| 摘要 |
PURPOSE: A distribution board is provided to prevent temperature rising inside of the distribution board by improving thermal conductivity through the electro-thermal pin of the outer side of a duct. CONSTITUTION: A distribution board is composed of a main body(10) which is an enclosure formed into a box shape and a door which is installed in the main body to be possible to rotate. The main body and the door are formed by interconnecting a plurality of panels through welding. A duct(70) comprises an inhalation duct(70a), a connection duct(70b), a exhaust duct(70c), and a branch duct(70d). Heating equipment(60) is installed in the distribution board between the inhalation duct and the branch duct. An inhalation fan(74) is installed in a tip-end part of the inhalation duct. A filter(76) is installed in the inhalation duct in order to filter an foreign material. |
