Vacuum cleaner
AssigneeAB Electrolux
InventorsTommy Andersson, Magnus Wennerström, Henrik Nygren, Gunnar Lundmark
Life of this patent
Estimating the term…
Abstract
The present disclosure relates to a vacuum cleaner comprising an electric motor 3 and a blower producing an air flow through the vacuum cleaner. The electric motor and the blower are placed on a common vertical axis 17. A separator unit 13 is placed laterally with respect to the common axis of the motor and the blower. A bent conduit 19 connects the blower with the separator unit, and one end 21 of the conduit encloses the common vertical axis. The conduit comprises a portion located along the common axis 17 having a double wall forming a closed air pocket 23. This provides damping of noise emitted by the blower/motor and which propagates in the opposite direction of the air flow.
Claims17
A vacuum cleaner comprising:
- a casing;
- an electric motor mounted within the casing;
- a blower mounted within the casing and connected to the electric motor to generate an air flow, the blower and the electric motor being aligned along a common vertical axis;
- a separator unit operatively associated with the casing and configured to separate dust from the air flow, the separator unit being laterally offset, relative to the common vertical axis, from the electric motor and the blower;
- a bent conduit fluidly connecting the separator unit to the blower, wherein a first end of the conduit extends over the common vertical axis;
- and
- wherein a portion of a wall forming the conduit located directly above the common vertical axis comprises a double wall connected by a seal to form a closed air pocket above the common vertical axis.
A vacuum cleaner comprising:
- a casing;
- an electric motor mounted within the casing;
- a blower mounted within the casing and connected to the electric motor to generate an air flow, the blower and the electric motor being aligned along a common vertical axis;
- a separator unit operatively associated with the casing and configured to separate dust from the air flow, the separator unit being laterally offset, relative to the common vertical axis, from the electric motor and the blower;
- a conduit formed by a first lid connected to the casing, the conduit fluidly connecting the separator unit to the blower, wherein a first end of the conduit extends over the common vertical axis;
- a second lid connected to the casing and covering the first lid, wherein the second lid has the same general shape as the first lid as viewed along the common vertical axis, and
- a seal connecting the first lid to the second lid to form an enclosed air pocket between the second lid and the first lid.
A vacuum cleaner comprising:
- a casing;
- an electric motor mounted within the casing;
- a blower mounted within the casing and connected to the electric motor to generate an air flow, the blower and the electric motor being aligned along a common vertical axis;
- a separator unit operatively associated with the casing and configured to separate dust from the air flow, the separator unit being laterally offset, relative to the common vertical axis, from the electric motor and the blower;
- a bent conduit fluidly connecting the separator unit to the blower, wherein a first end of the conduit extends over the common vertical axis;
- wherein a portion of a wall forming the conduit located directly above the common vertical axis comprises a double wall forming a closed air pocket above the common vertical axis;
- wherein the closed air pocket is formed between a first lid and a second lid that are attached to the casing;
- and
- wherein the casing comprises a first groove and a first seal is positioned in the first groove, and the second lid comprises a first flange that projects from the second lid and is received in the first groove.
Dependencies are inferred from the claim text.