CN112880312A - Vacuum tunnel furnace for removing water from battery cell by heating or cooling based on liquid bath method - Google Patents

Vacuum tunnel furnace for removing water from battery cell by heating or cooling based on liquid bath method Download PDF

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Publication number
CN112880312A
CN112880312A CN202110109241.XA CN202110109241A CN112880312A CN 112880312 A CN112880312 A CN 112880312A CN 202110109241 A CN202110109241 A CN 202110109241A CN 112880312 A CN112880312 A CN 112880312A
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vacuum
bin
heat exchange
heating
battery cell
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何莉
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26DRYING
    • F26BDRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B5/00Drying solid materials or objects by processes not involving the application of heat
    • F26B5/04Drying solid materials or objects by processes not involving the application of heat by evaporation or sublimation of moisture under reduced pressure, e.g. in a vacuum
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26DRYING
    • F26BDRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B23/00Heating arrangements
    • F26B23/10Heating arrangements using tubes or passages containing heated fluids, e.g. acting as radiative elements; Closed-loop systems
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26DRYING
    • F26BDRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B25/00Details of general application not covered by group F26B21/00 or F26B23/00
    • F26B25/001Handling, e.g. loading or unloading arrangements
    • F26B25/003Handling, e.g. loading or unloading arrangements for articles
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26DRYING
    • F26BDRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B25/00Details of general application not covered by group F26B21/00 or F26B23/00
    • F26B25/06Chambers, containers, or receptacles
    • F26B25/14Chambers, containers, receptacles of simple construction
    • F26B25/18Chambers, containers, receptacles of simple construction mainly open, e.g. dish, tray, pan, rack
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26DRYING
    • F26BDRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B9/00Machines or apparatus for drying solid materials or objects at rest or with only local agitation; Domestic airing cupboards
    • F26B9/06Machines or apparatus for drying solid materials or objects at rest or with only local agitation; Domestic airing cupboards in stationary drums or chambers
    • F26B9/066Machines or apparatus for drying solid materials or objects at rest or with only local agitation; Domestic airing cupboards in stationary drums or chambers the products to be dried being disposed on one or more containers, which may have at least partly gas-previous walls, e.g. trays or shelves in a stack
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00Secondary cells; Manufacture thereof
    • H01M10/04Construction or manufacture in general
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M6/00Primary cells; Manufacture thereof
    • H01M6/005Devices for making primary cells
    • 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
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/50Manufacturing or production processes characterised by the final manufactured product

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Electrochemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Molecular Biology (AREA)
  • Combustion & Propulsion (AREA)
  • Sustainable Development (AREA)
  • Drying Of Solid Materials (AREA)

Abstract

The invention relates to a vacuum tunnel furnace for removing water from a battery cell by heating or cooling based on a liquid bath method, which comprises a vacuum bin, wherein a material rack for placing a clamp is arranged in the vacuum bin, the material rack is provided with a plurality of heat exchange plates, and the heat exchange plates are connected with a liquid heater or a liquid refrigerator through pipelines and used for removing water from the battery cell arranged above the heat exchange plates in a heating or cooling mode; the vacuum bin is internally provided with a carrying device, the material rack and the plurality of heat exchange plates form a warehouse type fixed point water removal mechanism positioned in the vacuum bin, and the battery core is heated or cooled in the vacuum bin for a fixed point and a fixed time through the warehouse type fixed point water removal mechanism. According to the invention, the battery cell is directly heated or cooled in a contact manner by a liquid bath method in a vacuum environment, so that the energy consumption is reduced, the battery cell is prevented from being remoistened, the water removal time of the battery cell is short, the consistency is high, the material rack is provided with a plurality of layers of water removal bins, the automatic material placement is realized through the carrying device, the storage type flow-drawing operation of automatic feeding and discharging and automatic material placement is realized, and the floor area is reduced.

Description

Vacuum tunnel furnace for removing water from battery cell by heating or cooling based on liquid bath method
Technical Field
The invention relates to the technical field of battery cell production, in particular to a vacuum tunnel furnace for removing water from a battery cell by heating or cooling based on a liquid bath method.
Background
In the production process of the soft-package battery core, the soft-package battery core needs to be dewatered for controlling the water content of the soft-package battery core. The invention discloses a tunnel furnace dewatering device for recycling a material vehicle and a production process thereof, wherein the material vehicle is used for loading multiple layers of electric cores, automatic loading and unloading of the multiple layers of electric cores are difficult to load by the material vehicle, and the electric cores are heated in a preheating cavity and a vacuum cavity in a hot air heating mode, so that the electric cores inside and outside the material vehicle cannot be uniformly heated, the temperature is inconsistent, the dewatering time of the electric cores is too long, air cooling is adopted during cooling, the electric cores are easy to remoisten, the dewatering effect of the electric cores is not ideal, and the energy consumption is high.
Disclosure of Invention
In order to solve the defects of the prior art, the invention provides a vacuum tunnel furnace for removing water from a battery core by heating or cooling based on a liquid bath method. The invention can be applied to the working procedures of lithium cells, sodium cells, lithium-sulfur cells, aluminum cells, super capacitors and the like which need to control the environmental temperature.
In order to achieve the purpose, the technical scheme provided by the invention is as follows: the vacuum tunnel furnace for removing water from the battery cell based on liquid bath heating or cooling comprises a vacuum bin, wherein the vacuum bin is used for providing a negative pressure vacuum environment to extract water vapor formed after water in the battery cell is heated, the battery cell is loaded in a tray for flowing and pulling, a material rack used for placing a clamp loaded with the tray is arranged in the vacuum bin, the material rack is provided with a plurality of heat exchange plates, and the heat exchange plates are connected with a liquid heater or a liquid refrigerator through pipelines and used for removing water from the battery cell placed above the material rack in a heating or cooling mode; the battery cell fixed-point dewatering device is characterized in that a carrying device for conveying the battery cell between a vacuum bin feed port, a heat exchange plate on a material rack and a vacuum bin discharge port is arranged in the vacuum bin, the carrying device, the material rack and the plurality of heat exchange plates form a storage type fixed-point dewatering mechanism located in the vacuum bin, and the battery cell completes long fixed-point heating or cooling in the vacuum bin through the storage type fixed-point dewatering mechanism.
In the technical scheme, the clamp is provided with the through groove with the hollow bottom for placing the tray, the outer wall of the tray is provided with the stop block, the inner wall of the through groove is provided with the positioning block which is contacted with the positioning block to lift the tray when the clamp and the tray are carried, in the process of removing water from the battery core, the clamp is erected on the material rack and is suspended above a heat exchange plate and is not contacted with the heat exchange plate, and the heat exchange plate is contacted with the bottom of the tray.
In the technical scheme, a plurality of layers of water removal bins are vertically arranged on the material rack, a plurality of heat exchange plates are arranged in each layer of water removal bin side by side, the carrying device comprises a vertical feeding assembly, a plurality of transverse carrying assemblies and a vertical blanking assembly, the plurality of transverse carrying assemblies are respectively arranged in the corresponding layer of water removal bin, and the vertical feeding assembly and the vertical blanking assembly are respectively arranged on the feeding port side and the discharging port side of the material rack; the fixture at the feed inlet is lifted to the height of one layer of the water removal bin of the material frame through the vertical feeding assembly and is transferred to one heat exchange plate of the layer of the water removal bin through the transverse transfer assembly of the layer to complete fixed-point transfer, and the fixture after water removal is transferred to the vertical blanking assembly through the transverse transfer assembly and is transferred to the feed inlet through the vertical blanking assembly.
In the technical scheme, the transverse carrying assembly comprises a moving seat, a supporting plate for supporting the clamp, a guide rail laid along the material rack and a rack, wherein the supporting plate is arranged on the moving seat in a lifting manner, and a transverse moving motor for driving the moving seat to move along the guide rail through a transverse lead screw is arranged on the moving seat; and the movable seat is provided with a lifting motor which drives the supporting plate to lift through a lifting screw rod.
In the technical scheme, the vertical feeding assembly and the vertical discharging assembly respectively comprise stand columns, vertical screw rods, driving motors and top plates cooperating with the clamps, the two stand columns are symmetrically arranged on the outer side of the material rack, and the driving motors drive the top plates to move up and down along the stand columns through the vertical screw rods arranged along the stand columns.
In the technical scheme, the feed inlet and the discharge outlet of the vacuum bin are both provided with a transition bin which is used as a buffer between the vacuum bin and the external atmospheric environment to ensure the stable air pressure in the vacuum bin, and the transition bin is respectively provided with a gate valve which is opened or closed by translation on the side of the vacuum bin and the side of the external atmospheric environment.
In the technical scheme, the feed inlet in vacuum storehouse, the discharge gate outside are provided with material loading station and unloading station respectively, be provided with the anchor clamps backward flow transportation line that is used for the anchor clamps circulation between the material loading station in the vacuum storehouse outside and the unloading station, anchor clamps load the tray through a manipulator and lift the tray off through another manipulator at the unloading station at the material loading station, anchor clamps remove through handling device in the vacuum storehouse, the material loading station pushes away anchor clamps into feed inlet transition bin through a straight line cylinder, the anchor clamps in the discharge gate transition bin are pulled out through another straight line cylinder to the unloading station.
In the technical scheme, the feeding directions of the clamp to the feed inlet transition bin and the vacuum bin at the feeding station are perpendicular or parallel to the length direction of the clamp.
In the technical scheme, the vacuum bin and the transition bin are connected with the corresponding vacuum system control valve and the vacuum pump through pipelines.
In the technical scheme, the plurality of heat exchange plates are connected in series or in parallel through pipelines, and a liquid pump and a fluid control valve are arranged between the plurality of heat exchange plates and a liquid heater or a liquid refrigerator or a freezing water pipeline of a factory building.
The invention has the advantages that the structure is reasonable, the design is novel, the practicability is strong, and the storage type fixed point dewatering mechanism is adopted to heat or cool the battery cell for fixed point and fixed time in the vacuum bin so as to remove the water in the battery cell; through direct electric core contact heating or cooling of liquid bath method under vacuum environment, reduce the energy consumption, electric core heating or cooling are even, can prevent effectively that electric core from dampening, the time of electric core dewatering is short, the uniformity is high, the work or material rest sets up five layers and removes the sump, set up eight heat exchange plates side by side in every layer removes the sump, realize automatic putting the material through handling device, realize unloading automatically, the warehouse formula of automatic pendulum material flows and draws the operation, reduce area.
Drawings
Fig. 1 is a schematic perspective view of the present invention.
Fig. 2 is a schematic view of a liquid water path connection structure of the heat exchange plate.
Fig. 3 is a schematic structural view of a plane of the stack.
Fig. 4 is a schematic structural view of a pallet and a jig.
Fig. 5 is a perspective view of the tray and clip placed on the heat exchange plate.
Fig. 6 is a schematic view of a vacuum line structure.
Fig. 7 is a schematic perspective view of the stack.
Fig. 8 is an enlarged view of a portion a of fig. 7.
In the figure: 1. vacuum bin, 11, feed inlet, 12, discharge outlet, 13, material rack, 14, vacuum pump, 15, rack, 2, feeding station, 21, blanking station, 22, three-axis manipulator, 3, backflow conveying line, 31, rotary table, 4, transition bin, 51, first gate valve, 52, second gate valve, 53, third gate valve, 54, fourth gate valve, 6, clamp, 61, through slot, 62, stopper, 7, tray, 71, positioning block, 8, heat exchange plate, 81, fluid control valve, 82, liquid pump, 83, liquid heater, 84, liquid refrigerator, 91, vertical feeding assembly, 92, vertical blanking assembly, 93, column, 94, top plate, 95, driving motor, 96, horizontal carrying assembly, 97, moving seat, 98, horizontal moving motor, 99, supporting plate, 991, lifting motor, 10, electric core.
Detailed Description
Embodiments of the present invention will be described with reference to the accompanying drawings.
As shown in fig. 1 to 8, a vacuum tunnel furnace for removing water from battery cells based on liquid bath heating or cooling includes a vacuum chamber 1, the vacuum chamber 1 is used for providing a negative pressure vacuum environment to extract water vapor formed after water inside the battery cells 10 is heated, the battery cells 10 are loaded in a tray 7 for flow drawing, a rack 13 for placing a clamp loaded with the tray is arranged in the vacuum chamber 1, the rack 13 is provided with a plurality of heat exchange plates 8, the heat exchange plates 8 are connected with a liquid heater 83 or a liquid refrigerator 84 through pipelines and remove water from the battery cells 10 placed above in a heating or cooling manner; the vacuum bin 1 is internally provided with a carrying device for conveying the battery cell 10 between a feeding hole 11 of the vacuum bin 1, a heat exchange plate 8 on a material rack 13 and a discharging hole 12 of the vacuum bin 1, the carrying device, the material rack 13 and the plurality of heat exchange plates 8 form a bin storage type fixed point water removal mechanism positioned in the vacuum bin 1, and the battery cell 10 is heated or cooled in a fixed point and fixed time period in the vacuum bin 1 through the bin storage type fixed point water removal mechanism.
The feed inlet 11 and the discharge gate 12 of vacuum chamber 1 all are provided with and buffer in order to guarantee the stable transition storehouse 4 of the interior atmospheric pressure of vacuum chamber 1 between vacuum chamber 1 and the outside atmospheric environment as, and transition storehouse 4 is provided with the push-pull valve that opens or close through the translation respectively in vacuum chamber 1 side and outside atmospheric environment side. The gate valve at the outside atmospheric environment side of the feed inlet 11 transition bin 4 is a first gate valve 51, the gate valve at the vacuum bin 1 side of the feed inlet 11 transition bin 4 is a second gate valve 52, the gate valve at the vacuum bin 1 side of the discharge outlet 12 transition bin 4 is a third gate valve 53, and the gate valve at the outside atmospheric environment side of the discharge outlet 12 transition bin 4 is a fourth gate valve 54.
The feeding port 11 and the discharge port 12 of the vacuum bin 1 are respectively provided with a feeding station 2 and a discharging station 21 on the outer sides, a fixture 6 backflow conveying line 3 for circulation of fixtures 6 is arranged between the feeding station 2 and the discharging station 21 on the outer side of the vacuum bin 1, the fixtures 6 load a tray 7 through a three-axis manipulator 22 on the feeding station 2 and unload the tray 7 through another three-axis manipulator 22 on the discharging station 21, the fixtures 6 move in the vacuum bin 1 through a carrying device, the fixtures 6 are pushed into the feeding port 11 transition bin 4 through a linear cylinder on the feeding station 2, and the fixtures 6 in the discharge port 12 transition bin 4 are pulled out through another linear cylinder on the discharging station 21.
Anchor clamps 6 are provided with the logical groove 61 that is used for placing tray 7 of bottom fretwork, and tray 7 outer wall is provided with dog 62, and logical groove 61 inner wall is provided with the locating piece 71 that contacts with locating piece 71 in order to lift tray 7 when carrying anchor clamps 6 and tray 7, and at electric core 10 dewatering in-process, anchor clamps 6 erect on work or material rest 13 and hang above a heat exchange plate 8 and not contact with this heat exchange plate 8, heat exchange plate 8 and tray 7 bottom contact.
When placing tray 7 and anchor clamps 6 on heat exchange plate 8, logical groove 61 through the bottom fretwork can make 7 bottoms of tray and 8 contacts of heat exchange plate, anchor clamps 6 suspend under the effect of gravity with 7 separation of tray and the lifting of work or material rest 13, make anchor clamps 6 reduce the contact with tray 7, guarantee simultaneously that anchor clamps 6 are unsettled not to contact with heat exchange plate 8, heat exchange plate 8 only can heat or cool off for electric core 10 on 7 of tray 7 and the tray during heating or cooling, anchor clamps 6 can not heated by direct contact, avoid calorific loss.
A plurality of layers of water removal bins are vertically arranged on the material rack 13, a plurality of heat exchange plates 8 are arranged in each layer of water removal bin side by side, the carrying device comprises a vertical feeding assembly 91, a plurality of transverse carrying assemblies 96 and a vertical blanking assembly 92, the plurality of transverse carrying assemblies 96 are respectively arranged in the corresponding layer of water removal bin, and the vertical feeding assembly 91 and the vertical blanking assembly 92 are respectively arranged on the feeding port 11 side and the discharging port 12 side of the material rack 13; the clamp 6 at the feed port 11 is lifted to the height of one layer of the dewatering bin of the stack 13 through the vertical feeding assembly 91 and is transferred to one of the heat exchange plates 8 of the layer of the dewatering bin through the horizontal transfer assembly 96 of the layer to complete fixed-point transfer, and the clamp 6 after dewatering is transferred to the vertical blanking assembly 92 through the horizontal transfer assembly 96 and is transferred to the blanking port through the vertical blanking assembly 92.
Adopt storage formula fixed point dewatering mechanism will load anchor clamps 6 of six trays 7 and carry to a heat exchange board 8 (fixed point), electric core 10 needs to reach fixed heating or cooling time (length of deciding time) and carry again on this heat exchange board 8, at fixed local direct contact heating, the efficiency of effectual improvement heat transfer, thereby it is long when reducing the heating, and reduce the energy consumption, this transmission that electric core 10 need last not to stop in being different from traditional tunnel furnace, thereby the heat can not in time supply the efficiency that reduces heat transfer, lead to the drawback that heating time overlength has.
Work or material rest 13 sets up five layers and removes the sump, sets up eight heat exchange plates 8 side by side in every layer removes the sump, realizes automatic putting the material through handling device, realizes that the automatic storage formula of going up unloading, automatic pendulum material draws the operation, satisfies the first-in first-out principle, simultaneously can the effectual area that reduces vacuum chamber 1. The first four heat exchange plates 8 of each layer of the dewatering bin are used for heating, the last four heat exchange plates 8 are used for heating and cooling, or the heat exchange plates 8 of each layer of the dewatering bin are used for heating and the heat exchange plates 8 for cooling are arranged in a staggered mode in sequence.
The transverse carrying assembly 96 comprises a moving seat 97, a supporting plate 99 for lifting the fixture 6, a guide rail and a rack 15 laid along the material rack 13, the supporting plate 99 is arranged on the moving seat 97 in a lifting manner, a transverse moving motor 98 for driving the moving seat 97 to move along the guide rail through a transverse screw rod or a gear and rack 15 is arranged on the moving seat 97, the two transmission modes of the transverse screw rod, the gear and the rack are used for enabling the moving seat to move accurately, and the drawing of the embodiment adopts the gear and the rack 15 for description; when a transverse screw rod is adopted, the transverse moving motor 98 directly drives a screw rod nut sleeve on the transverse screw rod to rotate so as to drive the moving seat to move, of course, the transverse moving motor 98 can be arranged on the material rack to drive the transverse screw rod to rotate, and the moving seat is connected with the screw rod nut sleeve so as to drive the moving seat to move; the movable base 97 is provided with a lifting motor 991 which drives the supporting plate 99 to lift through a lifting screw rod.
Perpendicular material loading subassembly 91, perpendicular unloading subassembly 92 all include stand 93, perpendicular lead screw, driving motor 95 and with the roof 94 of anchor clamps 6 cooperation, two stand 93 symmetries set up in the work or material rest 13 outsides, driving motor 95 drives roof 94 through the perpendicular lead screw that sets up along stand 93 and reciprocates along stand 93.
The feeding direction of the clamp 6 from the feeding station 2 to the feeding port 11 transition bin 4 and the vacuum bin 1 is vertical to the length direction of the clamp 6.
A liquid pump 82 and a fluid control valve 81 are provided between the plurality of heat exchange plates 8 and the liquid heater 83 or the liquid refrigerator 84. The applicant's application No. CN201922392299.0 in 2019.12.27 discloses a liquid bath heated lithium battery dehydration high vacuum tunnel furnace, wherein if the cell 10 is heated and cooled by a liquid bath method under a vacuum environment, the heat exchange plate 8 in the present invention is similar to the exchanger layer of the application, so as to realize the liquid bath method and the heating and cooling of the cell 10. The liquid heater 83 heats the liquid, the liquid refrigerator 84 cools the liquid, and the liquid pump 82 circulates the liquid, completing the heating and cooling under high vacuum conditions. In the same vacuum environment, inside moisture evaporation after the electricity core heating is taken out, makes the temperature of electricity core reduce through the cooling, prevents to regain moisture.
The heat exchange plate 8 heats or cools the tray 7 and the battery cell 10 in the vacuum chamber 1 by direct contact through a liquid bath method, and can heat and cool the battery cell 10 under the same high vacuum condition, which is not possessed by the traditional tunnel furnace, and the traditional tunnel furnace is not heated or heated by a hot air type or radiation, so that the heat efficiency is low.
The vacuum chamber 1 and the transition chamber 4 are connected with a corresponding vacuum system control valve and a vacuum pump 14 through pipelines, so that the switching between vacuum and pressure relief is realized.
The working process of the invention is as follows: the tray 7 loaded with the battery cell 10 is conveyed to the feeding station 2 from the conveyor belt, the tray 7 is conveyed to the clamp 6 by the three-axis mechanical manipulator of the feeding station 2, the second gate valve 52 is closed, the pressure of the feeding port 11 transition bin 4 is relieved to be equal to the external atmospheric pressure, the first gate valve 51 is opened, the clamp 6 filled with six tray 7 enters the feeding port 11 transition bin 4 under the pushing of the linear cylinder, the first gate valve 51 is closed and then is opposite, the feeding port 11 transition bin 4 is vacuumized to be basically the same as the air pressure of the vacuum bin 1, the second gate valve 52 is opened, the clamp 6 enters the vertical feeding component 91 of the feeding port 11 of the vacuum bin 1 under the pushing of the other linear cylinder, and the second gate valve 52 is closed. The vertical feeding assembly 91 lifts the clamp 6, the clamp is conveyed to the height of one layer of the dewatering bin, the layer of the horizontal conveying assembly 96 is connected and conveyed to one heat exchange plate 8 used for heating on the layer, the layer of the heat exchange plate 8 used for cooling is conveyed after heating is completed, the clamp 6 is conveyed to the discharge port 12 through the horizontal conveying assembly 96 and the vertical blanking assembly 92 after cooling is completed, the transition bin 4 of the discharge port 12 is vacuumized, the third gate valve 53 is opened, the clamp 6 enters the discharge transition bin 4 under the pushing of the linear cylinder, the third gate valve 53 is closed, the transition bin 4 of the discharge port 12 is decompressed, the fourth gate valve 54 is opened, the clamp 6 reaches the blanking station 21 under the pushing of the linear cylinder, the fourth gate valve 54 is closed, the three-axis manipulator 22 of the blanking station 21 unloads the tray 7 from the clamp 6 to the conveying belt, blanking is completed, the empty clamp 6 flows back to the feeding station 2 through the clamp 6 backflow conveying line 3. Wherein the fixture 6 reflow transport line 3 is shaped like Contraband, and in order to facilitate the reflow of the fixture 6 and reduce the occupied area, a turntable 31 for horizontally rotating the fixture 6 by 90 degrees is arranged at the vertical node of the fixture 6 reflow transport line 3.
The invention has reasonable structure, novel design and strong practicability, and adopts a storage type fixed point dewatering mechanism to heat or cool the battery cell 10 in the vacuum bin 1 for a fixed point and a fixed time so as to remove the water in the battery cell 10; through direct contact heating or cooling to electric core 10 of liquid bath method under vacuum environment, reduce the energy consumption, electric core 10 heating or cooling are even, can prevent effectively that electric core 10 from dampening, the time of electric core 10 dewatering is short, the uniformity is high, work or material rest 13 sets up five layers and removes the sump, set up eight heat exchange plates 8 in every layer of removing the sump side by side, realize automatic putting the material through handling device, realize automatic unloading, the warehouse style of automatic pendulum material flows and draws the operation, reduce area.
The technical scope of the present invention is not limited to the above embodiments, and any modifications, equivalent variations and modifications made to the above embodiments according to the technical spirit of the present invention still fall within the technical scope of the present invention.

Claims (10)

1. The vacuum tunnel furnace for removing water from the battery cell based on liquid bath heating or cooling comprises a vacuum bin, wherein the vacuum bin is used for providing a negative pressure vacuum environment to extract water vapor formed after water in the battery cell is heated, and the battery cell is loaded in a tray for flow drawing; the battery cell fixed-point dewatering device is characterized in that a carrying device for conveying the battery cell between a vacuum bin feed port, a heat exchange plate on a material rack and a vacuum bin discharge port is arranged in the vacuum bin, the carrying device, the material rack and the plurality of heat exchange plates form a storage type fixed-point dewatering mechanism located in the vacuum bin, and the battery cell completes long fixed-point heating or cooling in the vacuum bin through the storage type fixed-point dewatering mechanism.
2. The liquid bath based heating or cooling vacuum tunnel oven for cell dewatering according to claim 1, wherein the fixture is provided with a hollow-bottomed channel for placing a tray, the outer wall of the tray is provided with a stopper, the inner wall of the channel is provided with a positioning block which contacts with the positioning block to lift the tray when the fixture and the tray are carried, the fixture is erected on the rack and suspended above a heat exchange plate without contacting with the heat exchange plate during cell dewatering, and the heat exchange plate contacts with the bottom of the tray.
3. The vacuum tunnel furnace for dehydrating battery cells based on liquid bath heating or cooling according to claim 1, wherein a plurality of water removing bins are vertically arranged on the rack, a plurality of heat exchange plates are arranged in parallel on each water removing bin, the conveying device comprises a vertical feeding assembly, a plurality of transverse conveying assemblies and a vertical blanking assembly, the plurality of transverse conveying assemblies are respectively arranged in the corresponding water removing bins, and the vertical feeding assembly and the vertical blanking assembly are respectively arranged on the feeding port side and the discharging port side of the rack; the fixture at the feed inlet is lifted to the height of one layer of the water removal bin of the material frame through the vertical feeding assembly and is transferred to one heat exchange plate of the layer of the water removal bin through the transverse transfer assembly of the layer to complete fixed-point transfer, and the fixture after water removal is transferred to the vertical blanking assembly through the transverse transfer assembly and is transferred to the feed inlet through the vertical blanking assembly.
4. The vacuum tunnel furnace for removing water from the battery cell through heating or cooling based on the liquid bath method according to claim 3, wherein the transverse carrying assembly comprises a moving seat, a supporting plate for supporting the fixture, a guide rail laid along the material rack and a rack, the supporting plate is arranged on the moving seat in a lifting manner, and a transverse moving motor for driving the moving seat to move along the guide rail through a transverse lead screw is arranged on the moving seat; and the movable seat is provided with a lifting motor which drives the supporting plate to lift through a lifting screw rod.
5. The vacuum tunnel furnace for removing water from battery cells through liquid bath heating or cooling according to claim 4, wherein the vertical feeding assembly and the vertical discharging assembly each comprise a vertical column, a vertical screw rod, a driving motor and a top plate cooperating with the clamp, the two vertical columns are symmetrically arranged outside the material frame, and the driving motor drives the top plate to move up and down along the vertical columns through the vertical screw rods arranged along the vertical columns.
6. The vacuum tunnel furnace for removing water from battery cells through heating or cooling based on the liquid bath method according to claim 1, wherein a feed inlet and a discharge outlet of the vacuum chamber are provided with transition chambers for buffering between the vacuum chamber and an external atmospheric environment to ensure stable air pressure in the vacuum chamber, and the transition chambers are respectively provided with gate valves which are opened or closed through translation on the vacuum chamber side and the external atmospheric environment side.
7. The vacuum tunnel furnace for removing water from the battery cell through heating or cooling based on the liquid bath method according to claim 6, wherein a feeding station and a discharging station are respectively arranged on the outer sides of the feeding port and the discharging port of the vacuum chamber, a fixture backflow conveying line for fixture circulation is arranged between the feeding station and the discharging station on the outer side of the vacuum chamber, a tray is loaded on the feeding station through a manipulator and unloaded on the discharging station through another manipulator, the fixture moves in the vacuum chamber through a carrying device, the fixture is pushed into the feeding port transition chamber through a linear cylinder by the feeding station, and the fixture in the discharging port transition chamber is pulled out by the discharging station through another linear cylinder.
8. The vacuum tunnel furnace for dehydrating battery cells through heating or cooling based on the liquid bath method according to claim 7, wherein the feeding direction of the fixture to the feed inlet transition bin and the vacuum bin at the feeding station is perpendicular to or parallel to the length direction of the fixture.
9. The vacuum tunnel furnace for removing water from battery cells through heating or cooling based on the liquid bath method according to claim 8, wherein the vacuum chamber and the transition chamber are connected with a corresponding vacuum system control valve and a corresponding vacuum pump through pipelines.
10. The vacuum tunnel furnace for heating or cooling to remove water from battery cells based on the liquid bath method according to claim 1, wherein a plurality of heat exchange plates are connected in series or in parallel through a pipeline, and a liquid pump and a fluid control valve are arranged between the plurality of heat exchange plates and a liquid heater or a liquid refrigerator or a freezing water pipeline of a factory building.
CN202110109241.XA 2021-01-27 2021-01-27 Vacuum tunnel furnace for removing water from battery cell by heating or cooling based on liquid bath method Pending CN112880312A (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20030091645A (en) * 2002-11-15 2003-12-03 김태원 A tray and dry unit with vacuum using this 0ne
CN104167377A (en) * 2013-05-20 2014-11-26 北京北方微电子基地设备工艺研究中心有限责任公司 Pallet cooling device and method, accommodation cavity and semiconductor device
CN210084408U (en) * 2019-06-11 2020-02-18 苏州杰锐思自动化设备有限公司 Tray lifter
CN110966853A (en) * 2019-12-27 2020-04-07 国兴(东莞)新能源科技有限公司 Lithium battery dewatering high-vacuum tunnel furnace adopting liquid bath method for heating
CN112212684A (en) * 2019-07-10 2021-01-12 常州市大成真空技术有限公司 Tunnel furnace water removal device capable of recycling material vehicle and production process thereof
CN214701471U (en) * 2021-01-27 2021-11-12 何莉 Vacuum tunnel furnace for removing water from battery cell by heating or cooling based on liquid bath method

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20030091645A (en) * 2002-11-15 2003-12-03 김태원 A tray and dry unit with vacuum using this 0ne
CN104167377A (en) * 2013-05-20 2014-11-26 北京北方微电子基地设备工艺研究中心有限责任公司 Pallet cooling device and method, accommodation cavity and semiconductor device
CN210084408U (en) * 2019-06-11 2020-02-18 苏州杰锐思自动化设备有限公司 Tray lifter
CN112212684A (en) * 2019-07-10 2021-01-12 常州市大成真空技术有限公司 Tunnel furnace water removal device capable of recycling material vehicle and production process thereof
CN110966853A (en) * 2019-12-27 2020-04-07 国兴(东莞)新能源科技有限公司 Lithium battery dewatering high-vacuum tunnel furnace adopting liquid bath method for heating
CN214701471U (en) * 2021-01-27 2021-11-12 何莉 Vacuum tunnel furnace for removing water from battery cell by heating or cooling based on liquid bath method

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