69results about "Conductors" patented technology

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.

A method of joining a first conductor of a power cable with an essentially cylindrical metal element, the method including: a) arranging an end section of the first conductor and a portion of the metal element in a metal fixture, b) penetrating the metal fixture with a rotating friction stir welding, FSW, tool, c) moving the rotating FSW tool, while penetrating the metal fixture, towards and through an interface between the end section of the first conductor and the metal element, joining the end section, the metal element, and the metal fixture, and d) removing excess metal fixture material from the joined end section and metal element to obtain an FSW joint between the first conductor and the metal element.

Method for producing a material-bonded connection between joining partners (10, 14), in particular bipolar plates (12, 16) which are made of or contain metallic material, comprising at least the following process steps: a) Arrange the joining partners (10, 14) parallel to each other such that a joining plane (18) is formed, b) Applying a first electrode (28) to the first joining partner (10) and a second electrode (30) to the second joining partner (14), c) Positioning the first electrode (28) and the second electrode (30) in a lateral direction (38) relative to each other such that an offset (36) of the electrodes (28, 30) is established relative to each other, d) Applying contact forces (40, 42) to the electrodes (28, 30) to create a region (48) with increased compressive stress in the joining plane (18) and e) Generating a narrowed, limited current path (50, 54) between the electrodes (28, 30) in the diagonal direction (52) through the joining plane (18).

The invention relates to a semi-finished product for manufacturing an electrical contact element, an electrical contact element and a method for manufacturing an electrical contact element. According to the invention a semi-finished product is provided in order to ensure a secure connection between several workpieces from which the contact element is to be manufactured, wherein the semi-finished product comprises a first workpiece of metal and a second workpiece of metal, wherein the first workpiece has a front side and a rear side arranged opposite the front side and the rear side is arranged closer to the second workpiece, wherein the semi-finished product comprises at least one window which extends at least through the first workpiece and a surface of the second workpiece is accessible from the first workpiece through the window and wherein the window has a base region which increases from the front side of the first workpiece towards the second workpiece.

A battery module includes a battery cell stack that is formed by stacking a plurality of battery cells along a first direction, an insulating cover that covers both end parts of the battery cell stack, a holding member that wraps both end parts of the battery cell stack adjacent to the insulating cover, and a first electrode lead and a second electrode lead that protrude from each of a first battery cell and a second battery cell adjacent to each other included in the battery cell stack, the first electrode lead and the second electrode lead are bent in different directions from each other, and the first electrode lead and the second electrode lead overlap with each other to form a welding part and an extra space between the welding part and the battery cell stack.

An electrode tab bonding equipment according to an embodiment of the present disclosure includes: a transfer member that transfers an electrode including an electrode current collector; a tab clamp jig that moves an electrode tab on one surface of the electrode current collector or pulls the electrode tab; a tensile force measuring device provided in the tab clamp jig; a bonding member that bonds the electrode tab on the electrode current collector; and at least one electrode clamp jig that fixes the electrode.

To suitably join a current collector to an electrode plate end part.SOLUTION: A secondary battery comprises a current collector 60 that is joined to an axial end 10e of an electrode body 10 subjected to arrangement of a plurality of electrode plate end parts 40 stacked in a thickness direction. When the current collector 60 is joined, a step of integrally coating each of the electrode plate end parts 40 with a resin in its joining position, and a step of solid phase-bonding a joining area 61 of the current collector 60 to an edge part 70 of each of the electrode plate end parts 40 integrated by a coating part 81 formed of the resin are executed.SELECTED DRAWING: Figure 10

To prevent a wire from breaking at a joint portion and at a boundary between the joint portion and a linear portion.SOLUTION: A coil component includes a core, a wire, and external electrodes 40. The core has a winding core portion and a pair of flange portions. A specific axis perpendicular to a central axis is defined to be a first axis X, one of the directions along the first axis X is defined as a first positive direction X1, and an opposite direction to the first positive direction X1 is defined as a first negative direction X2. The external electrodes 40 each cover an outer surface of the flange portion facing the first positive direction X1. The wire includes: a linear portion wound around the winding core portion; and a joint portion 51 located at each end of the wire and connected to each of the external electrodes. In a cross section perpendicular to the central axis and including the joint portion 51, an end of the joint portion 51 on the first negative direction X2 side is located on the first negative direction X2 side with respect to an end of the external electrode 40 on the first positive direction X1 side. Moreover, a dimension P1 in a direction along the first axis X from the end of the joint portion 51 on the first negative direction X2 side to the end thereof on the first positive direction X1 side is larger than a wire diameter of the linear portion.SELECTED DRAWING: Figure 3

This invention relates to the field of new energy vehicle processing technology, specifically to a welding device for new energy vehicle parts. The device includes a resistance welding machine body for welding wire harnesses and a top welding head and a bottom welding head mounted on the machine body. After the operator places one end of the wire harness onto a terminal connector, the device drives a positioning and pressing mechanism via a detection opening and closing mechanism. This further clamps and positions the terminal connector and one end of the wire harness. Simultaneously, the device presses down on one end of the wire harness to prevent it from tilting due to its own weight, ensuring sufficient contact between the wire harness and the terminal connector, thereby reducing contact resistance and ensuring stable welding between the top and bottom welding heads.

A welding method includes pressing multiple objects together by a jig and irradiating the objects with laser to form multiple welded spots. The welded spots may include multiple first welded spots formed in a first direction and multiple second welded spots formed in the first direction and misaligned with the first welded spots in a second direction which is perpendicular to the first direction. A gap between the center of each of the first welded spots and the center of each of the second welded spots in the second direction. Another gap between the first welded spots in the first direction. And a gap between the second welded spots in the first direction may be greater than or equal to the radius of the second welded spot and less than or equal to a value of about 1 mm plus a diameter of the second welded spot.

The present invention includes an electrode assembly support roller, and a laser irradiation device. The electrode assembly support roller includes two or more cylindrical roller segments, the two or more cylindrical roller segments are coupled to one shaft for fixation in a spaced-apart manner with a adjacent roller segment, and the laser irradiation device is located to be able to irradiate a separated space formed between the cylindrical roller segments with a laser beam.

A housing comprises a protection main body and protection covers, the protection main body and the protection covers define a protection cavity, and the protection covers can extend and retract. Multiple protection assemblies are arranged on the housing, each protection assembly is provided with a welding area communicated with the protection cavity, the welding area penetrates through the protection assembly, and the welding area is used for allowing a tip to pass through and perform welding. A driving assembly is arranged on the protection main body, the driving assembly is used for driving the protection assemblies and / or the protection main body to move so as to enable at least one protection assembly and a corresponding protection cover to move, and the direction of extension and retraction of each protection cover is arranged in the corresponding direction of movement of the protection assembly.

A method of manufacturing a power storage device includes: producing an electrode assembly having a first electrode tab group; and forming a joining portion at which first electrode tabs in the first electrode tab group are joined together by applying vibration to the first electrode tab group by a horn in a state in which the first electrode tab group is sandwiched between the horn and an anvil in a stacking direction of the first electrode tabs, wherein a line-shaped protuberance is provided in a surface of one of the horn and the anvil, the surface being to be in abutment with a first outer surface of the first electrode tab group, and in the forming the joining portion, the vibration is applied in a state in which the line-shaped protuberance is in abutment with the first outer surface of the first electrode tab group.

The invention relates to a method and an apparatus for laser-welding at least two conductor pieces (10, 16) as well as to an assembly of at least two integrally bonded conductor pieces (10, 16).

This invention provides an ultrasonic welding electrode for ultrasonically welding conductive pins to a workpiece. The ultrasonic welding electrode includes a body portion configured to be coupled to an ultrasonic transducer. The body portion terminates at a terminal portion defining a mating feature configured to mate with a corresponding mating feature of a base portion of the conductive pin. Through the mating of the mating feature with the corresponding mating feature of the base portion, the conductive pin is oriented in a predetermined configuration.

The invention relates to a laser drilling device (10) for processing a substrate (12) for an electrochemical cell and to a method for processing a substrate (12) for an electrochemical cell by means of a laser drilling device (10), wherein the laser device (10) comprises a laser unit (14) which is designed to generate a laser beam (16) for processing the substrate (12). The invention further relates to a substrate (12) for an electrochemical cell, the substrate having been machined by means of such a laser drilling device and / or using such a method. According to the invention, a first deflection (x1) of the laser beam (16) in a first deflection direction, in relation to a surface (22) of the substrate (12), is brought about by means of a first deflecting unit (20), and a second deflection (x2) of the laser beam (16) in a second deflection direction, in relation to the same surface (22) of the substrate (12), is brought about by means of a second deflecting unit (24), the second deflecting unit (24) being operated in such a way that in at least one time segment (Δt1), in particular a first time segment, the second deflection direction is opposite the first deflection direction, and in at least one time segment (Δt2), in particular a second time segment, the second deflection direction is oriented in the same direction as the first deflection direction.

The invention relates to the technical field of welding tools, in particular to a welding tool and method for the end of a stator, and the structure of the welding tool for the end of the stator comprises a positioning base which is installed at the bottom of a stator assembly; the clamping mechanism is installed at the top of the stator assembly, the clamping mechanism comprises an upper clamping disc and a lower clamping disc which can rotate relatively, the upper clamping disc is provided with a plurality of first clamping teeth, the lower clamping disc is provided with a plurality of second clamping teeth, and the wire can be clamped and fixed between the first clamping teeth and the second clamping teeth; the clamping mechanism is provided with a first positioning key groove and a second positioning key groove at intervals in the circumferential direction, the positioning key is installed in one of the first positioning key groove and the second positioning key groove, the iron core is provided with a stator key groove, and the positioning key is inserted into the stator key groove. According to the welding tool and the welding method for the stator end part, the problem of how to clamp and weld an end part wire of an ultra-short linear segment stator can be solved.

The present invention relates to a method for pretreating an elongated conductor (10) for a welding process, wherein the elongated conductor (10) has a conductive core (12) and a cladding (14), and the core (12) comprises aluminum, the method comprising the steps of: removing the cladding (14) within a segment (20) of the elongated conductor (10); and heating the conductive core (12) by irradiating the segment (20) with a laser beam (18) to form an oxide layer (38) within the segment (20).

Systems, methods, and apparatuses to assist a laser welding operation are provided. The system can include a base plate. The base plate can be coupled with a first end of a shaft. The system can include an end plate. The end plate can be coupled with a second end of the shaft. The system can include a spring. The spring can be coupled with the shaft. The spring can compress to a compressed position. The spring can compress to the compressed position responsive to movement of the block. The block can move toward the base plate with the end plate in a fixed position. The system can include a contactor. The contactor can be coupled with the block. The contactor can apply a force to a conductive element for laser welding with the spring in the compressed position.

Disclosed are a laser notching apparatus for electrode sheets and a method for notching electrode sheet using the same, and more particularly a laser notching apparatus for electrode sheets, the laser notching apparatus including an unwinder having an electrode sheet wound therearound, a notching drum spaced apart from the unwinder by a predetermined distance, the notching drum being configured to support the electrode sheet that is supplied, a laser radiator configured to notch the electrode sheet, and a rewinder spaced apart from the notching drum by a predetermined distance, the rewinder being configured to wind the notched electrode sheet, wherein the electrode sheet wound around the unwinder includes a first surface constituting an inner surface and a second surface constituting an outer surface, and the notching drum is disposed so as to face the first surface of the electrode sheet, and a method for notching electrode sheet using the same.

An ultrasonic welding head comprises a welding head main body and first welding teeth; the welding head main body is provided with a welding surface, the first welding teeth protruding from the welding surface; the first welding teeth comprises a plurality of tooth parts, the plurality of tooth parts respectively being a first tooth part to an m-th tooth part which are successively arranged in the protruding direction of the first welding teeth; the n-th tooth part is arranged on the end surface of the end of the (n−1)th tooth part away from the welding surface, the end surface of the end of the (n−1)th tooth part away from the welding surface exceeding the n-th tooth part, and 2≤n≤m. An ultrasonic welding device, an electrode assembly, a battery cell, a battery, and an electrical device.

The present application relates to a power storage device and a manufacturing method thereof, the manufacturing method of the power storage device including: a step of producing an electrode body (200) having a first electrode tab group (220); and a step of forming a joining portion in which first electrode tabs (230) in the first electrode tab group (220) are joined to each other by applying vibration to the first electrode tab group (220) in a stacking direction of the first electrode tabs (230) with the first electrode tab group (220) being sandwiched by a horn (10) and an anvil (20) using the horn (10), in one of the horn (10) and the anvil (20), a linear protrusion (11) is provided on a surface that comes into contact with a first outer surface of the first electrode tab group (220), and in the step of forming the joining portion, the vibration is applied in a state in which the linear protrusion (11) comes into contact with the first outer surface of the first electrode tab group (220).

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.

Embodiments provide a secondary battery manufacturing equipment. The secondary battery manufacturing equipment includes an unwinder configured to unwind an electrode sheet from a first electrode roll, a rewinder configured to wind the electrode sheet into a second electrode roll, a first die coater configured to form a first coating layer on the electrode sheet, a second die coater configured to form a second coating layer on the electrode sheet, and laser beam radiators configured to partially etch the second coating layer.