Packaging Container With Articulated Pressure Relief Valve
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Solution Overview
Problem
Current packaging containers for automotive parts, such as brake discs and brake drums, lack effective moisture and liquid sealing, allowing damage during transportation, and require excessive material for mechanical strength, with pressure relief mechanisms that are either single-use or prone to damage.
Innovation Solution
A packaging container with a circular pressure relief valve made in a single piece through thermoplastic injection, featuring an articulated connecting base and closure lid with interference fit sealing, allowing repeated opening and closing without damage, and structural ribs for reduced material usage while maintaining mechanical strength, including compartments for storing small parts.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a seal is glued to the package cover to seal the air pressure relief opening, then the opening is protected from external agents, but the seal wears out after repeated removal and reattachment, losing its effectiveness
Solution Approach 1:
The patent applies the dynamics principle by making the closure lid of the pressure relief valve articulated and movable, allowing it to be opened and closed repeatedly. The closure lid is connected to the connecting base through an articulated connection that enables rotational movement, transforming the static sealed state into a dynamic system that can transition between sealed and open states multiple times without degrading the sealing effectiveness.
Solution Approach 2:
The pressure relief valve is segmented into distinct functional components: a connecting base that integrates with the package, a closure lid that can be opened and closed, and an articulated connection that joins them. This segmentation allows the closure lid to be independently operated while maintaining the integrity of the overall sealing system, enabling repeated use without wear.
2Strength
If a large amount of material is used to manufacture the package, then mechanical strength is sufficient to withstand transport and stacking, but material cost and weight increase
Solution Approach 1:
The package structure is segmented by introducing structural ribs that divide the container walls into reinforced sections. These ribs create a framework that distributes mechanical loads throughout the package, allowing the use of less material overall while maintaining or enhancing strength. The ribs act as structural reinforcements that prevent buckling and deformation under transport conditions.
Solution Approach 2:
The package employs a composite structural approach by integrating structural ribs into the container walls, creating a hybrid structure that combines the base material with reinforcing elements. This composite design optimizes the material distribution, providing maximum strength where needed while reducing material usage in less critical areas, thereby lowering both weight and material cost.
3Ease of manufacture
If the pressure relief valve is made with multiple separate parts, then assembly flexibility is improved, but the valve becomes susceptible to damages due to parts interaction and requires complex manufacturing
Solution Approach 1:
The connecting base and closure lid of the pressure relief valve are merged into a single integrated component manufactured through thermoplastic injection molding. This unification eliminates the interfaces between separate parts that could lead to damage, wear, or assembly failures. The single-piece construction maintains manufacturing flexibility while significantly improving reliability by removing potential failure points associated with multiple parts.
4Object-affected harmful factors
If the seal is taped to the top of the opening, then the opening is initially protected, but moisture and liquids can eventually penetrate during long-term transportation
Solution Approach 1:
The pressure relief valve with its articulated closure lid provides a dynamic sealing solution that maintains protection throughout long-term transportation. Unlike static adhesive seals that degrade over time, the articulated closure lid can be opened and closed while maintaining its sealing capability, ensuring continuous protection against moisture and liquids even during extended storage and transport periods.
Solution Approach 2:
The patent moves away from disposable adhesive seals that lose effectiveness over time to a durable, reusable pressure relief valve system. The valve is designed to maintain its sealing function throughout the entire transportation lifecycle, eliminating the need for replacement or reapplication and providing long-term protection against harmful external agents.
Data Source
Figure 1~2
Figure 3~5
Figure 6~6A
AI summary
The present invention relates to a packaging container (E) comprising a base (2) closed by an overlapping cover (1) used for the storage of automotive parts, particularly, brake discs and/or brake drums, clutch discs, wheel hubs or any other parts with similar shapes for automotive vehicles, package (E) being provided with structural ribs (3) and at least one opening (4), which is sealed with a pressure relief valve (5), which is formed into a single piece and provided with a connecting base (50) and a closure lid (51) joined to one another in an articulated way. Said pressure relief valve (5) further comprises connecting and sealing means (5A) arranged between the connecting base (50) and the opening (4), and connecting and sealing means (5B) arranged between the closure lid (51) and the connecting base (50).