77 results about "Plastic cement" patented technology

The invention provides an end cover assembly, an energy storage device and electric equipment. The end cover assembly comprises a top cover, the top cover is provided with a first surface and a second surface which are oppositely arranged, the top cover is further provided with a groove, and the groove is located in the second surface; and the lower plastic cement is arranged on the second surface side of the top cover, the lower plastic cement comprises a plastic cement body and a convex column, the convex column is convexly arranged on one side, facing the top cover, of the plastic cement body, and the convex column is accommodated in the groove and is connected with the top cover.

According to the lower plastic, the end cover assembly, the energy storage device and the electric equipment provided by the invention, the lower plastic can be prevented from being deformed when being impacted by the electrolyte flowing at a high speed, so that the use reliability of the energy storage device can be improved. The lower plastic cement comprises first lower plastic cement and second lower plastic cement, and the first lower plastic cement and the second lower plastic cement are sequentially arranged in the length direction of the lower plastic cement; the first lower plastic comprises a first main body part, a first boss and a second boss, the first main body part is provided with a liquid inlet hole, the liquid inlet hole penetrates through the first main body part, and the first boss and the second boss are fixedly connected to the first face of the first main body part, protrude relative to the first face and are used for abutting against a battery cell of the energy storage device. The first boss is located on the side, facing the second lower plastic, of the liquid inlet hole and spaced from the liquid inlet hole, and the second boss is located on the side, away from the first boss, of the liquid inlet hole and spaced from the liquid inlet hole.

The utility model belongs to the technical field of lithium ion batteries, and particularly relates to a lithium battery cover which comprises an aluminum plate, a positive pole module, a negative pole module, an anti-explosion valve and lower plastic cement, the positive pole module and the negative pole module are fixed on the aluminum plate in an injection molding and riveting mode, the aluminum plate is connected in an insulating mode, a liquid injection hole is formed in the aluminum plate, and the anti-explosion valve is arranged in the liquid injection hole. The anti-explosion valve is installed on the aluminum plate, and a reinforcing mechanism is arranged at the bottom of the aluminum plate. On the premise of not increasing the weight of the cover plate and the occupied space, the strength of the battery cover plate is improved, the deformation of the battery cover is reduced, unstable valve opening pressure caused by deformation of the cover plate of the anti-explosion valve is prevented, and the stability of the cover plate is improved.

The utility model discloses a middle frame assembly and electronic equipment, and relates to the technical field of electronic equipment. The middle frame assembly comprises a plurality of borders and a middle plate, the borders are titanium borders or titanium alloy borders, and the borders are opposite in an end-to-end mode to form an annular structure. The material of the middle plate is different from that of the plurality of frames, and the middle plate is located in the annular structure and is connected with the plurality of frames through plastic cement. The frame plays a main role in supporting the internal space of the whole electronic equipment, the frame is a titanium metal frame or a titanium alloy frame, certain structural strength is guaranteed while the weight is reduced, and the middle plate plays an auxiliary role in supporting the internal space of the whole electronic equipment. Compared with the frame, the electronic equipment can adopt the middle plate which is lighter in weight and weaker in structural strength and is made of other materials, so that the middle frame assembly is lighter in overall weight and higher in structural strength, and two parameters of strength and weight are considered.

The utility model relates to the technical field of automobile projection lenses, in particular to a large-aperture three-piece projection lens. A large-aperture three-piece projection lens sequentially comprises a first lens, a second lens, a third lens and a spatial light modulator from an image side to an object side along an optical axis direction, the first lens is a meniscus lens with positive focal power and long focal length, the second lens is a concave lens with negative focal power, and the third lens is a convex lens with negative focal power. The third lens is a convex lens with positive focal power; the two diaphragms are respectively a first diaphragm arranged on the object side surface of the first lens and a second diaphragm arranged on the image side surface of the second lens. According to the utility model, the three-piece structure is adopted, and the combination of the heat-resistant plastic cement and the glass lens is adopted, so that good thermal stability is realized, no special requirement on temperature characteristics exists, and a high-quality imaging effect can be realized. The whole projection lens has a large aperture and a long back focus, meets the spatial structure requirement of a DLP optical system, and has a very high overall lighting effect.

The utility model discloses a battery cover plate assembly and a battery cell, and relates to the technical field of battery manufacturing, the cover plate assembly comprises a pole, an upper plastic, a light cover plate, a sealing ring and a lower plastic, wherein the pole column comprises a conductive column and an aluminum block, and the conductive column comprises a conductive column main body; the aluminum block, the upper plastic cement, the light cover plate and the lower plastic cement are all provided with through holes and are sequentially and tightly sleeved on the conductive column main body from top to bottom through the through holes, and the inner side walls of the upper plastic cement, the light cover plate and the lower plastic cement are in sealed and insulated contact with the conductive column main body through sealing rings; the light cover plate and the lower plastic are matched and jointly extrude the sealing ring to form a step structure, the lower plastic boss and the lower surface of the light cover plate are in close contact with the upper surface of the first step of the sealing ring, a lower plastic groove is formed in the bottom face of the lower plastic, and a material expansion space is formed between the inner side wall of the lower plastic groove and the outer side wall of the first step of the sealing ring. According to the utility model, the extreme safety of the battery cell can be realized.

The utility model discloses a high-speed motor shell and stator integrated molding structure and a high-speed motor, the high-speed motor shell and stator integrated molding structure comprises a stator part, a wire protection cover, a bearing chamber insert and a plastic cement shell, a plurality of coils are arranged on the stator part along the circumferential direction, the plurality of coils are encircled to form an assembling cavity, and the assembling cavity is provided with a plurality of coils. The assembling cavity extends along the length direction of the stator component; the wire protecting cover covers the end surface of the stator component and is used for covering the coil; a via hole is formed in the wire protecting cover and is opposite to the inlet of the assembly cavity; the bearing chamber insert is arranged on one side, deviating from the stator component, of the wire protecting cover; an assembly chamber is arranged on the bearing chamber insert; the assembling chamber, the via hole and the assembling cavity are sequentially communicated, are coaxially arranged and are used for assembling a rotor of the high-speed motor; the plastic shell is integrally formed on the end face of the stator component, the outer circle face of the wire protecting cover and the outer circle face of the bearing chamber insert in an injection molding mode. And the processing flow is simplified and the product structure is optimized by utilizing an integrated forming mode, so that heat dissipation and performance improvement are facilitated.

The utility model provides an end cover assembly, an energy storage device and electric equipment. The end cover assembly can prevent laser from burning upper plastic. The end cover assembly comprises a cover plate, a pole, upper plastic, a pressing ring and a welding part. The cover plate is provided with an assembling hole penetrating through the first surface and the second surface. The pressing ring is located on the side, away from the second surface, of the first surface, a pressing ring body of the pressing ring is provided with a matching hole penetrating through the third surface and the fourth surface, and the protruding part of the pressing ring is arranged on the hole wall face of the matching hole. The pole penetrates through the assembling hole and the matching hole, an opening of a groove of the pole is located in the surface, deviating from the first surface, of the pole, the groove penetrates through the peripheral side face of the pole, and the protruding part is installed in the groove and welded to the groove wall face of the groove; the welding part is positioned on one side, facing the fourth surface, of the third surface, is positioned on one side, facing the groove wall surface of the groove, of the protruding part, and is connected to the pole; and the upper plastic cement is positioned on one side, deviating from the fourth surface, of the third surface, penetrates through the assembly hole, is arranged around the pole column and is also positioned between the pole column and the cover plate.

The utility model provides a road garbage can which comprises a cement outer can and an inner can arranged in the cement outer can. Wherein a cover plate is arranged at an end opening of the top end of the cement outer barrel, and a packaging cover is movably connected to the cover plate; a water leakage mechanism is arranged at the bottom of the cement outer barrel and used for draining rainwater; and a cement base is movably arranged at the bottom of the cement outer barrel. According to the road garbage can provided by the utility model, the cement model integrated plastic road garbage can is adopted, compared with a conventional road garbage can bottom steel structure, the cement model integrated replacement cost is low, a water leakage mechanism in the cement garbage can model can drain rainwater, and the packaging cover can be overturned and packaged on the cement garbage outer can; the inner barrel can be installed in an independent space, rainwater can be prevented from entering the cement garbage can model, and the cement garbage can model has a better anti-corrosion effect.

The utility model relates to the technical field of vehicle-mounted audio-video equipment, in particular to a vehicle-mounted DVD (Digital Video Disk) machine core plastic cement main frame, which comprises a main frame main body formed by plastic cement through injection molding, a loading motor mounting seat for mounting a loading motor, a loading gear shaft for mounting a loading gear set, a feeding motor mounting seat for mounting a feeding motor and a feeding gear shaft for mounting a feeding gear set are integrally formed on the main frame main body in an injection molding manner; the motor base and the gear shaft are integrated, the motor base and the gear shaft do not need to be additionally installed, the motor base and the gear shaft do not need to be purchased independently, connecting pieces such as fastening screws needed in the installation process of the motor base and the gear shaft can be omitted, the number of overall parts is small, and cost is low. And moreover, the processes such as spin riveting required in the mounting process of the motor seat and the gear shaft can be omitted, the whole assembly process is more convenient, the overall production cost can be reduced, and the overall production and assembly efficiency can be improved.

The utility model provides a battery cell. The battery cell comprises a cover plate body, the first lower plastic cement and the second lower plastic cement are arranged on the first side, facing the electrode assembly, of the cover plate body, and the side, facing the electrode assembly, of the first lower plastic cement is provided with a first combination part; the first pole penetrates through the cover plate body and the first lower plastic cement; the second pole penetrates through the cover plate body and the second lower plastic cement; the support is clamped between a first electrode assembly and a second electrode assembly which are adjacently stacked in the electrode assemblies, the support is provided with an extending end extending out of the first electrode assembly and the second electrode assembly, and the extending end is matched with the first combining part to prevent the first lower plastic from rotating around the first pole. The utility model aims to provide a battery cell, a battery pack and an electronic device so as to at least prevent a first lower plastic from rotating.

The utility model discloses a lower plastic cement structure of a battery, the lower plastic cement structure comprises a lower plastic cement body and grooves arranged at two ends of the lower plastic cement body, the grooves are provided with through holes for pole columns to pass through, the grooves are rotatably connected with a cover body, and one end of the cover body far away from a rotating part is fixedly connected with a plurality of limiting components. The limiting assembly comprises buckles which are symmetrically arranged, clamping grooves allowing the buckles to be inserted therein are formed in the ends, away from the rotating part, of the grooves, and the buckles have elastic deformation potential energy continuously attached to the inner side walls of the clamping grooves; the cover body and the lower plastic body form a whole, so that the whole lower plastic structure is more convenient to carry and cannot be lost, and the use efficiency is guaranteed.

The application discloses a mine-used roadway cement concrete mixer and a construction process thereof, and belongs to the technical field of mine-used roadway cement pavement construction. The mixer comprises a running chassis, a power system and an aggregate bin system. The aggregate bin system is arranged on the running chassis and is used for storing and conveying aggregates. The mixer further comprises a powder bin system and a mixing and conveying system. The powder bin system is arranged on the running chassis and is used for storing and conveying powders. The mixing and conveying system is used for receiving the aggregates conveyed by the aggregate bin system and the powders conveyed by the powder bin system, and then stirring and conveying the aggregates and the powders to a receiving port of a slip-form paver. The mine-used roadway cement concrete mixer and the construction process thereof can produce plastic cement concrete on site, continuously supply the slip-form paver with the cement concrete, and ensure the quality of the cement concrete produced on site and the quality of the pavement, so that the cement slip-form paver is provided with a complete set of equipment and the requirements of mine-used roadway cement pavement construction are met.

The utility model provides a battery cell and a battery module, and the battery cell comprises a shell provided with an accommodating cavity; the top cover assembly is arranged on the shell in a covering mode, and the top cover assembly comprises lower plastic cement; the core bag is arranged in the containing cavity, the side, facing the top cover assembly, of the core bag is provided with a protruding part, a step structure is formed between the protruding part and the edge of the core bag, the step structure is provided with a step face extending in the radial direction of the core bag, and the end, close to the core bag, of the lower plastic is used for abutting against the step face. By applying the technical scheme of the utility model, the technical problem that the connecting sheet is easy to break can be improved.

The invention belongs to the technical field of batteries, and discloses a battery which comprises a pole group, a cover plate assembly and a shell, the pole group is connected with a protruding part and a tab, and the protruding part and the tab are arranged at the end part of the pole group in a first direction; the cover plate assembly comprises a cover plate body, a pole and first plastic, the cover plate body is connected with a protective cover and a protective side plate, the pole is arranged on the cover plate body, the surface, away from the pole group, of the protective cover protrudes out of the surface, away from the pole group, of the pole in the first direction, and the first plastic is arranged between the cover plate body and the pole group. The first plastic cement is provided with a first connecting groove and a second connecting groove, the protruding part is clamped in the first connecting groove, and one end, facing the pole group, of the pole column is clamped in the second connecting groove; the shell and the cover plate body are connected and enclose to form a space for accommodating a pole group; the first direction is the height direction of the cover plate body. Therefore, the protruding part can improve the capacity of the battery and protect the pole.

The utility model relates to the technical field of batteries, and provides a power battery top cover insulation structure which comprises an upper top cover, lower plastic cement, a pole assembly, two groups of side clamping plates, a central elastic clamping ring, a heat dissipation plate and an anti-impact assembly, the two groups of side clamping plates are fixedly arranged on two sides of the lower plastic cement, and the central elastic clamping ring is arranged on the upper top cover. The upper top cover is clamped with the lower plastic through the side clamping plate, the central elastic clamping ring is arranged on the lower side of the upper top cover, the pole assemblies are fixedly installed on the two sides of the lower plastic, the upper ends of the pole assemblies penetrate through the side clamping plate and are arranged on the upper top cover, the heat dissipation plate is arranged in the middle of the lower plastic, and the anti-impact assembly is fixedly installed on the lower side of the lower plastic. The connector is simple in structure and convenient to use, the upper top cover and the lower plastic can be quickly connected, and the upper top cover and the lower plastic cannot fall off after being connected and working for a long time.

The utility model discloses a vertical TYPE-C connector, which comprises a middle piece, upper plastic cement, an upper insertion piece, lower plastic cement, main body plastic cement, a lower insertion piece, a shell, an insertion block, a cover plate, a side insertion block, a locking groove and a locking elastic piece, the upper plastic cement is sleeved in through holes symmetrically formed in the top of the middle piece, and the upper insertion piece is arranged in the upper plastic cement; according to the utility model, the upper plastic and the lower plastic respectively support the upper insertion piece and the lower insertion piece, the middle piece is matched for preliminary limiting and then is inserted into the main body plastic to form a connecting structure of the connector, and then the locking groove and the locking elastic piece are matched with each other for locking and limiting, so that the whole structure is simple and easy to assemble; the injection molding processing requirement in the later period of production is reduced, the later maintenance and overhaul process is simplified while the production cost is reduced, the cover plate is connected to the shell in a sleeving mode through the additionally-arranged inserting blocks and the additionally-arranged side inserting blocks for sealing protection, damage to the connector due to falling of the cover plate is prevented, and the practicability of the product is improved.

The utility model discloses a gear motor with a motor and a gear box axis biased, and relates to the technical field of gear motors. The device comprises a connecting plate, one side of the connecting plate is provided with an inner tooth shell, and the other side of the connecting plate is provided with a driving motor; an eccentric assembly is arranged on one side of the connecting plate and comprises a first gear installed at the output end of the driving motor, a second gear engaged with one side of the first gear and a third gear engaged with one side of the second gear. According to the utility model, the structure is compact, the maximum radial space of the motor pins is utilized, so that the radial size of the whole product is minimum, the axis of the motor and the output shaft of the output-stage planetary gearbox are offset and not concentric, but the planetary output shaft is ensured to still extend out of the center of the whole product, and the metal stretching spacer bush is arranged in the middle; and the friction force is smaller than that of plastic cement after lubricating oil is added by utilizing the smoothness of the metal surface, so that the transmission efficiency is improved.

The utility model provides a battery top cover structure, which is characterized by comprising a top cover piece, a top cover plate, a top cover plate and a top cover plate, and second through holes are formed in two sides of the surface of the top cover plate; the upper plastic is mounted at the second through hole; the lower plastic is located below the top cover piece, a third through hole corresponding to the second through hole of the top cover piece is formed in the lower plastic, and a connecting piece is arranged below the third through hole of the lower plastic; the pole column is mounted on the upper plastic cement, and the lower end of the pole column penetrates through the second through hole and the third through hole to be welded and fixed with the connecting sheet; and the sealing ring is arranged at the third through hole of the lower plastic cement, and the sealing ring seals a gap at the matched part of the pole, the connecting sheet and the top cover sheet. The sealing ring is arranged, so that the pole, the connecting sheet, the top cover sheet, the upper plastic and the upper plastic around the sealing ring are tightly attached, and the pole and the connecting sheet are in contact with each other through bounce generated by extruding the sealing ring after being welded, so that the yield of the resistor is improved.

The utility model discloses a board end connector, which comprises a shell (1), inner plastic cement (2) and a terminal structure (3), the terminal structure (3) is positioned in the shell (1) and is fixedly mounted through the inner plastic cement (2), the terminal structure (3) comprises a first terminal (31) and a second terminal (32), the first terminal (31) comprises a contact part (311) and a mounting part (312), and the second terminal (32) comprises a contact part (311) and a mounting part (312). And the mounting part (312) of the first terminal (31) is movably connected with the second terminal (32), so that the first terminal (31) has a swing amount relative to the second terminal (32). Through the above mode, the female end connector can actively adapt to the coaxiality deviation of the female end connector, prevents stress from being concentrated on a single contact point, enhances the elastic deformation capability, is high in compatibility, prolongs the service life, and optimizes the high-frequency application.

The utility model discloses an assembling structure of upper plastic cement and a cover plate of a battery and the battery, which belong to the technical field of battery manufacturing and comprise a pole, lower plastic cement and a sealing ring which are sleeved on the pole, the cover plate and the upper plastic cement which are laminated on the lower plastic cement and are provided with a limiting groove, and a limiting piece which is arranged on the upper plastic cement and is matched with the limiting groove, the sealing ring is respectively connected with the pole and the lower plastic, and the cover plate and the upper plastic are respectively sleeved on the pole; the limiting piece is embedded into the limiting groove, and the limiting piece is gradually shrunk in the stacking direction. According to the utility model, the technical effects of improving the sealing performance and improving the safety are achieved.

The utility model provides a battery top cover and a square battery, and the battery top cover comprises a cover plate, upper plastic, a pole, a connecting sheet and a sealing ring, a first mounting groove is formed in the top surface of the cover plate; the upper plastic cement is mounted in the first mounting groove, and a second mounting groove is formed in the upper plastic cement; the pole is mounted in the second mounting groove, and a first connecting hole is formed in the pole; the connecting piece comprises a connecting piece body and a boss, the connecting piece body is located below the cover plate, the boss is arranged on the connecting piece body, and the boss penetrates through the cover plate and the upper plastic and is connected with the first connecting hole; the sealing ring is arranged on the boss in a sleeving mode and located between the boss and the cover plate. The lug is connected with the first connecting hole through the boss, so that the tab can be welded in larger areas on the two sides of the boss on the connecting sheet body, the welding interference is avoided, the size of the connecting sheet can be reduced, and the cost is reduced.

The utility model discloses a metal connector terminal implantation injection molding product structure comprising a metal insert, one end of the metal insert is provided with a plastic cement part through injection molding, and two sides of the plastic cement part close to the other end of the metal insert are provided with openings. According to the utility model, when the mold is opened, the metal inserts at the two openings and the external metal insert are always kept straight, so that the stress generated by the plastic part to the metal inserts is reduced, and the inclination phenomenon of the metal inserts due to stress release after the mold is opened is further avoided.

The utility model discloses a battery cover plate which comprises a cover plate body provided with two first through holes; the cover plate lower plastic cement is arranged on the cover plate body, two second through holes are formed in the cover plate lower plastic cement, and the second through holes and the first through holes are coaxially arranged; the cathode post comprises a cathode lower post, cathode post upper plastic cement, a cathode post cover plate, a ceramic piece and a first ceramic ring, one end of the cathode lower post is attached to the cover plate lower plastic cement, the other end of the cathode lower post sequentially penetrates through the second through hole and the first through hole, the cathode post upper plastic cement is arranged on the cathode lower post in a sleeving mode, and the ceramic piece is arranged on the cathode post cover plate. The negative pole upper plastic cement is arranged on one side, opposite to the cover plate lower plastic cement, of the cover plate body, and the negative pole cover plate is arranged in the negative pole upper plastic cement. Therefore, the safety problems such as short circuit and combustion caused by the short circuit can be effectively avoided under the condition of high temperature or thermal runaway of the battery.

The utility model relates to the technical field of PPO plastic cement particles, and discloses a PPO plastic cement particle appearance detection device which comprises a mounting rod and a second connecting rod, an intermittent transmission mechanism is arranged on the side face of the mounting rod, and a detection mechanism is arranged on the top end face of the second connecting rod; the intermittent transmission mechanism comprises a mounting block, and a servo motor is fixedly mounted on the side face of the mounting block. During detection, PPO plastic particles are conveyed to the surface of a conveying belt through a feeding mechanism, a servo motor is further started, then a rotating disc and a pin column are driven to rotate, the rotating disc and the pin column are matched with a groove formed in the side face of an intermittent disc, the intermittent disc is driven to rotate intermittently, a connecting rod is driven to rotate, a driving wheel is driven to rotate, and then the conveying belt is driven to conduct transmission; the PPO plastic particles are conveyed to the bottom face of the detection assembly to be detected, the problems that when a traditional detection device is used for detection, only a small number of particles can be detected, detection is slow, manual auxiliary observation is needed in the detection process, and the detection speed is low can be solved, and the detection quality and efficiency of the device are improved.

The utility model discloses a USB 3.1 10G A female seat elastic height fixing structure, which comprises a female seat main body and a shell, the shell is sleeved at the upper end of the female seat main body, the female seat main body comprises insulator plastic cement, and the upper end of the insulator plastic cement is provided with a first terminal module and a second terminal module which are arranged in a row shape. The second terminal module is arranged at the front end part of the insulator plastic cement, the front end part of the first terminal module is provided with an elastic high end, the front end part of the elastic high end is provided with an elastic high hook, and the elastic high hook is correspondingly matched with a baffle block arranged at the upper end of the insulator plastic cement. The utility model has the advantages that the design is novel, the structure is simple, the elastic height can be kept consistent, the sharp point of the terminal is not higher than the plastic surface due to plastic deformation, and the problem of poor insertion of the crisp PIN after the sharp point of the terminal is higher is solved.

The utility model discloses a shell assembly, a battery monomer and a power device, the shell assembly comprises a shell body, an accommodating cavity is formed in the shell body, a pole group is arranged in the shell body, an explosion-proof hole is formed in the top of the shell body, and first through holes are formed in two sides of the explosion-proof hole; the terminal post is arranged on the shell body; the lower plastic cement is arranged at the top of the shell body and is positioned in the accommodating cavity; and the connecting sheet is arranged between the lower plastic and the pole group, and the top surface of a part of the connecting sheet at the position of the first through hole is positioned between the upper surface of the pole and the lower surface of the lower plastic. According to the shell assembly disclosed by the utility model, the part of the connecting piece at the position of the first through hole is arranged between the lower surface of the pole and the lower surface of the lower plastic, so that the height of the pole is reduced, the internal space utilization rate of the shell assembly is improved, and the volume energy density of the battery is improved.

The utility model belongs to the technical field of batteries, and discloses a blister tray structure which comprises a tray body, a plurality of containing grooves are formed in the upper end face of the tray body, and battery cover plates can be placed in the containing grooves. The lower plastic cement of the battery cover plate abuts against the groove bottom of the containing groove, and the side wall of the battery cover plate abuts against the side wall of the containing groove. When a plurality of plastic uptake tray structures provided with the battery cover plates are stacked up and down oppositely, in every two adjacent plastic uptake tray structures, the two battery cover plates in every two opposite containing grooves are oppositely arranged, and the two battery cover plates in every two adjacent plastic uptake tray structures are oppositely arranged. The end face of the rubber coating ring of the battery cover plate located on the lower layer abuts against the outer bottom wall of the containing groove located on the upper layer, the pole in the rubber coating ring located on the lower layer can stretch into the receding groove of the tray body located on the upper layer, and the upper end face of the pole is prevented from making contact with the outer bottom wall of the containing groove located on the upper layer. The blister tray structure can position and fix the battery cover plate; and the pole of the battery cover plate can be prevented from being worn and crushed.

The utility model provides a pole sealing structure and a battery cover plate structure thereof, the pole sealing structure comprises a pole, upper plastic cement, a light aluminum plate, lower plastic cement, a sealing ring and a riveting block, the pole sequentially penetrates through the lower plastic cement, the light aluminum plate and the upper plastic cement from bottom to top, the upper end of the pole is riveted through the riveting block, an annular boss is arranged at the bottom of a pole hole of the upper plastic cement, and the sealing ring is arranged on the boss. The smooth aluminum plate is provided with an annular groove matched with the boss, the inner side face of the boss is provided with a chamfer, the sealing ring is arranged on the pole in a sleeving mode, the outer side of the sealing ring is matched with the lower plastic, the smooth aluminum plate and the upper plastic, and the upper end of the sealing ring abuts against the surface of the chamfer. The positive pole and the negative pole of the battery cover plate structure are connected by adopting the pole sealing structure. The sealing structure is additionally provided with the chamfered boss, the chamfered boss can be in close contact with the sealing ring after assembly, and a certain compression amount can be formed, so that external electrolyte can be prevented from polluting the pole, and the reject ratio in the battery manufacturing process is reduced.

The application discloses artistic plastic cement composite additives and application thereof, and relates to the technical field of composite cement. The artistic plastic cement composite additives are prepared from the following raw materials in percentage by weight: a retarding agent 0.5-2%, a water-retaining thickening agent 2-6%, a fiber reinforcing agent 1-4%, mineral pigments 70-85%, a thixotropic lubricant 3-7% and functional additives 5-10%. The retarding agent is at least one of tartaric acid, citric acid, sodium gluconate or a lignin sulfonate; the water-retaining thickening agent is selected from hydroxypropyl methylcellulose or methylcellulose; and the fiber reinforcing agent is at least one of polypropylene fiber, glass fiber and lignin fiber. The artistic plastic cement composite additives and application thereof have the advantages that, through the synergy of the retarding agent, the water-retaining thickening agent, the fiber reinforcing agent and the thixotropic lubricant, the artistic plastic cement composite additives have superior comprehensive performance in artistic plastic cement, and the strength and construction performance are taken into account.