CN1129286A - 压缩机 - Google Patents

压缩机 Download PDF

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CN1129286A
CN1129286A CN95116560A CN95116560A CN1129286A CN 1129286 A CN1129286 A CN 1129286A CN 95116560 A CN95116560 A CN 95116560A CN 95116560 A CN95116560 A CN 95116560A CN 1129286 A CN1129286 A CN 1129286A
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compressor
valve plate
out sheet
close out
hole
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CN1071415C (zh
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尹德永
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Samsung Electronics Co Ltd
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Samsung Electronics Co Ltd
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B39/00Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
    • F04B39/10Adaptations or arrangements of distribution members
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B39/00Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
    • F04B39/10Adaptations or arrangements of distribution members
    • F04B39/1073Adaptations or arrangements of distribution members the members being reed valves
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K15/00Check valves
    • F16K15/14Check valves with flexible valve members
    • F16K15/16Check valves with flexible valve members with tongue-shaped laminae
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K15/00Check valves
    • F16K15/14Check valves with flexible valve members
    • F16K15/16Check valves with flexible valve members with tongue-shaped laminae
    • F16K15/161Check valves with flexible valve members with tongue-shaped laminae with biasing means in addition to material resiliency, e.g. spring
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K15/00Check valves
    • F16K15/14Check valves with flexible valve members
    • F16K15/16Check valves with flexible valve members with tongue-shaped laminae
    • F16K15/162Check valves with flexible valve members with tongue-shaped laminae with limit stop
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00Fluid handling
    • Y10T137/7722Line condition change responsive valves
    • Y10T137/7837Direct response valves [i.e., check valve type]
    • Y10T137/7859Single head, plural ports in parallel
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00Fluid handling
    • Y10T137/7722Line condition change responsive valves
    • Y10T137/7837Direct response valves [i.e., check valve type]
    • Y10T137/7879Resilient material valve
    • Y10T137/7888With valve member flexing about securement
    • Y10T137/7891Flap or reed
    • Y10T137/7892With stop

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Compressor (AREA)
  • Connection Of Plates (AREA)
  • Control Of Vending Devices And Auxiliary Devices For Vending Devices (AREA)

Abstract

结构简单,组装方便,致冷效率得以改善的一种压缩机。
压缩机的一个阀单元包括:一阀板230,该阀板230上形成有一吸入孔231和一排出孔234;一个设置在阀板230和一汽缸体17之间的吸入阀板220,该阀板220带有一个用来开启闭合吸入孔的第一开启闭合片221;一个设置在阀板230和汽缸头25之间的排出阀板240,它带有一个用来开启闭合排出孔的第二开启闭合片241。

Description

压缩机
本发明涉及一种压缩机,特别是涉及如下一种压缩机,即:该压缩机具有一个用来控制流体吸入和排出的结构已改进的阀单元。
按照压缩机的驱动方式,常用压缩机可分为多种类型,比如说:涡旋式压缩机,旋转式压缩机,摆板式压缩机,或活塞往复式压缩机。图1是这些类型压缩机中一种往复式气密型压缩机实例的简图。
在气密型主体11之内,往复式气密型压缩机包括有:一电机12,一汽缸14,一在汽缸14内往复运动的活塞15,一个由电机12驱动旋转的曲轴13,以及一个用来连接活塞14和曲轴13的连杆16。参考标号20指的是一阀单元。
在按上述构成的往复式气密型压缩机中,由电机12驱动活塞15使之在汽缸14内往复运动从而压缩流体。
一个用来控制把流体吸入汽缸压缩腔和把流体从汽缸压缩腔排出的阀单元20安装在一汽缸体17和一汽缸头25之间。参考图1.和图2,阀单元20包括:一阀板21,该阀板上有一吸入孔21d和一具有预定深度的槽部21c,在槽区21c上形成有一阀接合槽21b和一排出孔21a;一个用来开启和闭合排出孔21a的排出阀22,它在其一端由槽部21c上的接合槽21b支撑;一个用来支撑排出阀22并限定出排出阀22开启和闭合范围的止挡23;一个用来防止排出阀22和止挡23在槽部21c处脱开的支撑板24;一个吸入阀27和一个位于阀板21和汽缸体17之间的垫片28。一个用来防止致冷气体回流的环形台肩21e形成于排出孔21a的一个边缘上。参考标号26指的是一个插在阀板21和汽缸头25之间的垫片。
具有此类结构的常规压缩机1,其操作运行如下所述。在吸入冲程时,活塞15移到底部死点,这样在压缩腔中形成真空。因此,由于真空的吸力,一吸入阀板27a打开,这样流体通过吸入孔21d进入压缩腔。此时,排出阀22保持在阻塞住排出孔21a的位置。
此种状态下,当活塞15移至上部死点时,使流体压缩并将已压缩流体排出的排出冲程开始进行。在此过程中,吸入阀板27a堵住吸入孔21d,并且由于已压缩流体的压力,朝向排出孔21a的排出阀22打开,这样即可使流体排出。然后,当活塞15再一次移到底部死点时,排出阀22关闭而吸入阀板27a打开。由于活塞15的上述往复运动即可实现连续的压缩操作。如图2和3所示,常规压缩机具有一个形成在排出孔21a边缘上的环状台肩21e,该台肩21e可用来防止排出的流体(致冷气体)反向流动(回流)。因此,残存的致冷气体的体积与环状台肩21e和阀板21的总厚度(H)有关。
因此,由于新产生的致冷气体与残存的致冷气体相互混合并在下一吸入冲程再次膨胀,所以下述问题就会存在,即:致冷效率下降。
为解决上述问题,本发明的目的就是提供如下一种压缩机:此压缩机结构已改进,因而在致冷气体排出后不会再有致冷气体残留(在阀单元中)。
本发明的另一个目的在于提供一种结构简单,易于组装的压缩机。
为达到上述目的,提供如下一种压缩机,该压缩机包括:一汽缸和一具有一压缩腔的汽缸体,由于一活塞的往复运动流体在压缩腔内被压缩;一个与汽缸体啮合的汽缸头;和一个阀单元,该阀单元设置在汽缸体和汽缸头之间,它用来控制流体的吸入和排出。
阀单元包括:一阀板,该阀板上形成有一吸入孔和一排出孔;一设置在阀板和汽缸体之间的吸入阀板,该吸入阀板上形成有一个用来使吸入孔开启和关闭的第一开启闭合片;和一个设置在阀板和汽缸头之间的排出阀板,该排出阀板上形成有一个用来使排出孔开启和关闭的第二开启闭合片。
第一,第二环状孔形成于朝向第一和第二开启闭合片边缘的吸入孔和排出孔边缘的附近。并且,还提供了一个支撑板,该支撑板上形成有一支撑片,该支撑片用来支撑第二开启闭合片以防止第二开启闭合片过度弹性变形。
最好利用切割工序使第一和第二开启闭合片以及一支撑片与上述相应板构成一体。最好所形成的阀板具有与吸入/排出阀板大致相同的厚度。此种情况下,所形成的排出孔中间隙的体积比常规排出孔中间隙的体积要小。
根据上述本发明的特点,由于第一和第二开启闭合片与相应板构成一体,所以本发明具有下述优点:组装效率得以提高;零部件管理较方便。同样,由于本发明压缩机所采用的排出孔厚度比常规排出孔的厚度要小,所以本发明还具有下述优点:残存致冷气体量较小,因而也就提高了致冷效率。
参阅附图,通过详细描述一最佳实施例来更为清晰地体现出本发明的上述目的和优点,附图包括:
图1是普通常规压缩机的截面示意图。
图2是常规压缩机上一阀单元的分解透视图。
图3是图2中基本部件接合后的截面图。
图4是按本发明的阀单元的分解透视图。
图5是图4中阀单元的基本部件接合后的截面图。
按照本发明一实施例的压缩机具有与常规压缩机相同的基本部件。参考图1,如上所述,在气密型主体11内压缩机包括:电机12;汽缸14;在汽缸214内往复运动的活塞15;由电机12驱动旋转的曲轴13和用来连接活塞15和曲轴13的连杆16。在如上所述的气密型往复式压缩机中,由于电机122的驱动作用活塞15在汽缸14内往复运动从而使流体压缩。
具有本发明特征的一阀单元120安装在汽缸体17和汽缸头25之间,该阀单元用来控制把流体吸入汽缸压缩腔和把流体从汽缸压缩腔排出。参阅图4和图5,阀单元1 20包括:一阀板230,该阀板上形成有一吸入孔231和一排出孔234;一个设置在阀板230和汽缸体17之间的吸入阀板220;该吸入阀板220与一个用来开启闭合吸入孔231的第一开启闭合片221做成一体;一设置在阀板230和汽缸头25之间的排出阀板240,该排出阀板240与一个用来开启闭合排出孔234的第二开启闭合片241做成一体。还提供有支撑装置,该支撑装置用来防止由于汽缸内被压缩的致冷气体作用所造成的第二开启闭合片241过度弹性变形。支撑装置即是一个设置在排出阀板240和汽缸头25之间的支撑板250。支撑板250的一部分与第二开启闭合片241弹性接触。支撑板250具有一个通过利用切割工序而做出的支撑片251,该支撑片251与第二开启闭合片241接触。
利用切割工序,第一和第二开启闭合片221和241分别与吸入/排出板220和240做成一体,并且221和241可弹性变形。
为了分别提高第一和第二开启闭合片221,241与吸入孔231,排出孔234每一边缘的闭合效果,可分别在吸入孔231和排出孔234边缘的邻近位置处形成沿圆周排列的第一组孔232和第二组孔233。同样,在阀板230上可形成一面向第二开启闭合片241的第三孔235,这样可使第二开启闭合片241进一步牢固地封闭住排出孔234。
排出孔234的厚度约0.5—1.5mm,它比上述常规排出孔的大约2mm的厚度要小。
参考标号210和260是指设置在汽缸体17和阀单元120,及汽缸头25和阀单元120之间的垫片,垫片是用来防止致冷气体泄漏。
具有上述结构的按本发明的压缩机,其操作运转如下所述。
在吸入冲程时,活塞15移到底部死点(或下死点),这样在压缩腔内就会形成真空。由于真空吸力作用第一开启闭合片221弹性变形并被打开,这样致冷气体通过吸入死孔231流入压缩腔。此时,第二开启闭合片241保持在堵住排出孔234的位置。由于汽缸内的真空作用通过第二孔233和第三孔235作用于第二开启闭合片241,所以第二开启闭合片241与排出孔234的闭合附着力得以提高。
此种状态下,排出冲程开始进行,此冲程中,活塞15移至上死点,这样致冷气体就会被压缩并且可将被压缩的致冷气体排出。在此过程中,由于已被压缩的致冷气体的压力作用,第一开启闭合片221堵住吸入孔231,并且由于已被压缩的致冷气体的压力作用,第二开启闭合片241发生弹性变形从而把排出孔234打开。
当活塞15再次移到下死点时,开启的排出孔234又会被第二开启闭合片241封闭,并且通过第一开启闭合片221使吸入孔231打开。通过利用活塞15的往复运动可以实现连续的压缩操作。
由于在致冷气体作用下会弹性变形的第二开启闭合片241由支撑片251支撑,故就有可能防止过度弹性变形。
如上所述按本发明的压缩机具有如下优点。
首先,由于上述排出孔的厚度(0.5一1.0mm)小于常规排出孔的厚度(2mm),所以残存在排出孔234中的致冷气体的量小于先有技术中致冷气体的残存量,因而致冷效率得以提高。
其次,由于每一阀板220和240可分别与用来开启闭合吸入孔231和排出孔234的第一,第二开启闭合片做成一体,故组装较方便。

Claims (10)

1.一压缩机包括:
一汽缸和一汽缸体,汽缸体具有一压缩腔,由于活塞的往复运动流体在此压缩腔内被压缩;
一个与上述汽缸体接合的汽缸头;和
一个设置在所述汽缸体和所述汽缸头之间的,用来控制流体吸入和排出的阀单元,
其特征在于:阀单元包括:
一个带有一吸入孔和一排出孔的阀板;
一个设置在所述阀板和所述汽缸体之间的吸入阀板,该阀板带有一个用来开启闭合吸入孔的第一开启闭合片;和
一个设置在所述阀板和所述汽缸头之间的排出阀板,该阀板带有一个用来开启闭合排出孔的第二开启闭合片。
2.一按权利要求1的压缩机,其特征在于:在朝向第一开启闭合片边缘的吸入孔边缘的周围形成有第一组孔。
3.一按权利要求1的压缩机,其特征在于:在朝向第二开启闭合件边缘的排出孔边缘的周围形成有第二组孔。
4.一按权利要求1的压缩机,其特征在于:还提供一支撑板,该支撑板带有一支撑片,该支撑片用来支撑第二开启闭合片从而限定第二开启闭合片的弹性变形量。
5.一按权利要求4的压缩机,其特征在于:上述支撑片是通过切割工序在上述支撑板上形成的。
6.一按权利要求3的压缩机,其特征在于:朝向所述第二开启闭合片的第三组孔形成在所述排出孔的周围。
7.一按权利要求1的压缩机,其特征在于:所述第一开启闭合片是通过切割工序而在上述吸入阀板上形成的。
8.一按权利要求2的压缩机,其特征在于:上述第一开启闭合片是通过切割工序而在所述吸入阀板上形成的。
9.一按权利要求1的压缩机,其特征在于:上述第二开启闭合片是通过切割工序而在上述排出阀板上形成的。
10.一按权利要求3的压缩机,其特征在于:上述第二开启闭合片是通过切割工序而在上述排出阀板上形成的。
CN95116560A 1995-02-14 1995-09-20 压缩机 Expired - Fee Related CN1071415C (zh)

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KR1019950002683A KR0144923B1 (ko) 1995-02-14 1995-02-14 압축기의 밸브 유니트
KR2683/95 1995-02-18
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US (1) US5577901A (zh)
JP (2) JPH08219021A (zh)
KR (1) KR0144923B1 (zh)
CN (1) CN1071415C (zh)
IT (1) IT1281749B1 (zh)

Cited By (2)

* Cited by examiner, † Cited by third party
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CN1071848C (zh) * 1995-12-30 2001-09-26 Lg电子株式会社 密闭式压缩机用的排气阀装置
CN100386519C (zh) * 2000-12-27 2008-05-07 Lg电子株式会社 用于密封式压缩机的阀组件

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CN100386519C (zh) * 2000-12-27 2008-05-07 Lg电子株式会社 用于密封式压缩机的阀组件

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CN1071415C (zh) 2001-09-19
ITMI951959A0 (it) 1995-09-21
JP2662944B2 (ja) 1997-10-15
KR960031793A (ko) 1996-09-17
US5577901A (en) 1996-11-26
ITMI951959A1 (it) 1997-03-21
IT1281749B1 (it) 1998-02-27
JPH08219021A (ja) 1996-08-27
KR0144923B1 (ko) 1998-08-01

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