Speaking of the word fuse, it is estimated that many people have heard that the general electricity related will have a fuse. The role of the car fuse is estimated that many people do not understand, let Xiaobian use a real case to illustrate the importance of car fuses to you.
One owner found his car airbag warning lights, and then to the 4S shop maintenance, said the results of driving the airbag module is broken, to the exclusion of failure have to be replaced integrally and replacement costs need 2000 yuan. Because there was no goods in the store, so no repair. A few days later and went to the 4S shop maintenance to repair master to detect airbag lamp, the big turn 180 degrees, repair Master said without changing the module, the problem in the fuse "responsible for the airbag burned out, spent 2 yuan of money to replace the fuse new problem is solved. Through the above examples is not difficult to see the fuse is the role of how big, a small fuse instantly reduced maintenance costs 1000 times, showing how big their influence is. Let the Xiaobian on the car fuse common sense to do some simple introduction. The fuse fuse definition: only its real name is known, the official fuse (hereinafter referred to as unity in order to understand easily the most basic role is to fuse), when the circuit and the abnormal current exceeds the rated current to the fuse circuit protection function. General fuse has two important working parameters, one is rated current; one is rated voltage, when using the circuit according to the current and voltage to select the corresponding fuse.
In the structure design, insert the vehicle with the fuse, the fuse has a plastic shell, coated with zinc or copper melt structure made of metal melt, and pin connections.
Automotive chip fuse specifications are generally 2A to 40A, the ampere value will be marked at the top of the fuse. If the fuse burned out let ampere illegible numerical, we also can be judged by the color of it, the international standard: 2A, 3A, 4A, grey purple pink 5A, orange yellow, brown, red, 7.5A 10A 15A 20A 25A, blue, yellow, green, colorless and transparent 30A 40A deep orange. Where do car fuses usually hide?
Since many parts and electronic equipment on the car, and each equipment will be provided with a fuse, so in order to facilitate the day after the repair, each car at the beginning of the design, the designers are focused on the design of auto fuse in one place, and this place is called the insurance box. A car usually has two insurance box, one is located in the engine compartment, responsible for the external electric appliances fuse, such as engine control units, horn, glass cleaner, ABS, headlight etc.; another driver in a car near the left, management of electrical appliances, such as window lifter, airbags, electric seat, cigarette lighter etc..
The above is about car fuse common sense, appropriate understanding of some relevant knowledge, help owners to car fuse fault judgment. In addition, when the problem at least know where to view, not like headless flies everywhere hit.