Abstract: An electrical device having a terminal region for connection with a printed circuit board. The terminal region has a stranded wire and an enclosure piece surrounding the stranded wire. The enclosure piece is connected with the stranded wire, for example, by thermal diffusion bonding.

Abstract: An interposer for a test system includes coaxial cables, each of which is configured to transport a first portion of current originating from a current source, and printed circuit boards (PCBs), each of which is connected to a set of the coaxial cables in order to receive the first portion of the current from each coaxial cable in the set and to transport a second portion of the current. A spring leaf assembly includes spring leaves, each of which is connected to a PCB in order to transport a third portion of the current obtained from the PCB to a device interface board (DIB) that connects to devices under test (DUTs) to be tested by the test system. The coaxial cables on each PCB are arranged in parallel, the PCBs are arranged in parallel, and the spring leaves on each PCB are arranged in parallel.

Abstract: A floating electrical connector includes a housing with a tubular portion. An axis is defined in a center of the tubular portion. Several floating terminals are arranged around the axis and are partially connected. Each floating terminal has an inner terminal sheet on an inner side and a spring structure on an outer side. Each spring structure is connected to one of the inner terminal sheets. A portion of the inner terminal sheet is inserted into the tubular portion and arranged along an inner peripheral surface of the tubular portion. The portion of each inner terminal sheet located in the tubular portion has an electronic contact bulging inward. Several external pins are electrically connected around the floating terminals. When a conductive pin is inserted into the tubular portion, the spring structures could elastically deform, allowing the tubular portion to adapt to a horizontal deviation or a skew deviation of the conductive pin, providing a greater tolerance for alignment deviations.

Abstract: A power adapter assembly structure is disclosed and includes a circuit board, a socket and at least one elastic element. The socket is disposed adjacent to the circuit board. The circuit board and the socket are configured to collaboratively form at least one abutting surface and at least one fixing surface. The elastic element is connected between the circuit board and the socket, and includes a main body, a fixed portion and a hanging arm. The fixed portion and the hanging arm are disposed at two opposite ends of the main body, the fixed portion spatially corresponds to the fixing surface, and the hanging arm constantly abuts the abutting surface. A height is formed between the main body of the at least one elastic element and the at least one abutting surface, and less than a length of the hanging arm extended from the main body.

Abstract: A connector includes an insulation housing formed with a plurality of terminal slots, and a plurality of terminals inserted into the plurality of terminal slots. Each of the plurality of terminals has a pin protruding from a bottom of the insulation housing for insertion into a terminal hole in a circuit board. At least one latch is formed on the insulation housing for insertion and locking into a latch hole defined in the circuit board.

Abstract: A press-fit terminal for connecting a first component and a second component includes a first elastic portion for engaging with the first component, a second elastic portion for engaging with the second component, and an intermediate portion arranged between the first and second elastic portions in an axial direction of the terminal. The intermediate portion comprises a first plurality of radially extending arms for engaging with the first component and a second plurality of radially extending arms for engaging with the second component.

Abstract: An optical transceiver includes a housing, an optical communication module and a heat dissipation component. The optical communication module is disposed in the housing. The heat dissipation component is disposed in the housing and in thermal contact with the housing and the optical communication module, and the heat dissipation component is a stamped metal plate.

Abstract: A connector comprises a housing having at least a pair of legs extending from a bottom thereof, and at least one conductive terminal arranged in the housing. Each of the legs includes a body connected to the bottom of the housing and extending downward in a height direction of the housing. A conical guide is connected to a lower end of the body of each leg for guiding the leg into a hole formed in a circuit board. A positioning end is connected to a lower end of the conical guide of each leg and includes a positioning surface extending in the height direction for contacting an inner wall of the hole.

Abstract: Connectors that provide a large number of connections between a flexible circuit board and a printed circuit board, can easily and securely connect the flexible circuit board to the printed circuit board, are readily manufactured, and can be used in an assembly of an electronic device without excessive warpage.

Abstract: A solderable component comprises a body portion configured to be mounted on a board and an auxiliary portion extending from the body portion. The body portion has at least two solderable portions. The at least two solderable portions include two predetermined solderable portions. The auxiliary portion has one abutment portion and a coupling portion. The abutment portion and lower ends of the two predetermined solderable portions define a board-attachment plane which is an imaginary plane. The coupling portion couples the abutment portion and the body portion to each other. A boundary between the coupling portion and the body portion is apart from the abutment portion in a plane in parallel to the board-attachment plane. The coupling portion is separable from the body portion at the boundary between the coupling portion and the body portion.

Abstract: In one embodiment, a clip pin of a secondary printed circuit board removably coupled to a primary printed circuit board and a backplate in an information handling system includes: an open end configured to receive a guide pin of the backplate within a clip pin hole of the primary printed circuit board, the guide pin configured to removably couple to the clip pin via the open end; a bulbous portion disposed proximate to the open end, the guide pin causing the bulbous portion to apply an outward force on an inner wall of the clip pin hole; and a plurality of signal pins disposed within the bulbous portion, the outward force causing the plurality of signal pins to communicably couple to the inner wall to transmit a signal from the secondary printed circuit board to the primary printed circuit board.

Abstract: A low insertion force contact terminal which has a conductor mating portion, a securing portion and a substrate mating portion. The conductor mating portion is configured to terminate a conductor therein. The securing portion is configured to secure the terminal in a terminal receiving cavity of a housing. The substrate mating portion extends from the securing portion. The substrate mating portion has at least two sections which have curved portions thereon. The at least two sections move independently, which allows the curved portions to exert a normal force on walls of through holes of a substrate to which the contact terminal is mated which is sufficient to provide a stable electrical connection while allowing for a low insertion force.

Abstract: A press-fit terminal inserted into through hole of a circuit board along insertion direction includes a base portion extending in insertion direction, distal end portion, and two deformable portions. The distal end portion is on a front side to base portion in insertion direction and includes distal end portion side corner portions. The two deformable portions connect base portion and distal end portion and are contacted with an inner wall of through hole and elastically deformed. The two deformable portions include deformable portion side corner portions and deformable portion side corner portions include outer deformable portion side corner portions on outer side in direction crossing insertion direction. The two deformable portions include easy deformable portions, in portions having outer deformable portion side corner portions with curved surfaces whose radius of curvature RL is greater than a radius of curvature RS of curved surfaces of distal end portion side corner portions.

Abstract: A holding frame is provided, into which plug connector modules can be inserted, wherein the holder frame comprises or consists of two halves which can be connected to each other, a first half and a second half, wherein the halves each have a lateral surface and a cover surface, wherein the holding frame has at least one first blocking element, via which the halves can be fixed in a closed position, and wherein the at least one blocking element is movably held on the first half or on the second half. The blocking element is held on the first half or on the second half in a displaceable or rotatable or pivotable manner.

Abstract: A press-fit terminal includes a contact portion that is to be in contact with an inner wall of a through hole provided in a substrate; a leading end portion disposed on a leading end side relative to the contact portion in an insertion direction toward the through hole; a base portion disposed on an opposite side to the leading end portion with the contact portion being interposed between the leading end portion and the base portion; a penetration hole provided across the base portion, the contact portion, and the leading end portion; and a first inclination portion provided across the contact portion and the leading end portion and disposed continuous at an outer periphery of the penetration hole. The first inclination portion is inclined toward the penetration hole. The length, in a width direction, of at least part of the first inclination portion increases toward a leading end of the leading end portion, the width direction being orthogonal to the insertion direction and a penetration direction.

Abstract: A connection assembly, including: a first connector having a first end and a second end, and a first surface extending between the first end and the second end, the first connector including press fit pins extending away from the first surface, each of the press fit pins including: a rod portion; a connecting portion having a first shape; a second connector having a first end and a second end, including: a dielectric carrier having a first surface extending between the first end and the second end of the second connector, receptacles positioned within the first surface of the dielectric carrier, each of the receptacles including: a cylindrical region, a tapered region having a second shape that corresponds to the first shape of the connection portion, wherein, when the first connector is coupled to the second connector, the press fit pins are positioned within respective receptacles of the receptacles.

Abstract: A pin has a compliant section at a first end and a welding section at a second end opposite the first end. The compliant section is electrically connected with a via of a printed circuit board. The welding section has a welded connection with a passive component.

Abstract: Connection bridges (CBR) for dual-interface transponder chip modules (TCM) 200 may have an area which is substantially equal to or greater than an area of a contact pad (CP) of a contact pad array (CPA). A given connection bridge may be L-shaped and may comprise (i) a first portion disposed external to the contact pad array and extending parallel to the insertion direction, and (ii) a second portion extending from an end of the first portion perpendicular to the insertion direction to within the contact pad array (CPA) such as between C1 and C5. The connection bridge may extend around a corner of the contact pad array, may be large enough to accommodate wire bonding, and may be integral with a coupling frame (CF) extending around the contact pad array. The transponder chip modules may be integrated into a smart card (SC).

Abstract: Example implementations relate to an electrical socket for an electronic packaging assembly, which accepts a modular integrated circuit (IC) on one side and a circuit board on another side. In some examples, the electrical socket has a first body mountable on a first surface of the circuit board and a second body mountable on a second surface of the circuit board. The first body includes a plurality of conductors (wire-terminated contacts), where each first conductor includes a first end to protrude beyond the first surface of the circuit board and a second end to protrude beyond the second surface of the circuit board. The second body includes a plurality of receptacles, where each receptacle is coupled to the second end of a respective first conductor.

Abstract: An evaluation jig comprises a pair of female terminals connectable to a pair of male terminals of a charging connector, and an adjustment member that can adjust contact resistance of the female terminal and the male terminal. The female terminal is reducible in diameter. The adjustment member can apply an external force to the female terminal to reduce the female terminal in diameter.

Abstract: An engine starting device includes a board on which a pin header serving as an on-board component is mounted, a case member that has a tubular shape and that is disposed so as to surround the board, and an antenna coil that is disposed in the case member and that is electrically connected to an antenna terminal partly embedded in the pin header serving as an on-board component.

Abstract: To provide a method of manufacturing an electrical contactor including a volute spring structure extending in upward and downward directions formed integrally using a single material, having mechanical simplicity and excellent functionality, and functioning as an electric circuit achieving connection without loss.

Abstract: Provided is an electrical contactor that is formed from a small number of components that can improve the conductivity in the electrical contactor, while improving the slidability of an elastic member and the electrical contact stability with a contact target.

Abstract: An eye-of-needle terminal, comprising a base portion (1), a pin portion (3), and an elastic portion (2) disposed between the base portion and the pin portion. The elastic portion is provided with an eye-of-needle hole (4), and the extension direction of the eye-of-needle hole is the same as that of the elastic portion. The eye-of-needle hole comprises flared holes (42) located at both ends and a connecting hole (41) located between the two flared holes. The width of the end of each flared hole facing the connecting hole is greater than the width of the end distant from the connecting hole. Thereby not only ensuring that the eye-of-needle terminal is very easy to insert, but also ensuring that the eye-of-needle terminal forms a good connection with a conductive through hole after being inserted and does not easily come out of the conductive through hole.

Abstract: A component carrier includes a stack with at least one electrically conductive layer structure and at least one electrically insulating layer structure, a component embedded in the stack, and a via formed in the at least one electrically insulating layer structure along a horizontal path having a length being larger than a horizontal width.

Abstract: The invention relates to a method for producing a socket contact consisting of a sleeve and a contact cage which are formed from a first and a second metal strip. In said method, at least one step for forming the sleeve and a step for forming the contact cage are carried out in a parallel shaping process.

Abstract: An object to provide an electric device easy to manufacture, extensible and of high quality. The electric device comprises a plurality of module boards 51, the module boards 51 piled up on one another, each of the module boards 51 provided with an electrode 53 on its surface, the electrodes 53 on the piled-up module boards 51 generally positioned along a vertical straight line; and a connector 11 connecting the module boards 51, the connector 11 including a body portion 21, the body portion 21 electrically connecting the electrodes 53 positioned along the vertical straight line, and a holder 12 holding the body portion 21, the holder 12 including a board engagement portion and a holder connecting portion, the board engagement portion engaging with the module board 51 so that the connector 11 is mounted on the module board 51, and the holder connecting portion engaging with another holder connecting portion so that the connector 11 is coupled to another vertically adjacent connector 11.

Abstract: An electrical connector includes a body having an accommodating hole. The body has a protruding block and a platform protruding into the accommodating hole. The platform is located below the protruding block. A conductive terminal is accommodated in the accommodating hole. The conductive terminal has a base, which bends to form an accommodating space to accommodate the protruding block. The base has a through slot, and first and second branches located at two sides of the through slot. A lower section of the first branch is limited between the first protruding block and the platform. A method for manufacturing the electrical connector includes inserting the conductive terminal with the accommodating space opening upward into the accommodating hole by the strip, and rotating the conductive terminal with the protruding block as an axis, until the lower section of the first branch is located between the platform and the first protruding block.

Abstract: Provided is a battery wiring module that can hold busbars until they are connected to a secondary battery. A busbar is configured to connect battery terminals of a plurality of battery cells to each other, and has a recess portion that is recessed in a Z direction, which is a stack direction in which a housing is stacked on the battery cells. The battery wiring module includes a busbar holding portion configured to be inserted into the recess portions, and engage with and hold the busbar in the stack direction in which the housing is stacked on the battery cells.

Abstract: An insulated socket body and terminal assembly for an integrated chip includes upper and lower insulated socket body portions which are received together in mated relation to define a socket body having a plurality of lumens extending therethrough. The assembly further includes a like plurality of monolithic spring terminals received within the lumens, wherein the spring terminals include upper and lower contact ends connected by a central cantilever spring. The central cantilever springs are received within central recess portions of the lumens and the upper and lower contact ends are received in respective upper and lower guide portions of the lumens and project outwardly from respective upper and lower surfaces of the upper and lower insulated socket body portions. The central recess portions of the lumens are configured to retain the cantilever springs in a first uncompressed configuration and in a second compressed configuration.

Abstract: A connector includes at least one ground contact, at least one signal contact, and a member disposed near the at least one ground contact. The member is made of a magnetic conductivity material or a low electrical conductivity metal. An insulation body is provided for housing the at least one ground contact and the at least one signal contact. The member may be arranged at least one of on or within the insulation body for reducing resonance energy generated by the at least one signal contact.

Abstract: A connection terminal in which alloy particles made of an intermetallic compound containing tin and palladium are exposed on an outermost surface of a contact configured to electrically contact a mating conductor and distributed on a surface of a base material at least in the contact, wherein: a tin part made of pure tin or an alloy having a higher ratio of tin to palladium than the intermetallic compound is not exposed on a plane passing through a point where a height of the alloy particles from the surface of the base material is highest.

Abstract: A LED filament bulb apparatus includes a bulb shell, one or more LED strips, a core column, two pluggable sockets, a driver board and a cap. The LED strip is electrically connected to two power lead wires. The core column supports the LED strip. The two power lead wires have bottom ends. The two pluggable sockets respectively receives the two bottom ends. The driver board is used for mounting the two pluggable socket and a driver circuit. The two bottom ends of the two power lead wires are electrically connected to the driver circuit for receiving a driving current generated by the driver circuit from converting an external power source. The cap is fixed to the core column and the bulb shell.

Abstract: An electric motor includes an assembly for connection to a printed circuit having a conductive insert through which connection holes pass, and a coil assembly having electrical connections terminated by connection plugs. The motor further includes connection pieces comprising a rod, the outer cross-section of which matches the cross-section of the connection holes, the connection piece having, at the proximal end thereof, a shoulder with a cross-section greater than the cross-section of the connection holes, the opposite end having a slot extending up to the shoulder, and including an opening on the distal end with a width greater than or equal to the cross-section of the connection plugs and at least one narrowing with a width less than the cross-section of the connection plugs, in order to ensure the expansion of the collar of the connection piece engaged in the hole of the printed circuit insert.

Abstract: Encapsulated electronic modules having complex contact structures may be formed by encapsulating panels containing a substrate comprising pluralities of electronic modules delineated by cut lines and having conductive interconnects buried within terminal holes and other holes drilled in the panel within the boundaries of the cut lines. Slots may be cut in the panel along the cut lines. The interior of the holes, as well as surfaces within the slots and on the surfaces of the panel may be metallized, e.g. by a series of processes including plating. Terminals may be inserted into the terminal holes and connected to conductive features or plating within the holes. A conductive element may be provided on the substrate to connect to a terminal. Alternatively solder may be dispensed into the holes for surface mounting.

Abstract: Fabrication of a reliable circuit board assembly with press-fit connectors is facilitated by identifying a press-fit-connector-to-circuit board connection of a circuit board assembly for testing, with one or more press-fit connector pins of the connector being press-fit into one or more corresponding plated through-holes of the circuit board at a first surface of the circuit board. An electrically insulative liquid is applied at a second surface of the circuit board to the corresponding plated through-hole(s) with the press-fit pin(s), where the second surface and the first surface are opposite surfaces of the circuit board. Connection of the press-fit pin(s) to the corresponding plated through-hole(s) is tested to identify a connection failure, where the electrically insulative liquid facilitates identifying the connection failure. A fabrication adjustment to the circuit board assembly can be identified and implemented to address the identified connection failure.

Abstract: A LED filament bulb apparatus includes a bulb shell, one or more LED strips, a core column, two pluggable sockets, a driver board and a cap. The LED strip is electrically connected to two power lead wires. The core column supports the LED strip. The two power lead wires have bottom ends. The two pluggable sockets respectively receives the two bottom ends. The driver board is used for mounting the two pluggable socket and a driver circuit. The two bottom ends of the two power lead wires are electrically connected to the driver circuit for receiving a driving current generated by the driver circuit from converting an external power source. The cap is fixed to the core column and the bulb shell.

Abstract: A probe card device and a rectangular probe thereof are provided. The rectangular probe includes a branch segment, a first contacting segment and a second contacting segment. The branch segment is ring-shaped and has a perforation, and the branch segment includes two branch arms respectively located at two sides of the perforation. The first contacting segment is located at a side of the branch segment and is pierced through a first through hole of a first guide plate. The second contacting segment is located at the other side of the branch segment. A maximum width portion of the branch segment has a variable width greater than a hole size of the first through hole, and the two branch arms of the branch segment are compressible to enable the variable width to be less than or equal to the hole size of the first through hole.

Abstract: A method for mounting a printed circuit board for an automotive vehicle on a carrier structure including at least one rivet. The printed circuit board includes at least one mounting aperture that is capable of accommodating the rivet and which defines an electrical conduction zone and at least one mark having a control end up to which the mark extends over the electrical conduction zone. The method includes a step of positioning the printed circuit board on the carrier structure such that the rivet extends through the mounting aperture, a step of riveting the rivet such that its head is at least partly flattened on the electrical conduction zone and a step of determining the conformity of riveting when the head of the rivet covers the control end of the mark.

Abstract: A connecting element with a screw-in element and a contact element. The screw-in element is pin-shaped and extends along a longitudinal axis, has a thread on its first free end, a drive profile and a reception on its second free end, wherein the contact element is arranged in the reception with its first free end and has a connecting pin on its second free end that extends beyond the screw-in element in the direction of the longitudinal axis, wherein the contact element has a spring that is arranged between the screw-in element and the connecting pin.

Abstract: The housing possesses a bottom wall and a periphery wall that surrounds a periphery of the bottom wall and is composed of a pair of first side walls retaining contacts with the contacts aligned in an arrangement direction, and a pair of second side walls, one of which connects one ends of the pair of first side walls, another of which connects other ends of the pair of first side walls. The mounting members possess a first mounting section covering at least part of each region, in which no contacts are aligned, of the first side walls, and a second mounting section that is separated from the first mounting section and covers at least part of the second side walls.

Abstract: An electrical contact includes a main body and a compliant pin extending from the main body. The compliant pin includes a through-hole. The compliant pin is configured to be compressed. The electrical contact also includes a first leg and a second leg that each extend from the main body. The compliant pin is between the first leg and the second leg. The compliant pin, the first leg, and the second leg extend from the main body in a same direction. The electrical contact further includes a first blade and a second blade that each extend from the main body. A slot is formed between the first blade and the second blade, and a width of the slot is larger at a first position adjacent a distal end of the first and second blades than at a second position adjacent a proximal end of the first and second blades.

Abstract: An electrical contact for insertion into a hole of a substrate. The electrical contact includes a compliant portion having an opening extending between contact arms. At least one contact arm of the contact arms has a resilient engagement section which extends into the opening of the compliant portion and resilient contacting sections which extend from the engagement section in a direction away from the opening. Upon insertion of the compliant portion into the hole of the substrate, the resilient engagement section of the at least one contact arm engages an opposed contact arm of the contact arms, causing each of the resilient contacting sections to move independently of the resilient engagement section and other resilient contacting sections. Each of the resilient engagement section and the resilient contacting sections are deformed and generate independent retention forces which are combined to generate the total retention force of the compliant portion.

Abstract: An electronic device includes a first wiring substrate having a first main surface, first conductive contacts, each of which is provided upright on the first main surface, has a U-shape opening toward a side of the first wiring substrate, and comprises a first contact part extending toward the side of the first wiring substrate, a second wiring substrate having a second main surface, second conductive contacts, each of which is provided upright on the second main surface, has a U-shape opening toward a side of the second wiring substrate, and comprises a second contact part extending toward the side of the second wiring substrate and being in contact with the first contact part, and, third conductive contacts, each of which has a U-shape opening toward the conductive contacts and is configured to sandwich the first and second contact parts and to fix the first and second wiring substrates.

Abstract: An electrical contact includes a compliant portion having an opening extending between contact arms. A first contact arm of the contact arms has multiple resilient engagement sections extending into the opening of the compliant portion and resilient contacting sections extending from the engagement sections in a direction away from the opening. Upon insertion of the compliant portion into the hole of the substrate, the resilient engagement sections of the first contact arm engage an opposed second contact arm of the contact arms, causing each of the resilient contacting sections to move independently of the resilient engagement sections and independently of other resilient contacting sections. Each of the resilient engagement sections and the resilient contacting sections are deformed and generate independent retention forces which are combined to generate the total retention force of the compliant portion.

Abstract: Circuits, methods, and apparatus that may provide audio jacks capable of providing a sufficient retention force to avoid some inadvertent extractions of an audio plug. Examples may also provide audio jacks that may be readily assembled. Other examples may provide other types of connectors. These audio jacks or other connectors may provide contact structures having one or more contacts, each having a contact support to increase contact retention force. Different materials may be used to form the contacts and the contact supports. In this way, contacts may be formed using a highly conductive material, while the contact supports may be formed of a material having good spring characteristics. While such a contact may not be able to provide an adequate retention force on its own, the use of a contact support may sufficiently increase the retention force to prevent accidental extractions of an audio plug or other connector.

Abstract: A first connector includes a first plurality of eye-of-needle (EON) pins. Each EON pin of the first plurality includes two opposing spring arms. Each EON pin of the first plurality is configured to be received within a corresponding electrical via of a printed circuit board (PCB) such that the spring arms engage walls of the corresponding electrical via at a set of contact points. A second connector includes a second plurality of EON pins. Each EON pin of the second plurality includes two opposing spring arms. Each EON pin of the second plurality is configured to be received within a same corresponding electrical via of the PCB as a corresponding EON pin of the first plurality located at a same relative connector body location such that the spring arms engage the walls of the same corresponding electrical via at a different set of contact points.

Abstract: A contact device which is adapted to be mechanically mounted and electrically connected on a printed circuit board by a fastening portion and serves for receiving an external plug element. The contact device comprises a contact portion for inserting the external plug element for forming an electrical contact, an elastic support element for movably supporting the contact portion and for providing a possibility of movement in all spatial directions, wherein the support element includes a fastening part by which the contact device is fastened on the printed circuit board, a contact part for directly supporting the contact portion and a center part for connecting the fastening part and the contact part, the fastening part and the contact part bent relative to the center part, and of movement of the contact part and center part are limited by predetermined distances from adjacent external limiting means in the fastened state.

Abstract: An electrical connector connecting a male connector and a female connector in a freely engageable and detachable manner, in which: a male tab is provided at the male connector; a housing part where the male tab is inserted is provided at the female connector; a spring state contact piece and a beat piece to sandwich the male tab are provided at the housing part; and a protrusion protruding toward the male tab inserted into the housing part is provided at least one of the contact piece and the beat piece, wherein the protrusion includes a contact part which is in contact with the male tab inserted into the housing part and a sidewall part which is provided at a periphery of the contact part, and the contact part has so-called a star-shape in a plan view.

Abstract: Provided is an apparatus for connecting between an electrode terminal of a battery module and a terminal capable of electrically connecting the electrode terminal and the terminal to each other by being press-fitted onto an outer side of the electrode terminal protruding outwardly of the battery module. The apparatus for connecting between an electrode terminal of a battery module and a terminal includes a socket terminal inserted and closely adhered onto the outer side of the electrode terminal and a socket coupled and closely adhered onto an outer side of the socket terminal and coupled to the terminal, such that the electrode terminal and the terminal are electrically connected to each other by the socket terminal and the socket.