Power generation device and control device

Abstract

To improve the operational stability of a power generation device and a control device.SOLUTION: A power generation device is provided that includes: a yoke; an oscillating member including a magnetostrictive member and provided in an oscillation possible manner in a first direction relative to the yoke; a coil attached to at least one of the yoke and the oscillating member; a circuit member electrically connected to the coil; and a housing that accommodates the yoke, the oscillating member, and the circuit member, where the circuit member includes a wireless communication unit configured to wirelessly transmit a signal.SELECTED DRAWING: Figure 4

Description

[Technical field]

[0001] The present invention relates to a power generation device and a control device. [Background technology]

[0002] 2. Description of the Related Art Magnetostrictive power generating devices that generate power by applying vibration to a magnetostrictive element are known (see, for example, Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent No. 6331677 Summary of the Invention [Problem to be solved by the invention]

[0004] In the magnetostrictive generator described above, the magnetic flux passing through the inside of the magnetic coil wound around the vibrating magnetostrictive rod fluctuates to generate an induced current in the magnetic coil, which generates power, so the magnetic coil vibrates together with the magnetostrictive rod. Therefore, the connection wire connecting the magnetic coil and the power supply circuit is subjected to tensile stress due to the vibration of the magnetic coil, which may cause the connection wire to break. This makes it difficult to improve the stability of the operation of the magnetostrictive generator. In addition, an example of the use of the magnetostrictive generator is a control device in which a user operates an operating unit to make the magnetostrictive generator generate electricity, and a command signal created based on the user's operation is wirelessly transmitted to a driven device to operate the driven device. However, in the magnetostrictive generator, the magnetostrictive rod and magnetic coil are made of magnetic materials, so the command signal is easily magnetically shielded by the magnetostrictive rod and magnetic coil, and the command signal cannot be reliably transmitted outside the magnetostrictive generator. Therefore, it is difficult to improve the stability of the operation of the magnetostrictive generator.

[0005] In consideration of the above-mentioned problems, an object of the present invention is to provide a power generation device and a control device capable of improving the stability of operation. [Means for solving the problem]

[0006] (1) One aspect of the present invention that solves the above-mentioned problems is a power generation device comprising a yoke, a oscillating member including a magnetostrictive member and arranged to be oscillable in a first direction relative to the yoke, a coil attached to at least one of the yoke and the oscillating member, a circuit member electrically connected to the coil, and a housing that accommodates the yoke, the oscillating member, and the circuit member, wherein the circuit member includes a wireless communication unit configured to wirelessly transmit a signal.

[0007] According to the above configuration, since the command signal can be wirelessly transmitted by the wireless communication unit, the command signal can be stably transmitted to the outside of the power generating device, thereby improving the stability of the operation of the power generating device.

[0008] (2) In one aspect of the present invention, in the power generating device according to (1), the wireless communication unit may not be at least partially opposed to any of the yoke, the coil, and the oscillating member.

[0009] According to the above configuration, the command signal wirelessly transmitted by the wireless communication unit can be prevented from being magnetically shielded by the yoke, the coil, and the magnetostrictive member, so that the command signal can be stably transmitted to the outside of the power generating device, thereby improving the stability of the operation of the power generating device.

[0010] (3) One aspect of the present invention is the power generation device described in (1), wherein the wireless communication unit may include an antenna configured to wirelessly transmit the signal outside the power generation device, and a wireless device electrically connected to the antenna and configured to transmit the signal to the antenna.

[0011] According to the above configuration, since the command signal can be wirelessly transmitted by the antenna, the command signal can be transmitted more stably to the outside of the power generating device, and therefore the stability of the operation of the power generating device can be more suitably improved.

[0012] (4) In one aspect of the present invention, in the power generating device according to (3), the antenna may not face at least partially any of the yoke, the coil, and the oscillating member.

[0013] According to the above configuration, the command signal wirelessly transmitted by the antenna can be more effectively prevented from being magnetically shielded by the yoke, the coil, and the magnetostrictive member, so that the command signal can be more stably transmitted to the outside of the power generating device, thereby more effectively improving the stability of the operation of the power generating device.

[0014] (5) One aspect of the present invention is the power generation device described in (3) or (4), wherein the antenna may be positioned in an unobstructed position that allows the signal to reach outside the housing.

[0015] According to the above configuration, the command signal wirelessly transmitted by the antenna can be more effectively prevented from being magnetically shielded by the yoke, the coil, and the magnetostrictive member, so that the command signal can be more stably transmitted to the outside of the power generating device, thereby more effectively improving the stability of the operation of the power generating device.

[0016] (6) One aspect of the present invention is the power generating device described in any one of (3) to (5), wherein the antenna may be offset from the yoke, the coil, and the oscillating member when viewed from the first direction.

[0017] According to the above configuration, the direction in which the command signal can be transmitted to the outside of the power generating device can be preferably expanded, so that the command signal can be transmitted to the outside of the power generating device more stably, thereby more preferably improving the stability of the operation of the power generating device.

[0018] (7) One aspect of the present invention is a power generating device as described in any one of (1) to (6), wherein the circuit member includes a substrate having a first surface and a second surface opposite the first surface, the wireless communication unit is provided on the first surface, and the first surface may not be at least partially opposed to any of the yoke, the coil, and the oscillating member.

[0019] According to the above configuration, since the wireless communication unit can wirelessly transmit the command signal in a direction opposite to the direction facing the yoke, the coil, and the magnetostrictive member, the command signal can be more effectively prevented from being magnetically shielded by the yoke, the coil, and the magnetostrictive member. Therefore, the command signal can be more stably transmitted to the outside of the power generating device, and the stability of the operation of the power generating device can be more effectively improved.

[0020] (8) One aspect of the present invention is a power generating device described in any of (1) to (7), wherein the circuit member may at least partially overlap at least one of the yoke, the coil, and the oscillating member when viewed from the first direction.

[0021] According to the above configuration, it is possible to prevent the power generating device from becoming large in both the second and third directions, which makes it easier to install the power generating device in a small space, thereby improving the convenience of the power generating device.

[0022] (9) One aspect of the present invention is a power generating device described in any of (1) to (8), wherein the circuit member may at least partially overlap at least one of the yoke, the coil, and the oscillating member when viewed from a non-parallel direction different from the first direction.

[0023] According to the above configuration, it is possible to prevent the power generating device from becoming large in size in the first direction, which makes it easier to install the power generating device in a small space, thereby improving the convenience of the power generating device.

[0024] (10) One aspect of the present invention is the power generating device according to any one of (1) to (9), wherein the housing may be formed to include a non-magnetic material.

[0025] According to the above configuration, the command signal transmitted from the wireless communication unit can be prevented from being magnetically blocked by the housing, so that the command signal can be transmitted to the outside of the power generating device more stably, thereby more suitably improving the stability of the operation of the power generating device.

[0026] (11) One aspect of the present invention is a power generating device according to any one of (1) to (10), wherein the coil is attached to the oscillating member, the circuit member is electrically connected to the coil via a connecting wire, the oscillating member has a first oscillating portion and a second oscillating portion, and when the oscillating member oscillates in the first direction, a first amplitude of the first oscillating portion is greater than a second amplitude of the second oscillating portion, and a first distance between a connection position where the coil is connected to the connecting wire and the first oscillating portion is longer than a second distance between the connection position and the second oscillating portion.

[0027] According to the above configuration, when the oscillating member is oscillated in the first direction, the stress applied to the connection line is easily reduced, and therefore the connection line is easily prevented from being broken. Therefore, the coil and the circuit member can be stably electrically connected, and the stability of the operation of the power generating device can be improved.

[0028] (12) One aspect of the present invention that solves the above-mentioned problems is a power generating device comprising: a yoke, a oscillating member including a magnetostrictive member and arranged to be oscillable in a first direction relative to the yoke, a coil attached to the oscillating member, and a circuit member electrically connected to the coil via a connecting wire, wherein the oscillating member has a first oscillating portion and a second oscillating portion, and when the oscillating member oscillates in the first direction, a first amplitude of the first oscillating portion is greater than a second amplitude of the second oscillating portion, and a first distance between a connection position where the coil is connected to the connecting wire and the first oscillating portion is greater than a second distance between the connection position and the second oscillating portion.

[0029] According to the above configuration, when the oscillating member is oscillated in the first direction, the stress applied to the connection line is easily reduced, and therefore the connection line is easily prevented from being broken. Therefore, the coil and the circuit member can be stably electrically connected, and the stability of the operation of the power generating device can be improved.

[0030] (13) One aspect of the present invention is the power generation device described in (11) or (12), wherein the first oscillating part is provided away from the second oscillating part in a second direction different from the first direction, and the second oscillating part may be in contact with the yoke.

[0031] According to the above configuration, when the oscillating member oscillates in the first direction, the amplitude of the magnetostrictive member at the second oscillating portion side can be effectively prevented from increasing. Therefore, when the oscillating member oscillates in the first direction, the stress applied to the connection line can be effectively reduced, and the connection line can be effectively prevented from being broken. Therefore, the stability of the operation of the power generating device can be effectively improved.

[0032] (14) In one aspect of the present invention, in the power generating device according to any one of (1) to (13), the yoke may be formed to include a magnetic material.

[0033] According to the above configuration, the magnetic flux density of the magnetic flux passing through the inside of the coil can be increased, so that the generated current and generated voltage in the coil can be increased, thereby improving the power generation efficiency of the power generation device.

[0034] (15) One aspect of the present invention is a power generating device as described in any one of (1) to (14), wherein the oscillating member further includes a frame to which the magnetostrictive member is attached and which is formed to include a non-magnetic material, and the yoke may support at least one of the magnetostrictive member and the frame.

[0035] According to the above configuration, when the oscillating member oscillates in the first direction, the amplitude of the magnetostrictive member can be prevented from becoming too large, so that the stress applied to the connection line can be more suitably reduced. Therefore, the connection line can be more suitably prevented from being broken. Therefore, the stability of the operation of the power generating device can be more suitably improved.

[0036] (16) An aspect of the present invention is the power generating device according to any one of (1) to (15), which may further include a magnetic flux forming member that forms a magnetic flux passing through the magnetostrictive member.

[0037] According to the above-described configuration, the magnetic flux density passing through the magnetostrictive member can be increased, so that the generated current and generated voltage generated in the coil 26 can be increased.

[0038] (17) In one aspect of the present invention, in the power generating device according to (16), the magnetic flux generating member may be disposed between the yoke and the oscillating member.

[0039] According to the above configuration, the magnetic flux density passing through the closed magnetic circuit formed among the magnetic flux forming member, the yoke, and the magnetostrictive member can be increased more stably, thereby making it possible to more stably increase the generated current and generated voltage generated in the coil.

[0040] (18) One aspect of the present invention is a power generation device according to any one of (1) to (17), wherein the circuit member may include a rectifier that rectifies a current generated in the coil, and a power storage unit that supplies the current rectified by the rectifier to a wireless communication unit.

[0041] According to the above configuration, it is possible to eliminate the need to replace or charge the power source, and to prevent the wireless communication unit from stopping operation when the power generation device is in use, thereby further improving the convenience of the power generation device.

[0042] (19) One aspect of the present invention is the power generating device according to (18), wherein the circuit member may include a first substrate on which at least one of the rectification unit, the power storage unit, and the wireless communication unit is mounted.

[0043] According to the above-described configuration, an increase in the number of substrates included in the circuit components can be suppressed, and therefore an increase in the number of parts in the power generating device can be suppressed, and therefore an increase in the number of assembly steps and manufacturing costs of the power generating device can be suppressed.

[0044] (20) One aspect of the present invention is a power generation device as described in any of (1) to (19), further comprising an operating member configured to be operated by a user, wherein the oscillating member may be configured to oscillate in the first direction in response to operation of the operating member by the user.

[0045] According to the above configuration, a user can operate the operating member to cause the coil to generate a power generation current, thereby further improving the convenience of the power generation device.

[0046] (21) One aspect of the present invention is the power generation device described in (20), which may further include a swing-inducing member configured to swing the swinging member in the first direction in response to operation of the operating member by a user.

[0047] According to the above configuration, a user can operate the operating member to cause the coil to generate a power generation current, thereby further improving the convenience of the power generation device.

[0048] (22) One aspect of the present invention that solves the above-mentioned problems is a control device that controls the operation of a driven device, comprising: the power generation device described in (20) or (21); and a control unit that controls a wireless communication unit to wirelessly transmit a command signal to the driven device in response to operation of the operating member by a user.

[0049] According to the above configuration, since a user can operate the driven device by operating the operating member, the convenience of the control device and the driven device can be improved.

[0050] (23) One aspect of the present invention is the control device according to (22), wherein the control unit is implemented on the circuit member.

[0051] According to the above configuration, compared to a configuration having a separate circuit member for mounting the control unit, it is possible to suppress an increase in the number of parts of the control device, and therefore it is possible to suppress an increase in the number of assembly steps and manufacturing costs of the power generation device and the control device.

[0052] (24) One aspect of the present invention is the control device described in (22) or (23), wherein the control unit may be configured to generate the command signal based on information regarding a voltage generated in the coil.

[0053] According to the above configuration, the driven device can be caused to perform an operation based on the user's operation. Therefore, the user can cause the driven device to perform a desired operation by operating the operating member, thereby improving the convenience of the control device and the driven device.

[0054] (25) One aspect of the present invention is a control device described in any of (22) to (24), wherein the control device and the driven device are configured to be mounted on a human-powered vehicle, and the driven device may have an actuator.

[0055] According to the above configuration, the user can cause the driven device to perform a desired operation by operating the operating member, thereby improving the convenience of the human-powered vehicle.

[0056] (26) One aspect of the present invention is the control device described in any one of (22) to (25), wherein the driven device may include at least one of a transmission, an adjustable seat post, a suspension, a braking device, a drive unit, and a lamp attached to a human-powered vehicle.

[0057] According to the above configuration, the user can cause at least one of the gear shifter, the adjustable seat post, the suspension, the drive unit, and the lamp to perform a desired operation by simply pressing the operating member, thereby improving the convenience of the human-powered vehicle. Effect of the Invention

[0058] According to the present invention, it is possible to obtain an effect that the stability of the operation of a power generation device and a control device can be improved. [Brief description of the drawings]

[0059] [Figure 1] FIG. 2 is a perspective view illustrating a configuration example of a control device according to an embodiment. [Diagram 2] 4 is a diagram showing a configuration example of a control device according to an embodiment as viewed from the other side in the first direction. FIG. [Diagram 3] 3 is a cross-sectional view showing a configuration example of a control device according to an embodiment, and is a cross-sectional view taken along line III-III in FIG. 2. [Figure 4] FIG. 2 is a perspective view showing a part of a configuration example of a control device according to an embodiment; [Diagram 5] FIG. 2 is a block diagram showing a configuration example of a control device according to an embodiment; [Figure 6] 1 is a cross-sectional view of an example of the configuration of a control device according to an embodiment when an operating member is pressed. FIG. [Figure 7] 13 is a diagram showing a configuration example of a control device according to a first modified example of an embodiment, as viewed from the other side in the first direction. FIG. [Figure 8] 8 is a cross-sectional view showing a configuration example of a control device according to a first modified example of the embodiment, and is a cross-sectional view taken along line VIII-VIII in FIG. 7. [Figure 9]13 is a diagram showing a configuration example of a control device according to a second modified example of an embodiment, as viewed from the other side in the first direction. FIG. [Figure 10] 10 is a cross-sectional view showing a configuration example of a control device according to a second modified example of an embodiment, and is a cross-sectional view taken along line XX in FIG. 9. [Figure 11] FIG. 11 is a cross-sectional view showing a configuration example of a control device according to a third modified example of the embodiment. [Figure 12] FIG. 13 is a block diagram showing an example of the configuration of a control device according to a fourth modified example of the embodiment. [Figure 13] FIG. 13 is a block diagram showing an example of the configuration of a control device according to a fifth modified example of the embodiment. [Figure 14] FIG. 13 is a block diagram showing an example of the configuration of a control device according to a sixth modified example of the embodiment. [Figure 15] FIG. 13 is a block diagram showing an example of the configuration of a control device according to a seventh modified example of the embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0060] In the following description, a first direction D1 is shown in each figure as appropriate. The first direction D1 is the direction in which the oscillating member oscillates in the embodiment described below. In the following description, the side toward which the arrow of the first direction D1 points (+D1 side) is referred to as "one side of the first direction D1," and the side opposite to the side toward which the arrow of the first direction D1 points (-D1 side) is referred to as "the other side of the first direction D1."

[0061] The second direction D2 is shown in each figure as appropriate. The second direction D2 is a direction different from the first direction D1. In the embodiment described below, the second direction D2 is a direction perpendicular to the first direction D1. In the following description, the side toward which the arrow of the second direction D2 points (+D2 side) is referred to as "one side of the second direction D2," and the side opposite to the side toward which the arrow of the second direction D2 points (-D2 side) is referred to as "the other side of the second direction D2."

[0062] In each figure, the third direction D3 is appropriately shown. The third direction D3 is a direction that intersects with both the first direction D1 and the second direction D2. In the embodiment shown below, the third direction D3 is a direction that is perpendicular to both the first direction D1 and the second direction D2. In the following description, the side toward which the arrow of the third direction D3 points (+D3 side) is referred to as "one side of the third direction D3," and the side opposite to the side toward which the arrow of the third direction D3 points (-D3 side) is referred to as "the other side of the third direction D3."

[0063] <Embodiment> FIG. 1 is a perspective view showing a configuration example of the control device 10 of this embodiment. FIG. 2 is a view of the configuration example of the control device 10 of this embodiment as viewed from the other side (-D1 side) of the first direction D1. Note that FIG. 2 shows the control device 10 with a cover part 17, which will be described later, removed. FIG. 3 is a cross-sectional view showing the configuration example of the control device 10 of this embodiment, taken along III-III in FIG. 2. FIG. 4 is a perspective view showing a part of the configuration example of the control device 10 of this embodiment.

[0064] The control device 10 of this embodiment shown in FIG. 1 is attached to a human-powered vehicle 80 such as a bicycle (not shown) and controls the operation of a driven device 81 attached to the human-powered vehicle 80 (see FIG. 5). The control device 10 and the driven device 81 are configured to be attached to the human-powered vehicle 80. The driven device 81 has an actuator. The driven device 81 includes at least one of a transmission, an adjustable seat post, a suspension, a drive unit, and a lamp that are attached to the human-powered vehicle 80. The transmission includes an external transmission and an internal transmission. The external transmission includes a rear derailleur and a front derailleur. The drive unit is a unit that assists the propulsion of the human-powered vehicle 80. As shown in FIG. 3, the control device 10 includes a power generation device 20, a detection member 40, and a control unit 90.

[0065] The power generating device 20 is an inverse magnetostrictive power generating device. The power generating device 20 includes a housing 15, a yoke 21, a swinging member 22, a coil 26, a magnetic flux generating member 27, an operation unit 30, and a circuit member 60. The swinging member 22 includes a magnetostrictive member 23. The swinging member 22 includes a frame 24.

[0066] As shown in FIG. 1, the housing 15 has a substantially rectangular box shape. The housing 15 may have other shapes such as a cylindrical shape. As shown in FIG. 3, the housing 15 accommodates the swinging member 22, the coil 26, and other parts of the power generating device 20, the detection member 40, and the control unit 90. The housing 15 is formed to include a non-magnetic material. In other words, the housing 15 is at least partially formed of a non-magnetic material. In this embodiment, the housing 15 is formed of a magnetic material. In this embodiment, the entire housing 15 is formed of a non-magnetic material. For example, the housing 15 is formed of a non-magnetic metal such as aluminum and stainless steel, and a resin. The housing 15 may include a magnetic material. In this case, the housing 15 may have non-magnetic properties as a whole. In this embodiment, the housing 15 is made of a resin. The housing 15 has a housing main body 16 and a lid 17.

[0067] 3, the housing body 16 has a rectangular tubular shape that opens to the other side (-D1 side) in the first direction D1. The housing body 16 has a side wall portion 16a and a bottom wall portion 16b.

[0068] As shown in Fig. 1, the side wall portion 16a has a rectangular tubular shape extending in the first direction D1. As shown in Fig. 2, when viewed from the first direction D1, the long side of the side wall portion 16a extends in the second direction D2, and the short side of the side wall portion 16a extends in the third direction D3. As shown in Fig. 3, the side wall portion 16a surrounds each part of the power generating device 20, such as the yoke 21, the magnetostrictive member 23, and the coil 26, the detection member 40, and the circuit member 60. The bottom wall portion 16b has a plate shape extending in a direction perpendicular to the first direction D1. The outer edge of the bottom wall portion 16b is connected to the side wall portion 16a.

[0069] 1, the lid portion 17 is in the shape of a plate extending in a direction perpendicular to the first direction D1. The lid portion 17 is fixed to the housing body portion 16. The lid portion 17 closes the opening of the housing body portion 16. The lid portion 17 is provided with an insertion hole 17a.

[0070] The insertion hole 17a is a substantially square hole penetrating the lid portion 17 in the first direction D1. The insertion hole 17a may be another shape, such as a circle. The insertion hole 17a is provided near the center of the lid portion 17 in the third direction D3 and on one edge portion (+D2 side) in the second direction D2.

[0071] As shown in FIG. 2, the yoke 21 has a substantially L-shape when viewed from the first direction D1. The yoke 21 is formed to include a magnetic material. In other words, the yoke 21 is at least partially formed of a magnetic material. In this embodiment, the yoke 21 is formed of a magnetic material. In this embodiment, the entire yoke 21 is formed of a magnetic material. The material of the yoke 21 is not particularly limited, and the yoke 21 is formed of, for example, soft magnetic steel. The yoke 21 may be formed of, for example, SS400, which is a type of soft magnetic steel. The yoke 21 may include both a magnetic material and a non-magnetic material. The yoke 21 supports at least one of the magnetostrictive member 23 and the frame 24. In this embodiment, the yoke 21 supports both the magnetostrictive member 23 and the frame 24. The yoke 21 has a first yoke portion 21a and a second yoke portion 21b.

[0072] The first yoke portion 21a has a substantially rectangular parallelepiped shape extending in the third direction D3. The first yoke portion 21a has a first yoke end portion 21p and a second yoke end portion 21q. The second yoke end portion 21q is an end portion opposite to the first yoke end portion 21p in the third direction D3. The second yoke end portion 21q is located on the other side in the third direction D3 than the first yoke end portion 21p. The first yoke portion 21a is located on the other side (-D2 side) in the second direction D2 than the coil 26. The first yoke portion 21a is fixed to the side wall portion 16a.

[0073] The second yoke portion 21b has a substantially rectangular parallelepiped shape extending in the second direction D2. The second yoke portion 21b has a third yoke end 21r and a fourth yoke end 21s. The fourth yoke end 21s is an end opposite to the third yoke end 21r in the second direction D2. The fourth yoke end 21s is located on the other side of the third yoke end 21r in the second direction D2. The second yoke portion 21b is disposed on one side (+D3 side) of the magnetostrictive member 23 and the coil 26 in the third direction D3. The second yoke portion 21b faces the magnetostrictive member 23 and the coil 26 at an interval in the third direction D3. The second yoke portion 21b is connected to the first yoke portion 21a. The first yoke end 21p of the first yoke portion 21a may be connected to the fourth yoke end 21s of the second yoke portion. The second yoke end 21q of the first yoke portion 21a does not need to be connected to the third yoke end 21r of the second yoke portion. The first yoke end 21p of the first yoke portion 21a may be connected to a portion of the second yoke portion other than the fourth yoke end 21s. The portion of the first yoke portion other than the first yoke end 21p may be connected to the fourth yoke end 21s of the second yoke portion. In this embodiment, the first yoke portion 21a is formed integrally with the second yoke portion 21b. The second yoke portion 21b is fixed to a surface of the side wall portion 16a facing the other side (-D3 side) in the third direction D3.

[0074] 4, the yoke 21 is composed of a plurality of yoke plates 21d, an intermediate yoke plate 21g, and an annular plate 21i. The plurality of yoke plates 21d, the intermediate yoke plate 21g, and the annular plate 21i are fixed to one another by crimp pins 29.

[0075] The yoke plate 21d has a plate shape that extends in a direction perpendicular to the first direction D1. When viewed from the first direction D1, each of the yoke plates 21d has a substantially L-shape. A first portion 21k that is a portion of each of the yoke plates 21d extending in the third direction D3 constitutes a first yoke portion 21a. A second portion 21m that is a portion of each of the yoke plates 21d extending in the second direction D2 constitutes a second yoke portion 21b. The multiple yoke plates 21d include a first yoke plate 21e and a second yoke plate 21f.

[0076] The first yoke plate 21e is disposed on the other side (-D1 side) of the intermediate yoke plate 21g in the first direction D1. In this embodiment, the multiple yoke plates 21d include three first yoke plates 21e. The number of first yoke plates 21e included in the multiple yoke plates 21d may be two or less, or may be four or more. The first yoke plates 21e are stacked in the first direction D1.

[0077] The second yoke plate 21f is disposed on one side (+D1 side) of the intermediate yoke plate 21g in the first direction D1. In this embodiment, the multiple yoke plates 21d include three second yoke plates 21f. The number of second yoke plates 21f included in the multiple yoke plates 21d may be two or less, or may be four or more. The second yoke plates 21f are stacked in the first direction D1.

[0078] Although not shown in the figure, the intermediate yoke plate 21g has a substantially L-shaped plate shape. The plate thickness direction of the intermediate yoke plate 21g is the first direction D1. The intermediate yoke plate 21g is disposed between the first yoke plate 21e and the second yoke plate 21f. The intermediate yoke plate 21g has a first intermediate yoke end (not shown) and a second intermediate yoke end (not shown). The second intermediate yoke end is an end opposite to the first intermediate yoke end in the third direction D3. The second intermediate yoke end is located on the other side of the first intermediate yoke end in the third direction D3. Although not shown in the figure, the second intermediate yoke end of the intermediate yoke plate 21g is located on one side (+D3 side) of the third direction D3 than the second yoke end 21q of the first yoke plate 21e and the fourth yoke end 21s of the second yoke plate 21f. The thickness of the intermediate yoke plate 21g in the first direction D1 is smaller than the length of the intermediate yoke plate 21g in the second direction D2. The thickness of the intermediate yoke plate 21g in the first direction D1 is smaller than the length in the third direction D3.

[0079] Although not shown in the drawings, the annular plate 21i has a circular plate shape. The plate thickness direction of the annular plate 21i is the first direction D1. The annular plate 21i is disposed opposite the intermediate yoke plate 21g in the third direction D3, with the magnetostrictive member 23 sandwiched therebetween. The annular plate 21i is disposed between the first yoke plate 21e and the second yoke plate 21f.

[0080] The frame 24 has a plate shape that spreads in a direction perpendicular to the first direction D1. In the first direction D1, the frame 24 is disposed between the intermediate yoke plate 21g and the second yoke plate 21f. The frame 24 is formed so as to include a nonmagnetic material. In other words, the frame 24 is at least partially formed of a nonmagnetic material. In this embodiment, the frame 24 is formed of a nonmagnetic material. In this embodiment, the entire frame 24 is formed of a nonmagnetic material. For example, the frame 24 is formed of stainless steel. The frame 24 may include a magnetic material. In this case, it is sufficient that the frame 24 has nonmagnetic properties as a whole. The frame 24 has a first frame portion 24a, a second frame portion 24b, and an extension portion 24c.

[0081] The first frame portion 24a has a plate shape extending in the third direction D3. When viewed from the first direction D1, the first frame portion 24a overlaps with the first yoke portion 21a. The first frame portion 24a contacts the first yoke plate 21e via the intermediate yoke plate 21g and the annular plate 21i. The first frame portion 24a contacts the second yoke plate 21f. The first frame portion 24a is fixed to the yoke 21 by a crimp pin 29.

[0082] The second frame portion 24b has a plate shape extending in the second direction D2. Although not shown in the drawings, the fourth yoke end portion 21s of the second frame portion 24b is connected to the first frame portion 24a. When viewed from the first direction D1, the second frame portion 24b overlaps with the second yoke portion 21b. The second frame portion 24b contacts the first yoke plate 21e via the intermediate yoke plate 21g. The second frame portion 24b contacts the second yoke plate 21f. The second frame portion 24b is fixed to the yoke 21 by a crimp pin 29.

[0083] As shown in FIG. 3, the extension portion 24c extends from the first frame portion 24a toward one side (+D2 side) of the second direction D2. When viewed from the first direction D1, the extension portion 24c has a substantially rectangular shape. As shown in FIG. 2, the extension portion 24c is disposed on one side of the first yoke portion 21a in the second direction D2 and on the other side (-D3 side) of the second yoke portion 21b in the third direction D3. The extension portion 24c is supported by the first yoke portion 21a via the first frame portion 24a so as to be swingable in the first direction D1. That is, the yoke 21 supports the frame 24 so as to be swingable in the first direction D1. As shown in FIG. 3, the extension portion 24c has a third end 24g and a fourth end 24h.

[0084] The third end 24g is an end of the extension portion 24c on one side (+D2 side) in the second direction D2. The fourth end 24h is an end of the extension portion 24c on the other side (-D2 side) in the second direction D2. The fourth end 24h is connected to the first frame portion 24a. The fourth end 24h contacts the yoke 21. As described above, the first frame portion 24a is fixed to the yoke 21. Thus, the extension portion 24c has a cantilever shape in which the fourth end 24h is supported by the yoke 21 via the first frame portion 24a and the third end 24g is a free end.

[0085] The magnetostrictive member 23 is accommodated inside the housing 15. The magnetostrictive member 23 has a plate shape extending in the second direction D2. The plate thickness direction of the magnetostrictive member 23 is the first direction D1. As shown in FIG. 4, the magnetostrictive member 23 has a substantially rectangular shape when viewed from the first direction D1. When viewed from the first direction D1, the magnetostrictive member 23 overlaps with the extension portion 24c. The magnetostrictive member 23 is attached to the extension portion 24c. That is, the magnetostrictive member 23 is attached to the frame 24. Thus, the magnetostrictive member 23 is provided to be able to swing in the first direction D1 together with the extension portion 24c with respect to the yoke 21. That is, the swinging member 22 is provided to be able to swing in the first direction D1 with respect to the yoke 21. As shown in FIG. 3, the magnetostrictive member 23 has a first end portion 23c and a second end portion 23d.

[0086] The first end 23c is an end of the magnetostrictive member 23 on one side (+D2 side) in the second direction D2. In this embodiment, the first end 23c overlaps with the third end 24g when viewed from the first direction D1. The second end 23d is an end of the magnetostrictive member 23 on the other side (-D2 side) in the second direction D2. The first end 23c is provided away from the second end 23d in the second direction D2. The second end 23d contacts the first yoke portion 21a. That is, the second end 23d contacts the yoke 21. Thus, the magnetostrictive member 23 has a cantilever shape in which the second end 23d is supported by the yoke 21 and the first end 23c is a free end.

[0087] In this embodiment, the oscillating member 22 has a first oscillating portion 22a and a second oscillating portion 22b. The first oscillating portion 22a includes a first end portion 23c and a third end portion 24g. The second oscillating portion 22b includes a second end portion 23d and a fourth end portion 24h. The first oscillating portion 22a may be a first oscillating end portion on one side (+D2 side) of the second direction D2 of the oscillating member 22. The second oscillating portion 22b may be a second oscillating end portion on the other side (-D2 side) of the second direction D2 of the oscillating member 22. The first oscillating portion 22a is provided away from the second oscillating portion 22b in the second direction D2. The second oscillating portion 22b contacts the first yoke portion 21a. That is, the second oscillating portion 22b contacts the yoke 21.

[0088] The magnetostrictive member 23 is formed so as to include a magnetostrictive material. The magnetostrictive member 23 is formed of, for example, an Fe-Ga alloy. The magnetic permeability of the magnetostrictive member 23 changes due to mechanical strain. Furthermore, the magnetostrictive member 23 has a magnetization direction that changes due to mechanical strain.

[0089] As shown in FIG. 4, in this embodiment, the coil 26 is wound around the extension portion 24c, the magnetostrictive member 23, and the frame 24. That is, in this embodiment, the coil 26 is attached to the oscillating member 22. That is, the coil 26 is attached to at least one of the yoke 21 and the oscillating member 22. The coil 26 may be attached to both the magnetostrictive member 23 and the yoke 21. As shown in FIG. 2, the coil 26 is disposed on one side (+D2 side) of the first yoke portion 21a in the second direction D2 and on the other side (-D3 side) of the third direction D3 of the second yoke portion 21b. The coil 26 has a first coil end 26c and a second coil end 26d. The second coil end 26d is an end opposite to the first coil end 26c in the second direction D2. The second coil end 26d is located on the other side of the second direction D2 of the first coil end 26c. The first coil end 26c of the coil 26 is located on the other side (-D2 side) in the second direction D2 of the first oscillation portion 22a. As shown in Fig. 3, the coil 26 is disposed on the other side (-D1 side) in the first direction D1 of the circuit member 60. Two connection wires 26a and 26b are drawn out from the coil 26.

[0090] In this embodiment, the connection wires 26a and 26b are drawn out from the coil 26 to one side (+D1 side) of the first direction D1. The connection wire 26a is connected to one end of the coil wire forming the coil 26. The connection wire 26b is connected to the other end of the coil wire forming the coil 26. The connection wires 26a and 26b are connected to a portion between the first coil end 26c and the second coil end 26d of the coil 26. A first distance L1 between a connection position where the coil 26 is connected to the connection wires 26a and 26b and the first oscillation part 22a is longer than a second distance L2 between the connection position and the second oscillation part 22b. The connection wires 26a and 26b are connected to the circuit member 60. As a result, the circuit member 60 is electrically connected to the coil 26 via the connection wires 26a and 26b. An induced current generated in the coil 26 is supplied to the circuit member 60 via the connection wires 26a and 26b.

[0091] As shown in FIG. 4, the magnetic flux forming member 27 is fixed to a surface of the second yoke portion 21b facing the other side (-D3 side) in the third direction D3. As shown in FIG. 2, the magnetic flux forming member 27 is disposed on one side (+D2 side) of the second direction D2 from the coil 26. The magnetic flux forming member 27 is disposed in line with the magnetostrictive member 23 and the second yoke portion 21b in the third direction D3. The magnetic flux forming member 27 is disposed between the yoke 21 and the oscillating member 22. The magnetic flux forming member 27 is disposed, for example, between the yoke 21 and the magnetostrictive member 23. The magnetic flux forming member 27 is disposed opposite the magnetostrictive member 23 with a gap in the third direction D3. The magnetic flux forming member 27 has a pair of magnetic poles. An N pole is formed on one surface of the magnetic flux forming member 27 facing the third direction D3. An S pole is formed on the other surface of the magnetic flux forming member 27 facing the third direction D3. The magnetic flux forming member 27 forms a magnetic flux that passes through the magnetostrictive member 23. As a result, a closed magnetic circuit Mc that passes through the magnetic flux forming member 27, the magnetostrictive member 23, and the yoke 21 is formed.

[0092] As described above, the magnetostrictive member 23 is formed to include a magnetostrictive material. Therefore, when the magnetostrictive member 23 oscillates in the first direction D1 together with the extension portion 24c, it is mechanically distorted. The magnetic permeability of the magnetostrictive member 23 varies as a result of the magnetostrictive member 23 being mechanically distorted. As a result, the magnetic flux passing through the magnetostrictive member 23 varies. When the magnetostrictive member 23 oscillates in the first direction D1, the magnetic flux passing through the closed magnetic circuit Mc, i.e., the magnetic flux passing through the inside of the coil 26, varies. The variation in the magnetic flux passing through the inside of the coil 26 generates an induced current in the coil 26. This allows the coil 26 to generate a power generation voltage Vg. In other words, the power generation device 20 generates power when the magnetostrictive member 23 oscillates in the first direction D1.

[0093] The operating unit 30 swings the swinging member 22 in a first direction D1 in response to an operation by a user. As shown in Fig. 3, the operating unit 30 is disposed on one side (+D2 side) of the magnetostrictive member 23 in the second direction D2. The operating unit 30 includes an operating member 31, a swing inducing member 32, an elastic member 33, and a detection member holder 34.

[0094] The operating member 31 extends in the first direction D1. The operating member 31 is inserted through the insertion hole 17a of the cover portion 17 in the first direction D1. The operating member 31 is movable in the first direction D1. Therefore, when the user presses the operating member 31 to one side (+D1 side) of the first direction D1, the operating member 31 is movable in the first direction D1. When the user presses the operating member 31 to one side of the first direction D1, the operating member 31 is configured to move in the first direction D1. In the following description, the "operation of pressing the operating member 31 to one side of the first direction D1" may be simply referred to as "operation". The operating member 31 is configured to be operated by the user. In the following description, the force with which the user presses the operating member 31 is referred to as a pressing force Fd. The pressing force Fd is a force directed to one side of the first direction D1. The operating member 31 has a main body portion 31a, a connection portion 31b, a depression portion 31c, and a pressing portion 31d.

[0095] 2 and 3, the main body 31a has a generally rectangular parallelepiped shape extending in the first direction D1. As shown in Fig. 2, when viewed from the first direction D1, the main body 31a has a generally rectangular shape with a long side extending in the third direction D3. The main body 31a may have another shape, such as a cylindrical shape extending in the first direction D1.

[0096] The connecting portion 31b has a generally rectangular parallelepiped shape protruding from the main body portion 31a to the other side (-D1 side) in the first direction D1. As shown in Fig. 2, the connecting portion 31b has a generally square shape when viewed from the first direction D1. The connecting portion 31b is movable inside the insertion hole 17a in the first direction D1.

[0097] The push-down portion 31c has a generally cylindrical shape protruding from the connecting portion 31b toward the other side (-D1 side) of the first direction D1. The push-down portion 31c may have other shapes, such as a rectangular column shape. As shown in FIG. 3, the other side (-D1 side) of the push-down portion 31c in the first direction D1 is located outside the housing 15. The push-down portion 31c is configured to be pushed in the first direction D1 by the user. When the user pushes down the push-down portion 31c, the operating member 31 moves to one side (+D1 side) of the first direction D1. The push-down portion 31c may be configured to be pushed directly by the user, or may be configured to be pushed indirectly via another member. In the following description, the position of the operating unit 30 when the user is not operating the operating member 31 as shown in FIG. 3 is referred to as the first position.

[0098] FIG. 6 is a cross-sectional view of the exemplary configuration of the control device 10 of this embodiment when the operating member 31 is operated. As shown in Fig. 3, the pressing portion 31d has a generally cylindrical shape protruding from the main body portion 31a to one side (+D1 side) in the first direction D1. In the first position, the pressing portion 31d is disposed at a distance from the detection member 40 in the first direction D1. As shown in Fig. 6, when the user operates the operation member 31, the pressing portion 31d comes into contact with the detection member 40 in the first direction D1. In the following description, the position of the operation portion 30 when the user is operating the operation member 31 is referred to as the second position.

[0099] The swinging motion inducing member 32 swings the magnetostrictive member 23 in the first direction D1 when the operating member 31 moves in the first direction D1. As shown in FIG. 3, the swinging motion inducing member 32 protrudes from the main body 31a to the other side of the second direction D2. The swinging motion inducing member 32 may be a single member identical to the operating member 31. The swinging motion inducing member 32 may be a member separate from the operating member 31. When viewed from the first direction D1, the swinging motion inducing member 32 overlaps with the magnetostrictive member 23 and the extension 24c. In the first position, the swinging motion inducing member 32 is located on the other side (-D1 side) of the magnetostrictive member 23 in the first direction D1. As shown in FIG. 6, in the second position, the swinging motion inducing member 32 is located on one side (+D1 side) of the extension 24c in the first direction D1.

[0100] As described above, in response to the operation of the operating member 31 by the user, the operating member 31 moves to one side (+D1 side) of the first direction D1. That is, the operating member 31 moves from the first position shown in FIG. 3 to the second position shown in FIG. 6. In the following description, the operation of the operating member 31 moving from the first position to the second position may be referred to as the first operation. In the first operation, the swing motion inducing member 32 presses the magnetostrictive member 23 to one side of the first direction D1, elastically deforming the extension portion 24c and the magnetostrictive member 23 to one side of the first direction D1. When the operating member 31 further moves to one side of the first direction D1, as shown in FIG. 6, the swing motion inducing member 32 moves to one side of the first direction D1 beyond the extension portion 24c. As a result, the magnetostrictive member 23 and the extension portion 24c swing in the first direction D1 due to the restoring force of the extension portion 24c. That is, the swing motion inducing member 32 is configured to swing the swing member 22 in the first direction D1 in response to the operation of the operating member 31 by the user. The swing member 22 is also configured to swing in the first direction D1 in response to the operation of the operating member 31 by the user. As described above, when the magnetostrictive member 23 swings in the first direction D1, the magnetic flux passing through the inside of the coil 26 fluctuates, and an induced current is generated in the coil 26. In the following description, such an induced current may be referred to as a generated current Ig.

[0101] As described above, the extension portion 24c has a cantilever shape with the fourth end 24h supported by the yoke 21 and the third end 24g as a free end. Also, as described above, the magnetostrictive member 23 has a cantilever shape with the second end 23d supported by the yoke 21 and the first end 23c as a free end. Therefore, in a state in which the oscillating member 22 oscillates in the first direction D1, the first amplitude A1 of the first end 23c and the third end 24g is larger than the second amplitude A2 of the second end 23d and the fourth end 24h. That is, the first amplitude A1 of the first oscillating portion 22a is larger than the second amplitude A2 of the second oscillating portion 22b. Therefore, in a state in which the oscillating member 22 oscillates in the first direction D1, the amplitude of the first coil end 26c of the coil 26 is larger than the amplitude of the second coil end 26d of the coil 26.

[0102] After the user releases the operation of the operating member 31, that is, after the user releases the pressing of the pressing portion 31c, the operating member 31 moves to the other side (-D1 side) of the first direction D1 due to the elastic force Fe applied to the operating member 31 from the elastic member 33 described later. That is, the operating member 31 moves from the second position to the first position. In the following description, the operation of the operating member 31 moving from the second position to the first position may be referred to as the second operation. In the second operation, the rocking motion inducing member 32 presses the extension portion 24c to the other side of the first direction D1, thereby elastically deforming the extension portion 24c and the magnetostrictive member 23 to the other side of the first direction D1. When the operating member 31 further moves to the other side of the first direction D1, the rocking motion inducing member 32 moves to the other side of the first direction D1 with respect to the magnetostrictive member 23, as shown in FIG. 3. At this time, the magnetostrictive member 23 and the extension portion 24c swing in the first direction D1 due to the restoring force of the extension portion 24c, and a generated current Ig is generated in the coil 26. The amplitude of the first coil end 26c of the coil 26 when the operating member 31 moves to the other side in the first direction D1 is larger than the amplitude of the second coil end 26d of the coil 26.

[0103] The detection member holding portion 34 holds the detection member 40. The detection member holding portion 34 is disposed on one side in the first direction D1 (the +D1 side) relative to the operation member 31. The detection member holding portion 34 has a bottom plate portion 34a and a cylindrical portion 34b.

[0104] The bottom plate portion 34a has a plate shape that expands in a direction perpendicular to the first direction D1. The bottom plate portion 34a is fixed to the bottom wall portion 16b of the housing 15. The tubular portion 34b has a generally cylindrical shape that protrudes from the bottom plate portion 34a to the other side in the first direction D1. The tubular portion 34b opens to one side (+D1 side) in the first direction D1.

[0105] The elastic member 33 is disposed between the operating member 31 and the detection member holding portion 34. In this embodiment, the elastic member 33 is a compression coil spring. The elastic member 33 expands and contracts in the first direction D1. The elastic member 33 is supported by the cylindrical portion 34b. The elastic member 33 has a first elastic member end 33a and a second elastic member end 33b. The second elastic member end 33b is an end opposite to the first elastic member end 33a in the first direction D1. The second elastic member end 33b is located on the other side of the first direction D1 than the first elastic member end 33a. The second elastic member end 33b of the elastic member 33 contacts the main body portion 31a in the first direction D1. As a result, the elastic member 33 applies an elastic force Fe to the operating member 31 that faces the other side of the first direction D1. The elastic member 33 biases the operating member 31 toward one side of the first direction D1. As a result, the operating member 31 moves toward the first position. Therefore, when the user releases the pressure on the depressing portion 31c as shown in Fig. 6, the operating member 31 moves to the other side in the first direction D1 due to the elastic force Fe, and returns to the first position shown in Fig. 3.

[0106] The detection member 40 is disposed on one side (+D1 side) of the operation member 31 in the first direction D1. In the first position, the detection member 40 is disposed at a distance from the pressing portion 31d in the first direction D1. As shown in FIG. 6, in the second position, the detection member 40 comes into contact with the pressing portion 31d. This allows the detection member 40 to detect that the user has operated the operation member 31. That is, the detection member 40 is configured to detect the operation of the operation member 31 by the user. The configuration of the detection member 40 is not limited to that of this embodiment, and may be a sensor such as an optical sensor capable of detecting the movement of the operation member 31 in the first direction D1. The detection member 40 has a detection connection line 41.

[0107] The detection connection line 41 connects the detection member 40 and the circuit member 60. As a result, the detection member 40 is electrically connected to the circuit member 60. As shown in Fig. 5, when the detection member 40 detects that the operation member 31 is pressed, it transmits a detection signal S1 to a detection unit 64 described later.

[0108] As shown in FIG. 2 and FIG. 3, the circuit member 60 is disposed inside the housing 15. As shown in FIG. 3, the circuit member 60 is disposed on one side (+D1 side) of the yoke 21, the frame 24, the magnetostrictive member 23, and the coil 26 in the first direction D1. As shown in FIG. 2, the circuit member 60 at least partially overlaps at least one of the yoke 21, the coil 26, and the oscillating member 22 when viewed from the first direction D1. As shown in FIG. 3 and FIG. 5, in this embodiment, the circuit member 60 includes a substrate 65, a connection section 61, a rectification section 62, a power storage section 63, a wireless communication section 70, and a detection section 64. A control section 90 is mounted on the substrate 65. The substrate 65 includes at least one of a flexible printed circuit board (FPC) having flexibility and a printed circuit board (PCB). The substrate 65 includes a first substrate 66. The substrate 65 may include the first substrate 66 and a plurality of substrates different from the first substrate 66. When the substrate 65 has a plurality of substrates, the wireless communication unit 70 is mounted on the first substrate 66.

[0109] In this embodiment, the first substrate 66 is mounted with the connection unit 61, the rectification unit 62, the power storage unit 63, the wireless communication unit 70, the detection unit 64, and the control unit 90. That is, at least one of the rectification unit 62, the power storage unit 63, and the wireless communication unit 70 is mounted on the first substrate 66. In this embodiment, the first substrate 66 includes, for example, a flexible substrate. As shown in FIG. 3, the first substrate 66 has a plate shape that extends in a direction perpendicular to the first direction D1. The plate thickness direction of the first substrate 66 is the first direction D1. The first substrate 66 has a first surface 66a and a second surface 66b.

[0110] The first surface 66a is a surface of the outer surface of the first substrate 66 facing one side (+D1 side) of the first direction D1. The first surface 66a faces the bottom wall portion 16b in the first direction D1. The first surface 66a faces none of the yoke 21, the coil 26, the magnetostrictive member 23, and the frame 24. That is, the first surface 66a faces none of the yoke 21, the coil 26, and the oscillating member 22 at least partially. The second surface 66b is a surface of the outer surface of the first substrate 66 facing the other side (-D1 side) of the first direction D1. The second surface 66b faces the opposite side to the first surface 66a. That is, the circuit member 60 has a substrate 65 having the first surface 66a and the second surface 66b opposite to the first surface 66a. The second surface 66b faces the yoke 21, the coil 26, and the magnetostrictive member 23 in the first direction D1.

[0111] The connection portion 61 connects the connection wires 26a, 26b of the coil 26 to the substrate 65. The connection portion 61 is formed by, for example, solder that connects the connection wires 26a, 26b to the substrate 65. In this embodiment, the connection portion 61 is mounted on the second surface 66b of the first substrate 66. The connection portion 61 is connected to the connection wires 26a, 26b. The first substrate 66 has two connection portions 61. The connection wire 26a is connected to one connection portion 61, and the connection wire 26b is connected to the other connection portion 61. As a result, the circuit member 60 is electrically connected to the coil 26 via the connection wires 26a, 26b. Therefore, when the power generation device 20 generates power, as shown in FIG. 5, the generated current Ig flows into the connection portion 61, and the generated voltage Vg, which is the electromotive force of the generated current Ig, is applied to the connection portion 61. As a result, the control device 10 can drive the circuit member 60 by the power generated in the power generation device 20.

[0112] The rectifier 62 rectifies the generated current Ig, i.e., the current generated in the coil 26. The rectifier 62 is equipped with electronic elements such as a capacitor (not shown). The rectifier 62 is connected to the connection unit 61. The rectifier 62 includes an AC / DC converter capable of converting AC current into DC current. The generated current Ig that flows into the rectifier 62 via the connection unit 61 is rectified by the rectifier 62 into a rectified current Ir.

[0113] The power storage unit 63 supplies the rectified current Ir to the wireless communication unit 70, the detection unit 64, and the control unit 90. The power storage unit 63 also stores the rectified current Ir. In this embodiment, the power storage unit 63 is a secondary battery. The power storage unit 63 is connected to the rectification unit 62, the detection unit 64, and the control unit 90. A transformer unit such as a DC / DC converter may be provided between the power storage unit 63 and the control unit 90.

[0114] The control unit 90 is mounted on the circuit member 60. The control unit 90 is connected to the power storage unit 63, the wireless communication unit 70, and the detection unit 64. The control unit 90 can detect information related to the generated voltage Vg. In this embodiment, the information related to the generated voltage Vg includes at least one of the voltage value and frequency of the generated voltage Vg and the current value of the generated current Ig. The control unit 90 is also electrically connected to the detection member 40 via the detection unit 64 and the detection connection line 41. This allows the control unit 90 to detect the detection signal S1 transmitted by the detection member 40. The control unit 90 generates a command signal Sc based on the information related to the generated voltage Vg and the detection signal S1. That is, the control unit 90 is configured to generate the command signal Sc based on the information related to the generated voltage Vg, i.e., the voltage generated in the coil 26. The control unit 90 is also configured to generate the command signal Sc based on the detection signal S1 transmitted from the detection member 40. That is, the control unit 90 generates a command signal Sc based on the generated voltage Vg generated by the user's operation of the operating member 31 and the detection signal S1 generated by the user's operation of the operating member 31. The control unit 90 transmits the generated command signal Sc to the wireless communication unit 70. In the following description, the command signal Sc may be simply referred to as a "signal."

[0115] The control unit 90 is a computer that generates a command signal Sc based on information related to the generated voltage Vg and the detection signal S1, and transmits the command signal Sc to the wireless communication unit 70. A control program executed by the control unit 90 is installed in the control unit 90. At least a part of the functions of the control unit 90 is realized by, for example, a processor such as a CPU (Central Processing Unit) executing a control program, i.e., software, stored in a storage unit (not shown).

[0116] At least a part of the functions of the control unit 90 may be realized by hardware including circuit units such as a large scale integration (LSI), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA), and a graphics processing unit (GPU), or may be realized by a combination of software and hardware. The control unit 90 may include a storage unit (not shown). In this case, the storage unit (not shown) is realized by a storage medium such as a random access memory (RAM), a read only memory (ROM), a hard disk drive (HDD), and a flash memory.

[0117] The wireless communication unit 70 is connected to the control unit 90. The wireless communication unit 70 is supplied with the rectified current Ir from the power storage unit 63 via the control unit 90, and the wireless communication unit 70 is driven by the rectified current Ir. As described above, the control unit 90 transmits a command signal Sc to the wireless communication unit 70. The wireless communication unit 70 includes a wireless device 71 and an antenna 72. The wireless communication unit 70 transmits the command signal Sc to the driven device 81 of the human-powered vehicle 80 via the antenna 72. That is, the wireless communication unit 70 is configured to wirelessly transmit the command signal Sc to the driven device 81. The control unit 90 controls the wireless communication unit 70 to wirelessly transmit the command signal Sc to the driven device 81 in response to the operation of the operating member 31 by the user. As shown in FIG. 3, the wireless communication unit 70 is provided on the first surface 66a of the first substrate 66. Therefore, the wireless communication unit 70 does not face any of the yoke 21, the coil 26, the magnetostrictive member 23, and the frame 24 in the first direction D1. In other words, the wireless communication unit 70 does not face at least partially any of the yoke 21, the coil 26, and the oscillating member 22.

[0118] The wireless device 71 is mounted on the wireless communication unit 70. The wireless device 71 is mounted on the first surface 66a of the circuit member 60. As shown in FIG. 5 , the wireless device 71 is electrically connected to the power storage unit 63 and the antenna 72. The wireless device 71 is configured to transmit a command signal Sc transmitted from the power storage unit 63 to the driven device 81. The wireless device 71 is configured to transmit the command signal Sc to the driven device 81 via the antenna 72.

[0119] The antenna 72 is configured to wirelessly transmit the command signal Sc to the outside of the power generation device 20. That is, the command signal Sc created based on the user's operation can be transmitted to the driven device 81 by the antenna 72. This allows the user to operate the driven device 81 by operating the operating member 31. Note that the communication method between the wireless device 71 and the driven device 81 is not particularly limited, and may be, for example, short-distance wireless communication such as BLE (Bluetooth Low Energy), NFC (Near Field Communication), and ANT. The antenna 72 may be a circuit pattern formed in the wireless communication unit 70, or may be an element mounted on the wireless communication unit 70. The antenna 72 may be modularized with the wireless device 71.

[0120] As shown in FIG. 3, the antenna 72 is provided on the first surface 66a of the first substrate 66. Therefore, the antenna 72 does not face any of the yoke 21, the coil 26, and the magnetostrictive member 23. Also, as shown in FIG. 2, the antenna 72 is offset from the yoke 21, the coil 26, the magnetostrictive member 23, and the frame 24 when viewed from the first direction D1. That is, the antenna 72 is offset from the yoke 21, the coil 26, and the oscillating member 22 when viewed from the first direction D1. As a result, the antenna 72 does not face at least partially any of the yoke 21, the coil 26, and the oscillating member 22. Also, as described above, the housing 15 is configured to include a nonmagnetic material and has nonmagnetic properties as a whole. Therefore, in the power generating device 20 and the control device 10 of this embodiment, the command signal Sc wirelessly transmitted from the antenna 72 can be prevented from being magnetically shielded by the yoke 21, the coil 26, the magnetostrictive member 23, and the housing 15. In other words, the antenna 72 is disposed in a non-shielded position that allows the command signal Sc to reach the outside of the housing 15 .

[0121] As shown in FIG. 3, the detection unit 64 is connected to the detection member 40 via the detection connection line 41. As shown in FIG. 5, the detection unit 64 is connected to the power storage unit 63 and the control unit 90. As described above, the detection unit 64 is supplied with the rectified current Ir from the power storage unit 63. This drives the detection unit 64 and the detection member 40. In this embodiment, the detection unit 64 detects the type of signal transmitted from the detection member 40. The detection unit 64 detects whether the signal transmitted from the detection member 40 is a Low signal or a High signal. The detection unit 64 transmits the detection signal S1 transmitted from the detection member 40 to the control unit 90. The detection unit 64 may be integrated with the control unit 90.

[0122] As described above, when the detection member 40 detects that the user has operated the operating member 31, a detection signal S1 is transmitted to the control unit 90. As a result, the control unit 90 can detect that the user has operated the operating member 31, and the control unit 90 transmits a command signal Sc to the wireless communication unit 70, and transmits the command signal Sc to the driven device 81 via the antenna 72. Thus, the user can operate the driven device 81 by operating the operating member 31.

[0123] Furthermore, as described above, when the user operates the operating member 31, the magnetostrictive member 23 vibrates in the first direction D1, and the rectified current Ir flows into the control unit 90. That is, the control unit 90 can detect that the user has operated the operating member 31 by detecting the rectified current Ir. Furthermore, when information on the generated voltage Vg changes depending on the pressing force Fd (see FIG. 3) that is the force with which the user presses down the pressable portion 31c of the operating member 31, the control unit 90 may generate a different command signal Sc according to the information on the generated voltage Vg and transmit it to the driven device 81. In this case, the user can operate the operating member 31 with different pressing forces Fd to cause the driven device 81 to perform different operations, thereby improving the convenience of the control device 10 and the driven device 81.

[0124] In this embodiment, the first substrate 66 may be attached to the coil 26 as shown in Fig. 3. In this case, it is preferable to use a flexible flat cable (FFC) or a flexible printed circuit (FPC) as the first substrate 66. In this case, it is preferable that the position where the first substrate 66 is attached to the coil 26 is the second coil end 26d side of the coil 26. In this case, it is preferable to arrange the wireless communication unit 70 so that it does not swing together with the coil 26.

[0125] According to this embodiment, the power generating device 20 includes a yoke 21, a rocking member 22 including a magnetostrictive member 23 and arranged to be rockable in a first direction D1 relative to the yoke 21, a coil 26 attached to at least one of the yoke 21 and the rocking member 22, a circuit member 60 electrically connected to the coil 26, and a housing 15 that accommodates the yoke 21, the rocking member 22, and the circuit member 60, and the circuit member 60 includes a wireless communication unit 70 configured to wirelessly transmit a command signal Sc, i.e., a signal. Therefore, the command signal Sc can be stably wirelessly transmitted to the outside of the power generating device by the wireless communication unit 70, thereby improving the stability of the operation of the power generating device 20.

[0126] According to this embodiment, the wireless communication unit 70 does not at least partially face any of the yoke 21, the coil 26, and the oscillating member 22. This makes it possible to prevent the command signal Sc wirelessly transmitted by the wireless communication unit 70 from being magnetically shielded by the yoke 21, the coil 26, and the magnetostrictive member 23, and therefore makes it possible to stably transmit the command signal Sc to the outside of the power generating device 20. This makes it possible to improve the stability of the operation of the power generating device 20.

[0127] According to this embodiment, the wireless communication unit 70 includes an antenna 72 configured to wirelessly transmit a signal to the outside of the power generation device 20, and a wireless device 71 electrically connected to the antenna 72 and configured to transmit a command signal Sc to the antenna 72. Since the command signal Sc can be wirelessly transmitted by the antenna 72, the command signal Sc can be more stably transmitted to the outside of the power generation device 20. This makes it possible to more suitably improve the stability of the operation of the power generation device 20.

[0128] According to this embodiment, the antenna 72 does not at least partially face any of the yoke 21, the coil 26, and the oscillating member 22. This more suitably prevents the command signal Sc wirelessly transmitted by the antenna 72 from being magnetically shielded by the yoke 21, the coil 26, and the magnetostrictive member 23, so that the command signal Sc can be more stably transmitted to the outside of the power generating device 20. This more suitably improves the stability of the operation of the power generating device 20.

[0129] According to this embodiment, the antenna 72 is disposed at a non-shielded position that allows a signal to reach the outside of the housing 15. This makes it possible to more suitably prevent the command signal Sc wirelessly transmitted by the antenna 72 from being magnetically shielded by the yoke 21, the coil 26, and the magnetostrictive member 23, and therefore makes it possible to more stably transmit the command signal Sc to the outside of the power generating device 20. This makes it possible to more suitably improve the stability of the operation of the power generating device 20.

[0130] According to this embodiment, the antenna 72 is offset from the yoke 21, the coil 26, and the oscillating member 22 when viewed from the first direction D1. Therefore, the command signal Sc wirelessly transmitted by the antenna 72 can be transmitted in the first direction D1 through between the yoke 21, the coil 26, and the magnetostrictive member 23. Therefore, the direction in which the command signal Sc can be transmitted to the outside of the power generating device 20 can be preferably expanded, and the command signal Sc can be more stably transmitted to the outside of the power generating device 20. Therefore, the stability of the operation of the power generating device 20 can be more preferably improved.

[0131] According to this embodiment, the circuit member 60 includes a substrate 65 having a first surface 66a and a second surface 66b opposite to the first surface 66a, and the wireless communication unit 70 is provided on the first surface 66a, which does not at least partially face any of the yoke 21, the coil 26, and the oscillating member 22. Therefore, the wireless communication unit 70 can wirelessly transmit the command signal Sc in a direction opposite to the direction facing the yoke 21, the coil 26, and the magnetostrictive member 23, and therefore the command signal Sc can be more suitably prevented from being magnetically shielded by the yoke 21, the coil 26, and the magnetostrictive member 23. Therefore, the command signal Sc can be more stably transmitted to the outside of the power generating device 20, and therefore the stability of the operation of the power generating device 20 can be more suitably improved.

[0132] According to this embodiment, the circuit member 60 at least partially overlaps with at least one of the yoke 21, the coil 26, and the oscillating member 22 when viewed from the first direction D1. Therefore, compared to a configuration in which the circuit member 60 does not overlap with each of the yoke 21, the coil 26, and the magnetostrictive member 23 when viewed from the first direction D1, it is possible to prevent the power generating device 20 from increasing in size in each of the second direction D2 and the third direction D3. Therefore, the power generating device 20 can be easily incorporated into a narrow space, and the convenience of the power generating device 20 can be improved.

[0133] According to the present embodiment, the housing 15 is formed to include a non-magnetic material. This can prevent the command signal Sc transmitted from the wireless communication unit 70 from being magnetically shielded by the housing 15. This can more stably transmit the command signal Sc to the outside of the power generation device 20, thereby more suitably improving the stability of the operation of the power generation device 20.

[0134] In addition, in this embodiment, since the housing 15 is made of resin, the weight of the housing 15 can be reduced compared to when the housing 15 is made of a non-magnetic metal. Therefore, the weight of the power generating device 20 can be reduced, and the convenience of the power generating device 20 can be further improved.

[0135] Furthermore, in this embodiment, since the housing 15 is made of a non-magnetic material, it is possible to prevent magnetic flux from leaking out from the closed magnetic circuit Mc formed among the yoke 21, the magnetic flux generating member 27, and the magnetostrictive member 23 to the housing 15. This makes it possible to prevent a decrease in the magnetic flux density of the magnetic flux passing through the closed magnetic circuit Mc, thereby preventing a decrease in the generated current Ig and the generated voltage Vg generated in the coil 26, and also prevents a decrease in the power generation efficiency of the power generation device 20.

[0136] In addition, as described above, in this embodiment, since it is possible to prevent magnetic flux from leaking from the closed magnetic circuit Mc to the housing 15, it is possible to reduce the gaps provided between the housing 15 and the yoke 21 and between the housing 15 and the magnetostrictive member 23. Therefore, it is possible to prevent the housing 15 from becoming large, and therefore it is possible to prevent the power generation device 20 from becoming large.

[0137] According to this embodiment, the coil 26 is attached to the oscillating member 22, and the circuit member 60 is electrically connected to the coil 26 via the connection lines 26a and 26b. When the oscillating member 22 oscillates in the first direction D1, the first amplitude A1 of the first oscillating portion 22a of the oscillating member 22 is greater than the second amplitude A2 of the second oscillating portion 22b of the oscillating member 22, and the first distance L1 between the connection position where the coil 26 is connected to the connection lines 26a and 26b and the first oscillating portion 22a is longer than the second distance L2 between the connection position and the second oscillating portion 22b. Therefore, when the oscillating member 22 oscillates in the first direction D1, the amplitude of the connection lines 26a and 26b oscillating in the first direction D1 can be prevented from increasing. This makes it easier to reduce the stress applied to the connection lines 26a and 26b, and therefore makes it easier to prevent the connection lines 26a and 26b from breaking. Therefore, the coil 26 and the circuit member 60 can be electrically connected in a stable manner, so that the stability of the operation of the power generating device 20 can be improved in a more suitable manner.

[0138] According to this embodiment, the power generating device 20 includes a yoke 21, a oscillating member 22 that includes a magnetostrictive member 23 and is arranged to be oscillable in a first direction D1 relative to the yoke 21, a coil 26 attached to the oscillating member 22, and a circuit member 60 that is electrically connected to the coil 26 via connecting wires 26a, 26b, and when the oscillating member 22 oscillates in the first direction D1, a first amplitude A1 of a first oscillating portion 22a of the oscillating member 22 is greater than a second amplitude A2 of a second oscillating portion 22b of the oscillating member 22, and a first distance L1 between the connection position where the coil 26 is connected to the connecting wires 26a, 26b and the first oscillating portion 22a is longer than a second distance L2 between the connection position and the second oscillating portion 22b. Therefore, when the oscillating member 22 is oscillated in the first direction D1, the stress applied to the connection lines 26a, 26b is easily reduced, and the connection lines 26a, 26b are easily prevented from being broken. Therefore, the coil 26 and the circuit member 60 can be stably electrically connected, and the stability of the operation of the power generation device 20 can be improved.

[0139] In addition, in this embodiment, as described above, it is easy to reduce the stress applied to the connection lines 26a, 26b, and therefore it is possible to prevent the tension of the connection lines 26a, 26b applied to the coil 26 from impeding the oscillation of the oscillating member 22 in the first direction D1. Therefore, since the magnetostrictive member 23 can be stably oscillated in the first direction D1, it is possible to stabilize the generated current Ig of the coil 26 and increase the generated current Ig.

[0140] In addition, in this embodiment, as described above, since it is easy to reduce the amplitude in the first direction D1 of the portion of the coil 26 where the coil 26 and the connection lines 26a, 26b are connected, it is possible to prevent the length of the connection lines 26a, 26b from becoming too long. Therefore, it is possible to prevent the electrical resistance of the connection lines 26a, 26b from becoming too large, and it is possible to prevent the generated voltage Vg generated in the coil 26 from decreasing in the connection lines 26a, 26b. Therefore, it is possible to increase the generated voltage Vg applied to the circuit member 60, and it is possible to increase the power generation efficiency of the power generation device 20 and the control device 10.

[0141] According to this embodiment, the first oscillating portion 22a is provided apart from the second oscillating portion 22b in the second direction D2 different from the first direction D1, and the second oscillating portion 22b contacts the yoke 21. Therefore, since the second oscillating portion 22b contacts the yoke 21, when the oscillating member 22 oscillates in the first direction D1, the amplitude of the portion on the second oscillating portion 22b side can be preferably prevented from increasing. Therefore, when the oscillating member 22 oscillates in the first direction D1, the stress applied to the connection lines 26a, 26b can be more preferably reduced, and the connection lines 26a, 26b can be more preferably prevented from being broken. Therefore, the stability of the operation of the power generation device 20 can be improved.

[0142] According to this embodiment, the yoke 21 is formed to include a magnetic material. This increases the magnetic permeability of the yoke 21, thereby increasing the magnetic flux density of the magnetic flux passing through the yoke 21 and the magnetostrictive member 23. This increases the magnetic flux density of the magnetic flux passing through the inside of the coil 26, thereby increasing the generated current Ig and generated voltage Vg generated in the coil 26. This increases the power generation efficiency of the power generation device 20.

[0143] According to this embodiment, the oscillating member 22 further includes a frame 24 to which the magnetostrictive member 23 is attached and which is formed to include a nonmagnetic material, and the yoke 21 supports at least one of the magnetostrictive member 23 and the frame 24. Thus, the magnetostrictive member 23 oscillates in the first direction D1 together with the frame 24. Therefore, when the oscillating member 22 oscillates in the first direction D1, the amplitude of the oscillating member 22 can be prevented from becoming too large, and the stress applied to the connection lines 26a and 26b can be more suitably reduced. Therefore, the connection lines 26a and 26b can be more suitably prevented from being broken, and the stability of the operation of the power generation device 20 can be improved.

[0144] According to this embodiment, the power generating device 20 further includes a magnetic flux forming member 27 that forms a magnetic flux passing through the magnetostrictive member 23. Therefore, the magnetic flux density passing through the magnetostrictive member 23 can be increased, and the generated current Ig and generated voltage Vg generated in the coil 26 can be increased.

[0145] According to the present embodiment, the magnetic flux generating member 27 is disposed between the yoke 21 and the oscillating member 22. Therefore, the magnetic flux density of the closed magnetic circuit Mc formed among the magnetic flux generating member 27, the yoke 21, and the magnetostrictive member 23 can be increased more stably, and therefore the generated current Ig and the generated voltage Vg generated in the coil 26 can be increased more stably.

[0146] According to this embodiment, the circuit member 60 includes a rectifier 62 that rectifies the current generated in the coil 26, i.e., the generated current Ig, and a power storage unit 63 that supplies the current rectified by the rectifier 62, i.e., the rectified current Ir, to the wireless communication unit 70. Thus, the wireless communication unit 70 can be driven using the power generated in the coil 26 as a driving source. Therefore, compared to a power generation device configured to have a separate power source, such as a battery, for driving the wireless communication unit 70, it is possible to suppress a decrease in the electromotive force of the power source with the use time of the power generation device 20, so that the work of replacing the power source or the work of charging the power source is not required, and the operation of the wireless communication unit 70 can be suppressed from stopping when the power generation device 20 is used. Thus, the convenience of the power generation device 20 can be further improved.

[0147] According to the present embodiment, the circuit member 60 includes a first substrate 66 on which the rectification unit 62, the power storage unit 63, and the wireless communication unit 70 are mounted. Thus, compared to a case in which the rectification unit 62, the power storage unit 63, and the wireless communication unit 70 are each mounted on a separate substrate, it is possible to prevent an increase in the number of substrates included in the circuit member 60. Therefore, it is possible to prevent an increase in the number of components of the power generation device 20, and therefore it is possible to prevent an increase in the assembly man-hours and manufacturing costs of the power generation device 20.

[0148] In this embodiment, as described above, the first substrate 66 is a flexible substrate, and the connection portion 61 is mounted on the first substrate 66. Therefore, when the coil 26 oscillates in the first direction D1 together with the oscillating member 22, if a tensile stress is applied to the connection lines 26a, 26b, the first substrate 66 is likely to be elastically deformed in the first direction D1. This reduces the stress applied to the connection lines 26a, 26b, and more preferably prevents the connection lines 26a, 26b from being broken. This more preferably improves the stability of the operation of the power generation device 20.

[0149] According to this embodiment, the power generation device 20 further includes an operating member 31 configured to be operated by a user, and the swinging member 22 is configured to swing in a first direction D1 in response to the user's operation of the operating member 31. Thus, the user can generate a power generation current Ig in the coil 26 by simply pressing down the operating member 31. This further enhances the convenience of the power generation device 20.

[0150] According to this embodiment, the power generation device 20 further includes a swing inducing member 32 configured to swing the swinging member 22 in the first direction D1 in response to a user's operation of the operating member 31. Thus, the user can generate a power generation current Ig in the coil 26 by simply pressing down the operating member 31. This further enhances the convenience of the power generation device 20.

[0151] According to this embodiment, the control device 10 controls the operation of the driven device 81, and includes the power generation device 20 and a control unit 90 that controls the wireless communication unit 70 to wirelessly transmit a command signal Sc to the driven device 81 in response to the operation of the operating member 31 by the user. Thus, the control unit 90 can operate the driven device 81 based on the operation of the operating member 31 by the user. Therefore, the user can operate the driven device 81 by performing a simple operation of pressing down the operating member 31, thereby improving the convenience of the control device 10 and the driven device 81.

[0152] According to this embodiment, the control unit 90 is mounted on the circuit member 60. Therefore, it is possible to suppress an increase in the number of parts of the control device 10 compared to a configuration having a separate circuit member for mounting the control unit 90. Therefore, it is possible to suppress an increase in the number of assembly steps and manufacturing costs of the power generation device 20 and the control device 10.

[0153] According to this embodiment, the control unit 90 is configured to generate a command signal Sc based on information related to the voltage generated in the coil 26, i.e., the generated voltage Vg. Therefore, the command signal Sc generated based on information related to the generated voltage Vg generated by the user's operation of the operating member 31 can be transmitted to the driven device 81, so that the driven device 81 can be made to perform an operation based on the user's operation. Therefore, the user can make the driven device 81 perform a desired operation by performing a simple operation of pressing the operating member 31, so that the convenience of the control device 10 and the driven device 81 can be improved.

[0154] According to this embodiment, the control device 10 and the driven device 81 are configured to be attached to the human-powered vehicle 80, and the driven device 81 has an actuator. Therefore, the user can cause the driven device 81 to perform a desired operation by a simple operation of pressing down the operating member 31, thereby improving the convenience of the human-powered vehicle 80.

[0155] According to this embodiment, the driven device 81 includes at least one of a transmission, an adjustable seat post, a suspension, a drive unit, and a lamp that are attached to the human-powered vehicle 80. Therefore, the user can cause at least one of the transmission, the adjustable seat post, the suspension, the drive unit, and the lamp to perform a desired operation by simply pressing the operating member 31. Therefore, the convenience of the human-powered vehicle 80 can be improved.

[0156] Furthermore, in this embodiment, the first substrate 66 may be attached to the coil 26. In this case, the first substrate 66 is swung in the first direction D1 together with the coil 26 and the oscillating member 22, so that the stress applied to the connection lines 26a, 26b can be more suitably reduced. This more suitably prevents the connection lines 26a, 26b from being broken, so that the coil 26 and the circuit member 60 can be stably electrically connected to each other. Therefore, the stability of the operation of the power generation device 20 can be more suitably improved.

[0157] <First Modification> Fig. 7 is a diagram showing a configuration example of the control device 110 of the first modified example of this embodiment as viewed from the other side (-D1 side) of the first direction D1. Fig. 7 shows the control device 110 with the cover part 17 removed. Fig. 8 is a cross-sectional view showing the configuration example of the control device 110 of the first modified example of this embodiment, taken along the line VIII-VIII of Fig. 7. In the following description, the same components as those in the above-described embodiment are denoted by the same reference numerals, and the description thereof will be omitted.

[0158] 8, a yoke 121 included in a power generating device 120 of this modification has a substantially L-shape when viewed from a third direction D3. The yoke 121 has a first yoke portion 121a, a second yoke portion 121b, and a third yoke portion 121c.

[0159] As shown in Figs. 7 and 8, the first yoke portion 121a has a substantially rectangular parallelepiped shape extending in the third direction D3. As shown in Fig. 8, the first yoke portion 121a is disposed on the other side (-D2 side) of the coil 26 in the second direction D2. The first yoke portion 121a is disposed on the other side (-D1 side) of the first direction D1 of the magnetostrictive member 23 and the extension portion 24c. The first yoke portion 121a is fixed to an inner surface of the side wall portion 16a facing one side (+D2 side) of the second direction D2. The surface of the first yoke portion 121a facing one side (+D1 side) of the first direction D1 contacts the surface of the magnetostrictive member 23 facing the other side of the first direction D1.

[0160] The second yoke portion 121b has a substantially rectangular parallelepiped shape extending in the first direction D1. The second yoke portion 121b has a third yoke end 121v and a fourth yoke end 121w. The third yoke end 121v is an end opposite to the fourth yoke end 121w in the first direction D1. The fourth yoke end 121w is located on the other side in the first direction D1 than the third yoke end 121v. The second yoke portion 121b is disposed on the other side (-D2 side) in the second direction D2 than the coil 26. The second yoke portion 121b is disposed on one side (+D1 side) in the first direction D1 than the magnetostrictive member 23 and the extension portion 24c. The second yoke portion 121b is fixed to an inner surface of the side wall portion 16a facing one side (+D2 side) in the second direction D2. A surface of second yoke portion 121b facing the other side (-D1 side) in the first direction D1 comes into contact with a surface of first frame portion 124a of frame 124 facing one side in the first direction D1. Second yoke portion 121b and first yoke portion 121a are fixed to each other by a crimping pin (not shown). As a result, first frame portion 124a is fixed to yoke 121. Extension portion 24c is supported by yoke 121 via first frame portion 124a so as to be swingable in the first direction D1 relative to yoke 121. In addition, magnetostrictive member 23 is supported by yoke 121.

[0161] The third yoke portion 121c has a substantially rectangular parallelepiped shape extending in the second direction D2. The third yoke portion 121c has a fifth yoke end 121t and a sixth yoke end 121u. The sixth yoke end 121u is an end opposite to the fifth yoke end 121t in the second direction D2. The sixth yoke end 121u is located on the other side in the third direction D3 than the fifth yoke end 121t. The third yoke portion 121c is disposed on one side (+D1 side) in the first direction D1 than the magnetostrictive member 23 and the coil 26. The sixth yoke end 121u of the third yoke portion 121c is connected to the third yoke end 121v of the second yoke portion 121b. The third yoke portion 121c is fixed to the bottom wall portion 16b. The other configurations of the yoke 121 are the same as the other configurations of the yoke 21 of the above-described embodiment.

[0162] As shown in FIG. 7, the connection lines 126a and 126b of this modified example are drawn from the coil 26 to one side (+D3 side) of the third direction D3. The connection line 126a is connected to one end of the coil 26. The connection line 126b is connected to the other end of the coil 26. A first distance L1 between a connection position where the coil 26 is connected to the connection lines 126a and 126b and the first oscillating part 22a is longer than a second distance L2 between the connection position and the second oscillating part 22b. The connection lines 126a and 126b are connected to the circuit member 160. As a result, the circuit member 160 is electrically connected to the coil 26 via the connection lines 126a and 126b. Other configurations of the connection lines 126a and 126b are the same as other configurations of the connection lines 26a and 26b of the above-mentioned embodiment.

[0163] As shown in FIG. 8, the magnetic flux forming member 127 is fixed to a surface of the third yoke portion 121c facing the other side (-D1 side) in the first direction D1. The magnetic flux forming member 127 is disposed on one side (+D2 side) in the second direction D2 relative to the coil 26. The magnetic flux forming member 127 is disposed in line with the magnetostrictive member 23 and the third yoke portion 121c in the first direction D1. The magnetic flux forming member 127 is disposed between the yoke 121 and the oscillating member 22. The magnetic flux forming member 127 is disposed, for example, between the yoke 121 and the magnetostrictive member 23. The magnetic flux forming member 127 is disposed opposite the magnetostrictive member 23 with a gap in the first direction D1 across the extension portion 24c. The magnetic flux forming member 127 has a pair of magnetic poles. Of the two faces of the magnetic flux forming member 127 facing the first direction D1, an N pole is formed on one face, and an S pole is formed on the other face. This forms a closed magnetic circuit Mc passing through the magnetic flux forming member 127, the magnetostrictive member 23, and the yoke 121. Other configurations of the magnetic flux forming member 127 are the same as those of the magnetic flux forming member 27 of the above-described embodiment.

[0164] As shown in FIG. 7 and FIG. 8, the circuit member 160 of the power generating device 120 of this modification is disposed on one side (+D3 side) of the extension portion 24c, the magnetostrictive member 23, and the coil 26 in the third direction D3. As shown in FIG. 8, the circuit member 160 at least partially overlaps with at least one of the yoke 121, the coil 26, and the oscillating member 22 when viewed from the third direction D3. Also, as shown in FIG. 7, the circuit member 160 overlaps with the first yoke portion 121a and the second yoke portion 121b when viewed from the second direction D2. That is, the circuit member 160 overlaps with the yoke 121 when viewed from the second direction D2. As a result, the circuit member 160 at least partially overlaps with at least one of the yoke 121, the coil 26, and the oscillating member 22 when viewed from the second direction D2 and the third direction D3, which are mutually non-parallel directions different from the first direction D1.

[0165] The first substrate 166 of the substrate 165 has a plate shape that extends in a direction perpendicular to the third direction D3. The first substrate 166 is fixed to the housing body 16. The plate thickness direction of the first substrate 166 is the third direction D3. The first substrate 166 has a first surface 166a and a second surface 166b. The first substrate 166 includes, for example, a flexible substrate having flexibility.

[0166] The first surface 166a is a surface of the outer surface of the first substrate 166 facing one side (+D3 side) of the third direction D3. The first surface 166a faces the side wall portion 16a in the third direction D3. The first surface 166a faces none of the yoke 121, the coil 26, and the magnetostrictive member 23. That is, the first surface 166a faces none of the yoke 121, the coil 26, and the magnetostrictive member 23 at least partially. The second surface 166b is a surface of the outer surface of the first substrate 166 facing the other side (-D3 side) of the third direction D3. The second surface 166b is a surface facing the opposite side to the first surface 166a. That is, the circuit member 160 has a substrate 165 having the first surface 166a and the second surface 166b opposite to the first surface 166a. The second surface 166b faces the coil 26 and the magnetostrictive member 23 in the third direction D3.

[0167] The wireless communication unit 70 is provided on the first surface 166a of the first substrate 166. Therefore, the wireless communication unit 70 does not face any of the yoke 121, the coil 26, the magnetostrictive member 23, and the frame 24. In other words, the wireless communication unit 70 does not face any of the yoke 121, the coil 26, and the oscillating member 22, at least partially.

[0168] The antenna 72 is provided on the first surface 166a of the first substrate 166. Therefore, the antenna 72 does not face any of the yoke 121, the coil 26, the magnetostrictive member 23, and the frame 24. In other words, the antenna 72 does not face at least partially any of the yoke 21, the coil 26, and the oscillating member 22. The other configurations, etc. of the circuit member 160 are the same as the other configurations, etc. of the circuit member 60 of the present embodiment described above.

[0169] According to this modification, the circuit member 160 at least partially overlaps with at least one of the yoke 121, the coil 26, and the oscillating member 22 when viewed from the second direction and the third direction D3, which are non-parallel directions different from the first direction D1. Therefore, compared to a configuration in which the circuit member 160 does not overlap with each of the yoke 121, the coil 26, and the magnetostrictive member 23 when viewed from the second direction D2 and the third direction D3, that is, a case in which the circuit member 160 is arranged offset in the first direction D1 from each of the yoke 121, the coil 26, and the magnetostrictive member 23, it is possible to prevent the power generating device 120 from becoming large in size in the first direction D1. Therefore, the power generating device 120 can be easily incorporated into a narrow space, and the convenience of the power generating device 120 can be improved.

[0170] According to this modification, the wireless communication unit 70 does not at least partially face any of the yoke 121, the coil 26, and the oscillating member 22. This makes it possible to prevent the command signal Sc wirelessly transmitted by the wireless communication unit 70 from being magnetically shielded by the yoke 121, the coil 26, and the magnetostrictive member 23, and therefore makes it possible to stably transmit the command signal Sc to the outside of the power generating device 120. This makes it possible to more suitably improve the convenience of the power generating device 120.

[0171] According to this modification, the antenna 72 does not at least partially face any of the yoke 121, the coil 26, and the oscillating member 22. This more suitably prevents the command signal Sc wirelessly transmitted by the antenna 72 from being magnetically shielded by the yoke 121, the coil 26, and the magnetostrictive member 23, so that the command signal Sc can be more stably transmitted to the outside of the power generating device 120. This more suitably improves the stability of the operation of the power generating device 120.

[0172] According to this modification, the first distance L1 between the connection position where the coil 26 is connected to the connection lines 126a, 126b and the first oscillating part 22a is longer than the second distance L2 between the connection position and the second oscillating part 22b. Therefore, as in the above-described embodiment, when the oscillating member 22 is oscillated in the first direction D1, the stress applied to the connection lines 126a, 126b is easily reduced, and the connection lines 126a, 126b are easily prevented from being broken. Therefore, the coil 26 and the circuit member 160 can be stably electrically connected, and the power generation device 120 can be stably operated.

[0173] <Second Modification> Fig. 9 is a diagram showing a configuration example of the control device 210 of the second modified example of this embodiment as viewed from the other side (-D1 side) of the first direction D1. Fig. 9 shows the control device 210 with the cover part 17 removed. Fig. 10 is a cross-sectional view showing the configuration example of the control device 210 of the second modified example of this embodiment, taken along the line XX in Fig. 9. In the following description, the same components as those in the first modified example of the present embodiment described above are denoted by the same reference numerals, and the description thereof will be omitted.

[0174] As shown in FIG. 10, the connection lines 226a and 226b of the power generating device 220 of this modification are drawn from the coil 26 to the other side (-D1 side) of the first direction D1. The connection line 226a is connected to one end of the coil 26. The connection line 226b is connected to the other end of the coil 26. A first distance L1 between a connection position where the coil 26 is connected to the connection lines 226a and 226b and the first oscillation part 22a is longer than a second distance L2 between the connection position and the second oscillation part 22b. The connection lines 226a and 226b are connected to the circuit member 260. As a result, the circuit member 260 is electrically connected to the coil 26 via the connection lines 226a and 226b. Other configurations of the connection lines 226a and 226b are the same as other configurations of the connection lines 26a and 26b of the above-mentioned embodiment.

[0175] 9 and 10, the circuit member 260 of the power generating device 220 of this modification is disposed on the other side (-D1 side) in the first direction D1 of the extension portion 24c, the magnetostrictive member 23, and the coil 26. When viewed from the first direction D1, the circuit member 260 at least partially overlaps with at least one of the yoke 121, the coil 26, and the oscillating member 22.

[0176] 10, the first substrate 266 of the substrate 265 has a plate shape extending in a direction perpendicular to the first direction D1. The first substrate 266 is fixed to the housing body 16. The plate thickness direction of the first substrate 266 is the first direction D1. The first substrate 266 has a first surface 266a and a second surface 266b. The first substrate 266 includes, for example, a flexible substrate having flexibility.

[0177] The first surface 266a is a surface of the outer surface of the first substrate 266 facing the other side (-D1 side) of the first direction D1. The first surface 266a faces the cover portion 17 in the first direction D1. The first surface 266a faces none of the yoke 121, the coil 26, and the magnetostrictive member 23. That is, the first surface 266a faces none of the yoke 121, the coil 26, and the oscillating member 22 at least partially. The second surface 266b is a surface of the outer surface of the first substrate 266 facing one side (+D1 side) of the first direction D1. The second surface 266b is a surface facing the opposite side to the first surface 266a. That is, the circuit member 260 has a substrate 265 having the first surface 266a and the second surface 266b opposite to the first surface 266a. The second surface 266b faces the yoke 121, the coil 26, and the magnetostrictive member 23 in the third direction D3.

[0178] The wireless communication unit 70 is provided on the first surface 266a of the first substrate 266. Therefore, the wireless communication unit 70 does not face any of the yoke 121, the coil 26, the magnetostrictive member 23, and the frame 24. In other words, the wireless communication unit 70 does not face any of the yoke 121, the coil 26, and the oscillating member 22, at least partially.

[0179] The antenna 72 is provided on the first surface 266a of the first substrate 266. Therefore, the antenna 72 does not face any of the yoke 121, the coil 26, the magnetostrictive member 23, and the frame 24. In other words, the antenna 72 does not face at least partially any of the yoke 121, the coil 26, and the oscillating member 22. The other configurations of the circuit member 260 are the same as the other configurations of the circuit member 60 of the present embodiment described above.

[0180] According to this modification, the wireless communication unit 70 does not at least partially face any of the yoke 121, the coil 26, and the oscillating member 22. This makes it possible to prevent the command signal Sc wirelessly transmitted by the wireless communication unit 70 from being magnetically shielded by the yoke 121, the coil 26, and the magnetostrictive member 23, and therefore makes it possible to stably transmit the command signal Sc to the outside of the power generating device 220. This makes it possible to improve the stability of the operation of the power generating device 220.

[0181] According to this modification, the antenna 72 does not at least partially face any of the yoke 121, the coil 26, and the oscillating member 22. This more suitably prevents the command signal Sc wirelessly transmitted by the antenna 72 from being magnetically shielded by the yoke 121, the coil 26, and the magnetostrictive member 23, so that the command signal Sc can be more stably transmitted to the outside of the power generating device 220. This more suitably improves the stability of the operation of the power generating device 220.

[0182] According to this modification, the first distance L1 between the connection position where the coil 26 is connected to the connection lines 226a, 226b and the first oscillating part 22a is longer than the second distance L2 between the connection position and the second oscillating part 22b. Therefore, as in the above-described embodiment, when the oscillating member 22 is oscillated in the first direction D1, the stress applied to the connection lines 226a, 226b is easily reduced, and the connection lines 226a, 226b are easily prevented from being broken. Therefore, the coil 26 and the circuit member 260 can be stably electrically connected, and the stability of the operation of the power generation device 220 can be more suitably improved.

[0183] <Third Modification> FIG. 11 is a cross-sectional view showing an example of the configuration of a control device 310 according to a third modified example of this embodiment. In the following description, the same components as those in the second modified example of the present embodiment are denoted by the same reference numerals, and the description thereof will be omitted. Note that, like the magnetic flux forming member 127 in the second modified example of the present embodiment, the magnetic flux forming member 127 is disposed on one side (+D2 side) of the coil 26 in the second direction D2.

[0184] As shown in FIG. 11, the housing 315 has a substantially rectangular box shape. The housing 315 accommodates the power generating device 320 inside. The dimension of the housing 315 in the second direction D2 of the present modification is larger than the dimension of the housing 15 in the second direction D2 of the present embodiment. More specifically, the dimension of each of the side wall portion 316a and the bottom wall portion 316b of the housing main body portion 316 in the second direction D2 of the present modification is larger than the dimension of each of the side wall portion 16a and the bottom wall portion 16b of the housing main body portion 16 in the second direction D2 of the present embodiment. In addition, the dimension of the lid portion 317 in the second direction D2 of the present modification is larger than the dimension of the lid portion 17 in the second direction D2 of the present embodiment. Other configurations of the housing 315 in the present modification are the same as other configurations of the housing 15 in the present embodiment.

[0185] The circuit member 360 is disposed on the other side (-D1 side) in the first direction D1 with respect to the yoke 121, the coil 26, and the oscillating member 22. The circuit member 360 includes a first substrate 366 included in a substrate 365, a connection portion 61, a rectification portion 362, a power storage portion 63, a wireless communication portion 370, and a detection portion 364.

[0186] The first substrate 366 has a plate shape that spreads in a direction perpendicular to the first direction D1. The plate thickness direction of the first substrate 366 is the first direction D1. Although not shown, the first substrate 366 is fixed to the housing main body 316. A portion of the first substrate 366 on one side (+D2 side) in the second direction D2 is located on one side of the second direction D2 relative to the yoke 121, the magnetostrictive member 23, and the magnetic flux forming member 127. Therefore, the portion of the first substrate 366 on one side in the second direction D2 is disposed on one side of the closed magnetic circuit Mc formed by the yoke 121, the magnetostrictive member 23, and the magnetic flux forming member 127 in the second direction D2. The first substrate 366 includes, for example, a flexible substrate having flexibility.

[0187] In this modification, the rectifier 362, the wireless communication unit 370, and the detector 364 are mounted on a portion of the first substrate 366 on one side (+D2 side) of the magnetic flux forming member 127 in the second direction D2. In this modification, the power storage unit 63 and the controller 90 may be disposed on the other side (-D2 side) of the magnetic flux forming member 127 in the second direction D2, or on one side of the magnetic flux forming member 127 in the second direction D2. The other configurations of the circuit member 360 in this modification are the same as the other configurations of the circuit member 260 in the second modification of the present embodiment described above.

[0188] In this modification, the detection member 340 is attached to the cover 317. At least a part of the detection member 340 is exposed to the outside of the housing 315. In the control device 310 of this modification, when the user directly presses the detection member 340, the detection member 340 transmits a detection signal S1 to the detection unit 364 via the detection connection line 341. The detection unit 364 that receives the detection signal S1 transmits the detection signal S1 to the control unit 90. As a result, the control unit 90 can detect that the user has pressed the detection member 340. Note that an operating member (not shown) of the power generation device 320 moves in the first direction D1 when the user presses the detection member 340, and the rocking member 22 rocks in the first direction D1. This allows the coil 26 to generate a power generation current Ig.

[0189] In this modification, the rectifier 362, the wireless communication unit 370, and the detector 364 are each disposed on one side of the magnetic flux generating member 127 in the second direction D2. Therefore, the rectifier 362, the wireless communication unit 370, and the detector 364 can be easily disposed at a position away from the closed magnetic circuit Mc. This makes it easy to prevent the magnetic flux passing through the closed magnetic circuit Mc from leaking to electronic components mounted on the rectifier 362, the wireless communication unit 370, and the detector 364. Therefore, since it is possible to prevent a decrease in the magnetic flux density of the magnetic flux passing through the closed magnetic circuit Mc, it is possible to prevent a decrease in the generated current Ig and a decrease in the power generation efficiency of the power generation device 320.

[0190] <Fourth Modification> FIG. 12 is a block diagram showing an example of the configuration of a control device 410 according to a fourth modified example of this embodiment. In the following description, the same components as those in the above-described embodiment are denoted by the same reference numerals, and the description thereof will be omitted.

[0191] 12, the circuit member 460 of the power generating device 420 of this modification includes a substrate 465, a connection section 61, a rectification section 62, a power storage section 63, a wireless communication section 70, and a detection section 64. The substrate 465 includes a first substrate 466 and a second substrate 467. The substrate 465 includes at least one of a flexible substrate having flexibility and a printed substrate. The first substrate 466 includes, for example, a flexible substrate. The second substrate 467 includes, for example, a flexible substrate.

[0192] In this modification, a rectification unit 62, a power storage unit 63, a wireless communication unit 70, a detection unit 64, and a control unit 90 are mounted on a first substrate 466. In this modification, a connection unit 61 is mounted on a second substrate 467. The connection unit 61 and the rectification unit 62 are connected by a first cable 475.

[0193] According to this modification, the dimensions of the first board 466 and the second board 467 can be reduced compared to the case where the connection unit 61, the rectification unit 62, the power storage unit 63, the wireless communication unit 70, the detection unit 64, and the control unit 90 are mounted on the first board. In addition, the degree of freedom in arranging each unit constituting the circuit member 460 can be increased by arranging the first board 466 and the second board 467 side by side in the first direction D1. Therefore, the space in which the circuit member 460 is arranged can be easily reduced, and the power generation device 420 and the control device 410 can be reduced in size. Therefore, the power generation device 420 and the control device 410 can be easily incorporated into a narrow space, and the convenience of the power generation device 420 and the control device 410 can be improved.

[0194] In this modification, the second board 467 on which the connection portion 61 is mounted may be attached to the coil 26. In this case, it is preferable that the first cable 475 is made of a flexible flat cable (FFC) or an electric wire having a strength higher than that of the connection lines 26a and 26b. This makes it possible to prevent the first cable 475 connecting the second board 467, which oscillates together with the coil 26 and the magnetostrictive member 23, and the first board 466, which does not oscillate together with the coil 26 and the magnetostrictive member 23, from being broken.

[0195] <Fifth Modification> FIG. 13 is a block diagram showing an example of the configuration of a control device 510 according to a fifth modified example of this embodiment. In the following description, the same components as those in the above-described embodiment are denoted by the same reference numerals, and the description thereof will be omitted.

[0196] 13, the circuit member 560 of the power generating device 520 of this modified example includes a substrate 565, a connection section 61, a rectification section 62, a power storage section 63, a wireless communication section 70, and a detection section 64. The substrate 565 includes a first substrate 566 and a second substrate 567. The substrate 565 includes at least one of a flexible substrate (FPC) having flexibility and a printed circuit board (PCB). The first substrate 566 includes, for example, a flexible substrate. The second substrate 567 includes, for example, a flexible substrate.

[0197] In this modification, a wireless communication unit 70 is mounted on the first board 566. In this modification, a connection unit 61, a rectification unit 62, a power storage unit 63, a detection unit 64, and a control unit 90 are mounted on the second board 567. The control unit 90 and the wireless communication unit 70 are connected by a second cable 576.

[0198] According to this modification, as compared with the case where the connection unit 61, the rectification unit 62, the power storage unit 63, the wireless communication unit 70, the detection unit 64, and the control unit 90 are mounted on one first board, the dimensions of the first board 566 and the second board 567 can be reduced, and the degree of freedom in arranging each unit constituting the circuit member 560 can be increased, as in the fourth modification of the present embodiment described above. Therefore, since it is easy to reduce the space in which the circuit member 560 is arranged, it is possible to miniaturize the power generation device 520 and the control device 510. Therefore, since it is easy to incorporate the power generation device 520 and the control device 510 into a narrow space, it is possible to improve the convenience of the power generation device 520 and the control device 510.

[0199] In this modification, the second substrate 567 on which the connection portion 61 is mounted may be attached to the coil 26. In this case, it is preferable that the second cable 576 is made of a flexible flat cable (FFC) or an electric wire having a strength higher than that of the connection lines 26a, 26b. This makes it possible to prevent breakage of the second cable 576 connecting the second substrate 567 that oscillates together with the coil 26 and the magnetostrictive member 23 and the first substrate 566 that does not oscillate together with the coil 26 and the magnetostrictive member 23.

[0200] <Sixth Modification> FIG. 14 is a block diagram showing an example of the configuration of a control device 610 according to a sixth modified example of this embodiment. In the following description, the same components as those in the above-described embodiment are denoted by the same reference numerals, and the description thereof will be omitted.

[0201] 14, the circuit member 660 of the power generating device 620 of this modified example includes a substrate 665, a connection section 61, a rectification section 62, a power storage section 63, a wireless communication section 70, and a detection section 64. The substrate 665 includes a first substrate 566, a second substrate 667, and a third substrate 668. The substrate 665 includes at least one of a flexible substrate (FPC) having flexibility and a printed circuit board (PCB). The first substrate 566 includes, for example, a flexible substrate. The second substrate 667 includes, for example, a flexible substrate. The third substrate 668 includes, for example, a flexible substrate.

[0202] In this modification, the wireless communication unit 70 is mounted on the first substrate 566. In this modification, the connection unit 61, the rectification unit 62, and the detection unit 64 are mounted on the second substrate 667. In this modification, the power storage unit 63 and the control unit 90 are mounted on the third substrate 668. The control unit 90 and the wireless communication unit 70 are connected by a second cable 576. The rectification unit 62 and the power storage unit 63 are connected by a third cable 677.

[0203] According to this modification, the connection unit 61, the rectification unit 62, the power storage unit 63, the wireless communication unit 70, the detection unit 64, and the control unit 90 can each be mounted on one of the three boards 566, 667, and 668, so that the dimensions of each board 566, 667, and 668 can be made smaller, and the degree of freedom in arranging each unit constituting the circuit member 660 can be increased. Therefore, the space in which the circuit member 660 is arranged can be made smaller, so that the power generation device 620 and the control device 610 can be made smaller. Therefore, the power generation device 620 and the control device 610 can be easily incorporated into a narrow space, so that the convenience of the power generation device 620 and the control device 610 can be improved.

[0204] In this modification, the second substrate 667 on which the connection portion 61 is mounted may be attached to the coil 26. In this case, it is preferable that the third cable 677 is made of a flexible flat cable (FFC) or an electric wire having a strength higher than that of the connection lines 26a and 26b. This makes it possible to prevent the third cable 677 connecting the second substrate 667 that swings together with the coil 26 and the magnetostrictive member 23 and the third substrate 668 that does not swing together with the coil 26 and the magnetostrictive member 23 from being broken.

[0205] <Seventh Modification> FIG. 15 is a block diagram showing an example of the configuration of a control device 710 according to a seventh modified example of this embodiment. In the following description, the same components as those in the above-described embodiment are denoted by the same reference numerals, and the description thereof will be omitted.

[0206] 15, the circuit member 760 of the power generating device 720 of this modification includes a substrate 765, a connection section 61, a rectification section 62, a power storage section 63, a wireless communication section 70, and a detection section 64. The substrate 765 includes a first substrate 566, a second substrate 767, a third substrate 668, and a fourth substrate 769. The substrate 765 includes at least one of a flexible substrate (FPC) having flexibility and a printed circuit board (PCB). The second substrate 767 includes, for example, a flexible substrate. The fourth substrate 769 includes, for example, a flexible substrate.

[0207] The wireless communication unit 70 is mounted on the first substrate 566. In this modification, the rectification unit 62 and the detection unit 64 are mounted on the second substrate 767. In this modification, the power storage unit 63 and the control unit 90 are mounted on the third substrate 668. In this modification, the connection unit 61 is mounted on the fourth substrate 769. The connection unit 61 and the rectification unit 62 are connected by a first cable 475. The control unit 90 and the wireless communication unit 70 are connected by a second cable 576. The rectification unit 62 and the power storage unit 63 are connected by a third cable 677.

[0208] According to this modification, the connection unit 61, the rectification unit 62, the power storage unit 63, the wireless communication unit 70, the detection unit 64, and the control unit 90 can each be mounted on one of the four boards 566, 767, 668, and 769, so that the dimensions of each board 566, 767, 668, and 769 can be made smaller, and the degree of freedom in arranging each unit constituting the circuit member 760 can be increased. Therefore, the space in which the circuit member 760 is arranged can be made smaller, so that the power generation device 720 and the control device 710 can be made smaller. Therefore, the power generation device 720 and the control device 710 can be easily incorporated into a narrow space, so that the convenience of the power generation device 720 and the control device 710 can be improved.

[0209] In this modification, the fourth board 769 on which the connection portion 61 is mounted may be attached to the coil 26. In this case, it is preferable that the first cable 475 is made of a flexible flat cable (FFC) or an electric wire having a strength higher than that of the connection lines 26a and 26b. This makes it possible to prevent breakage of the first cable 475 connecting the fourth board 769, which oscillates together with the coil 26 and the magnetostrictive member 23, and the second board 767, which does not oscillate together with the coil 26 and the magnetostrictive member 23.

[0210] The present invention is not limited to the above-mentioned embodiment, and other configurations and methods may be adopted within the scope of the technical idea of ​​the present invention. For example, the number of each of the operating member and the detection member provided in the control device is not limited to one, and the number of each of the operating member and the detection member may be two or more. In this case, the control unit can detect that the user has pressed different operating members through each detection member, so that the user can cause the driven device to perform many different operations.

[0211] Furthermore, the control device does not have to include a detection member. In this case, the control unit can detect that the operating member has been operated by detecting the generated voltage.

[0212] Furthermore, the power generating device does not need to include a magnetic flux generating member. In this case, an induced current can be generated in the coil section by using a magnetic flux generated by magnetizing the magnetostrictive member due to mechanical distortion of the magnetostrictive member.

[0213] The control device does not have to include an operating member. In this case, the magnetostrictive member can be swung in the first direction by vibrations applied to the magnetostrictive member when the human-powered vehicle is traveling. By attaching weights to the second extension portion and the first end of the magnetostrictive member, the magnetostrictive member can be swung in the first direction more easily.

[0214] The power generating device may also include various sensors such as an acceleration sensor, a vibration sensor, and a motion sensor, and may be, for example, a power meter. In this case, the power generated by the power generating device can be used to operate the various sensors. Furthermore, information obtained from the various sensors may be transmitted to at least one of the driven devices, such as a transmission, an adjustable seat post, a suspension, a lamp, a braking device, and a drive unit, that are attached to the human-powered vehicle.

[0215] Furthermore, the configuration of the magnetostrictive member is not limited to that of this embodiment, and for example, the magnetostrictive member may have another shape, such as a rod shape extending in the second direction. Furthermore, the power generating device may have two or more magnetostrictive members. In this case, the power generating device can further increase the generated voltage. In this case, the power generating device may have two or more magnetic flux forming members.

[0216] Furthermore, the configuration of the circuit members is not limited to the configurations of the above-mentioned embodiments, and for example, the circuit members may have five or more boards. In this case, the dimensions of each board can be made smaller, so that the space in which the circuit members are arranged can be made smaller, and the power generation device and the control device can be made smaller. Furthermore, the circuit members do not need to be arranged inside the housing, and may be arranged outside the housing. Furthermore, the power generation device may not include the circuit members, and in this case, the circuit members may be provided in a separate device different from the control device.

[0217] The circuit member may also include a matching section (impedance matching circuit) formed of a capacitor. By adjusting the input impedance and output impedance of the matching section so that they are substantially equal, the power output from the matching section can be maximized. Here, the matching section may be provided independently, or the impedance may be matched using a capacitor provided in the rectification section. When the matching section is provided independently, the matching section may be electrically disposed between the rectification section and the connection section. [Explanation of symbols]

[0218] 10,110,210,310,410,510,610,710 Control device, 15,315 Housing, 20,120,220,320,420,520,620,720 Power generating device, 21,121 Yoke, 22 Oscillating member, 22a First oscillating portion, 22b Second oscillating portion, 23 Magnetostrictive member, 24 Frame, 26 Coil, 26a,26b,126a,126b,226a,226b Connecting line, 27,127 Magnetic flux forming member, 31 Operating member, 32 Oscillation inducing member, 60,160,260,360,460,560,660,760 Circuit member, 62 Rectification portion, 63 Storage unit, 65,465,565,665,765 Board, 66,166,266,366,466,566 First board, 66a First surface, 66b Second surface, 70,370 Wireless communication unit, 71 Wireless device, 72 Antenna, 80 Human-powered vehicle, 81 Driven device, 90 Control unit, D1 First direction, Sc Command signal

Claims

1. York and a swinging member including a magnetostrictive member and swingably provided in a first direction relative to the yoke; a coil attached to at least one of the yoke and the rocking member; A circuit member electrically connected to the coil; a housing that accommodates the yoke, the swing member, and the circuit member, The power generating device, wherein the circuit member includes a wireless communication unit configured to wirelessly transmit a signal.

2. The power generating device according to claim 1 , wherein the wireless communication unit at least partially does not face any of the yoke, the coil, and the oscillating member.

3. The power generation apparatus according to claim 1 , wherein the wireless communication unit includes an antenna configured to wirelessly transmit the signal to an outside of the power generation apparatus, and a wireless device electrically connected to the antenna and configured to transmit the signal to the antenna.

4. The power generating device according to claim 3 , wherein the antenna does not at least partially face any of the yoke, the coil, and the oscillating member.

5. The power generating device according to claim 3 , wherein the antenna is disposed in an unshielded position that allows the signal to reach outside the housing.

6. The power generating device according to claim 3 , wherein the antenna is offset from the yoke, the coil, and the oscillating member when viewed from the first direction.

7. the circuit member includes a substrate having a first surface and a second surface opposite the first surface; the wireless communication unit is provided on the first surface, The power generating device according to claim 1 , wherein the first surface at least partially faces none of the yoke, the coil, and the oscillating member.

8. The power generating device according to claim 1 , wherein the circuit member at least partially overlaps with at least one of the yoke, the coil, and the oscillating member when viewed from the first direction.

9. The power generating device according to claim 1 , wherein the circuit member at least partially overlaps with at least one of the yoke, the coil, and the oscillating member when viewed from a non-parallel direction different from the first direction.

10. The generator of claim 1 , wherein the housing is formed to include a non-magnetic material.

11. The coil is attached to the rocking member, the circuit member is electrically connected to the coil via a connecting wire, The swing member has a first swing portion and a second swing portion, When the swing member swings in the first direction, a first amplitude of the first swing portion is greater than a second amplitude of the second swing portion; The power generating device according to claim 1 , wherein a first distance between the first oscillating portion and a connection position at which the coil is connected to the connection line is longer than a second distance between the connection position and the second oscillating portion.

12. York and a swinging member including a magnetostrictive member and swingably provided in a first direction relative to the yoke; A coil attached to the rocking member; a circuit member electrically connected to the coil via a connection wire, The swing member has a first swing portion and a second swing portion, When the swing member swings in the first direction, a first amplitude of the first swing portion is greater than a second amplitude of the second swing portion; A power generating device, wherein a first distance between the first oscillating part and a connection position where the coil is connected to the connection line is longer than a second distance between the connection position and the second oscillating part.

13. The first swing portion is provided apart from the second swing portion in a second direction different from the first direction, The power generating device according to claim 12 , wherein the second swinging portion contacts the yoke.

14. The power generating device according to claim 1 or 12, wherein the yoke is formed to include a magnetic material.

15. The oscillating member further includes a frame to which the magnetostrictive member is attached and which is formed to include a non-magnetic material; The power generating apparatus according to claim 1 or 12, wherein the yoke supports at least one of the magnetostrictive member and the frame.

16. The power generating device according to claim 1 or 12, further comprising a magnetic flux forming member that forms a magnetic flux passing through the magnetostrictive member.

17. The power generating device according to claim 16 , wherein the magnetic flux generating member is disposed between the yoke and the oscillating member.

18. The power generating device according to claim 1 or 12, wherein the circuit member includes: a rectifier that rectifies a current generated in the coil; and a power storage unit that supplies the current rectified by the rectifier to a wireless communication unit.

19. The power generating device according to claim 18 , wherein the circuit member includes a first substrate on which at least one of the rectification unit, the power storage unit, and the wireless communication unit is mounted.

20. Further comprising an operating member configured to be operated by a user, The power generating device according to claim 1 , wherein the swingable member is configured to swing in the first direction in response to a user's operation of the operating member.

21. The power generating apparatus according to claim 20 , further comprising a swing inducing member configured to swing the swinging member in the first direction in response to an operation of the operating member by a user.

22. A control device for controlling an operation of a driven device, The power generating device according to claim 20; A control device comprising: a control unit that controls a wireless communication unit to wirelessly transmit a command signal to the driven device in response to an operation of the operating member by a user.

23. The control device according to claim 22 , wherein the control unit is implemented on the circuit member.

24. The control device of claim 22 , wherein the control unit is configured to generate the command signal based on information about a voltage generated in the coil.

25. The control device and the driven device are configured to be mounted on a human-powered vehicle; The control system of claim 22 , wherein the driven device comprises an actuator.

26. 23. The control device of claim 22, wherein the driven device includes at least one of a transmission, an adjustable seat post, a suspension, a braking device, a drive unit, and a lamp attached to a human-powered vehicle.

Images