Integrally Formed Thread Lock Retention for Stable Capacitor Mounting
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Solution Overview
Problem
Existing thread lock retention features in laundry appliances lack efficient and secure methods to integrate electrical components, particularly capactors and other components, within the appliance substrate, leading to instability and potential electrical issues during use, transport, and storage.
Innovation Solution
The integration of a thread-lock receiver with outwardly biased retaining flanges coupled via living hinges, which engage a threaded stud upon rotation, providing a secure and stable position for electrical components within the appliance substrate, and a two-piece mold process without lifters for efficient manufacturing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional thread lock retention features are used, then electrical components can be mounted, but the components lack stability and are prone to loosening during transport and use
Solution Approach 1:
The patent combines the thread lock feature and retention flange into a single integrally formed component. The retention flange is directly molded as part of the thread lock receiver, eliminating the need for separate retention mechanisms and ensuring that both threading and retention functions work together to prevent component loosening during transport and use.
Solution Approach 2:
The retention flange incorporates a living hinge that allows dynamic movement between a retracted position (during insertion) and an engaged position (during operation). This dynamic feature enables the flange to automatically lock the electrical component in place after insertion, providing stability without requiring complex manual adjustment mechanisms.
2Ease of manufacture
If integrally formed thread lock receiver with retaining flanges is used, then manufacturing is simplified, but the structural complexity of the receiver increases
Solution Approach 1:
The thread lock receiver and retention flange are combined into a single integrally formed component manufactured in one injection molding cycle. This eliminates the need for separate manufacturing steps, assembly operations, and internal recesses, simplifying the overall manufacturing process despite the increased structural integration.
Solution Approach 2:
The receiver is designed with distinct functional segments (thread engagement portion, retention flange with living hinge, and biasing mechanism) that are integrally formed but structurally differentiated. This segmentation allows each feature to perform its specific function while maintaining manufacturability through single-step injection molding.
3Reliability
If outwardly biased retaining flanges are used, then electrical components are securely locked, but the insertion process becomes more complex
Solution Approach 1:
The living hinge enables the retention flange to dynamically change position during insertion. The flange is biased outwardly by default but automatically moves inward to engage the component body when the component is inserted and rotated, providing secure locking without requiring complex manual operations. The dynamic movement simplifies the user's task to basic insertion and rotation.
Solution Approach 2:
The biasing mechanism automatically returns the retention flange to its engaged position after insertion, securing the component without requiring additional user action. The system self-regulates the locking process through the inherent elasticity of the living hinge, eliminating the need for separate locking mechanisms or complex assembly steps.
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
This solution ensures secure engagement and protection of electrical components, preventing electrical shocks and short circuits, while simplifying the manufacturing process by eliminating the need for internal recesses and lifters, resulting in a more stable and efficient assembly method.
Implementation Method 1
at least one retaining flange that is coupled to the basement housing via a living hinge
Data Source
AI summary
A laundry appliance includes a basement housing comprising a capacitor receiver. A capacitor is disposed within the capacitor receiver to define a secured position. The capacitor receiver includes at least one retaining flange that is coupled to the basement housing via a living hinge. At least one retaining flange is outwardly biased away from a body of the capacitor when the capacitor is placed in an inserted position. At least one retaining flange includes a thread-engaging surface that operates to the secured position upon rotation of the capacitor in the inserted position.