Dirt separator system for a vacuum cleaner

• US 7,882,593 B2
• Filed: 01/18/2008
• Issued: 02/08/2011
• Est. Priority Date: 01/19/2007
• Status: Active Grant

• Current Assignee: AB Electrolux
• Original Assignee: AB Electrolux
• Inventors: Miefalk, Håkan, Danestad, Ulrik, Beskow, Jonas
• Primary Examiner(s): NGUYEN, DUNG V
• Application Number:
  US12/523,649
• Publication Number:
  US 20100083459A1
• Time in Patent Office: 1,117 Days
• Field of Search: 153/50, 153/52, 153/53, 153/28, 153/47, 553/37, 554/28, 554/29, 55D/IG.3
• US Class Current: 15/353
• CPC Class Codes: A47L 5/225 Convertible suction cleaners, i.e. convertible between different types thereof, e.g. from upright suction cleaners to sledge-type suction cleaners
• CPC Class Codes: A47L 5/24 Hand-supported suction cleaners
• CPC Class Codes: A47L 5/32 with means for connecting a hose hose couplings for suction cleaners A47L9/24
• CPC Class Codes: A47L 9/0081 Means for exhaust-air diffusion; Means for sound or vibration damping
• CPC Class Codes: A47L 9/165 Construction of inlets
• CPC Class Codes: A47L 9/248 Parts, details or accessories of hoses or pipes nozzles A47L9/02

Abstract

A vacuum cleaner having an elongated support body, a nozzle attached to a lower end of the elongated support body by an articulated joint, a motor, a fan unit, a debris container, and an air passage that extends from the nozzle device, past the articulated joint by a flexible hose and to an air passage in the support body. The flexible hose is formed with a generally rectangular cross section.

Claims

1. A cyclone separator for a vacuum cleaner, the cyclone separator comprising:

a debris container having an open end, a closed end, a sidewall extending from the open end to the closed end, and a cyclone inlet through the sidewall;

a filter insert having an end wall adapted to abut the open end of the debris container on a first side of the cyclone inlet, a cyclone outlet through the end wall, and a filtering portion extending inside the debris container from the end wall to a point past the cyclone inlet, the filtering portion comprising one or more filters through which air can pass to travel from the cyclone inlet to the cyclone outlet;

a partition wall extending from the filter insert towards the sidewall on a second side of the cyclone inlet, the second side being opposite the first side such that the cyclone inlet is located between the end wall and the partition wall;

a first directing portion extending from the partition wall towards the closed end of the debris container; and

a second directing portion extending from the end wall towards the closed end of the debris container;

wherein the first directing portion and the second directing portion direct airflow in the dirt container in a helical direction around the filter insert.

2. The cyclone separator of claim 1, wherein the first directing portion is adapted to direct cyclonic airflow moving between the partition wall and the closed end of the dirt container in a helical direction around the filter insert.

3. The cyclone separator of claim 1, wherein the second directing portion is adapted to direct cyclonic airflow moving between the partition wall and the end wall in a helical direction around the filter insert.

4. The cyclone separator of claim 1, wherein the filtering portion comprises one or more filter panels.

5. The cyclone separator of claim 1, wherein the filtering portion comprises a frame structure having one or more filter panels secured thereto.

6. The cyclone separator of claim 1, wherein the filter insert is removably connected to the debris container.

7. The cyclone separator of claim 1, wherein the partition wall extends at least about one quarter to half a distance around the filter insert.

8. The cyclone separator of claim 1, wherein first directing portion is curved.

9. The cyclone separator of claim 1, wherein second directing portion is curved.

10. The cyclone separator of claim 1, wherein the partition wall is integrally formed with the filter insert and extends from the filter insert to an inner surface of the debris container.

11. The cyclone separator of claim 1, further comprising a connecting wall extending from the end wall to the partition wall proximal to the cyclone inlet to restrict air from passing between the filter insert and the debris container at the location of the connecting wall.

12. The cyclone separator of claim 11, wherein the connecting wall comprises a curved wall.

13. The cyclone separator of claim 11, wherein the end wall, the partition wall, and the connecting wall form a cyclone passage between the filter insert and an inner surface of the debris container.

14. The cyclone separator of claim 13, wherein the cyclone passage extends around about a quarter to half a distance around the filter insert.

15. The cyclone separator of claim 13, wherein the cyclone passage has a cross sectional shape that matches an inlet air passage connected to the cyclone inlet.

16. The cyclone separator of claim 15, wherein the inlet air passage and the cyclone passage are generally rectangular.

17. A vacuum cleaner comprising:

a base having a dirty air inlet formed therein;

a directing handle connected to the dirty air inlet;

an air path extending from the dirty air inlet to a fan and associated motor, the fan and associated motor being adapted to selectively generate a working air flow into the dirty air inlet and through the air path;

a debris container selectively positioned in the air path, the debris container having an open end, a closed end, a sidewall extending from the open end to the closed end, and a cyclone inlet through the sidewall;

a filter insert having an end wall adapted to abut the open end of the debris container on a first side of the cyclone inlet, a cyclone outlet through the end wall, and a filtering portion extending inside the debris container from the end wall to a point past the cyclone inlet, the filtering portion comprising one or more filters through which air can pass to travel from the cyclone inlet to the cyclone outlet;

a partition wall extending from the filtering portion towards the sidewall on a second side of the cyclone inlet, the second side being opposite the first side such that the cyclone inlet is located between the end wall and the partition wall;

a first directing portion extending from the partition wall towards the closed end of the debris container; and

a second directing portion extending from the end wall towards the closed end of the debris container;

wherein the first directing portion and the second directing portion direct airflow in the dirt container in a helical direction around the filter insert.

18. The vacuum cleaner of claim 17, further comprising a connecting wall extending from the end wall to the partition wall proximal to the cyclone inlet to restrict air from passing between the filter insert and the debris container at the location of the connecting wall.

19. The cyclone separator of claim 18, wherein the end wall, the partition wall, and the connecting wall form a cyclone passage between the filter insert and an inner surface of the debris container.

20. The cyclone separator of claim 19, wherein the cyclone passage extends around about a quarter to half a distance around the filter insert.

21. The cyclone separator of claim 17, wherein:

the debris container is mounted along a lateral centerline of the directing handle and the cyclone inlet is offset from the lateral centerline of the directing handle; and

a first part of the air path fluidly connects the dirty air inlet to the cyclone inlet;

wherein at least a portion the first part of the air path is offset from the lateral centerline of the directing handle to selectively connect to the cyclone inlet.