Vehicle Air Conditioner Console Bypass Passageway
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Solution Overview
Problem
Conventional vehicle air conditioners face challenges in independently controlling air conditioning for four-way zones, leading to inefficient cooling performance due to heat from the heater core affecting rear seat console vents during full cooling modes.
Innovation Solution
The air conditioner design includes a console side cool air bypass passageway under the heater core, a leaking warm air discharging passageway to isolate the bypass passageway from the warm air passageway, and auxiliary temperature adjusting doors to prevent warm air leakage, ensuring cool air is not heated by the heater core and maintaining effective cooling performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If the evaporator unit and heater unit are integrally formed to ensure efficient space use, then the space utilization is improved, but the cooling performance deteriorates due to warm air leakage affecting the rear seat console vent during full cooling mode
Solution Approach 1:
The air conditioner casing is divided into left and right portions with separate air passageways for each side. The left air passageway supplies air to the left rear seat console vent, and the right air passageway supplies air to the right rear seat console vent. This segmentation allows independent temperature control for each rear seat zone, preventing warm air from the heater core from affecting the cool air supply to the rear seats during cooling mode.
Solution Approach 2:
Different air passageways are provided for different zones (front seats, rear seats, left side, right side) with independent temperature adjusting doors. The rear seat console vents are positioned to receive air from dedicated passageways that can be independently controlled, ensuring that each zone has customized air conditioning quality appropriate to its specific requirements.
2Temperature
If the rear seat console vent is positioned to receive air from the cool air passageway, then the cooling performance is improved, but the device complexity increases due to additional passageways and temperature adjusting doors
Solution Approach 1:
The left and right air passageways are integrated into a single air conditioner casing, and the heater core is positioned to serve both sides. The mode doors and temperature adjusting doors are integrated into a coordinated control system that manages all air passageways simultaneously, reducing the overall complexity compared to having completely separate systems for each zone.
Solution Approach 2:
The heater core serves multiple functions: it can heat air for the front seats, heat air for the rear seats, or be bypassed during cooling mode. The mode doors and temperature adjusting doors are designed to control multiple air passageways with a single component, allowing one door to regulate airflow to multiple zones simultaneously, thereby reducing the total number of components needed.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This design allows for independent air conditioning control in four-way zones, enhancing cooling performance by preventing warm air leakage and maintaining cool air quality, while reducing the complexity of temperature adjustment mechanisms.
Implementation Method 1
the air that is blown by the blower is passed through the surface of the evaporator E and heat-exchanged to refrigerant flowing the interior of the evaporator E. As a result, the air is changed into cool air
Implementation Method 2
the air that is blown by the blower is passed toward the heater core H through the warm air passageway P2 and is heat-exchanged into cooling water flowing the interior of the heater core H. Finally, the warm air is discharged
Data Source
AI summary
A vehicle air conditioner casing has defrost, face, and front seat floor vents variably communicating with a mixing chamber. Air passageways in the casing include an evaporator and heater core. A rear seat console vent communicates with a warm air passageway including the heater core and a cool air passageway through a console side cool air bypass passageway on the casing bottom surface, under the heater core. A front seat temperature adjusting door adjusts variably opens cool air passageway outlets and the warm air passageway with respect to the mixing chamber. A rear seat main temperature adjusting door variably opens warm air passageway inlets and the console side cool air bypass passageway. A rear seat auxiliary temperature variably adjusts the openings of warm air passageway outlets and the console cool air bypass passageway with respect to the rear seat console vent.