33results about How to "Guaranteed grounding effect" patented technology

The present invention discloses a dual-grounding device applied to a transformer station guardrail. The device comprises a U-shaped grounding block arranged at the lower end of the guardrail, and the surface, opposite to the guardrail, of the grounding block is provided with grounding wires. The upper end of the grounding wires is fixedly connected with the grounding block through connection bolts and lock nuts, and the connection bolts pass through the guardrail and then are connected with a grounding pole arranged in the guardrail. The lower ends of the grounding pole and the grounding wires are connected with a grounding grid, the upper end of the grounding pole is provided with an upper location boss, and the upper location boss is provided with a spring pin. The middle portion o the grounding pole is provided with a lower location boss which is matched with an annular boss arranged at the lower end of the guardrail, and a jack is arranged between the upper location boss and the lower location boss. A shielding cover is arranged at the external portion, located at the grounding block, of the guardrail. The dual-grounding device applied to the transformer station guardrail employs the double grounding wires to greatly improve the grounding reliability.

The invention provides an insulating rubber composite material and its preparation method, insulating rubber gloves and its preparation method. The raw materials include butyl rubber, aluminum oxide, accelerator, naphthenic oil, microcrystalline wax, low-density polyethylene, polyethylene Glycol and polyester fiber, the composite material is prepared first, and then the composite material is used to prepare insulating rubber gloves; the composite material for preparing insulating gloves has good insulating properties and mechanical properties, and the insulating gloves prepared by it have good insulating properties and mechanical properties , fully meet the use of high-voltage maintenance; the grounding wire on the insulating gloves can lead the current into the ground when the insulating gloves are broken down by high voltage, preventing the current from flowing through the maintenance personnel and causing casualties, which greatly improves the safety factor; the grounding wire is equipped with The heavy bead can ensure the grounding effect of the grounding wire; the grounding wire is in the shape of a spiral elastic ring. When the grounding is ensured, the excess part can be compressed by itself, which not only saves space, but also facilitates storage.

The invention discloses a swing arm type diamond walking device of combining a track and a wheel. The device comprises a diamond vehicle frame, a front wheel, a rear wheel and two track moving devices positioned on the vehicle frame. The front wheel and the back wheel are positioned respectively on the front side and the rear side of the vehicle frame via a suspension bracket. The two track moving devices are positioned respectively at the left side and the right side of the vehicle frame via the suspension bracket of the track moving devices. A steering system is positioned in the front wheel and the rear wheel respectively. The invention relates to the swing arm type diamond walking device of combining a track and a wheel with simple and compact structure, low cost, being suitable for operation under various severe environments, wide application and good stability.

The invention proposes an independently packaged power amplification chip installation and fixing structure, which mainly includes: a support seat, an adjustment piece, a large flat head adjustment top wire, and a small flat head adjustment top wire; the support seat is an inverted "concave" structure, and the power amplifier The chips, adjusting pieces, adjusting jackscrews and fastening screws are all contained in the support seat after installation; Tighten alternately. The mounting and fixing structure of the present invention has strong applicability, and can be applied to installing and fixing flange-type power amplifier chips, and can also be used for installing and fixing non-flange-type power amplifier chips; for flange-type power amplifier chips, its grounding performance, heat dissipation performance and anti-corrosion performance can be improved. Shock vibration performance; for non-flange power amplifier chips, while ensuring grounding performance, heat dissipation performance, and shock and vibration resistance performance, it can reduce the difficulty of assembling the power amplifier chip and improve the maintainability of the amplifier.

The invention relates to a grounding protection device of a substation, and aims at solving the problems that the service lifetime of a grounding protection network is not up to standard and the grounding effect is poor in the prior art. The grounding protection device comprises grounding profiles which are distributed along the latitude and longitude to form a mesh grounding network; through holes are arranged in the grounding profiles to connect secondary grounding pipelines; and bumps and concave edges are arranged on the surfaces of the grounding profiles and are in smooth transition. The grounding protection device has the beneficial effects that: (1) on one hand, large contact area is ensured by the bumps and the concave edges in smooth transition and the grounding effect is good, and on the other hand, stress concentration is avoided by the relatively smooth surface to prolong the service lifetime; (2) the compactness of surrounding soil during embedding can be ensured by the design of the grounding network to reduce the corrosion rate; and (3) the grounding effect is ensured through bipolar grounding and the grounding protection device still has a relatively secure grounding effect after being corroded by the soil for a long period of time.

The invention discloses a grounding package structure of a heat dissipation cover and a process thereof. It is installed on the base plate, and the top side of the packaging board is equipped with a pressurizing assembly. By setting the pressurizing assembly and the contact assembly, and rotating the extrusion screw, the piston can be pushed, and the gas in the cylinder can be introduced into the extrusion airbag. Inside, the airbag is squeezed to expand, which can push the conductive plate. With the cooperation of the expansion spring, the conductive ball can be guaranteed to be in contact with the ground pad. Similarly, the conductive ball of the pressurizing component under the heat dissipation plate is in contact with the heat dissipation plate, which can be more Good electrical conductivity can ensure the grounding effect. During the installation process, due to the pressure on the airbag, the expansion spring can be guaranteed to be in a compressed state. Stable, and the stability of electrical conductivity is better.

The present invention provides an electrical connector, which includes a terminal module and a shielding shell sleeved outside the terminal module. The terminal module includes an insulating body and two rows of conductive terminals held in the insulating body. and the metal sheet clamped between the upper and lower rows of conductive terminals, the insulating body further includes a first insulating body, and the upper and lower rows of conductive terminals include grounding terminals on the outside and power terminals on the inside of the grounding terminals, The metal sheet has a first shielding sheet clamped between the ground terminals of the upper and lower rows of conductive terminals and a second shielding sheet clamped between the power terminals of the upper and lower rows of conductive terminals. An insulating body is injection-molded outside the upper and lower rows of conductive terminals and the metal sheet, and corresponding to the position between the first shielding sheet and the second shielding sheet, a cutout of the first shielding sheet and the second shielding sheet is formed. Cut the separate cutouts.

The application provides a marine polar electrode and marine grounding equipment, which can directly place the marine grounding electrode on the surface of the seabed without complicated operations such as drilling, and the construction is simpler and more efficient. Moreover, the grounding electrode has a circular and equal-thick grounding plate, which can better fit the seabed to ensure the grounding effect. At the same time, the marine grounding equipment can effectively improve the sealing effect through the structural characteristics and connection coordination of the sealed cabin, connecting device and submarine cable connection components, thereby ensuring the effectiveness of the electrical connection of the marine grounding electrode.

The present invention relates to the technical field of phased array antennas, in particular to a Ka-band horizontal end-fire antenna architecture, which includes a mounting substrate, and TR modules are connected to both sides of the mounting substrate, and several antennas are attached to the upper edge of the mounting substrate The antenna board is provided with a pressure plate, and the antenna board and the TR module are connected and communicated through several radio frequency connectors; the antenna board and the TR module are connected to the installation substrate through detachable fasteners. The structure of the present invention is simple, easy to implement, can reduce the thickness of the antenna structure and the height of the connection, and improve the overall integration of the antenna structure; connect the antenna board and the TR module through the radio frequency connector and connect the two grounds, ensuring The grounding of the antenna structure ensures the overall performance of the antenna structure.

The invention relates to a lightning protection electric connector assembly, a lightning protection electric connector and a metal cable clamp. The lightning protection electric connector comprises a connector housing and a metal cable clamp arranged on the connector housing; the connector housing is also provided with a contact member having the front end as a splicing end; the metal cable clamp comprises a cable clamp body in connection with a cable lightning protection shielding layer; the front end of the cable clamp body is provided with a grounding spring connecting structure; the grounding spring connecting structure is provided with a grounding spring which comprises a grounding spring splicing end inserting in the splicing end of an adapter connector; the splicing end of the grounding spring is provided with at least one elastic sheet which can be elastically deformed perpendicularly to a front and back direction so as to contact with the splicing end of the adapter connector for elastic top pressure cooperation. According to the invention, the problem of unreliable conduction between the housings of two lightning protection electric connectors caused by metal nut conduction in the prior art is solved.

The invention discloses a welding-type high-performance electromagnetic shielding chamber construction technology, and belongs to the technical field of electromagnetic shielding. The construction technology comprises the steps that 1, an insulating layer is installed; 2, supporting keels of a shielding chamber are installed; 3, shielding plates are installed; 4, a shielding door and a shielding window are installed respectively; 5, shielding installation is conducted on a power circuit penetrating through a wall; 6, shielding installation is conducted on weak-current parts; 7, shielding installation is conducted on water pipes penetrating through plates; 8, a ventilating waveguide window which is of a hexagonal honeycomb structure is installed inside a wind pipe of the shielding chamber; 9, shielding leakage detection and test are conducted; 10, coating of interior decorations is conducted. By means of the welding-type high-performance electromagnetic shielding chamber construction technology, the construction technical problem that the welding sealing property of a shielding shell is difficult to guarantee and the construction technical problems of shielding of window and door gaps, wall-penetrating electromagnetic shielding of pipelines of water, electricity and wind and system grounding are well solved, a guarantee is provided for information safety, a good technical support is provided for development of the electromagnetic shielding industry and the electronic information industry, and enormous social benefit is brought.

The invention discloses an earthing terminal, an earthing structure and electronic equipment. The earthing terminal is characterized in that the shell of metal equipment is earthed, the earthing terminal is detachably installed on the outer side of the shell of the metal equipment, at least one part of the earthing terminal is electrically connected with the shell of metal equipment, and the earthing terminal is made of a metal material with strong anti-corrosion property. Through the above mode, the electronic equipment disclosed by the invention has the advantages of convenience and simpleness in the earthing operation and strong anti-corrosion property.