Views: 0 Author: Site Editor Publish Time: 2025-11-17 Origin: Site
Along airport runways, high-intensity noise or audiovisual bird-repellent devices—such as omnidirectional loudspeakers and directional sound-light systems—must withstand heavy rain and dust; on border patrol vehicles, powerful searchlights endure both road and exposure to mud and sandblasting winds; in emergency broadcasting scenarios, equipment may abruptly transition from scorching sunlight to torrential downpours. For devices employing intense sound, illumination, or integrated audiovisual technology—commonly deployed outdoors, in vehicles, or under extreme conditions—the IP protection rating is far more than just a parameter printed on the nameplate; it serves as a critical lifeline determining mission success.
This article primarily introduces IP protection ratings and the protective measures implemented in our audio-visual product series.
The IP (Ingress Protection) rating is a standard established by the International Electrotechnical Commission (IEC), using a two-digit code (e.g., IP65) to quantify a device's dust and water resistance.
From 0 to 6. The higher the number, the stronger the dust protection. Level 6 means "complete prevention of external objects and dust ingress."
• IP5X: In accordance with IEC60529 and related standards, while it cannot completely prevent dust ingress, the amount of dust entering does not affect the normal operation or safety of the equipment.
• IP6X: Compliant with IEC 60529 and other enclosure protection standards, it represents the highest dust protection rating, completely preventing the ingress of external solid particles and ensuring dust-free operation—even in sandy or dusty environments—with a "windproof seal."
Figure 1 IP6x test
This indicator reflects the waterproof performance in IP protection ratings, classified according to the International Electrotechnical Commission (IEC) standard IEC 60529, ranging from 0 to 8—where a higher number indicates stronger waterproof capability.
• IPX5: Resistant to water spray and withstands water impact from any angle
• IPX6: Resistant to strong jet water, equivalent to intense sea waves or high-pressure water spray
• IPX7: Resistant to short-term water immersion; remains waterproof when submerged in 1-meter-deep water for 30 minutes
Figure 2 IPx5 Test1
The high-power sound and lighting equipment integrates a high-power amplifier, power supply board, and control system internally, while the transducer contains a diaphragm and voice coil. To achieve IP65/IP66 or even IP68 protection ratings, we implemented systematic design measures in the product development:
The electrical module features a fully enclosed design with custom-made sealing rings, eliminating any potential gaps at the structural level. This achieves the highest IP6X dust protection rating under IP standards, providing complete prevention of dust ingress.
All external interfaces employ waterproof aviation connectors or connectors with sealing covers to achieve "point-to-point" sealing.
Figure 3: 2A gas-tight waterproof connector
Use an IP68-rated waterproof and dustproof film to protect the transducer's sound cavity.
Figure 4 shows the 3transducer with an added IP68 membrane
The sound-emitting surface features a double-layer carbon fiber acoustic mesh structure, with an internal stainless steel mesh bonded within to prevent direct impact from sand, gravel, and hailstones, while also protecting against the entry of moths and insects.
Figure 5 Carbon fiber 4acoustic mesh and stainless steel support mesh
Equipped with Rain Canopy
Large equipment should be equipped with rain eaves to prevent rainwater from directly washing away vulnerable areas such as joints and lens seals, thereby avoiding water accumulation.
Figure 6: Rain5-shading eave design
The structure is specially designed for automotive or marine equipment, ensuring structural integrity of the housing even under severe vibrations or impacts, thereby preventing seal failure.
