CN1548760A - Vibration damping structure for closed rotary compressor - Google Patents
Vibration damping structure for closed rotary compressor Download PDFInfo
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- CN1548760A CN1548760A CNA031298729A CN03129872A CN1548760A CN 1548760 A CN1548760 A CN 1548760A CN A031298729 A CNA031298729 A CN A031298729A CN 03129872 A CN03129872 A CN 03129872A CN 1548760 A CN1548760 A CN 1548760A
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- compressor
- vibration damper
- vibration
- rotary compressor
- liquid container
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Abstract
The sealed rotary compressor includes sealed container of the compressor, liquid storage and S-shaped pipe connected to outside of the container and triangular base plate connected to the bottom of the container, and the triangular base plate is fixed to the pedestal of the refrigerator unit and has three damping units under its three corners. The present invention features that the three damping units under the triangular base plate are made of material with hardness higher than that of the material for the other damping units. The said structure can reduce the vibration of the liquid storage and the S-shaped pipe in tangent direction during the compressor operation and lower the noise of the compressor obviously.
Description
Technical field
The present invention relates to closed rotary compressor, relate in particular to its shock-damping structure.
Background technique
Closed rotary compressor generally is applied in the freezing cycle device of electric equipments such as air-conditioning, and it is used for compression refrigerant.Its structure gives simple declaration to it as shown in Figure 1 below.
As shown in the figure, in existing closed rotary compressor, the electric structure portion (4) that is made of rotor (2) and stator (3) is equipped with in the inside of seal container (1), and the center of rotor (3) has vertically formed axis hole (2a), has running shaft (5) to be pressed in the axis hole and fixing.
In addition, the lower end of running shaft (5) has formed the eccentric part of one (6) with it, and the outside of this eccentric part (6) has rotary-piston (rolling piston) (7) to insert.Compression structure part (12) is housed in addition, this compression structure part can be used for the compression volume (8) of compression refrigerant gas along with the rotation of rotary-piston (7) forms, and it is by cylinder (cylinder) (9) and upper and lower part bearing (bearing) (10) (11) formation.
In addition, outlet one side that goes up the tap hole (10a) that forms at upper bearing (10) is equipped with valve member (15), and the baffler (16) that is used for subduing exhaust noise is housed above the valve member (15).
In addition, the outside of seal container (1) is equipped with and is used for preventing the liquid container (accumulator) (17) that liquid refrigerants flows into, and the upper end of liquid container (17) is connecting S-pipe (18), the circuit cold media air can be flowed to liquid container (17) by it.
In addition, discharge tube (19) is housed above the seal container (1), the high pressure refrigerant gas that has been compressed in compression structure part (12) can be discharged by it.
In having the existing closed rotary compressor of said structure, if power connection, the rotor (2) of electric structure portion (4) will rotate so, and the running shaft (5) that thereupon is right after in rotor (2) also can rotate.
Simultaneously, rotation along with running shaft (5), the eccentric part (5a) that forms in the lower end of running shaft (5) and be connected also rotation together of rotary-piston (7) on the eccentric part (5a), thus it is interior and be compressed into the cold media air of High Temperature High Pressure that the cold media air of the low-temp low-pressure suction port by cylinder (9) is drawn into compression volume (8).
In addition, can pass through valve member (15) as the top cold media air that has been compressed said and discharge, be discharged into the inside of seal container (1) then by the through hole (16a) of baffler (16).The cold media air of the High Temperature High Pressure of Pai Chuing can flow out from the gap between rotor (2) and the stator (3) like this, is discharged into the outside by discharge tube (19) then.
In addition, the cold media air that flows in the air compression tube (17) by S-pipe (18) can be separated into liquid refrigerants and gaseous coolant, and gaseous coolant is transported in the compression volume (8) of cylinder (9) again then, thereby realizes compression.
As shown in Figure 2, the following triangle bottom plate (TRIPLATE) (21) that connecting with seal container (1) of the compressor of said structure, the structure of triangle bottom plate (21) is: the following vibration damper (22) that the rubber material is housed respectively at its 3 angles is fixed on substrate (base plate) (not shown) of air conditioner device (unit) with this state then.
In addition, as shown in Figure 3, when the cold media air in the compressor is compressed, the compression torque meeting generation rapid change of compression structure part, in contrast, motor torque is then more stable.According to whirling vibration equation J θ+C θ+K θ=T
L-T
M, the residual error torque meeting of compression torque and motor torque causes the whirling vibration of compressor, and the vibration of Chan Shenging can reduce under the effect that is installed in the vibration damper (22) on 3 angles of triangle bottom plate (21) respectively to some extent like this.
But in aforesaid existing closed rotary compressor, though the effect by the vibration damper (22) on 3 angles that are installed in triangle bottom plate (21), the vibration that produces during driven compressor has weakening to a certain degree.But it does not consider that the residual error torque meeting of compression torque and motor torque becomes the inducement of the tangential vibration that causes liquid container (17) and S-pipe (18), therefore it can not reduce the vibration of the integral body of compressor, existing in prior technology problem that Here it is effectively.
Summary of the invention
In order to overcome the above-mentioned shortcoming that prior art exists, the invention provides a kind of shock-damping structure of closed rotary compressor, by adopting a kind of while can be, and can greatly reduce the vibration of compressor with respect to the vibration damper of the tangential vibration of liquid container and S-pipe.
The technical solution adopted for the present invention to solve the technical problems is:
A kind of damper mechanism of closed rotary compressor, it is characterized in that: closed rotary compressor has following structure, the outside that is the seal container of compressor is connecting liquid container and S-pipe, connecting triangle bottom plate below, above-mentioned triangle bottom plate is fixed on the substrate of air conditioner device, and its 3 angles below cushion vibration damper.Particularly in the vibration damper on being installed in above-mentioned 3 angles, the vibration damper that is positioned on the diagonal of liquid container and S-pipe is compared with all the other vibration dampers, and the rigidity of its material is higher.
Description of drawings
The present invention is further described below in conjunction with drawings and Examples.
Fig. 1 is the longitdinal cross-section diagram of the structure of existing closed rotary compressor
Fig. 2 is the stereogram of the installment state of existing closed rotary compressor
Fig. 3 is used for illustrating the compression torque of compressor and the figure plotted curve of motor torque
Fig. 4 is the stereogram of the installment state of closed rotary compressor of the present invention
Fig. 5 is the FRF curve comparison diagram of existing and compressor of the present invention
Fig. 6 is the tangential vibration comparison diagram of compressor existing and of the present invention
Fig. 7 is the parts transversely schematic cross-section of spinning movement that has shown the rotary-piston of compressor
Fig. 8 revolves the change curve of compression torque in the process that turns around for the rotary-piston in the compressor
The number in the figure explanation:
101: seal container 102: liquid container (accumulator)
103:S-manages (pipe) 104: triangle bottom plate (tri-plate)
110: vibration damper
Embodiment
Example with reference to the accompanying drawings further describes in detail the closed rotary compressor of the present invention with said structure.
As shown in Figure 4, the liquid container (102) that is used for separating liquid refrigerants is equipped with in the outside of the seal container of compressor (101), and the upper end of above-mentioned liquid container (102) is connecting S-pipe (103), the circuit cold media air can be flowed to liquid container (102) by it.
In addition, the following triangle bottom plate (104) that connecting of above-mentioned seal container (101), be equipped with respectively on 3 angles of above-mentioned triangle bottom plate (104) vibration damper (110:110 ', 110 ", 110 ); in these vibration dampers; (110 ") (110 ) are compared, and the rigidity of its material is higher with remaining vibration damper to be positioned at vibration damper (110 ') on the diagonal of liquid container (102) and S-pipe (103).
Promptly be positioned at liquid container (102) and S-the pipe (103) diagonal on vibration damper (110 ') be to make with the higher plastic materials of rigidity (P), (110 ") (110 ) then use rubber material (G) to make to remaining vibration damper, can reduce the vibration that produces in tangent direction like this.
Shown in the comparison curves of FRE among Fig. 5, if as the present invention, vibration damper (110 ') on the diagonal that is positioned at liquid container (102) and S-pipe (103) is made with the higher plastic materials of rigidity (P), and its rate response function will be lower in the drive area so.If the different vibration damper of rigidity (110) therefore is installed as the present invention, the prior art of the vibration damper identical with rigidity is installed is compared so, approximately can reduce the vibrating noise about 34%.
In addition, for the angular range that the higher relatively vibration damper (110) of aforesaid rigidity is installed, be benchmark with liquid container (102) or S-pipe (103), its scope is comparatively suitable at 90 °～270 °.As Fig. 7, shown in Figure 8, rotary-piston revolves the variation of compressing torque in the process of turning around as can be seen, during the rotary-piston rotation, the load that rotary-piston bore is vertically to act on the line of the contact of blade (vane) contact that connects rotary-piston and cylinder, be benchmark with liquid container (accumulation) this moment, 90 °～270 ° interval is the zone of load to the diagonal effect of liquid container, if therefore improve this interval rigidity of support, vibration also will reduce thereupon so.
The effect of invention
Describe in detail as top, in the shock-damping structure of closed rotary compressor of the present invention, when on 3 angles of triangle bottom plate, respectively vibration damper being installed, 2 vibration dampers of vibration damper and all the other that are installed on the logical diagonal of pressurized air are compared, and the rigidity of its material is higher.Therefore the tangential vibration of liquid container (102) and S-pipe (103) in the time of can reducing driven compressor by this structure, thus the noise of compressor is obviously reduced.The present invention that Here it is the effect that can reach.
Claims (2)
1, a kind of shock-damping structure of closed rotary compressor, comprise liquid container and S-pipe that the outside of the seal container of compressor is connecting, connecting triangle bottom plate below, described triangle bottom plate is fixed on the substrate of air conditioner device, and its 3 angles below cushion vibration damper; It is characterized in that in the vibration damper on being installed in described 3 angles, the vibration damper that is positioned on the diagonal of liquid container and S-pipe is compared with all the other vibration dampers, the rigidity of its material is higher.
2, the shock-damping structure of closed rotary compressor according to claim 1 is characterized in that the mounting point of the vibration damper that described rigidity is higher is: be in 90 °～270 ° the scope of benchmark with liquid container and S-pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031298729A CN100414112C (en) | 2003-05-22 | 2003-05-22 | Vibration damping structure for closed rotary compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031298729A CN100414112C (en) | 2003-05-22 | 2003-05-22 | Vibration damping structure for closed rotary compressor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1548760A true CN1548760A (en) | 2004-11-24 |
| CN100414112C CN100414112C (en) | 2008-08-27 |
Family
ID=34322523
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB031298729A Expired - Fee Related CN100414112C (en) | 2003-05-22 | 2003-05-22 | Vibration damping structure for closed rotary compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100414112C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101441006B (en) * | 2007-11-21 | 2013-04-03 | 三菱电机株式会社 | Cooling unit and compressor |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4497587A (en) * | 1983-06-20 | 1985-02-05 | General Electric Company | Three-pad journal bearing |
| US5221192A (en) * | 1992-07-16 | 1993-06-22 | Carrier Corporation | Elastomeric compressor stud mount |
| JPH08312641A (en) * | 1995-05-15 | 1996-11-26 | Mitsubishi Heavy Ind Ltd | Dynamic pressure gas bearing |
| US5964579A (en) * | 1997-06-24 | 1999-10-12 | Rheem Manufacturing Company | Prestressed resilient compressor mount apparatus |
| KR100380653B1 (en) * | 2000-09-05 | 2003-04-23 | 삼성전자주식회사 | Compressor assembly |
-
2003
- 2003-05-22 CN CNB031298729A patent/CN100414112C/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101441006B (en) * | 2007-11-21 | 2013-04-03 | 三菱电机株式会社 | Cooling unit and compressor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100414112C (en) | 2008-08-27 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080827 Termination date: 20110522 |