Internal unit for air conditioner
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Solution Overview
Problem
The existing ceiling embedded type indoor air conditioning units face challenges in thinning the body case due to the lateral arrangement of the control board, which increases the depth dimension while reducing the height, limiting the compactness and flexibility of the electric component box arrangement.
Innovation Solution
The control board is arranged obliquely within the electric component box, allowing for a smaller height dimension without lateral placement, enabling a more compact and flexible arrangement that reduces both the height and lateral dimensions of the electric component box, and facilitates easier maintenance through an opening in the lower surface.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of moving object
If the control board is arranged with long sides lateral (horizontal), then the height dimension of the electric component box becomes small, but the lateral dimension becomes larger
Solution Approach 1:
The control board is arranged at a slant with respect to the vertical direction, transitioning from a conventional horizontal layout to an inclined configuration. This dimensional change allows the control board to fit within a smaller height dimension while reducing the lateral dimension through optimized spatial arrangement, resolving the contradiction between minimizing height and minimizing lateral footprint.
2Length of moving object
If the control board is arranged with long sides lateral (horizontal), then the height dimension of the electric component box becomes small, but the depth dimension becomes larger
Solution Approach 1:
By arranging the control board at a slant angle rather than horizontally, the invention redistributes the spatial requirements across different dimensions. The inclined arrangement reduces the depth dimension needed while maintaining the minimized height dimension, effectively resolving the contradiction between height minimization and depth reduction.
3Length of moving object
If the control board is arranged at a slant, then the height and lateral dimensions are reduced, but maintenance access becomes more difficult
Solution Approach 1:
A maintenance hole is provided in the electric component box to serve as an intermediary access point to the control board. This allows technicians to reach and service the control board components through the hole without requiring complete disassembly of the electric component box, thereby maintaining ease of maintenance while enabling the compact slanted arrangement that reduces height and lateral dimensions.
Data Source
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AI summary
There is provided an indoor unit for an air conditioning device enabling thinning of a body case. The indoor unit is an indoor unit for an air conditioning device in which a fan (19) and an electric component box (59) are provided inside a body case (31) installed in a ceiling (30), and a control board (60) to control electric parts including the fan (19) is contained in this electric component box (59), wherein an opening (72) for maintenance is provided in a lower surface of the electric component box (59), and the control board (60) is arranged at a slant with respect to a vertical direction so that a mounting surface (80a) in the control board (60) is arranged obliquely downward.