Laundry treatment apparatus

Patent metadata

Field	Value
Publication number	US-9951455-B2
Application number	US-201514745068-A
Country	US
Kind code	B2
Filing date	Jun 19, 2015
Priority date	Jun 23, 2014
Publication date	Apr 24, 2018
Grant date	Apr 24, 2018

Abstract

A laundry treatment apparatus including a cabinet forming an appearance of the apparatus, a drum disposed in the cabinet and having a laundry space therein to for accommodate laundry, a rotating shaft for rotatably supporting the drum in the cabinet, a balancer including a housing fixed to the drum, an accommodation space defined in the housing, a balancing unit movably provided in the accommodation space, and a housing power line provided in the accommodation space to supply electric power to the balancing unit, a shaft through-hole formed through the rotating shaft, a first connecting line disposed in the shaft through-hole and connected to a power source, a second connecting line connected to the housing power line, and a connector for coupling the first connecting line to the second connecting line is disclosed.

First claim

What is claimed is:

1. A laundry treatment apparatus comprising:
a cabinet forming an appearance of the apparatus;
a drum disposed in the cabinet and having a laundry space therein to accommodate laundry;
a rotating shaft for rotatably supporting the drum in the cabinet;
a balancer comprising:
a housing fixed to the drum;
an accommodation space defined in the housing;
a balancing unit comprising a unit body movably provided in the accommodation space;
at least one wheel rotatably provided in the unit body;
a motor provided in the unit body and configured to rotate the at least one wheel;
and a brush provided in the unit body and configured to supply power to the motor; and

a housing power line provided in the accommodation space to be in contact with the brush to supply electric power to the motor;

a shaft through-hole formed through the rotating shaft;
a first connecting line disposed in the shaft through-hole and connected to a power source;
a second connecting line connected to the housing power line; and
a connector for coupling the first connecting line to the second connecting line,
wherein the housing power line is provided on a surface of the accommodation space that is located in a direction to which the unit body is driven by centrifugal force that is generated by rotation of the drum, and
wherein the brush is “M” shaped and two ends of the “M” shaped brush are fitted into sockets at a power terminal housing and upper curved portions of the brush contact the housing power line.

2. The laundry treatment apparatus of claim 1 , wherein the connector comprises:
a body part through which the second connecting line extends;
a coupling part provided at the body part to receive the first connecting line; and
a connecting part disposed in the coupling part to couple the first connecting line to the second connecting line.

3. The laundry treatment apparatus of claim 2 , wherein the body part is integrally formed with the housing.

4. The laundry treatment apparatus of claim 2 , further comprising:
a connector receptor provided at the drum and defining a space for accommodating the connector.

5. The laundry treatment apparatus of claim 4 , wherein the connector receptor is disposed at a longitudinally recessed area at a circumferential surface of the drum.

6. The laundry treatment apparatus of claim 4 , wherein the connector receptor protrudes from an inner circumferential surface of the drum so as to agitate laundry contained in the drum.

7. The laundry treatment apparatus of claim 2 , wherein the balancer includes a front balancer provided at a front position and a rear balancer provided at a rear position,
wherein the second connecting line includes a second front connecting line contacting the housing power line of the front balancer and a second rear connecting line contacting the housing power line of the rear balancer;
wherein the first connecting line includes a first front connecting line branched toward the front balancer and a first rear connecting line branched toward the rear balancer; and
wherein the connector includes a first connector for connecting the first front connecting line to the second front connecting line and a second connector for connecting the first rear connecting line to the second rear connecting line.

8. The laundry treatment apparatus of claim 7 , wherein the first connector has a body part integrally formed with a housing of the front balancer, and
the second connector has a body part integrally formed with a housing of the rear balancer.

9. The laundry treatment apparatus of claim 7 , further comprising:
a connector receptor provided at the drum and having a space for accommodating the first connector,
wherein the second connector has a body part integrally formed with a housing of the rear balancer.

10. The laundry treatment apparatus of claim 9 , wherein the connector receptor is disposed at a longitudinally recessed area at a circumferential surface of the drum.

11. The laundry treatment apparatus of claim 9 , wherein the connector receptor protrudes from an inner circumferential surface of the drum so as to agitate laundry contained in the drum.

12. The laundry treatment apparatus of claim 1 , further comprising:
a rotation transmission member fixed to a rear surface of the drum and to which the rotating shaft is coupled,
wherein the rotation transmission member includes a guider for receiving the first connecting line.

13. The laundry treatment apparatus of claim 12 , wherein the guider includes a groove formed at a surface contacting the drum.

14. The laundry treatment apparatus of claim 13 , wherein the guider comprises holding portions for preventing separation of the first connecting line from the groove.

15. The laundry treatment apparatus of claim 13 , wherein the rotation transmission member further comprises a branch hole through which the first connecting line passes.

16. The laundry treatment apparatus of claim 1 , further comprising:
a sealing member provided in the shaft through-hole to prevent introduction of washing water.

Assignees

• Lg Electronics Inc

Inventors

• Kim Kyeonghwan
• Kim Jaehyun
• Lee Jaehoon

Classifications

• D06F37/06

  Ribs, lifters, or rubbing means forming part of the receptacle · CPC title

• D06F37/225

  Damping vibrations by displacing, supplying or ejecting a material, e.g. liquid, into or from counterbalancing pockets · CPC title

• D06F37/04

  adapted for rotation or oscillation about a horizontal or inclined axis · CPC title

• D06F37/203 Primary

  Textiles & Paper · mapped topic

• D06F37/304

  Arrangements or adaptations of electric motors · CPC title