WO2022161457A1 - 电磁切换阀 - Google Patents

电磁切换阀 Download PDF

Info

Publication number
WO2022161457A1
WO2022161457A1 PCT/CN2022/074577 CN2022074577W WO2022161457A1 WO 2022161457 A1 WO2022161457 A1 WO 2022161457A1 CN 2022074577 W CN2022074577 W CN 2022074577W WO 2022161457 A1 WO2022161457 A1 WO 2022161457A1
Authority
WO
WIPO (PCT)
Prior art keywords
plate
valve body
valve
shaped
main body
Prior art date
Application number
PCT/CN2022/074577
Other languages
English (en)
French (fr)
Inventor
毕阔
程灿祥
张二龙
Original Assignee
浙江三花智能控制股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 浙江三花智能控制股份有限公司 filed Critical 浙江三花智能控制股份有限公司
Publication of WO2022161457A1 publication Critical patent/WO2022161457A1/zh

Links

Images

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
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
    • F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
    • F16K31/0603—Multiple-way valves
    • F16K31/061—Sliding valves
    • F16K31/0617—Sliding valves with flat slides
    • 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
    • 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
    • F16K27/048—Electromagnetically actuated valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • 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
    • F16K3/314—Forms or constructions of slides; Attachment of the slide to the 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
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
    • F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B41/00—Fluid-circulation arrangements
    • F25B41/20—Disposition of valves, e.g. of on-off valves or flow control valves
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating

Definitions

  • the invention relates to the field of refrigeration control, in particular to an electromagnetic switching valve.
  • Electromagnetic switching valves are used in refrigeration systems, and are generally used to switch the refrigerant flow path to change the flow direction of the refrigerant.
  • FIG. 1 is a schematic structural diagram of a typical electromagnetic four-way valve used in a refrigeration system in the background
  • FIG. 2 is a longitudinal cross-sectional view of a main valve of an electromagnetic four-way valve in the background.
  • a conventional electromagnetic four-way valve can generally be used in a refrigeration system such as an air conditioning system, which includes a main valve 10' and a pilot valve 20'; the main valve 10' includes a valve body 11'.
  • the valve body 11' is generally cylindrical, and a D interface is opened on its peripheral wall for connecting the exhaust pipe D.
  • a valve seat 13' is fixedly connected to the peripheral wall on the side opposite to the D interface, and the valve seat 13' is opened.
  • the valve body 11' is connected with an exhaust pipe D (connected to the high-pressure area) connected to the exhaust port of the compressor, a suction pipe S (connected to the low-pressure area) connected to the suction port of the compressor, and the indoor heat exchanger 30 '
  • the sliding block 15' and the piston 16', the valve seat 13' contacts and supports the sliding block 15', forming a pair of motion pairs, and the piston 16' and the valve body 11' form a pair of motion pairs.
  • the small valve body of the pilot valve 20' is fixedly provided with a capillary d connected to the exhaust pipe D of the main valve 10', that is, the inner cavity of the pilot valve 20' is also communicated with the high pressure area of the main valve accordingly;
  • the valve seat has three valve ports, and from left to right are respectively fixed with capillary e, capillary s and capillary c connected to the left end cover of the main valve 10', the suction pipe S, and the right end cover of the main valve 10';
  • a sleeve is fixed on the right end of the small valve body of the valve 20', and an electromagnetic coil 50' is arranged outside the sleeve.
  • the electromagnetic coil 50' is not energized, and the core iron in the inner cavity of the pilot valve 20' drives the sliding bowl to the left position under the action of the return spring force, so that the capillary e and capillary s are
  • the capillary c and the capillary d communicate with each other, so that the left cavity of the main valve 10' is a low pressure area, and the right cavity is a high pressure area. ' Push it to the left so that the connecting pipe E and the suction pipe S are connected, and the exhaust pipe D is connected with the connecting pipe C.
  • the circulation path of the refrigerant in the refrigeration system is: compressor exhaust port ⁇ exhaust pipe D ⁇ valve body 11 Valve cavity ⁇ connection C ⁇ outdoor heat exchanger 40' ⁇ throttle element 60' ⁇ indoor heat exchanger 30' ⁇ connection E ⁇ slider 15' inner cavity ⁇ suction pipe S ⁇ compressor suction port, refrigeration system in refrigeration working state;
  • the electromagnetic coil 50' When the refrigeration system needs heating, the electromagnetic coil 50' is energized, and the core iron in the inner cavity of the pilot valve 20' overcomes the force of the return spring to drive the sliding bowl to move to the right, so that the capillary c and the capillary s are connected, and the capillary e and the capillary d are connected. Therefore, the left chamber of the main valve 10' is a high-pressure area, and the right chamber is a low-pressure area, and a pressure difference is formed between the left and right chambers of the main valve 10', and the slider 15' and the piston 16' are pushed to the right side, so that the nozzle C and the suction valve 16' are pushed to the right.
  • the air pipe S is connected, and the exhaust pipe D is connected with the connecting pipe E.
  • the circulation path of the refrigerant in the refrigeration system is: compressor exhaust port ⁇ exhaust pipe D ⁇ valve body 11 valve cavity ⁇ connecting pipe E ⁇ indoor heat exchanger 30' ⁇ throttle element 60' ⁇ outdoor heat exchanger 40' ⁇ connector C ⁇ inner cavity of slider 15' ⁇ suction pipe S ⁇ compressor suction port, the refrigeration system is in heating working state.
  • the main valve 10' can be reversed through the combined action of the pilot valve 20' and the electromagnetic coil 50', thereby switching the flow direction of the refrigerant and switching the heating and cooling working states of the refrigeration system.
  • the object of the present invention is to provide an electromagnetic switching valve with relatively low manufacturing cost of the valve body.
  • at least one embodiment of the present invention adopts the following technical solutions:
  • An electromagnetic switching valve characterized in that it includes a valve body, the valve body includes a first interface portion and at least two second interface portions, and the valve body includes a valve body main body portion, a first sleeve portion, a second interface portion, and a valve body.
  • the first sleeve part is fixedly connected with the valve body main body part
  • the second sleeve part is fixedly connected with the valve body main body part
  • the longitudinal section of the first sleeve part is surrounded by
  • the area of the valve body is smaller than the area enclosed by the longitudinal section of the main body part of the valve body
  • the area enclosed by the longitudinal section of the second sleeve part is smaller than the area enclosed by the longitudinal section of the main body part of the valve body
  • the main body part includes a first plate-shaped part and a surrounding part, the first plate-shaped part and the surrounding part are integrally formed, or the first plate-shaped part and the surrounding part are fixedly connected in an integral structure, the The first interface portion is provided on the surrounding portion, and the at least two second interface portions are provided on the first plate-shaped portion.
  • the valve body includes a valve body main body, a first sleeve part, and a second sleeve part, wherein the valve body main part is made of stainless steel profiles or stainless steel plates by rolling, and the material cost is less than The processing cost is relatively low.
  • FIG. 1 is a schematic structural diagram of a background art electromagnetic four-way valve used in a refrigeration system
  • FIG. 2 is a longitudinal sectional view of a main valve of an electromagnetic four-way valve in the background
  • FIG. 3 is a schematic diagram of the appearance of the electromagnetic switching valve provided by the first embodiment of the present invention.
  • FIG. 4 is a schematic cross-sectional view of the main valve of the electromagnetic switching valve provided by the first embodiment of the present invention.
  • FIG. 5 is a schematic structural diagram of the main body part of the valve body provided by the first embodiment of the present invention.
  • valve body main body the valve seat, and the slider structure provided by the first embodiment of the present invention
  • FIG. 7 is a schematic structural diagram of the main body of the valve body provided by the second embodiment of the present invention before processing
  • FIG. 8 is a schematic structural diagram of a valve body main body, a valve seat, and a slider provided by the third embodiment of the present invention.
  • valve body main body the valve seat, and the slider structure provided by the third embodiment of the present invention.
  • FIG. 10 is a schematic structural diagram of the main body of the valve body, the valve seat, and the slider provided by the fourth embodiment of the present invention.
  • valve body main body, valve seat, and slider structure provided by the fourth embodiment of the present invention.
  • FIG. 12 is a schematic structural diagram of a valve body main body, a valve seat, and a slider provided by the fifth embodiment of the present invention.
  • Figure 13 is a structural cross-sectional view of the valve body main body, the valve seat, and the slider provided by the fifth embodiment of the present invention.
  • Figure 14 is a cross-sectional view of a valve body main body, a valve seat, and a slider structure provided by yet another embodiment of the present invention.
  • 15 is a cross-sectional view of the main valve of the electromagnetic four-way valve provided by the sixth embodiment of the present invention.
  • 16 is a front view of the structure of the piston connecting rod assembly provided by the sixth embodiment of the present invention.
  • 17 is a schematic structural diagram of the connecting rod provided by the sixth embodiment of the present invention before assembly;
  • FIG. 18 is a schematic perspective view of the structure of the piston connecting rod assembly provided by the sixth embodiment of the present invention.
  • FIG. 19 is a cross-sectional view of a valve body according to a sixth embodiment of the present invention.
  • FIG. 3 is a schematic diagram of the appearance of the electromagnetic switching valve provided by the first embodiment of the present invention
  • FIG. 4 is a cross-sectional schematic diagram of the main valve of the electromagnetic switching valve provided by the first embodiment of the present invention.
  • the electromagnetic switching valve in this embodiment is a four-way valve, which is used for switching the flow direction of the refrigerant in the refrigeration system.
  • the electromagnetic switching valve includes a valve body 1, which can be made of metal such as stainless steel.
  • the valve body 1 includes a valve body main body 11 and a first sleeve portion 12.
  • the second sleeve part 13 .
  • the valve body main body 11 is made of stainless steel plate. Specifically, a section of a stainless steel profile with a square cross-section can be cut and processed.
  • the valve body main body 11 includes a first plate-shaped portion 111 and a surrounding portion 112.
  • the first plate-shaped portion 111 is one surface of the tetrahedron, and the surrounding portion 112 is the other three surfaces of the tetrahedron.
  • the valve body main part 11 is provided with a first interface part 1121 for fixedly connecting with the first connecting pipe 31 .
  • the first plate-shaped portion 111 is provided with three second interface portions 1122 , which are respectively used for fixed connection with the second connecting pipe 32 , the third connecting pipe 33 and the fourth connecting pipe 34 .
  • the first interface portion 1121 and the three second interface portions 1122 are disposed opposite to each other.
  • this embodiment is a four-way valve, so the number of the second interface parts 1122 is set to three, while in other applications, such as a three-way valve, only two second interface parts can be set.
  • a valve seat 2 is fixedly connected to the inner side of the first plate-shaped portion 111 .
  • the valve seat 2 is generally plate-shaped, and is provided with a through hole portion 21 corresponding to the second interface portion 1122 one-to-one.
  • the valve seat 2 and the valve body main body 11 can be fixed and connected in an integrated structure by welding, or can be fixed by bonding.
  • Both ends of the valve body main body 11 are respectively connected with a cylindrical first sleeve part 12 and a second sleeve part 13 , and both the first sleeve part 12 and the second sleeve part 13 are open cylindrical with one end closed.
  • the first sleeve part 12 is fixedly connected with one end of the valve body main body part 11 through the first connecting piece 71
  • the second sleeve part 13 is fixed with the other end part of the valve body main body part 11 through the second connecting piece 72 connect.
  • first connecting piece and the second connecting piece are for connecting the sleeve part and the valve body main part more conveniently, because the valve body main part is in the structure of at least one plate-shaped part, which The cross section can be rectangular, square, trapezoidal or other irregular shapes, while the sleeve portion is generally circular in cross section, so that the connection can be conveniently carried out using the connecting piece.
  • the open end of the sleeve portion can also be stretched out to a shape suitable for the cross-sectional contour of the main body portion of the valve body.
  • One end of the opening of the valve body and one end of the valve body main body are fixed by welding, for example.
  • the main body part 11 of the valve body, the first sleeve part 12 and the second sleeve part 13 substantially enclose a valve cavity, and the refrigerant in the valve cavity can pass through the first connecting pipe 31 , the second connecting pipe 32 , the third connecting pipe 32 and the third connecting pipe
  • the nozzle 33 and the fourth nozzle 34 flow.
  • the piston connecting rod assembly and the slider described below it only needs to satisfy that when the piston connecting rod assembly and the slider described below are assembled, it can ensure that the slider can slide on the main body part of the valve body or the valve seat, and the piston part can be in the first position.
  • the inner cavity of the first sleeve part and the second sleeve part can be moved.
  • a slider 6 Inside the valve body 1 , a slider 6 , a piston assembly and a connecting rod 5 are arranged, wherein the piston assembly includes a first piston 41 and a second piston 42 .
  • the first piston 41 is fixedly connected to one end of the connecting rod 5
  • the second piston 42 is fixedly connected to the other end of the connecting rod 5 .
  • the connecting rod 5 is provided with a through hole, which is engaged with the sliding block 6 to limit the position. In this way, when the connecting rod 5 is displaced in the left and right directions, the sliding block 6 can be driven to move together.
  • the slider 6 has a substantially inverted bowl-shaped structure. In the position shown in FIG. 4 , the inner cavity of the slider 6 conducts the space between the second nozzle 32 and the third nozzle 33 .
  • the inner cavity of the slider 6 can also conduct the space in the third connecting pipe 33 and the fourth connecting pipe 34 through.
  • the first piston 41 can slide along the inner wall of the first sleeve part 12, and the second piston 42 can slide along the inner wall of the second sleeve part 13, so that the piston assembly divides the valve cavity into the first valve cavity 411,
  • the differential pressure force can push the piston assembly, the connecting rod and the slider to displace, so that the first valve
  • the second nozzle 32 is connected to the inner space of the third nozzle 33 , or the inner space of the third nozzle 33 and the fourth nozzle 34 is connected to each other.
  • a limit structure needs to be set up, so that the piston assembly, the connecting rod and the slider can move to the left and move to the right.
  • a first limiting portion 121 can be provided on the outer peripheral wall of the first sleeve portion 12.
  • the outer peripheral wall of the first sleeve portion 12 on the side close to the bottom wall of the first sleeve portion 12 can be formed by rolling. Protruding inward, when the first piston 41 moves to the left, it can abut with the first limiting portion 121 to achieve positioning.
  • the outer peripheral wall of the second sleeve portion 13 on the side close to the bottom wall of the second sleeve portion 13 can be protruded inwardly to form the second limiting portion 131.
  • the second piston 42 moves to the right , which can abut with the second limiting portion 131 to achieve positioning.
  • the first sleeve part 12 and the second sleeve part 13 can also be respectively set as unequal diameter structures, and the inner diameter of the opening side, that is, the part that cooperates with the piston bowl, is larger than that of the sleeve.
  • the inner diameter of the sealing side of the cylinder part in this way, a limiting part is formed between the two different inner diameters. Since the outer diameter of the piston bowl is adapted to the inner diameter of the large diameter part of the sleeve part, the sealing side of the sleeve part is relatively small. For the part with small inner diameter, the piston bowl cannot pass through, so as to achieve the purpose of positioning.
  • FIG. 5 is a schematic structural diagram of the main body of the valve body provided by the first embodiment of the present invention
  • FIG. 6 is the main body of the valve body and the valve seat, slide Block structure cutaway diagram.
  • the valve body main body 11 is integrally formed of stainless steel material. Specifically, a section of a prefabricated stainless steel pipe with a square cross-section can be used to cut one of the sections.
  • the valve body main body 11 includes a first plate-shaped portion 111 and a surrounding part 112 , in this embodiment, the other three sides except the first plate-shaped part 111 are the surrounding part 112 .
  • Three second interface portions 1122 are machined on the first plate-shaped portion 111 , and first interface portions 1121 are machined at positions opposite to the first plate-shaped portion 111 on the surrounding portion 112 .
  • the surrounding portion 112 further includes a second plate-shaped portion 1123 , the second plate-shaped portion 1123 is disposed opposite to the first plate-shaped portion 111 , and the first interface portion 1121 is located on the second plate-shaped portion 1123 .
  • the second plate-shaped portion 1123 may be either a flat plate-like structure or a curved plate-like structure.
  • the valve seat 2 has a plate-like structure and has a through hole portion 21 . The number and position of the through hole portion 21 correspond to the second interface portion 1122 .
  • the valve seat 2 is fixedly connected to the inner side of the first plate-shaped portion 111, specifically, a laser welding method or a glue bonding method can be used for fixing.
  • the second plate-shaped part 1123 can be protruded toward the direction of the first interface part 1121 , and the first interface part 1121 can be provided on the convex part of the second plate-shaped part 1123 .
  • Part of the second plate-shaped portion 1123 may be raised upward, as shown in FIG. 14 , which is a cross-sectional view of a valve body main body, a valve seat, and a slider structure according to another embodiment of the present invention.
  • the second plate-shaped portion 1123 protrudes upward to form a top protruding portion 11231 , and the first interface portion 1121 is disposed on the top protruding portion 11231 .
  • the entire second plate-shaped portion 1123 may be in the shape of an upwardly convex curved surface.
  • the advantage of this arrangement is that the distance between the first interface portion 1121 and the first plate-like portion 111 can be relatively farther, or in other words, after the slider and the connecting rod components are assembled, the distance between the first interface portion 1121 and the first interface portion 1121 is relatively farther.
  • the top wall of the slider has a relatively farther distance, and when the high-pressure refrigerant flows in from the first nozzle 31, there is a relatively larger space, which is beneficial to optimize the flow on the high-pressure side.
  • the protruding structure of the second plate-shaped portion 1123 is also applicable to the second, third, fourth, and fifth embodiments described below, which will not be repeated.
  • the valve body structure provided in this embodiment adopts the valve body main body part with a square cross-section and the two sleeve parts to be directly or indirectly connected to form the valve body structure.
  • the valve body main body part is directly made of stainless steel profiles. relatively cheap.
  • the first plate-shaped part itself is roughly plate-shaped, and the valve seat is also plate-shaped, which can be easily welded and fixed, and it is no longer necessary to process a D-shaped valve seat in the longitudinal section as described in the background art, which is different from the arc-shaped valve seat.
  • the inner wall of the main valve is matched with the arc surface, which can relatively save a lot of material cost and processing cost.
  • FIG. 7 is a schematic structural diagram of the main body of the valve body provided by the second embodiment of the present invention before processing.
  • the valve body main body 11 is not made of a prefabricated stainless steel pipe with a square cross-section, but is formed by rolling a stainless steel sheet.
  • the stainless steel plate 110 is prefabricated first, then four holes are punched in the plate, and then the four holes are flanged to form the first interface portion 1121 and the three second interface portions 1122 respectively, and then the stainless steel plate is drilled. 110 is bent to form a square, and is fixed by welding at the seam.
  • a second plate-shaped portion 1123 may be provided on the surrounding portion 112, and the second plate-shaped portion 1123 and the first plate-shaped portion 111 may be disposed opposite to each other.
  • the first interface portion 1121 is located on the second plate portion 1123 .
  • the valve body structure provided in this embodiment is processed by rolling and folding the stainless steel plate.
  • the plate can be punched and flanged first, and then rolled and folded into a square shape, and the processing cost is relatively low.
  • the first plate-shaped part itself is roughly plate-shaped, and the valve seat is also plate-shaped, which can be easily welded and fixed, and it is no longer necessary to process a D-shaped valve seat in the longitudinal section as described in the background art, which is different from the arc-shaped valve seat.
  • the inner wall of the main valve is matched with the arc surface, which can relatively save a lot of material cost and processing cost.
  • FIG. 8 is a schematic structural diagram of the valve body main body, valve seat and slider provided by the third embodiment of the present invention
  • FIG. 9 is the valve body main body and the valve body provided by the third embodiment of the present invention. Sectional view of valve seat and slider structure.
  • the valve body main body portion 11 is made of a relatively thicker material, and the inner side surface of the first plate-shaped portion 111 is directly used as the mating surface that matches the slider 6 . That is, an independent valve seat component is no longer provided, but the first plate-shaped portion 111 simultaneously assumes the function of the valve seat, and the slider 6 slides directly on the inner surface of the first plate-shaped portion 111 .
  • the valve body structure provided in this embodiment adopts the valve body main body part with a square cross-section and the two sleeve parts are directly or indirectly connected to form the valve body structure, especially the valve body main body part is directly made of stainless steel profiles, and Compared with the first embodiment, the thickness is larger, so that the valve body has higher pressure resistance performance. Moreover, due to the relatively thick thickness, a separate valve seat structure can no longer be provided, but the first plate-shaped part of the main body of the valve body can directly assume the function of the valve seat, that is, after surface processing, the slider is directly placed in the valve seat. The inner side surface of the first plate-shaped portion slides to realize the switching function.
  • the structure of this structure is relatively simple, and it is convenient for mass production.
  • the first plate-shaped part itself is roughly plate-shaped, and the valve seat is also plate-shaped, which can be easily welded and fixed, and it is no longer necessary to process a D-shaped valve seat in the longitudinal section as described in the background art, which is different from the arc-shaped valve seat.
  • the inner wall of the main valve is matched with the arc surface, which can relatively save a lot of material cost and processing cost.
  • FIG. 10 is a schematic structural diagram of the valve body main body, valve seat and slider provided by the fourth embodiment of the present invention
  • FIG. 11 is the valve body main body and the valve body provided by the fourth embodiment of the present invention. Sectional view of valve seat and slider structure.
  • the valve body main body 11 adopts a split structure, that is, the first plate-shaped part 111 and the surrounding part 112 are separately processed parts, so that the first plate-shaped part 111 is It can be made of a relatively thicker stainless steel plate, and three second interface parts 1122 are processed for fixed connection with the second nozzle 32, the third nozzle 33 and the fourth nozzle 34 of the four-way valve.
  • the first plate-shaped part The inner side of 111 is used to cooperate with the slider 6 .
  • the first plate-shaped part is processed and formed by a separate component, and an appropriate thickness can be selected and surface processed, which is suitable for mass production, and it is relatively easy to ensure that its surface is suitable for the sliding fit of the slider.
  • the surrounding part is formed by bending or crimping a plate-shaped part, and the surface treatment of the surrounding part does not need to be very strict, which is beneficial to mass production and processing, and can save manufacturing costs.
  • FIG. 12 is a schematic structural diagram of the valve body main body, valve seat and slider provided by the fifth embodiment of the present invention
  • FIG. 13 is the valve body main body and the valve body provided by the fifth embodiment of the present invention.
  • Sectional view of valve seat and slider structure The main body portion 11 of the valve body is integrally formed with a stainless steel profile, and includes a first plate-like portion 111 and a surrounding portion 112 , wherein the first plate-like portion 111 is provided with a penetrating void portion 1112 , and the valve seat 2 is embedded in the void portion 1112 , and It is fixedly connected to the first plate-shaped portion 111 by welding.
  • the material thickness of the valve seat 2 can be set to be larger than the material thickness of the first plate-shaped portion 111 , and after the valve seat 2 is assembled with the first plate-shaped portion 111 , both relative to the first plate-shaped portion 111
  • the inner side surface of the portion 111 is convex, and is also convex relative to the outer side surface of the first plate-shaped portion 111 .
  • the valve body structure provided in this embodiment adopts the valve body main body part with a square cross-section and the two sleeve parts to be directly or indirectly connected to form the valve body structure.
  • the valve body main body part is directly made of stainless steel profiles. relatively cheap.
  • a hole is opened in the first plate-shaped part, and the valve seat is embedded and assembled to fix it.
  • the valve seat itself can be processed by selecting an appropriate thickness, and the main body of the valve body is made of profiles and has high compressive strength.
  • connecting rod structure with reference to FIGS. 15-19 .
  • the connecting rod structures described in the following embodiments can be applied to the valve body structures provided in the first to fifth embodiments, but are not limited to the valve body structures of the above-mentioned embodiments.
  • the derivative embodiments made on the basis of the above-mentioned embodiments are also suitable for the following embodiments.
  • Figure 15 is a sectional view of the main valve of the electromagnetic four-way valve provided by the sixth embodiment of the present invention
  • Figure 16 is a front view of the structure of the piston connecting rod assembly provided by the sixth embodiment of the present invention
  • Figure 17 Fig. 18 is a schematic perspective view of the structure of the connecting rod assembly provided by the sixth embodiment of the present invention
  • Fig. 19 is a sectional view of the valve body provided by the sixth embodiment of the present invention .
  • the electromagnetic switching valve in this embodiment is a four-way valve, which is used for switching the flow direction of the refrigerant in the refrigeration system.
  • the solenoid switching valve includes a valve body 1, which can be made of metal such as stainless steel.
  • the valve body 1 includes a valve body main body 11, a first sleeve portion 12, a Two sleeve parts 13 .
  • the main body 11 of the valve body is made of stainless steel plate. Specifically, a section of a stainless steel profile with a square cross-section can be cut and processed, or a stainless steel plate can be bent and fixedly connected.
  • the valve body main part 11 includes a first plate-shaped part 111 and a surrounding part 112 , wherein the first plate-shaped part 111 is one surface of the tetrahedron, and the surrounding part 112 is the other three surfaces of the tetrahedron.
  • the surrounding portion 112 is not limited to being surrounded by three surfaces, and may be in the shape of a curved surface as a whole, or may include a second plate-shaped portion as described in the first embodiment.
  • the valve body main part 11 is provided with a first interface part 1121 for fixedly connecting with the first connecting pipe 31 . In order to facilitate fixing with the first connecting pipe 31 .
  • the first plate-shaped portion 111 is provided with three second interface portions 1122 , which are respectively used for fixed connection with the second connecting pipe 32 , the third connecting pipe 33 and the fourth connecting pipe 34 .
  • the first interface portion 1121 and the three second interface portions 1122 are disposed opposite to each other. It should be noted that this embodiment is a four-way valve, so the number of the second interface parts 1122 is set to three, while in other applications, such as a three-way valve, only two second interface parts can be set.
  • a valve seat 2 is fixedly connected to the inner side of the first plate-shaped portion 111 .
  • the valve seat 2 is generally plate-shaped, and is provided with a through hole portion 21 corresponding to the second interface portion 1122 one-to-one.
  • valve seat 2 and the valve body main body 11 can be fixed and connected in an integrated structure by welding, or can be fixed by bonding. Both ends of the valve body main body 11 are respectively connected with a cylindrical first sleeve part 12 and a second sleeve part 13 , and both the first sleeve part 12 and the second sleeve part 13 are open cylindrical with one end closed. , the first sleeve part 12 is fixedly connected with one end of the valve body main body part 11 through the first connecting piece 71 , and the second sleeve part 13 is fixed with the other end part of the valve body main body part 11 through the second connecting piece 72 connect.
  • the piston assembly includes a first piston 41 and a second piston 42 .
  • the first piston 41 and the second piston 42 are respectively fixedly connected to both ends of the connecting rod 5 .
  • the connecting rod 5 has a generally plate-like structure and includes a connecting rod body portion 59 .
  • the connecting rod body portion 59 is provided with a through-hole portion 56 penetrating through, and the through-hole portion 56 is used for snap fit with the slider 6, that is, the connecting rod 5 is buckled on the slider 6 through the through-hole portion 56, so that the slider 6 and link 5 can move synchronously.
  • the connecting rod 5 includes a first end portion 52 and a second end portion 53 , wherein the first end portion 52 forms a first end portion connecting portion 521 and a first end portion connecting portion 522 bent in different directions.
  • the first end connecting part 521 and the first end connecting part 522 can be bent in the direction perpendicular to the plate surface of the connecting rod body part 59 and in the opposite direction, so that the first end part is connected with one part 521 extends in one direction perpendicular to the connecting rod body part 59 , and the first end connecting part 522 extends in another direction perpendicular to the connecting rod body part 59 .
  • the first end connecting part 521 and the first end connecting part 522 are both provided with connecting holes.
  • the first piston 41 is also provided with connecting holes at corresponding positions. In this way, the first piston 41 is fixedly connected with the first midsection 521 .
  • the first piston 41 itself is composed of parts such as a piston bowl, a piston gasket, a pressure ring, etc., and is riveted and fixed by a pair of first riveting members 573 .
  • the first piston 41 and the connecting rod are riveted and fixed by a pair of second riveting members 571 .
  • the second piston 42 itself is riveted and fixed by the third riveting member 583
  • the second piston 42 and the connecting rod are riveted by a pair of fourth riveting members 581/582. fixed.
  • the connecting rod has better strength when it is fixedly connected with the piston described below, and the force is relatively uniform.
  • the second end portion 53 of the connecting rod is also provided with a second end portion connecting portion 531 and a second end portion connecting portion 532, and its structure and connection method can be connected with the first end portion 52. The method is the same and will not be repeated here.
  • the first piston 41 is fixedly connected with one end of the connecting rod
  • the second piston 42 is fixedly connected with the other end of the connecting rod.
  • the first piston 41 is slidably fitted with the inner wall of the first sleeve portion 12
  • the second piston 42 is slidably fitted with the inner wall of the second sleeve portion 13 .
  • a kinematic pair is formed between the piston and the sleeve, thereby isolating the inner space of the sleeve.
  • At least one extension portion 51 is provided on both sides of the connecting rod body portion 59 .
  • the extending portion 51 extends outward from one side portion of the connecting rod body portion 59 .
  • the connecting rod body portion is used as a reference and extends toward the outside relative to the connecting rod body portion 59. Since the connecting rod body portion is generally symmetrical in structure and has a centerline S, the maximum distance from the extension portion 51 to the centerline S is L. . Since the connecting rod is coaxial with the first sleeve part and the second sleeve part, L is greater than the radius D/2 of any sleeve part, where D is the diameter of the sleeve part, as shown in FIG. 15 .
  • the extending portion 51 includes a limiting portion 54 .
  • the limiting portion 54 is formed at both ends of the extending portion 51 in the longitudinal direction. The limiting portion 54 is used to abut against the end portion on the opening side of the first sleeve portion 12 . catch.
  • an extension portion 51 is extended from one side surface of the connecting rod body portion 59.
  • two extension portions can also be extended from the same side surface, which are respectively used for connecting with the first sleeve portion. Positioning on the side of 12, and positioning on the side of the second sleeve part 13.
  • an extension part can be provided on both sides of the connecting rod body part 59. The corresponding embodiment is shown in FIG. 16 .
  • the first sleeve portion 12 is fixedly connected to one end of the valve body main body portion 11 through the first connecting member 71
  • the second sleeve portion 13 is connected to the valve body through the second connecting member 72
  • the other end of the main body portion 11 is fixedly connected. That is, the first connecting member 71 is used for connecting the first sleeve portion 12 and the valve body main body portion 11
  • the second connecting member 72 is used for connecting the second sleeve portion 13 and the valve body main body portion 11 .
  • the first connecting member 71 and the second connecting member 72 are generally plate-shaped, the first connecting member 71 includes a first connecting portion 711 and a second connecting portion 722, and the first connecting portion 711 is connected to the valve body.
  • One end of the main body part is fixedly connected, and the second connecting part 712 is fixedly connected to one end of the first sleeve part 12 , that is, a through hole is provided inside the connecting part for welding and fixing with the first sleeve part, and the outside is Then, it is fixed by welding with the main body portion 11 of the valve body, and specifically, laser welding or the like can be used.
  • the second connecting member 72 may adopt the same structure as the first connecting member 71 , and details are not described herein again.
  • the valve body includes the first connecting piece, taking a section perpendicular to the central axis of the first sleeve part as a reference, the projection of the extension part 51 on the section and the projection of the first sleeve part on the section have an overlapping part, and The projection of the extension portion 51 on the cross-section overlaps with the projection of the first connecting member 71 on the cross-section.
  • the extension part 51 of the connecting rod can abut with the first sleeve part 12 to achieve a stop, or can abut with the first connecting piece 71 to achieve a stop, or At the same time, it abuts against the first sleeve portion 12 and the first connecting member 71 to achieve stopping, as shown in FIG. 19 .
  • the extension portion 51 includes limit portions 54 formed at both ends of the extension portion 51 in the length direction, and the limit portions 54 can abut against the first sleeve portion 12 and/or the first connecting member 71 . catch.
  • the extension part 51 can be made of a separate component and fixed with the connecting rod body part 59 by welding or other means, or can be integrally formed with the connecting rod body part 59 .
  • the extension part Extending from the connecting rod body portion 59 in a direction away from the centerline S of the connecting rod, the extending portion 51 and the connecting rod body portion 59 are made of one-piece material.
  • a part of the connecting rod body portion 59 can be directly formed to extend Part 51 is sufficient.
  • the extension portion 51 is an integral structure, its length is less than or equal to the length of the valve body main body portion 111 . It should be noted that, when the length of the extension portion is equal to the length of the valve body main body portion, the valve body main body portion can be connected to the two sleeve portions after transitioning through other components having a certain length in the lateral direction.
  • the connecting rod 5 is provided with a through hole, which is engaged with the sliding block 6 to limit the position. In this way, when the connecting rod 5 is displaced in the left and right directions, the sliding block 6 can be driven to move together.
  • the sliding block 6 has a substantially inverted bowl-shaped structure. In the position shown in FIG. 15 , the inner cavity of the sliding block 6 conducts the space between the second connecting pipe 32 and the third connecting pipe 33 . When the sliding block 6 moves to the right to the pre- When the position is set, the inner cavity of the slider 6 can also conduct the space in the third connecting pipe 33 and the fourth connecting pipe 34 through.
  • the first piston 41 can slide along the inner wall of the first sleeve part 12, and the second piston 42 can slide along the inner wall of the second sleeve part 13, so that the piston assembly divides the valve cavity into the first valve cavity 411,
  • the differential pressure force can push the piston assembly, the connecting rod and the slider to displace, so that the first valve
  • the second nozzle 32 is connected to the inner space of the third nozzle 33 , or the inner space of the third nozzle 33 and the fourth nozzle 34 is connected to each other.
  • the positioning of the piston assembly, the connecting rod and the slider to the left is realized by the contact between the extension part provided by the connecting rod and the first sleeve part and/or the first connecting piece, and the extension part provided by the connecting rod is connected to the second sleeve.
  • the abutment of the part and/or the second connecting piece realizes the positioning of the piston assembly, the connecting rod and the slider to move to the right.
  • this positioning method is that it does not depend on the positioning of the piston components, but directly uses the connecting rod for positioning, which is more conducive to ensuring more accurate positioning. Because if the piston component is used for positioning, it is also necessary to consider the assembly dimension chain error of the piston, the connecting rod and the slider. In this embodiment, the positioning has nothing to do with the assembly structure of the piston, and it is only necessary to ensure that the sleeve part and the main body part of the valve body. The relative position, as well as the size of the connecting rod extension can be achieved, and the requirements for the dimensional chain are relatively low. Moreover, the processing of the extension portion of the connecting rod is convenient, which is favorable for mass production.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Thermal Sciences (AREA)
  • Multiple-Way Valves (AREA)

Abstract

一种电磁切换阀，包括阀体（1），所述阀体（1）包括第一接口部（1121）和至少两个第二接口部（1122），阀体（1）包括阀体主体部（11）以及第一套筒部（12）、第二套筒部（13），第一套筒部（12）与阀体主体部（11）固定连接，第二套筒部（13）与阀体主体部（11）固定连接，第一套筒部（12）的纵截面所包围的面积小于阀体主体部（11）的纵截面所包围的面积，第二套筒部（13）的纵截面所包围的面积小于阀体主体部（11）的纵截面所包围的面积；阀体主体部（11）包括第一板状部（111）和围绕部（112），第一板状部（111）与围绕部（112）为一体成型结构，或者第一板状部（111）与围绕部（112）固定连接为一体结构，第一接口部（1121）设置于围绕部（112），至少两个第二接口部（1122）设置于第一板状部（111）。这种电磁切换阀能够降低材料和加工成本。

Description

电磁切换阀
本申请要求于2021年02月01日提交中国专利局、申请号为202110137048.7、发明名称为“电磁切换阀”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本发明涉及制冷控制领域，特别是涉及一种电磁切换阀。
背景技术
电磁切换阀应用于制冷系统，一般用于制冷剂流路的切换，以改变制冷剂的流向。比如电磁四通阀、电磁三通阀等等。下面以电磁四通阀为例进行说明。请参考图1、图2，图1为背景技术一种典型电磁四通阀用于制冷系统的结构示意图，图2是背景技术一种电磁四通阀主阀的纵剖视图。
如图所示，常规的电磁四通阀一般可用于制冷系统如空调系统，其包括主阀10'和导阀20'；主阀10'包括阀体11'。阀体11'大体呈圆筒状，并在其周壁上开设有D接口，用于连接排气管D，在与D接口相对的一侧周壁固定连接有阀座13'，阀座13'开设有3个孔，分别用于与接管E、吸气管S以及接管C固定连接。由于阀体11'的截面为圆形，因此阀座13'设置有与主阀体内壁相配合的弧形面，即阀座13'的纵截面大至呈D形，两者采用焊接固定。
阀体11'连接有与压缩机排气口连接的排气管D(与高压区连接)，与压缩机吸气口连接的吸气管S(与低压区连接)，与室内换热器30'连接的接管E以及与室外换热器40'连接的接管C；阀体11'两端设有端盖12'，内部固设有阀座13'，还设有通过连杆14'带动的滑块15'和活塞16'，阀座13'接触并支撑滑块15'，组成一对运动副，活塞16'和阀体11'组成一对运动副。
导阀20'的小阀体固设有与主阀10'的排气管D连接的毛细管d，即导阀20'的内腔也相应与主阀的高压区连通；导阀20'的小阀座具有三个阀口，并依左向右分别固设有与主阀10'的左端盖、吸气管S、主阀10'的右端盖 连接的毛细管e、毛细管s、毛细管c；导阀20'的小阀体右端固设有套管，套管外侧设有电磁线圈50'。
在一种工作状态，当制冷系统需要制冷时，电磁线圈50'不通电，导阀20'内腔的芯铁在回复弹簧力作用下，带动滑碗位于左侧位置，使毛细管e和毛细管s相通，毛细管c和毛细管d相通，从而主阀10'的左腔为低压区，右腔为高压区，主阀10'的左右腔之间形成的压差力，将滑块15'和活塞16'推向左侧，使接管E和吸气管S相通，排气管D与接管C相通，此时，制冷系统内冷媒的流通路径为：压缩机排气口→排气管D→阀体11阀腔→接管C→室外换热器40'→节流元件60'→室内换热器30'→接管E→滑块15'内腔→吸气管S→压缩机吸气口，制冷系统处于制冷工作状态；
当制冷系统需要制热时，电磁线圈50'通电，导阀20'内腔的芯铁克服回复弹簧的作用力带动滑碗右移，使毛细管c和毛细管s相通，毛细管e和毛细管d相通，从而主阀10'的左腔为高压区，右腔为低压区，主阀10'的左右腔之间形成压力差，将滑块15'和活塞16'推向右侧，使接管C和吸气管S相通，排气管D与接管E相通，此时，制冷系统内冷媒的流通路径为：压缩机排气口→排气管D→阀体11阀腔→接管E→室内换热器30'→节流元件60'→室外换热器40'→接管C→滑块15'内腔→吸气管S→压缩机吸气口，制冷系统处于制热工作状态。
如上，通过导阀20'和电磁线圈50'等的共同作用可实现主阀10'的换向，从而切换冷媒的流动方向，实现制冷系统制热工作状态和制冷工作状态的切换。
发明内容
本发明的目的是提供一种电磁切换阀，具有相对较低的阀体制造成本。为此，本发明的至少一个实施例采用以下技术方案：
一种电磁切换阀，其特征在于，包括阀体，所述阀体包括第一接口部和至少两个第二接口部，所述阀体包括阀体主体部以及第一套筒部、第二套筒部，所述第一套筒部与所述阀体主体部固定连接，所述第二套筒部与所述阀体主体部固定连接，所述第一套筒部的纵截面所包围的面积小于所 述阀体主体部的纵截面所包围的面积，所述第二套筒部的纵截面所包围的面积小于所述阀体主体部的纵截面所包围的面积；所述阀体主体部包括第一板状部和围绕部，所述第一板状部与所述围绕部为一体成型结构，或者所述第一板状部与所述围绕部固定连接为一体结构，所述第一接口部设置于所述围绕部，所述至少两个第二接口部设置于所述第一板状部。
上述实施例采用的电磁切换阀，阀体包括阀体主体部和第一套筒部、第二套筒部，其中，阀体主体部采用采用不锈钢型材或不锈钢板材卷折制成，材料成本和加工成本相对较为低廉。
附图说明
图1为背景技术一种电磁四通阀用于制冷系统的结构示意图；
图2是背景技术一种电磁四通阀主阀的纵剖视图；
图3为本发明第一实施例所提供的电磁切换阀外观示意图；
图4为本发明第一实施例所提供的电磁切换阀主阀剖面示意图；
图5为本发明第一实施例所提供的阀体主体部结构示意图；
图6为本发明第一实施例所提供的阀体主体部和阀座、滑块结构剖视图；
图7为本发明第二实施例所提供的阀体主体部加工前结构示意图；
图8为本发明第三实施例所提供的阀体主体部和阀座、滑块结构示意图；
图9为本发明第三实施例所提供的阀体主体部和阀座、滑块结构剖视图；
图10为本发明第四实施例所提供的阀体主体部和阀座、滑块结构示意图；
图11为本发明第四实施例所提供的阀体主体部和阀座、滑块结构剖视图；
图12为本发明第五实施例所提供的阀体主体部和阀座、滑块结构示意图；
图13为本发明第五实施例所提供的阀体主体部和阀座、滑块结构剖视 图；
图14为本发明又一个实施例提供的阀体主体部和阀座、滑块结构剖视图；
图15是本发明第六实施例提供的电磁四通阀主阀的剖视图；
图16是本发明第六实施例提供的活塞连杆组件结构正视图；
图17为本发明第六实施例提供的连杆装配前的结构示意图；
图18为本发明第六实施例提供的活塞连杆组件结构立体示意图；
图19为本发明第六实施例提供的阀体剖视图。
具体实施方式
为了使本技术领域的人员更好地理解本发明的技术方案，下面结合附图和具体实施方式作进一步的详细说明。
请参考图3、图4，图3为本发明第一实施例所提供的电磁切换阀外观示意图；图4为本发明第一实施例所提供的电磁切换阀主阀剖面示意图。
本实施例的电磁切换阀为一种四通阀，用于制冷系统中冷媒流动方向的切换。如图3、图4所示，电磁切换阀包括阀体1，阀体1可以采用金属如不锈钢加工而成，在本实施例中，阀体1包括阀体主体部11和第一套筒部12、第二套筒部13。其中，阀体主体部11采用不锈钢板材制成，具体而言，可以采用截面为方形的不锈钢型材截取其中一段经加工而成，阀体主体部11包括第一板状部111和围绕部112，其中，第一板状部111为四面体的其中一个面，围绕部112为四面体的其余三个面。阀体主体部11设置有第一接口部1121，用于与第一接管31固定连接，具体而言，是在围绕部112的一个壁部开设有朝向阀体主体部外侧凸起的翻边，以方便与第一接管31进行固定。第一板状部111开设有三个第二接口部1122，分别用于与第二接管32、第三接管33、第四接管34固定连接。第一接口部1121与3个第二接口部1122相对设置。需要说明的是，本实施例为四通阀，因此第二接口部1122的数量设置为3个，而在其他的应用场合，如三通阀，就可以仅设置2个第二接口部。在阀体主体部11的内部，位于第一板状部111的内侧固定连接有阀座2，阀座2大体呈板状，且设置有与第二接口部 1122一一对应的通孔部21，阀座2与阀体主体部11可以采用焊接的方式固定连接为一体结构，也可以采用粘接的方式进行固定。
阀体主体部11的两端分别连接有呈筒状的第一套筒部12和第二套筒部13，第一套筒部12和第二套筒部13均呈一端封闭的开口筒状，第一套筒部12通过第一连接件71与阀体主体部11的一个端部固定连接，第二套筒部13通过第二连接件72与阀体主体部11的另一个端部固定连接。当然，本领域技术人员应当理解，第一连接件和第二连接件是为了更方便地将套筒部与阀体主体部进行连接，因为阀体主体部呈至少一个板状部的结构，其截面可以为矩形、正方形、梯形或者其他不规则形状，而套筒部则一般截面为圆形，这样，使用连接件可以方便地进行连接。然而在不采用连接件的情况下，也可以将套筒部的开口一端拉伸出与阀体主体部的截面轮廓相适应的形状，这样，就不需要采用连接件，而是直接将套筒部开口的一端与阀体主体的一端开口通过比如焊接的方式进行固定。
这样，阀体主体部11与第一套筒部12、第二套筒部13大致围成了一个阀腔，该阀腔内的制冷剂可以通过第一接管31、第二接管32、第三接管33、第四接管34进行流动。具体在连接时，只需保证第一套筒部12和第二套筒部13保持同轴即可，至于第一套筒部12或第二套筒部13与阀体主体部11之间并不需要作出特别的限定，只需满足，当下文所述的活塞连杆组件及滑块在装配后，能够保证滑块可以在阀体主体部或阀座上滑动的同时，活塞部件能够在第一套筒部及第二套筒部的内腔移动即可。
在阀体1的内部，设置有滑块6、活塞组件以及连杆5，其中活塞组件包括第一活塞41和第二活塞42。第一活塞41与连杆5的一端固定连接，第二活塞42与连杆5的另一端固定连接。连杆5开设有贯通孔，与滑块6相卡合限位，这样，当连杆5作左右方向的位移时，能够带动滑块6一起移动。滑块6大致倒扣的碗状结构，在图4所示的位置，滑块6的内腔将第二接管32与第三接管33内的空间导通，当滑块6向右移动至预设位置时，滑块6的内腔又能将第三接管33与第四接管34内的空间导通。第一活塞41能够沿着第一套筒部12的内壁滑动，第二活塞42能够沿着第二套筒部13的内壁滑动，这样，活塞组件就将阀腔分成了第一阀腔411、第二 阀腔412、第三阀腔413，当各阀腔之间压力不同，而产生压差力的时候，该压差力就能够推动活塞组件、连杆及滑块发生位移，从而使第二接管32与第三接管33的内部空间导通，或者使第三接管33与第四接管34的内部空间导通。为了确定活塞组件、连杆及滑块向左及向右移动的行程，需要设置限位结构，使得活塞组件、连杆及滑块左移的定位及右移的定位，在本实施方式中，可以通过在第一套筒部12的外周壁设置一个第一限位部121，具体而言，可以通过滚压的方式，使第一套筒部12的靠近自身底壁的一侧的外周壁向内部凸起，当第一活塞41向左移动时，能够与第一限位部121相抵接，以实现定位。同样，也可以通过滚压的方式，在第二套筒部13的靠近自身底壁的一侧的外周壁向内部凸起，形成第二限位部131，当第二活塞42向右移动时，能够与第二限位部131相抵接，以实现定位。
当然，在此实施例的基础上，也可以将第一套筒部12及第二套筒部13分别设置为不等径的结构，其开口侧，即与活塞碗配合的部分的内径大于套筒部封口侧的内径，这样，在两段不同内径之间就形成了限位部，由于活塞碗的外径与套筒部的大径部分的内径相适应，因此套筒部封口侧的较小内径的部分，活塞碗无法通过，从而实现定位的目的。
请参照图5、图6，其中，图5为本发明第一实施例所提供的阀体主体部结构示意图；图6为本发明第一实施例所提供的阀体主体部和阀座、滑块结构剖意图。
在本实施例中，阀体主体部11由不锈钢材料一体成型，具体而言，可以采用预制的横截面为方形的不锈钢管材截取其中一段，阀体主体部11包括第一板状部111以及围绕部112，在本实施例中，除第一板状部111外的其余三面即围绕部112。在第一板状部111上加工出三个第二接口部1122，在与围绕部112上的与第一板状部111相对的位置加工出第一接口部1121。在本实施例中，围绕部112还包括第二板状部1123，第二板状部1123与第一板状部111相对设置，第一接口部1121位于第二板状部1123。第二板状部1123既可以是平板状结构也可以是呈曲面的板状结构。阀座2呈板状结构，并具有通孔部21，通孔部21的数量和位置均与第二接口部1122相对应。阀座2与第一板状部111的内侧固定连接，具体可以采用激 光焊的方式，也可以采用胶水粘接的方式进行固定。
作为进一步的实施方式，还可以将第二板状部1123的至少部分朝向第一接口部1121的方向凸起，并且第一接口部1121设置于第二板状部1123的凸起的部分。既可以使第二板状部1123的部分向上凸起，如图14所示，图14为本发明又一个实施例提供的阀体主体部和阀座、滑块结构剖视图。第二板状部1123向上凸起形成顶部凸起部11231，而第一接口部1121设置于顶部凸起部11231。当然也可以使第二板状部1123整体呈向上凸起的曲面状。这种设置方式的好处是，能够使第一接口部1121与第一板状部111之间的距离相对更远，或者说，当滑块、连杆部件装配完成后，第一接口部1121距离滑块的顶壁部具有相对更远的距离，高压冷媒从第一接管31流入时，就具有相对更大的空间，有利于优化高压侧的流量。需要说明的是，第二板状部1123的凸起结构也适用于下文所述的第二、第三、第四、第五实施例，不再一一赘述。
本实施倒提供的阀体结构，采用截面为方形的阀体主体部以及两个套筒部通过直接或间接的方式连接为阀体结构，特别是阀体主体部直接采用不锈钢型材制成，成本相对较为低廉。并且，第一板状部本身大致呈板状，而阀座也呈板状，就可以方便地进行焊接固定，不再如背景技术所述的加工出纵截面为D形的阀座，与弧状的主阀体内壁弧形面配合，相对而言可以节约大量的材料成本和加工成本。
请参照图7，图7为本发明第二实施例所提供的阀体主体部加工前结构示意图。本实施例与第一实施例的不同之处在于，阀体主体部11不是采用预制的横截面为方形的不锈钢管材，而是采用不锈钢板材卷折成形。具体而言，先预制不锈钢板材110，然后先在板材上冲出4个孔，再对4个孔进行翻边，分别形成第一接口部1121和3个第二接口部1122，然后对不锈钢板材110进行弯折围成方形，并在接缝处实施焊接的方式进行固定。本领域技术人员能够理解，在本实施例中，也可以如第一实施例那样，在围绕部112设置第二板状部1123，第二板状部1123与第一板状部111相对设置，第一接口部1121位于第二板状部1123。
本实施倒提供的阀体结构，采用不锈钢板材卷折的方式加工，在实际 加工过程中，可以先在板材上冲孔并进行翻边，再卷折成方形，加工成本相对较为低廉。并且，第一板状部本身大致呈板状，而阀座也呈板状，就可以方便地进行焊接固定，不再如背景技术所述的加工出纵截面为D形的阀座，与弧状的主阀体内壁弧形面配合，相对而言可以节约大量的材料成本和加工成本。
请参照图8、图9，图8为本发明第三实施例所提供的阀体主体部和阀座、滑块结构示意图；图9为本发明第三实施例所提供的阀体主体部和阀座、滑块结构剖视图。本实施例与第一实施例不同之处在于，阀体主体部11采用相对更厚的材料制成，且直接将第一板状部111的内侧面作为与滑块6相配合的配合面，即不再设置一个独立的阀座部件，而是由第一板状部111同时承担阀座的功能，滑块6直接在第一板状部111的内侧面滑动。
本实施倒提供的阀体结构，采用截面为方形的阀体主体部以及两个套筒部通过直接或间接的方式连接为阀体结构，特别是阀体主体部直接采用不锈钢型材制成，且厚度相对第一实施例更大，使得阀体具有更高的耐压性能。并且，由于厚度相对较厚，可以不再设置单独的阀座结构，而是直接将阀体主体部的第一板状部承担阀座的功能，即通过表面加工处理后，直接使滑块在第一板状部的内侧表面上滑动以实现切换功能。这种结构的结构相对更为简单，方便批量制造。并且，第一板状部本身大致呈板状，而阀座也呈板状，就可以方便地进行焊接固定，不再如背景技术所述的加工出纵截面为D形的阀座，与弧状的主阀体内壁弧形面配合，相对而言可以节约大量的材料成本和加工成本。
请参照图10、图11，图10为本发明第四实施例所提供的阀体主体部和阀座、滑块结构示意图；图11为本发明第四实施例所提供的阀体主体部和阀座、滑块结构剖视图。本实施例与第一实施例不同之处在于，阀体主体部11采用分体式结构，即第一板状部111和围绕部112为分体加工的零件，这样，第一板状部111就可以采用相对更厚的不锈钢板材制造，并加工出三个第二接口部1122，用于与四通阀的第二接管32、第三接管33、第四接管34固定连接，第一板状部111的内侧面则用于与滑块6进行配合。
本实施倒提供的阀体结构，第一板状部采用单独的部件加工成型，可 以选择合适的厚度，并进行表面加工，适合批量化生产，并且相对容易保证其表面适合滑块的滑动配合。而围绕部则采用板状部件弯折或卷曲成型，并且对围绕部的表面处理不需要非常严格，因此有利于批量化的生产和加工，可以节约制造成本。同样，本实施例也不必如背景技术所述的加工出纵截面为D形的阀座，与弧状的主阀体内壁弧形面配合，相对而言可以节约大量的材料成本和加工成本。
请参照图12、图13，图12为本发明第五实施例所提供的阀体主体部和阀座、滑块结构示意图；图13为本发明第五实施例所提供的阀体主体部和阀座、滑块结构剖视图。阀体主体部11采用不锈钢型材一体成型，包括第一板状部111和围绕部112，其中，第一板状部111设置有贯穿的空缺部1112，阀座2嵌装于空缺部1112，并与第一板状部111通过焊接的方式固定连接。为进一步提升可靠性，可以将阀座2的材料厚度设置为大于第一板状部111的材料厚度，并且，阀座2在与第一板状部111装之后，既相对于第一板状部111的内侧面凸起，也相对于第一板状部111的外侧面凸起。
本实施倒提供的阀体结构，采用截面为方形的阀体主体部以及两个套筒部通过直接或间接的方式连接为阀体结构，特别是阀体主体部直接采用不锈钢型材制成，成本相对较为低廉。然后在第一板状部中开孔，将阀座嵌入装配固定，阀座本身可以选择适宜的厚度进行加工，而阀体主体部则采用型材制成，具有较高的耐压强度。
下面结合图15-图19说明本发明关于连杆结构的其他实施例。需要说明的是，以下实施例所描述的连杆结构，可以适用于以述第一至第五实施例所提供的阀体结构当中，但不局于上述实施例的阀体结构，本领域技术人员应当理解，在上述实施例的基础上所作的衍生实施例也适合于以下的实施例。
请参照图15-19，其中，图15是本发明第六实施例提供的电磁四通阀主阀的剖视图；图16是本发明第六实施例提供的活塞连杆组件结构正视图；图17为本发明第六实施例提供的连杆装配前的结构示意图；图18为本发明第六实施例提供的活塞连杆组件结构立体示意图；图19为本发明第 六实施例提供的阀体剖视图。
本实施例的电磁切换阀为一种四通阀，用于制冷系统中冷媒流动方向的切换。如图15所示，电磁切换阀包括阀体1，阀体1可以采用金属如不锈钢加工而成，在本实施例中，阀体1包括阀体主体部11和第一套筒部12、第二套筒部13。其中，阀体主体部11采用不锈钢板材制成，具体而言，可以采用截面为方形的不锈钢型材截取其中一段经加工而成，或者采用不锈钢板经弯折后固定连接而成。阀体主体部11包括第一板状部111和围绕部112，其中，第一板状部111为四面体的其中一个面，围绕部112为四面体的其余三个面。当然围绕部112不限定为三个面围成，也可以整体呈曲面形状，也可以如第一实施例所记载的包括第二板状部。阀体主体部11设置有第一接口部1121，用于与第一接管31固定连接，具体而言，是在围绕部112的一个壁部开设有朝向阀体主体部外侧凸起的翻边，以方便与第一接管31进行固定。第一板状部111开设有三个第二接口部1122，分别用于与第二接管32、第三接管33、第四接管34固定连接。第一接口部1121与3个第二接口部1122相对设置。需要说明的是，本实施例为四通阀，因此第二接口部1122的数量设置为3个，而在其他的应用场合，如三通阀，就可以仅设置2个第二接口部。在阀体主体部11的内部，位于第一板状部111的内侧固定连接有阀座2，阀座2大体呈板状，且设置有与第二接口部1122一一对应的通孔部21，阀座2与阀体主体部11可以采用焊接的方式固定连接为一体结构，也可以采用粘接的方式进行固定。阀体主体部11的两端分别连接有呈筒状的第一套筒部12和第二套筒部13，第一套筒部12和第二套筒部13均呈一端封闭的开口筒状，第一套筒部12通过第一连接件71与阀体主体部11的一个端部固定连接，第二套筒部13通过第二连接件72与阀体主体部11的另一个端部固定连接。
在阀体1的内部，设置有滑块6、活塞组件以及连杆5，其中活塞组件包括第一活塞41和第二活塞42。第一活塞41和第二活塞42分别固定连接于连杆5的两端。具体而言，连杆5大体呈板状结构，包括连杆本体部59。连杆本体部59设置有贯穿的通孔部56，通孔部56用于与滑块6卡装配合，即，将连杆5通过通孔部56扣合在滑块6上，使滑块6与连杆5 能够同步运动。连杆5包括第一端部52和第二端部53，其中，第一端部52形成朝向不同方向折弯的第一端部连接一部521和第一端部连接二部522。具体可以将第一端部连接一部521和第一端连接二部522沿垂直于连杆本体部59的板面的方向，并朝向相反的方向进行折弯，使得第一端部连接一部521朝向垂直于连杆本体部59的一个方向延伸，第一端部连接二部522朝向垂直于连杆本体部59的另一个方向延伸。第一端部连接一部521和第一端部连接二部522均设置有连接孔，与之相适应地，第一活塞41也在相应的位置设置有连接孔，这样，可以通过铆钉连接的方式，将第一活塞41与第一产中521固定连接。如图18所示，第一活塞41本身由活塞碗、活塞垫片、压环等零部件组成，采用一对第一铆压件573进行铆压固定。而第一活塞41与连杆之间则通过一对第二铆压件571进行铆压固定。在连杆的另一侧，第二活塞42本身采用第三铆压件583进行铆压固定，而第二活塞42与连杆之间则通过一对第四铆压件581/582进行铆压固定。这种设置方式的好处是使连杆与下文所述的活塞固定连接时具有较好的强度，并且受力相对比较均匀。本领域技术人员能够理解，连杆的第二端部53同样设置有第二端部连接一部531和第二端部连接二部532，其结构及连接方式可以与第一端部52的连接方式相同，在此不再赘述。这样，第一活塞41就与连杆的一个端部固定连接，第二活塞42与连杆的另一个端部固定连接。
当装配完毕后，第一活塞41与第一套筒部12的内壁滑动配合，第二活塞42与第二套筒部13的内壁滑动配合。活塞与套筒之间组成运动副，从而将套筒的内部空间进行隔离。
在连杆本体部59的两侧，设置有一至少一个延伸部51，在本实施方式中，延伸部51是从连杆本体部59的一个侧部向外延伸，此处所指的“向外”是指以连杆本体部为基准，相对连杆本体部59而言朝向外部延伸，由于连杆本体部大体呈对称结构，具有中心线S，延伸部51到中心线S的最大距离为L。由于连杆与第一套筒部及第二套筒部均同轴设置，那么L大于任一套筒部的半径D/2，其中D为套筒部的直径，如图15所示。
由于L＞D/2，那么在装配完毕后的电磁切换阀，当连杆向左移动时， 连杆的延伸部51就无法进入第一套筒部12的内腔，从而实现对连杆行程的定位。显然，当连杆向右移动时，连杆的延伸部51也无法进入第二套筒部12的内腔，从而也同样实现定位。换言之，以垂直于第一套筒部12的中心轴线的截面为基准，延伸部51在该截面的投影与第一套筒部12在该截面的投影有重叠部分。具体而言，延伸部51包括限位部54，限位部54形成于延伸部51的长度方向的两端，限位部54用于与第一套筒部12的开口一侧的端部相抵接。
需要说明的是，本实施例中，是在连杆本体部59的一个侧面延伸出一个延伸部51，当然，也可以在同一侧面延伸出两个延伸部，分别用于与第一套筒部12一侧的定位，以及与第二套筒部13一侧的定位。另外，理论上只需在连杆本体部59的一个侧面设置延伸部即可，为了便于加工制造，并且增加连杆的强度，可以在连杆本体部59的两侧均设置延伸部，如本实施例对应的图16所示。
如上文所述，本实施例中，第一套筒部12通过第一连接件71与阀体主体部11的一个端部固定连接，第二套筒部13通过第二连接件72与阀体主体部11的另一个端部固定连接。即，第一连接件71用于连接第一套筒部12和阀体主体部11，第二连接件72用于连接第二套筒部13和阀体主体部11。作为一种具体的实施例，第一连接件71和第二连接件72大体呈板状，第一连接件71包括第一连接部711和第二连接部722，第一连接部711与阀体主体部的一个端部固定连接，第二连接部712与第一套筒部12的一个端部固定连接，即连接部的内部设置有通孔部，用于与第套筒部焊接固定，外部则与阀体主体部11焊接固定，具体可以采用激光焊等方式。同理，第二连接件72可以采用与第一连接件71相同的结构，在此不再赘述。
当阀体包括第一连接件时，以垂直于第一套筒部的中心轴线的截面为基准，延伸部51在该截面的投影与第一套筒部在该截面的投影有重叠部分，并且延伸部51在该截面的投影与第一连接件71在该截面的投影有重叠部分。这样，连杆在向左移动到特定位置时，连杆的延伸部51可以与第一套筒部12抵接实现止动，也可以与第一连接件71抵接以实现止动，还 可以同时与第一套筒部12及第一连接件71相抵接以实现止动，如图19所示。具体而言，延伸部51包括限位部54，限位部54形成于延伸部51的长度方向的两端，限位部54能够与第一套筒部12和/或第一连接件71相抵接。
延伸部51既可以采用单独的零部件制成，并与连杆本体部59通过焊接等方式进行固定，也可以与连杆本体部59一体成型，具体而言，在本实施方式中，延伸部自连杆本体部59朝向远离连杆的中心线S的方向延伸，延伸部51与连杆本体部59为一体材料制成，在加工时，可以将连杆本体部59的一部分直接成形为延伸部51即可。当延伸部51为一体结构时，其长度小于或等于阀体主体部111的长度。需要说明的是，当延伸部的长度等于阀体主体部的长度时，阀体主体部可以通过其他在横向具有一定长度的部件进行过渡后与两个套筒部连接。
连杆5开设有贯通孔，与滑块6相卡合限位，这样，当连杆5作左右方向的位移时，能够带动滑块6一起移动。滑块6大致倒扣的碗状结构，在图15所示的位置，滑块6的内腔将第二接管32与第三接管33内的空间导通，当滑块6向右移动至预设位置时，滑块6的内腔又能将第三接管33与第四接管34内的空间导通。第一活塞41能够沿着第一套筒部12的内壁滑动，第二活塞42能够沿着第二套筒部13的内壁滑动，这样，活塞组件就将阀腔分成了第一阀腔411、第二阀腔412、第三阀腔413，当各阀腔之间压力不同，而产生压差力的时候，该压差力就能够推动活塞组件、连杆及滑块发生位移，从而使第二接管32与第三接管33的内部空间导通，或者使第三接管33与第四接管34的内部空间导通。通过连杆设置的延伸部与第一套筒部和/或第一连接件的抵接，实现活塞组件、连杆及滑块左移的定位，通过连杆设置的延伸部与第二套筒部和/或第二连接件的抵接，实现活塞组件、连杆及滑块右移的定位。
这种定位方式的优点在于，不依赖于活塞部件的定位，而是直接利用连杆进行定位，更有利于保证定位较为精准。因为利用活塞部件进行定位的话，还需要考虑活塞、连杆、滑块的装配尺寸链误差，而本实施例中，定位与活塞的装配结构无关，只需保证套筒部与阀体主体部的相对位置， 以及连杆延伸部的尺寸即可实现，对尺寸链的要求相对较低。并且连杆的延伸部加工较为方便，有利于批量化的制造。
这里，方位词上、下、左和右是以说明书附图所示示图为基准定义的，只是为了理解和表述方便，不应限定本申请的保护范围。
以上对本发明所提供的电磁切换阀进行了详细介绍。本文中应用了具体个例对本发明的原理及实施方式进行了阐述，以上实施例的说明只是用于帮助理解本发明的方法及其核心思想。应当指出，对于本技术领域的普通技术人员来说，在不脱离本发明原理的前提下，还可以对本发明进行若干改进和修饰，这些改进和修饰也落入本发明权利要求的保护范围内。

Claims (10)

  1. 一种电磁切换阀，其特征在于，包括阀体(1)，所述阀体(1)包括第一接口部(1121)和至少两个第二接口部(1122)，所述阀体(1)包括阀体主体部(11)以及第一套筒部(12)、第二套筒部(13)，所述第一套筒部(12)与所述阀体主体部(11)固定连接，所述第二套筒部(13)与所述阀体主体部(11)固定连接，所述第一套筒部(12)的纵截面所包围的面积小于所述阀体主体部(11)的纵截面所包围的面积，所述第二套筒部(13)的纵截面所包围的面积小于所述阀体主体部(11)的纵截面所包围的面积；所述阀体主体部(11)包括第一板状部(111)和围绕部(112)，所述第一板状部(111)与所述围绕部(112)为一体成型结构，或者所述第一板状部(111)与所述围绕部(112)固定连接为一体结构，所述第一接口部(1121)设置于所述围绕部(112)，所述至少两个第二接口部(1122)设置于所述第一板状部(111)。
  2. 如权利要求1所述的电磁切换阀，其特征在于，所述阀体主体部(11)为一体成型材料制成，所述围绕部(112)包括第二板状部(1123)，所述第一接口部(1121)位于所述第二板状部(1123)。
  3. 如权利要求1所述的电磁切换阀，其特征在于，所述阀体主体部(11)为板材卷折后焊接为一体结构，所述围绕部(112)包括第二板状部(1123)，所述第一接口部(1121)位于所述第二板状部(1123)。
  4. 如权利要求2-3任一项所述的电磁切换阀，其特征在于，所述第二板状部(1123)的至少部分朝向所述第一接口部(1121)的方向凸起，并且所述第一接口部(1121)设置于所述第二板状部(1123)的凸起的部分。
  5. 一种电磁切换阀，其特征在于，包括阀体(1)、阀座(2)，所述阀体(1)包括第一接口部(1121)和至少两个第二接口部(1122)，所述阀体(1)包括阀体主体部(11)以及第一套筒部(12)、第二套筒部(13)，所述第一套筒部(12)与所述阀体主体部(11)固定连接，所述第二套筒部(13)与所述阀体主体部(11)固定连接，所述阀体主体部(11)包括第一板状部(111)和围绕部(112)，所述第一板状部(111)与所述围绕部(112)为一体材料成型，或者所述第一板状部(111)与所述围绕部(112) 固定连接为一体结构，所述第一接口部(1121)设置于所述围绕部(112)，所述至少两个第二接口部(1122)设置于所述第一板状部(111)，所述第一接口部(1121)与所述至少两个第二接口部(1122)相对设置；所述阀座(2)与所述板状部固定连接。
  6. 如权利要求5所述的电磁切换阀，其特征在于，所述阀体主体部(11)为一体成型材料制成，所述阀座(2)位于所述阀体主体部(11)的内侧，所述阀座(2)与所述阀体主体部(11)通过焊接或粘接的方式固定连接。
  7. 如权利要求5所述的电磁切换阀，其特征在于，所述第一板状部(111)和所述围绕部(112)通过焊接的方式固定连接，所述第一板状部(111)的材料厚度大于所述围绕部(112)的材料厚度。
  8. 如权利要求5所述的电磁切换阀，其特征在于，所述第一板状部(111)和所述围绕部(112)为一体成型材料制成，所述第一板状部(111)设置有贯穿的空缺部(1112)，所述阀座(2)嵌装于所述空缺部(1112)，并且，所述阀座(2)与所述第一板状部(111)焊接固定。
  9. 如权利要求8所述的电磁切换阀，其特征在于，所述阀座(2)的材料厚度大于所述第一板状部(111)的材料厚度，并且，所述阀座(1)相对于所述第一板状部(111)的内侧面凸起，同时，所述阀座(1)相对于所述第一板状部(111)的外侧面凸起。
  10. 如权利要求6-9任一项所述的电磁切换阀，其特征在于，所述第二板状部(1123)的至少部分朝向所述第一接口部(1121)的方向凸起，并且所述第一接口部(1121)设置于所述第二板状部(1123)的凸起的部分。
PCT/CN2022/074577 2021-02-01 2022-01-28 电磁切换阀 WO2022161457A1 (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202110137048.7A CN114838182B (zh) 2021-02-01 2021-02-01 电磁切换阀
CN202110137048.7 2021-02-01

Publications (1)

Publication Number Publication Date
WO2022161457A1 true WO2022161457A1 (zh) 2022-08-04

Family

ID=82560914

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2022/074577 WO2022161457A1 (zh) 2021-02-01 2022-01-28 电磁切换阀

Country Status (2)

Country Link
CN (1) CN114838182B (zh)
WO (1) WO2022161457A1 (zh)

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3894561A (en) * 1974-03-14 1975-07-15 Controls Co Of America Four-way reversing valve with differential area operator
JPS62122966U (zh) * 1986-01-29 1987-08-04
CN102269281A (zh) * 2011-06-28 2011-12-07 浙江盾安禾田金属有限公司 一种热泵空调用四通换向阀
CN102434697A (zh) * 2011-12-09 2012-05-02 浙江盾安禾田金属有限公司 电磁四通换向阀主阀阀体及采用该阀体的电磁四通换向阀
CN103968128A (zh) * 2014-05-23 2014-08-06 张红霞 改进的制冷或制热系统用换向阀
CN106763894A (zh) * 2015-11-24 2017-05-31 株式会社鹭宫制作所 切换阀以及冷冻循环
CN108626457A (zh) * 2017-03-20 2018-10-09 浙江三花制冷集团有限公司 一种换向阀及其制备方法
CN109990129A (zh) * 2017-12-29 2019-07-09 浙江三花智能控制股份有限公司 电磁切换阀

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06281024A (ja) * 1993-03-24 1994-10-07 Taiheiyo Kogyo Kk 四方切換弁
JPH0720475U (ja) * 1993-09-14 1995-04-11 株式会社イズミ技研 四方弁
JP3997036B2 (ja) * 1998-07-02 2007-10-24 株式会社鷺宮製作所 流路切換弁
JP6607721B2 (ja) * 2015-05-22 2019-11-20 株式会社不二工機 直動式電磁弁及びそれをパイロット弁として備えた五方切換弁
CN211599617U (zh) * 2019-12-25 2020-09-29 盾安环境技术有限公司 主阀及具有其的换向阀

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3894561A (en) * 1974-03-14 1975-07-15 Controls Co Of America Four-way reversing valve with differential area operator
JPS62122966U (zh) * 1986-01-29 1987-08-04
CN102269281A (zh) * 2011-06-28 2011-12-07 浙江盾安禾田金属有限公司 一种热泵空调用四通换向阀
CN102434697A (zh) * 2011-12-09 2012-05-02 浙江盾安禾田金属有限公司 电磁四通换向阀主阀阀体及采用该阀体的电磁四通换向阀
CN103968128A (zh) * 2014-05-23 2014-08-06 张红霞 改进的制冷或制热系统用换向阀
CN106763894A (zh) * 2015-11-24 2017-05-31 株式会社鹭宫制作所 切换阀以及冷冻循环
CN108626457A (zh) * 2017-03-20 2018-10-09 浙江三花制冷集团有限公司 一种换向阀及其制备方法
CN109990129A (zh) * 2017-12-29 2019-07-09 浙江三花智能控制股份有限公司 电磁切换阀

Also Published As

Publication number Publication date
CN114838182A (zh) 2022-08-02
CN114838182B (zh) 2023-06-02

Similar Documents

Publication Publication Date Title
CN106545670B (zh) 直动式电磁阀以及将其作为导向阀而具备的四通切换阀
WO2016180111A1 (zh) 换向阀以及具有其的制冷系统
EP2278200A1 (en) End cover and four-way reversing valve using the same and assembling method thereof
JP2010038320A (ja) 四方切換弁用弁体
JP4818668B2 (ja) 流路切換弁
JP2000046213A (ja) 流路切替弁
WO2022161457A1 (zh) 电磁切换阀
CN2706644Y (zh) 四通电磁换向阀
CN106286892A (zh) 三通电磁阀
CN107355563B (zh) 换向阀及具有其的制冷系统
WO2022161456A1 (zh) 一种电磁换向阀
WO2019129190A1 (zh) 电磁切换阀
CN114838181A (zh) 电磁切换阀
US11383578B2 (en) Two-position eight-way valve and electric vehicle air conditioning system
CN106286895A (zh) 三通电磁阀
CN106286894A (zh) 三通电磁阀
JP4958966B2 (ja) 切換弁
CN109990113B (zh) 电磁切换阀及活塞
CN106286893A (zh) 三通电磁阀
CN116412267A (zh) 电磁切换阀
CN109990115B (zh) 电磁切换阀
CN116412266A (zh) 电磁切换阀
CN216407808U (zh) 一种电磁换向阀
CN116412268A (zh) 电磁切换阀及其制造方法
CN219102155U (zh) 四通阀

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 22745329

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 22745329

Country of ref document: EP

Kind code of ref document: A1