Abstract: The upper surface panel 15 and the lower surface 14 of the electric wire connection portion of the crimping terminal 10 are formed in such a cross-sectional shape that when placed and joined together an internal space is formed therein to house the end portion of an electric wire W and also such that when the interior is compressed and sealed by receiving crimping force from an vertical direction the end portion of the electrical connection is crimped thereby. Further, an electric wire insertion aperture 17 is provided in the junction 16 between the lower surface panel 14 and the upper surface panel 15 to allow the end portion of the electric wire W to be inserted therebetween.

Abstract: An improved electronic audio receptacle connector employs contacts that have multiple points of contact with a mating audio plug. The contacts each have multiple segments, each segment having a plurality of transverse fingers that interface with a conductive portion of the audio plug. The multiple points of contact improve the reliability of the receptacle connector. The housing of the receptacle connector may be made of two portions mated along an interface. The two portions may have features along the interface to impede moisture ingression and to interlock them together.

Abstract: The present disclosure relates to a socket for an electric bulb, formed by a tubular body having two longitudinal cavities for receiving contacts crimped onto cables, said tubular body including lateral clip-fastening elements having lugs for locking into the base of a motor vehicle light or headlight. The disclosure provides that the locking elements are provided with internal shoulders having dimensions and positions configured such as: to be engaged behind a transverse surface of the contact when said contact is correctly mounted and to allow insertion into the base of the light or headlight when the clip-fastening elements are biased; and to prevent the movement of the elements which would allow insertion of the socket when the contact has not been correctly engaged.

Abstract: A solder-less wire connector sleeve of conductive material has a first bore portion extending from a first end and configured for rotatable connection to an end portion of an electrical rod or pin of a subsea connector or the like, and a second bore portion extending from the second end and configured for receiving a wire. The sleeve has a crimp portion overlying the wire receiving end portion. An annular, resilient, snap engaging member is mounted in the first bore portion to extend radially inwardly into the bore, and is configured for resilient, snap engagement in an annular groove in the conductor rod adjacent the tip of the rod to retain the rod in the sleeve while permitting relative rotation between the rod and sleeve.

Abstract: An electrical contact element has a primary axis. The primary axis pierces a polygonal base surface of the contact element. A contact bushing is arranged around the primary axis. An orifice of the contact bushing opens into a top surface which is arranged on a side of the contact element lying opposite to the base surface. The top surface bulges spherically over the base surface and transitions continually into a lateral face connecting the base surface and top surface.

Abstract: A radio frequency (RF) socket contact is provided for mating with an RF mating pin. The RF socket contact includes a body having a base that extends a length along a central longitudinal axis. The body has an odd number of cantilevered deflectable beams that extend lengths outward from the base along the central longitudinal axis. The beams define a socket therebetween that is configured to receive the RF mating pin therein. The beams include a mating zone within the socket where the beams mate with the RF mating pin. The body of the socket contact is configured to conduct radio waves.

Abstract: An electrical connection terminal for securely retaining a connection object without degrading connection reliability, and a connector using the electrical connection terminal. A first contacting portion adapted to cut into a lead wire of a cable to restrict displacement thereof in a counter-insertion direction is provided in the leading-end corner of a first contact piece of a terminal, and a second contacting portion with which the lead wire slidably makes contact is provided on the leading end of a second contact piece of the terminal. Disconnection of the lead wire is prevented by means of the first contacting portion and securing a sufficient area of connect with the lead wire by the second contacting portion. The second contacting portion is formed by chamfering the leading-end corner of the second contact piece. Accordingly, the leading-end side of the second contact piece need not be bent to form a curved-surface contacting portion.

Abstract: A coaxial cable adaptor comprises a body, a conductor disposed inside the body and insulation linings disposed between the body and the conducting tubular conductor. A plurality conducting plates separated by gaps is disposed at two ends of the tubular conductor respectively, and an accommodating groove is formed between the conducting plates at each of the two ends for inserting coaxial cable cores. Middle section areas of the conducting plates are depressed toward the accommodating groove, and an arch flange is protrudingly formed on the middle section area of each of the conducting plates facing towards the accommodating groove. Thereby, the coaxial cable cores inserted in the accommodating groove can be clamped tightly by the tubular conductor through the elasticity of the arch flanges of the conducting plates in order to allow stable transmittance of high frequency signals.

Abstract: A connector for a Low Profile (LP) fuse which has an increased fixing force, so as to prevent a secured LP fuse from being separated by external forces, such as vibration of a vehicle, etc. The connector for a Low Profile (LP) fuse includes a body, a rear member, and a pair of supporting arms. The body is adapted for insertion into a body receiving passageway of a fuse box. The body includes a lower end electrically connected to an electric wire. The rear member extends from the body into the body receiving passageway, while the pair of supporting members are bent from opposite sides of the rear member. The pair of supporting members extend parallel to each other.

Abstract: The present invention provides a terminal fitting that ensures constant contact load of an inserter that is inserted into an electrical contact by making uniform the amounts of displacement among a plurality of resilient pieces constituting the electrical contact. A terminal fitting includes a cylindrical electrical contact portion obtained by making the both ends of the conductive metal plate close to each other and joined to each other. The electrical contact portion includes a plurality of slits extending in a cylinder-length direction N and provided at intervals in the circumferential direction of the electrical contact portion. The slits provided farthest away from the joining portion at the both ends of the metal plate have a size in the cylinder-length direction N larger than those of the other slits.

Abstract: Embodiments include an electrical contact including a tubular body formed of a flexible and insulative material. The tubular body includes an inner surface. The electrical contact also includes at least one wire partially embedded into the tubular body such that at least a portion of the at least one wire is exposed within the inner surface of the tubular body. At least a portion of the inner surface of the tubular body and at least the exposed portion of the at least one wire forms a channel.

Abstract: The invention relates to a plug connector having a main part, comprising a contact blade basket or skirt having at least one first and one second contact zone. Said contact zones are disposed one after the other in the longitudinal direction of the plug connector and have a plurality of contact blades. Adjacent contact blades are separated from each other by a gap. An intermediate wall is provided between the contact zones disposed one after the other, forming a conductive contact both between the contact blades of the first contact zone and the contact blades of the second contact and between the individual contact blades of the first contact zone and the individual contact blades of the second contact zone.

Abstract: A system and method is provided for securing a spring body against a socket body, thereby reducing movement of the spring body during periods of vibration. Preferred embodiments of the present invention operate in accordance with a socket body that includes at least a proximal end, a spring body that includes at least a distal end, and a sleeve. In one embodiment of the present invention, the distal end of the spring body is configured to be placed over the proximal end of the socket body, and the sleeve is configured to be placed over the distal end of the spring body. The sleeve preferably includes an inner circumference that is sized to creating a frictional engagement between an inner surface of the sleeve and an outer surface of the spring body, and between an inner surface of the spring body and an outer surface of the socket body.

Abstract: A female terminal includes an electric contact portion that has a cylindrical box portion and an elastic contact spring disposed in the inner part of the box portion. An abutment portion of the metal plate is disposed on the upper wall portion of the box portion, and an indent is formed, from the outside of the box portion, at the upper wall portion having the abutment portion disposed thereon. A projection portion is provided at the inside of the box portion, and an apex of the projection portion is made to be a contact portion with respect to the male terminal.

Abstract: Electrical connector including at least one electrical power contact having a cross-section larger than 8 mm2 and adapted to mate with a complementary connector. The at least one power contact includes a front end adapted to be electrically connected with a first complementary contact of said complementary connector. The at least one electrical power contact includes a back pin having a back pin extremity located at the opposite end of the power contact with respect to the front end and adapted to be electrically connected with a second complementary contact of a second connector.

Abstract: The present disclosure relates to a socket for an electric bulb, formed by a tubular body having two longitudinal cavities for receiving contacts crimped onto cables, said tubular body including lateral clip-fastening elements having lugs for locking into the base of a motor vehicle light or headlight. The disclosure provides that the locking elements are provided with internal shoulders having dimensions and positions configured such as: to be engaged behind a transverse surface of the contact when said contact is correctly mounted and to allow insertion into the base of the light or headlight when the clip-fastening elements are biased; and to prevent the movement of the elements which would allow insertion of the socket when the contact has not been correctly engaged.

Abstract: Electrical terminals and methods of manufacturing the same are disclosed. An example terminal is disclosed that comprises a housing and a wire clamp positioned within the housing to secure a wire in electrical contact with a connector pin, the connector pin extending out a bottom surface of the housing to be electrically connected to a printed circuit board, the housing is to have one or more feet to separate the bottom surface of the housing from the printed circuit board.

Abstract: Jack assemblies having cylindrical contacts are provided. For example, an enclosure may provide a cavity with a longitudinal axis for receiving an electrical plug. The jack assembly may also include at least one jack contact positioned in the cavity. The jack contact may include a first end region extending about at least a portion of the axis and a contact region extending from the first end region towards the axis. The first end region may extend completely about the axis or just about a portion of the axis. The contact region may deflect and contact a first conductive region of the plug in multiple contact areas when the plug is inserted into the cavity.

Abstract: When a hobby enthusiast has recharged the battery for a remote controlled vehicle, such as a scale facsimile automobile, boat, helicopter or airplane, the battery must be connected again to the vehicle drive system, to provide power. This operation is typically performed by connecting each lead of an electronic speed controller to each corresponding lead of the battery, through a removable barrel receptacle lead and a mating barrel plug lead respectively, attached to each corresponding lead. An improved connector lead is described herein that protects components that may be attached to either lead in a connection. The charge dissipates in a resistive member that is physically coupled to a conductive member to form at least in part a first lead.

Abstract: A female terminal (30) has a main portion (31) and contact pieces (32) that project from that main portion (31) in a facing state. A male terminal (80) is accommodated into an accommodation space (35) surrounded by the contact pieces (32). The accommodation space (35) is mainly formed by horizontal holes (38) that open laterally. Cross-sectional shapes of surfaces (S) of the contact pieces (32) forming the horizontal holes (38) cut along a cutting plane crossing an axial center of the main portion (31) are straight lines.

Abstract: A coaxial socket contact for connecting to a coaxial transmission medium to form an electrically conductive path between the transmission medium and the coaxial socket contact, the coaxial socket contact includes a first end and a second end opposite the first end with a tubular body between the first end and the second end, the tubular body having a perimeter and a medial region.

Abstract: An electrical cable connector comprising an electrically conductive central body, an outer sleeve rotatably coupled to the central body, and a tubular cam member disposed between the outer sleeve and the central body. When the outer sleeve is rotated around the central body from a first rotational position to a second rotational position, the tubular cam member is displaced from a first axial position to a second axial position, thereby causing a radial camming region in an axial through bore of the tubular cam member to displace fingers of the electrically conductive central body radially inwardly. In that manner, when the connector is plugged into a port or jack comprising a cylindrical body that is at least partially enclosed by the fingers of the central body of the connector, the fingers clamp onto the body of the port, thereby securing the connector to the port.

Abstract: A rectangular tubular terminal connecting portion (11) includes two side plates (17) standing up from opposite sides of a base plate (15) via curved portions (16). A resilient contact piece (20) includes a substantially arcuate turned portion (21) extending forward from a front end (15F) of the base plate (15) and a main portion (22) extending back from an extending end of the turned portion (21). First slits (24) extend back from a front end (11F) of the terminal connecting portion (11) along lateral edges (21S) of the turned portion (21), second slits (25) extend from the rear ends of the first slits (24) along the front ends (15F, 16F) of the base plate (15) and the curved portions (16), and protecting plates (26) defined by the first and second slits (24, 25) are cantilevered toward the turned portion (21).

Abstract: An electrical connector for establishing an electrical contact with a complementary connector, in particular in a high-temperature environment, the electrical connector including: a housing having an essentially cylindrical inner volume with an opening at least at one end; an elongated contact element disposed inside the inner volume to contact the complementary connector when the latter is introduced into the inner volume; and an elongated spring element disposed between a wall of the inner volume and the contact element to resiliently support the elongated contact element. The contact element includes an anchor section clamped between a first and a second part of the housing.

Abstract: An embodiment of an elastic contact device for electrically contacting electronic components is proposed. The contact device includes at least one basic module, which has a longitudinal axis. In turn, each basic module includes an elastic core for defining an elasticity of the basic module; the elastic core undergoes an axial elastic deformation in response to an axial compression. A first contact terminal element and a second contact terminal element are coupled with the elastic core in axially opposed positions. Moreover, one or more elongated contact elements extend axially between the first terminal element and the second terminal element.

Abstract: A female electrical contact (100) has one connecting end (102) which is able to have two states, respectively a non-stressed state, and a stressed state, in which a connecting diameter is reduced, for receiving and maintaining the connection with a mating electrical contact. An annular gorge (107) in an undercut is provided on the wall (105) of the female electrical contact, such that in the non-stressed state, it has a tapered longitudinal cross-section, and in the stressed state, it has a straight longitudinal cross-section. A connector unit that includes at least one such contact, and a process for production are also described.

Abstract: Jack assemblies having cylindrical contacts are provided. For example, an enclosure may provide a cavity with a longitudinal axis for receiving an electrical plug. The jack assembly may also include at least one jack contact positioned in the cavity. The jack contact may include a first end region extending about at least a portion of the axis and a contact region extending from the first end region towards the axis. The first end region may extend completely about the axis or just about a portion of the axis. The contact region may deflect and contact a first conductive region of the plug in multiple contact areas when the plug is inserted into the cavity.

Abstract: A connector for use in attaching a coaxial cable includes a conducting body having a pair of insulators mounted at the ends of the conducting body. The insulators support the ends of a center pin formed from a conducting material. The ends of the center pin can include contact structures having pairs of front and back contact leaves defining pin-shaped connectors that each provide an area of increased surface contact with a center conducting wire of the coaxial cable to enable larger and more consistent current flows and enhanced radio frequency return loss for the connector.

Abstract: A female terminal of a connector has a connection end for connecting with the core of a cable and a contact end for being inserted by a slender male terminal and making electrical contact therewith. The contact end includes a hollow cylinder whose two ends are connected to a neck and formed with an opening, respectively, and whose inner diameter ranges from 3.0 mm to 6.0 mm. The middle section of the hollow cylinder is provided with a plurality of resilient strips extending along an axial direction of the hollow cylinder, such that a slot is formed between each two adjacent resilient strips. Each resilient strip has two ends connected to the hollow cylinder and is 4.5 mm to 12.5 mm in length and 0.5 mm to 1.1 mm in width. Each resilient strip has a central portion deflected toward the axis of the hollow cylinder by a displacement ranging from 0.2 mm to 0.8 mm.

Abstract: One embodiment is a connector for making electrical connection to a bulbous terminal, the connector including: a metal tube with a cylindrical wall extending from a mating end, wherein: (a) two or more slots perforate the wall and extend from the mating end along the tube; (b) two or more apertures perforate the wall and are disposed in a circumferential array disposed a distance from the mating end; and (c) each of the two or more slots transects one of the two or more apertures to divide the mating end of the tube into resilient prongs.

Abstract: An object of the present invention is to provide a connector terminal which can be easily fitted to or separated from a partner terminal (partner connector) even if the space for fitting operation is limited in the fitting direction. The connector terminal has a terminal inserting portion to which the partner terminal is inserted, and a coupling portion intercoupling and electrically interconnecting the inserting portion and a wire connection portion of a coated wire.

Abstract: Contact tubes and coaxial cable fittings with the tubes, including barrel connectors, right angle connectors, and sockets. The elongated, tubular contact tube extends coaxially within each fitting, establishing at least one female juncture for receiving the center conductor projecting from a coaxial connector. The insulators and bushings center and retain the contact tube within the connectors. The contact tubes are rolled from beryllium, copper alloy sheets having slotted portions defined on one or both sheet ends. The slotted portions comprise a plurality of parallel, curved, slots, each of which borders curved metal strips. Half slots at the bottom and top of the slotted portions adjoin each other after rolling to form an additional slot. Because of the shape of the slots and strips a generally pentagonal configuration is assumed after rolling and contraction of the slotted region, such that contact points overlap.

Abstract: A terminal including a tube-shaped electrical contact portion into which an insert portion of a mating terminal is inserted. The electrical contact portion includes: a pair of walls arranged in parallel to each other, which the insert portion is inserted between; and a plurality of elastic pieces provided at one wall of the pair of walls so as to be formed projecting from the one wall to the other wall of the pair of walls, and pushing the insert portion toward the other wall so as to hold the insert portion between the plurality of elastic pieces and the other wall. The plurality of elastic pieces is arranged in parallel to each other at an interval along an insertion direction of the insert portion.

Abstract: In an electrical plug connector in the form of a socket contact, having an inner contact part for the electrical contacting of a pin and having an external retention spring surrounding the inner contact part, the inner contact part is formed of nickel brass.

Abstract: A method of forming an electrical connector includes winding a conducting wire around a carrier strip, cutting the carrier strip to a desired length, forming the carrier strip into a cylindrical member to form an inner tube subassembly, and inserting the inner tube subassembly into an outer tube.

Abstract: An implantable control module of an electrical stimulation system includes a housing, an electronic subassembly disposed in the housing, and a plurality of conductors. The housing defines a connector receptacle configured and arranged to receive a proximal end of a lead. The housing further defines, within the connector receptacle region, a plurality of spaced-apart leaf spring connective contacts. Each leaf spring connective contact is corrugated and wrapped around at least a portion of an inner surface of the connector receptacle. Each conductor couples the electronic subassembly with at least one of the leaf spring connective contacts.

Abstract: An electrical connector is provided. The electrical connector includes a socket housing and a plurality of socket contacts disposed within the socket housing. Each of the plurality of socket contacts comprises a body and at least two members extending from the body towards a pin-receiving end and separated by longitudinal slots. Each of the members has a tapered cross-section thicker towards an end adjacent to the body than towards a distal end through which the socket contact receives a mating pin.

Abstract: A device of and method for an improved electrical contact is disclosed. The electrical contact includes a plurality of axially-aligned electrically conductive wires, each wire being in electrical contact with at least one other wire at a peripheral surface thereof; an electrically conductive inner sleeve disposed around the plurality of wires and having at least one slot extending axially from a leading end that is adapted to allow the inner sleeve to expand radially; an outer shell disposed around the inner sleeve for protecting at least a leading end of the plurality of wires and the inner sleeve; and an attaching portion disposed at a terminal end of the plurality of wires, the inner sleeve, and the outer shell, the attaching portion being in electrical contact with at least the plurality of wires and the inner sleeve and being adapted to place at least the plurality of wires and the inner sleeve in electrical contact with a first electronic device.

Abstract: The female terminal with guiding piece according to the present invention comprises a tubular body and a connecting part. Two vertical walls of the body are provided respectively with spring pieces cut and raised therefrom and formed to have an end on the rear side in the depth direction serving as a fixed end and an end on the front side serving as a free end and the free end coming closer to the vertical wall opposing to said vertical wall. The two vertical walls are provided respectively with guiding pieces at the front ends in the depth direction thereof, said guiding pieces being provided by plate pieces bent inward from the vertical walls into the body to cover spaces between the front ends in the depth direction of said vertical walls and the top ends of the spring pieces.

Abstract: The subject of the invention is a contact element including a front contact part intended to cooperate with a complementary contact part of a complementary contact element, a part for holding the contact element in a connector case socket and a guiding boss, wherein the guiding boss consists of a tab folded from the front to the back of the electrical contact element and exhibiting a rounded nose.

Abstract: An electric contact part 10 of a female type terminal pin 1A includes: a tube member 11; and a projection 21A. A tab 51 of a male type terminal pin 5 is inserted into the tube member 11 via an opening at one end 11a of the tube member 11. The projection 21A is extended to the tube member 11, and projected toward an inside of the tube member 11 so as to partially cover the opening at the one end 11a of the tube member 11. The projection 21A includes: an extending piece 23; and an abutting piece 24. The extending piece 23 is extended to an upper wall 16a of the tube member 11 and extended toward the inside of the tube member 11. The abutting piece 24 is extended from the extending piece 23 toward the upper wall 16a to prevent the extending piece 23 from approaching the upper wall 16a.

Abstract: In a discharge tube, a conductive ferrule is provided on an end portion of a glass tube. The ferrule includes a body that is to be mounted to the outer circumference of the glass tube and has a contact portion to be electrically conductively fixed to a relay connector (or a bearing device). Further included is a conductive portion that extends from the body so as to have elastic contact with an outer lead. The outer lead will not be under load due to the weight of the discharge tube, but the conductive portion solely has elastic contact therewith. Thus, stress concentration on the outer lead can be prevented.

Abstract: A lighting assembly includes a discharge lamp having a discharge tube with a longitudinal centerline reaching between opposite ends of the tube. A pair of electrodes are mounted at opposite ends of the discharge tube. The lamp has a pair of connectors each connected to a different corresponding one of the pair of electrodes. Each of the connectors have at least one pin (a) externally mounted alongside the discharge tube without extending past the ends of the tube, and (b) extending at an angle no greater than an acute angle relative to the centerline. The assembly also has a lamp fixture with an elongate housing and a pair of sockets mounted at opposite ends of the housing. Each of the sockets includes at least one longitudinal slot having an opening extending longitudinally between a proximal side of the slot and an open distal side of the slot. The longitudinal slot has an electrical contact.

Abstract: An electrical connector in the form of a vibrationally stressed socket contact for producing an electrical plug connection, in particular in the automotive field. These electrical connectors are made up of an inner contact part and an external retention spring. The inner part itself includes contact lamellae, which rest against a mating component, preferably a knife blade, at a contact point. In order to ensure that the contact reliability is increased by optimum, normal contact force in each contact lamella, even in the case of tilting or vibrating or wobbling mating components (knife blades), the contact part 6 has at least three contact lamellae pointing away from a center segment, each of the contact lamellae having at least one contact point for producing an electrical plug connection to a knife blade. In the state of a produced, electrical plug connection, the free ends of the contact lamellae rest on support elements, which are designed to be a part of the external retention spring.

Abstract: A contact member is disclosed that includes a trunk part into which a strip-shaped part is formed substantially annularly; a first contact part at a first end of the trunk part; and a second contact part at a second end of the trunk part, the second contact part being positioned inside the first contact part. The first contact part and the second contact part face each other. The strip-shaped part is configured to be elastically twisted to cause the second contact part to come into contact with the first contact part in response to the second contact part being pressed in a direction of the axis of the trunk part. The strip-shaped part includes multiple turn-around parts between the first contact part and the second contact part.

Abstract: A one-piece, controlled insertion force, elastic socket type contact 7 for electrical connectors, including a rear part 11 in the form of a rod defining a first cylindrical zone A and a tubular front part 12 including a second cylindrical zone C extending the rear part open in the forward direction and divided up by slots 13 into elastic beams 14, a spindle-shaped end zone D in which the thickness of the beams 14 gradually decreases in the direction of the open end 15 of the tubular part 12 which further includes a cylindrical segment B divided up by slots 13 into at least two elastic beams 14 which has a cone frustum-shaped zone on its outer surface 16.

Abstract: A pressuretight contact connection for the programming and power supply for fuze electronics is described, which is provided in a housing (10) from which a contact pin (34) projects in an electrically insulated and pressuretight manner in order to make contact with a connecting element (12). The connecting element (12) has a contact surface element (16), which is provided in an insulating housing (14) and has contact fingers (24) in the area of a through-hole (18) which is formed in the insulating housing (14), which contact fingers (24) clasp the contact pin (34) in an interlocking manner when the connecting element (12) and the housing (10) of the fuze electronics are in the mated contact state.

Abstract: An outer conductor (40) of a shield terminal (T) used by being connected with a shielded cable (10) is provided with a stabilizer (46) folded at an intermediate position such that an extending end thereof faces a main portion (41). Thus, even if shield terminals (T) touch each other during transportation, inadvertent deformations of tongue pieces (44) and the stabilizer (46) can be prevented since the leading end of the stabilizer (46) is a folded end to have a larger thickness as compared to conventional ones and is unlikely to enter a slit (43) of another outer conductor (40) or get caught thereby.

Abstract: A female terminal with guiding piece includes a tubular body having two lateral walls and two vertical walls, a connecting part, two spring pieces and two guide pieces. Each vertical wall is a single panel wall having a rectangularly-shaped cutout formed therethrough. The cutout is defined between a front side wall edge and a rear side wall edge and between opposing disposed-apart side wall edges extending in the depth direction between the front side wall edge and rear side wall edge. A respective one of the spring pieces is integrally connected to a respective one of the rear side wall edges and extending inwardly into the tubular body. The guiding pieces are bent inwardly from the vertical walls into the tubular body.

Abstract: A power connector includes a main body and a conductive contact. The main body has a front surface and a sidewall. The front surface defines a receiving cavity. The front of the sidewall defines at least one positioning hole communicating with the receiving cavity, and then a blocking wall is formed at the front of the positioning hole. The conductive contact is received in the receiving cavity of the main body and has a fixing portion, a base portion and connecting portions connecting the fixing and base portions. The fixing portion is formed by a rectangular board bending to form an arch structure. The front of the fixed portion is cut to form at least one cut portion with a free end at front and a connecting end connecting to the fixing portion at back. The cut portion bends outwards to form a blocking lump, the blocking lump engages with the positioning hole and is blocked by the blocking wall. Therefore, the conductive contact can be fastened firmly and securely.