Light Fixture Self-Test with Built-In Pump for Sealing Checks
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Solution Overview
Problem
Existing stage light fixtures require time-consuming and labor-intensive sealing tests using external equipment, which is inconvenient for production and after-sales maintenance.
Innovation Solution
A light fixture with a built-in pump and air pressure sensor for self-testing sealing performance, allowing air pressure changes to be detected within a sealed cavity without disassembly, using a control system to determine sealing adequacy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If external sealing test equipment is used to test sealing performance, then sealing test accuracy is improved, but test time and labor consumption increase significantly
Solution Approach 1:
The light fixture performs self-testing of sealing performance using a built-in pump and air pressure sensor. The system inflates or exhausts air into the sealed cavity and detects air pressure changes to determine sealing adequacy, eliminating the need for external testing equipment and significantly reducing test time while maintaining accuracy.
Solution Approach 2:
The built-in pump and air pressure sensor serve dual purposes: they are used for sealing testing and can also be utilized for other functional tests or operational purposes of the light fixture, making the testing system universally applicable and reducing overall system complexity.
2Reliability
If external sealing test equipment is used, then sealing performance can be evaluated, but operational convenience and ease of maintenance deteriorate
Solution Approach 1:
The light fixture autonomously tests its own sealing performance without requiring external equipment or disassembly. The built-in pump and air pressure sensor enable the system to self-diagnose sealing issues, making operation convenient and maintenance easier while ensuring reliable sealing performance evaluation.
3Reliability
If the light source is placed in the sealed cavity, then waterproof performance is improved, but complexity of integrating sealing components increases
Solution Approach 1:
The light source, pump, air pressure sensor, and sealed cavity are integrated into a unified structure. The pump and sensor are incorporated within or adjacent to the sealed cavity, allowing the light source to be protected while maintaining a compact design that reduces overall structural complexity.
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
Enables time-saving and convenient self-testing of sealing performance without external devices, ensuring the light fixture can operate normally outdoors even if the light source is non-waterproof.
Implementation Method 1
an air pressure sensor for detecting air pressure inside the sealed cavity
Implementation Method 2
A built-in pump operable to allow air to enter or exist the sealed cavity
Data Source
AI summary
The light fixture with self-test ability of sealing includes a light head in which a light source is provided and a sealed cavity is formed, wherein a light beam generated by the light source is projected out through a light outlet. A built-in pump operable to allow air to enter or exist the sealed cavity and an air pressure sensor for detecting air pressure inside the sealed cavity is further included. A control system is further provided, which is in control connection with the air pressure sensor and the built-in pump and configured to determine sealing performance of the sealed cavity according to the air pressure detected by the air pressure sensor. Self-testing of sealing performance in the present invention is performed without engaging with any external equipment, as well as without disassembling the light fixture form the installation position, which is a time-saving and convenient way.