Air Conditioner Compressor Fixing Bracket for Sensor Mounting

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Solution Overview

Problem

Conventional air conditioners face challenges in accurately detecting the outlet temperature of the compressor due to the separate installation of the temperature sensor and hoist holder, which results in inaccurate temperature sensing and inefficient space utilization.

Innovation Solution

A fixing bracket is integrated onto the compressor's upper surface, incorporating a hanging hole for a hoist and a sensor holder to securely mount a temperature sensor, allowing direct contact for accurate temperature detection and efficient space utilization.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Device complexity

If the temperature sensor and hoist holder are installed separately on the compressor surface, then the structural complexity is reduced, but the temperature sensing precision deteriorates due to spacing issues

Engineering Contradiction:
Improvestructural complexityVSAvoidtemperature sensing precision
Core Design Contradiction:
Device complexityVSMeasurement precision

Solution Approach 1:

The patent combines the temperature sensor holder and hoist holder into a single integrated fixing bracket that is coupled to the compressor. This merging of functions allows the temperature sensor to be positioned in close proximity to the compressor surface for accurate temperature detection, while the hoist holder provides stable suspension. The integration resolves the contradiction by eliminating the need for separate mounting structures while achieving both structural simplicity and measurement precision.

Inventive Principle:
Principle #5Merging (Combining)

2Ease of manufacture

If the temperature sensor is spaced apart from the compressor surface, then the ease of installation is improved, but the measurement precision deteriorates due to inability to accurately detect outlet temperature

Engineering Contradiction:
Improveease of installationVSAvoidoutlet temperature detection accuracy
Core Design Contradiction:
Ease of manufactureVSMeasurement precision

Solution Approach 1:

The fixing bracket integrates both the temperature sensor mounting function and the hoist holder function into a single component. This allows the temperature sensor to be positioned directly adjacent to the compressor surface for accurate outlet temperature detection, while maintaining ease of installation through the unified structure. The bracket is designed to be coupled to the compressor in a straightforward manner, eliminating the need for separate mounting operations.

Inventive Principle:
Principle #5Merging (Combining)

3Adaptability or versatility

If separate holder structures are provided for temperature sensor and hoist, then the adaptability is improved, but the device complexity increases

Engineering Contradiction:
Improvemounting flexibilityVSAvoidnumber of components
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The fixing bracket is designed as a multi-functional component that simultaneously serves as both the temperature sensor holder and the hoist holder. This universal structure is coupled to the compressor and provides both mounting functionality for the temperature sensor and suspension functionality for the hoist. By making the fixing bracket universal, the patent reduces the number of separate components while maintaining the adaptability needed for both temperature sensing and hoisting operations.

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

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 integrated fixing bracket enables better hoisting, robust structure, and precise temperature sensing while minimizing interference from power terminals, enhancing the compressor's balance and space efficiency.

Implementation Method 1

a sensor holder defining a sensor space facing the surface or the upper surface of the compressor for receiving a temperature sensor therein to detect a temperature of the surface or the upper surface of the compressor

Methodology Applied
Scientific EffectThermal conduction: Conduction (thermal)

Data Source

PatentEP4644790A1Outdoor unit of air conditioner
Publication Date: 2025.11.05 LG ELECTRONICS INC
  • EP4644790A1 patent drawingFigure 1
  • EP4644790A1 patent drawingFigure 2
  • EP4644790A1 patent drawingFigure 3

AI summary

An outdoor unit of an air conditioner may include a compressor having a power terminal and a discharge port that protrudes from a surface or an upper surface thereof, and a fixing bracket coupled at a point on the surface or the upper surface of the compressor that is spaced apart from the power terminal and the discharge port. The fixing bracket may be provided with a hanging hole to which a hoist may be hooked and a sensor holder on which a temperature sensor may be mounted.