Air Conditioner Filter Installation Using Inclined Fan Guard Guide
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Solution Overview
Problem
Operators face difficulties in easily installing filters on air-conditioning apparatuses due to installation location, depth dimension, and position constraints, particularly when the air inlet is at the lower face and the apparatus is installed at a high position or near a window, limiting visual access and space for filter engagement.
Innovation Solution
The air-conditioning apparatus features a fan guard installed on the bottom with a gap between it and the housing, inclined to narrow towards the inward portion, allowing the filter to be easily inserted and guided for installation, even in situations where the inward portion cannot be visually checked.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the air inlet is provided at the lower face of the housing and the apparatus is installed at a high position or near a window, then the installation flexibility is improved, but the operator cannot easily visually check the upper face of the housing to which the filter is attached
Solution Approach 1:
The fan guard serves as an intermediary guide structure that facilitates filter installation. The inclined surface of the fan guard acts as a mediator between the operator and the filter, guiding the filter into the correct position on the air inlet without requiring the operator to visually check the upper face of the housing.
Solution Approach 2:
The solution transitions from a two-dimensional visual checking approach to a three-dimensional tactile guidance approach. The inclined fan guard provides a physical guide that directs the filter along a specific path, allowing installation through spatial positioning rather than visual verification.
2Adaptability or versatility
If the air inlet is provided at the lower face of the housing, then the installation height limitation is reduced, but the space necessary for the operator to check the position of a portion to be engaged cannot be ensured
Solution Approach 1:
The fan guard is pre-installed on the housing with an inclined surface that prepares the path for filter installation. This preliminary action creates a built-in guidance system that eliminates the need for the operator to check engagement positions during the installation process.
Solution Approach 2:
The inclined surface of the fan guard acts as an intermediary guide that facilitates the engagement of the filter with the air inlet. It provides tactile feedback and physical direction, serving as a mediator between the filter and the engagement portion.
3Reliability
If the filter is mounted on the upper face of the housing close to the back face, then the filter effectiveness is maintained, but the operator cannot easily access and visually check the filter position
Solution Approach 1:
The fan guard serves as a guide structure that mediates the installation process. Its inclined surface extends toward the back face, providing continuous tactile guidance that allows the operator to install the filter at the optimal position near the back face without visual verification.
Solution Approach 2:
The solution moves from visual verification in the horizontal plane to tactile guidance along the inclined surface of the fan guard. This dimensional transition allows the operator to reach and install the filter at positions that would otherwise be inaccessible for visual checking.
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 enables easy filter installation and maintenance by using the fan guard as a guide, facilitating insertion and engagement without requiring visual access to the inward portion, thus addressing the challenges of constrained installation spaces.
Implementation Method 1
a heat exchanger disposed in the air passage and configured to cause air and a heat medium to exchange heat
Implementation Method 2
an air-sending device installed in the housing and configured to generate an air flow in the air passage
Data Source
Figure 1
Figure 2~3
Figure 4~5
AI summary
An air-conditioning apparatus includes a housing having an opening port and an air passage formed in the housing and connected to the opening port; an air-sending device installed in the housing and configured to generate an air flow in the air passage; a heat exchanger disposed in the air passage and configured to cause air and a heat medium to exchange heat; a fan guard installed on the housing with a gap defined between the fan guard and a face of the housing in which the opening port is provided, the fan guard preventing a contact with the air-sending device; and a filter attached to the housing such that the filter is inserted into the gap, the filter covering the opening port. The fan guard is installed on the housing such that the gap is narrowed toward an inward portion in an insertion direction into which the filter is inserted.