Which Symbol Represents the Front Windshield Defogger?

[GrantFitz]

Introduction to the Front Windshield Defogger Symbol: The front windshield defogger symbol is represented by three upward-curving arrows enclosed within a square frame. The defogger button is typically located at the bottom left corner of the air conditioning control panel. When the windshield fogs up, simply press the defogger button to activate the air conditioning for defogging. Below is an explanation of how car defogging works: 1. Physical Principle of Cold Air Defogging: The liquid refrigerant absorbs heat from the cooled object in the evaporator, vaporizing into low-temperature, low-pressure steam, which is then drawn into the compressor, compressed into high-temperature, high-pressure steam, and discharged into the condenser. 2. Physical Principle of Hot Air Defogging: When gas containing mist flows through the defogger at a certain speed, due to the inertia of the gas, the large droplets formed by the collision of mist with the wave plates separate from the surface of the wave plates as the gravity of the droplets exceeds the combined forces of gas lift and liquid surface tension.