wraps the upper end of the battery box, and the sealing performance between the sealing cover 55 and the upper end of the battery box is improved.
The suction module 6 comprises a suction pipe 61, a collecting pipe 62, a suction pump 63, a sealing valve 64, a connecting column 65 and a rotating motor 66, one end of the suction pipe 61 extends into the sealing cover 55, the other end of the suction pipe 61 is communicated with the collecting pipe 62, the middle part of the upper end of the collecting pipe 62 is communicated with the suction pump 63 arranged on the side wall of the lifting tank 4, the suction head 54 and the suction pipe 61 are connected with the sealing valve 64 through sealing bearings, the connecting column 65 is connected between the adjacent sealing valves 64, a rotatable shaft body is formed between the connecting column 65 and the sealing valve 64, and the rightmost side of the shaft body is connected with an output shaft of the rotating motor 66 arranged on one side of the lifting tank 4.
Specifically, the clamping sleeve 9 is driven to rotate forward by the rotation of the base 10, the battery box is orderly placed in the clamping sleeve 9, then the base 10 is reset at an angle, at the moment, the battery box is right opposite to the lower part of the liquid injection head 5, the lifting tank 4 and the liquid injection head 5 are driven to integrally descend by the connecting air cylinder, the clamping sleeve 9 clamps and positions the lower half part of the battery box under the action of mutual extrusion force, the sealing layer 56 seals and wraps the upper end opening position, so that a sealing space is formed inside the battery box, the inside of the battery box is pumped to a vacuum state by the air suction of the suction pump 63, negative pressure is formed inside the battery box, the sealing valve 64 is driven to rotate by the rotating motor 66, the suction pipe 61 is closed, the suction head 54 is opened, electrolyte pushed into the frame 51 is sucked into the battery box under the action of the air pressure difference, at the same time, along with the rotation of the connecting column 65, thereby triggering the lifting module 8 to start, driving the extrusion assembly 7 to descend through the lifting module 8, mechanically descending the electrolyte pushed into the frame 51 through the descending extrusion assembly 7 while sucking air until the extrusion assembly 7 descends to contact the limiting block 53 to stop descending, stopping sucking air at the moment, stopping descending the extrusion assembly 7, and expanding the elastic cloth 52 outwards (at the moment, as the electrolyte in the battery box is fully filled, and the electrolyte in the space part of the pushing frame 51 below the extrusion assembly 7 is also in an overflow state, the electrolyte in the overflow part can outwards expand the elastic cloth 52), then driving the lifting tank 4 and the liquid injection head 5 to integrally lift through the connecting cylinder, at the moment, the lifting sealing cover 55 can carry away a small amount of electrolyte when being separated from the upper layer of the electrolyte, thereby leading to the electrolyte in the battery box to be not fully filled, and when the plane of the elastic cloth 52 is restored, the overflowed electrolyte in the space part of the pushing frame 51 below the extrusion assembly 7 is extruded downwards, so that the electrolyte is injected into the battery box, the electrolyte in the battery box is refilled, the electrolyte is fully injected into the battery box through negative pressure air suction and mechanical pressing after the electrolyte injection, and the situation that a small amount of electrolyte is taken away due to the separation of the follow-up sealing cover 55 is avoided, and the overflowed electrolyte is transferred and conveyed into the battery box through the plane restoration of the elastic cloth 52, so that the battery box is refilled, and the electrolyte injection efficiency is improved.
In another embodiment of the present invention, further, the storage tank 3 includes a tank body 31, a delivery pump 32, and a telescopic tube 33, where the tank body 31 is mounted on the fixing frame 2, the delivery pump 32 is mounted between the tank body 31 and one end of the telescopic tube 33, the delivery pump 32 is mounted on the outer sidewall of the tank body 31, the other end of the telescopic tube 33 is communicated with the lifting tank 4, and the telescopic tube 33 ensures smooth connection between the lifting tank 4 capable of lifting and the fixedly mounted delivery pump 32.
Specifically, the electrolyte in the tank body 31 is intermittently fed into the elevation tank 4 by the feed pump 32, thereby compensating for the consumption of the electrolyte in the elevation tank 4.
Further, the sealing layer 56 includes a squeezing ring 561, an internal spring 562, a laminating air bag 563, an annular groove is formed in the sealing cover 55, the squeezing ring 561 is arranged in the annular groove in a sealing sliding manner, a sealing cavity is formed between the upper end of the squeezing ring 561 and the annular groove, the internal spring 562 is connected between the squeezing ring 561 and the annular groove, the internal spring 562 keeps a trend of pushing the squeezing ring 561 downwards all the time, the sealing cavity is connected with the laminating air bag 563 with an annular structure through a connecting pipe, the initial laminating air bag 563 is in an unsaturated charge state, the battery box is arranged in the sealing cover 55 in a beneficial mode, and the laminating air bag 563 is arranged on the annular inner side wall of the sealing cover 55.
Further, the clamping sleeve 9 comprises a built-in barrel 91, clamping assemblies 92, elastic telescopic rods 93 and a lower pressing plate 94, wherein the clamping assemblies 92 are uniformly arranged on the inner wall of the built-in barrel 91 along the circumferential direction of the inner wall of the built-in barrel, the lower pressing plate 94 is arranged between the clamping assemblies 92 in a matched mode, the elastic telescopic rods 93 are connected between the lower end of the lower pressing plate 94 and the bottom of the built-in barrel 91, and the trend that the elastic telescopic rods 93 push the lower pressing plate 94 upwards all the time is kept.
Further, the clamping assembly 92 comprises a clamping plate 921 and an extrusion block 922, wherein the clamping plate 921 is horizontally arranged in the built-in barrel 91 in a sliding mode, a reset spring is connected between the built-in barrel 91 and the clamping plate 921 and plays a role in elastic reset, the extrusion block 922 is arranged at the lower end of the clamping plate 921, and the inclined surface of the extrusion block 922 is in extrusion fit with the inclined surface of the lower pressure plate 94.
Specifically, when the battery case is placed in the inner container 91 (at this time, the battery case is not contacted with the peripheral clamping plate 921), the lifting tank 4, the liquid injection head 5 and the sealing cover 55 are driven to integrally descend through the connecting cylinder, the extrusion ring 561 is driven to gradually retract into the annular groove after being contacted with the upper end of the battery case in the descending process, so that gas in the sealing cavity is extruded into the attaching air bag 563 through the connecting pipe, the attaching air bag 563 after overflowing wraps the upper end of the battery case in a clinging manner, meanwhile, the lower pressing plate 94 is driven to descend after being contacted with the lower end of the battery case, and the descending lower pressing plate 94 extrudes the extrusion block 922 to enable the clamping plate 921 to integrally draw close to the center of the shaft of the inner container 91, so as to contact with the side wall of the battery case and clamp and locate the battery case.
Further, the sealing valve 64 includes an I-cylinder 641, a ventilation chamber 642 and a communication chamber 643, the right end of the I-cylinder 641 is provided with the ventilation chamber 642, the left end of the I-cylinder 641 is provided with the communication chamber 643, the ventilation chamber 642 and the communication chamber 643 are arranged at an intersecting angle, the intersecting arrangement ensures that the sealing valve 64 is opened to one of the air suction pipe 61 and the suction head 54, while the other is in a closed state, the ventilation chamber 642 is located in the air suction pipe 61, and the communication chamber 643 is located in the suction head 54.
Further, the middle part of the connecting column 65 is connected with a stabilizing frame through a bearing, the stabilizing frame improves the stable rotation of the connecting column 65, and the stabilizing frame is installed between the adjacent pushing frames 51.
Specifically, the motor 66 is rotated to drive the I-shaped cylinder 641 to rotate, at this time, the ventilation chamber 642 is arranged to intersect the air suction pipe 61, the air suction pipe 61 is closed, the communication chamber 643 is communicated with the suction head 54, and the suction head 54 is in a liquid-passing state.
Further, the extrusion assembly 7 includes a sliding rod 71, a pressing plate 72 and a sleeving frame 73, the sliding rod 71 is arranged on the lifting tank 4 in a vertically sliding manner, the pressing plate 72 is arranged at the lower end of the sliding rod 71, the pressing plate 72 is positioned in the sleeving frame 73, the sleeving frame 73 is sleeved on the sliding rod 71, a discharge groove is formed in the edge of the lower end of the sleeving frame 73 in a back-to-back manner, after the previous batch of battery box is filled with electrolyte, the pushing frame 51 is temporarily in a defect state, the electrolyte in the lifting tank 4 can flow into the pushing frame 51, but the self-flowing speed is slower, when the next batch of battery box is filled with electrolyte, the electrolyte in the pushing frame 51 may not be fully filled, at this time, the part of electrolyte in the lifting tank 4 can be driven by the descending of the sleeving frame 73, so that the electrolyte in the pushing frame 51 is accelerated to be supplemented, and when the electrolyte in the pushing frame 51 is completely supplemented after the sleeving frame 73 is contacted with the lower end surface of the lifting tank 4, the independently descending pressing plate 72 can extrude the electrolyte in the sleeving frame 73 from the discharge groove.
Further, the lifting module 8 includes a connecting plate 81, a driving cylinder 82, an insulating seat 83, a power block 84, a start switch 85 and a rotating member 86, the connecting plate 81 is installed at the ejection end of the driving cylinder 82 installed on the lifting tank 4, the lower end of the driving cylinder 82 extends into the insulating seat 83, the power block 84 and the start switch 85 are sequentially installed inside the insulating seat 83 installed at the lower end of the lifting tank 4, the power block 84, the start switch 85 and the driving cylinder 82 are electrically connected, and the rotating member 86 matched with the start switch 85 is installed on the connecting column 65;
further, the upper horizontal portion of the sliding rod 71 is attached to the upper end surface of the connecting plate 81, and the upper horizontal portion of the sliding rod 71 is connected with the connecting plate 81 by a threaded connection in a locking manner, when the liquid injection head 5 is not in use, the corresponding sliding rod 71 is unlocked from the connecting plate 81, and at this time, the extrusion assembly 7 does not drop synchronously and forcibly along with the lowering of the connecting plate 81, and further does not push the electrolyte pushed into the frame 51.
Specifically, after the battery box is sucked to vacuum, the sealing valve 64 is driven to rotate by the rotating motor 66, the rotating piece 86 synchronously rotates, when the sealing valve 64 rotates, the rotating piece 86 touches the starting switch 85 to trigger the starting switch, at this time, a complete passage is formed among the driving cylinder 82, the insulating seat 83, the power block 84 and the starting switch 85, the driving cylinder 82 is electrified to drive the connecting plate 81 to descend, thereby driving the extrusion assembly 7 to wholly descend, in the descending process, the sheathing frame 73 and the pressing plate 72 synchronously descend for a certain distance, the pressing plate 72 independently descends (the sheathing frame 73 is contacted with the lower end of the lifting tank 4 and then stops descending), the independently descending pressing plate 72 enters the pushing frame 51, thereby mechanically pushing electrolyte in the pushing frame 51 into the battery box, until the pressing plate 72 stops descending after contacting with the limiting block 53, thereby injecting the electrolyte into the battery box, after the injection is completed, the driving cylinder 82 drives the pressing plate 72 to ascend, and then the sealing valve 64 reversely rotates to reset, thereby closing the suction head 54, and powering off the driving cylinder 82.
Further, the base 10 includes a working motor 101 and a rotating plate 102, the working motor 101 is installed on the base plate 1 through an L-shaped frame, an output shaft of the working motor 101 is connected with one end of the rotating plate 102, and the rotating plate 102 is rotatably disposed on the base plate 1.
Specifically, the rotating plate 102 is driven to rotate by the working motor 101, so that the battery box is placed.
The total working time is as follows:
and (3) placing a battery box: the rotating plate 102 is driven to rotate forwards by the working motor 101, the battery box is put into the clamping sleeve 9, and then the rotating plate 102 is rotated and reset;
clamping and sealing: the lifting tank 4 and the liquid injection head 5 are driven to integrally descend through the connecting air cylinder, the clamping sleeve 9 clamps and positions the lower half part of the battery box under the action of mutual extrusion force, and the sealing layer 56 seals and wraps the opening position of the upper end;
vacuum treatment: the interior of the battery box is pumped to a vacuum state by the air suction of the suction pump 63, so that negative pressure is formed in the battery box;
preliminary liquid injection: the sealing valve 64 is driven to rotate by the rotating motor 66, so that the air suction pipe 61 is closed, the suction head 54 is opened, electrolyte pushed into the frame 51 is sucked into the battery box under the action of air pressure difference, meanwhile, the starting switch 85 is started along with synchronous rotation of the connecting column 65 and the rotating piece 86, the driving cylinder 82 is powered on to drive the extrusion assembly 7 to descend, the electrolyte pushed into the frame 51 is mechanically descended by the descending extrusion assembly 7 while the negative pressure air suction is carried out until the extrusion assembly 7 descends to contact with the limiting block 53 to stop descending, at the moment, the air suction is stopped, and the liquid injection is primarily completed;
completely injecting liquid: then the lifting tank 4 and the liquid injection head 5 are driven to integrally lift by the connecting air cylinder, after the sealing cover 55 is separated at the upper end of the battery box, the redundant electrolyte pushed into the lower half part of the frame 51 is extruded downwards under the restoration of the plane of the elastic cloth 52, so that the electrolyte in the battery box is injected into the battery box, and the battery box is refilled, and the liquid injection is completed;
and (5) taking out: and taking out the battery box to seal, and transporting the battery box to the next working procedure.
While certain exemplary embodiments of the present invention have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that modifications may be made to the described embodiments in various different ways without departing from the spirit and scope of the invention. Accordingly, the drawings and description are to be regarded as illustrative in nature and not as restrictive of the scope of the invention, which is defined by the appended claims.
Claims (10)
1. The utility model provides a lithium ion battery annotates liquid machine, includes bottom plate (1), its characterized in that: the middle part of the bottom plate (1) is provided with a fixing frame (2), the middle part of the fixing frame (2) is provided with a storage tank (3) for transfusion, the upper end of the fixing frame (2) is connected with a lifting tank (4) for temporarily storing electrolyte through a connecting cylinder, the storage tank (3) is communicated with the lifting tank (4), the lower end of the lifting tank (4) is communicated with a liquid injection head (5), a suction module (6) is connected between the liquid injection heads (5), an extrusion assembly (7) matched with the liquid injection head (5) is arranged in the lifting tank (4) in a vertical sliding manner, the extrusion assembly (7) is connected with a lifting module (8) arranged on the outer wall of the lifting tank (4), and a clamping sleeve (9) positioned right below the liquid injection head (5) is arranged on a rotatable base (10);
the liquid injection head (5) comprises a push-in frame (51), elastic cloth (52), limiting blocks (53), a suction head (54), a sealing cover (55) and a sealing layer (56), wherein communication grooves are symmetrically formed in the left end and the right end of the push-in frame (51) which are arranged at the lower end of the lifting tank (4), the elastic cloth (52) made of seepage-proof materials is arranged on the communication grooves, the limiting blocks (53) are arranged at the upper ends of the communication grooves, the middle part of the lower end of the push-in frame (51) is communicated with the suction head (54), the lower end of the suction head (54) is sleeved with the sealing cover (55), and the sealing layer (56) is arranged in the sealing cover (55);
the suction module (6) comprises a suction pipe (61), a collecting pipe (62), a suction pump (63), a sealing valve (64), a connecting column (65) and a rotating motor (66), one end of the suction pipe (61) extends into the sealing cover (55), the other end of the suction pipe (61) is communicated with the collecting pipe (62), the middle part of the upper end of the collecting pipe (62) is communicated with the suction pump (63) arranged on the side wall of the lifting tank (4), the suction head (54) is connected with the sealing valve (64) through a sealing bearing, the connecting column (65) is connected between the adjacent sealing valves (64), a rotatable shaft body is formed between the connecting column (65) and the sealing valve (64), and the rightmost side of the shaft body is connected with an output shaft of the rotating motor (66) arranged on one side of the lifting tank (4);
the clamping sleeve member (9) is driven to rotate forwards through the rotation of the base (10), the battery box is orderly placed in the clamping sleeve member (9), then the base (10) is reset at an angle, the battery box is right opposite to the lower part of the liquid injection head (5), the connecting cylinder drives the lifting tank (4) and the liquid injection head (5) to wholly descend, the clamping sleeve member (9) clamps and positions the lower half part of the battery box, the sealing layer (56) seals and wraps the opening position of the upper end, the air suction pump (63) pumps the interior of the battery box to a vacuum state, the rotating motor (66) drives the sealing valve (64) to rotate, the air suction pipe (61) is closed, the air suction head (54) is opened, electrolyte pushed into the frame (51) is sucked into the battery box under the action of air pressure difference, the rotation of the connecting column (65) triggers the lifting module (8) to start, the lifting module (8) drives the extrusion assembly (7) to descend, the electrolyte pushed into the frame (51) is mechanically descended through the descending extrusion assembly (7) until the extrusion assembly (7) descends to contact with the limiting block (53) to stop descending, the electrolyte pushed into the space part of the frame (51) below the extrusion assembly (7) is also in an overflow state, the elastic cloth (52) is outwards spread, then the lifting tank (4) and the liquid injection head (5) are driven to integrally lift through the connecting cylinder, at this time, the lifting sealing cover (55) can take a small amount of electrolyte when being separated from the upper layer of the electrolyte, and the overflowed electrolyte in the space part of the pushing frame (51) below the extrusion assembly (7) can be extruded downwards when the plane of the elastic cloth (52) is restored, so that the electrolyte is injected into the battery box, and the electrolyte in the battery box is refilled.
2. The lithium ion battery liquid injector according to claim 1, wherein: the storage tank (3) comprises a tank body (31), a conveying pump (32) and a telescopic pipe (33), wherein the tank body (31) is arranged on the fixed frame (2), the conveying pump (32) is arranged between the tank body (31) and one end of the telescopic pipe (33) in a communicating mode, the conveying pump (32) is arranged on the outer side wall of the tank body (31), and the other end of the telescopic pipe (33) is communicated with the lifting tank (4).
3. The lithium ion battery liquid injector according to claim 1, wherein: the sealing layer (56) comprises a squeezing ring (561), an internal spring (562) and an attaching air bag (563), an annular groove is formed in the sealing cover (55), the squeezing ring (561) is arranged in the annular groove in a sealing sliding mode, a sealing cavity is formed between the upper end of the squeezing ring (561) and the annular groove, the internal spring (562) is connected between the squeezing ring (561) and the annular groove, the sealing cavity is connected with the attaching air bag (563) of an annular structure through a connecting pipe, and the attaching air bag (563) is arranged on the annular inner side wall of the sealing cover (55).
4. The lithium ion battery liquid injector according to claim 1, wherein: the sealing valve (64) comprises an I-shaped cylinder (641), a ventilation cavity (642) and a communication cavity (643), wherein the ventilation cavity (642) is formed in the right end of the I-shaped cylinder (641), the communication cavity (643) is formed in the left end of the I-shaped cylinder (641), the ventilation cavity (642) and the communication cavity (643) are arranged at an intersecting angle, the ventilation cavity (642) is located in the air suction pipe (61), and the communication cavity (643) is located in the suction head (54).
5. The lithium ion battery liquid injector according to claim 1, wherein: the extrusion assembly (7) comprises a sliding rod (71), a pressing plate (72) and a sleeving frame (73), wherein the sliding rod (71) is arranged on the lifting tank (4) in a vertical sliding mode, the pressing plate (72) is arranged at the lower end of the sliding rod (71), the pressing plate (72) is located in the sleeving frame (73), the sleeving frame (73) is sleeved on the sliding rod (71), and a discharge groove is formed in the edge of the lower end of the sleeving frame (73) in a return mode.
6. The lithium ion battery liquid injector according to claim 5, wherein: the lifting module (8) comprises a connecting plate (81), a driving air cylinder (82), an insulating seat (83), a power supply block (84), a starting switch (85) and a rotating piece (86), wherein the connecting plate (81) is arranged at the ejection end of the driving air cylinder (82) arranged on the lifting tank (4), the lower end of the driving air cylinder (82) stretches into the insulating seat (83), the power supply block (84) and the starting switch (85) are sequentially arranged in the insulating seat (83) arranged at the lower end of the lifting tank (4), and the power supply block (84), the starting switch (85) and the driving air cylinder (82) are electrically connected, and the rotating piece (86) matched with the starting switch (85) is arranged on the connecting column (65);
the upper horizontal part of the sliding rod (71) is attached to the upper end face of the connecting plate (81), and the upper horizontal part of the sliding rod (71) is connected with the connecting plate (81) in a locking way through a threaded connecting piece.
7. The lithium ion battery liquid injector according to claim 1, wherein: the clamping sleeve member (9) comprises an inner cylinder (91), clamping assemblies (92), elastic telescopic rods (93) and a lower pressing plate (94), wherein the clamping assemblies (92) are uniformly arranged on the inner wall of the inner cylinder (91) along the circumferential direction of the inner wall of the inner cylinder, the lower pressing plate (94) is matched between the clamping assemblies (92), and the elastic telescopic rods (93) are connected between the lower end of the lower pressing plate (94) and the bottom of the inner cylinder (91).
8. The lithium ion battery liquid injector according to claim 7, wherein: the clamping assembly (92) comprises a clamping plate (921) and an extrusion block (922), wherein the clamping plate (921) is horizontally arranged in the built-in cylinder (91) in a sliding mode, a reset spring is connected between the built-in cylinder (91) and the clamping plate (921), the extrusion block (922) is arranged at the lower end of the clamping plate (921), and the inclined surface of the extrusion block (922) is in extrusion fit with the inclined surface of the lower pressing plate (94).
9. The lithium ion battery liquid injector according to claim 1, wherein: the base (10) comprises a working motor (101) and a rotating plate (102), wherein the working motor (101) is arranged on the bottom plate (1) through an L-shaped frame, an output shaft of the working motor (101) is connected with one end of the rotating plate (102), and the rotating plate (102) is rotatably arranged on the bottom plate (1).
10. The lithium ion battery liquid injector according to claim 1, wherein: the middle part of the connecting column (65) is connected with a stabilizing frame through a bearing, and the stabilizing frame is arranged between adjacent pushing frames (51).
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