CN117515199A - Electronic expansion valve assembly, electronic expansion valve and refrigeration equipment - Google Patents

Electronic expansion valve assembly, electronic expansion valve and refrigeration equipment Download PDF

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Publication number
CN117515199A
CN117515199A CN202210902006.2A CN202210902006A CN117515199A CN 117515199 A CN117515199 A CN 117515199A CN 202210902006 A CN202210902006 A CN 202210902006A CN 117515199 A CN117515199 A CN 117515199A
Authority
CN
China
Prior art keywords
electronic expansion
expansion valve
hole
valve
valve assembly
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
CN202210902006.2A
Other languages
Chinese (zh)
Inventor
杨茂
任纬峰
曾庆军
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.)
Guangdong Welling Motor Manufacturing Co Ltd
Original Assignee
Guangdong Welling Motor Manufacturing 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 Guangdong Welling Motor Manufacturing Co Ltd filed Critical Guangdong Welling Motor Manufacturing Co Ltd
Priority to CN202210902006.2A priority Critical patent/CN117515199A/en
Priority to PCT/CN2023/102912 priority patent/WO2024021964A1/en
Publication of CN117515199A publication Critical patent/CN117515199A/en
Pending legal-status Critical Current

Links

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

Landscapes

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

Abstract

The invention discloses an electronic expansion valve assembly, an electronic expansion valve and refrigeration equipment, wherein the electronic expansion valve assembly comprises a connecting seat and a guide sleeve; the guide sleeve is riveted with the connecting seat. The electronic expansion valve assembly can improve the production efficiency of the electronic expansion valve assembly.

Description

Electronic expansion valve assembly, electronic expansion valve and refrigeration equipment
Technical Field
The invention relates to the technical field of fluid control components, in particular to an electronic expansion valve assembly, an electronic expansion valve and refrigeration equipment.
Background
The electronic expansion valve is an important part in the refrigeration system and mainly plays roles of throttling, depressurization and flow regulation. In the related art, the electronic expansion valve comprises a valve seat assembly, a nut assembly, a valve needle assembly, a magnetic rotor assembly and other parts, wherein the valve seat assembly is provided with a valve port, and when the electronic expansion valve works, the magnetic rotor assembly is driven to rotate through an electrified coil encircling the outside of the valve housing, so that the valve needle assembly is driven to axially move, and further the valve port is controlled to open or close, so that the functions of throttling, reducing pressure and regulating flow are realized.
When connecting seat and uide bushing in current electronic expansion valve, will be in the same place connecting seat and uide bushing assembly through assembly equipment earlier usually, then be in the same place its welding through welding equipment, whole process needs two equipment to realize, and the process is loaded down with trivial details, and time is longer when welding connecting seat and uide bushing to lead to production efficiency low.
Disclosure of Invention
The invention mainly aims to provide an electronic expansion valve assembly, which aims to improve the production efficiency of the electronic expansion valve assembly.
In order to achieve the above object, the present invention provides an electronic expansion valve assembly, which includes a connection seat and a guide sleeve; the guide sleeve is riveted with the connecting seat.
In one embodiment, the connecting seat is provided with a first through hole and a second through hole communicated with the first through hole, and the lower end surface of the first through hole forms a riveting surface; the guide sleeve comprises a guide part, and the guide part stretches into the second through hole and is abutted with the riveting surface through self deformation.
In an embodiment, the guide sleeve further comprises a mounting portion, the guide portion is connected with the mounting portion, and an outer diameter of the mounting portion is not smaller than an outer diameter of the guide portion.
In an embodiment, the guide sleeve further comprises a body portion, the body portion is connected with the mounting portion, a first limiting portion is formed on the upper end face of the body portion, and the first limiting portion abuts against the lower end face of the connecting seat.
In one embodiment, the difference between the outer diameter of the guide portion and the outer diameter of the mounting portion is D, and 2mm is greater than or equal to D is greater than or equal to 0.005mm.
In one embodiment, the difference between the outer diameter of the guide portion and the outer diameter of the mounting portion is D, and 0.5mm is greater than or equal to D is greater than or equal to 0.005mm.
In an embodiment, the width of the riveting surface is M1, the guiding portion includes a first guiding portion located in the first through hole and a second guiding portion located in the second through hole, the first guiding portion is connected with the second guiding portion, and the height of the first guiding portion is H1, M1 is greater than or equal to H1 and greater than or equal to 0.2M1.
In an embodiment, the connecting seat is provided with a first through hole, a second through hole and a third through hole which are communicated with the first through hole, and the upper end surface of the third through hole forms a second limiting part; the guide sleeve comprises a mounting part and a shaft shoulder, the mounting part is connected with the shaft shoulder, the mounting part stretches into the second through hole, the shaft shoulder is arranged in the third through hole, and the upper end face of the shaft shoulder is abutted to the second limiting part.
In an embodiment, a riveting part is protruding downwards from the lower end of the connecting seat, and the riveting part is abutted to the lower end face of the shaft shoulder through self deformation.
In an embodiment, the width of the lower end face of the shaft shoulder is M2, and the height of the riveting part is H2, wherein M2 is more than or equal to H2 and more than or equal to 0.2M2.
In an embodiment, the connecting seat is made of stainless steel, the guide sleeve is made of aluminum alloy, and the connecting seat is riveted with the guide sleeve.
The invention also provides an electronic expansion valve, which comprises a valve seat and the electronic expansion valve assembly, wherein the electronic expansion valve assembly is arranged on the valve seat. The electronic expansion valve assembly comprises a connecting seat and a guide sleeve; the guide sleeve is riveted with the connecting seat.
The invention also provides refrigeration equipment comprising the electronic expansion valve. The electronic expansion valve comprises 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 comprises a connecting seat and a guide sleeve; the guide sleeve is riveted with the connecting seat.
In an embodiment, the refrigeration device is an air conditioner, a freezer, a refrigerator, or a heat pump water heater.
The electronic expansion valve assembly comprises a connecting seat and a guide sleeve; the guide sleeve is riveted with the connecting seat. The riveting process is few, and the time is short, so that the production efficiency of the electronic expansion valve assembly can be improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of an electronic expansion valve according to an embodiment of the present invention;
FIG. 2 is a schematic view of the valve seat of the electronic expansion valve of FIG. 1;
FIG. 3 is a schematic diagram of an electronic expansion valve assembly according to an embodiment of the present invention;
FIG. 4 is a schematic illustration of the structure of FIG. 3 prior to riveting;
FIG. 5 is an enlarged view of FIG. 4 at A;
FIG. 6 is a schematic diagram of the structure of FIG. 3 after riveting;
FIG. 7 is a schematic diagram of another embodiment of an electronic expansion valve assembly according to the present invention;
FIG. 8 is a schematic illustration of the structure of FIG. 7 prior to riveting;
fig. 9 is a schematic diagram of the structure of fig. 7 after riveting.
Reference numerals illustrate:
the achievement of the objects, functional features and advantages of the present invention will be further described with reference to the accompanying drawings, in conjunction with the embodiments.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
It should be noted that, if directional indications (such as up, down, left, right, front, and rear … …) are included in the embodiments of the present invention, the directional indications are merely used to explain the relative positional relationship, movement conditions, etc. between the components in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are correspondingly changed.
In addition, if there is a description of "first", "second", etc. in the embodiments of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, if the meaning of "and/or" is presented throughout this document, it is intended to include three schemes in parallel, taking "a and/or B" as an example, including a scheme, or B scheme, or a scheme where a and B meet simultaneously. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present invention.
The invention provides an embodiment of an electronic expansion valve assembly, wherein the electronic expansion valve is an important component in a refrigeration system and mainly plays roles of throttling, reducing pressure and regulating flow. The existing electronic expansion valve comprises a valve seat, a nut component and a valve needle component in threaded fit with the nut component, the valve needle component is driven by a magnetic rotor component to generate axial movement, and the opening of a valve port is regulated, so that the circulation control of media is realized. According to the electronic expansion valve assembly, the connecting seat and the guide sleeve are arranged in a split mode, and the connecting seat and the guide sleeve are connected in a riveting mode, so that the assembly efficiency between the connecting seat and the guide sleeve is improved.
The electronic expansion valve assembly can be applied to an air conditioning system, and a fluid medium flowing through the electronic expansion valve is a refrigerant used for performing cold and heat exchange in the air conditioning system. At this time, the electronic expansion valve is installed at the inlet of the evaporator of the air conditioning system, and the electronic expansion valve is used as a demarcation element between the high-pressure side and the low-pressure side of the air conditioning system, so that the high-pressure liquid refrigerant from the liquid storage dryer and other devices is throttled and depressurized, and the dosage of the liquid refrigerant entering the evaporator is regulated and controlled, so that the dosage of the liquid refrigerant can meet the requirements of external refrigeration load. Or, the electronic expansion valve may be applied to other types of refrigeration apparatuses, and the fluid medium flowing through the electronic expansion valve may be other fluid medium besides a refrigerant, so long as the electronic expansion valve can realize throttling and depressurization of the fluid medium, which is not particularly limited.
Referring to fig. 1 to 9, in an embodiment of the present invention, the electronic expansion valve assembly includes a connection seat 200 and a guide sleeve 300; the guide sleeve 300 is riveted with the connection seat 200.
Specifically, the electronic expansion valve assembly is configured to be mounted on a valve seat 100 of the electronic expansion valve 10, a port 110 is formed at one end of the valve seat 100, and a valve cavity 120 communicating with the port 110 is formed in the valve seat 100; the connection seat 200 is disposed at the port 110; the guide sleeve 300 is disposed in the valve cavity 120, and it should be emphasized that the valve seat 100 may be a valve seat specially used for mounting the electronic expansion valve assembly to form a single electronic expansion valve 10, or the valve seat 100 may be a valve seat 100 of an integrated module, where the electronic expansion valve assembly of the present application may be mounted on the valve seat 100 of the integrated module, and other structural assemblies. The valve seat 100 may be manufactured by machining of stainless steel material, machining of aluminum material, or machining of other materials, without particular limitation. The valve seat 100 may be cylindrical, square, or other contoured in shape. One end of the valve seat 100 is formed with a port 110, the port 110 is specifically a stepped hole, the connecting seat 200 is fixedly installed in the stepped hole, and for facilitating the later disassembly and assembly, the connecting seat 200 can be in threaded connection with the inner wall of the stepped hole. The valve seat 100 is also internally provided with a valve cavity 120, the valve cavity 120 is communicated with the port 110, a first connector 130 and a second connector 140 can be arranged on the valve seat 100, the first connector 130 and the second connector 140 are used for connecting pipelines, and the first connector 130 and the second connector 140 can be communicated through the valve cavity 120, so that fluid medium can enter from the first connector 130 and flow out from the second connector 140 through the valve cavity 120; conversely, fluid medium may also enter from the second port 140 and exit from the first port 130 through the valve chamber 120, i.e., fluid medium may flow into the valve chamber 120 from either the first port 130 or the second port 140 and exit from the other port. In this embodiment, the fluid medium flows into the valve chamber 120 from the first port 130 and out from the second port 140.
The guide sleeve 300 is arranged in the valve cavity 120 and is positioned below the connecting seat 200, the outer diameter of the connecting seat 200 is larger, the outer diameter of the guide sleeve 300 is smaller, the guide sleeve 300 and the connecting seat 200 are arranged in a split mode, and the guide sleeve 300 and the connecting seat 200 are riveted together. Compared with the traditional scheme of integrally arranging the guide sleeve 300 and the connecting seat 200, the technical scheme of the application has the advantages that when the guide sleeve 300 and the connecting seat 200 are respectively processed, the processing allowance is small, the processing time is short, and the production efficiency can be improved; meanwhile, the processing allowance is small, the loss of raw materials can be further reduced, and the cost is reduced; further, when the guide sleeve 300 and the connection seat 200 are respectively processed, the abrasion degree of the cutter is also small, the cutter does not need to be frequently replaced, the service life of the cutter is prolonged, and the cost is further reduced.
Referring to fig. 6 and 9, the guide sleeve 300 is riveted with the connection seat 200, specifically, the guide sleeve 300 and the connection seat 200 are connected by riveting, the deformation of the connection position between the guide sleeve 300 and the connection seat 200 after riveting is small, the requirement of the riveting mode on the environment is low, and the riveted parts are not easy to loosen. When the guide sleeve 300 is welded to the connection base 200, the connection base 200 and the guide sleeve 300 are assembled together by an assembling device, and then welded together by a welding device, so that the whole process needs two devices. Compared with a welding mode, the guide sleeve 300 and the connecting seat 200 are connected in a riveting mode, the working procedures are few, the operation can be finished through one piece of equipment, the time is short, and the production efficiency of the electronic expansion valve assembly can be improved.
Further, the guide sleeve 300 is connected with the connecting seat 200 in a riveting manner, at this time, the connecting seat 200 is made of stainless steel, the guide sleeve 300 can be made of aluminum alloy, and the aluminum alloy has the advantages of light weight and high strength, good sealing performance, corrosion resistance and relatively low cost. The guide sleeve 300 made of aluminum alloy can realize light weight, and further reduce the production cost of the electronic expansion valve assembly.
Of course, in other embodiments, the guide sleeve 300 and the connection seat 200 may be further connected by welding, clamping, or other connection methods, which is not particularly limited.
The electronic expansion valve assembly of the present invention includes a connection base 200 and a guide sleeve 300; the guide sleeve 300 is riveted with the connection seat 200. The riveting process is few, and the time is short, so that the production efficiency of the electronic expansion valve assembly can be improved.
Referring to fig. 3 to 6, in an embodiment, the connection base 200 has a first through hole 210 and a second through hole 220 communicating with the first through hole 210, and a riveting surface 211 is formed on a lower end surface of the first through hole 210; the guide sleeve 300 includes a guide portion 310, where the guide portion 310 extends into the second through hole 220 and abuts against the riveting surface 211 through self deformation.
Specifically, the outer diameter of the first through hole 210 is larger than the outer diameter of the second through hole 220, when the guide sleeve 300 is riveted with the connecting seat 200, a riveting surface 211 is formed at the connection position of the first through hole 210 and the second through hole 220 (i.e. the lower end surface of the first through hole 210), the guide portion 310 extends into the second through hole 220 and extends into the first through hole 210 from the second through hole 220, and then the edge of the guide portion 310 is deformed to abut against the riveting surface 211 by the riveting device, so as to fixedly connect the guide sleeve 300 with the connecting seat 200.
Further, the guide sleeve 300 further includes a mounting portion 320, the guide portion 310 is connected to the mounting portion 320, and an outer diameter of the mounting portion 320 is not smaller than an outer diameter of the guide portion 310. Specifically, the guide portion 310 is connected to an end of the mounting portion 320 near the port 110, the outer diameter of the mounting portion 320 is larger than the outer diameter of the guide portion 310, and the mounting portion 320 is tightly connected to the second through hole 220. When the guide bush 300 is assembled with the connection seat 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 pressed into the second through hole 220 first, and then the mounting part 320 is pressed into the second through hole 220, wherein the guide part 310 can play a role in guiding the assembly of the guide bush 300, so that the guide bush 300 can be pressed into the second through hole 220 conveniently.
Still further, the guide sleeve 300 further includes a body portion 330, the body portion 330 is connected to the mounting portion 320, an upper end surface of the body portion 330 forms a first limiting portion 331, and the first limiting portion 331 abuts against a lower end surface of the connection seat 200. Specifically, the first limiting portion 331 may limit the upper end of the guide sleeve 300 to fix the guide sleeve 300, so as to avoid the mounting portion 320 of the guide sleeve 300 from being excessively pressed into the second through hole 220.
Referring to FIG. 5, in one embodiment, the difference between the outer diameter of the guiding portion 310 and the outer diameter of the mounting portion 320 is D,2 mm. Gtoreq.D.gtoreq.0.005 mm. Preferably, the difference between the outer diameter of the guide portion 310 and the outer diameter of the mounting portion 320 is D, and 0.5mm is D is 0.005mm. So that the guide portion 310 has a good guide effect.
Referring to fig. 4, in an embodiment, the width of the riveting surface 211 is M1, the guiding portion 310 includes a first guiding portion 311 located in the first through hole 210 and a second guiding portion 312 located in the second through hole 220, the first guiding portion 311 and the second guiding portion 312 are connected, and the height of the first guiding portion 311 is H1, M1 is greater than or equal to H1 and greater than or equal to 0.2M1.
Specifically, since the riveting of the guide sleeve 300 and the connection socket 200 is actually achieved by the guide portion 310 extending into the second through hole 220 and abutting the riveting surface 211 through self deformation, the guide portion 310 should be at least partially located in the first through hole 210, and the portion may be deformed to abut the riveting surface 211. Further, the guiding portion 310 includes a first guiding portion 311 located in the first through hole 210 and a second guiding portion 312 located in the second through hole 220, and the first guiding portion 311 is deformed into the first guiding portion 311, and because the first guiding portion 311 needs to be deformed to abut against the riveting surface 211, the height H1 of the first guiding portion 311 should meet that M1 is greater than or equal to H1 is greater than or equal to 0.2M1, so that the first guiding portion 311 may abut against the riveting surface 211. Preferably, after the first guiding portion 311 abuts against the riveting surface 211, the first guiding portion 311 also abuts against the inner wall of the first through hole 210, so as to further enhance the connection stability between the guide sleeve 300 and the connection seat 200.
Referring to fig. 7 to 9, in another embodiment, the connection seat 200 has a first through hole 210, a second through hole 220 and a third through hole 230, which are communicated with the first through hole 210, and a second limiting portion 231 is formed on an upper end surface of the third through hole 230; the guide sleeve 300 comprises a mounting portion 320 and a shaft shoulder 340, the mounting portion 320 is connected with the shaft shoulder 340, the mounting portion 320 extends into the second through hole 220, the shaft shoulder 340 is disposed in the third through hole 230, and an upper end surface of the shaft shoulder 340 abuts against the second limiting portion 231. In this embodiment, the guide sleeve 300 is riveted with the lower end of the connection seat 200, and does not need to extend into the first through hole 210 to abut against the riveting surface 211. Specifically, the second limiting portion 231 abuts against the upper end surface of the shaft shoulder 340, and the second limiting portion 231 may limit the upper end of the shaft shoulder 340, so as to fix the guide sleeve 300, and avoid the guide sleeve 300 from being excessively press-fitted into the second through hole 220.
Referring to fig. 7 to 9, in an embodiment, a riveting portion 260 is protruding downward from the lower end of the connecting seat 200, and the riveting portion 260 abuts against the lower end surface of the shaft shoulder 340 through self deformation. Specifically, the riveting of the guide sleeve 300 and the connecting seat 200 may be achieved by the riveting portion 260 abutting against the lower end surface of the shoulder 340 through self deformation, and in this embodiment, the guide sleeve 300 is riveted with the lower end of the connecting seat 200 without extending into the first through hole 210 to abut against the riveting surface 211, which is convenient and quick. The rivet 260 may be formed at the lower end of the connection socket 200 and close to the third through hole 230. Preferably, the rivet 260 is located at the periphery of the third through hole 230 and extends downward from the lower end of the connection socket 200. Further, after the rivet 260 abuts against the lower end surface of the shoulder 340, the rivet 260 abuts against the outer wall surface of the guide sleeve 300, so as to further enhance the connection stability between the guide sleeve 300 and the connection seat 200.
Referring to fig. 8, in an embodiment, the width of the lower end surface of the shoulder 340 is M2, and the height of the rivet 260 is H2, where M2 is greater than or equal to H2 and greater than or equal to 0.2M2. Specifically, since the riveting of the guide sleeve 300 and the connection seat 200 is achieved by the riveting portion 260 abutting against the lower end surface of the shaft shoulder 340 through self deformation, the height H2 of the riveting portion 260 should satisfy m2.gtoreq.h2.gtoreq. 0.2M2, wherein the height of the riveting portion 260 is smaller than or equal to the width of the lower end surface of the shaft shoulder 340 in order to interfere when the riveting portion 260 abuts against the lower end surface of the shaft shoulder 340 after deformation.
Based on any of the above embodiments, the material of the connecting seat 200 is stainless steel, the material of the guide sleeve 300 is aluminum alloy, and the connecting seat 200 is riveted with the guide sleeve 300. Specifically, the guide sleeve 300 and the connecting seat 200 are connected in a riveting manner, at this time, the connecting seat 200 is made of stainless steel, the guide sleeve 300 can be made of aluminum alloy, and the aluminum alloy has the advantages of light weight and high strength, good sealing performance, corrosion resistance and relatively low cost. The guide sleeve 300 made of aluminum alloy can realize light weight, and further reduce the production cost of the electronic expansion valve assembly.
Referring to fig. 3 and 7, according to any of the foregoing embodiments, the connector 200 includes a positioning section 240 and an extension section 250 connected to the positioning section 240, the positioning section 240 is disposed on the port 110, the extension section 250 extends into the valve cavity 120, and an outer wall of the positioning section 240 is in threaded connection with an inner wall of the port 110. Specifically, the positioning section 240 has external threads, the inner wall surface of the port 110 has internal threads, and the positioning section 240 is in threaded connection with the inner wall surface of the port 110, so as to facilitate the assembly and disassembly of the connecting seat 200 and the valve seat 100.
Referring to fig. 1 and 2, in an embodiment, the electronic expansion valve assembly further includes a valve seat 400 and a valve needle assembly 500, the valve seat 400 is disposed on the guide sleeve 300, the valve seat 400 has a valve port 410, and the valve cavity 120 can be communicated through the valve port 410; the valve needle assembly 500 is movably arranged on the guide sleeve 300, the valve needle assembly 500 comprises a valve rod 510 and a valve head 520 connected with the valve rod 510, the valve head 520 is movably inserted into the valve port 410, and the valve rod 510 can reciprocate along the axial direction of the valve port 410 so as to drive the valve head 520 to open or close the valve port 410.
Specifically, the guide sleeve 300 has a medium circulation chamber 350 and a mounting port 360 therein, the medium circulation chamber 350 communicates with the valve chamber 120, and the valve chamber 120 communicates with the first port 130. A valve port seat 400 is installed at the installation port 360 and is in sealing connection with the guide sleeve 300, the valve port seat 400 has a valve port 410, the valve port 410 communicates with the second port 140, and the medium circulation chamber 350 can communicate with the valve port 410. When the electronic expansion valve 10 is in operation, fluid medium will first enter the valve chamber 120 from the first port 130, then enter the medium flow chamber 350 through the valve chamber 120, then exit the valve port 410 in the medium flow chamber 350 and finally exit through the second port 140. The first port 130 and the second port 140 are used to connect pipes. The fluid medium may flow into one of the first port 130 and the second port 140 and flow out of the other port, which is not particularly limited.
With continued reference to fig. 1 and 2, the valve needle assembly 500 includes a valve stem 510 and a valve head 520 coupled to the valve stem 510, the valve port 410 being in communication with the second port 140, the valve port 410 being configured for insertion of the valve head 520 of the valve needle assembly 500 to block fluid medium within the electronic expansion valve 10 from exiting through the valve port 410. When the valve head 520 of the valve needle assembly 500 closes the valve port 410, i.e., the medium flow chamber 350 and the valve port 410 are disconnected, the electronic expansion valve 10 is closed, and fluid medium cannot flow from the first port 130 to the second port 140; when the valve head 520 of the valve needle assembly 500 releases the seal against the valve port 410, i.e., the medium flow chamber 350 and the valve port 410 communicate with each other, the electronic expansion valve 10 opens, at which time fluid medium may flow from the first port 130 to the second port 140. The inner wall of the valve port 410 forms a flow adjusting surface, the flow adjusting surface extends obliquely downwards, the valve head 520 is in a cylindrical shape, when the valve head 520 is abutted against the flow adjusting surface, the valve head 520 completely closes the valve port 410, when the valve head 520 moves upwards, a gap exists between the valve head 520 and the flow adjusting surface, the gap is continuously enlarged along with the upward movement of the valve head 520, a fluid medium flows through the valve port 410 and flows out from the gap, and the valve head 520 controls the flow 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 adjusting surface.
With continued reference to fig. 1 and 2, in an embodiment, the electronic expansion valve assembly further includes a nut assembly 600 and a rotor assembly 700, the nut assembly 600 is in threaded connection with 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 rod 510 reciprocates along the axial direction of the valve port 410, so as to drive the valve head 520 to open or close the valve port 410.
Specifically, the nut assembly 600 is fixedly connected with the connection seat 200, the nut assembly 600 has a nut, the nut is in threaded connection with the valve rod 510 of the valve needle assembly 500, the rotor assembly 700 is connected with the valve rod 510, and the rotor assembly 700 rotates to drive the valve rod 510 to rotate due to the threaded matching relationship of the nut and the valve rod 510, so that the valve rod 510 can make telescopic movement along the axial direction of the valve port 410, and the movement process that the valve rod 510 drives the valve head 520 to move is realized, so that the valve port 410 is opened or closed.
The working principle of the electronic expansion valve 10 is specifically as follows:
after the stator assembly is electrified, a magnetic field is generated, a rotor made of magnetic materials rotates under the drive of the magnetic field, the rotor is fixedly connected with the valve rod 510, the rotation of the rotor drives the valve rod 510 to rotate, a threaded matching relation of the nut valve rod 510 is formed between the valve rod 510 and the nut, the nut assembly 600 is fixedly arranged on the connecting seat 200, and therefore the rotation of the valve rod 510 relative to the nut drives the valve rod 510 to move in a telescopic mode relative to the nut, the stator assembly is driven to move by the rotor assembly 700, and the valve needle assembly 500 is driven to move by the rotor assembly 700.
The valve head 520 moves towards the valve port 410 under the drive of the valve stem 510, and when the valve head 520 closes the valve port 410, i.e., the medium flow chamber 350 and the valve port 410 are disconnected, the electronic expansion valve 10 is closed, and the fluid medium cannot flow from the first port 130 to the second port 140; when the valve head 520 releases the seal against the valve port 410, i.e., the media flow chamber 350 and the valve port 410 are in communication with each other, the electronic expansion valve 10 opens, at which time fluid media may flow from the first port 130 to the second port 140. Because the opening caliber of the valve port 410 in the electronic expansion valve 10 is relatively smaller, the flow quantity of the fluid medium is reduced, and thus the throttling and depressurization process of the electronic expansion valve 10 on the fluid medium is realized.
Referring to fig. 1, in an embodiment, the electronic expansion valve assembly further includes a valve housing 800, the valve housing 800 has a cylindrical structure with an opening at one end, and the valve housing 800 is connected to the connection seat 200 and covers the valve needle assembly 500, the nut assembly 600 and the rotor assembly 700. Specifically, the valve housing 800 is generally cylindrical, and the valve housing 800 and the connection seat 200 may be fixed by welding. The valve housing 800 has a receiving chamber formed therein, in which a rotor assembly 700 is received in addition to the nut assembly 600 and the needle assembly 500, the rotor assembly 700 being coupled to a valve stem 510, the valve stem 510 being rotated by the rotor assembly 700, thereby driving the valve head 520 to move to open or close the valve port 410. The valve housing 800 protects the internal components of the electronic expansion valve assembly. The fluid medium can flow into the receiving chamber during operation of the electronic expansion valve 10.
The invention also provides an electronic expansion valve 10, the electronic expansion valve 10 comprises a valve seat 100 and the electronic expansion valve assembly, and the electronic expansion valve assembly is mounted on the valve seat 100. The specific structure of the electronic expansion valve assembly refers to the above embodiments, and since the electronic expansion valve 10 adopts all the technical solutions of all the embodiments, at least has all the beneficial effects brought by the technical solutions of the embodiments, and will not be described in detail herein.
The invention also provides refrigeration equipment, which comprises the electronic expansion valve 10, wherein the electronic expansion valve 10 comprises the electronic expansion valve assembly. The specific structure of the electronic expansion valve assembly refers to the above embodiments, and because the refrigeration equipment adopts all the technical solutions of all the embodiments, the refrigeration equipment has at least all the beneficial effects brought by the technical solutions of the embodiments, and the description is omitted herein. Wherein the refrigeration equipment is an air conditioner, a refrigerator or a heat pump water heater and the like.
The foregoing description is only of the optional embodiments of the present invention, and is not intended to limit the scope of the invention, and all the equivalent structural changes made by the description of the present invention and the accompanying drawings or the direct/indirect application in other related technical fields are included in the scope of the invention.

Claims (14)

1. An electronic expansion valve assembly for mounting on a valve seat of an electronic expansion valve, the electronic expansion valve assembly comprising:
a connecting seat; and
the guide sleeve is riveted with the connecting seat.
2. The electronic expansion valve assembly of claim 1, wherein said connection base has a first through hole and a second through hole communicating with said first through hole, a lower end surface of said first through hole forming a caulking face; the guide sleeve comprises a guide part, and the guide part stretches into the second through hole and is abutted with the riveting surface through self deformation.
3. The electronic expansion valve assembly of claim 2, wherein the guide sleeve further comprises a mounting portion, the guide portion being coupled to the mounting portion, the mounting portion having an outer diameter that is not less than an outer diameter of the guide portion.
4. The electronic expansion valve assembly of claim 3, wherein the guide sleeve further comprises a body portion, the body portion is connected with the mounting portion, an upper end surface of the body portion forms a first limiting portion, and the first limiting portion abuts against a lower end surface of the connecting seat.
5. The electronic expansion valve assembly of claim 4, wherein the difference between the outer diameter of the pilot portion and the outer diameter of the mounting portion is D,2mm not less than D not less than 0.005mm.
6. The electronic expansion valve assembly of claim 5, wherein the difference between the outer diameter of the pilot portion and the outer diameter of the mounting portion is D,0.5mm ≡D ≡0.005mm.
7. The electronic expansion valve assembly of claim 6, wherein the rivet face has a width M1, the guide portion comprises a first guide portion located in the first through hole and a second guide portion located in the second through hole, the first guide portion and the second guide portion are connected, the first guide portion has a height H1, and M1 is greater than or equal to H1 and greater than or equal to 0.2M1.
8. The electronic expansion valve assembly of claim 1, wherein the connection base has a first through hole, a second through hole and a third through hole communicated with the first through hole, and an upper end surface of the third through hole forms a second limit part; the guide sleeve comprises a mounting part and a shaft shoulder, the mounting part is connected with the shaft shoulder, the mounting part stretches into the second through hole, the shaft shoulder is arranged in the third through hole, and the upper end face of the shaft shoulder is abutted to the second limiting part.
9. The electronic expansion valve assembly according to claim 8, wherein a rivet portion 260 is provided at a lower end of the connection base so as to protrude downward, and the rivet portion 260 abuts against a lower end surface of the shoulder by deforming itself.
10. The electronic expansion valve assembly of claim 9, wherein the width of the lower end surface of the shoulder is M2, and the height of the rivet 260 is H2, wherein M2 is greater than or equal to H2 and greater than or equal to 0.2M2.
11. The electronic expansion valve assembly of claim 1, wherein the connecting seat is made of stainless steel, the guide sleeve is made of aluminum alloy, and the connecting seat is riveted with the guide sleeve.
12. An electronic expansion valve, characterized in that it comprises:
a valve seat; and
the electronic expansion valve assembly of any of claims 1 to 11, mounted to said valve seat.
13. A refrigeration device comprising the electronic expansion valve of claim 12.
14. The refrigeration appliance of claim 13 wherein the refrigeration appliance is an air conditioner, a freezer, a refrigerator or a heat pump water heater.
CN202210902006.2A 2022-07-27 2022-07-27 Electronic expansion valve assembly, electronic expansion valve and refrigeration equipment Pending CN117515199A (en)

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CN202210902006.2A CN117515199A (en) 2022-07-27 2022-07-27 Electronic expansion valve assembly, electronic expansion valve and refrigeration equipment
PCT/CN2023/102912 WO2024021964A1 (en) 2022-07-27 2023-06-27 Electronic expansion valve assembly, electronic expansion valve and refrigeration apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202210902006.2A CN117515199A (en) 2022-07-27 2022-07-27 Electronic expansion valve assembly, electronic expansion valve and refrigeration equipment

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CN117515199A true CN117515199A (en) 2024-02-06

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JP7199335B2 (en) * 2019-10-25 2023-01-05 株式会社鷺宮製作所 Electric valve and refrigeration cycle system
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CN217784257U (en) * 2022-07-27 2022-11-11 广东威灵电机制造有限公司 Electronic expansion valve assembly, electronic expansion valve and refrigeration equipment
CN217784254U (en) * 2022-07-27 2022-11-11 广东威灵电机制造有限公司 Electronic expansion valve and refrigeration equipment
CN217784255U (en) * 2022-07-27 2022-11-11 广东威灵电机制造有限公司 Electronic expansion valve and refrigeration equipment
CN217874276U (en) * 2022-07-27 2022-11-22 广东威灵电机制造有限公司 Electronic expansion valve and refrigeration equipment

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