40results about How to "Avoid puncture" patented technology

The present application provides a diaphragm-free lithium ion battery. The battery comprises a positive electrode current collector, a positive electrode active material, a solid electrolyte, a solvent, a negative electrode active material, and a negative electrode current collector. The solid electrolyte is a solid porous organic polymer, which contains specific functional groups, including weakly coordinated anion groups, and the corresponding cation of the anion group is lithium ion. The porous polymer is a solid powder, which can act as a barrier between the positive electrode active material and the negative electrode active material, eliminating the need for a diaphragm and greatly improving the safety performance of the battery.

The utility model relates to the technical field of fire-fighting boots, in particular to a high-comfort fire-fighting protective boot for firefighters, which comprises a boot sole, a toe cap, a vamp, a heel and a boot leg which are integrally arranged, a waterproof sock is jointly attached to the inner surface layers of the toe cap, the vamp and the boot leg, and the boot leg comprises a leg body, a tibia protective layer, an ankle protective layer and an ankle joint bending layer. By means of the arrangement of the waterproof socks on the inner surface layers of the boot vamps and the boot legs, it is guaranteed that when a fireman works in the environments such as wading, the feet cannot be soaked by water, and the waterproof socks further have the functions of high breathability, chemical protection and blood transmission and viral pathogen resistance; meanwhile, the tibia protection layer, the ankle protection layer and the ankle joint bending layer are arranged, and the design fully considers the protection requirements of different parts of the feet of the firefighter when the firefighter executes a task, so that the firefighter can quickly respond in an emergency, and the timeliness and the accuracy of rescue actions are improved.

The invention discloses a PCCP pipe bell and spigot joint sealing system manufacturing method and a PCCP pipe bell and spigot joint sealing system manufactured through the PCCP pipe bell and spigot joint sealing system. During manufacturing, a joint is filled with an elastic blocking piece, the elastic blocking piece is divided into a first sub-joint and a second sub-joint, and the elastic blocking piece is arranged in the joint in an abutting mode through a locking mechanism; mortar is poured into the first sub-joint through a reserved first grouting opening, and the locking mechanism is removed after the mortar does not flow; a base layer is arranged on the upper end face of an upper opening of the second sub-joint, anticorrosive paint is applied to the base layer to form an anticorrosive coating, the anticorrosive coating and the base layer form a plugging structure and seal the second sub-joint, and sealant is poured into the second sub-joint through a reserved second grouting opening; the elastic barrier piece is basically non-sticky to mortar and the like; the method is suitable for construction in the low-temperature environment, the obtained sealing system can adapt to different stress interferences and different environmental factors, lasting sealing can be achieved, the construction technology can be simplified after the anti-corrosion coating is formed in a front-arranged mode, and the construction speed is high.

The utility model belongs to the technical field of sand core casting equipment, and particularly relates to a sand core drilling tool for casting an ejector rod hole, which comprises a base, an ejector rod hole drilling device and a sand core drilling device, a plurality of limiting blocks are distributed on the upper end face of the mould, and the limiting blocks are matched with one another to form a sand core placing position; the drilling mechanisms are arranged along the horizontal direction and are respectively aligned with the corresponding processing surfaces of the sand core; the sliding mechanism is used for bearing the mould and comprises sliding rails and moving parts capable of moving back and forth along the sliding rails, and limiting parts are arranged on the sliding rails and abut against the inner sides of the moving parts to limit transverse deviation of the sand cores on the mould; wherein a thrust block is arranged in the advancing direction of the sliding mechanism and is suitable for limiting the maximum stroke of the sliding mechanism so as to limit the hole depth of the sand core and prevent the drilling depth from exceeding the thickness of the side wall of the sand core, so that a drill bit is prevented from punching through the side wall of the sand core.

The utility model relates to the technical field of labor protection, in particular to a breathable labor protection shoe which comprises a sole and a vamp connected to the sole, and an anti-smashing cover is arranged in the portion, located on a toe cap, in the vamp. The anti-smashing cover comprises a bottom plate, an upper cover face and a lower cover face, the upper cover face and the lower cover face are connected to the bottom plate, and a crumple buffering cavity is formed between the upper cover face and the lower cover face. The upper cover face is provided with a first air hole set communicated with the crumple buffering cavity, the lower cover face is provided with a second air hole set communicated with the crumple buffering cavity, and the first air hole set and the second air hole set are arranged in a staggered mode. And a better ventilation effect is achieved.

The application belongs to the technical field of batteries, and particularly relates to a gel electrolyte, a preparation method and a lithium ion battery; the gel electrolyte comprises a polymer matrix in which two-dimensional layered nanosheets are uniformly intercalated in situ, and an ionic liquid loaded in the polymer matrix; a solute of the ionic liquid comprises an electrolyte lithium salt, and a solvent of the ionic liquid comprises vinylene carbonate; in the technical scheme provided by the embodiment of the application, a new gel electrolyte is obtained by intercalating two-dimensional layered nanosheets in a polymer matrix in situ, the ionic conductivity of the gel electrolyte is improved by improving the gel electrolyte, and the conductivity of the gel electrolyte reaches 10 ‑3 S / m, thereby avoiding dendrites formed by lithium ion deposition from piercing a passivation film, directly improving the thermodynamic and electrochemical stability of the gel electrolyte, and widening the working voltage and temperature range of the battery.

The application discloses a preparation method of a single-crystal metal lithium negative electrode. The single-crystal metal lithium negative electrode with a dense packing surface Li(110) is obtained by annealing a polycrystal metal lithium foil horizontally placed after being heated in vacuum or inert atmosphere, and is directly used for battery assembly. The application remarkably improves the electrode reaction process kinetics of the metal lithium negative electrode by reducing the self-diffusion barrier of the surface of the metal lithium negative electrode, widens the safety boundary of the metal lithium negative electrode, and enables the metal lithium negative electrode to have no dendrite growth in a practical current density range. The prepared single-crystal metal lithium negative electrode can be directly used for battery assembly, and remarkably improves the cycle stability and safety of a high-specific-energy metal lithium battery, and promotes the development of practical high-safety metal lithium batteries.

The application discloses a robot joint protection assembly based on a foamed aluminum buffer structure and relates to the technical field of robot protection.The device ingeniously introduces passive active heat dissipation (energy-saving and high-efficiency) without additional fans or power driving, skillfully converts the motion kinetic energy of the robot into wind pressure, realizes intelligent heat management of 'heat dissipation during work and air suction during stop', effectively reduces the motor temperature, significantly prolongs the service life, and is mechanically self-cleaning and low in maintenance cost: aiming at the pain point of dust in industrial environment, full-automatic dust scraping and centrifugal dust removal are realized by using a pure mechanical structure, which not only eliminates secondary pollution caused by dust falling back, but also avoids the trouble of artificial regular disassembly and cleaning, and greatly reduces the later operation and maintenance cost.

The invention belongs to the technical field of probe contact micro-bumps, and discloses a probe contact micro-bump process, which comprises the following steps: acquiring the size, position and height parameters of a micro-bump, and determining the edge position of the micro-bump, the commanding height of the micro-bump and the target depth; the probe is controlled to move in the forward extension direction of the probe body in the horizontal coordinate plane, so that the probe head of the probe moves to the position right above the edge position of the micro-bump; the distance between the position of the probe head and the commanding height of the micro-bump is adjusted for the first time, after the first adjustment is completed, the position of the probe head is adjusted for the second time, and after the second adjustment is completed, the position of the probe head reaches the target depth; the probe is controlled to move in the direction opposite to the extension direction of the probe body in the horizontal coordinate plane, so that the side face of the probe body makes substantial contact with the micro-bump, the probe contact operation of the micro-bump is completed, the probe tip is prevented from cutting into the surface of the micro-bump, and therefore the lateral scraping length and the vertical overpressure depth when the probe makes contact with the micro-bump are reduced.

The utility model provides a wind wheel type packaging carton with a partition storage structure, which belongs to the technical field of packaging cartons and comprises a connecting ring, a partition protection component and a protection component, and the partition protection component comprises a plurality of storage boxes arranged on the inner wall of the connecting ring. When the storage box is used, a user can conveniently place articles needing to be stored and transported on the first protection pads in the storage boxes, hold the sealing covers after the storage boxes are full, cover the sealing covers and plug the second protection pads into the storage boxes to perform bidirectional protection on the articles in the storage boxes, and the articles are adhered to the connecting rings through the adhesive tape rings after the sealing covers are plugged into the storage boxes, so that the storage boxes are convenient to store and transport. According to the storage box, articles in the storage box are fixed, the storage box and the connecting ring are in a wind wheel shape, the independent storage box can be separated from other articles, and therefore the purposes that partition is easy to use and protection is achieved are achieved.

The invention aims to disclose a punch-formed ultrathin metal filtering material, a process, a filter and application, and relates to the technical field of punch forming, two surfaces of a metal base material with the thickness of 0.005 mm-0. 03mm are provided with a first reference horizontal plane and a second reference horizontal plane; the first reference horizontal plane is provided with a plurality of first convex hulls which protrude out of the first reference horizontal plane and are arranged in a first array, and the top of each first convex hull is provided with a first special-shaped micropore with the aperture of 20-60 microns; the second reference horizontal plane is provided with a plurality of second convex hulls which protrude out of the second reference horizontal plane and are arranged in a second array, and the tops of the second convex hulls are provided with second special-shaped micro holes with the hole diameter ranging from 20 micrometers to 60 micrometers; the ultra-thin metal filtering material has the beneficial effects that the two surfaces of the metal base material are synchronously stamped to form the ultra-thin metal filtering material, the ultra-thin metal filtering material has a good basis of high temperature resistance and corrosion resistance, and the first convex hulls and the second convex hulls form an uneven surface structure, so that the pollutant holding capacity of the filtering material can be improved.

The utility model relates to the technical field of power batteries, and provides a supporting piece, a cylindrical battery and a battery pack, the supporting piece is inserted into a through hole in the middle of a roll core of the cylindrical battery, one end of the supporting piece is provided with a guide surface, the guide surface is a curved surface, and the radial cross sectional area of the guide surface is gradually reduced along the direction of inserting the supporting piece into the through hole. According to the supporting piece, the guide head with the curved guide surface is arranged at one end of the supporting piece, and the radial area of the guide surface is gradually reduced in the direction of being inserted into the through hole, so that the supporting piece is more easily inserted into the through hole, the assembly efficiency can be improved, the supporting piece is prevented from damaging a roll core in the insertion process, and the service life of the roll core is prolonged. Therefore, the structural integrity and the performance stability of the roll core can be protected, and the use performance of the cylindrical battery can be ensured.

This invention discloses a positioning stent for convenient fixation and safe removal within human blood vessels, relating to the field of surgical medical device technology. The positioning stent comprises: a metal wire stent with multiple pointed positioning spikes, each spike including an inner metal wire and a covering layer; the inner metal wire is connected to the metal wire of the metal wire stent, the diameter of the inner metal wire being smaller than the diameter of the metal wire of the metal wire stent; the covering layer is conical and made of a biodegradable material; the tips of the inner metal wires and the tips of the covering layer are spaced a predetermined distance apart, and the middle portion of the inner metal wire forms a spiral portion; after the covering layer degrades, the spiral portion changes from a compressed state to an extended state, allowing the inner metal wire to pierce the blood vessel wall, with a predetermined gap between the blood vessel wall surface and the surface of the metal wire stent. This invention achieves reliable stent fixation and safe removal.

This utility model discloses a puncture-resistant battery, belonging to the field of battery technology. The puncture-resistant battery includes a square casing and an insulating film. The insulating film includes a substrate layer and an adhesive layer. The adhesive layer includes a first adhesive layer, an aramid fiber layer, and a second adhesive layer stacked sequentially. The second adhesive layer is used to bond to the outer surface of the square casing, and the first adhesive layer is bonded between the substrate layer and the aramid fiber layer. This puncture-resistant battery can improve the puncture resistance of the entire insulating film through the aramid fiber layer with good puncture resistance, and the first and second adhesive layers with buffering and absorption effects, thereby improving the insulation protection performance of the entire puncture-resistant battery and increasing the overall coating efficiency.

The utility model discloses an industrial thermal insulation rock wool, can avoid the end of iron wire to pierce the aluminum film layer when bending the iron wire wound together and leaning to the aluminum film layer. An industrial thermal insulation rock wool, the outside of rock wool layer is provided with aluminum film layer, the outside of aluminum film layer is provided with rock wool batten, rock wool batten does not cover aluminum film layer completely in the circumference, the bulk density of rock wool batten is greater than the bulk density of rock wool layer, is used for the mutual winding of the both ends of the metal wire that is wound in the circumference at aluminum film layer and rock outside, and the mutual winding position of the both ends of metal wire is located at the outside of rock wool batten.

This invention relates to the field of battery technology, specifically to a separator, comprising a base film layer, a first coating layer located on one side of the base film layer, and a second coating layer located on the other side of the base film layer; the first coating layer comprises a sponge-like porous structure; the first coating layer comprises a polymer continuous phase and a porous structure, first inorganic particles, and first polymer particles dispersed in the polymer continuous phase, the polymer continuous phase, the porous structure dispersed in the polymer continuous phase, and the first inorganic particles forming a sponge-like porous structure; the first polymer particles form protrusions on the side of the first coating layer facing away from the base film layer; the second coating layer comprises second inorganic particles and second polymer particles, each independently forming a ceramic layer and a polymer layer, or mixed together to form a ceramic-polymer blend layer. The separator of this invention has excellent resistance to foreign object puncture and interfacial heat transfer efficiency, which can significantly improve the safety performance and cycle performance of the battery.

The utility model relates to the technical field of cables, and discloses a low-heat-release B2-grade polyvinyl chloride insulated cable for buildings, which comprises a plurality of conductors, insulating layers are fixedly connected outside the plurality of conductors, a same filling layer is fixedly connected outside the plurality of insulating layers, a wrapping tape is fixedly connected outside the filling layer, and the wrapping tape is fixedly connected outside the plurality of conductors. The outside of the wrapping tape is fixedly connected with an anti-puncture layer, the outside of the anti-puncture layer is fixedly connected with a buffer layer, and the outside of the buffer layer is fixedly connected with a sheath. According to the utility model, the conductors are isolated through the insulating layers to prevent current leakage and reduce heat release in case of fire, the filling layer fills gaps of the cable to enhance mechanical properties and heat dissipation, and the puncture-proof layer prevents the cable from being punctured, so that a stable and safe power transmission effect is realized, the safety risk in the power transmission process is reduced, and the fire hazard is reduced; the adaptive capacity of the cable in a complex environment is enhanced, and reliable operation of the cable in a building is guaranteed.

The utility model relates to a kind of sealing machine on beverage production line. For the paper box loaded with beverage product is closed top cover, the top cover includes front wing plate, rear wing plate and two side wing plates, the sealing machine includes conveying line, portal frame, the pressing plate for folding front wing plate, the folding rod for folding two side wing plates and the mechanical arm for folding rear wing plate, the mechanical arm includes fixed arm, movable arm and cylinder, one end of the fixed arm is fixedly installed on portal frame, and the other end is hinged with the one end of movable arm, the cylinder drives movable arm to swing up and down, the other end of movable arm is equipped with push assembly;The push assembly includes rotatable roller, and the roller pushes and presses rear wing plate to fold rear wing plate when movable arm swings down. The utility model is rolled and pressed rear wing plate using rotatable roller, avoid to pierce rear wing plate, while can reduce the abrasion caused by friction rear wing plate, guarantee the quality of folding rear wing plate.

The utility model relates to the technical field of liver disease nursing, and disclose a kind of liver disease nursing infection prevention protection device, comprising: outer protective gloves, the inner wall of outer protective gloves is movably connected with inner protective gloves, the inner wall of outer protective gloves is provided with sub snap, the inner wall of outer protective gloves is bonded with second sub magic paste, the outer wall of inner protective gloves is provided with female snap. The liver disease nursing infection prevention protection device, in the process of using the infection prevention protection device, it can be thickened to prevent puncture by the setting of inner and outer layers, also can improve the puncture prevention effect through the protective structure on the surface of outer protective gloves, avoid the syringe, needle or other sharp objects used by patient in nursing process puncture, so as to avoid the contact between the hand of medical staff and bacteria or germ due to the damage of infection prevention protection device, further improve the protection effect of the infection prevention protection device when using.

This application discloses a wear-resistant bubble bag, relating to the field of bubble bag technology. The bag body includes a bubble film layer, a fiber layer, and a wear-resistant layer. An anti-static component is disposed on the inner side of the wear-resistant layer. The anti-static component includes guide lines and a dispersion plate, both of which are bonded to the wear-resistant layer with adhesive. The bag body, from the outside in, consists of the wear-resistant layer, the fiber layer, and the bubble film layer. This application utilizes a polyethylene wear-resistant layer with high hardness to resist friction and impact during transportation, and waterproofing to isolate moisture. The polyester fiber layer, with its high strength and toughness, prevents the bag body from being punctured by sharp objects, enhancing stability. The polyurethane bubble film layer, with its high elasticity, tightly adheres to the item, improving packaging fit. Simultaneously, the silver-plated copper fiber guide lines and the "Z"-shaped connecting lines form a mesh structure, rapidly conducting and dispersing static electricity. The copper-zinc alloy dispersion plate further adsorbs and diffuses static electricity, preventing damage to the item from static electricity.

The utility model discloses an open -pit mine vehicle tire prevents and pierces the protection cover of pricking, including annular zone, the inner diameter of annular zone is compatible with the outer diameter of vehicle tire, annular zone uses rubber material to make, annular zone includes the tread part and shoulder part, the tread part and shoulder part are wrapped respectively the tread and shoulder of vehicle tire, the outer wall of tread part is around be provided with the boss structure, annular zone inside is provided with the reinforced protective layer, the reinforced protective layer covers tread part completely, the inner wall of tread part is provided with the antiskid line and / or antiskid layer, the roughening processing mode includes but not limited to sandblasting, chemical etching or mould pressing, the utility model discloses through setting up the rubber annular zone of compatible tire size, utilizes the boss structure of tread part outer wall and disperses sharp object impact force and enhances the ground adhesion, through the reinforced protective layer, the anti -piercing ability is improved significantly, so can effectively prevent vehicle tire and be pricked by sharp object.

The utility model discloses a high-temperature-resistant adhesive tape with a temperature warning function, and relates to the technical field of high-temperature-resistant materials. The winding device comprises a winding drum, a framework is arranged in the winding drum, a protection assembly is arranged at the end of the winding drum and comprises a protection ring arranged at the outer end of the winding drum, an insertion plate is further inserted into the protection ring, the protection ring is inserted into the end of the winding drum through the insertion plate, and an adhesive tape body is further wound on the winding drum. The adhesive tape body is composed of a first high-temperature-resistant layer, a second high-temperature-resistant layer and a third high-temperature-resistant layer, an adhesive layer is arranged at the bottom of the first high-temperature-resistant layer, a reinforcing layer is arranged on the outer side of the third high-temperature-resistant layer, and a thermosensitive coating is arranged in the reinforcing layer. According to the utility model, the two ends of the adhesive tape body wound on the winding drum can be protected by utilizing the protection component, and the color of the adhesive tape body can be changed along with the temperature-sensitive coating on the adhesive tape body when the adhesive tape body bears different temperatures, so that a temperature warning effect is realized.

The present application relates to pressure relief valve technical field, specifically to a kind of pilot pressure reducing valve, comprising: a kind of pilot pressure reducing valve, comprising: pressure reducing valve body, pressure reducing valve body includes main valve body, main valve piston and main valve port;Input port;Output port;Pilot valve, set in the inside of pressure reducing valve body, pressure reducing valve body still be provided with for when the fluid pressure inside input pressure reducing valve occurs transient mutation stabilizing the opening and closing size of pressure reducing valve main valve port Stabilizing device. Through the energy-absorbing module of piston one and piston two cooperation in stabilizing device, when the fluid of input pressure reducing valve body suddenly pressure is higher, but not enough to exceed the energy-absorbing limit of energy-absorbing device, the pressure inside pilot valve does not change, main valve spring does not produce action, guarantees the stability of output fluid pressure, effectively improves the use stability and service life of downstream equipment, while also can improve the service life of main valve spring, to improve the service life of pressure reducing valve.

The utility model belongs to the medical instrument pulse ablation technical field provides a kind of percutaneous puncture's monopolar ablation device, including needle tube, it is equipped with first insulating layer on it, the distal end of needle tube is exposed to form first ablation electrode;Needle core, it is worn in needle tube, needle tube is electrically connected with needle core, needle core is rigid structure and / or needle tube is rigid structure, coaxial line is arranged to both, needle core and needle tube can move synchronously, and needle core and needle tube can be relatively moved;Wherein, the distal end of needle tube is provided with puncture blade mouth, the distal end of needle core is provided with smooth guiding structure;Or puncture blade mouth is arranged on the distal end of needle core, and smooth guiding structure is arranged on the distal end of needle tube.Through using above-mentioned structure, in puncture process, it can avoid blood vessel by smooth guiding structure, simultaneously, in combination with the relative movement of needle core and needle tube, it can increase effective ablation length, to meet the ablation processing demand of larger lesion tissue.

The invention relates to a foundation pit slope supporting structure capable of being completely recycled and reused and a construction method. The foundation pit slope supporting structure comprises a plurality of supporting units and ground anchors used for fixing the supporting units to a foundation pit slope. The supporting unit comprises a supporting bottom plate; an assembly structure is arranged on the supporting bottom plate; the assembling structure comprises a buckle plate arranged opposite to one side face of the supporting bottom plate and a baffle arranged on the side, opposite to the buckle plate, of the supporting bottom plate. The baffle and the supporting bottom plate are arranged at intervals, and a drainage groove is formed between the baffle and the supporting bottom plate. Mounting grooves are formed between the buckle plate and the supporting bottom plate at intervals; when the adjacent supporting units are assembled, the baffles are arranged in the mounting grooves to form non-fixed connection; the middle of the supporting bottom plate is further provided with a rivet receding hole used for installing a rivet. Through the recoverable design of the supporting units and the anchor nails, materials are recycled, water pressure generated by rainwater is dredged in time through the drainage grooves in the assembly structure, and the situation that a supporting system is damaged due to water pressure accumulation of a supported soil slope is avoided.

An energy-storage high-precision multi-narrow-cavity aluminum profile workpiece inner cavity burr removing device is characterized in that a workbench is mounted above a rack, a workpiece is placed in the middle of the workbench, supporting grooves are formed in the two ends of the workbench, walking frames are arranged in the supporting grooves, walking wheels are arranged below the walking frames, chucks are mounted on the inner sides of the walking frames, the chucks clamp one end of a connecting rod, and the other end of the connecting rod is connected with a blade block; inner cavities of the workpiece are matched with the blade blocks in number and shape. The burr removing device is specially used for removing burrs in the deep cavity of the division bar of the inner cavity of the dynamic energy storage cabinet, has the advantages of being high in burr removing efficiency, good in removing effect and the like, and improves the battery safety of the energy storage cabinet.

The utility model discloses a battery pack and a power utilization device, the battery pack has a first direction and a second direction which are vertical, the battery pack comprises a box body, a plurality of battery packs, at least one side plate and a first adhesive layer, the box body comprises a bottom plate and a cross beam, and the bottom plate and the cross beam are connected to define an accommodating cavity for accommodating the battery packs; the side plate is arranged between two adjacent battery packs, and one end, close to the cross beam, of the side plate in the first direction is hermetically connected with the bottom plate and the two battery packs respectively; a glue accommodating space is defined by the at least one side plate, the plurality of battery packs, the bottom plate and the cross beam; the first glue layer is filled in the glue containing space and is in sealing connection with the side, facing the cross beam, of the side plate, the side, facing the cross beam, of the battery pack, the cross beam and the bottom plate. According to the battery pack, the ends, close to the cross beams, of the side plates are in sealed connection with the ends, close to the cross beams, of the two adjacent battery packs respectively, so that the first adhesive layers can be prevented from entering the space between the two adjacent battery packs, insulating films of the battery monomers are prevented from being punctured, and the safety of the battery pack is effectively improved.

The application provides a residual film recycling machine and belongs to the technical field of agricultural land preparation machinery. The machine comprises a main frame body, a first support frame is installed at the bottom of one side of the main frame body, spring bodies are installed at the top of both sides of the first support frame, and an electric telescopic rod is installed at the bottom of the first support frame. The soil loosening and stem collecting mechanism and the stem conveying and soil vibrating mechanism are arranged. The soil loosening and stem collecting mechanism can be used to quickly collect the stems and leaves of high-ridge crops such as strawberries after the fruits are harvested when the land is prepared in high-ridge fields. Meanwhile, the soil covering the residual film on both sides of the residual film is loosened, which provides convenience for the subsequent residual film recycling operation. The stem conveying and soil vibrating mechanism conveys the stems and leaves to the top of the device after the stems and leaves are collected, and the stems and leaves are effectively separated from the soil residues by means of the vibration generated by the movement of the device during the conveying process.

The utility model relates to battery technical field discloses a kind of winding type electric core and battery, winding type electric core has straightaway and circular arc area, winding type electric core includes polar plate and diaphragm of laminated and winding arrangement;Polar plate includes current collector and active layer, active layer is located at the at least one side of current collector, active layer includes circular arc segment and straightaway, circular arc segment is located in circular arc area, straightaway is located in straightaway, and circular arc segment is equipped with positioning groove;Winding type electric core further includes ion-conducting membrane, at least part of ion-conducting membrane is located in positioning groove, and ion-conducting membrane is arranged between polar plate and diaphragm.The utility model of winding type electric core is by being provided with positioning groove on polar plate, the relative position of ion-conducting membrane and polar plate is limited, so that ion-conducting membrane can continuously insulate the burr of the part of polar plate located in circular arc area, reduce the probability of battery self-discharge.

This invention discloses a puncture-resistant shielded wire, relating to the field of wire technology. It includes a wire body with an auxiliary mechanism. The auxiliary mechanism includes a circular ring block and a circular ring groove. Two symmetrical rectangular grooves are formed on one side of the circular ring block. Two locking holes are formed on the outer wall of the circular ring block. Two locking blocks are arranged inside each locking hole. A first sliding groove is formed on the inner wall of each locking hole. Two sliders are slidably connected inside each first sliding groove. A round rod is fixed inside each rectangular groove. This invention, by setting the auxiliary mechanism, enables the puncture-resistant shielded wire to have a rapid heat dissipation function, thus avoiding situations where heat cannot be quickly dissipated, affecting the insulation performance of the wire, shortening its service life, and increasing the fire hazard. This improves both the effectiveness and efficiency of the puncture-resistant shielded wire.