Ceiling Air Conditioner Vane and Control Box Water-Blocking Structure

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Solution Overview

Problem

Ceiling-type air conditioners face issues with non-uniform closure of air outlets, water ingress into control boxes, and cumbersome inspection processes due to motor placement and design limitations.

Innovation Solution

The air conditioner design incorporates a vane with bridges for uniform air outlet closure, water-blocking ribs to prevent water ingress, and inspection openings with hidden dismantling handles for improved aesthetics and maintenance access.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Device complexity

If the motor is installed only at the side area of the vane, then the structure is simplified, but the vane cannot uniformly close the air outlet throughout the entire range

Engineering Contradiction:
Improvemotor installation structureVSAvoidair outlet closure uniformity
Core Design Contradiction:
Device complexityVSManufacturing precision

Solution Approach 1:

The air outlet closure function is segmented into multiple independent vanes (first vane and second vane) that can be controlled separately. Each vane is driven by its own motor installed at different side areas, allowing independent adjustment and uniform closure across the entire air outlet range.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent introduces an asymmetric linkage mechanism where the first linkage and second linkage connect the two motors to the vanes in a non-symmetric arrangement. This asymmetric structure compensates for the non-uniform distribution of motors, enabling uniform force application and closure across the entire air outlet.

Inventive Principle:
Principle #4Asymmetry

2Ease of manufacture

If the control box is mounted directly on the base panel, then the installation is simple, but condensed water flows into the control box and reaches the control board

Engineering Contradiction:
Improvecontrol box installationVSAvoidcontrol board protection
Core Design Contradiction:
Ease of manufactureVSReliability

Solution Approach 1:

A waterproof seal (intermediary element) is introduced between the control box and the base panel. This seal acts as a mediator that maintains the simple mounting structure while preventing condensed water from penetrating into the control box and reaching the control board.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The waterproof sealing function is extracted as a separate component from the control box assembly. The seal is installed independently in the mounting interface, allowing the control box to maintain its simple structure while gaining protection against water ingress.

Inventive Principle:
Principle #2Taking out (Extraction)

3Stability of the object's composition

If the intake and discharge unit is permanently coupled to the body, then the structure is stable, but it is cumbersome to remove for inspection of refrigerant pipes and electric wires

Engineering Contradiction:
Improveintake and discharge unit couplingVSAvoidinspection accessibility
Core Design Contradiction:
Stability of the object's compositionVSEase of repair

Solution Approach 1:

The coupling between the intake and discharge unit and the body is made dynamic rather than fixed. The coupling mechanism allows the unit to be securely attached during normal operation for stability, but can be easily detached when inspection or repair is required, providing adaptability between stable operation and easy maintenance states.

Inventive Principle:
Principle #15Dynamics

Data Source

PatentUS10544947B2Air conditioner
Publication Date: 2020.01.28 LG ELECTRONICS INC
  • US10544947B2 patent drawing
  • US10544947B2 patent drawing
  • US10544947B2 patent drawing

AI summary

An air conditioner that includes a control box accommodating a control board and having an open surface, and a base panel having an air inlet and an air outlet, the control box being mounted on the base panel by seating the open surface thereof on the base panel, wherein the base panel includes a first water-blocking rib surrounding an outer surface of a lower edge defining the open surface of the control box so as to prevent water from flowing into the control box.