Outdoor Unit Control Board Layout for Easier Service Access
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Solution Overview
Problem
The existing outdoor unit of air conditioners has inefficient operation and assembly due to the placement of control boards, requiring removal of one board to inspect or repair another, and the divided electrical component units complicate maintenance and assembly.
Innovation Solution
The outdoor unit features a control unit casing with control boards arranged perpendicular to each other, where the forwardmost board is rotatable with its bottom as a fulcrum and can be stopped at a predetermined angle, allowing inspection and repair without removing adjacent boards and improving assembly efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of stationary object
If the first control board is disposed on the deep side of the electrical component box and the second control board is disposed on the forward side, then the electrical component box can be miniaturized, but the operation efficiency is kept low because the second control board needs to be removed to inspect or repair the first control board
Solution Approach 1:
The forwardmost control board is made rotatable about its bottom side as a fulcrum, allowing it to be rotated to the forward side and stopped at a predetermined angle. This dynamic configuration enables inspectors to access the deep-side control board without removing the forward-side board, thus improving operation efficiency while maintaining the miniaturized electrical component box structure
2Ease of operation
If the electrical component unit is divided into upper and lower sections with the second electrical component unit capable of opening/closing, then access to refrigerant circuit components is facilitated, but the assembly efficiency is kept low because two electrical component units need to be installed
Solution Approach 1:
The electrical component box is segmented into multiple control boards arranged at different depths, with the forwardmost board being rotatable. This segmentation allows the forward board to be rotated out of the way during maintenance operations, providing access to refrigerant circuit components while requiring only a single integrated electrical component box assembly, thereby improving assembly efficiency
3Ease of operation
If the electrical component unit is divided into upper and lower sections, then access to refrigerant circuit components is improved, but the structure becomes more complex and the second electrical component unit may move during maintenance operations
Solution Approach 1:
Instead of creating a separate movable electrical component unit, the invention makes the forwardmost control board within a single integrated unit rotatable about its bottom side. This controlled rotational movement provides the necessary access during maintenance while maintaining structural integrity and reducing overall device complexity compared to having multiple separate movable units
Data Source
AI summary
To improve operation efficiency and safety at the time of trial run after installation and inspection, an outdoor unit includes a casing, a box provided within the casing, a main control board which is disposed along a perpendicular direction within the casing and at least on a forward side and a deep side such that they overlap each other, a fan motor driving board and a noise filter board, wherein the main control board is provided to be rotatable to the forward side with its bottom side as a fulcrum point.