WO2025124580A1 - 阀座、流量控制装置及热管理系统 - Google Patents

阀座、流量控制装置及热管理系统 Download PDF

Info

Publication number
WO2025124580A1
WO2025124580A1 PCT/CN2024/139387 CN2024139387W WO2025124580A1 WO 2025124580 A1 WO2025124580 A1 WO 2025124580A1 CN 2024139387 W CN2024139387 W CN 2024139387W WO 2025124580 A1 WO2025124580 A1 WO 2025124580A1
Authority
WO
WIPO (PCT)
Prior art keywords
section
valve
flow channel
port
way
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.)
Pending
Application number
PCT/CN2024/139387
Other languages
English (en)
French (fr)
Inventor
钟时澍
王傅钢
金钜
祝培军
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
Application filed by Zhejiang Dunan Artificial Environment Co Ltd filed Critical Zhejiang Dunan Artificial Environment Co Ltd
Publication of WO2025124580A1 publication Critical patent/WO2025124580A1/zh
Anticipated expiration legal-status Critical
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating devices
    • 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
    • F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
    • F16K11/10—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with two or more closure members not moving as a unit
    • 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
    • F16K15/00—Check valves
    • F16K15/18—Check valves with actuating mechanism; Combined check valves and actuated valves
    • 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
    • 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

  • the present application relates to the technical field of valve equipment, and in particular to a valve seat, a flow control device and a thermal management system.
  • the flow control device in the existing thermal management system (especially the vehicle-mounted thermal management system) includes an electronic expansion valve and a one-way valve arranged in the pipeline to control the refrigerant in the pipeline through the electronic expansion valve and the one-way valve; in order to simplify the structure, the existing electronic expansion valve and the one-way valve are usually integrated and installed on a valve seat, and the interior of the valve seat has an expansion valve cavity that cooperates with the electronic expansion valve and a one-way valve cavity that cooperates with the one-way valve.
  • the expansion valve cavity and the one-way valve cavity inside the existing valve seat can usually be connected, so that the electronic expansion valve and the one-way valve cannot be opened at the same time or work separately, that is, there is an intersection between the expansion valve cavity and the one-way valve cavity, resulting in only a single flow path being allowed to flow during operation, that is, when the electronic expansion valve is closed, the one-way valve is opened, and the fluid only flows through the one-way valve; when the one-way valve is closed, the electronic expansion valve is opened, and the fluid only flows through the electronic expansion valve.
  • the electronic expansion valve and the one-way valve integrated on one valve seat cannot allow two flow paths to flow simultaneously, that is, the electronic expansion valve and the one-way valve cannot be in the open mode at the same time; the flexibility of regulating the refrigerant flow is limited, and the regulating functions of the one-way valve and the electronic expansion valve cannot be exerted separately, which cannot meet the multi-mode and multi-condition usage requirements of the thermal management system.
  • the present application provides a valve seat, a flow control device and a thermal management system to solve the problem that the electronic expansion valve and the one-way valve in the prior art cannot work independently, and thus cannot meet the multi-mode and multi-working condition requirements of the thermal management system.
  • a valve seat which is used to install a one-way valve and an electronic expansion valve.
  • the valve seat has a first flow channel and a second flow channel inside.
  • the one-way valve is arranged in the first flow channel and cooperates with the inner wall of the first flow channel to allow the liquid in the first flow channel to flow in one direction;
  • the electronic expansion valve is arranged on the valve seat and cooperates with the second flow channel to control the opening and closing of the second flow channel; wherein the first flow channel and the second flow channel are independently arranged at intervals inside the valve seat.
  • the two ends of the second flow channel are respectively a first through port and a second through port, and the first through port and the second through port are respectively arranged on opposite sides of the periphery of the valve seat; when the electronic expansion valve is in an open valve state, the first through port is connected to the second through port; when the electronic expansion valve is in a closed valve state, the first through port is disconnected from the second through port.
  • the second flow channel includes a first passing section, an installation section and a second passing section which are connected in sequence, a part of the electronic expansion valve is arranged in the installation section and cooperates with the inner wall of the installation section; the first passing port is the opening of the first passing section, and the second passing port is the opening of the second passing section; wherein, the central axis of the first passing section is parallel to the central axis of the second passing section; the central axis of the first passing section and the central axis of the second passing section are respectively perpendicular to the central axis of the installation section; the electronic expansion valve controls the opening and closing of the second flow channel by lifting and lowering the internal valve needle, and the lifting direction of the valve needle is parallel to the central axis of the installation section.
  • the two ends of the first flow channel are a one-way inlet and a one-way outlet, respectively, and the one-way outlet and the one-way inlet are respectively arranged on opposite sides of the periphery of the valve seat, one of the one-way inlet and the one-way outlet is located on the same side of the periphery of the valve seat as the second through port, and the other is located on the same side of the periphery of the valve seat as the first through port; when the one-way valve is in an open state, the one-way outlet is connected to the one-way inlet, and liquid enters from the one-way inlet and flows out from the one-way outlet; when the one-way valve is in a closed state, the one-way outlet is disconnected from the one-way inlet.
  • the first flow channel includes an entrance section, an opening and closing section, and an outflow section which are connected in sequence, and the one-way valve can be movably arranged in the opening and closing section and cooperate with the inner wall limiter of the opening and closing section;
  • the one-way inlet is the entrance of the entrance section, and the one-way outlet is the outlet of the outflow section; wherein, the central axis of the entrance section, the central axis of the opening and closing section, and the central axis of the outflow section are collinear; the movement direction of the one-way valve is parallel to the central axis of the opening and closing section.
  • the second flow channel includes a first passing section, an installation section, and a second passing section which are connected in sequence, and a part of the electronic expansion valve is arranged in the installation section and cooperates with the inner wall of the installation section; the central axis of the first passing section and the central axis of the second passing section are respectively parallel to the central axis of the entrance section, the central axis of the opening and closing section, and the central axis of the outflow section.
  • a flow control device which is used in a thermal management system to control the flow of liquid;
  • the flow control device includes a one-way valve, an electronic expansion valve and the above-mentioned valve seat, the one-way valve is arranged in a first flow channel of the valve seat, and the electronic expansion valve cooperates with the second flow channel of the valve seat.
  • the first flow channel includes an entrance section, an opening and closing section, and an outflow section which are connected in sequence, and the connection between the opening and closing section and the entrance section is the first valve port;
  • the opening and closing section has an expanded diameter portion at one end close to the first valve port;
  • the one-way valve includes a guide member, a piston member, and a sealing member; one end of the guide member is fixedly arranged, and the other end is elastically limitedly matched with one end of the piston member; the other end of the piston member is arranged toward the first valve port;
  • the sealing member is installed on the other end of the piston member, and is used to abut and match with the inner wall of the expanded diameter portion; the piston member moves along the central axis of the opening and closing section under the guiding action of the guide member to drive the sealing member to open and close the first valve port.
  • the electronic expansion valve includes a valve needle, a drive screw and a transmission structure.
  • the drive screw is connected to the valve needle through the transmission structure.
  • the drive screw can rotate relative to the valve needle.
  • the drive screw drives the valve needle to move axially through axial movement to control the opening and closing of the electronic expansion valve.
  • the electronic expansion valve also includes a protective shell structure and a mounting seat structure, the protective shell structure has a protective cavity inside, and at least a portion of the drive screw and the transmission structure are located in the protective cavity; the protective shell structure is fixedly arranged on the mounting seat structure; wherein the second flow channel includes a first passing section, a mounting section and a second passing section which are connected in sequence, and at least a portion of the mounting seat structure is arranged in the mounting section.
  • the electronic expansion valve also includes a sealing body structure and a switch seat structure, wherein one end of the sealing body structure along the axial direction of the valve needle is arranged at an end of the mounting seat structure away from the protective shell structure, and the interior is connected to the protective cavity; the valve needle is movably arranged on the sealing body structure, and is limitedly matched with the inner wall of the sealing body structure; the switch seat structure is fixedly arranged on the other end of the sealing body structure along the axial direction of the valve needle, and a valve port flow channel is provided inside the switch seat structure, and the two ends of the valve port flow channel are respectively connected to the interior of the sealing body structure and the second passing section, wherein the sealing body structure and the switch seat structure are respectively arranged in the mounting section; the valve needle controls the connection and disconnection of the first passing section and the second passing section by opening and closing the valve port flow channel.
  • a part of the switch seat structure extends into the interior of the sealing body structure, and the part is the extension section, which is sealed with the inner wall of the sealing body structure;
  • the valve port flow channel runs through the extension section to communicate with the interior of the sealing body structure;
  • the opening of the valve port flow channel located in the extension section is a conical opening, and
  • the valve needle includes a conduction section, a first conical section and a second conical section connected in sequence along the axial direction of the valve needle, and the conduction section is connected to the transmission structure; wherein, when the valve needle closes the valve port flow channel, the outer periphery of the first conical section is sealed with the conical opening, and the second conical section extends into the valve port flow channel.
  • the electronic expansion valve also includes a first sealing ring structure, the outer periphery of which is sealed with the inner wall of the installation section; wherein the first sealing ring structure is located in a groove formed by the switch seat structure and the sealing body structure.
  • the electronic expansion valve also includes a second sealing ring structure
  • the mounting section has a mounting groove, and at least a portion of the second sealing ring is arranged in the mounting groove; the second sealing ring structure is respectively abutted against the mounting seat structure and the bottom wall of the mounting groove at both ends along the axial direction of the valve needle to seal the gap between the mounting groove and the mounting seat structure.
  • the electronic expansion valve also includes an electromagnetic coil structure, which is arranged outside the protective shell structure and is connected to an external power source for driving the driving screw to move axially.
  • a thermal management system includes the above-mentioned flow control device.
  • the present application provides a valve seat, which is used to install a one-way valve and an electronic expansion valve.
  • the valve seat has a first flow channel and a second flow channel inside.
  • the one-way valve is arranged in the first flow channel and cooperates with the inner wall of the first flow channel to allow the liquid in the first flow channel to flow in one direction;
  • the electronic expansion valve is arranged on the valve seat and cooperates with the second flow channel to control the opening and closing of the second flow channel; wherein the first flow channel and the second flow channel are independently arranged at intervals inside the valve seat.
  • the present application sets the first flow channel and the second flow channel independently at the internal interval of the valve seat, so that the flow channel controlled by the one-way valve and the flow channel controlled by the electronic expansion valve work independently without affecting each other and without intersection, thereby ensuring that the expansion valve and the one-way valve can work independently, and can play the regulating role of the one-way valve and the electronic expansion valve respectively, effectively meeting the multi-mode and multi-condition use requirements of the thermal management system;
  • the valve seat proposed in the present application is reliable in operation and simple in structure, easy to process and low in cost, and can flexibly adapt to different one-way valves and electronic expansion valves by flexibly setting the specific parameters of the first flow channel and the second flow channel, and is suitable for large-scale promotion and use;
  • the flow control device using the valve seat proposed in the present application has both throttling function and one-way straight-through function.
  • the throttling function and/or the straight-through function can be selected to take effect according to the use requirements of the thermal management system;
  • the flow control device using the valve seat proposed in the present application has a high degree of product integration and a compact structure, which is conducive to simplifying pipeline connections and reducing occupied space.
  • FIG1 is a schematic diagram showing the internal structure of a valve seat provided in an embodiment of the present application.
  • FIG2 is a schematic diagram showing a partial structure of a flow control device provided in an embodiment of the present application.
  • FIG3 shows a partial enlarged view of the location of the one-way valve in FIG2 ;
  • FIG. 4 is a partial enlarged view showing the location of the switch seat structure in FIG. 2 .
  • the above drawings include the following reference numerals: 10. One-way valve; 11. Guide member; 111. First limiting cavity; 12. Piston member; 121. Second limiting cavity; 13. Sealing member; 14. Elastic member; 20. electronic expansion valve; 21. valve needle; 211. conduction section; 212. first tapered section; 213. second tapered section; 22. driving screw; 23. transmission structure; 24. protective shell structure; 241. protective chamber; 25. mounting seat structure; 26. sealing body structure; 27. switch seat structure; 271. valve port flow channel; 272. insertion section; 28. first sealing ring structure; 29. second sealing ring structure; 291. electromagnetic coil structure; 30. First flow channel; 31. One-way inlet; 32. One-way outlet; 33. Entry section; 34.
  • an embodiment of the present application provides a valve seat, which is used to install a one-way valve 10 and an electronic expansion valve 20.
  • the valve seat has a first flow channel 30 and a second flow channel 40 inside.
  • the one-way valve 10 is arranged in the first flow channel 30 and cooperates with the inner wall of the first flow channel 30 to allow the liquid in the first flow channel 30 to flow in one direction;
  • the electronic expansion valve 20 is arranged on the valve seat and cooperates with the second flow channel 40 to control the opening and closing of the second flow channel 40; wherein the first flow channel 30 and the second flow channel 40 are independently arranged at intervals inside the valve seat.
  • the present application sets the first flow channel 30 and the second flow channel 40 independently at the internal interval of the valve seat, so that the flow channel controlled by the one-way valve 10 and the flow channel controlled by the electronic expansion valve 20 work independently, do not affect each other and have no intersection, thereby ensuring that the expansion valve and the one-way valve 10 can work independently, and can play the regulating role of the one-way valve 10 and the electronic expansion valve 20 respectively, and effectively meet the use requirements of the thermal management system in multiple modes and multiple working conditions;
  • the valve seat proposed in the present application is reliable in operation and simple in structure, easy to process and low in cost, and can flexibly adapt to different one-way valves 10 and electronic expansion valves 20 by flexibly setting the specific parameters of the first flow channel 30 and the second flow channel 40, and is suitable for large-scale promotion and use;
  • the flow control device using the valve seat proposed in the present application has both throttling function and one-way straight-through function.
  • the throttling function and/or the straight-through function can be selected to take effect according to the use requirements of the thermal management system;
  • the flow control device using the valve seat proposed in the present application has a high degree of product integration and a compact structure, which is conducive to simplifying pipeline connections and reducing occupied space.
  • first flow channel 30 and the second flow channel 40 are independently arranged inside the valve seat, which means that the first flow channel 30 and the second flow channel 40 are not connected.
  • the two ends of the second flow channel 40 are respectively a first through port 41 and a second through port 42, which are respectively arranged on opposite sides of the periphery of the valve seat, and the caliber of the first through port 41 is different from that of the second through port 42; when the electronic expansion valve 20 is in an open valve state, the first through port 41 is connected to the second through port 42; when the electronic expansion valve 20 is in a closed valve state, the first through port 41 is disconnected from the second through port 42.
  • the processing of the first through port 41 and the second through port 42 on the valve seat and the subsequent installation of the pipeline are facilitated; by setting the caliber of the first through port 41 to be different from the caliber of the second through port 42, the second flow channel 40 has a fluid pressure regulating function.
  • the diameters of the first through port 41 and the second through port 42 can be flexibly set according to the flow rate, flow direction and pressure change requirements of the actual fluid regulation to improve applicability.
  • the second flow channel 40 includes a first through section 43, a mounting section 44 and a second through section 45 which are connected in sequence.
  • a part of the electronic expansion valve 20 is arranged in the mounting section 44 and cooperates with the inner wall of the mounting section 44; the first through port 41 is the opening of the first through section 43, and the second through port 42 is the opening of the second through section 45; wherein, the central axis of the first through section 43 is parallel to the central axis of the second through section 45; the central axis of the first through section 43 and the central axis of the second through section 45 are respectively perpendicular to the central axis of the mounting section 44; the electronic expansion valve 20 controls the on and off of the second flow channel 40 by lifting and lowering the internal valve needle 21, and the lifting direction of the valve needle 21 is parallel to the central axis of the mounting section 44.
  • the processing and forming of the first through section 43 and the second through section 45 on the valve seat and the direct installation of the subsequent pipeline are facilitated; by setting the central axis of the first through section 43 and the central axis of the second through section 45 to be perpendicular to the central axis of the installation section 44 respectively, the convenient installation and reliable operation of the subsequent electronic expansion valve 20 are ensured.
  • first through opening 41 and the second through opening 42 are chamfered to facilitate accurate centering and installation of subsequent pipe joints.
  • the one-way inlet 31 and the one-way outlet 32 are chamfered to facilitate accurate centering and installation of subsequent pipe joints.
  • the flow area of the expanded diameter portion 341 is larger than the flow area of the first valve port 36 (for example, the maximum size of the expanded diameter portion is larger than the inner diameter of the first valve port), throttling in the first flow channel 30 is avoided, thereby improving the flow capacity of the first flow channel 30; by setting the inner diameter of the straight tube portion 342 to be smaller than the inner diameters of the inlet section 33 and the outlet section 35, the flow rate of the fluid in the straight tube portion 342 is effectively improved.
  • the throttling function and/or the direct-through function can be selected to take effect according to the use requirements of the thermal management system;
  • the flow control device using the valve seat proposed in the present application has a high degree of product integration and a compact structure, which is conducive to simplifying pipeline connections and reducing occupied space.
  • the one-way valve 10 can prevent the refrigerant from flowing back; if the flow control device is used in a hydraulic system, the one-way valve 10 can prevent the hydraulic oil from flowing in the opposite direction; if the flow control device is used in a pneumatic system, the one-way valve 10 can prevent the compressed air from flowing in the opposite direction.
  • the first flow channel 30 includes an inlet section 33, an opening and closing section 34 and an outlet section 35 which are connected in sequence, and the connection between the opening and closing section 34 and the inlet section 33 is a first valve port 36; the end of the opening and closing section 34 close to the first valve port 36 has an expanded diameter portion 341;
  • the one-way valve 10 includes a guide 11, a piston 12 and a sealing member 13; one end of the guide 11 is fixedly arranged, and the other end is elastically limitedly matched with one end of the piston 12; the other end of the piston 12 is arranged toward the first valve port 36; the sealing member 13 is installed on the other end of the piston 12, and is used to abut against the inner wall of the expanded diameter portion 341; the piston 12 moves along the central axis of the opening and closing section 34 under the guidance of the guide 11, so as to drive the sealing member 13 to open and close the first valve port 36.
  • Such an arrangement not only ensures the working reliability of the one-way valve 10, but also simplifies the structure of the one
  • the one-way valve 10 also includes an elastic member 14; the interior of the guide member 11 has a first limiting cavity 111, and the interior of the piston member 12 has a second limiting cavity 121, a portion of the guide member 11 is located in the second limiting cavity 121, and is slidably limited with the inner wall of the second limiting cavity 121; a portion of the elastic member 14 is located in the first limiting cavity 111, and the other portion is located in the second limiting cavity 121; the two ends of the elastic member 14 are respectively in contact with the bottom wall of the first limiting cavity 111 and the bottom wall of the second limiting cavity 121, so that the guide member 11 and the piston member 12 can be elastically matched.
  • an elastic member 14 for example, a spring
  • the rapid response and adaptive adjustment of the one-way valve 10 during the opening and closing process are ensured, thereby greatly improving the reliability and service life of the one-way valve 10; at the same time, this design helps to reduce the vibration and noise of the one-way valve 10 during operation, thereby improving the user experience and reducing maintenance costs.
  • the electronic expansion valve 20 includes a valve needle 21, a driving screw 22 and a transmission structure 23.
  • the driving screw 22 is connected to the valve needle 21 through the transmission structure 23.
  • the driving screw 22 can rotate relative to the valve needle 21.
  • the driving screw 22 drives the valve needle 21 to move axially by axial movement to control the opening and closing of the electronic expansion valve 20.
  • the electronic expansion valve 20 can accurately adjust the fluid flow rate to adapt to different working requirements.
  • This design improves the accuracy and speed of valve control, enhances the adaptability and flexibility of the thermal management system in complex environments, reduces energy consumption, and improves the overall energy efficiency of the system; at the same time, since the driving screw 22 will rotate relative to the valve needle 21 when it moves axially, the driving screw 22 and the valve needle 21 are connected by providing a transmission structure 23 in the present application, so that when the driving screw 22 moves axially, the valve needle 21 will only move axially and will not rotate, thereby avoiding the wear of the switch seat structure 27 caused by the rotation of the valve needle 21, thereby improving the service life of the switch seat structure 27.
  • the electronic expansion valve 20 also includes a protective shell structure 24 and a mounting seat structure 25.
  • the protective shell structure 24 has a protective cavity 241 inside, and at least a portion of the drive screw 22 and the transmission structure 23 are located in the protective cavity 241; the protective shell structure 24 is fixedly set on the mounting seat structure 25; wherein the second flow channel 40 includes a first through section 43, a mounting section 44 and a second through section 45 which are connected in sequence, and at least a portion of the mounting seat structure 25 is arranged in the mounting section 44 and cooperates with the inner wall of the mounting section 44 so that the electronic expansion valve 20 is installed on the valve seat.
  • the design of the protective shell structure 24 and the mounting seat structure 25 not only protects the driving screw 22 and the transmission structure 23 inside the electronic expansion valve 20, but also simplifies the installation process of the valve and reduces the difficulty of maintenance.
  • This structural design improves the working stability of the electronic expansion valve, extends its service life, and also enhances the overall reliability and performance of the thermal management system.
  • the electronic expansion valve 20 also includes a sealing body structure 26 and a switch seat structure 27.
  • One end of the sealing body structure 26 along the axial direction of the valve needle 21 is arranged at the end of the mounting seat structure 25 away from the protective shell structure 24, and the interior is connected to the protective cavity 241;
  • the valve needle 21 is movably arranged on the sealing body structure 26, and is limitedly matched with the inner wall of the sealing body structure 26;
  • the switch seat structure 27 is fixedly arranged on the other end of the sealing body structure 26 along the axial direction of the valve needle 21, and a valve port flow channel 271 is provided inside the switch seat structure 27, and the two ends of the valve port flow channel 271 are respectively connected to the interior of the sealing body structure 26 and the second through section 45, wherein the sealing body structure 26 and the switch seat structure 27 are respectively arranged in the mounting section 44;
  • the valve needle 21 controls the connection and disconnection of the first through section 43 and the second through section 45 by opening and closing the valve port flow channel 271.
  • the arrangement of the sealing body structure 26 and the switch seat structure 27 ensures good sealing of the electronic expansion valve 20 during the opening and closing process, and the valve needle 21 achieves fine adjustment of the fluid flow rate by controlling the opening and closing of the valve port flow channel 271.
  • This design improves the control accuracy of the electronic expansion valve, reduces energy loss during system operation, and improves the overall efficiency of the thermal management system.
  • a part of the switch seat structure 27 extends into the interior of the sealing body structure 26, and the part is the extension section 272, and the extension section 272 is sealed with the inner wall of the sealing body structure 26;
  • the valve port flow channel 271 passes through the extension section 272 to communicate with the interior of the sealing body structure 26;
  • the opening of the valve port flow channel 271 located at the extension section 272 is a conical opening, and
  • the valve needle 21 includes a conduction section 211, a first conical section 212 and a second conical section 213 connected in sequence along the axial direction of the valve needle 21, and the conduction section 211 is connected to the transmission structure 23; wherein, when the valve needle 21 closes the valve port flow channel 271, the outer periphery of the first conical section 212 is sealed with the conical opening, and the second conical section 213 extends into the valve port flow channel 271.
  • valve needle 21 By arranging the valve needle 21 to precisely match the tapered opening on the insertion section 272, and the insertion design of the second tapered section 213, the sealing of the electronic expansion valve in the closed state and the fluidity in the open state are ensured. This optimized design improves the accuracy and reliability of valve control and reduces the flow loss of the fluid during system operation.
  • the electronic expansion valve 20 also includes a first sealing ring structure 28, which is sleeved on the outer periphery of the switch seat structure 27, and the outer periphery of the first sealing ring structure 28 is sealed with the inner wall of the mounting section 44; wherein the first sealing ring structure 28 is located in a groove formed by the switch seat structure 27 and the sealing body structure 26.
  • the end of the switch seat structure 27 away from the sealing body structure 26 and the sealing body structure 26 are respectively limitedly matched with the first sealing ring structure 28 to constrain the first sealing ring structure 28 along the axial direction of the valve needle 21.
  • the setting of the first sealing ring structure 28, and the limiting cooperation with the switch seat structure 27 and the sealing body structure 26, ensure a good seal between the electronic expansion valve 20 and the valve seat during operation, and avoid fluid leakage.
  • This design not only improves the working reliability of the electronic expansion valve and the overall performance of the thermal management system, but also reduces maintenance costs and energy consumption.
  • the electronic expansion valve 20 also includes a second sealing ring structure 29, the mounting section 44 has a mounting groove 441, and at least a portion of the second sealing ring is arranged in the mounting groove 441; the second sealing ring structure 29 is respectively abutted against the mounting seat structure 25 and the bottom wall of the mounting groove 441 at both ends along the axial direction of the valve needle 21 to seal the gap between the mounting groove 441 and the mounting seat structure 25.
  • the coordinated design of the second sealing ring structure 29 and the mounting groove 441 further enhances the sealing between the electronic expansion valve 20 and the valve seat, and can effectively prevent fluid leakage, especially under high-pressure fluid working conditions, thereby ensuring safe operation of the system.
  • the electronic expansion valve 20 further includes an electromagnetic coil structure 291 .
  • the electromagnetic coil structure 291 is disposed outside the protective shell structure 24 and is connected to an external power source for driving the driving screw 22 to move axially.
  • the present application also provides a thermal management system, which includes the above-mentioned flow control device.
  • the thermal management system proposed in the present application can be used as an air conditioner, especially as a vehicle air conditioner.
  • the thermal management system proposed in the present application has high integration and compact structure.
  • the present application provides a valve seat, a flow control device and a thermal management system.
  • the present application sets the first flow channel 30 and the second flow channel 40 independently at intervals inside the valve seat, thereby achieving that the flow channel controlled by the one-way valve 10 and the flow channel controlled by the electronic expansion valve 20 work independently, do not affect each other and have no intersection, thereby ensuring that the expansion valve and the one-way valve 10 can work independently, and can play the regulating role of the one-way valve 10 and the electronic expansion valve 20 respectively, and efficiently meet the use requirements of the thermal management system in multiple modes and multiple working conditions;
  • the valve seat proposed in the present application is reliable in operation and structural
  • the invention is simple, easy to process and low in cost.
  • Different one-way valves 10 and electronic expansion valves 20 can be flexibly adapted by flexibly setting the specific parameters of the first flow channel 30 and the second flow channel 40, and is suitable for large-scale promotion and use.
  • the flow control device using the valve seat proposed in the present application has both a throttling function and a one-way straight-through function. In actual use, the throttling function and/or the straight-through function can be selected to take effect according to the use requirements of the thermal management system.
  • the flow control device using the valve seat proposed in the present application has a high degree of product integration and a compact structure, which is conducive to simplifying pipeline connections and reducing occupied space.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Lift Valve (AREA)

Abstract

本申请提供了一种阀座、流量控制装置及热管理系统，阀座用于安装单向阀和电子膨胀阀，阀座内部具有第一流道和第二流道，单向阀设置在第一流道内，且与第一流道的内壁配合工作，以使第一流道内的液体单向流通；电子膨胀阀设置在阀座上，且与第二流道配合，以控制第二流道的通断；其中，第一流道与第二流道在阀座的内部间隔独立设置。本申请实现了单向阀控制的流道与电子膨胀阀控制的流道各自独立工作，互不影响且没有交集，进而保证了膨胀阀和单向阀可以单独工作，可以分别发挥单向阀和电子膨胀阀的调节作用，高效满足了热管理系统多模式及多工况的使用需求；本申请提出的阀座，工作可靠且结构简单，易于加工且成本低廉。

Description

阀座、流量控制装置及热管理系统
本申请要求于2023年12月13日提交至中国国家知识产权局、申请号为202323406375.1、名称为“阀座、流量控制装置及热管理系统”的专利申请的优先权。
技术领域
本申请涉及阀门设备技术领域，具体而言，涉及一种阀座、流量控制装置及热管理系统。
背景技术
目前，现有的热管理系统(尤其是车载热管理系统)中的流量控制装置包括设置在管路中的电子膨胀阀和单向阀，以通过电子膨胀阀和单向阀对管路内的冷媒进行控制；为了简化结构，现有的电子膨胀阀和单向阀通常集成安装在一个阀座上，阀座的内部具有与电子膨胀阀配合的膨胀阀腔和与单向阀配合的单向阀腔，现有的阀座内部的膨胀阀腔和单向阀腔通常可以连通，使得电子膨胀阀和单向阀没办法同时打开或者分别单独工作，即膨胀阀腔与单向阀腔存在交叉，导致工作时只能允许单个流路流通，即电子膨胀阀关闭时，单向阀打开，流体仅仅流经单向阀；单向阀关闭时，电子膨胀阀打开，流体仅仅流经电子膨胀阀。这样就导致在热管理系统的一些工况下，使得集成在一个阀座上的电子膨胀阀与单向阀不能允许两个流路同时流通，即无法允许电子膨胀阀与单向阀同时处于打开模式；对于冷媒流动的调节灵活性有限，无法分别发挥单向阀和电子膨胀阀的调节作用，无法满足热管理系统多模式多工况的使用需求。
申请内容
本申请提供一种阀座、流量控制装置及热管理系统，以解决现有技术中的电子膨胀阀和单向阀没办法单独工作，进而无法满足热管理系统多模式多工况使用需求的问题。
为了解决上述问题，根据本申请的一个方面，提供了一种阀座，阀座用于安装单向阀和电子膨胀阀，阀座内部具有第一流道和第二流道，单向阀设置在第一流道内，且与第一流道的内壁配合工作，以使第一流道内的液体单向流通；电子膨胀阀设置在阀座上，且与第二流道配合，以控制第二流道的通断；其中，第一流道与第二流道在阀座的内部间隔独立设置。
进一步地，第二流道的两端分别为第一通过口和第二通过口，第一通过口和第二通过口分别设置在阀座外周的相对两侧；在电子膨胀阀处于开阀状态时，第一通过口与第二通过口连通；在电子膨胀阀处于关阀状态时，第一通过口与第二通过口断开。
进一步地，第二流道包括依次连通的第一通过段、安装段和第二通过段，电子膨胀阀的一部分设置在安装段内，且与安装段的内壁相配合；第一通过口为第一通过段的开口，第二通过口为第二通过段的开口；其中，第一通过段的中轴线与第二通过段的中轴线平行；第一通过段的中轴线、第二通过段的中轴线分别与安装段的中轴线垂直；电子膨胀阀通过内部的阀针升降来控制第二流道的通断，阀针的升降方向与安装段的中轴线平行。
进一步地，第一流道的两端分别为单向入口和单向出口，单向出口和单向入口分别设置在阀座外周的相对两侧，单向入口、单向出口当中的一者与第二通过口位于阀座外周的同一侧，另一者与第一通过口位于阀座外周的同一侧；在单向阀处于打开状态时，单向出口与单向入口连通，液体从单向入口进入，单向出口流出；在单向阀处于关闭状态时，单向出口与单向入口断开。
进一步地，第一流道包括依次连通的进入段、开闭段和流出段，单向阀可活动地设置在开闭段内，且与开闭段的内壁限位配合；单向入口为进入段的入口，单向出口为流出段的出口；其中，进入段的中轴线、开闭段的中轴线和流出段的中轴线共线；单向阀的运动方向与开闭段的中轴线平行。
进一步地，开闭段与进入段的连接处为第一阀口，单向阀用于开闭第一阀口；开闭段靠近第一阀口的一端具有扩径部，扩径部的流通面积大于第一阀口的流通面积；其中，扩径部的内壁面为锥形面；开闭段还包括与扩径部连通的直筒部，直筒部的内径小于进入段、流出段的内径，直筒部的内壁面为圆柱面。
进一步地，第二流道包括依次连通的第一通过段、安装段和第二通过段，电子膨胀阀的一部分设置在安装段内，且与安装段的内壁相配合；第一通过段的中轴线、第二通过段的中轴线分别与进入段的中轴线、开闭段的中轴线、流出段的中轴线平行。
根据本申请的另一方面，提供了一种流量控制装置，流量控制装置用于热管理系统内，以控制液体的流动；流量控制装置包括单向阀、电子膨胀阀和上述的阀座，单向阀设置在阀座的第一流道内，电子膨胀阀与阀座的第二流道配合。
进一步地，第一流道包括依次连通的进入段、开闭段和流出段，开闭段与进入段的连接处为第一阀口；开闭段靠近第一阀口的一端具有扩径部；单向阀包括导向件、活塞件以及密封件；导向件的一端固定设置，另一端与活塞件的一端弹性限位配合；活塞件的另一端朝向第一阀口设置；密封件安装于活塞件的另一端上，用于与扩径部的内壁抵接配合；活塞件在导向件的导向作用下沿着开闭段的中轴线运动，以带动密封件开闭第一阀口。
进一步地，单向阀还包括弹性件；导向件的内部具有第一限位腔，活塞件的内部具有第二限位腔，导向件的一部分位于第二限位腔内，且与第二限位腔的内壁滑动限位配合；弹性件的一部分位于第一限位腔内，另一部分位于第二限位腔内；弹性件的两端分别与第一限位腔的底壁、第二限位腔的底壁抵接，以使导向件与活塞件弹性配合。
进一步地，电子膨胀阀包括阀针、驱动螺杆和传动结构，驱动螺杆通过传动结构与阀针连接，驱动螺杆可相对阀针转动，驱动螺杆通过轴向移动驱动阀针轴向移动，以控制电子膨胀阀的开闭。
进一步地，电子膨胀阀还包括保护壳结构和安装座结构，保护壳结构内部具有保护腔，驱动螺杆和传动结构的至少一部分位于保护腔内；保护壳结构固定设置在安装座结构上；其中，第二流道包括依次连通的第一通过段、安装段和第二通过段，安装座结构的至少一部分设置在安装段内。
进一步地，电子膨胀阀还包括密封体结构和开关座结构，密封体结构沿阀针轴向的一端设置在安装座结构远离保护壳结构的一端，且内部与保护腔连通；阀针可移动地设置在密封体结构上，且与密封体结构的内壁限位配合；开关座结构固定设置在密封体结构沿阀针轴向的另一端上，开关座结构内部具有阀口流道，阀口流道的两端分别与密封体结构的内部、第二通过段连通，其中，密封体结构和开关座结构分别设置在安装段内；阀针通过开闭阀口流道，控制第一通过段与第二通过段的通断。
进一步地，开关座结构的一部分伸入密封体结构的内部，该部分为伸入段，伸入段与密封体结构的内壁密封配合；阀口流道贯穿伸入段，以与密封体结构的内部连通；阀口流道位于伸入段的开口为锥形开口，阀针包括沿阀针轴向依次连接的传导段、第一锥形段和第二锥形段，传导段与传动结构连接；其中，在阀针关闭阀口流道时，第一锥形段的外周与锥形开口密封配合，第二锥形段伸入阀口流道内。
进一步地，电子膨胀阀还包括第一密封圈结构，第一密封圈结构的外周与安装段的内壁密封配合；其中，第一密封圈结构位于开关座结构、密封体结构形成的凹槽内。
进一步地，电子膨胀阀还包括第二密封圈结构，安装段具有安装槽，第二密封圈的至少一部分设置在安装槽内；第二密封圈结构沿阀针的轴向的两端分别与安装座结构、安装槽的底壁抵接，以密封安装槽与安装座结构之间的间隙。
进一步地，电子膨胀阀还包括电磁线圈结构，电磁线圈结构设置在保护壳结构的外部，且与外部电源连通，用于驱动驱动螺杆轴向移动。
根据本申请的另一方面，提供了一种热管理系统，热管理系统包括上述的流量控制装置。
应用本申请的技术方案，本申请提供了一种阀座，阀座用于安装单向阀和电子膨胀阀，阀座内部具有第一流道和第二流道，单向阀设置在第一流道内，且与第一流道的内壁配合工作，以使第一流道内的液体单向流通；电子膨胀阀设置在阀座上，且与第二流道配合，以控制第二流道的通断；其中，第一流道与第二流道在阀座的内部间隔独立设置。本申请通过设置第一流道与第二流道在阀座的内部间隔独立设置，实现了单向阀控制的流道与电子膨胀阀控制的流道各自独立工作，互不影响且没有交集，进而保证了膨胀阀和单向阀可以单独工作，可以分别发挥单向阀和电子膨胀阀的调节作用，高效满足了热管理系统多模式及多工况的使用需求；本申请提出的阀座，工作可靠且结构简单，易于加工且成本低廉，可以通过灵活设置第一流道和第二流道的具体参数来灵活适配不同的单向阀和电子膨胀阀，适合大面积推广使用；应用本申请提出的阀座的流量控制装置，其同时具备节流功能和单向直通功能，在实际使用时可根据热管理系统的使用需求选择节流功能和/或直通功能生效；应用本申请提出的阀座的流量控制装置，产品集成度较高且结构紧凑，有利于简化管路连接以及减少占用的空间。
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示出了本申请的实施例提供的阀座的内部结构示意图；
图2示出了本申请的实施例提供的流量控制装置的部分结构示意图；
图3示出了图2中单向阀所在位置的局部放大视图；
图4示出了图2中开关座结构所在位置的局部放大视图。
其中，上述附图包括以下附图标记：
10、单向阀；11、导向件；111、第一限位腔；12、活塞件；121、第二限位腔；
13、密封件；14、弹性件；
20、电子膨胀阀；21、阀针；211、传导段；212、第一锥形段；213、第二锥形段；
22、驱动螺杆；23、传动结构；24、保护壳结构；241、保护腔；25、安装座结构；26、密封体结构；27、开关座结构；271、阀口流道；272、伸入段；28、第一密封圈结构；29、第二密封圈结构；291、电磁线圈结构；
30、第一流道；31、单向入口；32、单向出口；33、进入段；34、开闭段；341、
扩径部；342、直筒部；35、流出段；36、第一阀口；
40、第二流道；41、第一通过口；42、第二通过口；43、第一通过段；44、安装
段；441、安装槽；45、第二通过段。
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。以下对至少一个示例性实施例的描述实际上仅仅是说明性的，决不作为对本申请及其应用或使用的任何限制。基于本申请中的实施例，本领域普通技术人员在没有作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。
如图1至图4所示，本申请的实施例提供了一种阀座，阀座用于安装单向阀10和电子膨胀阀20，阀座内部具有第一流道30和第二流道40，单向阀10设置在第一流道30内，且与第一流道30的内壁配合工作，以使第一流道30内的液体单向流通；电子膨胀阀20设置在阀座上，且与第二流道40配合，以控制第二流道40的通断；其中，第一流道30与第二流道40在阀座的内部间隔独立设置。
本申请通过设置第一流道30与第二流道40在阀座的内部间隔独立设置，实现了单向阀10控制的流道与电子膨胀阀20控制的流道各自独立工作，互不影响且没有交集，进而保证了膨胀阀和单向阀10可以单独工作，可以分别发挥单向阀10和电子膨胀阀20的调节作用，高效满足了热管理系统多模式及多工况的使用需求；本申请提出的阀座，工作可靠且结构简单，易于加工且成本低廉，可以通过灵活设置第一流道30和第二流道40的具体参数来灵活适配不同的单向阀10和电子膨胀阀20，适合大面积推广使用；应用本申请提出的阀座的流量控制装置，其同时具备节流功能和单向直通功能，在实际使用时可根据热管理系统的使用需求选择节流功能和/或直通功能生效；应用本申请提出的阀座的流量控制装置，产品集成度较高且结构紧凑，有利于简化管路连接以及减少占用的空间。
需要说明的是：第一流道30与第二流道40在阀座的内部间隔独立设置表示第一流道30与第二流道40不相连通。
如图1和图2所示，第二流道40的两端分别为第一通过口41和第二通过口42，第一通过口41和第二通过口42分别设置在阀座外周的相对两侧，且第一通过口41的口径与第二通过口42的口径不同；在电子膨胀阀20处于开阀状态时，第一通过口41与第二通过口42连通；在电子膨胀阀20处于关阀状态时，第一通过口41与第二通过口42断开。
通过设置第一通过口41和第二通过口42分别设置在阀座外周的两侧，便于第一通过口41和第二通过口42在阀座上的加工以及后续管路的安装；通过设置第一通过口41的口径与第二通过口42的口径不同，使得第二流道40具有流体压力调节功能。
需要说明的是：在实际使用时，可以根据实际流体调控的流量、流向及压力变化要求，灵活设置第一通过口41和第二通过口42的口径，以提高适用性。
如图1和图2所示，第二流道40包括依次连通的第一通过段43、安装段44和第二通过段45，电子膨胀阀20的一部分设置在安装段44内，且与安装段44的内壁相配合；第一通过口41为第一通过段43的开口，第二通过口42为第二通过段45的开口；其中，第一通过段43的中轴线与第二通过段45的中轴线平行；第一通过段43的中轴线、第二通过段45的中轴线分别与安装段44的中轴线垂直；电子膨胀阀20通过内部的阀针21升降来控制第二流道40的通断，阀针21的升降方向与安装段44的中轴线平行。
通过设置第一通过段43的中轴线与第二通过段45的中轴线平行，便于第一通过段43和第二通过段45在阀座上的加工成型以及后续管路的直接安装；通过设置第一通过段43的中轴线、第二通过段45的中轴线分别与安装段44的中轴线垂直，保证了后续电子膨胀阀20的便捷安装及工作可靠。
在本申请的一个具体实施例中，第一通过口41和第二通过口42分别倒角设置，以便于后续管路接头的对中准确安装。
如图1、图2和图3所示，第一流道30的两端分别为单向入口31和单向出口32，单向出口32和单向入口31分别设置在阀座外周的相对两侧，且单向入口31的口径与单向出口32的口径相同；单向入口31、单向出口32当中的一者与第二通过口42位于阀座外周的同一侧，另一者与第一通过口41位于阀座外周的同一侧；在单向阀10处于打开状态时，单向出口32与单向入口31连通，液体从单向入口31进入，单向出口32流出；在单向阀10处于关闭状态时，单向出口32与单向入口31断开。通过设置单向入口31的口径与单向出口32的口径相同，既便于单向入口31与单向出口32的一次加工成型，又使得流体在经过第一流道30后压力变化较小。
如图1、图2和图3所示，第一流道30包括依次连通的进入段33、开闭段34和流出段35，单向阀10可活动地设置在开闭段34内，且与开闭段34的内壁限位配合；单向入口31为进入段33的入口，单向出口32为流出段35的出口；其中，进入段33的中轴线、开闭段34的中轴线和流出段35的中轴线共线；单向阀10的运动方向与开闭段34的中轴线平行。通过设置进入段33的中轴线、开闭段34的中轴线和流出段35的中轴线共线，保证了第一流道30的结构简单化和流通顺畅性。
在本申请的一个具体实施例中，单向入口31与单向出口32分别倒角设置，以便于后续管路接头的对中准确安装。
如图1、图2和图3所示，开闭段34与进入段33的连接处为第一阀口36，单向阀10用于开闭第一阀口36；开闭段34靠近第一阀口36的一端具有扩径部341，扩径部341的流通面积大于第一阀口36的流通面积；其中，扩径部341的内壁面为锥形面；开闭段34还包括与扩径部341连通的直筒部342，直筒部342的内径小于进入段33、流出段35的内径，直筒部342的内壁面为圆柱面。
通过设置扩径部341的流通面积大于第一阀口36的流通面积(例如：扩径部的最大尺寸大于第一阀口的内径)，避免了第一流道30出现节流现象，进而提高了第一流道30的流通能力；通过设置直筒部342的内径小于进入段33、流出段35的内径，有效提高了直筒部342内流体的流速。
如图1和图2所示，第二流道40包括依次连通的第一通过段43、安装段44和第二通过段45，电子膨胀阀20的一部分设置在安装段44内，且与安装段44的内壁相配合；第一通过段43的中轴线、第二通过段45的中轴线分别与进入段33的中轴线、开闭段34的中轴线、流出段35的中轴线平行。这样设置，使得阀座在进行钻孔加工时，可以经过一次定位及加工，至少依次钻出第一通过段43、第二通过段45、进入段33和流出段35，进而保证了阀座整体易于加工且有效降低了加工成本。
本申请还提供了一种流量控制装置，流量控制装置用于热管理系统内，以控制液体的流动；流量控制装置包括单向阀10、电子膨胀阀20和上述的阀座，单向阀10设置在阀座的第一流道30内，电子膨胀阀20与阀座的第二流道40配合。本申请提出的流量控制装置，其同时具备节流功能和单向直通功能，在实际使用时可根据热管理系统的使用需求来选择节流功能和/或直通功能生效；应用本申请提出的阀座的流量控制装置，产品集成度较高且结构紧凑，有利于简化管路连接以及减少占用的空间。
需要说明的是：流量控制装置如果应用于空调器中，单向阀10可以防止制冷剂倒流；流量控制装置如果应用于液压系统中，单向阀10可以防止液压油反向流动；流量控制装置如果应用于气动系统中，单向阀10可以防止压缩空气逆向流动。
如图2所示，第一流道30包括依次连通的进入段33、开闭段34和流出段35，开闭段34与进入段33的连接处为第一阀口36；开闭段34靠近第一阀口36的一端具有扩径部341；单向阀10包括导向件11、活塞件12以及密封件13；导向件11的一端固定设置，另一端与活塞件12的一端弹性限位配合；活塞件12的另一端朝向第一阀口36设置；密封件13安装于活塞件12的另一端上，用于与扩径部341的内壁抵接配合；活塞件12在导向件11的导向作用下沿着开闭段34的中轴线运动，以带动密封件13开闭第一阀口36。这样设置，既保证了单向阀10的工作可靠性，又使得单向阀10的结构趋于简单化，进而有效降低了成本且便于后续维护及更换。
需要说明的是，在实际使用中发现，单向阀10的活塞件12在向第一阀口36靠近或远离的运动中，经常会由于密封件13的膨胀而使得第一流道30出现节流现象，会阻碍流体的流通，从而对单向阀10的正常工作产生不利影响；因此本申请通过在开闭段34内设置扩径部341，且扩径部341的内壁面为锥形面，有效避免了节流风险，提高了流通能力。
如图3所示，单向阀10还包括弹性件14；导向件11的内部具有第一限位腔111，活塞件12的内部具有第二限位腔121，导向件11的一部分位于第二限位腔121内，且与第二限位腔121的内壁滑动限位配合；弹性件14的一部分位于第一限位腔111内，另一部分位于第二限位腔121内；弹性件14的两端分别与第一限位腔111的底壁、第二限位腔121的底壁抵接，以使导向件11与活塞件12弹性配合。
通过在导向件11和活塞件12之间设置弹性件14(例如：弹簧)，确保了单向阀10在开启和关闭过程中的快速响应和自适应调节，大大提高了单向阀10的可靠性和使用寿命；同时，这种设计有助于减少单向阀10工作时的振动和噪音，提升了用户体验，降低了维护成本。
如图2所示，电子膨胀阀20包括阀针21、驱动螺杆22和传动结构23，驱动螺杆22通过传动结构23与阀针21连接，驱动螺杆22可相对阀针21转动，驱动螺杆22通过轴向移动驱动阀针21轴向移动，以控制电子膨胀阀20的开闭。
通过设置驱动螺杆22和传动结构23对阀针21进行轴向移动控制，使得电子膨胀阀20能够精确调节流体流量，适应不同的工作需求，这种设计提升了阀门控制的精度和速度，增强了热管理系统在复杂环境下的适应性和灵活性，降低了能耗，提高了系统整体的能效；同时，由于驱动螺杆22在轴向移动时会相对阀针21转动，本申请中通过设置传动结构23将驱动螺杆22和阀针21连接，使得驱动螺杆22在轴向移动时，阀针21只会轴向移动，不会发生转动，因此避免了阀针21转动导致开关座结构27出现磨损，进而提高了开关座结构27的使用寿命。
如图2所示，电子膨胀阀20还包括保护壳结构24和安装座结构25，保护壳结构24内部具有保护腔241，驱动螺杆22和传动结构23的至少一部分位于保护腔241内；保护壳结构24固定设置在安装座结构25上；其中，第二流道40包括依次连通的第一通过段43、安装段44和第二通过段45，安装座结构25的至少一部分设置在安装段44内，且与安装段44的内壁相配合，以使电子膨胀阀20安装在阀座上。
保护壳结构24和安装座结构25的设计，不仅保护了电子膨胀阀20内部的驱动螺杆22和传动结构23，还简化了阀门的安装过程，降低了维护难度，这种结构设计提升了电子膨胀阀的工作稳定性，延长了其使用寿命，同时也增强了热管理系统的整体可靠性和性能表现。
如图2和图4所示，电子膨胀阀20还包括密封体结构26和开关座结构27，密封体结构26沿阀针21轴向的一端设置在安装座结构25远离保护壳结构24的一端，且内部与保护腔241连通；阀针21可移动地设置在密封体结构26上，且与密封体结构26的内壁限位配合；开关座结构27固定设置在密封体结构26沿阀针21轴向的另一端上，开关座结构27内部具有阀口流道271，阀口流道271的两端分别与密封体结构26的内部、第二通过段45连通，其中，密封体结构26和开关座结构27分别设置在安装段44内；阀针21通过开闭阀口流道271，控制第一通过段43与第二通过段45的通断。
密封体结构26和开关座结构27的设置，确保了电子膨胀阀20在开闭过程中的良好密封性，阀针21通过控制阀口流道271的开启和关闭，实现了流体流量的精细调节。这种设计提高了电子膨胀阀的控制精度，降低了系统运行过程中的能量损失，提升了热管理系统的整体效率。
如图4所示，开关座结构27的一部分伸入密封体结构26的内部，该部分为伸入段272，伸入段272与密封体结构26的内壁密封配合；阀口流道271贯穿伸入段272，以与密封体结构26的内部连通；阀口流道271位于伸入段272的开口为锥形开口，阀针21包括沿阀针21轴向依次连接的传导段211、第一锥形段212和第二锥形段213，传导段211与传动结构23连接；其中，在阀针21关闭阀口流道271时，第一锥形段212的外周与锥形开口密封配合，第二锥形段213伸入阀口流道271内。
通过设置阀针21与伸入段272上的锥形开口精确配合，以及第二锥形段213的伸入设计，确保了电子膨胀阀在关闭状态下的密封性和开启状态下的流通性，这种优化设计提高了阀门控制的精度和可靠性，降低了系统运行过程中流体的流动损失。
如图2和图4所示，电子膨胀阀20还包括第一密封圈结构28，第一密封圈结构28套设在开关座结构27的外周，且第一密封圈结构28的外周与安装段44的内壁密封配合；其中，第一密封圈结构28位于开关座结构27、密封体结构26形成的凹槽内。
在本申请的一个实施例中，开关座结构27远离密封体结构26的一端、密封体结构26分别与第一密封圈结构28限位配合，以沿阀针21的轴向约束第一密封圈结构28。
第一密封圈结构28的设置，以及与开关座结构27和密封体结构26的限位配合，确保了电子膨胀阀20在运行过程中与阀座之间的良好密封，避免了流体的泄漏，这种设计不仅提高了电子膨胀阀的工作可靠性和热管理系统的整体性能，还降低了维护成本和能耗。
如图2所示，电子膨胀阀20还包括第二密封圈结构29，安装段44具有安装槽441，第二密封圈的至少一部分设置在安装槽441内；第二密封圈结构29沿阀针21的轴向的两端分别与安装座结构25、安装槽441的底壁抵接，以密封安装槽441与安装座结构25之间的间隙。
第二密封圈结构29与安装槽441的配合设计，进一步增强了电子膨胀阀20与阀座之间的密封性，尤其是在高压流体工况下，能够有效防止流体泄漏，保证了系统的安全运行。
如图2所示，电子膨胀阀20还包括电磁线圈结构291，电磁线圈结构291设置在保护壳结构24的外部，且与外部电源连通，用于驱动驱动螺杆22轴向移动。
通过设置电磁线圈结构291，为驱动螺杆22提供了稳定可控的驱动力，使得电子膨胀阀能够快速响应系统需求，实现精确的流量控制。
本申请还提供了一种热管理系统，热管理系统包括上述的流量控制装置。本申请提出的热管理系统可以作为空调器使用，尤其是作为车载空调使用，本申请提出的热管理系统，集成度较高且结构紧凑。
综上所述，本申请提供了一种阀座、流量控制装置及热管理系统，本申请通过设置第一流道30与第二流道40在阀座的内部间隔独立设置，实现了单向阀10控制的流道与电子膨胀阀20控制的流道各自独立工作，互不影响且没有交集，进而保证了膨胀阀和单向阀10可以单独工作，可以分别发挥单向阀10和电子膨胀阀20的调节作用，高效满足了热管理系统多模式及多工况的使用需求；本申请提出的阀座，工作可靠且结构简单，易于加工且成本低廉，可以通过灵活设置第一流道30和第二流道40的具体参数来灵活适配不同的单向阀10和电子膨胀阀20，适合大面积推广使用；应用本申请提出的阀座的流量控制装置，其同时具备节流功能和单向直通功能，在实际使用时可根据热管理系统的使用需求选择节流功能和/或直通功能生效；应用本申请提出的阀座的流量控制装置，产品集成度较高且结构紧凑，有利于简化管路连接以及减少占用的空间。
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 (18)

  1. 一种阀座，其特征在于，所述阀座用于安装单向阀(10)和电子膨胀阀(20)，所述阀座内部具有第一流道(30)和第二流道(40)，所述单向阀(10)设置在所述第一流道(30)内，且与所述第一流道(30)的内壁配合工作，以使所述第一流道(30)内的液体单向流通；所述电子膨胀阀(20)设置在所述阀座上，且与所述第二流道(40)配合，以控制所述第二流道(40)的通断；其中，所述第一流道(30)与所述第二流道(40)在所述阀座的内部间隔独立设置。
  2. 根据权利要求1所述的阀座，其特征在于，所述第二流道(40)的两端分别为第一通过口(41)和第二通过口(42)，所述第一通过口(41)和所述第二通过口(42)分别设置在所述阀座外周的相对两侧；在所述电子膨胀阀(20)处于开阀状态时，所述第一通过口(41)与所述第二通过口(42)连通；在所述电子膨胀阀(20)处于关阀状态时，所述第一通过口(41)与所述第二通过口(42)断开。
  3. 根据权利要求2所述的阀座，其特征在于，所述第二流道(40)包括依次连通的第一通过段(43)、安装段(44)和第二通过段(45)，所述电子膨胀阀(20)的一部分设置在所述安装段(44)内，且与所述安装段(44)的内壁相配合；所述第一通过口(41)为所述第一通过段(43)的开口，所述第二通过口(42)为所述第二通过段(45)的开口；其中，所述第一通过段(43)的中轴线与所述第二通过段(45)的中轴线平行；所述第一通过段(43)的中轴线、所述第二通过段(45)的中轴线分别与所述安装段(44)的中轴线垂直；所述电子膨胀阀(20)通过内部的阀针(21)升降来控制所述第二流道(40)的通断，所述阀针(21)的升降方向与所述安装段(44)的中轴线平行。
  4. 根据权利要求2所述的阀座，其特征在于，所述第一流道(30)的两端分别为单向入口(31)和单向出口(32)，所述单向出口(32)和所述单向入口(31)分别设置在所述阀座外周的相对两侧，所述单向入口(31)、所述单向出口(32)当中的一者与所述第二通过口(42)位于所述阀座外周的同一侧，另一者与所述第一通过口(41)位于所述阀座外周的同一侧；在所述单向阀(10)处于打开状态时，所述单向出口(32)与所述单向入口(31)连通，液体从所述单向入口(31)进入，所述单向出口(32)流出；在所述单向阀(10)处于关闭状态时，所述单向出口(32)与所述单向入口(31)断开。
  5. 根据权利要求4所述的阀座，其特征在于，所述第一流道(30)包括依次连通的进入段(33)、开闭段(34)和流出段(35)，所述单向阀(10)可活动地设置在所述开闭段(34)内，且与所述开闭段(34)的内壁限位配合；所述单向入口(31)为所述进入段(33)的入口，所述单向出口(32)为所述流出段(35)的出口；其中，所述进入段(33)的中轴线、所述开闭段(34)的中轴线和所述流出段(35)的中轴线共线；所述单向阀(10)的运动方向与所述开闭段(34)的中轴线平行。
  6. 根据权利要求5所述的阀座，其特征在于，所述开闭段(34)与所述进入段(33)的连接处为第一阀口(36)，所述单向阀(10)用于开闭所述第一阀口(36)；所述开闭段(34)靠近所述第一阀口(36)的一端具有扩径部(341)，所述扩径部(341)的流通面积大于所述第一阀口(36)的流通面积；其中，所述扩径部(341)的内壁面为锥形面；所述开闭段(34)还包括与所述扩径部(341)连通的直筒部(342)，所述直筒部(342)的内径小于所述进入段(33)、所述流出段(35)的内径，所述直筒部(342)的内壁面为圆柱面。
  7. 根据权利要求5所述的阀座，其特征在于，所述第二流道(40)包括依次连通的第一通过段(43)、安装段(44)和第二通过段(45)，所述电子膨胀阀(20)的一部分设置在所述安装段(44)内，且与所述安装段(44)的内壁相配合；所述第一通过段(43)的中轴线、所述第二通过段(45)的中轴线分别与所述进入段(33)的中轴线、所述开闭段(34)的中轴线、所述流出段(35)的中轴线平行。
  8. 一种流量控制装置，其特征在于，所述流量控制装置用于热管理系统内，以控制液体的流动；所述流量控制装置包括单向阀(10)、电子膨胀阀(20)和权利要求1至7任一项所述的阀座，所述单向阀(10)设置在所述阀座的第一流道(30)内，所述电子膨胀阀(20)与所述阀座的第二流道(40)配合。
  9. 根据权利要求8所述的流量控制装置，其特征在于，所述第一流道(30)包括依次连通的进入段(33)、开闭段(34)和流出段(35)，所述开闭段(34)与所述进入段(33)的连接处为第一阀口(36)；所述开闭段(34)靠近所述第一阀口(36)的一端具有扩径部(341)；所述单向阀(10)包括导向件(11)、活塞件(12)以及密封件(13)；所述导向件(11)的一端固定设置，另一端与所述活塞件(12)的一端弹性限位配合；所述活塞件(12)的另一端朝向所述第一阀口(36)设置；所述密封件(13)安装于所述活塞件(12)的另一端上，用于与所述扩径部(341)的内壁抵接配合；所述活塞件(12)在所述导向件(11)的导向作用下沿着所述开闭段(34)的中轴线运动，以带动所述密封件(13)开闭所述第一阀口(36)。
  10. 根据权利要求9所述的流量控制装置，其特征在于，所述单向阀(10)还包括弹性件(14)；所述导向件(11)的内部具有第一限位腔(111)，所述活塞件(12)的内部具有第二限位腔(121)，所述导向件(11)的一部分位于所述第二限位腔(121)内，且与所述第二限位腔(121)的内壁滑动限位配合；所述弹性件(14)的一部分位于所述第一限位腔(111)内，另一部分位于所述第二限位腔(121)内；所述弹性件(14)的两端分别与所述第一限位腔(111)的底壁、所述第二限位腔(121)的底壁抵接，以使所述导向件(11)与所述活塞件(12)弹性配合。
  11. 根据权利要求8所述的流量控制装置，其特征在于，所述电子膨胀阀(20)包括阀针(21)、驱动螺杆(22)和传动结构(23)，所述驱动螺杆(22)通过所述传动结构(23)与所述阀针(21)连接，所述驱动螺杆(22)可相对所述阀针(21)转动，所述驱动螺杆(22)通过轴向移动驱动所述阀针(21)轴向移动，以控制所述电子膨胀阀(20)的开闭。
  12. 根据权利要求11所述的流量控制装置，其特征在于，所述电子膨胀阀(20)还包括保护壳结构(24)和安装座结构(25)，所述保护壳结构(24)内部具有保护腔(241)，所述驱动螺杆(22)和所述传动结构(23)的至少一部分位于所述保护腔(241)内；所述保护壳结构(24)固定设置在所述安装座结构(25)上；其中，所述第二流道(40)包括依次连通的第一通过段(43)、安装段(44)和第二通过段(45)，所述安装座结构(25)的至少一部分设置在所述安装段(44)内。
  13. 根据权利要求12所述的流量控制装置，其特征在于，所述电子膨胀阀(20)还包括密封体结构(26)和开关座结构(27)，所述密封体结构(26)沿所述阀针(21)轴向的一端设置在所述安装座结构(25)远离所述保护壳结构(24)的一端，且内部与所述保护腔(241)连通；所述阀针(21)可移动地设置在所述密封体结构(26)上，且与所述密封体结构(26)的内壁限位配合；所述开关座结构(27)固定设置在所述密封体结构(26)沿所述阀针(21)轴向的另一端上，所述开关座结构(27)内部具有阀口流道(271)，所述阀口流道(271)的两端分别与所述密封体结构(26)的内部、所述第二通过段(45)连通，其中，所述密封体结构(26)和所述开关座结构(27)分别设置在所述安装段(44)内；所述阀针(21)通过开闭所述阀口流道(271)，控制所述第一通过段(43)与所述第二通过段(45)的通断。
  14. 根据权利要求13所述的流量控制装置，其特征在于，所述开关座结构(27)的一部分伸入所述密封体结构(26)的内部，该部分为伸入段(272)，所述伸入段(272)与所述密封体结构(26)的内壁密封配合；所述阀口流道(271)贯穿所述伸入段(272)，以与所述密封体结构(26)的内部连通；所述阀口流道(271)位于所述伸入段(272)的开口为锥形开口，所述阀针(21)包括沿所述阀针(21)轴向依次连接的传导段(211)、第一锥形段(212)和第二锥形段(213)，所述传导段(211)与所述传动结构(23)连接；其中，在所述阀针(21)关闭所述阀口流道(271)时，所述第一锥形段(212)的外周与所述锥形开口密封配合，所述第二锥形段(213)伸入所述阀口流道(271)内。
  15. 根据权利要求13所述的流量控制装置，其特征在于，所述电子膨胀阀(20)还包括第一密封圈结构(28)，所述第一密封圈结构(28)的外周与所述安装段(44)的内壁密封配合；其中，所述第一密封圈结构(28)位于所述开关座结构(27)、所述密封体结构(26)形成的凹槽内。
  16. 根据权利要求12所述的流量控制装置，其特征在于，所述电子膨胀阀(20)还包括第二密封圈结构(29)，所述安装段(44)具有安装槽(441)，所述第二密封圈的至少一部分设置在所述安装槽(441)内；所述第二密封圈结构(29)沿所述阀针(21)的轴向的两端分别与所述安装座结构(25)、所述安装槽(441)的底壁抵接，以密封所述安装槽(441)与所述安装座结构(25)之间的间隙。
  17. 根据权利要求12所述的流量控制装置，其特征在于，所述电子膨胀阀(20)还包括电磁线圈结构(291)，所述电磁线圈结构(291)设置在所述保护壳结构(24)的外部，且与外部电源连通，用于驱动所述驱动螺杆(22)轴向移动。
  18. 一种热管理系统，其特征在于，所述热管理系统包括权利要求8至17任一项所述的流量控制装置。
PCT/CN2024/139387 2023-12-13 2024-12-13 阀座、流量控制装置及热管理系统 Pending WO2025124580A1 (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202323406375.1 2023-12-13
CN202323406375.1U CN221547846U (zh) 2023-12-13 2023-12-13 阀座、流量控制装置及热管理系统

Publications (1)

Publication Number Publication Date
WO2025124580A1 true WO2025124580A1 (zh) 2025-06-19

Family

ID=92226112

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2024/139387 Pending WO2025124580A1 (zh) 2023-12-13 2024-12-13 阀座、流量控制装置及热管理系统

Country Status (2)

Country Link
CN (1) CN221547846U (zh)
WO (1) WO2025124580A1 (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN120890206A (zh) * 2025-08-06 2025-11-04 江森自控日立万宝空调(广州)有限公司 一种热泵空调系统的冷媒单向阀换向管路

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN221547846U (zh) * 2023-12-13 2024-08-16 盾安汽车热管理科技有限公司 阀座、流量控制装置及热管理系统

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08502575A (ja) * 1992-10-15 1996-03-19 パーカー ハニフィン コーポレイション 比例ソレノイドを備えた空気調節装置用膨張弁
KR20020071789A (ko) * 2002-03-22 2002-09-13 손형모 체크밸브
JP2002310541A (ja) * 2001-04-13 2002-10-23 Saginomiya Seisakusho Inc 流量制御弁及び流量制御弁の制御装置
JP2004116825A (ja) * 2002-09-25 2004-04-15 Fuji Koki Corp 電気式膨張弁
JP2005249154A (ja) * 2004-03-08 2005-09-15 Tgk Co Ltd 逆止弁
CN115111377A (zh) * 2021-03-23 2022-09-27 盾安汽车热管理科技有限公司 电子膨胀阀
CN217736284U (zh) * 2022-06-16 2022-11-04 盾安汽车热管理科技有限公司 电子膨胀阀
CN221547846U (zh) * 2023-12-13 2024-08-16 盾安汽车热管理科技有限公司 阀座、流量控制装置及热管理系统

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08502575A (ja) * 1992-10-15 1996-03-19 パーカー ハニフィン コーポレイション 比例ソレノイドを備えた空気調節装置用膨張弁
JP2002310541A (ja) * 2001-04-13 2002-10-23 Saginomiya Seisakusho Inc 流量制御弁及び流量制御弁の制御装置
KR20020071789A (ko) * 2002-03-22 2002-09-13 손형모 체크밸브
JP2004116825A (ja) * 2002-09-25 2004-04-15 Fuji Koki Corp 電気式膨張弁
JP2005249154A (ja) * 2004-03-08 2005-09-15 Tgk Co Ltd 逆止弁
CN115111377A (zh) * 2021-03-23 2022-09-27 盾安汽车热管理科技有限公司 电子膨胀阀
CN217736284U (zh) * 2022-06-16 2022-11-04 盾安汽车热管理科技有限公司 电子膨胀阀
CN221547846U (zh) * 2023-12-13 2024-08-16 盾安汽车热管理科技有限公司 阀座、流量控制装置及热管理系统

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN120890206A (zh) * 2025-08-06 2025-11-04 江森自控日立万宝空调(广州)有限公司 一种热泵空调系统的冷媒单向阀换向管路

Also Published As

Publication number Publication date
CN221547846U (zh) 2024-08-16

Similar Documents

Publication Publication Date Title
WO2025124580A1 (zh) 阀座、流量控制装置及热管理系统
CN112197018B (zh) 一种自适应调节航空发动机通风方式的活门
CN103090070B (zh) 先导式减压阀
CN216742910U (zh) 电子膨胀阀
EP4033180B1 (en) Electromagnetic valve having hard sealing structure
TWI421426B (zh) 電動針閥
WO2024125521A1 (zh) 电子膨胀阀
US12510163B2 (en) Electromagnetic valve and air conditioning system having same
JP2025502029A (ja) 電子膨張弁
WO2021135348A1 (zh) 电子膨胀阀及使用该电子膨胀阀的空调系统
WO2024212906A1 (zh) 阀组件及电子膨胀阀
CN112128432B (zh) 一种用于有毒气体管道的泄压电磁阀
WO2023036318A1 (zh) 防冻阀
CN112747001B (zh) 一种带位置反馈的先导式溢流阀
CN220435432U (zh) 自动调节开度的蝶阀
CN219035577U (zh) 电子膨胀阀
CN218523106U (zh) 一种电磁先导气控阀结构
CN213744930U (zh) 一种自力式活塞阀
CN114215925A (zh) 调节阀
CN223387995U (zh) 一种气动复位电磁阀
CN222437071U (zh) 一种天然气输气调压装置
CN218031479U (zh) 补水阀及其水阀
CN222925048U (zh) 一种双出口先导阀主阀及先导阀
CN223839805U (zh) 双级行程截止阀
CN219013532U (zh) 一种阀门可活动的节流阀

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: 24902995

Country of ref document: EP

Kind code of ref document: A1