Vehicular air-conditioning device

A vehicular air-conditioning device for a vehicle having an opening portion through which an inside and an outside of a passenger compartment communicate with each other, the opening portion being configured to open and close, the vehicular air-conditioning device comprising:

• an inside air temperature detector configured to detect an inside air temperature of the passenger compartment;
• an inside air-conditioning portion including
• a refrigeration cycle device in which refrigerant circulates, the refrigeration cycle device being configured to adjust a temperature of air in the passenger compartment, and
• a blower configured to send the air to the passenger compartment;
• and
• an air-conditioning controller, wherein
• the air-conditioning controller includes
• an auto control portion configured to perform an auto control to automatically change an operation of the inside air-conditioning portion based on the inside air temperature detected by the inside air temperature detector,
• an open signal detector configured to detect an open signal indicating that the opening portion is open,
• a thermal load determiner configured to determine whether a change of a thermal load on the passenger compartment exceeds an air-conditioning capacity of the auto control, and
• a power saving control portion configured to perform a power saving control to limit an increase of a power consumption of at least one of the refrigeration cycle device or the blower of the inside air-conditioning portion regardless of the inside air temperature when the open signal is detected and it is determined that the change of the thermal load on the passenger compartment exceeds the air-conditioning capacity of the auto control, wherein
• the power saving control portion is configured to maintain the power consumption of the refrigeration cycle device of the inside air-conditioning portion regardless of the inside air temperature in the power saving control.