JP6539796B1 - Power generator and portable personal computer - Google Patents

Abstract

The present invention provides a power generation device capable of charging an electronic device having a charging unit by a simple manual operation. A power generation device (20) has flexibility and a substrate (22) partially fixed to an electronic device, a sheet-like piezoelectric member (26) mounted on the substrate (22), and the substrate (22). The operation plate 28 generates power by deforming the piezoelectric member 26 together with the substrate 22 by operation, and connection means for electrically connecting the charging portion of the electronic device and the piezoelectric member 26. [Selected figure] Figure 3

Description

The present invention relates to a power generation apparatus and a portable personal computer.

  Patent Document 1 discloses a portable power supply unit for supplying power to an electronic device provided with a charging unit such as a portable personal computer (hereinafter referred to as “notebook personal computer” as appropriate). .

JP, 2001-69682, A

  By the way, since it is desired that the current electronic devices such as notebook computers etc. be light and thin, it tends to be difficult to increase the battery capacity (that is, to increase the size of the battery). In addition, lithium ion batteries are used as batteries of current electronic devices such as notebook computers. It is estimated that long-life batteries will be put to practical use by improvement of lithium ion batteries and fuel cells in the future, but they have not been put on the market so far. For this reason, in order to ensure sufficient working time with an electronic device such as a notebook computer, it is necessary to carry a power supply unit.

  In the market, a power generation device capable of charging an electronic device such as a laptop computer with a simple manual operation without carrying a power supply unit is desired.

The present invention, in consideration of the aforementioned, to provide a portable personal computer equipped with a power generating device and the power generating device which can be charged by a simple manual operation to the electronic apparatus provided with a charging unit To aim.

  The power generation apparatus according to the first aspect of the present invention is a flexible substrate having a portion fixed to an electronic device, a sheet-like piezoelectric member mounted on the substrate, and a manual arrangement disposed opposite to the substrate. The electronic device comprises an operation plate that generates electric power by deforming the piezoelectric member together with the substrate by an operation, and connection means for electrically connecting the charging portion of the electronic device and the piezoelectric member.

  In the power generation device according to the first aspect, when the operation plate disposed opposite to the substrate is manually pressed to the substrate to deform the piezoelectric member together with the substrate, the sheet-like piezoelectric member generates power by the piezoelectric effect. The electric power generated by the piezoelectric member is supplied to the charging portion of the electronic device through the connection means that electrically connects the piezoelectric member and the charging portion of the electronic device. As described above, in the power generation device, the electronic device can be charged (power supplied to the charging unit) by a simple manual operation of pressing the operation plate against the substrate to deform the piezoelectric member together with the substrate.

  The power generation apparatus according to a second aspect of the present invention is the power generation apparatus according to the first aspect, wherein the substrate is connected to a fixed part fixed to a flat surface formed on the electronic device, and the fixed part. An arc-shaped portion separated from a flat surface and convex in a direction perpendicular to the flat surface, and the piezoelectric member is mounted on the arc-shaped portion.

  In the power generation device of the second aspect, the operation plate is manually pressed against the substrate to deform the arc-shaped portion of the substrate along the flat surface of the electronic device. Then, when the pressure on the arc-shaped portion is released, the arc-shaped portion is restored. By repeatedly performing deformation and restoration of the arc-shaped portion as described above, the piezoelectric member mounted on the arc-shaped portion generates power. Here, in the above power generation apparatus, the arc-shaped portion is deformed along the flat surface of the electronic device by the operation plate, that is, the arc-shaped portion is crushed to be flat along the flat surface by a simple manual operation. The electronic device can be charged.

  The power generation apparatus according to a third aspect of the present invention is the power generation apparatus according to the first aspect, further comprising a base member fixed to a flat surface formed on the electronic device, wherein the base member is an end of the substrate And one end of the operation plate is attached, and the substrate and the operation plate are supported by the base member in a cantilever state separated from the flat surface.

  In the power generation apparatus according to the third aspect, since the substrate and the operation plate are supported by the base member in a cantilever state separated from the flat surface of the electronic device, the operation plate is manually pressed to the substrate to bend the piezoelectric member together with the substrate. When deformed, the sheet-like piezoelectric member generates electric power by the piezoelectric effect. Here, in the power generation device, the electronic device can be charged by a simple manual operation of pressing the operation plate against the substrate to bend and deform the piezoelectric member.

  A power generation apparatus according to a fourth aspect of the present invention includes a base member fixed to a flat surface formed on an electronic device, a flexible substrate having one end attached to the base member, and the flat surface of the substrate. A piezoelectric member mounted on the opposite surface to the base member, an operation plate having one end attached to the base member, disposed opposite to the substrate on the opposite side of the flat surface, and elastically deformed by a manual operation; A connection is provided to face the piezoelectric member on the surface on the substrate side of the plate, and electrically connect a pressing member that presses the piezoelectric member to generate electric power, a charging unit provided in the electronic device, and the piezoelectric member Means.

  In the power generation device according to the fourth aspect, when the operation plate disposed opposite to the substrate is elastically deformed by manual operation and the pressing member presses the piezoelectric member, the piezoelectric member generates power by the piezoelectric effect. The electric power generated by the piezoelectric member is supplied to the charging portion of the electronic device through the connection means that electrically connects the piezoelectric member and the charging portion of the electronic device. As described above, in the power generation device, the electronic device can be charged (power supplied to the charging unit) by a simple manual operation of pressing the piezoelectric member mounted on the substrate with the pressing member provided on the operation plate.

  The power generation apparatus according to a fifth aspect of the present invention is the power generation apparatus according to any one of the first to fourth aspects, wherein the connection means has a rectification circuit for rectifying a current generated by the piezoelectric member. ing.

  In the power generation device of the fifth aspect, the current generated by the piezoelectric effect of the piezoelectric member is rectified by the rectification circuit, so that the charging efficiency with respect to the charging portion of the electronic device is improved.

  A portable personal computer according to a sixth aspect of the present invention is a portable personal computer using the power generation device according to any one of the first to fifth aspects, and is a main body provided with a touch pad part and a keyboard part. And a display unit connected to the main body, wherein the main body has both sides across the touch pad, both sides across the keyboard, the touch pad, and the touch pad. The power generation device is disposed on at least a part of a portion between the keyboard portion.

  In the portable personal computer according to the sixth aspect, in the main body portion, at least portions of both sides sandwiching the touch pad portion, portions of both sides sandwiching the keyboard portion, and a portion between the touch pad portion and the keyboard portion Since the power generation device is fixed, it is easy to manually operate the operation plate of the power generation device between touch pad operations or keyboard operations. As a result, it is possible to efficiently perform power generation by the power generation device, and it is possible to efficiently charge the portable personal computer.

  A wireless mouse according to a seventh aspect of the present invention is a wireless mouse incorporating the power generation device according to the first aspect, comprising: a mouse body; and a click button as an operation plate of the power generation device provided on the mouse body. The substrate of the power generation device is disposed on the back side of the click button, and when the click button is clicked, the piezoelectric member of the power generation device is deformed together with the substrate.

  In the wireless mouse of the seventh aspect, since the click button is the operation plate of the power generation device and the substrate of the power generation device is disposed on the back side of the click button, the piezoelectric member of the power generation device is deformed together with the substrate by the click operation of the click button. Generate electricity. As described above, since the piezoelectric member generates power by the click operation frequently used in the wireless mouse, the power generation efficiency of the power generation device is improved. The generated power is charged to the charging unit of the wireless mouse via the connection means of the power generation device.

According to the present invention, it is possible to provide a portable personal computer equipped with a power generating device and the power generating device which can be charged by a simple manual operation to the electronic apparatus including the charging unit.

FIG. 1 is a perspective view of a portable personal computer according to a first embodiment of the present invention. It is a top view of the main-body part of the portable personal computer shown by FIG. (A) It is sectional drawing of the electric power generating apparatus of 1st Embodiment shown by FIG. (B) It is sectional drawing which shows the state which operated the electric power generating apparatus shown by FIG. 3 (A) manually. (A) It is sectional drawing of the 1st modification of the electric power generating apparatus of 1st Embodiment. (B) It is sectional drawing which shows the state which operated the electric power generating apparatus shown by FIG. 4 (A) manually. It is sectional drawing of the 2nd modification of the electric power generating apparatus of 1st Embodiment. It is sectional drawing of the 3rd modification of the electric power generating apparatus of 1st Embodiment. It is sectional drawing of the 4th modification of the electric power generating apparatus of 1st Embodiment. (A) It is a side view of the wireless mouse of a 2nd embodiment of the present invention. (B) It is sectional drawing of the electric power generating apparatus of 2nd Embodiment integrated in the wireless mouse shown by FIG. 8 (A). It is sectional drawing of the electric power generating apparatus of other embodiment of this invention.

First Embodiment
Hereinafter, a power generation device according to a first embodiment of the present invention and a portable personal computer (notebook personal computer) using the power generation device will be described with reference to the drawings. Arrows X, Y, and Z appropriately shown in the drawings indicate the width direction, depth direction, and thickness direction of the main body portion 102 of the notebook computer 100 in which the power generation device 20 is used. In the following description, when the width direction X, the depth direction Y, and the thickness direction Z are described, these refer to the width direction, the depth direction, and the thickness direction of the main body portion 102 of the notebook computer 100.

  First, the notebook computer 100 in which the power generation device 20 of the present embodiment is used will be described, and next, the power generation device 20 of the present embodiment will be described.

[laptop]
As shown in FIG. 1, the notebook computer 100 of the present embodiment is an example of an electronic device provided with a charging unit. The notebook computer 100 includes a main unit 102 and a display unit 104.

  As shown in FIG. 2, the main body portion 102 is a portion to be a base of the notebook computer 100. A touch pad unit 106 and a keyboard unit 108 are provided on the surface of the main body unit 102. Further, the main body unit 102 incorporates a battery 110 as a charging unit. The notebook computer 100 is driven by using the power stored in the battery 110. As the battery 110, for example, a lithium ion battery is used.

  As shown in FIG. 1, the display unit 104 is a movable portion of the notebook computer 100, and a display area for displaying an image is provided. The display unit 104 is rotatably connected to the main unit 102 on the back side of the main unit 102.

  Further, as shown in FIG. 2, a plurality (6 in the present embodiment) of power generation devices 20 are provided in the main body portion 102 of the notebook computer 100.

[Generator]
As shown in FIGS. 1 and 3A, the power generation device 20 includes a substrate 22, a piezoelectric member 26, an operation plate 28, and a connection device 30.

(substrate)
As shown in FIG. 3A, the substrate 22 is a plate having flexibility, and in the present embodiment, a plate spring is used. The substrate 22 is connected to a flat plate-like fixed portion 22A fixed to a flat surface 102A constituting the surface of the main body portion 102 and the fixed portion 22A, separated from the flat surface 102A, and orthogonal to the flat surface 102A. (In the present embodiment, an arc plate-like arc-shaped portion 22B that is convex in the thickness direction Z) is provided. In the substrate 22, the end 22C of the arc-shaped portion 22B opposite to the fixed portion 22A is the free end, and the distance from the flat surface 102A is the largest.

  Further, in the present embodiment, the fixed portion 22A of the substrate 22 is fixed to the flat surface 102A of the main body portion 102 using an adhesive member (not shown). As this adhesive member, a double-sided adhesive tape etc. are mentioned, for example. The fixing method is not limited as long as the fixed portion 22A of the substrate 22 can be fixed to the flat surface 102A of the main body portion 102.

(Piezoelectric member)
As shown in FIG. 3A, the piezoelectric member 26 is a sheet-like member (so-called piezoelectric element) that generates electric power by the piezoelectric effect. The piezoelectric member 26 is a piezoelectric film, and is mounted on a surface 22D of the substrate 22 opposite to the flat surface 102A. In the present embodiment, the piezoelectric member 26 is attached to the flat surface 102A of the substrate 22, but the present invention is not limited to this configuration. For example, it may be configured to be held and fixed by an operation plate 28 and a substrate 22 described later.

In addition, as the piezoelectric member 26, for example, polyvinylidene fluoride (PVDF), lead zirconate titanate (PZT), barium titanate (BaTiO ₃ ) or the like formed in a film (20 μm to 200 μm as an example) May be used.

(Operation board)
As shown in FIG. 3A, the operation plate 28 is a plate having flexibility, and in the present embodiment, a plate spring is used. The operation plate 28 is disposed opposite to the substrate 22 on the side opposite to the flat surface 102A with the substrate 22 interposed therebetween. Although the operating plate 28 of the present embodiment separates the thickness of the piezoelectric member 26 from the substrate 22 as a whole, the present invention is not limited to this configuration. Further, the operation plate 28 has a shape corresponding to the substrate 22. Specifically, the operation plate 28 has a flat plate portion 28A having a shape corresponding to the fixed portion 22A of the substrate 22 and an arc-shaped portion 28B having a shape corresponding to the arc-shaped portion 22B. In the same manner as the base plate 22, the end 28C of the arc-shaped portion 28B opposite to the flat plate portion 28A is also a free end.

  Further, the operation plate 28 is configured to generate electric power by deforming the piezoelectric member 26 attached to the substrate 22 together with the substrate 22 by a manual operation. Specifically, as shown in FIG. 3B, when the operation plate 28 is pushed toward the flat surface 102A with the user's hand or the like, the operation plate 28 is pressed against the substrate 22 and the piezoelectric member together with the substrate 22 As a result, the piezoelectric member 26 generates power by the piezoelectric effect. In the present embodiment, although the operation plate 28 is pressed against the substrate 22 via the piezoelectric member 26, it is described that the operation plate 28 is pressed against the substrate 22 because the thickness of the piezoelectric member 26 is extremely thin.

(Connection means)
The connection device 30 is a member that electrically connects the battery 110 of the notebook computer 100 and the piezoelectric member 26. The connecting device 30 is attached to a rectifying circuit 32 for rectifying a current generated by the piezoelectric member 26, a housing 34 in which the rectifying circuit 32 is accommodated, and the housing 34, and is inserted into a charging terminal (not shown) of the notebook computer 100. And the electrical wiring 38 from the piezoelectric member 26 to the connection terminal 36. Although the charging terminal (not shown) of the notebook computer 100 is a charging terminal for connecting the connection terminal of the AC adapter in this embodiment, it may be a USB terminal as long as the notebook computer can supply power to the battery 110 from the USB terminal. . The connection device 30 of the present embodiment is an example of the connection means in the present invention.

  Further, in the present embodiment, as shown in FIG. 2, six power generation devices 20 are fixed to the main body 102 of the notebook computer 100. Specifically, the power generation device 20 is disposed on both sides of the touch pad portion 106 of the main body portion 102, on both sides of the keyboard portion 108, and between the touch pad portion 106 and the keyboard portion 108. Is arranged. In FIG. 1 and FIG. 2, among the six power generation devices 20, the power generation device disposed on the right side across the touch pad portion 106 is disposed on the left side across the touch pad portion 106 with a symbol 20A. 20 B, the power generation device disposed at the right side of the keyboard 108 with the power generation system 20C, the power generation system disposed at the left of the keyboard 108 with the power generation system 20D, the touch pad unit 106 The power generation device disposed on the right side between the keyboard unit 108 and the power generation device disposed on the left side between the touch pad unit 106 and the keyboard unit 108 is indicated by a reference numeral 20F. In the present embodiment, the electric wires 38, the rectifier circuit 32, the connection terminals 36, and the like are shared by the power generation devices 20A to 20F, but the present invention is not limited to this configuration.

  Next, the operation and effect of the power generation device 20 of the present embodiment will be described.

  In the power generation apparatus 20, as shown in FIGS. 3A and 3B, the operation plate 28 disposed opposite to the substrate 22 is pressed against the substrate 22 by the manual operation of the user to combine the substrate 22 with the piezoelectric member 26. When deformed, the sheet-like (film-like) piezoelectric member 26 generates electricity due to the piezoelectric effect. The electric power generated by the piezoelectric member 26 is supplied to the battery 110 through a connecting device 30 that electrically connects the piezoelectric member 26 and the battery 110 of the notebook computer 100. As described above, in the power generation apparatus 20, the notebook computer 100 can be charged (power supplied to the battery 110) by a simple manual operation of pressing the operation plate 28 against the substrate 22 to deform the piezoelectric member 26 together with the substrate 22. This makes it possible to obtain sufficient working time with the notebook computer 100 without carrying an external battery or an AC adapter.

  In particular, in the power generation device 20, since the substrate 22 has the fixed portion 22A and the arc-shaped portion 22B, the operation plate 28 is pressed against the substrate 22 manually by the user to make the arc-shaped portion 22B flat. When it is deformed along the surface 102A (deformed into a flat plate shape), the piezoelectric member 26 is extended and deformed to generate power. Then, when the user releases the pressure on the arc-shaped portion 22B, the arc-shaped portion 22B is restored (restores in an arc shape). As described above, the user manually operates the operation plate 28 to repeat deformation and restoration of the arc-shaped portion 22B, thereby causing the piezoelectric member 26 attached to the arc-shaped portion 22B to be elastically deformed and to repeat power generation. Here, in the power generation device 20, the arc-shaped portion 22B is deformed along the flat surface 102A of the notebook computer 100 by the operation plate 28, that is, the arc-shaped portion 22B is flat along the flat surface 102A. The notebook computer 100 can be charged by a simple manual operation of crushing.

  Further, in the power generation device 20, since the current generated by the piezoelectric effect of the piezoelectric member 26 is rectified by the rectification circuit 32, the charging efficiency of the battery 110 of the notebook computer 100 is improved.

  In the notebook computer 100 of the present embodiment, in the main body unit 102, portions on both sides across the touch pad portion 106, portions on both sides across the keyboard portion 108, and a portion between the touch pad portion 106 and the keyboard portion 108 Since the power generation devices 20A to 20F are respectively disposed, it is easy to manually operate the operation plates 28 of the power generation devices 20A to 20F between touch pad operations or keyboard operations. By arranging the plurality of power generation devices 20 at the optimum position of the notebook computer 100 as described above, it is possible to efficiently generate power by the respective power generation devices 20. As a result, the notebook computer 100 can be charged efficiently.

  In the notebook computer 100 according to the above-described embodiment, portions on both sides of the touch pad portion 106 of the main body portion 102, portions on both sides of the keyboard portion 108, and a portion between the touch pad portion 106 and the keyboard portion 108. However, the present invention is not limited to this configuration. For example, the power generation device 20 is provided on at least a part of both sides of the touch pad portion 106 of the main body portion 102, both sides of the keyboard portion 108, and a portion between the touch pad portion 106 and the keyboard portion 108. It should be arranged

  In the power generation device 20 of the above-described embodiment, one piezoelectric member 26 is disposed between the substrate 22 and the operation plate 28. However, the present invention is not limited to this configuration. For example, a plurality of piezoelectric members 26 may be disposed between the substrate 22 and the operation plate 28. By arranging the plurality of piezoelectric members 26 in this manner, the output voltage of the power generation device 20 can be improved.

  Further, in the power generation device 20 of the above-described embodiment, the fixed portion 22A of the substrate 22 is fixed to the flat surface 102A of the notebook computer 100, and the arc-shaped portion 22B is separated from the flat surface 102A. The invention is not limited to this configuration. For example, it may be configured as the power generation device 40 shown in FIG. 4 (A). The power generation apparatus 40 includes a flat plate-like substrate 42 which is a plate spring, a base member 44 for fixing the substrate 42 to the flat surface 102A, a piezoelectric member 26 attached to the surface 42C of the substrate 42, and the substrate 42. And a connection device 30. The operation plate 46 has a flat plate-like operation plate 46 disposed opposite to each other. The base member 44 is, for example, a member fixed to the flat surface 102A using an adhesive member or the like. One end 42A of the substrate 42 and one end 46A of the operation plate 46 are attached to the base member 44, respectively. The base member 44 supports the base plate 42 and the operation plate 46 in a cantilevered state separated from the flat surface 102A. That is, the other end 42B of the substrate 42 and the other end 46B of the operation plate 46 are respectively set as free ends. In the power generation apparatus 40, as shown in FIG. 4A, since the base plate 42 and the operation plate 46 are supported by the base member 44 in a cantilever state separated from the flat surface 102A, the operation plate 46 is manually operated. When it is pressed against the substrate 42 and the piezoelectric member 26 is bent and deformed together with the substrate 42 (see FIG. 4B), the piezoelectric member 26 generates power by the piezoelectric effect. Here, in the power generation device 40, the notebook computer 100 can be charged by a simple manual operation of pressing the operation plate 46 against the substrate 42 and bending and deforming the piezoelectric member 26.

  Moreover, in the electric power generating apparatus 40 of the above-mentioned embodiment, although the piezoelectric member 26 is affixed on the surface 42C of the board | substrate 42 which is a leaf | plate spring, this invention is not limited to this structure. For example, it may be configured as a power generation device 50 shown in FIG. In the power generation device 50, the piezoelectric member 26 is incorporated (embedded) in a flexible substrate 52 made of a resin material, and the substrate 52 is sandwiched between the operation plate 46 and the plate spring 54. Therefore, in addition to the effects obtained by the configuration of the power generation device 40, the power generation device 50 can suppress the piezoelectric member 26 from being exposed to the outside. The structure of the power generation device 50 (a structure in which a piezoelectric member is incorporated in a flexible substrate formed of a resin material and the substrate is sandwiched between the operation plate and a plate spring) is the power generation device 20 of the first embodiment. It may apply to

  Furthermore, in the power generation device 50 of the above-described embodiment, the piezoelectric member 26 is incorporated inside the substrate 52 made of a resin material, and the substrate 52 is sandwiched between the operation plate 46 and the plate spring 54. Is not limited to this configuration. For example, it may be configured as a power generation device 60 shown in FIG. In the power generation device 60, the substrate 52 and the operation plate 46 are joined (bonded as an example), and the plate spring 54 is omitted. Therefore, in the power generation device 60, in addition to the effects obtained by the configuration of the power generation device 50, the height of the base member 44 (the height from the flat surface 102A of the notebook computer 100) can be lowered. The configuration of the power generation device 60 (a configuration in which the piezoelectric member is incorporated in the flexible substrate formed of a resin material) may be applied to the power generation device 20 of the first embodiment.

  Further, in the power generation apparatus 60 according to the above-described embodiment, the base member 44 is fixed to the flat surface 102A of the notebook computer 100 and the substrate 52 and the operation plate 46 are supported in a cantilever state. It is not limited. For example, as in the power generation device 70 shown in FIG. 7, the power generation device may be incorporated into the notebook computer 100. In this power generation device 70, instead of the base member 44, the substrate 52 and the operation plate 46 to which the substrate 52 is joined are cantilevered by the side wall 112A of the recess 112 provided in the main body 102 of the notebook computer 100. It is supported. Therefore, in addition to the effects obtained by the configuration of the power generation device 50, the power generation device 70 can suppress the power generation device from protruding from the flat surface 102A of the notebook computer 100. In addition, since the power generation device 70 is incorporated in the notebook computer 100, the wiring is stored inside the notebook computer 100. The power generation device 20 according to the first embodiment and the power generation device of the power generation device 70 (a configuration in which the substrate and the operation plate are supported in a cantilevered state by the side walls of the recess provided in the main body of the notebook computer) The present invention may be applied to 40 and the power generation device 50.

Second Embodiment
Next, a power generation device 80 according to a second embodiment of the present invention and a wireless mouse (wireless mouse) 120 incorporating the power generation device 80 will be described. Arrows H and F appropriately illustrated in the drawings indicate the height direction and the forward direction of the wireless mouse 120 in which the power generation device 80 is incorporated. In the case where the height direction H and the forward direction F are described, these indicate the height direction of the wireless mouse 120 and the forward direction.

  First, the wireless mouse 120 in which the power generation device 80 of the present embodiment is used will be described, and next, the power generation device 80 of the present embodiment will be described.

[Wireless mouse]
As shown in FIG. 8, the wireless mouse 120 of the present embodiment is an example of an electronic device provided with a charging unit. The wireless mouse 120 includes a mouse body 122 and a click button 124.

  The mouse body 122 is a body portion of the wireless mouse 120. The mouse body 122 incorporates a battery 126 as a charging unit and a wireless device (not shown). The wireless mouse 120 is driven by using the power stored in the battery 126. As the battery 126, for example, a lithium ion battery is used. A wheel 128 is rotatably attached to a central portion in the width direction of the mouse body 122. A part of the wheel 128 protrudes from the mouse body 122.

  The click buttons 124 are respectively provided on both sides of the mouse body 122 across the wheel 128. These click buttons 124 are supported in a cantilever state by the mouse body 122 such that the tip end 124A on the forward direction F side is a free end. The click button 124 in the present embodiment is an example of the operation plate in the present invention.

[Generator]
As shown in FIG. 8A, the power generation device 80 includes a substrate 82, a piezoelectric member 26, a click button 124, and a connection member 84.

(substrate)
As shown in FIG. 8B, the substrate 82 is a leaf spring, and is disposed opposite to the back side of the click button 124. The piezoelectric member 26 is attached to the surface (surface) on the click button 124 side of the substrate 82.

(Operation board)
As shown in FIG. 8B, the click button 124 is in the form of a gently curved plate. Further, in the present embodiment, the click button 124 is formed of a resin material.

(Connection member)
As shown in FIG. 8B, the connection member 84 is an electrical wiring that electrically connects the piezoelectric member 26 and the battery 126. Electric power is supplied to the battery 126 from the piezoelectric member 26 through the connection member 84.

  Next, the operation and effect of the wireless mouse 120 of the present embodiment will be described. Among the effects obtained by the power generation device 80 of the present embodiment, the description of the effects obtained by the power generation device 40 of the above embodiment and the like will be omitted.

  In the wireless mouse 120 of the present embodiment, the click button 124 is the operation plate of the power generation device 80, and the substrate 82 of the power generation device 80 is disposed on the back side of the click button 124. At the same time, the piezoelectric member 26 is bent and deformed to generate power. As described above, since the piezoelectric member 26 generates power by the click operation frequently used in the wireless mouse 120, the amount of power generation by the power generation device 80 is increased. Then, the generated power is charged to the battery 126 of the wireless mouse 120 via the connection member 84.

  Although the piezoelectric film is used as the piezoelectric member 26 in the power generation device 40 of the above-described embodiment, the present invention is not limited to this configuration. For example, as in the power generation device 90 shown in FIG. 9, a piezoelectric ceramic may be used as the piezoelectric member. In the power generation device 90, the base member 92 fixed to the flat surface 102A of the notebook computer 100, the flexible substrate 94 having one end 94A attached to the base member 92, and the opposite side of the flat surface 102A of the substrate 94. The piezoelectric member 96 mounted on the surface (surface) 94B, and one end 98A is attached to the base member 92, is disposed opposite to the substrate 94 on the opposite side to the flat surface 102A, and is a leaf spring elastically deformed by manual operation. A pressing member 99 is provided on the operation plate 98 and a surface (back surface) 98B of the operation plate 98 on the substrate 94 side to face the piezoelectric member 96 to press the piezoelectric member 96 to generate electric power, the piezoelectric member 96 and the battery 110 And a connecting device 30 for electrically connecting. The piezoelectric members 96 are formed of piezoelectric ceramic, and a plurality of the piezoelectric members 96 are embedded in the surface 94 B of the substrate 94. In addition, the pressing members 99 are respectively disposed at positions facing the piezoelectric members 96. In the present embodiment, a gap is formed between the piezoelectric member 96 and the pressing member 99. However, a gap may not be present. In the power generation device 90, when the operation plate 98 disposed opposite to the substrate 94 is elastically deformed by manual operation and each pressing member 99 presses the corresponding piezoelectric member 96, the piezoelectric member 96 generates electric power by the piezoelectric effect. . The power generated by the piezoelectric member 96 is supplied to the battery 110 through the connection device 30. As described above, in the power generation device 40, the notebook computer 100 can be charged by a simple manual operation of pressing the pressing member 99 provided on the operation plate 98 against the piezoelectric member 96 mounted on the substrate. The configuration of the power generation device 90 may be applied to the wireless mouse 120 of the second embodiment.

  As mentioned above, although one embodiment of the present invention was described, the present invention is not limited to the above, and can be variously modified and carried out in addition to the above in the range which does not deviate from the main point. Of course. For example, in the above-mentioned embodiment, although the electronic device provided with the charge part was used as notebook computer 100 and wireless mouse 120, it is needless to say that it is not limited to this composition.

Reference Signs List 20 power generator 22 substrate 22A fixed portion 22B arc-shaped portion 22C end portion 22D surface 26 piezoelectric member 28 operation plate 30 connection device (connection means)
32 Rectifying Circuit 40 Power Generation Device 42 Substrate 42A One End 42C Surface 44 Base Member 46 Operation Plate 46A One End 50 Power Generation Device 52 Substrate 60 Power Generation Device 80 Power Generation Device 80 Power Generation Device 82 Substrate 84 Connection Member 90 Power Generation Device 92 Base Member 94 Substrate 94A One End 94B Surface 96 Piezoelectric member 98 Operation plate 98A One end 99 Pressing member 100 Notebook computer (electronic equipment)
102 main part 102A flat surface 106 touch pad part 108 keyboard part 110 battery (charge part)
120 Wireless Mouse (Electronic Equipment)
122 Mouse body 124 Click button 126 Battery (charger)

Claims (6)

A substrate which is flexible and partially fixed to the surface of the electronic device by using an adhesive member ;
A sheet-like piezoelectric member mounted on the substrate;
A control plate disposed opposite to the substrate and configured to generate power by deforming the piezoelectric member together with the substrate by manual operation;
Connection means for electrically connecting the charging unit of the electronic device and the piezoelectric member;
A power generator comprising The substrate is connected to a fixed portion fixed to the flat surface formed on the surface of the electronic device using the bonding member, and the fixed portion, separated from the flat surface, and orthogonal to the flat surface. And an arc-shaped portion that is convex on the
The power generation device according to claim 1, wherein the piezoelectric member is attached to the arc-shaped portion. The electronic apparatus further comprises a base member fixed to the flat surface formed on the surface of the electronic device using the adhesive member ,
One end of the substrate and one end of the operation plate are attached to the base member, respectively.
The power generation apparatus according to claim 1, wherein the substrate and the operation plate are supported by the base member in a cantilevered state separated from the flat surface. A base member fixed to a flat surface formed on the surface of the electronic device using an adhesive member ;
A flexible substrate having one end attached to the base member;
A piezoelectric member mounted on the surface of the substrate opposite to the flat surface;
An operation plate having one end attached to the base member, disposed opposite to the flat surface opposite the flat surface, and elastically deformed by a manual operation;
A pressing member provided opposite to the piezoelectric member on the surface of the operation plate on the substrate side, for pressing the piezoelectric member to generate electric power;
Connection means for electrically connecting the charging unit of the electronic device and the piezoelectric member;
A power generator comprising   The power generation device according to any one of claims 1 to 4, wherein the connection means includes a rectifier circuit that rectifies a current generated by the piezoelectric member. It is a portable personal computer using the electric power generating apparatus of any one of Claims 1-5, Comprising:
A main unit provided with a touch pad unit and a keyboard unit;
A display unit connected to the main unit;
Equipped with
In the main body, the power generation device is disposed in at least a portion of both sides sandwiching the touch pad portion, both sides across the keyboard portion, and a portion between the touch pad portion and the keyboard portion Has been a portable personal computer.