32results about How to "Avoid electric energy" patented technology

The invention discloses an energy feedback type damper which can combine piezoelectric ceramic and magnetorheological fluid, wherein the energy feedback type damper can supply electric energy which is generated by piezoelectric electricity generation units due to vibration to the magnetorheological fluid for shock absorption. The energy feedback type damper comprises a cylinder body, a piston rod, the upper piezoelectric electricity generation unit, the lower piezoelectric electricity generation unit, an electric energy extraction and storage unit, a pressure sensor and a controller. The upper piezoelectric electricity generation unit is installed outside a rod body in a sleeved mode. An upper partition plate is arranged below the upper piezoelectric electricity generation unit in an overlapping mode. The lower piezoelectric electricity generation unit is arranged on the inner bottom surface of the cylinder body. A lower partition plate is arranged on the lower piezoelectric electricity generation unit in an overlapping mode. An upper magnetorheological fluid chamber containing magnetorheological fluid is formed between the upper partition plate and a piston body. A lower magnetorheological fluid chamber containing magnetorheological fluid is formed between the piston body and the lower partition plate. The piston body is provided with a plurality of throttling holes. An excitation coil mechanism is installed in the piston body. The upper piezoelectric electricity generation unit and the lower piezoelectric electricity generation unit are connected with the electric energy extraction and storage unit. The pressure sensor is connected with the controller. The electric energy extraction and storage unit is connected with the excitation coil mechanism through the controller. The pressure sensor is installed on the upper partition plate.

A motion assisting device comprises a first index value measuring means 65 which measures a first index value indicating a remaining energy amount of an electrical storage device 19 and power regulation means 63 and 64 each of which regulates the motive power of an electric actuator 9 after the time point of measuring the first index value at least according to the first index value measured by the first index value measuring means 65. The power regulation means 63 and 64 regulate the motive power of the electric actuator 9 so that the remaining energy amount of the electrical storage device 19 is maintained at a predetermined lower limit or greater until the end time point of a desired operating time of the motion assisting device A.

The invention discloses vehicle-mounted wind power generation equipment. The vehicle-mounted wind power generation equipment includes a mounting box, the mounting box is internally provided with a mounting cavity, a rotary trough is internally arranged at the bottom of the mounting cavity, the rotary trough is internally connected with a rotary shaft in a rotary mode, the rotary shaft penetrates through and is rotatably connected with the upper end of the mounting box, the side wall, positioned in the mounting cavity, of the rotary shaft is fixedly sleeved with first gears, electric generatorsare symmetrically arranged on two sides of the rotary shaft, the two electric generators are fixedly connected to the inner bottom of the mounting cavity, the tail ends of input shafts of the two electric generators are fixedly connected with second gears corresponding to the positions of the first gears, the second gears are connected to the first gears in a meshing mode, and a plurality of limiting sliding grooves are formed in the side wall of the end, positioned outside the mounting cavity, of the rotary shaft. The vehicle-mounted wind power generation equipment is simple in structure, wind power generation can be conducted in the process of vehicle driving, the condition that an engine generates electric energy is avoided, fuel consumption is reduced, and then destruction of the environment is slightly reduced.

A power conversion device includes a DC-DC converter, a DC-AC inverter and a relay. The DC-DC converter leads in a DC from an external solar panel and transforms the DC into a direct voltage. The DC-AC inverter transforms the direct voltage from the DC-DC converter into an alternating voltage and connecting to an external electric load via electric load output ends. The relay includes a coil connected to an external commercial power line via commercial power input ends, and conductive contacts actuated by the coil and serially-disposed between the commercial power input ends and the DC-AC inverter, and with the commercial power line electrifying the coils, the conduction control is formed therebetween, preventing the electric energy of the solar energy generation from inversely transmitting to the commercial power line when interrupting the commercial power service.