CN201786660U - Rotary compressor - Google Patents
Rotary compressor Download PDFInfo
- Publication number
- CN201786660U CN201786660U CN 201020556788 CN201020556788U CN201786660U CN 201786660 U CN201786660 U CN 201786660U CN 201020556788 CN201020556788 CN 201020556788 CN 201020556788 U CN201020556788 U CN 201020556788U CN 201786660 U CN201786660 U CN 201786660U
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- China
- Prior art keywords
- supplementary bearing
- fuel feeding
- cylinder
- feeding cover
- rotary compressor
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- 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.)
- Expired - Lifetime
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Abstract
A rotary compressor comprises a motor member and a compressing member which are arranged in a sealed housing; the compressing member comprises a cylinder, a main bearing and a supplementary bearing which are respectively arranged on two sides of the cylinder, a crankshaft connected with a rotor, a piston sleeved on an eccentric shaft of the crankshaft inside the cylinder and a slide plate received in a slide plate groove of the cylinder; the front end of the slide plate is abutted against an outer circle of the piston; the inner space of the sealed housing is divided into a high pressure chamber on top and a low pressure chamber on bottom by dividing members; an exhaust valve and an exhaust muffler are disposed on the supplementary bearing; the exhaust valve is located in the exhaust muffler; an oil supply cover is disposed on the end portion of the supplementary bearing; a diversion chamber is enclosed by the oil supply cover, the supplementary bearing and the crankshaft; an assembly step for permitting the oil supply cover to install is arranged on the end portion of the supplementary bearing; a difference of the middle diameter of the supplementary bearing and the diameter of the assembly step is greater or equal to 1.2 times of the thickness of the oil supply cover. The utility model has characteristics of flexible operation, stable performance, firm sealing and wide application range.
Description
Technical field
The utility model relates to a kind of rotary compressor.
Background technique
The R22 refrigeration agent is classified as the refrigeration agent that time limit is progressively eliminated by " Montreal is agreed " book.Europe, Japan begin to turn to the R410A refrigeration agent to substitute already, and the U.S. also will forbid that in 2010 R22 uses in new refrigeration product.China has also accelerated the paces that R22 eliminates, and will be frozen in the average level in 2009～2010 years in 2013, will reach 10% the requirement of cutting down baseline values in 2015.And more domestic main brands also begin to release the environment-friendly air conditioner of R410A as refrigeration agent.Yet the GWP value of R410A is also bigger than R22, and " Kyoto Protocol " classified R410A as the greenhouse gases of controlled discharge, and all R410A never are long-range replacement schemes.
As HCFC (as R22), the alternative refrigerant of HFC (as R410A, R407C)), existing carbon-hydrogen refrigerant industry is the most paid close attention to.But when carbon-hydrogen refrigerant is used for air-conditioner system, a very important problem being arranged, is exactly that it has high combustibility, must limit the refrigeration agent enclosed volume of hydrocarbon air-conditioner system.So be necessary to reduce significantly the amount of refrigerant in the compressor housing, thereby make that the refrigeration agent enclosed volume of air conditioner machine system is also reduced.
The structure that compressor inside is arranged to have than the hyperbaric chamber in the low-pressure cavity of large space and less space can reduce the amount of refrigerant of compressor inside preferably.Yet, in the inner space is in the compressor of high low pressure structure, because central hole of the crankshaft fuel feeding road is a low pressure, promptly the fuel feeding diversion cavity that is surrounded by supplementary bearing end and fuel feeding cover is a low pressure, and fuel feeding cover outside is the exhaust cavity of muffler inside, be hyperbaric environment, and the leakage of high low pressure will cause the fuel feeding difficulty, and the installation reliability of fuel feeding cover and stability have determined the sealability of diversion cavity and exhaust cavity.
The model utility content
The purpose of this utility model aims to provide a kind of simple and reasonable, flexible operation, stable performance, sealing rotary compressor firm, applied widely, to overcome deficiency of the prior art.
A kind of rotary compressor by this purpose design, comprise the electric machine assembly and the compression assembly that are arranged in the seal casinghousing, electric machine assembly is arranged on the below of compression assembly, electric machine assembly comprises rotor and stator, compression assembly comprises cylinder, be separately positioned on the main bearing and the supplementary bearing of cylinder both sides, the bent axle that joins with rotor, be positioned at cylinder and be set in piston on the eccentric shaft of bent axle, be accommodated in the slide plate in the cylinder vane slot, the front end of slide plate is resisted against on the cylindrical of piston, the inner space of seal casinghousing is superposed hyperbaric chamber and the low-pressure cavity that is positioned at the bottom by channels separated, supplementary bearing is provided with outlet valve and muffler, outlet valve is positioned at muffler, the end of supplementary bearing is provided with the fuel feeding cover, this fuel feeding cover and supplementary bearing, bent axle surrounds diversion cavity jointly, its structure characteristic is that the end of supplementary bearing is provided with the assembling step that is used to install the fuel feeding cover, 1.2 times of poor 〉=fuel feeding cover thickness of the middle part diameter of supplementary bearing and the diameter of assembling step.
The top of described fuel feeding cover and the internal surface of muffler are interference fit.Magnitude of interference is 0.02～0.5mm.
Described divider is described main bearing.
A kind of rotary compressor, comprise the electric machine assembly and the compression assembly that are arranged in the seal casinghousing, electric machine assembly is arranged on the top of compression assembly, electric machine assembly comprises rotor and stator, compression assembly comprises cylinder, be separately positioned on the main bearing and the supplementary bearing of cylinder both sides, the bent axle that joins with rotor, be positioned at cylinder and be set in piston on the eccentric shaft of bent axle, be accommodated in the slide plate in the cylinder vane slot, the front end of slide plate is resisted against on the cylindrical of piston, the inner space of seal casinghousing is hyperbaric chamber and the superposed low-pressure cavity that is positioned at the bottom by channels separated, supplementary bearing is provided with outlet valve and muffler, outlet valve is positioned at muffler, the end of supplementary bearing is provided with the fuel feeding cover, this fuel feeding cover and supplementary bearing, bent axle surrounds diversion cavity jointly, its structure characteristic is that the end of supplementary bearing is provided with the assembling step that is used to install the fuel feeding cover, 1.2 times of poor 〉=fuel feeding cover thickness of the middle part diameter of supplementary bearing and the diameter of assembling step.
The top of described fuel feeding cover and the internal surface of muffler are interference fit.Magnitude of interference is 0.02～0.5mm.
Described divider is described supplementary bearing.
The utility model is provided with the assembling step that is used to install the fuel feeding cover by the end at supplementary bearing, 1.2 times of poor 〉=fuel feeding cover thickness of the middle part diameter of supplementary bearing and the diameter of assembling step, and interference is carried out with the internal surface of muffler in the top of fuel feeding cover be connected, thereby have simple and reasonable, flexible operation, stable performance, sealing is firm and advantage of wide range of application.
Description of drawings
Fig. 1 is the utility model first embodiment's a sectional structure schematic representation.
Fig. 2 is the utility model second embodiment's a sectional structure schematic representation.
Among the figure: 1 is hyperbaric chamber, and 2 is low-pressure cavity, and 3 is supplementary bearing, and 4 is bent axle, and 5 is the fuel feeding cover, and 6 is muffler, and 7 is cylinder, and 8 is piston, and 9 is slide plate, and 10 is seal casinghousing, and 11 is rotor, and 12 is stator, and 13 is main bearing, and 30 is fuel supply line.
Embodiment
Below in conjunction with drawings and Examples the utility model is further described.
First embodiment
Referring to Fig. 1, this rotary compressor, comprise the electric machine assembly and the compression assembly that are arranged in the seal casinghousing 10, electric machine assembly is arranged on the below of compression assembly, electric machine assembly comprises rotor 11 and stator 12, the bent axle 4 that compression assembly comprises cylinder 7, be separately positioned on the main bearing 13 of cylinder 7 both sides and supplementary bearing 3, join with rotor 11, be positioned at cylinder 7 and be set in piston 8 on the eccentric shaft of bent axle 4, be accommodated in the slide plate 9 of cylinder vane slot, the front end of slide plate 9 is resisted against on the cylindrical of piston 8, and bearing 13 and supplementary bearing 3 are used to support bent axle 4.
The inner space of seal casinghousing 10 is superposed hyperbaric chamber 1 and the low-pressure cavity 2 that is positioned at the bottom by channels separated.Supplementary bearing 3 is provided with outlet valve and muffler 6, outlet valve is positioned at muffler 6, the end of supplementary bearing 3 is provided with fuel feeding cover 5, this fuel feeding cover 5 surrounds diversion cavity jointly with supplementary bearing 3, bent axle 4, the end of supplementary bearing 3 is provided with the assembling step that is used to install fuel feeding cover 5,1.2 times of thickness d 1 of the middle part diameter D1 of supplementary bearing 3 and poor 〉=fuel feeding cover 5 of the diameter D2 of assembling step.The internal surface of the top of fuel feeding cover 5 and muffler 6 is an interference fit.This magnitude of interference is 0.02～0.5mm.By the pressuring action of interference fit, guaranteed the reliability that fuel feeding cover 5 is connected with the installation of supplementary bearing 3.
The bottom oil sump of rotary compressor is in the low-pressure cavity of pressure of inspiration(Pi), is positioned at the oilhole of bent axle 4 and the low pressure that the fuel feeding path is pressure of inspiration(Pi).Supplementary bearing and be arranged in the supplementary bearing end and the fuel feeding cover surrounds and diversion cavity is positioned at the hyperbaric chamber of muffler inside.
The fuel feeding road of rotary compressor is by the pump oil in the oil sump of seal casinghousing 10 bottoms of the oilhole in the bent axle 4, and oil is transported in the diversion cavity, gets back in the oil sump of bottom by the scavenge oil road again.The inside of fuel feeding cover, i.e. diversion cavity, connection be the low pressure that is positioned at the bottom, and the outside of fuel feeding cover 5 is the inside of muffler, i.e. hyperbaric chamber.Described divider in the present embodiment is described main bearing 13.
Second embodiment
Referring to Fig. 2, rotary compressor, comprise the electric machine assembly and the compression assembly that are arranged in the seal casinghousing 10, electric machine assembly is arranged on the top of compression assembly, electric machine assembly comprises rotor 11 and stator 12, compression assembly comprises cylinder 7, be separately positioned on the main bearing 13 and the supplementary bearing 3 of cylinder 7 both sides, the bent axle 4 that joins with rotor 11, be positioned at cylinder 7 and be set in piston 8 on the eccentric shaft of bent axle 4, be accommodated in the slide plate 9 in the cylinder vane slot, the front end of slide plate 9 is resisted against on the cylindrical of piston 8, the inner space of seal casinghousing 10 is hyperbaric chamber 1 and the superposed low-pressure cavity 2 that is positioned at the bottom by channels separated, supplementary bearing 3 is provided with outlet valve and muffler 6, outlet valve is positioned at muffler 6, the end of supplementary bearing 3 is provided with fuel feeding cover 5, this fuel feeding cover 5 and supplementary bearing 3, bent axle 4 surrounds diversion cavity jointly, the end of supplementary bearing 3 is provided with the assembling step that is used to install fuel feeding cover 5,1.2 times of thickness d 1 of the middle part diameter D1 of supplementary bearing 3 and poor 〉=fuel feeding cover 5 of the diameter D2 of assembling step.The internal surface of the top of fuel feeding cover 5 and muffler 6 is an interference fit.This magnitude of interference is 0.02～0.5mm.By the pressuring action of interference fit, guaranteed the reliability that fuel feeding cover 5 is connected with the installation of supplementary bearing 3.
Present embodiment is provided with oil sump in the bottom of low-pressure cavity 2, during fuel feeding, from the oil sump that is arranged in low-pressure cavity 2 lubricant oil is imported diversion cavity by fuel supply line 30, center oilhole by being positioned at bent axle 4 and pump oil mechanism supplies with moving element with lubricant oil and realizes lubricated again.Fuel feeding cover 5 inside, i.e. diversion cavity, connection be superposed low pressure, and the outside of fuel feeding cover 5 is muffler inside, just hyperbaric chamber.Described divider in the present embodiment is described supplementary bearing 3.
All the other are not stated part and see first embodiment, no longer repeat.
Claims (8)
1. rotary compressor, comprise the electric machine assembly and the compression assembly that are arranged in the seal casinghousing (10), electric machine assembly is arranged on the below of compression assembly, electric machine assembly comprises rotor (11) and stator (12), compression assembly comprises cylinder (7), be separately positioned on the main bearing (13) and the supplementary bearing (3) of cylinder (7) both sides, the bent axle (4) that joins with rotor (11), be positioned at cylinder (7) and be set in piston (8) on the eccentric shaft of bent axle (4), be accommodated in the slide plate (9) in the cylinder vane slot, the front end of slide plate (9) is resisted against on the cylindrical of piston (8), the inner space of seal casinghousing (10) is superposed hyperbaric chamber (1) and the low-pressure cavity (2) that is positioned at the bottom by channels separated, supplementary bearing (3) is provided with outlet valve and muffler (6), outlet valve is positioned at muffler (6), the end of supplementary bearing (3) is provided with fuel feeding cover (5), this fuel feeding cover (5) and supplementary bearing (3), bent axle (4) surrounds diversion cavity jointly, the end that it is characterized in that supplementary bearing (3) is provided with the assembling step that is used to install fuel feeding cover (5), 1.2 times of poor 〉=fuel feeding cover (5) thickness (d1) of the middle part diameter (D1) of supplementary bearing (3) and the diameter (D2) of assembling step.
2. rotary compressor according to claim 1 is characterized in that the top of described fuel feeding cover (5) and the internal surface of muffler (6) are interference fit.
3. rotary compressor according to claim 2 is characterized in that described magnitude of interference is 0.02～0.5mm.
4. according to the arbitrary described rotary compressor of claim 1 to 3, it is characterized in that described divider is described main bearing (13).
5. rotary compressor, comprise the electric machine assembly and the compression assembly that are arranged in the seal casinghousing (10), electric machine assembly is arranged on the top of compression assembly, electric machine assembly comprises rotor (11) and stator (12), compression assembly comprises cylinder (7), be separately positioned on the main bearing (13) and the supplementary bearing (3) of cylinder (7) both sides, the bent axle (4) that joins with rotor (11), be positioned at cylinder (7) and be set in piston (8) on the eccentric shaft of bent axle (4), be accommodated in the slide plate (9) in the cylinder vane slot, the front end of slide plate (9) is resisted against on the cylindrical of piston (8), the inner space of seal casinghousing (10) is hyperbaric chamber (1) and the superposed low-pressure cavity (2) that is positioned at the bottom by channels separated, supplementary bearing (3) is provided with outlet valve and muffler (6), outlet valve is positioned at muffler (6), the end of supplementary bearing (3) is provided with fuel feeding cover (5), this fuel feeding cover (5) and supplementary bearing (3), bent axle (4) surrounds diversion cavity jointly, the end that it is characterized in that supplementary bearing (3) is provided with the assembling step that is used to install fuel feeding cover (5), 1.2 times of poor 〉=fuel feeding cover (5) thickness (d1) of the middle part diameter (D1) of supplementary bearing (3) and the diameter (D2) of assembling step.
6. rotary compressor according to claim 5 is characterized in that the top of described fuel feeding cover (5) and the internal surface of muffler (6) are interference fit.
7. rotary compressor according to claim 6 is characterized in that described magnitude of interference is 0.02～0.5mm.
8. according to the arbitrary described rotary compressor of claim 5 to 7, it is characterized in that described divider is described supplementary bearing (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020556788 CN201786660U (en) | 2010-09-30 | 2010-09-30 | Rotary compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020556788 CN201786660U (en) | 2010-09-30 | 2010-09-30 | Rotary compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201786660U true CN201786660U (en) | 2011-04-06 |
Family
ID=43818625
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201020556788 Expired - Lifetime CN201786660U (en) | 2010-09-30 | 2010-09-30 | Rotary compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201786660U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102734169A (en) * | 2011-04-12 | 2012-10-17 | 广东美芝制冷设备有限公司 | Oil surface lifting device of rotary compressor |
| CN103727032A (en) * | 2013-12-16 | 2014-04-16 | 西安交通大学 | Low-back-pressure non-lubricating-oil rolling piston type refrigeration compressor |
| CN103939343A (en) * | 2014-04-01 | 2014-07-23 | 西安交通大学 | Rolling piston refrigeration compressor with low backpressure |
| CN105805013A (en) * | 2016-03-10 | 2016-07-27 | 广东美芝制冷设备有限公司 | Rotary compressor |
| CN110905770A (en) * | 2018-09-18 | 2020-03-24 | Lg电子株式会社 | Compressor with a compressor housing having a plurality of compressor blades |
| CN113250959A (en) * | 2020-02-13 | 2021-08-13 | 安徽美芝精密制造有限公司 | Compressor and refrigeration equipment |
-
2010
- 2010-09-30 CN CN 201020556788 patent/CN201786660U/en not_active Expired - Lifetime
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102734169A (en) * | 2011-04-12 | 2012-10-17 | 广东美芝制冷设备有限公司 | Oil surface lifting device of rotary compressor |
| CN103727032A (en) * | 2013-12-16 | 2014-04-16 | 西安交通大学 | Low-back-pressure non-lubricating-oil rolling piston type refrigeration compressor |
| CN103727032B (en) * | 2013-12-16 | 2017-02-15 | 西安交通大学 | Low-back-pressure non-lubricating-oil rolling piston type refrigeration compressor |
| CN103939343A (en) * | 2014-04-01 | 2014-07-23 | 西安交通大学 | Rolling piston refrigeration compressor with low backpressure |
| CN105805013A (en) * | 2016-03-10 | 2016-07-27 | 广东美芝制冷设备有限公司 | Rotary compressor |
| CN110905770A (en) * | 2018-09-18 | 2020-03-24 | Lg电子株式会社 | Compressor with a compressor housing having a plurality of compressor blades |
| CN110905770B (en) * | 2018-09-18 | 2021-12-07 | Lg电子株式会社 | Compressor |
| US11434888B2 (en) | 2018-09-18 | 2022-09-06 | Lg Electronics Inc. | Compressor having oil guide path |
| CN113250959A (en) * | 2020-02-13 | 2021-08-13 | 安徽美芝精密制造有限公司 | Compressor and refrigeration equipment |
| CN113250959B (en) * | 2020-02-13 | 2023-04-18 | 安徽美芝精密制造有限公司 | Compressor and refrigeration equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110406 |
|
| CX01 | Expiry of patent term |