CN110518187A - Lithium battery automatic fluid injection system - Google Patents
Lithium battery automatic fluid injection system Download PDFInfo
- Publication number
- CN110518187A CN110518187A CN201910851955.0A CN201910851955A CN110518187A CN 110518187 A CN110518187 A CN 110518187A CN 201910851955 A CN201910851955 A CN 201910851955A CN 110518187 A CN110518187 A CN 110518187A
- Authority
- CN
- China
- Prior art keywords
- guide rod
- variable pump
- personal computer
- industrial personal
- fluid injection
- 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
Links
- 238000002347 injection Methods 0.000 title claims abstract description 32
- 239000007924 injection Substances 0.000 title claims abstract description 32
- 239000012530 fluid Substances 0.000 title claims abstract description 27
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims abstract description 18
- 229910052744 lithium Inorganic materials 0.000 title claims abstract description 18
- 239000007788 liquid Substances 0.000 claims abstract description 51
- 239000003792 electrolyte Substances 0.000 claims abstract description 18
- 238000004891 communication Methods 0.000 claims abstract description 6
- 238000010586 diagram Methods 0.000 description 4
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 3
- 229910001416 lithium ion Inorganic materials 0.000 description 3
- 102000004310 Ion Channels Human genes 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 238000011109 contamination Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000007773 negative electrode material Substances 0.000 description 1
- 239000007774 positive electrode material Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D9/00—Level control, e.g. controlling quantity of material stored in vessel
- G05D9/12—Level control, e.g. controlling quantity of material stored in vessel characterised by the use of electric means
-
- 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
-
- 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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Automation & Control Theory (AREA)
- Filling, Topping-Up Batteries (AREA)
Abstract
Lithium battery automatic fluid injection system, comprising: industrial personal computer；To the variable pump of battery core conveying electrolyte, it is provided with vacuum impregnating liquid pump mouth on the output pipe of the variable pump, electrolyte is injected to battery core by the vacuum impregnating liquid pump mouth；With the solenoid valve of industrial personal computer communication connection, vacuum impregnating liquid pump mouth liquid outlet described in the solenoid valve control is opened or closed；For controlling the variable pump controller of the output quantity of the variable pump, the variable pump controller and the industrial personal computer are communicated to connect；With the electronic scale of industrial personal computer communication connection.The weight information for the battery that fluid injection is completed is fed back to the industrial personal computer by the electronic scale, and the industrial personal computer sends to the variable pump controller according to feedback information and instructs, and adjusts the output quantity of the variable pump.Liquid injection system of the invention controls the output quantity of electrolyte using variable pump, can be adjusted according to the battery weight information that electronic scale is fed back to reservoir quantity, system stability is good, high degree of automation.
Description
Technical field
The present invention relates to lithium battery manufacturing technology field more particularly to a kind of lithium battery automatic fluid injection systems.
Background technique
Lithium ion battery in normal work, is drawn just by the negative pole end of negative current collector extraction and by plus plate current-collecting body
Electronics access is extremely formed with external circuit, the lithium ion in electrolyte and positive and negative electrode active material forms ion channels, and electronics is logical
Circuit is collectively formed in road and ion channels, to achieve the purpose that normal work.As the demand of lithium ion battery is gradually increased,
People are also higher and higher to the performance requirement of its various aspects, especially for the requirement of the cycle performance of battery, and the note of battery
Liquid measure is the important parameter for guaranteeing circulating battery, and reservoir quantity is very few to will lead to that loop attenuation is too fast, causes the service life of battery
Decay too fast, reservoir quantity excessively will cause the swollen liquid of battery again, destroy the overall structure of battery.
Lithium battery filling machine used in the production process of lithium battery, which is substantially, at present carries out fluid injection using constant displacement pump,
Reservoir quantity is unable to adjust automatically, is open loop type control system, and stability is poor, and strip, needle are easy to appear in injection process
Pointed electrolyte contamination.
Summary of the invention
The purpose of the present invention is to provide a kind of lithium battery automatic fluid injection systems of closed loop control.
To achieve the goals above, the present invention takes following technical solution:
Lithium battery automatic fluid injection system, comprising: industrial personal computer；To the variable pump of battery core conveying electrolyte, the variable pump
It is provided with vacuum impregnating liquid pump mouth on output pipe, electrolyte is injected to battery core by the vacuum impregnating liquid pump mouth；With the industry control
The solenoid valve of machine communication connection, vacuum impregnating liquid pump mouth liquid outlet described in the solenoid valve control open or close；For controlling
The variable pump controller of the output quantity of the variable pump, the variable pump controller and the industrial personal computer communicate to connect；With it is described
The electronic scale of industrial personal computer communication connection.
From the above technical scheme, it is provided with electronic scale and variable pump in liquid injection system of the invention, is adopted with existing
It is compared with the system that constant displacement pump carries out battery core fluid injection, the weight information for the battery that fluid injection is completed can be fed back to industry control by electronic scale
Machine, industrial personal computer can send to variable pump controller according to feedback information and instruct, and carry out the output quantity of adjust automatically variable pump, realization is closed
Ring type control, improves the stability of system.
Further, the vacuum impregnating liquid pump mouth includes: the shell of hollow tubular, and the interior of shell, which has, extends to institute
It states the reservoir channel of outer casing bottom, the reservoir channel and is set to the inlet of the cover top portion and is set to the shell
The liquid outlet of bottom is connected to；The plug being set at the liquid outlet, the plug can move up and down in the reservoir channel,
So that the liquid outlet is blocked or be opened the liquid outlet；It is set to the guide rod of the reservoir channel, the guide rod
Bottom be connected with the plug；The mobile control mechanism of the guide rod being connected with the guide rod, the mobile control mechanism of the guide rod are logical
The guide rod control plug is crossed to move up and down.
Plug is set to the bottom of reservoir channel, after vacuum impregnating liquid pump mouth is closed, remaining electrolyte is terminated to note
In liquid channel, it will not flow outwardly, not will cause dropping liquid, can be polluted to avoid to battery core.
Further, the mobile control mechanism of the guide rod is cylinder, and the piston rod of cylinder protrudes into the reservoir channel
And it is connected with the guide rod.
Using cylinder as the mobile control mechanism of guide rod, structure is simple, and cylinder is standard component, at low cost.
Further, the mobile control mechanism of the guide rod is set to the top of the shell.
Further, the guide rod and the plug are linked together.
Further, the inlet is located on the side wall of the cover top portion.
Detailed description of the invention
It in order to illustrate the embodiments of the present invention more clearly, below will be to required use in embodiment or description of the prior art
Attached drawing do simple introduction, it should be apparent that, drawings in the following description are only some embodiments of the invention, for ability
For the those of ordinary skill of domain, without creative efforts, it can also be obtained according to these attached drawings other attached
Figure.
Fig. 1 is the structural block diagram of the embodiment of the present invention；
Fig. 2 is the circuit diagram of the embodiment of the present invention；
Fig. 3 is the structural schematic diagram of vacuum impregnating of embodiment of the present invention liquid pump mouth；
Fig. 4 is the cross-sectional view of the line A-A along Fig. 3.
A specific embodiment of the invention is described in more detail below in conjunction with attached drawing.
Specific embodiment
In order to above and other objects of the present invention, feature and advantage can be become apparent from, the embodiment of the present invention is cited below particularly,
And cooperate appended diagram, it is described below in detail.
As depicted in figs. 1 and 2, the lithium battery automatic fluid injection system of the present embodiment includes industrial personal computer 1, variable pump 2, variable pump
Controller 3, vacuum impregnating liquid pump mouth 4, solenoid valve 5 and electronic scale 6.Industrial personal computer 1 is controlled by signal wire (shielding line) and variable pump
Device 3 communicates to connect, and Xiang Bianliang pump controller 3 sends the information command of reservoir quantity, and variable pump controller 3 controls variable according to instruction
The output quantity of pump 3.The intake line of variable pump 3 is connected with electrolyte fluid reservoir, and vacuum impregnating liquid pump mouth 4 is arranged on output pipe,
Electrolyte is injected to lithium battery by vacuum impregnating liquid pump mouth 4.4 liquid outlet of vacuum impregnating liquid pump mouth is opened or closed by solenoid valve 5
Control, solenoid valve 5 and industrial personal computer 1 communicate to connect.Industrial personal computer 1 is also connected by shielding line with electronic scale 6 simultaneously, and electronic scale 6 is used
It weighs in the lithium battery that fluid injection is completed.
Referring to Fig. 3 and Fig. 4, the vacuum impregnating liquid pump mouth 4 of the present embodiment includes shell 4-1, and shell 4-1 is hollow tubulose,
There is reservoir channel Q, reservoir channel Q to extend to the bottom of shell 4-1 for its inside, connect with the liquid outlet 4-1b of the bottom shell 4-1
It is logical.Inlet 4-1a is machined at the top of shell 4-1, inlet 4-1a is located on the side wall at the top of shell 4-1, inlet 4-
1a is connected to reservoir channel Q, and electrolyte is injected from inlet 4-1a, is flowed out into reservoir channel Q, then from liquid outlet 4-1b.
Plug 4-2 is provided at liquid outlet 4-1b, plug 4-2 can be moved up and down in reservoir channel Q, thus to liquid outlet 4-1b into
Row blocks or opens liquid outlet 4-1b.A guide rod 4-3, the bottom of guide rod 4-3 and plug 4-2 are provided in reservoir channel Q
It is connected, for controlling movement of the plug 4-2 in reservoir channel Q, the guide rod 4-3 and plug 4-2 of the present embodiment are linked together.In
The mobile control mechanism 4-5 of guide rod is provided with outside the top of shell 4-1, the mobile control mechanism 4-5 of the guide rod of the present embodiment is cylinder,
The piston rod of cylinder protrudes into reservoir channel Q, is connected with guide rod 4-3, can pass through guide rod 4-3 when cylinder movement and drive plug 4-2
It moves up or down.The movement (up and down motion) of cylinder is controlled by solenoid valve 5.
Plug 4-2 is set to the bottom of reservoir channel Q by the present embodiment, and plug 4-2 is by the liquid outlet of the bottom reservoir channel Q
After 4-1b is blocked, remaining electrolyte is terminated in reservoir channel Q, will not be flowed outwardly, not will cause dropping liquid, compared to existing
Some fluid injection syringe needles are located at the top of needle tubing due to switching, even if after being closed by switch control fluid injection, remaining electricity in needle tubing
Solution liquid still can flow outwardly, it may appear that strip, tip-like electrolyte pollute battery core.
The workflow of liquid injection system of the invention are as follows:
Battery core is sent to fluid injection station, industrial personal computer 1 sends control signal to solenoid valve 5, and solenoid valve 5 is according to control signal control
Cylinder movement processed drives guide rod and plug to move upwards by the piston rod of cylinder, and the liquid outlet of vacuum impregnating liquid pump mouth 4 is opened；
Industrial personal computer 1 sends the information command of initial reservoir quantity to variable pump controller 3 simultaneously, and variable pump controller 3 is controlled according to instruction
Electrolyte is injected electrolyte, single battery core fluid injection to battery core by vacuum impregnating liquid pump mouth 4 by the output quantity of variable pump 2, variable pump 2
After, solenoid valve 5 closes vacuum impregnating liquid pump mouth 4 by controlling the movement of cylinder, stops the fluid injection of battery core；What fluid injection was completed
Battery core is weighed at electronic scale 6, and weight information is fed back to industrial personal computer 1, and industrial personal computer 1 is according to feedback at electronic scale 6
Information is adjusted the reservoir quantity of variable pump 2, and the control system of a closed loop is consequently formed.
Liquid injection system of the invention carries out the output of electrolyte using variable pump, is carried out with the prior art using constant displacement pump
Fluid injection is different, and the output quantity of variable pump can be with adjust automatically, the information fed back by industrial personal computer according to electronic scale, controls variable pump root
Reservoir quantity size is automatically adjusted according to fluid injection situation, since liquid injection system has feedback element, closed-loop control is carried out to reservoir quantity, surely
Qualitative more preferable, the degree of automation is higher.
The foregoing description of the disclosed embodiments enables those skilled in the art to implement or use the present invention.
Various modifications to these embodiments will be readily apparent to those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, of the invention
It is not intended to be limited to embodiment illustrated herein, and is to fit to consistent with the principles and novel features disclosed in this article
Widest range.
Claims (6)
1. lithium battery automatic fluid injection system characterized by comprising
Industrial personal computer；
To the variable pump of battery core conveying electrolyte, it is provided with vacuum impregnating liquid pump mouth on the output pipe of the variable pump, passes through institute
It states vacuum impregnating liquid pump mouth and injects electrolyte to battery core；
With the solenoid valve of industrial personal computer communication connection, the opening of vacuum impregnating liquid pump mouth liquid outlet described in the solenoid valve control or
It closes；
For controlling the variable pump controller of the output quantity of the variable pump, the variable pump controller is communicated with the industrial personal computer
Connection；
With the electronic scale of industrial personal computer communication connection.
2. lithium battery automatic fluid injection system as described in claim 1, it is characterised in that: the vacuum impregnating liquid pump mouth includes:
The shell of hollow tubular, the interior of shell have the reservoir channel for extending to the outer casing bottom, the reservoir channel
It is connected to the inlet for being set to the cover top portion and the liquid outlet for being set to the outer casing bottom；
The plug being set at the liquid outlet, the plug can move up and down in the reservoir channel, thus to it is described go out
Liquid mouth is blocked or is opened the liquid outlet；
It is set to the guide rod of the reservoir channel, the bottom of the guide rod is connected with the plug；
The mobile control mechanism of the guide rod being connected with the guide rod, the mobile control mechanism of the guide rod pass through described in guide rod control
Plug moves up and down.
3. lithium battery automatic fluid injection system as claimed in claim 2, it is characterised in that: the mobile control mechanism of the guide rod is gas
Cylinder, the piston rod of cylinder protrude into the reservoir channel and are connected with the guide rod.
4. lithium battery automatic fluid injection system as claimed in claim 2 or claim 3, it is characterised in that: the mobile control mechanism of the guide rod
It is set to the top of the shell.
5. lithium battery automatic fluid injection system as claimed in claim 2 or claim 3, it is characterised in that: the guide rod and the plug connect
It is integrated.
6. lithium battery automatic fluid injection system as claimed in claim 2 or claim 3, it is characterised in that: the inlet is located at described outer
On side wall at the top of shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910851955.0A CN110518187A (en) | 2019-09-10 | 2019-09-10 | Lithium battery automatic fluid injection system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910851955.0A CN110518187A (en) | 2019-09-10 | 2019-09-10 | Lithium battery automatic fluid injection system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110518187A true CN110518187A (en) | 2019-11-29 |
Family
ID=68630701
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910851955.0A Pending CN110518187A (en) | 2019-09-10 | 2019-09-10 | Lithium battery automatic fluid injection system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110518187A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116666921A (en) * | 2023-07-31 | 2023-08-29 | 宁德时代新能源科技股份有限公司 | Liquid injection amount control method, device, equipment, medium, product and liquid injection system |
| CN117219984A (en) * | 2023-11-07 | 2023-12-12 | 深圳市恒永达科技股份有限公司 | Liquid injection control method and device for new energy battery pack |
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| CN203502843U (en) * | 2013-08-21 | 2014-03-26 | 凯迈（江苏）机电有限公司 | Weighing and liquid injection control system for lithium battery |
| CN108321350A (en) * | 2018-01-29 | 2018-07-24 | 深圳市东汇精密机电有限公司 | A kind of fluid injection implementation method of the full-automatic filling machine of lithium battery |
| CN108417772A (en) * | 2018-05-18 | 2018-08-17 | 东莞市天逸自动化机械设备有限公司 | A kind of modified form vacuum liquid filling mechanism |
| CN109555661A (en) * | 2019-01-16 | 2019-04-02 | 深圳市利华美科技有限公司 | A kind of flow adjustment precision topping-up pump |
| CN210156478U (en) * | 2019-09-10 | 2020-03-17 | 珠海冠宇电池有限公司 | Automatic liquid system of annotating of lithium cell |
-
2019
- 2019-09-10 CN CN201910851955.0A patent/CN110518187A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203502843U (en) * | 2013-08-21 | 2014-03-26 | 凯迈（江苏）机电有限公司 | Weighing and liquid injection control system for lithium battery |
| CN108321350A (en) * | 2018-01-29 | 2018-07-24 | 深圳市东汇精密机电有限公司 | A kind of fluid injection implementation method of the full-automatic filling machine of lithium battery |
| CN108417772A (en) * | 2018-05-18 | 2018-08-17 | 东莞市天逸自动化机械设备有限公司 | A kind of modified form vacuum liquid filling mechanism |
| CN109555661A (en) * | 2019-01-16 | 2019-04-02 | 深圳市利华美科技有限公司 | A kind of flow adjustment precision topping-up pump |
| CN210156478U (en) * | 2019-09-10 | 2020-03-17 | 珠海冠宇电池有限公司 | Automatic liquid system of annotating of lithium cell |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116666921A (en) * | 2023-07-31 | 2023-08-29 | 宁德时代新能源科技股份有限公司 | Liquid injection amount control method, device, equipment, medium, product and liquid injection system |
| CN116666921B (en) * | 2023-07-31 | 2024-01-26 | 宁德时代新能源科技股份有限公司 | A method for controlling the injection amount a device(s) Equipment, medium and liquid injection system |
| CN117219984A (en) * | 2023-11-07 | 2023-12-12 | 深圳市恒永达科技股份有限公司 | Liquid injection control method and device for new energy battery pack |
| CN117219984B (en) * | 2023-11-07 | 2024-03-08 | 深圳市恒永达科技股份有限公司 | Liquid injection control method and device for new energy battery pack |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Address after: 519180 No. 209, Pearl Peak Avenue, Jingan Town, Doumen District, Zhuhai City, Guangdong Province (South First Floor of A Factory Building) Applicant after: Zhuhai Guanyu Battery Co., Ltd Address before: 519180 No. 209, Pearl Peak Avenue, Jingan Town, Doumen District, Zhuhai City, Guangdong Province (South First Floor of A Factory Building) Applicant before: ZHUHAI COSLIGHT BATTERY Co.,Ltd. |
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