WO2022242736A1 - 可逆电磁阀及具有其的空调机组 - Google Patents

可逆电磁阀及具有其的空调机组 Download PDF

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Publication number
WO2022242736A1
WO2022242736A1 PCT/CN2022/094038 CN2022094038W WO2022242736A1 WO 2022242736 A1 WO2022242736 A1 WO 2022242736A1 CN 2022094038 W CN2022094038 W CN 2022094038W WO 2022242736 A1 WO2022242736 A1 WO 2022242736A1
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WIPO (PCT)
Prior art keywords
sealing
groove
hole
valve
solenoid valve
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/CN2022/094038
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English (en)
French (fr)
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WO2022242736A8 (zh
Inventor
冯忠波
熊匀均
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Zhejiang Dunan Artificial Environment Co Ltd
Original Assignee
Zhejiang Dunan Artificial Environment Co Ltd
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 CN202121097730.XU external-priority patent/CN217977457U/zh
Priority claimed from CN202111489240.9A external-priority patent/CN116241706A/zh
Application filed by Zhejiang Dunan Artificial Environment Co Ltd filed Critical Zhejiang Dunan Artificial Environment Co Ltd
Priority to JP2023564126A priority Critical patent/JP7738674B2/ja
Priority to EP22804056.4A priority patent/EP4328470A4/en
Publication of WO2022242736A1 publication Critical patent/WO2022242736A1/zh
Publication of WO2022242736A8 publication Critical patent/WO2022242736A8/zh
Priority to US18/513,546 priority patent/US12385569B2/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • 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
    • F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
    • F16K3/02—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor
    • F16K3/0254—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor being operated by particular means
    • 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
    • F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
    • F16K3/02—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor
    • F16K3/029—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor with two or more gates
    • 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
    • F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
    • F16K3/02—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor
    • F16K3/16—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor with special arrangements for separating the sealing faces or for pressing them together
    • F16K3/18—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor with special arrangements for separating the sealing faces or for pressing them together by movement of the closure 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
    • F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
    • F16K31/122—Actuating devices; Operating means; Releasing devices actuated by fluid the fluid acting on a piston
    • 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
    • F25B13/00—Compression machines, plants or systems, with reversible cycle
    • 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
    • F25B41/20—Disposition of valves, e.g. of on-off valves or flow control valves
    • F25B41/26—Disposition of valves, e.g. of on-off valves or flow control valves of fluid flow reversing 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
    • F25B2313/00—Compression machines, plants or systems with reversible cycle not otherwise provided for
    • F25B2313/027—Compression machines, plants or systems with reversible cycle not otherwise provided for characterised by the reversing means

Definitions

  • the present application relates to the technical field of refrigeration, in particular to a reversible solenoid valve and an air conditioner unit having the same.
  • Reversible solenoid valves are usually installed in air conditioning units to achieve two-way flow of media.
  • the spool assembly of the related reversible solenoid valve includes a connecting rod, a slider and two piston units.
  • the unit slides, and the piston unit is sealed and slides in the valve cavity, which has a large friction force, and the medium needs to push the two piston units to slide, which requires a greater thrust, so that the reversible solenoid valve requires a larger valve opening pressure difference.
  • a reversible solenoid valve is provided.
  • a reversible solenoid valve comprising a valve body and a valve core assembly, the two sides of the valve body are respectively provided with a first communication port and a second communication port, the valve body has a valve cavity, and the valve core assembly is arranged on the In the valve cavity, the valve core assembly can slide in the valve cavity to communicate or block the first communication port and the second communication port;
  • the valve core assembly includes a piston unit, a connecting rod and A slider unit, the slider unit and the piston unit are respectively connected to both ends of the connecting rod, the slider unit is arranged close to the first communication port and the second communication port, the first The communication port and the second communication port are arranged oppositely, and the slider unit can block the first communication port and the second communication port at the same time, and the two sides of the piston unit can form a pressure difference to push The piston unit slides in the valve chamber.
  • the reversible solenoid valve includes an intermediate end cover and a second end cover, the intermediate end cover is fixed in the valve chamber, and the piston unit is arranged on the intermediate end cover away from the second end cover.
  • a communication port and one side of the second communication port, the middle end cover and the piston unit form a first cavity, and the piston unit and the second end cover form a second cavity.
  • the reversible solenoid valve further includes a pilot valve, and the pilot valve is arranged on the valve body; a first hole and a second hole are opened on the valve body, and the first hole and the second hole are connected to each other.
  • the first chamber communicates with the second hole
  • the pilot valve communicates with the first hole and the second hole respectively through a capillary, and controls the first hole through the pilot valve. The pressure difference between the first chamber and the second chamber.
  • the reversible solenoid valve further includes a first end cover, the first end cover is arranged on the end of the valve body away from the second end cover, the first end cover is connected to the The middle end cover forms a medium cavity, and the slider unit is arranged in the medium cavity; when the reversible solenoid valve is in the first position, the first communication port and the second communication port are respectively connected to the medium Cavity flow.
  • a first protrusion is provided on the side of the piston unit facing the middle end cover, when the piston unit moves toward the direction close to the first communication port and the second communication port , the first protrusion can be abutted against the middle end cover; and/or, the piston unit is provided with a second protrusion on the side facing the second end cover, and when the piston unit faces the side close to the When the direction of the second end cap moves, the second protrusion can abut against the second end cap.
  • the side of the piston unit facing the middle end cover is provided with a first protrusion
  • the first protrusion is ring-shaped
  • the side of the first protrusion is provided with a first throttle hole
  • the medium can flow out of the groove formed by the first protrusion through the first orifice
  • the side of the piston unit facing the second end cap is provided with a second protrusion
  • the second protrusion is in the shape of a ring
  • a second throttle hole is opened on the side of the second protrusion, and the medium can flow out of the groove formed by the second protrusion through the second throttle hole.
  • the piston unit is provided with a first protrusion facing the side of the intermediate end cover, the first protrusion is ring-shaped, and the first protrusion is opened towards the end surface of the intermediate end cover.
  • the second protrusion is ring-shaped, and the second protrusion is provided with a second throttling groove toward the end surface of the second end cover, and the medium can flow out of the second throttling groove through the second throttling groove. Grooves formed by protrusions.
  • the slider unit includes a first part and a second part that are oppositely arranged, the first part can block the first communication port, and the second part can block the first communication port.
  • Two communication ports there is an accommodating cavity between the first part and the second part, an elastic member is provided in the accommodating cavity, and the two ends of the elastic member abut against the first part and the second part respectively The second part.
  • the valve cavity includes a medium cavity
  • the slider unit is arranged in the medium cavity
  • the first part and/or the second part is provided with a balance hole
  • the medium The cavity communicates with the accommodating cavity through the balance hole.
  • the slider unit further includes a guide frame sheathed on the outer sides of the first part and the second part and connected with the connecting rod.
  • the present application also provides an air conditioning unit, including the above-mentioned reversible solenoid valve.
  • FIG. 1 is a schematic cross-sectional view of a related reversible solenoid valve.
  • FIG. 2 is an overall structural diagram of a reversible solenoid valve according to some embodiments.
  • FIG 3 is a schematic cross-sectional view of a reversible solenoid valve according to some embodiments.
  • FIG. 4 is a schematic diagram of an orifice according to some embodiments.
  • FIG. 5 is a schematic cross-sectional view of a reversible solenoid valve according to some embodiments.
  • FIG. 6 is a schematic illustration of a throttle slot according to some embodiments.
  • FIG. 7 is a schematic cross-sectional view of a reversible solenoid valve according to some embodiments.
  • FIG. 8 is a schematic cross-sectional view of a reversible solenoid valve according to some embodiments.
  • FIG. 9 is a partially enlarged schematic diagram of the reversible solenoid valve in FIG. 8 .
  • FIG. 10 is a schematic cross-sectional view of a first sealing seat in a reversible solenoid valve according to some embodiments.
  • FIG. 11 is a schematic cross-sectional view of a second sealing seat in a reversible solenoid valve according to some embodiments.
  • FIG. 12 is a schematic cross-sectional view of an intermediate end cap of a reversible solenoid valve according to some embodiments.
  • Figure 13 is a schematic diagram of the relationship between an air conditioning unit and a reversible solenoid valve according to some embodiments.
  • Second throttle hole; 2122 the second throttle groove; 213, the first piston bowl; 214, the second piston bowl; 215, the middle baffle; 216, the first baffle; 217, the second baffle; 22, the connecting rod; 23, the slider Unit; 231, first part; 2311, balance hole; 232, second part; 233, accommodation chamber; 234, elastic member; 235, guide frame; 30, middle end cover; 31, through hole; 311, installation groove ; 312, sealing ring; 32, first end cover; 33, second end cover; 40, casing; 50, first sealing seat; 51, first installation groove; 511, annular flange; 512, third sealing Groove; 52, first through hole; 53, first sealing groove; 54, welding groove; 60, second sealing seat; 61, second through hole; 611, second sealing groove; 70, first sealing ring; 80 , the second sealing ring; 90, the third sealing ring; 101, the related reversible solenoid valve; 1011, the related valve core assembly; 1012, the related connecting rod; 10
  • a component when a component is said to be “mounted on” another component, it may be directly on the other component or there may be an intervening component.
  • a component When a component is said to be “set on” another component, it may be set directly on the other component or there may be an intervening component at the same time.
  • a component When a component is said to be “fixed” to another component, it may be directly fixed to the other component or there may be an intervening component at the same time.
  • the reversible solenoid valve 100 provided by the present application is installed in the air-conditioning unit 200 and is used to control the connection or isolation of pipelines, so as to realize the two-way flow of media.
  • the reversible solenoid valve 100 of the present application can be used in an air-conditioning unit 200 that requires two-way operation, for example, it can be installed in an air-conditioning unit 200 that needs to have two functions of cooling mode and heating mode at the same time, so as to realize the two-way flow of the medium without switching pipeline.
  • the medium in this application refers to refrigerant.
  • the relevant spool assembly 1011 of the relevant reversible solenoid valve 101 includes a relevant connecting rod 1012, a relevant slider 1014 and two relevant piston units 1013, and the two relevant piston units 1013 are respectively connected to the relevant
  • the two ends of the connecting rod 1012 need to push the two related piston units 1013 to slide when the medium pushes the related valve core assembly 1011 to move, and the related piston units 1013 are sealed and slid in the related valve cavity 1015 If the medium needs to push the two related piston units 1013 to slide, a larger thrust is required, so that the related reversible solenoid valve 101 requires a larger valve opening pressure difference.
  • the reversible solenoid valve 100 provided by the present application includes a valve body 10 and a valve core assembly 20, the two sides of the valve body 10 are respectively provided with a first communication port 11 and a second communication port 12, and the valve body 10 has a valve cavity 13.
  • the spool assembly 20 is disposed in the valve cavity 13 , and the spool assembly 20 can slide in the valve cavity 13 to communicate or block the first communication port 11 and the second communication port 12 .
  • a first connecting pipe 111 is provided in the first communication port 11
  • a second connecting pipe 121 is provided in the second communication port 12
  • the first connecting pipe 111 and the second connecting pipe 121 are respectively connected to the pipelines of the air conditioning unit. .
  • the reversible solenoid valve 100 also includes a valve seat 16, the valve seat 16 is installed in the valve chamber 13, the first communication port 11 and the second communication port 12 run through the valve body 10 and the valve seat 16, and one end of the valve core assembly 20 can be positioned on the valve seat. 16 to connect or block the first communication port 11 and the second communication port 12 .
  • the spool assembly 20 includes a piston unit 21, a connecting rod 22 and a slider unit 23, the slider unit 23 and the piston unit 21 are respectively connected to the two ends of the connecting rod 22, the slider unit 23 is close to the first communication
  • the port 11 and the second communication port 12 are provided, and a pressure difference can be formed on both sides of the piston unit 21 to push the piston unit 21 to slide in the valve cavity 13 .
  • a single piston unit 21 is set to drive the slider unit 23 to move in the valve cavity 13 to communicate or cut off the first communication port 11 and the second communication port 12, which can reduce the thrust required to push the piston unit 21, thereby Reduce the valve opening pressure difference required for the reversible solenoid valve 100 to open the valve, and improve the reliability of the reversible solenoid valve 100 to open and close the valve at low pressure; at the same time, two piston units 1013 are provided relative to the relevant reversible solenoid valve 101
  • setting a single piston unit 21 reduces the number of parts, thereby reducing the overall volume of the reversible solenoid valve 100, making the reversible solenoid valve 100 miniaturized, saving materials, and reducing processing costs.
  • the first communication port 11 and the second communication port 12 are oppositely disposed, and the slider unit 23 can block the first communication port 11 and the second communication port 12 at the same time.
  • the reversible solenoid valve 100 is in the closed state, when the first communication port 11 is an inlet, the first communication port 11 is blocked by the slider unit 23 and cannot communicate; when the second communication port 12 is an inlet, the second communication port 12 is blocked by the slider unit 23 and cannot communicate, so that the reversible solenoid valve 100 works effectively.
  • the first communication port 11 of the reversible solenoid valve 100 can be an inlet
  • the second communication port 12 can be an inlet
  • the slider unit 23 can simultaneously The first communication port 11 and the second communication port 12 are blocked to prevent the medium from breaking the slider unit 23 and affecting the sealing performance.
  • the reversible solenoid valve 100 includes an intermediate end cover 30 and a second end cover 33, the intermediate end cover 30 is fixed in the valve cavity 13, and the piston unit 21 is arranged on the intermediate end cover 30 away from the first communication port 11 and the second communication port. 12, the middle end cover 30 and the piston unit 21 form a first cavity 131, and the piston unit 21 and the second end cover 33 form a second cavity 132; On the side, when there is a pressure difference between the first chamber 131 and the second chamber 132 , the piston unit 21 can be pushed to move, so as to drive the slider unit 23 to connect or block the first communication port 11 and the second communication port 12 .
  • the middle end cover 30 is provided with a through hole 31, and the inner wall of the through hole 31 is provided with an installation groove 311, and the installation groove 311 is used for installing the sealing ring 312;
  • the connecting rod 22 extends into the through hole 31, and a part of the connecting rod 22 faces toward the The direction of the first communication port 11 and the second communication port 12 extends, and the other part extends towards the direction close to the second end cover 33 , the connecting rod 22 can move in the through hole 31 , and between the connecting rod 22 and the middle end cover 30 They are sealed against each other by a sealing ring 312 .
  • the reversible solenoid valve 100 also includes a first end cover 32, the first end cover 32 is arranged on the end of the valve body 10 away from the second end cover 33, the first end cover 32 and the middle end cover 30 form a medium cavity 133, the slider unit 23 It is arranged in the medium cavity 133; when the reversible solenoid valve 100 is in the first position, the first communication port 11 and the second communication port 12 communicate with the medium cavity 133 respectively.
  • the first position refers to the position of each component when the reversible solenoid valve 100 is in an open state.
  • the medium chamber 133 facilitates the circulation of the medium. When the valve core assembly 20 slides away from the first communication port 11 and the second communication port 12, the first communication port 11 and the second communication port 12 can communicate through the medium chamber 133 , so that the medium can achieve two-way flow.
  • the first communication port 11 and the second communication port 12 are respectively located in the medium chamber 133, and the valve body 10 is provided with a first hole 14 and a second hole 15, and the first hole 14 and the second hole 15 are connected to each other.
  • the first cavity 131 communicates
  • the second hole 15 communicates with the second cavity 132
  • the first hole 14 is provided with a first capillary 141
  • the second hole 15 is provided with a second capillary 151
  • the first capillary 141 and the second capillary 151 is connected to the pilot valve 110 described below, so that the pressure difference between the first chamber 131 and the second chamber 132 is formed to push the piston unit 21 to move.
  • the high-pressure refrigerant enters the second cavity 132 from the second capillary 151, and the refrigerant in the first cavity 131 flows out from the first capillary 141, thereby pushing the piston unit 21 toward the first communication port. 11 and the direction movement of the second communication port 12;
  • the reversible solenoid valve 100 needs to be opened, the high-pressure refrigerant enters the first cavity 131 from the first capillary tube 141, and the refrigerant in the second cavity 132 flows out from the second capillary tube 151,
  • the piston unit 21 is pushed to move away from the first communication port 11 and the second communication port 12 .
  • the side of the piston unit 21 facing the middle end cover 30 is provided with a first protrusion 211, and when the piston unit 21 moves toward the direction close to the first communication port 11 and the second communication port 12, the first protrusion 211 can abut against the middle end cover 30, thereby reducing the impact force of the piston unit 21 on the middle end cover 30;
  • the first protrusion 211 is in a ring shape, and a first throttling hole 2111 is opened on a side of the first protrusion 211 .
  • the impact force of the piston unit 21 on the middle end cover 30 strengthens the firmness of the installation of the middle end cover 30 and reduces noise.
  • a first throttling groove 2112 is defined on the end surface of the first protrusion 211 facing the middle end cover 30 .
  • part of the medium can slowly flow out of the groove formed by the first protrusion 211 through the first throttling groove 2112 to form resistance and slow down
  • the impact force of the piston unit 21 on the middle end cover 30 strengthens the firmness of the installation of the middle end cover 30 and reduces noise.
  • the side of the piston unit 21 facing the second end cover 33 is provided with a second protrusion 212 , and when the piston unit 21 moves toward the direction close to the second end cover 33 , the second protrusion 212 The protrusion 212 can abut against the second end cover 33 , thereby reducing the impact force of the piston unit 21 on the second end cover 33 .
  • the second protrusion 212 is ring-shaped, and a second throttling hole 2121 is opened on a side of the second protrusion 212 .
  • a second throttling groove 2122 is defined on the end surface of the second protrusion 212 facing the second end cover 33 .
  • the piston unit 21 includes a first piston bowl 213, a second piston bowl 214, an intermediate baffle 215, a first baffle 216 and a second baffle 217, the first baffle 216, the intermediate baffle 215 and the second baffle
  • the plates 217 are connected to each other, and the first baffle plate 216 and the second baffle plate 217 are located on both sides of the middle baffle plate 215, and the first baffle plate 216 is arranged near the middle end cover 30;
  • the first piston bowl 213 is located between the first baffle plate 216 and the Between the middle baffle 215, the second piston bowl 214 is located between the middle baffle 215 and the second baffle 217; wherein, the first protrusion 211 is arranged on the first baffle 216, and the second protrusion 212 is arranged on the second baffle.
  • the slider unit 23 is disposed in the medium cavity 133, the slider unit 23 includes a first part 231 and a second part 232 oppositely arranged, the first part 231 can block the first communication port 11, and the second part The first part 232 can block the second communication port 12. There is an accommodating cavity 233 between the first part 231 and the second part 232.
  • the accommodating cavity 233 is provided with an elastic member 234, and the two ends of the elastic member 234 respectively abut against the first One part 231 and the second part 232; the interaction force generated between the elastic member 234 and the first part 231 and the second part 232 can spread the first part 231 and the second part 232, so that the first part 231 can pair
  • the sealing of the first communication port 11 and the sealing of the second communication port 12 by the second portion 232 improve the sealing performance during sealing.
  • a balance hole 2311 is opened on the first part 231 and/or the second part 232, the medium chamber 133 communicates with the accommodation chamber 233 through the balance hole 2311, and the balance hole 2311 can balance the medium chamber 133 and the accommodation chamber 233 The pressure prevents the medium from pressing against the slider unit 23, thereby ensuring the stability of the slider unit 23.
  • the slider unit 23 also includes a guide frame 235, the guide frame 235 is sleeved on the outside of the first part 231 and the second part 232 and connected with the connecting rod 22; the guide frame 235 plays a role for the slider unit 23 Limiting and guiding functions, preventing the slider unit 23 from tilting under the action of the medium, affecting its sealing performance with the first communication port 11 and the second communication port 12; at the same time, the first part 231 and the second part 232 are installed In the guide frame 235, the connecting rod 22 drives the first part 231 and the second part 232 to slide through the guide frame 235, which can reduce maintenance costs and improve utilization efficiency. When the guide frame 235 is worn or the connecting rod 22 is damaged, only the Replacement of lost parts facilitates replacement and maintenance and reduces costs.
  • the pilot valve 110 of the reversible solenoid valve 100 is arranged on the valve body 10, and is respectively connected with the first capillary 141 and the second capillary 151. Through the reversing of the pilot valve 110, the pressure difference on both sides of the piston unit 21 can be controlled, thereby pushing The piston unit 21 moves.
  • the pilot valve 110 is reversed, and the high-pressure refrigerant is passed from the second capillary tube 151 into the second cavity 132, and the refrigerant in the first cavity 131 flows out from the first capillary tube 141, thereby pushing The piston unit 21 moves toward the direction close to the first communication port 11 and the second communication port 12.
  • the piston unit 21 drives the slider unit 23 to move through the connecting rod 22 and the guide frame 235, so as to block the first communication port 11 and the second communication port. Mouth 12.
  • the present application has verified through experiments that the single piston unit 21 is used to drive, and the minimum operating pressure difference is almost half of that of the related dual-piston unit 1013.
  • the reversible solenoid valve 100 provided by the present application greatly improves the reliability of its operation under low pressure. This experiment is tested in an atmospheric environment.
  • the frictional force between the slider unit 23 and the valve seat 16 is F1
  • the frictional force between the sealing ring 312 and the valve core assembly 20 is F2
  • the frictional force between the piston unit 21 and the inner wall of the valve body 10 is F3
  • the force between the medium in the medium cavity 133 and the valve core assembly 20 is F4, the force required to close the valve is F5, and the force required to open the valve is F6;
  • the required force F5 is the product of the medium pressure in the second chamber 132 and the contact area between the medium in the second chamber 132 and the piston unit 21, where the contact area between the piston unit 21 and the medium in the second chamber 132 is the piston unit 21
  • the area facing the side of the second chamber 132; the force F6 required to open the valve is the product of the pressure of the medium in the first chamber 131 and the contact area between the medium in the first chamber 131 and the piston unit 21. It should be explained that here
  • the contact area between the piston unit 21 and the medium in the first chamber 131 is the area of the side of the piston unit 21 facing the first chamber 131 minus the cross-sectional area of the connecting rod 22 perpendicular to the axial direction.
  • the valve opening pressure difference is mainly caused by resistance.
  • the resistance of the reversible solenoid valve 100 provided by the application during the valve opening process is mainly F2 and F3, wherein, F2 ⁇ F3, and it is obtained through experiments that the minimum The valve opening pressure difference is about 0.11 MPa.
  • the reversible electromagnetic valve 100 provided by the application adopts the single piston unit 21 and the minimum valve opening pressure difference is about 0.06 MPa, and the minimum valve opening pressure difference is almost half of that when using the double piston unit 1013.
  • the reversible solenoid valve 100 provided by the present application adopts a single piston unit 21, which has lower resistance than the related double piston unit 1013, requires a smaller minimum valve opening pressure difference, and makes the axial length of the spool assembly 20 shorter, The volume is smaller, so that the space volume required for installation can be reduced, saving materials and reducing costs.
  • the structure of the second embodiment is basically the same as that of the first embodiment, the working principle and the verification principle of the valve opening pressure difference, the similarities will not be repeated, and the difference lies in the setting method of the valve body 10 in the second embodiment .
  • valve body 10 is set separately.
  • the valve body 10 in this embodiment includes a valve seat 16 and a sleeve 40 , an intermediate end cover 30 is disposed between the valve seat 16 and the sleeve 40 , and the intermediate end cover 30 is fixedly connected to the valve body 10 and the sleeve 40 respectively.
  • the first end cap 32 is disposed on the end of the valve seat 16 away from the sleeve 40 , or the first end cap 32 is not provided separately, and the valve seat 16 and the first end cap 32 are integrated.
  • the connecting rod 22 runs through the middle end cover 30, the slider unit 23 is located in the valve seat 16, and can slide in the valve seat 16, the piston unit 21 is located in the sleeve 40, and abuts against the inner wall of the sleeve 40, the piston unit 21 Under the effect of the pressure difference on both sides, the slider unit 23 can be driven to connect or block the first communication port 11 and the second communication port 12 .
  • the reversible solenoid valve includes: valve body 10, valve seat 16, slider unit 23 and connecting rod 22, valve seat 16 is arranged in valve body 10, valve seat 16 has valve port, slider unit 23 is slidably arranged in the valve seat 16 to close or open the valve port, and the connecting rod 22 and the slider unit 23 are drivingly connected;
  • the reversible solenoid valve includes a first sealing seat 50 and a second sealing seat 60, the first sealing seat 50 is arranged in the valve body 10, the first sealing seat 50 has a first installation groove 51, and the opening of the first installation groove 51 faces away from the valve seat 16 (also can be away from the slider unit 23), the second sealing seat 60 is arranged in the first installation groove 51;
  • the reversible solenoid valve 100 includes a first sealing ring 70 and a second sealing ring 80, the first sealing ring 70 is arranged in the first sealing seat 50, the second sealing ring 80 is arranged in the second sealing seat 60, wherein the connecting rod 22 Pass through the first sealing ring 70 and the second sealing ring 80 .
  • the middle end cover 30 of the reversible electromagnetic valve in the first embodiment may include the first sealing seat 50 and the second sealing seat 60 in the third embodiment.
  • the following descriptions related to the first sealing seat 50 and the second sealing seat 60 are all Applicable to Embodiment 1.
  • the first sealing seat 50 also has a first through hole 52 and a first sealing groove 53, the first through hole 52, the first sealing groove 53 and the first installation groove 51 are sequentially connected, and the first through hole 52, the first The diameters of the sealing groove 53 and the first mounting groove 51 increase sequentially, and the first sealing ring 70 is arranged in the first sealing groove 53;
  • the second sealing seat 60 has a second through hole 61, and the inner wall of the second through hole 61 has a first The second sealing groove 611 , the diameter of the second through hole 61 is smaller than the diameter of the first sealing groove 53 , and the second sealing ring 80 is disposed in the second sealing groove 611 .
  • the first through hole 52, the first sealing groove 53 and the first installation groove 51 are sequentially connected to facilitate the passage of the connecting rod 22; the first sealing groove 53 is provided to facilitate the placement of the first sealing ring 70; the second through hole 61 is provided, And the diameter of the second through hole 61 is smaller than the diameter of the first sealing groove 53, which can not only ensure the smooth passage of the connecting rod 22, but also play a position-limiting role on the first sealing ring 70, preventing the first sealing ring 70 from entering into the In the second through hole 61 ; a second sealing groove 611 is provided for placing the second sealing ring 80 .
  • the axial dimension of the first sealing groove 53 is larger than the axial dimension of the first sealing ring 70, the diameters of the first through hole 52 and the second through hole 61 are equal, and the diameters of the first sealing ring 70 and the second sealing ring 80 are Same size.
  • the first sealing ring 70 can move in the first sealing groove 53, because the first sealing seat 50 faces the valve seat
  • the pressure at one end of 16 is greater than the pressure at the other end, therefore, a thrust away from the end of the valve seat 16 will be generated, thereby pushing the first sealing ring 70 to move toward the second sealing seat 60, which not only ensures the sealing performance, but also reduces the The thrust acting surface of the second sealing seat 60 prevents the second sealing seat 60 from detaching from the first sealing seat 50 under a large thrust, thereby improving the stability of the second sealing seat 60 during operation.
  • the opening periphery of the first installation groove 51 has an annular flange 511, and the second sealing seat 60 is pressed into the first installation groove 51 from the opening of the first installation groove 51.
  • the annular flange 511 and the second Two sealing seats are riveted.
  • the depth of the first installation groove 51 is L1; the outer wall of the second sealing seat 60 is cylindrical, and the axial length of the second sealing seat 60 is L2 , L1 and L2 satisfy the following relationship: L1>L2, and the end face of the annular flange 511 and the second sealing seat 60 is riveted.
  • Limiting the depth L1 of the first mounting groove 51 and the axial length L2 of the second sealing seat 60 within the above ranges can ensure smooth riveting of the annular flange 511 and the end surface of the second sealing seat 60 .
  • the inner wall of the first mounting groove 51 and the outer wall of the second sealing seat 60 can be screwed together for easy installation and disassembly.
  • the inner wall of the first mounting groove 51 and the outer wall of the second sealing seat 60 can also be welded by laser. By adopting laser welding, the stability and reliability of the connection between the inner wall of the first installation groove 51 and the outer wall of the second sealing seat 60 are improved.
  • the third sealing groove 512 is arranged around the first sealing ring 70 , and the reversible solenoid valve 100 also includes a third sealing ring 90 ,
  • the third sealing ring 90 is disposed in the third sealing groove 512 , and the third sealing ring 90 abuts against the end surface of the second sealing seat 60 .
  • the sealing effect between the seats 60 can reduce the thrust of the second sealing seat 60 due to high pressure, thereby improving the stability of the second sealing seat 60 when working, and at the same time, preventing the first sealing ring 70 from , affecting the sealing effect between the first sealing seat 50 and the second sealing seat 60 .
  • the outer wall of the first sealing seat 50 has a welding groove 54 , and the outer wall of the first sealing seat 50 is welded to the inner wall of the valve body 10 . Welding with the inner wall of the valve body 10 is facilitated by providing a welding groove 54 on the outer wall of the first sealing seat 50 .
  • the present application also provides an air conditioning unit 200 , including the above-mentioned reversible solenoid valve 100 .

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Fluid Mechanics (AREA)
  • Magnetically Actuated Valves (AREA)
  • Multiple-Way Valves (AREA)
  • Sliding Valves (AREA)
  • Fluid-Driven Valves (AREA)

Abstract

一种可逆电磁阀(100)及具有其的空调机组(200)。该可逆电磁阀(100)包括阀体(10)及阀芯组件(20)，阀体(10)的两侧分别开设有第一连通口(11)及第二连通口(12)，阀体(10)具有阀腔(13)，阀芯组件(20)能够在阀腔(13)内滑移；阀芯组件(20)包括连杆(22)及分别连接于连杆(22)的两端的滑块单元(23)及活塞单元(21)，滑块单元(23)靠近相对设置的第一连通口(11)及第二连通口(12)，能够同时封堵第一连通口(11)及第二连通口(12)，活塞单元(21)的两侧能够形成压力差，以推动活塞单元(21)在阀腔(13)内滑移。

Description

可逆电磁阀及具有其的空调机组
相关申请
本申请要求2021年5月20日申请的，申请号为202121097730.X，发明名称为“可逆电磁阀及具有其的空调机组”以及2021年12月7日申请的，申请号为202111489240.9，发明名称为“可逆电磁阀”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请涉及制冷技术领域，特别是涉及一种可逆电磁阀及具有其的空调机组。
背景技术
可逆电磁阀通常安装于空调机组中，用于实现介质的双向流通。
相关的可逆电磁阀的阀芯组件包括连杆、滑块及两个活塞单元，两个活塞单元分别连接于连杆的两端，在介质推动阀芯组件运动的过程中，需要推动两个活塞单元滑移，而活塞单元在阀腔中是密封滑移的，具有较大的摩擦力，而介质需要推动两个活塞单元滑移，则需要更大的推力，从而使得可逆电磁阀需要较大的开阀压差。
发明内容
根据本申请的各种实施例，提供一种可逆电磁阀。
一种可逆电磁阀，包括阀体及阀芯组件，所述阀体的两侧分别开设有第一连通口及第二连通口，所述阀体具有阀腔，所述阀芯组件设于所述阀腔内，所述阀芯组件能够在所述阀腔内滑移以使所述第一连通口及所述第二连通口连通或隔断；所述阀芯组件包括活塞单元、连杆及滑块单元，所述滑块单元及所述活塞单元分别连接于所述连杆的两端，所述滑块单元靠近所述第一连通口及所述第二连通口设置，所述第一连通口及所述第二连通口相对设置，且所述滑块单元能够同时封堵所述第一连通口及所述第二连通口，所述活塞单元的两侧能够形成压力差，以推动所述活塞单元在所述阀腔内滑移。
在其中一个实施方式中，所述可逆电磁阀包括中间端盖及第二端盖，所述中间端盖固定于所述阀腔内，所述活塞单元设于所述中间端盖远离所述第一连通口及所述第二连通口的一侧，所述中间端盖与所述活塞单元形成第一腔，所述活塞单元与所述第二端盖形成第 二腔。
在其中一个实施方式中，所述可逆电磁阀还包括先导阀，所述先导阀设于所述阀体上；所述阀体上开设有第一孔及第二孔，所述第一孔与所述第一腔连通，所述第二孔与所述第二腔连通，所述先导阀通过毛细管分别与所述第一孔及所述第二孔连通，通过所述先导阀控制所述第一腔及所述第二腔之间的压力差。
在其中一个实施方式中，所述可逆电磁阀还包括第一端盖，所述第一端盖设于所述阀体远离所述第二端盖的一端，所述第一端盖与所述中间端盖形成介质腔，所述滑块单元设于所述介质腔内；当所述可逆电磁阀处于第一位置时，所述第一连通口与所述第二连通口分别与所述介质腔流通。
在其中一个实施方式中，所述活塞单元朝向所述中间端盖的侧面设有第一凸起，在所述活塞单元朝向靠近所述第一连通口及所述第二连通口的方向运动时，所述第一凸起能够与所述中间端盖抵接；及/或，所述活塞单元朝向所述第二端盖的侧面设有第二凸起，在所述活塞单元朝向靠近所述第二端盖的方向运动时，所述第二凸起能够与所述第二端盖抵接。
在其中一个实施方式中，所述活塞单元朝向所述中间端盖的侧面设有第一凸起，所述第一凸起呈环形，所述第一凸起的侧面开设有第一节流孔，介质能够通过所述第一节流孔流出所述第一凸起形成的凹槽；及/或，所述活塞单元朝向第二端盖的侧面设有第二凸起，所述第二凸起呈环形，所述第二凸起的侧面开设有第二节流孔，介质能够通过所述第二节流孔流出所述第二凸起形成的凹槽。
在其中一个实施方式中，所述活塞单元朝向所述中间端盖的侧面设有第一凸起，所述第一凸起呈环形，所述第一凸起朝向所述中间端盖的端面开设有第一节流槽，介质能够通过所述第一节流槽流出所述第一凸起形成的凹槽；及/或，所述活塞单元朝向所述第二端盖的侧面设有第二凸起，所述第二凸起呈环形，所述第二凸起朝向所述第二端盖的端面开设有第二节流槽，介质能够通过所述第二节流槽流出所述第二凸起形成的凹槽。
在其中一个实施方式中，所述滑块单元包括相对设置的第一部及第二部，所述第一部能够封堵所述第一连通口，所述第二部能够封堵所述第二连通口，所述第一部与所述第二部之间具有容置腔，所述容置腔内设有弹性件，所述弹性件的两端分别抵接于所述第一部及所述第二部。
在其中一个实施方式中，所述阀腔包括介质腔，所述滑块单元设于所述介质腔内，所述第一部及/或所述第二部上开设有平衡孔，所述介质腔通过所述平衡孔与所述容置腔连通。
在其中一个实施方式中，所述滑块单元还包括导向架，所述导向架套设于所述第一部及所述第二部的外侧并与所述连杆连接。
本申请还提供一种空调机组，包括上述的可逆电磁阀。
本申请的一个或多个实施例的细节在下面的附图和描述中提出。本申请的其它特征、目的和优点将从说明书、附图以及权利要求书变得明显。
附图说明
为了更好地描述和说明这里公开的那些申请的实施例和/或示例，可以参考一幅或多幅附图。用于描述附图的附加细节或示例不应当被认为是对所公开的申请、目前描述的实施例和/或示例以及目前理解的这些申请的最佳模式中的任何一者的范围的限制。
图1为相关可逆电磁阀的截面示意图。
图2为根据一些实施例的可逆电磁阀的整体结构图。
图3为根据一些实施例的可逆电磁阀的截面示意图。
图4为根据一些实施例的节流孔的示意图。
图5为根据一些实施例的可逆电磁阀的截面示意图。
图6为根据一些实施例的节流槽的示意图。
图7为根据一些实施例的可逆电磁阀的截面示意图。
图8为根据一些实施例的可逆电磁阀的截面示意图。
图9为图8中的可逆电磁阀的局部放大示意图。
图10为根据一些实施例的可逆电磁阀中第一密封座的截面示意图。
图11为根据一些实施例的可逆电磁阀中第二密封座的截面示意图。
图12为根据一些实施例的可逆电磁阀的中间端盖的截面示意图。
图13为根据一些实施例的空调机组与可逆电磁阀的关系示意图。
图中各符号表示含义如下：
100、可逆电磁阀；110、先导阀；200、空调机组；10、阀体；11、第一连通口；111、第一连接管；12、第二连通口；121、第二连接管；13、阀腔；131、第一腔；132、第二腔；133、介质腔；14、第一孔；141、第一毛细管；15、第二孔；151、第二毛细管；16、阀座；20、阀芯组件；21、活塞单元；211、第一凸起；2111、第一节流孔；2112、第一节流槽；212、第二凸起；2121、第二节流孔；2122、第二节流槽；213、第一活塞碗；214、第二活塞碗；215、中间挡板；216、第一挡板；217、第二挡板；22、连杆；23、滑块单元；231、第一部；2311、平衡孔；232、第二部；233、容置腔；234、弹性件；235、导向架；30、中间端盖；31、通孔；311、安装槽；312、密封圈；32、第一端盖；33、第二端盖；40、套管；50、第一密封座；51、第一安装槽；511、环形翻边；512、第三密封槽；52、第一 通孔；53、第一密封槽；54、焊槽；60、第二密封座；61、第二通孔；611、第二密封槽；70、第一密封圈；80、第二密封圈；90、第三密封圈；101、相关的可逆电磁阀；1011、相关的阀芯组件；1012、相关的连杆；1013、相关的活塞单元；1014、相关的滑块；1015、相关的阀腔。
具体实施方式
下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本申请一部分实施例，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，都属于本申请保护的范围。
需要说明的是，当组件被称为“装设于”另一个组件，它可以直接在另一个组件上或者也可以存在居中的组件。当一个组件被认为是“设置于”另一个组件，它可以是直接设置在另一个组件上或者可能同时存在居中组件。当一个组件被认为是“固定于”另一个组件，它可以是直接固定在另一个组件上或者可能同时存在居中组件。
除非另有定义，本文所使用的所有的技术和科学术语与属于本申请的技术领域的技术人员通常理解的含义相同。本文中在本申请的说明书中所使用的术语只是为了描述具体的实施例的目的，不是旨在于限制本申请。本文所使用的术语“或/及”包括一个或多个相关的所列项目的任意的和所有的组合。
请参阅图13，本申请提供的可逆电磁阀100，安装于空调机组200中，用于控制管路的连通或隔断，从而实现介质的双向流通。
本申请的可逆电磁阀100能够用于需要双向工作的空调机组200，例如，能够安装于需要同时具备制冷模式及制热模式两种功能的空调机组200中，实现介质的双向流动，而无需切换管路。需要解释的是，本申请中的介质指的是制冷剂。
请参阅图1，相关的可逆电磁阀101的相关的阀芯组件1011包括相关的连杆1012、相关的滑块1014及两个相关的活塞单元1013，两个相关的活塞单元1013分别连接于相关的连杆1012的两端，在介质推动相关的阀芯组件1011运动的过程中，需要推动两个相关的活塞单元1013滑移，而相关的活塞单元1013在相关的阀腔1015中是密封滑移的，具有较大的摩擦力，而介质需要推动两个相关的活塞单元1013滑移，则需要更大的推力，从而使得相关的可逆电磁阀101需要较大的开阀压差。
实施例一
请参阅图3，本申请提供的可逆电磁阀100包括阀体10及阀芯组件20，阀体10的两 侧分别开设有第一连通口11及第二连通口12，阀体10具有阀腔13，阀芯组件20设于阀腔13内，阀芯组件20能够在阀腔13内滑移以使第一连通口11及第二连通口12连通或隔断。
进一步地，第一连通口11内设有第一连接管111，第二连通口12内设有第二连接管121，第一连接管111和第二连接管121分别与空调机组的管路连接。
可逆电磁阀100还包括阀座16，阀座16安装于阀腔13内，第一连通口11及第二连通口12贯穿阀体10及阀座16，阀芯组件20的一端能够在阀座16内运动，以连通或隔断第一连通口11及第二连通口12。
请继续参阅图3，阀芯组件20包括活塞单元21、连杆22及滑块单元23，滑块单元23及活塞单元21分别连接于连杆22的两端，滑块单元23靠近第一连通口11及第二连通口12设置，活塞单元21的两侧能够形成压力差，以推动活塞单元21在阀腔13内滑移。
本申请通过设置单个活塞单元21来带动滑块单元23在阀腔13内运动，以连通或隔断第一连通口11与第二连通口12，能够减小推动活塞单元21所需的推力，从而降低可逆电磁阀100开阀时所需的开阀压差，提升可逆电磁阀100在低压时进行开阀、关阀的可靠性；同时，相对于相关可逆电磁阀101设置有两个活塞单元1013，本申请中设置单个活塞单元21减少了部件的数量，从而缩小可逆电磁阀100整体的体积，使可逆电磁阀100小型化，节省材料，降低加工成本。
第一连通口11及第二连通口12相对设置，滑块单元23能够同时封堵第一连通口11及第二连通口12。当可逆电磁阀100处于关闭状态时，当第一连通口11为进口时，第一连通口11被滑块单元23封堵，无法连通，当第二连通口12为进口时，第二连通口12被滑块单元23封堵，无法连通，使得可逆电磁阀100有效地工作。
本申请中可逆电磁阀100的第一连通口11可为进口，在空调机组200的模式切换后，第二连通口12可为进口，在可逆电磁阀100关闭的时候，滑块单元23能够同时封堵第一连通口11及第二连通口12，防止介质将滑块单元23冲开而影响密封性。
进一步地，可逆电磁阀100包括中间端盖30及第二端盖33，中间端盖30固定于阀腔13内，活塞单元21设于中间端盖30远离第一连通口11及第二连通口12的一侧，中间端盖30与活塞单元21形成第一腔131，活塞单元21与第二端盖33形成第二腔132；第一腔131与第二腔132分别位于活塞单元21的两侧，当第一腔131与第二腔132形成有压力差时，能够推动活塞单元21运动，以带动滑块单元23连通或隔断第一连通口11与第二连通口12。
进一步地，中间端盖30开设有通孔31，通孔31内壁开设有安装槽311，安装槽311 用于安装密封圈312；连杆22伸入通孔31内，且连杆22一部分朝向靠近第一连通口11及第二连通口12的方向延伸，另一部分朝向靠近第二端盖33的方向延伸，连杆22能够在通孔31内运动，且连杆22与中间端盖30之间通过密封圈312相互密封。
可逆电磁阀100还包括第一端盖32，第一端盖32设于阀体10远离第二端盖33的一端，第一端盖32与中间端盖30形成介质腔133，滑块单元23设于介质腔133内；当可逆电磁阀100处于第一位置时，第一连通口11与第二连通口12分别与介质腔133流通。需要说明的是，第一位置指可逆电磁阀100处于开启状态下的各部件运行时的位置。介质腔133便于介质的流通，当阀芯组件20朝远离第一连通口11与第二连通口12的方向滑移时，第一连通口11与第二连通口12能够经介质腔133进行连通，使介质实现双向流通。
请参阅图2、图3，具体地，第一连通口11及第二连通口12分别位于介质腔133内，阀体10上开设有第一孔14及第二孔15，第一孔14与第一腔131连通，第二孔15与第二腔132连通，且第一孔14内设有第一毛细管141，第二孔15内设有第二毛细管151，第一毛细管141与第二毛细管151连接于下述的先导阀110，以使第一腔131与第二腔132形成压力差，推动活塞单元21运动。
当需要关闭可逆电磁阀100时，高压制冷剂从第二毛细管151进入第二腔132内，第一腔131内的制冷剂从第一毛细管141流出，从而推动活塞单元21朝向靠近第一连通口11及第二连通口12的方向运动；当需要开启可逆电磁阀100时，高压制冷剂从第一毛细管141进入第一腔131内，第二腔132内的制冷剂从第二毛细管151流出，从而推动活塞单元21朝向远离第一连通口11及第二连通口12的方向运动。
请继续参阅图3，活塞单元21朝向中间端盖30的侧面设有第一凸起211，在活塞单元21朝向靠近第一连通口11及第二连通口12的方向运动时，第一凸起211能够与中间端盖30抵接，从而减少活塞单元21对中间端盖30的冲击力；
请参阅图4，进一步地，第一凸起211呈环形，第一凸起211的侧面开设有第一节流孔2111。当活塞单元21被推动朝向第一连通口11及第二连通口12的方向运动时，部分介质能够经第一节流孔2111缓慢流出第一凸起211形成的凹槽，以形成阻力，减缓活塞单元21对于中间端盖30的冲击力，从而加强中间端盖30安装的牢固性，并且能够减少噪音。
请参阅图5、图6，在另一实施例中，第一凸起211朝向中间端盖30的端面开设有第一节流槽2112。当活塞单元21被推动朝向第一连通口11及第二连通口12的方向运动时，部分介质能够经第一节流槽2112缓慢流出第一凸起211形成的凹槽，以形成阻力，减缓活塞单元21对于中间端盖30的冲击力，从而加强中间端盖30安装的牢固性，并且能够减 少噪音。
请参阅图3，在另一实施例中，活塞单元21朝向第二端盖33的侧面设有第二凸起212，在活塞单元21朝向靠近第二端盖33的方向运动时，第二凸起212能够与第二端盖33抵接，从而减少活塞单元21对第二端盖33的冲击力。
进一步地，第二凸起212呈环形，第二凸起212的侧面开设有第二节流孔2121。当活塞单元21被推动朝向靠近第二端盖33的方向运动时，部分介质能够经第二节流孔2121缓慢流出第二凸起212形成的凹槽，以形成阻力，减缓活塞单元21对于第二端盖33的冲击力，并且能够减少噪音。
请参阅图5，在另一实施例中，第二凸起212朝向第二端盖33的端面开设有第二节流槽2122。当活塞单元21被推动朝向靠近第二端盖33的方向运动时，部分介质能够经第二节流槽2122缓慢流出第二凸起212形成的凹槽，以形成阻力，减缓活塞单元21对于第二端盖33的冲击力，并且能够减少噪音。
具体地，活塞单元21包括第一活塞碗213、第二活塞碗214、中间挡板215、第一挡板216以及第二挡板217，第一挡板216、中间挡板215以及第二挡板217相互连接，且第一挡板216及第二挡板217位于中间挡板215的两侧，第一挡板216靠近中间端盖30设置；第一活塞碗213位于第一挡板216与中间挡板215之间，第二活塞碗214位于中间挡板215与第二挡板217之间；其中，第一凸起211设置于第一挡板216上，第二凸起212设置于第二挡板217上。
请继续参阅图3，滑块单元23设于介质腔133内，滑块单元23包括相对设置的第一部231及第二部232，第一部231能够封堵第一连通口11，第二部232能够封堵第二连通口12，第一部231与第二部232之间具有容置腔233，容置腔233内设有弹性件234，弹性件234的两端分别抵接于第一部231及第二部232；弹性件234与第一部231及第二部232之间产生的相互作用力，能够将第一部231与第二部232撑开，便于第一部231对第一连通口11的封堵及第二部232对第二连通口12的封堵，提高封堵时的密封性。
进一步地，第一部231及/或第二部232上开设有平衡孔2311，介质腔133通过平衡孔2311与容置腔233连通，平衡孔2311能够平衡介质腔133与容置腔233之间的压力，防止介质对滑块单元23形成挤压，从而保证滑块单元23的稳固性。
请继续参阅图3，滑块单元23还包括导向架235，导向架235套设于第一部231及第二部232的外侧并与连杆22连接；导向架235对于滑块单元23起到限位及导正作用，防止滑块单元23在介质的作用下发生倾斜，影响其与第一连通口11及第二连通口12的密封性；同时，第一部231及第二部232安装于导向架235，连杆22通过导向架235带动第 一部231及第二部232进行滑移，能够减少维护成本，提高利用效率，当导向架235出现磨损或连杆22损坏时，只需要更换损失的零件，便于进行更换维护且能够降低成本。
可逆电磁阀100的先导阀110设于阀体10上，并分别与第一毛细管141及第二毛细管151连接，通过先导阀110的换向，能够控制活塞单元21两侧的压力差，从而推动活塞单元21运动。
本申请提供的可逆电磁阀100的具体工作原理为：
当需要开启可逆电磁阀100时，通过先导阀110换向，将高压制冷剂从第一毛细管141通入第一腔131内，第二腔132内的制冷剂从第二毛细管151流出，从而推动活塞单元21朝向远离第一连通口11及第二连通口12的方向运动，活塞单元21通过连杆22及导向架235带动滑块单元23运动，以解除对第一连通口11及第二连通口12的封堵。
当需要关闭可逆电磁阀100时，通过先导阀110换向，将高压制冷剂从第二毛细管151通入第二腔132内，第一腔131内的制冷剂从第一毛细管141流出，从而推动活塞单元21朝向靠近第一连通口11及第二连通口12的方向运动，活塞单元21通过连杆22及导向架235带动滑块单元23运动，使封堵第一连通口11及第二连通口12。
本申请通过实验验证了采用单个活塞单元21驱动，最低动作压差几乎是相关采用双活塞单元1013的一半，本申请提供的可逆电磁阀100大大提高了其在低压下动作的可靠性。本实验在大气环境中进行测试。
设：滑块单元23与阀座16之间的摩擦力为F1，密封圈312与阀芯组件20之间的摩擦力为F2，活塞单元21与阀体10内壁之间的摩擦力为F3，介质腔133内介质与阀芯组件20之间的作用力为F4，关阀所需作用力为F5，开阀所需作用力为F6；
其中，因阀座16开设有第一连通口11及第二连通口12，且第一连通口11及第二连通口12均与空气相接触，故F1与F4趋近于0；关阀所需作用力F5为第二腔132内的介质压强与第二腔132内的介质与活塞单元21的接触面积的乘积，这里的活塞单元21与第二腔132内介质的接触面积为活塞单元21朝向第二腔132的侧面的面积；开阀所需作用力F6为第一腔131内的介质压强与第一腔131内的介质与活塞单元21的接触面积的乘积，需要解释的是，这里的活塞单元21与第一腔131内的介质的接触面积为活塞单元21朝向第一腔131的侧面的面积减去连杆22垂直于轴线方向的截面积。
具体地，当可逆电磁阀100关闭时：F5>F1+F2+F3+F4，按照上述阐述，此时F4为0，F1为0，F5>F2+F3；
当可逆电磁阀100开启时：F4+F6>F1+F2+F3+F5，按照上述阐述，此时，F4为0，F1为0，F5为0，F6>F2+F3。
开阀压差主要由阻力引起，本申请提供的可逆电磁阀100在开阀过程中的阻力主要是F2及F3，其中，F2<F3，且经实验得出：相关采用双活塞单元1013的最小开阀压差在0.11MPa左右，本申请提供的可逆电磁阀100采用单活塞单元21最小开阀压差在0.06MPa左右，最小开阀压差几乎是采用双活塞单元1013时的一半，可知，本申请提供的可逆电磁阀100采用单个活塞单元21与相关的双活塞单元1013相比阻力更小，所需最小开阀压差更小，并且，使阀芯组件20的轴向长度更短、体积更小，从而能够减小安装时所需占用的空间体积，节省材料并降低成本。
实施例二
请参阅图7，实施例二的结构与实施例一的结构、工作原理以及开阀压差验证原理基本相同，相同之处不再赘述，不同之处在于实施例二中阀体10的设置方式。
在本实施例中，阀体10为分体设置。
本实施例中的阀体10包括阀座16和套管40，中间端盖30设于阀座16和套管40之间，且中间端盖30分别与阀体10及套管40固定连接。
第一端盖32设于阀座16远离套管40的一端，或者，不另外设置第一端盖32，阀座16和第一端盖32一体式设置。连杆22贯穿中间端盖30，滑块单元23位于阀座16内，并能够在阀座16内滑移，活塞单元21位于套管40内，且与套管40内壁相抵接，活塞单元21在两侧压力差的作用下，能够带动滑块单元23连通或隔断第一连通口11及第二连通口12。
实施例三
请参阅图8、图9，可逆电磁阀包括：阀体10、阀座16、滑块单元23和连杆22，阀座16设置在阀体10内，阀座16具有阀口，滑块单元23可滑动地设置在阀座16内，以关闭或打开阀口，连杆22和滑块单元23驱动连接；
可逆电磁阀包括第一密封座50和第二密封座60，第一密封座50设置在阀体10内，第一密封座50具有第一安装槽51，第一安装槽51的开口背离阀座16(也可以背离滑块单元23)，第二密封座60设置在第一安装槽51内；
可逆电磁阀100包括第一密封圈70和第二密封圈80，第一密封圈70设置在第一密封座50内，第二密封圈80设置在第二密封座60内，其中，连杆22穿过第一密封圈70和第二密封圈80。
采用该方案，通过设置第一密封座50和第二密封座60，并将第二密封座60设置在第一安装槽51内，如此设置，在装配时，首先将第一密封圈70装入第一密封座50内，随后将第二密封圈80放入在第二密封座60内，最后将带有第二密封圈80的第二密封座60一 同装入第一安装槽51内，采用上述装配方式，能够更加简便、快捷地将第一密封圈70和第二密封圈80分别装配到第一密封座50、第二密封座60内，有效解决了难以将密封圈装配到密封座中的问题。
实施例一中的可逆电磁阀的中间端盖30可包括实施例三中的第一密封座50和第二密封座60，下述与第一密封座50和第二密封座60相关的描述均可适用于实施例一。
其中，第一密封座50还具有第一通孔52和第一密封槽53，第一通孔52、第一密封槽53和第一安装槽51依次连通，且第一通孔52、第一密封槽53和第一安装槽51的直径依次增大，第一密封圈70设置在第一密封槽53内；第二密封座60具有第二通孔61，第二通孔61的内壁具有第二密封槽611，第二通孔61的直径小于第一密封槽53的直径，第二密封圈80设置在第二密封槽611内。将第一通孔52、第一密封槽53和第一安装槽51依次连通，便于连杆22穿过；设置第一密封槽53，便于放置第一密封圈70；设置第二通孔61，且第二通孔61的直径小于第一密封槽53的直径，这样既能够保证连杆22顺利穿过，又可以对第一密封圈70起到限位作用，防止第一密封圈70进入到第二通孔61中；设置第二密封槽611，用于放置第二密封圈80。
进一步地，第一密封槽53的轴向尺寸大于第一密封圈70的轴向尺寸，第一通孔52和第二通孔61的直径相等，第一密封圈70和第二密封圈80的尺寸相同。通过将第一密封槽53的轴向尺寸设置成大于第一密封圈70的轴向尺寸，这样第一密封圈70能够在第一密封槽53内进行移动，由于第一密封座50朝向阀座16一端的压力大于另一端的压力，因此，会产生一个背离阀座16一端的推力，从而能够推动第一密封圈70朝向第二密封座60移动，这样既保证了密封性，又能够减小第二密封座60受到推力的作用面，防止第二密封座60受到较大的推力脱离第一密封座50，进而提高了第二密封座60工作时的稳定性。
具体的，请参阅图10，第一安装槽51的开口周缘具有环形翻边511，第二密封座60从第一安装槽51的开口压入第一安装槽51内，环形翻边511和第二密封座铆接。通过在第一安装槽51的开口周缘设置环形翻边511，如此便于和第二密封座60进行铆接，采用铆接的连接方式，使得连接更加稳定、可靠。其中，环形翻边511属于第一密封座50的一部分。
其中，请参阅图10和图11，环形翻边511在铆接之前，第一安装槽51的深度为L1；第二密封座60的外壁为圆柱状，第二密封座60的轴向长度为L2，L1和L2满足以下关系式：L1＞L2，环形翻边511和第二密封座60的端面铆接。将第一安装槽51的深度L1和 第二密封座60的轴向长度L2的大小限定在上述范围内，能够保证环形翻边511和第二密封座60的端面顺利完成铆接。
第一安装槽51的内壁和第二密封座60的外壁可采用螺纹连接，便于安装和拆卸。第一安装槽51的内壁和第二密封座60的外壁也可采用激光焊接。通过采用激光焊接，提高了第一安装槽51的内壁和第二密封座60的外壁之间连接的稳定性、可靠性。
进一步地，如图12所示，第一安装槽51的底壁上具有第三密封槽512，第三密封槽512围绕第一密封圈70设置，可逆电磁阀100还包括第三密封圈90，第三密封圈90设置在第三密封槽512内，第三密封圈90和第二密封座60的端面抵接。通过在第一安装槽51的底壁上设置第三密封槽512，并且将第三密封圈90和第二密封座60的端面抵接，如此设置，提高了第一密封座50和第二密封座60之间的密封效果，并且能够减小第二密封座60因高压作用而受到的推力，从而提高了第二密封座60工作时的稳定性，同时，防止当第一密封圈70失效后，影响第一密封座50和第二密封座60之间的密封效果。
进一步地，在上述实施例中，第一密封座50的外壁上具有焊槽54，第一密封座50的外壁和阀体10的内壁焊接。通过在第一密封座50的外壁上设置焊槽54，便于和阀体10的内壁进行焊接。
请参阅图13，本申请还提供一种空调机组200，包括上述的可逆电磁阀100。
以上所述实施例的各技术特征可以进行任意的组合，为使描述简洁，未对上述实施例中的各个技术特征所有可能的组合都进行描述，然而，只要这些技术特征的组合不存在矛盾，都应当认为是本说明书记载的范围。
以上所述实施例仅表达了本申请的几种实施方式，其描述较为具体和详细，但并不能因此而理解为对申请专利范围的限制。应当指出的是，对于本领域的普通技术人员来说，在不脱离本申请构思的前提下，还可以做出若干变形和改进，这些都属于本申请的保护范围。因此，本申请专利的保护范围应以所附权利要求为准。

Claims (23)

  1. 一种可逆电磁阀，包括阀体及阀芯组件，所述阀体的两侧分别开设有第一连通口及第二连通口，所述阀体具有阀腔，所述阀芯组件设于所述阀腔内，所述阀芯组件能够在所述阀腔内滑移以使所述第一连通口及所述第二连通口连通或隔断；
    所述阀芯组件包括活塞单元、连杆及滑块单元，所述滑块单元及所述活塞单元分别连接于所述连杆的两端，所述滑块单元靠近所述第一连通口及所述第二连通口设置，所述第一连通口及所述第二连通口相对设置，且所述滑块单元能够同时封堵所述第一连通口及所述第二连通口，所述活塞单元的两侧能够形成压力差，以推动所述活塞单元在所述阀腔内滑移。
  2. 根据权利要求1所述的可逆电磁阀，其中，所述可逆电磁阀包括中间端盖及第二端盖，所述中间端盖固定于所述阀腔内，所述活塞单元设于所述中间端盖远离所述第一连通口及所述第二连通口的一侧，所述中间端盖与所述活塞单元形成第一腔，所述活塞单元与所述第二端盖形成第二腔。
  3. 根据权利要求2所述的可逆电磁阀，其中，所述可逆电磁阀还包括先导阀，所述先导阀设于所述阀体上；所述阀体上开设有第一孔及第二孔，所述第一孔与所述第一腔连通，所述第二孔与所述第二腔连通，所述先导阀通过毛细管分别与所述第一孔及所述第二孔连通，通过所述先导阀控制所述第一腔及所述第二腔之间的压力差。
  4. 根据权利要求2所述的可逆电磁阀，其中，所述可逆电磁阀还包括第一端盖，所述第一端盖设于所述阀体远离所述第二端盖的一端，所述第一端盖与所述中间端盖形成介质腔，所述滑块单元设于所述介质腔内；当所述可逆电磁阀处于第一位置时，所述第一连通口与所述第二连通口分别与所述介质腔流通。
  5. 根据权利要求2所述的可逆电磁阀，其中，所述活塞单元朝向所述中间端盖的侧面设有第一凸起，在所述活塞单元朝向靠近所述第一连通口及所述第二连通口的方向运动时，所述第一凸起能够与所述中间端盖抵接；及/或，所述活塞单元朝向所述第二端盖的侧面设有第二凸起，在所述活塞单元朝向靠近所述第二端盖的方向运动时，所述第二凸起能够与所述第二端盖抵接。
  6. 根据权利要求2所述的可逆电磁阀，其中，所述活塞单元朝向所述中间端盖的侧面设有第一凸起，所述第一凸起呈环形，所述第一凸起的侧面开设有第一节流孔，介质能够通过所述第一节流孔流出所述第一凸起形成的凹槽；及/或，所述活塞单元朝向所述第二端盖的侧面设有第二凸起，所述第二凸起呈环形，所述第二凸起的侧面开设有第二节流孔， 介质能够通过所述第二节流孔流出所述第二凸起形成的凹槽。
  7. 根据权利要求2所述的可逆电磁阀，其中，所述活塞单元朝向所述中间端盖的侧面设有第一凸起，所述第一凸起呈环形，所述第一凸起朝向所述中间端盖的端面开设有第一节流槽，介质能够通过所述第一节流槽流出所述第一凸起形成的凹槽；及/或，所述活塞单元朝向所述第二端盖的侧面设有第二凸起，所述第二凸起呈环形，所述第二凸起朝向所述第二端盖的端面开设有第二节流槽，介质能够通过所述第二节流槽流出所述第二凸起形成的凹槽。
  8. 根据权利要求1所述的可逆电磁阀，其中，所述滑块单元包括相对设置的第一部及第二部，所述第一部能够封堵所述第一连通口，所述第二部能够封堵所述第二连通口，所述第一部与所述第二部之间具有容置腔，所述容置腔内设有弹性件，所述弹性件的两端分别抵接于所述第一部及所述第二部。
  9. 根据权利要求8所述的可逆电磁阀，其中，所述阀腔包括介质腔，所述滑块单元设于所述介质腔内，所述第一部及/或所述第二部上开设有平衡孔，所述介质腔通过所述平衡孔与所述容置腔连通。
  10. 根据权利要求8所述的可逆电磁阀，其中，所述滑块单元还包括导向架，所述导向架套设于所述第一部及所述第二部的外侧并与所述连杆连接。
  11. 根据权利要求2所述的可逆电磁阀，其中，所述中间端盖包括第一密封座和第二密封座，所述第一密封座设置在所述阀体内，所述第一密封座具有第一安装槽，所述安装槽的开口背离所述滑块单元，所述第二密封座设置在所述第一安装槽内；
    所述可逆电磁阀还包括第一密封圈和第二密封圈，所述第一密封圈设置在所述第一密封座内，所述第二密封圈设置在所述第二密封座内，其中，所述连杆穿过所述第一密封圈和所述第二密封圈。
  12. 根据权利要求11所述的可逆电磁阀，其中，所述第一密封座还具有第一通孔和第一密封槽，所述第一通孔、所述第一密封槽和所述第一安装槽依次连通，且所述第一通孔、所述第一密封槽和所述第一安装槽的直径依次增大，所述第一密封圈设置在所述第一密封槽内；
    所述第二密封座具有第二通孔，所述第二通孔的内壁具有第二密封槽，所述第二通孔的直径小于所述第一密封槽的直径，所述第二密封圈设置在所述第二密封槽内。
  13. 根据权利要求12所述的可逆电磁阀，其中，所述第一密封槽的轴向尺寸大于所述第一密封圈的轴向尺寸，所述第一通孔和所述第二通孔的直径相等，所述第一密封圈和所述第二密封圈的尺寸相同。
  14. 根据权利要求11所述的可逆电磁阀，其中，所述第一安装槽的内壁和所述第二密封座的外壁螺纹连接。
  15. 根据权利要求11所述的可逆电磁阀，其中，所述第一安装槽的底壁上具有第三密封槽，所述第三密封槽围绕所述第一密封圈设置，所述可逆电磁阀还包括第三密封圈，所述第三密封圈设置在所述第三密封槽内，所述第三密封圈和所述第二密封座的端面抵接。
  16. 根据权利要求11所述的可逆电磁阀，其中，所述第一密封座的外壁上具有焊槽。
  17. 一种可逆电磁阀，包括：
    阀体、阀座、滑块单元和连杆，所述阀座设置在所述阀体内，所述阀座具有阀口，所述滑块单元可滑动地设置在所述阀座内，以关闭或打开所述阀口，所述连杆和所述滑块单元驱动连接；
    第一密封座和第二密封座，所述第一密封座设置在所述阀体内，所述第一密封座具有第一安装槽，所述第一安装槽的开口背离所述阀座，所述第二密封座设置在所述第一安装槽内；
    第一密封圈和第二密封圈，所述第一密封圈设置在所述第一密封座内，所述第二密封圈设置在所述第二密封座内，其中，所述连杆穿过所述第一密封圈和所述第二密封圈。
  18. 根据权利要求17所述的可逆电磁阀，所述第一密封座还具有第一通孔和第一密封槽，所述第一通孔、所述第一密封槽和所述第一安装槽依次连通，且所述第一通孔、所述第一密封槽和所述第一安装槽的直径依次增大，所述第一密封圈设置在所述第一密封槽内；
    所述第二密封座具有第二通孔，所述第二通孔的内壁具有第二密封槽，所述第二通孔的直径小于所述第一密封槽的直径，所述第二密封圈设置在所述第二密封槽内。
  19. 根据权利要求18所述的可逆电磁阀，其特征在于，所述第一密封槽的轴向尺寸大于所述第一密封圈的轴向尺寸，所述第一通孔和所述第二通孔的直径相等，所述第一密封圈和所述第二密封圈的尺寸相同。
  20. 根据权利要求17所述的可逆电磁阀，其特征在于，所述第一安装槽的内壁和所述第二密封座的外壁螺纹连接。
  21. 根据权利要求17所述的可逆电磁阀，其特征在于，所述第一安装槽的底壁上具有第三密封槽，所述第二密封槽围绕所述第一密封圈设置，所述可逆电磁阀还包括第三密封圈，所述第三密封圈设置在所述第三密封槽内，所述第三密封圈和所述第二密封座的端面抵接。
  22. 根据权利要求17所述的可逆电磁阀，其特征在于，所述第一密封座的外壁上具有焊槽。
  23. 一种空调机组，包括如权利要求1-22任意一项所述的可逆电磁阀。
PCT/CN2022/094038 2021-05-20 2022-05-20 可逆电磁阀及具有其的空调机组 Ceased WO2022242736A1 (zh)

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EP4328470A1 (en) 2024-02-28
US12385569B2 (en) 2025-08-12
WO2022242736A8 (zh) 2023-11-09

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