824results about "Dustproof/splashproof/drip-proof/waterproof/flameproof connection" patented technology

A modular header and method of fabricating same for making electrical connection between an array of feed-through pins extending through a wall of a hermetically sealed enclosure of an implantable medical device and lead connector receptacles within the header in which the header is fabricated using a pre-formed molded header module, together with a set or harness of interconnected flexible conductors incorporated and sealed by an overlayer of medical grade polymer material. The assembled modular header is capable of complete pretesting prior to assembly onto an implantable medical device.

An optical cable shield layer connection may include a wire electrically connected to a shield layer of an optical cable. The optical cable shield layer connection may also be sealed, for example, to prevent leak paths. The optical cable shield layer connection may be made when coupling the optical cable to a device or another cable, for example, using a universal joint such as the Millennia® Joint available from Tyco Telecommunications (US) Inc. The wire may provide a ground path from the shield layer or a continuity path from the shield layer to another optical cable.

A crimp terminal includes barrel pieces respectively on both of two sides in a width direction thereof. The barrel pieces are included in a pressure-bonding section for pressure-bonding an exposed part of an electric wire conductor of an insulated wire. The insulated wire includes the electric wire conductor and an insulating cover for covering an outer circumference of the electric wire conductor, and the exposed part is a part of the electric wire conductor which is exposed from a tip of the cover by a predetermined length. The barrel pieces have a length in a longitudinal direction which is longer than the length of the exposed part of the electric wire conductor. The pressure-bonding section pressure-bonds, by the barrel pieces, a continuous part from a tip of the electric wire conductor to a position rear to the tip of the cover.

Apparatus of components and methods for connecting and sealing a pothead to an electrical cable used in an oil well environment, are provided. Electrical leads are anchored in insulating members retained within the pothead. The leads inserted into passages formed through the insulating members each having an elliptically shaped portion. Channels are formed along the surface of the passages and along the circumference of the elliptically shaped portions. Boot seals are provided in the elliptically shaped portions and circumscribe the electrical leads. A hydrocarbon-based liquid is applied to the boot seals to cause them to swell and occupy the space between the leads and the insulators, including the channels.

A method for forming a protected disconnectable joint assembly includes providing a disconnectable joint assembly. The disconnectable joint assembly includes: an electrical transmission power cable including a conductor and a cable insulation layer covering the conductor, the conductor having a terminal end; an electrically conductive cable connector affixed to the terminal end of the power cable and having a connector coupling portion; a busbar including an electrically conductive busbar body, a busbar coupling portion extending from the busbar body, and a busbar insulation layer covering the busbar body; and a disconnectable coupling mechanism mechanically securing the cable coupling portion to the busbar coupling portion to provide a joint between the cable and the busbar. The disconnectable coupling mechanism is selectively operable to disconnect the cable connector from the busbar without severing the cable. The method further includes: providing a joint cover assembly including a tubular, elastomeric cold-shrinkable sleeve body; maintaining the joint cover assembly in an expanded state using a removable holdout device mounted within the sleeve body; mounting the joint cover assembly on the holdout over the joint between the cable and the busbar; and thereafter removing the holdout device from the joint cover assembly to release the sleeve body to contract onto the disconnectable joint assembly such that the sleeve body circumferentially surrounds the joint between the cable and the busbar, overlaps portions of the cable insulation layer and the busbar insulation layer adjacent the joint, and applies a persistent radially compressive load on the cable insulation layer and the busbar insulation layer.

Housing-side intimate contact ribs are formed on a rear end surface of a male connector housing (7), and a holder-side intimate-contact ribs (25) are formed on a mat seal holder 13 which holds a mat seal (12) on the male connector housing (7). These intimate-contact ribs are inserted respectively in inlet portions of intimate-contact cavity portions (24, 26) formed in the mat seal (12), thereby provisionally retaining the mat seal (12). In this condition, metal terminals can be easily and positively passed respectively through wire insertion holes (23) in the mat seal (12).

A corrosion resistant electrical connection structure has an electrically conductive cable with an electrically conductive core and an insulative outer cover. An electrically conductive terminal is electrically connected to a lead of the core that extends beyond the insulative outer cover. A molded hot melt seal seals the lead of the core and the terminal interface section from ambient electrolytes. In an exemplary embodiment, the core is made from aluminum or an aluminum alloy and the terminal is made from a copper alloy.

An electrical connection assembly includes a connector and a cable. The connector includes a plug having a multitude of contacts in electrical communication with the cable wires. The connector further includes a body in which a printed circuit board is inserted. The cable wires are soldered to the bonding pads of the printed circuit board which is encapsulated by an adhesive. The connector further includes a metallic shield enclosing the body and providing a path to the ground. An inner mold encapsulates the space enclosed by the metallic shield. The metallic shield is optionally formed from a pair of metallic shields cans that are crimped and laser welded. The assembly further includes a sleeve attached at a rear face of the metallic shield, an enclosure attached to the connector body, and a pair of face plates attached between the enclosure and the body.

An electrical connection assembly includes a connector and a cable. The connector includes a plug having a multitude of contacts in electrical communication with the cable wires. The connector further includes a body in which a printed circuit board is inserted. The cable wires are soldered to the bonding pads of the printed circuit board which is encapsulated by an adhesive. The connector further includes a metallic shield enclosing the body and providing a path to the ground. An inner mold encapsulates the space enclosed by the metallic shield. The metallic shield is optionally formed from a pair of metallic shields cans that are crimped and laser welded. The assembly further includes a sleeve attached at a rear face of the metallic shield, an enclosure attached to the connector body, and a pair of face plates attached between the enclosure and the body.

A sealed electrical splice assembly includes a housing defining a cavity and including an opening. A conductive bus plate is retained in the cavity. A plurality of electrically conductive terminals are received in the cavity are electrically connected to the bus plate. The plurality of terminals are connected to a plurality of wire conductors. A seal plug is disposed in the cavity through the opening adapted to sealingly engage an interior surface of the housing surrounding the seal plug. An end cover overlies the seal plug disposed in the opening. The cavity receives the plurality of terminals through the end cover and the seal plug thereby allowing the seal plug to sealingly engage the plurality of wire conductors.

A dual orientation plug connector having a tab portion with first and second opposing exterior surfaces that are substantially identical, parallel and opposite each other. Each exterior surface may have a plurality of electrical contacts. A substantially u-shaped metallic band surrounds a portion of the periphery of the plug connector. A contact assembly having an upper contact carrier, intermediate conductive plate and lower contact carrier may be disposed within the tab portion of the plug connector. A circuit assembly may be disposed within a body portion of the plug connector and electrically coupled to the plurality of electrical contacts.

A method for coupling ends of two insulated conductors includes coupling a core of a first insulated conductor to a core of a second insulated conductor. Exposed portions of the cores are located inside a box with an open top. Electrically insulating powder material is placed into the box and a first plunger is inserted through the open top of the box to compact the powder material. Additional electrically insulating powder material is placed into the box and a second plunger is inserted through the open top of the box to compact the powder material into compacted powder material that surrounds the exposed portions of the cores. The compacted powder material is formed into a substantially cylindrical shape. A sleeve is placed over the compacted powder material and coupling the sleeve to the jackets of the insulated conductors.

To decrease cap diameter covering a terminal splice and improve workability and waterproof performance, a stopper is inserted in one opening of a heat shrinkable tube. The heat shrinkable tube is heat-shrunk in this state, then a cap having end an closure is formed. A fluid thermosetting waterproofing agent is injected into the cap from a second opening. A thermal splice, which is formed from welded strands stripped from a plurality of wire terminals, is inserted and immersed in the thermosetting waterproofing agent. Then, the entire cap is heated and heat-shrunk at a predetermined temperature and the thermosetting waterproofing agent is heat-hardened.

A wire connection part of a terminal fitting includes: a barrel piece which is caulked while covering a tip end of a wire, thereby being crimped to the wire; a serration part formed on an inner surface of the barrel piece and connected to a core of the wire; and a water stop part mounted on the inner surface of the barrel piece to close a gap with the wire. A projecting piece mounted anterior to the serration part to position a tip end of the core is mounted to the barrel piece. The tip end of the core is positioned by the projecting piece, whereby the positional deviation of the wire can be prevented.

An aluminum electric wire with crimp-type terminal includes a coated electric wire including a conductor having a plurality of twisted aluminum element wires made of an aluminum alloy, a conductor portion where the plurality of aluminum element wires exposed by stripping an insulating coating of the coated electric wire are integrally formed into a solid wire, a crimp-type terminal made of a copper alloy having a conductor crimping portion crimped to couple to the conductor portion formed into the solid wire, and a water-repellent agent provided for a front side exposed conductor portion and a rear side exposed conductor portion 49 exposed to outside air without being covered by the conductor crimping portion of the crimp-type terminal.

A crimp terminal includes a pressure-bonding section to which at least a conductor tip of an insulated wire is connected by pressure bonding, the insulated wire in which a conductor is covered with an insulating cover and an insulating cover on a tip side is peeled to expose the conductor to obtain the conductor tip, and a terminal connection section to which another connection terminal is allowed to be connected. The terminal connection section and the pressure-bonding section are configured as different parts, and a connection section in which the terminal connection section and the pressure-bonding section are connected in series in the order named from a tip side to a rear side in a long length direction is configured.

An electrical connector may include a conductive body having a conductor receiving passageway therein to receive the conductor of a cable end. The conductive body may also have a fastener receiving passageway intersecting the conductor receiving passageway, and a fastener may be positioned in the fastener receiving passageway for securing the conductor. The connector may also include an insulating boot associated with the conductor receiving passageway. The insulating boot may include an insulating tube, and at least one rupturable seal closing the insulating tube and rupturing upon initial insertion of the cable end therethrough. The rupturable seal may also be compliant to accommodate different sized cable ends and form a seal with adjacent portions of the cable end. A pair of seals may be provided with an optional sealant material therebetween.

A filling recess (25) for a sealant “s” is formed in a bottom of a fitting recess (22) and a boundary stepped surface (30) is formed around the filling recess (25) to define an annular area between the filling recess (25) and the outer peripheral edge of the boundary stepped surface (30). A detecting stepped surface (34) is formed around the upper edge of the filling recess (25) and is slightly lower than the boundary stepped surface (30). A filled amount of the sealant “s” is proper if the detecting stepped surface (34) cannot be seen, but the boundary stepped surface (30) can be seen. The filled amount is too little if both stepped surfaces (34, 30) can be seen, and it is excessive if neither of the stepped surfaces (34, 30) can be seen.

An electrical terminal is provided for terminating a wire. The electrical terminal includes an electrical contact and a crimp barrel extending from the electrical contact. The crimp barrel is configured to be crimped around an end of the wire. The crimp barrel includes a base and opposing side walls that extend from the base. The base and the side walls define an opening of the crimp barrel that is configured to receive the end of the wire therein. The side walls extend outwardly from the base to ends. The side walls include base segments that extend from the base and end segments that extend from the base segments and include the ends. A sealing wing extends from the end of at least one of the side walls. The side walls are configured to be folded over when crimped over the end of the wire such that a gap is defined between the end segment and the base segment of at least one of the side walls. The sealing wing is configured to extend within the gap between the end segment and the base segment of the corresponding side wall when the side walls are crimped over the end of the wire.

An electrical terminal is provided for terminating a wire. The electrical terminal includes an electrical contact and a crimp barrel extending from the electrical contact. The crimp barrel is configured to be crimped around an end of the wire. The crimp barrel includes a base and opposing side walls that extend from the base. The base and the side walls define an opening of the crimp barrel that is configured to receive the end of the wire therein. The side walls extend outwardly from the base to ends. The side walls include base segments that extend from the base and end segments that extend from the base segments and include the ends. A sealing wing extends from the end of at least one of the side walls. The side walls are configured to be folded over when crimped over the end of the wire such that a gap is defined between the end segment and the base segment of at least one of the side walls. The sealing wing is configured to extend within the gap between the end segment and the base segment of the corresponding side wall when the side walls are crimped over the end of the wire.

Apparatus of components and methods for connecting and sealing a pothead to an electrical cable used in an oil well environment, are provided. Electrical leads are anchored in insulating members retained within the pothead. The leads inserted into passages formed through the insulating members each having an elliptically shaped portion. Channels are formed along the surface of the passages and along the circumference of the elliptically shaped portions. Boot seals are provided in the elliptically shaped portions and circumscribe the electrical leads. A hydrocarbon-based liquid is applied to the boot seals to cause them to swell and occupy the space between the leads and the insulators, including the channels.

A coaxial cable connector including a connector body, a compression member axially movable with respect to the connector body, a clamp having a cable end, a terminal end, and an inner bore, the inner bore having a contact surface configured to contact an outer conductor of a coaxial cable, the cable end having a slot extending toward the terminal end, and a cable seal having a band, a link, and an engagement member, the band located adjacent the contact surface, the link configured to fit into the slot, and the engagement member attached to the link opposite the band, the engagement member located adjacent the clamp, wherein the engagement member provides radially inward pressure, and wherein, upon assembly to the coaxial cable, the band forms an environmental seal between the contact surface and the outer conductor of the coaxial cable is provided. An associated method is further provided.

A crimped terminal attached aluminum electric wire includes an aluminum electric wire that includes a conductor part made of aluminum or aluminum alloy and an insulative coating part which surrounds the periphery of the conductor part, and a crimped terminal that is crimped to the conductor part which is exposed by removing the insulative coating part at an end of the aluminum electric wire. The crimped terminal includes a conductor crimping part which is crimped to the exposed conductor part, and an end side conductor crimping part which is formed at an end at the side of the crimped terminal to which the aluminum electric wire is connected, and which is crimped to the conductor part at a radial compression rate which is smaller than that at which the conductor part is crimped by the conductor crimping part.

A replaceable sealing element for sealing together two mating electrical connectors includes a sealing body having two opposed ends, a side wall extending between the two opposed ends, a threaded portion that is defined on the side wall for releasably mating with a first electrical connector of the mating electrical connectors, and either a slot or a protrusion at one of the opposed ends of the sealing body that is configured to be accessed by a tool for replacing the sealing element. A first seal is positioned on the side wall for sealing contact with the first electrical connector. A second seal is positioned on the side wall for sealing contact with a second electrical connector of the mating electrical connectors. Also described is an electrical connector having a replaceable sealing element.

A connection structure of an electric wire and a terminal includes the electric wire, the terminal, and a seal part. The electric wire has an insulating coated part in which a conductor part is covered with an insulating material, and a conductor exposed part in which the insulating material of an end of the electric wire is removed. The terminal includes a first crimp part crimped to the insulating coated part, and a second crimp part crimped to the conductor exposed part. The seal part is made of thermoplastic elastomer and covers a surface including the first crimp part and the insulating coated part of a side extending from said first crimp part toward a direction opposite to the end of the electric wire and a surface of the second crimp part in an extension direction of the electric wire.

A corrosion resistant electrical connection structure has an electrically conductive cable with an electrically conductive core and an insulative outer cover. An electrically conductive terminal is electrically connected to a lead of the core that extends beyond the insulative outer cover. A molded hot melt seal seals the lead of the core and the terminal interface section from ambient electrolytes. In an exemplary embodiment, the core is made from aluminum or an aluminum alloy and the terminal is made from a copper alloy.