WO2017208602A1 - Vibration powered generator device - Google Patents

Vibration powered generator device Download PDF

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Publication number
WO2017208602A1
WO2017208602A1 PCT/JP2017/012799 JP2017012799W WO2017208602A1 WO 2017208602 A1 WO2017208602 A1 WO 2017208602A1 JP 2017012799 W JP2017012799 W JP 2017012799W WO 2017208602 A1 WO2017208602 A1 WO 2017208602A1
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WO
WIPO (PCT)
Prior art keywords
coil
pair
side unit
vibration power
power generator
Prior art date
Application number
PCT/JP2017/012799
Other languages
French (fr)
Japanese (ja)
Inventor
良明 深井
Original Assignee
スター精密株式会社
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Filing date
Publication date
Application filed by スター精密株式会社 filed Critical スター精密株式会社
Publication of WO2017208602A1 publication Critical patent/WO2017208602A1/en

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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/18—Structural association of electric generators with mechanical driving motors, e.g. with turbines
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K35/00—Generators with reciprocating, oscillating or vibrating coil system, magnet, armature or other part of the magnetic circuit
    • H02K35/04—Generators with reciprocating, oscillating or vibrating coil system, magnet, armature or other part of the magnetic circuit with moving coil systems and stationary magnets

Definitions

  • the present invention relates to a vibration power generator configured to generate an induced electromotive force using vibration.
  • Patent Document 1 a movable unit including a conductive coil vibrates in a required direction with respect to a fixed unit including a magnet and a yoke so that an induced electromotive force is generated in the conductive coil.
  • a configured vibration power generator is described.
  • Patent Document 2 a movable side unit including a magnet and a yoke vibrates in a required direction with respect to a fixed side unit including a conductive coil, thereby generating an induced electromotive force in the conductive coil.
  • a configured vibration power generator is described.
  • the vibration power generator described in “Patent Document 2” has a configuration in which the stationary unit includes a case for accommodating the movable unit.
  • Patent Document 2 it is preferable to include a case for accommodating the movable side unit as the fixed side unit.
  • Patent Document 1 when the vibration power generation apparatus described in this “Patent Document 1” is also used as a portable vibration power generation apparatus, the movable side unit and the fixed side unit are accommodated in the case. It is difficult to reduce the thickness.
  • the present invention has been made in view of such circumstances, and in a vibration power generator configured to generate induced electromotive force using vibration, the movable side unit is housed in a case. Even if it is a case, it aims at providing the vibration electric power generating apparatus which can achieve the thickness reduction.
  • the present invention is intended to achieve the above-mentioned object by devising the configuration of the case.
  • the vibration power generator configured to generate an induced electromotive force in the conductive coil by causing the movable side unit including the conductive coil to vibrate in a required direction with respect to the fixed side unit including the magnet and the yoke
  • the movable side unit includes a plate-shaped coil holder arranged to extend in the required direction
  • the conductive coil is housed in a coil housing portion formed in the coil holder
  • the fixed side unit includes a case for accommodating the movable side unit,
  • the case includes a pair of wall surfaces formed to extend in the required direction on both sides of the coil holder in the plate thickness direction, Recessed depressions are formed in each of the wall surfaces, At least one opening penetrating through the depressed recess is formed in the depressed recess in at least one of the pair of wall surfaces,
  • the yoke is supported by the depressed recesses,
  • the magnet is housed in each of the openings while being magnetically attracted to the yoke.
  • the specific configuration of the “coil holder” is not particularly limited as long as it is configured as a plate-like member arranged so as to extend in the required direction.
  • the “case” includes a pair of wall surfaces formed so as to extend in the required direction on both sides in the plate thickness direction of the coil holder, the specific configuration of the other portions is particularly limited. It is not a thing.
  • the specific depth, formation range, etc. of the “recessed recess” are not particularly limited.
  • the specific size and shape of the “opening” are not particularly limited.
  • the “magnet” magnetically attracted to at least one of the pair of yokes may be single or plural.
  • the vibration power generation apparatus is configured such that a movable side unit including a conductive coil vibrates in a required direction with respect to a fixed side unit including a magnet and a yoke, and the movable side unit is used as the fixed side unit. Therefore, the vibration power generator can be made thin to some extent.
  • the case includes a pair of wall surfaces formed so as to extend in the required direction on both sides in the plate thickness direction of the coil holder.
  • at least one opening that penetrates the recessed portion is formed in the recessed portion of at least one of the wall portions, and the yoke is supported by each recessed portion, and the magnet is a yoke. Since it is accommodated in each opening in a state of being magnetically attracted to each other, the following effects can be obtained.
  • the vibration power generation apparatus can be made thin.
  • the vibration power generator configured to generate the induced electromotive force using the vibration, even if the movable side unit is configured to be accommodated in the case, its thin shape Can be achieved. As a result, the vibration power generator can be made portable.
  • each wall surface portion is formed to have a depth in which the outer surface of the yoke supported by the recessed portion is substantially flush with the outer surface of the wall surface portion, a pair of yokes
  • the vibration power generator can be thinned to a thickness substantially equal to the thickness of the magnetic circuit portion formed by the magnet and the magnet.
  • a pair of slits extending in the required direction with the coil holder penetrating in the plate thickness direction are formed in portions located on both sides of the coil housing portion in the coil holder. If at least one of the pair of yokes is configured such that a part of the yoke is inserted into the slit, the following effects can be obtained.
  • the vibration power generator is provided. It is possible to easily adjust the resonance frequency while maintaining a thin shape. Moreover, since each weight is disposed at a position away from the magnetic circuit formed by the pair of yokes and magnets, the amount of power generation is reduced by the electromagnetic brake action when the movable unit vibrates. Can be prevented beforehand.
  • each weight is made of metal and arranged with its side end surface protruding into each slit, the fixed side will be fixed when the movable unit vibrates. Even if it comes into contact with the unit, the contact is made between the metal of the weight and the yoke, so that the frictional resistance can be kept small, thereby increasing the power generation efficiency of the vibration power generator.
  • a pair of films that closes the coil housing portion from both sides in the plate thickness direction are formed as a through hole that penetrates the coil holder in the plate thickness direction. If it is set as the structure affixed on the holder, a conductive coil can be hold
  • each of the pair of metal springs After adopting a configuration in which the movable side unit is supported by the fixed side unit via a pair of metal springs that can be elastically deformed in the required direction, each of the pair of metal springs, If each of the pair of coil terminals extending from the conductive coil is electrically connected, it is possible to prevent the coil terminals from bending due to the vibration of the movable unit and generating continuous bending stress. can do. As a result, it is possible to prevent the conductive coil from being inadvertently disconnected, so that the reliability of the vibration power generator can be improved.
  • the first spring extending in a direction substantially orthogonal to the required direction is attached to the coil holder, and the second spring extending substantially parallel to the first board is attached to the case.
  • a coil spring having one end locked to the first substrate and the other end locked to the second substrate, and the electrical connection of each coil terminal to each metal spring is via the first substrate.
  • each coil terminal since the routing shape of each coil terminal can be simplified, electrical connection between each coil terminal and each metal spring can be easily performed. Moreover, since the electrical connection with the external terminal can be performed at an arbitrary position on the second substrate, the electrical connection between each metal spring and the external terminal can be easily performed.
  • the perspective view which shows the vibration electric power generating apparatus which concerns on one Embodiment of this invention A diagram showing the horizontal cross-sectional shape of the vibration power generator at the position of line II-II in FIG. Detailed view of section III in Fig. 2 Front view showing the vibration power generator with the front half of the case removed
  • FIG. 3 which shows the modification of the said embodiment.
  • FIG. 1 is a perspective view showing a vibration power generation apparatus 10 according to an embodiment of the present invention.
  • the vibration power generation device 10 is configured as a card-type vibration power generation device having a horizontally long rectangular front shape.
  • the vibration power generation apparatus 10 generates vibration power by being carried in a state of being accommodated in, for example, a card holder suspended from a person's neck, and uses the induced electromotive force generated by the vibration power generation.
  • the movable side unit 20 including the conductive coil 22 is interposed via a pair of metal springs 60 that can be elastically deformed in the vertical direction with respect to the fixed side unit 40 including the magnet 42 and the yoke 44.
  • the structure is supported.
  • the movable side unit 20 vibrates in the vertical direction with respect to the fixed side unit 40, thereby generating an induced electromotive force in the conductive coil 22.
  • the fixed unit 40 includes a resin case 50 that houses the movable unit 20.
  • the case 50 is configured by assembling front and rear halves 50A and 50B of the same size having a horizontally long rectangular front shape so that the movable unit 20 and a pair of metal springs 60 are sandwiched from both front and rear sides. ing.
  • FIG. 2 is a diagram showing the horizontal cross-sectional shape of the vibration power generator 10 at the position of the line II-II in FIG. 1, and FIG. FIG. 4 is a front view showing the vibration power generator 10 with the front half 50A removed. Furthermore, FIG. 5 is a perspective view showing the vibration power generation apparatus 10 in an exploded manner.
  • FIG. 6 is a perspective view showing a portion related to the movable side unit 20 and the pair of metal springs 60 in FIG.
  • the movable side unit 20 includes a plate-like coil holder 30 arranged so as to extend in the vertical direction.
  • the center portion of the coil holder 30 is formed with a horizontally long oval coil housing portion 30a, and the conductive coil 22 is housed in the coil housing portion 30a.
  • the coil housing portion 30a is formed as a through hole that penetrates the coil holder 30 in the front-rear direction.
  • a pair of films 32 are attached to the coil holder 30 to close the coil housing portion 30a from the front and rear sides.
  • Each film 32 is affixed on each of the front and rear sides of the coil holder 30 so as to cover the range up to the vicinity of the upper and lower end faces of the coil holder 30 with a width that is slightly wider than the left and right width of the coil housing portion 30a.
  • the conductive coil 22 is accommodated in the coil accommodating part 30a in the state affixed on the film 32 located in the back side.
  • the coil holder 30 is made of a general-purpose resin such as ABS resin, but each film 32 is made of a film having a small coefficient of friction such as an ultrahigh molecular weight polyethylene film.
  • a pair of slits 30b extending in the vertical direction are formed in portions of the coil holder 30 that are positioned on both the left and right sides of the coil housing portion 30a in a state of passing through the coil holder 30 in the front-rear direction.
  • Each slit 30b is formed to extend to the vicinity of both upper and lower end faces of the coil holder 30.
  • the portions located on the left and right sides of the pair of slits 30b on the front surface of the coil holder 30 are formed as thin portions 30e whose front surfaces are displaced rearward, and the pair of left and right thin portions 30e are arranged in the vertical direction.
  • a pair of plate-like weights 34 are attached to each other.
  • Each weight 34 is configured as a non-magnetic metal plate (for example, a brass plate) and has a vertically long rectangular front shape. Each weight 34 is arranged with its side end surfaces 34a facing each other slightly projecting into each slit 30b.
  • a frame member 36 made of resin (for example, made of ABS resin) formed in a plate shape is attached to the front surface of the coil holder 30, and supports a pair of left and right weights 34 in a positioned state. ing.
  • positioning pins 30 c that protrude forward are formed at the four corners of the front surface of the coil holder 30.
  • insertion holes 34b through which the positioning pins 30c are inserted are formed at both upper and lower ends of each weight 34.
  • press-fitting holes 36 a for press-fitting each positioning pin 30 c are formed at the four corners of the frame member 36.
  • the frame member 36 has the same outer shape as the coil holder 30 in a front view.
  • the frame member 36 has an opening shape having the same size as a rectangular shape formed by the outer edges of the pair of left and right slits 30b formed in the coil holder 30 and the upper and lower end edges of both slits 30b. .
  • FIG. 7 is a perspective view showing the fixed side unit 40 in FIG.
  • the front and rear halves 50A and 50B constituting the case 50 include wall surface portions 50Aa and 50Ba extending in the vertical direction in the vertical plane along the left-right direction, and the case inner side at the outer peripheral edge portion thereof.
  • Each of the wall surface portions 50Aa and 50Ba is formed in a flat plate shape, and recessed portions 50Ac and 50Bc that are stepped down on the inner side of the case are formed at the substantially central portion thereof.
  • Each depressed recess 50Ac, 50Bc has a horizontally long front shape, and is thinner than the general portion of each wall surface 50Aa, 50Ba.
  • a pair of upper and lower openings 50Ad and 50Bd penetrating through the recessed recesses 50Ac and 50Bc in the front-rear direction are formed in the recessed recesses 50Ac and 50Bc.
  • Each opening 50Ad, 50Bd has a horizontally long rectangular opening.
  • a pair of left and right slits 50Ae and 50Be penetrating the wall surface portions 50Aa and 50Ba in the front-rear direction are formed on both left and right sides of the recessed portions 50Ac and 50Bc in the wall surface portions 50Aa and 50Ba.
  • Each slit 50Ae, 50Be has a vertically long rectangular opening shape extending in the vertical direction along the side edge of each recessed recess 50Ac, 50Bc.
  • a yoke 44 is supported on each of the recessed recesses 50Ac and 50Bc.
  • a pair of upper and lower magnets 42 are accommodated in each yoke 44 in a pair of upper and lower openings 50Ad and 50Bd formed in the recessed recesses 50Ac and 50Bc.
  • Each yoke 44 is made of a soft iron plate, and has a laterally long rectangular outer shape slightly smaller than each of the recessed recesses 50Ac and 50Bc when viewed from the front.
  • the side end flange portion 44a is bent at a right angle and extends.
  • Each yoke 44 is accommodated in each depressed recess 50Ac, 50Bc in a state where the side end flange portion 44a is inserted into each slit 50Ae, 50Be. At that time, each yoke 44 is arranged in a state in which the front end surface of the side end flange portion 44 a is in close contact with the other yoke 44.
  • Each magnet 42 is an N-48 neodymium magnet and has a horizontally long rectangular parallelepiped shape.
  • the pair of upper and lower magnets 42 attached to each yoke 44 are arranged with their polarities reversed.
  • the pair of upper and lower magnets 42 is in a state where the polarities are reversed between the pair of front and rear yokes 44 (that is, in a state where the polarities of the two pairs of upper and lower magnets 42 are matched with each other in the positional relationship between the two).
  • a magnetic circuit that generates magnetic flux across the space between the magnets 42 of each set is formed by the upper and lower sets of magnets 42 and the pair of front and rear yokes 44.
  • each magnet 42 is arranged in a state where its surface slightly protrudes from the inner surface of each recessed recess 50Ac, 50Bc in a state of being accommodated in each opening 50Ad, 50Bd. And each magnet 42 is arrange
  • each recessed recess 50Ac, 50Bc is set to a value such that the outer surface of the yoke 44 supported by each recessed recess 50Ac, 50Bc is substantially flush with the outer surface of each wall surface 50Aa, 50Ba. Yes. Further, the thickness of each recessed recess 50Ac, 50Bc is set to such a value that the surface of each magnet 42 slightly protrudes from the inner surface of the recessed recess 50Ac, 50Bc.
  • the rear half 50 ⁇ / b> B is formed with a pair of ribs 50 ⁇ / b> Bf extending in the vertical direction in the vicinity of the left and right sides of the movable unit 20.
  • the space in the case 50 has a wider left-right width in the region located on the right side of the pair of ribs 50Bf than in the region located on the left side.
  • a control unit 52 for controlling the induced electromotive force generated by the vibration power generation is disposed in the area located on the right side.
  • the control unit 52 has a configuration in which a power storage control circuit 52B, a transmission control circuit 52C, and the like are mounted on a wiring board 52A supported by the rear half 50B. And this control unit 52 demonstrates the function as a beacon which notifies the circumference
  • the pair of metal springs 60 is composed of a pair of left and right tension coil springs arranged so as to suspend and support the movable unit 20 at the left and right ends thereof.
  • Each metal spring 60 is arranged so as to extend in the vertical direction, and is locked to the movable side unit 20 at the lower end portion 60a and is locked to the fixed side unit 40 at the upper end portion 60b.
  • each metal spring 60 is such that when the movable side unit 20 is suspended and supported by a pair of metal springs 60, the center position of the coil housing portion 30Aa of the coil holder 30 is two sets of upper and lower magnets 42 in the fixed side unit 40. Is set to a value that is substantially the same height as the vertical center position.
  • each metal spring 60 is set to a value corresponding to the vertical acceleration (specifically, acceleration of 1 G or less) generated in the movable unit 20 with a person carrying the vibration power generation device 10. ing.
  • the movable side unit 20 is formed with locking pins 30 d for locking the lower ends 60 a of the metal springs 60 at the upper left and right ends of the coil holder 30.
  • a press-fitting hole 36 b for press-fitting the locking pin 30 d is formed in the upper left and right ends of the frame member 36.
  • the fixed side unit 40 has a locking pin for locking the upper end portion 60 b of each metal spring 60 at two locations on the upper end portion of the outer peripheral flange portion 50 Bb in the rear half 50 B.
  • 50Bg is formed, and press-fitting holes (not shown) for press-fitting the locking pin 50Bg are formed at two positions on the upper end portion of the outer peripheral flange portion 50Ab in the front half 50A.
  • each of the pair of coil terminals 22a extending from the conductive coil 22 is electrically connected to each of the pair of left and right metal springs 60. Yes.
  • a first substrate 62 extending in the left-right direction is attached to the coil holder 30, and a second substrate 64 extending parallel to the first substrate 62 is attached to the rear half 50B. Is attached.
  • the first and second substrates 62 and 64 have a structure in which a pair of left and right conductive patterns 62B and 64B are formed on the rear surfaces of horizontally long insulating plates 62A and 64A having a narrow vertical width.
  • through holes 62a are formed that penetrate the first substrate 62 in the front-rear direction at the position of one end of each conductive pattern 62B.
  • each conductive pattern 62B and each metal spring 60 are electrically connected by being inserted into the pin 30d and bringing each conductive pattern 62B into contact with the lower end portion 60a of each metal spring 60.
  • each coil terminal 22a is electrically connected to each conductive pattern 62B of the first substrate 62 by soldering or the like at the other end.
  • through holes 64a are formed in the left and right ends of the second substrate 64 so as to penetrate the second substrate 64 in the front-rear direction at the position of one end of each conductive pattern 64B.
  • each conductive pattern 64B and each metal spring 60 are electrically connected by being inserted into the pin 50Bg and bringing each conductive pattern 64B into contact with the upper end portion 60b of each metal spring 60.
  • each conductive pattern 64B on the second substrate 64 are electrically connected to the ends of a pair of wiring cords 54 extending from the control unit 52 by soldering or the like.
  • the front half 50A and the rear half 50B are assembled by connecting the pins 50Bi formed at the four corners of the outer peripheral flange portion 50Bb of the rear half 50B to the outer peripheral flange portion 50Ab of the front half 50A. This is performed by press-fitting into press-fitting holes (not shown) formed at the four corners.
  • a cutout portion 50Ah for avoiding interference with the second substrate 64 when assembling with the rear half 50B is formed at the upper end portion of the outer peripheral flange portion 50Ab in the front half 50A.
  • the vibration power generation apparatus 10 has a configuration in which the movable side unit 20 including the conductive coil 22 vibrates in the vertical direction (that is, the required direction) with respect to the fixed side unit 40 including the magnet 42 and the yoke 44.
  • the vibration power generation apparatus 10 can be made thin to some extent because the case 50 for accommodating the movable side unit 20 is provided as the fixed side unit 40.
  • the case 50 includes a pair of wall surface portions 50Aa and 50Ba formed so as to extend in the vertical direction on both sides of the coil holder 30 in the front-rear direction (that is, the plate thickness direction).
  • the recessed portions 50Ac and 50Bc are formed in the recessed portions 50Ac and 50Bc, and a pair of upper and lower openings 50Ad and 50Bd penetrating through the recessed portions 50Ac and 50Bc are formed in the wall portions 50Aa and 50Ba. Since the yoke 44 is supported by the recessed recesses 50Ac and 50Bc, and the magnet 42 is magnetically attracted to the yoke 44, it is accommodated in the openings 50Ad and 50Bd. The following effects can be obtained.
  • the magnet 42 and the yoke 44 can be arranged by using a part of each wall surface portion 50Aa, 50Ba in the case 50, the longitudinal direction of the coil holder 30 that houses the conductive coil 22 in the internal space of the case 50. It is possible to eliminate the need for securing a thick space for disposing the magnet 42 and the yoke 44 on both sides, whereby the vibration power generation apparatus 10 can be configured to be thin.
  • the movable side unit 20 is configured to be accommodated in the case 50.
  • the thickness can be reduced.
  • the vibration power generation apparatus 10 can be made portable.
  • the case 50 is provided with a structure for positioning the pair of upper and lower magnets 42 with respect to each yoke 44, parts such as a magnet holder are not necessary, and thus the vibration power generator 10. The number of parts can be reduced.
  • the recessed portions 50Ac, 50Bc of the wall surface portions 50Aa, 50Ba are substantially flush with the outer surfaces of the wall surface portions 50Aa, 50Ba. Therefore, the vibration power generation apparatus 10 can be thinned to a thickness substantially equal to the thickness of the magnetic circuit formed by the two sets of upper and lower magnets 42 and the pair of front and rear yokes 44. .
  • the recessed recesses 50Ac and 50Bc of the wall surface portions 50Aa and 50Ba are formed thinner than the general portions of the wall surface portions 50Aa and 50Ba, so that the vibration power generator 10 is kept thin.
  • the thickness of each yoke 44 can be ensured to the maximum.
  • a pair of slits 30b extending in the vertical direction is formed in portions of the coil holder 30 located on the left and right sides of the coil housing portion 30a so as to penetrate the coil holder 30 in the front-rear direction.
  • each yoke 44 is disposed with its side end flange portions 44a inserted into the respective slits 30b, the following operational effects can be obtained.
  • the pair of plate-like weights 34 extending in the vertical direction are attached to the portions of the coil holder 30 located on the left and right sides of the pair of slits 30b. Therefore, it is possible to easily adjust the resonance frequency. Moreover, since each weight 34 is disposed at a position away from the magnetic circuit portion formed by the upper and lower two sets of magnets 42 and the pair of front and rear yokes 44, the electromagnetic brake action is applied when the movable unit 20 vibrates. Therefore, it is possible to prevent the power generation amount from being lowered.
  • each weight 34 is made of metal and is disposed in a state where its side end face 34a protrudes into each slit 30b, it is assumed that the movable side unit 20 comes into contact with the fixed side unit 40 when it vibrates. However, the contact is made between the metal of the weight 34 and the yoke 44, so that the frictional resistance can be kept small, and thereby the power generation efficiency of the vibration power generator 10 can be increased.
  • the coil accommodating part 30a of the coil holder 30 is formed as a through-hole penetrating the coil holder 30 in the front-rear direction, and a pair of films 32 that closes the coil accommodating part 30a from both sides in the front-rear direction. Is attached to the coil holder 30, so that the conductive coil 22 can be held while the plate thickness of the coil holder 30 is minimized.
  • the movable side unit 20 is supported by the fixed side unit 40 via a pair of metal springs 60 that can be elastically deformed in the vertical direction, and each of the pair of metal springs 60 is supported. Since each of the pair of coil terminals 22a extending from the conductive coil 22 is electrically connected, each coil terminal 22a is bent by the vibration of the movable unit 20, and a continuous bending stress is generated. It can be prevented in advance. As a result, the conductive coil 22 can be prevented from being inadvertently disconnected, so that the reliability of the vibration power generator 10 can be improved.
  • a first substrate 62 extending in the left-right direction (that is, a direction substantially orthogonal to the required direction) is attached to the coil holder 30, and a second extending substantially parallel to the first substrate 62 to the case 50.
  • a substrate 64 is attached, and each metal spring 60 has a lower end portion 60a (ie, one end portion) locked to the first substrate 62 and an upper end portion 60b (ie, the other end portion) engaged with the second substrate 64. Since each coil terminal 22a is electrically connected to each of the metal springs 60 via the first substrate 62, the following effects can be obtained. .
  • each coil terminal 22a since the routing shape of each coil terminal 22a can be simplified, the electrical connection between each coil terminal 22a and each metal spring 60 can be easily performed. In addition, since it is possible to make an electrical connection with an end portion (that is, an external terminal) of the wiring cord 54 at an arbitrary position on the second substrate 64, the electrical connection between each metal spring 60 and the wiring cord 54 can be established. It can be done easily.
  • the assembly of the front half 50A and the rear half 50B is to form the pins 50Bi formed at the four corners of the outer peripheral flange portion 50Bb of the rear half 50B at the four corners of the outer peripheral flange portion 50Ab of the front half 50A.
  • welding and adhesion are performed between the outer peripheral flange portions 50Ab and 50Bb of the front and rear halves 50A and 50B. It is also possible to adopt a configuration.
  • each conductive pattern 62B of the first substrate 62 is brought into contact with the lower end portion 60a of each metal spring 60, and each conductive pattern 64B of the second substrate 64 is brought into contact with the upper end portion 60b of each metal spring 60.
  • each conductive pattern 62B, 64B and each metal spring 60 are configured to be electrically connected.
  • soldering the two at the contact portion the electrical connection is more reliably performed. It is also possible to adopt a configuration that is performed.
  • the pair of metal springs 60 are described as being composed of a pair of tension coil springs arranged so as to suspend and support the movable side unit 20 at the left and right ends thereof on the fixed side unit 40.
  • other configurations can be employed.
  • plate springs as metal springs are arranged on both the upper and lower sides of the movable unit, and the movable unit is vibrated in the vertical direction with respect to the fixed unit, or metal springs are arranged on both the left and right sides of the movable unit.
  • the side end flange portion 44 a formed at one end portion of each yoke 44 has been described as being inserted into the slits 50 ⁇ / b> Ae and 50 ⁇ / b> Be, but both end portions of either one of the yokes 44 are described. It is also possible to adopt a configuration in which the side end flange portions 44a are inserted into the slits 50Ae and 50Be after the side end flange portions 44a are formed.
  • FIG. 8 is a view similar to FIG. 3, showing the main part of the vibration power generation apparatus 110 according to this modification.
  • the basic configuration of the vibration power generator 110 is the same as that of the above embodiment, but the above embodiment is implemented in that the upper and lower pairs of magnets 42 are disposed only on the rear half 150B. It is different from the case of form.
  • the recessed portions 150Ac and 150Bc are formed in the wall surface portions 150Aa and 150Ba of the front and rear halves 150A and 150B, and the yoke 144 is supported by the recessed portions 150Ac and 150Bc, respectively.
  • a pair of upper and lower openings 150Bd is formed only in the recessed recess 150Bc of the rear half 150B, and such an opening is not formed in the front half 150A.
  • the pair of upper and lower magnets 42 are accommodated in the pair of upper and lower openings 150Bd while being magnetically attracted to the yoke 144. Does not exist.
  • each magnet 42 is arranged at a slight interval from the film 32 attached to the rear surface of the coil holder 30 with its surface slightly protruding from the inner surface of the depressed recess 150Bc. .
  • the wall surface portion 150Aa is displaced rearward as compared with the above embodiment as a whole by the amount of protrusion of the magnet 42 from the recessed recess 150Bc. ing.
  • the distance between the recessed recess 150Ac of the front half 150A and the film 32 affixed to the front surface of the coil holder 30 is the same as the distance between the surface of each magnet 42 and the film 32 affixed to the rear surface of the coil holder 30. Value.
  • the frame member 136 of the movable side unit 120 is formed thinner than the case of the above embodiment by the amount of protrusion of the magnet 42, and the side end flange portion 144a of each yoke 144 is formed. However, it is formed shorter than the case of the above-mentioned embodiment by the amount of protrusion of the magnet 42.
  • the vibration power generator 110 can be further reduced in thickness by the amount of protrusion of the magnet 42 than in the case of the above embodiment.
  • a magnetic circuit can be formed by the upper and lower pair of magnets 42 and the front and rear pair of yokes 144.

Abstract

The purpose of the present invention is to enable the thickness of a vibration powered generator device to be reduced even when a structure in which a movable-side unit is housed inside a case is adopted. The vibration powered generator device is structured such that a movable-side unit comprising a conductive coil vertically vibrates with respect to a stationary-side unit 40 comprising magnets 42 and yokes 44, and the vibration powered generator device is provided with a case 50, serving as the stationary-side unit 40, for housing the movable-side unit. Furthermore, the device has a structure in which concave parts 50Ac, 50Bc are respectively formed on one pair of front and back wall surface parts 50Aa, 50Ba of the case 50, and vertically arranged one pair of upper and lower openings 50Ad, 50Bd are respectively formed in the concave parts 50Ac, 50Bc. In addition, the device is structured such that the yokes 44 are supported on the concave parts 50Ac, 50Bc, and the magnets 42 are housed in the respective openings 50Ad, 50Bd in a state of being magnetically attracted to the yokes 44. Consequently, the magnets 42 and the yokes 44 are allowed to be arranged by utilizing portions of the respective wall surface parts 50Aa, 50Ba.

Description

振動発電装置Vibration power generator
　本願発明は、振動を利用して誘導起電力を生じさせるように構成された振動発電装置に関するものである。 The present invention relates to a vibration power generator configured to generate an induced electromotive force using vibration.
　従来より、人の歩行動作等により自動的に発電し得るように構成された携帯型の振動発電装置が知られている。 2. Description of the Related Art Conventionally, a portable vibration power generation apparatus configured to automatically generate power by a human walking motion or the like is known.
　例えば「特許文献１」には、導電コイルを備えた可動側ユニットが、マグネットおよびヨークを備えた固定側ユニットに対して所要方向に振動することにより、導電コイルに誘導起電力を生じさせるように構成された振動発電装置が記載されている。 For example, in “Patent Document 1”, a movable unit including a conductive coil vibrates in a required direction with respect to a fixed unit including a magnet and a yoke so that an induced electromotive force is generated in the conductive coil. A configured vibration power generator is described.
　一方「特許文献２」には、マグネットおよびヨークを備えた可動側ユニットが、導電コイルを備えた固定側ユニットに対して所要方向に振動することにより、導電コイルに誘導起電力を生じさせるように構成された振動発電装置が記載されている。 On the other hand, in “Patent Document 2”, a movable side unit including a magnet and a yoke vibrates in a required direction with respect to a fixed side unit including a conductive coil, thereby generating an induced electromotive force in the conductive coil. A configured vibration power generator is described.
　この「特許文献２」に記載された振動発電装置は、その固定側ユニットが可動側ユニットを収容するケースを備えた構成となっている。 The vibration power generator described in “Patent Document 2” has a configuration in which the stationary unit includes a case for accommodating the movable unit.
特表２００８－５４３２５４号公報Special table 2008-543254 gazette 特開２０１５－３３２６６号公報Japanese Patent Laid-Open No. 2015-33266
　携帯型の振動発電装置においては、上記「特許文献２」に記載されているように、固定側ユニットとして可動側ユニットを収容するケースを備えた構成とすることが好ましい。 In the portable vibration power generator, as described in the above-mentioned “Patent Document 2”, it is preferable to include a case for accommodating the movable side unit as the fixed side unit.
　しかしながら、この「特許文献２」に記載された振動発電装置においては、上記所要方向に延びる板状のコイルホルダとこのコイルホルダを囲むマグネット、ヨークおよびマグネットを位置決め支持するマグネットホルダとがケースに収容された構成となっているので、振動発電装置を薄型に構成することが困難である。 However, in the vibration power generator described in “Patent Document 2”, the plate-shaped coil holder extending in the required direction and the magnet surrounding the coil holder, the yoke, and the magnet holder for positioning and supporting the magnet are accommodated in the case. Therefore, it is difficult to make the vibration power generator thin.
　一方、上記「特許文献１」に記載された振動発電装置のように、導電コイルを備えた可動側ユニットが、マグネットおよびヨークを備えた固定側ユニットに対して振動する構成とすれば、振動発電装置をある程度薄型化することが可能となる。 On the other hand, if the movable side unit including the conductive coil vibrates with respect to the fixed side unit including the magnet and the yoke as in the vibration power generation apparatus described in the above-mentioned “Patent Document 1”, the vibration power generation It is possible to make the device thinner to some extent.
　しかしながら、この「特許文献１」に記載された振動発電装置も、これを携帯型の振動発電装置として使用する場合には、可動側ユニットおよび固定側ユニットがケースに収容されることとなるので、その薄型化を図ることが困難となる。 However, when the vibration power generation apparatus described in this “Patent Document 1” is also used as a portable vibration power generation apparatus, the movable side unit and the fixed side unit are accommodated in the case. It is difficult to reduce the thickness.
　本願発明は、このような事情に鑑みてなされたものであって、振動を利用して誘導起電力を生じさせるように構成された振動発電装置において、可動側ユニットがケースに収容された構成とした場合であっても、その薄型化を図ることができる振動発電装置を提供することを目的とするものである。 The present invention has been made in view of such circumstances, and in a vibration power generator configured to generate induced electromotive force using vibration, the movable side unit is housed in a case. Even if it is a case, it aims at providing the vibration electric power generating apparatus which can achieve the thickness reduction.
　本願発明は、ケースの構成に工夫を施すことにより、上記目的達成を図るようにしたものである。 The present invention is intended to achieve the above-mentioned object by devising the configuration of the case.
　すなわち、本願発明に係る振動発電装置は、
　導電コイルを備えた可動側ユニットが、マグネットおよびヨークを備えた固定側ユニットに対して所要方向に振動することにより、上記導電コイルに誘導起電力を生じさせるように構成された振動発電装置において、
　上記可動側ユニットは、上記所要方向に延びるように配置された板状のコイルホルダを備えており、
　上記導電コイルは、上記コイルホルダに形成されたコイル収容部に収容されており、
　上記固定側ユニットは、上記可動側ユニットを収容するケースを備えており、
　上記ケースは、上記コイルホルダの板厚方向両側において上記所要方向に延びるように形成された１対の壁面部を備えており、
　上記各壁面部に陥没凹部が形成されており、
　上記１対の壁面部のうちの少なくとも一方における上記陥没凹部の部分に、該陥没凹部を貫通する少なくとも１つの開口部が形成されており、
　上記ヨークは、上記各陥没凹部に支持されており、
　上記マグネットは、上記ヨークに磁気的に吸着された状態で上記各開口部に収容されている、ことを特徴とするものである。 That is, the vibration power generator according to the present invention is
In the vibration power generator configured to generate an induced electromotive force in the conductive coil by causing the movable side unit including the conductive coil to vibrate in a required direction with respect to the fixed side unit including the magnet and the yoke,
The movable side unit includes a plate-shaped coil holder arranged to extend in the required direction,
The conductive coil is housed in a coil housing portion formed in the coil holder,
The fixed side unit includes a case for accommodating the movable side unit,
The case includes a pair of wall surfaces formed to extend in the required direction on both sides of the coil holder in the plate thickness direction,
Recessed depressions are formed in each of the wall surfaces,
At least one opening penetrating through the depressed recess is formed in the depressed recess in at least one of the pair of wall surfaces,
The yoke is supported by the depressed recesses,
The magnet is housed in each of the openings while being magnetically attracted to the yoke.
　上記「コイルホルダ」は、上記所要方向に延びるように配置された板状の部材として構成されていれば、その具体的な構成は特に限定されるものではない。 The specific configuration of the “coil holder” is not particularly limited as long as it is configured as a plate-like member arranged so as to extend in the required direction.
　上記「ケース」は、コイルホルダの板厚方向両側において上記所要方向に延びるように形成された１対の壁面部を備えていれば、それ以外の部分の具体的な構成については特に限定されるものではない。 As long as the “case” includes a pair of wall surfaces formed so as to extend in the required direction on both sides in the plate thickness direction of the coil holder, the specific configuration of the other portions is particularly limited. It is not a thing.
　上記「陥没凹部」の具体的な深さや形成範囲等は特に限定されるものではない。 The specific depth, formation range, etc. of the “recessed recess” are not particularly limited.
　上記「開口部」の具体的な大きさや形状等は特に限定されるものではない。 The specific size and shape of the “opening” are not particularly limited.
　上記１対のヨークのうちの少なくとも一方に対して磁気的に吸着された「マグネット」は、単一であってもよいし複数であってもよい。 The “magnet” magnetically attracted to at least one of the pair of yokes may be single or plural.
　本願発明に係る振動発電装置は、導電コイルを備えた可動側ユニットが、マグネットおよびヨークを備えた固定側ユニットに対して所要方向に振動する構成となっており、その固定側ユニットとして可動側ユニットを収容するケースを備えた構成となっているので、振動発電装置をある程度薄型化することが可能となる。 The vibration power generation apparatus according to the present invention is configured such that a movable side unit including a conductive coil vibrates in a required direction with respect to a fixed side unit including a magnet and a yoke, and the movable side unit is used as the fixed side unit. Therefore, the vibration power generator can be made thin to some extent.
　その際、上記ケースは、コイルホルダの板厚方向両側において上記所要方向に延びるように形成された１対の壁面部を備えているが、各壁面部には陥没凹部が形成されており、また、少なくとも一方の壁面部における陥没凹部の部分には該陥没凹部を貫通する少なくとも１つの開口部が形成されており、そして、上記ヨークは各陥没凹部に支持されており、また、上記マグネットはヨークに磁気的に吸着された状態で各開口部に収容されているので、次のような作用効果を得ることができる。 In this case, the case includes a pair of wall surfaces formed so as to extend in the required direction on both sides in the plate thickness direction of the coil holder. In addition, at least one opening that penetrates the recessed portion is formed in the recessed portion of at least one of the wall portions, and the yoke is supported by each recessed portion, and the magnet is a yoke. Since it is accommodated in each opening in a state of being magnetically attracted to each other, the following effects can be obtained.
　すなわち、ケースにおける各壁面部の一部を利用してマグネットおよびヨークを配置することができるので、導電コイルを収容するコイルホルダの板厚方向両側にマグネットおよびヨークを配置するための分厚いスペースを確保する必要をなくすことができ、これにより振動発電装置を薄型に構成することができる。 That is, since the magnet and the yoke can be arranged by using a part of each wall surface portion in the case, a thick space for arranging the magnet and the yoke is secured on both sides in the plate thickness direction of the coil holder that accommodates the conductive coil. Therefore, the vibration power generation apparatus can be made thin.
　このように本願発明によれば、振動を利用して誘導起電力を生じさせるように構成された振動発電装置において、可動側ユニットがケースに収容された構成とした場合であっても、その薄型化を図ることができる。そしてこれにより振動発電装置を携帯に適したものとすることができる。 As described above, according to the present invention, in the vibration power generator configured to generate the induced electromotive force using the vibration, even if the movable side unit is configured to be accommodated in the case, its thin shape Can be achieved. As a result, the vibration power generator can be made portable.
　しかも本願発明においては、ヨークに対してマグネットを位置決めするための構造がケースに設けられているので、マグネットホルダ等の部品が不要となり、これにより振動発電装置の部品点数削減を図ることができる。 In addition, in the present invention, since the case is provided with a structure for positioning the magnet with respect to the yoke, parts such as a magnet holder are not required, thereby reducing the number of parts of the vibration power generator.
　上記構成において、各壁面部の陥没凹部として、該陥没凹部に支持されたヨークの外表面が壁面部の外表面と略面一となる深さで形成された構成とすれば、１対のヨークとマグネットとで形成される磁気回路の部分の厚さに略等しい厚さまで振動発電装置を薄型化することができる。 In the above configuration, if the recessed portion of each wall surface portion is formed to have a depth in which the outer surface of the yoke supported by the recessed portion is substantially flush with the outer surface of the wall surface portion, a pair of yokes The vibration power generator can be thinned to a thickness substantially equal to the thickness of the magnetic circuit portion formed by the magnet and the magnet.
　上記構成において、コイルホルダにおけるコイル収容部の両側に位置する部分に、該コイルホルダを板厚方向に貫通した状態で上記所要方向に延びる１対のスリットが形成された構成とした上で、１対のヨークのうちの少なくとも一方の構成として、該ヨークの一部がスリットに挿入された状態で配置された構成とすれば、次のような作用効果を得ることができる。 In the above configuration, a pair of slits extending in the required direction with the coil holder penetrating in the plate thickness direction are formed in portions located on both sides of the coil housing portion in the coil holder. If at least one of the pair of yokes is configured such that a part of the yoke is inserted into the slit, the following effects can be obtained.
　すなわち、可動側ユニットが振動する際、コイルホルダが所期の姿勢から大きく傾斜してしまうのを、ヨークとスリットとの係合作用によって未然に防止することができ、これにより発電効率の低下を効果的に抑制することができる。 That is, when the movable unit vibrates, it is possible to prevent the coil holder from being largely inclined from the intended posture by the engagement action between the yoke and the slit, thereby reducing the power generation efficiency. It can be effectively suppressed.
　このような構成を採用した上で、コイルホルダにおける１対のスリットの両側に位置する部分に、上記所要方向に延びる１対の板状の錘が取り付けられた構成とすれば、振動発電装置を薄型に維持した上で、その共振周波数の調整を図ることが容易に可能となる。しかも、各錘は１対のヨークとマグネットとで形成される磁気回路の部分から外れた位置に配置されているので、可動側ユニットが振動する際に電磁ブレーキ作用によって発電量が低下してしまうのを未然に防止することができる。 If such a configuration is adopted and a configuration in which a pair of plate-like weights extending in the required direction is attached to portions located on both sides of the pair of slits in the coil holder, the vibration power generator is provided. It is possible to easily adjust the resonance frequency while maintaining a thin shape. Moreover, since each weight is disposed at a position away from the magnetic circuit formed by the pair of yokes and magnets, the amount of power generation is reduced by the electromagnetic brake action when the movable unit vibrates. Can be prevented beforehand.
　さらに、このような構成を採用した上で、各錘が金属製であってその側端面を各スリットに突出させた状態で配置された構成とすれば、可動側ユニットが振動したときに固定側ユニットと接触したとしても、その接触は錘とヨークとの金属同士で行われることとなるので摩擦抵抗を小さく抑えることができ、これにより振動発電装置の発電効率を高めることができる。 Furthermore, if such a configuration is adopted and each weight is made of metal and arranged with its side end surface protruding into each slit, the fixed side will be fixed when the movable unit vibrates. Even if it comes into contact with the unit, the contact is made between the metal of the weight and the yoke, so that the frictional resistance can be kept small, thereby increasing the power generation efficiency of the vibration power generator.
　上記構成において、コイルホルダのコイル収容部として、コイルホルダを板厚方向に貫通する貫通孔として形成された構成とした上で、このコイル収容部を板厚方向両側から塞ぐ１対のフィルムがコイルホルダに貼付された構成とすれば、コイルホルダの板厚を最小限に抑えた上で導電コイルの保持を行うことができる。 In the above configuration, as a coil housing portion of the coil holder, a pair of films that closes the coil housing portion from both sides in the plate thickness direction are formed as a through hole that penetrates the coil holder in the plate thickness direction. If it is set as the structure affixed on the holder, a conductive coil can be hold | maintained, keeping the plate | board thickness of a coil holder to the minimum.
　上記構成において、可動側ユニットが上記所要方向に弾性変形可能な１対の金属バネを介して固定側ユニットに支持された構成を採用した上で、これら１対の金属バネの各々に対して、導電コイルから延びる１対のコイル端末の各々が電気的に接続された構成とすれば、可動側ユニットの振動によって各コイル端末が撓んで連続的な曲げ応力が発生してしまうのを未然に防止することができる。そしてこれにより、導電コイルが不用意に断線してしまわないようにすることができるので、振動発電装置の信頼性を高めることができる。 In the above configuration, after adopting a configuration in which the movable side unit is supported by the fixed side unit via a pair of metal springs that can be elastically deformed in the required direction, each of the pair of metal springs, If each of the pair of coil terminals extending from the conductive coil is electrically connected, it is possible to prevent the coil terminals from bending due to the vibration of the movable unit and generating continuous bending stress. can do. As a result, it is possible to prevent the conductive coil from being inadvertently disconnected, so that the reliability of the vibration power generator can be improved.
　その際、コイルホルダに上記所要方向と略直交する方向に延びる第１基板が取り付けられるとともに、ケースに第１基板と略平行に延びる第２基板が取り付けられた構成とした上で、各金属バネを、第１基板に一端部が係止されるとともに第２基板に他端部が係止されたコイルバネで構成し、これら各金属バネに対する各コイル端末の電気的な接続が第１基板を介して行われる構成とすれば、次のような作用効果を得ることができる。 At that time, the first spring extending in a direction substantially orthogonal to the required direction is attached to the coil holder, and the second spring extending substantially parallel to the first board is attached to the case. And a coil spring having one end locked to the first substrate and the other end locked to the second substrate, and the electrical connection of each coil terminal to each metal spring is via the first substrate. The following operational effects can be obtained.
　すなわち、各コイル端末の引回し形状を単純化することができるので、各コイル端末と各金属バネとの電気的な接続を容易に行うことができる。また、第２基板の任意の位置において外部端子との電気的な接続を行うことができるので、各金属バネと外部端子との電気的な接続を容易に行うことができる。 That is, since the routing shape of each coil terminal can be simplified, electrical connection between each coil terminal and each metal spring can be easily performed. Moreover, since the electrical connection with the external terminal can be performed at an arbitrary position on the second substrate, the electrical connection between each metal spring and the external terminal can be easily performed.
本願発明の一実施形態に係る振動発電装置を示す斜視図The perspective view which shows the vibration electric power generating apparatus which concerns on one Embodiment of this invention. 上記振動発電装置の水平断面形状を、図１のII－II線の位置で示す図A diagram showing the horizontal cross-sectional shape of the vibration power generator at the position of line II-II in FIG. 図２のIII 部詳細図Detailed view of section III in Fig. 2 上記振動発電装置を、そのケースの前側ハーフを取り外した状態で示す正面図Front view showing the vibration power generator with the front half of the case removed 上記振動発電装置を、その構成要素に分解して示す斜視図The perspective view which decomposes | disassembles and shows the said vibration electric power generating apparatus in the component. 図５における可動側ユニットおよび１対の金属バネに関連する部分を取り出して示す斜視図The perspective view which takes out the part relevant to the movable side unit in FIG. 5, and a pair of metal spring, and shows it 図５における固定側ユニットの部分を取り出して示す斜視図The perspective view which takes out and shows the part of the fixed side unit in FIG. 上記実施形態の変形例を示す、図３と同様の図The same figure as FIG. 3 which shows the modification of the said embodiment.
　以下、図面を用いて、本願発明の実施の形態について説明する。 Hereinafter, embodiments of the present invention will be described with reference to the drawings.
　図１は、本願発明の一実施形態に係る振動発電装置１０を示す斜視図である。 FIG. 1 is a perspective view showing a vibration power generation apparatus 10 according to an embodiment of the present invention.
　同図に示すように、この振動発電装置１０は、横長矩形状の正面形状を有するカード型の振動発電装置として構成されている。そして、この振動発電装置１０は、例えば、人の首から吊り下げられたカードホルダ等に収容された状態で持ち歩かれることにより振動発電が行われ、この振動発電によって生じた誘導起電力を利用して振動発電装置１０を携帯している人のＩＤ情報を周囲に知らせるビーコンとして機能することにより、電池不要の通行証等として利用されるようになっている。 As shown in the figure, the vibration power generation device 10 is configured as a card-type vibration power generation device having a horizontally long rectangular front shape. The vibration power generation apparatus 10 generates vibration power by being carried in a state of being accommodated in, for example, a card holder suspended from a person's neck, and uses the induced electromotive force generated by the vibration power generation. By functioning as a beacon that informs the surroundings of the ID information of the person carrying the vibration power generation device 10, it is used as a battery-free pass.
　この振動発電装置１０は、導電コイル２２を備えた可動側ユニット２０が、マグネット４２およびヨーク４４を備えた固定側ユニット４０に対して、上下方向に弾性変形可能な１対の金属バネ６０を介して支持された構成となっている。 In this vibration power generation apparatus 10, the movable side unit 20 including the conductive coil 22 is interposed via a pair of metal springs 60 that can be elastically deformed in the vertical direction with respect to the fixed side unit 40 including the magnet 42 and the yoke 44. The structure is supported.
　そして、この振動発電装置１０においては、可動側ユニット２０が固定側ユニット４０に対して上下方向に振動することにより、導電コイル２２に誘導起電力を生じさせるようになっている。 In the vibration power generation apparatus 10, the movable side unit 20 vibrates in the vertical direction with respect to the fixed side unit 40, thereby generating an induced electromotive force in the conductive coil 22.
　固定側ユニット４０は、可動側ユニット２０を収容する樹脂製のケース５０を備えている。このケース５０は、横長矩形状の正面形状を有する同一サイズの前側および後側ハーフ５０Ａ、５０Ｂを、可動側ユニット２０および１対の金属バネ６０を前後両側から挟み込むようにして組み付けることによって構成されている。 The fixed unit 40 includes a resin case 50 that houses the movable unit 20. The case 50 is configured by assembling front and rear halves 50A and 50B of the same size having a horizontally long rectangular front shape so that the movable unit 20 and a pair of metal springs 60 are sandwiched from both front and rear sides. ing.
　図２は、振動発電装置１０の水平断面形状を、図１のII－II線の位置で示す図であり、図３は、そのIII 部詳細図である。また、図４は、振動発電装置１０を前側ハーフ５０Ａを取り外した状態で示す正面図である。さらに、図５は、振動発電装置１０をその構成要素に分解して示す斜視図である。 FIG. 2 is a diagram showing the horizontal cross-sectional shape of the vibration power generator 10 at the position of the line II-II in FIG. 1, and FIG. FIG. 4 is a front view showing the vibration power generator 10 with the front half 50A removed. Furthermore, FIG. 5 is a perspective view showing the vibration power generation apparatus 10 in an exploded manner.
　まず、可動側ユニット２０の構成について説明する。 First, the configuration of the movable unit 20 will be described.
　図６は、図５における可動側ユニット２０および１対の金属バネ６０に関連する部分を取り出して示す斜視図である。 FIG. 6 is a perspective view showing a portion related to the movable side unit 20 and the pair of metal springs 60 in FIG.
　同図にも示すように、可動側ユニット２０は、上下方向に延びるように配置された板状のコイルホルダ３０を備えている。 As shown in the figure, the movable side unit 20 includes a plate-like coil holder 30 arranged so as to extend in the vertical direction.
　このコイルホルダ３０の中央部には、横長長円形のコイル収容部３０ａが形成されており、このコイル収容部３０ａに導電コイル２２が収容されている。 The center portion of the coil holder 30 is formed with a horizontally long oval coil housing portion 30a, and the conductive coil 22 is housed in the coil housing portion 30a.
　コイル収容部３０ａは、コイルホルダ３０を前後方向に貫通する貫通孔として形成されている。そして、コイルホルダ３０には、コイル収容部３０ａを前後両側から塞ぐ１対のフィルム３２が貼付されている。 The coil housing portion 30a is formed as a through hole that penetrates the coil holder 30 in the front-rear direction. A pair of films 32 are attached to the coil holder 30 to close the coil housing portion 30a from the front and rear sides.
　各フィルム３２は、コイルホルダ３０の前後両側の各表面において、コイル収容部３０ａの左右幅よりもやや広い左右幅でコイルホルダ３０の上下両端面近傍までの範囲を覆うようにして貼付されている。そして、導電コイル２２は、後方側に位置するフィルム３２に貼付された状態でコイル収容部３０ａに収容されている。 Each film 32 is affixed on each of the front and rear sides of the coil holder 30 so as to cover the range up to the vicinity of the upper and lower end faces of the coil holder 30 with a width that is slightly wider than the left and right width of the coil housing portion 30a. . And the conductive coil 22 is accommodated in the coil accommodating part 30a in the state affixed on the film 32 located in the back side.
　コイルホルダ３０は、ＡＢＳ樹脂等の汎用樹脂で構成されているが、各フィルム３２は、例えば超高分子量ポリエチレンフィルム等のような摩擦係数が小さいフィルムで構成されている。 The coil holder 30 is made of a general-purpose resin such as ABS resin, but each film 32 is made of a film having a small coefficient of friction such as an ultrahigh molecular weight polyethylene film.
　コイルホルダ３０におけるコイル収容部３０ａの左右両側に位置する部分には、該コイルホルダ３０を前後方向に貫通した状態で上下方向に延びる１対のスリット３０ｂが形成されている。各スリット３０ｂは、コイルホルダ３０の上下両端面近傍まで延びるように形成されている。 A pair of slits 30b extending in the vertical direction are formed in portions of the coil holder 30 that are positioned on both the left and right sides of the coil housing portion 30a in a state of passing through the coil holder 30 in the front-rear direction. Each slit 30b is formed to extend to the vicinity of both upper and lower end faces of the coil holder 30.
　このコイルホルダ３０の前面における１対のスリット３０ｂの左右両側に位置する部分は、その前面が後方側に変位した薄肉部３０ｅとして形成されており、これら左右１対の薄肉部３０ｅには上下方向に延びる１対の板状の錘３４が取り付けられている。 The portions located on the left and right sides of the pair of slits 30b on the front surface of the coil holder 30 are formed as thin portions 30e whose front surfaces are displaced rearward, and the pair of left and right thin portions 30e are arranged in the vertical direction. A pair of plate-like weights 34 are attached to each other.
　各錘３４は、非磁性金属板（例えば真鍮板）として構成されており、縦長矩形状の正面形状を有している。そして、各錘３４は、その互いに向き合う側端面３４ａを各スリット３０ｂに僅かに突出させた状態で配置されている。 Each weight 34 is configured as a non-magnetic metal plate (for example, a brass plate) and has a vertically long rectangular front shape. Each weight 34 is arranged with its side end surfaces 34a facing each other slightly projecting into each slit 30b.
　コイルホルダ３０の前面には、板状に形成された樹脂製（例えばＡＢＳ樹脂製）のフレーム部材３６が取り付けられており、これらによって左右１対の錘３４を位置決めした状態で支持するようになっている。 A frame member 36 made of resin (for example, made of ABS resin) formed in a plate shape is attached to the front surface of the coil holder 30, and supports a pair of left and right weights 34 in a positioned state. ing.
　すなわち、コイルホルダ３０の前面における四隅の部分には、前方へ突出する位置決めピン３０ｃが形成されている。一方、各錘３４の上下両端部には、各位置決めピン３０ｃを挿通させるための挿通孔３４ｂが形成されている。さらに、フレーム部材３６における四隅の部分には、各位置決めピン３０ｃを圧入するための圧入孔３６ａが形成されている。 That is, positioning pins 30 c that protrude forward are formed at the four corners of the front surface of the coil holder 30. On the other hand, insertion holes 34b through which the positioning pins 30c are inserted are formed at both upper and lower ends of each weight 34. Further, press-fitting holes 36 a for press-fitting each positioning pin 30 c are formed at the four corners of the frame member 36.
　そして、コイルホルダ３０の各位置決めピン３０ｃを各錘３４の各挿通孔３４ｂに挿通させた状態で、その先端部をフレーム部材３６の各圧入孔３６ａに圧入することにより、左右１対の錘３４を位置決めした状態で支持するようになっている。 Then, with the positioning pins 30c of the coil holder 30 inserted into the insertion holes 34b of the weights 34, the distal ends thereof are press-fitted into the press-fitting holes 36a of the frame member 36, whereby a pair of left and right weights 34 is obtained. Is supported in a positioned state.
　フレーム部材３６は、正面視においてコイルホルダ３０と同一サイズの外形形状を有している。また、このフレーム部材３６は、コイルホルダ３０に形成された左右１対のスリット３０ｂの外側縁と両スリット３０ｂの上下両端縁とによって形成される矩形形状と同一サイズの開口形状を有している。 The frame member 36 has the same outer shape as the coil holder 30 in a front view. The frame member 36 has an opening shape having the same size as a rectangular shape formed by the outer edges of the pair of left and right slits 30b formed in the coil holder 30 and the upper and lower end edges of both slits 30b. .
　次に、固定側ユニット４０の構成について説明する。 Next, the configuration of the fixed unit 40 will be described.
　図７は、図５における固定側ユニット４０の部分を取り出して示す斜視図である。 FIG. 7 is a perspective view showing the fixed side unit 40 in FIG.
　同図にも示すように、ケース５０を構成する前側および後側ハーフ５０Ａ、５０Ｂは、左右方向に沿った鉛直面内において上下方向に延びる壁面部５０Ａａ、５０Ｂａと、その外周縁部においてケース内側に向かって延びる外周フランジ部５０Ａｂ、５０Ｂｂとを備えている。 As shown in the figure, the front and rear halves 50A and 50B constituting the case 50 include wall surface portions 50Aa and 50Ba extending in the vertical direction in the vertical plane along the left-right direction, and the case inner side at the outer peripheral edge portion thereof. Outer peripheral flange portions 50Ab and 50Bb extending toward the front.
　各壁面部５０Ａａ、５０Ｂａは平板状に形成されているが、その略中央部にはケース内側に段下がりとなった陥没凹部５０Ａｃ、５０Ｂｃが形成されている。各陥没凹部５０Ａｃ、５０Ｂｃは、横長矩形状の正面形状を有しており、各壁面部５０Ａａ、５０Ｂａの一般部分よりも薄肉に形成されている。 Each of the wall surface portions 50Aa and 50Ba is formed in a flat plate shape, and recessed portions 50Ac and 50Bc that are stepped down on the inner side of the case are formed at the substantially central portion thereof. Each depressed recess 50Ac, 50Bc has a horizontally long front shape, and is thinner than the general portion of each wall surface 50Aa, 50Ba.
　各陥没凹部５０Ａｃ、５０Ｂｃには、該陥没凹部５０Ａｃ、５０Ｂｃを前後方向に貫通する上下１対の開口部５０Ａｄ、５０Ｂｄが形成されている。各開口部５０Ａｄ、５０Ｂｄは、横長矩形状の開口形状を有している。 A pair of upper and lower openings 50Ad and 50Bd penetrating through the recessed recesses 50Ac and 50Bc in the front-rear direction are formed in the recessed recesses 50Ac and 50Bc. Each opening 50Ad, 50Bd has a horizontally long rectangular opening.
　また、各壁面部５０Ａａ、５０Ｂａにおける陥没凹部５０Ａｃ、５０Ｂｃの左右両側には、該壁面部５０Ａａ、５０Ｂａを前後方向に貫通する左右１対のスリット５０Ａｅ、５０Ｂｅが形成されている。各スリット５０Ａｅ、５０Ｂｅは、各陥没凹部５０Ａｃ、５０Ｂｃの側端縁に沿って上下方向に延びる縦長矩形状の開口形状を有している。 Further, a pair of left and right slits 50Ae and 50Be penetrating the wall surface portions 50Aa and 50Ba in the front-rear direction are formed on both left and right sides of the recessed portions 50Ac and 50Bc in the wall surface portions 50Aa and 50Ba. Each slit 50Ae, 50Be has a vertically long rectangular opening shape extending in the vertical direction along the side edge of each recessed recess 50Ac, 50Bc.
　各陥没凹部５０Ａｃ、５０Ｂｃには、ヨーク４４がそれぞれ支持されている。また、各陥没凹部５０Ａｃ、５０Ｂｃに形成された上下１対の開口部５０Ａｄ、５０Ｂｄには、上下１対のマグネット４２が各ヨーク４４に磁気的に吸着された状態で収容されている。 A yoke 44 is supported on each of the recessed recesses 50Ac and 50Bc. In addition, a pair of upper and lower magnets 42 are accommodated in each yoke 44 in a pair of upper and lower openings 50Ad and 50Bd formed in the recessed recesses 50Ac and 50Bc.
　各ヨーク４４は、軟鉄板で構成されており、正面視において各陥没凹部５０Ａｃ、５０Ｂｃよりも僅かに小さい横長矩形状の外形形状を有しており、その一側端部にはケース内側へ向けて直角に折れ曲がって延びる側端フランジ部４４ａが形成されている。そして、各ヨーク４４は、その側端フランジ部４４ａが各スリット５０Ａｅ、５０Ｂｅに挿通された状態で、各陥没凹部５０Ａｃ、５０Ｂｃに収容されている。その際、各ヨーク４４は、その側端フランジ部４４ａの先端面が他方のヨーク４４に密着した状態で配置されるようになっている。 Each yoke 44 is made of a soft iron plate, and has a laterally long rectangular outer shape slightly smaller than each of the recessed recesses 50Ac and 50Bc when viewed from the front. The side end flange portion 44a is bent at a right angle and extends. Each yoke 44 is accommodated in each depressed recess 50Ac, 50Bc in a state where the side end flange portion 44a is inserted into each slit 50Ae, 50Be. At that time, each yoke 44 is arranged in a state in which the front end surface of the side end flange portion 44 a is in close contact with the other yoke 44.
　各マグネット４２は、Ｎ－４８ネオジウム磁石であって、横長の直方体形状を有している。 Each magnet 42 is an N-48 neodymium magnet and has a horizontally long rectangular parallelepiped shape.
　各ヨーク４４に取り付けられた上下１対のマグネット４２は、極性を逆にした状態で配置されている。また、これら上下１対のマグネット４２は、前後１対のヨーク４４相互間においても極性を逆にした状態（すなわち上下２組のマグネット４２の極性を襷がけの位置関係で一致させた状態）で配置されている。そしてこれにより、上下２組のマグネット４２および前後１対のヨーク４４によって、各組のマグネット４２相互間の空間を横切る磁束を生じさせる磁気回路が形成されるようになっている。 The pair of upper and lower magnets 42 attached to each yoke 44 are arranged with their polarities reversed. In addition, the pair of upper and lower magnets 42 is in a state where the polarities are reversed between the pair of front and rear yokes 44 (that is, in a state where the polarities of the two pairs of upper and lower magnets 42 are matched with each other in the positional relationship between the two). Has been placed. As a result, a magnetic circuit that generates magnetic flux across the space between the magnets 42 of each set is formed by the upper and lower sets of magnets 42 and the pair of front and rear yokes 44.
　図３に示すように、各マグネット４２は、各開口部５０Ａｄ、５０Ｂｄに収容された状態において、その表面が各陥没凹部５０Ａｃ、５０Ｂｃの内表面から僅かに突出した状態で配置されている。そして、各マグネット４２は、コイルホルダ３０の前後両面に貼付されたフィルム３２と僅かな間隔をおいて配置されている。 As shown in FIG. 3, each magnet 42 is arranged in a state where its surface slightly protrudes from the inner surface of each recessed recess 50Ac, 50Bc in a state of being accommodated in each opening 50Ad, 50Bd. And each magnet 42 is arrange | positioned at slight intervals with the film 32 stuck on both front and back surfaces of the coil holder 30.
　各陥没凹部５０Ａｃ、５０Ｂｃの深さは、該各陥没凹部５０Ａｃ、５０Ｂｃに支持されたヨーク４４の外表面が各壁面部５０Ａａ、５０Ｂａの外表面と略面一となるような値に設定されている。また、各陥没凹部５０Ａｃ、５０Ｂｃの肉厚は、該陥没凹部５０Ａｃ、５０Ｂｃの内表面から各マグネット４２の表面が僅かに突出するような値に設定されている。 The depth of each recessed recess 50Ac, 50Bc is set to a value such that the outer surface of the yoke 44 supported by each recessed recess 50Ac, 50Bc is substantially flush with the outer surface of each wall surface 50Aa, 50Ba. Yes. Further, the thickness of each recessed recess 50Ac, 50Bc is set to such a value that the surface of each magnet 42 slightly protrudes from the inner surface of the recessed recess 50Ac, 50Bc.
　図４に示すように、後側ハーフ５０Ｂには、可動側ユニット２０の左右両側近傍において上下方向に延びる１対のリブ５０Ｂｆが形成されている。 As shown in FIG. 4, the rear half 50 </ b> B is formed with a pair of ribs 50 </ b> Bf extending in the vertical direction in the vicinity of the left and right sides of the movable unit 20.
　ケース５０内の空間は、１対のリブ５０Ｂｆの右側に位置する領域の方が左側に位置する領域よりも広い左右幅を有している。そして、この右側に位置する領域には、振動発電によって生じた誘導起電力を制御するための制御ユニット５２が配置されている。 The space in the case 50 has a wider left-right width in the region located on the right side of the pair of ribs 50Bf than in the region located on the left side. A control unit 52 for controlling the induced electromotive force generated by the vibration power generation is disposed in the area located on the right side.
　この制御ユニット５２は、後側ハーフ５０Ｂに支持された配線基板５２Ａに蓄電制御回路５２Ｂや発信制御回路５２Ｃ等が搭載された構成となっている。そして、この制御ユニット５２は、振動発電によって生じた誘導起電力を利用して、振動発電装置１０を携帯している人のＩＤ情報を周囲に知らせるビーコンとしての機能を発揮するようになっている。 The control unit 52 has a configuration in which a power storage control circuit 52B, a transmission control circuit 52C, and the like are mounted on a wiring board 52A supported by the rear half 50B. And this control unit 52 demonstrates the function as a beacon which notifies the circumference | surroundings of ID information of the person who is carrying the vibration power generation apparatus 10 using the induced electromotive force produced by vibration power generation. .
　次に、１対の金属バネ６０およびその周辺の構成について説明する。 Next, the configuration of the pair of metal springs 60 and their surroundings will be described.
　図４に示すように、１対の金属バネ６０は、可動側ユニット２０をその左右両端部において固定側ユニット４０に吊り支持するように配置された左右１対の引張コイルバネで構成されている。 As shown in FIG. 4, the pair of metal springs 60 is composed of a pair of left and right tension coil springs arranged so as to suspend and support the movable unit 20 at the left and right ends thereof.
　各金属バネ６０は、上下方向に延びるように配置されており、その下端部６０ａにおいて可動側ユニット２０に係止されるとともに、その上端部６０ｂにおいて固定側ユニット４０に係止されている。 Each metal spring 60 is arranged so as to extend in the vertical direction, and is locked to the movable side unit 20 at the lower end portion 60a and is locked to the fixed side unit 40 at the upper end portion 60b.
　各金属バネ６０のコイル長は、１対の金属バネ６０によって可動側ユニット２０を吊り支持したとき、そのコイルホルダ３０のコイル収容部３０Ａａの中心位置が固定側ユニット４０における上下２組のマグネット４２の上下方向の中心位置と略同じ高さになる値に設定されている。 The coil length of each metal spring 60 is such that when the movable side unit 20 is suspended and supported by a pair of metal springs 60, the center position of the coil housing portion 30Aa of the coil holder 30 is two sets of upper and lower magnets 42 in the fixed side unit 40. Is set to a value that is substantially the same height as the vertical center position.
　また、各金属バネ６０のバネ定数は、人が振動発電装置１０を携帯した状態で可動側ユニット２０に発生する上下方向の加速度（具体的には１Ｇ以下の加速度）に応じた値に設定されている。 In addition, the spring constant of each metal spring 60 is set to a value corresponding to the vertical acceleration (specifically, acceleration of 1 G or less) generated in the movable unit 20 with a person carrying the vibration power generation device 10. ing.
　図６に示すように、可動側ユニット２０には、そのコイルホルダ３０の左右上端部に、各金属バネ６０の下端部６０ａを係止するための係止ピン３０ｄが形成されており、また、そのフレーム部材３６の左右上端部に、係止ピン３０ｄを圧入するための圧入孔３６ｂが形成されている。 As shown in FIG. 6, the movable side unit 20 is formed with locking pins 30 d for locking the lower ends 60 a of the metal springs 60 at the upper left and right ends of the coil holder 30. A press-fitting hole 36 b for press-fitting the locking pin 30 d is formed in the upper left and right ends of the frame member 36.
　一方、図７に示すように、固定側ユニット４０には、その後側ハーフ５０Ｂにおける外周フランジ部５０Ｂｂの上端部の２箇所に、各金属バネ６０の上端部６０ｂを係止するための係止ピン５０Ｂｇが形成されており、また、その前側ハーフ５０Ａにおける外周フランジ部５０Ａｂの上端部の２箇所に、係止ピン５０Ｂｇを圧入するための圧入孔（図示せず）が形成されている。 On the other hand, as shown in FIG. 7, the fixed side unit 40 has a locking pin for locking the upper end portion 60 b of each metal spring 60 at two locations on the upper end portion of the outer peripheral flange portion 50 Bb in the rear half 50 B. 50Bg is formed, and press-fitting holes (not shown) for press-fitting the locking pin 50Bg are formed at two positions on the upper end portion of the outer peripheral flange portion 50Ab in the front half 50A.
　図４に示すように、本実施形態においては、左右１対の金属バネ６０の各々に対して、導電コイル２２から延びる１対のコイル端末２２ａの各々が電気的に接続された構成となっている。 As shown in FIG. 4, in this embodiment, each of the pair of coil terminals 22a extending from the conductive coil 22 is electrically connected to each of the pair of left and right metal springs 60. Yes.
　以下、その具体的な構成について説明する。 The specific configuration will be described below.
　すなわち、図４に示すように、コイルホルダ３０には、左右方向に延びる第１基板６２が取り付けられており、また、後側ハーフ５０Ｂには、第１基板６２と平行に延びる第２基板６４が取り付けられている。 That is, as shown in FIG. 4, a first substrate 62 extending in the left-right direction is attached to the coil holder 30, and a second substrate 64 extending parallel to the first substrate 62 is attached to the rear half 50B. Is attached.
　これら第１および第２基板６２、６４は、上下幅の狭い横長の絶縁板６２Ａ、６４Ａの後面に、左右１対の導電パターン６２Ｂ、６４Ｂが形成された構成となっている。 The first and second substrates 62 and 64 have a structure in which a pair of left and right conductive patterns 62B and 64B are formed on the rear surfaces of horizontally long insulating plates 62A and 64A having a narrow vertical width.
　第１基板６２の左右両端部には、該第１基板６２を各導電パターン６２Ｂの一端部の位置において前後方向に貫通する貫通孔６２ａが形成されている。 At the left and right ends of the first substrate 62, through holes 62a are formed that penetrate the first substrate 62 in the front-rear direction at the position of one end of each conductive pattern 62B.
　そして、予め各金属バネ６０の下端部６０ａが係止されたコイルホルダ３０の各係止ピン３０ｄをフレーム部材３６の圧入孔３６ｂに圧入する際、第１基板６２の各貫通孔６２ａを係止ピン３０ｄに挿通させて、各導電パターン６２Ｂを各金属バネ６０の下端部６０ａに当接させることにより、各導電パターン６２Ｂと各金属バネ６０とを電気的に接続するようになっている。 When the locking pins 30d of the coil holder 30 with the lower end portions 60a of the metal springs 60 previously locked are press-fitted into the press-fitting holes 36b of the frame member 36, the through holes 62a of the first substrate 62 are locked. Each conductive pattern 62B and each metal spring 60 are electrically connected by being inserted into the pin 30d and bringing each conductive pattern 62B into contact with the lower end portion 60a of each metal spring 60.
　一方、各コイル端末２２ａは、第１基板６２の各導電パターン６２Ｂに対して、その他端部においてハンダ付け等によって電気的に接続されている。 On the other hand, each coil terminal 22a is electrically connected to each conductive pattern 62B of the first substrate 62 by soldering or the like at the other end.
　また、第２基板６４の左右両端部には、該第２基板６４を各導電パターン６４Ｂの一端部の位置において前後方向に貫通する貫通孔６４ａが形成されている。 In addition, through holes 64a are formed in the left and right ends of the second substrate 64 so as to penetrate the second substrate 64 in the front-rear direction at the position of one end of each conductive pattern 64B.
　そして、各金属バネ６０の上端部６０ｂが係止された後側ハーフ５０Ｂの各係止ピン５０Ｂｇを前側ハーフ５０Ａの各圧入孔に圧入する際、第２基板６４の各貫通孔６４ａを係止ピン５０Ｂｇに挿通させて、各導電パターン６４Ｂを各金属バネ６０の上端部６０ｂに当接させることにより、各導電パターン６４Ｂと各金属バネ６０とを電気的に接続するようになっている。 When the locking pins 50Bg of the rear half 50B with the upper end portions 60b of the metal springs 60 locked are press-fitted into the press-fitting holes of the front half 50A, the through holes 64a of the second substrate 64 are locked. Each conductive pattern 64B and each metal spring 60 are electrically connected by being inserted into the pin 50Bg and bringing each conductive pattern 64B into contact with the upper end portion 60b of each metal spring 60.
　そして、第２基板６４における各導電パターン６４Ｂの他端部には、制御ユニット５２から延びる１対の配線コード５４の端部がハンダ付け等によって電気的に接続されている。 And, the other ends of each conductive pattern 64B on the second substrate 64 are electrically connected to the ends of a pair of wiring cords 54 extending from the control unit 52 by soldering or the like.
　なお、図７に示すように、前側ハーフ５０Ａと後側ハーフ５０Ｂとの組付けは、後側ハーフ５０Ｂの外周フランジ部５０Ｂｂの四隅に形成されたピン５０Ｂｉを前側ハーフ５０Ａの外周フランジ部５０Ａｂの四隅に形成された圧入孔（図示せず）に圧入することによって行われるようになっている。また、前側ハーフ５０Ａにおける外周フランジ部５０Ａｂの上端部には、後側ハーフ５０Ｂとの組付けの際に第２基板６４との干渉を回避するための切欠き部５０Ａｈが形成されている。 As shown in FIG. 7, the front half 50A and the rear half 50B are assembled by connecting the pins 50Bi formed at the four corners of the outer peripheral flange portion 50Bb of the rear half 50B to the outer peripheral flange portion 50Ab of the front half 50A. This is performed by press-fitting into press-fitting holes (not shown) formed at the four corners. In addition, a cutout portion 50Ah for avoiding interference with the second substrate 64 when assembling with the rear half 50B is formed at the upper end portion of the outer peripheral flange portion 50Ab in the front half 50A.
　次に本実施形態の作用効果について説明する。 Next, the function and effect of this embodiment will be described.
　本実施形態に係る振動発電装置１０は、導電コイル２２を備えた可動側ユニット２０が、マグネット４２およびヨーク４４を備えた固定側ユニット４０に対して上下方向（すなわち所要方向）に振動する構成となっており、その固定側ユニット４０として可動側ユニット２０を収容するケース５０を備えた構成となっているので、振動発電装置１０をある程度薄型化することが可能となる。 The vibration power generation apparatus 10 according to the present embodiment has a configuration in which the movable side unit 20 including the conductive coil 22 vibrates in the vertical direction (that is, the required direction) with respect to the fixed side unit 40 including the magnet 42 and the yoke 44. Thus, the vibration power generation apparatus 10 can be made thin to some extent because the case 50 for accommodating the movable side unit 20 is provided as the fixed side unit 40.
　その際、ケース５０は、コイルホルダ３０の前後方向（すなわち板厚方向）両側において上下方向に延びるように形成された１対の壁面部５０Ａａ、５０Ｂａを備えているが、各壁面部５０Ａａ、５０Ｂａには陥没凹部５０Ａｃ、５０Ｂｃが形成されており、また、各壁面部５０Ａａ、５０Ｂａにおける陥没凹部５０Ａｃ、５０Ｂｃの部分には該陥没凹部５０Ａｃ、５０Ｂｃを貫通する上下１対の開口部５０Ａｄ、５０Ｂｄが形成されており、そして、ヨーク４４は各陥没凹部５０Ａｃ、５０Ｂｃに支持されており、また、マグネット４２はヨーク４４に磁気的に吸着された状態で各開口部５０Ａｄ、５０Ｂｄに収容されているので、次のような作用効果を得ることができる。 At that time, the case 50 includes a pair of wall surface portions 50Aa and 50Ba formed so as to extend in the vertical direction on both sides of the coil holder 30 in the front-rear direction (that is, the plate thickness direction). The recessed portions 50Ac and 50Bc are formed in the recessed portions 50Ac and 50Bc, and a pair of upper and lower openings 50Ad and 50Bd penetrating through the recessed portions 50Ac and 50Bc are formed in the wall portions 50Aa and 50Ba. Since the yoke 44 is supported by the recessed recesses 50Ac and 50Bc, and the magnet 42 is magnetically attracted to the yoke 44, it is accommodated in the openings 50Ad and 50Bd. The following effects can be obtained.
　すなわち、ケース５０における各壁面部５０Ａａ、５０Ｂａの一部を利用してマグネット４２およびヨーク４４を配置することができるので、ケース５０の内部空間において、導電コイル２２を収容するコイルホルダ３０の前後方向両側にマグネット４２およびヨーク４４を配置するための分厚いスペースを確保する必要をなくすことができ、これにより振動発電装置１０を薄型に構成することができる。 That is, since the magnet 42 and the yoke 44 can be arranged by using a part of each wall surface portion 50Aa, 50Ba in the case 50, the longitudinal direction of the coil holder 30 that houses the conductive coil 22 in the internal space of the case 50. It is possible to eliminate the need for securing a thick space for disposing the magnet 42 and the yoke 44 on both sides, whereby the vibration power generation apparatus 10 can be configured to be thin.
　このように本実施形態によれば、振動を利用して誘導起電力を生じさせるように構成された振動発電装置１０において、可動側ユニット２０がケース５０に収容された構成とした場合であっても、その薄型化を図ることができる。そしてこれにより振動発電装置１０を携帯に適したものとすることができる。 As described above, according to the present embodiment, in the vibration power generation apparatus 10 configured to generate the induced electromotive force using vibration, the movable side unit 20 is configured to be accommodated in the case 50. However, the thickness can be reduced. Thus, the vibration power generation apparatus 10 can be made portable.
　しかも本実施形態においては、各ヨーク４４に対して上下１対のマグネット４２を位置決めするための構造がケース５０に設けられているので、マグネットホルダ等の部品が不要となり、これにより振動発電装置１０の部品点数削減を図ることができる。 In addition, in the present embodiment, since the case 50 is provided with a structure for positioning the pair of upper and lower magnets 42 with respect to each yoke 44, parts such as a magnet holder are not necessary, and thus the vibration power generator 10. The number of parts can be reduced.
　また本実施形態においては、各壁面部５０Ａａ、５０Ｂａの陥没凹部５０Ａｃ、５０Ｂｃが、該陥没凹部５０Ａｃ、５０Ｂｃに支持されたヨーク４４の外表面が壁面部５０Ａａ、５０Ｂａの外表面と略面一となる深さで形成されているので、上下２組のマグネット４２および前後１対のヨーク４４で形成される磁気回路の部分の厚さに略等しい厚さまで振動発電装置１０を薄型化することができる。 In the present embodiment, the recessed portions 50Ac, 50Bc of the wall surface portions 50Aa, 50Ba are substantially flush with the outer surfaces of the wall surface portions 50Aa, 50Ba. Therefore, the vibration power generation apparatus 10 can be thinned to a thickness substantially equal to the thickness of the magnetic circuit formed by the two sets of upper and lower magnets 42 and the pair of front and rear yokes 44. .
　しかも本実施形態においては、各壁面部５０Ａａ、５０Ｂａの陥没凹部５０Ａｃ、５０Ｂｃが、該壁面部５０Ａａ、５０Ｂａの一般部分よりも薄肉に形成されているので、振動発電装置１０を薄型に維持した上で、各ヨーク４４の厚みを最大限に確保することができる。 In addition, in the present embodiment, the recessed recesses 50Ac and 50Bc of the wall surface portions 50Aa and 50Ba are formed thinner than the general portions of the wall surface portions 50Aa and 50Ba, so that the vibration power generator 10 is kept thin. Thus, the thickness of each yoke 44 can be ensured to the maximum.
　また本実施形態においては、コイルホルダ３０におけるコイル収容部３０ａの左右両側に位置する部分に、該コイルホルダ３０を前後方向に貫通した状態で上下方向に延びる１対のスリット３０ｂが形成されており、また、各ヨーク４４は、その側端フランジ部４４ａが各スリット３０ｂにそれぞれ挿入された状態で配置されているので、次のような作用効果を得ることができる。 In the present embodiment, a pair of slits 30b extending in the vertical direction is formed in portions of the coil holder 30 located on the left and right sides of the coil housing portion 30a so as to penetrate the coil holder 30 in the front-rear direction. In addition, since each yoke 44 is disposed with its side end flange portions 44a inserted into the respective slits 30b, the following operational effects can be obtained.
　すなわち、可動側ユニット２０が振動する際、コイルホルダ３０が所期の姿勢から大きく傾斜してしまうのを、各ヨーク４４とスリット３０ｂとの係合作用によって未然に防止することが容易に可能となり、これにより発電効率の低下を効果的に抑制することができる。 That is, when the movable side unit 20 vibrates, it is possible to easily prevent the coil holder 30 from being largely inclined from the intended posture by the engaging action of each yoke 44 and the slit 30b. As a result, a decrease in power generation efficiency can be effectively suppressed.
　さらに本実施形態においては、コイルホルダ３０における１対のスリット３０ｂの左右両側に位置する部分に、上下方向に延びる１対の板状の錘３４が取り付けられているので、振動発電装置１０を薄型に維持した上で、その共振周波数の調整を図ることが容易に可能となる。しかも、各錘３４は上下２組のマグネット４２および前後１対のヨーク４４で形成される磁気回路の部分から外れた位置に配置されているので、可動側ユニット２０が振動する際に電磁ブレーキ作用によって発電量が低下してしまうのを未然に防止することができる。 Furthermore, in the present embodiment, the pair of plate-like weights 34 extending in the vertical direction are attached to the portions of the coil holder 30 located on the left and right sides of the pair of slits 30b. Therefore, it is possible to easily adjust the resonance frequency. Moreover, since each weight 34 is disposed at a position away from the magnetic circuit portion formed by the upper and lower two sets of magnets 42 and the pair of front and rear yokes 44, the electromagnetic brake action is applied when the movable unit 20 vibrates. Therefore, it is possible to prevent the power generation amount from being lowered.
　その際、各錘３４は金属製であって、その側端面３４ａを各スリット３０ｂに突出させた状態で配置されているので、可動側ユニット２０が振動したときに固定側ユニット４０と接触したとしても、その接触は錘３４とヨーク４４との金属同士で行われることとなり、したがって摩擦抵抗を小さく抑えることができ、これにより振動発電装置１０の発電効率を高めることができる。 At this time, since each weight 34 is made of metal and is disposed in a state where its side end face 34a protrudes into each slit 30b, it is assumed that the movable side unit 20 comes into contact with the fixed side unit 40 when it vibrates. However, the contact is made between the metal of the weight 34 and the yoke 44, so that the frictional resistance can be kept small, and thereby the power generation efficiency of the vibration power generator 10 can be increased.
　また本実施形態においては、コイルホルダ３０のコイル収容部３０ａが、コイルホルダ３０を前後方向に貫通する貫通孔として形成されており、このコイル収容部３０ａを前後方向両側から塞ぐ１対のフィルム３２がコイルホルダ３０に貼付されているので、コイルホルダ３０の板厚を最小限に抑えた上で導電コイル２２の保持を行うことができる。 Moreover, in this embodiment, the coil accommodating part 30a of the coil holder 30 is formed as a through-hole penetrating the coil holder 30 in the front-rear direction, and a pair of films 32 that closes the coil accommodating part 30a from both sides in the front-rear direction. Is attached to the coil holder 30, so that the conductive coil 22 can be held while the plate thickness of the coil holder 30 is minimized.
　さらに本実施形態においては、可動側ユニット２０が上下方向に弾性変形可能な１対の金属バネ６０を介して固定側ユニット４０に支持されており、これら１対の金属バネ６０の各々に対して、導電コイル２２から延びる１対のコイル端末２２ａの各々が電気的に接続されているので、可動側ユニット２０の振動によって各コイル端末２２ａが撓んで連続的な曲げ応力が発生してしまうのを未然に防止することができる。そしてこれにより、導電コイル２２が不用意に断線してしまわないようにすることができるので、振動発電装置１０の信頼性を高めることができる。 Furthermore, in the present embodiment, the movable side unit 20 is supported by the fixed side unit 40 via a pair of metal springs 60 that can be elastically deformed in the vertical direction, and each of the pair of metal springs 60 is supported. Since each of the pair of coil terminals 22a extending from the conductive coil 22 is electrically connected, each coil terminal 22a is bent by the vibration of the movable unit 20, and a continuous bending stress is generated. It can be prevented in advance. As a result, the conductive coil 22 can be prevented from being inadvertently disconnected, so that the reliability of the vibration power generator 10 can be improved.
　その際、本実施形態においては、コイルホルダ３０に左右方向（すなわち所要方向と略直交する方向）に延びる第１基板６２が取り付けられるとともに、ケース５０に第１基板６２と略平行に延びる第２基板６４が取り付けられており、そして各金属バネ６０は、第１基板６２に下端部６０ａ（すなわち一端部）が係止されるとともに第２基板６４に上端部６０ｂ（すなわち他端部）が係止されたコイルバネで構成されており、これら各金属バネ６０に対する各コイル端末２２ａの電気的な接続が第１基板６２を介して行われているので、次のような作用効果を得ることができる。 At this time, in the present embodiment, a first substrate 62 extending in the left-right direction (that is, a direction substantially orthogonal to the required direction) is attached to the coil holder 30, and a second extending substantially parallel to the first substrate 62 to the case 50. A substrate 64 is attached, and each metal spring 60 has a lower end portion 60a (ie, one end portion) locked to the first substrate 62 and an upper end portion 60b (ie, the other end portion) engaged with the second substrate 64. Since each coil terminal 22a is electrically connected to each of the metal springs 60 via the first substrate 62, the following effects can be obtained. .
　すなわち、各コイル端末２２ａの引回し形状を単純化することができるので、各コイル端末２２ａと各金属バネ６０との電気的な接続を容易に行うことができる。また、第２基板６４の任意の位置において配線コード５４の端部（すなわち外部端子）との電気的な接続を行うことができるので、各金属バネ６０と配線コード５４との電気的な接続を容易に行うことができる。 That is, since the routing shape of each coil terminal 22a can be simplified, the electrical connection between each coil terminal 22a and each metal spring 60 can be easily performed. In addition, since it is possible to make an electrical connection with an end portion (that is, an external terminal) of the wiring cord 54 at an arbitrary position on the second substrate 64, the electrical connection between each metal spring 60 and the wiring cord 54 can be established. It can be done easily.
　上記実施形態においては、前側ハーフ５０Ａと後側ハーフ５０Ｂとの組付けが、後側ハーフ５０Ｂの外周フランジ部５０Ｂｂの四隅に形成されたピン５０Ｂｉを前側ハーフ５０Ａの外周フランジ部５０Ａｂの四隅に形成された圧入孔に圧入することによって行われるものとして説明したが、これに代えてあるいはこれに加えて、前側および後側ハーフ５０Ａ、５０Ｂの外周フランジ部５０Ａｂ、５０Ｂｂ相互間において溶着や接着が行われる構成とすることも可能である。 In the above embodiment, the assembly of the front half 50A and the rear half 50B is to form the pins 50Bi formed at the four corners of the outer peripheral flange portion 50Bb of the rear half 50B at the four corners of the outer peripheral flange portion 50Ab of the front half 50A. However, instead of or in addition to this, welding and adhesion are performed between the outer peripheral flange portions 50Ab and 50Bb of the front and rear halves 50A and 50B. It is also possible to adopt a configuration.
　上記実施形態においては、第１基板６２の各導電パターン６２Ｂを各金属バネ６０の下端部６０ａに当接させるとともに第２基板６４の各導電パターン６４Ｂを各金属バネ６０の上端部６０ｂに当接させることにより、各導電パターン６２Ｂ、６４Ｂと各金属バネ６０とを電気的に接続する構成となっているが、その当接部分において両者をハンダ付けすることにより、電気的な接続がより確実に行われる構成とすることも可能である。 In the above embodiment, each conductive pattern 62B of the first substrate 62 is brought into contact with the lower end portion 60a of each metal spring 60, and each conductive pattern 64B of the second substrate 64 is brought into contact with the upper end portion 60b of each metal spring 60. By doing so, each conductive pattern 62B, 64B and each metal spring 60 are configured to be electrically connected. However, by soldering the two at the contact portion, the electrical connection is more reliably performed. It is also possible to adopt a configuration that is performed.
　上記実施形態においては、１対の金属バネ６０が、可動側ユニット２０をその左右両端部において固定側ユニット４０に吊り支持するように配置された１対の引張コイルバネで構成されているものとして説明したが、これ以外の構成を採用することも可能である。例えば、可動側ユニットの上下両側に金属バネとしての板バネを配置して、可動側ユニットを固定側ユニットに対して上下方向に振動させる構成や、可動側ユニットの左右両側に金属バネを配置して、可動側ユニットを固定側ユニットに対して左右方向に振動させる構成等を採用することも可能である。 In the above-described embodiment, the pair of metal springs 60 are described as being composed of a pair of tension coil springs arranged so as to suspend and support the movable side unit 20 at the left and right ends thereof on the fixed side unit 40. However, other configurations can be employed. For example, plate springs as metal springs are arranged on both the upper and lower sides of the movable unit, and the movable unit is vibrated in the vertical direction with respect to the fixed unit, or metal springs are arranged on both the left and right sides of the movable unit. Thus, it is possible to adopt a configuration in which the movable unit vibrates in the left-right direction with respect to the fixed unit.
　上記実施形態においては、各ヨーク４４の一側端部に形成された側端フランジ部４４ａが各スリット５０Ａｅ、５０Ｂｅに挿通されているものとして説明したが、いずれか一方のヨーク４４の両側端部に側端フランジ部４４ａが形成された構成とした上で、各側端フランジ部４４ａが各スリット５０Ａｅ、５０Ｂｅに挿通された構成を採用することも可能である。 In the embodiment described above, the side end flange portion 44 a formed at one end portion of each yoke 44 has been described as being inserted into the slits 50 </ b> Ae and 50 </ b> Be, but both end portions of either one of the yokes 44 are described. It is also possible to adopt a configuration in which the side end flange portions 44a are inserted into the slits 50Ae and 50Be after the side end flange portions 44a are formed.
　次に、上記実施形態の変形例について説明する。 Next, a modification of the above embodiment will be described.
　図８は、本変形例に係る振動発電装置１１０の要部を示す、図３と同様の図である。 FIG. 8 is a view similar to FIG. 3, showing the main part of the vibration power generation apparatus 110 according to this modification.
　同図に示すように、この振動発電装置１１０の基本的な構成は上記実施形態の場合と同様であるが、上下１対のマグネット４２が後側ハーフ１５０Ｂにのみ配置されている点で上記実施形態の場合と異なっている。 As shown in the figure, the basic configuration of the vibration power generator 110 is the same as that of the above embodiment, but the above embodiment is implemented in that the upper and lower pairs of magnets 42 are disposed only on the rear half 150B. It is different from the case of form.
　すなわち、本変形例においても、前側および後側ハーフ１５０Ａ、１５０Ｂの壁面部１５０Ａａ、１５０Ｂａに陥没凹部１５０Ａｃ、１５０Ｂｃが形成されており、ヨーク１４４は各陥没凹部１５０Ａｃ、１５０Ｂｃにそれぞれ支持されている。 That is, also in the present modification, the recessed portions 150Ac and 150Bc are formed in the wall surface portions 150Aa and 150Ba of the front and rear halves 150A and 150B, and the yoke 144 is supported by the recessed portions 150Ac and 150Bc, respectively.
　しかしながら、本変形例においては、後側ハーフ１５０Ｂの陥没凹部１５０Ｂｃにのみ上下１対の開口部１５０Ｂｄが形成されており、前側ハーフ１５０Ａにはこのような開口部は形成されていない。そして、後側ハーフ１５０Ｂにおいては、上下１対のマグネット４２がヨーク１４４に磁気的に吸着された状態で上下１対の開口部１５０Ｂｄに収容されているが、前側ハーフ１５０Ａにはこのようなマグネットは存在しない。 However, in this modification, a pair of upper and lower openings 150Bd is formed only in the recessed recess 150Bc of the rear half 150B, and such an opening is not formed in the front half 150A. In the rear half 150B, the pair of upper and lower magnets 42 are accommodated in the pair of upper and lower openings 150Bd while being magnetically attracted to the yoke 144. Does not exist.
　本変形例においても、各マグネット４２は、その表面が陥没凹部１５０Ｂｃの内表面から僅かに突出した状態で、コイルホルダ３０の後面に貼付されたフィルム３２と僅かな間隔をおいて配置されている。 Also in this modification, each magnet 42 is arranged at a slight interval from the film 32 attached to the rear surface of the coil holder 30 with its surface slightly protruding from the inner surface of the depressed recess 150Bc. .
　一方、前側ハーフ１５０Ａには、このようなマグネットは存在しないので、マグネット４２の陥没凹部１５０Ｂｃからの突出量分だけ、その壁面部１５０Ａａは全体的に上記実施形態の場合よりも後方側へ変位している。そしてこれにより、前側ハーフ１５０Ａの陥没凹部１５０Ａｃとコイルホルダ３０の前面に貼付されたフィルム３２との間隔が、各マグネット４２の表面とコイルホルダ３０の後面に貼付されたフィルム３２との間隔と同じ値になるようにしている。 On the other hand, since such a magnet does not exist in the front half 150A, the wall surface portion 150Aa is displaced rearward as compared with the above embodiment as a whole by the amount of protrusion of the magnet 42 from the recessed recess 150Bc. ing. As a result, the distance between the recessed recess 150Ac of the front half 150A and the film 32 affixed to the front surface of the coil holder 30 is the same as the distance between the surface of each magnet 42 and the film 32 affixed to the rear surface of the coil holder 30. Value.
　なお本変形例においては、可動側ユニット１２０のフレーム部材１３６が、マグネット４２の上記突出量分だけ上記実施形態の場合よりも薄肉に形成されており、また、各ヨーク１４４の側端フランジ部１４４ａが、マグネット４２の上記突出量分だけ上記実施形態の場合よりも短尺で形成されている。 In this modification, the frame member 136 of the movable side unit 120 is formed thinner than the case of the above embodiment by the amount of protrusion of the magnet 42, and the side end flange portion 144a of each yoke 144 is formed. However, it is formed shorter than the case of the above-mentioned embodiment by the amount of protrusion of the magnet 42.
　本変形例の構成を採用することにより、マグネット４２の上記突出量分だけ、上記実施形態の場合よりも振動発電装置１１０のさらなる薄型化を図ることができる。 By adopting the configuration of this modified example, the vibration power generator 110 can be further reduced in thickness by the amount of protrusion of the magnet 42 than in the case of the above embodiment.
　また、本変形例の構成を採用した場合においても、上下１対のマグネット４２と前後１対のヨーク１４４とで磁気回路が形成されるようにすることができる。 Further, even when the configuration of this modification is adopted, a magnetic circuit can be formed by the upper and lower pair of magnets 42 and the front and rear pair of yokes 144.
　なお、上記実施形態およびその変形例において諸元として示した数値は一例にすぎず、これらを適宜異なる値に設定してもよいことはもちろんである。 It should be noted that the numerical values shown as specifications in the above-described embodiment and its modifications are merely examples, and it goes without saying that these may be set to different values as appropriate.
　また、本願発明は、上記実施形態およびその変形例に記載された構成に限定されるものではなく、これ以外の種々の変更を加えた構成が採用可能である。 Further, the present invention is not limited to the configurations described in the above embodiment and its modifications, and configurations with various other changes can be adopted.
　１０、１１０　振動発電装置
　２０、１２０　可動側ユニット
　２２　導電コイル、２２ａ　コイル端末
　３０　コイルホルダ、３０ａ　コイル収容部、３０ｂ　スリット
　３０ｃ　位置決めピン、３０ｄ　係止ピン、３０ｅ　薄肉部
　３２　フィルム
　３４　錘、３４ａ　側端面、３４ｂ　挿通孔
　３６、１３６　フレーム部材
　３６ａ、３６ｂ　圧入孔
　４０　固定側ユニット
　４２　マグネット
　４４、１４４　ヨーク
　４４ａ、１４４ａ　側端フランジ部
　５０　ケース
　５０Ａ、１５０Ａ　前側ハーフ
　５０Ｂ、１５０Ｂ　後側ハーフ
　５０Ａａ、５０Ｂａ、１５０Ａａ、１５０Ｂａ　壁面部
　５０Ａｂ、５０Ｂｂ　外周フランジ部
　５０Ａｃ、５０Ｂｃ、１５０Ａｃ、１５０Ｂｃ　陥没凹部
　５０Ａｄ、５０Ｂｄ、１５０Ｂｄ　開口部
　５０Ａｅ、５０Ｂｅ　スリット
　５０Ａｈ　切欠き部
　５０Ｂｆ　リブ
　５０Ｂｇ　係止ピン
　５０Ｂｉ　位置決めピン
　５２　制御ユニット
　５２Ａ　配線基板
　５２Ｂ　蓄電制御回路
　５２Ｃ　発信制御回路
　５４　配線コード
　６０　金属バネ、６０ａ　下端部、６０ｂ　上端部
　６２　第１基板
　６２Ａ、６４Ａ　絶縁板
　６２Ｂ、６４Ｂ　導電パターン
　６２ａ、６４ａ　貫通孔
　６４　第２基板 DESCRIPTION OF SYMBOLS 10, 110 Vibration power generator 20, 120 Movable side unit 22 Conductive coil, 22a Coil terminal 30 Coil holder, 30a Coil accommodating part, 30b Slit 30c Positioning pin, 30d Locking pin, 30e Thin part 32 Film 34 Weight, 34a Side end surface 34b Insertion hole 36, 136 Frame member 36a, 36b Press-fit hole 40 Fixed side unit 42 Magnet 44, 144 Yoke 44a, 144a Side end flange 50 Case 50A, 150A Front half 50B, 150B Rear half 50Aa, 50Ba, 150Aa, 150Ba Wall surface part 50Ab, 50Bb Outer peripheral flange part 50Ac, 50Bc, 150Ac, 150Bc Recessed recessed part 50Ad, 50Bd, 150Bd Opening part 50Ae, 50Be Slit 50Ah Notch part 50Bf 50Bg Locking pin 50Bi Positioning pin 52 Control unit 52A Wiring board 52B Power storage control circuit 52C Transmission control circuit 54 Wiring cord 60 Metal spring, 60a Lower end, 60b Upper end 62 First board 62A, 64A Insulating board 62B, 64B Conductive pattern 62a, 64a Through hole 64 Second substrate

Claims (8)

  1. 　導電コイルを備えた可動側ユニットが、マグネットおよびヨークを備えた固定側ユニットに対して所要方向に振動することにより、上記導電コイルに誘導起電力を生じさせるように構成された振動発電装置において、
    　上記可動側ユニットは、上記所要方向に延びるように配置された板状のコイルホルダを備えており、
    　上記導電コイルは、上記コイルホルダに形成されたコイル収容部に収容されており、
    　上記固定側ユニットは、上記可動側ユニットを収容するケースを備えており、
    　上記ケースは、上記コイルホルダの板厚方向両側において上記所要方向に延びるように形成された１対の壁面部を備えており、
    　上記各壁面部に陥没凹部が形成されており、
    　上記１対の壁面部のうちの少なくとも一方における上記陥没凹部の部分に、該陥没凹部を貫通する少なくとも１つの開口部が形成されており、
    　上記ヨークは、上記各陥没凹部に支持されており、
    　上記マグネットは、上記ヨークに磁気的に吸着された状態で上記各開口部に収容されている、ことを特徴とする振動発電装置。     In the vibration power generator configured to generate an induced electromotive force in the conductive coil by causing the movable side unit including the conductive coil to vibrate in a required direction with respect to the fixed side unit including the magnet and the yoke,
    The movable side unit includes a plate-shaped coil holder arranged to extend in the required direction,
    The conductive coil is housed in a coil housing portion formed in the coil holder,
    The fixed side unit includes a case for accommodating the movable side unit,
    The case includes a pair of wall surfaces formed to extend in the required direction on both sides of the coil holder in the plate thickness direction,
    Recessed depressions are formed in each of the wall surfaces,
    At least one opening penetrating through the depressed recess is formed in the depressed recess in at least one of the pair of wall surfaces,
    The yoke is supported by the depressed recesses,
    The vibration power generator according to claim 1, wherein the magnet is housed in each of the openings while being magnetically attracted to the yoke.
  2. 　上記陥没凹部は、該陥没凹部に支持された上記ヨークの外表面が上記壁面部の外表面と略面一となる深さで形成されている、ことを特徴とする請求項１記載の振動発電装置。 2. The vibration power generation according to claim 1, wherein the depressed recess is formed with a depth such that an outer surface of the yoke supported by the depressed recess is substantially flush with an outer surface of the wall surface portion. apparatus.
  3. 　上記コイルホルダにおける上記コイル収容部の両側に位置する部分に、該コイルホルダを板厚方向に貫通した状態で上記所要方向に延びる１対のスリットが形成されており、
    　上記１対のヨークのうちの少なくとも一方は、該ヨークの一部が上記スリットに挿入された状態で配置されている、ことを特徴とする請求項１または２記載の振動発電装置。     A pair of slits extending in the required direction in a state of penetrating the coil holder in the plate thickness direction are formed in portions located on both sides of the coil housing portion in the coil holder,
    3. The vibration power generator according to claim 1, wherein at least one of the pair of yokes is disposed in a state in which a part of the yoke is inserted into the slit.
  4. 　上記コイルホルダにおける上記１対のスリットの両側に位置する部分に、上記所要方向に延びる１対の板状の錘が取り付けられている、ことを特徴とする請求項３記載の振動発電装置。 The vibration power generator according to claim 3, wherein a pair of plate-like weights extending in the required direction are attached to portions of the coil holder located on both sides of the pair of slits.
  5. 　上記各錘は、金属製であって、該錘の側端面を上記各スリットに突出させた状態で配置されている、ことを特徴とする請求項４記載の振動発電装置。 5. The vibration power generator according to claim 4, wherein each of the weights is made of metal and is disposed in a state in which a side end surface of the weight is protruded from each of the slits.
  6. 　上記コイル収容部は、上記コイルホルダを板厚方向に貫通する貫通孔として形成されており、
    　上記コイルホルダに、上記コイル収容部を板厚方向両側から塞ぐ１対のフィルムが貼付されている、ことを特徴とする請求項１～５いずれか記載の振動発電装置。     The coil housing portion is formed as a through-hole penetrating the coil holder in the plate thickness direction,
    The vibration power generator according to any one of claims 1 to 5, wherein a pair of films for closing the coil housing portion from both sides in the plate thickness direction are attached to the coil holder.
  7. 　上記可動側ユニットは、上記所要方向に弾性変形可能な１対の金属バネを介して上記固定側ユニットに支持されており、
    　上記１対の金属バネの各々に対して、上記導電コイルから延びる１対のコイル端末の各々が電気的に接続されている、ことを特徴とする請求項１～６いずれか記載の振動発電装置。     The movable side unit is supported by the fixed side unit via a pair of metal springs that can be elastically deformed in the required direction,
    The vibration power generator according to any one of claims 1 to 6, wherein each of the pair of coil terminals extending from the conductive coil is electrically connected to each of the pair of metal springs. .
  8. 　上記コイルホルダに、上記所要方向と略直交する方向に延びる第１基板が取り付けられており、
    　上記ケースに、上記第１基板と略平行に延びる第２基板が取り付けられており、
    　上記各金属バネは、上記第１基板に一端部が係止されるとともに上記第２基板に他端部が係止されたコイルバネで構成されており、
    　上記各金属バネに対する上記各コイル端末の電気的な接続が上記第１基板を介して行われている、ことを特徴とする請求項７記載の振動発電装置。     A first substrate extending in a direction substantially orthogonal to the required direction is attached to the coil holder,
    A second substrate extending substantially parallel to the first substrate is attached to the case,
    Each of the metal springs is composed of a coil spring having one end locked to the first substrate and the other end locked to the second substrate.
    The vibration power generator according to claim 7, wherein the coil terminals are electrically connected to the metal springs via the first substrate.
PCT/JP2017/012799 2016-06-02 2017-03-29 Vibration powered generator device WO2017208602A1 (en)

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