CN1320281C - Silencer of exhaust valve for sealed rotary compressor - Google Patents
Silencer of exhaust valve for sealed rotary compressor Download PDFInfo
- Publication number
- CN1320281C CN1320281C CNB011441755A CN01144175A CN1320281C CN 1320281 C CN1320281 C CN 1320281C CN B011441755 A CNB011441755 A CN B011441755A CN 01144175 A CN01144175 A CN 01144175A CN 1320281 C CN1320281 C CN 1320281C
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- CN
- China
- Prior art keywords
- rotary compressor
- drain tap
- silencer
- exhaust valve
- upper bearing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Abstract
The present invention discloses a silencing device of an exhaust valve for a sealed rotary compressor, which comprises an upper bearing, a lower bearing and a compressing mechanism part, wherein the upper bearing and the lower bearing are arranged at the lower part of a sealed container, and the compressing mechanism part is composed of a cylinder, a rolling piston and an eccentric wheel; vent holes are arranged in the upper bearing, valve plates for an exhaust valve are arranged on the vent holes, and a silencer is arranged above the vent holes. The present invention belongs to a silencing device with a silencing groove arranged at the elastic bottom of a stopper at the exhaust valve. The sealed rotary compressor can solve the problem of friction noise generated when the exhaust valve is opened and closed up and down in the working process of the compressor.
Description
Technical field
The invention belongs to the hermetic rotary compressor class, relate in particular to the silencer of the drain tap of hermetic rotary compressor.
Background technique
At present, hermetic rotary compressor in the past (referring to Fig. 1, Fig. 2, shown in Figure 3) by being drawn into seal container (1) lining to refrigerant vapor, compresses compressor section and the motor portion formation that can drive above-mentioned compressor with exhaust again.
Above-mentioned motor portion is by just producing the stator (2) of magnetic force and be subjected to this magnetic force and rotor rotated by power supply, and rotating shaft (4) constitutes.
Above-mentioned compressor is arranged in the bottom of motor, and by cylinder (5), upper bearing (6), and lower bearing (7), rolling piston (8), eccentric wheel constitute.Wherein be shaped on the inlet hole (5a) and the outstanding port (5b) that absorb compression and exhaust in the cylinder (6).Upper bearing (6) and lower bearing (7) respectively are installed on the upper and lower part of bearing, pack into and support it in rotating shaft (4).Rolling piston (8) rotates in the cylinder internal space with the rotation of rotor; Eccentric wheel is enclosed in a side of cylinder, is direction when carrying out straight reciprocating motion with the radius, and its end contacts with the outer circumferential face of above-mentioned rolling piston (8); And can be separated into suction chamber and compression chamber to the formed space of outer circumferential face of the inner space inner peripheral surface of cylinder (5) and rolling piston (8).
In addition, a side of said cylinder (5) has the outstanding port (5b) of discharging the refrigerant vapour that compressed.One side of above-mentioned top cylinder has and gives prominence to the exhaust port (6a) that port (5b) is communicated with; The outlet pipe (14) that the upside handlebar High Temperature High Pressure refrigerant vapor of above-mentioned seal container is discharged outward.
When the top of above-mentioned top cylinder (6) is provided with the High Temperature High Pressure refrigerant vapor and reaches certain pressure, just can open the drain tap (10) of exhaust port, and the valve block (11) of restriction drain tap switch height and support drain tap, valve block (11) is positioned at the upside of drain tap (10).
Above-mentioned drain tap (10) and valve block (11) are connected to attachment hole by screw (15), and (10a, 11a) and the thin plate part (6c) of upper bearing, attachment hole (100,110) is located at an end of drain tap and pad respectively.
The silencer (13) that weakens the refrigerant vapour exhaust sound is arranged above the above-mentioned upper bearing (6), and by the outlet pipe (14) of silencer discharge in compressor seal container outside.
The rotation of the above rotary compressor in the past that constitutes is achieved in that at motor connecting power can produce magnetic force between stator (2) and rotor (3), the magnetic force rotor can rotate thus, along with the rotating shaft (4) of rotor also can rotate.
The driving force of above-mentioned motor passes to rotating shaft (4), the rolling piston (8) that is connected rotating shaft (4) eccentric part also can with the eccentric wheel state of contact under carry out the off-centre rotation in the pressing chamber at cylinder.
Above-mentioned rolling piston (8) carries out the off-centre rotation, can cause the Volume Changes of pressing chamber (P), and the refrigerant vapour of this high-temperature low-pressure is drawn in the pressing chamber by inlet hole (5a), becomes the state of High Temperature High Pressure.
The refrigerant vapor of above-mentioned High Temperature High Pressure has arrived certain pressure can push the drain tap (10) that was blocking up exhaust port (6a) originally open.By inlet hole (5a) and exhaust port (6a), be discharged to the space between upper bearing (6) and the silencer (13), pass through outlet pipe (14) at last and be discharged to the outside.
When the inner pressing chamber (P) of said cylinder (5) is compressed into the refrigerant vapour discharge of high-temperature high-pressure state, can up push away drain tap (10), at this moment drain tap can bump with valve block (11) and produce the metal friction sound.
At this moment the Crunch of Chan Shenging is the noise source of hermetic rotary compressor, its rotation fast more, and this noise can be big more.This is the major issue that needs solution.
Summary of the invention
The silencer of exhaust valve that the purpose of this invention is to provide a kind of hermetic rotary compressor is to solve in the hermetic rotary compressor work Crunch that drain tap upper and lower motion when opening and close is produced.
The object of the present invention is achieved like this, it contain that the seal container bottom is provided with by upper and lower part bearing, cylinder, the compression mechanical part that rolling piston and eccentric wheel constitute, be equipped with exhaust port on the upper bearing, drain tap is set above the exhaust port, the top of exhaust port is provided with baffler.The present invention is that the stopper place on drain tap is provided with the noise reduction groove.
The present invention also can be provided with the noise reduction groove of length direction in the elastic bottom of drain tap stopper.
Because the present invention has adopted above technological scheme, at the stopper place of the drain tap of hermetic rotary compressor the silencer of one noise reduction groove is set, thereby can absorbs the Crunch that produces when moving owing to drain tap is upper and lower.
Description of drawings
Fig. 1 is the vertical sectional view that breaks of hermetic rotary compressor in the past;
Fig. 2 be hermetic rotary compressor in the past drain tap conclude the state sectional view;
Fig. 3 is the profile and the front elevation of the pad of hermetic rotary compressor in the past;
Fig. 4 is the longitudinal plane sectional view of hermetic rotary compressor of the present invention;
Fig. 5 is in the hermetic rotary compressor of the present invention, is installed in the front elevation of the silencer upper bearing of drain tap;
Fig. 6 is in the hermetic rotary compressor of the present invention, the vertical disconnected sectional view of the silencer of drain tap;
Fig. 7 is the drain tap of hermetic rotary compressor of the present invention;
Fig. 8 is in the hermetic rotary compressor of the present invention, the profile of the stopper of silencer and front elevation on the drain tap.
In Fig. 1, Fig. 2, Fig. 3:
1: seal container 2: stator 3: rotor 4: rotating shaft 5: cylinder 5a: inlet hole 5b: outstanding port 6: upper bearing 6a: exhaust port 6c: thin plate part 7: lower bearing 8: rolling piston 9: suction pipe 10: drain tap 10a: attachment hole 11: valve block 11a: attachment hole 13: baffler 14: outlet pipe 15: screw 100:, 110: attachment hole P: pressing chamber
At Fig. 4, Fig. 5, Fig. 6, Fig. 7, among Fig. 8: 1: seal container 2: stator 3: rotor 4: rotating shaft 5: cylinder 5a: inlet hole 5b: outstanding port 6: upper bearing 6a: exhaust port 6c: thin plate part 7: lower bearing 8: rolling piston 9: suction pipe 10: drain tap 10a: attachment hole 11: pad 11a: attachment hole 13: silencer 14: outlet pipe 15: screw 100: attachment hole 110: drain tap 111: switching portion 112: restriction joint 113, valve joint 114: attachment hole 120: stopper 121: elastic support portion 122: pad joint 123: pad attachment hole 124: noise reduction groove P: pressing chamber.
Mode of execution
Below in conjunction with accompanying drawing following explanation is done in enforcement of the present invention:
The explanation of Fig. 1, Fig. 2, Fig. 3 is described in detail in " background technique ", in this omission.
In Fig. 4, Fig. 5, Fig. 6, (will sketching or omit to the identical parts of the hermetic rotary compressor of Fig. 3, symbol) with above Fig. 1.
Hermetic rotary compressor of the present invention compresses compressor section and the motor portion formation that can drive above-mentioned compressor with exhaust again by being drawn into seal container (1) lining to refrigerant vapor.
Above-mentioned motor portion is by just producing the stator (2) of magnetic force and be subjected to this magnetic force and rotor rotated (3) by power supply, and rotating shaft (4) constitutes.
Above-mentioned compressor partly be positioned at motor portion below.By cylinder (5), upper bearing (6) and lower bearing (7), rolling piston (8), eccentric wheel constitutes.Wherein cylinder (5) is provided with the inlet hole (5a) and the outstanding port (5b) of suction, compression and exhaust, and upper bearing (6) and lower bearing (7) respectively are installed on the upper and lower part of bearing, packs in rotating shaft (4) and supporting revolving shaft (4).Rolling piston (8) rotates thereupon, rotates in the cylinder internal space.
In addition, one side of said cylinder (5) has the outstanding port (5b) of the exhaust of discharging the refrigerant vapour that compressed, side in the cylinder of above-mentioned top has and gives prominence to the exhaust port (6a) that port (5b) is communicated with, the outlet pipe (14) that the upside handlebar High Temperature High Pressure refrigerant vapor of above-mentioned seal container (1) is discharged outward.
In Fig. 4, above the upper bearing (6), an end of drain tap (110) and stop utensil (120) connects thin plate part (6c) respectively.
Above-mentioned drain tap (110) is by the switching portion (111) that opens and close exhaust port (6a) and the valve joint (113) of valve attachment hole (114) is arranged, and restriction joint (112) constitutes.
In Fig. 8, above-mentioned stopper (120) is the pad joint (122) that pad attachment hole (123) is arranged by being fixed on drain tap (110) upper end, with the switching portion (111) of the drain tap that moves up and down along with the pressure of refrigerant vapour (110), and the elastic support portion (121) of restriction joint (112) degree of opening constitutes.
Be provided with noise reduction groove (124) in above-mentioned elastic support portion (121) lining, and this noise reduction groove (124) is in the bottom surface of drain tap (110).
The baffler (13) that reduces refrigerant vapour sound is arranged above the above-mentioned upper bearing (6), and discharge the outlet pipe (14) of depositing external container at compressor seal through the noise reduction groove.
The above rotation that constitutes hermetic rotary compressor of the present invention is to realize like this; In the motor connecting power meeting, the back produces magnetic force between stator (2) and rotor (13).Thus, magnetic force rotor (3) can rotate, and also can rotate with the rotating shaft (4) of rotor rotation.
The driving force of above-mentioned motor is communicated to rotating shaft (4), the rolling piston (8) that is connected the eccentric position of rotating shaft also can with the eccentric wheel contact condition under be rotated in the pressing chamber at cylinder.Rolling piston (8) carries out the off-centre rotation, can cause the Volume Changes of pressing chamber (P), and at this moment the refrigerant vapour of high-temperature low-pressure is drawn in cylinder (5) pressing chamber by inlet hole (5a), becomes the state of High Temperature High Pressure.
The refrigerant vapour of above-mentioned High Temperature High Pressure has arrived certain pressure, can push the part of the drain tap that was blocking up exhaust port (6a) originally open, elasticity owing to the elastic support portion (121) of stopper (120) descends again, at this moment can bump with around the top tap hole (6a) of upper bearing (6), produce the metal friction sound simultaneously.
But the above-mentioned Crunch that produces thereby has reduced noise because the noise reduction groove (124) of stopper (120) absorbs.
Such from the above mentioned, the noise reduction groove is set on stopper according to the present invention, absorb the Crunch that produces owing to moving up and down of drain tap, this is exactly the silencer of hermetic rotary compressor of the present invention.
Claims (1)
1, a kind of silencer of exhaust valve of hermetic rotary compressor, described compressor comprises seal container, the seal container bottom be provided with by upper bearing, lower bearing, cylinder, the compression mechanical part that rolling piston and eccentric wheel constitute; Upper bearing is provided with exhaust port, the top is provided with baffler, drain tap is set above the exhaust port, it is characterized in that, the stopper of drain tap top is provided with integrally formed noise reduction groove, described noise reduction groove is arranged on elastic support portion place along the length direction of the elastic support portion of stopper, and an end of described noise reduction groove is circular, and the other end is a rectangle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB011441755A CN1320281C (en) | 2001-12-14 | 2001-12-14 | Silencer of exhaust valve for sealed rotary compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB011441755A CN1320281C (en) | 2001-12-14 | 2001-12-14 | Silencer of exhaust valve for sealed rotary compressor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1363777A CN1363777A (en) | 2002-08-14 |
| CN1320281C true CN1320281C (en) | 2007-06-06 |
Family
ID=4677361
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB011441755A Expired - Fee Related CN1320281C (en) | 2001-12-14 | 2001-12-14 | Silencer of exhaust valve for sealed rotary compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1320281C (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100398835C (en) * | 2003-05-22 | 2008-07-02 | 乐金电子(天津)电器有限公司 | Noise reducing device for rotary compressor |
| CN100383399C (en) * | 2003-12-12 | 2008-04-23 | 乐金电子(天津)电器有限公司 | Shading device for lowering noise in closed type revolving compressor |
| CN105221434B (en) * | 2015-10-21 | 2017-11-21 | 珠海凌达压缩机有限公司 | Baffle plate and there is its compressor |
| CN106678044B (en) * | 2017-01-17 | 2019-03-05 | 西安庆安制冷设备股份有限公司 | A kind of Totally-enclosed-type rotor-type compressor |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4730996A (en) * | 1985-07-29 | 1988-03-15 | Kabushiki Kaisha Toshiba | Rotary compressor with two discharge valves having different frequencies |
| US5062779A (en) * | 1989-03-09 | 1991-11-05 | Expressa Brasileira De Compressores S.A.-Embraco | Outlet valve for a rolling piston rotary compressor |
| CN1228511A (en) * | 1998-03-11 | 1999-09-15 | 三星电子株式会社 | Discharge valve assembly for compressor |
-
2001
- 2001-12-14 CN CNB011441755A patent/CN1320281C/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4730996A (en) * | 1985-07-29 | 1988-03-15 | Kabushiki Kaisha Toshiba | Rotary compressor with two discharge valves having different frequencies |
| US5062779A (en) * | 1989-03-09 | 1991-11-05 | Expressa Brasileira De Compressores S.A.-Embraco | Outlet valve for a rolling piston rotary compressor |
| CN1228511A (en) * | 1998-03-11 | 1999-09-15 | 三星电子株式会社 | Discharge valve assembly for compressor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1363777A (en) | 2002-08-14 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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| C14 | Grant of patent or utility model | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070606 Termination date: 20100114 |