CN1727684A

CN1727684A - Resonator of sealed revolving type compressor in use for air conditione

Info

Publication number: CN1727684A
Application number: CN 200410020108
Authority: CN
Inventors: 叶汉洪; 张久楠; 丁明
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 an acoustic resonance device of sealed rotary compressor for air conditioner. It is composed of several resonators which are designed on the cylinder body wall edge nearby air exhaust opening of compression mechanical portion of compressor and series-connected with air exhaust opening by means of groove. The number of resonators, width and diameter and depth of the groove and resonator are defined according to the frequency range having need of eliminating noise. The invented acoustic resonance device can eliminate the auditory sensation threshold frequency range noise produced by air exhaust opening of compressor, and reduce noise of air conditioner.

Description

The air conditioner acoustic resonator of hermetic rotary compressor

Technical field

The invention belongs to compressor field and relate to the acoustic resonator of a kind of air conditioner with hermetic rotary compressor.Say it is acoustic resonator in further detail about the hermetic rotary compressor of eliminating each frequency range noise that compressor compresses Machinery Ministry floss hole place produces.

Background technique

In the freezing cycle device of air regulator, its refrigerant compresses employed hermetic rotary compressor as shown in Fig. 1, Fig. 2,3, below it is carried out simple explanation.

As shown in the figure, existing hermetic rotary compressor, the inside of its seal container 1 is equipped with the motor 4 that is made of rotor 2 and stator 3, and running shaft 5 is fixed among the axis hole 2a that the central vertical direction that is inserted in above-mentioned rotor 2 forms.

And integral body is formed with eccentric part 6 on the underpart of running shaft 5, is inserted with the rolling piston 7 that carries out rotation and revolution on the outside of its eccentric part 6.For forming the compression volume 8 of compression refrigerant gas, design has the compression mechanical portion 12 that is made of cylinder body 9 and upper and lower part bearing 10,11.

On outlet one side of the discharge orifice 10a that forms on the upper bearing 10, can adverse current for compressed cold media air is discharged out not, valve assembly body 15 is installed, the top of its valve assembly body 15 is equipped with the baffler 16 of subduing noise.

And on the suction port 9a of cylinder body 9 side, connection is equipped with gas-accumulating tank 17, and snorkel 18 also utilizes connection mouth 19 to carry out connection.Be equipped with on above-mentioned seal container 1 top compressed high pressure refrigerant gas in compression mechanical portion 12 is discharged into outside discharge pipe 20.

As shown in Figure 2, on above-mentioned cylinder body 9 inner peripheral surfaces, be formed with the floss hole 8a that is communicated with the discharge orifice 10a on the upper bearing 10, and, between the floss hole 8a and suction port 9a in above-mentioned cylinder body 9 inboard compression spaces 8, have and utilize spring 21 flexibly closely to be connected washer 22 on rolling piston 7 outer circumferential faces, its inboard is divided into the high-voltage section of the low voltage section that sucks refrigerant and discharging refrigerant.

The symbol 16a that does not describe among the figure is the hole of passing through that forms on baffler 16.

For the hermetic rotary compressor that as above constitutes, if connect power supply to it, just the rotor 2 of motor 4 is rotated, the running shaft 5 that is inserted in the rotor 2 also is rotated.

Utilize the rotation of running shaft 5, the rolling piston 7 that is connected on the eccentric part 6 that forms in running shaft 5 underparts and the eccentric part 6 is rotated, and,, be the compressing refrigerant gas that is drawn into inner low-temp low-pressure the cold media air of High Temperature High Pressure by the suction port 9a of cylinder body 9.

Compressed cold media air is discharged out by valve assembly body 15, and by baffler 16 pass through hole 16a, be discharged into the inside of seal container, pass through the slit between rotor 2 and the stator 3 again, be discharged into the outside by discharge pipe 20.

But the noise of multiple frequency can take place in compressed cold media air when floss hole 8a discharges in existing hermetic rotary compressor, remove the noise way at present the noise that the baffler 16 of subduing noise can't be eliminated each frequency range promptly is installed on valve assembly body 15 tops, first resonant cavity 23 that for this reason on the cylinder body 9 walls edge on compression mechanical portion floss hole 8a next door, is communicated with a certain diameter and the degree of depth again with groove 24, utilizing suddenly, nurse-hertz principle had still both made the problem that so still has other frequency range noise residual with the noise absorption of certain frequency range.

Summary of the invention

The present invention is for the problem that solves above-mentioned existence proposes, and its purpose is to provide a kind of acoustic resonator of eliminating the air conditioner of each frequency range noise with hermetic rotary compressor.

The technological scheme that addresses the above problem is a plurality of resonant cavitys that are communicated with that are connected in series with it with groove of design on the next door cylinder body 9 walls edge of the compression mechanical portion floss hole 8a of above-mentioned compressor, nurse-hertz principle is with the noise absorption of a plurality of frequency ranges suddenly to utilize, and the width of groove and resonant cavity, footpath degree, the degree of depth, shape are set according to the frequency range that will abate the noise.

Advantage and good effect: air conditioner of the present invention with the acoustic resonator of hermetic rotary compressor the cylinder wall on the compression mechanical portion floss hole 8a next door of its compressor along on design more than one the resonant cavity with groove and its polyphone a plurality of frequency range noises can be eliminated, thereby reach the purpose that reduces air conditioner noise raising product reliability.

Description of drawings

Fig. 1 is the construction profile of existing hermetic rotary compressor.

Fig. 2 is air conditioner schematic representation with the resonant cavity of groove series connection with it of the other cylinder body of compression mechanical portion floss hole edge design with hermetic rotary compressor.

Fig. 3 is the sectional drawing of A-A among Fig. 2.

Fig. 4 is the schematic representation of air conditioner of the present invention with two series connection with it resonant cavitys of design on the other cylinder body of the compression mechanical portion floss hole edge of the acoustic resonator of hermetic rotary compressor.

Fig. 5 is the rotation profile of B-B among Fig. 4.

Among each figure:

1: seal container, 2: rotor,

2a: axis hole, 3: stator,

4: motor, 5: running shaft,

6: eccentric part, 7: rolling piston,

8: compression volume, 8a: floss hole,

9: cylinder body, 9a: suction port,

10: upper bearing, 10a: discharge orifice,

11: lower bearing, 12: compression mechanical portion,

15: valve assembly body, 16: baffler,

16a: by hole, 17: gas-accumulating tank,

18: snorkel, 19: connection mouth,

20: discharge pipe, 21: spring,

22: washer, 23: the first resonant cavitys

24: 25: the second resonant cavitys of groove

Specific embodiment

Below, be that example describe with the air conditioner that designs two series connection resonant cavitys with the acoustic resonator of hermetic rotary compressor with reference to accompanying drawing 4,5.(same parts do not have the same label of using of variation in the literary composition)

Air conditioner of the present invention is equipped with the motor 4 that is made of rotor 2 and stator 3 with the acoustic resonator of hermetic rotary compressor, the inside of its seal container 1, and running shaft 5 is fixed among the axis hole 2a that the central vertical direction that is inserted in above-mentioned rotor 2 forms.

On outlet one side of the discharge orifice 10a that forms on the upper bearing 10, can adverse current for compressed cold media air is discharged out not, valve assembly body 15 is installed.The top of its valve assembly body 15 is equipped with the baffler 16 of subduing noise.

On above-mentioned cylinder body 9 inner peripheral surfaces, be formed with the discharging 8a that is communicated with the discharge orifice 10a above the upper bearing 10, floss hole 8a next door cylinder body 9 walls have circular first resonant cavity 23 and second resonant cavity 25 to be connected in series connection with square trench 24 with floss hole 8a along last design, and, between the floss hole 8a and suction port 9a in above-mentioned cylinder body 9 inboard compression spaces 8, have and utilize spring 21 flexibly closely to be connected washer 22 on rolling piston 7 outer circumferential faces, its inboard is divided into the high-voltage section of the low voltage section that sucks refrigerant and discharging refrigerant.

For the acoustic resonator of the air conditioner that as above constitutes with hermetic rotary compressor, if connect power supply to it, just the rotor 2 of motor 4 is rotated, the running shaft 5 that is inserted in its rotor 2 also is rotated.

Utilize the rotation of running shaft 5, make in running shaft 5 underparts and form eccentric part 6, be rotated with the rolling piston 7 that is connected on the eccentric part 6, and, by the suction port 9a of cylinder body 9, be the compressing refrigerant gas that is drawn into inner low-temp low-pressure the cold media air of High Temperature High Pressure.

Compressed cold media air is discharged out by floss hole 8a and the valve assembly body 15 with groove 24 series connection first resonant cavitys 23 and second resonant cavity 25, and pass through hole 16a by baffler 16, be discharged into the inside of seal container, pass through the slit between rotor 2 and the stator 3 again, be discharged into the outside by discharge pipe 20, experimental results show that the series connection resonant cavity can eliminate 2000-5000HZ frequency range noise, two resonant cavitys of connecting can be eliminated 2000-8000HZ frequency range noise.

Claims

An air conditioner with the acoustic resonator of hermetic rotary compressor be in seal container, be equipped with compression mechanical portion floss hole next door cylinder wall in the rotary compressor that motor and compression mechanical portion constitute along on design and the floss hole resonant cavity formation of connecting with groove, it is characterized in that: in order to eliminate the noise of Multiband, the resonant cavity that is connected in series connection with floss hole with groove is a plurality of according to the frequency range series design that abates the noise.
2. air conditioner according to claim 1 is characterized in that with the acoustic resonator of hermetic rotary compressor: be connected in series the number of resonant cavity of UNICOM with groove with the compression mechanical portion floss hole and width, footpath degree, the degree of depth, the shape of groove and resonant cavity set according to the frequency range that will abate the noise, 2000 to 5000HZ frequency range noises can be eliminated during with circular resonant cavity of square trench series connection among the present invention, 2000 to 8000HZ frequency range noises can be eliminated when connecting two circular resonant cavitys.