CN114122642A - Liquid injection device - Google Patents

Liquid injection device Download PDF

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Publication number
CN114122642A
CN114122642A CN202111582609.0A CN202111582609A CN114122642A CN 114122642 A CN114122642 A CN 114122642A CN 202111582609 A CN202111582609 A CN 202111582609A CN 114122642 A CN114122642 A CN 114122642A
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CN
China
Prior art keywords
liquid injection
plate
mounting
liquid
sealing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202111582609.0A
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Chinese (zh)
Inventor
崔双
何茂水
谭文辉
刘小川
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Huizhou Chengtai Automation Technology Co Ltd
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Huizhou Chengtai Automation Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Huizhou Chengtai Automation Technology Co Ltd filed Critical Huizhou Chengtai Automation Technology Co Ltd
Priority to CN202111582609.0A priority Critical patent/CN114122642A/en
Publication of CN114122642A publication Critical patent/CN114122642A/en
Pending legal-status Critical Current

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    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/60Arrangements or processes for filling or topping-up with liquids; Arrangements or processes for draining liquids from casings
    • H01M50/609Arrangements or processes for filling with liquid, e.g. electrolytes
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/60Arrangements or processes for filling or topping-up with liquids; Arrangements or processes for draining liquids from casings
    • H01M50/609Arrangements or processes for filling with liquid, e.g. electrolytes
    • H01M50/627Filling ports
    • H01M50/636Closing or sealing filling ports, e.g. using lids
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10Energy storage using batteries

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Filling, Topping-Up Batteries (AREA)

Abstract

The invention relates to a liquid injection device, which belongs to the field of cylindrical lithium battery production equipment and comprises a rack, wherein a base is fixedly arranged on the rack, a bearing plate is arranged on the base in a lifting manner, the bearing plate is horizontally arranged, a battery containing jig is detachably arranged on the bearing plate, and a plurality of jacks are vertically formed in the upper surface of the battery containing jig; the machine frame is further provided with a mounting frame, a mounting plate is horizontally arranged on the mounting frame and is positioned above the bearing plate, a liquid injection sleeve cup is fixedly arranged on the lower surface of the mounting plate corresponding to the jack, and the mounting plate is provided with a liquid injection hole which is communicated with the corresponding liquid injection sleeve cup and can be opened and closed corresponding to the liquid injection sleeve cup; and the machine frame is also provided with a valve island, and the liquid injection sleeve cup is connected with external vacuum pumping equipment through the valve island. The invention can effectively improve the liquid injection efficiency.

Description

Liquid injection device
Technical Field
The invention relates to the field of cylindrical lithium battery production equipment, in particular to a liquid injection device.
Background
Among the multiple production processes of the cylindrical lithium ion battery, the liquid injection of the cylindrical lithium ion battery is one of the most important production processes. The shell of cylinder lithium cell is the steel casing, and its inside is packaged with electric core, and electrolyte is injected into the steel casing by the opening of steel casing, and electrolyte injection back for make the electric core in the infiltration steel casing that electrolyte can be abundant, need to stew longer time with it, can restrict production efficiency's improvement undoubtedly like this.
Disclosure of Invention
On the basis, a base is fixedly arranged on the rack, a bearing plate is arranged on the base in a lifting manner, the bearing plate is horizontally arranged, a battery containing jig is detachably arranged on the bearing plate, and a plurality of jacks are vertically formed in the upper surface of the battery containing jig; the machine frame is further provided with a mounting frame, a mounting plate is horizontally arranged on the mounting frame and is positioned above the bearing plate, a liquid injection sleeve cup is fixedly arranged on the lower surface of the mounting plate corresponding to the jack, and the mounting plate is provided with a liquid injection hole which is communicated with the corresponding liquid injection sleeve cup and can be opened and closed corresponding to the liquid injection sleeve cup; and the machine frame is also provided with a valve island, and the liquid injection sleeve cup is connected with external vacuum pumping equipment through the valve island.
According to the invention, the insertion holes on the battery containing jig are used for inserting the battery steel shells, the battery steel shells are inserted into the insertion holes, then the openings of the battery steel shells are upward and correspond to the liquid injection sleeve cups one to one, at the moment, the battery steel shells can be sleeved on the corresponding liquid injection sleeve cups through the upward movement of the bearing plate, so that the internal space of the battery steel shells is communicated with the liquid injection sleeve cups and is in sealed fit with the liquid injection sleeve cups, then, electrolyte can be injected into the battery steel shells through the liquid injection holes on the mounting plate, then, the liquid injection holes are closed, and the liquid injection sleeve cups are vacuumized by using external vacuumizing equipment, so that the space in the battery steel shells can be in a vacuum state, and therefore, the electrolyte can rapidly and fully infiltrate the battery cores in the battery steel shells, and the production efficiency can be greatly improved.
Further, the upper surface slidable of mounting panel is provided with the closing plate, the closing plate level sets up and laminates the mounting panel sets up, just the closing plate corresponds annotate the liquid hole and seted up the via hole that runs through the closing plate.
The sealing plate is moved to the through holes of the sealing plate along the upper surface of the mounting plate and is communicated with the liquid injection holes in the mounting plate in a one-to-one correspondence manner, so that the liquid injection holes are opened, and the liquid injection needles can penetrate through the liquid injection holes to perform liquid injection operation on the battery steel shell; in addition, the sealing plate is moved to the upper surface of the mounting plate, the through holes in the sealing plate and the corresponding liquid injection holes in the mounting plate are staggered one by one, so that the liquid injection holes are in a closed state, the space in the liquid injection sleeve cup and the space in the battery steel shell are closed, and the vacuum-pumping treatment can be performed on the liquid injection sleeve cup and the battery steel shell.
The through holes in the sealing plate and the liquid injection holes in the mounting plate are arranged in a one-to-one correspondence mode, so that the opening and closing of all the liquid injection holes can be realized through one-time movement of the sealing plate, and the opening and closing of the liquid injection holes can be more convenient and faster.
Further, a guide rail is arranged on the mounting frame, the guide rail is horizontally arranged, a sliding block is arranged on the guide rail in a sliding mode, a driving air cylinder is further arranged on the mounting frame, the driving air cylinder is in driving connection with the sliding block and used for driving the sliding block to move along the guide rail in a reciprocating mode, and the sealing plate is connected with the sliding block through a connecting rod.
The driving cylinder in driving connection with the sliding block moves on the guide rail through the driving sliding block, so that the sealing plate can move relative to the mounting plate, and the opening and closing states of the liquid injection hole in the mounting plate are converted.
Further, the upper surface of mounting panel corresponds annotate the liquid hole and be provided with the annular mounting groove, the annular mounting groove encircles the notes liquid hole setting that corresponds, the embedded sealing ring that is equipped with of annular mounting groove, the upper end protrusion of sealing ring in the upper surface setting of mounting panel.
Wherein, the upper end protrusion of sealing ring in the upper surface of mounting panel, consequently, the upper end of sealing ring can support to lean on the lower surface that compresses tightly at the closing plate, can increase the lower surface of closing plate and the leakproofness of the upper surface of mounting panel, thereby can be when annotating liquid hole and via hole and staggering each other, ensure to annotate the leakproofness of the cavity structure of liquid bell cup and battery box-hat formation, and then can make the space in the battery box-hat after the evacuation processing, can keep its vacuum effectively, help going on of the process that electrolyte soaks electric core.
Furthermore, annotate downthehole elastic sealing piece that still is provided with of liquid, elastic sealing piece with annotate the sealed cooperation setting of liquid hole, just seted up on the elastic sealing piece and run through the empty opening of elastic sealing, just open-ended inside wall offsets and is sealed form.
The opening in the middle of the elastic sealing block is used for allowing a liquid injection needle to penetrate during liquid injection, so that the liquid injection needle can smoothly inject electrolyte into the battery steel shell; in addition, after the liquid injection needle leaves the opening of the elastic sealing block, the liquid injection needle is closed under the elastic action of the elastic sealing block after being opened and returns to a closed state again, and at the moment, the elastic sealing block can further seal the internal space of the battery steel shell, so that the vacuum degree of the internal space of the battery steel shell can be further effectively maintained after the battery steel shell is vacuumized.
Further, the upper surface of the elastic sealing block is inclined downward toward the upper end of the opening.
The upper surface of the elastic sealing block is inclined downwards towards the upper end of the opening, namely the upper surface of the elastic sealing block is sunken towards the upper end of the opening, so that the upper surface of the elastic sealing block plays a role in guiding the liquid injection needle to ensure that the liquid injection needle can be smoothly inserted into the opening during liquid injection.
Further, the mounting rack is arranged on the rack in a liftable manner.
Wherein, go up the in-process of accepting the board and shift up and cup joint the battery steel casing and annotate liquid retainer cup, the mounting bracket moves down in step and can increase the speed that the battery steel casing cup jointed on annotating liquid retainer cup to can effectively reduce the time of cup jointing of battery steel casing, and then can improve the production efficiency of whole notes liquid process correspondingly.
Furthermore, the mounting bracket through set up in drive actuating cylinder in the frame set up in liftable in the frame, just still be provided with first slide bar on the mounting bracket, first slide bar vertical setting, just first slide bar pass through linear bearing with leg joint.
Wherein, first slide bar is used for supporting the mounting bracket for the lift process of mounting bracket can go on steadily, thereby ensures that annotate the liquid retainer cup on the mounting panel can not misplace at the in-process that the mounting bracket descends with the battery box hat, and then can ensure that the battery box hat can cup joint smoothly on annotating the liquid retainer cup.
Furthermore, the bearing plate is arranged on the base through a driving cylinder arranged on the base and can be lifted, a second sliding rod is further arranged on the base and is vertically arranged, and the bearing plate is connected with the second sliding rod through a linear bearing.
The second sliding rod is used for supporting the bearing plate, so that the lifting process of the bearing plate can be stably carried out, the battery steel shell on the bearing plate is prevented from being dislocated with the liquid injection sleeve cup in the lifting process of the bearing plate, and the battery steel shell can be smoothly sleeved on the liquid injection sleeve cup.
Further, drain mechanism including set up in support in the frame, be provided with the fixed plate on the support with liftable, but be provided with the mounting bar on the fixed plate with horizontal migration, correspond on the mounting bar annotate the vertical notes liquid needle that is provided with in liquid hole, correspond on the mounting bar annotate the liquid needle and still be provided with the joint of the notes liquid needle intercommunication that corresponds.
Wherein, the joint on the mounting bar is used for connecting notes liquid needle and external electrolyte charge pump to make electrolyte charge pump can carry electrolyte to annotate the liquid operation in the liquid needle.
Wherein, the notes liquid process of drain mechanism does: the fixed plate rises for the lower extreme of annotating the liquid needle removes the top to battery splendid attire tool, then the mounting bar drives the notes liquid needle above that and removes the top to the notes liquid hole that corresponds, then the fixed plate moves down for annotate the liquid needle and pass and annotate the liquid hole and insert and annotate liquid cover cup, at this moment, carry electrolyte to annotating the liquid needle through electrolyte, can carry out the notes liquid operation of electrolyte.
The fixing plate can move up and down through a driving air cylinder arranged on the support and is arranged on the support, and the mounting bar can be horizontally arranged on the fixing plate through the driving air cylinder arranged on the fixing plate.
The principle and effect of the present invention will be further explained by combining the above technical scheme and the accompanying drawings:
according to the invention, the insertion holes on the battery containing jig are used for inserting the battery steel shells, the battery steel shells are inserted into the insertion holes, then the openings of the battery steel shells are upward and correspond to the liquid injection sleeve cups one to one, at the moment, the battery steel shells can be sleeved on the corresponding liquid injection sleeve cups through the upward movement of the bearing plate, so that the internal space of the battery steel shells is communicated with the liquid injection sleeve cups and is in sealed fit with the liquid injection sleeve cups, then, electrolyte can be injected into the battery steel shells through the liquid injection holes on the mounting plate, then, the liquid injection holes are closed, and the liquid injection sleeve cups are vacuumized by using external vacuumizing equipment, so that the space in the battery steel shells can be in a vacuum state, and therefore, the electrolyte can rapidly and fully infiltrate the battery cores in the battery steel shells, and the production efficiency can be greatly improved.
Drawings
Fig. 1 is a first schematic structural diagram of a liquid injection device according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a liquid injection device according to an embodiment of the present invention;
FIG. 3 is a schematic view of the fitting structure of the mounting plate and the sealing plate for opening and closing the pour hole according to the embodiment of the present invention.
Description of reference numerals:
1-frame, 21-base, 211-second slide bar, 22-bearing plate, 23-battery containing jig, 231-jack, 24-mounting frame, 241-mounting plate, 2411-liquid injection hole, 2412-elastic sealing block, 2413-opening, 242-sleeve cup, 243-sealing plate, 2431-via hole, 245-first slide bar, 25-valve island, 261-guide rail, 262-slide block, 263-connecting rod, 3-driving cylinder, 41-bracket, 42-fixing plate, 43-mounting bar, 431-liquid injection needle and 432-joint.
Detailed Description
For the convenience of understanding of those skilled in the art, the present invention will be described in further detail below with reference to the accompanying drawings and examples:
as shown in fig. 1-3, a liquid injection device includes a frame 1, a base 21 is fixedly disposed on the frame 1, a receiving plate 22 is disposed on the base 21 in a liftable manner, the receiving plate 22 is horizontally disposed, a battery containing jig 23 is detachably disposed on the receiving plate 22, and a plurality of insertion holes 231 are vertically disposed on an upper surface of the battery containing jig 23; the rack 1 is further provided with an installation frame 24, the installation frame 24 is horizontally provided with an installation plate 241, the installation plate 241 is positioned above the bearing plate 22, the lower surface of the installation plate 241 is fixedly provided with a liquid injection sleeve cup 242 corresponding to the insertion hole 231, and the installation plate 241 is provided with a liquid injection hole 2411 which is corresponding to the liquid injection sleeve cup 242 and can be opened and closed and communicated with the corresponding liquid injection sleeve cup 242; the machine frame 1 is further provided with a valve island 25, and the liquid injection sleeve cup 242 is connected with external vacuum pumping equipment through the valve island 25.
In the invention, the insertion holes 231 on the battery holding jig 23 are used for inserting the battery steel shell, the opening 2413 of the battery steel shell is upward after the battery steel shell is inserted into the insertion holes 231 and corresponds to the liquid injection sleeve cups 242 one by one, at this time, the battery steel shell can be sleeved on the corresponding liquid injection sleeve cup 242 through upward movement of the bearing plate 22, so that the internal space of the battery steel shell is communicated with the liquid injection sleeve cup 242 and is in sealed fit with the liquid injection sleeve cup 242, then, the electrolyte can be injected into the battery steel shell through the liquid injection holes 2411 on the mounting plate 241, then, the liquid injection holes 2411 are closed, and the external vacuumizing equipment is used for vacuumizing the liquid injection sleeve cup 242, so that the space in the battery steel shell can be in a vacuum state, the electrolyte can rapidly and fully infiltrate the battery core in the battery steel shell, and the production efficiency can be greatly improved.
In one embodiment, a sealing plate 243 is slidably disposed on the upper surface of the mounting plate 241, the sealing plate 243 is horizontally disposed and attached to the mounting plate 241, and the sealing plate 243 is opened with a through hole 2431 penetrating through the sealing plate 243 corresponding to the liquid injection hole 2411.
In this embodiment, the sealing plate 243 is moved along the upper surface of the mounting plate 241 until the through hole 2431 of the sealing plate 243 is correspondingly communicated with the liquid injection hole 2411 on the mounting plate 241, so that the liquid injection hole 2411 is opened, and the liquid injection needle 431 can penetrate through the liquid injection hole 2411 to perform liquid injection operation on the battery steel shell; in addition, the sealing plate 243 is moved to the upper through hole 2431 of the sealing plate 243 along the upper surface of the mounting plate 241 and is staggered with the corresponding liquid injection hole 2411 of the mounting plate 241 one by one, so that the liquid injection hole 2411 can be in a closed state, at the moment, the space in the liquid injection sleeve cup 242 and the battery steel shell can be in a closed state, and the vacuum-pumping treatment can be carried out on the space.
The through holes 2431 on the sealing plate 243 and the liquid injection holes 2411 on the mounting plate 241 are arranged in a one-to-one correspondence manner, so that the opening and closing of all the liquid injection holes 2411 can be realized through one-time movement of the sealing plate 243, and the opening and closing of the liquid injection holes 2411 can be more convenient and faster.
In one embodiment, a guide rail 261 is disposed on the mounting bracket 24, the guide rail 261 is horizontally disposed, a slider 262 is slidably disposed on the guide rail 261, a driving cylinder 3 is further disposed on the mounting bracket 24, the driving cylinder 3 is drivingly connected to the slider 262 to drive the slider 262 to reciprocate along the guide rail 261, and the sealing plate 243 is connected to the slider 262 through a connecting rod 263.
In this embodiment, the driving cylinder 3, which is drivingly connected to the slider 262, moves on the guide rail 261 by driving the slider 262, so that the sealing plate 243 moves relative to the mounting plate 241, thereby switching the open and closed states of the liquid injection hole 2411 on the mounting plate 241.
In one embodiment, the upper surface of the mounting plate 241 is provided with an annular mounting groove corresponding to the liquid injection hole 2411, the annular mounting groove is arranged around the corresponding liquid injection hole 2411, a sealing ring is embedded in the annular mounting groove, and the upper end of the sealing ring protrudes out of the upper surface of the mounting plate 241.
In this embodiment, the upper end protrusion of sealing ring in the upper surface of mounting panel 241, therefore the upper end of sealing ring can lean on the lower surface that compresses tightly at closing plate 243, can increase the leakproofness of the lower surface of closing plate 243 and the upper surface of mounting panel 241, thereby can be when annotating liquid hole 2411 and via hole 2431 stagger each other, ensure to annotate the leakproofness of the cavity structure that liquid retainer cup 242 and battery box hat formed, and then can make the space in the battery box hat after the evacuation processing, can keep its vacuum effectively, help going on of the process that electrolyte soaks electric core.
In one embodiment, an elastic sealing block 2412 is further disposed in the liquid injection hole 2411, the elastic sealing block 2412 is disposed in sealing fit with the liquid injection hole 2411, an opening 2413 penetrating through the elastic sealing hole is formed in the elastic sealing block 2412, and the inner side wall of the opening 2413 abuts against each other to form a sealing state.
In this embodiment, the opening 2413 in the middle of the elastic sealing block 2412 is used for the penetration of the liquid injection needle 431 during liquid injection, so that the liquid injection needle 431 can smoothly inject the electrolyte into the steel shell of the battery; in addition, after the liquid injection needle 431 leaves the opening 2413 of the elastic sealing block 2412, the liquid injection needle is closed under the elastic action of the elastic sealing block 2412 after being opened, and then returns to the closed state again, at this time, the elastic sealing block 2412 can further seal the internal space of the battery steel shell, so that the vacuum degree of the internal space of the battery steel shell can be further effectively maintained after the battery steel shell is vacuumized.
In one embodiment, the upper surface of the elastic sealing block 2412 is inclined downward toward the upper end of the opening 2413.
In this embodiment, the upper surface of the elastic sealing block 2412 is inclined downward toward the upper end of the opening 2413, that is, the upper surface of the elastic sealing block 2412 is recessed toward the upper end of the opening 2413, so that the upper surface of the elastic sealing block 2412 guides the liquid injection needle 431 to ensure that the liquid injection needle 431 can be smoothly inserted into the opening 2413 during liquid injection.
In one embodiment, the mounting frame 24 is arranged on the rack 1 in a liftable manner.
In this embodiment, in the process of sleeving the battery steel shell to the liquid injection sleeve cup 242 by moving the upper bearing plate 22 upward, the mounting frame 24 moves downward synchronously to increase the speed of sleeving the battery steel shell to the liquid injection sleeve cup 242, so that the sleeving time of the battery steel shell can be effectively shortened, and the production efficiency of the whole liquid injection process can be correspondingly improved.
In one embodiment, the mounting frame 24 is disposed on the rack 1 through a driving cylinder 3 disposed on the rack 1, and is configured to be capable of ascending and descending, and the mounting frame 24 is further provided with a first sliding rod 245, the first sliding rod 245 is vertically disposed, and the first sliding rod 245 is connected to the bracket 41 through a linear bearing.
In this embodiment, the first sliding rod 245 is used for supporting the mounting frame 24, so that the lifting process of the mounting frame 24 can be performed smoothly, and it is ensured that the liquid injection sleeve 242 on the mounting plate 241 is not dislocated with the battery steel shell in the descending process of the mounting frame 24, and further it is ensured that the battery steel shell can be smoothly sleeved on the liquid injection sleeve 242.
In one embodiment, the receiving plate 22 is disposed on the base 21 through a driving cylinder 3 disposed on the base 21 and capable of ascending and descending, a second slide rod 211 is further disposed on the base 21, the second slide rod 211 is vertically disposed, and the receiving plate 22 is connected to the second slide rod 211 through a linear bearing.
In this embodiment, the second sliding rod 211 is used to support the receiving plate 22, so that the lifting process of the receiving plate 22 can be performed smoothly, and it is ensured that the battery steel case on the receiving plate 22 is not dislocated with the liquid injection sleeve 242 during the lifting process of the receiving plate 22, and further, it is ensured that the battery steel case can be smoothly sleeved on the liquid injection sleeve 242.
In one embodiment, the liquid guiding mechanism includes a bracket 41 disposed on the rack 1, a fixed plate 42 is disposed on the bracket 41 in a liftable manner, a mounting bar 43 is disposed on the fixed plate 42 in a horizontally movable manner, a liquid injection needle 431 is vertically disposed on the mounting bar 43 corresponding to the liquid injection hole 2411, and a connector 432 communicated with the corresponding liquid injection needle 431 is further disposed on the mounting bar 43 corresponding to the liquid injection needle 431.
In this embodiment, the connector 432 on the mounting bar 43 is used to connect the liquid injection needle 431 and an external electrolyte injection pump, so that the electrolyte injection pump can deliver electrolyte to the liquid injection needle 431 for liquid injection operation.
Wherein, the notes liquid process of drain mechanism does: the fixing plate 42 ascends to enable the lower end of the liquid injection needle 431 to move to the upper side of the battery containing jig 23, then the mounting bar 43 drives the liquid injection needle 431 on the fixing plate to move to the upper side of the corresponding liquid injection hole 2411, then the fixing plate 42 moves downwards to enable the liquid injection needle 431 to penetrate through the liquid injection hole 2411 to be inserted into the liquid injection sleeve cup 242, at the moment, electrolyte is conveyed to the liquid injection needle 431 through the electrolyte, and then liquid injection operation of the electrolyte can be conducted.
Wherein, the fixing plate 42 is vertically movably provided on the bracket 41 by the driving cylinder 3 installed on the bracket 41, and the mounting bar 43 is horizontally movably provided on the fixing plate 42 by the driving cylinder 3 provided on the fixing plate 42.
The above examples only show some embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims (10)

1. A liquid injection device is characterized by comprising a rack, wherein a base is fixedly arranged on the rack, a bearing plate is arranged on the base in a lifting manner, the bearing plate is horizontally arranged, a battery containing jig is detachably arranged on the bearing plate, and a plurality of jacks are vertically formed in the upper surface of the battery containing jig; the machine frame is further provided with a mounting frame, a mounting plate is horizontally arranged on the mounting frame and is positioned above the bearing plate, a liquid injection sleeve cup is fixedly arranged on the lower surface of the mounting plate corresponding to the jack, and the mounting plate is provided with a liquid injection hole which is communicated with the corresponding liquid injection sleeve cup and can be opened and closed corresponding to the liquid injection sleeve cup; and the machine frame is also provided with a valve island, and the liquid injection sleeve cup is connected with external vacuum pumping equipment through the valve island.
2. The liquid injection device according to claim 1, wherein a sealing plate is slidably disposed on an upper surface of the mounting plate, the sealing plate is horizontally disposed and attached to the mounting plate, and a through hole penetrating through the sealing plate is formed in the sealing plate corresponding to the liquid injection hole.
3. The liquid injection device according to claim 2, wherein a guide rail is arranged on the mounting frame, the guide rail is horizontally arranged, a slider is slidably arranged on the guide rail, a driving cylinder is further arranged on the mounting frame, the driving cylinder is in driving connection with the slider and used for driving the slider to reciprocate along the guide rail, and the sealing plate is connected with the slider through a connecting rod.
4. The liquid injection device according to claim 2, wherein an annular installation groove is formed in the upper surface of the mounting plate corresponding to the liquid injection hole, the annular installation groove is arranged around the corresponding liquid injection hole, a sealing ring is embedded in the annular installation groove, and the upper end of the sealing ring protrudes out of the upper surface of the mounting plate.
5. The liquid injection device according to claim 3, wherein an elastic sealing block is further disposed in the liquid injection hole, the elastic sealing block is disposed in sealing fit with the liquid injection hole, an opening penetrating through the elastic sealing hole is formed in the elastic sealing block, and inner side walls of the opening are abutted to each other in a sealing manner.
6. The filling device according to claim 5, wherein the upper surface of the elastic sealing block is arranged to be inclined downwards towards the upper end of the opening.
7. The liquid injection device according to claim 1, wherein the mounting frame is arranged on the rack in a liftable manner.
8. The liquid injection device according to claim 1, wherein the mounting frame is arranged on the rack in a liftable manner through a driving cylinder arranged on the rack, a first slide bar is further arranged on the mounting frame, the first slide bar is vertically arranged, and the first slide bar is connected with the bracket through a linear bearing.
9. The liquid injection device according to claim 1, wherein the receiving plate is arranged on the base in a liftable manner through a driving cylinder arranged on the base, a second slide rod is further arranged on the base, the second slide rod is arranged vertically, and the receiving plate is connected with the second slide rod through a linear bearing.
10. The liquid injection device according to claim 1, wherein a liquid guiding mechanism is further arranged on the frame, the liquid guiding mechanism includes a support arranged on the frame, a fixing plate is arranged on the support in a liftable manner, a mounting bar is arranged on the fixing plate in a horizontally movable manner, a liquid injection needle is vertically arranged on the mounting bar corresponding to the liquid injection hole, and a connector communicated with the corresponding liquid injection needle is further arranged on the mounting bar corresponding to the liquid injection needle.
CN202111582609.0A 2021-12-22 2021-12-22 Liquid injection device Pending CN114122642A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202111582609.0A CN114122642A (en) 2021-12-22 2021-12-22 Liquid injection device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202111582609.0A CN114122642A (en) 2021-12-22 2021-12-22 Liquid injection device

Publications (1)

Publication Number Publication Date
CN114122642A true CN114122642A (en) 2022-03-01

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Application Number Title Priority Date Filing Date
CN202111582609.0A Pending CN114122642A (en) 2021-12-22 2021-12-22 Liquid injection device

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CN (1) CN114122642A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115241615A (en) * 2022-09-23 2022-10-25 深圳市铂纳特斯自动化科技有限公司 Lithium battery positive and negative pressure liquid injection machine

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111416095A (en) * 2020-02-28 2020-07-14 合肥国轩高科动力能源有限公司 Liquid supplementing device of lithium ion cylindrical battery
CN112928403A (en) * 2019-12-05 2021-06-08 无锡先导智能装备股份有限公司 Vacuum liquid injection cup assembly and vacuum liquid injection device
CN217306715U (en) * 2021-12-22 2022-08-26 惠州市成泰自动化科技有限公司 Liquid injection device

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112928403A (en) * 2019-12-05 2021-06-08 无锡先导智能装备股份有限公司 Vacuum liquid injection cup assembly and vacuum liquid injection device
CN111416095A (en) * 2020-02-28 2020-07-14 合肥国轩高科动力能源有限公司 Liquid supplementing device of lithium ion cylindrical battery
CN217306715U (en) * 2021-12-22 2022-08-26 惠州市成泰自动化科技有限公司 Liquid injection device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115241615A (en) * 2022-09-23 2022-10-25 深圳市铂纳特斯自动化科技有限公司 Lithium battery positive and negative pressure liquid injection machine
CN115241615B (en) * 2022-09-23 2022-11-25 深圳市铂纳特斯自动化科技有限公司 Lithium battery positive and negative pressure liquid injection machine

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