SISTEM PENDINGIN, PART 6: DIAGRAM KELISTRIKAN KIPAS PENDINGIN ELEKTRIK

Summary

This video explains the functioning of an electric fan control system used in vehicle cooling mechanisms. It covers the key components such as the thermoswitch, relay, motor, generator, and battery, highlighting their roles in regulating engine temperature. The thermoswitch activates the relay when the temperature reaches a set threshold (100°C), powering the fan motor to cool the radiator. The system turns off once the temperature drops, ensuring optimal engine performance. The video also emphasizes how these components interact to ensure the efficient operation of the cooling system.

Takeaways

• 😀 The cooling fan system in vehicles uses electrical components to regulate temperature and keep the engine from overheating.
• 😀 The thermoswitch acts as a temperature-sensitive switch, turning on the fan when the radiator temperature exceeds 100°C.
• 😀 The relay in the system functions as an electromagnetic switch that controls the flow of electricity to the motor, activating the fan.
• 😀 The generator produces electrical energy from mechanical motion to power the system, similar to how a dynamo works.
• 😀 The battery provides electrical power to the system and is recharged by the generator as the vehicle operates.
• 😀 The ignition switch (kunci kontak) has multiple positions: 'IG' for ignition, 'AC' for accessories, and 'ST' for starting the engine.
• 😀 The relay has four terminals: two for incoming power (30 and 85), one for outgoing power to the motor (87), and one for grounding (86).
• 😀 When the thermoswitch detects a temperature above the set threshold (e.g., 100°C), it closes the circuit, activating the relay and fan motor.
• 😀 The motor receives electrical current through the relay, which turns it on, causing the fan to spin and cool the radiator.
• 😀 Once the radiator temperature falls below the threshold set by the thermoswitch, the circuit is broken, deactivating the fan and stopping the cooling process.

Q & A

What is the main topic discussed in the video script?

The video discusses the working principles and electrical diagram of a cooling fan system in vehicles, specifically focusing on the electric fan control and its components.

What is the function of a thermo switch in the cooling system?

The thermo switch acts as a temperature-sensitive switch that connects or disconnects the electrical current based on the temperature it detects. When the temperature reaches 100°C, it allows the current to flow, turning the fan on.

How does the thermo switch differ from a regular electrical switch?

Unlike a regular switch that is manually controlled, a thermo switch is activated based on temperature. It connects or disconnects the current when a specific temperature threshold is reached, unlike a regular switch that responds to manual pressing.

What role does the generator play in the electrical system described in the video?

The generator converts mechanical energy (from the engine's rotation) into electrical energy, which is used to charge the battery and power various electrical components, including the cooling fan system.

What is the purpose of a relay in the cooling system?

The relay serves as a shortcut for electrical flow, allowing for a more efficient connection between the power source and the cooling fan motor by switching on the fan when the thermo switch activates, based on the temperature.

How does the relay work in the context of the cooling fan system?

When the thermo switch detects a temperature above the threshold (100°C), it closes the circuit, which activates the relay. The relay then allows a large current to flow from the generator to the motor, powering the fan.

What happens when the temperature falls below the threshold set by the thermo switch?

When the temperature falls below the threshold (100°C), the thermo switch opens the circuit, which deactivates the relay, cutting off the current to the fan motor and stopping the fan.

What is the significance of the ground connection in the cooling fan system?

The ground connection completes the circuit, allowing current to flow from the power source (generator or battery) through the relay and to the motor, which is essential for the fan to function properly.

What is the relationship between the ignition switch and the cooling fan control?

The ignition switch controls the flow of electricity to various vehicle systems. When the ignition is turned on (in the 'IG' position), it enables the electrical components like the cooling fan system to function, depending on other triggers like the thermo switch.

Why is it important for the system to have a fuse, as mentioned in the video?

The fuse protects the electrical system by breaking the circuit if there is a short circuit or an overload, preventing damage to other components and ensuring the safety of the vehicle's electrical system.