988971119 Chip Force Sensors Connector Socket Terminal

2. Composition of automobile circuit

Like ordinary circuits, the automotive circuit is also composed of power, load and intermediate links. The power supply in the car includes batteries and generators. Instructions and alarm lights, flashers are electric equipment that converts electrical energy into light energy; car speakers, beeurges, audio, etc. are electric equipment that converts electrical energy into sound energy; Electricity equipment; igniter and heater are electric equipment that converts electrical energy into heat energy. Other electrical equipment also includes instrument devices such as water temperature meters, oil pressure gauges, fuel goggles, speed meters, mileage gauges, anti -theft devices and electronic control systems. The intermediate links of the automotive circuit include a variety of power distribution control devices, car wiring beams and plugs. They play a role in connecting the wires in the circuit and connect the power supply and power equipment. Various relays, circuit switches, electrical control boxes, fuse device (insurance), etc. play a role in controlling and protecting automobile circuits.

3. Features of automobile circuits

Although the automotive circuit has a variety of functions and different structures, they all have the common characteristics below.

(1) Two power supply

There are two power supply provided on the car, namely batteries and generators. Electric energy required for automotive electricity equipment is provided by the battery and generator.

(2) Low pressure DC

The two power supply on the car provides DC power, and its power supply voltage is generally 12V or 24V. The rated voltage of automobile electrical equipment also has 12V and 24V. Generally, gasoline vehicles generally use 12V power, while heavy diesel vehicles mostly use 24V power.

(3) Electricity equipment parallel connection

The electric equipment in the car is parallel.

(4) Single -line system

Under normal circumstances, two wires are connected with two wires between electric equipment to form a loop. The electrical equipment on the car uses metal parts such as automotive engines, chassis or body as a common connection wire (commonly known as iron) for various electricity equipment. There is only one wire connection between the electric equipment and the power supply, which is called a single wire system. The current of any automotive circuit is departed from the positive electrode of the power supply. After the wire flows into the power equipment, the metal frame flows back to the negative electrode of the power supply to form a circuit.

The electrical instrument is also called an electrical measurement instrument. It is used to measure electromagnetic capacity such as current, voltage, electric power, electrical energy, resistance, capacitance, and inductance. The electrical instrument is the most used equipment in electrician measurement. During the car maintenance process, many faults need to be tested on the automotive circuit. The basic knowledge of understanding the common electrical instrument is the basis for mastering electronic electronic technology and conducting automotive circuit detection.

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