阅读说明：本技术 致动器及触觉装置 (Actuator and haptic device ) 是由 武居勇一 于 2019-07-25 设计创作，主要内容包括：本发明提供一种致动器及触觉装置,能够将在壳体的内部所产生的热有效率地排出至外部。致动器(10)包括：活动体(12)；支撑体(11)；连接体(13),以与活动体(12)及支撑体(11)两者相接的方式而配置；以及磁驱动电路(40),包括空芯的线圈(31)及永久磁铁(41),所述线圈(31)设置于支撑体(11),所述永久磁铁(41)是以与线圈(31)在第一方向(Z)上的至少一侧相向的方式设置于活动体(12),磁驱动电路(40)使活动体(12)相对于支撑体(11)在第二方向(X)上振动；并且支撑体(11)形成为箱形,收容活动体(12)及磁驱动电路(40),支撑体(11)具有在第二方向(X)上形成开口的一个以上的第一开口部(23)。(The invention provides an actuator and a haptic device, which can effectively discharge heat generated in a housing to the outside. The actuator (10) comprises: a movable body (12); a support body (11); a connecting body (13) disposed so as to be in contact with both the movable body (12) and the support body (11); and a magnetic drive circuit (40) that includes an air-core coil (31) and a permanent magnet (41), the coil (31) being provided on the support body (11), the permanent magnet (41) being provided on the movable body (12) so as to face at least one side of the coil (31) in the first direction (Z), the magnetic drive circuit (40) vibrating the movable body (12) in the second direction (X) with respect to the support body (11); the support body (11) is formed in a box shape and houses the movable body (12) and the magnetic drive circuit (40), and the support body (11) has one or more first opening sections (23) that are open in the second direction (X).)

1. An actuator, comprising:

a movable body;

a support body;

a connecting body including at least one of elasticity and viscoelasticity, and disposed so as to be in contact with both the movable body and the support body at a position where the movable body and the support body face each other; and

a magnetic drive circuit including an air-core coil and a permanent magnet, the coil being one member provided on one of the movable body and the support, the permanent magnet being provided on the other member of the movable body and the support so as to face at least one side of the coil in a first direction, the magnetic drive circuit vibrating the movable body relative to the support in a second direction intersecting the first direction; and is

The support is

Formed in a box shape, accommodating the movable body and the magnetic drive circuit, and

the display device includes one or more first opening portions that are opened in the second direction.

2. The actuator of claim 1, wherein

The movable body includes:

a pair of flat plate portions disposed so as to sandwich the periphery of the coil and the permanent magnet in the first direction; and

one or more connection portions that connect the pair of flat plate portions to each other at least on one side in the second direction; and is

The one or more first openings are provided at positions overlapping the connection portion when viewed from the second direction.

3. The actuator of claim 2, wherein

The plurality of coupling portions are provided at intervals in a third direction orthogonal to the first direction and the second direction.

4. The actuator of claim 3, wherein

The one or more first openings are provided at positions overlapping with the two coupling portions adjacent to each other in the third direction.

5. An actuator according to any of claims 1 to 4, wherein

The support body includes:

a coil holder holding the coil; and

a housing accommodating the coil holder; and is

The coil holder includes a pair of holder side plate portions that sandwich the movable body and the magnetic drive circuit in the second direction,

the housing includes a pair of housing side plate portions covering the pair of holder side plate portions,

the first opening portion penetrates the holder side plate portion and the case side plate portion.

6. The actuator of claim 5, wherein

The housing includes:

a first housing member located at one side in the first direction with respect to the coil holder; and

a second housing member located at the other side of the first direction with respect to the coil holder; and is

The first housing member includes a pair of first housing side plate portions covering the pair of holder side plate portions,

the second case member includes a pair of second case side plate portions covering edges of the pair of first case side plate portions,

the first opening portion penetrates through a portion of the first case side plate portion other than the edge portion.

7. An actuator according to any of claims 1 to 6, wherein

The support includes one or more second openings that open in a third direction that is orthogonal to the first direction and the second direction.

8. An actuator according to claim 5 or 6, wherein

The support body includes one or more second opening portions that are opened in a third direction orthogonal to the first direction and the second direction,

the second opening portion is provided to the coil holder,

the housing is formed in a cylindrical shape, and an opening is formed in the third direction, which is orthogonal to the first direction and the second direction.

9. A haptic device, comprising:

a movable body;

a support body;

a connecting body including at least one of elasticity and viscoelasticity, and disposed so as to be in contact with both the movable body and the support body at a position where the movable body and the support body face each other; and

a magnetic drive circuit including an air-core coil and a permanent magnet, the coil being one member provided on one of the movable body and the support, the permanent magnet being provided on the other member of the movable body and the support so as to face at least one side of the coil in a first direction, the magnetic drive circuit vibrating the movable body relative to the support in a second direction intersecting the first direction; and is

The support is

Formed in a box shape, accommodating the movable body and the magnetic drive circuit, and

the display device includes one or more first opening portions that are opened in the second direction.

Technical Field

The present invention relates to an actuator (actuator) and a haptic device that vibrate a movable body.

Background

As a device for reporting information by vibration, an actuator has been proposed which includes a movable body including a permanent magnet and a support body including a coil facing the permanent magnet, the movable body and the support body being incorporated in a housing (see patent document 1).

[ Prior art documents ]

[ patent document ]

[ patent document 1] Japanese patent laid-open No. 2016-127789

Disclosure of Invention

[ problems to be solved by the invention ]

The movable body vibrates by the current flowing through the coil, but the coil generates heat as the current is applied, and the generated heat fills the inside of the case, thereby raising the temperature inside the case. If the temperature inside the case rises, for example, in the case where the permanent magnet is a bond magnet, there is a possibility that the performance of the actuator is degraded due to thermal demagnetization of the magnet. In addition, in a small-sized actuator, a bobbin (bobbin) cannot be used due to space, and typically, a self-fusing wire is used for a wire forming a coil, but when the temperature inside the case rises, an adhesive of the self-fusing wire melts, and thus, the shape of the coil may not be maintained.

The present invention has been made in view of the above circumstances, and an object thereof is to provide an actuator and a haptic device capable of efficiently discharging heat generated inside a housing to the outside.

[ means for solving problems ]

An actuator according to an embodiment of the present invention includes: a movable body; a support body; a connecting body having at least one of elasticity and viscoelasticity, and disposed so as to be in contact with both the movable body and the support body at a position where the movable body and the support body face each other; and a magnetic drive circuit including an air-core coil and a permanent magnet, the coil being provided on one member of the movable body and the support, the permanent magnet being provided on the other member of the movable body and the support so as to face at least one side of the coil in a first direction, the magnetic drive circuit vibrating the movable body relative to the support in a second direction intersecting the first direction; the support body is formed in a box shape and houses the movable body and the magnetic drive circuit, and the support body has one or more first opening portions that are open in the second direction.

The haptic device of an embodiment of the present invention includes: a movable body; a support body; a connecting body having at least one of elasticity and viscoelasticity, and disposed so as to be in contact with both the movable body and the support body at a position where the movable body and the support body face each other; and a magnetic drive circuit including an air-core coil and a permanent magnet, the coil being provided on one member of the movable body and the support, the permanent magnet being provided on the other member of the movable body and the support so as to face at least one side of the coil in a first direction, the magnetic drive circuit vibrating the movable body relative to the support in a second direction intersecting the first direction; the support body is formed in a box shape and houses the movable body and the magnetic drive circuit, and the support body has one or more first opening portions that are open in the second direction.

[ Effect of the invention ]

According to the present invention, it is possible to provide an actuator and a haptic device that can efficiently discharge heat generated inside a housing to the outside.

Drawings

Fig. 1(a) and 1(B) show an example of an actuator for explaining an embodiment of the present invention, where fig. 1(a) is an overall perspective view of the actuator as viewed from above on one side in a third direction, and fig. 1(B) is an overall perspective view of the actuator as viewed from above on the other side in the third direction.

Fig. 2 is a sectional view of the actuator taken along line II-II.

Fig. 3 is a sectional view of the actuator taken along line III-III.

Fig. 4 is an exploded perspective view of the actuator.

Fig. 5 is an exploded perspective view of the movable body.

Fig. 6 is an exploded perspective view of the magnetic drive circuit.

Fig. 7 is a perspective view of the actuator cut at the connecting portion of the yoke.

Fig. 8 is a perspective view of the actuator cut at the non-coupling portion of the yoke.

Fig. 9 is a perspective view of the actuator in which the permanent magnet is cut.

Fig. 10 is a perspective view of a modification of the actuator.

Fig. 11 is a sectional view of another modification of the actuator.

Description of the symbols

10: actuator

11: support body

12: movable body

13: damper (connector)

20: shell body

21: first housing member

212: first case side plate part

22: second housing member

222: second case side plate part

23: a first opening part

25: edge part

30: coil holder

31: coil

33: a second opening part

34: side plate part of holder

40: magnetic drive circuit

41: permanent magnet

42: magnetic yoke

431. 432: flat plate part

44: connecting part

X: second direction

Y: third direction

Z: a first direction

Detailed Description

Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the following description, X is given in the vibration direction (second direction) of the movable body 12, Z is given in the first direction intersecting the second direction X, and Y is given in the third direction intersecting the first direction Z and the second direction X. Note that X1 is marked on one side in the second direction X, X2 is marked on the other side in the second direction X, Z1 is marked on one side in the first direction Z, Z2 is marked on the other side in the first direction Z, Y1 is marked on one side in the third direction Y, and Y2 is marked on the other side in the third direction Y.

(Overall Structure)

Fig. 1(a) is an overall perspective view of the actuator 10 as viewed from above one side Y1 in the third direction Y, and fig. 1(B) is an overall perspective view as viewed from above the other side Y2 in the third direction Y.

Fig. 2 is a sectional view of the actuator 10 taken along line II-II. Fig. 3 is a sectional view of the actuator 10 taken along line III-III. Fig. 4 is an exploded perspective view of the actuator 10.

The actuator 10 shown in fig. 1(a) and 1(B) has a rectangular parallelepiped shape with its longitudinal direction oriented in the third direction Y, and can report information to a user holding the actuator 10 by vibration in the second direction X, and is used as, for example, an operation member of a game machine. The actuator 10 can also be used as a tactile device that presents a tactile sensation by vibration.

As shown in fig. 1(a) to 4, the actuator 10 includes: a support 11 including a square housing 20 defining the outer shape of the actuator 10; and a movable body 12 supported by the support body 11 so as to be movable in the second direction X inside the housing 20; and outputs information by the vibration of the movable body 12 in the second direction X. The movable body 12 is vibratably supported by the support body 11 via a damper (connector) 13, and the damper 13 is provided between the movable body 12 and the support body 11. The damper 13 has at least one of elasticity and viscoelasticity.

The support 11 includes a case (case)20, a coil holder (coil holder)30, a coil 31, and a power supply substrate 32. On the other hand, the movable body 12 includes a permanent magnet 41 (first permanent magnet 411 and second permanent magnet 412) and a yoke 42 (first yoke 421 and second yoke 422). The coil 31 and the permanent magnet 41 constitute a magnetic drive circuit 40.

(Structure of Movable body 12)

Fig. 5 is an exploded perspective view of the movable body 12 of the actuator 10. As shown in fig. 2, 3, and 5, the movable body 12 includes: a first yoke 421 disposed on one side Z1 in the first direction Z with respect to the coil 31 and including a magnetic plate; and a first permanent magnet 411 which is a flat plate-shaped permanent magnet 41 and is held on a surface of the other side Z2 of the first yoke 421 in the first direction Z so as to face one side Z1 of the coil 31 in the first direction Z.

The movable body 12 includes: a second yoke 422, which is arranged on the other side Z2 in the first direction Z with respect to the coil 31, and includes a magnetic plate; and a second permanent magnet 412 that is a flat plate-shaped permanent magnet 41 and is held on a surface of the second yoke 422 on one side Z1 in the first direction Z so as to face the other side Z2 of the coil 31 in the first direction Z. In the present embodiment, the movable body 12 includes a first yoke 421, a first permanent magnet 411, a second yoke 422, and a second permanent magnet 412.

The first yoke 421 includes: a plate portion 431 to which the first permanent magnet 411 is fixed; and a connecting portion 44 bent from both ends of the flat plate portion 431 in the second direction X toward the other side Z2 in the first direction Z. A plurality of the coupling portions 44 are provided along the third direction Y, and gaps 46 are provided between adjacent coupling portions 44. The coupling portion 44 has a convex portion 441 protruding toward the second yoke 422 side at the center portion in the third direction Y.

The second yoke 422 has a flat plate portion 432 to which the second permanent magnet 412 is fixed, and a plurality of protruding portions 45 are provided at an intermediate portion of the flat plate portion 432 in the third direction Y, the protruding portions 45 protruding toward one side X1 and the other side X2 in the second direction X. The protruding portion 45 has a pair of protruding plates 451, 451 along the third direction Y, and a recess 452 is provided between the pair of protruding plates 451, 451. Further, a gap 46 is provided between the adjacent protruding portions 45.

When the first yoke 421 and the second yoke 422 are coupled, the convex portion 441 of the coupling portion 44 of the first yoke 421 is inserted into the concave portion 452 of the second yoke 422. The first yoke 421 and the second yoke 422 are integrally coupled to each other by connecting the extension portion 45 and the coupling portion 44 by, for example, welding. At this time, the gap 46 on the first yoke 421 side coincides with the gap 46 on the second yoke 422 side.

(Structure of support 11)

As shown in fig. 1(a) to 4, the support 11 includes a case 20, a coil holder 30, a coil 31, and a power supply substrate 32. The housing 20 includes a first housing member 21 and a second housing member 22, the first housing member 21 is located at one side Z1 in the first direction Z, and the second housing member 22 coincides with the first housing member 21 at the other side Z2 in the first direction Z. The first case member 21 includes a first case cover plate portion 211 and first case side plate portions (case side plate portions) 212, and the first case side plate portions (case side plate portions) 212 are bent from both sides of the first case cover plate portion 211 in the second direction X toward the other side Z2 in the first direction Z. The second case member 22 includes a second case cover 221 and second case side plates (case side plates) 222, and the second case side plates (case side plates) 222 are bent from both sides of the second case cover 221 in the second direction X toward the first direction Z1.

Here, the case 20 is formed by the second case side plate portion 222 overlapping the outer side of the edge portion 25 (see fig. 1 a and 1B) which is the end portion of the other side Z2 of the first case side plate portion 212 in the first direction Z. Both ends of the housing 20 in the third direction Y are opened. Further, the coil holder 30, the movable body 12, and the like are housed between the first case member 21 and the second case member 22.

The first opening 23 is provided at a predetermined interval in the third direction Y in the pair of first case side plate portions 212 of the first case member 21. The first opening 23 includes: an a opening 231 provided at a position facing the coupling portion 44 of the first yoke 421 when the movable body 12 is housed in the case 20 (see fig. 7); and a B opening 232 located in the gap 46 between the adjacent coupling portions 44 (see fig. 8). On the other hand, notches 223 are provided at predetermined intervals in the third direction Y at the ends of one side Z1 in the first direction Z of the pair of second case side plate portions 222 of the second case member 22 (see fig. 4). The notch 223 is rectangular and forms an opening at one side Z1 in the first direction Z. The notch 223 of the second case member 22 is provided to correspond to the B opening 232 of the first opening 23.

The coil holder 30 is frame-shaped, has openings formed on both sides in the first direction Z, and includes a pair of holder side plate portions 34 extending in the first direction Z and the third direction Y, and a pair of holder side plate portions 35 provided at both ends in the third direction Y. The power supply substrate 32 is mounted on the holder-side plate portion 35 of one side Y1 in the third direction Y, and a notch 36 (see fig. 1 a) for exposing the power supply substrate 32 is provided in the holder-side plate portion 35. The holder side plate portion 35 of the other side Y2 in the third direction Y is provided with a second opening 33 (see fig. 1B). A plurality of holder-side first opening portions 37 are provided in the pair of holder-side plate portions 34 in the third direction Y. The holder-side first opening portion 37 includes a holder-side a opening portion 371 corresponding to the a opening portion 231 of the first housing member 21, and a holder-side B opening portion 372 corresponding to the B opening portion 232 of the first housing member 21.

Therefore, in a state where the coil holder 30 is accommodated in the first housing member 21, an opening portion is formed by the a opening portion 231 and the holder-side a opening portion 371, which successively penetrate the coil holder 30 and the first housing member 21. The a opening 231 and the holder-side a opening 371 face the connection portion 44 of the first yoke 421 (see fig. 7). Similarly, an opening is formed by the B opening 232 and the holder-side B opening 372, and the opening successively penetrates the coil holder 30 and the first case member 21. The B opening 232 and the holder-side B opening 372 are located in the gap 46 between the adjacent coupling portions 44 of the first yoke 421, and therefore the inside of the movable body 12 communicates with the outside of the housing 20 (see fig. 8).

The coil holder 30 has positioning portions 38 provided on the inner surfaces of the pair of holder side plate portions 34 at predetermined intervals in the third direction Y. The positioning portion 38 is provided at a position corresponding to a gap 46 in a state where the coil holder 30 accommodates the movable body 12, and is receivable in the gap 46, and the gap 46 is provided between the coupling portions 44 of the first yoke 421. Thereby, the movement of the movable body 12 toward the third direction Y inside the coil holder 30 is restricted.

(Structure of magnetic drive Circuit 40)

Fig. 6 is a perspective view of the magnetic drive circuit 40. As shown in fig. 2 and 6, the magnetic drive circuit 40 has an air-core coil 31 wound in an oval shape, and a coil wire 311 of the coil 31 is connected to the power supply substrate 32 of the coil holder 30. A first plate (plate)471 is provided on one side Z1 of the coil 31 in the first direction Z, and a second plate 472 is provided on the other side Z2 of the coil 31 in the first direction Z. That is, the coil 31 is sandwiched between the first plate 471 and the second plate 472. Further, the first permanent magnet 411 (not shown in fig. 6) is provided on one side Z1 of the first plate 471 in the first direction Z, and the second permanent magnet 412 is provided on the other side Z2 of the second plate 472 in the first direction Z. Here, two permanent magnets 41 are provided in parallel in the third direction Y, but one or more than three permanent magnets may be used.

(action)

When power is supplied to the coil 31 from the outside (higher-order apparatus) via the power supply board 32, the movable body 12 is reciprocated in the second direction X inside the support 11 by the magnetic drive circuit 40, and the magnetic drive circuit 40 includes the coil 31, the first permanent magnet 411, and the second permanent magnet 412. Thereby, a user holding the actuator 10 can obtain information by vibration from the actuator 10.

Fig. 9 shows the flow of air a caused by the vibration of the movable body 12. As shown in fig. 9, the vibration of the movable body 12 causes the coupling portion 44 of the first yoke 421 to repeatedly come into contact with and separate from the first opening 23 and the holder-side first opening 37, and the coupling portion 44 of the first yoke 421 faces the first opening 23(a opening 231) of the support body 11 and the holder-side first opening 37 (holder-side a opening 371). Thereby, the air a inside the support 11 is discharged to the outside of the support 11 through the outer surface of the connection portion 44.

The movable body 12 repeatedly comes into contact with and separates from the first opening 23(B opening 232) and the holder-side first opening 37 (holder-side B opening 372), and the first opening 23(B opening 232) and the holder-side first opening 37 (holder-side B opening 372) are provided so as to face the gap 46 between the coupling portions 44 of the first yoke 421. Thus, the air a around the coil 31 is discharged to the outside of the support body 11 through the gap 46, the first opening 23(B opening 232), and the holder-side first opening 37 (holder-side B opening 372), and the coil 31 is surrounded by the first yoke 421 and the second yoke 422.

When the air a inside the support body 11 is discharged to the outside, the air a outside is introduced into the support body 11 from the second opening 33 provided at the end of the other side Y2 in the third direction Y of the coil holder 30, and therefore the flow of the air a inside the support body 11 becomes active.

(action and Effect)

In the actuator 10, the movable body 12 and the support body 11 are in contact with the damper 13 at positions facing each other, and the damper 13 has elasticity or viscoelasticity. Therefore, the occurrence of resonance in the movable body 12 can be suppressed. Further, a magnetic drive circuit 40 is provided, and the magnetic drive circuit 40 is configured to generate vibration in a second direction X intersecting the first direction Z with respect to the movable body 12 with respect to the support body 11. As a result, the movable body 12 vibrates in the second direction X with respect to the support body 11, and thus information can be transmitted to the user holding the actuator 10. The movable body 12 and the magnetic drive circuit 40 are housed in a box-shaped support 11, and the support 11 is provided with one or more first openings 23 that are open in the second direction X. Therefore, the air inside the support 11 is pushed in the second direction X, which is the vibration direction, by the vibration of the movable body 12, and therefore the heat generated inside the support 11 can be appropriately discharged from the first opening 23.

In the actuator 10, the yoke 42 provided to the movable body 12 includes: a pair of flat plate portions 431 and 432 sandwiching the coil 31 and the permanent magnet 41 in the first direction Z; and a coupling portion 44 that couples the pair of flat plate portions 431 and 432 to each other on both sides in the second direction X. Thereby, the yoke 42 is formed, and the yoke 42 vibrates toward the second direction X. The first opening 23, which is formed in the support 11 so as to open in the second direction X, is provided at a position overlapping the connection portion 44. Therefore, when the yoke 42 vibrates in the second direction X, the outer surface of the connection portion 44 pushes out the air a inside the support body 11 from the first opening portion 23, and therefore, heat can be efficiently exhausted.

In the actuator 10, a plurality of coupling portions 44 are provided at intervals in the third direction Y, and a gap 46 is provided between adjacent coupling portions 44. Therefore, the air a around the coil 31 surrounded by the yoke 42 can be guided to the outer surface of the coupling portion 44 outside the yoke 42, and heat can be efficiently discharged.

In the actuator 10, the inside of the yoke 42 communicates with the outside of the support body 11 via the first opening 23, and the first opening 23 is provided in correspondence with the gap 46 between the adjacent coupling portions 44, so that heat can be efficiently discharged.

In the actuator 10, the first opening 23 is provided in a portion of the first case member 21 where the first case side plate portion 212 and the second case side plate portion 222 overlap with each other, except for the edge portion 25, so that the strength of the first case member 21 can be ensured.

In the actuator 10, since the second opening 33 is opened in the third direction Y of the box-shaped support body 11, when the air a inside the support body 11 is discharged from the first opening 23 in response to the vibration of the movable body 12, the outside air a can be introduced into the support body 11 from the second opening 33. Therefore, the flow of the air a inside the support 11 can be activated, and the heat radiation efficiency can be further improved.

In the actuator 10, since the second opening 33 is provided in the coil holder 30, the coil 31 can be efficiently cooled by the outside air a introduced through the second opening 33.

In the actuator 10, the case has been described in which the notch 223 is provided in the second case side plate portion 222 of the second case member 22 so as to correspond to the B opening 232 of the first opening 23 (see fig. 4), but as shown in fig. 10, the notch 223 may not be provided in the second case side plate portion 222 of the second case member 22.

In the actuator 10, the damper 13 (see fig. 2) is provided between the yoke 42, which is the movable body 12, and the housing 20, which is the support body 11, but the damper 13 may be provided between the yoke 42, which is the movable body 12, and the plate 47, which is the support body 11, as shown in fig. 11. Even if the actuator 10 is provided as described above, the same operation and effect as those of the actuator 10 can be obtained, and the actuator 10 can be further thinned.

In the actuator 10, the coil 31 is provided on the support 11 and the permanent magnet 41 (the first permanent magnet 411 and the second permanent magnet 412) is provided on the movable body 12, but the coil 31 may be provided on the movable body 12 and the permanent magnet 41 may be provided on the support 11.

As described above, the actuator disclosed in the present specification includes: a movable body; a support body; a connecting body having at least one of elasticity and viscoelasticity, and disposed so as to be in contact with both the movable body and the support body at a position where the movable body and the support body face each other; and a magnetic drive circuit including an air-core coil and a permanent magnet, the coil being one member provided on one of the movable body and the support, the permanent magnet being provided on the other member of the movable body and the support so as to face at least one side of the coil in a first direction, the magnetic drive circuit vibrating the movable body relative to the support in a second direction intersecting the first direction; the support body is formed in a box shape and houses the movable body and the magnetic drive circuit, and the support body has one or more first opening portions that are open in the second direction. According to the above configuration, the support body that houses the movable body and the magnetic drive circuit is provided with the one or more first opening portions that are opened in the second direction, which is the vibration direction, and the air inside the support body is pushed in the second direction, which is the vibration direction, by the vibration of the movable body.

In the actuator disclosed in the present specification, the movable body includes a pair of flat plate portions disposed so as to sandwich the periphery of the coil and the permanent magnet in the first direction, and one or more connecting portions that connect the pair of flat plate portions to each other on at least one side in the second direction, and one or more first openings are provided at positions overlapping the connecting portions when viewed in the second direction. According to the above configuration, the first opening of the support body is provided at a position overlapping the coupling portion of the movable body in the second direction, and when the movable body vibrates in the second direction, the coupling portion pushes out the air inside the support body from the first opening, so that heat can be more efficiently released.

In the actuator disclosed in the present specification, the plurality of coupling portions are provided at intervals in a third direction orthogonal to the first direction and the second direction. According to this configuration, the air surrounded by the movable body can be guided to the outside of the movable body through the space between the two coupling portions adjacent in the third direction, and the heat can be more efficiently discharged.

In the actuator disclosed in the present specification, one or more of the first openings are provided at positions overlapping with two of the coupling portions adjacent to each other in the third direction. According to this configuration, the inside of the movable body communicates with the outside of the support body, and therefore heat can be more efficiently discharged.

In the actuator disclosed in the present specification, the support body includes a coil holder that holds the coil, and a case that houses the coil holder, the coil holder includes a pair of holder side plate portions that sandwich the movable body and the magnetic drive circuit in the second direction, the case includes a pair of case side plate portions that cover the pair of holder side plate portions, and the first opening portion penetrates the holder side plate portions and the case side plate portions.

In the actuator disclosed in the present specification, the housing includes a first housing member located on one side in the first direction with respect to the coil holder, and a second housing member located on the other side in the first direction with respect to the coil holder, the first housing member includes a pair of first housing side plate portions covering the pair of holder side plate portions, the second housing member includes a pair of second housing side plate portions covering edges of the pair of first housing side plate portions, and the first opening portion penetrates through a portion of the first housing side plate portions other than the edges. According to this structure, the strength of the first case member can be improved.

In the actuator disclosed in the present specification, the support body includes one or more second openings that are open in a third direction orthogonal to the first direction and the second direction. According to the above configuration, when the air inside the support body is discharged in response to the vibration of the movable body, the external air can be introduced into the support body from the second opening portion, and the flow of the air inside the support body can be activated, thereby further improving the heat discharge efficiency.

In the actuator disclosed in the present specification, the support body includes one or more second opening portions that are open in a third direction orthogonal to the first direction and the second direction, the second opening portions are provided in the coil holder, the housing is formed in a cylindrical shape, and the housing is open in the third direction orthogonal to the first direction and the second direction. According to this configuration, the coil can be efficiently cooled by the outside air introduced from the second opening portion.

Further, a haptic device disclosed in the present specification includes: a movable body; a support body; a connecting body having at least one of elasticity and viscoelasticity, and disposed so as to be in contact with both the movable body and the support body at a position where the movable body and the support body face each other; and a magnetic drive circuit including an air-core coil and a permanent magnet, the coil being one member provided on one of the movable body and the support, the permanent magnet being provided on the other member of the movable body and the support so as to face at least one side of the coil in a first direction, the magnetic drive circuit vibrating the movable body relative to the support in a second direction intersecting the first direction; the support body is formed in a box shape and houses the movable body and the magnetic drive circuit, and the support body has one or more first opening portions that are open in the second direction. According to the above configuration, the support body that houses the movable body and the magnetic drive circuit is provided with the one or more first opening portions that are opened in the second direction, which is the vibration direction, and the air inside the support body is pushed in the second direction, which is the vibration direction, by the vibration of the movable body.