CN101655094A - Oil homogenizing structure for scroll compressor - Google Patents
Oil homogenizing structure for scroll compressor Download PDFInfo
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- CN101655094A CN101655094A CN200810054191A CN200810054191A CN101655094A CN 101655094 A CN101655094 A CN 101655094A CN 200810054191 A CN200810054191 A CN 200810054191A CN 200810054191 A CN200810054191 A CN 200810054191A CN 101655094 A CN101655094 A CN 101655094A
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Abstract
The invention discloses an oil homogenizing structure for a scroll compressor, which comprises a closed container of the compressor, wherein the inside of the closed container is provided with a section of oil homogenizing pipe inserted; a position where the section of the oil homogenizing pipe is connected with the side wall of the closed container is provided with a connecting port of the oil homogenizing pipe; the outer wall of the section of the oil homogenizing pipe is sleeved with a floating wall capable of freely moving up and down; the floating ball is positioned between the connectingport of the oil homogenizing pipe and a lower frame fixed to the lower end in the closed container; the outside of the compressor is provided with a floating ball sensor capable of detecting the height of the floating ball at a specific position in the closed container; and the floating ball sensor controls the rotation of the scroll compressor according to the detected height of the floating ball at the specific position in the closed container. On the premise of ensuring excellent oil homogenizing, the oil homogenizing structure effectively reduces the start-stop frequency of the prior scroll compressor, prevents the scroll compressor from being started and stopped frequently and improves the service life of the scroll compressor greatly.
Description
Technical field
The present invention relates to field of mechanical technique, particularly relate to a kind of oil homogenizing structure of scroll compressor.
Background technique
As existing spool (scroll) compressor of air conditioner and freezer compressor as shown in Figure 1, below its structure is given brief description.
As shown in the figure, be provided with loam cake 1b in the upper end of the columnar shell 1a of seal container 1, the lower end is provided with substrate 1c.Upper frame (frame) 2 is being fixed in upper end in the inside of container, and lower frame 3 is being fixed in the lower end.
In addition, be provided with structural components of electric 6 between above-mentioned upper frame 2 and lower frame 3, this structural components of electric 6 is made of stator 4 and rotor 5, and its rotor is installed in the inside of said stator 4 and can rotates.Above-mentioned rotor 5 upper and lower be provided with weight equalizer (Balance Weight, BW), the unbalanced phenomena that this weight equalizer produces in the time of can reconciling rotor 5 rotations.
In addition, the center of above-mentioned rotor 5 has vertically formed axis hole 5a, has been pressed into running shaft 7 in this axis hole, and running shaft is rotated along with the rotation of rotor 5.The upper end that is connected the running shaft 7 on the rotor 5 by said method is inserted in the supported hole 2a of upper frame 2 and can rotates, and its lower end is inserted in the supported hole 3a of lower frame 3 and can rotates.
The upper end of above-mentioned upper frame 2 is provided with compression structure parts 10, these compression structure parts are by fixedly spool (scroll) 8 and spinning reel (scroll) 9 constitute, wherein fixedly spool is fixed on the upper frame 2, and spinning reel is connected between said fixing spool 8 and the upper frame 2 and can rotates.Formed projection (boss) 11 in the lower end of above-mentioned spinning reel 9, then formed in the upper end of above-mentioned running shaft 7 and can make its eccentric eccentric part 7a, this eccentric part 7a is inserted and secured in the attachment hole 11a of above-mentioned projection 11.
In addition, the lower end of above-mentioned running shaft 7 is connecting send oily device (oil feeder) 13, this send oily device to come up the oil that is positioned at seal container 1 bottom (oil) 12 suctions, oil is transported to the position that produces friction in the compression structure parts 10 by the oil circuit 7b that forms then on running shaft 7.
In addition, be provided with the suction pipe 14 and the discharge tube 15 that is used for cold media air is discharged that is used for sucking cold media air in the side of above-mentioned seal container 1, and exist certain height poor between the two.The top high low pressure separating plate 16 that can mark off low-pressure section and high-pressure section of fixing of said fixing spool 8, what wherein be detained in low-pressure section is to flow into cold media air in the seal container 1 by above-mentioned suction pipe 14, such cooled coal gas cognition is compressed in compression structure parts 10, discharge by discharge tube 15 then, what be detained in high-pressure section is exactly after this compression but the cold media air before discharging.
The top safety check (check valve) 19 that connecting of said fixing spool (scroll) 8, this safety check is made of valve plates (Valve plate) 17 and valve guide element (valve guide), wherein valve plates 17 can open and close, thereby adverse current does not take place in the cold media air of discharging by the tap hole 8a that forms on fixing spool (scroll) 8, valve guide structure 18 then can play leading role, thereby makes above-mentioned valve plates 17 obscission can not take place.
The sheath (wrap) that unaccounted reference character 8b is a fixedly spool among the figure, 8c is the refrigerant ostium, and 9a is the sheath (wrap) of spinning reel (scroll), and 18a is the pressurized gas ostiums, and 16a is a tap hole.
In having the spool of said structure (scroll) compressor, if the connection power supply, the rotor 5 of structural components of electric 6 will rotate so, along with the rotation of above-mentioned rotor 5, running shaft 7 also can rotate, and the spinning reel (scroll) 9 that is connected running shaft 7 upper ends simultaneously also begins rotation.
The rotation of above-mentioned spinning reel (scroll) 9 is achieved in that promptly: be that turning radius is rotated motion with the eccentric distance, wherein above-mentioned eccentric distance is to the distance at the center of eccentric part 7a from the center of running shaft 7.Xuan Zhuan spinning reel (scroll) 9 can prevent its rotation by sliding sleeve (sliding bush) by this way.
If the top said spinning reel of picture (scroll) 9 begins rotation, so its sheath (wrap) 9a can with sheath (wrap) the 8b interlock mutually of said fixing spool (scroll) 8, thereby also begin to rotatablely move, this moment, cold media air can flow to the low-pressure section 20 of seal container 1 by above-mentioned suction pipe 14, the cold media air of Liu Ruing can flow in the compression chamber (pocket) by the refrigerant ostium 8c that forms on fixing spool (scroll) 8 like this, and above-mentioned compression chamber is to form between sheath (wrap) 9a of sheath (wrap) 8b of fixing spool (scroll) 8 and spinning reel (scroll) 9.Continuous rotation along with spinning reel (scroll) 9, the volume of compression chamber can dwindle, cold media air will be compressed thus, and cold media air can move to middle body simultaneously compressed, is discharged to the outside by the fixing tap hole 8a of spool (scroll) 8 at last.
Compressor carry out aforesaid compression process during in, the oil 12 that is stored in the bottom of seal container 1 can drunk up under the effect of sending oily device 13 of running shaft 7 rotations, and the oil 12 that is drunk up like this can be transported on the compression structure parts 10 by oil circuit 7b.
The front elevation of Fig. 2 when 2 compressors link together by oil equalizing pipe in the prior art.The large-scale refrigerated air-conditioning system that is installed in the building generally all is many bodies (multi-type) system that is connecting several indoor sets on 1 outdoor unit, on roadability, need to connect 2 compressors on the indoor set, one is that anti-phase (invert) uses compressor 40, another is a constant speed compressor 40, for oil 12 is remained on certain level, above-mentioned 2 compressors 40,40 ' link together by oil equalizing pipe 50.
At present in order to realize equal oil, referring to Fig. 2, a kind of method of equal oil that realizes is: drive two compressor A of running and B 2 hours simultaneously, compressor A 1 minute then shuts down earlier, compressor B 1 minute then shuts down, two compressor A and B 2 hours then remain in operation, so repeatedly, logic is controlled two compressors forcibly and is carried out equal oil, makes the oil of two compressors realize equal oil content cloth, still, as previously mentioned, this realization all mode of oil repeatedly needs the compressor that shuts down, and the start-stop of compressor is frequent, has had a strong impact on the working life of compressor.
Summary of the invention
In view of this, the oil homogenizing structure that the purpose of this invention is to provide a kind of scroll compressor can reduce the start-stop number of times of existing scroll compressor effectively under the prerequisite that guarantees good all oil, avoid scroll compressor by frequent start-stop, the working life of improving scroll compressor greatly.
For this reason, the invention provides a kind of oil homogenizing structure of scroll compressor, include the seal container 301 of compressor, state one section oil equalizing pipe 304 that seal container 301 inside have insertion described, this section oil equalizing pipe 304 has an oil equalizing pipe connection mouth 305 with the sidewall joint of seal container 301, the outer wall of this section oil equalizing pipe 304 is with the ball float 306 that can freely move up and down, described ball float 306 is between the lower frame 307 that the interior lower end of oil equalizing pipe connection mouth 305 and seal container 301 is fixed, outside compressor, has a floating ball sensor that can detect ball float 306 at the height of seal container 301 inner particular locations, described floating ball sensor according to detect the ball float 306 that obtains height at seal container 301 inner particular locations, the rotation of scroll compressor is controlled.
Preferably, when described floating ball sensor is used to detect ball float 306 and swims in the equal oily starting point 304a place of seal container 301 inside, the notice scroll compressor begins rotation and carries out equal oil, when detecting ball float 306 and swim in the equal oily end point 304b place of seal container 301 inside, the notice scroll compressor stops the rotation, and finishes all oil.
Preferably, described equal oily starting point 304a and equal oily end point 304b are on the vertical line between oil equalizing pipe connection mouth 305 and the lower frame 307, and described equal oily starting point 304a is higher than equal oily end point 304b.
Preferably, the concrete height of described equal oily starting point 304a and equal oily end point 304b requires to preestablish according to the concrete condition of compressor and user's equal oil.
By above technological scheme provided by the invention as seen, the present invention is according to the height of ball float at the inner particular location of seal container, know the fuel head of seal container inside, thereby come the rotation of scroll compressor is controlled, so the present invention can be under the prerequisite that guarantees good all oil, reduce the start-stop number of times of existing scroll compressor effectively, avoid scroll compressor by frequent start-stop, the working life of improving scroll compressor greatly.
Description of drawings
Fig. 1 is the front elevation of the structure of existing scroll compressor;
The front elevation of Fig. 2 when 2 compressors link together by oil equalizing pipe in the prior art;
Fig. 3 is the schematic representation of the oil homogenizing structure of a kind of scroll compressor provided by the invention;
Fig. 4 is the enlarged diagram of oil equalizing pipe attachment portion in the oil homogenizing structure of scroll compressor shown in Figure 3;
Fig. 5 is two compressors with oil homogenizing structure provided by the invention front elevations when linking together by oil equalizing pipe.
Embodiment
In order to make those skilled in the art person understand the present invention program better, the present invention is described in further detail below in conjunction with drawings and embodiments.
Referring to Fig. 3, Fig. 3 is the schematic representation of the oil homogenizing structure of a kind of scroll compressor provided by the invention, the oil homogenizing structure of a kind of scroll compressor provided by the invention comprises: the columnar seal container 301 of compressor, be provided with the suction pipe 302 and the discharge tube 303 that is used for cold media air is discharged that is used for sucking cold media air in the described side of stating seal container 301, be inserted into one section oil equalizing pipe 304 of seal container 301 inside, this section oil equalizing pipe 304 has an oil equalizing pipe connection mouth 305 with the sidewall joint of seal container 301, by described oil equalizing pipe connection mouth 305, this section oil equalizing pipe 304 of seal container 301 inside is connected with the oil equalizing pipe of seal container 301 outsides (figure slightly), the outer wall of this section oil equalizing pipe 304 is with the ball float 306 that can freely move up and down, fixing lower frame 307 in the interior lower end of seal container 301, described ball float 306 is between oil equalizing pipe connection mouth 305 and lower frame 307, float on the pasta 308 of seal container 301 inside, referring to Fig. 4.
The present invention is outside scroll compressor, be provided with a floating ball sensor (sensor) (figure slightly), know the height of ball float 306 by described floating ball sensor detection at seal container 301 inner particular locations, thereby know the fuel head of seal container 301 inside, this floating ball sensor according to detect the ball float 306 that obtains height at seal container 301 inner particular locations, the rotation of scroll compressor is specifically controlled.
In the present invention, when floating ball sensor detected ball float 306 and swims in equal oily starting point 304a place, the notice scroll compressor began rotation, carries out equal oil; Along with compressor constantly rotates, when floating ball sensor detected ball float 306 and swims in equal oily end point 304b place, the notice scroll compressor stopped the rotation, and finished all oil.
Shown in Fig. 3,4, described equal oily starting point 304a and equal oily end point 304b are on the vertical line between oil equalizing pipe connection mouth 305 and the lower frame 307, described equal oily starting point 304a is higher than equal oily end point 304b, and the concrete height of equal oily starting point 304a and equal oily end point 304b requires to preestablish according to the concrete condition (rotational speed etc.) of compressor and user's equal oil.
Referring to Fig. 5, Fig. 5 has two compressor A of oil homogenizing structure provided by the invention and the B front elevation when linking together by oil equalizing pipe.
For two compressor A with oil homogenizing structure of the present invention and B, introduce two kinds below and specifically carry out all mode of executions of oil.Specific as follows:
First kind of equal oily mode of execution: compressor A and B, running simultaneously after two compressors start simultaneously, when compressor A runs to oil level and is lower than setting height (being the equal oily end point 304b that ballottement is answered), compressor A decommissions, the oil of B compressor flow among the compressor A, simultaneously, compressor B still turns round, and provides equal oil to compressor A.When compressor B runs to oil level and is lower than setting height (being the equal oily end point 304b that ballottement is answered), compressor B decommissions, simultaneously, when compressor A when reaching setting height (being the equal oily starting point 304a that ballottement is answered), again running is all oily, the oil of compressor A flow in the B compressor, and this moment, compressor A still turned round.So, two compressors are running alternately, alternately stops, and alternately carries out equal oil to another compressor.
Second kind of equal oily mode of execution: compressor A and B, two compressors start running simultaneously, when a certain compressor oil level is lower than setting height (being the equal oily end point 304b that ballottement is answered) behind the running certain hour, this compressor shuts down, obtain equal oil by an other compressor, the compressor of fuel feeding does not shut down simultaneously.All remain in operation behind the oil, when the oil level of a certain compressor was lower than setting temperature (ballottement is answered) once more, this compressor shut down, and obtains equal oil by an other compressor place, and simultaneously, the compressor of fuel feeding does not shut down.In the present embodiment, in front and back double equal when oil,, the compressor that stops can be same, also can be different compressors.
In view of prior art is that two compressor A and B start simultaneously, the mandatory compressor A that stops behind the running certain hour, carry out equal oil with compressor B, rerun the mandatory compressor B that stops behind the certain hour, all oily with compressor A, all oil mutually alternately shuts down, therefore, can learn by above-mentioned two kinds of mode of executions, the oil homogenizing structure of scroll compressor provided by the invention can accurately and timely be controlled the equal oil of the rotation of compressor, it is all oily to guarantee that compressor just stops the rotation when being lower than setting height (being the equal oily end point 304b that ballottement is answered), effectively accurately controlled the time that equal oil carries out, thereby can reduce unnecessary energy loss and mechanical loss, the frequent starting of avoiding two compressor A and B with stop, thereby prolong life-span of two compressors.
The above only is a preferred implementation of the present invention; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (4)
1, a kind of oil homogenizing structure of scroll compressor, it is characterized in that, include the seal container (301) of compressor, state one section oil equalizing pipe (304) that seal container (301) inside has insertion described, this section oil equalizing pipe (304) has an oil equalizing pipe connection mouth (305) with the sidewall joint of seal container (301), the outer wall of oil equalizing pipe (304) is with the ball float (306) that can freely move up and down, described ball float (306) is positioned between the fixing lower frame (307) of the interior lower end of oil equalizing pipe connection mouth (305) and seal container (301), outside compressor, has a floating ball sensor that can detect ball float (306) at the height of the inner particular location of seal container (301), described floating ball sensor according to detect the ball float (306) that obtains height at the inner particular location of seal container (301), the rotation of scroll compressor is controlled.
2, the oil homogenizing structure of scroll compressor as claimed in claim 1, it is characterized in that, described floating ball sensor is used to detect ball float (306) and swims in the inner equal oily starting point (304a) of seal container (301) when locating, the notice scroll compressor begins rotation and carries out equal oil, swim in the inner equal oily end point (304b) of seal container (301) when locating detecting ball float (306), the notice scroll compressor stops the rotation, and finishes all oil.
3, the oil homogenizing structure of scroll compressor as claimed in claim 2, it is characterized in that, described equal oily starting point (304a) and equal oily end point (304b) are positioned on the vertical line between oil equalizing pipe connection mouth (305) and the lower frame (307), and described equal oily starting point (304a) is higher than equal oily end point (304b).
4, the oil homogenizing structure of scroll compressor as claimed in claim 3 is characterized in that, the concrete height of described equal oily starting point (304a) and equal oily end point (304b) requires to preestablish according to the concrete condition of compressor and user's equal oil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810054191A CN101655094A (en) | 2008-08-20 | 2008-08-20 | Oil homogenizing structure for scroll compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810054191A CN101655094A (en) | 2008-08-20 | 2008-08-20 | Oil homogenizing structure for scroll compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101655094A true CN101655094A (en) | 2010-02-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200810054191A Pending CN101655094A (en) | 2008-08-20 | 2008-08-20 | Oil homogenizing structure for scroll compressor |
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| CN (1) | CN101655094A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102434436A (en) * | 2011-11-10 | 2012-05-02 | 上海英范特冷暖设备有限公司 | Reliable oil supply structure of piston type compressor for vessel |
| CN105673500A (en) * | 2014-11-18 | 2016-06-15 | 上海日立电器有限公司 | Air conditioning system, rotary compressor thereof and method for controlling oil outlet rate |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0717192A1 (en) * | 1994-06-29 | 1996-06-19 | Daikin Industries, Ltd. | Oil level control device for a compressor |
| CN1795355A (en) * | 2003-07-29 | 2006-06-28 | 美达凯姆株式会社 | Oil checking device for compressor of air conditioning system |
| CN201013579Y (en) * | 2007-03-01 | 2008-01-30 | 无锡力源压缩机有限公司 | Controller for PLC controlling medium-pressure compressor oil sit |
-
2008
- 2008-08-20 CN CN200810054191A patent/CN101655094A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0717192A1 (en) * | 1994-06-29 | 1996-06-19 | Daikin Industries, Ltd. | Oil level control device for a compressor |
| CN1129968A (en) * | 1994-06-29 | 1996-08-28 | 达金工业株式会社 | Oil level control device for compressor |
| CN1795355A (en) * | 2003-07-29 | 2006-06-28 | 美达凯姆株式会社 | Oil checking device for compressor of air conditioning system |
| CN201013579Y (en) * | 2007-03-01 | 2008-01-30 | 无锡力源压缩机有限公司 | Controller for PLC controlling medium-pressure compressor oil sit |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102434436A (en) * | 2011-11-10 | 2012-05-02 | 上海英范特冷暖设备有限公司 | Reliable oil supply structure of piston type compressor for vessel |
| CN105673500A (en) * | 2014-11-18 | 2016-06-15 | 上海日立电器有限公司 | Air conditioning system, rotary compressor thereof and method for controlling oil outlet rate |
| CN105673500B (en) * | 2014-11-18 | 2017-10-27 | 上海日立电器有限公司 | The method of air-conditioning system and its rotary compressor and control oil yield |
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Application publication date: 20100224 |