Vacuum cleaner

• US 7,475,449 B2
• Filed: 12/21/2004
• Issued: 01/13/2009
• Est. Priority Date: 12/24/2003
• Status: Expired due to Fees

• Current Assignee: Dongbu Daewoo Electronics Corporation
• Original Assignee: Dongbu Daewoo Electronics Corporation
• Inventors: Lee, Jae Duck
• Primary Examiner(s): Redding; David A
• Application Number:
  US11/016,865
• Publication Number:
  US 20050138756A1
• Time in Patent Office: 1,484 Days
• Field of Search: 153/26, 154/12, 154/13
• US Class Current: 15/326
• CPC Class Codes: A47L 9/00 Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
• CPC Class Codes: A47L 9/0081 Means for exhaust-air diffusion; Means for sound or vibration damping
• CPC Class Codes: A47L 9/122 flat
• CPC Class Codes: A47L 9/22 Mountings for motor fan assemblies
• CPC Class Codes: A47L 9/26 Incorporation of winding devices for electric cables devices specially adapted for repeatedly paying-out or re-storing cables B65H75/34; arrangements of electrical cables or lines between relatively-movable parts H02G11/00

Abstract

A vacuum cleaner includes a main body, a motor assembly installed at the main body, the motor assembly including a motor for generating a suction force, an exhaust filter for filtering fine foreign substances from air passing through the motor assembly, and a guide member for guide a portion of air going via the exhaust filter to the inside of the main body. The guide member has a horizontal guide member and a vertical guide member for guiding portions of air passing through the exhaust filter to the side and the top of the main body respectively.

Claims

1. A vacuum cleaner comprising:

a main body;

a motor assembly installed at the main body, the motor assembly including a motor for generating a suction force;

an exhaust filter for filtering fine foreign substances from air passing through the motor assembly;

a guide member for guiding a plurality of portions of air from the exhaust filter to the inside of the main body; and

a sound-absorbing case for reducing the noise of the motor,

wherein the sound-absorbing case is installed in the housing to surround a cylindrical body of the motor and has a plurality of air passing holes for passing an air from the motor therethrough, and

wherein diameters of the air passing holes become smaller gradually along an air flow direction.

2. The vacuum cleaner of claim 1, wherein the guide member includes a horizontal guide member and a vertical guide member for guiding first and second portions of the plurality of portions of air passing through the exhaust filter to the side and the top of the main body respectively.

3. The vacuum cleaner of claim 1, further comprising a cord reel configured to hold an electrical cord for supplying a power to the vacuum cleaner and a plurality of electric components, wherein the guide member guides the plurality of portions of air passing through the exhaust filter to the cord reel and the electric components.

4. The vacuum cleaner of claim 3, wherein the cord reel is installed at one side of the motor and the electric components are disposed at a top portion inside the main body.

5. The vacuum cleaner of claim 4, wherein the cord reel includes a number of through-holes for passing a second portion of the plurality of portions of air guided by the guide member therethrough and a plurality of curved ribs for guiding the second portion of the air to respective through-holes.

6. The vacuum cleaner of claim 4, further comprising a cover defining a top of the main body, wherein the cover is provided with a plurality of vertical guide ribs.

7. The vacuum cleaner of claim 1, wherein the air passing holes are equally spaced apart from each other in a circumferential direction of a bottom wall of the sound-absorbing case.

8. A vacuum cleaner comprising:

a main body;

a motor, installed at the main body, for generating a suction force;

an exhaust filter, provided at a rear portion of the main body, for filtering fine foreign substances from air passing through the motor;

a sound-absorbing case for reducing the noise of the motor;

a housing for mounting the motor and the sound-absorbing case therein;

a filter plate for installing the exhaust filter thereon;

a bracket for fixing the housing and the filter plate to the main body; and

a guide unit for guiding a plurality of portions of air from the exhaust filter to the inside of the main body.

9. The vacuum cleaner of claim 8, wherein the guide unit includes a guide portion horizontally extending from the bracket for guiding a first portion of the plurality of portions of air passing through the exhaust filter to a side portion of the main body, and an opening formed at the filter plate, wherein the opening guides the first portion of air from the exhaust filter to the side portion of the main body.

10. The vacuum cleaner of claim 9, wherein the guide unit further includes a cover defining a top of the main body, the cover having a plurality of vertical guide ribs for guiding a first portion of the plurality of portions of air passing through the exhaust filter to a top portion of the main body.