Compressor and heat cycle system for refrigerator
A compressor includes a sealed container, a compression part provided in an upper part of the inside of the sealed container and configured to compress a working medium, an oil reservoir part provided in a bottom part of the inside of the sealed container and configured to reserve a lubricating oil therein, an electric drive part provided between the compression part and the oil reservoir part inside the sealed container and configured to drive the compression part, and a power source terminal provided to pass through a wall surface of the sealed container in a region of the oil reservoir part. The power source terminal is connectable to an external power source outside the sealed container and electrically connected to the electric drive part via a lead wire in the sealed container.
1. A compressor comprising:
a sealed container;
a compression part provided in an upper part of the inside of the sealed container and configured to compress a working medium;
an oil reservoir part provided in a bottom part of the inside of the sealed container and configured to reserve a lubricating oil therein;
an electric drive part provided between the compression part and the oil reservoir part inside the sealed container and configured to drive the compression part; and
a power source terminal provided to pass through a wall surface of the sealed container in a region of the oil reservoir part, the power source terminal being connectable to an external power source outside the sealed container and electrically connected to the electric drive part via a lead wire in the sealed container,
wherein the power source terminal comprises an exposed metallic-terminal portion inside the sealed container, and the exposed metallic-terminal portion is entirely immersed in the lubrication oil.
2. The compressor according to claim 1 , wherein the lead wire is connected to the power source terminal by a connector, and the connector and at least a part of the lead wire are immersed in the lubricating oil.
3. A heat cycle system comprising:
the compressor according to claim 2 ; and
a refrigerant circuit to which the compressor is connected and through which the working medium circulates.
4. The compressor according to claim 1 , wherein the power source terminal is provided to a sidewall portion of the wall of the sealed container in the region of the oil reservoir part.
5. A heat cycle system comprising:
the compressor according to claim 4 ; and
a refrigerant circuit to which the compressor is connected and through which the working medium circulates.
6. The compressor according to claim 1 , wherein the working medium comprises a hydrofluoroolefin (HFO).
7. The compressor according to claim 6 , wherein the HFO comprises HFO-1123.
8. The compressor according to claim 7 , wherein the working medium is a working medium consisting of HFO-1123, a working medium comprising a mixture of HFO-1123 and HFC-32, or a working medium comprising a mixture of HFO-1123 and HFO-1234yf.
9. A heat cycle system comprising:
the compressor according to claim 1 ; and
a refrigerant circuit to which the compressor is connected and through which the working medium circulates.
10. The compressor according to claim 1 , further comprising a sub-frame partitioning a space inside the sealed container and positioned between the electric drive part and the oil reservoir part.
11. The compressor according to claim 10 , wherein a through hole passing the lead wire is formed in the sub-frame.
12. The compressor according to claim 11 , wherein the lead wire is connected to the power source terminal by a connector, and the connector and at least a part of the lead wire are immersed in the lubricating oil.
13. The compressor according to claim 11 , wherein the power source terminal is provided to a sidewall portion of the wall of the sealed container in the region of the oil reservoir part.
14. The compressor according to claim 11 , wherein the working medium comprises a hydrofluoroolefin (HFO).
15. The compressor according to claim 14 , wherein the HFO comprises HFO-1123.
16. The compressor according to claim 15 , wherein the working medium is a working medium consisting of HFO-1123, a working medium comprising a mixture of HFO-1123 and HFC-32, or a working medium comprising a mixture of HFO-1123and HFO-1234yf.
17. A heat cycle system comprising:
the compressor according to claim 10 ; and
a refrigerant circuit to which the compressor is connected and through which the working medium circulates.
18. A heat cycle system comprising:
the compressor according to claim 11 ; and
a refrigerant circuit to which the compressor is connected and through which the working medium circulates.