WO2019128793A1 - One-way valve and scroll compressor - Google Patents

One-way valve and scroll compressor Download PDF

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Publication number
WO2019128793A1
WO2019128793A1 PCT/CN2018/121976 CN2018121976W WO2019128793A1 WO 2019128793 A1 WO2019128793 A1 WO 2019128793A1 CN 2018121976 W CN2018121976 W CN 2018121976W WO 2019128793 A1 WO2019128793 A1 WO 2019128793A1
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WO
WIPO (PCT)
Prior art keywords
valve
valve plate
vibration damping
plate
check valve
Prior art date
Application number
PCT/CN2018/121976
Other languages
French (fr)
Chinese (zh)
Inventor
段振飞
于英林
李斌
Original Assignee
艾默生环境优化技术(苏州)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 CN201721869439.3U external-priority patent/CN207795586U/en
Priority claimed from CN201711448707.9A external-priority patent/CN109973390A/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 WO2019128793A1 publication Critical patent/WO2019128793A1/en

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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
    • F04C18/02—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
    • F04C29/06—Silencing

Definitions

  • the present disclosure relates to the field of check valves, and more particularly to a one-way valve for use in a scroll compressor.
  • a check valve is installed at the exhaust port.
  • a one-way valve generally includes a valve plate and a valve plate disposed above the valve plate, wherein the valve plate is provided with a valve hole for a fluid (such as a high-pressure gas discharged from a compression mechanism), and the valve plate can be under fluid pressure Open or close the valve bore to allow or inhibit fluid flow through the valve bore on the valve plate.
  • valve sheet generates noise when it is turned off, thereby deteriorating the noise level of the scroll compressor. How to solve the noise problem caused by the check valve has become one of the key factors to optimize the noise of the compressor.
  • Another object of the present disclosure is to provide a scroll compressor that reduces the noise level of a scroll compressor and improves the performance of the scroll compressor.
  • a check valve including: a valve plate provided with a valve hole for fluid passage; a valve plate, the valve plate arrangement Above the valve plate and configured to selectively close or open the valve bore; and a damping assembly, the damping assembly is disposed below the valve plate, and the damping assembly is configured such that During the sealing of the valve bore by the valve plate, the damping assembly is capable of elastically deforming under the force of the valve plate to at least partially absorb the vibrational energy from the valve plate.
  • the vibration damping assembly includes: a vibration damping sheet disposed between the valve sheet and the valve plate; and a surface of the valve plate facing the vibration damping sheet a recessed portion, wherein the vibration damping sheet is configured to allow fluid to flow through the vibration damping sheet, and is capable of elastically deforming toward the concave portion of the valve plate under the force of the valve sheet.
  • the recessed portion is formed to extend radially outward from a circumference of the valve hole; the vibration damping sheet is superposed on the valve plate and is provided with the valve plate The orifice corresponding to the valve hole, and the circumference of the orifice falls within a range surrounded by the circumference of the recess of the valve plate.
  • the vibration damping sheet is provided with one or more grooves recessed from a circumference of the orifice toward a circumference of the vibration damping sheet, and the groove also falls on the valve
  • the circumference of the concave portion of the plate is surrounded by the circumference.
  • the groove is located at a position on the circumference of the orifice that is primarily subjected to the force from the valve plate; or two or more of the grooves are along the orifice The circumference is evenly distributed.
  • the valve plate can completely cover the aperture and the groove on the vibration damping sheet; or the valve plate can completely cover the aperture and the portion on the vibration damping sheet Cover the groove.
  • the vibration damping assembly includes a vibration damping sheet disposed between the valve plate and the valve plate, and the vibration damping sheet is provided with a protrusion protruding toward the valve sheet, the protrusion portion It is configured to elastically deform toward the valve plate under the force of the valve plate.
  • the vibration damping assembly further includes an annular gasket disposed between the valve plate and the vibration damping sheet, wherein the protrusion of the vibration damping sheet is located at the annular gasket Within the scope of the inner ring.
  • the thickness of the annular spacer corresponds to a height at which the protrusion protrudes from an upper surface of the vibration damping sheet facing the annular spacer.
  • the vibration damping sheet is provided with an opening corresponding to the valve hole on the valve plate, and a circumference of the opening falls around the inner ring of the annular gasket Within the scope.
  • the protrusion comprises at least one annular protrusion extending circumferentially around the aperture.
  • the one-way valve further includes a stop disposed above the valve plate and configured to limit a maximum range of displacement of the valve plate.
  • the valve plate includes an annular valve plate fixing portion and a tongue extending radially inward from the valve plate fixing portion; and a lower surface of the stopper facing the valve plate A portion at least corresponding to the tongue is formed as a slope for limiting the maximum displacement range of the tongue.
  • the thickness of the vibration damping sheet is less than or equal to the thickness of the valve plate.
  • the vibration damping sheet is made of a metal material.
  • a scroll compressor wherein the one-way valve described above is disposed at an exhaust port of a fixed scroll member of the scroll compressor.
  • the structural arrangement of the vibration damping assembly can buffer and absorb the vibration energy of the valve plate, reducing the vibration noise of the valve plate. Therefore, the overall noise level of an application to which the check valve is applied, such as a scroll compressor, can be reduced. Moreover, due to the buffering and vibration absorbing effect of the vibration damping plate on the valve plate, the flapping force and the vibration energy of the valve plate are reduced, thereby improving the fatigue life of the valve plate and reducing the maintenance cost of the one-way valve.
  • check valve according to the present disclosure can achieve the purpose of reducing noise by adjusting or modifying its own structure, without requiring any structural adjustment or adding any auxiliary structure to the specific application to which it is applied, and therefore, The earth has improved the convenience of its application.
  • FIG. 1 shows a schematic structural view of a check valve according to a comparative example
  • FIG. 2 is an exemplary schematic view of a compression mechanism to which the one-way valve shown in FIG. 1 is applied;
  • Figure 3 is a schematic view of the action between the valve plate and the valve plate
  • FIG. 4 is an exploded perspective view of a one-way valve in accordance with an embodiment of the present disclosure
  • Figure 5 is an exemplary schematic view of a vibration damping sheet applicable to the one-way valve of the exemplary embodiment shown in Figure 4;
  • Figure 6 is an exemplary schematic view of a valve plate of a one-way valve suitable for use in the exemplary embodiment of Figure 4;
  • FIG. 7 is an exploded perspective view of a one-way valve in accordance with another embodiment of the present disclosure.
  • Figure 8 is a cross-sectional view of the check valve shown in Figure 7;
  • FIG. 9 is an exemplary schematic view of a vibration damping sheet applicable to the one-way valve of the exemplary embodiment shown in FIG. 7;
  • FIG. 10 shows a one-way valve structure having no one-way valve, having a comparative example as shown in FIG. 1 in the case where the entire structure of the scroll compressor is not modified, and having a vibration damping according to the arrangement of the present disclosure
  • a spectrogram comparison chart of the one-way valve structure of the assembly is shown.
  • the structure of the check valve according to the present disclosure will be described by taking the application of the check valve in the scroll compressor as an example.
  • the one-way valve structure in accordance with the present disclosure is not limited by application to a scroll compressor, which can be applied to any suitable application.
  • Scroll compressors are widely used in air conditioning and heat pump systems.
  • a check valve may be installed at the exhaust port of the compression mechanism of the scroll compressor (for example, at the fixed scroll member), so that The compressed high pressure gas can be discharged through the one-way valve while preventing the high pressure gas from flowing back.
  • FIG. 1 shows a schematic structural view of a one-way valve according to a comparative example
  • FIG. 2 is an exemplary schematic view of a compression mechanism to which the one-way valve shown in FIG. 1 is applied.
  • the compression mechanism of the scroll compressor may generally include a fixed scroll member 10 and an orbiting scroll member 20.
  • the fixed scroll member 10 and the orbiting scroll member 20 are engaged with each other to compress a working fluid such as a refrigerant.
  • the compressed high pressure gas can be discharged through the exhaust port 11 on the fixed scroll member 10.
  • FIG. 1 shows a schematic structural view of a check valve 100 according to a comparative example.
  • the check valve 100 may be disposed in the exhaust port 11.
  • the one-way valve 100 can include a valve plate 110 and a valve plate 120.
  • a valve hole 112 may be disposed on the valve plate 110.
  • High pressure gas from the compression mechanism can flow through the valve bore 112.
  • a valve plate 120 can be disposed on the valve plate 110 to selectively close or open the valve bore 112 to allow or inhibit fluid flow through the valve bore 112.
  • the valve plate 120 can include a generally annular valve plate securing portion 122 and a tongue portion 124 extending radially inwardly from the valve plate securing portion 122.
  • the valve plate fixing portion 122 may be fixed to the valve plate 110, and the tongue portion 124 may be configured to close or open the valve hole 112 through its free end, for example, the free end portion of the tongue portion 122 may be covered on the valve hole 112, thereby Close the valve hole.
  • the one-way valve 100 can also include a stop 130 to limit the maximum range of displacement of the valve plate 120.
  • the stop 130 can include a stop 132 that can be configured to correspond to the structure of the tongue 124 of the valve flap 120 and the facing tongue 124 of the stop 132
  • the lower surface eg, the portion corresponding to the free end of the tongue
  • the valve plate 110, the valve plate 120, and the stopper 130 may be fixed by the pin 140 so that the entire check valve 100 may be fixed in the exhaust port 11 of the fixed scroll member 10.
  • the utility model provides a damping assembly for the one-way valve, so that the damping assembly can elastically deform under the force of the valve plate during the process of closing the valve hole of the valve plate, thereby buffering the impact energy of the valve plate, at least partially Absorbs vibrational energy from the valve plate.
  • the structure of the check valve itself is adjusted without changing the efficiency of the scroll compressor, thereby achieving the purpose of noise reduction.
  • the one-way valve 200 may include a valve plate 210 and a valve plate 220.
  • the one-way valve 200 can also include a stop 230.
  • the valve plate 210 may be provided with a valve hole 212 for the passage of fluid.
  • the structure of the valve piece 220 and the stopper 230 according to the present embodiment may be similar to that of the check valve 100 shown in FIG. 1. That is, the valve plate 220 may include a valve plate fixing portion 222 for fixedly connecting to the valve plate 210 and a tongue portion 224 for closing or opening the valve hole 212.
  • the stop 132 of the stop 230 can be configured to limit the range of motion of the tongue 224.
  • the check valve 200 of the embodiment shown in FIG. 4 may include a vibration damping sheet 250 disposed between the valve plate 220 and the valve plate 210.
  • a recess 216 may be provided on the upper surface 214 of the valve plate 210 facing the vibration damping sheet 250.
  • the vibration-damping sheet 250 can be configured to allow fluid to flow through the vibration-damping sheet 250 and to create elasticity toward the recess 216 on the valve plate 210 under the force of the valve plate 220 (in this example, specifically the tongue 224). deformation.
  • the vibration damping sheet 250 can be elastically deformed, and the flapping force can be buffered, so that the vibration energy of the tongue portion 224 can be reduced to achieve the purpose of reducing noise.
  • the recessed portion 216 may be formed to extend further from the peripheral edge of the valve hole 212 in a radially outward direction. That is, the circumference of the recessed portion 216 may be located radially outward of the circumference of the valve hole 212.
  • the vibration damping sheet 250 may be stacked on the valve plate 210.
  • the vibration damping sheet 250 can be a circular plate that is substantially the same as the contour of the valve plate 210.
  • An orifice 252 may be provided on the vibration damping sheet.
  • the position of the orifice 252 on the damping plate 250 may correspond to the position of the valve bore 212 on the valve plate 210 such that high pressure gas from the compression mechanism can flow directly into the orifice 252 via the valve bore 212.
  • the circumference of the aperture 252 may fall within the range enclosed by the circumference of the recess 216.
  • the impact energy is buffered as the vibration damping sheet 250 is deformed.
  • part of the impact vibration energy can be distributed to the vibration damping sheet 250, that is, the high-energy vibration of the tongue portion of the valve sheet is converted into a tongue portion and vibration damping.
  • the low energy vibration of both pieces can reduce noise.
  • the vibration damping sheet acts on the tongue portion to cushion and absorb vibration, the flapping force and the vibration energy of the valve sheet are lowered, so that the fatigue life of the valve sheet can be improved.
  • the vibration damping sheets can have different sizes, contours, and configurations depending on the desired noise reduction effect, fatigue resistance, and other performance requirements.
  • Figure 5 shows a number of different examples of vibration damping sheets.
  • the orifice 252 is formed as a circular orifice.
  • a groove 254 is further provided at the periphery of the circular opening 252.
  • the groove 254 may be recessed from the periphery of the orifice 252 toward the periphery of the vibration damping sheet 250.
  • the recess also falls within the range enclosed by the circumference of the recess 216 on the valve plate 210.
  • the arrangement of the grooves can form a cantilever structure on the periphery of the orifice of the vibration damping sheet, thereby facilitating the elastic deformation of the vibration damping sheet, and is advantageous for improving the fatigue life of the vibration damping sheet.
  • the number of the grooves 254 may be one or more.
  • the number of grooves 254 is six, and in (c) and (d), the number of grooves 254 is two, and in (e) In the middle, the number of grooves is eight.
  • the distribution of the grooves 254 on the circumference of the opening 252 may be uniformly distributed as in the cases shown in (a) and (b).
  • the recess 254 may also be distributed centrally on the periphery of the aperture at a location corresponding to the free end of the tongue 224 (ie, the location that is primarily subject to the force from the tongue of the valve sheet)
  • a location corresponding to the free end of the tongue 224 ie, the location that is primarily subject to the force from the tongue of the valve sheet
  • the cases shown in (c) and (d) are such that deformation can be concentrated intensively under the force of the tongue 224, absorbing vibrational energy from the tongue 224, thereby cushioning the tongue 224. Impact effect.
  • a portion of the grooves may be disposed adjacent to the free end of the tongue 224, while another portion of the groove may be disposed closer to the fixed end of the tongue 224, as in (e) The situation shown.
  • the plurality of grooves may be symmetrically distributed about the longitudinal axis of the tongue 224.
  • the length of the groove (or the depth of the radial recess) can be set according to the actual situation, which can be slightly longer as shown in (a) and (c), or as (b) and (d) The picture shown is a bit shorter.
  • the groove may be completely covered by the free end of the tongue 224 or the tongue, or the groove may extend beyond the coverage of the free end of the tongue 224 or tongue to some extent. .
  • the recesses on the valve plate 210 can have different sizes, contours, and configurations, which can be circular recesses 216 as shown in Figure (a) of Figure 4 and Figure 6, or can be as shown The irregularly shaped recessed portions 216' and 216" shown in (b) and (c) of Fig. 6.
  • the area of the recessed portion can be as large as possible to facilitate the downward movement of the vibration damping sheet 250.
  • the recess can be recessed to a sufficient depth relative to the upper surface 214 of the valve plate 210 to ensure that the deformed diaphragm 250 does not contact the valve plate 210, thereby facilitating the increase of the valve plate and the reduction. The life of the diaphragm.
  • the vibration damping sheet can be of any suitable material.
  • the vibration damping sheet 250 can be made of a metal material.
  • the vibration damping sheet 250 may be made of the same material as the valve sheet 220, and for example, elastic steel, platinum material, or the like may be used.
  • the vibration damping sheet 250 may also be made of a material different from the valve sheet 220.
  • the thickness of the vibration damping sheet 250 may be less than or equal to the thickness of the valve plate 210 to facilitate elastic deformation of the vibration damping sheet.
  • valve plate 210, the vibration damping plate 250, the valve plate 220, and the stopper 230 may be fixed by the pin 240.
  • the entire check valve 200 can be fixed to the exhaust port of the compression mechanism by a suitable fastener (such as a retaining ring) or by a threaded connection (exhaust gas as shown in FIG. 2). Port 11).
  • FIG. 7 shows an exploded schematic view of a one-way valve 300 in accordance with another embodiment of the present disclosure.
  • the check valve 300 shown in FIG. 7 may include a valve plate 310, a valve plate 320, and a vibration damping assembly.
  • the one-way valve 300 can also include a stop 330.
  • the valve piece 320 and the stopper 330 can adopt the same configuration as the valve piece 220 and the stopper 230 of the one-way valve 200 shown in FIG. 4, and the structure of the valve piece 320 and the stopper 330 are not made here. Repeated description.
  • the valve plate 310 of the check valve 300 adopts the same structure as the valve plate 110 in the comparative example shown in FIG. 1, that is, the valve plate 310 is flat.
  • the circular plate member is not provided with any concave structure.
  • the vibration damping assembly of the one-way valve 300 may include a vibration damping sheet 350 disposed between the valve plate 310 and the valve plate 320.
  • a protrusion 356 that protrudes toward the valve piece 320 may be disposed on the vibration damping sheet 350.
  • the protrusion 356 is configured to be elastically deformable under the impact of the force of the valve piece.
  • the damping assembly can also include an annular spacer 360.
  • the annular spacer 360 is disposed on the upper surface 354 of the vibration damping sheet 350.
  • the annular spacer 360 may be disposed between the vibration damping sheet 350 and the valve sheet 320.
  • the protrusion 356 on the vibration damping sheet 350 may be enclosed within the range of the inner ring 362 of the annular spacer 360.
  • the thickness of the annular shim 360 can be the same or substantially the same as the height of the protrusion 356 protruding from the upper surface 354 of the damping plate 350 to ensure unidirectional current limiting performance of the one-way valve.
  • An orifice 352 may be disposed on the vibration damping sheet 350.
  • the location of the aperture 352 may correspond to the location of the valve aperture 312 on the valve plate 310, and the perimeter of the aperture 352 may fall within the range of the inner ring 362 of the annular spacer 360.
  • the protrusion portion 356 can be compressively deformed, so that the flapping force and/or the impact energy can be buffered, and the tongue portion 324 can be reduced. Vibration energy.
  • the present embodiment distributes a part of the impact vibration energy to the vibration damping sheet, thereby converting the high energy vibration of the tongue into the valve piece and reducing The low-energy vibration of both diaphragms can reduce the exhaust noise of the check valve.
  • the vibration damping sheet 350 acts to cushion and absorb the tongue portion 324 of the valve piece 320, the flapping force and the vibration energy of the tongue portion 324 are buffered, so that the fatigue life of the valve piece 320 can be improved.
  • the protrusions 356 can have different configurations depending on the desired noise reduction effect, fatigue resistance, and other performance requirements.
  • the protrusions may include an annular protrusion that continuously extends around the circumference of the aperture 352.
  • two or more annular protrusions may be arranged from the inside out in the radial direction of the aperture 352.
  • the annular gasket 360 may have other different configurations without satisfying the required noise reduction effect, fatigue resistance, and other performance requirements, and is not limited by the annular gasket structure in the present embodiment. .
  • valve plate 310, the vibration damping plate 350, the annular gasket 360, the valve plate 320, and the stopper 330 may be fixed by the pins 340.
  • the entire one-way valve 300 can be secured to the exhaust port of the compression mechanism of the scroll compressor by a suitable means of attachment, such as by a stop or a threaded connection. Therefore, due to the structural design of the check valve itself, it is not necessary to make any structural modification or modification or adjustment to the scroll compressor, thereby not only achieving the purpose of overall noise reduction of the scroll compressor, but also improving the check valve. The convenience of the application.
  • FIG. 10 shows a one-way valve structure having no one-way valve, having a comparative example as shown in FIG. 1 in the case where the entire structure of the scroll compressor is not modified, and having a vibration damping according to the arrangement of the present disclosure
  • a spectrogram comparison chart of the one-way valve structure of the assembly In Fig. 10, three elongated strips adjacent to each other represent different application scenarios, wherein the leftmost elongated strip represents the case of a scroll compressor No. 1 in which a one-way valve is not provided, and the middle elongated shape
  • the strip indicates the case where the one-way valve structure of the comparative example of Fig.
  • the vibration-damping assembly is not provided in the check valve
  • the long-shaped bar on the right side is provided according to the present invention.
  • the case of the No. 3 scroll compressor of the disclosed one-way valve structure i.e., the one-way valve structure having the vibration damping assembly.
  • the noise level of the No. 1 scroll compressor in which the check valve is not provided is generally larger than that of the check valve.
  • the No. 2 and No. 3 scroll compressors have high noise levels. In the case where the scroll compressor is operated at a higher frequency (above 1600 Hz in the figure), the No. 2 and No.
  • the No. 3 scroll compressors provided with the check valves are provided because the valve flap pats the valve plate continuously.
  • the high noise level is generally higher than the noise level of the No. 1 scroll compressor in which the check valve is not provided.
  • the noise level of the No. 3 scroll compressor is lower than that of the No. 2 scroll compressor, in particular, as in FIG.
  • the two rectangular boxes on the left indicate that the noise reduction effect of the scroll compressor having the one-way valve of the vibration damping assembly according to the present disclosure is relatively remarkable at frequencies of 2000 to 2500 Hz and 5000 to 8000 Hz.
  • the noise level of the No. 3 scroll compressor provided with the check valve according to the present disclosure has a noise level of 72.7 dB.
  • the No. 1 scroll compressor in which the check valve is not provided has a noise level of 71.8 decibels
  • the No. 2 scroll compressor provided with the check valve of the comparative example has a noise level of 74.8 decibels. It can be seen that the noise level of the No. 3 scroll compressor provided with the one-way valve according to the present disclosure is only 0.9 decibels higher than the noise level of the No. 1 scroll compressor in which the one-way valve is not provided, that is, the noise level is low. .
  • the noise level of the No. 3 scroll compressor provided with the check valve according to the present disclosure is 2.1 dB lower than that of the No.
  • the one-way valve structure according to the present disclosure has a better noise reduction effect, thereby contributing to reducing the noise level of the scroll compressor as a whole.
  • the vibration damping sheet has a good buffering and vibration absorbing effect on the valve piece, the fatigue life of the valve piece can be improved.

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Abstract

A one-way valve and a scroll compressor. The one-way valve (200) comprises: a valve plate (210) on which a valve opening (212) for a fluid to pass is provided; a valve reed (220) arranged above the valve plate (210) and constructed to selectively close or open the valve opening (212); and a vibration reduction component (250) arranged below the valve reed (220) and constructed to generate elastic deformation under the action of the force of the valve reed (220) during the process that the valve reed (220) closes the valve opening, so as to at least partially absorb vibration energy from the valve reed (220). The one-way valve (200) is provided at an air outlet (11) of a non-orbiting scroll member (10) of the scroll compressor. The structural configuration of the vibration reduction component can damp and absorb the vibration energy of the valve reed, and reduces the vibration noise of the valve reed and the overall noise level of the scroll compressor comprising the one-way valve.

Description

单向阀及涡旋压缩机Check valve and scroll compressor
本申请要求以下中国专利申请的优先权：于2017年12月27日提交中国专利局的申请号为201711448707.9、发明创造名称为“单向阀及涡旋压缩机”的中国专利申请；2017年12月27日提交中国专利局的申请号为201721869439.3、发明创造名称为“单向阀及涡旋压缩机”的中国专利申请。这些专利申请的全部内容通过引用结合在本申请中。This application claims the priority of the following Chinese patent application: Chinese Patent Application No. 201711448707.9 submitted to the Chinese Patent Office on December 27, 2017, and the invention name is “One-way Valve and Scroll Compressor”; 2017 12 On 27th, the application number of the Chinese Patent Office was 201721869439.3, and the invention was created as a Chinese patent application entitled "Check Valve and Scroll Compressor". The entire contents of these patent applications are incorporated herein by reference.
技术领域Technical field
本公开涉及单向阀技术领域，特别地，涉及应用于涡旋压缩机的单向阀。The present disclosure relates to the field of check valves, and more particularly to a one-way valve for use in 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.
在空调及热泵***中，为了提高涡旋压缩机在欠压缩比工况下的压缩效率以及在关机时防止涡旋压缩机反转，通常会在涡旋机构(例如，在定涡旋部件)的排气口处安装单向阀。此种单向阀通常包括阀板以及布置在阀板上方的阀片，其中，阀板上设置有用于流体(如自压缩机构排出的高压气体)通过的阀孔，阀片能够在流体压力的作用下打开或者封闭阀孔，从而允许或者禁止流体流动通过阀板上的阀孔。In air conditioning and heat pump systems, in order to improve the compression efficiency of the scroll compressor under under-compression conditions and prevent the scroll compressor from reversing during shutdown, it is usually in the scroll mechanism (for example, in the fixed scroll part) A check valve is installed at the exhaust port. Such a one-way valve generally includes a valve plate and a valve plate disposed above the valve plate, wherein the valve plate is provided with a valve hole for a fluid (such as a high-pressure gas discharged from a compression mechanism), and the valve plate can be under fluid pressure Open or close the valve bore to allow or inhibit fluid flow through the valve bore on the valve plate.
然而，阀片在关闭时会产生噪音，由此恶化了涡旋压缩机的噪音水平。如何解决单向阀带来的噪音问题，成为优化压缩机噪音的关键因素之一。However, the valve sheet generates noise when it is turned off, thereby deteriorating the noise level of the scroll compressor. How to solve the noise problem caused by the check valve has become one of the key factors to optimize the noise of the compressor.
发明内容Summary of the invention
本公开的一个目的是提供一种单向阀，以实现下述目的中的至少一者：缓冲和/或吸收阀片的振动能量，降低噪音，提高阀片的疲劳寿命。It is an object of the present disclosure to provide a one-way valve that achieves at least one of the following: buffering and/or absorbing vibrational energy of the valve plate, reducing noise, and increasing the fatigue life of the valve plate.
本公开的另一个目的是提供一种涡旋压缩机，以降低涡旋压缩机的噪音水平，改善涡旋压缩机的性能。Another object of the present disclosure is to provide a scroll compressor that reduces the noise level of a scroll compressor and improves the performance of the scroll compressor.
根据本公开的实施方式的一个方面，提供了一种单向阀，所述单向阀包括：阀板，所述阀板上设置有用于流体通过的阀孔；阀片，所述阀片布置在所述阀 板上方并构造成选择性地封闭或者打开所述阀孔；以及减振组件，所述减振组件布置在所述阀片的下方，并且所述减振组件构造成使得，在所述阀片封闭所述阀孔的过程中，所述减振组件能够在所述阀片的力的作用下产生弹性形变，从而至少部分地吸收来自所述阀片的振动能量。According to an aspect of an embodiment of the present disclosure, there is provided a check valve including: a valve plate provided with a valve hole for fluid passage; a valve plate, the valve plate arrangement Above the valve plate and configured to selectively close or open the valve bore; and a damping assembly, the damping assembly is disposed below the valve plate, and the damping assembly is configured such that During the sealing of the valve bore by the valve plate, the damping assembly is capable of elastically deforming under the force of the valve plate to at least partially absorb the vibrational energy from the valve plate.
根据一个实施方式，所述减振组件包括：设置在所述阀片与所述阀板之间的减振片；以及设置在所述阀板的面对所述减振片的上表面上的凹入部，其中，所述减振片构造成允许流体流动通过所述减振片、并且能够在所述阀片的力的作用下朝向所述阀板上的所述凹入部产生弹性形变。According to an embodiment, the vibration damping assembly includes: a vibration damping sheet disposed between the valve sheet and the valve plate; and a surface of the valve plate facing the vibration damping sheet a recessed portion, wherein the vibration damping sheet is configured to allow fluid to flow through the vibration damping sheet, and is capable of elastically deforming toward the concave portion of the valve plate under the force of the valve sheet.
根据一个实施方式，所述凹入部自所述阀孔的周缘径向向外延伸而形成；所述减振片叠置于所述阀板上、并且设置有与所述阀板上的所述阀孔相对应的孔口，并且，所述孔口的周缘落在所述阀板上的所述凹入部的周缘包围的范围内。According to an embodiment, the recessed portion is formed to extend radially outward from a circumference of the valve hole; the vibration damping sheet is superposed on the valve plate and is provided with the valve plate The orifice corresponding to the valve hole, and the circumference of the orifice falls within a range surrounded by the circumference of the recess of the valve plate.
根据一个实施方式，所述减振片上设置有自所述孔口的周缘朝向所述减振片的周缘凹入的一个或更多个凹槽，并且，所述凹槽也落在所述阀板上的所述凹入部的周缘包围的范围内。According to an embodiment, the vibration damping sheet is provided with one or more grooves recessed from a circumference of the orifice toward a circumference of the vibration damping sheet, and the groove also falls on the valve The circumference of the concave portion of the plate is surrounded by the circumference.
根据一个实施方式，所述凹槽位于所述孔口的周缘上主要承受来自所述阀片的作用力的位置处；或者两个或两个以上的所述凹槽沿着所述孔口的周缘均匀地分布。According to one embodiment, the groove is located at a position on the circumference of the orifice that is primarily subjected to the force from the valve plate; or two or more of the grooves are along the orifice The circumference is evenly distributed.
根据一个实施方式，所述阀片能够完全地遮盖住所述减振片上的所述孔口和所述凹槽；或者所述阀片能够完全地遮盖住所述减振片上的所述孔口以及部分地遮盖所述凹槽。According to an embodiment, the valve plate can completely cover the aperture and the groove on the vibration damping sheet; or the valve plate can completely cover the aperture and the portion on the vibration damping sheet Cover the groove.
根据一个实施方式，所述减振组件包括设置在所述阀片与所述阀板之间的减振片，所述减振片上设置有朝向所述阀片突出的突起部，所述突起部构造成在所述阀片的力的作用下朝向所述阀板产生弹性形变。According to an embodiment, the vibration damping assembly includes a vibration damping sheet disposed between the valve plate and the valve plate, and the vibration damping sheet is provided with a protrusion protruding toward the valve sheet, the protrusion portion It is configured to elastically deform toward the valve plate under the force of the valve plate.
根据一个实施方式，所述减振组件还包括设置在所述阀片与所述减振片之间的环形垫片，其中，所述减振片的所述突起部位于所述环形垫片的内环的范围内。According to an embodiment, the vibration damping assembly further includes an annular gasket disposed between the valve plate and the vibration damping sheet, wherein the protrusion of the vibration damping sheet is located at the annular gasket Within the scope of the inner ring.
根据一个实施方式，所述环形垫片的厚度与所述突起部突出于所述减振片的面对所述环形垫片的上表面的高度相对应。According to an embodiment, the thickness of the annular spacer corresponds to a height at which the protrusion protrudes from an upper surface of the vibration damping sheet facing the annular spacer.
根据一个实施方式，所述减振片上设置有与所述阀板上的所述阀孔相对应 的孔口，并且所述孔口的周缘落在所述环形垫片的所述内环包围的范围内。According to an embodiment, the vibration damping sheet is provided with an opening corresponding to the valve hole on the valve plate, and a circumference of the opening falls around the inner ring of the annular gasket Within the scope.
根据一个实施方式，所述突起部包括围绕所述孔口周向地延伸的至少一个环形突起。According to an embodiment, the protrusion comprises at least one annular protrusion extending circumferentially around the aperture.
根据一个实施方式，所述单向阀还包括止挡件，所述止挡件布置在所述阀片上方并构造成限制所述阀片的最大位移范围。According to one embodiment, the one-way valve further includes a stop disposed above the valve plate and configured to limit a maximum range of displacement of the valve plate.
根据一个实施方式，所述阀片包括环形的阀片固定部和自所述阀片固定部径向向内延伸的舌状部；并且所述止挡件的面对所述阀片的下表面上至少对应于所述舌状部的部分形成为斜面，以用于限制所述舌状部的最大位移范围。According to one embodiment, the valve plate includes an annular valve plate fixing portion and a tongue extending radially inward from the valve plate fixing portion; and a lower surface of the stopper facing the valve plate A portion at least corresponding to the tongue is formed as a slope for limiting the maximum displacement range of the tongue.
根据一个实施方式，所述减振片的厚度小于等于所述阀板的厚度。According to an embodiment, the thickness of the vibration damping sheet is less than or equal to the thickness of the valve plate.
根据一个实施方式，所述减振片由金属材料制成。According to an embodiment, the vibration damping sheet is made of a metal material.
根据另一个方面，提供了一种涡旋压缩机，其中，所述涡旋压缩机的定涡旋部件的排气口处设置有上述的单向阀。According to another aspect, a scroll compressor is provided, wherein the one-way valve described above is disposed at an exhaust port of a fixed scroll member of the scroll compressor.
采用根据本公开的单向阀，减振组件的结构设置可以缓冲和吸收阀片的振动能量，降低阀片的振动噪音。因此，可以降低应用有所述单向阀的应用(如涡旋压缩机)的整体噪音水平。而且，由于减振片对阀片的缓冲和吸振作用，使得阀片的拍打力和振动能量降低，从而可以提高阀片的疲劳寿命，降低单向阀的维护成本。另外，根据本公开的单向阀通过对自身结构的调整或修改便可以实现降低噪音的目的，而不需要对其所应用的具体应用做任何结构的调整或者增加任何辅助的结构，因此，极大地提高了其应用的便利性。With the one-way valve according to the present disclosure, the structural arrangement of the vibration damping assembly can buffer and absorb the vibration energy of the valve plate, reducing the vibration noise of the valve plate. Therefore, the overall noise level of an application to which the check valve is applied, such as a scroll compressor, can be reduced. Moreover, due to the buffering and vibration absorbing effect of the vibration damping plate on the valve plate, the flapping force and the vibration energy of the valve plate are reduced, thereby improving the fatigue life of the valve plate and reducing the maintenance cost of the one-way valve. In addition, the check valve according to the present disclosure can achieve the purpose of reducing noise by adjusting or modifying its own structure, without requiring any structural adjustment or adding any auxiliary structure to the specific application to which it is applied, and therefore, The earth has improved the convenience of its application.
附图说明DRAWINGS
通过以下参照附图的描述，本公开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。这里所描述的附图仅是出于说明目的而非意图以任何方式限制本公开的范围，附图并非按比例绘制，并且一些特征可能被放大或缩小以显示特定部件的细节。在附图中：Features and advantages of one or more embodiments of the present disclosure will become more apparent from the description of the appended claims. The drawings described herein are for illustrative purposes only and are not intended to limit the scope of In the drawing:
图1示出了根据比较示例的单向阀的结构示意图；1 shows a schematic structural view of a check valve according to a comparative example;
图2为应用有图1所示的单向阀的压缩机构的示例性示意图；2 is an exemplary schematic view of a compression mechanism to which the one-way valve shown in FIG. 1 is applied;
图3为阀片与阀板之间的作用示意图；Figure 3 is a schematic view of the action between the valve plate and the valve plate;
图4是根据本公开的一个实施方式的单向阀的分解示意图；4 is an exploded perspective view of a one-way valve in accordance with an embodiment of the present disclosure;
图5是适用于图4所示示例性实施方式的单向阀的减振片的示例性示意 图；Figure 5 is an exemplary schematic view of a vibration damping sheet applicable to the one-way valve of the exemplary embodiment shown in Figure 4;
图6是适用于图4所示示例性实施方式的单向阀的阀板的示例性示意图；Figure 6 is an exemplary schematic view of a valve plate of a one-way valve suitable for use in the exemplary embodiment of Figure 4;
图7是根据本公开的另一个实施方式的单向阀的分解示意图；7 is an exploded perspective view of a one-way valve in accordance with another embodiment of the present disclosure;
图8是图7所示单向阀的剖视图；Figure 8 is a cross-sectional view of the check valve shown in Figure 7;
图9是适用于图7所示示例性实施方式的单向阀的减振片的示例性示意图；以及9 is an exemplary schematic view of a vibration damping sheet applicable to the one-way valve of the exemplary embodiment shown in FIG. 7;
图10示出了在涡旋压缩机的整体结构不做改动的情况下，不具有单向阀、具有如图1所示的比较示例的单向阀结构以及具有根据本公开的设置有减振组件的单向阀结构的频谱图对比图表。10 shows a one-way valve structure having no one-way valve, having a comparative example as shown in FIG. 1 in the case where the entire structure of the scroll compressor is not modified, and having a vibration damping according to the arrangement of the present disclosure A spectrogram comparison chart of the one-way valve structure of the assembly.
具体实施方式Detailed ways
下面对本公开各实施方式的描述仅仅是示例性的，而绝不是对本公开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 description of the various embodiments of the present disclosure is merely exemplary, and is not a limitation of the disclosure and its application or usage. 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.
此外，在下面的描述中，将以单向阀在涡旋压缩机中的应用为例对根据本公开的单向阀的结构进行描述。然而，可以理解的是，根据本公开的单向阀结构不以涡旋压缩机为应用限制，其可以应用于任何适用的应用中。Further, in the following description, the structure of the check valve according to the present disclosure will be described by taking the application of the check valve in the scroll compressor as an example. However, it will be appreciated that the one-way valve structure in accordance with the present disclosure is not limited by application to a scroll compressor, which can be applied to any suitable application.
涡旋压缩机广泛应用于空调及热泵***中。为了提高涡旋压缩机的压缩效率以及防止涡旋压缩机的反转，通常，可以在涡旋压缩机的压缩机构(例如，在定涡旋部件)的排气口处安装单向阀，使得已压缩的高压气体能够经由单向阀排出，同时可以防止高压气体回流。Scroll compressors are widely used in air conditioning and heat pump systems. In order to improve the compression efficiency of the scroll compressor and prevent the reversal of the scroll compressor, generally, a check valve may be installed at the exhaust port of the compression mechanism of the scroll compressor (for example, at the fixed scroll member), so that The compressed high pressure gas can be discharged through the one-way valve while preventing the high pressure gas from flowing back.
图1示出了根据比较示例的单向阀的结构示意图；图2为应用有图1所示的单向阀的压缩机构的示例性示意图。1 shows a schematic structural view of a one-way valve according to a comparative example; and FIG. 2 is an exemplary schematic view of a compression mechanism to which the one-way valve shown in FIG. 1 is applied.
如图2所示，涡旋压缩机的压缩机构通常可以包括定涡旋部件10和动涡旋部件20。定涡旋部件10和动涡旋部件20彼此啮合配合从而对工作流体(如制冷剂)进行压缩。压缩得到的高压气体可以经由定涡旋部件10上的排气口11排出。As shown in FIG. 2, the compression mechanism of the scroll compressor may generally include a fixed scroll member 10 and an orbiting scroll member 20. The fixed scroll member 10 and the orbiting scroll member 20 are engaged with each other to compress a working fluid such as a refrigerant. The compressed high pressure gas can be discharged through the exhaust port 11 on the fixed scroll member 10.
图1示出了根据比较示例的单向阀100的结构示意图。单向阀100可以设置在排气口11中。如图1所示，单向阀100可以包括阀板110和阀片120。阀板110上可以设置有阀孔112。来自压缩机构的高压气体可以流动通过阀孔 112。阀片120可以设置在阀板110上，以选择性地封闭或者打开阀孔112，从而允许或禁止流体通过阀孔112。阀片120可以包括大致环形的阀片固定部122和自阀片固定部122径向向内延伸的舌状部124。阀片固定部122可以固定至阀板110，舌状部124构造成可以通过其自由端部封闭或者打开阀孔112，例如，舌状部122的自由端部可以遮盖在阀孔112上，从而封闭阀孔。单向阀100还可以包括止挡件130，用以限制阀片120的最大位移范围。如图所示，止挡件130可以包括止挡部132，该止挡部132可以构造成与阀片120的舌状部124的结构相对应，并且止挡部132的面对舌状部124的下表面上(例如，对应于舌状部的自由端的部分)可以包括斜面部分，从而对舌状部124的活动范围进行限制。阀板110、阀片120和止挡件130可以通过销钉140固定，从而整个单向阀100可以固定在定涡旋部件10的排气口11中。FIG. 1 shows a schematic structural view of a check valve 100 according to a comparative example. The check valve 100 may be disposed in the exhaust port 11. As shown in FIG. 1, the one-way valve 100 can include a valve plate 110 and a valve plate 120. A valve hole 112 may be disposed on the valve plate 110. High pressure gas from the compression mechanism can flow through the valve bore 112. A valve plate 120 can be disposed on the valve plate 110 to selectively close or open the valve bore 112 to allow or inhibit fluid flow through the valve bore 112. The valve plate 120 can include a generally annular valve plate securing portion 122 and a tongue portion 124 extending radially inwardly from the valve plate securing portion 122. The valve plate fixing portion 122 may be fixed to the valve plate 110, and the tongue portion 124 may be configured to close or open the valve hole 112 through its free end, for example, the free end portion of the tongue portion 122 may be covered on the valve hole 112, thereby Close the valve hole. The one-way valve 100 can also include a stop 130 to limit the maximum range of displacement of the valve plate 120. As shown, the stop 130 can include a stop 132 that can be configured to correspond to the structure of the tongue 124 of the valve flap 120 and the facing tongue 124 of the stop 132 The lower surface (eg, the portion corresponding to the free end of the tongue) may include a beveled portion to limit the range of motion of the tongue 124. The valve plate 110, the valve plate 120, and the stopper 130 may be fixed by the pin 140 so that the entire check valve 100 may be fixed in the exhaust port 11 of the fixed scroll member 10.
进一步参照图3，当来自压缩机构的高压气流的气体压力大于舌状部124上方的气体压力时，阀片120的舌状部124的自由端将向上偏移，从而允许气流通过阀孔112。相反，当来自压缩机构的高压气流的气体压力小于舌状部124上方的气体压力时，舌状部124的自由端将下移(如图中的箭头所示)并抵靠在阀孔112上，从而封闭阀孔112。With further reference to FIG. 3, when the gas pressure of the high pressure gas stream from the compression mechanism is greater than the gas pressure above the tongue 124, the free end of the tongue 124 of the valve plate 120 will deflect upwardly, thereby allowing airflow through the valve bore 112. Conversely, when the gas pressure of the high pressure gas stream from the compression mechanism is less than the gas pressure above the tongue 124, the free end of the tongue 124 will move downward (as indicated by the arrow in the figure) and abut against the valve bore 112. Thereby closing the valve hole 112.
然而，在阀片120的舌状部124的上下振动过程中，由于阀板通常采用金属材料，厚度较大，刚度较好，舌状部124拍打阀板110容易产生较大的噪音，恶化了涡旋压缩机的噪音水平。根据已知技术，存在采用在单向阀100上方另外设置消音器的方式来解决噪音问题的解决方案。然而，此种解决方案存在由于制冷剂在通过消音器时会增加排气压力损失而易降低涡旋压缩机效率的问题。However, during the up and down vibration of the tongue 124 of the valve piece 120, since the valve plate is usually made of a metal material, the thickness is large and the rigidity is good, and the tongue portion 124 flaps the valve plate 110 to easily generate a large noise, which deteriorates. The noise level of the scroll compressor. According to the known art, there is a solution to solve the noise problem by additionally providing a muffler above the check valve 100. However, such a solution has the problem that the efficiency of the scroll compressor is easily reduced due to the increase in exhaust pressure loss of the refrigerant as it passes through the muffler.
为此，本发明人提出了一种改进的单向阀结构。其给单向阀提供了减振组件，使得在阀片封闭阀孔的过程中，该减振组件能够在阀片的力的作用下产生弹性形变，从而缓冲阀片的冲击能量，至少部分地吸收来自阀片的振动能量。由此，在不改变涡旋压缩机效率的情况下对单向阀自身的结构进行调整，从而达到降噪的目的。To this end, the inventors have proposed an improved one-way valve structure. The utility model provides a damping assembly for the one-way valve, so that the damping assembly can elastically deform under the force of the valve plate during the process of closing the valve hole of the valve plate, thereby buffering the impact energy of the valve plate, at least partially Absorbs vibrational energy from the valve plate. Thereby, the structure of the check valve itself is adjusted without changing the efficiency of the scroll compressor, thereby achieving the purpose of noise reduction.
下面就结合图4至图10对根据本公开的单向阀结构做进一步详细的说明。The check valve structure according to the present disclosure will be further described in detail below with reference to FIGS. 4 through 10.
图4是根据本公开的一个实施方式的单向阀200的分解示意图。如图4所示，根据本公开的一个实施方式的单向阀200可以包括阀板210和阀片220。 类似地，单向阀200也可以包括止挡件230。其中，阀板210上可以设置有阀孔212，用于流体的通过。根据本实施方式的阀片220和止挡件230的结构可以与图1所示的单向阀100的结构类似。即，阀片220可以包括用于固定地连接至阀板210的阀片固定部222和用于封闭或打开阀孔212的舌状部224。止挡件230的止挡部132可以构造用于对舌状部224的活动范围进行限制。4 is an exploded schematic view of a one-way valve 200 in accordance with an embodiment of the present disclosure. As shown in FIG. 4, the one-way valve 200 according to an embodiment of the present disclosure may include a valve plate 210 and a valve plate 220. Similarly, the one-way valve 200 can also include a stop 230. Wherein, the valve plate 210 may be provided with a valve hole 212 for the passage of fluid. The structure of the valve piece 220 and the stopper 230 according to the present embodiment may be similar to that of the check valve 100 shown in FIG. 1. That is, the valve plate 220 may include a valve plate fixing portion 222 for fixedly connecting to the valve plate 210 and a tongue portion 224 for closing or opening the valve hole 212. The stop 132 of the stop 230 can be configured to limit the range of motion of the tongue 224.
与图1所示的单向阀100的结构的不同的是，图4所示实施方式的单向阀200可以包括设置在阀片220与阀板210之间的减振片250。在阀板210的面对减振片250的上表面214上可以设置有凹入部216。减振片250可以构造成允许流体流动通过减振片250、并且能够在阀片220(在本示例中具体为舌状部224)的力的作用下朝向阀板210上的凹入部216产生弹性形变。因此，当舌状部224拍打在减振片250上时，减振片250可以产生弹性变形，拍打力得以缓冲，从而可以减小舌状部224的振动能量，达到降低噪音的目的。Unlike the configuration of the check valve 100 shown in FIG. 1, the check valve 200 of the embodiment shown in FIG. 4 may include a vibration damping sheet 250 disposed between the valve plate 220 and the valve plate 210. A recess 216 may be provided on the upper surface 214 of the valve plate 210 facing the vibration damping sheet 250. The vibration-damping sheet 250 can be configured to allow fluid to flow through the vibration-damping sheet 250 and to create elasticity toward the recess 216 on the valve plate 210 under the force of the valve plate 220 (in this example, specifically the tongue 224). deformation. Therefore, when the tongue portion 224 is tapped on the vibration damping sheet 250, the vibration damping sheet 250 can be elastically deformed, and the flapping force can be buffered, so that the vibration energy of the tongue portion 224 can be reduced to achieve the purpose of reducing noise.
可选地，凹入部216可以自阀孔212的周缘朝径向向外的方向进一步延伸而形成。即，凹入部216的周缘可以位于阀孔212的周缘的径向外部。减振片250可以叠置在阀板210上。例如，如图所示，减振片250可以为与阀板210的轮廓大致相同的圆形板。在减振片上可以设置有孔口252。孔口252在减振片250上的位置可以与阀板210上的阀孔212的位置相对应，使得来自压缩机构的高压气体能够经由阀孔212直接流入孔口252。有利地，为便于减振片250在舌状部224的拍打作用下产生有效的形变，孔口252的周缘可以落在凹入部216的周缘包围的范围内。Alternatively, the recessed portion 216 may be formed to extend further from the peripheral edge of the valve hole 212 in a radially outward direction. That is, the circumference of the recessed portion 216 may be located radially outward of the circumference of the valve hole 212. The vibration damping sheet 250 may be stacked on the valve plate 210. For example, as shown, the vibration damping sheet 250 can be a circular plate that is substantially the same as the contour of the valve plate 210. An orifice 252 may be provided on the vibration damping sheet. The position of the orifice 252 on the damping plate 250 may correspond to the position of the valve bore 212 on the valve plate 210 such that high pressure gas from the compression mechanism can flow directly into the orifice 252 via the valve bore 212. Advantageously, to facilitate effective deformation of the vibration-damping sheet 250 under the flapping action of the tongue 224, the circumference of the aperture 252 may fall within the range enclosed by the circumference of the recess 216.
根据图4所示的实施方式，在阀片220(具体为舌状部224)向下运动拍打在减振片250上时，随着减振片250的变形，冲击能量会被缓冲。相比于比较示例中阀片直接拍打在阀板上的结构，部分冲击振动能量可以分配到减振片250上，即，阀片的舌状部的高能量振动转变成舌状部和减振片二者的低能量振动，从而可以降低噪音。而且，由于减振片对舌状部起到缓冲和吸振作用，使得阀片的拍打力和振动能量降低，从而可以提高阀片的疲劳寿命。According to the embodiment shown in FIG. 4, when the valve piece 220 (specifically the tongue portion 224) is moved downwardly on the vibration damping sheet 250, the impact energy is buffered as the vibration damping sheet 250 is deformed. Compared with the structure in which the valve piece is directly tapped on the valve plate in the comparative example, part of the impact vibration energy can be distributed to the vibration damping sheet 250, that is, the high-energy vibration of the tongue portion of the valve sheet is converted into a tongue portion and vibration damping. The low energy vibration of both pieces can reduce noise. Moreover, since the vibration damping sheet acts on the tongue portion to cushion and absorb vibration, the flapping force and the vibration energy of the valve sheet are lowered, so that the fatigue life of the valve sheet can be improved.
根据预期的降噪效果、抗疲劳性以及其它性能要求，减振片可以具有不同的尺寸、轮廓和构形。图5示出了减振片的多个不同的示例。其中，在(f)图中，孔口252形成为圆形的孔口。在(a)-(e)图所示的示例中，在圆形的孔口252的周缘进一步设置有凹槽254。凹槽254可以自孔口252的周缘朝 向减振片250的周缘凹入。并且，有利的是，凹槽也落在阀板210上的凹入部216的周缘所包围的范围内。凹槽的设置可以在减振片的孔口的周缘形成悬臂结构，从而有利于减振片的弹性形变，并且有利于提高减振片的疲劳寿命。其中，凹槽254的数量可以是一个或更多个。例如，在(a)图和(b)图中，凹槽254的数量为6个，在(c)图和(d)图中，凹槽254的数量为2个，而在(e)图中，凹槽的数量为8个。在凹槽的数量为两个或两个以上的情况下，凹槽254在孔口252周缘上的分布可以是均匀分布式的，如(a)图和(b)图所示的情形。可选地，凹槽254也可以在集中地分布于孔口周缘上的与舌状部224的自由端相对应的位置(即，主要承受来自阀片的舌状部的作用力的位置)处，例如(c)图和(d)图所示的情形，从而可以在舌状部224的力的作用下集中地进行变形，吸收来自舌状部224的振动能量，从而缓冲舌状部224的冲击作用。还可选地，凹槽中的一部分凹槽可以靠近于舌状部224的自由端而布置，而另一部分凹槽可以更靠近于舌状部224的固定端而布置，如(e)图所示的情形。还可选地是，多个凹槽可以关于舌状部224的纵向轴线对称地分布。凹槽的长度(或是径向凹入的深度)可以根据实际情况进行设置，可以如(a)图和(c)图所示的稍长一些，也可以如(b)图和(d)图所示的稍短一些。此外，根据实际需求的不同，凹槽可以被舌状部224或舌状部的自由端完全覆盖，或者，凹槽可以在一定程度上延伸超出舌状部224或舌状部的自由端的覆盖范围。The vibration damping sheets can have different sizes, contours, and configurations depending on the desired noise reduction effect, fatigue resistance, and other performance requirements. Figure 5 shows a number of different examples of vibration damping sheets. Here, in the (f) diagram, the orifice 252 is formed as a circular orifice. In the example shown in (a)-(e), a groove 254 is further provided at the periphery of the circular opening 252. The groove 254 may be recessed from the periphery of the orifice 252 toward the periphery of the vibration damping sheet 250. Also, advantageously, the recess also falls within the range enclosed by the circumference of the recess 216 on the valve plate 210. The arrangement of the grooves can form a cantilever structure on the periphery of the orifice of the vibration damping sheet, thereby facilitating the elastic deformation of the vibration damping sheet, and is advantageous for improving the fatigue life of the vibration damping sheet. Wherein, the number of the grooves 254 may be one or more. For example, in (a) and (b), the number of grooves 254 is six, and in (c) and (d), the number of grooves 254 is two, and in (e) In the middle, the number of grooves is eight. In the case where the number of grooves is two or more, the distribution of the grooves 254 on the circumference of the opening 252 may be uniformly distributed as in the cases shown in (a) and (b). Alternatively, the recess 254 may also be distributed centrally on the periphery of the aperture at a location corresponding to the free end of the tongue 224 (ie, the location that is primarily subject to the force from the tongue of the valve sheet) For example, the cases shown in (c) and (d) are such that deformation can be concentrated intensively under the force of the tongue 224, absorbing vibrational energy from the tongue 224, thereby cushioning the tongue 224. Impact effect. Still alternatively, a portion of the grooves may be disposed adjacent to the free end of the tongue 224, while another portion of the groove may be disposed closer to the fixed end of the tongue 224, as in (e) The situation shown. Still alternatively, the plurality of grooves may be symmetrically distributed about the longitudinal axis of the tongue 224. The length of the groove (or the depth of the radial recess) can be set according to the actual situation, which can be slightly longer as shown in (a) and (c), or as (b) and (d) The picture shown is a bit shorter. Furthermore, depending on the actual needs, the groove may be completely covered by the free end of the tongue 224 or the tongue, or the groove may extend beyond the coverage of the free end of the tongue 224 or tongue to some extent. .
类似地，阀板210上的凹入部可以具有不同的尺寸、轮廓和构形，其可以为如图4和图6中的(a)图所示的圆形凹入部216，也可以为如图6中的(b)图和(c)图所示的不规则形状的凹入部216'和216”。有利的是，凹入部的面积可以尽可能的大，以利于减振片250向下进行弹性变形。还有利的是，凹入部可以相对于阀板210的上表面214凹入足够的深度，以确保变形后的减振片250不会接触阀板210，从而有利于提高阀板和减振片的寿命。Similarly, the recesses on the valve plate 210 can have different sizes, contours, and configurations, which can be circular recesses 216 as shown in Figure (a) of Figure 4 and Figure 6, or can be as shown The irregularly shaped recessed portions 216' and 216" shown in (b) and (c) of Fig. 6. Advantageously, the area of the recessed portion can be as large as possible to facilitate the downward movement of the vibration damping sheet 250. Elastic deformation. It is also advantageous that the recess can be recessed to a sufficient depth relative to the upper surface 214 of the valve plate 210 to ensure that the deformed diaphragm 250 does not contact the valve plate 210, thereby facilitating the increase of the valve plate and the reduction. The life of the diaphragm.
减振片可以采用任何合适的材料，例如，在涡旋压缩机应用中，减振片250可以采用金属材料。优选地，减振片250可以采用与阀片220相同的材料，例如，可以采用弹性钢、铂金材料等。减振片250也可以采用与阀片220不同的材料。有利地，减振片250的厚度可以小于等于阀板210的厚度，以便于减振片的弹性形变。The vibration damping sheet can be of any suitable material. For example, in scroll compressor applications, the vibration damping sheet 250 can be made of a metal material. Preferably, the vibration damping sheet 250 may be made of the same material as the valve sheet 220, and for example, elastic steel, platinum material, or the like may be used. The vibration damping sheet 250 may also be made of a material different from the valve sheet 220. Advantageously, the thickness of the vibration damping sheet 250 may be less than or equal to the thickness of the valve plate 210 to facilitate elastic deformation of the vibration damping sheet.
类似地，阀板210、减振片250、阀片220和止挡件230可以通过销钉240固定。当应用于涡旋压缩机中时，整个单向阀200可以通过合适的紧固件(例如挡环)或者通过螺纹连接的方式固定于压缩机构的排气口(如图2所示的排气口11)处。Similarly, the valve plate 210, the vibration damping plate 250, the valve plate 220, and the stopper 230 may be fixed by the pin 240. When applied to a scroll compressor, the entire check valve 200 can be fixed to the exhaust port of the compression mechanism by a suitable fastener (such as a retaining ring) or by a threaded connection (exhaust gas as shown in FIG. 2). Port 11).
图7示出了根据本公开的另一个实施方式的单向阀300的分解示意图。图7所示的单向阀300可以包括阀板310、阀片320以及减振组件。类似地，单向阀300也可以包括止挡件330。其中，阀片320和止挡件330可以采用与图4所示的单向阀200的阀片220和止挡件230相同的构形，在此不对阀片320和止挡件330的结构做重复的描述。FIG. 7 shows an exploded schematic view of a one-way valve 300 in accordance with another embodiment of the present disclosure. The check valve 300 shown in FIG. 7 may include a valve plate 310, a valve plate 320, and a vibration damping assembly. Similarly, the one-way valve 300 can also include a stop 330. Wherein, the valve piece 320 and the stopper 330 can adopt the same configuration as the valve piece 220 and the stopper 230 of the one-way valve 200 shown in FIG. 4, and the structure of the valve piece 320 and the stopper 330 are not made here. Repeated description.
与图4所示的单向阀200的结构不同的是，单向阀300的阀板310采用了与图1所示的比较示例中的阀板110相同的结构，即，阀板310为平的圆形板件，其上并未设置任何的凹入结构。与图4所示的单向阀200的减振组件不同的是，单向阀300的减振组件可以包括布置在阀板310与阀片320之间的减振片350。在减振片350上可以设置有朝向阀片320突出的突起部356。并且突起部356构造成能够在阀片的力的冲击作用下产生弹性形变。在如图7所示的实施方式中，该减振组件还可以包括环形垫片360。其中，环形垫片360布置在减振片350的上表面354上。换言之，环形垫片360可以布置在减振片350与阀片320之间。减振片350上的突起部356可以被包围在环形垫片360的内环362的范围之内。有利的是，环形垫片360的厚度可以与突起部356突出于减振片350的上表面354的高度相同或大致相同，以确保单向阀的单向限流性能。Unlike the configuration of the check valve 200 shown in FIG. 4, the valve plate 310 of the check valve 300 adopts the same structure as the valve plate 110 in the comparative example shown in FIG. 1, that is, the valve plate 310 is flat. The circular plate member is not provided with any concave structure. Unlike the vibration damping assembly of the one-way valve 200 shown in FIG. 4, the vibration damping assembly of the one-way valve 300 may include a vibration damping sheet 350 disposed between the valve plate 310 and the valve plate 320. A protrusion 356 that protrudes toward the valve piece 320 may be disposed on the vibration damping sheet 350. And the protrusion 356 is configured to be elastically deformable under the impact of the force of the valve piece. In the embodiment shown in FIG. 7, the damping assembly can also include an annular spacer 360. Among them, the annular spacer 360 is disposed on the upper surface 354 of the vibration damping sheet 350. In other words, the annular spacer 360 may be disposed between the vibration damping sheet 350 and the valve sheet 320. The protrusion 356 on the vibration damping sheet 350 may be enclosed within the range of the inner ring 362 of the annular spacer 360. Advantageously, the thickness of the annular shim 360 can be the same or substantially the same as the height of the protrusion 356 protruding from the upper surface 354 of the damping plate 350 to ensure unidirectional current limiting performance of the one-way valve.
减振片350上可以设置有孔口352。孔口352的位置可以与阀板310上的阀孔312的位置相对应，并且孔口352的周缘可以落在环形垫片360的内环362的范围内。An orifice 352 may be disposed on the vibration damping sheet 350. The location of the aperture 352 may correspond to the location of the valve aperture 312 on the valve plate 310, and the perimeter of the aperture 352 may fall within the range of the inner ring 362 of the annular spacer 360.
由此，当阀片320的舌状部324拍打在减振片350的突起部356上时，突起部356可以被压缩变形，从而可以缓冲拍打力和/或冲击能量，减小舌状部324的振动能量。相比于阀片的舌状部直接拍打在阀板上的对比示例的结构，本实施方式将一部分冲击振动能量分配到减振片上，从而将舌状部的高能量振动转变成阀片和减振片二者的低能量振动，从而可以降低单向阀的排气噪音。而且，由于减振片350对阀片320的舌状部324起到了缓冲和吸振的作用，使 得舌状部324的拍打力和振动能量得以缓冲，从而可以提高阀片320的疲劳寿命。Thus, when the tongue portion 324 of the valve piece 320 is tapped on the protrusion 356 of the vibration damping sheet 350, the protrusion portion 356 can be compressively deformed, so that the flapping force and/or the impact energy can be buffered, and the tongue portion 324 can be reduced. Vibration energy. Compared with the structure of the comparative example in which the tongue of the valve piece directly slaps on the valve plate, the present embodiment distributes a part of the impact vibration energy to the vibration damping sheet, thereby converting the high energy vibration of the tongue into the valve piece and reducing The low-energy vibration of both diaphragms can reduce the exhaust noise of the check valve. Moreover, since the vibration damping sheet 350 acts to cushion and absorb the tongue portion 324 of the valve piece 320, the flapping force and the vibration energy of the tongue portion 324 are buffered, so that the fatigue life of the valve piece 320 can be improved.
根据预期的降噪效果、抗疲劳性能以及其它性能要求，突起部356可以具有不同的构形。例如，如图8和图9所示出的，突起部可以包括围绕孔口352的周向连续地延伸的一个环形突起。可选地，两个或两个以上的环形突起可以沿着孔口352的径向自内而外地布置。类似地，在满足所需的降噪效果、抗疲劳性以及其它性能要求的前提下，环形垫片360也可以具有其它不同的构形，而不以本实施方式中的环形垫片结构为限制。The protrusions 356 can have different configurations depending on the desired noise reduction effect, fatigue resistance, and other performance requirements. For example, as shown in FIGS. 8 and 9, the protrusions may include an annular protrusion that continuously extends around the circumference of the aperture 352. Alternatively, two or more annular protrusions may be arranged from the inside out in the radial direction of the aperture 352. Similarly, the annular gasket 360 may have other different configurations without satisfying the required noise reduction effect, fatigue resistance, and other performance requirements, and is not limited by the annular gasket structure in the present embodiment. .
同样地，阀板310、减振片350、环形垫片360、阀片320以及止挡件330可以通过销钉340固定。当应用于涡旋压缩机时，整个单向阀300可以通过合适的固定方式(例如通过止挡件或者螺纹连接的方式)固定到涡旋压缩机的压缩机构的排气口中。由此，由于单向阀自身的结构设计，使得不需要对涡旋压缩机做任何的结构改进或者修改或调整，从而不仅实现了涡旋压缩机的整体降噪的目的，而且提高单向阀了应用的便利性。Likewise, the valve plate 310, the vibration damping plate 350, the annular gasket 360, the valve plate 320, and the stopper 330 may be fixed by the pins 340. When applied to a scroll compressor, the entire one-way valve 300 can be secured to the exhaust port of the compression mechanism of the scroll compressor by a suitable means of attachment, such as by a stop or a threaded connection. Therefore, due to the structural design of the check valve itself, it is not necessary to make any structural modification or modification or adjustment to the scroll compressor, thereby not only achieving the purpose of overall noise reduction of the scroll compressor, but also improving the check valve. The convenience of the application.
图10示出了在涡旋压缩机的整体结构不做改动的情况下，不具有单向阀、具有如图1所示的比较示例的单向阀结构以及具有根据本公开的设置有减振组件的单向阀结构的频谱图对比图表。在图10中，彼此相邻的三个长形条分别代表不同的应用情形，其中，最左侧的长形条表示未设置单向阀的1号涡旋压缩机的情形，中间的长形条表示设置有如图1的比较示例的单向阀结构(即，单向阀中未设置有减振组件)的2号涡旋压缩机的情形，而右侧的长形条表示设置有根据本公开的单向阀结构(即具有减振组件的单向阀结构)的3号涡旋压缩机的情形。通过比较可以看出，在涡旋压缩机以低频(如图中的1250赫兹以下)运行的状态下，未设置单向阀的1号涡旋压缩机的噪音水平总体上比设置有单向阀的2号和3号涡旋压缩机的噪音水平高。而在涡旋压缩机以较高的频率(如图中的1600赫兹以上)运行的情况下，由于阀片不停地拍打阀板，设置有单向阀的2号和3号涡旋压缩机的噪音水平高总体上比未设置单向阀的1号涡旋压缩机的噪音水平高。然而，在同样设置有单向阀的2号和3号涡旋压缩机中，3号涡旋压缩机的噪音水平比2号涡旋压缩机的噪音水平低，特别地，如在图10中左边的两个矩形框表示的，在频率在2000～2500赫兹以及5000～8000赫兹的情况下，具有根据本公开的减振组件的单向阀的涡旋压缩机 的降噪效果比较明显。而且，从涡旋压缩机的总体运行情况来看，如图10中最右侧的矩形框所表示的，设置有根据本公开的单向阀的3号涡旋压缩机的噪音水平为72.7分贝，未设置单向阀的1号涡旋压缩机的噪音水平为71.8分贝，而设置有如比较示例的单向阀的2号涡旋压缩机的噪音水平为74.8分贝。可以看出，设置有根据本公开的单向阀的3号涡旋压缩机的噪音水平比未设置单向阀的1号涡旋压缩机的噪音水平仅高0.9分贝，即，噪音水平较低。而设置有根据本公开的单向阀的3号涡旋压缩机的噪音水平比设置有如比较示例的单向阀的2号涡旋压缩机的噪音水平低2.1分贝，即，相对于比较示例的降噪效果很显著。由此可以看出，根据本公开的单向阀结构具有较好的降噪效果，从而有利于降低涡旋压缩机整体的噪音水平。同时，由于减振片对阀片起到了较好的缓冲和吸振作用，可以提高阀片的疲劳寿命。10 shows a one-way valve structure having no one-way valve, having a comparative example as shown in FIG. 1 in the case where the entire structure of the scroll compressor is not modified, and having a vibration damping according to the arrangement of the present disclosure A spectrogram comparison chart of the one-way valve structure of the assembly. In Fig. 10, three elongated strips adjacent to each other represent different application scenarios, wherein the leftmost elongated strip represents the case of a scroll compressor No. 1 in which a one-way valve is not provided, and the middle elongated shape The strip indicates the case where the one-way valve structure of the comparative example of Fig. 1 (i.e., the vibration-damping assembly is not provided in the check valve) is provided, and the long-shaped bar on the right side is provided according to the present invention. The case of the No. 3 scroll compressor of the disclosed one-way valve structure (i.e., the one-way valve structure having the vibration damping assembly). By comparison, it can be seen that in the state where the scroll compressor is operated at a low frequency (below 1250 Hz in the figure), the noise level of the No. 1 scroll compressor in which the check valve is not provided is generally larger than that of the check valve. The No. 2 and No. 3 scroll compressors have high noise levels. In the case where the scroll compressor is operated at a higher frequency (above 1600 Hz in the figure), the No. 2 and No. 3 scroll compressors provided with the check valves are provided because the valve flap pats the valve plate continuously. The high noise level is generally higher than the noise level of the No. 1 scroll compressor in which the check valve is not provided. However, in the No. 2 and No. 3 scroll compressors which are also provided with the one-way valves, the noise level of the No. 3 scroll compressor is lower than that of the No. 2 scroll compressor, in particular, as in FIG. The two rectangular boxes on the left indicate that the noise reduction effect of the scroll compressor having the one-way valve of the vibration damping assembly according to the present disclosure is relatively remarkable at frequencies of 2000 to 2500 Hz and 5000 to 8000 Hz. Moreover, from the overall operation of the scroll compressor, as shown by the rightmost rectangular frame in FIG. 10, the No. 3 scroll compressor provided with the check valve according to the present disclosure has a noise level of 72.7 dB. The No. 1 scroll compressor in which the check valve is not provided has a noise level of 71.8 decibels, and the No. 2 scroll compressor provided with the check valve of the comparative example has a noise level of 74.8 decibels. It can be seen that the noise level of the No. 3 scroll compressor provided with the one-way valve according to the present disclosure is only 0.9 decibels higher than the noise level of the No. 1 scroll compressor in which the one-way valve is not provided, that is, the noise level is low. . The noise level of the No. 3 scroll compressor provided with the check valve according to the present disclosure is 2.1 dB lower than that of the No. 2 scroll compressor provided with the check valve of the comparative example, that is, with respect to the comparative example The noise reduction effect is significant. It can be seen from this that the one-way valve structure according to the present disclosure has a better noise reduction effect, thereby contributing to reducing the noise level of the scroll compressor as a whole. At the same time, since the vibration damping sheet has a good buffering and vibration absorbing effect on the valve piece, the fatigue life of the valve piece can be improved.
尽管在此详细描述了本公开的各种实施方式，但是应该理解，本公开并不局限于这里详细描述和示出的具体实施方式，在不偏离本公开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公开的范围内。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。While the various embodiments of the present invention have been described in detail herein, it is understood that the invention is not to The skilled person implements other variations and variants. All such variations and modifications are intended to fall within the scope of the present disclosure. Moreover, all of the components described herein can be replaced by other technically equivalent components.

Claims (16)

  1. 一种单向阀，所述单向阀包括：A check valve, the check valve comprising:
    阀板，所述阀板上设置有用于流体通过的阀孔；a valve plate on which the valve hole for fluid passage is disposed;
    阀片，所述阀片布置在所述阀板上方并构造成选择性地封闭或者打开所述阀孔；以及a valve plate disposed above the valve plate and configured to selectively close or open the valve bore;
    减振组件，所述减振组件布置在所述阀片的下方，并且所述减振组件构造成使得，在所述阀片封闭所述阀孔的过程中，所述减振组件能够在所述阀片的力的作用下产生弹性形变，从而至少部分地吸收来自所述阀片的振动能量。a vibration damping assembly disposed below the valve plate, and the vibration damping assembly is configured such that the damping assembly can be in the process of closing the valve hole by the valve plate The force of the valve disc is elastically deformed to at least partially absorb the vibrational energy from the valve plate.
  2. 根据权利要求1所述的单向阀，其中，所述减振组件包括：The check valve of claim 1 wherein said damping assembly comprises:
    设置在所述阀片(220)与所述阀板(210)之间的减振片(250)；以及a vibration damping sheet (250) disposed between the valve plate (220) and the valve plate (210);
    设置在所述阀板(210)的面对所述减振片(250)的上表面(214)上的凹入部(216，216'，216″)，其中，a recessed portion (216, 216', 216") disposed on an upper surface (214) of the valve plate (210) facing the vibration damping sheet (250), wherein
    所述减振片(250)构造成允许流体流动通过所述减振片(250)、并且能够在所述阀片(220)的力的作用下朝向所述阀板(210)上的所述凹入部(216，216'，216″)产生弹性形变。The vibration damping plate (250) is configured to allow fluid to flow through the vibration damping plate (250) and to be capable of being directed toward the valve plate (210) by the force of the valve plate (220) The recesses (216, 216', 216") are elastically deformed.
  3. 根据权利要求2所述的单向阀，其中，The check valve according to claim 2, wherein
    所述凹入部(216，216'，216″)自所述阀孔(212)的周缘径向向外延伸而形成；The recessed portion (216, 216', 216") is formed to extend radially outward from a circumference of the valve hole (212);
    所述减振片(250)叠置于所述阀板(210)上、并且设置有与所述阀板(210)上的所述阀孔(212)相对应的孔口(252)，并且，所述孔口(252)的周缘落在所述阀板(210)上的所述凹入部(216，216'，216″)的周缘包围的范围内。The vibration damping sheet (250) is stacked on the valve plate (210) and provided with an orifice (252) corresponding to the valve hole (212) on the valve plate (210), and The circumference of the orifice (252) falls within the range enclosed by the circumference of the recess (216, 216', 216") on the valve plate (210).
  4. 根据权利要求3所述的单向阀，其中，所述减振片(250)上设置有自所述孔口(252)的周缘朝向所述减振片(250)的周缘凹入的一个或更多个凹槽(254)，并且，所述凹槽(254)也落在所述阀板(210)上的所述凹入部(216，216'，216″)的周缘包围的范围内。The check valve according to claim 3, wherein the vibration damping sheet (250) is provided with one or a recessed from a circumference of the orifice (252) toward a circumference of the vibration damping sheet (250) More grooves (254), and the grooves (254) also fall within the range enclosed by the circumference of the recesses (216, 216', 216") on the valve plate (210).
  5. 根据权利要求4所述的单向阀，其中，The check valve according to claim 4, wherein
    所述凹槽(254)位于所述孔口(252)的周缘上主要承受来自所述阀片(220)的作用力的位置处；或者The groove (254) is located at a position on the circumference of the orifice (252) that is primarily subjected to the force from the valve plate (220); or
    两个或两个以上的所述凹槽(254)沿着所述孔口(252)的周缘均匀地分布。Two or more of the grooves (254) are evenly distributed along the circumference of the orifice (252).
  6. 根据权利要求4所述的单向阀，其中，The check valve according to claim 4, wherein
    所述阀片(220)能够完全地遮盖住所述减振片(250)上的所述孔口(252)和所述凹槽(254)；或者The valve plate (220) can completely cover the aperture (252) and the groove (254) on the vibration damping sheet (250); or
    所述阀片(220)能够完全地遮盖住所述减振片(250)上的所述孔口(252)以及部分地遮盖所述凹槽(254)。The valve plate (220) is capable of completely covering the aperture (252) on the damper plate (250) and partially covering the groove (254).
  7. 根据权利要求1所述的单向阀，其中，所述减振组件包括设置在所述阀片(320)与所述阀板(310)之间的减振片(350)，所述减振片(350)上设置有朝向所述阀片(320)突出的突起部(356)，所述突起部(356)构造成在所述阀片(320)的力的作用下朝向所述阀板(310)产生弹性形变。The check valve according to claim 1, wherein said vibration damping assembly comprises a vibration damping plate (350) disposed between said valve plate (320) and said valve plate (310), said vibration damping The sheet (350) is provided with a protrusion (356) protruding toward the valve piece (320), the protrusion (356) being configured to face the valve plate under the force of the valve piece (320) (310) Produces elastic deformation.
  8. 根据权利要求7所述的单向阀，其中，所述减振组件还包括设置在所述阀片(320)与所述减振片(350)之间的环形垫片(360)，其中，所述减振片(350)的所述突起部(356)位于所述环形垫片(360)的内环(362)的范围内。The check valve of claim 7, wherein the damper assembly further comprises an annular gasket (360) disposed between the valve plate (320) and the vibration damping plate (350), wherein The protrusion (356) of the vibration damping sheet (350) is located within the inner ring (362) of the annular gasket (360).
  9. 根据权利要求8所述的单向阀，其中，所述环形垫片(360)的厚度与所述突起部(356)突出于所述减振片(350)的面对所述环形垫片(360)的上表面(354)的高度相对应。The check valve according to claim 8, wherein a thickness of the annular gasket (360) and the protrusion (356) protrude from a surface of the vibration damping sheet (350) facing the annular gasket ( The height of the upper surface (354) of 360) corresponds.
  10. 根据权利要求8所述的单向阀，其中，所述减振片(350)上设置有与所述阀板(310)上的所述阀孔(312)相对应的孔口(352)，并且所述孔口(352)的周缘落在所述环形垫片(360)的所述内环(362)包围的范围内。The check valve according to claim 8, wherein the vibration damping plate (350) is provided with an opening (352) corresponding to the valve hole (312) on the valve plate (310), And the circumference of the aperture (352) falls within the range enclosed by the inner ring (362) of the annular spacer (360).
  11. 根据权利要求10所述的单向阀，其中，所述突起部(356)包括围绕所述孔口(352)周向地延伸的至少一个环形突起。The check valve of claim 10 wherein said projection (356) includes at least one annular projection extending circumferentially about said aperture (352).
  12. 根据权利要求1-11中的任一项所述的单向阀，其中，所述单向阀还包括止挡件(230，330)，所述止挡件(230，330)布置在所述阀片上方并构造成限制所述阀片的最大位移范围。The check valve according to any one of claims 1 to 11, wherein the one-way valve further includes a stopper (230, 330), the stopper (230, 330) being disposed in the Above the valve plate and configured to limit the maximum displacement range of the valve plate.
  13. 根据权利要求12所述的单向阀，其中，A check valve according to claim 12, wherein
    所述阀片包括环形的阀片固定部和自所述阀片固定部径向向内延伸的舌状部(224，324)；并且The valve plate includes an annular valve plate fixing portion and a tongue portion (224, 324) extending radially inward from the valve plate fixing portion;
    所述止挡件(230，330)的面对所述阀片的下表面上至少对应于所述舌状部的部分形成为斜面，以用于限制所述舌状部的最大位移范围。A portion of the stopper (230, 330) facing at least the tongue on a lower surface of the valve sheet is formed as a slope for limiting a maximum displacement range of the tongue.
  14. 根据权利要求12所述的单向阀，其中，所述减振片的厚度小于等于所述阀板的厚度。The check valve according to claim 12, wherein the thickness of the vibration damping sheet is less than or equal to the thickness of the valve plate.
  15. 根据权利要求12所述的单向阀，其中，所述减振片由金属材料制成。The check valve according to claim 12, wherein the vibration damping sheet is made of a metal material.
  16. 一种涡旋压缩机，其中，所述涡旋压缩机的定涡旋部件的排气口处设置有根据权利要求1-15中的任一项所述的单向阀。A scroll compressor in which a check valve according to any one of claims 1 to 15 is provided at an exhaust port of a fixed scroll member of the scroll compressor.
PCT/CN2018/121976 2017-12-27 2018-12-19 One-way valve and scroll compressor WO2019128793A1 (en)

Applications Claiming Priority (4)

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CN201721869439.3U CN207795586U (en) 2017-12-27 2017-12-27 Check valve and scroll compressor
CN201721869439.3 2017-12-27
CN201711448707.9A CN109973390A (en) 2017-12-27 2017-12-27 Check valve and screw compressor
CN201711448707.9 2017-12-27

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US11953003B2 (en) * 2022-06-09 2024-04-09 Lg Electronics Inc. Scroll compressor having at least one valve fixedly inserted into block insertion groove of non-orbiting scroll
US11965507B1 (en) 2022-12-15 2024-04-23 Copeland Lp Compressor and valve assembly

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