Dust collection unit of vacuum cleaner

• US 7,488,363 B2
• Filed: 09/23/2005
• Issued: 02/10/2009
• Est. Priority Date: 12/27/2004
• Status: Expired due to Fees

• Current Assignee: LG Electronics, Inc. (LG Corporation)
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: Park, Min, Kim, Young Ho, Hwang, Man Tae, Jeong, Hoi Kil, Hwang, Jung Bae
• Primary Examiner(s): Hopkins; Robert A
• Application Number:
  US11/232,859
• Publication Number:
  US 20060137307A1
• Time in Patent Office: 1,236 Days
• Field of Search: 553/37, 553/43, 553/46, 553/49, 554/26, 554/29, 554/591, 55D/IG.3
• US Class Current: 55/337
• CPC Class Codes: A47L 9/1625 for series flow
• CPC Class Codes: A47L 9/1641 for parallel flow
• CPC Class Codes: A47L 9/1683 Dust collecting chambers; Dust collecting receptacles
• CPC Class Codes: B04C 5/081 Shapes or dimensions
• CPC Class Codes: B04C 5/185 Dust collectors
• CPC Class Codes: B04C 5/24 Multiple arrangement thereof combination types according to other /00 groups, B04C7/00
• CPC Class Codes: Y10S 55/03 Vacuum cleaner

Abstract

A dust collecting unit of a vacuum cleaner is provided. The dust collecting unit includes: a plurality of storing chambers and a plurality of filtering chambers provided in the inside of a multi-cyclone dust collecting unit. To improve reliability of the product, the storing chambers and the filtering chambers are integrally formed as one body.

Claims

1. A dust collecting unit of a vacuum cleaner, comprising:

a collection body having a plurality of foreign object filtering chambers for filtering foreign objects and a plurality of foreign object storing chambers for storing foreign objects filtered from the foreign object filtering chambers;

a sealing member for closing a lower portion of the collection body; and

a separation plate formed horizontally at the collection body and having an exhaust member disposed at an upper side of the collection body, the exhaust member guiding airflow;

wherein the plurality of foreign object filtering chambers comprises;

a first foreign object filtering chamber disposed in an inner space of an inner wall extending to a downward direction of the separation plate; and

at least one second foreign object filtering chamber provided at an outer side of the first foreign object filtering chamber; and

wherein the plurality of foreign object storing chambers comprises;

a second storing chamber defined as a space between the inner wall and an intermediate wall spaced at an outside of the inner walk; and

a first storing chamber defined as an inner space of an outer wall spaced at an outside from the intermediate wall; and

wherein the first and second foreign object filtering chambers and the first and second foreign object storing chambers are formed as one body.

2. The dust collecting unit according to claim 1, wherein the inner wall and/or the intermediate wall and/or the outer wall have a thickness tapering toward a lower portion.

3. The dust collecting unit according to claim 1, wherein the second filtering chamber has a wall whose thickness tapers toward an upward direction.

4. The dust collecting unit according to claim 1, wherein the outer wall constitutes an outer wall of the dust collecting unit.

5. The dust collecting unit according to claim 1, wherein a lower end of the second foreign object filtering chamber is received in an inside of the second foreign object storing chamber.

6. The dust collecting unit according to claim 1, further comprising a gap forming member formed on an upper side spaced a predetermined distance from the exhaust member, for guiding air discharged from the second foreign object filtering chamber to one direction.

7. The dust collecting unit according to claim 1, wherein at least one point of the outer wall is angled to form an edge portion for collecting foreign objects.

8. The dust collecting unit according to claim 1, further comprising a filter made of plastic, disposed in an inside of the first foreign object filtering chamber, and having a plurality of openings, for collecting foreign objects.

9. The dust collecting unit according to claim 1, wherein the separation plate is injection-molded integrally with the plurality of foreign object filtering chambers.

10. The dust collecting unit according to claim 1, wherein the collection body is injection-molded as one body.

11. A dust collecting unit of a vacuum cleaner comprising:

a separation plate for portioning a space horizontally;

a collection body having, as one body;

a first foreign object filtering chamber formed in a lower side of the separation plate and having an upper wall defined by the separation wall;

a plurality of second foreign object filtering chambers formed at an outside of the first foreign object filtering chamber;

a first foreign object storing chamber formed in a lower portion of the first foreign object filtering chamber; and

a single foreign object storing chamber formed in a lower portion of the second foreign object filtering chambers;

a filter fixed as a separate member at a central portion of the separation plate;

a blocking member formed in a lower side of the filter, for partitioning the first and second foreign object storing chambers; and

an exhaust member for guiding airflow discharged from the foreign object filtering chamber.

12. The dust collecting unit according to claim 11, wherein the separation plate is formed integrally with the collection body.

13. The dust collecting unit according to claim 11, wherein the filter is made of solid plastic having an opening.

14. The dust collecting unit according to claim 11, wherein a chamber opened upward among the chambers has a wall whose thickness tapers toward an upward direction.

15. The dust collecting unit according to claim 11, wherein a chamber opened downward among the chambers has a wall whose thickness tapers toward a downward direction.

16. The dust collecting unit according to claim 11, wherein the collection body is injection-molded.

17. The dust collecting unit according to claim 11, further comprising a gap forming member formed in an upper side of the exhaust member, for guiding airflow discharged from the collection body to one direction.

18. A dust collecting unit of a vacuum cleaner comprising:

a collection body having, as one body;

a separation plate for portioning a space horizontally;

a first foreign object filtering chamber formed in a lower side of the separation plate and having an upper wall defined by the separation wall;

a plurality of second foreign object filtering chambers formed at an outside of the first foreign object filtering chamber;

a first foreign object storing chamber formed in a lower portion of the first foreign object filtering chamber; and

a single foreign object storing chamber formed in a lower portion of the second foreign object filtering chambers;

a communication cavity formed in a central portion of the separation plate and through which air from which foreign objects have been filtered by the first foreign object filtering chamber is discharged;

a filter for filtering relatively large foreign objects in air discharged from the communication cavity;

a blocking member formed in a lower side of the filter, for partitioning the first and second foreign object storing chambers; and

an exhaust member for guiding airflow discharged from the foreign object filtering chamber.

19. The dust collecting unit according to claim 18, wherein the collection body is injection-molded in an integral type and each of the chambers has a wall whose thickness tapers toward a direction of an opening.