Cyclone dust collecting apparatus for a vacuum cleaner

• US 20020178701A1
• Filed: 02/26/2002
• Published: 12/05/2002
• Est. Priority Date: 05/31/2001
• Status: Abandoned Application

• Current Assignee: Samsung Gwangju Electronics Co., Ltd. (Samsung Electronics Co. Ltd.)
• Original Assignee: Samsung Gwangju Electronics Co., Ltd. (Samsung Electronics Co. Ltd.)
• Inventors: Oh, Jang-keun, Choi, Min-jo
• Application Number:
  US10/083,086
• Publication Number:
  US 20020178701A1
• Time in Patent Office: Days
• US Class Current: 55/337
• CPC Class Codes: A47L 9/1666 with filtering means
• CPC Class Codes: B01D 45/16 generated by the winding course of the gas stream , the centrifugal forces being generated solely or partly by mechanical means, e.g. fixed swirl vanes

Abstract

A cyclone dust-collecting apparatus for a vacuum cleaner includes: a cyclone body for separating filth from air drawn through an air-suction passage and for discharging cleaned air through an air-discharging passage; and a filth backflow-preventing member for shifting an advancing direction of the filth in the air flowing to the air-discharging passage to a whirling air current along an inner side of the cyclone body. The cyclone dust-collecting apparatus is capable of improving the dust-collecting function of the vacuum cleaner by preventing filth, which may not have been separated from the whirling air current, from being drawn to a vacuum-generating device of the vacuum cleaner.

Claims

1. A cyclone dust-collecting apparatus for a vacuum cleaner, comprising:

a cyclone body configured to separate filth from dirt-laden air drawn through an air-suction passage using a centrifugal force, and further configured to discharge clean air through an air-discharging passage; and

a filth backflow-preventing member configured to shift an advancing direction of filth included in the dirt-laden air from flowing to the air-discharging passage to a whirling air current along an inner side of the cyclone body.

2. The cyclone dust-collecting apparatus for a vacuum cleaner of claim 1, wherein the filth backflow-preventing member is disposed at a lower part of a grill, and wherein the grill is formed at a lower part of the air-discharging passage for preventing filth from being drawn therein.

3. The cyclone dust-collecting apparatus for a vacuum cleaner of claim 1, wherein the filth backflow-preventing member comprises a sloping side declined about 5°

to about 60°

towards a suction direction of the air current.

4. The cyclone dust-collecting apparatus for a vacuum cleaner of claim 1, wherein the filth backflow-preventing member is further configured to extend to the inner side of the cyclone body.

5. The cyclone dust-collecting apparatus for a vacuum cleaner of claim 1, wherein a distance between a front end of the filth backflow-preventing member and the inner side of the cyclone body is about 10 mm to about 20 mm.