Projection Device Elastic Sealing Member Cable Penetration

Solution Overview

Problem

Conventional projection devices require complex assembly processes and high-cost automation equipment due to the need for additional sealing with rubber members to prevent dust from entering the dustproof casing, especially when accommodating transmission cables.

Innovation Solution

The use of a light engine module with a first and second shell combined by an elastic sealing member allows the transmission cable to penetrate, eliminating the need for additional rubber sealing and simplifying the assembly process.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Object-affected harmful factors

If a rubber member is added to seal the opening for the transmission cable, then dustproof performance is improved, but device complexity and assembly cost increase

Engineering Contradiction:

Improvedust contaminationVSAvoidassembly complexity

Core Design Contradiction:

Object-affected harmful factorsVSDevice complexity

Solution Approach 1:

The sealing function is merged into the gasket member that already exists between the first and second shells. The gasket member is designed to simultaneously seal the junction between shells and provide a passage for the transmission cable, eliminating the need for a separate rubber member at the opening.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The gasket member is designed to perform multiple functions: sealing the junction between the first and second shells, and providing a sealed passage for the transmission cable to penetrate through. This multi-functional design eliminates the need for additional sealing components.

Inventive Principle:

Principle #6Universality (Multi-functionality)

2Object-affected harmful factors

If a rubber member is added to seal the opening for the transmission cable, then dustproof performance is improved, but assembly time increases

Engineering Contradiction:

Improvedust contaminationVSAvoidassembly time

Core Design Contradiction:

Object-affected harmful factorsVSLoss of time

Solution Approach 1:

The sealing function is merged into the gasket member that already exists between the first and second shells. The gasket member is designed to simultaneously seal the junction between shells and provide a passage for the transmission cable, eliminating the need for a separate rubber member at the opening.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The gasket member is pre-designed with an integrated cable passage structure, so that the sealing and cable penetration functions are prepared in advance. This eliminates the need for additional sealing operations during assembly, reducing assembly time.

Inventive Principle:

Principle #10Preliminary action

3Object-affected harmful factors

If a rubber member is added to seal the opening for the transmission cable, then dustproof performance is improved, but manufacturing cost increases

Engineering Contradiction:

Improvedust contaminationVSAvoidmanufacturing cost

Core Design Contradiction:

Object-affected harmful factorsVSEase of manufacture

Solution Approach 1:

The sealing function is merged into the gasket member that already exists between the first and second shells. The gasket member is designed to simultaneously seal the junction between shells and provide a passage for the transmission cable, eliminating the need for a separate rubber member at the opening.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The gasket member is designed to perform multiple functions: sealing the junction between the first and second shells, and providing a sealed passage for the transmission cable to penetrate through. This multi-functional design eliminates the need for additional sealing components.

Inventive Principle:

Principle #6Universality (Multi-functionality)

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 design simplifies the assembly process and reduces the cost of automation equipment by eliminating the need for additional sealing materials, thereby improving assembly efficiency and reducing production costs.

Implementation Method 1

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

Methodology Applied

Scientific EffectElasticity: Elasticity

Implementation Method 2

The light engine module is disposed on a transmission path of the illumination beam for receiving the illumination beam and converting the illumination beam into an image beam

Methodology Applied

Scientific EffectOptical conversion:

Data Source

PatentUS10571787B2Projection device

Publication Date: 2020.02.25 CORETRONIC CORPORATION

AI summary

A projection device includes a light source module, a light engine module and a projection lens. The light source module is used for emitting an illumination beam. The light engine module is used for receiving the illumination beam and converting the illumination beam into an image beam. The light engine module includes a first shell, a second shell, an elastic sealing member and an electronic component. The second shell and the first shell are combined with each other to form an accommodation space. The elastic sealing member is disposed between the first shell and the second shell for sealing a junction of the first shell and the second shell. The electronic component connects with a transmission cable. The transmission cable is penetratingly disposed at the elastic sealing member to penetrate out of the first shell and the second shell. The projection lens is used for receiving and projecting the image beam.