CN101691863B - Consumption-reducing variable displacement rotary compressor - Google Patents
Consumption-reducing variable displacement rotary compressor Download PDFInfo
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- CN101691863B CN101691863B CN2009101784250A CN200910178425A CN101691863B CN 101691863 B CN101691863 B CN 101691863B CN 2009101784250 A CN2009101784250 A CN 2009101784250A CN 200910178425 A CN200910178425 A CN 200910178425A CN 101691863 B CN101691863 B CN 101691863B
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Abstract
The invention relates to the technical field of refrigeration compressors, in particular to a consumption-reducing variable displacement rotary compressor. The compressor is characterized in that a back flow port is communicated with a suction loop through a back flow channel, and back flow of gas inside a compression chamber can only be stopped when an eccentric rotor enters a back flow end angle Theta; a back flow pipeline is provided with a controllable flow stop valve; when environmental temperature to be adjusted reaches a set temperature range, a system opens the flow stop valve arranged on the back flow pipeline and reduces effective gas compression volume; according to the temperature of the system, the flow of the controllable flow stop valve is controlled and the flow of back flow gas inside the back flow pipeline is adjusted; therefore, reasonable effective gas compression volume can be controlled to maintain appropriate environmental temperature and reduce motor load and electricity consumption; and at the same time, start and stop times of the compressor are reduced, adjusted temperature is relatively stable, energy-saving effect is obvious and comfort is good.
Description
Technical field
The present invention relates to technical field of refrigeration compressors, relate in particular to a kind of consumption-reducing variable displacement rotary compressor.
Background technique
Compressor is that compression refrigerant makes it participate in the circuit nucleus equipment in refrigerator, the air-conditioning system; Rotary compressor is a kind of compressor commonly used; The rotary compressor rotary compressor generally comprises rotary compressor and waves compressor, and as shown in Figure 1, the slide plate 32 of rotary compressor is arranged on the cylinder wall separately; As shown in Figure 2, the slide plate 32 that waves compressor is to be arranged to one with eccentric rotor 31; The work of revolution compression refrigerant is in the sealing cylinder chamber of compressor, to accomplish; The housing assembly that constitutes the sealing cylinder chamber includes upper flange, lower flange and cylinder 3; Upper flange, lower flange are arranged on cylinder 3 two ends and enclose the sealing cylinder chamber; Be provided with eccentric rotor 31 in the cylinder chamber, under the tangent line effect cylinder chamber be divided into air aspiration cavity 33 and compression chamber 34 in the separation of slide plate 32 and eccentric rotor 31 mutually with cylinder 3 inwalls, air aspiration cavity 33 is the cavity that is communicated with the intakeport 35 of suction end; Driven by motor eccentric rotor 31 rotates a week; Through the intakeport of suction end air-breathing after, 34 li gases of compression chamber by low pressure to high pressure converted, when suitable high pressure, discharge cylinder chamber.
In the refrigerator that uses compressor, air-conditioning system; When the ambient temperature of needs adjusting reaches the range temperature of setting; Need keep under the situation of such temperature, at present routine has adopted two kinds of regulative modes: 1, stop compressor operating a period of time, when detecting ambient temperature and bigger difference occurs with setting temperature; System starts compressor once more, and compressor operating is also discharged pressurized gas and participated in the purpose that heat exchange reaches the adjusting temperature; The frequent so a large amount of electric energy of moment meeting loss, such regulative mode causes ambient temperature to follow the setting temperature difference variation big, and travelling comfort is poor; 2, adopt frequency conversion control technique, add frequency variator and regulate rotating speed of motor, under the situation that reaches ambient temperature, under the frequency variator effect; Motor speed reduces, and press cycles is elongated, and under the situation of compression, the pressurized gas discharge capacity reduces in the unit time so slowly; Just keep and reach the maintenance ambient temperature, the VFC comfort level is good, avoids frequent start and stop, and long-time running has certain energy-saving effect; But because the frequency variator cost is higher, price is more expensive, energy-saving effect is not clearly.
Summary of the invention
Of the present invention is to present rotary compressor excessive problem of holding temperature energy consumption in operational system, and a kind of variable working condition rotary compressor that overcomes the above problems is provided.
For reaching above purpose, adopt following technological scheme:
A kind of consumption-reducing variable displacement rotary compressor, the housing assembly of said rotary compressor includes upper flange, lower flange and cylinder, and upper flange, lower flange are arranged on the cylinder two ends and enclose the sealing cylinder chamber; The upper flange of said formation housing assembly or lower flange or cylinder are provided with the refluxing opening that is communicated in the cylinder chamber; The refluxing opening connection is provided with the return flow line on the housing assembly; The external port of return flow line connects a reflux line, and reflux line wore housing and was connected to the suction loop of compressor.
Wherein said reflux line is provided with stop valve.
Wherein said stop valve is the flow-controllable stop valve.
The entry end that wherein said reflux line is connected to the liquor separator of compressor gets into the suction loop.
The outlet end that wherein said reflux line is connected to the liquor separator of compressor gets into the suction loop.
Eccentric rotor was backflow end angle θ with the angle of slide plate on sense of rotation when the rotation of the eccentric rotor of wherein said rotary compressor made compression chamber just break away from refluxing opening, and 0 span is 90 °≤θ≤270 °.
Wherein said backflow end angle θ is 200 °.
Beneficial effect of the present invention is: a kind of consumption-reducing variable displacement rotary compressor of the present invention, and the housing assembly of said rotary compressor includes upper flange, lower flange and cylinder, and upper flange, lower flange are arranged on the cylinder two ends and enclose the sealing cylinder chamber; The upper flange of said formation housing assembly or lower flange or cylinder are provided with the refluxing opening that is communicated in the cylinder chamber; The refluxing opening connection is provided with the return flow line on the housing assembly; The external port of return flow line connects a reflux line, and reflux line wore housing and was connected to the suction loop of compressor; Because refluxing opening is communicated to through the return flow line and sucks the loop, cylinder is just beginning the suction circuit communication of the compression chamber and the compressor of compression stage, when eccentric rotor rotates; Gas in the compression chamber is back to through refluxing opening, return flow line, reflux line and sucks the loop, at this moment, compares with traditional compressor; The pressure of the compression chamber of compressor is less, and the resistance of slide plate is little, and the power of electrical consumption is lower; When eccentric rotor gets into backflow end angle θ, could stop the gas backstreaming of compression chamber, after this just can carry out the effective gas compression, reflux line is provided with the flow-controllable stop valve; Use is in the refrigerator of compressor, air-conditioning system; When a large amount of pressurized gas of needs, the flow-controllable stop valve is closed, and stops gas inflow suction loop in the compression chamber; This moment, compressor and traditional compressor were as good as, and provided a large amount of pressurized gass to participate in circulation; When the ambient temperature of needs adjusting reaches the range temperature of setting, only need a spot of pressurized gas of compressor can keep under the situation of such temperature, system opens and is arranged on the flow stop valve on the reflux line; Passable minimizing available gas decrement, system can also regulate the flow of flow-controllable stop valve according to the temperature difference situation of ambient temperature and setting temperature; Regulate the flow of reflux line reflux gas, reach the rational available gas decrement of control, so that keep suitable ambient temperature; Reduce motor load and reduce power consumption, simultaneously, reduce the start-stop time of compressor; The temperature of regulating is relatively stable, and energy-saving effect is obvious, and travelling comfort is good.
Description of drawings
Fig. 1 is a rotary compressor structural representation in the rotary compressor;
Fig. 2 waves the compressor arrangement schematic representation in the rotary compressor;
Fig. 3 is rotary compressor embodiment one structural representation of the present invention;
Fig. 4 is rotary compressor embodiment two structural representations of the present invention;
Fig. 5 is rotary compressor embodiment three structural representations of the present invention;
Backflow end angle θ positional structure schematic representation when Fig. 6 is arranged on upper and lower flange for compressor refluxing opening of the present invention;
Fig. 7 is backflow end angle θ positional structure schematic representation on the compressor refluxing opening cylinder of the present invention.
Embodiment
To combine accompanying drawing that the present invention is further specified below:
Embodiment one
A kind of consumption-reducing variable displacement rotary compressor; As shown in Figure 3; A kind of consumption-reducing variable displacement rotary compressor, the housing assembly of rotary compressor include upper flange 1, lower flange 2 and cylinder 3, and upper flange 1, lower flange 2 are arranged on cylinder 3 two ends and enclose sealing cylinder chamber 36; The upper flange 1 that constitutes housing assembly is provided with the refluxing opening 4 that is communicated to 36 li of cylinder chambers; Upper flange 1 is provided with the return flow line 41 that connects refluxing opening 4; The external port of return flow line 41 connects a reflux line 5; Reflux line 5 wore housing 6 and was connected to the outlet end 82 entering suction loops of compressor liquor separator 8, on the reflux line 5 outside housing 6 flow-controllable stop valve 7 was set.
Embodiment two
This embodiment and embodiment one are similar basically, see Fig. 4, and difference is that the refluxing opening 4 and the return flow line 41 of present embodiment all are arranged on the cylinder 3.
Embodiment three
This embodiment and embodiment one are similar basically, see Fig. 5, and difference is that the refluxing opening 4 and the return flow line 41 of present embodiment all are arranged on the lower flange 2, and reflux line 5 wore housing 6 and was connected to the entry end 81 entering suction loops of compressor liquor separator 8.
In order to realize refluxing preferably and effectively reduce energy consumption; Refluxing opening 4 is general select when compressor compresses is worked in the cylinder chamber 36 in the baric area of pressure on the low side; Eccentric roller was backflow end angle θ with the angle of slide plate 32 on sense of rotation when the eccentric roller rotation of rotary compressor made compression chamber just break away from refluxing opening 4; Fig. 6, Fig. 7 have indicated respectively and have been arranged on the schematic representation that refluxing opening 4 upper and lower flanges 2 and refluxing opening 4 are arranged on the backflow end angle θ on the cylinder 3,, become the discharge capacity effect and all can realize during in 90 °≤θ≤270 ° through the span of experimental summary θ; When backflow end angle θ is 200 °, best results.
Consumption-reducing variable displacement rotary compressor of the present invention sucks the loop because refluxing opening 4 is communicated to through return flow line 41, and cylinder 3 begins the compression chamber 34 of compression stage and the suction circuit communication of compressor just; When eccentric rotor 31 rotated, the gas in the compression chamber 34 was back to the suction loop through refluxing opening 4, return flow line 41, reflux line 5 and gets into air aspiration cavity 33, at this moment; Compare with traditional compressor, the pressure of the compression chamber 34 of compressor is less, and the resistance of slide plate 32 is little; The power of electrical consumption is lower, when eccentric rotor 31 gets into backflow end angle 0, could stop the gas backstreaming of compression chamber 34, after this just can carry out the effective gas compression; Reflux line 5 is provided with flow-controllable stop valve 7, uses in refrigerator at compressor, the air-conditioning system, when a large amount of pressurized gas of needs; Flow-controllable stop valve 7 is closed; Stop gas inflow suction loop in the compression chamber, this moment, compressor and traditional compressor were as good as, and provided a large amount of pressurized gass to participate in circulation; When the ambient temperature of needs adjusting reaches the range temperature of setting, only need a spot of pressurized gas of compressor can keep under the situation of such temperature, system opens and is arranged on the flow stop valve 7 on the reflux line 5; Passable minimizing available gas decrement, system can also regulate the flow of flow-controllable stop valve 7 according to the temperature difference situation of ambient temperature and setting temperature; Regulate the flow of reflux line 5 reflux gas, reach the rational available gas decrement of control, so that keep suitable ambient temperature; Reduce motor load and reduce power consumption; Simultaneously, reduce the start-stop time of compressor, the temperature of adjusting is relatively stable; Energy-saving effect is obvious, and travelling comfort is good.
The above embodiment; It is preferred embodiments of the present invention; Be not to limit practical range of the present invention,, all should be included in the patent claim of the present invention so all equivalences of doing according to the described structure of claim of the present invention, characteristic and principle change or modify.
Claims (5)
1. consumption-reducing variable displacement rotary compressor, the housing assembly of said rotary compressor includes upper flange (1), lower flange (2) and cylinder (3), and upper flange (1), lower flange (2) are arranged on cylinder (3) two ends and enclose sealing cylinder chamber (36); Upper flange of said formation housing assembly (1) or lower flange (2) or cylinder (3) are provided with the refluxing opening (4) that is communicated to cylinder chamber (36) lining; Refluxing opening (4) is connected in the return flow line (41) on the housing assembly; The external port of return flow line (41) connects a reflux line (5), and reflux line (5) wore housing (6) and was connected to the suction loop of compressor; It is characterized in that said reflux line (5) is provided with flow-controllable stop valve (7).
2. a kind of consumption-reducing variable displacement rotary compressor according to claim 1 is characterized in that, the entry end (81) that said reflux line (5) is connected to the liquor separator (8) of compressor gets into the suction loop.
3. a kind of consumption-reducing variable displacement rotary compressor according to claim 1 is characterized in that, the outlet end (82) that said reflux line (5) is connected to the liquor separator (8) of compressor gets into the suction loop.
4. according to said any one consumption-reducing variable displacement rotary compressor of claim 1-3; It is characterized in that; Eccentric rotor (31) was backflow end angle θ with the angle of slide plate (32) on sense of rotation when the eccentric rotor of said rotary compressor (31) rotation made compression chamber just break away from refluxing opening (4), and the span of θ is 90 °≤θ≤270 °.
5. a kind of consumption-reducing variable displacement rotary compressor according to claim 4 is characterized in that, said backflow end angle θ is 200 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101784250A CN101691863B (en) | 2009-09-24 | 2009-09-24 | Consumption-reducing variable displacement rotary compressor |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2009101784250A CN101691863B (en) | 2009-09-24 | 2009-09-24 | Consumption-reducing variable displacement rotary compressor |
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| CN101691863A CN101691863A (en) | 2010-04-07 |
| CN101691863B true CN101691863B (en) | 2012-02-01 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105782042A (en) * | 2016-04-28 | 2016-07-20 | 珠海格力节能环保制冷技术研究中心有限公司 | Multistage compressor, air conditioning system and controlling method of multistage compressor |
| DE102017214941A1 (en) | 2017-08-25 | 2019-02-28 | Dometic Sweden Ab | Recreational vehicle, cooling device, control system and method of controlling the cooling device |
| DE112018005002T5 (en) | 2017-10-27 | 2020-07-16 | Dometic Sweden Ab | SYSTEMS, METHODS AND DEVICES FOR PROVIDING COMMUNICATION BETWEEN AIR-CONDITIONING CONTROL DEVICES IN A MOTORHOME |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1040417A (en) * | 1988-08-12 | 1990-03-14 | 三菱重工业株式会社 | Rotary compressor |
| CN1611781A (en) * | 2003-10-30 | 2005-05-04 | 乐金电子(天津)电器有限公司 | Rotary compressor |
| JP2008082183A (en) * | 2006-09-26 | 2008-04-10 | Matsushita Electric Ind Co Ltd | Vane rotary compressor |
| CN101294568A (en) * | 2007-04-25 | 2008-10-29 | 珠海格力电器股份有限公司 | Rotary compressor with air injection enthalpy-increasing function |
-
2009
- 2009-09-24 CN CN2009101784250A patent/CN101691863B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1040417A (en) * | 1988-08-12 | 1990-03-14 | 三菱重工业株式会社 | Rotary compressor |
| CN1611781A (en) * | 2003-10-30 | 2005-05-04 | 乐金电子(天津)电器有限公司 | Rotary compressor |
| JP2008082183A (en) * | 2006-09-26 | 2008-04-10 | Matsushita Electric Ind Co Ltd | Vane rotary compressor |
| CN101294568A (en) * | 2007-04-25 | 2008-10-29 | 珠海格力电器股份有限公司 | Rotary compressor with air injection enthalpy-increasing function |
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| CN101691863A (en) | 2010-04-07 |
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