KR0139594B1 - Discharge silencer device of hermetic compressor - Google Patents

Abstract

The present invention relates to a discharge silencer device of a hermetic compressor, in particular, to reduce the noise by reducing the pressure pulsation of the refrigerant and to increase the discharge silencer to smooth the flow of the refrigerant to improve the efficiency of the silencer, In order to reduce the pressure pulsation of the refrigerant discharged from the cylinder by forming a two cylindrical silencer and a steel plate silencer in the second head cover.

Description

Discharge silencer device of hermetic compressor

1 is a longitudinal sectional view of a hermetic compressor.

2 is a cross-sectional view of the hermetic compressor,

3 is a block diagram of a conventional silencer.

4 is a discharge silencer of the present invention,

(a) is a perspective view of a structure.

(b) is a cross-sectional view.

* Explanation of symbols for the main parts of the drawings *

114: first head cover 115: second head cover

117: first cavity discharge silencer 118: resonance discharge silencer

119: second joint discharge silencer 120: third joint discharge silencer

121: passage section

The present invention relates to a discharge silencer device of a hermetic compressor, in particular to place a plurality of cavities in the discharge silencer to reduce noise and improve performance.

Conventional compressors have a compression unit mounted on the upper side of the frame 4 in the chamber 3 forming the outer case as shown in FIGS. 1 to 3, and a transmission unit 5 installed below the frame 4. ), A crank side 8 inserted into the center of the transmission part 5, a piston 7 connected to an upper portion of the crankshaft 8 to reciprocate in the cylinder 6, and the cylinder 6 In the suction silencer 10 for introducing refrigerant passing through the suction pipe 1, the discharge silencer 11 connected to the head cover 12 attached to the front end of the cylinder 6, and the discharge silencer 11 And a loop pipe 13 for guiding the discharged refrigerant to the discharge pipe 2.

In the drawings, reference numeral 12 denotes a second head cover, 14 denotes a first head cupber, and 15 denotes a cavity discharge volume.

When power is applied to the hermetic compressor in this state, the crankshaft 8 is rotated by the transmission part 5 and the crankshaft 8 reciprocates the piston 7 to the suction pipe 1 using the compression force. From the refrigerant is sucked.

At this time, the refrigerant gas introduced into the chamber (3) enters the discharge silencer (11) through the cavity discharge volume (15) through the suction silencer (10) and the cylinder (6), and then is discharged to the outside through the loop pipe (13). When the refrigerant gas enters the discharge silencer 11 at a high pressure through the cavity discharge volume 15 inside the cylinder 6, the pressure pulsation is reduced by the discharge silencer 11, thereby reducing the noise.

However, when the conventional suction silencer 10 is made of plastic and directly mounted on the head cover 12 to improve performance, the volume in the cavity discharge volume 15 is reduced to increase the noise, and the pressure pulsation is irregular. There were problems such as reducing performance.

In view of the above, the present invention is provided with a plurality of discharge silencers in the second head cover to increase the volume of the cavity discharge volume, thereby reducing the noise of the discharge refrigerant and smoothing the flow of the refrigerant to improve the compressor rate. Its purpose is to.

The invention is illustrated by FIG. 4.

In the silencer structure of the hermetic compressor, the first and second cavity discharge silencers 117 and 119 in the second head cover 115 to increase the volume of the cavity discharge volume to reduce the pressure pulsation of the refrigerant discharged from the cylinder. Was constructed.

In addition, the resonance discharge silencer 118 is formed in a resonance shape and is installed on the first head cover 114, and the second head cover to connect the first cavity discharge silencer 117 and the second cavity discharge silencer 119 ( A passage portion 121 is formed at 115, and a third cavity discharge silencer 120 is installed at the first head cover 114 as in the prior art.

When the refrigerant gas in the cylinder is discharged to the first cavity discharge silencer 117 in the state configured as described above, the refrigerant gas passes through the passage portion 121 of the second head cover 115, which is manufactured by mold improvement, and the resonance discharge silencer 118. Resonance form can reduce the noise of the refrigerant discharged to the first cavity discharge silencer 117.

And the odor gas flowing into the third cavity discharge silencer 120 from the second cavity discharge silencer 119 through the first head cover 114 is discharged to the discharge pipe 2 through the loop pipe 13 as in the related art. Will be.

As described above, the present invention reduces the noise by reducing the pressure pulsation of the refrigerant and increases the volume of the discharge silencer to smooth the flow of the refrigerant, thereby improving the efficiency of the silencer.

Claims (1)

A suction silencer for sucking the refrigerant into the cylinder, a first cavity discharge silencer for reaching the refrigerant discharged to the cylinder, a passage formed to allow the refrigerant to move in the first cavity discharge silencer, and a refrigerant reaching through the passage. 2 a cavity discharge silencer, a third cavity discharge silencer for moving refrigerant from the second cavity discharge silencer, a loop pipe for guiding refrigerant from the third cavity discharge silencer to the outside of the compressor, and a first cavity discharge silencer. Discharge silencer device of the hermetic compressor consisting of a resonance discharge silencer formed in communication with each other to reduce the noise of the discharge refrigerant.