Vehicular Air Conditioner Single Seat Concentration Mode
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Solution Overview
Problem
Vehicular air conditioners face challenges in energy saving and reducing flush in the face of occupants due to inefficient air distribution, and the difficulty in making air-conditioning cases common across different vehicles due to varying structures and components.
Innovation Solution
A vehicular air conditioner with a switching section and controller that adjusts between normal and single seat concentration modes to reduce power consumption and air distribution, using a heating heat exchanger with a cooling fluid to optimize energy use and prevent face flush by directing warm air effectively around the occupant's body.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If the outlet blows warm air toward the upper body of the occupant during heating, then the occupant's sensation of warmth is improved, but the warm air strikes against the face and causes flush in the face
Solution Approach 1:
The outlet is divided into multiple blowing direction control sections, each capable of independently adjusting the air blowing direction. This segmentation allows the warm air to be directed toward the upper body while avoiding direct contact with the face, thus improving warmth sensation without causing facial flush.
Solution Approach 2:
The outlet incorporates adjustable blowing direction control that can dynamically change the air flow direction based on operational conditions. This dynamic adjustment enables the system to optimize air distribution to prevent facial flush while maintaining effective heating of the occupant's upper body.
2Adaptability or versatility
If the air-conditioning case incorporates a door section for adjusting opening degree of multiple face opening sections independently, then the air conditioning can be adjusted independently between right and left sides, but the structure becomes complex and cost increases
Solution Approach 1:
Multiple door sections are combined into a single integrated door assembly that can be controlled independently for each face opening section. This merging approach reduces the overall number of separate components and simplifies the air-conditioning case structure while maintaining the capability for independent adjustment of air conditioning on the right and left sides.
3Productivity
If the blower operates at high power to blow air-conditioning wind from multiple outlets, then the air distribution coverage is improved, but the power consumption increases
Solution Approach 1:
The air conditioning system provides different air blowing amounts to different outlets based on local conditions. The controller selectively opens or closes specific face opening sections and adjusts the blowing amount for each outlet according to the actual air conditioning needs, rather than uniformly distributing air from all outlets. This localized control improves air distribution efficiency while reducing overall power consumption.
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
The solution achieves energy savings by reducing blower power consumption and maintaining occupant comfort through targeted air distribution, while allowing for independent adjustment of air-conditioning case openings without altering the case structure, thus enhancing fuel efficiency and reducing component costs.
Implementation Method 1
a heating heat exchanger with a cooling fluid to optimize energy use
Data Source
AI summary
When there is no occupant in seats other than a driver seat during a foot mode, an air-conditioning controller executes a single seat concentration mode to prevent blowing of warm air to a passenger seat and a backseat by closing foot outlets on a passenger seat side and a backseat side. In this case, in order to maintain an air volume blown from the foot outlet on a driver seat side when the controller changes the mode from the normal foot mode to the single seat concentration mode, the controller sets a blower level to be lower than in the case of the normal foot mode with respect to the same target blown air temperature.