CN101994680B - Compressor isolating motor stator from pump body - Google Patents
Compressor isolating motor stator from pump body Download PDFInfo
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- CN101994680B CN101994680B CN200910194572.7A CN200910194572A CN101994680B CN 101994680 B CN101994680 B CN 101994680B CN 200910194572 A CN200910194572 A CN 200910194572A CN 101994680 B CN101994680 B CN 101994680B
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- compressor
- motor stator
- motor
- steel cylinders
- cavity
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Abstract
The invention relates to a compressor isolating a motor stator from a pump body, which comprises an air suction pipe, the pump body, the motor stator, a steel cylinder and a shell, wherein one end of the air suction pipe is connected with an air suction port at the lower end of a compressor body, and the other end of the air suction pipe is connected with a low-pressure cavity at the upper end of the compressor body; the pump body and a motor rotor are arranged in the steel cylinder; the motor stator is arranged between the steel cylinder and the shell, and is isolated from the motor rotor by the steel cylinder; air entering the compressor flows upwards from the lower end face of the motor stator, and reaches the cavity on the upper part of the motor stator through an iron core of the motor stator to cool a motor; and then a coolant enters a cylinder from the cavity on the upper part, and is compressed and exhausted out of the compressor. Compared with the prior art, the compressor can effectively reduce the coiling temperature of the motor, is applied to occasions of high-pressure ratios, overloads and high exhaust temperatures, and can save a reservoir of the compressor and reduce the cost.
Description
Technical field
The present invention relates to compressor, especially relate to a kind of compressor of motor stator and the pump housing being isolated.
Background technique
In existing hyperbaric chamber rotary compressor, gas enters cylinder by liquid-storage container, discharge after becoming high temperature and high pressure gas after compression in the cylinder, the gas coolant of High Temperature High Pressure is taken away by the heat of motor by motor, motor is in order to realize heat exchange with gas coolant, and the temperature of motor must higher than the temperature of refrigerant.Gas coolant temperature raises further, discharges enter air-conditioning system from outlet pipe.
Hyperbaric chamber rotary compressor adopts High Temperature High Pressure refrigerant cooling motor, R22 or R410A cold medium compressor motor temperature under declared working condition more than 100 DEG C, in excess load close to 130 DEG C, but the insulated paint of motor and insulating paper etc. are organic material, at high temperature often 8 DEG C of life-spans of rising reduce by half, and hyperbaric chamber structure is applied in reliability in high pressure ratio high exhaust temperature occasion and is faced with severe tests.
As shown in Figure 1, rotary compressor 1 is in order to prevent refrigerant liquid hammer, hyperbaric chamber structure is needed to be equipped with liquid-storage container 2 (gas-liquid separator) from the refrigerant that air-conditioning system refluxes, by liquid refrigerants Separate Storage in liquid-storage container, gaseous coolant enters cylinder compression, is indispensable parts for hyperbaric chamber rotary compressor reservoir.
Summary of the invention
Object of the present invention be exactly in order to overcome above-mentioned prior art exist defect and provide one can effectively reduce motor exhausting temperature, by compressor application in high pressure ratio, excess load high exhaust temperature occasion, and the compressor of motor stator and the pump housing being isolated that compressor liquid storage device reduces costs can be cancelled.
Object of the present invention can be achieved through the following technical solutions: a kind of compressor of motor stator and the pump housing being isolated, it is characterized in that, this compressor comprises sucking pipe, the pump housing, rotor, motor stator, steel cylinders and housing, described sucking pipe one end connects the intakeport of compressor main body lower end, the other end connects the low-pressure cavity of compressor main body upper end, the described pump housing and rotor are arranged in steel cylinders, described pole rotor is arranged between steel cylinders and housing, by steel cylinders, motor stator and rotor are isolated, compressor air inlet is from motor stator lower end surface, flow upwards through motor stator core to motor stator upper cavity, motor is cooled in the process, then refrigerant discharges compressor after upper cavity enters cylinder compression.
Described steel cylinders is inverted U, and the lower cover of this steel cylinders and compressor main body is tightly connected, and forms hyperbaric chamber.
The housing on described steel cylinders and compressor main body top forms low-pressure cavity.
Described electrode stator lower cavity is carried out oil return with intakeport by capillary tube and is connected.
Compared with prior art, the present invention solves the motor temperature too high problem of rotary compressor under high pressure ratio, excess load high exhaust temperature occasion, adopt a kind of compressor of motor stator and the pump housing being isolated, and eliminate compressor liquid storage device, reduce compressor installing space and by lower part cost.
Accompanying drawing explanation
Fig. 1 is the structural representation of existing hyperbaric chamber rotary compressor;
Fig. 2 is the structural representation of compressor of the present invention.
In figure: 1-compressor main body, 2-liquid-storage container, 3-sucking pipe, 4-rotor, 5-motor stator, 6-steel cylinders, 7-housing, 8-oil return capillary tube, 9-low-pressure cavity, 10-hyperbaric chamber, 11-suction tude, 12-outlet pipe.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described in detail.
Embodiment 1
As shown in Figure 2, a kind of compressor that motor stator and the pump housing are isolated, this compressor comprises compressor main body 1, sucking pipe 3, the pump housing, rotor 4, motor stator 5, steel cylinders 6 and housing 7, described sucking pipe 3 one end connects the intakeport of compressor main body 1 lower end, the low-pressure cavity 9 of the other end connection compressor main body 1 upper end, the described pump housing and rotor 4 are arranged in steel cylinders 6, and described electrode stator 5 is arranged between steel cylinders 6 and housing 7.Steel cylinders 6 is in inverted U, isolated by steel cylinders 6 between rotor 4 and motor stator 5, steel cylinders 4 forms low-pressure cavity 9 with the housing on compressor main body 1 top, steel cylinders 6 is tightly connected with the lower cover of compressor main body 1, form airtight hyperbaric chamber 10, described electrode stator 5 lower cavity and intakeport carry out oil return by capillary tube 8.
Compressor air inlet enters from suction port 11, then from motor stator 5 lower end surface, flow upwards through motor stator 5 iron core to motor stator 5 upper cavity, motor is cooled in the process, and then refrigerant discharges compressor from outlet pipe 12 after upper cavity enters cylinder compression.
This structure ensures the hyperbaric chamber running environment of the pump housing, identical with the stressed of hyperbaric chamber and lubricating condition, there is not the problem that insufficient lubrication causes; Motor is in low-pressure cavity environment simultaneously, uses the refrigerant of low temperature to cool, even if motor temperature still can ensure under the bad working environments such as excess load, high pressure ratio.
Motor stator about 5 has larger cavity volume, can play the effect of liquid-storage container, and refrigerant can further improve anti-liquid hammer ability through motor heating, the compressor external liquid-storage container simultaneously cancelled, and reduces installing space and reduces departmental cost.
Steel cylinders 5 between rotor 4 and motor stator 5 has paramagnetism, can strengthen the air-gap flux between rotor, is expanded by air gap and reduces the impact of compressor efficiency.
Claims (3)
1. the compressor that motor stator and the pump housing are isolated, it is characterized in that, this compressor comprises sucking pipe, the pump housing, rotor, motor stator, steel cylinders and housing, described sucking pipe one end connects the intakeport of compressor main body lower end, the other end connects the low-pressure cavity of compressor main body upper end, the described pump housing and rotor are arranged in steel cylinders, described motor stator is arranged between steel cylinders and housing, by steel cylinders, motor stator and rotor are isolated, compressor air inlet is from motor stator lower end surface, flow upwards through motor stator core to motor stator upper cavity, motor is cooled in the process, then refrigerant discharges compressor after upper cavity enters cylinder compression,
Described steel cylinders is inverted U, and the lower cover of this steel cylinders and compressor main body is tightly connected, and forms hyperbaric chamber.
2. a kind of compressor of motor stator and the pump housing being isolated according to claim 1, it is characterized in that, the housing on described steel cylinders and compressor main body top forms low-pressure cavity.
3. a kind of compressor of motor stator and the pump housing being isolated according to claim 1, is characterized in that, described motor stator lower cavity is carried out oil return with intakeport by capillary tube and is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910194572.7A CN101994680B (en) | 2009-08-25 | 2009-08-25 | Compressor isolating motor stator from pump body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910194572.7A CN101994680B (en) | 2009-08-25 | 2009-08-25 | Compressor isolating motor stator from pump body |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101994680A CN101994680A (en) | 2011-03-30 |
| CN101994680B true CN101994680B (en) | 2015-03-04 |
Family
ID=43785283
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910194572.7A Active CN101994680B (en) | 2009-08-25 | 2009-08-25 | Compressor isolating motor stator from pump body |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101994680B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104235024A (en) * | 2014-09-12 | 2014-12-24 | 大连三洋压缩机有限公司 | Vertical compressor with double exhaust pipes |
| CN108168164B (en) * | 2018-02-13 | 2024-02-20 | 天津商业大学 | Gas-liquid separation oil return equipment of ammonia refrigeration system |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4234293A (en) * | 1979-03-27 | 1980-11-18 | Dresser Industries, Inc. | Axial balancing system for motor driven pumps |
| US4332144A (en) * | 1981-03-26 | 1982-06-01 | Shaw David N | Bottoming cycle refrigerant scavenging for positive displacement compressor, refrigeration and heat pump systems |
| US4743176A (en) * | 1986-06-18 | 1988-05-10 | Tecumseh Products Company | Gas flow system for a compressor |
| JPS63227980A (en) * | 1987-03-16 | 1988-09-22 | Toshiba Corp | Pump |
| US5009578A (en) * | 1987-10-27 | 1991-04-23 | Crane Co. | Motor driven pumps |
| US5129795A (en) * | 1991-05-31 | 1992-07-14 | Powerdyne Corporation | Motor driven pump |
| CN1077253A (en) * | 1992-04-08 | 1993-10-13 | 陈启星 | Enclosed compressor with spacing layer |
| US7311501B2 (en) * | 2003-02-27 | 2007-12-25 | American Standard International Inc. | Scroll compressor with bifurcated flow pattern |
-
2009
- 2009-08-25 CN CN200910194572.7A patent/CN101994680B/en active Active
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| Publication number | Publication date |
|---|---|
| CN101994680A (en) | 2011-03-30 |
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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 | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 201206 Shanghai China (Shanghai) free trade test area, Yun Qiao Road No. 1051 Patentee after: Shanghai Haili Electrical Appliance Co. Ltd. Address before: 201206 Jinqiao Road, Pudong Jinqiao Export Processing Zone, Shanghai, 1051 Patentee before: Rili Electric Appliance Co., Ltd., Shanghai |