CN103486032B - Two-stage variable capacity compressor and air conditioner - Google Patents
Two-stage variable capacity compressor and air conditioner Download PDFInfo
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- CN103486032B CN103486032B CN201210197042.XA CN201210197042A CN103486032B CN 103486032 B CN103486032 B CN 103486032B CN 201210197042 A CN201210197042 A CN 201210197042A CN 103486032 B CN103486032 B CN 103486032B
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Abstract
The invention discloses a kind of two-stage variable capacity compressor and air conditioner, compressor comprises compressor body and liquor separator, compressor body comprises housing, first flange, first order cylinder, second level cylinder, second flange and lower cover plate, second level cylinder has the second intakeport and the second vane slot, at this second vane slot built with the second slide plate, and lock groove is provided with on this second slide plate, second flange has center hole and pilot hole, the inwall of this center hole is provided with oil groove, at this pilot hole built with the pin that can move axially, the afterbody of this pin is equipped with elastic reset member, second flange is provided with the first oil supply gallery being communicated with pilot hole and oil groove and/or the second oil supply gallery being communicated with pilot hole and housing cavity.Two-stage variable capacity compressor provided by the present invention, can ensure to have refrigeration oil between pin and pin hole always, enables compressor realize the smooth switching of single twin-tub, ensures that the performance of compressor can not degenerate simultaneously.
Description
Technical field
The present invention relates to compressor, particularly relate to a kind of two-stage variable capacity compressor, and there is the air conditioner of this two-stage variable capacity compressor.
Background technique
The capacity regulating mode of existing a kind of twin-stage variable volume compressor (application number as applicant application be 201220232315.5 in first patent), rely on the work of lower cylinder or unloading to realize the running of this compressor single cylinder or twin-tub, and the operating condition controlling lower cylinder work or unloading is realized by a pin.Pin is contained in pin hole, and arranges Returnning spring at the afterbody of pin, utilizes the pressure reduction of pin head and afterbody to make pin fore and aft motion in pin hole, with optionally locking or unclamp slide plate.
This variable conpacitance compressor is when twin-tub operates, because pin head and afterbody exist very large pressure reduction, so just likely cause leakage, if there is the leakage of gas, two bad consequences will be produced: (1) pressure reduction is inadequate, causes and can not switch to twin-tub; (2) cause the pressure of inspiration(Pi) at lower cylinder intakeport place to increase, cause exhaust pressure and delivery temperature to increase, thus the performance depreciation of compressor.
Summary of the invention
For above-mentioned prior art present situation, first technical problem to be solved by this invention is, provide a kind of two-stage variable capacity compressor, it can avoid the Leakage Gas at pin feature place, realize the smooth switching of single twin-tub, ensure that the performance of compressor can not degenerate simultaneously.
Second technical problem to be solved by this invention is, provides a kind of air conditioner with above-mentioned two-stage variable capacity compressor.
The present invention solves the technological scheme that above-mentioned first technical problem adopt: a kind of two-stage variable capacity compressor, comprise compressor body and liquor separator, described compressor body comprises housing, first flange, first order cylinder, second level cylinder, second flange and lower cover plate, described first order cylinder has the first intakeport, this first intakeport is communicated with the relief opening of described liquor separator, described second level cylinder has the second intakeport and the second vane slot, at this second vane slot built with the second slide plate, and lock groove is provided with on this second slide plate, described second flange has center hole and pilot hole, at this pilot hole built with the pin that can move axially, the head of this pin can insert in described lock groove, the afterbody of this pin is equipped with elastic reset member, described compressor body also comprises the pressure difference mechanism for producing pressure difference between the head and afterbody of described pin, described second flange is provided with the first oil supply gallery being communicated with described pilot hole and described center hole and/or the second oil supply gallery being communicated with described pilot hole and described housing cavity.
Wherein in an embodiment, the inwall in described second flange center hole is provided with oil groove, and described first oil supply gallery is communicated with this oil groove.
Wherein in an embodiment, described first oil supply gallery comprise radial arrange and the first oil circuit be communicated with described oil groove and the second oil circuit being communicated with this first oil circuit and described pilot hole.
Wherein in an embodiment, described second oil circuit is the groove of opening towards described second level cylinder.
Wherein in an embodiment, described second oil supply gallery extends the side of the side axial of described second level cylinder to opposite side from described second flanged surface.
Wherein in an embodiment, described pressure difference mechanism comprise be arranged on described second vane slot afterbody and be communicated with described lock groove and described housing cavity enclosed cavity, be arranged on described pin back to the pressure chamber of its head side, the connection air flue being communicated with this pressure chamber and described second intakeport and pressure switching device, described second intakeport is by described pressure switching device selectivity and the relief opening of described liquor separator and the inner space of described housing.
Wherein in an embodiment, described elastic reset member is spring, the first spring eye is provided with in the afterbody of described pin, described lower cover plate is arranged on the below of described second flange, described lower cover plate is provided with second spring eye corresponding with described pilot hole, described pressure chamber is formed by the described pilot hole below described pin and described second spring eye, and one end of described spring is arranged in described first spring eye, and the other end is arranged in described second spring eye.
Wherein in an embodiment, described connection air flue comprises the 4th attachment hole being arranged on the first attachment hole that is on the cylinder of the described second level and that be connected with described intakeport, being arranged on the second attachment hole that is on described second flange and that be connected with described first attachment hole, being arranged on the 3rd attachment hole that is on described lower cover plate and that be connected with described second attachment hole and described 3rd attachment hole of connection be arranged on described lower cover plate and described second spring eye.
Wherein in an embodiment, described pressure switching device is three-way valve.
The present invention solves the technological scheme that above-mentioned second technical problem adopt: a kind of air conditioner, it comprises above-mentioned two-stage variable capacity compressor.
Compared with prior art, two-stage variable capacity compressor provided by the present invention, owing to being provided with for the oil supply gallery to the gap fuel feeding between pin and pilot hole on the second flange, can ensure to have refrigeration oil between pin and pin hole always, the Leakage Gas at pin feature place can be avoided, enable compressor realize the smooth switching of single twin-tub, ensure that the performance of compressor can not degenerate simultaneously.
Accompanying drawing explanation
Fig. 1 is the structural representation of the two-stage variable capacity compressor in one of them embodiment of the present invention;
The sectional structure schematic diagram that the second level cylinder that Fig. 2 is two-stage variable capacity compressor shown in Fig. 1, the second flange and lower cover plate are assembled together;
The sectional structure schematic diagram in another direction that the second level cylinder that Fig. 3 is two-stage variable capacity compressor shown in Fig. 1, the second flange and lower cover plate are assembled together;
The main TV structure schematic diagram of the second flange that Fig. 4 is two-stage variable capacity compressor shown in Fig. 1.
Above in each figure, 1, housing; 1a-outlet pipe; 2, the first flange; 3, the first slide plate; 4, first order cylinder; 41-first intakeport; 5, dividing plate; 6, second level cylinder; 61, the second intakeport; 62, the first attachment hole; 63, the second vane slot; 64, enclosed cavity; 7, the second flange; 71, pilot hole; 72, the second attachment hole; 73, the first oil supply gallery, 73a, the first oil circuit, 73b, the second oil circuit, the 74, second oil supply gallery, 75-center hole, 75a-oil groove, 8, lower cover plate; 81, the second spring eye; 82, the 3rd attachment hole; 83, the 4th attachment hole; 9, the second slide plate; 91, lock groove; 10, pin; 10a, the first spring eye; 11, spring; 12, liquor separator, 13, pressure switching device.
Embodiment
And the present invention is described in detail in conjunction with the embodiments below with reference to the accompanying drawings.It should be noted that, when not conflicting, the feature in following embodiment and embodiment can combine mutually.
As shown in Figure 1, two-stage variable capacity compressor in one of them embodiment of the present invention forms primarily of compressor body and liquor separator 12, wherein, compressor body comprises housing 1, first flange 2, first order cylinder 4, second level cylinder 6, second flange 7, lower cover plate 8 and pressure difference mechanism, and the first flange 2, first order cylinder 4, dividing plate 5, second level cylinder 6, second flange 7, lower cover plate 8 are assemblied in bottom housing 1 successively by order from top to bottom.
Described first order cylinder 4 has the first intakeport 41 and the first vane slot, one of them relief opening of this first intakeport 41 and liquor separator 12 through pipeline communication, at described first vane slot built with the first slide plate 3.
Described second level cylinder 6 has the second intakeport 61 and the second vane slot 63, at described second vane slot 63 built with the second slide plate 9, is provided with lock groove 91 at this second slide plate 9 on the side of the second flange 7.
Shown in composition graphs 2, Fig. 3 and Fig. 4, described second flange 7 has the center hole 75 that is connected with bent axle and the pilot hole 71 for holding pin 10, the inwall of this center hole 75 is provided with oil groove 75a, at this pilot hole 71 built with the pin 10 that can move axially, the head of this pin 10 can insert in described lock groove 91, with by the second vane slot 63 locking, the afterbody of this pin 10 is equipped with elastic reset member (being preferably spring 11).Preferably, the center line of described lock groove 91 and the center line eccentric setting of described pin 10, can ensure that the second slide plate 9 and roller depart from completely like this, pin 10 is when locked second slide plate 9 simultaneously, the top of pin 10 does not contact with the bottom of lock groove 91, ensure when needs pin 10 departs from lock groove 91, enough mineralization pressure chambeies, space are arranged at the top of pin 10.
Pressure difference mechanism is used for producing pressure difference between the head and afterbody of described pin 10.The pressure reduction of pin 10 head and afterbody is utilized to make pin 10 fore and aft motion in pin 10 hole like this, with optionally locking or unclamp the second slide plate.In order to avoid the Leakage Gas at the gap (the A place in Fig. 2) between pin 10 and pin 10 hole and the gap between pin 10 afterbody and lower cover plate 8 (the B place in Fig. 2), second flange 7 of the present embodiment is provided with the first oil supply gallery 73a being communicated with described pilot hole 71 and described oil groove 75a.Preferably, conveniently process, described first oil supply gallery 73a comprise radial arrange and the first oil circuit 73a be communicated with described oil groove 75a and the second oil circuit 73b being communicated with this first oil circuit 73a and described pilot hole 71.Further preferably, described second oil circuit 73b is the groove (be preferably rectangle groove) of opening towards described second level cylinder 6.In addition, the second oil supply gallery 74 being communicated with described pilot hole 71 and described housing 1 inner chamber also can be set on the second flange 7.Preferably, described second oil supply gallery 74 extends to the side of opposite side from the side axial of described second flange 7 in the face of described second level cylinder 6.Like this when pasta fall be not very low, refrigeration oil just enters two gap locations by the second oil supply gallery 74, thus reaches oil sealing.
The pressure difference mechanism of the present embodiment comprise be arranged on described second vane slot 63 afterbody and be communicated with described lock groove 91 and described housing 1 inner chamber enclosed cavity 64, be arranged on described pin 10 back to the pressure chamber of its head side, the connection air flue being communicated with this pressure chamber and described second intakeport 61 and pressure switching device 13, described second intakeport 61 is by described pressure switching device 13 selectivity and the relief opening of described liquor separator 12 and the inner space of described housing 1.Preferably, pressure switching device 13 is three-way valve, a port of pressure switching device 13 is connected with another relief opening of liquor separator 12, and second port of pressure switching device 13 is connected with the second intakeport 61, and the 3rd port of pressure switching device 13 is connected with outlet pipe 1a.When the second intakeport 61 is communicated with the relief opening of liquor separator 12, the afterbody of pin 10 is low pressure, poor with the head mineralization pressure of pin 10, and now, pin 10 and the second slide plate 9 unclamp, and compressor twin-stage runs; When the second intakeport 61 is communicated with outlet pipe 1a, the afterbody of pin 10 is high pressure, does not have pressure difference with the head of pin 10, and now, pin 10 is by the second slide plate 9 locking under the effect of spring 11, and compressor single-stage is run.
Pressure difference mechanism, except adopting the structure of the present embodiment, can also adopt other structures, as mentioned in the background art at first patent application (application number: the structure adopted 201220232315.5), does not repeat them here.
Preferably, the afterbody of described pin 10 is provided with the first spring eye 10a for placing spring 11.Lower cover plate 8 is provided with second spring eye 81 corresponding with the first spring eye 10a, and the lower end of spring 11 is placed in the second spring eye 81.By the described pilot hole 71 below described pin 10 and described second spring eye 81 mineralization pressure chamber, pressure chamber is connected with described intakeport through connecting air flue, connect air flue and be used for transmission of pressure, there is in such pin 10 afterbody and the second intakeport 61 gas of uniform pressure.Preferably, described connection air flue comprises and is arranged on the first attachment hole 62 that is on described second level cylinder 6 and that be connected with described second intakeport 61, is arranged on the second attachment hole 72 that is on described second flange 7 and that be connected with described first attachment hole 62, is arranged on the 3rd attachment hole 82 that is on described lower cover plate 8 and that be connected with described second attachment hole 72 and is arranged on the 4th attachment hole 83 of described 3rd attachment hole 82 of connection on described lower cover plate 8 and described second spring eye 81.
Further brief description is carried out to the working principle of the embodiment of the present invention below:
1. twin-tub runs
The pressure that refrigerant enters the first intakeport 41 and the second intakeport 61, first intakeport 41 and the second intakeport 61 place by liquor separator 12 is low pressure.Owing to wanting depended on pressure difference that pin 10 is depressed when twin-tub runs, admittedly owing to not having the pressure reduction required for formation during start, the second slide plate 9 is also in lockup state, now compressor is in the state that single cylinder runs.When after operation a period of time, the pressure in housing 1 raises, and now the second intakeport 61 place is low pressure, and so under the effect of pressure difference, pin 10 moves down, and the locking of the second slide plate 9 is removed, and resumes operation, and compressor twin-tub runs.
The two-stage variable capacity compressor of the embodiment of the present invention, owing to being provided with for the oil supply gallery to the gap fuel feeding between pin 10 and pilot hole 71 on the second flange 7, can ensure to have refrigeration oil between pin 10 and pin 10 hole always, enable compressor realize the smooth switching of single twin-tub, ensure that the performance of compressor can not degenerate simultaneously.
2. single cylinder runs
Refrigerant is divided into two-way by liquor separator 12, one tunnel directly enters the first intakeport 41, one tunnel is blocked through pressure switching device 13, now the pressurized gas of outlet pipe 1a enter the second intakeport 61 through pressure switching device 13, then the second intakeport 61 place is high pressure, and pin 10 afterbody communicates with the second intakeport 61 by connecting air flue.Gu pin 10 afterbody is also high pressure, and suitable with the pressure of housing 1, and pin 10 moves up under the effect of Returnning spring 11, locking second slide plate 9, and compressor single cylinder operates.
In another embodiment of the present invention, provide a kind of air conditioner with above-mentioned two-stage variable capacity compressor.
The above embodiment only have expressed several mode of execution of the present invention, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be as the criterion with claims.
Claims (10)
1. a two-stage variable capacity compressor, comprise compressor body and liquor separator, described compressor body comprises housing, first flange, first order cylinder, second level cylinder, second flange and lower cover plate, described first order cylinder has the first intakeport, this first intakeport is communicated with the relief opening of described liquor separator, described second level cylinder has the second intakeport and the second vane slot, at this second vane slot built with the second slide plate, and lock groove is provided with on this second slide plate, described second flange has center hole and pilot hole, at this pilot hole built with the pin that can move axially, the head of this pin can insert in described lock groove, the afterbody of this pin is equipped with elastic reset member, described compressor body also comprises the pressure difference mechanism for producing pressure difference between the head and afterbody of described pin, it is characterized in that, described second flange is provided with the first oil supply gallery being communicated with described pilot hole and described center hole and/or the second oil supply gallery being communicated with described pilot hole and described housing cavity.
2. two-stage variable capacity compressor according to claim 1, is characterized in that, the inwall in described second flange center hole is provided with oil groove, and described first oil supply gallery is communicated with this oil groove.
3. two-stage variable capacity compressor according to claim 2, is characterized in that, described first oil supply gallery comprise radial arrange and the first oil circuit be communicated with described oil groove and the second oil circuit being communicated with this first oil circuit and described pilot hole.
4. two-stage variable capacity compressor according to claim 3, is characterized in that, described second oil circuit is the groove of opening towards described second level cylinder.
5. two-stage variable capacity compressor according to claim 1, is characterized in that, described second oil supply gallery extends the side of the side axial of described second level cylinder to opposite side from described second flanged surface.
6. two-stage variable capacity compressor as claimed in any of claims 1 to 5, it is characterized in that, described pressure difference mechanism comprise be arranged on described second vane slot afterbody and be communicated with described lock groove and described housing cavity enclosed cavity, be arranged on described pin back to the pressure chamber of its head side, the connection air flue being communicated with this pressure chamber and described second intakeport and pressure switching device, described second intakeport is by described pressure switching device selectivity and the relief opening of described liquor separator and the inner space of described housing.
7. two-stage variable capacity compressor according to claim 6, it is characterized in that, described elastic reset member is spring, the first spring eye is provided with in the afterbody of described pin, described lower cover plate is arranged on the below of described second flange, described lower cover plate is provided with second spring eye corresponding with described pilot hole, described pressure chamber is formed by the described pilot hole below described pin and described second spring eye, one end of described spring is arranged in described first spring eye, and the other end is arranged in described second spring eye.
8. two-stage variable capacity compressor according to claim 7, it is characterized in that, described connection air flue comprises the 4th attachment hole being arranged on the first attachment hole that is on the cylinder of the described second level and that be connected with described second intakeport, being arranged on the second attachment hole that is on described second flange and that be connected with described first attachment hole, being arranged on the 3rd attachment hole that is on described lower cover plate and that be connected with described second attachment hole and described 3rd attachment hole of connection be arranged on described lower cover plate and described second spring eye.
9. two-stage variable capacity compressor according to claim 6, is characterized in that, described pressure switching device is three-way valve.
10. an air conditioner, is characterized in that, comprises two-stage variable capacity compressor as in one of claimed in any of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210197042.XA CN103486032B (en) | 2012-06-14 | 2012-06-14 | Two-stage variable capacity compressor and air conditioner |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210197042.XA CN103486032B (en) | 2012-06-14 | 2012-06-14 | Two-stage variable capacity compressor and air conditioner |
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| CN103486032A CN103486032A (en) | 2014-01-01 |
| CN103486032B true CN103486032B (en) | 2015-11-11 |
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| CN103573628B (en) * | 2012-08-10 | 2016-02-03 | 珠海格力节能环保制冷技术研究中心有限公司 | Compressor |
| CN105201836B (en) * | 2014-06-27 | 2018-01-02 | 珠海格力电器股份有限公司 | Air-conditioning system, air-conditioning system gas supplementary structure and double-stage compressor |
| CN108302041B (en) * | 2015-06-19 | 2019-08-02 | 珠海格力电器股份有限公司 | Air-conditioning system |
| CN106705473A (en) * | 2015-08-17 | 2017-05-24 | 珠海格力节能环保制冷技术研究中心有限公司 | Heat exchange system |
| CN106567831B (en) * | 2015-10-15 | 2019-01-29 | 珠海格力节能环保制冷技术研究中心有限公司 | Twin-stage positive displacement compressor and air-conditioning system with it |
| CN107956690B (en) * | 2017-11-23 | 2019-12-24 | 珠海格力电器股份有限公司 | Cylinder, pump body subassembly and compressor |
| CN109958625B (en) * | 2018-12-20 | 2020-01-07 | 珠海格力电器股份有限公司 | Deformation control method and system for elastic part of pin and variable-capacity compressor |
| CN111502993B (en) * | 2020-04-24 | 2021-04-16 | 珠海格力电器股份有限公司 | Compressor, heat exchange system and air conditioner |
| CN115467829A (en) * | 2022-09-27 | 2022-12-13 | 珠海格力电器股份有限公司 | Pump body subassembly, compressor unit spare and air conditioning system |
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