The temperature control switch for the X-Trail's air conditioning is located on the air conditioning operation panel, while the temperature sensor is installed at the air intake position of the air conditioning system. In terms of air conditioning, the temperature controller is an electrical switch device that controls the temperature of the air-conditioned room. The temperature range controlled by the temperature controller in an air-conditioned room is generally between 18°C and 28°C. Below are the principles and functions of the automotive temperature control switch: 1. The automotive temperature control switch uses a high-quality disc-shaped bimetal strip as the temperature sampling element. The water temperature switch is installed at a sensitive location on the radiator to dynamically collect the temperature changes of the water inside the radiator. The principle is based on the deformation of the disc-shaped metal strip under temperature and its transient jumping at specific temperature points. This allows the two contacts to quickly connect, activating the fan to cool the water in the radiator, thereby providing safety protection for the car engine. 2. The operating range of the automotive temperature control switch is generally between 85°C and 105°C. When the coolant temperature rises further to 105°C, the high-speed contacts close due to the continued expansion of the wax, causing the radiator motor fan to operate at a high speed of 2400 r/min, thereby increasing the cooling intensity. 3. When the coolant temperature drops, the wax volume contracts, and the push rod retracts under the tension of the contacts, causing the contacts to disconnect. This achieves control over the radiator motor fan.
