Laundry treating apparatus

Patent metadata

Field	Value
Publication number	US-10329081-B2
Application number	US-201715595390-A
Country	US
Kind code	B2
Filing date	May 15, 2017
Priority date	May 16, 2016
Publication date	Jun 25, 2019
Grant date	Jun 25, 2019

Abstract

A laundry treating apparatus is disclosed. The laundry treating apparatus includes a cabinet configured to define a receiving space for receiving laundry, the cabinet having an open surface, a door hingedly provided at the cabinet for opening and closing the open surface of the cabinet, a laundry support unit provided in the receiving space for supporting laundry, and a machinery compartment provided in the cabinet for defining a space that is separate from the receiving space, the machinery compartment being provided therein with an air supply unit for dehumidifying or heating air in the receiving space and supplying the dehumidified or heated air into the receiving space. The air supply unit dehumidifies air in a room that communicates with the receiving space in the state in which the door is open.

First claim

What is claimed is:

1. A laundry treating apparatus comprising:
a cabinet configured to define a receiving space for receiving laundry, the cabinet having an open surface;
a door hingedly provided at the cabinet for opening and closing the open surface of the cabinet;
a laundry support unit provided in the receiving space for supporting laundry;
a machinery compartment provided in the cabinet for defining a space that is separate from the receiving space, the machinery compartment being provided therein with an air supply unit for dehumidifying or heating air in the receiving space and supplying the dehumidified or heated air into the receiving space;
an opening and closing sensing unit for sensing whether the door is open or closed; and
a controller receiving information about whether the door is open or closed from the opening and closing sensing unit and controlling the operation of the air supply unit,
wherein the controller controls a temperature of air supplied by the air supply unit when the door is open is lower than a temperature of air that is supplied by the air supply unit when the door is closed, and wherein the air supply unit comprises:
a circulation duct provided in the machinery compartment for circulating the air in the receiving space; and
a heat exchanger configured to circulate a refrigerant so as to constitute a refrigerating cycle, the heat exchanger being configured to dehumidify or heat air in the circulation duct through heat exchange.

2. The laundry treating apparatus according to claim 1 , wherein the heat exchanger comprises:
an evaporator provided in the circulation duct for dehumidifying the air introduced into the circulation duct;
a condenser provided in the circulation duct for heating the air that has passed through the evaporator; and
a compressor and an expansion valve provided outside the circulation duct for supplying the refrigerant to the evaporator and the condenser.

3. The laundry treating apparatus according to claim 2 , wherein the controller is configured to control an operation of the heat exchanger.

4. The laundry treating apparatus according to claim 3 , wherein the controller differently controls a driving frequency of the compressor and an opening degree of the expansion valve depending on whether the door is open or closed.

5. The laundry treating apparatus according to claim 4 , wherein the controller performs control such that the driving frequency of the compressor and the opening degree of the expansion valve in the state in which the door is open are lower than the driving frequency of the compressor and the opening degree of the expansion valve in a state in which the door is closed.

6. The laundry treating apparatus according to claim 2 , further comprising a drainage tank for storing condensed water generated in the evaporator.

7. The laundry treating apparatus according to claim 3 , further comprising:
an air suction unit provided in one surface of the machinery compartment so as to communicate with one end of the circulation duct for introducing the air in the receiving space into the circulation duct; and
an air discharge unit provided in one surface of the machinery compartment so as to communicate with the other end of the circulation duct for discharging the air in the circulation duct into the receiving space.

8. The laundry treating apparatus according to claim 1 , wherein the machinery compartment further comprises a moisture supply unit for supplying moisture into the receiving space.

9. The laundry treating apparatus according to claim 8 , further comprising a moisture discharge unit provided in one surface of the machinery compartment so as to communicate with the moisture supply unit for supplying moisture generated in the moisture supply unit into the receiving space.

10. The laundry treating apparatus according to claim 8 , wherein the moisture supply unit comprises:
a moisture supply pipe connected to a water supply tank;
a steam generator configured to generate steam from water supplied through the moisture supply pipe; and
a steam supply pipe for supplying the steam generated by the steam generator into the receiving space.

11. The laundry treating apparatus according to claim 1 , wherein the laundry support unit is configured to reciprocate in the receiving space.

12. The laundry treating apparatus according to claim 1 , further comprising:
a connection member configured to connect the door and the cabinet to each other such that the door selectively opens and closes the receiving space,
wherein the connection member supports the door such that the door is maintained at a predetermined opening angle.

13. The laundry treating apparatus according to claim 1 , further comprising:
a manipulation unit for selecting a dehumidification mode in which air in a room communicating with the receiving space is dehumidified in a state in which the door is open such that the dehumidification mode is executed in the machinery compartment,
wherein the controller receives information for controlling the laundry treating apparatus from the manipulation unit and controls the operation of the air supply unit.

14. The laundry treating apparatus according to claim 13 ,
wherein the opening and closing sensing unit further senses an opening angle of the door,
wherein the controller receives information the opening angle of the door from the opening and closing sensing unit.

15. The laundry treating apparatus according to claim 14 , further comprising:
a display unit configured to output an error message upon determining that the door is closed or the door is open to a predetermined angle or less when the dehumidification mode is selected or during execution of the dehumidification mode.

16. The laundry treating apparatus according to claim 14 , further comprising:
a speaker unit,
wherein the controller performs control such that an alarm or an information announcement is output through the speaker unit upon determining that the door is closed or the door is open to a predetermined angle or less when the dehumidification mode is selected or during execution of the dehumidification mode.

17. The laundry treating apparatus according to claim 14 , wherein the amount of dehumidification of the air is changed according to the angle of the door.

18. The laundry treating apparatus according to claim 14 , wherein the dehumidifying performance of the air supply unit is varied by the controller with sensing the opening degree of the door.

Assignees

• Lg Electronics Inc

Inventors

• Nam Wansik
• Kim Donghyun
• Park Jumin

Classifications

• D06F2103/50

  related to heat pumps, e.g. pressure or flow rate · CPC title

• D06F2105/26

  Heat pumps · CPC title

• A61L2103/50

  Textiles, e.g. bedwear or towels · CPC title

• D06F58/20

  General details of domestic laundry dryers  (D06F59/00 takes precedence) · CPC title

• F24F3/1405

  in which the humidity of the air is exclusively affected by contact with the evaporator of a closed-circuit cooling system or heat pump circuit · CPC title