power generation device

Abstract

The power generation device includes a shaft having a rotation shaft portion and configured to be rotatable, a vibration body coupled to a first coupling portion of the shaft and configured to rotate the shaft by vibrating in a horizontal direction, a magnet unit coupled to a second coupling portion of one end side of the shaft and configured to swing in the horizontal direction as the shaft rotates, and a coil unit disposed opposite the magnet unit in a manner of sandwiching the rotation shaft portion therebetween, coupled to a third coupling portion of the other end side of the shaft, and configured to swing in the horizontal direction in a direction opposite the magnet unit as the shaft rotates.

Description

Technical Field

[0001] This invention relates to a power generation device. Background Technology

[0002] For example, Patent Document 1 discloses a technology in which upper and lower rods are connected to the rear wheel of a two-wheeled vehicle via a movable arm, and the upper and lower rods move up and down within a coil as the rear wheel moves up and down, thereby generating electricity.

[0003] Prior art literature

[0004] Patent documents

[0005] Patent Document 1: Japanese Utility Model Application Publication No. 61-074277 Summary of the Invention

[0006] The problem that the invention aims to solve

[0007] However, in the technology disclosed in the aforementioned patent document 1, in order to increase the power generation, it is necessary to increase the amount of movement of the upper and lower bars, that is, it is difficult to improve the power generation efficiency without making the power generation device larger.

[0008] Solution for solving the problem

[0009] One embodiment of the power generation device includes: a rod having a rotating shaft and configured to rotate; a vibrating body connected to a first connecting portion of the rod and causing the rod to rotate by vibrating in the horizontal direction; a magnet unit connected to a second connecting portion at one end of the rod and oscillating in the horizontal direction as the rod rotates; and a coil unit disposed opposite to the magnet unit such that the rotating shaft is sandwiched in the middle, connected to a third connecting portion at the other end of the rod, and oscillating in the horizontal direction in the opposite direction to the magnet unit as the rod rotates.

[0010] Invention Effects

[0011] According to one embodiment of the power generation device, the power generation efficiency of the power generation device can be improved. Attached Figure Description

[0012] Figure 1 This is a perspective view of the power generation device according to one embodiment.

[0013] Figure 2 This is a perspective view of the power generation device (with the cover removed) according to one embodiment.

[0014] Figure 3 This is an exploded perspective view of the vibrating body and elastic component according to one embodiment.

[0015] Figure 4 This is a perspective view of the coil unit according to one embodiment.

[0016] Figure 5 This is an exploded perspective view of a coil unit according to one embodiment.

[0017] Figure 6 This is an exploded perspective view of a magnet unit according to one embodiment.

[0018] Figure 7 This is a cross-sectional view of a magnet unit according to one embodiment.

[0019] Figure 8 This is a perspective view showing the structure of the inner bottom of the housing according to one embodiment.

[0020] Figure 9 This is a diagram showing the structure of the power supply rod connection in a power generation device according to one embodiment.

[0021] Figure 10 This is a front view showing the neutral state of the vibrating body in a power generation device according to one embodiment.

[0022] Figure 11 This is a front view showing the state of the vibrator in a power generation device according to one embodiment vibrating to the left.

[0023] Figure 12 This is a front view showing the state of the vibrator in a power generation device according to one embodiment vibrating to the right. Detailed Implementation

[0024] Hereinafter, one embodiment will be described with reference to the accompanying drawings.

[0025] (Overview of power generation unit 100)

[0026] Figure 1 This is a perspective view of the power generation device 100 according to one embodiment. It should be noted that, for convenience, in the following description, the Z-axis direction in the figure is set as the up-down direction, the X-axis direction in the figure is set as the left-right direction (an example of the "horizontal direction"), and the Y-axis direction in the figure is set as the front-back direction.

[0027] Figure 1 The power generation device 100 shown is installed on various vibration generators and is a device that generates electricity by electromagnetic induction through vibration applied from the vibration generator. For example, the power generation device 100 can generate electricity as the roller of a belt conveyor rotates. This electricity is stored, for example, in a battery (not shown) and used to wirelessly transmit a signal indicating the rotation of the roller to the outside via a communication module (not shown).

[0028] like Figure 1As shown, the power generation device 100 includes a housing 102 and a cover 104. The power generation device 100 forms a cuboid shape by combining the housing 102 and the cover 104.

[0029] The housing 102 is a container-shaped component with a cuboid shape, open at the front (the side facing the negative Y-axis) of the internal space 102A. Viewed from the front (negative Y-axis), the housing 102 has a rectangular shape with its length along the vertical direction (Z-axis direction). For example, the housing 102 is formed of resin material. Various component parts are housed within the internal space 102A of the housing 102. The upper surface of the housing 102 is curved into a concave shape, allowing it to fit snugly against the mounting surface of the roller on which the power generation device 100 is mounted.

[0030] The cover 104 is a flat, metal component that encloses the front of the internal space 102A of the housing 102. Viewed from the front, the cover 104 has a shape approximately the same as the front surface of the housing 102 (i.e., a rectangular shape with its length along the vertical direction (Z-axis)). The cover 104 has a pair of hooks 104A respectively located on its left and right edges. Each of the hooks 104A engages with a pair of claws 102B formed on the left and right sides of the housing 102, thereby fixing the cover 104 to the housing 102 in a state that encloses the front of the internal space 102A.

[0031] (Internal structure of the power generation device 100)

[0032] Figure 2 This is a perspective view of the power generation device 100 according to one embodiment (with the cover 104 removed). Figure 3 This is an exploded perspective view of the vibrating body 110 and the elastic member 120 according to one embodiment. Figure 4 This is a perspective view of the coil unit 130 according to one embodiment. Figure 5 This is an exploded perspective view of a coil unit 130 according to one embodiment. Figure 6 This is an exploded perspective view of a magnet unit 140 according to one embodiment. Figure 7 This is a cross-sectional view of a magnet unit 140 according to one embodiment. Figure 8 This is a perspective view showing the structure of the inner bottom of the housing 102 according to one embodiment.

[0033] like Figure 2 and Figure 3 As shown, the power generation device 100 includes a vibrating body 110, an elastic member 120, a coil unit 130, a magnet unit 140, a rod 150, and terminals 161 and 162.

[0034] The vibrator 110 is disposed in the lower part of the interior of the housing 102. The vibrator 110 is suspended from above (positive Z-axis direction) by a pair of elastic arms 124 of the elastic member 120, enabling it to vibrate in the left-right direction (X-axis direction), an example of the "horizontal direction". It should be noted that "vibrating in the left-right direction" is not limited to moving in a completely straight line in the left-right direction, but may also include, as in this embodiment, oscillating in the left-right direction, strictly speaking, in an arc-like manner, by being suspended and held using a pair of elastic arms 124. Figure 2 and Figure 3 As shown, the vibrator 110 includes a weight 111, a cage 112, and a cover 113. The weight 111 is a cuboid-shaped component with a certain weight. The cage 112 is a container-shaped component with a cuboid shape, open on its front surface (the face on the negative side of the Y-axis), upper surface (the face on the positive side of the Z-axis), and lower surface (the face on the negative side of the Z-axis). The cage 112 holds the weight 111 by housing it inside. The cover 113 is a flat, metal component that closes the front surface of the cage 112. Viewed from the front, the cover 113 has a rectangular shape that is approximately the same as the front surface of the cage 112. The cover 113 has a pair of hooks 113A respectively provided on its left and right edges. The retainer 112 is secured to the retainer 112 in a closed state by engaging with a pair of hooks 113A on each of the left and right sides of the retainer 112 respectively, thereby closing the front surface of the retainer 112 containing the weight 111. When vibration is applied to the generator 100 from the outside, the vibrator 110 causes the pair of elastic arms 124 of the elastic member 120 to elastically deform and vibrate in the left-right direction (X-axis direction). The first connection 153 between the vibrator 110 and the rod 150 (see reference) Figure 8 The vibrating body 110 is connected to the rod 150, which rotates as the vibrating body 110 vibrates in the left-right direction (X-axis direction). It should be noted that the weight 111 preferably has sufficient mass to overcome the attractive force generated by the magnetic force between the coil unit 130 and the magnet unit 140 through the vibration of the vibrating body 110.

[0035] The elastic member 120 is a metal component capable of elastic deformation. The elastic member 120 includes a fixing portion 122 and a pair of left and right elastic arms 124. The fixing portion 122 is a flat plate-shaped portion fixed to the upper part of the interior of the housing 102. That is, the fixing portion 122 functions as the fixing end of the elastic member 120. The pair of elastic arms 124 are configured to hang downwards from the left and right ends of the fixing portion 122, respectively. The pair of elastic arms 124 are leaf spring-like portions extending in the vertical direction (Z-axis direction). The lower ends 124A and connecting portions 124B (i.e., the swing ends of the elastic member 120) of the pair of elastic arms 124 are respectively inserted into the gaps between the side surface of the weight 111 and the inner surface of the holder 112, and between the bottom surface of the weight 111 and the inner bottom surface of the holder 112, thereby suspending and holding the vibrator 110. The pair of elastic arms 124 are capable of elastic deformation in the left-right direction.

[0036] (Structure of coil unit 130)

[0037] like Figure 2 As shown, the coil unit 130 is disposed between a pair of elastic arms 124 of the elastic member 120, above the vibrator 110 and below the magnet unit 140. Figure 4 and Figure 5 As shown, the coil unit 130 includes a coil 132A, a coil 132B, a coil frame 134, a magnetic core 136, and a wire 138.

[0038] Coils 132A and 132B are arranged in a left-right (X-axis) direction. Coil 132A is located on the left (negative X-axis side), and coil 132B is located on the right (positive X-axis side). Coils 132A and 132B are formed into a cylindrical shape by multiple windings of wire 138. Coils 132A and 132B are electrically connected in series by being formed from a single wire 138. For example, copper wire is used as the wire 138. One end 138A of the wire 138 (negative X-axis side) extends upward from the left side (negative X-axis side) of the coil holder 134 and connects to terminal 161 (see reference). Figure 2 The other end 138B of the conductor 138 (positive X-axis side) extends upward from the right side (negative X-axis side) of the coil holder 134 and connects to the terminal 162 (see reference). Figure 2 ).

[0039] The magnetic core 136 is a component formed from 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 parallel to each other in the horizontal direction (X-axis direction). The first magnetic core portion 136A passes through the tube of the coil 132A. The second magnetic core portion 136B passes through the tube of the coil 132B. The connecting portion 136C is a strip-shaped portion extending linearly in the horizontal direction (X-axis direction). The connecting portion 136C connects the lower end of the first magnetic core portion 136A and the second magnetic core portion 136B.

[0040] The coil holder 134 is a component that holds the coils 132A and 132B, and the magnetic core 136. The coil holder 134 has a coil housing portion 134A, a coil housing portion 134B, and a magnetic core housing portion 134C. The coil housing portion 134A is a space with a shape corresponding to the outer shape (i.e., cylindrical) of the coil 132A, open at the front (negative Y-axis direction), and houses the coil 132A from the front. The coil housing portion 134B is a space with a shape corresponding to the outer shape (i.e., cylindrical) of the coil 132B, open at the front (negative Y-axis direction), and houses the coil 132B from the front. The magnetic core housing portion 134C is a space with a shape corresponding to the outer shape of the connecting portion 136C of the magnetic core 136, open at the front (negative Y-axis direction), and houses the connecting portion 136C of the magnetic core 136 from the front. For example, the coil holder 134 is formed using a resin material.

[0041] The coil unit 130 functions as an electromagnet through the aforementioned structure. Specifically, in the coil unit 130, as the coil unit 130 and the magnet unit 140 oscillate, the magnetic force applied by the magnet unit 140 to the magnetic core 136 (the upper end of the first magnetic core portion 136A and the upper end of the second magnetic core portion 136B) changes. This causes changes in the magnetic flux around the first magnetic core portion 136A inside the cylinder of coil 132A and around the second magnetic core portion 136B inside the cylinder of coil 132B. As a result, currents are generated in coil 132A and coil 132B respectively through electromagnetic induction. Furthermore, the currents generated in coil 132A and coil 132B are output from terminals 161 and 162 via wires 138.

[0042] The third connection 154 between coil unit 130 and rod 150 (see reference) Figure 8 The coil unit 130 is connected to the magnet unit 140. Thus, as the rod 150 rotates with the vibration of the vibrator 110, the coil unit 130 can swing together with the magnet unit 140 in the left-right direction (X-axis direction). However, the coil unit 130 swings in the opposite direction to the magnet unit 140.

[0043] (Structure of magnet unit 140)

[0044] like Figure 2 As shown, the magnet unit 140 is disposed above the coil unit 130 between a pair of elastic arms 124 of the elastic member 120. Figure 6 As shown, the magnet unit 140 includes a magnet 142, a yoke 144, a magnet holder 146, and a cover 148.

[0045] Magnet 142 is cylindrical with its length extending vertically. Magnet 142 is a permanent magnet (e.g., a neodymium magnet). Magnet 142 is magnetized to have either an N pole or an S pole, such that the upper first polarity portion 142A and the lower second polarity portion 142B have different polarities. In magnet unit 140, magnet 142 is positioned to the right (positive X-axis side) of the center in the left-right direction (X-axis direction). The lower end face of magnet 142 faces the upper end face of the second magnetic core portion 136B of coil unit 130 such that it sandwiches cover 148 in the middle.

[0046] The magnetic yoke 144 is a component formed from a metal plate. Viewed from the front, the magnetic yoke 144 has a rectangular shape with its length along the left-right direction (X-axis direction). The right end of the lower edge of the magnetic yoke 144 contacts the upper end face of the magnet 142. Thus, the magnetic yoke 144 is magnetized to the polarity (N pole or S pole) of the first polarity portion 142A of the magnet 142. A downwardly protruding portion 144A is provided at the left end of the lower edge of the magnetic yoke 144. The vertical length (Z-axis direction) of the protruding portion 144A is the same as the vertical length of the magnet 142. The lower end face of the protruding portion 144A faces the upper end face of the first magnetic core portion 136A of the coil unit 130 in such a way that the cover 148 is sandwiched in the middle.

[0047] The magnet retainer 146 holds the magnet 142 and the yoke 144. For example, the magnet retainer 146 is formed using a resin material. Figure 7 As shown, a cavity 146C with the same shape as the magnet 142 and yoke 144 is formed inside the magnet holder 146. The magnet holder 146 holds the magnet 142 and yoke 144 by embedding them in the cavity 146C. The portion of the cavity 146C that houses the protrusion 144A of the yoke 144 and the portion that houses the magnet 142 are open on the bottom side. As a result, the lower surface of the protrusion 144A of the yoke 144 and the lower surface of the magnet 142 are exposed from the bottom surface of the magnet holder 146.

[0048] Cover 148 is a flat, metal component that encloses the bottom surface of magnet holder 146. Viewed from below, cover 148 has a shape approximately the same as the bottom surface of magnet holder 146 (i.e., a rectangular shape with its length along the left-right direction (X-axis)). Cover 148 has a pair of hooks 148A respectively located on its left and right edges. Cover 148 engages with a pair of claws 146A formed on the left and right sides of magnet holder 146 via the hooks 148A, thereby securing it to magnet holder 146 in a closed manner.

[0049] The second connection 152 between the magnet unit 140 and the rod 150 (see reference) Figure 8 The connection is made so that when the rod 150 rotates with the vibration of the vibrating body 110, the magnet unit 140 can swing together with the coil unit 130 in the left-right direction (X-axis direction). However, the magnet unit 140 swings in the opposite direction to the coil unit 130.

[0050] Rod 150 is a slender, rod-shaped component extending in the vertical direction (Z-axis direction). For example... Figure 8 As shown, the rod 150 has a circular shaft hole 151 (an example of a "rotating shaft") extending through in the front-back direction (Y-axis direction) at its middle portion in the vertical direction (Z-axis direction). By inserting the shaft hole 151 into a cylindrical shaft portion 102D that protrudes forward (negative Y-axis direction) from the inner bottom surface 102C of the housing 102, the rod 150 is configured to rotate about the shaft hole 151 about the inner bottom surface 102C of the housing 102.

[0051] like Figure 8 As shown, the rod 150 has an upper rod portion 150A extending upward from the shaft hole 151 and a lower rod portion 150B extending downward from the shaft hole 151. Figure 8 As shown, the vertical length of the lower rod portion 150B is longer than the vertical length of the upper rod portion 150A. It should be noted that in this embodiment, the length ratio of the upper rod portion 150A to the lower rod portion 150B is approximately 1:2.

[0052] A cylindrical first connecting portion 153 protruding forward (in the negative Y-axis direction) is provided at the lower end of the lower rod portion 150B. The first connecting portion 153 is connected to the vibrating body 110, thereby causing the rod 150 to rotate as the vibrating body 110 vibrates. As described above, since the length ratio of the upper rod portion 150A to the lower rod portion 150B of the rod 150 is approximately 1:2, according to this principle, the force that separates the attractive force between the coil unit 130 and the magnet unit 140 accompanying the vibration of the rod 150 is approximately twice that of the lower rod portion 150.

[0053] A cylindrical second connecting part 152 protruding forward (in the negative Y-axis direction) is provided at the upper end of the upper rod part 150A. The second connecting part 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) as the rod 150 rotates.

[0054] In the lower rod portion 150B, a cylindrical third connecting portion 154 protruding forward (in the negative Y-axis direction) is provided at the midpoint between the shaft hole 151 and the first connecting portion 153. The third connecting portion 154 is connected to the coil frame 134 of the coil unit 130, thereby causing the coil unit 130 to swing in the left-right direction (X-axis direction) as the rod 150 rotates.

[0055] It should be noted that, as Figure 8 As shown, a groove 102E extending in the left-right direction (X-axis direction) is formed on the inner bottom surface 102C (upper side of the shaft portion 102D) of the housing 102. As a result, the magnet unit 140 can swing in the left-right direction (X-axis direction) along the groove 102E.

[0056] In addition, such as Figure 8 As shown, a groove 102F extending in the left-right direction (X-axis direction) is formed on the inner bottom surface 102C (below the shaft portion 102D) of the housing 102. As a result, the magnet unit 140 can swing in the left-right direction (X-axis direction) along the groove 102F.

[0057] In addition, such as Figure 8 As shown, a groove 102G extending in the vertical direction (Z-axis direction) is formed on the inner bottom surface 102C (on the shaft portion 102D) of the housing 102. A rod 150 is rotatably disposed within the groove 102G. The rotation angle of the rod 150 is limited by the inner wall surfaces on the left and right sides of the groove 102G.

[0058] Terminals 161 and 162 are arranged on the upper side of the magnet unit 140 in a left-right direction. Terminal 161 is located on the left side, and terminal 162 is located on the right side. Terminals 161 and 162 each have internal terminals 161A and 162A protruding forward (in the negative Y-axis direction) from the inner bottom surface 102C of the internal space 102A of the housing 102. The end 138A of the wire 138 is connected to the internal terminal 161A (see reference). Figure 2 End 138B of wire 138 is connected to internal terminal 162A (see reference). Figure 2 Additionally, terminals 161 and 162 each have external terminals 161B and 162B that protrude outwards from the left and right sides of the housing 102. For example, terminals 161 and 162 are formed using metal plates.

[0059] (Structure of the 150-degree connection)

[0060] Figure 9 This is a diagram showing the structure of the power supply rod 150 connected in a power generation device 100 according to one embodiment.

[0061] like Figure 9 As shown, a cutout 146B, which is concave in the left-right direction (X-axis direction) of the back side (positive Y-axis side) of the magnet holder 146 of the magnet unit 140, is formed in the center. The cutout 146B is recessed in the forward direction (negative Y-axis direction). The second connecting portion 152 of the rod 150 is inserted into the cutout 146B.

[0062] In addition, such as Figure 9 As shown, a cutout 134D, which is concave in the left-right direction (X-axis direction), is formed at the center of the back side (the side facing the positive Y-axis) of the coil frame 134 of the coil unit 130. The third connecting part 154 of the rod 150 is inserted into the cutout 134D.

[0063] In addition, such as Figure 9 As shown, a through hole 111A extending in the front-to-back direction is formed at the center of the weight 111 on the vibrating body 110 in the left-right direction (X-axis direction). The first connecting portion 153 of the rod 150 is inserted into the through hole 111A. Figure 9 As shown, in this embodiment, the through hole 111A has an elongated shape with the vertical direction as its length direction, and the lateral width in the left-right direction is approximately the same as the diameter of the first connecting portion 153. Therefore, the power generation device 100 of one embodiment can suppress the swaying between the rod 150 and the weight 111, and make the rod 150 follow the swing of the weight 111.

[0064] (Operation of the power generation device 100 according to one embodiment)

[0065] Next, refer to Figures 10-12 The operation of a power generation device 100 according to one embodiment will be described. Figure 10 This is a front view showing the neutral state of the vibrator 110 in a power generation device 100 according to one embodiment. Figure 11 This is a front view showing the state of the vibrator 110 in a power generation device 100 according to one embodiment vibrating to the left. Figure 12 This is a front view showing the vibrator 110 in a power generation device 100 according to one embodiment vibrating to the right. It should be noted that... Figures 10-12 For ease of understanding, the illustrations of cover 104 and magnet holder 146 are omitted.

[0066] like Figure 10As shown, when the vibrating body 110 in the power generation device 100 is in a neutral state, the rod 150 is in a vertical state. Therefore, the coil unit 130 and the magnet unit 140 are respectively located at the center (on the center line CL) in the left-right direction (X-axis direction). At this time, the lower end face (an example of the "first magnetization surface") of the protrusion 144A of the magnetic yoke 144 is opposite to the upper end face (an example of the "first end face") of the first magnetic core 136A, and the lower end face (an example of the "second magnetization surface") of the magnet 142 is opposite to the upper end face (an example of the "second end face") of the second magnetic core 136B.

[0067] And, as Figure 11 As shown, in the power generation device 100, when the vibrator 110 causes a pair of elastic arms 124 to elastically deform and vibrate to the left (negative X-axis direction), the rod 150 rotates clockwise when viewed from the negative Y-axis side. Subsequently, the coil unit 130 swings to the left (negative X-axis direction), and the magnet unit 140 swings to the right (positive X-axis direction). That is, the coil unit 130 and the magnet unit 140 swing in opposite directions. As a result, the lower end face of the protrusion 144A of the yoke 144 separates from the upper end face of the first magnetic core 136A, and the lower end face of the magnet 142 separates from the upper end face of the second magnetic core 136B. Consequently, a change in magnetic flux is generated inside the coils 132A and 132B, thereby generating a current in each coil 132A and 132B.

[0068] Here, since the length ratio of the upper rod portion 150A to the lower rod portion 150B of the rod 150 is 1:2, the amount of movement of the magnet unit 140 to the right is approximately half the amount of movement of the vibrator 110 to the left. However, in the power generation device 100 of one embodiment, since the length ratio of the third connecting portion 154 to the first connecting portion 153 to the shaft hole 151 is 1:2, and since the coil unit 130 moves to the left by approximately half the amount of movement of the moving body 110, the amount of movement of the magnet unit 140 to the right relative to the coil unit 130 is approximately equal to the amount of movement of the vibrator 110 to the left. Therefore, according to the power generation device 100 of one embodiment, compared to a structure that only makes the magnet unit 140 oscillate, the change in magnetic flux inside the cylinders of the coils 132A and 132B (i.e., the amount of current generated) can be increased.

[0069] In addition, such as Figure 12As shown, in the power generation device 100, when the vibrator 110 causes a pair of elastic arms 124 to elastically deform and vibrate to the right (positive X-axis direction), the rod 150 rotates counterclockwise when viewed from the negative Y-axis side. Subsequently, the coil unit 130 swings to the right (positive X-axis direction), and the magnet unit 140 swings to the left (negative X-axis direction). That is, the coil unit 130 and the magnet unit 140 swing in opposite directions. As a result, the lower end face of the protrusion 144A of the yoke 144 separates from the upper end face of the first magnetic core 136A, and the lower end face of the magnet 142 separates from the upper end face of the second magnetic core 136B. Consequently, a change in magnetic flux is generated inside the coils 132A and 132B, thereby generating a current in each coil 132A and 132B.

[0070] Here, since the length ratio of the upper rod portion 150A to the lower rod portion 150B of the rod 150 is 1:2, the leftward movement of the magnet unit 140 is approximately half the rightward movement of the vibrator 110. However, in the power generation device 100 of one embodiment, since the length ratio of the third connecting portion 154 to the first connecting portion 153 to the shaft hole 151 is 1:2, and since the rightward movement of the coil unit 130 is approximately half the movement of the moving body 110, the leftward movement of the magnet unit 140 relative to the coil unit 130 is approximately equal to the rightward movement of the vibrator 110. Therefore, according to the power generation device 100 of one embodiment, compared to a structure that only makes the magnet unit 140 oscillate, the change in magnetic flux inside the cylinders of the coils 132A and 132B (i.e., the amount of current generated) can be increased.

[0071] The present invention has been described in detail above with respect to one embodiment of the invention. However, the present invention is not limited to these embodiments. Various modifications or alterations can be made within the scope of the spirit of the present invention as described in the technical solution.

[0072] For example, in one embodiment, a coil unit 130 is provided between the vibrator 110 and the rotating shaft (shaft hole 151), but it is not limited to this, and a magnet unit 140 may also be provided between the vibrator 110 and the rotating shaft (shaft hole 151).

[0073] Alternatively, for example, in one embodiment, the vibrator 110 is suspended and held by the elastic member 120, but it is not limited thereto. As long as the vibrator 110 can vibrate in at least the left and right directions, a structure in which the vibrator 110 is not suspended and held by the elastic member 120 may also be adopted.

[0074] This international application claims priority based on Japanese Patent Application No. 2020-098876, filed on June 5, 2020, the entire contents of which are incorporated herein by reference.

[0075] Explanation of reference numerals in the attached figures:

[0076] 100 power generation unit

[0077] 102 Casing

[0078] 102A Interior Space

[0079] 102B Claw

[0080] 102C inner bottom surface

[0081] 102D shaft

[0082] 102E, 102F, 102G slots

[0083] 104 masks

[0084] 104A Hook

[0085] 110 Vibrating body

[0086] 111 heavy objects

[0087] 111A Through Hole

[0088] 112 Cage

[0089] 112A Claw

[0090] 113 Cover

[0091] 113A Hook

[0092] 120 Elastic Component

[0093] 122 Fixing part

[0094] 124 Flexible Arm

[0095] 124A lower end

[0096] 124B Connector

[0097] 130 coil unit

[0098] 132A and 132B coils

[0099] 134 Coil Frame

[0100] 134A and 134B Coil Housing

[0101] 134C Core Housing

[0102] 134D incision area

[0103] 136 magnetic core

[0104] 136A First Core Section

[0105] 136B Second Core Section

[0106] 136C Connector

[0107] 138 wire

[0108] 138A and 138B end caps

[0109] 140 magnet units

[0110] 142 magnets

[0111] 142A First Polarity Section

[0112] 142B Second Polarity Section

[0113] 144 Magnetic Yoke

[0114] 144A Protrusion

[0115] 146 Magnet Holder

[0116] 146A Claw

[0117] 146B Incision Site

[0118] 146C Cavity

[0119] 148 masks

[0120] 148A Hook

[0121] 150 strokes

[0122] 150A Upper rod section

[0123] 150B Lower Side Rod

[0124] 151 shaft hole

[0125] 152 Second Connecting Section

[0126] 153 First Linkage Section

[0127] 154 Third Linkage Section

[0128] 161, 162 terminals

[0129] 161A, 162A Internal Terminals

[0130] 161B, 162B External terminals.

Claims

1. A power generation device, characterized in that, have: A rod having a rotating shaft and being configured to rotate; A vibrating body, which is connected to the first connection of the rod, and causes the rod to rotate by vibrating in the horizontal direction; A magnet unit is connected to a second connection at one end of the rod and swings in the horizontal direction as the rod rotates. as well as A coil unit is disposed opposite to the magnet unit in such a way that the rotating shaft is sandwiched in the middle, and is connected to a third connecting part on the other end of the rod, and swings in the horizontal direction in the opposite direction to the magnet unit as the rod rotates.

2. The power generation device according to claim 1, characterized in that, The rod has a first connecting portion at the end of the portion extending from the second connecting portion or the third connecting portion.

3. The power generation device according to claim 1 or 2, characterized in that, The power generation device further includes an elastic member, which suspends and holds the vibrating body using an elastic arm.

4. The power generation device according to any one of claims 1 to 3, characterized in that, In the magnet unit, a first magnetized surface magnetized by a first polarity and a second magnetized surface magnetized by a second polarity are arranged in the horizontal direction. The coil unit includes: coil; and A magnetic core, which passes through the coil, The magnetic core has: A first end face, which faces the first magnetized face; and The second end face is opposite to the second magnetized face.

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