Passive thermal management and environmental protection structure for outdoor enclosures

Abstract

This novel structure is a passive thermal management and environmental protection structure for outdoor electronic device housings, consisting of three inseparable components: 1. A functional coating (126) applied to the outer surface of the housing body, which has high reflectivity in the visible to near-infrared band and high emissivity in the 8-14μm infrared band; 2. A heat-conducting and diffusing layer (127) provided on the inner surface of the housing body and thermally coupled to the heat source module (6), used to guide heat from the heat source module (6) to the housing body; 3. A gas exchange module (5) provided on the wall of the housing body, which forms a convection path between the inside and outside of the body under natural pressure difference conditions. This structure provides long-term heat dissipation without the need for external power supply, and also offers protection against weathering, corrosion, UV radiation, and salt spray. It is suitable for enclosures of communication cabinets, traffic control boxes, and renewable energy devices.

Claims

1. A passive thermal management and environmental protection structure for an outdoor equipment housing, comprising: A housing body (1); a functional coating (126) covering the outer surface of the housing body (1), which has high reflectivity to sunlight and high emissivity in the infrared band; a heat-conducting diffusion layer (127) disposed on the inner surface of the housing body (1) and thermally coupled to a heat source module (6) to guide the heat energy from the heat source module (6) to the housing body (1); and a gas exchange module (5) disposed on the wall of the housing body (1), the gas exchange module (5) having a connection between the outside air and the inside of the housing. The cavity has a channel and a one-way check valve structure to form a convection path between the inside and outside of the body under natural pressure difference conditions. The functional coating (126) is provided on the outer surface of the outer shell body (1), the heat-conducting diffusion layer (127) is provided on the inner surface of the outer shell body (1), and the gas exchange module (5) is provided on the wall of the outer shell body (1). The three are arranged in space to form an inseparable whole structure, so that the outer shell body (1) can still provide long-term heat dissipation and weather protection performance under the condition of no external power supply.

Images