CN1201116A - Vortex compressor - Google Patents
Vortex compressor Download PDFInfo
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- CN1201116A CN1201116A CN 98108593 CN98108593A CN1201116A CN 1201116 A CN1201116 A CN 1201116A CN 98108593 CN98108593 CN 98108593 CN 98108593 A CN98108593 A CN 98108593A CN 1201116 A CN1201116 A CN 1201116A
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- stator
- suction
- permanent magnet
- rotor
- scroll
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Abstract
The deterioration of a compressor and the noise caused by the increasing of channel resistance can be prevented through reducing the channel resistance which is met by suction gas. Through forming a suction channel, one end portion of the inserting side of the suction portion of the suction channel is communicated with the suction side of a compression space, which is formed in the following way: enabling fluid which is sucked through the suction portion to flow in the suction direction of the compression space on the end portion of the compression space on the suction side, and enabling the suction flowing direction of the fluid which is sucked into the compression space to match with the suction direction of the compression space, thereby reducing the channel resistance met by the suction fluid.
Description
The present invention relates to a kind of scroll compressor, as the coolant compressor in refrigerator or the air-conditioning system, comprise spiral fixed scroll and cooperate with fixed scroll and divide the scroll of shaking that forms compression volume that the volume of this compression volume can change by shaking the revolution motion that scroll relative fixed scroll does not rotation.
The scroll compressor of prior art such as Japan Patent disclose the structure that flat 7-97995 communique is disclosed, have sealed department that suction portion and discharge tube are installed, by be arranged on the live axle that drive unit rotated in the closed shell, the eccentric shaft that axially stretches out from the rear surface of live axle, be installed on the eccentric shaft shake scroll, with shake scroll and cooperate and divide the fixed scroll that forms compression volume and reach and support the also fixing bearing of said fixing scroll of live axle rotationally.In by the formed compression volume of the cooperation of shaking scroll and fixed scroll, refrigeration agent sucks and discharges from its center from its exterior periphery direction.
In this compressor, one of factor that reduces compressor efficiency is the channel resistance that gas ran into that sucks.More specifically, owing to be compressed the long-pending restriction of body, the gas that sucks by suction portion must change a sharp turn before being inhaled into compression volume, make the gas of suction be subjected to powerful resistance, caused the amount of gas that sucks compression volume to reduce.Can determine in addition, when producing this turning resistance in sucking the path of gas, this energy can cause noise and vibration, and when the fluid that sucks gas greatly the time (for example, when suction gas is in liquid condition or comprises a large amount of lubricant oil), this noise and vibration can become serious problems.
Therefore, the purpose of this invention is to provide a kind of scroll compressor, it can reduce to suck the channel resistance that gas runs into, thereby reduces the loss and the caused noise of channel resistance because of increasing of compressor operating.
So scroll compressor according to the present invention comprises: the closed shell that is provided with suction portion and discharge tube; Be configured in the drive unit in the described closed shell; The live axle that from described drive unit, stretches out; Have the main bearing of an end of supporting described live axle rotationally and be fixed in bearing on the described closed shell; The eccentric shaft that stretches out prejudicially vertically from an end face of described live axle; Shake scroll, have and be rotatably mounted shaking bearing and shaking scrollwork of eccentric shaft from the spirality that this opposite side that shakes bearing stretches out vertically; Have with the described scrollwork that shakes and cooperate fixed scroll, in this compression volume, the described scroll of shaking is clipped between this fixed scroll and the bearing, the described scroll of shaking can freely be shaken with the fixed scroll that forms compression volume; Also be formed with suction passage, this suction passage is being communicated with between the suction side of one end, inserting side of described suction portion and described compression volume, and forms by this way: the suction direction by described compression volume flows in the compression volume end of suction side to make the fluid that sucks by suction portion.
Therefore, according to the present invention, by forming the suction passage that is communicated with between the suction side of the suction portion end of inserting side and compression volume, and form this suction passage by this way: make the fluid that sucks by suction portion mobile by the suction direction in compression space in the suction side of compression volume, the inhalation flow direction of the fluid of feasible suction compression volume is consistent with the suction direction of compression volume, thereby has reduced the channel resistance that fluid ran into that sucks.
More specifically, suction passage forms outwardly point-blank along the end tangent direction of shaking scrollwork; Suction portion inserts along suction passage.This just makes that pressing straight line by the fluid of suction portion suction flows into compression volume, has greatly reduced channel resistance.
In addition, by constituting suction portion by suction pipe and the suction pipe assembly department that can insert suction passage inside dearly, can prevent to be used to seal sealed member between suction pipe assembly department and the fixed scroll as the heating of an O type ring when welding suction pipe and the suction pipe assembly department, thereby avoid the poor sealing between suction pipe assembly department and fixed scroll.
And then, suction portion can install by the direction of approximate vertical with respect to closed shell, suction passage forms along a curve, and stretches to the compression volume end of suction side from the suction portion end of suction side, the suction direction of the compression volume of the compression volume end of this curve formation suction side.Like this, even this situation that often runs into when suction portion forms by almost vertical direction with respect to closed shell, because the fluid that sucks by suction portion flows into compression volume along a curve, therefore can reduce channel resistance.In addition, do not shake scrollwork because fluid does not directly impact, thereby can reduce vibration and noise.
Above-mentioned and other characteristic of the present invention and the advantage that accompanies, by hereinafter in conjunction with the accompanying drawings to the description of most preferred embodiment, for those skilled in the art can be more cheer and bright.Wherein:
Fig. 1 is the cross-sectional view of the scroll compressor of one embodiment of the invention;
Fig. 2 is the schematic representation of the first embodiment of the present invention;
Fig. 3 is the schematic representation of the second embodiment of the present invention.
Narrate most preferred embodiment of the present invention with reference to the accompanying drawings.
As shown in Figure 1, in scroll compressor 1, closed shell 2 comprises cylinder shell 4, upper cover part 7A and lower cover portion 7B, cylinder shell 4 has the suction portion that is made of suction pipe 3 and suction pipe assembly department 3A, upper cover part 7A covers at the upper open end of cylinder shell 4 and the discharge portion 5 that is made of discharge tube and power source terminal 6 is installed, and lower cover portion 7B covers the lower open end at cylinder shell 4.Closed shell 2 accommodates drive unit 8 and compressing mechanism 9.
The drive unit 8 that is contained in the closed shell 2 comprises: be fixed in the inner circumferential surface of closed shell 2 and be wound with field coil 10 stator 11, have the rotor 12 of permanent magnet and fixedly connected with rotor 12 spools 13, permanent magnet has some magnetic poles on the surface that faces stator 11, coil 10 suitable excitations make stator 11 by excitation, produce rotating magnetic field and allow rotor 12 rotate.
The upper end portion that connects the axle 13 of drive unit 8 and compressing mechanism 9 (below will describe in detail) is supporting rotationally that by means of the bearing 15 that is installed on the supporting plate 14 its underpart is being supported rotationally by the main bearing 17 that is installed in the through hole 18 that (below will describe in detail) on the bearing 16.In addition, be positioned on the axle 13 with the balancer weight 19 of shaking scroll 30 maintenance rotary balances.And then spiral chute 20 is formed on axle 13 the surface with main bearing 17 sliding contacts, and relatively rotates direction and tilt with the groove of lubricated this slide contact zone.Form eccentric shaft 21 and oily pilot hole 23 vertically in the end of axle 13, eccentric shaft 21 becomes eccentric pass to tie up to axially with the axle center with axle 13 to stretch out, and oily pilot hole 23 is communicated with the hole that forms at the front end near spiral chute 20 with between the hole that the end face of eccentric shaft 21 forms.
Compressing mechanism 9 comprises: be fixed on the bearing 16 on all sides in the closed shell 2; Do by means of the rotation of axle 13 not rotation (hereinafter claim " swing movement ") revolution motion shake scroll 30; And with shake scroll 30 and cooperate to form the fixed scroll 50 of compression volume 40.
In bearing 16, the central part that passes bearing vertically forms through hole 18, is rotatably supporting axle 13 by the main bearing 17 that is installed in the through hole 18.In addition, be equipped with the lid 24 of the slewing area that surrounds balancer weight 19, form cooling channel 26 at an end of the leg portion 25 of lid 24 at the upper surface of bearing 16.
Oil sump 27 is formed at the top at bearing 16, and the upper zone of oil sump 27 constitutes the high-pressure space 28 that is communicated with discharge tube 5.Oil sump 27 is communicated with oily space 72 by oily passage 73, and oily space 72 is formed by the bottom of axle 13, bearing 16, main bearing 17 and stuffing box bearing 80 divisions that hereinafter will narrate.
In addition, be formed with bearing side cross recess 70 at the bottom surface of bearing 16, the bearing side claw 29A of partition ring 29 is installed in this cross recess 70, is used to stop the rotation of shaking scroll 30 as mentioned below.Near and the coolant channel hole 71 that formation is communicated with coolant channel 26 bearing 16 sidepieces.
On a side surface that shakes scroll 30 of bearing, be formed be used for suit eccentric shaft 21 shake bearing 31 and with partition ring 29 shake that vortex side claw 29B matches shake vortex side cross recess 32.Be inserted into eccentric shaft 21 that shakes in the bearing 31 and the internal separation of shaking bearing and form bearing space 33.And what this shook scroll 30 is formed with the spiral helicine scrollwork 34 that shakes on a side surface of fixed scroll.
Form fixed scroll 51 on fixed scroll 50, this fixed scroll 51 is by cooperating the formation compression volume with the scrollwork 34 that shakes that shakes scroll 30.Near the outer peripheral surface of fixed scroll 50, form the suction pipe 52 that is connected with suction portion 3, constitute the suction side of compression volume 40.Central part in fixed scroll 50 forms tap hole 53, constitutes the discharge side of compression volume 40.In addition, at medium position, form the bypass channel 54 of compression volume 40 and 60 connections of discharge space near compression volume 40.
In addition, at the opening portion of fixed scroll tap hole 53, by the fixing supporting plate 63 of screw, this dunnage 63 is used for supporting and keeps one-way valve 61 and open or close the safety valve 62 of bypass passageways 54.In the discharge side of tap hole 53, by lid 74 divisions formation discharge space.This is discharged space 60 and is communicated with high-pressure space 28 by coolant channel hole 71 and coolant channel 26
In scroll compressor as constituted above, the rotation of axle 13 makes shakes scroll 30 and makes swing movement with respect to fixed scroll 50, changing the volume of compression volume 40, compression by suck refrigeration agent that space 52 sucks and by tap hole 53 with its discharge.
In addition, the lubricant oil that is stored in the oil sump 27 flows through first oil circuit on the one hand, promptly passes spiral chute 20 from oily space 72 and upwards flows, and oil sump 27 is also returned in the sliding contact surface of lubricated main bearing 18 and axle 13; On the other hand, because the pressure reduction between high-pressure space 28 and the suction space 52, lubricant oil is flowed through second oil circuit, promptly pass oily pilot hole 23 and enter bearing space 33 from oily space 72, upwards flow with lubricated eccentric shaft 21 and the sliding contact surface of shaking bearing 31, further lubricated thrust guiding element 76, before arriving suction space 52, lubricated again partition ring 29 and cross recess 32,70.Above-mentioned thrust guiding element 76 is that revolution is shaken sliding contact surface between scroll 30 and the bearing 16 in the space 25, and the revolution scope of shaking scroll is formed in revolution space 25.
Sucking the lubricant oil in space 52 and refrigeration agent from entering of second oil circuit mixes and is inhaled into, lubricate the sealing of compression volume 40 and shake the contact surface of scroll 30 and fixed scroll 50, after lubricant oil and refrigeration agent enter high-pressure space 28 together, before returning oil sump 27 with lubricant oil and refrigeration agent separately.
In second oil circuit, stuffing box bearing portion 80 with oily space 72 and revolution space 75 each other wiper seal separate, high-pressure space 28 and the pressure reduction that sucks between the space 52 make lubricant oil flow to bearing space 33 from oily space 72 through oily pilot hole 23 more reliably.
As shown in Figures 2 and 3, in above-mentioned scroll compressor 1, the compression path of compression volume 40 comprises refrigeration agent is directly sucked wherein the first compression path 40A, refrigeration agent is sucked the second compression path 40B, bypass channel 90 wherein and shakes the space 91 that scroll is moved therein by suction passage 52 from suction passage 52.Should point out that bypass channel 90 is communicated with suction passage 52 by the passage (not shown) that has changed direction.
First embodiment as shown in Figure 2, suction passage 52 forms point-blank in the outer circumference portion tangent direction of shaking scrollwork 34, and pipe assembly department 3A inserts suction passage 52 dearly.That is to say, in shaking the swing movement process of scroll 30, in the outer circumference portion of shaking vortex volume 34 and farthest a bit of fixed scroll 51 distances, the suction end of the first compression path 40A of compression volume 40 faces pipe assembly department 3A opening, so, in the induction stroke process of the first compression path 40A, refrigeration agent flows into compression volume 40 point-blank, and the channel resistance that refrigeration agent runs into is reduced to minimum.When shaking the most close fixed scroll 51 of scrollwork 34, refrigeration agent flows to the second compression path 40B from space 91, so also reduced channel resistance in the second compression path 40B.
Zone between pipe assembly department 3A and the fixed scroll 50 is by 92 sealings of O type ring.In first embodiment, owing between welding zone, suction pipe 3 and O type ring 92 threes of pipe assembly department 3A, bigger distance is arranged, can prevent heating in the process of welding suction pipe 3 and pipe assembly department 3A and cause the distortion of O type ring 92.
In second embodiment shown in Figure 3, as prior art, pipe assembly department 3A vertically is installed in the closed shell.Suction passage 52, comprise along the outer side surface 93 of first curve (circular arc of a long radius) bending and along the crooked inner side surface 94 of second curve (circular arc of a minor radius), and bend towards the open end of the first compression path 40A from the end of pipe assembly department 3A, so that the distance that the excircle end of shaking scrollwork 34 is in from fixed scroll 51 to the excircle end of shaking scrollwork 34 is the longest state.
Take this, as first embodiment, refrigeration agent can flow directly into compression volume 40 at the open end of the first compression path 40A, has reduced channel resistance.In addition, in a second embodiment,, can reduce channel resistance and noise owing to can prevent the direct impact of refrigeration agent to the excircle end of shaking scrollwork 34.So,, can prevent Kaman (Karman ' s) eddy current by forming the madial wall 94 of arc.
As mentioned above, according to the present invention,, can reduce refrigeration agent and flow into the channel resistance that compression volume ran into, so improved the operation of compressor because the inflow direction of refrigeration agent can be provided with along the suction direction of compression volume.
In addition, because the pipe assembly department can insert suction passage dearly, the O type ring that is used between sealed pipe assembly department and the fixed scroll can be installed away from welding region, so guarantee to have good sealing between pipe assembly department and fixed scroll.
And then, by crooked suction passage, can prevent from that refrigeration agent from directly impacting to shake the end of scrollwork, thereby reduce noise and vibration.
Claims (18)
1, a kind of scroll compressor comprises:
Closed shell;
Have suction pipe and suction pipe assembly department and be arranged on suction portion on the described closed shell;
Comprise the discharge portion that is configured in the discharge tube on the described closed shell;
Be configured in the drive unit in the described closed shell;
The live axle that from described drive unit, stretches out;
Bearing has the main bearing of an end of supporting described live axle rotationally, and is fixed on the described closed shell;
The eccentric shaft that stretches out prejudicially vertically from an end face of described live axle;
Shake scroll, have and be rotatably mounted shaking bearing and shaking scrollwork of eccentric shaft from the spirality that this opposite side that shakes bearing stretches out vertically;
Have with the described scrollwork that shakes and cooperate fixed scroll, be fixed on the described bearing,, the described scroll of shaking can freely be shaken, it is characterized in that so that the described scroll of shaking is clipped between this fixed scroll and the bearing with the fixed scroll that forms compression volume,
Also be formed with suction passage, this suction passage is being communicated with between the suction side of one end, inserting side of described suction portion and described compression volume, and forms by this way: the suction direction by described compression volume flows in the compression volume end of suction side to make the fluid that sucks by suction portion.
2, scroll compressor according to claim 1 is characterized in that: described suction passage forms point-blank along described outer end tangent direction of shaking scrollwork; Described suction portion inserts along suction passage.
3, scroll compressor according to claim 1, it is characterized in that: described suction portion vertically inserts substantially with respect to described closed shell, described suction passage forms along a curve, and this curve constitutes the suction direction of the compression volume between a side end of the compression volume of the suction portion end of inserting side and suction side.
4, scroll compressor according to claim 1 is characterized in that: also comprise the seal arrangement that is used to seal between described suction pipe assembly department and the described fixed scroll.
5, scroll compressor according to claim 4 is characterized in that: described seal arrangement is made of O type ring.
6, scroll compressor according to claim 2 is characterized in that: also comprise the seal arrangement that is used to seal between described suction pipe assembly department and the described fixed scroll.
7, scroll compressor according to claim 6 is characterized in that: described seal arrangement is made of O type ring.
8, scroll compressor according to claim 3 is characterized in that: also comprise the seal arrangement that is used to seal between described suction pipe assembly department and the described fixed scroll.
9, scroll compressor according to claim 8 is characterized in that: described seal arrangement is made of O type ring.
10, scroll compressor according to claim 1, it is characterized in that: described drive unit is a brushless electric machine, comprise an axle that is fixed in stator on the described closed shell inner peripheral surface, has the rotor of permanent magnet and fixedly connected with described rotor, described stator is wound with field coil, and described permanent magnet has some magnetic poles facing on the surface of described stator.
11, scroll compressor according to claim 2, it is characterized in that: described drive unit is a brushless electric machine, comprise an axle that is fixed in stator on the described closed shell inner peripheral surface, has the rotor of permanent magnet and fixedly connected with described rotor, described stator is wound with field coil, and described permanent magnet has some magnetic poles facing on the surface of described stator.
12, scroll compressor according to claim 3, it is characterized in that: described drive unit is a brushless electric machine, comprise an axle that is fixed in stator on the described closed shell inner peripheral surface, has the rotor of permanent magnet and fixedly connected with described rotor, described stator is wound with field coil, and described permanent magnet has some magnetic poles facing on the surface of described stator.
13, scroll compressor according to claim 4, it is characterized in that: described drive unit is a brushless electric machine, comprise an axle that is fixed in stator on the described closed shell inner peripheral surface, has the rotor of permanent magnet and fixedly connected with described rotor, described stator is wound with field coil, and described permanent magnet has some magnetic poles facing on the surface of described stator.
14, scroll compressor according to claim 5, it is characterized in that: described drive unit is a brushless electric machine, comprise an axle that is fixed in stator on the described closed shell inner peripheral surface, has the rotor of permanent magnet and fixedly connected with described rotor, described stator is wound with field coil, and described permanent magnet has some magnetic poles facing on the surface of described stator.
15, scroll compressor according to claim 6, it is characterized in that: described drive unit is a brushless electric machine, comprise an axle that is fixed in stator on the described closed shell inner peripheral surface, has the rotor of permanent magnet and fixedly connected with described rotor, described stator is wound with field coil, and described permanent magnet has some magnetic poles facing on the surface of described stator.
16, according to claim 7 kind of scroll compressor, it is characterized in that: described drive unit is a brushless electric machine, comprise an axle that is fixed in stator on the described closed shell inner peripheral surface, has the rotor of permanent magnet and fixedly connected with described rotor, described stator is wound with field coil, and described permanent magnet has some magnetic poles facing on the surface of described stator.
17, scroll compressor according to claim 8, it is characterized in that: described drive unit is a brushless electric machine, comprise an axle that is fixed in stator on the described closed shell inner peripheral surface, has the rotor of permanent magnet and fixedly connected with described rotor, described stator is wound with field coil, and described permanent magnet has some magnetic poles facing on the surface of described stator.
18, scroll compressor according to claim 9, it is characterized in that: described drive unit is a brushless electric machine, comprise an axle that is fixed in stator on the described closed shell inner peripheral surface, has the rotor of permanent magnet and fixedly connected with described rotor, described stator is wound with field coil, and described permanent magnet has some magnetic poles facing on the surface of described stator.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP110245/97 | 1997-04-11 | ||
| JP11024597A JPH10288173A (en) | 1997-04-11 | 1997-04-11 | Scroll compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1201116A true CN1201116A (en) | 1998-12-09 |
Family
ID=14530800
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98108593 Pending CN1201116A (en) | 1997-04-11 | 1998-04-09 | Vortex compressor |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JPH10288173A (en) |
| KR (1) | KR19980080998A (en) |
| CN (1) | CN1201116A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107002685A (en) * | 2014-10-27 | 2017-08-01 | 丹佛斯商用压缩机公司 | Equipped with the scroll compressor of the moving leader for improving discharge chambe filling |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6364643B1 (en) * | 2000-11-10 | 2002-04-02 | Scroll Technologies | Scroll compressor with dual suction passages which merge into suction path |
| JP2008002312A (en) * | 2006-06-21 | 2008-01-10 | Matsushita Electric Ind Co Ltd | Scroll compressor |
| JP2011236861A (en) * | 2010-05-13 | 2011-11-24 | Panasonic Corp | Scroll compressor |
| CN102953990A (en) * | 2012-11-27 | 2013-03-06 | 大连三洋压缩机有限公司 | Full-closed vertical scroll compressor with motor placed over pump body |
| WO2021198732A1 (en) * | 2020-04-01 | 2021-10-07 | Siam Compressor Industry Co., Ltd. | Scroll compressor |
-
1997
- 1997-04-11 JP JP11024597A patent/JPH10288173A/en active Pending
-
1998
- 1998-04-02 KR KR1019980011562A patent/KR19980080998A/en not_active Application Discontinuation
- 1998-04-09 CN CN 98108593 patent/CN1201116A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107002685A (en) * | 2014-10-27 | 2017-08-01 | 丹佛斯商用压缩机公司 | Equipped with the scroll compressor of the moving leader for improving discharge chambe filling |
| CN107002685B (en) * | 2014-10-27 | 2019-05-03 | 丹佛斯商用压缩机公司 | Equipped with the scroll compressor of the moving leader for improving discharge chambe filling |
| US10605244B2 (en) | 2014-10-27 | 2020-03-31 | Danfoss Commercial Compressors S.A. | Scroll compressor provided with an orbiting guiding portion for improving the filling of the compression chambers |
Also Published As
| Publication number | Publication date |
|---|---|
| KR19980080998A (en) | 1998-11-25 |
| JPH10288173A (en) | 1998-10-27 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |