Vehicle Air Conditioner Double-Layer Flow Front Rear Temperature Control
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Solution Overview
Problem
Conventional vehicle air conditioners cannot separately control temperatures for the front and rear seats, leading to an inconvenient indoor environment for passengers.
Innovation Solution
An air conditioner design with a double-layer flow system that includes separate air passageways and outlets for the front and rear seats, allowing for independent temperature control by partitioning the air-conditioning case and using cooling and heating heat exchangers to condition air before discharge through specific outlets.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a conventional single-layer air conditioning system is used, then the device complexity is low, but the ability to separately control front and rear seat temperatures is lost
Solution Approach 1:
The air conditioning case is divided into two separate air flow passageways (first and second passageways) that run independently from the heat exchangers to different outlet locations. This segmentation allows the system to provide different temperatures to front and rear seats while using a single integrated air conditioning unit, thus improving adaptability without proportionally increasing device complexity.
Solution Approach 2:
The single air conditioning system is designed to perform multiple functions by incorporating both a first outlet for the front seat and a second outlet for the rear seat. The cooling and heating heat exchangers serve both passageways simultaneously, enabling one device to provide independent climate control for multiple zones, thereby achieving separate temperature control capability without requiring completely separate air conditioning systems.
2Object-affected harmful factors
If outdoor air is introduced to defrost the window, then the defrosting function is improved, but the temperature of indoor air decreases
Solution Approach 1:
The air flow system is segmented into separate passageways where outdoor air can be directed specifically to the window defrost outlet without mixing with the indoor air supply passageway. This allows defrosting function to operate independently while maintaining indoor air temperature, as the cold outdoor air used for defrosting does not contaminate or cool the indoor air stream.
Solution Approach 2:
The first and second air flow passageways act as intermediaries that separate the defrosting air stream from the indoor air supply stream. By providing dedicated pathways, the system enables outdoor air to reach the window for defrosting while preventing it from mixing with and cooling the indoor air that is supplied to passengers.
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 effectively prevents frost, improves heating efficiency, and provides convenience by allowing separate temperature control for both the front and rear seats, minimizing the overall volume of the air conditioner while optimizing the arrangement of heat exchangers and flow paths.
Implementation Method 1
a cooling heat exchanger (3) for cooling air
Implementation Method 2
a heating heat exchanger (4) for heating air
Data Source
AI summary
Disclosed is an air conditioner for a vehicle. The present invention provides an air conditioner for a vehicle capable of introducing indoor air and outdoor air simultaneously or selectively by forming a double-layer flow in an air conditioner case and capable of separately controlling the temperatures of a front seat and a rear seat.