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    • 3. 发明公开
    • Motor cap and housing for wet/dry vacuum
    • 电机盖和外壳用于湿/干真空
    • EP0270935A3
    • 1988-10-05
    • EP87117458
    • 1987-11-26
    • Shop-Vac Corporation
    • Berfield, Robert C.Meland, Ronald
    • A47L07/00A47L09/22
    • A47L7/0028A47L7/0038A47L7/0042A47L9/22
    • A wet/dry vacuum cleaner (20), including an accumulating tank (21) having a removable top (25) which mounts an electric motor (26) and suction produc­ing fan (29) driven by the motor (26), is provided with a molded plastic cap (23) for the motor (26) and a sep­arate molded plastic cover (27) fitted over the cap (23). An electric junction box (167) molded integrally with the cap (23) is provided with a snap-fitted remov­able perforated cover (170). The motor cover (23) is provided with inlet and exhaust apertures (76, 77) for motor cooling air, and cooperates with the cap (23) to direct the cooling air from the inlet (76), through the motor (26) and out the exhaust (77) while some of the cooling air also passes through the junction box (167). To facilitate inspection and servicing, the motor cover (27) and cap (23) are removable without disturbing mechanical mounting of other components and without opening the junction box (167).
    • 包括具有安装电动机(26)的可拆卸顶部(25)和由电动机(26)驱动的抽吸产生风扇(29))的蓄积箱(21)的湿/干吸尘器(20)设置有 用于马达(26)的模制塑料盖(23)和安装在盖(23)上的单独的模制塑料盖(27)。 与盖(23)一体成型的电接线盒(167)设置有卡扣式可移除穿孔盖(170)。 马达盖(23)上设有用于马达冷却空气的入口和排气孔(76,77),并与盖(23)配合以引导来自入口(76)的冷却空气通过马达(26)和 (77),而一些冷却空气也通过接线盒(167)。 为了便于检查和维修,马达盖(27)和盖(23)是可拆卸的,而不会妨碍其他部件的机械安装,而不打开接线盒(167)。
    • 4. 发明公开
    • Quiet by-pass vacuum motor
    • QUIET旁路真空电机
    • EP0192599A3
    • 1988-05-11
    • EP86730027
    • 1986-02-21
    • AMETEK Inc.
    • Smith, Francis E.Hyatt, Robert L.
    • A47L05/22A47L09/22
    • A47L9/22A47L5/22
    • A by-pass vacuum motor assembly wherein the motor cooling fan is positioned in an opening at the bottom of the motor band and immediately above a flat plate portion of the fan housing bracket. The flat plate portion functions as a plate diffuser, redirecting air drawn through the commutator end bracket and across the motor internals into a radial exhaust between a bottom portion of the band and a top portion of the fan end bracket. The invention also includes a brush holder clip passing through a vertical opening in the commutator end bracket and engaging a collar on the brush mechanism. The brush mechanism passes through a horizontal opening in the commutator end bracket which intersects with the vertical opening. Armature grounding is achieved by a disk maintainea in a recess in the commutator end bracket and urged by a spring against the bearing receiving the motor shaft The power wires to the motor are secured by a tab maintained opposite an opening in the commutator end bracket which is itself opposite an opening in the band. Power wires pass through the openings and over the tab, being crimped thereby.