JP4588801B2 - Power generator - Google Patents

Description

  The present invention relates to a power generator using a piezoelectric element.

  Conventionally, power generation methods using a piezoelectric element, such as power generation, wind power generation, and solar power generation, are known. These are generally referred to as eco power generation because they are generally environmentally friendly power generation methods. These power generation methods are beginning to become popular in our society, as environmental issues are attracting attention as they are today.

  In recent years, tools for obtaining information in daily life have been increasing due to mobile phones and terminal devices using the Internet.

JP 2004-282915 A

  However, these power generation methods have advantages and disadvantages for each power generation method. Disadvantages include, for example, in power generation using piezoelectric elements, power is generated by applying external force to the piezoelectric elements in some way. In general, piezoelectric elements are fragile materials and have low durability and power generation. The amount is small. In the case of wind power generation, small wind power generation with a small installation area is widely used in towns, but the power generation amount is small because it is small. In solar power generation, it is necessary to secure a large area for installation, and it is desirable that the location is also a place where maintenance of the solar cell is easy to be performed. Furthermore, these power generations are based on the premise that power is applied from the outside to the piezoelectric element when generating electricity, wind is blowing in wind power generation, and light is generated in solar power generation. The amount of power generation greatly depends on changes in the surrounding environment where each generator is installed.

  Also, in recent years, mobile phones and terminal devices using the Internet, which are one of the main tools for obtaining information in daily life, require power. If the battery runs out or a power failure occurs during a disaster such as a typhoon or lightning, these terminal devices cannot be used unless power is supplied in some way. However, power can be supplied to these electronic devices, and they can be quickly moved and used for long-term power generation regardless of the installation location in the event of an emergency such as a typhoon or lightning. There is no power generator. In addition, it is possible to permanently install a completely self-powered terminal device that provides services such as providing power that can be used on a daily basis and providing information such as surrounding maps and weather, assuming use in the event of a disaster such as a typhoon or lightning. It is very convenient for businessmen and tourists who are expected to use the system. The spread of the power information provision terminal device will contribute to the spread of various services in the future IT and ubiquitous society. The spread of such terminal devices is already desired among IT and ubiquitous researchers and engineers.

  The present invention has been made in view of such problems. The object of the present invention is to solve the problems such as the amount of power generation and durability mentioned above in power generation using a piezoelectric element, By using these power generations comprehensively, it is possible to perform stable power generation corresponding to changes in the place where the power generation device is installed and the surrounding environment, and stable power generation by this power generation device. To provide an offer.

The present invention has been made to solve such a problem, and the present invention described in claim 1 includes a pair of cushioning materials arranged in parallel with a distance from each other, and the pair of cushioning materials. A plurality of sets of diaphragms and piezoelectric elements arranged between each other, and a first axis and a second axis arranged between the pair of cushioning materials, wherein the piezoelectric elements are at least one side of the diaphragm bonded at a position other than the periphery of the diaphragm in each of said plurality of sets of the vibration plate and the piezoelectric element, so as to be parallel to the pair of the cushioning material, and, as polymerized to each other The first shaft extends from one of the pair of cushioning materials to the periphery of the plurality of diaphragms and piezoelectric elements , and is disposed to support the periphery of the plurality of diaphragms ; and Arranged to form a space between the other of the pair of cushioning materials The second shaft extends from the other of the pair of shock absorbers to the vibration plate and the piezoelectric element closest to the other of the shock absorbers in the plurality of sets of vibration plates and piezoelectric elements. is arranged a piezoelectric element so as to support in its central position, one of the pair of buffer material, when subjected to an external force in a direction toward the other of said pair of cushioning material, the plurality over the first shaft The external force is transmitted to the periphery of the diaphragm, and the piezoelectric element and the diaphragm are warped around the second axis to generate power by deforming the piezoelectric element.

  According to the present invention configured as described above, an increase in the amount of power generated by the piezoelectric element and an improvement in the durability thereof, an effect of simplifying the production of the power generation apparatus using the piezoelectric element and reducing the production cost are obtained. be able to.

It is the partial cross section figure and perspective view which show the electric power generation part of the electric power generating apparatus about the 1st Embodiment of this invention. It is the partial cross section figure and perspective view which show the electric power generation part of the electric power generating apparatus in connection with the 1st Embodiment of this invention. It is a top view which shows arrangement | positioning and a shape of the axis | shaft which supports a piezoelectric element. It is a partial cross section figure which shows the electric power generation part of the electric power generating apparatus about the 2nd Embodiment of this invention. It is a perspective view showing a power generator using a piezoelectric element, and a top view showing arrangement of a piezoelectric element in a power generator. It is a partial cross section figure when the electric power generation part of the electric power generating apparatus using a piezoelectric element is made into the laminated structure. It is a perspective view which shows the electric power generating apparatus about the 3rd Embodiment of this invention. It is the perspective view and sectional drawing which show the electric power generating apparatus about the 4th Embodiment of this invention. It is the perspective view and sectional drawing which show the electric power generating apparatus about the 5th Embodiment of this invention. It is sectional drawing and perspective view which show the electric power generating apparatus about the 6th Embodiment of this invention. It is a perspective view which shows the electric power generating apparatus about the 7th Embodiment of this invention. It is a perspective view which shows the terminal device about the 8th Embodiment of this invention.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. The piezoelectric element generates electricity by being deformed by an applied pressure. Generally, a piezoelectric element is easily cracked when the pressure applied to increase the power generation amount is increased.

In FIG. 1, the electric power generating apparatus about the 1st actual condition form of this invention is shown. The piezoelectric element 11 is made of, for example, piezoelectric material such as barium titanate, zirconia (ZrO ₂ ), or a piezoelectric single crystal such as lithium tantalate (LiTaO ₃ ) as a piezoelectric material, and as shown in FIG. The piezoelectric element 11 has a structure joined to the diaphragm 12. In this structure, the diaphragm 12 also functions as a reinforcing plate that makes the piezoelectric element 11 difficult to break. Since the piezoelectric element 11 and the diaphragm 12 are supported by the shaft 13a at the center of the piezoelectric element 11 and supported by the shaft 13b around the diaphragm 12, the piezoelectric element 11 and the diaphragm 12 remain in that position even when an external force is applied. The shaft 13a is joined to a buffer material 14a made of wood, polyethylene, rubber or the like, and the shaft 13b is joined to a buffer material 14b made of wood, polyethylene, rubber or the like. The structure shown in FIG. 1A is a basic structure of a power generator using a piezoelectric element. As shown in FIG. 1B, when the power generation device having the structure of FIG. 1A is applied with a pressure P (in this case, a pressure from above) as shown in FIG. The piezoelectric element 11 generates electric power by being deformed like the piezoelectric element 11a. Since this structure uses the lever principle, the piezoelectric element 11 can be efficiently deformed, and as a result, power generation due to deformation of the piezoelectric element 11 is also efficiently performed.

  At this time, in order to prevent the deformed piezoelectric element 11a from being excessively deformed and damaged, the piezoelectric element 11a is protected by having a stopper 15 acting as a stopper at the tip of the shaft 13b. With this structure, power generation using the piezoelectric element can be stably performed. At this time, for example, when the diaphragm 12 and the piezoelectric element 11a are deformed without completely joining the diaphragm 12 to the shaft 13b as shown by the gap O1 in FIG. 1B, the deformation is not hindered. A gap (a part of “play”) may be formed.

  For example, in a case where a piezoelectric element with a diameter of 2.5 cm and a thickness of 200 μm is joined to a vibration plate with a diameter of 4.0 cm and a thickness of 200 μm, the shaft supporting the center of the piezoelectric element has a diameter of 0.5 cm and is high. It is preferable that the stopper at the end of the shaft that supports the periphery of the diaphragm be 0.15 cm thick.

  FIG. 1C1 is a view of the structure of FIG. FIG. 1C2 is a view of the structure of FIG. In addition to the case where the piezoelectric element 11 is bonded to only one surface of the diaphragm 12, the piezoelectric element 11 may be bonded to both surfaces of the diaphragm 12, as shown in FIGS. 1 (c1) and 1 (c2). Furthermore, the piezoelectric element and the diaphragm may have a shape other than a circle. For example, the shape of the piezoelectric element and the diaphragm may be a triangular shape such as a triangle or a quadrangle, or may be an elliptical shape. The piezoelectric element and the diaphragm may be shaped so as to warp as a whole. As shown in FIG. 2 (a), the warping at this time may be such that the periphery of the piezoelectric element and the diaphragm is warped on the opposite side of the surface on which the shaft 13a is located, with the shaft 13a as the center. If it does in this way, there exists an effect which the electric power generation of a piezoelectric element increases. On the other hand, as shown in FIG. 2 (b), the periphery of the piezoelectric element and the diaphragm around the shaft 13a may be warped on the same side as the surface on which the shaft 13a is located. This has the effect of increasing the strength of the piezoelectric element.

  FIG. 1 (d1) gives an example of a diagram in which the structure of FIG. 1 (a) when the piezoelectric element and the diaphragm are rectangular is viewed from obliquely below. Similarly, FIG. 1 (d2) gives an example of a diagram in which the structure of FIG. 1 (a) when the piezoelectric element and the diaphragm are rectangular is viewed from obliquely above. In this case, the shapes of the shaft 13a and the shaft 13b may be as shown in FIG.

  The number of shafts 13b may be adjusted by the force necessary to support the periphery of the diaphragm 12. FIGS. 1 (c1) and (c2) are examples in which three shafts 13b are used. However, when the pressure applied to the power generator is increased and when the applied pressure is expected to increase, the shaft as shown in FIG. 2 (c1) is used. It is preferable to use three or more 13b. If necessary, the shaft 13b may be entirely surrounded by the diaphragm 12 as shown in FIG. Of course, when the pressure applied to the power generator is reduced and when the applied pressure is expected to be reduced, the number of shafts 13b used may be three or less.

  FIG. 2D is an example in which the structure of FIG. 1A is arranged side by side, and the first embodiment of the present invention can be as shown in FIG.

  FIG. 3 shows the arrangement and shape of the shaft 13 a that supports the piezoelectric element 11. 3 (a), (b), (c), (d), (e), (f), (g), (h), the shaft 13a is on a line passing through the center of the piezoelectric element 11. The arrangement of at least one or more and the shape of the shaft 13a is a solid shape such as a cylindrical shape or a quadrangular prism. By doing so, it is possible to efficiently deform the piezoelectric element against a pressure change caused by an external force. The shaft 13a may be made of an elastic material such as rubber or plastic so as to function as a shock absorber.

  In FIG. 4, the electric power generating apparatus about the 2nd Embodiment of this invention is shown. The piezoelectric element 18 joined to the diaphragm 19 is supported by a shaft 13c, and the adjacent piezoelectric element 18 and diaphragm 19 are connected by the diaphragm 17 as shown in FIG. 4A. . With this structure, the diaphragm 17 transmits the pressure change caused by the external force (pressure change from above in the case of FIG. 4A) to the diaphragm 19 and the piezoelectric element 18 to deform the piezoelectric element 18 to generate electric power. It becomes possible. At this time, stoppers for preventing excessive deformation of the piezoelectric element 18 include a stopper 16a joined to the diaphragm 19 and a stopper 16b joined to the shock absorber 20a as shown in FIGS. 4 (a) and 4 (b). It is set as the structure which has. Of course, in this structure, the stopper 16a and the stopper 16b can have a structure having only one of them by increasing the thickness.

  Fig.5 (a) is an example of the whole figure of the electric power generating apparatus 20 using the piezoelectric element which has a structure shown to FIGS. 1-4 (a), (b). The arrangement of the piezoelectric elements inside the power generation apparatus using the piezoelectric elements shown in FIG. 5A is shown in FIGS. 5B and 5C. As shown in FIGS. 5 (b1) and 5 (b2), in the circular piezoelectric element 11c, each piezoelectric element is preferably arranged at the intersection when equilateral triangles are arranged without gaps in order to increase the arrangement density in an arbitrary area. As shown in FIGS. 5 (c1) and (c2), in the rectangular piezoelectric element 11r, each piezoelectric element has a set of two piezoelectric elements arranged in a square in order to increase the arrangement density in an arbitrary area. As described above, the squares may be arranged so as to be rotated by 90 degrees and spread. Such an arrangement not only allows the piezoelectric elements to be spread as much as possible in an arbitrary area, but also when the direction of the external force to be applied is other than the direction perpendicular to the buffer material 14b, for example, a pressure change from an oblique direction. However, it is also possible to suppress the decrease in power generation efficiency due to the piezoelectric element 11 and generate power that can expect the same power generation amount as the piezoelectric change from the vertical direction.

FIGS. 6A and 6B show a plurality of piezoelectric elements 11 built in the power generator in the power generator having the structure shown in FIGS. 1 to 5 in order to increase the power generation amount of power generation using the piezoelectric elements. The structure in the case of stacking is shown. At this time, the gap O2 may be formed by supporting the periphery of the diaphragm 12 with the shaft 13c so that the external force is not easily transmitted by overlapping the piezoelectric elements 11.
In FIG. 7, the electric power generating apparatus about the 3rd Embodiment of this invention is shown. A power generation device 21 using a piezoelectric element is a power generation device having the structure shown in FIGS. 1 to 6, and includes a shaft 22 and a bearing 23 that connect the power generation devices 21 arranged side by side. By adopting such a structure, the shaft 22 is rotated and moved in the bearing 23, so that the arranged power generators 21 are folded and rounded to change from the state shown in FIG. 7A to FIG. 7B1. And it becomes possible to change to the state shown in FIG. The structure for connecting the adjacent power generators 21 arranged side by side may be constituted by a shaft 24 and a bearing 25 as shown in FIG. In the case of adopting such a structure, the arranged power generators 21 can be deformed into the state shown in FIG. 7 (d1) and FIG. 7 (d2) by folding and rounding. Progress of deformation of power generation device 21 (from the state shown in FIG. 7A to the state shown in FIG. 7B1 and from the state shown in FIG. 7C to the state shown in FIG. 7D1) The deformation process is shown in FIGS. 7 (e) and 7 (f).

  The structures shown in FIGS. 1 to 7 can be simplified in a power generation apparatus using a piezoelectric element by having these structures, which leads to a reduction in manufacturing cost.

  In FIG. 8, the electric power generating apparatus about the 4th Embodiment of this invention is shown. The power generation device 31 is a power generation device using a piezoelectric element, and the power generation device 31 may be a power generation device having the structure of the power generation device 21, and a solar cell 32 and a Peltier element or the like on at least one surface of the power generation device 31. This is a power generation device having a solar power generation device such as a temperature difference power generation device 33 using a Seebeck element or the like. As shown in FIGS. 8A, 8 </ b> B, and 8 </ b> C, the solar cell 32 and the temperature difference power generation device 33 are covered with a transparent resin 34 such as hard glass or hard vinyl chloride. It is not affected by the change and is in a sealed state. This structure also has the effect of preventing deterioration and waterproofing of the solar cell 32 and the temperature difference power generation device 33. Therefore, the structure has excellent durability.

  In FIG. 9, the electric power generating apparatus about the 5th Embodiment of this invention is shown. The power generation device 41 is a power generation device using a piezoelectric element. The power generation device 41 may be a power generation device having the structure of the power generation device 21, and a light emitting diode 42 or a liquid crystal panel 43 is provided on at least one surface of the power generation device 41. A power generation device having a display function such as an organic EL 44, an electric bulletin board 45, etc., and having a computer 46 that can be connected to the Internet and has a function of processing information such as characters, images, images, and sounds displayed on these displays Device. As shown in FIGS. 9A and 9B, the light emitting diode 42, the liquid crystal panel 43, the organic EL 44, and the electric bulletin board 45 are covered with a transparent resin 47 such as hard glass or hard vinyl chloride. It is not affected by the pressure change and is in a sealed state. This structure also has the effect of preventing deterioration and waterproofing of the light emitting diode 42, the liquid crystal panel 43, the organic EL, and the electric bulletin board 44. Therefore, the structure has excellent durability.

  In FIG. 10, the electric power generating apparatus about the 6th Embodiment of this invention is shown. The power generation device 51a is a wind power generation device using a vertical axis windmill 52, and the vertical axis windmill 52 is composed of, for example, a Savonius type windmill or a Darius type windmill, and as shown in FIG. Covered by the device 53a. In this way, by collecting wind power at the wind power entrance E, the vertical axis wind turbine is not affected by the wind force (force that impedes rotation of the vertical axis wind turbine 52) by being applied only to the wings on one side of the vertical axis wind turbine 52. 52 can be rotated. Furthermore, as shown in FIG. 10B, the power generation device 51b receives resistance due to wind force by covering the vertical axis wind turbine 52 with the wind power induction device 53b so that the wind force is applied only to the wings on one side of the vertical axis wind turbine 52. Instead, the vertical axis wind turbine 52 can be rotated. As shown in FIG. 10D, the vertical axis wind turbine 52 can increase the amount of power generation by arranging a plurality of vertical axis wind turbines 52 vertically. The overall images of the power generation device 51a and the power generation device 51b are shown in FIG. 10 (c) and FIG. 10 (e), respectively. The directions of the power generation device 51a and the power generation device 51b can be changed by having the rotation shaft 54a and the rotation shaft 54b, respectively, and rotating according to the wind direction depending on the shape of the wind guidance device 53a and the wind guidance device 53b.

  In FIG. 11, the electric power generating apparatus about the 7th Embodiment of this invention is shown. FIG. 11A shows a power generation device using a piezoelectric element that generates electric power by utilizing the force of vibration, and the piezoelectric element 61a joined to the diaphragm 61b has a right angle as shown in FIG. 11D1. Are joined to a base 64 with a weight of rubber, lead or the like joined to the end of the diaphragm 63a. FIG. 11B shows a power generation device using a piezoelectric element that generates power by utilizing the force of vibration. The piezoelectric element 61a joined to the diaphragm 61b has a curved line as shown in FIG. 11D2. The diaphragm 63b is joined to the base 64 in a state in which a weight of rubber, lead or the like is joined to the end of the diaphragm 63b. As shown in FIG. 11 (d3), the diaphragm bonded to the piezoelectric element 61a may be bent so as to have an angle of 45 degrees as the diaphragm 63c. By doing so, the vibration by the external force shakes the weight 62a, and the movement is transmitted to the diaphragms 63a, 63b and 63c, so that the piezoelectric element 61a can generate electric power. At this time, the diaphragm 62a, the diaphragm 63b, and the diaphragm 63c are bent by using the movement of the weight 62a in all directions such as the vertical direction, the horizontal direction, and the oblique direction, thereby utilizing the “twist” movement. 63a, the diaphragm 63b, and the diaphragm 63c can be transmitted. At that time, the vibration 63a and the vibration plate 63b and the base 64 are shifted so as not to face the piezoelectric element 61a so as to face each other, so that the movement of “twist” can be efficiently transmitted to the piezoelectric element 61a. FIG. 11C shows a power generation device using a piezoelectric element that generates electric power by utilizing the force of vibration. It is also possible to generate electric power by receiving wind by changing the weight 62a to the wing 62b. Then, the number of diaphragms 63a, 63b, and 63c joined to the piezoelectric element 61a can be two or more. An example of this is shown in FIG. When it is not necessary to transmit all the movements of the weight 62a and the weight 62b in the structure shown in FIG. 11, the diaphragms 63a, 63b, and 63c may be straight lines. Further, by changing the lengths of the diaphragms 63a and 63b and 63c, it is possible to adjust so as to resonate with respect to the movement of weights having various vibration frequencies.

  FIG. 12 shows a terminal apparatus according to the eighth embodiment of the present invention. The power information provision terminal device 71 is a movable installation type terminal device, and includes a charging device 72 of a small electronic device such as a mobile phone, a PHS, a personal computer, a portable information terminal, a display device 73, a wireless LAN, a MAN, A terminal device having a function of supplying power and providing information by having a computer 74 that can be connected to the Internet by a communication function such as WAN. The power information supply terminal device 71 includes a power storage device that charges power generated by at least one power generation device of the power generation devices shown in FIGS. 1 to 11, and a mobile phone that operates using the power supplied from the power storage device. Power supply and information provision by having a charging device 72 for small electronic devices such as PHS, personal computers, personal digital assistants, etc., a display device 73, and a computer 74 that can be connected to the Internet through communication functions such as wireless LAN, MAN, WAN, etc. By using a terminal device having a function of performing power supply, it is possible to supply and provide power and information by eco-friendly eco power generation. FIG. 12A is an example of an overall view of the power information provision terminal device 71. The display device 73 may have a touch panel function. It is also possible to install the power information provision terminal device 71 using the solar battery 75a and the manual generator 75b as an auxiliary power source. In addition, as an application, for example, the power generation device 21 to which the wireless device 77 and the computer 74 are attached can be used as the pressure sensing device 76 for sensing movement information of a person or a vehicle. This is because information on the traffic volume at each point is obtained from the power generation frequency and power generation amount by installing the pressure sensing device 76 at the location where you want to grasp the surrounding conditions when commuting rush and traffic congestion are organized. It is useful to be able to organize traffic efficiently by wireless communication.

  The power information provision terminal device 71 is a movable installation type terminal device, and includes a charging device 72 of a small electronic device such as a mobile phone, a PHS, a personal computer, a portable information terminal, a display device 73, a wireless LAN, a MAN, A terminal device having a function of supplying power and providing information by having a computer 74 that can be connected to the Internet by a communication function such as WAN. The power information supply terminal device 71 includes a power storage device that charges power generated by at least one power generation device of the power generation devices shown in FIGS. 1 to 11, and a mobile phone that operates using the power supplied from the power storage device. Power supply and information provision by having a charging device 72 for small electronic devices such as PHS, personal computers, personal digital assistants, etc., a display device 73, and a computer 74 that can be connected to the Internet through communication functions such as wireless LAN, MAN, WAN, etc. By using a terminal device having a function of performing power supply, it is possible to supply and provide power and information by eco-friendly eco power generation. FIG. 12A is an example of an overall view of the power information provision terminal device 71. The display device 73 may have a touch panel function. It is also possible to install the power information provision terminal device 71 using the solar battery 75a and the manual generator 75b as an auxiliary power source. In addition, as an application, for example, the power generation device 21 to which the wireless device 77 and the computer 74 are attached can be used as the pressure sensing device 76 for sensing movement information of a person or a vehicle. This is because information on the traffic volume at each point is obtained from the power generation frequency and power generation amount by installing the pressure sensing device 76 at the location where you want to grasp the surrounding conditions when commuting rush and traffic congestion are organized. It is useful to be able to organize traffic efficiently by wireless communication.

(Appendix)
The invention described in appendix 1 is a power generation device that generates power by pressure fluctuation generated when an object such as a person or a vehicle moves, and can generate power without damaging the piezoelectric element even when strong pressure fluctuation occurs. It has a stopper for preventing excessive deformation of the piezoelectric element.

  In the invention described in Appendix 2, the generator described in Appendix 1 includes a diaphragm for efficiently transmitting pressure fluctuation caused by the movement of an object to the piezoelectric element and a shaft that supports the piezoelectric element and receives pressure fluctuation. It has a structure with one surface.

  The invention according to appendix 3, in which the shaft according to appendix 2 has at least one axis on a line passing through the center of the piezoelectric material.

  The invention described in appendix 4 is a power generation device using a piezoelectric element that generates power by pressure fluctuation caused by the movement of an object, and is a power generation device having a front mechanism so that a plurality of piezoelectric materials are not displaced. A power generation device characterized by having a structure that increases the amount of power generation by stacking by supporting and storing the periphery thereof.

  The invention described in appendix 5 has a structure in which a small power generator having a front mechanism is arranged and a shaft and a bearing connecting them are attached to each other so that the whole power generator can be folded and rolled, and is movable. A power generator characterized by the above.

  The invention described in appendix 6 is a power generation device using a piezoelectric element that generates electric power by pressure fluctuation caused by the movement of an object, and the surface is covered with a transparent resin such as hard glass or hard vinyl chloride on at least one surface. A power generator having a solar cell and a temperature difference power generator for generating power by solar energy with increased strength.

  The invention according to appendix 7 is a power generation device using a piezoelectric element that generates power by pressure fluctuation caused by the movement of an object, and the surface is covered with a transparent resin such as hard glass or hard vinyl chloride on at least one surface. It is a power generation device having a display function such as a light emitting diode, a liquid crystal panel, an organic EL, an electric bulletin board, etc. with increased strength, and has a function of processing information such as characters, images, images and sounds displayed on these displays A power generation apparatus having a computer connectable to the Internet.

  The invention described in appendix 8 is a wind power generator in which at least one vertical axis wind turbine is vertically stacked, and has a wind power induction device that covers the power generator on the outside and rotates in accordance with the wind direction. A power generation device characterized by improving the collection capability and eliminating resistance that impedes rotation of a wind turbine by wind power.

  The invention according to appendix 9 is a power generation device using a piezoelectric element that generates power by a vibration force, and a piezoelectric element in which a diaphragm bent at least at one or more angles is joined around a piezoelectric material The piezoelectric element generator according to claim 1, wherein the piezoelectric element generates electric power by resonating at vibration frequencies in a vertical direction, a horizontal direction, and an oblique direction by having a diaphragm and a weight joined to the diaphragm.

  The invention according to appendix 10 is a mobile power information provision terminal device that is movable, and includes a charging device for a small electronic device such as a mobile phone, a PHS, a personal computer, and a personal digital assistant, a display function, a wireless LAN, and a MAN A power information providing terminal device having a function of supplying power and providing information by having a computer connectable to the Internet by a communication function such as WAN.

  The invention described in Supplementary Note 11 is a movable installation-type power information provision terminal device, and includes Supplementary Note 1, Supplementary Note 2, Supplementary Note 3, Supplementary Note 4, Supplementary Note 5, Supplementary Note 7, Supplementary Note 8, Supplementary Note 9 or Supplementary Note 9. A power storage device that charges power generated by all or part of the power generation device described in any one of the above, and a small electronic device such as a mobile phone, a PHS, a personal computer, or a portable information terminal that operates using the power supplied from the power storage device Power supply terminal device having a function of supplying power and providing information by having a computer that can be connected to the Internet with a display function and a communication function such as a wireless LAN, MAN, and WAN The present invention relates to a power generation system that is used comprehensively.

(Additional effects)
According to the present invention configured as described above, it is possible to increase the power generation amount of an eco power generation device such as power generation by a piezoelectric element, wind power generation or solar power generation and to improve the durability thereof, and Simplifies manufacturing, reduces manufacturing costs, and has a computer that can connect to the Internet and a display function for these power generators, as well as ease of movement and installation, so it can handle changes in the surrounding environment. Stable power supply and information provision.

  By installing power information provision terminal devices at stations, convenience stores, parks, etc., it is possible to charge small electronic devices such as mobile phones and digital cameras on a daily basis, so these devices can be used without worrying about the remaining battery level. It can be used, and it can be used as a disaster prevention measure because it can be quickly moved regardless of where it is installed in the event of an emergency such as a power failure due to a typhoon or lightning, and it can generate electricity for a long time. Furthermore, it is very convenient for businessmen and tourists who are expected to use a permanent self-powered terminal device that provides information such as daily power supply and demand, maps of surroundings, and weather information. The spread of such power information provision terminal devices is expected to contribute to the spread of various service provisions in the future IT and ubiquitous society.

  At present, there is a great demand in the advertising industry for using unprecedented technology for advertising. Because it is generally important to first notice in advertising. On the other hand, new and unprecedented technologies and things are likely to attract attention, so we want to use them for advertisements, especially as a commercial medium in the city. Therefore, since the power information supply terminal device can have various display devices as an application, it can be industrially used as a new advertising medium.

11, 11a, 18, 61a Piezoelectric element 12, 17, 19, 61b, 63a, 63b, 63c Diaphragm 13a, 13b, 13c Shaft 14a, 14b, 20a, 20b Buffer material 15, 16a, 16b Stopper 20, 21, 31 , 41, 51a, 51b Power generation device 22, 24 Shaft 23, 25 Bearing 32, 75a Solar cell 33 Temperature difference power generation device 34, 47 Resin 42 Light emitting diode 43 Liquid crystal panel 44 Organic EL
45 Electric Bulletin Board 46, 74 Computer 52 Vertical Axis Windmill 53a, 53b Wind Induction Device 54a, 54b Rotating Shaft 62a Weight 62b Wing 64 Base 71 Power Information Providing Terminal Device 72 Charging Device 73 Display Device 75b Manual Generator 76 Pressure Sensing Device 77 Wireless device

Claims (1)

A pair of cushioning materials arranged side by side at a distance from each other;
A plurality of sets of diaphragms and piezoelectric elements disposed between the pair of cushioning materials;
A first shaft and a second shaft disposed between the pair of cushioning materials,
The piezoelectric element is bonded to a position other than the periphery of the diaphragm on at least one side of the diaphragm ,
Each of the plurality of sets of the diaphragms and the piezoelectric elements is arranged so as to be parallel to the pair of buffer materials and to be superposed on each other,
The first shaft extends from one of the pair of buffer materials to the periphery of the plurality of sets of diaphragms and piezoelectric elements , and is arranged to support the periphery of the plurality of diaphragms. Arranged to form a space between the other of the materials,
The second axis extends from the other of the pair of shock absorbing materials to the vibration plate and the piezoelectric element closest to the other of the shock absorbing materials among the plurality of sets of vibration plates and piezoelectric elements. Is arranged to support at its center position,
When one of the pair of buffer materials receives an external force in a direction toward the other of the pair of buffer materials, the external force is transmitted to the periphery of the plurality of diaphragms via the first shaft, and the piezoelectric element And the periphery of the diaphragm is warped about the second axis as a fulcrum, whereby the piezoelectric element is deformed to generate electric power,
Power generation device.

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