Air conditioner outdoor unit and air conditioner
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Solution Overview
Problem
In air conditioner outdoor units, the large volume of the compressor and tank group interferes with airflow, creating a stagnation region that negatively affects airflow circulation inside the cabinet.
Innovation Solution
The air conditioner outdoor unit is designed with a cabinet that includes a compressor assembly and a heat exchanger assembly, where the minimum distance between the compressor assembly and the fan is set to L, and the maximum size of the heat exchanger assembly is S, with L being greater than S/5, thereby increasing the airflow circulation space and reducing the influence of the stagnation region.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the compressor and tank group are provided inside the cabinet, then the air conditioner can achieve compact structure, but the large volume of the compressor and tank group will interfere with the airflow and form a stagnation region
Solution Approach 1:
The patent positions the compressor assembly at the bottom of the cabinet and the fan at the top, utilizing the vertical dimension to maximize airflow path length while maintaining compact horizontal footprint. This vertical arrangement allows airflow to travel from the front air inlet, past the heat exchanger assembly, beneath the compressor assembly, and out through the top air outlet, effectively using the height dimension to resolve the contradiction between compact volume and adequate airflow circulation.
2Length of stationary object
If the compressor assembly is positioned close to the fan, then the cabinet height can be reduced, but the airflow circulation space is limited and stagnation region influence is increased
Solution Approach 1:
The patent segments the internal cabinet space into distinct functional zones: the heat exchanger assembly occupies the front horizontal space, the compressor assembly is positioned at the bottom, and the fan is located at the top. This segmentation allows each component to be optimally positioned for its function while maintaining adequate airflow circulation space, resolving the contradiction between compact height and airflow efficiency.
3Productivity
If the heat exchanger assembly is arranged between the compressor assembly and the air inlet, then heat exchange efficiency is improved, but the available space for airflow circulation is reduced
Solution Approach 1:
The heat exchanger assembly is arranged to extend in the circumferential direction of the cabinet, utilizing the horizontal circumference dimension rather than competing for vertical airflow space. This allows the heat exchanger to achieve sufficient surface area for efficient heat exchange while the vertical dimension remains available for adequate airflow circulation from the front air inlet to the top air outlet.
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 design enhances airflow circulation and reduces the negative impact of the stagnation region, leading to improved heat exchange efficiency and smoother operation of the air conditioner outdoor unit.
Implementation Method 1
a fan being provided at the air outlet... an airflow circulation path is formed between the air inlet and the air outlet
Implementation Method 2
a heat exchanger assembly, which is provided inside the cabinet and located below the fan
Data Source
AI summary
An air conditioner outdoor unit includes a cabinet including an air outlet provided at a top of the cabinet and an air inlet, a fan provided at the air outlet, a compressor assembly provided inside the cabinet and located below the fan, and a heat exchanger assembly provided inside the cabinet and located below the fan. At least part of the heat exchanger assembly is arranged between the compressor assembly and the air inlet. A minimum distance L between the compressor assembly and the fan in a height direction of the cabinet and a maximum size S of the heat exchanger assembly in the height direction of the cabinet satisfy L>S/5.