Autonomous vacuum cleaner

Patent metadata

Field	Value
Publication number	US-9572467-B2
Application number	US-201313896822-A
Country	US
Kind code	B2
Filing date	May 17, 2013
Priority date	May 17, 2012
Publication date	Feb 21, 2017
Grant date	Feb 21, 2017

Abstract

An autonomous vacuum cleaner comprising a main body having a dirty air inlet, a clean air outlet, an airflow path between the dirty air inlet and the clean air outlet and a primary separating apparatus arranged in the air flow path between the dirty air inlet and the clean air outlet. The primary separating apparatus comprises at least one cyclone, and the main body further includes a secondary separating apparatus in the airflow path downstream of the primary separating apparatus. The secondary separating apparatus comprises a container for holding dirt and debris which has an air inlet and a filter element, wherein the container is arranged in the air flow such that air flows into the container through the air inlet and out of the container through the filter element. The secondary separating apparatus is removable.

First claim

The invention claimed is:

1. An autonomous vacuum cleaner comprising a main body having a dirty air inlet, a clean air outlet, an airflow path between the dirty air inlet and the clean air outlet and a primary separating apparatus arranged in the air flow path between the dirty air inlet and the clean air outlet, the primary separating apparatus comprising at least one cyclone, wherein the main body further includes a secondary separating apparatus in the airflow path downstream of the primary separating apparatus, the secondary separating apparatus comprising a container and a filter element, wherein the container is arranged in the air flow such that air flows through the container and the filter element, wherein the secondary separating apparatus is removable from the main body independently of the primary separating apparatus.

2. The autonomous vacuum cleaner of claim 1 , wherein the main body defines a docking bay portion into which the primary separating apparatus is receivable, the docking bay portion having a wall that is shaped to complement the outer side profile of the separating apparatus.

3. The autonomous vacuum cleaner of claim 2 , wherein the secondary separating apparatus is receivable in a recess defined in the docking bay portion and includes a closure member that defines an air inlet of the secondary separating apparatus and a portion of the wall of the docking bay portion.

4. The autonomous vacuum cleaner of claim 3 , wherein the closure member abuts an outlet of the primary separating apparatus when the primary separating apparatus is docked on the docking bay portion.

5. The autonomous vacuum cleaner of claim 4 , wherein the closure member defines a gripping portion for a user to grasp the closure member in order to remove and replace the secondary separating apparatus.

6. The autonomous vacuum cleaner of claim 1 , wherein the filter element is pleated.

7. The autonomous vacuum cleaner of claim 1 , wherein the primary separating apparatus includes an inlet duct extending tangentially therefrom and which is engageable with a fluid conduit of a cleaner head carried by the main body.

8. The autonomous vacuum cleaner of claim 1 , including an airflow generator for generating an airflow along the airflow path from the dirty air inlet to the clean air outlet.

9. The autonomous vacuum cleaner of claim 8 , wherein the airflow generator is positioned downstream of the secondary separating apparatus.

10. The autonomous vacuum cleaner of claim 9 , wherein a second filter element is positioned downstream of the airflow generator.

11. The autonomous vacuum cleaner of claim 10 , wherein the second filter element is incorporated in a removable external panel.

12. The vacuum cleaner of claim 1 , wherein the separating apparatus comprises a first upstream cyclone and a plurality of second cyclones arranged in parallel with one another and located downstream of the first cyclone.

13. The vacuum cleaner of claim 12 , wherein the upstream cyclone is generally cylindrical in shape, and wherein the plurality of downstream cyclones are frusto-conical in shape.

14. An autonomous vacuum cleaner comprising a main body having a dirty air inlet, a clean air outlet, an airflow path between the dirty air inlet and the clean air outlet and a primary separating apparatus arranged in the air flow path between the dirty air inlet and the clean air outlet, the primary separating apparatus comprising at least one cyclone, wherein the main body further includes a secondary separating apparatus in the airflow path downstream of the primary separating apparatus, the secondary separating apparatus comprising a container and a filter element, wherein the container is arranged in the air flow such that air flows through the container and the filter element, wherein the secondary separating apparatus includes a closure member that defines an air inlet into the container, the closure member abuts an outlet of the primary separating apparatus, and the secondary separating apparatus is removable from the main body independently of the primary separating apparatus.

15. The autonomous vacuum cleaner of claim 14 , wherein the main body defines a docking bay portion into which the primary separating apparatus is receivable, the docking bay portion having a wall that is shaped to complement the outer side profile of the separating apparatus.

16. The autonomous vacuum cleaner of claim 15 , wherein the secondary separating apparatus is receivable in a recess defined in the docking bay portion and the closure member is shaped to define a portion of the wall of the docking bay portion.

17. The autonomous vacuum cleaner of claim 16 , including a suction generator, and wherein the secondary separating apparatus is located directly upstream of the suction generator in a direction of airflow.

18. The autonomous vacuum cleaner of claim 17 , including a further filter element that is positioned downstream from the suction generator.

19. The autonomous vacuum cleaner of claim 18 , wherein the further filter element is provided in an external panel of the vacuum cleaner and wherein the panel is removable from the vacuum cleaner.

Assignees

• Dyson Technology Ltd

Inventors

• Dyson James
• Gammack Peter David
• Vanderstegen-Drake Mark Stamford
• Steadman Guillaume Kristian

Classifications

• A47L9/1683

  Dust collecting chambers; Dust collecting receptacles · CPC title

• A47L9/1658

  Construction of outlets · CPC title

• A47L2201/00

  Robotic cleaning machines, i.e. with automatic control of the travelling movement or the cleaning operation · CPC title

• A47L9/16

  Arrangement or disposition of cyclones or other devices with centrifugal action · CPC title

• A47L9/1691

  Mounting or coupling means for cyclonic chamber or dust receptacles · CPC title