WO2021246223A1 - Power generation device - Google Patents

Power generation device Download PDF

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Publication number
WO2021246223A1
WO2021246223A1 PCT/JP2021/019605 JP2021019605W WO2021246223A1 WO 2021246223 A1 WO2021246223 A1 WO 2021246223A1 JP 2021019605 W JP2021019605 W JP 2021019605W WO 2021246223 A1 WO2021246223 A1 WO 2021246223A1
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WO
WIPO (PCT)
Prior art keywords
lever
magnet
power generation
coil
generation device
Prior art date
Application number
PCT/JP2021/019605
Other languages
French (fr)
Japanese (ja)
Inventor
伸之 二宮
Original Assignee
アルプスアルパイン株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by アルプスアルパイン株式会社 filed Critical アルプスアルパイン株式会社
Priority to JP2022528756A priority Critical patent/JP7340699B2/en
Priority to CN202180037552.8A priority patent/CN115699544A/en
Publication of WO2021246223A1 publication Critical patent/WO2021246223A1/en

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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K35/00—Generators with reciprocating, oscillating or vibrating coil system, magnet, armature or other part of the magnetic circuit

Definitions

  • the present invention relates to a power generation device.
  • Patent Document 1 discloses a technique in which an upper and lower rod is connected to the rear wheel of a two-wheeled vehicle via a movable arm, and the upper and lower rods are moved up and down in a coil as the rear wheel moves up and down to generate electricity. ing.
  • the power generation device has a rotating shaft portion, is connected to a rotatably provided lever and a first connecting portion of the lever, and rotates the lever by vibrating in the horizontal direction.
  • a magnet unit that is connected to the vibrating body and the second connecting portion on one end side of the lever and swings horizontally as the lever rotates, and faces the magnet unit with a rotating shaft portion in between. It is provided with a coil unit which is connected to a third connecting portion on the other end side of the lever and swings in the direction opposite to the magnet unit in the horizontal direction as the lever rotates.
  • the power generation efficiency of the power generation device can be improved.
  • External perspective view of the power generation device External perspective view of the power generation device (with the cover removed) according to the embodiment.
  • External perspective view of the coil unit according to one embodiment An exploded perspective view of the coil unit according to the embodiment.
  • Sectional drawing of the magnet unit which concerns on one Embodiment External perspective view showing the configuration of the deep bottom of the case according to one embodiment.
  • It is a front view which shows the neutral state of the vibrating body in the power generation apparatus which concerns on one Embodiment.
  • It is a front view which shows the state which the vibrating body vibrates to the left in the power generation apparatus which concerns on one Embodiment.
  • FIG. 1 is an external perspective view of the power generation device 100 according to the embodiment.
  • the Z-axis direction in the figure is the vertical direction
  • the X-axis direction in the figure is the left-right direction (an example of "horizontal direction")
  • the Y-axis direction in the figure is the front-back direction. ..
  • the power generation device 100 shown in FIG. 1 is a device that is installed in various vibration generators and generates electric power by using electromagnetic induction when vibrations from the vibration generators are applied. For example, by installing the power generation device 100 on a roller of a belt conveyor, it is possible to generate electric power as the roller rotates. This electric power is stored in a storage battery (not shown), and is used by a communication module (not shown) to wirelessly transmit a signal indicating the rotation of the roller to the outside.
  • the power generation device 100 includes a case 102 and a cover 104.
  • the power generation device 100 has a rectangular parallelepiped outer shape due to the case 102 and the cover 104 combined with each other.
  • the case 102 is a container-shaped member having a rectangular parallelepiped shape in which the front surface (the surface on the negative side of the Y axis) of the internal space 102A is open.
  • the case 102 has a rectangular shape with the vertical direction (Z-axis direction) as the longitudinal direction in a plan view from the front (Y-axis negative side).
  • the case 102 is formed by using a resin material.
  • Each component is housed in the internal space 102A of the case 102.
  • the upper surface of the case 102 is curved in a concave shape so that it can be brought into close contact with the mounting surface of the roller to which the power generation device 100 is mounted.
  • the cover 104 is a metal and flat plate-shaped member that closes the front surface of the internal space 102A of the case 102.
  • the cover 104 has substantially the same shape as the front surface of the case 102 (that is, a rectangular shape whose longitudinal direction is the vertical direction (Z-axis direction)) in a plan view from the front.
  • the cover 104 has a pair of hooks 104A provided on each of the left and right edges. The cover 104 is in a state in which each of the pair of hooks 104A closes the front surface of the internal space 102A of the case 102 by engaging with each of the pair of claw portions 102B formed on the left and right side surfaces of the case 102. Then, it is fixed to the case 102.
  • FIG. 2 is an external perspective view of the power generation device 100 (with the cover 104 removed) according to the embodiment.
  • FIG. 3 is an exploded perspective view of the vibrating body 110 and the elastic member 120 according to the embodiment.
  • FIG. 4 is an external perspective view of the coil unit 130 according to the embodiment.
  • FIG. 5 is an exploded perspective view of the coil unit 130 according to the embodiment.
  • FIG. 6 is an exploded perspective view of the magnet unit 140 according to the embodiment.
  • FIG. 7 is a cross-sectional view of the magnet unit 140 according to the embodiment.
  • FIG. 8 is an external perspective view showing the configuration of the deep bottom portion of the case 102 according to the embodiment.
  • the power generation device 100 includes a vibrating body 110, an elastic member 120, a coil unit 130, a magnet unit 140, a lever 150, and terminals 161, 162.
  • the vibrating body 110 is provided at the lower part inside the case 102.
  • the vibrating body 110 is suspended from above (Z-axis positive direction) so as to be vibrable in the left-right direction (X-axis direction), which is an example of the "horizontal direction", by a pair of elastic arm portions 124 of the elastic member 120.
  • X-axis direction which is an example of the "horizontal direction”
  • the meaning of "vibrating in the left-right direction” is not limited to the movement in the left-right direction in a perfect straight line, but is due to being suspended by a pair of elastic arm portions 124 as in the present embodiment. Strictly speaking, it also includes swinging in the left-right direction so as to draw an arc. As shown in FIGS.
  • the vibrating body 110 includes a weight 111, a holder 112, and a cover 113.
  • the weight 111 is a rectangular parallelepiped member having a constant weight.
  • the holder 112 is a container-shaped member having a rectangular parallelepiped shape with an open front surface (Y-axis negative side surface), an upper surface (Z-axis positive side surface), and a lower surface (Z-axis negative side surface).
  • the holder 112 holds the weight 111 by accommodating the weight 111 inside.
  • the cover 113 is a metal and flat plate-shaped member that closes the front surface of the holder 112.
  • the cover 113 has a rectangular shape having substantially the same shape as the front surface of the holder 112 in a plan view from the front.
  • the cover 113 has a pair of hooks 113A provided on each of the left and right edges.
  • the holder 112 closes the front surface of the holder 112 in which the weight 111 is housed by engaging each of the pair of hooks 113A with each of the pair of claw portions 112A formed on the left and right side surfaces of the holder 112. In this state, it is fixed to the holder 112.
  • the vibrating body 110 vibrates in the left-right direction (X-axis direction) while elastically deforming the pair of elastic arm portions 124 of the elastic member 120.
  • the vibrating body 110 is connected to the first connecting portion 153 (see FIG. 8) of the lever 150.
  • the vibrating body 110 can rotate the lever 150 in accordance with the vibration in the left-right direction (X-axis direction).
  • the weight 111 preferably has a sufficient mass so that the vibration of the vibrating body 110 can overcome the attractive force due to the magnetic force between the coil unit 130 and the magnet unit 140.
  • the elastic member 120 is a metal member that can be elastically deformed.
  • the elastic member 120 includes a fixing portion 122 and a pair of left and right elastic arm portions 124.
  • the fixing portion 122 is a flat plate-shaped portion fixed to the upper part inside the case 102. That is, the fixing portion 122 functions as a fixed end of the elastic member 120.
  • the pair of elastic arm portions 124 are provided so as to hang downward from each of the left and right end portions of the fixing portion 122.
  • the pair of elastic arm portions 124 are leaf spring-shaped portions extending in the vertical direction (Z-axis direction).
  • the pair of elastic arm portions 124 have a side surface of the weight 111 and an inner surface of the holder 112, and a bottom surface of the weight 111 and a holder, respectively, at their lower end portions 124A and the connecting portion 124B (that is, the swinging end of the elastic member 120).
  • the vibrating body 110 is suspended by being inserted into the gap between the inner bottom surface of the 112 and the inner bottom surface of the 112.
  • the pair of elastic arm portions 124 can be elastically deformed in the left-right direction.
  • the coil unit 130 is provided on the upper side of the vibrating body 110 and on the lower side of the magnet unit 140 between the pair of elastic arm portions 124 of the elastic member 120. As shown in FIGS. 4 and 5, the coil unit 130 includes a coil 132A, a coil 132B, a bobbin 134, a magnetic core 136, and a wire 138.
  • the coil 132A and the coil 132B are arranged side by side in the left-right direction (X-axis direction).
  • the coil 132A is arranged on the left side (negative side of the X axis), and the coil 132B is arranged on the right side (positive side of the X axis).
  • the coil 132A and the coil 132B are formed in a columnar shape by winding the wire 138 multiple times.
  • the coil 132A and the coil 132B are both electrically connected in series by being formed by a single wire 138.
  • As the wire 138 for example, a copper wire is used.
  • One end (X-axis negative side) end 138A of the wire 138 is pulled upward from the left side (X-axis negative side) side surface of the bobbin 134 and connected to the terminal 161 (see FIG. 2).
  • the other end (X-axis positive side) end 138B of the wire 138 is pulled upward from the right side (X-axis negative side) side surface of the bobbin 134 and connected to the terminal 162 (see FIG. 2).
  • the magnetic core 136 is a member formed of a metal plate.
  • the magnetic core 136 has a first magnetic core portion 136A, a second magnetic core portion 136B, and a connecting portion 136C.
  • the first magnetic core portion 136A and the second magnetic core portion 136B are strip-shaped portions extending linearly in the vertical direction (Z-axis direction).
  • the first magnetic core portion 136A and the second magnetic core portion 136B are arranged side by side in the left-right direction (X-axis direction) and are parallel to each other.
  • the first magnetic core portion 136A is inserted into the cylinder of the coil 132A.
  • the second magnetic core portion 136B is inserted into the cylinder of the coil 132B.
  • the connecting portion 136C is a strip-shaped portion extending linearly in the left-right direction (X-axis direction).
  • the connecting portion 136C connects the lower end portion of the first magnetic core portion 136A and the second magnetic core portion 136B.
  • the bobbin 134 is a member that holds the coil 132A, the coil 132B, and the magnetic core 136.
  • the bobbin 134 has a coil accommodating portion 134A, a coil accommodating portion 134B, and a magnetic core accommodating portion 134C.
  • the coil accommodating portion 134A is a space having a shape corresponding to the outer shape (that is, cylindrical shape) of the coil 132A and is open at the front (Y-axis negative direction), and the coil 132A is accommodated from the front.
  • the coil accommodating portion 134B is a space having a shape corresponding to the outer shape (that is, cylindrical shape) of the coil 132B and is open at the front (Y-axis negative direction), and the coil 132B is accommodated from the front.
  • the magnetic core accommodating portion 134C is a space having an open front (Y-axis negative direction) having a shape corresponding to the outer shape of the connecting portion 136C of the magnetic core 136, and accommodating the connecting portion 136C of the magnetic core 136 from the front.
  • the bobbin 134 is formed using a resin material.
  • the coil unit 130 functions as an electromagnet according to the above configuration. Specifically, in the coil unit 130, the magnetic core 136 (the upper end portion of the first magnetic core portion 136A and the upper end portion of the second magnetic core portion 136B) from the magnet unit 140 as the coil unit 130 and the magnet unit 140 swing. The magnetic force applied to the changes. As a result, the magnetic flux around the first magnetic core portion 136A inside the cylinder of the coil 132A and the magnetic flux around the second magnetic core portion 136B inside the cylinder of the coil 132B change. As a result, an electric current is generated in each of the coil 132A and the coil 132B by electromagnetic induction. Then, the current generated in each of the coil 132A and the coil 132B is output from the terminal 161 and the terminal 162 via the wire 138.
  • the coil unit 130 is connected to the third connecting portion 154 (see FIG. 8) of the lever 150. As a result, the coil unit 130 can swing in the left-right direction (X-axis direction) together with the magnet unit 140 when the lever 150 rotates with the vibration of the vibrating body 110. However, the coil unit 130 swings in the direction opposite to that of the magnet unit 140.
  • the magnet unit 140 is provided on the upper side of the coil unit 130 between the pair of elastic arm portions 124 of the elastic member 120. As shown in FIG. 6, the magnet unit 140 includes a magnet 142, a yoke 144, a magnet holder 146, and a cover 148.
  • the magnet 142 has a columnar shape whose longitudinal direction is the vertical direction.
  • a permanent magnet for example, a neodymium magnet
  • the magnet 142 is magnetized at the north pole or the south pole so that the upper first polar portion 142A and the lower second polar portion 142B have different polarities from each other.
  • the magnet 142 is arranged on the right side (right side of the X axis) of the center in the left-right direction (X-axis direction).
  • the lower end surface of the magnet 142 faces the upper end surface of the second magnetic core portion 136B of the coil unit 130 with the cover 148 in between.
  • the yoke 144 is a member formed of a metal plate.
  • the yoke 144 has a rectangular shape with the left-right direction (X-axis direction) as the longitudinal direction in a plan view from the front.
  • the right end of the lower edge of the yoke 144 is in contact with the upper end surface of the magnet 142.
  • the yoke 144 is magnetized to the polarity (N pole or S pole) of the first polar portion 142A of the magnet 142.
  • a protruding portion 144A protruding downward is provided at the left end portion of the lower edge portion of the yoke 144.
  • the length of the protrusion 144A in the vertical direction is the same as the length of the magnet 142 in the vertical direction.
  • the lower end surface of the protruding portion 144A faces the upper end surface of the first magnetic core portion 136A of the coil unit 130 with the cover 148 interposed therebetween.
  • the magnet holder 146 holds the magnet 142 and the yoke 144.
  • the magnet holder 146 is formed by using a resin material.
  • a cavity portion 146C having the same outer shape as the outer shape of the magnet 142 and the yoke 144 is formed inside the magnet holder 146.
  • the magnet holder 146 holds the magnet 142 and the yoke 144 by embedding the magnet 142 and the yoke 144 in the cavity 146C.
  • a portion in which the protruding portion 144A of the yoke 144 is accommodated and a portion in which the magnet 142 is accommodated are open to the bottom surface side.
  • the lower surface of the protruding portion 144A of the yoke 144 and the lower surface of the magnet 142 are exposed from the bottom surface of the magnet holder 146.
  • the cover 148 is a metal and flat plate-shaped member that closes the bottom surface of the magnet holder 146.
  • the cover 148 has substantially the same shape as the bottom surface of the magnet holder 146 (that is, a rectangular shape whose longitudinal direction is the left-right direction (X-axis direction)) in a plan view from below.
  • the cover 148 has a pair of hooks 148A provided on each of the left and right edges. The cover 148 is in a state where the bottom surface of the magnet holder 146 is closed by each of the pair of hooks 148A engaging with each of the pair of claw portions 146A formed on the left and right side surfaces of the magnet holder 146. It is fixed to the magnet holder 146.
  • the magnet unit 140 is connected to the second connecting portion 152 (see FIG. 8) of the lever 150. As a result, the magnet unit 140 can swing in the left-right direction (X-axis direction) together with the coil unit 130 when the lever 150 rotates with the vibration of the vibrating body 110. However, the magnet unit 140 swings in the direction opposite to that of the coil unit 130.
  • the lever 150 is an elongated rod-shaped member extending in the vertical direction (Z-axis direction). As shown in FIG. 8, the lever 150 has a circular shaft hole 151 (an example of a “rotating shaft portion”) penetrating in the front-rear direction (Y-axis direction) in an intermediate portion in the vertical direction (Z-axis direction). Have.
  • the lever 150 is fitted with a cylindrical shaft portion 102D provided so that the shaft hole 151 projects forward (Y-axis negative direction) from the back bottom surface 102C of the case 102, so that the lever 150 is fitted to the back bottom surface 102C of the case 102. It is rotatably provided with the shaft hole 151 as the center of rotation.
  • the lever 150 has an upper lever portion 150A extending above the shaft hole 151 and a lower lever portion 150B extending below the shaft hole 151.
  • the lower lever portion 150B has a longer length in the vertical direction than the upper lever portion 150A.
  • the ratio of the lengths of the upper lever portion 150A and the lower lever portion 150B is about 1: 2.
  • a columnar first connecting portion 153 is provided so as to project forward (in the negative direction of the Y axis).
  • the first connecting portion 153 is connected to the vibrating body 110 to rotate the lever 150 with the vibration of the vibrating body 110.
  • the ratio of the lengths of the upper lever portion 150A and the lower lever portion 150B of the lever 150 is approximately 1: 2, the coil unit 130 and the magnet are accompanied by the vibration of the lever 150 according to the principle of the lever.
  • the force for peeling off the suction force with the unit 140 is approximately doubled.
  • a columnar second connecting portion 152 is provided so as to project forward (in the negative direction of the Y axis).
  • the second connecting portion 152 is connected to the magnet holder 146 of the magnet unit 140, so that the magnet unit 140 swings in the left-right direction (X-axis direction) with the rotation of the lever 150.
  • a columnar third connecting portion 154 is provided at an intermediate position between the shaft hole 151 and the first connecting portion 153 so as to project forward (in the negative direction of the Y axis). There is.
  • the third connecting portion 154 is connected to the bobbin 134 of the coil unit 130, so that the coil unit 130 swings in the left-right direction (X-axis direction) with the rotation of the lever 150.
  • a groove 102E extending in the left-right direction (X-axis direction) is formed on the back bottom surface 102C (upper side of the shaft portion 102D) of the case 102.
  • the magnet unit 140 can swing in the left-right direction (X-axis direction) along the groove 102E.
  • a groove portion 102F extending in the left-right direction (X-axis direction) is formed on the back bottom surface 102C (lower side of the shaft portion 102D) of the case 102.
  • the magnet unit 140 can swing in the left-right direction (X-axis direction) along the groove 102F.
  • a groove portion 102G extending in the vertical direction (Z-axis direction) is formed on the inner bottom surface 102C (on the shaft portion 102D) of the case 102.
  • a lever 150 is rotatably arranged in the groove 102G. The rotation angle of the lever 150 is regulated by both the left and right inner wall surfaces of the groove 102G.
  • the terminals 161, 162 are provided side by side in the left-right direction on the upper side of the magnet unit 140.
  • the terminal 161 is provided on the left side
  • the terminal 162 is provided on the right side
  • the terminals 161, 162 are provided so as to project forward (Y-axis negative direction) from the inner bottom surface 102C of the internal space 102A of the case 102. It has internal terminals 161A and 162A, respectively.
  • the end portion 138A of the wire 138 is connected to the internal terminal 161A (see FIG. 2).
  • the end 138B of the wire 138 is connected to the internal terminal 162A (see FIG. 2).
  • the terminals 161, 162 have external terminals 161B and 162B, which are provided so as to project outward from the left and right side surfaces of the case 102, respectively.
  • the terminals 161, 162 are formed by using a metal plate.
  • FIG. 9 is a diagram showing a configuration in which the lever 150 in the power generation device 100 according to the embodiment is connected.
  • the center of the magnet holder 146 included in the magnet unit 140 in the left-right direction (X-axis direction) on the back surface (Y-axis positive side surface) is concave toward the front (Y-axis negative direction).
  • a notched portion 146B is formed.
  • the second connecting portion 152 of the lever 150 is fitted into the notch portion 146B.
  • the center of the bobbin 134 included in the coil unit 130 in the left-right direction (X-axis direction) on the back surface (Y-axis positive side surface) is concave toward the front (Y-axis negative direction).
  • a notch 134D notched in the is formed.
  • the third connecting portion 154 of the lever 150 is fitted into the notch portion 134D.
  • a through hole 111A penetrating in the front-rear direction is formed in the center of the weight 111 included in the vibrating body 110 in the left-right direction (X-axis direction).
  • the first connecting portion 153 of the lever 150 is fitted into the through hole 111A.
  • the through hole 111A has an elongated hole shape with the vertical direction as the longitudinal direction, and the horizontal width in the left-right direction is substantially the same as the diameter of the first connecting portion 153. be.
  • FIG. 10 is a front view showing a neutral state of the vibrating body 110 in the power generation device 100 according to the embodiment.
  • FIG. 11 is a front view showing a state in which the vibrating body 110 in the power generation device 100 according to the embodiment vibrates to the left.
  • FIG. 12 is a front view showing a state in which the vibrating body 110 in the power generation device 100 according to the embodiment vibrates to the right.
  • the cover 104 and the magnet holder 146 are not shown for ease of understanding.
  • the lever 150 is Y-axis negative. It rotates clockwise when viewed from the side.
  • the coil unit 130 swings to the left (X-axis negative direction)
  • the magnet unit 140 swings to the right (X-axis positive direction). That is, the coil unit 130 and the magnet unit 140 swing in opposite directions to each other.
  • the ratio of the lengths of the upper lever portion 150A and the lower lever portion 150B of the lever 150 is 1: 2
  • the amount of movement of the magnet unit 140 to the right is to the left of the vibrating body 110. It is about half of the amount of movement.
  • the coil unit 130 since the ratio of the lengths of the third connecting portion 154 to the first connecting portion 153 from the shaft hole 151 is 1: 2, the coil unit 130 simultaneously moves the moving body 110. Since the magnet unit 140 moves to the left with respect to the coil unit 130, the amount of movement to the right of the magnet unit 140 is substantially equal to the amount of movement to the left of the vibrating body 110.
  • the change in the magnetic flux (that is, the amount of generated current) inside the cylinders of the coils 132A and 132B is increased as compared with the configuration in which only the magnet unit 140 is swung. be able to.
  • the lever 150 when the vibrating body 110 vibrates to the right (X-axis positive direction) while elastically deforming the pair of elastic arm portions 124 in the power generation device 100, the lever 150 is negative on the Y-axis. It rotates counterclockwise when viewed from the side. Along with this, the coil unit 130 swings to the right (X-axis positive direction), and the magnet unit 140 swings to the left (X-axis negative direction). That is, the coil unit 130 and the magnet unit 140 swing in opposite directions to each other.
  • the ratio of the lengths of the upper lever portion 150A and the lower lever portion 150B of the lever 150 is 1: 2
  • the amount of movement of the magnet unit 140 to the left is to the right of the vibrating body 110. It is about half of the amount of movement.
  • the coil unit 130 since the ratio of the lengths of the third connecting portion 154 to the first connecting portion 153 from the shaft hole 151 is 1: 2, the coil unit 130 simultaneously moves the moving body 110. Since the magnet unit 140 moves to the right with respect to the coil unit 130, the movement amount to the left of the magnet unit 140 is substantially equal to the movement amount to the right of the vibrating body 110.
  • the change in the magnetic flux (that is, the amount of generated current) inside the cylinders of the coils 132A and 132B is increased as compared with the configuration in which only the magnet unit 140 is swung. be able to.
  • the coil unit 130 is provided between the vibrating body 110 and the rotating shaft portion (shaft hole 151), but the present invention is not limited to this, and the vibrating body 110 and the rotating shaft portion (shaft hole 151)
  • a magnet unit 140 may be provided between the two.
  • the vibrating body 110 is suspended by the elastic member 120, but the present invention is not limited to this, and the vibrating body 110 is supported by the elastic member 120 at least if the vibrating body 110 can vibrate in the left-right direction. It may be configured not to be suspended.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Reciprocating, Oscillating Or Vibrating Motors (AREA)

Abstract

In the present invention, a power generation device comprises: a lever that has a rotating shaft and is provided so as to be capable of rotating; a vibrating body that is linked to a first linking section of the lever, the vibrating body rotating the lever by vibrating in the horizontal direction; a magnet unit that is linked to a second linking section at one end side of the lever, the magnet unit oscillating in the horizontal direction according to the rotation of the lever; and a coil unit that is provided facing the magnet unit with the rotating shaft interposed therebetween across a gap, the coil unit being linked to a third linking section at the other-end side of the lever, and oscillating in the reverse direction relative to the magnet unit in the horizontal direction in concert with the rotation of the lever.

Description

発電装置Power generator
　本発明は、発電装置に関する。 The present invention relates to a power generation device.
　例えば、下記特許文献１には、二輪車の後輪に可動アームを介して上下棒を連結し、後輪の上下動に伴って上下棒をコイル内で上下動させることにより発電する技術が開示されている。 For example, Patent Document 1 below discloses a technique in which an upper and lower rod is connected to the rear wheel of a two-wheeled vehicle via a movable arm, and the upper and lower rods are moved up and down in a coil as the rear wheel moves up and down to generate electricity. ing.
実開昭６１－０７４２７７号公報Jitsukaisho 61-074277 Gazette
　しかしながら、上記特許文献１に開示されている技術では、発電量を増やすためには、上下棒の移動量を増やす必要があり、すなわち、発電装置を大型化することなく発電効率を高めることが困難である。 However, in the technique disclosed in Patent Document 1, in order to increase the amount of power generation, it is necessary to increase the amount of movement of the upper and lower bars, that is, it is difficult to increase the power generation efficiency without increasing the size of the power generation device. Is.
　一実施形態に係る発電装置は、回動軸部を有し、回動可能に設けられたレバーと、レバーの第１連結部に連結され、水平方向に振動することにより、レバーを回動させる振動体と、レバーの一端側の第２連結部に連結され、レバーの回動に伴って、水平方向に揺動する磁石ユニットと、回動軸部を間に挟んで磁石ユニットと対向して設けられ、レバーの他端側の第３連結部に連結され、レバーの回動に伴って、水平方向において磁石ユニットとは逆方向に揺動するコイルユニットとを備える。 The power generation device according to one embodiment has a rotating shaft portion, is connected to a rotatably provided lever and a first connecting portion of the lever, and rotates the lever by vibrating in the horizontal direction. A magnet unit that is connected to the vibrating body and the second connecting portion on one end side of the lever and swings horizontally as the lever rotates, and faces the magnet unit with a rotating shaft portion in between. It is provided with a coil unit which is connected to a third connecting portion on the other end side of the lever and swings in the direction opposite to the magnet unit in the horizontal direction as the lever rotates.
　一実施形態に係る発電装置によれば、発電装置の発電効率を高めることができる。 According to the power generation device according to the embodiment, the power generation efficiency of the power generation device can be improved.
一実施形態に係る発電装置の外観斜視図External perspective view of the power generation device according to one embodiment 一実施形態に係る発電装置（カバーが取り外された状態）の外観斜視図External perspective view of the power generation device (with the cover removed) according to the embodiment. 一実施形態に係る振動体および弾性部材の分解斜視図An exploded perspective view of a vibrating body and an elastic member according to an embodiment. 一実施形態に係るコイルユニットの外観斜視図External perspective view of the coil unit according to one embodiment 一実施形態に係るコイルユニットの分解斜視図An exploded perspective view of the coil unit according to the embodiment. 一実施形態に係る磁石ユニットの分解斜視図An exploded perspective view of the magnet unit according to the embodiment. 一実施形態に係る磁石ユニットの断面図Sectional drawing of the magnet unit which concerns on one Embodiment 一実施形態に係るケースの奥底部の構成を示す外観斜視図External perspective view showing the configuration of the deep bottom of the case according to one embodiment. 一実施形態に係る発電装置におけるレバーが連結される構成を示す図The figure which shows the structure which the lever is connected in the power generation apparatus which concerns on one Embodiment. 一実施形態に係る発電装置における振動体の中立状態を示す正面図である。It is a front view which shows the neutral state of the vibrating body in the power generation apparatus which concerns on one Embodiment. 一実施形態に係る発電装置における振動体が左方へ振動した状態を示す正面図である。It is a front view which shows the state which the vibrating body vibrates to the left in the power generation apparatus which concerns on one Embodiment. 一実施形態に係る発電装置における振動体が右方へ振動した状態を示す正面図Front view showing a state in which a vibrating body vibrates to the right in the power generation device according to one embodiment.
　以下、図面を参照して、一実施形態について説明する。 Hereinafter, one embodiment will be described with reference to the drawings.
　（発電装置１００の概要）
　図１は、一実施形態に係る発電装置１００の外観斜視図である。なお、以降の説明では、便宜上、図中Ｚ軸方向を、上下方向とし、図中Ｘ軸方向を、左右方向（「水平方向」の一例）とし、図中Ｙ軸方向を、前後方向とする。 (Outline of power generation device 100)
FIG. 1 is an external perspective view of the power generation device 100 according to the embodiment. In the following description, for convenience, the Z-axis direction in the figure is the vertical direction, the X-axis direction in the figure is the left-right direction (an example of "horizontal direction"), and the Y-axis direction in the figure is the front-back direction. ..
　図１に示す発電装置１００は、各種振動発生体に設置され、振動発生体からの振動が加わることにより、電磁誘導を用いて電力を発生する装置である。例えば、発電装置１００は、ベルトコンベヤのローラに設置されることにより、当該ローラの回転に伴って、電力を発生することができる。この電力は、例えば、蓄電池（図示省略）に蓄電され、通信モジュール（図示省略）によってローラの回転を示す信号を外部へ無線送信するために用いられる。 The power generation device 100 shown in FIG. 1 is a device that is installed in various vibration generators and generates electric power by using electromagnetic induction when vibrations from the vibration generators are applied. For example, by installing the power generation device 100 on a roller of a belt conveyor, it is possible to generate electric power as the roller rotates. This electric power is stored in a storage battery (not shown), and is used by a communication module (not shown) to wirelessly transmit a signal indicating the rotation of the roller to the outside.
　図１に示すように、発電装置１００は、ケース１０２およびカバー１０４を備える。発電装置１００は、互いに組み合わされたケース１０２およびカバー１０４によって、直方体形状の外形状をなす。 As shown in FIG. 1, the power generation device 100 includes a case 102 and a cover 104. The power generation device 100 has a rectangular parallelepiped outer shape due to the case 102 and the cover 104 combined with each other.
　ケース１０２は、内部空間１０２Ａの前面（Ｙ軸負側の面）が開口した、直方体形状を有する容器状の部材である。ケース１０２は、前方（Ｙ軸負側）からの平面視において、上下方向（Ｚ軸方向）を長手方向とする長方形状を有する。例えば、ケース１０２は、樹脂素材が用いられて形成される。ケース１０２の内部空間１０２Ａには、各構成部品が収容される。ケース１０２の上面は、凹状に湾曲しており、発電装置１００が取り付けられるローラの取付面に密着させることが可能となっている。 The case 102 is a container-shaped member having a rectangular parallelepiped shape in which the front surface (the surface on the negative side of the Y axis) of the internal space 102A is open. The case 102 has a rectangular shape with the vertical direction (Z-axis direction) as the longitudinal direction in a plan view from the front (Y-axis negative side). For example, the case 102 is formed by using a resin material. Each component is housed in the internal space 102A of the case 102. The upper surface of the case 102 is curved in a concave shape so that it can be brought into close contact with the mounting surface of the roller to which the power generation device 100 is mounted.
　カバー１０４は、ケース１０２の内部空間１０２Ａの前面を閉塞する、金属製且つ平板状の部材である。カバー１０４は、前方からの平面視において、ケース１０２の前面と略同形状（すなわち、上下方向（Ｚ軸方向）を長手方向とする長方形状）を有する。カバー１０４は、左右両縁部の各々に設けられた一対のフック１０４Ａを有する。カバー１０４は、一対のフック１０４Ａの各々が、ケース１０２の左右両側面の各々に形成された一対の爪部１０２Ｂの各々に係合することにより、ケース１０２の内部空間１０２Ａの前面を閉塞した状態で、ケース１０２に固定される。 The cover 104 is a metal and flat plate-shaped member that closes the front surface of the internal space 102A of the case 102. The cover 104 has substantially the same shape as the front surface of the case 102 (that is, a rectangular shape whose longitudinal direction is the vertical direction (Z-axis direction)) in a plan view from the front. The cover 104 has a pair of hooks 104A provided on each of the left and right edges. The cover 104 is in a state in which each of the pair of hooks 104A closes the front surface of the internal space 102A of the case 102 by engaging with each of the pair of claw portions 102B formed on the left and right side surfaces of the case 102. Then, it is fixed to the case 102.
　（発電装置１００の内部構成）
　図２は、一実施形態に係る発電装置１００（カバー１０４が取り外された状態）の外観斜視図である。図３は、一実施形態に係る振動体１１０および弾性部材１２０の分解斜視図である。図４は、一実施形態に係るコイルユニット１３０の外観斜視図である。図５は、一実施形態に係るコイルユニット１３０の分解斜視図である。図６は、一実施形態に係る磁石ユニット１４０の分解斜視図である。図７は、一実施形態に係る磁石ユニット１４０の断面図である。図８は、一実施形態に係るケース１０２の奥底部の構成を示す外観斜視図である。 (Internal configuration of power generation device 100)
FIG. 2 is an external perspective view of the power generation device 100 (with the cover 104 removed) according to the embodiment. FIG. 3 is an exploded perspective view of the vibrating body 110 and the elastic member 120 according to the embodiment. FIG. 4 is an external perspective view of the coil unit 130 according to the embodiment. FIG. 5 is an exploded perspective view of the coil unit 130 according to the embodiment. FIG. 6 is an exploded perspective view of the magnet unit 140 according to the embodiment. FIG. 7 is a cross-sectional view of the magnet unit 140 according to the embodiment. FIG. 8 is an external perspective view showing the configuration of the deep bottom portion of the case 102 according to the embodiment.
　図２および図３に示すように、発電装置１００は、振動体１１０、弾性部材１２０、コイルユニット１３０、磁石ユニット１４０、レバー１５０、および端子１６１，１６２を備える。 As shown in FIGS. 2 and 3, the power generation device 100 includes a vibrating body 110, an elastic member 120, a coil unit 130, a magnet unit 140, a lever 150, and terminals 161, 162.
　振動体１１０は、ケース１０２の内部の下部に設けられている。振動体１１０は、弾性部材１２０の一対の弾性腕部１２４によって、「水平方向」の一例である左右方向（Ｘ軸方向）に振動可能に上方（Ｚ軸正方向）から吊持されている。なお、「左右方向に振動する」の意味は、完全なる直線状に左右方向に移動することに限らず、本実施形態のように、一対の弾性腕部１２４によって吊持されていることによって、厳密には円弧を描くように左右方向に揺動することも含む。図２および図３に示すように、振動体１１０は、錘１１１、ホルダ１１２、およびカバー１１３を備える。錘１１１は、一定の重量を有する、直方体形状の部材である。ホルダ１１２は、前面（Ｙ軸負側の面）、上面（Ｚ軸正側の面）、および下面（Ｚ軸負側の面）が開口した、直方体形状を有する容器状の部材である。ホルダ１１２は、内部に錘１１１が収容されることにより、錘１１１を保持する。カバー１１３は、ホルダ１１２の前面を閉塞する、金属製且つ平板状の部材である。カバー１１３は、前方からの平面視において、ホルダ１１２の前面と略同形状である矩形状を有する。カバー１１３は、左右両縁部の各々に設けられた一対のフック１１３Ａを有する。ホルダ１１２は、一対のフック１１３Ａの各々が、ホルダ１１２の左右両側面の各々に形成された一対の爪部１１２Ａの各々に係合することにより、錘１１１が収容されたホルダ１１２の前面を閉塞した状態で、ホルダ１１２に固定される。振動体１１０は、発電装置１００に対して外部から振動が加えられたときに、弾性部材１２０の一対の弾性腕部１２４を弾性変形させつつ、左右方向（Ｘ軸方向）に振動する。振動体１１０は、レバー１５０の第１連結部１５３（図８参照）に連結されている。これにより、振動体１１０は、左右方向（Ｘ軸方向）への振動に伴って、レバー１５０を回動させることができる。なお、錘１１１は、振動体１１０の振動によって、コイルユニット１３０と磁石ユニット１４０との間の磁力による吸着力に打ち勝つことができるように、十分な質量を有することが好ましい。 The vibrating body 110 is provided at the lower part inside the case 102. The vibrating body 110 is suspended from above (Z-axis positive direction) so as to be vibrable in the left-right direction (X-axis direction), which is an example of the "horizontal direction", by a pair of elastic arm portions 124 of the elastic member 120. It should be noted that the meaning of "vibrating in the left-right direction" is not limited to the movement in the left-right direction in a perfect straight line, but is due to being suspended by a pair of elastic arm portions 124 as in the present embodiment. Strictly speaking, it also includes swinging in the left-right direction so as to draw an arc. As shown in FIGS. 2 and 3, the vibrating body 110 includes a weight 111, a holder 112, and a cover 113. The weight 111 is a rectangular parallelepiped member having a constant weight. The holder 112 is a container-shaped member having a rectangular parallelepiped shape with an open front surface (Y-axis negative side surface), an upper surface (Z-axis positive side surface), and a lower surface (Z-axis negative side surface). The holder 112 holds the weight 111 by accommodating the weight 111 inside. The cover 113 is a metal and flat plate-shaped member that closes the front surface of the holder 112. The cover 113 has a rectangular shape having substantially the same shape as the front surface of the holder 112 in a plan view from the front. The cover 113 has a pair of hooks 113A provided on each of the left and right edges. The holder 112 closes the front surface of the holder 112 in which the weight 111 is housed by engaging each of the pair of hooks 113A with each of the pair of claw portions 112A formed on the left and right side surfaces of the holder 112. In this state, it is fixed to the holder 112. When vibration is applied to the power generation device 100 from the outside, the vibrating body 110 vibrates in the left-right direction (X-axis direction) while elastically deforming the pair of elastic arm portions 124 of the elastic member 120. The vibrating body 110 is connected to the first connecting portion 153 (see FIG. 8) of the lever 150. As a result, the vibrating body 110 can rotate the lever 150 in accordance with the vibration in the left-right direction (X-axis direction). The weight 111 preferably has a sufficient mass so that the vibration of the vibrating body 110 can overcome the attractive force due to the magnetic force between the coil unit 130 and the magnet unit 140.
　弾性部材１２０は、弾性変形可能な金属製の部材である。弾性部材１２０は、固定部１２２および左右一対の弾性腕部１２４を備える。固定部１２２は、ケース１０２の内部の上部に固定される、平板状の部分である。すなわち、固定部１２２は、弾性部材１２０の固定端として機能する。一対の弾性腕部１２４は、固定部１２２の左右両端部の各々から下方に垂下して設けられている。一対の弾性腕部１２４は、上下方向（Ｚ軸方向）に延在する板バネ状の部分である。一対の弾性腕部１２４は、それらの下端部１２４Ａおよび連結部１２４Ｂ（すなわち、弾性部材１２０の揺動端）において、各々、錘１１１の側面とホルダ１１２の内側面、および錘１１１の底面とホルダ１１２の内底面との間の隙間に挿し込まれることにより、振動体１１０を吊持する。一対の弾性腕部１２４は、左右方向に弾性変形可能である。 The elastic member 120 is a metal member that can be elastically deformed. The elastic member 120 includes a fixing portion 122 and a pair of left and right elastic arm portions 124. The fixing portion 122 is a flat plate-shaped portion fixed to the upper part inside the case 102. That is, the fixing portion 122 functions as a fixed end of the elastic member 120. The pair of elastic arm portions 124 are provided so as to hang downward from each of the left and right end portions of the fixing portion 122. The pair of elastic arm portions 124 are leaf spring-shaped portions extending in the vertical direction (Z-axis direction). The pair of elastic arm portions 124 have a side surface of the weight 111 and an inner surface of the holder 112, and a bottom surface of the weight 111 and a holder, respectively, at their lower end portions 124A and the connecting portion 124B (that is, the swinging end of the elastic member 120). The vibrating body 110 is suspended by being inserted into the gap between the inner bottom surface of the 112 and the inner bottom surface of the 112. The pair of elastic arm portions 124 can be elastically deformed in the left-right direction.
　（コイルユニット１３０の構成）
　図２に示すように、コイルユニット１３０は、弾性部材１２０の一対の弾性腕部１２４の間において、振動体１１０の上側、且つ、磁石ユニット１４０の下側に設けられている。図４および図５に示すように、コイルユニット１３０は、コイル１３２Ａ、コイル１３２Ｂ、ボビン１３４、磁心１３６、およびワイヤ１３８を備える。 (Structure of coil unit 130)
As shown in FIG. 2, the coil unit 130 is provided on the upper side of the vibrating body 110 and on the lower side of the magnet unit 140 between the pair of elastic arm portions 124 of the elastic member 120. As shown in FIGS. 4 and 5, the coil unit 130 includes a coil 132A, a coil 132B, a bobbin 134, a magnetic core 136, and a wire 138.
　コイル１３２Ａおよびコイル１３２Ｂは、左右方向（Ｘ軸方向）に並べて配置されている。コイル１３２Ａは左側（Ｘ軸負側）に配置されており、コイル１３２Ｂは右側（Ｘ軸正側）に配置されている。コイル１３２Ａおよびコイル１３２Ｂは、ワイヤ１３８が多重に巻かれることによって、円柱状に形成されている。コイル１３２Ａおよびコイル１３２Ｂは、一本のワイヤ１３８によって双方が形成されることで、電気的に互いに直列に接続されている。ワイヤ１３８としては、例えば、銅線が用いられる。ワイヤ１３８の一方（Ｘ軸負側）の端部１３８Ａは、ボビン１３４の左側（Ｘ軸負側）の側面から上方に引き出されて、端子１６１に接続される（図２参照）。ワイヤ１３８の他方（Ｘ軸正側）の端部１３８Ｂは、ボビン１３４の右側（Ｘ軸負側）の側面から上方に引き出されて、端子１６２に接続される（図２参照）。 The coil 132A and the coil 132B are arranged side by side in the left-right direction (X-axis direction). The coil 132A is arranged on the left side (negative side of the X axis), and the coil 132B is arranged on the right side (positive side of the X axis). The coil 132A and the coil 132B are formed in a columnar shape by winding the wire 138 multiple times. The coil 132A and the coil 132B are both electrically connected in series by being formed by a single wire 138. As the wire 138, for example, a copper wire is used. One end (X-axis negative side) end 138A of the wire 138 is pulled upward from the left side (X-axis negative side) side surface of the bobbin 134 and connected to the terminal 161 (see FIG. 2). The other end (X-axis positive side) end 138B of the wire 138 is pulled upward from the right side (X-axis negative side) side surface of the bobbin 134 and connected to the terminal 162 (see FIG. 2).
　磁心１３６は、金属板から形成される部材である。磁心１３６は、第１磁心部１３６Ａ、第２磁心部１３６Ｂ、および接続部１３６Ｃを有する。第１磁心部１３６Ａおよび第２磁心部１３６Ｂは、上下方向（Ｚ軸方向）に直線状に延在する帯状の部分である。第１磁心部１３６Ａおよび第２磁心部１３６Ｂは、左右方向（Ｘ軸方向）に並べて配置されており、互いに平行である。第１磁心部１３６Ａは、コイル１３２Ａの筒内に挿通される。第２磁心部１３６Ｂは、コイル１３２Ｂの筒内に挿通される。接続部１３６Ｃは、左右方向（Ｘ軸方向）に直線状に延在する帯状の部分である。接続部１３６Ｃは、第１磁心部１３６Ａの下端部と第２磁心部１３６Ｂとを連結する。 The magnetic core 136 is a member formed of a metal plate. The magnetic core 136 has a first magnetic core portion 136A, a second magnetic core portion 136B, and a connecting portion 136C. The first magnetic core portion 136A and the second magnetic core portion 136B are strip-shaped portions extending linearly in the vertical direction (Z-axis direction). The first magnetic core portion 136A and the second magnetic core portion 136B are arranged side by side in the left-right direction (X-axis direction) and are parallel to each other. The first magnetic core portion 136A is inserted into the cylinder of the coil 132A. The second magnetic core portion 136B is inserted into the cylinder of the coil 132B. The connecting portion 136C is a strip-shaped portion extending linearly in the left-right direction (X-axis direction). The connecting portion 136C connects the lower end portion of the first magnetic core portion 136A and the second magnetic core portion 136B.
　ボビン１３４は、コイル１３２Ａ、コイル１３２Ｂ、および磁心１３６を保持する部材である。ボビン１３４は、コイル収容部１３４Ａ、コイル収容部１３４Ｂ、および磁心収容部１３４Ｃを有する。コイル収容部１３４Ａは、コイル１３２Ａの外形状（すなわち、円筒状）に応じた形状を有する前方（Ｙ軸負方向）が開口した空間であり、前方からコイル１３２Ａが収容される。コイル収容部１３４Ｂは、コイル１３２Ｂの外形状（すなわち、円筒状）に応じた形状を有する前方（Ｙ軸負方向）が開口した空間であり、前方からコイル１３２Ｂが収容される。磁心収容部１３４Ｃは、磁心１３６の接続部１３６Ｃの外形状に応じた形状を有する前方（Ｙ軸負方向）が開口した空間であり、前方から磁心１３６の接続部１３６Ｃが収容される。例えば、ボビン１３４は、樹脂素材が用いられて形成される。 The bobbin 134 is a member that holds the coil 132A, the coil 132B, and the magnetic core 136. The bobbin 134 has a coil accommodating portion 134A, a coil accommodating portion 134B, and a magnetic core accommodating portion 134C. The coil accommodating portion 134A is a space having a shape corresponding to the outer shape (that is, cylindrical shape) of the coil 132A and is open at the front (Y-axis negative direction), and the coil 132A is accommodated from the front. The coil accommodating portion 134B is a space having a shape corresponding to the outer shape (that is, cylindrical shape) of the coil 132B and is open at the front (Y-axis negative direction), and the coil 132B is accommodated from the front. The magnetic core accommodating portion 134C is a space having an open front (Y-axis negative direction) having a shape corresponding to the outer shape of the connecting portion 136C of the magnetic core 136, and accommodating the connecting portion 136C of the magnetic core 136 from the front. For example, the bobbin 134 is formed using a resin material.
　コイルユニット１３０は、上記構成によって電磁石として機能する。具体的には、コイルユニット１３０においては、コイルユニット１３０および磁石ユニット１４０の揺動に伴って、磁石ユニット１４０から磁心１３６（第１磁心部１３６Ａの上端部および第２磁心部１３６Ｂの上端部）に加えられる磁力が変化する。これにより、コイル１３２Ａの筒内部における第１磁心部１３６Ａの周囲の磁束と、コイル１３２Ｂの筒内部における第２磁心部１３６Ｂの周囲の磁束とが変化する。その結果、電磁誘導により、コイル１３２Ａおよびコイル１３２Ｂの各々において、電流が発生する。そして、コイル１３２Ａおよびコイル１３２Ｂの各々において発生した電流は、ワイヤ１３８を介して、端子１６１および端子１６２から出力される。 The coil unit 130 functions as an electromagnet according to the above configuration. Specifically, in the coil unit 130, the magnetic core 136 (the upper end portion of the first magnetic core portion 136A and the upper end portion of the second magnetic core portion 136B) from the magnet unit 140 as the coil unit 130 and the magnet unit 140 swing. The magnetic force applied to the changes. As a result, the magnetic flux around the first magnetic core portion 136A inside the cylinder of the coil 132A and the magnetic flux around the second magnetic core portion 136B inside the cylinder of the coil 132B change. As a result, an electric current is generated in each of the coil 132A and the coil 132B by electromagnetic induction. Then, the current generated in each of the coil 132A and the coil 132B is output from the terminal 161 and the terminal 162 via the wire 138.
　コイルユニット１３０は、レバー１５０の第３連結部１５４（図８参照）に連結されている。これにより、コイルユニット１３０は、振動体１１０の振動に伴ってレバー１５０が回動したとき、磁石ユニット１４０とともに、左右方向（Ｘ軸方向）へ揺動することができる。但し、コイルユニット１３０は、磁石ユニット１４０とは逆方向に揺動する。 The coil unit 130 is connected to the third connecting portion 154 (see FIG. 8) of the lever 150. As a result, the coil unit 130 can swing in the left-right direction (X-axis direction) together with the magnet unit 140 when the lever 150 rotates with the vibration of the vibrating body 110. However, the coil unit 130 swings in the direction opposite to that of the magnet unit 140.
　（磁石ユニット１４０の構成）
　図２に示すように、磁石ユニット１４０は、弾性部材１２０の一対の弾性腕部１２４の間において、コイルユニット１３０の上側に設けられている。図６に示すように、磁石ユニット１４０は、磁石１４２、ヨーク１４４、磁石ホルダ１４６、およびカバー１４８を備える。 (Structure of magnet unit 140)
As shown in FIG. 2, the magnet unit 140 is provided on the upper side of the coil unit 130 between the pair of elastic arm portions 124 of the elastic member 120. As shown in FIG. 6, the magnet unit 140 includes a magnet 142, a yoke 144, a magnet holder 146, and a cover 148.
　磁石１４２は、上下方向を長手方向とする柱状を有する。磁石１４２は、永久磁石（例えば、ネオジム磁石）が用いられる。磁石１４２は、上側の第１極性部１４２Ａと下側の第２極性部１４２Ｂとが、互いに異なる極性となるように、Ｎ極またはＳ極に着磁されている。磁石ユニット１４０において、磁石１４２は、左右方向（Ｘ軸方向）における中央よりも右側（Ｘ軸正側）に配置される。磁石１４２の下端面は、カバー１４８を間に挟んで、コイルユニット１３０の第２磁心部１３６Ｂの上端面と対向する。 The magnet 142 has a columnar shape whose longitudinal direction is the vertical direction. As the magnet 142, a permanent magnet (for example, a neodymium magnet) is used. The magnet 142 is magnetized at the north pole or the south pole so that the upper first polar portion 142A and the lower second polar portion 142B have different polarities from each other. In the magnet unit 140, the magnet 142 is arranged on the right side (right side of the X axis) of the center in the left-right direction (X-axis direction). The lower end surface of the magnet 142 faces the upper end surface of the second magnetic core portion 136B of the coil unit 130 with the cover 148 in between.
　ヨーク１４４は、金属板から形成される部材である。ヨーク１４４は、前方からの平面視において、左右方向（Ｘ軸方向）を長手方向とする長方形状を有する。ヨーク１４４の下側縁部の右端部は、磁石１４２の上端面と接触している。これにより、ヨーク１４４は、磁石１４２の第１極性部１４２Ａの極性（Ｎ極またはＳ極）に磁化される。ヨーク１４４の下側縁部の左端部には、下方に突出した突出部１４４Ａが設けられている。突出部１４４Ａの上下方向（Ｚ軸方向）の長さは、磁石１４２の上下方向の長さと同一である。突出部１４４Ａの下端面は、カバー１４８を間に挟んで、コイルユニット１３０の第１磁心部１３６Ａの上端面と対向する。 The yoke 144 is a member formed of a metal plate. The yoke 144 has a rectangular shape with the left-right direction (X-axis direction) as the longitudinal direction in a plan view from the front. The right end of the lower edge of the yoke 144 is in contact with the upper end surface of the magnet 142. As a result, the yoke 144 is magnetized to the polarity (N pole or S pole) of the first polar portion 142A of the magnet 142. A protruding portion 144A protruding downward is provided at the left end portion of the lower edge portion of the yoke 144. The length of the protrusion 144A in the vertical direction (Z-axis direction) is the same as the length of the magnet 142 in the vertical direction. The lower end surface of the protruding portion 144A faces the upper end surface of the first magnetic core portion 136A of the coil unit 130 with the cover 148 interposed therebetween.
　磁石ホルダ１４６は、磁石１４２およびヨーク１４４を保持する。例えば、磁石ホルダ１４６は、樹脂素材が用いられて形成される。図７に示すように、磁石ホルダ１４６の内部には、磁石１４２およびヨーク１４４の外形状と同形状の空洞部１４６Ｃが形成されている。磁石ホルダ１４６は、空洞部１４６Ｃに磁石１４２およびヨーク１４４が埋め込まれることにより、磁石１４２およびヨーク１４４を保持する。空洞部１４６Ｃは、ヨーク１４４の突出部１４４Ａが収容される部分と、磁石１４２が収容される部分とが、底面側に開口している。これにより、ヨーク１４４の突出部１４４Ａの下面と、磁石１４２の下面とが、磁石ホルダ１４６の底面から露出している。 The magnet holder 146 holds the magnet 142 and the yoke 144. For example, the magnet holder 146 is formed by using a resin material. As shown in FIG. 7, a cavity portion 146C having the same outer shape as the outer shape of the magnet 142 and the yoke 144 is formed inside the magnet holder 146. The magnet holder 146 holds the magnet 142 and the yoke 144 by embedding the magnet 142 and the yoke 144 in the cavity 146C. In the cavity portion 146C, a portion in which the protruding portion 144A of the yoke 144 is accommodated and a portion in which the magnet 142 is accommodated are open to the bottom surface side. As a result, the lower surface of the protruding portion 144A of the yoke 144 and the lower surface of the magnet 142 are exposed from the bottom surface of the magnet holder 146.
　カバー１４８は、磁石ホルダ１４６の底面を閉塞する、金属製且つ平板状の部材である。カバー１４８は、下方からの平面視において、磁石ホルダ１４６の底面と略同形状（すなわち、左右方向（Ｘ軸方向）を長手方向とする長方形状）を有する。カバー１４８は、左右両縁部の各々に設けられた一対のフック１４８Ａを有する。カバー１４８は、一対のフック１４８Ａの各々が、磁石ホルダ１４６の左右両側面の各々に形成された一対の爪部１４６Ａの各々に係合することにより、磁石ホルダ１４６の底面を閉塞した状態で、磁石ホルダ１４６に固定される。 The cover 148 is a metal and flat plate-shaped member that closes the bottom surface of the magnet holder 146. The cover 148 has substantially the same shape as the bottom surface of the magnet holder 146 (that is, a rectangular shape whose longitudinal direction is the left-right direction (X-axis direction)) in a plan view from below. The cover 148 has a pair of hooks 148A provided on each of the left and right edges. The cover 148 is in a state where the bottom surface of the magnet holder 146 is closed by each of the pair of hooks 148A engaging with each of the pair of claw portions 146A formed on the left and right side surfaces of the magnet holder 146. It is fixed to the magnet holder 146.
　磁石ユニット１４０は、レバー１５０の第２連結部１５２（図８参照）に連結されている。これにより、磁石ユニット１４０は、振動体１１０の振動に伴ってレバー１５０が回動したとき、コイルユニット１３０とともに、左右方向（Ｘ軸方向）へ揺動することができる。但し、磁石ユニット１４０は、コイルユニット１３０とは逆方向に揺動する。 The magnet unit 140 is connected to the second connecting portion 152 (see FIG. 8) of the lever 150. As a result, the magnet unit 140 can swing in the left-right direction (X-axis direction) together with the coil unit 130 when the lever 150 rotates with the vibration of the vibrating body 110. However, the magnet unit 140 swings in the direction opposite to that of the coil unit 130.
　レバー１５０は、上下方向（Ｚ軸方向）に延在する細長い棒状の部材である。図８に示すように、レバー１５０は、その上下方向（Ｚ軸方向）における中間部分に、前後方向（Ｙ軸方向）に貫通した円形の軸孔１５１（「回動軸部」の一例）を有する。レバー１５０は、軸孔１５１が、ケース１０２の奥底面１０２Ｃから前方（Ｙ軸負方向）に突出して設けられた円柱状の軸部１０２Ｄに嵌め込まれることにより、ケース１０２の奥底面１０２Ｃに対し、軸孔１５１を回転中心として、回動可能に設けられる。 The lever 150 is an elongated rod-shaped member extending in the vertical direction (Z-axis direction). As shown in FIG. 8, the lever 150 has a circular shaft hole 151 (an example of a “rotating shaft portion”) penetrating in the front-rear direction (Y-axis direction) in an intermediate portion in the vertical direction (Z-axis direction). Have. The lever 150 is fitted with a cylindrical shaft portion 102D provided so that the shaft hole 151 projects forward (Y-axis negative direction) from the back bottom surface 102C of the case 102, so that the lever 150 is fitted to the back bottom surface 102C of the case 102. It is rotatably provided with the shaft hole 151 as the center of rotation.
　図８に示すように、レバー１５０は、軸孔１５１よりも上側に延在する上側レバー部１５０Ａと、軸孔１５１よりも下側に延在する下側レバー部１５０Ｂとを有する。図８に示すように、下側レバー部１５０Ｂは、上側レバー部１５０Ａよりも、上下方向の長さが長くなっている。なお、本実施形態では、上側レバー部１５０Ａと下側レバー部１５０Ｂとの長さの比は、およそ１：２である。 As shown in FIG. 8, the lever 150 has an upper lever portion 150A extending above the shaft hole 151 and a lower lever portion 150B extending below the shaft hole 151. As shown in FIG. 8, the lower lever portion 150B has a longer length in the vertical direction than the upper lever portion 150A. In this embodiment, the ratio of the lengths of the upper lever portion 150A and the lower lever portion 150B is about 1: 2.
　下側レバー部１５０Ｂの下端部には、前方（Ｙ軸負方向）に突出して設けられた円柱状の第１連結部１５３が設けられている。第１連結部１５３は、振動体１１０に連結されることにより、振動体１１０の振動に伴って、レバー１５０を回動させる。上記のとおり、レバー１５０の上側レバー部１５０Ａと下側レバー部１５０Ｂとの長さの比がおよそ１：２であることから、てこの原理により、レバー１５０の振動に伴う、コイルユニット１３０と磁石ユニット１４０との吸着力を引き剥がす力は、およそ２倍となっている。 At the lower end of the lower lever portion 150B, a columnar first connecting portion 153 is provided so as to project forward (in the negative direction of the Y axis). The first connecting portion 153 is connected to the vibrating body 110 to rotate the lever 150 with the vibration of the vibrating body 110. As described above, since the ratio of the lengths of the upper lever portion 150A and the lower lever portion 150B of the lever 150 is approximately 1: 2, the coil unit 130 and the magnet are accompanied by the vibration of the lever 150 according to the principle of the lever. The force for peeling off the suction force with the unit 140 is approximately doubled.
　上側レバー部１５０Ａの上端部には、前方（Ｙ軸負方向）に突出して設けられた円柱状の第２連結部１５２が設けられている。第２連結部１５２は、磁石ユニット１４０の磁石ホルダ１４６に連結されることにより、レバー１５０の回動に伴って、磁石ユニット１４０を左右方向（Ｘ軸方向）に揺動させる。 At the upper end of the upper lever portion 150A, a columnar second connecting portion 152 is provided so as to project forward (in the negative direction of the Y axis). The second connecting portion 152 is connected to the magnet holder 146 of the magnet unit 140, so that the magnet unit 140 swings in the left-right direction (X-axis direction) with the rotation of the lever 150.
　下側レバー部１５０Ｂにおいて、軸孔１５１と第１連結部１５３との間の中間位置には、前方（Ｙ軸負方向）に突出して設けられた円柱状の第３連結部１５４が設けられている。第３連結部１５４は、コイルユニット１３０のボビン１３４に連結されることにより、レバー１５０の回動に伴って、コイルユニット１３０を左右方向（Ｘ軸方向）に揺動させる。 In the lower lever portion 150B, a columnar third connecting portion 154 is provided at an intermediate position between the shaft hole 151 and the first connecting portion 153 so as to project forward (in the negative direction of the Y axis). There is. The third connecting portion 154 is connected to the bobbin 134 of the coil unit 130, so that the coil unit 130 swings in the left-right direction (X-axis direction) with the rotation of the lever 150.
　なお、図８に示すように、ケース１０２の奥底面１０２Ｃ（軸部１０２Ｄの上側）には、左右方向（Ｘ軸方向）に延在する溝部１０２Ｅが形成されている。これにより、磁石ユニット１４０は、溝部１０２Ｅに沿って、左右方向（Ｘ軸方向）に揺動可能となっている。 As shown in FIG. 8, a groove 102E extending in the left-right direction (X-axis direction) is formed on the back bottom surface 102C (upper side of the shaft portion 102D) of the case 102. As a result, the magnet unit 140 can swing in the left-right direction (X-axis direction) along the groove 102E.
　また、図８に示すように、ケース１０２の奥底面１０２Ｃ（軸部１０２Ｄの下側）には、左右方向（Ｘ軸方向）に延在する溝部１０２Ｆが形成されている。これにより、磁石ユニット１４０は、溝部１０２Ｆに沿って、左右方向（Ｘ軸方向）に揺動可能となっている。 Further, as shown in FIG. 8, a groove portion 102F extending in the left-right direction (X-axis direction) is formed on the back bottom surface 102C (lower side of the shaft portion 102D) of the case 102. As a result, the magnet unit 140 can swing in the left-right direction (X-axis direction) along the groove 102F.
　また、図８に示すように、ケース１０２の奥底面１０２Ｃ（軸部１０２Ｄ上）には、上下方向（Ｚ軸方向）に延在する溝部１０２Ｇが形成されている。溝部１０２Ｇ内には、レバー１５０が回動可能に配置される。レバー１５０の回動角度は、溝部１０２Ｇの左右両方の内壁面によって規制される。 Further, as shown in FIG. 8, a groove portion 102G extending in the vertical direction (Z-axis direction) is formed on the inner bottom surface 102C (on the shaft portion 102D) of the case 102. A lever 150 is rotatably arranged in the groove 102G. The rotation angle of the lever 150 is regulated by both the left and right inner wall surfaces of the groove 102G.
　端子１６１，１６２は、磁石ユニット１４０の上側において、左右方向に並べて設けられている。端子１６１は左側に設けられており、端子１６２は右側に設けられており、端子１６１，１６２は、ケース１０２の内部空間１０２Ａの奥底面１０２Ｃから、前方（Ｙ軸負方向）に突出して設けられている、内部端子１６１Ａ，１６２Ａをそれぞれ有する。内部端子１６１Ａには、ワイヤ１３８の端部１３８Ａが接続される（図２参照）。内部端子１６２Ａには、ワイヤ１３８の端部１３８Ｂが接続される（図２参照）。また、端子１６１，１６２は、ケース１０２の左右両側面から外側に突出して設けられた、外部端子１６１Ｂ，１６２Ｂをそれぞれ有する。例えば、端子１６１，１６２は、金属板が用いられて形成される。 The terminals 161, 162 are provided side by side in the left-right direction on the upper side of the magnet unit 140. The terminal 161 is provided on the left side, the terminal 162 is provided on the right side, and the terminals 161, 162 are provided so as to project forward (Y-axis negative direction) from the inner bottom surface 102C of the internal space 102A of the case 102. It has internal terminals 161A and 162A, respectively. The end portion 138A of the wire 138 is connected to the internal terminal 161A (see FIG. 2). The end 138B of the wire 138 is connected to the internal terminal 162A (see FIG. 2). Further, the terminals 161, 162 have external terminals 161B and 162B, which are provided so as to project outward from the left and right side surfaces of the case 102, respectively. For example, the terminals 161, 162 are formed by using a metal plate.
　（レバー１５０が連結される構成）
　図９は、一実施形態に係る発電装置１００におけるレバー１５０が連結される構成を示す図である。 (Structure in which the lever 150 is connected)
FIG. 9 is a diagram showing a configuration in which the lever 150 in the power generation device 100 according to the embodiment is connected.
　図９に示すように、磁石ユニット１４０が備える磁石ホルダ１４６の背面（Ｙ軸正側の面）における左右方向（Ｘ軸方向）における中央には、前方（Ｙ軸負方向）に向かって凹状に切り欠かれた切欠部１４６Ｂが形成されている。切欠部１４６Ｂには、レバー１５０の第２連結部１５２が嵌め込まれる。 As shown in FIG. 9, the center of the magnet holder 146 included in the magnet unit 140 in the left-right direction (X-axis direction) on the back surface (Y-axis positive side surface) is concave toward the front (Y-axis negative direction). A notched portion 146B is formed. The second connecting portion 152 of the lever 150 is fitted into the notch portion 146B.
　また、図９に示すように、コイルユニット１３０が備えるボビン１３４の背面（Ｙ軸正側の面）における左右方向（Ｘ軸方向）における中央には、前方（Ｙ軸負方向）に向かって凹状に切り欠かれた切欠部１３４Ｄが形成されている。切欠部１３４Ｄには、レバー１５０の第３連結部１５４が嵌め込まれる。 Further, as shown in FIG. 9, the center of the bobbin 134 included in the coil unit 130 in the left-right direction (X-axis direction) on the back surface (Y-axis positive side surface) is concave toward the front (Y-axis negative direction). A notch 134D notched in the is formed. The third connecting portion 154 of the lever 150 is fitted into the notch portion 134D.
　また、図９に示すように、振動体１１０が備える錘１１１の左右方向（Ｘ軸方向）における中央には、前後方向に貫通する貫通孔１１１Ａが形成されている。貫通孔１１１Ａには、レバー１５０の第１連結部１５３が嵌め込まれる。図９に示すように、本実施形態では、貫通孔１１１Ａは、上下方向を長手方向とする長孔形状を有しており、左右方向の横幅は、第１連結部１５３の直径と略同一である。これにより、一実施形態に係る発電装置１００は、レバー１５０と錘１１１との間のガタツキを抑制しつつ、レバー１５０が錘１１１の揺動に追従できる。 Further, as shown in FIG. 9, a through hole 111A penetrating in the front-rear direction is formed in the center of the weight 111 included in the vibrating body 110 in the left-right direction (X-axis direction). The first connecting portion 153 of the lever 150 is fitted into the through hole 111A. As shown in FIG. 9, in the present embodiment, the through hole 111A has an elongated hole shape with the vertical direction as the longitudinal direction, and the horizontal width in the left-right direction is substantially the same as the diameter of the first connecting portion 153. be. As a result, in the power generation device 100 according to the embodiment, the lever 150 can follow the swing of the weight 111 while suppressing the rattling between the lever 150 and the weight 111.
　（一実施形態に係る発電装置１００の動作）
　次に、図１０～図１２を参照して、一実施形態に係る発電装置１００の動作について説明する。図１０は、一実施形態に係る発電装置１００における振動体１１０の中立状態を示す正面図である。図１１は、一実施形態に係る発電装置１００における振動体１１０が左方へ振動した状態を示す正面図である。図１２は、一実施形態に係る発電装置１００における振動体１１０が右方へ振動した状態を示す正面図である。なお、図１０～図１２では、理解を容易にするために、カバー１０４と磁石ホルダ１４６との図示を省略している。 (Operation of the power generation device 100 according to one embodiment)
Next, the operation of the power generation device 100 according to the embodiment will be described with reference to FIGS. 10 to 12. FIG. 10 is a front view showing a neutral state of the vibrating body 110 in the power generation device 100 according to the embodiment. FIG. 11 is a front view showing a state in which the vibrating body 110 in the power generation device 100 according to the embodiment vibrates to the left. FIG. 12 is a front view showing a state in which the vibrating body 110 in the power generation device 100 according to the embodiment vibrates to the right. In FIGS. 10 to 12, the cover 104 and the magnet holder 146 are not shown for ease of understanding.
　図１０に示すように、発電装置１００において振動体１１０が中立状態にあるときには、レバー１５０が垂直状態であるため、コイルユニット１３０および磁石ユニット１４０の各々が、左右方向（Ｘ軸方向）における中央（中心線ＣＬ上）に位置している。このとき、ヨーク１４４の突出部１４４Ａの下端面（「第１の着磁面」の一例）と第１磁心部１３６Ａの上端面（「第１の端面」の一例）とが互いに対向するとともに、磁石１４２の下端面（「第２の着磁面」の一例）と第２磁心部１３６Ｂの上端面（「第２の端面」の一例）とが互いに対向する。 As shown in FIG. 10, when the vibrating body 110 is in the neutral state in the power generation device 100, the lever 150 is in the vertical state, so that each of the coil unit 130 and the magnet unit 140 is centered in the left-right direction (X-axis direction). It is located (on the center line CL). At this time, the lower end surface of the protruding portion 144A of the yoke 144 (an example of the "first magnetizing surface") and the upper end surface of the first magnetic core portion 136A (an example of the "first end surface") face each other and are opposed to each other. The lower end surface of the magnet 142 (an example of the "second magnetizing surface") and the upper end surface of the second magnetic core portion 136B (an example of the "second end surface") face each other.
　そして、図１１に示すように、発電装置１００において振動体１１０が、一対の弾性腕部１２４を弾性変形させつつ、左方（Ｘ軸負方向）へ振動したとき、レバー１５０が、Ｙ軸負側から見て時計回りに回動する。これに伴い、コイルユニット１３０が左方（Ｘ軸負方向）へ揺動し、磁石ユニット１４０が右方（Ｘ軸正方向）へ揺動する。すなわち、コイルユニット１３０と磁石ユニット１４０とが互いに逆方向へ揺動する。これにより、ヨーク１４４の突出部１４４Ａの下端面と第１磁心部１３６Ａの上端面とが互いに離間するとともに、磁石１４２の下端面と第２磁心部１３６Ｂの上端面とが互いに離間する。その結果、コイル１３２Ａ，１３２Ｂの筒内部において磁束の変化が生じ、コイル１３２Ａおよびコイル１３２Ｂの各々において電流が発生することとなる。 Then, as shown in FIG. 11, when the vibrating body 110 vibrates to the left (X-axis negative direction) while elastically deforming the pair of elastic arm portions 124 in the power generation device 100, the lever 150 is Y-axis negative. It rotates clockwise when viewed from the side. Along with this, the coil unit 130 swings to the left (X-axis negative direction), and the magnet unit 140 swings to the right (X-axis positive direction). That is, the coil unit 130 and the magnet unit 140 swing in opposite directions to each other. As a result, the lower end surface of the protruding portion 144A of the yoke 144 and the upper end surface of the first magnetic core portion 136A are separated from each other, and the lower end surface of the magnet 142 and the upper end surface of the second magnetic core portion 136B are separated from each other. As a result, a change in magnetic flux occurs inside the cylinders of the coils 132A and 132B, and a current is generated in each of the coils 132A and 132B.
　ここで、レバー１５０の上側レバー部１５０Ａと下側レバー部１５０Ｂの長さの比が１：２であることから、磁石ユニット１４０の右方への移動量は、振動体１１０の左方への移動量の約半分である。しかしながら、一実施形態に係る発電装置１００は、軸孔１５１からの第３連結部１５４と第１連結部１５３の長さの比が１：２であることから、同時にコイルユニット１３０が移動体１１０の移動量の約半分、左方へ移動するため、コイルユニット１３０に対する磁石ユニット１４０の右方への移動量は、振動体１１０の左方への移動量と略等しくなる。したがって、一実施形態に係る発電装置１００によれば、磁石ユニット１４０のみを揺動させる構成と比較して、コイル１３２Ａ，１３２Ｂの筒内部における磁束の変化（すなわち、発生電流量）を、大きくすることができる。 Here, since the ratio of the lengths of the upper lever portion 150A and the lower lever portion 150B of the lever 150 is 1: 2, the amount of movement of the magnet unit 140 to the right is to the left of the vibrating body 110. It is about half of the amount of movement. However, in the power generation device 100 according to the embodiment, since the ratio of the lengths of the third connecting portion 154 to the first connecting portion 153 from the shaft hole 151 is 1: 2, the coil unit 130 simultaneously moves the moving body 110. Since the magnet unit 140 moves to the left with respect to the coil unit 130, the amount of movement to the right of the magnet unit 140 is substantially equal to the amount of movement to the left of the vibrating body 110. Therefore, according to the power generation device 100 according to the embodiment, the change in the magnetic flux (that is, the amount of generated current) inside the cylinders of the coils 132A and 132B is increased as compared with the configuration in which only the magnet unit 140 is swung. be able to.
　また、図１２に示すように、発電装置１００において振動体１１０が、一対の弾性腕部１２４を弾性変形させつつ、右方（Ｘ軸正方向）へ振動したとき、レバー１５０が、Ｙ軸負側から見て反時計回りに回動する。これに伴い、コイルユニット１３０が右方（Ｘ軸正方向）へ揺動し、磁石ユニット１４０が左方（Ｘ軸負方向）へ揺動する。すなわち、コイルユニット１３０と磁石ユニット１４０とが互いに逆方向へ揺動する。これにより、ヨーク１４４の突出部１４４Ａの下端面と第１磁心部１３６Ａの上端面とが互いに離間するとともに、磁石１４２の下端面と第２磁心部１３６Ｂの上端面とが互いに離間する。その結果、コイル１３２Ａ，１３２Ｂの筒内部において磁束の変化が生じ、コイル１３２Ａおよびコイル１３２Ｂの各々において電流が発生することとなる。 Further, as shown in FIG. 12, when the vibrating body 110 vibrates to the right (X-axis positive direction) while elastically deforming the pair of elastic arm portions 124 in the power generation device 100, the lever 150 is negative on the Y-axis. It rotates counterclockwise when viewed from the side. Along with this, the coil unit 130 swings to the right (X-axis positive direction), and the magnet unit 140 swings to the left (X-axis negative direction). That is, the coil unit 130 and the magnet unit 140 swing in opposite directions to each other. As a result, the lower end surface of the protruding portion 144A of the yoke 144 and the upper end surface of the first magnetic core portion 136A are separated from each other, and the lower end surface of the magnet 142 and the upper end surface of the second magnetic core portion 136B are separated from each other. As a result, a change in magnetic flux occurs inside the cylinders of the coils 132A and 132B, and a current is generated in each of the coils 132A and 132B.
　ここで、レバー１５０の上側レバー部１５０Ａと下側レバー部１５０Ｂの長さの比が１：２であることから、磁石ユニット１４０の左方への移動量は、振動体１１０の右方への移動量の約半分である。しかしながら、一実施形態に係る発電装置１００は、軸孔１５１からの第３連結部１５４と第１連結部１５３の長さの比が１：２であることから、同時にコイルユニット１３０が移動体１１０の移動量の約半分、右方へ移動するため、コイルユニット１３０に対する磁石ユニット１４０の左方への移動量は、振動体１１０の右方への移動量と略等しくなる。したがって、一実施形態に係る発電装置１００によれば、磁石ユニット１４０のみを揺動させる構成と比較して、コイル１３２Ａ，１３２Ｂの筒内部における磁束の変化（すなわち、発生電流量）を、大きくすることができる。 Here, since the ratio of the lengths of the upper lever portion 150A and the lower lever portion 150B of the lever 150 is 1: 2, the amount of movement of the magnet unit 140 to the left is to the right of the vibrating body 110. It is about half of the amount of movement. However, in the power generation device 100 according to the embodiment, since the ratio of the lengths of the third connecting portion 154 to the first connecting portion 153 from the shaft hole 151 is 1: 2, the coil unit 130 simultaneously moves the moving body 110. Since the magnet unit 140 moves to the right with respect to the coil unit 130, the movement amount to the left of the magnet unit 140 is substantially equal to the movement amount to the right of the vibrating body 110. Therefore, according to the power generation device 100 according to the embodiment, the change in the magnetic flux (that is, the amount of generated current) inside the cylinders of the coils 132A and 132B is increased as compared with the configuration in which only the magnet unit 140 is swung. be able to.
　以上、本発明の一実施形態について詳述したが、本発明はこれらの実施形態に限定されるものではなく、特許請求の範囲に記載された本発明の要旨の範囲内において、種々の変形又は変更が可能である。 Although one embodiment of the present invention has been described in detail above, the present invention is not limited to these embodiments, and various modifications or modifications are made within the scope of the gist of the present invention described in the claims. It can be changed.
　例えば、実施形態では、振動体１１０と回転軸部（軸孔１５１）との間にコイルユニット１３０が設けられているが、これに限らず、振動体１１０と回転軸部（軸孔１５１）との間に磁石ユニット１４０が設けられてもよい。 For example, in the embodiment, the coil unit 130 is provided between the vibrating body 110 and the rotating shaft portion (shaft hole 151), but the present invention is not limited to this, and the vibrating body 110 and the rotating shaft portion (shaft hole 151) A magnet unit 140 may be provided between the two.
　また、例えば、実施形態では、振動体１１０が弾性部材１２０によって吊持されているが、これに限らず、少なくとも振動体１１０が左右方向に振動可能であれば、振動体１１０が弾性部材１２０によって吊持されていない構成であってもよい。 Further, for example, in the embodiment, the vibrating body 110 is suspended by the elastic member 120, but the present invention is not limited to this, and the vibrating body 110 is supported by the elastic member 120 at least if the vibrating body 110 can vibrate in the left-right direction. It may be configured not to be suspended.
　本国際出願は、２０２０年６月５日に出願した日本国特許出願第２０２０－０９８８７６号に基づく優先権を主張するものであり、当該出願の全内容を本国際出願に援用する。 This international application claims priority based on Japanese Patent Application No. 2020-098876 filed on June 5, 2020, and the entire contents of this application will be incorporated into this international application.
　１００　発電装置
　１０２　ケース
　１０２Ａ　内部空間
　１０２Ｂ　爪部
　１０２Ｃ　奥底面
　１０２Ｄ　軸部
　１０２Ｅ，１０２Ｆ，１０２Ｇ　溝部
　１０４　カバー
　１０４Ａ　フック
　１１０　振動体
　１１１　錘
　１１１Ａ　貫通孔
　１１２　ホルダ
　１１２Ａ　爪部
　１１３　カバー
　１１３Ａ　フック
　１２０　弾性部材
　１２２　固定部
　１２４　弾性腕部
　１２４Ａ　下端部
　１２４Ｂ　連結部
　１３０　コイルユニット
　１３２Ａ，１３２Ｂ　コイル
　１３４　ボビン
　１３４Ａ，１３４Ｂ　コイル収容部
　１３４Ｃ　磁心収容部
　１３４Ｄ　切欠部
　１３６　磁心
　１３６Ａ　第１磁心部
　１３６Ｂ　第２磁心部
　１３６Ｃ　接続部
　１３８　ワイヤ
　１３８Ａ、１３８Ｂ　端部
　１４０　磁石ユニット
　１４２　磁石
　１４２Ａ　第１極性部
　１４２Ｂ　第２極性部
　１４４　ヨーク
　１４４Ａ　突出部
　１４６　磁石ホルダ
　１４６Ａ　爪部
　１４６Ｂ　切欠部
　１４６Ｃ　空洞部
　１４８　カバー
　１４８Ａ　フック
　１５０　レバー
　１５０Ａ　上側レバー部
　１５０Ｂ　下側レバー部
　１５１　軸孔
　１５２　第２連結部
　１５３　第１連結部
　１５４　第３連結部
　１６１，１６２　端子
　１６１Ａ，１６２Ａ　内部端子
　１６１Ｂ，１６２Ｂ　外部端子 100 Power generator 102 Case 102A Internal space 102B Claw 102C Back bottom 102D Shaft 102E, 102F, 102G Groove 104 Cover 104A Hook 110 Vibrator 111 Weight 111A Through hole 112 Holder 112A Claw 113 Cover 113A Hook 120 Elastic member 122 124 Elastic arm 124A Lower end 124B Connecting part 130 Coil unit 132A, 132B Coil 134 Bobbin 134A, 134B Coil accommodating part 134C Magnetic core accommodating part 134D Notch 136 Magnetic core 136A 1st magnetic core 136B 2nd magnetic core 136C Connection part 138 138B End 140 Magnet Unit 142 Magnet 142A 1st Polarity 142B 2nd Polarity 144 York 144A Protruding 146 Magnet Holder 146A Claw 146B Notch 146C Cavity 148 Cover 148A Hook 150 Lever 150A Upper Lever 150B Part 151 Shaft hole 152 2nd connecting part 153 1st connecting part 154 3rd connecting part 161, 162 Terminals 161A, 162A Internal terminals 161B, 162B External terminals

Claims (4)

  1. 　回動軸部を有し、回動可能に設けられたレバーと、
    　前記レバーの第１連結部に連結され、水平方向に振動することにより、前記レバーを回動させる振動体と、
    　前記レバーの一端側の第２連結部に連結され、前記レバーの回動に伴って、前記水平方向に揺動する磁石ユニットと、
    　前記回動軸部を間に挟んで前記磁石ユニットと対向して設けられ、前記レバーの他端側の第３連結部に連結され、前記レバーの回動に伴って、前記水平方向において前記磁石ユニットとは逆方向に揺動するコイルユニットと
    　を備えることを特徴とする発電装置。     A lever that has a rotating shaft and is rotatably provided,
    A vibrating body that is connected to the first connecting portion of the lever and vibrates in the horizontal direction to rotate the lever.
    A magnet unit that is connected to a second connecting portion on one end side of the lever and swings in the horizontal direction as the lever rotates.
    The magnet is provided so as to face the magnet unit with the rotation shaft portion in between, and is connected to a third connecting portion on the other end side of the lever, and the magnet is connected in the horizontal direction as the lever rotates. A power generation device including a coil unit that swings in the direction opposite to the unit.
  2. 　前記レバーは、
    　前記第２連結部または前記第３連結部から延設された部分の端部に、前記第１連結部が設けられている
    　ことを特徴とする請求項１に記載の発電装置。     The lever
    The power generation device according to claim 1, wherein the first connecting portion is provided at an end portion of the second connecting portion or a portion extending from the third connecting portion.
  3. 　前記振動体を弾性腕部によって吊持する弾性部材
    　をさらに備えることを特徴とする請求項１または２に記載の発電装置。     The power generation device according to claim 1 or 2, further comprising an elastic member for suspending the vibrating body by an elastic arm portion.
  4. 　前記磁石ユニットは、
    　第１の極性によって着磁された第１の着磁面と、第２の極性によって着磁された第２の着磁面とが、前記水平方向に並べて配置されており、
    　前記コイルユニットは、
    　コイルと、
    　前記コイルを貫通する磁心とを備え、
    　前記磁心は、
    　前記第１の着磁面と対向する第１の端面と、
    　前記第２の着磁面と対向する第２の端面とを有する
    　ことを特徴とする請求項１から３のいずれか一項に記載の発電装置。     The magnet unit is
    The first magnetized surface magnetized by the first polarity and the second magnetized surface magnetized by the second polarity are arranged side by side in the horizontal direction.
    The coil unit is
    With the coil
    With a magnetic core penetrating the coil
    The magnetic core is
    The first end surface facing the first magnetized surface and the first end surface,
    The power generation device according to any one of claims 1 to 3, further comprising a second end surface facing the second magnetized surface.
PCT/JP2021/019605 2020-06-05 2021-05-24 Power generation device WO2021246223A1 (en)

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JP2018123821A (en) * 2017-02-03 2018-08-09 後藤　良洋 Swinging wind power generating device

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