公开(公告)号：EP3685725A1

公开(公告)日：2020-07-29

申请号：EP17925756.3

申请日：2017-10-16

Applicant: LG Electronics Inc.

Inventor： HYUN, Kietak ,  LEE, Sangchul ,  LEE, Changgun

IPC: A47L9/16

Abstract: A dust collector according to the present disclosure may include a cylindrical housing configured to form an outer appearance of the dust collector; a cyclone formed inside the housing to cause a swirling flow to separate dust from air introduced into the housing; axial inlet type swirl tubes configured to receive air and fine dust that have passed through the cyclone, and cause a swirling flow to separate the fine dust from the air; and a mesh configured to surround an outside of the axial inlet type swirl tubes to form a boundary between the cyclone and the axial inlet type swirl tubes, wherein the axial inlet type swirl tubes are stacked in multiple stages and the axial inlet type swirl tubes in each stage are arranged in two columns such that the first and second columns are disposed toward opposite directions to each other, and an axial length of each of the axial inlet type swirl tubes gradually increases as it approaches the axial inlet type swirl tube disposed at the center of each stage.

公开(公告)号：EP3076025A1

公开(公告)日：2016-10-05

申请号：EP16161896.2

申请日：2016-03-23

Applicant: LG Electronics Inc.

Inventor： LEE, Jeongho ,  LEE, Changgun ,  LEE, Sangchul ,  KIM, Taekyung ,  JUNG, Younggyu

IPC: F04D29/44

Abstract: A vacuum suction unit (1) is provided. The vacuum suction unit (1) includes a cover (10), an impeller (20), a motor, a guide device (30) which includes a guide body (310) and a guide vane (330), a flow guide (50) which is disposed below the guide device (30) and guides the air guided by the guide device (30) toward the stator (80), and a motor housing (60) which accommodates the motor and includes an air outlet (602). Here, a guide surface (501) at least a part of which has a diameter reduced as getting downward is formed at a bottom surface of the flow guide (50), the guide vane (330) includes a first guide vane (331) which is provided on a side of the guide body (310) and guides the air ejected from the impeller (20), and an inlet angle (θ1) of the first guide vane (331) is within a range from 10 to 25 degrees.

Abstract translation: 提供真空抽吸单元（1）。 真空抽吸单元（1）包括盖（10），叶轮（20），马达，包括引导体（310）和导叶（330）的引导装置（30），流动引导件 ），其被布置在所述引导装置（30）的下方，并且将由所述引导装置（30）引导的空气朝向所述定子（80）引导;以及马达壳体（60），其容纳所述马达并且包括空气出口（602）。 这里，导流部（50）的底面形成有至少一部分直径减小的引导面（501），该导向叶片（330）包括：第一导叶（331） 设置在引导体（310）的一侧，并且引导从叶轮（20）喷出的空气，并且第一导叶（331）的入口角（¸1）在10至25度的范围内。