Ventilation rooftop air-conditioning system
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Solution Overview
Problem
Conventional rooftop air-conditioners and ventilation devices in vehicles occupy excessive space, incur high installation and maintenance costs due to separate units, and require separate motors and control systems, leading to layout conflicts and increased complexity.
Innovation Solution
A combined ventilation rooftop air-conditioning system integrating temperature regulation and air purification functions, featuring a housing unit with separate circulation and ventilation channels, a reversible air blower unit, and an air-conditioning unit with an evaporator, allowing for ventilation and circulation modes, and sharing a single air blower unit to reduce space and costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If rooftop air-conditioner and ventilation device are installed separately, then each device can function independently, but installation space increases and layout conflicts occur
Solution Approach 1:
The patent combines the rooftop air-conditioner and ventilation device into a single integrated unit, merging their functions while sharing common components such as the air blower unit, housing, and control systems. This reduces the total installation space and eliminates layout conflicts that would occur with separate devices.
Solution Approach 2:
The integrated system is designed to perform multiple functions - both air conditioning (cooling/heating) and ventilation (air circulation/filtration) - within a single device. The system can operate in different modes (circulation mode and ventilation mode) by controlling the air blower unit, providing universal functionality without requiring separate dedicated devices.
2Reliability
If separate motors and control units are used for each device, then each device operates independently, but manufacturing and maintenance costs increase
Solution Approach 1:
The patent merges the motor and control unit resources between the air-conditioning and ventilation functions. A single air blower unit with one motor serves both the circulation channel (for air conditioning) and the ventilation channel (for ventilation), eliminating the need for duplicate motors and control systems, thereby reducing manufacturing and maintenance costs.
Solution Approach 2:
The control system is designed to universally manage both air-conditioning and ventilation operations through a single interface. The controller can switch between circulation mode and ventilation mode, and regulate the single air blower unit to perform both functions, reducing the complexity and cost of having separate control systems.
3Reliability
If separate devices are installed, then each device has dedicated components, but device complexity and installation difficulty increase
Solution Approach 1:
The patent combines the air-conditioning and ventilation systems into a single integrated unit with shared components including the housing, air blower unit, evaporator, and control system. This merging reduces the overall number of components and simplifies installation while maintaining the functional integrity of both systems through dedicated channels and mode selection.
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 integrated system minimizes space occupation, lowers costs, and enhances user experience by simplifying installation and maintenance, while effectively regulating temperature and purifying air with optimized airflow paths and filtration.
Implementation Method 1
the rooftop air-conditioner makes the air in the interior of the vehicle circulate and pass through the evaporator, so as to quickly cool or heat the interior
Implementation Method 2
an air blower unit disposed between the upper vent and the lower air vent
Data Source
AI summary
A ventilation rooftop air-conditioning system includes a housing unit, an air blower unit and an air-conditioning unit, wherein the housing unit includes a main body and a lid body, and a fixing element is disposed in the interior of the main body, and the interior of the main body is divided into a circulation channel and a ventilation channel by the fixing element, and an evaporator is disposed on the fixing element; wherein the ventilation rooftop air-conditioning system has a ventilation mode in which air flows in the ventilation channel and does not pass through the evaporator and a circulation mode in which air passes through the circulation channel, the evaporator and the ventilation channel in turn.