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

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 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 coaxial connector socket, and solves the sealing problem of a conventional micro-strip connector. The coaxial connector socket comprises an outer conductor, an inner conductor, a first insulation part, and a second insulation part, which is made of glass and is arranged between the inner conductor and the outer conductor. One end of the second insulation part is arrangedin the coaxial connector socket, and the other end is aligned with the edge of the outer conductor. The inner conductor comprises two parts. The welded part is made of a Kovar alloy material, one endof the welded part is arranged in the coaxial connector socket, and the other end extends to the exterior of the edge of the outer conductor. The insertion part is made of a beryllium bronze material;one end is used to connect a pin connector, and the other end matches with the welded part. The outer conductor also comprises a contact angle that is abutted on a printed board.

The invention provides a lining, a reaction chamber and semiconductor processing equipment, which are used to protect the side wall and the bottom chamber wall of the reaction chamber from being etched by plasma, and the bottom chamber wall is grounded. The lining includes a lining body, a ring-shaped constraining layer and a ring-shaped grounding layer, wherein the ring-shaped constraining layer is arranged around the inner side wall of the lining body, and is lower than and close to the processing position of the workpiece to be processed, so as to The plasma is confined on the plane where the process position is located; the annular grounding layer is arranged around the inner side wall of the liner body and is located at the lower end of the inner side wall, and the lower surface of the annular grounding layer is in contact with the upper surface of the bottom chamber wall Combined to achieve electrical conduction and heat transfer between the two. The inner lining provided by the invention can not only avoid the waste of plasma energy, but also ensure the grounding performance and heat conduction performance of the inner lining, thereby ensuring the process result.

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 relates to a cable comprehensive intelligent grounding box. The cable comprehensive intelligent grounding box comprises a box body, wherein the box body is divided into a first placementcavity and a second placement cavity, an online monitoring assembly is arranged on a vertical partition plate, and a host is arranged inside the second placement cavity. The cable comprehensive intelligent grounding box has the advantages that the online monitoring assembly inside the box body monitors a power cable in real time, and monitoring data of the online monitoring assembly is transmitted to a monitoring PC through a communication module by the host so that a manager can obtain the operation state of the power cable in real time, and the normal, stable and safe operation of the powercable is ensured, and when the data monitored by the online monitoring assembly does not accord with data set by a processor, the processor can send position positioning information and alarm information to the monitoring PC through a positioning module and an alarm, so that it is ensured that a maintainer can maintain the power cable in time, and faults of the power cable can be avoided in time.

The invention discloses a package structure with an electromagnetic shielding function and a manufacturing method thereof. The package structure includes a flexible substrate layer (10), a chip (30),a metal fence (50), a molding component cladding layer (60) and an electromagnetic shielding layer (80), wherein the chip (30) is inverted on a part of an upper metal pad (131) on the upper surface ofthe flexible substrate layer (10); the metal fence (50) is arranged on another part of the upper metal pad (131) around the chip (30); the electromagnetic shielding layer (80) is buckled in a cap shape above the flexible substrate layer (10); the cap crown of the electromagnetic shielding layer (80) accommodates the chip (30), and the cap brim of the electromagnetic shielding layer (80) is connected with the metal fence (50); the electromagnetic shielding layer (80), the metal fence (50) and a plurality of metal circuit layers in the flexible substrate layer (10) are combined to make the chipto be placed in a metal enclosed space. According to the invention, grounding and shielding effects can be effectively improved, the process can be simplified, and the production efficiency and product yield can be effectively improved.

The invention provides an installation fixing structure of an independent packaging type radio-frequency power amplifier chip, mainly comprising a supporting seat, an adjusting piece, a large flat-head adjusting jackscrew and small flat-head adjusting jackscrews. The supporting seat is inverted-U-shaped, and a power amplifier chip, the adjusting piece, the adjusting jackscrews and fastening screwsare contained in the supporting seat after installation. The adjusting piece is clamped between an adjusting seat and the chip through a limiting table. The large and small flat-head adjusting jackscrews are combined in use, and are alternately tightened during installation. The installation fixing structure of the invention has strong applicability, and can be applied to the installation fixingof both a flange-type power amplifier chip and a non-flange-type power amplifier chip. For a flange-type power amplifier chip, the grounding performance, the heat dissipation performance and the anti-shock and vibration performance can be improved. For a non-flange-type power amplifier chip, the assembly difficulty of the power amplifier chip can be reduced and the maintainability of the amplifiercan be improved while the grounding performance, the heat dissipation performance and the anti-shock and vibration performance are ensured.

The invention provides a deep well grounding device for a high soil resistivity area, which comprises a foundation, a deep well body, a well bottom, a lifting motor, a worm gear reducer, a rotating shaft, a winding wheel and a lifting rope, and is characterized in that the deep well body is arranged in the foundation; a well bottom is arranged at the bottom of the deep well body; the lifting motor is in bolted connection with the lower end of the worm gear reducer; and an output shaft coupling of the worm gear reducer is connected with the right end of the rotating shaft. Through the arrangement of the outer pile casing, the mounting pipe, the vertical seat, the rainproof guide plate, the connecting seat and the telescopic adjusting rod, the problem of soil loss in rainy days can be avoided, well mouth soil of the deep well body can be protected through the outer pile casing and the mounting pipe, soil loss is avoided, and the action position of the telescopic adjusting rod in the connecting seat is adjusted in a telescopic mode. The rainproof guide plate can move in the interior between the vertical seats, and after the protection angle is determined, rainproof and flow guiding work can be carried out, so that the protection effect is guaranteed.

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 relates to a printed circuit board and a packaging structure thereof. The packaging structure of the printed circuit board comprises a circuit board body and a via hole bonding pad provided with a connecting through hole, the circuit board body is provided with a mounting through hole, the via hole bonding pad is arranged in the mounting through hole, the via hole bonding pad is also provided with force unloading holes used for dispersing extrusion force, and the force unloading holes and the connecting through holes are arranged at intervals. When packaging is carried out, the via hole bonding pad is installed in the installation through hole of the circuit board body, and then the connecting piece is tightly matched with the connecting through hole, so that packaging of the printed circuit board is realized. In the fastening matching process of the connecting piece and the connecting through hole, along with the increase of the load, the extrusion force can be dispersed by utilizing the force unloading hole, so that the damage to electroless plating copper can be avoided, the problem of open circuit or conductivity reduction can be avoided, and meanwhile, the grounding effect can be ensured.

The invention discloses a connector provided with a partition plate elastic arm, which comprises a molded part, an upper row of terminals, a lower row of terminals and a metal middle partition plate, and is characterized in that at least one part of the metal middle partition plate is wrapped by the molded part; the metal middle partition plate comprises an elastic arm, and the elastic arm penetrates out of the vertical wall of the molded part and obliquely extends. And when the wire end connector is plugged with the board end connector, the shell of the wire end connector compresses the elastic arm and forms grounding communication with the elastic arm and the metal middle partition plate in the board end connector. When the line end connector and the board end connector are plugged and then are affected by the outside to cause loose fit tolerance, due to the elasticity of the elastic arm, the shell of the line end connector can still form stable connection with the metal middle partition plate. And the shell of the other connector is communicated through the elastic arm to construct another grounding loop, so that the grounding effect is better.

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.

An electrical connector is used for a pair of abutting components to plug backwards and is characterized by comprising an insulation body, at least one upper grounding terminal, at least one lower grounding terminal and a shielding sheet, wherein the at least one upper grounding terminal and the at least one lower grounding terminal are vertically and oppositely arranged on the insulation body, the shielding sheet is arranged between the upper grounding terminal and the lower grounding terminal and is provided with at least one elastic arm, the at least one elastic arm is bent and extends, theelastic arm is provided with a first contact part, a second contact part and a third contact part which sequentially extend, the first contact part is in contact with the upper grounding terminal, the second contact part is in contact with the lower grounding terminal, the third contact part is in contact with the same upper grounding terminal, a first connection part is connected with the firstcontact part and the second contact part, a second connection part is connected with the second contact part and the third contact part to improve elasticity of the elastic arm of the shielding sheet,the contact forces among the elastic arm, the upper grounding terminal and the lower grounding terminal are increased, so that a stable grounding effect is achieved, and the material used for manufacturing the shielding sheet is saved.

The invention provides a preparation method of a radio frequency tube shell, a power amplifier module packaging method and a power amplifier module. The preparation method of the radio frequency tube shell comprises the following steps: preparing a via hole penetrating through the upper surface and the lower surface of a dielectric substrate in the dielectric substrate; after metal seed layers are sputtered on the via holes and the upper and lower surfaces of the dielectric substrate, a front metal pattern and a back metal pattern are prepared on the upper and lower surfaces of the dielectric substrate respectively; local thickening is carried out on the front metal pattern and the back metal pattern respectively, and a front metal enclosure frame and a bottom heat sink are prepared; and selecting an area from the metal enclosure frame as a chip mounting area, and removing the part of the dielectric substrate in the chip mounting area to prepare the radio frequency tube shell. According to the radio frequency tube shell prepared by the method, the electroplated pure copper is used as the bottom plate of the tube shell, the chip is mounted on one surface, and the other surface is directly used as the external mounting surface of the tube shell, so that heat dissipation and grounding effects are ensured, and meanwhile, the radio frequency tube shell can be led out nearby so as to ensure good high-frequency characteristics.

The invention discloses a dish washing machine which comprises a shell which has conductivity and is connected with a ground wire; the base is arranged in the shell; the power panel is mounted in the base and used for supplying power to the dish washing machine; the grounding structure is used for conducting the power panel and the shell to realize grounding of the power panel; the grounding structure comprises an elastic grounding piece, one end of the elastic grounding piece is conductively connected with the power panel, and the other end of the elastic grounding piece abuts against the shell. According to the dishwasher, the elastic grounding piece of the grounding structure abuts against the shell, fastening connection of the grounding structure and the shell can be achieved, the electric connection effect of the elastic grounding piece and the shell can be improved, the power panel is grounded through the grounding wire connected with the shell, then the grounding effect of the power panel is guaranteed, and the safety performance of the dishwasher is improved.

The invention provides a convenient-to-operate grounding device of electromagnetic compatibility circuit. The device comprises a mounting frame, an anti-skid pad, a mounting bases, mounting holes, a supporting frame, a vertical supporting seat, a transverse frame, a cooling fan, an internal thread mounting hole, a conductive column and a grounding wire, wherein the left surface of the mounting frame is glued with the anti-skid pad; the upper end and the lower end of the mounting frame are connected with the mounting bases through bolts, and the mounting holes are formed in the mounting bases; and one end of the supporting frame is in bolted connection with the right lower side of the mounting frame. Through the arrangement of a mounting table body, a fixed lining seat, an internal threaded hole, an adjusting screw rod, a movable clamping seat and an adjusting cap, electromagnetic compatibility circuit equipment can be conveniently mounted and fixed, and operation is convenient; and the electromagnetic compatibility circuit equipment is arranged on the upper part of the mounting table body, and the adjusting screw rod is directly adjusted to rotate in the internal threaded hole in the fixed lining seat by holding the adjusting cap, so the movable clamping seat is propped against the electromagnetic compatibility circuit equipment, and the electromagnetic compatibility circuit equipment is convenient to install, fix and operate.

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 a doubling method and a doubling structure, and belongs to the technical field of cables, and the doubling method comprises the steps: forming an insulating medium outside each core wire; forming an outer conductor wrapping the insulating medium outside each insulating medium, and obtaining a plurality of first structures; arranging the multiple first structures side by side, and enabling that the axes of the multiple first structures are parallel to one another; interweaving and wind conducting wires outside the two adjacent first structures, so that the outer conductors of the two adjacent first structures are electrically connected through the conducting wires, and a second structure is obtained; and forming a sheath layer outside the second structure, and obtaining a doubling structure. According to the doubling method and the doubling structure, the doubling workload can be reduced, time and labor are saved, high efficiency and low reject ratio are achieved, and the consistency of the grounding effect and the grounding quality of the doubling structure obtained after doubling is guaranteed.

The invention relates to a video lightning protector, comprising a shell. The shell is provided with an input end, an output end and a ground wire. The input end is connected with an external line. The output end is connected to protected equipment. The input end is fixedly connected to the shell. The output end is movably connected to the shell. The shell is provided with an adjusting assembly for adjusting movement of the output end. The adjusting assembly enables a horizontal axis of the output end to be coaxial or non-coaxial with a horizontal axis of the input end. The shell is provided with a control assembly used for controlling the tap-off length of the ground wire. The video lightning protector is advantaged in that the adjusting assembly adjusts movement of the output end on the shell, enables the horizontal axis of the output end to be coaxial or non-coaxial with the horizontal axis of the input end, and enables the output end to adapt to different installation places, so that the working strength of the conventional installation is reduced, the practical performance is good, and the adjustment is convenient; and the control assembly controls the tap-off length of the ground wire, so that the damage of the ground wire is reduced, the grounding effect is ensured, the connection is reliable, the usage effect is good, and the structure is simple.

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.

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.