Housing assembly, compressor, and air conditioner

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Solution Overview

Problem

The weak mounting structure of temperature sensors in air conditioners leads to loosening and distorted temperature data, resulting in potential failures such as compressor wear and motor demagnetization due to inadequate protection from overheating.

Innovation Solution

A housing assembly with a fixing bracket that securely attaches a temperature sensor to the compressor housing, using a trapezoidal-shaped fixing portion and side plates to maintain contact and prevent loosening, ensuring accurate temperature detection and real-time feedback for compressor control.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of manufacture

If a simple mounting structure is used for the temperature sensor, then the device complexity is reduced and ease of manufacture is improved, but the reliability deteriorates as the temperature sensor becomes prone to loosening

Engineering Contradiction:
Improveease of manufactureVSAvoidreliability
Core Design Contradiction:
Ease of manufactureVSReliability

Solution Approach 1:

The mounting structure is divided into a fixing bracket with connection portions and a separate fixing portion that interfaces with the temperature sensor. This segmentation allows the connection portions to be firmly attached to the housing while the fixing portion provides a dedicated interface for the temperature sensor, improving reliability without significantly complicating manufacturing

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The fixing bracket acts as an intermediary component between the housing and the temperature sensor. It provides a stable mounting platform with connection portions attached to the housing and a fixing portion that secures the temperature sensor, thereby improving reliability while maintaining ease of manufacture through modular assembly

Inventive Principle:
Principle #24Intermediary (Mediator)

2Ease of operation

If the temperature sensor is loosely mounted, then the ease of operation is improved for installation and removal, but the measurement precision deteriorates due to distorted temperature data

Engineering Contradiction:
Improveease of operationVSAvoidmeasurement precision
Core Design Contradiction:
Ease of operationVSMeasurement precision

Solution Approach 1:

The fixing bracket provides localized firm fixation at the connection portions where it attaches to the housing, ensuring stable temperature measurement. The fixing portion with its specific geometry provides localized constraint for the temperature sensor, maintaining measurement precision while allowing ease of operation through standardized interfaces

Inventive Principle:
Principle #3Local quality

3Device complexity

If no fixing structure is provided for the temperature sensor, then the device complexity is reduced, but the stability of the object's composition deteriorates as the sensor becomes loose and detached

Engineering Contradiction:
Improvedevice complexityVSAvoidstability
Core Design Contradiction:
Device complexityVSStability of the object's composition

Solution Approach 1:

The fixing structure is segmented into connection portions for housing attachment and a fixing portion for sensor constraint. This segmentation adds minimal complexity while providing stable composition by ensuring the temperature sensor remains firmly positioned during operation

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The fixing bracket serves as an intermediary that stabilizes the temperature sensor's position. It maintains the stable composition of the sensor-housing assembly while keeping device complexity low through a simple bracket design with defined geometric constraints

Inventive Principle:
Principle #24Intermediary (Mediator)

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 solution effectively prevents temperature sensor loosening and ensures accurate temperature measurement, enabling precise control of the compressor operation and preventing failures like compressor wear and motor demagnetization.

Implementation Method 1

The temperature sensor abuts an outer wall of the housing... The temperature sensor can effectively detect the housing temperature of the compressor

Methodology Applied
Scientific EffectThermal conduction: Conduction (thermal)

Data Source

PatentUS20240027280A1Housing assembly, compressor, and air conditioner
Publication Date: 2024.01.25 GUANGDONG MEIZHI PRECISION MFG
  • US20240027280A1 patent drawing
  • US20240027280A1 patent drawing
  • US20240027280A1 patent drawing

AI summary

A housing assembly, a compressor and an air conditioner are provided. The housing assembly has a housing, a temperature sensor and a fixing bracket. The temperature sensor abuts an outer wall of the housing. The fixing bracket has a fixing portion and connection portions located on two sides of the fixing portion. The connection portions are fixedly connected to the housing. A mounting cavity is formed between the fixing portion and the housing. The temperature sensor is located in the mounting cavity. The fixing portion has a top plate and side plates connected to two sides of the top plate. An angle formed between the top plate and each of the side plates is an obtuse angle. Each of the top plate and the side plates abuts the temperature sensor.