11results about How to "Reliable grounding" patented technology

A ground structure of a USB board end connector and the board end connector, wherein the ground structure comprises a shielding shell of the USB board end connector and a ground terminal arranged on the shielding shell, a lug directly extended from the shielding shell is arranged on the rear side of the shielding shell, the lug comprises an extension section and an inward bending section, one end of the extension section is connected with the shielding shell, the other end of the extension section is connected with one end of the inward bending section through a first circular arc section; a terminal lug extending outward is arranged on one side of the ground terminal, the lower part of the terminal lug is cut off, and the cut-off part is bent backward to form a stop lug; the inward bending section abuts against the terminal lug and is tightly contacted with the stop lug. The application has the advantage that the ground of the ground terminal is very reliable.

The utility model discloses a repeater with a waterproof and dustproof structure, which comprises a power supply part and a control part which are connected in a covering manner. The control part cover plate is provided with a first open slot with a step, a sealing ring is embedded in the first open slot, and a main control unit, and a signal acquisition unit, a duplexer module and the like electrically connected with the main control unit are arranged in the slot; a power supply part box body is provided with a connecting hole and a screw hole, and a cover plate is connected with the box body through a hinge and is locked by a screw to be matched with a sealing ring to realize sealing. The box body is provided with a lattice flange joint, a conversion terminal strip, a power supply module, a control module, an anti-surge module and other components. The main control unit is an ARM chip main control unit and comprises a WIFI module, and the box body and the cover plate are made of metal explosion-proof materials. Through unique structural design, the repeater realizes waterproof, dustproof and explosion-proof functions, can effectively acquire and process signals and convert a stable power supply, has the capabilities of data processing display, wireless communication and surge protection, is convenient to maintain and overhaul, and is suitable for various complex environments.

The invention discloses an electrical test bracket for a drop-out fuse, relates to an auxiliary device for an insulation test of a circuit breaker, and aims to solve the problems of non-standard support, poor safety and low test efficiency of the conventional support device. According to the invention, two insulating pillars are vertically arranged on a metal chassis side by side; the number of the insulation clamping supports is two, the insulation clamping supports are correspondingly arranged at the top end of the insulation supporting column, each insulation clamping support is provided with a groove, and the two grooves are used for being matched with the connecting portions of the two ends of the drop-out fuse so that the drop-out fuse can be kept in a horizontal state. When the drop-out fuse is placed in the groove, the distance between the grounding end of the fuse and the ground is not less than 120cm. The beneficial effect is that the safety and the insulation reliability of the test process are significantly improved.

The utility model belongs to the technical field of voltage mutual inductance, and particularly relates to a voltage mutual inductance device with a cable plug type independent power supply. A voltage transformer for a power supply comprises an independent voltage iron core and an independent power supply primary coil wound on the independent voltage iron core; a phase iron core, a B phase iron core, a C phase iron core, and an A phase primary coil, a B phase primary coil and a C phase primary coil respectively wound on the A phase iron core, the B phase iron core and the C phase iron core are physically separated, the five transformers form a 5PT integrated structure through epoxy resin, and ferromagnetic resonance is effectively inhibited by combining iron core material optimization and anti-resonance design. Compact design is achieved, and narrow spaces such as a ring main unit are adapted. And the safety is improved. Magnetic field interference is avoided and metering precision is ensured.

The utility model provides a kind of shielding connector, the shielding connector includes connector body, shielding ring and sleeve component, wherein, load part for carrying cable shield net in cable is equipped on connector body;Shielding ring is sleeved on the connector body, and is configured to the radial pre-fixing of the cable shield net is carried out;Sleeve component is rotatably connected with the connector body, and in the rotation process, the shielding ring is compressed in axial direction, so that the cable shield net is fixed on the load part and is conducted with the connector body.The connector has strong self-adaptive ability, the pre-fixing in installation process, reliable shielding state, can solve the problems in cable shielding and shell conduction of field wiring connector in prior art, such as limited shielding wire specification, shielding layer is easily damaged in installation process, cost control is difficult and shielding state is unreliable.

The utility model discloses a cable grounding device, apply to wiring device technical field, including the shielding ring of inside having inner annular groove, the contact finger spring of being sleeved in the inner annular groove, after the shielding layer of cable is turned over and enters the shielding ring, the inside of contact finger spring is contacted with the shielding layer and the shielding layer partial shielding silk is embedded in the contact finger spring, the outside of contact finger spring is extruded contact with the inner annular groove, still include the metal shell of with shielding ring outer wall passes through O type ring connection, the sealing ring, the clamping claw and the galling nut of being connected in proper order in the front end of metal shell, and with the connecting nut assembly of metal shell rear end connection. This cable grounding device can fix the shielding layer of cable, and the production assembly is convenient, and shielding connection is stable and reliable.

The utility model discloses a U-shaped multi-stage grounding ESD (Electro-Static Discharge) anti-static wrist strap connector, which comprises an ESD equipment host (1), the ESD equipment host (1) is provided with at least one plug-in ESD wrist strap connecting wire (7), and the ESD wrist strap connecting wire (7) is provided with a U-shaped connector (2); the ESD equipment host (1) is provided with a U-shaped notch (3), and the U-shaped connector is arranged in the U-shaped notch (3). The connector provided by the utility model adopts an embedded design, and the U-shaped connector is embedded into the U-shaped notch of the ESD equipment host, so that not only is the aesthetic property of the equipment improved, but also the grounding reliability and the use safety are remarkably improved through a multi-stage grounding design and an anti-falling structure.

A portable short-circuit grounding wire special-purpose wire clamp for busbar grounding comprises a column, the cross section of the upper portion of the column is square, the lower portion of the column is in a screw shape, and the small diameter of the lower portion is larger than the diagonal length of the cross section of the upper portion of the column. The upper end of the stand column is provided with a rectangular jack, an upper clamping plate fixedly penetrates through the jack, the upper clamping plate is L-shaped and is perpendicular to the stand column, and the upper clamping plate and the stand column form a clamping groove which is used for being clamped on a busbar; a lower clamping plate sleeves the upper part of the stand column in a sliding clearance fit manner, is parallel to the upper clamping plate and is used for being clamped below the busbar; two wiring screw holes are formed in the other end, corresponding to the clamping groove, of the lower clamping plate; the lower portion of the stand column is connected with a nut steel sleeve through threads, the lower end of the nut steel sleeve is coaxially connected with an insulating rod, and the upper end of the nut steel sleeve abuts against the bottom face of the lower clamping plate and is used for pushing the lower clamping plate to move upwards to clamp the busbar. The busbar grounding device has the advantages of being compact in structure, firm in installation, not prone to falling off and capable of ensuring reliable grounding of the busbar and guaranteeing operation safety.

This utility model discloses a quick-disassembly and grounding device for mobile steam injection boilers in oil fields, including a grounding wire and a grounding mechanism. The grounding wire connects the boiler body to the grounding mechanism, and the grounding mechanism includes a grounding rod with a repeatedly switchable anchoring mechanism inside. The repeatedly switchable anchoring mechanism in this utility model enables reliable grounding of the equipment and allows for quick disassembly and assembly, facilitating the movement and transport of mobile steam injection boilers in oil fields.

This utility model relates to the field of plug technology and discloses a double-break switch plug, including a housing. The upper surface of the housing is equipped with a power-off button, a power-on button, and an indicator light. Both the power-off button and the power-on button can be pressed down and reset upwards. The lower surface of the housing is equipped with a PE pin arranged in a triangular pattern and two power-on pins. The power-off button, power-on button, indicator light, PE pin, and power-on pins are all connected to the wiring assembly inside the housing. This utility model achieves safe start-stop control. Pressing down the power-on button drives the slider to rise, causing the conductive spring to contact the power-on terminal and energize it. Pressing down the power-off button causes its lower wedge-shaped block to push the locking piece to release the power-on button. The power-on button resets under the action of a third spring, de-energizing it. This double-button mechanism avoids accidental operation, ensuring that power is only connected under clear instructions, improving safety. The operation process is also clear and easy for users to quickly master.

The utility model discloses a heavy load latent AGV of self -adaptation ground relates to heavy load AGV technical field, including AGV chassis, AGV chassis side fixedly be provided with the lamp area, through swing bridge type suspension release whole bridge rotation degree of freedom, four wheel layout is equivalent to 'three point one face' structure, ensure that all wheel train reliable ground connection on uneven ground, avoid wheel train from the root source to hang in the air, simplify suspension structure and improve complex ground traffic stability significantly, simultaneously, adopt the linkage of many filiform rods and lift the platform, by precision transmission mechanism drive high accuracy ball screw lifter of servo motor, combine closed loop control, realized very high lifting positioning accuracy and repeat stability, satisfy the demand of precision operation, response speed is fast, no hydraulic lag, combine diagonal laser obstacle avoidance radar, four around anticollision strip, emergency stop button, lamp area and multilevel safety protection of voice loudspeaker, realized 360 degree dead angleless safety guarantee, ensure the operation reliability under the emergency situation.