Total heat ventilation machine
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Solution Overview
Problem
Existing full-heat fresh air blowers have bulky designs due to complex air duct structures, leading to increased wind resistance, airflow disturbances, and reduced control accuracy, which limits their performance and user experience.
Innovation Solution
A full-heat fresh air blower design featuring a bypass air duct arranged peripherally around the full heat exchange core, with a streamlined L-shaped structure, allows for reduced wind resistance, increased discharge efficiency, and a compact, miniaturized design, along with strategically placed dampers to facilitate multiple working modes and improve airflow circulation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a complex air duct structure is used to achieve multiple working modes, then the adaptability is improved, but the device complexity increases and the volume increases
Solution Approach 1:
The air duct system is divided into independent segments: fresh air duct, return air duct, and bypass duct, each with dedicated dampers (first damper, second damper, third damper) that can be independently controlled to achieve different working modes without requiring a completely complex integrated structure
Solution Approach 2:
The air duct structure incorporates dynamically adjustable dampers that can change the flow paths in real-time, allowing the system to switch between full heat exchange mode and bypass mode based on temperature differences, providing adaptability without permanent complex structural configurations
2Adaptability or versatility
If a complex air duct structure is used to achieve multiple working modes, then the adaptability is improved, but the volume of the device increases
Solution Approach 1:
The bypass duct is arranged peripherally around the full heat exchange core, with the third damper positioned at the corner of the L-shaped bypass duct, creating a nested configuration where the bypass system utilizes the peripheral space of the heat exchange core, thereby reducing overall device volume while maintaining multiple working modes capability
3Device complexity
If a simple air duct structure is used, then the device complexity is reduced, but the adaptability decreases
Solution Approach 1:
The air duct system incorporates dynamically adjustable dampers that can change the flow paths in real-time, allowing the system to switch between full heat exchange mode and bypass mode based on temperature differences, providing adaptability without permanent complex structural configurations
4Device complexity
If the bypass air duct is arranged above or below the full heat exchange core, then the structure is simplified, but the wind resistance increases and discharge efficiency decreases
Solution Approach 1:
The bypass duct is arranged in a peripheral horizontal configuration around the heat exchange core rather than vertically above or below it, utilizing the lateral space to create a streamlined flow path that reduces wind resistance and improves discharge efficiency while maintaining structural simplicity
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 design enhances discharge efficiency, reduces noise, and improves control accuracy, enabling efficient air supply and multiple working modes while minimizing the blower's volume and weight, resulting in a more user-friendly and efficient operation.
Implementation Method 1
outdoor fresh air can exchange heat with exhausted air from a room to recover the heat within the full-heat exchange core
Data Source
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AI summary
A total heat ventilation machine (1), which solves the problem of bulky ventilation machines caused by the irrational design of an air duct structure of the existing ventilation machines, and comprises: a ventilation duct enabling the communication between an outdoor air inlet (121) and an indoor air outlet (124); an air return duct enabling the communication between an indoor air inlet (123) and an outdoor air outlet (122); a total heat exchange core (15), comprising a ventilation channel and an air return channel which are capable of performing heat exchange, the ventilation channel being provided within the ventilation duct or forming a part of the ventilation duct, and the air return channel being provided within the air return duct or forming a part of the air return duct; and a bypass air duct (126), the bypass air duct being in communication with the indoor air inlet (123) and the outdoor air outlet (122), and being provided therein with a first air door (18) for opening or closing the bypass air duct (126), and the bypass air duct (126) being provided at the periphery of the total heat exchange core (15). The total heat ventilation machine (1) can reduce the air resistance generated during the discharge of returned air, and can make full use of the inner space of the ventilation machine, realizing the design of a lightweight and miniaturized ventilation machine.