CN100422666C - 膨胀阀 - Google Patents

膨胀阀 Download PDF

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Publication number
CN100422666C
CN100422666C CNB200310103331XA CN200310103331A CN100422666C CN 100422666 C CN100422666 C CN 100422666C CN B200310103331X A CNB200310103331X A CN B200310103331XA CN 200310103331 A CN200310103331 A CN 200310103331A CN 100422666 C CN100422666 C CN 100422666C
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peristome
valve body
path
valve
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CN1499110A (zh
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小林和人
渡边和彦
矢野公道
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Fujikoki Corp
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B41/00—Fluid-circulation arrangements
    • F25B41/30—Expansion means; Dispositions thereof
    • F25B41/31—Expansion valves
    • F25B41/33—Expansion valves with the valve member being actuated by the fluid pressure, e.g. by the pressure of the refrigerant
    • F25B41/335—Expansion valves with the valve member being actuated by the fluid pressure, e.g. by the pressure of the refrigerant via diaphragms
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2341/00—Details of ejectors not being used as compression device; Details of flow restrictors or expansion valves
    • F25B2341/06—Details of flow restrictors or expansion valves
    • F25B2341/068—Expansion valves combined with a sensor
    • F25B2341/0683—Expansion valves combined with a sensor the sensor is disposed in the suction line and influenced by the temperature or the pressure of the suction gas
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2500/00—Problems to be solved
    • F25B2500/01—Geometry problems, e.g. for reducing size
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2500/00—Problems to be solved
    • F25B2500/13—Vibrations
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2500/00—Problems to be solved
    • F25B2500/17—Size reduction
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2500/00—Problems to be solved
    • F25B2500/21—Reduction of parts
    • Y—GENERAL 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/8593—Systems
    • Y10T137/87917—Flow path with serial valves and/or closures
    • Y—GENERAL 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/8593—Systems
    • Y10T137/87917—Flow path with serial valves and/or closures
    • Y10T137/87925—Separable flow path section, valve or closure in each

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Temperature-Responsive Valves (AREA)
  • Air-Conditioning For Vehicles (AREA)

Abstract

本发明简化了安装在空调装置的制冷剂膨胀阀的结构并减少其组装工序，该膨胀阀(1)包括方柱形的阀本体(10)，在阀本体(10)中导入制冷剂的第1通路(20)，设置在通路底部附近的阀室(22)，向蒸发器导入制冷剂的第2通路(24)和从蒸发器返回的制冷剂第3通路(26)，并且动力元件(70)通过动作杆(60)控制设置在阀室内的阀体(30)。将节流孔构件(40)的组装体和导向构件(100)的组装体压入到设置在阀本体10上的开口部。

Description

膨胀阀
技术领域
本发明涉及一种安装在汽车空调器等空调装置上的，根据制冷剂的温度而控制向蒸发器供给制冷剂流量的膨胀阀。
背景技术
对于现有的膨胀阀，如特开2000-304381号公报中显示的膨胀阀，具有阀受力构件、弹簧和调节螺栓等，所需要的构件数量多，因此难以实现膨胀阀的小型化和轻型化。
而且制冷剂经阀室通过调节螺栓的部分会产生泄漏等情况。
发明内容
鉴于以上缺点，本发明的目的是对应于要实现车辆空调的小型化和轻型化，提供一种结构简单，减少组装工序的膨胀阀。
本发明的膨胀阀，作为基本的装置，具有阀本体；设置在阀本体内的可通过高压制冷剂的第1通路；设置在所述阀本体内、与所述第1通路连通并在上端具有开口部的有底的阀室；设置在所述阀本体内、与上述阀室的开口部连通并向蒸发器侧送出制冷剂的第2通路；压入上述阀室的开口部的节流孔构件；与节流孔构件相对设置在所述阀室内的阀体；安装在上述节流孔构件上防止上述阀体的振动的防振构件；配置在上述阀室内支撑上述阀体的阀支撑构件；配置在上述阀室内将上述阀支撑构件向上方加力的弹簧；位于上述第2通路的上方，在上述阀本体内形成、使从所述蒸发器侧送出的制冷剂通过的第3通路；连通上述第2通路和上述第3通路的第1开口部；连通上述第3通路并在上述阀本体的上面开口的第2开口部；使上述阀体移动的动作杆；安装在上述第2开口部、驱动动作杆的驱动装置；压入上述第1开口部、引导上述动作杆自由移动的导向构件；
通过形成从上述阀本体的上端朝向下方内径逐渐变小且前端为底的开口部，以形成上述阀室的开口部、上述第1开口部及上述第2开口部；上述第1开口部的内径比上述阀室的开口部内径大且比上述第2开口部的内径小，能够从上述阀本体的上端一侧组装上述弹簧、阀支撑构件、阀体、节流孔构件、防振构件、导向构件、动作杆及驱动装置。
防振构件包括可弹性变形的环状部和从上述环状部向内侧一体形成并弹性支撑上述阀体的保持部，所述环状部通过其两端部重合而使直径可变更。
附图说明
图1是本发明膨胀阀的剖面图；
图2是图1的右视图；
图3是防振构件的斜视图。
具体实施方式
图1是本发明膨胀阀的剖面图，图2是右视图。
附图标记1代表整个膨胀阀，具有由铝合金等制成的方柱形的阀本体10，在阀本体10中，设置有流入高压制冷剂的第1通路20，第1通路20与有底的阀室22相通，节流孔构件40压入固定在阀室22的开口部。
在阀室22内，球形的阀体30通过焊接而固定设置在支承构件32上，平时支承构件32受弹簧34的作用将阀体30压靠在节流孔构件40上。
节流孔构件40在其中心部具有开口部42，开口部42和阀体30之间形成有制冷剂的流路。在节流孔构件40的内径部嵌入安装有防振构件50以防止阀体的振动。
通过节流孔构件40的制冷剂自第2通路24被送入到蒸发器。由蒸发器返回的制冷剂通过第3通路26而被送入到压缩机。
在与阀本体10的阀室22相对的另一端，安装有称之为动力元件的阀体驱动装置70，动力元件70具有由上盖72a和下盖72b焊接为一体的密封室72，在上盖72a和下盖72b之间夹持有隔膜80，密封室72通过螺纹74而固定在阀本体10上，由密封件76进行密封，在隔膜80和上盖72a之间形成有压力室82，其填充动作流体后由塞体84密封。
在相对压力室82的隔膜的另一侧上，配设有止动构件90。第3通路的制冷剂经过开口部12而被导入到止动构件里。止动构件90随着隔膜80的移动而移动。止动构件90上插接着动作杆60，动作杆60的顶端与阀体30相抵接。隔膜80的移动通过动作杆60而驱动阀体30，从而控制节流孔构件40之间的流路面积。
压入阀本体10的导向构件100，具有台阶部110，从而可以使其在阀本体10上准确地固定。在导向构件100的内径部分，插入有环状密封件120，其可由按压螺母等固定件130固定。密封件120将第2通路24和第3通路26之间的制冷剂通路密封。
图3示出了防振构件50结构的斜视图。
防振构件50具有将弹性好的金属板弯成圆形的环状部52，在环状部52上形成切口并向内侧弯折而形成保持部54。
环状部52的两端部52a，52b被制成可相互重合的结构，在缩小环状部52的直径的状态下将环状部52插入到节流孔构件40内径部分，环状部52利用使其直径复原的弹性力，可将防振构件50固定在节流孔构件40的内侧。
保持部54与球形的阀体30的外圆周部抵接，从而能抑制阀体30的振动。
在本实施例中设置有3个保持部54，当然也可以设置4个保持部。
下面说明该膨胀阀的组装顺序。
首先，通过安装阀本体10的动力元件70的一侧的开口部12，将弹簧34和焊接着阀体30的支承构件32插入到有底的阀室22中。
其次，从开口部12插入安装有防振构件50的节流孔构件40的组装体，并将其压入到阀室22的开口部16中。
该压入是使用适合的压入工具，必要的时候，可使用铆接加工固定。
然后，从开口部12插入已经插有动作杆60的导向构件100，并将其压入到阀本体10的台阶孔14中。导向构件100由台阶部110确定其轴向位置。必要的时候，使用铆接加工固定。
最后，通过螺纹部74将动力元件70螺接在阀本体10上，膨胀阀组装完成。
以上所述的本发明的膨胀阀，是相对于膨胀阀的本体，在安装有动力元件的开口部一侧，形成内径依次变小的开口部，将其前端部做成有底孔的膨胀阀。并且，在该开口部处构成安装有阀体和节流孔构件的组装体的阀室，另外，压入有导向构件的组装体，以此导向动作杆，同时也以此构成区分制冷剂高压侧和低压侧的通路。
根据此结构，可减少膨胀阀部件数量从而也减少了组装工序。

Claims (2)

1. 一种膨胀阀，其特征在于：具有阀本体；设置在阀本体内的可通过高压制冷剂的第1通路；设置在所述阀本体内、与所述第1通路连通并在上端具有开口部的有底的阀室；设置在所述阀本体内、与上述阀室的开口部连通并向蒸发器侧送出制冷剂的第2通路；压入上述阀室的开口部的节流孔构件；与节流孔构件相对设置在所述阀室内的阀体；安装在上述节流孔构件上防止上述阀体的振动的防振构件；配置在上述阀室内支撑上述阀体的阀支撑构件；配置在上述阀室内将上述阀支撑构件向上方加力的弹簧；位于上述第2通路的上方，在上述阀本体内形成、使从所述蒸发器侧送出的制冷剂通过的第3通路；连通上述第2通路和上述第3通路的第1开口部；连通上述第3通路并在上述阀本体的上面开口的第2开口部；使上述阀体移动的动作杆；安装在上述第2开口部、驱动动作杆的驱动装置；压入上述第1开口部、引导上述动作杆自由移动的导向构件；
通过形成从上述阀本体的上端朝向下方内径逐渐变小且前端为底的开口部，以形成上述阀室的开口部、上述第1开口部及上述第2开口部；上述第1开口部的内径比上述阀室的开口部内径大且比上述第2开口部的内径小，能够从上述阀本体的上端一侧组装上述弹簧、阀支撑构件、阀体、节流孔构件、防振构件、导向构件、动作杆及驱动装置。
2. 如权利要求1所述的膨胀阀，其特征在于，所述防振构件包括可弹性变形的环状部和从上述环状部向内侧一体形成并弹性支撑上述阀体的保持部，所述环状部通过其两端部重合而使直径可变更。
CNB200310103331XA 2002-10-29 2003-10-28 膨胀阀 Expired - Fee Related CN100422666C (zh)

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JP2002314086A JP4136597B2 (ja) 2002-10-29 2002-10-29 膨張弁
JP2002314086 2002-10-29

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EP (1) EP1416236B1 (zh)
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DE (1) DE60317999T2 (zh)

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Publication number Priority date Publication date Assignee Title
CN103245141A (zh) * 2013-05-28 2013-08-14 浙江三花股份有限公司 一种热力膨胀阀及其装配方法

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US20050274298A1 (en) * 2004-04-01 2005-12-15 Victoria Paulin Disposable table and chair covers
CN100404925C (zh) * 2004-05-17 2008-07-23 株式会社不二工机 膨胀阀
DE602005001293T2 (de) * 2004-05-17 2008-02-07 Fujikoki Corp. Entspannungsventil
JP4283180B2 (ja) * 2004-07-14 2009-06-24 株式会社不二工機 膨張弁
JP2007183082A (ja) * 2005-03-04 2007-07-19 Tgk Co Ltd 膨張弁
JP5136109B2 (ja) * 2008-02-18 2013-02-06 株式会社デンソー 膨張弁
JP6142181B2 (ja) * 2013-03-12 2017-06-07 株式会社テージーケー 膨張弁および防振ばね
JP6435486B2 (ja) * 2014-09-24 2018-12-12 株式会社テージーケー 制御弁
WO2016199610A1 (ja) * 2015-06-09 2016-12-15 株式会社デンソー 減圧弁

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US6062484A (en) * 1998-05-20 2000-05-16 Eaton Corporation Modular thermal expansion valve and cartridge therefor
JP2000304381A (ja) 1999-04-16 2000-11-02 Fuji Koki Corp 温度膨張弁
EP1195546B1 (en) * 2000-10-03 2004-09-29 Kabushiki Kaisha Kobe Seiko Sho Valve device
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Publication number Priority date Publication date Assignee Title
EP0691517A1 (en) * 1994-06-29 1996-01-10 TGK CO., Ltd. Unit type expansion valve
EP0781970A1 (fr) * 1995-12-27 1997-07-02 Valeo Climatisation Détendeur thermostatique pour circuit de climatisation, en particulier de véhicule automobile
CN1180156A (zh) * 1996-10-11 1998-04-29 株式会社不二工机 膨胀阀

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103245141A (zh) * 2013-05-28 2013-08-14 浙江三花股份有限公司 一种热力膨胀阀及其装配方法
CN103245141B (zh) * 2013-05-28 2016-04-27 浙江三花制冷集团有限公司 一种热力膨胀阀及其装配方法

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JP4136597B2 (ja) 2008-08-20
KR101054056B1 (ko) 2011-08-04
US6896190B2 (en) 2005-05-24
CN1499110A (zh) 2004-05-26
DE60317999D1 (de) 2008-01-24
KR20040038804A (ko) 2004-05-08
EP1416236A1 (en) 2004-05-06
JP2004150657A (ja) 2004-05-27
EP1416236B1 (en) 2007-12-12
US20040079810A1 (en) 2004-04-29
DE60317999T2 (de) 2008-11-13

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