14results about How to "Increase the welding area" patented technology

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.

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 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 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.

This utility model relates to the field of automotive anti-collision beam technology, and more particularly to an aluminum alloy front anti-collision beam and tow hook tube installation structure, as well as an automobile. It includes an anti-collision beam body, a tow hook tube, and an energy-absorbing box. A tow hook reinforcing flange is fixedly provided at the rear end of the tow hook tube, and the tow hook reinforcing flange is fixedly connected to the rear side of the anti-collision beam body via a first connector. The front end of the tow hook tube passes through and extends out of the anti-collision beam body. The front end of the energy-absorbing box is fixedly connected to the tow hook reinforcing flange, and the front end of the energy-absorbing box is fixedly connected to the rear side of the anti-collision beam body. The beneficial effects of this utility model are: avoiding damage to the anti-collision beam body due to an excessively small connection surface between the tow hook tube and the anti-collision beam body; simultaneously, the tow hook reinforcing flange is fixedly clamped between the energy-absorbing box and the anti-collision beam body, improving the overall anti-collision performance and preventing damage to the anti-collision beam body during towing.

The utility model relates to a kind of cutting circular saw blade special for high-pressure composite pipe, including saw blade body, the circumferential side of saw blade body is evenly distributed with several groups of tooth profile, the tooth profile is designed as periodic combination, it is arranged in order as flat tooth-left helical tooth-right helical tooth-left helical tooth-right helical tooth, every 5 teeth a group, the whole circular saw blade is made of 16 groups of teeth total tooth number 80 teeth, the circumferential side of saw blade body is evenly provided with 80 recesses for the insertion of cutter head, the cutter head is welded in the recess by three sides. The main deflection angle ε of left helical tooth and right helical tooth is designed as 5 °, the radial difference Hd of flat tooth, left helical tooth and right helical tooth is designed as 0.2mm. It is mainly used for cutting of high-pressure steel wire winding high-pressure composite pipe (such as mine hydraulic support, oilfield development, engineering construction and other high-pressure hydraulic system in conveying pipeline), significantly reduce cutting resistance, eliminate cutter head fracture, shedding, jam and cracking risk, improve service life and safety.

This utility model discloses a high-brightness Micro-LED lamp bead, comprising: a base, an LED chip substrate, a light-transmitting component, and a conductive component. The LED chip substrate is disposed within the inner cavity of the base; the light-transmitting component is disposed on the top of the base and serves to protect the LED chip substrate from light transmission; the conductive component serves to conduct electricity to the LED chip substrate and includes multiple pads disposed at the positive and negative ends of the LED chip substrate; multiple sets of pins are symmetrically disposed at the bottom of the base, and locking parts for connecting the pads are provided at the bottom of the pins; this utility model uses locking parts at the connection between the pins and the pads to fix the pins and pads. Compared with the direct planar contact solder bonding of the pins and pads, the locking parts of this design increase the welding surface area between the pins and the pads, allowing the solder to wet the interface between the pins and the pads, thereby improving the mechanical bonding force of the pins and reducing the possibility of the solder joint falling off due to vibration.

The utility model discloses a nickel-hydrogen battery structure with a stable assembly structure, which includes a housing, an end cover, a core assembly and a nickel cup. The core assembly is arranged inside the housing, and the nickel cup is arranged between the end cover and the core assembly; a dividing cut is further formed at the bottom of the nickel cup for dividing the bottom of the cup into several welding parts, and each welding part is provided with a cup body protrusion, and the cup body protrusion is welded to the pole ear of the core assembly. In this way, by forming a plurality of welding parts with cup body protrusions through the dividing cut on the nickel cup, when installing, the cup body protrusions on the welding parts are inserted between the pole ears of the core assembly, increasing the contact area between the nickel cup and the pole ears, shortening the current path of the positive and negative double needles of the electric welding, having stronger conductivity, high safety and extended service life; through the larger welding area between the nickel cup and the core assembly and the end cover, the overall welding structure strength is improved, avoiding the risk of solder joint disconnection caused by directly welding the end cover on the core assembly in the traditional process.

The application provides a battery monomer, a battery and a power utilization device. The battery monomer comprises: a shell (10) comprising a first wall; an electrode assembly (4) arranged in the shell (10), the electrode assembly (4) comprising an electrode main body (41) and a tab, and the tab being led out from the electrode main body (41); and a terminal assembly (3) comprising a connecting piece (31) and at least two terminals (30), the at least two terminals (30) are arranged on the first wall, the connecting piece (31) is arranged at least partially around the at least two terminals (30), the terminal (30) is arranged at least partially between the connecting piece (31) and the first wall along the thickness direction of the first wall, the connecting piece (31) is connected with the first wall, and the terminal (30) is electrically connected with the corresponding tab.

This invention proposes a cylindrical battery and its manufacturing method, comprising a positive electrode current collector, a negative electrode current collector, and a core. One end of the core is provided with a positive electrode tab group and a negative electrode tab group. The positive electrode tab group includes multiple positive electrode tab clusters, and the negative electrode tab group includes multiple negative electrode tab clusters. Both the positive and negative electrode tab clusters are distributed in a stepped manner from the outer radial direction of the core towards the center, and both clusters are concentric arc structures. The outer wall of the positive electrode current collector is provided with multiple positive electrode soldering areas, which are adapted to and connected to the arc-shaped inner wall of the positive electrode tab clusters. The outer wall of the negative electrode current collector is provided with multiple negative electrode soldering areas, which are adapted to and connected to the arc-shaped inner wall of the negative electrode tab clusters. In this invention, the current collector and tabs are vertically welded, avoiding the covering of gaps between electrode sheets after the tabs are flattened. This facilitates the penetration of electrolyte into the core from non-tab areas, improving the wetting efficiency of the electrolyte within the core.

The application relates to a fine wire winding and welding machine, and relates to the technical field of wire welding equipment. The fine wire winding and welding machine comprises a wire stripping mechanism, a welding mechanism and a feeding mechanism. The welding mechanism comprises a wire winding assembly. The wire winding clamp in the wire winding assembly is composed of a pneumatic element, a clamp piece, a return spring and a fixing seat. The clamp piece comprises a first clamp block and a second clamp block which are provided with positioning shaft shoulders. The welding mechanism comprises a wire welding arm and a wire stripping arm. A spot welding gun and a striking rod are arranged on the wire welding arm. The end of the wire stripping arm is provided with a ceramic seat with a through hole. The ceramic ring in the through hole is in the form of an open ring, so that the fine wire can pass through the ceramic ring conveniently. The wire winding driving assembly adopts an electric sliding table. The wire stripping arm and the wire welding arm are slidably connected through sliding rails. The wire stripping mechanism comprises a wire stripper which is provided with a wire running seat, a wire extruding plate, a wire extruding wheel, a wire stripping knife and a plurality of auxiliary components, so that the fine wire can be processed accurately and welded efficiently. The application can improve the firmness of fine wire welding and ensure the quality of wire welding.

The utility model discloses a kind of connectors, including main body, is equipped with at least two hole positions, and at least two lines are matched with hole position;At least two lines are independently arranged in main body, each line includes two series resistances;One terminal is welded with one of two resistances;One spring piece terminal is welded with another of two resistances;Spring piece terminal is connected with wire frame at the end away from resistance, wire frame is movably connected with button, and pressing button can drive spring piece terminal and wire frame conduction. The utility model only needs to insert multimeter pen into any two hole positions, forms detection loop, without disassembling line, improves detection efficiency;Whether line is abnormal is judged by multimeter reading;Two resistances are arranged in each line, form voltage division detection circuit, avoid overloading damage equipment when detecting;Button linkage spring piece terminal can realize quick wiring, suitable for frequently detected scene;Independent line layout is convenient for fault location and maintenance.

This invention relates to a wind power foundation for on-site expansion, comprising an anchor bolt foundation ring fitted outside the original foundation ring. The anchor bolt foundation ring includes a lower anchor plate, an upper anchor plate used in conjunction with the lower anchor plate, and several prestressed anchor bolts connecting the upper and lower anchor plates. Several sets of coupling steel components I are uniformly fixed circumferentially to the connection between the lower anchor plate and the original foundation ring. Coupling steel components II are welded to the outer side of the lower anchor plate at positions corresponding to the coupling steel components I. Multiple sets of U-shaped connectors with their free ends anchored in the original foundation are uniformly arranged along the length of the coupling steel components I and II. Reinforcing mesh is distributed at the original foundation, the outermost position of the coupling steel components II, the position where the coupling steel components II connect to the lower anchor plate, and the position where the coupling steel components I connect to the original foundation ring. This expansion foundation expands and reinforces the original wind farm on-site, making full and effective use of the original foundation and reducing the construction period and construction costs.