Multi dust-collecting apparatus

• US 20060230723A1
• Filed: 12/23/2005
• Published: 10/19/2006
• Est. Priority Date: 03/29/2005
• Status: Active Grant

• Current Assignee: Samsung Gwangju Electronics Co., Ltd. (Samsung Electronics Co. Ltd.)
• Original Assignee: Samsung Gwangju Electronics Co., Ltd. (Samsung Electronics Co. Ltd.)
• Inventors: Han, Jung-gyun, Kim, Min-ha, Oh, Jang-keun
• Granted Patent: US 7,547,338 B2
• Time in Patent Office: Days
• US Class Current: 55/345
• CPC Class Codes: A47L 9/102 Dust separators cyclones A47L9/16
• CPC Class Codes: A47L 9/1641 for parallel flow
• CPC Class Codes: B01D 45/02 by utilising gravity
• CPC Class Codes: B01D 45/04 by utilising inertia B01D45/12 takes precedence
• CPC Class Codes: B01D 45/12 by centrifugal forces centrifuges B04B; cyclones B04C
• CPC Class Codes: B01D 50/20 Combinations of devices covered by groups B01D45/00 and B01D46/00
• CPC Class Codes: Y10S 55/03 Vacuum cleaner

Abstract

A multi dust-collecting apparatus for a vacuum cleaner is provided. The apparatus includes a dust-collecting unit having an air guide member to separate dirt particles from drawn-in air by using a gravity and an inertia and a filter member to remove dirt particles from the discharged air. The apparatus also includes a plurality of cyclones to swirl the air discharged from the dust-collecting unit and separate minute dirt particles from the air by using a centrifugal force.

Claims

1. A multi dust-collecting apparatus comprising:

a first dust-collector having a bottom connected with an air suction pipe through which an external air is drawn in, the first dust-collector separateing dirt particles from the air drawn in through the air suction pipe using an gravity and an inertia and collecting the separated dirt particles therein;

a second dust-collector arranged around the first dust-collector to centrifugally separate minute dirt particles from the air drawn in from the first dust-collector and collect the separated minute dirt particles therein; and

a cover unit disposed above the first and the second dust-collectors to guide the air discharged from the first dust-collector toward the second dust-collector and discharge the air discharged from the second dust-collector to the outside,

wherein the first dust-collector comprises;

a cylindrical first dust-collecting receptacle having a first inlet connected with the air suction pipe and a first outlet to discharge the air, the first dust-collecting receptacle collecting therein the dirt particles separated from the air; and

an air guide member disposed inside the first dust-collecting receptacle and guiding the air drawn in through the first inlet in the direction of an inside surface of the first dust-collecting receptacle such that the dirt particles are separated from the air by the gravity and the inertia.

2. The multi dust-collecting apparatus as claimed in claim 1, wherein the air guide member has an arc shape having a predetermined radius of curvature.

3. The multi dust-collecting apparatus as claimed in claim 2, wherein the air guide member has an end which has a predetermined height from the bottom of the first dust-collecting receptacle and is disposed away from the inside surface of the first dust-collecting receptacle by a predetermined distance.

4. The multi dust-collecting apparatus as claimed in claim 3, wherein the end of the air guide member inclines downwardly and towards the bottom of the first dust-collecting receptacle.

5. The multi dust-collecting apparatus as claimed in claim 1, wherein the first dust-collector further comprises a filter member disposed at an air flow passage adjacent to the first outlet to remove dirt particles from the air discharged towards the first outlet.

6. The multi dust-collecting apparatus as claimed in claim 1, wherein the first dust-collector further comprises a dirt movement prevention member protruding from the bottom of the first dust-collecting receptacle to a predetermined height to prevent the dirt particles collected on the bottom of the first dust-collecting receptacle from turning back to the first inlet.

7. The multi dust-collecting apparatus as claimed in claim 1, wherein the second dust-collector comprises:

a second dust-collecting receptacle forming an exterior contour of the second dust-collector and collecting the minute dirt particles separated from the air therein; and

a plurality of cyclones arranged along an inner circumference of the second dust-collecting receptacle to centrifugally separate the minute dirt particles from the air drawn in from the first dust-collector,

wherein each cyclone comprises;

a cyclone chamber to centrifugally separate the minute dirt particles from the air drawn in from the first dust-collector;

a chamber wall disposed between the first dust-collecting receptacle and the second dust-collecting receptacle and forming the cyclone chamber;

a second inlet to draw the air discharged from the first dust-collector into the cyclone chamber; and

a second outlet to discharge the air separated from the minute dirt particles in the cyclone chamber to the outside.

8. The multi dust-collecting apparatus as claimed in claim 7, wherein the cover unit comprises:

a cover;

air inflow guide channels fluidly communicating with the first outlet of the first dust-collector and the second inlets of the cyclones;

air outflow guide channels fluidly communicating with the second outlets of the cyclones; and

an air discharge pipe disposed on the cover to gather the air discharged from the respective air outflow guide channels and discharge the air to the outside.

9. A multi dust-collecting apparatus comprising:

a dust-collecting unit having an air guide member to separate dirt particles from drawn-in air by using a gravity and an inertia and a filter member to remove dirt particles from the discharged air; and

a plurality of cyclones to swirl the air discharged from the dust-collecting unit and separate minute dirt particles from the air by using a centrifugal force.

10. The multi dust-collecting apparatus as claimed in claim 9, further comprising a cover unit having a guide channel to guide the air discharged from the dust-collecting unit towards the plurality of cyclones and an air discharge pipe to guide the air discharged from the plurality of cyclones to the outside.

11. The multi dust-collecting apparatus as claimed in claim 10, wherein the plurality of cyclones are arranged along the dust-collecting unit.