CN108425845B - Scroll compressor - Google Patents
Scroll compressor Download PDFInfo
- Publication number
- CN108425845B CN108425845B CN201810466755.9A CN201810466755A CN108425845B CN 108425845 B CN108425845 B CN 108425845B CN 201810466755 A CN201810466755 A CN 201810466755A CN 108425845 B CN108425845 B CN 108425845B
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- CN
- China
- Prior art keywords
- vortex
- groove
- sealing strip
- scroll
- ventilation
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 238000007789 sealing Methods 0.000 claims abstract description 99
- 238000009423 ventilation Methods 0.000 claims abstract description 37
- 230000004323 axial length Effects 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 8
- 230000006835 compression Effects 0.000 description 17
- 238000007906 compression Methods 0.000 description 17
- 239000003507 refrigerant Substances 0.000 description 3
- 230000003068 static effect Effects 0.000 description 2
- 238000004378 air conditioning Methods 0.000 description 1
- 230000001174 ascending effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000013022 venting Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
- F04C18/02—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents
- F04C18/0207—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents both members having co-operating elements in spiral form
- F04C18/0215—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents both members having co-operating elements in spiral form where only one member is moving
- F04C18/0223—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents both members having co-operating elements in spiral form where only one member is moving with symmetrical double wraps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
- F04C18/02—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents
- F04C18/0207—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents both members having co-operating elements in spiral form
- F04C18/0246—Details concerning the involute wraps or their base, e.g. geometry
- F04C18/0269—Details concerning the involute wraps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C27/00—Sealing arrangements in rotary-piston pumps specially adapted for elastic fluids
- F04C27/001—Radial sealings for working fluid
- F04C27/003—Radial sealings for working fluid of resilient material
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Rotary Pumps (AREA)
Abstract
The invention discloses a scroll compressor, which comprises an movable scroll and a fixed scroll, wherein scroll grooves are formed in the end faces of scroll rings of the movable scroll and the fixed scroll, the cross section of each scroll groove is rectangular, sealing strips are arranged in the scroll grooves, the height of each sealing strip is lower than the depth of each scroll groove, the sealing strips are elastic pieces, ventilation grooves are formed in the back surfaces of the sealing strips along the axial direction of the sealing strips, and outer expansion side walls are formed on the two radial sides of each ventilation groove and can be in interference contact with the two side walls of each scroll groove after the outer expansion side walls are expanded. According to the scroll compressor, the structure of the sealing strip is optimized, the sealing strip is jacked up, and the outer expansion side walls of the sealing strip are in close contact with the two side walls of the scroll groove, so that the radial gap between the sealing strip and the scroll groove is filled, the sealing effect of the end face of the scroll disk is improved, and the efficiency of the compressor is improved.
Description
Technical Field
The present invention relates to a scroll compressor, and more particularly, to an end surface sealing structure of a scroll thereof.
Background
The scroll compressor has the characteristics of high efficiency, small volume, light weight, low noise, simple structure and the like, and is widely used in air conditioning and refrigerating units, and has become one of the main directions of compressor development. The scroll compressor mainly comprises two similar scroll plates, namely an movable scroll plate and a fixed scroll plate, which are matched together at an angle of 180 degrees to form a compression cavity of the compressor.
At present, it is proposed in the art that vortex grooves 4 'are formed in the end faces of vortex rings of an movable vortex disc 1' and a fixed vortex disc 2', the vortex grooves 4' are formed along the direction of the vortex rings, two ends of each vortex groove 4 'are not opened, a floating sealing strip 3' is arranged in each vortex groove 4 ', when a compressor moves, high-pressure refrigerant generated by the head of the vortex ring is flushed into the vortex grooves 4', the floating sealing strip 3 'is jacked up, the front face of the sealing strip 3' is contacted with the bottom of the matched vortex ring, and the end face sealing effect between the movable vortex disc 1 'and the fixed vortex disc 2' is achieved, as shown in fig. 6 to 8.
Although this structure can play a certain sealing role, there is an unavoidable gap between the sealing strip 3 'and the vortex groove 4' in the radial direction, when the gap is too large or uneven, the high-pressure refrigerant leaks slightly from the two sides of the sealing strip to the low-pressure side, the high-pressure and low-pressure on the two sides of the vortex ring are in series, resulting in the reduction of the efficiency of the compressor, and when severe, the front surface and the back surface of the sealing strip 3 'cannot form a pressure difference, the sealing strip 3' cannot be jacked up, and the compressor cannot form an end surface seal. In addition, because the temperature from the head to the tail of the sealing strip of the vortex disc has a large difference, the radial gaps of the vortex groove 4 'and the sealing strip 3' are inconsistent in each section, so that the head of the vortex ring leaks, the tail of the vortex ring cannot be effectively jacked, and the efficiency of the compressor is reduced.
Therefore, it is desirable to further optimize the sealing structure to enhance the sealing effect of the scroll end face.
Disclosure of Invention
The invention aims to provide a scroll compressor, which solves the problems caused by radial clearance between a sealing strip and a scroll groove.
In order to achieve the above purpose, the invention adopts the following technical scheme:
The utility model provides a scroll compressor, it is including moving vortex dish and quiet vortex dish, moves vortex dish, the vortex ring terminal surface of quiet vortex dish has all been seted up the vortex groove, and the transversal rectangle of personally submitting of vortex groove is provided with the sealing strip in the vortex groove, and the degree of depth of highly being less than of sealing strip is the vortex groove, and the sealing strip is the elastic component and its back has seted up the recess of ventilating along its axial, and the radial both sides of recess of ventilating are formed with the outer lateral wall that expands, after expanding the lateral wall and can with the both sides wall interference contact of vortex groove.
The vortex groove is formed along the direction of the vortex ring, the tail end of the vortex groove is closed, the head end of the vortex groove is provided with a ventilation channel, one end of the ventilation channel is communicated with the central high-pressure cavity, and the other end of the ventilation channel is communicated with a ventilation groove of the sealing strip in the vortex groove.
The ventilation channel is arranged in a semicircle at the position of the arc-shaped head of the vortex ring, the straight edge of the semicircle is arranged on the inner side surface of the arc-shaped head of the vortex ring and is communicated with the central high-pressure cavity, and the arc edge of the semicircle is communicated with the outer side surface of the arc-shaped head of the vortex ring to form a closed wall and is communicated with the vortex groove. The phenomenon that the first compression cavity and the second compression cavity are possibly communicated is avoided.
Wherein, the tail end of sealing strip closely laminates with the tail end of vortex groove. And after the sealing strip is jacked, the high-pressure medium is prevented from leaking from the tail end.
Wherein the axial length of the sealing strip is basically consistent with the length of the vortex groove. The axial direction is free from redundant clearance grooves, high-pressure medium is introduced into the closed ventilation grooves through the ventilation channels, high-pressure medium loss is very small, the head part to the tail part of the sealing strip can be uniformly jacked up, the front surface of the sealing strip is more reliably attached to the bottom surface of the vortex disc, and the sealing effect of the end surface of the vortex disc is improved to the greatest extent.
The front width of the sealing strip is slightly smaller than the width of the vortex groove. The sealing strip is prevented from being blocked when ascending.
When the high-pressure medium is not introduced, the width of the back surface of the sealing strip is slightly smaller than the width of the vortex groove. So that when the high-pressure medium is not introduced, the sealing strip is normally retracted.
The cross section of the ventilation groove can be any one of triangle, trapezoid or semicircle, or other outward expansion shapes.
Wherein the depth of the vent groove is about half the height of the sealing strip.
In summary, compared with the prior art, the vortex compressor has the beneficial effects that the structure of the sealing strip is optimized, so that the ventilation groove is formed in the back surface of the vortex compressor, the outer expansion side walls are arranged on the two sides of the sealing strip, the head to the tail of the sealing strip can be jacked up uniformly when a high-pressure medium enters the back surface of the sealing strip, the outer expansion side walls of the sealing strip are expanded to be in close contact with the two side walls of the vortex groove, the radial gap between the sealing strip and the vortex groove is filled, the loss of the high-pressure medium in one sealed ventilation groove is very small, the front surface of the sealing strip is more reliably tightly attached to the bottom of the vortex ring, the sealing effect of the end surface of the vortex disc is improved to the greatest extent, and the efficiency of the vortex compressor is improved.
Drawings
FIG. 1 is an assembled schematic view of a fixed scroll and seal strip of a scroll compressor provided by an embodiment of the present invention;
FIG. 2 is a cross-sectional view at A-A in FIG. 1;
FIG. 3 is an assembled cross-sectional view of a fixed scroll and an orbiting scroll of a scroll compressor provided by an embodiment of the present invention;
fig. 4 is an enlarged view at B in fig. 3;
FIG. 5 is a schematic diagram showing the cooperation of the moving scroll and the stationary scroll in FIG. 3;
FIG. 6 is a schematic view of the assembly of a prior art fixed scroll and seal;
FIG. 7 is a cross-sectional view at C-C in FIG. 6;
Fig. 8 is an enlarged sectional view of the assembly of a fixed scroll and an orbiting scroll in the prior art.
In fig. 1-5:
1-an orbiting scroll; 11-a movable scroll; 2-a fixed scroll; 21-static vortex ring; 22-vortex grooves; 23-ventilation channels; 24-closing the wall; 3, sealing strips; 31-venting grooves; 32-flaring sidewalls; 4-a first compression chamber; 5-a second compression chamber;
In fig. 6-8:
1' -moving scroll; 2' -fixed scroll; 3' -sealing strip; 4' -vortex grooves; 5' -concave.
Detailed Description
The technical scheme of the invention is further described below by the specific embodiments with reference to the accompanying drawings.
Referring to fig. 1-5, this embodiment provides a scroll compressor, which mainly includes two similar scroll plates, namely a movable scroll plate 1 and a fixed scroll plate 2, wherein the parameters of the spiral line of the spiral rings of the movable scroll plate 1 and the fixed scroll plate 2 are the same, the phase angle difference is 180 °, and after the two are assembled in a matched manner, a plurality of pairs of sealed crescent volume cavities, namely compression cavities, are formed, the cavity close to the central exhaust hole is the central high-pressure cavity with the highest pressure, or is called a first compression cavity 4, and two crescent volume cavities adjacent to the periphery of the first compression cavity 4 are second compression cavities 5.
The working principle is as follows: when the eccentric shaft pushes the base circle center of the movable scroll 1 to do circular orbit motion around the base circle center of the fixed scroll 2, the closed volume cavities are correspondingly enlarged or reduced, thereby achieving the purposes of gas suction, compression and gas exhaust. The low-pressure gas enters the suction cavity from the suction hole opening on the fixed scroll or the peripheral gap of the movable scroll, and is discharged from the discharge hole opening in the center of the fixed scroll 2 after being compressed.
The structure of the movable scroll 1 and the structure of the fixed scroll 2 are basically the same, when the end faces are sealed, the movable scroll 11 of the movable scroll 1 and the end face of the fixed scroll 21 of the fixed scroll 2 are provided with scroll grooves, sealing strips are arranged in the scroll grooves, when the movable scroll 1 is assembled in a matched mode, the sealing strips of the movable scroll 1 are attached to the bottom face of the fixed scroll 2, and the sealing strips of the fixed scroll 2 are attached to the bottom face of the movable scroll 1.
The non-orbiting scroll 2 will be described in detail by way of example.
The vortex groove 22 of the fixed vortex plate 2 is formed along the direction of the fixed vortex ring 21, the cross section of the vortex groove 22 is rectangular, the vortex groove 22 is internally provided with the sealing strip 3, and the height of the sealing strip 3 is slightly lower than the depth of the vortex groove 22.
The sealing strip 3 is an elastic piece, the back of the sealing strip 3 is provided with vent grooves 31 along the axial direction of the sealing strip, the width of the front face of the sealing strip 3 is smaller than the width of the vortex groove 22, the cross section of the vent grooves 31 on the back face of the sealing strip 3 can be any one of triangle, trapezoid or semicircle, or other outward expansion shapes, the vent grooves 31 are preferably arranged into trapezoid, the outward expansion side walls 32 are formed on the two radial sides of the vent grooves 31, when the sealing strip 3 is not filled with high-pressure medium, the distance between the outward expansion side walls 32 is slightly smaller than the width of the vortex groove 22, the depth of the vent grooves 31 is about half of the height of the sealing strip 3, and when the sealing strip 3 is jacked up, the vent grooves 31 do not exceed the end face of the vortex groove 22, and medium leakage at the tail end is avoided.
The axial length of the sealing strip 3 is consistent with that of the vortex groove 22, no redundant clearance groove exists in the axial direction, the tail end of the vortex groove 22 is closed, the head end of the vortex groove 22 is provided with a ventilation channel 23, and the ventilation channel 23 communicates the central high-pressure cavity with a ventilation groove 31 of the sealing strip 3 in the vortex groove 22.
It should be noted that, in the prior art, the scroll heads of the two scrolls are generally arc-shaped, and are directly configured as concave surfaces 5' (as shown in fig. 6), so that the arrangement that the central high-pressure cavity is communicated with the ventilation groove may cause the first compression cavity 4 and the second compression cavity 5 to be in series during compression, and leakage exists.
Therefore, the present embodiment proposes that the ventilation channel 23 is arranged in a semicircle shape according to the arc-shaped head of the vortex ring, the straight edge of the semicircle is arranged on the inner side surface of the arc-shaped head of the static vortex ring 21 and is communicated with the central high pressure cavity, and the arc edge of the semicircle is communicated with the outer side surface of the arc-shaped head of the static vortex ring 21 and is provided with the sealing wall 24 and is communicated with the vortex groove 22. The existence of the sealing wall 24 can effectively prevent the first compression cavity 4 from being communicated with the second compression cavity 5, and improve the efficiency of the compressor.
The high-pressure medium is introduced into the ventilation groove 31 through the ventilation channel 23, the high-pressure medium in the embodiment refers to high-pressure refrigerant, the back surface of the sealing strip 3 is stressed and jacked, meanwhile, the outer expansion side wall 32 is stressed and expanded to be in interference contact with two side walls of the vortex groove 22, so that a closed medium channel is formed, the loss of the high-pressure medium is extremely small, the high-pressure medium can smoothly reach the tail end from the head end, the head part to the tail part of the sealing strip 3 can be jacked uniformly, the front surface of the sealing strip 3 is more reliably attached to the bottom surface of the vortex disc, and the sealing effect of the end surface of the vortex disc is improved to the maximum extent.
The scroll compressor has at least the following characteristics:
1) The bottom of the sealing strip is provided with the ventilation groove, so that the back surface of the sealing strip is pressed smoothly, the head part to the tail part of the sealing strip can be jacked up uniformly, and the overall sealing effect is better;
2) The outer expansion side walls on two sides of the sealing strip are slightly expanded after being pressed, so that the sealing strip is sealed with the radial line of the vortex groove, the loss of a high-pressure medium in the sealed ventilation groove is very little, and the front surface of the sealing strip is more reliably tightly attached to the bottom of the vortex disc;
3) The semicircular ventilation channel ensures that the outer side of the head part of the vortex ring is reserved with a certain wall thickness, and the ventilation channel is connected with the ventilation groove on the back surface of the sealing strip, so that the phenomenon that the first compression cavity and the second compression cavity are communicated in series is avoided, and the efficiency of the compressor is improved.
In summary, above-mentioned scroll compressor is through optimizing the structure of sealing strip for ventilation groove and both sides have the outer side wall that expands have been seted up to its back, make high-pressure medium get into more smooth and easy when the sealing strip back, sealing strip head to afterbody can evenly by the jack-up, the outer side wall of expanding of sealing strip simultaneously is expanded, with the both sides wall in close contact of vortex groove, the radial clearance between sealing strip and the vortex groove has been filled, high-pressure medium is few in a confined ventilation groove loss, make the sealing strip openly with the more reliable subsides of vortex ring bottom tightly, furthest's improvement vortex dish terminal surface seal's effect, thereby the efficiency of compressor has been improved.
The above embodiments merely illustrate the basic principles and features of the present invention, and the present invention is not limited to the above examples, but can be variously changed and modified without departing from the spirit and scope of the present invention, which is within the scope of the present invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (7)
1. The utility model provides a scroll compressor, includes moves vortex dish (1) and quiet vortex dish (2), move vortex dish (1), the vortex ring terminal surface of quiet vortex dish (2) all has seted up vortex groove (22), the transversal rectangle of personally submitting of vortex groove (22), be provided with sealing strip (3) in vortex groove (22), the height of sealing strip (3) is less than the degree of depth of vortex groove (22), its characterized in that,
The sealing strip (3) is an elastic piece, the back surface of the sealing strip is provided with a ventilation groove (31) along the axial direction of the sealing strip, outer expansion side walls (32) are formed on the two radial sides of the ventilation groove (31), and the outer expansion side walls (32) can be in interference contact with the two side walls of the vortex groove (22) after being expanded;
The front width of the sealing strip (3) is smaller than the width of the vortex groove (22);
When the sealing strip (3) is not filled with high-pressure medium, the distance between the outer expansion side walls (32) is slightly smaller than the width of the vortex groove (22), and the depth of the ventilation groove (31) is half of the height of the sealing strip (3), so that when the sealing strip (3) is jacked up, the ventilation groove (31) does not exceed the end face of the vortex groove (22).
2. The scroll compressor of claim 1, wherein: the vortex groove (22) is formed along the direction of the vortex ring, the tail end of the vortex groove is closed, the head end of the vortex groove is provided with a ventilation channel (23), one end of the ventilation channel (23) is communicated with the central high-pressure cavity, and the other end of the ventilation channel is communicated with the ventilation groove (31) of the sealing strip (3) in the vortex groove (22).
3. The scroll compressor of claim 2, wherein: the ventilation channel (23) is arranged in a semicircular shape at the position of the arc-shaped head part of the vortex ring, the straight edge of the semicircular shape is arranged on the inner side surface of the arc-shaped head part of the vortex ring and is communicated with the central high-pressure cavity, and the arc edge of the semicircular shape is communicated with the outer side surface of the arc-shaped head part of the vortex ring to form a sealing wall (24) and is communicated with the vortex groove (22).
4. A scroll compressor as claimed in claim 3, wherein: the tail end of the sealing strip (3) is tightly attached to the tail end of the vortex groove (22).
5. The scroll compressor of claim 1, wherein: the axial length of the sealing strip (3) is consistent with the length of the vortex groove (22).
6. The scroll compressor of claim 1, wherein: when high-pressure medium is not introduced, the width of the back surface of the sealing strip (3) is smaller than the width of the vortex groove (22).
7. The scroll compressor of claim 1, wherein: the cross section of the ventilation groove (31) is any one of triangle, trapezoid or semicircle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810466755.9A CN108425845B (en) | 2018-05-16 | 2018-05-16 | Scroll compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810466755.9A CN108425845B (en) | 2018-05-16 | 2018-05-16 | Scroll compressor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108425845A CN108425845A (en) | 2018-08-21 |
| CN108425845B true CN108425845B (en) | 2024-07-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810466755.9A Active CN108425845B (en) | 2018-05-16 | 2018-05-16 | Scroll compressor |
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| Country | Link |
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| CN (1) | CN108425845B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113482920B (en) * | 2021-08-09 | 2023-03-24 | 珠海格力节能环保制冷技术研究中心有限公司 | Scroll sealing device, scroll compressor, and refrigeration device |
| CN113482921B (en) * | 2021-08-09 | 2023-03-24 | 珠海格力节能环保制冷技术研究中心有限公司 | Scroll sealing device, scroll compressor, and refrigeration device |
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|---|---|---|---|---|
| JP2000329081A (en) * | 1999-05-20 | 2000-11-28 | Fujitsu General Ltd | Scroll type compressor |
| CN208203568U (en) * | 2018-05-16 | 2018-12-07 | 上海加冷松芝汽车空调股份有限公司 | A kind of screw compressor |
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| US4415317A (en) * | 1981-02-09 | 1983-11-15 | The Trane Company | Wrap element and tip seal for use in fluid apparatus of the scroll type |
| JPH0763175A (en) * | 1993-08-25 | 1995-03-07 | Kobe Steel Ltd | Scroll compressor |
| JPH0893668A (en) * | 1994-09-20 | 1996-04-09 | Tokico Ltd | Scroll fluid machinery |
| KR100304945B1 (en) * | 1998-12-23 | 2002-01-15 | 구자홍 | Scroll Compressor with oil control structure |
| CN2856498Y (en) * | 2005-09-13 | 2007-01-10 | 比亚迪股份有限公司 | Vortex disk of vortex compressor |
| JP5115842B2 (en) * | 2007-10-02 | 2013-01-09 | 有限会社スクロール技研 | Scroll fluid machinery |
| CN201401332Y (en) * | 2009-03-20 | 2010-02-10 | 安徽东风机电科技股份有限公司 | Improved axial sealing device for static and dynamic scroll plates of scroll compressor |
| CN202431525U (en) * | 2012-01-05 | 2012-09-12 | 广东美芝制冷设备有限公司 | Vortex disc of vortex compressor |
| JP2014136985A (en) * | 2013-01-16 | 2014-07-28 | Panasonic Corp | Scroll type compressor |
| EP2980408A4 (en) * | 2013-03-29 | 2016-12-21 | Johnson Controls-Hitachi Air Conditioning Tech (Hong Kong) Ltd | Scroll compressor |
| JP2017067036A (en) * | 2015-10-01 | 2017-04-06 | サンデン・オートモーティブコンポーネント株式会社 | Scroll Type Fluid Machine |
| CN205365160U (en) * | 2016-02-23 | 2016-07-06 | 厦门松芝汽车空调有限公司 | A overhead type air conditioner for new forms of energy passenger train |
| JP2018009544A (en) * | 2016-07-15 | 2018-01-18 | サンデン・オートモーティブコンポーネント株式会社 | Scroll Type Fluid Machine |
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| JP2000329081A (en) * | 1999-05-20 | 2000-11-28 | Fujitsu General Ltd | Scroll type compressor |
| CN208203568U (en) * | 2018-05-16 | 2018-12-07 | 上海加冷松芝汽车空调股份有限公司 | A kind of screw compressor |
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| Publication number | Publication date |
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| CN108425845A (en) | 2018-08-21 |
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