39results about How to "Increase the conductive cross-sectional area" patented technology

The embodiment of the invention provides a connector plug and socket, and the plug comprises eight plug terminals at the upper row of the plug and eight plug terminals at the lower row of the plug, wherein the eight plug terminals at the upper row of the plug and the eight plug terminals at the lower row of the plug respectively comprise four plug power terminals. Each plug power terminal comprises a first contact part and a second contact part, wherein the length of the first contact part is greater than the length of the second contact part. The socket comprises eight socket terminals at the upper row of the socket and eight socket terminals at the lower row of the socket, wherein the eight socket terminals at the upper row of the socket and the eight socket terminals at the lower row of the socket respectively comprise four socket power terminals. The width of each socket power terminal from the central part to the rear part is greater than the width of the front part of the socket power terminal, thereby increasing the contact area of the socket power terminals with the plug power terminals, further increasing the area of the conductive section of the socket and the plug, improving the current-passing capability of a connector, and meeting the demands of a large current.

The invention relates to the field of smoking sets, and provides a heater and a smoking set comprising the heater. The heater comprises a base body which is provided with a surface, and a first electrode film layer, an infrared film layer and a second electrode film layer which are sequentially formed on the surface of the base body in the direction perpendicular to the surface of the base body, wherein the first electrode film layer and the second electrode film layer are electrically connected with a power supply; and the infrared film layer is used for generating heat under the action of electric power and transmitting the generated heat to an aerosol forming matrix at least in an infrared radiation mode so as to generate aerosol for smoking. Through the first electrode film layer, the infrared film layer and the second electrode film layer which are sequentially formed on the surface of the base body in the direction perpendicular to the surface of the base body, the conductive cross-sectional area of the infrared film layer is increased, the electro-thermal conversion rate of the infrared film layer is increased, the preheating time of the aerosol forming matrix is shortened, and the user experience is improved.

The invention discloses a contact member. The contact member includes a metal cylinder; the metal cylinder is provided with a slit in the axial direction; two ends of the metal cylinder are respectively provided with a plurality of bending shrapnel pieces separated from each other; and bending directions of the bending shrapnel pieces bend toward the direction of the outer wall of the metal cylinder from the center of the metal cylinder. The invention provides the contact member with short structure and excellent conductive effect.

The invention provides an anti-electric shock connector with a built-in magnet. A first magnet and a second magnet are arranged in the anti-electric shock connector, and conduction and disconnection of the anti-electric shock front-end electrode and the anti-electric shock rear-end electrode are ingeniously realized by utilizing the characteristic that like magnetic poles of the magnets repel eachother so that the occurrence of an electric shock accident of a human body is avoided. A fuse is arranged in the other conductive part of the anti-electric shock connector, so the connector has anti-short circuit and anti-electric shock functions. According to the anti-electric shock connector, the signal transmission electrode is added to the anti-electric shock connector, so signal communication can be performed to monitor the state of the battery in real time, and the connector has a signal transmission function and an anti-electric shock function or has a signal transmission function, ananti-short-circuit function and an anti-electric shock function.

The invention discloses a multi-contact high current elastic contact element terminal. The contact element terminal comprises an abutting end region (110) and a terminal connecting region (120), wherein the abutting end region (110) comprises a plurality of long contact regions and a plurality of short contact regions, and the contact regions have metal plate stagger structures and form a plurality of front and rear contact zones so as to form multi-contact. The roots of the long contact regions and the roots of the short contact regions are correspondingly distributed on two sides of the abutting end region (110), and the long contact regions are turned to be distributed on the same side as the opposite short contact regions and form contact regions of the same side together with the opposite short contact regions. The abutting end region (110) and the terminal connecting region (120) have mutually reverse folded structures. The contact element terminal has large contact region area and high connecting reliability, effectively reduces the calorific power in the high current transmission process, optimizes a heat dissipation channel, improves the current carrying capability, has small volume, saves the materials, and has low cost.

The invention discloses an aluminum alloy shaped wire photoelectric composite cable which comprises a core wire. The core wire is formed by stranding a plurality of galvanized stranded steel wires, a plurality of trapezoid aluminum alloy single wires and a trapezoid optical unit are concentrically stranded outside the core wire, and a plurality of fan-shaped aluminum alloy single wires are concentrically stranded outside the trapezoid aluminum alloy single wires and the trapezoid optical unit. The defects that common round wire aluminum conductor stranded wires are large in loss and low in tensile strength, and cannot be laid in an overhead mode in long distance in actual use are overcome. Shaped wires are tightly stranded, and the maximum electric conduction sectional area is made to exist in limited space of the equal outer diameters of wires. When wire transmission capacity is increased to 180%-200% of a conventional wire, a wire sag increment is still within the range allowed by the conventional wire, and the aims of power transmission energy saving and capacity improving are achieved.

The invention relates to a storage battery, in particular to a storage battery grid plate. The storage battery grid plate is realized through the following technical scheme that: the storage battery grid plate comprises a frame consisting of frame strips, wherein the frame is provided with a pole lug; radially-distributed oblique bars and transverse bars connected with the oblique bars are arranged in the frame; the oblique bars comprise the oblique bars of the first type and the oblique bars of the second type; along the direction from the frame strip on which the pole lug is to the frame strip opposite to the pole lug, the oblique bars of the first type start from the frame strip on which the pole lug is and end at one transverse bar, and the oblique bars of the second type start from the transverse bar and end at the frame strip opposite to the pole lug or end at the other transverse bar; the oblique bars of the first type and the oblique bars of the second type are distributed in a staggered mode; and at least one transverse bar is connected with terminal ends of a plurality of the oblique bars of the first type and is connected with starting ends of a plurality of the oblique bars of the second type. The storage battery grid plate is manly applied to storage batteries.

The invention discloses an electromagnetic relay suitable for automatic production and with reliable electroconductivity and an assembling method of the electromagnetic relay. The electromagnetic relay comprises yoke, a movable spring and a movable spring leading pin, wherein the yoke is provided with a second bulge, and the movable spring is provided with a clamping hole correspondingly matched with the second bulge of the yoke; a second positioning hole correspondingly matched with a first bulge of the yoke is arranged on the movable spring leading pin; the movable spring is correspondingly matched with the first bulge and the second bulge of the yoke through a first positioning hole and the clamping hole to be positioned and clamped on the yoke; and the movable spring leading pin is arranged on the yoke by being matched with the first bulge of the yoke via the second positioning hole and performs riveting on the first bulge so that the movable leading pin, the movable spring and the yoke are fixed together, and the movable spring is clamped between the movable spring leading pin and the yoke. By adopting the structure, on one hand, the electromagnetic relay can eliminate the disadvantage that the movable spring is easily divorced from the bulges of the yoke in an automatic assembling process, and on the other hand, the electromagnetic relay can realize the effects of improving a current-carrying area, shortening a conducting path and reducing heat generation, thereby achieving the purposes of high-current and high-reliability electroconductivity.

The invention discloses a method for preparing a high-performance double-layer polysilicon bipolar transistor, which includes the following steps: 1) using LOCOS and CVD to deposit SiO2 to form a composite isolation structure to reduce high-temperature process time; 2) using SiO2 as the base The etch stop layer of extremely polysilicon prevents etching damage; 3) SiO2 and N+ polysilicon are used to form a composite sidewall structure to reduce emitter resistance. Advantages: Reduce the high-temperature process time without reducing the isolation effect, so that a relatively thin epitaxial layer can be used to obtain better microwave performance, and silicon dioxide is used as the etch stop layer to eliminate the etching of the silicon epitaxial layer Corrosion damage, improve breakdown characteristics, increase current amplification factor, reduce noise figure. The silicon dioxide and N+ polysilicon composite sidewall structure can reduce the emitter resistance while ensuring the electrical isolation of the emitter-base, increase the current amplification factor, and reduce the noise figure.

The invention discloses a synchronous rectifying circuit structure for a high-frequency switch power supply and provides a field effect transistor parallel connection structure based on a copper base plate and a connecting way of a field effect transistor, a high-frequency transformer and a heat radiator. In a full-wave synchronous rectifying circuit adopting a common drain electrode connecting method, drain electrodes of a plurality of surface mounting type encapsulated field effect transistors are welded with a copper base plate; and grid electrodes and source electrodes are welded with a printed circuit board and connected with an output terminal of the high-frequency transformer. The copper base plate provided with the field effect transistors is connected with the heat radiator in use, and the heat radiator is meanwhile used as an output positive bus. Finally, the terminal of the high-frequency transformer is in compression joint with the printed circuit board, the copper base plate and the heat radiator to meanwhile play roles of fixation and support.

The invention belongs to the field of high-current connectors, and particularly relates to an optimized jack contact, a composite hole sleeve structure and a manufacturing method of the optimized jack contact. Aiming at the problems of poor conductivity, poor supporting capability and short service life of the existing jack contact, the invention provides the following scheme: the jack contact comprises a jack contact, and the jack contact comprises a simply supported beam group; the simply supported beam group comprises an upper part, a middle part and a lower part, wherein the cross sectional areas of the upper part, the middle part and the lower part are (1-2): 1: (1-2) respectively, and the top and the bottom of the simply supported beam set are both fixedly provided with edge rolling metal; the simply supported beam set comprises a plurality of first simply supported beams, and each first simply supported beam comprises an upper portion, a middle portion and a lower portion. According to the invention, after the torsion process treatment, the simply supported beam becomes a rotary hyperboloid. The projection of the axial cross section of the spiral cylinder wall is a rotary hyperboloid, the rotary hyperboloid is uniformly distributed in a circle, the conductive sectional area of the contact element is large, the load is large, and the weight of the contact element is reduced.

A semiconductor device and its manufacturing method, the semiconductor device includes: a substrate; and an epitaxial layer located above the substrate, wherein the epitaxial layer includes a plurality of first grooves and a plurality of second trenches arranged alternately along a first direction Groove; wherein the epitaxial layer between each adjacent first groove and second groove includes a first doped region and a second doped region, and the first doped region and the second doped region have different The conductivity type, and the interface between the first doped region and the second doped region forms a super junction structure; and a gate structure, located above the epitaxial layer, wherein the epitaxial layer below the gate structure includes along a second A channel extending in a direction, wherein the first direction is perpendicular to the second direction. Compared with the prior art, the present invention can increase the conduction cross-sectional area of ​​the drive current, improve the drive current and reduce the conduction resistance.

The invention discloses an electromagnetic relay suitable for automatic production and with reliable electroconductivity and an assembling method of the electromagnetic relay. The electromagnetic relay comprises yoke, a movable spring and a movable spring leading pin, wherein the yoke is provided with a second bulge, and the movable spring is provided with a clamping hole correspondingly matched with the second bulge of the yoke; a second positioning hole correspondingly matched with a first bulge of the yoke is arranged on the movable spring leading pin; the movable spring is correspondingly matched with the first bulge and the second bulge of the yoke through a first positioning hole and the clamping hole to be positioned and clamped on the yoke; and the movable spring leading pin is arranged on the yoke by being matched with the first bulge of the yoke via the second positioning hole and performs riveting on the first bulge so that the movable leading pin, the movable spring and the yoke are fixed together, and the movable spring is clamped between the movable spring leading pin and the yoke. By adopting the structure, on one hand, the electromagnetic relay can eliminate the disadvantage that the movable spring is easily divorced from the bulges of the yoke in an automatic assembling process, and on the other hand, the electromagnetic relay can realize the effects of improving a current-carrying area, shortening a conducting path and reducing heat generation, thereby achieving the purposes of high-current and high-reliability electroconductivity.

The invention discloses a process for manufacturing a solar cell by twice screen printing and grooving, which is used for manufacturing the solar cell by twice electrode printing and comprises a grooving process and a twice printing process, wherein the grooving process comprises the step of performing grooving on an electrode grid line area on the surface of a silicon wafer so as to form an etched groove in the electrode grid line area; and the twice printing process comprises the following steps of: a, primary electrode printing, namely, filling printing electrode paste into the etched groove and performing drying to form a first layer of electrode in the etched groove; and b, secondary electrode printing, namely, printing the electrode on the outer surface of the first layer of electrode so as to form a second layer of electrode in the electrode grid line area on the surface of the silicon wafer. The solar cell manufactured by the method has relatively lower series resistance, a selective emitter and relatively higher conversion efficiency, and can reduce shading loss; and the electrode paste is difficult to spread in a sintering process.

The invention discloses an aluminum electrolysis anode hollow aluminum pouring steel claw. A hollow steel claw steel shell is included. An aluminum guide rod connecting plug is arranged at the upper end of the hollow steel claw steel shell. A steel claw beam is arranged at the lower end of the hollow steel claw steel shell. A set of steel claw feet are arranged at the lower end of the steel claw beam. The steel claw beam and the steel claw feet are each of a hollow structure. An aluminum core is poured into the aluminum guide rod connecting plug on the hollow steel claw steel shell, the steelclaw beam and the steel claw feet. By means of the aluminum electrolysis anode hollow aluminum pouring steel claw, the electrical resistivity of an anode guide rod and the steel claw is reduced, electrical losses are reduced, the production cost is reduced, and the beneficial effect that the integral mechanical strength is high is achieved.

A power device and a method for manufacturing a printed circuit board winding are disclosed. The power device includes: at least one printed circuit board (100), at least one magnetic core (201,202), and at least one group of semiconductor transforming units (301). The printed circuit board (100) is provided with magnetic core slots for installing magnetic cores (201, 202). The side wall of at least one magnetic core slot is provided with conductive side wall windings (102, 105, 107). The conductive side wall windings carry out an electromagnetic transformation in coordination with the magnetic cores (201, 202) installed in the magnetic core slots. The conductive side wall windings adhere to part or all of the surface on the side wall of the slots. The semiconductor transforming unit (301) carries out an electrical energy transformation in coordination with the magnetic cores (201, 202) and the conductive side wall windings (102, 105, 107). The breakover impedance of the conductive windings on the printed circuit board (100) can be reduced.

The invention discloses a sliding type micro limit general switch. The switch comprises a bottom casing, a surface cover and working assemblies arranged between the bottom casing and the surface cover; the working assemblies include a moving contact assembly, a movable assembly, a movable rod assembly, a roller, a public pin and a plug pin assembly; the two ends of the movable assembly compresses the moving contact assembly and the movable rod assembly respectively; the moving contact assembly keeps making contact with the roller under the pressure effect of the movable assembly, the roller keeps making contact with the public pin under the pressure effect of the moving contact assembly, the moving contact assembly makes contact and is electrically connected with the public pin via the roller, and the moving contact assembly can slide up and down under the thrust effect of the movable assembly; and the plug pin assembly can make contact with the end portion of the moving contact assembly. Thus, the switch is avoided from a power-off or flickering phenomenon in a critical position, the metal conductive sectional area is increased, heavier current can be born, and the switch is safer and more reliable.

Embodiments of the present invention provide a printed circuit board and a power module. The printed circuit board comprises an insulating layer, a first planar conductive layer located above the insulating layer, and a second planar conductive layer located below the insulating layer. The insulating layer, the first planar conductive layer and the second planar conductive layer each are provided with a magnetic core groove having a penetrating magnetic core. The printed circuit board further comprises: at least one group of vertical conductive winding, configured to cooperate with the magnetic core mounted in the magnetic core groove to perform electromagnetic conversion. In the direction perpendicular to the insulating layer, one side of the at least one group of vertical conductive winding is located a position on the insulating layer or the first planar conductive layer except the magnetic core groove, and the other side of the at least one group of vertical conductive winding is located on a position on the insulating layer or the second planar conductive layer except the magnetic core groove. The printed circuit board can expand the sectional area of the conductive winding, and reduce the alternating current impedance of the power module.

The invention discloses a sliding type micro limit general switch. The switch comprises a bottom casing, a surface cover and working assemblies arranged between the bottom casing and the surface cover; the working assemblies include a moving contact assembly, a movable assembly, a movable rod assembly, a roller, a public pin and a plug pin assembly; the two ends of the movable assembly compresses the moving contact assembly and the movable rod assembly respectively; the moving contact assembly keeps making contact with the roller under the pressure effect of the movable assembly, the roller keeps making contact with the public pin under the pressure effect of the moving contact assembly, the moving contact assembly makes contact and is electrically connected with the public pin via the roller, and the moving contact assembly can slide up and down under the thrust effect of the movable assembly; and the plug pin assembly can make contact with the end portion of the moving contact assembly. Thus, the switch is avoided from a power-off or flickering phenomenon in a critical position, the metal conductive sectional area is increased, heavier current can be born, and the switch is safer and more reliable.