Dimensions of car fuse holders
May 31, 2022
What is the size of the conventional car fuse holder? Now the fuse holder manufacturer will briefly describe the conventional size of the car fuse holder for us.
1. Car fuse holder
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.
2. Classification of fuse holders
Fuse holders can be divided into: panel mount fuse holder, PCB mount fuse holder, lead fuse holder and car fuse holder; panel mount fuse holder (mostly used for electrical equipment, such as power amplifier, DVD, speakers, massage chairs and other electrical equipment) ; Lead fuse holder (used for the connection of small household appliances and industrial machinery wiring harness); PCB fuse holder (used for small household electrical appliance control boards) and fuse clips (used for small household electrical appliances control boards). Car fuse holders can be divided into lead-type car fuse holders (multi-purpose car and industrial machinery wiring harness); panel-mounted car fuse holders (used in car electrical appliances, such as car amplifiers, car refrigerators, car DVDs, etc.) and car fuse clips. The fuse holder has the requirements of withstand current, withstand voltage, and fire rating. Generally, it needs to pass safety regulations such as UL CSA VDE ROHS and EU certification.
According to the classification of installed fuses, it can be divided into fuse holder and fuse holder
According to the material, it can be divided into plastic fuse holder, bakelite fuse holder
According to environmental protection, it can be divided into environmentally friendly fuse holders and non-environmental fuse holders.
According to the installation method: it can be divided into lead type fuse box and circuit board type fuse holder, instrument panel mounted fuse holder
Car fuses can be produced from 1A, 2A, 3A, 4A, 5A-40A and have different colors.
Commonly used models are (for applicable fuse tube size): 5×20mm fuse holder, 6×30mm fuse holder;
There are car fuse holders (suitable for insert models): small insert fuse holder, medium insert fuse holder, and large insert fuse holder.
The above are commonly used. The selection of fuse holders depends on their own suitability, mainly depending on the installation size, the size, shape and performance of the suitable fuse tube.
3. Improved structure of fuse holder
The improved structure of the fuse holder, especially the fuse holder with the status of the fuse and the resettable fuse need not be replaced. It includes: a first conducting body with several screw holes communicating with each other, each screw hole is screwed into an abutting screw; several second conducting bodies with a screw hole and an insertion hole communicating with each other body, each screw hole is screwed into an abutting screw; several are connected to the resettable fuse between the first conducting body and each second conducting body in an electrical connection mode; a top side is fixed with the first conducting body 1. A base with two conducting bodies; an upper cover covering the base; and a circuit board fixed on the upper cover and provided with several light-emitting components, which is connected with the first conducting body and each The second conductive body forms an electrical connection.
Fourth, the size of the conventional car fuse holder
According to the size of the fuse, it can be divided into large fuse holder, medium fuse holder and small fuse holder
You may know that car fuses are divided into several colors, so now the picture below shows a few of the many colors.
Different currents of car fuses are divided into different colors, and the thickness of the fuses is also different.
There are two important working parameters of automobile fuses, one is rated current; the other is rated voltage. When using, the corresponding fuse should be selected according to the current and voltage of the circuit.
In terms of structure, the general car fuse adopts the blade design. The car fuse has an engineering plastic shell, wrapped with a melt structure made of zinc, and the metal melt is connected to the pins.
Five, fuse holder detection method
The fuse safety standard, most of the miniature fuses have obtained the UL248 or IEC127 certification, this standard stipulates the following content, the rated current is energized for 1 hour without blowing.
The temperature rise when energized at the rated current. In the case of passing twice the rated current, it will fuse within 1 minute. When the rated breaking capacity is added, arcing or ignition will not occur continuously.
1. Temperature and voltage test: Use the power supply to apply voltage and current to the fuse. The fixed voltage is 220 volts, while the current is supplied from 2 amps, increasing at intervals of 2 amps every 4-5 minutes to 10 amps The temperature rises when the rated current is energized.
2. Fusing time test: use a stopwatch to record and observe 2 times the rated current and other current values, measure the time it takes to fuse, and fuse within 1 minute under the condition of 2 times the rated current, and take pictures before and after the fuse situation.
3. In the fuse sample test, whether it is 2 times the rated current or supplying other current values, three fuse samples of the same specification are tested to average the fuse time.
The above is the introduction of "size of automobile fuse holder". If you need to know more detailed information about fuse holder, please contact our manufacturer.