WO2023125810A1 - Compresseur - Google Patents

Compresseur Download PDF

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Publication number
WO2023125810A1
WO2023125810A1 PCT/CN2022/143401 CN2022143401W WO2023125810A1 WO 2023125810 A1 WO2023125810 A1 WO 2023125810A1 CN 2022143401 W CN2022143401 W CN 2022143401W WO 2023125810 A1 WO2023125810 A1 WO 2023125810A1
Authority
WO
WIPO (PCT)
Prior art keywords
scroll
compressor
shielding member
lubricating oil
end plate
Prior art date
Application number
PCT/CN2022/143401
Other languages
English (en)
Chinese (zh)
Inventor
孙玉松
张喜双
Original Assignee
丹佛斯（天津）有限公司
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from CN202111681130.2A external-priority patent/CN116412127A/zh
Priority claimed from CN202123450147.5U external-priority patent/CN217354741U/zh
Application filed by 丹佛斯（天津）有限公司 filed Critical 丹佛斯（天津）有限公司
Publication of WO2023125810A1 publication Critical patent/WO2023125810A1/fr

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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
    • 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
    • F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
    • F04C29/02—Lubrication; Lubricant separation

Definitions

  • the present disclosure relates to the technical field of compressors.
  • the gaseous refrigerant to be compressed from the air inlet is usually mixed with liquid refrigerant (in fact, the gas to be compressed and the liquid refrigerant are different forms of the same substance), since the liquid refrigerant cannot be compressed, Once a large amount of liquid refrigerant is sucked in, it will cause scroll damage.
  • the purpose of the embodiments of the present disclosure is to provide a compressor that can improve the reliability of the compressor, for example, prevent liquid refrigerant from directly entering the compression cavity of the scroll assembly, so as to avoid damage to the scroll assembly.
  • a compressor comprising:
  • the housing has an air inlet
  • the first scroll and the second scroll are arranged in the casing to form a scroll assembly, and a compression cavity for compressing the medium is defined between the first scroll and the second scroll;
  • a motor arranged in the housing, used to drive the first scroll to rotate along its axis of rotation, and the first scroll to drive the second scroll to rotate;
  • the shielding member is arranged between the air inlet and the scroll assembly.
  • the shielding member is disposed at least between a portion of the scroll assembly corresponding to the air inlet and the air inlet.
  • the shielding member has a wall structure, and the shielding member is arranged outside at least a part of the outer peripheral surface of the scroll assembly.
  • the shielding member has an equal-diameter cylindrical wall structure.
  • the shielding member has a variable-diameter cylindrical wall structure such that the shielding member is shaped to conform to at least a portion of the outer peripheral surface of the scroll assembly.
  • the shielding member has a semi-cylindrical wall structure and is arranged outside at least a part of the outer peripheral surface of the scroll assembly corresponding to the air inlet.
  • the blocking member is made of metal material or non-metal material.
  • the compressor further includes: a bracket; wherein, the shielding member further includes an edge portion, the edge portion is opened with a through hole, and the shielding member is fixed to the bracket through the edge portion.
  • the edge portion is provided with a notch.
  • the motor further includes: a stator and a rotor, the stator is in the bracket, and the outer periphery of the stator includes a flange; Securely fitted to the bracket to secure the shield member and stator together to the bracket.
  • the first scroll includes a first end plate and a first scroll wrap protruding from the first end plate in a first direction;
  • the second scroll includes a second end plate and a first scroll wrap protruding from the first end plate;
  • the second scroll wrap protrudes from the second end plate in a second direction opposite to the first direction, and the second scroll wrap cooperates with the first scroll wrap to form a compression cavity;
  • the bracket is located at a distance from the second scroll wrap One side of the first scroll;
  • the compressor further includes a driver, the driver is rotatably mounted on the bracket and is located on the side of the second scroll away from the first scroll, and the motor drives the second scroll through the driver.
  • a scroll rotates, and the first scroll drives the second scroll to rotate.
  • the first end plate of the first scroll further includes an outer edge portion, the orthographic projection of the shielding member on the first end plate is located on the outer edge portion, and the distance between the shielding member and the outer edge portion There is a first gap between them; wherein, the compressor further includes: a first refrigerant flow path, along which the refrigerant enters the compression cavity from the air inlet through the first gap; and a second refrigerant flow path, Refrigerant enters the compression chamber from the intake port through the second gap along the second refrigerant flow path.
  • the compressor further includes: a second refrigerant flow path along which the refrigerant passes from the air inlet through the second The second gap enters the compression chamber.
  • a hollow passage is formed in the driving member, and a fixed shaft fixed to the bracket is arranged in the hollow passage, the fixed shaft has an axial inner hole and a transverse through hole connected to the axial inner hole, and oiled The bolt is arranged in the axial inner hole of the fixed shaft and connected to the second scroll; wherein the compressor further includes: a first lubricating oil flow path along which the lubricating oil passes from the oiling bolt through the shaft Flow into the inner hole and the transverse through hole between the lower end of the driving part and the bracket; the second lubricating oil flow path, the lubricating oil flows from the oiling bolt into the upper end of the driving part and the second scroll along the second lubricating oil flow path between the hubs to lubricate the sliding bearings located therebetween; and a third lubricating oil flow path along which the lubricating oil flows from the oiling bolt through the edge of the end plate of the second scroll and into the first The compression chamber between the scroll and the
  • a shielding member is provided between the air inlet and the scroll assembly to prevent liquid refrigerant from directly entering the compression chamber of the scroll assembly, so as to avoid damage to the scroll assembly, thereby improving the compressor performance. reliability.
  • FIG. 1 is a schematic cross-sectional view of a compressor according to the present disclosure.
  • Fig. 2 is an exploded schematic diagram of several components in the compressor shown in Fig. 1 .
  • Fig. 3 is a schematic perspective view of an embodiment of a cover member in a compressor according to the present disclosure.
  • Fig. 4 is a schematic perspective view of another embodiment of a covering member in a compressor according to the present disclosure.
  • a compressor 100 including: a housing 101 , a scroll assembly 10 formed by a first scroll 11 and a second scroll 12 , bracket 4, driver 3 and motor 7, etc.
  • the housing 101 has an air inlet 82, the first scroll 11 and the second scroll 12 are arranged in the housing 101 to form a scroll assembly 10, the first scroll 11
  • a compression chamber for compressing the medium is defined between the second scroll disk 12 and the second scroll disk 12 .
  • the first scroll 11 includes a first end plate 112 and a first scroll wrap 113 extending from the first end plate 112 in the first direction D1;
  • the second scroll 12 includes a second end plate 123 and
  • the end plate 123 extends a second scroll wrap 124 along a second direction D2 opposite to the first direction D1, and the second scroll wrap 124 cooperates with the first scroll wrap 113 to form a compression cavity.
  • the bracket 4 is located on a side of the second scroll 12 away from the first scroll 11 .
  • the motor 7 is arranged in the casing 101 and is used to drive the first scroll 11 to rotate along its rotation axis.
  • the driving member 3 is rotatably mounted on the bracket 4 and located on the side of the second scroll 12 away from the first scroll 11 , the motor 7 drives the first scroll 11 to rotate around its axis of rotation through the driving member 3 , And the first scroll 11 drives the second scroll 12 to rotate around its rotation axis, wherein the rotation axis of the first scroll 11 and the rotation axis of the second scroll 12 are not on the same line and are mutually offset.
  • the compressor 100 further includes a shielding member 83 disposed between the air inlet 82 and the scroll assembly 10 .
  • the shielding member 83 is disposed at least between a part of the scroll assembly 10 corresponding to the air inlet 82 and the air inlet 82, so as to prevent the gas to be compressed from the air inlet directly entering together with the liquid refrigerant.
  • the compression cavity of the scroll assembly 10 is used to avoid damage to the scroll assembly.
  • the shielding member 83 may adopt a thin-walled structure such as a copper sheet.
  • the blocking member 83 may be a cylindrical wall structure with an equal diameter.
  • the shielding member 83 may also be a cylindrical wall structure with a variable diameter, so that the shape of the shielding member 83 conforms to at least a part of the outer peripheral surface of the scroll assembly 10, that is, the shielding member
  • the shape of 83 may be adapted to the shape of at least a portion of the outer peripheral surface of the scroll assembly 10 .
  • the shielding member 83 has a semi-cylindrical wall structure and is arranged outside at least a part of the outer peripheral surface of the scroll assembly 10 corresponding to the air inlet 82 .
  • the blocking member 83 is made of metal material or non-metal material.
  • the blocking member 83 is made of a metal material such as copper.
  • the shielding member 83 further includes an edge portion 831, and the edge portion 831 is provided with a through hole 833, and the shielding member 83 is fixed to the bracket 4 through the edge portion 831 (such as Figure 1 and Figure 2).
  • the blocking member 83 ′ having a semi-cylindrical wall structure also includes an edge portion 831 ′, and the edge portion 831 ′ is opened with a through hole 833 ′, The blocking member 83' is fixed to the bracket 4 (as shown in FIGS. 1 and 2 ) through the edge portion 831'.
  • the edge portion 831' is provided with a notch 832', which can be used to avoid the lead wire of the motor 7, so that the lead wire of the motor 7 can be drawn out from the notch 832'.
  • a shield member 83' with a cylindrical wall structure or a semi-cylindrical wall structure, and opening a gap 832' at the edge portion 831' of the shield member 83, not only the scroll assembly, the motor stator, etc. can be accommodated.
  • Components, and for example, various lead wires from the motor 7 etc. are drawn out from the gap 832 ′, so as to prevent the scroll and the driving member 3 from stirring various lead wires inside the compressor housing during rotation.
  • fluids such as liquid refrigerant and lubricating oil can also flow through the gap 832'.
  • the motor 70 further includes: a stator 72 and a rotor 71 .
  • the stator 72 is arranged in the frame 4 .
  • through the through holes (such as the through holes 833 shown in FIG. 2 ) of the edge portion 831 and the flange edge 721 of the stator 72 are fastened to the bracket 4 through fasteners (such as bolts) 89, In order to fix the shielding member 83 and the stator 72 to the bracket 4 together.
  • the first end plate 112 of the first scroll 11 further includes an outer edge portion 111 , and the orthographic projection of the blocking member 83 on the first end plate 112 is located on the outer edge. portion 111 , and there is a first gap G1 between the shielding member 83 and the outer edge portion 111 .
  • the second gap G2 is located between the upper end of the lower half of the casing 101 and the extension arm of the bracket 4 for supporting the motor 7 .
  • the compressor 100 includes: a first refrigerant flow path (shown as a thin solid curve with an arrow as shown in FIG. 1 ) F1, and the refrigerant flows along the first A refrigerant flow path F1 enters the compression chamber defined by the first scroll 11 and the second scroll 12 from the intake port 82 through the first gap G1 .
  • the compressor 100 also includes: a second refrigerant flow path (shown by the thin solid curve with arrows as shown in FIG.
  • the gap G2 enters a compression chamber defined jointly by the first scroll 11 and the second scroll 12 .
  • the refrigerant enters the housing 101 through the air inlet 82, and a part of the refrigerant flows upward along the first refrigerant flow path F1, bypasses the upper end of the shielding member 83, and then flows downward through the
  • the fluid channel enters the compression chamber, and another part of the refrigerant flows downward along the second refrigerant flow path F2, and enters the motor 7 under the lower end of the shielding member 83 to cool the motor, and then flows upward, and enters the compression chamber through the fluid channel 6 cavity.
  • the outer edge 111 of the first end plate 112 can prevent the gas in the air inlet from continuing to go up and enter the compression chamber through G1, and at the same time, can isolate the air inlet and the exhaust chamber on the upper part of the compressor to avoid inhaled refrigerant Exchange heat with the high-temperature refrigerant in the discharge cavity.
  • a hollow passage is formed in the driving member 3, and a fixed shaft 5 fixed to the bracket 4 is arranged in the hollow passage.
  • the fixed shaft 5 has a transverse through hole 85, and an oiling bolt 81 is disposed in the axial bore 58 of the fixed shaft 5 and is connected to the second scroll 12 .
  • the compressor 100 may include: a first lubricating oil flow path (shown as a dotted curve with an arrow as shown in FIG.
  • a lubricating oil flow path R1 flows from the oiling bolt 81 through the axial inner hole 58 and the transverse through hole 85 between the lower end of the driving member 3 and the bracket 4 to lubricate between the lower end of the driving member 3 and the bracket 4 .
  • a part of lubricating oil in the oil pool reaches the transverse through hole 85 through the oiling bolt 81 and lubricates the bearing installed on the inner wall of the lower end of the hub of the driving member 3 through the transverse through hole 85 . Under the action of gravity, this part of lubricating oil flows down into the recess of the bracket 4 and returns to the oil pool through the oil leakage hole at the recess.
  • the compressor 100 further includes: a second lubricating oil flow path (shown by the dashed curve with an arrow as shown in FIG. 1 ) R2, and the lubricating oil flows from the oiling
  • the bolt 81 flows between the upper end of the driving member 3 and the hub of the second scroll 12 through the gap between the outermost part of the oil bolt 81 and the inner wall of the inner hole of the crankshaft, so as to press the upper end of the driving member 3 and the second scroll.
  • Parts such as the sliding bearing between the hubs of 12 are lubricated. Specifically, a part of the lubricating oil in the oil pool reaches the topmost position of the fixed shaft 5 through the oiling bolt 81, and during the ascent process along the oiling bolt 81, this part of the lubricating oil carries on the sliding bearing at the top of the fixed shaft 5. lubricating.
  • this part of lubricating oil lubricates the bearing located between the hub of the second scroll 12 and the inner diameter of the slider, and then part of this part of lubricating oil flows back down through the straight hole on the side of the fixed shaft 5
  • another part of this part of lubricating oil flows to the main bearing located outside the hub of the second scroll 12 (one side of the main bearing is connected to the driving member 3 and the other side is connected to the fixed shaft 5) to Lubricate the main bearing, then flow back to the bracket 4, and return to the oil pool through the oil leakage hole at the recess of the bracket 4.
  • the compressor 100 also includes: a third lubricating oil flow path (shown by the dashed curve with an arrow as shown in FIG. 1 ) R3, and the lubricating oil flows along the third lubricating oil flow path R3 from The bolt 81 flows into the compression chamber defined between the first scroll 11 and the second scroll 12 via the gap 58 between the outermost portion of the oiling bolt 81 and the inner wall of the crankshaft bore.
  • a third lubricating oil flow path shown by the dashed curve with an arrow as shown in FIG. 1 ) R3
  • the bolt 81 flows into the compression chamber defined between the first scroll 11 and the second scroll 12 via the gap 58 between the outermost portion of the oiling bolt 81 and the inner wall of the crankshaft bore.
  • a shielding member is provided between the air inlet and the scroll assembly to prevent liquid refrigerant from directly entering the compression chamber of the scroll assembly, so as to avoid damage to the scroll assembly and at the same time utilize the shielding
  • the component optimizes the flow path of the refrigerant in the compressor, improving the efficiency of the scroll compressor, thereby improving the performance of the compressor.

Abstract

Compresseur comprenant : un carter (101), le carter (101) étant doté d'une entrée d'air (82) ; une première plaque de volute (11) et une deuxième plaque de volute (12) disposées dans le carter (101) de manière à former un ensemble volute (10), une chambre de compression d'un milieu étant définie entre la première plaque de volute (11) et la deuxième plaque de volute (12) ; un moteur (7) qui, logé dans le carter (101) et servant à entraîner en rotation la première plaque de volute (11) le long d'un axe de rotation de cette dernière ; et un élément de blindage (83) disposé entre l'entrée d'air (82) et l'ensemble volute (10). Selon le compresseur, peuvent être évités toute entrée directe du fluide frigorigène liquide dans la chambre de compression et tout endommagement de l'ensemble volute.
PCT/CN2022/143401 2021-12-31 2022-12-29 Compresseur WO2023125810A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
CN202111681130.2A CN116412127A (zh) 2021-12-31 2021-12-31 压缩机
CN202111681130.2 2021-12-31
CN202123450147.5U CN217354741U (zh) 2021-12-31 2021-12-31 压缩机
CN202123450147.5 2021-12-31

Publications (1)

Publication Number Publication Date
WO2023125810A1 true WO2023125810A1 (fr) 2023-07-06

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ID=86998189

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2022/143401 WO2023125810A1 (fr) 2021-12-31 2022-12-29 Compresseur

Country Status (1)

Country Link
WO (1) WO2023125810A1 (fr)

Citations (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5007809A (en) * 1988-12-07 1991-04-16 Mitsubishi Denki Kabushiki Kaisha Scroll compressor with dividing chamber for suction fluid
US5055010A (en) * 1990-10-01 1991-10-08 Copeland Corporation Suction baffle for refrigeration compressor
US5090876A (en) * 1989-02-28 1992-02-25 Seiko Epson Corporation Scroll type fluid handling machine
US5219281A (en) * 1986-08-22 1993-06-15 Copeland Corporation Fluid compressor with liquid separating baffle overlying the inlet port
US5240391A (en) * 1992-05-21 1993-08-31 Carrier Corporation Compressor suction inlet duct
JPH07208351A (ja) * 1994-01-27 1995-08-08 Sanyo Electric Co Ltd スクロール圧縮機
CN1420967A (zh) * 2000-12-22 2003-05-28 毕彻制冷机有限公司 压缩机
US20040057849A1 (en) * 2002-09-23 2004-03-25 Skinner Robin G. Compressor assembly having baffle
US20040126258A1 (en) * 2002-12-30 2004-07-01 Industrial Technology Research Institute Baffle plate assembly for a compressor
CN1754044A (zh) * 2003-02-27 2006-03-29 美国标准国际公司 带有分路流动方式的涡旋压缩机
US20070183914A1 (en) * 2005-05-02 2007-08-09 Tecumseh Products Company Suction baffle for scroll compressors
CN101713404A (zh) * 2008-10-06 2010-05-26 乐金电子(天津)电器有限公司 涡轮压缩机气液分离装置
CN105443393A (zh) * 2014-05-29 2016-03-30 丹佛斯（天津）有限公司 压缩机的回油装置及压缩机
CN110998093A (zh) * 2017-07-19 2020-04-10 三星电子株式会社 封闭式压缩机
CN217354741U (zh) * 2021-12-31 2022-09-02 丹佛斯（天津）有限公司 压缩机

Patent Citations (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5219281A (en) * 1986-08-22 1993-06-15 Copeland Corporation Fluid compressor with liquid separating baffle overlying the inlet port
US5007809A (en) * 1988-12-07 1991-04-16 Mitsubishi Denki Kabushiki Kaisha Scroll compressor with dividing chamber for suction fluid
US5090876A (en) * 1989-02-28 1992-02-25 Seiko Epson Corporation Scroll type fluid handling machine
US5055010A (en) * 1990-10-01 1991-10-08 Copeland Corporation Suction baffle for refrigeration compressor
US5240391A (en) * 1992-05-21 1993-08-31 Carrier Corporation Compressor suction inlet duct
JPH07208351A (ja) * 1994-01-27 1995-08-08 Sanyo Electric Co Ltd スクロール圧縮機
CN1420967A (zh) * 2000-12-22 2003-05-28 毕彻制冷机有限公司 压缩机
US20040057849A1 (en) * 2002-09-23 2004-03-25 Skinner Robin G. Compressor assembly having baffle
US20040126258A1 (en) * 2002-12-30 2004-07-01 Industrial Technology Research Institute Baffle plate assembly for a compressor
CN1754044A (zh) * 2003-02-27 2006-03-29 美国标准国际公司 带有分路流动方式的涡旋压缩机
US20070183914A1 (en) * 2005-05-02 2007-08-09 Tecumseh Products Company Suction baffle for scroll compressors
CN101713404A (zh) * 2008-10-06 2010-05-26 乐金电子(天津)电器有限公司 涡轮压缩机气液分离装置
CN105443393A (zh) * 2014-05-29 2016-03-30 丹佛斯（天津）有限公司 压缩机的回油装置及压缩机
CN110998093A (zh) * 2017-07-19 2020-04-10 三星电子株式会社 封闭式压缩机
CN217354741U (zh) * 2021-12-31 2022-09-02 丹佛斯（天津）有限公司 压缩机

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