CN1727685A

CN1727685A - Silencing apparatus in exhaust uptake of compressor

Info

Publication number: CN1727685A
Application number: CN 200410020110
Authority: CN
Inventors: 张久楠; 丁明; 叶汉洪
Original assignee: LG Electronics Tianjin Appliances Co Ltd
Current assignee: LG Electronics Tianjin Appliances Co Ltd
Priority date: 2004-07-26
Filing date: 2004-07-26
Publication date: 2006-02-01

Abstract

The present invention relates to a noise silencer device in the exhaust channel of air conditioner compressor. The structure of compressor includes the following components: external shell, motor composed of stator and rotor and mounted in the external shell; crankshaft which and rotor are connected into one body; eccentric portion integrally-formed on the lower end portion of crankshaft; compression mechanical portion formed from piston, cylinder, upper bearing and lower bearing; noise silencer connected in the lower portion of lower bearing; exhaust channel composed of noise silencer, lower bearing, cylinder and exhaust hole of upper bearing; silencing device which is set on the upper plane of cylinder in the exhaust channel and communicated with exhaust hole, and the silencing device is composed of groove communicated with exhaust hole and resonator communicated with another end of groove.

Description

Silencer in the compressor air-discharging passage

Technical field

The invention belongs to compressor part, particularly relate to a kind of resonant cavity that in the exhaust passage, is provided with, can reduce the interior silencer of compressor air-discharging passage of noise.

Background technique

Present compressor arrangement comprises shell 1 as shown in Figure 1; The cased motor that constitutes by rotor 2 and stator 3; The bent axle 4 that fuses with rotor; Integral body is formed with eccentric part 12 on the underpart of bent axle, is inserted with the piston 11 that carries out rotation and revolution on its outside; Be to form the compression volume 13 of compression refrigerant gas, design has the compression mechanical portion that is made of cylinder 6 and upper bearing (metal) 5, lower bearing 8; Be connected the silencing apparatus 7 of lower bearing below; The exhaust passage of forming by the exhaust port 9 on silencing apparatus and lower bearing, cylinder, the upper bearing (metal) 10.

The noise that compressor produces, greatly from air pulsing, there is not silencer in the compressor air-discharging passage at present, as shown in Figure 2, in the cylinder design of part schematic representation, cylinder has only an exhaust port, there is not silencer, the gas of compressor is very swimmingly by the exhaust passage, and this moment, the reduction of noise was mainly finished with the silencing apparatus that is connected the lower bearing below by the resonant cavity of cylinder interior, and the effect that reduces noise is obvious inadequately.

Summary of the invention

The present invention provides silencer in a kind of compressor air-discharging passage that a silencer is set for solving the technical problem that exists in the known technology in cylinder vent.

The technological scheme that the present invention takes for the technical problem that exists in the solution known technology is: the silencer in the cooler compressor of the present invention exhaust passage, and the structure of compressor comprises: shell, the cased motor that is made of rotor and stator; The bent axle that fuses with rotor; Integral body is formed with eccentric part on the underpart of bent axle, is inserted with the piston that carries out rotation and revolution on its outside; Be to form compression volume, design has the compression mechanical portion that is made of cylinder and upper bearing (metal), lower bearing; Be connected the silencing apparatus of lower bearing below; The exhaust passage of forming by the exhaust port on silencing apparatus and lower bearing, cylinder, the upper bearing (metal); The plane is provided with a silencer that is communicated with exhaust port on the inside cylinder of exhaust passage; Silencer is made of the resonant cavity that the certain diameter and the degree of depth are arranged that communicates with the groove and the groove the other end of exhaust port connection.

Advantage and good effect that the present invention has are: the silencer in the cooler compressor of the present invention exhaust passage is that the plane is provided with the resonant cavity that is communicated with exhaust port on cylinder.Because the effect of resonant cavity is eliminated the noise to the gas after discharging from cylinder.Therefore, the silencer of this structure has produced noise elimination effect clearly, and noise obviously reduces, and simple in structure, easily realizes.

Description of drawings

Fig. 1 is a prior art compressor arrangement schematic representation;

Fig. 2 is a prior art cylinder design of part schematic representation;

Fig. 3 is a cylinder design of part schematic representation of the present invention;

Fig. 4 is the A-A rotation profile.

Embodiment

For further understanding summary of the invention of the present invention, characteristics and effect, exemplify following examples now, and conjunction with figs. is described in detail as follows:

See also Fig. 1, Fig. 3, Fig. 4, the silencer in the cooler compressor of the present invention exhaust passage, the structure of compressor comprises: shell 1, the cased motor that is made of rotor 2 and stator 3; The bent axle 4 that fuses with rotor; Integral body is formed with eccentric part 12 on the underpart of bent axle, is inserted with the piston 11 that carries out rotation and revolution on its outside; Be to form the compression volume 13 of compression refrigerant gas, design has the compression mechanical portion that is made of cylinder 6 and upper bearing (metal) 5, lower bearing 8; Be connected the silencing apparatus 7 of lower bearing below; The exhaust passage of forming by the exhaust port on silencing apparatus and lower bearing, cylinder, the upper bearing (metal) 10.The plane is provided with a silencer that is communicated with exhaust port 9 on the inside cylinder of exhaust passage; Silencer is made of the resonant cavity that the certain diameter and the degree of depth are arranged 15 that communicates with the groove 14 and the groove the other end of exhaust port connection.

Resonant cavity noise-cancelling theory in the silencer in the cooler compressor of the present invention exhaust passage is: there is own sound film attitude frequency own the exhaust passage, resonant cavity also has the sound film attitude frequency of oneself, when the sound film attitude frequency of exhaust passage and resonant cavity is the same, will produce resonance, thereby the acoustic energy of a certain frequency is cut down, so the gas noise after resonant cavity can reduce to discharge from cylinder reaches the purpose of noise elimination.

Claims

1, the silencer in a kind of cooler compressor exhaust passage, the structure of compressor comprises: shell, the cased motor that is made of rotor and stator; The bent axle that fuses with rotor; Integral body is formed with eccentric part on the underpart of bent axle, is inserted with the piston that carries out rotation and revolution on its outside; Be to form compression volume, design has the compression mechanical portion that is made of cylinder and upper bearing (metal), lower bearing; Be connected the silencing apparatus of lower bearing below; The exhaust passage of forming by the exhaust port on silencing apparatus and lower bearing, cylinder, the upper bearing (metal); It is characterized in that the plane is provided with a silencer that is communicated with exhaust port on the inside cylinder of exhaust passage; Silencer is made of the resonant cavity that the certain diameter and the degree of depth are arranged (15) that communicates with the groove (14) and the groove the other end of exhaust port connection.