WO2019187653A1 - トランスデューサシート - Google Patents

トランスデューサシート Download PDF

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Publication number
WO2019187653A1
WO2019187653A1 PCT/JP2019/004098 JP2019004098W WO2019187653A1 WO 2019187653 A1 WO2019187653 A1 WO 2019187653A1 JP 2019004098 W JP2019004098 W JP 2019004098W WO 2019187653 A1 WO2019187653 A1 WO 2019187653A1
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WO
WIPO (PCT)
Prior art keywords
connection
pressure sensor
transducer sheet
transducer
sheet
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/JP2019/004098
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English (en)
French (fr)
Japanese (ja)
Inventor
高橋　渉
日比野　真吾
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sumitomo Riko Co Ltd
Original Assignee
Sumitomo Riko Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sumitomo Riko Co Ltd filed Critical Sumitomo Riko Co Ltd
Publication of WO2019187653A1 publication Critical patent/WO2019187653A1/ja
Priority to US16/884,036 priority Critical patent/US20200284666A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L1/00—Measuring force or stress, in general
    • G01L1/14—Measuring force or stress, in general by measuring variations in capacitance or inductance of electrical elements, e.g. by measuring variations of frequency of electrical oscillators
    • G01L1/142—Measuring force or stress, in general by measuring variations in capacitance or inductance of electrical elements, e.g. by measuring variations of frequency of electrical oscillators using capacitors
    • G01L1/146—Measuring force or stress, in general by measuring variations in capacitance or inductance of electrical elements, e.g. by measuring variations of frequency of electrical oscillators using capacitors for measuring force distributions, e.g. using force arrays
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L1/00—Measuring force or stress, in general
    • G01L1/14—Measuring force or stress, in general by measuring variations in capacitance or inductance of electrical elements, e.g. by measuring variations of frequency of electrical oscillators
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L1/00—Measuring force or stress, in general
    • G01L1/16—Measuring force or stress, in general using properties of piezoelectric devices
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L1/00—Measuring force or stress, in general
    • G01L1/26—Auxiliary measures taken, or devices used, in connection with the measurement of force, e.g. for preventing influence of transverse components of force, for preventing overload

Definitions

  • the present invention relates to a transducer sheet that converts input energy into output energy different from the input energy.
  • a transducer sheet that constitutes a pressure sensor that detects a working pressure by converting it into a voltage, an actuator that outputs a force according to the applied voltage, and the like has been proposed.
  • a transducer sheet for example, there is a sensor sheet that constitutes a pressure distribution sensor disclosed in Japanese Patent Application Laid-Open No. 2006-284404 (Patent Document 1), and a detection voltage that is output energy according to working pressure that is input energy. This is going to cause changes.
  • Patent Document 1 merely discloses a structure that enables a plurality of sensor sheets to be linearly arranged and connected in a specific direction.
  • Patent Document 2 Japanese Patent No. 5414682 (Patent Document 2), it is proposed to configure a tactile sensor applicable to the surface of a robot by connecting a plurality of tactile sensor modules to each other.
  • the tactile sensor module of Patent Document 2 has a structure in which either an input connection port or an output connection port is arranged on each of three sides of a triangular planar substrate. By connecting the connection port and the output connection port to each other, the tactile sensor can be configured with a surface shape with a greater degree of freedom.
  • both the input connection port and the output connection port can be connected only in the direction orthogonal to the side of the planar substrate. Connection cannot be made except in a direction orthogonal to the side of the flat substrate. Thus, the tactile sensor module of Patent Document 2 has a problem that the connectable direction is limited by the shape of the flat substrate.
  • JP 2006-284404 A Japanese Patent No. 5414682
  • the present invention has been made in the background of the above-described circumstances, and a solution to the problem is to provide a transducer sheet having a novel structure in which a plurality of elements can be connected to each other with a greater degree of freedom. There is.
  • the first aspect of the present invention is a transducer sheet, (i) a transducer sheet main body that converts input energy into another output energy, and (ii) a plurality of provided at a connection portion of the transducer sheet main body. And a connection connector capable of physically and electrically connecting the transducer sheet main body to each other in a plurality of directions at the connection portion.
  • a plurality of transducer sheet main bodies can be connected to each other in a plurality of directions by the connection connector, so that energy such as a target pressure-sensitive region can be obtained.
  • a transducer with a conversion region can be configured with great freedom by one or more transducer sheets.
  • connection connector allows not only physical connection of a plurality of transducer sheet bodies but also electrical connection, when a physical connection structure and an electrical connection structure are provided separately, In comparison, the structure of the transducer sheet can be simplified, and the connection work of a plurality of transducer sheets can be facilitated.
  • a second aspect of the present invention is the transducer sheet described in the first aspect, wherein a plurality of the transducer sheet main bodies can be connected in a plurality of different directions in plan by the connection connector.
  • a plurality of transducer sheet bodies can be connected so as to spread in a plane, and a transducer having a wider energy conversion region can be configured.
  • a third aspect of the present invention is the transducer sheet described in the first or second aspect, wherein a plurality of the transducer sheet main bodies can be connected in the thickness direction by the connection connector.
  • the third aspect by connecting a plurality of transducer sheet bodies so as to be stacked in the thickness direction, for example, a large amount of electricity as output energy with respect to pressure as input energy can be obtained, or as input energy The power as the output energy for electricity can be greatly obtained.
  • the amount of electricity to be output is, for example, a capacitance if the transducer is a capacitance type sensor, and the transducer is a piezoelectric type. If it is a sensor, it is the amount of generated charges.
  • connection connector is provided on both front and back surfaces of the transducer sheet main body.
  • connection connectors are provided on both the front and back surfaces, for example, a plurality of transducer sheet main bodies can be overlapped and connected to the front and back of the connection portion of one transducer sheet main body.
  • connection portions of the transducer sheet main body includes a plurality of connection connectors having the same polarity. It is what.
  • connection in a plurality of directions of the transducer sheet main body can be realized with a greater degree of freedom in the connection portion including a plurality of same-polarity connection connectors.
  • connection connectors are arranged at positions that form four corners of a rhombus.
  • the connection connectors arranged in the diagonal direction have the same polarity, and the connection connectors arranged adjacent to each other in the circumferential direction have different polarities.
  • the rhombus of this aspect is a quadrangle whose lengths of the four sides are equal to each other, and is not limited to the rhombic shape but includes a square.
  • connection connector is provided on an outer peripheral portion of the transducer sheet main body.
  • connection of the transducer sheet main body is realized in the outer peripheral portion, a large energy conversion region such as a pressure sensitive region can be secured in the inner peripheral portion.
  • the transducer sheet body includes a piezoelectric element having a structure in which electrodes are superimposed on both surfaces of a piezoelectric layer. It is what.
  • the positive effect of piezoelectricity in which mechanical force that is input energy is converted into electricity that is output energy, or electricity that is input energy is converted into mechanical force that is output energy.
  • a pressure sensor, a generator, an actuator, or the like can be configured by a transducer sheet using the inverse effect of piezoelectricity.
  • a plurality of the transducer sheet bodies can be connected in a detachable manner by the connection connector. Is.
  • connection by the connection connectors of the plurality of transducer sheet bodies can be redone as necessary. Accordingly, the connection directions of the plurality of transducer sheet bodies can be changed and set as necessary, and a plurality of types of transducers having different shapes and the like can be selectively configured according to the application.
  • one or a plurality of transducers having an energy conversion region such as a target pressure-sensitive region can be obtained by connecting a plurality of transducer sheet bodies to each other in a plurality of directions by a connection connector.
  • the transducer sheet can be configured with a large degree of freedom.
  • the connection connector allows not only physical connection of a plurality of transducer sheet bodies but also electrical connection, when a physical connection structure and an electrical connection structure are provided separately, In comparison, the structure of the transducer sheet can be simplified, and the connection work of a plurality of transducer sheets can be facilitated.
  • II-II sectional drawing of FIG. The figure which expands and shows a part of sensor sheet main body which comprises the pressure sensor sheet shown in FIG.
  • the figure which expands and shows the right end part of FIG. FIG. 5 is a VV cross-sectional view of FIG. 4.
  • VI-VI sectional drawing of FIG. The top view explaining the one connection aspect of the pressure sensor sheet
  • FIGS. 1 and 2 show a pressure sensor sheet 10 as a first embodiment of a transducer sheet having a structure according to the present invention.
  • the pressure sensor sheet 10 includes a sensor sheet body 12 as a transducer sheet body.
  • the up and down direction is the up and down direction in FIG. 2
  • the front and back direction is the up and down direction in FIG. 1
  • the left and right direction is FIG. Say the left and right directions inside.
  • the sensor sheet main body 12 has a thin strip shape as a whole, and has a structure in which a piezoelectric element 18 is disposed between the first protective layer 14 and the second protective layer 16. . Then, mechanical input energy (pressure) acting in the thickness direction on a pressure sensitive region 25 (described later) of the sensor sheet main body 12 is converted into electrical output energy (piezoelectricity) by the piezoelectric element 18. It has become.
  • the first protective layer 14 and the second protective layer 16 are formed of an electrically insulating material such as a synthetic resin elastomer or rubber, and are formed into a thin strip extending in the left-right direction as a whole.
  • the front and rear width dimensions of the left and right end portions constituting 34 are made smaller than the left and right intermediate portions.
  • the 1st protective layer 14 and the 2nd protective layer 16 are piled up mutually in the up-and-down direction, and the peripheral part is mutually fixed and it is made into the substantially bag shape which has space in the inside,
  • a piezoelectric element 18 is disposed between the one protective layer 14 and the second protective layer 16.
  • the fixing means at the outer peripheral portion of the first protective layer 14 and the second protective layer 16 is not particularly limited, and for example, bonding, welding, fixing by sewing, detachable fixing by a surface fastener, or the like may be employed. .
  • the piezoelectric element 18 has a rectangular band shape as a whole. As shown in FIG. 3, each of the first electrode layer 22 and the second electrode layer 24 as electrodes is provided on the upper and lower surfaces of the piezoelectric layer 20. Have a superposed structure.
  • the piezoelectric layer 20 has a rectangular band shape as shown in FIGS. 1 to 3 and is formed of a piezoelectric material, and applies piezoelectricity (voltage) having a magnitude corresponding to a load (pressure) input in the thickness direction. It has come to occur.
  • the material for forming the piezoelectric layer 20 only needs to have piezoelectricity, but it is desirable to have flexibility and stretchability.
  • a crosslinked rubber and a thermoplastic elastomer that have a relatively small elastic modulus and are flexible, A material in which piezoelectric particles, which are particles of a compound having piezoelectricity, are blended is used.
  • the elastomer is preferably, for example, urethane rubber, silicone rubber, nitrile rubber, hydrogenated nitrile rubber, acrylic rubber, natural rubber, isoprene rubber, ethylene-propylene-diene rubber, ethylene-vinyl acetate.
  • Copolymers, ethylene-vinyl acetate-acrylic acid ester copolymers, butyl rubber, styrene-butadiene rubber, fluorine rubber, epichlorohydrin rubber, chloroprene rubber, chlorinated polyethylene, chlorosulfonated polyethylene, thermoplastic polyurethane, etc. are suitably employed.
  • the urethane rubber silicone rubber, nitrile rubber, hydrogenated nitrile rubber, acrylic rubber, natural rubber, isoprene rubber, ethylene-propylene-diene rubber, ethylene-vinyl acetate.
  • piezoelectric compounds include barium titanate, strontium titanate, potassium niobate, sodium niobate, lithium niobate, potassium sodium niobate, potassium sodium niobate, lead zirconate titanate, barium titanate Examples include strontium, bismuth lanthanum titanate, and bismuth strontium tantalate.
  • the piezoelectric particles may be composed of only one kind of the above compound, or may be composed of a plurality of kinds. Further, from the viewpoint of making the piezoelectric layer 20 thin, the average particle diameter of the piezoelectric particles is preferably 10 ⁇ m or less.
  • the first electrode layer 22 and the second electrode layer 24 are thin-film conductors, and may be formed of metal.
  • the metal layer may be made of a polymer elastomer such as synthetic resin or rubber. It is formed of conductive ink or silver paste mixed with conductive fillers such as particles, metal oxide particles, metal carbide particles, metal nanowires, carbon black, carbon nanotubes, graphite, graphene, etc., and flexibly follows the piezoelectric layer 20 It is desirable to have elasticity and elasticity. More preferably, for example, metal nanowires, carbon nanotubes, thin-layer graphite, and graphene are employed as fillers having a large aspect ratio that can realize high flexibility and stretchability. Further, as shown in FIG.
  • the first and second electrode layers 22 and 24 are electrically in contact with the piezoelectric layer 20 by being superimposed on one surface of the piezoelectric layer 20 in a contact state. It is connected.
  • a pressure is applied to the piezoelectric layer 20
  • a potential difference corresponding to the applied pressure is generated between the first and second electrode layers 22 and 24.
  • the piezoelectric layer 20 and the first and second electrode layers 22 and 24 constituting the piezoelectric element 18 for example, a piezoelectric layer and an electrode layer described in Japanese Patent No. 6034543 are suitably applied.
  • the piezoelectric element 18 having such a structure is disposed between the first protective layer 14 and the second protective layer 16.
  • a vertical projection area of the piezoelectric element 18 indicated by a broken line in FIG. 1 is a pressure-sensitive area 25 as an energy conversion area in the pressure sensor sheet 10.
  • the piezoelectric element 18 is formed separately from the first and second protective layers 14 and 16 and is disposed in a contained state between the bag-like first and second protective layers 14 and 16. However, it may be formed integrally with the first and second protective layers 14 and 16.
  • the first electrode layer 22 is formed on the lower surface of the first protective layer 14 by printing
  • the second electrode layer 24 is formed on the upper surface of the second protective layer 16 by printing.
  • the piezoelectric element 18 may be integrally formed with the first and second protective layers 14 and 16 in a state where the piezoelectric element 18 is disposed between the first protective layer 14 and the second protective layer 16.
  • the first wiring 26 and the second wiring 28 are connected to the piezoelectric element 18.
  • the first and second wirings 26 and 28 are formed of a conductive material in the same manner as the first and second electrode layers 22 and 24, and the first wiring 26 is connected to the first electrode layer 22.
  • the second wiring 28 is connected to the second electrode layer 24 and extends to the left and right outer connection portions 34, 34.
  • the first and second wirings 26 and 28 are provided in a plane on the connection portions 34 and 34.
  • the first and second wirings 26 and 28 are multilayered with an insulating layer interposed therebetween.
  • the first and second wirings 26 and 28 can be connected to each other even in the connection portions 34 and 34 having a small projected area in the vertical direction. It can be provided in an insulated state.
  • the first wiring 26 may be integrally formed with the first electrode layer 22, but for example, the first electrode layer 22 is formed of a conductive ink in which carbon black is used as a conductive filler. At the same time, the first wiring 26 is formed of silver paste, thereby ensuring the conductivity of the first wiring 26 having a small cross-sectional area while reducing the cost of the first electrode layer 22 having a large cross-sectional area. Can do. Further, the second wiring 28 and the second electrode layer 24 can be formed of the same material as each other and can be formed of different materials.
  • the first wiring 26 is connected to a first connection connector 30 as a connection connector
  • the second wiring 28 is connected to a second connection connector 32 as a connection connector.
  • the first and second connection connectors 30 and 32 are formed of a conductive material such as metal or conductive resin, for example, and have a thick, substantially disk shape. It arrange
  • the first connection connector 30 is connected to the first electrode layer 22 by the first wiring 26, and the second connection connector 32 is connected to the second electrode layer 24 by the second wiring 28.
  • the first connection connector 30 and the second connection connector 32 are one of a positive electrode and a negative electrode.
  • the first and second connection connectors 30 and 32 are provided on the upper and lower surfaces of the sensor sheet main body 12, and both the left and right ends of the first protective layer 14 constituting the connection portions 34 and 34 and the second. In both the left and right end portions of the protective layer 16, a plurality are respectively provided penetrating in the vertical direction and fixed to either the first or second protective layer 14, 16.
  • the plurality of first connection connectors 30 have a concave cross-section first connection connector 30 a (see FIGS. 5 and 6) having a recess 36 that opens to the upper and lower outer sides in the inner peripheral portion. ) And a first connection connector 30b having a convex cross section having a convex portion 38 projecting upward and downward on the inner peripheral portion.
  • two first connection connectors 30 a are arranged on both the upper and lower surfaces of the right connection portion 34
  • two first connection connectors 30 b are arranged on the upper and lower surfaces of the left connection portion 34.
  • the first connecting connector 30a and the first connecting connector 30b are physically connected by fitting the convex portion 38 of the first connecting connector 30b into the concave portion 36 of the first connecting connector 30a. It is designed to be electrically connected.
  • the plurality of second connection connectors 32 protrudes toward the upper and lower outer sides at the inner peripheral portion and the second connection connector 32a having a concave cross section having a recess 36 that opens toward the upper and lower outer sides at the inner peripheral portion.
  • a second connecting connector 32b (see FIGS. 5 and 6) having a convex cross section having a convex portion 38.
  • two second connection connectors 32 b are arranged on both the upper and lower surfaces of the right connection portion 34
  • two second connection connectors 32 a are arranged on the upper and lower surfaces of the left connection portion 34.
  • Each of the first connection connectors 30a and 30b and the second connection connectors 32a and 32b of the present embodiment has a spring hook-like structure, and the convex portion 38 is detachably fitted to the concave portion 36. be able to. Thereby, it is possible to redo the connection of the pressure sensor sheet
  • the first connecting connector 30 and the second connecting connector 32 are provided with convex portions and concave portions having different shapes, and the convex portions or concave portions of the first connecting connector 30 and the concave portions or convex portions of the second connecting connector 32 are provided.
  • the first connection connector 30 and the second connection connector 32 may be prevented from being erroneously connected by preventing the portion from being fitted.
  • first connection connectors 30a and 30a and the two second connection connectors 32b and 32b fixed to the first protective layer 14 in the right connection portion 34 have four sides having the same length.
  • the shape is located at the four corners of a square (an alternate long and short dash line in FIG. 4) as one aspect of the rhombus, and the two first connection connectors 30a and 30a are arranged opposite to each other in one diagonal direction.
  • Two second connection connectors 32b and 32b are arranged opposite to each other in the diagonal direction.
  • first connection connectors 30a are arranged at the upper left and lower right corners of the square
  • second connection connectors 32b are arranged at the lower left and upper right corners of the square. ing.
  • first connection connectors 30a, 30a facing each other in the diagonal direction of the square are both connected to the first electrode layer 22 and have the same polarity, and the other of the squares
  • the two second connection connectors 32b and 32b that face each other in the diagonal direction are both connected to the second electrode layer 24 and have the same polarity.
  • the first connection connector 30a and the second connection connector 32b are alternately arranged in the circumferential direction of the square, and two connection connectors adjacent in the circumferential direction of the square are first and second electrode layers. They are connected to one of 22 and 24 and have different polarities.
  • first connection connectors 30a and 30a and the two second connection connectors 32b and 32b fixed to the second protective layer 16 in the right connection portion 34 are similarly arranged in a top view.
  • first connection connectors 30 a and 30 a fixed to the first protective layer 14 and the first connection fixed to the second protective layer 16 in the right connection portion 34.
  • the connection connectors 30 a and 30 a are arranged vertically at positions corresponding to each other, and the second connection connectors 32 b and 32 b fixed to the first protective layer 14 and the second protective layer 16 fixed to the second protective layer 16.
  • Two connection connectors 32b and 32b are arranged vertically at positions corresponding to each other.
  • first connection connectors 30b and 30b and the two second connection connectors 32a and 32a fixed to the first protective layer 14 in the left connection portion 34 are formed by virtual square corners (not shown).
  • the two first connection connectors 30b, 30b are arranged opposite to each other in one diagonal direction, and the two second connection connectors 32a, 32a are opposed in the other diagonal direction. It is arranged.
  • the first connection connector 30b is disposed at the upper left corner and the lower right corner of the square
  • the second connection connector 32a is disposed at the lower left corner and the upper right corner of the square. ing.
  • the two first connection connectors 30b, 30b facing each other in the diagonal direction of the square are both connected to the first electrode layer 22 and have the same polarity, and the other of the squares
  • the two second connection connectors 32a and 32a that face each other in the diagonal direction are both connected to the second electrode layer 24 and have the same polarity.
  • the first connection connector 30b and the second connection connector 32a are alternately arranged in the circumferential direction of the square, and the two connection connectors adjacent in the circumferential direction of the square are the first and second electrode layers. They are connected to one of 22 and 24 and have different polarities.
  • first connection connectors 30b and 30b and the two second connection connectors 32a and 32a fixed to the second protective layer 16 in the left connection portion 34 are similarly arranged in a top view.
  • first connection connectors 30b and 30b fixed to the first protective layer 14 and the first connection connectors 30b and 30b fixed to the second protective layer 16 correspond to each other.
  • the second connection connectors 32a and 32a fixed to the first protective layer 14 and the second connection connectors 32a and 32a fixed to the second protective layer 16 It is arranged up and down at positions corresponding to each other.
  • first connection connectors 30 a, 30 a, 30 a, 30 a provided in the right connection portion 34 are connected to one first wiring 26.
  • the first connection connectors 30a and 30a arranged up and down at positions corresponding to each other are connected to the same first wiring 26 by arranging the first wiring 26 in a contact state between the upper and lower sides. Yes. Accordingly, the four first connection connectors 30 a, 30 a, 30 a, and 30 a provided on the right connection portion 34 are all connected to the first electrode layer 22 through the first wiring 26.
  • first connection connectors 30b, 30b, 30b, 30b provided in the left connection portion 34 are also connected to the other first wiring 26 in the same manner.
  • the four second connection connectors 32 b, 32 b, 32 b, 32 b, 32 b provided in the right connection portion 34 are connected to one second wiring 28.
  • the second connection connectors 32b and 32b arranged up and down at positions corresponding to each other are connected to the same second wiring 28 by arranging the second wiring 28 in a contact state between the upper and lower sides. Yes.
  • the four second connection connectors 32 b, 32 b, 32 b, 32 b provided on the right connection portion 34 are all connected to the second electrode layer 24 via the second wiring 28.
  • the four second connection connectors 32a, 32a, 32a, 32a, 32a provided in the left connection portion 34 are also connected to the other second wiring 28 in the same manner.
  • connection portions 34, 34 provided at the left and right ends of the sensor sheet main body 12 are connected to the plurality of first connection connectors 30 connected to the first electrode layer 22 and the second electrode layer 24.
  • a plurality of connected second connection connectors 32 are provided so as to be exposed from the electrically insulative first and second protective layers 14 and 16.
  • the pressure sensor sheet 10 having such a structure can be physically and electrically connected to other pressure sensor sheets 10 in a plurality of directions at the connection portions 34 and 34 at both left and right ends.
  • connection modes of the plurality of pressure sensor sheets 10 shown in FIGS. 7 to 10 will be described. 7 to 10, the first connection connector 30 is indicated by a white circle and the second connection connector 32 is indicated by a black circle for easy understanding.
  • FIG. 7 shows a pressure sensor 40 as a transducer.
  • the pressure sensor 40 has a structure in which two pressure sensor sheets 10 and 10 are connected in a straight line in the left-right direction. More specifically, in FIG. 7, the left end connection portion 34 of the right pressure sensor sheet 10 is superimposed on the right end connection portion 34 of the left pressure sensor sheet 10 from the upper side.
  • connection part 34 of the left end of the pressure sensor sheet 10 of the right side with respect to each recessed part 36 of the 1st connection connectors 30a and 30a provided in the connection part 34 of the right end of the pressure sensor sheet 10 of the left side.
  • the convex portions 38 of the first connection connectors 30b and 30b are fitted, and the first connection connectors 30a and 30a and the first connection connectors 30b and 30b are physically connected.
  • the convex portions 38 of the second connection connectors 32b and 32b provided at the right end connection portion 34 of the left pressure sensor sheet 10 are provided at the left end connection portion 34 of the right pressure sensor sheet 10.
  • the second connection connectors 32b and 32b and the second connection connectors 32a and 32a are physically connected by being fitted into the respective concave portions 36 of the second connection connectors 32a and 32a.
  • both the first connection connector 30a and the first connection connector 30b are conductors, the first connection connector 30a and the first connection connector 30b are physically connected by concave and convex fitting. At the same time, it is electrically connected. As a result, the first electrode layer 22 of the left pressure sensor sheet 10 and the first electrode layer 22 of the right pressure sensor sheet 10 are electrically connected by the connection of the first connection connector 30a and the first connection connector 30b. To function as a substantially integral electrode.
  • the second connection connector 32a and the second connection connector 32b are both conductors, the second connection connector 32a and the second connection connector 32b are physically connected by concave and convex fitting. At the same time, it is electrically connected. Thereby, the second electrode layer 24 of the left pressure sensor sheet 10 and the second electrode layer 24 of the right pressure sensor sheet 10 are electrically connected by the connection of the second connection connector 32a and the second connection connector 32b. To function as a substantially integral electrode.
  • the pressure sensor 40 having a wider pressure-sensitive region in the left-right direction can be configured by the two pressure sensor sheets 10 and 10.
  • FIG. 8 shows a pressure sensor 42 as a transducer.
  • the pressure sensor 42 has a structure in which two pressure sensor sheets 10 and 10 are connected in a state in which the two pressure sensor sheets 10 and 10 are arranged in a bowl shape so that their length directions are orthogonal to each other.
  • one pressure sensor sheet 10 (rear pressure sensor sheet 10) is arranged to be longitudinal in the front-rear direction, and the other pressure sensor sheet 10 (right pressure The sensor sheet 10) is disposed so as to be longitudinal in the left-right direction, and the pressure sensor sheets 10, 10 are disposed in a direction substantially orthogonal to each other on substantially the same plane.
  • the rear pressure sensor sheet 10 is rotated 90 ° clockwise with respect to the right pressure sensor sheet 10 so that the longitudinal direction is the longitudinal direction.
  • the left end connection portion 34 of the right pressure sensor sheet 10 is overlapped with the front end connection portion 34 of the rear pressure sensor sheet 10 from above.
  • the left half of the left connection portion 34 of the right pressure sensor sheet 10 is superimposed on the right half of the front connection portion 34 of the rear pressure sensor sheet 10.
  • connection connector 30b provided in the connection part 34 of the left end of the pressure sensor sheet 10 of the right side with respect to the recessed part 36 of the 1st connection connector 30a provided in the connection part 34 of the front end of the pressure sensor sheet 10 of the rear side.
  • the projection 38 of the connection connector 30b is fitted, and the first connection connector 30a and the first connection connector 30b are physically and electrically connected.
  • the convex portion 38 of the second connection connector 32 b provided at the front connection portion 34 of the rear pressure sensor sheet 10 is provided in the second connection portion 34 provided at the left end connection portion 34 of the right pressure sensor sheet 10.
  • the second connection connector 32b and the second connection connector 32a are physically and electrically connected by being fitted into the recess 36 of the connection connector 32a.
  • the first electrode layer 22 of the rear pressure sensor sheet 10 and the first electrode layer 22 of the right pressure sensor sheet 10 are electrically connected by the connection of the first connection connector 30a and the first connection connector 30b. Connected to each other and function as a substantially integral electrode. Further, the second electrode layer 24 of the rear pressure sensor sheet 10 and the second electrode layer 24 of the right pressure sensor sheet 10 are electrically connected by the connection of the second connection connector 32a and the second connection connector 32b. To function as a substantially integral electrode.
  • the two pressure sensor sheets 10 and 10 are arranged side by side so as to be substantially orthogonal to each other on substantially the same plane, so that the pressure sensing region 25 of the rear pressure sensor sheet 10 and the right pressure sensor sheet 10 are sensed.
  • region 25 functions integrally, and the pressure sensor 42 which has a pressure-sensitive area
  • one pressure sensor sheet 10 when connecting the two pressure sensor sheets 10, 10, one pressure sensor sheet 10 is connected to the other pressure sensor sheet 10 in a plurality of directions different from each other in plan view. It is possible. Specifically, in this embodiment, one pressure sensor sheet 10 can be selectively connected to the other pressure sensor sheet 10 at an angle of 90 °, 180 °, or 270 °.
  • FIG. 9 shows a pressure sensor 44 as a transducer.
  • the pressure sensor 44 has a structure in which two pressure sensor sheets 10 and 10 extending in the left-right direction and two pressure sensor sheets 10 and 10 extending in the front-rear direction are arranged and connected to form a cross. Yes. That is, in FIG. 9, four pressure sensor sheets 10, 10, 10, and 10 are connected linearly to the plurality of pressure sensor sheets 10 shown in FIG. 7 and 90 of the plurality of pressure sensor sheets 10 shown in FIG. ° It is connected in a cross shape by combining with a bent hook-shaped connection mode.
  • the connecting portion 34 at the rear end of the front pressure sensor sheet 10 and the connecting portion 34 at the front end of the rear pressure sensor sheet 10 are overlapped and connected vertically.
  • the right end connecting portion 34 of the left pressure sensor sheet 10 is overlapped and connected from the upper side to the left half of the connecting portions 34, 34 of the front and rear pressure sensor sheets 10, 10 connected to each other.
  • the connecting portion 34 at the left end of the right pressure sensor sheet 10 is overlapped and connected to the right half of the connecting portions 34 and 34 of the front and rear pressure sensor sheets 10 and 10 connected to each other. ing.
  • the four pressure sensor sheets 10, 10, 10, and 10 function as an integral electrode layer by physically and electrically connecting the first electrode layers 22, 22, 22, and 22 to each other.
  • the second electrode layers 24, 24, 24, 24 are physically and electrically connected to each other so as to function as an integral electrode layer. Accordingly, the pressure sensitive areas 25 of the four pressure sensor sheets 10, 10, 10, 10 function integrally, and the pressure sensor 44 having the pressure sensitive areas spreading in a cross shape can be configured.
  • FIG. 9 shows an example in which the four pressure sensor sheets 10, 10, 10, and 10 are connected in a cross shape, the linear connection of the plurality of pressure sensor sheets 10 shown in FIG. 7 and the example shown in FIG.
  • the plurality of pressure sensor sheets 10 may be connected in a lattice shape by combining the plurality of pressure sensor sheets 10 with a 90 ° bent connection.
  • FIG. 10 shows a pressure sensor 46 as a transducer.
  • the pressure sensor 46 has a structure in which two pressure sensor sheets 10 and 10 are stacked in the vertical direction, which is the thickness direction, and are physically and electrically connected in a three-dimensional stacked state.
  • the upper pressure sensor sheet 10 is arranged in a state of being rotated 180 ° with respect to the lower pressure sensor sheet 10 about a rotation axis extending in the vertical direction.
  • the upper pressure sensor sheet 10 is provided with the first connection connectors 30a and 30a and the second connection connectors 32b and 32b at the left end connection portion 34, and at the right end connection portion 34 with the first connection connector 34a.
  • Connection connectors 30b and 30b and second connection connectors 32a and 32a are provided.
  • the first connection connectors 30b and 30b and the second connection connectors 32a and 32a provided on the lower surface of the right end connection portion 34 of the upper pressure sensor sheet 10 are connected to the right end of the lower pressure sensor sheet 10.
  • the first connection connectors 30a and 30a and the second connection connectors 32b and 32b provided on the upper surface of the portion 34 are connected by uneven fitting.
  • the first connection connectors 30a, 30a and the second connection connectors 32b, 32b provided on the lower surface of the left end connection portion 34 in the upper pressure sensor sheet 10 are connected to the left end in the lower pressure sensor sheet 10.
  • the first connection connectors 30b and 30b and the second connection connectors 32a and 32a provided on the upper surface of the portion 34 are connected by concave and convex fitting.
  • first electrode layer 22 of the upper pressure sensor sheet 10 and the first electrode layer 22 of the lower pressure sensor sheet 10 are electrically connected by the connection of the first connection connector 30a and the first connection connector 30b.
  • second electrode layer 24 of the upper pressure sensor sheet 10 and the second electrode layer 24 of the lower pressure sensor sheet 10 are connected to the second connection connector 32a and the second connection connector 32b. Is electrically connected.
  • the pressure sensor 46 formed by connecting the two pressure sensor sheets 10 and 10 in a stacked state in which the two pressure sensor sheets 10 and 10 are stacked in the vertical direction, the voltage generated by the piezoelectric action increases with respect to the pressure input in the vertical direction. Therefore, the pressure detection accuracy can be improved.
  • the pressure sensor sheets 10 and 10 arranged adjacent to each other in the overlapping direction are arranged in a direction rotated relatively by 180 °, whereby the first connection connector 30a and the first connection connector 30b. Can be connected in the vertical direction, and the second connection connector 32a and the second connection connector 32b can be connected in the vertical direction.
  • a plurality of structures 46 shown in FIG. 10 in which a plurality of pressure sensor sheets 10 are connected in a stacked state in the vertical direction are further connected to each other on a plane orthogonal to the vertical direction as shown in FIGS.
  • a pressure sensor can be configured, and a plurality of pressure sensor sheets 10 can be connected to each other not only in the vertical direction but also in a plurality of directions.
  • the pressure sensor it is possible to improve detection accuracy by stacking while setting a wide pressure-sensitive region.
  • the transducer is a piezoelectric sensor
  • the amount of generated charge is doubled by stacking two sensor sheets, and when the transducer is a capacitive sensor, two sensor sheets are stacked.
  • the piezoelectric layer 20 is a thin film, the volume when stacked can be reduced, and the amount of generated charge per unit volume can be increased.
  • the sensor sensitivity per unit volume can be improved when a pressure sensor is configured with the transducer sheet, while the displacement amount when the actuator is configured, The amount of power generation when configuring a machine can also be improved.
  • the plurality of pressure sensor sheets 10 are appropriately connected to meet the required pressure-sensitive region shape, size, detection sensitivity, or the like. A pressure sensor can be obtained easily.
  • the specific shape of the transducer sheet main body is not limited to the belt shape like the sensor sheet main body 12 shown in the above embodiment, and may be a rectangular sheet shape having a square energy conversion region, or a polygon other than a rectangle. It is a sheet shape corresponding to the shape of the required energy conversion region, the shape of the installation surface, etc.
  • the transducer sheet main body connected by the connection connector may be different in shape and structure.
  • the connecting portions are not necessarily provided at two places on the transducer sheet main body, but may be provided at only one place, or may be provided at three or more places. Moreover, although it is desirable to provide a connection part in the outer peripheral part of a transducer sheet main body, it can also be provided in an inner peripheral part.
  • connection angle circumferential planar connection direction
  • connection angle can be set as appropriate depending on the arrangement of the connection connectors and the like, and is not necessarily 90 °, 180 °, 270 as in the above embodiment. It is not limited to the three directions of °.
  • a pressure sensor sheet 50 as a transducer sheet as shown in FIG. 11 may be employed.
  • the pressure sensor sheet 50 includes one first connection connector 30 and two second connection connectors 32 arranged so as to be equidistant from the first connection connector 30 in one connection portion 52. , 32 are provided, and each of the first connection connector 30 and the second connection connector 32 is arranged in the width direction in the other connection portion 54. And with respect to either of the two second connection connectors 32 and 32 provided in the connection part 52 of one pressure sensor sheet 50, the second provided in the connection part 54 of the other pressure sensor sheet 50 is provided. By selectively connecting the connector 32, the pressure sensor sheets 50 and 50 can be connected on substantially the same plane.
  • one pressure sensor sheet 50 can be connected to the other pressure sensor sheet 50 at an angle of 135 ° or 225 °. Further, as shown by a two-dot chain line in FIG. 11, another second connection connector 32 provided in the connection portion 52 of one pressure sensor sheet 50 is selected, and the other pressure sensor sheet 50 is changed to one pressure sensor. It is possible to connect the sensor sheet 50 in a different direction, and connect the added third pressure sensor sheet 50 to one pressure sensor sheet 50 in a direction different from the other pressure sensor sheet 50. You can also
  • connection connectors including two first connection connectors 30 and 30 and two second connection connectors 32 and 32 are arranged at the connection portions 34 and 34 at both ends of the pressure sensor sheet 10, respectively.
  • the pressure sensor sheet 10 does not need to be turned upside down in any connection direction, but the pressure sensor sheet 10 is turned upside down and connected as necessary. By doing so, the connection in each direction can be realized with fewer connection connectors.
  • one connection portion 34 of the pressure sensor sheet 10 is provided with a total of four connection connectors of two first connection connectors 30 and 30 and two second connection connectors 32 and 32, and pressure
  • one first connection connector 30 and one second connection connector 32, on the other connection portion 34 of the sensor sheet 10 in each direction that can be connected in the embodiment. Can be realized.
  • connection connector is merely an example, and other structures can be adopted as long as physical connection and electrical connection can be realized at the same time.
  • a physical and electrical connection can be detachably realized by using a conductive magnet, a spring hook, an adhesive tape, a hook-and-loop fastener, an adhesive, an adhesive, and the like.
  • connection connector is formed of conductive adhesive tape, hook-and-loop fastener, adhesive, adhesive, etc., the transducer sheets that are connected to each other by the connection connector if the connection position between the connection connectors is adjusted appropriately The relative position can be adjusted to some extent in the surface direction.
  • a C-shaped annular snap ring can be used as a connection connector.
  • a snap ring as a connection connector is arranged so that the opening on the circumference of the snap ring opens toward the outer circumference at one connection portion of the pressure sensor sheet, and the thickness is formed at the other connection portion of the pressure sensor sheet.
  • the connecting connector may be allowed to change its position on the transducer sheet body.
  • the connector can be slidably displaced with respect to the transducer sheet body, and the displacement of the connector can be allowed in the surface direction of the transducer sheet body to cope with component dimensional errors and manufacturing errors.
  • transformation of the transducer sheet main body between several connection connectors can also accept
  • one of the connected connectors is a structure having a planar extension such as a hook-and-loop fastener, for example, the position of the other connected connector is appropriately set on the surface of the one connected connector. A substantial change in the position of the connector can be allowed.
  • the plurality of piezoelectric elements 18 are connected to each other in the vertical direction so that the plurality of stacked piezoelectric elements 18 are connected to the first protective layer 14 and the first protective layer 14.
  • the pressure detection accuracy of the pressure sensor sheet 10 can be increased.
  • a plurality of pressure sensor sheets 10 including a plurality of piezoelectric elements 18 are connected in a stacked state in the thickness direction, the pressure detection accuracy can be further improved.
  • the pressure sensor sheet 10 of the embodiment can be connected to other pressure sensor sheets 10 in a plurality of directions, and has flexibility and stretchability, and thus has a curved surface, unevenness, and the like.
  • the pressure can be detected by attaching it to a complicated deformed surface or a surface causing deformation.
  • the piezoelectric element 18 is divided into a plurality of parts in the left-right direction, and the electrode layers of the plurality of divided piezoelectric elements are electrically connected to each other. It is also possible to function as the piezoelectric element 18. In other words, by connecting a plurality of piezoelectric elements in the left-right direction and connecting them in a conductive state in one pressure sensor sheet body 12, the connected plurality of piezoelectric elements can be made to function integrally. According to this, since a large piezoelectric element is configured by combining small piezoelectric elements, it is possible to easily manufacture the piezoelectric element as compared with the case where the large piezoelectric elements are integrally formed.
  • the piezoelectric pressure sensor sheet 10 that detects pressure based on a change in voltage due to piezoelectric action is shown.
  • the transducer sheet is based on a change in capacitance, for example.
  • Capacitance type pressure sensor sheet that detects pressure
  • power generation sheet that obtains electric power by converting mechanical energy such as pressure into electric energy
  • actuator sheet that converts electric energy into mechanical energy and outputs it, etc. Also good.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Force Measurement Appropriate To Specific Purposes (AREA)
PCT/JP2019/004098 2018-03-26 2019-02-05 トランスデューサシート Ceased WO2019187653A1 (ja)

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WO2019031414A1 (ja) * 2017-08-09 2019-02-14 三井化学株式会社 センサモジュール及びこれを備えた圧力分布センサ
JP7346189B2 (ja) 2019-09-17 2023-09-19 株式会社プロスパイラ 防振装置
JP7576418B2 (ja) * 2020-09-16 2024-10-31 株式会社ジャパンディスプレイ 圧力センサ

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002371694A (ja) * 2001-06-19 2002-12-26 Ilc:Kk 床材管理システム
JP2011043442A (ja) * 2009-08-21 2011-03-03 Hiroshima Univ 変動荷重検出パッド及びこれを用いた変動荷重検出板、分布型変動荷重検出板、並びに変動荷重検出装置
JP2013542523A (ja) * 2010-10-12 2013-11-21 ニューヨーク・ユニバーシティ タイルを利用してセンシングするための装置、一連のプレートを有するセンサ、マルチタッチ表面のためのオブジェクト識別及び方法
DE102015101326A1 (de) * 2015-01-29 2016-08-04 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Messvorrichtung und Umformvorrichtung mit einer Messvorrichtung

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000131162A (ja) * 1998-10-28 2000-05-12 Ks Techno Kk 敷物センサ
WO2007069412A1 (ja) * 2005-12-14 2007-06-21 The University Of Electro-Communications 二次元分布荷重中心位置検出センサおよび二次元分布荷重中心位置検出装置
ITTO20070779A1 (it) * 2007-11-05 2009-05-06 Fond Istituto Italiano Di T Ec Disposizione di sensori tattili e sistema sensoriale corrispondente
IL225374A0 (en) * 2013-03-21 2013-07-31 Noveto Systems Ltd Array@Matamari
US9766171B2 (en) * 2014-03-17 2017-09-19 Columbia Insurance Company Devices, systems and method for flooring performance testing
JP6046103B2 (ja) * 2014-10-03 2016-12-14 財團法人工業技術研究院Ｉｎｄｕｓｔｒｉａｌ Ｔｅｃｈｎｏｌｏｇｙ Ｒｅｓｅａｒｃｈ Ｉｎｓｔｉｔｕｔｅ 圧力アレイセンサモジュールおよびその製造方法
JP6488698B2 (ja) * 2014-12-25 2019-03-27 ヤマハ株式会社 外力検出アレイモジュール
EP3291317B1 (en) * 2015-04-30 2019-04-10 Teijin Limited Piezoelectric element and device using same

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002371694A (ja) * 2001-06-19 2002-12-26 Ilc:Kk 床材管理システム
JP2011043442A (ja) * 2009-08-21 2011-03-03 Hiroshima Univ 変動荷重検出パッド及びこれを用いた変動荷重検出板、分布型変動荷重検出板、並びに変動荷重検出装置
JP2013542523A (ja) * 2010-10-12 2013-11-21 ニューヨーク・ユニバーシティ タイルを利用してセンシングするための装置、一連のプレートを有するセンサ、マルチタッチ表面のためのオブジェクト識別及び方法
DE102015101326A1 (de) * 2015-01-29 2016-08-04 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Messvorrichtung und Umformvorrichtung mit einer Messvorrichtung

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