WO2021250775A1 - ボタンスイッチ装置及び電子機器 - Google Patents

ボタンスイッチ装置及び電子機器 Download PDF

Info

Publication number
WO2021250775A1
WO2021250775A1 PCT/JP2020/022674 JP2020022674W WO2021250775A1 WO 2021250775 A1 WO2021250775 A1 WO 2021250775A1 JP 2020022674 W JP2020022674 W JP 2020022674W WO 2021250775 A1 WO2021250775 A1 WO 2021250775A1
Authority
WO
WIPO (PCT)
Prior art keywords
rubber
button
air
switch device
button switch
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/JP2020/022674
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
祐助 細井
洋己 赤塚
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to PCT/JP2020/022674 priority Critical patent/WO2021250775A1/ja
Priority to JP2022530396A priority patent/JP7361918B2/ja
Publication of WO2021250775A1 publication Critical patent/WO2021250775A1/ja
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Images

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
    • H01H13/70—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard
    • H01H13/84—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard characterised by ergonomic functions, e.g. for miniature keyboards; characterised by operational sensory functions, e.g. sound feedback
    • H01H13/85—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard characterised by ergonomic functions, e.g. for miniature keyboards; characterised by operational sensory functions, e.g. sound feedback characterised by tactile feedback features

Definitions

  • This disclosure relates to button switch devices and electronic devices.
  • the button switch structure includes a rubber switch having a rubber dome pressed by a button, a substrate having a contact at a position corresponding to the rubber dome, and an annular groove formed on a surface of the rubber switch in contact with the substrate.
  • the annular groove is provided so as to surround the area where the ingress of liquid is desired to be prevented. Therefore, the liquid that has entered between the rubber switch and the substrate due to the capillary phenomenon is blocked by the annular groove, and the intrusion into the inside of the annular groove is prevented.
  • the button switch structure is disclosed in, for example, Patent Document 1.
  • the rubber dome when the button is pushed, the rubber dome elastically deforms accordingly. Further, the rubber dome bulges in a hollow shape, and air is accumulated inside the rubber dome. Therefore, when the rubber dome is elastically deformed by pressing with a button, if air remains accumulated inside the rubber dome, the internal pressure of the rubber dome rises. As described above, when the internal pressure of the rubber dome rises, there is a problem that the button feeling deteriorates.
  • the present disclosure has been made to solve the above-mentioned problems, and an object of the present disclosure is to provide a button switch device capable of obtaining a good button feeling while preventing the ingress of liquid.
  • the button switch device includes a rubber switch having a rubber dome, a substrate that contacts the rubber switch, and an annular groove that is formed on the surface of the rubber switch that contacts the substrate and is provided so as to surround a liquid intrusion prevention range. , An air groove formed to communicate with the inside of the rubber dome on the surface of the rubber switch that contacts the substrate, and an air groove that opens from the air groove to the outside of the air groove to form an annular groove. It is provided with an air hole arranged inside.
  • FIG. 1 It is an exploded perspective view which shows the structure of the electronic device provided with the button switch device which concerns on Embodiment 1.
  • FIG. 2 is a cross-sectional view taken along the line III-III in FIG. It is sectional drawing which shows the other structure of the button switch apparatus which concerns on Embodiment 1.
  • FIG. It is a rear view which shows the structure of the button switch apparatus which concerns on Embodiment 2.
  • FIG. 5 is a cross-sectional view taken along the line VI-VI of FIG. It is a rear view which shows the structure of the button switch device which concerns on Embodiment 3.
  • FIG. FIG. 7 is a cross-sectional view taken along the line VIII-VIII of FIG.
  • Embodiment 1 The button switch device 10 according to the first embodiment will be described with reference to FIGS. 1 to 3.
  • FIG. 1 is an exploded perspective view showing the configuration of an electronic device 50 provided with the button switch device 10 according to the first embodiment.
  • FIG. 2 is a rear view showing the configuration of the button switch device 10 according to the first embodiment.
  • FIG. 3 is a cross-sectional view taken along the line III-III of FIG. In FIG. 2, the substrate 11 is removed, and the substrate 11 is shown by a two-dot chain line.
  • the electronic device 50 shown in FIG. 1 is, for example, a display device.
  • the electronic device 50 includes a housing 51, a display panel 52, and a button switch device 10.
  • the housing 51 is formed in a rectangular frame shape.
  • An opening 51a is formed in the upper part of the housing 51.
  • the display panel 52 is attached to the opening 51a of the housing 51.
  • the button switch device 10 is attached to the lower part of the housing 51.
  • the button switch device 10 receives, for example, a button operation from a user and controls an image or a video displayed on the display panel 52.
  • the button switch device 10 includes a substrate 11, a rubber switch 12, and a plurality of buttons 13.
  • the board 11 is arranged at the rear of the button switch device 10.
  • the button 13 is arranged at the front of the button switch device 10.
  • the rubber switch 12 is arranged between the substrate 11 and the button 13.
  • the board 11 is for controlling an image or a video displayed on the display panel 52.
  • the substrate 11 is made of, for example, a glass epoxy resin. Further, the substrate 11 has a plurality of contacts 11a on the surface facing the rubber switch 12.
  • the rubber switch 12 is made of an elastic resin material such as elastic rubber or silicon resin.
  • the rubber switch 12 is formed in a flat plate shape as a whole, and has a front surface 12A and a rear surface 12B.
  • the front surface 12A faces the button 13, and the rear surface 12B is in contact with the substrate 11.
  • the rubber switch 12 has a rubber dome 12a, a conductive portion 12b, an annular groove 12c, an air groove 12d, and an air hole 12e.
  • the rubber dome 12a bulges from the front surface 12A toward the button 13 side in a hollow shape.
  • the rubber dome 12a is crushed by the pushed button 13. Further, the rubber dome 12a returns to its original shape when the button 13 moves toward the front side of the button switch device 10 and the pressing force by the button 13 is released.
  • the conductive portion 12b is provided on the inner ceiling surface of the rubber dome 12a.
  • the conductive portion 12b is made of a conductive material such as gold or carbon. Further, the conductive portion 12b comes into contact with the two contacts 11a on the substrate 11 when the rubber dome 12a is elastically deformed by being pressed by the button 13. Therefore, the two contacts 11a are electrically connected to each other via the conductive portion 12b, and the switch is turned on.
  • the annular groove 12c is a groove for preventing the ingress of liquids such as moisture, dew condensation, and beverages.
  • the annular groove 12c protects the via (not shown) of the substrate 11 from the liquid, for example.
  • the vias are those in which the holes of the substrate 11 are plated with copper and wired, and the substrate 11 is provided with a plurality of vias. When the liquid infiltrates the via, the copper moves due to migration, so that the wiring is broken and the substrate 11 may malfunction.
  • the annular groove 12c is provided so as to surround the liquid intrusion prevention range, that is, the range in which the via is provided, on the rear surface 12B of the rubber switch 12 in contact with the substrate 11.
  • FIG. 2 shows an example in which all the rubber domes 12a are surrounded by one annular groove 12c.
  • the air groove 12d discharges the air accumulated inside the rubber dome 12a toward the outside of the rubber dome 12a due to the elastic deformation of the rubber dome 12a.
  • the air groove 12d is provided on the rear surface 12B of the rubber switch 12. Further, the air groove 12d is arranged inside the annular groove 12c.
  • the air groove 12d communicates with the inside of the rubber dome 12a and extends outward from the rubber dome 12a. At this time, the air groove 12d does not reach the annular groove 12c. That is, the air groove 12d stays inside the annular groove 12c from the inside of the rubber dome 12a.
  • the air hole 12e discharges the air flowing in the air groove 12d toward the outside of the button switch device 10.
  • the air hole 12e communicates with the air groove 12d and opens to the front surface 12A of the rubber switch 12. Further, the air holes 12e are arranged inside the annular groove 12c. That is, one end of the air groove 12d communicates with the rubber dome 12a, and the other end of the air groove 12d communicates with the air hole 12e.
  • the button 13 is provided so as to cover the rubber switch 12 from the front side thereof. Further, the button 13 can be pushed toward the rubber switch 12 side with respect to the button switch device 10. At this time, the button 13 is always urged toward the front side of the button switch device 10 by the reaction force of the rubber dome 12a.
  • each button 13 has two pressing portions 13a.
  • the two pressing portions 13a correspond to each of the two rubber domes 12a.
  • the pressing portion 13a projects from the rear surface of the button 13 toward the rubber switch 12 side and faces the corresponding rubber dome 12a.
  • the pressing portion 13a retracts together with the button 13 and presses the top of the rubber dome 12a.
  • the rubber dome 12a is elastically deformed by being pressed by the pressing portion 13a. Further, as the rubber dome 12a is elastically deformed, the conductive portion 12b comes into contact with the corresponding two contacts 11a.
  • the button switch device 10 can release air from the inside of the rubber dome 12a when the rubber dome 12a is pressed and crushed.
  • the button switch device 10 can suppress an increase in the internal pressure of the rubber dome 12a when the button 13 is pushed. Therefore, in the button switch device 10, the button 13 can be easily pushed in, and a good button feeling can be obtained.
  • the annular groove 12c has a rectangular shape, but the shape of the annular groove 12c is not limited to this. Further, although the annular groove 12c is provided so as to surround all the rubber domes 12a, it may be provided so as to surround each one or a plurality of rubber domes 12a.
  • the air groove 12d is formed in a straight line, but the shape of the air groove 12d in the longitudinal direction is not limited to this.
  • FIG. 4 is a cross-sectional view showing another configuration of the button switch device 10 according to the first embodiment.
  • the button switch device 10 may include an air hole 11b instead of the air hole 12e.
  • the air hole 11b penetrates the substrate 11 in the thickness direction and communicates between the inside of the air groove 12d and the outside of the button switch device 10. Therefore, the air hole 11b can discharge the air flowing in the air groove 12d toward the outside of the button switch device 10.
  • the button switch device 10 may include both the air holes 11b and 12e.
  • the button switch device 10 is formed on the rubber switch 12 having the rubber dome 12a, the substrate 11 in contact with the rubber switch 12, and the rear surface 12B in contact with the substrate 11 in the rubber switch 12, and is liquid. Air arranged so as to communicate with the inside of the rubber dome 12a at the annular groove 12c provided so as to surround the intrusion prevention range and the rear surface 12B in contact with the substrate 11 in the rubber switch 12, and arranged inside the annular groove 12c.
  • the groove 12d is provided with air holes 11b and 12e that are opened from the air groove 12d to the outside of the air groove 12d and are arranged inside the annular groove 12c. Therefore, the button switch device 10 can obtain a good button feeling while preventing the infiltration of liquid.
  • the air hole 12e is formed in the rubber switch 12. Therefore, in the button switch device 10, the air groove 12d is connected to the air hole 12e provided inside the annular groove 12c, and does not need to be connected to the outer peripheral portion of the rubber switch 12, and crosses the annular groove 12c. Not. As a result, the annular groove 12c can retain its shape and can prevent the liquid that has entered from the outside by the capillary phenomenon from entering the inside thereof.
  • the air hole 11b is formed inside the annular groove 12c in the substrate 11. Therefore, in the button switch device 10, the air groove 12d is connected to the air hole 11b provided inside the annular groove 12c, and does not need to be connected to the outer peripheral portion of the rubber switch 12, and crosses the annular groove 12c. Not. As a result, the annular groove 12c can retain its shape and can prevent the liquid that has entered from the outside by the capillary phenomenon from entering the inside thereof.
  • the electronic device 50 includes a button switch device 10. Therefore, the electronic device 50 can obtain a good button feeling in the button switch device 10 while preventing the infiltration of liquid.
  • Embodiment 2 The button switch device 20 according to the second embodiment will be described with reference to FIGS. 5 to 6.
  • FIG. 5 is a rear view showing the configuration of the button switch device 20 according to the second embodiment.
  • FIG. 6 is a cross-sectional view taken along the line VI-VI of FIG.
  • the button switch device 20 according to the second embodiment shown in FIG. 5 has a configuration in which the air groove 12d is replaced with the air groove 22d with respect to the configuration of the button switch device 10 according to the first embodiment.
  • the rubber switch 12 of the button switch device 20 has a plurality of air grooves 22d.
  • the air groove 22d communicates between two rubber domes 12a corresponding to one button 13.
  • One end of the air groove 22d communicates with the inside of one rubber dome 12a, and the other end of the air groove 22d communicates with the inside of the other rubber dome 12a.
  • the air hole 12e is provided between the two rubber domes 12a in the air groove 22d.
  • the button switch device 20 can release air from the inside of the rubber dome 12a when the rubber dome 12a is pressed and crushed.
  • the air groove 22d communicates between the two rubber dome 12a, and the air hole 12e is provided between the two rubber dome 12a in the air groove 22d. Therefore, the button switch device 20 can make the air holes 12e common in the two rubber domes 12a corresponding to one button 13.
  • Embodiment 3 The button switch device 30 according to the third embodiment will be described with reference to FIGS. 7 and 8.
  • FIG. 7 is a rear view showing the configuration of the button switch device 30 according to the third embodiment.
  • FIG. 8 is a cross-sectional view taken along the line VIII-VIII of FIG.
  • the button switch devices 10 and 20 according to the first and second embodiments are configured to include a plurality of rubber domes 12a for one button 13, whereas the button switch devices 10 and 20 are shown in FIGS. 7 and 8.
  • the button switch device 30 according to No. 3 is configured to include one rubber dome 12a for one button 13. That is, in the button switch devices 10 and 20, a plurality of rubber domes 12a corresponding to one button 13 are simultaneously pressed, whereas in the button switch device 30, the plurality of rubber domes 12a are independently pressed. Will be done.
  • the plurality of air grooves 22d connect the two adjacent rubber domes 12a, respectively.
  • the air hole 12e is provided in the middle portion of any one of the plurality of air grooves 22d.
  • the button 13 is provided so as to cover the rubber switch 12 from the front side thereof.
  • One rubber dome 12a corresponds to each button 13. Therefore, each button 13 has one pressing portion 13a.
  • the internal space of the rubber dome 12a becomes smaller. Therefore, the air existing in the internal space is pushed out into the air groove 22d, flows as it is in the air groove 12d, and is discharged to the outside of the device from the air hole 12e, or is elastically deformed. While passing through the inside of the rubber dome 12a other than 12a, it flows in the air groove 12d and is discharged to the outside of the device from the air hole 12e. In this way, the button switch device 30 can release air from the inside of the rubber dome 12a when the rubber dome 12a is pressed and crushed.
  • the button switch device 30 includes one button 13 corresponding to one rubber dome 12a and pressing the one rubber dome 12a, and is any one of a plurality of air grooves 22d.
  • An air hole 12e is provided in one air groove 22d. Therefore, even if the button switch device 30 includes one button 13 for one rubber dome 12a, the air holes 12e can be made common.
  • the present disclosure may be free combination of each embodiment, modification of any component in each embodiment, or omission of any component in each embodiment. It is possible.
  • the button switch device is used for a button switch device or the like capable of obtaining a good button feeling while preventing liquid from entering by providing an air groove and an air hole inside the annular groove. Is suitable.
  • buttons 10 20, 30 button switch device, 11 board, 11a contact, 11b air hole, 12 rubber switch, 12A front, 12B rear surface, 12a rubber dome, 12b conductive part, 12c annular groove, 12d air groove, 12e air hole, 13 Button, 13a pressing part, 22d air groove, 50 electronic device, 51 housing, 51a opening, 52 display panel.

Landscapes

  • Push-Button Switches (AREA)
PCT/JP2020/022674 2020-06-09 2020-06-09 ボタンスイッチ装置及び電子機器 Ceased WO2021250775A1 (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PCT/JP2020/022674 WO2021250775A1 (ja) 2020-06-09 2020-06-09 ボタンスイッチ装置及び電子機器
JP2022530396A JP7361918B2 (ja) 2020-06-09 2020-06-09 ボタンスイッチ装置及び電子機器

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2020/022674 WO2021250775A1 (ja) 2020-06-09 2020-06-09 ボタンスイッチ装置及び電子機器

Publications (1)

Publication Number Publication Date
WO2021250775A1 true WO2021250775A1 (ja) 2021-12-16

Family

ID=78845400

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2020/022674 Ceased WO2021250775A1 (ja) 2020-06-09 2020-06-09 ボタンスイッチ装置及び電子機器

Country Status (2)

Country Link
JP (1) JP7361918B2 (https=)
WO (1) WO2021250775A1 (https=)

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001283681A (ja) * 2000-03-30 2001-10-12 Mitsumi Electric Co Ltd キースイッチ装置
US20020009322A1 (en) * 2000-06-23 2002-01-24 Sheng-Fang Shih Keyboard thin film circuit board with trenches to release air from hollow rubber domes
JP2010040490A (ja) * 2008-08-08 2010-02-18 Tokai Rika Co Ltd スイッチ装置
JP2014081808A (ja) * 2012-10-17 2014-05-08 Tokai Rika Co Ltd 操作装置
JP2015185271A (ja) * 2014-03-20 2015-10-22 ヤマハ株式会社 操作子連動装置
JP2019008881A (ja) * 2017-06-20 2019-01-17 株式会社フジクラ スイッチ
JP2019114461A (ja) * 2017-12-25 2019-07-11 アルプスアルパイン株式会社 スイッチ装置
JP2019192402A (ja) * 2018-04-20 2019-10-31 株式会社東海理化電機製作所 スイッチ装置、及びラバーコンタクト

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0269435U (https=) * 1988-11-16 1990-05-25
JPH07161257A (ja) * 1993-12-13 1995-06-23 Fujitsu Ltd キー入力装置の製造方法
JP3923746B2 (ja) * 2001-03-19 2007-06-06 アルプス電気株式会社 キーボード用スイッチ装置
JP2012151024A (ja) * 2011-01-20 2012-08-09 Panasonic Corp 可動接点付きシート

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001283681A (ja) * 2000-03-30 2001-10-12 Mitsumi Electric Co Ltd キースイッチ装置
US20020009322A1 (en) * 2000-06-23 2002-01-24 Sheng-Fang Shih Keyboard thin film circuit board with trenches to release air from hollow rubber domes
JP2010040490A (ja) * 2008-08-08 2010-02-18 Tokai Rika Co Ltd スイッチ装置
JP2014081808A (ja) * 2012-10-17 2014-05-08 Tokai Rika Co Ltd 操作装置
JP2015185271A (ja) * 2014-03-20 2015-10-22 ヤマハ株式会社 操作子連動装置
JP2019008881A (ja) * 2017-06-20 2019-01-17 株式会社フジクラ スイッチ
JP2019114461A (ja) * 2017-12-25 2019-07-11 アルプスアルパイン株式会社 スイッチ装置
JP2019192402A (ja) * 2018-04-20 2019-10-31 株式会社東海理化電機製作所 スイッチ装置、及びラバーコンタクト

Also Published As

Publication number Publication date
JPWO2021250775A1 (https=) 2021-12-16
JP7361918B2 (ja) 2023-10-16

Similar Documents

Publication Publication Date Title
US9111700B2 (en) Thin push button structure
US4922070A (en) Switch assembly
CN100483588C (zh) 开关一体型壳体和具有该壳体的电子设备
GB2327208A (en) Waterproof keyboard assembly
TWI496030B (zh) 薄型按鍵結構
US6956180B1 (en) Watertight key unit for an electronic device
US6917000B2 (en) Signal input device
JP7361918B2 (ja) ボタンスイッチ装置及び電子機器
US9813059B2 (en) Capacitive sensitive key structure
US5981890A (en) Touch-to-action structure of a key signal
US5294762A (en) Click-action membrane switch unit
JP4900068B2 (ja) 押圧操作装置
US12578802B2 (en) Electrical key support membrane
US6087600A (en) Keypad for input of control commands
TWI728917B (zh) 電子裝置及其鍵盤模組
KR102251234B1 (ko) 스트로크 거리가 증가된 포스 센서 스위치
JP4658765B2 (ja) 防水キーボード
JP3108352U (ja) 防水キーユニット及びそれを備えた電子装置
CA2719332C (en) Keypad structure
TWI595523B (zh) 發光鍵盤及鍵盤模組
JP5241130B2 (ja) スイッチ機構およびスイッチ機構を有する電子機器
KR200448592Y1 (ko) 소형 키보드
KR200263754Y1 (ko) 피씨비형 택트 스위치
JPH04324212A (ja) キーボードユニット
CN101197219A (zh) 开关装置及使用该开关装置的遥控发射器

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 20939735

Country of ref document: EP

Kind code of ref document: A1

ENP Entry into the national phase

Ref document number: 2022530396

Country of ref document: JP

Kind code of ref document: A

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 20939735

Country of ref document: EP

Kind code of ref document: A1