Compressor and air conditioner including the same

Patent metadata

Field	Value
Publication number	US-9556868-B2
Application number	US-201414302600-A
Country	US
Kind code	B2
Filing date	Jun 12, 2014
Priority date	Aug 9, 2013
Publication date	Jan 31, 2017
Grant date	Jan 31, 2017

Abstract

A compressor and an air conditioner including the same having an improved structure capable of decreasing a discharge temperature of the compressor. The compressor which compresses and discharges refrigerant includes a casing defining an external appearance thereof, at least one cylinder including an inner space, a rolling piston which eccentrically turns in the inner space, a vane which radially abuts the rolling piston and divides the inner space into a suction chamber and a compression chamber, and a vane chamber recessed outward of the inner space such that the vane advances and retreats, a plurality of plates disposed above and below the at least one cylinder so as to define the inner space, an injection line provided in one of the at least one cylinder and the plural plates, and a check valve installed on the injection line.

First claim

What is claimed is:

1. A compressor which compresses and discharges refrigerant, comprising:
a casing defining an external appearance thereof;
at least one cylinder comprising an inner space, a rolling piston which eccentrically turns in the inner space, a vane which radially abuts the rolling piston and divides the inner space into a suction chamber and a compression chamber, and a vane chamber recessed outward of the inner space such that the vane advances and retreats, the cylinder being provided within the casing;
a plurality of plates disposed above and below the at least one cylinder so as to define the inner space;
an injection line provided in an area, within an angle of 220 to 340 degrees from a position of the vane of the at least one cylinder in a direction of rotation of the rolling piston, in one of the at least one cylinder and the plural plates, intermediate pressure refrigerant being supplied to the inner space of the at least one cylinder through the injection line; and
a check valve installed on the injection line,
wherein the check valve is closed when the inner space of the at least one cylinder has a pressure higher than a pressure of the injection line to prevent the intermediate pressure refrigerant of the inner space of the at least one cylinder from flowing backward, and
wherein the refrigerant is a mixture of R32 refrigerant and at least one refrigerant of R1234yf, R1234ze and R152A.

2. The compressor according to claim 1 , wherein the check valve is installed by passing through one of the at least one cylinder and the plural plates.

3. The compressor according to claim 1 , wherein the at least one cylinder comprises:
a first cylinder comprising a first supply tube through which refrigerant is supplied to the inner space and a first discharge tube through which compressed refrigerant is discharged into an inner space of the casing; and
a second cylinder located between the first cylinder and a bottom of the casing, and comprising a second supply tube diverging from the first supply tube and a second discharge tube through which compressed refrigerant is discharged into the inner space of the casing, and
wherein the plural plates comprises
a first plate located at an upper side of the first cylinder;
a second plate located between the first and second cylinders; and
a third plate located between the second cylinder and the bottom of the casing.

4. The compressor according to claim 3 , wherein the check valve passes through the first cylinder and is installed in the area within the angle of 220 to 340 degrees from the position of the vane of the first cylinder in the direction of rotation of the rolling piston, and
the intermediate pressure refrigerant supplied from the check valve to the inner space of the first cylinder is compressed by the rolling piston and is discharged into the inner space of the casing through the first discharge tube passing through the first plate.

5. The compressor according to claim 3 , wherein the check valve passes through the second cylinder and is installed in the area within the angle of 220 to 340 degrees from the position of the vane of the second cylinder in the direction of rotation of the rolling piston, and
the intermediate pressure refrigerant supplied from the check valve to the inner space of the second cylinder is compressed by the rolling piston and is discharged into the inner space of the casing through the second discharge tube passing through the third plate.

6. The compressor according to claim 3 , wherein the check valve is installed at a position corresponding to the area within the angle of 220 to 340 degrees from the position of the vane of the first cylinder in the direction of rotation of the rolling piston by passing through the first plate, and
the intermediate pressure refrigerant supplied from the check valve to the inner space of the first cylinder is compressed by the rolling piston and is discharged into the inner space of the casing through the first discharge tube passing through the first plate.

7. The compressor according to claim 3 , wherein the check valve is installed at a position corresponding to the area within the angle of 220 to 340 degrees from the position of the vane of the first or second cylinder in the direction of rotation of the rolling piston by passing through the second plate, and
the intermediate pressure refrigerant supplied from the check valve to the inner space of the first or second cylinder is compressed by the rolling piston and is discharged into the inner space of the casing through the first discharge tube passing through the first plate or the second discharge tube passing through the third plate.

8. The compressor according to claim 3 , wherein the check valve is installed at a position corresponding to the area within the angle of 220 to 340 degrees from the position of the vane of the second cylinder in the direction of rotation of the rolling piston by passing through the third plate, and
the intermediate pressure refrigerant supplied from the check valve to the inner space of the second cylinder is compressed by the rolling piston and is discharged into the inner space of the casing through the second discharge tube passing through the third plate.

9. The compressor according to claim 3 , wherein the check valve installed to the first plate has a shape bent toward the inner space of the first cylinder,
the check valve installed to the second plate has a shape bent toward the first or second cylinder, and
the check valve installed to the third plate has a shape bent toward the second cylinder.

10. The compressor according to claim 3 , wherein the check valve installed to the second plate has a shape bent toward both the first and second cylinders.

11. An air conditioner comprising:
a compressor;
a condenser which condenses high temperature and high pressure refrigerant obtained by the compressor;
an expansion valve which converts the refrigerant discharged from the condenser into low pressure refrigerant; and
an evaporator by which the refrigerant discharged from the expansion valve is evaporated and converted into low temperature and low pressure refrigerant,
wherein the compressor comprises
a casing defining an external appearance thereof;
at least one cylinder comprising an inner space, a rolling piston which eccentrically turns in the inner space, a vane which radially abuts the rolling piston and divides the inner space into a suction chamber and a compression chamber, and a vane chamber recessed outward of the inner space such that the vane advances and retreats, the cylinder being provided within the casing;
a plurality of plates disposed above and below the at least one cylinder so as to define the inner space; and
a check valve provided in one of the at least one cylinder and the plural plates, intermediate pressure refrigerant being supplied to the inner space of the at least one cylinder through the check valve, and
wherein the check valve is provided in a first area within an angle of 220 to 340 degrees from a position of the vane of the at least one cylinder in a direction of rotation of the rolling piston or in a second area of at least one of the plural plates corresponding to the first area.

12. The air conditioner according to claim 11 , further comprising an injection line connecting the condenser and the compressor.

13. The air conditioner according to claim 12 , wherein the check valve is provided on the injection line.

14. The air conditioner according to claim 11 , wherein the refrigerant is a mixture of R32 refrigerant and at least one refrigerant of R1

Assignees

• Samsung Electronics Co Ltd

Inventors

• Nam Ki Hoon
• Park Soo Dol
• Lee Jeong Bae

Classifications

• F04C15/06

  Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet · CPC title

• F25B2600/0253

  with variable speed · CPC title

• F25B31/006

  Cooling of compressor or motor · CPC title

• F25B13/00

  Compression machines, plants or systems, with reversible cycle (defrosting cycles F25B47/02) · CPC title

• F25B2700/21152

  at the discharge side of the compressor · CPC title