Poor heat dissipation inside the cabinet will lead to the burning of equipment or precision electronic components in the cabinet and affect the normal work. Therefore, the heat dissipation of the chassis and cabinet has always been a headache for people. Let's talk about how to deal with this problem effectively.
At present, the cooling of most cabinets is to control the temperature of each equipment in the cabinet by reducing the temperature of the machine room. With the continuous expansion of cabinet expansion space, the density of equipment becomes more and more compact, which has an adverse impact on the heat dissipation in the cabinet. Therefore, it is imperative to effectively solve the heat dissipation problem of high-density equipment cabinet.
With the continuous improvement of chassis and cabinet technology, the workmanship of sheet metal chassis and cabinet is becoming more and more fine, and its structural design is becoming more and more exquisite. The new cabinet adopts slotted box edge structure. The door is pasted with polyurethane foam sealing waterproof tape, which can be closely pasted on the edge of the slotted box. The internal design of the movable mounting plate makes the installation of the equipment more convenient and fast. And there are heat dissipation holes on the top to better enhance the heat dissipation effect.
The cabinet also adopts new technology and adopts the thermal design principle of the cabinet, so as to better improve the heat transfer capacity of electronic components inside the cabinet and other equipment; At the same time, the heat transfer ability of the chassis to the outside world is improved; Greatly reduce the heat transfer path, so as to form a heat flow path with low thermal resistance, so as to better ensure the normal operation of the equipment within a certain temperature range.
How do we deal with the thermal design of the chassis cabinet? Or how can we better improve the heat dissipation efficiency of chassis and cabinet? In fact, the heat dissipation design of sheet metal chassis is to increase the blackness of the inner and outer skin of the chassis, and achieve the function of heat dissipation by opening air holes, so as to reduce the temperature. Generally speaking, the effect of high blackness on the inner and outer surfaces of the cabinet is better than that of low blackness, and there is high blackness heat dissipation on both sides of the chassis.
The ventilation hole of the cabinet is used to dissipate heat, so what principle does it use to dissipate heat? The vent on the cabinet chassis uses the principle of cold air convection heat transfer to dissipate heat. The ventilation hole of the cabinet shall be set in a certain principle.
The basic principle of ventilation hole opening is that the opening of ventilation hole shall be conducive to the formation of effective convection channel for air flow, the air inlet hole shall be aligned with the heated gas as far as possible, and the air inlet hole shall be kept at a certain distance from the air outlet. Thus, the short circuit phenomenon of air flow is avoided. The ventilation hole shall be opened at the position with large temperature difference, and the air inlet shall also pay attention to dust prevention and electromagnetic leakage.
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