CN117515192A - Electronic expansion valve and refrigeration equipment - Google Patents

Electronic expansion valve and refrigeration equipment Download PDF

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Publication number
CN117515192A
CN117515192A CN202210890186.7A CN202210890186A CN117515192A CN 117515192 A CN117515192 A CN 117515192A CN 202210890186 A CN202210890186 A CN 202210890186A CN 117515192 A CN117515192 A CN 117515192A
Authority
CN
China
Prior art keywords
valve
electronic expansion
port
expansion valve
valve seat
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
CN202210890186.7A
Other languages
Chinese (zh)
Inventor
陈超
任纬峰
杨茂
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 CN202210890186.7A priority Critical patent/CN117515192A/en
Priority to PCT/CN2023/098646 priority patent/WO2024021886A1/en
Publication of CN117515192A publication Critical patent/CN117515192A/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
    • 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
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating

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 and refrigeration equipment, wherein the electronic expansion valve comprises a valve seat and at least one joint, a port is formed at one end of the valve seat, a valve cavity communicated with the port is formed on the valve seat, and the valve seat is provided with at least one mounting port communicated with the valve cavity; the connector is arranged at the mounting port and is provided with a switching channel, and one end of the switching channel is communicated with the mounting port. The invention discloses an electronic expansion valve, which is characterized in that a joint is additionally arranged at the mounting opening of a valve seat, the joint is provided with a switching channel, one end of the switching channel is communicated with the mounting opening of the valve seat, and the other end of the switching channel is used for communicating with a switching pipe.

Description

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 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 core assembly, a magnetic rotor assembly and other parts, wherein a valve port assembly is arranged in the valve seat assembly, a valve port is arranged on the valve port assembly, 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 core assembly is driven to axially move, and further the valve port is controlled to be opened or closed, so that the functions of throttling, reducing pressure and regulating flow are realized. The valve seat assembly includes a valve seat having a mounting port for the connection of the docking tube, however, in order to secure the client mounting depth, the weight of the valve seat is greatly increased.
Disclosure of Invention
The invention mainly aims to provide an electronic expansion valve and refrigeration equipment, which aim to save valve seat materials and realize light weight.
In order to achieve the above object, an electronic expansion valve according to the present invention includes:
a valve seat, one end of which is provided with a port, the valve seat is provided with a valve cavity communicated with the port, the valve seat is provided with at least one mounting port, and the mounting port is communicated with the valve cavity; and
the connector is arranged at the mounting port and is provided with a switching channel, and one end of the switching channel is communicated with the mounting port.
In one embodiment, the depth of the mounting port is less than the depth of the transit passage.
In an embodiment, the connector includes a switching portion and a fixing portion connected to the switching portion, the switching channel is disposed on the switching portion, and the fixing portion is connected to the valve seat.
In one embodiment, the adaptor includes an insertion section and a main section, the insertion section is inserted into the mounting port, and the fixing section is connected to the main section 312.
In an embodiment, the joint tapers from the adapter portion to the fixing portion.
In one embodiment, the fixing portion has a threaded hole.
In one embodiment, a gap between the fixing portion and the valve seat is not less than 1mm.
In one embodiment, the number of the mounting ports is 2, and the number of the connectors is 2.
In an embodiment, the material of the valve seat is aluminum or aluminum alloy.
In an embodiment, the material of the joint is aluminum or aluminum alloy.
In an embodiment, the electronic expansion valve further comprises a connecting assembly and a valve core assembly, wherein the connecting assembly is arranged in the valve cavity and is provided with a valve port, and the valve core assembly is movably arranged in the connecting assembly and is used for conducting or blocking the mounting port and the valve port.
The invention also provides refrigeration equipment comprising the electronic expansion valve in any embodiment.
The electronic expansion valve comprises a valve seat and at least one joint, wherein a port is formed at one end of the valve seat, a valve cavity communicated with the port is formed on the valve seat, and the valve seat is provided with at least one mounting port communicated with the valve cavity; the connector is arranged at the mounting port and is provided with a switching channel, and one end of the switching channel is communicated with the mounting port. The electronic expansion valve is characterized in that the joint is additionally arranged at the mounting opening of the valve seat, the joint is provided with the switching channel, one end of the switching channel is communicated with the mounting opening of the valve seat, and the other end of the switching channel is used for communicating the switching pipe. In addition, the joint can be a standard part and is commonly used for valve seats with different valve port calibers.
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 showing an assembled structure of a valve seat and a joint 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 embodiment of FIG. 1;
FIG. 3 is a schematic view of the joint of the embodiment of FIG. 1;
FIG. 4 is a schematic perspective view of an electronic expansion valve according to an embodiment of the present invention;
FIG. 5 is a schematic view of a perspective view of the embodiment of FIG. 4;
FIG. 6 is a schematic view of a perspective view of the embodiment of FIG. 4;
FIG. 7 is a schematic perspective view of the joint of the embodiment of FIG. 4;
FIG. 8 is a schematic perspective view of a further view of the joint of the embodiment of FIG. 4;
FIG. 9 is a schematic perspective view of a further view of the joint of the embodiment of FIG. 4;
fig. 10 is a schematic structural diagram of an electronic expansion valve according to an embodiment of the invention.
Reference numerals illustrate:
reference numerals Name of the name Reference numerals Name of the name
10 Electronic expansion valve 311 Embedded segment
100 Valve seat 312 Main body section
110 Port (port) 320 Fixing part
120 Valve cavity 321 Threaded hole
130 Mounting opening 500 Valve port assembly
200 Connecting seat 510 Valve port
220 First guide section 710 Valve head
300 Joint 720 Valve rod
310 Switching part 730 Bearing
310a Switching channel 810 Nut
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 electronic expansion valve 10 is an important component in a refrigeration system and mainly plays roles of throttling, depressurization and flow regulation. In the related art, the electronic expansion valve 10 includes a valve seat assembly, a nut assembly 800, a valve core assembly, a magnetic rotor assembly and other components, the valve seat assembly is internally provided with a valve port assembly 500, the valve port assembly 500 is provided with a valve port 510, when the electronic expansion valve 10 works, the magnetic rotor assembly is driven to rotate by an energizing coil surrounding the valve housing, so as to drive the valve core assembly to axially move, and further control the opening or closing of the valve port 510, thereby realizing the functions of throttling, reducing pressure and regulating flow. The valve seat assembly has a mounting port for the connection of the docking tube, however, in order to secure the client mounting depth, the weight of the valve seat 100 is greatly increased. In the electronic expansion valve 10 provided by the invention, the joint 300 is additionally arranged at the mounting opening 130 of the valve seat 100, the joint 300 is provided with the switching channel 310a, one end of the switching channel 310a is communicated with the mounting opening 130 of the valve seat 100, and the other end of the switching channel is used for communicating with the switching pipe, in order to ensure the mounting depth of a client, the depth of the joint 300 is only required to be set according to the required depth of the client, the depth of the mounting opening 130 of the valve seat 100 can be reduced, so that the embedding section 311 of the joint 300 can be sufficiently accommodated, and therefore, the radial size of the valve seat 100 can be reduced, the material of the valve seat 100 is saved, and the weight is reduced. In addition, the adapter 300 may be a standard piece, commonly used with valve seats 100 of different valve port 510 calibers.
The electronic expansion valve 10 provided by the invention can be applied to a vehicle refrigeration system, and a fluid medium flowing through the electronic expansion valve 10 is a refrigerant for carrying out cold and heat exchange in the vehicle refrigeration system. At this time, the electronic expansion valve 10 is installed at the inlet of the evaporator of the vehicle refrigeration system, and the electronic expansion valve 10 is used as a demarcation element between the high pressure side and the low pressure side of the vehicle refrigeration system to throttle and decompress the high pressure liquid refrigerant, so as to adjust and control the dosage of the liquid refrigerant entering the evaporator, and enable the dosage of the liquid refrigerant to adapt to the requirements of external refrigeration load. Alternatively, the electronic expansion valve 10 may be applied to other types of refrigeration apparatuses, and the fluid medium flowing through the electronic expansion valve 10 may be other fluid medium besides a refrigerant, so long as the electronic expansion valve 10 can achieve 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, a port 110 is formed at one end of the valve seat 100, a valve cavity 120 communicating with the port 110 is formed in the valve seat 100, the valve seat 100 has at least one mounting opening, and the mounting opening 130 communicates with the valve cavity 120; the connector 300 is disposed at the mounting port 130, the connector 300 has a transit passage 310a, and one end of the transit passage 310a communicates with the mounting port 130.
It will be appreciated that the valve seat 100 serves as a carrier for mounting the various components of the electronic expansion valve 10 so that the various components may be assembled to form a unitary body. Specifically, the valve seat 100 may have a cylindrical structure, such as a cylinder, a square cylinder, etc., so that the shape is regular and the processing is easy. Of course, in other embodiments, the valve seat 100 may have other shapes and configurations, which are not illustrated herein. The valve seat 100 has a mounting port 130, and the mounting port 130 communicates with the valve chamber 120 such that the refrigerant can enter or exit the valve chamber 120 from the mounting port 130. The connector 300 has a transfer passage 310a, one end of the transfer passage 310a communicates with the mounting port 130, and the other end communicates with a docking tube, which is provided for the flow of refrigerant into or out of the valve chamber 120. It should be noted that, when the valve seat 100 is provided with only one mounting port 130 for mounting the connector 300, the valve seat 100 is also provided with a butt joint port for directly mounting the butt joint pipe, so that the refrigerant can flow into the valve cavity 120 from the mounting port 130 and then flow out of the valve cavity 120 from the butt joint port, or the refrigerant can flow into the valve cavity 120 from the butt joint port and then flow out of the valve cavity 120 from the mounting port 130. When the valve seat 100 is provided with at least two mounting ports 130 for mounting the connector 300, the refrigerant can flow into the valve cavity 120 from one of the mounting ports 130 and flow out of the valve cavity from the other mounting port 130. Specifically, in one embodiment of the present invention, the depth of the mounting opening 130 is smaller than the depth of the transit passage 310 a. I.e., the depth of the transit passage 310a is greater than the depth of the mounting port 130, the depth of the mounting port 130 can be reduced by only setting the depth of the connector 300 to the depth required by the client in order to ensure the client mounting depth. Thus, the radial dimension of the valve seat 100 can be reduced, thereby saving the material of the valve seat 100 and realizing weight reduction.
The electronic expansion valve 10 provided by the invention comprises a valve seat 100 and at least one joint 300, wherein a port 110 is formed at one end of the valve seat 100, a valve cavity 120 communicated with the port 110 is formed on the valve seat 100, the valve seat 100 is provided with at least one mounting port 130, and the mounting port 130 is communicated with the valve cavity 120; the connector 300 is disposed at the mounting port 130, the connector 300 has a transit passage 310a, and one end of the transit passage 310a communicates with the mounting port 130. In the electronic expansion valve 10 provided by the invention, the joint 300 is additionally arranged at the mounting opening 130 of the valve seat 100, the joint 300 is provided with the switching channel 310a, one end of the switching channel 310a is communicated with the mounting opening 130 of the valve seat 100, and the other end of the switching channel is used for communicating with the switching pipe, in order to ensure the mounting depth of a client, the depth of the joint 300 is only required to be set according to the required depth of the client, the depth of the mounting opening 130 of the valve seat 100 can be reduced, so that the embedding section 311 of the joint 300 can be sufficiently accommodated, and therefore, the radial size of the valve seat 100 can be reduced, the material of the valve seat 100 is saved, and the weight is reduced. In addition, the adapter 300 may be a standard piece, commonly used with valve seats 100 of different valve port 510 calibers.
Referring to fig. 1 to 9, in an embodiment of the invention, the connector 300 includes a adaptor portion 310 and a fixing portion 320 connected to the adaptor portion 310, the adaptor channel 310a is disposed on the adaptor portion 310, and the fixing portion 320 is connected to the valve seat 100. It is to be understood that the adaptor portion 310 and the fixing portion 320 are integrally formed, and of course, in other embodiments, the adaptor portion 310 and the fixing portion 320 may be separately disposed, and the two may be fixedly connected by welding or riveting. The fixing portion 320 is fixedly connected to the valve seat 100 by means of tunnel furnace welding.
Referring to fig. 1 to 9, further, the adaptor 310 includes an insertion section 311 and a main section 312, the insertion section 311 is inserted into the mounting hole 130, and the fixing section 320 is connected to the main section 312. It can be appreciated that the embedded section 311 and the main body section 312 are integrally formed, the depth of the embedded section 311 is not greater than the depth of the mounting opening 130, an interference fit is formed between an outer wall of the embedded section 311 and an inner wall of the mounting opening 130 to prevent leakage when a refrigerant flows through the mounting opening 130, and in other embodiments, a clearance fit is also formed between an outer wall of the embedded section 311 and an inner wall of the mounting opening 130, a sealing ring is sleeved on an outer wall of the embedded section 311, and an outer wall of the sealing ring is in interference fit with an inner wall of the mounting opening 130.
Referring to fig. 4 to 9, in an embodiment of the invention, the connector tapers from the adapter portion 310 to the fixing portion 320. It will be appreciated that as shown in fig. 4 to 9, the adaptor portion 310 and the fixing portion 320 are arranged one above the other below, and the length of the connector 300 gradually decreases from the adaptor portion 310 to the fixing portion 320 in the front-rear direction of the valve seat 100, i.e. the connector 300 takes a shape of a large top-down or a small top-down. By the arrangement, firstly, the material of the joint 300 can be saved, the weight of the electronic expansion valve 10 is further reduced, and secondly, the joint 300 is conveniently positioned in advance during assembly.
Referring to fig. 4, in an embodiment of the invention, the fixing portion 320 has a threaded hole 321. In this embodiment, the fixing portion 320 is provided with a threaded hole 321, and the threaded hole 321 may be matched with other components of the refrigeration system, so as to mount the electronic expansion valve 10 to the refrigeration system.
Referring to fig. 1, in an embodiment of the invention, a gap L1 between the fixing portion 320 and the valve seat 100 is not less than 1mm. A gap L1 of not less than 1mm is left between the fixing portion 320 and the valve seat 100 to hold solder, and when the fixing portion 320 and the valve seat 100 are welded, the solder melts and fills the gap, and after cooling and solidification, the fixing portion 320 and the valve seat 100 are welded together.
Referring to fig. 1 and 4, in an embodiment of the present invention, the number of the mounting ports 130 is 2, and the number of the connectors 300 is 2. It can be understood that the valve seat 100 is provided with two mounting ports 130 for mounting the connectors 300, and correspondingly, each mounting port 130 is provided with one connector 300, and the refrigerant flows into the valve cavity 120 from one mounting port 130 and flows out of the valve cavity from the other mounting port 130. The refrigerant inlet and the refrigerant outlet on the valve seat 100 meet the installation depth requirement of the client by arranging the joint 300, so that the radial size of the valve seat 100 can be further reduced, the material of the valve seat 100 is further saved, and the weight reduction is realized.
In an embodiment of the present invention, the material of the valve seat 100 is aluminum or an aluminum alloy. The valve seat 100 is made of metal aluminum or aluminum alloy material, and the electronic expansion valve 10 can be made lightweight. Of course, in other embodiments, the valve seat 100 may be manufactured from other materials, not shown.
In an embodiment of the invention, the material of the joint 300 is aluminum or an aluminum alloy. The joint 300 is made of metal aluminum or aluminum alloy material, and can reduce the weight of the electronic expansion valve 10. Of course, in other embodiments, the joint 300 may be manufactured from other materials, which are not shown here.
Referring to fig. 10, in an embodiment of the present invention, the electronic expansion valve 10 further includes a connection assembly and a valve core assembly, the connection assembly is disposed in the valve cavity 120, the connection assembly has a valve port 510, and the valve core assembly is movably disposed in the connection assembly, so as to conduct or block the mounting port 130 from the valve port 510. Specifically, the connecting assembly includes a connecting seat 200, the outer wall of the upper end of the connecting seat 200 and the inner wall of the port 110 are both provided with threads, so that the connecting seat 200 is in threaded connection with the valve seat 100, and the connecting seat 200 and the valve seat 100 can be fixedly connected with each other in a connection manner such as welding, riveting, clamping or interference fit, so that excessive limitation is not made. The connecting seat 200 is provided with a channel, the connecting assembly further comprises a valve port assembly 500, the valve port assembly 500 is arranged at the lower end of the connecting seat 200, the valve port 510 is arranged at the valve port assembly 500, the inside of the connecting seat 200 is hollow and is communicated with the valve port 510, at least one through hole is arranged on the side wall of the connecting seat 200, the through hole is communicated with the inner space and the outer space of the connecting seat 200 to form the channel, the mounting port 130 can be communicated with the valve port 510 through the channel, and therefore a refrigerant can enter the valve cavity 120 from the switching channel 310a through the mounting port 130 and flows to a refrigerant outlet through the channel through the valve port 510.
Referring to fig. 10, the valve element assembly is movably disposed on the connecting assembly for conducting or blocking the channel from the valve port 510. It will be appreciated that the connector block 200 has a first guide section 220, the first guide section 220 being adapted to guide movement of the valve cartridge assembly. Specifically, the valve core assembly comprises a valve head 710 and a valve rod 720, wherein the valve rod 720 is rotatably connected to the valve head 710, the valve rod 720 is connected with the valve head 710 through a bearing 730, and the valve head 710 extends into the first guide section 220 and is in guide fit with the first guide section 220. When the valve stem 720 is rotated by the power source, the valve stem 720 may drive the valve head 710 to move up and down relative to the first guide section 220, thereby approaching or moving away from the valve port 510. When the valve head 710 is mated with the valve port assembly 500, the passageway is blocked by the valve head 710, thereby blocking the fluid medium within the electronic expansion valve 10 from being expelled outwardly through the valve port 510; when the valve head 710 is separated from the valve port assembly 500, the passageway communicates with the valve port 510 and fluid medium within the electronic expansion valve 10 may be discharged outwardly through the valve port 510. The valve port assembly 500 is disposed at the lower end of the first guide section 220 of the connection seat 200, and the valve head 710 is hollow and communicates with the valve port 510, i.e. the inner space of the valve head 710 may communicate with the second cavity 122 through the valve port 510.
The working principle of the electronic expansion valve 10 is specifically as follows:
the stator assembly of the electronic expansion valve 10 generates a magnetic field after being electrified, the rotor assembly made of magnetic materials is driven by the magnetic field to rotate, the rotor assembly is fixedly connected with the valve rod 720, the rotation of the rotor assembly drives the valve rod 720 to rotate, a threaded matching relationship is formed between the valve rod 720 and the nut 810, the nut 810 is fixedly arranged on the connecting seat 200, and therefore the rotation of the valve rod 720 relative to the nut 810 drives the valve rod 720 to move up and down relative to the nut 810, and the stator assembly drives the rotor assembly to move, and the rotor assembly drives the valve core assembly to move; the valve head 710 moves towards the valve port 510 under the drive of the valve rod 720, and when the valve head 710 blocks the channel from the valve port 510, the electronic expansion valve 10 is closed; when the valve needle releases the closing of the channel, that is, the channel and the valve port 510 are mutually communicated, the electronic expansion valve 10 is opened, and the flow of the fluid medium is reduced due to the relatively small opening caliber of the channel in the electronic expansion valve 10, so that the throttling and depressurization process of the electronic expansion valve 10 on the fluid medium is realized.
The invention also proposes a refrigeration device comprising an electronic expansion valve 10 according to any of the embodiments described above. The refrigeration system may be a refrigeration system of an air conditioner, a refrigerator, a heat pump water heater or other refrigeration and heating equipment, and the electronic expansion valve 10 can control the flow of a refrigeration medium in the refrigeration system. The specific structure of the electronic expansion valve 10 refers to the above embodiment, and since the refrigeration device 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 foregoing description is only of the preferred embodiments of the present invention and is not intended to limit the scope of the invention, and all equivalent structural changes made by the description of the present invention and the accompanying drawings or direct/indirect application in other related technical fields are included in the scope of the invention.

Claims (12)

1. An electronic expansion valve, comprising:
a valve seat, one end of which is provided with a port, the valve seat is provided with a valve cavity communicated with the port, the valve seat is provided with at least one mounting port, and the mounting port is communicated with the valve cavity; and
the connector is arranged at the mounting port and is provided with a switching channel, and one end of the switching channel is communicated with the mounting port.
2. The electronic expansion valve of claim 1, wherein the depth of the mounting port is less than the depth of the transfer passage.
3. The electronic expansion valve of claim 2, wherein said fitting includes a transition portion and a securing portion connected to said transition portion, said transition passage being provided in said transition portion, said securing portion being connected to said valve seat.
4. The electronic expansion valve of claim 3, wherein said adapter portion comprises an embedded section and a main body section, said embedded section being embedded in said mounting port, said securing portion being connected to said main body section 312.
5. The electronic expansion valve of claim 3, wherein the fitting tapers from the adapter portion to the fixed portion.
6. The electronic expansion valve of claim 3, wherein the securing portion has a threaded bore.
7. The electronic expansion valve of claim 3, wherein a gap between the fixed portion and the valve seat is not less than 1mm.
8. The electronic expansion valve of any of claims 1 to 7, wherein the number of mounting ports is 2 and the number of fittings is 2.
9. The electronic expansion valve according to any of claims 1 to 7, wherein the valve seat is made of aluminum or an aluminum alloy.
10. The electronic expansion valve according to any of claims 1 to 7, wherein the joint is made of aluminum or an aluminum alloy.
11. The electronic expansion valve of any of claims 1 to 7, further comprising a connector assembly disposed in the valve chamber, the connector assembly having a valve port, and a valve cartridge assembly movably disposed in the connector assembly for communicating or blocking the mounting port from the valve port.
12. A refrigeration device comprising an electronic expansion valve according to any one of claims 1 to 10.
CN202210890186.7A 2022-07-27 2022-07-27 Electronic expansion valve and refrigeration equipment Pending CN117515192A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN202210890186.7A CN117515192A (en) 2022-07-27 2022-07-27 Electronic expansion valve and refrigeration equipment
PCT/CN2023/098646 WO2024021886A1 (en) 2022-07-27 2023-06-06 Electronic expansion valve and refrigeration apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202210890186.7A CN117515192A (en) 2022-07-27 2022-07-27 Electronic expansion valve and refrigeration equipment

Publications (1)

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CN117515192A true CN117515192A (en) 2024-02-06

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Country Status (2)

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CN (1) CN117515192A (en)
WO (1) WO2024021886A1 (en)

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10292876A (en) * 1997-04-18 1998-11-04 Fujitsu General Ltd Electronic expansion valve
CN102853596B (en) * 2011-06-27 2015-02-18 浙江三花股份有限公司 Electronic expansion valve
CN211202920U (en) * 2019-12-16 2020-08-07 东风汽车集团有限公司 Valve seat of electronic expansion valve for vehicle, electronic expansion valve for vehicle and vehicle
CN215370996U (en) * 2021-07-30 2021-12-31 广东美的制冷设备有限公司 Electronic expansion valve and air conditioner
CN114352741A (en) * 2022-01-20 2022-04-15 广东威灵电机制造有限公司 Electronic expansion valve, refrigeration equipment and automobile
CN217784253U (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

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