Swing power generation device

Abstract

To provide a wave power generation device and a wave power generation method that can utilize pendulum movement of a second support body for power generation in both directions, to efficiently generate power.SOLUTION: A swing power generation device comprises: a rotation shaft 20 provided in a horizontal direction; a second support body 30 that hangs down from the rotation shaft, and moves in a pendulum movement; a power generation weight 33 that is supported by a spring 32 on the second support body, and reciprocates along the second support body due to a centrifugal force caused by the pendulum motion of the second support body; and a power generation mechanism 40 that generates power by the reciprocating motion of the power generation weight.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a swing power generating device that generates power by utilizing natural energy, and a power storage method that uses the swing power generating device. [Background technology]

[0002] 2. Description of the Related Art Conventionally, for the purpose of generating electricity using ocean waves, Japanese Utility Model Application Laid-Open Publication No. 60-159886 discloses a wave-driven power generator in which a pendulum is provided inside a sphere and the vibration of the pendulum is transmitted to a flywheel via a ratchet to generate electricity. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Utility Model Application Publication No. 60-159886 Summary of the Invention [Problem to be solved by the invention]

[0004] However, the generator disclosed in Patent Document 1 uses a ratchet and can only convert the pendulum motion in one direction into electric power.

[0005] The present invention has been made in consideration of the above points, and has an object to provide an oscillation power generation device and an electricity storage method that utilize the pendulum motion (hereinafter, pendulum motion may be referred to as "vibration") of the second support for power generation in both directions, and generate electricity efficiently. Another object of the present invention is to provide an oscillation power generation device and an electricity storage method that make it easier to continue the vibration of the second support by not placing a load on the rotating shaft that supports the second support, thereby reducing fluctuations in the amount of power generated. [Means for solving the problem]

[0006] The oscillation power generation device of the present invention comprises: A rotation shaft provided horizontally on the first support; A second support suspended from the pivot shaft and performing a pendulum motion; a power generating weight supported by a spring on the second support and reciprocating along the second support by centrifugal force caused by a pendulum motion of the second support; a power generating mechanism that generates power by the reciprocating motion of the power generating weight; The present invention is characterized by comprising:

[0007] According to the oscillation power generating device of the present invention, the centrifugal force caused by the vibration of the second support generates power by the power generating weight reciprocating along the second support. Therefore, power can be generated in both directions of the vibration. Also, there is no load on the rotating shaft supporting the second support. Therefore, the vibration of the second support is easily started and continued, and the change in the amount of power generated can be reduced.

[0008] A preferred example of the oscillation power generating device of the present invention is In order for the power generation mechanism to convert the reciprocating motion of the power generation weight into rotational motion, two pinion gears provided on either the second support or the power-generating weight, arranged coaxially and rotating in opposite directions; two rack gears provided on the other of the second support or the power generating weight and corresponding to the pinion gears; a one-way clutch for extracting rotational motion in one direction from the two pinion gears; a generator connected to an output shaft of the one-way clutch; Equipped with.

[0009] According to a preferred example of the oscillation power generating device of the present invention, it is possible to generate power in both directions of the reciprocating motion of the power generating weight, and thus it is possible to provide a highly efficient oscillation power generating device.

[0010] A preferred example of the oscillation power generating device of the present invention is The first support is disposed so that its axis is in the vertical direction, A direction adjustment bearing is provided on the first support to allow the first support to rotate about its axis.

[0011] According to a preferred embodiment of the oscillation power generating device of the present invention, the first support is made rotatable by the direction adjustment bearing, and the direction of the rotation axis provided on the first support is also changed. This allows the rotation axis to be perpendicular to the direction of the natural energy, and the second support can be vibrated efficiently.

[0012] A preferred example of the oscillation power generating device of the present invention is A center of gravity adjustment mechanism is provided to enable adjustment of the height of the rotation shaft relative to the first support.

[0013] According to a preferred embodiment of the oscillation power generation device of the present invention, the center of gravity of the entire oscillation power generation device can be changed by the center of gravity adjustment mechanism. As a result, when the oscillation power generation device of the present invention is mounted on a float that floats on water, for example, the center of gravity can be optimally positioned to accommodate environmental changes due to factors such as the size of waves.

[0014] A preferred example of the oscillation power generating device of the present invention is The device further includes a vibration period adjustment mechanism that enables the height of the spring and the power generating weight to be adjusted relative to the second support.

[0015] According to a preferred embodiment of the oscillation power generation device of the present invention, the oscillation period of the second support can be adjusted by the oscillation period adjustment mechanism, which allows the device to adapt to changes in the surrounding environment and generate power more efficiently.

[0016] A preferred example of the oscillation power generating device of the present invention is A vibration suppression mechanism is provided that abuts against the power-generating weight to limit the pendulum motion of the second support.

[0017] According to a preferred embodiment of the oscillation power generating apparatus of the present invention, the vibration of the second support can be restricted by the vibration suppression mechanism, so that damage to the oscillation power generating apparatus in bad weather or the like can be prevented.

[0018] A preferred example of the oscillation power generating device of the present invention is The vibration suppression mechanism includes a brake wheel that rotates in contact with the generator weight, and an auxiliary generator that generates electricity through the rotation of the brake wheel.

[0019] According to a preferred embodiment of the oscillation power generating device of the present invention, power generation is possible using the vibration suppression mechanism, so that damage to the device can be prevented and power generation can be continued even in bad weather.

[0020] A preferred example of the oscillation power generating device of the present invention is The fan includes a wind direction adjustment shaft that is installed on the rotating shaft and can rotate according to the direction of the wind, and a wind receiving section that includes a wind receiving plate that is attached to the wind direction adjustment shaft and receives the wind.

[0021] According to a preferred embodiment of the oscillation power generating device of the present invention, power can also be generated by wind, making it possible to utilize natural energy more efficiently.

[0022] The electricity storage method of the present invention includes the steps of: A method for storing electricity using the oscillation power generating device according to claim 1 or 2, comprising the steps of: When surplus power is generated, the actuator rotates the rotation shaft to lift up the second support; When power is supplied to the outside, the actuator is separated from the rotating shaft, and power is generated by the pendulum motion of the second support.

[0023] According to the electricity storage method of the present invention, electricity can be stored easily while maintaining the characteristics of the oscillation power generation device described above. Effect of the Invention

[0024] As described above, according to the oscillation power generation device and the electricity storage method of the present invention, the vibration of the second support is utilized for power generation in both directions, and it is possible to generate electricity efficiently. Another effect is that it is possible to provide an oscillation power generation device and an electricity storage method that can reduce fluctuations in the amount of generated electricity by making it easier to continue the vibration of the second support by not providing a load to the rotation shaft that supports the second support. [Brief description of the drawings]

[0025] [Figure 1] 1 is a front cross-sectional view of a swing power generating device according to an embodiment of the present invention. [Diagram 2] FIG. 2 is a side cross-sectional view of the oscillation power generating device. [Diagram 3] 13 is a diagram illustrating a state in which the second support is vibrating. FIG. [Figure 4] 5A to 5C are diagrams illustrating the vibration of the second support and the reciprocating motion of the power-generating weight. [Diagram 5] FIG. 2 is an enlarged cross-sectional view showing a schematic view of the AA line in FIG. [Figure 6] FIG. 2 is a front view showing a schematic diagram of a power generation mechanism. [Figure 7] FIG. 2 is a plan view showing a schematic diagram of a power generation mechanism. [Figure 8] 11A and 11B are diagrams illustrating a center of gravity adjustment mechanism. [Figure 9] 11A and 11B are diagrams illustrating a vibration period adjustment mechanism. [Figure 10] 13A and 13B are a plan view and a side view illustrating a swing power generating device according to another embodiment. [Figure 11] FIG. 11 is a plan view illustrating a swing power generating device according to another embodiment. [Figure 12] 13A and 13B are a plan view and a side view illustrating a swing power generating device according to another embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0026] Hereinafter, embodiments of a swing power generating device and a power storage method according to the present invention will be described in detail with reference to the accompanying drawings. Note that the embodiment of the swing power generating device will be described first. In the first and second embodiments, the swing power generating device of the present invention is incorporated into a device that utilizes wave power.

[0027] [First embodiment] As shown in Figures 1 and 2, the oscillation power generation device 1 of this embodiment includes a float 2, a first support 10, a rotating shaft 20, a second support 30, a power generation weight 33, a power generation mechanism 40 (see Figure 5), a vibration suppression mechanism 50, a control unit, a control battery, and a storage battery (not shown).

[0028] The float 2 is hollow and floats on the water surface W. The float 2 is generally egg-shaped, and contains all the components. In this embodiment, the egg-shaped float 2 has a pointed sharp end 3 that faces upward and protrudes above the water surface W, and a rounded blunt end 4 that faces downward and is submerged in the water. Inside the blunt end 4, a lower weight 5 is appropriately provided to maintain the posture of the float 2.

[0029] The first support 10 is provided in the float 2 so that its axis is in the up-down direction. In this embodiment, the first support 10 includes an upper column portion 11 and a lower column portion 12 each made of a single column, an intermediate column portion 13 having a vertically elongated, generally square-shaped shape when viewed from the front, and direction adjustment bearings 14a and 14b. The ends of the upper column portion 11 and the lower column portion 12 are supported by the direction adjustment bearings 14a and 14b. Therefore, the first support 10 can rotate around its longitudinal axis. Then, by rotating the first support 10, the rotation axis is always perpendicular to the traveling direction of the waves. Note that instead of a columnar member as in this embodiment, the wall surface of the float 2 can be used as the first support, or other bodies or structures can be used.

[0030] Of the above-mentioned direction adjustment bearings 14a and 14b, the one provided on the upper side is directly installed on the inner surface of the floating body 2 or indirectly via a bracket or the like (not shown). The one provided on the lower side is installed in a form embedded in the lower weight 5. If there are other components around the lower column part 12, for example, a turntable 15 (indicated by the broken line in Figs. 1 and 2) provided on the lower weight 5 may be used as the lower direction adjustment bearing 14b, and the other components may be placed on this turntable 15. For the rotation of the first support 10, a control unit, a control battery, and an actuator (not shown) may be provided to perform some control, but in this embodiment, the inertia due to the vibration of the second support 30 can automatically turn the direction perpendicular to the axis of the rotation shaft 20 toward the waves.

[0031] The rotating shaft 20 is provided horizontally on the first support 10, and includes a horizontal shaft 21 and a pendulum bearing 22. The horizontal shaft 21 is provided between the two intermediate pillars 13, and is installed so that both left and right ends thereof fit into the intermediate pillars 13. The pendulum bearing 22 is provided in the center of the horizontal shaft 21, rotates relative to the horizontal shaft 21, and has the second support 30 attached to it. Note that in this embodiment, no load for generating electricity, such as one that extracts power directly from the axis of the rotating shaft 20, is connected to the rotating shaft 20.

[0032] The second support 30 is suspended from the pivot shaft 20 and performs pendulum motion, and in this embodiment, two parallel columns are suspended. In addition, a spring support portion 31 is provided between the two second supports 30 to support the upper end of a spring 32, which will be described later.

[0033] The power generating weight 33 is supported by a spring 32 on a spring support portion 31 provided on the second support 30, and reciprocates along the second support 30 by centrifugal force due to the pendulum motion of the second support 30. The power generating weight 33 is slidably attached to the second support 30 by a linear bearing 35. The lower end of the spring 32 is attached to a spring attachment plate 34 installed in the center of the upper surface of the power generating weight 33 (see the dashed line portion in FIG. 5). The lower surface of the power generating weight 33 is arc-shaped in side view, and when the position of the power generating weight 33 is lowered, the lower surface of the power generating weight 33 comes into contact with a brake wheel 51 (described later) with approximately the same strength.

[0034] The movement of this power-generating weight 33 will be described with reference to Fig. 3 and Fig. 4(A)-(D). Fig. 3 is a diagram for explaining a state in which the second support 30 performs a pendulum motion due to the oscillation of the floating body 2 when it is vibrated by waves. At this time, since there is no particular load on the rotating shaft 20, the second support 30 can easily start vibrating.

[0035] Next, the reciprocating motion of the power generating weight 33 will be explained using Fig. 4(A)-(D). Note that these figures are shown in a schematic manner for easy understanding. Fig. 4(A) shows the second support 30 in a stationary state. Assume that the second support 30 moves from here to the right side of the figure in response to the vibration of the floating body 2. When the second support 30 vibrates to the right from the position shown in Fig. 4(A), the power generating weight 33 initially moves to the opposite side of the rotation axis 20 due to centrifugal force. Next, as shown in Fig. 4(B), when the second support 30 reaches the end of its amplitude, the centrifugal force acting on the power generating weight 33 disappears, and the power generating weight 33 moves to the side of the rotation axis 20. Next, the second support 30 starts to move to the left side, reaching the state shown in Fig. 4(C), at which point the centrifugal force acts on the power generating weight 33, causing it to move to the opposite side of the rotation axis 20. 4(D), the centrifugal force acting on the power generation weight 33 disappears, and the power generation weight 33 moves toward the rotating shaft 20. By repeating these steps, the power generation weight 33 repeats a reciprocating motion along the second support 30.

[0036] The power generating mechanism 40 generates power by the reciprocating motion of the power generating weight 33. The power generating mechanism 40 will be described with reference to Figs. 5 to 7. In this embodiment, the power generating mechanism 40 is attached to the inside of the second support 30 and the power generating weight 33. To explain this in detail, the power generating mechanism 40 includes two rack gears 41a, 41b, two pinion gears 42a, 42b arranged on the same axis, a one-way clutch 43, a torque converter 44, a flywheel 45, a generator 46, and a plurality of output shafts 47a, 47b, 47c that connect the configuration from the one-way clutch 43 (pinion gears 42a, 42b) to the generator 46. Of these, the torque converter 44, the flywheel 45, the generator 46, and parts of the output shafts 47a, 47b, 47c are housed in a generator box 48 (or attached to a generator board 48). The generator box 48 is then attached to the second support 30 via a bracket 49c. As a result, the two pinion gears 42a, 42b are indirectly attached to the second support 30.

[0037] Two rack gears 41a, 41b are provided facing each other so as to correspond to the two pinion gears 42a, 42b exposed from the generator box 48. The two rack gears 41a, 41b are attached to the power generation weight 33 via brackets 49a, 49b. The rack gears 41a, 41b are attached in a direction such that the longitudinal direction of the rack gears 41a, 41b is along the second support 30, i.e., along the reciprocating motion of the power generation weight 33. As a result, the rack gears 41a, 41b are indirectly fixed to the power generation weight 33 that reciprocates relative to the second support 30. The one-way clutch 43 is built into the pinion gears 42a, 42b and rotates the output shaft 47a in the same direction regardless of the rotation direction of the two pinion gears 42a, 42b.

[0038] With this configuration, when the power generating weight 33 reciprocates relative to the second support 30, the two pinion gears 42a, 42b are rotated in opposite directions by the rack gears 41a, 41b attached to the power generating weight 33. For example, when the rack gears 41a, 41b shown in Fig. 6 and Fig. 7 move downward in Fig. 6, the pinion gear 42a abutting on the right rack gear 41a rotates clockwise as viewed from the front, and the pinion gear 42b abutting on the left rack gear 41b rotates counterclockwise. At this time, if the one-way clutch 43 is arranged to allow the output shaft 47a to rotate only clockwise, the pinion gear 42a abutting on the right rack gear 41a rotates the output shaft 47a, and the pinion gear 42b abutting on the left rack gear 41b rotates idly. Conversely, when the rack gears 41a and 41b move upward, the pinion gear 42a in contact with the right rack gear 41a rotates left when viewed from the front, and the pinion gear 42b in contact with the left rack gear 41b rotates right. Then, the pinion gear 42a in contact with the right rack gear 41a rotates idly, and the pinion gear 42b in contact with the left rack gear 41b rotates the output shaft 47a. The rotation of the output shafts 47a, 47b, and 47c drives the torque converter 44, the flywheel 45, and the generator 46 connected in the rear stage to generate electricity. The generated electricity is stored in the storage battery through a cable (not shown). It is also possible to reverse the above configuration by attaching the rack gears 41a and 41b to the second support 30 and attaching the generator box 48 or the generator board 48 to the generator weight 33. Furthermore, the torque converter 44 and the flywheel 45 are not essential components and may be omitted.

[0039] Returning to Figs. 1 and 2, the vibration suppression mechanism 50 will be described. The vibration suppression mechanism 50 restricts the pendulum motion of the second support 30 by contacting the power generating weight 33. This is achieved by lowering the position of the power generating weight 33 and contacting the vibration suppression mechanism 50 using the center of gravity adjustment mechanism 60 and the vibration suppression mechanism 50, which will be described later. In this embodiment, the vibration suppression mechanism 50 includes a brake wheel 51, a brake shaft 52, a bracket 53, and an auxiliary generator 54. The brake wheel 51 rotates when the power generating weight 33 contacts it. The brake shaft 52 transmits the rotation of the brake wheel 51 and is journaled by the bracket 53 to support the brake wheel 51. The bracket 53 is attached to the first support 10 and supports the brake shaft 52 so that it can rotate. The auxiliary generator 54 converts the rotation of the brake shaft 52 into electric power. 2, the amount of power generated by the auxiliary generator 54 can be doubled. Furthermore, instead of generating power as in this embodiment, the vibration suppression mechanism 50 may be a mechanism that presses a resisting material such as a friction material against the power generating weight 33 by driving the material with an actuator (neither of which is shown).

[0040] Next, the center of gravity adjustment mechanism 60 and a power generation method using the center of gravity adjustment mechanism 60 will be described with reference to FIG. 8. The center of gravity adjustment mechanism 60 adjusts the height of the rotating shaft 20 relative to the first support 10 to change the center of gravity of the entire rocking power generation device 1. In this embodiment, a ball screw mechanism is used in which both left and right ends of the rotating shaft 20 are inserted into the intermediate column part 13 of the first support 10, and the ends are used as nuts 61, through which a screw shaft 62 passing through the intermediate column part 13 is inserted. In addition, in the range of movement of the rotating shaft 20 in the vertical direction, slits (not shown) for moving the rotating shaft 20 are provided on the opposing surfaces of the intermediate column part 13. The screw shaft 62 is driven by an actuator 63 provided on the side surface of the intermediate column part 13. The operation of this actuator 63 is performed by the control unit (not shown) and the control battery (not shown) described above.

[0041] By moving this pivot shaft 20 up and down, the position of the center of gravity of the float 2 can be adjusted, the strength of the restoring force of the float 2 can be adjusted, and the vibration frequency of the float 2 can be controlled. For example, when the wave height is high and the wave period is short, the position of the center of gravity can be lowered to strengthen the restoring force of the float 2, and the vibration frequency of the float 2 can be increased, thereby increasing the vibration frequency of the second support 30. Conversely, when the wave height is low and the wave period is long, the position of the center of gravity can be raised to weaken the restoring force of the float 2, and instead of lowering the vibration frequency of the float 2, a state in which the float 2 is likely to tilt even in weak waves can be created, and the second support 30 can be actively vibrated.

[0042] Next, the vibration period adjustment mechanism 70 and the power generation method using the vibration period adjustment mechanism 70 will be described with reference to FIG. 9. The vibration period adjustment mechanism 70 adjusts the height of the spring 32 and the power generation weight 33 relative to the second support 30, and adjusts the period of the pendulum motion of the second support 30. In this embodiment, a ball screw mechanism is used in which both left and right ends of the spring support 31 are inserted into the second support 30, and the ends are used as nuts 71, through which a screw shaft 72 passing through the second support 30 is inserted. In addition, in the moving range of the spring support 31, slits (not shown) are provided on the opposing surfaces of the second support 30 for moving the rotating shaft 20. The screw shaft 72 is driven by an actuator 73 provided on the side of the second support 30. The operation of this actuator 73 is performed by a control unit and a control battery (not shown), similar to the center of gravity adjustment mechanism 60.

[0043] By raising and lowering this power generating weight 33, the vibration period of the second support 30 is adjusted and resonated with the vibration period of the floating body 2. In other words, when the number of vibrations per unit time of the floating body 2 is high, the height of the spring 32 and the power generating weight 33 is raised to shorten the vibration period of the second support 30. On the other hand, when the number of vibrations per unit time of the floating body 2 is low, the height of the spring 32 and the power generating weight 33 is lowered to lengthen the vibration period of the second support 30. This makes it possible to vibrate the second support 30 more efficiently.

[0044] [Second embodiment] Next, referring to Fig. 10 and Fig. 11, the oscillation power generation device 101, 201 and the power storage method according to another embodiment will be described. Fig. 10(A) is a plan view of the oscillation power generation device 101 according to this embodiment, and Fig. 10(B) is a side view. Note that the power generation mechanism 40 and the like are omitted in Fig. 10 and Fig. 11. In this embodiment, a pair of first supports 110 attached to the floor surface FL of the float 102 are approximately A-shaped in side view, and the rotation shaft 20 is located at the apex of the approximately A-shaped shape. In addition, the vibration suppression mechanism 150 has a bracket 153 attached to the floor surface FL. The other configurations such as the second support 30 and the power generation weight 33 are the same as those in the first embodiment described above, and the same reference numerals are used and the description thereof is omitted. Note that the configuration of the float 2 may be an egg shape as in the first embodiment, and a center of gravity adjustment mechanism and a vibration period adjustment mechanism as in the first embodiment may be provided.

[0045] Also, as shown in FIG. 11, the oscillation power generation device 201 can be arranged radially on the floor surface FL of a relatively large floating body 202 by preparing a plurality of components of the oscillation power generation device 101 shown in FIG. 10(A)(B) except for the floating body 102. In this way, it is possible to respond to waves in all directions. Furthermore, the components of the oscillation power generation device 101 shown in FIG. 10(A)(B) except for the floating body 102 can be installed on land or the like and used as a power storage device, thereby implementing a power storage method. In this case, an actuator (not shown) is provided on the rotating shaft 20, and when surplus power is generated, the actuator is driven to lift the second support 30 and keep it in an inclined state. Then, when power is needed, the rotating shaft 20 is separated from the actuator, and power is generated by the pendulum motion of the second support 30. The actuator can be provided not only directly on the rotating shaft, but also indirectly. For example, an actuator can be provided on the second support 30, and the rotating shaft can be rotated by moving the second support. In both the first and second embodiments, the floating body can be replaced with a small vessel and the vessel can be installed on the vessel.

[0046] [Third embodiment] Next, a swing power generating device 301 that generates power using wind power will be described with reference to Figs. 12(A) and (B). In this embodiment, the description of the power generating mechanism 40 and the like will be omitted, and the same parts as in the first and second embodiments will be given the same reference numerals and their description will be omitted. In this embodiment, a wind receiver 80 is provided above the rotating shaft 20. This wind receiver 80 is provided with a wind direction adjustment shaft 81 installed on the rotating shaft 20, and a wind receiving plate 82 attached to the wind direction adjustment shaft 81 and whose direction can be adjusted (arrows a and b in the figure). The wind direction adjustment shaft 81 adjusts the wind receiving plate 82 to an optimal direction depending on the wind direction at that time, and is operated by an actuator, a wind direction sensor, a control unit, and the like (not shown). The first support 110 is installed on land such as the ground GL, but it can also be installed on the floating body 202 shown in the second embodiment and placed on the sea, or on a ship.

[0047] Next, the operation of the oscillation power generation device 301 according to this embodiment will be described. As a premise, it is assumed that the wind is blowing from left to right in FIG. 12(B). First, the wind direction adjustment shaft 81 is rotated so that the wide surface of the wind receiving plate 82 faces the wind. Then, the rotating shaft 20 rotates due to the influence of the wind, the wind receiving part 80 tilts to the right (arrow c in the figure), and the second support 30 swings to the left (arrow d in the figure). In this state, the wind direction plate 82 is rotated 90 degrees so that it is not affected by the wind. Then, the second support 20 starts to vibrate and generates power. Also, when the wind blows strongly and then stops, power generation may be possible even if the direction of the wind direction plate 82 is fixed.

[0048] As described above, according to the oscillation power generation device of this embodiment, since the float is egg-shaped and the blunt end faces downward, the float vibrates moderately with waves while having a restoring force. This allows continuous vibration with waves. In addition, since a relatively large portion of the upper part of the float protrudes from the water surface, the float can also vibrate with wind to generate power. In addition, since there is no direct load that draws power from the axis of the rotating shaft, the vibration of the second support starts immediately when the float vibrates, and the vibration of the second support continues even when the waves subside and the vibration of the float stops. This allows power generation to continue even between waves. In addition, when the second support performs a pendulum motion, the power generation weight makes two reciprocations during one reciprocation, supplying power to the power generation mechanism about four times. This allows highly efficient and stable power generation.

[0049] The direction of the first support is changed by the direction adjustment bearing. At this time, the inertia of the power generation weight caused by the vibration of the second support automatically changes the direction of the first support without requiring any special control or power, and the rotation axis can be made perpendicular to the direction of wave travel. This allows efficient power generation despite the simple configuration. The center of gravity can be adjusted according to the wave height by the center of gravity adjustment mechanism, and the vibration of the float can be optimized according to the wave conditions. The vibration period adjustment mechanism can change the vibration period of the second support, and the vibration frequency of the second support can be matched to the vibration frequency of the float at that time, thereby improving power generation efficiency.

[0050] In addition, the vibration suppression mechanism can suppress the vibration of the second support in bad weather, etc., preventing damage to the device and also allowing the auxiliary generator to generate power. At this time, the power generating weight is brought into contact with the brake wheel by the center of gravity adjustment mechanism and the vibration period adjustment mechanism, and since the power generating weight is suspended by a spring, this spring acts as a suspension device and can adjust the degree of contact with the brake wheel. In addition, by providing a wind receiver above the rotating shaft, it is also possible to generate power from wind force.

[0051] Moreover, according to the electricity storage method of this embodiment, energy can be stored simply by lifting and tilting the pendulum consisting of the second support, etc., making it easy to implement. Also, when releasing the stored energy, as already mentioned, no load is directly connected to the rotating shaft, so the pendulum motion of the second support tends to continue, making it possible to generate electricity for a relatively long period of time.

[0052] The oscillation power generating device and the electricity storing method described above are merely examples of the present invention, and the configurations thereof can be modified as appropriate without departing from the spirit and scope of the invention. [Explanation of symbols]

[0053]

[0033] 1,101,201,301··oscillating power generation device, 2,102,202··floor, 3··sharp end, 4··blunt end, 5··lower weight, W··water surface, FL··floor surface, GL··ground, 10,110··first support, 11··upper column section, 12··lower column section, 13··middle column section, 14a,14b··direction adjustment bearing, 15··turntable, 20··rotating shaft, 21··horizontal shaft, 22··pendulum bearing, 30··second support, 31··spring support section, 32··spring, 33··power generation weight, 34··spring mounting plate, 35··linear bearing, 40··power generation mechanism, 41a,41b··rack gear, 42a,42b··pinion Gear, 43··One-way clutch, 44··Torque converter, 45··Flywheel, 46··Generator, 47a, 47b, 47c··Output shaft, 48··Generator box (generator board), 49a, 49b, 49c··Bracket, 50, 150··Vibration suppression mechanism, 51··Braking wheel, 52··Braking shaft, 53, 153··Bracket, 54··Auxiliary generator, 60··Center of gravity adjustment mechanism, 61··Nut, 62··Threaded shaft, 63··Actuator, 70··Vibration period adjustment mechanism, 71··Nut, 72··Threaded shaft, 73··Actuator, 80··Wind receiver, 81··Wind direction adjustment shaft, 82··Wind receiver plate

Claims

1. a rotation shaft provided horizontally on the first support; a second support suspended from the rotation shaft and performing a pendulum motion rotating around the rotation shaft; a power-generating weight that is supported by a spring on the second support and that reciprocates toward the pivot shaft and away from the pivot shaft due to the pendulum motion of the second support; a power generating mechanism that converts the reciprocating motion of the power generating weight into rotational motion to generate electricity; A swing power generating device comprising:

2. An oscillating power generation device as described in Claim 1, wherein the power generation mechanism is attached to the second support and the power generation weight.

3. A rotation axis provided horizontally on the first support; a second support suspended from the rotation shaft and performing a pendulum motion rotating around the rotation shaft; a power-generating weight that is supported by a spring on the second support and that reciprocates toward the pivot shaft and away from the pivot shaft due to the pendulum motion of the second support; a power generation mechanism attached to the second support and the power generation weight, which generates power by the reciprocating motion of the power generation weight; A swing power generating device comprising:

4. 4. The oscillation power generating device according to claim 1, further comprising a vibration suppression mechanism that contacts the power generating weight to restrict pendulum motion of the second support.

5. 5. The oscillation power generating apparatus according to claim 4, wherein the vibration suppression mechanism comprises a brake wheel that rotates in contact with the power generating weight, and an auxiliary generator that generates electricity by the rotation of the brake wheel.

6. A rotation axis provided horizontally on the first support; a second support suspended from the rotation shaft and performing a pendulum motion rotating around the rotation shaft; a power-generating weight that is supported by a spring on the second support and that reciprocates toward the pivot shaft and away from the pivot shaft due to the pendulum motion of the second support; a power generation mechanism that generates electricity by the reciprocating motion of the power generation weight; a vibration suppression mechanism that abuts against the power-generating weight to limit the pendulum motion of the second support; A swing power generation device comprising:

7. An oscillating power generation device as described in Claim 6, wherein the vibration suppression mechanism comprises a brake wheel that rotates in contact with the power generation weight, and an auxiliary generator that generates electricity by the rotation of the brake wheel.

8. A oscillating power generation device as described in claim 1, 2, 3, 6 or 7, which does not have a load for generating power by extracting power from the axis of the rotating shaft.

9. A oscillating power generation device as described in claim 1, 2, 3, 6 or 7, which is provided with a center of gravity adjustment mechanism that enables the height of the rotation axis to be adjusted relative to the first support.

Images