Sealed compressor and refrigeration unit including sealed compressor

1. A sealed compressor comprising:

an electric component comprising a rotor and a stator;

a compression component actuated by the electric component; and

a sealed container which accommodates therein the electric component and the compression component, and stores lubricating oil therein;

wherein the compression component includes a crankshaft including a main shaft and an eccentric shaft; a cylinder block including a bearing unit supporting the main shaft of the crankshaft such that the main shaft is rotatable, and a cylinder defining a compression chamber; and a suction muffler through which a refrigerant gas flows from an interior of the sealed container to an interior of the compression chamber;

wherein a space is present between the suction muffler and the stator in a radial direction of the main shaft, and a separating wall is provided in the space between the suction muffler and the stator in such a manner that the separating wall extends in an axial direction of the main shaft;

wherein a first space is formed in a radial direction of the main shaft between the suction muffler and the separating wall and along an entire height of the separating wall; and

wherein a second space is formed in a radial direction of the main shaft between the stator and the separating wall and along an entire height of the separating wall.

2. The sealed compressor according to claim 1 , further comprising:

a suction pipe provided to penetrate a wall of the sealed container and configured to flow therethrough a refrigerant gas suctioned into the sealed container;

wherein the suction muffler is placed such that a suction port of the suction muffler is positioned in the vicinity of an outlet of the suction pipe; and

wherein the separating wall covers a rear end portion of the suction muffler which is located on an upstream side in a flow direction of the refrigerant gas induced in an interior of the sealed container by rotation of the rotor.

3. The sealed compressor according to claim 1 ,

wherein the separating wall covers a front end portion of the suction muffler.

4. The sealed compressor according to claim 1 ,

wherein the separating wall covers at least a portion of a back surface of the suction muffler, from which portion projects a refrigerant passage within the suction muffler.

5. The sealed compressor according to claim 1 ,

wherein the separating wall covers an entire of a back surface of the suction muffler.

6. The sealed compressor according to claim 1 ,

wherein the separating wall is mounted to the suction muffler.

7. The sealed compressor according to claim 1 ,

wherein the stator is fastened to the cylinder block, and the rotor is fastened to the crankshaft; and

wherein the separating wall is mounted to an upper surface of the stator.

8. The sealed compressor according to claim 7 ,

wherein the separating wall extends upward farther than an upper end of the stator.

9. The sealed compressor according to claim 1 ,

wherein the stator has a salient-pole structure in which concentrated windings are wound around salient poles.

10. The sealed compressor according to claim 1 ,

wherein the electric component is driven at one of a plurality of operating frequencies.

11. The sealed compressor according to claim 1 ,

wherein the electric component is placed above the compression component.

12. A refrigeration unit comprising:

the sealed compressor according to claim 1 .