848results about How to "Increase creepage distance" patented technology

An electrical connector assembly for a cable having a plurality of insulated conductors comprises a body having a respective recess for receiving a terminating pin each of the conductors. A respective spigot sealingly engages within each of the recesses and has a passage for receiving an associated one of the terminating pins. Furthermore a seal is associated with each of the spigots for sealing the spigot relative to the associated terminating pin. The provision of a separate spigot for each of the conductors and for sealing engagement within a respective recess in the body enables the spigots to be sealingly fitted to the conductors prior to each spigot being introduced into its recess and sealingly engaged therein. This provides improved insulation of the conductor and increased creepage distance between the mating electrical parts and the outer surface of the housing of the assembly. It also provides the additional advantage that the seal on the conductor tends to be smaller than in prior arrangements so that there is less thermal expansion of the seal when the parts get hot in a downhole environment.

A light-emitting device of the present invention includes: a LED chip 10; a chip mounting member 70 having a conductive plate (heat transfer plate) 71 one surface side of which the LED chip 10 is mounted on and a conductor patterns 73, 73 which is formed on the one surface side of the conductive plate 71 through an insulating part 72 and electrically connected to the LED chip 10; and a sheet-shaped connecting member 80 disposed on the other surface side of the conductive plate 71 to connect the conductive plate 71 to a body of the luminaire 90 which is a metal member for holding the chip mounting member 70. The connecting member 80 is made of a resin sheet which includes a filler and whose viscosity is reduced by heating, and the connecting member 80 has an electrical insulating property and thermally connects the conductive plate 71 and the body 90 of the luminaire to each other.

A feedthrough terminal assembly for an active implantable medical device includes a conductive terminal pin or leadwire, a feedthrough filter capacitor having a first set of electrode plates conductively coupled to the terminal pin or leadwire, and a second set of electrode plates conductively coupled to a housing, ferrule or ground plane of the active implantable medical device, and a non-conductive mullion disposed relative to the terminal pin or leadwire for increasing creepage distance between the terminal pin or leadwire and another conductive element, creating a tortuous path that increases resistance to arcing / flashover.

An electrical coil includes first and second electrically-conductive elements each of a thin, flat, annular configuration formed with a gap to define the turns of a 2-turn coil, and an electrically insulative element also of a thin, flat, annular configuration disposed coaxially between the two electrically-conductive elements and formed with a gap aligned with one end of each turn to permit the ends to be electrically connected together. Also described is a transformer having a secondary winding including a plurality of such 2-turn coils, and a primary winding of a plurality of double-coils each connected together at their mid-portions.

An electrical connector assembly for a cable having a plurality of insulated conductors comprises a body having a respective recess for receiving a terminating pin each of the conductors. A respective spigot sealingly engages within each of the recesses and has a passage for receiving an associated one of the terminating pins. Furthermore a seal is associated with each of the spigots for sealing the spigot relative to the associated terminating pin. The provision of a separate spigot for each of the conductors and for sealing engagement within a respective recess in the body enables the spigots to be sealingly fitted to the conductors prior to each spigot being introduced into its recess and sealingly engaged therein. This provides improved insulation of the conductor and increased creepage distance between the mating electrical parts and the outer surface of the housing of the assembly. It also provides the additional advantage that the seal on the conductor tends to be smaller than in prior arrangements so that there is less thermal expansion of the seal when the parts get hot in a downhole environment.

An electric motor comprising a stator and a rotor, the stator comprising: a stator core having a yoke and a plurality of teeth extending inwardly from the yoke, a slot being formed between adjacent teeth; windings wound around the teeth; and a dielectric slot liner disposed between the stator core and the windings in each slot for insulating the stator core from the windings. Each slot liner comprises a body conforming the stator core in the slot and two ends each with a lip structure protruding relative to the body in a radial direction of the stator to increase the creepage distance between the winding and a distal end of a corresponding tooth of the stator core.

The stator includes a plurality of concentrated winding coils disposed coupled into an annular form through yokes, and a plurality of conductors that couple the coil ends of the concentrated winding coils to each other in a multi-phase connection fashion. Conductors for a U-phase, a V-phase, a W-phase, and neutral points P are each formed of a plurality of holes for inserting therethrough coil ends and are substantially circular with different diameters, and are disposed on the same plane. A connection plate provided with a wall is inserted between the conductors and the concentrated winding coils. A rotating machine includes the above-mentioned stator and a rotor that is rotatable within the stator.

An assembly structure of a case is disclosed. The assembly structure includes an upper case and a lower case. The upper case has a connection portion having a first cavity, a first protrusion, a first trench and a second protrusion arranged from the external side to the internal side thereof. The lower case has a connection portion having a first cavity, a first protrusion and a second cavity arranged from the external side to the internal side thereof. Both the first cavity and the first protrusion of the upper case are opposite to the first cavity of the lower case, and the first trench and the second protrusion of the upper case are opposite to the first protrusion and the second cavity of the lower case, respectively, so as to assemble the upper case and the lower case.

An electrical coil includes first and second electrically-conductive elements each of a thin, flat, annular configuration formed with a gap to define the turns of a 2-turn coil, and an electrically insulative element also of a thin, flat, annular configuration disposed coaxially between the two electrically-conductive elements and formed with a gap aligned with one end of each turn to permit the ends to be electrically connected together. Also described is a transformer having a secondary winding including a plurality of such 2-turn coils, and a primary winding of a plurality of double-coils each connected together at their mid-portions.

A 10kV power distribution circuit insulation tower head is disclosed, which is characterized in that: adopting hydrophobic high-strength insulation bar to be assembled with needle-typed insulator by gold tool and form an insulation tower head entity, or adopting hydrophobic high-strength insulation bar to be assembled with gold tool directly and form an insulation tower head. By using the invention, the insulation level of the power distribution circuit can be greatly improved, the thunder discharge air gap can be obviously enlarged, the lightning stroke and line break accidents can be effectively prevented and the climbing distance can be expanded, further, the structure type is easy to improve self-cleaning ability and the occurrence of pollution flashover can be basically and completely precluded, which is beneficial in charged operation, simple in operation process and improves the operation security.

The invention discloses a lightning protection support insulator, which comprises an insulating hood and a wire clipping hardware fitting which is arranged inside the insulating hood and is composed of an upper pressing block and a lower pressing block. The lightning protection support insulator is characterized in that the lightning protection support insulator also comprises a starting rod connected with the side end of the wire clipping hardware fitting, a insulator with both ends being respectively connected with the lower end of the wire clipping hardware fitting and a cross arm, and a lower steel pin arranged inside the insulator and close to one end of the cross arm. The lightning protection support insulator achieves the combination of the support insulator and an arc protection hardware fitting, and has the characteristics of insulation, conducting wire supporting, arc protection, simplified circuit, low fabricating cost and reusability.

The invention discloses a tool for jointing a temporary lead wire under live working on a rainy day for a distribution line, which comprises an operating rod, and a temporary jointing clamp connected by a connecting part, wherein the operating rod is formed by assembling an upper rod, and one to two sections of lower rod; the middle and lower part of the upper rod is externally wrapped with a section of insulation sleeve, the insulation sleeve is provided with a plurality of silicon rubber umbrella skirts at interval, and the upper end and the lower end of the upper rod are respectively provided with an universal connector and a middle connector; the upper end and the lower end of the lower rod are respectively provided with a connector matched with the middle connector of the upper rod, and a middle connector; the temporary jointing clamp comprises a double-wire clamp body, an upper binding clip and a lower binding clip; the upper part of the connecting part is of a twelve point socket connected with the double-wire clamp body, and the lower end thereof is of a clamp port matched with the universal connector of the upper end of the upper rod of the operating rod. The jointing tool can make the operator appropriately isolate from the electrified body with different potential on a rainy day, and realizes the indirect operation to the electrified body.

A bus bar assembly used for establish electric connections with semiconductor modules of an electric power converter. The bus bar assembly includes a resinous body, a first and a second bus bar to which terminals of the semiconductor modules are to be connected. Each of the first and second bus bars includes a plate body and a plurality of connecting terminals extending from the plate body substantially in parallel to a major surface of the plate body. At least a portion of the body plate of the first bus bar is disposed inside the resinous body. The second bus bar is mounted at the plate body on the resinous body and laid to overlap the first bus bar at a given distance away from the first bus bar. This structure minimizes the misalignment between the first and second bus bars after the resinous body is formed.

The invention relates to a terminal part of a compressor, in particular to a binding post of a cold compressor of highly reliable ceramic insulation medium connection. The binding post comprises an end cover which is welded with a shell of the compressor, and a conductive pillar that is sealed and connected with the end cover by glass; wherein, the glass is used for playing the role of insulation and sealing, the conductive pillar is provided with an insulator separating the surface of the glass from the air, and the insulator is made of the following materials: 92-96% of aluminium oxide, 2-3% of silicon oxide, 1-3% of calcium oxide, 0.5-1.0% of bismuth oxide and 0.5-1.0% of antimony oxide. The binding post has the advantages that specially prepared aluminum oxide ceramics is adopted to replace steatite ceramics (or forsterite) to be taken as the insulator, so that the creep age distance is prolonged, and the phenomenon of overflash is avoided in the low vacuum environment, thereby effectively avoiding the serious result of compressor explosion. At the same time, the expansion of microcrack is prevented, and the probability of air leakage is effectively reduced, so that good connecting effect is formed.

Disclosed is a low magnetic leakage high voltage transformer in which two winding brackets are mounted in an electrically insulative holder frame to hold two primary windings and two secondary windings at two sides, two U-shaped FERRITE cores are inserted into the winding brackets from two sides and abutted against each other, and a straight FERRITE core is inserted into an insertion slot on the electrically insulative holder frame into contact with the abutted U-shaped FERRITE cores and isolated from the primary windings and the secondary windings by baffle flanges of the electrically insulative holder frame, and two electrically insulative caps are capped on the winding brackets and abutted against two opposite sides of the electrically insulative holder frame to increase the creepage distance between conducting terminals of the windings and the FERRITE cores, for enabling the secondary windings to output two high voltages stably for driving multiple loads.

The invention provides an electric connector. The electric connector comprises an insulating base, a solder terminal fixedly arranged in the insulating base and an elastic plate comprising a free end and a fixed end, wherein the free end always keeps the trend of pressing against the solder terminal; the fixed end is fixedly connected with the solder terminal; and the bottom end of a button connected with the upper part of the base is pressed against the free end of the elastic plate. The electric connector is characterized in that the solder terminal comprises a current carrying main board, and a support plate pressed against the bottom of the fixed end extends out of the lower part of the current carrying main board and the upper edge of the current carrying main board is bended outwards to form a capped edge pressed against the top of the free end; the current carrying main board, the support plate and the capped edge of the solder terminal form a C-shaped cross section; and the bottom of the solder terminal is also provided with two solder legs which are one-piece formed, arranged on both sides of the support plate respectively and staggered front and back. Compared with the prior art, the electric connector has the advantages that the current carrying area of the solder terminal is larger, and the conductivity of the solder terminal is improved; and because the solder legs are staggered front and back, the creepage distance is increased, the withstand voltage value of the electric connector is improved, and the electric strength of the product is further improved.

Provided is a wiring of the Damascene structure for preventing the TDDB withstand voltage degradation and for keeping the planarity to prevent the degradation of a focus margin. A trench wiring (213) is formed in an interlayer insulating film, which is composed of a silicon carbide-nitride film (205), a SiOCH film (206) and a silicon oxide film (207) [(e)]. The silicon oxide film (207) is etched at a portion adjacent to the wiring of a polished surface by dry etching or wet etching [(f)]. A silicon carbide-nitride film (SiCN) (214) is formed as a Cu cap film [(g)]. An interlayer insulating film is further formed thereon to form a conductive plug, a trench wiring and so on.

The present invention provides an in-line filament transformer for a vacuum device. The filament transformer comprises: a core; a primary winding and a secondary winding wound around the core, wherein the secondary winding is biased at a high voltage and the primary winding is placed in line with the secondary winding; and a shield for shielding the primary winding. In an embodiment, the transformer comprises a bobbin for incorporating primary winding and secondary winding. An arrangement of increasing creepage distance is incorporated in the bobbin by providing plurality of sections on the bobbin. The invention also provides a shield in the primary section of the bobbin for shielding the primary winding from the secondary winding. In an embodiment the shield is in the form of shield winding of thin wires wound in a defined manner.

The invention relates to a kind of shell joint structure and its joint method. The joint structure consists at least two parts: upper shell, which bears a joint including(from its outside to its inside orderly) first concave, first convex, first flute and second convex; and lower shell, which also bears a joint including(from its outside to its inside orderly) first concave, first convex and second concave. In addition, the first concave and the first convex of the upper shell are relative to the first convex of the lower shell, and the first flute and the first convex of the upper shell are relative to the first convex and the second concave of the lower shell respectively, thus jointing the upper shell and the lower one together. Through the use of this type of shell joint structure and its joint method, shell shadow and line flows can be reduced and the increase of the electricity climbing distance of the electric clearance after the combination of the shells will enhance the appearance of the shells of electric devices and their components as well as their electric characteristic.

An air treatment apparatus and method are disclosed in the present invention, wherein, at least one air treatment unit is included. The unit comprises air inlet, air outlet, air treatment devices and connecting components. The air treatment device is located between the air inlet and the air outlet. The air treatment device comprises at least one of the following components: component for air purification and filtering, blow-through fan, draw-through fan, pump, component for heating, component for dehumidifying, component for humidifying, component for air-cooling. The air treatment unit can be used alone for improving the air quality of the environment. When more than one unit are connected together with the connecting components, the units are teamed up and work together, and an air treatment system is formed.

The invention discloses a clapper-type electromagnetic relay which comprises a magnetic path part, a movable spring part and a fixed spring part. The magnetic path part comprises an iron core, an armature, a yoke and a coil; the coil comprises a coil frame; the iron core is installed in the through hole of the coil frame; a pole shoe is arranged at the upper end of the iron core; the movable spring part comprises a movable reed and a movable contact; the fixed spring part comprises a fixed reed and a fixed contact; the upper end of the coil frame extends towards one side and is provided with a mounting part; the fixed reed is installed in the mounting part; the movable contact is matched with the fixed contact at the mounting part; at least a retaining wall is integrally arranged on the coil frame between the through hole and the mounting part to separate the pole shoe installed in the through hole of the coil frame from the fixed reed installed at the mounting part. The clapper-type electromagnetic relay can increase a creep distance between the iron core and the fixed reed to avoid electric accidents resulted from wrong conduction of the fixed contact and the movable contact which is caused by stacked metal contact splashing materials between the fixed contact and the movable contact, and also can greatly improve the shock resistance of the relay.

An electric motor includes a cylindrical stator that is formed with a plurality of slots. The cylindrical stator has polyphase coils that are formed by winding a plurality of conductive wires in the slots to have polyphase, a wire bundle and an insulating tube covering the wire bundle. Each conductive wire includes a core wire and an insulator that covering the core wire. The wire bundle has a drawing portion, a connecting portion and an elongated portion that is elongated between the drawing portion and the connecting portion for increasing creepage distance between the connecting portion and the housing thereby to increase insulation resistance. The connecting portion of the wire bundle provides a neutral point of the electric motor. The elongated portion and the connecting portion of the wire bundle are covered with the insulating tube.

The invention relates to a multifunctional high voltage electrode for measuring a space charge, which comprises an annular metal shielding case, an annular metal disk, an annular insulating resin disk, a metal hollow round table and a hollow cap structure, wherein part of the annular metal disk is arranged in the annular metal shielding case and is fixed with the annular metal shielding case; the annular insulating resin disk is arranged in the annular metal shielding case and the lower end of the annular metal disk, and is fixed with the annular metal shielding case; the metal hollow round table is arranged on the lower end of the annular insulating resin disk and is fixed with the annular insulating resin disk; the hollow cap structure is arranged on the low end of the metal hollow round table; one end of the outer side of the metal hollow round table is provided with a high voltage electrode binding post sleeved on the annular metal shielding case, and the other end of the outer side of the metal hollow round table is provided with a high voltage isolation capacitance and an impulse connector; and coaxial round holes are formed in the middle of the annular metal shielding case, the annular metal disk, the annular insulating resin disk and the metal hollow round table and are coaxial with the hollow cap structure. The high voltage electrode has the multiple functions of measurement of a general space charge and on-line measurement of the space charge under the condition of simulating space environment and carrying out electron beam irradiation.

An air treatment apparatus and method are disclosed in the present invention, wherein, at least one air treatment unit is included. The air treatment device has at least one of the following components: component for air purification and filtering, blow-through fan, draw-through fan, pump, component for heating, component for dehumidifying, component for humidifying, component for air-cooling. The air treatment unit can be used alone for improving the air quality of the environment. When more than one unit are connected together with the connecting components, the units are teamed up and work together, and an air treatment system is formed. The connecting components further have at least one of the following components, a Wi-Fi module, a Infra-red transmission modules, a Bluetooth Modules.

A process for preparing the insulating body of multi-layer umbrella type toughened glass insulator includes preparing the integrated head part and one umbrella disc, preparing each umbrlle disc, and adhering them together with the electrically insulating adhesive.

The invention discloses a sealed switching connector, which is characterized in that ceramic tubes are sleeved on the excircles on contact elements of the contactor, and at least one end of the excircles is positioned at the end openings of contact pin channels; glass sealing members are integrally sintered between the inner walls of the channels at the inner end openings of the ceramic tubes in the contact pin channels and the contact elements, between the outer walls of the ceramic tubes and the inner walls of the contact pin channels as well as between the inner walls of the ceramic tubes and the contact elements; and the ceramic tubes, a metal shell and sealing-in pins are solidified into a whole by the integrally sintered glass sealing members. The invention greatly improves the high pressure sealing property of the connector by or above 140MPa, so that the connector can completely bear the hydraulic pressure of the special high-pressure vessels and ensure overall sealing of the high-pressure fluid vessels not to be affected while finishing signal transmission.

The invention relates to a vertically grounding down-leading method for the internal side of a composite material tower and a tower thereof, wherein the ground wire cross arm is made from a metal material, a section of an upper metal cross arm of a grounding downlead with a certain length along a lead direction is led from the center of the ground wire cross arm, and the tail end of the upper metal cross arm vertically leads the grounding downlead down. The grounding downlead is linked to the tower by a lower metal cross arm thereof with a certain distance under a lower phase lead, and then is grounded downwards along the tower body. If the lower half tower body is a steel tube, the grounding downlead can be directly connected with the steel tube to be grounded. By the increased upper and lower metal cross arms of the grounding downlead, the tower head grounding downlead can be separated at a certain distance away from the composite material tower body. The invention enhances the line capability of power frequency pollution flashover resistance, improves the line insulating strength of lightening impulse resistance, and avoids burning a composite insulator by a power frequency follow current after the lightening flashover; furthermore, the structure is simple, and easy to implement.

The invention discloses a lightning arrester of an insulator for a power supply line, in particular relates to an outer-gap lightning arrester. The outer-gap lightning arrester is characterized in that an upper metal tool is provided with a pressure adjustment element, a conductive band, a zinc oxide resistance card, an inner discharge electrode, an insulating gasket and an outer discharge gap rod, wherein a thread upper part of an lower end metal tool is provided with an outer discharge gap sheath, and the shape of the outer discharge gap rod is drooping. The outer-gap lightning arrester disclosed by the invention has the advantages: a tiny residual voltage is introduced into the earth and the protection process of electric equipment is finished when the outer discharge gap rod generated by lightning discharges to the outer discharge gap sheath; therefore, the investment cost and the maintenance cost are reduced; the outer-gap lightning arrester is not influenced by the climatic environment, the atmospheric pollution and the geological conditions; the zinc oxide resistance card is not corroded, and the service life is long; the product made of a silicon rubber material has the advantages of lightness, portability, good insulation property, long creepage distance, convenience for construction, reduced labor intensity and safety, stability and reliability for operation. The lightning protection level of the power supply line is improved, and good effects of small investment, large yield, free-maintenance and over 98% of effective protection probability are achieved.

A glass sintering sealed through-wall electric coupler comprises a conductor insertion needle (11), first ceramic insulators (13), a glass insulator (12), second ceramic insulators (14) and a shell (15). Bosses (131) protruding outwards are arranged on the back end surfaces (132) of the first ceramic insulators (13), cavities (141) sunken inwards are formed in the front end surfaces (142) of the second ceramic insulators (14), and the bosses (131) extend into the cavities (141) in the axial direction. The first ceramic insulators (13) or the second ceramic insulators (14) are installed on the shortest path from any point on the conductor insertion needle (11) to the shell (15). According to the electric coupler, the creep distance of any point on the conductor insertion needle (11) to the glass interface of the shell (15) is increased, and therefore the insulation resistance and the voltage-resistance performance of the coupler are improved.