Passenger Vehicle Ventilation Layout With Unified Warm-Cold Air Outlet
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Solution Overview
Problem
Existing passenger transport ventilation systems are complex and inefficient in terms of space usage, requiring high maintenance and lacking in effective temperature control.
Innovation Solution
A ventilation system with a single air outlet that functions as both warm and cold, utilizing a central air interface and supply air duct system, where air flow is directed through ceiling and floor outlets based on temperature needs, with active manipulation devices to optimize air distribution and minimize maintenance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If separate ventilation ducts are provided for warm and cold air, then temperature control precision is improved, but device complexity increases
Solution Approach 1:
The patent merges the warm air outlet and cold air outlet into a single air outlet structure. The air conditioning device has one air outlet that serves dual purposes: delivering warm air when heating is needed and cold air when cooling is needed, controlled by a flap device that directs air flow based on temperature requirements.
Solution Approach 2:
The single air outlet is designed to perform multiple functions by delivering both warm and cold air. The air conditioning device can operate in different modes (heating, cooling, ventilation) through one outlet structure, eliminating the need for separate dedicated outlets for each function.
2Measurement precision
If multiple air outlets are provided for warm and cold air, then temperature control is improved, but installation space increases
Solution Approach 1:
The patent combines what would traditionally be separate warm air outlets and cold air outlets into a single integrated air outlet structure. This merging reduces the total installation space required while maintaining the capability to deliver both warm and cold air to the interior.
3Measurement precision
If complex ventilation systems are used, then temperature control precision is improved, but maintenance requirements increase
Solution Approach 1:
By merging the ventilation system into a single outlet structure with a unified air conditioning device, the patent reduces the number of components that require maintenance. The simplified architecture with one outlet and one air conditioning device eliminates the need to maintain multiple separate systems.
Solution Approach 2:
The universal air outlet and air conditioning device design means that only one system needs to be maintained regardless of whether it is delivering warm or cold air. This multi-functionality reduces maintenance complexity compared to having separate dedicated systems for each function.
4Device complexity
If a single air outlet is used for both warm and cold air, then device complexity is reduced, but temperature control precision deteriorates
Solution Approach 1:
The patent introduces a flap device as an intermediary mechanism within the single air outlet. This flap acts as a mediator that precisely directs either warm or cold air through the single outlet based on temperature requirements, maintaining control precision despite the simplified single-outlet structure.
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 system efficiently provides heated or cooled air with minimal installation space, ensuring full functionality and reduced maintenance by directing air flows through targeted outlets, achieving over 90% volume flow through floor outlets for heated air and ceiling outlets for cooled air.
Implementation Method 1
an air conditioning device (21) with a warm air outlet (22) and a cold air outlet (23)
Implementation Method 2
an air conditioning device (21) with a warm air outlet (22) and a cold air outlet (23)
Implementation Method 3
The manipulation device (35) has at least one fan unit (36) which, when activated, promotes an air flow from the ceiling duct through the branch duct to the floor outlet
Data Source
Figure 1~2
AI summary
A passenger transport means (1) having a car body (6) and having an interior compartment (7). For the supply of air to the interior compartment, the passenger transport means has a ventilation device (20). Said ventilation device (20) is formed at least by an air-conditioning unit (21), a feed air channel system (30) for the feed of air (25, 26) into the interior compartment, and by a central air interface (24). Furthermore, an air outlet of the air-conditioning unit is connected to the central air interface, which forms the interface to the feed air channel system. In particular, the central air interface can serve for merging a concrete and separate cold-air outlet (23) and warm-air outlet (22), such that a combined air outlet is formed at the interface between feed air channel system and air-conditioning unit, that is to say at the central air interface. According to one embodiment, the feed air channel system has at least one ceiling channel (31), which is arranged in the ceiling region of the vehicle ceiling, at least one branch channel (33) which leads away from the ceiling channel, and at least one active manipulation device (35) for manipulating the air stream through the branch channel. The branch channel leads from the ceiling channel into a floor region of the vehicle floor, wherein the branch channel is equipped with a floor outlet (34) in the floor region. The active manipulation device is configured such that, by means thereof, an air stream through the branch channel can be assisted.