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56results about How to "Increase electrical contact area" patented technology

Scaly zinc-based inorganic zinc silicate heavy anti-corrosion coating and preparation method thereof

The invention relates to scaly zinc-based inorganic zinc silicate heavy anti-corrosion coating and a preparation method thereof. The method comprises the following steps of: (1) mixing scaly zinc powder with initial film forming resin according to the weight ratio of components to obtain a component A; (2) mixing a hydrolyzing silicon solution with a modifier by stirring at intermediate speed according to the weight ratio of the components, adding a catalyst for hydrolyzing according to the weight ratio of the components and hydrolyzing to obtain a component B; and (3) mixing the component A and the component B which are prepared in the step (1) and the step (2) according to the component weight ratio of (1-1.5):1 to obtain the scaly zinc-based inorganic zinc silicate heavy anti-corrosion coating. The invention has the advantage of preparing the scaly zinc-based inorganic zinc silicate heavy anti-corrosion coating by mainly adopting domestic scaly zinc powder. Compared with traditional zinc rich primer, the invention can greatly reduce the zinc powder content and coating thickness; the traditional zinc rich primer generates large zinc fog in the coating welding process, and the scaly zinc powder primer generates less zinc fog, reduces damage to construction staffs and is a new generation product of the traditional inorganic and organic zinc rich primer.
Owner:湖北中科博策新材料研究院

Superconducting magnet joint and manufacturing method thereof

The invention discloses a superconducting magnet joint which comprises a joint holder and a copper sleeve connected to the joint holder, wherein a superconducting line passes through the joint holder and the copper sleeve and is welded into a superconducting joint, and a soldering flux is embedded between the copper sleeve and the superconducting joint. According to the invention, the outer layer of the superconducting line is plated with a lead-bismuth conductor and formed into the superconducting joint, and the welding length of the superconducting joint is not less than 75 mm, thereby ensuring that two superconducting line terminals connected with the superconducting joint have electric contact areas large enough so that the resistance of the joint can be effectively reduced. A wood alloy achieves complementing and strengthening effects, and the superconducting joint is fixed by using a high-conductivity oxygen-free copper sleeve, so that the resistance is further reduced. The superconducting joint is completed after heat treatment, so that the insulation damages of the superconducting joint in the process of heat treatment can be effectively avoided, and a greater degree of freedom is provided for the production and maintenance of the superconducting joint; and the superconducting joint is simple in production method and easy to operate.
Owner:西安聚能医工科技有限公司

Preparation method of zinc oxide silicon-coated anode material

The invention relates to the technical field of lithium ion battery anode materials, especially to a preparation method of a zinc oxide silicon-coated anode material. The method comprises the following steps of in order: 1) performing ball milling processing of conductive agent graphene, a binder and silicon nanoparticles, adding deionized water, and uniformly stirring the mixture to obtain slurry; 2) coating the slurry to the surface of a current collector and then performing drying; 3) performing zinc powder activation and then performing melting processing to obtain a zinc in a molten state; and 4) after the graphene and silicon nano-particle coating porous aluminum foil negative electrode materials are uniformly coated with the zinc in the molten state, performing calcination process to obtain the zinc oxide silicon-coated anode material. The preparation process is simple and practicable, simple to operate and low in required cost, and the prepared and obtained zinc oxide silicon-coated anode material can effectively avoid the problem that the expansion and contraction of silicon in the charge-discharge reaction process, can inhibit the secondary reaction of the anode materials, can improve the stability of electrode cycle and the cycle efficiency and can have a high electrical conductivity.
Owner:赵金保 +2

Novel rapid Christmas tree installation connector

The invention provides a novel rapid Christmas tree installation connector which comprises a connecting male head and a connecting female head connected with the connecting male head in a pluggable mode. The connecting male head and the connecting female head comprise a male head shell and a female head shell respectively, wherein the male head shell is detachably connected with the female head shell. The male head shell and the female head shell are respectively provided with a through hole. Clamping spring pins are arranged inside the through holes. The connecting male head and the connecting female head are fixed to an inner cavity of a Christmas tree rod through the clamping spring pins. According to the novel rapid Christmas tree installation connector, the detachable male head shell and female head shell replace a shell formed by solid core injection molding, and rapid disassembly and rapid maintenance can be carried out when quality problems appear. The pluggable end of the connecting male head extends outwards to be provided with an electric connecting plug rod, and an electric connecting plug hole corresponding to the electric connecting plug rod is formed in the connecting female head; when the connecting male head and the connecting female head are correspondingly combined and connected in the pluggable mode, the electric connecting plug rod is plugged into the electric connecting plug hole and electrically connected with the electric connecting plug hole, the electric contact area between the electric connecting plug rod and the electric connecting plug hole is larger, and the novel rapid Christmas tree installation connector is applicable to DC and AC at the same time and high in use universality.
Owner:DONGGUAN FEIYANG LIGHTING TECH CO LTD

Electric connector and jack contact piece of rotating hyperboloid bus set densely-wound wire spring structure

The invention relates to an electric connector and a jack contact piece of a rotating hyperboloid bus set densely-wound wire spring structure in the same. The jack contact piece comprises a wire spring ring, and a rotating hyperboloid densely-wound wire spring bus set, wherein a group of straight bus which is made of elastic metal wires rotates left or right in an equal inclination around the center axis of the spring ring to form the rotating hyperboloid densely-wound wire spring bus set. Both ends of each straight bus are respectively hanged in openings of two axial ends of the spring ring. When a pin is inserted into the jack contact piece, the inner side of the rotating hyperboloid densely-wound wire spring bus set coats the surface of the pin to form conductive contact. According to the invention, the electric contact area of the pin and the jack can be greatly increased; the transient fault probability and the transient fault time are greatly reduced; high current and high power transmission can be realized; a spiral angle is controlled to ensure reliable connection and smooth plugging of the electric connector; and stable and reliable electrical connection of a bumping and large current transmission carrier in high-speed operation and continuous vibration is ensured.
Owner:SHANGHAI SFUN ELECTRICAL TECH

Packaging structure and forming method thereof

The invention discloses a packaging structure and a forming method thereof, wherein the forming method of the packaging structure is that the first surface of a chip layer is provided with a protective layer and a welding pad layer, and the second surface of the chip layer is provided with a plurality of grooves exposed out of the protective layer; a first insulation layer is formed at each of the second surface of the chip layer, and the surfaces of the side walls and the bottoms of the grooves; the thicknesses of the first insulation layers positioned at the bottoms of the grooves are thinner than the thickness of the first insulation layer positioned at the second surface of the chip layer; through holes penetrating through the first insulation layers, the protective layer and the welding pad layer are formed in the bottoms of the grooves; parts of the first insulation layers around the through holes are removed and are exposed out of the bottoms of the grooves; afterwards, conductive layers are formed at the surfaces of the first insulation layers, the surfaces of the bottoms of the grooves, and the surfaces of the side walls and the bottoms of the through holes. The electrical performance and the stability of the formed packaging structure are improved.
Owner:CHINA WAFER LEVEL CSP

Preparation process of zinc oxide coated silicon negative electrode material

The invention relates to the technical field of lithium ion battery negative electrode materials, and in particular relates to a preparation process of a zinc oxide coated silicon negative electrode material. The preparation process sequentially comprises the steps of 1) performing ball milling treatment on conductive agent graphene, a binder and silicon nanoparticles, adding deionized water, and uniformly stirring to obtain slurry; 2) coating the slurry on the surface of a current collector and then drying; 3) activating and melting zinc powder to obtain zinc in a molten state; and 4) after the porous aluminum foil negative electrode material coated with the graphene and the silicon nanoparticles is uniformly coated with zinc in the molten state, performing calcination treatment to obtain the zinc oxide coated silicon negative electrode material. The preparation process provided by the invention is simple and easy to implement, simple and convenient to operate and low in required cost, and the prepared zinc oxide coated silicon negative electrode material can effectively prevent the problem of volume expansion and shrinkage of silicon in the charge-discharge reaction process, inhibit side reaction of the negative electrode material and improve the stability and the cycle efficiency of electrode circulation, and has relatively high conductive performance.
Owner:DONGGUAN UNIV OF TECH

Single-nut grooved conical-surface fixed-type high-voltage large-current wiring terminal

The embodiment of the invention discloses a single-nut grooved conical-surface fixed-type high-voltage large-current wiring terminal, and the wiring terminal comprises a first wiring terminal and a second wiring terminal. The first end of the first wiring terminal is a hollow cylindrical segment, and the second end of the first wiring terminal is a cylindrical segment perpendicular to the axial direction of the first end, wherein a conical hole segment and an installation hole segment which are communicated with each other are formed in the cylindrical segment. The first end of the second wiring terminal is a hollow cylindrical segment, and the second end of the second wiring terminal is a conical shaft segment and a stud segment which extend from the first end. The conical shaft segment is provided with a grooved structure, and the stud segment is provided with an external thread. The second end of the second wiring terminal is accommodated in the second end of the first wiring terminal, and the conical shaft segment of the second wiring terminal cooperates with the conical hole segment of the first wiring terminal. The stud segment of the second wiring terminal passes through theinstallation hole segment of the first wiring terminal, and is fixed through a nut. According to the embodiment of the invention, the wiring terminal can avoid the displacement between terminals, andincreases the contact area of the wiring terminals.
Owner:SHENZHEN POWER SUPPLY BUREAU

Integrated rotary power taking socket, wall-type extension socket wiring rail and light rail-type extension socket

The invention relates to the technical field of sockets, in particular to an integrated rotary power taking socket, a wall type extension socket wiring rail and a light rail type extension socket. According to the wall type extension socket wiring rail, an power taking arm based on an integrated rotary power taking socket., the distance between a first limiting frame and a second limiting frame isdesigned to be matched with the width of the power taking arm, the heights of the first limiting frame and the bottom plane are designed to be matched with the heights of the two sides of the power taking arm, and a strip-shaped groove in the middle of the designed bottom plane is matched with a ground wire connecting end of the integrated rotary power taking socket, so the socket is guided to becorrectly inserted at the first moment, rotation is performed then by taking the ground wire connecting end as a circle center, the two sides of the power taking arm are guided to reach the power taking position at the next moment, under the elastic action of the elastic live wire power taking assembly, the elastic zero wire power taking assembly and the elastic ground wire connecting assembly ofthe socket, the live wire power taking end and the zero wire power taking end are firmly connected with the first electric connecting piece and the second electric connecting piece in a face-to-facemode, and good power transmission between the wiring rail and the power taking socket is guaranteed.
Owner:惠州市加迈电器有限公司

Charging system for robot terminal

The invention provides a charging system for a robot terminal. The charging system comprises a charging apparatus and a charging pile for the robot terminal, wherein the charging apparatus for the robot terminal is arranged in the robot terminal; the charging apparatus for the robot terminal comprises a robot-mounted battery, a connecting apparatus and a power panel; the charging pile is electrically connected with the robot-mounted battery through the connecting apparatus and used for charging the robot-mounted battery through the connecting apparatus; the robot-mounted battery is electrically connected with the power panel through the connecting apparatus and used for transmitting the stored electric energy to the power panel through the connecting apparatus; and the power panel is used for supplying power supply to the robot terminal. According to the charging system, the novel connecting apparatus is adopted for charging and supplying power to the robot terminal; the stability of charging and power supply of the robot-mounted battery in the charging system is ensured, and meanwhile, a relatively large electric contact area between the connecting apparatus and the connection object of the connecting apparatus is realized, so that the charging and power supply efficiency of the robot-mounted battery are relatively high, and the working efficiency of the robot is further improved consequently.
Owner:ZHEJIANG LIBIAO ROBOT CO LTD

Contactor for realizing electric connection between moving and stationary contact poles in transformer

The invention discloses a contactor for realizing electric connection between moving and stationary contact poles in a transformer, which consists of a cylindrical metal tube, wherein an annular flange is arranged on an inner circumferential wall at one end of the cylindrical metal tube toward the direction of an axial centre; a connection surface between the annular flange and an end face of the cylindrical metal tube is a conical surface; more than two cracks are arranged in a tube wall of the cylindrical metal tube; the extending direction of any one of the cracks is parallel to the axial direction of the cylindrical metal tube; the cracks extend to the cylindrical metal tube from one end of the cylindrical metal tube where the annular flange is located; an annular groove is arranged on an outer circumferential wall of the end of the cylindrical metal tube where the annular flange is located; and a reinforcing clamping spring is sleeved in the annular groove. In the use of the contactor for realizing the electric connection between the moving and stationary contact poles in the transformer, the electric connection between an inner circumferential surface of the cylindrical metal tube and outer circumferential surfaces of the stationary and moving contact poles is realized, so that electric contact area is increased greatly and tight and firm connection between the annular flange and the conical surface thereof and between the stationary contact pole and an internal thread sleeve is realized.
Owner:SHANGHAI RITCHEY ELECTRICAL EQUIP

Split type polar plate lap joint structure and electrolytic bath with same

The invention discloses a split type polar plate lap joint structure which comprises a conductive bus bar, a conductive beam fixing seat and a limit seat, wherein the conductive beam fixing seat comprises a seat body and a cover body, the seat body is made from a conductive material and provided with a seat body bottom edge and two seat body side edges, and an opening is formed in the top; the cover body is made from an insulation material, the top of the seat body is covered with the cover body, and the cover body is provided with a cover body top surface and two cover body side edges; the limit seat is made from an insulation material and provided with a seat body bottom edge and two seat body side edges, and an opening is formed in the top. By the aid of the arrangement of the conductive beam fixing seat, the cover body applies pressure to a conductive beam from the top, and the conductive beam is accommodated in the seat body, so that the conductive beam is surrounded by the four surfaces of the conductive beam fixing seat, the electrical contact area of the conductive bus bar and the conductive beam is increased, the contact of the conductive beam and the conductive bus bar is good, the bath voltage is lower, the cathode and anode spaces are uniform and no error exists, the electric efficiency is higher, the conductive beam and a polar plate cannot be loosened along with human factors and electrolysis technology factors after the conductive beam is pressed by the cover body, and the false contact phenomenon cannot be caused.
Owner:HANGZHOU EMPEROR LOSSEN TECH

A charging system for a robot terminal

The invention provides a charging system for a robot terminal. The charging system comprises a charging apparatus and a charging pile for the robot terminal, wherein the charging apparatus for the robot terminal is arranged in the robot terminal; the charging apparatus for the robot terminal comprises a robot-mounted battery, a connecting apparatus and a power panel; the charging pile is electrically connected with the robot-mounted battery through the connecting apparatus and used for charging the robot-mounted battery through the connecting apparatus; the robot-mounted battery is electrically connected with the power panel through the connecting apparatus and used for transmitting the stored electric energy to the power panel through the connecting apparatus; and the power panel is used for supplying power supply to the robot terminal. According to the charging system, the novel connecting apparatus is adopted for charging and supplying power to the robot terminal; the stability of charging and power supply of the robot-mounted battery in the charging system is ensured, and meanwhile, a relatively large electric contact area between the connecting apparatus and the connection object of the connecting apparatus is realized, so that the charging and power supply efficiency of the robot-mounted battery are relatively high, and the working efficiency of the robot is further improved consequently.
Owner:ZHEJIANG LIBIAO ROBOT CO LTD
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