1. Introduction to Automotive Insert Fuse
A fuse is a wire made of a silver-copper alloy with a relatively large resistivity and a relatively low melting point.
According to the shape, it can be divided into: flat-head tubular fuse, spiral fuse, blade fuse, flat fuse, chip fuse and so on.
Second, the working principle of the car insert fuse
Conductors have a certain resistance, and when current flows through the conductors, the conductors will heat up. The current and resistance determine the speed of heat generation. The structure of the fuse determines the speed of heat dissipation. If the speed of heat generation is less than the speed of heat dissipation (slow heating and fast cooling), the fuse will not blow. If the rate of heat generation is greater than the rate of heat dissipation (fast heating, slow cooling), the fuse will blow when the temperature rises above the melting point of the fuse, so that the entire circuit and electrical parts will stop working and be protected.
The fuse used for overcurrent protection is the usual fuse.
The fuse used for overheating protection of car blade fuse is to prevent heating appliances or easy to generate heat.
The temperature of the electric appliance is too high for protection, such as: hair dryer, electric iron, rice cooker, transformer, electric motor, etc.; it responds to the increase in the temperature rise of electric appliances,
I don't care about the working current of the circuit.
Specifications of commonly used automotive fuses:
The intensity of common current is divided into milliampere level and ampere level, and automotive circuits are all ampere level fuses.
