FAN MOTOR APPARATUS HAVING DIFFUSER UNIT FOR VACUUM CLEANER

• US 20100209271A1
• Filed: 12/18/2009
• Published: 08/19/2010
• Est. Priority Date: 02/16/2009
• Status: Active Grant

• Current Assignee: Samsung Electronics Co. Ltd. (Samsung Group)
• Original Assignee: Samsung Electronics Co. Ltd. (Samsung Group)
• Inventors: YOO, Dong-hun
• Granted Patent: US 9,089,248 B2
• Time in Patent Office: Days
• US Class Current: 417/423.200
• CPC Class Codes: A47L 5/12 with power-driven air-pumps or air-compressors, e.g. driven by motor vehicle engine vacuum
• CPC Class Codes: A47L 5/22 with rotary fans
• CPC Class Codes: A47L 9/0081 Means for exhaust-air diffusion; Means for sound or vibration damping
• CPC Class Codes: A47L 9/102 Dust separators cyclones A47L9/16
• CPC Class Codes: A47L 9/122 flat
• CPC Class Codes: A47L 9/22 Mountings for motor fan assemblies
• CPC Class Codes: F04D 29/40 Casings; Connections of working fluid bleed or by-pass valves F04D15/0011, F04D27/0215
• CPC Class Codes: F04D 29/44 Fluid-guiding means, e.g. diffusers
• CPC Class Codes: F04D 29/441 especially adapted for elastic fluid pumps
• CPC Class Codes: F04D 29/70 Suction grids; Strainers; Dust separation; Cleaning

Abstract

A fan motor apparatus of a vacuum cleaner having a diffuser unit is provided. The fan motor apparatus of a vacuum cleaner includes a fan motor unit into and from which an air stream is introduced and discharged in the same direction, and a diffuser unit having an air suction area to discharge an air stream to the fan motor unit through a fluid passage surface, the fluid passage surface through which an air stream is drawn in and discharged out of the diffuser. An air discharge area of the diffuser unit may receive the air stream discharged from the fan motor unit, and distribute and discharge the air stream through a perimeter of the air suction area of the fluid passage surface.

Claims

1. A fan motor apparatus of a vacuum cleaner, the fan motor apparatus comprising:

a fan motor unit into and from which an air stream is introduced and discharged in the same direction; and

a diffuser unit comprising;

a fluid passage surface through which an air stream is drawn in and discharged out of the diffuser;

an air suction area to discharge an air stream to the fan motor unit; and

an air discharge area to receive the air stream discharged from the fan motor unit, and distribute and discharge the air stream through a perimeter of the air suction area of the fluid passage surface.

2. The fan motor apparatus of claim 1, wherein the diffuser unit comprises a passage partitioning wall formed therein to separate the air suction area and the air discharge area from each other.

3. The fan motor apparatus of claim 1, wherein the diffuser unit further comprises an inlet pipe formed at a center of the fluid passage surface to introduce the air stream into the air suction area.

4. The fan motor apparatus of claim 3, wherein the diffuser unit further comprises a discharge filter unit inserted in an outer side of the inlet pipe.

5. The fan motor apparatus of claim 1, wherein the diffuser unit further comprises a discharge filter fixing portion to fix the discharge filter unit on the fluid passage surface.

6. The fan motor apparatus of claim 5, wherein the discharge filter fixing portion comprises at least one of:

an outer circumferential discharge filter fixing portion into which a lower end of an outer casing forming an outer side of the discharge filter unit is inserted; and

an inner circumferential discharge filter fixing portion into which a lower end of an inner casing corresponding to the outer side of the inlet pipe of the discharge filter unit is inserted.

7. The fan motor apparatus of claim 6, wherein the outer circumferential discharge filter fixing portion and the inner circumferential discharging filter fixing portion further comprises a sealing member for sealing thereof.

8. The fan motor apparatus of claim 1, wherein the air discharge area is formed to have a larger size than the air suction area.

9. The fan motor apparatus of claim 1, wherein the diffuser unit comprises a discharge portion having a plurality of discharge holes formed in the fluid passage surface which corresponds to the discharge area.

10. The fan motor apparatus of claim 9, wherein the discharge portion is formed to surround the air suction area.

11. The fan motor apparatus of claim 1, wherein the diffuser unit comprises:

an upper diffuser cover having an inlet pipe formed on the fluid passage surface, an outlet portion formed on a surface of the fluid passage surface located on an outer side of the inlet pipe, and an upper cover passage partitioning wall extended toward a lower diffuser cover; and

the lower diffuser cover having a diffuser unit outlet portion, a diffuser unit inlet portion, and a lower cover passage partitioning wall extended toward the upper diffuser cover.

12. The fan motor apparatus of claim 1, wherein the air stream discharged from the air discharge area is in a direction opposite to the air stream introduced into the air suction area.

13. The fan motor apparatus of claim 12, wherein the air stream discharged from the air discharge area is discharged through a perimeter of the area where the air stream is introduced into the air suction area.

14. A diffuser apparatus for use in a fan motor apparatus of a vacuum cleaner, the diffuser apparatus comprising:

a fluid passage surface including an inlet pipe and a discharge area, the inlet pipe and discharge area positioned on the same side of the diffuser apparatus;

a suction area configured to receive an air stream from the inlet pipe;

a diffuser outlet portion configured to discharge the air stream to a fan motor unit of the fan motor apparatus;

a diffuser inlet portion configured to draw the air stream into the diffuser from the fan motor unit; and

a diffuser discharge area configured to discharge the air stream through the discharge area of the fluid passage surface.

15. The diffuser apparatus of claim 14, wherein the suction area, diffuser outlet portion, diffuser inlet portion and diffuser discharge area are positioned on at least one different side of the diffuser from the inlet pipe and discharge area of the fluid passage surface.

16. The diffuser apparatus of claim 14, wherein the discharge area of the fluid passage surface includes a plurality of discharge holes.