How does a car refrigerator use electricity in a vehicle?
2 Answers
Car refrigerators are powered by connecting to the car battery or an external power bank. A car refrigerator refers to a portable cooler that can be carried in a vehicle. There are mainly two types of car refrigerators on the market: one is a semiconductor car refrigerator, which operates based on electronic chip cooling; the other is a compressor car refrigerator, which uses traditional compressor technology found in conventional refrigerators and provides lower cooling temperatures. After the car is turned off, the car refrigerator operates in the following two scenarios: 1. If the car cigarette lighter continues to supply power: the refrigerator will keep running and automatically activate the battery protection function. When the power level drops below the system-set value, it will automatically disconnect the circuit, stop operating, and enter a heat preservation state. 2. If the car cigarette lighter stops supplying power: the refrigerator will automatically stop operating and enter a heat preservation state.
The car refrigerator runs on the car's power supply. Every time I go on a road trip, I simply plug it into the cigarette lighter socket, which provides 12V DC power. No complicated operation is needed to start the fridge. You should check if the fridge's plug size matches—it's usually a round socket. If the current is too strong, the built-in fuse in the fridge will blow to protect the entire circuit. When parking for too long without driving, avoid leaving it plugged in to prevent draining the battery. I usually turn off the fridge or switch it to low-power mode before parking. Choosing an energy-efficient cooling fridge can save a lot of power—compressor types are more efficient than thermoelectric ones but slightly more expensive. It works great for keeping food cold during outdoor camping. Remember to clean the fridge coils regularly to prevent dust buildup from affecting heat dissipation.
