KR200157074Y1 - Compressor with a dust-removing trap - Google Patents

Abstract

The present invention relates to a compressor having a foreign material removal trap employing a trap structure therein in a hermetic compressor having a means used for a refrigerator and having a means for sucking and discharging refrigerant inside the sealed case.

The compressor having the foreign substance removal trap is a hermetic compressor (12) in a hermetic compressor (12) in which a refrigeration oil under the sealed case (11) is supplied to a high-pressure generator such as a piston (14) through an eccentric shaft (12). Magnet 27 having a through hole 27a at the center thereof, and a spacer 28 having a through hole 28a at the center of the magnet 27, And it is configured to include a fixing bolt 29 for fixing the magnet 27 and the spacer 28 while being fastened to the tapping portion (11a) of the sealed case 11 through the through holes (27a, 28a).

Accordingly, the present invention has the effect of preventing the debris from being circulated to the high-pressure generator side to prevent the compressor efficiency decrease and decrease the life.

Description

Compressor with debris trap

1 is an exemplary view showing the internal structure of a hermetic compressor.

FIG. 2 (a) is an exploded perspective view showing a trap according to the present invention, and FIG. 2 (b) is a sectional view of the assembled state of FIG.

3 is a cross-sectional view showing a modified embodiment of FIG.

* Explanation of symbols for main parts of the drawings

10 compressor 11 sealed case

11a: tapping part 12: eccentric shaft

13: cylinder 14: piston

15 valve 16 motor

17: support plate 17a: upper opening

17b: side opening 27,37: magnet

27a, 28a: through hole 28: spacer

29: fixing bolt 39: trap bolt

The present invention relates to a compressor, and more particularly to a foreign material removal trap employing a trap structure in a hermetic compressor that is used in a refrigerator and has a means for sucking and discharging a refrigerant inside the sealed case. To a compressor having

In a refrigerator, a compressor is usually a means for converting rotational force by electrical energy into mechanical energy of reciprocating motion, and a refrigerant having a low boiling point is brought into a high temperature and high pressure state through the compressor. Again the high pressure refrigerant is cooled in the condenser and becomes liquid, and once this liquid refrigerant is gasified in the cooler, one refrigeration cycle is completed.

1 is an exemplary view showing the internal structure of the hermetic compressor.

The compressor 10 has a structure in which a suction pipe (not shown) and a discharge pipe (not shown) of the refrigerant are bonded to the outside of the sealed case 11 and a high pressure generator is mounted therein. The high pressure generating part can be roughly divided into a fixed part composed of a cylinder 13, a valve 15, and the like, and a moving part composed of a piston 14, a connecting rod 18, a big end, and the like.

In the operation of the high-pressure generator, the eccentric shaft 12 rotated by the motor induces the cam motion of the big end joined to the tip of the piston 14 through the eccentric cam part of the upper part, and the cam motion again connects the connecting rod. The piston 14 in the cylinder 13 is reciprocated through, and the valve 15 is passively opened and closed by the pressure difference between both sides formed at this time to move the refrigerant in one direction.

For reference, the refrigerant coming into the suction pipe in the hermetic compressor having the high pressure generating part is filled into the sealed case 11 and then introduced into the cylinder 13 through the suction muffler, and the refrigerant compressed in the cylinder 13 is discharged. Passes through the muffler and is sent to the condenser (not shown) through the discharge pipe.

The high-pressure generating portion is lubricated (lubricating oil) filled in the lower portion of the sealed case 11 to lubricate and obtain a lubricating and cooling effect. The piston 14 is reached along the oiling groove formed in the shape.

At this time, the refrigeration oil may include a foreign matter in the solid state generated during the processing or normal operation of the various parts, in particular, when a metallic foreign material is supplied to the piston 14 together with the refrigeration oil, causing abnormal wear of the high-pressure generating part There is a problem of lowering the efficiency of the compressor.

Accordingly, the present invention is to solve the above problems, by applying a predetermined trap structure to the hermetic compressor having a means for sucking and discharging the refrigerant in the sealed case to prevent the metallic foreign matters from being circulated to the high-pressure generating side. It is an object to provide a compressor with a debris trap.

In order to achieve the above object, the present invention is a hermetic compressor of a refrigerator for supplying refrigeration oil at the bottom of a sealed case through an eccentric shaft to a high pressure generating unit such as a piston: Magnets with; Spacer having a through-hole in the center and located in the downward direction of the magnet; And it provides a compressor having a foreign material removal trap, characterized in that it comprises a fixing bolt for fixing the magnet and the spacer while being fastened to the sealed case, the tapping portion through the through-hole.

In addition, in the modified embodiment, instead of fixing the magnet and the spacer with a fixing bolt inside the sealed case, the trap bolt having a magnet at the tip and through the tapping portion of the sealed case to maintain the airtight from the outside And fit.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 2 (a) is an exploded perspective view showing a trap according to the present invention, and FIG. 2 (b) is a sectional view of the assembled state of FIG.

The foreign material removal trap of the present invention is installed at the lower part of the sealed case 11 (see FIG. 1) where frozen oil is accumulated, but it is effective to install it at the point where the eccentric shaft 12 (FIG. 1) raises the frozen oil. Therefore, the inside of the support plate 17 is selected. The support plate 17 is a funnel shape and serves to support the lower end of the eccentric shaft 12.

The foreign material removal trap is composed of a magnet 27, a spacer 28, and the like, which are fastened to the fixing bolt 29 in the downward direction of the eccentric shaft 12. The magnet 27 and the spacer 28 are fixed to the tapping portion 11a of the sealed case 11 through through holes 27a and 28a formed at the center thereof, respectively. The through holes 27a and 28a are not tapped.

When the magnet 27 having a predetermined Gaussian value is directly attached to the sealed case 11, the length of the fixing bolt 29 is shortened, resulting in poor workability, and thus the spacer 28 prevents this. If the tapping portion 11a cannot be formed to a sufficient length, the spacer 28 may be bonded to the sealed case 11 and may be tapped.

3 is a cross-sectional view showing a modification example of FIG.

The foreign matter removal trap which fixes the magnet 27 and the spacer 28 with the fixing bolt 29 in the sealed case 11 is difficult to remove the foreign matter attached to the magnet 27 while using the refrigerator. In the future, some of the foreign matter may escape and circulate.

On the other hand, in the present embodiment, the trap bolt 39 formed to penetrate the tapping part 11a of the sealed case 11 is installed while maintaining airtightness from the outside. The trap bolt 39 using a relatively large diameter welds or bolts the magnet 37 having a predetermined Gaussian to its tip.

When the foreign matter removal trap is applied, foreign matters attached to the magnet 27 are easily removed from the outside while the refrigerator is in use, so that problems due to the circulation of the foreign matters are less likely to occur.

As described above, the compressor having the foreign substance removal trap according to the present invention applies a predetermined trap structure to the hermetic compressor having a means for sucking and discharging the refrigerant in the sealed case, thereby preventing the foreign matter inside from being circulated to the high pressure generating part. It has the effect of preventing efficiency degradation and reduced life.

Although the present invention has been shown and described in connection with certain preferred embodiments, the present invention may be variously modified and changed without departing from the spirit or the field of the present invention provided by the following claims for utility model registration. It will be readily apparent to one of ordinary skill in the art that it can be used.

Claims (2)

In a hermetic compressor of a refrigerator for supplying refrigeration oil under the sealed case (11) through a eccentric shaft (12) to a high pressure generating unit such as a piston (14): In addition to being located downward of the eccentric shaft (12). A magnet 27 having a through hole 27a in the center thereof; A spacer 28 positioned downward of the magnet 27 and having a through hole 28a in the center thereof; And a fixing bolt 29 which is fastened to the tapping part 11a of the sealed case 11 through the through holes 27a and 28a to fix the magnet 27 and the spacer 28. Compressor with debris removal trap. According to claim 1, Instead of fixing the magnet 27 and the spacer 28 with a fixing bolt 29 in the interior of the sealed case 11, penetrating through the tapping portion (11a) of the sealed case (11). Compressor having a foreign material removal trap, characterized in that the trap bolts (39) having a magnet (37) at the front end and to maintain the airtight from the outside.