Compressor including improved oil trap and home appliance including the compressor

1 . A compressor, comprising:

a case storing an oil therein;

a compression device disposed inside the case to compress a refrigerant introduced into the case;

a driving device disposed inside the case to drive the compression device; and

an oil trap portion for separating the refrigerant and the oil or collecting the separated oil when the compression device is operated,

the oil trap portion protruding from an outer surface of the case and being recessed from an inner surface of the case to form a space for accommodating the oil, the oil trap portion having a front wall and an unobstructed opening from the space to an inside of the inner surface of the case, the unobstructed opening having an area equal to or greater than an area of the front wall,

wherein the oil trap portion has at least a portion positioned in a cavity area of the case in which the compression device and the driving device are not disposed.

2 . The compressor of claim 1 ,

wherein the oil trap portion includes a plurality of walls surrounding the space and defining the space, and

wherein the plurality of walls include the front wall, an upper wall, a lower wall, and a side wall.

3 . The compressor of claim 2 , wherein the front wall of the plurality of walls has a circular or polygonal shape.

4 . The compressor of claim 2 , wherein the upper wall of the plurality of walls has a horizontal plane for blocking a flow of the oil accommodated in the space to an upper portion of the case.

5 . The compressor of claim 2 , wherein the lower wall of the plurality of walls has an inclined surface for guiding the oil accommodated in the space to a lower portion of the case.

6 . The compressor of claim 2 , wherein an angle between an outer surface of the case and the side wall of the oil trap portion is designed to range from 90 degrees to 120 degrees.

7 . The compressor of claim 1 ,

wherein a plurality of the oil trap portions are provided, and

wherein the plurality of the oil trap portions are disposed to be spaced apart from each other along a circumferential direction of the case.

8 . The compressor of claim 1 , wherein the oil trap portion extends vertically along a longitudinal direction of the case.

9 . The compressor of claim 1 , wherein the oil trap portion extends to be inclined along a longitudinal direction of the case to have a spiral shape.

10 . The compressor of claim 9 , wherein an extended length of the oil trap portion is limited to an upper surface of the oil stored in the case.

11 . The compressor of claim 1 ,

wherein a plurality of the oil trap portions are provided, and

wherein the plurality of the oil trap portions are disposed to be spaced apart from each other in a longitudinal direction of the case.

12 . The compressor of claim 1 , wherein the oil trap portion extends along a circumferential direction of the case.

13 . The compressor of claim 1 , wherein the compressor comprises a rotary compressor.

14 . The compressor of claim 1 , wherein the oil trap portion includes at least two separate oil trap portions a first oil trap portion disposed in the cavity area of the case in which the compression device and the driving device are not disposed, and a second oil trap portion disposed in second separate cavity area of the case in which the compression device and the driving device are also not disposed.

15 . A home appliance for adjusting a temperature through heat exchange with an outside using a refrigerant, the home appliance comprising:

a compressor for compressing the refrigerant,

wherein the compressor comprises:

a case storing an oil therein,

a compression device disposed inside the case to compress a refrigerant introduced into the case,

a driving device disposed inside the case to drive the compression device, and

an oil trap portion for separating the refrigerant and the oil or collecting the separated oil when the compression device is operated,

the oil trap portion protruding from an outer surface of the case and being recessed from an inner surface of the case to form a space for accommodating the oil, the oil trap portion having a front wall and an unobstructed opening from the space to an inside of the inner surface of the case, the unobstructed opening having an area equal to or greater than an area of the front wall,

wherein the oil trap portion has at least a portion positioned in a cavity area of the case in which the compression device and the driving device are not disposed.

16 . The home appliance of claim 15 ,

wherein the oil trap portion includes a plurality of walls surrounding the space and defining the space, and

wherein the plurality of walls include the front wall, an upper wall, a lower wall, and a side wall.

17 . The home appliance of claim 16 , wherein the front wall of the plurality of walls has a circular or polygonal shape.

18 . The home appliance of claim 16 , wherein the upper wall of the plurality of walls has a horizontal plane for blocking a flow of the oil accommodated in the space to an upper portion of the case.

19 . The home appliance of claim 16 , wherein the lower wall of the plurality of walls has an inclined surface for guiding the oil accommodated in the space to a lower portion of the case.

20 . The home appliance of claim 16 , wherein an angle between an outer surface of the case and the side wall of the oil trap portions is designed to range from 90 degrees to 120 degrees.

21 . The home appliance of claim 15 , wherein the oil trap portion extends to be inclined along a longitudinal direction of the case to have a spiral shape.

22 . The home appliance of claim 15 , wherein the oil trap portion extends along a circumferential direction of the case.