JP2020092494A - Actuator - Google Patents

Abstract

To provide an actuator which can suppress the occurrence of a chatter sound from a substrate.SOLUTION: In an actuator substrate 2, a first support 21, having a first corner part 160 of a first case member 16 overlapped with a second corner part 600 of a holder 60 in a first direction Z, includes: a first non-contact area 211 in which the first corner part 160 and the second corner part 600 are mutually apart in the first direction Z; and a first contact area 212 in which the first corner part 160 contacts to the second corner part 600 in the first direction Z. This causes a limited contact area between the first corner part 160 and the second corner part 600. Therefore, by the first contact area 212, the first corner part 160 and the second corner part 600 can be made to mutually contact in a stable state. The first contact area 212 is provided in a manner to surround the first non-contact area 211, and a first adhesive is provided in the first non-contact area 211. Therefore, if a vibration is transmitted to the first support 21, a chatter sound is hard to occur.SELECTED DRAWING: Figure 9

Description

The present invention relates to an actuator that vibrates a movable body.

An actuator having a support, a movable body, a support and a connecting body connected to the movable body, and a magnetic drive circuit for moving the movable body relative to the support is proposed as a device for reporting information by vibration. The magnetic drive circuit drives the movable body in a second direction that intersects the first direction by, for example, a coil and a magnet that face each other in the first direction (see Patent Document 1). In the actuator described in Patent Document 1, in the support, the first case member, the holder, and the second case member are arranged so as to overlap in the first direction.

JP, 2017-135948, A

In the actuator described in Patent Document 1, the corner portions of the first case member, the holder, and the second case member overlap with each other to form a support portion. However, if a gap occurs at the corners of the first case member, the holder, and the second case member due to dimensional tolerances when manufacturing the first case member, the holder, and the second case member, the movable body is driven. There is a problem that the corners collide with each other due to the vibration at the time of being struck and a chatter noise is generated.

In view of the above problems, an object of the present invention is to provide an actuator that can suppress the generation of chattering noise from a support.

In order to solve the above problems, an actuator according to the present invention has a support, a movable body, and at least one of elasticity and viscoelasticity, and a connection body connected to the movable body and the support, and the support. A magnetic drive circuit that moves the movable body relative to the body, the support body includes a holder that holds one of a coil and a magnet of the magnetic drive circuit, and one of the holder in the first direction. A first case member that overlaps on the side, and a first corner portion near the corner of the first case member and a second corner portion near the corner of the holder overlap in the first direction to provide first support. A first non-contact region where the first corner and the second corner are separated from each other in the first direction, and a position adjacent to the first non-contact region in the first support part. And a first contact region in which the first corner and the second corner are in contact with each other in the first direction.

In the present invention, in the first support portion where the first corner portion of the first case member and the second corner portion of the holder overlap in the first direction, the first corner portion and the second corner portion are separated from each other in the first direction. Since the first non-contact area and the first contact area where the first corner and the second corner contact in the first direction are provided, the area where the first corner and the second corner contact each other Are limited. Therefore, the first corner and the second corner can be brought into contact with each other in a stable state. Therefore, even if vibration or the like when the movable body is driven is transmitted to the first support portion, chatter noise is unlikely to be generated from the first support portion.

In the present invention, it is possible to adopt a mode in which the first contact region is provided so as to surround the first non-contact region. According to this aspect, the first corner portion and the second corner portion can be brought into contact with each other in a stable state. Therefore, even if vibration or the like when the movable body is driven is transmitted to the first support portion, the first support portion Chatter is less likely to be generated from the part.

In the present invention, a mode in which an adhesive is provided in the first non-contact area can be adopted. According to this aspect, since the first corner portion and the second corner portion support each other in a stable state, even if vibration or the like when the movable body is driven is transmitted to the first support portion, Chatter is less likely to be generated from the support part.

In the present invention, it is possible to employ a mode in which the outer edge portion of the first corner portion and the outer edge portion of the second corner portion face each other with a first gap on the end surface of the support. According to this aspect, even if vibration or the like when the movable body is driven is transmitted to the first support portion, chatter noise is unlikely to be generated from the end surface of the support body.

In the present invention, one of the outer edge portion of the first corner portion and the outer edge portion of the second corner portion has a first bent portion that bends the first gap into an L shape. be able to. According to this aspect, it is possible to suppress the entry of foreign matter from the first gap.

In the present invention, the support includes a second case member that overlaps the holder on the other side in the first direction, and the second corner portion and the third corner portion near the corner of the second case member are different from each other. A second non-contact region in which the second corner portion and the third corner portion are separated from each other in the first direction by forming a second support portion by overlapping in the first direction. And a second contact region in which the second corner portion and the third corner portion are in contact with each other in the first direction at a position adjacent to the second non-contact region can be employed. .. According to this aspect, in the second support portion where the third corner portion of the second case member and the second corner portion of the holder overlap in the first direction, the second corner portion and the third corner portion have the first direction. Since the second non-contact area spaced apart by and the second contact area where the second corner portion and the third corner portion contact in the first direction are provided, the second corner portion and the third corner portion are in contact with each other. The area to do is limited. Therefore, the second corner and the third corner can be brought into contact with each other in a stable state. Therefore, even if vibration or the like when the movable body is driven is transmitted to the second support portion, chatter noise is unlikely to be generated from the second support portion.

In the present invention, it is possible to adopt a mode in which the second contact region is provided so as to surround the second non-contact region. According to this aspect, the second corner portion and the third corner portion can be brought into contact with each other in a stable state. Therefore, even if vibration or the like when the movable body is driven is transmitted to the second support portion, the second support portion Chatter is less likely to be generated from the part.

In the present invention, an aspect in which an adhesive is provided in the second non-contact area can be adopted. According to this aspect, the second corner portion and the third corner portion can be brought into contact with each other in a stable state. Therefore, even if vibration or the like when the movable body is driven is transmitted to the second support portion, the second support portion Chatter is less likely to be generated from the part.

In the present invention, it is possible to employ a mode in which the outer edge portion of the second corner portion and the outer edge portion of the third corner portion face each other with a second gap on the end surface of the support. According to this aspect, even if vibration or the like when the movable body is driven is transmitted to the second support portion, chatter noise is unlikely to be generated from the end surface of the support body.

In the present invention, one of the outer edge portion of the second corner portion and the outer edge portion of the third corner portion has a second bent portion that bends the second gap into an L shape. be able to. According to this aspect, it is possible to suppress the entry of foreign matter from the second gap.

In the present invention, at least a part of the wall portion extending from the first corner portion of the first case member and the wall portion extending from the second corner portion of the holder are at least part of the end surface of the support body. A non-contact state can be adopted. According to this aspect, chatter is unlikely to occur between the wall of the first case member and the wall of the holder.

In the present invention, the coil and the magnet face each other in the first direction, and the magnetic drive circuit relatively moves the movable body with respect to the support body in a second direction intersecting the first direction. It is possible to adopt a mode in which it is set.

In the present invention, in the present invention, the first support portion where the first corner portion of the first case member and the second corner portion of the holder overlap in the first direction has the first corner portion and the second corner portion. Since the first non-contact area separated in one direction and the first contact area where the first corner and the second corner contact in the first direction are provided, the first corner and the second corner are formed. The contact area is limited. Therefore, the first corner and the second corner can be brought into contact with each other in a stable state. Therefore, even if vibration or the like when the movable body is driven is transmitted to the first support portion, chatter noise is unlikely to be generated from the first support portion.

The perspective view of the actuator concerning the embodiment of the present invention. The XZ sectional view of the actuator shown in FIG. FIG. 2 is an exploded perspective view of the actuator shown in FIG. 1 when disassembled and viewed from one side in a first direction. FIG. 2 is an exploded perspective view of the actuator shown in FIG. 1 when disassembled and viewed from the other side in the first direction. FIG. 3 is an exploded perspective view of the magnetic drive circuit shown in FIG. 2. Explanatory drawing of a holder, a coil, etc. which are shown in FIG. Explanatory drawing of the holder etc. which are shown in FIG. Explanatory drawing of the movable body shown in FIG. The perspective view which looked at the 1st corner and the 2nd corner shown in Drawing 3 from the other side of the 1st direction. The perspective view which looked at the 2nd corner and the 3rd corner shown in Drawing 4 from one side of the 1st direction. FIG. 10 is an XZ sectional view when the support body is cut at a position that passes through the first corner shown in FIG. 9. FIG. 10 is a YZ sectional view when the support body is cut at a position passing through the first corner shown in FIG. 9. FIG. 10 is an XZ cross-sectional view when the support is cut between the first corners shown in FIG. 9. FIG. 10 is a YZ cross-sectional view when the support is cut between the first corners shown in FIG. 9. FIG. 11 is a YZ sectional view when the support body is cut at a position passing through the through hole shown in FIGS. 9 and 10. FIG. 11 is an XZ sectional view when the support body is cut at a position passing through the through hole shown in FIGS. 9 and 10. Sectional drawing which shows the clearance gap between the wiring board shown in FIG. 5, etc. and the 3rd wall part of a holder.

An embodiment of the present invention will be described with reference to the drawings. In the following description, the three directions that intersect each other will be described as a first direction Z, a second direction X, and a third direction Y, respectively. Further, the first direction Z, the second direction X, and the third direction Y are directions orthogonal to each other. Further, X1 is attached to one side of the second direction X, X2 is attached to the other side of the second direction X, Y1 is attached to one side of the third direction Y, and Y2 is attached to the other side of the third direction Y. , Z1 is attached to one side of the first direction Z, and Z2 is attached to the other side of the first direction Z.

In the magnetic drive circuit 6 of the actuator 1 described below, the coil 7 is provided on the support 2 (one side member) side, and the magnet 8 is provided on the movable body 3 (other side member) side. , And the magnet 8 are provided on the side of the support body 2 (member on the other side), and the coil 7 is provided on the side of the movable body 3 (member on the one side). In the following description, the coil 7 is provided on the support body 2 side and the magnet 8 is provided on the movable body 3 side.

(overall structure)
FIG. 1 is a perspective view of an actuator 1 according to an embodiment of the present invention. FIG. 2 is an XZ sectional view of the actuator 1 shown in FIG. FIG. 3 is an exploded perspective view of the actuator 1 shown in FIG. 1 when disassembled and viewed from one side Z1 of the first direction Z. FIG. 4 is an exploded perspective view when the actuator 1 shown in FIG. 1 is disassembled and viewed from the other side Z2 in the first direction Z.

As shown in FIGS. 1 and 2, the actuator 1 of the present embodiment has a rectangular parallelepiped shape in which the dimension in the second direction X is larger than the dimension in the third direction Y as a whole. In addition, as shown in FIG. 2, the actuator 1 includes a support body 2, a movable body 3 movably supported by the support body 2, and a magnetic drive circuit 6 for relatively moving the movable body 3 with respect to the support body 2. The magnetic drive circuit 6 vibrates the movable body 3 in the second direction X.

As shown in FIGS. 1, 2 and 3, the support 2 includes a holder 60, a first case member 16 overlapping the holder 60 on one side Z1 in the first direction Z, and a holder 60 in the first direction Z. The second case member 17 overlaps on the other side Z2, and the movable body 3 and the magnetic drive circuit 6 are arranged between the first case member 16 and the second case member 17. The first case member 16, the holder 60 and the second case member 17 each have a quadrangular planar shape. The first corner 160 near the corner of the first case member 16, the second corner 600 near the corner of the holder 60, and the third corner 170 near the corner of the second case member 17 are in the first direction Z. It overlaps with. In the present embodiment, each of the first case member 16, the holder 60, and the second case member 17 is made of resin. Note that the vicinity of a corner means a corner and a region adjacent to the corner.

As shown in FIGS. 3 and 4, the first case member 16 includes a first wall portion 161 located on one side X1 of the second direction X and a second wall portion located on the other side X2 of the second direction X. 162, a third wall portion 163 located on one side Y1 in the third direction Y, and a fourth wall portion 164 located on the other side Y2 in the third direction Y, and has a bottom plate portion 165. .. When viewed from the first direction Z, the widths (dimensions in the second direction X) of the first wall portion 161 and the second wall portion 162 are the widths of the third wall portion 163 and the fourth wall portion 164 (in the third direction Y). Dimension) wider.

Positioning holes 16c opened toward the other side Z2 in the first direction Z are formed near each of the four corners of the first case member 16. Further, a bottomed hole 16e for fixing the screw 18 is formed at one diagonal position of the first case member 16, and a through hole 16f is formed at the other diagonal position.

On the surface of the bottom plate portion 165 on the other side Z2 in the first direction Z, two recesses 166 and 167 arranged in the second direction X are formed. Through holes 16a are formed at the corners of the recess 166 on one side X1 in the second direction X and the corners of the recess 167 on the other side X2 in the second direction X. Through holes 16b are formed at both ends of the recesses 166 and 167 in the third direction Y.

On the outer surface of the third wall portion 163, a concave portion 168 recessed on the other side Y2 in the third direction Y extends along the second direction X. In the third wall portion 163, a plurality of convex plate portions 163a protruding toward the other side Z2 in the first direction Z are formed along the second direction X at predetermined intervals. The first wall portion 161 and the second wall portion 162 are formed with columnar protrusions 161h and 162h protruding toward the other side Z2 in the first direction Z. Further, on the first wall portion 161 and the second wall portion 162, convex plate portions 161a and 162a protruding from the outer edge portion to the other side Z2 in the first direction Z are formed in the center in the third direction Y.

The second case member 17 includes a first wall portion 171 located on one side X1 of the second direction X, a second wall portion 172 located on the other side X2 of the second direction X, and one side of the third direction Y. The bottom plate part 175 is surrounded by the third wall part 173 located in Y1 and the fourth wall part 174 located on the other side Y2 in the third direction Y. When viewed from the first direction Z, the widths (dimensions in the second direction X) of the first wall portion 171 and the second wall portion 172 are the widths of the third wall portion 173 and the fourth wall portion 174 (in the third direction Y). Dimension) wider.

Positioning recesses 17d that are open toward the one side Z1 in the first direction Z are formed near each of the four corners of the second case member 16. A through hole 17e for fixing the screw 18 is formed at one diagonal position of the second case member 17, and a through hole 17f is formed at the other diagonal position.

On the surface of the bottom plate portion 175 on the one side Z1 in the first direction Z, two recesses 176 and 177 arranged in the second direction X are formed. Further, notches 17b are formed at the edges of the recesses 176 and 177.

On the outer surface of the third wall portion 173, a recess 178 recessed on the other side Y2 in the third direction Y extends along the second direction X. The first wall portion 171 and the second wall portion 172 are formed with holes 171h and 172h into which the convex portions 161h and 162h of the first case member 16 fit. On the first wall portion 171, a convex plate portion 171a protruding in one side Z1 of the first direction Z is formed at the center in the third direction Y.

(Structure of magnetic drive circuit 6)
FIG. 5 is an exploded perspective view of the magnetic drive circuit 6 shown in FIG. As shown in FIGS. 2 and 5, the magnetic drive circuit 6 includes a coil 7 and a magnet 8 that faces the coil 7 in the first direction Z. The coil 7 includes a first coil 71 and a second coil 72 that are arranged in parallel in the second direction X, and the coil 7 is held by the holder 60 of the support body 2.

(Configuration of coil 7 and holder 60)
FIG. 6 is an explanatory view of the holder 60, the coil 7 and the like shown in FIG. FIG. 7 is an explanatory diagram of the holder 60 and the like shown in FIG. As shown in FIGS. 6 and 7, the coil 7 is an elliptical air-core coil in which the long side 701 (effective portion) extends in the third direction Y, and the coil 7 is provided on one side Y1 of the third direction Y. The end 705 of the line is pulled out.

The holder 60 is located on one side Y1 of the second direction X, the first wall portion 61 located on the other side X2 of the second direction X, and the one side Y1 of the third direction Y. The bottom plate portion 65 is surrounded by the third wall portion 63 and the fourth wall portion 64 located on the other side Y2 in the third direction Y. When viewed in the first direction Z, the widths of the first wall portion 61 and the second wall portion 62 (dimensions in the second direction X) are the widths of the third wall portion 63 and the fourth wall portion 64 (in the third direction Y). Dimension) wider.

A through hole 60e for passing the screw 18 is formed in one diagonal position of the holder 60, and a through hole 60f is formed in the other diagonal position. At both ends of the third wall portion 63 and the fourth wall portion 64 in the second direction X, positioning projections 60c protruding in one side Z1 of the first direction Z and protruding in the other side Z2 of the first direction Z. The positioning convex portion 60d is formed.

Two coil holding holes 651 and 652 are formed in the bottom plate portion 65 so as to be juxtaposed in the second direction X, and the first coil 71 and the second coil 72 are arranged in each of the coil holding holes 651 and 652. ing. The coil holding holes 651 and 652 are through holes, and the receiving portions 641 projecting at both ends in the third direction Y so as to overlap a part of the coil holding holes 651 and 652 on the other side Z2 in the first direction Z, 642 is formed. Therefore, when the first coil 71 and the second coil 72 are mounted in the coil holding holes 651 and 652 from the one side Z1 of the first direction Z, the short side 702 (ineffective portion) of the coil 7 is moved to the first by the receiving portions 641 and 642. It is supported by the other side Z1 in the direction Z. In this state, the plate 26 is superposed on the holder 60 from the one side Z1 in the first direction Z, and the plate 26 is fixed to the first coil 71 and the second coil 72 by an adhesive and also fixed to the holder 60. It The plate 26 is, for example, a non-magnetic metal plate such as aluminum or stainless steel.

The holder 60 has a first opening 601 formed between the coil holding hole 651 and the first wall portion 61, and a second opening 602 formed between the coil holding hole 652 and the second wall portion 62. ing. The first opening 601 and the second opening 602 penetrate the bottom plate portion 65 of the holder 60 in the first direction Z. Notches 603 are formed on the inner peripheral surfaces of the first opening 601 and the second opening 602.

In the first wall portion 61, a recess 611 (see FIGS. 2 and 4) is formed between the second corners 600 on one side Z1 in the first direction Z, and a recess is formed on the other side Z2 in the first direction Z. 612 is formed. In the second wall portion 62, a recess 621 (see FIGS. 2 and 4) is formed between the second corners 600 on one side Z1 in the first direction Z, and a recess is formed on the other side Z2 in the first direction Z. 622 is formed. Therefore, the four second corners 600 have a structure protruding toward both sides in the first direction Z.

On the outer surface of the third wall 63, a recess 630 recessed in the other side Y2 in the third direction Y extends along the second direction X, and the bottom of the recess 630 has one side in the first direction Z. A plurality of cutout-shaped lead-out portions 68 having openings Z1 are formed along the second direction X. In addition, the portion of the recess 630 sandwiched by the lead-out portions 68 is a recess 630a that is further recessed from the bottom of the recess 630 to the other side in the third direction Y.

A plurality of engaging protrusions 69 protruding in one side Y1 of the third direction Y at positions displaced from the recess 630a in the second direction X are formed on the bottom of the recess 630a along the second direction X. There is. In this embodiment, the engaging protrusions 69 are formed at three places.

(Treatment of the end of the coil 7)
In this embodiment, the wiring board 15 is fixed to the outer surface of the third wall portion 63 of the holder 60. A notch 158 is formed in the wiring board 15 at a portion overlapping the lead portion 68. Further, the wiring board 15 has a plurality of engagement holes 159 formed in a portion overlapping the engagement protrusion 69. In the present embodiment, three engaging holes 159 are formed as the plurality of engaging holes 159 in correspondence with the number of engaging convex portions 69, and among the three engaging holes 159, the central engaging hole 159. Are formed in a notch shape connected to the notch 158.

The wiring board 15 is fixed to the outer surface of the third wall portion 63 of the holder 60 with an adhesive in a state where the engagement protrusion 69 and the engagement hole 159 are engaged with each other. On the wiring board 15, a land 151 to which the end 705 of the first coil 71 and the end 705 of the second coil 72 are electrically connected, and a wiring member (not shown) from the outside are electrically connected. The end portion 705 of the first coil 71 and the end portion 705 of the second coil 72 are drawn to the land 151 via the lead-out portion 68, and then electrically connected to the land 151 by soldering. Connected to each other. The land 151 and the land 152 are connected via a wiring pattern (not shown).

In this embodiment, three lands 151 are formed, and the winding end end 705 of the first coil 71 and the winding start end 705 of the second coil 72 are electrically connected to the central land 151. It Therefore, the first coil 71 and the second coil 72 are electrically connected in series. The first coil 71 and the second coil 72 may be electrically connected in parallel.

(Structure of support 2)
In the present embodiment, with the first case member 16, the holder 60 and the second case member 17 stacked in the first direction Z, the through hole 17e of the second case member 17, the through hole 60e of the holder 60, and the first case A screw 18 made of a tapping screw is fixed to the hole 16e of the member 16 and the first case member 16, the holder 60 and the second case member 17 are fastened in the first direction Z. When the screw 18 is stopped, the head of the screw 18 does not project from the second case member 17 to the other side Z2 in the first direction Z.

Further, as described later, the first adhesive is provided between the first corner portion 160 of the first case member 16 and the second corner portion 600 of the holder 60, and the second corner portion 600 of the holder 60 and the second corner portion The second adhesive is provided between the case member 17 and the third corner 170.

In this way, the support body 2 is formed by the first case member 16, the holder 60, and the second case member 17. At this time, the convex portions 161h and 162h of the first case member 16 penetrate the holes 61h and 62h of the holder 60 and fit into the holes 171h and 172h of the second case member 17, respectively. Further, the convex portion 60c of the holder 60 fits into the hole 16c of the first case member 16, and the convex portion 60d of the holder 60 fits into the concave portion 17d of the second case member 17. Therefore, the first case member 16, the holder 60, and the second case member 17 are connected to each other while being positioned with respect to each other. Further, the convex plate portion 163a of the first case member 16 overlaps the concave portion 630a of the holder 60.

The through hole 17f of the second case member 17, the through hole 60f of the holder 60, and the through hole 17f of the second case member 17 are screws (not shown) for fixing to the frame of the device when the actuator 1 is mounted on various devices. (Not shown) is stopped.

(Structure of the movable body 3)
FIG. 8 is an explanatory diagram of the movable body 3 shown in FIG. As shown in FIGS. 5 and 8, the movable body 3 shown in FIG. 2 and the like includes a first yoke 86 including a flat plate portion 860 facing the coil 7 on the one side Z1 in the first direction Z, and the coil 7. On the other hand, the magnet 8 is provided with the second yoke 87 having the flat plate portion 870 facing the other side Z2 in the first direction Z. The magnet 8 is held on at least one of the surface of the flat plate portion 860 of the first yoke 86 facing the coil 7 and the surface of the flat plate portion 870 of the second yoke 87 facing the coil 7, and is held by the coil 7 in the first direction Z. Are facing each other.

In the present embodiment, the movable body 3 includes, as the magnet 8, the first magnet 81 fixed to the surface of the flat plate portion 860 of the first yoke 86 facing the coil 7 by a method such as adhesion, and the flat plate portion of the second yoke 87. The second magnet 82 adjacent to the first magnet 81 in the direction intersecting the first direction Z is provided on the surface of the 870 facing the coil 7. In the present embodiment, the first magnet 81 and the second magnet 82 are adjacent to each other in the second direction X. Therefore, the first magnet 81 faces the long side 701 of the first coil 71 on one side Z1 in the first direction Z, and the second magnet 82 faces the long side 701 of the second coil 72 in the first direction Z one side. Opposed on the side Z1.

The movable body 3 includes, as the magnets 8, the first magnet 83 fixed to the surface of the flat plate portion 870 of the second yoke 87 facing the coil 7 by a method such as bonding, and the flat plate portion 870 of the second yoke 87. The second magnet 84, which is adjacent to the first magnet 83 in the direction intersecting the first direction Z, of the surface facing the coil 7 is provided. In the present embodiment, the first magnet 83 and the second magnet 84 are adjacent to each other in the second direction X. Therefore, the first magnet 83 faces the long side 701 of the first coil 71 on the other side Z2 in the first direction Z, and the second magnet 84 contacts the long side 701 of the second coil 72 on the other side in the first direction Z. Opposed on the side Z2.

In this embodiment, the first magnets 81 and 83 and the second magnets 82 and 84 are polarized and magnetized in the thickness direction (first direction Z) and the width direction (X direction), respectively. First magnet 81 and second magnet 8
2 is magnetized in the same direction in the adjacent direction (second direction X), and the first magnet 83 and the second magnet 84 are magnetized in the same direction in the adjacent direction (second direction X). There is. Therefore, the magnetic poles of the first magnet 81 on the second magnet 82 side and the magnetic poles of the second magnet 82 on the first magnet 81 side are different, and the magnetic poles of the first magnet 83 on the second magnet 84 side and the second magnet 84. Is different from the magnetic pole on the first magnet 83 side.

Further, the first magnet 81 and the first magnet 83 are magnetized in opposite directions in the adjacent direction (second direction X), and the second magnet 82 and the second magnet 84 are adjacent to each other (second direction). X) is magnetized in the opposite direction. Therefore, the first magnet 81 and the first magnet 83 have different magnetic poles on the surface facing the first coil 71, and the second magnet 82 and the second magnet 84 have different magnetic poles on the surface facing the second coil 72. The magnetic poles are different.

The first yoke 86 extends from an end portion of the flat plate portion 860 on one side X1 in the second direction to the other side Z2 in the first direction Z, and is connected to the second yoke 87. The flat plate portion 860 includes a second connecting plate portion 862 that extends from the other end X2 in the second direction to the other side Z2 in the first direction Z and is connected to the second yoke 87. The first connecting plate portion 861 and the second connecting plate portion 862 have smaller dimensions in the third direction Y than the flat plate portion 860, and the notches 869 are formed on both sides of the first connecting plate portion 861 and the second connecting plate portion 862. ing. As shown in FIG. 3 and FIG. 4, the first connecting plate portion 861 passes through the first opening 601 of the holder 60 on one side X1 in the second direction X with respect to the coil 7 and the other side in the first direction Z. The second connecting plate portion 862 extends toward Z2, passes through the second opening 602 of the holder 60 on the other side Z2 in the second direction X with respect to the coil 7, and moves to the other side Z2 in the first direction Z. It is extending toward.

In this embodiment, the first connecting plate portion 861 and the second connecting plate portion 862 are connected to the end portion of the second yoke 87 by welding. More specifically, the end portion 861a of the other side Z2 of the first connecting plate portion 861 in the first direction Z overlaps with the first side surface 871 of the flat plate portion 870 of the second yoke 87 and the first connecting plate portion 861. The first side surface 871 of the second yoke 87 is welded. Similarly, the end portion 862a of the second connecting plate portion 862 on the other side Z2 in the first direction Z overlaps with the second side surface 872 of the flat plate portion 870 of the second yoke 87, and the second connecting plate portion 862 and the second yoke. The second side surface 872 of 87 is welded.

On one of the end portion 861a of the first connecting plate portion 861 and the first side surface 871, a convex portion that is fitted and welded to a concave portion formed on the other is formed, and an end portion of the second connecting plate portion 862. One of the 862a and the second side surface 872 is provided with a convex portion that is fitted into and welded to the concave portion formed in the other. In the present embodiment, the convex portion 873 formed on the flat plate portion 870 is fitted and welded to the concave portion 863 formed on the end portion 861a of the first connecting plate portion 861, and the convex portion 874 formed on the flat plate portion 870 is the second. It is fitted and welded to a recess 864 formed in the end portion 862a of the connecting plate portion 862.

In this embodiment, the flat plate portion 860 of the first yoke 86 and the flat plate portion 870 of the second yoke 87 have ends of the first yoke 86 and the second yoke 87 at the ends in the third direction Y when the magnet 8 is mounted. Notches 860a and 870a for positioning are formed.

In the movable body 3 thus configured, at least one of the first yoke 86 and the magnet 8 is provided with a mark indicating the magnetizing direction of the magnet 8. For example, of the four corners of the flat plate portion 860, the first yoke 86 is provided with a mark 86s in which the corner on the side where the S pole is located is cut out, and the other corners are angular. At least one of the second yoke 87 and the magnet 8 is also marked with a magnetizing direction of the magnet 8. For example, of the four corners of the flat plate portion 870, the second yoke 87 is provided with a mark 87s in which the corner on the side where the N pole is located is cut out, and the other corners are angular. In addition, when attaching a mark to the magnet 8, printing or the like may be used.

(Configuration of positioning protrusions 865 and 875)
In the first yoke 86, a part of the first yoke 86 projects from one surface on which the magnet 8 is fixed, and the first magnet 81 and the second magnet 82 are positioned in the in-plane direction of the flat plate portion 860 of the first yoke 86. It has a positioning convex portion 865 for performing. In the present embodiment, the positioning protrusion 865 includes the first protrusion 865a that defines the position of the first magnet 81 on the second magnet 82 side and the second protrusion 865a that defines the position of the second magnet 82 on the first magnet 81 side. Section 865b. In the present embodiment, the first convex portion 865a and the second convex portion 865b are the common convex portion 865c provided between the first magnet 81 and the second magnet 82. The convex portion 865c (the first convex portion 865a and the second convex portion 865b) is provided at two locations separated in the third direction Y.

The positioning protrusion 865 further positions the first magnet 81 and the second magnet 82 in the third direction Y intersecting the second direction X in which the first magnet 81 and the second magnet 82 are adjacent to each other. The three convex portions 865d and 865e are included. In the present embodiment, the third protrusions 865d are provided at two locations on both sides of the first magnet 81 in the Y direction, and the third protrusions 865e are provided at two locations on both sides of the second magnet 82 in the Y direction.

The positioning projection 865 is a projection in which a part of the flat plate portion 860 of the first yoke 86 is projected from the other surface side opposite to the magnet 8 to the one surface side where the magnet 8 is located. Therefore, as shown in FIG. 4, on the other surface of the flat plate portion 860 of the first yoke 86 opposite to the magnet 8, a concave mark 865x when the positioning convex portion 865 is formed remains.

Here, in the first yoke 86, positioning protrusions 865 are provided on the opposite side of the first magnet 81 from the second magnet 82 and on the opposite side of the second magnet 82 from the first magnet 81. Absent. Further, the protruding size of the positioning protrusion 865 from the flat plate portion 860 is smaller than the thickness of the magnet 8 (thickness of the first magnet 81 and second magnet 82 ). Therefore, when the magnet 8 is mounted on the flat plate portion 860 of the first yoke 86, the magnet 8 located at the lowermost position among the plurality of magnets 8 stacked inside the cartridge or the like is slid to move the first magnet 81. The positioning protrusions 865 do not interfere with the positioning protrusions 865 and the cartridge because they do not easily interfere with each other.

Although not shown, in the second yoke 87, like the first yoke 86, a part of the second yoke 87 protrudes from the one surface to which the magnet 8 is fixed, and the first magnet 83 and the second magnet 84 are separated from each other. The second yoke 87 has a positioning protrusion that positions the flat plate portion 870 in the in-plane direction. Therefore, as shown in FIG. 8, on the other surface of the second yoke 87 on the side opposite to the magnet 8 of the flat plate portion 870, a concave mark 875x when the positioning convex portion 875 is formed remains.

The positioning protrusion 865 may be a protrusion formed by bending a part of the first yoke 86 and the second yoke 87.

(Structure of stopper)
As shown in FIG. 2, in this embodiment, the first connecting member 861 of the first yoke 86 used for the movable body 3 is provided on the first side X1 of the first case member 16 on the one side X1 in the second direction X. The inner surfaces of the wall portion 161, the first wall portion 61 of the holder 60, and the first wall portion 171 of the second case member 17 are opposed to each other in a state of forming a continuous plane. Therefore, the first connecting plate portion 861 serves as a first stopper that restricts the movable range of the movable body 3 in the one side X1 of the second direction X when the movable body 3 moves in the one side X1 of the second direction X. I am configuring.

Similarly, on the other side X2 in the second direction X with respect to the second connecting plate portion 862, the first case member 1
The inner surfaces of the second wall portion 162 of No. 6, the second wall portion 62 of the holder 60, and the second wall portion 172 of the second case member 17 face each other in the state of forming a continuous plane. Therefore, the second connecting plate portion 862 has a second stopper that restricts the movable range of the movable body 3 to the other side X2 in the second direction X when the movable body 3 moves to the other side X2 in the second direction X. I am configuring.

(basic action)
In the actuator 1 of the present embodiment, when an alternating current is applied to the coil 7, the movable body 3 vibrates in the second direction X, so that the center of gravity of the actuator 1 changes in the second direction X. Therefore, the user can feel the vibration in the second direction X. At that time, by adjusting the AC waveform applied to the coil 7, the acceleration of the movable body 3 moving to the one side X1 in the second direction X and the acceleration of the movable body 3 moving to the other side X2 in the second direction. If they are different, the user can experience the directional vibration in the second direction X.

(Structures of the connection body 90 and the viscoelastic member 9)
As shown in FIG. 2, FIG. 4 and FIG. 5, a connecting body 90 for connecting to the support body 2 and the movable body 3 is provided. The connection body 90 includes at least one of elasticity and viscoelasticity. In the present embodiment, the connecting body 90 is the viscoelastic member 9 provided at a position where the support body 2 and the movable body 3 face each other in the first direction Z, and the first direction Z, the second direction X, and the third direction. It is elastically deformable in the direction Y. Viscoelasticity is a property that combines both viscosity and elasticity, and is a property remarkably found in polymer substances such as gel-like members, plastics, and rubber. Therefore, various gel-like members can be used as the viscoelastic member 9. As the viscoelastic member 9, natural rubber, diene rubber (for example, styrene/butadiene rubber, isoprene rubber, butadiene rubber), chloroprene rubber, acrylonitrile/butadiene rubber, etc., non-diene rubber (for example, butyl rubber, ethylene/propylene rubber) , Ethylene/propylene/diene rubber, urethane rubber, silicone rubber, fluororubber, etc.), thermoplastic elastomers, and various rubber materials and modified materials thereof.

In the present embodiment, only the viscoelastic member 9 as the connecting body 90 is connected to both the support body 2 and the movable body 3. In the present embodiment, as the viscoelastic member 9, the first viscoelastic member 91 is arranged at a position where the first yoke 86 of the movable body 3 and the first case member 16 of the support body 2 face each other in the first direction Z, The second viscoelastic member 92 is arranged at a position where the second yoke 87 of the movable body 3 and the second case member 17 of the support body 2 face each other in the first direction Z. More specifically, the first viscoelastic member 91 is provided between each of the flat plate portion 860 of the first yoke 86 and the bottom portions of the concave portions 166 and 167 of the first case member 16, and the second viscoelastic member 92. Are provided between the flat plate portion 870 of the second yoke 87 and the bottom portions of the recesses 176 and 177 of the second case member 17, respectively.

Here, the first viscoelastic member 91 is arranged in a state of being compressed in the first direction Z between the flat plate portion 860 of the first yoke 86 and the bottom portions of the concave portions 166 and 167 of the first case member 16. The two viscoelastic member 92 is arranged between the flat plate portion 870 of the second yoke 87 and the bottom portions of the recesses 176 and 177 of the second case member 17 in a compressed state in the first direction Z. The first viscoelastic member 91 is bonded to the surface in contact with the support body 2 (bottoms of the recesses 166 and 167 of the first case member 16) and to the surface in contact with the movable body 3 (first yoke 86). The second viscoelastic member 92 is adhered to the surface in contact with the support 2 (bottoms of the recesses 176 and 177 of the second case member 17) and to the surface in contact with the movable body 3 (second yoke 87).

In this embodiment, the viscoelastic member 9 (the first viscoelastic member 91 and the second viscoelastic member 92) is a silicone gel having a penetration of 10 to 110 degrees. The penetration degree is defined by JIS-K-2207 or JIS-K-2220, and the smaller the value, the harder it is. The viscoelastic member 9 has a linear or non-linear expansion/contraction characteristic depending on the expansion/contraction direction. For example, when the viscoelastic member 9 is pressed in the thickness direction (axial direction) and is compressed and deformed, the viscoelastic member 9 has expansion and contraction characteristics in which the nonlinear component (spring coefficient) is larger than the linear component (spring coefficient). On the other hand, when it is stretched by being pulled in the thickness direction (axial direction), it has expansion/contraction characteristics in which the linear component (spring coefficient) is larger than the nonlinear component (spring coefficient). On the other hand, when the viscoelastic member 9 is deformed in the direction (shear direction) intersecting the thickness direction (axial direction) as in the present embodiment, the deformation is in a direction in which the viscoelastic member 9 is pulled and stretched regardless of the movement. Therefore, it has a deformation characteristic in which the linear component (spring coefficient) is larger than the nonlinear component (spring coefficient). Therefore, in the viscoelastic member 9, the spring force depending on the movement direction is constant. Therefore, as in the present embodiment, by using the spring element of the viscoelastic member 9 in the shearing direction, the reproducibility of the vibration acceleration with respect to the input signal can be improved, so that the vibration with a subtle nuance is realized. be able to.

In the present embodiment, among the recesses 166 and 167 of the first case member 16, a plurality of recesses may be formed in the connection regions 166a and 167a to which the first viscoelastic member 91 is connected. Further, among the recesses 176, 177 of the second case member 17, a plurality of recesses may be formed in the connection regions 176a, 177a to which the second viscoelastic member 92 is connected.

According to this aspect, since the connecting body 90 is compressed in the first direction Z, a part of the connecting body 90 is located inside the plurality of recesses. Therefore, the edges of the plurality of recesses prevent the connecting body 90 from moving in the direction intersecting the first direction Z. Therefore, when the connection body 90 is arranged between the support body 2 and the movable body 3, the edges of the plurality of recesses effectively suppress the movement of the connection body 90 in the direction intersecting the first direction Z. .. Further, when the movable body 3 is driven in the second direction X, the edges of the plurality of recesses effectively prevent the connecting body 90 from moving in the second direction X. Therefore, it is possible to suppress the positional displacement of the connection body 90 arranged between the support body 2 and the movable body 3. Further, the connection body 90 is fixed to the connection regions 166a, 167a, 176a, 177a via an adhesive, and a part of the adhesive is located inside the plurality of recesses. Therefore, the adhesive strength of the connection body 901 is high.

(Support structure for the first case member 16, the holder 60, and the second case member 17)
FIG. 9 is a perspective view of the first corner portion 160 and the second corner portion 600 shown in FIG. 3 as seen from the other side Z2 in the first direction Z. FIG. 10 is a perspective view of the second corner portion 600 and the third corner portion 170 shown in FIG. 4 viewed from the one side Z1 in the first direction Z. FIG. 11 is an XZ sectional view when the support body 2 is cut at a position passing through the first corner portion 160 shown in FIG. FIG. 12 is a YZ sectional view when the support body 2 is cut at a position passing through the first corner portion 160 shown in FIG. FIG. 13 is an XZ sectional view when the support body 2 is cut between the first corner portions 160 shown in FIG. FIG. 14 is a YZ cross-sectional view when the support body 2 is cut between the first corner portions 160 shown in FIG.

As shown in FIGS. 9 to 12, when the support 2 is formed, the first corner 160 of the first case member 16 and the second corner 600 of the holder 60 are formed at each of the four corners of the support 2. Overlap with each other in the first direction Z to form the first support portion 21. Further, at each of the four corners of the support body 2, the second corner portion 600 of the holder 60 and the third corner portion 170 of the second case member 17 overlap with each other in the first direction Z to form the second support portion 22. ..

In the present embodiment, the first support portion 21 has a first non-contact area 211 where the first corner 160 and the second corner 600 are separated from each other in the first direction Z, and a position adjacent to the first non-contact area 211. Thus, a first contact region 212 where the first corner portion 160 and the second corner portion 600 are in contact with each other in the first direction Z is provided. In the present embodiment, the surface of the second corner portion 600 on the one side Z1 in the first direction Z is a flat surface, while the surface of the first corner portion 160 on the other side Z2 in the first direction Z is shown in gray in FIG. The first region 16s and the second region 16t that is recessed from the first region 16s on the one side Z1 in the first direction Z are included. Therefore, when the first corner 160 and the second corner 600 overlap each other in the first direction Z, in the second region 16t, the first corner 160 and the second corner 600 are separated from each other in the first direction Z. The first non-contact area 211 is formed, and the first area 16s forms the first contact area 212 where the first corner 160 and the second corner 600 are in contact with each other in the first direction Z. Here, the first contact region 212 is provided so as to surround the first non-contact region 211. The first non-contact area 211 is provided with a first adhesive H1 (see FIGS. 11 and 12) that bonds the first corner 160 and the second corner 600.

In the present embodiment, the through hole 67 for filling the first adhesive H1 is formed in the holder 60 at a position corresponding to the first non-contact area 211, and the detailed configuration of the through hole 67 is as follows. This will be described later with reference to FIGS. 15 and 16.

The second support portion 22 has a second non-contact area 221 in which the second corner portion 600 and the third corner portion 170 are separated from each other in the first direction Z, and a second corner at a position adjacent to the second non-contact area 221. A second contact region 222 is provided in which the part 600 and the third corner part 170 are in contact with each other in the first direction Z. In the present embodiment, the surface of the third corner portion 170 on the one side Z1 in the first direction Z is a flat surface, while the surface of the second corner portion 600 on the other side Z2 in the first direction Z is shown in gray in FIG. The third region 60s and the fourth region 60t recessed from the third region 60s to the one side Z1 in the first direction Z are included. Therefore, when the second corner portion 600 and the third corner portion 170 overlap in the first direction Z, in the fourth region 60t, the second corner portion 600 and the third corner portion 170 are separated from each other in the first direction Z. The second non-contact region 221 is formed, and the third region 60s forms a second contact region 222 where the second corner portion 600 and the third corner portion 170 are in contact with each other in the first direction Z. Here, the second contact region 222 is provided so as to surround the second non-contact region 221. Further, the second non-contact area 221 is provided with a second adhesive H2 (see FIGS. 11 and 12) that bonds the second corner portion 600 and the third corner portion 170.

As shown in FIGS. 11 and 12, on the end surface of the support body 2, the outer edge portion 16r of the first corner portion 160 and the outer edge portion 60r of the second corner portion 600 are opposed to each other via the first gap 24. In the present embodiment, one of the outer edge portion 16r of the first corner portion 160 and the outer edge portion 60r of the second corner portion 600 has a first bent portion that bends the first gap 24 into an L shape. In the present embodiment, the outer edge portion 16r of the first corner portion 160 has the first bent portion 16u that is bent in the L shape on the other side Z2 in the first direction Z along the outer edge portion 60r of the second corner portion 600. The first bent portion 16u bends the first gap 24 in an L shape. In addition, you may provide a 1st bending part in the outer edge part 60r of the 2nd corner|angular part 600, and may bend the 1st clearance gap 24 in L shape.

Further, on the end surface of the support body 2, the outer edge portion 60p of the second corner portion 600 and the outer edge portion 17p of the third corner portion 170 are opposed to each other via the second gap 25. In this embodiment, one of the outer edge portion 60p of the second corner portion 600 and the outer edge portion 17p of the third corner portion 170 has a second bent portion that bends the second gap 25 into an L shape. In the present embodiment, the outer edge portion 17p of the third corner portion 170 has the second bent portion 17u that is bent in the L shape in the one side Z1 of the first direction Z along the outer edge portion 60p of the second corner portion 600. The second gap 25 is bent into an L shape by the second bent portion 17u. A second bent portion may be provided on the outer edge portion 60p of the second corner portion 600 to bend the second gap 25 into an L shape.

In the present embodiment, at least a part of the wall portion extending from the first corner portion 160 of the first case member 16 and the wall portion extending from the second corner portion 600 of the holder 60 is an end surface of the support body 2. Not in contact. Further, at least a part of the wall portion extending from the third corner portion 170 of the second case member 17 and the wall portion extending from the second corner portion 600 of the holder 60 are not in contact with each other on the end surface of the support body 2. Is in a state. That is, in the support body 2, even at portions other than the first corner portion 160, the second corner portion 600, and the third corner portion 170, for example, as shown in FIG. Between the first wall portion 161 of 16 and the first wall portion 61 of the holder 60, a gap 28 that is bent in an L-shape is formed, and the first wall portion 171 of the second case member 17 and the holder 60 are formed. An L-shaped bent gap 29 is formed between the first wall portion 61 and the like.

Further, as shown in FIG. 14, on the end surface of the support body 2, the third wall portion 16 of the first case member 16 is provided.
3 and the third wall portion 63 of the holder 60, an L-shaped curved gap 28 is formed, and the third wall portion 173 of the second case member 17 and the third wall portion 63 of the holder 60 are formed. A gap 29 bent in an L shape is formed in the space or the like. Further, a gap 28 is formed between the fourth wall portion 164 of the first case member 16 and the fourth wall portion 64 of the holder 60, and the fourth wall portion 174 of the second case member 17 and the fourth wall portion 174 of the holder 60 are formed. An L-shaped bent gap 29 is formed between the wall portion 64 and the like.

(Structure of through holes for filling adhesive)
FIG. 15 is a YZ sectional view when the support body 2 is cut at a position passing through the through hole 67 shown in FIGS. 9 and 10. FIG. 16 is an XZ sectional view when the support 2 is cut at a position passing through the through hole 67 shown in FIGS. 9 and 10.

As shown in FIGS. 9 and 10, in the second corner portion 600 of the holder 60, the first non-contact area in which the first adhesive H1 is provided by penetrating the second corner portion 600 in the first direction Z. A through hole 67 that opens at 211 is provided. As shown in FIGS. 15 and 16, in the through hole 67, the opening size S1 of the first opening 671 on one side Z1 of the second corner 600 in the first direction Z is the first direction Z of the second corner 600. Is larger than the opening size S2 of the second opening 672 on the other side Z2.

The through hole 67 communicates with the first hole 676 that is open on one side L1 of the first direction Z of the second corner portion 600 and the second corner portion 600 by communicating with the first hole 676 on the other side Z2 of the first direction Z. And a second hole 677 opened on the other side Z2 in the first direction Z. Here, the inner peripheral surface of the second hole 677 is an inclined surface that gradually reduces the inner diameter toward the one side Z1 in the first direction Z. At least a part of the inner peripheral surface of the first hole 676 in the circumferential direction is a conical inclined surface 678 whose inner diameter increases from the other side Z2 of the first direction Z toward the one side Z1 of the first direction Z. ing.

In the present embodiment, a part of the inner peripheral surface of the first hole 676 is a conical inclined surface 678, and the other part in the circumferential direction is a flat surface portion 679a. Further, the second hole 677 also has a flat surface portion 679b, which is continuous with the flat surface portion 679a at a part of the inner peripheral surface thereof. Therefore, the inner peripheral surface of the through hole 67 is a flat surface portion 679, a part of which extends in the circumferential direction from the opening edge on the other side Z2 in the first direction Z to the opening edge on the one side Z1 in the first direction Z. There is. In the through hole 67, the length of the straight line portion 679c (see FIG. 10) formed by the flat surface portion 679 at the opening edge on the one side Z1 of the first direction Z is equal to the length of the straight surface portion 679 on the other side Z2 of the first direction Z in the first direction Z. It is longer than the length of the straight line portion 679d (see FIG. 9) formed at the opening edge. In the portion of the inner peripheral surface of the through hole 67 other than the flat portion 679, the inner peripheral surface of the first hole 676 is the inner peripheral surface of the second hole 677 between the first hole 676 and the second hole 677. Located radially outside the plane.

(Method of manufacturing actuator 1)
FIG. 17 is a cross-sectional view showing a gap between the wiring board 15 shown in FIG. 5 and the like and the third wall portion 63 of the holder 60.

In this embodiment, the first case member 16, the first yoke 86, the holder 60, and the second case 86 are supported while the first yoke 86 is supported by the support pins (not shown) inserted from the through holes 16b of the first case member 16. When the yoke 87 is stacked in the first direction Z, the through hole 16a of the first case member 16, the cutout 869 of the first yoke 86, the cutout 603 of the holder 60, and the 2 The notch 879 of the yoke 87 is overlapped. Therefore, the first case member 16, the first yoke 86, the holder 60, and the second yoke 87 can be properly stacked.

At that time, the first connecting plate portion 861 of the first yoke 86 is projected toward the other side Z2 in the first direction Z through the first opening 601 of the holder 60, and the second connecting plate portion 862 of the holder 60 is attached. It is projected toward the other side Z2 in the first direction Z through the second opening 602. Therefore, each of the first connecting plate portion 861 and the second connecting plate portion 862 of the first yoke 86 can be connected to the second yoke 87.

In addition, the first viscoelastic member 91 is previously connected to one of the first case member 16 and the first yoke 86 by an adhesive agent, and when the first case member 16 and the first yoke 86 are overlapped with each other, the first case The first viscoelastic member 91 is connected to the other of the member 16 and the first yoke 86 with an adhesive. Further, the second viscoelastic member 92 is previously connected to one of the second case member 17 and the second yoke 87 by an adhesive agent, and when the second case member 17 and the second yoke 87 are stacked, the second case The second viscoelastic member 92 is connected to the other of the member 17 and the second yoke 87 with an adhesive. At that time, the support pin inserted from the through hole 16b is brought into contact with the notch 17b of the second case member 17 to support the second case member 17.

In this manner, when manufacturing the actuator 1, in the present embodiment, the first adhesive H1 is dropped from the through hole 67 in a state where the holder 60 is placed on the first case member 16, and the first adhesive H1 is passed through the through hole 67 to reach the first adhesive H1. The first adhesive H1 is filled in the first non-contact area 211 between the first case member 16 and the holder 60. After that, when the holder 60 is overlaid on the second case member 17, the second adhesive H2 is applied to the fourth region 60t forming the second non-contact region 221 in the holder 60. In the present embodiment, although not shown, the first non-contact area 211 is formed with a notch or a recess for removing air from the first non-contact area 211 when filling the second adhesive H2. There is.

Here, as shown in FIG. 17, between the wiring board 15 shown in FIG. 5 and the like and the third wall portion 63 of the holder 60 from one direction (first side Z, one side Z1) to the other direction (first side Z1). A gap G having a wider gap is provided on the other side Z2) in the one direction Z. Therefore, since the opening width of the gap G is wide on the other side Z2 in the first direction Z, the third adhesive (not shown) can be filled between the wiring board 15 and the third wall portion 63.

In this way, after the adhesive is provided at the predetermined position, it is heated to cure all the uncured adhesives at the same time.

(Main effects of this embodiment)
As described above, in the actuator 1 of the present embodiment, the first support portion 21 where the first corner portion 160 of the first case member 16 and the second corner portion 600 of the holder 60 overlap in the first direction Z has A first non-contact area 211 in which the first corner 160 and the second corner 600 are separated from each other in the first direction Z, and a first contact area in which the first corner 160 and the second corner 600 are in contact with each other in the first direction Z. Since 212 is provided, the area where the first corner portion 160 and the second corner portion 600 contact each other is limited. Therefore, the first corner portion 160 and the second corner portion 600 can be brought into contact with each other in a stable state. Therefore, even if vibration or the like when the movable body 3 is driven is transmitted to the first support portion 21, the chatter noise is unlikely to be generated from the first support portion 21.

In addition, in the second support portion 22 where the third corner portion 170 of the second case member 17 and the second corner portion 600 of the holder 60 overlap in the first direction Z, the second corner portion 600 and the third corner portion 170 are provided. The second non-contact area 221 separated from each other in the first direction Z and the second contact area 222 where the second corner portion 600 and the third corner portion 170 contact each other in the first direction Z are provided. The area where the corner portion 600 and the third corner portion 170 contact each other is limited. Therefore, the second corner portion 600 and the third corner portion 170 can be brought into contact with each other in a stable state. Therefore, even if vibration or the like when the movable body 3 is driven is transmitted to the second support portion 22, the chatter noise is unlikely to be generated from the second support portion 22.

Further, the first contact region 212 is provided so as to surround the first non-contact region 211, and the second contact region 222 is provided so as to surround the second non-contact region 221. Further, the first non-contact area 211 is provided with the first adhesive H1 and the second non-contact area 221 is provided with the second adhesive H2. Therefore, the first corner 160 and the second corner 600 support each other in a stable state, and the second corner 600 and the third corner 170 support each other in a stable state. Therefore, the generation of chatter noise can be effectively suppressed.

In addition, on the end surface of the support body 2, the outer edge portion 16r of the first corner portion 160 and the outer edge portion 60r of the second corner portion 600 face each other via the first gap 24, and the outer edge portion 60p of the second corner portion 600. The outer edge portion 17p of the third corner portion 170 faces the second gap 25. Therefore, chattering noise is less likely to be generated from the end surface of the support. Further, since the first gap 24 and the second gap 25 are bent, it is possible to prevent foreign matter from entering from the outside.

Since the holder 60 is provided with the through hole 67, the holder 60 is placed on the first case member 16 in the step of stacking the first case member 16 and the holder 60 via the first adhesive H1. When the first adhesive H1 is dropped from the through hole 67 in the stacked state, the first adhesive H1 flows out through the through hole 67 between the first case member 16 and the holder 60. Therefore, the first adhesive is applied between the first case member 16 and the holder 60 more than when the first case member 16 and the holder 60 are stacked after the first adhesive H1 is applied to the first case member 16 or the holder 60. The agent H1 can be efficiently provided.

Further, since the opening size of the through hole 67 on the one side Z1 in the first direction Z is larger than the opening size on the other side Z2, the first adhesive H1 is applied from the through hole 67 to the first case member 16 and the holder 60. Spills smoothly between and.

Further, at least a part of the inner peripheral surface of the first hole 676 forming the through hole 67 is a slanted surface 678 whose inner diameter increases from the other side Z2 in the first direction Z toward the one side Z1. There is. Therefore, it is convenient to increase the opening size of the through hole 67 on the one side Z1 of the first direction Z while ensuring the opening size on the other side Z2 of the first direction Z.

In addition, since the inner peripheral surface of the through hole 67 has a flat surface portion 679 in the circumferential direction, when the first adhesive H1 is dropped onto the through hole 67 from the other side Z2 in the first direction Z, When the first adhesive H1 is dropped onto the flat surface portion 679, the first adhesive H1 can be smoothly flown along the flat surface portion 679 and between the first corner portion 160 and the second corner portion 600. The length of the straight line portion 679c (see FIG. 10) formed by the flat surface portion 679 at the opening edge on the one side Z1 of the first direction Z is formed at the opening edge on the other side Z2 of the flat surface portion 679 in the first direction Z. Since it is longer than the length of the straight line portion 679d (see FIG. 9), it is easy to drop the first adhesive H1 on the flat surface portion 679 while avoiding the inclined surface 678. Therefore, the first adhesive H1 can be smoothly discharged along the flat surface portion 679 between the first corner portion 160 and the second corner portion 600.

[Other Embodiments]
In the above-described embodiment, the height difference provided in the first corner portion 160 is used to configure the first non-contact area 211 and the first contact area 212, but the height difference provided in the second corner portion 600 is used. The first non-contact area 211 and the first contact area 212 may be configured. In addition, although the second non-contact area 221 and the second contact area 222 are configured by using the height difference provided in the second corner portion 600, the second non-contact area 221 and the second contact area 222 are formed by using the height difference provided in the third corner portion 170. The contact area 221 and the second contact area 222 may be configured.

Although the two magnets 8 (the first magnet 81 and the second magnet 82) are included in the above-described embodiment, for example, the magnet 8 is arranged only on one side Z1 of the first direction Z with respect to the coil 7. The present invention may be applied to the case where only the second yoke 87 is present on the other side Z2 in the first direction Z.

Although a gel-like member such as a silicone gel is used as the viscoelastic member 9 in the above embodiment, rubber or the like may be used as the viscoelastic member. Further, in the above embodiment, the viscoelastic member 9 is used as the connecting body 90, but an elastic member such as a spring may be used.

In the above embodiment, the coil and the holder are provided on the support body 2 and the magnet and the yoke are provided on the movable body 3. However, the coil and the holder are provided on the movable body 3, and the magnet and the yoke are provided on the support body 2. The present invention may be applied to such cases. In the above embodiment, the present invention is applied to the actuator 1 that drives the movable body 3 only in the second direction X, but the present invention is applied to the actuator 1 that drives the movable body 3 in the second direction X and the third direction Y. You may.

DESCRIPTION OF SYMBOLS 1... Actuator, 2... Support body, 3... Movable body, 6... Magnetic drive circuit, 7... Coil, 8... Magnet, 9... Viscoelastic member, 15... Wiring board, 16... 1st case member, 16s... 1st Region, 16t... Second region, 16u... First bent part, 17... Second case member, 17u... Second bent part, 18... Screw, 21... First support part, 22... Second support part, 24... 1 gap, 25... 2nd gap, 60... Holder, 60p, 60r... Outer edge part, 60s... 3rd area|region, 60t... 4th area|region, 61, 161, 171... 1st wall part, 62, 162, 172... 2 wall part, 63, 163, 173... 3rd wall part, 64, 164, 174... 4th wall part, 65, 165, 175... bottom plate part, 67... through hole, 71... 1st coil, 72... 2nd Coil, 81, 83... First magnet, 82, 84... Second magnet, 86... First yoke, 87... Second yoke, 90... Connection body, 91... First viscoelastic member, 92... Second viscoelastic member , 160... First corner, 170... Third corner, 211... First non-contact area, 212... First contact area, 221... Second non-contact area, 222... Second contact area, 600... Second corner Part, 676... First hole, 677... Second hole, 678... Inclined surface, 679, 679a, 679b... Plane part, 679c, 679d... Straight part, H1... First adhesive, H2... Second adhesive, X ...Second direction, Y...third direction, Z...first direction

Claims (12)

A support,
A movable body,
A connector having at least one of elasticity and viscoelasticity, which is connected to the movable body and the support,
A magnetic drive circuit that moves the movable body relative to the support body;
Equipped with
The support includes a holder that holds one of a coil and a magnet of the magnetic drive circuit, and a first case member that overlaps the holder on one side in a first direction,
A first corner portion near the corner of the first case member and a second corner portion near the corner of the holder overlap in the first direction to form a first support portion,
The first support portion has a first non-contact area in which the first corner portion and the second corner portion are separated from each other in the first direction, and the first corner at a position adjacent to the first non-contact area. And a first contact region where the second corner portion is in contact with the second corner in the first direction. The actuator according to claim 1,
The first contact region is provided so as to surround the first non-contact region. The actuator according to claim 1 or 2,
An actuator, wherein an adhesive is provided in the first non-contact area. The actuator according to any one of claims 1 to 3,
An actuator, wherein an outer edge portion of the first corner portion and an outer edge portion of the second corner portion face each other with a first gap on an end surface of the support body. The actuator according to claim 4,
An actuator, wherein one of the outer edge portion of the first corner portion and one of the outer edge portion of the second corner portion has a first bent portion that bends the first gap into an L shape. The actuator according to any one of claims 1 to 5,
The support includes a second case member that overlaps the holder on the other side in the first direction,
The second corner portion and the third corner portion near the corner of the second case member overlap in the first direction to form a second support portion,
The second support portion has a second non-contact area in which the second corner portion and the third corner portion are separated from each other in the first direction, and the second corner at a position adjacent to the second non-contact area. And a second contact region where the third corner portion is in contact with the third corner portion in the first direction. The actuator according to claim 6,
The actuator is characterized in that the second contact region is provided so as to surround the second non-contact region. The actuator according to claim 6 or 7,
An actuator, wherein an adhesive is provided in the second non-contact area. The actuator according to any one of claims 6 to 8,
An actuator, wherein an outer edge portion of the second corner portion and an outer edge portion of the third corner portion face each other with a second gap on an end surface of the support body. The actuator according to claim 9,
One of the outer edge portion of the second corner portion and the outer edge portion of the third corner portion has a second bent portion that bends the second gap into an L shape. The actuator according to any one of claims 1 to 10,
At least a part of the wall portion extending from the first corner portion of the first case member and the wall portion extending from the second corner portion of the holder are in a non-contact state on the end surface of the support body. An actuator characterized by being. The actuator according to any one of claims 1 to 11,
The coil and the magnet face each other in the first direction,
The magnetic drive circuit moves the movable body relative to the support body in a second direction intersecting with the first direction.