System components: the use of solar energy systems to the car, the most appropriate than a small energy storage system. This system consists of solar photovoltaic modules, solar charge controller, solar battery.
Solar modules: the most common size is about one meter five or so, the power of more than 100 to two or three hundred range. This component is used to receive sunlight, usually on the roof. General roof of the car at least be able to put down two solar panels, add up to that is 500 degrees watts of the components!
Solar charge controller: that is a charger, before using the most is the PWM type, but the efficiency is very low, and now basically with MPPT type, efficiency is much higher, generally more than 95 percent.
Now the car can use the small charge controller output is automatically identified, Battery is only 24/48 of the 12 v/v, if the battery voltage again big, such as 96 v, 110 v, 220 v, etc, you have to select the corresponding Charge controller. The input terminal may be such that the voltage of the solar cell module is not greater than the rated input voltage of the charge controller. Another point must be noted that the terminal voltage of the component must be higher than the battery voltage 3-5V above to work properly, for example, you use a 12v battery, then your component voltage must be 17v or 17v or more to work. Now, there are some controllers that can charge a low-voltage battery pack from a high-voltage PV solar panel, as long as the voltage at the input of the charge controller is satisfied.
Battery: the size of the general installation of the battery are in accordance with the needs of individuals to match. Now commonly used method is to install the battery with the car start the battery connected through the isolator together, through the original car generator, solar energy to form a combined power supply.
System power generation calculation: According to 500W to calculate the duration of the sun exposure by 4.5 hours, 500W * 4.5H * 0.7 = 1.54 kWh, no electricity outdoors, this supplement is still very good.
In this case,
The installation of solar energy in the car
Solar panel power generation depends mainly on the size of the area.
1, the installation of solar modules, not simply installed on the can, Need according to your rv appliances use electricity to work out how much you need of solar energy components, and then you Again according to how many days do you probably need to calculate how much you need battery power reserves , And then depends on the calculated number of components can meet the roof area needs, whether the design is reasonable, and then to improve.
2, take Iveco and the new generation, for example, both car roof width of about 3.5 * 1.8m, the basic can be installed between 500-2500 watts of solar modules, it is worth noting that more than 750 watts of solar panels Can not be tiled, because the roof is not so much area, also need to fold design.
3, for the installation of solar modules, the need to note is: First of all, can't trample;Secondly, cannot have the shadow cover;
4, conditions permitting, the car side of the glass can be customized all-glass components, Such both neither are influence in the rv daylighting and power generation, but such cost will be higher.
Installation of rv solar power system case sharing
From the RV customers to share:
The car electrical load:
1, A small refrigerator power 0.4 degrees every day;
2,600w of the rice cooker used twice a day, each 1 hour;
3, 24-inch LED screen TV every day to see two hours. 1 LED small lights. Occasionally use the computer, Have to turn off the TV when you was with a computer.
Based on these loads, to the customer with a 750W solar power generation system: 140W solar photovoltaic panels - 2 (considering the length and width of the roof set); Battery: two piece 12v 100ah ;Inverter: 750w off-grid power frequency inverter;Controller: 30ah 12v.
Want to install the friends can refer to reference, according to their own requirements.