40results 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 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 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 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.