MOTOR ASSEMBLY
    1.
    发明公开
    MOTOR ASSEMBLY 审中-公开

    公开(公告)号:EP4194697A1

    公开(公告)日:2023-06-14

    申请号:EP22202929.0

    申请日:2022-10-21

    发明人: LIM, Jinsub

    摘要: A motor assembly includes an impeller, a first diffuser at a downstream side of the impeller, a second diffuser at a downstream side of the first diffuser, an impeller cover coupled to the second diffuser and accommodating the impeller and the first diffuser, and a motor provided at the downstream side of the second diffuser to drive the impeller. The second diffuser includes a hub, an outer wall concentrically disposed outside the hub, and a plurality of blades having one side connected to the hub and the other side connected to the outer wall. The impeller cover is coupled to the outer wall of the second diffuser. A communicating portion for allowing fluid communication between inside and outside of the hub of the second diffuser is provided at the hub of the second diffuser.

    AIR PURIFIER
    6.
    发明公开
    AIR PURIFIER 审中-公开

    公开(公告)号:EP3875768A1

    公开(公告)日:2021-09-08

    申请号:EP21160390.7

    申请日:2021-03-03

    摘要: The present disclosure related to an air purifier. The air purifier of the present disclosure includes: a case having a cylindrical shape and having a plurality of air suction ports formed in a circumferential wall; a filter disposed inside the case and filtering foreign matter in an air introduced through the air suction port; a fan disposed above the filter and flowing the air introduced through the air suction port in an upward direction; a fan housing disposed above the filter and forming a fan space in which the fan is disposed; a fan motor disposed above the fan and rotating the fan; and a cover protruding from the fan housing into the fan space so as to be disposed outside the fan, wherein a lower end of the fan is disposed by a certain distance from a lower wall of the fan housing to an upper wall, and the cover protrudes above the lower end of the fan from the lower wall of the fan housing.

    MAGNETICALLY COUPLED SEALLESS CENTRIFUGAL PUMP

    公开(公告)号:EP3523539A1

    公开(公告)日:2019-08-14

    申请号:EP17867899.1

    申请日:2017-10-31

    摘要: A magnetically driven centrifugal pump has a pump case, an open vane impeller in the pump case, a stuffing box including a stuffing box outer being fixed relative to the pump case and a stuffing box inner threadedly engaged with the stuffing box outer, and a rotor axially fixed and rotatably mounted in the stuffing box inner. Bushings are arranged between the rotor and the stuffing box inner. A drive is fixed relative to the pump case and includes a drive output extending into the rotor. There is a magnetic coupling between the rotor and the drive and a canister fixed to the stuffing box and extending through the magnetic coupling to isolate the rotor from the drive. A rub ring closes the end of the stuffing box inner and constrains the drive output from damaging the cannister under catastrophic bearing failure.

    AIR BLOWER AND CLEANER
    9.
    发明公开

    公开(公告)号:EP3511575A1

    公开(公告)日:2019-07-17

    申请号:EP19150210.3

    申请日:2019-01-03

    申请人: Nidec Corporation

    摘要: An air blower includes: a motor (10) having a shaft (11); an impeller (20) fixed to the shaft; and a motor housing (30) disposed radially outwardly of the motor. The impeller includes an impeller base (21) that is more extended radially outwardly at an axially lower position. The impeller base includes a boss section (212) fixed to the shaft. The motor housing includes an upper surface cylindrical section (33) that extends axially upward from a radially inner end of the motor housing upper surface (31). At least part of a radially inner surface of the upper surface cylindrical section is radially opposed to a radially outer surface of the shaft or the boss section, and an axially upper end of the upper surface cylindrical section is disposed over an axially lower end of the impeller base and over an upper end of a bearing (Br1).