Actuator

Abstract

To reduce affect applied to a contour of an actuator and an amplitude of a movable body due to increase in the size of a coil, and accurately assemble a case.SOLUTION: A support 3 of an actuator 1 includes a first holder member 15 and a second holder member 16 which are made of a resin, a coil 10, and a first plate 11 and a second plate 12 which are made of metal. A first plate 11 is assembled on a first coil holding part 151 of the first holder member 15 and a second coil holding part 161 of the second holder member 16 from a Z1 side, a coil 10 is arranged between the first coil holding part 151 and the second coil holding part 161, a center hole 10c of the coil 10 is filled with an adhesive, and the second plate 12 is assembled thereon from a Z2 side. A case 2 is positioned to a first side plate part 152 of the first holder member 15 and a second side plate part 162 of the second holder member 16 so as to be brought into contact therewith in a Z direction.SELECTED DRAWING: Figure 7

Description

[Technical Field]

[0001] The present invention relates to an actuator that vibrates a movable body. [Background technology]

[0002] Patent Document 1 discloses an actuator that includes a movable body with a magnet and a support body with a coil, and that vibrates the movable body relative to the support body by passing a drive current through the coil. This type of actuator uses an elastic or viscoelastic body as a connector that connects the support body and the movable body. When the movable body is vibrated, a reaction force corresponding to the vibration of the movable body is applied to the support body via the connector. As a result, a user who touches the support body can feel the vibration.

[0003] In the actuator of Patent Document 1, the support includes a coil holder. The coil is an air-core coil and is placed in a coil placement hole provided in the plate portion of the coil holder. A metal plate is attached to the coil holder so as to cover both sides of the plate portion and the coil. The movable body includes a first yoke facing the coil from one side and a second yoke facing the coil from the other side, and magnets are fixed to the first yoke and the second yoke, respectively. A connecting body connects the plate and the yoke. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Publication No. 2020-102901 Summary of the Invention [Problem to be solved by the invention]

[0005] In actuators equipped with magnetic drive mechanisms, there is a demand for larger coils to improve thrust. However, increasing the coil size poses a problem of increasing the actuator's external dimensions. For example, in the configuration of Patent Document 1, each part of the resin coil holder must be thicker than a certain thickness to ensure strength. Therefore, there is a limit to how thin the resin portion extending along the long side of the coil can be, making it difficult to reduce the width of the plate portion in which the coil placement hole is provided. Therefore, it is difficult to increase the coil size without affecting the actuator's external dimensions or the amplitude of the movable body.

[0006] Therefore, a structure has been proposed in which the coil is fixed directly to a metal plate without using a resin coil holder. However, when a coil set is formed by a metal plate and a coil without using a resin coil holder, it is difficult to accurately position the case because a positioning structure cannot be provided on the resin coil holder as in the past.

[0007] In view of the above problems, the object of the present invention is to propose a configuration that reduces the effect of an increased coil size on the outer shape of the actuator and the amplitude of the movable body, and that allows the case to be assembled with high precision. [Means for solving the problem]

[0008] In order to solve the above-mentioned problems, an actuator of the present invention includes a movable body, a support having a case that houses the movable body, a connector connected to the movable body and the support, a coil, and a magnet that faces the coil in a first direction, and a magnetic drive circuit that vibrates the movable body relative to the support in a second direction that intersects with the first direction, wherein the support includes a first coil holding part that is arranged on one side of the coil in a third direction that intersects with the first direction and the second direction, and a connecting member that connects the movable body and the support to a first coil holding part on one side of the third direction. a first holder member made of resin having a first side plate portion extending in the first direction from an end of the first holder member made of resin on the other side in the third direction with respect to the coil, a second holder member made of resin having a second side plate portion extending in the first direction from an end of the second coil holding portion on the other side in the third direction with respect to the coil, a first plate made of metal overlapping the coil, the first coil holding portion, and the second coil holding portion from one side in the first direction, and a second plate made of metal overlapping the coil, the first coil holding portion, and the second coil holding portion from the other side in the first direction, wherein the first plate and the second plate are positioned with respect to the first coil holding portion and the second coil holding portion, and the case is positioned with respect to the first side plate portion and the second side plate portion.

[0009] According to the present invention, a coil assembly is constructed by arranging a first resin holder member having a first coil holding portion and a second resin holder member having a second coil holding portion on both sides of the coil in the third direction, and covering the coil, the first coil holding portion, and the second coil holding portion from both sides in the first direction with a first metal plate and a second metal plate. By dividing the coil holder into two members in this way, it is possible to configure the coil so that both sides in the second direction of the coil, which were conventionally surrounded by resin, are not surrounded by resin. Therefore, the coil can be enlarged without increasing the size of the coil assembly in the second direction. Furthermore, the case, the first plate, and the second plate are all positioned relative to the first and second holder members. Therefore, the case can be positioned with high precision.

[0010] In the present invention, the first plate preferably includes a first plate portion overlapping the coil, the first coil holding portion, and the second coil holding portion from one side in the first direction, and a first bent portion bending from an end of the first plate portion in the second direction to the other side in the first direction. The second plate preferably includes a second plate portion overlapping the coil, the first coil holding portion, and the second coil holding portion from the other side in the first direction, and a second bent portion bending from an end of the second plate portion in the second direction to one side in the first direction. This preferably increases the rigidity of the first plate and the second plate against bending in the third direction. Furthermore, since the first bent portion and the second bent portion can cover the side of the coil in the vibration direction (second direction), the coil can be prevented from colliding with a movable body and being damaged.

[0011] In the present invention, it is preferable that the first plate includes first fixing portions bent from both edges in the second direction of the first plate portion at both ends in the third direction to the other side in the first direction, the second plate includes second fixing portions bent from both edges in the second direction of the second plate portion at both ends in the third direction to one side in the first direction, and claw portions are provided at four locations on both side surfaces in the second direction of the first coil holding portion and both side surfaces in the second direction of the second coil holding portion, first notches provided in the first fixing portions and second notches provided in the second fixing portions overlap in the second direction at four locations on both sides in the second direction of the first coil holding portion and both sides in the second direction of the second coil holding portion, and the claw portions are engaged with the first notches and the second notches. In this way, the first coil holding portion and the second coil holding portion will not come out from between the first plate and the second plate, and the first holder member and the second holder member are positioned in the third direction. In addition, the first plate and the second plate can be positioned in the third direction via the claws. Furthermore, the coil set can be assembled without using welding or fixing parts.

[0012] In the present invention, it is preferable that the claw portion provided on the first coil holding portion has a tapered shape in which the protruding dimension in the second direction increases toward one side in the third direction, and the claw portion provided on the second coil holding portion has a tapered shape in which the protruding dimension in the second direction increases toward the other side in the third direction. In this way, the first plate and the second plate are assembled first, and the inclined surfaces provided on the claw portions allow the first plate to be fixed to the second plate. It is possible to adopt an assembly method in which the first fixing portion of the first plate and the second fixing portion of the second plate are pressed and bent, while the first coil holding portion and the second coil holding portion are inserted between the first plate and the second plate, thereby assembling the coil set.

[0013] In the present invention, it is preferable that a first bent portion extending toward one side in the first direction and then bending toward the center of the first plate portion in the second direction be provided on an edge of the first opening provided in the first fixing portion on the other side in the first direction, and a second bent portion extending toward the other side in the first direction and then bending toward the center of the second plate portion in the second direction be provided on an edge of the second opening provided in the second fixing portion on the one side in the first direction, and the second bent portion abuts against the first bent portion from the other side in the first direction, thereby locking the second plate relative to the first plate in the first direction. This allows assembly by positioning the first and second plates so that the first and second openings overlap, and then externally pressing the edges of the first and second openings with a jig to form the first and second bent portions. This facilitates assembly of the coil assembly. Furthermore, because such a fixing structure can be achieved simply by forming openings at predetermined positions in the plates, component manufacturing is easy.

[0014] In the present invention, it is preferable that the first plate includes a first fixing portion bent from both edges in the second direction of the first plate portion at both ends in the third direction to the other side in the first direction, the second plate includes a second fixing portion bent from both edges in the second direction of the second plate portion at both ends in the third direction to one side in the first direction, a first bending portion is provided at the edge on the other side in the first direction of a first opening provided in the first fixing portion, the first bending portion extending to one side in the first direction and then bending toward the center of the first plate portion in the second direction, the second fixing portion overlaps the first fixing portion in the second direction, and a second bending portion is provided at the edge on one side in the first direction of a second opening provided in the second fixing portion, the second bending portion extending to the other side in the first direction and then bending toward the center of the second plate portion in the second direction, and the second bending portion abuts against the first bending portion from the other side in the first direction, thereby locking the second plate to the first plate in the first direction. In this way, as described above, the first plate and the second plate can be positioned so that the first opening and the second opening overlap, and then the edges of the first opening and the second opening are pressed from the outside with a jig to form the first bent portion and the second bent portion. This simplifies the assembly of the coil assembly. Furthermore, because this fixing structure can be achieved simply by forming openings in the plates at predetermined positions, the parts can be easily manufactured.

[0015] In the present invention, it is preferable that the first plate includes first rising portions extending from both edges of the first plate portion in the third direction to one side in the first direction, and the second plate includes second rising portions extending from both edges of the second plate portion in the third direction to the other side in the first direction. This can increase the rigidity of the first plate and the second plate against bending in the second direction.

[0016] In the present invention, the movable body includes a yoke that holds the magnet, the yoke including a first opposing portion that faces the first plate from one side in the first direction, a second opposing portion that faces the second plate from the other side in the first direction, and a pair of connecting portions disposed on both sides of the coil in the second direction, and the first side plate portion preferably faces the yoke from one side in the third direction, and the second side plate portion preferably faces the yoke from the other side in the third direction. In this way, when an impact such as a fall is applied, the first side plate portion and the second side plate portion function as stoppers that restrict movement of the movable body in the third direction. Therefore, damage to the actuator due to an impact such as a fall can be suppressed.

[0017] In the present invention, the connecting body is a first connecting member that connects the first opposing portion and the first plate. It is preferable to provide a connecting body and a second connecting body that connects the second opposing portion and the second plate. In this way, the connecting body can be arranged inside the yoke to connect the coil set and the yoke. Therefore, there is no need to secure space for arranging the connecting body in the gap between the case and the yoke, and the dimension of the actuator in the first direction can be reduced. [Effects of the Invention]

[0018] According to the present invention, a coil assembly is constructed by arranging a first resin holder member having a first coil holding portion and a second resin holder member having a second coil holding portion on both sides of the coil in the third direction, and covering the coil, the first coil holding portion, and the second coil holding portion from both sides in the first direction with a first metal plate and a second metal plate. By dividing the coil holder into two members in this way, it is possible to configure the coil so that both sides in the second direction of the coil, which were conventionally surrounded by resin, are not surrounded by resin. Therefore, the coil can be enlarged without increasing the size of the coil assembly in the second direction. Furthermore, the case, the first plate, and the second plate are all positioned relative to the first and second holder members. Therefore, the case can be positioned with high precision. [Brief explanation of the drawings]

[0019] [Figure 1] 1 is a perspective view of an actuator to which the present invention is applied, as viewed from the Z2 direction and the Z1 direction. [Figure 2] 2 is a cross-sectional view of the actuator taken along the longitudinal direction (a cross-sectional view taken along the line AA in FIG. 1). [Figure 3] 2 is a cross-sectional view of the actuator taken in a direction perpendicular to the longitudinal direction (a cross-sectional view taken at position BB in FIG. 1). [Figure 4] FIG. 10 is an exploded perspective view of the movable body as seen from the Z2 direction. [Figure 5] FIG. 10 is an exploded perspective view of the movable body as seen from the Z1 direction. [Figure 6] FIG. [Figure 7] FIG. [Figure 8] 1 is an exploded perspective view of an assembly in which a first holder member, a second holder member, a coil, and a first plate are assembled, and a second plate. FIG. [Figure 9] FIG. 2 is a plan view of an assembly in which the first holder member, the second holder member, the coil, and the first plate are assembled. [Figure 10] FIG. 10 is an explanatory diagram of a fixing structure between the first plate and the second plate, and is a perspective view showing a state before the first protruding portion and the second protruding portion are bent. [Figure 11] FIG. 10 is an explanatory diagram of the fixing structure of the first plate and the second plate, and is a perspective view showing a state in which the first protrusion and the second protrusion are bent in the X direction and abutted in the Z direction. DETAILED DESCRIPTION OF THE INVENTION

[0020] Hereinafter, an embodiment of an actuator to which the present invention is applied will be described with reference to the drawings.

[0021] (Overall composition) Fig. 1(a) is a perspective view of an actuator 1 to which the present invention is applied, as seen from the Z2 direction. Fig. 1(b) is a perspective view of an actuator 1 to which the present invention is applied, as seen from the Z1 direction. Fig. 2 is a cross-sectional view of the actuator 1 when cut in the longitudinal direction, taken at position AA in Fig. 1. Fig. 3 is a cross-sectional view of the actuator 1 when cut in a direction perpendicular to the longitudinal direction, taken at position BB in Fig. 1.

[0022] The actuator 1 is used as a tactile device that transmits information by vibration. As shown in Figures 1(a) and 1(b), the outer shape of the actuator 1 is a rectangular parallelepiped. The actuator 1 generates vibrations in the short direction of its outer shape. In the following explanation, the short direction in which vibrations occur is referred to as the X direction (second direction), and the longitudinal direction of the actuator 1, which is perpendicular to the X direction, is referred to as the X direction (second direction). The direction perpendicular to the X and Y directions is defined as the Y direction (third direction), and the thickness direction (height direction) of the actuator 1 is defined as the Z direction (first direction). One side of the X direction is defined as the X1 direction, and the other side is defined as the X2 direction. One side of the Y direction is defined as the Y1 direction, and the other side is defined as the Y2 direction. One side of the Z direction is defined as the Z1 direction, and the other side is defined as the Z2 direction.

[0023] 1, 2, and 3, the actuator 1 has a support body 3 equipped with a case 2 that defines the outer shape, and a movable body 5 housed inside the case 2. The actuator 1 also has a connector 4 that connects the support body 3 and the movable body 5, and a magnetic drive circuit 6 (see FIGS. 2 and 3) that moves the movable body 5 relative to the support body 3 in the X direction.

[0024] (Support) As shown in FIGS. 2 and 3, the support 3 includes a coil 10, a first plate 11 stacked on the coil 10 in the Z1 direction, and a second plate 12 stacked on the coil 10 in the Z2 direction. The first plate 11 and the second plate 12 are made of a nonmagnetic metal. The coil 10 is located at the center of the case 2 in the Z direction. The coil 10 is a flat, air-core coil with its thickness oriented in the Z direction. The coil 10 has an elliptical shape that is long in the Y direction and includes a pair of long sides 10a and 10b extending parallel to the Y direction (see FIGS. 3 and 7). A center hole 10c extending in the Y direction is provided between the pair of long sides 10a and 10b. The coil 10 also includes an arc portion 10d connecting the Y1-side ends of the long sides 10a and 10b and an arc portion 10e connecting the Y2-side ends of the long sides 10a and 10b (see FIGS. 7 and 8).

[0025] As shown in FIG. 2 , the support 3 includes a first holder member 15 disposed on the Y1 side of the coil 10 and a second holder member 16 disposed on the Y12 side of the coil 10. The first holder member 15 and the second holder member 16 are made of resin. The first holder member 15 includes a first coil holding portion 151 disposed between the first plate 11 and the second plate 12 and a first side plate portion 152 extending in the Z1 and Z2 directions from the Y1-side end of the first coil holding portion 151. The second holder member 16 includes a second coil holding portion 161 disposed between the first plate 11 and the second plate 12 and a second side plate portion 162 extending in the Z1 and Z2 directions from the Y1-side end of the second coil holding portion 161. The coil 10 is disposed between the first coil holding portion 151 and the second coil holding portion 161.

[0026] A power supply board 14 is fixed to the first holder member 15. In this embodiment, the power supply board 14 is a flexible printed circuit board. However, the power supply board 14 may also be a rigid board. The coil 10 has two coil wires (not shown) drawn out in the Y1 direction, and the coil wires are connected to a wiring pattern provided on the surface of the power supply board 14. Power is supplied to the coil 10 via the power supply board 14.

[0027] When assembling the actuator 1, the coil 10, the first plate 11, the second plate 12, the first holder member 15, and the second holder member 16 are assembled to form the coil set 30 (see FIG. 5 ). Then, the movable body 5 is assembled to surround the coil set 30, and the movable body 5 and the coil set 30 are connected by the connector 4. Thereafter, the coil set 30 and the movable body 5 are housed in the case 2.

[0028] 1, 2, and 3, the case 2 includes a first case member 31 and a second case member 32 stacked in the Z direction. The first case member 31 is assembled to the first holder member 15 and the second holder member 16 from the Z1 direction. The second case member 32 is assembled to the first holder member 15 and the second holder member 16 from the Z2 direction.

[0029] (movable body) The movable body 5 includes a magnet 7 and a yoke 8. As shown in FIGS. The coil 10 faces the coil 10 in the Z direction. The coil 10 and the magnet 7 constitute a magnetic drive circuit 6. The movable body 5 is equipped with a first magnet 71 and a second magnet 72 as the magnets 7. The first magnet 71 is located in the Z1 direction of the coil 10. The second magnet 72 is located in the Z2 direction of the coil 10. The first magnet 71 and the second magnet 72 are polarized in two in the X direction. As shown in FIG. 3, when the movable body 5 and the support body 3 are assembled, the first magnet 71 faces the long sides 10a, 10b of the coil 10 in the Z1 direction, and the second magnet 72 faces the long sides 10a, 10b of the coil 10 in the Z2 direction.

[0030] FIG. 4 is an exploded perspective view of the movable body 5 as viewed from the Z2 direction. FIG. 5 is an exploded perspective view of the movable body 5 as viewed from the Z1 direction. In this embodiment, the yoke 8 is made of a magnetic material. As shown in FIGS. 2 to 5, the yoke 8 includes a first yoke 81 and a second yoke 82. The first yoke 81 includes a first inner member 83 that overlaps the coil 10 from the Z1 direction, and a first outer member 84 that overlaps the first inner member 83 from the Z1 direction. The second yoke 82 includes a second inner member 85 that overlaps the coil 10 from the Z1 direction, and a second outer member 86 that overlaps the second inner member 85 from the Z1 direction.

[0031] 4 and 5, the first outer member 84 includes a first flat plate portion 841 that is long in the Y direction, and a pair of first connecting plate portions 842 that extend in the Z2 direction from the Y-direction central portions of both ends of the first flat plate portion 841 in the X direction. A pair of connector fixing portions 843 is provided at both ends of the first flat plate portion 841 in the Y direction, and the pair of connector fixing portions 843 is disposed on both sides of the first connecting plate portion 842 in the Y direction. Each connector fixing portion 843 has a rising portion 844 that is bent in the Z2 direction at both ends in the X direction. As shown in FIG. 2, each of the pair of connector fixing portions 843 is connected to the first plate 11 via a first connector 9A.

[0032] The first inner member 83 includes a magnet fixing portion 831 that is long in the Y direction, and a pair of rising portions 832 that are bent in the Z2 direction from both ends of the magnet fixing portion 831 in the X direction. The magnet fixing portion 831 is fixed to the Z1-side surface of the first flat plate portion 841. That is, in this embodiment, the first flat plate portion 841 and the magnet fixing portion 831 form a first opposing portion that faces the first plate 11 from the Z1 direction. As shown in FIG. 3 , the pair of rising portions 832 are disposed inside the pair of first connecting plate portions 842, and surround both sides in the X direction of the first magnet 71 fixed to the magnet fixing portion 831.

[0033] 4 and 5, the first inner member 83 has a pair of notches 833 formed by cutting out both ends of the magnet fixing portion 831 in the Y direction toward the center in the Y direction. Each notch 833 has a rectangular shape that is long in the X direction, and is provided in the center in the Y direction of the magnet fixing portion 831. As shown in FIG. 2, the first connecting body 9A arranged on the Y1 side of the first magnet 71 and the first connecting body 9A arranged on the Y2 side of the first magnet 71 are each arranged in the notch 833.

[0034] 4 and 5, the second outer member 86 includes a second flat plate portion 861 that is long in the Y direction, and a pair of second connecting plate portions 862 that extend in the Z1 direction from the Y-direction central portions of both ends of the second flat plate portion 861 in the X direction. A pair of connector fixing portions 863 are provided at both ends of the second connecting plate portion 862 in the Y direction. Each connector fixing portion 863 has a rising portion 864 that is bent in the Z1 direction at both ends in the X direction. As shown in FIG. 2, each of the pair of connector fixing portions 863 is connected to the second plate 12 via a second connector 9B.

[0035] The second inner member 85 includes a magnet fixing portion 851 that is long in the Y direction, and a pair of rising portions 852 that are bent in the Z2 direction from both ends of the magnet fixing portion 851 in the X direction. The magnet fixing portion 851 is fixed to the Z2-side surface of the second flat plate portion 861. That is, in this embodiment, the second flat plate portion 861 and the magnet fixing portion 851 form a second opposing portion that faces the second plate 12 from the Z2 direction. As shown in FIG. 3, the pair of rising portions 852 are fixed to the pair of second connecting plate portions 862 and surrounds both sides in the X direction of the second magnet 71 fixed to the magnet fixing portion 851.

[0036] 4 and 5, the second inner member 85 has a pair of notches 853 formed by cutting out both ends of the magnet fixing portion 851 in the Y direction toward the center in the Y direction. Each notch 853 has a rectangular shape that is long in the X direction, and is provided in the center in the Y direction of the magnet fixing portion 851. As shown in FIG. 2, the second connecting body 9B arranged on the Y1 side of the second magnet 71 and the second connecting body 9B arranged on the Y2 side of the second magnet 71 are each arranged in the notch 853.

[0037] The first yoke 81 is assembled by welding a first inner member 83 and a first outer member 84 together. The second yoke 82 is assembled by welding a second inner member 85 and a second outer member 86 together. The yoke 8 is assembled into a shape that surrounds the outer periphery of the first plate 11 and the second plate 12 that are layered on the coil 10 by press-fitting and fixing a pair of second connecting plate portions 862 of the second yoke 82 inside a pair of first connecting plate portions 842 of the first yoke 81.

[0038] (connector) As shown in FIG. 2, the connecting body 4 includes a first connecting body 9A and a second connecting body 9B. The first connecting body 9A and the second connecting body 9B are rectangular parallelepipeds elongated in the X direction. The first connecting body 9A is located on the Z1 side of the coil 10. The second connecting body 9B is located on the Z2 side of the coil 10. The first connecting body 9A is arranged in two locations, on the Y1 and Y2 sides of the first magnet 71, and is made up of two members of the same shape. The second connecting body 9B is arranged in two locations, on the Y1 and Y2 sides of the second magnet 72, and is made up of two members of the same shape. The first connecting body 9A and the second connecting body 9B each have at least one of elasticity and viscoelasticity.

[0039] The first connector 9A is disposed between the first yoke 81 and the first plate 11. The first connector 9A is disposed in two notches 833 provided at the Y1-direction end portion of the first yoke 81 and the Y2-direction end portion of the first yoke 81. The first connector 9A on the Y1 side is sandwiched between a connector fixing portion 843 provided at the Y1-direction end of the first outer member 84 and the Y1-direction end portion of the first plate 11. The first connector 9A on the Y2 side is sandwiched between the connector fixing portion 843 provided at the Y2-direction end of the first outer member 84 and the Y2-direction end portion of the first plate 11 at two locations. The first connector 9A is compressed in the Z direction between the connector fixing portion 843 and the first plate 11.

[0040] The second connector 9B is disposed between the second yoke 82 and the second plate 12. The second connector 9B is disposed in two notches 853 provided at the Y1-direction end portion of the second yoke 82 and the Y2-direction end portion of the second yoke 82. The second connector 9B on the Y1 side is sandwiched between a connector fixing portion 863 provided at the Y1-direction end of the second outer member 86 and the Y1-direction end portion of the second plate 12. The second connector 9B on the Y2 side is sandwiched between the connector fixing portion 863 provided at the Y2-direction end of the second outer member 86 and the Y2-direction end portion of the second plate 12 at two locations. The second connector 9B is compressed in the Z direction between the connector fixing portion 863 and the second plate 12.

[0041] In this embodiment, the first connecting body 9A and the second connecting body 9B are gel-like members made of silicone gel. Silicone gel is a viscoelastic material whose spring constant when deforming in the expansion / contraction direction is about three times the spring constant when deforming in the shear direction. When a viscoelastic material deforms in a direction intersecting the thickness direction (shear direction), the deformation is in the direction of extension due to tension, and therefore the material has deformation characteristics in which the linear component is greater than the nonlinear component. Furthermore, when compressed and deformed in the thickness direction, the material has expansion / contraction characteristics in which the nonlinear component is greater than the linear component, while when stretched and stretched in the thickness direction, the material has expansion / contraction characteristics in which the linear component is greater than the nonlinear component.

[0042] Alternatively, various rubber materials such as natural rubber, diene rubber (e.g., styrene-butadiene rubber, isoprene rubber, butadiene rubber, chloroprene rubber, acrylonitrile-butadiene rubber, etc.), non-diene rubber (e.g., butyl rubber, ethylene-propylene rubber, ethylene-propylene-diene rubber, urethane rubber, silicone rubber, fluororubber, etc.), thermoplastic elastomer, and modified materials thereof may be used for the first connector 9A and the second connector 9B.

[0043] (Coil assembly) FIG. 6 is a perspective view of the coil set 30. FIG. 7 is an exploded perspective view of the coil set 30. FIG. 8 is an exploded perspective view of the second plate 12 and an assembly in which the first holder member 15, the second holder member 16, the coil 10, and the first plate 11 are assembled, and is a perspective view showing a state in the middle of assembling the coil set 30. FIG. 9 is a plan view of the assembly in which the first holder member 15, the second holder member 16, the coil 10, and the first plate 11 are assembled. As described above, the support body 3 includes the coil set 30 in which the first holder member 15, the second holder member 16, the coil 10, the first plate 11, and the second plate 12 are assembled.

[0044] The coil set 30 is assembled in the following procedure. First, the first plate 11 is attached to the first coil holding portion 151 of the first holder member 15 and the second coil holding portion 161 of the second holder member 16 from the Z1 side. Next, the coil 10 is placed between the first coil holding portion 151 and the second coil holding portion 161, and the power supply board 14 is fixed to the first holder member 15 (see FIGS. 8 and 9), and the power supply board 14 is connected to the coil 10. Thereafter, an adhesive is filled into the center hole 10c of the coil 10, and the second plate 12 is attached from the Z2 side. As shown in FIGS. 2 and 3, an adhesive layer 13 is formed in the center hole 10c of the coil 10 by hardening the adhesive. This completes the coil set 30.

[0045] (Holder component) 7 and 8, the first holder member 15 has an arc-shaped recess 153 provided at the Y2-direction end of the first coil holding portion 151. The arc portion 10d provided at the Y1-direction end of the coil 10 is disposed in the arc-shaped recess 153. In the first holder member 15, a first recess 154 recessed in the Z1 direction is provided in the central portions in the X direction of the first coil holding portion 151 and the first side plate portion 152.

[0046] The power supply board 14 includes a first board portion 141 that extends in the Y direction in the first recess 154, and a second board portion 142 that bends in the Z1 direction from the first board portion 141 and extends in the Z direction along the first side plate portion 152. The first board portion 141 and the second board portion 142 are fixed to the first coil holding portion 151 and the first side plate portion 152, respectively, via a reinforcing plate 143 (see FIG. 2).

[0047] The second holder member 16 has an arc-shaped recess 163 provided at the Y1-direction end of the second coil holding portion 161. The arc-shaped recess 163 accommodates the arc-shaped portion 10e provided at the Y2-direction end of the coil 10. The second holder member 16 has a second recess 164 recessed in the Z1 direction provided at the X-direction central portions of the second coil holding portion 161 and the second side plate portion 162. In this embodiment, the positions of the coil 10 in the X and Y directions are regulated by the arc-shaped recess 153 of the first coil holding portion 151 and the arc-shaped recess 163 of the second coil holding portion 161.

[0048] The first coil holding portion 151 is provided with receiving surfaces 155 extending in the Y direction on both sides of the first recess 154 in the X direction. The second coil holding portion 161 is provided with receiving surfaces 165 extending in the Y direction on both sides of the second recess 164 in the X direction. The second plate 12 abuts against the coil 10 from the Z2 direction. In this embodiment, the receiving surfaces 155 and 165 are positioned further in the Z2 direction than the surface of the coil 10 in the Z2 direction.

[0049] In the first holder member 15, the first side plate 152 has a first protrusion 156 protruding from its side surface in the Y1 direction. The first protrusion 156 extends in the X direction on both sides of the first recess 154 in the X direction. In the second holder member 16, the second side plate 162 has a second protrusion 166 protruding from its side surface in the Y1 direction. The second protrusion 166 extends in the X direction on both sides of the second recess 164 in the X direction. As shown in FIGS. 1(a) and 1(b), when assembling the case 2, the first case member 31 abuts against the first protrusion 156 and the second protrusion 166 from the Z1 direction. In addition, the second case member 32 abuts against the first protrusion 156 and the second protrusion 166 from the Z2 direction. Therefore, the first protrusion 156 of the first side plate portion 152 and the second protrusion 166 of the second side plate portion 162 function as positioning portions that position the case 2 in the Z direction.

[0050] 2, the first side plate portion 152 faces the yoke 8 from the Y1 direction. The second side plate portion 162 faces the yoke 8 from the Y2 direction. Therefore, the first side plate portion 152 and the second side plate portion 162 restrict movement of the movable body 5 in the Y direction when an impact is applied to the actuator 1 due to a drop or the like.

[0051] (plate) 2, 3, and 7, the first plate 11 includes a first plate portion 111 that overlaps the coil 10 from the Z1 side, and first bent portions 112 that are bent in the Z2 direction from both ends of the first plate portion 111 in the X direction. The first bent portions 112 are provided in the center of the first plate 11 in the Y direction, and first fixed portions 113 that are bent in the Z2 direction from the first plate portion 111 are provided on the Y1 and Y2 sides of each first bent portion 112. Furthermore, first bent portions 114 that are bent in the Z1 direction are provided on both edges of the first plate portion 111 in the Y direction.

[0052] 2, 3, and 7, the second plate 12 includes a second plate portion 121 that overlaps the coil 10 from the Z2 side, and second bent portions 122 that are bent in the Z1 direction from both ends of the second plate portion 121 in the X direction. The second bent portions 122 are provided in the center of the second plate 12 in the Y direction, and second fixing portions 123 that are bent in the Z1 direction from the second plate portion 121 are provided on the Y1 and Y2 sides of each second bent portion 122. Furthermore, second bent portions 124 that are bent in the Z2 direction are provided on both edges of the second plate portion 121 in the Y direction.

[0053] 7, the first fixing portion 113 of the first plate 11 and the second fixing portion 123 of the second plate 12 have substantially the same height in the Z direction and substantially the same length and position in the Y direction. On the other hand, the first bent portion 112 of the first plate 11 and the second bent portion 122 of the second plate 12 have heights in the Z direction that are shorter than the first fixing portion 113 and the second fixing portion 123. In the second plate 12, the second fixing portion 123 is continuous with both ends of the second bent portion 122 in the Y direction. On the other hand, in the first plate 11, the positions of the first fixing portion 113 and the first bent portion 112 in the X direction are different, and the first fixing portion 113 is positioned closer to the center of the first plate 11 in the X direction than the first bent portion 112 (see FIG. 9).

[0054] 6, when the first plate 11 and the second plate 12 are assembled to the first coil holding portion 151 and the second coil holding portion 161 from both sides in the Z direction, the first bent portion 112 of the first plate 11 is disposed between the two second fixing portions 123 provided at both ends of the second plate 12 in the Y direction, and the tip of the first bent portion 112 and the tip of the second bent portion 122 face each other in the Z direction. As a result, as shown in FIG. 3, the first bent portion 112 and the second bent portion 122 cover the long side portions 10a, 10b of the coil 10. Note that in this embodiment, there are gaps in the X direction between the coil 10 and the first bent portion 112 and the second bent portion 122, but the gaps are not formed between the coil 10 and the first bent portion 112 or the second bent portion 122. 0 and the first bent portion 112 and the second bent portion 122 may be in contact with each other in the X direction.

[0055] At both ends in the Y direction of first plate 11 and second plate 12, second fixed portion 123 of second plate 12 overlaps the outside of first fixed portion 113 of first plate 11 at four locations on both sides in the X direction of arc portion 10d of coil 10 and on both sides in the X direction of arc portion 10e. As described above, first fixed portion 113 is disposed closer to the center in the X direction of first plate 11 than first bent portion 112, but first fixed portion 113 does not come into contact with coil 10 because it is disposed on the outside of arc portions 10d and 10e in the X direction rather than on the outside of long side portions 10a and 10b in the X direction.

[0056] 7, the first fixing portions 113 provided at four locations on the first plate 11 each have a rectangular first cutout 115 cut out in the Z1 direction and a first opening 116 extending to a corner where the first fixing portion 113 and the first plate portion 111 are connected, and these first openings 116 are arranged side by side in the Y direction. A first protrusion 117 extending in the Z1 direction is provided at the center of the edge of the first opening 116 in the Z2 direction. Furthermore, the second fixing portions 123 provided at four locations on the second plate 12 each have a rectangular second cutout 125 cut out in the Z2 direction and a second opening 126 extending to a corner where the second fixing portion 123 and the second plate portion 121 are connected, and these second openings 126 are arranged side by side in the Y direction. A second protrusion 127 extending in the Z2 direction is provided at the center of the edge of the second opening 126 in the Z1 direction.

[0057] 6, when the first plate 11 and the second plate 12 are assembled to the first coil holding portion 151 and the second coil holding portion 161 from both sides in the Z direction, the first notch 115 of the first fixing portion 113 and the second notch 125 of the second fixing portion 123 overlap. As shown in FIGS. 7 and 9, claw portions 157 protrude from both side surfaces of the first coil holding portion 151 in the X direction, and claw portions 167 protrude from both side surfaces of the second coil holding portion 161 in the X direction. The two claw portions 157 fit into the first notch 115 and the second notch 125, respectively, and the Y1-side end faces of the claw portions 157 abut against the Y1-side edges of the first notch 115 and the second notch 125. Similarly, the two claw portions 167 are fitted into the first notch portion 115 and the second notch portion 125, respectively, and the Y2-side end faces of the claw portions 167 abut against the Y2-side edges of the first notch portion 115 and the second notch portion 125. This prevents the first coil holding portion 151 and the second coil holding portion 161 from slipping out from between the first plate 11 and the second plate 12, and the first plate 11 and the second plate 12 hold the first coil holding portion 151 and the second coil holding portion 161 at positions spaced apart in the Y direction.

[0058] The claws 157 provided on the first coil holding portion 151 have a tapered shape such that the protruding dimension in the X direction increases toward the Y1 direction. Therefore, it is also possible to first assemble the first plate 11 and the second plate 12 in a state where they are overlapped in the Z direction with respect to the coil 10, and then insert the first coil holding portion 151 between the first plate portion 111 and the second plate portion 121 from the Y1 direction. In this case, because the side surfaces of the claws 157 in the X direction are inclined, the first coil holding portion 151 can be inserted while the first fixing portion 113 and the second fixing portion 123 are bent in the X direction along the inclined surfaces of the claws 157, and the claws 157 can be engaged with the first notch portions 115 and the second notch portions 125.

[0059] Similarly, the claws 167 provided on the second coil holding portion 161 have a tapered shape in which the protruding dimension in the X direction increases toward the Y2 direction. Therefore, it is also possible to first assemble the first plate 11 and the second plate 12 in a state in which they are overlapped in the Z direction with respect to the coil 10, and then assemble the second coil holding portion 161 by inserting it between the first plate portion 111 and the second plate portion 121 from the Y2 direction. In this case, since the side surfaces of the claws 167 in the X direction are inclined, the second coil holding portion 161 is inserted while bending the first fixing portion 113 and the second fixing portion 123 in the X direction along the inclined surfaces of the claws 167, and then the claws 167 are inserted into the first notches 115. And it can be locked into the second notch portion 125.

[0060] 10 and 11 are explanatory diagrams of the fixing structure of the first plate 11 and the second plate 12. FIG. 10 is a perspective view showing a state before the first protrusion 117 and the second protrusion 127 are bent. FIG. 11 is a perspective view showing a state in which the first protrusion 117 and the second protrusion 127 are bent in the X direction and abutted in the Z direction. As shown in FIG. 7, before the first plate 11 and the second plate 12 are assembled, the first protrusion 117 and the second protrusion 127 are not bent and extend in the Z direction. As shown in FIG. 6, when the first plate 11 and the second plate 12 are assembled to the first holder member 15 and the second holder member 16 from both sides in the Z direction, the four first fixing portions 113 overlap with the second fixing portions 123.

[0061] 10, first opening 116 of first fixing portion 113 and second opening 126 of second fixing portion 123 overlap, and first protruding portion 117 and second protruding portion 127 overlap. By pressing the overlapping portion of first protruding portion 117 and second protruding portion 127 inward with a jig, as shown in FIG. 11, a first bent portion 118 is formed by bending the tip of first protruding portion 117 in the X direction, and a second bent portion 128 is formed by bending the tip of second protruding portion 127 in the X direction, and a state is created in which first bent portion 118 and second bent portion 128 abut in the Z direction. As a result, first plate 11 and second plate 12 are locked in the Z direction, and second plate 12 will not come off from first plate 11.

[0062] The first opening 116 and the second opening 126 are disposed on both sides in the X direction of the arc portions 10d, 10e of the coil 10. Therefore, when the first protruding portion 117 and the second protruding portion 127 are bent inward, the tips of the first bent portion 118 and the second bent portion 128 do not come into contact with the outer peripheral surfaces of the arc portions 10d, 10e, so that damage to the coil 10 during assembly of the coil set 30 can be avoided.

[0063] 7 and 9, in the second holder member 16, a second step portion 168 protrudes in the Y1 direction from the Y1-side surface of the second side plate portion 162 so as to surround the second coil holding portion 161. Similarly, in the first holder member 15, a first step portion 158 protrudes in the Y2 direction from the Y2-side surface of the first side plate portion 152 so as to surround the first coil holding portion 151.

[0064] 6 and 7 , at the Y2-direction end of the first plate 11, the first fixing portion 113 has a first end 119 extending in the Z2 direction at a position adjacent to the first cutout portion 115 in the Y2 direction. When the second holder member 16 is assembled to the first plate 11 from the Z2 side, the claw portion 167 is disposed in the first cutout portion 115, and the first end 119 fits into the gap between the claw portion 167 and the second step portion 168. The width of the first end 119 is a dimension that allows the first end 119 to be lightly press-fit into the gap between the claw portion 167 and the second step portion 168.

[0065] Similarly, the first fixing portion 113 provided at the end of the first plate 11 in the Y1 direction also has a first end 119 extending in the Z2 direction at a position adjacent in the Y1 direction to the first cutout portion 115. When the claw portion 157 of the first holder member 15 is placed in the first cutout portion 115, the first end 119 is lightly press-fit into the gap between the claw portion 157 and the first step portion 158.

[0066] Similarly, second ends 129 are provided at positions adjacent to the second notch portions 125 in the second fixing portions 123 provided at the Y2-direction end and the Y1-direction end of the second plate 12. The second ends 129 provided at the Y2-direction end of the second plate 12 overlap the first ends 119 and are lightly press-fitted into the gaps between the claw portions 167 and the second step portions 168. The second ends 129 provided at the Y1-direction end of the second plate 12 overlap the first ends 119 and are lightly press-fitted into the gaps between the claw portions 157 and the first step portions 158. This allows the first holder member 15 and the second holder member 16 to be fixed in the Y direction relative to the first plate 11 and the second plate 12. It is positioned at.

[0067] (Actuator operation) When a current in a predetermined direction is supplied to coil 10 via power supply board 14, movable body 5 supported by support 3 moves relatively to one side in the X direction with respect to support 3 due to the driving force of magnetic drive circuit 6. When the direction of the current is then reversed, movable body 5 moves relatively to the other side in the X direction with respect to support 3. The repeated reversal of the direction of the current supplied to coil 10 causes movable body 5 to vibrate. When movable body 5 vibrates in the X direction, first connecting body 9A and second connecting body 9B are deformed in the shear direction.

[0068] (Main effects of this embodiment) As described above, the actuator 1 of this embodiment includes the movable body 5, the support body 3 including the case 2 that houses the movable body 5, the connector 4 connected to the movable body 5 and the support body 3, the coil 10, and the magnet 7 that faces the coil 10 in the Z direction (first direction), and the magnetic drive circuit 6 that vibrates the movable body 5 in the X direction (second direction) relative to the support body 3. The support body 3 includes a first holder member 15 made of resin that includes a first coil holding portion 151 arranged in the Y1 direction (one side of the third direction) relative to the coil 10 and a first side plate portion 152 extending in the Z direction from the Y1-direction end of the first coil holding portion 151, and a second holder member 16 made of resin that includes a second coil holding portion 161 arranged in the Y2 direction (the other side of the third direction) relative to the coil 10, and a second side plate portion 162 extending in the Z direction from the Y2-direction end of the second coil holding portion 161. The support body 3 also includes a first metal plate 11 that overlaps the coil 10, the first coil holding portion 151, and the second coil holding portion 161 from the Z1 direction (one side in the first direction), and a second metal plate 12 that overlaps the coil 10, the first coil holding portion 151, and the second coil holding portion 161 from the Z2 direction (the other side in the first direction). The first plate 11 and the second plate 12 are positioned relative to the first coil holding portion 151 and the second coil holding portion 161, and the case 2 is positioned relative to the first side plate portion 152 and the second side plate portion 162.

[0069] In this embodiment, by dividing the resin part (conventional coil holder) that holds the coil into two members, both sides of the coil 10 in the X direction, which were conventionally surrounded by resin, are no longer surrounded by resin. Therefore, the coil 10 can be enlarged without increasing the size of the coil assembly 30 in the X direction. This allows the magnetic drive circuit 6 to generate a large driving force, and the actuator 1 to output large vibrations. Furthermore, the case 2, the first plate 11, and the second plate 12 are all positioned relative to the first holder member 15 and the second holder member 16. Therefore, the case 2 can be positioned with high precision. Furthermore, the coil 10 can be positioned with high precision via the first plate 11 and the second plate 12.

[0070] In this embodiment, the first plate 11 includes a first plate portion 111 that overlaps the coil 10, the first coil holding portion 151, and the second coil holding portion 161 from the Z1 direction, and a first bent portion 112 that bends from the X-direction end of the first plate portion 111 in the Z2 direction. The second plate 12 includes a second plate portion 121 that overlaps the coil 10, the first coil holding portion 151, and the second coil holding portion 161 from the Z2 direction, and a second bent portion 122 that bends from the X-direction end of the second plate portion 121 in the Z1 direction (one side in the first direction), and the first bent portion 112 and the second bent portion 122 cover the X-direction side surface of the coil 10. By providing a bent portion extending in the Y direction in this manner, rigidity against bending in the Y direction is increased. Therefore, the rigidity of the first plate 11 and the second plate 12 can be increased. Furthermore, since the first bent portion 112 and the second bent portion 122 can cover the side surface of the coil 10 in the vibration direction (X direction), the coil 10 can be prevented from colliding with the movable body 5 and being damaged.

[0071] In this embodiment, the first plate 11 includes first fixing portions 113 that are bent in the Z2 direction from both edges in the X direction at both ends in the Y direction (third direction) of the first plate portion 111. 2 includes second fixing portions 123 that are bent in the Z1 direction from both edges in the X direction at both ends of second plate portion 121 in the Y direction. Claw portions 157 are provided on both side surfaces in the X direction of first coil holding portion 151, and claw portions 167 are provided on both side surfaces in the X direction of second coil holding portion 161. First notch portions 115 provided in first fixing portion 113 and second notch portions 125 provided in second fixing portion 123 overlap in the X direction at four locations on both sides in the X direction of first coil holding portion 151 and on both sides in the X direction of second coil holding portion 161. Claw portions 157 or claw portions 167 are engaged with first notch portions 115 and second notch portions 125 at the four overlapping locations in the X direction. This prevents first coil holding portion 151 and second coil holding portion 161 from slipping out from between first plate 11 and second plate 12, positioning first holder member 15 and second holder member 16 in the Y direction. Also, first plate 11 and second plate 12 can be positioned in the Y direction via claw portions 157, 167. Furthermore, coil set 30 can be assembled without welding or using fixing parts.

[0072] In this embodiment, a first bent portion 118 that extends in the Z1 direction and then bends toward the center of the first plate portion 111 in the X direction is provided on the Z2-direction edge of a first opening 116 provided in the first fixed portion 113. A second bent portion 128 that extends in the Z2 direction and then bends toward the center of the second plate portion 121 in the X direction is provided on the Z1-direction edge of a second opening 126 provided in the second fixed portion 123. When assembling the coil set 30, the second bent portion 128 is assembled so that it abuts against the first bent portion 118 from the Z2 direction, thereby locking the second plate 12 to the first plate 11 in the Z direction. By employing such a locking structure, in this embodiment, the coil set 30 can be assembled by positioning the first plate 11 and the second plate 12 so that the first opening 116 and the second opening 126 overlap, and then pressing the edges of the first opening 116 and the second opening 126 from the outside with a jig to form the first bent portion 118 and the second bent portion 128. This facilitates the assembly of the coil set 30. Furthermore, because such a fixing structure can be achieved simply by forming openings in the plates at predetermined positions, the parts can be manufactured easily.

[0073] In this embodiment, the claw portion 157 provided on the first coil holding portion 151 has a tapered shape such that the protruding dimension in the X direction increases toward the Y1 direction. The claw portion 167 provided on the second coil holding portion 161 has a tapered shape such that the protruding dimension in the X direction increases toward the Y2 direction. By tapering the claw portions 157, 167 in this way, it becomes possible to employ an assembly method in which the first plate 11 and the second plate 12 are first assembled, and then the first coil holding portion 151 and the second coil holding portion 161 are inserted between the first plate 11 and the second plate 12 while the inclined surfaces of the claw portions 157, 167 press and deflect the first fixing portion 113 of the first plate 11 and the second fixing portion 123 of the second plate 12, thereby assembling the coil set 30.

[0074] In this embodiment, the first plate 11 has first rising portions extending in the Z1 direction (one side in the first direction) from both edges of the first plate portion 111 in the Y direction (third direction), and the second plate 12 has second rising portions extending in the Z2 direction (the other side in the first direction) from both edges of the second plate portion 121 in the Y direction (third direction). By providing the rising portions extending in the Y direction in this way, the rigidity of the first plate 11 and the second plate 12 against bending in the X direction can be increased.

[0075] In this embodiment, the movable body 5 includes a yoke 8 that holds the magnet 7. The yoke 8 includes a first opposing portion (a first flat plate portion 841 and a magnet fixing portion 831) that faces the first plate 11 in the Z1 direction, a second opposing portion (a second flat plate portion 861 and a magnet fixing portion 851) that faces the second plate 12 in the Z2 direction, and a pair of connecting portions (a first connecting plate portion 842 and a second connecting plate portion 862) that are arranged on both sides of the coil 10 in the X direction (second direction). The first side plate portion 152 faces the yoke 8 in the Y1 direction, and the second side plate portion 162 faces the yoke 8 in the Y2 direction. In this way, the first side plate portion 152 and the second side plate portion 162 are configured to face the yoke 8 that surrounds the center portion of the coil set 30 in the Y direction from both sides in the Y direction, so that when an impact such as a fall is applied, the first side plate portion 152 and the second side plate portion 162 function as stoppers that restrict movement of the movable body 5 in the Y direction (third direction). Therefore, damage to the actuator 1 due to an impact such as a fall can be suppressed.

[0076] In this embodiment, the connecting body 4 includes a first connecting body 9A that connects the first opposing portion (connector fixing portion 843 of the first flat plate portion 841) to the first plate 11, and a second connecting body 9B that connects the second opposing portion (connector fixing portion 863 of the second flat plate portion 861) to the second plate 12. In this manner, the connecting body 4 can be disposed inside the yoke 8 to connect the coil set 30 to the yoke 8, eliminating the need to secure space for disposing the connecting body 4 in the gap between the case 2 and the yoke 8. This allows the dimension of the actuator in the Z direction (first direction) to be reduced.

[0077] (Other embodiments) In this embodiment, the magnet 7 includes a first magnet 71 and a second magnet 72, but it may also be configured to include only one of the first magnet 71 and the second magnet 72. Also, it is possible to adopt a configuration in which the connector 4 includes only one of the first connector 9A and the second connector 9B. Furthermore, although the yoke 8 is configured by laminating an inner member and an outer member, it is also possible to adopt a configuration in which the yoke 8 is configured only by the outer member. [Explanation of symbols]

[0078] 1...actuator, 2...case, 3...support, 4...connecting body, 5...movable body, 6...magnetic drive circuit, 7...magnet, 8...yoke, 9A...first connecting body, 9B...second connecting body, 10...coil, 10a, 10b...long side portion, 10c...center hole, 10d, 10e...arc portion, 11...first plate, 12...second plate, 13...adhesive layer, 14...power supply board, 15...first holder member, 16...first holder member, 30...coil set, 31...first case member, 32...second case Member, 71...first magnet, 72...second magnet, 81...first yoke, 82...second yoke, 83...first inner member, 84...first outer member, 85...second inner member, 86...second outer member, 111...first plate portion, 112...first bent portion, 113...first fixing portion, 114...first rising portion, 115...first notch portion, 116...first opening, 117...first protruding portion, 118...first bent portion, 119...first end portion, 121...second plate portion, 122...second bent portion, 123...second fixing portion fixing portion, 124...second rising portion, 125...second notch portion, 126...second opening, 127...second protruding portion, 128...second bent portion, 129...second end portion, 141...first substrate portion, 142...second substrate portion, 143...reinforcing plate, 151...first coil holding portion, 152...first side plate portion, 153...arcuate recess, 154...first recess, 155...receiving surface, 156...first protruding portion, 157...claw portion, 158...first step portion, 161...second coil holding portion, 162...second side plate portion, 163...arc-shaped recess, 164...second recess, 165...receiving surface, 166...second protrusion, 167...claw portion, 168...second step portion, 831...magnet fixing portion, 832...rising portion, 833...notch portion, 841...first flat plate portion, 842...second connecting plate portion, 843...connector fixing portion, 844...rising portion, 851...magnet fixing portion, 852...rising portion, 853...notch portion, 861...second flat plate portion, 862...second connecting plate portion, 863...connector fixing portion, 864...rising portion

Claims

1. A movable body and a support body having a case for accommodating the movable body; a connecting body connected to the movable body and the support body; a magnetic drive circuit including a coil and a magnet facing the coil in a first direction, and configured to vibrate the movable body relative to the support in a second direction intersecting the first direction; The support is a first holder member made of resin, the first holder member including: a first coil holding portion disposed on one side of the coil in a third direction that intersects with the first direction and the second direction; and a first side plate portion extending in the first direction from an end of the first coil holding portion on one side in the third direction; a second holder member made of resin, the second holder member including: a second coil holding portion disposed on the other side in the third direction with respect to the coil; and a second side plate portion extending in the first direction from an end of the second coil holding portion on the other side in the third direction; a first plate made of metal that overlaps the coil, the first coil holding portion, and the second coil holding portion from one side in the first direction; a second plate made of metal that overlaps the coil, the first coil holding portion, and the second coil holding portion from the other side in the first direction, the first plate and the second plate are positioned relative to the first coil holding portion and the second coil holding portion, An actuator, wherein the case is positioned relative to the first side plate portion and the second side plate portion.

2. the first plate includes a first plate portion overlapping the coil, the first coil holding portion, and the second coil holding portion from one side in the first direction, and a first bent portion bent from an end of the first plate portion in the second direction to the other side in the first direction, the second plate includes a second plate portion overlapping the coil, the first coil holding portion, and the second coil holding portion from the other side in the first direction, and a second bent portion bent from an end of the second plate portion in the second direction to one side in the first direction, The actuator according to claim 1 , wherein the first bent portion and the second bent portion cover the side surface of the coil in the second direction.

3. the first plate includes first fixing portions that are bent from both edges in the second direction of the first plate portion at both ends in the third direction to the other side in the first direction, the second plate includes second fixing portions bent from both edges in the second direction at both ends of the second plate portion in the third direction to one side in the first direction, claw portions are provided at four locations on both side surfaces of the first coil holding portion in the second direction and on both side surfaces of the second coil holding portion in the second direction; 3. The actuator according to claim 2, characterized in that at four locations on both sides of the first coil holding portion in the second direction and on both sides of the second coil holding portion in the second direction, first notches provided in the first fixed portion and second notches provided in the second fixed portion overlap in the second direction, and the claw portions are engaged with the first notches and the second notches.

4. the claw portion provided on the first coil holding portion has a tapered shape such that a protruding dimension in the second direction increases toward one side in the third direction, 4. The actuator according to claim 3, wherein the claw portion provided on the second coil holding portion has a tapered shape such that the protruding dimension in the second direction increases toward the other side in the third direction.

5. a first bent portion extending toward one side in the first direction and then bent toward a center of the first plate portion in the second direction is provided at an edge on the other side in the first direction of the first opening provided in the first fixed portion; a second bent portion is provided at an edge on one side in the first direction of the second opening provided in the second fixing portion, the second bent portion extending to the other side in the first direction and then bent toward the center of the second plate portion in the second direction; 5. The actuator according to claim 3, wherein the second bent portion abuts against the first bent portion from the other side in the first direction, thereby locking the second plate relative to the first plate in the first direction.

6. the first plate includes first fixing portions bent from both edges in the second direction of the first plate portion at both ends in the third direction to the other side in the first direction, the second plate includes second fixing portions bent from both edges in the second direction at both ends of the second plate portion in the third direction to one side in the first direction, a first bent portion extending toward one side in the first direction and then bent toward a center of the first plate portion in the second direction is provided at an edge on the other side in the first direction of the first opening provided in the first fixed portion; the second fixing portion overlaps with the first fixing portion in the second direction, a second bent portion is provided at an edge on one side in the first direction of the second opening provided in the second fixing portion, the second bent portion extending to the other side in the first direction and then bent toward the center of the second plate portion in the second direction; 3. The actuator according to claim 2, wherein the second bent portion abuts against the first bent portion from the other side in the first direction, thereby locking the second plate relative to the first plate in the first direction.

7. the first plate includes first rising portions extending from both edges of the first plate portion in the third direction to one side in the first direction, 7. The actuator according to claim 2, wherein the second plate has second raised portions extending from both edges of the second plate portion in the third direction to the other side in the first direction.

8. the movable body includes a yoke that holds the magnet, the yoke includes a first opposing portion opposing the first plate from one side in the first direction, a second opposing portion opposing the second plate from the other side in the first direction, and a pair of connection portions disposed on both sides of the coil in the second direction, the first side plate portion faces the yoke from one side in the third direction, The actuator according to claim 1 , wherein the second side plate portion faces the yoke from the other side in the third direction.

9. The connector is a first connector connecting the first opposing portion and the first plate; The actuator according to claim 8 , further comprising: a second connector that connects the second opposing portion and the second plate.

Images