CN213451989U - Electromagnetic valve - Google Patents

Abstract

The utility model discloses a solenoid valve (10) has: a solenoid part (20) which houses a bobbin (40) around which a coil (38) is wound; and a connector section (24) having connection terminals (102a, 102b) electrically connected to the coil (38) and connected to the solenoid section (20). Second insertion holes (104a, 104b) capable of receiving connection terminals (102a, 102b) connected to a lead wire (100) are formed in a connection portion (92) of the connector portion (24), and first insertion holes (98a, 98b) into which a pair of connection pins (54a, 54b) connected to a coil (38) in a solenoid portion (20) are inserted are formed in a connector main body (90). When the connector section (24) is connected to the other end of the solenoid section (20) in the axial direction, a pair of connection terminals (102a, 102b) housed in the second insertion holes (104a, 104b) are electrically connected to a pair of connection pins (54a, 54b) inserted into the first insertion holes (98a, 98 b).

Description

Electromagnetic valve

Technical Field

The utility model relates to a make solenoid valve of case displacement in the axial under solenoid portion's excitation.

Background

As disclosed in japanese patent laid-open No. 2003-056738, the present applicant has proposed a solenoid valve that controls the state of flow of a pressure fluid to a fluid pressure device driven by the supply of the pressure fluid.

The solenoid valve includes a valve portion, a solenoid portion that drives the valve portion, and an energizing terminal that supplies power to a coil of the solenoid portion, and a box-shaped substrate assembly in which a substrate is housed is coupled to a side portion of a magnetic cover that covers the solenoid portion.

The energizing terminal is inserted into a terminal insertion hole formed in a valve body constituting the valve portion, a contact terminal connected to an end of the energizing terminal protrudes toward the substrate assembly through an opening and is connected to a substrate, and the substrate is electrically connected to an energizing pin protruding to the outside of the substrate assembly.

Then, a connector or the like having a lead wire connected to the outside of the solenoid valve is connected to the energization pin, and electric power is supplied from the substrate to the solenoid portion through the lead wire, and the valve portion is driven by the excitation action of the coil.

SUMMERY OF THE UTILITY MODEL

A general object of the present invention is to provide an electromagnetic valve capable of easily connecting a lead wire to a solenoid portion to improve assembling performance by simplifying a structure.

The utility model discloses a scheme is a solenoid valve, possesses: a valve body having ports for supplying and discharging a pressure fluid; a valve element which is provided inside the valve body so as to be displaceable and which switches a communication state of the port; and a drive unit coupled to the valve body, the drive unit exciting the coil by a supply of electric power to displace the valve body in the axial direction, the valve body being coupled to one axial end side of the drive unit,

the driving part is provided with a first connecting member which is electrically connected to the coil, is provided on one side along the connecting direction of the valve body and the driving part, and is made of a conductive material,

a connector member having a second connecting member made of a conductive material and connected to a power supply unit capable of supplying power via a lead is provided at the other end in the axial direction of the driving portion,

the first connection member and the second connection member are electrically connected by coupling the connector member and the driving portion.

According to the present invention, in a solenoid valve having a driving portion that displaces a valve body in an axial direction by exciting a coil by a supply action of electric power, the driving portion includes a first connecting member that is electrically connected to the coil and provided on one side in a direction in which the valve body and the driving portion are connected to each other, and a connector member having a second connecting member that is connected to an electric power supply unit that can supply electric power via a lead wire is provided on the other axial end of the driving portion that is on the opposite side from the one axial end to which the valve body is connected. The first connection member and the second connection member are electrically connected by coupling the connector member and the driving portion.

Therefore, the coil and the lead wire can be electrically connected easily via the first connection member and the second connection member by a simple assembly operation of connecting the connector member to which the lead wire is connected and the other end of the driving portion in the axial direction. Therefore, compared to a conventional solenoid valve, the structure can be simplified, and the coil in the driving unit and the lead wire of the connector unit can be easily connected, so that the ease of assembly of the solenoid valve can be improved.

The above objects, features and advantages will become more apparent from the following description of the preferred embodiments with reference to the accompanying drawings.

Drawings

Fig. 1 is an external perspective view of a solenoid valve according to an embodiment of the present invention.

Fig. 2 is an exploded perspective view showing a state in which a connector portion is exploded with respect to the solenoid valve of fig. 1.

Fig. 3 is an overall sectional view of the solenoid valve of fig. 1.

Fig. 4 is an enlarged sectional view showing the vicinity of the connector portion in the solenoid valve of fig. 3.

Fig. 5 is an exploded cross-sectional view showing a state in which the connector portion is exploded with respect to the solenoid valve of fig. 4.

Detailed Description

As shown in fig. 1 to 3, the solenoid valve 10 is a three-port valve having first to third ports 12, 14, 16 for supplying and discharging a pressure fluid, and the solenoid valve 10 includes: a valve body 18 having the first to third ports 12, 14, 16; a solenoid portion (drive portion) 20 coupled to an axial end portion of the valve body 18; a valve mechanism 22 that switches communication states between the first to third ports 12, 14, 16 to each other by excitation of the solenoid portion 20; and a connector portion (connector member) 24 that is connected to an axial end portion of the solenoid portion 20, and that is formed long in the axial direction (the direction of arrow A, B) of the solenoid valve 10.

The valve body 18 is formed of, for example, a metal material, is provided on one axial end side (in the direction of arrow a) of the solenoid valve 10, and is formed in a cylindrical shape having both axial ends open and having a valve hole 26 therein. An end plate 28 and a cover 30 are attached to one axial end of the opening of the valve body 18 so as to close the valve hole 26. The cover 30 is provided at the center on the axis of the valve hole 26, and the end plate 28 is formed in a ring shape and provided on the outer peripheral side of the cover 30.

The valve element 18 has first to third ports 12, 14, and 16 opened in a side surface orthogonal to the axial direction (direction of arrow A, B), and the first to third ports 12, 14, and 16 are formed so as to be spaced apart from each other by a predetermined distance in the axial direction: the first port 12 is on one axial end side (arrow a direction) of the valve element 18, the second port 14 is on the other axial end side (arrow B direction) of the first port 12, and the third port 16 is on the other axial end side (arrow B direction) of the second port 14.

The first to third ports 12, 14, 16 extend inward so as to be orthogonal to the axial direction of the valve body 18, and communicate with the valve hole 26.

The first and third ports 12 and 16 are connected via a pipe (not shown) so as to be switchable between a connection state with a pressure fluid supply source (not shown) and an external connection state, and supply a pressure fluid such as a liquid and discharge the pressure fluid remaining in the valve hole 26 to the outside. On the other hand, the second port 14 is connected to a fluid pressure device (not shown) that supplies the pressure fluid via a pipe (not shown), and the pressure fluid supplied to the first port 12 or the third port 16 is output to the fluid pressure device.

Further, a housing hole 32 having a larger diameter than the valve hole 26 is formed on the other axial end side (arrow B direction) of the valve body 18, and a part of a movable core 44 of the solenoid portion 20 described later is housed therein. The valve body 18 is coupled to the solenoid portion 20 via a seal member 34 provided at the other end in the axial direction thereof.

The solenoid portion 20 includes, for example: a case 36 having a rectangular cross section and formed in a cylindrical shape; a bobbin 40 provided inside the case 36 and around which the coil 38 is wound; a fixed core 42 fixed to the other end of the bobbin 40; and a movable core 44 movably provided inside the bobbin 40.

The housing 36 is open at an upper side (in the direction of arrow C1 in fig. 1 and 2) and a lower side (in the direction of arrow C2 in fig. 1 and 2) orthogonal to the axial direction thereof, and has one axial end and the other axial end that are connected to the other axial end of the valve element 18.

The bobbin 40 has: a shaft portion 48 that is housed in the center of the case 36 so as to extend in the axial direction and that has a bobbin hole 46 therein; and a pair of first and second flange portions 50, 52 that are radially outwardly expanded at one axial end and the other axial end of the shaft portion 48, and between the first flange portion 50 and the second flange portion 52, the coil 38 is wound in the circumferential direction and held on the outer circumferential side of the shaft portion 48.

Further, a first flange portion 50 is provided at one axial end of the bobbin 40 facing the valve body 18, and a second flange portion 52 is provided at the other axial end of the bobbin 40 facing the connector portion 24.

As shown in fig. 4 and 5, one end 38a and the other end 38B of the coil 38 wound around the shaft portion 48 are inserted into the second flange portion 52 on the connector portion 24 side (in the direction of arrow B), and are electrically connected to a pair of connection pins (first connection members) 54a and 54B held by the second flange portion 52, respectively.

The connection pins 54a and 54B are formed of a metal material into a needle shape, extend in the axial direction (the direction of arrow A, B) of the solenoid portion 20, are connected to one end 38a and the other end 38B of the coil 38 at one axial end thereof, and are held by the second flange portion 52, and the other axial end sides of the connection pins 54a and 54B protrude from the other axial end of the housing 36 toward the connector portion 24 (the direction of arrow B) by a predetermined length (see fig. 5). As shown in fig. 2, one connection pin 54a connected to the one end 38a of the coil 38 and the other connection pin 54b connected to the other end 38b of the coil 38 are disposed substantially in parallel with each other at a predetermined interval in the width direction orthogonal to the axial direction of the housing 36.

A pair of projections 56a and 56b are formed on the second flange portion 52 of the bobbin 40 so as to face upward (the direction of arrow C1) and downward (the direction of arrow C2) of the open case 36, and the projections 56a and 56b are formed so that the projecting amounts thereof gradually increase from the connector portion 24 side toward one end side in the axial direction (the direction of arrow a), and are provided at the center in the width direction of the second flange portion 52.

In the solenoid portion 20, as shown in fig. 3, a yoke 58 formed in a cylindrical shape from a metallic material is provided on the bobbin 40 so as to face the first flange portion 50, and the yoke 58 is sandwiched between the valve body 18 and the bobbin 40.

The fixed core 42 is formed of a metallic shaft body having a predetermined length in the axial direction, is inserted into the bobbin hole 46 of the bobbin 40, and the other end in the axial direction of the fixed core 42 is held by the second flange 52 and is covered on the other end side in the axial direction (in the direction of arrow B) by the cover member 60.

The movable core 44 is a shaft body made of a magnetic material having a predetermined length in the axial direction, is provided inside the bobbin hole 46 so as to face one end of the fixed core 42 in the axial direction, and is housed in the housing hole 32 of the valve element 18 at one end side (in the direction of arrow a) in the axial direction, and a part of the movable core 44 is disposed so as to face the inner peripheral surface of the yoke 58.

Further, a first spring 64 is interposed between an annular support portion 62 protruding from the outer peripheral surface of the movable core 44 and an end surface of the yoke 58 at one end side in the axial direction of the movable core 44 in the housing hole 32, and the first spring 64 is constituted by, for example, a coil spring and biases the movable core 44 in a direction of separating from the fixed core 42, that is, toward the valve body 18 (in the direction of arrow a).

The valve mechanism 22 includes a valve body 66 housed in the valve hole 26 of the valve body 18, and a second spring 68 that biases the valve body 66 toward the solenoid portion 20 side (arrow B direction).

The valve body 66 is formed of, for example, a metal material, has a predetermined length in the axial direction, and includes: a valve portion 70 formed substantially at the center in the axial direction; a first support portion 72 formed on one end side in the axial direction (the direction of arrow a); and a second support portion 74 formed on the other end side in the axial direction (in the direction of arrow B), and having a through hole 76 penetrating in the axial direction (in the direction of arrow A, B) formed at the axial center of the valve body 66.

The valve portion 70 and the first and second support portions 72 and 74 are formed with substantially the same diameter, and the first and second support portions 72 and 74 are supported so as to be movable in the axial direction by being in sliding contact with the inner circumferential surface of the valve hole 26 via a bush 78 of an annular groove provided on the outer circumferential surface. Further, the first support portion 72 is provided with an O-ring 80 via an annular groove so as to be adjacent to the bushing 78.

The valve portion 70 is disposed so as to face the second port 14, and any one of a pair of seal rings 82 provided at both ends in the axial direction of the valve portion 70 selectively abuts against the inner circumferential surface of the valve hole 26.

Further, an annular first communication recess portion 84 recessed radially inward with respect to the outer peripheral surface of the valve body 66 is formed between the first support portion 72 and the valve portion 70, and an annular second communication recess portion 86 recessed radially inward with respect to the outer peripheral surface of the valve body 66 is formed between the second support portion 74 and the valve portion 70. That is, the first and second communication concave portions 84 and 86 are formed so as to be aligned in the axial direction (the direction of the arrow A, B) with the valve portion 70 interposed therebetween. Also, the first communication recess 84 is disposed to face the first port 12, and the second communication recess 86 is disposed to face the third port 16.

A spring hole 88 having a diameter larger than that of the through hole 76 is formed at one end of the valve body 66 in the axial direction, and a part of the second spring 68 interposed between the valve body 66 and the cap 30 is housed in the spring hole 88, whereby the elastic force of the second spring 68 biases the valve body 66 in a direction of separating the valve body 66 from the cap 30, that is, toward the solenoid portion 20 (in the direction of arrow B).

As shown in fig. 1 to 5, the connector portion 24 is formed of, for example, a resin material in an L-shaped cross section, and is connected to the valve body 18 and the solenoid portion 20 in a straight line along the axial direction (the direction of an arrow A, B), the connector portion 24 includes a connector main body 90 and a connecting portion 92, the connector main body 90 is connected to the other end portion of the solenoid portion 20 in the axial direction, and the connecting portion 92 projects so as to be substantially orthogonal to the upper end of the connector main body 90. The connector portion 24 is formed to have a width substantially equal to the width of the valve body 18 and the solenoid portion 20.

The connector body 90 is formed in a substantially rectangular shape in cross section corresponding to the other end in the axial direction of the housing 36, and a pair of flanges 94a, 94b projecting toward the solenoid portion 20 side (in the direction of arrow a) are formed at the widthwise centers of the upper end and the lower end of the connector body 90 that can close the other end in the axial direction of the opening, respectively.

First engagement holes 96a and 96b penetrating in the vertical direction (the direction of arrows C1 and C2) are formed at the widthwise centers of the flanges 94a and 94b, respectively, and when the connector portion 24 is connected to the other end in the axial direction of the solenoid portion 20, the pair of protrusions 56a and 56b are inserted into the first engagement holes 96a and 96b from the inside with respect to the first engagement holes 96a and 96b, respectively, and are engaged with each other toward the outside.

Thus, the pair of flanges 94a, 94b are engaged with the protrusions 56a, 56b of the bobbin 40 constituting the solenoid portion 20, and are integrally coupled to each other at the other end in the axial direction of the solenoid portion 20 in a state where relative movement in the axial direction (the direction of the arrow A, B) is restricted.

In other words, the pair of flanges 94a, 94b are formed in advance so as to protrude by a predetermined length toward the solenoid portion 20 side (arrow a direction) when the connector portion 24 is coupled to the solenoid portion 20.

In the connector body 90, a pair of first insertion holes 98a, 98b into which the connection pins 54a, 54b and a holding portion holding the connection pins 54a, 54b are inserted are formed in the axial direction (the direction of arrow A, B) in the vicinity of the upper end where the connection portion 92 is provided. The first insertion holes 98a and 98b are formed at predetermined intervals in the width direction corresponding to the intervals in the width direction between the one connection pin 54a and the other connection pin 54 b.

The connecting portion 92 extends by a predetermined length in a direction away from the connector body 90, that is, in a direction away from the solenoid portion 20 (in the direction of arrow B) with the same width as the connector body 90, and a pair of second insertion holes 104a and 104B into which the lead wire 100 and connection terminals (second connection members) 102a and 102B connected to the lead wire 100 are inserted are formed in the connecting portion 92. The second insertion holes 104a, 104b extend in the axial direction (the direction of the arrow A, B) of the connecting portion 92 in a rectangular shape in cross section, for example, and are formed in a straight line shape to communicate with the first insertion holes 98a, 98 b.

Second engagement holes 106 (see fig. 4 and 5) that open downward (in the direction of arrow C2) are formed in the second insertion holes 104a and 104b, respectively, and a part of the connection terminals 102a and 102b, which will be described later, is engaged therewith.

The connection terminals 102a and 102b are formed by bending a plate made of, for example, a metal material into a U-shaped cross section, one end portions of the connection terminals 102a and 102b are electrically connected to a lead 100, the lead 100 is connected to a power supply source and a controller (not shown), and the connection terminals 102a and 102b have a projection 108 projecting downward (in the direction of arrow C2) at substantially the center in the longitudinal direction. The lower end of the projection 108 is tapered so that the projection height gradually increases, the projection height projecting downward (in the direction of arrow C2) from the other end of the connection terminals 102a and 102B toward the one end (in the direction of arrow B).

The connection terminals 102a, 102b are inserted into the second insertion holes 104a, 104b of the connector body 90 from the other end side (in the direction of arrow a), respectively, and the distal ends of the connection pins 54a, 54b inserted through the first insertion holes 98a, 98b are inserted into the other end inside of the second insertion holes 104a, 104b and held in contact with each other, so that the connection terminals 102a, 102b and the connection pins 54a, 54b are electrically connected to each other in the connector portion 24.

The convex portions 108 of the connection terminals 102a and 102b are inserted into and engaged with the second engagement holes 106, and the connection terminals 102a and 102b are integrally held while movement in the longitudinal direction (the direction of arrow A, B) with respect to the second insertion holes 104a and 104b is restricted.

The solenoid valve 10 according to the embodiment of the present invention is basically configured as described above, and next, a case where the connector portion 24 is assembled to the solenoid portion 20 will be described. The valve body 18 and the solenoid portion 20 constituting the solenoid valve 10 are assembled in advance.

First, as shown in fig. 5, a pair of connection terminals 102a and 102b to which a lead wire 100 having a desired length is connected are inserted into second insertion holes 104a and 104b of a connection portion 92 of a connector portion 24 from the other end side (in the direction of arrow a) and moved toward a connector main body 90 side (in the direction of arrow a), and a projection 108 formed at a lower portion is engaged with a second engagement hole 106 to be positioned at a predetermined position and fixed to the connector portion 24 in a state in which movement in the longitudinal direction (in the direction of arrow A, B) is restricted.

At this time, as shown in fig. 5, the connection terminals 102a and 102b are completely accommodated in the second insertion holes 104a and 104b, and the lead 100 is exposed to extend outward from the other end in the axial direction of the connection portion 92.

Next, the connector portion 24 to which the lead wire 100 including the connection terminals 102a, 102b is connected is disposed so that the connector main body 90 faces the other end in the axial direction of the solenoid portion 20, and is brought closer to the past so as to cover the other end in the axial direction of the housing 36.

Then, as shown in fig. 3 and 4, the pair of connection pins 54a and 54b are inserted into the first insertion holes 98a and 98b of the connector section 24, respectively, and inserted into the other end portions of the connection terminals 102a and 102b, respectively, so as to be held in contact with the other end portions. Thereby, the connection pin 54a is electrically connected to the connection terminal 102a, and the connection pin 54b is electrically connected to the connection terminal 102 b.

The flanges 94a and 94b of the connector portion 24 cover the second flange portion 52 of the bobbin 40, and the protrusions 56a and 56b engage with the first engagement holes 96a and 96b, respectively, so that the connector portion 24 is coupled to the other end of the solenoid portion 20 in the axial direction in a state where the other end of the housing 36 in the axial direction is closed.

This causes the following states: the connector portion 24 is coupled to the other end of the solenoid portion 20 in the axial direction, and the pair of connection pins 54a and 54b in the solenoid portion 20 are electrically connected to the pair of connection terminals 102a and 102b in the connector portion 24, whereby the assembly of the connector portion 24 into the solenoid portion 20 is completed. The connection direction of the connection terminals 102a and 102b including the lead 100 is along the axial direction (the direction of arrow A, B) so as to be the same as the connection direction of the valve element 18, the solenoid portion 20, and the connector portion 24.

As described above, in the solenoid valve 10, the pair of connection pins 54a and 54b electrically connected to the coil 38 is provided at the other axial end of the solenoid portion 20 having the coil 38, and the connector portion 24 having the pair of connection terminals 102a and 102b connected to an unillustrated power supply source or the like via the lead 100 is connected to the other axial end of the solenoid portion 20. Thereby, the connection pins 54a and 54b are inserted into the second insertion holes 104a and 104b in which the connection terminals 102a and 102b are housed, and are held in an electrically connected state.

Therefore, with the above-described simple configuration, the coil 38 of the solenoid portion 20 can be electrically connected to the lead wire 100 by a simple assembly operation of connecting the connector portion 24 to which the lead wire 100 is connected to the other end of the solenoid portion 20 in the axial direction.

As a result, compared to a conventional solenoid valve in which a substrate assembly housing a substrate is coupled to a side portion of a solenoid portion, a contact terminal connected to an energizing terminal is projected toward the substrate assembly through an opening and connected to the substrate, and an energizing pin projected to the outside of the substrate assembly is connected to the substrate, the structure is simplified, and the lead wire 100 and the coil 38 can be easily connected by coupling the connector portion 24 and the solenoid portion 20, so that the assembling property can be improved.

Further, by unitizing the valve element 18 and the solenoid portion 20 in the solenoid valve 10, for example, by preparing the connector portion 24 having the lead wire 100 of a length corresponding to the installation environment of the solenoid valve 10, it is not necessary to previously set the solenoid valves 10 having a plurality of lead wires 100 of different lengths, it is possible to reduce product variations, and it is possible to quickly and easily prepare the solenoid valve 10 having the lead wire 100 of a desired length.

Next, the operation of the solenoid valve 10 in which the connector portion 24 and the solenoid portion 20 are connected as described above will be described. A state in which lead wire 100 connected to connector portion 24 is connected to a controller not shown in advance will be described.

First, the first switching state shown in fig. 3 shows a non-excited state in which the coil 38 is not energized, the movable core 44 is displaced toward the valve element 18 (in the direction of arrow a) by the elastic force of the first spring 64, and further, one end of the valve element 66 in the axial direction abuts against the cap 30, and the second port 14 and the third port 16 are in a state of communication.

In the first switching state, the pressure fluid supplied from the pressure fluid supply source, not shown, to the third port 16 flows through the second communication recess 86 into the valve hole 26 toward the second port 14, and is supplied to the fluid pressure device, not shown, through the second port 14.

Next, when the solenoid valve 10 in the first switching state is switched to the second switching state in which the first port 12 and the second port 14 communicate with each other, a control signal from a controller, not shown, is supplied from the lead wire 100 to the coil 38 of the solenoid portion 20 through the connection terminals 102a and 102b and the connection pins 54a and 54 b. The coil 38 is excited by the energization, and the movable core 44 is attracted toward the fixed core 42 (in the direction of arrow B) by the excitation, and the movable core 44 moves toward the fixed core 42 (in the direction of arrow B) against the elastic force of the first spring 64.

Then, the valve element 66 moves in a direction away from the cap 30 by the elastic force of the second spring 68 in accordance with the movement of the movable core 44, and the movable core 44 abuts against one axial end of the fixed core 42, whereby the movement of the valve element 66 in the axial direction is stopped. Thereby, the valve portion 70 in the valve body 66 is brought into the second switching state: the seal ring 82 on the other axial end side of the valve portion 70 abuts on a valve seat 110 formed at the opening portion of the second port 14, and the communication between the second port 14 and the third port 16 is blocked, and at the same time, the first port 12 and the second port 14 are already communicated via the first communication recess 84.

In the second switching state, the pressure fluid supplied from the pressure fluid supply source, not shown, to the first port 12 flows through the first communication recess 84 into the valve hole 26 toward the second port 14, and is supplied to the fluid pressure device, not shown, through the second port 14. The pressure fluid remaining in the valve hole 26 is discharged to the outside through the third port 16.

The solenoid valve according to the present invention is not limited to the above-described embodiment, and various configurations can be adopted without departing from the spirit of the present invention.

Claims (4)

1. A solenoid valve is provided with: a valve body (18) having ports (12, 14, 16) for supplying and discharging a pressure fluid; a valve body (66) which is provided inside the valve body so as to be displaceable and which switches the communication state of the ports; and a drive unit (20) that is connected to the valve body and that displaces the valve body in the axial direction by exciting a coil (38) by the supply of electric power, the valve body being connected to one axial end side of the drive unit,

the drive unit is provided with first connection members (54a, 54b) which are electrically connected to the coil, are provided on one side in the direction of connection between the valve body and the drive unit, and are made of a conductive material,

a connector member (24) having second connection members (102a, 102b) made of a conductive material and connected to a power supply unit capable of supplying power via a lead wire (100) is provided at the other end in the axial direction of the drive unit,

the first connection member and the second connection member are electrically connected by coupling the connector member and the driving portion.

2. The solenoid valve of claim 1,

the first connecting member is configured to: the other end of the driving portion in the axial direction protrudes toward the connector member side, and overlaps and contacts the second connection member in the axial direction.

3. The solenoid valve according to claim 1 or 2,

the second connection member has a U-shaped cross-section at one axial end thereof on the first connection member side, and the first connection member is inserted into and held between the second connection member and the first connection member.

4. The solenoid valve of claim 1,

the coupling direction of the valve body, the driving portion, and the connector member is formed in a straight line, and the coupling direction of the second coupling member to the connector member is also the same direction as the coupling direction.

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