Waterproof Projector Push Button Sealing Mechanism

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Solution Overview

Problem

Existing waterproof and autonomous lighting devices face challenges in ensuring a simple and easy-to-install sealing mechanism for the push button, which is complex to produce and install due to the need for multiple parts.

Innovation Solution

A push button design with a flexible collar and a longitudinal rod that acts as an actuator, mounted in a guide within the sealed chamber, allowing for easy manipulation and magnetic attachment for secure positioning, simplifying the sealing process and reducing the number of required parts.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a traditional push button sealing mechanism is used, then watertightness is achieved, but the design becomes complex and requires many parts

Engineering Contradiction:
ImprovewatertightnessVSAvoidnumber of parts
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent combines multiple sealing functions into a single integrated push button assembly. The push button incorporates a sealing ring directly integrated into its structure, eliminating the need for separate sealing components. This merging of the button and sealing elements into one unit achieves watertightness while reducing part count and simplifying the overall design.

Inventive Principle:
Principle #5Merging (Combining)

2Reliability

If a traditional push button sealing mechanism is used, then watertightness is achieved, but installation becomes difficult

Engineering Contradiction:
ImprovewatertightnessVSAvoidinstallation ease
Core Design Contradiction:
ReliabilityVSEase of manufacture

Solution Approach 1:

By integrating the sealing ring directly into the push button structure, the patent creates a single-component assembly that is both watertight and easy to install. The merged design eliminates complex assembly steps required for traditional multi-part sealing mechanisms, allowing installation by simply positioning the integrated button into the designated opening.

Inventive Principle:
Principle #5Merging (Combining)

3Reliability

If the push button is positioned on the casing, then sealing is achieved, but user accessibility is reduced

Engineering Contradiction:
ImprovesealingVSAvoiduser accessibility
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The patent repositions the push button from the side casing to the front lens surface, utilizing a different spatial dimension for control access. This dimensional relocation maintains sealing integrity through the integrated sealing ring while dramatically improving user accessibility, as the button on the front surface is easily reachable and operable without requiring access to side or rear compartments.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

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 provides a watertight and easily accessible push button mechanism that is simple to install, ensuring effective sealing with minimal components and allowing for easy user operation, while maintaining the device's autonomy and waterproof integrity.

Implementation Method 1

The collar is preferably flexible with elastic properties, such that it is in an undeformed position when no actuation pressure is applied to the push button, the active portion of the rod being distant from the control element when the collar is in this undeformed position

Methodology Applied
Scientific EffectElasticity: Elasticity

Implementation Method 2

The housing is advantageously provided with a magnetic fixing

Methodology Applied
Scientific EffectMagnetism: Magnetism

Data Source

PatentEP3276259B1Watertight projector and method for manufacturing same
Publication Date: 2021.01.06 ALPHADIF
  • EP3276259B1 patent drawingFigure 1~3
  • EP3276259B1 patent drawingFigure 4~5
  • EP3276259B1 patent drawingFigure 6

AI summary

The invention relates to a waterproof projector comprising: - a casing on which is fixed an optic (3) delimiting a waterproof chamber (4), - an electric battery device (51) and light sources (5) installed in the waterproof chamber (4), - a control element (52) for the illumination of the light sources (5) which is actuated by a push button (6) installed in a housing (30) made in the optic (3), - the push button (6) includes a deformable collar (61) provided with a waterproof seal (62), - the housing (30) has a groove (321) into which the waterproof seal (62) engages, - a retaining member (7) for locking the waterproof seal (62) in position in the groove (321).