JP2020114115A - Power generator and portable personal computer - Google Patents

Abstract

To provide a power generator which can charge an electronic apparatus with a charging part by a simple manual operation.SOLUTION: A power generator 20 comprises: a substrate 22 which has flexibility and a part of which is fixed to an electronic apparatus; a sheet-like piezoelectric member 26 mounted on the substrate 22; an operation plate 28 which is oppositely arranged on the substrate 22 and deforms the piezoelectric member 26 with the substrate 22 to generate power by a manual operation; and connection means for electrically connecting a charging part which the electronic apparatus comprises with the piezoelectric member 26.SELECTED DRAWING: Figure 3

Description

The present invention relates to a power generator, a portable personal computer, and a wireless mouse.

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

JP 2001-69682 A

By the way, current electronic devices such as laptop computers are desired to be lightweight and thin, and thus it tends to be difficult to increase the battery capacity (that is, increase the size of the battery). In addition, a lithium ion battery is used as a battery of an electronic device such as a current notebook computer. It is estimated that long-life batteries will be put to practical use by improving lithium-ion batteries and fuel cells in the future, but they have not yet been put on the market. Therefore, it is necessary to carry a power supply unit in order to secure a sufficient working time in an electronic device such as a laptop computer.

In the market, there is a demand for a power generator capable of charging an electronic device such as a laptop computer by a simple manual operation without carrying a power supply unit.

In view of the above facts, the present invention provides a power generator capable of charging an electronic device having a charging unit by a simple manual operation, a portable personal computer and a wireless mouse having the power generator. With the goal.

A power generation device according to a first aspect of the present invention is a flexible substrate, a part of which is fixed to an electronic device, a sheet-shaped piezoelectric member mounted on the substrate, and the substrate that is disposed so as to face the substrate. An operation plate that deforms the piezoelectric member together with the substrate by operation to generate electric power, and a connecting unit that electrically connects the charging unit included in the electronic device and the piezoelectric member are provided.

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

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

In the power generator 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 arcuate portion is released, the arcuate portion is restored. By repeatedly deforming and restoring the arcuate portion in this manner, the piezoelectric member mounted on the arcuate portion generates power. Here, in the above-mentioned power generator, the arcuate portion is deformed along the flat surface of the electronic device by the operation plate, that is, the arcuate portion is crushed so as to be flat along the flat surface by a simple manual operation. The electronic device can be charged.

A power generator according to a third aspect of the present invention is the power generator according to the first aspect, further including a base member fixed to a flat surface formed on the electronic device, wherein the base member has one end of the substrate. And one end of the operation plate are respectively 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 generator of 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 against the substrate to bend the piezoelectric member together with the substrate. When deformed, the sheet-shaped piezoelectric member generates electricity by the piezoelectric effect. Here, in the above-described 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 generator according to a fourth aspect of the present invention is 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 attached to a surface opposite to the base member, an operation plate having one end attached to the base member, arranged opposite to the substrate on the opposite side to the flat surface, and elastically deformed by a manual operation; A pressing member that is provided on the surface of the plate facing the piezoelectric member and that presses the piezoelectric member to generate electric power, and a connection that electrically connects the charging unit included in the electronic device and the piezoelectric member. And means.

In the power generator according to the fourth aspect, when the operation plate arranged to face the substrate is elastically deformed by manual operation and the piezoelectric member is pressed by the pressing member, the piezoelectric member generates electric power by the piezoelectric effect. The electric power generated by the piezoelectric member is supplied to the charging unit of the electronic device through a connecting unit that electrically connects the piezoelectric member and the charging unit of the electronic device. As described above, in the power generator, the electronic device can be charged (power is 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.

A power generator according to a fifth aspect of the present invention is the power generator according to any one of the first to fourth aspects, wherein the connecting means has a rectifying circuit that rectifies a current generated by the piezoelectric member. ing.

In the power generator of the fifth aspect, the current generated by the piezoelectric effect of the piezoelectric member is rectified by the rectifier circuit, so that the charging efficiency of the charging section 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 a main body portion provided with a touch pad portion and a keyboard portion. And a display unit connected to the main body unit, wherein in the main body unit, portions on both sides of the touch pad portion, portions on both sides of the keyboard portion, and the touch pad portion and the The power generation device is arranged in at least a part of a portion between the keyboard part and the keyboard part.

In the portable personal computer according to the sixth aspect, in the main body part, at least a part of both sides of the touch pad part, a part of both sides of the keyboard part, and a part between the touch pad part and the keyboard part are provided. Since the power generator is fixed, it is easy to manually operate the operation plate of the power generator between the touch pad operation and the keyboard operation. As a result, power generation by the power generation device can be efficiently performed, and the portable personal computer can be efficiently charged.

A wireless mouse of a seventh aspect of the present invention is a wireless mouse in which the power generator of the first aspect is incorporated, and includes a mouse main body and a click button provided on the mouse main body as an operation plate of the power generator. In addition, the substrate of the power generation device is arranged on the back side of the click button, and the piezoelectric member of the power generation device is deformed together with the substrate by the click operation of the click button.

In the wireless mouse of the seventh aspect, since the click button is used as the operation plate of the power generator and the substrate of the power generator is arranged on the back side of the click button, the piezoelectric member of the power generator is deformed together with the substrate by the click operation of the click button. And 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 electric power is charged in the charging unit of the wireless mouse via the connecting unit of the power generation device.

According to the present invention, it is possible to provide a power generator capable of charging an electronic device including a charging unit by a simple manual operation, a portable personal computer and a wireless mouse including the power generator.

FIG. 2 is a perspective view of the portable personal computer according to the first embodiment of the present invention. 2 is a plan view of a main body of the portable personal computer shown in FIG. 1. 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 manually operated the electric power generating apparatus shown by FIG. 3(A). (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 manually operated the electric power generating apparatus shown to FIG. 4(A). 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 the second embodiment of the present invention. (B) It is sectional drawing of the electric power generating apparatus of 2nd Embodiment incorporated 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 generator according to a first embodiment of the present invention and a portable personal computer (notebook personal computer) using the power generator will be described with reference to the drawings. In addition, the arrow X, the arrow Y, and the arrow Z, which are appropriately illustrated in each drawing, indicate the width direction, the depth direction, and the 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, when the width direction X, the depth direction Y, and the thickness direction Z are described, these indicate the width direction, the depth direction, and the thickness direction of the main body 102 of the notebook computer 100.

First, the notebook computer 100 in which the power generator 20 of this embodiment is used will be described, and then the power generator 20 of this embodiment will be described.

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

As shown in FIG. 2, the main body 102 is a base of the notebook computer 100. A touch pad section 106 and a keyboard section 108 are provided on the surface of the main body section 102. Further, the main body 102 has a built-in battery 110 as a charging unit. The notebook computer 100 is driven by using the electric 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 part of the notebook computer 100, and is provided with a display area for displaying an image. The display unit 104 is rotatably connected to the main body 102 on the inner side of the main body 102.

In addition, as shown in FIG. 2, the main body 102 of the notebook computer 100 is provided with a plurality of power generators 20 (six in this embodiment).

[Power 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 flexible plate material, and in the present embodiment, a plate spring is used. The substrate 22 is a flat plate-shaped fixed portion 22A fixed to the flat surface 102A that constitutes the surface of the main body 102, and a direction that is continuous with the fixed portion 22A, is separated from the flat surface 102A, and is orthogonal to the flat surface 102A. (In the present embodiment, it has an arcuate plate-shaped arcuate portion 22B that is convex in the thickness direction Z). In the substrate 22, the end 22C of the arc-shaped portion 22B opposite to the fixed portion 22A side is a 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). Examples of this adhesive member include double-sided adhesive tape and the like. 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 102.

(Piezoelectric member)
As shown in FIG. 3A, the piezoelectric member 26 is a sheet-shaped member (so-called piezoelectric element) that generates power by the piezoelectric effect. The piezoelectric member 26 is a piezoelectric film and is attached to the surface 22D of the substrate 22 opposite to the flat surface 102A. Although the piezoelectric member 26 is attached to the flat surface 102A of the substrate 22 in the present embodiment, the present invention is not limited to this configuration. For example, the configuration may be such that the operation plate 28 and the substrate 22 described later are sandwiched and fixed.

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

(Operation board)
As shown in FIG. 3A, the operation plate 28 is a flexible plate material, and in the present embodiment, a plate spring is used. The operation plate 28 is arranged opposite to the substrate 22 on the side opposite to the flat surface 102A side with the substrate 22 interposed therebetween. Although the operation plate 28 of the present embodiment is separated from the substrate 22 by the thickness of the piezoelectric member 26 as a whole, the present invention is not limited to this configuration. 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 arcuate portion 28B having a shape corresponding to the arcuate portion 22B. As with the substrate 22, the operation plate 28 has a free end at an end portion 28C of the arc-shaped portion 28B opposite to the flat plate portion 28A side.

In addition, the operation plate 28 is configured to deform the piezoelectric member 26 attached to the substrate 22 together with the substrate 22 by manual operation to generate power. Specifically, as shown in FIG. 3B, when the operation plate 28 is pushed toward the flat surface 102</b>A by the user's hand or the like, the operation plate 28 is pressed against the substrate 22, and together with the substrate 22, the piezoelectric member. 26 is deformed, and the piezoelectric member 26 generates electricity by the piezoelectric effect. In the present embodiment, the operation plate 28 is pressed against the substrate 22 via the piezoelectric member 26, but since the thickness of the piezoelectric member 26 is extremely thin, it is described that the operation plate 28 is pressed against the substrate 22.

(Connecting 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 connection device 30 is attached to a rectifier circuit 32 that rectifies the current generated by the piezoelectric member 26, a housing 34 that houses the rectifier circuit 32, and the housing 34, and is inserted and connected to a charging terminal (not shown) of the notebook computer 100. And a 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 to which the connection terminal of the AC adapter is connected in the present embodiment, it may be a USB terminal as long as it is a notebook computer capable of supplying power to the battery 110 from the USB terminal. .. The connecting device 30 of the present embodiment is an example of the connecting means in the present invention.

Further, in the present embodiment, as shown in FIG. 2, the six power generators 20 are fixed to the main body 102 of the notebook computer 100. Specifically, the power generation device 20 is provided on each of both sides of the main body 102 with the touch pad 106 interposed therebetween, with each of the keyboard 108 sandwiched between both sides, and between the touch pad 106 and the keyboard 108. Are arranged. Note that, in FIGS. 1 and 2, among the six power generation devices 20, the power generation device disposed on the right side of the touch pad unit 106 is denoted by reference numeral 20A, and the power generation device disposed on the left side of the touch pad unit 106 is disposed. Reference numeral 20B denotes a power generation device that is arranged on the right side of the keyboard unit 108, and reference numeral 20C denotes a power generation device that is arranged on the left side of the keyboard unit 108. The power generation device arranged on the right side portion with the keyboard portion 108 is indicated by reference numeral 20E, and the power generation device arranged on the left side portion between the touch pad portion 106 and the keyboard portion 108 is indicated by reference numeral 20F. In the present embodiment, the electric wiring 38, the rectifier circuit 32, the connection terminal 36, and the like are shared by the power generators 20A to 20F, but the present invention is not limited to this configuration.

Next, the function and effect of the power generation device 20 of this embodiment will be described.

In the power generation device 20, as shown in FIGS. 3(A) and 3(B), the operation plate 28 opposed to the substrate 22 is pressed against the substrate 22 by a user's manual operation so that the piezoelectric member 26 is removed together with the substrate 22. When deformed, the sheet-shaped (film-shaped) piezoelectric member 26 generates power due to the piezoelectric effect. The electric power generated by the piezoelectric member 26 is supplied to the battery 110 through the connection 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 device 20, the notebook computer 100 can be charged (power is supplied to the battery 110) by a simple manual operation of pressing the operation plate 28 against the substrate 22 and deforming the piezoelectric member 26 together with the substrate 22. As a result, it becomes 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 generator 20, the substrate 22 has the fixed portion 22A and the arc-shaped portion 22B, so that the operation plate 28 is pressed against the substrate 22 by the manual operation of the user so that the arc-shaped portion 22B is flattened in the notebook computer 100. When deformed along the surface 102A (deformed into a flat plate shape), the piezoelectric member 26 expands and deforms to generate power. Then, when the user releases the pressure on the arc-shaped portion 22B, the arc-shaped portion 22B is restored (restored to the arc shape). In this way, the user manually operates the operation plate 28 to repeatedly deform and restore the arcuate portion 22B, whereby the piezoelectric member 26 attached to the arcuate portion 22B expands and contracts to repeat power generation. Here, in the power generator 20, the operation plate 28 deforms the arc-shaped portion 22B along the flat surface 102A of the notebook computer 100, that is, the arc-shaped portion 22B is flattened along the flat surface 102A. The notebook computer 100 can be charged by a simple manual operation of crushing.

Further, in the power generator 20, the current generated by the piezoelectric effect of the piezoelectric member 26 is rectified by the rectifier circuit 32, so that the charging efficiency of the battery 110 of the notebook computer 100 is improved.

In the notebook computer 100 according to the present embodiment, in the main body 102, portions on both sides with the touch pad portion 106 sandwiched therebetween, portions on both sides with the keyboard portion 108 sandwiched therebetween, and a portion between the touch pad portion 106 and the keyboard portion 108. Since the power generators 20A to 20F are respectively arranged in the power generators 20A to 20F, it is easy to manually operate the operation plates 28 of the power generators 20A to 20F between the touch pad operation and the keyboard operation. By arranging the plurality of power generation devices 20 in the optimum position of the notebook computer 100 in this way, it becomes possible to efficiently perform power generation by each power generation device 20. As a result, the notebook computer 100 can be efficiently charged.

In the laptop computer 100 according to the above-described embodiment, portions of the main body 102 on both sides of the touch pad portion 106, portions of 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 in at least a part of both sides of the main body part 102 with the touch pad part 106 interposed therebetween, both sides of the main body part 102 with the keyboard part 108 interposed therebetween, and a part between the touch pad part 106 and the keyboard part 108. Should be placed

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

In the power generator 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 arcuate portion 22B is separated from the flat surface 102A. The invention is not limited to this configuration. For example, a configuration such as the power generation device 40 shown in FIG. 4A may be used. This power generation device 40 includes a flat plate-shaped substrate 42 which is a leaf spring, a base member 44 for fixing the substrate 42 to the flat surface 102A, the piezoelectric member 26 attached to the surface 42C of the substrate 42, and the substrate 42. And a connecting device 30. The base member 44 is a member fixed to the flat surface 102A using, for example, an adhesive member. 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 substrate 42 and the operation plate 46 in a cantilever 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 free ends. In the power generation device 40, as shown in FIG. 4A, the substrate 42 and the operation plate 46 are supported by the base member 44 in a cantilever state separated from the flat surface 102A, so that the operation plate 46 can be manually operated. When the piezoelectric member 26 is flexibly deformed together with the substrate 42 by pressing it against the substrate 42 (see FIG. 4B), the piezoelectric member 26 generates power by the piezoelectric effect. Here, in the power generator 40, the notebook computer 100 can be charged by a simple manual operation in which the operation plate 46 is pressed against the substrate 42 to bend and deform the piezoelectric member 26.

Further, in the power generation device 40 of the above-described embodiment, the piezoelectric member 26 is attached to the surface 42C of the substrate 42 which is a leaf spring, but the present invention is not limited to this configuration. For example, a configuration such as the power generation device 50 shown in FIG. 5 may be used. In this power generation device 50, the piezoelectric member 26 is incorporated (embedded) inside a flexible substrate 52 formed of a resin material, and the substrate 52 is sandwiched between the operation plate 46 and the leaf spring 54. Therefore, in the power generation device 50, in addition to the function and effect obtained by the configuration of the power generation device 40, it is possible to suppress the piezoelectric member 26 from being exposed to the outside. Regarding the configuration of the power generation device 50 (a configuration in which a piezoelectric member is incorporated inside a flexible substrate formed of a resin material, and the substrate is sandwiched between an operation plate and a leaf spring), the power generation device 20 of the first embodiment is described. May be applied to.

Further, in the power generator 50 of the above-described embodiment, the piezoelectric member 26 is incorporated inside the substrate 52 formed of a resin material, and the substrate 52 is sandwiched between the operation plate 46 and the leaf spring 54. Is not limited to this configuration. For example, the power generation device 60 shown in FIG. 6 may be used. In this power generator 60, the substrate 52 and the operation plate 46 are joined (bonded as an example), and the leaf spring 54 is omitted. Therefore, in the power generation device 60, the height of the base member 44 (the height from the flat surface 102A of the notebook computer 100) can be reduced in addition to the effects obtained by the configuration of the power generation device 50. Note that the configuration of the power generation device 60 (the configuration in which the piezoelectric member is incorporated inside 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 generator 60 of the above-described embodiment, the base member 44 is fixed to the flat surface 102A of the notebook computer 100 to support the substrate 52 and the operation plate 46 in a cantilever state. Not limited. For example, the power generation device may be incorporated in the notebook computer 100 like the power generation device 70 shown in FIG. 7. 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 the power generation device 70, in addition to the effects obtained by the configuration of the power generation device 50, it is possible to suppress the power generation device from protruding from the flat surface 102A of the notebook computer 100. Further, since the power generation device 70 is incorporated in the notebook computer 100, the wirings are housed inside the notebook computer 100. Regarding the configuration of the power generation device 70 (the configuration in which the substrate and the operation plate are supported in a cantilever state by the side wall of the concave portion provided in the main body of the notebook computer), the power generation device 20 and the power generation device of the first embodiment will be described. It may be applied to the power generation device 40 and the power generation device 50.

(Second embodiment)
Next, a power generation device 80 according to the second embodiment of the present invention and a wireless mouse (wireless mouse) 120 incorporating the power generation device 80 will be described. In addition, the arrow H and the arrow F, which are illustrated as appropriate in each drawing, indicate the height direction and the front direction of the wireless mouse 120 in which the power generation device 80 is incorporated. When the height direction H and the front direction F are described, these indicate the height direction and the front direction of the wireless mouse 120.

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

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

The mouse body 122 is the body of the wireless mouse 120. A battery 126 as a charging unit and a wireless device (not shown) are built in the mouse body 122. The wireless mouse 120 is driven by using the electric 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 the center of the mouse body 122 in the width direction. A part of the wheel 128 projects from the mouse body 122.

The click buttons 124 are provided on both sides of the mouse body 122 with the wheel 128 interposed therebetween. These click buttons 124 are supported in a cantilevered state on the mouse body 122 so that the front end 124A on the front side F becomes a free end. The click button 124 of this embodiment is an example of the operation plate of the present invention.

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

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

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

(Connecting 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 from the piezoelectric member 26 to the battery 126 through the connecting member 84.

Next, the function and effect of the wireless mouse 120 of this embodiment will be described. Note that, among the operational effects obtained by the power generation device 80 of the present embodiment, description of the operational effects obtained by the power generation device 40 of the above-described embodiment will be omitted.

In the wireless mouse 120 of the present embodiment, the click button 124 is used as the operation plate of the power generation device 80, and the substrate 82 of the power generation device 80 is arranged on the back side of the click button 124. At the same time, the piezoelectric member 26 bends and deforms to generate electricity. 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 increases. Then, the generated power is charged into the battery 126 of the wireless mouse 120 via the connecting 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, piezoelectric ceramic may be used as the piezoelectric member as in the power generation device 90 shown in FIG. In this power generator 90, a base member 92 fixed to the flat surface 102A of the notebook computer 100, a flexible substrate 94 having one end 94A attached to the base member 92, and a side opposite to the flat surface 102A of the substrate 94. Of the piezoelectric member 96 mounted on the surface (front surface) 94B of the base member 94 and one end 98A of the base member 92, which are arranged opposite to the flat surface 102A on the substrate 94 and elastically deformed by a manual operation. A certain operation plate 98, a pressing member 99 provided on the surface (rear surface) 98B of the operation plate 98 on the substrate 94 side so as to face the piezoelectric member 96, and presses the piezoelectric member 96 to generate electricity, the piezoelectric member 96, and the battery 110. And a connecting device 30 for electrically connecting the. The piezoelectric member 96 is made of piezoelectric ceramic and is embedded in the surface 94B of the substrate 94. The pressing members 99 are arranged at positions facing the piezoelectric members 96, respectively. Although a gap is formed between the piezoelectric member 96 and the pressing member 99 in the present embodiment, there may be no gap. In this power generation device 90, when the operation plate 98 arranged to face the substrate 94 is elastically deformed by manual operation and each pressing member 99 presses the piezoelectric member 96 at a corresponding position, the piezoelectric member 96 generates power by the piezoelectric effect. .. The electric 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.

Although one embodiment of the present invention has been described above, the present invention is not limited to the above, and various modifications other than the above can be carried out without departing from the gist of the invention. Of course. For example, in the above-described embodiment, the electronic device including the charging unit is the notebook computer 100 and the wireless mouse 120, but it goes without saying that the configuration is not limited to this.

20 power generation device 22 substrate 22A fixed portion 22B arcuate portion 22C end portion 22D surface 26 piezoelectric member 28 operation plate 30 connection device (connection means)
32 rectifier circuit 40 power generator 42 substrate 42A one end 42C surface 44 base member 46 operation plate 46A one end 50 power generator 52 substrate 60 power generator 70 power generator 80 power generator 82 substrate 84 connection member 90 power generator 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 device)
102 main body 102A flat surface 106 touch pad 108 keyboard section 110 battery (charging section)
120 wireless mouse (electronic device)
122 mouse body 124 click button 126 battery (charging part)

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

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.

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.

Claims (7)

A substrate having flexibility and part of which is fixed to an electronic device;
A sheet-shaped piezoelectric member mounted on the substrate,
An operation plate that is disposed so as to face the substrate and that deforms the piezoelectric member together with the substrate by manual operation to generate electricity.
A connecting unit that electrically connects the charging unit and the piezoelectric member included in the electronic device,
A power generator equipped with. The substrate is a fixed portion fixed to a flat surface formed in the electronic device, and an arc-shaped portion that is continuous from the fixed portion and is separated from the flat surface and is convex in a direction orthogonal to the flat surface. Has,
The power generator according to claim 1, wherein the piezoelectric member is attached to the arc-shaped portion. Further comprising a base member fixed to a flat surface formed on the electronic device,
One end of the substrate and one end of the operation plate are attached to the base member,
The power generator according to claim 1, wherein the substrate and the operation plate are supported by the base member in a cantilever state separated from the flat surface. A base member fixed to a flat surface formed on the electronic device,
A flexible substrate having one end attached to the base member,
A piezoelectric member mounted on a surface of the substrate opposite to the flat surface,
One end is attached to the base member, the operation plate is arranged to face the substrate on the side opposite to the flat surface, and is elastically deformed by a manual operation,
A pressing member that is provided on the surface of the operation plate on the substrate side so as to face the piezoelectric member, and presses the piezoelectric member to generate electricity.
A connecting unit that electrically connects the charging unit and the piezoelectric member included in the electronic device,
A power generator equipped with. The power generation device according to claim 1, wherein the connection unit has a rectifier circuit that rectifies a current generated by the piezoelectric member. A portable personal computer using the power generation device according to claim 1.
A main body part provided with a touch pad part and a keyboard part,
A display unit connected to the main body unit;
Equipped with
In the main body part, the power generation device is arranged in at least a part of both sides of the touch pad part, a part of both sides of the keyboard part, and a part between the touch pad part and the keyboard part. Is a portable personal computer. A wireless mouse incorporating the power generator according to claim 1,
Mouse body,
A click button as an operation plate of the power generator provided in the mouse body,
Equipped with
The power generator board is placed behind the click button,
A wireless mouse in which the piezoelectric member of the power generation device is deformed together with the substrate by a click operation of the click button.