WO2019148947A1 - 压缩机构和具有其的压缩机 - Google Patents

压缩机构和具有其的压缩机 Download PDF

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Publication number
WO2019148947A1
WO2019148947A1 PCT/CN2018/117191 CN2018117191W WO2019148947A1 WO 2019148947 A1 WO2019148947 A1 WO 2019148947A1 CN 2018117191 W CN2018117191 W CN 2018117191W WO 2019148947 A1 WO2019148947 A1 WO 2019148947A1
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Prior art keywords
valve
working chamber
compression mechanism
exhaust
disposed
Prior art date
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PCT/CN2018/117191
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English (en)
French (fr)
Inventor
梅佩佩
Original Assignee
广东美芝制冷设备有限公司
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Publication date
Priority claimed from CN201810107951.7A external-priority patent/CN108343607B/zh
Priority claimed from CN201820198774.3U external-priority patent/CN207847942U/zh
Application filed by 广东美芝制冷设备有限公司 filed Critical 广东美芝制冷设备有限公司
Publication of WO2019148947A1 publication Critical patent/WO2019148947A1/zh

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    • 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
    • F04C18/30—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members
    • F04C18/34—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members
    • F04C18/356—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the outer member
    • 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
    • F04C29/12—Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet

Definitions

  • the present disclosure relates to the field of heat exchange technology, and in particular to a compression mechanism and a compressor having the same.
  • the present disclosure is intended to address at least one of the technical problems existing in the prior art. To this end, the present disclosure proposes a compression mechanism that has the advantages of high heat exchange efficiency, low cost, and high cost performance.
  • the present disclosure also proposes a compressor having the above compression mechanism.
  • a compression mechanism includes: a cylinder having a first working chamber, a vane slot, and a valve spool, the first working chamber having a first intake port and a first exhaust port
  • the air valve slot is disposed at an outer end of the sliding slot and communicates with the sliding slot, the air valve slot is open at least on an axial side of the cylinder, and the air valve slot is in the a dimension of the sliding groove in a thickness direction is larger than a thickness of the sliding groove;
  • a piston the piston is eccentrically disposed in the first working cavity; and a sliding piece, the sliding piece is reciprocally disposed on the a sliding groove, a front end of the sliding plate abutting against the piston, a portion of the sliding groove at an end of the sliding piece forming a second working chamber;
  • a valve assembly the valve assembly In the valve spool, the gas valve assembly has a second suction port that can be opened and closed and communicates with the second working chamber, and a second exhaust port that can
  • the compression mechanism according to an embodiment of the present disclosure has advantages of high heat exchange efficiency, low cost, and high cost performance.
  • compression mechanism according to the above embodiment of the present disclosure may further have the following additional technical features:
  • the gas valve assembly includes: a valve plate, the second suction port and the second exhaust port are provided on the valve plate; an intake valve piece, the suction valve a sheet is disposed on a side of the valve plate facing the sliding groove for opening and closing the second suction port; an exhaust valve piece, the exhaust valve piece is disposed on a back of the valve plate One side of the sliding slot is configured to open and close the second exhaust port.
  • the gas valve assembly further includes: a lift limiter disposed on a side of the valve plate facing away from the slide groove, And limiting an extreme position of the exhaust valve to open the second exhaust port.
  • a side of the valve plate facing away from the sliding groove is provided with an exhaust valve seat, and the exhaust valve piece and the lift limiter are disposed on the exhaust valve Inside the seat.
  • the inhalation valve piece has a moving portion for opening and closing the second suction port, the moving portion includes a root, a waist and a head which are sequentially connected, the head and the second Corresponding to the position of the suction port, the root portion is provided with a vent hole and the second exhaust port communicates with the second working chamber through the vent hole.
  • a side of the valve plate facing the sliding groove is provided with an annular groove surrounding the second suction port.
  • the valve plate is provided with an exhaust passage that communicates with the second exhaust port.
  • the cylinder is provided with an intake passage that communicates with the second intake port.
  • the gas valve assembly is mounted in the valve spool by a screw.
  • the screw is a set screw
  • the cylinder is provided with a screw mounting hole, and the set screw fits in the screw mounting hole and presses the gas valve assembly into the valve mounting groove .
  • a compressor proposed according to an embodiment of the second aspect of the present disclosure includes a compression mechanism according to the above embodiment of the present disclosure.
  • the compressor according to the embodiment of the second aspect of the present disclosure has advantages of high heat exchange efficiency, low cost, and high cost performance by utilizing the compression mechanism according to the embodiment of the first aspect of the present disclosure.
  • FIG. 1 is a schematic view showing the working principle of a compression mechanism according to an embodiment of the present disclosure
  • FIG. 2 is a schematic structural view of a compression mechanism according to an embodiment of the present disclosure
  • FIG. 3 is a schematic exploded view of a compression mechanism in accordance with an embodiment of the present disclosure.
  • FIG. 4 is a top plan view of a valve plate of a compression mechanism in accordance with an embodiment of the present disclosure
  • FIG. 5 is a schematic structural view of a second suction port of a compression mechanism according to an embodiment of the present disclosure
  • FIG. 6 is another schematic structural view of a second suction port of a compression mechanism according to an embodiment of the present disclosure
  • FIG. 7 is a bottom view of a valve plate of a compression mechanism in accordance with an embodiment of the present disclosure.
  • FIG. 8 is a schematic structural view of an intake valve piece of a compression mechanism according to an embodiment of the present disclosure.
  • FIG. 9 is a schematic structural view of an intake valve piece of a compression mechanism according to another embodiment of the present disclosure.
  • connection In the description of the present disclosure, it should be noted that the terms “installation”, “connected”, and “connected” are to be understood broadly, and may be fixed or detachable, for example, unless otherwise explicitly defined and defined. Connected, or integrally connected; can be mechanical or electrical; can be directly connected, or indirectly connected through an intermediate medium, can be the internal communication of the two components.
  • Connected, or integrally connected can be mechanical or electrical; can be directly connected, or indirectly connected through an intermediate medium, can be the internal communication of the two components.
  • the specific meanings of the above terms in the present disclosure can be understood in the specific circumstances by those skilled in the art.
  • a compression mechanism 100 in accordance with an embodiment of the present disclosure is described below with reference to FIGS.
  • a compression mechanism 100 in accordance with an embodiment of the present disclosure includes a cylinder 10, a piston 20, a slide 30, and a valve assembly 40.
  • the compression mechanism 100 can be used in a compressor.
  • the cylinder 10 has a first working chamber 11, a vane slot 12 and a valve spool 13.
  • the first working chamber 11 has a first intake port 111 and a first exhaust port 112, and the valve spool 13 is disposed in the vane slot 12.
  • the outer end is in communication with the vane groove 12, and the gas valve groove 13 is open at least on one axial side of the cylinder 10, and the size of the gas valve groove 13 in the thickness direction of the vane groove 12 is larger than the thickness of the vane groove 12.
  • the piston 20 is eccentrically rotatably disposed in the first working chamber 11.
  • the sliding piece 30 is reciprocally disposed on the sliding slot 12, and the leading end of the sliding plate 30 abuts against the piston 20, and the sliding groove 12 is located on the sliding plate 30.
  • the end portion forms a second working chamber 14
  • the gas valve assembly 40 is disposed in the valve spool 13 .
  • the gas valve assembly 40 has a second suction port 411 that can be opened and closed and communicates with the second working chamber 14 and can be opened and closed and
  • the second working chamber 14 is connected to the second exhaust port 412.
  • the first working chamber 11 is disposed inside the cylinder 10, and the first working chamber 11 is formed as a cylindrical cavity, the piston 20 is disposed in a circular shape, and the outer peripheral wall of the piston 20 is Rolling along the inner wall of the first working chamber 11, the center of rotation of the piston 20 is different from the center of the first working chamber 11, whereby the piston 20 is eccentrically rotated within the first working chamber 11.
  • the slider slot 12 is in communication with the first working chamber 11, and the slider 30 reciprocates along the length direction of the slider slot 12.
  • the tip end of the slider 30 refers to the end of the slider 30 adjacent to the first working chamber 11, and the slider 30
  • the end and the vane slot 12 together define a second working chamber 14.
  • the valve spool 13 is disposed at an end of the vane slot 12 away from the first working chamber 11 and the valve spool 13 is in communication with the vane slot 12, the valve assembly 40 is fixed in the valve spool 13, and the valve assembly 40 is provided with a first
  • the second air inlet 411 and the second air outlet 412 are openable and closable and communicate with the second working chamber 14.
  • the second air outlet 412 can be opened and closed and communicates with the second working chamber 14.
  • the compression mechanism 100 When the compression mechanism 100 is in operation, as the piston 20 is eccentrically rotated in the first working chamber 11, the volume in the first working chamber 11 is constantly changed, so that the air in the first working chamber 11 is compressed or expanded, and the compressor is compressed.
  • An intake port 111 opens a low-pressure refrigerant into the first working chamber 11, and the low-pressure refrigerant is compressed by the cylinder 10 to form a high-pressure refrigerant, and the high-pressure refrigerant is discharged from the first exhaust port 112 to the outside of the cylinder 10.
  • the slider 30 often abuts against the piston 20, when the compression mechanism 100 is in operation, the cylinder 10 is always in the loading operation state.
  • the direction “inner” can be understood as a direction toward the center of the cylinder 10, and the opposite direction is defined as "outer", that is, a direction away from the center of the cylinder 10.
  • the slider 30 While the piston 20 is rotating within the first working chamber 11, the slider 30 reciprocates within the slider slot 12.
  • the internal volume of the second working chamber 14 increases, and in the state where the second working chamber 14 is sealed on all sides, like the state of vacuuming, when the suction pressure ( That is, when the difference between the pressure in the external pipe of the compressor connected to the second suction port 411 and the pressure in the cavity of the second working chamber 14 is increased to a certain extent, the second suction port 411 on the gas valve assembly 40 is opened.
  • the second working chamber 14 begins an inhalation process in which the pressure in the second working chamber 14 is always less than the exhaust pressure of the compressor, and the second exhaust port 412 on the valve assembly 40 is in a closed state.
  • the volume of the second working chamber 14 begins to decrease, and the second working chamber 14 begins the compression process when the pressure in the second working chamber 14 reaches the compressor discharge pressure.
  • the second exhaust port 412 of the gas valve assembly 40 is opened, and the compressed gas in the second working chamber 14 is discharged.
  • the valve spool 13 communicates with the second working chamber 14, and the gas valve assembly 40 has an openable and closable And a second air inlet 411 communicating with the second working chamber 14 and a second exhaust port 412 that is openable and closable and communicating with the second working chamber 14 in the case where the piston 20 in the first working chamber 11 rotates once
  • the second working chamber 14 completes a reciprocating compression process, and the complete rotary compression and reciprocating compression are realized in the compression mechanism 100.
  • the compression mechanism 100 has high compression efficiency, simple installation, and low cost. Therefore, the compression mechanism 100 according to an embodiment of the present disclosure has advantages of high heat exchange efficiency, low cost, and high cost performance.
  • a compression mechanism 100 in accordance with an embodiment of the present disclosure is described in detail below with reference to FIGS.
  • the gas valve assembly 40 includes a valve plate 41, a suction valve piece 42, and an exhaust valve piece 43.
  • the second air inlet 411 and the second air outlet 412 are disposed on the valve plate 41, and the air suction valve piece 42 is disposed on a side of the valve plate 41 facing the slider slot 12 for opening and closing the second air suction.
  • the port 411, the exhaust valve piece 43 is provided on the side of the valve plate 41 facing away from the slider groove 12, for opening and closing the second exhaust port 412.
  • the second intake port 411 and the second exhaust port 412 are disposed through the valve plate 41, and the second intake port 411 and the second exhaust port 412 are arranged in the width direction of the valve plate 41 (in the front-rear direction in FIG. 7).
  • the second suction port 411 and the second exhaust port 412 are disposed corresponding to the slide groove 12.
  • the second suction port 411 may be formed by sealing a tapered hole and a tapered suction pipe. As shown in FIG. 6, the second suction port 411 may also be a straight hole, by pressing the expansion pipe into the hole. Sealed, both are common sealing methods.
  • the inhalation valve piece 42 has a moving portion 421 for opening and closing the second air inlet 411.
  • the moving portion 421 includes a root portion 4121, a waist portion 4212, and a head portion 4213 which are sequentially connected, and the head portion 4213 corresponds to the position of the second intake port 411, the root portion 4211 is provided with a vent hole, and the second exhaust port 412 is communicated with the second working chamber 14 through the vent hole.
  • the root portion 4211 of the moving portion 421 is connected to the inhalation valve piece 42, the waist portion 4212 and the head portion 4213 of the moving portion 421 are separated from the inhalation valve piece 42, the inhalation valve piece 42 has elasticity, and the moving portion 421 can be deformed.
  • the head portion 4213 of the moving portion 421 which is not deformed is in close contact with one side of the valve plate 41 adjacent to the slider groove 12, and the head portion 4213 of the moving portion 421 covers the second suction port 411 to block the outside air from passing through the second suction
  • the port 411 is drawn into the second working chamber 14.
  • the volume of the second working chamber 14 increases, and in a state where the second working chamber 14 is sealed on all sides, as in the state of vacuuming,
  • the suction pressure ie, the pressure in the suction port connected to the external pipe of the compressor
  • the pressure in the cavity of the second working chamber 14 is sufficient to overcome the elastic force of the moving portion 421 of the suction valve piece 42
  • the moving portion 421 is directed to The direction away from the valve plate 41 is deformed.
  • the head portion 4213 of the moving portion 421 no longer covers the second air inlet 411, that is, the second air inlet 411 is in an open state, and the gas outside the cylinder 10 can be second.
  • the suction port 411 is sucked into the second working chamber 14, and the air pressure in the second working chamber 14 is gradually increased until the pressure difference between the air pressure in the second working chamber 14 and the outside is reduced, so that the moving portion 421 is restored to the original state, and the second The suction port 411 is closed.
  • the side of the valve plate 41 facing the slider groove 12 is provided with an annular groove 414 surrounding the second suction port 411.
  • Lubricating oil is stored in the annular groove 414, and the lubricating oil can enhance the seal between the suction valve assembly 40 plate and the second suction port 411.
  • the exhaust valve piece 43 will be described below.
  • the exhaust valve piece 43 is disposed between the lift limiter 44 and the valve plate 41.
  • the exhaust valve piece 43 has elasticity, and the exhaust valve piece 43 is disposed close to the side of the valve plate 41 away from the slide groove 12, and is exhausted.
  • the valve plate 43 is capped on the second exhaust port 412 without being deformed to prevent the gas in the second working chamber 14 from being discharged from the second exhaust port 412.
  • the volume of the second working chamber 14 begins to decrease, the second working chamber 14 begins to compress the air, and the pressure in the second working chamber 14
  • the exhaust valve piece 43 is deformed in a direction away from the valve plate 41 by the pressure difference, and at this time, the exhaust valve piece 43 no longer covers the second exhaust port 412, so that the second Air within the working chamber 14 may be exhausted by the second exhaust port 412.
  • the exhaust of the second working chamber 14 can be automatically controlled, and the structure is simple and the installation is convenient.
  • the gas valve assembly 40 further includes a lift limiter 44.
  • the lift stopper 44 is provided on a side of the valve plate 41 facing away from the slider groove 12 for restricting the limit position at which the exhaust valve piece 43 opens the second exhaust port 412.
  • the exhaust valve piece 43 stops against the lift limiter 44 after a certain degree of deformation, whereby the angle of deformation of the exhaust valve piece 43 can be controlled to control the flow rate of the second exhaust port 412. effect.
  • the side of the valve plate 41 facing away from the slider groove 12 is provided with an exhaust valve seat 413, and the exhaust valve piece 43 and the lift limiter 44 are disposed at the exhaust Inside the valve seat 413.
  • the exhaust valve seat 413 is recessed from the valve plate 41, the exhaust valve piece 43 and the lift limiter 44 are housed in the exhaust valve seat 413, and the exhaust valve piece 43 and the lift limiter 44 are riveted.
  • the device is fixed in the exhaust valve seat 413, and the exhaust valve seat 413 functions as a support for the exhaust valve piece 43 and the lift limiter 44, and can also improve space utilization and save installation space.
  • the compression mechanism 100 further includes a sealing gasket 45 which is disposed in the air valve groove 13 and is located on a side of the gas valve assembly 40 facing the sliding groove 12, and the sealing gasket 45 seals the air valve.
  • a gap between the assembly 40 and the inner wall of the valve spool 13 and a second suction port 411 and a second exhaust port 412 are communicated with the second working chamber 14, respectively. Thereby, the sealing property between the gas valve assembly 40 and the inner wall of the gas valve groove 13 is good.
  • valve assembly 40 and the valve spool 13 may be assembled in a manner of welding, interference fit, screw connection, or clearance fit.
  • the gas valve assembly 40 is mounted within the valve spool 13 by screws.
  • the screw is a fixing screw
  • the cylinder is provided with a screw mounting hole 15 and a screw hole.
  • the fixing screw passes through the screw mounting hole 15 on the cylinder 10 and the screw on the valve plate 41 makes the hole 151 Engaged with the threaded holes in the cylinder 10 to assemble the valve assembly 40 with the valve spool 13.
  • a clearance fit can be employed between the gas valve assembly 40 and the valve spool 13 while the gas valve assembly 40 is secured with set screws.
  • the screw is a set screw
  • the cylinder 10 is provided with a threaded hole
  • the set screw is fitted
  • the gas valve assembly 40 is pressed into the gas valve groove 13 in the threaded hole.
  • the gap between the gas valve assembly 40 and the valve spool 13 is very small, and the gas of the second working chamber 14 cannot be discharged from the gap, so that the valve plate is provided with an exhaust passage 415 for exhaust.
  • the valve plate 41 is provided with an exhaust passage 415 that communicates with the second exhaust port 412.
  • the exhaust passage 415 is formed by a groove on the valve plate 41 that communicates with the second exhaust port 412, and the compressed refrigerant gas can be discharged through the exhaust passage 415 through the second exhaust port 412.
  • the cylinder 10 is provided with an intake passage 16 that communicates with the second intake port 411.
  • One end of the inhalation passage 16 communicates with the second intake port 411, and the other end of the intake passage 16 communicates with the outside of the cylinder 10.
  • the intake passage 16 is disposed through the cylinder 10, and the refrigerant gas can pass through the second intake port through the intake passage 16. 411 enters the second working chamber 14.
  • a compressor proposed according to an embodiment of the second aspect of the present disclosure includes the compression mechanism 100 according to the above embodiment of the present disclosure.
  • the compressor according to the embodiment of the second aspect of the present disclosure has advantages of high heat exchange efficiency, low cost, and high cost performance by utilizing the compression mechanism 100 according to the embodiment of the first aspect of the present disclosure.

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  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Applications Or Details Of Rotary Compressors (AREA)

Abstract

一种压缩机构(100)和具有其的压缩机，压缩机构(100)包括：具有第一工作腔(11)、滑片槽(12)和气阀槽(13)的气缸（10），第一工作腔(11)具有第一吸气口(111)和第一排气口(112)，气阀槽(13)设在滑片槽(12)的外端且与滑片槽(12)连通，气阀槽(13)在滑片槽(12)的厚度方向上的尺寸大于滑片槽(12)的厚度；可偏心转动地设于第一工作腔(11)内的活塞(20)；可往复运动地设于滑片槽(12)的滑片(30)，滑片(30)的先端止抵于活塞(20)，滑片槽(12)的位于滑片(30)的末端的部分形成第二工作腔(14)；设于气阀槽(13)的气阀组件(40)，气阀组件(40)具有可开闭且与第二工作腔(14)连通的第二吸气口(411)和第二排气口(412)。

Description

压缩机构和具有其的压缩机 技术领域
本公开涉及换热技术领域，具体地，涉及一种压缩机构和具有其的压缩机。
背景技术
相关技术中，为了提升空调***在低温环境下制热能力，采用双缸补气方式的压缩机得到应用，但现有技术存在成本高，换热效率低、性价比低等缺陷，有文献提出采用单缸补气方式解决成本偏高的问题，但单缸补气压缩腔的吸排气方式如何解决成为技术瓶颈。
发明内容
本公开旨在至少解决现有技术中存在的技术问题之一。为此，本公开提出一种压缩机构，所述压缩机构具有换热效率高、成本低和性价比高等优点。
本公开还提出了一种具有上述压缩机构的压缩机。
根据本公开第一方面实施例提出的压缩机构包括：气缸，所述气缸具有第一工作腔、滑片槽和气阀槽，所述第一工作腔具有第一吸气口和第一排气口，所述气阀槽设在所述滑片槽的外端且与所述滑片槽连通，所述气阀槽至少在所述气缸的轴向一侧敞开，所述气阀槽在所述滑片槽的厚度方向上的尺寸大于所述滑片槽的厚度；活塞，所述活塞可偏心转动地设于所述第一工作腔内；滑片，所述滑片可往复运动地设于所述滑片槽，所述滑片的先端止抵于所述活塞，所述滑片槽的位于所述滑片的末端的部分形成第二工作腔；气阀组件，所述气阀组件设于所述气阀槽，所述气阀组件具有可开闭且与所述第二工作腔连通的第二吸气口以及可开闭且与所述第二工作腔连通的第二排气口。
根据本公开实施例的压缩机构具有换热效率高、成本低和性价比高等优点。
另外，根据本公开上述实施例的压缩机构还可以具有如下附加的技术特征：
根据本公开的一个实施例，所述气阀组件包括：阀板，所述第二吸气口和所述第二排气口设于所述阀板；吸气阀片，所述吸气阀片设于所述阀板的朝向所述滑片槽的一侧，用于开闭所述第二吸气口；排气阀片，所述排气阀片设于所述阀板的背向所述滑片槽的一侧，用于开闭所述第二排气口。
根据本公开的一个可选的示例，所述气阀组件还包括：升程限位器，所述升程限位器设于所述阀板的背向所述滑片槽的一侧，用于限制所述排气阀片打开所述第二排气口的极限位置。
根据本公开进一步的示例，所述阀板的背向所述滑片槽的一侧设有排气阀座，所述排气阀片和所述升程限位器设于所述排气阀座内。
可选地，所述吸气阀片具有用于开闭所述第二吸气口的运动部，所述运动部包括依次连接的根部、腰部和头部，所述头部与所述第二吸气口位置对应，所述根部设有排气孔且所述第二排气口通过所述排气孔与所述第二工作腔连通。
进一步地，所述阀板的朝向所述滑片槽的一侧设有围绕所述第二吸气口的环形凹槽。
根据本公开的一个实施例，所述阀板设有与所述第二排气口连通的排气通道。
根据本公开的一个实施例，所述气缸设有与所述第二吸气口连通的吸气通道。
根据本公开的一个实施例，所述气阀组件通过螺钉安装于所述气阀槽内。
进一步地，所述螺钉为紧定螺钉，所述气缸设有螺钉安装孔，所述紧定螺钉配合在所述螺钉安装孔内且将所述气阀组件抵压在所述气阀安装槽内。
根据本公开第二方面实施例提出的压缩机，包括根据本公开上述实施例的压缩机构。
根据本公开第二方面实施例的压缩机，通过利用根据本公开第一方面实施例的压缩机构，具有换热效率高、成本低和性价比高等优点。
本公开的附加方面和优点将在下面的描述中部分给出，部分将从下面的描述中变得明显，或通过本公开的实践了解到。
附图说明
本公开的上述和/或附加的方面和优点从结合下面附图对实施例的描述中将变得明显和容易理解，其中：
图1是根据本公开实施例的压缩机构的工作原理示意图；
图2是根据本公开实施例的压缩机构的结构示意图；
图3是根据本公开实施例的压缩机构的***示意图；
图4是根据本公开实施例的压缩机构的阀板的俯视图；
图5是根据本公开实施例的压缩机构的第二吸气口的结构示意图；
图6是根据本公开实施例的压缩机构的第二吸气口的另一种结构示意图；
图7是根据本公开实施例的压缩机构的阀板的仰视图；
图8是根据本公开实施例的压缩机构的吸气阀片的结构示意图；
图9是根据本公开另一个实施例的压缩机构的吸气阀片的结构示意图。
具体实施方式
下面详细描述本公开的实施例，所述实施例的示例在附图中示出，其中自始至终相同或类似的标号表示相同或类似的元件或具有相同或类似功能的元件。下面通过参考附图描述的实施例是示例性的，仅用于解释本公开，而不能理解为对本公开的限制。
在本公开的描述中，需要理解的是，术语“中心”、、“上”、“下”、“前”、“后”、“左”、“右”、“竖直”、“水平”、“顶”、“底”、“内”、“外”、“顺时针”、“逆时针”、“轴向”、“径向”、“周向”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本公开和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本公开的限制。此外，限定有“第一”、“第二”的特征可以明示或者隐含地包括一个或者更多个该特征。在本公开的描述中，除非另有说明，“多个”的含义是两个或两个以上。
在本公开的描述中，需要说明的是，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或一体地连接；可以是机械连接，也可以是电连接；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通。对于本领域的普通技术人员而言，可以具体情况理解上述术语在本公开中的具体含义。
下面参考图1-图9描述根据本公开实施例的压缩机构100。
如图1-图3所示，根据本公开实施例的压缩机构100包括：气缸10、活塞20、滑片30和气阀组件40。压缩机构100可以用于压缩机中。
其中，气缸10具有第一工作腔11、滑片槽12和气阀槽13，第一工作腔11具有第一吸气口111和第一排气口112，气阀槽13设在滑片槽12的外端且与滑片槽12连通，气阀槽13至少在气缸10的轴向一侧敞开，气阀槽13在滑片槽12的厚度方向上的尺寸大于滑片槽12的厚度。活塞20可偏心转动地设于第一工作腔11内，滑片30可往复运动地设于滑片槽12，滑片30的先端止抵于活塞20，滑片槽12的位于滑片30的末端的部分形成第二工作腔14，气阀组件40设于气阀槽13，气阀组件40具有可开闭且与第二工作腔14连通的第二吸气口411以及可开闭且与第二工作腔14连通的第二排气口412。
具体而言，如图1至图3所示，第一工作腔11设在气缸10内部，并且第一工作腔 11形成为圆柱形腔，活塞20设置为圆环形，活塞20的外周壁可沿第一工作腔11的内壁滚动，活塞20的转动中心与第一工作腔11的中心不同，由此活塞20在第一工作腔11内偏心转动。滑片槽12与第一工作腔11连通，滑片30沿滑片槽12的长度方向往复运动，滑片30的先端指的是滑片30邻近第一工作腔11的一端，滑片30的末端与滑片槽12共同限定出第二工作腔14。气阀槽13设在滑片槽12远离第一工作腔11的一端并且气阀槽13与滑片槽12连通，气阀组件40固定在气阀槽13内，气阀组件40上设置有第二吸气口411和第二排气口412，第二吸气口411可开闭并且与第二工作腔14连通，第二排气口412可开闭并且与第二工作腔14连通。
下面参考图1至图3描述根据本公开实施例的压缩机构100的工作原理。
压缩机构100运转时，随着活塞20在第一工作腔11内做偏心转动，第一工作腔11内的容积不断变化，因而第一工作腔11内的空气被压缩或扩容，压缩机由第一吸气口111向第一工作腔11内通入低压冷媒，低压冷媒经过气缸10的压缩后形成高压冷媒，高压冷媒由第一排气口112排出至气缸10外。这里，由于滑片30常止抵在活塞20上，如此，压缩机构100工作时，气缸10始终处于加载工作状态。其中，方向“内”可以理解为朝向气缸10中心的方向，其相反方向被定义为“外”，即远离气缸10中心的方向。
活塞20在第一工作腔11内转动的同时，滑片30在滑片槽12内进行往复运动。当滑片30在滑片槽12内朝向气缸10中心运动时，第二工作腔14内容积增大，在第二工作腔14四面密封的状态下，如同抽真空的状态，当吸气压力(即第二吸气口411连接的压缩机外部管道内的压力)与第二工作腔14的腔内压力之差增大到一定程度时，气阀组件40上的第二吸气口411打开，第二工作腔14开始吸气过程，在该过程中，第二工作腔14内的压力始终小于压缩机的排气压力，气阀组件40上的第二排气口412为关闭状态。当滑片30开始朝着远离气缸10中心的方向运动时，第二工作腔14容积开始减小，第二工作腔14开始压缩过程，当第二工作腔14内的压力达到压缩机排气压力时，气阀组件40的第二排气口412打开，第二工作腔14内压缩后的气体排出。
根据本公开实施例的压缩机构100，通过在气缸10上限定出第一工作腔11和第二工作腔14，气阀槽13与第二工作腔14连通，气阀组件40上具有可开闭且与第二工作腔14连通的第二吸气口411以及可开闭且与第二工作腔14连通的第二排气口412，在第一工作腔11内的活塞20旋转一周的情况下，第二工作腔14完成一次往复式压缩过程，完整的将旋转式压缩与往复式压缩在压缩机构100中实现，压缩机构100的压缩效率高，并且安装简单，成本低。因此，根据本公开实施例的压缩机构100具有换热效率高、成本低和性价比高等优点。
下面参考图1-图9详细描述根据本公开具体实施例的压缩机构100。
在本公开的一些实施例中，如图3-图8所示，气阀组件40包括：阀板41、吸气阀片42和排气阀片43。
具体地，第二吸气口411和第二排气口412设于阀板41，吸气阀片42设于阀板41的朝向滑片槽12的一侧，用于开闭第二吸气口411，排气阀片43设于阀板41的背向滑片槽12的一侧，用于开闭第二排气口412。第二吸气口411和第二排气口412贯通阀板41设置，并且第二吸气口411和第二排气口412沿阀板41的宽度方向(如图7中的前后方向)排列，并且第二吸气口411和第二排气口412与滑片槽12对应设置。
如图5所示，第二吸气口411可以是锥形孔与锥形吸气管密封形成，如图6所示，第二吸气口411也可以是直孔，通过将膨胀管压入密封得到，两种都是常用的密封方法。
可选地，如图8所示，吸气阀片42具有用于开闭第二吸气口411的运动部421，运动部421包括依次连接的根部4211、腰部4212和头部4213，头部4213与第二吸气口411位置对应，根部4211设有排气孔且第二排气口412通过排气孔与第二工作腔14连通。
其中，运动部421的根部4211与吸气阀片42连接，运动部421的腰部4212和头部4213与吸气阀片42相分隔，吸气阀片42具有弹性，运动部421可以产生形变。未产生形变的运动部421的头部4213紧贴阀板41的邻近滑片槽12的一面，并且运动部421的头部4213封盖第二吸气口411以阻止外界的气体通过第二吸气口411吸入第二工作腔14。当压缩机构100运转时，活塞20在第一工作腔11内转动，同时滑片30在滑片槽12内进行往复运动。当滑片30在滑片槽12内朝向第一工作腔11的中心运动时，第二工作腔14的容积增大，在第二工作腔14四面密封的状态下，如同抽成真空的状态，当吸气压力(即吸气口连接压缩机外部管道内的压力)与第二工作腔14的腔内压力之差足以克服吸气阀片42的运动部421的弹性力时，运动部421向远离阀板41的方向产生形变，此时运动部421的头部4213不再封盖第二吸气口411，也就是说第二吸气口411呈打开状态，气缸10外的气体可由第二吸气口411被吸入到第二工作腔14内，第二工作腔14内的气压逐渐增大，直至第二工作腔14内的气压与外界的压差缩小使得运动部421恢复原状，第二吸气口411关闭。
进一步地，如图7所示，阀板41的朝向滑片槽12的一侧设有围绕第二吸气口411的环形凹槽414。环形凹槽414内储存有润滑油，润滑油可以提高吸气阀组件40板与第二吸气口411之间密封的作用。
下面描述排气阀片43。排气阀片43设在升程限位器44和阀板41之间，排气阀片 43具有弹性，排气阀片43紧贴阀板41的远离滑片槽12的一面设置，排气阀片43在未变形的情况下封盖在第二排气口412上以阻止第二工作腔14内的气体由第二排气口412排出。在滑片30随活塞20运动的过程中，第二工作腔14吸气时，第二工作腔14内的压力始终小于压缩机的排气压力，排气阀片43未产生形变，第二排气口412为关闭状态。当滑片30开始朝着远离第一工作腔11的中心运动时，此时第二工作腔14容积开始减小，第二工作腔14开始对空气进行压缩，当第二工作腔14内的压力达到压缩机排气压力时，排气阀片43在压力差的作用下向远离阀板41的方向产生形变，此时排气阀片43不再封盖第二排气口412，使得第二工作腔14内的空气可以由第二排气口412排出。由此，第二工作腔14的排气可以自动控制，并且结构简单，安装方便。
可选地，如图3所示，气阀组件40还包括升程限位器44。升程限位器44设于阀板41的背向滑片槽12的一侧，用于限制排气阀片43打开第二排气口412的极限位置。排气阀片43在产生一定程度的形变后止抵在升程限位器44上，由此，可以控制排气阀片43形变的角度，以达到控制第二排气口412排气流量的作用。
根据本公开进一步的示例，如图4所示，阀板41的背向滑片槽12的一侧设有排气阀座413，排气阀片43和升程限位器44设于排气阀座413内。排气阀座413由阀板41向其内部凹陷得到，排气阀片43和升程限位器44容纳在排气阀座413内，排气阀片43和升程限位器44通过铆接装置固定于排气阀座413内，排气阀座413起到对排气阀片43和升程限位器44支撑限制的作用，还可以提高空间利用率，节省安装空间。
如图2所示，压缩机构100还包括密封垫片45，密封垫片45设于气阀槽13内且位于气阀组件40的朝向滑片槽12的一侧，密封垫片45密封气阀组件40与气阀槽13的内壁之间的间隙且将第二吸气口411和第二排气口412分别与第二工作腔14连通。由此，气阀组件40与气阀槽13的内壁之间的密封性较好。
在本公开的一些实施例中，气阀组件40与气阀槽13的装配方式可以为焊接、过盈配合、螺钉连接或者间隙配合等方式。
在本公开的一个实施例中，气阀组件40通过螺钉安装于气阀槽13内。
如图3和图4所示，螺钉是固定螺钉，气缸上设有螺钉安装孔15和螺纹孔，固定螺钉穿过气缸10上的螺钉安装孔15及阀板41上的螺钉让位孔151之后，与气缸10上的螺纹孔配合，以此将气阀组件40与气阀槽13装配在一起。
优选地，气阀组件40与气阀槽13之间可以采用间隙配合，同时以紧定螺钉固定气阀组件40。吸气阀片42和阀板41上无需设置螺钉让位孔151，气阀组件40与气阀槽13之间间隙配合，螺钉为紧定螺钉，气缸10设有螺纹孔，紧定螺钉配合在螺纹孔内且 将气阀组件40抵压在气阀槽13内。由此，气阀组件40与气阀槽13之间的装配过程更加简便，并且气阀组件40与气阀槽13之间的固定效果好。
气阀组件40与气阀槽13之间的间隙非常小，第二工作腔14的气体无法从间隙排出，因此阀板上设置有排气通道415用于排气。如图9所示，阀板41设有与第二排气口412连通的排气通道415。排气通道415由阀板41上与第二排气口412连通的凹槽形成，压缩后的冷媒气体可由通过第二排气口412经过排气通道415排出。
根据本公开的一个实施例，如图1所示，气缸10设有与第二吸气口411连通的吸气通道16。吸气通道16的一端与第二吸气口411连通，吸气通道16的另一端与气缸10外连通，吸气通道16贯穿气缸10设置，冷媒气体可由吸气通道16经过第二吸气口411进入第二工作腔14。
根据本公开第二方面实施例提出的压缩机，包括根据本公开上述实施例的压缩机构100。
根据本公开第二方面实施例的压缩机，通过利用根据本公开第一方面实施例的压缩机构100，具有换热效率高、成本低和性价比高等优点。
根据本公开实施例的压缩机构100的其他构成以及操作对于本领域普通技术人员而言都是已知的，这里不再详细描述。
在本说明书的描述中，参考术语“一个实施例”、“一些实施例”、“示意性实施例”、“示例”、“具体示例”、或“一些示例”等的描述意指结合该实施例或示例描述的具体特征、结构、材料或者特点包含于本公开的至少一个实施例或示例中。在本说明书中，对上述术语的示意性表述不一定指的是相同的实施例或示例。而且，描述的具体特征、结构、材料或者特点可以在任何的一个或多个实施例或示例中以合适的方式结合。
尽管已经示出和描述了本公开的实施例，本领域的普通技术人员可以理解：在不脱离本公开的原理和宗旨的情况下可以对这些实施例进行多种变化、修改、替换和变型，本公开的范围由权利要求及其等同物限定。

Claims (11)

  1. 一种压缩机构(100)，其特征在于，包括：
    气缸(10)，所述气缸(10)具有第一工作腔(11)、滑片槽(12)和气阀槽(13)，所述第一工作腔(11)具有第一吸气口(111)和第一排气口(112)，所述气阀槽(13)设在所述滑片槽(12)的外端且与所述滑片槽(12)连通，所述气阀槽(13)至少在所述气缸(10)的轴向一侧敞开，所述气阀槽(13)在所述滑片槽(12)的厚度方向上的尺寸大于所述滑片槽(12)的厚度；
    活塞(20)，所述活塞(20)可偏心转动地设于所述第一工作腔(11)内；
    滑片(30)，所述滑片(30)可往复运动地设于所述滑片槽(12)，所述滑片(30)的先端止抵于所述活塞(20)，所述滑片槽(12)的位于所述滑片(30)的末端的部分形成第二工作腔(14)；
    气阀组件(40)，所述气阀组件(40)设于所述气阀槽(13)，所述气阀组件(40)具有可开闭且与所述第二工作腔(14)连通的第二吸气口(411)以及可开闭且与所述第二工作腔(14)连通的第二排气口(412)。
  2. 根据权利要求1所述的压缩机构(100)，其特征在于，所述气阀组件(40)包括：
    阀板(41)，所述第二吸气口(411)和所述第二排气口(412)设于所述阀板(41)；
    吸气阀片(42)，所述吸气阀片(42)设于所述阀板(41)的朝向所述滑片槽(12)的一侧，用于开闭所述第二吸气口(411)；
    排气阀片(43)，所述排气阀片(43)设于所述阀板(41)的背向所述滑片槽(12)的一侧，用于开闭所述第二排气口(412)。
  3. 根据权利要求2所述的压缩机构(100)，其特征在于，所述气阀组件(40)还包括：
    升程限位器(44)，所述升程限位器(44)设于所述阀板(41)的背向所述滑片槽(12)的一侧，用于限制所述排气阀片(43)打开所述第二排气口(412)的极限位置。
  4. 根据权利要求3所述的压缩机构(100)，其特征在于，所述阀板(41)的背向所述滑片槽(12)的一侧设有排气阀座(413)，所述排气阀片(43)和所述升程限位器(44)设于所述排气阀座(413)内。
  5. 根据权利要求2所述的压缩机构(100)，其特征在于，所述吸气阀片(42)具有用于开闭所述第二吸气口(411)的运动部(421)，所述运动部(421)包括依次连 接的根部(4211)、腰部(4212)和头部(4213)，所述头部(4213)与所述第二吸气口(411)位置对应，所述根部(4211)设有排气孔且所述第二排气口(412)通过所述排气孔与所述第二工作腔(14)连通。
  6. 根据权利要求2所述的压缩机构(100)，其特征在于，所述阀板(41)的朝向所述滑片槽(12)的一侧设有围绕所述第二吸气口(411)的环形凹槽(414)。
  7. 根据权利要求2所述的压缩机构(100)，其特征在于，所述阀板(41)设有与所述第二排气口(412)连通的排气通道(415)。
  8. 根据权利要求1所述的压缩机构(100)，其特征在于，所述气缸(10)设有与所述第二吸气口(411)连通的吸气通道(16)。
  9. 根据权利要求1-8中任一项所述的压缩机构(100)，其特征在于，所述气阀组件(40)通过螺钉安装于所述气阀槽(13)内。
  10. 根据权利要求9所述的压缩机构(100)，其特征在于，所述螺钉为紧定螺钉，所述气缸(10)设有螺钉安装孔(15)，所述紧定螺钉配合在所述螺钉安装孔(15)内且将所述气阀组件(40)抵压在所述气阀槽(13)内。
  11. 一种压缩机，其特征在于，包括根据权利要求1-10中任一项所述的压缩机构(100)。
PCT/CN2018/117191 2018-02-02 2018-11-23 压缩机构和具有其的压缩机 WO2019148947A1 (zh)

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JP2000213487A (ja) * 1999-01-22 2000-08-02 Daikin Ind Ltd ロ―タリ圧縮機
CN105698425A (zh) * 2016-02-22 2016-06-22 广东美芝制冷设备有限公司 制冷装置
CN105889030A (zh) * 2016-05-30 2016-08-24 安徽美芝制冷设备有限公司 压缩机的吸排气阀组件及具有其的压缩机
CN107084133A (zh) * 2017-03-27 2017-08-22 广东美芝精密制造有限公司 压缩机和具有其的制冷装置
CN108343607A (zh) * 2018-02-02 2018-07-31 广东美芝制冷设备有限公司 压缩机构和具有其的压缩机

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JP2000213487A (ja) * 1999-01-22 2000-08-02 Daikin Ind Ltd ロ―タリ圧縮機
CN105698425A (zh) * 2016-02-22 2016-06-22 广东美芝制冷设备有限公司 制冷装置
CN105889030A (zh) * 2016-05-30 2016-08-24 安徽美芝制冷设备有限公司 压缩机的吸排气阀组件及具有其的压缩机
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