CN100540902C - The capacity regulating device of scroll compressor - Google Patents
The capacity regulating device of scroll compressor Download PDFInfo
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- CN100540902C CN100540902C CNB2004100965114A CN200410096511A CN100540902C CN 100540902 C CN100540902 C CN 100540902C CN B2004100965114 A CNB2004100965114 A CN B2004100965114A CN 200410096511 A CN200410096511 A CN 200410096511A CN 100540902 C CN100540902 C CN 100540902C
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- spool
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- scroll compressor
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Abstract
The invention relates to a kind of capacity regulating device of scroll compressor, comprise closed container, its inside forms to be provided with enclosed space and to be divided into and sucks the space and discharge the space; Fixedly spool and swing spool, they are positioned at above-mentioned closed container inside, pass through the spool lap that had and form compression volume, and operation fluid is compressed; Be communicated with valve, it runs through fixedly spool, and above-mentioned compression volume is linked to each other with the suction space.Therefore, the amount that the present invention has regulated the operation fluid that will compress by simple structure, thereby reduce manufacture cost.
Description
Technical field
The present invention relates to a kind of scroll compressor, particularly relate to a kind of capacity regulating device that can regulate the scroll compressor of compression volume according to use condition.
Background technique
Fig. 1 is the part sectional arrangement drawing of capacity regulating device of the scroll compressor of prior art.
As shown in Figure 1, closed container 1 comprises upper cap 1a, shell 1b and lower cover (not shown), and also formation is provided with enclosed space.And form in a side of closed container 1 and to be provided with suction pipe SP that sucks outside air and the discharge tube DP that discharges operation fluid.Operation fluid by above-mentioned suction pipe SP sucks moves to after suction space S 1 compression of low pressure and discharges space S 2, discharges by discharge tube DP.
Also have, power generating apparatus 3, it comprises fixed terminal 3a between above-mentioned upper frame 2 and lower frame, it is fixed on the inside of above-mentioned closed container 1; Rotary terminal 3b, it is positioned at the inside of said fixing terminal 3a, and converts magnetic force to rotating force, thereby rotates by magnetic force.
Running shaft 4, it can be sent to the rotating force of above-mentioned rotary terminal 3b swing spool 7, and the upper end inserts in the upper frame 2 in rotatable mode, and insert in the lower frame in rotatable mode its lower end.
Fixedly spool 5 is positioned at the inside of closed container 1, and its lower end forms the fixedly spool lap 5a that is provided with involute shape, and the middle part forms and is provided with the exhaust port 5b that can discharge the operation fluid after the compression.
Also have, swing spool 7, it is positioned at the lower end of said fixing spool 5, and links to each other with fixing spool 5 by the dentation which is provided with, and has the swing spool lap 7a of and corresponding setting identical with fixing spool lap 5a.Coincide with mutual 180 ° of phase difference phase differences by said fixing spool lap 5a and above-mentioned swing spool lap 7a, thereby can be formed with several compression volumes P simultaneously.Above-mentioned compression volume P is to the diminishing space of central part from the outside.
Also have, high low pressure separator disk 9, it is positioned at the upside of said fixing spool 5, the inner space of above-mentioned closed container 1 can be divided into to discharge space S 2 and suck space S 1.
Control valve assembly body 10, it is positioned at the top of the exhaust port 5b of said fixing spool 5, can control compression back to discharging the operation fluid that space S 2 transmits, and prevents to flow backwards and goes into compression volume P.
But the scroll compressor of prior art when regulating its compression volume according to use condition such as air-conditionings, use the conversion motor to provide portion as the power of compressor, or the mode of minimizing number of oscillations is carried out.
Therefore, though the capacity adjustment range superior performance of existing compressor is used expensive conversion motor, manufacture cost is risen.
This shows that above-mentioned existing scroll compressor obviously still has inconvenience and defective, and demands urgently further being improved in structure and use.In order to solve the problem that scroll compressor exists, relevant manufacturer there's no one who doesn't or isn't seeks solution painstakingly, but do not see always that for a long time suitable design finished by development, and common product does not have appropriate structure to address the above problem, this obviously is the problem that the anxious desire of relevant dealer solves.
Because the defective that above-mentioned existing scroll compressor exists, the inventor is based on being engaged in this type of product specification manufacturing abundant for many years practical experience and professional knowledge, and the utilization of cooperation scientific principle, actively studied innovation, capacity regulating device in the hope of the scroll compressor of founding a kind of new structure, can improve general existing scroll compressor, make it have more practicability.Through constantly research, design, and after studying sample and improvement repeatedly, create the present invention who has practical value finally.
Summary of the invention
Main purpose of the present invention is, overcome the defective that existing scroll compressor exists, and provide a kind of capacity regulating device of scroll compressor of new structure, technical problem to be solved is to make it can adopt simple structure that the amount of the operation fluid of compression is regulated, thereby be suitable for practicality more, and have the value on the industry.
Another object of the present invention is to, a kind of capacity regulating device of scroll compressor is provided, technical problem to be solved is to make its compression volume after a little while, also can have certain efficient, thereby is suitable for practicality more.
The present invention compared with prior art has tangible advantage and beneficial effect.By above technological scheme as can be known, in order to reach aforementioned goal of the invention, major technique of the present invention thes contents are as follows:
The present invention proposes a kind of capacity regulating device of scroll compressor, comprises closed container, and it has enclosed space, and it is divided into the suction space and discharges the space; Fixedly spool and swing spool, they are positioned at above-mentioned closed container, and form compression volume by spool lap separately, and by both rotations operation fluid are compressed; Be communicated with valve, it runs through the said fixing spool and selectively is connected with the suction space with above-mentioned compression volume.
Above-mentioned connection valve comprises circuitous inflator, and it is fixedly forming in the spool, and by it compression volume is linked to each other with outside; Circuitous channel, it links to each other with above-mentioned circuitous inflator and forms to the suction space extending setting of above-mentioned closed container; Piston, it carries out the straight line back and forth movement along the internal surface of above-mentioned circuitous inflator, and above-mentioned circuitous channel is selectively sealed; The driven for opening and closing source, it links to each other with piston by plunger; The valve control device, it and above-mentioned driven for opening and closing source are electrical connected, and control the switching process in above-mentioned driven for opening and closing source.
Above-mentioned circuitous inflator be formed on said fixing spool operation fluid suction port the position to the position of this suction port form 180 ° of angles the position fixedly spool sidewall a bit on.
Above-mentioned driven for opening and closing source is that solenoid is advisable.
Have as mentioned above that the present invention of structure adopts simpler structure, the amount of the operation fluid of compression is regulated, therefore can reduce cost.
Via as can be known above-mentioned, the invention relates to a kind of capacity regulating device of scroll compressor, comprise closed container, its inside forms to be provided with enclosed space and to be divided into and sucks the space and discharge the space; Fixedly spool and swing spool, they are positioned at above-mentioned closed container inside, pass through the spool lap that had and form compression volume, and operation fluid is compressed; Be communicated with valve, it runs through fixedly spool, and above-mentioned compression volume is linked to each other with the suction space.Therefore, the amount that the present invention has regulated the operation fluid that will compress by simple structure, thereby reduce manufacture cost.
By technique scheme, the capacity regulating device of scroll compressor of the present invention has following advantage at least:
In the capacity regulating device according to scroll compressor of the present invention,, the amount of the operation fluid that compresses can be regulated, its cost can be reduced because of the fixing sidewall of spool has circuitous inflator and circuitous channel.
Also have, the present invention starts the driven for opening and closing source by solenoid, therefore can accurately control.
Also have, will make a circulation inflator and circuitous channel of the present invention is arranged on suction port from fixing spool below 180 ° in the angular range, and the operation fluid refluence before can compressing can be guaranteed the compression efficiency of compressor when low capacity is moved.
In sum, the capacity regulating device of the scroll compressor of special construction of the present invention adopts simple structure that the amount of the operation fluid of compression is regulated.Also have, the capacity regulating device compression volume of the scroll compressor of special construction of the present invention also can have the capacity regulating device of the scroll compressor of certain efficient after a little while.It has above-mentioned many advantages and use value, and in like product, do not see have similar structural design to publish or use and really genus innovation, no matter it structurally or bigger improvement all arranged on the function, have large improvement technically, and produced handy and practical effect, and more existing scroll compressor has the multinomial effect of enhancement, thus be suitable for practicality more, and have the extensive value of industry, really be a new and innovative, progressive, practical new design.
Above-mentioned explanation only is the general introduction of technical solution of the present invention, for can clearer understanding technological means of the present invention, and can be implemented according to the content of specification, below with preferred embodiment of the present invention and conjunction with figs. describe in detail as after.
Description of drawings
Fig. 1 is the sectional arrangement drawing of part capacity regulating device of the scroll compressor of prior art;
Fig. 2 is the part capacity regulating device embodiment's of a scroll compressor of the present invention sectional arrangement drawing;
Fig. 3 a is the operating state figure that the capacity regulating device of the embodiment of the invention cuts out circuitous channel;
Fig. 3 b is the bottom diagram at the mobile operation fluid in the bottom of the fixedly spool shown in Fig. 3 a;
The capacity regulating device of Fig. 4 a embodiment of the invention is opened the operating state figure of circuitous channel;
Fig. 4 b is the bottom diagram at the mobile operation fluid in the bottom of the fixedly spool shown in Fig. 4 a.
20: closed container 30: fixing spool
31: through plate 31a: exhaust port
33: sidewall 33a: through hole
33b: suction chamber 40: swing spool
41: swing spool lap 50: be communicated with valve
51: circuitous inflator 53: circuitous channel
55: piston 56: plunger
57: driven for opening and closing source 59: the valve control device
60: upper frame 70: power generating part
80: running shaft 90: the high low pressure separator disk
100: control valve assembly body 101: the countercurrent control valve door
SP: suction pipe DP: discharge tube
S1: suck space S 2: discharge the space
P: compression volume
Embodiment
Reach technological means and the effect that predetermined goal of the invention is taked for further setting forth the present invention, below in conjunction with accompanying drawing and preferred embodiment, its embodiment of capacity regulating device, structure, feature and the effect thereof of the scroll compressor that foundation the present invention is proposed, describe in detail as after.The part identical with the prior art constituting component uses same-sign to describe.
Fig. 2 is the embodiment's sectional arrangement drawing according to the part capacity regulating device of scroll compressor of the present invention.
As shown in the figure, closed container 20 comprises upper cap 21, shell 23 and lower cover (not shown), and also formation is provided with enclosed space.And the discharge tube DP of the operation fluid after a side of closed container 20 has the suction pipe SP that sucks outside operation fluid and discharges compression.
Operation fluid by above-mentioned suction pipe SP sucks compresses after the suction space S 1 of relatively low pressure, moves to discharge space S 2, discharges by discharge tube DP.
Fixedly spool 30, and it is positioned at the inside of closed container 20, comprise certain thickness through plate 31, sidewall 33 and fixing spool lap 35.
Wherein, above-mentioned central authorities through plate 31 have the exhaust port 31a that discharges the operation fluid after compressing.Above-mentioned sidewall 33 prolongs setting in above-mentioned bottom through plate 31 with certain-length and forms.The edge of above-mentioned sidewall 33 forms to be provided with installs the required penetration hole 33a of upper frame.From above-mentioned bottom, has the fixedly spool lap 35 that protrudes the involute shape that forms with above-mentioned sidewall 33 equal length in the inside of sidewall 33 through plate 31.Particularly, said fixing spool lap 35 is to launch to form involute curve at central part gradually with minimum diameter to enlarge its diameter, and links to each other with above-mentioned sidewall 33.
Swing spool 40, it be positioned at said fixing spool 30 lower ends and with 30 meshing connections of said fixing spool, and swing spool lap 41 with involute shape identical with said fixing rotating shaft lap 35, and combine with mutual 180 ° of phase differences with it, the space of crescent shape is divided into several compression volumes P simultaneously.Phase difference by this fixedly spool lap 35 and swing spool lap 41 is divided into suction space P1 and compression volume P2 with the diameter minimizing of the said reel lap 35,41 of involute shape and with above-mentioned compression volume P.
Particularly, because of above-mentioned phase difference, the suction chamber 33b that forms from the sidewall 33 of fixing spool 30 plays the effect of suction section P1 to the fixing compression volume P of the about angular range below 180 ° of involute shape of spool 30.On the contrary the involute shape from above-mentioned suction chamber 33b to fixing spool 30 about more than 180 ° the compression volume P of angular range at said fixing spool 35 with swing the effect of playing the compression section P2 that operation fluid is compressed under the meshing effect of spool 41.
Be communicated with valve 50, it runs through said fixing spool 30 and is communicated with selectively with above-mentioned compression volume P and suction space S 1, and it comprises circuitous inflator 51, circuitous channel 53, piston 55, plunger 56, driven for opening and closing source 57 and valve control device 59.
Wherein, circuitous inflator 51 is formed on a bit from above-mentioned suction chamber 33b to the sidewall 33 that staggers along the circumferencial direction certain distance.That is, above-mentioned circuitous inflator 51 runs through above-mentioned sidewall 33 with the direction shown in Fig. 3 a.
Above-mentioned plunger 56 57 prolongs and runs through above-mentioned closed container 20 and be provided with from above-mentioned driven for opening and closing source.That is, an end of above-mentioned plunger 56 links to each other with above-mentioned piston 55, and the other end links to each other with above-mentioned driven for opening and closing source 57, and makes above-mentioned piston carry out straight reciprocating motion according to the signal that is input to above-mentioned driven for opening and closing source 57.
Driven for opening and closing source 57 is arranged on the shell 23 of above-mentioned closed container 20.Above-mentioned driven for opening and closing source 57 can be arranged on the internal surface of above-mentioned shell 23, but because of the general compressor volume inside of the embodiment of the invention is narrow and small, so be arranged on the appearance edge of above-mentioned shell 23.
Therefore compressor inner structure is simpler has redundant space or makes the size decreases in driven for opening and closing source 57 be arranged on the internal surface of above-mentioned shell 23.
Use by connecting the solenoid structure of power supply operation in above-mentioned driven for opening and closing source 57.Only use said structure but be not restricted to, also can use if other valve has with the driven for opening and closing source 57 similar functions of present embodiment.
Running shaft 80, it is positioned at the central part of above-mentioned power generating unit 70, by above-mentioned power part 70 driven rotary.That is, the rotating force of above-mentioned rotary terminal 73 is sent to swing spool 40, running shaft 80 is pressed into fixing on above-mentioned rotary terminal 73, therefore be rotated simultaneously with above-mentioned rotary terminal 73.
Also have, high low pressure separator disk 90, it is positioned at the top of said fixing spool 30, and the inner space of above-mentioned closed container 20 is divided into discharge space S 2 and sucks space S 1.
Comprise the countercurrent control valve door in the control valve assembly body 100, it is positioned at the exhaust port 31a top of said fixing spool 30, can prevent to discharge the operation fluid adverse current after the compression in the space S 2 and goes into the inside of compression volume P.
Carry out following explanation to having the effect of the scroll compressor of structure as mentioned above.
Fig. 3 a is the phase diagram of closing circuitous inflator passage in the capacity regulating device of embodiments of the invention; Fig. 3 b is the bottom diagram at the mobile operation fluid in the bottom of the fixedly spool shown in Fig. 3 a; Fig. 4 a is the running state figure that the capacity regulating device of the embodiment of the invention is opened circuitous channel; Fig. 4 b is the bottom diagram at the mobile operation fluid in the bottom of the fixedly spool shown in Fig. 4 a.
As shown in the figure, after power generating unit 70 inserted power supplys, fixed terminal 71 and the interaction between the rotary terminal 73 of said fixing terminal 71 inside by above-mentioned power generating unit 70 made rotary terminal 73 rotations.The rotating force that produces is sent to running shaft 80, and above-mentioned running shaft 80 drives 40 rotations of swing spools, and to be the center with running shaft 80 carry out relative oscillating motion to fixing spool 30 with above-mentioned swing spool 40, produces the compression volume P of crescent shape continuously.Also have, above-mentioned compression volume P is more little the closer to the central part volume, and the operation fluid that sucks by suction pipe SP moves to the center of said fixing spool 30, and it is compressed.
Be provided with suction chamber 33b because of the outer surface of said fixing spool 30 forms, and form exhaust port 31a, institute suction operation fluid is compressed and discharge in central part.
Compression is carried out in the process, the countercurrent control valve door 101 of control valve assembly body 100 is opened exhaust port 31a because of action of pressure is moved upward, operation fluid flow to by exhaust port 31a and discharges space S 2, by high low pressure separator disk 90 and suck the outside that closed container 20 is separated and be discharged to through discharge tube DP to space S 1.Above-mentioned countercurrent control valve door 101 moves down when scroll compressor is out of service, thereby blocks above-mentioned exhaust port 31a, prevents the adverse current of operation fluid.
When running well, need the whole operation fluids that suck compression volume P be compressed and discharge, therefore according to capacity regulating device of the present invention, cut off the outflow pathway of operation fluid by circuitous inflator 51 and circuitous channel 53.By the temperature of systems control division (not shown) detection heat exchanger, think to send instruction to valve control device 59 in case of necessity, receive the instruction back and realize by the driven for opening and closing source circuitous valve 51 of 57 cut-outs.That is, block circuitous inflator 51, prevent that operation fluid is back to suction space S 1 from compression volume P thereby driven for opening and closing source 57 advances piston 55 by plunger 56.On the contrary, systems control division detects the temperature of heat exchanger, and to the instruction that 59 transmissions of valve control device need low capacity to move, valve control device 59 transmits signals to driven for opening and closing source 57, and compression volume P and suction space S 1 are communicated with.Particularly, the clearing signal of above-mentioned valve control device 59 is received and the plunger 56 of pulling back in above-mentioned driven for opening and closing source 57, above-mentioned piston 55 is retreated up to circuitous channel 53 open.Therefore compression volume P communicates with suction space S 1 by circuitous inflator 51 and circuitous channel 53.At this moment, the part operation fluid among the compression volume P, as Fig. 4 a and Fig. 4 b arrow indication adverse current to sucking space S 1, thereby the amount minimizing of the operation fluid that compresses by fixedly spool 30 and swing spool 40.The rotational speed of swing spool 40 is kept speed under normal circumstances in this process, can prevent that therefore the operation fluid excessive pressure of being discharged from reducing.
In compression volume P, be to suck the residing suction of operation fluid space P1 at first from the fixing about 180 ° of following scopes of angle of suction chamber 33b of spool 30.So a part of adverse current in the operation fluid that sucks space P1 is arrived suck space S 1 as mentioned above.Carry out adverse current if having about 180 ° of operation fluids, will reduce the compression efficiency of compressor with the compression volume P2 of upper angle from suction chamber 33b.
The technological innovation of the capacity regulating device of the scroll compressor of the present invention that above-mentioned structure like this constitutes all has many saving graces for technician of the same trade now, and the progressive that possesses skills really.
The above, it only is preferred embodiment of the present invention, be not that the present invention is done any pro forma restriction, though the present invention discloses as above with preferred embodiment, yet be not in order to limit the present invention, any those skilled in the art, in not breaking away from the technical solution of the present invention scope, when the technology contents that can utilize above-mentioned announcement is made a little change or is modified to the equivalent embodiment of equivalent variations, in every case be the content that does not break away from technical solution of the present invention, according to technical spirit of the present invention to any simple modification that above embodiment did, equivalent variations and modification all still belong in the scope of technical solution of the present invention.
Claims (4)
1, a kind of capacity regulating device of scroll compressor is characterized in that it comprises:
Closed container, it is formed with enclosed space, and this enclosed space is divided into the suction space and discharges the space;
Fixedly spool and swing spool, they are positioned at the inside of above-mentioned closed container, respectively have the spool lap, form compression volume by this spool lap, and compress operation fluid by both rotations; And
Be communicated with valve, it runs through the said fixing spool and above-mentioned compression volume is communicated with the suction space.
2, the capacity regulating device of scroll compressor according to claim 1 is characterized in that wherein said connection valve comprises:
Circuitous inflator, it fixedly is forming setting in the spool, runs through above-mentioned compression volume and fixing spool outside;
Circuitous channel, it is communicated in above-mentioned circuitous inflator and forms from the suction space extending setting of above-mentioned circuitous inflator to above-mentioned closed container;
Piston, it carries out back and forth movement along the internal surface of above-mentioned circuitous inflator, and above-mentioned circuitous channel is opened and closed selectively;
The driven for opening and closing source, it links to each other with above-mentioned piston by the plunger that starts above-mentioned piston; And
The valve control device, it and above-mentioned driven for opening and closing source are electrical connected, and control the switching in above-mentioned driven for opening and closing source.
3, the capacity regulating device of scroll compressor according to claim 2, it is characterized in that wherein said circuitous inflator be formed on the operation fluid that from the said fixing spool, forms suction port the position to the position of this suction port form 180 ° of angles the position fixedly spool sidewall a bit on.
4, the capacity regulating device of scroll compressor according to claim 3 is characterized in that wherein said driven for opening and closing source is made of solenoid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100965114A CN100540902C (en) | 2004-11-30 | 2004-11-30 | The capacity regulating device of scroll compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100965114A CN100540902C (en) | 2004-11-30 | 2004-11-30 | The capacity regulating device of scroll compressor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1782400A CN1782400A (en) | 2006-06-07 |
| CN100540902C true CN100540902C (en) | 2009-09-16 |
Family
ID=36772912
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100965114A Expired - Fee Related CN100540902C (en) | 2004-11-30 | 2004-11-30 | The capacity regulating device of scroll compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100540902C (en) |
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2004
- 2004-11-30 CN CNB2004100965114A patent/CN100540902C/en not_active Expired - Fee Related
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| Publication number | Publication date |
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| CN1782400A (en) | 2006-06-07 |
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Granted publication date: 20090916 Termination date: 20111130 |