WO2011102451A1

WO2011102451A1 - Oscillating power generator

Info

Publication number: WO2011102451A1
Application number: PCT/JP2011/053469
Authority: WO
Inventors: 亮也高橋; 竜太飯島
Original assignee: ブラザー工業株式会社
Priority date: 2010-02-22
Filing date: 2011-02-18
Publication date: 2011-08-25
Also published as: JP2011172428A; JP5327095B2

Abstract

Disclosed is an oscillating power generator using electromagnetic induction. In said oscillating power generator, magnetic leakage to the outside is reduced; the magnetic flux from a permanent magnet going through a coil is increased in density, thereby increasing power-generation efficiency; and connecting members, such as wires electrically connecting a capacitor to electrodes, are reduced. The disclosed oscillating power generator is provided with a cylindrical member (40), comprising a magnetic material, and a conductive material outside the coil (60). An induced current generated in the coil is supplied to an electricity-storage unit (90), which is electrically connected to a negative electrode (30) via the cylindrical member (40).

Description

Vibration generator

The present invention relates to a vibration generator that obtains electric power from an induced electromotive voltage generated when the relative position of a permanent magnet and a coil changes.

Conventionally, there has been known an electromagnetic induction type vibration generator that obtains electric power from an induced electromotive voltage generated by a permanent magnet moving inside a coil. In an electromagnetic induction type vibration power generator, an induced electromotive voltage is generated in the coil as the magnetic flux penetrating the coil changes with time. An induced current flows through the coil due to the induced electromotive voltage generated in the coil. The induced current flowing through the coil is rectified by a rectifying element such as a diode, and the rectified induced current is supplied to a passive element such as a capacitor. Electric charges are stored in the capacitor by the supplied induced current.

An example of an electromagnetic induction type vibration generator is a simple generator described in Patent Document 1. In the simple power generator described in Patent Document 1, since the closed magnetic circuit forming member made of a magnetic material is arranged outside the coil, the magnetic flux generated by the permanent magnet is attracted to the closed magnetic circuit forming member. As a result, the magnetic flux density penetrating the coil is increased as compared with the case where no magnetic material is provided outside the coil.

Japanese Patent Laid-Open No. 7-177718

Usually, it is conceivable that the vibration generator including the simple generator described in Patent Document 1 is used as a power source for a simple portable small electronic device. Small electronic devices are required to have a small power source with good power generation efficiency. For this reason, the size of the entire power source needs to be reduced to the size of a dry cell. However, although the simple power generator described in Patent Document 1 can increase the power generation efficiency by providing a closed magnetic circuit forming member, it is configured to connect the capacitor and each electrode with a conductive wire. It is necessary to secure a space for wiring inside the simple generator. As a result, when the arrangement space of the closed magnetic circuit forming member and the wiring space of the conducting wire are provided in a narrow internal space of the simple power generator, for example, the volume of the permanent magnet is reduced by the amount of the wiring space of the conducting wire. The amount of magnetic flux decreases. Therefore, there is a problem that the power generation efficiency is lowered due to securing the wiring space of the conducting wire.

The present invention has been made in order to solve the above-described problems, and reduces the magnetic leakage to the outside and increases the power generation efficiency by increasing the magnetic flux of the permanent magnet that penetrates the coil. It is an object of the present invention to provide a vibration generator that can reduce the number of connecting members such as conducting wires that are electrically connected to electrodes, that is, eliminate the need for connecting members or shorten the length of connecting members.

In order to achieve the above object, a vibration generator according to claim 1 includes a first cylindrical member made of a conductive material and a magnetic material, and both ends of the first cylindrical member in the longitudinal direction. A first electrode portion provided on one end side of the first electrode member and electrically insulated from the first cylindrical member; provided on the other end side of the first cylindrical member; and A second electrode portion electrically connected to the one cylindrical member, a second cylindrical member made of a nonmagnetic material and housed in the first cylindrical member, and the second cylindrical shape A mover including a permanent magnet movably installed along the longitudinal direction inside the member; a coil wound around an outer peripheral surface of the second tubular member; the second tubular member; Between the first electrode part or between the second cylindrical member and the second electrode part, the reciprocating movement of the mover More, between the rectifying unit that rectifies the induced current generated in the coil, and between the second cylindrical member and the first electrode unit, or between the second cylindrical member and the second electrode unit. An electric storage unit that is disposed and stores electric charge by an induced current rectified by the rectifying unit, and is electrically connected to the first electrode unit and the second electrode unit, and includes one end of the electric storage unit and the The first electrode part is electrically connected, and the other end of the power storage part and the second electrode part are electrically connected via the first cylindrical member.

The vibration generator according to claim 2 is the vibration generator according to claim 1, wherein the second electrode portion and the first cylindrical member are separate members, and the second electrode portion is A contact portion that contacts the first cylindrical member is provided, and the second electrode portion and the contact portion are integrally formed.

According to a third aspect of the present invention, in the vibration power generator according to the second aspect, the second electrode portion having the contact portion includes an elastic body, and the contact portion is the first cylindrical shape. It is biased in a direction toward the inner surface of the member.

According to a fourth aspect of the present invention, there is provided the vibration power generator according to the second aspect, wherein the screw is fitted between the contact portion and the inner surface of the first cylindrical member that contacts the contact portion. The first tubular member and the second electrode portion are electrically connected by the screw fitting portion.

The vibration generator according to claim 5 is the vibration generator according to claim 1, wherein at least one of the first electrode portion and the second electrode portion is made of a conductive material and a nonmagnetic material. It is characterized by.

The vibration generator according to claim 6 is the vibration generator according to claim 1, wherein the first cylindrical member and the second electrode portion are integrally formed from the same material which is a conductive material and a magnetic material. It is characterized by being formed.

The vibration generator according to claim 7 is the vibration generator according to claim 6, further comprising a spacer member made of a nonmagnetic material between the second electrode portion and the second cylindrical member. And

The vibration generator according to claim 8 is the vibration generator according to claim 1, wherein the first cylindrical member also serves as a housing of the vibration generator.

The vibration generator according to claim 9 is the vibration generator according to claim 1, wherein the coil is made of a plurality of element coils, and is made of a nonmagnetic material that partitions the plurality of element coils in the longitudinal direction. It is provided with a partition part.

According to the vibration generator of the first aspect, the magnetic flux generated by the permanent magnet is attracted to the first cylindrical member made of a conductive material and a magnetic material. Therefore, since the magnetic flux density penetrating the coil can be increased, the power generation efficiency is improved. Since the 1st cylindrical member serves as electrical connection with an electrical storage part and a 2nd electrode part, connection members, such as a lead wire which electrically connects an electrical storage part and the 2nd electrode part, can be reduced. . Further, since the mover is housed in the first cylindrical member made of a magnetic material, the magnetic flux emitted from the permanent magnet can be shielded by the first cylindrical member, so that the magnetic shield function is achieved. You can also Therefore, the influence of magnetism on the outside of the generator can be reduced.

According to the vibration generator of claim 2, the second electrode portion and the first cylindrical member are made of separate members, and the second electrode portion is in contact with the first cylindrical member. A contact portion is provided, and the second electrode portion and the contact portion are integrally formed. Therefore, it is possible to reduce the number of connecting members such as a conducting wire that electrically connects the first cylindrical member and the second electrode portion. Moreover, the process of electrically connecting the first cylindrical member and the second electrode portion can be reduced.

According to the vibration power generator of the third aspect, the second electrode portion having the contact portion has an elastic body, and the contact portion is urged in a direction toward the inner surface of the first cylindrical member. Therefore, the process of electrically connecting the first cylindrical member and the second electrode portion can be reduced. In addition, even when the vibration generator is attached to a power supply unit of an electronic device with low power consumption, for example, an electronic device such as a remote controller, or when the vibration generator itself is vibrated, the contact portion is not Since it is urged and connected in the direction toward the inner surface of the first tubular member, poor electrical contact between the first tubular member and the second electrode portion can be reduced.

According to the vibration power generator of the fourth aspect, the screw fitting portion for screw fitting is provided between the contact portion and the inner surface of the first cylindrical member in contact with the contact portion. The first cylindrical member and the second electrode portion are electrically connected by the joint portion. Therefore, the process of electrically connecting the first cylindrical member and the second electrode portion can be reduced. Also, when the vibration generator is attached to a power source of an electronic device with low power consumption, for example, a remote control, and is vibrated, or even when the vibration generator itself is vibrated, the screw fit Since the first cylindrical member and the second electrode portion are electrically connected by the portion, it is possible to reduce electrical contact failure between the first cylindrical member and the second electrode portion.

According to the vibration generator of claim 5, since at least one of the first electrode portion and the second electrode portion is made of a conductive material and a non-magnetic material, a magnetic attractive force is formed between the mover and the magnetic generator. Will not work. Therefore, since at least one of the electrode members does not hinder the movement of the mover, it is possible to suppress a decrease in power generation efficiency.

According to the vibration power generator of the sixth aspect, since the second electrode portion and the first cylindrical member are integrally formed from the same material that is a conductive material and a magnetic material, the second electrode There is no need to connect the part and the first tubular member. Accordingly, the number of steps for electrically connecting the first cylindrical member and the second electrode portion can be reduced, and the number of parts constituting the vibration power generator can be reduced. Even when the vibration generator is attached to a power supply unit of an electric device such as a flashlight and is vibrated, or when the vibration generator itself is vibrated, the second electrode portion and the first cylindrical shape are used. Since the member is integrally formed from the same material, which is a conductive material and a magnetic material, poor electrical contact between the second electrode portion and the first cylindrical member can be reduced.

According to the vibration generator of the seventh aspect, the nonmagnetic spacer member is provided between the second electrode portion made of a magnetic material and the permanent magnet. Therefore, it is possible to prevent the permanent magnet from being attracted to the second electrode portion by magnetic attraction. Therefore, since the movement of the mover is not hindered, it is possible to suppress a decrease in power generation efficiency.

According to the vibration generator of the eighth aspect, the first cylindrical member also serves as the casing. Therefore, the number of parts constituting the vibration generator can be reduced. Furthermore, since the process of assembling the casing and the first cylindrical member is not necessary, the vibration generator can be easily manufactured. Further, the thickness of the first cylindrical member that also serves as the housing is less than the sum of the thickness of the first tubular member and the thickness of the housing when the first tubular member does not serve as the housing. If there is, the space inside the vibration generator is increased by the first cylindrical member also serving as the housing, so that the permanent magnet can be enlarged. Therefore, since the magnetic flux of the permanent magnet increases, the power generation efficiency can be increased.

According to the vibration generator of the ninth aspect, a plurality of element coils constituting the coil and a partition portion of a nonmagnetic material that partitions the element coil in the longitudinal direction are provided. Therefore, since the magnetic flux generated by the permanent magnet penetrates the coil without being attracted to the partition portion of the nonmagnetic material, the power generation efficiency can be increased.

1 is a perspective view showing an external appearance of a vibration power generator 1 according to a first embodiment of the present invention. It is a longitudinal cross-sectional view which shows the internal structure of the vibration generator 1 which concerns on 1st Embodiment. It is a perspective view which shows the external appearance of the cylindrical member 40 which concerns on 1st Embodiment. It is a perspective view showing the appearance of minus electrode 30 concerning a 1st embodiment. It is a perspective view which shows the external appearance of the bobbin case 50, the bobbin case fixing member 51, and the coil 60 which concern on 1st Embodiment. It is a perspective view which shows the external appearance of the electrical storage circuit connection member 42 which concerns on 1st Embodiment. 1 is a perspective view showing the appearance of a plus electrode 20 and a plus electrode side cap 21 according to a first embodiment. It is an enlarged vertical sectional view of the vibration generator 1 on the positive electrode 20 side according to the first embodiment. 1 is an electric circuit diagram of a vibration generator 1 according to a first embodiment. It is a perspective view which shows the external appearance of the vibration generator 200 which concerns on the 2nd Embodiment of this invention. It is a longitudinal cross-sectional view which shows the internal structure of the vibration generator 200 which concerns on 2nd Embodiment. It is a perspective view which shows the external appearance of the vibration generator 300 which concerns on the 3rd Embodiment of this invention. It is a longitudinal cross-sectional view which shows the internal structure of the vibration generator 300 which concerns on 3rd Embodiment. It is a perspective view which shows the external appearance of the cylindrical member 340 which concerns on 3rd Embodiment. FIG. 10 is a perspective view showing the appearance of a negative electrode 330 and a negative electrode side cap 331 according to the third embodiment. It is the figure which looked at the minus electrode side cap 331 which concerns on 3rd Embodiment from the down side of the up-down direction. It is a perspective view which shows the external appearance of the vibration generator 400 which concerns on the 4th Embodiment of this invention. It is a longitudinal cross-sectional view which shows the internal structure of the vibration generator 400 which concerns on 4th Embodiment. It is a perspective view which shows the external appearance of the cylindrical member 440 which concerns on 4th Embodiment. It is a perspective view which shows the external appearance of the spacer member 431 which concerns on 4th Embodiment. It is a longitudinal cross-sectional view which shows the internal structure of the vibration generator 500 which concerns on a modification. FIG. 10 is an enlarged longitudinal sectional view of a vibration generator 600 on the plus electrode 620 side according to a modification. It is a perspective view showing appearance of plus electrode 620 and plus electrode side cap 621 concerning a modification. It is a longitudinal cross-sectional view which shows the internal structure of the vibration generator 700 which concerns on a modification. 3 is a perspective view showing an external appearance of a negative electrode 830. FIG. It is a perspective view which shows the external appearance of the bobbin case 850. It is the figure which simulated distribution of magnetic flux by mover 70A when division part 52A is formed from a nonmagnetic material. It is the figure which simulated the distribution of the magnetic flux by the needle | mover 70B in case the division part 52B is formed from a magnetic material. It is a simulation figure about distribution of magnetic flux by mover 70C in case cylindrical member 40C exists. It is a simulation figure about distribution of magnetic flux by mover 70C when cylindrical member 40C does not exist.

[First embodiment]
Hereinafter, a first embodiment of the present invention will be described in detail with reference to FIGS.

(Configuration of the first embodiment)
FIG. 1 is an external view of a vibration generator 1 according to a first embodiment of the present invention. The vibration power generator 1 includes a housing 10 and includes a first electrode portion on the upper end side of the housing 10 and a second electrode portion on the lower end side. In the following description, in the first embodiment, the first electrode portion is described as a positive electrode 20 and the second electrode portion is described as a negative electrode 30. The vertical direction in the first embodiment is the direction indicated by the arrows in FIG. The same applies to the vertical direction of other drawings. Below, the structure of each part of the vibration generator 1 is demonstrated.

FIG. 2 is a longitudinal sectional view showing the internal configuration of the vibration generator 1 cut along a plane in the vertical direction. As shown in FIG. 2, the vibration generator 1 includes a first cylindrical member, a second cylindrical member, a coil 60, a mover 70, a rectifier 80, Part 90. In the following description, in the first embodiment, the first cylindrical member is described as a cylindrical member 40 and the second cylindrical member is described as a bobbin case 50.

In the first embodiment, the housing 10 is formed in substantially the same shape as a cylindrical shape of a general dry battery. The housing 10 is made of a material such as an ABS resin which is an insulating material and a nonmagnetic material.

FIG. 3 is an external perspective view of the cylindrical member 40. The cylindrical member 40 has a cylindrical shape and is formed to extend in the longitudinal direction from one end to the other end. In a state where the cylindrical member 40 is disposed inside the housing 10, the longitudinal direction of the cylindrical member 40 coincides with the vertical direction. The cylindrical member 40 is fixed to the casing 10 with an adhesive or the like in a state where the inner peripheral surface of the casing 10 and the outer peripheral surface of the cylindrical member 40 are in close contact with each other. A female screw 41 is provided on the inner peripheral surface of the lower end portion of the cylindrical member 40. The cylindrical member 40 is made of a conductive material and a magnetic material such as iron.

FIG. 4 is an external perspective view of the negative electrode 30. The negative electrode 30 is formed in a cylindrical shape. A collar 31 is provided at the lower end of the negative electrode 30. A male screw 32 is provided on the cylindrical outer peripheral surface of the negative electrode 30. In FIG. 1, the negative electrode 30 is fixed to the cylindrical member 40 by screwing a male screw 32 and a female screw 41 of the cylindrical member 40. In a state where the negative electrode 30 is fixed to the cylindrical member 40, the collar 31 contacts the lower end surface of the cylindrical member 40 and the lower end surface of the housing 10. In the negative electrode 30, a cylindrical outer peripheral portion in which the male screw 32 is formed is an example of the contact portion of the present invention. The male screw 32 and the female screw 41 are an example of the screw fitting portion of the present invention.

In FIG. 4, the bobbin case support portion 33 is formed on the cylindrical portion of the negative electrode 30. The bobbin case support part 33 consists of a circular recessed part, and is open | released upwards. The negative electrode 30, the collar 31, the male screw 32, and the bobbin case support portion 33 are integrally formed from a material such as copper, which is a conductive material and a nonmagnetic material.

FIG. 5 is an external perspective view of a cylindrical bobbin case 50 provided with a coil 60 and a bobbin case fixing member 51. The internal space X described in FIG. 2 is provided inside the bobbin case 50 along the vertical direction. In FIG. 5, four partition parts 52 are provided on the outer peripheral surface 53 of the bobbin case 50. The four partition parts 52 partition the outer peripheral surface 53 at a predetermined interval. An interval in the vertical direction between two adjacent partition portions 52 is an interval L. The bobbin case 50 and the partition 52 are made of an insulating material and a nonmagnetic material such as ABS resin.

In FIG. 5, the coil 60 includes a plurality of element coils 61. Each element coil 61 is provided in each partition area partitioned by two partition sections 52 adjacent in the vertical direction. The coil 60 is configured by winding a single coated wire around the outer peripheral surface 53 of the bobbin case 50 over a plurality of partitioned regions. In the first embodiment, the coil 60 includes three element coils 61 provided in three partitioned regions. In order to increase the power generation efficiency, the conductors of the element coil 61 are wound in directions opposite to each other in partitioned regions adjacent in the vertical direction. For example, the direction in which the conducting wire of the element coil 61 is wound is clockwise, counterclockwise, or clockwise when viewed from the lower side in the vertical direction. In FIG. 2, in a state where the coil 60 is provided on the bobbin case 50, the outer peripheral portion of the coil 60 and the conductive wire 100 drawn from both upper and lower ends of the coil 60 are fixed with an adhesive material such as a cover film.

In FIG. 2, with the coil 60 provided on the bobbin case 50, the lower end 56 of the bobbin case 50 is press-fitted into the bobbin case support 33, and the bobbin case 50 is fixed to the negative electrode 30.

In FIG. 2, the mover 70 is provided with a columnar or cylindrical permanent magnet, and is arranged in the inner space X of the bobbin case 50 whose lower end is sealed by the minus electrode 30 in a state in which the magnetization direction and the vertical direction coincide with each other. Is done. In order to increase the power generation efficiency, the length of the mover 70 in the vertical direction is preferably the same as the interval L between the two adjacent partition portions 52. Specifically, the permanent magnet is composed of an alnico magnet, a ferrite magnet, a samarium cobalt magnet, a neodymium magnet, or the like.

In FIG. 5, the cylindrical bobbin case fixing member 51 is made of an insulating material and a material such as ABS resin which is a nonmagnetic material so as not to hinder the movement of the mover 70. An insertion port 55 is provided open below the bobbin case fixing member 51. A wiring passage 54 through which the conducting wire 100 is inserted is provided in the bobbin case fixing member 51 along the vertical direction. The mover 70 is disposed inside the bobbin case 50, and the upper end 57 of the bobbin case 50 is press-fitted into the insertion port 55 in a state where the conductive wires 100 extending from the upper and lower ends of the coil 60 are inserted into the wiring passage 54. Accordingly, the bobbin case fixing member 51 is fixed to the bobbin case 50.

In FIG. 2, the mover 70 can move in the vertical direction in the internal space X of the bobbin case 50 sealed by the negative electrode 30 and the bobbin case fixing member 51.

FIG. 6 is an external perspective view of the storage circuit connecting member 42. As shown in FIG. 6, the power storage circuit connecting member 42 includes an upper plate portion 43, a side plate portion 44, and a bottom plate portion 45. The storage circuit connecting member 42 is made of a conductive material and a nonmagnetic material such as copper. The power storage circuit connecting member 42 has a shape having an elastic force by the upper plate portion 43 and the side plate portion 44. The upper plate portion 43 is formed by cutting upward from the bottom plate portion 45. The side plate portion 44 is formed by hanging from the side portion of the bottom plate portion 45. The bottom plate portion 45 is fixed to the upper surface of the bobbin case fixing member 51 with an adhesive. With the bottom plate portion 45 fixed to the upper surface of the bobbin case fixing member 51, the side plate portion 44 is connected to the inner peripheral surface of the upper portion of the cylindrical member 40 by a conductive adhesive such as silver paste. Therefore, the storage circuit connecting member 42 and the cylindrical member 40 are electrically connected. Further, since the side plate portion 44 has elasticity, the side plate portion 44 is urged against the inner surface of the cylindrical member 40 in a state where the side plate portion 44 and the inner peripheral surface of the upper portion of the cylindrical member 40 are connected. .

FIG. 7 is an external view of the plus electrode 20 and the plus electrode side cap 21. The cylindrical positive electrode side cap 21 is made of an insulating material and a material such as ABS resin which is a nonmagnetic material. As shown in FIG. 7, the wiring hole 24 is provided on the upper surface of the plus electrode side cap 21.

FIG. 8 is an enlarged longitudinal sectional view of the vibration generator 1 on the positive electrode 20 side in FIG. As shown in FIG. 8, the substrate attachment portion 25 is provided on the side surface inside the plus electrode side cap 21. The substrate 12 is fixed to the lower portion of the substrate mounting portion 25 with an adhesive. The rectifying unit 80 and the power storage unit 90 are provided on the substrate 12. More specifically, the rectifying unit 80 is constituted by a diode. The power storage unit 90 includes a capacitor. The rectifying unit 80 includes an input side terminal 80a and

output side terminals

80b and 80c. The power storage unit 90 includes a positive electrode side terminal 90a and a negative electrode side terminal 90b. The positive electrode side terminal 90a is electrically connected to the output side terminal 80b on the substrate 12 by a conductive wire. The negative electrode side terminal 90b is electrically connected to the output side terminal 80c by a conducting wire. In a state where the substrate 12 is fixed to the lower portion of the substrate mounting portion 25 with an adhesive, the plus electrode side terminal 90 a is inserted through the wiring hole 24. The positive electrode side terminal 90a is an example of one end of the power storage unit of the present invention. The negative electrode side terminal 90b is the other end of the power storage unit of the present invention.

The cylindrical positive electrode 20 is made of a conductive material and a nonmagnetic material such as copper. As shown in FIG. 7, the plus electrode mounting portion 22 is provided on the bottom surface of the plus electrode 20. A connection hole 23 is provided in the plus electrode attachment portion 22. The plus electrode 20, the plus electrode mounting portion 22, and the connection hole 23 are integrally formed.

The positive electrode 20 is fixed to the positive electrode side cap 21 by bonding the lower surface of the positive electrode mounting portion 22 and the upper surface of the positive electrode side cap 21 with an adhesive. In this bonded state, as shown in FIG. 2, the center line of the plus electrode 20 and the center line of the plus electrode side cap 21 coincide with each other in the vertical direction. Further, the plus electrode side terminal 90 a passes through the wiring hole 24 and the connection hole 23. The positive electrode side terminal 90a and the positive electrode attachment portion 22 around the connection hole 23 are electrically connected by solder. Therefore, the plus electrode side terminal 90a and the plus electrode 20 are electrically connected. Furthermore, since the plus electrode side terminal 90a is electrically connected to the output side terminal 80b, the plus electrode 20 is also electrically connected to the output side terminal 80b.

In a state where the positive electrode side terminal 90a and the positive electrode 20 are electrically connected, the conductive wire 100 from both ends of the coil 60 is electrically connected to the input side terminal 80a of the rectifying unit 80 and the substrate 12 by solder. . In this state, as shown in FIG. 2, the upper end portion of the housing 10 and the lower portion of the plus electrode side cap 21 provided with the substrate 12 and the plus electrode 20 are fixed by an adhesive. In a state where the housing 10 and the plus electrode side cap 21 are fixed, the upper plate portion 43 of the energy storage circuit connecting member 42 is urged upward to come into contact with the minus electrode side terminal 90b. Accordingly, the negative electrode side terminal 90 b is electrically connected to the cylindrical member 40 via the storage circuit connecting member 42. Further, since the cylindrical member 40 and the negative electrode 30 are electrically connected via the female screw 41 and the male screw 32, the negative electrode side terminal 90b is electrically connected to the negative electrode 30. Further, since the negative electrode side terminal 90b is electrically connected to the output side terminal 80c by a conducting wire, the negative electrode 30 is also electrically connected to the output side terminal 80c.

(Operation of the first embodiment)
From here, the mechanism for obtaining power will be described. First, the main points of the principle of vibration power generation will be explained. In FIG. 2, when the magnetic flux passing through the coil 60 changes with time, an induced electromotive voltage is generated in the coil 60. The value of the induced electromotive voltage is a value obtained by adding “−1” to a value obtained by dividing the amount of change in magnetic flux with the passage of time by the amount of change in time. An induced current flows through the coil 60 due to the induced electromotive voltage.

Therefore, in order to improve the power generation efficiency in the vibration power generator 1, the amount by which the magnetic flux changes with the passage of time may be increased. For this purpose, it is conceivable to increase the magnetic flux penetrating the coil 60 or to increase the moving speed of the mover 70.

When the user shakes the vibration generator 1, the relative position between the mover 70 and the coil 60 changes. Accordingly, the magnetic flux passing through the coil 60 changes, and an induced electromotive voltage is generated in the coil 60 according to the principle described above. Further, an induced current flows through the coil 60 by the generated induced electromotive voltage.

FIG. 9 is an electric circuit diagram of the vibration generator 1. When the mover 70 reciprocates inside the bobbin case 50, an alternating current is generated in the coil 60. As shown in FIG. 9, the generated alternating current is rectified by the rectifying unit 80 connected by the conducting wire 100 to become direct current. The rectified direct current is stored in the power storage unit 90.

In the first embodiment, the positive electrode side terminal 90 a of the power storage unit 90 is connected to the positive electrode 20. The negative electrode side terminal 90b of the power storage unit 90 is connected to the negative electrode 30 through the power storage circuit connecting member 42 and the cylindrical member 40 in this order. Electric power obtained by vibration power generation is supplied to an external load via the plus electrode 20 and the minus electrode 30.

In the first embodiment, the magnetic flux generated by the mover 70 is attracted to the cylindrical member 40 made of a material such as iron, which is a conductive material disposed outside the bobbin case 50 and is a magnetic material. Thereby, the magnetic flux density which penetrates a coil increases compared with when not providing a magnetic material on the outer side of a coil. Accordingly, the power generation efficiency is improved as compared with the case where no magnetic material is provided outside the coil. Furthermore, since the negative electrode 90b and the negative electrode 30 of the power storage unit 90 are electrically connected via the cylindrical member 40, a connection member for electrically connecting the power storage unit 90 and the negative electrode 30 is not necessary. Or the length of the connecting member can be shortened. Accordingly, the space for arranging the connection member for electrically connecting the power storage unit 90 and the negative electrode 30 in the vibration generator 1 is reduced. As a result, for example, the volume of the permanent magnet provided in the mover 70 is increased by the wiring space of the connecting member, so that the amount of magnetic flux generated by the permanent magnet increases. Therefore, the power generation efficiency is improved.

In the first embodiment, the negative electrode 30 and the cylindrical member 40 are made of different members. Further, the negative electrode 30 includes a contact portion that contacts the cylindrical member 40. The negative electrode 30 and the contact portion are integrally formed from the same material. Therefore, it is possible to reduce the number of connecting members such as a conducting wire that electrically connects the cylindrical member 40 and the negative electrode 30.

In the first embodiment, the male screw 32 is provided on the cylindrical outer peripheral surface of the negative electrode 30. A female screw 41 that can be screwed with the male screw 32 is provided on the inner peripheral surface of the lower end portion of the cylindrical member 40. The cylindrical member 40 and the negative electrode 30 are electrically connected by screw fitting. Therefore, even when the vibration generator 1 is attached to a power supply unit of an electronic device with low power consumption, for example, an electronic device such as a remote controller, or is vibrated, or even when the vibration generator itself is vibrated, it is screwed. Thus, since the cylindrical member 40 and the negative electrode 30 are electrically connected, the poor electrical contact between the cylindrical member 40 and the negative electrode 30 can be reduced.

In the first embodiment, the rectifying unit 80 and the power storage unit 90 are provided between the bobbin case 50 and the plus electrode 20. In FIG. 8, since the length of the conducting wire between the rectifying unit 80 and the power storage unit 90 is shortened, the rectifying unit 80 and the power storage unit 90 can be provided on one substrate 12. In FIG. 2, the length of the bobbin case 50 in the vertical direction is increased in a region surrounded by the housing 10, the positive electrode side cap 21, and the negative electrode 20. Therefore, since the internal space X in which the mover 70 can move in the vertical direction is increased, the moving speed of the mover 70 is increased, thereby increasing the amount of magnetic flux that changes with time, thereby improving the power generation efficiency. It is possible to simultaneously reduce the connecting member that electrically connects the power storage unit 90 and the plus electrode 20 and the connecting member that electrically connects the power storage unit 90 and the minus electrode 30.

In the first embodiment, the mover 70 is housed in the cylindrical member 40 made of a magnetic material. Therefore, since the cylindrical member 40 can shield the magnetic flux generated by the mover 70, it can function as a magnetic shield. For example, when the vibration generator 1 is attached to a power supply unit of an electronic device such as a remote controller, magnetic leakage to the outside of the vibration generator can be reduced. Therefore, the influence of magnetism on the inside of the electronic device can be suppressed.

FIG. 29 is a diagram simulating the magnetic flux distribution of the mover 70C by arranging the cylindrical member 40C, which is a conductive material and a magnetic material. FIG. 30 is a diagram simulating the distribution of magnetic flux by the mover 70C when the cylindrical member 40C is not disposed. 29 and 30, the mover 70 </ b> C is configured by a cylindrical permanent magnet, and the magnetization direction is parallel to the vertical direction shown in FIGS. 29 and 30. In the simulation, the distribution of magnetic flux in an arbitrary plane extending in the radial direction of the mover 70C from the center line S parallel to the vertical direction of the mover 70C is shown. In FIG. 30, the region R in which the cylindrical member is arranged in FIG. 29 is represented by a dotted line. It should be noted that the configuration of the vibration generator in which the simulation is performed does not completely match the configuration of the first embodiment. Further, members other than the mover 70C and the cylindrical member 40C are omitted. Comparing FIG. 29 and FIG. 30, the spread of the magnetic flux is suppressed by arranging the cylindrical member 40C. Further, the magnetic flux is attracted toward the cylindrical member 40C. Therefore, it can be seen from the simulations shown in FIGS. 29 and 30 that the magnetic flux density between the mover 70C and the cylindrical member 40C is increased. In addition, it can be seen that by arranging the cylindrical member 40, the magnetic flux generated by the movable element 70C is confined by the cylindrical member 40C and is not leaked to the outside. Therefore, it can be confirmed that the cylindrical member 40C functions as a magnetic shield. These phenomena are realized by appropriately selecting the strength of the permanent magnet, and appropriately selecting the material of the cylindrical member that is a conductive material and is a magnetic material.

In the first embodiment, the side plate portion 44 is attached to the inner surface of the cylindrical member 40 by an elastic force in a state where the side plate portion 44 and the inner peripheral surface of the upper portion of the cylindrical member 40 are connected by a conductive adhesive. Be forced. Therefore, even when the vibration generator 1 is vibrated, the conductive adhesive is not easily peeled off.

In the first embodiment, since the bobbin case 50 is made of an insulating material and a non-magnetic material, no magnetic attractive force acts between the mover 70 and the bobbin case 50. Therefore, the movement of the mover 70 is not hindered by the magnetic attraction between the mover 70 and the bobbin case 50, and the power generation efficiency can be prevented from decreasing.

In the first embodiment, since the bobbin case fixing member 51 is formed of a nonmagnetic material, the movement of the mover 70 is not hindered by the magnetic attractive force between the mover 70 and the bobbin case fixing member 51, and It can suppress that efficiency falls.

In the first embodiment, the negative electrode 30 is made of a conductive material and a material such as copper which is a nonmagnetic material. Accordingly, no magnetic attractive force acts between the mover 70 and the negative electrode 30. Therefore, the movement of the mover 70 is not hindered by the magnetic attraction between the mover 70 and the plus electrode 20 and the magnetic attraction between the mover 70 and the minus electrode 30, and the power generation efficiency is reduced. Can be suppressed.

In order to verify how the magnetic flux distribution by the mover 70 changes depending on whether the partition 52 is formed of a magnetic material or a non-magnetic material in the first embodiment, A simulation was performed. Note that the configuration of the vibration generator that has been simulated does not completely match the configuration of the first embodiment. FIG. 27 is a diagram simulating the distribution of magnetic flux by the mover 70A when the partition 52A is formed of a nonmagnetic material. FIG. 28 is a diagram simulating the distribution of magnetic flux by the mover 70B when the partition 52B is formed of a magnetic material. As shown in FIG. 27, the mover 70A is arranged at a predetermined position with the magnetization direction and the vertical direction aligned. A cylindrical member 40A made of a magnetic material is arranged in parallel in the vertical direction. A partition portion 52A made of a nonmagnetic material is disposed at a predetermined interval in the vertical direction between the mover 70A and the cylindrical member 40A. The partition area M is an area partitioned by two partition parts 52A adjacent in the vertical direction. As shown in FIG. 28, the mover 70 </ b> B is disposed at a predetermined position with the magnetization direction and the vertical direction aligned. A cylindrical member 40B made of a magnetic material is arranged in parallel in the vertical direction. A partition portion 52B made of a magnetic material is disposed at a predetermined interval in the vertical direction between the mover 70B and the cylindrical member 40B. The partition area N is an area partitioned by two partition sections 52B adjacent in the vertical direction. Comparing the simulation results, it can be seen that the magnetic flux density penetrating the partition region M is higher than the magnetic flux density passing through the partition region N. In the first embodiment, each element coil 61 is provided in each partition region partitioned by partition portions 52 made of two nonmagnetic materials adjacent in the vertical direction. Therefore, as shown in the simulation result, the power generation efficiency is improved as compared with the case where the partition 52 is formed of a magnetic material. On the other hand, in patent document 1, the closed magnetic circuit formation member which consists of magnetic materials is accommodated in the inside of a casing. Two coils are stored in the inner wall portion of the closed magnetic circuit forming member, partitioned in the direction from the plus electrode to the minus electrode. Therefore, as shown in each simulation result, the power generation efficiency is lower than that in which the member that partitions the two coils is formed of a nonmagnetic material.

[Second Embodiment]
Next, a second embodiment of the present invention will be described with reference to FIGS.

(Configuration of Second Embodiment)
The second embodiment is a vibration power generator 200 in which a first tubular member serves as a housing. In the following description, the first cylindrical member is described as the cylindrical member 240 in the second embodiment. A description of the same parts as those in the first embodiment is omitted. In addition, parts having configurations different from those of the first embodiment are denoted by new reference numerals, and parts having the same configurations as those of the first embodiment are denoted by the same reference numerals as those of the first embodiment. FIG. 10 is an external view of the vibration power generator 200 in which the cylindrical member 240 according to the second embodiment of the present invention also serves as a housing.

The vibration power generator 200 includes a cylindrical member 240, and includes a plus electrode 20 on the upper end side of the cylindrical member 240 and a minus electrode 30 on the lower end side. The vertical direction in the second embodiment is the direction indicated by the arrow in FIG. The same applies to the vertical direction of other drawings. Below, the structure of each part of the vibration generator 200 is demonstrated.

FIG. 11 is a longitudinal sectional view showing the internal configuration of the vibration power generator 200 cut along a plane in the vertical direction. As shown in FIG. 11, the vibration power generator 200 includes a bobbin case 50, a coil 60, a mover 70, a rectifying unit 80, and a power storage unit 90 inside a cylindrical member 240.

In the second embodiment, the cylindrical member 240 is formed in substantially the same shape as the cylindrical shape of a general dry battery. More specifically, the cylindrical member 240 has a cylindrical shape and extends in the longitudinal direction from one end to the other end. The longitudinal direction of the cylindrical member 240 coincides with the vertical direction of the second embodiment. The cylindrical member 240 is made of a conductive material and a magnetic material such as iron. The outer peripheral surface of the cylindrical member 240 is coated with a coating material made of an insulating material. A female screw 241 is provided on the inner peripheral surface of the lower end portion of the cylindrical member 240.

The negative electrode 30 is fixed to the cylindrical member 240 by the male screw 32 and the female screw 241 of the cylindrical member 240 being screwed together. In a state where the negative electrode 30 is fixed to the cylindrical member 240, the collar 31 contacts the lower end surface of the cylindrical member 240.

In the second embodiment, the plus electrode 30, the bobbin case 50, the coil 60, the mover 70, the rectifying unit 80, and the power storage unit 90 have the same configuration as in the first embodiment, and thus detailed description thereof is omitted.

With the bottom plate portion 45 of the storage circuit connecting member 42 fixed to the upper surface of the bobbin case fixing member 51, the side plate portion 44 is connected to the inner peripheral surface of the upper portion of the cylindrical member 240 by a conductive adhesive such as silver paste. The Therefore, the storage circuit connecting member 42 and the cylindrical member 240 are electrically connected. Further, since the side plate portion 44 has elasticity, the side plate portion 44 is urged against the inner surface of the cylindrical member 240 in a state where the side plate portion 44 and the inner peripheral surface of the upper portion of the cylindrical member 240 are connected. .

In a state where the plus electrode side terminal 90a and the plus electrode 20 are electrically connected, the conductive wire 100 from both ends of the coil 60 is electrically connected to the input side terminal 80a of the rectifying unit 80 and the substrate 12 by solder. . In this state, as shown in FIG. 11, the upper end portion of the cylindrical member 240 and the lower portion of the plus electrode side cap 21 provided with the substrate 12 and the plus electrode 20 are fixed by an adhesive. In a state where the cylindrical member 240 and the plus electrode side cap 21 are fixed, the upper plate portion 43 of the energy storage circuit connecting member 42 is urged upward to come into contact with the minus electrode side terminal 90b. Accordingly, the negative electrode side terminal 90 b is electrically connected to the cylindrical member 240 via the storage circuit connecting member 42. Further, since the cylindrical member 240 and the negative electrode 30 are electrically connected via the female screw 241 and the male screw 32, the negative electrode side terminal 90b is electrically connected to the negative electrode 30. Further, since the negative electrode side terminal 90b is electrically connected to the output side terminal 80c by a conducting wire, the negative electrode 30 is also electrically connected to the output side terminal 80c.

The second embodiment has the same effect as the first embodiment. Furthermore, in the second embodiment, the cylindrical member 240 also serves as a housing. Therefore, the number of parts constituting the vibration generator 2 can be reduced. Furthermore, since the process of assembling the casing and the cylindrical member is not necessary, the vibration generator 2 can be easily manufactured. Moreover, if the thickness of the cylindrical member 240 is less than the thickness of the cylindrical member 40 and the thickness of the housing 10 of the first embodiment, the cylindrical member 240 also serves as the housing. Since the internal space increases, the permanent magnet can be enlarged. Therefore, since the magnetic flux of the permanent magnet increases, the power generation efficiency can be increased.

In the second embodiment, the outer peripheral surface of the cylindrical member 240 is coated with a coating material made of an insulating material. Therefore, when electric power is supplied from the negative electrode side terminal 90b to the negative electrode 30 via the cylindrical member 240, it is possible to prevent electric power from leaking from the cylindrical member 240 to the outside.

[Third embodiment]
Next, a third embodiment of the present invention will be described with reference to FIGS.

(Configuration of Third Embodiment)
Unlike the first embodiment, the third embodiment is a vibration power generator 300 in which the second electrode portion and the first cylindrical member are connected by a biasing force of a spring. In the following description, in the third embodiment, the second electrode portion is described as the negative electrode 330 and the first cylindrical member is described as the cylindrical member 340. A description of the same parts as those in the first embodiment is omitted. In addition, parts having configurations different from those of the first embodiment are denoted by new reference numerals, and parts having the same configurations as those of the first embodiment are denoted by the same reference numerals as those of the first embodiment. FIG. 12 is an external view of a vibration power generator 300 in which a negative electrode 330 and a cylindrical member 340 according to the third embodiment of the present invention are connected by a biasing force of a spring.

The vibration power generator 300 includes a housing 10 and includes a plus electrode 20 on the upper end side of the housing 10 and a minus electrode 330 on the lower end side. The vertical direction in the third embodiment is the direction indicated by the arrows in FIG. The same applies to the vertical direction of other drawings. Below, the structure of each part of the vibration generator 300 is demonstrated.

FIG. 13 is a longitudinal sectional view showing the internal configuration of the vibration power generator 300 cut along a plane in the vertical direction. As shown in FIG. 13, the vibration power generator 300 includes a cylindrical member 340, a bobbin case 50, a coil 60, a mover 70, a rectifying unit 80, and a power storage unit 90 inside the housing 10.

In the third embodiment, the housing 10, the plus electrode 20, the bobbin case 50, the coil 60, the mover 70, the rectifying unit 80, and the power storage unit 90 have the same configuration as in the first embodiment, and thus detailed description thereof. Is omitted.

FIG. 14 is an external perspective view of the cylindrical member 340. The cylindrical member 340 is cylindrical and is formed to extend in the longitudinal direction from one end to the other end. When the cylindrical member 340 is disposed inside the housing 10, the longitudinal direction of the cylindrical member 340 coincides with the vertical direction. The cylindrical member 340 is fixed to the housing 10 with an adhesive or the like in a state where the inner peripheral surface of the housing 10 and the outer peripheral surface of the cylindrical member 340 are in close contact with each other. The cylindrical member 340 is made of a conductive material and a material such as iron that is a magnetic material.

FIG. 15 is an external perspective view of the negative electrode 330 and the negative electrode side cap 331. As shown in FIG. 15, the negative electrode 330 is formed in a disk shape. A pair of spring portions 332 is formed on the upper surface of the negative electrode 330. The pair of spring portions 332 has a shape having an elastic force. The negative electrode 330 and the pair of spring portions 332 are integrally formed of a conductive material and a nonmagnetic material such as copper.

As shown in FIG. 15, the negative electrode side cap 331 is formed in a cylindrical shape from a material such as an ABS resin which is an insulating material and a nonmagnetic material. A bobbin case support portion 334 that supports the bobbin case 50 is formed inside the negative electrode side cap 331. The bobbin case support 334 is formed of a circular recess and is open upward.

FIG. 16 is a view of the negative electrode side cap 331 as viewed from the lower side in the vertical direction. As shown in FIG. 16, two insertion holes 333 into which the spring portion 332 is inserted are provided in the negative electrode side cap 331 along the vertical direction.

With the coil 60 provided in the bobbin case 50, the lower end 56 of the bobbin case 50 is press-fitted into the bobbin case support 334. Accordingly, the bobbin case 50 and the negative electrode side cap 331 are fixed. The negative electrode side cap 331 to which the bobbin case 50 is fixed is disposed inside a cylindrical member 340 bonded to the inner peripheral surface of the housing 10. In this state, the lower surface of the negative electrode side cap 331 is disposed on the lower end surface of the cylindrical member 340. The spring portion 332 is inserted into the insertion hole 333. In this state, the spring portion 332 is biased toward the inner peripheral surface of the cylindrical member 340. By this urging, the cylindrical member 340 and the negative electrode 330 are fixed. Accordingly, the negative electrode 330 and the cylindrical member 340 are electrically connected. The spring portion 332 is an example of the contact portion of the present invention.

The third embodiment has the same effect as the first embodiment. Further, in the third embodiment, the negative electrode 330 and the pair of spring portions 332 are integrally formed from a material such as copper, which is a conductive material and a nonmagnetic material. The spring portion 332 is biased in the direction toward the inner surface of the cylindrical member 340, and the negative electrode 330 and the cylindrical member 340 are fixed. Accordingly, even when the vibration generator 1 is attached to a power supply unit of an electronic device with low power consumption, for example, an electronic device such as a remote controller, or even when the vibration generator itself is vibrated, the spring portion Since the negative electrode 330 and the cylindrical member 340 are fixed by urging 332 toward the inner surface of the cylindrical member 340, poor electrical contact between the cylindrical member 340 and the negative electrode 330 can be reduced.

[Fourth embodiment]
A fourth embodiment of the present invention will be described with reference to FIGS.

(Configuration of Fourth Embodiment)
The fourth embodiment is a vibration power generator 400 in which the first cylindrical member and the second electrode portion are integrally formed from the same material that is a conductive material and a magnetic material. In the following description, in the fourth embodiment, the first cylindrical member is described as a cylindrical member 440, and the second electrode portion is described as a negative electrode 430. A description of the same parts as those in the first embodiment is omitted. Further, parts having configurations different from those of the first embodiment are denoted by new reference numerals, and parts having the same configurations as those of the first embodiment are denoted by the same reference numerals. FIG. 17 is an external view of a vibration power generator 400 according to the fourth embodiment of the present invention.

The vibration power generator 400 includes a cylindrical member 440 and includes the plus electrode 20 on the upper end side of the cylindrical member 440. The lower surface of the cylindrical member 440 is a negative electrode 430. The vertical direction in the fourth embodiment is the direction indicated by the arrows in FIG. The same applies to the vertical direction of other drawings. Below, the structure of each part of the vibration generator 400 is demonstrated.

FIG. 18 is a longitudinal sectional view showing the internal configuration of the vibration generator 400 cut along a plane in the vertical direction. As shown in FIG. 18, the vibration power generator 400 includes a bobbin case 50, a coil 60, a mover 70, a rectifying unit 80, and a power storage unit 90 inside a cylindrical member 440.

FIG. 19 is an external perspective view of the cylindrical member 440. In the fourth embodiment, the cylindrical member 440 is formed in substantially the same shape as that of a general dry battery. More specifically, as shown in FIG. 19, the cylindrical member 440 is cylindrical and is formed to extend in the longitudinal direction from one end to the other end, and the lower end is closed. The lower surface of the cylindrical member 440 is a negative electrode 430. The cylindrical member 440 is formed by a deep drawing process or the like from a plate made of a conductive material and a magnetic material such as iron. The outer peripheral surface of the cylindrical member 440 is coated with a coating material made of an insulating material.

FIG. 20 is an external perspective view of the spacer member 431. As shown in FIG. 20, the spacer member 431 is made of an insulating material and made of a nonmagnetic material such as ABS resin in a cylindrical shape. A bobbin case support 432 is formed inside the spacer member 431. The bobbin case support portion 432 is formed of a circular recess and is open upward. The spacer member 431 is disposed inside the cylindrical member 440 with the bobbin case support portion 432 facing upward.

In the fourth embodiment, the plus electrode 20, the bobbin case 50, the coil 60, the mover 70, the rectifying unit 80, and the power storage unit 90 have the same configuration as in the first embodiment, and thus detailed description thereof is omitted.

18, in the state where the coil 60 is provided in the bobbin case 50, the lower end portion 56 of the bobbin case 50 is press-fitted into the bobbin case support portion 432, and the bobbin case 50 is fixed to the spacer member 431.

The cylindrical mover 70 is disposed in the internal space X of the bobbin case 50 whose lower end is sealed by the spacer member 431 in a state in which the magnetization direction and the vertical direction coincide with each other.

18, the mover 70 can move in the vertical direction in the internal space X inside the bobbin case 50 sealed by the spacer member 431 and the bobbin case fixing member 51.

In this state, as shown in FIG. 18, the upper end portion of the cylindrical member 440 and the lower portion of the plus electrode side cap 21 provided with the substrate 12 and the plus electrode 20 are fixed by an adhesive. In a state where the cylindrical member 440 and the plus electrode side cap 21 are fixed, the upper plate portion 43 of the energy storage circuit connecting member 42 is urged upward to come into contact with the minus electrode side terminal 90b.

The fourth embodiment has the same effects as the first embodiment and the second embodiment. Furthermore, in the fourth embodiment, the cylindrical member 440 and the negative electrode 430 are integrally formed from the same material, which is a conductive material and a magnetic material. Therefore, it is necessary to connect the cylindrical member 440 and the negative electrode 430. There is no. Accordingly, even when the vibration generator 4 is attached to a power supply unit of an electronic device with low power consumption, for example, an electronic device such as a remote controller, or is vibrated, or even when the vibration generator itself is vibrated, the cylindrical member Since the 440 and the negative electrode 430 are integrally formed from the same material which is a conductive material and a magnetic material, poor electrical contact between the cylindrical member 440 and the negative electrode 430 can be reduced. Further, since the cylindrical member 440 and the negative electrode 430 can be easily formed from a plate made of a conductive material and a magnetic material, the cylindrical member 440 and the negative electrode 430 can be more easily manufactured than when the negative electrode 430 and the cylindrical member 440 are brought into contact with each other. Cost is low.

In the fourth embodiment, a nonmagnetic spacer member 431 is provided between the negative electrode 430 provided on the bottom surface of the cylindrical member 440 made of a magnetic material and the mover 70. Therefore, the movement of the mover 70 is not hindered by the magnetic attractive force between the mover 70 and the negative electrode 430, and it is possible to suppress a decrease in power generation efficiency.

The present invention is not limited to the above-described embodiment, and can be implemented in various modes without departing from the gist thereof. For example, the following modifications are possible. Note that parts having configurations different from those of the first to fourth embodiments are denoted by new reference numerals, and parts having the same configurations are denoted by the same reference numerals. The description of the same parts as those in the first to fourth embodiments is omitted.

[Modification 1]
This will be described with reference to FIG. In the first to fourth embodiments, the negative electrode side terminal 90 b and the cylindrical member are electrically connected via the storage circuit connecting member 42, but are electrically connected via the bobbin case fixing member 51. Also good. The connection method will be specifically described below. The bobbin case fixing member 51 has the same shape as that of the bobbin case fixing member 51 shown in FIG. 5, but is made of a conductive material and a nonmagnetic material such as copper. FIG. 21 is a longitudinal sectional view showing the internal configuration of the vibration generator 500 of this modification example cut along a plane in the vertical direction. As shown in FIG. 5, the insertion port 55 is provided below the bobbin case fixing member 51. A wiring passage 54 through which the conducting wire 100 is inserted is provided in the bobbin case fixing member 51 along the vertical direction.

The coil spring 542 shown in FIG. 21 is made of a conductive material and a nonmagnetic material such as copper. As shown in FIG. 21, one end of the coil spring 542 is electrically connected to the upper surface of the bobbin case fixing member 51 by soldering. The mover 70 is disposed inside the bobbin case 50. Next, the upper end portion 57 of the bobbin case 50 is press-fitted into the insertion port 55 in a state where the conductive wires 100 extending from the upper and lower ends of the coil 60 are inserted into the wiring passage 54. Therefore, the bobbin case 50 and the bobbin case fixing member 51 are fixed. In the process of fixing the bobbin case 50 and the bobbin case fixing member 51, a conductive adhesive such as silver paste is applied to the outer peripheral surface of the bobbin case fixing member 51. When the bobbin case 50 and the bobbin case fixing member 51 are fixed, the bobbin case fixing member 51 and the cylindrical member 40 are electrically connected by the conductive adhesive. Further, the plus electrode side cap 21 provided with the plus electrode 20 and the substrate 12 is fixed to the housing 10 with an adhesive. At this time, the other end of the coil spring 542 is urged against and contacted by the negative electrode side terminal 90b. Accordingly, the negative electrode side terminal 90 b is electrically connected to the cylindrical member 40 via the coil spring 542.

In the first modification, the negative electrode side terminal 90b and the bobbin case fixing member 51 are electrically connected via the coil spring 542. However, the negative electrode side terminal 90b and the bobbin case fixing member 51 are electrically connected by a conductive wire. May be connected. In this case, one end of the conducting wire is connected to the upper surface of the bobbin case fixing member 51 with solder. The other end of the conducting wire is connected to the negative electrode side terminal 90b by solder. Therefore, the negative electrode side terminal 90b is electrically connected to the cylindrical member 40 through the conducting wire.

[Modification 2]
This will be described with reference to FIG. In the first to fourth embodiments, the following method may be adopted as an electrical connection method between the positive electrode side terminal 90a and the positive electrode 20. The connection method will be specifically described below. FIG. 22 is an enlarged longitudinal sectional view of the vibration generator 600 on the positive electrode side. FIG. 23 is an external perspective view of a plus electrode 620 and a plus electrode side cap 621 that are different in shape from the plus electrode 20 and the plus electrode side cap 21 shown in FIG. As shown in FIG. 23, the plus electrode 620 is formed in a cylindrical shape from a material such as copper which is a conductive material and is a nonmagnetic material. A positive electrode connection portion 622 is formed to protrude from the lower surface of the positive electrode 620. The plus electrode 620 is an example of the first electrode portion of the present invention.

As shown in FIG. 22, one end of the conducting wire is connected to the plus electrode connecting portion 622 with solder. A wiring hole 623 is provided at the center of the cylindrical positive electrode cap 621. With the other end of the conducting wire inserted into the wiring hole 623, the lower surface of the plus electrode 620 and the upper surface of the plus electrode side cap 621 near the wiring hole 623 are fixed with an adhesive. Accordingly, the plus electrode 620 and the plus electrode cap 621 are fixed. A substrate attachment portion 625 is provided inside the plus electrode cap 621. The other end of the conducting wire is connected to the plus electrode side terminal 90a with solder, and the plus electrode side terminal 90a and the plus electrode 620 are electrically connected. Next, the substrate 12 provided with the rectifying unit 80 and the power storage unit 90 is fixed to the lower portion of the substrate attachment unit 625 with an adhesive.

[Modification 3]
This will be described with reference to FIG. In the first or second embodiment, the negative electrode and the cylindrical member may be electrically joined by welding. FIG. 24 is a longitudinal sectional view showing the internal configuration of the vibration generator 700 according to this modified example cut along a plane in the vertical direction. In this case, the cylindrical negative electrode 730 is made of a conductive material and a nonmagnetic material such as copper. The cylindrical cylindrical member 740 is made of a conductive material and a magnetic material such as iron. The lower end of the cylindrical member 740 and the negative electrode 730 are welded and electrically connected. When the negative electrode 730 and the cylindrical member 740 are electrically joined by welding, the welded portion is an example of the contact portion of the present invention.

[Modification 4]
This will be described with reference to FIG. In the first to fourth embodiments, with the electromagnetic induction coil 60 provided in the bobbin case 50, the lower end 56 of the bobbin case 50 is press-fitted into the bobbin case support and fixed to the negative electrode 30. However, the following fixing method may be adopted.

FIG. 25 is an external perspective view of the negative electrode 830. As shown in FIG. 25, the negative electrode 830 is formed in a cylindrical shape. A bobbin case support 834 is formed on the cylindrical portion of the negative electrode 830. The bobbin case support 834 is formed of a circular recess and is open upward. A female screw 832 is provided on the cylindrical inner peripheral surface of the bobbin case support 834. The minus electrode 830 is press-fitted into the lower part of the cylindrical member 40 and fixed to the cylindrical member 40. In a state where the negative electrode 830 is fixed to the cylindrical member 40, the collar 833 contacts the lower end surface of the cylindrical member 40. The negative electrode 830, the female screw 832, the collar 833, and the bobbin case support portion 833 are integrally formed of a conductive material, such as copper, which is a nonmagnetic material.

FIG. 26 is an external perspective view of the bobbin case 850. As shown in FIG. 26, the bobbin case 850 is provided with a male screw 852 that can be screwed into the female screw 832 at the lower end of the bobbin case 50 shown in the first embodiment. The bobbin case 850 is the bobbin case 50 provided with a male screw 852. In the bobbin case 850, the coil 60 and the partition part 52 are the same as those in the first embodiment, and are omitted. The bobbin case 850 provided with the coil 60 is fixed to the negative electrode 830 by the male screw 852 and the female screw 832 being screwed together.

[Modification 5]
Even in the vibration power generator 200 in which the cylindrical member 240 of FIG. 11 serves as a housing, the method described in the third embodiment in which the negative electrode 330 and the cylindrical member 340 are fixed by the biasing force of the spring may be adopted. good.

[Modification 6]
In the first to fourth embodiments, the first electrode portion is a positive electrode and the second electrode portion is a negative electrode. However, the first electrode portion may be a negative electrode and the second electrode portion may be a positive electrode.

[Modification 7]
In the first and second embodiments, the female screw is provided on the cylindrical member 40 and the male screw is provided on the negative electrode 30. However, the present invention is not limited thereto, and a male screw may be provided on the cylindrical member, and a female screw may be provided on the negative electrode.

[Modification 8]
In the first and third embodiments, the case 10 is exemplified by a commercially available dry battery type outer shape, but is not limited to this shape. For example, the casing 10 may have an elliptic cylinder shape or a polygonal cylinder shape. Moreover, although the material which comprises the housing | casing 10 was made into ABS resin in 1st and 3rd embodiment, copper, aluminum, brass, etc. may be sufficient.

[Modification 9]
In the first to fourth embodiments, the cylindrical member 40 is exemplified by a cylindrical outer shape, but is not limited to this shape. For example, the cylindrical member 40 may have an elliptical cylindrical shape or a polygonal cylindrical shape. Moreover, although the material which comprises the cylindrical member 40 was iron, conductive materials and magnetic materials, such as silicon steel, permalloy, sendust, permendur, an amorphous magnetic alloy, and a nanocrystal magnetic alloy, may be sufficient.

[Modification 10]
In the first to fourth embodiments, the mover 70 is formed in a columnar shape or a cylindrical shape. However, the outer periphery of the cross section having the same shape as the cross section perpendicular to the vertical direction of the mover 70 What is necessary is just to form so that it may have the outer periphery of the cross section of the same shape as a cross section perpendicular | vertical to a direction. The mover 70 is preferably formed in a cylindrical shape as described above. This is because the magnetic attraction between the mover 70 and the cylindrical member 40 is made uniform, and the mover 70 moves smoothly in the internal space X of the bobbin case 50.

DESCRIPTION OF SYMBOLS 10 Housing | casing 12 Board | substrate 20 Positive electrode 21 Positive electrode side cap 30,330,430 Negative electrode 32 Male thread 40,240,340,440 Cylindrical member 41 Female thread 42 Power storage circuit connection member 50 Bobbin case 51 Bobbin case fixing member 52 Part 60 coil 61 element coil 70 mover 80 rectifier 80a input side terminal 80b output side terminal
80c Output side terminal 90 Power storage unit 90a Positive electrode side terminal 90b Negative electrode side terminal 142 Coil spring 332 Spring unit 431 Spacer member X Internal space

Claims

A first cylindrical member made of a conductive material and a magnetic material;
A first electrode portion provided on one end side of both ends in the longitudinal direction of the first cylindrical member and electrically insulated from the first cylindrical member;
A second electrode portion provided on the other end side of the first cylindrical member and electrically connected to the first cylindrical member;
A second cylindrical member housed in the first cylindrical member and made of a non-magnetic material;
A mover comprising a permanent magnet movably installed along the longitudinal direction inside the second tubular member;
A coil wound around the outer peripheral surface of the second tubular member;
The coil is disposed between the second cylindrical member and the first electrode part or between the second cylindrical member and the second electrode part, and is generated in the coil by the reciprocating movement of the mover. A rectifier that rectifies the induced current;
An electric charge is generated between the second cylindrical member and the first electrode part or between the second cylindrical member and the second electrode part, and is induced by the induced current rectified by the rectifying part. A power storage unit that stores power and is electrically connected to the first electrode unit and the second electrode unit;
With
One end of the power storage unit and the first electrode unit are electrically connected, and the other end of the power storage unit and the second electrode unit are electrically connected via the first tubular member. A vibration generator characterized by
The vibration generator according to claim 1,
The second electrode part and the first cylindrical member are composed of separate members,
The second electrode portion includes a contact portion that contacts the first tubular member,
The vibration generator, wherein the second electrode portion and the contact portion are integrally formed.
The vibration generator according to claim 2,
The second electrode part having the contact part has an elastic body,
The contact generator is biased in a direction toward the inner surface of the first cylindrical member.
The vibration generator according to claim 2,
A screw fitting portion that is screw-fitted between the contact portion and the inner surface of the first cylindrical member that contacts the contact portion;
The vibration generator, wherein the first tubular member and the second electrode portion are electrically connected by the screw fitting portion.
The vibration generator according to claim 1,
At least one of the first electrode portion and the second electrode portion is made of a conductive material and a nonmagnetic material, and the vibration power generator is characterized in that:
The vibration generator according to claim 1, wherein the first cylindrical member and the second electrode portion are integrally formed from the same material, which is a conductive material and a magnetic material. Generator.
The vibration generator according to claim 6, further comprising a spacer member made of a nonmagnetic material between the second electrode portion and the second cylindrical member.
The vibration generator according to claim 1,
The first cylindrical member also serves as a housing of a vibration generator.
The vibration generator according to claim 1,
The coil is composed of a plurality of element coils,
A vibration power generator comprising a partition portion made of a non-magnetic material that partitions the plurality of element coils in the longitudinal direction.