25results about How to "Increase insulation distance" patented technology

The invention relates to the technical field of switch devices, and particularly discloses a vacuum parallel switch and a switch cabinet. The vacuum parallel switch comprises an isolation contact, an isolation disconnecting link, a grounding contact, a vacuum arc extinguishing mechanism and a transmission mechanism. The isolation contact is used for being electrically connected with a main bus; the isolation switch is provided with an auxiliary contact. The grounding contact is arranged on one side of the isolation switch and can rotate along a first rotation direction to be contacted with the grounding contact or rotate along a second rotation direction to be contacted with the isolation contact; the vacuum arc-extinguishing mechanism is arranged on the other side of the isolation switch, a static contact of the vacuum arc-extinguishing mechanism is used for being electrically connected with a main bus, and a moving contact of the vacuum arc-extinguishing mechanism can be in contact with the static contact under the action of self-closing force; the transmission mechanism is connected with the moving contact, and in the process that the isolation disconnecting link rotates in the first rotation direction, the auxiliary contact can be clamped with the transmission mechanism, and the moving contact is driven to be separated from the static contact through the transmission mechanism. The vacuum parallel switch is high in use safety and compact in structure.

The invention discloses a composite cross arm which comprises a first cross arm, the first cross arm is of an inverted-V-shaped structure, and the top and the two ends of the first cross arm are used for hanging wires respectively; one end of each second cross arm is connected to the middle of the first cross arm, the other end of each second cross arm is used for being connected with an electric pole, the second cross arms are obliquely arranged in the length direction, the second cross arms are arranged below the first cross arms, and the second cross arms and the first cross arms are located in the same vertical plane; and the other ends of the two second cross arms are connected to the two sides of the electric pole through the two connecting fittings respectively. According to the composite cross arm, an all-insulation structure is adopted, the hanging height of the wire is integrally increased through the second cross arm, accidents such as tripping caused by electric shock of birds can be effectively prevented, the safety is higher, and the operation and maintenance cost is lower. The invention further discloses a power transmission pole.

The invention discloses an anti-explosion scroll compressor, and relates to the technical field of scroll compressors, in particular to a scroll compressor with an anti-explosion function. An explosion-proof junction box assembly is arranged on a compressor body; a junction box of the explosion-proof junction box assembly is in circular projection welding connection with the compressor body; the left side and the lower side of the junction box are provided with cable gland mounting holes, and a cable gland A used for connecting a power cable and a cable gland B used for connecting a protector cable are assembled in the cable gland mounting holes respectively. The wiring T-shaped seat is arranged on the wiring post; a power supply cable penetrates through the cable gland A and then is connected to the wiring T-shaped seat through a bolt; the temperature protector penetrates through the cable gland B and then is placed in the junction box; and an isolation gasket is arranged on the junction box cover and is assembled and tightened with the junction box through an M5 bolt. According to the technical scheme, the problems that a conventional compressor junction box in the prior art is relatively simple in protection, poor in sealing performance, prone to sparking when making contact with metal impurities or liquid, flammable and explosive in a flammable gas environment and the like are solved.

The high-voltage winding comprises a winding body, a high-voltage coil and a high-voltage insulating layer, a wire is wound on the winding body to form the high-voltage coil, the high-voltage coil comprises a plurality of sections of coils, and the high-voltage insulating layer wraps the high-voltage coil and the winding body; a supporting piece is arranged between any two adjacent sections of coils and comprises a plurality of supporting blocks and a fixing ring, a plurality of first clamping grooves are formed in the fixing ring, and the supporting blocks are fixed to the fixing ring through the first clamping grooves. The high-voltage winding is provided with the supporting piece used for fixing the relative position of the coil, and the coil is prevented from displacing in the moving transportation, mold assembling and forming stages of the high-voltage winding. The utility model further discloses the dry-type transformer.

The invention belongs to the technical field of power supply equipment, and particularly provides a contactor and a power supply system. The contactor comprises a shell, a push rod and three groups of contact assemblies, and movable contacts of the contact assemblies are arranged at intervals along the moving direction of the push rod. And the spacing distance meets the condition that the second contact assembly and the third contact assembly are simultaneously in the disconnected position when the first contact assembly is in the closed position and the first contact assembly is in the disconnected position when the second contact assembly and the third contact assembly are simultaneously in the closed position, and the movable contacts of each group of contact assemblies are in insulation fit with the push rod. The power supply system comprises a first battery pack, a second battery pack and the contactor. According to the invention, by setting the special position relation of the three groups of contact assemblies, the series charging loop and the parallel discharging loop of the power supply system are ensured not to be simultaneously communicated or adhered, so that the safety of the power supply system is greatly improved.

The invention discloses a composite cross arm which comprises a first cross arm, the length direction of the first cross arm is arranged in the horizontal direction, and the two ends of the first cross arm are used for hanging wires; one end of each second cross arm is connected to the middle of the first cross arm, the other end of each second cross arm is used for being connected with an electric pole, the second cross arms are obliquely arranged in the length direction, the second cross arms are arranged below the first cross arms, and the second cross arms and the first cross arms are located in the same vertical plane; the other ends of the two second cross arms are connected with the two sides of the electric pole through the two connecting fittings respectively; one end of the third cross arm is connected with the middle of the first cross arm, the other end of the third cross arm is used for hanging a wire, the length direction of the third cross arm is arranged in the vertical direction, and the third cross arm is located above the first cross arm. The invention further discloses a power transmission pole.

A small-limit monorail end elbow device comprises an end elbow and an insulating base, the insulating base is fixed on a track beam, a T-shaped groove is formed in the back face of an inclined section of the end elbow in the line direction, a T-shaped clamping head at the top of the insulating base is clamped in the T-shaped groove, and when the end elbow slides along the line, the T-shaped groove slides along the T-shaped clamping head. The insulating base is clamped in the T-shaped groove at the bottom of the end elbow, so that the end elbow can slide on the insulating base along the line direction after being installed, and the risk that the insulating base is damaged due to thermal expansion and cold contraction of the end elbow is effectively overcome.

The application discloses a composite cross arm, comprising a first cross arm whose length direction is arranged along a horizontal direction and whose two ends are used for hanging a wire through strain clamps; one end of each second cross arm is connected to the middle of the corresponding first cross arm, the other end of each second cross arm is used for being connected with an electric pole, the second cross arms are obliquely arranged in the length direction, and the second cross arms are arranged below the first cross arms and located in the same vertical plane with the first cross arms; the other ends of the two second cross arms are connected with the two sides of the electric pole through the two connecting fittings respectively; one end of the third cross arm is connected with the middle of the first cross arm, the other end of the third cross arm is used for hanging a jumper wire, and the length direction of the third cross arm is arranged in the vertical direction and located above the first cross arm; one ends of the two strain insulators are connected to the two sides of the middle of the first cross arm respectively, the other ends of the two strain insulators are used for hanging wires through strain clamps, and the length direction of the strain insulators is perpendicular to the length direction of the first cross arm. The invention further discloses a power transmission pole.

The present invention provides an electromagnetic relay, which can ensure a large insulation distance with a movable contact piece. The moving component is made of a resin with electrical insulation. The moving component can slide relative to the housing in a moving direction. The moving component includes a first component and a second component. The second component is independent of the first component. The second component is connected to the first component by a buckle. The first component includes a first protrusion. The second component includes a second main body, a first locking portion and a first arm. The first locking portion is locked to the first protrusion in the moving direction. The first arm has a shape that protrudes from the second main body in a supporting direction and bends toward the moving direction. The first arm connects the second main body with the first locking portion. The thickness of the first arm in the supporting direction is smaller than the thickness of the first locking portion in the supporting direction.

This utility model patent discloses a box-type substation high-voltage cable box, which includes a rectangular box body with an opening at the top. The high-voltage chamber base has a rectangular hole, and the upper edge of the box body is fixedly connected to the rectangular hole. The lower end of the box body is a lower sealing plate with three through holes. Each through hole has a semi-circular notch I, and an angle steel I is fixed to the lower end of the notch. A cable clamp is fixed to the angle steel I. Sliding grooves are provided on both sides of the through holes. Three movable plates are slidably connected to the lower sealing plate. The movable plates are slidably connected to the sliding grooves on both sides. Each movable plate has a semi-circular notch II. The movable plates can slide to cover the through holes. This device eliminates the need to increase the overall height of the substation, increases the connection height of the cables in the high-voltage chamber, increases the insulation distance between the cable overlap surface and the lower end of the base, improves the reliability of the substation's safe operation, and reduces manufacturing costs. By optimizing the cable through hole structure, it can accommodate more specifications of connecting cables, making cable threading, installation, and fixing convenient and improving cable connection efficiency.

The utility model relates to the technical field of electronic control devices, and relates to a mounting seat and a relay. The mounting seat comprises a base and an isolation plate group which are integrally formed, the base is provided with a first mounting groove and a second mounting groove, the first mounting groove is used for mounting a yoke and a permanent magnet, and the second mounting groove is used for mounting a coil; the separation plate group comprises a first separation plate, the first mounting groove and the second mounting groove are separated through the first separation plate, and an opening of the first mounting groove and an opening of the second mounting groove are located in the two opposite sides of the base in the first direction; the base is also provided with a third mounting groove for mounting the contact part, and the third mounting groove is formed in at least one side of the second mounting groove along the second direction; the separation plate set further comprises a second separation plate, and the second separation plate is located between the third installation groove and the second installation groove so as to separate the second installation groove from the third installation groove. The mounting seat is of an integrated structure, so that the number of parts can be reduced, assembling procedures are saved, the assembling difficulty of the relay is reduced, and the assembling efficiency and the assembling effect are improved.

The utility model belongs to the technical field of electrochemical inactive parts, and particularly provides a conducting bar, a battery module and a battery pack. The conducting bar comprises a main body, the main body is provided with two side parts which are oppositely arranged in the arrangement direction of positive and negative pole columns of a battery cell, the two side parts are respectively connected with a connecting part, and the two connecting parts are used for connecting the pole columns of different battery cells on the two sides of a line of battery cells. The battery module comprises at least two columns of battery cells, and in conducting bars used for connecting the battery cells in the same column, at least one conducting bar is consistent with the conducting bar in structure. The battery pack comprises the battery module. According to the utility model, the conducting bar can be connected with the poles at different sides of the center line, and at the moment, the positions of the output end positive pole and the output end negative pole can be determined firstly, so that the output end positive pole and the output end negative pole are ensured to be at the same side and have a large insulation distance.

The present invention provides an electromagnetic relay capable of ensuring a large insulation distance with a movable contact piece. The movable component is made of an electrical insulator. The movable component can slide relative to a housing along a moving direction. The movable component includes a retaining portion and a connecting portion. The retaining portion retains a first movable contact piece. The connecting portion is connected to a movable iron core. The connecting portion includes a locking groove and a locking protrusion. The end of the movable iron core is arranged in the locking groove. The locking protrusion presses the end of the movable iron core in the locking groove. The locking protrusion has a shape extending along a supporting direction.

The application discloses a high-voltage direct-current GIL / GIS eccentric bus, a standard unit of which comprises a metal shell, a current-carrying conductor, a high-voltage shielding conductor, a support insulator and a concentric insulator, the concentric insulator is installed at both ends of the metal shell, and the current-carrying conductor is arranged in the metal shell; the current-carrying conductor comprises an eccentric section and a concentric current-carrying conductor, the eccentric section is connected with the concentric current-carrying conductor at both ends, and the axis of the concentric current-carrying conductor is coaxial with the axis of the metal shell; the eccentric section comprises a plurality of eccentric current-carrying conductors, the axis of the eccentric current-carrying conductor is parallel to and located above the axis of the metal shell, the plurality of eccentric current-carrying conductors are connected into the eccentric section through the high-voltage shielding conductor, the eccentric current-carrying conductor at the end of the eccentric section is connected with one end of a concentric current-carrying conductor through a corner unit, the other end of the concentric current-carrying conductor is connected with the concentric insulator, and the high-voltage shielding conductor is connected with the metal shell through the support insulator. The application can inhibit the surface charge accumulation of the support insulator.

The invention provides a high-voltage electrode cup, a related device and a method. In the high-voltage electrode cup, a shielding electrode of an electrode cup main body is arranged at the upper part of an inner electrode; the insulating positioning ring is fixed around the outer side wall of the shielding electrode; the shielding cover is fixed on the shielding electrode, and the bottom of the shielding cover abuts against the upper part of the shielding electrode; the elastic measuring contact is fixed between the insulating ring and the shielding electrode and is connected with the inner electrode; the micro-current measuring plug passes through the shielding case and the insulating ring to be connected with the elastic measuring contact; the electrode cup main body and the outer electrode are fixed through the insulating fastening cover; the insulating fixed outer ring is in contact with the inner side wall of the outer electrode; the outer electrode and the inner electrode are concentric rings, and the electrode distance between the outer electrode and the inner electrode is a preset distance. The high-voltage electrode cup can provide an electric field type and electric field intensity similar to actual working conditions of a converter transformer, is directly used for measuring the conductivity of transformer oil under high electric field intensity, and is beneficial to miniaturization of a device adopting the high-voltage electrode cup.

The utility model discloses a high-voltage coil of a high-voltage winding, the high-voltage coil is of a layered structure, the high-voltage coil comprises a plurality of coil sections, interlayer insulating materials are padded between layers of each coil section, each coil section comprises an equal-width part and a decreasing part arranged on the periphery of the equal-width part, and the width of the decreasing part in the radial direction of the high-voltage winding is gradually reduced from inside to outside. The utility model further discloses the high-voltage winding.

A wiring terminal of a special-shaped structure for a photovoltaic box-type substation comprises an integrally-formed copper bar, one end of the copper bar is an inner-end copper bar, the inner-end copper bar is integrally connected with an outer-end copper bar through a middle copper bar, the width of the inner-end copper bar is smaller than that of the outer-end copper bar, and the inner-end copper bar and the outer-end copper bar are provided with a first hole and a second hole respectively. The middle copper bar, the inner-end copper bars and the outer-end copper bars are not in the same plane, and the planes where the inner-end copper bars and the outer-end copper bars are located are not parallel; the inner-end copper bar is connected with the molded case circuit breaker through the first hole, and after a predelivery test is completed, the outer-end copper bar is connected with an external cable through the second hole to realize power-on operation; the width of the inner-end copper bars is smaller than that of the outer-end copper bars, the usage amount of the copper bars can be obviously reduced, the middle copper bars, the inner-end copper bars and the outer-end copper bars are not in the same plane, the insulation distance between the outer-end copper bars can be increased, and potential discharge hazards are reduced.

The present invention discloses a solar photovoltaic bypass core component, including a plurality of bypass diode chips and a core component substrate, wherein the bypass diode chips are loaded on the core component substrate, and each bypass diode chip and the core component substrate are bonded by connected metal sheets to form a loop; the solar photovoltaic bypass core component also includes an external plastic package, which covers the bypass diode chip and is fixedly connected to the core component substrate; the core component substrate is designed with waterproof grooves around, which adopt a "V" shape design, and the depth is 1 / 10 of the substrate, and the width of the V-shaped opening is the same as the depth, and the waterproof grooves enhance the bonding force between the bypass diode chip and the core component substrate, and prevent external moisture or water from entering the bypass diode chip. The component increases a plug-in structure, which can be directly inserted to avoid welding, and can also adopt traditional welding, directly weld once, and avoid the cumbersome process.

The utility model discloses a kind of increase insulation distance structure relay, it is related to relay technical field, including shell;Bottom plate being installed in the bottom of shell;Relay skeleton being installed in the top of bottom plate and being located inside shell;Load current loop mechanism being installed on relay skeleton;Relay magnetic circuit structure being installed inside relay skeleton and extending to outside, the inside of shell, bottom plate and relay skeleton are provided with corresponding point glue groove, and shell, bottom plate and relay skeleton are covered by glue through point glue groove.The utility model, by glue penetration principle, make relay internal high voltage and low voltage drive structure mutually isolated, increase insulation distance, improve the creepage distance of relay, and higher safety.

The application provides an integrated connector, a printed board connector assembly and a battery pack. The integrated connector comprises a mounting shell, a jack part, at least two groups of connector inner cores, one group of the connector inner cores is a guide inner core and the rest are floating inner cores, the jack part and the guide inner core are used for being fixed to corresponding printed boards first, the guide inner core comprises a guide insulator and a built-in terminal in the guide insulator, and the floating inner core comprises a floating terminal which is integrated with the mounting shell first, and one end of the floating terminal is used for being plugged and conducted with the corresponding jack part during assembly. The printed board connector assembly comprises the integrated connector. The battery pack comprises the printed board connector assembly. The application solves the problem that the integrated connector is difficult to realize automatic assembly in the battery pack.

The utility model discloses a kind of electric core cover plate structure and buckle type electric core, it is related to buckle type electric core technical field.The electric core cover plate structure includes pole, cover plate and insulator, cover plate is provided with through-hole, pole includes cylinder, cylinder is worn in through-hole, and cover plate and pole insulating cooperation, the upper surface of cover plate is provided with mounting groove around through-hole, mounting groove is through the hole wall of through-hole, insulator is located in mounting groove.When external connection charge-discharge element or equipment, since the upper surface of cover plate is provided with mounting groove around through-hole, mounting groove is through the hole wall of through-hole, insulator is located in mounting groove, insulator can extend the insulation distance between pole and the upper surface of cover plate, to reduce the probability that pole and cover plate are communicated by conductive element and metal impurity between them and lead to external short circuit, to further reduce the probability that electric core damage even safety accident is generated thereby.

The invention discloses an insulating switchgear, comprising a fixing seat, and a switch room and a transmission room arranged on the top of the fixing seat; the switch room comprises a shell, and a switch assembly arranged on the shell, a power connection terminal and a load connection terminal; the shell adopts a fully enclosed structure, and the interior of the shell adopts dry air or nitrogen as an insulating medium to ensure the insulation performance of the switch assembly; the switch assembly is respectively provided with a power connection copper bar and a load connection copper bar on the upper and lower sides; the power connection copper bar is fixedly connected to the power connection terminal; the load connection copper bar is fixedly connected to the load connection terminal through a connecting copper rod; an apron is provided on the top of the load connection terminal; the apron is provided with a groove to facilitate the installation of the connecting copper rod; the apron on the top of the load connection terminal covers the connecting copper rod therein, which can increase the insulation distance between the connecting copper rod and the shell and the phase line, thereby improving the insulation performance; the transmission room is transmission-connected to the switch assembly.

The utility model relates to the technical field of relays, and discloses a relay with an improved framework, which comprises a base and further comprises a shell sleeved outside the base; the magnetic circuit assembly is arranged in the base; and the movable spring assembly is arranged outside the magnetic circuit assembly. According to the utility model, through the arrangement of the magnetic circuit assembly, the magnetic circuit system in the relay can be effectively assembled, through the arrangement of the movable spring assembly and the static spring assembly, the movable contact and the static contact can be effectively closed and separated, so that the relay can be normally used, and through the arrangement of the blocking assembly, the relay can be normally used. On one hand, the original insulation distance of the relay can be effectively increased, and on the other hand, an electric bridge formed in the working process of the relay can be effectively blocked, so that the relay can be effectively protected, the service life of the relay is effectively prolonged, and the safety coefficient and practicability of the relay are improved.

The utility model relates to a light coupling support technical field, especially a light coupling support for promoting light coupling insulation distance, the utility model discloses through adding the insulation enhancement subassembly on the input pin subassembly, the minimum spacing of first chip subassembly and second chip subassembly, the minimum spacing of first chip subassembly and output pin subassembly, the minimum spacing of input pin subassembly and second chip subassembly and the minimum spacing of input pin subassembly and output pin subassembly are systematically increased, break the fixed limit of traditional light coupling internal component relative position, the design expands the physical distance of key insulation path to above safety threshold under the premise of not changing chip layout and production mould, greatly improves the insulation withstand voltage strength, solves the problem of increased leakage current and signal crosstalk caused by insufficient insulation distance, significantly improves its reliability, solves the technical problem that the finished product light coupling insulation distance is short of the current light coupling support for producing light coupling.

The invention provides a knife isolation insulation support assembly and a ring main unit, and relates to the technical field of ring main units. The isolation knife insulation support assembly comprises a conductor, the upper end of the conductor is provided with an isolation knife connecting part, and the lower end of the conductor is provided with a copper rod connecting part; and the support is coated on the surface of the conductor, and the upper end and the lower end of the conductor respectively extend to the outer side of the support. The support wraps the surface of the conductor and is in close fit with the conductor, and the supporting and insulating effects on the conductor are improved. According to the utility model, the plurality of copper bar connecting holes are arranged on the copper bar connecting part at the lower end of the conductor, so that the copper bars can be conveniently installed at different positions of the disconnecting link connecting part, the plurality of copper bars and the connecting point positions of the copper bar connecting part are not overlapped, the insulation distance between the plurality of copper bars is increased, and the installation convenience, visibility and insulation performance of the copper bars are improved. The isolation knife switch connecting part is matched with the isolation knife switch, so that the isolation knife switch is supported.