Drum washing machine

Patent metadata

Field	Value
Publication number	US-9695541-B2
Application number	US-201313966858-A
Country	US
Kind code	B2
Filing date	Aug 14, 2013
Priority date	Aug 16, 2012
Publication date	Jul 4, 2017
Grant date	Jul 4, 2017

Abstract

A drum washing machine and a control method thereof. The drum washing machine includes a cabinet, a tub including a first tub part and a second tub part, a drum, an inlet provided at one side of the second tub part and supplying condensed water, and at least one flow path provided on one surface from among the inner surfaces of the second tub part opposite the drum and guiding flow of the condensed water to increase a contact area between the condensed water supplied from the inlet and the second tub part. The drum washing machine improves the structure of the tub to effectively inject condensed water, and may thus increase condensing efficiency. Further, the drum washing machine improves the structures of the tub and the drying duct, and may thus prevent accumulation of lint and lowering of performance of the drum washing machine.

First claim

What is claimed is:

1. A drum washing machine comprising:
a cabinet;
a tub disposed within the cabinet;
a drum rotatably disposed within the tub;
a drying duct for flowing air for drying of laundry in the drum;
wherein the drying duct comprises
an upper plate;
a lower plate;
an air blower fan for circulation of air;
a mount part combined with a lower portion of the lower plate, the air blower fan being mounted in the mount part;
a connection member to connect the mount part with the tub, the mount part being located between the connection member and the lower plate;
a water supply pipe connector formed at one side of the mount part to inject wash water to the air blower fan; and
a plurality of first lint collection parts formed at an upper half of an inner circumferential surface of the mount part, each of the plurality of first lint collection parts being spaced apart from each other and configured to protrude vertically downward from the upper half of the inner circumferential surface of the mount part toward the tub to prevent inflow of lint into the air blower fan; and
a plurality of second lint collection parts protruding from an inner surface of the connection member toward a center of the connection member to collect lint.

2. The drum washing machine according to claim 1 , wherein the plurality of first lint collection parts also extend radially inward from the inner circumferential surface of the mount part toward a center of the mount part.

3. The drum washing machine according to claim 1 , wherein vertical dimensions of the plurality of first lint collection parts are different.

4. The drum washing machine according to claim 1 , wherein the width of the plurality of first lint collection parts is decreased in the extension direction of the plurality of first lint collection parts from the mount part.

5. The drum washing machine according to claim 1 , wherein the plurality of second lint collection parts is provided so as to surround the inner surface of the connection member.

6. The drum washing machine according to claim 1 , wherein the plurality of second lint collection parts is formed of a flexible material.

7. The drum washing machine according to claim 1 , wherein at least one communication part into which dry air at the outside of the tub flows is provided on at least one surface of the mount part.

8. The drum washing machine according to claim 7 , wherein the at least one communication part is formed by a concave surface formed on at least a portion of the mount part.

9. A drum washing machine comprising:
a cabinet;
a tub disposed within the cabinet;
a drum rotatably disposed within the tub; and
a drying duct in which an air blower fan circulating air to perform drying of laundry in the drum is located,
wherein the drying duct comprises
an upper plate;
a lower plate;
a mount part combined with a lower portion of the lower plate, the air blower fan being mounted in the mount part;
a connection member to connect the mount part to the tub, the mount part being located between the connection member and the lower plate;
first lint collection parts formed at an upper half of an inner circumferential surface of the mount part, the first lint collection parts being spaced apart from each other and configured to protrude vertically downward from the upper half of the inner circumferential surface of the mount part toward the tub to prevent inflow of lint into the air blower fan;

second lint collection parts provided on an inner surface of the connection member, the second lint collection parts include a plurality of protrusions formed in a circumferential direction of the inner surface of the connection member.

10. The drum washing machine according to claim 9 , wherein the first lint collection parts also extend radially inward from the inner circumferential surface of the mount part toward a center of the mount part.

Assignees

• Samsung Electronics Co Ltd

Inventors

• Kim Jin Doo
• Lee Jung Hyuk
• Lim Kyung Up
• Jun Nam Kyu
• Lee Yong Sok
• Lim Hyung Sub
• Kang Min Hee

Classifications

• D06F39/083 Primary

  Liquid discharge or recirculation arrangements · CPC title

• D06F25/00

  Washing machines with receptacles, e.g. perforated, having a rotary movement, e.g. oscillatory movement, the receptacle serving both for washing and for centrifugally separating water from the laundry and having further drying means, e.g. using hot air  (control of washing or of washing and drying D06F33/00, D06F34/00; domestic laundry dryers D06F58/00) · CPC title

• D06F58/22

  Lint collecting arrangements · CPC title

• D06F58/24 Primary

  Condensing arrangements · CPC title

• D06F37/263

  assembled from at least two elements connected to each other; Connecting or sealing means therefor · CPC title