JP2012157184A - Vibration power generator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a vibration power generator that can generate a sufficient amount of power regardless of amplitude of vibration.SOLUTION: A vibration power generator comprises: movable element which is movable back and forth along a guide member, and includes a first permanent magnet; a coil which generates induced electromotive force by reciprocating movement of the movable element; a second permanent magnet which is provided such that the same poles of the first permanent magnet and the second permanent magnet face with each other, and regulates the movement of the movable element; and a third permanent magnet which is provided in the opposite side of the magnetization direction of the second permanent magnet in the travel direction of the movable element so that the same poles of the second permanent magnet and the third permanent magnet face with each other. The vibration power generator comprises position adjustment means capable of adjusting an arrangement position of at least one of the second permanent magnet and the third permanent magnet in the travel direction of the movable element. At least one of the second permanent magnet and the third permanent magnet is arranged such that its arrangement position is adjustable in the travel direction of the movable element by activating the position adjustment means.

Description

  The present invention relates to a vibration generator including a mover having a permanent magnet.

  Conventionally, an electromagnetic induction type vibration power generator is known as a power generation device that converts kinetic energy into electric energy. This vibration generator is capable of swinging inside a cylindrical case made of a non-magnetic material having a coil wound around its outer periphery, a fixed permanent magnet fixed to the end of the cylindrical case, and the like. The swinging permanent magnet is disposed opposite to the fixed permanent magnet. When the swinging permanent magnet swings inside the cylindrical case, an induced electromotive force is generated in the coil (see, for example, Patent Document 1).

  The vibration generator as described above is provided with a fixed permanent magnet at the end of the cylindrical case, so that even if the vibration is relatively small due to the repulsive force of the induction permanent magnet and the fixed permanent magnet, Is formed so that the inside of the cylindrical case can be smoothly swung.

JP 2002-281727 A

  However, the vibration generator as described above has a range in which the swing permanent magnet can swing due to the repulsive force of the fixed permanent magnet provided at the end and the swing permanent magnet swinging inside the cylindrical case. Limited. In general, the amount of power generated by a vibration generator is proportional to the amplitude of vibration motion. Therefore, when the user greatly shakes the vibration generator, there is a tendency that the power generation amount of the vibration generator cannot be obtained sufficiently.

  An object of the present invention is to provide a vibration generator capable of obtaining a sufficient power generation amount regardless of the magnitude of vibration.

  In order to achieve the above object, the vibration generator of the first invention is capable of reciprocating along the guide member and generates an induced electromotive force by a reciprocating movement of the movable element having the first permanent magnet and the movable element. A coil that is generated, a second permanent magnet that is provided so that the same polarity as the first permanent magnet faces each other, and restricts the movement of the mover, and a magnetic field of the second permanent magnet in the moving direction of the mover. A vibration generator including a third permanent magnet provided so as to have a magnetization direction opposite to the magnetization direction, wherein at least the second permanent magnet and the third permanent magnet in the moving direction of the mover It is provided with position adjusting means capable of adjusting any of the arrangement positions, and at least one of the second permanent magnet and the third permanent magnet is operated in the moving direction of the mover by operating the position adjusting means. Its placement Characterized in that it is provided to be adjusted location.

  In addition to the configuration of the first invention, the vibration generator of the second invention is characterized in that the third permanent magnet has the first permanent magnet in the moving direction of the mover so that the same pole as the second permanent magnet faces. It is characterized in that it is provided on the side opposite to the side on which the movable element is provided with respect to the two permanent magnets.

  In addition to the configuration of the first invention, the vibration generator of the third invention is formed in a cylindrical shape in which one of the second permanent magnet and the third permanent magnet has a through hole, and the second permanent magnet The other of the magnet and the third permanent magnet is provided so that its position can be adjusted by moving the inside of the through hole relatively in the moving direction of the mover by operating the position adjusting means. It is characterized by being able to.

  In the vibration generator of the fourth invention, in addition to the configurations of the first to third inventions, the arrangement of the second permanent magnet is fixed in the moving direction of the mover, and the third permanent magnet is In the moving direction of the mover, the arrangement can be adjusted.

  According to a fifth aspect of the present invention, in addition to the structure of any one of the first to fourth aspects, the second permanent magnet is located on one side with respect to the mover in the moving direction of the mover. The third permanent magnet is provided on the one side of the second permanent magnet so that the same pole as the second permanent magnet faces.

  According to a sixth aspect of the vibration generator, in addition to the structure of any one of the first to fifth aspects, the second permanent magnet is provided on both sides of the mover in the moving direction of the mover. The third permanent magnet is provided so that the same polarity as the second permanent magnet faces each of the second permanent magnets.

  A vibration generator according to a seventh aspect of the invention is the length of the second permanent magnet in the moving direction of the mover, in addition to the structure of any one of the first invention, the second invention, and the fourth to sixth inventions. Is shorter than the length of the first permanent magnet.

  A vibration generator according to an eighth aspect of the invention includes a cylindrical casing in addition to the configuration of any of the first to seventh aspects, and the guide member is a cylindrical member provided in the casing. The coil is wound along the cylindrical member, and the mover reciprocates inside the cylindrical member.

  In addition to the configuration of the eighth invention, the vibration generator according to a ninth invention is characterized in that the position adjusting means includes at least a fixing portion for fixing to either the second permanent magnet or the third permanent magnet, and the housing. A screw portion that is screwed into a screw groove formed on an outer periphery, and at least one of the second permanent magnet and the third permanent magnet is configured to rotate the screw portion of the position adjusting unit; In the moving direction, the arrangement can be adjusted.

  According to the vibration generator of the first aspect of the present invention, the vibration generator includes the third permanent magnet provided so as to be in the magnetizing direction opposite to the magnetizing direction of the second permanent magnet in the moving direction of the mover. In the moving direction of the mover, at least one of the second permanent magnet and the third permanent magnet is provided with position adjusting means capable of adjusting the arrangement position of at least one of the second permanent magnet and the third permanent magnet. Any of the magnets is provided so that the position of the magnet can be adjusted in the moving direction of the mover by operating the position adjusting means. Therefore, by adjusting the repulsive force between the first permanent magnet and the second permanent magnet, it is possible to adjust the range in which the mover can move so as to match the user's desired swing width. The amount can be increased.

  According to the vibration power generator of the second invention, in addition to the effects of the first invention, the third permanent magnet is in contact with the second permanent magnet in the moving direction of the mover so that the same pole as the second permanent magnet faces. On the other hand, it is provided on the side opposite to the side where the mover is provided. Therefore, by adjusting the repulsive force between the first permanent magnet and the second permanent magnet, it is possible to adjust the movable range of the mover so as to match the user's desired swing width. The amount can be increased.

  According to the vibration generator of the third invention, in addition to the effects of the first invention, one of the second permanent magnet and the third permanent magnet is formed in a cylindrical shape having a through hole, and the second permanent magnet and the second permanent magnet The other of the three permanent magnets is provided such that the position thereof can be adjusted by moving the inside of the through-hole relatively in the moving direction of the mover by operating the position adjusting means. Therefore, regardless of the length of the second permanent magnet, the distance between the third permanent magnet and the second permanent magnet is changed to adjust the repulsive force of the magnet between the second permanent magnet and the first permanent magnet. Can do. Thereby, the movable range of the mover can be adjusted, and the power generation amount of the vibration generator can be effectively increased.

  According to the vibration generator of the fourth invention, in addition to the effects of the first to third inventions, the arrangement position of the second permanent magnet is fixed and the arrangement of the third permanent magnet is adjusted in the moving direction of the mover. Since it is provided, it is easy to change the interval between the second permanent magnet and the third permanent magnet. Therefore, it is easy to increase the power generation amount of the vibration generator.

  According to the vibration generator of the fifth invention, in addition to the effects of any one of the first to fourth inventions, the second permanent magnet is provided on one side with respect to the mover in the moving direction of the mover, The third permanent magnet is provided on one side of the second permanent magnet so that the same pole as the second permanent magnet faces. Therefore, the power generation amount of the vibration generator can be increased efficiently.

  According to the vibration generator of the sixth invention, in addition to any of the first to fifth inventions, the second permanent magnet is provided on both sides of the mover in the moving direction of the mover, and the third permanent magnet. The magnet is provided so that the same polarity as the second permanent magnet faces each of the second permanent magnets. Therefore, the amount of power generation can be increased more efficiently.

  According to the vibration generator of the seventh invention, in addition to any of the first invention, the second invention, and the fourth to sixth inventions, the length of the second permanent magnet is the first permanent in the moving direction of the mover. It is shorter than the length of the magnet. Therefore, by adjusting the distance between the second permanent magnet and the third permanent magnet, the repulsive force between the first permanent magnet and the second permanent magnet can be adjusted more easily, and the power generation amount can be increased more efficiently. Can do.

  According to the vibration generator of the eighth invention, in addition to any one of the first to seventh inventions, the cylindrical generator is provided with a cylindrical housing, the guide member is a cylindrical member provided in the housing, and the coil is a cylinder. The mover is reciprocated along the inside of the cylindrical member. Therefore, by adjusting the repulsive force between the first permanent magnet and the second permanent magnet, it is possible to adjust the movable range of the mover so as to match the user's desired swing width. The amount can be increased.

  According to the vibration generator of the ninth invention, in addition to the effect of the eighth invention, the position adjusting means includes at least a fixing portion that fixes the second permanent magnet or the third permanent magnet, and the housing. A screw portion that is screwed into a screw groove formed on an outer periphery, and at least one of the second permanent magnet and the third permanent magnet is configured to rotate the screw portion of the position adjusting unit; In the moving direction, the arrangement can be adjusted. Therefore, it is easy to adjust the movable range of the mover, and the power generation amount of the vibration power generator can be further increased.

It is sectional drawing of the vibration generator of the 1st mode of 1st Embodiment. It is sectional drawing of the vibration generator of the 2nd mode of 1st Embodiment. It is a schematic perspective view of the vibration generator of 1st Embodiment. It is a schematic diagram of the magnetic force line of the 1st permanent magnet of a 1st embodiment, the 2nd permanent magnet, and the 3rd permanent magnet. It is sectional drawing of the vibration generator of the 1st mode of 2nd Embodiment. It is sectional drawing of the vibration generator of the 2nd mode of 2nd Embodiment. It is sectional drawing of the vibration generator of the 1st mode of 3rd Embodiment. It is sectional drawing of the vibration generator of the 2nd mode of 3rd Embodiment. It is sectional drawing of the vibration generator of the 1st mode of 4th Embodiment. It is sectional drawing of the vibration generator of the 1st mode of 5th Embodiment. It is sectional drawing of the vibration generator of the 2nd mode of 5th Embodiment. It is sectional drawing which cut | disconnected the vibration generator of FIG. 10 by the 12-12 line. It is a schematic diagram of the magnetic force line of the 1st permanent magnet of a 5th embodiment, the 2nd permanent magnet, and the 3rd permanent magnet. It is sectional drawing of the vibration generator of the 1st mode of 6th Embodiment. It is sectional drawing of the vibration generator of the 2nd mode of 6th Embodiment. It is sectional drawing which cut | disconnected the vibration generator of FIG. 15 by the 16-16 line. It is a schematic diagram of the magnetic force line of the 1st permanent magnet of a 6th embodiment, the 2nd permanent magnet, and the 3rd permanent magnet.

(About the first embodiment)
Preferred embodiments of the present invention are described below. First, the vibration generator 10 of 1st Embodiment is demonstrated using FIG.1 and FIG.2. Hereinafter, each structural member which comprises the vibration generator 10 is demonstrated.

  As shown in FIG. 1, the housing 11 has a cylindrical shape that is long in the Y-axis direction. The upper part of the casing 11 is covered with a lid part 170, and the upper part of the casing 11 and the cylindrical member 190 is fixed to the lid part 170. A position adjusting unit 160 described later is screwed to the lower portion of the housing 11. Inside the casing 11, the cylindrical member 190, the mover 140, the second permanent magnet 15, and the third permanent magnet 16 are stored so as not to come out to the outside by the lid 170 and the position adjustment unit 160. .

  The casing 11 has a cylindrical shape in the present embodiment, but is not limited to this shape. For example, the casing 11 may have an elliptical cylindrical shape, a square cylindrical shape, a card-shaped flat plate shape, or other polygonal cylindrical shapes. The same applies to a cylindrical member 190 described later.

  The lid portion 170 is a substantially columnar flat plate shape, and the outer diameter thereof is substantially the same as that of the housing 11. The lid 170 is fixed to the upper portion of the casing 11 and the cylindrical member 190 so that these constituent members do not come out after the cylindrical member 190, the mover 140, and the second permanent magnet 15 described later are accommodated. The

  An elastic member (not shown) is fixed to the inside of the lid 170 in order to prevent the movable element 140 from being damaged by the impact when the mover 140 moves in the space 191 of the cylindrical member 190. Examples of the elastic member include isobrene rubber, nitrile rubber, butadiene rubber and the like.

  The cylindrical member 190 has a cylindrical shape that is long in the Y-axis direction, and the length in the Y-axis direction is approximately the same as that of the housing 11. The cylindrical member 190 is formed of a nonmagnetic material. For example, it is formed of a resin such as acrylic, ABS, polyacetal, or polyethylene terephthalate, or a ceramic such as alumina or glass.

  Inside the cylindrical member 190, a space portion 191 is formed in which a later-described movable element 140 can reciprocate. The lower end part of the cylindrical member 190 is open, and the third permanent magnet 16 fixed to the position adjusting part 160 is arranged so that the position can be adjusted. A method of adjusting the position of the third permanent magnet will be described later. Further, the lower portion of the space portion 191 of the tubular member 190 is regulated by a second permanent magnet 15 described later.

  Note that the cylindrical member is not necessarily provided, and may be a rod-like member as in a modified example described later. In this embodiment, the cylindrical member 190 is a guide member of the present invention.

  The electromagnetic induction coil 12 is wound and fixed along the outer peripheral surface of the cylindrical member 190 in a direction orthogonal to the longitudinal direction of the outer peripheral surface of the cylindrical member 190 (the Y-axis direction in FIGS. 1 and 2). . The electromagnetic induction coil 12 is connected to an electrode via an external wiring from a rectifying unit and a power storage unit (not shown). The material of the electromagnetic induction coil 12 is a copper enameled wire or the like.

  The electromagnetic induction coil 12 is provided by being wound around a part of the outer surface of the cylindrical member 190 in FIGS. 1 and 2, but the electromagnetic induction coil 12 is provided over the entire circumference of the cylindrical member 190. Or may be provided at a plurality of locations or along the inner periphery. Here, the electromagnetic induction coil 12 is a coil of the present invention.

  The mover 140 has one cylindrical first permanent magnet 14. The mover 140 has a cross-sectional shape similar to the cross-sectional shape of the space portion 191 of the cylindrical member 190. 1 and 2, the mover 140 is provided in the cylindrical member 190 so as to be capable of reciprocating in the Y-axis direction.

  In this embodiment, the mover 140 has one permanent magnet 14, but the mover 14 may have two or more permanent magnets facing the same pole. Moreover, although the needle | mover 140 is a column shape in this embodiment, a donut shape, a disk shape, a column shape etc. may be sufficient.

  The second permanent magnet 15 has a cylindrical shape and is fixed to the inside of the cylindrical member 190. Therefore, the outer diameter of the second permanent magnet 15 is almost the same as the inner diameter of the space portion 191. The second permanent magnet 15 has a columnar shape shorter than the length of the first permanent magnet in the Y-axis direction. Thus, as will be described later, in the state of FIG. 2, the magnetic force from the S pole on the upper part of the second permanent magnet 15 is easily attracted to the N pole on the upper part of the third permanent magnet 16.

  The second permanent magnet 15 is provided below the mover 140 so that the same pole as the first permanent magnet 14 provided in the mover 140 is opposed. In FIG. 1 and FIG. 2, the lower S pole of the first permanent magnet 14 and the upper S pole of the second permanent magnet 15 are arranged to face each other. In addition, when the needle | mover 140 is comprised from a some permanent magnet, it is provided so that the same pole may oppose the permanent magnet of the side nearest to the 2nd permanent magnet 15. FIG. In this case, the plurality of permanent magnets correspond to the first permanent magnet.

  The second permanent magnet 15 is fixed to the lower inner side of the cylindrical member 190 with an adhesive or the like. The fixed position of the second permanent magnet 15 is set at a position higher than the length of the third permanent magnet 16 in the Y-axis direction from the lower end of the cylindrical member 190. Thereby, the space for the 3rd permanent magnet 16 to move can be ensured (refer FIG. 2).

  The third permanent magnet 16 has a columnar shape, and has a cross-sectional shape similar to that of the cylindrical member 190 space 191. The third permanent magnet 16 is provided below the second permanent magnet 15 so that the same polarity as the second permanent magnet 15 faces the second permanent magnet 15. That is, the 3rd permanent magnet 16 is provided so that it may become the magnetizing direction opposite to the magnetizing direction of a 2nd permanent magnet. 1 and 2, the lower N pole of the second permanent magnet 15 and the upper N pole of the third permanent magnet 16 are arranged to face each other.

  The lower end of the third permanent magnet 16 is fixed to the position adjustment unit 160. By rotating the position adjusting member 160, the third permanent magnet 16 can move the position inside the cylindrical member 190 (see FIGS. 1 and 2).

  The position adjustment unit 160 is attached to the lower part of the housing 11. Specifically, a screw groove is formed on the outer periphery of the lower portion of the housing 11, and a screw groove is also formed on the inner periphery of the position adjusting unit 160 so as to be screwed thereto. The third permanent magnet 16 is fixed to the inner bottom of the position adjustment unit 160 with an adhesive or the like.

  When the position adjustment unit 160 is rotated clockwise (in the direction of arrow R) in the state of FIG. 1, the third permanent magnet 16 thereby moves the lower end portion of the cylindrical member 190 upward (in the positive Y-axis direction). To do. That is, as the third permanent magnet 16 moves in the positive Y-axis direction, the distance between the third permanent magnet 16 and the second permanent magnet 15 gradually decreases, and finally the third permanent magnet 16 is almost third as shown in FIG. The permanent magnet 16 moves to a position where it comes into contact with the second permanent magnet 15.

  On the other hand, when the position adjustment unit 160 is rotated counterclockwise (arrow L direction) in the state of FIG. 2, the third permanent magnet 16 moves downward (Y-axis negative direction) of the cylindrical member 190. . As shown in FIG. 1, the distance between the second permanent magnet 15 and the third permanent magnet 16 increases as the third permanent magnet 16 moves in the negative Y-axis direction. A projecting locking portion (not shown) is formed in the screw groove of the housing 11 so that the position adjusting portion 160 is not rotated too far counterclockwise in FIG. ing. The position adjustment unit corresponds to the position adjustment unit of the present invention. The same applies to position adjusting units 160A, 160B, and 160C described later.

(About the operation of the vibration generator of the first embodiment)
When vibration is applied to the vibration generator 10, the mover 140 reciprocates in the Y-axis direction in the space 191 of the cylindrical member 190. That is, when the mover 140 repeats reciprocating movement of the space portion 191 inside the electromagnetic induction coil 12, the magnetic flux lines generated from the mover 140 are orthogonal to the electromagnetic induction coil 12, and at that time, as an induced electromotive force An induced current is generated. The induced current is rectified by a rectification unit of a circuit unit (not shown), and the rectified current is stored as electric energy in the power storage unit. The stored energy stored is connected to an external device and used for the operation of the external device.

(Operations in the first and second modes)
When vibration is applied to the vibration generator 10, for example, there are relatively small vibrations that the user carries the vibration generator 10, and relatively large vibrations that the user forcibly vibrates an external device. As described above, the user can adjust the vibration mode of the mover 140 of the vibration power generator 10 according to the present embodiment in accordance with the magnitude of vibration applied to the vibration power generator 10.

  In the vibration power generator 10, the case where the distance between the second permanent magnet 15 and the third permanent magnet 16 is relatively large as shown in FIG. On the other hand, in the vibration power generator 10, a case where the distance between the second permanent magnet 15 and the third permanent magnet 16 is relatively small as shown in FIG. By switching these modes, it is possible to increase the amount of power generation by adjusting the movable range of the mover 140 of the vibration power generator 10. The first mode is suitable when the vibration applied to the vibration generator 10 is relatively small. The second mode is suitable when the vibration applied to the vibration generator 10 is relatively large. The operation in each mode will be described below.

-About operation | movement of 1st mode First, operation | movement of the vibration generator 10 in 1st mode is demonstrated using FIG. First, the user rotates the position adjustment unit 160 so as to be in the state of FIG. 1 to increase the interval between the second permanent magnet 15 and the third permanent magnet 16. In the first mode, for example, the user walks by placing the vibration generator 10 in a breast pocket.

  When the user walks, the mover 140 reciprocates in the longitudinal direction (Y-axis direction) of the interior 191 of the cylindrical member 190 due to the vibration applied to the vibration generator 10.

  Here, between the 2nd permanent magnet 15 and the 1st permanent magnet 14, in the Y-axis direction, the magnetic force which arises from the south pole of the upper part of the 2nd permanent magnet 15, and the lower part of the 1st permanent magnet 14 which opposes it The repulsive force with the magnetic force generated from the S pole of the. Due to the repulsive force between the first permanent magnet 14 and the second permanent magnet 15, the mover 140 is always floating in the space 191 of the cylindrical member 190.

  Therefore, even if the vibration applied to the vibration power generator 10 is a relatively small vibration, the space generator 191 can be smoothly reciprocated.

  On the other hand, the movement range of the cylindrical member 190 of the mover 140 in the space portion 191 is a repulsive force between the first permanent magnet 14 and the second permanent magnet 15 at the lower portion of the space portion 191 (Y-axis negative side). Limited by.

  Thereby, even if the length of the space 191 of the cylindrical member 190 in the Y-axis direction is L1, the mover 140 reciprocates in the range of L2 in which the length in the Y-axis direction is smaller than L1. . Therefore, in the first mode, even if the range in which the mover 140 can move in the space portion 191 inside the cylindrical member 190 is small, the first mode efficiently uses the relatively small vibration continuously obtained by the vibration generator 10. This mode is suitable when you want to vibrate.

  As shown in FIG. 3, in the vibration power generator 10, a locking pin 115 that locks in the breast pocket of the user may be provided on the outer periphery of the housing 11 in parallel with the Y-axis direction. By locking the locking pin 115 in the breast pocket, the vibration power generator 10 is carried by the user so that its longitudinal direction (Y-axis direction) is substantially perpendicular to the ground and perpendicular to the walking direction. . That is, the second permanent magnet 15 is carried so as to be disposed under the vibration power generator 10. In this way, the mover 10 of the vibration power generator 10 can vibrate efficiently in the first mode.

-Operation | movement of 2nd mode Next, operation | movement of the vibration generator 10 in 2nd mode is demonstrated using FIG. First, the user rotates the position adjusting unit 160 so as to be in the state shown in FIG. 2 to reduce the interval between the second permanent magnet 15 and the third permanent magnet 16. In the second mode, for example, the user forcibly shakes the external device to vibrate the mover 140 in the longitudinal direction of the cylindrical member 190 (Y-axis direction in FIG. 2).

  Here, since the distance between the upper S pole of the second permanent magnet 15 and the upper N pole of the third permanent magnet 16 is shortened, from the S pole of the upper part of the second permanent magnet 15 in the Y-axis direction. The generated magnetic force is attracted to the upper N pole of the third permanent magnet 16. Therefore, compared with the case of the first mode in FIG. 1, the magnetic force generated from the south pole of the upper part of the second permanent magnet 15 in the Y-axis direction is attracted in the Y-axis negative direction. The repulsive force between the lower S pole and the upper S pole of the second permanent magnet 15 is weakened.

  Therefore, the mover 140 does not float in the space portion 191 inside the cylindrical member 190 as in the first mode, and the gravity applied to the mover 140 when the vibration generator 10 is stationary in the Y-axis direction. Due to the influence of the above, the mover 14 is in a state of being substantially in contact with the second permanent magnet 16.

  On the other hand, since the repulsive force between the first permanent magnet 14 and the second permanent magnet 15 is weak in the movement range of the space portion 191 of the cylindrical member 190 of the mover 140, the lower portion of the space portion 191 (Y-axis negative) The second permanent magnet 15 can be moved close to the position where the second permanent magnet 15 is disposed.

  From the result of the magnetic field analysis, the state of the lines of magnetic force in the second mode is as shown in FIG. A reference point A is defined near the boundary between the magnetic field lines from the N pole side of the first permanent magnet 14 and the magnetic field lines from the N pole side of the second permanent magnet 15. Compared with FIG. 4A that shows the lines of magnetic force in the first mode, the reference point A has moved to the second permanent magnet 15 side by a length LA in the moving direction of the first permanent magnet 14. This also shows that the repulsive force between the N pole of the first permanent magnet 14 and the N pole of the second permanent magnet 15 is weakened.

  Thus, in the second mode, the mover 14 can reciprocate fully utilizing the range of the length L1 of the space portion 191 of the cylindrical member 190 in the Y-axis direction. Therefore, in the second mode, the range in which the mover 140 can move in the space 191 inside the cylindrical member 190 is larger than in the first mode. When the vibration generator 10 is forcibly vibrated, the moving range of the mover 140 is increased, so that the amount of power generation can be effectively increased.

  As described above, when the vibration generator 10 is used, the user can select the first mode or the second mode. Thereby, the user can adjust the manner of vibration of the mover 140 and the movement range of the mover 140 according to the usage pattern, and can efficiently increase the amount of power generation.

  As an example, in the vibration generator 10, the length of the casing 11 is about 60 mm, the length of the cylindrical member 190 is about 60 mm, the length of the mover 140 is about 8 mm, and the second permanent magnet 15 in the Y-axis direction. Is about 2 mm, and the third permanent magnet 16 is about 3 mm in length.

  In the first mode, as shown in FIG. 1, the position of the third permanent magnet 16 is moved in the Y-axis negative direction by about 2 mm to 5 mm to increase the distance between the second permanent magnet 15 and the third permanent magnet 16. As a result, the mover 140 is held in a state of being about 30 mm away from the second permanent magnet 15 in the positive direction of the Y axis.

  On the other hand, in the second mode, as shown in FIG. 2, the position of the third permanent magnet 16 is moved in the positive Y-axis direction by about 2 mm to 5 mm, and the distance between the second permanent magnet 15 and the third permanent magnet 16 is reached. The movable element 140 is held in a state of floating about 0.5 to 5 mm in the positive Y-axis direction from the second permanent magnet 15. By forcibly applying vibration, the mover 140 can move in the space portion 191 by the length of the cylindrical member 190 in the Y-axis direction.

  The vibration power generator 10 according to the first embodiment described above has the third permanent magnet so that the interval between the second permanent magnet 15 and the third permanent magnet 16 can be changed in the Y-axis direction, which is the moving direction of the mover 140. The arrangement position of the magnet is provided to be adjustable. Therefore, the amount of power generated by the vibration power generator can be increased by adjusting the repulsive force between the first permanent magnet and the second permanent magnet according to the degree of vibration applied to the vibration power generator 10.

  In the vibration generator 10, the arrangement position of the second permanent magnet 15 is fixed in the Y-axis direction, which is the moving direction of the mover 140, and the arrangement of the third permanent magnet 16 can be adjusted by the position adjustment unit 160. Since it is provided, it is easy to adjust the interval between the second permanent magnet 15 and the third permanent magnet 16.

  The second permanent magnet 15 regulates the movement of the mover 140 from the Y-axis negative side, and the third permanent magnet 16 has a lower part of the second permanent magnet so that the same pole as the second permanent magnet 15 faces. Is provided. Therefore, the amount of power generation can be increased more efficiently by utilizing the repulsive force between the first permanent magnet 14 and the second permanent magnet 15.

(About the second embodiment)
Next, the vibration generator 10A of the second embodiment shown in FIGS. 5 and 6 will be described. 5 and 6, the same reference numerals as those in FIG. 1 or FIG.

  Unlike the vibration power generator 10 of the above-described embodiment, the vibration power generator 10 is provided with the position adjusting unit 160 at one position below the housing 11, but in the vibration power generator 10A of the second embodiment, Position adjustment units 160A and 160B are attached to both ends of the housing 11 (X-axis direction in FIGS. 5 and 6).

  In the above-described embodiment, the second permanent magnet 15 and the third permanent magnet 16 are provided one by one in the lower part of the vibration generator, whereas in the vibration generator 10A of the second embodiment, the second permanent magnet 15 and the third permanent magnet 16 are provided at both ends. Two permanent magnets 15A and 15B and third permanent magnets 16A and 16B are provided. Each configuration will be described below.

  The casing 11A has a cylindrical shape that is long in the X-axis direction, and thread grooves are formed on the outer periphery of both end portions thereof. The screw groove formed at the end on the negative side of the X-axis is screwed with the screw groove formed inside the position adjusting unit 160A. On the other hand, the thread groove formed at the end on the positive side of the X axis is screwed with the thread groove formed inside the position adjustment unit 160B.

  The second permanent magnet 15A is fixed to the negative side of the X axis of the cylindrical member 190 with an adhesive or the like. At this time, the S pole on the X axis positive side of the second permanent magnet 15A and the S pole on the X axis negative side of the first permanent magnet 14 are arranged to face each other. The fixed position of the second permanent magnet 15A is at least the X-axis direction of the third permanent magnet 16A from the X-axis negative end of the cylindrical member 190 so that the third permanent magnet 16A can move in the X-axis direction. Is fixed at a position on the positive side of the X-axis from the length of (see FIG. 6).

  The second permanent magnet 15B is fixed to the positive side of the cylindrical member 190 with an adhesive or the like. At this time, the N pole on the X axis negative side of the second permanent magnet 15B and the N pole on the X axis positive side of the first permanent magnet 14 are arranged to face each other. The fixed position of the second permanent magnet 15B is at least in the X-axis direction of the third permanent magnet 16B from the end on the positive X-axis side of the cylindrical member 190 so that the third permanent magnet 16B can move in the X-axis direction. It is fixed at a position on the X-axis negative side from the length (see FIG. 6). A space portion 191A inside the cylindrical member 190 is formed by the second permanent magnet 15A and the second permanent magnet 15B.

  The second permanent magnet 15A and the second permanent magnet 15B have the same shape as the second permanent magnet 15 described above. Moreover, although the 2nd permanent magnet 15A and the 2nd permanent magnet 15B are distinguished for description, they are the same structures.

  The third permanent magnet 16A is fixed to the inner bottom portion of the position adjusting unit 160A at the end of the housing 11A on the X-axis negative side. As a result, the third permanent magnet 16A is disposed such that its position can be adjusted in the X-axis direction. The third permanent magnet 16A is provided so that the same polarity as the second permanent magnet 15A faces. Specifically, it is arranged so that the N pole on the X axis negative side of the second permanent magnet 15A faces the N pole on the X axis positive side of the third permanent magnet 16A.

  The third permanent magnet 16B is fixed to the inner bottom portion of the position adjusting unit 160B at the end of the housing 11A on the X axis positive side. Thereby, the 3rd permanent magnet 16B is arrange | positioned so that a position can be adjusted to a X-axis direction. The 3rd permanent magnet 16B is provided so that the same pole as the 2nd permanent magnet 15B may oppose. Specifically, it is arranged such that the S pole on the X axis negative side of the second permanent magnet 15B faces the S pole on the X axis negative side of the third permanent magnet 16B.

  The third permanent magnet 16A and the third permanent magnet 16B have the same shape as the third permanent magnet 15 described above. Moreover, although the 3rd permanent magnet 15A and the 2nd permanent magnet 16B are distinguished for description, they are the same structures.

  The position adjustment unit 160A is provided on the negative X-axis side of the housing 11A and moves the position of the third permanent magnet 16A in the X-axis direction. Specifically, in FIG. 5, when the position adjustment unit 160A is rotated clockwise, the third permanent magnet 16A moves to the X axis positive side, and as shown in FIG. The interval between the second permanent magnets 15A is reduced.

  On the other hand, in FIG. 6, when the position adjustment unit 160A is rotated counterclockwise, the third permanent magnet 16A moves to the X axis negative side, and as shown in FIG. The interval between the permanent magnets 15A is increased.

  The position adjustment unit 160B is provided on the X axis positive side of the housing 11A and adjusts the position of the third permanent magnet 16B in the X axis direction. The method of moving the third permanent magnet 16B of the position adjustment unit 160B is the same as that of the position adjustment unit 160A described above, and a description thereof will be omitted.

(About the operation of the vibration generator of the second embodiment)
In the vibration power generator 10A of the second embodiment, as shown in FIGS. 5 and 6, the vibration direction of the vibration power generator 10A is mainly the X-axis direction orthogonal to the gravity. Here, it is assumed that the gravity direction is the negative direction of the Y axis.

  Similar to the above-described embodiment, the vibration generator 10A is suitable for the first mode suitable when the vibration applied to the vibration generator 10A is relatively small, and when the vibration applied to the vibration generator 10A is relatively large. It has a second mode. The operation in each vibration mode will be described below.

-About operation | movement of 1st mode First, operation | movement of 10 A of vibration generators in 1st mode is demonstrated using FIG. First, the user rotates the position adjustment units 160A and 160B so as to be in the state of FIG. 5, and the interval between the second permanent magnet 15A and the third permanent magnet 16A and the second permanent magnet 15B and the third permanent magnet 16B. Increase the distance between

  In the first mode, for example, the user carries the vibration power generator 10A in a breast pocket. For example, the vibration power generator 10A is carried by the user so that its longitudinal direction (X-axis direction) is substantially perpendicular to the direction of gravity.

  Here, on the X-axis negative side of the vibration generator 10A, between the second permanent magnet 15A and the first permanent magnet 14, the magnetic force generated from the S pole on the X-axis positive side of the second permanent magnet 15A, and A repulsive force is generated with the magnetic force generated from the S pole on the negative X-axis side of the opposing first permanent magnet 14.

  Similarly, on the positive X-axis side of the vibration power generator 10A, the magnetic force generated from the N-pole on the negative X-axis side of the second permanent magnet 15B is between the second permanent magnet 15B and the first permanent magnet 14. A repulsive force is generated against the magnetic force generated from the N pole on the positive X-axis side of the first permanent magnet 14 facing it.

  As a result, even if the vibration in the X-axis direction applied to the vibration generator 10A is relatively small, the mover 140 is caused by the repulsive force between the second permanent magnet 15A and the X-axis on the negative side of the X-axis. On the positive side, the space 191 in the tubular member 190 can be smoothly moved by the repulsive force between the second permanent magnet 15B.

  On the other hand, the moving range of the mover 140 in the space portion 191A is limited by the repulsive force between the first permanent magnet 14 and the second permanent magnet 15A on the X-axis negative side. Similarly, the moving range of the mover 140 in the space portion 191A is limited by the repulsive force between the first permanent magnet 14 and the second permanent magnet 15B on the X axis positive side. In the space portion 191A, the range in which the mover 140 can generally move is a range of L4 that is smaller than the length L3 of the space portion 191A of the cylindrical member 190 in the X-axis direction.

-Operation | movement of 2nd mode Next, operation | movement of 10 A of vibration generators in 2nd mode is demonstrated using FIG. First, the user rotates the position adjustment units 160A and 160B so as to be in the state of FIG. 6, and the interval between the second permanent magnet 15A and the third permanent magnet 16A and the second permanent magnet 15B and the third permanent magnet 16B. Reduce the distance between

  In the second mode, for example, the user forcibly vibrates the vibration generator 10A in the X-axis direction.

  Here, as shown in FIG. 6, on the X axis negative side of the vibration power generator 10A, the S pole on the X axis positive side of the second permanent magnet 15A and the N pole on the X axis positive side of the third permanent magnet 16A. The magnetic force generated from the S pole on the X axis positive side of the second permanent magnet 15A is attracted to the N pole on the X axis positive side of the third permanent magnet 16A. Therefore, compared to the case of FIG. 5, the magnetic force generated from the S pole of the second permanent magnet 15 </ b> A becomes weaker on the X axis negative side, and the S pole of the second permanent magnet 15 </ b> A and the X axis of the first permanent magnet 14 are reduced. The repulsive force with the negative S pole is weakened.

  Similarly, in FIG. 6, on the X axis positive side of the vibration power generator 10A, the distance between the S pole on the X axis negative side of the second permanent magnet 15B and the N pole on the X axis negative side of the third permanent magnet 16B is Due to the shortening, the magnetic force generated from the S pole on the X axis negative side of the second permanent magnet 15B is attracted to the N pole on the X axis negative side of the third permanent magnet 16A. Therefore, compared with the case of FIG. 5, on the X axis positive side, the magnetic force generated from the S pole of the second permanent magnet 15B is weakened, and the S pole of the second permanent magnet 15B and the X axis of the first permanent magnet 14 are reduced. The repulsive force with the positive S pole is weakened.

  That is, the mover 140 of the vibration power generator 10A needs to apply a larger vibration to the vibration power generator 10A in the X-axis direction as compared with the first mode.

  On the other hand, the movement range of the space portion 191A of the cylindrical member 190 of the mover 140 is such that the repulsive force between the first permanent magnet 14 and the second permanent magnet 15A and the first permanent magnet 14 and the second permanent magnet in the X-axis direction. Since the repulsive force with 15B is weak, the inside of the space part 191 regulated by the second permanent magnet 15A and the second permanent magnet 15B can be sufficiently moved by the length L3 in the X-axis direction. The magnetic field lines of the first permanent magnet 14, the second permanent magnet 15A and the third permanent magnet 16A or the first permanent magnet 14, the second permanent magnet 15B and the third permanent magnet 16B of the vibration power generator 10A of the second embodiment. Since the relationship is the same as that in FIG. 4, the illustration and description thereof are omitted. The same applies to the following embodiments.

  Thus, in the vibration power generator 10A of the second embodiment, the second permanent magnet 15A and the second permanent magnet 15B are disposed on both ends of the space portion 191A, respectively, so that the first permanent magnet 14 and the second permanent magnet 14A are disposed. Using the repulsive force between the magnet 15A and the repulsive force between the first permanent magnet 14 and the second permanent magnet 15B, the mover 140 can be smoothly reciprocated. In particular, in the X-axis direction, which is the moving direction of the mover 140, the second permanent magnets 15A and 15B and the third permanent magnets 16A and 16B are arranged on both sides of the moving direction of the mover 140, thereby efficiently increasing the amount of power generation. be able to.

(About the vibration generator of the third embodiment)
Next, the vibration generator 10B according to the third embodiment shown in FIGS. 7 and 8 will be described. The vibration power generator 10B of the third embodiment is different from the above-described first embodiment in that the position adjusting unit 160C moves the position of the second permanent magnet 15C. 7 and 8, the same reference numerals as those in FIG. 1 or FIG.

  The second permanent magnet 15 </ b> C has a cylindrical shape similar to that of the second permanent magnet 15, and the bottom thereof is fixed to the position adjustment unit 160 </ b> C via the fixing member 165. The second permanent magnet 15C is supported so as to be movable in the Y-axis direction.

  The third permanent magnet 16 </ b> C has a donut shape having a through hole in the center, and is fixed to the lower inner side of the tubular member 190 with an adhesive or the like. A fixing member 165 described later is inserted through the through hole. The third permanent magnet 16C is provided so that the same pole as the second permanent magnet 15C is opposed.

  The position adjustment unit 160 </ b> C is attached to the lower part of the housing 11. A rod-shaped fixing member 165 is fixed to the center of the inner bottom portion of the position adjusting portion 160C, and the second permanent magnet 15C is fixed through the through hole of the third permanent magnet 16C.

  When the position adjusting unit 160C is rotated counterclockwise (arrow L direction) in the state of FIG. 5, the second permanent magnet 15C moves downward (Y-axis negative direction) in the space in the cylindrical member 190. That is, as the second permanent magnet 15C moves in the negative Y-axis direction, the distance between the third permanent magnet 16C and the second permanent magnet 15C gradually decreases, and finally the second permanent magnet 15C is almost second as shown in FIG. The permanent magnet 15C moves to a position in contact with the third permanent magnet 16C.

  On the other hand, when the position adjustment unit 160C is rotated clockwise (in the direction of arrow R) in the state of FIG. 8, the second permanent magnet 15C moves upward (in the Y-axis positive direction) of the cylindrical member 190. Then, as shown in FIG. 7, as the second permanent magnet 15C moves in the positive Y-axis direction, the distance between the second permanent magnet 15C and the third permanent magnet 16C increases.

  In the vibration generator 10C of the third embodiment, the state of FIG. 7 is the first mode, the state of FIG. 8 is the second mode, and the operation of the vibration generator 10C is the same as that of the first embodiment. Description is omitted.

  In the first mode of FIG. 7, the mover 140 reciprocates in the range of the length L7 in the Y-axis direction by the repulsive force between the first permanent magnet 14 and the second permanent magnet 15C. In the second mode of FIG. 8, since the repulsive force between the first permanent magnet 14 and the second permanent magnet 15C becomes weak, the mover 140 reciprocates within the range of the length L6 in the Y-axis direction.

  Like the vibration power generator 10C of the third embodiment, the distance between the second permanent magnet 15C and the third permanent magnet 16C may be adjustable by moving the position of the second permanent magnet 15C.

(About the vibration generator of the fourth embodiment)
In addition, a vibration generator 10C of the fourth embodiment shown in FIG. 9 will be described. Unlike the vibration power generators 10, 10 </ b> A, 10 </ b> B of the above-described embodiment, the vibration power generator 10 </ b> C of the fourth embodiment is provided with a rod-shaped member 180 instead of the tubular member 190. In FIG. 9, the same reference numerals as those in any of FIGS. 1 to 8 are the same, and the description thereof is omitted.

  The rod-shaped member 180 is made of a nonmagnetic material, is disposed at the center of the housing 11, and is fixed to the bottom of the lid 170. In the fourth embodiment, the rod-shaped member 180 is the guide member of the present invention.

  The mover 140D has a donut-shaped first permanent magnet 14D having a through hole in the center. The rod-shaped member 180 is inserted into the through hole of the mover 140D, and the mover 140D reciprocates in the Y-axis direction along the rod-shaped member 180.

  The second permanent magnet 15 </ b> D has a donut shape having a through hole in the center, and the rod-shaped member 180 is inserted into the through-hole, and the second permanent magnet 15 </ b> D is fixed to the rod-shaped member 180. The fixed position of the second permanent magnet 15D is fixed at a position above the length of the third permanent magnet 16D in the Y-axis direction from the lower end of the rod-shaped member 180 so that the third permanent magnet 16D can move.

  The third permanent magnet 16D has a donut shape having a through hole in the center, and a rod-like member 180 is detachably disposed from the upper part of the through hole. Thereby, when the position adjustment unit 160 is rotated, the third permanent magnet 16D is formed to be movable in the Y-axis direction.

  The electromagnetic induction coil 12 is an air-core coil disposed along the inner periphery of the housing 11. Thus, in 4th Embodiment, a through-hole is formed in 1st permanent magnet 14D, 2nd permanent magnet 15D, and 3rd permanent magnet 16D, and the rod-shaped member 180 is penetrated by the through-hole. Even if the cylindrical member 190 is not provided, the same effect as that of the above-described embodiment can be obtained by the reciprocating movement of the mover 140D in the Y-axis direction along the rod-shaped member 180.

  The vibration generator 10C is different from the vibration generator 10 in that a rod-shaped member 180 is provided instead of the cylindrical member 190, and the third permanent magnet is moved in the first mode or the second mode. Since the operation at is the same as that of the vibration generator 10 of the first embodiment, the description thereof is omitted.

(About the vibration generator of the fifth embodiment)
Next, a vibration generator 10D according to a fifth embodiment shown in FIGS. 10 to 12 will be described. 10 to 12, the same reference numerals as those in the above-described drawings are the same, and the description thereof is omitted.

  The second permanent magnet 15E has a columnar shape similar to that of the second permanent magnet 15, but has a columnar shape in which the length of the second permanent magnet 15E is relatively long in the moving direction (Y-axis direction) of the mover 140. . The outer peripheral portion of the second permanent magnet 15E is fixed to the inside of the cylindrical member 190 with an adhesive or the like.

  The third permanent magnet 16E has a cylindrical shape having a through hole at the center. As shown in FIG. 12, the inner diameter of the third permanent magnet 16 </ b> E is larger than the outer diameter of the cylindrical member 190. The outer diameter of the third permanent magnet 16E is smaller than the inner diameter of the housing 11. The lower part of the third permanent magnet 16E is fixed to the position adjusting unit 160 in FIG. The third permanent magnet 16E is provided so that the magnetizing direction is opposite to that of the second permanent magnet 15E.

  When the position adjustment unit 160 is rotated clockwise (in the direction of arrow R) in the state of FIG. 10, the third permanent magnet 16 </ b> E thereby causes the casing 11 at the lower end portion of the cylindrical member 190 and the cylindrical member 190 to move. The space between them is moved upward (Y-axis positive direction). Specifically, the third permanent magnet 16E moves to the Y axis positive side on the outer peripheral side of the second permanent magnet 15E. That is, as the third permanent magnet 16E moves in the positive Y-axis direction, the distance between the south pole of the second permanent magnet 15E and the north pole of the third permanent magnet 16E moves to a position where it becomes closer as shown in FIG.

  On the other hand, when the position adjustment unit 160 is rotated counterclockwise (in the direction of the arrow L) in the state of FIG. 11, the third permanent magnet 16 </ b> E moves down the space between the cylindrical member 190 and the housing 11 ( Move in the negative Y-axis direction). Specifically, the third permanent magnet 16E moves to the Y axis negative side on the outer peripheral side of the second permanent magnet 15E. As shown in FIG. 10, as the third permanent magnet 16E moves in the negative Y-axis direction, the distance between the S pole of the second permanent magnet 15E and the N pole of the third permanent magnet 16E increases.

(Operations in the first and second modes)
In the vibration power generator 10D, a case where the distance between the second permanent magnet 15E and the third permanent magnet 16E is relatively large as shown in FIG. That is, the first mode is when the distance between the S pole of the second permanent magnet 15E and the N pole of the third permanent magnet 16E is relatively large.

  On the other hand, in the vibration power generator 10D, a case where the distance between the second permanent magnet 15E and the third permanent magnet 16E is relatively small as shown in FIG. That is, the second mode is when the distance between the S pole of the second permanent magnet 15E and the N pole of the third permanent magnet 16E is relatively small.

  By switching between these modes, the movable range of the mover 140 of the vibration power generator 10D can be adjusted to increase the amount of power generation. As in the above-described embodiment, the first mode is suitable when the vibration applied to the vibration generator 10D is relatively small. The second mode is suitable when the vibration applied to the vibration generator 10D is relatively large. The operation in each mode will be described below. Since the operation in each mode is the same as described above, the description thereof will be omitted as appropriate.

-About operation | movement of 1st mode First, operation | movement of vibration generator 10D in 1st mode is demonstrated using FIG. The user rotates the position adjusting unit 160 so as to be in the state of FIG. 10 to increase the distance between the second permanent magnet 15E and the third permanent magnet 16E.

  In the first mode, between the second permanent magnet 15E and the first permanent magnet 14, in the Y-axis direction, the magnetic force generated from the S pole on the upper part of the second permanent magnet 15E and the first permanent magnet 14 opposed thereto. The repulsive force with the magnetic force generated from the S pole at the lower part of is generated. Due to the repulsive force between the first permanent magnet 14 and the second permanent magnet 15E, the mover 140 is always floating in the space 191 of the tubular member 190.

  Therefore, even if the vibration applied to the vibration power generator 10D is a relatively small vibration, the space 191 can be smoothly reciprocated.

  On the other hand, the movement range of the cylindrical member 190 of the mover 140 in the space portion 191 is a repulsive force between the first permanent magnet 14 and the second permanent magnet 15E in the lower portion (Y-axis negative side) of the space portion 191. Limited by.

  Thereby, even if the length of the space 191 of the cylindrical member 190 in the Y-axis direction is L8, the mover 140 reciprocates in the range of L9 in which the length in the Y-axis direction is smaller than L8. .

-Operation | movement of 2nd mode Next, operation | movement of vibration generator 10D in 2nd mode is demonstrated using FIG. First, the user rotates the position adjusting unit 160 so as to be in the state shown in FIG. 11 to reduce the interval between the second permanent magnet 15E and the third permanent magnet 16E.

  Here, since the distance between the upper S pole of the second permanent magnet 15E and the upper N pole of the third permanent magnet 16E is shortened, from the upper S pole of the second permanent magnet 15E in the Y-axis direction. The generated magnetic force is attracted to the upper N pole of the third permanent magnet 16E. Therefore, the repulsive force between the lower S pole of the first permanent magnet 14 and the upper S pole of the second permanent magnet 15E is weaker in the Y-axis direction than in the first mode of FIG.

  On the other hand, since the repulsive force between the first permanent magnet 14 and the second permanent magnet 15E becomes weak in the movement range of the space portion 191 of the cylindrical member 190 of the mover 140, the lower portion of the space portion 191 (Y-axis negative) The second permanent magnet 15E can be moved close to the position where the second permanent magnet 15E is disposed. Therefore, the moving range of the mover 140 is L8.

  Note that the state of the lines of magnetic force in this second mode is as shown in FIG. A reference point B is defined near the boundary between the magnetic field lines from the N pole side of the first permanent magnet 14 and the magnetic field lines from the N pole side of the second permanent magnet 15E. Compared to FIG. 13A showing the magnetic field lines in the first mode, the reference point B is moved to the second permanent magnet 15E side by the length LB in the moving direction of the first permanent magnet 14. This also shows that the repulsive force between the N pole of the first permanent magnet 14 and the N pole of the second permanent magnet 15E is weakened.

  As an example, in the vibration generator 10D, the length of the casing 11 is about 60 mm, the length of the cylindrical member 190 is about 60 mm, the length of the mover 140 is about 8 mm, and the second permanent magnet 15 in the Y-axis direction. The length of the third permanent magnet 16 is about 2 mm.

  Thus, in the second mode, the mover 140 can reciprocate fully utilizing the range of the length L8 of the space 191 of the cylindrical member 190 in the Y-axis direction. Therefore, in the second mode, the range in which the mover 140 can move in the space 191 inside the cylindrical member 190 is larger than in the first mode. When the vibration generator 10 is forcibly vibrated, the moving range of the mover 140 is increased, so that the amount of power generation can be effectively increased.

  Particularly, in the vibration power generator 10D of the fifth embodiment, the second permanent magnet 15E and the third permanent magnet 16E are not arranged in a straight line in the Y-axis direction in the moving direction of the mover 140. Thereby, regardless of the length of the second permanent magnet 15E, the distance between the S pole of the second permanent magnet 15E and the N pole of the third permanent magnet 16E can be adjusted. That is, the repulsive force of the magnet between the second permanent magnet 15E and the first permanent magnet 14 is adjusted by changing the distance between the N pole of the third permanent magnet 16E and the S pole of the second permanent magnet 15E. Thus, the movable range of the mover 140 can be adjusted, and the power generation amount of the vibration power generator 10D can be effectively increased. The same effect can be obtained with the vibration generator 10F of the sixth embodiment below.

(About the vibration generator of the sixth embodiment)
Next, the vibration generator 10E according to the sixth embodiment shown in FIGS. 14 to 17 will be described. 14 to 17, the same reference numerals as those in the above-described drawings are the same, and the description thereof is omitted.

  The second permanent magnet 15 </ b> F has a cylindrical shape in which a through hole is formed in the central portion, and an outer peripheral portion thereof is fixed to the inside of the cylindrical member 190 with an adhesive or the like. As shown in FIG. 16, the outer diameter of the second permanent magnet 15 </ b> F is smaller than the inner diameter of the cylindrical member 190. The inner diameter of the second permanent magnet 15F is larger than the outer diameter of the third permanent magnet 16F.

  The third permanent magnet 16F has a cylindrical cylindrical shape. As shown in FIG. 16, the outer diameter of the third permanent magnet 16F is smaller than the inner diameter of the second permanent magnet 15F. And the bottom part of the 3rd permanent magnet 16F is connected to the position adjustment part 160 via the fixing member 166. FIG. The third permanent magnet 16F is magnetized so as to be opposite to the magnetizing direction of the second permanent magnet 15F.

  When the position adjusting unit 160 is rotated clockwise (in the direction of arrow R) in the state of FIG. 14, the third permanent magnet 16F thereby moves the through hole of the second permanent magnet 15F upward (Y-axis positive direction). Moving. That is, as the third permanent magnet 16F moves in the positive Y-axis direction, the distance between the S pole of the second permanent magnet 15F and the N pole of the third permanent magnet 16F moves to a position that becomes closer as shown in FIG.

  On the other hand, when the position adjusting unit 160 is rotated counterclockwise (in the direction of the arrow L) in the state of FIG. 15, the third permanent magnet 16 </ b> F moves down the space between the cylindrical member 190 and the housing 11 ( Move in the negative Y-axis direction). Specifically, the third permanent magnet 16F moves to the Y axis negative side on the inner peripheral side of the through hole of the second permanent magnet 15F. As shown in FIG. 14, as the third permanent magnet 16F moves in the negative Y-axis direction, the distance between the S pole of the second permanent magnet 15F and the N pole of the third permanent magnet 16F increases.

(Operations in the first and second modes)
In the vibration power generator 10E, when the distance between the second permanent magnet 15F and the third permanent magnet 16F is relatively large as shown in FIG. 14, the first mode is set. That is, the first mode is when the distance between the south pole of the second permanent magnet 15F and the north pole of the third permanent magnet 16F is relatively large.

  On the other hand, in the vibration power generator 10E, when the distance between the second permanent magnet 15F and the third permanent magnet 16F is relatively small as shown in FIG. That is, the second mode is when the distance between the south pole of the second permanent magnet 15F and the north pole of the third permanent magnet 16F is relatively small. Note that description of operations similar to those of the above-described embodiment is omitted as appropriate.

Regarding the operation in the first mode In the first mode, between the second permanent magnet 15F and the first permanent magnet 14, in the Y-axis direction, the magnetic force generated from the S pole above the second permanent magnet 15F, A repulsive force is generated with the magnetic force generated from the south pole of the lower portion of the opposing first permanent magnet 14. Due to the repulsive force between the first permanent magnet 14 and the second permanent magnet 15E, the mover 140 is always floating in the space 191 of the tubular member 190.

  Therefore, even if the vibration applied to the vibration power generator 10E is a relatively small vibration, the space 191 can be smoothly reciprocated.

  On the other hand, the movement range of the cylindrical member 190 of the mover 140 in the space portion 191 is a repulsive force between the first permanent magnet 14 and the second permanent magnet 15F in the lower portion (Y-axis negative side) of the space portion 191. Limited by.

  Thereby, even if the length in the Y-axis direction of the space portion 191 of the cylindrical member 190 is L10, the mover 140 reciprocates within a range of L11 in which the length in the Y-axis direction is smaller than L10. .

-Operation | movement of 2nd mode Next, operation | movement of the vibration generator 10E in 2nd mode is demonstrated using FIG. Since the distance between the S pole at the top of the second permanent magnet 15F and the top N pole at the third permanent magnet 16F is short, the magnetic force generated from the S pole at the top of the second permanent magnet 15F is the third in the Y-axis direction. It is attracted to the upper N pole of the permanent magnet 16F. Therefore, the repulsive force between the lower S pole of the first permanent magnet 14 and the upper S pole of the second permanent magnet 15F is weaker in the Y-axis direction than in the first mode of FIG.

  As a result, the repulsive force between the first permanent magnet 14 and the second permanent magnet 15F is weakened in the movement range of the space portion 191 of the cylindrical member 190 of the mover 140, so that the lower portion of the space portion 191 (Y-axis On the negative side), the second permanent magnet 15F can be moved close to the position where it is disposed.

  Note that the state of the lines of magnetic force in this second mode is as shown in FIG. A reference point C is defined near the boundary between the magnetic field lines from the N pole side of the first permanent magnet 14 and the magnetic field lines from the N pole side of the second permanent magnet 15F. Compared with FIG. 17A showing the magnetic field lines in the first mode, the reference point C is moved to the second permanent magnet 15F side by the length LC in the moving direction of the first permanent magnet 14. This also shows that the repulsive force between the N pole of the first permanent magnet 14 and the N pole of the second permanent magnet 15F is weakened.

  Thus, in the second mode, the mover 140 can reciprocate fully utilizing the range of the length L10 of the space 191 of the cylindrical member 190 in the Y-axis direction. Therefore, in the second mode, the range in which the mover 140 can move in the space 191 inside the cylindrical member 190 is larger than in the first mode. When the vibration power generator 10E is forcibly vibrated, the moving range of the mover 140 is increased, so that the power generation amount can be effectively increased.

  The vibration generator described above is not limited to the above-described embodiment, and various modifications may be made without departing from the scope of the present disclosure. The position adjustment unit is not limited to this embodiment, and can be operated from the outside of the housing of the vibration generator, for example, and provided with a slide member fixed to the second permanent magnet or the third permanent magnet. You may make it adjust the space | interval of a 2 permanent magnet and a 3rd permanent magnet.

  In addition, in the embodiment described above, the position adjusting unit is provided, but the position adjusting unit is not necessarily provided. Instead of the position adjustment unit, an elastically deformable lid may be provided. For example, the third permanent magnet is fixed inside the lid portion, and the lid portion is deformed by pressing the lid portion downward (Y-axis negative side) upward (Y-axis positive side). May be moved. In this case, the lid corresponds to the position adjusting means of the present invention.

  Further, although not particularly shown between the mover and the second permanent magnet, a cushioning material may be arranged for reducing the collision between the mover and the second permanent magnet due to forced vibration. Examples of the buffer material include isobrene rubber, nitrile rubber, butadiene rubber and the like.

10, 10A, 10B, 10C, 10D, 10E Vibration generator 11, 11A Housing 12 Electromagnetic induction coil 14, 14D First permanent magnet 15, 15A, 15B, 15C, 15D, 15E, 15F Second permanent magnet 16, 16A , 16B, 16C, 16D, 16E, 16F Third permanent magnet 140 Movable element 160, 160A, 160B, 160C, 160D Position adjustment part 190 Cylindrical member 191, 191A, 191B Space part

Claims (9)

A mover capable of reciprocating along the guide member and having a first permanent magnet;
A coil that generates an induced electromotive force by reciprocating movement of the mover;
A second permanent magnet which is provided so that the same pole as the first permanent magnet is opposed and restricts the movement of the mover;
A vibration generator comprising a third permanent magnet provided so as to be in a magnetizing direction opposite to a magnetizing direction of the second permanent magnet in the moving direction of the mover;
A position adjusting means capable of adjusting an arrangement position of at least one of the second permanent magnet and the third permanent magnet in the moving direction of the mover;
At least one of the second permanent magnet and the third permanent magnet is provided so that its position can be adjusted in the moving direction of the mover by operating the position adjusting means. Generator.   The third permanent magnet is opposite to the side on which the mover is provided with respect to the second permanent magnet in the moving direction of the mover so that the same pole as the second permanent magnet faces. The vibration generator according to claim 1, wherein the vibration generator is provided. Either one of the second permanent magnet and the third permanent magnet is formed in a cylindrical shape having a through hole,
The other of the second permanent magnet and the third permanent magnet is moved by moving the inside of the through hole relatively in the moving direction of the mover by operating the position adjusting means. The vibration generator according to claim 1, wherein the vibration generator is adjustable. The arrangement of the second permanent magnet is fixed in the moving direction of the mover,
4. The vibration generator according to claim 1, wherein the third permanent magnet is provided so that its arrangement can be adjusted in the moving direction of the mover. 5. The second permanent magnet is provided on one side with respect to the mover in the moving direction of the mover,
5. The vibration power generation according to claim 1, wherein the third permanent magnet is provided on the one side of the second permanent magnet so that the same pole as the second permanent magnet is opposed to the third permanent magnet. Machine. The second permanent magnet is provided on both sides of the mover in the moving direction of the mover,
The vibration according to any one of claims 1 to 5, wherein the third permanent magnet is provided so that the same polarity as the second permanent magnet is opposed to each of the second permanent magnets. Generator.   7. The vibration generator according to claim 1, wherein a length of the second permanent magnet is shorter than a length of the first permanent magnet in a moving direction of the mover. . With a cylindrical housing,
The guide member is a cylindrical member provided in the housing,
The coil is wound along the cylindrical member,
The vibration generator according to claim 1, wherein the mover reciprocates inside the coil. The position adjusting means includes at least a fixing portion that is fixed to either the second permanent magnet or the third permanent magnet, and a screw portion that is screwed into a screw groove formed on an outer periphery of the housing.
At least one of the second permanent magnet and the third permanent magnet is provided so that its arrangement can be adjusted in the moving direction of the mover by rotating a screw portion of the position adjusting means. The vibration generator according to claim 8.

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