CN201714676U - Air exhausting device of rotary compressor - Google Patents
Air exhausting device of rotary compressor Download PDFInfo
- Publication number
- CN201714676U CN201714676U CN 201020224576 CN201020224576U CN201714676U CN 201714676 U CN201714676 U CN 201714676U CN 201020224576 CN201020224576 CN 201020224576 CN 201020224576 U CN201020224576 U CN 201020224576U CN 201714676 U CN201714676 U CN 201714676U
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- hole
- diameter
- macropore
- spue
- main bearing
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Abstract
The utility model relates to an air exhausting device of a rotary compressor, comprising a compression assembly and a motor, wherein the compression assembly is arranged in a sealed shell and comprises a main bearing and an auxiliary bearing which are arranged at two sides of an air cylinder; the main bearing is provided with a first discharge hole and a main bearing air exhaust valve plate, and/or the auxiliary bearing is provided with a second discharge hole and an auxiliary bearing air exhaust valve plate; the first discharge hole has a stepped structure and comprises one large hole with diameter D1 and more than one small hole with diameter D2, which are communicated from front to back, wherein the diameter D2 is larger than the diameter D1; the large hole is positioned at the front part of the first discharge hole and attracted to the main bearing air exhaust valve plate; the small holes are positioned at the rear part of the first discharge hole; and steps are arranged between the large hole and the small holes. In the utility model, on the basis of reducing air exhaust resistance, the sealing width is ensured, thus finally improving the working efficiency of the compressor and improving the energy efficiency of the compressor; and the air exhausting device has the characteristics of low manufacture cost, high energy efficiency ratio and wide application range.
Description
Technical field
The utility model relates to the venting gas appliance of a kind of rotary compressor, particularly a kind of rotary compressor.
Background technique
Rotary compressor is widely used in various refrigerators, air-conditioning, heat pump water heater etc., and the rotary compressor major function is to suck low pressure refrigerant, it is compressed to high temperature and high pressure gas, and then is discharged in the work system of refrigerant.
Referring to Fig. 1 and Fig. 2, Fig. 1 is the longitudinal sectional view of existing rotary compressor, as shown in Figure 1, existing rotary compressor comprises: have certain internal capacity housing 1, be fixed on the inner motor that produces driving force of housing 1, compressor pump body that can compression refrigerant under the effect of the driving force of motor, motor comprises: be fixed on the housing 1 stator 2 and in stator 2 inner rotor rotated 3.The compressor pump body comprises: the supplementary bearing 7 of cylinder 6, the main bearing 5 on top that is separately positioned on cylinder 6 and bottom, that join and be provided with the bent axle 4 of eccentric shaft with rotor 3, taken in and be connected the piston 8 that can rotate freely with bent axle, its front end is crimped on the slide plate 12 on piston 8 cylindricals, sees Fig. 2.Gas coolant enters in the air aspiration cavity of cylinder 6 by sucking pipe 10, acting in conjunction by crankshaft and piston and slide plate, rotation gas is compressed in cylinder, discharged by being arranged on first of the main bearing hole 5a that spues by inblock cylinder autogenous cutting mouth by the gas of compressor, enter the silencing cavity between main bearing and the baffler 9 then, discharge by baffler exhaust port 9a again.
Fig. 2 is that Y-Y among Fig. 1 is to sectional view, piston 8 rotates in cylinder together with bent axle 4, cold media air sucks in cylinder, discharges after overcompression, when piston 8 forwards to as shown in Figure 2, this moment, the spue relief opening external diameter of hole 5a of first on the main bearing 5 was minimum with the width between piston 8 internal diameters, first width that spues hole 5a and piston 8 inner radius is referred to as sealed width t, and when sealed width t requirement 〉=0.5mm, could guarantee to discharge gas can not be to the piston internal leakage.If sealed width 0≤t＜during 0.5mm, discharging gas just may be to piston 8 internal leakage, thereby causes compressor operating efficient seriously to descend, and can make the compressor performance instability.As for sealed width t＜0 o'clock, first relief opening that spues hole 5a connects with internal piston.
In the prior art, in order to pursue high energy efficiency, often many employings increase first relief opening external diameter or the increase piston inner diameter that spues the hole and reduce rubbing surface, still, therefore the sealed width t of this moment 〉=just can't be guaranteed in 0.5mm just can't really realize high efficiency.
The model utility content
The purpose of this utility model aims to provide the venting gas appliance of a kind of simple and reasonable, flexible operation, fabricating cost is low, Energy Efficiency Ratio is high, applied widely rotary compressor, to overcome deficiency of the prior art.
Press the venting gas appliance of a kind of rotary compressor of this purpose design, comprise the compression assembly and the motor that are arranged in the seal casinghousing, compression assembly comprises main bearing and the supplementary bearing that is arranged on the cylinder bi-side; Main bearing is provided with first spue hole and the main bearing exhaust valve plate, and/or, supplementary bearing is provided with second spue hole and the supplementary bearing exhaust valve plate, its structure characteristic is that first hole that spues is a staircase structural model, this first macropore and aperture that above diameter is D1 that a diameter that the hole communicates before and after comprising is D2 that spue, wherein, diameter D2＞diameter D1, macropore is positioned at first spue the anterior of hole and press close to main bearing exhaust valve plate place, aperture is positioned at first rear portion that spues the hole, is provided with step between all apertures and the macropore;
And/or, second hole that spues is a staircase structural model, this second macropore and aperture that above diameter is D1 that a diameter that the hole communicates before and after comprising is D2 that spue, wherein, diameter D2＞diameter D1, macropore is positioned at second spue the anterior of hole and press close to main bearing exhaust valve plate place, and aperture is positioned at second rear portion that spues the hole, is provided with step between all apertures and the macropore.
Described all apertures are all tangent and be provided with macropore is eccentric with the inwall of macropore.
Height h=0.5mm～the 1.5mm of described step.
A kind of venting gas appliance of rotary compressor, comprise the compression assembly and the motor that are arranged in the seal casinghousing, compression assembly comprises first cylinder, second cylinder and the central diaphragm that is used to separate first cylinder and second cylinder, and the side of first cylinder and second cylinder is respectively arranged with main bearing and supplementary bearing; Main bearing is provided with first spue hole and the main bearing exhaust valve plate, supplementary bearing is provided with second spue hole and the supplementary bearing exhaust valve plate, its structure characteristic is that first hole that spues is a staircase structural model, this first macropore and aperture that above diameter is D1 that a diameter that the hole communicates before and after comprising is D2 that spue, wherein, diameter D2＞diameter D1, macropore is positioned at first spue the anterior of hole and press close to main bearing exhaust valve plate place, aperture is positioned at first rear portion that spues the hole, is provided with step between all apertures and the macropore;
Second hole that spues is a staircase structural model, this second macropore and aperture that above diameter is D1 that a diameter that the hole communicates before and after comprising is D2 that spue, wherein, diameter D2＞diameter D1, macropore is positioned at second spue the anterior of hole and press close to supplementary bearing exhaust valve plate place, aperture is positioned at second rear portion that spues the hole, is provided with step between all apertures and the macropore.
Described all apertures are all tangent and be provided with macropore is eccentric with the inwall of macropore.
Height h=0.5mm～the 1.5mm of described step.
The utility model provides a kind of hole that spues that can increase relief opening, thereby can be on the basis that reduces exhaust resistance, guarantee sealed width t 〉=0.5mm, the final compressor operating efficient that promotes, improve the efficiency of compressor, it not only goes for the rotary compressor of single cylinder, also goes for the rotary compressor of twin-tub even multi-cylinder, and it has simple and reasonable, flexible operation, fabricating cost is low, Energy Efficiency Ratio is high and advantage of wide range of application.
Description of drawings
Fig. 1 is vertical sectional structure schematic representation of prior art.
Fig. 2 is that Y-Y among Fig. 1 is to the sectional structure schematic representation.
Fig. 3 is the utility model first embodiment's a broken section structure for amplifying schematic representation.
Fig. 4 spues the Z of hole 5a to structural representation for first among Fig. 3.
Fig. 5 is the area of overlap figure of macropore and aperture.
Fig. 6 is second embodiment's a broken section structure for amplifying schematic representation.
Fig. 7 is the 3rd embodiment's a broken section structure for amplifying schematic representation.
Fig. 8 is the 4th embodiment's a broken section structure for amplifying schematic representation.
Among the figure: 1 is housing, and 2 is stator, and 3 is rotor, and 4 is bent axle, 5 is main bearing, and 5a is first hole that spues, and 6 is cylinder, and 6a is an inblock cylinder autogenous cutting mouth, 7 is supplementary bearing, and 7a is second hole that spues, and 8 is piston, and 9 is baffler, 9a is the baffler exhaust port, and 10 is sucking pipe, and 11 is outlet pipe, 12 is slide plate, and 13 is the main bearing exhaust valve plate, and 14 is the supplementary bearing exhaust valve plate, 16 is first cylinder, and 20 is central diaphragm, and 26 is second cylinder.
Embodiment
Below in conjunction with drawings and Examples the utility model is further described.
First embodiment
Referring to Fig. 3, the rotary compressor of single cylinder comprises compression assembly and the motor that is arranged in the seal casinghousing, and compression assembly comprises main bearing 5 and the supplementary bearing 7 that is arranged on cylinder 6 bi-side; Main bearing 5 is provided with first spue hole 5a and the main bearing exhaust valve plate 13.The first hole 5a that spues is used to discharge the gas that is compressed by cylinder 6, this first hole 5a that spues is a staircase structural model, as shown in Figure 4, the macropore of first spues diameter that hole 5a communicates by front and back is D2 and diameter are that one or more apertures of D1 constitute jointly, wherein, diameter D1＜diameter D2, macropore is positioned at first spue the anterior of hole 5a and press close to main bearing exhaust valve plate 13 places, aperture is positioned at first rear portion that spues hole 5a, all apertures all with the inwall of macropore tangent and with macropore be the decentraction setting, just eccentric the setting.Here tangent is meant that along on the Z direction, the inwall of aperture and the inwall of macropore are tangent.
In addition, be provided with step between all apertures and the macropore, the height h=0.5mm～1.5mm of this step.
The utility model provides a kind of can increase first of the relief opening hole 5a that spues, see Fig. 5, non-circular actual exhaust air area H is the circular area F of the macropore of D1 much larger than diameter, makes the exhaust resistance of rotary compressor obtain effectively reducing, and exhaust is more smooth and easy.Simultaneously, the area F of macropore can guarantee the first sealed width t 〉=0.5mm that spues between hole 5a and the piston inner diameter again, thereby has reduced to discharge the amount of leakage of gas, finally promotes the working efficiency of rotary compressor.In addition, the utility model provides a kind of effective, simple processing method also from the angle of technology, greatly reduces the processing cost in the non-circular hole that spues.
Second embodiment
Referring to Fig. 6, the rotary compressor of single cylinder comprises compression assembly and the motor that is arranged in the seal casinghousing, and compression assembly comprises main bearing 5 and the supplementary bearing 7 that is arranged on cylinder 6 bi-side; Supplementary bearing 7 is provided with second spue hole 7a and the supplementary bearing exhaust valve plate 14.The second hole 7a that spues is used to discharge the gas that is compressed by cylinder 6, and this second hole 7a that spues is a staircase structural model.The macropore of second spues diameter that hole 7a communicates by front and back is D2 and diameter are that one or more apertures of D1 constitute jointly, wherein, and diameter D1＜diameter D2.Macropore is positioned at second spue the anterior of hole 7a and press close to main bearing exhaust valve plate 13 places, and aperture is positioned at second rear portion that spues hole 7a, is provided with step between all apertures and the macropore.Height h=0.5mm～the 1.5mm of step.All apertures are all tangent and be provided with macropore is eccentric with the inwall of macropore.All the other are not stated part and see first embodiment, no longer repeat.
The 3rd embodiment
Referring to Fig. 7, the rotary compressor of single cylinder comprises compression assembly and the motor that is arranged in the seal casinghousing, and compression assembly comprises main bearing 5 and the supplementary bearing 7 that is arranged on cylinder 6 bi-side; Main bearing 5 is provided with first spue hole 5a and the main bearing exhaust valve plate 13, and supplementary bearing 7 is provided with second spue hole 7a and the supplementary bearing exhaust valve plate 14.First hole 5a and the second hole 7a that spues that spues is respectively applied for the gas that discharge is compressed by cylinder 6, and wherein, first hole 5a and the second hole 7a that spues that spues is staircase structural model.All the other are not stated part and see second embodiment, no longer repeat.
The 4th embodiment
Referring to Fig. 8, the rotary compressor of twin-tub comprises compression assembly and the motor that is arranged in the seal casinghousing, compression assembly comprises first cylinder 16, second cylinder 26 and is used to separate central diaphragm 20, the first cylinders 16 of first cylinder 16 and second cylinder 26 and the side of second cylinder 26 is respectively arranged with main bearing 5 and supplementary bearing 7; Main bearing 5 is provided with first spue hole 5a and the main bearing exhaust valve plate 13, and supplementary bearing 7 is provided with second spue hole 7a and the supplementary bearing exhaust valve plate 14.First hole 5a and the second hole 7a that spues that spues is respectively staircase structural model.
All the other are not stated part and see first embodiment, no longer repeat.
Claims (6)
1. the venting gas appliance of a rotary compressor comprises the compression assembly and the motor that are arranged in the seal casinghousing (1), and compression assembly comprises main bearing (5) and the supplementary bearing (7) that is arranged on cylinder (6) bi-side; Main bearing (5) is provided with first spue hole (5a) and the main bearing exhaust valve plate (13), and/or, supplementary bearing (7) is provided with second spue hole (7a) and the supplementary bearing exhaust valve plate (14), it is characterized in that first spues hole (5a) for staircase structural model, this first macropore and aperture that above diameter is D1 that a diameter that hole (5a) communicates before and after comprising is D2 that spue, wherein, diameter D2＞diameter D1, macropore is positioned at first spue the anterior of hole (5a) and press close to main bearing exhaust valve plate (13) and locate, aperture is positioned at first rear portion that spues hole (5a), is provided with step between all apertures and the macropore;
And/or, second spues hole (7a) for staircase structural model, this second macropore and aperture that above diameter is D1 that a diameter that hole (7a) communicates before and after comprising is D2 that spue, wherein, diameter D2＞diameter D1, macropore is positioned at second spue the anterior of hole (7a) and press close to main bearing exhaust valve plate (13) and locate, and aperture is positioned at second rear portion that spues hole (7a), is provided with step between all apertures and the macropore.
2. the venting gas appliance of rotary compressor according to claim 1 is characterized in that described all apertures are all tangent and be provided with macropore is eccentric with the inwall of macropore.
3. the venting gas appliance of rotary compressor according to claim 1 and 2 is characterized in that the height h=0.5mm～1.5mm of described step.
4. the venting gas appliance of a rotary compressor, comprise the compression assembly and the motor that are arranged in the seal casinghousing (1), compression assembly comprises first cylinder (16), second cylinder (26) and the central diaphragm (20) that is used to separate first cylinder (16) and second cylinder (26), and the side of first cylinder (16) and second cylinder (26) is respectively arranged with main bearing (5) and supplementary bearing (7); Main bearing (5) is provided with first spue hole (5a) and the main bearing exhaust valve plate (13), supplementary bearing (7) is provided with second spue hole (7a) and the supplementary bearing exhaust valve plate (14), it is characterized in that first spues hole (5a) for staircase structural model, this first macropore and aperture that above diameter is D1 that a diameter that hole (5a) communicates before and after comprising is D2 that spue, wherein, diameter D2＞diameter D1, macropore is positioned at first spue the anterior of hole (5a) and press close to main bearing exhaust valve plate (13) and locate, aperture is positioned at first rear portion that spues hole (5a), is provided with step between all apertures and the macropore;
Second spues hole (7a) for staircase structural model, this second macropore and aperture that above diameter is D1 that a diameter that hole (7a) communicates before and after comprising is D2 that spue, wherein, diameter D2＞diameter D1, macropore is positioned at second spue the anterior of hole (7a) and press close to supplementary bearing exhaust valve plate (14) and locate, aperture is positioned at second rear portion that spues hole (7a), is provided with step between all apertures and the macropore.
5. the venting gas appliance of rotary compressor according to claim 4 is characterized in that described all apertures are all tangent and be provided with macropore is eccentric with the inwall of macropore.
6. according to the venting gas appliance of claim 4 or 5 described rotary compressors, it is characterized in that the height h=0.5mm～1.5mm of described step.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020224576 CN201714676U (en) | 2010-06-12 | 2010-06-12 | Air exhausting device of rotary compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020224576 CN201714676U (en) | 2010-06-12 | 2010-06-12 | Air exhausting device of rotary compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201714676U true CN201714676U (en) | 2011-01-19 |
Family
ID=43460672
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201020224576 Expired - Fee Related CN201714676U (en) | 2010-06-12 | 2010-06-12 | Air exhausting device of rotary compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201714676U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103671116A (en) * | 2012-09-25 | 2014-03-26 | 珠海格力节能环保制冷技术研究中心有限公司 | Two-stage enthalpy-increasing compressor |
| CN104110383A (en) * | 2014-07-04 | 2014-10-22 | 广东美芝制冷设备有限公司 | Rotary compressor |
| CN107355385A (en) * | 2017-08-31 | 2017-11-17 | 广东美芝制冷设备有限公司 | Double-exhaust compression assembly and rotary compressor |
-
2010
- 2010-06-12 CN CN 201020224576 patent/CN201714676U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103671116A (en) * | 2012-09-25 | 2014-03-26 | 珠海格力节能环保制冷技术研究中心有限公司 | Two-stage enthalpy-increasing compressor |
| CN104110383A (en) * | 2014-07-04 | 2014-10-22 | 广东美芝制冷设备有限公司 | Rotary compressor |
| CN107355385A (en) * | 2017-08-31 | 2017-11-17 | 广东美芝制冷设备有限公司 | Double-exhaust compression assembly and rotary compressor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110119 Termination date: 20190612 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |