Compressor Sensor Mounting Structure for Stable Overload Detection
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Solution Overview
Problem
Conventional compressors lack a positioning mechanism for the overload protection device, leading to misalignment and reduced adhesion between the detection device and the compressor surface.
Innovation Solution
A compressor design incorporating an elastic member with a first portion overlapping the detection device and a second portion that is pressed against the casing, generating a reaction force to maintain adhesion, along with a projection and support structures to enhance deformation and reaction force, preventing misalignment and adhesion loss.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If an elastic member is used to press the overload protection device against the compressor surface, then adhesion is improved, but misalignment occurs due to lack of positioning mechanism
Solution Approach 1:
The patent introduces a cover as an intermediary component that mediates between the elastic member and the overload protection device. The cover is pressed by the elastic member and in turn presses the overload protection device against the compressor surface, ensuring proper alignment while maintaining adhesion force.
Solution Approach 2:
The pressing function is segmented into two stages: first the elastic member presses the cover, then the cover presses the overload protection device. This segmentation allows the positioning function (cover) to be separated from the adhesion function (elastic member), resolving the contradiction between alignment and adhesion.
2Reliability
If the elastic member is pressed against the casing to generate reaction force, then adhesion is improved, but the structure becomes more complex
Solution Approach 1:
The cover serves multiple functions simultaneously: it acts as a positioning element, a pressing element, and a protective cover. By merging these functions into a single component, the structure remains simple while achieving both alignment and adhesion.
Solution Approach 2:
The cover is designed as a multi-functional component that performs positioning, pressing, and protection functions. This universality reduces the need for additional specialized components, maintaining structural simplicity while improving reliability.
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 design effectively inhibits the lowering of adhesion between the detection face and the compressor surface by increasing the reaction force and preventing misalignment, ensuring reliable operation of the overload protection device.
Implementation Method 1
The elastic member deforms when the cover presses the second portion of the elastic member against the casing. Then, the elastic member generates a reaction force to return to its original shape
Data Source
AI summary
A compressor includes a casing accommodating a compression mechanism, a detection device having a detection face configured to detect an internal state of the casing, an elastic member, and a cover mounted to the casing to cover the detection device and a part of the elastic member. The detection face is located opposite an outer peripheral face of the casing. The elastic member includes a first portion overlapping the detection device and a second portion not overlapping the detection device, as seen in plan view. The cover is configured to press the second portion of the elastic member against the casing, with the first portion of the elastic member pressing the detection device against the casing.