Vehicle Air Conditioning Module Dash Panel Integration
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Solution Overview
Problem
Conventional vehicle air conditioning systems suffer from increased noise and vibration, and space constraints due to the mounting of air-conditioning cases and blowers inside the vehicle, which also require multiple through holes in the dash panel for air discharge and intake.
Innovation Solution
The air conditioning system is designed with the air-conditioning module mounted at the engine room side and a distribution duct at the interior side, sharing a single through hole in the dash panel, with the blower unit and evaporator/condenser passageways arranged vertically to reduce noise and maximize interior space, and a bottle neck structure for efficient air mixing and discharge.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the air-conditioning case and blower are mounted inside the vehicle interior, then the air conditioning system can be easily installed, but the interior space is reduced and noise and vibration increase
Solution Approach 1:
The air-conditioning case and blower are extracted from the vehicle interior and relocated to the engine room. This extraction resolves the contradiction by removing the noisy and space-consuming components from the passenger compartment, thereby increasing interior space and reducing noise while maintaining installation feasibility through the dash panel opening.
2Device complexity
If the air-conditioning case and blower are mounted inside the vehicle interior, then the system structure is simplified, but noise and vibration increase
Solution Approach 1:
The noise-generating components (air-conditioning case and blower) are extracted from the vehicle interior and placed in the engine room. This maintains the system's structural simplicity while effectively isolating the noise and vibration from the passenger compartment, thus resolving the contradiction between structural simplicity and noise reduction.
3Reliability
If multiple through holes are formed in the dash panel for air discharge and intake, then the air flow requirements are met, but the installation complexity increases
Solution Approach 1:
The single opening in the dash panel is designed to serve multiple functions: it accommodates the air-conditioning case, allows air intake, and provides air discharge pathways. This multi-functional design resolves the contradiction by reducing the number of separate openings needed while still meeting all air flow requirements, thereby simplifying installation.
4Object-affected harmful factors
If the air-conditioning case is relocated to the engine room, then noise and vibration are reduced, but the installation requires modification
Solution Approach 1:
The distribution duct acts as an intermediary component that connects the air-conditioning case in the engine room to the vehicle interior. This intermediary structure enables the relocation of noisy components to the engine room while maintaining proper air distribution to the interior, thus resolving the contradiction between noise reduction and installation feasibility.
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 configuration reduces noise and vibration, optimizes interior space, and simplifies installation by using a single through hole, enhancing assemblability and reducing weight and installation costs while maintaining effective air conditioning performance.
Implementation Method 1
an evaporator 4 for exchanging heat between the liquefied refrigerant of low pressure throttled by the expansion valve 3 and air blown to the interior of the vehicle and evaporating the refrigerant to cool the air discharged to the interior of the vehicle
Implementation Method 2
the condenser 2 condenses the vapor-phase refrigerant into liquid-phase refrigerant of high-temperature and high-pressure by exchanging heat with outdoor air
Implementation Method 3
the liquid-phase refrigerant of high-temperature and high-pressure sent from the condenser 2 rapidly expands by a throttling action of the expansion valve 3
Data Source
Figure 1
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Figure 3
AI summary
Disclosed herein is an air conditioning system for a vehicle which includes an air-conditioning module having an air-conditioning case (110), which has a cold air passageway (111) and a warm air passageway (112) partitioned from each other, and a blower unit (130), and an indoor air inflow duct (143) for introducing indoor air of the interior of the vehicle into the blower unit (130), wherein an outlet (110b) of the air-conditioning case (110) and an inlet (143a) of the indoor air inflow duct (143) are arranged to be adjacent to each other, so that the air conditioning system for a vehicle can be installed through just one through hole part (310) formed in a dash panel (300), thereby enhancing assemblability and reducing weight and an installation cost.