Indoor unit and air conditioner
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Solution Overview
Problem
The existing air conditioning systems face difficulties in mounting the attachment plate over the refrigerant pipe connection part due to repulsion from the heat insulating material, leading to misalignment and gaps, which compromises the sealing and insulation efficiency.
Innovation Solution
An L-shaped attachment plate is used to close the opening hole for the refrigerant pipe connection part, effectively suppressing repulsion and ensuring proper alignment and sealing without gaps, thereby enhancing the heat insulation effect.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If a heat insulating material is mounted onto the refrigerant pipe connection part, then heat insulation performance is improved, but mounting precision of the attachment plate deteriorates due to repulsion
Solution Approach 1:
The opening hole for pipe is divided into two surfaces (first side surface and second side surface), and the attachment plate is correspondingly segmented into multiple planes including an L-shaped configuration. This segmentation allows the attachment plate to adapt to the repulsion from heat insulating material on different surfaces independently, maintaining mounting precision while preserving heat insulation performance.
Solution Approach 2:
The attachment plate extends into multiple dimensions with planes corresponding to both the first side surface and second side surface of the opening hole for pipe. This multi-dimensional configuration enables the attachment plate to compensate for repulsion forces acting in different directions, ensuring proper alignment and sealing despite the presence of heat insulating material.
2Reliability
If the opening hole for pipe is sealed with an attachment plate, then air leakage is prevented, but mounting difficulty increases due to misalignment caused by heat insulating material repulsion
Solution Approach 1:
The attachment plate is designed with multiple planes corresponding to different surfaces of the opening hole for pipe. This segmentation allows each plane to be independently positioned and secured, enabling reliable sealing while simplifying the mounting process by reducing misalignment issues caused by heat insulating material repulsion.
Solution Approach 2:
The multi-plane configuration of the attachment plate, extending across different dimensions to match the L-shaped opening hole structure, provides multiple contact surfaces for secure mounting. This dimensional approach ensures reliable sealing while making the mounting operation easier by distributing the sealing function across multiple planes.
3Loss of energy
If the opening hole for pipe is made equal to or smaller than the refrigerant pipe connection part, then heat insulation efficiency is improved, but mounting of the attachment plate becomes difficult
Solution Approach 1:
The opening hole for pipe is segmented into two surfaces (first side surface and second side surface), allowing the attachment plate to be mounted in a segmented manner corresponding to each surface. This segmentation enables the opening hole to remain small for heat insulation efficiency while facilitating easier mounting by distributing the attachment process across multiple surfaces.
Solution Approach 2:
The attachment plate utilizes multiple dimensions with planes corresponding to both the first side surface and second side surface of the opening hole. This multi-dimensional approach allows the opening hole to maintain a compact size for heat insulation while providing multiple mounting surfaces that simplify the attachment process.
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
The L-shaped attachment plate facilitates easy mounting and sealing, reducing misalignment and air leakage, and improves the heat insulation performance by eliminating gaps between the housing and the attachment plate.
Implementation Method 1
a heat insulating material, such as an insulator, is mounted onto the refrigerant pipe connection part
Data Source
Figure 1
Figure 2
Figure 3~4
AI summary
An indoor unit includes a main body unit including a housing having an opening hole for pipe formed on a part of a side surface of the main body unit, a refrigerant pipe connection part projecting from inside to outside of the housing through the opening hole for pipe, and an attachment plate holding and fixing the refrigerant pipe connection part together with the housing to close the opening hole for pipe. The opening hole for pipe is formed over a first side surface on a side of the housing from which the refrigerant pipe connection part projects and a second side surface adjacent to the first side surface, and the attachment plate has an L shape including planes corresponding to the opening hole for pipe over the first side surface and the second side surface.