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1. WO2020108363 - HIGH-STRENGTH CENTRIFUGAL IMPELLER SUITABLE FOR DUST COLLECTOR AND ELECTRIC MOTOR

Publication Number WO/2020/108363
Publication Date 04.06.2020
International Application No. PCT/CN2019/119686
International Filing Date 20.11.2019
IPC
F04D 29/28 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
04POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
DNON-POSITIVE-DISPLACEMENT PUMPS
29Details, component parts, or accessories
26Rotors specially adapted for elastic fluids
28for centrifugal or helico-centrifugal pumps
F04D 29/30 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
04POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
DNON-POSITIVE-DISPLACEMENT PUMPS
29Details, component parts, or accessories
26Rotors specially adapted for elastic fluids
28for centrifugal or helico-centrifugal pumps
30Vanes
F04D 29/66 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
04POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
DNON-POSITIVE-DISPLACEMENT PUMPS
29Details, component parts, or accessories
66Combating cavitation, whirls, noise, vibration, or the like; Balancing
A47L 9/28 2006.01
AHUMAN NECESSITIES
47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
LDOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
9Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
28Installation of the electric equipment, e.g. adaptation or attachment to the suction cleaner; Controlling suction cleaners by electric means
CPC
A47L 9/28
AHUMAN NECESSITIES
47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
LDOMESTIC WASHING OR CLEANING
9Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
28Installation of the electric equipment, e.g. adaptation or attachment to the suction cleaner; Controlling suction cleaners by electric means
F04D 29/28
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
DNON-POSITIVE-DISPLACEMENT PUMPS
29Details, component parts, or accessories
26Rotors specially for elastic fluids
28for centrifugal or helico-centrifugal pumps ; for radial-flow or helico-centrifugal pumps
F04D 29/30
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
DNON-POSITIVE-DISPLACEMENT PUMPS
29Details, component parts, or accessories
26Rotors specially for elastic fluids
28for centrifugal or helico-centrifugal pumps ; for radial-flow or helico-centrifugal pumps
30Vanes
F04D 29/66
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
DNON-POSITIVE-DISPLACEMENT PUMPS
29Details, component parts, or accessories
66Combating cavitation, whirls, noise, vibration or the like
Applicants
  • 苏州工业园区星德胜电机有限公司 SUZHOU INDUSTRIAL PARK XINGDESHENG MOTOR CO., LTD. [CN]/[CN]
Inventors
  • 朱云舫 ZHU, Yunfang
Agents
  • 苏州华博知识产权代理有限公司 SUZHOU HUABO INTELLECTUAL PROPERTY AGENCY CO.LTD
Priority Data
201811421350.X27.11.2018CN
201821968287.727.11.2018CN
Publication Language Chinese (ZH)
Filing Language Chinese (ZH)
Designated States
Title
(EN) HIGH-STRENGTH CENTRIFUGAL IMPELLER SUITABLE FOR DUST COLLECTOR AND ELECTRIC MOTOR
(FR) ROUET CENTRIFUGE HAUTEMENT RÉSISTANT APPROPRIÉ POUR UN COLLECTEUR DE POUSSIÈRE ET MOTEUR ÉLECTRIQUE
(ZH) 一种适用于吸尘器的高强度离心叶轮及电机
Abstract
(EN)
Disclosed is a high-strength centrifugal impeller suitable for a dust collector, comprising an impeller upper cover (1), an impeller lower cover (2), and centrifugal blades (3). The impeller lower cover (2) and the impeller upper cover (1) are concentric and have the same center axis. The centrifugal blades (3) are circumferentially arranged along the center axis at equal intervals. Each of the upper edge surface (31) and the lower edge surface (32) of each centrifugal blade (3) is provided with at least two connecting points (5) so as to realize fixed connection with the impeller upper cover (1) and the impeller lower cover (2) respectively, and the distance between each connecting point (5) and the corresponding outer end part of the upper edge surface (31) or the lower edge surface (32) is less than or equal to 0.2mm. The distribution density of the connecting points (5) does not need to be increased, the vibration amplitudes of the end parts of the upper edge surfaces (31) and the lower edge surfaces (32) of the centrifugal blades (3) can be reduced merely by limiting the relative positions of the connecting points (5), so that connecting strength and fatigue durability are improved.
(FR)
L'invention concerne un rouet centrifuge hautement résistant approprié pour un collecteur de poussière, comprenant un capot supérieur de rouet (1), un capot inférieur de rouet (2) et des pales centrifuges (3). Le capot inférieur de rouet (2) et le capot supérieur de rouet (1) sont concentriques et comportent le même axe central. Les pales centrifuges (3) sont disposées de manière circonférentielle le long de l'axe central à intervalles réguliers. Chacune parmi la surface d'arête supérieure (31) et la surface d'arête inférieure (32) de chaque pale centrifuge (3) est pourvue d'au moins deux points de raccordement (5) en vue d'un raccordement fixe avec le capot supérieur de rouet (1) et le capot inférieur de rouet (2) respectivement, et la distance entre chaque point de raccordement (5) et la partie d'extrémité externe correspondante de la surface d'arête supérieure (31) ou de la surface d'arête inférieure (32) est inférieure ou égale à 0,2 mm. La densité de distribution des points de raccordement (5) n'a pas besoin d'être accrue, les amplitudes de vibration des parties d'extrémité des surfaces d'arête supérieure (31) et des surfaces d'arête inférieure (32) des pales centrifuges (3) peuvent être réduites simplement en limitant les positions relatives des points de raccordement (5), de sorte que la résistance de raccordement et la longévité à la fatigue sont améliorées.
(ZH)
一种适用于吸尘器的高强度离心叶轮,包括叶轮上盖(1)、叶轮下盖(2)以及离心叶片(3),其中,叶轮下盖(2)与叶轮上盖(1)同心布置,具有同一中心轴。离心叶片(3)沿着中心轴周向均匀间隔布置。在离心叶片(3)的上边缘面(31)、下边缘面(32)均设置有至少两个连接点(5),以分别地实现与叶轮上盖(1)、叶轮下盖(2)的固定连接,其中,针对单个上边缘面(31)或下边缘面(32)而言,各连接点(5)距离其各自外端部的距离不超过0.2mm。因此无需增加连接点(5)的分布密度,仅对连接点(5)的相对位置进行了限定,即可降低离心叶片(3)其上边缘面(31)和下边缘面(32)端部的振动幅度,进而提高了连接强度及耐疲劳性。
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