To provide a blower in which water adhering to an exterior of a casing is surely prevented from entering a cooling passage.SOLUTION: In a blower 10, a casing 16 comprises an upper case part 30 and a lower case part 32 which can be divided in an axial direction of a fan 14. The upper case part 30 includes: a first passage part 42 forming a part of the inner periphery side of an air blowing passage 34; a storage part 50 which is located adjacent to the outer periphery side of a suction port 38, recessed to a lower case part 32 side, and may store water; and a drain port 58 communicating with the air blowing passage 34. Meanwhile, the lower case part 32 has a second passage part 62 forming a part of the inner periphery side of the air blowing passage 34, an air intake port 72 for taking air into first and second cooling passages 84, 86 is open at the second passage part 62, and an inner peripheral wall 62a of the second passage part 62 is offset from an inner peripheral wall 42c of the first passage part 42 in a direction away from the air blowing passage 34 to form a recessed part 70.SELECTED DRAWING: Figure 4
【課題】送風機において、ケーシングの外部に付着した水の冷却用通路への浸入を確実に防止する。【解決手段】送風機10において、ケーシング16は、ファン14の軸方向に分割自在な上部ケース部30及び下部ケース部32からなり、前記上部ケース部30には、送風通路34の内周側の一部を構成する第1通路部42と、前記吸入口38の外周側に隣接し下部ケース部32側へと窪んで水を貯留可能な貯留部50と、前記送風通路34とを連通する排水口58とを備えている。一方、下部ケース部32は、送風通路34の内周側の一部を構成する第2通路部62を有し、該第2通路部62に第1及び第2冷却通路84、86へ空気を取り込むための空気取入口72が開口すると共に、前記第2通路部62の内周壁62aが前記第1通路部42の内周壁42cに対して前記送風通路34から離間する方向へオフセットして凹部70が形成される。【選択図】図4
BLOWER
送風機
2022-01-17
Patent
Electronic Resource
Japanese
IPC: | F04D Strömungsarbeitsmaschinen , NON-POSITIVE-DISPLACEMENT PUMPS / B60H ARRANGEMENTS OR ADAPTATIONS OF HEATING, COOLING, VENTILATING, OR OTHER AIR-TREATING DEVICES SPECIALLY FOR PASSENGER OR GOODS SPACES OF VEHICLES , Anordnung oder Einbau der Heizung, Kühlung, Lüftung oder anderer Luftbehandlungsvorrichtungen für die Fahrzeugräume für Reisende oder Fracht |