JP2020024043A - Control valve - Google Patents

Abstract

To provide a control valve and a method of manufacturing the same which can reduce the size and the weight of the control valve.SOLUTION: A control valve 1 includes a valve body 10 having a valve chamber VS formed therein, a connecting member 20 fixed to the valve body, and a can 30 fixed to the valve body. The connecting member includes a fastening part for connecting a piping component. The connecting member includes a hole through which first piping of the valve body passes, and a hole which is provided in the fastening part so as to receive the fastening member.SELECTED DRAWING: Figure 3

Description

  The present invention relates to a control valve.

  For example, in a control valve such as a flow control valve disposed in a circulation flow path of a refrigerant of an air conditioner, it is known that a control valve is assembled by connecting a valve body including a valve chamber and a can housing a valve drive unit. Have been.

  As a related technique, Patent Document 1 discloses a control valve driven by a stepping motor. In the control valve described in Patent Literature 1, a flange is provided at a lower end of the can. Then, the can is fixed to the valve body by the flange being sandwiched between the ring screw and the valve body.

  Patent Document 2 discloses a method of manufacturing a valve housing for a control valve. In the manufacturing method described in Patent Literature 2, a mold body is formed by integrally molding a periphery of a metal valve casing unit with a mold material. In the manufacturing method described in Patent Document 2, a lid member is fixed to the lower end of the plunger case. When the plunger case is fixed to the mold body, the lid member at the lower end of the plunger case is fixed to the mold body by caulking the end of the metal valve casing unit.

JP 2014-196810 A Japanese Patent No. 5465686

  In the control valves described in Patent Literature 1 and Patent Literature 2, there are many dedicated components for connecting units constituting the control valve. In other words, in the control valves described in Patent Literature 1 and Patent Literature 2, the connection structure between the units does not correspond to reduction in size and weight of the control valve.

  Therefore, an object of the present invention is to provide a control valve that enables a reduction in size and weight.

  To achieve the above object, a control valve according to the present invention includes a valve body having a valve chamber formed therein, a connection member fixed to the valve body, and a can fixed to the valve body. . The connection member is made of resin. The connection member includes a fastening portion for connecting a piping component. The connection member has a hole through which a first pipe of the valve body passes, and a hole provided in the fastening portion for receiving a fastening member.

  In the above control valve, the valve body may be made of stainless steel. Further, the can may be made of stainless steel.

  In the control valve described above, the valve body and the can may be welded and fixed.

  In the control valve described above, the valve body and the connection member may be integrated by insert molding.

  In the above-described control valve, the valve body may include a first pipe having a first flange portion. In addition, the connection member may include a first flange receiving portion disposed around the first pipe.

  In the above control valve, the number of the fastening portions may be one.

  The above-mentioned control valve may further comprise a rotor member arranged inside the can and a stator member arranged outside the can.

  According to the present invention, it is possible to provide a control valve capable of reducing the size and weight.

FIG. 1 is a schematic side view of a control valve 1 according to the embodiment. FIG. 2 is a schematic front view of the control valve 1 in the embodiment. FIG. 3 is a sectional view taken along the line AA of FIG. FIG. 4 is a sectional view taken along line BB of FIG. FIG. 5 is a schematic cross-sectional view illustrating an example of a connection structure between a connection member and a piping component. FIG. 6 is a flowchart illustrating an example of a control valve manufacturing method.

  Hereinafter, a control valve and a method of manufacturing the control valve in the embodiment will be described with reference to the drawings. In the following description of the embodiments, portions and members having the same function are denoted by the same reference numerals, and a repeated description of the portions and members denoted by the same reference numerals will be omitted. Hereinafter, an example in which the control valve 1 is an electric valve will be described, but the control valve may be an electromagnetic valve.

(Embodiment)
The control valve 1 according to the embodiment will be described with reference to FIGS. FIG. 1 is a schematic side view of a control valve 1 according to the embodiment. FIG. 2 is a schematic front view of the control valve 1 in the embodiment. FIG. 3 is a sectional view taken along the line AA of FIG. FIG. 4 is a sectional view taken along line BB of FIG.

  Referring to FIGS. 1 and 2, the control valve 1 includes a valve-side unit 2 that defines a flow path and a valve chamber, and a drive unit 3 that drives a valve element. The valve unit 2 includes a valve body 10 and a connection member 20, and the drive unit 3 includes a can 30.

  With reference to FIG. 3, the control valve 1 according to the embodiment includes a valve body 10 having a valve chamber VS formed therein, a connecting member 20 fixed to the valve body 10, and a can 30 fixed to the valve body 10. And

  The valve body 10 is made of metal. For this reason, the strength of the valve body 10 is high, and the risk of liquid leakage from the valve body 10 is small.

  The can 30 is made of metal. The valve body 10 and the can 30 include the same metal material. More specifically, the main material of valve body 10 (that is, the element with the highest content ratio) and the main material of can 30 (that is, the element with the highest content ratio) match. Therefore, it is easy to directly fix the can 30 to the valve body 10. For example, the valve body 10 and the can 30 can be fixed by welding. In the example shown in FIG. 3, the valve body 10 and the lower end 30a of the can are fixed by welding. Since the main material of the valve body 10 and the main material of the can 30 are the same, the risk of electrolytic corrosion is reduced. The material of the valve body 10 and the material of the can 30 may be completely the same.

  The valve body 10 is made of, for example, stainless steel such as SUS304, and the can 30 is made of stainless steel such as SUS304. By making the valve body 10 and the can 30 made of stainless steel, the risk of corrosion of the valve body 10 and the can 30 is reduced.

  In the example illustrated in FIG. 3, the valve body 10 and the can 30 are fixed to each other without interposing a seal member such as an O-ring. Therefore, the number of parts is reduced. Further, when the valve body 10 and the can 30 are fixed by welding, the risk of liquid leakage is lower than when the valve body 10 and the can 30 are fixed by crimping or the like, for example.

  As shown in FIG. 4, the connection member 20 includes a fastening portion 22 for connecting a pipe component (for example, a first connection pipe 811, a second connection pipe 831, or a block component including a connection pipe to be described later). Is provided. In the example illustrated in FIG. 4, the fastening unit 22 includes a hole 22h (fastening hole) that receives a fastening member such as a screw or a bolt. The hole 22h may include a through hole or a non-through hole.

  The connection member 20 is made of resin. For this reason, the weight of the connection member 20 is reduced. The resin forming the connection member 20 is, for example, polyphenylene sulfide resin (PPS resin).

  The connection between the metal valve body 10 and the resin connection member 20 is preferably performed by insert molding. In other words, it is preferable that the valve body 10 and the connecting member 20 are integrated by insert molding. For example, after arranging the metal valve body 10 in the mold, a resin material is poured into the mold. By solidifying the resin material, a composite component in which the valve body 10 and the resin connection member 20 are integrated is insert-molded. The insert-molded composite component includes a valve body 10 and a connection member 20 disposed around a part of the valve body 10.

  When the connection between the metal valve body 10 and the resin connection member 20 is performed by insert molding, a dedicated fastening member for connecting the valve body 10 and the connection member 20 is not required. Further, in the example shown in FIG. 3, the valve body 10 and the connecting member 20 are fixed to each other without interposing a sealing member such as an O-ring. Therefore, the number of components of the control valve 1 is reduced, the weight of the control valve 1 is reduced, and the size of the control valve 1 is reduced. When the connection between the metal valve body 10 and the resin connection member 20 is performed by insert molding, the risk of liquid leakage from between the valve body 10 and the connection member 20 is small.

  In the embodiment, the control valve 1 includes a valve-side unit 2 including a metal valve body 10 and a resin connection member 20. The valve-side unit 2 includes both a fastening portion 22 to which a piping component described later is fastened, and a valve chamber VS through which fluid flows. In addition, the number of parts and man-hours required for assembling the valve unit 2 are small. By reducing the number of parts, the weight of the control valve 1 is reduced, and the size of the control valve 1 is reduced. In the embodiment, since the valve body 10 and the can 30 include the same metal material, it is easy to directly fix the can 30 to the valve body 10. Furthermore, in the embodiment, since the connection member 20 is made of resin, the weight of the control valve 1 is reduced.

  In the embodiment, when the valve body 10 and the can 30 are made of stainless steel, the valve body 10 and the can 30 are hardly corroded.

  Further, in the embodiment, when the valve body 10 and the can 30 are welded and fixed, the connection structure between the valve body 10 and the can 30 becomes strong, and liquid leakage hardly occurs. Further, when the valve body 10 and the can 30 are fixed by welding, a dedicated fastening member and a dedicated seal member for connecting the valve body 10 and the can 30 are unnecessary. Therefore, the number of components of the control valve 1 is further reduced, the weight of the control valve 1 is reduced, and the size of the control valve 1 is reduced.

  When a resin member is connected to the valve body 10, the resin member may be melted when the valve body 10 and the can 30 are welded. However, in the embodiment, since the resin-made connecting member 20 is located at a position separated from the welded portion, there is no risk that the resin-made connecting member 20 is melted when the valve body 10 and the can 30 are welded.

  In the embodiment, when the valve body 10 and the connecting member 20 are integrated by insert molding, a dedicated fastening member and a dedicated sealing member for connecting between the valve body 10 and the connecting member 20. Is unnecessary. Therefore, the number of components of the control valve 1 is further reduced, the weight of the control valve 1 is reduced, and the size of the control valve 1 is reduced.

(More detailed description of the embodiment)
Each configuration of the control valve 1 in the embodiment will be described in more detail with reference to FIGS.

(Valve body 10)
In the example illustrated in FIG. 3, the valve body 10 includes a first pipe 11 that defines a first flow path FP1, a second pipe 13 that defines a second flow path FP2, a valve chamber VS, and a valve seat 14. Is provided. The first flow path FP1 and the valve chamber VS communicate with each other, and the valve chamber VS and the second flow path FP2 communicate with each other. The valve seat 14 is provided on a wall surface of a partition 15 that partitions the valve chamber VS from the second flow path FP2.

  The valve body 10 may include the first connection portion 16 to which the guide unit 50 that guides the movement of the valve shaft 70 is connected.

  In the example illustrated in FIG. 3, a first flange portion 113 is provided at an end of the first pipe 11. A second flange portion 133 is provided at an end of the second pipe 13. The first flange portion 113 may be provided with a first receiving surface 113a that comes into contact with a first seal member 91 described later. Two receiving surfaces 133a may be provided.

  In the example shown in FIG. 3, the valve body 10 is a single metal member formed integrally, but the valve body 10 is formed by joining a plurality of separately prepared metal parts. May be done.

  The valve body 10 may be formed by performing a cutting process, a polishing process, or the like on a metal block formed by forging, pressing, casting, or the like.

(Connecting member 20)
The connection member 20 includes a first flange receiving portion 213 disposed around the first pipe 11 (more specifically, the first flange portion 113). The first flange receiving portion 213 is provided with a hole 213h through which the first pipe 11 passes.

Further, the connection member 20 includes a second flange receiving portion 233 arranged around the second pipe 13 (more specifically, the second flange portion 133). The second flange receiving portion 233 is provided with a hole 233h through which the second pipe 13 passes.

  In the example shown in FIG. 4, the first flange receiving portion 213 and the second flange receiving portion 233 are connected via the fastening portion 22. Alternatively, the first flange receiving portion 213 and the second flange receiving portion 233 may be separated from each other.

  In the example illustrated in FIG. 4, the fastening portion 22 includes a first fastening portion 22a on the first direction side (the first flange receiving portion 213 side) and a second fastening portion 22a on the second direction side (the second flange receiving portion 233 side). And a fastening portion 22b. The fastening portion 22 has a hole 22h, and the hole 22h has a female screw portion 22c that is screwed with a male screw portion of a fastening member (such as a screw or a bolt). In the case where the fastening portion 22 and the piping component 80 described below are connected using bolts and nuts, the hole 22h may be a screwless hole. In the example illustrated in FIG. 4, the hole 22h is a single hole extending from the first end face 22-1 of the fastening part 22 to the second end face 22-2 of the fastening part 22, but the hole 22h is , May be separated into two at the center. In other words, a partition may be arranged at a portion indicated by the arrow AR.

  In the example illustrated in FIG. 4, the connection member 20 includes only one fastening portion 22 at a position eccentric from the center axis AX of the first pipe 11. For this reason, the number of parts of the control valve 1 is reduced as compared with the case where there are two or more fastening portions 22. When only one fastening part 22 is provided, the positional relationship between the fastening part 22 and the first pipe 11 and the second pipe 13 is easily adjusted, and the degree of freedom in designing the control valve 1 is improved. I do. However, in the embodiment, the number of the fastening portions 22 is not limited to one, and the number of the fastening portions 22 may be two or more. In the present specification, with respect to the number of the fastening portions 22, a fastening portion in which both the distance from the central axis AX of the first pipe 11 and the direction from the central axis AX match each other is counted as the same fastening portion. You. For this reason, in the example illustrated in FIG. 4, one fastening part 22 is configured by the first fastening part 22a and the second fastening part 22b.

(Can 30)
In the example illustrated in FIG. 3, the can 30 includes a cylindrical side wall 32 and an end wall 34. The end wall 34 has a dome shape that is convex upward. The side wall 32 extends downward from the outer peripheral portion of the end wall 34. The lower end 30a of the side wall 32 is annular, and the annular lower end 30a and the valve body 10 are welded to each other.

(Rotor member 64 and stator member 62)
In the example shown in FIG. 3, the control valve 1 includes a rotor member 64 arranged inside the can 30 and a stator member 62 arranged outside the can 30.

  Stator member 62 includes a bobbin 622 and a coil 620 wound around the bobbin. A pulse signal is input to the coil 620 from an electric wire connected to a power supply. When a pulse signal is input to the coil 620, the rotor member 64 rotates by a rotation angle corresponding to the number of pulses of the pulse signal. That is, in the example illustrated in FIG. 3, the stepping motor is configured by the stator member 62 and the rotor member 64.

  In the example shown in FIG. 3, the stator member 62 is attached to the side wall 32 of the can 30. In addition, the stator member 62 is housed in the housing 4 made of resin.

  The rotor member 64 is disposed inside the side wall 32 of the can 30 so as to be rotatable with respect to the can 30. At least a part of the rotor member 64 is formed of a magnetic material, and the rotor member 64 includes a magnet.

  An example of the rotor member 64 will be described in more detail. The rotor member 64 has an outer cylinder 641 including a magnet and an inner cylinder 640 including a first screw portion 640c. The magnet included in the outer cylinder 641 is, for example, a plastic magnet.

  The material of the inner cylinder 640 is, for example, metal. The first screw portion 640c of the inner cylinder 640 is a female screw portion. The first screw portion 640c is screwed with the second screw portion 50c (male thread portion) of the guide unit 50.

  In the example illustrated in FIG. 3, the rotor member 64 includes a connecting member 643. The upper end of the outer cylinder 641 and the upper end of the inner cylinder 640 are connected via a connecting member 643. The connecting member 643 has, for example, a ring shape. The material of the connecting member 643 is, for example, a metal such as brass. The connecting member 643 and the outer cylinder 641 (plastic magnet) may be integrally formed by insert molding. The connecting member 643 and the inner cylinder 640 may be fixed by caulking.

  In the example illustrated in FIG. 3, the rotor member 64 includes a positioning member 646. The positioning member 646 defines a lower movement limit position of the rotor member 64. Specifically, when the rotor member 64 moves downward while rotating, the positioning member 646 and the stopper 58 come into contact. The position where the positioning member 646 contacts the stopper 58 is the lower limit position of the movement of the rotor member 64.

  The stopper 58 can be provided on any member that does not rotate with the rotor member 64. In the example shown in FIG. 3, the stopper 58 is provided on the guide unit 50. Alternatively, the stopper 58 may be provided on the can 30.

  In the example shown in FIG. 3, the rotor member 64 and the guide unit 50 are screwed together via the first screw portion 640c and the second screw portion 50c. For this reason, the rotor member 64 moves up and down with rotation. Alternatively, the rotor member 64 may be a rotor member that does not move up and down.

(Valve drive unit)
The valve drive section is a mechanism that raises and lowers the valve element 75 via the valve shaft 70 by rotation of the rotor member 64, and is housed in the can 30. The valve shaft 70 (valve shaft) is a rod-shaped member that supports the valve body 75. A valve body 75 is disposed at the first end 70a of the valve shaft 70. When the valve shaft 70 moves downward, the valve body 75 sits on the valve seat 14, and when the valve shaft 70 moves upward, the valve body 75 separates from the valve seat 14.

  In the example shown in FIG. 3, the second end 70b of the valve shaft 70 is supported by the rotor member 64. In the example shown in FIG. 3, the lower surface of the second end 70b of the valve shaft 70 is supported by the upper surface of the rotor member 64 (more specifically, the upper surface of the inner cylinder 640).

  In the example shown in FIG. 3, the second end 70b of the valve shaft 70 is supported by the valve shaft support 648 (for example, a concave portion) of the rotor member 64. The valve shaft 70 is urged downward by an urging member 76. Therefore, when the valve element 75 is separated from the valve seat 14, the second end 70 b of the valve shaft 70 is in contact with the valve shaft support 648 of the rotor member 64. Therefore, the valve shaft 70 moves up and down together with the rotor member 64. The second end 70 b of the valve shaft 70 and the valve shaft support 648 are pressed against each other by the urging force of the urging member 76. Therefore, when the valve element 75 is separated from the valve seat 14, the valve shaft 70 rotates together with the rotor member 64.

  When the rotor member 64 further moves downward while rotating after the valve body 75 contacts the valve seat 14, the urging member 76 contracts, and the valve body 75 is pressed against the valve seat 14. Then, the valve shaft 70 (and the valve body 75) stops rotating due to the frictional force between the valve body 75 and the valve seat 14.

  In the example shown in FIG. 3, the movement of the valve shaft 70 (the vertical movement and the rotational movement around the center axis) is guided by the inner peripheral surface of the guide unit 50. In other words, the gap between the outer peripheral surface of the valve shaft 70 and the inner peripheral surface of the guide unit 50 is a minute clearance. Further, in the example shown in FIG. 3, a screw portion that is screwed with another member is not provided on the outer surface of the valve shaft 70.

  In the example illustrated in FIG. 3, the urging member 76 is disposed between the rotor member 64 and the valve shaft 70 (more specifically, a step portion of the valve shaft 70).

  The urging member 76 has a function of urging the valve shaft 70 downward to press the valve body 75 toward the valve seat 14 when the valve body 75 is seated on the valve seat 14. In addition, the urging member 76 has a function of urging the rotor member 64 upward, bringing the rotor member 64 and the valve shaft 70 into pressure contact with each other, and causing the movement of the valve shaft 70 to follow the movement of the rotor member 64. .

  In the example shown in FIG. 3, the valve shaft 70 moves in the axial direction. That is, the control valve 1 is a poppet valve in which the valve body 75 moves in a direction perpendicular to the valve seat surface. Alternatively, the control valve 1 may be a valve other than a poppet valve, for example, a ball valve, a butterfly valve, or the like.

(Piping parts)
With reference to FIG. 5, an example of the piping component 80 connected to the fastening portion 22 of the connection member 20 will be described. FIG. 5 is a schematic cross-sectional view illustrating an example of a connection structure between the connection member 20 and the piping component 80.

  In the example illustrated in FIG. 5, the piping component 80 includes a first piping component 81 connected to the fastening part 22 (first fastening part 22a).

  The first piping component 81 includes a piping connection portion 810 in which the first connection pipe 811 is arranged, and a piping component side fastening portion 815 that is fastened to the fastening portion 22 (first fastening portion 22a).

  The flow path in the first connection pipe 811 communicates with the flow path in the first pipe 11. In the example shown in FIG. 5, the surface of the pipe connection part 810 and the surface of the first flange receiving part 213 are in contact with each other. A first seal member 91 (such as an O-ring) is disposed in a space formed by the pipe connection part 810, the first flange receiving part 213, and the first pipe 11. The first seal member 91 is sandwiched between the pipe connection portion 810 and the first receiving surface 113a of the first flange portion 113.

  In the example shown in FIG. 5, a hole 815h into which a fastening member F1 such as a bolt or a screw is inserted is formed in the piping-part-side fastening portion 815.

  In the example illustrated in FIG. 5, the piping component 80 includes a second piping component 83 connected to the fastening unit 22 (the second fastening unit 22b).

  The second piping component 83 includes a piping connection portion 830 in which the second connection pipe 831 is arranged, and a piping component side fastening portion 835 that is fastened to the fastening portion 22 (the second fastening portion 22b).

  The flow path in the second connection pipe 831 communicates with the flow path in the second pipe 13. In the example shown in FIG. 5, the surface of the pipe connection part 830 and the surface of the second flange receiving part 233 are in contact with each other. A second seal member 93 (such as an O-ring) is arranged in a space formed by the pipe connection part 830, the second flange receiving part 233, and the second pipe 13. The second seal member 93 is sandwiched between the pipe connection part 830 and the second receiving surface 133a of the second flange part 133.

  In the example illustrated in FIG. 5, a hole 835 h into which a fastening member F <b> 2 such as a bolt or a screw is inserted is formed in the piping component side fastening portion 835.

  The piping component 80 is made of, for example, metal. In the example illustrated in FIG. 5, the piping component 80 is a block-shaped block component, but the piping component 80 may be the piping itself (for example, the first connection pipe 811 and the second connection pipe 831).

(Method of Manufacturing Control Valve in Embodiment)
An example of a method for manufacturing a control valve according to the embodiment will be described with reference to FIG. FIG. 6 is a flowchart illustrating an example of a control valve manufacturing method.

  In the first step ST1, a valve-side unit 2 including a metal valve body 10 and a resin connection member 20 is prepared. For example, first, the valve body 10 including the valve chamber VS is inserted into a mold. Second, a resin material is poured into the molding die. Thus, the valve unit 2 including the metal valve body 10 and the resin connection member 20 is insert-molded.

  Note that the connection member 20 included in the valve-side unit 2 manufactured in the first step ST1 includes a fastening portion 22 for connecting the piping component 80.

  In the second step ST2, the metal valve body 10 and the metal can 30 are directly fixed. For example, by welding the valve main body 10 and the can 30, the valve main body 10 and the can 30 are directly fixed.

  In the second step ST2, a valve drive unit such as the rotor member 64 may be housed inside the can 30 connected to the valve body 10. When the control valve 1 is an electromagnetic valve, the valve driving unit is a plunger (for example, a movable iron piece), and the energy applying unit is a solenoid (coil).

  Between the first step ST1 and the second step ST2, a step of fixing the guide unit 50 for guiding the movement of the valve shaft 70 to the valve body 10 may be executed. The step of fixing the guide unit 50 to the valve body 10 is performed, for example, by screwing the guide unit 50 to the first connection portion 16 of the valve body 10. In this case, a seal member such as an O-ring may be arranged between the guide unit 50 and the valve body 10.

  As described above, in the embodiment, the control valve 1 can be easily manufactured without requiring a complicated operation.

(Connection between control valve 1 and piping component 80)
An example of a method for connecting the control valve 1 and the piping component 80 will be described with reference to FIG.

  In the third step ST3, in a state where the pipe connection part 810 of the first pipe part 81 and the first pipe 11 of the valve body 10 are aligned, the pipe connection part 810 and the first flange receiving part of the connection member 20 are placed. 213 with each other. At this time, a first seal member 91 may be arranged between the pipe connection part 810 and the first pipe 11.

  In the fourth step ST <b> 4, the piping component side fastening portion 815 of the first piping component 81 and the fastening portion 22 of the connection member 20 are brought into contact with each other. The fourth step ST4 may be executed before the third step ST3, may be executed after the third step ST3, or may be executed simultaneously with the third step ST3.

  In the fifth step ST5, the piping component side fastening portion 815 of the first piping component 81 and the fastening portion 22 of the connection member 20 are fastened. Fastening between the piping component side fastening portion 815 and the fastening portion 22 may be performed by inserting the fastening member F1 into the hole 815h of the piping component side fastening portion 815 and the hole 22h of the fastening portion 22. .

  In the sixth step ST6, in a state where the pipe connection part 830 of the second pipe part 83 and the second pipe 13 of the valve body 10 are aligned, the pipe connection part 830 and the second flange receiving part of the connection member 20 233 are brought into contact with each other. At this time, a second seal member 93 may be arranged between the pipe connection part 830 and the second pipe 13.

  In the seventh step ST7, the pipe component side fastening portion 835 of the second piping component 83 and the fastening portion 22 of the connection member 20 are brought into contact with each other. Note that the seventh step ST7 may be executed before the sixth step ST6, may be executed after the sixth step ST6, or may be executed simultaneously with the sixth step ST6.

  In the eighth step ST <b> 8, the piping component side fastening portion 835 of the second piping component 83 and the fastening portion 22 of the connection member 20 are fastened. Fastening between the piping component side fastening portion 835 and the fastening portion 22 may be performed by inserting the fastening member F2 into the hole 835h of the piping component side fastening portion 835 and the hole 22h of the fastening portion 22. .

  As described above, in the embodiment, the connection between the control valve 1 and the piping component can be easily performed without requiring a complicated operation.

  Note that the present invention is not limited to the above embodiment. Further, within the scope of the present invention, it is possible to modify any of the components of the embodiments or omit any of the components in each embodiment.

1: Control valve 2: Valve side unit 3: Drive unit 4: Housing 10: Valve body 11: First piping 13: Second piping 14: Valve seat 15: Partition wall 16: First connection part 20: Connection member 22: Fastening Part 22-1: first end face 22-2: second end face 22a: first fastening part 22b: second fastening part 22c: female screw part 22h: hole part 30: can 30a: lower end part 32: side wall 34: end wall 50 : Guide unit 50c: second screw portion 58: stopper 62: stator member 64: rotor member 70: valve shaft 70a: first end 70b: second end 75: valve body 76: urging member 80: piping component 81 : First piping component 83: Second piping component 91: First sealing member 93: Second sealing member 113: First flange portion 113 a: First receiving surface 133: Second flange portion 133 a: Second receiving surface 21 : First flange receiving portion 213h: hole portion 233: second flange receiving portion 233h: hole portion 620: coil 622: bobbin 640: inner cylinder 640c: first screw portion 641: outer cylinder 643: connecting member 646: positioning member 648 : Valve shaft support portion 810: Piping connection portion 811: First connection pipe 815: Piping component side fastening portion 815h: Hole 830: Piping connection portion 831: Second connection pipe 835: Piping component side fastening portion 835h: Hole F1 : Fastening member F2: Fastening member FP1: First flow path FP2: Second flow path VS: Valve chamber

Claims (7)

A valve body having a valve chamber formed therein;
A connection member fixed to the valve body,
A can fixed to the valve body,
With
The connection member is made of resin,
The connection member includes a fastening portion for connecting a piping component,
The control valve, wherein the connection member has a hole through which the first pipe of the valve body passes, and a hole provided in the fastening portion for receiving the fastening member. The valve body is made of stainless steel,
The control valve according to claim 1, wherein the can is made of stainless steel.   The control valve according to claim 1, wherein the valve body and the can are welded and fixed.   The control valve according to any one of claims 1 to 3, wherein the valve body and the connection member are integrated by insert molding. The valve body has a first pipe having a first flange portion,
The control valve according to any one of claims 1 to 4, wherein the connection member has a first flange receiving portion disposed around the first pipe. A valve body having a valve chamber formed therein;
A connection member fixed to the valve body,
A can fixed to the valve body,
With
The connection member is made of resin,
The connection member includes a fastening portion for connecting a piping component,
The control valve, wherein the number of the fastening portions is one. A rotor member disposed in the can,
The control valve according to claim 1, further comprising a stator member disposed outside the can.

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