Projection Device Elastic Sealing Member Assembly

Solution Overview

Problem

Conventional projection devices require complex assembly processes and high automation costs due to the need for additional sealing components to prevent dust from entering the optical engine module, which slows down the assembly process and increases production costs.

Innovation Solution

The use of an elastic sealing member between the first and second shells of the optical engine module simplifies the assembly process by allowing signal transmission components to pass through, eliminating the need for additional sealing components like rubber, and enhancing the dust-proof effect with an engagement groove and protruding portion for improved sealing.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Object-affected harmful factors

If additional sealing components (rubber pieces) are added to seal openings for transmission lines, then dust-proof performance is improved, but assembly complexity and time increase

Engineering Contradiction:

Improvedust contaminationVSAvoidassembly complexity

Core Design Contradiction:

Object-affected harmful factorsVSDevice complexity

Solution Approach 1:

The patent combines the sealing function and the transmission line passage function into a single integrated dust-proof housing structure. The housing includes openings that allow transmission lines to pass through while maintaining dust-proof sealing, eliminating the need for separate rubber pieces and reducing assembly steps.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The dust-proof housing is designed to perform multiple functions simultaneously: it protects optical elements from dust, allows transmission lines to pass through, and provides structural support. This multi-functional design reduces the number of separate components needed and simplifies the overall assembly process.

Inventive Principle:

Principle #6Universality (Multi-functionality)

2Object-affected harmful factors

If additional sealing components (rubber pieces) are added to seal openings for transmission lines, then dust-proof performance is improved, but assembly time increases

Engineering Contradiction:

Improvedust contaminationVSAvoidassembly efficiency

Core Design Contradiction:

Object-affected harmful factorsVSProductivity

Solution Approach 1:

The patent combines the sealing function and the transmission line passage function into a single integrated dust-proof housing structure. The housing includes openings that allow transmission lines to pass through while maintaining dust-proof sealing, eliminating the need for separate rubber pieces and reducing assembly steps.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The dust-proof housing is pre-designed with integrated openings and sealing structures, so that the sealing function is already built into the housing before assembly. This preliminary integration eliminates the need for additional sealing steps during assembly, improving production efficiency.

Inventive Principle:

Principle #10Preliminary action

3Extent of automation

If complex clamps and robotic arms are added for automated assembly, then automation extent is improved, but device complexity and cost increase

Engineering Contradiction:

Improveautomation capabilityVSAvoidequipment complexity

Core Design Contradiction:

Extent of automationVSDevice complexity

Solution Approach 1:

The patent combines the sealing function and the transmission line passage function into a single integrated dust-proof housing structure. The housing includes openings that allow transmission lines to pass through while maintaining dust-proof sealing, eliminating the need for separate rubber pieces and reducing assembly steps.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The dust-proof housing is designed with self-aligning features and integrated sealing structures that allow for simple and quick assembly without requiring complex clamps or robotic arms. The housing's design enables automated assembly with simple equipment, reducing automation costs.

Inventive Principle:

Principle #25Self-service

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 simplifies the assembly process, reduces automation equipment costs, and enhances the dust-proofing of the projection device, making it more efficient and cost-effective for automated production.

Implementation Method 1

an elastic sealing member is disposed between the first shell and the second shell for sealing the junction of the first shell and the second shell

Methodology Applied

Scientific EffectElasticity: Elasticity

Implementation Method 2

The first surface has an engagement groove. A portion of the first shell is engaged in the engagement groove

Methodology Applied

Scientific EffectMechanical Fastening: Mechanical Fastener

Data Source

PatentUS10859897B2Projection device

Publication Date: 2020.12.08 CORETRONIC CORPORATION

AI summary

A projection device includes a light source module for emitting an illumination beam, an optical engine module for receiving the illumination beam and forming an image beam, and a projection lens for receiving and projecting the image beam to an outside of the projection device. The optical engine module includes first and second shells coupled in a first direction, an elastic sealing member and electronic components. The shells form an accommodation space in which the electronic components are disposed. The elastic sealing member has opposite first and second surfaces. The first surface has an engagement groove in which a portion of the first shell is engaged. The second shell abuts against the second surface. Signal transmission components of the electronic components are disposed through the elastic sealing member to pass through the shells.