WO2023195512A1 - Soupape de commutation de type coulissant et système à cycle de réfrigération - Google Patents

Soupape de commutation de type coulissant et système à cycle de réfrigération Download PDF

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Publication number
WO2023195512A1
WO2023195512A1 PCT/JP2023/014190 JP2023014190W WO2023195512A1 WO 2023195512 A1 WO2023195512 A1 WO 2023195512A1 JP 2023014190 W JP2023014190 W JP 2023014190W WO 2023195512 A1 WO2023195512 A1 WO 2023195512A1
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WO
WIPO (PCT)
Prior art keywords
valve
plunger
type switching
valve seat
switching valve
Prior art date
Application number
PCT/JP2023/014190
Other languages
English (en)
Japanese (ja)
Inventor
正吾 濱田
雅弘 村田
陵 三留
秀剛 渡邉
聡 岡田
大一郎 剱持
Original Assignee
株式会社鷺宮製作所
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.)
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Publication date
Application filed by 株式会社鷺宮製作所 filed Critical 株式会社鷺宮製作所
Priority to CN202380015429.5A priority Critical patent/CN118451270A/zh
Publication of WO2023195512A1 publication Critical patent/WO2023195512A1/fr

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
    • F16K11/02—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit
    • F16K11/06—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements
    • F16K11/065—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with linearly sliding closure members
    • 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
    • F16K3/02—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 flat sealing faces; Packings 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
    • 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
    • F25B41/26—Disposition of valves, e.g. of on-off valves or flow control valves of fluid flow reversing valves

Definitions

  • the present invention relates to a slide type switching valve and a refrigeration cycle system.
  • a switching valve that opens and closes a valve port formed on a valve seat surface to switch a fluid flow path by moving a valve body using an electromagnetic drive unit having a solenoid coil.
  • an electromagnetic drive unit having a solenoid coil.
  • one configured as a pilot valve for driving a four-way switching valve in a refrigeration cycle system has been proposed (see, for example, Patent Document 1).
  • Patent Document 1 when the electromagnetic coil is energized in the electromagnetic drive unit, the plunger moves toward the attractor, and when the energization is cut off, the plunger moves toward the attractor due to the biasing force of the coil spring.
  • the flow path can be switched by switching between energization and de-energization.
  • valve body In order for the valve body to normally open and close the port in the state where the electricity is cut off as described above, when the plunger moves away from the suction element, it is necessary to restrict this movement at a certain position. In a configuration in which the movement of the plunger is restricted by coming into contact with the valve seat member (the member in which the valve port is formed), it is easy to maintain accurate relative positions between the valve body and the valve port, but the valve If the seat member becomes deformed or worn, or if a load is applied to the joint between the valve seat member and the valve body (plunger tube), malfunction may occur, so a stronger joint is required. There was a need.
  • An object of the present invention is to provide a slide type switching valve and a refrigeration cycle system that can suppress malfunctions.
  • the slide type switching valve of the present invention has a valve main body forming a valve chamber, a valve seat surface in which at least one valve port is formed, and a valve seat portion provided in the valve chamber, and
  • a slide type switching valve comprising: a valve body that opens and closes the valve port with respect to the valve chamber by sliding; and an electromagnetic drive unit that moves the valve body in a sliding direction along the valve seat surface.
  • the electromagnetic drive section includes a plunger extending along the sliding direction and to which the valve body is connected, an attractor disposed on one side of the plunger in the sliding direction, and exciting the attractor.
  • valve body integrally includes a valve chamber forming part that forms the valve chamber, and a plunger accommodating part that accommodates and guides the plunger in the sliding direction and is provided with the attractor, and the plunger is driven by the electromagnetic drive.
  • the movement of the plunger is regulated by coming into contact with the closing part of the valve chamber forming part, so that it is possible to have a configuration in which the plunger does not collide with the valve seat part, and the valve seat part and its surroundings are prevented from colliding with the valve seat part. It is possible to suppress damage caused to Furthermore, the closing portion is a necessary portion for forming the valve chamber, and there is no need to additionally provide a stopper.
  • the valve port Errors in relative position with the valve body can be reduced. Thereby, the valve port can be easily opened and closed normally by the valve body, and malfunctions can be suppressed.
  • valve chamber forming part that forms the valve chamber in the valve body and the plunger accommodating part that accommodates the plunger are integrated, errors in relative position that may occur if these are separate parts are suppressed. be able to. That is, it is possible to suppress errors in the relative positions of the plunger and the attractor, and to facilitate normal driving of the plunger by magnetic force.
  • defects in the slide type switching valve can be suppressed by suppressing damage to the valve seat portion and its surroundings while suppressing an increase in the number of parts and additional configurations.
  • the valve chamber forming part has a mounting opening formed on a side surface of a cylindrical part, and the valve seat part is formed separately from the valve main body, a small diameter portion having an outer diameter smaller than the inner diameter of the mounting opening; and a large diameter portion having an outer diameter larger than the inner diameter of the mounting opening and provided on the opposite side of the valve seat surface with respect to the small diameter portion. It is preferable that the small diameter portion is inserted into the attachment opening and that insertion is regulated by the large diameter portion.
  • the valve chamber forming part has a mounting opening formed in a side surface of the cylindrical part, and the valve seat part is formed separately from the valve main body. It is attached to the valve body by being inserted into the mounting opening, and one of the other end and the one end of the valve seat portion is attached to the inner circumferential surface of the mounting opening. It is preferable that a gap is formed between the two and the inner circumferential surface, and a fixing member is provided in the gap.
  • the valve seat can be fixed with reference to either end in the sliding direction of the inner circumferential surface of the mounting opening, and the relative relationship between the valve body and the valve seat in the sliding direction can be fixed. Positional errors can be suppressed.
  • the plunger comes into contact with a portion of the valve body, and errors in the relative positions of the valve body and the plunger in the sliding direction are suppressed. Therefore, in the sliding direction, errors in the relative position between the plunger and the valve seat can be suppressed, errors in the relative position between the valve body and the valve port can be suppressed, and defects in the slide type switching valve can be suppressed. can.
  • the plunger has a flat end face on the other side, and contacts the closing portion in a planar manner at the end face. According to such a configuration, by increasing the contact area, it is possible to disperse the load at the time of a collision, suppress deformation and damage caused by the collision, and suppress malfunctions of the slide type switching valve.
  • the plunger has a concave holding portion that opens toward the valve seat surface, and that the valve body is disposed and held within the holding portion. .
  • the valve body can be directly held by the plunger, and no special parts for holding it are required. Thereby, it is possible to suppress dimensional errors and relative position errors that may occur due to dedicated parts, and to suppress malfunctions of the slide type switching valve.
  • the slide type switching valve of the present invention includes a pipe portion connected to the valve chamber forming portion, and the valve chamber forming portion protrudes toward the outside of the valve chamber at a position facing the valve port.
  • a cylindrical protruding connection part inserted into the inside of the tube part.
  • the slide type switching valve of the present invention at least three of the valve ports are formed on the valve seat surface, and two of the at least three valve ports are used in a four-way switching valve provided in a refrigeration cycle system. It communicates with each of the spaces sandwiching the piston that moves the slide valve, and when the electromagnetic drive unit moves the plunger, high-pressure fluid is introduced into one of the spaces sandwiching the piston, and the slide valve is moved by a pressure difference. The valve may be moved. According to such a configuration, the four-way switching valve can be operated normally by suppressing the malfunction as described above.
  • the refrigeration cycle system of the present invention includes a compressor that compresses a refrigerant as a fluid, a first heat exchanger that functions as a condenser in a cooling mode, a second heat exchanger that functions as an evaporator in a cooling mode, and It is characterized by comprising an expansion means for expanding and reducing the pressure of the refrigerant between the first heat exchanger and the second heat exchanger, the above-mentioned slide type switching valve, and the above-mentioned four-way switching valve. . According to the refrigeration cycle system of the present invention, as described above, it is possible to suppress the malfunction of the slide type switching valve and to suppress the malfunction of the entire cycle.
  • the slide type switching valve of the present invention has a valve main body forming a valve chamber, a valve seat surface in which at least one valve port is formed, and a valve seat portion provided in the valve chamber, and
  • a slide type switching valve comprising: a valve body that opens and closes the valve port with respect to the valve chamber by sliding; and an electromagnetic drive unit that moves the valve body in a sliding direction along the valve seat surface.
  • the valve body has a cylindrical part that extends along the sliding direction and is provided with the valve seat, and the cylindrical part is located outside the valve chamber at a position facing the valve port. It has a protruding connection part that protrudes in a cylindrical shape and is connected to the pipe part by being inserted into the inside of the pipe part.
  • the contact area between the valve body and the pipe portion can be secured by the protruding connection portion, and the fixing strength can be improved when joining, for example, by brazing. At this time, there is no need to use a separate part to ensure the contact area, and an increase in the number of parts can be suppressed.
  • FIG. 1 is a schematic configuration diagram of a refrigeration cycle provided with a slide type switching valve according to an embodiment that is an example of the present invention. It is a sectional view showing the slide type switching valve. It is a bottom view showing the valve seat part of the slide type switching valve.
  • FIG. 3 is an enlarged cross-sectional view showing a main part of the slide type switching valve.
  • the slide type switching valve 1 of this embodiment is provided, for example, in a refrigeration cycle 100.
  • the refrigeration cycle 100 is used in an air conditioner such as a room air conditioner, a package air conditioner, or a multi-purpose air conditioner.
  • An outdoor heat exchanger 103 as an exchanger
  • an indoor heat exchanger 104 as a second heat exchanger that functions as an evaporator in the cooling mode
  • a refrigerant between the outdoor heat exchanger 103 and the indoor heat exchanger 104.
  • expansion valve 105 as an expansion means for expanding and reducing the pressure of the refrigerant, a four-way switching valve 10, and a slide type switching valve 1 that is a pilot solenoid valve that switches and controls the flow path of the four-way switching valve 10. connected by piping.
  • the expansion means is not limited to the expansion valve 105, but may be a capillary.
  • a cooling cycle is configured in which the refrigerant flows in this order of the compressor 102 and the compressor 102.
  • the compressor 102, the four-way switching valve 10, the indoor heat exchanger 104, the expansion valve 105, the outdoor heat exchanger 103, the four-way switching valve 10, and the compressor 102 It constitutes a heating cycle in which refrigerant flows. This switching between the heating cycle and the cooling cycle is performed by the switching operation of the four-way switching valve 10 by the slide type switching valve 1.
  • the four-way switching valve 10 is well-known, and includes a cylindrical valve body 11, a slide valve 12 slidably provided inside the valve body, and a high-pressure side conduit (D) communicating with the discharge port of the compressor 102.
  • a low pressure side conduit (S joint) 14 that communicates with the suction port of the compressor 102, an indoor conduit (E joint) 15 that communicates with the indoor heat exchanger 104, and an outdoor heat exchanger 103. and an outdoor conduit (C joint) 16.
  • the valve body 11 has plugs 17 and 18 that close both ends in the axial direction, so that the entire valve body 11 is configured as a sealed cylinder, and spaces A11 and A12 that sandwich the piston 19 that moves the slide valve 12 from the axial direction are formed. It is formed.
  • the slide type switching valve 1 of this embodiment has the configuration of a four-way switching valve, and as shown in FIG. , joint members (pipe parts) 61 to 64, and the fluid flow path is switched by moving the valve body 4 along a predetermined sliding direction.
  • the sliding direction of the valve body 4 is referred to as the X direction
  • two directions perpendicular to the X direction and mutually orthogonal are referred to as the Y direction and the Z direction
  • up and down in the Z direction are based on FIG. 1.
  • the valve body 2 is a valve housing made of, for example, brass or stainless steel, and has a valve chamber 2R inside thereof.
  • the valve body 2 includes a cylindrical tube portion 21 extending along the X direction (with the X direction being the axial direction), and a disk-shaped closing portion 22 provided to close the tube portion 21. It has a cylindrical shape with a bottom, and the space inside this becomes the valve chamber 2R.
  • the cylindrical portion 21 and the closing portion 22 are integrally formed by, for example, deep drawing of a thin metal plate, and are configured as one piece.
  • the cylindrical portion 21 and the closing portion 22 of the valve body 2 serve as a valve chamber forming portion that forms the valve chamber 2R.
  • the open side (the right side in FIG. 2) of the cylindrical portion 21 is referred to as one side in the X direction
  • the side closed by the closed portion 22 (the left side in FIG. 2) is referred to as the other side in the X direction.
  • a mounting opening 211 is formed in the cylindrical portion 21 (i.e., the side surface of the valve body 2) on one side in the Z direction (lower side in FIG. 2), and protrudes on the other side in the Z direction (upper side in FIG. 2).
  • a connecting portion 212 is formed.
  • the protruding connection portion 212 has a port 212A and is connected to a joint member 61 as described later.
  • the valve seat portion 3 is constructed separately from the valve body 2, and is formed of a suitable metal such as stainless steel into a generally cylindrical shape extending in the Z direction.
  • the valve seat portion 3 is inserted into the attachment opening 211 and fixed by brazing, and the valve seat surface 31, which is the upper surface thereof, is disposed within the valve chamber 2R.
  • the valve seat portion 3 is formed with three valve ports 32A to 32C that are open on the valve seat surface 31 and mounting holes 33A to 33C that communicate with each of the valve ports 32A to 32C. has been done.
  • the valve seat surface 31 is a planar sliding surface extending along the XY plane.
  • the attachment holes 33A to 33C are through holes extending along the Z direction, and each of the joint members 62 to 64 is connected to the attachment holes 33A to 33C.
  • the valve ports 32A to 32C are arranged in a straight line along the X direction, whereas the mounting holes 33A to 33C are arranged in a triangular shape in the XY plane. Therefore, the mounting holes 33A to 33C are connected to the valve ports 32A to 32C while being slightly offset within the XY plane (particularly in the Y direction).
  • the valve seat portion 3 includes a main body portion 36 as a small diameter portion and a flange portion as a large diameter portion provided below the main body portion 36 (on the opposite side from the valve seat surface 31). 37.
  • the outer peripheral surfaces of the main body portion 36 and the flange portion 37 are both cylindrical.
  • the outer diameter of the main body portion 36 is smaller than the inner diameter of the mounting opening 211, and the outer diameter of the flange portion 37 is larger than the inner diameter of the mounting opening 211. Therefore, in the valve seat section 3, the main body section 36 is inserted into the mounting opening 211, and the upper surface of the flange section 37 comes into contact with the lower surface around the mounting opening 211, thereby restricting the insertion.
  • the valve body 4 is a slide valve made of, for example, synthetic resin, and is formed in a bowl shape (dome shape) with an opening facing the valve seat surface 31 side.
  • a communication space 4R is formed inside the valve body 4, and this communication space 4R may communicate between the central valve port 32B and the valve port 32A on one side and not communicate with the valve port 32C on the other side.
  • the central valve port 32B and the other side valve port 32C are communicated with each other, and the one side valve port 32A is not communicated with each other.
  • the electromagnetic drive unit 5 includes a plunger 51, an attractor 52, a coil, and a coil spring 53 as a biasing means, and slides the valve body 4 along the X direction.
  • the plunger 51 is formed of a magnetic material into a columnar shape that extends along the X direction as a whole, and integrally includes a cylindrical portion 511 and a protruding portion 512 that protrudes from the cylindrical portion 511 to the other side.
  • the plunger 51 is housed in the cylindrical portion 21 of the valve body 2, and the cylindrical portion 21 functions as a plunger accommodating portion. Therefore, the valve body 2 integrally includes a valve chamber forming part (cylindrical part 21 and closing part 22) and a plunger housing part (cylindrical part 21).
  • the outer diameter of the cylindrical portion 511 is equal to or slightly smaller than the inner diameter of the cylindrical portion 21, and the plunger 51 is guided by the cylindrical portion 21 in the X direction.
  • a recess 513 for accommodating the coil spring 53 is formed at one end of the cylindrical portion 511. Further, pressure equalizing holes 511A are formed in the columnar portion 511 so as to extend across both ends in the X direction, so that no pressure difference occurs in the space on both sides of the plunger 51 in the X direction.
  • the protruding portion 512 has a smaller outer diameter than the cylindrical portion 511 and is spaced apart from the inner circumferential surface of the cylindrical portion 21. As shown in FIG. 4, the protruding portion 512 is formed with a concave holding portion 514 that opens toward the valve seat surface 31, and the valve body 4 is directly held by being placed within the holding portion 514. ing. A coil spring 54 is provided between the valve body 4 and the holding portion 514 to bias the valve body 4 toward the valve seat surface 31 .
  • the protrusion 512 has a flat end surface 515 extending along the YZ plane on the other side in the X direction.
  • the attractor 52 is made of a magnetic material and has a cylindrical shape, and is provided so as to close an opening on one side in the X direction of the cylindrical portion 21 of the valve body 2. That is, the suction element 52 is arranged on one side of the plunger 51 in the X direction. One end of the attractor 52 is joined to the cylindrical portion 21 by, for example, welding.
  • the coil is provided outside the cylindrical portion 21 so as to correspond to the attractor 52 in the X direction, and is switched between an energized state and a non-energized state.
  • the coil spring 53 is provided between the plunger 51 and the attractor 52 by having one end in contact with the attractor 52 and the other end being accommodated in the recess 513. Thereby, the coil spring 53 urges the plunger 51 to the other side.
  • the electromagnetic drive unit 5 is configured to move the plunger 51 in the X direction by switching between the energized state and the de-energized state of the coil, thereby moving the valve body 4 connected to the plunger 51.
  • the joint member 64 connected to the mounting hole 33A on one side is connected to one space A11 of the four-way switching valve 10, and the joint member 63 connected to the central mounting hole 33B is connected to the low-pressure side conduit of the four-way switching valve 10. 14 and the other side mounting hole 33C is connected to the other space A12 of the four-way switching valve 10, and the coupling member 61 connected to the protruding connection part 212 is connected to the four-way switching valve 10. It is connected to the high pressure side conduit 13 of.
  • valve port 32A is closed to the valve chamber 2R, and the valve port 32A is opened to the valve chamber 2R.
  • the high-pressure fluid that has flowed into the valve chamber 2R from the port 212A passes through the valve port 32A and heads toward the space A11 of the four-way switching valve 10.
  • the valve port 32B is connected to the low pressure side conduit 14, and the space A12 connected to the valve port 32C has a low pressure. Therefore, the pressure in the space A11 is higher than that in the space A12, and this differential pressure causes the piston 19 of the four-way switching valve 10 and the slide valve 12 to move toward the space A11.
  • valve port 32B and the valve port 32A are blocked by the valve body 4 from the valve chamber 2R,
  • the valve port 32C is open to the valve chamber 2R.
  • the high-pressure fluid that has flowed into the valve chamber 2R from the port 212A passes through the valve port 32C and heads toward the space A12 of the four-way switching valve 10.
  • the valve port 32B is connected to the low pressure side conduit 14, and the space A11 connected to the valve port 32A has a low pressure. Therefore, the pressure in the space A12 is higher than that in the space A11, and this differential pressure causes the slide valve 12 and the piston 19 of the four-way switching valve 10 to move toward the space A12.
  • valve body 4 allows the valve port 32B and the valve port 32A to communicate with each other.
  • the valve seat portion 3 is attached to the valve body 2 by inserting the main body portion 36 into the attachment opening 211 as described above.
  • the valve seat 3 is inserted into the mounting opening 211 such that the other end 34 in the X direction of the outer peripheral surface of the main body 36 of the valve seat 3 contacts the inner peripheral surface 211A of the mounting opening 211. It is located in At this time, due to the dimensional difference between the inner diameter of the mounting opening 211 and the outer diameter of the main body 36, the other end 35 in the X direction of the outer circumferential surface of the main body 36 of the valve seat 3 and the inner circumferential surface 211A. , a gap 7 is formed between them.
  • the valve seat part 3 is fixed to the valve body 2 by, for example, brazing, and a brazing material 8 as a fixing material is provided in the gap part 7.
  • a brazing material 8 as a fixing material is provided in the gap part 7.
  • no or almost no brazing material 8 is provided between the end portion 34 and the inner circumferential surface 211A.
  • the protruding connection portion 212 is a burring-shaped portion that protrudes outward from the valve body 2, and a reduced diameter portion 212B whose diameter is reduced toward the inner circumference is formed at its tip.
  • the coupling member 61 is a capillary, and includes a tubular portion 611 whose inner diameter and outer diameter are approximately constant, and an enlarged diameter tip portion 612 whose inner diameter and outer diameter gradually increase from the tubular portion 611 toward the tip side. , and the protruding connection portion 212 is disposed inside the enlarged diameter tip portion 612.
  • a strainer 9 for removing foreign matter is arranged inside the enlarged diameter tip portion 612 and outside the protruding connection portion 212.
  • the outer diameter of the strainer 9 is smaller than the opening of the reduced diameter portion 212B, and the strainer 9 is restricted from entering into the valve chamber 2R. Further, the outer diameter of the strainer 9 is larger than the inner diameter of the tubular portion 611, so that the strainer 9 does not enter into the tubular portion 611. Note that the protruding connection portion 212 and the joint member 61 are fixed by, for example, brazing.
  • the plunger 51 comes into contact with the closing portion 22 and its movement is restricted, so that it is possible to have a configuration in which the plunger 51 does not collide with the valve seat portion 3, and the occurrence of damage to the valve seat portion 3 and its surroundings can be achieved. Damage can be suppressed.
  • the closing portion 22 is a necessary portion to form the valve chamber 2R, and there is no need to provide an additional stopper.
  • valve ports 32A to 32C can be easily opened and closed normally by the valve body 4, and problems can be suppressed.
  • valve seat part 3 has a main body part 36 and a flange part 37, and insertion is restricted by the flange part 37, the relative position of the valve main body 2 and the valve seat part 3 in the Z direction, which is the insertion direction. Errors can be suppressed. That is, in the insertion direction, an error in the position of the valve seat surface 31 within the valve chamber 2R can be suppressed, and the valve body 4 can be easily slid against the valve seat surface 31 normally.
  • the cylindrical portion 21 of the valve body 2 constitutes the valve chamber forming portion and the plunger accommodating portion, it is possible to suppress errors in relative position that may occur when these are constituted by separate members. . That is, it is possible to suppress errors in the relative positions of the plunger 51 and the attractor 52, and to make it easier to drive the plunger 51 normally by magnetic force.
  • defects in the slide type switching valve 1 can be suppressed by suppressing damage to the valve seat portion 3 and its surroundings while suppressing an increase in the number of parts and additional configurations.
  • the attraction force can be secured, and there is no need to increase the magnetic force to cope with the error. It is possible to suppress the increase in size.
  • the other end 34 of the valve seat 3 contacts the inner peripheral surface 211A of the mounting opening 211, and a gap 7 is formed between the one end 35 and the inner peripheral surface 211A.
  • the valve seat portion 3 can be fixed with the other end of the inner peripheral surface 211A of the mounting opening 211 in the X direction as a reference, and the valve seat portion 3 can be Errors in the relative position between the main body 2 and the valve seat portion 3 can be suppressed.
  • the plunger 51 contacts a part of the valve body 2, and an error in the relative position between the valve body 2 and the plunger 51 in the X direction is suppressed.
  • the error in the relative position between the plunger 51 and the valve seat portion 3 can be suppressed, the error in the relative position between the valve body 4 and the valve ports 32A to 32C can be suppressed, and the slide type switching valve 1 problems can be suppressed.
  • the flat end surface 515 on the other side of the plunger 51 contacts the closing portion 22 in a planar manner, increasing the contact area and dispersing the load at the time of a collision, suppressing deformation and damage due to the collision. Malfunctions of the slide type switching valve 1 can be suppressed.
  • the valve body 4 can be directly held by the plunger 51, and the valve body 4 can be held directly. No special parts are required. Thereby, dimensional errors and relative position errors that may occur due to dedicated parts can be suppressed, and defects in the slide type switching valve 1 can be suppressed.
  • the cylindrical portion 21 of the valve body 2 has a protruding connection portion 212 that protrudes toward the outside of the valve chamber 2R, and the protrusion connection portion 212 is inserted into the inside of the joint member 61.
  • a contact area between the valve body 2 and the joint member 61 can be secured, and the fixing strength can be improved. At this time, there is no need to use a separate part to ensure the contact area, and an increase in the number of parts can be suppressed.
  • the slide type switching valve 1 is used to switch the flow path of the four-way switching valve 10 in the refrigeration cycle 100, the malfunction of the slide type switching valve 1 is suppressed as described above, and the refrigeration cycle 100 is operated normally. You can make it easier to do so.
  • the present invention is not limited to the embodiments described above, and includes other configurations that can achieve the object of the present invention, and the present invention also includes the following modifications.
  • the other end 34 of the valve seat 3 contacts the inner circumferential surface 211A of the mounting opening 211, and the gap 7 exists between the one end 35 and the inner circumferential surface 211A.
  • one end 35 may be in contact with the inner circumferential surface 211A, and a gap may be formed between the other end 34 and the inner circumferential surface 211A.
  • the above-mentioned gap does not need to be formed.
  • both one end and the other end of the valve seat portion may not contact the inner circumferential surface of the mounting opening, and a gap may be formed in both; For example, it is easy to form a continuous joint over the entire circumference, and it is easy to improve the joint strength.
  • the valve seat portion may be configured integrally with the valve body.
  • the flange portion 37 having a cylindrical outer peripheral surface is formed as the large diameter portion, but the outer diameter of the large diameter portion is partially larger than the inner diameter of the mounting opening.
  • the large diameter portion may be formed by a protrusion.
  • the valve seat portion may be positioned in the insertion direction by another method. For example, a mark such as a line may be placed on the outer circumferential surface of the valve seat portion, and the position may be determined using this mark.
  • the end surface 515 of the plunger 51 contacts the closing portion 22 in a planar manner, but the contact is not limited to this manner.
  • some unevenness may be formed on the other end surface of the plunger or on one side of the closing part, or a protrusion extending from the plunger toward the other side may contact the closing part, A protrusion extending from the closure toward one side may contact the plunger.
  • valve body 4 is arranged and held within the holding portion 514 of the plunger 51, but depending on the shape and dimensions of the valve body and the plunger, the valve body may be attached to other parts. It may also be configured to be connected to the plunger via the plunger.
  • the cylindrical portion 21 of the valve body 2 has the protruding connection portion 212, and the protrusion connection portion 212 is connected to the joint member 61.
  • the pipe portion may be directly connected, or the pipe portion may be connected to the valve body via a connecting part.
  • valve ports 32A to 32C are formed on the valve seat surface 31, two of which communicate with the valve body 4 (closed with respect to the valve chamber 2R), and the remaining one is a valve chamber.
  • the number of valve ports is not limited to three, and the manner in which the valve ports are opened and closed by the valve body is also not limited to this. That is, the valve body does not need to have the function of communicating the plurality of valve ports, and may have the function of simply opening and closing the valve ports.
  • the slide type switching valve 1 is used to switch the flow path of the four-way switching valve 10 in the refrigeration cycle 100, but the application of the slide type switching valve is not limited to this, and an appropriate device may be used. It may be used by incorporating it into a cycle.
  • SYMBOLS 1...Sliding type switching valve 2...Valve body, 21...Cylinder part (valve chamber forming part, plunger accommodating part), 211...Mounting opening, 211A...Inner peripheral surface, 212...Protruding connection part, 22...Closing part ( Valve chamber forming part), 2R... Valve chamber, 3... Valve seat, 31... Valve seat surface, 32A to 32C... Valve port, 34... End on the other side, 35... End on one side, 36... Main body.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Thermal Sciences (AREA)
  • Multiple-Way Valves (AREA)
  • Magnetically Actuated Valves (AREA)
  • Sliding Valves (AREA)

Abstract

La présente invention concerne une soupape de commutation de type coulissant et un système de cycle de réfrigération qui peuvent empêcher des dysfonctionnements.　Une soupape de commutation de type coulissant (1) comprend : un corps de soupape (2) ; une partie siège de soupape (3) ; un élément de soupape (4) ; une partie d'entraînement électromagnétique (5) ; et des éléments joint (61-64). Le mouvement d'un piston (51) est limité en venant en contact avec une partie de fermeture (22), et en conséquence de cela, il est possible de supprimer un endommagement de la partie siège de soupape (3) et de l'environnement de cette dernière, éliminant la nécessité de fournir en plus une butée. Une section cylindrique (21) du corps de soupape (2) forme une section de formation de chambre de soupape et une section de réception de piston à l'intérieur de cette dernière, et ceci permet de supprimer des erreurs de position relative qui peuvent se produire si ces sections sont formées par des éléments séparés. Grâce à cette configuration, des orifices de soupape (32A–32C) peuvent être facilement ouverts/fermés normalement par l'élément de soupape (4), et des dysfonctionnements peuvent être supprimés.
PCT/JP2023/014190 2022-04-08 2023-04-06 Soupape de commutation de type coulissant et système à cycle de réfrigération WO2023195512A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202380015429.5A CN118451270A (zh) 2022-04-08 2023-04-06 滑动式切换阀以及冷冻循环系统

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JP2022-064641 2022-04-08
JP2022064641A JP2023154965A (ja) 2022-04-08 2022-04-08 スライド式切換弁および冷凍サイクルシステム

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WO2023195512A1 true WO2023195512A1 (fr) 2023-10-12

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JP (1) JP2023154965A (fr)
CN (1) CN118451270A (fr)
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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62196477A (ja) * 1986-02-21 1987-08-29 Matsushita Refrig Co 冷凍サイクル用四方弁
JP2015048871A (ja) * 2013-08-30 2015-03-16 株式会社鷺宮製作所 流路切換弁
JP2016136068A (ja) * 2016-04-13 2016-07-28 株式会社鷺宮製作所 切換弁

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62196477A (ja) * 1986-02-21 1987-08-29 Matsushita Refrig Co 冷凍サイクル用四方弁
JP2015048871A (ja) * 2013-08-30 2015-03-16 株式会社鷺宮製作所 流路切換弁
JP2016136068A (ja) * 2016-04-13 2016-07-28 株式会社鷺宮製作所 切換弁

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JP2023154965A (ja) 2023-10-20

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