953results about "Conductors" patented technology

A conductive pin for ultrasonic welding is provided. The conductive pin includes a body portion. The conductive pin also includes a pin head at one end of the body portion. The pin head defines a bonding surface configured to be ultrasonically welded to a workpiece. The bonding surface includes at least one of (i) a nonplanar surface and (ii) an aperture defined in a central region of the bonding surface.

The invention provides a pole column welding device and a battery assembling system, the pole column welding device comprises a battery cell fixing assembly, a first tab pressing plate unit and a welding assembly, the battery cell fixing assembly is used for supporting and fixing a battery cell which is horizontally arranged; the first tab pressing plate unit comprises a first driving assembly and a first tab pressing plate, the first tab pressing plate is mounted on the first driving assembly, and the first driving assembly is used for driving the first tab pressing plate to move, so that the first tab pressing plate presses a tab part of a battery cell on a pole of the battery cell; and the welding assembly is arranged to be used for welding the tab part and the pole which are pressed and covered together.

The invention discloses a lithium battery welding device, and relates to the technical field of lithium battery welding. A rectangular channel for allowing a plurality of lithium batteries to pass through is formed in the welding platform, an electric push rod A and an electric push rod B for pushing the lithium batteries to move are arranged at the two ends of the rectangular channel correspondingly, and meanwhile, a laser welding mechanism comprising a laser welding head and a positioning and pressing structure is arranged over the welding platform; automatic welding is realized during use; a feeding system composed of a feeding mechanism and a discharging groove connected with a vibration disc is arranged on the outer side of any side plate, feeding of electrode plates is controlled through the feeding system during welding, and the electrode plates to be welded are controlled through the feeding system to be tightly attached to the ends of the lithium batteries to be positioned during welding. And the position deviation of the electrode plate relative to the lithium battery in the welding process is avoided.

An inductor coil welding equipment includes a feeding system, a solid-state welding device, and a laser welding device. The laser welding device is installed behind the solid-state welding device, and the feeding system is used to sequentially send the inductor coil and the conductive plates to the solid-state welding device and the laser welding device. The solid-state welding device is used to pre-weld and fix the inductor coil to the conductive plates, forming a welded inductance conductive plate. Laser welding is used for performing enhancement welding at a welding joint between the inductor coil and the conductive plate.

The invention discloses an ultrasonic welding head, a tab, an electrode assembly, a single battery, a battery and a power utilization device.The ultrasonic welding head comprises a welding head body and first welding teeth, the welding head body is provided with a welding face, the first welding teeth are arranged on the welding face in a protruding mode, and each first welding tooth comprises a plurality of tooth parts; the multiple tooth parts are the first tooth part and the mth tooth part which are sequentially arranged in the protruding direction of the first welding tooth, the nth tooth part is arranged on the end face of the end, away from the welding face, of the (n-1) th tooth part, the end face of the end, away from the welding face, of the (n-1) th tooth part exceeds the nth tooth part, and n is larger than or equal to 2 and smaller than or equal to m. The ultrasonic welding head can reliably weld corresponding parts of the battery monomer, and the service reliability of the battery monomer is improved.

The invention relates to the technical field of welding, in particular to a welding method. According to the method provided by the invention, when the length of the wire harness is less than or equal to 500mm and the second end and the second terminal of the wire harness are welded, the first end of the wire harness is slightly influenced by vibration, and the tension value of the first terminal at the first end and the wire harness is reduced, so that after the welding parameters are adjusted, on one hand, the welding tension effect of the second end is reduced; on the other hand, vibration generated during welding is reduced, so that damage to the welding position of the first end is reduced, and tension values of the front end and the rear end can be balanced. In addition, the first end of the wire harness welded with the first terminal is clamped in the welding process, so that vibration generated when the second end of the wire harness is welded is counteracted by the clamping mechanism, propagation of the vibration to the first end is greatly reduced, and the influence on the first end is reduced.

The invention discloses a tab welding mechanism and a battery assembly system.The tab welding mechanism comprises a base, a supporting base, a tab pressing structure and a welding assembly, and the supporting base is arranged on the base and used for supporting and fixing a core body of a battery cell; the tab pressing structure is arranged on the base table and is configured to move towards the supporting seat so as to be used for pressing and collecting a plurality of tab pieces stacked on the battery cell; the welding assembly is arranged on the base table and is configured to move towards the supporting base so as to weld the multiple folded electrode lug pieces to form the electrode lug part. By means of the mode, the problem that the pole lug welding technology is high in difficulty can be solved, and the yield of batteries is increased.

The utility model provides a connecting piece, a battery and a punch. The connecting piece is used for connecting a pole and a tab of a battery, the connecting piece comprises a tab connecting part and a pole connecting part, the pole connecting part is connected to one side of the tab connecting part, the pole connecting part is provided with a welding area, the welding area is used for being in contact with welding laser, a rough surface is arranged on the pole connecting part in the welding area, a plurality of grooves are formed in the rough surface, and the grooves are communicated with the tab connecting part. And the shapes and / or sizes of the plurality of grooves are different. The utility model aims to solve the technical problems that the connection sheet and the pole of the existing lithium battery are not firmly welded and are easy to fall off.

An electric wire connection body includes a first electric wire, a second electric wire electrically connected to the first electric wire, a connection portion connecting the first electric wire and the second electric wire, and an insulation coating body covering a periphery of the connection portion. The connection portion is formed by butt welding of the first electric wire and the second electric wire.

To provide a welding method of electric wires which inhibits a laser beam from entering a space between butted surfaces of a first electric wire and a second electric wire and enables reduction of occurrence of spatter.SOLUTION: A welding method of electric wires includes: a first step of forming a first molten pool 40 by scanning a laser beam LB within an end edge surface of a first electric wire when the laser beam LB is radiated to end edge surfaces 34Uw, 35Uw of end edge parts of the first electric wire 34 and a second electric wire 35; a second step of forming a second molten pool 41 by scanning the laser beam within the end edge surface of the second electric wire after the first step; and a third step of forming a third molten pool 42 by connecting the first molten pool to the second molten pool by scanning the laser beam over the first molten pool and the second molten pool and after the second step.SELECTED DRAWING: Figure 12

Method for manufacturing an electrical storage device, comprising the following steps: Arranging a metal foil extending outwards from an electrode plate between a first metal element and a second metal element; and Causing an ultrasonic vibration to act on a plurality of points of action from the side of the first metal element in order to bond the metal foil to the first metal element and the second metal element, whereby the first metal element has a Vickers hardness of at least 40 Hv and not more than 75 Hv.

A wire bonding apparatus (100) comprises: a supply (108) of bond wire (102); a first motor (114) to advance the bond wire (102) from the supply (108); a wedge (110) to perform wire bonding by forming a first bond and a second bond, the second bond separated by a distance from the first bond; a wire guide (104) adjacent the wedge (110) for guiding the bond wire (102) toward the wedge (110); and a second motor (118) to advance the bond wire (102) into the wire guide (104), the second motor (118) configured to feed a length of the bond wire (102) after formation of the first bond and before formation of the second bond, the length greater than the distance between the first and second bonds.

A method for quality control of a welding joint between a pair of ends of conducting elements of an inductive winding of a stator, the method being performed by a computer and comprising the steps that consist in:acquiring a 3D reconstruction of the welding joint;extracting a white 2D grayscale blob area from the 3D reconstruction of the welding join;calculating a center of mass of the 2D grayscale blob area;extracting a plurality of profiles from the 3D reconstruction of the welding joint);searching for and identifying bare zones of the welding joint by analyzing one by one the profiles of the 3D reconstruction; andcalculating a bare area of the welding joint by summing the bare zones identified by the analysis of the profiles of the 3D reconstruction.

The invention discloses an attaching machine, which comprises a wire feeding mechanism used for feeding, feeding, pulling, cutting and connecting multiple groups of cables; the tray conveying mechanism is used for conveying trays; the circular conveying mechanism comprises a jig device which moves circularly, the tray conveying mechanism conveys trays to the jig device, and the cable conveying mechanism conveys a plurality of groups of cables to the trays on the jig device for cable arrangement; the rubberizing mechanism is used for adhering and bonding the plurality of groups of cables on the tray, so that the plurality of groups of cables are adhered and fixed on the tray; and the discharging mechanism is used for discharging the trays subjected to cable attaching and fixing. The cable feeding mechanism is used for feeding, feeding, pulling, cutting and connecting multiple sets of cables and conveying the multiple sets of cables to a tray on the circulating conveying mechanism, the tray feeding mechanism conveys the tray to the circulating conveying mechanism, cable arrangement is completed on the circulating conveying mechanism, adhesive paper is conveyed through the adhesive tape pasting mechanism, adhesive tape pasting is completed at the same time, and the cable feeding mechanism is used for feeding, feeding, pulling, cutting and connecting the multiple sets of cables. And finally, discharging is conducted through the discharging mechanism, full automation is achieved in the whole process, manual participation is not needed, and efficiency is improved.

A tab welding mechanism (10) and a battery assembly system (20). The tab welding mechanism (10) comprises a base platform (11), a support base (100), a tab pressing structure (200), and a welding assembly (300). The support base (100) is provided on the base platform (11) and is used for supporting and fixing a cell body (22a) of a battery cell (20a); the tab pressing structure (200) is provided on the base platform (11) and is configured to be capable of moving toward the support base (100), so as to press and gather a plurality of laminated tab pieces (211a) of the battery cell (20a); and the welding assembly (300) is provided on the base platform (11) and is configured to be capable of moving toward the support base (100), so as to weld the plurality of gathered tab pieces (211a) to form a tab portion (21a).

The utility model discloses a wire arranging device for full-automatic continuous welding, which belongs to the technical field of automation and comprises a bottom plate, a wire harness feeding transmission device for feeding wire harnesses is mounted on the upper end face of the bottom plate, and a continuous wire arranging component for arranging the wire harnesses is mounted on the upper end face of the bottom plate; the wire harness transferring and pushing assembly is used for transferring wire harnesses on the wire harness feeding transmission device to the continuous wire arranging assembly, and the wire harness transferring and pushing assembly is further used for pushing the wire harnesses arranged on the continuous wire arranging assembly to the tinning station and the welding station; the continuous wire arranging assembly comprises a plurality of wire arranging assemblies and a second conveying belt assembly, the wire arranging assemblies are installed on the outer wall of a conveying belt of the second conveying belt assembly at equal intervals, a main body support of the second conveying belt assembly is fixedly connected with the upper end face of the bottom plate, and a motor is fixedly installed on the main body support of the second conveying belt assembly; by means of the mode, continuous feeding and discharging of the wire harnesses are achieved.

A flux resin composition includes an epoxy resin, an imidazole compound, a thixo agent, and an activator. The epoxy resin includes at least one resin selected from the group consisting of naphthalene epoxy resins, biphenyl aralkyl epoxy resins, trisphenol methane epoxy resins, biphenyl epoxy resins, and dicyclopentadiene epoxy resins. The content of the at least one resin is equal to or greater than 20% by weight with respect to a total weight of the epoxy resin.

Disclosed are an apparatus configured for capturing debris generated during laser notching and a debris capture method using the same, and more particularly an apparatus for capturing debris generated when a laser beam is radiated to an electrode supplied to a cylindrical rotary drum so as to be brought into tight contact with an outer surface of the cylindrical rotary drum to notch an edge of the electrode, the apparatus including a debris capture unit having an open surface located so as to face a notched portion of the electrode, the debris capture unit being configured to capture debris, a debris transfer unit located under the debris capture unit, the debris transfer unit being configured to transfer the captured debris, a blowing unit located above the debris capture unit, the blowing unit being configured to blow air downward, and a scrap guide unit configured to guide scrap, generated by notching, downward and outside of the debris capture unit, and a debris capture method using the same.

One aspect of the invention relates to a laser joining device (10) for joining workpieces (14, 14.1, 14.2; 18) at a plurality of joining points (22.1, 22.2, 22.3, ..., 22.n) with a laser triangulation sensor (24) for determining the position of the joining points (22.1, 22.2, 22.3, ..., 22.n) and a joining laser beam source (26) which emits a joining laser beam (28) through an emission region (30) onto a joining point (22.1, 22.2, 22.3, ..., 22.n). To improve the laser joining device for industrial large-scale production, it is proposed that a measuring laser (46) of the laser triangulation sensor (24) is arranged on a first side of the joining laser beam source (26) and emits a measuring laser beam (48) onto the workpiece (14, 14.1, 14.2) in such a way that the measuring beam crosses an emission region (30) aligned for emitting the joining laser beam (28) onto a first joining point (22.1) in order to determine the position of a second joining point (22.2), which lies on a second side opposite the first side and laterally from the emission region (30). A photoreceiver (30) of the laser triangulation sensor (14) is arranged on the second side of the joining laser source (26) and detects light projected by the measuring laser beam (48) at the second joining point (22.2).

A pole welding device (500) and a battery assembly system (1). The pole welding device (500) comprises: a battery cell fixing assembly (510), a first tab pressing plate unit (520a), and a welding assembly (515), wherein the battery cell fixing assembly (510) is used for supporting and fixing a horizontally-arranged battery cell (100); the first tab pressing plate unit (520a) comprises a first driving assembly (521) and a first tab pressing plate (522), the first tab pressing plate (522) is mounted on the first driving assembly (521), and the first driving assembly (521) is used for driving the first tab pressing plate (522) to move, such that the first tab pressing plate (522) presses a tab portion (1030) of the battery cell (100) onto a pole (104) of the battery cell (100); the welding assembly (515) is configured to weld the tab portion (1030) and the pole (104) which are pressed together.

The invention relates to the technical field of batteries, and discloses a preparation method of a secondary battery, the secondary battery, an energy storage system and electric equipment.The preparation method of the secondary battery comprises the steps that a pole piece is provided, the pole piece is a positive pole piece or a negative pole piece, and the pole piece is a pole piece obtained after rolling operation; obtaining the actual porosity of the pole piece; judging whether the pole piece is qualified or not according to the actual porosity; under the condition that the pole piece is qualified, the pole piece is sequentially subjected to rolling, blanking, cell assembly, liquid injection and packaging to form the secondary battery; under the condition that the pole piece is unqualified, performing laser treatment on the pole piece to form a laser hole; and repeating the step of acquiring the actual porosity of the pole piece and the step of judging whether the pole piece is qualified or not according to the actual porosity until the pole piece is qualified, so that the uniformity of the porosity of the pole piece is improved, the wettability of the pole piece is enhanced, and the electrical property of the secondary battery is improved.

The invention discloses a laser cutting machining method for a conductive copper-aluminum plate, and belongs to the technical field of laser cutting. The method comprises the following steps that firstly, a to-be-machined plate is placed on a machine body; secondly, a supporting frame on the machine body is started, and the supporting frame drives a laser head to move to the position above the plate for cutting; thirdly, a cooling assembly is started, and the cooling assembly cools the laser head in work; the cooling assembly conveys the cooled gas into the heat preservation part, and the heat preservation part conducts heat preservation and slow cooling on the plates on the two sides of the cutting position; fourthly, the plate to be cut is preheated through a preheating part, and the cutting stability is improved; fifthly, impurities on the plate are blown off through an air blowing assembly arranged at the tail end of the preheating part; through a fan pump and a cooling pipe in the cooling assembly, the working heat of the laser head is effectively taken away, the service life of the laser head is prolonged, the cutting precision is guaranteed, meanwhile, heated gas is used for providing a heat source for follow-up heat preservation and slow cooling and plate preheating, and energy recycling is achieved.

The present invention relates to an electrode notching device and an electrode notching method using same, the electrode notching device comprising: a transferring jig facing one surface of an electrode to be notched so as to support the electrode; a laser part for emitting a laser toward the electrode in order to cut a predetermined area of the electrode; a pattern jig which is provided at one side of the transferring jig to support one edge of the electrode and includes a first surface having a first cut part formed therethrough to allow the laser emitted from the laser part to pass therethrough; and a suction part for collecting foreign substances generated during a cutting process by the laser, wherein the suction part includes a first suction part positioned below the pattern jig and a second suction part positioned on the side surface of the pattern jig.

Disclosed are an electrode notching apparatus including a transfer jig configured to face one surface of an electrode to be notched so as to support the electrode, a laser unit configured to radiate a laser toward the electrode in order to notch a predetermined area of the electrode, a pattern jig provided on one side of the transfer jig, the pattern jig being configured to support one edge of the electrode, the pattern jig including a first surface having a first incision portion defined therein and configured to allow the laser radiated by the laser unit to pass therethrough, and a suction unit configured to capture debris generated by the laser during a cutting process, wherein the suction unit includes a first suction portion located under the pattern jig and a second suction portion located at a side surface of the pattern jig, and an electrode notching method using the same.

The embodiment of the present application discloses a laser welding assembly, a laser welding defect detection method and a system. The laser welding assembly includes a welding kit and a temperature sensor, the welding kit is provided with a laser incident through hole that penetrates the corresponding first end and second end of the welding kit, the temperature sensor is arranged between the first end of the welding kit and the bus, one end of the temperature sensor is connected to the first end of the welding kit, the other end of the temperature sensor is abutted against the bus, and a surface of the bus away from the temperature sensor is abutted against a battery cell pole, and then in the process of laser welding between the bus and the battery cell pole, the firmness of the weld between the bus and the battery cell pole can be timely determined according to the temperature information detected by the temperature sensor, and corresponding processing is performed, which greatly improves the yield rate of laser welding between the bus and the battery cell pole and reduces the cost of laser welding between the bus and the battery cell pole.

A laser etching device, which etches an active material portion on an electrode sheet including the active material portion and a non-coating portion, according to an embodiment of the present invention includes a laser unit configured to irradiate laser onto the active material portion, a blowing unit configured to blow foreign substances generated by the etching of the active material portion toward the non-coating portion, and a suction unit disposed at an opposite side of the blowing unit with the laser unit therebetween to suction the foreign substances, wherein the laser unit, the blowing unit, and the suction unit are disposed in a direction traversing a moving direction of the electrode sheet.

A method for laser welding a metal foil stack to a metal substrate includes clamping the foil stack against a support surface of a substrate and irradiating the stack with a beam of laser pulses to weld the foils to the substrate. The beam is a composite beam including a center beam and a surrounding annular beam. An initial series of the laser pulses are incident on the stack at mutually distinct locations on a top surface of the stack, and a subsequent series of the laser pulses are incident on the stack at mutually distinct locations on a side of the stack. The resulting weld nuggets penetrate deeply into the stack, with an average penetration depth that exceeds an average pitch between the weld nuggets. The method is capable of welding more than 100 foils to the substrate. Welded assemblies have been demonstrated to withstand large shear forces.

An ultrasonic welding device includes an anvil provided so that an overlapping surface of an electrode tab and an electrode lead, which are provided in an electrode assembly, are configured to be disposed thereon; a horn configured to weld the overlapping surface disposed on the anvil; and an inspection member configured to inspect a horizontal level of an opposing member with respect to the overlapping surface, based on an overlapping surface horizontal value that is a horizontal value of the overlapping surface with respect to a predetermined reference surface and an opposing horizontal value that is a horizontal value of the opposing member, which is one of a welding part of the horn configured to face the overlapping surface and a disposing part of the anvil, on which the overlapping surface is configured to be disposed, with respect to the predetermined reference surface.

To improve the mass production of electrodes with regard to effort, quality, reliability and speed, the invention proposes a beam cutting method for cutting an electrode substrate (12), comprising the step of: a) cutting the electrode substrate (12) by guiding a cutting beam (14) along a cutting line (18) to completely or partially cut through the electrode substrate (12) by material ablation and thus produce a first and second cutting edge (52, 54), wherein the beam cutting method further comprises at least one of the steps of: b) cleaning the electrode substrate (12) by traversing a cutting edge area (56) extending along at least one of the cutting edges (52, 54) by means of a cleaning beam (26) which is designed and adjusted to remove material ejection (28) occurring during cutting by material ablation.and / or c) pre-cleaning the electrode substrate (12) prior to step a) by traversing a pre-cleaning area (58) extending along the cutting line (18) using the cleaning jet (26), which is designed and adjusted to remove material by material ablation in order to create a depression (60) along the cutting line (18) in which the cutting is carried out in step a).

The invention relates to a welding method for welding conductor ends (24, 24.1, 24.2) of a component (26) for an electrical machine grouped in a conductor end group (64), wherein at least a first conductor end (24, 24.1) of the conductor end group (64) and a second conductor end (24, 24.2) of the conductor end group (64) are to be joined together in a joining area (66) of the conductor end group (64), where the first conductor end (24.1) and the second conductor end (24.2) are located next to each other. To improve the quality of the weld, it is proposed that the welding process includes the following steps: a) directing a welding jet (68) towards the joining area (66) of the conductor end group (64) to create a weld pool (70), and b) moving the welding jet (68) out of the joining area (66) into an edge area (72) of the conductor end group (64) and terminating the emission of the welding jet (64) there.