Power generation device

Abstract

The invention relates to a power generation device. Provided is a power generation device capable of easily electrically connecting a plurality of first electrode layers and electrically connecting a plurality of second electrode layers. In a power generation device (1) in which a first electrification layer (13) and a second electrification layer (23) face each other by stacking a portion of each of a plurality of first sheet members (10) and a portion of each of a plurality of second sheet members (20) in a staggered manner, power is generated by a change in the contact state between the first electrification layer and the second electrification layer, and a first connection conductor (30) penetrates through the other portions of each of the plurality of first sheet members and connects the first connection conductor (30) and the second connection conductor (30). And a second connection conductor (40) that passes through the other portion of each of the plurality of second sheet members and is connected to the second electrode layer (22) of each of the plurality of second sheet members, and the first connection conductor (40) is connected to the first electrode layer (12) of each of the plurality of first sheet members, and the second connection conductor (40) is connected to the second electrode layer (22) of each of the plurality of second sheet members.

Description

Technical Field

[0001] The present invention relates to a power generation device that generates electricity by utilizing frictional electrification. Background Art

[0002] Conventional power generation devices are known that include a first component having a first electrogenic layer on the outer surface of a first electrode layer, and a second component having a second electrogenic layer on the outer surface of a second electrode layer (for example, see Patent Document 1). Conventional power generation devices stack the first and second components so that the first and second electrogenic layers face each other, and generate electricity by varying the contact state between the first and second electrogenic layers.

[0003] In order to increase power generation output in a power generator, it is conceivable to alternately stack a plurality of first members and a plurality of second members to arrange a plurality of sets of first and second electrogenic layers facing each other in the stacking direction.

[0004] Prior art literature

[0005] Patent Literature

[0006] Patent Document 1: Japanese Patent Application Laid-Open No. 2016-500248 Summary of the Invention

[0007] Problems to be solved by the invention

[0008] In a power generation device having multiple first components and multiple second components, the first electrode layers of the multiple first components are connected in parallel or in series using connecting wires, and the second electrode layers of the multiple second components are connected in parallel or in series using connecting wires. In this case, the connecting wires are pre-connected to the first and second electrode layers, and other components are stacked on the first and second electrode layers to which the connecting wires are connected to form the first and second components. Therefore, for a power generation device having multiple first components and multiple second components, the operation of connecting the connecting wires to the first and second electrode layers becomes complicated, potentially increasing manufacturing costs.

[0009] An object of the present invention is to provide a power generation device capable of easily performing electrical connection between a plurality of first electrode layers and a plurality of second electrode layers.

[0010] Means for solving problems

[0011] The power generation device involved in the present invention is a power generation device comprising a plurality of first sheet members, a plurality of second sheet members, a first connecting conductor, and a second connecting conductor. The first sheet member has a first electrogenic layer on the outer surface side of the first electrode layer, and the second sheet member has a second electrogenic layer on the outer surface side of the second electrode layer. A portion of each of the plurality of first sheet members and a portion of each of the plurality of second sheet members are alternately stacked with each other, so that the first electrogenic layer and the second electrogenic layer are opposite to each other. The power generation device generates electricity by changing the contact state between the first electrogenic layer and the second electrogenic layer. The first connecting conductor penetrates the other portions of each of the plurality of first sheet members and is connected to the first electrode layer of each of the plurality of first sheet members. The second connecting conductor penetrates the other portions of each of the plurality of second sheet members and is connected to the second electrode layer of each of the plurality of second sheet members.

[0012] Furthermore, the power generation device according to the present invention preferably includes: a first insulating member positioned between the plurality of first sheet members and surrounding the outer periphery of the first connection conductor; and a second insulating member positioned between the plurality of second sheet members and surrounding the outer periphery of the second connection conductor.

[0013] In addition, the power generation device according to the present invention preferably has a ratio Ti1 / Ts2 of the thickness Ti1 of the first insulating component to the thickness Ts2 of the second sheet component, and a ratio Ti2 / Ts1 of the thickness Ti2 of the second insulating component to the thickness Ts1 of the first sheet component, both of which are within the range of 0.8 to 1.2.

[0014] In the power generating device according to the present invention, it is preferable that one of the first electrogenic layer and the second electrogenic layer is formed from polyimide having a porous structure, and the other is formed from polyamide.

[0015] In addition, the power generation device according to the present invention preferably has the aforementioned first connecting conductor and the aforementioned second connecting conductor respectively having: a pair of through portions, which penetrate the other parts of the plurality of aforementioned first sheet parts and the plurality of aforementioned second sheet parts in the stacking direction; and a connecting portion, which extends along the surface direction of the aforementioned first sheet part and the surface direction of the aforementioned second sheet part, connecting the base ends of the pair of aforementioned through portions to each other.

[0016] In addition, the power generation device according to the present invention preferably comprises: a first conductive wire connected to the aforementioned first connecting conductor; and a second conductive wire connected to the aforementioned second connecting conductor, the aforementioned first conductive wire being clamped between the aforementioned connecting portion of the aforementioned first connecting conductor and the aforementioned first sheet member, and the aforementioned second conductive wire being clamped between the aforementioned connecting portion of the aforementioned second connecting conductor and the aforementioned second sheet member.

[0017] In the power generation device according to the present invention, it is preferable that the first connection conductor and the second connection conductor are conductive thread-like members formed by sewing a plurality of the first sheet members and a plurality of the second sheet members, respectively.

[0018] In addition, the power generation device according to the present invention preferably comprises: a first conductive wire, which is connected to the aforementioned first connecting conductor; and a second conductive wire, which is connected to the aforementioned second connecting conductor, the aforementioned first conductive wire is clamped between the wire-like component constituting the aforementioned first connecting conductor and the aforementioned first sheet component, and the aforementioned second conductive wire is clamped between the wire-like component constituting the aforementioned second connecting conductor and the aforementioned second sheet component.

[0019] In addition, the power generation device according to the present invention preferably has a spacing maintaining member for maintaining the spacing between the first sheet member and the second sheet member opposite to each other in the stacking direction, and the spacing maintaining member is arranged between the second sheet member opposite to at least one side in the stacking direction with respect to the end side of the first sheet member located on the side of the second insulating member, and between the first sheet member opposite to at least one side in the stacking direction with respect to the end side of the second sheet member located on the side of the first insulating member.

[0020] Effects of the Invention

[0021] According to the present invention, by making the first connecting conductor penetrate multiple first sheet parts in the stacking direction, and making the second connecting conductor penetrate multiple second sheet parts in the stacking direction, multiple first electrode layers can be connected to the first connecting conductor, and multiple second electrode layers can be connected to the second connecting conductor, so that electrical connection of multiple first electrode layers and electrical connection of multiple second electrode layers can be easily performed. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a cross-sectional view of the power generation device according to the first embodiment of the present invention.

[0023] Figure 2 It is an exploded perspective view of a first sheet member constituting the power generation device according to the first embodiment of the present invention.

[0024] Figure 3 It is an exploded perspective view of a second sheet member constituting the power generation device according to the first embodiment of the present invention.

[0025] Figure 4 It is an exploded perspective view of the power generation device according to the first embodiment of the present invention.

[0026] Figure 5 It is an exploded perspective view of a power generation device according to a second embodiment of the present invention.

[0027] Figure 6 It is a cross-sectional view of a power generation device according to a third embodiment of the present invention.

[0028] Figure 7 It is a cross-sectional view showing a modified example of the power generation device according to the third embodiment of the present invention.

[0029] Figure 8 It is a cross-sectional view showing a modified example of the power generation device according to the third embodiment of the present invention.

[0030] Description of Reference Numerals

[0031] 1 Power generation device

[0032] 101st sheet component

[0033] 121st electrode layer

[0034] 13. The first electrifying layer

[0035] 20 2nd sheet component

[0036] 22 Second electrode layer

[0037] 23 Second electrification layer

[0038] 30 1st connecting conductor

[0039] 31 through part

[0040] 32 connection part

[0041] 33 filamentous parts

[0042] 40 2nd connecting conductor

[0043] 41 through part

[0044] 42 connection part

[0045] 43 filamentous parts

[0046] 50 1st insulating component

[0047] 60 2nd insulating part

[0048] 70 1st wire

[0049] 80 Second wire

[0050] 90 interval maintaining components DETAILED DESCRIPTION

[0051] <First embodiment>

[0052] Figures 1 to 4 A first embodiment of the present invention will be described. Figure 1is a cross-sectional view of the power generation device. Figure 2 This is an exploded perspective view of the first sheet member constituting the power generation device. Figure 3 This is an exploded perspective view of the second sheet member constituting the power generation device. Figure 4 This is an exploded perspective view of the power generation device.

[0053] like Figure 1 As shown, the power generation device 1 of this embodiment includes a plurality of first sheet parts 10 on the positive charging side, a plurality of second sheet parts 20 on the negative charging side, a first connecting conductor 30 connected to the first electrode layer described later of each of the plurality of first sheet parts 10, a second connecting conductor 40 connected to the second electrode layer described later of each of the plurality of second sheet parts 20, a plurality of first insulating parts 50 surrounding the outer periphery of the first connecting conductor 30, a plurality of second insulating parts 60 surrounding the outer periphery of the second connecting conductor 40, a first wire 70 connected to the first connecting conductor 30, and a second wire 80 connected to the second connecting conductor 40.

[0054] like Figure 2 As shown, the plurality of first sheet components 10 respectively include a first base material layer 11, a pair of first electrode layers 12 arranged on both sides of the first base material layer 11 in the thickness direction, and a pair of first electrogenic layers 13 arranged on the outer sides of each pair of first electrode layers 12 in the thickness direction.

[0055] The first base material layer 11 is formed from a material having insulating properties, such as polyethylene terephthalate.

[0056] The pair of first electrode layers 12 are formed from a conductive member such as a conductive nonwoven fabric formed by vapor-depositing a metal such as copper or aluminum on a nonwoven fabric, copper foil, or aluminum foil.

[0057] The pair of first electrogenic layers 13 are formed from insulating components that are charged to a polarity opposite to that of the second electrogenic layer described later. The first electrogenic layers 13 are made of a film-like component that is easily charged to a positive polarity, such as polyamide, paper (cellulose), aluminum foil, or copper foil. In this embodiment, the first electrogenic layers 13 are preferably polyamide.

[0058] like Figure 3 As shown, the plurality of second sheet members 20 each include a second base material layer 21 , a pair of second electrode layers 22 disposed on both sides of the second base material layer 21 in the thickness direction, and a pair of second electrogenic layers 23 disposed on the outer sides of each of the pair of second electrode layers 22 in the thickness direction.

[0059] The second base layer 21 is formed from a member having insulating properties similar to the first base layer 11 .

[0060] The pair of second electrode layers 22 are formed from a conductive member similar to the first electrode layer 12 .

[0061] A pair of second electroexciting layers 23 are formed from an insulating member that is charged to a polarity opposite to that of the first electroexciting layer 13. The second electroexciting layers 23 are made of a film-like member that is easily negatively charged, such as a non-porous polyimide, polytetrafluoroethylene (PTFE), polystyrene, polyethylene terephthalate, or polyethylene. In this embodiment, the second electroexciting layers 23 are preferably a porous polyimide.

[0062] like Figure 1 As shown, the first sheet members 10 and the second sheet members 20 are partially stacked in an alternating manner, so that the first electrogenic layers 13 of the first sheet members 10 and the second electrogenic layers 23 of the second sheet members 20 face each other.

[0063] The first connection conductor 30 is formed from a rod-shaped or plate-shaped member having conductivity, such as copper or aluminum. Figure 4 As shown, the first connecting conductor 30 has a shape similar to a stapler needle, comprising a pair of through-holes 31 that penetrate the longitudinal portions of the plurality of first sheet members 10 not stacked with the second sheet member 20 in the stacking direction, and a connecting portion 32 that connects the base ends of the pair of through-holes 31. The stacked plurality of first sheet members 10 are maintained by having the pair of through-holes 31 penetrate in the stacking direction and the connecting portion 32 abutting the outer surface of the outermost first sheet member 10 in the stacking direction. At this point, the plurality of first electrode layers 12 are connected in parallel to the first connecting conductor 30.

[0064] The second connecting conductor 40 is formed from the same member as the first connecting conductor 30. The second connecting conductor 40 includes a pair of through-portions 41 that penetrate the longitudinal portions of the plurality of second sheet members 20 not stacked with the first sheet member 10 in the stacking direction, and a connecting portion 42 that connects the base ends of the pair of through-portions 41. The pair of through-portions 41 penetrate the stacked plurality of second sheet members 20 in the stacking direction, while the connecting portion 42 abuts the outer surface of the second sheet member 20 located outermost in the stacking direction, thereby maintaining the stacked state. At this point, the plurality of second electrode layers 22 are connected in parallel to the second connecting conductor 40.

[0065] The plurality of first insulating members 50 are each formed from a member having insulating properties such as polyethylene terephthalate, and are disposed between the plurality of first sheet members 10. Figure 1 and Figure 4As shown, the through portion 31 of the first connection conductor 30, which passes through the plurality of first sheet members 10, passes through the plurality of first insulating members 50. That is, the plurality of first insulating members 50 respectively surround the outer periphery of the first connection conductor 30 located between the plurality of stacked first sheet members 10. Here, the ratio Ti1 / Ts2 of the thickness Ti1 of the first insulating member 50 to the thickness Ts2 of the second sheet member 20 is preferably in the range of 0.8 to 1.2, and more preferably in the range of 0.9 to 1.1.

[0066] The plurality of second insulating members 60 are each formed from a member having insulating properties similarly to the first insulating member 50 and are disposed between the plurality of second sheet members 20. Figure 1 and Figure 4 As shown, the through portion 41 of the second connection conductor 40, which passes through the plurality of second sheet members 20, passes through the plurality of second insulating members 60. That is, the plurality of second insulating members 60 respectively surround the outer periphery of the second connection conductor 40 located between the plurality of stacked second sheet members 20. Here, the ratio Ti2 / Ts1 of the thickness Ti2 of the second insulating member 60 to the thickness Ts1 of the first sheet member 10 is preferably in the range of 0.8 to 1.2, and more preferably in the range of 0.9 to 1.1.

[0067] The first conductive wire 70 is formed from a conductive linear member such as copper or aluminum. The first conductive wire 70 is electrically connected to the first connecting conductor 30 while being sandwiched between the outer surface of the first sheet member 10 located outermost in the stacking direction among the plurality of stacked first sheet members 10 and the connecting portion 32 of the first connecting conductor 30.

[0068] The second conductive wire 80 is formed from the same member as the first conductive wire 70. The second conductive wire 80 is electrically connected to the second connection conductor 40 while being sandwiched between the outer surface of the second sheet member 20 located outermost in the stacking direction among the plurality of stacked second sheet members 20 and the connecting portion 42 of the second connection conductor 40.

[0069] For the power generation device 1 constructed as described above, multiple first sheet parts 10 and multiple second sheet parts 20 that are stacked alternately with each other generate electricity by switching between a first state in which no force acts from the outside in a direction pressing the first electrogenic layer 13 and the second electrogenic layer 23 against each other, and a second state in which a force acts from the outside in a direction pressing the first electrogenic layer 13 and the second electrogenic layer 23 against each other.

[0070] In the first state, if a force acts in a direction that presses the first electrogenic layer 13 and the second electrogenic layer 23 toward each other, the first electrogenic layer 13 and the second electrogenic layer 23 rub against each other, thereby causing positive charge in the first electrogenic layer 13 and negative charge in the second electrogenic layer 23.

[0071] In the second state, when the force pressing the first electrogenic layer 13 and the second electrogenic layer 23 against each other is released, electricity flows between the first electrode layer 12 and the second electrode layer 22 in a direction in which the potentials become equal.

[0072] As described above, the power generation device 1 according to the present embodiment includes a plurality of first sheet members 10, a plurality of second sheet members 20, a first connecting conductor 30, and a second connecting conductor 40. The first sheet member 10 includes a first electrogenic layer 13 on the outer surface side of the first electrode layer 12, and the second sheet member 20 includes a second electrogenic layer 23 on the outer surface side of the second electrode layer 22. Parts of each of the plurality of first sheet members 10 and parts of each of the plurality of second sheet members 20 are alternately connected. The first electrogenic layer 13 and the second electrogenic layer 23 are stacked, thereby facing each other. The power generating device 1 generates electricity by changing the contact state between the first electrogenic layer 13 and the second electrogenic layer 23. The first connecting conductor 30 passes through the other parts of each of the multiple first sheet parts 10 and is connected to the first electrode layer 12 of each of the multiple first sheet parts 10. The second connecting conductor 40 passes through the other parts of each of the multiple second sheet parts 20 and is connected to the second electrode layer 22 of each of the multiple second sheet parts 20.

[0073] Thus, by making the first connecting conductor 30 pass through the multiple first sheet parts 10 in the stacking direction, and making the second connecting conductor 40 pass through the multiple second sheet parts 20 in the stacking direction, the multiple first electrode layers 12 can be connected to the first connecting conductor 30, and the multiple second electrode layers 22 can be connected to the second connecting conductor 40, so that the electrical connection of the multiple first electrode layers 12 and the electrical connection of the multiple second electrode layers 22 can be easily performed.

[0074] Furthermore, it is preferable to provide a first insulating member 50 positioned between the plurality of first sheet members 10 and surrounding the outer periphery of the first connection conductor 30 , and a second insulating member 60 positioned between the plurality of second sheet members 20 and surrounding the outer periphery of the second connection conductor 40 .

[0075] This prevents the first connection conductor 30 from contacting the second electrode layer 22 of the second sheet member 20 , and prevents the second connection conductor 40 from contacting the first electrode layer 12 of the first sheet member 10 , thereby suppressing short circuits in the power generation device 1 .

[0076] Furthermore, the ratio Ti1 / Ts2 of the thickness Ti1 of the first insulating member 50 to the thickness Ts2 of the second sheet member 20 and the ratio Ti2 / Ts1 of the thickness Ti2 of the second insulating member 60 to the thickness Ts1 of the first sheet member 10 are preferably 0.8 or more and 1.2 or less.

[0077] Thus, the interval between adjacent first sheet parts 10 can be adjusted to the thickness Ts2 of the second sheet part 20 through the first insulating part 50, and the interval between adjacent second sheet parts 20 can be adjusted to the thickness Ts1 of the first sheet part 10 through the second insulating part 60, so that the thickness dimension can be made uniform over the entire power generation device 1.

[0078] In addition, it is preferable that one of the first electrogenic layer 13 and the second electrogenic layer 23 is formed from polyimide having a porous structure, and the other is formed from polyamide.

[0079] This can increase the generated voltage and further increase the amount of generated electricity.

[0080] In addition, it is preferred that the first connecting conductor 30 and the second connecting conductor 40 respectively have: a pair of through portions 31, 41, which penetrate the other parts of the multiple first sheet parts 10 and the multiple second sheet parts 20 in the stacking direction; and connecting portions 32, 42, which extend along the surface direction of the first sheet part 10 and the surface direction of the second sheet part 20, and connect the base ends of the pair of through portions 31, 41 to each other.

[0081] Thus, by making the through portion 31 of the first connecting conductor 30 penetrate the multiple stacked first sheet parts 10, the multiple first electrode layers 12 can be connected to the first connecting conductor 30, and by making the through portion 41 of the second connecting conductor 40 penetrate the multiple stacked second sheet parts 20, the multiple second electrode layers 22 can be connected to the second connecting conductor 40, thereby making it easy to connect the multiple first electrode layers 12 to the first connecting conductor 30, and to connect the multiple second electrode layers 22 to the second connecting conductor 40.

[0082] In addition, it is preferred to include: a first conductive wire 70, which is connected to the first connecting conductor 30; and a second conductive wire 80, which is connected to the second connecting conductor 40, the first conductive wire 70 being clamped between the connecting portion 32 of the first connecting conductor 30 and the first sheet member 10, and the second conductive wire 80 being clamped between the connecting portion 42 of the second connecting conductor 40 and the second sheet member 20.

[0083] This facilitates connection between the first connection conductor 30 and the first conductive wire 70 , and connection between the second connection conductor 40 and the second conductive wire 80 .

[0084] <Second embodiment>

[0085] Figure 5 The second embodiment of the present invention is shown in an exploded perspective view of a power generation device. Components identical to those in the previous embodiment are denoted by the same reference numerals.

[0086] The first connection conductor 30 and the second connection conductor 40 constituting the power generation device 1 of this embodiment are respectively thread-like members 33 and 43 formed by sewing together a plurality of first sheet members 10 stacked together with a plurality of first insulating members 50 and a plurality of second sheet members 20 stacked together with a plurality of second insulating members 60 .

[0087] The filamentary members 33 and 43 are each formed from a twisted wire obtained by twisting metal wires such as copper and aluminum, and have electrical conductivity.

[0088] The first conductive wire 70 is electrically connected to the first connection conductor 30 while being sandwiched between the outer surface of the first sheet member 10 located outermost in the stacking direction among the plurality of stacked first sheet members 10 and the wire member 33 .

[0089] The second conductive wire 80 is electrically connected to the second connection conductor 40 while being sandwiched between the outer surface of the second sheet member 20 located outermost in the stacking direction among the plurality of stacked second sheet members 20 and the wire member 43 .

[0090] In this way, according to the power generation device 1 of this embodiment, as in the aforementioned embodiment, by making the first connecting conductor 30 pass through the multiple first sheet parts 10 in the stacking direction, and making the second connecting conductor 40 pass through the multiple second sheet parts 20 in the stacking direction, the multiple first electrode layers 12 can be connected to the first connecting conductor 30, and the multiple second electrode layers 22 can be connected to the second connecting conductor 40, so that the electrical connection of the multiple first electrode layers 12 and the electrical connection of the multiple second electrode layers 22 can be easily performed.

[0091] Furthermore, it is preferable that the first connection conductor 30 and the second connection conductor 40 are conductive thread-like members 33 and 43 formed by sewing together a plurality of first sheet members 10 and a plurality of second sheet members 20, respectively.

[0092] Thus, by sewing the stacked multiple first sheet parts 10 by the thread-like part 33, the multiple first electrode layers 12 can be connected to the first connecting conductor 30, and by sewing the stacked multiple second sheet parts 20 by the thread-like part 43, the multiple second electrode layers 22 can be connected to the second connecting conductor 40, so that the connection between the multiple first electrode layers 12 and the first connecting conductor 30, and the connection between the multiple second electrode layers 22 and the second connecting conductor 40 can be easily performed.

[0093] In addition, it is preferred to include: a first conductive wire 70, which is connected to the first connecting conductor 30; and a second conductive wire 80, which is connected to the second connecting conductor 40, the first conductive wire 70 being clamped between the wire-like component 33 constituting the first connecting conductor 30 and the first sheet component 10, and the second conductive wire 80 being clamped between the wire-like component 43 constituting the second connecting conductor 40 and the second sheet component 20.

[0094] This facilitates connection between the first connection conductor 30 and the first conductive wire 70 , and connection between the second connection conductor 40 and the second conductive wire 80 .

[0095] <Third embodiment>

[0096] Figure 6 The third embodiment of the present invention is shown in a cross-sectional view of a power generation device. Components identical to those in the previous embodiment are denoted by the same reference numerals.

[0097] The power generating device 1 of the present embodiment includes a spacing member 90 that maintains a spacing between the first sheet member 10 and the second sheet member 20 that face each other in the stacking direction.

[0098] The spacer member 90 is, for example, an insulating plate-shaped member having a width of, for example, not less than 0.5 mm and not more than 10 mm and a length substantially equal to the short-side dimension of the first sheet member 10 and the second sheet member 20. The spacer member 90 has a thickness of, for example, not more than half the thickness of the first insulating member 50 and the second insulating member 60.

[0099] The spacer member 90 is disposed between the second sheet member 20 that is opposite to one side in the stacking direction relative to the end side of the first sheet member 10 located on the second insulating member 60 side, and between the first sheet member 10 that is opposite to one side in the stacking direction relative to the end side of the second sheet member 20 located on the first insulating member 50 side. The spacer member 90 is fixed to the end side of the first sheet member 10 located on the second insulating member 60 side and the end side of the second sheet member 20 located on the first insulating member 50 side.

[0100] For the power generating device 1 constructed as described above, in the first state where no force acts from the outside in the direction of pressing the first electrogenic layer 13 and the second electrogenic layer 23 against each other, the contact of the second sheet member 20 opposite to one side in the stacking direction with respect to the end side of the first sheet member 10 located on the side of the second insulating member 60 and the contact of the first sheet member 10 opposite to one side in the stacking direction with respect to the end side of the second sheet member 20 located on the side of the first insulating member 50 are restricted by the spacing retaining member 90.

[0101] In this way, according to the power generation device 1 of this embodiment, as in the aforementioned embodiment, by making the first connecting conductor 30 pass through the multiple first sheet parts 10 in the stacking direction, and making the second connecting conductor 40 pass through the multiple second sheet parts 20 in the stacking direction, the multiple first electrode layers 12 can be connected to the first connecting conductor 30, and the multiple second electrode layers 22 can be connected to the second connecting conductor 40, so that the electrical connection of the multiple first electrode layers 12 and the electrical connection of the multiple second electrode layers 22 can be easily performed.

[0102] In addition, it is preferred to provide a spacing maintaining member 90 for maintaining the interval between the first sheet member 10 and the second sheet member 20 that are opposite to each other in the stacking direction, and the spacing maintaining member 90 is arranged between the second sheet member 20 that is opposite to one side in the stacking direction with respect to the end side of the first sheet member 10 located on the second insulating member 60 side, and between the first sheet member 10 that is opposite to one side in the stacking direction with respect to the end side of the second sheet member 20 located on the first insulating member 50 side.

[0103] Thus, in the first state where no force acts from the outside in the direction of pressing the first electrogenic layer 13 and the second electrogenic layer 23 against each other, the contact of the second sheet part 20 opposite to one side in the stacking direction with respect to the end side of the first sheet part 10 located on the side of the second insulating part 60 and the contact of the first sheet part 10 opposite to one side in the stacking direction with respect to the end side of the second sheet part 20 located on the side of the first insulating part 50 are restricted, thereby suppressing the elimination of the electrified state in the first electrogenic layer 13 and the second electrogenic layer 23, thereby achieving an improvement in power generation efficiency.

[0104] It should be noted that, in the third embodiment, the spacer 90 is shown as being disposed between the second sheet member 20 that is opposed to one side in the stacking direction relative to the end side of the first sheet member 10 located on the second insulating member 60 side, and between the first sheet member 10 that is opposed to one side in the stacking direction relative to the end side of the second sheet member 20 located on the first insulating member 50 side, but the present invention is not limited to this. The spacer 90 may be disposed in at least one of the following: between the second sheet member 20 that is opposed to at least one side in the stacking direction relative to the end side of the first sheet member 10 located on the second insulating member 60 side, and between the first sheet member 10 that is opposed to at least one side in the stacking direction relative to the end side of the second sheet member 20 located on the first insulating member 50 side.

[0105] like Figure 7As shown, in the power generation device 1, the spacer member 90 can be disposed only between the second sheet members 20 that are opposite to one side in the stacking direction with respect to the end side of the first sheet member 10 that is located on the second insulating member 60 side. Compared to a power generation device without the spacer member 90, this power generation device 1 can also achieve improved power generation efficiency.

[0106] In addition, if Figure 8 As shown, in the power generating device 1, the spacer member 90 can be arranged between the second sheet members 20 that are opposite to each other in the stacking direction relative to the end side of the first sheet member 10 located on the second insulating member 60 side, and between the first sheet members 10 that are opposite to each other in the stacking direction relative to the end side of the second sheet member 20 located on the first insulating member 50 side. This power generating device 1 can limit contact between the second sheet members 20 that are opposite to each other in the stacking direction relative to the end side of the first sheet member 10 located on the second insulating member 60 side, and limit contact between the first sheet members 10 that are opposite to each other in the stacking direction relative to the end side of the second sheet member 20 located on the first insulating member 50 side, thereby further improving power generation efficiency.

[0107] Hereinafter, the power generation device 1 without the spacing member 90 and Figures 6 to 8 The results of power generation tests performed on the power generation device 1 including the spacing member 90 are shown.

[0108] The power generation test was carried out using a vertical presser and an oscilloscope.

[0109] The vertical press has a cylinder driven by compressed air.

[0110] A pressing portion for applying a compressive force in the thickness direction of the power generation device 1 is provided at the front end portion of the piston rod of the cylinder. The pressing portion has a square surface with a side length of 30 mm.

[0111] The air cylinder was fixed to the main body of the vertical presser with its axial direction oriented vertically and its pressing portion facing downward. The vertical presser drove the air cylinder with the power generation device 1 positioned below the pressing portion. This applied a 16 kg load to the power generation device 1 through the pressing portion, and the load was released 0.3 seconds after the load was applied.

[0112] In the power generation test, the voltage at the start of applying a load to the power generation device 1 by the vertical presser and at the time of releasing the load were measured with an oscilloscope, and the power generation output per second was calculated based on the following formula.

[0113] [Mathematical formula 1]

[0114]

[0115] In the above formula, P is the power output (W), V is the measured voltage (V), R is the oscilloscope probe resistance (Ω), and t is the measurement time during power generation.

[0116] The result of the power generation test showed that the power generation output of the power generation device 1 without the spacer 90 was 174 μW. Figure 6 The power generation output of the power generation device 1 with the spacing member 90 arranged as shown is 699 μW. Figure 7 The power generation output of the power generation device 1 with the spacing member 90 arranged as shown is 385 μW. Figure 8 The power generation output of the power generation device 1 with the spacing member 90 arranged as shown was 731 μW. That is, in the power generation test, it was confirmed that the power generation output of the power generation device 1 without the spacing member 90 was 731 μW. Figures 6 to 8 The power generation output of the power generation device 1 including the spacing member 90 shown is increased.

Claims

1. A power generation device comprising a plurality of first sheet members, a plurality of second sheet members, a first connection conductor, and a second connection conductor. The first sheet member has a first electrogenic layer on the outer surface side of the first electrode layer. The second sheet member has a second electrogenic layer on the outer surface side of the second electrode layer. A portion of each of the plurality of first sheet members and a portion of each of the plurality of second sheet members are stacked alternately, whereby the first electrogenic layer and the second electrogenic layer face each other. The power generation device generates electricity by changing the contact state between the first electrogenic layer and the second electrogenic layer. The first connection conductor penetrates other portions of each of the plurality of first sheet members and is connected to the first electrode layer of each of the plurality of first sheet members. The second connection conductor penetrates other portions of each of the plurality of second sheet members and is connected to the second electrode layer of each of the plurality of second sheet members.

2. The power generation device according to claim 1, comprising: a first insulating member positioned between the plurality of first sheet members and surrounding an outer periphery of the first connection conductor; and A second insulating member is positioned between the plurality of second sheet members and surrounds the outer periphery of the second connection conductor.

3. The power generation device according to claim 2, wherein: A ratio Ti1 / Ts2 of the thickness Ti1 of the first insulating member to the thickness Ts2 of the second sheet member and a ratio Ti2 / Ts1 of the thickness Ti2 of the second insulating member to the thickness Ts1 of the first sheet member are both 0.8 or more and 1.2 or less.

4. The power generation device according to claim 1, wherein: One of the first electrogenic layer and the second electrogenic layer is formed from polyimide having a porous structure, and the other is formed from polyamide.

5. The power generation device according to claim 1, wherein: The first connection conductor and the second connection conductor each have: a pair of through-holes that penetrate other portions of the plurality of first sheet members and the plurality of second sheet members in the stacking direction; and The connecting portion extends along the plane direction of the first sheet member and the plane direction of the second sheet member, and connects the base end portions of the pair of through portions.

6. The power generation device according to claim 5, comprising: a first conductive wire connected to the first connecting conductor; and a second wire connected to the second connecting conductor, The first conductive wire is sandwiched between the connecting portion of the first connecting conductor and the first sheet member. The second conductive wire is sandwiched between the connecting portion of the second connection conductor and the second sheet member.

7. The power generation device according to claim 1, wherein: The first connection conductor and the second connection conductor are conductive thread-like members formed by sewing a plurality of the first sheet members and a plurality of the second sheet members, respectively.

8. The power generation device according to claim 7, comprising: a first conductive wire connected to the first connecting conductor; and a second wire connected to the second connecting conductor, The first conductive wire is sandwiched between the wire-shaped member constituting the first connecting conductor and the first sheet member. The second conductive wire is sandwiched between the wire-shaped member constituting the second connection conductor and the second sheet member.

9. The power generating device according to claim 2, further comprising a spacing member for maintaining a spacing between the first sheet member and the second sheet member facing each other in the stacking direction. The spacing retaining member is arranged between the second sheet member that is opposite to at least one side in the stacking direction relative to the end side of the first sheet member located on the side of the second insulating member, and between the first sheet member that is opposite to at least one side in the stacking direction relative to the end side of the second sheet member located on the side of the first insulating member.

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