Vacuum cleaner

• US 20050198768A1
• Filed: 12/08/2004
• Published: 09/15/2005
• Est. Priority Date: 03/11/2004
• Status: Active Grant

• Current Assignee: LG Electronics, Inc. (LG Corporation)
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: Jung, Jae Duck, Sung, Ha Jong
• Granted Patent: US 7,779,507 B2
• Time in Patent Office: Days
• US Class Current: 15/353
• CPC Class Codes: A47L 5/30 with driven dust-loosening tools, e.g. rotating brushes
• CPC Class Codes: A47L 5/362 of the horizontal type, e.g. canister or sledge type
• CPC Class Codes: A47L 9/0444 for conveying motion by endless flexible members, e.g. belts
• CPC Class Codes: A47L 9/0477 Rolls
• CPC Class Codes: A47L 9/106 Dust removal
• CPC Class Codes: A47L 9/127 tube- or sleeve-shaped
• CPC Class Codes: A47L 9/1658 Construction of outlets
• CPC Class Codes: A47L 9/1666 with filtering means
• CPC Class Codes: A47L 9/1683 Dust collecting chambers; Dust collecting receptacles
• CPC Class Codes: A47L 9/183 Spray cleaning

Abstract

Disclosed is a vacuum cleaner including a suction nozzle; a dust collecting assembly including a dust collecting container having an opened top surface, a top lid for opening and closing the top of the dust collecting container, an inlet, a filtering device provided in the dust collecting container, a separation plate for preventing the impurities collected in a lower part of the dust collecting container from being risen by air flow, and an outlet for discharging clean air; and a cleaner body including a dust collecting assembly receiving recess for detachably receiving the dust collecting assembly, a polluted air outlet coupled with the inlet of the dust collecting assembly, and a clean air inlet provided on an inner wall of the dust collecting assembly receiving recess, so as to face the direction of mounting the dust collecting assembly, and communicating with the outlet of the dust collecting assembly, and a clean air conduit having a fan provided therein and discharging the clean air to the outside of the vacuum cleaner.

Claims

1. A vacuum cleaner, comprising:

a suction nozzle for sucking an air containing impurities by operation of a motor;

a dust collecting assembly including;

a dust collecting container having a dust collecting space for collecting impurities therein and having an opened top;

a top lid for opening and closing the top of the dust collecting container;

an inlet for sucking the polluted air to the inside of the dust collecting container;

a filtering device detachably provided in the dust collecting container for filtering impurities such as dust;

a separation plate for preventing the impurities collected in a lower part of the dust collecting container from being risen by air flow; and

an outlet for exhausting clean air separated from the impurities to the outside of the dust collecting container; and

a cleaner body including;

a dust collecting assembly receiving recess for detachably receiving the dust collecting assembly;

a polluted air outlet provided at the dust collecting assembly receiving recess, and communicating with the inlet of dust collecting assembly for discharging the polluted air to the dust collecting assembly, the polluted air sucked through the suction nozzle;

a clean air inlet provided on an inner wall of the dust collecting assembly receiving recess so as to face the direction of mounting the dust collecting assembly and communicating with the outlet of the dust collecting assembly; and

a clean air conduit including a fan provided therein and rotated by the motor, wherein a first end of the clean air conduit is coupled to the clean air inlet and a second end of the clean air conduit has a clean air outlet for exhausting the clean air to the outside of the vacuum cleaner.

2. The vacuum cleaner of claim 1, wherein the top lid is detachably provided at the top of the dust collecting container.

3. The vacuum cleaner of claim 1, wherein the filtering device is detachably coupled to the top lid.

4. The vacuum cleaner of claim 3, wherein the top lid comprises a pass through hole perpendicularly bored such that the filtering device is inserted and withdrawn from an upper side of the top lid.

5. The vacuum cleaner of claim 4, wherein the filtering device is coupled on the top lid by means of a projector formed at a top end of the filtering device and a coupling lever provided on a top surface of the top lid for fixing the projector.

6. The vacuum cleaner of claim 1, wherein the filtering device comprises:

a filter formed in a cylindrical form for filtering impurities; and

a filter supporter for supporting the filter.

7. The vacuum cleaner of claim 1, wherein the filtering device is attached or detached from the front of the cleaner body.

8. The vacuum cleaner of claim 7, wherein the outlet of the dust collecting assembly is formed at a lower part of a rear side of the dust collecting container and the clean air inlet is formed at a lower part of a rear inner wall of the dust collecting assembly receiving recess.

9. The vacuum cleaner of claim 8, wherein the dust collecting assembly further comprises an inner flow tube having a first end communicating with the outlet of the dust collecting assembly and a second end communicating with the filtering device, thereby guiding clean air from the filtering device to the outside of the dust collecting container.

10. The vacuum cleaner of claim 9, wherein the inner flow tube of the dust collecting assembly comprises:

a first flow tube having a first end communicating with the outlet of the dust collecting assembly and a second end extended toward a center of the dust collecting container; and

a second flow tube having a first end connected to the second end of the first flow tube, and a second end extended upward to a lower end of the filtering device.

11. The vacuum cleaner of claim 10, wherein a connecting part of the first flow tube and the second flow tube is curved or inclined so as to minimize flow resistance of the clean air discharged from the dust collecting space.

12. The vacuum cleaner of claim 9, wherein the inner flow tube comprises a flow tube cover provided at the second end thereof so as to prevent the impurities from being flowed into the inside thereof.

13. The vacuum cleaner of claim 1, wherein the inlet of the dust collecting assembly is provided in a tangential direction at a predetermined location on a side of the dust collecting container such that the polluted air sucked into the inner space of the dust collecting container spirally flows.

14. The vacuum cleaner of claim 13, wherein the dust collecting assembly further comprises an anti rotation plate having a predetermined height and radially provided in the dust collecting container for preventing the impurities from being rotated by spiral air flow.

15. The vacuum cleaner of claim 1, wherein a bottom part of the dust collecting container is openable.

16. The vacuum cleaner of claim 15, wherein the dust collecting container comprises:

a top container having a top being openably and closably mounted thereon;

a bottom lid rotatably connected to a first side of the lower end of the top container for opening and closing a bottom of the top container; and

a lid fixing device provided at a second side of the lower end of the top container for selectively fixing the bottom lid.

17. The vacuum cleaner of claim 1, wherein the separation plate is opened by rotation when the impurities collected in the dust collecting container are exhausted.

18. The vacuum cleaner of claim 17, wherein the separation plate comprises two semicircular plates provided in the dust collecting container so that the semicircular plates rotate in an upper direction of the dust collecting container.

19. The vacuum cleaner of claim 1, wherein the cleaner body further comprises a packing member provided between the clean air inlet and the outlet of the dust collecting assembly for maintaining airtightness between the clean air inlet and the outlet of the dust collecting assembly.