Power generation device and control device

Abstract

To prevent a magnetostrictive power generation element from becoming too large.SOLUTION: A power generation device is provided that includes: a frame formed to contain a non-magnetic material; a magnetostrictive member attached to the frame; a yoke that is formed to include a magnetic material, and that has a first yoke portion that supports at least one of the frame and the magnetostrictive member so as to be swingable in a first direction and a second yoke portion that is connected to the first yoke portion and is arranged alongside the magnetostrictive member in a second direction different from the first direction; and a coil wound around at least one of the yoke, the frame, and the magnetostrictive member.SELECTED DRAWING: Figure 4

Description

[Technical field]

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

[0002] A known power generating method that utilizes changes in magnetic flux of a permanent magnet is a power generating method that uses a magnetostrictive power generating element (see, for example, Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] International Publication No. 2017 / 183325 Summary of the Invention [Problem to be solved by the invention]

[0004] In the above magnetostrictive power generating element, the coil is fixed in a wound state around the magnetostrictive plate, and a part of the frame yoke is arranged in the vibration direction of the magnetostrictive plate. Therefore, in order to prevent contact between the coil, which vibrates together with the magnetostrictive plate, and the frame yoke, the distance between the coil and the frame yoke tends to be large. Also, in order to improve the power generation efficiency of the magnetostrictive power generating element, it is necessary to increase the number of turns of the coil, so the dimensions of the coil tend to be large. For these reasons, the above magnetostrictive power generating element has a configuration that tends to be large, making it difficult to incorporate the magnetostrictive power generating element into a small space for use.

[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 that can prevent the device from becoming large in size. [Means for solving the problem]

[0006] (1) One aspect of the present invention that solves the above-mentioned problems is a power generating device comprising: a frame formed to contain a non-magnetic material; a magnetostrictive member attached to the frame; a first yoke portion supporting the frame and at least one of the magnetostrictive members so as to be swingable in a first direction; and a second yoke portion connected to the first yoke portion and arranged alongside the magnetostrictive member in a second direction different from the first direction, the yoke being formed to contain a magnetic material; and a coil wound around the yoke, the frame, and at least one of the magnetostrictive members.

[0007] According to the above configuration, the power generating device can be prevented from becoming large in the first direction, compared to a case where the yoke is disposed in the first direction in which the magnetostrictive member and the frame swing. This can prevent the power generating device from becoming large in size. Therefore, the power generating device can be easily installed in a small space, and the convenience of the power generating device can be improved.

[0008] (2) In one aspect of the present invention, in the power generating device according to (1), the first yoke portion may be formed integrally with the second yoke portion.

[0009] According to the above configuration, an increase in the number of parts in the power generating device can be suppressed, compared to a case in which the first yoke portion and the second yoke portion are made of different materials.

[0010] (3) One aspect of the present invention is a power generating device as described in (1) or (2), wherein the first yoke portion may have a connecting portion connected to the second yoke portion, and a support portion arranged away from the connecting portion in the second direction and supporting at least one of the frame and the magnetostrictive member.

[0011] According to the above configuration, the magnetostrictive member and the second yoke portion can be arranged in the second direction via the first yoke portion simply by attaching the magnetostrictive member to the support portion of the first yoke portion, thereby preventing an increase in the number of manufacturing steps for the power generating device.

[0012] (4) One aspect of the present invention is the power generating device according to any one of (1) to (3), wherein the coil may be wound around the magnetostrictive member.

[0013] According to the above configuration, a part of the closed magnetic circuit can be formed inside the coil, so that the generated voltage can be stably generated in the coil by oscillating the magnetostrictive member in the first direction, and therefore the generated voltage of the power generating device can be stably increased.

[0014] (5) One aspect of the present invention is the power generating device according to (4), in which the coil may be wound around both the frame and the magnetostrictive member.

[0015] According to the above-described configuration, the coil surrounding the magnetostrictive member can be easily formed, so that an increase in the number of steps required for manufacturing the power generating device can be suppressed.

[0016] (6) One aspect of the present invention is the power generation device described in (5), wherein the coil has a first coil portion facing the frame and a second coil portion formed integrally with the first coil portion and facing the magnetostrictive member, and the frame and the magnetostrictive member may be arranged in an internal space defined by the first coil portion and the second coil portion.

[0017] According to the above configuration, a part of the closed magnetic circuit can be stably formed in the internal space of the coil, so that the generated voltage can be stably generated in the coil.

[0018] (7) One aspect of the present invention is a power generating device described in any of (1) to (6), wherein the magnetostrictive member has a first extension portion extending in a third direction different from the first direction and the second direction, the frame has a second extension portion extending in the third direction, and the first extension portion may at least partially overlap the second extension portion in the first direction.

[0019] According to the above configuration, the first extension portion can be directly attached to the second extension portion, thereby preventing an increase in the number of parts of the power generation device compared to a configuration in which the first extension portion and the second extension portion are indirectly attached via separate members.

[0020] (8) One aspect of the present invention is the power generating device described in (7), wherein the first extension portion has a first end contacting the yoke and a second end spaced apart from the first end in the third direction, the second extension portion has a third end contacting the yoke and a fourth end spaced apart from the third end in the third direction, and the second end may overlap with the fourth end when viewed from the first direction.

[0021] According to the above configuration, since it is easier to reduce the dimension of the first extension portion in the third direction compared to when the second end portion is located on one side of the fourth end portion in the third direction, it is easier to prevent the power generating device from becoming large in size in the third direction. This makes it possible to prevent the power generating device from becoming large in size.

[0022] (9) One aspect of the present invention is the power generating device described in (7), wherein the first extension portion has a first end contacting the yoke and a second end spaced apart from the first end in the third direction, and the second extension portion has a third end contacting the yoke and a fourth end spaced apart from the third end in the third direction, and a first distance between the second end and the first end may be smaller than a second distance between the fourth end and the first end.

[0023] According to the above configuration, the dimension of the magnetostrictive member in the third direction can be easily reduced, and therefore the volume of the magnetostrictive member can be easily reduced, which in turn can prevent an increase in the material cost of the magnetostrictive member, and therefore prevent an increase in the manufacturing cost 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), in which the yoke may have a plurality of yoke plates stacked in the first direction.

[0025] According to the above configuration, the size of the power generating device in the first direction can be adjusted by adjusting the number of stacked yoke plates, which makes it easier to prevent the power generating device from becoming large in the first direction. This makes it easier to install the power generating device in a small space, which improves the convenience of the power generating device.

[0026] (11) One aspect of the present invention is a power generating device comprising: a magnetostrictive member; a yoke that supports the magnetostrictive member so that it can oscillate in a first direction and is formed to contain a magnetic material, the yoke having a plurality of yoke plates that are stacked in the first direction; and a coil wound around the yoke and at least one of the magnetostrictive members.

[0027] According to the above-described configuration, the manufacturing cost of the yoke can be reduced compared to a configuration in which the entire yoke is molded as a single unit, and therefore an increase in the manufacturing cost of the power generating device can be suppressed.

[0028] (12) One aspect of the present invention is the power generating device described in (11), wherein the multiple yoke plates include at least one first yoke plate and at least one second yoke plate, and the magnetostrictive member may be positioned between the at least one first yoke plate and at least one second yoke plate in the first direction.

[0029] According to the above configuration, when the magnetostrictive member oscillates in the first direction, the distance between the magnetostrictive member and the yoke can be easily prevented from fluctuating, and therefore, when the magnetostrictive member oscillates in the first direction, the magnetic flux density passing through the magnetostrictive member can be easily prevented from decreasing, so that the generated voltage generated in the coil can be stabilized.

[0030] (13) An aspect of the present invention is the power generating device according to any one of (1) to (12), which may further include a magnetic flux forming member that forms a magnetic flux passing through the magnetostrictive member.

[0031] According to the above-described configuration, the magnetic flux density of the magnetic flux passing through the magnetostrictive member can be increased, and therefore the generated voltage of the power generating device can be increased.

[0032] (14) In one aspect of the present invention, in the power generating device according to (13), the magnetic flux generating member may be disposed between the yoke and the magnetostrictive member.

[0033] According to the above-described configuration, the magnetic flux density of the closed magnetic circuit passing through the magnetic flux generating member, the yoke, and the magnetostrictive member can be increased more stably, and therefore the generated voltage of the power generating device can be increased more stably.

[0034] (15) One aspect of the present invention is a power generating device comprising: a frame formed to contain a non-magnetic material; a magnetostrictive member attached to the frame; a first yoke portion supporting the frame and the magnetostrictive member so as to be swingable in a first direction; and a second yoke portion connected to the first yoke portion and arranged alongside the magnetostrictive member in the first direction, the yoke being formed to contain a magnetic material; a support member arranged on the opposite side of the first yoke portion with respect to the frame and the magnetostrictive member in the first direction, the support member supporting the frame and the magnetostrictive member together with the first yoke portion; and a coil wound around at least one of the yoke, the frame, and the magnetostrictive member, wherein when viewed from the first direction, the support member overlaps the frame, the magnetostrictive member, and the first yoke portion.

[0035] According to the above configuration, the power generating device can be prevented from increasing in size in the second direction compared to a case where the second yoke portion is arranged next to the magnetostrictive member in the second direction. This can prevent the power generating device from increasing in size. Therefore, the power generating device can be easily installed in a small space, improving the convenience of the power generating device.

[0036] (16) In one aspect of the present invention, in the power generating device according to (15), the first yoke portion may extend linearly in the first direction.

[0037] According to the above configuration, the rigidity of the first yoke portion in the first direction can be increased, so that the frame and the magnetostrictive member that oscillate in the first direction can be supported more stably in the first direction D1 by the first yoke portion. This allows each of the frame and the magnetostrictive member to oscillate more stably in the first direction, so that the generated voltage can be more suitably increased.

[0038] (17) In one aspect of the present invention, in the power generating device according to (15) or (16), the support member may be formed to include a non-magnetic material.

[0039] According to the above configuration, it is possible to prevent the magnetic flux from leaking from the closed magnetic circuit to the housing via the support member, and therefore to prevent a decrease in the magnetic flux density of the magnetic flux passing through the closed magnetic circuit, thereby preventing a decrease in the generated voltage of the power generating device and a decrease in the power generating efficiency of the power generating device.

[0040] (18) One aspect of the present invention is a power generating device described in any of (15) to (17), wherein the frame and the magnetostrictive member each extend in a third direction different from the first direction, the frame has a first frame end and a second frame end that is positioned farther away from the support member in the third direction than the first frame end, the magnetostrictive member has a first end and a second end that is positioned farther away from the support member in the third direction than the first end, and when viewed from the first direction, the support member may overlap each of the first frame end and the first end.

[0041] According to the above configuration, it is easy to increase the dimensions in the third direction of the portion of the frame and the magnetostrictive member that is disposed on one side of the support member in the third direction. This makes it easy to increase the amplitude of the frame and the magnetostrictive member in the first direction D1, and therefore makes it easy to increase the mechanical distortion of the magnetostrictive member. Therefore, it is easy to increase the amount of fluctuation of the magnetic flux passing through the closed magnetic circuit, and therefore the generated voltage of the power generating device can be more suitably increased.

[0042] (19) An aspect of the present invention is the power generating device according to any one of (15) to (18), which may further include a fixing member that fixes the support member to the first yoke portion.

[0043] According to the above configuration, the frame and the magnetostrictive member can be supported more stably in the first direction by the support member and the first yoke portion, and therefore the frame and the magnetostrictive member can be oscillated more stably in the first direction. Therefore, the fluctuation amount of the magnetic flux passing through the closed magnetic circuit can be increased more stably, and the generated voltage of the power generating device can be increased more suitably.

[0044] (20) An aspect of the present invention is the power generating device according to any one of (15) to (19), wherein the first yoke portion and the second yoke portion may be formed integrally with each other.

[0045] According to the above configuration, an increase in the number of parts in the power generating device can be suppressed, compared to a case in which the first yoke portion and the second yoke portion are made of different materials.

[0046] (21) One aspect of the present invention is the power generating device according to any one of (15) to (20), in which the coil may be wound around the magnetostrictive member.

[0047] According to the above configuration, a part of the closed magnetic circuit can be formed inside the coil, so that the generated voltage can be stably generated in the coil by oscillating the magnetostrictive member in the first direction, and therefore the generated voltage of the power generating device can be stably increased.

[0048] (22) One aspect of the present invention is the power generating device according to (21), wherein the coil may be wound around both the frame and the magnetostrictive member.

[0049] According to the above-described configuration, the coil surrounding the magnetostrictive member can be easily formed, so that an increase in the number of steps required for manufacturing the power generating device can be suppressed.

[0050] (23) One aspect of the present invention is the power generation device described in (22), wherein the coil has a first coil portion facing the frame and a second coil portion formed integrally with the first coil portion and facing the magnetostrictive member, and the frame and the magnetostrictive member may be arranged in an internal space defined by the first coil portion and the second coil portion.

[0051] According to the above configuration, a part of the closed magnetic circuit can be stably formed in the internal space of the coil, so that the generated voltage can be stably generated in the coil.

[0052] (24) An aspect of the present invention is the power generating device according to any one of (15) to (23), which may further include a magnetic flux forming member that forms a magnetic flux passing through the magnetostrictive member.

[0053] According to the above-described configuration, the magnetic flux density of the magnetic flux passing through the magnetostrictive member can be increased, and therefore the generated voltage of the power generating device can be increased.

[0054] (25) In one aspect of the present invention, in the power generating device according to (24), the magnetic flux generating member may be disposed between the yoke and the magnetostrictive member.

[0055] According to the above-described configuration, the magnetic flux density of the closed magnetic circuit passing through the magnetic flux generating member, the yoke, and the magnetostrictive member can be increased more stably, and therefore the generated voltage of the power generating device can be increased more stably.

[0056] (26) One aspect of the present invention is a power generating device as described in any of (1) to (25), further comprising an operating member configured to be operated by a user, and the magnetostrictive member may be configured to oscillate in the first direction in response to operation of the operating member by the user.

[0057] According to the above configuration, a user can operate the operating member to generate a generated voltage in the coil, which makes it possible to easily generate a generated voltage, thereby improving the convenience of the power generation device.

[0058] (27) One aspect of the present invention is the power generating device described in (26), which may further include a swing-inducing member configured to swing the magnetostrictive member in the first direction in response to operation of the operating member by a user.

[0059] According to the above configuration, a user can operate the operating member to generate a generated voltage in the coil, which makes it possible to easily generate a generated voltage, thereby improving the convenience of the power generation device.

[0060] (28) One aspect of the present invention is the power generation device described in (27), in which the rocking motion inducing member may be configured to move linearly in the first direction in response to a user's operation of the operating member.

[0061] According to the above configuration, a user can cause the coil to generate a generated voltage by performing a simple operation of pressing the operating member in the first direction, thereby improving the convenience of the power generating device.

[0062] (29) One aspect of the present invention is the power generation device described in (27), wherein the rocking motion inducing member may be configured to rotate about a rotation axis extending in a fourth direction different from the first direction in response to operation of the operating member by a user.

[0063] According to the above configuration, it is possible to prevent the oscillation induction member from interfering with the second extension portion or the magnetostrictive member that oscillates in the first direction, and therefore it is possible to stably oscillate the second extension portion and the magnetostrictive member in the first direction, thereby stably increasing the generated voltage of the power generation device.

[0064] (30) One aspect of the present invention is a control device that controls the operation of a driven device, comprising: a power generation device described in any one of (26) to (29); and a circuit member electrically connected to the coil.

[0065] According to the above configuration, compared to a control device having a power source such as a battery that drives the circuit components, it is possible to suppress the electromotive force of the power source from decreasing over the time the control device is used. Therefore, it is not necessary to replace or charge the power source, and it is possible to suppress the drive of the circuit components from stopping when the control device is used. Therefore, it is possible to improve the convenience of the control device.

[0066] (31) One aspect of the present invention is the control device described in (30), wherein the circuit member may have a control unit configured to generate a command signal based on information related to a voltage generated in the coil, and a communication unit configured to transmit the command signal to the driven device.

[0067] According to the above configuration, a user can cause the driven device to perform a desired operation by simply performing the simple operation of pressing the operating member, thereby improving the convenience of the control device and the driven device.

[0068] (32) One aspect of the present invention is the control device described in (31), further comprising a detection member configured to detect operation of the operating member, and the control unit may be configured to generate the command signal based on a detection signal transmitted from the detection member.

[0069] According to the above configuration, the control unit can more accurately detect the timing when the user presses the operating member and the duration of the pressing, based on the detection signal, and can therefore more accurately determine the operation performed by the user, thereby more reliably causing the driven device to perform the desired operation.

[0070] (33) One aspect of the present invention is the control device according to (32), wherein the detection member may have a tactile switch configured to be pressed in response to operation of the operating member.

[0071] According to the above configuration, the user can feel a clicking sensation when operating the operating member, which makes it easier for the user to recognize that he or she has operated the operating member, thereby improving the operability of the control device.

[0072] (34) One aspect of the present invention is a control device according to any one of (31) to (33), which may further include a housing formed to include a non-magnetic material and which houses the power generation device and the circuit components therein.

[0073] According to the above configuration, it is possible to prevent malfunctions such as a short circuit caused by the power generation device and circuit components coming into contact with conductive components arranged around the control device, thereby stabilizing the operation of the power generation device and circuit components.

[0074] (35) One aspect of the present invention is a control device described in any one of (31) to (34), wherein the communication unit may have a wireless communication unit configured to wirelessly transmit the command signal to the driven device.

[0075] According to the above configuration, it is possible to prevent the wireless signal transmitted from the wireless communication unit to the driven device from being magnetically shielded by the housing, and therefore it is possible to stably transmit a command signal from the communication unit to the driven device, thereby more reliably causing the driven device to perform a desired operation.

[0076] (36) One aspect of the present invention is the control device described in any of (30) to (35), wherein the operating member has a depression portion configured to be pressed by a user, the coil is configured to generate a first voltage in response to pressing on the depression portion, and the first voltage may increase in accordance with the magnitude of the pressing force on the depression portion.

[0077] According to the above configuration, the user can cause the driven device to perform different operations by appropriately changing the pressing force when operating the operating member, thereby further increasing the convenience of the control device and the driven device.

[0078] (37) One aspect of the present invention is a control device described in any of (30) to (36), 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.

[0079] According to the above configuration, the user can cause the driven device to perform a desired operation by simply pressing the operating member, thereby improving the convenience of the human-powered vehicle.

[0080] (38) One aspect of the present invention is the control device described in any one of (30) to (37), wherein the driven device may include at least one of a transmission, an adjustable seat post, a suspension, a drive unit, and a lamp attached to a human-powered vehicle.

[0081] 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

[0082] According to the present invention, an effect of suppressing an increase in size can be obtained. [Brief description of the drawings]

[0083] [Figure 1] FIG. 2 is a perspective view showing a configuration example of a control device according to the first embodiment. [Diagram 2] 4 is a diagram showing a configuration example of the control device of the first 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 the control device of the first embodiment, taken along line III-III of FIG. 2; FIG. [Figure 4] 1 is a perspective view showing a part of a configuration example of a power generation device according to a first embodiment. [Diagram 5] FIG. 2 is an exploded perspective view showing a part of a configuration example of the power generation device of the first embodiment. [Figure 6] 4 is a cross-sectional view of the configuration example of the control device of the first embodiment when an operating member is operated. FIG. [Figure 7] 2 is a block diagram showing a configuration example of a control device according to the first embodiment; FIG. [Figure 8] FIG. 3 is a first diagram showing a waveform of a generated voltage in the configuration example of the control device of the first embodiment. [Figure 9] FIG. 4 is a second diagram showing the waveform of the generated voltage in the configuration example of the control device of the first embodiment. [Figure 10] FIG. 4 is a third diagram showing the waveform of the generated voltage in the configuration example of the control device of the first embodiment. [Figure 11] FIG. 2 is a diagram illustrating an example of use of the control device according to the first embodiment. [Figure 12] 13 is a diagram showing a configuration example of a control device according to a first modified example of the first embodiment, as viewed from the other side in the first direction. FIG. [Figure 13] 13 is a diagram showing a configuration example of a control device according to a second modified example of the first embodiment, as viewed from the other side in the first direction. FIG. [Figure 14] 14 is a cross-sectional view showing a configuration example of a control device according to a second modified example of the first embodiment, and is a cross-sectional view taken along line XIV-XIV in FIG. 13. [Figure 15] 13 is a cross-sectional view of the exemplary configuration of the control device according to the second modified example of the first embodiment when an operating member is operated. FIG. [Figure 16] 13 is a diagram showing a configuration example of a control device according to a second embodiment as viewed from the other side in the first direction. FIG. [Figure 17] 17 is a cross-sectional view showing a configuration example of a control device according to a second embodiment, taken along line XVII-XVII of FIG. 16. [Figure 18] FIG. 11 is a cross-sectional view showing an example of the configuration of a control device according to a modified example of the second embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0084] In the following description, the first direction D1 is shown in each figure as appropriate. The first direction D1 is the direction in which the magnetostrictive member in the embodiment described below oscillates. 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."

[0085] 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."

[0086] The third direction D3 is shown in each figure as appropriate. The third direction D3 is the direction in which the second extension portion of the magnetostrictive member in the embodiment described below extends. The third direction D3 is a direction different from the first direction D1 and the second direction D2. In this embodiment, the third direction D3 is a direction 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."

[0087] First Embodiment Fig. 1 is a perspective view showing a configuration example of the control device 10 of this embodiment. Fig. 2 is a view showing 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 lid 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.

[0088] 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. 7). The driven device 81 has an actuator. The driven device 81 includes at least one of a transmission attached to the human-powered vehicle 80, an adjustable seat post, a suspension, a drive unit, and a lamp. 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 housing 15, a power generation device 20, a detection member 40, and a circuit member 60.

[0089] 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 power generating device 20, the detection member 40, and the circuit member 60 inside. 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, it is sufficient that the housing 15 has 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 portion 16, a lid portion 17, and a partition plate 18.

[0090] 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.

[0091] As shown in Fig. 1, the side wall portion 16a has a rectangular tubular shape extending in a 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 a third direction D3, and the short side of the side wall portion 16a extends in a second direction D2. As shown in Fig. 3, the side wall portion 16a surrounds the power generation device 20, 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.

[0092] 1, the lid portion 17 has a plate shape that extends 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.

[0093] 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 of another shape, such as a circle. The insertion hole 17a is provided near the center of the lid portion 17 in the second direction D2 and on one edge portion (+D3 side) in the third direction D3.

[0094] As shown in Fig. 3, the partition plate 18 has a plate shape extending in a direction perpendicular to the first direction D1. As shown in Figs. 2 and 3, the partition plate 18 is fixed to the inner surface of the side wall portion 16a. The partition plate 18 is partially fixed to the side wall portion 16a. As shown in Fig. 3, a space is formed between the partition plate 18 and the side wall portion 16a. At least one through hole 18a is provided in the partition plate 18. In this embodiment, two through holes 18a are provided in the partition plate 18.

[0095] The two through holes 18a are holes that penetrate in the first direction D1 through the partition plate 18. The two through holes 18a are located on the other side in the third direction D3 (-D3 side) of the center of the partition plate 18 in the third direction D3.

[0096] Fig. 4 is a perspective view showing a part of an example of the configuration of the power generation device 20 of this embodiment. Fig. 5 is an exploded perspective view showing a part of an example of the configuration of the power generation device 20 of this embodiment. As shown in Fig. 3, the power generating device 20 is accommodated inside the housing 15. The power generating device 20 is an inverse magnetostrictive power generating device. As shown in Fig. 4, the power generating device 20 includes a yoke 21, a magnetostrictive member 23, a frame 24, a coil 26, a magnetic flux generating member 27, and a crimping pin 29. In addition, as shown in Fig. 3, the power generating device 20 includes an operation unit 30.

[0097] In the first direction D1, the yoke 21 is disposed between the cover portion 17 and the partition plate 18. The yoke 21 is disposed at an interval in the first direction D1 from the cover portion 17 and the partition plate 18. 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 so as 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 is formed of, for example, soft magnetic steel. The yoke 21 may be formed of, for example, SS400, which is one type of soft magnetic steel. The yoke 21 may include both a magnetic material and a non-magnetic material. The yoke 21 has a first yoke portion 21a and a second yoke portion 21b connected to the first yoke portion 21a.

[0098] The first yoke portion 21a has a substantially rectangular parallelepiped shape extending in the second direction D2. 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 second direction D2. The second yoke end portion 21q is located on the other side in the second direction D2 of the first yoke end portion 21p. The first yoke portion 21a is disposed on the other side (-D3 side) in the third direction D3 of the coil 26. The first yoke portion 21a is fixed to the side wall portion 16a. The first yoke portion 21a has a connecting portion 21a1 and a supporting portion 21a2.

[0099] The connecting portion 21a1 is a portion of the first yoke portion 21a that is connected to the second yoke portion 21b. The connecting portion 21a1 is a portion of the first yoke portion 21a on one side (+D2 side) of the second direction D2. When viewed from the third direction D3, the connecting portion 21a1 overlaps with the second yoke portion 21b. The supporting portion 21a2 is a portion of the first yoke portion 21a that supports the frame 24 and the magnetostrictive member 23. In this embodiment, the supporting portion 21a2 is a portion that overlaps with the magnetostrictive member 23 when viewed from the first direction D1. The supporting portion 21a2 is disposed on the other side (-D2 side) of the second direction D2 with respect to the connecting portion 21a1. The supporting portion 21a2 is disposed away from the connecting portion 21a1 in the second direction D2.

[0100] The second yoke portion 21b has a substantially rectangular parallelepiped shape extending in the third direction D3. 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 third direction D3. The fourth yoke end 21s is located on the other side of the third direction D3 than the third yoke end 21r. The second yoke portion 21b is disposed on one side (+D2 side) of the magnetostrictive member 23 and the coil 26 in the second direction D2. The second yoke portion 21b faces the magnetostrictive member 23 and the coil 26 with a gap therebetween in the second direction D2. The second yoke portion 21b is disposed alongside the magnetostrictive member 23 in the second direction D2. In the present invention, "arranged side by side in the second direction D2" does not only include the case where they are arranged side by side in the second direction D2 strictly, but also includes the case where they are arranged side by side in a direction inclined from the second direction D2 to the first direction D1. In other words, "arranged side by side in the second direction D2" is a concept that includes an arrangement other than overlapping in the first direction D1.

[0101] The fourth yoke end 21s of the second yoke portion 21b is connected to the connecting portion 21a1. 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 other than the fourth yoke end 21s of the second yoke portion. A 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 first yoke portion 21a forms an integral single member together 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 (-D2 side) of the second direction D2.

[0102] 5, the yoke 21 includes a plurality of yoke plates 21d, an intermediate yoke plate 21g, and an annular plate 21i. As shown in FIG. 4, 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.

[0103] As shown in Fig. 5, 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, the yoke plate 21d has a substantially L-shape. A first portion 21k that is a portion of the yoke plate 21d extending in the second direction D2 constitutes the first yoke portion 21a. A second portion 21m that is a portion of the yoke plate 21d extending in the third direction D3 constitutes the second yoke portion 21b. The multiple yoke plates 21d include a first yoke plate 21e and a second yoke plate 21f.

[0104] 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 have three first yoke plates 21e. That is, the multiple yoke plates 21d have at least one first yoke plate 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. That is, the yoke 21 has multiple yoke plates 21d stacked in the first direction D1.

[0105] 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 have three second yoke plates 21f. That is, the multiple yoke plates 21d have at least one second yoke plate 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. That is, the yoke 21 has multiple yoke plates 21d stacked in the first direction D1.

[0106] The intermediate yoke plate 21g has a substantially L-shaped plate shape. The 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 21t and a second intermediate yoke end 21u. The second intermediate yoke end 21u is an end opposite to the first intermediate yoke end 21t in the second direction D2. The second intermediate yoke end 21u is located on the other side of the first intermediate yoke end 21t in the second direction D2. As shown in FIG. 4, the intermediate yoke plate 21g contacts the first yoke plate 21e in the first direction D1. The intermediate yoke plate 21g contacts the second yoke plate 21f in the first direction D1 via the frame 24. As shown in FIG. 5, the intermediate yoke plate 21g is located on one side (+D2 side) of the magnetostrictive member 23 in the second direction D2.

[0107] 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 across the magnetostrictive member 23 in the second direction D2. The annular plate 21i is disposed between the first yoke plate 21e and the second yoke plate 21f. As shown in FIG. 4, the annular plate 21i contacts the first yoke plate 21e in the first direction D1. The annular plate 21i contacts the second yoke plate 21f in the first direction D1 via the frame 24.

[0108] 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 a second extension portion 24c.

[0109] The first frame portion 24a has a plate shape extending in the second direction D2. When viewed from the first direction D1, the first frame portion 24a overlaps with the first yoke portion 21a. As shown in FIG. 4 and FIG. 5, 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.

[0110] The second frame portion 24b has a plate shape extending in the third direction D3. 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.

[0111] The second extension portion 24c extends in the third direction D3. More specifically, the second extension portion 24c extends from the first frame portion 24a to one side (+D3 side) of the third direction D3. When viewed from the first direction D1, the second extension portion 24c has a substantially rectangular shape. As shown in FIG. 2, the second extension portion 24c is disposed on one side of the first yoke portion 21a in the third direction D3 and on the other side (-D2 side) of the second yoke portion 21b in the second direction D2. The second 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 first yoke portion 21a supports the frame 24 so as to be swingable in the first direction D1. As shown in FIG. 3, the second extension portion 24c has a third end 24e and a fourth end 24f.

[0112] The third end 24e is an end of the second extension portion 24c on the other side (-D3 side) in the third direction D3. The third end 24e is connected to the first frame portion 24a. The third end 24e contacts the yoke 21. The fourth end 24f is an end of the second extension portion 24c on one side (+D3) in the third direction D3. The fourth end 24f is disposed away from the third end 24e in the third direction D3.

[0113] As shown in FIG. 5, the magnetostrictive member 23 has a plate shape extending in the third direction D3. The plate thickness direction of the magnetostrictive member 23 is the first direction D1. When viewed from the first direction D1, the magnetostrictive member 23 has a substantially rectangular shape. When viewed from the first direction D1, the magnetostrictive member 23 overlaps with the second extension portion 24c. The magnetostrictive member 23 is attached to the second extension portion 24c. That is, the magnetostrictive member 23 is attached to the frame 24. When viewed from the second direction D2, the magnetostrictive member 23 overlaps with the intermediate yoke plate 21g. In the first direction D1, the magnetostrictive member 23 is located between the first yoke plate 21e and the second yoke plate 21f. The magnetostrictive member 23 is made of a magnetostrictive material. The magnetostrictive member 23 is made of, for example, an Fe-Ga alloy. The magnetic permeability of the magnetostrictive member 23 changes due to mechanical strain. Furthermore, the magnetization direction of the magnetostrictive member 23 changes due to mechanical strain. The magnetostrictive member 23 has a first extending portion 23a.

[0114] The first extension portion 23a is a portion of the magnetostrictive member 23 that extends in the third direction D3. In this embodiment, the magnetostrictive member 23 is composed of only the first extension portion 23a. When viewed from the first direction D1, the first extension portion 23a overlaps with the second extension portion 24c. That is, the first extension portion 23a at least partially overlaps with the second extension portion 24c in the first direction D1. Note that, when viewed from the first direction D1, a portion of the first extension portion 23a does not have to overlap with the second extension portion 24c. The first extension portion 23a is attached to the second extension portion 24c. This allows the first extension portion 23a to swing in the first direction D1 together with the second extension portion 24c. As shown in FIG. 3, the first extension portion 23a has a first end portion 23c and a second end portion 23d.

[0115] The first end 23c is an end of the first extension portion 23a on the other side (-D3 side) in the third direction D3. The first end 23c contacts the first yoke portion 21a. As a result, the magnetostrictive member 23 is supported by the first yoke portion 21a so as to be swingable in the first direction D1. That is, the first yoke portion 21a supports the magnetostrictive member 23 so as to be swingable in the first direction D1. That is, the first yoke portion 21a supports at least one of the frame 24 and the magnetostrictive member 23 so as to be swingable in the first direction D1. The second end 23d is an end of the first extension portion 23a on one side (+D3) in the third direction D3. The second end 23d is disposed away from the first end 23c in the third direction D3. In this embodiment, the second end 23d overlaps with the fourth end 24f when viewed from the first direction D1.

[0116] As shown in FIG. 4, in this embodiment, the coil 26 is wound around both the second extension portion 24c and the magnetostrictive member 23. That is, the coil 26 is wound around both the frame 24 and the magnetostrictive member 23. That is, the coil 26 is wound around the magnetostrictive member 23. The coil 26 is wound around at least one of the yoke 21, the frame 24, and the magnetostrictive member 23. The coil 26 may be wound around both the magnetostrictive member 23 and the yoke 21. As shown in FIG. 2, the coil 26 is disposed on one side (+D3 side) of the first yoke portion 21a in the third direction D3 and on the other side (-D2 side) of the second yoke portion 21b in the second direction D2. The coil 26 faces both the first yoke portion 21a and the second yoke portion 21b. The coil 26 has a first coil end 26g and a second coil end 26h. The second coil end 26h is an end opposite to the first coil end 26g in the third direction D3. The second coil end 26h is located on the other side of the third direction D3 than the first coil end 26g. The first coil end 26g of the coil 26 is located on the other side (-D3 side) of the third direction D3 than the fourth end 24f of the second extension portion 24c and the second end 23d of the first extension portion 23a. As shown in FIG. 3, the coil 26 is disposed on the other side (-D1 side) of the partition plate 18 in the first direction D1. The coil 26 has a first coil portion 26a and a second coil portion 26b. Two coil lead wires 26e and 26f are led out from the coil 26.

[0117] The first coil portion 26a is a portion of the coil 26 on one side (+D1 side) in the first direction D1. The first coil portion 26a faces the second extension portion 24c. That is, the first coil portion 26a faces the frame 24. The second coil portion 26b is a portion of the coil 26 on the other side (+D1 side) in the first direction D1. The second coil portion 26b is formed integrally with the first coil portion 26a. The second coil portion 26b faces the magnetostrictive member 23. As shown in FIG. 4, an internal space 26c is formed between the first coil portion 26a and the second coil portion 26b. The internal space 26c is a space defined by the first coil portion 26a and the second coil portion 26b. The magnetostrictive member 23 is disposed in the internal space 26c. The second extension portion 24c of the frame 24 is disposed in the internal space 26c.

[0118] As shown in FIG. 3, the coil lead wire 26e is connected to one end of the coil 26. The coil lead wire 26f is connected to the other end of the coil 26. The coil lead wires 26e, 26f are passed through different through holes 18a in the first direction D1 and connected to the circuit member 60. As a result, the coil 26 is electrically connected to the circuit member 60 via the coil lead wires 26e, 26f. An induced current generated in the coil 26 is supplied to the circuit member 60 via the coil lead wires 26e, 26f. Note that, when the number of through holes 18a provided in the partition plate 18 is only one, the coil lead wires 26e, 26f are passed through the same through hole 18a in the first direction D1 and connected to the circuit member 60.

[0119] 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 (−D2 side) in the second direction D2. As shown in FIG. 2, the magnetic flux forming member 27 is disposed on one side (+D3 side) of the third direction D3 with respect to 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 second direction D2. The magnetic flux forming member 27 is disposed between the yoke 21 and the magnetostrictive member 23. The magnetic flux forming member 27 is disposed facing the magnetostrictive member 23 with a gap in the second direction D2. 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 passing through the magnetostrictive member 23. As a result, a closed magnetic circuit Mc passing through the magnetic flux generating member 27, the magnetostrictive member 23, and the yoke 21 is formed.

[0120] 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 second 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 internal space 26c of the coil 26, varies. Due to the variation in the magnetic flux passing through the inside of the coil 26, an induced current is generated in the coil 26. As a result, the generated voltage Vg can be generated in the coil 26. In other words, the power generating device 20 generates power by the magnetostrictive member 23 oscillating in the first direction D1.

[0121] When operated by a user, the operating unit 30 swings the magnetostrictive member 23 in the first direction D1. As shown in Fig. 3, the operating unit 30 is disposed on one side (+D3 side) of the magnetostrictive member 23 in the third direction D3. The operating unit 30 includes an operating member 31, a swing inducing member 32, an elastic member 33, and a detection member holder 34.

[0122] 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.

[0123] 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 its long sides extending in the second direction D2. The main body 31a may have another shape, such as a cylindrical shape extending in the first direction D1.

[0124] 2 and 3, the connection 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 connection portion 31b has a generally square shape when viewed from the first direction D1. The connection portion 31b is movable in the first direction D1 inside the insertion hole 17a.

[0125] As shown in FIG. 2 and FIG. 3, the push-down portion 31c has a generally cylindrical shape protruding from the connecting portion 31b to 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. Note that 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 portion 30 when the user is not operating the operating member 31 as shown in FIG. 3 is referred to as the first position.

[0126] 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 as shown in Fig. 6 is referred to as the second position.

[0127] 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 a surface of the main body 31a facing the other side (-D3 side) of the third direction D3 toward the other side of the third direction D3. 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. The swinging motion inducing member 32 is configured to move linearly in the first direction D1 in response to the operation of the operating member 31 by the user. When viewed from the first direction D1, the swinging motion inducing member 32 overlaps with the magnetostrictive member 23 and the second extension portion 24c. In the first position, the swinging motion inducing member 32 is located on the other side (-D1 side) of the first direction D1 relative to the magnetostrictive member 23. As shown in FIG. 6, in the second position, the swing motion inducing member 32 is located on one side (+D1 side) in the first direction D1 relative to the second extension portion 24c.

[0128] As described above, when the user operates the operating member 31, the operating member 31 moves to one side (+D1 side) in 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 in the first direction D1, elastically deforming the second extension portion 24c and the magnetostrictive member 23 to one side in the first direction D1. When the operating member 31 further moves to one side in the first direction D1, as shown in FIG. 6, the swing motion inducing member 32 moves to one side in the first direction D1 beyond the second extension portion 24c. As a result, the magnetostrictive member 23 and the second extension portion 24c swing in the first direction D1 due to the restoring force of the second extension portion 24c. That is, the swing motion inducing member 32 is configured to swing the magnetostrictive member 23 in the first direction D1 in response to the operation of the operating member 31 by the user. The magnetostrictive member 23 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 internal space 26c of the coil 26 fluctuates, and a generated voltage Vg is generated in the coil 26. In the following description, the power generation of the power generating device 20 when the operating member 31 is moved to one side in the first direction D1 by the user operating the operating member 31 is referred to as the first power generation, and the electromotive force of the first power generation is referred to as the first voltage V1. That is, the coil 26 is configured to generate the first voltage V1 in response to the user pressing down the pressing portion 31c.

[0129] 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 second extension portion 24c to the other side of the first direction D1, thereby elastically deforming the second 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 second extension portion 24c swing in the first direction D1 due to the restoring force of the second extension portion 24c. This generates a generated voltage Vg in the coil 26. In the following description, the power generation of the power generation device 20 when the operating member 31 moves to the other side in the first direction D1 by releasing the press on the press-down portion 31c is referred to as second power generation, and the electromotive force of the second power generation is referred to as second voltage V2. In other words, the second voltage V2 is a voltage generated in the coil 26 in response to the release of the press on the press-down portion 31c by the user.

[0130] 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.

[0131] 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.

[0132] 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.

[0133] The detection member 40 is disposed on one side (+D1 side) of the operation member 31 in the first direction D1. The detection member 40 is held on the inner circumferential surface of the cylindrical portion 34b. 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 contacts 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. In this embodiment, the detection member 40 has a tactile switch 40a. The tactile switch 40a is configured to be pressed in response to the operation of the operation member 31 by the user. Note that the configuration of the detection member 40 is not limited to the configuration 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 connection line 41.

[0134] FIG. 7 is a block diagram showing an example of the configuration of the control device 10 of the present embodiment. 7, the connection wire 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. When the detection member 40 detects that the operating member 31 is operated, it transmits a detection signal S1 to the circuit member 60. In this embodiment, the detection member 40 is driven by power generated in the power generation device 20.

[0135] 3, the circuit member 60 has a plate shape extending in a direction perpendicular to the first direction D1. The circuit member 60 is fixed to a surface of the partition plate 18 facing one side in the first direction D1. The circuit member 60 has a control unit 61 and a communication unit 71.

[0136] The control unit 61 is mounted on the circuit member 60. As shown in FIG. 7, the control unit 61 is electrically connected to the coil 26 of the power generation device 20 via the coil lead wires 26e and 26f. That is, the circuit member 60 is electrically connected to the coil 26. Thus, when the coil 26 generates power, a generated voltage Vg, which is the voltage generated in the coil 26, is applied to the control unit 61. Therefore, in the control device 10 of this embodiment, the control unit 61 can be driven by the power generated in the power generation device 20. Furthermore, the control unit 61 can detect information related to the generated voltage Vg. In this embodiment, the information on the generated voltage Vg includes at least one of the voltage value of the generated voltage Vg and the value of the current supplied to the circuit member 60.

[0137] As described above, the control unit 61 is electrically connected to the detection member 40 via the connection line 41. This allows the control unit 61 to detect the detection signal S1 transmitted by the detection member 40. The control unit 61 generates a command signal Sc based on information on the generated voltage Vg and the detection signal S1. That is, the control unit 61 is configured to generate the command signal Sc based on information on the generated voltage Vg, i.e., the voltage generated in the coil 26. The control unit 61 is also configured to generate the command signal Sc based on the detection signal S1 transmitted from the detection member 40.

[0138] The control unit 61 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 communication unit 71. A control program executed by the control unit 61 is installed in the control unit 61. At least a part of the functions of the control unit 61 is realized by, for example, a processor such as a CPU (Central Processing Unit) executing the control program, i.e., software, stored in a storage unit (not shown).

[0139] At least a part of the functions of the control unit 61 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 61 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.

[0140] 3, the communication unit 71 is mounted on a surface facing one side (+D1 side) in the first direction D1 of the circuit member 60. As shown in Fig. 7, the communication unit 71 is configured to transmit a command signal Sc transmitted from the control unit 61 to the driven device 81. The communication unit 71 has a wireless communication unit 71a.

[0141] The wireless communication unit 71a is a wireless device configured to wirelessly transmit a command signal Sc to the driven device 81. That is, the wireless communication unit 71a can transmit a command signal Sc created based on a user's operation to the driven device 81. This allows the user to operate the driven device 81 by operating the operating member 31. Note that the communication method between the communication unit 71 and the driven device 81 is not particularly limited, and may be short-distance wireless communication such as BLE (Bluetooth Low Energy), NFC (Near Field Communication), and ANT.

[0142] Fig. 8 is a first diagram showing the waveform of the generated voltage Vg in the configuration example of the control device 10 of this embodiment. Fig. 9 is a second diagram showing the waveform of the generated voltage Vg in the configuration example of the control device 10 of this embodiment. Fig. 10 is a third diagram showing the waveform of the generated voltage Vg in the configuration example of the control device 10 of this embodiment.

[0143] Next, the relationship between the pressing force Fd, which is the force with which the user presses the pressing portion 31c of the operating member 31, and the generated voltage Vg will be described. FIG. 8 shows the generated voltage Vg when the pressing force Fd is large. FIG. 9 shows the generated voltage Vg when the pressing force Fd is small. Note that FIG. 8 and FIG. 9 show the generated voltage Vg when the pressing time Td, which is the time from when the user operates the operating member 31 to when the operation is released, is short. The horizontal axis of FIG. 8 and FIG. 9 is the time T [msec]. The vertical axis of FIG. 8 and FIG. 9 is the generated voltage Vg [V]. Note that the control unit 61 of this embodiment can detect at least the peak voltage V1p of the first voltage V1, the peak voltage V2p of the second voltage V2, and the inter-peak time Ti, which is the time between the peak voltage V1p and the peak voltage V2p.

[0144] In the power generating device 20 of this embodiment, the larger the pressing force Fd, the larger the force with which the oscillation inducing member 32 presses the magnetostrictive member 23 when the operating member 31 moves to one side (+D1 side) in the first direction D1, and therefore the amplitude of oscillation of the second extension portion 24c and the magnetostrictive member 23 in the first direction D1 becomes larger. Therefore, the larger the pressing force Fd, the larger the mechanical distortion of the magnetostrictive member 23, and therefore the larger the fluctuation in the magnetic permeability of the magnetostrictive member 23. Therefore, the larger the pressing force Fd, the larger the fluctuation amount of the magnetic flux passing through the closed magnetic circuit Mc shown in FIG. 3, and therefore the first voltage V1 becomes larger according to the magnitude of the pressing force Fd on the pressing portion 31c. Therefore, as shown in FIG. 8, in this embodiment, when the pressing force Fd is large, the peak voltage V1p of the first voltage V1 is about 55 [V], whereas as shown in FIG. 9, when the pressing force Fd is small, the peak voltage V1p becomes a small voltage of about 28 V.

[0145] Therefore, the control unit 61 can determine whether the user has operated the operation member 31 with a large pressing force Fd or a small pressing force Fd, based on the peak voltage V1p of the first voltage V1. For example, when the peak voltage V1p is equal to or greater than a predetermined voltage, the control unit 61 can determine that the pressing force Fd is large, and when the peak voltage V1p is less than the predetermined voltage, the control unit 61 can determine that the pressing force Fd is small.

[0146] 8 and 9, the peak voltage V2p of the second voltage V2 is substantially the same regardless of the pressing force Fd. This is because the elastic force Fe, which is the force that moves the operating member 31 to the other side (-D1) in the first direction D1, is substantially constant regardless of the pressing force Fd, and therefore, when the operating member 31 moves to the other side in the first direction D1, the force with which the swing motion inducing member 32 presses the second extension portion 24c to the other side in the first direction D1 is substantially constant.

[0147] Next, the relationship between the pressing time Td, which is the time from when the user operates the operating member 31 to when the operation is released, and the generated voltage Vg will be described. As described above, FIG. 8 shows the generated voltage Vg when the pressing time Td is short. FIG. 10 shows the generated voltage Vg when the pressing time Td is long, i.e., when the user presses the pressing part 31c for a long time. The horizontal axis of FIG. 10 is time T [msec]. The vertical axis of FIG. 10 is the generated voltage Vg [V]. Note that FIG. 10 shows the generated voltage Vg when the pressing force Fd is large.

[0148] As shown in Fig. 8, in this embodiment, when the pressing time Td is short, the inter-peak time Ti is about 500 [msec], whereas as shown in Fig. 10, when the pressing time Td is long, the inter-peak time Ti is about 850 [msec]. Therefore, the control unit 61 can detect the pressing time Td from the inter-peak time Ti. For example, the control unit 61 may determine that the pressing time Td is short when the inter-peak time Ti is less than a predetermined time, and may determine that the pressing time Td is long when the inter-peak time Ti is equal to or greater than the predetermined time.

[0149] FIG. 11 is a diagram showing an example of use of the control device 10 of this embodiment. For example, when the control unit 61 determines from the information on the power generation voltage Vg that the pressing force Fd when the user operates the operating member 31 is large and the pressing time Td is short, the control unit 61 transmits a first command signal Sc1 to the driven device 81 via the communication unit 71. When the control unit 61 determines from the information on the power generation voltage Vg that the pressing force Fd when the user operates the operating member 31 is small and the pressing time Td is short, the control unit 61 transmits a second command signal Sc2 to the driven device 81. When the control unit 61 determines from the information on the power generation voltage Vg that the pressing time Td when the user operates the operating member 31 is long, the control unit 61 transmits a third command signal Sc3 to the driven device 81. Therefore, the driven device 81 can perform different operations according to the above three types of command signals Sc. That is, the control device 10 can cause the driven device 81 to perform different operations.

[0150] Example 1 of use shown in FIG. 11 shows an example of use in which the driven device 81 is a transmission (not shown) attached to the human-powered vehicle 80. For example, when the driven device 81 receives a first command signal Sc1, it changes the number of gears by one. When the driven device 81 receives a second command signal Sc2, it changes the number of gears by two. When the driven device 81 receives a third command signal Sc3, it continuously changes the number of gears according to the pressing time Td. This allows the user to cause the transmission to perform different operations by appropriately changing the pressing force Fd and pressing time Td when operating the operating member 31.

[0151] Example 2 of use shown in Fig. 11 illustrates a use example in which the driven device 81 is a lamp (not shown) attached to the human-powered vehicle 80. For example, the driven device 81 turns on when it receives a first command signal Sc1. The driven device 81 turns off when it receives a second command signal Sc2. This allows the user to cause the lamp to perform different operations by appropriately changing the pressing force Fd when pressing the operating member 31.

[0152] The control unit 61 may detect that the user has operated the operating member 31 based on the detection signal S1 transmitted from the detection member 40. The control unit 61 can determine whether the voltage to be detected is the first voltage V1 or the second voltage V2 based on the detection signal S1. The control unit 61 can also determine the pressing time Td based on the time for which the detection signal S1 is continuously received.

[0153] According to this embodiment, the power generating device 20 includes a frame 24 formed to include a non-magnetic material, a magnetostrictive member 23 attached to the frame 24, a first yoke portion 21a supporting at least one of the frame 24 and the magnetostrictive member 23 so as to be swingable in the first direction D1, and a second yoke portion 21b connected to the first yoke portion 21a and arranged side by side with the magnetostrictive member 23 in a second direction D2 different from the first direction D1, and a yoke 21 formed to include a magnetic material, and a coil 26 wound around at least one of the yoke 21, the frame 24, and the magnetostrictive member 23. Thus, compared to a case where the yoke 21 is arranged in the first direction D1 in which the magnetostrictive member 23 and the frame 24 swing, it is possible to prevent the power generating device 20 from becoming large in size in the first direction D1, i.e., in the direction in which the magnetostrictive member 23 swings. This prevents the power generating device 20 from becoming large in size. Therefore, the power generating device 20 can be easily incorporated into a narrow space, thereby improving the convenience of the power generating device 20.

[0154] In addition, in this embodiment, since the second extension portion 24c of the frame 24 is formed to include a nonmagnetic material, an increase in the magnetic flux density of the magnetic flux passing through the second extension portion 24c can be suppressed. Therefore, the magnetic flux density of the magnetic flux passing through the magnetostrictive member 23 can be relatively increased, so that the generated voltage Vg can be increased and the power generation efficiency of the power generation device 20 can be improved.

[0155] In this embodiment, the yoke 21 has two functions: a function of supporting the magnetostrictive member 23 and a function of forming a part of the closed magnetic circuit Mc. Therefore, compared to a configuration in which the magnetostrictive member 23 is supported by a member separate from the yoke 21, for example, it is possible to suppress an increase in the number of parts of the power generating device 20. Therefore, it is possible to suppress an increase in the manufacturing cost and manufacturing man-hours of the power generating device 20.

[0156] According to the present embodiment, the first yoke portion 21a is integrally formed with the second yoke portion 21b. Therefore, compared to a case in which the first yoke portion 21a and the second yoke portion 21b are made of different materials, it is possible to prevent an increase in the number of parts of the power generation device 20. Therefore, it is possible to prevent an increase in the manufacturing cost and manufacturing man-hours of the power generation device 20.

[0157] According to this embodiment, the first yoke portion 21a has a connecting portion 21a1 connected to the second yoke portion 21b, and a supporting portion 21a2 disposed away from the connecting portion 21a1 in the second direction D2 and supporting the frame 24 and the magnetostrictive member 23. Therefore, by a simple operation of attaching the frame 24 and the magnetostrictive member 23 to the supporting portion 21a2 of the first yoke portion 21a, the magnetostrictive member 23 and the second yoke portion 21b can be disposed side by side in the second direction D2 via the first yoke portion 21a. Therefore, an increase in the number of manufacturing steps for the power generation device 20 can be suppressed.

[0158] According to this embodiment, the coil 26 is wound around the magnetostrictive member 23. Therefore, a part of the closed magnetic circuit Mc can be formed inside the coil 26, and therefore the generated voltage Vg can be stably generated in the coil 26 by swinging the magnetostrictive member 23 in the first direction D1. Therefore, the generated voltage Vg of the power generation device 20 can be stably increased.

[0159] According to this embodiment, the coil 26 is wound around both the frame 24 and the magnetostrictive member 23. Therefore, in the manufacturing process of the power generating device 20, after the magnetostrictive member 23 is attached to the frame 24, the coil 26 can be formed by winding a coil wire around both the magnetostrictive member 23 and the frame 24. Therefore, the coil 26 surrounding the magnetostrictive member 23 can be easily formed, and an increase in the number of manufacturing steps for the power generating device 20 can be suppressed.

[0160] According to this embodiment, the coil 26 has a first coil portion 26a facing the frame 24 and a second coil portion 26b formed integrally with the first coil portion 26a and facing the magnetostrictive member 23, and the frame 24 and the magnetostrictive member 23 are disposed in an internal space 26c defined by the first coil portion 26a and the second coil portion 26b. Thus, a part of the closed magnetic circuit Mc can be formed in the internal space 26c of the coil 26, and therefore the generated voltage Vg can be stably generated in the coil 26 by swinging the magnetostrictive member 23 in the first direction D1. Therefore, the generated voltage Vg of the power generating device 20 can be stably increased.

[0161] According to this embodiment, the magnetostrictive member 23 has a first extension portion 23a extending in a third direction D3 different from the first direction D1 and the second direction D2, and the frame 24 has a second extension portion 24c extending in the third direction D3, and the first extension portion 23a at least partially overlaps the second extension portion 24c in the first direction D1. Therefore, the first extension portion 23a can be directly attached to the second extension portion 24c while overlapping the first extension portion 23a and the second extension portion 24c in the first direction D1. Therefore, compared to a configuration in which the first extension portion 23a and the second extension portion 24c are indirectly attached via separate members, an increase in the number of parts of the power generation device 20 can be suppressed.

[0162] According to this embodiment, the first extension portion 23a has a first end 23c that contacts the yoke 21 and a second end 23d that is disposed away from the first end 23c in the third direction D3, and the second extension portion 24c has a third end 24e that contacts the yoke 21 and a fourth end 24f that is disposed away from the third end 24e in the third direction D3, and the second end 23d overlaps with the fourth end 24f when viewed from the first direction D1. Therefore, compared to a case where the second end 23d is located on one side (+D3 side) of the fourth end 24f in the third direction D3, it is easier to reduce the dimension of the first extension portion 23a in the third direction D3, and it is easier to prevent the power generation device 20 from becoming large in the third direction D3. This makes it possible to prevent the power generation device from becoming large. Furthermore, the contact area between the first extension portion 23a and the second extension portion 24c can be made larger than when the second end portion 23d is located on the other side (-D3 side) in the third direction D3 relative to the fourth end portion 24f. Therefore, the magnetostrictive member 23 can be attached to the frame 24 more firmly, making it easier to operate the power generating device 20 more stably.

[0163] According to this embodiment, the yoke 21 has a plurality of yoke plates 21d stacked in the first direction D1. Therefore, by adjusting the number of stacked yoke plates 21d, the size of the power generating device 20 in the first direction D1 can be adjusted, and the power generating device 20 can be prevented from becoming large in size in the first direction D1. This prevents the power generating device 20 from becoming large in size. 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.

[0164] Furthermore, generally, plate-shaped magnetic plates are widely distributed and have low manufacturing costs. Therefore, the manufacturing cost of the yoke 21 can be reduced compared to a configuration in which the entire yoke 21 is integrally molded. Therefore, an increase in the manufacturing cost of the power generation device 20 can be suppressed.

[0165] According to this embodiment, the power generating device 20 includes a magnetostrictive member 23, a yoke 21 that supports the magnetostrictive member 23 so as to be swingable in the first direction D1 and is formed to include a magnetic material, the yoke 21 having a plurality of yoke plates 21d stacked in the first direction D1, and a coil 26 that is wound around at least one of the yoke 21 and the magnetostrictive member 23. Since the yoke 21 is thus formed by a plurality of yoke plates 21d, the manufacturing cost of the yoke 21 can be reduced compared to a configuration in which the entire yoke 21 is integrally molded as described above. This makes it possible to suppress an increase in the manufacturing cost of the power generating device 20.

[0166] According to this embodiment, the multiple yoke plates 21d include at least one first yoke plate 21e and at least one second yoke plate 21f, and the magnetostrictive member 23 is located between the at least one first yoke plate 21e and the at least one second yoke plate 21f in the first direction D1. Therefore, when the magnetostrictive member 23 oscillates in the first direction D1, it is easy to suppress the distance between the magnetostrictive member 23 and the yoke 21 from fluctuating. Therefore, when the magnetostrictive member 23 oscillates in the first direction D1, it is easy to suppress the magnetic flux density of the magnetic flux passing through the magnetostrictive member 23 from decreasing, so that the generated voltage Vg can be stabilized.

[0167] According to this embodiment, there is further provided a magnetic flux forming member 27 that forms a magnetic flux passing through the magnetostrictive member 23. Therefore, the magnetic flux density of the magnetic flux passing through the magnetostrictive member 23 can be increased, and the generated voltage Vg of the power generation device 20 can be increased.

[0168] According to the present embodiment, the magnetic flux generating member 27 is disposed between the yoke 21 and the magnetostrictive member 23. This makes it possible to more stably increase the magnetic flux density of the closed magnetic circuit Mc passing through each of the magnetic flux generating member 27, the yoke 21, and the magnetostrictive member 23. This makes it possible to more stably increase the generated voltage Vg of the power generating device 20.

[0169] Furthermore, in this embodiment, the magnetic flux generating member 27 is arranged alongside the magnetostrictive member 23 in the second direction D2, which makes it easy to prevent the distance between the magnetostrictive member 23 and the magnetic flux generating member 27 from fluctuating when the magnetostrictive member 23 oscillates in the first direction D1. Therefore, it is easy to prevent a decrease in the magnetic flux density of the magnetic flux passing through the magnetostrictive member 23 when the magnetostrictive member 23 oscillates in the first direction D1, which makes it possible to stabilize the generated voltage Vg.

[0170] According to this embodiment, the power generating device 20 further includes an operating member 31 configured to be operated by a user, and the magnetostrictive member 23 is configured to swing in the first direction D1 in response to the user's operation of the operating member 31. Thus, the user can generate the generated voltage Vg in the coil 26 simply by pressing down the operating member 31. This improves the convenience of the power generating device 20.

[0171] According to this embodiment, the power generating device 20 further includes a swing inducing member 32 configured to swing the magnetostrictive member 23 in the first direction D1 in response to a user's operation of the operating member 31. Thus, the user can generate the generated voltage Vg in the coil 26 simply by pressing down the operating member 31. This improves the convenience of the power generating device 20.

[0172] According to this embodiment, the swing motion inducing member 32 is configured to move linearly in the first direction D1 in response to the user's operation of the operating member 31. Therefore, as described above, the swing motion inducing member 32 moving linearly in the first direction D1 can press the second extension portion 24c to one side in the first direction D1. This allows the magnetostrictive member 23 and the second extension portion 24c to swing in the first direction D1, so that the generated voltage Vg can be generated in the coil 26. Therefore, the user can generate power from the power generating device 20 by simply pressing the operating member 31 in the first direction D1, which improves the convenience of the power generating device 20.

[0173] According to this embodiment, the control device 10 includes the power generation device 20 and the circuit member 60 electrically connected to the coil 26. Since the circuit member 60 is electrically connected to the coil 26, the circuit member 60 can be driven by using the power generation device 20 as a power source. Therefore, compared to a control device configured to drive the circuit member 60 and including a power source such as a battery, the electromotive force of the power source can be prevented from decreasing with the time of use of the control device 10, so that the operation of replacing the power source or the operation of charging the power source is not required, and the operation of the circuit member 60 can be prevented from stopping when the control device 10 is used. This improves the convenience of the control device 10.

[0174] Furthermore, in this embodiment, as described above, the power generation device 20 can be prevented from becoming large in the first direction D1, which is the swing direction of the magnetostrictive member 23, and therefore the control device 10 can be prevented from becoming large in the first direction D1. This prevents the control device 10 from becoming large. Therefore, the control device 10 can be easily incorporated into a small space, and the convenience of the control device 10 can be further improved.

[0175] According to this embodiment, the circuit member 60 has a control unit 61 configured to generate a command signal Sc based on information related to the generated voltage Vg, i.e., the voltage generated in the coil 26, and a communication unit 71 configured to transmit the command signal Sc to the driven device 81. 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.

[0176] According to this embodiment, the control device 10 further includes a detection member 40 configured to detect the operation of the operating member 31, and the control unit 61 is configured to generate a command signal Sc based on a detection signal S1 transmitted from the detection member 40. Thus, as described above, the control unit 61 can more accurately detect the timing at which the user operates the operating member 31 and the pressing time Td, which is the time from when the user operates the operating member 31 to when the user releases the operation, by using the detection signal S1. Therefore, the control unit 61 can more accurately determine the content of the operation performed by the user, and can more reliably cause the driven device 81 to perform a desired operation. Thus, the convenience of the control device 10 and the driven device 81 can be further improved.

[0177] According to this embodiment, the detection member 40 has a tactile switch 40a configured to be pressed in response to the operation of the operating member 31. Therefore, when the pressing portion 31d presses the tactile switch 40a by the user's operation of the operating member 31, the user can feel a clicking sensation. Therefore, the user can easily recognize that he or she has reliably operated the operating member 31, and the operability of the control device 10 can be improved.

[0178] According to this embodiment, the housing 15 is formed to include a non-magnetic material and further includes the power generating device 20 and the circuit member 60. This can prevent the power generating device 20 and the circuit member 60 from being exposed to the outside of the control device 10. This can prevent the power generating device 20 and the circuit member 60 from coming into contact with conductive members arranged around the control device 10, resulting in a malfunction such as a short circuit. In addition, since it is possible to prevent dust, moisture, and the like from adhering to the power generating device 20 and the circuit member 60, the operation of the power generating device 20 and the circuit member 60 can be stabilized.

[0179] According to this embodiment, the communication unit 71 has a wireless communication unit 71a configured to wirelessly transmit a command signal Sc to the driven device 81. This makes it possible to prevent the wireless signal transmitted from the wireless communication unit 71a to the driven device 81 from being magnetically shielded by the housing 15. This makes it possible to stably transmit the command signal Sc from the communication unit 71 to the driven device 81, thereby more reliably causing the driven device to perform a desired operation. This makes it possible to more suitably improve the convenience of the control device 10 and the driven device 81.

[0180] 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 control device 10 can be reduced, and the convenience of the control device 10 can be improved.

[0181] 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 voltage Vg and a decrease in the power generation efficiency of the power generation device 20.

[0182] Furthermore, in this embodiment, as described above, it is possible to suppress leakage of magnetic flux from the closed magnetic circuit Mc to the housing 15, thereby making it possible to reduce the gaps provided between the housing 15 and the yoke 21 and between the housing 15 and the magnetostrictive member 23. This makes it possible to suppress an increase in size of the housing 15, thereby suppressing an increase in size of the control device 10.

[0183] According to this embodiment, the operating member 31 has a pressing part 31c configured to be pressed by a user, and the coil 26 is configured to generate a first voltage V1 in response to pressing the pressing part 31c, and the first voltage V1 increases in response to the magnitude of the pressing force Fd applied to the pressing part 31c. Therefore, the control unit 61 can detect the pressing force Fd applied to the operating member 31 by the user, for example, from the magnitude of the peak voltage V1p of the first voltage V1, and can transmit a different command signal Sc to the driven device 81 in response to the pressing force Fd. This allows the user to cause the driven device 81 to perform different operations by appropriately changing the pressing force Fd when operating the operating member 31, thereby further improving the convenience of the control device 10 and the driven device 81.

[0184] 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. Therefore, the convenience of the human-powered vehicle 80 can be improved.

[0185] 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.

[0186] <First Modification of First Embodiment> Fig. 12 is a diagram showing a configuration example of the control device 110 of the first modified example of the first embodiment as viewed from the other side (-D1 side) in the first direction D1. Note that Fig. 12 shows the control device 110 with the cover part 17 removed. 12, in a power generating device 120 of this modification, a coil 126 is wound around a yoke 21. In the following description, the same components as those in the above-described first embodiment are denoted by the same reference numerals, and description thereof will be omitted.

[0187] As described above, the coil 126 of this modification is wound around the yoke 21. More specifically, the coil 126 is wound around the second yoke portion 21b. As in the power generating device 20 of the first embodiment described above, the closed magnetic circuit Mc passes through the magnetic flux generating member 27, the magnetostrictive member 23, and the yoke 21. Thus, the closed magnetic circuit Mc passes through the inside of the coil 126. Therefore, when the magnetostrictive member 23 swings in the first direction D1, the magnetic permeability of the magnetostrictive member 23 fluctuates, so that the magnetic flux passing through the second yoke portion 21b fluctuates, and an induced current is generated in the coil 126. That is, the magnetostrictive member 23 swings in the first direction D1, so that a power generation voltage Vg is generated in the coil 126. Although not shown, two coil lead wires 26e and 26f drawn from the coil 126 are connected to the circuit member 60. The other configurations of the coil 126 are the same as those of the coil 26 of the first embodiment described above.

[0188] In this modification, as described above, the coil 126 is wound around the yoke 21, and therefore the position of the coil 126 with respect to the circuit member 60 does not fluctuate. This reduces the load applied to the coil lead wires 26e, 26f connected to the circuit member 60, compared to a configuration in which the coil 126 is wound around the magnetostrictive member 23 and swings in the first direction D1 together with the magnetostrictive member 23. This makes it easier to prevent the coil lead wires 26e, 26f from breaking, and allows the power generating device 120 to operate stably.

[0189] In addition, in this modification, as described above, it is easy to prevent the coil lead wires 26e, 26f from breaking, and therefore it is easy to use a coil wire with a small wire diameter. Therefore, it is easy to miniaturize the coil 126, and therefore it is easy to miniaturize the power generation device 120. Therefore, it is easy to incorporate the power generation device 120 and the control device 110 into a small space, and the convenience of the power generation device 120 and the control device 110 can be improved.

[0190] <Second Modification of First Embodiment> Fig. 13 is a diagram of a configuration example of the control device 210 of this modified example seen from the other side (-D1 side) of the first direction D1. Note that Fig. 13 shows the control device 210 with the cover part 17 removed. Fig. 14 is a cross-sectional view showing the configuration example of the control device 210 of this modified example, taken along the line XIV-XIV in Fig. 13. Fig. 15 is a cross-sectional view of the configuration example of the control device 210 of this modified example when the operating member 231 is operated. In the following description, the same reference numerals are used for components that are the same as those in the first embodiment described above, and description thereof will be omitted.

[0191] As shown in Fig. 13, the second end 223d of the first extension portion 223a of the magnetostrictive member 223 of the power generating device 220 of this modification is located on the other side (-D3 side) in the third direction D3 with respect to the fourth end 24f of the second extension portion 24c of the frame 24. As shown in Fig. 14, the first distance L1 between the second end 223d and the first end 23c is smaller than the second distance L2 between the fourth end 24f and the first end 23c. The other configurations of the magnetostrictive member 223 of this modification are the same as the other configurations of the magnetostrictive member 23 of the above-mentioned first embodiment.

[0192] When operated by a user, the operation unit 230 swings the magnetostrictive member 223 in the first direction D1. The operation unit 230 is disposed on one side (+D3 side) in the third direction D3 from the magnetostrictive member 223. The operation unit 230 has an operation member 231, a rotating member 235, and a shaft support member 237.

[0193] 14, the operating member 231 extends in a first direction D1. The operating member 231 is passed through an insertion hole 17a of the cover portion 17 in the first direction D1. The operating member 231 can be moved in the first direction D1 by a user pressing the operating member 231 to one side (+D1 side) of the first direction D1. The operating member 231 has a main body portion 231a and a pressing portion 231c.

[0194] 13 and 14, the main body 231a has a generally rectangular parallelepiped shape extending in the first direction D1. As shown in Fig. 13, the main body 231a has a generally square shape when viewed from the first direction D1. The main body 231a may have another shape, such as a cylindrical shape extending in the first direction D1.

[0195] As shown in FIG. 13 and FIG. 14, the push-down portion 231c has a generally cylindrical shape protruding from the main body portion 231a to the other side (-D1 side) in the first direction D1. The push-down portion 231c may have other shapes, such as a rectangular column shape. As shown in FIG. 14, when the user is not pushing down the push-down portion 231c, the push-down portion 231c is located outside the housing 15. In the following description, the position of the operation unit 230 when the user is not pushing down the operation member 231 is referred to as a first position. Also, as shown in FIG. 15, the position of the operation unit 230 when the user is pushing down the push-down portion 231c is referred to as a second position.

[0196] The rotation axis A shown in FIG. 13 is a virtual axis extending in a fourth direction D4 that extends in a direction different from the first direction D1. In this modification, the fourth direction D4 is parallel to the second direction D2. Therefore, the rotation axis A extends in a direction parallel to the second direction D2. When viewed from the first direction D1, the rotation axis A passes between the operating member 231 and the magnetostrictive member 223. As shown in FIG. 14, the position of the rotation axis A in the first direction D1 is approximately the same as the position of the second extension portion 24c in the first direction D1. In the following description, the circumferential direction centered on the rotation axis A is simply referred to as the circumferential direction. The circumferential direction is indicated by an arrow θ in FIG. 14 and FIG. 15. The side of the circumferential direction toward which the arrow θ faces (+θ side) is referred to as the "one circumferential side". The opposite side of the circumferential direction toward which the arrow θ faces (-θ side) is referred to as the "other circumferential side". The one circumferential side is the side that progresses clockwise around the rotation axis A when viewed from the other side (-D2 side) of the second direction D2. The other circumferential side is the side that progresses counterclockwise around the rotation axis A when viewed from the other side of the second direction D2.

[0197] As shown in Fig. 13, the shaft support member 237 has a cylindrical shape extending in the second direction D2 centered on the rotation axis A. Both ends of the shaft support member 237 in the second direction D2 are fixed to the side wall portion 16a. As shown in Fig. 14, in the third direction D3, the shaft support member 237 is disposed between the operation member 231 and the second extension portion 24c.

[0198] The rotating member 235 swings the magnetostrictive member 223 in the first direction D1 when the operating member 231 moves in the first direction D1. The rotating member 235 has a shaft portion 235a, a connecting portion 235b, a contact portion 235c, and a swing inducing member 235e.

[0199] The shaft portion 235a has an annular shape extending in the second direction D2 centered on the rotation axis A. A shaft support member 237 passes through the inside of the shaft portion 235a. The shaft portion 235a is supported by the shaft support member 237 so as to be rotatable about the rotation axis A. In this modified example, the shaft portion 235a is a torsion coil spring. Although not shown in the figure, one arm of the shaft portion 235a is fixed to the housing 15. The other arm of the shaft portion 235a is fixed to the connection portion 235b.

[0200] 13, the connection portion 235b has a quadrangular prism shape protruding from the shaft portion 235a. When viewed from the first direction D1, the connection portion 235b is disposed on the other side of the operation member 231 in the second direction D2.

[0201] 13 and 14, the contact portion 235c has a cylindrical shape extending from the connection portion 235b to one side (+D2 side) in the second direction D2. The contact portion 235c is disposed on one side (+D1 side) in the first direction D1 relative to the operating member 231. As shown in FIGS. 14 and 15, in the first position and the second position, the contact portion 235c contacts the operating member 231 in the first direction D1. In addition, the contact portion 235c contacts the operating member 231 when the operating member 231 moves in the first direction D1.

[0202] The swing motion inducing member 235e swings the magnetostrictive member 223 in the first direction D1. As shown in FIG. 14, in the first position, the swing motion inducing member 235e protrudes from the shaft 235a in a direction between one side (+D1 side) of the first direction D1 and the other side (-D3 side) of the third direction D3. As shown in FIG. 15, in the second position, the swing motion inducing member 235e protrudes from the shaft 235a in a direction between the other side (-D1 side) of the first direction D1 and the other side of the third direction D3. The distance between the tip of the swing motion inducing member 235e and the rotation axis A is longer than the distance between the fourth end 24f of the second extension portion 24c and the rotation axis A. Therefore, when the rotating member 235 rotates about the rotation axis A, the swing motion inducing member 235e presses the second extending portion 24c in the first direction D1.

[0203] As shown in FIG. 14, when the user presses down the push-down portion 231c and the operating member 231 moves to one side (+D1 side) in the first direction D1, the contact portion 235c moves to one side in the first direction D1 together with the operating member 231. As a result, the shaft portion 235a and the swing motion inducing member 235e rotate to one circumferential side (+θ side) about the rotation axis A. That is, the swing motion inducing member 235e is configured to rotate about the rotation axis A in response to the operation of the operating member 231 by the user. At this time, the swing motion inducing member 235e presses the second extension portion 24c to the other side (-D1 side) in the first direction D1, so that the second extension portion 24c and the magnetostrictive member 223 are elastically deformed to the other side in the first direction D1. When the operating member 231 moves further to one side in the first direction D1, as shown in Fig. 15, the swing motion inducing member 235e moves further to the other side in the first direction D1 than the second extension portion 24c. At this time, the magnetostrictive member 223 and the second extension portion 24c swing in the first direction D1 due to the restoring force of the second extension portion 24c. In other words, the swing motion inducing member 235e is configured to swing the magnetostrictive member 223 in the first direction D1 in response to the operation of the operating member 231 by the user. When the magnetostrictive member 223 swings in the first direction D1, an induced current is generated in the coil 26, and the power generation device 220 generates power.

[0204] In this modification, in the second position shown in Fig. 15, the rotating member 235 rotates around the rotation axis A toward the other circumferential side (-θ side) due to the elastic force of the other arm (not shown) of the shaft portion 235a. Therefore, after the user releases the operation of the operating member 231, the operating member 231 moves toward the other side in the first direction D1 due to the elastic force Fe toward the other side (-D1 side) of the first direction D1 that is applied to the operating member 231 via the connecting portion 235b and the contact portion 235c. At this time, the swing motion inducing member 235e presses the second extension portion 24c toward one side (+D1 side) of the first direction D1, so that the second extension portion 24c and the magnetostrictive member 223 are elastically deformed toward one side in the first direction D1. When operating member 231 moves further to the other side in first direction D1, as shown in Fig. 14, swing motion inducing member 235e moves further to one side in first direction D1 than second extension portion 24c. At this time, magnetostrictive member 223 and second extension portion 24c swing in first direction D1 due to the restoring force of second extension portion 24c. This generates an induced current in coil 26, and power generation device 220 generates power.

[0205] According to this modification, the first extension portion 223a has a first end 23c in contact with the yoke 21 and a second end 223d disposed away from the first end 23c in the third direction D3, and the second extension portion 24c has a third end 24e in contact with the yoke 21 and a fourth end 24f disposed away from the third end 24e in the third direction D3, and the first distance L1 between the second end 223d and the first end 23c is smaller than the second distance L2 between the fourth end 24f and the first end 23c. Therefore, it is easy to reduce the dimension of the magnetostrictive member 223 in the third direction D3, and therefore it is easy to reduce the volume of the magnetostrictive member 223. Therefore, it is possible to suppress an increase in the material cost of the magnetostrictive member 223. In addition, the magnetic flux density entering the magnetostrictive member 223 from the magnetic flux forming member 27 decreases toward both ends of the magnetic flux forming member 27 in the third direction D3. 13, the second end 223d of the magnetostrictive member 223 in this modification is disposed between the center of the magnetic flux forming member 27 in the third direction D3 and the end on one side (+D3 side) in the third direction D3. This makes it possible to suppress a significant decrease in the magnetic flux entering the magnetostrictive member 223 from the magnetic flux forming member 27, and therefore a significant decrease in the magnetic flux density passing through the closed magnetic circuit Mc. As a result, it is possible to suppress a significant decrease in the generated voltage Vg of the power generation device 20, while suppressing an increase in the manufacturing cost of the power generation device 20.

[0206] According to this modification, the swing motion inducing member 235e is configured to rotate about a rotation axis A extending in a fourth direction D4 different from the first direction D1 in response to the operation of the operating member 231 by the user. Thus, as described above, when the operating member 231 moves in the first direction D1, the swing motion inducing member 235e rotates about the rotation axis A and presses the second extension portion 24c in the first direction D1. Furthermore, since the swing motion inducing member 235e rotates about the rotation axis A, the swing motion inducing member 235e moves in a direction away from the second extension portion 24c in the third direction D3 after elastically deforming the second extension portion 24c and the magnetostrictive member 223 in the first direction D1. Thus, interference between the second extension portion 24c or the magnetostrictive member 223 swinging in the first direction D1 and the swing motion inducing member 235e can be suppressed. Therefore, the second extension portion 24c and the magnetostrictive member 223 can stably swing in the first direction D1, so that the generated voltage Vg of the power generating device 220 can be increased stably.

[0207] <Second embodiment> Fig. 16 is a diagram showing a configuration example of the control device 310 of this embodiment as viewed from the other side (-D1 side) of the first direction D1. Note that Fig. 16 shows the control device 310 with the cover 17 removed. Fig. 17 is a cross-sectional view showing a configuration example of the control device 310 of this embodiment, taken along the line XVII-XVII in Fig. 16. In the following description, the same reference numerals are used for components that are the same as those in the first embodiment described above, and description thereof will be omitted.

[0208] 17, the control device 310 of this embodiment includes a housing 15, a power generation device 320, a detection member 40, and a circuit member 60. The housing 15, the detection member 40, and the circuit member 60 of this embodiment are similar to the housing 15, the detection member 40, and the circuit member 60 of the first embodiment described above, respectively.

[0209] The power generating device 320 is accommodated inside the housing 15. The power generating device 320 is an inverse magnetostrictive type power generating device. The power generating device 320 includes a yoke 321, a magnetostrictive member 23, a frame 324, a coil 26, a magnetic flux generating member 327, a support member 351, a fixing member 329, and an operation unit 30. The magnetostrictive member 23, the coil 26, and the operation unit 30 of this embodiment are similar to the magnetostrictive member 23, the coil 26, and the operation unit 30 of the first embodiment described above.

[0210] The yoke 321 is disposed between the cover portion 17 and the partition plate 18. When viewed from the second direction D2, the yoke 321 has a substantially L-shape. The yoke 321 is formed to include a magnetic material. In this embodiment, the entire yoke 321 is formed of a magnetic material. The yoke 321 has a first yoke portion 321a and a second yoke portion 321b.

[0211] The first yoke portion 321a has a substantially rectangular parallelepiped shape extending linearly in the first direction D1. The first yoke portion 321a is fixed to the side wall portion 16a. Although not shown, an end portion on one side (+D2 side) of the first yoke portion 321a in the second direction D2 is located closer to one side of the second direction D2 than the magnetostrictive member 23 and the frame 324, and an end portion on the other side (-D2 side) of the first yoke portion 321a in the second direction D2 is located closer to the other side of the second direction D2 than the magnetostrictive member 23 and the frame 324. The first yoke portion 321a is disposed on the other side (-D3 side) of the third direction D3 than the coil 26. A yoke hole 321v is provided in the first yoke portion 321a. The yoke hole 321v is a female screw hole recessed from a surface of the first yoke portion 321a facing the other side (-D1 side) of the first direction D1 to one side (+D1 side) of the first direction D1. A plurality of yoke holes 321v may be provided. In this embodiment, two yoke holes 321v are provided in the first yoke portion 321a. Although not shown, one yoke hole 321v is provided on one side of the second direction D2 with respect to the magnetostrictive member 23 and the frame 324, and the other yoke hole 321v is provided on the other side of the second direction D2 with respect to the magnetostrictive member 23 and the frame 324. The first yoke portion 321a supports the frame 324 and the magnetostrictive member 23 from one side of the first direction D1. As a result, the first yoke portion 321a supports the frame 324 and the magnetostrictive member 23 so as to be swingable in the first direction D1.

[0212] The second yoke portion 321b has a substantially rectangular parallelepiped shape extending in the third direction D3. The second yoke portion 321b is fixed to the partition plate 18. The second yoke portion 321b extends in the third direction D3 from a portion of the first yoke portion 321a on one side (+D1 side) in the first direction D1. The second yoke portion 321b is connected to the first yoke portion 321a. As a result, the first yoke portion 321a is formed integrally with the second yoke portion 321b. The first yoke portion 321a and the second yoke portion 321b form an integral single member. The second yoke portion 321b is disposed on one side (+D1 side) in the first direction D1 with respect to the magnetostrictive member 23 and the frame 324. The second yoke portion 321b faces the magnetostrictive member 23 and the coil 26 with a gap in the first direction D1. As shown in Fig. 16, the second yoke portion 321b is arranged side by side with the magnetostrictive member 23 in the first direction D1. In the present invention, "arranged side by side in the first direction D1" does not only mean that they are arranged side by side in the strict first direction D1, but also means that they are arranged side by side in a direction inclined from the first direction D1 to the second direction D2. In other words, "arranged side by side in the first direction D1" means that they are arranged other than overlapping in the second direction D2. Other configurations of the yoke 321 of this embodiment are similar to those of the yoke 21 of the first embodiment described above.

[0213] The support member 351 has a substantially rectangular parallelepiped shape extending in the second direction D2. An end portion of the support member 351 on one side (+D2 side) in the second direction D2 is located on one side of the magnetostrictive member 23 and the frame 324 in the second direction D2, and an end portion of the support member 351 on the other side (-D2 side) in the second direction D2 is located on the other side of the magnetostrictive member 23 and the frame 324 in the second direction D2. The support member 351 is disposed on the other side (-D3 side) in the third direction D3 of the coil 26. As shown in FIG. 17, the support member 351 is disposed on the other side (-D1 side) in the first direction D1 of the frame 324 and the magnetostrictive member 23. The support member 351 is disposed on the opposite side of the first yoke portion 321a with respect to the frame 324 and the magnetostrictive member 23 in the first direction D1. When viewed from the first direction D1, the support member 351 overlaps with the frame 324, the magnetostrictive member 23, and the first yoke portion 321a. The support member 351 supports the frame 324 and the magnetostrictive member 23 from the other side (-D1 side) of the first direction D1. As a result, the support member 351 supports the frame 324 and the magnetostrictive member 23 in the first direction D1 together with the first yoke portion 321a.

[0214] In this embodiment, the support member 351 is formed so as to include a non-magnetic material. In other words, the support member 351 is at least partially formed of a non-magnetic material. In this embodiment, the support member 351 is formed of a non-magnetic material. In this embodiment, the support member 351 is entirely formed of a non-magnetic material. For example, the support member 351 is formed of stainless steel. Note that the support member 351 may include a magnetic material. In this case, it is sufficient that the support member 351 has non-magnetic properties as a whole.

[0215] The support member 351 is provided with a hole 351a. The hole 351a is a hole penetrating the support member 351 in the first direction D1. In this embodiment, the support member 351 is provided with two holes 351a. Although not shown, each hole 351a overlaps with a different yoke hole 321v in the first direction D1. The fixing member 329 is a male screw extending in the first direction D1. When the fixing member 329 is passed through each hole 351a and screwed into each yoke hole 321v, the support member 351 is fixed to the first yoke portion 321a. The fixing member 329 fixes the support member 351 to the first yoke portion 321a.

[0216] The frame 324 has a plate shape that expands in a direction perpendicular to the first direction D1. The frame 324 extends in the third direction D3. As shown in FIG. 16, in this embodiment, the frame 324 is substantially rectangular with a long side extending in the third direction D3. As shown in FIG. 17, in the first direction D1, the frame 324 is disposed between the support member 351 and the first yoke portion 321a. The frame 324 is formed so as to include a nonmagnetic material. The frame 324 has a first frame end 324h and a second frame end 324i. The first frame end 324h is an end of the frame 324 on the other side (-D3 side) in the third direction D3. The second frame end 324i is an end of the frame 324 on one side (+D3 side) in the third direction D3. The second frame end 324i is disposed farther away from the support member 351 in the third direction D3 than the first frame end 324h. Other configurations of the frame 324 are similar to those of the frame 24 of the above-described first embodiment.

[0217] The magnetostrictive member 23 has a plate shape extending in the third direction D3. The magnetostrictive member 23 is attached to the frame 324. In this embodiment, the magnetostrictive member 23 is attached to a surface of the frame 324 facing the other side (-D1 side) in the first direction D1. As described above, the magnetostrictive member 23 has the first end 23c and the second end 23d. The second end 23d is disposed farther away from the support member 351 in the third direction D3 than the first end 23c. When viewed from the first direction D1, the support member 351 overlaps with each of the first frame end 324h and the first end 23c.

[0218] As in the first embodiment described above, the coil 26 in this embodiment is wound around both the frame 324 and the magnetostrictive member 23. That is, the coil 26 is wound around the magnetostrictive member 23. The coil 26 is wound around at least one of the yoke 321, the frame 324, and the magnetostrictive member 23. The coil 26 may be wound around both the magnetostrictive member 23 and the yoke 321. The coil 26 has a first coil portion 26a facing the frame 324, and a second coil portion 26b formed integrally with the first coil portion 26a and facing the magnetostrictive member 23. The frame 324 and the magnetostrictive member 23 are disposed in an internal space 26c defined by the first coil portion 26a and the second coil portion 26b.

[0219] The magnetic flux forming member 327 is fixed to a surface of the second yoke portion 321b facing the other side (-D1 side) in the first direction D1. The magnetic flux forming member 327 is arranged facing the frame 324 with a gap in the first direction D1. In the first direction D1, the magnetic flux forming member 327 is arranged between the yoke 321 and the magnetostrictive member 23. The magnetic flux forming member 327 is arranged on one side (+D1 side) in the first direction D1 with respect to the frame 324 and the magnetostrictive member 23. The magnetic flux forming member 327 is arranged in line with the magnetostrictive member 23 and the second yoke portion 321b in the first direction D1. The magnetic flux forming member 327 is arranged on one side (+D3 side) in the third direction D3 with respect to the coil 26. The magnetic flux forming member 327 has a pair of magnetic poles. An N pole is formed on one surface of the magnetic flux forming member 327 facing the first direction D1. An S pole is formed on the other surface of the magnetic flux forming member 327 facing the first direction D1. The magnetic flux forming member 327 forms a magnetic flux passing through the magnetostrictive member 23. As a result, a closed magnetic circuit Mc passing through the magnetic flux forming member 327, the magnetostrictive member 23, and the yoke 321 is formed. As in the first embodiment described above, when the magnetostrictive member 23 oscillates in the first direction D1, the magnetostrictive member 23 is mechanically distorted, and the magnetic permeability of the magnetostrictive member 23 varies. As a result, the magnetic flux passing through the closed magnetic circuit Mc, i.e., the magnetic flux passing through the internal space 26c of the coil 26 varies, so that the coil 26 can generate a power generation voltage Vg. Other configurations of the magnetic flux forming member 327 are similar to those of the magnetic flux forming member 27 of the first embodiment described above.

[0220] According to this embodiment, the power generating device 320 includes a frame 324 formed to include a nonmagnetic material, a magnetostrictive member 23 attached to the frame 324, a yoke 321 formed to include a magnetic material, a first yoke portion 321a supporting the frame 324 and the magnetostrictive member 23 so as to be swingable in the first direction D1, a second yoke portion 321b connected to the first yoke portion 321a and arranged side by side with the magnetostrictive member 23 in the first direction D1, a support member 351 arranged on the opposite side of the first yoke portion 321a with respect to the frame 324 and the magnetostrictive member 23 in the first direction D1, and supporting the frame 324 and the magnetostrictive member 23 together with the first yoke portion 321a, and a coil 26 wound around at least one of the yoke 321, the frame 324, and the magnetostrictive member 23. When viewed from the first direction D1, the support member 351 overlaps with the frame 324, the magnetostrictive member 23, and the first yoke portion 321a. Therefore, compared to a case where the second yoke portion 321b is arranged next to the magnetostrictive member 23 in the second direction D2, it is possible to prevent the power generating device 320 from becoming large in size in the second direction D2. This makes it possible to prevent the power generating device 320 from becoming large in size. Therefore, the power generating device 320 can be easily incorporated into a narrow space, and the convenience of the power generating device 320 can be improved.

[0221] Furthermore, in this embodiment, the frame 324 and the magnetostrictive member 23 can be supported from both sides in the first direction D1 by the first yoke portion 321a and the support member 351. As a result, the frame 324 and the magnetostrictive member 23 are stably supported in the first direction D1, and therefore the frame 324 and the magnetostrictive member 23 can be stably oscillated in the first direction D1. Therefore, the amount of fluctuation of the magnetic flux passing through the closed magnetic circuit Mc can be stably increased, and the generated voltage Vg of the power generation device 320 can be increased.

[0222] According to this embodiment, the first yoke portion 321a extends linearly in the first direction D1. This increases the rigidity of the first yoke portion 321a in the first direction D1. This allows the frame 324 and the magnetostrictive member 23, which oscillate in the first direction D1, to be supported more stably in the first direction D1 by the first yoke portion 321a. This allows each of the frame 324 and the magnetostrictive member 23 to oscillate more stably in the first direction D1. This allows the amount of fluctuation of the magnetic flux passing through the closed magnetic circuit Mc to be increased more stably, thereby more suitably increasing the generated voltage Vg.

[0223] According to this embodiment, the support member 351 is formed to include a non-magnetic material. This makes it possible to suppress leakage of magnetic flux from the closed magnetic circuit Mc formed among the yoke 321, the magnetic flux generating member 327, and the magnetostrictive member 23 to the support member 351. This makes it possible to suppress leakage of magnetic flux from the closed magnetic circuit Mc to the housing 15 via the support member 351. This makes it possible to suppress a decrease in the magnetic flux density of the magnetic flux passing through the closed magnetic circuit Mc, thereby suppressing a decrease in the power generation voltage Vg of the power generation device 320 and a decrease in the power generation efficiency of the power generation device 320.

[0224] According to this embodiment, the frame 324 and the magnetostrictive member 23 each extend in a third direction D3 different from the first direction D1, the frame 324 has a first frame end 324h and a second frame end 324i that is positioned farther away from the support member 351 in the third direction D3 than the first frame end 324h, the magnetostrictive member 23 has a first end 23c and a second end 23d that is positioned farther away from the support member 351 in the third direction D3 than the first end 23c, and when viewed from the first direction D1, the support member 351 overlaps with each of the first frame end 324h and the first end 23c. Therefore, compared to a case where the first frame end 324h of the frame 324 and the first end 23c of the magnetostrictive member 23 are disposed on the other side (-D3 side) of the third direction D3 from the support member 351, the dimensions in the third direction D3 of the portions of the frame 324 and the magnetostrictive member 23 disposed on one side (+D3 side) of the third direction D3 from the support member 351 can be easily increased. This makes it easier to increase the amplitude in the first direction D1 when the frame 324 and the magnetostrictive member 23 each oscillate in the first direction D1, and therefore makes it easier to increase the mechanical distortion of the magnetostrictive member 23. Therefore, it is easier to increase the amount of fluctuation of the magnetic flux passing through the closed magnetic circuit Mc, and therefore the generated voltage Vg of the power generation device 320 can be more suitably increased.

[0225] According to this embodiment, the power generating device 320 further includes a fixing member 329 that fixes the support member 351 to the first yoke portion 321a. Therefore, the frame 324 and the magnetostrictive member 23 can be supported more stably in the first direction D1 by the support member 351 and the first yoke portion 321a, and therefore the frame 324 and the magnetostrictive member 23 can be oscillated more stably in the first direction D1. Therefore, the amount of fluctuation of the magnetic flux passing through the closed magnetic circuit Mc can be increased more stably, and the generated voltage Vg of the power generating device 320 can be increased more suitably.

[0226] According to the present embodiment, first yoke portion 321a is formed integrally with second yoke portion 321b. Therefore, compared to a case in which first yoke portion 321a and second yoke portion 321b are made of different materials, it is possible to prevent an increase in the number of parts of power generation device 320. Therefore, it is possible to prevent an increase in the manufacturing cost and manufacturing man-hours of power generation device 320.

[0227] According to this embodiment, the coil 26 is wound around the magnetostrictive member 23. Therefore, a part of the closed magnetic circuit Mc can be formed inside the coil 26, and therefore the generated voltage Vg can be stably generated in the coil 26 by swinging the magnetostrictive member 23 in the first direction D1. Therefore, the generated voltage Vg of the power generation device 320 can be stably increased.

[0228] According to this embodiment, the coil 26 is wound around both the frame 324 and the magnetostrictive member 23. Therefore, in the manufacturing process of the power generating device 320, after the magnetostrictive member 23 is attached to the frame 324, the coil 26 can be formed by winding a coil wire around both the magnetostrictive member 23 and the frame 324. Therefore, the coil 26 surrounding the magnetostrictive member 23 can be easily formed, and an increase in the number of manufacturing steps for the power generating device 320 can be suppressed.

[0229] According to this embodiment, the coil 26 has a first coil portion 26a facing the frame 324 and a second coil portion 26b formed integrally with the first coil portion 26a and facing the magnetostrictive member 23, and the frame 324 and the magnetostrictive member 23 are disposed in an internal space 26c defined by the first coil portion 26a and the second coil portion 26b. Thus, a part of the closed magnetic circuit Mc can be formed in the internal space 26c of the coil 26, and therefore the generated voltage Vg can be stably generated in the coil 26 by swinging the magnetostrictive member 23 in the first direction D1. Therefore, the generated voltage Vg of the power generating device 320 can be stably increased.

[0230] The power generating device 320 further includes a magnetic flux forming member 327 that forms a magnetic flux passing through the magnetostrictive member 23. Therefore, the magnetic flux density of the magnetic flux passing through the magnetostrictive member 23 can be increased, and the generated voltage Vg of the power generating device 320 can be increased.

[0231] The magnetic flux forming member 327 is disposed between the yoke 321 and the magnetostrictive member 23. This makes it possible to more stably increase the magnetic flux density of the closed magnetic circuit Mc passing through each of the magnetic flux forming member 327, the yoke 321, and the magnetostrictive member 23. This makes it possible to more stably increase the generated voltage Vg of the power generating device 320.

[0232] In this embodiment, the magnetostrictive member 23 is attached to a surface facing the other side (-D1 side) in the first direction D1 of the frame 324. As a result, when the magnetostrictive member 23 swings to one side (+D1 side) in the first direction D1, the magnetostrictive member 23 extends, and the magnetic flux passing through the magnetostrictive member 23 increases. Therefore, compared to the case where the magnetostrictive member 23 is attached to a surface facing the other side in the first direction D1 of the frame 324, the amount of fluctuation in the magnetic flux passing through the closed magnetic circuit Mc can be more suitably increased, and the generated voltage Vg of the power generation device 320 can be more suitably increased.

[0233] <Modification of the second embodiment> 18 is a cross-sectional view showing a configuration example of a control device 410 of this modified example. In the following description, the same components as those in the above-described second embodiment are given the same reference numerals, and the description thereof will be omitted.

[0234] In this modification, the magnetostrictive member 23 is attached to a surface of the frame 324 facing one side (+D1 side) in the first direction D1. The second yoke portion 321b is arranged side by side with the magnetostrictive member 23 in the first direction D1. When viewed from the first direction D1, the support member 351 overlaps with the frame 324, the magnetostrictive member 23, and the first yoke portion 321a. The frame 324 and the magnetostrictive member 23 are supported from both sides in the first direction D1 by the first yoke portion 321a and the support member 351. The coil 26 is wound around both the frame 324 and the magnetostrictive member 23. In this modification, as in the second embodiment described above, when the magnetostrictive member 23 oscillates in the first direction D1, the magnetostrictive member 23 is mechanically distorted, and the magnetic permeability of the magnetostrictive member 23 varies. As a result, the magnetic flux passing through the closed magnetic circuit Mc, that is, the magnetic flux passing through the internal space 26c of the coil 26, fluctuates, so that the coil 26 can generate a generated voltage Vg.

[0235] According to this modification, the magnetostrictive member 23 attached to the frame 324, the yoke 321 having the second yoke portion 321b arranged in line with the magnetostrictive member 23 in the first direction D1, and the support member 351 arranged on the opposite side of the first yoke portion 321a with respect to the frame 324 and the magnetostrictive member 23 in the first direction D1, and supporting the frame 324 and the magnetostrictive member 23 together with the first yoke portion 321a are provided. When viewed from the first direction D1, the support member 351 overlaps the frame 324, the magnetostrictive member 23, and the first yoke portion 321a. Therefore, compared to the case where the second yoke portion 321b is arranged in line with the magnetostrictive member 23 in the second direction D2, the power generating device 420 can be prevented from becoming large in size in the second direction D2. This can prevent the power generating device 420 from becoming large in size. Therefore, the power generating device 420 can be easily incorporated into a narrow space, and the convenience of the power generating device 420 can be improved.

[0236] Furthermore, in this modification, the frame 324 and the magnetostrictive member 23 can be supported from both sides in the first direction D1 by the first yoke portion 321a and the support member 351. As a result, the frame 324 and the magnetostrictive member 23 are stably supported in the first direction D1, and therefore the frame 324 and the magnetostrictive member 23 can be stably oscillated in the first direction D1. Therefore, the amount of fluctuation of the magnetic flux passing through the closed magnetic circuit Mc can be stably increased, and the generated voltage Vg of the power generation device 420 can be increased.

[0237] In this modification, as described above, the magnetostrictive member 23 is attached to a surface of the frame 324 facing one side (+D1 side) in the first direction D1. Therefore, in a first motion in which the operating member 31 moves from the first position to the second position, the swing motion inducing member 32 presses the frame 324 toward one side in the first direction D1, causing the frame 324 and the magnetostrictive member 23 to elastically deform toward one side in the first direction D1. This makes it possible to prevent the swing motion inducing member 32 and the magnetostrictive member 23 from coming into contact with each other in the first motion, thereby preventing the magnetostrictive member 23 from wearing out. This makes it possible to improve the durability of the power generating device 420.

[0238] 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.

[0239] The control device does not have to include a detection member. In this case, the control unit can detect the timing when the user operates the operating member and the duration for which the operating member is pressed by detecting the peak voltage of the generated voltage or the like.

[0240] 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 by using a magnetic flux generated by magnetizing the magnetostrictive member due to mechanical distortion of the magnetostrictive member.

[0241] The control device may not 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 a weight to one end of at least one of the second extension portion and the magnetostrictive member on one side in the second direction, the magnetostrictive member can be swung in the first direction more easily.

[0242] 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 third 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.

[0243] 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. [Explanation of symbols]

[0244] 10,110,210,310,410 Control device, 15 Housing, 20,120,220,320,420 Power generating device, 21,321 Yoke, 21a,321a First yoke portion, 21a1 Connection portion, 21a2 Support portion, 21b,321b Second yoke portion, 21d Yoke plate, 21e First yoke plate, 21f Second yoke plate, 23,223 Magnetostrictive member, 23a,223a First extension portion, 23c First end portion, 23d,223d Second end portion, 24,324 Frame, 24c Second extension portion, 24e Third end portion, 24f Fourth end portion, 26,126 Coil, 26a First coil portion, 26b Second coil portion, 26c Internal space, 27,327 Magnetic flux forming member, 31, 231 operating member, 31c, 231c pressing portion, 32, 235e swing inducing member, 40 detecting member, 40a tact switch, 60 circuit member, 61 control unit, 71 communication unit, 71a wireless communication unit, 80 human-powered vehicle, 81 driven device, 324h first frame end, 324i second frame end, 329 fixing member, 351 support member, D1 first direction, D2 second direction, D3 third direction, D4 fourth direction, Fd pressing force, A rotation axis, S1 detection signal, Sc command signal, V1 first voltage, V2 second voltage

Claims

1. a frame formed to include a non-magnetic material; A magnetostrictive member attached to the frame; a yoke including a first yoke portion that supports at least one of the frame and the magnetostrictive member so as to be swingable in a first direction, and a second yoke portion that is connected to the first yoke portion and is arranged alongside the magnetostrictive member in a second direction different from the first direction; a coil wound around at least one of the yoke, the frame, and the magnetostrictive member.

2. The power generating device according to claim 1 , wherein the first yoke portion is integrally formed with the second yoke portion.

3. 2. The power generating device according to claim 1, wherein the first yoke portion has a connecting portion connected to the second yoke portion, and a support portion arranged away from the connecting portion in the second direction and supporting at least one of the frame and the magnetostrictive member.

4. The power generating device according to claim 1 , wherein the coil is wound around the magnetostrictive member.

5. The power generating device according to claim 4 , wherein the coil is wound around both the frame and the magnetostrictive member.

6. the coil has a first coil portion facing the frame, and a second coil portion formed integrally with the first coil portion and facing the magnetostrictive member, The power generating device according to claim 5 , wherein the frame and the magnetostrictive member are disposed in an internal space defined by the first coil portion and the second coil portion.

7. the magnetostrictive member has a first extension portion extending in a third direction different from the first direction and the second direction, The frame has a second extension portion extending in the third direction, The power generating device according to claim 1 , wherein the first extension portion at least partially overlaps with the second extension portion in the first direction.

8. the first extension portion has a first end portion in contact with the yoke and a second end portion spaced apart from the first end portion in the third direction, the second extension portion has a third end portion in contact with the yoke and a fourth end portion disposed away from the third end portion in the third direction, The power generating device according to claim 7 , wherein the second end portion overlaps with the fourth end portion when viewed from the first direction.

9. the first extension portion has a first end portion in contact with the yoke and a second end portion spaced apart from the first end portion in the third direction, the second extension portion has a third end portion in contact with the yoke and a fourth end portion disposed away from the third end portion in the third direction, The power generating device according to claim 7 , wherein a first distance between the second end and the first end is less than a second distance between the fourth end and the first end.

10. The power generating device according to claim 1 , wherein the yoke has a plurality of yoke plates stacked in the first direction.

11. A magnetostrictive member; a yoke that supports the magnetostrictive member so as to be swingable in a first direction and is formed to include a magnetic material, the yoke having a plurality of yoke plates that are stacked in the first direction; a coil wound around at least one of the yoke and the magnetostrictive member.

12. The plurality of yoke plates include at least one first yoke plate and at least one second yoke plate, The power generating device according to claim 11 , wherein the magnetostrictive member is located between at least one of the first yoke plates and at least one of the second yoke plates in the first direction.

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

14. The power generating device according to claim 13 , wherein the magnetic flux generating member is disposed between the yoke and the magnetostrictive member.

15. a frame formed to include a non-magnetic material; A magnetostrictive member attached to the frame; a yoke including a first yoke portion that supports the frame and the magnetostrictive member so as to be swingable in a first direction, and a second yoke portion that is connected to the first yoke portion and is arranged alongside the magnetostrictive member in the first direction, the yoke being formed to include a magnetic material; a support member that is disposed on an opposite side of the frame and the magnetostrictive member from the first yoke portion in the first direction, and supports the frame and the magnetostrictive member together with the first yoke portion; a coil wound around at least one of the yoke, the frame, and the magnetostrictive member; A power generating apparatus, wherein when viewed from the first direction, the support member overlaps with the frame, the magnetostrictive member, and the first yoke portion.

16. The power generating device according to claim 15 , wherein the first yoke portion extends linearly in the first direction.

17. The generator of claim 15 , wherein the support member is formed to include a non-magnetic material.

18. each of the frame and the magnetostrictive member extends in a third direction different from the first direction; the frame has a first frame end and a second frame end disposed farther away from the support member in the third direction than the first frame end, the magnetostrictive member has a first end and a second end disposed farther away from the support member in the third direction than the first end, The power generating apparatus according to claim 15 , wherein the support member overlaps with each of the first frame end and the first end when viewed from the first direction.

19. The power generating device according to claim 15 , further comprising a fixing member that fixes the support member to the first yoke portion.

20. The power generating device according to claim 15 , wherein the first yoke portion is integrally formed with the second yoke portion.

21. The power generating device according to claim 15 , wherein the coil is wound around the magnetostrictive member.

22. The power generating apparatus of claim 21 , wherein the coil is wound around both the frame and the magnetostrictive member.

23. the coil has a first coil portion facing the frame, and a second coil portion formed integrally with the first coil portion and facing the magnetostrictive member, The power generating apparatus according to claim 22 , wherein the frame and the magnetostrictive member are disposed in an interior space defined by the first coil portion and the second coil portion.

24. The power generating device according to claim 15 , further comprising a magnetic flux forming member that forms a magnetic flux passing through the magnetostrictive member.

25. The power generating device according to claim 24 , wherein the magnetic flux generating member is disposed between the yoke and the magnetostrictive member.

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

27. The power generating apparatus according to claim 26 , further comprising a swing inducing member configured to swing the magnetostrictive member in the first direction in response to operation of the operating member by a user.

28. The power generating apparatus according to claim 27 , wherein the swing motion inducing member is configured to move linearly in the first direction in response to a user's operation of the operating member.

29. 28. The power generating apparatus according to claim 27, wherein the swing motion inducing member is configured to rotate about a rotation axis extending in a fourth direction different from the first direction in response to a user's operation of the operating member.

30. A control device for controlling an operation of a driven device, The power generating device according to claim 26; A control device comprising: a circuit member electrically connected to the coil.

31. The control device of claim 30 , wherein the circuit member includes a controller configured to generate a command signal based on information about a voltage generated in the coil, and a communication unit configured to transmit the command signal to the driven device.

32. A detection member configured to detect an operation of the operation member, The control device according to claim 31 , wherein the control unit is configured to generate the command signal based on a detection signal transmitted from the detection member.

33. The control device according to claim 32 , wherein the detection member has a tactile switch configured to be pressed in response to operation of the operating member.

34. 32. The control system of claim 31, further comprising a housing formed to include a non-magnetic material and containing the generator and the circuit members therein.

35. The control device according to claim 31 , wherein the communication unit comprises a wireless communication unit configured to wirelessly transmit the command signal to the driven device.

36. The operation member has a depression portion configured to be depressed by a user, The coil is configured to generate a first voltage in response to a press on the press portion, The control device according to claim 30 , wherein the first voltage increases in accordance with the magnitude of a pressing force applied to the pressing portion.

37. The control device and the driven device are configured to be mounted on a human-powered vehicle; The control system of claim 30 , wherein the driven device comprises an actuator.

38. The control device of claim 30, wherein the driven device includes at least one of a transmission, an adjustable seat post, a suspension, a drive unit, and a lamp attached to a human-powered vehicle.

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