Structure Of Car fuse holder
May 31, 2022
What is the structure of the car fuse holder? What role does it play? Let's follow the fuse holder manufacturer to understand the car fuse holder in more detail.
Car fuse holder refers to the seat on which the car fuse is installed. The car fuse holder can be divided into: panel mounted car fuse holder; lead type car fuse holder; car fuse clip. Panel mounted car fuse holders are mostly used in car electrical appliances, such as car amplifiers, car speakers, car DVDs, etc.
1. The function and structure of automobile fuse holder
In the process of using the car fuse holder, the fuse can withstand a certain range of overload when the current fluctuates due to the power supply or its external interference. When a relatively large overload current occurs in the circuit of the car fuse holder, its The fuse should cut off its overload current within a fixed time.
The car fuse holder can protect the safety of other electronic components in the circuit to a certain extent. When a short circuit occurs in the circuit and a large current occurs, the fuse can safely cut off the circuit, which will prevent them from Damage caused by overcurrent.
The rated current in the car fuse holder is effectively called the nominal working current of the fuse, and its rated current value usually has 100mA, 160mA, 200mA, 315mA, 400mA, 500mA, 630mA, 800mA, 1A, 1.6A, 2A, 2.5 A, 3.15A, 4A, 5A, 6.3A, etc.
The fuse in the car fuse holder can be used at a voltage equal to or less than its rated voltage, but generally it cannot be used in a circuit where the circuit voltage is greater than the rated voltage of the fuse. The voltage drop in the device will pass the rated current to the fuse.
The thermal balance of the car fuse holder, that is, the voltage measured at both ends when the temperature is stable, and the voltage drop across the fuse will have a certain impact on the circuit to a certain extent. Therefore, in the regulations, the voltage drop is clearly stipulated. There are no requirements in the rules.
The overload current in the car fuse holder mainly refers to the current flowing in the circuit that is higher than that during normal operation. If the overload current cannot be cut off, it may cause damage to other electronic components in the circuit.
2. Classification of car fuse holders
Lead-type automotive fuse holders are mostly used in automotive wiring harnesses. The car fuse clip is used to install the car fuse on the circuit board. It is easy to install and easy to disassemble. According to the classification of the installed fuse, it can be divided into a fuse box and a fuse box.
If the car fuse holder is distinguished according to the size of its fuse, it can be divided into large fuse box, medium fuse box, small fuse box, according to material, can be divided into plastic fuse box, bakelite fuse box, according to environmental protection, It can be divided into environmental protection fuse box, non-environmental protection fuse box, according to the installation method: it can be divided into lead type fuse box and circuit board type fuse box, instrument panel installation fuse box, etc.
The car fuse holder is a current-sensitive component, and its function is to judge the overcurrent. When the unallowable fault overcurrent flows, the fuse should be blown. When the current is used, the fuse should be able to withstand enough times to ensure the normal use of the whole machine.
The current generally does not exceed the power-on pulse during normal use, and the number of power-on times will not exceed 10 times. The car fuse holder should never act. Once an abnormal fuse occurs, there must be a problem. If the cause of the abnormal fuse is not detected in time, Simply replacing the fuse or increasing the fuse capacity is not reassuring.
According to the classification of installed fuses, it can be divided into fuse box and fuse box. According to the size of the fuse, it can be divided into large fuse box, medium fuse box, and small fuse box. According to environmental protection, wooden fuse boxes can be divided into environmentally friendly fuse boxes, and non-environmental fuse boxes can be divided according to installation methods: they can be divided into lead-type fuse boxes and circuit board fuse boxes, and instrument panel installation fuse boxes.
3. What is the difference between a car fuse and a car fuse holder
Automobile fuse is a kind of current fuse. When the circuit current exceeds 2 times of the rated current of the fuse, it will blow in a few seconds and play a role in circuit protection. It is often used for overcurrent protection of automotive circuits and also for overcurrent protection of industrial equipment. There are many electrical devices in the car circuit that are connected by wires of different colors, the most important of which should be the fuse. The fuse is a customary name, and it is called a fuse in the national standard. The role of the fuse is to protect the circuit (circuit) and electrical equipment.
The above is the introduction of "automotive fuse holder structure". If you need to know more about the fuse holder, please contact our manufacturer.