33results about How to "Improve grounding reliability" patented technology

The invention belongs to the field of monitoring of an electronic device transformer sleeve pipe, in particular relates to a sleeve pipe end screen leading-out device of a dry type transformer. The sleeve pipe end screen leading-out device comprises an end screen connection plug, a grounding press spring, a tap installation seat and a tap grounding protection cap, wherein the tap grounding protection cap, the tap installation seat and a sleeve installation flange are sequentially connected, the end screen connection plug is arranged in a cavity jointly formed by the tap grounding protection cap, the tap installation seat and the sleeve pipe installation flange, the grounding press spring sleeves the end screen connection plug, one end of the grounding press spring is in contact with the end surface of an installation step of the end screen connection plug, and the other end of the grounding press spring is in contact with a reducing end surface of the tap installation seat. By the sleeve pipe end screen leading-out device, the technical defect brought by manual welding and an elastic sheet type leading-out device is avoided, an end screen is enabled to be reliably grounded, and the application safety of a product is improved.

Embodiments of the invention disclose a flexible circuit board and an electronic apparatus. The flexible circuit board comprises a flexible circuit board body, a board-to-board connector BTB and at least one copper-exposing region, wherein the at least one copper-exposing region comprises at least one grounding through hole; and the flexible circuit board body is grounded through the at least onegrounding through hole. The technical scheme provided by the invention has the advantages of interference resistance and improvement of user experience.

The invention is suitable for the technical field of communication equipment, and provides a telephone receiver component and mobile terminal equipment. The telephone receiver component comprises a plastic component, a metal upper cover embedded in the plastic component, conductive double-sided adhesive, a telephone receiver decorating part, and sealing foam; a first laser-etching area is arrangedon the surface of the metal upper cover exposed to the plastic component; a second laser etching area is arranged on the surface of the metal telephone receiver decorating part closes to one side ofthe conductive double-sided adhesive, and two opposite laterals of the conductive double-sided adhesive are respectively adhered with the first laser etching area and the second laser etching area. Byadopting the conductive double-sided adhesive and correspondingly arranging the first laser etching area and the second laser etching area, the contact area of the metal telephone decorating part andthe metal upper cover is increased, and the grounding area of the metal telephone receiver decorating part can be greatly increased, and then the grounding reliability of the metal telephone receiverdecorating part is greatly enhanced, and the electrostatic damage risk of the metal telephone receiver decorating part is reduced.

The invention discloses a sealing assembly of an oil-filled cable terminal, comprising: a metal tube; a first elastic sealing member molded on the outer peripheral surface of the metal tube, and used to realize the axial direction of the oil-filled cable terminal; sealing; and a second elastic seal molded on the end of said metal tube for achieving radial sealing of said oil-filled cable termination. In the present invention, the first elastic sealing member and the second elastic sealing member of the sealing assembly can realize axial sealing and radial sealing of the oil-filled cable terminal respectively, thereby improving the sealing performance of the oil-filled cable terminal. In addition, the metal tube of the sealing assembly has good electrical conductivity, which improves the grounding performance of the cable.

The invention discloses a grounding wire protection device. The grounding wire protection device is composed of a sheath, a conductive ring, a sealing ring and a moisture-proof filler. A release pipe is arranged in the center of the sheath, and its outer wall is uniformly arranged in an annular ring perpendicular to the axial direction of the release pipe. It is raised and integrally formed with the sheath. There are at least two sealing rings with wire holes in the middle, which are evenly distributed inside the sheath from the top of the sheath, and between the two sealing rings and between the sealing ring and the inner wall of the sheath. Set moisture-proof filler, at least 3 conductive rings, which are evenly distributed inside the pay-off pipe. The conductive rings are provided with wiring holes, and a conductive paste layer is provided in the wiring holes. Compared with the traditional grounding wire, the invention improves the corrosion resistance of the grounding wire while improving the conductivity with the earth, effectively prolongs the effective service life of the grounding wire, reduces the number of inspections, and provides great convenience. The grounding wire detection and replacement operation improves the grounding reliability of electrical equipment, reduces the labor intensity of grounding wire detection, maintenance and replacement, and improves the efficiency of line protection operations.

The invention belongs to the technical field of lightning protection and grounding for computer rooms, and in particular relates to a matrix type lightning protection and grounding system for a computer room on an urban rail cloud platform and an access method thereof. The matrix grounding body network, the invention solves the problems of the prior art that the grounding effect is worse and the grounding is unstable due to inconsistent grounding points and complicated process, and has the advantages of ensuring the overall reliability of the grounding, avoiding the impact of the structure on the grounding effect, and simplifying the And the beneficial technical effect of improving the stability of the system.

The invention provides a control method for a grounding resistor of a rail vehicle and a grounding plate. The grounding resistor is controlled within a reasonable range so that the reliability in grounding is improved so as to enhance the safety in running. The control method comprises the following steps of (1) dividing the grounding resistor into three sub resistors which are connected with each other in series; (2) distributing resistance ranges of the sub resistors; and (3) controlling the sub resistors to control the resistances of the sub resistors within their own corresponding resistance ranges. According to the control method for the grounding resistor of the rail vehicle, the grounding resistor is divided into the three sub resistors, and then the resistance ranges of the sub resistors are distributed and the sub resistors are further respectively controlled according to the resistance range so as to control the sub resistors within their own resistance ranges; therefore, the grounding of a vehicle body is controllable and the reliability in grounding is improved so that the stability and safety in running are enhanced. According to the grounding plate provided by the invention, the grounding resistor is controlled by using the control method.

The invention discloses a hood type power distribution terminal electrical assembly grounding device. The hood type power distribution terminal electrical assembly grounding device mainly comprises a cover plate, and a support and a grounding terminal which are installed on the cover plate. The hood type power distribution terminal electrical assembly grounding device is characterized in that a plurality of installation holes connected with an external member and with metal pieces embedded in are formed in the cover plate, a grounding piece is arranged on the inner side of the cover plate, the grounding piece is connected with a metal piece and a support through connection pieces, and the grounding terminal is connected with the grounding piece. The hood type power distribution terminal electrical assembly grounding device not only can simplify an assembly mode, but also greatly improves ground connection reliability of a power distribution terminal.