CN1880774A - Muffler for hermetic rotary compressor - Google Patents
Muffler for hermetic rotary compressor Download PDFInfo
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- CN1880774A CN1880774A CN 200510013820 CN200510013820A CN1880774A CN 1880774 A CN1880774 A CN 1880774A CN 200510013820 CN200510013820 CN 200510013820 CN 200510013820 A CN200510013820 A CN 200510013820A CN 1880774 A CN1880774 A CN 1880774A
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- upper bearing
- silencing apparatus
- axle
- compressor
- rotary compressor
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Abstract
The invention relates to a sound absorber of sealed rotation compressor, which comprises a motor stator and a rotor mounted at the upper part inside the compressor frame; the lower end of eccentric axle at the middle of rotor is arranged with compressor; inside the cylinder at the lower part of sealed frame, the eccentric part of eccentric axle is arranged with rolling piston; the upper and lower ends surfaces of cylinder are fixed with upper and lower bearings that supporting the rotation of eccentric axle; the upper bearing is mounted with a sound absorber through the axle hole into the upper bearing neck axle; the axle hole and the neck axle are sealed connected. The invention can avoid the leakage of high pressure gas, via the seal connection between the axle hole and the neck axle, to improve the efficiency and reduce the noise.
Description
Technical field
The present invention relates to be used for the device of compressor, specifically is a kind of muffler for hermetic rotary compressor.
Background technique
In general, according to the configuration of motor and compressor, compressor is divided into hermetic type compressor or divergence type compressor.Wherein, hermetic type compressor is that motor and compressor are arranged in the seal container together.Fig. 1 is the vertical profile structural representation of closed rotary compressor in the prior art; Fig. 2 is the part enlarged view of Fig. 1; Fig. 3 is the plan structure schematic representation of the silencing apparatus of closed rotary compressor in the prior art;
As shown in the figure, closed rotary compressor of the prior art is stator 2 and the rotor 3 that the top in airtight casing 1 is provided with motor, and there is eccentric shaft 4 at the center of its rotor 3, and the lower end of eccentric shaft 4 is provided with compressor.Cylinder of compressor body 5 is positioned at the bottom of airtight casing 1, the eccentric part 6 that eccentric shaft 4 is arranged in the cylindrical cylinder hole of cylinder block 5 central authorities, on the outer circumferential face of eccentric part 6 rolling rotor is arranged, eccentric part 6 carries out circumference when rotatablely moving with eccentric shaft 4 in cylinder-bore, the rolling rotor compression enters the gaseous coolant in the cylinder block 5.Also be provided with the baffle plate (not shown) of separating high and low nip refrigerant in the cylinder block 5, the upper and lower end face of cylinder block is fixed with blanket gas cylinder body end face and supports the upper bearing 7 and the lower bearing 8 of eccentric shaft 4 rotations.
Be provided with 13 sucking pipes 9 that connect gas-liquid separator in the side of airtight casing 1, sucking pipe 9 is in the cold pressing chamber 10 that whenever enters compressor cylinder block 5.The upper-end surface of upper bearing 7 is equipped with drain tap (not shown), drain tap is discharged to the pressing chamber 10 of refrigerant by cylinder block 5 in the silencing apparatus 11, again by being discharged in the silencing apparatus 11 in the airtight casing 1, the top of airtight casing 1 is provided with outlet pipe 12, and outlet pipe 12 enters the refrigerant in the airtight casing 1 circulatory system of refrigerant.
Above-mentioned closed rotary compressor of the prior art is done following operation.
Power connection is behind motor, rotor 3 rotations in the airtight casing 1, make eccentric shaft 4 and rolling piston 13 rotations, and in cylinder block 5 compression refrigerant, when the refrigerant in the pressing chamber 10 reaches certain pressure, the drain tap (not shown) that is installed in upper bearing 7 upper-end surfaces is opened, and compressed refrigerant enters silencing apparatus 11, enters into airtight casing 1 at the exhaust port 14 through silencing apparatus 11.When the pressure of pressing chamber 10 descended, drain tap (not shown) was closed, and prevented that refrigerant from refluxing, and this compressor that is is in the state that sucks refrigerant.
But flat top surface silencing apparatus 11 axis holes 15 of common said structure are bigger,, axis hole 15 forms the gap with the neck axle of upper bearing 7, causes the leakage of pressurized gas, has greatly reduced the efficient of baffler 11, and has increased the noise of compressor.
Summary of the invention
The present invention is for solving the problems referred to above of prior art, and proposes can not leak between the neck axle of a kind of axis hole and upper bearing the muffler for hermetic rotary compressor of pressurized gas.
The present invention realizes by following technological scheme.
A kind of silencing apparatus of closed rotary compressor, comprise motor stator and rotor that airtight casing internal upper part is provided with, the eccentric shaft lower end of rotor center is provided with compressor, in the compressor cylinder block of airtight casing bottom, on the eccentric part outer circumferential face of eccentric shaft rolling piston is arranged, the upper and lower end face of cylinder is fixed with sealing and supports the upper bearing and the lower bearing of eccentric shaft rotation, and the silencing apparatus that penetrates upper bearing neck axle in axis hole is installed on the upper bearing; Make progress integrally formed and the airtight outer ring wall of neck axle upper bearing along silencing apparatus end face axis hole.
Described muffler for hermetic rotary compressor, it makes progress the outer ring wall integrally formed and the neck axle of upper bearing is an interference fit along silencing apparatus end face axis hole.
Described muffler for hermetic rotary compressor, it is connected with the outside thread journal threads of upper bearing 7 along the internal thread outer ring wall that silencing apparatus end face axis hole makes progress integrally formed.
She Ji the present invention has avoided the leakage of pressurized gas at the two, thereby has greatly improved the efficient of baffler, and significantly reduced the noise of compressor because airtight connection between the neck axle of the axis hole of silencing apparatus and upper bearing is very close to each other like this.
Description of drawings
Fig. 1 is the vertical profile structural representation of closed rotary compressor in the prior art;
Fig. 2 is the part enlarged view of Fig. 1;
Fig. 3 is the plan structure schematic representation of prior art closed rotary compressor silencing apparatus;
Fig. 4 is the A-A view of Fig. 3;
The local vertical profile structural representation of Fig. 5 closed rotary compressor of the present invention;
Fig. 6 is a local vertical profile structural representation of using closed rotary compressor of the present invention;
Fig. 7 plan structure schematic representation of the present invention;
Fig. 8 is the A-A view of Fig. 7;
Fig. 9 is the local vertical profile structural representation of another embodiment of the present invention;
Figure 10 is the partial enlarged drawing of Fig. 9 A;
Figure 11 is the plan structure schematic representation of another embodiment of the present invention;
Figure 12 is the A-A view of Figure 11.
Among the figure: 1. seal container 2. stators
3. rotor 4. eccentric shafts
5. cylinder block 6. eccentric parts
7.7a. upper bearing 8. lower bearings
9. sucking pipe 10. pressing chambers
11.11a.11b. silencing apparatus 12. outlet pipes
13. gas-liquid separator 14.14a.14b. exhaust port
15. axis hole 16. bolts
17. outer ring wall 18. outside thread axle journals
19. internal thread outer ring wall.
Embodiment
The present invention is described in detail below in conjunction with drawings and Examples.
Parts identical among the figure use same symbol.
A kind of silencing apparatus of closed rotary compressor, comprise motor stator 2 and rotor 3 that airtight casing 1 internal upper part is provided with, eccentric shaft 4 lower ends at rotor 3 centers are provided with compressor, in the compressor cylinder block 5 of airtight casing 1 bottom, on eccentric part 6 outer circumferential faces of eccentric shaft 4 rolling piston 13 is arranged, the upper and lower end face of cylinder block 5 is fixed with sealing and supports the upper bearing 7 and the lower bearing 8 of eccentric shaft 4 rotations, and the silencing apparatus 11 that penetrates upper bearing 7 neck axles in axis hole 15 is installed on the upper bearing 7; Make progress integrally formed and the airtight outer ring wall 17 of neck axle upper bearing 7 along silencing apparatus 11 end face axis holes 15.
As shown in the figure, closed rotary compressor of the prior art is stator 2 and the rotor 3 that the top in airtight casing 1 is provided with motor, and there is eccentric shaft 4 at the center of its rotor 3, and the lower end of eccentric shaft 4 is provided with compressor.Cylinder of compressor body 5 is positioned at the bottom of airtight casing 1, the eccentric part 6 that eccentric shaft 4 is arranged in the cylindrical cylinder hole of cylinder block 5 central authorities, on the outer circumferential face of eccentric part 6 rolling rotor is arranged, eccentric part 6 carries out circumference when rotatablely moving with eccentric shaft 4 in cylinder-bore, the rolling rotor compression enters the gaseous coolant in the cylinder block 5.Also be provided with the baffle plate (not shown) of separating high and low nip refrigerant in the cylinder block 5, the upper and lower end face of cylinder block is fixed with blanket gas cylinder body end face and supports the upper bearing 7 and the lower bearing 8 of eccentric shaft 4 rotations.
Be provided with the sucking pipe 9 that is connected with gas-liquid separator 13 in the side of airtight casing 1, sucking pipe 9 is in the cold pressing chamber 10 that whenever enters compressor cylinder block 5.The upper-end surface of upper bearing 7 is equipped with drain tap (not shown), drain tap is discharged to the pressing chamber 10 of refrigerant by cylinder block 5 in the silencing apparatus 11, again by being discharged in the silencing apparatus 11 in the airtight casing 1, the top of airtight casing 1 is provided with outlet pipe 12, and outlet pipe 12 enters the refrigerant in the airtight casing 1 circulatory system of refrigerant.
Described muffler for hermetic rotary compressor, the outer ring wall 17 that upwards forms along silencing apparatus 11 end face axis holes 15 is interference fit with the neck axle of upper bearing 7.
Closed rotary compressor among the present invention is done following operation.
Power connection is behind motor, rotor 3 rotations in the airtight casing 1, make eccentric shaft 4 and rolling piston 13 rotations, and in cylinder block 5 compression refrigerant, when the refrigerant in the pressing chamber 10 reaches certain pressure, the drain tap (not shown) that is installed in upper bearing 7 upper-end surfaces is opened, and compressed refrigerant enters silencing apparatus 11a, enters into airtight casing 1 at the exhaust port 14a through silencing apparatus 11a.When the pressure of pressing chamber 10 descended, drain tap (not shown) was closed, and prevented that refrigerant from refluxing, and this compressor that is is in the state that sucks refrigerant.
Silencing apparatus 11a is installed in the top of upper bearing 7, and silencing apparatus 11a is the thin-walled case, makes progress integrally formed and the airtight outer ring wall 17 of neck axle upper bearing 7 along silencing apparatus 11 end face axis holes 15.
Silencing apparatus 11a inside is cavity, and the bottom surface opening covers on upper bearing 7 tops, penetrates in the axis hole 15 in the middle of the end face and forms interference fit with the neck shaft portion of upper bearing 7.Silencing apparatus 11a is fixed on the upper bearing 7 with bolt 16, and the upper-end surface of silencing apparatus 11a and upper bearing 7 surrounds cavity.After being positioned at refrigerant that the drain tap of upper bearing 7 upper-end surfaces discharges and entering the cavity of silencing apparatus 11a, the exhaust port 14a by silencing apparatus 11a enters in the airtight casing 1.
The described muffler for hermetic rotary compressor of another embodiment of the present invention, the internal thread outer ring wall 19 that upwards forms along silencing apparatus 11b end face axis hole 15 is connected with outside thread axle journal spiral shell 18 lines of upper bearing 7a.
Silencing apparatus 11b inside is cavity, and the bottom surface opening penetrates in the internal thread outer ring wall 19 of top axis hole 15 and the outside thread neck axle 18 of the upper bearing 7a that is spirally connected, thereby covers on the upper bearing 7a.
Silencing apparatus 11b is fixed on the upper bearing 7a with bolt 16, and the upper-end surface of silencing apparatus 11b and upper bearing 7a surrounds cavity.After being positioned at refrigerant that the drain tap of upper bearing 7a upper-end surface discharges and entering the cavity of silencing apparatus 11b, the exhaust port 14b by silencing apparatus 11b enters in the airtight casing 1.
Because airtight connection the between the axis hole 15 of silencing apparatus 11a or 11b and the neck axle of upper bearing 7 or 7a is very close to each other, has avoided the leakage of pressurized gas at the two, thereby has significantly reduced the noise of compressor.
Claims (3)
1. the silencing apparatus of a closed rotary compressor, comprise motor stator (2) and rotor (3) that airtight casing (1) internal upper part is provided with, eccentric shaft (4) lower end at rotor (3) center is provided with compressor, in the compressor cylinder block (5) of airtight casing (1) bottom, on eccentric part (6) outer circumferential face of eccentric shaft (4) rolling piston (13) is arranged, on the cylinder block (5), the lower end surface is fixed with sealing and supports the upper bearing (7) and the lower bearing (8) of eccentric shaft (4) rotation, and the silencing apparatus (11) that penetrates upper bearing (7) neck axle in axis hole (15) is installed on the upper bearing (7); It is characterized in that making progress integrally formed and the airtight outer ring wall (17) of neck axle upper bearing (7) along silencing apparatus (11) end face axis hole (15).
2. muffler for hermetic rotary compressor according to claim 1 is characterized in that the outer ring wall (17) that upwards forms along silencing apparatus (11) end face axis hole (15) and the neck axle of upper bearing (7) are interference fit.
3. muffler for hermetic rotary compressor according to claim 1 is characterized in that being threaded with the outside thread axle journal (18) of upper bearing (7) along the internal thread outer ring wall (19) that silencing apparatus (11) end face axis hole (15) upwards forms.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510013820 CN1880774A (en) | 2005-06-15 | 2005-06-15 | Muffler for hermetic rotary compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510013820 CN1880774A (en) | 2005-06-15 | 2005-06-15 | Muffler for hermetic rotary compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1880774A true CN1880774A (en) | 2006-12-20 |
Family
ID=37519085
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200510013820 Pending CN1880774A (en) | 2005-06-15 | 2005-06-15 | Muffler for hermetic rotary compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1880774A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102338093A (en) * | 2010-07-26 | 2012-02-01 | 乐金电子(天津)电器有限公司 | Silencer structure of closed compressor |
| CN103415706A (en) * | 2010-12-24 | 2013-11-27 | 三洋电机株式会社 | Hermetically sealed rotary compressor |
-
2005
- 2005-06-15 CN CN 200510013820 patent/CN1880774A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102338093A (en) * | 2010-07-26 | 2012-02-01 | 乐金电子(天津)电器有限公司 | Silencer structure of closed compressor |
| CN103415706A (en) * | 2010-12-24 | 2013-11-27 | 三洋电机株式会社 | Hermetically sealed rotary compressor |
| CN103415706B (en) * | 2010-12-24 | 2016-06-29 | 三洋电机株式会社 | Closed rotary compressor |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |