Shell assembly, compressor, and air conditioner
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Solution Overview
Problem
The weak mounting structure of temperature sensors in compressors leads to loose fittings, resulting in distorted temperature data and potential failures such as wear of the pump body and demagnetization of the motor in air conditioners.
Innovation Solution
A housing assembly with a fixing bracket that securely attaches a temperature sensor to the compressor housing, utilizing a trapezoidal-shaped fixing portion with an offset opening slot and elastic deformation to maintain consistent contact, ensuring accurate temperature detection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a simple mounting structure is used for the temperature sensor, then the device complexity is reduced, but the temperature sensor becomes loose easily leading to measurement inaccuracy
Solution Approach 1:
The mounting structure is divided into a fixing bracket with connection portions and a separate fixing portion that contacts the temperature sensor. The connection portions are fixedly connected to the housing while the fixing portion elastically contacts the temperature sensor, creating a segmented structure that provides both stability and measurement accuracy without excessive complexity.
Solution Approach 2:
The fixing bracket has different structural characteristics in different regions: the connection portions provide rigid fixed connections to the housing for structural stability, while the fixing portion provides elastic contact with the temperature sensor for accurate measurement. This local differentiation of structural quality resolves the contradiction between simple mounting and accurate measurement.
2Measurement precision
If the temperature sensor is tightly fixed to the housing, then measurement accuracy is improved, but the mounting structure becomes more complex
Solution Approach 1:
The fixing portion is designed with elastic properties that allow it to deform and adapt to the temperature sensor. By changing the physical state from rigid to elastic, the structure achieves tight fixation for accurate measurement while maintaining relatively simple construction through the use of elastic deformation rather than complex mechanical fastening.
3Ease of manufacture
If the temperature sensor mounting is simplified, then ease of manufacture is improved, but the sensor comes loose leading to component failures
Solution Approach 1:
The elastic fixing portion automatically adjusts and maintains contact with the temperature sensor through its own elastic deformation. The structure self-regulates to keep the sensor securely mounted without requiring complex external fastening mechanisms, thereby achieving both ease of manufacture and high reliability through the self-service capability of the elastic component.
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 ensures the temperature sensor remains tightly attached to the housing, providing accurate temperature measurements for precise compressor control, preventing failures and ensuring reliable operation.
Implementation Method 1
The fixing portion has an inlet end to allow the temperature sensor to be mounted in the mounting cavity. The fixing portion comprises a top plate and two side plates connected to two sides of the top plate. An angle formed between the top plate and each of the two side plates is an obtuse angle.
Data Source
Figure 1
Figure 2
Figure 3
AI summary
Provided are a housing assembly, a compressor, and an air conditioner. The housing assembly includes a housing (100), a temperature sensor (200), and a fixing bracket (300). The temperature sensor (200) abuts with an outer wall of the housing (100). The fixing bracket (300) includes a fixing portion (310) and connection portions (320) located on two sides of the fixing portion (310). Each of the connection portions (320) is fixedly connected to the housing (100). A mounting cavity (301) is formed between the fixing portion (310) and the housing (100). The fixing portion (310) has an inlet end to allow the temperature sensor (200) to be mounted in the mounting cavity (301). The fixing portion (310) includes a top plate (311) and two side plates (312) connected to two sides of the top plate (311). An angle formed between the top plate (311) and each of the two side plates (312) is an obtuse angle. An opening slot (3112) facing away from the inlet end is formed on the top plate (311). The opening slot (3112) is offset from a centerline of the top plate (311). The structure enables the temperature sensor to accurately detect the housing temperature of the compressor, which helps to precisely control an operation state of the compressor.