4results about "Single contact pieces" patented technology

This invention relates to the field of electrified construction equipment technology for water conservancy projects, and discloses an electrified construction towed track system suitable for large-scale tunnel excavation. The system includes a DC power supply track system, an intelligent sliding contact power receiving module, construction vehicle terminals, a current-collecting cable, an electric construction vehicle, and a traction substation. The DC power supply track system adopts a modular splicing structure, allowing for dynamic disassembly and relocation along with the tunnel excavation surface. The intelligent sliding contact power receiving module uses strain gauges to achieve closed-loop tension control of the current-collecting cable, combined with a mechanical anti-derailment structure to ensure stable power reception. The electric construction vehicle has dual modes: track-based power reception and trackless independent operation. This invention solves the problem of continuous power supply for electric engineering machinery in dynamic construction of large tunnels, enabling full-cycle electrified construction of tunnels, and is applicable to underground engineering construction scenarios such as water conservancy, transportation, and mining.

The invention relates to a charging station (4) for charging an electric energy storage device (2) of a vehicle (1), in particular a road or rail vehicle which has a current collector (5) with at least one raisable and lowerable contact strip (10) in order to supply energy from a single- or double-pole overhead line system. The charging station (4) comprises at least one charging contact (11) per contact pole (9), said charging contact being arranged above a charging position for the vehicle (1) such that at least one point of contact (14) can be produced between the contact strip (10) and the charging contact (11) for each contact pole (9). Charging processes can be carried out with higher charging currents, and therefore with shorter charging times, in that the charging contact (11) of the charging station (4) according to the invention has a heat sink (15) for cooling the point of contact (14).

The application aims to provide a railway locomotive power supply device, which comprises a power supply unit installed on a track, the height dimension of the power supply unit is higher than the center line of the track by a fixed dimension a after installation, a<=d, d is the bottom clearance of the locomotive; a power supply cable connected with the power supply unit to supply power to the power supply unit; a current collector installed on the railway locomotive and matched with the power supply unit; and a lifting device connected with the current collector to control the lifting of the current collector; after the above technical scheme is adopted, the application can meet the demand of the rapid charging of the railway locomotive ground power supply, and can reduce the stray current and facilitate the on-site construction.

An electric charging system for an electric vehicle comprises direct voltage rails (102, 103) and a supply sledge (104) above the direct voltage rails and moveable along the direct voltage rails The direct voltage rails can be in an upwards opening gutter (114) that can be on the ground or at least partly below the ground level. The supply sledge comprises contact elements (105, 106) for forming contacts with the direct voltage rails, electric conductors (107, 108) connected to the contact elements and to a charging cable (109) whose other end has a charging plug. The supply sledge comprises a force-control system for changing contact forces between the contact elements and the direct voltage rails. Due to the force-control system, reliable galvanic contacts between the contact elements and the direct voltage rails can be made, although the supply sledge is movable along the direct voltage rails.