ATBECHDEDKESFRGBGRITLILUNLSEMCPTIESILTLVFIROMKCYALTRBGCZEEHUPLSKBAHRISYU........JDIM360 (Ver 1.5 21 Nov 2005) - 1620000/01726244EUROPEAN PATENT APPLICATIONA320071114EP06290763.920060511enenen2005004091720050516KR2007111420074620061129200648A47L 9/00 20060101AFI20060823BHEP A47L 9/22 20060101ALI20060823BHEP deMotoranordnung und Staubsauger mit derselbenenMotor assembly and vacuum cleaner having the samefrEnsemble moteur et aspirateur avec le même2Samsung Gwangju Electronics Co., Ltd.04413350BET 06P0477 / H271, Oseon-dong, Gwangsan-guGwangju-cityKROh, Hyun-Jun157-14, Yanglim-dong, Nam-guGwangju-cityKRLee, Sung-Cheol423, Dongbaek-dong, Green House, 549-1, Oseon-dongGwangsan-gu, Gwangju-cityKRSong, Hwa-Gyu911-501, Unnam Jugong 9 Danji Apartment,Unnam-dongGwangsan-gu, Gwangju-cityKRHabasque, Etienne J. Jean-Françoiset al00062781Cabinet Lavoix 2, Place d'Estienne d'Orves75441 Paris Cédex 09FRATBEBGCHCYCZDEDKEEESFIFRGBGRHUIEISITLILTLULVMCNLPLPTROSESISKTRALBAHRMKYU20071114200746

A motor assembly (100) includes: a suction motor (110); at least one inner casing (120) adapted to enclose at least a part of the suction motor (110); and at least one outer casing (130) configured to enclose at least a part of the at least one inner casing (120), wherein a diffusion passage (P1) is formed between the at least one inner casing (120) and the at least one outer casing (130) and has an average cross-section that gradually increases to allow air to diffuse therein.