Electric Component Cover Locking Structure for Low-Distortion Detachment
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Solution Overview
Problem
Conventional protecting devices for electric components in hermetic electromotive compressors require complex detachment processes, leading to potential fracture of synthetic resin covers due to excessive distortion.
Innovation Solution
A protecting device with a bracket featuring an insert portion with projections of varying lengths and a cover with clamps and a ratchet system, allowing for secure attachment and detachment with minimal distortion, reducing the risk of fracture.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If both right and left ratchets are detached simultaneously to remove the cover, then the cover can be detached from the bracket, but the cover undergoes large distortion that causes fracture
Solution Approach 1:
The locking mechanism is segmented into multiple independent locking holes (first locking hole and second locking hole) with different ratchet detachment requirements. The cover can be detached by detaching only the first ratchet from the first locking hole, while the second ratchet remains engaged, allowing sequential rather than simultaneous detachment.
Solution Approach 2:
The cover is designed with preliminary positioning features (protrusions and recesses) that guide the detachment process. The first ratchet is positioned to be detached first, creating a controlled sequence that prevents sudden release and excessive distortion of the cover material.
2Stability of the object's composition
If multiple ratchets are used to prevent cover movement, then the cover fixation is secure, but the detachment process becomes complex and requires distortion of multiple wall surfaces
Solution Approach 1:
The locking system is divided into multiple independent locking holes, but the detachment process is simplified by designing the first locking hole to be accessible and detachable first. This segmentation allows stable fixation during operation while enabling simple sequential detachment.
Solution Approach 2:
The ratchet mechanism incorporates dynamic elements including elastic members that allow the ratchets to flex during attachment and detachment. This dynamic behavior enables secure locking during operation while facilitating easier detachment when needed.
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 enhances workability and reliability by allowing single-ratchet detachment, preventing cover fracture and ensuring secure fixation without looseness, while also reducing production costs and water ingress.
Implementation Method 1
a clamp (160) for clamping the distal end of the insert portion (130)
Implementation Method 2
a ratchet (170) fastened to the locking hole (145)
Implementation Method 3
an elastic member (180) having one end anchored to the cover and the other end connected to the ratchet
Data Source
AI summary
A device for protecting an electric component for a compressor is provided, where the device is equipped with a bracket formed with an insert portion and a locking part having a locking hole, facing each other; and a cover formed with a clamp for clamping the distal end of the insert portion, and a ratchet fastened to the locking hole, and where the insert portion is formed of a plurality of projections with different length of projected portions in insert direction. This makeup enables only one ratchet to fix the cover securely to the bracket, as well as makes the cover to be resistant to fracture owing to a small distortion of the cover when detaching.