WO2021098303A1 - 电子膨胀阀 - Google Patents

电子膨胀阀 Download PDF

Info

Publication number
WO2021098303A1
WO2021098303A1 PCT/CN2020/109831 CN2020109831W WO2021098303A1 WO 2021098303 A1 WO2021098303 A1 WO 2021098303A1 CN 2020109831 W CN2020109831 W CN 2020109831W WO 2021098303 A1 WO2021098303 A1 WO 2021098303A1
Authority
WO
WIPO (PCT)
Prior art keywords
nut
diameter section
cavity
electronic expansion
valve
Prior art date
Application number
PCT/CN2020/109831
Other languages
English (en)
French (fr)
Inventor
曾庆军
王冠军
贺宇辰
Original Assignee
浙江盾安人工环境股份有限公司
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
Application filed by 浙江盾安人工环境股份有限公司 filed Critical 浙江盾安人工环境股份有限公司
Priority to JP2022524920A priority Critical patent/JP7418564B2/ja
Priority to KR1020227019115A priority patent/KR20220092613A/ko
Publication of WO2021098303A1 publication Critical patent/WO2021098303A1/zh

Links

Images

Classifications

    • 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
    • F25B41/34—Expansion valves with the valve member being actuated by electric means, e.g. by piezoelectric actuators
    • 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
    • F16K1/02—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 screw-spindle
    • 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
    • F16K1/32—Details
    • 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
    • F16K1/32—Details
    • F16K1/34—Cutting-off parts, e.g. valve members, seats
    • F16K1/36—Valve members
    • F16K1/38—Valve members of conical shape
    • 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
    • F16K1/32—Details
    • F16K1/34—Cutting-off parts, e.g. valve members, seats
    • F16K1/42—Valve seats
    • 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
    • F16K1/32—Details
    • F16K1/50—Preventing rotation of valve members
    • 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
    • F16K27/00—Construction of housing; Use of materials therefor
    • F16K27/02—Construction of housing; Use of materials therefor of lift valves
    • F16K27/0254—Construction of housing; Use of materials therefor of lift valves with conical shaped valve members
    • 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
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
    • F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
    • F16K31/0644—One-way valve
    • F16K31/0655—Lift valves
    • 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
    • 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating

Definitions

  • This application relates to the technical field of valves, and specifically to an electronic expansion valve.
  • the electronic expansion valve usually forms two cavities inside.
  • the pressure in these two cavities needs to be balanced to ensure the normal operation of the electronic expansion valve.
  • the current electronic expansion valve is usually formed between the nut and the outer valve seat Clearance, or opening a channel, this design does have the effect of balancing the two cavities, but because the gap or channel or opening is usually small, the balance effect is poor, and due to the need for alignment, the balance can be achieved.
  • the requirements are high, and there are certain difficulties in assembly.
  • the main purpose of this application is to provide an electronic expansion valve to solve the problem of poor balance between the two cavities in the electronic expansion valve in the prior art.
  • an electronic expansion valve including: a valve seat assembly, the valve seat assembly has a valve cavity; a guide sleeve, the guide sleeve is arranged in the valve cavity and connected with the valve seat assembly; a nut, the nut is arranged in Inside the valve cavity, the valve cavity is divided into a first cavity and a second cavity. A first passage connecting the first cavity and the second cavity is formed between the outer wall of the nut and the inner wall of the valve cavity. A part is sleeved on the outside of the guide sleeve.
  • the inner wall of the nut and the outer wall of the guide sleeve form a second passage connecting the first cavity and the second cavity; a valve core assembly for controlling the on-off state of the electronic expansion valve, the valve core
  • the component can be movably installed on the nut and the guide sleeve, and matched with the nut; the rotor component, the rotor component is rotatably arranged relative to the valve seat component, and is connected with the valve core component, the rotor component can drive the valve core component to rotate synchronously to Change the on-off state of the electronic expansion valve.
  • the side of the guide sleeve is provided with a positioning groove, and the positioning groove is communicated with the end surface of the guide sleeve, the inner side of the nut has a positioning rib, the positioning rib extends into the positioning groove, and the positioning rib is connected to the positioning groove.
  • a first gap is formed between the grooves, and the first gap serves as at least a part of the second channel.
  • the guide sleeve includes a large-diameter section and a small-diameter section that are sequentially connected, and the end of the large-diameter section away from the small-diameter section is connected to the valve seat assembly, and the nut has a reduced-diameter section and a An enlarged diameter section and a second enlarged diameter section, and the second enlarged diameter section is sleeved on the outside of the large diameter section, the first enlarged diameter section is sleeved on the outside of the small diameter section, and the positioning groove penetrates the large diameter along the axial direction of the guide sleeve.
  • the positioning ribs are located on the end surface of the first enlarged diameter section on the section and the small diameter section.
  • a second gap is formed between the step surface between the reduced diameter section and the first enlarged diameter section and the end surface of the small diameter section, and the second gap communicates with the first gap and forms a second channel.
  • the positioning rib is located in the second enlarged diameter section, and the outer wall of the second enlarged diameter section has a notch, and the notch penetrates the second enlarged diameter section along the axial direction of the nut, and the notch serves as the first At least part of the channel.
  • the nut further has an escape notch for avoiding the external pipeline, and the side of the guide sleeve has a through hole communicating with the external pipeline.
  • the outer wall of the nut has a notch
  • the electronic expansion valve further includes a pressure plate connected to the inner wall of the valve cavity, and the nut is pressed against the valve seat assembly, and the outer edge of the pressure plate is provided with
  • the notch part communicates with the via hole, and the notch part and the via hole form a first channel.
  • each via is arranged along the circumferential direction of the pressure plate.
  • the outer wall of the nut has ribs
  • the pressure plate is sleeved on the outside of the nut
  • the inner wall of the pressure plate has a groove
  • the ribs are accommodated in the groove, and the pressure plate cannot rotate relative to the nut.
  • multiple ribs and grooves are provided, and they are arranged along the circumferential direction of the pressing plate, and the ribs and grooves are arranged in a one-to-one correspondence.
  • a first channel is formed between the nut and the valve seat assembly, and a second channel is formed between the guide sleeve and the nut.
  • the first channel and the second channel are both connected to the first cavity and the second channel.
  • Two cavities in this way, the arrangement of two channels improves the balance ability of balancing the first cavity and the second cavity, and the balance effect is better, and the first channel and the second channel are both at the edge of the nut and the guide sleeve,
  • the balance hole design is avoided, the core pulling action is not required, the mold design is simplified, the efficiency is improved, and the cost is reduced.
  • Figure 1 shows a front view of the electronic expansion valve of the present application
  • Figure 2 shows an enlarged view at P in Figure 1;
  • Figure 3 shows a side view of the electronic expansion valve in Figure 1;
  • Figure 4 shows an enlarged view at Q in Figure 3;
  • Figure 5 shows a schematic structural view of the guide sleeve of the electronic expansion valve in Figure 1;
  • Fig. 6 shows a schematic structural view of the nut of the electronic expansion valve in Fig. 1;
  • Fig. 7 shows a schematic structural view of the nut in Fig. 6 from another perspective
  • Fig. 8 shows a schematic structural view of the electronic expansion valve in Fig. 1 when the upper sleeve, the rotor assembly and the valve core assembly are removed.
  • Valve seat assembly 11. First cavity; 12. Second cavity; 20. Guide sleeve; 21. Positioning groove; 22. Large diameter section; 23. Small diameter section; 24. Through hole; 30. Nut; 31. Positioning ribs; 32. First diameter expansion section; 33. Diameter reduction section; 34. Second diameter expansion section; 35. Avoid gaps; 36. Protrusive ribs; 40. First channel; 41. Notches; 42. Via; 50, second channel; 51, first gap; 52, second gap; 60, valve core assembly; 70, rotor assembly; 80, pressure plate; 81, groove; 91, first connecting pipe; 92, The second connecting pipe.
  • the present application provides an electronic expansion valve.
  • An electronic expansion valve as shown in Figures 1 to 8, including a valve seat assembly 10, a guide sleeve 20, a nut 30, a valve core assembly 60 for controlling the on-off state of the electronic expansion valve, and a rotor assembly 70.
  • the valve seat The assembly 10 has a valve cavity; the guide sleeve 20 is arranged in the valve cavity and connected with the valve seat assembly 10; the nut 30 is arranged in the valve cavity, and the valve cavity is divided into a first cavity 11 and a second cavity 12, and the nut 30 A first channel 40 connecting the first cavity 11 and the second cavity 12 is formed between the outer wall of the valve cavity and the inner wall of the valve cavity. At least a part of the nut 30 is sleeved outside the guide sleeve 20.
  • a second channel 50 connecting the first cavity 11 and the second cavity 12 is formed on the outer wall;
  • the valve core assembly 60 can be movably inserted on the nut 30 and the guide sleeve 20, and is matched with the nut 30;
  • the rotor assembly 70 is opposite
  • the valve seat assembly 10 is rotatably arranged and connected with the valve core assembly 60.
  • the rotor assembly 70 can drive the valve core assembly 60 to rotate synchronously to change the on-off state of the electronic expansion valve.
  • a first channel 40 is formed between the nut 30 and the valve seat assembly 10
  • a second channel 50 is formed between the guide sleeve 20 and the nut 30.
  • the first channel 40 and the second channel 50 are both connected to the first channel.
  • the cavity 11 and the second cavity 12 are as shown in Figs. 1 to 4.
  • the first channel 40 and the second channel 50 are both at the edge of the nut 30 and the guide sleeve 20, which avoids the design of balanced small holes, does not need to perform core pulling action, the mold design is simplified, the efficiency is improved, and the cost is reduced.
  • the side of the guide sleeve 20 is provided with a positioning groove 21, and the positioning groove 21 communicates with the end surface of the guide sleeve 20.
  • the inner side of the nut 30 has a positioning rib 31, and the positioning rib 31 extends into the positioning groove 21.
  • a first gap 51 is formed between the positioning rib 31 and the positioning groove 21, and the first gap 51 serves as at least a part of the second channel 50.
  • the reason why the positioning groove 21 is communicated with the end surface of the guide sleeve 20 is that when the components are assembled, the nut 30 is sleeved to the outside of the guide sleeve 20 along the axial direction of the guide sleeve 20, so that the positioning rib 31 can smoothly enter the positioning Slot 21.
  • the positioning groove 21 and the positioning rib 31 are arranged on the one hand as the structural basis for forming the second channel 50.
  • the first gap 51 can naturally be formed by the large and small structure matching between the positioning groove 21 and the positioning rib 31, and no additional installation is required. On the one hand, it is convenient and quick to assemble the guide sleeve 20 and the nut 30 to ensure the accuracy and reliability of the installation.
  • the guide sleeve 20 includes a large-diameter section 22 and a small-diameter section 23 that are sequentially connected, and the end of the large-diameter section 22 away from the small-diameter section 23 is connected to the valve seat assembly 10, and the nut 30 is connected in sequence
  • the reduced-diameter section 33, the first expanded-diameter section 32 and the second expanded-diameter section 34, and the first expanded-diameter section 32 is sleeved outside the small-diameter section 23, and the second expanded-diameter section 34 only covers part of the large-diameter section 22.
  • the positioning groove 21 penetrates the large-diameter section 22 and the small-diameter section 23 along the axial direction of the guide sleeve 20, and the positioning rib 31 is located on the end surface of the first enlarged-diameter section 32.
  • the positioning ribs 31 will simultaneously extend into the positioning groove 21, so that the nut 30 cannot rotate relative to the guide sleeve 20.
  • a step surface is naturally formed between the reduced-diameter section 33 and the first enlarged-diameter section 32. If the stepped surface is in close contact with the end surface of the small-diameter section 23, the first cavity 11 and the second cavity The second channel 50 cannot be effectively communicated with each other. Therefore, the step surface between the reduced diameter section 33 and the first enlarged diameter section 32 is provided with a gap between the end surface of the small diameter section 23, and a second gap is formed between the two. 52, and the second gap 52 is in communication with the first gap 51. In this way, the first cavity 11 and the second cavity 12 are connected through the first gap 51 and the second gap 52. Naturally, the second gap 52 Matching with the first gap 51 serves as the second channel 50.
  • the positioning rib 31 is located in the second enlarged diameter section 34.
  • the outer wall of the second enlarged diameter section 34 has a notch 41.
  • the notch 41 forms a gap with the inner wall of the valve seat assembly 10.
  • the notch 41 As at least a part of the first passage 40, the notch 41 penetrates the second enlarged diameter section 34 along the axial direction of the nut 30, so that the first cavity 11 and the second cavity 12 are communicated through the notch 41.
  • both the nut 30 and the guide sleeve 20 are resin injection molded parts.
  • the valve seat assembly 10 is connected to an external pipeline.
  • the external pipeline includes a first connecting pipe 91 connected to the side of the valve seat assembly 10 and a second connecting pipe 92 connected to the bottom surface of the valve seat assembly 10. Since the first connecting pipe 91 is on the side of the valve seat assembly 10, interference may occur between the first connecting pipe 91 and the nut 30. In order to avoid this situation, a side surface of the nut 30 is also provided for avoiding the first connecting pipe 91. Avoidance notch 35. Since the first connecting tube 91 is generally a circular tube, the avoidance notch 35 is semicircular, as shown in FIG. 7, and is sleeved outside the first connecting tube 91.
  • the side of the guide sleeve 20 has a through hole.
  • Hole 24 communicates with the central hole on the axis of the guide sleeve 20, and the through hole 24 is also aligned with the first connecting pipe 91, and the positions of the first connecting pipe 91, the avoidance gap 35 and the through hole 24 need to be in accordance with The above direction setting can realize the valve function of the electronic expansion valve.
  • the circumferential position of the guide sleeve 20 needs to be adjusted so that the through hole 24 is aligned with the first connecting pipe 91, and
  • the position of the avoidance notch 35 and the first connecting pipe 91 is realized by the cooperation between the positioning groove 21 and the positioning rib 31, that is, when the positioning rib 31 is located in the positioning groove 21, the avoidance notch 35 is aligned with the first connection
  • the tube 91, a part of the first connecting tube 91 is located in the avoiding notch 35, so as to realize the position and orientation of the first connecting tube 91, the avoiding notch 35 and the through hole 24 to be assembled accurately.
  • the electronic expansion valve further includes a pressure plate 80, which is connected to the inner wall of the valve cavity, and presses the nut 30 on the valve seat assembly 10, so that the nut 30 can be fixed to the valve seat assembly through the pressure plate 80 10, the outer edge of the pressure plate 80 is provided with a through hole 42 aligned and communicated with the notch 41.
  • the notch 41 and the through hole 42 together form the first channel 40, so that the first cavity 11 and the second cavity 12 pass through the notch.
  • the portion 41 communicates with the through hole 42 on the pressure plate 80.
  • both the notch 41 and the via 42 may be one, or they may be provided with multiple respectively. In this embodiment, it is preferable that both the notch 41 and the via 42 are provided with multiple and one-to-one correspondence.
  • the notch 41 and The through holes 42 are arranged along the circumferential direction of the pressing plate 80, so that a plurality of first passages 40 are formed, and the communication effect between the first cavity 11 and the second cavity 12 is improved.
  • the notch 41 and the through hole 42 are not aligned.
  • a protrusion is provided on the outer wall of the nut 30.
  • the rib 36 is provided with a groove 81 on the inner wall of the pressure plate 80.
  • the rib 36 is accommodated in the groove 81.
  • the cooperation of the rib 36 and the groove 81 prevents the pressure plate 80 from rotating relative to the nut 30, ensuring that the pressure plate 80 is mounted on the nut.
  • the via 42 is always aligned with the notch 41, which ensures the balance effect of the first channel 40.
  • ribs 36 and grooves 81 there are multiple ribs 36 and grooves 81, and they are evenly arranged along the circumferential direction of the pressure plate 80, and the ribs 36 and grooves 81 are arranged in one-to-one correspondence to ensure that the pressure plate 80 and the nut 30 are Force balance.
  • the valve seat assembly 10 includes a lower valve seat, an upper sleeve, and a valve seat core.
  • the lower valve seat and the upper sleeve are connected together to form a valve cavity, and other components are contained in the valve cavity.
  • the lower valve seat The side and bottom surface of the valve are provided with communication holes 24 for communicating with the first connecting pipe 91 and the second connecting pipe 92.
  • a valve core seat is installed at the communication port on the bottom surface, and the valve core seat is in a sleeve shape.
  • the fluid entering the connecting pipe 92 enters the valve cavity through the valve core seat and the guide sleeve 20 in turn, and flows out of the valve cavity through the first connecting pipe 91.
  • the electronic expansion valve opens and closes through the valve core assembly 60 and the valve core seat. Specifically, one end of the valve core assembly 60 can extend into or out of the valve core seat, thereby changing the opening of the valve port on the valve core seat to achieve flow adjustment.
  • the valve core assembly 60 of this embodiment includes a screw, a valve needle, and a spring.
  • the screw is threadedly fitted with the nut 30 and connected to the rotor assembly 70.
  • the rotor assembly 70 rotates under the drive of external magnetic force and passes between the screw and the nut 30.
  • the threaded fit of the valve core assembly 60 realizes the axial movement of the valve core assembly 60, thereby changing the distance between the valve core assembly 60 and the valve core seat, and realizes adjustment.
  • the valve needle is inserted in the screw and one end of the valve needle is matched with the valve core seat.
  • the spring is located in the screw and sleeved on the outside of the valve needle, and the two ends of the spring abut the screw and the valve needle respectively, so as to ensure the synchronous movement of the screw and the valve needle.
  • the first channel and the second channel improve the balance ability of the first cavity and the second cavity, and the balance effect is better
  • Both the first channel and the second channel are at the edge of the nut and the guide sleeve, which avoids the balance hole design, does not need to do core pulling action, the mold design is simplified, the efficiency is improved, and the cost is reduced;
  • the positioning ribs and positioning grooves not only realize the second channel, but also have a directional effect on the assembly of the nut and the guide sleeve, ensuring the accuracy and reliability of the installation.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Valve Housings (AREA)
  • Electrically Driven Valve-Operating Means (AREA)

Abstract

一种电子膨胀阀，包括：阀座组件（10），阀座组件（10）具有阀腔；导向套（20），导向套（20）设置在阀腔内并与阀座组件（10）连接；螺母（30），螺母（30）设置在阀腔内，并将阀腔分为第一腔体（11）和第二腔体（12），螺母（30）的外壁与阀腔的内壁之间形成有连通第一腔体（11）和第二腔体（12）的第一通道（40），螺母（30）的至少一部分套设在导向套（20）外侧，螺母（30）的内壁与导向套（20）的外壁形成有连通第一腔体（11）和第二腔体（12）的第二通道（50）；用于控制电子膨胀阀的通断状态的阀芯组件（60）；转子组件（70），该技术方案解决了现有技术中的电子膨胀阀内两个腔体平衡效果差的问题。

Description

电子膨胀阀 技术领域
本申请涉及阀门技术领域，具体而言，涉及一种电子膨胀阀。
背景技术
电子膨胀阀通常会在其内部形成两个腔体，这两个腔体内的压力需要进行平衡才能够保证电子膨胀阀的正常工作，目前的电子膨胀阀通常是在螺母和外侧阀座之间形成间隙，或者开设一个通道，该设计确实具有平衡两个腔体的作用，但由于间隙或者通道或者开孔通常较小，因而平衡效果较差，并且由于需要对正才能够发挥平衡作用，装配的要求较高，在装配上也有一定的困难。
发明内容
本申请的主要目的在于提供一种电子膨胀阀，以解决现有技术中的电子膨胀阀内两个腔体平衡效果差的问题。
为了实现上述目的，本申请提供了一种电子膨胀阀，包括：阀座组件，阀座组件具有阀腔；导向套，导向套设置在阀腔内并与阀座组件连接；螺母，螺母设置在阀腔内，并将阀腔分为第一腔体和第二腔体，螺母的外壁与阀腔的内壁之间形成有连通第一腔体和第二腔体的第一通道，螺母的至少一部分套设在导向套外侧，螺母的内壁与导向套的外壁形成有连通第一腔体和第二腔体的第二通道；用于控制电子膨胀阀的通断状态的阀芯组件，阀芯组件可活动地穿设在螺母和导向套上，并与螺母配合；转子组件，转子组件相对于阀座组件可转动设置，并与阀芯组件连接，转子组件能够带动阀芯组件同步转动，以改变电子膨胀阀的通断状态。
在一个可选的实施例方式中，导向套的侧面开设有定位槽，且定位槽与导向套的端面连通，螺母的内侧具有定位筋，定位筋伸入至定位槽内，且定位筋与定位槽之间形成第一间隙，第一间隙作为第二通道的至少一部分。
在一个可选的实施例方式中，导向套包括顺次连接的大径段和小径段，且大径段远离小径段的一端与阀座组件连接，螺母具有顺次连接的缩径段、第一扩径段和第二扩径段，且第二扩径段套设在大径段外侧，第一扩径段套设在小径段外侧，定位槽沿导向套的轴向穿设在大径段和小径段上，定位筋位于第一扩径段的端面上。
在一个可选的实施例方式中，缩径段和第一扩径段之间的台阶面与小径段的端面之间形成第二间隙，第二间隙与第一间隙连通并形成第二通道。
在一个可选的实施例方式中，定位筋位于第二扩径段内，第二扩径段的外壁具有缺口部，缺口部沿螺母的轴向贯穿第二扩径段，缺口部作为第一通道的至少一部分。
在一个可选的实施例方式中，螺母还具有用于避让外部管路的避让缺口，导向套侧面具有与外部管路连通的通孔，当定位筋位于定位槽内时，外部管路的一部分位于避让缺口内。
在一个可选的实施例方式中，螺母的外壁具有缺口部，电子膨胀阀还包括压板，压板与阀腔的内壁连接，并将螺母压紧在阀座组件上，压板的外缘开设有与缺口部连通的过孔，缺口部和过孔形成第一通道。
在一个可选的实施例方式中，过孔为一个或多个，当过孔设置有多个时，各过孔沿压板的周向设置。
在一个可选的实施例方式中，螺母的外壁具有凸筋，压板套设在螺母外侧，且压板的内壁具有凹槽，凸筋容纳在凹槽内，并使压板相对于螺母无法转动。
在一个可选的实施例方式中，凸筋和凹槽均设置有多个，并沿压板的周向设置，且凸筋与凹槽一一对应设置。
应用本申请的技术方案，通过在螺母和阀座组件之间形成有第一通道，同时导向套和螺母之间形成有第二通道，第一通道和第二通道均连通第一腔体和第二腔体，这样，两个通道的设置提高了平衡第一腔体和第二腔体的平衡能力，平衡效果更好，并且第一通道和第二通道均在螺母和导向套的边缘处，避免了平衡小孔设计，不需要做抽芯动作，模具设计得到简化，提高效率，降低成本。
附图说明
构成本申请的一部分的说明书附图用来提供对本申请的进一步理解，本申请的示意性实施例及其说明用于解释本申请，并不构成对本申请的不当限定。在附图中：
图1示出了本申请的电子膨胀阀的主视图；
图2示出了图1中P处的放大图；
图3示出了图1中的电子膨胀阀的侧视图；
图4示出了图3中Q处的放大图；
图5示出了图1中的电子膨胀阀的导向套的结构示意图；
图6示出了图1中的电子膨胀阀的螺母的结构示意图；
图7示出了图6中的螺母的另一个视角的结构示意图；以及
图8示出了图1中的电子膨胀阀的去掉上套管、转子组件和阀芯组件时的结构示意图。
其中，上述附图包括以下附图标记：
10、阀座组件；11、第一腔体；12、第二腔体；20、导向套；21、定位槽；22、大径段；23、小径段；24、通孔；30、螺母；31、定位筋；32、第一扩径段；33、缩径段；34、第二扩径段；35、避让缺口；36、凸筋；40、第一通道；41、缺口部；42、过孔；50、第二通道；51、第一间隙；52、第二间隙；60、阀芯组件；70、转子组件；80、压板；81、凹槽；91、第一连接管；92、第二连接管。
具体实施方式
需要说明的是，在不冲突的情况下，本申请中的实施例及实施例中的特征可以相互组合。下面将参考附图并结合实施例来详细说明本申请。
为了解决现有技术中的电子膨胀阀内两个腔体平衡效果差的问题，本申请提供了一种电子膨胀阀。
如图1至图8所示的一种电子膨胀阀，包括阀座组件10、导向套20、螺母30、用于控制电子膨胀阀的通断状态的阀芯组件60和转子组件70，阀座组件10具有阀腔；导向套20设置在阀腔内并与阀座组件10连接；螺母30设置在阀腔内，并将阀腔分为第一腔体11和第二腔体12，螺母30的外壁与阀腔的内壁之间形成有连通第一腔体11和第二腔体12的第一通道40，螺母30的至少一部分套设在导向套20外侧，螺母30的内壁与导向套20的外壁形成有连通第一腔体11和第二腔体12的第二通道50；阀芯组件60可活动地穿设在螺母30和导向套20上，并与螺母30配合；转子组件70相对于阀座组件10可转动设置，并与阀芯组件60连接，转子组件70能够带动阀芯组件60同步转动，以改变电子膨胀阀的通断状态。
本实施例通过在螺母30和阀座组件10之间形成有第一通道40，同时导向套20和螺母30之间形成有第二通道50，第一通道40和第二通道50均连通第一腔体11和第二腔体12，如图1至图4所示，这样，两个通道的设置提高了平衡第一腔体11和第二腔体12的平衡能力，平衡效果更好，并且第一通道40和第二通道50均在螺母30和导向套20的边缘处，避免了平衡小孔设计，不需要做抽芯动作，模具设计得到简化，提高效率，降低成本。
如图5和图7所示，导向套20的侧面开设有定位槽21，且定位槽21与导向套20的端面连通，螺母30的内侧具有定位筋31，定位筋31伸入至定位槽21内，且定位筋31与定位槽21之间形成第一间隙51，第一间隙51作为第二通道50的至少一部分。之所以将定位槽21与导向套20的端面连通，是考虑到组装部件时，是将螺母30沿导向套20的轴向套设到导向套20的外侧，这样定位筋31可以顺利进入到定位槽21中。定位槽21和定位筋31的设置，一方面作为形成第二通道50的结构基础，定位槽21和定位筋31之间通过大小结构配合自然就能够形成第一间隙51，不需要额外设置，另一方面在组装导向套20和螺母30时方便快捷，保证安装的准确性和可靠性。
如图6和图7所示，导向套20包括顺次连接的大径段22和小径段23，且大径段22远离小径段23的一端与阀座组件10连接，螺母30具有顺次连接的缩径段33，第一扩径段32和 第二扩径段34，且第一扩径段32套设在小径段23外侧，第二扩径段34只覆盖大径段22的部分节段，定位槽21沿导向套20的轴向穿设在大径段22和小径段23上，定位筋31位于第一扩径段32的端面上。这样当螺母30的第二扩径段34套在导向套20的大径段22上时，定位筋31会同时伸入到定位槽21内，从而使得螺母30相对于导向套20无法转动。
由于上述的设置方式，缩径段33和第一扩径段32之间自然会形成台阶面，若该台阶面与小径段23的端面紧密抵接，则第一腔体11和第二腔体12之间无法通过第二通道50实现有效连通，因此，缩径段33和第一扩径段32之间的台阶面与小径段23的端面之间间隙设置，二者之间形成第二间隙52，且第二间隙52与第一间隙51连通，这样，第一腔体11和第二腔体12之间就通过第一间隙51和第二间隙52实现连通，自然地，第二间隙52与第一间隙51配合即作为第二通道50。
在本实施例中，定位筋31位于第二扩径段34内，第二扩径段34的外壁具有缺口部41，缺口部41即与阀座组件10的内壁之间形成间隙，缺口部41作为第一通道40的至少一部分，并且缺口部41沿螺母30的轴向贯穿第二扩径段34，从而使得第一腔体11和第二腔体12之间通过缺口部41连通。
优选地，螺母30和导向套20均为树脂注塑件。
如图1所示，阀座组件10与外部管路连接，其中的外部管路包括与阀座组件10侧面连接的第一连接管91以及与阀座组件10底面连接的第二连接管92，由于第一连接管91在阀座组件10侧面，因而第一连接管91与螺母30之间可能会发生干涉，为了避免该情况，在螺母30的侧面还具有用于避让第一连接管91的避让缺口35，由于第一连接管91一般为圆形管，因而避让缺口35呈半圆形，如图7所示，并套在第一连接管91外，相应地，导向套20侧面具有通孔24，通孔24与导向套20轴线上的中心孔连通，并且通孔24还与第一连接管91对齐，而第一连接管91、避让缺口35和通孔24三者的位置需要按照上述方向设置才能够实现电子膨胀阀的阀门作用，因此在将导向套20安装到阀座组件10上时，需要调整导向套20的周向位置，使得通孔24对齐第一连接管91，而避让缺口35与第一连接管91的位置则是依靠定位槽21和定位筋31之间的配合实现的，也就是说，当定位筋31位于定位槽21内时，避让缺口35对齐第一连接管91，第一连接管91的一部分位于避让缺口35内，从而实现第一连接管91、避让缺口35和通孔24三者位置定向准确组装。
在本实施例中，电子膨胀阀还包括压板80，压板80与阀腔的内壁连接，并将螺母30压紧在阀座组件10上，这样，螺母30通过压板80就可固定在阀座组件10上，压板80的外缘开设有与缺口部41对齐连通的过孔42，缺口部41和过孔42共同形成第一通道40，这样，第一腔体11和第二腔体12通过缺口部41和压板80上的过孔42实现连通。
可选地，缺口部41和过孔42可以均为一个，也可以分别设置有多个，本实施例优选缺口部41与过孔42均设置有多个且一一对应设置，缺口部41和过孔42沿压板80的周向设置，这样，就形成有多个第一通道40，提高第一腔体11和第二腔体12之间的连通效果。
如图6和图8所示，为了避免套在螺母30外侧的压板80相对于螺母30发生转动导致缺口部41与过孔42不对齐的情况发生，本实施例在螺母30的外壁设置有凸筋36，且压板80的内壁开设有凹槽81，凸筋36容纳在凹槽81内，通过凸筋36和凹槽81的配合使得压板80相对于螺母30无法转动，保证压板80安装到螺母30上时过孔42始终与缺口部41对齐，也就保证了第一通道40的平衡效果。
可选地，凸筋36和凹槽81均设置有多个，并沿压板80的周向均匀设置，且凸筋36与凹槽81一一对应设置，以保证压板80与螺母30之间受力平衡。
在本实施例中，阀座组件10包括下阀座、上套管和阀座芯，其中下阀座和上套管对接共同形成阀腔，其他各部件均容纳在阀腔内，下阀座的侧面和底面开设有连通孔24，用于与第一连接管91和第二连接管92连通，在底面上的连通口处安装有阀芯座，阀芯座呈套筒状，从第二连接管92进入的流体依次通过阀芯座、导向套20进入阀腔，并从阀腔经由第一连接管91流出，而电子膨胀阀的打开和关闭是通过阀芯组件60与阀芯座之间的配合实现的，具体而言，阀芯组件60的一端能够伸入或退出阀芯座，从而改变阀芯座上的阀口的开度实现流量的调节。
本实施例的阀芯组件60包括螺杆、阀针和弹簧，其中，螺杆与螺母30螺纹配合，并与转子组件70连接，转子组件70在外部磁力的带动下转动，通过螺杆与螺母30之间的螺纹配合实现阀芯组件60的轴向移动，从而改变阀芯组件60与阀芯座之间的距离，实现调节，阀针穿设在螺杆内并且阀针的一端与阀芯座之间配合调节，弹簧位于螺杆内，并且套设在阀针外侧，弹簧的两端分别与螺杆和阀针抵接，从而保证螺杆与阀针同步运动。
需要说明的是，上述实施例中的多个指的是至少两个。
从以上的描述中，可以看出，本申请上述的实施例实现了如下技术效果：
1、解决了现有技术中的电子膨胀阀内两个腔体平衡效果差的问题；
2、第一通道和第二通道提高了平衡第一腔体和第二腔体的平衡能力，平衡效果更好；
3、第一通道和第二通道均在螺母和导向套的边缘处，避免了平衡小孔设计，不需要做抽芯动作，模具设计得到简化，提高效率，降低成本；
4、定位筋和定位槽在实现第二通道的同时还对螺母和导向套的组装起到了定向作用，保证安装的准确性和可靠性。
显然，上述所描述的实施例仅仅是本申请一部分的实施例，而不是全部的实施例。基于本申请中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都应当属于本申请保护的范围。
以上所述仅为本申请的优选实施例而已，并不用于限制本申请，对于本领域的技术人员来说，本申请可以有各种更改和变化。凡在本申请的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本申请的保护范围之内。

Claims (10)

  1. 一种电子膨胀阀，其特征在于，包括：
    阀座组件(10)，所述阀座组件(10)具有阀腔；
    导向套(20)，所述导向套(20)设置在所述阀腔内并与所述阀座组件(10)连接；
    螺母(30)，所述螺母(30)设置在所述阀腔内，并将所述阀腔分为第一腔体(11)和第二腔体(12)，所述螺母(30)的外壁与所述阀腔的内壁之间形成有连通所述第一腔体(11)和所述第二腔体(12)的第一通道(40)，所述螺母(30)的至少一部分套设在所述导向套(20)外侧，所述螺母(30)的内壁与所述导向套(20)的外壁形成有连通所述第一腔体(11)和所述第二腔体(12)的第二通道(50)；
    用于控制所述电子膨胀阀的通断状态的阀芯组件(60)，所述阀芯组件(60)可活动地穿设在所述螺母(30)和所述导向套(20)上，并与所述螺母(30)配合；
    转子组件(70)，所述转子组件(70)相对于所述阀座组件(10)可转动设置，并与所述阀芯组件(60)连接，所述转子组件(70)能够带动所述阀芯组件(60)同步转动，以改变所述电子膨胀阀的通断状态。
  2. 根据权利要求1所述的电子膨胀阀，其特征在于，所述导向套(20)的侧面开设有定位槽(21)，且所述定位槽(21)与所述导向套(20)的端面连通，所述螺母(30)的内侧具有定位筋(31)，所述定位筋(31)伸入至所述定位槽(21)内，且所述定位筋(31)与所述定位槽(21)之间形成第一间隙(51)，所述第一间隙(51)作为所述第二通道(50)的至少一部分。
  3. 根据权利要求2所述的电子膨胀阀，其特征在于，所述导向套(20)包括顺次连接的大径段(22)和小径段(23)，且所述大径段(22)远离所述小径段(23)的一端与所述阀座组件(10)连接，所述螺母(30)具有顺次连接的缩径段(33)、第一扩径段(32)和第二扩径段(34)，且所述第二扩径段(34)套设在所述大径段(22)外侧，所述第一扩径段(32)套设在所述小径段(23)外侧，所述定位槽(21)沿所述导向套(20)的轴向穿设在所述大径段(22)和所述小径段(23)上，所述定位筋(31)位于所述第一扩径段(32)的端面上。
  4. 根据权利要求3所述的电子膨胀阀，其特征在于，所述缩径段(33)和所述第一扩径段(32)之间的台阶面与所述小径段(23)的端面之间形成第二间隙(52)，所述第二间隙(52)与所述第一间隙(51)连通并形成所述第二通道(50)。
  5. 根据权利要求3所述的电子膨胀阀，其特征在于，所述定位筋(31)位于所述第二扩径段(34)内，所述第二扩径段(34)的外壁具有缺口部(41)，所述缺口部(41)沿所述螺母(30)的轴向贯穿所述第二扩径段(34)，所述缺口部(41)作为所述第一通道(40)的至少一部分。
  6. 根据权利要求2所述的电子膨胀阀，其特征在于，所述螺母(30)还具有用于避让外部管路的避让缺口(35)，所述导向套(20)侧面具有与所述外部管路连通的通孔(24)，当所述定位筋(31)位于所述定位槽(21)内时，所述外部管路的一部分位于所述避让缺口(35)内。
  7. 根据权利要求1所述的电子膨胀阀，其特征在于，所述螺母(30)的外壁具有缺口部(41)，所述电子膨胀阀还包括压板(80)，所述压板(80)与所述阀腔的内壁连接，并将所述螺母(30)压紧在所述阀座组件(10)上，所述压板(80)的外缘开设有与所述缺口部(41)连通的过孔(42)，所述缺口部(41)和所述过孔(42)形成所述第一通道(40)。
  8. 根据权利要求7所述的电子膨胀阀，其特征在于，所述过孔(42)为一个或多个，当所述过孔(42)设置有多个时，各所述过孔(42)沿所述压板(80)的周向设置。
  9. 根据权利要求7所述的电子膨胀阀，其特征在于，所述螺母(30)的外壁具有凸筋(36)，所述压板(80)套设在所述螺母(30)外侧，且所述压板(80)的内壁具有凹槽(81)，所述凸筋(36)容纳在所述凹槽(81)内，并使所述压板(80)相对于所述螺母(30)无法转动。
  10. 根据权利要求9所述的电子膨胀阀，其特征在于，所述凸筋(36)和所述凹槽(81)均设置有多个，并沿所述压板(80)的周向设置，且所述凸筋(36)与所述凹槽(81)一一对应设置。
PCT/CN2020/109831 2019-11-19 2020-08-18 电子膨胀阀 WO2021098303A1 (zh)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2022524920A JP7418564B2 (ja) 2019-11-19 2020-08-18 電子膨張弁
KR1020227019115A KR20220092613A (ko) 2019-11-19 2020-08-18 전자 팽창 밸브

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201911137317.9 2019-11-19
CN201911137317.9A CN112901801B (zh) 2019-11-19 2019-11-19 电子膨胀阀

Publications (1)

Publication Number Publication Date
WO2021098303A1 true WO2021098303A1 (zh) 2021-05-27

Family

ID=75980320

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2020/109831 WO2021098303A1 (zh) 2019-11-19 2020-08-18 电子膨胀阀

Country Status (4)

Country Link
JP (1) JP7418564B2 (zh)
KR (1) KR20220092613A (zh)
CN (2) CN114183547A (zh)
WO (1) WO2021098303A1 (zh)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114183547A (zh) * 2019-11-19 2022-03-15 浙江盾安禾田金属有限公司 电子膨胀阀
KR20240049633A (ko) * 2021-09-02 2024-04-16 제지앙 둔안 아트피셜 인바이런먼트 컴퍼니 리미티드 밸브 어셈블리 및 이를 구비한 전자 팽창 밸브

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003148643A (ja) * 2001-09-03 2003-05-21 Saginomiya Seisakusho Inc 電動弁
CN2637833Y (zh) * 2003-07-02 2004-09-01 浙江三花集团有限公司 一种用于节流降压和调节流量的电子膨胀阀
JP2014137127A (ja) * 2013-01-18 2014-07-28 Fuji Koki Corp 電動弁
CN107883003A (zh) * 2017-12-14 2018-04-06 浙江中宝自控元件有限公司 一种用于调节流体流量的电动阀
CN207864635U (zh) * 2018-01-02 2018-09-14 浙江三花智能控制股份有限公司 一种电子膨胀阀
CN108999990A (zh) * 2017-06-07 2018-12-14 浙江盾安禾田金属有限公司 电子膨胀阀
CN109323006A (zh) * 2017-08-01 2019-02-12 浙江盾安机械有限公司 电子膨胀阀

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102454818A (zh) * 2010-10-15 2012-05-16 浙江三花股份有限公司 一种电动阀
KR101455952B1 (ko) * 2010-10-15 2014-10-28 쯔지앙 산화 컴퍼니 리미티드 전동밸브
CN103388939B (zh) * 2012-05-11 2016-06-01 浙江三花股份有限公司 一种电子膨胀阀
CN104482274B (zh) * 2014-10-28 2016-09-14 珠海格力电器股份有限公司 电子膨胀阀
CN106763989B (zh) * 2015-11-25 2019-11-12 浙江盾安人工环境股份有限公司 电子膨胀阀
CN107289144B (zh) * 2016-04-11 2020-09-29 浙江盾安人工环境股份有限公司 一种电子膨胀阀
CN107435753B (zh) * 2016-05-25 2019-12-24 浙江三花智能控制股份有限公司 电子膨胀阀及具有其的制冷设备
CN109958775B (zh) * 2017-12-25 2021-12-07 浙江盾安机械有限公司 一种电子膨胀阀
CN109990103A (zh) * 2018-01-02 2019-07-09 浙江三花智能控制股份有限公司 一种电子膨胀阀
CN211175434U (zh) * 2019-11-19 2020-08-04 浙江盾安禾田金属有限公司 电子膨胀阀
CN114183547A (zh) * 2019-11-19 2022-03-15 浙江盾安禾田金属有限公司 电子膨胀阀
CN112901790B (zh) * 2019-11-19 2022-05-10 浙江盾安禾田金属有限公司 电子膨胀阀

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003148643A (ja) * 2001-09-03 2003-05-21 Saginomiya Seisakusho Inc 電動弁
CN2637833Y (zh) * 2003-07-02 2004-09-01 浙江三花集团有限公司 一种用于节流降压和调节流量的电子膨胀阀
JP2014137127A (ja) * 2013-01-18 2014-07-28 Fuji Koki Corp 電動弁
CN108999990A (zh) * 2017-06-07 2018-12-14 浙江盾安禾田金属有限公司 电子膨胀阀
CN109323006A (zh) * 2017-08-01 2019-02-12 浙江盾安机械有限公司 电子膨胀阀
CN107883003A (zh) * 2017-12-14 2018-04-06 浙江中宝自控元件有限公司 一种用于调节流体流量的电动阀
CN207864635U (zh) * 2018-01-02 2018-09-14 浙江三花智能控制股份有限公司 一种电子膨胀阀

Also Published As

Publication number Publication date
CN112901801A (zh) 2021-06-04
JP7418564B2 (ja) 2024-01-19
JP2023501157A (ja) 2023-01-18
CN114183547A (zh) 2022-03-15
CN112901801B (zh) 2022-02-11
KR20220092613A (ko) 2022-07-01

Similar Documents

Publication Publication Date Title
WO2021098303A1 (zh) 电子膨胀阀
WO2021098302A1 (zh) 电子膨胀阀
EP3219858A1 (en) A temperature controlling tap
WO2008151565A1 (fr) Valve de réglage de la pression
WO2013000389A1 (zh) 一种流量调节阀
TW201715164A (zh) 用於止回閥之可調限位器
CN115111378A (zh) 电动阀
EP2995384B1 (en) Rotating handle switching shower head
WO2022233322A1 (zh) 膨胀阀
WO2022100569A1 (zh) 电动阀
WO2020248760A1 (zh) 电子膨胀阀
CN106051265B (zh) 阀与阀组件
CN110966445A (zh) 阀组件、电动阀以及热管理组件
WO2022042710A1 (zh) 一种双流道结构以及喷枪
WO2021233185A1 (zh) 四通换向阀
US9637892B2 (en) Vertical faucet structure
CN112324931A (zh) 一种微流控多档位流量调节器
WO2019179519A1 (zh) 电子膨胀阀
JP7291228B2 (ja) 切換弁及びそれを含む冷却システム
WO2023036253A1 (zh) 电磁阀
US20160319941A1 (en) Ball valve assembly
JP2008272613A (ja) 自動スプレーガンのマニホールド着脱装置
WO2021057296A1 (zh) 电磁三通阀装配方法及电磁三通阀
WO2024066337A1 (zh) 电磁阀
CN210397793U (zh) 一种厨房龙头

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 20889627

Country of ref document: EP

Kind code of ref document: A1

ENP Entry into the national phase

Ref document number: 2022524920

Country of ref document: JP

Kind code of ref document: A

ENP Entry into the national phase

Ref document number: 20227019115

Country of ref document: KR

Kind code of ref document: A

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 20889627

Country of ref document: EP

Kind code of ref document: A1