Resilient Gasket Mounting for Small Cell Filter Enclosures

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Solution Overview

Problem

Current filter assemblies in small cell applications require additional metal for screw-mounted tuning covers, increasing the footprint and visual impact, and necessitate multiple screws and holes, which are not ideal for space-constrained installations.

Innovation Solution

A resilient gasket is configured to provide both environmental sealing and secure the tuning cover to the filter base, eliminating the need for peripheral mounting holes and screws, allowing for a smaller footprint and reduced component size.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Strength

If screw-mounted tuning covers are used to secure the cover to the base, then reliable mounting is achieved, but the footprint and overall size of the filter assembly increases

Engineering Contradiction:
Improvemounting reliabilityVSAvoidfilter assembly footprint
Core Design Contradiction:
StrengthVSArea of stationary object

Solution Approach 1:

The patent combines the environmental seal function and the mounting function into a single integrated gasket component. The gasket simultaneously provides sealing between the base and cover while its resilient nature allows it to secure the cover to the base without requiring separate mounting hardware, thereby eliminating the need for peripheral screws and mounting holes that would increase the footprint.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The gasket serves multiple functions: it provides environmental sealing, secures the tuning cover to the filter base through resilient pressure, and eliminates the need for separate mounting hardware. This multi-functionality reduces the overall component count and allows for a more compact design without compromising mounting reliability.

Inventive Principle:
Principle #6Universality (Multi-functionality)

2Strength

If peripheral mounting holes and screws are added to secure the tuning cover, then secure mounting is achieved, but the number of components and manufacturing complexity increases

Engineering Contradiction:
Improvemounting securityVSAvoidnumber of mounting components
Core Design Contradiction:
StrengthVSDevice complexity

Solution Approach 1:

The patent merges the sealing function and mounting function into a single gasket component, eliminating the need for separate screws, mounting holes, and associated hardware. The resilient gasket provides both environmental sealing and secure mounting through its elastic properties, significantly reducing the total component count and simplifying the assembly process.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The invention extracts and eliminates the unnecessary mounting holes and peripheral screws from the design. By using the resilient gasket's natural elasticity to provide mounting security, the patent removes extraneous components that would otherwise be required for secure attachment, thereby reducing device complexity.

Inventive Principle:
Principle #2Taking out (Extraction)

3Strength

If additional metal is added around the housing perimeter for screw mounting, then secure attachment is achieved, but the filter footprint and visual impact increase

Engineering Contradiction:
Improveattachment securityVSAvoidhousing perimeter area
Core Design Contradiction:
StrengthVSArea of stationary object

Solution Approach 1:

The patent combines the sealing and mounting functions into the gasket, which integrates directly with the existing housing perimeter without requiring additional metal bands or extensions. The gasket's resilient properties allow it to provide secure attachment while maintaining the original housing dimensions, thus avoiding any increase in footprint or visual impact.

Inventive Principle:
Principle #5Merging (Combining)

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 configuration results in smaller, less expensive filter assemblies with fewer mounting screws, reducing the overall size and cost while maintaining effective environmental sealing and secure mounting.

Implementation Method 1

a resilient gasket configured to apply a compressive force that secures the periphery of the first base cover to the first base

Methodology Applied
Scientific EffectElasticity: Elasticity

Data Source

PatentEP3700309B1Enclosure for electronic components
Publication Date: 2023.07.05 ALCATEL LUCENT SHANGHAI BELL CO LTD
  • EP3700309B1 patent drawingFigure 1A
  • EP3700309B1 patent drawingFigure 1B
  • EP3700309B1 patent drawingFigure 2A

AI summary

An enclosure for electronics includes a base, a base cover, a gasket, and an enclosure cover. The base receives one or more electronic elements. The base cover is mounted over the first base to secure the electronic elements within the base and form a unit having a groove in at least a part of the periphery of the unit. The gasket resides within the groove of the first unit. The enclosure cover is mounted over the first unit and the gasket and applies a compressive force to the gasket such that the gasket (i) forms a seal for the enclosure and (ii) applies force that secures at least a part of the periphery of the first base cover to at least a part of the periphery of the first base. In a single-unit assembly, the enclosure cover is an assembly cover that attaches to the unit. In a dual-unit assembly, each unit functions as the enclosure cover for the other unit in a clam-shell configuration.