TW201404008A - Energy conversion system - Google Patents

Abstract

An energy conversion device includes a magnet block equipped with a magnet and a coil block equipped with a coil, and the magnet block and the coil block are arranged to face each other. The energy conversion device includes a moving part equipped with the magnet block, a support, and elastic bodies connecting the moving part and the support. The elastic bodies are provided on both sides of the moving part in a prescribed direction. The energy conversion device comprises: an input mechanism for displacing the moving part along the prescribed direction; a first magnetic material section connected to the moving part; and a second magnetic material section connected to the input mechanism. A magnetic force generated between the first magnetic material section and the second magnetic material section can displace the moving part.

Description

Energy conversion device

The present invention relates to an energy conversion device.

In recent years, regarding an energy conversion device, there has been proposed an energy conversion device that converts kinetic energy into electrical energy by electromagnetic induction (Japanese Patent Laid-Open Publication No. 2009-11149: Patent Document 1, US Patent Application Publication No. 2011/0063057: Patent Document 2).

Patent Document 1 describes a power generator 100 having the structure shown in FIGS. 34 to 36 in the energy conversion device.

The power generating device 100 includes a support 110 in which the housing portion 110a is provided, and a permanent magnet 120 and a coil spring 130 disposed in the housing portion 110a.

The support 110 is composed of three printed substrates 111 to 113. In the support 110, the storage portion 110a is formed by the rectangular opening portion 112a of the printed substrate 112 disposed between the two printed substrates 111 and 113.

Here, in the power generating device 100, planar coils 114a and 114b are formed on the bottom surface of the printed substrate 113. As shown in FIG. 36, the planar coils 114a and 114b are arranged in a checkered pattern as viewed from the bottom surface side. The planar coils 114a and 114b are each formed in a spiral shape. Further, the planar coils 114a and 114b are formed in such a manner that the winding directions are opposite to each other.

Further, in the printed circuit board 113, an opening portion 113a is formed in a region corresponding to a central portion of the planar coils 114a and 114b. A core 115 made of a material such as Fe or Co is embedded in the opening 113a. Further, the core 115 is formed to protrude from the bottom surface of the printed board 113, and is disposed at a central portion of the planar coils 114a and 114b.

As shown in FIGS. 34 and 35, the permanent magnet 120 is disposed inside the accommodating portion 110a so as to be movable in the direction of the arrow X1 (arrow X2 direction). Further, as shown in Fig. 35, the permanent magnet 120 is restricted in the direction of the arrow Y1 (arrow Y2 direction). Further, as shown in FIG. 34, the permanent magnet 120 is formed in a plate shape, and is disposed opposite to the planar coils 114a and 114b with a predetermined interval therebetween. Further, the permanent magnet 120 includes a portion (magnetic region) 120a whose magnetization direction is the arrow Z1 direction, and a portion 120b whose magnetization direction is the arrow Z2 direction, and constitutes a multipolar magnet. Therefore, in the vicinity of the printed substrate 113, a magnetic field represented by a magnetic line of weakness indicated by a broken line in Fig. 34 is formed. Further, as shown in FIG. 35, the portions 120a and 120b are arranged in a state of being adjacent to each other (checkered pattern) in plan view. Further, as shown in FIG. 34, when the permanent magnet 120 is disposed at the reference position, the portion 120a is disposed in a region corresponding to the planar coil 114a, and the portion 120b is disposed in a region corresponding to the planar coil 114b.

As shown in Figs. 34 and 35, the coil spring 130 is disposed between the side surface 112b of the opening portion 112a and the end portion 120c of the permanent magnet 120, and is disposed at the side surface 112c of the opening portion 112a and the end portion 120d of the permanent magnet 120. between. The pair of coil springs 130 have a function of pressing, and the permanent magnets 120 are disposed at a predetermined reference position with respect to the support 110 in the direction of the arrow X1 (arrow X2 direction).

In the power generator 100, since the coil spring 130 is pressed so that the permanent magnet 120 is placed at a predetermined reference position, the permanent magnet 120 can be easily made to face when an external force is applied to the power generating device 100. The support body 110 vibrates.

The power generating device 100 is provided with a circuit portion 116 (see FIG. 36) for controlling the induced electromotive force generated by the planar coils 114a and 114b while outputting it on the top surface of the printed substrate 113.

In the power generating device 100, when an external force is applied to the power generating device 100 to move the permanent magnet 120 in the direction of the arrow X1 with respect to the support 110, an induced current is generated in the planar coils 114a and 114b. The planar coil 114a generates an induced current in the direction of the arrow A as shown in Fig. 36 due to electromagnetic induction. The planar coil 114b generates an induced current in the direction of the arrow B as shown in Fig. 36 due to electromagnetic induction. Therefore, the circuit portion 116 can be supplied with an induced current in the C direction as shown in FIG.

Further, in the power generating device 100, when the permanent magnet 120 is moved in the direction of the arrow X2 with respect to the support 110, an induced current is generated in the planar coils 114a and 114b. The planar coil 114a generates an induced current in the direction of the arrow B due to electromagnetic induction. The planar coil 114b generates an induced current in the direction of the arrow A due to electromagnetic induction. Therefore, the circuit portion 116 can be supplied with an induced current in a direction opposite to the C direction.

Further, Patent Document 1 also discloses a power generating device 500 having a structure as shown in FIG. 37, in which planar coils 114a and 114b are formed on a printed substrate 113, and planar coils 514a and 514b are formed on the printed substrate 111. Then, Patent Document 1 describes that it is relatively easy to increase the amount of power generation according to the structure of the power generating device 500.

Further, Patent Document 2 describes a wireless switch including an electromagnetic induction type power generator.

Patent Document 2 describes a power generating device including a multi-pole magnet 202, a multilayer printed circuit board 206 including a conductor 204 that generates an induced current by electromagnetic induction, and a suspension piece 200, as shown in FIG. Suspension plate 200, in combination with four flexible portions 208, forms a spring-mass system configuration. In addition, the arrow 210 in FIG. 38 indicates the vibration direction of the suspension piece 200.

Further, Patent Document 2 describes a structure as shown in FIG. The configuration includes a substrate 1202, a verification mass 1208 that is floated from the substrate 1202 by two suspensions 1210, two suspensions 1210, and a rotating turntable 1200 that is fixed to the substrate 1202. In addition, the configuration further includes: a multi-blade cam 1204 that rotates when the rotary dial 1200 rotates; and a follower 1206 that is pushed by the multi-blade cam 1204. The follower 1206 is combined with the verification mass 1208. Suspension 1210 is at the central portion 1212 The follower 1206 and the verification mass 1208 are combined. Additionally, the end 1214 of the suspension 1210 is coupled to the substrate 1202. The multi-blade cam 1204 displaces the follower 1206 and actuates the proof mass 1208 after the displacement. Thereby, the configuration can be used to actuate the proof mass 1208 using the rotary dial 1200.

In the power generating device described in Patent Document 2, for example, instead of the suspension piece 200 and the four flexible portions 208, the verification mass 1208 and the two suspensions 1210 in the configuration of FIG. 39 are employed, and a rotary turntable is provided. 1200, multi-blade cam 1204, follower 1206. However, it is considered that in such power generating devices, since the multi-blade cam 1204 also applies force to the suspension 1210 in an unnecessary direction, it is difficult to improve the energy conversion efficiency.

Further, in the power generating device described in Patent Document 2, since the multi-blade cam 1204 applies force to the suspension 1210 in an unnecessary direction, the suspension 1210 is subjected to a large load, which in turn causes the suspension 1210 to be constructed. Damaged. In addition, in the power generator described in Patent Document 2, if the rotary dial 1200 is rotated to rotate the multi-blade cam 1204 in the direction of the arrow F1 in FIG. 40, in addition to the desired input direction (FIG. 40) In addition to the force of the arrow F2 in the middle, the force in a direction different from the above input direction (for example, the direction of the arrow F3 in Fig. 40) is applied.

Furthermore, in the power generator described in Patent Document 2, since the tip end portions of the blades of the multi-blade cam 1204 and the tip end portion of the follower 1206 are subjected to greater stress than other portions, The structure is deteriorated due to wear and the power generation performance is lowered.

In view of the above problems, it is an object of the present invention to provide an energy conversion device which can displace and actuate a movable portion and improve energy conversion efficiency and reliability.

The energy conversion device of the present invention comprises: a magnet block having a magnet; and a coil block having a coil; the magnet block and the coil block are oppositely disposed in a facing direction; and the magnet block and the coil are utilized The relative displacement of the block in a specified direction orthogonal to the opposite direction Electromagnetic induction converts kinetic energy into electrical energy; the energy conversion device includes: a movable portion including one of the magnet block and the coil block; a support portion; and an elastic portion connecting the movable portion and the support portion An input mechanism for displacing the movable portion along the predetermined direction; a first magnetic material portion connected to the movable portion; and a second magnetic material portion connected to the input mechanism; the energy conversion device is usable The magnetic force generated between the first magnetic material portion and the second magnetic material portion displaces the movable portion.

In the energy conversion device, the first magnetic material portion is preferably composed of a first magnetic material or a first magnetic material, and the second magnetic material portion is preferably composed of a second magnetic material or a second magnetic material.

In the energy conversion device, the direction of the magnetic force is preferably a direction in which the first magnetic material portion and the second magnetic material portion are attracted to each other.

In the energy conversion device, it is preferable that the support portion or the movable portion has a stopper structure that limits the displacement amount of the movable portion in the predetermined direction to a predetermined value.

In the energy conversion device, the support portion preferably has opposite end faces; the stop structure is preferably formed by both end faces of the support portion; the end faces preferably follow the movable portion in the specified direction. The distance in the direction orthogonal to the specified direction is gradually shortened; the movable portion preferably includes two inclined faces that can be in surface contact with the both end faces when the movable portion is displaced by the specified value in the specified direction. .

In the energy conversion device, the stop structure is preferably disposed on the same line as the input mechanism in the specified direction.

In the energy conversion device, the first magnetic material portion is preferably connected to the movable portion via a spring.

In the energy conversion device, the second magnetic material portion is preferably connected to the input mechanism via a spring.

In the energy conversion device, the support portion preferably includes a third magnetic material portion that is adsorbed by the second magnetic material portion at a position where the first magnetic material portion is adsorbed by the second magnetic material portion.

In the energy conversion device, it is preferable to provide a vibration in which the magnet block can vibrate in the specified direction. The movable block preferably includes: the movable portion having the magnet block; the support portion; and the elastic portion; the number of the coil blocks is preferably two; the two coil blocks Preferably, the first coil block facing the magnet block on the first surface side in the thickness direction of the vibration block and the second surface side in the thickness direction of the vibration block are opposed to the magnet block. Preferably, the energy conversion device includes: a first cap portion disposed on the first surface side of the vibrating block and holding the first coil block; and being disposed in the vibrating block The second cap portion of the second coil block is held on the second surface side; and a plurality of coupling members that penetrate the first cap portion, the vibration block, and the second cap portion; The bonding member preferably has electrical conductivity; the first wiring to which the first coil block is connected and the second wiring to which the second coil block is connected are preferably electrically connected to the bonding member.

In the energy conversion device, the vibration block preferably includes a plurality of through holes penetrating through the support portion in the thickness direction, and the first cap portion preferably includes a through hole penetrating in the thickness direction and each of the through holes a plurality of first holes in which the holes are respectively connected; and the second cap portion preferably includes a plurality of second holes penetrating in the thickness direction and communicating with the respective through holes; the bonding member is preferably inserted in the thickness The first hole, the through hole, and the second hole that overlap in the direction.

In the energy conversion device, each of the coils of the first coil block and the second coil block is preferably a wound coil.

In the energy conversion device, each of the coils of the first coil block and the second coil block is preferably a pattern coil.

In the energy conversion device, it is preferable that a spacer is provided on a surface of the first cap portion opposite to the one of the second cap portions on the side of the vibrating block; the pad is preferably connected to the first wire. The bonding member electrically connected to the second wiring is electrically connected.

In the energy conversion device, it is preferable that a DC circuit portion is disposed on a side opposite to the vibration block side of the first cap portion and the second cap portion; and the DC circuit portion is preferably formed. 1 wiring and a structure in which an alternating current output between two of the bonding members electrically connected to the second wiring is converted into a desired direct current output.

In the energy conversion device, the coupling member is preferably a bolt and includes a nut that is screwed to the front end portion of the bolt.

In the energy conversion device, the joining member is preferably a rivet, and the shaft end portion of the rivet is plastically deformed.

1‧‧‧ energy conversion device

2‧‧‧ Magnet

3‧‧‧Magnetic block

4‧‧‧ coil block

4A‧‧‧1st coil block

4B‧‧‧2nd coil block

4a‧‧‧ coil

4b‧‧‧ core material

5‧‧‧ Input institutions

6‧‧‧2nd Magnetic Materials Division

7‧‧‧1st Magnetic Materials Division

8‧‧‧Installation substrate

9‧‧‧Combined components

10‧‧‧Substrate

11‧‧‧Vibration block

11a‧‧‧through hole

12‧‧‧movable department

12c‧‧‧ sloped surface

13‧‧‧ movable body

13b‧‧‧dun

14‧‧‧Support Department

14b‧‧‧1st recess

14c‧‧‧stop structure

14e‧‧‧ end face

15‧‧‧ Elastomers

16‧‧‧ Spring

18‧‧‧Protruding

18a‧‧‧stop structure

18b‧‧‧ front end

18e‧‧‧ sloped surface

19‧‧‧3rd Magnetic Materials Division

21‧‧‧1st cap

21a‧‧‧through holes

21b‧‧‧through hole

21c‧‧‧through hole

31‧‧‧2nd cap

31a‧‧‧through hole

31b‧‧‧through hole

31c‧‧‧through hole

41‧‧‧1st spacer

41a‧‧‧through hole

41b‧‧‧2nd recess

42‧‧‧2nd spacer

42a‧‧‧through hole

42b‧‧‧2nd recess

51‧‧‧Rotary axis

52‧‧‧Rotating body

53‧‧‧Operation Department

54‧‧‧Protruding

55‧‧‧Return spring

55a‧‧‧End

55b‧‧‧End

56‧‧‧Return spring

57‧‧‧ Fixed Department

60‧‧‧ cushion

61‧‧‧1st wiring

62‧‧‧2nd wiring

63‧‧‧3rd wiring

70‧‧‧ Circuit Department

71‧‧‧Rectifying and smoothing circuit

72‧‧‧DC/DC converter

73‧‧‧Directional Circuits Division

73a‧‧‧ circuit board

73b‧‧‧constituting parts

73c‧‧‧ conductor layer

73d‧‧‧Conductor layer

73f‧‧‧ opening

74‧‧‧Control Department

75‧‧‧RF circuit

76‧‧‧ load

77‧‧‧Antenna

80‧‧‧ joints

91‧‧‧ bolt

91a‧‧‧ head

91b‧‧‧ front end

92‧‧‧ nuts

93‧‧‧Washers

94‧‧‧ Rivets

94a‧‧‧ head

94b‧‧‧Deformation Department

95‧‧ ‧ sales

96‧‧‧Retaining components

98‧‧‧Washers

100‧‧‧Power generator

110‧‧‧Support

110a‧‧‧Storage Department

111‧‧‧Printing substrate

112‧‧‧Printed substrate

112a‧‧‧ openings

112b‧‧‧ side

112c‧‧‧ side

113‧‧‧Printed substrate

113a‧‧‧ Opening

114a‧‧‧planar coil

114b‧‧‧planar coil

115‧‧‧Magnetic core

116‧‧‧Development Department

120‧‧‧ permanent magnet

Section 120a‧‧‧

Section 120b‧‧‧

120c‧‧‧ end

120d‧‧‧End

130‧‧‧ coil spring

200‧‧‧suspension

202‧‧‧Multipole magnet

204‧‧‧Conductor

206‧‧‧Multilayer printed circuit board

208‧‧‧Flexible part

210‧‧‧Vibration direction

500‧‧‧Power generator

514a‧‧‧planar coil

514b‧‧‧planar coil

1200‧‧‧Rotating turntable

1202‧‧‧Substrate

1204‧‧‧Multi-blade cam

1206‧‧‧ Followers

1208‧‧‧Verification quality block

1210‧‧‧suspension

1212‧‧‧ central part

1214‧‧‧End

F1, F2, F3‧‧‧ directions

D1~D5, D11, D12‧‧‧ diode

C4, C5, C11, C12‧‧‧ capacitors

C _IN ‧‧‧1st capacitor

Boost inductor L ₁ ‧‧‧

SW‧‧‧ terminal

Terminal V _IN ‧‧‧

V _OUT ‧‧‧ terminals

EN‧‧‧ terminals

VFB‧‧‧ terminal

GND‧‧‧ terminal

IC ₁ ‧‧‧ integrated circuit

C _OUT ‧‧‧2nd capacitor

C1‧‧‧3rd capacitor

L1‧‧‧Boost inductor

L‧‧‧ terminal

VIN‧‧‧ terminal

VOUT‧‧‧ terminal

C2‧‧‧4th capacitor

IC ₂ ‧‧‧ integrated circuit

H1‧‧‧Width size

EH‧‧‧Vibration power generation unit

W1‧‧‧ thickness size

W3‧‧‧ interval

X11‧‧‧ length

Y11‧‧‧ length

X1, X2, Y1, Y2, Z1, Z2‧‧‧ direction

A, B, C‧‧‧ directions

Fig. 1A is a schematic cross-sectional view showing a vibration power generator of an energy conversion device according to a first embodiment. Fig. 1B is a schematic plan view showing a main part of an energy conversion device according to a first embodiment.

Fig. 2 is an enlarged view of a main part of a vibration power generating device of an energy conversion device according to a first embodiment.

Fig. 3 is a schematic perspective view of a vibration power generator of an energy conversion device according to a first embodiment.

Fig. 4 is a schematic exploded perspective view showing a vibration power generator of the energy conversion device according to the first embodiment.

Fig. 5 is an explanatory diagram showing a configuration example of an input mechanism of the energy conversion device of the first embodiment.

Fig. 6 is an explanatory diagram showing another configuration example of an input mechanism of the energy conversion device of the first embodiment.

7A to 7D are explanatory views of the operation of the energy conversion device of the first embodiment.

Fig. 8A is a schematic plan view showing a main part of a first modified embodiment of the energy conversion device according to the first embodiment. Fig. 8B is an operation explanatory diagram of a first modified embodiment of the energy conversion device according to the first embodiment.

Fig. 9 is a schematic plan view showing a main part of a second modified embodiment of the energy conversion device according to the first embodiment.

Fig. 10 is a schematic plan view showing a main part of a third modified embodiment of the energy conversion device according to the first embodiment.

Fig. 11 is a schematic plan view showing a main part of a fourth modified embodiment of the energy conversion device according to the first embodiment.

Fig. 12 is a schematic plan view showing a main part of a fifth modified embodiment of the energy conversion device according to the first embodiment.

Fig. 13A is a schematic cross-sectional view showing an energy conversion device of a second embodiment. Fig. 13B is another schematic cross-sectional view of the energy conversion device of the second embodiment.

Fig. 14 is a schematic exploded perspective view showing the energy conversion device of the second embodiment.

Fig. 15 is a schematic perspective view of an energy conversion device according to a second embodiment.

Fig. 16 is a schematic plan view showing a vibration block of the energy conversion device of the second embodiment.

Fig. 17 is a circuit block diagram of the circuit portion of the second embodiment.

Fig. 18 is a circuit diagram showing a rectifying and smoothing circuit of the direct current circuit unit of the second embodiment.

Fig. 19 is a view showing another example of the circuit of the rectifying and smoothing circuit of the direct current circuit unit of the second embodiment.

Fig. 20 is a view showing another example of the circuit of the rectifying and smoothing circuit of the direct current circuit unit of the second embodiment.

Fig. 21 is a circuit diagram showing a DC/DC converter of the DC circuit portion of the second embodiment.

Fig. 22 is a view showing another example of the circuit of the DC/DC converter of the DC circuit portion of the second embodiment.

Fig. 23 is a schematic cross-sectional view showing a first modified embodiment of the energy conversion device according to the second embodiment.

Fig. 24 is a schematic exploded perspective view showing a first modified embodiment of the energy conversion device according to the second embodiment.

Fig. 25A is a schematic cross-sectional view showing a second modified embodiment of the energy conversion device according to the second embodiment.

Fig. 25B is another schematic cross-sectional view showing an energy conversion device according to a second modified embodiment of the second embodiment.

Fig. 26A is a schematic cross-sectional view showing a third modified embodiment of the energy conversion device according to the second embodiment.

Fig. 26B is another schematic cross-sectional view showing a third modified embodiment of the energy conversion device of the second embodiment.

Fig. 27A is a schematic cross-sectional view showing a fourth modified embodiment of the energy conversion device according to the second embodiment.

Fig. 27B is another schematic cross-sectional view showing a fourth modified embodiment of the energy conversion device of the second embodiment.

Fig. 28 is a schematic exploded perspective view showing a fourth modified embodiment of the energy conversion device according to the second embodiment.

Figure 29 is a schematic cross-sectional view showing a fifth modified embodiment of the energy conversion device of the second embodiment.

Fig. 30 is a schematic cross-sectional view showing a sixth modified embodiment of the energy conversion device of the second embodiment.

Figure 31 is a schematic cross-sectional view showing a sixth modified embodiment of the energy conversion device of the second embodiment.

Figure 32 is a schematic cross-sectional view showing a seventh modified embodiment of the energy conversion device of the second embodiment.

Figure 33 is a schematic cross-sectional view showing an energy conversion device of a third embodiment.

Fig. 34 is a cross-sectional view showing the structure of a power generating device of a conventional example.

Fig. 35 is a plan view for explaining the configuration of the power generating device shown in Fig. 34.

Figure 36 is a view for explaining the configuration of the power generating device shown in Figure 34.

Figure 37 is a cross-sectional view showing the configuration of a power generating device of another conventional example.

Fig. 38 is a schematic exploded perspective view showing another conventional power generating device.

Fig. 39 is an explanatory view showing a configuration of another conventional example in which a rotating mass is used to activate a verification mass.

Fig. 40 is an explanatory view showing the operation of a structure for operating a verification mass using a rotary dial according to another conventional example.

(Implementation 1)

Hereinafter, the energy conversion device 1 of the present embodiment will be described with reference to Figs. 1A, 1B, 2 to 6, and 7A to 7D.

The energy conversion device 1 includes a vibration power generation device (device body) EH.

The vibration power generator EH includes a magnet block 3 including a magnet 2, and a coil block 4 including a coil 4a, and the magnet block 3 and the coil block 4 are arranged to face each other in the opposing direction. The vibration power generator EH has a function of converting kinetic energy into electric energy by electromagnetic induction caused by the relative displacement of the magnet block 3 and the coil block 4 in a predetermined direction orthogonal to the opposite direction. Further, in the energy conversion device 1 of the present embodiment, the vertical direction of FIG. 1A is the above-described opposing direction, and the horizontal direction of FIG. 1A is the above-described designated direction.

The vibration power generating device EH includes a movable portion 12, a support portion 14, and an elastic body portion 15 that connects the movable portion 12 and the support portion 14. The support portion 14 supports the movable portion 12 via the elastic body portion 15. Thereby, in the vibration power generator EH, the movable portion 12 can vibrate in the above-described specified direction. The movable portion 12 is provided with the above-described magnet block 3. The vibration power generator EH is provided with an elastic body portion 15 on both sides of the movable portion 12 in the predetermined direction. The vibration power generator EH is an electromagnetic induction type vibration power generator that converts the kinetic energy of the movable portion 12 into electric energy.

Further, the energy conversion device 1 includes an input mechanism 5 for displacing the movable portion 12 in the predetermined direction. Further, the energy conversion device 1 includes a first magnetic material portion 7 connected to the movable portion 12, and a second magnetic material portion 6 connected to the input mechanism 5, and the first magnetic material portion 7 and the second magnetic material are used. The magnetic force generated between the material portions 6 can displace the movable portion 12. The first magnetic material portion 7 can be composed of either a first magnet or a first magnetic material. Further, the second magnetic material portion 6 may be composed of any of the second magnetic material and the second magnetic material.

The elastic portion 15 has a rigidity in the specified direction smaller than a rigidity in a direction orthogonal to the specified direction. Thereby, the energy conversion device 1 can unidirectionally change the vibration direction of the movable portion 12 in the predetermined direction. Therefore, in the energy conversion device 1, as shown in FIG. 1B, the vibration direction of the movable portion 12 is unidirectional in the predetermined direction, that is, in the left-right direction, and the vertical direction of the movable portion 12 or the thickness direction of the movable portion 12 can be suppressed. (Vibration in the direction orthogonal to the plane of the paper of Fig. 1B) vibration in the same direction. Therefore, the energy conversion device 1 can suppress the occurrence of unnecessary vibration components, and can further improve the energy conversion efficiency.

The energy conversion device 1 includes a vibration block 11 having the above-described movable portion 12, a support portion 14, and each elastic body portion 15. In the vibration block 11, when the orthogonal coordinates are set with the center of gravity of the movable portion 12 as the origin, the positive direction of the x-axis is determined along the predetermined direction, and when the vibration block 11 is viewed in plan, it is orthogonal to the specified direction. The direction of the y-axis determines the positive direction of the z-axis orthogonal to the specified direction along the thickness direction of the movable portion 12, so that the vibration direction of the movable portion 12 can be oriented in the positive and negative directions of the x-axis. The vibration component in the positive and negative directions of the y-axis or the positive and negative directions of the z-axis can be suppressed.

In addition, the vibration power generator EH includes the first cap portion 21 disposed on one surface (first surface) side in the thickness direction of the vibration block 11 and the other surface (second surface) in the thickness direction of the vibration block 11 The second cap portion 31 disposed on the side. The vibration power generating device EH holds the above-described coil block 4 in each of the first cap portion 21 and the second cap portion 31. In addition, the vibration power generator EH includes the first spacer 41 disposed between the first cap portion 21 and the vibration block 11 and the first spacer 41 disposed between the second cap portion 31 and the vibration block 11 2 spacer 42. The first spacer 41 and the second spacer 42 have a C-shape in plan view.

Each constituent element of the energy conversion device 1 will be described in detail below.

The vibration block 11 has a shape of a plan view of the support portion 14 in a C shape. Here, the vibration block 11 has Opposite end faces. Further, the movable block 13 is disposed inside the support portion 14 in the vibration block 11. The movable portion main body 13 is disposed to be spaced apart from the inner side surface of the support portion 14. Further, the vibrating block 11 is provided with the elastic body portion 15 on both sides of the movable portion main body 13 in the above-described specified direction. Further, the vibration block 11 has a frame shape in plan view of the movable portion main body 13, and a magnet block 3 is disposed inside the movable portion main body 13. The magnet block 3 is fixed to the movable portion body 13.

The inner circumference shape of the movable portion body 13 is a rectangle. The outer peripheral shape of the magnet block 3 is a rectangle slightly smaller than the inner peripheral shape of the movable portion main body 13. Regarding the method of fixing the magnet block 3 to the movable portion body 13, for example, a method of fixing by a bonding agent can be employed. At this time, a joint portion made of a bonding agent is interposed between the outer peripheral surface of the magnet block 3 and the inner side surface of the movable portion main body 13. The method of fixing the magnet block 3 to the movable portion main body 13 is not limited thereto. For example, a method of fixing the other member by pressing a gap between the magnet block 3 and the movable portion main body 13 may be employed. Further, the method of fixing the magnet block 3 to the movable portion main body 13 may be a method of fixing by bolts from the outer side surface side of the movable portion main body 13.

The outer peripheral shape of the movable portion main body 13 is an octagonal shape, but is not limited thereto. For example, other shapes such as a polygonal shape or a circular shape may be used.

Further, the movable portion 12 includes a protruding portion 18 that protrudes from the outer side surface of the movable portion main body 13 in the predetermined direction. The front end surface of the protruding portion 18 is connected to the first magnetic material portion 7 described above. The protruding portion 18 and the first magnetic material portion 7 are connected by a bonding agent. The planar shape of the protruding portion 18 is a rectangular shape in which the specified direction is the longitudinal direction. The dimension of the protruding portion 18 in the short-side direction is set to be smaller than the dimension between the both end faces of the support portion 14.

The shape of the first magnetic material portion 7 in plan view is rectangular. The first magnetic material portion 7 is composed of the first magnetic body, but is not limited thereto, and may be composed of the first magnet. When the first magnetic material portion 7 is made of the first magnetic material, for example, an iron-cobalt alloy, an electromagnetic soft iron, an electromagnetic stainless steel, a high magnetic conductive alloy, or the like can be used. In addition, as for the material when the first magnetic material portion 7 is formed of the first magnet, for example, NdFeB alloy, SmCo, S-Co alloy, Al-Ni-Co, and fertilizer can be used. Granular iron, etc.

The magnet block 3 has a plurality of (for example, four) magnets 2, and the plurality of magnets 2 are arranged side by side in the above-described specified direction. That is, in the magnet block 3, the plurality of magnets 2 are arranged in an array. The magnet 2 should be composed of a permanent magnet. As the material of the permanent magnet, for example, a neodymium iron boron alloy, a samarium cobalt alloy, an alnico alloy, a ferrite iron or the like can be used.

The magnet 2 forms an elongated rectangular shape. Further, the magnet 2 is magnetized such that one surface side in the thickness direction is the N pole and the other surface side is the S pole. The permanent magnet constituting the magnet 2 can be formed, for example, by magnetizing a magnet material such as cutting or polishing, and then magnetizing it by a pulse magnetization method or the like.

In the magnet block 3, the magnets 2 are arranged such that the respective width directions of the plurality of magnets 2 coincide in the above-described specified directions. Further, the magnet block 3 is provided with a plurality of magnets 2 in such a manner that the N-pole and the S-pole are alternately arranged in the predetermined direction on both sides in the thickness direction of the magnet block 3. In short, the magnet block 3 causes the magnetization directions between the adjacent magnets 2 to be opposite directions in the above-described specified direction. Further, the magnet block 3 is formed by arranging a plurality of magnets 2 in a one-dimensional array. However, the present invention is not limited thereto. For example, it may be arranged in a two-dimensional array.

The vibration block 11 can form, for example, the movable portion body 13, the protruding portion 18, the support portion 14, and the respective elastic body portions 15 from the substrate 10. The substrate 10 is preferably an insulating substrate having low damping of magnetic lines of force and having electrical insulation. For example, a high-resistivity tantalum substrate can be used. The high resistivity ruthenium substrate, for example, has a resistivity of preferably 100 Ωcm or more, more preferably 1000 Ωcm or more. In the vibration block 11, when the substrate 10 is a ruthenium substrate, the material of the movable portion body 13, the protruding portion 18, the support portion 14, and the respective elastic portions 15 is 矽. The vibration blocks 11 can be manufactured, for example, by a manufacturing technique of MEMS (micro electro mechanical systems). At this time, in the vibration block 11, the movable portion main body 13, the protruding portion 18, the support portion 14, and the respective elastic body portions 15 can be integrally formed. In short, in the vibration block 11, the movable portion body 13, the protruding portion 18, the support portion 14, and the respective elastic body portions 15 can be integrally molded from one cymbal substrate. Therefore, when the vibration power generating device EH is manufactured, when the vibration block 11 is formed, the combination of the movable portion main body 13, the protruding portion 18, the support portion 14, and the respective elastic portions 15 is unnecessary, and manufacturing becomes easier. .

In addition, when each of the elastic body portion 15, the movable portion main body 13, and the support portion 14 is connected by a connection portion made of a bonding resin, when vibration occurs, the vibration energy is depleted in the connection portion into heat energy. On the other hand, in the structure in which the movable portion main body 13, the protruding portion 18, the support portion 14, and the respective elastic body portions 15 are integrally molded from one cymbal substrate, each of the elastic body portions 15, the movable portion main body 13, the protruding portion 18, and the support The portion 14 is integrally formed of a low damping material, that is, tantalum, so that energy loss during vibration can be reduced, thereby improving energy conversion efficiency. Further, as for the material of the substrate 10, it is preferable that the magnetic flux is not affected.

The substrate 10 is not limited to a high-resistivity germanium substrate. For example, a high-resistivity SOI (Silicon on Insulator) substrate or the like can be used. Further, the vibrating block 11 may be provided with an appropriate insulating film in accordance with the material or electrical resistivity of the substrate 10.

The elastomer portion 15 is preferably a spring. Thereby, the energy conversion device 1 can increase the energy stored in each of the elastic portions 15, and further reduce the size of the energy conversion device 1.

In the vibrating block 11, it is preferable that a plurality of elastic bodies 15 are arranged side by side on both sides of the movable portion 12 in the above-described specified direction. Thereby, the energy conversion device 1 can increase the energy direction of the movable portion 12 in a single direction as compared with the case where one elastic body portion 15 is provided on each side of the movable portion 12, thereby further increasing the energy. Conversion efficiency. Further, in the energy conversion device 1, the stress applied to each of the elastic portions 15 can be lowered, and the durability can be improved. The number of the elastic portions 15 on both sides of the movable portion 12 is not particularly limited.

As the material of the spring constituting the elastic body portion 15, a semiconductor (i.e., ruthenium) or a metal or the like can be used, but it is preferable to be a metal. Thereby, the energy conversion device 1 can reduce the kinetic energy loss due to the vibration damping of the elastic body portion 15 compared to the case where the material of the spring constituting the elastic body portion 15 is made of metal, so that the energy conversion efficiency can be improved.

The material of the elastic body portion 15 is not limited to ruthenium. For example, stainless steel (for example, SUS304 or the like), steel, copper, copper alloy (brass, beryllium copper), a Ti alloy, an Al alloy, or the like can be used. Elastomer The material of the portion 15 is preferably a material having a lower logarithmic decay rate, for example, a material having a logarithmic decay rate of 0.04 or less.

In the vibration power generator EH, if the material of the spring constituting the elastic body portion 15 is 矽, the durability of the elastic body portion 15 can be improved as compared with the case of metal. Further, in the vibration power generator EH, since the material of the spring constituting the elastic body portion 15 is 矽, the ruthenium substrate can be used as the above-described substrate 10, and each of the substrates 10 can be formed by a manufacturing technique such as MEMS. Each of the elastic portions 15 is configured. Thereby, the vibration power generating device EH can make the aspect ratio of the width dimension H1 (see FIG. 1) with respect to the thickness dimension W1 (see FIG. 2) larger than that indicated by the ratio of the thickness dimension W1 (see FIG. 2) in the spring-shaped elastic body portion 15. . When the manufacturing technique of MEM8 or the like is utilized, the substrate 10 is subjected to bulk micromachining by the lithography technique and the etching technique, so that the thickness W1 of the spring-shaped elastic body portion 15 can be controlled with high precision, and the spring shape can be made. Since the width dimension H1 of the elastic body portion 15 is the same as the thickness of the substrate 10, the spring portion 15 having a relatively large width and a high spring shape can be formed with good dimensional accuracy.

In the vibration power generating device EH shown in FIG. 1A, the shape of the elastic body portion 15 is a shape of a continuously curved spring, and the spring-shaped elastic body portion 15 has a thickness W1 of 0.4 mm and a width dimension H1 of 1 mm. . The aspect ratio at this time is 2.5. Further, in the case of this embodiment, the rigidity in the x-axis direction is about 2754 N/m, the rigidity in the y-axis direction is about 3267 N/m, and the rigidity in the z-axis direction is about 3146 N/m. That is, in this embodiment, the rigidity in the specified direction is smaller than the rigidity in the direction orthogonal to the specified direction. Here, as shown in FIG. 2, the numerical value is increased by two in the spring-shaped elastic body portion 15 which is continuously curved, and the interval between the adjacent portions is set to W3. The length of the entire elastic body portion 15 in the x-axis direction is set to X11, and the length of the entire elastic body portion 15 in the y-axis direction is set to Y11, and the values are when W3 = 0.12 mm, X11 = 7 mm, and Y11 = 7 mm. Further, regarding the measurement of the rigidity, for example, after the support portion 14 is fixed by the jig, the measurement is applied to the movable portion 12 by using a micro-tensile tester or a combination device of the load measuring device and the μ meter, and y is applied. The spring constant can be calculated from the displacement in the axial direction and the force in the z-axis direction.

The vibration power generating device EH is arranged side by side on both sides of the movable portion 12 in the specified direction. When the plurality of elastic bodies 15 are placed, the materials of the plurality of elastic bodies 15 respectively positioned on both sides of the movable portion 12 can be made of 矽. In the vibration block 11, as long as at least one of the plurality of elastic portions 15 located on both sides of the movable portion 12 has a material of the elastic portion 15, the material of the other elastic portions 15 is also Can be metal.

The shape of the spring constituting the elastic body portion 15 is, for example, preferably continuous curved. At this time, the elastic body portion 15 has a U-shaped shape in which the folded portion has no corner in the plan view shape, and is more preferably a U-shaped shape having an angle formed by the folded portion in the plan view shape. In the energy conversion device 1, the folded portion of the elastic body portion 15 has no angular shape, and it is possible to prevent the occurrence of breakage or cracking due to stress concentration in the folded portion of the elastic body portion 15.

Further, the continuously curved elastic body portion 15 may have a shape in which the thickness of the folded portion in the plan view is larger than the thickness of the other portion, so that the portion of the elastic portion 15 can be prevented from being concentrated due to stress concentration. The occurrence of breakage or cracks.

Further, the continuously curved elastic body portion 15 may have a shape in which the distance between the folded portions in the plan view is gradually shortened.

Further, the elastic body portion 15 is not limited to a continuously curved shape as long as it has a meander shape in plan view, and may have a wave shape (for example, a sinusoidal shape in plan view).

Further, the shape of the spring constituting the elastic body portion 15 is not limited to a serpentine shape such as a continuous curved shape or a wavy shape.

The thickness of the movable portion main body 13 is set to be the same as the thickness of each of the elastic portions 15, but is not limited thereto, and may be set to be larger than the thickness of each elastic portion 15 depending on factors such as the desired mass of the movable portion 12. The size is larger. Further, the thickness of the movable portion main body 13 may be smaller than the thickness of each of the elastic portions 15, and in this case, the rigidity of the elastic portion 15 in the opposing direction can be improved.

Further, when the vibration power generating device EH forms the shape of the spring of the spring constituting the elastic body portion 15 into a snake In the case of the row shape, it is preferable to make the dead angle area generated between the movable portion 12 and the support portion 14 in the above-described specified direction smaller. Thereby, the vibration power generating device EH can increase the total amount of energy accumulated as strain energy. Therefore, the vibration power generator EH has the same purpose of miniaturizing the elastic body portion 15 and reducing the height of the outer shape as long as the total amount of energy accumulated as the strain energy is the same. In the machining of a metal or the like, the thickness of the elastic body portion 15 is smaller than about 200 to 300 μm, or the size W3 between the folded portions is more than 200 to 300 μm. Miniaturization has its difficulties. On the other hand, when the elastic body portion 15 is formed by the bulk micromachining technique, the elastic body portion 15 can be further miniaturized, and the dead angle area can be reduced. In the design example in which the dead angle is reduced, for example, if the thickness W1 of the elastic portion 15 is about 10 μm, and the dimension W3 between the folded portions is about 10 μm, the elastic portion 15 can be formed by the bulk micromachining technique. .

Further, in the vibration block 11, the elastic body portion 15 may also have a shape of a corrugated plate (corrugated plate) in a side view.

The vibration power generator EH preferably has the same shape as the shape of the second spacer 42 and the shape of the second spacer 42. Thereby, the energy conversion device 1 can achieve the purpose of cost reduction by versatile parts.

Further, the outer dimensions of the first spacer 41 and the second spacer 42 preferably conform to the outer dimensions of the vibrating block 11.

For the material of each of the first spacer 41 and the second spacer 42, for example, a resin such as an engineering plastic (for example, polycarbonate), a ceramic, or a crucible may be used. When the material of each of the first spacer 41 and the second spacer 42 is 矽, the first spacer 41 and the second spacer 42 can be formed from the 矽 substrate. Thereby, the method of joining the first spacer 41 and the second spacer 42 to the support portion 14 of the vibration block 11 can be, for example, a surface activation bonding method, a eutectic bonding method, or a resin bonding method.

The outer dimensions of the first cap portion 21 and the second cap portion 31 are preferably in accordance with the outer dimensions of the vibrating block 11.

The vibration power generator EH preferably has the same shape as the shape of the second cap portion 31 and the shape of the second cap portion 31. Thereby, the energy conversion device 1 can achieve the purpose of cost reduction by versatile parts.

For the material of each of the first cap portion 21 and the second cap portion 31, for example, a resin such as an engineering plastic (for example, polycarbonate), a ceramic, or a crucible may be used. When the material of each of the first cap portion 21 and the second cap portion 31 is 矽, the first cap portion 21 and the second cap portion 31 can be formed from the 矽 substrate. Thereby, the method of joining the first cap portion 21 and the second cap portion 31 to the first spacer 41 and the second spacer 42 can be, for example, a surface activation bonding method, a eutectic bonding method, or a resin. Method such as bonding method. Further, the vibration power generating device EH may fix the first cap portion 21 and the second cap portion 31 to the vibration block 11 without providing the first spacer 41 and the second spacer 42.

In the vibration power generating device EH, a plurality of (for example, four) bolts may be used for the first cap portion 21, the first spacer 41, the vibration block 11, the second spacer 42, and the second cap portion 31 (in the figure) Not shown) fixed, or fixed with a bonding agent, or a bolt and a bonding agent as a fixing member. Further, the vibration power generating device EH may be provided in the respective constituent elements of the first cap portion 21, the first spacer 41, the vibration block 11, the second spacer 42, and the second cap portion 31. The vibration power generating device EH is fixed in such a manner that the adjacent component elements are fitted to each other in the thickness direction.

The vibration power generator EH shown in FIG. 4 is formed in each of the four corners of the first cap portion 21, the first spacer 41, the vibration block 11, the second spacer 42, and the second cap portion 31. The through holes 21a, 41a, 11a, 42a, and 31a through which the bolts can be inserted are fixed. Each of the through holes 21a, 41a, 11a, 42a, and 31a has a circular opening shape in plan view.

The coil block 4 has a plurality of (for example, five) coils 4a. The plurality of coils 4a are arranged side by side in the above-described specified direction and form a block by a bonding agent. In short, the coil block 4 is constituted by a coil array in which the coils 4a are arranged in an array. Further, the magnet block 3 is composed of a magnet array in which the magnets 2 are arranged in an array. The number of coils 4a of the coil block 4 is preferably one more than the number of magnets 2 of the magnet block 3. In short, if the number of magnets 2 of the magnet block 3 is m (m is a natural number), the number of coils 4a of the coil block 4 is preferably m+1. In addition, the vibration power generation device EH should be The pitch of the coils 4a in the coil block 4 is the same as the pitch of the magnets 2 in the magnet block 3. Further, in the coil block 4, it is preferable that the respective coils 4a are arranged such that the boundary between the adjacent magnets 2 in the opposing magnet block 3 is aligned on the same plane as the center line (opening axis) of the coil 4a. Thereby, the energy conversion efficiency of the energy conversion device 1 can be improved.

The coil 4a is composed of a coil wire wound around the core material 4b. In short, the coil 4a is a wound coil. Thereby, in the case where the coil 4a is a planar coil, the energy conversion device 1 can increase the number of windings per unit volume of the coil 4a, and further increase the amount of power generation.

Regarding the coil wire, a copper wire with an insulating coating may be used. The coil wire is wound around the core material 4b by a winding machine and fixed by a bonding agent or the like. As the material of the core material 4b, for example, a resin such as an engineering plastic (for example, polycarbonate) or an insulating material such as ceramics is preferably used. As the material of the insulating film covering the copper wire, for example, materials such as urethane, formal, polyester, polyamidomethacrylate, and polyamidoximine may be used.

The core material 4b is formed into an elongated rectangular shape. The core material 4b is disposed such that the thickness direction coincides with the specified direction, the width direction coincides with the thickness direction of the vibration block 11, and the longitudinal direction coincides with the direction orthogonal to the specified direction in plan view.

Each of the coil blocks 4 is wound around one end portion on the side of the magnet block 3 in the width direction of each core member 4b so that the side facing the opposing surface of the magnet block 3 is flattened.

The coil block 4 (hereinafter also referred to as "the first coil block 4A") held by the first cap portion 21 is inserted into and fixed to the other end of each of the core members 4b in the width direction. The plurality of positioning through holes 21c formed by the lid portion 21. When the first coil block 4A is assembled to the first cap portion 21, for example, a temporary member (a tool for assembly) that is placed in contact with the opposite side of the magnet block 3 is prepared. In the state of the flat surface, each core material 4b is fixed to the first cap portion 21, and then the temporary member may be removed. Thereby, in the first coil block 4A, the coil faces of the plurality of coils 4a are aligned, and the side opposite to the opposing surface of the magnet block 3 is slightly flattened. The first coil block 4A is disposed to face the magnet block 3 on one side in the thickness direction of the vibration block 11.

The coil block 4 (hereinafter also referred to as "second coil block 4B") held by the second cap portion 31 is inserted and fixed to the second end of each of the core materials 4b in the width direction. A plurality of through holes 31c for positioning formed by the cap portion 31. When the second coil block 4B is assembled to the second cap portion 31, for example, a temporary member (a tool for assembly) that is placed in contact with the opposite side of the magnet block 3 is prepared. In the state of the flat surface, each core material 4b is fixed to the second cap portion 31, and then the temporary member may be removed. Thereby, in the second coil block 4B, the coil faces of the plurality of coils 4a are aligned, and the side opposite to the opposing surface of the magnet block 3 is slightly flattened. The second coil block 4B is disposed to face the magnet block 3 on the other surface side in the thickness direction of the vibration block 11.

Between adjacent coils 4a in the coil block 4, the first conductive bonding material is joined and electrically connected. As a material of the first conductive bonding material, for example, solder, silver paste or the like can be used. The adjacent coils 4a are connected in series so as to form a reverse winding direction.

Further, the first cap portion 21 and the second cap portion 31 are provided with electrodes electrically connected to the end portions of the coils 4a at both ends of the coil block 4 that are not connected to the adjacent coils 4a. (Not shown in the figure). The wire end portion and the electrode are joined by a second conductive bonding material and electrically connected. As a material of the second conductive bonding material, for example, solder, silver paste or the like can be used. As the second conductive bonding material, a member such as a metal bolt can also be used.

In the vibration power generator EH of the present embodiment, each of the coils 4a includes a core material 4b (that is, each coil 4a is a so-called cored coil), but may be a core material 4b (so-called empty) Core coil). In the case where the core material 4b is not provided, for example, the first cap portion 21 and the second cap portion 31 may be provided with ribs that respectively position the respective coils 4a. In this case, for example, the ribs and the coil 4a may be joined by a bonding agent or the like in a state where the coil 4a is wound around the rib.

Further, each of the coils 4a may be formed of, for example, a planar coil. In this case, for example, a planar coil may be formed in each of the first cap portion 21 and the second cap portion 31.

As the material of the planar coil, for example, copper, gold, silver, or the like can be used. In addition, the plane coil The material may also be a high magnetic alloy, a cobalt-based amorphous alloy, or a ferrite iron. The planar coil can be formed by techniques such as a thin film forming technique such as a vapor deposition method or a sputtering method, a lithography technique, and an etching technique.

In the vibration power generator EH described above, the magnet block 3 and the coil block 4 are provided, and the magnet block 3 is disposed opposite to the coil block 4. The vibration power generator EH includes a movable portion 12 including a magnet block 3, a support portion 14, and an elastic portion 15 that connects the movable portion 12 and the support portion 14. Further, the elastic portion 15 has a rigidity in the specified direction smaller than a rigidity in a direction orthogonal to the specified direction. Then, the vibration power generating device EH can unidirectionally direct the vibration direction of the movable portion 12 in the predetermined direction orthogonal to the opposing direction of the magnet block 3 and the coil block 4, thereby improving the energy conversion efficiency.

Further, in the vibration power generating device EH, the coil blocks 4 are held by the first cap portion 21 and the second cap portion 31, respectively. Thereby, the vibration power generator EH can improve the energy conversion efficiency more than when only the coil block 4 is held by one of the first cap portion 21 and the second cap portion 31.

Further, the vibration power generating device EH can increase the output by connecting the series circuit of the plurality of coils 4a of the first coil block 4A and the series circuit of the plurality of coils 4a of the second coil block 4B in series.

Further, the vibration power generating device EH includes the first spacer 41 disposed between the first cap portion 21 and the vibration block 11. Thereby, the vibration power generating device EH can define the length of the pitch between the first coil block 4A and the magnet block 3 of the vibration block 11 by the thickness of the first spacer 41. Therefore, the vibration power generating device EH can prevent the distance between the first coil block 4A and the magnet block 3 of the vibration block 11 from being reduced, and the magnet of the first coil block 4A and the vibration block 11 can be prevented. Block 3 is in contact. In the vibration power generating device EH, by reducing the pitch between the coil block 4 of the first cap portion 21 and the magnet block 3 of the vibration block 11, the utilization efficiency of the magnetic flux can be improved, and the energy conversion efficiency can be improved.

Further, the vibration power generating device EH includes a second spacer 42 disposed between the second cap portion 31 and the vibration block 11. Thereby, the vibration power generating device EH can define the second coil by the thickness of the second spacer 42. The length of the spacing between the block 4B and the magnet block 3 of the vibrating block 11. Therefore, in addition to reducing the pitch between the second coil block 4B and the magnet block 3 of the vibration block 11, the vibration power generating device EH can prevent the magnet of the second coil block 4B and the vibration block 11 from being further prevented. Block 3 is in contact. The vibration power generating device EH can reduce the distance between the second coil block 4B and the magnet block 3 of the vibration block 11 to improve the utilization efficiency of the magnetic flux and further improve the energy conversion efficiency.

The vibration power generating device EH generates an induced electromotive force of the alternating current by electromagnetic induction caused by the vibration of the movable portion 12 in the predetermined direction. The open voltage of the vibration power generating device EH is an alternating voltage corresponding to the vibration of the movable portion 12. Here, after the external energy is applied to the input mechanism 5 to displace the movable portion 12 in the predetermined direction, the second magnetic material portion 6 is separated from the first magnetic material portion 7, and the movable portion 12 is moved. Damping vibration is generated, so an AC voltage is generated which should dampen the vibration.

Further, the energy conversion device 1 includes a mounting substrate 8 on which the vibration power generating device EH can be mounted. As the mounting substrate 8, for example, a circuit board such as a printed wiring board can be used. The input mechanism 5 is fixed to the mounting substrate 8. Thereby, the energy conversion device 1 can define the relative positional relationship between the vibration power generating device EH and the input mechanism 5.

The input mechanism 5 includes: a cylindrical rotating shaft 51 that can be fixed to the mounting substrate 8; a rotating portion body 52 that is rotatably held by the rotating shaft 51; an operating portion 53 that protrudes from the rotating portion body 52; The protruding portion 54 of the rotating portion body 52 that protrudes toward the opposite side of the operating portion 53. The operation unit 53 is, for example, a size that the user who forms the energy conversion device 1 can operate with a finger or the like. The operation portion 53, the rotation portion main body 52, and the protruding portion 54, for example, may be formed of a resin. The second magnetic material portion 6 is connected to the front end surface of the protruding portion 54. In the input mechanism 5, the protruding portion 54 and the second magnetic material portion 6 are connected by a bonding agent. The second magnetic material portion 6 has a rectangular shape in plan view.

The second magnetic material portion 6 is composed of a second magnet, but is not limited thereto, and may be composed of a second magnetic body. When the second magnetic material portion 6 is composed of the second magnet, for example, a neodymium iron boron alloy, a samarium cobalt alloy, an alnico alloy, a ferrite iron or the like can be used. Further, when the second magnetic material portion 6 is composed of the second magnetic material, the material thereof may be, for example, an iron-cobalt alloy, an electromagnetic soft iron, or an electromagnetic non-electrode. Stainless steel, high magnetic alloy, etc.

The direction of the magnetic force generated between the first magnetic material portion 7 and the second magnetic material portion 6 is a direction in which the first magnetic material portion 7 and the second magnetic material portion 6 are attracted to each other, but is not limited thereto. The direction in which the first magnetic material portion 7 and the second magnetic material portion 6 repel each other. For example, the first magnetic material portion 7 is composed of a first magnet, and the second magnetic material portion 6 is composed of a second magnet. When the first magnet and the second magnet are opposed to each other, the first magnet is placed opposite to each other. In the case of the magnet and the second magnet, the direction of the magnetic force generated between the first magnetic material portion 7 and the second magnetic material portion 6 is the direction in which the first magnetic material portion 7 and the second magnetic material portion 6 repel each other. .

In the input mechanism 5, the operation portion 53, the protruding portion 54, and the second magnetic material portion 6 are arranged on a straight line, and the straight line connecting the operation portion 53, the protruding portion 54, and the second magnetic material portion 6 is substantially the same as the specified direction. Orthogonal configuration.

Here, the input mechanism 5 includes, for example, a return spring 55 composed of a torsion coil spring as shown in FIG. 5 . The return spring 55 is disposed so as to surround the rotating shaft 51 in the rotating portion main body 52. The one end portion 55a is fixed to the mounting substrate 8, and the other end portion 55b is fixed to the operating portion 53.

In the input mechanism 5 shown in FIG. 5, an external force against the spring force of the return spring 55 is applied to the operation portion 53 at the initial position, and the protruding portion 54 is displaced in the direction away from the protruding portion 18 along the predetermined direction. Then, in the input mechanism 5, when the external force applied to the operation portion 53 disappears, the operation portion 53 returns to the initial position by the spring force of the return spring 55.

The input mechanism 5 is not limited to the configuration of FIG. 5, and for example, the configuration shown in FIG. 6 can also be employed. The input mechanism 5 shown in Fig. 6 is provided with a return spring 56 composed of a coil spring. The return spring 56 is held between the operation portion 53 and the fixing portion 57 opposed to the operation portion 53. The fixing portion 57 is fixed to the mounting substrate 8.

In the input mechanism 5 shown in FIG. 6, an external force against the spring force of the return spring 56 is applied to the operation portion 53 at the initial position, and the protruding portion 54 is moved away from the protruding portion 18 along the specified direction. Directional displacement. Then, in the input mechanism 5, when the external force applied to the operation portion 53 disappears, the operation portion 53 returns to the initial position by the spring force of the return spring 56.

When the first magnetic material portion 7 is the first magnetic material and the second magnetic material portion 6 is the second magnetic material, the input mechanism 5 is provided with a magnet that can magnetize the second magnetic material portion 6 (hereinafter referred to as "magnetization magnet". ")). In the input mechanism 5, the magnet for magnetization is brought into contact with the second magnetic material portion 6, and the second magnetic material portion 6 is magnetized to generate a magnetic force between the second magnetic material portion 6 and the first magnetic material portion 7, and magnetization is performed. When the magnet is separated from the second magnetic material portion 6, the magnetic gas of the second magnetic material portion 6 is eliminated, and the magnetic force between the second magnetic material portion 6 and the first magnetic material portion 7 is eliminated.

In the vibration block 11, the support portion 14 is provided with a stopper structure (first stopper portion) 14c that limits the displacement amount of the movable portion 12 in the predetermined direction to a predetermined value. The stopper structure 14c has a push-out shape that is inclined with respect to a plane parallel to the predetermined direction on the inner side surface of the support portion 14. On the other hand, on the outer peripheral surface of the movable portion 12 (the outer surface of the movable portion main body 13), an inclined surface 12c that is substantially parallel to the stopper structure 14c is provided. The inclined surface 12c provided in the movable portion 12 is inclined with respect to the surface parallel to the predetermined direction on the outer peripheral surface of the movable portion 12. When the external force is applied to the input mechanism 5 to displace the movable portion 12 in the predetermined direction, the energy conversion device 1 is in contact with the stopper structure 14c, and the displacement amount of the movable portion 12 is limited to the predetermined value. Therefore, the displacement amount of the movable portion 12 can be made slightly larger than a fixed value. Further, the energy conversion device 1 can prevent the movable portion 12 from being displaced in a direction different from the above-described specified direction. Thereby, the energy conversion device 1 can prevent a difference in power generation output every time an external force is applied, and can prevent the elastic body portion 15 from exerting too much force in a direction other than the predetermined direction when the external force is applied, thereby making it reliable. Increased.

An example of the operation of the energy conversion device 1 will be described with reference to FIGS. 7A to 7D. FIGS. 7A to 7D show the case where the second magnetic material portion 6 is composed of the second magnet and the first magnetic material portion 7 is composed of the first magnetic body. Explanation of the operation example.

As shown in FIG. 7A, the energy conversion device 1 has the first magnetic material by the magnetic force generated between the second magnetic material portion 6 and the first magnetic material portion 7 in a state where the operation portion 53 is at the initial position. The portion 7 is adsorbed to the second magnetic material portion 6. In the energy conversion device 1, when the operation is located at the initial position When the external force of the operation portion 53 in the direction of the vibration power generating device EH (the arrow direction in FIG. 7A) is applied, the operation portion 53 and the protruding portion 54 face the counterclock as shown by the arrow in FIG. 7B. The direction is rotated. At this time, in the energy conversion device 1 , the movable portion 12 moves against the elastic force of the elastic body portion 15 on the right side of FIG. 7B , and the first magnetic material portion 7 is maintained in the state of being adsorbed to the second magnetic material portion 6 . In addition, the arrow attached to the input mechanism 5 in Fig. 7B indicates the direction of rotation of the input mechanism 5.

Then, in the energy conversion device 1, the operation portion 53 is further rotated, and when the spring force of the elastic body portion 15 is larger than the magnetic force between the first magnetic material portion 7 and the second magnetic material portion 6, as shown in Fig. 7C As shown, the first magnetic material portion 7 is separated from the second magnetic material portion 6, and the movable portion 12 vibrates in the specified direction. This vibration is a damped vibration. In addition, in FIG. 7C, the arrow attached to the movable portion 12 indicates the vibration direction of the movable portion 12, and the arrow attached to the input mechanism 5 indicates the rotational direction of the input mechanism 5.

Thereafter, when the external force applied to the input mechanism 5 is stopped, the input mechanism 5 returns to the initial position by the spring force of the return spring 55. In addition, the arrow attached to the input mechanism 5 in Fig. 7D indicates the direction of rotation of the input mechanism 5.

In the energy conversion device 1 of the present embodiment, when the operation portion 53 is rotated by the first predetermined angle (for example, 5°) from the initial position, the movable portion 12 is displaced by the predetermined value and comes into contact with the stopper structure 14c to cause the operation portion. When the spring force of the elastic body portion 15 is larger than the magnetic force between the first magnetic material portion 7 and the second magnetic material portion 6 when the second predetermined angle (for example, 10°) is rotated from the initial position, the elastic body portion 15 is designed to be larger than the magnetic force between the first magnetic material portion 7 and the second magnetic material portion 6. Spring force. The first predetermined angle and the second predetermined angle are not particularly limited, and are preferably set such that the second magnetic material portion 6 is displaced in a straight line along the predetermined direction.

The energy conversion device 1 described above includes an input mechanism 5 for displacing the movable portion 12 along the predetermined direction, a first magnetic material portion 7 connected to the movable portion 12, and a second magnetic material connected to the input mechanism 5. The movable portion 12 is displaced by the magnetic force generated between the first magnetic material portion 7 and the second magnetic material portion 6. Thereby, the energy conversion device 1 can move the movable portion 12 by applying an appropriate external force to the input mechanism 5, and can prevent the force in the direction different from the predetermined direction from acting on the movable portion 12, thereby improving energy. Conversion efficiency (power generation efficiency) and reliability. The energy conversion device 1 has an input mechanism 5, a second magnetic material portion 6, and a first magnetic material portion. 7 constitutes an actuator that displaces the movable portion 12.

In the energy conversion device 1, the first magnetic material portion 7 is composed of either the first magnetic material or the first magnetic material, and the second magnetic material portion 6 is composed of the second magnetic material or the second magnetic material. Since it is configured, the magnetic force generated between the first magnetic material portion 7 and the second magnetic material portion 6 can be appropriately set.

Further, in the energy conversion device 1, since the directions of the magnetic forces generated between the first magnetic material portion 7 and the second magnetic material portion 6 are mutually attracted, the direction of the magnetic force is mutually exclusive. Further, the movable portion 12 can be stably displaced in the above-described specified direction.

As shown in FIG. 8A, the energy conversion device 1 may be configured such that the movable portion 12 is provided with a stopper structure (second stopper portion) 18a that restricts the displacement amount of the movable portion 12 in the predetermined direction to the predetermined value. structure. The stopper structure 18a is formed by providing a part of the protruding portion 18 that protrudes from the movable portion 12 to be wider than the width of the front end portion 18b. Here, the width dimension of the stopper structure 18a is set to be longer than the distance between the both end faces 14e, 14e of the support portion 14. As a result, the energy conversion device 1 can limit the displacement amount of the movable portion 12 to the predetermined value as shown in FIG. 8B, so that the displacement amount of the movable portion 12 can be made substantially a fixed value. Further, the energy conversion device 1 can prevent the movable portion 12 from being displaced in a direction different from the predetermined direction. Thereby, the energy conversion device 1 can prevent a difference in the power generation output of the external force every time, and can prevent the elastic body 15 from exerting too much force in a direction other than the predetermined direction when the external force is applied. Improve reliability.

In the example of FIGS. 8A and 8B, since the stopper structure 18a is disposed on the same straight line as the input mechanism 5 in the predetermined direction, it is possible to prevent the movable portion 12 from being input with an unnecessary displacement other than the predetermined direction.

In the energy conversion device 1, as shown in FIG. 9, the both end faces 14e and 14e of the support portion 14 may be in a direction orthogonal to the specified direction as they move away from the movable portion 12 in the specified direction. The distance is gradually shortened, and the both end faces 14e and 14e constitute a stopper structure that limits the displacement amount of the movable portion 12 in the predetermined direction to a predetermined value. The movable portion 12 is preferably provided on the designated side When the upward movable portion 12 is displaced by the predetermined value, the two inclined surfaces 18e and 18e which are in surface contact with the both end faces 14e and 14e, respectively. Thereby, the energy conversion device 1 can prevent the occurrence of an unnecessary displacement other than the predetermined direction in the movable portion 12.

As shown in FIG. 10, the energy conversion device 1 may have a structure in which the first magnetic material portion 7 is connected to the movable portion 12 via the spring 16. Thereby, the energy conversion device 1 can alleviate the tensile stress applied to the movable portion 12 and the first magnetic material portion 7, and further improve the reliability.

As shown in FIG. 11, the energy conversion device 1 may have a structure in which the second magnetic material portion 6 is connected to the input mechanism 5 via the spring 17. Thereby, the energy conversion device 1 can alleviate the tensile stress applied to the second magnetic material portion 6 and the input mechanism 5, and further improve the reliability.

In the energy conversion device 1, as shown in FIG. 12, the formation support portion 14 may include a third magnetic material portion that is adsorbed by the second magnetic material portion 6 at a position where the second magnetic material portion 7 adsorbs the first magnetic material portion 7. The construction of 19. As a result, in the energy conversion device 1, since the displacement amount of the movable portion 12 is restricted by the displacement amount of the second magnetic material portion 6, the displacement amount of the movable portion 12 can be made substantially a fixed value. Further, the energy conversion device 1 can prevent the movable portion 12 from being displaced in a direction different from the above-described designated direction. Thereby, the energy conversion device 1 can prevent a difference in power generation output every time an external force is applied, and can prevent the elastic body 15 from exerting too much force in a direction other than the predetermined direction when an external force is applied, thereby further Improve reliability.

Further, in the above-described embodiment, the movable portion 12 includes the magnet block 3, and the first cap portion 21 and the second cap portion 31 each include the coil block 4, but the present invention is not limited thereto, and may be movable. The portion 12 includes the coil block 4, and at least one of the first cap portion 21 and the second cap portion 31 has a structure in which the magnet block 3 is provided. Further, the elastic body portion 15 may be formed of a material such as rubber or resin without forming a spring shape.

(Implementation 2)

Hereinafter, the energy conversion device 1 of the present embodiment will be described with reference to Figs. 13A, 13B, and 14 to 22. The same components as those in the first embodiment are denoted by the same reference numerals, and their description will be omitted as appropriate.

The energy conversion device 1 includes a circuit portion 70 that is connected between the output ends of the vibration power generation device EH.

In addition, the vibration power generator EH includes a plurality of (four in the illustrated example) coupling members 9 that penetrate the first cap portion 21, the vibration block 11, and the second cap portion 31. Each of the bonding members 9 has electrical conductivity. In the vibration power generator EH, the first wiring 61 connected to the first coil block 4A and the second wiring 62 connected to the second coil block 4B are electrically connected to each other through the coupling member 9.

The coupling member 9 is inserted through the through holes 21a, 41a, 11a, and 42a and the through hole 31a which are overlapped in the thickness direction of the vibration block 11. Further, in the energy conversion device 1, each of the through holes 21a of the first cap portion 21 constitutes a first hole that communicates with each of the through holes 11a, and each of the through holes 31a of the second cap portion 31 constitutes a through hole. The second hole that 11a communicates. Further, in the energy conversion device 1, each of the through holes 41a of the first spacer 41 constitutes a third hole that communicates with each of the through holes 11a. Further, in the energy conversion device 1, each of the through holes 42a of the second spacer 42 constitutes a fourth hole that communicates with each of the through holes 11a.

Each constituent element of the energy conversion device 1 will be described in detail below.

As shown in FIGS. 14 to 16, the vibration block 11 is integrally provided from the movable portion main body 13 toward the two projections 13b that protrude in a direction orthogonal to the predetermined direction in plan view. Each of the projections 13b has a rectangular shape in plan view. Further, in the vibration block 11, two first recesses (first notch portions) 14b for displacing the respective projections 13b in the predetermined direction are formed on the inner side surface of the frame-shaped support portion 14. Then, in the first cap portion 21 and the second cap portion 31, rectangular through holes 21b and 31b are formed in the projection regions of the respective first recess portions 14b. Further, on the inner side surfaces of the first spacer 41 and the second spacer 42, second recesses (second notches) 41b and 42b are formed in the projection regions of the respective first recesses 14b. Therefore, in addition to the case where the movable unit 12 is displaced in the predetermined direction by the input mechanism 5, the energy conversion device 1 can be appropriately used for the protrusion 13b through the through holes 21b and 31b and the second recesses 41b and 42b from the outside. The tool applies an external force to displace the movable portion 12 in the specified direction. Thereby, the vibration power generating device EH of the energy conversion device 1 can move the movable portion 12 in the predetermined direction by pulling the tool away after the projection 13b is displaced.

When the vibration power generating device EH applies an external force to the protruding portion 13b by an appropriate tool and the movable portion 12 is displaced in the predetermined direction, the inclined surface 12c comes into contact with the stopper structure 14c, and the displacement of the movable portion 12 is restricted. Thereby, the vibration power generator EH can make the displacement amount of the movable portion 12 slightly larger.

In the first coil block 4A, both ends of a circuit in which the plurality of coils 4a are connected in series are electrically connected to the bonding member 9 through the first wiring 61. Each of the first wires 61 is connected to each of the wire ends of the respective coils 4a at both ends of the first coil block 4A. The end portion of the coil 4a is the end on the side of the coil 4a that is not connected to the adjacent coil 4a. The first wire 61 is led out from the through hole 21 c of the first cap portion 21 . The through hole 21 c is formed to penetrate the thickness direction of the first cap portion 21 . The opening shape of the through hole 21c has a rectangular shape.

In the second coil block 4B, both ends of the circuit in which the plurality of coils 4a are connected in series are electrically connected to the bonding member 9 through the second wiring 62. Each of the second wires 62 is connected to each of the wire ends of the respective coils 4a at both ends of the second coil block 4B. The end portion of the coil 4a is the end on the side of the coil 4a that is not connected to the adjacent coil 4a. The second wire 62 is led out from the through hole 31 c of the second cap portion 31 . The through hole 31c is formed to penetrate the thickness direction of the second cap portion 31. The opening shape of the through hole 31c has a rectangular shape.

In the vibration power generator EH, the coupling member 9 is a metal bolt 91 and includes a nut 92 that is screwed to the front end portion 91b of the bolt 91. In short, the vibration power generating device EH uses the plurality of (four in the illustrated example) coupling members composed of the bolt 91 and the nut 92 to connect the first cap portion 21 and the first spacer 41. The vibration block 11, the second spacer 42 and the second cap portion 31 are coupled. In the vibration power generator EH, the head portion 91a of the bolt 91 constituting the coupling member 9 is exposed on the side opposite to the vibration block 11 side of the first cap portion 21, and the tip end portion 91b of the bolt 91 and the nut 92 are The opposite side of the second block portion 31 on the side of the vibration block 11 is exposed. In the vibration power generator EH, the end portion of the first wire 61 on the side opposite to the first coil block 4A side is held between the head portion 91a of the bolt 91 and the first cap portion 21, and is electrically connected to the bolt 91. . Further, in the vibration power generating device EH, the end portion on the opposite side of the second coil block 4B side of the second wire 62 is held by the screw that is screwed to the tip end portion 91b of the bolt 91. The cap 92 and the second cap portion 31 are electrically connected to the bolt 91. The vibration power generator EH preferably includes a gasket 93 that is interposed between the second cap portion 31 and the nut 92. The washer 93 is a flat washer, but is not limited thereto, and may be, for example, a spring washer. Further, when the substrate 10, the first cap portion 21, the second cap portion 31, the first spacer 41, and the second spacer 42 are made of a conductive material, there is a possibility that the metal bolt 91 may be used. The appropriate contact film can be placed on the contact area.

The vibration power generator EH includes the first spacer 41 and the second spacer 42 , but may have a structure in which the first spacer 41 and the second spacer 42 are not provided.

The vibration power generating device EH and the circuit portion 70 are electrically connected to each other through the pair of third wires 63. Each of the third wires 63 can be electrically connected to the two bolts 91 , and the two bolts 91 are electrically connected to the first wire 61 and the second wire 62 .

For the circuit portion 70, for example, the circuit configuration shown in FIG. 17 can be employed. The circuit unit 70 preferably includes a rectifying and smoothing circuit 71 connected between the output ends of the vibration power generating device EH, and a step-up DC/DC converter 72 connected between the output ends of the rectifying and smoothing circuit 71. In the circuit configuration shown in FIG. 17, the rectifying and smoothing circuit 71 and the DC/DC converter 72 constitute a DC circuit portion 73 that connects two bonding members electrically connected to the first wiring 61 and the second wiring 62. The AC output between 9 is converted to the desired DC output.

The rectifying and smoothing circuit 71 is configured to output an AC voltage generated by the vibration power generating device EH as a rectified and smoothed DC voltage.

The rectifying and smoothing circuit 71 is, for example, a full-wave rectifying circuit that can be bridge-connected by four rectifying diodes D1 to D4 and a smoothing capacitor connected between the output ends of the full-wave rectifying circuit, as shown in FIG. C4 is composed. As the full-wave rectifier circuit, for example, a surface mount type rectifier (also referred to as a bridge rectifier diode) in which four rectifier diodes D1 to D4 in a package are connected in a bridge can be used.

Further, the rectifying and smoothing circuit 71 may be, for example, a rectifying diode D5 as shown in FIG. And a smoothing capacitor C5 connected in series to the rectifying diode D5.

Further, as the rectifying and smoothing circuit 71, for example, a full-wave voltage doubler rectifier circuit using two diodes D11 and D12 and two capacitors C11 and C12 may be employed as shown in FIG.

The full-wave voltage doubler rectifier circuit is a series circuit of two diodes D11 and D12 connected in parallel with a series circuit of two capacitors C11 and C12. In short, the full-wave voltage doubler rectifier circuit is a two-pole diode D11, D12 and two capacitors C11, C12 bridge connection. Here, in the energy conversion device 1, one output end of the vibration power generating device EH is connected to a connection point of the two diodes D11 and D12 in the series circuit of the two diodes D11 and D12, and the vibration power generating device EH is connected. The other output is connected to the connection point of the two capacitors C11 and C12 in the series circuit of the two capacitors C11 and C12. The energy conversion device 1 employs a full-wave voltage doubler rectifier circuit as shown in FIG. 20 as the rectification smoothing circuit 71, and the output of the rectifying and smoothing circuit 71 can be further improved as compared with the case of employing the configuration of FIG. 18 or the configuration of FIG. . In short, the energy conversion device 1 adopts the configuration of FIG. 20 as the rectification smoothing circuit 71, and the energy conversion efficiency can be improved.

For example, as shown in FIG. 21, the DC/DC converter 72 may include an integrated circuit IC ₁ for a step-up DC-DC converter, a boost inductor L ₁ , and a first capacitor C _IN . 2 The construction of components such as capacitor C _OUT . As for the integrated circuit IC ₁ , for example, MCP1640/B/C/D of Microchip Technology can be used. The first capacitor C _{IN is} connected between the output terminals of the rectifying and smoothing circuit 71. Further, the first capacitor C _{IN is} connected between the V _IN terminal and the GND terminal of the input terminal of the integrated circuit IC ₁ . The second capacitor C _{OUT is} connected between the V _OUT terminal and the GND terminal of the output terminal of the integrated circuit IC ₁ . The boost inductor L _{1 is} connected between the V _IN terminal of the integrated circuit IC ₁ and the SW terminal. The package of the integrated circuit IC ₁ is preferably a surface mount package. Further, it is preferable to use a surface mount type of chip capacitor for the first capacitor C _IN and the second capacitor C _OUT . The boost inductor L ₁ may be, for example, a surface mount type chip inductor or a built-in component embedded in a circuit board constituting the mounting substrate 8. The boost inductor L ₁ can be formed by using a part built-in technology (electronic component built-in substrate technology). As the circuit board, for example, a printed wiring board, a ceramic substrate, or the like can be used. For the built-in technology of a component in which a component as a built-in component is built in a circuit board, for example, a component formed of a material (a paste, a diaphragm, a film material, or the like) for forming a component can be used in a circuit. A method in the substrate or a method of embedding a constituent member composed of a wafer component in a circuit board.

Further, as shown in FIG. 22, for example, the DC/DC converter 72 may include an integrated circuit IC ₂ for a step-up DC-DC converter, a boost inductor L1, and a third capacitor C1. 4 The construction of components such as capacitor C2. Regarding the integrated circuit IC ₂ , for example, TPS61097-33 of TEXAS INSTRUMENT Co., Ltd. can be used. The third capacitor C1 is connected between the output terminals of the rectifying and smoothing circuit 71. Further, the third capacitor C1 is connected between the VIN terminal and the GND terminal, which is an input terminal of the integrated circuit IC ₂ . The fourth capacitor C2 is connected between the VOUT terminal and the GND terminal of the output terminal of the integrated circuit IC ₂ . The boost inductor L1 is connected between the L terminal of the integrated circuit IC ₂ and the VIN terminal. The package of the integrated circuit IC ₂ is preferably a surface mount package. Further, it is preferable to use a surface mount type of chip capacitor for the third capacitor C1 and the fourth capacitor C2. The boost inductor L1 may be, for example, a surface mount type chip inductor or a built-in component embedded in a circuit board constituting the mounting substrate 8.

Further, the configuration of the DC/DC converter circuit 72 is not particularly limited, and may be, for example, a step-up DC-DC converter including a boosting transformer.

The components of the DC circuit portion 73 are preferably provided on one circuit board.

The circuit unit 70 may also include a load 76 that uses the DC circuit portion 73 as a power source. In the example shown in FIG. 17, the circuit unit 70 includes a control unit 74, an RF circuit 75 controlled by the control unit 74, and an antenna 77 that transmits an electrical signal of the RF circuit 75 as a wireless signal to constitute a load 76. The control unit 74 is configured by, for example, a microcomputer loaded with an appropriate program.

The load 76 is not limited to the above examples, and for example, an inductor (for example, a temperature sensor, an acceleration sensor, a pressure sensor), a solid-state light-emitting element (for example, a light-emitting diode, a semiconductor laser, etc.), and a wireless communication element can be used. An arithmetic element (for example, an MPU (Micro Processor Unit) or the like), a battery, a storage capacitor, or the like.

Further, in the power generating device 500 shown in Fig. 37, the permanent magnet 120 and the planar coils 114a and 114b are arranged to face each other in the thickness direction of the support 110, and similarly, the permanent magnet 120 and the planar coils 514a and 514b are The support body 110 is disposed opposite to each other in the thickness direction. Further, in the power generating device 500, the permanent magnet 120 is pressed by the pair of coil springs 130 so as to be placed at a predetermined reference position with respect to the support 110 in the direction of the arrow X1 (arrow X2 direction). However, it is assumed that in the power generating device 500, the intermediate portion of the coil spring 130 may be displaced in the direction of the arrow Z1. Therefore, in the power generating device 500, since the vibration of the permanent magnet 120 in the thickness direction fluctuates the above-described interval, the power generation characteristics become unstable, and the power generation efficiency is lowered. In other words, the energy conversion device such as the power generation device 500 has an unstable energy conversion characteristic and a low energy conversion efficiency. Further, in the power generating device 500, when the above-described interval is reduced, the permanent magnet 120 may be in contact with the planar coils 114a and 114b or in contact with the planar coils 514a and 514b.

Further, it is assumed that the power generating device 500 described above is in contact with the permanent magnet 120 by the side surface 112b of the opening 112a of the printed circuit board 112 to restrict the movement of the permanent magnet 120 with respect to the arrow Y1 direction (arrow Y2 direction). However, in such a case, the permanent magnet 120 generates a sliding resistance when it vibrates in the direction of the arrow X1 (arrow X2 direction), thereby causing a decrease in power generation efficiency.

On the other hand, in the vibration power generator EH, the rigidity of the elastic body portion 15 in the predetermined direction is smaller than the rigidity in the direction orthogonal to the predetermined direction. Thereby, the vibration power generator EH can unidirectionally direction the direction of the vibration of the movable portion 12 in the direction orthogonal to the direction of the direction in which the magnet block 3 and the coil block 4 are opposed, thereby improving the energy conversion efficiency.

Further, the vibration power generating device EH includes the first spacer 41 disposed between the first cap portion 21 and the vibration block 11. Thereby, the vibration power generating device EH can define the length of the pitch between the first coil block 4A and the magnet block 3 of the vibration block 11 by the thickness of the first spacer 41. Therefore, in addition to the reduction in the pitch between the first coil block 4A and the magnet block 3 of the vibration block 11, the vibration power generating device EH can prevent the first coil block 4A and the vibration block 11 from being further reduced. The magnet block 3 is in contact. In the vibration power generating device EH, by reducing the pitch between the first coil block 4A and the magnet block 3 of the vibration block 11, the utilization efficiency of the magnetic flux can be improved, and the energy conversion efficiency can be improved.

Further, the vibration power generating device EH includes a second spacer 42 disposed between the second cap portion 31 and the vibration block 11. Thereby, the vibration power generator EH can define the length of the pitch between the second coil block 4B and the magnet block 3 of the vibration block 11 by the thickness of the second spacer 42. Therefore, in addition to reducing the pitch between the second coil block 4B and the magnet block 3 of the vibration block 11, the vibration power generating device EH can prevent the magnet of the second coil block 4B and the vibration block 11 from being further prevented. Block 3 is in contact. The vibration power generating device EH can reduce the distance between the second coil block 4 and the magnet block 3 of the vibration block 11 to improve the utilization efficiency of the magnetic flux and further improve the energy conversion efficiency.

The vibration power generating device EH generates an AC induced electromotive force by electromagnetic induction caused by vibration of the movable portion 12 in the predetermined direction. The open voltage of the vibration power generating device EH is an alternating voltage corresponding to the vibration of the magnet block 3. In the energy conversion device 1, after the external force is applied to the input mechanism 5 to displace the movable portion 12 in the predetermined direction, when the second magnetic material portion 6 is separated from the first magnetic material portion 7, the movable portion 12 is damped. Therefore, the vibration power generating device EH of the energy conversion device 1 generates an alternating voltage that should dampen the vibration. In the vibration power generator EH, as described above, when the external force is applied to the protrusion 13b by a tool or the like, the tool is removed, and the movable portion 12 performs damped vibration to generate an AC voltage that should dampen the vibration. Further, the energy conversion device 1 can generate electric power by using environmental vibration (external vibration) that matches the resonance frequency of the vibration power generation device EH. For environmental vibrations, for example, vibrations generated by FA (factory automation) machines in operation, vibrations generated by vehicle travel, vibrations generated by human walking, and various environmental vibrations. When the frequency of the environmental vibration coincides with the resonance frequency of the vibration power generating device EH, the frequency of the alternating voltage generated by the vibration power generating device EH is the same as the resonant frequency of the vibration power generating device EH.

The energy conversion device 1 of the present embodiment includes a first cap portion 21 that is disposed on the one surface side of the vibration block 11 and holds the first coil block 4A, and is disposed on the other surface side of the vibration block 11 and The second cap portion 31 of the second coil block 4B is held. Thereby, the energy conversion device 1 can improve the energy conversion efficiency even when the coil block 4 is disposed only in one of the thickness directions of the vibration block 11.

Further, it is assumed that the power generating device 500 of FIG. 37 is required to electrically connect the circuit portion 116 on the top surface of the printed circuit board 113 and the circuit portion on the bottom surface of the printed circuit board 111 in order to increase the amount of power generation. It is considered that the power generating device 500 is wound around the outside of the support 110 to electrically connect the circuit portion 116 on the top surface of the printed substrate 113 to the circuit portion on the bottom surface of the printed substrate 111. However, it is inferred that these power generating devices 500 are expected to be further improved in ease of operation because the wires are externally wound.

Further, in the power generating device 500, the support 110 is composed of the printed boards 111, 112, and 113, and the power generation efficiency is lowered due to the positional deviation in the direction of the arrow X1 or the direction of the arrow X2 when the support 110 is assembled. After that.

On the other hand, the energy conversion device 1 includes a plurality of coupling members 9 that penetrate the first cap portion 21, the vibration block 11, and the second cap portion 31, and each of the coupling members 9 has conductivity. Then, in the energy conversion device 1, the first wiring 61 connected to the first coil block 4A and the second wiring 62 connected to the second coil block 4B are electrically connected to each other through the coupling member 9. Thereby, the energy conversion device 1 can prevent the vibration block 11, the first cap portion 21, and the second cap portion 31 from being displaced in the direction orthogonal to the thickness direction of the vibration block 11 at the time of assembly. Thereby, the energy conversion device 1 can prevent the energy conversion efficiency (power generation efficiency) from being lowered, and the energy conversion efficiency is different between each product. Further, in the case where the power conversion device 1 is externally wound around the electric power device 500, the operational convenience can be improved. Further, in the energy conversion device 1 of the present embodiment, the first wiring 61 and the second wiring 62 are wound as compared with the energy conversion device 1 of the first modified example shown in FIGS. 23 and 24, Improves ease of operation.

Therefore, the energy conversion device 1 of the present embodiment can improve the energy conversion efficiency and can improve the operation convenience. The energy conversion device 1 according to the first modified embodiment includes the above-described input mechanism 5 (see FIG. 16).

Further, in the energy conversion device 1, the vibration block 11 includes the support portion 14, the movable portion main body 13, the magnet block 3, the elastic portion 15, and a plurality of through holes 11a as described above. Then, in the energy conversion device 1, the first cap portion 21 includes a plurality of through holes that communicate with the respective through holes 11a. 21a, the second cap portion 31 includes a plurality of through holes 31a that communicate with the respective through holes 11a. Further, the coupling member 9 is inserted into the through hole 21a, the through hole 11a, and the through hole 31a which are overlapped in the thickness direction of the vibration block 11. Thereby, the energy conversion device 1 can improve the ease of assembly.

Further, in the energy conversion device 1, the head portion 91a of the bolt 91 is located on the first cap portion 21 side, and the nut 92 is located on the second cap portion 31 side. In the through hole 21a of the first cap portion 21, the opening area of the vibrating block 11 on the side opposite to the through hole 11a side of the vibrating block 11 is appropriately enlarged so that the head portion 91a of the bolt 91 can be housed. Thereby, the energy conversion device 1 can reduce the amount of protrusion of the head portion 91a of the bolt 91 on the plane including the surface on the side opposite to the vibration block 11 side of the first cap portion 21. Therefore, the energy conversion device 1 can further improve the ease of operation, and when mounted on the mounting substrate 8, the height of the outer shape can be lowered, and the mounting becomes easier. In the energy conversion device 1, the head portion 91a of the bolt 91 may be located on the second cap portion 31 side, and the nut 92 may be located on the second cap portion 31 side.

In the energy conversion device 1 of the first modified example shown in FIGS. 23 and 24, the vibration block 11, the first spacer 41, and the second spacer 42 may be joined by a bonding agent or the like, and a bonding agent or the like may be used. The first spacer 41 and the first cap portion 21 and the second spacer 42 and the second cap portion 31 are joined to each other. Further, in the energy conversion device 1 according to the first modified example, the first cap portion 21, the first spacer 41, the vibration block 11, the second spacer 42, and the second cap portion 31 may be joined by bolts or the like. .

In the energy conversion device 1 according to the second modified example shown in Figs. 25A and 25B, the coupling member 9 is a metal rivet 94, and the axial end portion of the rivet 94 is plastically deformed to be able to block the through hole 31a. This point is different from the energy conversion device 1 of the second embodiment. The energy conversion device 1 according to the second variation embodiment includes the above-described input mechanism 5 (see FIG. 16).

In the rivet 94 of Fig. 25B, the head portion 94a is located on the first cap portion 21 side, and the deformed portion 94b which is plastically deformed at the shaft end portion is located on the second cap portion 31 side, but the position of the head portion 94a and the deformed portion 94b is also The opposite can be said. In addition, since the other components of the second modified embodiment are the same as those of the second embodiment, the description thereof is omitted.

When the shaft end portion of the rivet 94 is plastically deformed, for example, by a caulking tool or a caulking or the like, The end of the shaft can be plastically deformed. Further, depending on the material of the rivet 94, the shaft end portion of the rivet 94 may be irradiated with laser light to plastically deform the shaft end portion.

In the energy conversion device 1 of the second embodiment, since the coupling member 9 is the bolt 91, the bolt 91 is loosened. On the other hand, in the energy conversion device 1 of the second modified example, since the coupling member 9 is the rivet 94 and the axial end portion of the rivet 94 is plastically deformed, the reliability can be improved.

In the energy conversion device 1 of the third modified embodiment shown in Figs. 26A and 26B, the coupling member 9 is a metal pin 95, and the pin 95 is held by the U-shaped holding member 96. The energy conversion device 1 is different. In addition, since the other components of the third modified embodiment are the same as those of the second embodiment, the description thereof is omitted. The energy conversion device 1 according to the third modified embodiment includes the above-described input mechanism 5 (see FIG. 16).

The holding member 96 can be composed of, for example, a molded article of an elastic resin or the like. The holding member 96 preferably has a size capable of holding the stacked body of the first cap portion 21, the first spacer 41, the vibration block 11, the second spacer 42, and the second cap portion 31 from both sides in the thickness direction. .

In the third modified embodiment of the energy conversion device 1 of the second embodiment, the coupling member 9 is a bolt 91 as compared with the second embodiment, or the coupling member 9 is used as compared with the second modified embodiment. In the case of the rivet 94, the vibration block 11, the first cap portion 21, and the second cap portion 31 may be damaged due to factors such as an external force acting on the coupling member 9 during assembly. Sex.

The energy conversion device 1 of the fourth modified embodiment shown in Figs. 27A, 27B, and 28 has substantially the same basic configuration as that of the energy conversion device 1 of the second embodiment, but the vibration block 11 of the first cap portion 21 is provided. On the surface on the opposite side of the side, a plurality of sheets (two sheets in the example of the drawing) are provided with the spacer 60 differently. Each of the spacers 60 is electrically connected to the bonding member 9 , and the bonding member 9 is electrically connected to the first wiring 61 and the second wiring 62 . In addition, since the other components of the fourth modified embodiment are the same as those of the second embodiment, the description thereof is omitted. The energy conversion device 1 according to the fourth modified embodiment includes the above-described input mechanism 5 (see FIG. 16).

Each of the spacers 60 has a rectangular shape that is elongated in the longitudinal direction in a direction orthogonal to the predetermined direction, and corresponds to the through hole 21a through which the coupling member 9 connected to the first wiring 61 is inserted. The part is opened.

In the energy conversion device 1 of the fourth embodiment, the plurality of spacers 60 are provided on one surface side in the thickness direction of the vibration power generating device EH. Therefore, the vibration power generating device EH can be provided as in the fifth modified example shown in FIG. The bonding portion 80 made of a material such as a solder ball is attached to the mounting substrate 8. The energy conversion device 1 according to the fifth modified embodiment includes the above-described input mechanism 5 (see FIG. 16).

In FIG. 29, the spacer 60 is electrically connected to the patterned wiring layer (not shown) of the mounting substrate 8 via the bonding portion 80. The bonding portion 80 is not limited to the solder ball, and may be, for example, a conductive paste or a gold bump. In the energy conversion device 1 of the fifth modified embodiment, since the joint portion 80 constitutes the third wire 63 described in the second embodiment, it is not necessary to wind the wire as in the case of using the electric wire as the third wire 63. Increased ease of operation.

In the energy conversion device 1 of the fifth modified embodiment, a plurality of spacers 60 are provided on the surface on the opposite side of the vibration block 11 side of the first cap portion 21, but the invention is not limited thereto. The energy conversion device 1 may have a structure in which a plurality of spacers 60 are provided on the surface on the opposite side of the vibration block 11 side of the second cap portion 31.

Further, in the energy conversion device 1 of the fourth modified embodiment or the fifth modified embodiment, the joining member 9 described in the second modified example of the second embodiment or the third modified embodiment of the second aspect can be used. The bonding member 9 described in the example.

The energy conversion device 1 of the sixth modified embodiment has substantially the same basic structure as the energy conversion device 1 of the fourth modified embodiment, and as shown in Figs. 30 and 31, the vibration block 11 of the first cap portion 21 The point on the opposite side of the side is different from that of the DC circuit portion 73 (see FIG. 17). In addition, since the other components of the sixth modified embodiment are the same as those of the fourth modified embodiment, the description thereof will be omitted. The sixth The energy conversion device 1 according to the embodiment is provided with the above-described input mechanism 5 (see FIG. 16).

The DC circuit portion 73 is composed of a circuit board 73a composed of a double-sided printed wiring board, and a plurality of components 73b mounted on one surface side of the first board portion 21 side of the circuit board 73a. . In addition, the plural component part 73b is a component of the rectification smoothing circuit 71 described with reference to FIG. 17, for example, a component of the DC/DC converter 72, etc.

The outer shape of the circuit board 73a is set to be the same as the outer size of the first cap portion 21. Further, patterned conductor layers (conductor patterns) 73c and 73d electrically connected to the bonding member 9 are formed on the one surface side and the other surface side of the circuit board 73a, and the bonding member 9 and the first wiring 61 are formed. The second wiring 62 is electrically connected. Each of the conductor layers 73c, 73d is formed in substantially the same shape as the spacer 60.

An opening 73f that communicates with each of the through holes 21a of the first cap portion 21 is formed in the circuit board 73a. Then, in the energy conversion device 1 of the present embodiment, the bonding member 9 is also inserted into the circuit board 73a, and the gasket 98 is interposed between the circuit board 73a and the first cap portion 21. The washer 98 is provided as a spacer for securing a space in which the component 73b is housed between the circuit board 73a and the first cap portion 21. In the energy conversion device 1 of the sixth modified embodiment, the coupling member 9 connected to the first wiring 61 and the second wiring 62 also serves as the third wiring 63 described in the second aspect, so that it is not necessary to use a wire. Since the electric wire must be wound as in the case of the third wiring 63, the ease of operation is improved.

In the energy conversion device 1 of the sixth modified embodiment, since the DC circuit portion 73 is disposed on the side opposite to the vibration block 11 side of the first cap portion 21, a desired DC output can be obtained. Further, in the energy conversion device 1 of the sixth modified embodiment, it is possible to achieve miniaturization even when the DC circuit portion 73 and the vibration power generator EH are arranged side by side.

Further, in the energy conversion device 1 of the sixth modified embodiment, the conductor layer 73d is electrically connected to the wiring layer (not shown) of the mounting substrate 8 via the bonding portion 80 made of a material such as solder balls. The bonding portion 80 is not limited to the solder ball, and may be, for example, a conductive paste or a gold bump. On the mounting substrate 8, in addition to the input mechanism 5 described with reference to FIG. 16, for example, a reference map is further mounted. 17 components of the load 76 described above.

In the energy conversion device 1 of the sixth embodiment, the DC circuit portion 73 is disposed on the side opposite to the vibration block 11 side of the first cap portion 21, but the first cap portion 21 may be formed instead of the first cap portion 21. The structure of the DC circuit portion 73 is disposed on the side opposite to the vibration block 11 side of the cap portion 31.

Further, the energy conversion device 1 of the sixth modified embodiment may be the combination member 9 described in the second modification example of the second embodiment or the combination described in the third modification of the second embodiment. Member 9.

The energy conversion device 1 of the seventh modified embodiment has substantially the same basic structure as the energy conversion device 1 of the sixth modified embodiment. As shown in Fig. 32, the coupling member 9 is composed of a metal pin 95. One end portion of the longitudinal direction of 95 is different from the point where the first bonding portion 57 made of solder is bonded to the conductor layer 73d of the circuit board 73a. In addition, since the other components of the seventh modified embodiment are the same as those of the sixth modified embodiment, the description thereof will be omitted. The energy conversion device 1 of the seventh modified embodiment includes the above-described input mechanism 5 (see FIG. 16).

The pin 95 constituting the bonding member 9 is pressed into the circuit board 73a, the first cap portion 21, the first spacer 41, the vibration block 11, the second spacer 42, and the second cap portion 31. In addition, the other end portion of the pin 95 in the longitudinal direction may be electrically connected to the second wiring 62 by, for example, a second joint portion (not shown) made of a material such as solder or conductive paste.

In the energy conversion device 1 of the seventh modified embodiment, the DC circuit portion 73 is disposed on the side opposite to the vibration block 11 side of the first cap portion 21, as in the sixth modified embodiment, so that a desired DC can be obtained. Output. Further, in the energy conversion device 1 of the seventh modified embodiment, it is possible to achieve miniaturization even when the DC circuit portion 73 and the vibration power generator EH are arranged side by side.

In the energy conversion device 1 of the seventh embodiment, the DC circuit portion 73 is disposed on the side opposite to the vibration block 11 side of the first cap portion 21, but the first cap portion 21 may be formed instead of the first cap portion 21. The structure of the DC circuit portion 73 is disposed on the side opposite to the vibration block 11 side of the cap portion 31.

(Implementation 3)

The energy conversion device 1 of the present embodiment has substantially the same basic structure as the energy conversion device 1 of the second embodiment, and the coils of the first coil block 4A and the second coil block 4B are as shown in FIG. 4a is a pattern coil which is different. In addition, since other components are the same as Embodiment 2, description is abbreviate|omitted.

As the material of the pattern coil, for example, copper, gold, silver, or the like can be used. In addition, the material of the pattern coil may also be a high magnetic alloy, a cobalt-based amorphous alloy, or a ferrite iron. The pattern coil can be formed, for example, by patterning a metal foil (copper foil) of a printed substrate. Further, the pattern coil can be formed by a thin film forming technique such as a vapor deposition method or a sputtering method, a lithography technique, an etching technique, or the like.

In the energy conversion device 1 of the present embodiment, the first cap portion 21 is composed of a first multilayer printed wiring board, and each coil 4a is composed of a pattern coil, and the pattern coil is formed by the first multilayer printed wiring. The plate is formed by a patterned conductor layer (conductor pattern).

Further, in the energy conversion device 1 of the present embodiment, the second cap portion 31 is composed of a second multilayer printed wiring board, and each coil 4a is composed of a pattern coil, and the pattern coil is formed by the second multilayer. The printed wiring board is formed by a patterned conductor layer (conductor pattern).

In the energy conversion device 1 of the present embodiment, since the first wiring 61 is composed of the wiring layer of the first multilayer printed wiring board, the operation convenience can be further improved.

Further, in the energy conversion device 1 of the present embodiment, since the second wiring 62 is composed of the wiring layer of the second multilayer printed wiring board, the operation convenience can be further improved.

Further, in the energy conversion device 1 of the present embodiment, the bonding member 9 described in the second modified embodiment of the second embodiment or the bonding member described in the third modified embodiment of the second embodiment can be used. 9.

2‧‧‧ Magnet

3‧‧‧Magnetic block

4‧‧‧ coil block

4A‧‧‧1st coil block

4B‧‧‧2nd coil block

4a‧‧‧ coil

4b‧‧‧ core material

10‧‧‧Substrate

11‧‧‧Vibration block

12‧‧‧movable department

12c‧‧‧ sloped surface

13‧‧‧ movable body

14‧‧‧Support Department

15‧‧‧ Elastomers

21‧‧‧1st cap

21c‧‧‧through hole

31‧‧‧2nd cap

31c‧‧‧through hole

41‧‧‧1st spacer

H1‧‧‧Width size

EH‧‧‧Vibration power generation unit

Claims (17)

An energy conversion device comprising: a magnet block having a magnet; and a coil block having a coil; the magnet block and the coil block being oppositely disposed in a facing direction; using the magnet block and the coil The electromagnetic induction generated by the relative displacement of the block in a specified direction orthogonal to the opposite direction converts the kinetic energy into electrical energy; the energy conversion device is characterized by: a movable portion having the magnet block and the coil block One of the support portions; the elastic portion that connects the movable portion to the support portion; the input mechanism for displacing the movable portion along the specified direction; and the first magnetic material portion that is coupled to the movable portion; And a second magnetic material portion connected to the input mechanism; the energy conversion device displaces the movable portion by a magnetic force generated between the first magnetic material portion and the second magnetic material portion. The energy conversion device according to claim 1, wherein the first magnetic material portion is composed of a first magnetic material or a first magnetic material, and the second magnetic material portion is composed of a second magnetic material or a second magnetic material. Made up of magnets. The energy conversion device according to claim 1 or 2, wherein the direction of the magnetic force is a direction in which the first magnetic material portion and the second magnetic material portion are attracted to each other. The energy conversion device according to claim 1 or 2, wherein the support portion or the movable portion is provided with a stopper structure for restricting a displacement amount of the movable portion in the specified direction to a predetermined value. An energy conversion device according to item 4 of the patent application, wherein The support portion has mutually opposite end faces, and the stop structure is formed by both end faces of the support portion, and the end faces are farther from the movable portion in a direction orthogonal to the specified direction in the specified direction. The movable portion has two inclined surfaces which are inclined so as to gradually decrease in distance. When the movable portion is displaced by the predetermined value in the predetermined direction, the two inclined surfaces can be in surface contact with the both end surfaces. The energy conversion device of claim 4, wherein the stop structure is disposed on the same line as the input mechanism in the specified direction. The energy conversion device according to claim 1 or 2, wherein the first magnetic material portion and the movable portion are connected to each other via a spring. The energy conversion device according to claim 1 or 2, wherein the second magnetic material portion and the input mechanism are connected to each other via a spring. The energy conversion device according to claim 1 or 2, wherein the support portion includes a third magnetic material portion, and the third magnetic material portion is located at a position where the second magnetic material portion adsorbs the first magnetic material portion The second magnetic material portion is adsorbed. The energy conversion device of claim 1 or 2, further comprising a vibration block having the magnet block vibrating in the specified direction; the vibration block comprising: the movable portion having the magnet a block; the support portion; and the elastic portion; the number of the coil blocks is two, and the two coil blocks are composed of the following blocks: a first coil block, in the vibration block The first surface side in the thickness direction is opposite to the magnet block; The second coil block faces the magnet block on the second surface side in the thickness direction of the vibrating block; the energy conversion device further includes: a first cap portion disposed in the vibrating block Holding the first coil block on the first surface side; the second cap portion is disposed on the second surface side of the vibrating block, and holds the second coil block; and a plurality of bonding members, The first cap portion, the vibrating block, and the second cap portion are penetrated; the bonding member is electrically conductive, and the first wire connected to the first coil block is connected to the second coil block The second wiring is electrically connected to the bonding member. The energy conversion device according to claim 10, wherein the vibration block includes a plurality of through holes penetrating through the support portion in the thickness direction; and the first cap portion is provided to penetrate through the thickness direction And a plurality of first holes that communicate with the respective through holes; the second cap portion includes a plurality of second holes that are continuous in the thickness direction and communicate with the through holes, and the coupling member is inserted The first hole, the through hole, and the second hole that overlap in the thickness direction. The energy conversion device according to claim 10, wherein each of the coils of the first coil block and the second coil block is a wound coil. The energy conversion device according to claim 10, wherein each of the coils of the first coil block and the second coil block is a pattern coil. The energy conversion device according to claim 10, wherein the vibration side of the one of the first cap portion and the second cap portion is opposite to the side of the vibration block The surface is provided with a gasket electrically connected to the bonding member electrically connected to the first wiring and the second wiring. The energy conversion device according to claim 10, wherein a DC circuit portion is disposed on a side opposite to the vibration block side of one of the first cap portion and the second cap portion, and the DC circuit is provided The portion converts the AC output between the first wiring member and the two bonding members electrically connected to the second wiring into a desired DC output. The energy conversion device according to claim 10, wherein the bonding member is a bolt and has a nut that is screwed to a front end portion of the bolt. The energy conversion device of claim 10, wherein the bonding member is a rivet, and the shaft end portion of the rivet is plastically deformed.