Moisture-Proof Spotlight Driving Device Relocation

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Solution Overview

Problem

Conventional spotlights are vulnerable to moisture damage due to the horizontal driving device being fixed inside the support, which can be compromised by rainwater in damp weather conditions, leading to device failure.

Innovation Solution

The moisture-proof spotlight design relocates both vertical and horizontal driving devices within the lamp housing, utilizing a moisture-proof partition set and a stationary gear integrated with the support, ensuring the driving devices are protected from moisture and the spotlight remains durable in damp conditions.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the horizontal driving device is fixed inside the support, then the spotlight can achieve horizontal rotation, but the driving device is vulnerable to moisture damage in damp weather

Engineering Contradiction:

Improvedurability of driving deviceVSAvoidmoisture damage to horizontal driving device

Core Design Contradiction:

ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The horizontal driving device is extracted from the support and relocated to the lamp housing. Specifically, the horizontal driving device is fixed to the inner wall of the lamp housing, separating it from the moisture-prone support structure. This extraction protects the driving device from rainwater while maintaining its rotational function.

Inventive Principle:

Principle #2Taking out (Extraction)

Solution Approach 2:

The lamp housing serves as an intermediary protective structure between the horizontal driving device and the external moisture environment. By fixing the driving device to the lamp housing instead of the support, the lamp housing acts as a mediator that shields the driving device from direct exposure to rainwater while still allowing the required horizontal rotation motion.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Reliability

If the driving devices are relocated to the lamp housing, then moisture protection is improved, but the structural complexity increases

Engineering Contradiction:

Improvemoisture resistance of driving devicesVSAvoidstructural complexity of spotlight

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The lamp housing is given multiple functions: it not only protects the lamp assembly but also serves as the mounting structure for both the vertical and horizontal driving devices. By making the lamp housing a multi-functional component that accommodates all driving mechanisms, the patent avoids adding separate protective housings, thereby limiting the increase in structural complexity.

Inventive Principle:

Principle #6Universality (Multi-functionality)

Solution Approach 2:

The patent merges the function of the driving device mounting structure with the lamp housing itself. Instead of having separate supports and housings for different components, the design combines the lamp housing as a unified structure that houses both driving devices, simplifying the overall structure compared to having separate protective enclosures for each device.

Inventive Principle:

Principle #5Merging (Combining)

Data Source

PatentUS9212813B2Moisture-proof spotlight

Publication Date: 2015.12.15 WANG MAO SHEN

AI summary

A moisture-proof spotlight includes a lamp housing, a support pivotally supporting the lamp housing from below and a lamp assembly pivotally installed inside the lamp housing, wherein the lamp housing contains therein a moisture-proof partition set provided for a vertical driving device and a horizontal driving device to affix thereto and also together installed inside the lamp housing for moisture-proof, thereby the defect of a conventional spotlight due to its horizontal driving device installed in the support tended to be affected by moisture is capably eliminated.