CN114464824A - Cell preheating device and method for lithium battery production and processing - Google Patents
Cell preheating device and method for lithium battery production and processing Download PDFInfo
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- CN114464824A CN114464824A CN202210201713.9A CN202210201713A CN114464824A CN 114464824 A CN114464824 A CN 114464824A CN 202210201713 A CN202210201713 A CN 202210201713A CN 114464824 A CN114464824 A CN 114464824A
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M6/00—Primary cells; Manufacture thereof
- H01M6/005—Devices for making primary cells
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B13/00—Accessories or details of general applicability for machines or apparatus for cleaning
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
- B08B3/02—Cleaning by the force of jets or sprays
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D13/00—Apparatus for preheating charges; Arrangements for preheating charges
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D25/00—Devices or methods for removing incrustations, e.g. slag, metal deposits, dust; Devices or methods for preventing the adherence of slag
- F27D25/008—Devices or methods for removing incrustations, e.g. slag, metal deposits, dust; Devices or methods for preventing the adherence of slag using fluids or gases, e.g. blowers, suction units
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/058—Construction or manufacture
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- 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
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- 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
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Abstract
The invention discloses a cell preheating device and a cell preheating method for lithium battery production and processing, and relates to the technical field of lithium battery production and processing. This kind of electric core preheating device of lithium cell production and processing usefulness, including box and electric core body, electric core body includes two utmost point ears, the lateral wall of box is connected with the case lid through elevating system, and the preheating cabinet that a plurality of arrays of bottom fixedly connected with of box set up, each the notch that two symmetries set up is seted up to the lateral wall of preheating cabinet, and notch and utmost point ear phase-match, each the top of preheating cabinet is provided with sealed lid. The preheating of the electric core body is more uniform, the preheating effect is better, and meanwhile, the white powder on the surface of the electric core body is convenient to clean and collect, so that the preheating effect of the electric core body is better, the preheating quality of the electric core body is ensured, and the electric core body can be tightly pressed in the preheating process, so that the electric core body is prevented from becoming loose, and the preheating quality of the electric core body is ensured.
Description
Technical Field
The invention relates to the technical field of lithium battery production and processing, in particular to a battery cell preheating device and a preheating method for lithium battery production and processing.
Background
The electric core is required to be hot-pressed in the production and processing process of the lithium battery, and is required to be preheated before hot pressing so as to ensure the uniformity and effect of hot pressing.
However, when current electric core preheating device preheats electric core, preheat not enough evenly, influence the effect of preheating, simultaneously, preheat the in-process, cause thermal giving off extravagant easily, not enough energy-concerving and environment-protective to, electric core when preheating, its surface can produce white powder, if not clear up it, will influence the production quality of battery.
Disclosure of Invention
The invention aims to provide a cell preheating device and a cell preheating method for lithium battery production and processing, so as to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: a cell preheating device for lithium battery production and processing comprises a box body and a cell body, wherein the cell body comprises two tabs, the side wall of the box body is connected with a box cover through a lifting mechanism, the bottom of the box body is fixedly connected with a plurality of preheating boxes arranged in an array, the side wall of each preheating box is provided with two notches which are symmetrically arranged and are matched with the tabs, the top of each preheating box is provided with a sealing cover, the upper side wall of the sealing cover is fixed with the lower side wall of the box cover, the lower side wall of each sealing cover is fixedly connected with two sealing plates which are symmetrically arranged and are matched with the notches, the inner side wall of each preheating box is fixedly connected with two L-shaped plates which are symmetrically arranged, the cell body is placed on the L-shaped plate, and the lower side wall of each sealing cover is provided with a compressing mechanism for compressing the cell body, and each preheating box is internally provided with a preheating mechanism for preheating the battery cell body and a cleaning mechanism for cleaning white powder on the surface of the battery cell body.
Preferably, elevating system includes the first fixed block that two symmetries of fixed connection set up at the case lid lateral wall, and the second fixed block that two symmetries of the lateral wall fixedly connected with of box set up, one of them the lower lateral wall fixedly connected with loop bar of first fixed block, and the lateral wall cover of loop bar is equipped with the sleeve pipe, the sheathed tube other end is fixed with the last lateral wall of one of them second fixed block, and the lower lateral wall of another first fixed block rotates and is connected with first threaded rod, the lateral wall threaded connection of first threaded rod has the thread bush, and the lower extreme and another of thread bush the last lateral wall of second fixed block is fixed, one of them the first motor of last lateral wall fixedly connected with of first fixed block, and the output of first motor runs through the lower lateral wall of first fixed block and is fixed with the upper end of first threaded rod.
Preferably, hold-down mechanism is including inserting the slide bar that establishes a plurality of arrays of lateral wall and set up on each sealed lid, and the upper end of each slide bar runs through the last lateral wall of case lid and fixed cover is equipped with solid fixed ring, the last lateral wall of case lid is connected with the movable plate through a moving mechanism, and the connecting plate that a plurality of arrays of lower lateral wall fixedly connected with of movable plate set up, the connecting plate cover is established on the lateral wall of slide bar, and the lateral wall cover of each slide bar is equipped with first spring.
Preferably, first moving mechanism includes the U-shaped plate that two symmetries of fixed connection set up on the case lid lateral wall, and the lateral wall fixedly connected with second dead lever of one of them U-shaped plate, the lateral wall at the movable plate is inserted to the second dead lever, and the lower extreme of second dead lever is fixed with the last lateral wall of case lid, another the lateral wall of U-shaped plate rotates and is connected with the second threaded rod, and the lateral wall threaded connection of movable plate and second threaded rod, the lower extreme of second threaded rod rotates with the last lateral wall of case lid to be connected, one of them the last lateral wall fixedly connected with second motor of U-shaped plate, and the output of second motor run through the lower lateral wall of U-shaped plate and fixed with the upper end of second threaded rod.
Preferably, the preheating mechanism comprises a movable cover arranged in the preheating box, the movable cover is connected with the inner side wall of the preheating box through a second movable mechanism, an air inlet pipe is fixedly connected to the bottom of the movable cover, the other end of the air inlet pipe penetrates through the side wall of the preheating box, and a fan and a heating block are arranged on the side wall of the air inlet pipe.
Preferably, the second moving mechanism includes that fixed connection is at the third fixed block that two symmetries set up on two relative lateral walls of removal cover, one of them the lateral wall of third fixed block is inserted and is equipped with the third dead lever, and the both ends of third dead lever are fixed with the inside wall of preheating cabinet, another the lateral wall threaded connection of third fixed block has the third threaded rod, and the both ends of third threaded rod rotate with the inside wall of preheating cabinet and be connected, the lateral wall fixedly connected with third motor of preheating cabinet, and the output of third motor run through the inside wall of preheating cabinet and fixed with the one end of third threaded rod.
Preferably, clearance mechanism includes the outlet duct of fixed connection at the preheating cabinet lateral wall, and is provided with one-way mechanism in the outlet duct, the inlet end fixedly connected with cleaning box of intake pipe, and two relative lateral walls of cleaning box are provided with and are used for carrying out absorbent positive electrode board and negative electrode board to white powder, the fixed pipe of lateral wall fixedly connected with of cleaning box, and the bottom of cleaning box is provided with the collection mechanism that is used for collecting white powder.
Preferably, the one-way mechanism includes tapered tube and fixed disk of fixed connection in the outlet duct, and the lateral wall of fixed disk has seted up a plurality of through-holes, the lateral wall of fixed disk passes through second spring fixedly connected with ball sealer, and the ball sealer offsets with the inside wall of tapered tube.
Preferably, the collecting mechanism comprises a collecting opening formed in the bottom of the cleaning box, a collecting box is arranged at the bottom of the collecting opening, and a handle is arranged on the side wall of the collecting box.
The invention also provides a cell preheating method for lithium battery production and processing, which comprises the following steps:
s1, placing the battery cell body on an L-shaped plate in a preheating box, placing a lug in a notch, driving a box cover to move downwards through a lifting mechanism so as to seal the box body, and sealing the preheating box through a sealing cover;
s2, starting a second motor, wherein the rotation of the second motor drives a second threaded rod to rotate, so that a moving plate moves downwards along the side wall of a second fixed rod, the moving plate drives a connecting plate to move, and meanwhile, a first spring is extruded to contract, so that a plurality of sliding rods are driven to move downwards along the side wall of a sealing cover, so that the upper side wall of the cell body is pressed tightly, the cell body is prevented from becoming loose under the blowing action of hot air during preheating, and the quality of the cell body after preheating is ensured;
s3, starting a fan and a heating block, feeding air from an air inlet pipe, heating the air, preheating the cell body after the heated air passes through a movable cover, and enabling the rotating speed of the fan to be slow in the early preheating stage, and meanwhile, enabling hot air to reach the upper part of the cell body from two sides of the cell body to be preheated in all directions;
s4, starting a third motor, wherein the rotation of the third motor drives a third threaded rod to rotate, and further drives a movable cover to reciprocate along a third fixed rod, so that the cell body is preheated more uniformly and the preheating effect is better;
s5, the white powder on the surface of the battery cell body can be cleaned by hot air while preheating is carried out, the rotating speed of a fan is increased in the later stage of preheating, meanwhile, the white powder can be better cleaned by the air due to the movement of a movable cover, and after preheating is finished, the hot air can be discharged into the box body through an air outlet pipe, so that heat waste is avoided, and the energy-saving and environment-friendly effects are achieved;
s6, enabling air in the box body to enter a cleaning box through a fixing pipe and be recycled through an air inlet pipe, and electrifying the positive electrode plate and the negative electrode plate when the air enters the cleaning box so that white powder is adsorbed on the positive electrode plate and the negative electrode plate to perform electrode dust removal;
s7, when the white powder needs to be processed uniformly, the positive electrode plate and the negative electrode plate are powered off, and the white powder falls into the collecting box, so that the white powder is more convenient to clean and collect, and the preheating effect of the battery core body is better;
and S8, adjusting the pressure of the sliding rod on the cell body through the second motor, wherein in the early preheating stage, the pressure of the sliding rod is smaller, so that the normal discharge of air in the cell body is ensured, the quality of the cell body after preheating is ensured, and in the later preheating stage, the pressure of the sliding rod is increased, so that the sliding rod presses the cell body more tightly, the cell body is prevented from becoming loose, and the quality of the cell body after preheating is ensured.
Compared with the prior art, the invention has the beneficial effects that:
(1) the preheating box is sealed by the sealing cover, then a fan and a heating block are started, air is fed from an air inlet pipe and is heated, the heated air preheats the electric core body after passing through the movable cover, the rotating speed of the fan is slower in the early preheating stage, meanwhile, hot air reaches the upper part of the electric core body from two sides of the electric core body to be preheated in all directions, and the third motor is started while preheating, the rotation of the third motor drives the rotation of a third threaded rod to further drive the movable cover to reciprocate along a third fixed rod, thereby make preheating to electric core body more even, preheat the effect better.
(2) The battery core preheating device and the preheating method for lithium battery production and processing have the advantages that by arranging the cleaning mechanism and the like, while preheating is carried out, hot air can also clean white powder on the surface of the battery core body, in the later stage of preheating, the rotating speed of the fan is increased, meanwhile, the moving cover is moved, the cleaning effect of the air on the white powder is better, in addition, after the preheating is completed, the hot air can be driven to be discharged into the box body through the air outlet pipe, the heat waste is avoided, the energy is more saved, the environment is more protected, meanwhile, the air in the box body enters the cleaning box through the fixed pipe, in addition, the air is repeatedly utilized through the air inlet pipe, when the air enters the cleaning box, the positive electrode plate and the negative electrode plate are electrified, the white powder is adsorbed on the positive electrode plate and the negative electrode plate to carry out electrode dust removal, when the white powder needs to be uniformly treated, with positive electrode plate and negative electrode plate outage, white powder falls into and collects the box for it is more convenient to the clearance and the collection of white powder, makes the effect of preheating to electric core body better.
(3) The cell preheating device and the preheating method for the production and processing of the lithium battery are characterized in that a pressing mechanism and the like are arranged, when preheating is carried out, a second motor is started, the rotation of the second motor drives a second threaded rod to rotate, a movable plate moves downwards along the side wall of a second fixed rod, the movement of the movable plate drives a connecting plate to move, meanwhile, a first spring is extruded to contract, and a plurality of sliding rods are driven to move downwards along the side wall of a sealing cover, so that the upper side wall of a cell body is pressed tightly, the situation that the cell body becomes loose under the blowing action of hot air when preheating is carried out is avoided, the quality of the cell body after preheating is ensured, the pressure of the sliding rods on the cell body can be adjusted through the second motor, the pressure of the sliding rods is smaller at the early stage of preheating, the normal discharge of air in the cell body is ensured, and the quality of the cell body after preheating is ensured, in the later stage of preheating, make the pressure grow of slide bar, make it to this body pressure of electric core tighter, avoid electric core body to become loose, guarantee its quality after preheating.
Drawings
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is a schematic sectional view of the case of the present invention;
FIG. 3 is a schematic perspective view of a preheating chamber according to the present invention;
FIG. 4 is a schematic view showing the internal structure of the preheating chamber according to the present invention;
FIG. 5 is a schematic view of the internal structure of the preheating chamber in another view according to the present invention;
FIG. 6 is a schematic cross-sectional view of the outlet tube of the present invention;
FIG. 7 is an enlarged view of the structure at A in FIG. 1;
FIG. 8 is an enlarged view of the structure at B in FIG. 5;
fig. 9 is an enlarged schematic view of the structure at C in fig. 6.
In the figure: 1. a box body; 201. a first fixed block; 202. a second fixed block; 203. a loop bar; 204. a sleeve; 205. a first threaded rod; 206. a threaded sleeve; 207. a first motor; 301. moving the plate; 302. a connecting plate; 303. a slide bar; 304. a fixing ring; 305. a first spring; 401. a U-shaped plate; 402. a second fixing bar; 403. a second threaded rod; 404. a second motor; 501. a movable cover; 502. an air inlet pipe; 503. a fan; 504. a heating block; 601. a third fixed block; 602. a third threaded rod; 603. a third fixing bar; 604. a third motor; 701. an air outlet pipe; 702. cleaning the box; 703. a positive electrode plate; 704. a negative electrode plate; 705. a fixed tube; 801. a collection port; 802. a collection box; 803. a handle; 901. a tapered tube; 902. fixing the disc; 903. a through hole; 904. a second spring; 905. a sealing ball; 10. a sealing plate; 11. a box cover; 12. a preheating box; 13. a notch; 14. an L-shaped plate; 15. a cell body; 1501. a tab; 16. and (7) sealing the cover.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1 to 9, the present invention provides a cell preheating device and a preheating method for lithium battery production and processing, and the technical scheme is as follows: a cell preheating device for lithium battery production and processing comprises a box body 1 and a cell body 15, wherein the cell body 15 comprises two tabs 1501, the side wall of the box body 1 is connected with a box cover 11 through a lifting mechanism, the bottom of the box body 1 is fixedly connected with a plurality of preheating boxes 12 arranged in an array, the side wall of each preheating box 12 is provided with two symmetrically arranged notches 13, the notches 13 are matched with the tabs 1501, the top of each preheating box 12 is provided with a sealing cover 16, the upper side wall of the sealing cover 16 is fixed with the lower side wall of the box cover 11, the lower side wall of each sealing cover 16 is fixedly connected with two symmetrically arranged sealing plates 10, the sealing plates 10 are matched with the notches 13, the inner side wall of each preheating box 12 is fixedly connected with two symmetrically arranged L-shaped plates 14, the cell body 15 is placed on the L-shaped plates 14, and the lower side wall of each sealing cover 16 is provided with a compressing mechanism for compressing the cell body 15, and be provided with in each preheating cabinet 12 and be used for preheating the mechanism of preheating and be used for carrying out the clearance mechanism of clearing up to 15 surperficial white powders of electric core body 15 to electric core body 15, make preheating to electric core body 15 more even, it is better to preheat the effect, and simultaneously, be convenient for clear up and collect the 15 surperficial white powders of electric core body, make the effect of preheating electric core body 15 better, guarantee its quality after preheating, and, can be preheating the in-process, compress tightly electric core body 15, avoid electric core body 15 to become loose, guarantee its quality after preheating.
Preferably, the lifting mechanism comprises two first fixing blocks 201 which are symmetrically arranged and fixedly connected to the side wall of the box cover 11, and the side wall of the box body 1 is fixedly connected with two second fixing blocks 202 which are symmetrically arranged, wherein the lower side wall of one first fixing block 201 is fixedly connected with a loop bar 203, the side wall of the loop bar 203 is sleeved with a sleeve 204, the other end of the sleeve 204 is fixed with the upper side wall of one second fixing block 202, the lower side wall of the other first fixing block 201 is rotatably connected with a first threaded rod 205, the side wall of the first threaded rod 205 is in threaded connection with a threaded sleeve 206, the lower end of the threaded sleeve 206 is fixed with the upper side wall of the other second fixing block 202, the upper side wall of one first fixing block 201 is fixedly connected with a first motor 207, the output end of the first motor 207 penetrates through the lower side wall of the first fixing block 201 and is fixed with the upper end of the first threaded rod 205, the first motor 207 is started, the rotation of the first motor 207 drives the rotation of the first threaded rod 205, and further drives the box cover 11 to lift.
Preferably, the pressing mechanism includes a plurality of sliding rods 303 inserted into the upper side wall of each sealing cover 16 and arranged in an array, the upper end of each sliding rod 303 penetrates through the upper side wall of the box cover 11 and is fixedly sleeved with a fixing ring 304, the upper side wall of the box cover 11 is connected with a moving plate 301 through a first moving mechanism, the lower side wall of the moving plate 301 is fixedly connected with a plurality of connecting plates 302 arranged in an array, the connecting plates 302 are sleeved on the side walls of the sliding rods 303, the side walls of each sliding rod 303 are sleeved with a first spring 305, the moving plate 301 moves downwards along the side wall of the second fixing rod 402 through the first moving mechanism, the moving plate 301 drives the connecting plates 302 to move, and at the same time, the first springs 305 are squeezed to contract to drive the plurality of sliding rods 303 to move downwards along the side wall of the sealing cover 16, so as to press the upper side wall of the electric core body 15, and avoid preheating, make electric core body 15 become loose under the blowing effect of steam, guarantee its quality after preheating, and, can adjust the pressure size of slide bar 303 to electric core body 15 through second motor 404, at the initial stage of preheating, make the pressure of slide bar 303 less, guarantee the normal discharge of the interior air of electric core body 15, guarantee its quality after preheating, at the later stage of preheating, make the pressure grow of slide bar 303, it is tighter to making electric core body 15 press, avoid electric core body 15 to become loose, guarantee its quality after preheating.
Preferably, the first moving mechanism comprises two symmetrically arranged U-shaped plates 401 fixedly connected to the upper side wall of the box cover 11, and a second fixing rod 402 is fixedly connected to a side wall of one of the U-shaped plates 401, the second fixing rod 402 is inserted into a side wall of the moving plate 301, and the lower end of the second fixing rod 402 is fixed with the upper side wall of the box cover 11, the side wall of the other U-shaped plate 401 is rotatably connected with a second threaded rod 403, and the moving plate 301 is screw-connected with the side wall of the second screw 403, the lower end of the second screw 403 is rotatably connected with the upper side wall of the case cover 11, the upper side wall of one of the U-shaped plates 401 is fixedly connected with a second motor 404, and the output end of the second motor 404 penetrates through the lower side wall of the U-shaped plate 401 and is fixed to the upper end of the second threaded rod 403, and when the second motor 404 is started, the rotation of the second motor 404 drives the rotation of the second threaded rod 403, so that the moving plate 301 moves along the side wall of the second fixing rod 402.
Preferably, the preheating mechanism is including setting up the removal cover 501 in the preheating cabinet 12, and remove the inside wall that the cover 501 passes through second moving mechanism and preheating cabinet 12 and be connected, the bottom fixedly connected with intake pipe 502 of removal cover 501, and the other end of intake pipe 502 runs through the lateral wall setting of preheating cabinet 12, the lateral wall of intake pipe 502 is provided with fan 503 and heating block 504, start fan 503 and heating block 504, admit air from intake pipe 502, heat the air simultaneously, the air after the heating preheats electric core body 15 through removing cover 501 back.
Preferably, the second moving mechanism includes two third fixed blocks 601 symmetrically disposed on two opposite sidewalls of the moving cover 501, a third fixed rod 603 is inserted into a sidewall of one of the third fixed blocks 601, two ends of the third fixed rod 603 are fixed to an inner sidewall of the preheating chamber 12, a third threaded rod 602 is threadedly connected to a sidewall of the other third fixed block 601, two ends of the third threaded rod 602 are rotatably connected to the inner sidewall of the preheating chamber 12, a third motor 604 is fixedly connected to an outer sidewall of the preheating chamber 12, an output end of the third motor 604 penetrates through the inner sidewall of the preheating chamber 12 and is fixed to one end of the third threaded rod 602, the third motor 604 is started, rotation of the third motor 604 drives the third threaded rod 602 to rotate, and further drives the moving cover 501 to reciprocate along the third fixed rod 603, so as to preheat the cell body 15 more uniformly, the preheating effect is better.
Preferably, the cleaning mechanism comprises an air outlet pipe 701 fixedly connected to the side wall of the preheating tank 12, a one-way mechanism is arranged in the air outlet pipe 701, the air inlet end of the air inlet pipe 502 is fixedly connected with a cleaning tank 702, two opposite side walls of the cleaning tank 702 are provided with a positive electrode plate 703 and a negative electrode plate 704 for adsorbing white powder, the side wall of the cleaning tank 702 is fixedly connected with a fixed pipe 705, the bottom of the cleaning tank 702 is provided with a collecting mechanism for collecting white powder, while preheating is performed, hot air can also clean the white powder on the surface of the electric core body 15, in the later stage of preheating, the rotating speed of the fan 503 is increased, and meanwhile, the movable cover 501 moves, so that the cleaning effect of the white powder by the air is better, and after preheating is completed, the hot air can be discharged into the tank body 1 through the air outlet pipe 701 with the white powder, avoid thermal waste, it is more energy-concerving and environment-protective, meanwhile, the air in the box 1 gets into cleaning box 702 through fixed pipe 705 to, carry out reuse through intake pipe 502, when the air gets into cleaning box 702, energize positive electrode board 703 and negative electrode board 704, make white powder adsorb and carry out the electrode dust removal on positive electrode board 703 and negative electrode board 704.
Preferably, one-way mechanism includes tapered tube 901 and fixed disk 902 of fixed connection in outlet duct 701, and a plurality of through-holes 903 have been seted up to the lateral wall of fixed disk 902, the lateral wall of fixed disk 902 passes through second spring 904 fixedly connected with ball sealer 905, and ball sealer 905 offsets with the inside wall of tapered tube 901, after preheating and accomplishing, hot air promotes ball sealer 905 and removes, and simultaneously, second spring 904 contracts, make ball sealer 905 no longer offset with tapered tube 901, at this moment, hot air can take white powder to pass through outlet duct 701 and discharge and get into in box 1, and, the air of avoiding box 1 gets into through outlet duct 701.
Preferably, the collection mechanism includes the collection port 801 that sets up in the bottom of cleaning box 702, and the bottom of collecting port 801 is provided with collection box 802, and the lateral wall of collection box 802 is provided with handle 803, when needs are unified to white powder and are handled, cuts off positive electrode plate 703 and negative electrode plate 704, and white powder falls into collection box 802 for it is more convenient to the clearance and the collection of white powder, makes the effect of preheating to electric core body 15 better.
The invention also provides a cell preheating method for lithium battery production and processing, which comprises the following steps:
s1, placing the battery cell body 15 on the L-shaped plate 14 in the preheating box 12, placing the tab 1501 in the notch 13, driving the box cover 11 to move downwards through the lifting mechanism, so as to seal the box body 1, and simultaneously sealing the preheating box 12 by the sealing cover 16;
s2, starting the second motor 404, wherein the rotation of the second motor 404 drives the rotation of the second threaded rod 403, so that the moving plate 301 moves downwards along the side wall of the second fixing rod 402, the moving plate 301 moves to drive the connecting plate 302 to move, and meanwhile, the first spring 305 is extruded to contract, and further the sliding rods 303 are driven to move downwards along the side wall of the sealing cover 16, so that the upper side wall of the cell body 15 is pressed tightly, the cell body 15 is prevented from becoming loose under the blowing action of hot air during preheating, and the quality of the preheated cell body is ensured;
s3, starting the fan 503 and the heating block 504, feeding air from the air inlet pipe 502, heating the air, preheating the electric core body 15 after the heated air passes through the movable cover 501, and enabling the rotating speed of the fan 503 to be slow in the early preheating stage, and meanwhile, preheating hot air in all directions from the two sides of the electric core body 15 to the upper part of the electric core body 15;
s4, at the same time, the third motor 604 is started, the rotation of the third motor 604 drives the third threaded rod 602 to rotate, and further drives the movable cover 501 to reciprocate along the third fixing rod 603, so that the preheating of the cell body 15 is more uniform, and the preheating effect is better;
s5, preheating, cleaning the white powder on the surface of the battery cell body 15 by hot air, enabling the rotating speed of the fan 503 to be fast in the later stage of preheating, enabling the cleaning effect of the white powder by the air to be better by moving the movable cover 501, and enabling the hot air to carry the white powder to be discharged into the box body 1 through the air outlet pipe 701 after preheating is completed, so that heat waste is avoided, and the energy-saving and environment-friendly effects are achieved;
s6, enabling air in the box body 1 to enter the cleaning box 702 through the fixing pipe 705 and to be recycled through the air inlet pipe 502, and electrifying the positive electrode plate 703 and the negative electrode plate 704 when the air enters the cleaning box 702 so that white powder is adsorbed on the positive electrode plate 703 and the negative electrode plate 704 for electrode dust removal;
s7, when the white powder needs to be processed uniformly, the positive electrode plate 703 and the negative electrode plate 704 are powered off, and the white powder falls into the collection box 802, so that the white powder is more convenient to clean and collect, and the preheating effect on the battery cell body 15 is better;
and S8, adjusting the pressure of the sliding rod 303 on the cell body 15 through the second motor 404, wherein in the early preheating stage, the pressure of the sliding rod 303 is smaller, so that the normal discharge of air in the cell body 15 is ensured, and the quality of the cell body after preheating is ensured, and in the later preheating stage, the pressure of the sliding rod 303 is increased, so that the sliding rod presses the cell body 15 more tightly, the cell body 15 is prevented from becoming loose, and the quality of the cell body after preheating is ensured.
Claims (10)
1. The utility model provides a cell preheating device of lithium cell production and processing usefulness, includes box (1) and electric core body (15), electric core body (15) include two utmost point ear (1501), its characterized in that: the side wall of the box body (1) is connected with a box cover (11) through a lifting mechanism, the bottom of the box body (1) is fixedly connected with a plurality of preheating boxes (12) which are arranged in an array, the side wall of each preheating box (12) is provided with two notches (13) which are symmetrically arranged, the notches (13) are matched with the lugs (1501), the top of each preheating box (12) is provided with a sealing cover (16), the upper side wall of the sealing cover (16) is fixed with the lower side wall of the box cover (11), the lower side wall of each sealing cover (16) is fixedly connected with two sealing plates (10) which are symmetrically arranged, the sealing plates (10) are matched with the notches (13), the inner side wall of each preheating box (12) is fixedly connected with two L-shaped plates (14) which are symmetrically arranged, the cell body (15) is placed on the L-shaped plates (14), and the lower side wall of each sealing cover (16) is provided with a compressing mechanism for compressing the cell body (15), and a preheating mechanism for preheating the battery cell body (15) and a cleaning mechanism for cleaning white powder on the surface of the battery cell body (15) are arranged in each preheating box (12).
2. The cell preheating device for lithium battery production and processing according to claim 1, wherein: the lifting mechanism comprises two first fixed blocks (201) which are symmetrically arranged and fixedly connected to the side wall of the box cover (11), the side wall of the box body (1) is fixedly connected with two second fixed blocks (202) which are symmetrically arranged, one of the first fixed blocks (201) is fixedly connected with a loop bar (203) at the lower side wall, a sleeve (204) is sleeved on the side wall of the loop bar (203), the other end of the sleeve (204) is fixed with the upper side wall of one of the second fixed blocks (202), the lower side wall of the other first fixed block (201) is rotatably connected with a first threaded rod (205), the side wall of the first threaded rod (205) is in threaded connection with a threaded sleeve (206), the lower end of the threaded sleeve (206) is fixed with the upper side wall of the other second fixed block (202), and one of the first fixed blocks (201) is fixedly connected with a first motor (207), and the output end of the first motor (207) penetrates through the lower side wall of the first fixing block (201) and is fixed with the upper end of the first threaded rod (205).
3. The cell preheating device for lithium battery production and processing according to claim 1, wherein: hold-down mechanism is including inserting slide bar (303) of establishing a plurality of arrays settings of side wall on each sealed lid (16), and the upper end of each slide bar (303) runs through the side wall and the fixed cover of going up of case lid (11) and is equipped with solid fixed ring (304), the side wall that goes up of case lid (11) is connected with movable plate (301) through first moving mechanism, and connecting plate (302) that the lower side wall fixedly connected with of movable plate (301) set up, connecting plate (302) cover is established on the lateral wall of slide bar (303), and the lateral wall cover of each slide bar (303) is equipped with first spring (305).
4. The cell preheating device for lithium battery production and processing according to claim 3, wherein: the first moving mechanism comprises two symmetrically arranged U-shaped plates (401) fixedly connected to the upper side wall of the box cover (11), and the side wall of one U-shaped plate (401) is fixedly connected with a second fixed rod (402), the second fixed rod (402) is inserted into the side wall of the moving plate (301), the lower end of the second fixed rod (402) is fixed with the upper side wall of the box cover (11), the side wall of the other U-shaped plate (401) is rotatably connected with a second threaded rod (403), the moving plate (301) is in threaded connection with the side wall of a second threaded rod (403), the lower end of the second threaded rod (403) is rotatably connected with the upper side wall of the box cover (11), a second motor (404) is fixedly connected with the upper side wall of one U-shaped plate (401), and the output end of the second motor (404) penetrates through the lower side wall of the U-shaped plate (401) and is fixed with the upper end of the second threaded rod (403).
5. The cell preheating device for lithium battery production and processing according to claim 1, wherein: preheating mechanism is including setting up removal cover (501) in preheating cabinet (12), and removes cover (501) and be connected with the inside wall of preheating cabinet (12) through the second moving mechanism, the bottom fixedly connected with intake pipe (502) of removal cover (501), and the lateral wall setting that preheating cabinet (12) were run through to the other end of intake pipe (502), the lateral wall of intake pipe (502) is provided with fan (503) and heating block (504).
6. The cell preheating device for lithium battery production and processing according to claim 5, wherein: the second moving mechanism comprises a third fixing block (601) which is fixedly connected to two opposite side walls of the moving cover (501) and symmetrically arranged, wherein a third fixing rod (603) is inserted into the side wall of the third fixing block (601), two ends of the third fixing rod (603) are fixed to the inner side wall of the preheating box (12), the other end of the third fixing block (601) is connected with a third threaded rod (602) in a threaded mode, two ends of the third threaded rod (602) are rotatably connected with the inner side wall of the preheating box (12), a third motor (604) is fixedly connected to the outer side wall of the preheating box (12), and the output end of the third motor (604) penetrates through the inner side wall of the preheating box (12) and is fixed to one end of the third threaded rod (602).
7. The cell preheating device for lithium battery production and processing according to claim 5, wherein: the cleaning mechanism comprises an air outlet pipe (701) fixedly connected to the side wall of the preheating box (12), a one-way mechanism is arranged in the air outlet pipe (701), the air inlet end of the air inlet pipe (502) is fixedly connected with a cleaning box (702), two opposite side walls of the cleaning box (702) are provided with a positive electrode plate (703) and a negative electrode plate (704) used for adsorbing white powder, the side wall of the cleaning box (702) is fixedly connected with a fixing pipe (705), and the bottom of the cleaning box (702) is provided with a collecting mechanism used for collecting the white powder.
8. The cell preheating device for lithium battery production and processing according to claim 7, wherein: one-way mechanism includes tapered tube (901) and fixed disk (902) of fixed connection in outlet duct (701), and a plurality of through-holes (903) have been seted up to the lateral wall of fixed disk (902), the lateral wall of fixed disk (902) passes through second spring (904) fixedly connected with sealing ball (905), and sealing ball (905) offset with the inside wall of tapered tube (901).
9. The cell preheating device for lithium battery production and processing according to claim 7, wherein: the collecting mechanism comprises a collecting opening (801) formed in the bottom of the cleaning box (702), a collecting box (802) is arranged at the bottom of the collecting opening (801), and a handle (803) is arranged on the side wall of the collecting box (802).
10. A method for preheating a battery core for producing and processing a lithium battery is characterized by comprising the following steps: the method comprises the following steps:
s1, placing the battery cell body (15) on an L-shaped plate (14) in a preheating box (12), placing a lug (1501) in a notch (13), driving a box cover (11) to move downwards through a lifting mechanism so as to seal the box body (1), and sealing the preheating box (12) through a sealing cover (16);
s2, starting a second motor (404), wherein the rotation of the second motor (404) drives a second threaded rod (403) to rotate, so that a moving plate (301) moves downwards along the side wall of a second fixed rod (402), the moving plate (301) drives a connecting plate (302) to move, and meanwhile, a first spring (305) is extruded to contract, and further a plurality of sliding rods (303) are driven to move downwards along the side wall of a sealing cover (16), so that the upper side wall of the cell body (15) is pressed tightly, the situation that the cell body (15) becomes loose under the blowing action of hot air during preheating is avoided, and the quality of the cell body after preheating is ensured;
s3, starting a fan (503) and a heating block (504), feeding air from an air inlet pipe (502), heating the air, preheating the cell body (15) after the heated air passes through a movable cover (501), wherein in the early preheating stage, the rotating speed of the fan (503) is slow, and meanwhile, the hot air reaches the upper part of the cell body (15) from the two sides of the cell body (15) to be preheated in all directions;
s4, simultaneously, starting a third motor (604), wherein the rotation of the third motor (604) drives a third threaded rod (602) to rotate, and further drives a movable cover (501) to reciprocate along a third fixed rod (603), so that the cell body (15) is preheated more uniformly and the preheating effect is better;
s5, preheating, cleaning the white powder on the surface of the battery cell body (15) by hot air, enabling the rotating speed of the fan (503) to be fast in the later stage of preheating, and enabling the cleaning effect of the air on the white powder to be better by moving the movable cover (501), and after preheating is completed, enabling the hot air to take the white powder to be discharged into the box body (1) through the air outlet pipe (701), so that heat waste is avoided, and the energy-saving and environment-friendly effects are achieved;
s6, air in the box body (1) enters a cleaning box (702) through a fixing pipe (705) and is recycled through an air inlet pipe (502), and when the air enters the cleaning box (702), the positive electrode plate (703) and the negative electrode plate (704) are electrified, so that white powder is adsorbed on the positive electrode plate (703) and the negative electrode plate (704) for electrode dust removal;
s7, when the white powder needs to be processed uniformly, the positive electrode plate (703) and the negative electrode plate (704) are powered off, and the white powder falls into the collection box (802), so that the white powder is more convenient to clean and collect, and the preheating effect on the cell body (15) is better;
s8, adjusting the pressure of the sliding rod (303) on the battery cell body (15) through the second motor (404), enabling the pressure of the sliding rod (303) to be smaller in the early preheating stage, ensuring normal discharge of air in the battery cell body (15) and ensuring the quality of the battery cell body after preheating, and enabling the pressure of the sliding rod (303) to be larger in the later preheating stage, enabling the sliding rod to be more tightly pressed on the battery cell body (15), avoiding the battery cell body (15) from becoming loose and ensuring the quality of the battery cell body after preheating.
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