CN218568927U - Electricity core hot press unit - Google Patents

Electricity core hot press unit Download PDF

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Publication number
CN218568927U
CN218568927U CN202221848233.3U CN202221848233U CN218568927U CN 218568927 U CN218568927 U CN 218568927U CN 202221848233 U CN202221848233 U CN 202221848233U CN 218568927 U CN218568927 U CN 218568927U
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China
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hot
pressing
plate
hot pressing
force transmission
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陈曦
邓乔兵
王朝华
张�杰
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Shenzhen Yuchen Intelligent Equipment Co Ltd
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Shenzhen Yuchen Intelligent Equipment Co Ltd
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    • 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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Abstract

The utility model provides an electric core hot press unit, including frame assembly, actuating mechanism, hot pressing module, elevating system, short circuit testing mechanism and dust removal mechanism, the upper and lower hot pressboard combination of hot pressing module forms the hot pressing mouth, and actuating mechanism is only responsible for exerting pressure to the hot pressing module, and adopts removable power transmission component to reduce the pressurization stroke, and elevating system can drive hot pressing module to go up and down in order to open or close the hot pressing mouth, and in the hot pressing process, elevating system can offset the gravity of last hot pressing module under the cooperation of the proportional valve that exerts power; the short circuit testing mechanism is used for detecting the resistance value of the battery cell, and the dust removal mechanism is used for removing dust on the contact surface of the battery cell and synchronously sucking away dust in the time of the feeding clearance. This hot press unit can realize increasing the hot pressing mouth and need not increase the pressurization stroke, and the isobaric hot pressing of the intraoral electric core of multilayer hot pressing ensures the uniformity of electric core hot pressing quality, and the nonconforming product is rejected to the resistance value after the detectable electric core hot pressing, and can clean the hot pressing mouth and ensure that electric core is clean and the hot pressing workshop cleanliness factor.

Description

Electricity core hot press unit
Technical Field
The utility model belongs to the technical field of the electric core of lithium cell is made and is equipped, especially, relate to an electric core hot press unit.
Background
The anode of the electric core of the secondary battery such as a lithium battery is coated with lithium-containing amorphous carbon powder on two sides of a copper foil, the cathode is coated with nickel, manganese and cobalt powder on two sides of an aluminum foil, the diaphragm is formed by coating a ceramic particle layer on one side of a polyolefin film and coating a polymer binder layer on the other sides of the ceramic particle layer and the polyolefin film, and the diaphragm is densely distributed with round micropores through which lithium ions can pass, thereby playing the role of a high-resistance special screen in a battery electrochemical system. The winding electric core is prepared into a rough blank of the winding electric core by winding and stacking a cathode strip, an anode strip and a diaphragm strip in four layers (with the diaphragm strip ceramic particle layer facing to the anode); the laminated cell adopts a pole piece of a cathode and an anode and a diaphragm belt or a diaphragm sheet, the cathode, the diaphragm, the anode and the diaphragm are laminated in four layers (the diaphragm belt or the diaphragm sheet ceramic particle layer faces the anode), and a rough blank of the laminated cell is prepared by repeatedly laminating and multi-laminating. The cathode and anode electrode strips or pole pieces, and the diaphragm strips or diaphragm sheets cannot be dried too much to prevent breakage and powder falling during winding or lamination, and the battery cell rough blank is fluffy, so that the battery cell rough blank has large space volume and is inconvenient to take due to unshaped shape; the finished product battery core requires that the cathode and anode pole strips or pole pieces based on material drying are in full contact with the diaphragm strips or diaphragms to ensure the performance of the high-resistance special screen (for example, the resistance value is between the lower limit of 3M omega and the upper limit of 21M omega), so the battery core rough blank can be made into a qualified finished product battery core after being dried and properly compressed.
Heating to change water into vapor to overflow the materials to dry the materials and exhaust some air between the materials, and simultaneously coarsening grains of the solid materials or changing the organization structure of the materials, so that the bonding force between the grains is reduced to reduce the yield strength of the solid materials, so that the solid materials are softened and easy to deform and compress, and the polymer binder is softened and easy to expand and permeate.
In industrial production, a hot pressing unit with a hot pressing port is adopted to heat and pressurize at the same time, so that the battery core rough blank is heated and pressurized at the same time and is compressed at the same time of drying. The hot-pressing unit is required to be provided with a high-precision high-temperature and high-pressure mechanism to ensure the hot-pressing quality, and an insulation detection mechanism is required to monitor and finally detect the resistance value between the cathode and the anode so as to stop hot pressing in advance and reject the electric core with unqualified resistance value, thereby ensuring that the resistance value of the finished product electric core is qualified.
The prior art has the defects that firstly, the multi-layer hot-pressing port is opened and closed by the driving mechanism, and the opening and closing stroke of the driving mechanism is increased when the layer is added, so that the frame of the hot-pressing device must be greatly heightened.
The second defect of the prior art is that the pressure equalizing problem of a multilayer hot pressing port cannot be solved, the gravity of a group of hot pressing modules is increased by the pressure born by the internal electric core of the hot pressing port under the second defect when the electric core is hot-pressed, the gravity exceeds the precision range of the hot pressing pressure, and the hot pressing device is restricted to improve the hot pressing production efficiency by arranging two or more layers of hot pressing ports.
Third, the dust problem can not be solved to prior art shortcoming, takes away the back away through the electric core of hot pressing, and the dust that inevitably has on polar zone or the pole piece to fall falls or glues on the electric core contact surface of hot pressboard, causes the pollution to follow-up electric core. The existing treatment method is to stop the hot-pressing equipment, open the hot-pressing chamber, and manually wipe the cell contact surfaces of the upper and lower hot-pressing plates of the hot-pressing chamber by using a wiping piece to soak alcohol. Therefore, the existing dust removal technology cannot be automated, delays the hot pressing production time, is not thorough in dust removal, pollutes the environments of the battery cell, the hot press and the hot pressing workshop, and destroys the cleanliness of the hot pressing workshop. Therefore, it is necessary to configure an instant dust removal mechanism for the cell hot-pressing device, so that dust can be removed in time and absorbed away in the production process of the cell hot-pressing device, dust can be removed completely, the environment of the cell, the hot press and the hot-pressing workshop is not polluted, the dust removal efficiency is improved, the hot-pressing production time is not delayed, and the hot-pressing production efficiency is not reduced.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an electricity core hot press unit, it can need not increase the pressurization stroke when increasing the hot pressing mouth, and makes the isobaric hot pressing of the intraoral electric core of multilayer hot pressing, ensures the uniformity of electric core hot pressing quality, and the defective work is rejected to the resistance value after the detectable electricity core hot pressing, and can clean the hot pressing mouth and ensure that electric core is clean and the hot pressing workshop cleanliness factor.
The utility model discloses an electricity core hot press unit is realized like this, an electricity core hot press unit, including frame assembly and a plurality of hot pressing module that erect in the direction of height of frame assembly, hot pressing module includes lower hot pressing board subassembly and upper hot pressing board subassembly, lower hot pressing board subassembly includes lower hot pressing board, upper hot pressing board subassembly includes upper hot pressing board, the relative parallel arrangement from top to bottom space between upper hot pressing board and the lower hot pressing board constitutes the hot pressing mouth, upper hot pressing board has last electric core contact surface and is used for contacting the electric core, lower hot pressing board has lower electric core contact surface and is used for bearing the electric core; the electric core hot-pressing device also comprises a driving mechanism, a lifting mechanism, a short circuit testing mechanism and a dust removing mechanism;
the driving mechanism comprises a hot-pressing driving assembly, a force application assembly and a force transmission assembly; the hot pressing driving component drives the force application component, and the force transmission component can transmit the pressure of the force application component to the hot pressing module closest to the driving mechanism;
the lifting mechanism is used for driving the hot pressing module to lift so as to open or close the hot pressing port, and the lifting mechanism can counteract the gravity of the hot pressing module above the lifting mechanism under the coordination of the output proportional valve in the hot pressing process;
the short circuit testing mechanism is arranged in the hot pressing port and used for detecting the resistance value of the battery cell;
the dust removal mechanism is arranged outside the hot pressing port and used for scraping and removing dust of the upper battery cell contact surface and the lower battery cell contact surface and synchronously sucking away dust when the battery cells are not in the hot pressing port or the feeding clearance time is out.
Furthermore, the frame assembly comprises a frame, a hot-pressing driving part bracket, a plurality of sliding groups, a plurality of sliding plates, a force application plate and a plurality of hot-pressing plate assembly mounting plates; the frame comprises a top plate, an upright post, a bottom plate and a nut, and the upright post is vertically fixed between the top plate and the bottom plate through the nut; the sliding group comprises a sliding rail and sliding blocks, the sliding rail is vertically fixed on the upright post, and the sliding blocks are sleeved on the sliding rail in a sliding manner; the sliding plate is fixed among the sliding blocks at the same height position; the force application plate is fixed on the uppermost sliding plate, the hot pressing plate assembly mounting plates are respectively mounted on the sliding plates at other height positions, and the hot pressing plate assembly mounting plates are used for mounting the lower hot pressing plate assembly on the hot pressing plate assembly mounting plates and mounting the upper hot pressing plate assembly on the hot pressing plate assembly mounting plates.
Further, hot pressing drive assembly includes hot pressing driving piece, derailleur, shaft coupling, bearing group and lead screw, the hot pressing driving piece is installed on the hot pressing driving piece support, the derailleur with the transmission of hot pressing driving piece is connected, the lead screw passes through the shaft coupling with the coaxial hookup of pivot of derailleur, the lead screw passes through the bearing group is fixed on the roof.
Further, the force application assembly comprises a nut and a force application rod,
the screw nut and the force application rod are fixed on the force application plate, the screw nut is in threaded connection with the screw rod, and the screw rod applies force to the combination of the screw nut, the force application plate and the force application rod in a rotating mode.
Furthermore, the force transmission assembly comprises a force transmission bracket, a force transmission horizontal sliding group, a force transmission displacement driving part, a force transmission bracket, a force transmission lifting sliding group, a force transmission supporting plate, a force transmission rod buckle, a force transmission elastic part, a force transmission displacement sensor group and a limiting column; the force transmission support is arranged on a hot pressing plate assembly mounting plate at the top of the frame assembly, a slide rail of the force transmission horizontal sliding group is fixed on the force transmission support, the force transmission bracket is fixed on a slide block of the force transmission horizontal sliding group, a slide rail of the force transmission lifting sliding group is fixed on the force transmission bracket, the force transmission supporting plate is fixed on the slide block of the force transmission lifting sliding group, the force transmission rod is arranged on the force transmission supporting plate through the force transmission rod buckle, and the force transmission elastic part is clamped between the force transmission supporting plate and the force transmission bracket and used for supporting the force transmission supporting plate and the force transmission rod; the force transmission displacement driving piece is arranged on the force transmission bracket, and the power output end of the force transmission displacement driving piece is fixedly connected with the force transmission bracket; the outer side surface of the force transmission support is provided with two force transmission displacement sensor groups which are arranged at intervals and are respectively used for detecting the sliding start position and the sliding stop position of the force transmission supporting plate, two ends of the force transmission support are respectively provided with a limiting column used for limiting the sliding range of the force transmission supporting plate, the force transmission displacement driving piece is used for driving the force transmission supporting plate to carry the force transmission rod to move so that the force transmission rod is aligned with the force application rod, and the force application rod is kept away from after being moved away so that the force application rod can touch the hot pressing plate assembly mounting plate.
Further, the upper hot-pressing plate assembly comprises the upper hot-pressing plate, an electric heating unit, a heat insulation plate, a back plate and a pressure sensor which are sequentially stacked upwards, and the pressure sensor is fixed on the lower surface of the hot-pressing plate assembly mounting plate;
the lower hot-pressing plate assembly comprises a lower hot-pressing plate, an electric heating unit and a heat insulation plate which are sequentially stacked downwards, the heat insulation plate is fixed on the upper surface of the hot-pressing plate assembly mounting plate, and the lower hot-pressing plate assembly at the lowest part of the hot-pressing device is fixed on the bottom plate through the heat insulation plate.
Further, elevating system includes lift driving piece and lift driving piece support, the lift driving piece is through under the lift driving piece support is fixed under on the hot pressing board subassembly mounting panel, its expansion end is through last lift driving piece support is fixed on under the hot pressing board subassembly mounting panel, the lift driving piece can stretch out the expansion end and push away two that link to each other hot pressing board subassembly mounting panel is in order to open the hot pressing mouth also can indent expansion end draws near two that link to each other hot pressing board subassembly mounting panel is with the closure hot pressing mouth, the lift driving piece can produce quantized thrust or pulling force with the cooperation of the proportional valve of exerting oneself, at the hot pressing in-process, the gravity of hot pressing module can be offset to the quantized thrust that the lift driving piece produced.
Further, short circuit test mechanism includes short circuit test mounting panel, short circuit test driving piece, probe mounting panel, probe, utmost point ear backing plate and utmost point ear backing plate mounting panel, and short circuit test mounting panel is fixed on the house hot pressing module go up on hot pressing plate assembly's the lateral surface, short circuit test driving piece fixes down on the short circuit test mounting panel, the probe mounting panel is fixed the expansion end of short circuit test driving piece, the probe has cloudy, positive pole two, all installs stretch into on the probe mounting panel in the hot pressing mouth, utmost point ear backing plate mounting panel is fixed on the house hot pressing module down hot pressing plate assembly with short circuit test mounting panel homonymy just right side on, utmost point ear backing plate is installed stretch into on the utmost point ear backing plate mounting panel electric core contact surface down, short circuit test mechanism sets up in the hot pressing mouth, external connection short circuit tester for electric core carries out the resistance value when hot pressing and measures.
Furthermore, the dust removal mechanism comprises a dust removal support, a dust removal driving module and an air knife module, wherein the dust removal support is used for installing the dust removal driving module and fixing the dust removal driving module and the dust removal mechanism together with the whole dust removal mechanism at a preset position outside each hot-pressing opening of the electric core hot-pressing device; the air knife module is connected with the movable end of the dust removal driving module in a sliding manner, and the dust removal driving module can drive the air knife module to enter the hot pressing port and return along the direction parallel to the plate surfaces of the upper hot pressing plate and the lower hot pressing plate of the hot pressing module; when reciprocating in the hot pressing mouth, the air knife module can scrape go up the hot pressboard go up the electric core contact surface with the hot pressboard down the dust of adhesion on the electric core contact surface to can suck away the dust in step.
Further, the air knife module comprises an air knife assembly, and the air knife assembly comprises an air cylinder and a scraper; the dryer is the cavity barrel and follows barrel length direction's side direction opening, and its length, height can put into the scraper, the scraper can be fixed through the fastener in the opening of dryer, the air knife subassembly is used for the spatula go up hot pressboard electricity core contact surface with hot pressboard electricity core contact surface down, the dust is blown away in the confession ventilation simultaneously.
Compared with the prior art, the utility model, beneficial effect lies in:
the utility model discloses an electricity core hot press unit, erect a plurality of hot pressing module in the direction of height of frame, the lower hot pressboard of the lower hot pressboard subassembly of hot pressing module and last hot pressboard subassembly constitutes the hot pressing mouth relatively from top to bottom, its hot pressing drive assembly is located the top of frame assembly and only is responsible for exerting pressure to hot pressing module, do not be responsible for lift hot pressing module and open or closed hot pressing mouth, and adopt and to remove power transmission subassembly and reduce the pressurization stroke, hot pressing mouth is opened to the elevating system jacking through a plurality of hot pressing module inter block settings, the closed hot pressing mouth of hot pressing module is gone up in the descending, hot pressing drive assembly exerts pressure in-process, elevating system can offset the gravity of hot pressing subassembly down under the cooperation of the proportional valve that exerts power, the utility model discloses an electricity core hot press unit can increase hot pressing module and need not increase the pressurization stroke when increasing the hot pressing mouth, and make the interior electricity core isobaric hot pressing of multilayer hot pressing, ensure the uniformity of hot pressing quality.
Furthermore, the utility model discloses the defective work is rejected to the resistance value after the short circuit accredited testing organization detectable electricity core hot pressing that sets up, and the clean hot pressing mouth of electricity core is ensured to the cleanable hot pressing mouth of dust removal mechanism and the cleanliness factor of hot pressing workshop.
Drawings
Fig. 1 is a schematic diagram of a battery cell after hot press forming according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a cell hot-pressing device provided in an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a frame with a sliding group of a cell hot-pressing apparatus provided in an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a frame assembly of a cell hot-pressing apparatus provided in an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a driving mechanism of a hot press apparatus according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of a hot pressing driving assembly of a driving mechanism provided in an embodiment of the present invention;
fig. 7 is a schematic structural diagram of a force application assembly of a driving mechanism according to an embodiment of the present invention;
fig. 8 is a schematic diagram of a force transfer assembly of a drive mechanism according to an embodiment of the present invention;
fig. 9 is a schematic view of another perspective of the force transfer assembly of the driving mechanism according to the embodiment of the present invention;
fig. 10 is a schematic structural diagram of a hot-pressing module of a battery cell hot-pressing apparatus provided in an embodiment of the present invention;
fig. 11 is a schematic structural diagram of an upper hot pressing assembly of a hot pressing module of a cell hot pressing apparatus provided in an embodiment of the present invention;
fig. 12 is a schematic structural diagram of a lower hot pressing assembly of a hot pressing module of a battery cell hot pressing apparatus provided in an embodiment of the present invention;
fig. 13 is a schematic structural diagram of a frame with a lifting mechanism of a cell hot-pressing apparatus provided in an embodiment of the present invention;
fig. 14 is a schematic structural diagram of a dust removal mechanism and a short circuit testing mechanism of a cell hot-pressing device provided in an embodiment of the present invention;
FIG. 15 is an enlarged view of area A of FIG. 14;
fig. 16 is a schematic structural diagram of a short circuit testing mechanism of a cell hot-pressing apparatus provided in an embodiment of the present invention;
fig. 17 is a schematic structural diagram of a dust removing mechanism of a cell hot-pressing apparatus provided in an embodiment of the present invention;
fig. 18 is a schematic structural diagram of a suspension hanger assembly of a dust removing mechanism of a cell hot-pressing device according to an embodiment of the present invention;
fig. 19 is a schematic structural diagram of a wind knife assembly of a dust removal mechanism of a cell hot-pressing device provided by the embodiment of the present invention.
Description of reference numerals:
100-a battery core hot-pressing device, 101-a hot-pressing port,
110-frame assembly, 111-frame, 1111-top plate, 1112-upright post, 1113-bottom plate, 1114-nut, 112-sliding group, 1121-sliding block, 1122-sliding rail, 113-driver bracket, 114-force application plate, 115-sliding plate, 116-hot pressing plate component mounting plate,
120-a drive mechanism for driving the motor to rotate,
121-a hot-pressing driving component, 1211-a hot-pressing driving component, 1212-a speed changer, 1213-a coupler, 1214-a bearing group and 1215-a screw rod,
122-force application component, 1221-nut, 1222-force application rod,
123-force transmission component, 1231-force transmission bracket, 1232-force transmission horizontal sliding group, 1233-force transmission displacement driving component, 1234-force transmission bracket, 1235-force transmission lifting sliding group, 1236-force transmission supporting plate, 1237-force transmission rod, 1238-force transmission rod buckle, 1239-force transmission elastic component, 123 a-force transmission displacement sensor group, 123 b-limit column,
130-hot pressing module, 131-lower hot pressing plate component, 1311-upper hot pressing plate, 13111-upper core contact surface, 1312-electric heating unit, 1313-heat insulation plate, 1314-back plate, 1315-pressure sensor, 132-upper hot pressing plate component, 1321-lower hot pressing plate, 13211-lower core contact surface,
140-lifting mechanism, 141-lifting driving member and 142-lifting driving member support,
150-short circuit testing mechanism, 151-short circuit testing mounting plate, 152-short circuit testing driving piece, 153-probe mounting plate, 154-probe, 155-tab backing plate, 156-tab backing plate mounting plate,
160-dust removal mechanism, 161-dust removal bracket, 1611-dust removal driving module mounting plate, 1612-dust removal mechanism mounting plate, 1613-sliding sleeve, 162-dust removal driving module, 1621-dust removal driving piece, 1622-dust removal driving piece mounting plate, 1623-sliding rod, 1624-sliding rod baffle plate, 163-air knife module, 1631-pushing plate, 1632-air knife driving piece, 1633-air knife component, 16331 air duct, 16332-scraper, 1634-clamp, 1635-suspension hanging component, 16351-suspension hanging, 16352-suspension hanging mounting piece, 16353-air knife component sliding group and 16354-air knife driving piece mounting plate,
200-cell, 210-cell body, 220-cell positive pole lug and 230-cell negative pole lug.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the unit or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; furthermore, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, as they may be fixedly connected, detachably connected, or integrally connected, for example; the two components can be directly connected or indirectly connected through an intermediate medium, and the two components can be communicated with each other. The specific meaning of the terms in the present invention can be understood in a specific case to those skilled in the art.
Referring to fig. 2, it is shown that the embodiment provided in the embodiment provides a cell hot-pressing apparatus 100, which is used for hot-pressing a cell 200, where the cell 200 includes a cell body 210, a cell anode tab 220, and a cell cathode tab 230 (as shown in fig. 1), and the cell hot-pressing apparatus 100 includes a frame assembly 110, a driving mechanism 120, a plurality of hot-pressing modules 130, a lifting mechanism 140, a short-circuit testing mechanism 150, and a dust removing mechanism 160.
Referring to fig. 11 and 12, each of the plurality of hot pressing modules 130 erected in the height direction of the frame assembly 110 includes a lower hot pressing plate assembly 132 and an upper hot pressing plate assembly 131, each of the lower hot pressing plate assemblies 132 includes a lower hot pressing plate 1321, each of the upper hot pressing plate assemblies 131 includes an upper hot pressing plate 1311, a space between the upper hot pressing plate 1311 and the lower hot pressing plate 1321, which are arranged in parallel, forms a hot pressing port 101, the upper hot pressing plate 1311 has an upper cell contact surface 13111 for contacting the battery cell 200, and the lower hot pressing plate 1321 has a lower cell contact surface 13211 for carrying the battery cell 200;
referring to fig. 5, the driving mechanism 120 includes a thermal pressing driving assembly 121, a force application assembly 122 and a force transmission assembly 123; the thermal pressing driving assembly 121 drives the force application assembly 122, and the force transmission assembly 123 can transmit the pressure of the force application assembly 122 to the thermal pressing module 130 closest to the driving mechanism 120, and particularly, the driving mechanism 120 is not responsible for the ascending and descending of the plurality of thermal pressing modules 130.
The lifting mechanism 140 can drive the hot pressing module 130 to lift to open or close the hot pressing port 101, and in the hot pressing process, the lifting mechanism 140 can counteract the gravity of the upper hot pressing module 120 under the cooperation of the output proportional valve;
the short circuit testing mechanism 150 is arranged in the hot pressing port 101 and used for detecting the resistance value of the battery cell 200;
the dust removing mechanism 160 is disposed outside the hot pressing port 101 and is used to scrape and remove dust from the upper cell contact surface 13111 and the lower cell contact surface 13211 and suck away dust synchronously when there is no cell 200 in the hot pressing port 101 or during the feeding/discharging gap.
Further, referring to fig. 4, the frame assembly 110 includes a frame 111, a hot press driving bracket 113, a plurality of sliding sets 112, a plurality of sliding plates 115, a force application plate 114, and a plurality of hot press plate assembly mounting plates 116. Referring to fig. 3, frame 111 includes top plate 1111, upright 1112, bottom plate 1113, and nut 1114, upright 1112 being vertically secured between top plate 1111 and bottom plate 1113 by nut 114. The sliding set 112 includes a sliding rail 1121 and sliding blocks 1122, the sliding rail 1121 is vertically fixed on the vertical posts 1112, and the sliding blocks 1112 are slidably sleeved on the sliding rail 1121; the slide plate 115 is fixed between the plurality of sliders 1122 at the same height position; the force application plate 114 is fixed to the uppermost slide plate 115. Referring to fig. 10, a plurality of hot platen assembly mounting plates 116 are respectively mounted on the slide plates 115 at other heights, and the hot platen assembly mounting plates 116 are used for mounting the lower hot platen assembly 132 thereon and the upper hot platen assembly 131 thereunder.
In the present embodiment, referring to fig. 11 and 12 again, the upper hot pressing plate assembly 131 includes an upper hot pressing plate 1311, an electric heating unit 1312, a heat insulation plate 1313, a back plate 1314, and a pressure sensor 1315 stacked up in sequence, the pressure sensor is fixed on the lower surface of the hot pressing plate assembly mounting plate 116, the lower hot pressing plate assembly 132 includes a lower hot pressing plate 1321, an electric heating unit 1312, and a heat insulation plate 1313 stacked down in sequence, and is fixed on the upper surface of the hot pressing plate assembly mounting plate 116 through the heat insulation plate 1313, wherein the lower hot pressing plate assembly 132 at the bottom of the hot pressing apparatus 100 is fixed on the bottom plate 1113 through the heat insulation plate 1313.
In the present embodiment, referring to fig. 6, the thermo-compression driving assembly 121 includes a thermo-compression driver 1211, a transmission 1212, a coupling 1213, a bearing set 1214 and a lead screw 1215, the thermo-compression driver 1211 is mounted on the thermo-compression driver bracket 113, and the force applying rod 1222 is fixed below the force applying plate 114.
The transmission 1212 is in transmission connection with a thermo-compression driving element 1211, the lead screw 1215 is coaxially coupled with a rotating shaft of the transmission 1212 through a coupling 1213, and the lead screw 1215 is fixed on the top plate 1111 through a bearing set 1214.
In this embodiment, referring to fig. 7, the force application assembly 122 includes a nut 1221 and a force application rod 1222, the nut 1221 and the force application rod 1222 are fixed on the force application plate 114, the nut 1221 is screwed with a screw 1215, and the screw 1215 rotationally applies force to the combination of the nut 1221, the force application plate 1114 and the force application rod 1222.
In this embodiment, referring to fig. 8 and 9, the force transmission assembly 123 includes a force transmission bracket 1231, a force transmission horizontal sliding set 1232, a force transmission displacement driving member 1233, a force transmission bracket 1234, a force transmission lifting sliding set 1235, a force transmission supporting plate 1236, a force transmission rod 1237, a force transmission rod buckle 1238, a force transmission elastic member 1239, a force transmission displacement sensor set 123a, and a limiting column 123b, wherein the force transmission bracket 1234 is installed on the hot pressing plate assembly installation plate 116 at the top of the frame assembly 110.
The slide rail of the force transmission horizontal sliding group 1232 is fixed on the force transmission bracket 1231, the force transmission bracket 1234 is fixed on the slide block of the force transmission horizontal sliding group 1232, the slide rail of the force transmission lifting sliding group 1235 is fixed on the force transmission bracket 1234, the force transmission supporting plate 1236 is fixed on the slide block of the force transmission lifting sliding group 1235, the force transmission rod 1237 is installed on the force transmission supporting plate 1236 through the force transmission rod buckle 1238, and the force transmission elastic part 1239 is clamped between the force transmission supporting plate 1236 and the force transmission bracket 1234 and is used for supporting the force transmission supporting plate 1236 and the force transmission rod 1237. A force-transmitting displacement drive 1233 is mounted on the force-transmitting bracket 1234, the power output end of which is fixedly connected to the force-transmitting bracket 1234.
Two force transmission displacement sensor groups 123a which are arranged at intervals and are respectively used for detecting the sliding start position and the sliding stop position of the force transmission supporting plate 1236 are arranged on the outer side surface of the force transmission support 1231, and limiting columns 123b used for limiting the left-right sliding range of the force transmission supporting plate 1236 are respectively arranged at the two ends of the force transmission support 1231.
The force transmitting displacement driver 1233 is used to drive the force transmitting plate 1236 to move along with the force transmitting rod 1237 to make the force transmitting rod 1237 aligned with the force applying rod 1222 and to move away from the force applying rod 1222 to make the force applying rod 1222 touch the topmost hot plate assembly mounting plate 116.
When the force transmission rod 1237 is located right below the force application rod 1222, the force application rod 1222 can press down the force transmission rod 1237, the force transmission rod 1237 transmits pressure to the uppermost hot pressing board assembly mounting plate 116, and the uppermost hot pressing board assembly mounting plate 116 transmits pressure to the hot pressing board assembly mounting plate 116 below the uppermost hot pressing board assembly mounting plate 116 through the battery cell 200 until the pressure is transmitted to the bottom plate 1113, so as to apply pressure to the battery cell.
During the hot pressing operation, the force transmission displacement driving member 1233 can move the force transmission supporting plate 1236 and the force transmission rod 1237 thereon, so that the force transmission rod 1237 and the force application rod 1222 are aligned up and down for pressing. After the hot pressing is completed, the force transmission displacement driving piece 1233 moves the force transmission supporting plate 1236 and the force transmission rod 1237 on the force transmission supporting plate out of the lower part of the force application rod 1222 to make room for opening the hot pressing port 101 below.
In the present embodiment, referring to fig. 13, the lifting mechanism 140 includes a lifting driving member 141 and a lifting driving member support 142. The lowermost lifting driving member bracket 142 is fixed on the bottom plate 1113, the rest lifting driving member brackets 142 are fixed on the hot pressing plate assembly mounting plates 116 at different height positions, the lifting driving member 141 is installed on the lifting driving member bracket 142, and the movable end of the lifting driving member bracket 142 is fixedly connected with the lifting driving member bracket 142 above the lifting driving member 141; the lifting driving element 141 can extend out of the movable end to push away the two connected hot pressing plate assembly mounting plates 116 to open the hot pressing port 101, and can also retract into the movable end to pull close the two connected hot pressing plate assembly mounting plates 116 to close the hot pressing port 101, and the lifting driving element can generate quantized thrust or pulling force by matching with the output proportional valve, and in the hot pressing process, the quantized thrust generated by the lifting driving element 141 can offset the gravity of the upper hot pressing module 130.
In this embodiment, the lifting driving member 141 is a cylinder, and the lower the position of the cylinder is, the larger the gravity of the upper hot pressing module 130 that needs to be loaded is, and therefore, the plurality of cylinders generate different thrusts respectively with the cooperation of the electric proportional valve, and from top to bottom, the thrusts generated by the plurality of cylinders can be gradually increased to offset the gravity of the hot pressing module 130 from top to bottom.
In the present embodiment, referring to fig. 14 and 15, the short circuit testing mechanism 150 is fixed outside the hot pressing port 101, referring to fig. 16, the short circuit testing mechanism 150 includes a short circuit testing mounting plate 151, a short circuit testing driving member 152, a probe mounting plate 153, a probe 154, a tab backing plate 155 and a tab backing plate mounting plate 156; short circuit test mounting panel 151 is fixed on the lateral surface of the last hot pressing board subassembly 132 of hot pressing module 130 on the house, and short circuit test driving piece 152 is fixed down on short circuit test mounting panel 151, and probe mounting panel 153 is fixed at the expansion end of short circuit test driving piece 152, and probe 154 has two negative poles, positive pole, all installs and stretch into in hot pressing port 102 on probe mounting panel 153, and utmost point ear pad mounting panel 156 is fixed down on the side of adjusting well with short circuit test mounting panel 151 homonymy of hot pressing module 130's lower hot pressing board subassembly 131, and utmost point ear pad 155 is installed and is stretched into down electric core contact surface 13211 on utmost point ear pad mounting panel 156, and short circuit test mechanism 150 sets up in the hot pressing port, external connection short circuit tester carries out the resistance value measurement to electric core 200 during hot pressing.
In the present embodiment, referring to fig. 17, the dust removing mechanism 160 includes a dust removing bracket 161, a dust removing driving module 162, and an air knife module 163.
The dust removing bracket 161 includes a dust removing driving member mounting plate 1611, a dust removing mechanism mounting plate 1612 and a sliding sleeve 1613, and the dust removing bracket 161 is used for mounting the dust removing driving module 162 and fixing itself together with the whole dust removing mechanism 160 at a predetermined position outside each hot pressing port 101 of the cell hot pressing device 100. And in the exit state, no part of the dust removing mechanism 160 enters the hot nip.
Specifically, dust removal drive module 162 is sharp actuating mechanism, including dust removal driving piece 1621, dust removal driving piece mounting panel 1622, slide bar 1623 and the slide bar baffle 1624 of being connected with the free end of slide bar 1623 that is connected with dust removal driving piece 1621's stiff end. The dust removal drive mounting plate 1622 is used to secure the dust removal drive 1621 to the dust removal bracket 161.
Further, the sliding rod 1623 is movably connected to the sliding sleeve 1613, so as to stably lift the air knife module 163, and the driving stroke of the dust removal driving member 1621 is greater than or equal to the length of the upper cell contact surface 13111 of the contact cell body 210 on the upper hot pressing plate 1311 and the length of the lower cell contact surface 13211 of the bearing cell body 210 on the lower hot pressing plate 1321, so as to ensure that the air knife module 163 can remove dust from the whole upper cell contact surface 13111 and the whole lower cell contact surface 13211.
Further, the air knife module 163 is slidably connected to the movable end of the dust removal driving module 162, and the dust removal driving module 162 can drive the air knife module 163 to enter the hot pressing port 101 and return in a direction parallel to the plate surfaces of the upper hot pressing plate 1311 and the lower hot pressing plate 1321 of the hot pressing module 130. When reciprocating in the hot-pressing port 101, the air knife module 163 can scrape the dust adhered to the upper cell contact surface 13111 of the upper hot-pressing plate 1311 and the lower cell contact surface 13211 of the lower hot-pressing plate 1321, and can suck away the dust synchronously; and the dust removal operation can be arranged in the gap time between the discharged hot-pressed battery cell and the feeding of the non-hot-pressed battery cell at each time under the control of the control system, or the dust removal operation can be carried out in the pause time of the hot-pressing operation at regular or irregular intervals according to the requirement.
Further, the air knife module 163 includes a pushing plate 1631 and two air knife assembly driving members 1632 respectively fixed at two horizontal ends of the pushing plate 1631. The air knife assembly driving member 1632 has two movable ends opposite to each other, each movable end is fixed with a clamp 1634, and the air knife module 163 further includes two sets of air knife assemblies 1633 fixed between the two horizontally arranged clamps 1634. The air knife assembly driving member 1632 is used to apply an adjustable force to the upper and lower air knife assemblies 1633 under the cooperation of the external controller, so that the upper and lower air knife assemblies 1633 move up and down relatively or press outwards.
In the present embodiment, the air knife module 163 includes two sets of upper and lower air knife assemblies 1633, please refer to fig. 19, the air knife assemblies 1633 include an air duct 16331 and a scraper 16332; the air duct 16331 comprises a barrel body, an air inlet, an air outlet, a clamping handle and a fastener fixing hole, and the scraper 16332 comprises a cutter body, a cutting edge and a fastener through hole; wherein the clamp holder is adapted to the clamp 1634 for fixing the air duct 16331; air duct 16331 is a hollow duct body and is opened along the side direction of the duct body length direction, the length and the height of the air duct can be put into the scraper 16332, the scraper 16332 can be fixed in the opening of the air duct 16331 through a fastener, and the air knife component 1633 is used for scraping the upper hot pressing plate cell contact surface 13111 and the lower hot pressing plate cell contact surface 13211 and blowing away dust in the external air exhaust.
The two sets of air knife assemblies 1633 can move up and down relatively to approach the hot pressing port 101 without obstruction, and when in the hot pressing port 101, the two sets of air knife assemblies 1633 move up and down relatively to expand and then can respectively cling to the board surfaces of the upper hot pressing board 1311 and the lower hot pressing board 1321 and apply pressure.
Further, the air knife module 163 further includes two sets of suspension assemblies 1635, please refer to fig. 18, each set of suspension assembly 1635 includes a suspension hanger 16351, a suspension hanger mounting member 16352, a air knife assembly sliding set 16353 and an air knife assembly driving member mounting plate 16354, the suspension hangers 16351 are horizontally spaced and fixed at two vertex angles of the pushing plate 1631 for connecting and supporting the air knife assembly driving member mounting plate 16354, and the air knife assembly driving member mounting plate 16354 is used for fixedly mounting the air knife assembly driving member 1632. Two sets of suspension hanging assemblies 1635 suspend the two air knife assembly driving members 1632 and the upper and lower air knife assemblies 1633 connected to the two air knife assembly driving members 1632 on the pushing plate 1631, and when the air knife module 163 enters the hot pressing port 101, the two air knife assemblies 1633 are symmetrically spread by the air knife assembly driving members 1632 to press the upper hot pressing plate 1311 and the lower hot pressing plate 1321, and the positions of the air knife assembly driving members 1632 can be adaptively floated. The sliding rail of the air knife assembly sliding group 16353 is fixed on the end surface of the pushing plate 1631, and the sliding block of the air knife assembly sliding group 16353 is fixed below the air knife assembly driving member mounting plate 16354. The sliding assembly 16353 enables the mounting plate 16354 to slide smoothly and reliably, so that the position of the driving member 1632 can float smoothly and reliably.
After the dust removing mechanism 160 is assembled and in the dust removing operation, on the air knife component 1633 matched with the upper hot pressing plate 1311, the cutting edge of the scraper 16332 faces upwards and is higher than the highest point of the cylinder; on the air knife assembly 1633 matched with the lower hot pressing plate 1321, the cutting edge of the scraper 16332 faces downwards and is lower than the lowest point of the cylinder body, so that the cutting edge is ensured to be tightly attached to the plate surfaces of the upper hot pressing plate 1311 and the lower hot pressing plate 1321 instead of the cylinder body, and the cutting edge meets the two-way scraping requirement, so that dust can be scraped by the cutting edge when the air knife module 163 moves back and forth in the hot pressing port 101.
Further, the length of the scraper 16332 and the air inlet at which it is located are both greater than or equal to the width of the upper cell contact surface 13111 and the lower cell contact surface 13211. The scraper is made of a self-lubricating flame-retardant material with heat resistance, wear resistance and aging resistance; the air knife assembly 33 is removable from the clamp 1634 and the knife 16332 is removable from the barrel to facilitate replacement of the knife.
The dust removal mechanism 160 of the embodiment realizes automatic dust removal operation, can remove dust in time in the production process of the hot-pressing device 100, improves the dust removal efficiency, does not delay the hot-pressing production time, and does not reduce the hot-pressing production efficiency. The problems that the hot-pressing production time is delayed and the dust removal efficiency is low due to the fact that manual dust removal is adopted are solved.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not intended to limit the present invention, and any modifications, equivalents, improvements, etc. made within the spirit and principles of the present invention should be included within the scope of the present invention.

Claims (10)

1. A cell hot-pressing device comprises a frame assembly and a plurality of hot-pressing modules erected in the height direction of the frame assembly, wherein each hot-pressing module comprises a lower hot-pressing plate assembly and an upper hot-pressing plate assembly, each lower hot-pressing plate assembly comprises a lower hot-pressing plate, each upper hot-pressing plate assembly comprises an upper hot-pressing plate, spaces between the upper hot-pressing plate and the lower hot-pressing plates which are arranged in parallel up and down form a hot-pressing opening, each upper hot-pressing plate is provided with an upper cell contact surface for contacting a cell, and each lower hot-pressing plate is provided with a lower cell contact surface for bearing the cell; the device is characterized in that the electric core hot-pressing device further comprises a driving mechanism, a lifting mechanism, a short circuit testing mechanism and a dust removing mechanism;
the driving mechanism comprises a hot-pressing driving assembly, a force application assembly and a force transmission assembly; the hot pressing driving component drives the force application component, and the force transmission component can transmit the pressure of the force application component to the hot pressing module closest to the driving mechanism;
the lifting mechanism is used for driving the hot pressing module to lift so as to open or close the hot pressing port, and the lifting mechanism can counteract the gravity of the hot pressing module above the lifting mechanism under the coordination of the output proportional valve in the hot pressing process;
the short circuit testing mechanism is arranged in the hot pressing port and used for detecting the resistance value of the battery cell;
the dust removal mechanism is arranged outside the hot pressing port and used for scraping and removing dust of the upper battery cell contact surface and the lower battery cell contact surface and synchronously sucking away dust when the battery cells are not in the hot pressing port or the feeding clearance time is out.
2. The cell core hot-pressing apparatus of claim 1, wherein the frame assembly comprises a frame, a hot-pressing driving member support, a plurality of sliding groups, a plurality of sliding plates, a force application plate, and a plurality of hot-pressing plate assembly mounting plates; the frame comprises a top plate, an upright post, a bottom plate and a nut, and the upright post is vertically fixed between the top plate and the bottom plate through the nut; the sliding group comprises a sliding rail and sliding blocks, the sliding rail is vertically fixed on the upright post, and the sliding blocks are sleeved on the sliding rail in a sliding manner; the sliding plate is fixed among the sliding blocks at the same height position; the force application plate is fixed on the uppermost sliding plate, the hot pressing plate assembly mounting plates are respectively mounted on the sliding plates at other height positions, and the hot pressing plate assembly mounting plates are used for mounting the lower hot pressing plate assembly on the hot pressing plate assembly mounting plates and mounting the upper hot pressing plate assembly on the hot pressing plate assembly mounting plates.
3. The cell hot-pressing apparatus according to claim 2, wherein the hot-pressing driving assembly includes a hot-pressing driving member, a transmission, a coupling, a bearing set, and a lead screw, the hot-pressing driving member is mounted on the hot-pressing driving member support, the transmission is in transmission connection with the hot-pressing driving member, the lead screw is coaxially coupled to a rotating shaft of the transmission through the coupling, and the lead screw is fixed to the top plate through the bearing set.
4. The cell core hot-pressing device according to claim 3, wherein the force application assembly includes a nut and a force application rod, the nut and the force application rod are fixed on the force application plate, the nut is in threaded connection with the lead screw, and the lead screw rotates to apply force to a combination of the nut, the force application plate and the force application rod.
5. The cell hot-pressing device according to claim 4, wherein the force transfer assembly comprises a force transfer bracket, a force transfer horizontal sliding set, a force transfer displacement driving piece, a force transfer bracket, a force transfer lifting sliding set, a force transfer supporting plate, a force transfer rod buckle, a force transfer elastic piece, a force transfer displacement sensor set and a limiting column; the force transmission support is arranged on a hot pressing plate assembly mounting plate at the top of the frame assembly, a slide rail of the force transmission horizontal sliding group is fixed on the force transmission support, the force transmission bracket is fixed on a slide block of the force transmission horizontal sliding group, a slide rail of the force transmission lifting sliding group is fixed on the force transmission bracket, the force transmission supporting plate is fixed on the slide block of the force transmission lifting sliding group, the force transmission rod is arranged on the force transmission supporting plate through the force transmission rod buckle, and the force transmission elastic part is clamped between the force transmission supporting plate and the force transmission bracket and used for supporting the force transmission supporting plate and the force transmission rod; the force transmission displacement driving piece is arranged on the force transmission bracket, and the power output end of the force transmission displacement driving piece is fixedly connected with the force transmission bracket; the outer side surface of the force transmission support is provided with two force transmission displacement sensor groups which are arranged at intervals and are respectively used for detecting the sliding start position and the sliding stop position of the force transmission supporting plate, two ends of the force transmission support are respectively provided with a limiting column used for limiting the sliding range of the force transmission supporting plate, the force transmission displacement driving piece is used for driving the force transmission supporting plate to carry the force transmission rod to move so that the force transmission rod is aligned with the force application rod, and the force application rod is kept away from after being moved away so that the force application rod can touch the hot pressing plate assembly mounting plate.
6. The cell core hot-pressing device according to claim 2, wherein the upper hot-pressing plate assembly comprises the upper hot-pressing plate, an electric heating unit, a heat insulation plate, a back plate and a pressure sensor which are sequentially stacked upwards, and the pressure sensor is fixed on the lower surface of the hot-pressing plate assembly mounting plate;
the lower hot-pressing plate assembly comprises a lower hot-pressing plate, an electric heating unit and a heat insulation plate which are sequentially stacked downwards, the heat insulation plate is fixed on the upper surface of the hot-pressing plate assembly mounting plate, and the lower hot-pressing plate assembly at the lowest part of the hot-pressing device is fixed on the bottom plate through the heat insulation plate.
7. The cell hot-pressing apparatus according to claim 2, wherein the lifting mechanism includes a lifting driving member and a lifting driving member support, the lifting driving member is fixed to the hot-pressing plate assembly mounting plate below through the lower lifting driving member support, the movable end of the lifting driving member is fixed to the hot-pressing plate assembly mounting plate above through the upper lifting driving member support, the lifting driving member can extend out of the movable end to push away the two connected hot-pressing plate assembly mounting plates to open the hot-pressing opening, and can also retract into the movable end to pull close the two connected hot-pressing plate assembly mounting plates to close the hot-pressing opening, the lifting driving member is matched with the proportional valve to generate a quantized pushing force or pulling force, and during the hot-pressing process, the quantized pushing force generated by the lifting driving member can counteract the gravity of the hot-pressing assembly.
8. The cell hot pressing apparatus according to claim 1, wherein the short circuit testing mechanism includes a short circuit testing mounting plate, a short circuit testing driving member, a probe mounting plate, a probe, a tab backing plate, and a tab backing plate mounting plate, the short circuit testing mounting plate is fixed on the outer side surface of the upper hot pressing plate assembly of the hot pressing module, the short circuit testing driving member is fixed on the short circuit testing mounting plate downward, the probe mounting plate is fixed at the movable end of the short circuit testing driving member, the probe has a negative electrode and a positive electrode, and is installed on the probe mounting plate and extends into the hot pressing port, the tab backing plate mounting plate is fixed on the hot pressing module downward, the hot pressing plate assembly and the short circuit testing mounting plate are aligned with each other on the same side, the tab backing plate is installed on the tab backing plate mounting plate and extends into the lower cell contact surface, the short circuit testing mechanism is disposed in the hot pressing port, and is externally connected to the short circuit tester for measuring the resistance value of the cell during hot pressing.
9. The cell hot-pressing device according to claim 1, wherein the dust removing mechanism includes a dust removing bracket, a dust removing driving module and an air knife module, and the dust removing bracket is used for mounting the dust removing driving module and fixing the dust removing driving module and the dust removing mechanism together with the whole dust removing mechanism at a predetermined position outside each hot-pressing opening of the cell hot-pressing device; the air knife module is connected with the movable end of the dust removal driving module in a sliding manner, and the dust removal driving module can drive the air knife module to enter a hot pressing port and return along a direction parallel to the plate surfaces of the upper hot pressing plate and the lower hot pressing plate of the hot pressing module; when reciprocating in the hot pressing mouth, the air knife module can scrape go up the hot pressboard go up the electric core contact surface with the hot pressboard down the dust of adhesion on the electric core contact surface to can suck away the dust in step.
10. The cell hot pressing apparatus of claim 9, wherein the air knife module comprises an air knife assembly, and the air knife assembly comprises an air duct and a scraper; the dryer is the cavity barrel and follows barrel length direction's side direction opening, and its length, height can put into the scraper, the scraper can be fixed through the fastener in the opening of dryer, the air knife subassembly is used for the spatula go up hot pressboard electricity core contact surface with hot pressboard electricity core contact surface down, the dust is blown away in the confession ventilation simultaneously.
CN202221848233.3U 2022-07-16 2022-07-16 Electricity core hot press unit Active CN218568927U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202221848233.3U CN218568927U (en) 2022-07-16 2022-07-16 Electricity core hot press unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202221848233.3U CN218568927U (en) 2022-07-16 2022-07-16 Electricity core hot press unit

Publications (1)

Publication Number Publication Date
CN218568927U true CN218568927U (en) 2023-03-03

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Application Number Title Priority Date Filing Date
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116039146A (en) * 2023-03-28 2023-05-02 宁德时代新能源科技股份有限公司 Pressure control method and device for hot press device, controller and storage medium
CN116749572A (en) * 2023-05-31 2023-09-15 厦门合南道智能科技有限公司 Cell pressurizing mechanism and control method

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116039146A (en) * 2023-03-28 2023-05-02 宁德时代新能源科技股份有限公司 Pressure control method and device for hot press device, controller and storage medium
CN116039146B (en) * 2023-03-28 2023-08-15 宁德时代新能源科技股份有限公司 Pressure control method and device for hot press device, controller and storage medium
CN116749572A (en) * 2023-05-31 2023-09-15 厦门合南道智能科技有限公司 Cell pressurizing mechanism and control method

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