JP2017028893A - Oscillatory dynamo apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an oscillatory dynamo apparatus that improves power generation efficiency.SOLUTION: An oscillatory dynamo apparatus (1) includes: a nonmagnetic cylindrical member (2); a coil (3) disposed on an outer circumference of the cylindrical member (2); and a vibration member (10) including a magnet, and accommodated inside the cylindrical member (2) so as to be reciprocated along an extension direction of the cylindrical member (2). In the vibration member (10), a portion in contact with the cylindrical member (2) is a spherical body.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a vibration dynamo device.

  Conventionally, as a power generation method for converting vibration energy into electric energy, there are a method using electromagnetic induction, a method using a piezoelectric element, a method using electrostatic induction, and the like. The system using electromagnetic induction is a system in which the relative position between the coil and the magnet is changed by vibration and power is generated by electromagnetic induction generated in the coil. Examples of such a technique include Japanese Patent Application Laid-Open No. 2011-199916 (Patent Document 1) and Japanese Patent Application Laid-Open No. 2013-055717 (Patent Document 2).

  Specifically, Patent Documents 1 and 2 include a tubular member, a coil disposed along the tubular member, and a mover provided in the tubular member so as to be capable of reciprocating in the longitudinal direction. A vibration generator is provided. The mover of Patent Document 1 has a first permanent magnet and a second permanent magnet arranged so that the same polarity as the first permanent magnet faces each other. The first and second permanent magnets are cylindrical. It is. The mover of Patent Document 2 includes a permanent magnet, a non-magnetic weight provided at both ends of the permanent magnet, and a fastening member that fastens the permanent magnet and the non-magnetic weight. The body weight is a columnar shape having substantially the same outer diameter. Patent Documents 1 and 2 disclose that the mover has the same cross-sectional shape as the space inside the cylindrical member.

JP 2011-199916 A JP 2013-055717 A

  However, in the vibration generators of Patent Documents 1 and 2, the present inventors paid attention to the problem that efficiency when converting vibration energy into electric energy is low, and made this a problem.

  That is, an object of the present invention is to provide a vibration dynamo device that improves power generation efficiency.

  The present inventor has the problem that the power generation efficiency is poor in the vibration generators of Patent Documents 1 and 2, and the mover of Patent Documents 1 and 2 has the same cross-sectional shape as the space inside the cylindrical member. Therefore, the present inventors have found that the sliding resistance between the cylindrical member and the mover is large when the mover reciprocates in the cylindrical member. For this reason, in order to improve electric power generation efficiency, this inventor paid attention to reducing the sliding area of a cylindrical member and a needle | mover, and completed this invention.

  That is, the vibration dynamo device of the present invention is a cylindrical member that is capable of reciprocating along a non-magnetic cylindrical member, a coil disposed on the outer periphery of the cylindrical member, and the extending direction of the cylindrical member. The vibration member including the magnet and housed in the inside of the cylindrical member, and the portion of the vibration member that contacts the cylindrical member is a sphere.

  According to the vibration dynamo device of the present invention, when the vibration member reciprocates, the portion of the vibration member that contacts the cylindrical member is a sphere, so that the sliding portion between the vibration member and the cylindrical member is in point contact. For this reason, since the sliding area of a vibration member and a cylindrical member can be reduced, the resistance at the time of a vibration member vibrating can be reduced. Therefore, since the efficiency of converting vibration (kinetic) energy into electric energy can be improved, the vibration dynamo device of the present invention can improve power generation efficiency.

  In the vibration dynamo device of the present invention, preferably, the vibration member includes three or more elements, and the elements positioned at both ends are spheres.

  When the sphere constituting the vibrating member contacts the cylindrical member when the vibrating member reciprocates, the contact area can be reduced. For this reason, the vibration dynamo device which can improve power generation efficiency is realizable.

  In the vibration dynamo device of the present invention, preferably, the remaining portions of the three or more elements are spheres and / or columns, and the outer diameters of the spheres located at both ends are larger than the outer diameters of the remaining spheres and / or columns. Is also big.

  Thereby, since the spherical body located in both ends contacts with a cylindrical member among the elements which comprise a vibration member, the contact area of a vibration member and a cylindrical member at the time of a vibration member reciprocating can be reduced more. For this reason, the power generation efficiency of the vibration dynamo device can be further improved.

  In the vibration dynamo device of the present invention, preferably, the spheres located at both ends are yokes, and the remainder of the three or more elements is a magnet.

  By combining the yoke and the magnet, the magnetic force can be used effectively and the attractive force is improved. For this reason, the power generation efficiency of the vibration dynamo device can be further improved.

  In the vibration dynamo device of the present invention, the vibration member may be composed only of a magnet. Even in this case, when the vibrating member reciprocates, the spherical body of the magnet constituting the vibrating member is in contact with the cylindrical member, so that the contact area between the cylindrical member and the vibrating member can be reduced. For this reason, the power generation efficiency of the vibration dynamo device can be improved.

  According to the vibration dynamo device of the present invention, power generation efficiency can be improved.

It is sectional drawing which shows schematically the vibration dynamo apparatus in Embodiment 1 of this invention. It is a front view which shows roughly the vibration member which comprises the vibration dynamo apparatus in Embodiment 1 of this invention. It is a front view which shows roughly the vibration member which comprises the vibration dynamo apparatus in Embodiment 1 of this invention. It is a front view which shows roughly the vibration member which comprises the vibration dynamo apparatus in Embodiment 1 of this invention. It is a front view which shows roughly the vibration member which comprises the vibration dynamo apparatus in Embodiment 1 of this invention. It is a side view which shows roughly the lighting fixture in Embodiment 2 of this invention. It is sectional drawing which showed the lighting fixture in Embodiment 2 of this invention roughly, and followed the VII-VII line in FIG. It is an equivalent circuit diagram of the lighting fixture in Embodiment 2 of this invention. It is a side view which shows roughly the lighting fixture in Embodiment 3 of this invention. FIG. 10 schematically shows a lighting fixture according to Embodiment 3 of the present invention, and is a cross-sectional view taken along line XX in FIG. 9. It is an equivalent circuit schematic of the lighting fixture in Embodiment 3 of this invention. It is the state which attached the lighting fixture in Embodiment 4 of this invention to the bicycle, Comprising: It is a principal part side view which shows the pedal vicinity roughly. It is the state which attached the lighting fixture in Embodiment 4 of this invention to the bicycle, Comprising: It is a principal part front view which shows roughly a pedal vicinity.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the following drawings, the same or corresponding parts are denoted by the same reference numerals, and description thereof will not be repeated.

(Embodiment 1)
A vibration dynamo apparatus according to an embodiment of the present invention will be described. The vibration dynamo device 1 according to the present embodiment includes a tubular member 2, a coil 3 disposed on the outer periphery of the tubular member 2, a vibration member 10 accommodated in the tubular member 2, and a tubular member. 2 is provided with a closing member 4 disposed at both ends of the coil 2 and a casing 5 surrounding the coil 3.

  The cylindrical member 2 has a hollow rod shape inside and is open at both ends. The cylindrical member 2 of the present embodiment extends in the left-right direction (the direction of arrow A in FIG. 1) in FIG. In addition, the outer shape and inner shape (hollow shape) of the cylindrical member 2 are not specifically limited, A circular shape, a rectangular shape, etc. are mentioned in cross-sectional view. The cylindrical member 2 of the present embodiment has an outer shape and an inner shape that are cylindrical in a sectional view. In addition, the internal diameter (hollow shape diameter) of the cylindrical member of this Embodiment is a little larger than the vibration member 10 mentioned later.

  The cylindrical member 2 is formed of a nonmagnetic material. The non-magnetic material is a material that is not a ferromagnetic material, and includes a paramagnetic material, a diamagnetic material, and an antiferromagnetic material. Examples of the non-magnetic material include metals such as aluminum and synthetic resins such as plastic.

  A coil 3 is wound around the outer periphery of the cylindrical member 2. For this reason, the cylindrical member 2 also serves as a bobbin for the coil 3. Although the coil 3 of this Embodiment is provided in a part of outer periphery of the cylindrical member 2, you may be provided in the perimeter of the cylindrical member 2, and the area | region which the outer periphery of the cylindrical member 2 isolate | separated May be provided. The coil 3 is a solenoid coil, for example.

  A vibration member 10 is provided inside the tubular member 2 in a state where reciprocation is possible along the extending direction of the tubular member 2 (the direction of arrow A in FIG. 1). Since the coil 3 is disposed on the outer periphery of the cylindrical member 2, the vibrating member 10 reciprocates inside the coil 3. The vibrating member 10 includes a magnet, and the coil 3 generates a voltage by the reciprocating motion of the vibrating member 10. That is, since the vibrating member 10 reciprocates along the winding axis direction of the coil 3, an alternating current is generated in the coil 3. The vibration member 10 will be described later.

  Closing members 4 are provided at both ends of the cylindrical member 2. The closing member 4 closes the openings at both ends of the cylindrical member 2. The vibration member 10 that reciprocates is accommodated in the cylindrical member 2 by the closing member 4. The closing member 4 is made of a non-magnetic material, and is preferably made of an elastic material such as resin or rubber from the viewpoint of reducing damage to the vibration member 10 due to reciprocating motion.

  A housing 5 is provided to accommodate the vibration member 10, the cylindrical member 2, the coil 3, and the closing member 4. The housing 5 is made of a nonmagnetic material.

  The vibration dynamo device 1 may further include a rectifying unit, a charging unit, and the like connected to the coil 3 (not shown).

  Here, the vibration member 10 will be described in detail with reference to FIGS. A portion of the vibrating member 10 that contacts the cylindrical member 2 is a sphere.

  As shown in FIGS. 1-5, the vibration member 10 includes three or more elements 11a, 11b, 12a, 12b, 13a, 13b, 14a, 14b, 15a, and the three or more elements are reciprocating. It arrange | positions in parallel along the direction (direction of the arrow A in FIG. 1) to do. Of the three or more elements, the elements 11a, 11b, 12a, 12b located at both ends are spheres. The remaining parts of the three or more elements, that is, the elements 13a, 13b, 14a, 14b, and 15a other than both ends (center part) are pillars in the structure shown in FIGS. 1 to 3 (elements 13a, 14a, and 15a). Yes, the structure (elements 13b and 14b) shown in FIGS. 4 and 5 is a sphere. Note that the sphere and the column include those whose outer shape means a sphere and a column, and whose inside is a cavity. Further, the column includes a cylinder, a prism, a disk shape, and the like, and is a cylinder in the present embodiment.

  As shown in FIGS. 1 to 5, the outer diameters of the spheres located at both ends are larger than the outer diameters of the remaining spheres and / or pillars. In this case, the spheres located at both ends serve as portions in contact with the cylindrical member 2 in the vibration member 10. In the vibrating member 10, the outer diameters of the two spheres positioned at both ends are substantially the same. Substantially the same means that each of the two spheres at both ends contacts the cylindrical member when the vibrating member 10 reciprocates.

  The outer diameter of the sphere is a diameter. The outer diameter of the column is the diameter of the circle on the bottom surface in the case of a cylinder, and the diameter of the circumscribed circle on the bottom surface when the bottom surface of the column is an n-gon (n is an integer of 3 or more).

  In the structure shown in FIGS. 1, 3 and 5, the spheres located at both ends (elements 11a and 12a in FIGS. 1, 3 and 5) are yokes, and the remainder of three or more elements (elements in FIG. 1). 13a, 14a, 15a, elements 13a, 13b, 14a, 14b) in FIGS. 3 and 5 are magnets. In the structure shown in FIGS. 2 and 4, the elements constituting the vibration member 10 (the elements 11b, 12b, 13a, and 14a in FIG. 2, and the elements 11b, 12b, 13b, and 14b in FIG. 4) are made only of magnets. When the elements constituting the vibration member 10 are composed of magnets or are composed of magnets and yokes as described above, the three or more elements of the present embodiment are held by magnetic attraction. These are formed only by magnets or only by magnets and yokes, and hold each other only by magnetic attraction.

  In addition, a magnet (magnet) is a permanent magnet. The magnet is magnetized in the reciprocating direction (axial direction). The magnetization (magnetization) method is not particularly limited. For example, there is a method in which a magnet material is fixed at the center of the air-core coil, a pulse high current is passed, and magnetization is performed in the axial direction. The material of the magnet is not particularly limited, but it is preferable to use a Nd—Fe—B sintered magnet from the viewpoint of showing a high magnetic force.

  Further, the yoke is a soft iron that amplifies the attractive force of the magnet, and may contain iron and includes a soft magnetic material. In the present embodiment, a steel ball is used as the spherical yoke.

  The vibrating member 10 illustrated in FIGS. 1 to 5 is an example, and is not particularly limited as long as the portion in contact with the cylindrical member 2 is a sphere. For example, the vibrating member 10 includes two elements, and the two elements may be magnet spheres.

  The vibrating member 10 is not particularly limited as long as the vibrating member 10 has a size that can freely reciprocate within the cylindrical member 2, but the cylindrical member 2 and the vibrating member 10 of the vibrating dynamo device 1 including the vibrating member 10 illustrated in FIG. 5. An example of the specific dimensions is given. The inner diameter of the cylindrical member 2 is 10.5 mm, for example. The outer diameter of the spheres (elements 11a and 12a) located at both ends of the vibration member 10 is 10.0 mm, for example. The remaining spherical body (elements 13b and 14b) located at the center of the vibration member 10 has an outer diameter of 9.5 mm.

  Next, the operation of the vibration dynamo device 1 of the present embodiment will be described mainly with reference to FIG.

  First, the casing 5 of the vibration dynamo device 1 is held and reciprocates along the extending direction of the cylindrical member 2, that is, the arrow A in FIG. Thereby, the vibration member 10 reciprocates along the extending direction of the cylindrical member 2 inside the cylindrical member 2. As a result, the vibration member 10 reciprocates in the coil 3 disposed on the outer periphery of the cylindrical member 2, so that the magnetic flux lines generated from the magnet of the vibration member 10 are orthogonal to the coil 3, and induction is performed at that time. An induced current is generated as an electromotive force. Since the magnet included in the vibrating member 10 repeatedly enters and exits the coil 3, an alternating current is generated in the coil 3.

  The alternating current generated in the coil 3 is transmitted to a rectification unit (not shown) via wiring (not shown) connected to both ends of the coil. Full-wave rectification is performed by the rectification unit to rectify an alternating current into a DC power source, and the battery is charged by a charging unit (not shown). The charged current is output to the outside through an electrode (not shown). The current output to the outside is supplied to the load of the external device and is driven by the supplied current.

  In the present embodiment, when the vibration member 10 reciprocates within the cylindrical member 2, the spheres positioned at both ends, which are elements of the vibration member 10, are in contact with the cylindrical member 2. The vibration member 10 slides in a state of point contact. Thereby, since the sliding area of the vibration member 10 and the cylindrical member can be reduced, the contact resistance (sliding resistance) is reduced. Since the vibration member 10 is easy to move, the kinetic energy (vibration energy) of the vibration member 10 due to the force applied to the vibration dynamo device 1 can be efficiently converted into electric energy by the coil 3. Therefore, since the power generation efficiency of the vibration dynamo device 1 can be improved, the amount of electricity generated can be increased.

  In the present embodiment, as shown in FIG. 5, the vibration member 10 includes three or more elements 11a, 12a, 13b, and 14b. Each of the three or more elements is a sphere, and spheres positioned at both ends. It is preferable that the outer diameter of the (elements 11a and 12a) is larger than the outer diameter of the remaining spheres (elements 13b and 14b), the spheres located at both ends are yokes, and the remaining spheres are magnets. As a result, the contact resistance between the vibrating member 10 and the cylindrical member 2 during the reciprocating motion of the vibrating member 10 can be reduced, and the generated magnetic force can be reduced by having the yoke effect of the central magnet and the yokes located at both ends. Since it can raise, power generation efficiency can be improved more. Further, since the vibration member 10 is made of a sphere, the cost can be reduced.

(Embodiment 2)
With reference to FIGS. 6-8, the lighting fixture of Embodiment 2 of this invention is demonstrated. The lighting fixture 20 of this Embodiment is a lighting fixture provided with the vibration dynamo apparatus 1 of embodiment shown in FIG.

  As shown in FIGS. 6 and 7, the lighting fixture 20 of the present embodiment is, for example, a walking lighting fixture, and includes the vibration dynamo device 1 of the first embodiment, a light source 21, and a handle 22. Yes. The light source 21 and the handle 22 are attached to the housing 5 of the vibration dynamo device 1. The vibration dynamo device 1 further includes a circuit for operating the light source 21. The circuits are the above-described rectifying unit and charging unit, and are illustrated as a rectifying circuit 8 and a charging circuit 9 in FIG.

  Specifically, the lighting fixture 20 includes a cylindrical member 2, a coil 3, a closing member 4, a housing 5, a protruding member 6, a covering member 7, a rectifier circuit 8, a charging circuit 9, A light source 21, a handle 22, and a switch 23 are provided. Since cylindrical member 2, coil 3, closing member 4, and housing 5 constituting vibration dynamo device 1 are the same as those in the first embodiment, the description thereof will not be repeated. In addition, the cylindrical member 2 shown in FIG. 7 has a smaller difference in length in the extending direction from the casing 5 than the cylindrical member 2 of the first embodiment shown in FIG.

  The protruding member 6 is provided so as to protrude from the outer peripheral surface of the cylindrical member 2 toward the outer periphery. The protruding member 6 covers both end portions in the extending direction of the coil 3. That is, the entire coil 3 is covered with the cylindrical member 2, the protruding member 6, and the housing 5. The protruding member 6 may be integrally formed with the tubular member 2 or may be connected to another member.

  The covering member 7 covers the released end portions of the cylindrical member 2 and the closing member 4. The protruding member 6 and the covering member 7 are made of a nonmagnetic material.

  A rectifier circuit 8 is provided at one end of the coil 3, and a charging circuit 9 is provided at the other end of the coil 3. The rectifier circuit 8 rectifies the alternating current generated in the coil 3. The charging circuit 9 charges the direct current converted by the rectifying circuit 8.

  A light source 21 is attached to the housing 5 of the vibration dynamo device 1. In the present embodiment, the light source 21 is attached to one end and the other end of the coil 3, and the vibration dynamo device 1 includes two light sources 21. The light source 21 is not particularly limited as long as it emits light when a current is applied, and an LED, an incandescent bulb, a discharge lamp, or the like can be used. In the present embodiment, the light source 21 is housed inside the housing 5, but is not particularly limited to this arrangement, and may be provided outside the housing 5.

  A handle 22 is attached to the housing 5 of the vibration dynamo device 1. In the present embodiment, a support portion 24 connected to each of both ends in the extending direction of the housing 5, a connection portion 25 connecting the two support portions 24, and an outer periphery of the connection portion 25 are provided. And a gripping portion 26.

  As shown in FIGS. 6 and 7, the support portion 24 extends outward (upward in FIGS. 6 and 7) from both ends of the housing 5. Each of the support portions 24 is formed with a through hole 24a at the upper end portion. The through hole 24a is, for example, a size through which a string is inserted. When the string is inserted into the through hole 24a, the lighting fixture 20 can be hung on the shoulder.

  A connecting portion 25 is provided so as to connect the support portion 24. The connecting portion 25 extends along the extending direction of the tubular member 2. A cylindrical gripping portion 26 is provided on the outer periphery of the connecting portion 25. The grip part 26 is an area that is gripped during walking. For this reason, the grip part 26 is formed of a material having a good cushioning property. A storage battery (not shown) is built in the connecting portion 25, the holding portion 26, or between the connecting portion 25 and the holding portion 26.

  The handle 22 may be integrally formed with the housing 5 or may be connected with another member. In the present embodiment, the support portion 24 and the connecting portion 25 are formed integrally with the housing 5, and the gripping portion 26 is prepared as a separate member and attached to the connecting portion 25. For this reason, the support part 24 and the connection part 25 are formed of the same material as the housing 5, and the gripping part 26 is formed of a material different from that of the housing 5. The handle 22 is not particularly limited to the above structure, and may be a member in which the connecting portion 25 and the gripping portion 26 are integrally formed.

  The switch 23 is attached to the housing 5 and switches the light source 21 on and off.

  Then, with reference to FIGS. 6-8, operation | movement of the lighting fixture 20 of this Embodiment is demonstrated.

  First, the handle 22 of the luminaire 20 is gripped and reciprocated along the extending direction of the cylindrical member 2, that is, along the arrow A in FIG. Thus, as in the first embodiment, the vibrating member 10 reciprocates along the extending direction of the cylindrical member 2 inside the cylindrical member 2, so that the magnetic flux lines generated from the magnet of the vibrating member 10 Is orthogonal to the coil 3, an alternating current is generated in the coil 3. The alternating current generated in the coil 3 is transmitted to the rectifier circuit 8 to be rectified and charged by the charging circuit 9.

  When light is emitted from the light source 21, the switch 23 is turned on. As a result, the current charged in the charging circuit 9 is transmitted to the light source 21 to emit light. When the current charged in the charging circuit is small, a current is passed from the storage battery built in the handle 22 to the light source 21.

  When light is not emitted from the light source 21, the switch 23 is turned off. In this state, when the vibration member 10 is reciprocated, the current generated in the coil 3 can be charged to the charging circuit 9 via the rectifier circuit 8.

  As described above, the lighting fixture 20 of the present embodiment includes the vibration dynamo device 1 of the first embodiment and the circuit incorporated in the housing 5 (the rectifier circuit 8 and the charging circuit 9 in the present embodiment). And a light source 21 and a handle 22 attached to the housing 5.

  Thereby, when the vibration member 10 reciprocates in the cylindrical member 2, the spheres located at both ends of the vibration member 10 come into contact with the cylindrical member 2, so that the vibration member 10 and the cylindrical member 2 are in point contact. Become. Since the kinetic energy generated in the vibration member 10 can reduce the contact resistance, the conversion from the kinetic energy of the vibration member 10 to electrical energy by the coil 3 can be improved. Therefore, the lighting fixture 20 provided with the vibration dynamo device 1 with improved power generation efficiency can improve power generation efficiency.

(Embodiment 3)
With reference to FIGS. 9-11, the lighting fixture of Embodiment 3 of this invention is demonstrated. The lighting fixture 30 of this Embodiment is a lighting fixture provided with the vibration dynamo apparatus 1 of embodiment shown in FIG.

  As shown in FIGS. 9 and 10, the lighting fixture 30 of the present embodiment is, for example, a walking lighting fixture, and includes the vibration dynamo device 1 of the first embodiment, the light source 21, the protection member 31, and the support. Member 32. The light source 21, the protection member 31, and the support member 32 are attached to the housing 5 of the vibration dynamo device 1. The vibration dynamo device 1 further includes a circuit (the rectifier circuit 8 and the charging circuit 9 in FIG. 10) for operating the light source 21.

  Specifically, the lighting fixture 30 includes a cylindrical member 2, a coil 3, a closing member 4, a housing 5, a protruding member 6, a covering member 7, a rectifier circuit 8, a charging circuit 9, A light source 21, a protection member 31, and a support member 32 are provided. Since the cylindrical member 2, the coil 3, the closing member 4, and the housing 5 constituting the vibration dynamo device 1 are the same as those in the first embodiment, and the light source 21 is the same as that in the second embodiment, the description thereof will not be repeated. .

  Specifically, in the vibration dynamo device 1, a rectifier circuit 8 is provided at one end of the covering member 7, and a charging circuit 9 is provided at the other end of the covering member 7. In the present embodiment, a rectifier circuit 8 and a charging circuit 9 are provided at a distance from the coil 3. For the charging circuit 9, for example, an electric double layer capacitor is used.

  A protection member 31 is provided so as to cover the entire outer periphery extending in the extending direction of the housing 5 of the vibration dynamo device 1. The protection member 31 is a member that protects the vibration dynamo device 1 and is made of, for example, an elastic material.

  Support members 32 are attached to both ends of the housing 5 and the protection member 31. The support member 32 protrudes in one direction (upward in FIG. 10) from the center of one end surface and the other end surface of the housing 5 toward the outside. A through hole 32 a is formed at the end of the support member 32 opposite to the housing 5 and the protection member 31. The through hole 32a is, for example, a size through which a string is inserted. When the string is inserted through the through hole 32a, the lighting device 30 can be hung on the shoulder.

  Note that the lighting fixture 30 may further include a switch (not shown) that switches the light source 21 on and off.

  Then, with reference to FIGS. 9-11, operation | movement of the lighting fixture 30 of this Embodiment is demonstrated.

  First, the protection member 31 of the lighting fixture 30 is gripped and reciprocated along the extending direction of the cylindrical member 2, that is, along the arrow A in FIG. Thus, as in the first embodiment, the vibrating member 10 reciprocates along the extending direction of the cylindrical member 2 inside the cylindrical member 2, so that the magnetic flux lines generated from the magnet of the vibrating member 10 Is orthogonal to the coil 3, an alternating current is generated in the coil 3. The alternating current generated in the coil 3 is transmitted to the rectifier circuit 8 to be rectified, charged by the charging circuit 9, and further transmitted to the light source 21 to emit light.

  As described above, the lighting fixture 30 of the present embodiment includes the vibration dynamo device 1 of the first embodiment and the circuit incorporated in the housing 5 (the rectifier circuit 8 and the charging circuit 9 in the present embodiment). And a light source 21 attached to the housing 5.

  When the vibration member 10 reciprocates within the cylindrical member 2, the spheres located at both ends of the vibration member 10 come into contact with the cylindrical member 2, so that the vibration member 10 and the cylindrical member 2 are in point contact. Since the kinetic energy generated in the vibration member 10 can reduce the contact resistance, the conversion from the kinetic energy of the vibration member 10 to electrical energy by the coil 3 can be improved. Therefore, the lighting fixture 30 provided with the vibration dynamo device 1 with improved power generation efficiency can improve power generation efficiency.

  Here, the lighting fixture 20 of the second embodiment and the lighting fixture 30 of the third embodiment may further include a weight attached to the housing 5. In this case, the lighting fixtures 20 and 30 that further play the role of a barbell can be realized.

(Embodiment 4)
With reference to FIG.12 and FIG.13, although the lighting fixture 40 of this Embodiment is the same as that of Embodiment 3, the light source 21 is attached only to the one end part of the housing | casing 5. FIG. This is different from the third embodiment in that the support member 32 is omitted.

  The lighting fixture 40 of this Embodiment is attached to the inner surface of the crank 52 connected with the pedal 51 of the bicycle as shown in FIG.12 and FIG.13. That is, the lighting fixture 40 is a bicycle lighting fixture.

  Since the crank 52 is rotated by the kinetic energy applied to the pedal 51 during traveling of the bicycle, the vibrating member 10 reciprocates along the extending direction of the tubular member 2 of the lighting fixture 40. Thus, as in the third embodiment, the magnetic flux lines generated from the magnet of the vibrating member 10 are orthogonal to the coil 3, whereby an alternating current is generated in the coil 3. The alternating current generated in the coil 3 is transmitted to the rectifier circuit 8 to be rectified, charged by the charging circuit 9, and further transmitted to the light source 21 to emit light. When the bicycle is not running, the pedal is not rotated, so that no current flows through the light source 21, and therefore no light is emitted.

  As described above, the luminaire 40 including the vibration dynamo device 1 according to the first embodiment, the circuit (rectifier circuit and charging circuit) incorporated in the housing 5, and the light source 21 attached to the housing 5. Can also be used as a lighting fixture attached to a bicycle. Since the lighting fixture 40 of this Embodiment can improve electric power generation efficiency, it can improve efficiency and can light-emit by the kinetic energy at the time of driving | running | working of a bicycle.

  The embodiment disclosed this time should be considered as illustrative in all points and not restrictive. The scope of the present invention is shown not by the above-described embodiment but by the scope of claims, and is intended to include all modifications within the meaning and scope equivalent to the scope of claims.

  DESCRIPTION OF SYMBOLS 1 Vibration dynamo apparatus, 2 Cylindrical member, 3 Coil, 4 Closing member, 5 Case, 6 Protruding member, 7 Cover member, 8 Rectifier circuit, 9 Charging circuit, 10 Vibration member, 11a, 11b, 12a, 12b, 13a , 13b, 14a, 14b, 15a element, 20, 30, 40 luminaire, 21 light source, 22 handle, 23 switch, 24 support, 24a, 32a through hole, 25 connecting part, 26 gripping part, 31 protective member, 32 Support member, 51 pedal, 52 crank, A arrow.

Claims (5)

A non-magnetic cylindrical member;
A coil disposed on the outer periphery of the tubular member;
A reciprocating motion along the extending direction of the tubular member, and housed inside the tubular member in a state capable of reciprocating, and a vibrating member including a magnet,
The vibration dynamo device in which the part in contact with the cylindrical member in the vibration member is a sphere. The vibrating member includes three or more elements,
The vibration dynamo device according to claim 1, wherein the elements located at both ends are spheres. The balance of the three or more elements is a sphere and / or a pillar,
3. The vibration dynamo device according to claim 2, wherein outer diameters of the spheres positioned at both ends are larger than outer diameters of the remaining spheres and / or pillars. The spheres located at both ends are yokes,
The vibration dynamo device according to claim 2 or 3, wherein a balance of the three or more elements is a magnet.   The vibration dynamo device according to claim 1, wherein the vibration member includes only a magnet.

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