Solar Bike 5, Solar Bike

It is difficult to apply a large area of solar panels that are sufficient to directly drive the electric motor on bicycles, and it is still feasible to develop solar-charged bicycles, such as charging for 5 hours and riding for 1 hour. This allows for intermittent long rides that do not require human drive at all.

Do you want to use this solar energy for **? The principle of solar energy is to convert light energy into electrical energy and store it. Because light has a photoelectric effect, it can produce an electric current.

It is currently in the status of a "concept car". Due to the instability and dispersion of solar energy (about 1 kilowatt square meter when strong), as well as the low efficiency and high cost of solar energy harvesting devices, there is an almost insurmountable bottleneck for solar energy to power cars or bicycles, and the prospects are not promising. However, it is very realistic to use fixed devices to collect solar energy on a large scale to generate electricity, and to charge battery cars and battery bicycles as power, and it can be done now.

In fact, the simplest principle is to convert solar energy into electrical energy, and then convert electrical energy into mechanical energy.

Don't think about it, many companies are looking into it again.

Britain invented a solar bicycle driven by sunlight, which is not much different from ordinary bicycles; However, the bicycle carries a canopy device that can accept solar energy. When the user pushes the pedals on the bike, the canopy converts the received sunlight into energy and stores it in the bicycle battery, which discharges the electric engine at the rear wheel of the bicycle to make the bicycle move.

The bike is known to have a top speed of 15 miles per hour, and the solar-powered bike can also reduce the resistance that cyclists experience when riding their bikes up hills. According to Mirjevic, the designer of the solar-powered bike, "I designed this bike to be environmentally friendly and environmentally friendly.

According to Mirjevik, the bike's engine can be charged in sunny weather and when the bike is not being driven; If the weather is not good, the driver can use AC power to charge the battery.

This bike looks just like a regular e-bike. There is a canopy on the outside of the bike to allow for a large area to receive sunlight. If you don't use your bike during the day, you can place it in the sun to charge it in case you have enough power later.

At night, the bike has a small battery that lasts for hours. In order to save energy, the engine on board can be switched off during the drive down a steep slope. In addition, in order to make it easier for the rider to drive the bike and for the comfort of the rider, Mirjevik has designed the handlebars on the sides of the seat instead of placing them in front like a regular bicycle.

Thanks to the canopy, you can ride in the rain without worrying about getting wet, even when it's raining.

Meaningless! Doing research is another issue.

The core of the problem is that solar energy is a thin, dispersed and unstable energy source, which is completely unsuitable for automotive energy in the modern sense.

The solar radiation energy is 1,366 watt square meters outside the atmosphere and about 1,000 watt square meters inside the atmosphere.

This is around noon when the sun shines best, and the measuring surface should be perpendicular to the sun's rays.

According to the current practical silicon photocell, its photoelectric conversion efficiency is about 20%. When photovoltaic panels are used on the surface of automobiles, they cannot stand up and open like a butterfly like a satellite solar panel and track the sun, but can only be laid flat on the surface, so that the energy received is about halved. Assuming a 2 m x 5 m solar panel is tiled on top of a car, the average solar radiation power that can be received during normal sunshine hours is .

1000w*2*5*20%*

How big is this number, compare, Santana 4000, the maximum power of the generator is 80kw.

Drive the Santana 4000 with 80 parts of the power? That's why solar energy is not suitable for cars in the modern sense.

The technology of solar electric vehicles is still immature, in the experimental stage, in fact, there are not too many roads, and they are commonly found in competition venues and experimental sites.

There is a slight problem with the way it is connected.

I think it's better to connect that way.

In fact, this is equivalent to a simple solar DC power generation system, connecting all components through the controller, the solar panel charges the battery through the controller, and the battery discharges the battery car through the controller, and the battery car is a DC load;

As for the functions of voltage stabilization, overcharge, and overdischarge, they can be realized through the controller;

The battery supplies power to the electric vehicle, and a power regulator adapter should be connected in the middle.

A solar bike is a bicycle that converts solar energy directly into electrical energy and drives a motor to travel. It is mainly composed of solar cells, DC motors, storage batteries and bicycles.

The speed of the solar bike is set at 22 kilometers per hour. Based on the diameter of the bicycle's wheels of 26 inches, the motor speed is 170 revolutions per minute. Due to the bulky low-speed DC motor, it is difficult to install on a bicycle.

In the eighties, China's electric bicycle used a high-speed motor to decelerate. The 24-volt DC motor produced has a speed of 3500 revolutions per minute, and the speed is reduced by a mechanical reducer. It still feels bulky to fit on a bike.

Recently, the development of advanced power technology and people's attention to energy, safety and environmental protection have aroused people's development of low-speed DC motors, and China has successively developed electric hubs with the trinity of "motor, reducer and clutch". The weight is only kilograms. The power is 120 watts, 140 watts, 180 watts and 190 watts.

Various in-wheel motors with voltages of 24 volts and 36 volts. The outer edge of the hub has small holes that can be connected to the rim with spokes. The hub motor is 80 mm wide and can be used directly to replace the front or rear axle of the bike.

A: If the solar cell chip is small, it is not practical.

If the solar chipset is big enough to cover the entire shell of an electric car, it would be practical!

Because the voltage gap between the photovoltaic cell and the electric vehicle is not a problem, they can be converted from DC to AC with a high-efficiency inverter, and then the electric vehicle battery can be charged after step-up and rectification; Under the sun, during the entire ride and parking of the White Day, the electric car can be charged uninterruptedly; In addition, the riding time is always shorter than the stop time, and the electric car with solar energy will inevitably become a "tap" electric car that does not need to be charged by other power sources!

After the calculation of the area of the photocell and the output energy, the capacity of the photocell covering all the shells of the electric vehicle can fully meet the power demand of the general electric vehicle.

Note: A few years ago, there were already solar street lights, and the front 80x30 photocell chips charged the battery during the day, which can be used to light up the bright street lights for an all-night).