Outdoor Projector Waterproofing via Integrated Single Shell Design
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Solution Overview
Problem
Conventional outdoor projectors are bulky, costly to manufacture, and lack waterproofing, leading to potential water leakage between their shells.
Innovation Solution
A waterproof outdoor projector design featuring a casing with a shell, lens set, and rotating set, where the shell has an operating space with a power supply board, Fresnel lenses, and a support frame, and includes a rotating mechanism with an electric machine and gear base, ensuring water cannot penetrate through sealed openings and holes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the projector uses separate lower shell and upper shell combined together, then the projector can protect internal components from water damage, but the volume becomes too big to carry around and manufacturing cost increases
Solution Approach 1:
The patent merges the lower shell and upper shell into a single integrated shell structure. The shell is designed as one piece with a bottom portion and a top portion that are formed together, eliminating the need for separate combined parts. This reduces the overall volume while maintaining the protective enclosure for internal components.
Solution Approach 2:
The single shell is segmented into functional regions including a bottom portion with support structures and a top portion with opening structures. The shell includes integrated features like support ribs, reinforcing ribs, and sealed openings that provide waterproof protection without requiring separate components.
2Reliability
If the projector uses separate lower shell and upper shell combined together, then the projector can protect internal components from water damage, but the manufacturing cost becomes too high due to needing respective materials
Solution Approach 1:
The patent combines multiple shell components into a single molded piece. The shell is formed as one integrated structure containing all necessary features such as support ribs, reinforcing ribs, sealed openings, and mounting structures. This eliminates the need for separate manufacturing and assembly of multiple shell parts, reducing material costs and manufacturing complexity.
3Ease of manufacture
If the projector uses separate lower shell and upper shell without waterproof element between them, then the manufacturing cost is reduced, but water may leak into the projector
Solution Approach 1:
The patent integrates waterproof features directly into the single shell structure. The shell includes sealed openings with gaskets or seals molded into the structure, and reinforcing ribs that prevent deformation and maintain seal integrity. The integrated design eliminates gaps between separate components while maintaining waterproof protection.
4Volume of moving object
If the projector uses a compact single shell design, then the volume is reduced and material usage is reduced, but the structural strength may be insufficient to protect internal components
Solution Approach 1:
The patent applies local reinforcement features at critical stress points within the single shell structure. Reinforcing ribs are strategically positioned to strengthen areas subject to stress or impact. The shell includes varying wall thicknesses and structural features concentrated where needed, providing enhanced strength without increasing overall volume or material usage uniformly throughout the structure.
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 design provides a compact, cost-effective, and fully waterproof projector that can project clear patterns surrounded by dynamic colorful clouds, offering enhanced durability and reduced material usage while maintaining functionality.
Implementation Method 1
The lens set includes a connecting lens and a projecting lens, and both the connecting lens and the projecting lens are Fresnel lenses
Implementation Method 2
both the connecting lens and the projecting lens are Fresnel lenses
Implementation Method 3
The rotating set is located in the operating space and has an electric machine and a gear base. The electric machine is combined with the support frame. The gear base rotatably abuts the support frame
Data Source
AI summary
An outdoor projector has a casing, a projecting set, and a rotating set. The casing has a shell, a lens set, and a wire base. An operating space is formed in the shell. An opening is formed through a front end of the shell. A wire hole is formed through a rear end of the shell. The projecting set is located in the operating space of the casing and has a support frame, a main light unit, and an auxiliary light unit. The support frame is combined with the shell and is located in the operating space. The main light unit and the auxiliary light unit are combined with the support frame. The rotating set is located in the operating space and has an electric machine and a gear base. The electric machine is combined with the support frame. The gear base rotatably abuts the support frame.