WO2015104764A1 - Appareil d'entrée et procédé d'entrée d'appareil d'entrée - Google Patents

Appareil d'entrée et procédé d'entrée d'appareil d'entrée Download PDF

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Publication number
WO2015104764A1
WO2015104764A1 PCT/JP2014/006339 JP2014006339W WO2015104764A1 WO 2015104764 A1 WO2015104764 A1 WO 2015104764A1 JP 2014006339 W JP2014006339 W JP 2014006339W WO 2015104764 A1 WO2015104764 A1 WO 2015104764A1
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WO
WIPO (PCT)
Prior art keywords
movable contact
signal
input device
control unit
capacitance
Prior art date
Application number
PCT/JP2014/006339
Other languages
English (en)
Japanese (ja)
Inventor
直志 高木
岡田　裕康
信二 搆口
琢磨 別司
Original Assignee
パナソニックＩｐマネジメント株式会社
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 パナソニックＩｐマネジメント株式会社 filed Critical パナソニックＩｐマネジメント株式会社
Publication of WO2015104764A1 publication Critical patent/WO2015104764A1/fr

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
    • H01H13/50—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a single operating member
    • H01H13/64—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a single operating member wherein the switch has more than two electrically distinguishable positions, e.g. multi-position push-button switches
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2239/00—Miscellaneous
    • H01H2239/006—Containing a capacitive switch or usable as such
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K2217/00—Indexing scheme related to electronic switching or gating, i.e. not by contact-making or -breaking covered by H03K17/00
    • H03K2217/94—Indexing scheme related to electronic switching or gating, i.e. not by contact-making or -breaking covered by H03K17/00 characterised by the way in which the control signal is generated
    • H03K2217/94036—Multiple detection, i.e. where different switching signals are generated after operation of the user is detected at different time instants at different locations during the actuation movement by two or more sensors of the same or different kinds
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K2217/00—Indexing scheme related to electronic switching or gating, i.e. not by contact-making or -breaking covered by H03K17/00
    • H03K2217/94—Indexing scheme related to electronic switching or gating, i.e. not by contact-making or -breaking covered by H03K17/00 characterised by the way in which the control signal is generated
    • H03K2217/96—Touch switches
    • H03K2217/96054—Double function: touch detection combined with detection of a movable element

Definitions

  • the present invention relates to an input device used in an operation unit of various electronic devices and an input method of the input device.
  • FIG. 13 is a cross-sectional view of a conventional input device 500.
  • FIG. 14 is a cross-sectional view showing the first-stage switch operation of the input device 500.
  • FIG. 15 is a cross-sectional view showing the second-stage switch operation.
  • the input device 500 includes a switch sheet 40 and a wiring board 3.
  • the switch sheet 40 includes a base sheet 1 made of an insulating film, an adhesive 1 ⁇ / b> A formed on the lower surface of the base sheet 1, and the movable contact 2.
  • the movable contact 2 having a circular shape in a top view formed in a dome shape is held on the lower surface of the base sheet 1 with an adhesive 1A.
  • the switch sheet 40 is bonded to the upper surface of the wiring board 3 with an adhesive 1A.
  • an outer fixed contact 3 ⁇ / b> A corresponding to the lower end of the outer periphery of the movable contact 2 and a central fixed contact 3 ⁇ / b> B corresponding to the lower surface of the central portion of the movable contact 2 are arranged electrically independently.
  • the lower end of the outer periphery of the movable contact 2 is in contact with the outer fixed contact 3A.
  • the lower surface of the central portion of the movable contact 2 is opposed to the upper surface of the central fixed contact 3B with a gap.
  • the outer fixed contact 3 ⁇ / b> A and the center fixed contact 3 ⁇ / b> B of the wiring board 3 are connected to an electronic circuit (not shown) mounted on the wiring board 3.
  • a predetermined voltage is applied to the outer fixed contact 3A. That is, a predetermined voltage is applied to the movable contact 2 that is electrically connected to the outer fixed contact 3A.
  • the user brings the operation body 10 having conductivity such as a finger close to or in contact with the upper surface of the display unit of the display sheet 5. As a result, a capacitance is generated between the operating body 10 and the movable contact 2.
  • This change in capacitance is detected by an electronic circuit (not shown) connected to the outer fixed contact 3A. As a result, the electronic circuit outputs a first signal.
  • the first-stage switch is turned on based on the first signal.
  • the input device 500 is pressed downward by the operating body 10. Thereby, a pressing force is applied to the central portion of the movable contact 2 via the display sheet 5 and the base sheet 1.
  • the upper convex dome-shaped central portion of the movable contact 2 is elastically inverted to the downward convex shape with a click feeling as shown in FIG. Thereby, the lower surface of the center part of the movable contact 2 comes into contact with the center fixed contact 3B.
  • the outer fixed contact 3A and the central fixed contact 3B are electrically connected via the movable contact 2. Due to this conduction, an electronic circuit (not shown) outputs a second signal. In the input device 500, the second-stage switch is turned on based on the second signal.
  • the dome-shaped central portion of the movable contact 2 elastically returns to the original upward convex shape with a click feeling.
  • the lower surface of the central portion of the movable contact 2 moves away from the central fixed contact 3B, and the second-stage switch returns to the off state.
  • the first-stage switch returns to the off state.
  • Patent Document 1 As prior art document information related to this application, for example, Patent Document 1 is known.
  • the input device includes a first push switch and a control unit.
  • the first push switch has a first member, a second member, and a first movable contact.
  • the first member and the second member are electrically conductive and are arranged electrically independent from each other.
  • the first movable contact is electrically connected to the first member.
  • the control unit is electrically connected to the first member and the second member.
  • the control unit outputs a signal A in accordance with a change in the first capacitance formed between the first movable contact and the second member due to the deformation of the first movable contact.
  • the input method in the present disclosure is an input method in an input device having a first member, a second member, and a first movable contact. This input method detects a change in the first capacitance formed between the first movable contact and the second member due to deformation of the first movable contact, and detects the detected first electrostatic capacitance. A signal A is output in accordance with the change in capacitance.
  • FIG. 1 is a block diagram of an input device according to the first embodiment.
  • FIG. 2 is a front sectional view of the switch portion in the input device shown in FIG.
  • FIG. 3 is an exploded perspective view of the switch section shown in FIG. 4 is a side sectional view of the switch portion shown in FIG.
  • FIG. 5 is a plan view of the switch case shown in FIG.
  • FIG. 6 is a front sectional view showing a state where the input device according to the first embodiment is mounted on an electronic device.
  • FIG. 7 is a front sectional view showing the switch operation of the first stage of the input device shown in FIG.
  • FIG. 8 is a diagram for explaining a change in capacitance of the input device shown in FIG. FIG.
  • FIG. 9 is a side cross-sectional view showing the second-stage switch operation of the input device shown in FIG.
  • FIG. 10 is a block diagram of the input device according to the second embodiment.
  • FIG. 11 is a perspective view showing a state where the input device shown in FIG. 10 is used in a portable terminal.
  • FIG. 12 is a display screen view of the portable terminal when the input device shown in FIG. 10 is operated.
  • FIG. 13 is a sectional view of a conventional input device.
  • FIG. 14 is a cross-sectional view showing the first-stage switch operation of the input device shown in FIG.
  • FIG. 15 is a cross-sectional view showing the switch operation of the second stage of the input device shown in FIG.
  • the first-stage switch detects a change in capacitance generated between the operating body 10 and the movable contact 2. Therefore, in order to change this electrostatic capacity, the operation body 10 having conductivity is necessary. Furthermore, in order to make the operating body 10 and the movable contact 2 sufficiently close to each other, it is necessary to reduce the thickness of the base sheet 1 and the display sheet 5.
  • FIG. 1 is a block diagram of an input device 1000 according to the first embodiment.
  • FIG. 2 is a front sectional view of the switch unit 100 in the input device 1000 shown in FIG. 3 is an exploded perspective view of the switch unit 100 shown in FIG. 4 is a side sectional view of the switch unit 100 shown in FIG.
  • FIG. 5 is a plan view of the case 11 of the switch unit 100 shown in FIG.
  • the input device 1000 includes a switch unit 100 and a control unit 40.
  • the switch unit 100 includes terminals 12B and 13B.
  • the switch unit 100 is electrically connected to the control unit 40 through terminals 12B and 13B.
  • the first member 12 has an outer fixed contact 12 ⁇ / b> A exposed in a substantially horseshoe shape on the outer peripheral side of the inner bottom surface of the recess of the case 11, and a pair of terminals 12 ⁇ / b> B derived from the side surface of the case 11.
  • the case 11 embeds an intermediate portion 12C that connects the outer fixed contact 12A and the terminal 12B.
  • the outer fixed contact 12A preferably has two protrusions 12D that are substantially rectangular in top view and slightly protrude upward as shown in FIGS.
  • the two protrusions 12D are arranged at positions where the centers of the center fixed contact 13A are point-symmetric.
  • the boundary portion between the resin surface on the bottom surface in the concave portion of the case 11 and the outer fixed contact 12A is flat without a step.
  • the movable contact 15 is made of an elastic metal thin plate, has a circular shape when viewed from above, and is formed in an upward convex dome shape. That is, the movable contact 15 protrudes on the opposite side to the inner bottom surface of the recess of the case 11 before inversion.
  • the movable contact 15 is accommodated in the recess of the case 11. Thereby, the position of the movable contact 15 is horizontally regulated by the side surface in the recess of the case 11.
  • the outer peripheral lower end of the movable contact 15 is placed on the protruding portion 12D of the outer fixed contact 12A. In the accommodated state, the outer peripheral end of the movable contact 15 faces the inner bottom surface of the recess of the case 11 with a gap. Furthermore, the lower surface of the central portion of the movable contact 15 is opposed to the upper surface of the central fixed contact 13A with a gap.
  • an insulating protective sheet 16 is bonded to the upper surface of the case 11 with an adhesive 16A on the lower surface.
  • the protective sheet 16 covers the recess of the case 11.
  • the pressing protrusion 17 is fixed at a position corresponding to the center position of the movable contact 15 on the upper surface of the protective sheet 16.
  • the pressing protrusion 17 is made of insulating resin and has a cylindrical shape.
  • the switch unit 100 is configured.
  • the switch unit 100 is mounted on the wiring board 21.
  • FIG. 3 shows only the switch unit 100, and the wiring board 21 is omitted.
  • the control unit 40 is an electronic circuit that can detect the electrostatic capacitance between the terminal 12B and the terminal 13B and the conduction state between the terminal 12B and the terminal 13B.
  • the input device 1000 configured as described above is used by being mounted on an electronic device typified by a portable terminal or the like, as shown in FIG.
  • FIG. 6 is a front sectional view showing a state where the input device 1000 is mounted on an electronic device. Above the switch unit 100, an operation body 24 of an electronic device is arranged.
  • the operation body 24 is made of an insulating resin.
  • the operating body 24 is arranged in the button hole of the panel case 25, and the upper part of the operating body 24 protrudes from the button hole.
  • the lower part of the operation body 24 is formed in a substantially cylindrical shape.
  • the bottom surface of the operating body 24 is in contact with the top surface of the pressing protrusion 17.
  • FIG. 7 is a front cross-sectional view illustrating the first-stage switch operation in a state where the input device 1000 is mounted on an electronic device.
  • FIG. 8 is a diagram for explaining a change in capacitance of the input device 1000.
  • FIG. 9 is a side cross-sectional view showing a second-stage switch operation in a state where the input device 1000 is mounted on an electronic device.
  • the case 11 has an intermediate portion 13 ⁇ / b> C that is set to the ground potential by the control unit 40 at a position slightly below the resin surface of the bottom surface inside the recess of the case 11.
  • the movable contact 15 is applied to a predetermined voltage by the control unit 40. Due to the pressing operation, the outer peripheral end portion of the movable contact 15 approaches the intermediate portion 13C, so that the capacitance generated between the movable contact 15 and the second member 13 (intermediate portion 13C) slightly increases.
  • the control unit 40 detects this change in capacitance via the terminals 12B and 13B.
  • the control unit 40 outputs a signal A and the first stage switch of the input device 1000 is turned on.
  • the control unit 40 detects a change in capacitance generated between the movable contact 15 and the second member 13 (intermediate portion 13C), and the first-stage switch is operated. . That is, the capacitance can be changed without using a conductive operation body such as a finger. Therefore, the first-stage switch is operated without depending on the material of the operating body 24 or the restriction on the distance between the operating body 24 or the finger 26 and the movable contact 15.
  • the movable contact When the pressing force applied to the operation body 24 is further reduced, the movable contact slightly deformed downward returns to the original upward convex shape. Therefore, the distance between the outer peripheral end portion of the movable contact 15 and the intermediate portion 13C returns to the original state. As a result, the capacitance generated between the movable contact 15 and the second member 13 (intermediate portion 13C) returns to the original state, and the control unit 40 detects a change in the capacitance. When the amount of change in capacitance with respect to the initial state becomes smaller than the predetermined first threshold value, the control unit 40 stops outputting the signal A. As a result, the first-stage switch of the input device 1000 returns to the off state.
  • the input device 1000 does not have to operate the first-stage switch and the second-stage switch in the ON state in order. Further, it is not necessary to turn off the second-stage switch and the first-stage switch in turn. For example, if the input device 1000 is operated with a pressing force such that the movable contact 15 is not elastically reversed, only the first-stage switch can be turned on / off.
  • the case 11 can regulate the position of the movable contact 15 in the horizontal direction on the inner surface of the recess.
  • the case 11 is not necessarily provided with a recess.
  • the movable contact 15 may be regulated in the horizontal direction by forming the case in a flat plate shape and using an adhesive on the lower surface of the protective sheet bonded to the case.
  • the input device 1000 includes the switch unit 100 and the control unit 40.
  • the switch unit 100 includes a movable contact 15 that is electrically connected to the first member 12, the second member 13, and the first member 12.
  • the control unit 40 is electrically connected to the first member 12 and the second member 13.
  • the controller 40 detects this change in capacitance.
  • the control unit 40 outputs the signal A when the detected change in capacitance is equal to or greater than a predetermined first threshold value.
  • the switch unit 100 When the switch unit 100 is further pressed, the movable contact 15 and the second member 13 come into contact with each other, and the first member 12 and the second member 13 are conducted.
  • the control unit 40 detects conduction between the first member 12 and the second member 13, the control unit 40 outputs a signal B.
  • the control unit 40 outputs both the signal A and the signal B, or any one of them. This realizes a two-stage switch operation.
  • FIG. 10 is a block diagram of the input device 2000 according to the second embodiment.
  • FIG. 11 is a perspective view showing a state where the input device 2000 is used in the mobile terminal 200.
  • FIG. 12 is a display screen diagram of the portable terminal 200 when the input device 2000 is operated.
  • the input device 2000 includes three switch units 100A to 100C and a control unit 50.
  • the switch units 100A to 100C have terminals 12B and 13B, respectively.
  • the switch units 100A to 100C are configured similarly to the switch unit 100 of the first embodiment, and are electrically connected to the control unit 50 through terminals 12B and 13B, respectively.
  • the three-key type input device 2000 including the three switch units 100A to 100C is configured.
  • the switch portion 100A when the switch portion 100A is slightly pressed, the movable contact 15 is slightly deformed as shown in FIG.
  • the capacity changes.
  • the controller 50 detects the change in capacitance, and outputs a signal A when the detected change in capacitance is equal to or greater than a predetermined first threshold value.
  • the switch unit 100A When the switch unit 100A is further pressed, the movable contact 15 and the second member 13 are brought into conduction as shown in FIG. 9, and the control unit 50 outputs a signal B.
  • the controller 50 detects the change in capacitance, and outputs a signal C when the detected change in capacitance is equal to or greater than a predetermined second threshold.
  • control unit 50 measures the time until the signal C is output after the signal A is output. When the time is equal to or less than the predetermined third threshold, the control unit 50 outputs the signal D.
  • the input device 2000 outputs the signal D by combining the first-stage switch operations of the two switch units 100A and 100B. For this reason, the input device 2000 allows the user to operate a variety of mounted electronic devices.
  • the control unit 50 In the input device 2000, when the switch unit 100A is further pressed, the movable contact 15 and the second member 13 are brought into conduction, and the control unit 50 outputs a signal B corresponding to the conduction.
  • the switch unit 100B when the switch unit 100C is further pressed, the movable contact 15 and the second member 13 are electrically connected. And the control part 50 can output the predetermined
  • the control unit 50 can detect a change in capacitance and conduction and output a predetermined signal.
  • the input device 2000 is mounted on the side surface of the mobile terminal 200, for example.
  • operating bodies 24A, 24C, and 24B corresponding to the switch units 100A, 100C, and 100B are sequentially arranged downward.
  • the mobile terminal 200 has a display screen 31. As shown in FIG. 12, the display screen 31 displays a file name stored in the memory of the portable terminal 200 and a cursor 32 indicating the selected file.
  • the control unit 50 outputs the signal A.
  • An electronic circuit of the portable terminal 200 (not shown) detects the signal A, and only one cursor 32 moves upward.
  • the control unit 50 outputs a signal B.
  • the electronic circuit of the portable terminal 200 detects the signal B and scrolls the display of the file name displayed on the display screen 31 upward.
  • the control unit 50 When the first-stage switch operation is performed by pressing the operating body 24B, the control unit 50 outputs a signal C.
  • the electronic circuit of the portable terminal 200 detects the signal C, and the cursor 32 moves downward.
  • the second-stage switch operation is performed, the file name display is scrolled downward.
  • the operation tool 24A or the operation tool 24B is pressed to align the cursor 32 with the file to be selected.
  • the operation body 24C located at the center is pressed, the second-stage switch operation of the switch unit 100C corresponding to the operation body 24C is performed, and the control unit 50 outputs a predetermined signal.
  • the output signal is detected by the electronic circuit of the portable terminal 200, and the selected file is executed. For example, if the executed file is music data, music is reproduced.
  • the user quickly traces the upper surfaces of the operation bodies 24A to 24C with a finger or the like in the order of the operation bodies 24A, 24C, and 24B.
  • the input device 2000 sequentially performs the first-stage switch operations corresponding to the operation bodies 24A, 24C, and 24B. That is, the control unit 50 outputs the signal C after outputting the signal A.
  • the control unit 50 measures the time until the signal C is output after the signal A is output (time difference T). When the measured time (time difference T) is equal to or smaller than a predetermined third threshold, the control unit 50 outputs a signal D. Then, the electronic circuit of the portable terminal 200 detects the signal D and quickly scrolls the file name displayed on the display screen 31 downward.
  • control unit 50 can add and output information corresponding to the value of the time difference T in the signal D. Then, the electronic circuit of the mobile terminal 200 can detect the signal D and obtain the value of the time difference T. Thereby, the electronic circuit of the portable terminal 200 scrolls the displayed file name at a speed corresponding to the time difference T. That is, by adding information corresponding to the value of the time difference T to the signal D by the control unit 50, the mobile terminal 200 can scroll the display at a speed corresponding to the moving speed of the user's finger.
  • the display screen 31 is also displayed at a speed corresponding to the moving speed of the user's finger.
  • the file name displayed in can be scrolled up quickly.
  • the input device 2000 can be operated by combining switch operations of two or more switch units. Therefore, the electronic device on which the input device 2000 is mounted can perform various operations such as a flick operation.
  • a plurality of switch portions may be arranged in a cross shape. You may arrange
  • the operation method of the electronic device using the input device is not limited to the operation such as scrolling.
  • the switch operation is performed by detecting a change in capacitance between the movable contact and the second member caused by the deformation of the movable contact. Therefore, even if the operation body is an insulator, an input operation is possible, which is useful for operation sections of various electronic devices.

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  • Push-Button Switches (AREA)

Abstract

L'invention concerne un appareil d'entrée qui est pourvu d'un interrupteur à bouton-poussoir et d'une unité de commande. L'interrupteur à bouton-poussoir comprend un premier élément (12), un second élément (13) et un premier point de contact mobile (15). Le premier élément et le second élément sont conducteurs, et sont disposés électriquement indépendants l'un de l'autre. Le premier point de contact mobile est électriquement connecté au premier élément. L'unité de commande (40, 50) est électriquement connectée au premier élément et au second élément. L'unité de commande détecte une variation d'une première capacité due à une déformation du premier point de contact mobile, et délivre un signal (A), ladite première capacité étant formée entre le premier point de contact mobile et le second élément.
PCT/JP2014/006339 2014-01-08 2014-12-19 Appareil d'entrée et procédé d'entrée d'appareil d'entrée WO2015104764A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2014001328 2014-01-08
JP2014-001328 2014-01-08

Publications (1)

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WO2015104764A1 true WO2015104764A1 (fr) 2015-07-16

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06283993A (ja) * 1990-12-13 1994-10-07 Sextant Avionique スイッチ装置
JP2002025377A (ja) * 2000-07-06 2002-01-25 Mitsumi Electric Co Ltd 感圧センサー
JP2007173068A (ja) * 2005-12-22 2007-07-05 Tokai Rika Co Ltd スイッチ装置
JP2008289058A (ja) * 2007-05-21 2008-11-27 Tokai Rika Co Ltd スイッチ装置
JP2011060627A (ja) * 2009-09-11 2011-03-24 Panasonic Corp 電子部品
JP2013257644A (ja) * 2012-06-11 2013-12-26 Dainippon Printing Co Ltd 入力装置及び認証機器

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06283993A (ja) * 1990-12-13 1994-10-07 Sextant Avionique スイッチ装置
JP2002025377A (ja) * 2000-07-06 2002-01-25 Mitsumi Electric Co Ltd 感圧センサー
JP2007173068A (ja) * 2005-12-22 2007-07-05 Tokai Rika Co Ltd スイッチ装置
JP2008289058A (ja) * 2007-05-21 2008-11-27 Tokai Rika Co Ltd スイッチ装置
JP2011060627A (ja) * 2009-09-11 2011-03-24 Panasonic Corp 電子部品
JP2013257644A (ja) * 2012-06-11 2013-12-26 Dainippon Printing Co Ltd 入力装置及び認証機器

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