Current Collector

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current collector

[′kər·ənt kə‚lek·tər]

Current Collector


a device used in electrically powered rolling stock and in transportation and hoisting machines to take current from an overhead contact wire or from a rail.

The main type of current collector is the pantograph, which is intended for sparkless collection of current from an overhead wire at high running speeds. Pantographs are used on electric locomotives, self-propelled railroad cars, and streetcars. The frame of the pantograph is installed on the roof of the locomotive or self-propelled car. When the pantograph is raised, hinged arms and springs continuously press the current-collecting shoes against the contact wire. The pantograph is operated by remote control from the motorman’s cab. Trolleybuses, riverboats, streetcars, funicular railroads, and hoisting cranes use current collectors of the bar or roller type, which also collect current from overhead contact wires. Some models of streetcars employ bow-shaped current collectors. Collector shoes that slide along a rigid current-carrying contact rail are used in subway cars.


References in periodicals archive ?
Lithium ion battery electrode designs employing carbon nanotubes (CNTs) have recently demonstrated increased battery energy densities through use as a conductive additive and as a current collector replacement.
The super capacitor was created by growing nanowires perpendicular to the surface of the wire and these nanowires were coated with a gold palladium alloy, which acts as a current collector for the super capacitor.
Then they consider structure and options for device packing and evaluate choices for electrode, electrolyte, current collector, and sealant materials based on comparisons of available data.
Our study shows that the copper current collector plays a role in the performance of the battery.
The first layer, the positive current collector, is a mixture of purified singlewall carbon nanotubes with carbon black particles.
The new system is intended to enhance the efficiency of the second step, helping the electrons find their way: Adding the carbon nanotubes to the cell "provides a more direct path to the current collector," Belcher says.
The coating material on the metal current collector material placed between the cells in the cell stack has been modified and the temperature distribution withinthe module has been optimized, improving durability.
Avestor describes the LMP battery as a series of ultra-thin layers of four materials that are laminated together: metallic lithium foil anode, a solid polymeric electrolyte, a metallic oxide cathode, and an aluminum foil current collector.
The zinc-air fuel cell assembly includes: an anode pocket including an accommodation space for accommodating zinc balls and an electrolyte therein; a current collector disposed in the anode pocket, for collecting electrons generated during a reaction between the zinc balls and oxygen in the accommodation space; a housing including the anode pocket and the current collector therein; and a spraying nozzle installed in the housing and spraying a cleaning solution to the accommodation space at a high pressure, for deintercalating zinc oxide adsorbed to the zinc balls.
Tenders are invited for Cylinderical Current Collector Wheel Type Dia 3 Inch ,Thickness 1 Inch ,Center Hole 12 Mm, Half Round Solt -12 Mm On The Perifery , Appox.
The patents, titled "Fuel Cell Bipolar Separator Plate and Current Collector Assembly and Method of Manufacture" and "Method and Apparatus for In-Situ Leveling of Progressively Formed Sheet Metal," were assigned patents numbers 6,777,126 and 6,772,617, respectively.
Combined with an optimized structure geometry the HelioTrough reduces the investments cost by nearly 20 percent in comparison to current collector designs.