WO2024021964A1 - 电子膨胀阀组件、电子膨胀阀及制冷设备 - Google Patents

电子膨胀阀组件、电子膨胀阀及制冷设备 Download PDF

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Publication number
WO2024021964A1
WO2024021964A1 PCT/CN2023/102912 CN2023102912W WO2024021964A1 WO 2024021964 A1 WO2024021964 A1 WO 2024021964A1 CN 2023102912 W CN2023102912 W CN 2023102912W WO 2024021964 A1 WO2024021964 A1 WO 2024021964A1
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WO
WIPO (PCT)
Prior art keywords
electronic expansion
expansion valve
valve
hole
guide sleeve
Prior art date
Application number
PCT/CN2023/102912
Other languages
English (en)
French (fr)
Inventor
杨茂
任纬峰
曾庆军
Original Assignee
广东威灵电机制造有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 广东威灵电机制造有限公司 filed Critical 广东威灵电机制造有限公司
Publication of WO2024021964A1 publication Critical patent/WO2024021964A1/zh

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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
    • F16K3/22—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 sealing faces shaped as surfaces of solids of revolution
    • F16K3/24—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 sealing faces shaped as surfaces of solids of revolution with cylindrical valve members
    • F16K3/26—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 sealing faces shaped as surfaces of solids of revolution with cylindrical valve members with fluid passages in the valve member
    • F16K3/267—Combination of a sliding valve and a lift valve
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • F16K1/02—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with screw-spindle
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K27/00—Construction of housing; Use of materials therefor
    • F16K27/04—Construction of housing; Use of materials therefor of sliding 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
    • F16K27/04—Construction of housing; Use of materials therefor of sliding valves
    • F16K27/041—Construction of housing; Use of materials therefor of sliding valves cylindrical slide 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
    • 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
    • F16K3/22—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 sealing faces shaped as surfaces of solids of revolution
    • F16K3/24—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 sealing faces shaped as surfaces of solids of revolution with cylindrical valve members
    • F16K3/26—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 sealing faces shaped as surfaces of solids of revolution with cylindrical valve members with fluid passages in the valve member
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • 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
    • F16K3/30—Details
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • 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
    • F16K3/30—Details
    • F16K3/316—Guiding of the slide
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
    • F16K31/04—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
    • F16K31/04—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor
    • F16K31/047—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor characterised by mechanical means between the motor and the valve, e.g. lost motion means reducing backlash, clutches, brakes or return 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
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/44—Mechanical actuating means
    • F16K31/50—Mechanical actuating means with screw-spindle or internally threaded actuating 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
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/44—Mechanical actuating means
    • F16K31/50—Mechanical actuating means with screw-spindle or internally threaded actuating means
    • F16K31/508—Mechanical actuating means with screw-spindle or internally threaded actuating means the actuating element being rotatable, non-rising, and driving a non-rotatable axially-sliding element
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B41/00—Fluid-circulation arrangements
    • F25B41/30—Expansion means; Dispositions thereof
    • F25B41/31—Expansion valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B41/00—Fluid-circulation arrangements
    • F25B41/30—Expansion means; Dispositions thereof
    • F25B41/31—Expansion valves
    • F25B41/34—Expansion valves with the valve member being actuated by electric means, e.g. by piezoelectric actuators
    • F25B41/35—Expansion valves with the valve member being actuated by electric means, e.g. by piezoelectric actuators by rotary motors, e.g. by stepping motors

Definitions

  • the present application relates to the technical field of fluid control components, and in particular to an electronic expansion valve assembly, electronic expansion valve and refrigeration equipment.
  • an electronic expansion valve is an important component in the refrigeration system. It mainly plays the role of throttling, reducing pressure and regulating flow.
  • an electronic expansion valve includes a valve seat assembly, a nut assembly, a valve needle assembly, a magnetic rotor assembly and other components.
  • the valve seat assembly has a valve port. When the electronic expansion valve is working, it is driven by an energized coil surrounding the valve housing.
  • the magnetic rotor assembly rotates, thereby driving the valve needle assembly to move axially, thereby controlling the opening or closing of the valve port, thereby achieving the functions of throttling, reducing pressure and regulating flow.
  • the connecting seat and the guide sleeve in the existing electronic expansion valve are connected, the connecting seat and the guide sleeve are usually assembled together through assembly equipment, and then welded together using welding equipment.
  • the whole process requires two pieces of equipment. To achieve this, the process is cumbersome and takes a long time to weld the connecting seat and guide sleeve, resulting in low production efficiency.
  • the main purpose of this application is to propose an electronic expansion valve assembly, aiming to improve the production efficiency of the electronic expansion valve assembly.
  • this application proposes an electronic expansion valve assembly, which includes a connecting seat and a guide sleeve; the guide sleeve is riveted to the connecting seat.
  • connection base has a first through hole and a second through hole connected to the first through hole, and the lower end surface of the first through hole forms a riveting surface;
  • the guide sleeve includes a guide part , the guide portion extends into the second through hole and contacts the riveting surface through its own deformation.
  • the guide sleeve further includes a mounting part, the guide part is connected to the mounting part, and the outer diameter of the mounting part is not smaller than the outer diameter of the guide part.
  • the guide sleeve further includes a body part, the body part is connected to the mounting part, the upper end surface of the body part forms a first limiting part, and the first limiting part is connected to the mounting part.
  • the lower end surface of the connecting seat is in contact.
  • the difference between the outer diameter of the guide part and the outer diameter of the mounting part is D, and 2 mm ⁇ D ⁇ 0.005 mm.
  • the difference between the outer diameter of the guide part and the outer diameter of the mounting part is D, 0.5 mm ⁇ D ⁇ 0.005 mm.
  • the width of the riveting surface is M1
  • the guide part includes a first guide part located in the first through hole and a second guide part located in the second through hole, The first guide part is connected to the second guide part, and the height of the first guide part is H1, M1 ⁇ H1 ⁇ 0.2 M1.
  • connection base has a first through hole and a second through hole and a third through hole connected to the first through hole, and the upper end surface of the third through hole forms a second limiting portion.
  • the guide sleeve includes a mounting portion and a shoulder, the mounting portion is connected to the shoulder, the mounting portion extends into the second through hole, and the shoulder is disposed on the third through hole, so The upper end surface of the shoulder is in contact with the second limiting portion.
  • a riveting portion protrudes downward from the lower end of the connecting seat, and the riveting portion contacts the lower end surface of the shoulder through its own deformation.
  • the width of the lower end surface of the shoulder is M2, and the height of the riveted part is H2, M2 ⁇ H2 ⁇ 0.2 M2.
  • the connecting seat is made of stainless steel
  • the guide sleeve is made of aluminum alloy
  • the connecting seat is riveted to the guide sleeve.
  • the electronic expansion valve includes a valve seat and the electronic expansion valve assembly.
  • the electronic expansion valve assembly is installed on the valve seat.
  • the electronic expansion valve assembly includes a connecting seat and a guide sleeve; the guide sleeve is riveted to the connecting seat.
  • This application also proposes a refrigeration equipment, which includes the electronic expansion valve.
  • the electronic expansion valve includes a valve seat and the electronic expansion valve assembly, and the electronic expansion valve assembly is installed on the valve seat.
  • the electronic expansion valve assembly includes a connecting seat and a guide sleeve; the guide sleeve is riveted to the connecting seat.
  • the refrigeration equipment is an air conditioner, a freezer, a refrigerator or a heat pump water heater.
  • the electronic expansion valve assembly of the present application includes a connecting seat and a guide sleeve; the guide sleeve is riveted to the connecting seat.
  • the riveting process is less and takes a short time, which can improve the production efficiency of the electronic expansion valve assembly.
  • Figure 1 is a schematic structural diagram of an embodiment of the electronic expansion valve of the present application.
  • Figure 2 is a schematic structural diagram of the valve seat of the electronic expansion valve in Figure 1;
  • Figure 3 is a schematic structural diagram of an embodiment of the electronic expansion valve assembly of the present application.
  • Figure 4 is a schematic structural diagram of the structure in Figure 3 before riveting
  • Figure 5 is an enlarged view of point A in Figure 4.
  • Figure 6 is a schematic structural diagram of the structure in Figure 3 after riveting
  • Figure 7 is a schematic structural diagram of another embodiment of the electronic expansion valve assembly of the present application.
  • Figure 8 is a schematic structural diagram of the structure in Figure 7 before riveting
  • Figure 9 is a schematic structural diagram of the structure in Figure 7 after riveting.
  • the electronic expansion valve is an important component in the refrigeration system and mainly plays the role of throttling, reducing pressure and regulating flow.
  • Existing electronic expansion valves include a valve seat, a nut assembly and a valve needle assembly threaded with the nut assembly.
  • the magnetic rotor assembly is used to drive the valve needle assembly to produce axial movement to adjust the opening of the valve port, thereby achieving medium flow control.
  • the connecting seat and the guide sleeve are arranged separately, and the connecting seat and the guide sleeve are connected by riveting to improve the assembly efficiency between the two.
  • the electronic expansion valve assembly of the present application can be applied to an air conditioning system.
  • the fluid medium flowing through the electronic expansion valve is the refrigerant used for heat and cold exchange in the air conditioning system.
  • the electronic expansion valve is installed at the evaporator inlet of the air conditioning system.
  • the electronic expansion valve serves as the dividing element between the high-pressure side and the low-pressure side of the air-conditioning system, throttling and depressurizing the high-pressure liquid refrigerant from the liquid storage dryer and other devices, thereby Adjust and control the amount of liquid refrigerant entering the evaporator so that the amount of liquid refrigerant can adapt to the requirements of the external refrigeration load.
  • the electronic expansion valve is applied to other types of refrigeration equipment.
  • the fluid medium flowing through the electronic expansion valve can also be other fluid media besides refrigerant, as long as the electronic expansion valve can achieve throttling and pressure reduction of the fluid medium. That’s it, there are no specific restrictions on this.
  • the electronic expansion valve assembly includes a connecting seat 200 and a guide sleeve 300 ; the guide sleeve 300 is riveted to the connecting seat 200 .
  • the electronic expansion valve assembly is used to be installed on the valve seat 100 of the electronic expansion valve 10.
  • One end of the valve seat 100 is formed with a port 110, and a valve chamber 120 connected to the port 110 is formed in the valve seat 100.
  • the connecting seat 200 is provided at the port 110;
  • the guide sleeve 300 is provided at the valve chamber 120, and the valve seat 100 can be a valve seat specially used to install the electronic expansion valve assembly to form a separate
  • the electronic expansion valve 10 or the valve seat 100 can also be the valve seat 100 of an integrated module.
  • the electronic expansion valve assembly of the present application and other structural components can be installed on the valve seat 100 of the integrated module.
  • the valve seat 100 can be made of stainless steel, aluminum, or other materials, and there is no specific limitation on this.
  • the shape of the valve seat 100 may be cylindrical, square or other special shapes.
  • a port 110 is formed on one end of the valve seat 100.
  • the port 110 is specifically a stepped hole.
  • the connecting seat 200 is fixedly installed in the stepped hole. To facilitate later disassembly and assembly, the connecting seat 200 can be connected to the stepped hole. inner wall threaded connection.
  • the valve seat 100 also has a valve cavity 120, and the valve cavity 120 is connected with the port 110.
  • a first interface 130 and a second interface 140 can also be provided on the valve seat 100. The first interface 130 and the second interface 140 is used to connect pipelines.
  • the first interface 130 and the second interface 140 can be connected through the valve cavity 120, so that the fluid medium can enter from the first interface 130 and flow out from the second interface 140 through the valve cavity 120; conversely, the fluid medium can also It enters from the second interface 140 and flows out from the first interface 130 through the valve chamber 120. That is, the fluid medium can flow into the valve chamber 120 from any one of the first interface 130 or the second interface 140 and flow out from the other port. . In this application, the fluid medium flows into the valve chamber 120 from the first interface 130 and flows out from the second interface 140 .
  • the guide sleeve 300 is arranged in the valve cavity 120 and is located below the connecting seat 200.
  • the outer diameter of the connecting seat 200 in this application is larger and the outer diameter of the guide sleeve 300 is smaller.
  • the two are separated and the guide sleeve 300 is arranged separately.
  • the sleeve 300 and the connecting base 200 are riveted together.
  • the technical solution of the present application has a small machining allowance and a short processing time when the guide sleeve 300 and the connecting seat 200 are processed separately.
  • the machining allowance is small, which can further reduce the loss of raw materials and reduce costs; when the guide sleeve 300 and the connecting seat 200 are processed separately, the degree of wear of the cutting tools is also small, and frequent replacement is not required. Tools, improving the service life of the tools and further reducing costs.
  • the guide sleeve 300 is riveted to the connecting seat 200.
  • the guide sleeve 300 and the connecting seat 200 are connected by riveting. After riveting, the guide sleeve 300 and the connecting seat 200 are connected.
  • the deformation of the connection is small, and the riveting method has low environmental requirements, and the riveted parts are not easy to loosen.
  • the connection base 200 and the guide sleeve 300 are usually assembled together by assembly equipment, and then welded together by welding equipment. The whole process requires two machines. equipment to achieve.
  • the guide sleeve 300 and the connecting seat 200 are connected by riveting, which requires fewer processes and can be completed with only one piece of equipment and takes a shorter time, which can improve the production efficiency of the electronic expansion valve assembly.
  • the guide sleeve 300 and the connecting seat 200 are connected by riveting. At this time, the connecting seat 200 is made of stainless steel.
  • the guide sleeve 300 can be made of aluminum alloy.
  • the aluminum alloy material has It has the advantages of light weight, high strength, good sealing performance, corrosion resistance, and relatively low cost. Using the guide sleeve 300 made of aluminum alloy can achieve lightweight and further reduce the production cost of the electronic expansion valve assembly.
  • the guide sleeve 300 and the connection seat 200 can also be connected by welding, snapping or other connection methods, and there is no specific limitation on this.
  • the electronic expansion valve assembly of this application includes a connecting seat 200 and a guide sleeve 300; the guide sleeve 300 is riveted to the connecting seat 200.
  • the riveting process is less and takes a short time, which can improve the production efficiency of the electronic expansion valve assembly.
  • connection base 200 has a first through hole 210 and a second through hole 220 connected with the first through hole 210 .
  • the lower end surface forms a riveting surface 211;
  • the guide sleeve 300 includes a guide portion 310, which extends into the second through hole 220 and contacts the riveting surface 211 through its own deformation.
  • the outer diameter of the first through hole 210 is larger than the outer diameter of the second through hole 220.
  • the connection between the first through hole 210 and the second through hole 220 is (i.e., the lower end surface of the first through hole 210) is formed with a riveting surface 211, the guide portion 310 extends into the second through hole 220, and extends from the second through hole 220 into the first through hole 210, and then passes through the riveting equipment
  • the edge of the guide portion 310 is deformed to contact the riveting surface 211 to firmly connect the guide sleeve 300 and the connection base 200 together.
  • the guide sleeve 300 further includes a mounting part 320 , the guide part 310 is connected to the mounting part 320 , and the outer diameter of the mounting part 320 is not smaller than the outer diameter of the guide part 310 .
  • the guide part 310 is connected to an end of the installation part 320 close to the port 110 .
  • the outer diameter of the installation part 320 is larger than the outer diameter of the guide part 310 , and the installation part 320 is tightly connected to the second through hole 220 .
  • the guide sleeve 300 When the guide sleeve 300 is assembled with the connection base 200, since the outer diameter of the guide part 310 is smaller than the outer diameter of the mounting part 320, the guide part 310 is first pressed into the second through hole 220, and then the mounting part 320 is pressed into the second through hole 220. In the second through hole 220 , the guide portion 310 can guide the assembly of the guide sleeve 300 to facilitate pressing the guide sleeve 300 into the second through hole 220 .
  • the guide sleeve 300 also includes a body part 330, which is connected to the mounting part 320.
  • the upper end surface of the body part 330 forms a first limiting part 331, and the first limiting part 331 is connected to the mounting part 320.
  • the lower end surface of the connecting seat 200 is in contact with each other.
  • the first limiting portion 331 can limit the upper end of the guide sleeve 300 to achieve fixation of the guide sleeve 300 and prevent the installation portion 320 of the guide sleeve 300 from being excessively pressed into the second through hole 220 .
  • the difference between the outer diameter of the guide part 310 and the outer diameter of the mounting part 320 is D, and 2 mm ⁇ D ⁇ 0.005 mm.
  • the difference between the outer diameter of the guide part 310 and the outer diameter of the mounting part 320 is D, 0.5 mm ⁇ D ⁇ 0.005 mm. So that the guide part 310 has a better guiding effect.
  • the width of the riveting surface 211 is M1
  • the guide portion 310 includes a first guide portion 311 located in the first through hole 210 and a first guide portion 311 located in the second through hole 210.
  • the second guide part 312 in 220, the first guide part 311 and the second guide part 312 are connected, the height of the first guide part 311 is H1, M1 ⁇ H1 ⁇ 0.2 M1.
  • the guide portion 310 should be at least partially located on the second through hole 220 . In a through hole 210, this part can be deformed to contact the riveting surface 211.
  • the guide part 310 includes a first guide part 311 located in the first through hole 210 and a second guide part 312 located in the second through hole 220. The first guide part 311 is deformed. Since the second guide part 311 is deformed, A guide portion 311 needs to be deformed to contact the riveting surface 211.
  • the height H1 of the first guide portion 311 should satisfy M1 ⁇ H1 ⁇ 0.2M1, so that the first guide portion 311 can contact the riveting surface 211. . After the first guide part 311 is in contact with the riveting surface 211 , the first guide part 311 is also in contact with the inner wall of the first through hole 210 to further enhance the stability of the connection between the guide sleeve 300 and the connection base 200 .
  • connection base 200 has a first through hole 210 and a second through hole 220 and a third through hole 230 connected with the first through hole 210 .
  • the upper end surface of the third through hole 230 forms a second limiting portion 231;
  • the guide sleeve 300 includes a mounting portion 320 and a shoulder 340.
  • the mounting portion 320 is connected to the shoulder 340, and the mounting portion 320 extends into the second through hole 220 , the shoulder 340 is disposed in the third through hole 230 , and the upper end surface of the shoulder 340 is in contact with the second limiting portion 231 .
  • the guide sleeve 300 is riveted to the lower end of the connecting seat 200 without extending into the first through hole 210 to abut the riveting surface 211 .
  • the second limiting portion 231 is in contact with the upper end surface of the shoulder 340, and the second limiting portion 231 can limit the upper end of the shoulder 340 to fix the guide sleeve 300 and avoid over-pressure of the guide sleeve 300. Installed into the second through hole 220.
  • a rivet portion 260 protrudes downward from the lower end of the connecting base 200 .
  • the rivet portion 260 contacts the lower end surface of the shoulder 340 through its own deformation.
  • the riveting of the guide sleeve 300 and the connecting seat 200 can be achieved by the riveting portion 260 contacting the lower end surface of the shoulder 340 through its own deformation.
  • the guide sleeve 300 is riveted to the lower end of the connecting seat 200, and There is no need to extend into the first through hole 210 to contact the riveting surface 211, which is convenient and quick.
  • the riveting part 260 may be provided at the lower end of the connection base 200 and close to the third through hole 230 .
  • the riveting portion 260 is located at the periphery of the third through hole 230 and extends downward from the lower end of the connecting base 200 . After the riveting part 260 is in contact with the lower end surface of the shoulder 340 , the rivet part 260 is also in contact with the outer wall surface of the guide sleeve 300 to further enhance the stability of the connection between the guide sleeve 300 and the connecting seat 200 .
  • the width of the lower end surface of the shoulder 340 is M2, and the height of the riveted portion 260 is H2, M2 ⁇ H2 ⁇ 0.2M2. Since the riveting of the guide sleeve 300 and the connecting seat 200 is achieved by the riveting part 260 contacting the lower end surface of the shoulder 340 through its own deformation, the height H2 of the riveting part 260 should satisfy M2 ⁇ H2 ⁇ 0.2 M2, where The height of the riveted portion 260 is less than or equal to the width of the lower end surface of the shoulder 340 so that interference occurs when the riveted portion 260 deforms and contacts the lower end surface of the shoulder 340 .
  • the connecting seat 200 is made of stainless steel
  • the guide sleeve 300 is made of aluminum alloy
  • the connecting seat 200 and the guide sleeve 300 are riveted.
  • the guide sleeve 300 and the connecting seat 200 are connected by riveting.
  • the connecting seat 200 is made of stainless steel.
  • the guide sleeve 300 can be made of aluminum alloy.
  • the aluminum alloy material has It has the advantages of light weight, high strength, good sealing performance, corrosion resistance, and relatively low cost. Using the guide sleeve 300 made of aluminum alloy can achieve lightweight and further reduce the production cost of the electronic expansion valve assembly.
  • the connection base 200 includes a positioning section 240 and an extension section 250 connected to the positioning section 240.
  • the positioning section 240 is provided at the port 110, so The extension section 250 extends into the valve cavity 120 , and the outer wall of the positioning section 240 is threadedly connected to the inner wall of the port 110 .
  • the positioning section 240 has external threads, and the inner wall surface of the port 110 has internal threads.
  • the positioning section 240 is threadedly connected to the inner wall surface of the port 110 to facilitate the disassembly and assembly of the connection seat 200 and the valve seat 100 .
  • the electronic expansion valve assembly further includes a valve seat 400 and a valve needle assembly 500.
  • the valve seat 400 is provided on the guide sleeve 300.
  • the valve seat 400 has Valve port 410, the valve chamber 120 can be connected through the valve port 410;
  • the valve needle assembly 500 is movably provided on the guide sleeve 300,
  • the valve needle assembly 500 includes a valve stem 510 and a valve stem 510.
  • the valve head 520 is connected to the stem 510.
  • the valve head 520 is movably inserted into the valve port 410.
  • the valve stem 510 can reciprocate along the axial direction of the valve port 410 to drive the valve head. 520 opens or closes the valve port 410.
  • the guide sleeve 300 has a medium flow chamber 350 and an installation port 360 .
  • the medium flow chamber 350 is connected to the valve chamber 120
  • the valve chamber 120 is connected to the first interface 130 .
  • the valve seat 400 is installed at the installation port 360 and is sealingly connected to the guide sleeve 300.
  • the valve seat 400 has a valve port 410.
  • the valve port 410 is connected to the second interface 140.
  • the medium flow chamber 350 can be connected to the valve port 410. Connected.
  • the fluid medium will first enter the valve chamber 120 from the first interface 130, then enter the medium flow chamber 350 through the valve chamber 120, and then flow out from the valve port 410 in the medium flow chamber 350 and flow out. Finally, it flows out through the second interface 140.
  • the first interface 130 and the second interface 140 are used to connect pipelines.
  • the fluid medium can flow in from any one of the first port 130 or the second port 140 and flow out from the other port, and there is no specific limitation on this.
  • the valve needle assembly 500 includes a valve stem 510 and a valve head 520 connected to the valve stem 510.
  • the valve port 410 is connected to the second interface 140, and the valve port 410 is used for the valve needle assembly 500.
  • the valve head 520 is inserted, thereby blocking the fluid medium in the electronic expansion valve 10 from flowing out through the valve port 410 .
  • the valve head 520 of the valve needle assembly 500 closes the valve port 410, that is, when the medium flow chamber 350 and the valve port 410 are disconnected, the electronic expansion valve 10 is closed. At this time, the fluid medium cannot flow from the first interface 130 to the second interface 140.
  • valve head 520 of the valve needle assembly 500 releases the seal on the valve port 410, that is, when the medium flow chamber 350 and the valve port 410 are connected to each other, the electronic expansion valve 10 is opened. At this time, the fluid medium can flow from the first interface 130 to the third port. Two interfaces 140.
  • the inner wall of the valve port 410 forms a flow adjustment surface, and the flow adjustment surface extends downwards.
  • the valve head 520 is cylindrically arranged. When the valve head 520 contacts the flow adjustment surface, the valve head 520 is completely closed.
  • Valve port 410 when the valve head 520 moves upward, there is a gap between the valve head 520 and the flow adjustment surface, and the gap will continue to increase as the valve head 520 moves upward, and the fluid medium will flow through the valve port from the gap. 410 and flows out.
  • the valve head 520 controls the flow rate of the fluid medium in the electronic expansion valve 10 by controlling the size of the gap between the valve head 520 and the flow adjustment surface.
  • the electronic expansion valve assembly further includes a nut assembly 600 and a rotor assembly 700.
  • the nut assembly 600 is threadedly connected to the valve needle assembly 500.
  • the rotor assembly 700 is sleeved on the valve needle assembly 500, and can drive the valve needle assembly 500 to rotate relative to the nut assembly 600, so that the valve stem 510 reciprocates along the axial direction of the valve port 410 to drive
  • the valve head 520 opens or closes the valve port 410 .
  • the nut assembly 600 is fixedly connected to the connecting seat 200.
  • the nut assembly 600 has a nut.
  • the nut is threadedly connected to the valve stem 510 of the valve needle assembly 500.
  • the rotor assembly 700 is connected to the valve stem 510. connection, due to the threaded matching relationship between the nut and the valve stem 510, the rotation of the rotor assembly 700 can drive the valve stem 510 to rotate, thereby causing the valve stem 510 to telescopically move along the axis of the valve port 410, thereby realizing the valve stem. 510 drives the movement process of the valve head 520 to open or close the valve port 410.
  • the working principle of the electronic expansion valve 10 is as follows:
  • the stator assembly generates a magnetic field after being energized.
  • the rotor made of magnetic material rotates under the drive of the magnetic field.
  • the rotor is fixedly connected to the valve stem 510.
  • the rotation of the rotor drives the valve stem 510 to rotate.
  • a nut valve stem 510 is formed between the valve stem 510 and the nut.
  • the nut assembly 600 is fixedly installed on the connecting seat 200, so the rotation of the valve stem 510 relative to the nut will drive the valve stem 510 to telescopically move relative to the nut, thereby realizing the stator assembly driving the rotor assembly 700 to move, and the rotor assembly 700 driving the valve.
  • the working process of needle assembly 500 movement is provided.
  • the valve head 520 moves toward the valve port 410 driven by the valve stem 510.
  • the valve head 520 closes the valve port 410, that is, when the medium flow chamber 350 and the valve port 410 are disconnected, the electronic expansion valve 10 is closed.
  • the fluid medium It cannot flow from the first interface 130 to the second interface 140;
  • the valve head 520 releases the seal on the valve port 410, that is, when the medium flow chamber 350 and the valve port 410 are connected to each other, the electronic expansion valve 10 opens, and at this time the fluid medium can flow from The first interface 130 flows to the second interface 140 . Since the opening diameter of the valve port 410 in the electronic expansion valve 10 is relatively small, the flow rate of the fluid medium is reduced, thereby realizing the process of throttling and depressurizing the fluid medium by the electronic expansion valve 10 .
  • the electronic expansion valve assembly further includes a valve housing 800.
  • the valve housing 800 is a cylindrical structure with one end open.
  • the valve housing 800 and the connecting seat 200 Connect and cover the valve needle assembly 500 , the nut assembly 600 and the rotor assembly 700 .
  • the valve housing 800 is generally cylindrical in design, and the valve housing 800 and the connecting seat 200 can be fixed by welding.
  • a receiving cavity is formed inside the valve housing 800.
  • the receiving cavity also houses a rotor assembly 700.
  • the rotor assembly 700 is connected to the valve stem 510, and the valve stem 510 is driven by the rotor assembly 700.
  • the valve head 520 is rotated downward to open or close the valve port 410 .
  • the valve housing 800 protects the internal components of the electronic expansion valve assembly. When the electronic expansion valve 10 is working, the fluid medium can flow into the accommodation cavity.
  • the electronic expansion valve 10 includes a valve seat 100 and the above-mentioned electronic expansion valve assembly.
  • the electronic expansion valve assembly is installed on the valve seat 100.
  • the specific structure of the electronic expansion valve assembly refers to the above-mentioned embodiments. Since the electronic expansion valve 10 adopts all the technical solutions of all the above-mentioned embodiments, it at least has all the beneficial effects brought by the technical solutions of the above-mentioned embodiments. Herein I won’t go into details one by one.
  • This application also proposes a refrigeration equipment, which includes the above-mentioned electronic expansion valve 10, and the electronic expansion valve 10 includes the above-mentioned electronic expansion valve assembly.
  • the specific structure of the electronic expansion valve assembly refers to the above-mentioned embodiments. Since this refrigeration equipment adopts all the technical solutions of all the above-mentioned embodiments, it has at least all the beneficial effects brought by the technical solutions of the above-mentioned embodiments, which will not be discussed here. Let’s go over them one by one.
  • the refrigeration equipment is an air conditioner, a freezer, a refrigerator or a heat pump water heater, etc.

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Abstract

一种电子膨胀阀组件、电子膨胀阀及制冷设备，其中，所述电子膨胀阀组件包括连接座(200)以及导向套(300)；所述导向套(300)与所述连接座(200)铆接。该电子膨胀阀组件，能够提高电子膨胀阀组件的生产效率。

Description

电子膨胀阀组件、电子膨胀阀及制冷设备
相关申请
本申请要求于2022年7月27日申请的、申请号为202210902006.2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
本申请涉及流体控制部件技术领域，特别涉及一种电子膨胀阀组件、电子膨胀阀及制冷设备。
 背景技术
电子膨胀阀是制冷***中的一个重要部件，主要起着节流降压和调节流量的作用。相关技术中，电子膨胀阀包括阀座组件、螺母组件、阀针组件和磁转子组件等部件，阀座组件开设有阀口，当电子膨胀阀工作时，通过环绕于阀壳体外的通电线圈驱动磁转子组件旋转，从而带动阀针组件轴向移动，进而控制阀口的开或关，以此来实现节流降压和调节流量的作用。
现有的电子膨胀阀中的连接座和导向套连接时，通常是先通过装配设备将连接座和导向套装配在一起，然后在通过焊接设备将其焊接在一起，整个过程需要两台设备来实现，过程较繁琐，且对连接座和导向套焊接时时间较长，从而导致生产效率低。
 技术解决方案
本申请的主要目的是提出一种电子膨胀阀组件，旨在提高电子膨胀阀组件的生产效率。
为实现上述目的，本申请提出的电子膨胀阀组件，所述电子膨胀阀组件包括连接座以及导向套；所述导向套与所述连接座铆接。
在一实施例中，所述连接座具有第一通孔和与所述第一通孔连通的第二通孔，所述第一通孔的下端面形成铆接面；所述导向套包括导向部，所述导向部伸入所述第二通孔并通过自身形变与所述铆接面抵接。
在一实施例中，所述导向套还包括安装部，所述导向部与所述安装部连接，所述安装部的外径不小于所述导向部的外径。
在一实施例中，所述导向套还包括本体部，所述本体部与所述安装部连接，所述本体部的上端面形成第一限位部，所述第一限位部与所述连接座的下端面抵接。
在一实施例中，所述导向部的外径与所述安装部的外径之间的差值为D，2 mm≥D≥0.005 mm。
在一实施例中，所述导向部的外径与所述安装部的外径之间的差值为D，0.5 mm≥D≥0.005 mm。
在一实施例中，所述铆接面的宽度为M1，所述导向部包括位于所述第一通孔内的第一导向部和位于所述第二通孔内的第二导向部，所述第一导向部和所述第二导向部连接，所述第一导向部的高度为H1，M1≥H1≥0.2 M1。
在一实施例中，所述连接座具有第一通孔和与所述第一通孔连通的第二通孔、第三通孔，所述第三通孔的上端面形成第二限位部；所述导向套包括安装部和轴肩，所述安装部与所述轴肩连接，所述安装部伸入所述第二通孔，所述轴肩设置于所述第三通孔，所述轴肩的上端面与所述第二限位部抵接。
在一实施例中，所述连接座的下端向下凸设有铆接部，所述铆接部通过自身形变与所述轴肩的下端面抵接。
在一实施例中，所述轴肩的下端面的宽度为M2，所述铆接部的高度为H2，M2≥H2≥0.2 M2。
在一实施例中，所述连接座的材质为不锈钢，所述导向套的材质为铝合金，所述连接座与所述导向套铆接。
本申请还提出一种电子膨胀阀，所述电子膨胀阀包括阀座和所述电子膨胀阀组件，所述电子膨胀阀组件安装于所述阀座。所述电子膨胀阀组件包括连接座以及导向套；所述导向套与所述连接座铆接。
本申请还提出一种制冷设备，所述制冷设备包括所述电子膨胀阀。所述电子膨胀阀包括阀座和所述电子膨胀阀组件，所述电子膨胀阀组件安装于所述阀座。所述电子膨胀阀组件包括连接座以及导向套；所述导向套与所述连接座铆接。
在一实施例中，所述制冷设备为空调器、冷冻机、冰箱或热泵热水器。
本申请的电子膨胀阀组件包括连接座以及导向套；所述导向套与所述连接座铆接。铆接的工序少，且用时短，如此，可以提高电子膨胀阀组件的生产效率。
 附图说明
为了更清楚地说明本申请实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本申请的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图示出的结构获得其他的附图。
图1为本申请电子膨胀阀一实施例的结构示意图；
图2为图1中电子膨胀阀的阀座的结构示意图；
图3为本申请电子膨胀阀组件一实施例的结构示意图；
图4为图3中的结构铆接前的结构示意图；
图5为图4中A处的放大图；
图6为图3中的结构铆接后的结构示意图；
图7为本申请电子膨胀阀组件另一实施例的结构示意图；
图8为图7中的结构铆接前的结构示意图；
图9为图7中的结构铆接后的结构示意图。
附图标号说明：
标号 名称 标号 名称
10 电子膨胀阀 311 第一导向部
100 阀座 312 第二导向部
110 端口 320 安装部
120 阀腔 330 本体部
130 第一接口 331 第一限位部
140 第二接口 340 轴肩
200 连接座 350 介质流通腔
210 第一通孔 360 安装口
211 铆接面 400 阀口座
220 第二通孔 410 阀口
230 第三通孔 500 阀针组件
231 第二限位部 510 阀杆
240 定位段 520 阀头
250 延伸段 600 螺母组件
260 铆接部 700 转子组件
300 导向套 800 阀壳体
310 导向部 810 容纳腔
本申请目的的实现、功能特点及优点将结合实施例，参照附图做进一步说明。
 本发明的实施方式
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的一部分实施例，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。
需要说明，若本申请实施例中有涉及方向性指示（诸如上、下、左、右、前、后……），则该方向性指示仅用于解释在某一特定姿态（如附图所示）下各部件之间的相对位置关系、运动情况等，如果该特定姿态发生改变时，则该方向性指示也相应地随之改变。
另外，若本申请实施例中有涉及“第一”、“第二”等的描述，则该“第一”、“第二”等的描述仅用于描述目的，而不能理解为指示或暗示其相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示或者隐含地包括至少一个该特征。另外，若全文中出现的“和/或”的含义为，包括三个并列的方案，以“A和/或B”为例，包括A方案，或B方案，或A和B同时满足的方案。另外，各个实施例之间的技术方案可以相互结合，但是必须是以本领域普通技术人员能够实现为基础，当技术方案的结合出现相互矛盾或无法实现时应当认为这种技术方案的结合不存在，也不在本申请要求的保护范围之内。
本申请提出一种电子膨胀阀组件的实施例，电子膨胀阀是制冷***中的一个重要部件，主要起着节流降压和调节流量的作用。现有电子膨胀阀包括阀座、螺母组件和与螺母组件螺纹配合的阀针组件，利用磁转子组件驱动阀针组件产生轴向运动，调节阀口的开度，从而实现介质的流通控制。本申请的电子膨胀阀组件，将连接座和导向套分体设置，并将连接座和导向套采用铆接的方式进行连接，以提高两者之间的装配效率。
本申请的电子膨胀阀组件，可以应用到空调***中，流经电子膨胀阀的流体介质为空调***中用以进行冷热交换的冷媒。此时，电子膨胀阀安装于空调***的蒸发器入口处，电子膨胀阀作为空调***高压侧与低压侧的分界元件，将来自贮液干燥器等器件中的高压液态冷媒节流降压，从而调节和控制进入蒸发器中的液态冷媒的剂量，使得液态冷媒的剂量能够适应外界制冷负载的要求。或者，电子膨胀阀应用到其他类型的制冷设备中，流经电子膨胀阀的流体介质还可以是除冷媒之外的其他流体介质，只要电子膨胀阀能够实现对该种流体介质的节流降压即可，对此不作具体限制。
请参阅图1至图9，在本申请的一实施例中，所述电子膨胀阀组件包括连接座200以及导向套300；所述导向套300与所述连接座200铆接。
所述电子膨胀阀组件用于安装在电子膨胀阀10的阀座100上，所述阀座100的一端形成有端口110，所述阀座100内形成有与所述端口110连通的阀腔120；所述连接座200设置于所述端口110；所述导向套300设置于所述阀腔120，所述阀座100可以是专门用来安装该电子膨胀阀组件的阀座，以组成一个单独的电子膨胀阀10，或者，该阀座100还可以是集成化模块的阀座100，所述集成化模块的阀座100上可以安装本申请的电子膨胀阀组件，以及其他结构的组件。所述阀座100可以由不锈钢材质加工制造，也可以由铝材质加工制造，或者采用其他材质加工制造，对此不作具体限制。所述阀座100的形状可以呈圆柱形、方形或其他异形设置。所述阀座100的一端形成有端口110，所述端口110具体为一台阶孔，连接座200固定安装在台阶孔内，为便于后期的拆装，所述连接座200可以和所述台阶孔的内壁螺纹连接。所述阀座100内还具有阀腔120，所述阀腔120与端口110连通，在阀座100上还可以设置第一接口130和第二接口140，所述第一接口130和第二接口140用来连接管道，第一接口130和第二接口140可通过阀腔120连通，使得流体介质可以从第一接口130进入，经过阀腔120从第二接口140流出；反之，流体介质也可以从第二接口140进入，经过阀腔120从第一接口130流出，即流体介质可从第一接口130或第二接口140中的任意一个口流入到阀腔120中，并从另一个口流出。在本申请中，流体介质从第一接口130流入到阀腔120中，并从第二接口140流出。
导向套300设置于所述阀腔120，并位于连接座200的下方，本申请的连接座200的外径较大，导向套300的外径较小，将两者分体设置，并将导向套300和连接座200铆接在一起。相比于传统的将导向套300和连接座200一体设置的方案，本申请的技术方案，在对导向套300和连接座200分别进行加工时，加工余量小，且加工的时间短，可以提高生产效率；同时，加工余量小，也可以进一步的减少原材料的损耗，降低成本；在对导向套300和连接座200分别进行加工时，对刀具的磨损程度也较小，不需要经常更换刀具，提高了刀具的使用寿命，进一步降低了成本。
请参阅图6和图9，所述导向套300与所述连接座200铆接，所述导向套300和所述连接座200通过铆接的方式进行连接，铆接后其导向套300与连接座200的连接处的变形小，且铆接方式对环境的要求低，铆接后的零部件不易松动。将所述导向套300与所述连接座200焊接时，其通常是先通过装配设备将连接座200和导向套300装配在一起，然后在通过焊接设备将其焊接在一起，整个过程需要两台设备来实现。相比于焊接的方式，将导向套300和连接座200采用铆接的方式进行连接，工序少，只通过一台设备即可完成，且用时较短，可以提高电子膨胀阀组件的生产效率。
将所述导向套300与所述连接座200通过铆接的方式进行连接，此时所述连接座200的材质为不锈钢材质，所述导向套300的材质可以设置为铝合金材质，铝合金材质具有质量轻，强度高的优点，其密闭性能好，且耐腐蚀，成本也相对较低。使用铝合金材质的导向套300，可以实现轻量化，且还可以进一步降低电子膨胀阀组件的生产成本。
当然，在其他实施例中，所述导向套300和所述连接座200还可以通过焊接、卡接或其他连接方式进行连接，对此不作具体限制。
本申请的电子膨胀阀组件包括连接座200以及导向套300；所述导向套300与所述连接座200铆接。铆接的工序少，且用时短，如此，可以提高电子膨胀阀组件的生产效率。
请参阅图3至图6，在一实施例中，所述连接座200具有第一通孔210和与所述第一通孔210连通的第二通孔220，所述第一通孔210的下端面形成铆接面211；所述导向套300包括导向部310，所述导向部310伸入所述第二通孔220并通过自身形变与所述铆接面211抵接。
所述第一通孔210的外径大于第二通孔220的外径，当将导向套300与连接座200进行铆接连接时，所述第一通孔210和第二通孔220的连接处（即第一通孔210的下端面）形成有铆接面211，导向部310伸入第二通孔220中，并由第二通孔220伸入至第一通孔210中，然后通过铆接设备使导向部310的边缘变形至与铆接面211抵接，以将导向套300与连接座200固定连接在一起。
所述导向套300还包括安装部320，所述导向部310与所述安装部320连接，所述安装部320的外径不小于所述导向部310的外径。导向部310与安装部320靠近端口110的一端连接，安装部320的外径要大于导向部310的外径，且安装部320与第二通孔220紧配连接。当将导向套300与连接座200进行装配时，由于导向部310的外径小于安装部320的外径，导向部310先被按压入第二通孔220中，然后安装部320被按压入第二通孔220中，其中，导向部310可以对导向套300的装配起到导向的作用，便于将导向套300按压入第二通孔220中。
所述导向套300还包括本体部330，所述本体部330与所述安装部320连接，所述本体部330的上端面形成第一限位部331，所述第一限位部331与所述连接座200的下端面抵接。所述第一限位部331可以对导向套300的上端限位，以实现导向套300的固定，避免导向套300的安装部320过度压装至第二通孔220内。
请参阅图5，在一实施例中，所述导向部310的外径与所述安装部320的外径之间的差值为D，2 mm≥D≥0.005 mm。所述导向部310的外径与所述安装部320的外径之间的差值为D，0.5 mm≥D≥0.005 mm。以使得导向部310具有较好的导向效果。
请参阅图4，在一实施例中，所述铆接面211的宽度为M1，所述导向部310包括位于所述第一通孔210内的第一导向部311和位于所述第二通孔220内的第二导向部312，所述第一导向部311和所述第二导向部312连接，所述第一导向部311的高度为H1，M1≥H1≥0.2 M1。
由于导向套300与连接座200的铆接实际是通过导向部310伸入所述第二通孔220并通过自身形变与所述铆接面211抵接来实现的，因此导向部310应当至少部分位于第一通孔210内，该部分可以发生形变以与铆接面211抵接。所述导向部310包括位于所述第一通孔210内的第一导向部311和位于所述第二通孔220内的第二导向部312，发生形变的为第一导向部311，由于第一导向部311需要发生形变以与所述铆接面211抵接，所述第一导向部311的高度H1应当满足M1≥H1≥0.2M1，以使得第一导向部311可以与铆接面211抵接。所述第一导向部311与所述铆接面211抵接后，第一导向部311还与第一通孔210的内壁抵接，以进一步增强导向套300与连接座200之间连接的稳固性。
请参阅图7至图9，在另一实施例中，所述连接座200具有第一通孔210和与所述第一通孔210连通的第二通孔220、第三通孔230，所述第三通孔230的上端面形成第二限位部231；所述导向套300包括安装部320和轴肩340，所述安装部320与所述轴肩340连接，所述安装部320伸入所述第二通孔220，所述轴肩340设置于所述第三通孔230，所述轴肩340的上端面与所述第二限位部231抵接。在该实施例中，导向套300与连接座200的下端铆接，而不需要伸入至第一通孔210内与铆接面211抵接。所述第二限位部231与所述轴肩340的上端面抵接，第二限位部231可以对轴肩340的上端限位，以实现导向套300的固定，避免导向套300过度压装至第二通孔220内。
请参阅图7至图9，在一实施例中，所述连接座200的下端向下凸设有铆接部260，所述铆接部260通过自身形变与所述轴肩340的下端面抵接。导向套300与连接座200的铆接可以是铆接部260通过自身形变与所述轴肩340的下端面抵接来实现的，在该实施例中，导向套300与连接座200的下端铆接，而不需要伸入至第一通孔210内与铆接面211抵接，方便快捷。所述铆接部260可以开设在连接座200的下端，并靠近第三通孔230处。所述铆接部260位于所述第三通孔230的周缘，并自连接座200的下端向下延伸。所述铆接部260与所述轴肩340的下端面抵接后，铆接部260还与导向套300的外壁面抵接，以进一步增强导向套300与连接座200之间连接的稳固性。
请参阅图8，在一实施例中，所述轴肩340的下端面的宽度为M2，所述铆接部260的高度为H2，M2≥H2≥0.2M2。由于导向套300与连接座200的铆接是铆接部260通过自身形变与所述轴肩340的下端面抵接来实现的，所述铆接部260的高度H2应当满足M2≥H2≥0.2M2，其中，铆接部260的高度小于或等于轴肩340的下端面的宽度是为了铆接部260变形后与轴肩340的下端面抵接时发生干涉。
基于上述任意一实施例，所述连接座200的材质为不锈钢，所述导向套300的材质为铝合金，所述连接座200与所述导向套300铆接。将所述导向套300与所述连接座200通过铆接的方式进行连接，此时所述连接座200的材质为不锈钢材质，所述导向套300的材质可以设置为铝合金材质，铝合金材质具有质量轻，强度高的优点，其密闭性能好，且耐腐蚀，成本也相对较低。使用铝合金材质的导向套300，可以实现轻量化，且还可以进一步降低电子膨胀阀组件的生产成本。
请参阅图3和图7，基于上述任意一实施例，所述连接座200包括定位段240和连接于所述定位段240的延伸段250，所述定位段240设置于所述端口110，所述延伸段250伸入所述阀腔120内，所述定位段240的外壁与所述端口110的内壁螺纹连接。所述定位段240具有外螺纹，所述端口110的内壁面具有内螺纹，所述定位段240和所述端口110的内壁面螺纹连接，便于连接座200与阀座100的拆装。
请参阅图1和图2，在一实施例中，所述电子膨胀阀组件还包括阀口座400和阀针组件500，所述阀口座400设置于所述导向套300，所述阀口座400具有阀口410，所述阀腔120可通过所述阀口410连通；所述阀针组件500可移动地设置于所述导向套300，所述阀针组件500包括阀杆510和与所述阀杆510连接的阀头520，所述阀头520可移动地插设于所述阀口410内，所述阀杆510沿所述阀口410的轴向可往复运动，以带动所述阀头520打开或关闭所述阀口410。
所述导向套300内具有介质流通腔350和安装口360，该介质流通腔350与阀腔120连通，阀腔120与第一接口130连通。阀口座400安装在安装口360处，并与导向套300密封连接，该阀口座400具有阀口410，阀口410与第二接口140连通，所述介质流通腔350可以与所述阀口410连通。当电子膨胀阀10工作时，流体介质会先从第一接口130进入到阀腔120中，然后通过阀腔120进入到介质流通腔350中，然后在介质流通腔350中从阀口410流出并最后通过第二接口140流出。所述第一接口130和第二接口140用来连接管道。流体介质可从第一接口130或第二接口140中的任意一个口流入，并从另一个口流出，对此不作具体限制。
请继续参阅图1和图2，所述阀针组件500包括阀杆510和与阀杆510连接的阀头520，阀口410与第二接口140连通，阀口410用以供阀针组件500的阀头520***，从而阻断电子膨胀阀10内的流体介质通过阀口410流出。当阀针组件500的阀头520封闭阀口410，也即介质流通腔350和阀口410断开连通时，电子膨胀阀10关闭，此时流体介质不能从第一接口130流向第二接口140；当阀针组件500的阀头520解除对阀口410的密封，也即介质流通腔350和阀口410相互连通时，电子膨胀阀10打开，此时流体介质可以从第一接口130流向第二接口140。所述阀口410的内壁形成流量调节面，所述流量调节面向下倾斜延伸，所述阀头520的形状呈圆柱形设置，当阀头520与流量调节面抵接时，阀头520完全封闭阀口410，当阀头520向上移动时，阀头520与流量调节面之间存在间隙，且该间隙随着阀头520的上移会不断加大，流体介质会从该间隙流过阀口410并流出，所述阀头520通过控制阀头520与流量调节面之间间隙的大小，以此来起到对电子膨胀阀10中的流体介质的流量大小的控制作用。
请继续参阅图1和图2，在一实施例中，所述电子膨胀阀组件还包括螺母组件600和转子组件700，所述螺母组件600与所述阀针组件500螺纹连接，所述转子组件700套设于所述阀针组件500，并可带动所述阀针组件500相对于所述螺母组件600转动，以使得所述阀杆510沿所述阀口410的轴向往复运动，以带动所述阀头520打开或关闭所述阀口410。
所述螺母组件600与所述连接座200固定连接，所述螺母组件600具有螺母，所述螺母与所述阀针组件500的阀杆510螺纹连接，所述转子组件700与所述阀杆510连接，由于螺母与阀杆510之间形成螺母阀杆510的螺纹配合关系，转子组件700转动可以带动阀杆510转动，进而使得阀杆510沿阀口410的轴线方向做伸缩运动，实现阀杆510带动阀头520移动的运动过程，以此来打开或关闭所述阀口410。
所述电子膨胀阀10的工作原理具体如下：
定子组件通电后产生磁场，由磁性材料制成的转子在磁场的驱动下转动，转子与阀杆510固定连接，转子的转动带动阀杆510转动，阀杆510与螺母之间形成螺母阀杆510的螺纹配合关系，螺母组件600固定设置在连接座200上，因此阀杆510相对螺母的转动会驱使阀杆510相对螺母伸缩运动，从而实现定子组件驱动转子组件700运动，转子组件700再驱动阀针组件500运动的工作过程。
阀头520在阀杆510的驱动下朝向阀口410运动，当阀头520封闭阀口410，也即介质流通腔350和阀口410断开连通时，电子膨胀阀10关闭，此时流体介质不能从第一接口130流向第二接口140；当阀头520解除对阀口410的密封，也即介质流通腔350和阀口410相互连通时，电子膨胀阀10打开，此时流体介质可以从第一接口130流向第二接口140。由于电子膨胀阀10中阀口410的开设口径相对较小，流体介质的流通量降低，从而实现电子膨胀阀10对流体介质的节流降压过程。
请参阅图1，在一实施例中，所述电子膨胀阀组件还包括阀壳体800，所述阀壳体800为一端开口的筒状结构，所述阀壳体800与所述连接座200连接，并罩盖所述阀针组件500、所述螺母组件600以及所述转子组件700。所述阀壳体800大致呈圆柱形设计，阀壳体800与连接座200可以通过焊接的方式进行固定。阀壳体800的内部形成有容纳腔，容纳腔内除螺母组件600和阀针组件500外，还容纳有转子组件700，转子组件700与阀杆510连接，阀杆510在转子组件700的带动下旋转，从而带动阀头520移动以打开或关闭所述阀口410。阀壳体800对电子膨胀阀组件的内部元件起到保护的作用。流体介质在电子膨胀阀10工作时，可以流入容纳腔中。
本申请还提出一种电子膨胀阀10，所述电子膨胀阀10包括阀座100以及上述电子膨胀阀组件，所述电子膨胀阀组件安装于所述阀座100。所述电子膨胀阀组件的具体结构参照上述实施例，由于本电子膨胀阀10采用了上述所有实施例的全部技术方案，因此至少具有上述实施例的技术方案所带来的所有有益效果，在此不再一一赘述。
本申请还提出一种制冷设备，所述制冷设备包括上述电子膨胀阀10，所述电子膨胀阀10包括上述电子膨胀阀组件。所述电子膨胀阀组件的具体结构参照上述实施例，由于本制冷设备采用了上述所有实施例的全部技术方案，因此至少具有上述实施例的技术方案所带来的所有有益效果，在此不再一一赘述。其中，所述制冷设备为空调器、冷冻机、冰箱或热泵热水器等。
以上所述仅为本申请的可选实施例，并非因此限制本申请的专利范围，凡是在本申请的申请构思下，利用本申请说明书及附图内容所作的等效结构变换，或直接/间接运用在其他相关的技术领域均包括在本申请的专利保护范围内。

Claims (14)

  1. 一种电子膨胀阀组件，用于安装在电子膨胀阀的阀座上，其中，所述电子膨胀阀组件包括：
    连接座；以及
    导向套，所述导向套与所述连接座铆接。
  2. 如权利要求1所述的电子膨胀阀组件，其中，所述连接座具有第一通孔和与所述第一通孔连通的第二通孔，所述第一通孔的下端面形成铆接面；所述导向套包括导向部，所述导向部伸入所述第二通孔并通过自身形变与所述铆接面抵接。
  3. 如权利要求2所述的电子膨胀阀组件，其中，所述导向套还包括安装部，所述导向部与所述安装部连接，所述安装部的外径不小于所述导向部的外径。
  4. 如权利要求3所述的电子膨胀阀组件，其中，所述导向套还包括本体部，所述本体部与所述安装部连接，所述本体部的上端面形成第一限位部，所述第一限位部与所述连接座的下端面抵接。
  5. 如权利要求4所述的电子膨胀阀组件，其中，所述导向部的外径与所述安装部的外径之间的差值为D，2 mm≥D≥0.005 mm。
  6. 如权利要求5所述的电子膨胀阀组件，其中，所述导向部的外径与所述安装部的外径之间的差值为D，0.5 mm≥D≥0.005 mm。
  7. 如权利要求6所述的电子膨胀阀组件，其中，所述铆接面的宽度为M1，所述导向部包括位于所述第一通孔内的第一导向部和位于所述第二通孔内的第二导向部，所述第一导向部和所述第二导向部连接，所述第一导向部的高度为H1，M1≥H1≥0.2 M1。
  8. 如权利要求1所述的电子膨胀阀组件，其中，所述连接座具有第一通孔和与所述第一通孔连通的第二通孔、第三通孔，所述第三通孔的上端面形成第二限位部；所述导向套包括安装部和轴肩，所述安装部与所述轴肩连接，所述安装部伸入所述第二通孔，所述轴肩设置于所述第三通孔，所述轴肩的上端面与所述第二限位部抵接。
  9. 如权利要求8所述的电子膨胀阀组件，其中，所述连接座的下端向下凸设有铆接部260，所述铆接部260通过自身形变与所述轴肩的下端面抵接。
  10. 如权利要求9所述的电子膨胀阀组件，其中，所述轴肩的下端面的宽度为M2，所述铆接部260的高度为H2，M2≥H2≥0.2 M2。
  11. 如权利要求1所述的电子膨胀阀组件，其中，所述连接座的材质为不锈钢，所述导向套的材质为铝合金，所述连接座与所述导向套铆接。
  12. 一种电子膨胀阀，其中，所述电子膨胀阀包括：
    阀座；以及
    如权利要求1至11中任意一项所述的电子膨胀阀组件，所述电子膨胀阀组件安装于所述阀座。
  13. 一种制冷设备，其中，所述制冷设备包括如权利要求12所述的电子膨胀阀。
  14. 如权利要求13所述的制冷设备，其中，所述制冷设备为空调器、冷冻机、冰箱或热泵热水器。
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