Wall-mounted indoor air conditioner unit

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Solution Overview

Problem

The existing structure of wall-mounted air conditioners lacks a stable direct assembly relationship between the cleaning assembly and the screen assembly, leading to issues such as misalignment, jamming, and abnormal noise during the washing process, which compromises the transmission reliability of the screen.

Innovation Solution

A fastening structure is introduced to securely connect the cleaning assembly and the screen assembly, improving their connection stability and the engaging stability of the gear and screen, thereby preventing defects like misalignment and jamming during the washing process.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If the cleaning assembly and screen assembly are mounted on the chassis without direct connection, then the installation flexibility is improved, but the connection stability and transmission reliability deteriorate due to misalignment and jamming

Engineering Contradiction:
Improveinstallation flexibilityVSAvoidtransmission reliability
Core Design Contradiction:
Adaptability or versatilityVSReliability

Solution Approach 1:

The invention introduces an intermediate connection structure that segments the connection path between the cleaning assembly and screen assembly. This intermediate structure acts as a buffer zone that allows independent positioning while maintaining stable gear engagement, thus preserving installation flexibility while improving transmission reliability.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent employs an intermediate connection mechanism (including connecting pieces and positioning structures) that mediates between the cleaning assembly and screen assembly. This intermediary structure ensures stable relative positioning and reliable gear meshing while allowing both assemblies to be independently mounted on the chassis, resolving the contradiction between flexibility and reliability.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Reliability

If the cleaning assembly and screen assembly are directly connected, then the connection stability is improved, but the device complexity increases due to additional fastening structures

Engineering Contradiction:
Improveconnection stabilityVSAvoidstructure complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The invention merges the connection functions into integrated fastening structures that combine multiple functions (positioning, securing, and alignment) into single components. This reduces the number of separate parts needed while maintaining connection stability, thus improving reliability without proportionally increasing device complexity.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The fastening structures designed in the patent serve multiple functions simultaneously: they provide mechanical connection, maintain precise positioning, and ensure proper gear alignment. This multi-functionality reduces the need for additional specialized components, achieving connection stability without excessive structural complexity.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Data Source

PatentEP3712516B1Wall-mounted indoor air conditioner unit
Publication Date: 2025.05.21 GD MIDEA AIR CONDITIONING EQUIP CO LTD
  • EP3712516B1 patent drawingFigure 1
  • EP3712516B1 patent drawingFigure 2
  • EP3712516B1 patent drawingFigure 3

AI summary

Disclosed is an indoor unit of a wall-mounted air conditioner, including: a chassis, a screen assembly, and a cleaning assembly disposed at one end of the screen assembly and connected with the screen assembly by a fastening structure; where the cleaning assembly is mounted on the chassis, or the screen assembly is mounted on the chassis, or the cleaning assembly and the screen assembly are both mounted on the chassis.