Radiant AC Casing and Heat Exchanger for Draft-Free Temperature Control
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Solution Overview
Problem
Existing air conditioning systems using cabinet units suffer from poor user experience due to rapid temperature changes and continuous blowing of cold or hot air, leading to discomfort and noise issues.
Innovation Solution
The system incorporates a radiant heat dissipation casing acting as both a protective casing and a radiant heat sink, working in parallel with a built-in heat exchanger. This setup allows for three operation modes: simultaneous operation of both components for quick temperature adjustment, operation of the heat exchanger alone for precise control, and operation of the radiant heat dissipation casing alone for slow heat dissipation and maintaining a stable indoor temperature.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If the fan continues to blow air after the indoor temperature reaches the desired temperature, then the temperature control is maintained, but the indoor temperature changes too quickly and cold or hot air constantly blows to the user
Solution Approach 1:
The patent segments the heat dissipation function into two independent parts: the built-in heat exchanger and the radiant heat dissipation casing. This allows selective operation where the heat exchanger provides rapid cooling when needed, while the radiant casing provides gentle, continuous heat dissipation without direct air flow to the user, thus resolving the contradiction between temperature control and comfort.
Solution Approach 2:
The radiant heat dissipation casing acts as an intermediary between the heat exchanger and the user. Instead of cold or hot air directly blowing to the user, the casing radiates heat indirectly through its surface, providing temperature control without the harmful direct air flow effect.
2Temperature
If the fan is switched on and off to control temperature, then the temperature range is maintained, but noise is produced affecting user sleep
Solution Approach 1:
The radiant heat dissipation casing provides continuous, periodic heat dissipation without the need for fan switching. While the built-in heat exchanger operates periodically for rapid temperature adjustment, the radiant casing maintains steady-state temperature control without generating noise, thus resolving the contradiction between temperature range maintenance and noise reduction.
3Speed
If only the built-in heat exchanger is used for temperature control, then rapid temperature adjustment is achieved, but cold or hot air continuously blows affecting user comfort
Solution Approach 1:
The patent divides the temperature control function into two segments: the built-in heat exchanger for rapid temperature adjustment and the radiant heat dissipation casing for comfortable, indirect heat dissipation. This segmentation allows the system to achieve fast temperature response without continuously blowing air to the user, as the radiant casing takes over for maintenance phase.
Solution Approach 2:
The system uses partial action of the heat exchanger (only when rapid adjustment is needed) combined with the radiant casing for the remaining temperature control. This avoids the excessive continuous operation of the heat exchanger that would cause uncomfortable air flow, while still achieving the desired temperature adjustment speed when necessary.
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 enhances user comfort by preventing continuous air flow and noise, while allowing for flexible temperature control and energy-efficient operation.
Implementation Method 1
the radiant heat dissipation casing may cooperate with a built-in heat exchanger to exchange the heat together in order to adjust the indoor temperature quickly
Implementation Method 2
a built-in heat exchanger and a fan mounted in the radiant heat dissipation casing
Data Source
AI summary
An indoor unit comprises a built-in heat exchanger and a radiant heat dissipation casing, the radiant heat dissipation casing serving both as a protective casing for the indoor unit and as a radiant heat sink. The radiation heat dissipation casing is arranged in parallel with the built-in heat exchanger. When users need to quickly adjust the indoor temperature, they can switch on the radiant heat dissipation casing and the built-in heat exchanger at the same time, and the radiant heat dissipation casing and the built-in heat exchanger will exchange heat together to quickly adjust the indoor temperature. Users can also choose to separately use the built-in heat exchanger to adjust the indoor temperature to meet the needs of different users and operation conditions. After the indoor temperature reaches the preset temperature, users can choose to switch off the built-in heat exchanger and keep the radiant heat dissipation casing on.