WO2015085823A1 - Scroll compressor - Google Patents

Scroll compressor Download PDF

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Publication number
WO2015085823A1
WO2015085823A1 PCT/CN2014/088630 CN2014088630W WO2015085823A1 WO 2015085823 A1 WO2015085823 A1 WO 2015085823A1 CN 2014088630 W CN2014088630 W CN 2014088630W WO 2015085823 A1 WO2015085823 A1 WO 2015085823A1
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WIPO (PCT)
Prior art keywords
scroll
fixed scroll
end plate
compressor according
fixed
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PCT/CN2014/088630
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French (fr)
Chinese (zh)
Inventor
李庆才
叶涛
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艾默生环境优化技术(苏州)有限公司
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Priority to CN201310680416.8 priority Critical
Priority to CN201310680416.8A priority patent/CN104712556B/en
Priority to CN201320822178.5 priority
Priority to CN201320822178.5U priority patent/CN203614399U/en
Application filed by 艾默生环境优化技术(苏州)有限公司 filed Critical 艾默生环境优化技术(苏州)有限公司
Publication of WO2015085823A1 publication Critical patent/WO2015085823A1/en

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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04CROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C18/00Rotary-piston pumps specially adapted for elastic fluids
    • F04C18/02Rotary-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
    • F04C18/0207Rotary-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
    • F04C18/0215Rotary-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
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04CROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C18/00Rotary-piston pumps specially adapted for elastic fluids
    • F04C18/02Rotary-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
    • F04C18/0207Rotary-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
    • F04C18/0246Details concerning the involute wraps or their base, e.g. geometry
    • F04C18/0269Details concerning the involute wraps
    • F04C18/0292Ports or channels located in the wrap
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04CROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C23/00Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluids; Pumping installations specially adapted for elastic fluids; Multi-stage pumps specially adapted for elastic fluids
    • F04C23/008Hermetic pumps

Abstract

A scroll compressor (100) comprises: a casing (10); a compressing mechanism (CM) arranged in the casing (10), the compressing mechanism (CM) comprising a fixed scroll (20) and a movable scroll (30); a main bearing seat (50) suitable for supporting the fixed scroll (20); a back pressure chamber (B) that is formed in the opposite second side of an end plate (34) of the movable scroll, and is suitable for applying back pressure to the second side of the end plate of the movable scroll to enable the movable scroll (30) to engage with the fixed scroll (20); and a pressure introducing passage (P) thatis arranged in the compressing mechanism (CM) and can selectively provide fluid communication between the back pressure chamber (B) and the predetermined area in the casing (10), wherein the pressure in the predetermined area is greater than the suction pressure of the scroll compressor.

Description

涡旋压缩机Scroll compressor
本申请要求于2013年12月12日提交的、发明名称为“涡旋压缩机”的发明申请No.201310680416.8以及于2013年12月12日提交的、发明名称为“涡旋压缩机”的实用新型申请No.201320822178.5的优先权,这些申请的全部公开内容并入本文。This application claims the invention application No. 201310680416.8, entitled "Vortex Compressor", filed on December 12, 2013, and the utility of the invention entitled "Vortex Compressor" filed on December 12, 2013 The priority of the novel application No. 201320822178.5, the entire disclosure of each of which is incorporated herein.
技术领域Technical field
本发明涉及一种涡旋压缩机。The present invention relates to a scroll compressor.
背景技术Background technique
本部分的内容仅提供了与本公开相关的背景信息,其可能并不构成现有技术。The content of this section merely provides background information related to the present disclosure, which may not constitute prior art.
已知一种涡旋压缩机设计,其中背压腔设置在动涡旋侧从而为动涡旋提供使其与定涡旋在轴向方向上接合的背压力。然而,在这种设计中,在例如液击等不利工况下,存在背压力降低而使动涡旋和定涡旋无法在轴向方向上接合的可能性,从而导致压缩机无法正常工作且降低了压缩机的工作可靠性。A scroll compressor design is known in which a back pressure chamber is provided on the orbiting scroll side to provide a back pressure for the orbiting scroll to engage the fixed scroll in the axial direction. However, in this design, under adverse conditions such as liquid hammer, there is a possibility that the back pressure is lowered to make the movable scroll and the fixed scroll unable to engage in the axial direction, thereby causing the compressor to malfunction and Reduce the operational reliability of the compressor.
因此,需要一种可靠性进一步改进的涡旋压缩机。Therefore, there is a need for a scroll compressor with further improved reliability.
发明内容Summary of the invention
本发明的一个或多个实施方式的一个目的是提供一种可靠性进一步提高的涡旋压缩机。It is an object of one or more embodiments of the present invention to provide a scroll compressor with further improved reliability.
本发明的一个或多个实施方式的另一个目的是提供一种在动涡旋发生倾覆后仍然能够使得动涡旋和定涡旋在轴向方向上彼此接合的涡旋压缩机。Another object of one or more embodiments of the present invention is to provide a scroll compressor that can still cause the orbiting scroll and the fixed scroll to engage each other in the axial direction after the movable scroll is tipped.
本发明的一个或多个实施方式的又一个目的是提供一种能效比更高和/或成本更低和/或耐磨性更高的涡旋压缩机。Yet another object of one or more embodiments of the present invention is to provide a scroll compressor that is more energy efficient and/or less costly and/or more wear resistant.
为了实现上述目的中的一个或多个,根据本发明一个方面,提供了一种涡旋压缩机,其可以包括:壳体;设置在所述壳体内的压缩机构,所 述压缩机构包括定涡旋和动涡旋,其中所述定涡旋包括定涡旋端板和形成在所述定涡旋端板第一侧的定涡旋叶片,所述动涡旋包括动涡旋端板和形成在所述动涡旋端板第一侧的动涡旋叶片,并且其中所述定涡旋叶片与所述动涡旋叶片相互接合以在其间形成一系列能够对流体进行压缩的压缩腔;主轴承座,所述主轴承座适于支撑所述定涡旋;背压腔,所述背压腔形成在所述动涡旋端板的相反的第二侧并且适于向所述动涡旋端板的第二侧施加背压力以使得所述动涡旋与所述定涡旋接合;以及压力引入通道,所述压力引入通道设置在所述压缩机构中并且能够在所述背压腔与所述壳体中的预定区域之间形成选择性地流体连通,其中所述预定区域的压力大于所述涡旋压缩机的吸气压力。In order to achieve one or more of the above objects, according to one aspect of the present invention, a scroll compressor is provided, which may include: a housing; a compression mechanism disposed in the housing, The compression mechanism includes a fixed scroll and a movable scroll, wherein the fixed scroll includes a fixed scroll end plate and a fixed scroll blade formed on a first side of the fixed scroll end plate, the movable scroll including a scroll end plate and an orbiting scroll blade formed on a first side of the orbiting scroll end plate, and wherein the fixed scroll blade and the orbiting scroll blade are engaged with each other to form a series of fluids therebetween a compression bearing chamber; a main bearing housing adapted to support the fixed scroll; a back pressure chamber formed on an opposite second side of the movable scroll end plate and adapted Applying a back pressure to the second side of the orbiting scroll end plate to engage the orbiting scroll; and a pressure introduction passage, the pressure introduction passage being disposed in the compression mechanism and capable of The back pressure chamber is in selective fluid communication with a predetermined region in the housing, wherein the predetermined region has a pressure greater than an intake pressure of the scroll compressor.
附图说明DRAWINGS
通过以下参照附图的描述,本发明的一个或几个实施方式的特征和优点将变得更加容易理解,其中:The features and advantages of one or more embodiments of the present invention will become more <RTIgt;
图1是一种涡旋压缩机的纵向剖视图;Figure 1 is a longitudinal sectional view of a scroll compressor;
图2是图1中的压缩机构和主轴承座的适应性剖视图;Figure 2 is an adaptive cross-sectional view of the compression mechanism and the main bearing housing of Figure 1;
图3是图2所示的动涡旋倾覆时的示意图;Figure 3 is a schematic view of the movable scroll shown in Figure 2;
图4是根据本发明第一实施方式的定涡旋的仰视图;Figure 4 is a bottom plan view of a fixed scroll according to a first embodiment of the present invention;
图5是图4所示的定涡旋的局部剖视图;Figure 5 is a partial cross-sectional view of the fixed scroll shown in Figure 4;
图6是根据本发明第二实施方式的动涡旋的俯视图;Figure 6 is a plan view of an orbiting scroll according to a second embodiment of the present invention;
图7是图6所示的动涡旋的剖视图;Figure 7 is a cross-sectional view of the movable scroll shown in Figure 6;
图8是根据本发明第三实施方式的动涡旋的俯视图;Figure 8 is a plan view of an orbiting scroll according to a third embodiment of the present invention;
图9是图8所示的动涡旋的剖视图;Figure 9 is a cross-sectional view of the movable scroll shown in Figure 8;
图10是根据本发明第四实施方式的定涡旋的立体图;以及Figure 10 is a perspective view of a fixed scroll according to a fourth embodiment of the present invention;
图11是根据本发明第五实施方式的动涡旋的俯视图。Figure 11 is a plan view of an orbiting scroll according to a fifth embodiment of the present invention.
具体实施方式detailed description
下面对优选实施方式的描述仅仅是示范性的,而绝不是对本发明及其 应用或用法的限制。在各个附图中采用相同的附图标记来表示相同的部件,因此相同部件的构造将不再重复描述。The following description of the preferred embodiments is merely exemplary and is in no way intended to Application or usage restrictions. The same reference numerals are used in the respective drawings to refer to the same components, and thus the construction of the same components will not be repeatedly described.
下面将参照图1-3描述涡旋压缩机的基本构造和工作原理。The basic configuration and operation principle of the scroll compressor will be described below with reference to Figs.
如图1和2所示,涡旋压缩机(下文中也称之为压缩机)100包括大致封闭的壳体10。壳体10限定了压缩机100的内部空间。在图中的示例中,壳体10可以由大致圆筒形的本体部12、顶盖14、和底盖16构成。壳体10的这些部件例如可以通过焊接、螺栓连接等任何合适的方法彼此连接在一起。As shown in FIGS. 1 and 2, a scroll compressor (hereinafter also referred to as a compressor) 100 includes a substantially closed casing 10. The housing 10 defines an interior space of the compressor 100. In the example of the figures, the housing 10 can be constructed from a generally cylindrical body portion 12, a top cover 14, and a bottom cover 16. These components of the housing 10 can be joined to each other, for example, by welding, bolting, or the like, by any suitable method.
壳体10上可以设置用于吸入工作流体的流体入口配件17和用于排出压缩后的工作流体的流体出口配件18。在壳体10内可以设置能够对流体进行压缩的压缩机构CM。在本示例中,用于驱动压缩机构CM的驱动机构40也设置在壳体10中。但是本领域技术人员应该理解,对于所谓的开放式压缩机设计而言,驱动机构40也可以设置在壳体10的外侧。A fluid inlet fitting 17 for drawing in the working fluid and a fluid outlet fitting 18 for discharging the compressed working fluid may be disposed on the housing 10. A compression mechanism CM capable of compressing the fluid may be disposed within the housing 10. In the present example, the drive mechanism 40 for driving the compression mechanism CM is also disposed in the housing 10. However, it will be understood by those skilled in the art that for a so-called open compressor design, the drive mechanism 40 can also be disposed outside of the housing 10.
更具体地,在如图所示的示例中,压缩机构CM可以包括定涡旋20和动涡旋30。定涡旋20可以以任何合适的方式相对于壳体10固定,例如通过螺栓相对于后面描述的主轴承座50固定。More specifically, in the example as shown, the compression mechanism CM may include a fixed scroll 20 and an orbiting scroll 30. The fixed scroll 20 can be fixed relative to the housing 10 in any suitable manner, such as by bolts relative to the main bearing housing 50 described later.
如图2所示,定涡旋20可以包括定涡旋端板24和形成在定涡旋端板24一侧的定涡旋叶片26以及位于定涡旋20径向最外侧的周壁部22。周壁部22可以构成定涡旋叶片26的一部分。定涡旋端板24的大致中央的部分形成有排气口28。As shown in FIG. 2, the fixed scroll 20 may include a fixed scroll end plate 24, a fixed scroll blade 26 formed on one side of the fixed scroll end plate 24, and a peripheral wall portion 22 located radially outward of the fixed scroll 20. The peripheral wall portion 22 may constitute a portion of the fixed scroll blade 26. A substantially central portion of the fixed scroll end plate 24 is formed with an exhaust port 28.
动涡旋30可以包括动涡旋端板34、形成在动涡旋端板34一侧的动涡旋叶片36和形成在动涡旋端板34另一侧的毂部32。适于支撑定涡旋20和/或动涡旋30的主轴承座50可以通过任何合适地方式相对于壳体10固定。动涡旋30能够被驱动机构40驱动而相对于定涡旋20平动转动(即,动涡旋30的中心轴线绕定涡旋20的中心轴线旋转,但是动涡旋30本身不会绕自身的中心轴线旋转)以实现流体的压缩。上述平动转动通过定涡旋20和动涡旋30之间设置的十字滑环58来实现。The movable scroll 30 may include a movable scroll end plate 34, a movable scroll blade 36 formed on one side of the movable scroll end plate 34, and a hub portion 32 formed on the other side of the movable scroll end plate 34. The main bearing housing 50 adapted to support the fixed scroll 20 and/or the movable scroll 30 can be fixed relative to the housing 10 by any suitable means. The movable scroll 30 can be driven by the drive mechanism 40 to rotate relative to the fixed scroll 20 (i.e., the central axis of the movable scroll 30 rotates about the central axis of the fixed scroll 20, but the movable scroll 30 itself does not wrap around itself. The central axis is rotated) to achieve compression of the fluid. The translational rotation described above is achieved by a cross slip ring 58 disposed between the fixed scroll 20 and the movable scroll 30.
定涡旋叶片26可以与动涡旋叶片36相互接合以与定涡旋端板24和动涡旋端板34一起构成一系列体积从径向外侧向径向内侧逐渐减小的压缩腔C1、C2和C3等以对流体进行压缩。排气口28可以与一系列压缩腔中 的最内侧的压缩腔C3流体连通。The fixed scroll blade 26 may be engaged with the orbiting scroll blade 36 to form a series of compression chambers C1 whose volume gradually decreases from the radially outer side to the radially inner side together with the fixed scroll end plate 24 and the orbiting scroll end plate 34. C2 and C3 etc. compress the fluid. The exhaust port 28 can be in a series of compression chambers The innermost compression chamber C3 is in fluid communication.
在图1所示的示例中,涡旋压缩机100为高压侧设计。在这种设计中,压缩机构40处于排气压力区,而待压缩的工作流体直接供应到压缩机构CM内的吸气压力区中。具体地,流体入口配件17与定涡旋20密封地连接从而为定涡旋20与动涡旋30之间的一系列压缩腔C1、C2和C3中的位于径向最外侧的压缩腔C1供应待压缩的工作流体。In the example shown in FIG. 1, the scroll compressor 100 is of a high pressure side design. In this design, the compression mechanism 40 is in the exhaust pressure zone and the working fluid to be compressed is supplied directly into the suction pressure zone within the compression mechanism CM. Specifically, the fluid inlet fitting 17 is sealingly coupled to the fixed scroll 20 to supply the radially outermost compression chamber C1 of the series of compression chambers C1, C2, and C3 between the fixed scroll 20 and the movable scroll 30. The working fluid to be compressed.
驱动机构40例如可以包括由定子42和转子43构成的马达。定子42可以采用任何合适的方式相对于壳体10固定。转子43能够在定子42中旋转并且其中设置有驱动轴45。驱动轴45由主轴承座50和下轴承座60支撑。驱动轴45的一端形成有偏心曲柄销46。偏心曲柄销46经由卸载衬套48配合在动涡旋30的毂部32中以驱动动涡旋30。驱动轴45中还形成有润滑油通道47。该润滑油通道47的一端(即驱动轴45的下端)位于壳体10下侧形成的润滑油槽中。在润滑油通道47的该端可以设置泵油装置49。The drive mechanism 40 may include, for example, a motor composed of a stator 42 and a rotor 43. The stator 42 can be fixed relative to the housing 10 in any suitable manner. The rotor 43 is rotatable in the stator 42 and is provided with a drive shaft 45 therein. The drive shaft 45 is supported by the main bearing housing 50 and the lower bearing housing 60. One end of the drive shaft 45 is formed with an eccentric crank pin 46. The eccentric crank pin 46 is fitted into the hub portion 32 of the movable scroll 30 via the unloading bushing 48 to drive the movable scroll 30. A lubricating oil passage 47 is also formed in the drive shaft 45. One end of the lubricating oil passage 47 (i.e., the lower end of the drive shaft 45) is located in a lubricating oil groove formed on the lower side of the housing 10. A pumping device 49 may be provided at the end of the lubricating oil passage 47.
在压缩机100的正常工作中,定涡旋20和动涡旋30必须在轴向方向上彼此接合才能对工作流体进行压缩。另外,为了给涡旋组件提供一定的轴向柔性以增加压缩机的可靠性和安全性,通常为定涡旋20和动涡旋30中的一者设置背压腔,从而使得定涡旋20和动涡旋30能够在背压力的作用下彼此可靠接合。In the normal operation of the compressor 100, the fixed scroll 20 and the movable scroll 30 must be engaged with each other in the axial direction to compress the working fluid. In addition, in order to provide the scroll assembly with a certain axial flexibility to increase the reliability and safety of the compressor, a back pressure chamber is usually provided for one of the fixed scroll 20 and the movable scroll 30, thereby making the fixed scroll 20 The movable scroll 30 can be reliably engaged with each other under the action of the back pressure.
在图1和2所示的压缩机设计中,背压腔B设置在动涡旋30侧并且位于主轴承座50内的空间中。换言之,背压腔B形成在动涡旋端板34的相反的第二侧并且适于向动涡旋端板34的第二侧施加背压力以使得动涡旋30与定涡旋20接合。特别是,背压腔B由主轴承座50与定涡旋20和动涡旋30共同构成。更具体地,定涡旋20的周壁部22的至少一部分与主轴承座50的第一部分52密封地接合以形成第一密封部S1,并且动涡旋30的毂部32的至少一部分与主轴承座50的第二部分54密封地接合以形成第二密封部S2。可以在第二密封部S2的区域中设置能够在轴向方向上变形的弹性密封件以适应下文描述的动涡旋30的轴向位移或倾覆。由此,在主轴承座50、定涡旋20和动涡旋30之间形成大致封闭的背压腔B。另外,背压腔B经由形成在动涡旋端板34中的连通孔35与例如一系列压缩腔中的处于中间压力的压缩腔C2连通由此在背压腔B中积聚背压力。 In the compressor design shown in FIGS. 1 and 2, the back pressure chamber B is disposed on the side of the movable scroll 30 and located in the space inside the main bearing housing 50. In other words, the back pressure chamber B is formed on the opposite second side of the orbiting scroll end plate 34 and is adapted to apply a back pressure to the second side of the orbiting scroll end plate 34 to engage the orbiting scroll 30 with the fixed scroll 20. In particular, the back pressure chamber B is composed of the main bearing housing 50 and the fixed scroll 20 and the movable scroll 30. More specifically, at least a portion of the peripheral wall portion 22 of the fixed scroll 20 sealingly engages the first portion 52 of the main bearing housing 50 to form the first seal portion S1, and at least a portion of the hub portion 32 of the movable scroll 30 and the main bearing The second portion 54 of the seat 50 is sealingly engaged to form a second seal S2. An elastic seal capable of deforming in the axial direction may be provided in the region of the second seal portion S2 to accommodate axial displacement or tipping of the movable scroll 30 described below. Thereby, a substantially closed back pressure chamber B is formed between the main bearing housing 50, the fixed scroll 20 and the movable scroll 30. Further, the back pressure chamber B communicates with the compression chamber C2 at an intermediate pressure in, for example, a series of compression chambers via a communication hole 35 formed in the movable scroll end plate 34, thereby accumulating back pressure in the back pressure chamber B.
在压缩机的正常运转过程中,背压腔B中的背压力形成的合力大于压缩腔C1、C2和C3中的工作流体的压力形成的合力,由此使得动涡旋30与定涡旋20在轴向方向上彼此接合。而当例如在压缩机处于液击等工况下时,压缩腔C1、C2和C3中的工作流体的压力形成的合力将大于背压腔B中的背压力形成的合力,由此动涡旋30与定涡旋20在轴向方向上彼此分开预定距离d或倾覆,例如如图3所示,从而为各个压缩腔泄压,由此保护了压缩机构不被破坏。During normal operation of the compressor, the resultant pressure generated by the back pressure in the back pressure chamber B is greater than the resultant force formed by the pressure of the working fluid in the compression chambers C1, C2, and C3, thereby causing the movable scroll 30 and the fixed scroll 20 Engaging each other in the axial direction. And when, for example, when the compressor is under a liquid hammer or the like, the combined force of the working fluids in the compression chambers C1, C2, and C3 will be greater than the resultant force generated by the back pressure in the back pressure chamber B, thereby moving the scroll 30 and the fixed scrolls 20 are separated from each other by a predetermined distance d or tipping in the axial direction, for example as shown in Fig. 3, thereby releasing pressure for the respective compression chambers, thereby protecting the compression mechanism from being damaged.
然而在图3所示的情况下,背压腔B中的背压力(其大于吸气压力)会经由定涡旋20与动涡旋30之间的间隙G泄漏到处于吸气压力的压缩腔C1中,由此背压力降低。如果背压力泄漏的较多,则定涡旋20与动涡旋30有可能无法彼此接合,从而压缩机构无法正常工作。另外,由于压缩腔C2中的压力变化或波动,即使是压缩机在正常工作过程中,也存在由于背压腔中的压力降低而导致动涡旋30倾覆的可能性。However, in the case shown in FIG. 3, the back pressure in the back pressure chamber B (which is greater than the suction pressure) leaks through the gap G between the fixed scroll 20 and the movable scroll 30 to the compression chamber at the suction pressure. In C1, the back pressure is thus reduced. If the back pressure leaks more, the fixed scroll 20 and the movable scroll 30 may not be engaged with each other, so that the compression mechanism does not work normally. In addition, due to pressure changes or fluctuations in the compression chamber C2, even during normal operation of the compressor, there is a possibility that the movable scroll 30 is tipped due to a decrease in pressure in the back pressure chamber.
为了避免在上述情况下定涡旋20与动涡旋30无法接合(换言之,动涡旋发生倾覆),技术人员尝试通过例如如下方式来增加背压腔中的背压力的合力:1)改变连通孔34的位置使其与压力更高的压缩腔连通,从而为背压腔提供更高的背压力;2)增加连通孔34的孔径以减小连接孔的节流作用,从而使得压缩腔C2中的压力能够更快地和以更大的流量流入到背压腔中;3)增加动涡旋端板的受力面积来提供背压力的合力。虽然上述方式能有效的提高动涡旋所承受的用于使其与定涡旋接合的轴向合力,提高动涡旋的抗倾覆能力,但是轴向合力的增加必然会导致动涡旋和定涡旋之间的接触面的接触压力的增加,从而使压缩机的功耗增加,能效比(EER)降低。另外,这些接触面也会发生过度磨损,从而降低涡旋部件的寿命和可靠性。In order to avoid that the fixed scroll 20 and the movable scroll 30 cannot be engaged in the above case (in other words, the movable scroll is tipped), the technician attempts to increase the resultant force of the back pressure in the back pressure chamber by, for example, the following: 1) changing the communication hole The position of 34 is such that it communicates with a higher pressure compression chamber to provide a higher back pressure for the back pressure chamber; 2) the aperture of the communication hole 34 is increased to reduce the throttling effect of the connection hole, thereby causing compression chamber C2 The pressure can flow into the back pressure chamber more quickly and at a higher flow rate; 3) increase the force area of the movable scroll end plate to provide the resultant force of the back pressure. Although the above method can effectively improve the axial force of the movable scroll for engaging the fixed scroll and improve the anti-overturning ability of the movable scroll, the increase of the axial force will inevitably lead to the movable scroll and the fixed The contact pressure of the contact surface between the vortices is increased, so that the power consumption of the compressor is increased and the energy efficiency ratio (EER) is lowered. In addition, these contact surfaces are subject to excessive wear, which reduces the life and reliability of the scroll components.
为此,发明人提出在压缩机构CM中设置压力引入通道并且使得压力引入通道能够在背压腔B与壳体10中的压力大于涡旋压缩机的吸气压力(优选地大于背压力)的预定区域之间提供选择性地流体连通。特别是,该压力引入通道可以构造成:在动涡旋30发生倾覆时在背压腔B与预定区域之间形成流体连通,而在动涡旋30与定涡旋20接合时切断背压腔与预定区域之间的流体连通。由此,当动涡旋30发生倾覆时,可以经由压力引入通道将压力大于吸气压力的工作流体额外地和/或快速地补充到背压腔中,从而能够有效地弥补背压腔中的压力泄漏或压力损失,从而能够使 得动涡旋30快速地和/或可靠地与定涡旋20重新接合。另一方面,当动涡旋30与定涡旋20接合时背压腔与预定区域之间的流体连通被切断,所以背压腔中的压力仅与例如压缩腔C2中的压力相关而与所述预定区域中的压力无关,换言之,在压缩机正常运转时背压腔中的压力并没有被额外地增大。由此,避免了动涡旋和定涡旋之间的过度磨损,提高了压缩机的能效比和可靠性。此外,由于仅需对定涡旋或动涡旋进行少量的机加工例如钻孔即可实现上述效果,涡旋部件的制造成本并不会显著提高。To this end, the inventors propose to provide a pressure introduction passage in the compression mechanism CM and to enable the pressure introduction passage to have a pressure in the back pressure chamber B and the housing 10 that is greater than the suction pressure of the scroll compressor (preferably greater than the back pressure). Selective fluid communication is provided between the predetermined regions. In particular, the pressure introduction passage may be configured to form a fluid communication between the back pressure chamber B and a predetermined region when the movable scroll 30 is tipped, and to cut the back pressure chamber when the movable scroll 30 is engaged with the fixed scroll 20. Fluid communication with the predetermined area. Therefore, when the movable scroll 30 is tipped, the working fluid having a pressure greater than the suction pressure can be additionally and/or quickly replenished into the back pressure chamber via the pressure introduction passage, thereby effectively compensating for the back pressure chamber. Pressure leak or pressure loss, which enables The vortex vortex 30 is re-engaged quickly and/or reliably with the fixed vortex 20. On the other hand, when the movable scroll 30 is engaged with the fixed scroll 20, the fluid communication between the back pressure chamber and the predetermined region is cut off, so the pressure in the back pressure chamber is only related to, for example, the pressure in the compression chamber C2. The pressure in the predetermined area is irrelevant, in other words, the pressure in the back pressure chamber is not additionally increased when the compressor is normally operated. Thereby, excessive wear between the movable scroll and the fixed scroll is avoided, and the energy efficiency ratio and reliability of the compressor are improved. Further, since the above effect can be achieved by performing a small amount of machining such as drilling for a fixed scroll or a movable scroll, the manufacturing cost of the scroll member is not significantly improved.
在图4和5中示出的本发明的第一实施方式中,压力引入通道P形成在定涡旋20中。具体地,压力引入通道P可以构造为形成在定涡旋20的周壁部22中的至少一个孔25。孔25的一端251敞开至壳体10内的预定区域,孔25的另一端252通向定涡旋20的周壁部22的与动涡旋20接合的端面,由此孔25的另一端252在动涡旋20与定涡旋30接合时能够由动涡旋端板34封闭。在此,预定区域可以为壳体内的排气压力区。孔25的形状不限于图中所示的直线形式,而是可以为折线或任何其他形式,只要孔的一端与壳体内的排气压力区连通,而孔的另一端能够被动涡旋端板封闭即可。例如,孔25可以形成为大致L形使其孔25的一端在定涡旋的周壁部的外侧面开口以向背压腔引入排气压力或者在定涡旋端板的排气口28的壁面处开口以引入可能更高的压力,而另一端在定涡旋的周壁部的底面开口。再例如,孔25可以形成为大致U形使其孔25的一端在定涡旋端板的形成有定涡旋叶片的一侧开口,而另一端同样在定涡旋的周壁部的底面开口,由此可以将其中一个压缩腔中的流体引入到背压腔中。In the first embodiment of the invention shown in FIGS. 4 and 5, the pressure introduction passage P is formed in the fixed scroll 20. Specifically, the pressure introduction passage P may be configured to form at least one hole 25 in the peripheral wall portion 22 of the fixed scroll 20. One end 251 of the hole 25 is opened to a predetermined area in the casing 10, and the other end 252 of the hole 25 leads to an end face of the peripheral wall portion 22 of the fixed scroll 20 that engages with the movable scroll 20, whereby the other end 252 of the hole 25 is The movable scroll 20 can be closed by the orbiting scroll end plate 34 when it is engaged with the fixed scroll 30. Here, the predetermined area may be an exhaust pressure zone within the housing. The shape of the hole 25 is not limited to the linear form shown in the drawings, but may be a fold line or any other form as long as one end of the hole communicates with the exhaust pressure zone in the housing, and the other end of the hole can be closed by the passive scroll end plate. Just fine. For example, the hole 25 may be formed in a substantially L shape such that one end of the hole 25 is opened on the outer side surface of the peripheral wall portion of the fixed scroll to introduce exhaust pressure to the back pressure chamber or at the wall surface of the exhaust port 28 of the fixed scroll end plate The opening is to introduce a possibly higher pressure while the other end is open at the bottom surface of the peripheral wall portion of the fixed scroll. For another example, the hole 25 may be formed in a substantially U shape such that one end of the hole 25 is open on a side of the fixed scroll end plate on which the fixed scroll blade is formed, and the other end is also open on the bottom surface of the peripheral wall portion of the fixed scroll. Thereby, the fluid in one of the compression chambers can be introduced into the back pressure chamber.
由此,如上所述,当动涡旋30发生倾覆时,排气压力经由压力引入通道P(孔25)引入到背压腔中,从而能够使得动涡旋30快速地和/或可靠地与定涡旋20重新接合。另一方面,当动涡旋30与定涡旋20接合时压力引入通道P(孔25)被动涡旋端板34封闭,所以排气压力不会额外地引入到背压腔中,从而不会增加背压腔的压力。Thus, as described above, when the movable scroll 30 is tipped, the exhaust pressure is introduced into the back pressure chamber via the pressure introduction passage P (hole 25), so that the movable scroll 30 can be quickly and/or reliably The fixed vortex 20 is re-engaged. On the other hand, when the movable scroll 30 is engaged with the fixed scroll 20, the pressure introduction passage P (hole 25) is closed by the passive scroll end plate 34, so that the exhaust pressure is not additionally introduced into the back pressure chamber, so that Increase the pressure in the back pressure chamber.
孔25的数量不限于图中所示,相反,例如可以在定涡旋20的周壁部22中仅设置1个孔25,或者可以沿定涡旋的周向方向均匀地设置多个孔25(例如在如图10中所示的第四实施方式中,设置有3个孔25)以在任何倾覆情况下都能够供应足够量的工作流体。The number of the holes 25 is not limited to that shown in the drawings. On the contrary, for example, only one hole 25 may be provided in the peripheral wall portion 22 of the fixed scroll 20, or a plurality of holes 25 may be uniformly disposed in the circumferential direction of the fixed scroll ( For example, in the fourth embodiment as shown in Fig. 10, three holes 25) are provided to be able to supply a sufficient amount of working fluid in any case of overturning.
在一种优选方式中,可以在定涡旋20的周壁部22的与动涡旋端板34相对的端面上形成与至少一个孔25的另一端252流体连通的至少一个凹槽 27。所述至少一个凹槽27可以在定涡旋的周壁部中沿周向方向延伸。另外,例如在如图10中所示的第四实施方式中,可以在定涡旋20的周壁部22的与动涡旋端板34相对的端面上设置数量与孔25的数量相对应的凹槽27,例如三个凹槽27。另外,上述凹槽也可以设置在动涡旋30上。例如在图11所示的本发明的第五实施方式中,可以在动涡旋端板34的与定涡旋20的周壁部22相对的端面上形成与例如图5所示的至少一个孔25的另一端252流体连通的至少一个凹槽37。在图11的示例中,凹槽37形成为与孔25的数量相对应的3个。特别是,凹槽37可以形成在动涡旋30进行平动转动过程中孔25的运动轨迹上以与孔25保持流体连通。In a preferred form, at least one groove in fluid communication with the other end 252 of the at least one hole 25 may be formed on an end surface of the peripheral wall portion 22 of the fixed scroll 20 opposite to the movable scroll end plate 34. 27. The at least one groove 27 may extend in the circumferential direction in the peripheral wall portion of the fixed scroll. Further, for example, in the fourth embodiment as shown in FIG. 10, a number of concaves corresponding to the number of the holes 25 may be provided on the end faces of the peripheral wall portion 22 of the fixed scroll 20 opposite to the movable scroll end plate 34. The groove 27 is, for example, three grooves 27. In addition, the above groove may also be provided on the movable scroll 30. For example, in the fifth embodiment of the present invention shown in FIG. 11, at least one hole 25 such as shown in FIG. 5 may be formed on the end surface of the movable scroll end plate 34 opposite to the peripheral wall portion 22 of the fixed scroll 20. The other end 252 is in fluid communication with at least one groove 37. In the example of FIG. 11, the grooves 37 are formed in three corresponding to the number of the holes 25. In particular, the recess 37 can be formed in the path of movement of the aperture 25 during the translational rotation of the orbiting scroll 30 to maintain fluid communication with the aperture 25.
进一步地,为了保证动涡旋发生倾覆时能够向背压腔提供足够流量的工作流体,可以对孔27的数量、孔径、预定区域的压力大小以及凹槽27的长度和/或面积等进行合理设计以满足预定要求。例如,上述至少一个凹槽27的总的周长可以设置成大致等于动涡旋20的外径。Further, in order to ensure that the movable vortex can provide a sufficient flow of the working fluid to the back pressure chamber when the tilting occurs, the number of the holes 27, the aperture, the pressure of the predetermined area, and the length and/or area of the groove 27 can be rationally designed. To meet the predetermined requirements. For example, the total circumference of the at least one groove 27 described above may be set to be substantially equal to the outer diameter of the movable scroll 20.
图6和7示出了根据本发明的第二实施方式,在该实施方式中,压力引入通道P包括形成在动涡旋叶片36中的至少一个孔33,孔33的一端331敞开至背压腔B,而孔33的另一端332在动涡旋30与定涡旋20接合时能够由定涡旋端板24封闭。例如,孔33的另一端332可以位于动涡旋叶片36的端面上。和第一实施方式中的描述类似,孔33的形状和位置不限于图中所示,而是可以根据希望引入的压力的大小而合理设计。在这种情况下,压缩机壳体中的预定区域可以为一系列压缩腔C1、C2、C3中的任何一个,例如位于径向内侧的压缩腔C3。同样地,在动涡旋叶片36的端面上可以形成与至少一个孔33的另一端332流体连通的至少一个凹槽37。至少一个凹槽37可以沿动涡旋叶片36的螺旋方向延伸。此外,至少一个凹槽37的总的周长可以设置成大致等于动涡旋30的外径。Figures 6 and 7 show a second embodiment in accordance with the present invention, in which the pressure introduction passage P includes at least one hole 33 formed in the orbiting scroll blade 36, one end 331 of the hole 33 being open to the back pressure Cavity B, while the other end 332 of the bore 33 can be closed by the fixed scroll end plate 24 when the orbiting scroll 30 is engaged with the fixed scroll 20. For example, the other end 332 of the hole 33 may be located on the end face of the orbiting scroll blade 36. Similar to the description in the first embodiment, the shape and position of the hole 33 are not limited to those shown in the drawings, but may be rationally designed according to the magnitude of the pressure to be introduced. In this case, the predetermined area in the compressor housing may be any one of a series of compression chambers C1, C2, C3, such as a compression chamber C3 located radially inward. Likewise, at least one groove 37 in fluid communication with the other end 332 of the at least one aperture 33 can be formed on the end face of the orbiting scroll blade 36. At least one groove 37 may extend in the spiral direction of the orbiting scroll blade 36. Furthermore, the total circumference of the at least one groove 37 may be set to be substantially equal to the outer diameter of the movable scroll 30.
此外,在如图8和9示出的本发明的第三实施方式中,压力引入通道P可以包括形成在动涡旋叶片36中的多个例如三个孔33以及与这些孔33分别连通或同时连通的凹槽37。Further, in the third embodiment of the present invention as shown in FIGS. 8 and 9, the pressure introduction passage P may include a plurality of, for example, three holes 33 formed in the orbiting scroll blade 36 and respectively communicate with the holes 33 or A groove 37 that is simultaneously connected.
第二实施方式和第三实施方式的构造可以实现与第一实施方式类似的技术效果,在此不再赘述。The configurations of the second embodiment and the third embodiment can achieve similar technical effects as those of the first embodiment, and are not described herein again.
尽管上文描述了本发明的多种实施方式和多个方面,但是本领域技术人员应该理解,可以对本发明的一些方面做出进一步的变型和/或改 进。Although various embodiments and aspects of the invention have been described above, those skilled in the art will appreciate that further variations and/or modifications may be made to some aspects of the invention. Progress.
例如,根据本发明的一个优选方面,提供了一种涡旋压缩机,其可以包括:壳体;设置在所述壳体内的压缩机构,所述压缩机构包括定涡旋和动涡旋,其中所述定涡旋包括定涡旋端板和形成在所述定涡旋端板第一侧的定涡旋叶片,所述动涡旋包括动涡旋端板和形成在所述动涡旋端板第一侧的动涡旋叶片,并且其中所述定涡旋叶片与所述动涡旋叶片相互接合以在其间形成一系列能够对流体进行压缩的压缩腔;主轴承座,所述主轴承座适于支撑所述定涡旋;背压腔,所述背压腔形成在所述动涡旋端板的相反的第二侧并且适于向所述动涡旋端板的第二侧施加背压力以使得所述动涡旋与所述定涡旋接合;以及压力引入通道,所述压力引入通道设置在所述压缩机构中并且能够在所述背压腔与所述壳体中的预定区域之间形成选择性地流体连通,其中所述预定区域的压力大于所述涡旋压缩机的吸气压力。For example, in accordance with a preferred aspect of the present invention, a scroll compressor is provided, which may include: a housing; a compression mechanism disposed within the housing, the compression mechanism including a fixed scroll and an orbiting scroll, wherein The fixed scroll includes a fixed scroll end plate and a fixed scroll blade formed on a first side of the fixed scroll end plate, the movable scroll including an orbiting scroll end plate and a movable scroll end formed at the movable scroll end An orbiting scroll blade on a first side of the plate, and wherein the fixed scroll blade and the orbiting scroll blade are engaged with each other to form a series of compression chambers capable of compressing a fluid therebetween; a main bearing housing, the main bearing a seat adapted to support the fixed scroll; a back pressure chamber formed on an opposite second side of the orbiting scroll end plate and adapted to be applied to a second side of the orbiting scroll end plate Back pressure to engage the orbiting scroll with the fixed scroll; and pressure introduction passage, the pressure introduction passage being disposed in the compression mechanism and capable of being predetermined in the back pressure chamber and the housing Selective fluid communication between the regions, wherein the predetermined region Pressure is greater than the suction pressure of the scroll compressor.
例如,根据本发明的另一个优选方面,所述压力引入通道可以构造成:在所述动涡旋发生倾覆时在所述背压腔与所述预定区域之间形成流体连通,而在所述动涡旋与所述定涡旋接合时切断所述背压腔与所述预定区域之间的流体连通。For example, according to another preferred aspect of the present invention, the pressure introduction passage may be configured to form a fluid communication between the back pressure chamber and the predetermined region when the movable scroll is tipped over, The movable scroll severs fluid communication between the back pressure chamber and the predetermined region when engaged with the fixed scroll.
例如,根据本发明的另一个优选方面,所述压力引入通道可以形成在所述定涡旋中。For example, according to another preferred aspect of the invention, the pressure introduction passage may be formed in the fixed vortex.
例如,根据本发明的另一个优选方面,所述压力引入通道可以包括形成在所述定涡旋的周壁部中的至少一个孔,所述孔的一端敞开至所述预定区域,所述孔的另一端在所述动涡旋与所述定涡旋接合时能够由所述动涡旋端板封闭。For example, according to another preferred aspect of the present invention, the pressure introduction passage may include at least one hole formed in a peripheral wall portion of the fixed scroll, one end of the hole being open to the predetermined region, the hole The other end can be closed by the orbiting scroll end plate when the orbiting scroll is engaged with the fixed scroll.
例如,根据本发明的另一个优选方面,所述预定区域可以为所述壳体内的排气压力区。For example, in accordance with another preferred aspect of the invention, the predetermined area may be an exhaust pressure zone within the housing.
例如,根据本发明的另一个优选方面,在所述定涡旋的周壁部的与所述动涡旋端板相对的端面上可以形成有与所述至少一个孔的另一端流体连通的至少一个凹槽。优选地,所述至少一个凹槽可以在所述定涡旋的周壁部中沿周向方向延伸。进一步优选地,所述至少一个凹槽的总的周长可以大致等于所述动涡旋的外径。 For example, according to another preferred aspect of the present invention, at least one of fluid communication with the other end of the at least one hole may be formed on an end surface of the peripheral wall portion of the fixed scroll opposite to the movable scroll end plate Groove. Preferably, the at least one groove may extend in a circumferential direction in a peripheral wall portion of the fixed scroll. Further preferably, the total circumference of the at least one groove may be substantially equal to the outer diameter of the orbiting scroll.
例如,根据本发明的另一个优选方面,在所述动涡旋端板的与所述定涡旋的周壁部相对的端面上可以形成有与所述至少一个孔的另一端流体连通的至少一个凹槽。For example, according to another preferred aspect of the present invention, at least one of fluid communication with the other end of the at least one hole may be formed on an end surface of the movable scroll end plate opposite to a peripheral wall portion of the fixed scroll Groove.
例如,根据本发明的另一个优选方面,所述压力引入通道可以包括形成在所述动涡旋叶片中的至少一个孔,所述孔的一端敞开至所述背压腔,所述孔的另一端在所述动涡旋与所述定涡旋接合时能够由所述定涡旋端板封闭。For example, according to another preferred aspect of the present invention, the pressure introduction passage may include at least one hole formed in the orbiting scroll blade, one end of the hole being open to the back pressure chamber, and the other of the hole One end can be closed by the fixed scroll end plate when the movable scroll is engaged with the fixed scroll.
例如,根据本发明的另一个优选方面,所述预定区域可以为所述一系列压缩腔中的位于径向内侧的压缩腔。For example, in accordance with another preferred aspect of the present invention, the predetermined area may be a radially inner compression chamber of the series of compression chambers.
例如,根据本发明的另一个优选方面,在所述动涡旋叶片的端面上可以形成有与所述至少一个孔的另一端流体连通的至少一个凹槽。优选地,所述至少一个凹槽可以沿所述动涡旋叶片的螺旋方向延伸。进一步优选地,所述至少一个凹槽的总的周长可以大致等于所述动涡旋的外径。For example, in accordance with another preferred aspect of the present invention, at least one groove in fluid communication with the other end of the at least one aperture may be formed on an end surface of the orbiting scroll blade. Preferably, the at least one groove may extend in a spiral direction of the orbiting scroll blade. Further preferably, the total circumference of the at least one groove may be substantially equal to the outer diameter of the orbiting scroll.
例如,根据本发明的另一个优选方面,所述背压腔可以形成在所述主轴承座内的空间中并且经由形成在所述动涡旋端板中的连通孔与所述一系列压缩腔中的一个压缩腔流体连通。For example, according to another preferred aspect of the present invention, the back pressure chamber may be formed in a space in the main bearing housing and via the communication hole formed in the movable scroll end plate and the series of compression chambers One of the compression chambers is in fluid communication.
例如,根据本发明的另一个优选方面,所述定涡旋的周壁部的至少一部分可以与所述主轴承座的第一部分密封地接合以形成第一密封部,并且所述动涡旋的毂部的至少一部分可以与所述主轴承座的第二部分密封地接合以形成第二密封部。For example, according to another preferred aspect of the present invention, at least a portion of the peripheral wall portion of the fixed scroll may be sealingly engaged with the first portion of the main bearing housing to form a first seal portion, and the movable scroll hub At least a portion of the portion may sealingly engage the second portion of the main bearing housing to form a second seal.
例如,根据本发明的另一个优选方面,所述涡旋压缩机可以进一步包括流体入口配件,所述流体入口配件与所述定涡旋密封地连接。For example, in accordance with another preferred aspect of the present invention, the scroll compressor may further include a fluid inlet fitting that is sealingly coupled to the fixed scroll.
例如,根据本发明的另一个优选方面,所述涡旋压缩机可以为高压侧压缩机。For example, according to another preferred aspect of the invention, the scroll compressor may be a high pressure side compressor.
尽管在此已详细描述本发明的各种实施方式,但是应该理解本发明并不局限于这里详细描述和示出的具体实施方式,在不偏离本发明的实质和范围的情况下可由本领域的技术人员实现其它的变型和变体。所有这些变型和变体都落入本发明的范围内。而且,所有在此描述的构件都可以由其他技术性上等同的构件来代替。 Although the various embodiments of the present invention have been described in detail herein, it is understood that the invention The skilled person implements other variations and variants. All such variations and modifications are intended to fall within the scope of the invention. Moreover, all of the components described herein can be replaced by other technically equivalent components.

Claims (18)

  1. 一种涡旋压缩机(100),包括:A scroll compressor (100) comprising:
    壳体(10);Housing (10);
    设置在所述壳体(10)内的压缩机构(CM),所述压缩机构(CM)包括定涡旋(20)和动涡旋(30),其中所述定涡旋(20)包括定涡旋端板(24)和形成在所述定涡旋端板(24)第一侧的定涡旋叶片(26),所述动涡旋(30)包括动涡旋端板(34)和形成在所述动涡旋端板(34)第一侧的动涡旋叶片(36),并且其中所述定涡旋叶片(26)与所述动涡旋叶片(36)相互接合以在其间形成一系列能够对流体进行压缩的压缩腔;a compression mechanism (CM) disposed within the housing (10), the compression mechanism (CM) including a fixed scroll (20) and an orbiting scroll (30), wherein the fixed scroll (20) includes a scroll end plate (24) and a fixed scroll blade (26) formed on a first side of the fixed scroll end plate (24), the movable scroll (30) including an orbiting scroll end plate (34) and An orbiting scroll blade (36) formed on a first side of the orbiting scroll end plate (34), and wherein the fixed scroll blade (26) and the orbiting scroll blade (36) are engaged with each other therebetween Forming a series of compression chambers capable of compressing the fluid;
    主轴承座(50),所述主轴承座(50)适于支撑所述定涡旋(20);a main bearing housing (50), the main bearing housing (50) is adapted to support the fixed scroll (20);
    背压腔(B),所述背压腔(B)形成在所述动涡旋端板(34)的相反的第二侧并且适于向所述动涡旋端板的第二侧施加背压力以使得所述动涡旋(30)与所述定涡旋(20)接合;以及a back pressure chamber (B) formed on an opposite second side of the orbiting scroll end plate (34) and adapted to apply a back to the second side of the orbiting scroll end plate Pressing to engage the orbiting scroll (30) with the fixed scroll (20);
    压力引入通道(P),所述压力引入通道(P)设置在所述压缩机构(CM)中并且能够在所述背压腔(B)与所述壳体(10)中的预定区域之间提供选择性地流体连通,其中所述预定区域的压力大于所述涡旋压缩机的吸气压力。a pressure introduction passage (P) disposed in the compression mechanism (CM) and capable of being between the back pressure chamber (B) and a predetermined area in the housing (10) Selective fluid communication is provided, wherein the predetermined region has a pressure greater than an inspiratory pressure of the scroll compressor.
  2. 如权利要求1所述的涡旋压缩机,其中所述压力引入通道(P)构造成:在所述动涡旋(30)发生倾覆时在所述背压腔(B)与所述预定区域之间形成流体连通,而在所述动涡旋(30)与所述定涡旋(20)接合时切断所述背压腔(B)与所述预定区域之间的流体连通。The scroll compressor according to claim 1, wherein said pressure introduction passage (P) is configured to: said back pressure chamber (B) and said predetermined region when said movable scroll (30) is tipped Fluid communication is formed therebetween, and fluid communication between the back pressure chamber (B) and the predetermined region is severed when the orbiting scroll (30) is engaged with the fixed scroll (20).
  3. 如权利要求2所述的涡旋压缩机,其中所述压力引入通道(P)形成在所述定涡旋(20)中。A scroll compressor according to claim 2, wherein said pressure introduction passage (P) is formed in said fixed scroll (20).
  4. 如权利要求3所述的涡旋压缩机,其中所述压力引入通道(P)包括形成在所述定涡旋(20)的周壁部(22)中的至少一个孔(25),所述孔(25)的一端(251)敞开至所述预定区域,所述孔(25)的另一端(252) 在所述动涡旋(30)与所述定涡旋(20)接合时能够由所述动涡旋端板(34)封闭。The scroll compressor according to claim 3, wherein said pressure introduction passage (P) includes at least one hole (25) formed in a peripheral wall portion (22) of said fixed scroll (20), said hole One end (251) of (25) is open to the predetermined area, and the other end (252) of the hole (25) The movable scroll (30) can be closed by the orbiting scroll end plate (34) when it is engaged with the fixed scroll (20).
  5. 如权利要求4所述的涡旋压缩机,其中所述预定区域为所述壳体内的排气压力区。The scroll compressor of claim 4, wherein said predetermined area is an exhaust pressure zone within said housing.
  6. 如权利要求4所述的涡旋压缩机,其中在所述定涡旋(20)的周壁部(22)的与所述动涡旋端板(34)相对的端面上形成有与所述至少一个孔(25)的另一端(252)流体连通的至少一个凹槽(27)。The scroll compressor according to claim 4, wherein at least an end surface of said peripheral wall portion (22) of said fixed scroll (20) opposite said movable scroll end plate (34) is formed with said at least At least one groove (27) in fluid communication with the other end (252) of one of the holes (25).
  7. 如权利要求6所述的涡旋压缩机,其中所述至少一个凹槽(27)在所述定涡旋(20)的周壁部(22)中沿周向方向延伸。The scroll compressor according to claim 6, wherein said at least one groove (27) extends in a circumferential direction in a peripheral wall portion (22) of said fixed scroll (20).
  8. 如权利要求7所述的涡旋压缩机,其中所述至少一个凹槽(27)的总的周长大致等于所述动涡旋(30)的外径。A scroll compressor according to claim 7, wherein a total circumference of said at least one groove (27) is substantially equal to an outer diameter of said orbiting scroll (30).
  9. 如权利要求4所述的涡旋压缩机,其中在所述动涡旋端板(34)的与所述定涡旋(20)的周壁部(22)相对的端面上形成有与所述至少一个孔(25)的另一端(252)流体连通的至少一个凹槽(37)。The scroll compressor according to claim 4, wherein at least an end surface of said movable scroll end plate (34) opposite to a peripheral wall portion (22) of said fixed scroll (20) is formed with said at least At least one groove (37) in fluid communication with the other end (252) of one of the holes (25).
  10. 如权利要求3所述的涡旋压缩机,其中所述压力引入通道(P)包括形成在所述动涡旋叶片(36)中的至少一个孔(33),所述孔(33)的一端(331)敞开至所述背压腔(B),所述孔(33)的另一端(332)在所述动涡旋(30)与所述定涡旋(20)接合时能够由所述定涡旋端板(24)封闭。A scroll compressor according to claim 3, wherein said pressure introduction passage (P) includes at least one hole (33) formed in said orbiting scroll blade (36), one end of said hole (33) (331) opening to the back pressure chamber (B), the other end (332) of the hole (33) being capable of being engaged by the movable scroll (30) when engaged with the fixed scroll (20) The fixed scroll end plate (24) is closed.
  11. 如权利要求10所述的涡旋压缩机,其中所述预定区域为所述一系列压缩腔中的位于径向内侧的压缩腔。A scroll compressor according to claim 10, wherein said predetermined area is a compression chamber located radially inward of said series of compression chambers.
  12. 如权利要求10所述的涡旋压缩机,其中在所述动涡旋叶片(36) 的端面上形成有与所述至少一个孔(33)的另一端(332)流体连通的至少一个凹槽(37)。A scroll compressor according to claim 10, wherein said orbiting scroll blade (36) At least one groove (37) is formed in the end face in fluid communication with the other end (332) of the at least one hole (33).
  13. 如权利要求12所述的涡旋压缩机,其中所述至少一个凹槽(37)沿所述动涡旋叶片(36)的螺旋方向延伸。A scroll compressor according to claim 12, wherein said at least one groove (37) extends in a spiral direction of said orbiting scroll blade (36).
  14. 如权利要求12所述的涡旋压缩机,其中所述至少一个凹槽(37)的总的周长大致等于所述动涡旋(30)的外径。A scroll compressor according to claim 12, wherein a total circumference of said at least one groove (37) is substantially equal to an outer diameter of said movable scroll (30).
  15. 如权利要求1-14中任一项所述的涡旋压缩机,其中所述背压腔(B)形成在所述主轴承座(50)内的空间中并且经由形成在所述动涡旋端板(34)中的连通孔(35)与所述一系列压缩腔中的一个压缩腔流体连通。The scroll compressor according to any one of claims 1 to 14, wherein the back pressure chamber (B) is formed in a space in the main bearing housing (50) and via the movable scroll A communication hole (35) in the end plate (34) is in fluid communication with one of the series of compression chambers.
  16. 如权利要求15所述的涡旋压缩机,其中所述定涡旋(20)的周壁部(22)的至少一部分与所述主轴承座(50)的第一部分(52)密封地接合以形成第一密封部(S1),并且所述动涡旋(30)的毂部(32)的至少一部分与所述主轴承座(50)的第二部分(54)密封地接合以形成第二密封部(S2)。A scroll compressor according to claim 15, wherein at least a portion of a peripheral wall portion (22) of said fixed scroll (20) is sealingly engaged with said first portion (52) of said main bearing housing (50) to form a first seal (S1), and at least a portion of the hub (32) of the orbiting scroll (30) sealingly engages a second portion (54) of the main bearing housing (50) to form a second seal Department (S2).
  17. 如权利要求1-14中任一项所述的涡旋压缩机,进一步包括流体入口配件(17),所述流体入口配件(17)与所述定涡旋(20)密封地连接。A scroll compressor according to any one of claims 1 to 14, further comprising a fluid inlet fitting (17), the fluid inlet fitting (17) being sealingly connected to the fixed scroll (20).
  18. 如权利要求1-14中任一项所述的涡旋压缩机,其中所述涡旋压缩机为高压侧压缩机。 A scroll compressor according to any one of claims 1 to 14, wherein the scroll compressor is a high pressure side compressor.
PCT/CN2014/088630 2013-12-12 2014-10-15 Scroll compressor WO2015085823A1 (en)

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CN201320822178.5U CN203614399U (en) 2013-12-12 2013-12-12 Scroll compressor

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US10830237B2 (en) 2017-06-21 2020-11-10 Lg Electronics Inc. Compressor having integrated flow path structure
EP3418572A1 (en) * 2017-06-22 2018-12-26 LG Electronics Inc. Compressor having lubrication structure for thrust surface
US10697455B2 (en) 2017-06-22 2020-06-30 Lg Electronics Inc. Compressor having lubrication structure for thrust surface
US10808698B2 (en) 2017-06-23 2020-10-20 Lg Electronics Inc. Scroll compressor having communication groove in orbiting end plate
US10851789B2 (en) 2017-07-10 2020-12-01 Lg Electronics Inc. Compressor having improved discharge structure including discharge inlets, communication hole, and discharge outlet
US10816000B2 (en) 2017-07-24 2020-10-27 Lg Electronics Inc. Compressor having centrifugation structure for supplying oil
EP3647594A1 (en) * 2018-10-30 2020-05-06 LG Electronics Inc. Compressor
CN111120306A (en) * 2018-10-30 2020-05-08 Lg电子株式会社 Compressor with a compressor housing having a plurality of compressor blades
CN111120306B (en) * 2018-10-30 2021-12-21 Lg电子株式会社 Compressor
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