741results about "Conductors" patented technology

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.

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.

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.

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.

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).

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.

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.

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.

An ultrasonic tab welder, useful for welding metal ribbon to metal sheet, has an ultrasonic stack having a horn configured to include a pair of ends between which are one or more upstanding welding stud surfaces and held by a bracket assembly. The bracket assembly includes a horn holder terminating at either end with U-shaped legs holding either end of the horn and an upper U-shaped legs having a generally horizontal piece carrying a strain gauge. A T-shaped assembly mated with the horn holder U-shaped legs that are carried by a U-shaped holder by a pair of downward holder legs. A pair of bearing assemblies are captured between the downward holder legs, the upper holder U-shaped legs, and the horn holder up U-shaped legs. The horn upstanding welding stud surfaces conformingly mate with the metal ribbon as it is welded to the metal sheet.

A method for welding a multi-layer aluminum foil of a current collector of a battery onto a corresponding structure includes performing a laser welding operation. The laser welding operation includes a spot welding operation of welding the multi-layer aluminum foil and the corresponding structure to each other using laser pulses. The corresponding structure is located under the multi-layer aluminum foil in a stacking direction of the multi-layer aluminum foil.

A laser notching system according to an embodiment of the present disclosure includes a transport unit configured to transport an electrode including a coated portion with active material coating and an uncoated portion without active material coating; a support unit including a first support unit configured to support the coated portion and a second support unit configured to support the uncoated portion; a laser unit configured to emit a laser to the uncoated portion supported by the second support unit above the second support unit to notch the uncoated portion; and a suction unit configured to suck impurities produced during the laser notching of the uncoated portion passing the second support unit.

The invention provides battery welding equipment and a battery welding method. The battery welding equipment comprises a conveying line, a battery cell feeding device, a connecting piece feeding device and a welding device. The conveying line comprises a plurality of carriers arranged in the conveying direction of the conveying line. The battery cell feeding device comprises at least two battery cell feeding mechanisms, the at least two battery cell feeding mechanisms are used for feeding at least two battery cell sets into at least two target carriers of the conveying line, and each battery cell set comprises at least two battery cells. The connecting piece feeding device is used for feeding the connecting pieces into the at least two target carriers. And the welding device is arranged beside the conveying line. The conveying line is movably arranged so that the at least two target carriers can be sequentially conveyed to the welding device to be welded. The welding device is used for welding the connecting piece and the at least two battery cells in the target carrier. According to the battery welding equipment, the welding efficiency is improved.

Provided in the present application are a battery welding apparatus and a battery welding method. The battery welding apparatus comprises a conveying line, a battery cell feeding device, a connecting piece feeding device and a welding device. The conveying line comprises a plurality of carriers arranged in a conveying direction thereof. The battery cell feeding device comprises at least two battery cell feeding mechanisms, the at least two battery cell feeding mechanisms being respectively used for feeding at least two battery cell groups into at least two target carriers of the conveying line, and each battery cell group comprising at least two battery cells. The connecting piece feeding device is used for feeding connecting pieces into the at least two target carriers. The welding device is arranged beside the conveying line. The conveying line is movably arranged to successively convey the at least two target carriers to the welding device for welding. The welding device is used for welding the connecting piece and the at least two battery cells in each target carrier. The battery welding apparatus of the present application improves the welding efficiency.

The present invention relates to a welding apparatus including an electrode assembly configured such that a plurality of positive electrodes and a plurality of negative electrodes are stacked in the state in which separators are interposed therebetween, guides configured to reduce tensile force of positive electrode tabs and negative electrode tabs protruding from the electrode assembly, an anvil configured to allow the electrode tabs to be disposed thereon, and a horn configured to apply ultrasonic waves to the electrode tabs disposed on the anvil, a welding method using the same, and an electrode assembly manufactured by the welding method.

The utility model discloses a battery monomer (20), a battery (1100) and a power utilization device, the battery monomer (20) comprises a shell (100) and an end cover (200), and the shell (100) is provided with an opening; the end cover (200) is welded at the opening and forms a welding structure (300), the welding structure (300) comprises a plurality of first welding seams (310), the first welding seams (310) and the edge part (210) of the end cover (200) are correspondingly arranged, and the plurality of first welding seams (310) are connected to form a closed annular structure so as to be annularly arranged outside the end cover (200); every two adjacent first welding seams (310) are connected in a laminated mode at the corresponding corner (220) of the end cover (200). According to the battery monomer (20), the strength of the welding structure (300) at the corner (220) of the end cover (200) is good, the strength of the welding structure (300) between the shell (100) and the end cover (200) is good, the welding quality is high, and the structural reliability of the battery monomer (20) is good.

The present invention relates to a head structure for ultrasonic welding. According to one aspect of the present invention, the head structure for ultrasonic welding may comprise: a head body including a base surface; and a pad-type welding body and a general-type welding body provided on the base surface to weld a predetermined object, wherein at least a portion of the pad-type welding body has a cross-sectional area different from that of the general-type welding body on the basis of a plane parallel to the base surface.

A sonotrode for ultrasonically welding a conductive pin to a workpiece is provided. The sonotrode includes a body portion configured to be coupled to an ultrasonic converter. The body portion terminates at a tip portion, the tip portion defining a mating feature configured to mate with a corresponding mating feature of a base portion of the conductive pin. The conductive pin is oriented in a predetermined configuration by mating of the mating feature with the corresponding mating feature of the base portion.

In joining two insulated wires 106 together, e.g. in electric motor vehicle stator coils; the ends of the insulated wires can initially be stripped to form exposed ends 508, 512. Each exposed end of the wires can be bent (near the interface of the exposed ends and insulated sections), e.g. forming an angle 504, 506 of between 120° and 150° with the insulated sections. The exposed ends 508, 512 can then be clamped together, with the insulated sections 510, 514 extending away from each other; before the exposed ends 508, 512 are laser welded together. Spacing apart / separating the insulated sections 510, 514 from each other, via the bending, can reduce insulation damage from laser welding heat. The insulated wires 106 may be I-pins or hairpins in a stator. The clamp may be of copper, with high thermal conductivity, to help draw away heat; to further protect wire insulation from damage.

The invention relates to a method for detecting faulty weld seams (12) of respective battery cells (14) of an electrical energy storage device. During a laser welding process for welding contact elements (16) to anode-side and / or cathode-side regions (18) of respective battery cells (14) to form respective weld seams (12), light parameters of a laser beam (20) generated by the laser welding process are detected, and a fault assessment is performed to detect potential faults in the respective weld seams (12) as a function of the light parameters. Furthermore, the invention relates to a welding device (10).

An ultrasonic welding device for a secondary battery is provided. The ultrasonic welding device is configured to weld an overlapping surface of an electrode tab and an electrode lead in an electrode assembly. The ultrasonic welding device includes an anvil on which the overlapping surface of the electrode tab and the electrode lead are disposed. A horn is configured to apply ultrasonic waves to the overlapping surface of the electrode tab and the electrode lead while pressing the overlapping surface. The overlapping surface is disposed on the anvil. An electrode tab measuring part is configured to measure a thickness of the electrode tab disposed on the overlapping surface. A pressure adjusting device is configured to adjust a pressure applied to the overlapping surface by the anvil and the horn according to the thickness value of the electrode tab. The thickness value is measured by the electrode tab measuring part.

The present disclosure relates to a lithium metal anode electrode that suppresses the growth of lithium dendrites which may deteriorate the electrochemical performance of a battery and cause catastrophic damage to a battery structure, and in particular, a method of manufacturing an anode electrode having a three-dimensional highly porous structure or a metal-or-carbon-based three-dimensional network structure, including irradiation of photoelectromagnetic energy.

The utility model discloses a PIN needle welding jig which comprises a jig frame, a plurality of positioning parts, a plurality of clamping parts, a plurality of clamping parts, a plurality of clamping parts, a plurality of clamping parts, a plurality of clamping parts and a plurality of clamping parts, and is characterized in that the positioning parts are used for positioning the jig frame to a to-be-welded part; the PIN needle inserting plate is connected to the first side of the jig frame, and a plurality of first PIN needle inserting holes are formed in the PIN needle inserting plate; the PIN needle limiting assembly is movably arranged between the jig frame and the PIN needle inserting plate, and the PIN needle limiting assembly is configured to be capable of being switched between a first position and a second position; when the PIN needle limiting assembly is located at the first position, the PIN needle limiting assembly abuts against the PIN needle inserted into the first PIN needle inserting hole, and the PIN needle is limited. When the PIN limiting assembly is located at the second position, the PIN limiting assembly is separated from the PIN inserted into the first PIN insertion hole, and the PIN is not limited any more. According to the PIN welding jig, the welding effect of the PIN can be remarkably improved.

An electrode production apparatus and a battery cell containing an electrode produced using the same, a battery pack containing the battery cell, and an automobile are disclosed. An electrode production apparatus according to one embodiment of the present invention includes a transfer member for transporting an electrode foil coated with an electrode active material, a laser member for irradiating the electrode foil with a laser, a jig member positioned to contact the electrode foil and support the electrode foil, and a foreign matter blocking member for blocking foreign matter generated when the laser is irradiated from flowing into a predetermined portion of the electrode foil.

An electrode tab welding device according to an embodiment of the present invention can weld a plurality of electrode tabs of an electrode assembly. The electrode tab welding device may include a pair of tab guides for collecting the plurality of electrode tabs, a pair of alignment rollers for applying pressure to the plurality of electrode tabs collected by the pair of tab guides and rotating in a direction in which the outermost electrode tab is pressed toward the electrode assembly, and a welding section for welding the plurality of electrode tabs aligned by the pair of alignment rollers.

An ultrasonic joining horn disclosed herein can generate ultrasonic vibration in a predetermined vibration direction and includes a base portion, a stand portion that rises from an upper surface of the base portion, and a pressure contact portion formed of a plurality of protrusions that protrude from an upper surface of the stand portion. Each of the protrusions is formed into a pyramid shape or a truncated pyramid shape, the protrusions are arrayed, and when viewed from top, at least a portion of a peripheral edge of a portion in which the protrusions are arrayed has a zigzag shape. The zigzag portion is formed along at least one of the vibration direction and a perpendicular direction to the vibration direction. The upper surface of the base portion has an exposed surface on which the stand portion is not formed.

The invention relates to a method for processing and joining bipolar plates (10) which are provided with sealing seams (56) for sealing between an active area (14) and media ports (18, 20, 22, 24, 26). At least the following process steps are carried out: In process step a), a warped bipolar plate (10, 54) is provided in a processing and joining station (28); in process step b), processing tools (34, 38) and joining tools (31) are positioned against the warped bipolar plate (10, 54) such that the joining tools (31) exert a holding and joining force (64) on the warped bipolar plate (10, 54). According to process step c), the machining tools (34, 38) contact the distorted bipolar plate (10, 54) and produce a plastic deformation (68) of the distorted bipolar plate (10, 54) by means of a straightening force (62).Subsequently, in process step d), a material-bonded electrical contact (82) is created on one side of the previously straightened bipolar plate (10, 84). Following process step e), the processing and joining station (28) is opened (78, 80) and the joined and straightened bipolar plate (10, 84) is removed.