91results about How to "Increase the welding area" patented technology

The invention relates to a multi-core-group ceramic capacitor and a preparation method thereof, and the capacitor comprises a first welding piece and a second welding piece which are oppositely arranged, a capacitor body arranged between the first welding piece and the second welding piece, and a mold pressing housing wrapping the periphery of the capacitor body. Comprising two connecting frames arranged oppositely, a supporting frame arranged between the two connecting frames and two capacitor chip sets arranged between the connecting frames and the supporting frame respectively, each capacitor chip set comprises a plurality of capacitor chips arranged in sequence, a first welding piece is connected with the tops of the two connecting frames, and a second welding piece is connected with the bottom of the supporting frame; the structure of the multi-core group ceramic capacitor is limited, the internal structure of the multi-core group ceramic capacitor is improved, the ends of the capacitor chips are welded with the connecting frame and the supporting frame and then are welded with the welding sheets, and the connecting frame and the supporting frame can be locally deformed when bearing stress, so that the impact of the stress on the capacitor chips is released, and meanwhile, the strain resistance is improved.

The utility model discloses an expansion kettle support, which comprises an expansion kettle support main body, an expansion kettle and a frame, the upper end of the expansion kettle support main body symmetrically forms support plates through stamping, and the support plates are provided with mounting holes; a first connecting hole, a second connecting hole and a third connecting hole are formed in the side face of the expansion kettle support body, a clamping positioning plate is formed in the middle of the upper end of the expansion kettle support body through stamping, a positioning seat is arranged on the side face of the expansion kettle, and mounting fixing seats are symmetrically arranged on the two sides of the positioning seat. And the mounting fixing seat corresponds to the supporting plate in position, and the positioning seat corresponds to the clamping positioning plate in position, so that the expansion kettle is subjected to double positioning treatment through the supporting plate and the clamping positioning plate. The expansion kettle support is formed by stamping a steel plate, and is simple in structure, short in manufacturing period, low in cost, convenient to assemble and capable of saving manpower, material resources and financial resources.

The collector plate comprises a body, the body is provided with a plurality of welding areas welded with a pole group, the plurality of welding areas are spaced along the circumferential direction of the body, each welding area is provided with a welding printing group, the welding printing group comprises a plurality of welding spots which are sequentially arranged, and the welding printing group is V-shaped or arc-shaped. According to the collector plate disclosed by the utility model, the body of the collector plate is provided with the V-shaped welding printing group, the length of a welding path is increased, the welding area between the collector plate and a pole group is increased, and the connection stability is improved, so that the overcurrent capability and the reliability of a battery are ensured.

The invention discloses a tie-bar-free stainless steel water tank with a built-in fully-exposed triangular section, and relates to the technical field of water tanks, the tie-bar-free stainless steel water tank comprises a water tank bottom plate module, a water tank top plate module, water tank side plate modules, stand columns and cross beams, and the water tank top plate module and the water tank side plate module are respectively formed by combining, splicing and welding a single-inclined-edge water tank template and a double-inclined-edge water tank template. A traditional water tank welding and water tank pressure balance mode is changed; the vacant welding position is connected with the folding edge of the water tank side plate module in a welding mode, the welding area is increased, the stress concentration phenomenon is reduced, and the stability and deformation resistance of the water tank are guaranteed.

The utility model discloses a reinforcing welding rib structure of glovebox and glovebox, the welding rib structure includes the grid welding rib that is provided in the face of inner bucket facing the outer cover plate, and each corner position of the grid welding rib is provided with the transverse welding rib, this application increases the welding area between inner bucket and the outer cover plate by adding the transverse welding rib, has increased the welding area between inner bucket and outer cover plate. The friction welding strength between the inner bucket and the outer cover plate is improved, and it is guaranteed that the actual welding strength can meet the pulling-out force requirement of 1000 N or above. Besides, at least two longitudinal welding ribs are arranged on each of the left side portion and the right side portion of the grid welding rib, the longitudinal welding ribs are additionally arranged, when the transverse welding ribs are subjected to pulling-out force, the longitudinal welding ribs can provide resistance, the trend that the transverse welding ribs are pulled open is slowed down, and therefore the inner bucket and the outer cover plate can be pulled open only through larger pulling-out force, and the pulling-out force is reduced. And the friction welding strength is improved. The glove box with the reinforced welding rib structure is high in welding strength and can meet the industrial standard requirement of friction welding pulling-out force.

The utility model discloses a metal insert injection molding pin header, the metal insert injection molding pin header comprises a support and at least one pin header terminal embedded on the support, the pin header terminal is of a U-shaped bending structure, two sides of the pin header terminal are provided with clamping hooks which are folded inwards, two sides of the support are provided with grooves, and the clamping hooks are arranged in the grooves. The pin header terminals are embedded in the grooves through the clamping hooks, and pins of the pin header terminals extend out of the bottom of the support along the side face of the support. According to the utility model, the welding area of the pin header pins can be increased, the pins are partially embedded into the support, the structure is firm, the pins are prevented from loosening, and the reliability is improved.

This invention provides a power packaging structure and power module, including a substrate, a power chip, several conductive pillars, a molding compound, and several front-side lead-out terminals. The conductive pillars are sequentially divided into a first structure and a second structure along a direction away from the top surface of the substrate, and the bottom surface of the first structure is fixed to the electrode lead-out area on the top surface of the substrate. Since the cross-sectional area of ​​the first structure is smaller than that of the second structure of the conductive pillars, and several conductive pillars are fixed to the top surface of the substrate, the space requirement for the conductive pillars on the substrate is greatly reduced by decreasing the contact area between a single conductive pillar and the top surface of the substrate, thereby reducing the size of the substrate and consequently lowering the packaging cost.

The invention relates to a cylindrical battery top cover assembly and an assembling method thereof, and a battery cell comprising the top cover assembly. The top cover assembly comprises a T-shaped pole terminal, an upper plastic part, a top cover sheet, an inclined plane sealing ring, a lower plastic part, a compression ring and a confluence disc, the disc part provides a wide welding surface, the cylinder is used for connecting the compression ring and the confluence disc, and the welding reliability and stability are enhanced. And the compression ring and the confluence plate are sleeved on the cylinder of the pole terminal and are firmly connected with the pole terminal in a laser welding manner. The design of the inclined plane sealing ring enables the sealing ring to distribute stress more uniformly when the sealing ring is stressed, sealing failure is avoided, the assembly method comprises the steps of stacking the assemblies, applying pressure to the confluence plate to compress the sealing ring, and welding the compression ring, the confluence plate and the pole terminal in the state that the sealing ring is compressed, so that efficient and stable connection among the assemblies is realized, and the assembly efficiency is improved. Therefore, the sealing performance, the electrical connection reliability and the long-term stability of the battery are improved.

The invention provides a cross-flow fan blade and a cross-flow fan with the cross-flow fan blade, the cross-flow fan blade comprises a plurality of middle-section fan blades which are connected in sequence, and each middle-section fan blade comprises a disc, a connecting structure and a plurality of blades; each blade is provided with a first end and a second end, the first ends are connected with the disc, the second ends extend in the axial direction of the disc, the second ends of the adjacent blades are connected through a connecting structure, the end face, away from the disc, of the connecting structure is a first end face, and the first end face is connected with the disc of the adjacent middle-section fan blade. The first end face of the first middle-section fan blade is connected with the annular groove of the second middle-section fan blade, and the blade of the first middle-section fan blade is connected with the blade groove of the second middle-section fan blade. The connecting structures are arranged at the second ends of the blades, so that the connecting strength between the blades can be enhanced, the whole fan blade is more stable in the operation process, and the phenomenon that the whole fan blade is prone to deformation in the placement process is avoided.

The invention discloses a longitudinal electric connecting piece based on a printed circuit board. The longitudinal electric connecting piece comprises a layered insulation structure and a metal connecting piece arranged in the layered insulation structure. At least one end of the metal connecting piece is provided with an easy-to-deform part exposed out of the layered insulation structure, and the easy-to-deform part is exposed out by etching the layered insulation structure on the printed circuit board. On the other hand, the invention discloses application of the longitudinal electric connecting piece based on the printed circuit board. The longitudinal electric connecting piece is applied to a power module. When the structure is assembled to a power module and the like, press fit and leveling of an assembly structure are facilitated, and the flatness of an assembly body can be effectively improved; in addition, the welding area can be effectively increased, a welding exhaust channel is provided, a welding spot crack propagation path is blocked and the like, the connection reliability can be effectively improved, and due to the existence of the easily-deformed part, the service reliability in severe environments such as high vibration and high temperature change range can be improved.

The invention discloses a longitudinal electric connecting piece based on a printed circuit board. The longitudinal electric connecting piece comprises a layered insulation structure and a layered metal connecting piece arranged in the layered insulation structure. At least one end of the layered metal connecting piece is provided with an end bonding pad exposed out of the layered insulating structure, and the surface of the end bonding pad is in a wave shape. On the other hand, the invention discloses application of the longitudinal electric connecting piece based on the printed circuit board. The longitudinal electric connecting piece is applied to a power module. According to the invention, the width, spacing and the like of the end pads can be greatly reduced, the number of fan-out pins is effectively increased, the interconnection density is improved, the welding area can be effectively increased, a welding exhaust channel is provided, a welding spot crack propagation path is blocked and the like, and the connection reliability can be effectively improved.

The utility model relates to the technical field of pipeline welding, in particular to a corrugated pipe leakage prevention welding structure which comprises a flange plate, a positioning hole, a positioning seat, an external thread, an internal thread, a corrugated pipe, a positioning groove, a high-temperature sealing ring and a surfacing layer. The positioning holes are formed in the periphery of the bottom of the flange plate; the positioning seat is installed on the inner wall of the flange plate, and the positioning seat and the flange plate are of an integrated structure. The external thread is arranged on the outer wall of one end of the positioning seat; the corrugated pipe is connected with the external threads on the positioning seat through the internal threads in a rotating manner; the positioning groove is formed in one end of the inner wall of the corrugated pipe; by improving the welding structure for preventing the corrugated pipe from leaking, the welding structure for preventing the corrugated pipe from leaking has the advantages of being reasonable in structural design, convenient to position when the corrugated pipe and the flange plate are welded, firm in welding of the corrugated pipe and the flange plate and good in sealing performance after welding, and therefore the problems and defects in the prior art and equipment are effectively solved.

The invention discloses a filament winding and welding machine, and relates to the technical field of wire welding equipment, the filament winding and welding machine comprises a wire stripping mechanism, a welding mechanism and a feeding mechanism, the welding mechanism comprises a wire winding assembly, a wire winding clamping jaw in the wire winding assembly is composed of a pneumatic element, a clamping jaw piece, a reset spring and a fixing seat, and the clamping jaw piece comprises a first clamping block with a positioning shaft shoulder and a second clamping block with a positioning shaft shoulder; the wire welding assembly comprises a wire welding arm and a wire releasing arm, a spot welding gun and an ignition rod are arranged on the wire welding arm, a ceramic base with a through hole is arranged at the end of the wire releasing arm, and a ceramic ring in the through hole is in an unclosed circular ring shape so that a filament can penetrate through the ceramic ring conveniently. The wire winding driving assembly adopts an electric sliding table, the wire loosening arm is in sliding connection with the wire welding arm through a sliding rail, the wire stripping mechanism comprises a wire stripper, the wire stripper is provided with a wiring seat, a wire extruding plate, a wire extruding wheel, a wire stripping knife and a plurality of auxiliary parts, and precise machining and efficient welding of thin wires are ensured. The thin wire welding device achieves the technical effects of improving the firmness degree of thin wire welding and ensuring the quality of the welding wire.

This utility model relates to the field of box manufacturing technology, and in particular to a finished box partition with precise positioning and easy welding. It includes a box body, within which a first partition and a second partition are provided. A pin plate is installed at one end of the second partition, which is slidably connected to the inner wall of the first partition. A pair of positioning protrusions corresponding to the inner wall of the box are respectively provided at one end of the first and second partitions. A pair of welding reinforcing ribs corresponding to the second partition are respectively installed on both sides of the other end of the first partition. A welding guide groove is formed between the welding reinforcing ribs and the second partition. This effectively solves the problems in the prior art where inaccurate partition positioning leads to welding position deviations, and improper welding may cause marks and damage to the inner surface of the box.

According to the guardrail structure for the bed, two or more stand columns are installed on a cross beam of the outer side bed edge in parallel, the adjacent stand columns are connected through cross rods, the bottoms of the stand columns extend towards the upper portion of the outer side of the bed edge in an arc mode to form an expansion space, and the bottom ends of the stand columns abut against the side face and the top face of the cross beam through supporting parts and pressing parts. The lock hooks are inserted into the clamping holes of the cross beams, and then the stand columns and the cross beams are welded and fixed. The guardrail structure for the seedbed is high in structural strength, the supporting capacity can be effectively guaranteed, and an expansion space can be formed at the bottom so as to increase the usable bed width.

The application discloses a battery and a manufacturing method thereof, and the battery comprises a positive current collector layer, which is a composite structure with dense normal layers and porous functional layers alternately distributed formed on an aluminum foil substrate through electric field assisted selective etching, a positive electrode sheet coated with positive active material aluminum powder and subjected to formation treatment, and a top cover assembly and a bottom cover assembly connected with the positive and negative electrodes through full-tab cross-section laser welding and full-tab end face laser welding respectively; the manufacturing method comprises the steps of preparing a composite positive current collector layer, coating active material, assembling a battery cell, laser welding and packaging, etc. The specific surface area and ion transmission efficiency are greatly improved through the composite current collector layer structure, the internal resistance and temperature rise are reduced by combining the optimized full-tab welding process, so that the rate performance, cycle stability and thermal safety of the battery are significantly improved, and the battery is suitable for the manufacturing of high-power long-life batteries such as electric vehicles and energy storage systems.

The utility model provides a core package structure and a square electric core, relates to the battery technical field, the core package structure comprises 2n laminated roll cores, n is greater than or equal to 2, the roll cores are grouped according to a one-to-one correspondence mode to form n roll core groups, each roll core group comprises two roll cores, the two roll cores at the central position of the laminated arrangement form a central roll core group, and n is greater than or equal to 2. The roll cores located on the two sides of the center roll core set are sequentially and symmetrically grouped outwards to form a plurality of outer side roll core sets. Tabs are arranged on the two sides of the roll core in the length direction respectively, the tabs in the central roll core group are located below the core cladding structure and gradually get away from the roll core groups from the center to the outside, and the positions of the tabs on each outer roll core group in the height direction of the core cladding structure are sequentially increased relative to the tabs close to the central roll core group. According to the core cladding structure disclosed by the utility model, the tabs on all the roll cores can be conveniently welded with the surfaces of different heights of the connecting sheets, so that the welding operability and the welding efficiency of the tabs and the connecting sheets are improved.

The invention relates to the technical field of battery sealing nail welding, and provides a battery sealing nail welding defect repairing method. The repairing method comprises the following steps: acquiring an aluminum wafer of which the diameter is greater than that of a liquid injection hole of the battery top cover; removing the sealing nail at the liquid injection hole of the top cover of the battery; cleaning a liquid injection hole area; carrying out penetration type stitch welding by taking the wafer as an upper layer and the battery top cover as a lower layer to form a welding seam for melting the wafer and the battery top cover into a whole; and treating the welding seam and the wafer, enabling the outer surface of the wafer to be flush with the outer surface of the battery top cover, and enabling the liquid injection hole area not to be visually recognized. According to the repairing method, the aluminum wafer and the battery top cover are subjected to penetration stitch welding, and the welding seam and the surface of the wafer are treated, so that the welding defect of the sealing nail is repaired, the situation that the battery is degraded and scrapped due to poor welding or appearance defect of the sealing nail is avoided, and the quality requirement of the battery is met.

The utility model discloses an automobile silencer shell, and relates to the technical field of automobile silencers. Comprising a lower shell and an upper shell, a lower side plate and an upper side plate are formed at the two ends of the lower shell and the two ends of the upper shell respectively, and semicircular grooves are formed in the opposite sides of the lower side plate and the upper side plate; turnups are formed on the two sides of the lower shell and the two sides of the upper shell respectively. A plurality of vertical supporting reinforcing ribs are formed on the inner side of the lower side plate. Preferably, the lower shell and the upper shell are both formed by punching stainless steel plates. Preferably, outer inclined planes are formed on the inner sides of the turnups, and a V shape is formed between the outer inclined planes of the two turnups on the same side. According to the utility model, the lower shell and the lower side plate as well as the upper shell and the upper side plate are formed by stamping, the joints are fixed by welding, and after the lower shell is impacted upwards, the side plates on the two sides are integrally formed, so that the cracking of the side plates and the shell under the impact force can be effectively prevented, and the service life of the silencer is prolonged.

This utility model discloses a stator, motor, and vehicle, relating to the field of motor technology. The stator includes a stator core and multiple flat wire structures. Each flat wire structure has two connecting ends. At least one connecting end has an end face that exposes the core wire of the flat wire structure to the insulation layer, and two adjacent exposed side faces. One of the two exposed side faces is a mating surface, and the other is a welding surface. The two connecting ends are intersected and welded together. One of the mating surfaces is stepped to form a contact surface and a stepped surface that is angled to the contact surface and faces the end face. The contact surface is used to fit against the mating surface of the other flat wire structure, and the welding surface is used to be adjacent to the welding surface of the other flat wire structure. A weld is formed at the junction of the two welding surfaces, and the stepped surface is located at one end of the weld. This design can block the laser beam during laser welding, improving product reliability.

A diverter with high welding stability comprises a manganin plate, two wiring terminals are arranged on the upper side of the manganin plate, the left side and the right side of the manganin plate are connected with a first red copper plate and a second red copper plate respectively, the second red copper plate comprises a base part, the right side of the base part is provided with an extending part which inclines and bends backwards, the wiring terminals are L-shaped plates, and the thickness of the L-shaped plates is smaller than that of the manganin plate. The lower side of a vertical plate of the L-shaped plate is connected with the manganese-copper plate, the upper side of the vertical plate is connected with a transverse plate, the first red copper plate comprises a first part and a second part which are connected left and right, the rear sides of the first part and the second part are flush, the thickness of the first part is smaller than that of the second part, and a notch penetrating through the second part in the front-back direction is formed in the position, corresponding to the joint with the first part, of the upper side of the second part. When the shunt is welded with a wire and other components, the welding precision is high, and the welding stability is good.

The invention discloses a large cylindrical lithium battery negative collector plate and an ultrasonic point bottom welding method. The large cylindrical lithium battery negative collector plate comprises an ultrasonic welding needle, an ultrasonic welding needle protruding welding head, a roll core, a steel shell, an ultrasonic welding bottom film, a collector plate and a laser welding groove. The steel shell is made of SPCC, the collector plate is round or strip-shaped, the collector plate is made of pure copper T2, the hardness of the collector plate is M-state HV48-59, the collector plate is plated with nickel on a single side, and the collector plate is used for preventing laser high reflection, an ultrasonic spot bottom welding surface is not plated with nickel, and self-discharge abnormity caused by nickel powder generated by ultrasonic spot bottom welding high-frequency vibration is prevented. And nickel plating affects the hardness of the collector plate and prevents the hardness from affecting the ultrasonic point bottom welding strength. According to the invention, the resistance and the point bottom pseudo soldering rate are reduced, the point bottom welding strength and the welding area are increased, so that the internal resistance of the battery is reduced to achieve the purpose of low charge-discharge temperature rise, the safety performance is improved, and high-rate charge-discharge can be realized; and the problem of rusting at a laser penetration welding shell bottom weld bead is solved.

The invention belongs to the technical field of photovoltaic power generation, and provides an integrated power generation panel and a production method thereof.The integrated power generation panel comprises a plurality of power generation panels, and each power generation panel is of a stacked structure; the laminated structure comprises a front plate, a first packaging adhesive film, a battery string, a second packaging adhesive film, an insulating layer, a third packaging adhesive film and a rear plate which are laminated in sequence; bending parts are arranged on the two sides of the rear plate; when the power generation panels are integrated, the adjacent power generation panels are in lap joint through the bending parts. According to the power generation panel, a color steel tile roof and a building wall surface are directly replaced by the rear plate, meanwhile, a corrugated structure is arranged, the power generation panel has the technical characteristics of being convenient and fast to install, safe and durable in structure, resistant to impact, waterproof, fireproof, beneficial to later maintenance and the like, and the panel is low in overall investment cost, short in recovery period, attractive in appearance, simple in process and capable of being industrially popularized.

The utility model provides a packaging structure, which comprises a chip structure, a gasket and a plurality of bump structures. Wherein the gasket is located on the chip structure and used for making contact with the ejector pin, the protruding block structures are distributed on the chip structure at intervals, the gasket and the protruding block structures are located on the same side of the chip structure, and the protruding block structures are distributed around the gasket. Therefore, the gasket is arranged on the chip structure and is used for being in contact with the ejector pin, so that the gasket can be used for protecting the chip structure when the ejector pin jacks up the packaging structure, and the ejector pin can jack up a certain height on the basis, so that the die bonder can easily pick up the packaging structure, and the pick-up abnormity can be improved.

The invention discloses a commercial vehicle second-row seat fixing structure which comprises a vehicle body bottom plate, a safety belt fixator and seat legs arranged on the front face of the vehicle body bottom plate, a cross beam fixed to the back side of the vehicle body bottom plate, a seat fixing groove box fixed between the cross beam and the vehicle body bottom plate, and a right longitudinal beam and a left longitudinal beam fixed to the bottom of the cross beam. One end of the right longitudinal beam and one end of the left longitudinal beam are fixed on the back of the cross beam, the other end of the right longitudinal beam and the other end of the left longitudinal beam are fixed on the back of the vehicle body bottom plate, a first safety belt fixing groove box is fixed inside the right longitudinal beam, and a second safety belt fixing groove box is fixed inside the left longitudinal beam. The structure disclosed by the invention adopts a groove box structure, so that the stress area of fixed point positions of the seat and the safety belt is increased, and the phenomenon of stress concentration is avoided, so that the seat and the safety belt are separated and fixed, and personal injury is avoided; part of Z-direction shearing force is converted into tensile stress in the horizontal direction, concentrated loads are reduced, plastic deformation and even tearing damage of components are avoided, and the strength of the seat and safety belt assembly and the safety of passengers are improved.

The invention relates to the technical field of compressors, in particular to a copper-iron composite pipe which comprises a connecting pipe, an iron pipe used for being connected with a compressor is arranged on one side of the connecting pipe, the side where the iron pipe is located is defined as the left side, a copper pipe in butt joint with the iron pipe is arranged on the right side of the iron pipe, and the iron pipe and the copper pipe are connected through welding. A plurality of trapezoidal grooves are formed in the inner wall of the right end of the iron pipe, a plurality of trapezoidal blocks matched with the rectangular grooves are arranged on the peripheral surface of the left end of the copper pipe, and the trapezoidal grooves and the trapezoidal blocks are riveted with each other to enhance the connection strength between the copper pipe and the iron pipe; the connecting pipe is arranged to be a pipeline formed by butting an iron pipe and a copper pipe, so that the connecting pipe can be welded between same materials, the situation that welding is not firm due to different melting points between different materials is avoided, and the manufacturing cost of the connecting pipe can be reduced while the welding quality is improved; and through arrangement of the trapezoidal grooves and the trapezoidal blocks, the connection strength between the copper pipe and the iron pipe can be enhanced, and the welding quality between the copper pipe and the iron pipe is improved.

The present invention provides a welding structure, a flexible pipe and a manufacturing process, wherein the welding structure comprises: a pipe body; a connector, which is sleeved on the outside of the pipe body, and the inner side of the connector has a welding portion for welding the pipe body and the connector. Since the welding surface is located inside the welding portion and the pipe body, no turning process is required after welding. Compared with the prior art, the processing steps are reduced, the production efficiency is greatly improved, and during welding, the positioning structure for positioning the position between the connector and the pipe body is reduced, thereby reducing the production cost.

The invention relates to the technical field of metal fitting brazing, and specifically discloses a metal fitting welding device, comprising: a feeding device, the feeding device is used to make a metal plate one be tilted and transported in a front-to-back direction; a clamping mechanism is used to clamp a metal plate two and move in a left-to-right direction, and the metal plate two is kept perpendicular to the metal plate one; a cutting device is used to open a groove in the left-to-right direction on the top surface of the metal plate one, and to open a right-angle groove at the bottom end of the front side surface of the metal plate two; the metal plate two moves to the left until the left and right ends of the metal plate one and the metal plate two are aligned, and a wire feeding mechanism transports the brazing material into the groove; the right-angle groove and the groove are combined into a receiving groove for accommodating the brazing material; in the metal fitting welding device of the invention, the brazing material is transported into the receiving groove for accommodating the brazing material, which is formed by combining the groove and the right-angle groove, so that the molten brazing material enters the gap between the metal plate one and the metal plate two.

The utility model relates to a battery and electric equipment. The battery comprises a shell, the battery cell assembly is positioned in the shell; an adapter sheet; the top cover assembly is arranged at the opening of the shell, the top cover assembly comprises a cover plate, a pole and an insulating component, the pole is arranged on the cover plate, the insulating component is connected with the cover plate, the pole is connected with the switching piece, and a pole welding area is arranged at the position, connected with the pole, of the switching piece; the insulating component comprises a first insulating part and a second insulating part, the second insulating part is rotationally connected with the first insulating part, a hollow area is arranged on the second insulating part, and the hollow area and the projection of the pole welding area in the height direction of the battery are at least partially overlapped. According to the utility model, the insulation component can be prevented from being molten due to high temperature, so that the molten fragments are prevented from falling to the battery core assembly to cause fire, the safety problems such as short-circuit fire and the like of the battery are effectively avoided, and the qualification rate in battery production can be improved, so that the scrap ratio of the battery is reduced.

The utility model relates to a novel monorail crane flange and a monorail crane mounting structure. Comprising a connecting plate, a guide protrusion matched with a groove in the monorail crane track is arranged at the bottom of the connecting plate, a reinforcing protrusion extending into the groove in the monorail crane track is arranged on one side of the guide protrusion, the top end of the reinforcing protrusion extends upwards to the connecting plate, and a plurality of connecting holes are formed in the connecting plate at intervals in the transverse direction and the longitudinal direction; through the structural design of the novel monorail crane flange, the technical problems that when an existing monorail crane flange is connected with a monorail crane, the number of welding spots is large, the welding area is small, and the connection stability is poor are solved.