ELECTRONIC INFORMATION BOARD

摘要

The invention relates to an electronic information board comprising a frame (40), a flat display element (26), such as a TFT LCD display or plasma display for presenting information, and electronic equipment for controlling the display element. The information board has a weatherproof display casing (10) for the display element and a weatherproof device casing (12) for the electronic equipment needed for controlling the display element. Between the casings, there is a common cooling space (20) for cooling the devices in the display casing and the device casing. The display casing and the device casing can be separated from each other for opening the cooling space for the duration of the updating and maintenance of the information board. The display casing has a back wall (22) bordered to the cooling space, having cooling elements for transferring heat from the display casing to the cooling space. Similarly, the device casing has a back cover bordered to the cooling space, having cooling elements for transferring heat from the device casing to the cooling space. On the opposite sides of the cooling space there are ventilator slots, and inside the cooling board there are cooling fans for enabling air flow through the cooling space. There may be vertical or horizontal flow ducts in the cooling space for controlling the air flow.