363results about How to "Reduce welding difficulty" patented technology

The cover plate assembly comprises a cover plate, a pole and a connecting piece, the pole is mounted on the cover plate, the connecting piece comprises a pole connecting part and a tab connecting part, the pole connecting part is connected with the pole, a first insulating part is arranged between the pole connecting part and the cover plate, the first insulating part is provided with a hook part, and the hook part is connected with the pole connecting part. The pole connecting part is clamped with the clamping hook part, and an anti-cracking notch is formed in the position, close to the tab connecting part, of the pole connecting part. According to the utility model, the pole connecting part can be clamped through the clamping hook part so as to limit the connecting sheet to droop and fall off under the action of external force, and the stress at the joint of the pole connecting part and the tab connecting part is released through the anti-cracking notch so as to avoid stress concentration, so that the tab connecting part is not easy to break; therefore, the shock resistance and the vibration resistance of the connecting piece are improved, the battery is not easy to lose efficacy, and the use performance is good.

The present disclosure provides an implanted nerve stimulator electrode for an implanted nerve stimulation system, the implanted nerve stimulator electrode being adapted to be at least partially implanted into a human body and receiving an electrical signal from an implanted pulse generator to apply electrical stimulation to the human body. An implanted nerve stimulator electrode includes an elongate body, a plurality of wires, and at least one nerve stimulation contact structure. The nerve stimulation contact structure is in a hollow sleeve shape and is suitable for being arranged on the main body in a sleeving mode. Each nerve stimulation contact structure comprises at least two contacts, and when the nerve stimulation contact structures are arranged on the main body in a sleeving mode, each contact on the nerve stimulation contact structure is electrically connected with one corresponding wire. After the nerve stimulation contact structure provided by the invention is sleeved on the main body, an operator can weld the corresponding wire to the contact under the condition of no shielding or little shielding, so that the welding difficulty from the contact to the wire is reduced. And the production efficiency is improved.

The invention discloses an aero-engine flame tube head assembly welding clamp and welding method.The aero-engine flame tube head assembly welding clamp comprises a supporting assembly, an outer pressing assembly, a positioning assembly, an inner pressing assembly and an adjusting piece, the outer pressing assembly is arranged on the supporting assembly, and the positioning assembly comprises a positioning bottom plate and a positioning cone; the positioning bottom plate is in inserted fit with the supporting assembly in the vertical direction and forms a datum plane arranged in the horizontal direction, the outer wall face of the positioning cone is used for profiling an inner cone of the head of the flame tube so as to support a flow guide plate and further cooperate with the head of the flame tube to position the flow guide plate, and the inner pressing assembly is used for pressing and fixing the flow guide plate. The adjusting piece is used for adjusting a gap between two adjacent guide plates; compared with the prior art, one-time clamping and welding of a plurality of flow guide plates are achieved, the consistency of the flame tube head assembly is good, the welding efficiency is high, it can be ensured that the key size of the flame tube head assembly is qualified when the flame tube head assembly is welded and assembled, and the welding difficulty is greatly reduced.

The invention discloses an automatic welding device and method suitable for a saddle-shaped welding seam, and belongs to the technical field of saddle-shaped welding seam machining.The automatic welding device comprises a main pipe, a branch pipe, a positioner, a supporting assembly, a welding robot, a battery module and an overall control and simulation analysis system.The main pipe is erected on the positioner and the supporting assembly, and the branch pipe is perpendicular to the outer surface of the main pipe; the cutting angle of a hole groove in the lower end of the branch pipe and the cutting angle of a hole groove cut in the wall thickness direction of the main pipe are both 30 degrees, a gap is reserved between the two hole grooves, a welding gun, a contact sensor and a laser scanning device are arranged at the front end of the welding robot, and an arc voltage tracker for monitoring welding voltage in real time is arranged in the battery module. The working mode of continuous automatic welding can be achieved for pipelines with different wall thicknesses, manual operation is avoided, the labor cost is reduced, time and labor are saved, the welding difficulty is reduced, the welding efficiency is improved, and the safety risk is reduced.

The invention relates to the technical field of LED display, and discloses a Mini / Micro LED and a manufacturing method thereof. The manufacturing method comprises the following steps: preparing metal conductive particle balls through a mechanical separation process or a spraying process; coating an insulating coating on the surface of the metal conductive particle ball and air-drying to form an insulating film; putting the metal conductive particle balls coated with the insulating films into provided insulating glue and stirring to form anisotropic conductive glue; printing anisotropic conductive adhesive on a bonding pad of the provided substrate through the provided hydrophobic nano steel mesh; stripping the hydrophobic nano steel mesh; the provided Mini / Micro LED chip is mounted on the anisotropic conductive adhesive located on the bonding pad, the insulating film is longitudinally broken by heating and pressurizing to expose the metal conductive particle balls wrapped in the insulating film, the metal conductive particle balls are respectively in contact with the Mini / Micro LED chip and the bonding pad to form a vertical conductive path, and the insulating adhesive is preliminarily cured to obtain the Mini / Micro LED, so that stable welding quality is realized; and the maintenance difficulty and the maintenance cost are low.

The invention discloses a street lamp pole head welding device and method with a clamping adjusting structure, and particularly relates to the technical field of welding. The street lamp pole head welding device comprises a machining table, two clamping mechanisms are symmetrically installed on the two sides of the upper surface of the machining table, and two lamp pole bodies are correspondingly limited on the two clamping mechanisms; the splicing action of the two lamp pole bodies is completed through the two clamping mechanisms, and a welding mechanism is installed in the middle of the upper surface of the machining table. The end faces of the two lamp pole bodies are subjected to rapid circumferential rotation grinding machining through the end face grinding unit, the consistency of the butt joint faces of the lamp pole bodies is guaranteed, the problem that the welding quality is affected by unevenness is avoided, welding machining is completed on the two lamp pole bodies through the movable welding unit, and the welding efficiency is improved. The follow-up cleaning unit can be in linkage fit with the movable welding unit, active cleaning operation is completed in front of the welding path of the movable welding unit, the welding face is kept clean, the welding quality is improved, and the welding stability is improved.

The invention belongs to the technical field of batteries, and particularly relates to a single battery, a battery and a power utilization device, the single battery comprises: a shell having an accommodating cavity; the top cover is used for buckling the opening of the shell; the battery cell is accommodated in the accommodating cavity, and a tab is arranged at one end, facing the top cover, of the battery cell; the current collecting plate is accommodated in the accommodating cavity and is positioned between a tab of the battery cell and the top cover, and the current collecting plate is provided with a first area and a second area arranged around the first area; wherein the second area protrudes towards the opening relative to the first area, so that a boss is formed on the side, facing the opening, of the flow collecting disc, the boss is located between the shell and the top cover, the boss and the shell are welded to form a first welding part, and the first welding part is located on the side, facing the opening, of the flow collecting disc. The boss and the top cover are welded to form a second welding part, and the first area is electrically connected with the tab; the welding stress is effectively dispersed, and the welding difficulty is reduced.

The invention relates to the technical field of pipeline machining, in particular to a hydraulic engineering pipeline cutting and welding integrated device which comprises a mounting base, two clamping seats are arranged at the top of the mounting base, circular through grooves are formed in the clamping seats, and clamping and fixing mechanisms are connected into the circular through grooves. An opposite moving mechanism is connected between the two clamping seats, two fixing frames are fixedly connected to the top of the mounting base, and a cutting machine is arranged in each fixing frame; the distance between the welding gun and the pipeline is kept synchronous all the time under the action of the elastic receding mechanism, and when the pipeline is subjected to slope cutting and the cutting face is oval, the welding gun can still keep the same moving distance under the oval moving track, so that the welding effect of the pipeline is improved, and the welding efficiency is improved. And the welding difficulty caused by the change of the pipeline cutting angle is reduced.

The utility model discloses an alignment fixer for pipe processing, which comprises a base, a butt joint mechanism is arranged in the base, a fixing plate is arranged at the top of the butt joint mechanism, a cylinder is rotatably mounted in the fixing plate through a bearing, and fixing mechanisms are arranged at two ends of the cylinder. According to the alignment fixator for pipe machining, four pressing blocks can move close to each other or move away from each other by pushing a push rod, so that pipes with different diameters can be rapidly fixed, the working efficiency is improved, the central axes of the two fixed pipes can be consistent, and the alignment fixator for pipe machining is convenient to use and high in practicability. By starting the servo motor, the ends of the two fixed pipes can be in butt joint, the two butt-joint pipes can be driven to rotate by starting the two rotating motors, and therefore welding personnel can conveniently hold a welding gun to conduct welding at one position, the welding difficulty is lowered, and the working efficiency is improved.

The invention discloses a manufacturing method of an impact type rotating wheel of a tailor-welded hub and square-head special-shaped water bucket composite welding structure. Compared with main manufacturing technologies such as integral forging numerical control machining manufacturing, traditional bucket and hub forge welding manufacturing and electric arc additive manufacturing of the impulse turbine runner in the current industry, the material utilization rate and the welding efficiency are improved, the difficulty of forging and automatic welding is reduced, the comprehensive performance of a high-stress area structure of the runner is improved, and the manufacturing cost is reduced. The method has outstanding advantages in the aspects of manufacturing cost and efficiency.

The invention relates to the technical field of LED display, and discloses a welding method of an LED chip of a Mini / Micro LED. The welding method comprises the steps that a provided hydrophobic nano steel mesh with a plurality of steel holes is placed on a provided substrate with a plurality of bonding pads and aligned, so that each steel hole is aligned with each bonding pad correspondingly; adding the provided anisotropic conductive adhesive to the hydrophobic nano steel mesh, and uniformly blade-coating the anisotropic conductive adhesive on the hydrophobic nano steel mesh, so that the anisotropic conductive adhesive is printed on the bonding pad; stripping the hydrophobic nano steel mesh; mounting the provided LED chip on the anisotropic conductive adhesive on the bonding pad; and heating and pressurizing the LED chip positioned on the anisotropic conductive adhesive, so that the insulating film is longitudinally broken to expose the metal conductive particle balls wrapped in the insulating film, the metal conductive particle balls are respectively in contact with the LED chip and the bonding pad to form a vertical conductive path, and the insulating adhesive is preliminarily cured, so that the LED chip is welded on the substrate. The welding quality is stable, the maintenance difficulty is small, and the maintenance cost is low.

The invention relates to the technical field of battery processing, and discloses cylindrical battery welding equipment and a welding method.The cylindrical battery welding equipment comprises a rotating assembly, a welding assembly, a welding assembly and a welding assembly, and the rotating assembly is provided with a longitudinal center shaft and suitable for rotating around the longitudinal center shaft; the plurality of battery carriers are arranged around the rotating assembly, and the rotating assembly rotates to drive the plurality of battery carriers to rotate around the longitudinal central shaft; the battery carrier is used for clamping a battery, and the axis of the battery carrier has a return state parallel to the longitudinal center shaft and an inclined state enabling the top of the battery to be far away from the longitudinal center shaft relative to the bottom of the battery. And the welding module is suitable for welding the battery when the battery carrier is in the inclined state. According to the cylindrical battery welding equipment provided by the invention, when the battery carrier is in an inclined state, flying welding can be realized more easily, meanwhile, the battery is matched for autorotation, the welding track of the welding module can be ensured to be an arc line, the track is simple, and the welding difficulty is further reduced.

The invention provides a welding method for a circumferential weld of a barrel and application, and belongs to the field of pipeline welding. The welding method comprises the following steps: 1) preparing accessories; (2) preparation before welding is conducted, specifically, an assembling gap is set, a welding groove is formed, and a truncated edge is formed; wherein when the wall thickness t of the cylinder is larger than or equal to 10 mm and smaller than or equal to 40 mm, the assembly clearance g is 3-10 mm; wall thickness tgt; when the thickness is 40 mm, the assembly clearance g is 0 mm; a single V-shaped groove or a double V-shaped groove is formed; the groove angle theta of the single V-shaped groove ranges from 35 degrees to 40 degrees; the angle theta of an upper groove of the double-V-shaped groove is 30-35 degrees, and the angle alpha of a lower groove of the double-V-shaped groove is 35-40 degrees; (3) single-pass welding is conducted on the circumferential weld of the cylinder through a gas-electric welding method; in the welding process, carbon dioxide gas shielded welding is adopted for welding; and (4) post-welding treatment. Gas electric welding and single-pass welding are adopted, the welding defects of the circumferential weld of the cylinder are reduced, and the welding quality and efficiency are improved.

The utility model belongs to the technical field of tailor-welding equipment, and particularly discloses a robot welding tool for a hard pipe in a hydraulic pipeline system. The welding tool comprises a bottom plate, a mounting box, a first fixing set and a second fixing set. The bottom plate is horizontally arranged; the mounting box is arranged on the bottom plate and is provided with two parallel vertical plates; the first fixing set and the second fixing set each comprise a limiting piece arranged on the bottom plate, a supporting piece arranged on the mounting box and a pressing piece, two pipe openings of the hard pipe are limited and fixed through the two fixing sets, and tailor-welding machining of the two ends of the hard pipe and the connecting pieces can be achieved. The hydraulic hard pipe welding device can greatly improve the welding efficiency of hard pipes, ensure the welding quality, guarantee the size requirement of products and reduce the production cost, and can be widely used for machining different complex hydraulic hard pipe pipelines.

The utility model discloses a novel circular tube welding fixture which comprises a rack assembly and a fixture assembly, the fixture assembly is located in the rack assembly, the fixture assembly comprises a clamping frame, an inner groove, a gear ring, a sliding groove, a bottom groove, a sliding block, an electric rod, a supporting ring, an infrared emitter, an infrared receiver and a fixing pin, the clamping frame is annular, the inner groove is located in the clamping frame, and the gear ring is located in the bottom groove. An inner groove and a sliding groove are formed in the inner circumferential face of the clamping frame, and a gear ring is arranged in the inner groove in a sliding mode. By means of the structure, a plurality of devices are combined for use, round pipes are placed in the clamping frames, the supporting rings jack up the round pipes and enable the round pipes to be centered, the infrared emitters and the infrared receivers between every two round pipes are combined for use, the two round pipes are kept horizontal, the motor is used for driving the gear ring to rotate, and welding operation can be completed without moving of operators. Welding efficiency is improved, welding difficulty is reduced, and welding quality is improved.

The utility model provides an auxiliary device for repairing construction of a trenchless pipeline lining. The auxiliary device for repairing construction of the trenchless pipeline lining comprises a transportation track, a transportation assembly and a splicing assembly, the transportation track is arranged in the pipeline and is parallel to the whole axial line of the pipeline, and the transportation track is arranged at the top of the middle guide pipe; the conveying assembly is movably arranged on the conveying rail, the splicing assembly is arranged on the conveying assembly, and the splicing assembly clamps and adjusts the lining pipe pieces to preset positions to splice and install the lining pipe pieces so as to form the repaired lining ring pieces. The utility model relates to the technical field of urban pipeline non-excavation repair construction, and can solve the problem that lining pipe pieces are difficult to transport and splice in the prior art.

The invention provides an endoscope camera assembly, a welding process thereof and an endoscope, the endoscope camera assembly comprises a camera module, a PCB, a coaxial line and a positioning wire clamp, the positioning wire clamp is arranged between the coaxial line and the PCB, the positioning wire clamp is provided with a plurality of threading holes correspondingly communicated with electric connection parts on the PCB, and before welding, the coaxial line is connected with the PCB through the threading holes. The plurality of core wires on the coaxial line can sequentially pass through the plurality of threading holes to be pre-positioned with the corresponding electric connection parts on the PCB, so that the core wires and the electric connection parts can be aligned and electrically connected conveniently, and then the plurality of core wires on the coaxial line are aligned and electrically connected with the corresponding electric connection parts on the PCB one by one, so that the welding difficulty is reduced, and the welding efficiency is improved. And automatic welding machining can be conveniently achieved, the labor intensity of workers in the production process of the endoscope camera assembly can be effectively reduced, the production efficiency of the endoscope camera assembly is improved, and good application prospects are achieved.

The utility model provides an electronic component welding device, which relates to the technical field of electronic component welding, and comprises a base and a support plate, the top of the support plate is symmetrically provided with chutes, the bottom of the support plate is symmetrically and fixedly provided with connecting blocks, the top of the support plate is provided with a clamping mechanism, and the top of the base is provided with a rotating mechanism. According to the utility model, the circuit board is placed between the two moving blocks for electronic component welding, and the circuit board can be fixed by rotating the bidirectional threaded rod to cooperate with the two moving blocks, so that the circuit board is effectively prevented from shaking or displacing in the welding process, the welding difficulty is reduced, and meanwhile, the circuit board is prevented from being damaged in the fixing process. The clamping block firstly contacts with the side surface of the circuit during welding of the electronic element, and the circuit board can be effectively clamped by matching with the incomplete contraction state of the spring electronic element during welding, so that the circuit board deformation caused by improper force of welding personnel can be effectively avoided.

The invention belongs to the field of nuclear power, and discloses a method for controlling butt welding straightness of a thick-wall stainless steel pipe, which comprises the following steps of: processing a welding groove of the stainless steel pipe; the machined steel pipe is assembled; spot welding and fixing; rotating the workpiece to measure the rotation jerk value of the workpiece, and recording a first displacement value; backing welding is conducted on a weld joint; repeating displacement value measurement again to obtain a second displacement value; the two displacement values are compared, and the straightness deformation direction and size after one weld joint is welded are determined; the welding starting position is adjusted to the reverse side where the welding deformation direction is determined; carrying out filling welding; and repeating the second displacement value acquisition until the stainless steel pipe is welded. A special weld groove is used, gapless assembly is performed, and a specific spot welding process is matched; according to the method, an automatic argon arc welding method is used, welding deformation of each welding seam is monitored in the welding process, and the direction of an arcing point of the next welding seam is controlled according to the current deformation direction, so that the straightness of the large-wall-thickness stainless steel pipe after butt welding is controlled.

The invention discloses an automatic welding device and method suitable for saddle-shaped welds, which belongs to the technical field of saddle-shaped weld processing, and comprises a main pipe, a branch pipe, a positioner, a support assembly, a welding robot, a battery module and an overall control and simulation analysis system, wherein the main pipe is mounted on the positioner and the support assembly, the branch pipe is perpendicular to the outer surface of the main pipe, the cutting angles of the hole groove at the lower end of the branch pipe and the hole groove cut in the wall thickness direction of the main pipe are both 30°, and a gap is left between the two hole grooves, a welding gun, a contact sensor and a laser scanning device are arranged at the front end of the welding robot, and an arc voltage tracker for real-time monitoring of the welding voltage is arranged in the battery module, and through the invention, a working mode of continuous automatic welding can be achieved for pipes with different wall thicknesses, manual operation can be avoided, labor costs can be reduced, time and labor can be saved, welding difficulty can be reduced, welding efficiency can be improved, and safety risks can be reduced.

The utility model provides environment-friendly welding equipment for manufacturing wave chambers, which relates to the technical field of wave chamber manufacturing and comprises a supporting base, a welding head and a wave web plate. The supporting part is arranged on the supporting bottom plate; the first adjusting part is arranged on the supporting part so as to adjust the position of the welding head; the second adjusting part is arranged on the first adjusting part and is matched with the first adjusting part so as to flexibly change the position of the welding head; and the clamping part is arranged on the supporting base. By arranging the first adjusting part and the second adjusting part, the welding head can be used for welding along an uneven connecting line, so that the welding difficulty is reduced; and meanwhile, by arranging the clamping part, the situation that the wave web moves in the welding process, and the welding quality is affected is avoided.

The utility model relates to the technical field of batteries, and discloses a cylindrical battery and a power plant, the cylindrical battery comprises a shell and a cathode cover plate, and the shell is provided with an open end; the negative electrode cover plate is arranged at the open end of the shell and comprises a cover plate body and a boss which is arranged on the periphery of the cover plate body and protrudes towards the side away from the shell, the boss comprises a connecting face and a first guide face, and the connecting face covers the outer end face of the open end of the shell and is fixedly connected with the shell. At least part of the first guide face abuts against the inner wall of the shell. According to the utility model, the connecting surface of the boss is matched with the outer end surface of the open end of the shell in an abutting manner, at least part of the first guide surface of the boss is abutted against the inner wall of the shell, and the negative electrode cover plate is fixedly connected with the shell through the boss, and plays a bidirectional limiting role in the axial direction and the radial direction at the same time, so that the assembling and positioning precision of the negative electrode cover plate is improved, and the service life of the negative electrode cover plate is prolonged. Therefore, welding difficulty is reduced, and product reliability is improved.

The embodiment of the invention discloses a cylinder assembling device of a cylinder mixer and a mounting method of a cylinder, a cylinder comprises a first cylinder and a second cylinder, the cylinder assembling device comprises at least two carrier rollers, at least two supporting rollers and a driving part, the two carrier rollers can be located on the two sides of the first cylinder respectively, the carrier rollers can move along with the first cylinder, and the driving part drives the first cylinder to move along with the second cylinder. The two supporting rollers can be located on the two sides of the second barrel correspondingly, the supporting rollers are used for supporting and rotating the second barrel so that the second barrel can be coaxially connected with the first barrel, and the driving part is connected with the supporting rollers and used for driving the supporting rollers to rotate. When the first barrel body and the second barrel body are connected, the first barrel body is driven by the driving piece to rotate, so that welding operation and barrel body rotation can be matched with each other, and a flat welding process can be adopted in the whole welding process. Therefore, the connection convenience and efficiency of the barrel are improved, the connection quality of the barrel is improved, and the installation and transportation cost of the barrel is reduced.

A box type guide rail of a hydraulic climbing device of a tower building machine comprises two side plates, a middle plate is arranged between the two side plates, and the middle plate and the side plates are connected in an inserted mode and then fixed in a welding mode to form the box type guide rail. The box-type guide rail aims to solve the technical problem of a box-type guide rail in a hydraulic climbing device of a tower building machine, a traditional box-type guide rail is difficult to weld and form and poor in consistency, an innovative structure that the middle plate and the side plates are welded after being connected in an inserted mode is adopted, the middle plate and the side plates are cut through laser, and matched plugs and insertion holes are designed; wherein a chamfer is arranged at the outer side end of the plug, so that the welding difficulty is successfully reduced, the consistency of each box type rail finished product is ensured, the production quality and efficiency of the box type guide rail are effectively improved, and reliable guarantee is provided for stable operation of a tower building machine.

The utility model relates to welding platform technical field, concretely is a kind of full hydraulic lifting type welding positioner.It includes chassis, movable frame and drive component, motor a is provided on chassis, motor a output end is provided with two-way screw rod;Two movable frames are oppositely arranged on two-way screw rod, two movable frames are all provided with hydraulic cylinder, two hydraulic cylinder outputs are all provided with mounting assembly, mounting assembly is coaxially provided with sprocket a and mounting disc on;Drive component is provided with one in two hydraulic cylinder outputs respectively;Drive component includes the mounting cylinder rotationally arranged in hydraulic cylinder output end, and multiple bull's eye bearings are arranged on tripod;Sprocket a and sprocket b are provided with chain.The utility model adjusts the orientation and height of mounting disc by hydraulic cylinder and drive component, so that the welding piece after fixing can be welded in a more simple way, and the welding point is kept in situ as far as possible during welding.

The invention discloses a method for reinforcing an H-shaped steel beam bolt welding splicing joint under the limitation of a floor slab, and the method comprises the following steps: detecting the effective depth of a joint defect welding seam, and detecting the effective depth of the joint defect welding seam, and the effective depth he of the welding seam is defined as the distance from the shallowest position of the internal defect of the welding seam to the upper surface of a base material. According to the method for reinforcing the H-shaped steel beam bolt-welding splicing joint under the limitation of the floor slab, reinforcement can be conducted without dismantling the covering object on the upper portion, the method is suitable for reinforcing the H-shaped steel beam bolt-welding splicing joint with the floor slab on the beam and the limited operation space, the residual bearing capacity of the defect welding seam is utilized, the thickness of the reinforcing plate can be reduced, and the construction difficulty is reduced.

The utility model relates to the technical field of cargo booms, in particular to a cargo boom barrel and a crane, and the cargo boom barrel comprises a first half barrel, a second half barrel and a plug-in structure. Specifically, the first half cylinder body and the second half cylinder body are each of a thin-wall structure, the cross section of the first half cylinder body and the cross section of the second half cylinder body are each of an arch-shaped structure, notches are formed in the first half cylinder body and the second half cylinder body, and the notches of the first half cylinder body and the notches of the second half cylinder body are oppositely arranged and jointly spliced into the cargo boom cylinder body. The opposite insertion structure is arranged at the splicing position of the first half barrel and the second half barrel and suitable for enabling the notch of the first half barrel and the notch of the second half barrel to be oppositely inserted so as to adjust the relative position of the first half barrel and the second half barrel. According to the cargo boom barrel and the crane, the forming size of the cargo boom barrel can be guaranteed through fine adjustment of the size, so that the size of the manufactured cargo boom barrel is kept consistent.

The utility model discloses a container short bottom beam machining structure which comprises a main plate, an upper folding line and a lower folding line are arranged on the main plate, a protruding welding face is arranged on the front end face of the main plate, an arc-shaped groove is formed between the welding face and the upper folding line, the top of the welding face is lifted to form a table top, and the main plate is bent along the upper folding line and the lower folding line to form a short bottom beam with a C-shaped section. And the short bottom beam is assembled and welded with the gooseneck groove through the welding surface to form a welding gap. The arc-shaped notch is formed between the welding face and the bending edge, the welding face is lifted, the distance between the welding face and the bending line is increased, it is guaranteed that deformation of the welding face cannot be caused in the bending forming process, meanwhile, the welding gap generated when the short bottom beam and the gooseneck groove are assembled after forming is greatly reduced, the welding difficulty is lowered, welding materials are reduced, and the welding time consumption is shortened; the forming effect is improved.

The embodiment of the utility model provides a busbar, a battery unit, a battery pack and a new energy automobile, and relates to the technical field of power batteries. The busbar comprises an aluminum sheet and a copper sheet, the copper sheet is arranged on the aluminum sheet, and a welding avoiding hole is formed in the copper sheet, so that a part of the aluminum sheet is exposed, and the part of the aluminum sheet is welded with a pole of the battery cell through the welding avoiding hole. According to the busbar, the thickness and the welding difficulty can be reduced, welding is facilitated, and the production and manufacturing cost can also be reduced.

The application relates to a heat dissipation device, a power assembly and an electrical equipment. The heat dissipation device comprises a heat dissipation body and an end plate assembly. The heat dissipation body defines a heat dissipation groove extending along a first direction, the heat dissipation groove being used for accommodating a heating element. The heat dissipation body has a heat dissipation channel, the heat dissipation channel being arranged on the peripheral side of the heat dissipation groove, and a cooling medium flows through the heat dissipation channel. The end plate assembly is arranged at the end of the heat dissipation groove along the first direction. At least one end plate assembly comprises an inner end plate and an outer end plate. The inner end plate and the outer end plate are arranged on the heat dissipation body in a stacked manner along the first direction. An accommodation space is defined between the inner end plate and the outer end plate and is communicated with the heat dissipation channel. The application is beneficial to improving the convenience of welding, reducing the difficulty of welding, facilitating the welding of firm welding points, reducing the risk of liquid leakage, and improving the cooling performance of the heat dissipation device.