Stage Light Support Sealing for Waterproof Motor Protection
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Solution Overview
Problem
Conventional stage light fixtures have poor waterproofing in their supports, necessitating expensive waterproof motors, which increase costs and complicate the structure, while non-waterproof motors are not suitable due to the risk of damage from moisture.
Innovation Solution
A stage light fixture with a support divided into a base and arms, featuring sealed cavities and interface sealing rings to prevent moisture ingress, allowing non-waterproof motors to be used safely.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If non-waterproof motor is installed in conventional support, then cost is reduced, but motor will be damaged by moisture ingress
Solution Approach 1:
The support is divided into multiple segments (support body, support arm, and sealing cavity components) that can be separately manufactured and assembled. This segmentation allows the sealing cavity to be integrated into specific portions of the support structure, providing moisture protection for the motor without requiring the entire support structure to be redesigned as a complex waterproof unit.
Solution Approach 2:
A sealing cavity acts as an intermediary protective layer between the external environment and the motor. This sealing cavity, formed by the support body and support arm, creates a protected space that isolates the motor from moisture while allowing the motor itself to remain a standard non-waterproof component.
2Reliability
If waterproof motor is used in support, then motor protection is improved, but cost significantly increases
Solution Approach 1:
Instead of using an expensive waterproof motor, the invention employs a standard non-waterproof motor protected by a relatively simple sealing cavity structure. This approach substitutes a costly component (waterproof motor) with a cheaper alternative (standard motor) while providing adequate protection through the sealing mechanism, thereby reducing overall system cost.
3Reliability
If motor and transmission components are arranged in light head, then motor protection is improved, but light head space is occupied
Solution Approach 1:
The motor and transmission components are extracted from the light head and relocated to the support structure. Specifically, the motor is positioned in the support body while the transmission components are placed in the support arm. This extraction frees up space in the light head and allows the motor to be protected by the sealing cavity formed in the support structure.
Data Source
AI summary
A stage light fixture has a support, a bottom case, a light head rotatable relative to the support or the bottom case with driving of a motor. The support includes a support base pivoted to the bottom case, a base sealing cavity being formed in the support base, and two support arms respectively pivoted to two opposite sides of the light head, two arm sealing cavities being respectively formed in the two support arms. The base sealing cavity is in communication with at least one of the two arm sealing cavities in the two support arms, the support base is in sealed connection with the two support arms at points where the base sealing cavity is in communication with the two arm sealing cavities, and the motor is positioned in the base sealing cavity or at least one of the two arm sealing cavities.