CN1828058A - Vacuum preventing device for scroll compressor - Google Patents
Vacuum preventing device for scroll compressor Download PDFInfo
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- CN1828058A CN1828058A CN 200410096509 CN200410096509A CN1828058A CN 1828058 A CN1828058 A CN 1828058A CN 200410096509 CN200410096509 CN 200410096509 CN 200410096509 A CN200410096509 A CN 200410096509A CN 1828058 A CN1828058 A CN 1828058A
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Abstract
The invention relates to an anti-vacuum device of scroll compressor. Wherein, the high-vacuum part is detachably mounted on the fixing scroll of discharge cover, which is formed by a space part, a middle pressure channel, a cylinder, a piston and a spring. One end of said space part is connected to the adsorption space, while another end is sealed; the middle pressure channel connects the sealing end of space part into several compressing rooms to form the middle pressure compressing room; said cylinder comprises a discharge pressure channel to connect the middle part to the discharge space and the adsorption pressure channel to connect the space part to said adsorption space; said piston is inserted to the space part of cylinder for connecting or cutting the discharge pressure channel and adsorption pressure channel; and said spring is used to pressurize the sealing end via piston to connect the discharge pressure channel and the adsorption pressure channel.
Description
Technical field
The present invention relates to a kind of compressor, particularly relate to a kind of raising processability and assembling performance, thus can reduce operating cost scroll compressor prevent vacuum system (PREVENTIVE APPARATUSOF VACUUM COMPRESSION IN SCROLL COMPERSSOR).
Background technique
In general, compressor is the power conversion of machinery the compression energy of compressible fluid, thereby is divided into the formula of moving back and forth usually, Scroll, circle center type and wind vane formula.Scroll compressor is different with the formula that moves back and forth of utilizing the piston linear motion, and the same running shaft suction pressurized gas that utilizes with circle center type or wind vane formula is discharged again.
See also shown in Figure 1ly, it is the sectional arrangement drawing according to an embodiment of the scroll compressor of prior art.
As shown in the figure, according to the scroll compressor of prior art, it comprises: shell 10; Main structure 20 and service structure (not shown); Drive motor 30; Live axle 40; Spinning reel 50; Fixedly spool 60; Suck space S 1; High low pressure separating plate 70; Contrary valve assembly body 80; And high vacuum cut-out portion 90.Wherein, above-mentioned shell 10 possesses gas suction pipe SP and gas outlet pipe DP is arranged, the inner peripheral surface that above-mentioned main structure 20 and service structure (not shown) are fixed on shell 10 separately is both sides up and down, above-mentioned drive motor 30 is installed between main structure 20 and the service structure (not shown), above-mentioned live axle 40 is pressed into the center of above-mentioned drive motor 30, connect main structure 20, pass on the rotating force of drive motor 30, above-mentioned spinning reel 50 is combined on the live axle 40, be placed on main structure 20 above, said fixing spool 60 is attached on the spinning reel 50, in order to form multiple compressing chambers, be fixed on main structure 20 above, above-mentioned high low pressure separating plate 70 is combined in the fixedly back side of spool 60, its role is to, the internal separation of shell 10 is suction space S 1 and discharge space S 2, above-mentioned contrary valve assembly body 80 is combined in the fixedly back side of the hardboard portion 64 of spool 60, its role is to, prevent the back flow of gas that is discharged from, above-mentioned high vacuum cut-out portion 90 be arranged on spool 60 hardboard portion 64 in portion, its role is to, cut off the high vacuum of pressing chamber P when compressor stops.
On the above-mentioned spinning reel 50, when being equipped with rotatablely moving of spinning reel 50, the bottom can regulate the unbalanced balancer weight BW of rotation.
Be formed with the central part of the above-mentioned live axle 40 of vertical perforation, can be drawn into the oil of piling up the oil channel 41 of bottom, and be formed on to insert on the joining hole of headquarter 52 of underpart of above-mentioned spinning reel 50 and be combined with centrifugal 42 that is partial on above-mentioned live axle 40 upper end portions.
Then, be inserted with bearing 43 between headquarter 52 and centrifugal 42, thus the friction that can minimize when rotatablely moving to be produced.
Above-mentioned high low pressure separating plate 70 utilizes attachment screw 71 to be connected on the upper-end surface of fixing spool 60, and above-mentioned contrary valve assembly body 80 is by valve 82, and fixture 83 and attachment screw 81 are formed.
High vacuum cut-out portion 90 is by cylinder part 94; Piston 95; Spring 96 is formed.Wherein, said cylinder portion 94 forms to radial direction with certain depth on hardboard portion 64 sides of fixing spool 60, above-mentioned piston 95 is inserted into this cylinder part 94, its role is to, along with pressure difference is cut off discharge space S 2 or connection discharge space S 2 and sucked space S 1, above-mentioned spring 96 is arranged on a side of above-mentioned piston 95, its role is to, when pressing chamber P is in vacuum state, pushes this piston 95 and can allow discharge space 92 and suction space 91 be communicated with.
In addition, form so that tubular is circular when hint obliquely in cylinder part 94 fronts, thereby also form when the piston wherein that is inserted into 95 is hinted obliquely in the front with the circular end surface shape.
Then, for this piston 95 can slide sleekly, keeping small space between the outer circumferential face of the inner peripheral surface of cylinder 94 and piston 95.
The liner that unaccounted symbol 51 is spinning reels in the accompanying drawing, the 61st, the fixing liner of spool, the 62nd, suction port, the 63rd, exhaust port, the 98th, the stopper fixed plate, the 99th, fixing film trap, FR is the circulation road that sucks gas, LP is a suction passage.
So the running according to the prior art scroll compressor that constitutes is as follows:
Promptly, on drive motor 30, insert power supply, live axle 40 rotations, thereby will rotate to centrifugal distance to spinning reel 50, meanwhile, spinning reel 60 is fixedly forming multiple compressing chambers P between spool 60 and the cushion part 51,61, and this pressing chamber P is according to the continuous rotating motion of spinning reel 50, when move at the center, reduce volume, thereby discharge after sucking compression condensation agent gas.
At this moment, in the compressor normal operation, it is big that the strength that the pressure of the pressure ratio suction side of pressing chamber P and the elastic force of spring 96 combine is also wanted, therefore above-mentioned piston 95 is discharged pressure passageway 93 and is sucked pressure passageway 91 to crowded cut-out the in suction side, successfully discharges (shown in Fig. 2 a) so can prevent pressurized gas in the time of the adverse current of suction side.
On the contrary, compressor bleed or other improper high compression ratio running in, the influx of condensing agent gas obviously descends, the pressure of pressing chamber P and the pressure of suction side are much at one, so piston 95 is communicated with discharge pressure passageway 93 in the other direction and sucks pressure passageway 91 according to the recuperability of spring 96 when crowding, and by this passage 91,93, radicals by which characters are arranged in traditional Chinese dictionaries of discharging gas then prevent the high vacuumization (shown in Fig. 2 b) of pressing chamber P earlier when pressing chamber P sucks to the suction side adverse current.
But, aforesaid scroll compressor according to prior art prevent vacuum system, installation and processing is formed with passage 91 in the hardboard portion of fixing spool 60,92,93 cylinder part 94 so fixedly thickenings are understood by the hardboard portion 64 of spool 60, thereby selects operating cost to increase.
In addition because processing cylinder part 94 is difficult in the hardboard portion 64 of fixing spool 60, so produce bad possibility height, and if take place badly, must change fixedly spool 60 again.
This shows that above-mentioned existing compressor obviously still has inconvenience and defective, and demands urgently further being improved in structure and use.In order to solve the problem that 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 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, the vacuum system that prevents in the hope of the scroll compressor of founding a kind of new structure, can improve general existing 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 compressor exists, and provide a kind of new structure scroll compressor prevent vacuum system, technical problem to be solved is to make to prevent that but vacuum system is arranged on the position of medelling of easy processing channel, thereby is suitable for practicality more.
The object of the invention to solve the technical problems realizes by the following technical solutions.A kind of scroll compressor that proposes according to the present invention prevent vacuum system, it is characterized in that it comprises: shell; Fixing spool; Spinning reel; Discharge cap; And high vacuum cut-out portion; Wherein, above-mentioned shell connection is provided with gas suction pipe and gas outlet pipe, the said fixing spool is fixed on the inside of above-mentioned shell, above-mentioned spinning reel forms the multiple compressing chambers that is engaged on compression suction gas when being rotated on the said fixing spool, above-mentioned discharge cap is communicated with the above-mentioned gas discharge tube, and possess the discharge space of accommodating the exhaust port that is formed on the final pressing chamber is arranged, thereby sealing is arranged on the shell of fixing spool, above-mentioned high vacuum cut-out portion is arranged in the above-mentioned discharge cap, its role is to bleed or high compression ratio when running, a part of discharging gas to the suction space adverse current that is communicated with the above-mentioned gas suction pipe, thereby prevent high vacuumization; For preventing in the vacuum system of this scroll compressor, high vacuum portion removably be fixed in the discharge cap fixedly above the spool, it is by space portion; Middle pressure passageway; Cylinder part; Piston; And spring is formed; Wherein, one end of above-mentioned space portion is communicated to and sucks on the space, the other end is closed, pressure passageway is communicated with the closed end of space portion on the intermediate compression chambers that forms middle pressure in multiple compressing chambers in the middle of above-mentioned, the intermediate portion that said cylinder portion possesses the handlebar space portion is communicated with is discharging the discharge pressure passageway on the space and space portion is being communicated with suction pressure passageway on above-mentioned suction space, above-mentioned piston is inserted on the space portion of cylinder part, connect or cut-out discharge pressure passageway and suction pressure passageway, above-mentioned spring utilizes piston to be pressurized to the closed end of space portion, discharges pressure passageway and sucks pressure passageway thereby can connect.
The object of the invention to solve the technical problems also can be applied to the following technical measures to achieve further.
Aforesaid scroll compressor prevent vacuum system, it also comprises: piston; Spring; Wherein, above-mentioned piston is inserted into cylinder part, connects or cut-out discharge pressure passageway and suction pressure passageway, and above-mentioned spring utilizes piston to be pressurized to the closed end of space portion, discharges pressure passageway and suction pressure passageway thereby can connect.
Aforesaid scroll compressor prevent vacuum system, the unlatching end of wherein said cylinder part is inserted and is fixed with the stopper that is formed with above-mentioned suction pressure passageway when supporting above-mentioned spring.
Aforesaid scroll compressor prevent vacuum system, wherein said cylinder part also is provided with row pressure passage and row pressure valve; Wherein, above-mentioned row pressure passage is discharged to the condensing agent of cylinder part inside on the space portion of discharge cap, this row pressure passage of above-mentioned row pressure valve opening and closing.
Aforesaid scroll compressor prevent vacuum system, wherein said cylinder part and fixedly also possess between the junction plane of spool sealed member is arranged.
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, the vacuum system that prevents of scroll compressor of the present invention comprises shell; Fixing spool; Spinning reel; Discharge cap; And high vacuum cut-out portion.Wherein, above-mentioned shell connection is provided with gas suction pipe and gas outlet pipe, the said fixing spool is fixed on the inside of above-mentioned shell, above-mentioned spinning reel is characterised in that, formation is engaged on the multiple compressing chambers of compression suction gas when being rotated moving the rotation on the said fixing spool, above-mentioned discharge cap is communicated with the above-mentioned gas discharge tube, and possess the discharge space of accommodating the exhaust port that is formed on the final pressing chamber is arranged, thereby sealing is arranged on the shell of fixing spool, above-mentioned high vacuum cut-out portion is arranged in the above-mentioned discharge cap, its role is to bleed or high compression ratio when running, a part of discharging gas to the suction space adverse current that is communicated with the above-mentioned gas suction pipe, thereby prevent high vacuumization.For preventing in the vacuum system of this scroll compressor, high vacuum portion removably be fixed in the discharge cap fixedly above the spool, by space portion; Middle pressure passageway; Cylinder part; Piston; Spring is formed.Wherein, one end of above-mentioned space portion is communicated to and sucks on the space, the other end is closed, pressure passageway is communicated with the closed end of space portion on the intermediate compression chambers that forms middle pressure in multiple compressing chambers in the middle of above-mentioned, the intermediate portion that said cylinder portion possesses the handlebar space portion is communicated with is discharging the discharge pressure passageway on the space and space portion is being communicated with suction pressure passageway on above-mentioned suction space, above-mentioned piston is inserted on the space portion of cylinder part, its role is to, connect or cut-out discharge pressure passageway and suction pressure passageway, the effect of above-mentioned spring is, utilize piston to be pressurized to the closed end of space portion, discharge pressure passageway and suck pressure passageway thereby can connect.
Via as can be known above-mentioned, the invention relates to a kind of vacuum system that prevents of scroll compressor, high vacuum portion removably be fixed in the discharge cap fixedly above the spool, it is by space portion; Middle pressure passageway; Cylinder part; Piston; And spring is formed.Wherein, one end of above-mentioned space portion is communicated to and sucks on the space, the other end is closed, pressure passageway is communicated with the closed end of space portion on the intermediate compression chambers that forms middle pressure in multiple compressing chambers in the middle of above-mentioned, the intermediate portion that said cylinder portion possesses the handlebar space portion is communicated with is discharging the discharge pressure passageway on the space and space portion is being communicated with suction pressure passageway on above-mentioned suction space, above-mentioned piston is inserted on the space portion of cylinder part, its role is to connect or cut off and discharge pressure passageway and suck pressure passageway, the effect of above-mentioned spring is to utilize piston to be pressurized to the closed end of space portion, discharges pressure passageway and sucks pressure passageway thereby can connect.Scroll compressor prevents that vacuum system is set to removably medelling on the fixedly spool upper-end surface in discharge cap, thereby in preventing the component parts of vacuum system, be merely able to alternately poor starting or out of order parts, thereby the processing facility of cylinder and passage when can reduce expense, and be arranged on the fewer discharge cap of operating cost burden, thereby unnecessary processing cylinder and passage on fixing spool are so can keep the fixedly intensity of spool to a certain extent.
By technique scheme, the vacuum system that prevents of scroll compressor of the present invention has following advantage at least:
1, according to the vacuum system that prevents of scroll compressor of the present invention, scroll compressor prevents that vacuum system is set to removably medelling on the fixedly spool upper-end surface in discharge cap, thereby in preventing the component parts of vacuum system, be merely able to alternately poor starting or out of order parts, thereby can reduce expense.
2, in addition, the processing of cylinder and passage is convenient, and is arranged on the fewer discharge cap of operating cost burden, thus on fixing spool unnecessary processing cylinder and passage, so can keep the fixedly intensity of spool to a certain extent.
In sum, the scroll compressor of special construction of the present invention prevent vacuum system, 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 compressor has the multinomial effect of enhancement, thereby 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.
The specific embodiment of the present invention is provided in detail by following examples and accompanying drawing thereof.
Description of drawings
Fig. 1 is the sectional arrangement drawing according to an embodiment of the scroll compressor of prior art.
Fig. 2 a is the sectional arrangement drawing that the normal state that prevents vacuum system of the A part of Fig. 1 operates.
Fig. 2 b is the sectional arrangement drawing that the abnormal condition that prevents vacuum system of the A part of Fig. 1 operates.
Fig. 3 is the sectional arrangement drawing according to a scroll compressor part of the present invention.
Fig. 4 a is the sectional arrangement drawing that prevents the normal operation of vacuum system of the present invention.
Fig. 4 b is the sectional arrangement drawing that prevents the improper running of vacuum system of the present invention.
Fig. 5 is the sectional arrangement drawing that prevents another variation of vacuum system according to of the present invention.
1: shell 5: spinning reel
6: fixing spool 6C: exhaust port
6d: middle pressure passageway 7: discharge cap
9: the high vacuum cut-out 9a of portion: cylinder part
9b: piston 9c: spring
9d: stopper 9e: suck pressure passageway
9f: row pressure passage 9g: discharge pressure passageway
9h: space portion DP: gas outlet pipe
SP: gas suction pipe S1: suck the space
S2: discharge space P: pressing chamber
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, the scroll compressor that foundation the present invention is proposed prevent its embodiment of vacuum system, structure, feature and effect thereof, describe in detail as after.
See also shown in Figure 3ly, it is the sectional arrangement drawing according to a scroll compressor part of the present invention; See also shown in Fig. 4 a, it is the sectional arrangement drawing that prevents the normal operation of vacuum system of the present invention; See also shown in Fig. 4 b, it is the sectional arrangement drawing that prevents the improper running of vacuum system of the present invention.
As shown in the figure, scroll compressor according to the present invention prevents vacuum system, and fixedly the 6e of hardboard portion of spool 6 is equipped with discharge cap 7, and in this discharge cap 7, fixedly the upper-end surface of spool 6 removably is provided with high vacuum cut-out portion 9 with substantially horizontal.
In Fig. 3,6 are fixing spool, and it comprises 6e of hardboard portion and liner 6a.Wherein, the above-mentioned hardboard 6e of portion has certain thickness, and the shape with involute forms above-mentioned liner 6a in the side of the above-mentioned hardboard 6e of portion, and forms the pressing chamber 6a of pairing left and right with the liner of spinning reel 5.
The 6e of hardboard portion is formed with exhaust port 6c, above-mentioned exhaust port 6C connects final pressing chamber P, its role is to, discharge in the discharge space of the discharge cap that will tell about pressurized gas rearwards, pressure passageway 6d in the middle of the side of above-mentioned exhaust port 6c is formed with, it connects intermediate compression chambers P, can penetrate into the cylinder part 9a that the back will be told about.
Among Fig. 3,7 is discharge cap, it is in order to seal the exhaust port of accommodating spool 6, its inside possesses certain volume ground and discharges space S 2, be fixedly installed on the hardboard portion 6e back side of said fixing spool 6, and, cylinder part 9a is set with substantially horizontal for the bottom of from then on discharging space S 2 can be communicated to above-mentioned middle pressure passageway 6d.
In addition, discharge cap 7 utilizes materials such as aluminium, is easier to be shaped to suitable by technologies such as casting processs.
On the above-mentioned spinning reel 5, the bottom is equipped with the balancer weight BW that can regulate unbalanced rotation when the rotatablely moving of spinning reel 5.
For the central part that vertically connects live axle 4 can adsorb the oil that is deposited in the bottom, be formed with oil channel 4a, and be formed on the 5b of the headquarter attachment hole of above-mentioned spinning reel 5 underparts, insertion is combined with can centrifugal centrifugal 4b to the upper end portion of above-mentioned live axle 4.
Then, be inserted with spring 4c between the above-mentioned 5b of headquarter and centrifugal 4b, thereby can minimize the friction that produces when rotatablely moving.
Contrary valve assembly body v, with contrary valve V2, fixture V3 and attachment screw V1 form, and are arranged on to be communicated with the fixedly exhaust port upper end of the final pressing chamber P of spool 6.
Among Fig. 3,9 is high vacuum cut-out portion, and 9a is a cylinder part.
In addition, the space portion 9h that is formed on the cylinder part 9a with substantially horizontal opens on the end, insertion is fixed with possesses the stopper 9d that has for the suction pressure passageway 9e in the suction space that can be communicated with shell 1, the row pressure passage 9f of pressure passageway 6d in the middle of the closed end of above-mentioned space portion 9h is formed with and prolongs, and on the midfeather that sucks pressure passageway 9e and middle pressure passageway 9f, connect the discharge pressure passageway 9g that is formed with the discharge space 92 that can be communicated with shell 1.
Then, 9b is a piston, and piston 9b can form with proper circle shape end face or other multiple end face shape as the 9a of said cylinder portion.
9c is a spring, spring 9c forms with compression coil spring, it is characterised in that, according to the pressure of pressurized gas, piston 9b discharges pressure passageway 9g in order to cut off during normal operation, and is crowded to opening the end from the space portion of cylinder part 9a, when opposite high compression ratio operates, to discharge pressure passageway 9g and suck pressure passageway 9e in order to be communicated with, piston 9b is shifted onto the closed end of above-mentioned space portion, it has certain epistasis.
Below, describe the above-mentioned effect that prevents vacuum system in detail according to scroll compressor of the present invention.
Promptly, when on drive motor 3, inserting power supply, live axle 4 rotation and make the spinning reel rotation, therefore to the liner 5a that is formed on spinning reel 5 and fixedly the pressing chamber P between the liner 6a of spool 6 suck condensing agent gas, compression and discharging when moving to the center gradually.
At this moment, when the compressor normal operation, as Fig. 4 a, high pressure compressed gas is by middle pressure passageway 6d, 9f flow into cylinder part 9a, and this high pressure compressed gas be when can both overcome the resistivity of suction 6 side pressure of cylinder part 9a of relatively low pressure and spring 9c, piston is extruded into the suction side cuts off and discharge pressure passageway 9g, so prevented discharge gas, by discharging pressure passageway to the suction space of shell 1 adverse current to the discharge of the discharge space of discharge cap.
On the contrary, when the compressor high compression ratio operated or bleeds, the pressure of suction space S 1 and the pressure of pressing chamber P were almost equal, thereby compressed spring 9c pushes piston 9b open when expanding.In this process, be communicated with when discharging pressure passageway 9g and sucking pressure passageway 9e, high pressure is discharged one one of gas by discharging after pressure passageway 9g flow into the inside of cylinder part 9a, be discharged to the suction space of shell 1 again by suction pressure passageway 9e, be lowered pressure by this pressurized gas that sucks the space and be drawn into pressing chamber P again, thereby prevent pressing chamber P evacuation or high compression ratio (shown in Fig. 4 b) in advance.
In addition, Fig. 5 is according to the sectional arrangement drawing that prevents another variation of vacuum system of the present invention.For the closed end and the discharge space S 2g that can be communicated with the 9h of cylinder space portion, be formed with the 2nd and discharge pressure passageway 9k, the utilization of cylinder part 9a upper-end surface is closed the 2nd discharge pressure passageway 9k with the row pressure valve assembly body DV that attachment screw DV1 is connected with row pressure valve DV2 and fixture DV3.
At this moment, in the multiple compressing chambers, the gas that compresses among the intermediate compression chambers P that presses in the middle of be formed with by the situation of high compression under, opens row pressure valve DV2 and can discharge by the gas of high compression, thereby the startup that can stabilize prevents vacuum system to discharging space S 2.
The technological innovation that prevents vacuum system 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 (5)
1, a kind of scroll compressor prevent vacuum system, it is characterized in that it comprises:
Shell;
Fixing spool;
Spinning reel;
Discharge cap; And
High vacuum cut-out portion;
Wherein, above-mentioned shell connection is provided with gas suction pipe and gas outlet pipe, the said fixing spool is fixed on the inside of above-mentioned shell, above-mentioned spinning reel forms the multiple compressing chambers that is engaged on compression suction gas when being rotated on the said fixing spool, above-mentioned discharge cap is communicated with the above-mentioned gas discharge tube, and possess the discharge space of accommodating the exhaust port that is formed on the final pressing chamber is arranged, thereby sealing is arranged on the shell of fixing spool, above-mentioned high vacuum cut-out portion is arranged in the above-mentioned discharge cap, its role is to bleed or high compression ratio when running, a part of discharging gas to the suction space adverse current that is communicated with the above-mentioned gas suction pipe, thereby prevent high vacuumization;
For preventing in the vacuum system of this scroll compressor, high vacuum portion removably be fixed in the discharge cap fixedly above the spool, it is by space portion; Middle pressure passageway; Cylinder part; Piston; And spring is formed; Wherein, one end of above-mentioned space portion is communicated to and sucks on the space, the other end is closed, pressure passageway is communicated with the closed end of space portion on the intermediate compression chambers that forms middle pressure in multiple compressing chambers in the middle of above-mentioned, the intermediate portion that said cylinder portion possesses the handlebar space portion is communicated with is discharging the discharge pressure passageway on the space and space portion is being communicated with suction pressure passageway on above-mentioned suction space, above-mentioned piston is inserted on the space portion of cylinder part, connect or cut-out discharge pressure passageway and suction pressure passageway, above-mentioned spring utilizes piston to be pressurized to the closed end of space portion, discharges pressure passageway and sucks pressure passageway thereby can connect.
2, scroll compressor according to claim 1 prevent vacuum system, it is characterized in that it also comprises:
Piston;
Spring;
Wherein, above-mentioned piston is inserted into cylinder part, connects or cut-out discharge pressure passageway and suction pressure passageway, and above-mentioned spring utilizes piston to be pressurized to the closed end of space portion, discharges pressure passageway and suction pressure passageway thereby can connect.
3, scroll compressor according to claim 2 prevent vacuum system, the unlatching end that it is characterized in that wherein said cylinder part is inserted and is fixed with the stopper that is formed with above-mentioned suction pressure passageway when supporting above-mentioned spring.
4, scroll compressor according to claim 1 prevent vacuum system, it is characterized in that wherein said cylinder part also is provided with row pressure passage and row pressure valve; Wherein, above-mentioned row pressure passage is discharged to the condensing agent of cylinder part inside on the space portion of discharge cap, this row pressure passage of above-mentioned row pressure valve opening and closing.
5, scroll compressor according to claim 1 prevent vacuum system, it is characterized in that wherein said cylinder part and fixedly also possess between the junction plane of spool that sealed member is arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100965097A CN100516536C (en) | 2005-03-04 | 2005-03-04 | Vacuum preventing device for scroll compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100965097A CN100516536C (en) | 2005-03-04 | 2005-03-04 | Vacuum preventing device for scroll compressor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1828058A true CN1828058A (en) | 2006-09-06 |
| CN100516536C CN100516536C (en) | 2009-07-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100965097A Expired - Fee Related CN100516536C (en) | 2005-03-04 | 2005-03-04 | Vacuum preventing device for scroll compressor |
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| Country | Link |
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| CN (1) | CN100516536C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101457749B (en) * | 2007-12-14 | 2012-07-04 | 台达电子工业股份有限公司 | Fan testing device |
-
2005
- 2005-03-04 CN CNB2004100965097A patent/CN100516536C/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101457749B (en) * | 2007-12-14 | 2012-07-04 | 台达电子工业股份有限公司 | Fan testing device |
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| Publication number | Publication date |
|---|---|
| CN100516536C (en) | 2009-07-22 |
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