Electric vehicle and energy recovery method for overcoming wind resistance in vehicle running

Abstract

The invention discloses an electric vehicle and an energy recovery method for overcoming wind resistance in vehicle running. The electric vehicle comprises a vehicle body and a vehicle-mounted electric appliance, wherein a wind channel which extends in a straight line and communicates with the head end and the tail end of the vehicle body is arranged in the vehicle body, a wind inlet is arranged at the front end of the corresponding wind channel, the back end of the wind channel is provided with a wind outlet arranged at the tail end of the vehicle body, a blower fan with fan blades or wind wheels is arranged in the wind channel, a shaft of the blower fan is in drive connection with an input end of a reducing unit, the speed ratio of an input shaft to an output shaft of the reducing unit is greater than 1, the output end of the reducing unit is in drive connection with an input shaft of a generator arranged outside the wind channel on the vehicle body, and an output circuit of the generator is connected with a storage battery for supplying electricity to the vehicle-mounted electric appliance. The invention successfully recovers electricity consumption originally used for counteracting wind resistance to a standby storage battery, and the recovered energy can be used as a standby power supply for extending the continued voyage course and supplying in-vehicle air conditioning, lamps, electric glass, audio units and the like, thereby reducing the loss of a main battery.

Description

technical field [0001] The invention relates to vehicles, especially electric vehicles. Background technique [0002] Existing electric vehicles take the vehicle-mounted storage battery as the power supply, drive the wheels with a motor, and simultaneously use the storage battery to supply power to other vehicle-mounted electrical devices. In the prior art, there is an electric vehicle in which a wind power generation power device including an air duct is added to the vehicle, such as the wind power generation power device of an electric vehicle disclosed in Chinese patent CN 2813353Y. There are practical defects in the existing technologies of generating electricity from the windward resistance of vehicles. This is because according to the law of energy conservation, energy can neither be generated nor disappear out of thin air, but can only be converted from one form to another. Form, or transfer from one body to another, in which the total amount of energy remains the sa...

AI Technical Summary

Problems solved by technology

If you want to recover and utilize the energy of wind resistance, the only way is to use a wind generator, but if you simply install a wind generator on the force-bearing surface, this will only increase the drag coefficient and waste the energy of the vehicle itself. obviously not worth the candle

The fundamental reason why the existing technology does not have practical value is that there are several problems that have not been overcome. First, the shape of the moving object is not changed to reduce the drag coefficient; In the load state, the speed of the blades is equal to the speed of the central shaft of the generator, because the generator will produce a bonded state when doing work, so the speed of the blades will reduce the speed due to coaxial reasons. The most important thing is It affects the air volume of the blades. When the wind speed, that is, the vehicle speed is equal, the difference in air volume will seriously affect the drag coefficient of the vehicle; the third is that the resistance caused by the appearance is not completely solved. The vacuum behind the car area, the appearance resistance of a sedan car will be smaller than that of a hatchback

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