JP2019204854A - Solenoid actuator - Google Patents

Abstract

To provide a solenoid actuator in which thrust of a needle is improved without adding a member.SOLUTION: A solenoid actuator comprises stator constituted of a yoke consisting of a magnetic element body having a first side, and a second side having one end fixed to the first side and the other end facing the one end and extending in a direction orthogonal to the first side, and a plate parallel with the first side and consisting of a magnetic element body where a stationary portion is fixed to the second side, when a caulking protrusion is caulked, a coil clamped by the first side and the plate, and a needle constituting a magnetic circuit together with the stator when the coil is electrified, and consisting of a magnetic element body moving directly in a direction orthogonal to the first side when the coil is subjected to electrification control. The yoke has a protrusion different from the caulking protrusion at the other end, the plate has an abutment part different from the stationary portion, and a protrusion of the yoke abuts on the abutment part of the plate.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a solenoid actuator.

A technique for improving the thrust of the solenoid actuator has been studied.
For example, in Patent Document 1, a mounting bracket that forms a magnetic flux delivery member is provided with an arcuate auxiliary delivery portion that is fitted on the outer peripheral surface of the yoke, in addition to a main delivery portion interposed between the yoke and the stator. By actively utilizing the inner peripheral surface of this auxiliary transfer portion and the outer peripheral surface of the yoke as the magnetic flux transfer surface, the magnetic flux is transferred between the yoke and the stator in both the axial direction and the radial direction by the mounting bracket. A solenoid valve to be performed is disclosed.

JP 2012-117585 A

The electromagnetic valve disclosed in Patent Document 1 requires a bracket provided with an auxiliary delivery portion in addition to the main delivery portion interposed between the yoke and the stator in order to improve the thrust of the mover. There was a problem of end.
An object of the present invention is to provide a solenoid actuator that improves the thrust of a mover without adding a member.

  The solenoid actuator according to the present invention includes a magnetic material having a first surface portion, and a second surface portion whose one end portion is fixed to the first surface portion and the other end portion facing the one end portion extends in a direction perpendicular to the first surface portion. And a fixing portion into which a caulking convex portion provided at the other end portion of the second surface portion is inserted, and the fixing portion is fixed to the second surface portion by caulking the caulking convex portion. A stator composed of a magnetic material plate parallel to the first surface portion, a coil sandwiched between the first surface portion and the plate, and a magnetic circuit together with the stator when the coil is energized And a mover made of a magnetic material that linearly moves in a direction orthogonal to the first surface portion by controlling the energization of the coil, and the yoke has a convex portion different from the caulking convex portion at the other end portion. The plate has a different contact with the fixed part Anda contact portion of the convex portion of the yoke and the plate is characterized in that it is in contact.

  According to the present invention, it is possible to provide a solenoid actuator that improves the thrust of the mover without adding a member.

FIG. 1A is an outline view showing an example of a configuration of the solenoid actuator according to Embodiment 1 as viewed from a certain direction. FIG. 1B is an outline view showing an example of the configuration of the solenoid actuator according to Embodiment 1 viewed from the direction of the arrow Y shown in FIG. 1A. FIG. 1C is an outline view showing an example of the configuration of the solenoid actuator according to Embodiment 1 viewed from the direction of arrow X shown in FIG. 1A. 2 is a cross-sectional view showing an example of a configuration in which the solenoid actuator according to Embodiment 1 is cut along a line segment PQ shown in FIG. 1C and the cut surface is seen from the direction of arrow R. FIG. FIG. 3 is an outline view showing an example of the configuration of the plate in the solenoid actuator according to the first embodiment. FIG. 4 shows a component in a direction perpendicular to the first surface portion of the magnetic attraction force acting between the mover and the core, which is the thrust for causing the mover to move linearly, and the size of the area where the yoke and the plate abut. It is a figure which shows an example of the relationship with the magnitude | size of. FIG. 5A is a cross-sectional view showing an example of the configuration of a solenoid actuator according to a modification of the first embodiment. FIG. 5B is a cross-sectional view showing an example of the configuration of the solenoid actuator according to the modification of the first embodiment shown in FIG. 5A in a state where the coil is energized. FIG. 6 is a schematic diagram illustrating an example of a cross section of a portion where the convex portion of the yoke and the abutting portion of the plate abut in the solenoid actuator according to still another modification of the first embodiment. FIG. 7 is an external view showing an example of a configuration in which the solenoid actuator according to the embodiment described so far is applied to a purge solenoid valve. FIG. 8 is a diagram showing an example of the configuration of a conventional solenoid actuator. FIG. 9 is an outline view showing an example of the configuration of a conventional solenoid actuator viewed from the direction of arrow Z shown in FIG.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
Embodiment 1 FIG.

  Before describing the solenoid actuator 1 according to the first embodiment, the configuration of the conventional solenoid actuator 101 will be described.

  FIG. 8 is a diagram illustrating an example of the configuration of a conventional solenoid actuator 101. The plate 103 in the conventional solenoid actuator 101 is fixed to the yoke 102 by caulking a convex part 121 for caulking provided on the yoke 102 inserted in a fixing part 131 provided on the plate 103. The coil 104 is fixed in a state of being sandwiched between the yoke 102 and the plate 103 fixed to the yoke 102.

  FIG. 9 is an outline view showing an example of the configuration of the conventional solenoid actuator 101 viewed from the direction of the arrow Z shown in FIG. The coil 104 is configured such that a gap 110 is formed between the yoke 102 and the plate 103 in order to sandwich the coil 104 between the yoke 102 and the plate 103.

  Hereinafter, the solenoid actuator 1 according to the first embodiment will be described.

  FIG. 1A is an outline view showing an example of a configuration of the solenoid actuator 1 according to Embodiment 1 viewed from a certain direction. FIG. 1B is an outline view showing an example of the configuration of the solenoid actuator 1 according to Embodiment 1 as viewed from the direction of the arrow Y shown in FIG. 1A. FIG. 1C is an outline view showing an example of the configuration of the solenoid actuator 1 according to Embodiment 1 as viewed from the direction of the arrow X shown in FIG. 1A.

  2 is a cross-sectional view showing an example of a configuration in which the solenoid actuator 1 according to Embodiment 1 is cut along the line PQ shown in FIG. 1C and the cut surface is viewed from the direction of the arrow R. FIG.

  FIG. 3 is an outline view showing an example of the configuration of the plate 3 in the solenoid actuator 1 according to the first embodiment.

The configuration of the solenoid actuator 1 according to the first embodiment will be described with reference to FIGS. 1A, 1B, 1C, 2 and 3. FIG.
The solenoid actuator 1 according to Embodiment 1 includes a yoke 2, a plate 3, a coil 4, a core 5, a spring 7, and a mover 6.
The yoke 2 has a first surface portion 28 and a second surface portion 27 having one end portion fixed to the first surface portion 28 and the other end portion facing the one end portion extending in a direction perpendicular to the first surface portion 28. The yoke 2 is made of a magnetic material.
Here, the direction orthogonal to the first surface portion 28 means a direction orthogonal to one surface of the flat plate-like first surface portion 28. In the following description, the term “orthogonal” in the description of the embodiments does not necessarily mean strict orthogonality, and may be substantially orthogonal.

The yoke 2 in the solenoid actuator 1 shown in FIG. 1A, FIG. 1B, FIG. 1C, and FIG. 2 is opened by the first surface portion 28 and the second surface portion 27 at a position apart in the direction orthogonal to the first surface portion 28. However, the shape of the yoke 2 is not limited to this. For example, the second surface portion 27 may have a cylindrical shape in the yoke 2.
Further, the yoke 2 in the solenoid actuator 1 shown in FIGS. 1A, 1B, 1C and 2 has a closed cylindrical shape in the direction in which the second surface portion 27 is parallel to the first surface portion 28. However, the shape of the second surface portion 27 in the yoke 2 is not limited to this. For example, the second surface portion 27 of the yoke 2 may be partially opened in a direction parallel to the first surface portion 28.
Here, the direction parallel to the first surface portion 28 means a direction parallel to one surface of the flat plate-like first surface portion 28. In the following description, “parallel” in the description of the embodiments does not necessarily mean strict parallelism, but may be substantially parallel.

The yoke 2 has a caulking convex portion 21 at the other end portion of the second surface portion 27.
The plate 3 has a fixing portion 31 into which the caulking convex portion 21 of the yoke 2 is inserted. The plate 3 is fixed to the yoke 2 by the caulking convex portion 21 inserted into the fixing portion 31 of the plate 3 being caulked. The plate 3 is disposed in parallel to the first surface portion 28. The plate 3 has a linear motion hole 33 for the movable element 6 to linearly move. The plate 3 is made of a magnetic material.
One end portion of the core 5 is fixed to the first surface portion 28 of the yoke 2, and the other end portion extends in a direction perpendicular to the first surface portion 28, and is arranged side by side on the second surface portion 27 of the yoke 2. The core 5 is made of a magnetic material.
The yoke 2, the plate 3, and the core 5 constitute a stator.

The coil 4 is configured such that a wire made of a conductive material surrounds the core 5 concentrically with the core 5 between the core 5 and the yoke 2. The coil 4 is fixed in a state of being sandwiched between the first surface portion 28 of the yoke 2 and the plate 3 fixed to the yoke 2.
The coil 4 of the solenoid actuator 1 according to the first embodiment is disposed between the second surface portion 27 of the yoke 2 and the core 5.
As shown in FIGS. 1A and 1C, the dimensions of the coil 4 are configured such that a gap 10 is formed between the second surface portion 27 of the yoke 2 and the plate 3 in a direction perpendicular to the first surface portion 28. Since the coil 4 has the gap 10, the caulking convex portion 21 of the second surface portion 27 is caulked in a state where the coil 4 is inserted into the first surface portion 28 and the plate 3 of the yoke 2. The second first surface portion 28 and the plate 3 are fixed in a sandwiched state.

FIG. 1B shows four caulking convex portions 21 of the yoke 2 and four fixing portions 31 of the plate 3 in the solenoid actuator 1 according to Embodiment 1, but this is not restrictive. The caulking convex portion 21 of the second surface portion 27 and the fixing portion 31 of the plate 3 are configured so that the yoke 2 and the plate 3 can be fixed in a state where the coil 4 is sandwiched between the first surface portion 28 and the plate 3. It only has to be.
The mover 6 forms a magnetic circuit together with the stator when the coil 4 is energized. The mover 6 linearly moves in the direction orthogonal to the first surface portion 28 when the coil 4 is energized and controlled. The mover 6 is made of a magnetic material.

One end of the spring 7 is in contact with the core 5 and the other end of the spring 7 is in contact with the movable element 6 in a state shorter than the natural length.
When the coil 4 is energized, a magnetic flux is generated by the current flowing through the coil 4. The generated magnetic flux flows through a magnetic circuit including the core 5, the yoke 2, the plate 3, and the mover 6. When magnetic flux flows through this magnetic circuit, a magnetic attractive force is generated between the mover 6 and the core 5, and the mover 6 moves in a direction in which the core 5 is located. Therefore, the length of the spring 7 is shorter than before the coil 4 is energized, and the force for returning to the natural length is increased. When the coil 4 is not energized, the force of the spring 7 between the mover 6 and the core 5 to return to the natural length causes the mover 6 to be in the position before the coil 4 is energized. Move in the opposite direction.
In this way, the mover 6 linearly moves in the direction orthogonal to the first surface portion 28 by controlling the energization of the coil 4.

  Although the solenoid actuator 1 shown in FIG. 2 has the core 5 and the example which comprised the stator with the yoke 2, the plate 3, and the core 5 is shown, it is not limited to this. For example, the solenoid actuator 1 can be configured such that the core 5 is eliminated and the yoke 2 and the plate 3 constitute a stator. In this case, the solenoid actuator 1 only needs to constitute a magnetic circuit by the yoke 2, the plate 3, and the mover 6 when the coil 4 is energized. In order to form a magnetic circuit by the yoke 2, the plate 3, and the mover 6, for example, the solenoid actuator 1 has a shape in which the mover 6 is extended in a direction toward the first surface portion 28 in a direction orthogonal to the first surface portion 28. May be. Further, for example, the solenoid actuator 1 may have a shape in which a portion of the first surface portion 28 of the yoke 2 to which the core 5 is fixed is extended in a convex shape toward the mover 6.

The description of the solenoid actuator 1 according to Embodiment 1 so far is not significantly different from the conventional solenoid actuator 101 described above with reference to FIG.
The solenoid actuator 1 according to the first embodiment is greatly different from the conventional solenoid actuator 1 in the following points.
The yoke 2 in the solenoid actuator 1 according to Embodiment 1 has a convex portion 22 different from the caulking convex portion 21 at the other end portion of the second surface portion 27.
The plate 3 in the solenoid actuator 1 according to Embodiment 1 has a contact portion 32 different from the fixed portion 31.
Furthermore, the convex part 22 of the yoke 2 and the contact part 32 of the plate 3 are in contact. Here, the contact between the convex portion 22 of the yoke 2 and the contact portion 32 of the plate 3 may be a state in which a part of the contact portion 32 of the plate 3 is in contact. The convex part 22 and the contact part 32 of the plate 3 may face each other at a close distance.

  The convex portion 22 of the yoke 2 is in contact with the abutting portion 32 of the plate 3 on a surface parallel to the direction orthogonal to the first surface portion 28 of the convex portion 22. Further, the abutting portion 32 of the plate 3 abuts on the convex portion 22 of the yoke 2 on a surface parallel to the direction orthogonal to the first surface portion 28 of the plate 3. As a result, the solenoid actuator 1 according to the first embodiment has a contact area between the yoke 2 and the plate 3 as compared with the contact area between the yoke 102 and the plate 103 in the conventional solenoid actuator 101 shown in FIG. The plate 3 and the second surface portion 27 can be fixed while the coil 4 is sandwiched between the first surface portion 28 and the plate 3.

FIG. 4 shows the first surface portion 28 of the magnetic attractive force acting between the mover 6 and the core 5 which is the size of the area where the yoke 2 and the plate 3 abut and the thrust for the mover 6 to move linearly. It is a figure which shows an example of the relationship with the magnitude | size of the component of the direction orthogonal to. FIG. 4 shows that the thrust for moving the mover 6 linearly increases as the area where the yoke 2 and the plate 3 come into contact with each other increases.
Compared with the conventional solenoid actuator 101 shown in FIG. 8, the solenoid actuator 1 according to the first exemplary embodiment has a portion corresponding to the contact between the convex portion 22 of the yoke 2 and the contact portion 32 of the plate 3. The area where 2 and the plate 3 abuts increases. That is, the solenoid actuator 1 according to the first embodiment can improve the thrust of the mover 6 as compared with the conventional solenoid actuator 101 shown in FIG.

As described above, in the solenoid actuator 1 according to the present invention, the first surface portion 28, one end portion is fixed to the first surface portion 28, and the other end portion facing the one end portion extends in a direction orthogonal to the first surface portion 28. The yoke 2 made of a magnetic material having the second surface portion 27, and the fixing portion 31 into which the caulking convex portion 21 provided at the other end of the second surface portion 27 is inserted. The caulking convex portion 21 is The fixed portion 31 is clamped between the first surface portion 28 and the plate 3, and the stator configured by the plate 3 parallel to the first surface portion 28 made of a magnetic material, which is fixed to the second surface portion 27 by caulking. When the coil 4 is energized, it forms a magnetic circuit together with the stator, and the coil 4 is energized and controlled so that the coil 4 is made of a magnetic material that linearly moves in a direction perpendicular to the first surface portion 28. A mover 6 and a yaw 2 has a convex portion 22 different from the caulking convex portion 21 at the other end, and the plate 3 has an abutting portion 32 different from the fixing portion 31, and the convex portion 22 of the yoke 2 and the plate 3 The contact portion 32 is configured to be contacted.
By comprising in this way, the solenoid actuator 1 which improved the thrust of the needle | mover 6 without adding a member can be provided.

  Below, the solenoid actuator 1 which concerns on the modification of Embodiment 1 is demonstrated.

FIG. 5A is a cross-sectional view illustrating an example of the configuration of the solenoid actuator 1 according to a modification of the first embodiment.
A solenoid actuator 1 according to a modification of the first embodiment will be described with reference to FIG. 5A.
Differences between the solenoid actuator 1 according to the first embodiment and the solenoid actuator 1 according to the modification of the first embodiment are as follows.
In the solenoid actuator 1 according to the first embodiment, the plate 3 has a flat plate shape.
On the other hand, the plate 3 in the solenoid actuator 1 according to the modification of the first embodiment is in a direction toward the first surface portion 28 in the direction in which the edge of the linear motion hole 33 in the plate 3 is orthogonal to the first surface portion 28. It has an elongated convex edge 34.

FIG. 5B is a cross-sectional view showing an example of the configuration of the solenoid actuator 1 according to the modification of the first embodiment shown in FIG. 5A in a state where the coil 4 is energized.
As shown in FIG. 5B, the area of the surface of the solenoid actuator 1 according to the modification of the first embodiment when the coil 4 is energized is opposed to the plate 3 and the mover 6 is such that the plate 3 has a convex edge. By having 34, it increases compared to the solenoid actuator 1 according to the first embodiment. That is, the solenoid actuator 1 according to the modification of the first embodiment increases the amount of magnetic flux in the magnetic circuit by increasing the area of the surface where the plate 3 and the mover 6 face each other when the coil 4 is energized. Compared with the solenoid actuator 1 according to the first embodiment, the thrust of the mover 6 can be improved.

  5A and 5B, the plate 3 in the solenoid actuator 1 according to the modification of the first embodiment is such that the convex edge 34 of the plate 3 faces the first surface 28 in the direction perpendicular to the first surface 28. The structure extends in the direction, but is not limited to this. For example, the convex edge portion 34 of the plate 3 may have a structure extending in a direction opposite to the direction toward the first surface portion 28 in the direction orthogonal to the first surface portion 28. Further, for example, the convex edge 34 of the plate 3 is directed to the first surface 28 in the direction orthogonal to the first surface 28 and the direction toward the first surface 28 in the direction orthogonal to the first surface 28. You may have the structure extended toward both directions of the opposite direction. Moreover, even if the plate 3 itself is thickened in the direction orthogonal to the first surface portion 28 without providing the convex edge 34 on the plate 3, the area of the surface where the plate 3 and the movable element 6 face each other can be increased. Good.

  A solenoid actuator 1 according to a different modification of the first embodiment will be described.

Differences between the solenoid actuator 1 according to the first embodiment and the solenoid actuator 1 according to a different modification of the first embodiment are as follows.
The solenoid actuator 1 according to the first embodiment is configured such that the plate 3 has a flat plate shape, and the mover 6 linearly moves the linear motion hole 33 of the plate 3 in a direction orthogonal to the first surface portion 28. .
On the other hand, the plate 3 in the solenoid actuator 1 according to a different modification of the first embodiment is directed toward the first surface portion 28 in the direction in which the edge of the linear motion hole 33 in the plate 3 is orthogonal to the first surface portion 28. And has a convex edge 34 extending to the surface. Further, the solenoid actuator 1 according to a different modification of the first embodiment is directed from the linear movement hole 33 of the plate 3 toward the mover 6 on the surface facing the surface of the mover 6 on which the spring 7 is in contact. One end of a rod-shaped member such as a resin material inserted is fixed, and this rod-shaped member is configured to move in a straight motion hole 33 of the plate 3 in conjunction with the mover 6.
In such a configuration, the linear movement hole 33 of the plate 3 can be reduced by thinning the rod-shaped material as compared with the outer diameter in the plane parallel to the first surface portion 28 of the mover 6. The magnetic resistance can be reduced.

  A solenoid actuator 1 according to still another modification of the first embodiment will be described.

FIG. 6 is a schematic diagram illustrating an example of a cross section of a portion where the convex portion 22 of the yoke 2 and the contact portion 32 of the plate 3 are in contact with each other in the solenoid actuator 1 according to another modification of the first embodiment.
A solenoid actuator 1 according to still another modification of the first embodiment will be described with reference to FIG.

Differences between the solenoid actuator 1 according to the first embodiment and the solenoid actuator 1 according to a further different modification of the first embodiment are as follows.
The solenoid actuator 1 according to Embodiment 1 is configured such that the convex portion 22 of the yoke 2 and the contact portion 32 of the plate 3 are in contact with each other on a surface parallel to the direction perpendicular to the first surface portion 28. It was.
On the other hand, in the solenoid actuator 1 according to still another modification of the first embodiment, the convex portion 22 of the yoke 2 is press-fitted into the contact portion 32 of the plate 3. For this reason, the convex part 22 of the yoke 2 has a shape warped in the direction of the back surface of the surface of the convex part 22 of the yoke 2 that is in contact with the contact part 32 of the plate 3. By pressing the convex portion 22 of the yoke 2 into the abutting portion 32 of the plate 3, the contact pressure between the convex portion 22 of the yoke 2 and the abutting portion 32 of the plate 3 is increased, and the certainty of the abutting is increased. Therefore, it is possible to reduce the magnetic resistance in the magnetic circuit.

  Further, the portion of the contact portion 32 of the plate 3 where the convex portion 22 of the yoke 2 contacts is substantially parallel to the portion of the convex portion 22 of the yoke 2 that contacts the contact portion 32 of the plate 3. Furthermore, it has a shape having a gradient with respect to the direction orthogonal to the first surface portion 28. Since the contact portion 32 of the plate 3 has a gradient, the contact area between the yoke 2 and the plate 3 is increased and the magnetic resistance in the magnetic circuit is reduced as compared with the solenoid actuator 1 according to the first embodiment. It becomes possible.

  The solenoid actuator 1 according to the embodiment described so far is used as a vehicle-mounted solenoid actuator. The solenoid actuator 1 can be applied to a pneumatic actuator control solenoid valve such as a purge solenoid valve, a waste gate valve, and an air bypass valve.

FIG. 7 is an external view showing an example of a configuration in which the solenoid actuator 1 according to the embodiment described so far is applied to the purge solenoid valve 70.
In the purge solenoid valve 70, the plate 3 of the solenoid actuator 1 and the valve storage portion 71 are fixed. The solenoid actuator 1 is fixed at a use location in the vehicle by fixing the fixing flange 79 with a bolt or the like. The solenoid actuator 1 linearly moves the mover 6 when the coil 4 is energized and controlled via the coil connection portion 78. The purge solenoid valve 70 controls the flow of fluid flowing from the intake pipe 72 to the exhaust pipe 73 by opening and closing the valve in the valve storage portion 71 in conjunction with the direct movement of the mover 6 of the solenoid actuator 1. .

In the solenoid actuator 1 according to the embodiment described so far, the contact portion 32 of the plate 3 is configured by a hole that penetrates the plate 3 in a direction orthogonal to the first surface portion 28, but this is not restrictive. The abutting portion 32 of the plate 3 may be any surface as long as the surface parallel to the direction orthogonal to the first surface portion 28 of the convex portion 22 of the yoke 2 abuts. For example, the contact portion 32 of the plate 3 may be provided on an end surface parallel to a direction orthogonal to the first surface portion 28 in the plate 3. Further, for example, the contact portion 32 of the plate 3 may be a recess provided on an end surface parallel to the direction orthogonal to the first surface portion 28 of the plate 3.
In the solenoid actuator 1 according to the embodiment described so far, four contact portions 32 of the plate 3 and four convex portions 22 of the yoke 2 are shown, but this is not restrictive. The number, position, shape, and the like of the contact portion 32 of the plate 3 and the convex portion 22 of the yoke 2 can be appropriately designed.

  In the solenoid actuator 1 according to the embodiment described so far, the fixing portion 31 of the plate 3 is configured by the hole that penetrates the plate 3 in the direction orthogonal to the first surface portion 28. . The fixing portion 31 of the plate 3 is a direction in which the caulking convex portion 21 of the yoke 2 is caulked so that the caulking convex portion 21 of the yoke 2 faces the first surface portion 28 in the direction perpendicular to the first surface portion 28. Any shape can be used as long as the shape can be fixed to. For example, the fixing portion 31 of the plate 3 may be provided on an end surface parallel to the direction orthogonal to the first surface portion 28 in the plate 3. Further, for example, the fixing portion 31 of the plate 3 may be a recess provided on an end surface parallel to a direction orthogonal to the first surface portion 28 in the plate 3.

  It should be noted that within the scope of the invention, the present invention can be freely combined with each of the embodiments, modified with any component in each embodiment, or omitted with any component in each embodiment.

1 solenoid actuator, 2 yoke, 3 plate, 4 coil, 5 core, 6 mover, 7 spring, 10 gap, 21 convex portion for caulking, 22 convex portion, 27 second surface portion, 28 first surface portion, 31 fixing portion, 32 Abutting part, 33 Linear motion hole part, 34 Convex edge part, 70 Purge solenoid valve, 71 Valve storage part, 72 Intake pipe, 73 Exhaust pipe, 78 Coil connection part, 79 Fixing flange, 101 Solenoid actuator, 102 Yoke, 103 plate, 104 coil, 110 gap, 121 caulking convex part, 131 fixing part.

Claims (5)

A yoke made of a magnetic material having a first surface portion and a second surface portion having one end portion fixed to the first surface portion and the other end portion facing the one end portion extending in a direction perpendicular to the first surface portion;
Having a fixing portion into which a caulking convex portion provided at the other end portion of the second surface portion is inserted, and the caulking convex portion being caulked to fix the fixing portion to the second surface portion, A plate made of a magnetic material and parallel to the first surface portion;
A stator constituted by
A coil sandwiched between the first surface portion and the plate;
When the coil is energized, it forms a magnetic circuit together with the stator, and the coil is controlled to be energized so that a mover made of a magnetic material that linearly moves in a direction perpendicular to the first surface portion is provided. Prepared,
The yoke has a convex portion different from the caulking convex portion at the other end portion,
The plate has a contact portion different from the fixed portion,
The solenoid actuator, wherein the convex part of the yoke is in contact with the contact part of the plate. 2. The solenoid actuator according to claim 1, wherein the mover linearly moves a linear motion hole provided in the plate in a direction orthogonal to the first surface portion. The solenoid actuator according to claim 1, wherein the convex portion of the yoke is press-fitted into the contact portion of the plate. The portion of the abutting portion of the plate with which the convex portion of the yoke abuts has a shape having a gradient with respect to a direction orthogonal to the first surface portion. Solenoid actuator. The solenoid actuator according to any one of claims 1 to 4, wherein the solenoid actuator is used as an on-vehicle solenoid actuator.

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