CN104235387A - 膨胀阀 - Google Patents

膨胀阀 Download PDF

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Publication number
CN104235387A
CN104235387A CN201410177280.3A CN201410177280A CN104235387A CN 104235387 A CN104235387 A CN 104235387A CN 201410177280 A CN201410177280 A CN 201410177280A CN 104235387 A CN104235387 A CN 104235387A
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valve
spring
force application
valve body
spool
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CN104235387B (zh
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井上靖
齐藤武志
村上隼人
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Fujikoki Corp
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Fujikoki Corp
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K47/00—Means in valves for absorbing fluid energy
    • F16K47/02—Means in valves for absorbing fluid energy for preventing water-hammer or noise
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • F16K1/14—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with ball-shaped valve member
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K47/00—Means in valves for absorbing fluid energy
    • F16K47/08—Means in valves for absorbing fluid energy for decreasing pressure or noise level and having a throttling member separate from the closure member, e.g. screens, slots, labyrinths
    • 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
    • F25B2500/12—Sound

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

Abstract

膨胀阀(1a)具有入口端口(20)，该入口端口设于阀主体(10)上，并被供给高压的液体制冷剂。制冷剂经由小径部(21)流入阀室(22)，通过阀芯(60)与阀座(24)的阀通道，从节流孔(26)、出口端口(28)向蒸发器输送。阀芯驱动装置(40)通过动作棒(50)操作阀芯(60)而控制阀开度。阀芯(60)经由弹簧支架(100)被施力弹簧(80)支承。弹簧支架(100)具有插入施力弹簧(80)内部的圆柱状的下垂体(110)，从而防止制冷剂流入施力弹簧(80)内部。通过该作用防止制冷剂的流动变乱，从而消除了产生噪音的原因。采用本发明，能够防止流入膨胀阀的阀室的高压的液体制冷剂的流动变乱而引起的噪音。

Description

膨胀阀
技术领域
本发明涉及一种用于制冷循环的感温式膨胀阀。
背景技术
以往，搭载于汽车的空调装置等所使用的制冷循环为了省略设置空间、配管，使用感温式的温度膨胀阀，所述感温式的温度膨胀阀按照温度调整制冷剂的通过量。
图2表示这种膨胀阀的以往结构，图2(a)为纵剖视图，图2(b)为图2(a)的A-A线剖视图。
膨胀阀1具有阀主体10，在阀主体10上设有导入从压缩机侧供给的高压的制冷剂的入口端口20，入口端口20通过小径部21与阀室22连通。在入口端口20设有通过阀芯60而开闭的阀座24，通过阀座24和阀芯60调整了流量的制冷剂通过节流孔26从出口端口28被送出至蒸发器侧。
从蒸发器返回至压缩机侧的制冷剂会通过设于阀主体10的返回通道30。通过返回通道30的制冷剂经由开口部32向阀芯驱动装置40侧进入，将制冷剂的温度信息向阀芯驱动装置40侧传递。
阀芯驱动装置40具有封入有动作流体的动作压力室，将压力的变化转换为膜片的位移并传递至动作棒50。
动作棒50对阀芯60进行操作而控制阀开度。球状的阀芯60被弹簧支架70支承。弹簧支架70被施力弹簧80支承，所述施力弹簧80设在弹簧支架70与封住阀室22的塞子90之间。塞子90是螺母状的部件，通过调节其拧入量，能够调整阀芯60的闭阀方向的施力。
下述的专利文献1中公开有这种膨胀阀。
专利文献1：日本特开2012-47393号公报
发明所要解决的课题
在上述以往的膨胀阀1中，从小径部21导入阀室22的高压的制冷剂通过施力弹簧80的间隙而流入内侧的弹簧内部空间82，流动会变乱，成为产生噪音的原因。
发明内容
因此本发明的目的是提供一种消除上述不良情况的膨胀阀。
用于解决课题的手段
为达到上述目的，本发明的膨胀阀，具有：阀主体，所述阀主体具有：导入通过冷凝器进行了凝结的高压的制冷剂的入口端口、与该入口端口连通的阀室、设于该阀室的节流孔、将由于该节流孔而膨胀了的制冷剂向外部导出的出口端口、以及从蒸发器向压缩机返回的制冷剂所通过的通道；对所述节流孔进行开闭的阀芯；阀芯驱动装置，所述阀芯驱动装置对所述阀芯进行驱动而控制所述节流孔的开度；以及施力弹簧，所述施力弹簧配置在所述阀室内，且对所述阀芯向所述节流孔施力，在所述施力弹簧与所述阀芯之间设有弹簧支架，所述弹簧支架夹在所述施力弹簧与所述阀芯之间以将所述施力弹簧的弹簧力传递至所述阀芯，所述弹簧支架具有封住所述施力弹簧的内侧空间的圆柱状的下垂体。
发明效果
本发明的膨胀阀通过具有以上的结构，从而制冷剂不会从弹簧的间隙流入弹簧的内部空间，从而能够防止由于流动变乱而产生噪音。
附图说明
图1表示本发明的膨胀阀的较佳的一实施方式，图1(a)为纵剖视图，图1(b)为图1(a)的A-A线剖视图。
图2表示以往的膨胀阀的结构，图2(a)为纵剖视图，图2(b)为图2(a)的A-A线剖视图。
符号说明
1、1a 膨胀阀
10    阀主体
20    入口端口
21    小径部
22    阀室
24    阀座
26    节流孔
28    出口端口
30    返回通道
32    开口部
40    阀芯驱动装置
50    动作棒
60    阀芯
70    弹簧支架
80    施力弹簧
82    弹簧内部空间
90    塞子
100   弹簧支架
110   下垂体
具体实施方式
参照图1对本发明的膨胀阀的较佳的一实施方式进行说明。
对本发明的膨胀阀1a的与图2中所说明的以往结构的膨胀阀1相同的结构标注相同的符号，并省略详细的说明。
本发明的膨胀阀1a也具有下述结构：通过施力弹簧80经由弹簧支架100对配设在阀室22内的阀芯60进行支承。
该弹簧支架100具有圆柱状的下垂体110，下垂体110封住施力弹簧80的内侧的空间。弹簧支架100的圆柱状的下垂体110至少具有比小径部21的开口的下端部还向塞子90侧延伸的长度尺寸。由于该下垂体110的存在，能够防止从小径部21流入阀室22内的高压的液体制冷剂流入施力弹簧80的内部，从而制冷剂的流动不会变乱地顺畅地被输送向阀座24侧。
通过该作用，能够防止阀室22内的高压的液体制冷剂的流动产生乱流，从而能够去除乱流引起的噪音的产生原因。
如上所述，本发明的膨胀阀1a具有弹簧支架100，所述弹簧支架100具有插入施力弹簧内侧的圆柱状的下垂体110，从而能够通过简单的结构降低制冷剂的通过音。

Claims (1)

1.一种膨胀阀，具有：阀主体，所述阀主体具有：导入通过冷凝器进行了凝结的高压的制冷剂的入口端口、与该入口端口连通的阀室、设于该阀室的节流孔、将由于该节流孔而膨胀了的制冷剂向外部导出的出口端口、以及从蒸发器向压缩机返回的制冷剂所通过的通道；对所述节流孔进行开闭的阀芯；阀芯驱动装置，所述阀芯驱动装置对所述阀芯进行驱动而控制所述节流孔的开度；以及施力弹簧，所述施力弹簧配置在所述阀室内，且对所述阀芯向所述节流孔施力，该膨胀阀的特征在于，
在所述施力弹簧与所述阀芯之间设有弹簧支架，所述弹簧支架夹在所述施力弹簧与所述阀芯之间以将所述施力弹簧的弹簧力传递至所述阀芯，
所述弹簧支架具有封住所述施力弹簧的内侧空间的圆柱状的下垂体。
CN201410177280.3A 2013-06-07 2014-04-29 膨胀阀 Active CN104235387B (zh)

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Publication number Priority date Publication date Assignee Title
CN107636406A (zh) * 2015-09-04 2018-01-26 株式会社鹭宫制作所 节流装置以及冷冻循环
CN109210208A (zh) * 2017-06-29 2019-01-15 株式会社不二工机 膨胀阀
CN109982882A (zh) * 2016-12-23 2019-07-05 株式会社电装 膨胀阀装置
CN111365911A (zh) * 2020-03-23 2020-07-03 浙江农林大学暨阳学院 一种膨胀阀及汽车空调系统
CN113710942A (zh) * 2019-04-17 2021-11-26 株式会社不二工机 电磁阀一体型膨胀阀

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KR101735181B1 (ko) 2015-05-14 2017-05-15 학교법인 두원학원 공기조화장치용 팽창밸브
JP2019158296A (ja) * 2018-03-16 2019-09-19 株式会社不二工機 膨張弁
JP7016155B2 (ja) * 2018-03-19 2022-02-04 株式会社不二工機 膨張弁
JP2019163834A (ja) * 2018-03-20 2019-09-26 株式会社不二工機 膨張弁
JP2019163916A (ja) * 2018-03-20 2019-09-26 株式会社不二工機 膨張弁

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US20020185545A1 (en) * 2001-05-29 2002-12-12 Kazuto Kobayashi Expansion valve
CN1470822A (zh) * 2002-07-11 2004-01-28 ��ʽ����Tgk 膨胀阀
CN1525121A (zh) * 2003-02-24 2004-09-01 յ���ʽ���� 膨胀阀
JP2010014369A (ja) * 2008-07-04 2010-01-21 Denso Corp 膨張弁
JP2010145027A (ja) * 2008-12-19 2010-07-01 Fuji Koki Corp 膨張弁及び冷凍サイクル
CN102692106A (zh) * 2012-05-31 2012-09-26 宁波松鹰汽车部件有限公司 一种减振消噪的热力膨胀阀

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107636406A (zh) * 2015-09-04 2018-01-26 株式会社鹭宫制作所 节流装置以及冷冻循环
CN107636406B (zh) * 2015-09-04 2020-07-17 株式会社鹭宫制作所 节流装置以及冷冻循环
CN109982882A (zh) * 2016-12-23 2019-07-05 株式会社电装 膨胀阀装置
CN109210208A (zh) * 2017-06-29 2019-01-15 株式会社不二工机 膨胀阀
CN113710942A (zh) * 2019-04-17 2021-11-26 株式会社不二工机 电磁阀一体型膨胀阀
CN113710942B (zh) * 2019-04-17 2023-08-11 株式会社不二工机 电磁阀一体型膨胀阀
CN111365911A (zh) * 2020-03-23 2020-07-03 浙江农林大学暨阳学院 一种膨胀阀及汽车空调系统

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JP2014238206A (ja) 2014-12-18
JP6182363B2 (ja) 2017-08-16
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CN104235387B (zh) 2018-11-16

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