CN101713406A - Oil leakage preventer of closed-type compressor - Google Patents
Oil leakage preventer of closed-type compressor Download PDFInfo
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- CN101713406A CN101713406A CN200810152015A CN200810152015A CN101713406A CN 101713406 A CN101713406 A CN 101713406A CN 200810152015 A CN200810152015 A CN 200810152015A CN 200810152015 A CN200810152015 A CN 200810152015A CN 101713406 A CN101713406 A CN 101713406A
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- bearing
- guide portion
- oil
- refrigerant
- oil leakage
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Abstract
The invention discloses an oil leakage preventer of a closed-type compressor, comprising an air cylinder, a bearing and a muffler. The air cylinder is arranged in an internal space of a closed shell; the bearing covers the upper side and the lower side of the air cylinder, and a bearing hole for a rotating shaft to penetrate through is formed at the center of the bearing; and the muffler is combined with the outer side face of the bearing. The muffler comprises a resonance-leading part, a discharge-leading part and more than one air vents, wherein the discharge-leading part is communicated with a resonance space enclosed by the resonance-leading part and axially extends; and the air vents are formed on the peripheral surface of the discharge-leading part and communicated with the internal space of the shell. The oil leakage preventer enables engine oil in cooling mediums discharged from a first compression space and a second compression space to fully circulate in the resonance space and be separated when passing the discharge-leading part, thereby effectively preventing the engine oil from flowing into a refrigeration circuit and ensuring the sufficient lubrication of compressor parts.
Description
Technical field
The present invention relates to closed-type compressor, particularly relate to prevent machine oil with refrigerant from baffler row oil leakage preventer to the closed-type compressor in enclosure interior space.
Background technique
Usually, the closed-type compressor driving force that is provided with the mechanism portion that produces driving force and accepts mechanism portion in airtight housing is used for the compression mechanical part of compression refrigerant.
Inner space at the housing of above-mentioned closed-type compressor is filled with a certain amount of machine oil.During compressor operating, machine oil is supplied to compression mechanical part, and each slide member is lubricated.A part that is filled in the machine oil in enclosure interior space is recovered after refrigerant is discharged to refrigerating circuit, and carries out said process repeatedly.Particularly, for utilizing the rotatablely moving concerning the rotary compressor that refrigerant compresses of rotary-piston, if this rotary compressor is the high-pressure sealed formula compressor that is filled with the high pressure refrigerant in enclosure interior, then machine oil can easily be discharged from housing with the refrigerant that is discharged to the enclosure interior space.
But,,, promptly form on the end face in sympathetic response space and be formed with tap hole in the plane side of discharging the baffler that side installs around compression mechanical part for existing rotary compressor.Therefore refrigerant of discharging from compression mechanical part and machine oil can directly be arranged inner space to housing by tap hole, cause flowing to the oil level increase in enclosure interior space, thereby cause being used for the oil level deficiency of lubricate compressors structure portion.
Summary of the invention
In order to address the above problem, to the object of the present invention is to provide a kind of machine oil that can prevent that compression mechanical part from discharging to flow to the baffler outside, thereby avoid the oil leakage preventer of the closed-type compressor of compressor inner engine oil deficiency.
In order to achieve the above object, the oil leakage preventer of closed-type compressor of the present invention comprises: be arranged in the inner space of closed shell, have a cylinder of cylindrical shape compression volume; Cover the both sides up and down of cylinder, be formed with the bearing and the outer side surface that is combined in bearing that make bearing hole that running shaft runs through and supporting rotating shaft at the center, reduce the baffler of the noise that produces when refrigerant is discharged, sympathetic response spatial communication and the discharge guide portion of extending vertically that described baffler comprises the sympathetic response guide portion, surround with the sympathetic response guide portion and be formed on the side face of discharging guide portion and with the more than one tap hole of enclosure interior spatial communication.
Preferably, formed bearing portion around the bearing hole of above-mentioned bearing, the upper end of discharging guide portion curves inwardly towards bearing portion direction outstandingly, is discharging the inboard oil separation space of separating refrigerant and machine oil that forms of guide portion.The volume of oil separation space is less than the volume in sympathetic response space.
Described tap hole forms equally spacedly along the side face of discharging guide portion.Preferably, on the discharge guide portion beyond the described tap hole center that is formed on the 1st exhaust port by upper bearing and two the tangent axial section scopes of the outer circumferential face of discharging guide portion.
Preferably, on tap hole, be combined with the oil separation part part of separated oil when discharging refrigerant.
The oil leakage preventer of closed-type compressor of the present invention, in the 1st baffler of the refrigerant that compiles the discharge of the 1st compression volume and the 2nd compression volume, has the discharge guide portion of certain altitude axial formation, on the discharge guide portion, form tap hole, make the circulation and separated when discharging guide portion fully in the sympathetic response space of machine oil in the refrigerant that the 1st compression volume and the 2nd compression volume discharge, can prevent effectively that machine oil from flowing to refrigerating circuit, thereby guarantee that the parts in the compressor obtain lubricated fully.
Description of drawings
Fig. 1 is an embodiment's of a rotary compressor of the present invention longitudinal section schematic representation;
Fig. 2 is the decomposing schematic representation of the 1st baffler of Fig. 1 middle and upper part bearing;
Fig. 3 is the assembling schematic representation of the 1st baffler of Fig. 1 middle and upper part bearing;
Fig. 4 and Fig. 5 are the generalized sections of edge " I-I " line among Fig. 3, show the position of tap hole respectively;
Fig. 6 is the separation process schematic representation of refrigerant and machine oil among Fig. 1.
Wherein:
310: the 1 cylinders of 300: the 1 compression mechanical parts
320: upper bearing 321: bearing portion
322: 323: the 1 exhaust ports of bearing hole
Baffler 351 in 350: the 1: the sympathetic response space
352: discharge guide portion 353: tap hole
354: 400: the 2 compression mechanical parts of oil separation space
Baffler 500 in 450: the 2: intermediate bearing
Embodiment
Embodiment with reference to the accompanying drawings is elaborated to the oil leakage preventer of closed-type compressor of the present invention.
As shown in Figure 1, the complex rotary compressor with oil leakage preventer of the present invention is provided with 230 that constitute by stator 210, rotor 220 and running shaft, as to produce driving force mechanism portion 200 at the upside of housing 100 confined spaces; Be provided with the 1st compression mechanical part 300 and the 2nd compression mechanical part 400 that the rotating force that utilizes mechanism portion 200 to produce compresses refrigerant at the confined space downside of housing 100.
The 1st compression mechanical part 300 comprises: the 1st cylinder 310, upper axis board (hereinafter referred to as " upper bearing ") the 320, the 1st rotary-piston the 330, the 1st blade (figure slightly), the 1st discharge valve 340 and the 1st baffler 350.The 2nd compression mechanical part 400 comprises: the 2nd cylinder 410, lower bearing the 420, the 2nd rotary-piston the 430, the 2nd blade (figure slightly), the 2nd discharge valve 440 and the 2nd baffler 450.Between the 1st cylinder 310 and the 2nd cylinder 410, be provided with the jack shaft board (hereinafter referred to as " intermediate bearing ") 500 of the 2nd compression volume V2 of the 1st compression volume V1 that divides the 1st cylinder 310 and the 2nd cylinder 410.
Here, on the Lower Half of housing 100, be combined with the suction pipe 700 that connects liquid container 600, be combined with in the upper end of housing 100 and make the 1st compression mechanical part 300 and the 2nd compression mechanical part 400 rows flow to the discharge tube 800 of refrigeration system to the refrigerant of confined space.The 1st suction port 311 of the 1st compression mechanical part 300 directly is connected on the suction pipe 700, and the 2nd suction port 411 of the 2nd compression mechanical part 400 is connected in parallel on the 1st exhaust port 311 of the 1st compression mechanical part 300 by communication paths SF.Described communication paths SF is by being formed on the circuitous hole 312 in the middle of the 1st suction port 311 and being formed on the circuitous hole 312 of connection on the intermediate bearing 500 and the intercommunicating pore 511 of the 2nd suction port 411 constitutes.
The 1st suction port 311 radially is being penetratingly formed, and circuitous hole 312 is penetratingly formed to intermediate bearing 500 sides, and intercommunicating pore 511 axially is being penetratingly formed, and the 2nd suction port 411 tiltedly forms to the 2nd compression volume V2 inclination.The diameter in circuitous hole 312 is smaller or equal to the diameter of the 1st suction port 311, and the diameter of intercommunicating pore 511 can be identical with the diameter in circuitous hole 312.The outlet end of the 2nd suction port 411 is formed obliquely, and is communicated with the inner peripheral surface of the 2nd compression volume V2.The bight of circuitous hole 312 entry ends has circular arc or leaning structure, so that refrigerant can flow in the intercommunicating pore 511 from the 1st suction port 311 swimmingly.The 2nd suction port 411 can be formed obliquely by cutting is carried out in the bight of the inner peripheral surface of the 2nd cylinder 410.Though can running through obliquely, diagram not, the 2nd suction port 411 be formed on the 2nd cylinder 410.
As Fig. 2～shown in Figure 4, be formed with bearing portion 321 by certain altitude at radial support running shaft 230 in the central authorities of bearing 320.In bearing portion 321, be penetratingly formed and be useful on the bearing hole 322 that inserts running shaft 230 and running shaft 230 is supported.Be formed with the 1st exhaust port 323 of the refrigerant that is used to discharge the 1st compression volume V1 compression in a side of bearing portion 321, the 1st discharge valve 340 that the discharge capacity of compression refrigerant is controlled is installed at the discharge side end of the 1st exhaust port 323.The end face of upper bearing 320 is provided with the 1st baffler 350 of accommodating the 1st discharge valve 340 and reducing noise when refrigerant is discharged by the 1st exhaust port 323.The outer diameter D 1 of bearing portion 321 is basic identical with the inside diameter D 2 of the discharge guide portion 352 of the 1st baffler 350 described later.
The 1st baffler 350 is formed with when plane projection crooked and protrude the sympathetic response guide portion 351 of certain altitude to upside along circumferencial direction, central authorities in the sympathetic response space that sympathetic response guide portion 351 surrounds be formed with vertically extend projectedly and with the discharge guide portion 352 of sympathetic response spatial communication, be formed with the more than one tap hole 353 that is communicated with the inner space of housing 100 along the side face of discharging guide portion 352.In addition, discharge of bearing portion 321 bendings of the upper end of guide portion 352, be formed for the oil separation space 354 of separated oil in the inboard to upper bearing 350.The volume of oil separation space 354 is not discharged guide portion 352 less than the volume in sympathetic response space so that the refrigerant of discharging does not directly flow to, but diversed to sympathetic response guide portion 351.
As shown in Figure 4, tap hole 353 can form equally spacedly along the side face of discharging guide portion 352, also can be as shown in Figure 5, make on the discharge guide portion beyond center that tap hole 353 is formed on the 1st exhaust port by upper bearing and two the tangent axial section scopes of the outer circumferential face of discharging guide portion, promptly by the center of the 1st exhaust port 323 tangential extent tangent with discharging guide portion 352 peripheral surface (
) in do not form tap hole 353 and be advisable.This refrigerant that helps discharging flows through the 1st baffler 323 backs equably discharges.
In addition, though diagram not, can be when discharging refrigerant on tap hole 353 the oil separation part part (figure slightly) of separated oil.
In addition, as shown in Figure 1, run through lower bearing the 420, the 2nd cylinder 410, intermediate bearing the 500, the 1st cylinder 310 and upper bearing 320 and be formed with drain passageway 350.Drain passageway 350 will be discharged to refrigerant water conservancy diversion to the 1 baffler 350 of the 2nd baffler 350.
Effect to complex rotary compressor of the present invention with said structure describes below.
When the power supply of the stator 210 of connection mechanism portion 200 makes rotor 220 rotations, running shaft 230 is with rotor 220 rotations, the rotating force of mechanism portion 200 is passed to the 1st compression mechanical part 300 and the 2nd compression mechanical part 400, the 1st rotary-piston 330 of the 1st compression mechanical part 300 and the 2nd compression mechanical part 400 and the 2nd rotary-piston 430 carry out off-centre respectively and rotatablely move in the 1st compression volume V1 and the 2nd compression volume V2, the phase difference that is formed between the 1st blade (figure slightly) and the 2nd blade (figure slightly) is that 180 suction chambers of spending suck refrigerant.The refrigerant that flow into the 1st compression volume V1 and the 2nd compression volume V2 obtains compressing and alternately being discharged by phase difference respectively under the effect of the 1st rotary-piston 330 and the 1st blade and the 2nd rotary-piston 430 and the 2nd blade.
For example, after the 1st compression volume V1 began suction stroke, refrigerant flow into the 1st suction port 311 by liquid container 600 and suction pipe 700.Refrigerant is compressed after flowing into the 1st compression volume V1 by the 1st suction port 311, arranges to the 1st baffler 350 by the 1st exhaust port 323 then.The refrigerant that is discharged to the 1st baffler passes through the inner space of tap hole 353 rows of the 1st baffler 350 to housing 100.Carry out in the process of compression stroke at the 1st compression volume V1, the 2nd compression volume V2 that forms the 2nd cylinder 410 of 180 degree phase differences with the 1st compression volume V1 begins to carry out suction stroke.Here, the 2nd suction port 411 of the 2nd cylinder 410 is communicated with the 1st suction port 311 of the 1st cylinder 310 by intercommunicating pore (comprising circuitous hole) 511.Therefore, by the refrigerant of suction pipe 700 inflows the 1st suction port 311, flow in the 2nd suction port 411 by circuitous hole 312 and intercommunicating pore 511, refrigerant is inhaled into the 2nd compression volume V2 and compresses, and arranges then to the 2nd baffler 450.The refrigerant that is discharged to the 2nd baffler 450 flow to the inner space that arrange to housing by the tap hole 353 of the 1st baffler 350 the 1st baffler 350 backs by drain passageway DF.
Here, as shown in Figure 6, from the refrigerant of the 1st compression volume V1 and the 2nd compression volume V2 discharge back inflow the 1st baffler 350, contain a certain amount of machine oil.The refrigerant that contains organic oil is discharged noise and is obtained decay in the process of the sympathetic response guide portion 351 of the 1st baffler 350 of flowing through, simultaneously, the machine oil in the refrigerant obtains separating.Afterwards, the refrigerant that flows through sympathetic response guide portion 351 is in the process that moves to discharge guide portion 352, machine oil (solid arrow) separates with refrigerant (dotted arrow), the inner space that the refrigerant after the separated oil is arranged to housing 100 by the tap hole 353 that is formed on the discharge guide portion 352.(content of increase) because tap hole 353 is formed at discharges on the guide portion 352, thus can the row of making to refrigerant fully circulation in the sympathetic response space of baffler, thereby can effectively separate machine oil in the refrigerant.
Though in the foregoing description, the oil leakage preventer of closed-type compressor of the present invention has the structure that suction pipe directly is connected with the 1st suction port, but according to circumstances, suction pipe directly is connected on the 2nd suction port, and the path that connects the 1st suction port is set on the 2nd suction port.
In addition, the present invention can also be applicable to the single entry rotary compressor with a cylinder except applicable to the complex rotary compressor with a plurality of cylinders.
Claims (6)
1. the oil leakage preventer of a closed-type compressor comprises: be arranged in the inner space of closed shell, have a cylinder of cylindrical shape compression volume; Cover the both sides up and down of cylinder, be formed with the bearing and the outer side surface that is combined in bearing that make bearing hole that running shaft runs through and supporting rotating shaft at the center, reduce the baffler of the noise that produces when refrigerant is discharged, it is characterized in that: sympathetic response spatial communication and the discharge guide portion of extending vertically that described baffler comprises the sympathetic response guide portion, surround with the sympathetic response guide portion and be formed on the side face of discharging guide portion and with the more than one tap hole of enclosure interior spatial communication.
2. oil leakage preventer according to claim 1, it is characterized in that: around the bearing hole of described bearing, formed bearing portion outstandingly, the upper end of discharging guide portion curves inwardly towards bearing portion direction, is discharging the inboard oil separation space of separating refrigerant and machine oil that forms of guide portion.
3. oil leakage preventer according to claim 2 is characterized in that: the volume of oil separation space is less than the volume in sympathetic response space.
4. oil leakage preventer according to claim 1 is characterized in that: described tap hole forms equally spacedly along the side face of discharging guide portion.
5. oil leakage preventer according to claim 1 is characterized in that: described tap hole is formed on by on the discharge guide portion beyond two tangent axial section scopes of the outer circumferential face of the center of the 1st exhaust port of upper bearing and discharge guide portion.
6. oil leakage preventer according to claim 1 is characterized in that: the oil separation part part that is combined with separated oil when discharging refrigerant on described tap hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810152015A CN101713406A (en) | 2008-10-06 | 2008-10-06 | Oil leakage preventer of closed-type compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810152015A CN101713406A (en) | 2008-10-06 | 2008-10-06 | Oil leakage preventer of closed-type compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101713406A true CN101713406A (en) | 2010-05-26 |
Family
ID=42417311
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200810152015A Pending CN101713406A (en) | 2008-10-06 | 2008-10-06 | Oil leakage preventer of closed-type compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101713406A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103967799A (en) * | 2013-01-24 | 2014-08-06 | 珠海格力节能环保制冷技术研究中心有限公司 | Refrigerant compressor and method for reducing oil content in exhaust gas through refrigerant compressor |
| CN104153994A (en) * | 2014-09-03 | 2014-11-19 | 武汉凌达压缩机有限公司 | Compressor exhaust device and compressor with same |
| CN104334884A (en) * | 2012-04-19 | 2015-02-04 | 三菱电机株式会社 | Hermetically sealed compressor and vapor compression refrigeration cycle device with hermetically sealed compressor |
| CN104692626A (en) * | 2013-12-04 | 2015-06-10 | 保特罗股份公司 | Actuating assembly for moving operative member of glassware forming machine |
| CN104692625A (en) * | 2013-12-04 | 2015-06-10 | 保特罗股份公司 | Actuating assembly for moving an operative member of a glassware forming machine |
-
2008
- 2008-10-06 CN CN200810152015A patent/CN101713406A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104334884A (en) * | 2012-04-19 | 2015-02-04 | 三菱电机株式会社 | Hermetically sealed compressor and vapor compression refrigeration cycle device with hermetically sealed compressor |
| CN103967799A (en) * | 2013-01-24 | 2014-08-06 | 珠海格力节能环保制冷技术研究中心有限公司 | Refrigerant compressor and method for reducing oil content in exhaust gas through refrigerant compressor |
| CN104692626A (en) * | 2013-12-04 | 2015-06-10 | 保特罗股份公司 | Actuating assembly for moving operative member of glassware forming machine |
| CN104692625A (en) * | 2013-12-04 | 2015-06-10 | 保特罗股份公司 | Actuating assembly for moving an operative member of a glassware forming machine |
| CN104692626B (en) * | 2013-12-04 | 2018-10-16 | 保特罗股份公司 | The actuating assembly of operating member for movable glass vessel molding machine |
| CN104692625B (en) * | 2013-12-04 | 2019-02-01 | 保特罗股份公司 | The actuating assembly of operating member for movable glass vessel molding machine |
| CN104153994A (en) * | 2014-09-03 | 2014-11-19 | 武汉凌达压缩机有限公司 | Compressor exhaust device and compressor with same |
| CN104153994B (en) * | 2014-09-03 | 2016-08-24 | 武汉凌达压缩机有限公司 | Compressor air exhausting unit and there is its 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 |
Open date: 20100526 |