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Summary:PROBLEM TO BE SOLVED: To prevent the decrease of dust collection performance caused by providing a spring member in a linear electrode.SOLUTION: An electric charge part (40) includes a linear electrode (41) like a line, an electric charge electrode (42) facing the linear electrode (41), a spring member (44) connected to an end of the linear electrode (41), a first fixing part (46) which is provided in a side of a first inner wall part (38) of a casing (31) and to which one end of the linear electrode (41) is fixed via the spring member (44), and a second fixing part (47) which is provided in a side of an accommodation part (55) and to which the other end of the linear electrode (41) is fixed. 【課題】線状電極にバネ部材を設けることに起因して集塵性能が低下してしまうことを防止する。【解決手段】荷電部(40)は、線状の線状電極(41)と、線状電極(41)に対向する荷電用電極(42)と、線状電極(41)の端部に連結されるバネ部材(44)とを有し、ケーシング(31)の第1内壁部(38)側に設けられ、線状電極(41)の一端がバネ部材(44)を介して固定される第1固定部(46)と、収容部(55)側に設けられ、線状電極(41)の他端が固定される第2固定部(47)とを備えている。【選択図】図14
Bibliography:Application Number: JP20130144377