2362results about "Insulating bodies" patented technology

According to the present invention there is provided a snap in locking cable connector with a cylindrical housing having an entry end aperture and an exit end aperture. The entry end aperture can accept the snap-in spring steel adapter of U.S. Pat. No. 6,080,933 as well as the exit end peripheral spring steel locking ring described in this patent to provide a connector that allows rapid and simplified installation of armored cable into a junction or circuit box. The cylindrical housing includes an annular groove or ridge about the inner periphery thereof in the area of the entry end for retention of the spring steel adapter. An electrical cable connector of this type that relies upon frictional or interference fit for retention of the spring steel adapter is also described. Retention of the spring steel adapter with a screw, rivet or similar fastener is also described.

A flexible insulating tape (16) contains a flexible backing (18) and a mica or mica-like silicate matrix (20) with insulating resin (17) and intercalated metal ions (12) between the matrix (2) where the resin (17) and the ions (12) are intimately disposed next to the mica (20).

A snap in locking cable connector is composed of two mating pieces that snap together and provide a connector for armored or metal clad electrical conductors. One piece includes a member including a smooth outer cylindrical section having an inner diameter that may accommodate a spring steel adaptor with flanges to hold the spring steel adaptor in place. The spring steel adaptor is used in conjunction with an electrical junction box to fix the location of the locking cable connector with respect to the junction box. Another piece includes a spring steel locking ring provided to receive an armored cable and lock into the member. The spring steel locking ring has tangs allowing unidirectional insertion into the member and restricting withdrawal motion from the member. The spring steel locking ring also includes oppositely directed tangs to permit reception of the armored cable in one direction and restrict its movement in the reverse direction.

A cable grommet system for installation in data centers, offices and the like, for sealing cable openings in raised flooring, wall or ceiling panels, server cabinets, etc. to facilitate the installation and revision of wiring and cabling to server installations while minimizing losses of any provided conditioned air. A wide variety of grommet configurations is possible with a limited number of component parts. An advantageous acute angle mounting of sealing brushes enhances the sealing effectiveness thereof, particularly for smaller sizes of cable openings. In some embodiments, a novel arrangement of electrical conductors is incorporated into the grommet structures for dissipation of electrostatic charges, enabling the basic frame components to be formed of a flame retardant material.

An electrical conduit to junction box connection system is designed connect conduit to junction boxes. The system incorporates a compression nut and a body. The body includes a box engagement region, a nut engagement region, and a conduit engagement region. The box engagement region includes a radially extending leading and follower tab, a root surface, a tab centering ledge, and a tab centering flank. The nut engagement region includes a nut engagement region thread that cooperates with the compression nut. The conduit engagement region includes a conduit compression system. During installation, the leading tab is inserted into the knockout. An edge of the knockout is positioned in contact with the root surface. The body is reoriented which positions the follower tab inside the junction box. The compression nut is manipulated to compress the junction box between the compression nut and the leading and follower tabs.

The present invention provides for a method of impregnating a matrix with a high thermal conductivity filled resin 32, which produces a resin impregnated matrix. The high thermal conductivity material 30 comprises 5-60% by volume of the resin 32. This is compressed by approximately 5-30%, and the distances between the high thermal conductivity materials loaded in the resin are reduced, and the resin is then cured.

By providing at least two integrated components, an outer housing and an inner sleeve member, with the inner sleeve member being securely mounted to the outer housing in a manner which prevents its separation from the housing, an efficient, easily manufactured and assembled cable connector is realized. In the preferred embodiment, the inner sleeve member is press fitted into the housing in order to provide the desired secure, integrated affixation of these components. Furthermore, the inner sleeve member is constructed in a generally hollow cylindrical shape with at least two arm members integrally formed therewith, each of which angularly slopes inwardly from the cylindrical wall of the sleeve member, and includes a distal end portion which is angularly disposed relative to the arm member in at least one direction and preferably in two directions.

A fastener for securing first and second members together at opposing respective flat surfaces thereof, whereby at the point of joining the first member has an aperture concentric with an aperture of the second member, the fastener comprising first and second tubular portions concentric with one another, whereby the second tubular portion is of reduced outside diameter relative to the first tubular portion, a circular flange forming a transverse interior end of the first tubular portion, an interior end of the second tubular portion being rigidly joined to the circular flange, at least one resilient arm being formed in and extending from a sidewall of each one of the first and second tubular portions toward the flange, the at least one resilient arm of each portions each having a free end including a retaining end surface adapted for having close proximity to a side portion surrounding the respective apertures of the first and second members.

A grommet routes a wire harness from an inner side of a vehicle door into a vehicle body. A depression wraps around an edge of the door with a first part on a hinge surface of the door and a second part on the inner side. The grommet has an elastic member for fitting within the first part and a rigid retainer member extending around the edge into the second part. The members are secured together. The elastic member has a grooved periphery for receiving a flange surrounding an opening linked to the first part of the depression. The retainer member is secured in the second part of the depression by a fastener inserted into an aperture in the second part. The members have passageways to route the harness around the edge of the door. Fins on an underside of the elastic member seal against the first part.

In one embodiment the present invention improves the heat flow from an electrically insulated object 13 by providing an enhanced conduit at the interface between the layers of insulating tape 16. The tape 16 has been surface coated with a high thermal conductivity (HTC) material, so that the interface between the layers of tape 23 provides a pathway for the heat to reach the environment 24. The radiation of heat through the tape layers is also increased by the surface coatings.

The invention discloses a special material of polyvinyl chloride for electric isolated sleeve, comprising polyvinyl chloride, stabilizing agent, modifying agent for processing, shock resistance modifying agent, plasticizer, stearic acid, calcium stearate, polyethylene (PE) wax, pigment and 6000 mesh inorganic materials powder. The preparation method is as below: combine the measured 6000 mesh inorganic materials powder and the stearic acid first and then add shock resistance modifying agent to modify the inorganic materials powder. The combined material is granulated by an extruder for reservation. Then mix the measured material evenly by the high mixing machine to form the special powder material for polyvinyl chloride insulated sleeve or granulate the special powder material for polyvinyl chloride insulated sleeve by the extruder to form the special granule for polyvinyl chloride insulated sleeve which is later molded by the plastic extruding machine to form insulated electric sleeve with various specifications. The invention has the advantages of sound dispersion and compatibility, better product quality and lower cost.

The present invention relates to a passive layer including graphene for the attenuation of near-field electromagnetic waves and heat dissipation. The passive layer blocks electromagnetic waves radiated from an external electronic device or prevents electromagnetic waves generated in an electronic device from emitting to the outside. The passive layer is designed to reduce interference between transmission circuits of a device in the near-field region or influence such as malfunction caused by external electromagnetic waves. The present invention also relates to an electromagnetic device and a circuit board, each including the passive layer.

The invention discloses a fire-retardant insulating polyvinyl chloride material and an electrical sleeve made from the material. The fire-retardant insulating polyvinyl chloride material comprises the following raw materials in part by weight: 100 to 150 parts of polyvinyl chloride, 0.2 to 5 parts of heat stabilizer, 5 to 20 parts of compatibilizer, 20 to 60 parts of fire retardant master batch, 0.3 to 1 part of lubricant, 1 to 3 parts of titanium white powder, 10 to 20 parts of impact modifier, 2 to 4 parts of processing aid and 5 to 20 parts of calcium carbonate. The fire-retardant insulating polyvinyl chloride material provided by the invention has excellent flame retardant property and insulating property; the oxygen index can be over 33.4; the test is up to V-0 level according to the measurement standard of GB/T2048-2008 plastic combustibility; and the resistivity can be up to 1.1*1,011 Omega.m. Therefore, the material can meet the requirement on insulation and fire retardance of a low-voltage wire cable.

The invention discloses a spherical silicon dioxide/polyimide composite film and a method for making the same as well as an application. The method for making the spherical silicon dioxide/polyimide composite film comprises the following steps that: 1) spherical silicon dioxide particles are scattered into an organic solvent evenly to obtain the spherical silicon dioxide particle suspension liquid; 2) a surface treatment agent, a molecular weight modifying agent, an auxiliary adhesive, a flatting agent and aromatic series diamine are dissolved inside the spherical silicon dioxide particle suspension liquid; organic dicarboxylic anhydride is added to be stirred in order to obtain a spherical silicon dioxide/polyamide acid mixing resin solution; 3) the mixing resin solution is coated on the surface of a flat substrate and is heated up to make the solvent volatilize and complete the imide reaction to obtain the spherical silicon dioxide/polyimide composite film. The spherical silicon dioxide/polyimide composite film has good mechanical property, good corona resistance, low thermal coefficient of expansion and low moisture absorption ratio, and has important application value in an insulating system of a frequency conversion speed motor.

A double wire seal has a first grommet for sealing a conductor relative to a substrate having opposite sides and an opening therethrough for a conductor. The first grommet has axially opposite ends. A second grommet for sealing the conductor relative to a door panel having opposite ends and an opening therethrough for the conductor. The second grommet has axially opposite ends. The first grommet secures the conductor to the substrate. The second grommet secures the conductor to the door panel.

A locking claw (23a) to be locked to a through-hole (H) projects outwardly from a peripheral wall (21) of a resinous inner member (20). At least one pair of locking holes (24) is formed on a locking flange part (22) projecting from the peripheral wall (21). An annular concavity (12a) (13a), on which the locking flange part (22) fits, is formed on an inner peripheral surface of a large-diameter cylindrical part (12, 13). Locking projections (12a-1, 13a-1) project from a leading end of a side wall of the annular concavity (12a, 13a). The locking projections (12a-1, 13a-1) are inserted into and locked with the locking holes (24). Locking claws (123a-126a) project from the resinous inner member (120) and are locked to a through-hole (H1) of the body panel (P1). A pair of flexible locking pieces (123-126), to be locked to the body panel (P1), project from each of a shorter side and a longer side of an elliptic peripheral wall (121) of the resinous inner member (120) projecting from an open end of the large-diameter cylindrical part (112, 113). A leading end of the locking pieces (123-126) project outwardly from an intermediate position of an outer surface of the locking pieces (123-126). The locking pieces on the longer side are curved longitudinally to form a circular arc shape.

The grommet having a longitudinal axis includes a funnel shaped portion having a flared end, a narrowed end and a conical wall with external and internal conical faces. The external conical face includes an external circular groove having a groove base. The grommet further includes a tubular portion extending outwardly from a circular joint section formed at the narrowed end of the funnel shaped portion. The grommet is configured to mount a wire harness for vehicles containing a water-trapping zone, and to be installed into a through-hole formed in a body panel of a vehicle. The funnel-shaped portion includes at least one device for improving the flexibility of and/or space availability for the wire harness to be mounted including an extended tubular portion to hold the water-trapping zone of the wire harness, a structural configuration allowing the length along the longitudinal axis of the funnel shaped portion to be reduced such that the wire harness can be wired substantially alongside the body panel, and a plurality of funnel ribs having closely arranged first end sections that form a circular space around the tubular portion.

The invention relates to an insulating adhesive film for a laminated bus bar. The insulating adhesive film comprises an insulating film layer, and a hardened or semi-hardened adhesion agent layer which coats on the insulating film layer, wherein the thickness of the insulating film layer is 0.025-0.50mm; the thickness of the adhesion agent layer is 0.010-0.1mm; the formula of the adhesion agent layer comprises the following raw materials by weight percent: 20-50% of saturated polyester resin A, 5-30% of saturated polyester resin B, 2-20% of epoxy resin, 1-10% of isocyanate, 20-70% of a fire retardant and 0.05-5% of a dispersing agent; the limiting viscosity of the saturated polyester resin A is 0.2-1.2dl/g; the glass transition temperature Tg is -40 DEG C to 50 DEG C; the limiting viscosity of the saturated polyester resin B is 0.2-1.2dl/g; the glass transition temperature Tg is 51 DEG C to 100 DEG C; and the number-average molecular weight of epoxy resin is 500-70,000. The adhesion agent layer of the insulating adhesive film has the characteristics of after-tack resistance, insulativity, good fire resistance and the like, and has the characteristics of high adhesion with a metal plate, excellent bending processability, cold and hot shock resistance and the like after the laminated bus bar is prepared.

A grommet is provided for insertion into a hole defined through and surrounded by a housing wall of an electrical device through which one or more electrical connectors exit. The grommet generally includes first and second legs connected by a connecting portion. The first and second legs have flange portions and lip portions extending outwardly from the first and second leg's end portions generally opposite the connecting portion. The flange and lip portions collectively define at least one groove for receiving a portion of the housing wall. The grommet also includes a slit extending at least partially between the first and second legs, and at least one aperture for engagingly receiving at least one electrical connector therethrough. The grommet, when engaged with the hole, seals against the housing wall and the electrical connector within the aperture to thereby inhibit the ingress of moisture through the hole.

Anti-skid protrusions 26 and 27 are formed on the inside of a rubber boot 20 which fits on the smooth external surface of an electrical connector housing 10. Since the connector housing 10 has no molded supports for the boot, production cost is reduced.

The present invention relates to a grommet capable of easy installation by reducing an insertion resistance when conducting an insertion of the grommet into an opening of a vehicle panel. The configuration of the grommet allows molds for forming the grommet to have reduced processing costs, and molding and installation time can also be decreased. The grommet includes wire harness holding areas for tightly engaging around the periphery of the wire harness and an engagement area which fixedly engages an opening provided on a vehicle panel. A tapered area connects a wire harness holding area and an engagement area with a near-conical tapered surface extending over the outer surface of a tapered area, and a plurality of linear convex areas are provided to extend from a wire harness holding area to the engagement area, in an insertion direction of the grommet over the entire periphery on the tapered area.