CN116906608A - Battery formation negative pressure control box and battery formation negative pressure system - Google Patents
Battery formation negative pressure control box and battery formation negative pressure system Download PDFInfo
- Publication number
- CN116906608A CN116906608A CN202311143757.1A CN202311143757A CN116906608A CN 116906608 A CN116906608 A CN 116906608A CN 202311143757 A CN202311143757 A CN 202311143757A CN 116906608 A CN116906608 A CN 116906608A
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- valve
- negative pressure
- battery formation
- communicated
- steering engine
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- 230000015572 biosynthetic process Effects 0.000 title claims abstract description 65
- 230000001105 regulatory effect Effects 0.000 claims abstract description 34
- 239000007788 liquid Substances 0.000 claims description 27
- 238000002347 injection Methods 0.000 claims description 10
- 239000007924 injection Substances 0.000 claims description 10
- 238000007789 sealing Methods 0.000 claims description 8
- 229910010293 ceramic material Inorganic materials 0.000 claims description 4
- 230000004044 response Effects 0.000 abstract description 7
- 239000003792 electrolyte Substances 0.000 description 17
- 230000007797 corrosion Effects 0.000 description 5
- 238000005260 corrosion Methods 0.000 description 5
- 230000001276 controlling effect Effects 0.000 description 4
- 239000011244 liquid electrolyte Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 230000002452 interceptive effect Effects 0.000 description 2
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 1
- 238000001994 activation Methods 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 229910001416 lithium ion Inorganic materials 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
- F16K3/02—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor
- F16K3/04—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor with pivoted closure members
- F16K3/06—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor with pivoted closure members in the form of closure plates arranged between supply and discharge passages
- F16K3/08—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor with pivoted closure members in the form of closure plates arranged between supply and discharge passages with circular plates rotatable around their centres
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
- F16K11/10—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with two or more closure members not moving as a unit
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/04—Construction of housing; Use of materials therefor of sliding valves
- F16K27/044—Construction of housing; Use of materials therefor of sliding valves slide valves with flat obturating members
- F16K27/045—Construction of housing; Use of materials therefor of sliding valves slide valves with flat obturating members with pivotal obturating members
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
- F16K3/02—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor
- F16K3/0263—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor using particular material or covering means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
- F16K3/30—Details
- F16K3/314—Forms or constructions of slides; Attachment of the slide to the spindle
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
- F16K3/30—Details
- F16K3/32—Means for additional adjustment of the rate of flow
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K37/00—Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given
- F16K37/0075—For recording or indicating the functioning of a valve in combination with test equipment
- F16K37/0091—For recording or indicating the functioning of a valve in combination with test equipment by measuring fluid parameters
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K51/00—Other details not peculiar to particular types of valves or cut-off apparatus
- F16K51/02—Other details not peculiar to particular types of valves or cut-off apparatus specially adapted for high-vacuum installations
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D3/00—Arrangements for supervising or controlling working operations
- F17D3/01—Arrangements for supervising or controlling working operations for controlling, signalling, or supervising the conveyance of a product
-
- 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
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/44—Methods for charging or discharging
-
- 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)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Gas Exhaust Devices For Batteries (AREA)
- Filling, Topping-Up Batteries (AREA)
Abstract
The invention discloses a battery formation negative pressure control box and a battery formation negative pressure system, wherein the battery formation negative pressure control box comprises a box body and a steering engine regulating valve, and the box body is provided with a positive pressure source interface, a negative pressure source interface and a vacuumizing interface; the steering engine regulating valve comprises a steering engine, a valve body and a valve core, wherein the valve body is arranged on the box body and is provided with a gas channel, the valve core penetrates through the valve body and is partially arranged in the gas channel, the gas channel is provided with a first gas port and a second gas port, the first gas port is communicated with the positive pressure source interface and the negative pressure source interface, and the second gas port is communicated with the vacuumizing interface; the gas channel is provided with an adjusting gas port between the first gas port and the second gas port, and the steering engine is in driving connection with the valve core so as to cover the area of the adjusting gas port by the adjusting valve core, thereby enabling the gas flow of the gas channel to be adjusted. According to the technical scheme, the steering engine regulating valve is higher in air pressure regulating control precision, quicker in response, small in integrated size and low in cost.
Description
Technical Field
The invention relates to the technical field of battery formation equipment, in particular to a battery formation negative pressure control box and a battery formation negative pressure system.
Background
The lithium ion battery is manufactured into a finished battery, an important activation process is provided in the middle, namely a formation process, electrolyte is generated along with a plurality of chemical reactions in the formation process, the electrolyte generated during formation of the battery is required to be discharged in time in the process, and a battery formation negative pressure control box is communicated to a liquid injection port of the battery through a suction nozzle for vacuumizing or breaking vacuum so as to extract or put back the electrolyte.
When the traditional battery formation negative pressure control box is vacuumized and broken, the positive pressure is regulated by an electric proportional valve to control the pressing size of a pneumatic control pressure reducing valve membrane to control the pressure size of gas, so that firstly, the electric proportional valve indirectly controls the pneumatic control pressure reducing valve, the response time is slower, and the pressure regulating precision is difficult to ensure; secondly, the electric proportional valve and the pneumatic control pressure reducing valve are arranged in a split mode, so that the occupied internal space of the battery formation negative pressure control box is large, and the volume is large; thirdly, the electric proportional valve and the pneumatic control pressure reducing valve are added with high cost.
Disclosure of Invention
The invention mainly aims to provide a battery formation negative pressure control box and a battery formation negative pressure system, which aim to realize higher control precision of regulating air pressure of a steering engine regulating valve, quicker response, small integrated volume and reduced space occupation of the negative pressure control box, so that the structure is compact, two parts of a traditional electric proportional valve and a pneumatic control pressure reducing valve are replaced, and the cost is reduced.
In order to achieve the above object, the present invention provides a battery formation negative pressure control box, comprising:
the box body is provided with a positive pressure source interface, a negative pressure source interface and a vacuumizing interface;
the steering engine regulating valve comprises a steering engine, a valve body and a valve core, wherein the valve body is arranged on the box body, the valve body is provided with a gas channel, the valve core penetrates through the valve body and is partially arranged in the gas channel, the gas channel is provided with a first gas port and a second gas port, the first gas port is communicated with the positive pressure source interface and the negative pressure source interface, and the second gas port is communicated with the vacuumizing interface;
the gas channel is provided with an adjusting gas port between the first gas port and the second gas port, and the steering engine is in driving connection with the valve core so as to adjust the area of the valve core covering the adjusting gas port, so that the gas flow of the gas channel can be adjusted.
Further, the valve body comprises an outer valve body and an inner valve body, the outer valve body is mounted on the box body, a first air cavity, a second air cavity, a third air cavity and a fourth air cavity are arranged in the outer valve body, the first air cavity is provided with the first air port, and the fourth air cavity is provided with the second air port;
the internal valve body is arranged in the third air cavity, an adjusting air cavity is arranged in the internal valve body, the adjusting air cavity is provided with a first air hole, a second air hole and an adjusting air hole arranged between the first air hole and the second air hole, the second air cavity is communicated with the first air cavity and the second air hole, the third air cavity is communicated with the first air hole and the fourth air cavity, and the valve core penetrates through the internal valve body and is partially arranged in the adjusting air cavity.
Further, the valve core comprises a valve core body and a rotary chuck, an output shaft of the steering engine is connected with the valve core body through a steering engine disc drive, clamping columns are arranged on two opposite sides of the valve core body, clamping grooves are formed in two opposite sides of the rotary chuck, the valve core body can extend into the clamping grooves through the clamping columns to drive the rotary chuck to rotate, and the rotary chuck covers the area of the air port to be adjusted.
Further, the bottom cover of interior valve body is equipped with sealed lid, sealed lid with be provided with the chassis between the spin chuck, the chassis has been seted up adjust the gas port, sealed lid has been seted up the second gas pocket, the relative both sides of chassis are provided with the guide bar, be provided with the guide way on the internal face of interior valve body, the guide bar with the guide way adaptation.
Further, the rotary chuck and the chassis are made of ceramic materials.
Further, the two sides of the inner wall of the inner valve body are respectively provided with a first limiting block and a second limiting block which are arranged at intervals, and the first limiting block and the second limiting block are used for being abutted to the clamping column so as to limit the rotation range of the valve core.
Further, a first two-way valve is communicated between the steering engine regulating valve and the pipeline of the positive pressure source interface, a second two-way valve is communicated between the steering engine regulating valve and the pipeline of the negative pressure source interface, a first pilot valve is communicated between the first two-way valve and the pipeline of the positive pressure source interface, and a second pilot valve is communicated between the second two-way valve and the pipeline of the positive pressure source interface.
Further, install the PCB board on the box body, the steering wheel governing valve with the pipeline between the evacuation interface is last to be linked together there are first pressure digital display table and second pressure digital display table, first pressure digital display table detects the range of atmospheric pressure value and is less than second pressure digital display table, first pressure digital display table with be equipped with the solenoid valve between the pipeline of steering wheel governing valve, the PCB board with first pressure digital display table the second pressure digital display table steering wheel solenoid valve signal connection.
The invention also provides a battery formation negative pressure system, which comprises battery formation equipment and a battery formation negative pressure control box;
the battery formation equipment comprises a screw, a plurality of buffer containers and a plurality of suction nozzles, wherein the screw is communicated with the buffer containers, the buffer containers are communicated with the suction nozzles one by one, the suction nozzles are used for being communicated with a liquid injection port of a battery, and the screw is communicated with the vacuumizing interface.
Further, a gas-liquid separator is communicated between the steering engine regulating valve and the pipeline of the screw rod, and a liquid outlet of the gas-liquid separator is sequentially communicated with a first switch valve, a liquid draining container and a second switch valve.
Compared with the prior art, the invention has the advantages that: according to the technical scheme, the steering engine, the valve core and the valve body are integrated by adopting the steering engine regulating valve in the battery formation negative pressure control box, so that the steering engine has the characteristics of small volume, high control angle precision and quick response, the control precision of regulating the air pressure is higher, the response is faster, and the air pressure can be regulated in time; and replace traditional electric proportional valve and pneumatic control relief pressure valve components of a whole that can function independently setting, steering wheel governing valve has integrated steering wheel volume littleer, reduces battery formation negative pressure control box inner space and occupies, can leave the spare space and install other parts, only needs a steering wheel governing valve alright replace traditional electric proportional valve and pneumatic control relief pressure valve cooperation form of using simultaneously, can accurate control atmospheric pressure size, effective reduce cost.
Drawings
Fig. 1 is a schematic diagram of the gas circuit of the battery formation negative pressure control box of the invention.
Fig. 2 is a schematic structural view of the battery formation negative pressure control box of the present invention.
Fig. 3 is an exploded view of the battery formation negative pressure control box of the present invention.
Fig. 4 is a cross-sectional view of the battery formation negative pressure control box of the present invention.
Fig. 5 is an exploded cross-sectional view of the battery formation negative pressure system of the present invention.
Fig. 6 is a cross-sectional view of the valve body and valve core in the battery formation negative pressure control box of the present invention.
Fig. 7 is a top view of the battery formation negative pressure control box of the present invention with the spin chuck and chassis separated.
Fig. 8 is a top view of the assembled battery formation negative pressure control box spin chuck and chassis of the present invention.
Fig. 9 is a schematic structural view of the battery formation negative pressure control box of the present invention.
Fig. 10 is a schematic view of another angle of the battery formation negative pressure control box according to the present invention.
Fig. 11 is a schematic diagram of the gas path of the battery formation apparatus of the battery formation negative pressure system of the present invention.
Fig. 12 is a schematic diagram of the gas circuit of the battery formation negative pressure system of the present invention.
Reference numerals: 100. a case body; 233. a clamping column; 101. a positive pressure source interface; 234. a clamping groove; 102. a negative pressure source interface; 223. a chassis; 103. a vacuumizing interface; 224. sealing cover; 200. steering engine regulating valve; 205. a first air hole; 210. steering engine; 206. a second air hole; 220. a valve body; 201. a first air chamber; 230. a valve core; 202. a second air chamber; 208. adjusting the air cavity; 203. a third air chamber; 207. regulating the air port; 204. a fourth air chamber; 227. a guide rib; 221. an outer valve body; 228. a guide groove; 222. an inner valve body; 410. a second pressure digital display meter; 225. a first limiting block; 420. a first pressure digital display meter; 226. a second limiting block; 600. a screw; 310. a first two-way valve; 700. a buffer container; 320. a second two-way valve; 800. a suction nozzle; 311. a first pilot valve; 900. a gas-liquid separator; 321. a second pilot valve; 910. a first switching valve; 500. a PCB board; 920. a second switching valve; 231. a valve core body; 930. a liquid discharge container; 232. a rotating chuck; 1000. a triplet; 430. an electromagnetic valve; 240. steering engine bracket; 104. a first gas port; 105. a second gas port; 211. steering wheel.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In addition, in the embodiments of the present invention, there is a description of "first", "second", etc., which are for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. In addition, the technical solutions between the embodiments may be combined with each other, but must be based on the implementation by those of ordinary skill in the art.
Referring to fig. 1 to 10, the present invention provides a negative pressure control box for battery formation.
The battery formation negative pressure control box comprises a box body 100 and a steering engine regulating valve 200, wherein a positive pressure source interface 101, a negative pressure source interface 102 and a vacuumizing interface 103 are arranged on the box body 100; the steering engine regulating valve 200 comprises a steering engine 210, a valve body 220 and a valve core 230, wherein the valve body 220 is arranged on the box body 100, the valve body 220 is provided with a gas channel, the valve core 230 penetrates through the valve body 220 and is partially arranged in the gas channel, the gas channel is provided with a first gas port 104 and a second gas port 105, the first gas port 104 is communicated with the positive pressure source interface 101 and the negative pressure source interface 102, and the second gas port 105 is communicated with the vacuumizing interface 103; the gas channel is provided with a regulating gas port 207 between the first gas port 104 and the second gas port 105; the steering engine 210 drives the connecting spool 230 so that the adjusting spool 230 covers the area of the adjusting air port 207, and the air flow of the air channel can be adjusted.
Specifically, the steering engine 210 is an angle servo driver, and is suitable for a control system that requires an angle to be continuously changed and can be maintained, and an output shaft of the steering engine 210 is used for connecting the valve core 230 and driving the valve core 230 to rotate. The positive pressure source interface 101 is used for being connected with an external positive pressure source to provide positive pressure, the negative pressure source interface 102 is used for being connected with an external negative pressure source to provide negative pressure, and the vacuumizing interface 103 is used for being connected with a suction nozzle 800 connected with a battery liquid injection port in an external battery formation negative pressure system so as to pump out and put back electrolyte in the battery. When the electrolyte of the battery is required to be sucked out, an external negative pressure source is started to generate negative pressure to start vacuumizing, the electrolyte in the battery is sucked out, and the steering engine 210 of the steering engine regulating valve 200 is used for starting to regulate the rotation angle of the valve core 230, so that the area of the end part of the valve core 230, which covers the internal regulating air port 207 of the valve body 220, is changed, and thus the internal air can be changed by regulating the flow of the air port 207, and the air pressure is changed. When the battery electrolyte is required to be placed back into the battery electrolyte injection port, an external positive pressure source is started to generate positive pressure to start breaking vacuum, and meanwhile, the air pressure can be regulated through the steering engine regulating valve 200, so that the electrolyte is returned back to the battery electrolyte injection port again. The steering engine adjusting valve 200 integrates the steering engine 210, the valve core 230 and the valve body 220, and the steering engine 210 has the characteristics of small volume, high control angle precision and quick response, and has higher control precision of adjusting the air pressure, quicker response and capability of adjusting the air pressure in time; and steering wheel governing valve 200 replaces traditional electrical proportion valve and pneumatic control relief pressure valve components of a whole that can function independently setting, and steering wheel governing valve 200 has integrated steering wheel 210 volume littleer, reduces battery formation negative pressure control box inner space and occupies, can leave the spare space and install other parts and parts, only needs a steering wheel governing valve 200 alright replace traditional electrical proportion valve and pneumatic control relief pressure valve cooperation mode of using simultaneously, can accurate control atmospheric pressure size, effectively reduce cost.
Referring to fig. 2 to 6, the valve body 220 includes an outer valve body 221 and an inner valve body 222, the outer valve body 221 is mounted to the case 100, a first air chamber 201, a second air chamber 202, a third air chamber 203, a fourth air chamber 204 are provided in the outer valve body 221, the first air chamber 201 has a first air port, and the fourth air chamber 204 has a second air port; the inner valve body 222 is arranged in the third air cavity 203, an adjusting air cavity is arranged in the inner valve body 222, the adjusting air cavity is provided with a first air hole 205, a second air hole 206 and an adjusting air hole 207 arranged between the first air hole 205 and the second air hole 206, the second air cavity 202 is communicated with the first air cavity 201 and the second air hole 206, the third air cavity 203 is communicated with the first air hole 205 and the fourth air cavity 204, and the valve core 230 penetrates through the inner valve body 222 and is partially arranged in the adjusting air cavity. Specifically, the direction of gas flow may be: when the vacuum is broken, the vacuum flows from the positive pressure source interface 101 through the first air port 104, the first air cavity 201, the second air cavity 202, the air adjusting port 207, the second air hole 206, the air adjusting cavity 208, the first air hole 205, the third air cavity 203, the fourth air cavity 204, the second air port 105 and the vacuumizing interface 103 in sequence. During vacuumizing, the gas flows through the second gas port 105, the fourth gas cavity 204, the third gas cavity 203, the first gas hole 205, the adjusting gas cavity 208, the adjusting gas port 207, the second gas hole 206, the second gas cavity 202, the first gas cavity 201, the first gas port 104 and the negative pressure source interface 102 in sequence from the vacuumizing interface 103. Further, the outer valve body 221 is further provided with a steering engine bracket 240, and the steering engine bracket 240 is used for installing the steering engine 210 so as to ensure that the steering engine 210 is supported when the steering engine 210 operates, and ensure stable structure.
Referring to fig. 2 to 8, the valve core 230 includes a valve core body 231 and a rotating chuck 232, an output shaft of the steering engine 210 is connected with the valve core body 231 through a steering engine disk 211, clamping posts 233 are arranged on two opposite sides of the valve core body 231, clamping grooves 234 are arranged on two opposite sides of the rotating chuck 232, the valve core body 231 can extend into the clamping grooves 234 through the clamping posts 233 to drive the rotating chuck 232 to rotate, and the rotating chuck 232 covers the area of the air adjusting port 207 to be adjustable. Specifically, the spin chuck 232 can cover the area of the adjustment gas port 207, thereby adjusting the gas flow rate of the adjustment gas port 207 and the gas pressure. The clamping column 233 stretches into the clamping groove 234 to drive the rotary chuck 232 to rotate, so that the structure is simple and easy to realize.
Referring to fig. 2 to 8, a sealing cover 224 is provided on the bottom cover of the inner valve body 222, a chassis 223 is provided between the sealing cover 224 and a rotating chuck 232, an adjusting air port 207 is provided on the chassis 223, a second air hole 206 is provided on the sealing cover 224, guide ribs 227 are provided on two opposite sides of the chassis 223, a guide groove 228 is provided on the inner wall surface of the inner valve body 222, and the guide ribs 227 are adapted to the guide groove 228. Specifically, the rotary chuck 232 can rotate relative to the chassis 223, and the rotary chuck 232 covers the chassis 223 to adjust the covering area of the air port 207, so as to change the air passing flow and further change the air pressure. The sealing cover 224 of this embodiment may be made of rubber, and is waterproof and dustproof through elastic interference fit, and keeps the assembly stability of the chassis 223. So set up, when installing interior valve body 222 with spin chuck 232, chassis 223, sealed lid 224, can be through first with the guide bar 227 card in the guide slot 228 of interior valve body 222 in the chassis 223 realize the location direction, afterwards push up spin chuck 232 and chassis 223 until the draw-in groove 234 of spin chuck 232 is stretched to the draw-in post 233 of case body 231, again with sealed lid 224 lid in the bottom of sealed interior valve body 222, accomplish the assembly, so through guide bar 227 and guide slot 228 direction installation, assembly efficiency is high, stable in structure.
Referring to fig. 4 to 6, the spin chuck 232 and the chassis 223 are made of ceramic materials. Specifically, the electrical proportional valve conventionally used for adjusting the air pressure is not corrosion-resistant and is easily damaged by corrosion of gaseous and liquid electrolytes, and the rotary chuck 232 and the chassis 223 which are matched with the air port 207 to adjust the air pressure are made of ceramic materials, so that corrosion of the rotary chuck 232 and the chassis 223 caused by corrosion of the electrolytes can be prevented, the matched service life of the rotary chuck 232 and the chassis 223 can be ensured, and damage of parts is prevented.
Referring to fig. 4 to 6, two sides of the inner wall of the inner valve body 222 are respectively provided with a first limiting block 225 and a second limiting block 226 arranged at intervals, and the first limiting block 225 and the second limiting block 226 are used for abutting against the clamping post 233 so as to limit the rotation range of the valve core 230. For example: in the initial state, the area of the adjusting air port 207 on the chassis 223 is in the fully opened state, the opening area of the adjusting air port 207 is maximized, the two clamping posts 233 on the valve core body 231 are respectively abutted against the first side of the first limiting block 225 and the second side of the second limiting block 226, the steering engine 210 drives the valve core body 231 to rotate so that the clamping posts 233 rotate until the two clamping posts 233 are respectively abutted against the second side of the first limiting block 225 and the first side of the second limiting block 226, and at this time, the area of the adjusting air port 207 on the chassis 223 is in the fully closed state, so that gas cannot pass. By limiting the rotation range of the valve core body 231, the rotation range of the valve core body 231 driving the rotation chuck 232 is limited, and the rotation chuck 232 changes the area of the valve core body 231 covering the air port 207 by rotating clockwise and counterclockwise in the limited rotation range, so that the pressure is adjusted.
Referring to fig. 1, a first two-way valve 310 is communicated between the steering engine adjusting valve 200 and the pipeline of the positive pressure source interface 101, a second two-way valve 320 is communicated between the steering engine adjusting valve 200 and the pipeline of the negative pressure source interface 102, a first pilot valve 311 is communicated between the first two-way valve 310 and the pipeline of the positive pressure source interface 101, and a second pilot valve 321 is communicated between the second two-way valve 320 and the pipeline of the positive pressure source interface 101. Specifically, the positive pressure path and the negative pressure path are connected in parallel to the steering engine regulating valve 200, the first pilot valve 311 is communicated with an external positive pressure source for controlling the on-off of the first two-way valve 310, and the second pilot valve 321 is communicated with the external positive pressure source for controlling the on-off of the second two-way valve 320. When the battery electrolyte is required to be vacuumized and sucked out, the first two-way valve 310 is closed to close the positive pressure passage, the second two-way valve 320 is opened to open the negative pressure passage, the positive pressure is prevented from interfering with the negative pressure, and the air pressure can be regulated through the steering engine regulating valve 200; when the electrolyte is required to be put back into the battery liquid injection port by breaking the vacuum, the first two-way valve 310 is opened to open the positive pressure passage, the second two-way valve 320 is closed to close the negative pressure passage, the negative pressure is prevented from interfering with the positive pressure, and the air pressure can be adjusted through the steering engine adjusting valve 200. Further, a triple piece 1000 is further arranged between the positive pressure source interface 101 and the pipeline of the first two-way valve 310, and the triple piece 1000 is used for purifying, filtering and decompressing the air source to supply rated air source pressure.
Referring to fig. 1, a PCB 500 is mounted on the box 100, a first pressure digital display meter 420 and a second pressure digital display meter 410 are connected to a pipeline between the steering engine adjusting valve 200 and the vacuumizing interface 103, a range of air pressure detected by the first pressure digital display meter 420 is smaller than that of the second pressure digital display meter 410, an electromagnetic valve 430 is disposed between the first pressure digital display meter 420 and the pipeline of the steering engine adjusting valve 200, and the PCB 500 is in signal connection with the first pressure digital display meter 420, the second pressure digital display meter 410, the steering engine 210 and the electromagnetic valve 430. For example: the detection range of the first pressure digital display meter 420 is-100 KPa to 100KPa, and is mainly used for detecting the negative pressure, and the detection range of the second pressure digital display meter 410 is-100 KPa to 1MPa, and is mainly used for detecting the positive pressure. The PCB 500 can control the rotation angle of the output shaft of the steering engine 210 through the air pressure detected by the first pressure digital display meter 420 and the second pressure digital display meter 410 respectively, and then the area of the adjusting valve core 230 covering the adjusting air port 207 is adjusted, so that different air pressure adjustment can be realized. When the external positive pressure source breaks vacuum, the second pressure digital display meter 410 detects the pressure value of the pipeline, the PCB 500 controls the electromagnetic valve 430 to be closed, the pipeline of the first pressure digital display meter 420 is disconnected, damage to the first pressure digital display meter 420 is prevented, and the first pressure digital display meter 420 is protected.
Referring to fig. 11 to 12, the present invention further provides a negative battery formation pressure system, which includes a negative battery formation pressure control box and a battery formation device, wherein the battery formation device includes a screw 600, a plurality of buffer containers 700 and a plurality of suction nozzles 800, the screw 600 is communicated with the plurality of buffer containers 700, the plurality of buffer containers 700 are communicated with the plurality of suction nozzles 800 one to one, the suction nozzles 800 are used for communicating with a liquid filling port of a battery, and the screw 600 is communicated with the vacuumizing interface 103. The negative pressure source interface 102 at the battery formation negative pressure control box is vacuumized, and the internal passage of the screw 600 can be vacuumized by adjusting the gas flow through the steering engine adjusting valve 200, so that battery electrolyte flows out from the liquid injection port into the buffer container 700; when the electrolyte is required to be replaced into the battery liquid injection port, the positive pressure source interface 101 at the battery formation negative pressure control box starts to break vacuum, and the internal passage of the screw 600 can be broken vacuum by adjusting the gas flow through the steering engine adjusting valve 200, so that the battery electrolyte flows out of the buffer container 700 into the battery liquid injection port. The specific structure of the battery formation negative pressure control box refers to the above embodiments, and since the battery formation negative pressure system adopts all the technical solutions of all the embodiments, the battery formation negative pressure control box has at least all the beneficial effects brought by the technical solutions of the embodiments, and will not be described in detail herein.
With continued reference to fig. 11 to 12, a gas-liquid separator 900 is connected between the steering engine adjusting valve 200 and the pipeline of the screw 600, and a liquid outlet of the gas-liquid separator 900 is sequentially connected with a first switch valve 910, a liquid draining container 930 and a second switch valve 920. Specifically, the drain container 930 is used for storing or discharging liquid electrolyte, the first switch valve 910 is used for controlling the on-off state between the inlet of the drain container 930 and the gas-liquid separator 900, and the second switch valve 920 is used for controlling the on-off state of the outlet of the drain container 930. When the vacuum pumping is performed, the first switch valve 910 is opened, the gas-liquid separator 900 separates liquid electrolyte into the liquid discharge container 930, the second switch valve 920 is opened after the liquid discharge container 930 is closed, and the liquid electrolyte is discharged, so that corrosion of the electrolyte to the internal pipelines of the box body 100 is prevented, and other parts are corroded.
The foregoing description is only of the optional embodiments of the present invention, and is not intended to limit the scope of the invention, and all the equivalent structural changes made by the description of the present invention and the accompanying drawings or the direct/indirect application in other related technical fields are included in the scope of the invention.
Claims (10)
1. A battery formation negative pressure control box, characterized by comprising:
the box body is provided with a positive pressure source interface, a negative pressure source interface and a vacuumizing interface;
the steering engine regulating valve comprises a steering engine, a valve body and a valve core, wherein the valve body is arranged on the box body, the valve body is provided with a gas channel, the valve core penetrates through the valve body and is partially arranged in the gas channel, the gas channel is provided with a first gas port and a second gas port, the first gas port is communicated with the positive pressure source interface and the negative pressure source interface, and the second gas port is communicated with the vacuumizing interface;
the gas channel is provided with an adjusting gas port between the first gas port and the second gas port, and the steering engine is in driving connection with the valve core so as to adjust the area of the valve core covering the adjusting gas port, so that the gas flow of the gas channel can be adjusted.
2. The battery formation negative pressure control box according to claim 1, wherein the valve body comprises an outer valve body and an inner valve body, the outer valve body is mounted on the box body, a first air cavity, a second air cavity, a third air cavity and a fourth air cavity are arranged in the outer valve body, the first air cavity is provided with the first air port, and the fourth air cavity is provided with the second air port;
the internal valve body is arranged in the third air cavity, an adjusting air cavity is arranged in the internal valve body, the adjusting air cavity is provided with a first air hole, a second air hole and an adjusting air hole arranged between the first air hole and the second air hole, the second air cavity is communicated with the first air cavity and the second air hole, the third air cavity is communicated with the first air hole and the fourth air cavity, and the valve core penetrates through the internal valve body and is partially arranged in the adjusting air cavity.
3. The battery formation negative pressure control box according to claim 2, wherein the valve core comprises a valve core body and a rotary chuck, an output shaft of the steering engine is connected with the valve core body through a steering engine disk drive, clamping columns are arranged on two opposite sides of the valve core body, clamping grooves are formed on two opposite sides of the rotary chuck, the valve core body can extend into the clamping grooves through the clamping columns to drive the rotary chuck to rotate, and the rotary chuck can adjust the area of the air adjusting port.
4. The battery formation negative pressure control box according to claim 3, wherein a sealing cover is arranged on the bottom cover of the inner valve body, a base plate is arranged between the sealing cover and the rotating chuck, the base plate is provided with the adjusting air port, the sealing cover is provided with the second air hole, two opposite sides of the base plate are provided with guide ribs, guide grooves are formed in the inner wall surface of the inner valve body, and the guide ribs are matched with the guide grooves.
5. The battery formation negative pressure control box of claim 4, wherein the spin chuck and the chassis are made of ceramic materials.
6. The battery formation negative pressure control box of claim 3, wherein two sides of the inner wall of the inner valve body are respectively provided with a first limiting block and a second limiting block which are arranged at intervals, and the first limiting block and the second limiting block are used for being abutted with the clamping column so as to limit the rotation range of the valve core.
7. The battery formation negative pressure control box according to claim 1, wherein a first two-way valve is communicated between the steering engine regulating valve and the pipeline of the positive pressure source interface, a second two-way valve is communicated between the steering engine regulating valve and the pipeline of the negative pressure source interface, a first pilot valve is communicated between the first two-way valve and the pipeline of the positive pressure source interface, and a second pilot valve is communicated between the second two-way valve and the pipeline of the positive pressure source interface.
8. The battery formation negative pressure control box according to claim 7, wherein a PCB is mounted on the box body, a first pressure digital display meter and a second pressure digital display meter are communicated on a pipeline between the steering engine regulating valve and the vacuumizing interface, the range of the detected air pressure value of the first pressure digital display meter is smaller than that of the second pressure digital display meter, an electromagnetic valve is arranged between the first pressure digital display meter and the pipeline of the steering engine regulating valve, and the PCB is in signal connection with the first pressure digital display meter, the second pressure digital display meter, the steering engine and the electromagnetic valve.
9. A battery formation negative pressure system, characterized by comprising the battery formation negative pressure control box according to any one of claims 1 to 8;
the battery formation negative pressure system further comprises battery formation equipment, the battery formation equipment comprises a screw rod, a plurality of buffer containers and a plurality of suction nozzles, the screw rod is communicated with the buffer containers, the buffer containers are communicated with the suction nozzles one to one, the suction nozzles are used for being communicated with a liquid injection port of a battery, and the screw rod is communicated with the vacuumizing interface.
10. The battery formation negative pressure system of claim 9, wherein a gas-liquid separator is communicated between the steering engine regulating valve and the pipeline of the screw, and a liquid outlet of the gas-liquid separator is sequentially communicated with a first switch valve, a liquid draining container and a second switch valve.
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| CN202311143757.1A CN116906608B (en) | 2023-09-06 | 2023-09-06 | Battery formation negative pressure control box and battery formation negative pressure system |
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| CN202311143757.1A CN116906608B (en) | 2023-09-06 | 2023-09-06 | Battery formation negative pressure control box and battery formation negative pressure system |
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| CN116906608B (en) | 2023-12-12 |
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