WO2013011802A1 - 接触部材 - Google Patents

接触部材 Download PDF

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Publication number
WO2013011802A1
WO2013011802A1 PCT/JP2012/066091 JP2012066091W WO2013011802A1 WO 2013011802 A1 WO2013011802 A1 WO 2013011802A1 JP 2012066091 W JP2012066091 W JP 2012066091W WO 2013011802 A1 WO2013011802 A1 WO 2013011802A1
Authority
WO
WIPO (PCT)
Prior art keywords
contact
bottom plate
contact member
tongue piece
opening
Prior art date
Application number
PCT/JP2012/066091
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
敬亮 江刺
誠康 伊藤
Original Assignee
Smk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 Smk株式会社 filed Critical Smk株式会社
Publication of WO2013011802A1 publication Critical patent/WO2013011802A1/ja

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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
    • H01H13/02—Details
    • H01H13/10—Bases; Stationary contacts mounted thereon
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/58—Electric connections to or between contacts; Terminals
    • H01H1/5805—Connections to printed circuits
    • 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
    • H01H13/02—Details
    • H01H13/26—Snap-action arrangements depending upon deformation of elastic members
    • H01H13/48—Snap-action arrangements depending upon deformation of elastic members using buckling of disc springs
    • 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
    • H01H13/52—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 the contact returning to its original state immediately upon removal of operating force, e.g. bell-push switch
    • 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
    • H01H13/02—Details
    • H01H13/04—Cases; Covers
    • H01H13/06—Dustproof, splashproof, drip-proof, waterproof or flameproof casings

Definitions

  • the present invention relates to a contact member that constitutes a switch by being mounted on an electric circuit board, and includes a conductive case and an elastically deformable pressing member.
  • a switch 100 as shown in FIG. 8 is used as a switch used in an operation unit that requires a large operation stroke and a stable contact state.
  • the switch 100 includes a housing 001 made of a molding material integrally formed with a conductive terminal 002 whose contact surface is exposed at an opening, and a central tongue piece when the outer peripheral portion is placed on the terminal 002.
  • a contact piece 003 formed so as to be separated from the contact piece 003, a mortar-shaped elastic body 004 having a hollow inside and formed with a pedestal portion mounted on the contact piece 003 and receiving a pressing force on the upper portion, and a housing 001
  • the key stem 005 is slidably fitted in the vertical direction.
  • a pressing force is applied to the top surface of the key stem 005 to displace the action portion of the elastic body 004 with a large stroke in the downward direction.
  • a terminal having an outer contact on the outside of the central contact is what switch electrically shorted is turned ON.
  • the switch 100 can be distributed as a single switch that performs an ON-OFF operation, when the switch 100 is incorporated into an electrical device, an electric circuit board for mounting the switch 100 is provided. (Not shown) and a key top (not shown) for pressing the key stem 005 are indispensable. Further, the switch 100 is composed of five parts such as a housing 001 in which a terminal 002 is integrally formed, a contact piece 003, an elastic body 004, and a key stem 005, which causes a large part cost and assembly cost. Further, since the operation stroke is large, the sliding distance between the housing 001 and the key stem 005 is increased, and this sliding operation is easily hindered by dust or the like.
  • the present invention is configured with a small number of parts and can operate smoothly even with a large operation stroke. Also, there is no problem in physical distribution, and even when it is incorporated into an electrical device, As with the switch 100, the object is to provide a contact member that can constitute a switch that can be turned on and off by requiring only an electric circuit board and a key top for mounting.
  • a contact member according to claim 1 is a contact member comprising a conductive case in which a housing portion is formed by a bottom plate and a side wall, and an elastically deformable pressing member.
  • the bottom plate is formed with an opening and a tongue piece extending to the housing portion
  • the pressing member includes a pedestal portion placed on the bottom plate, and an operation portion to which an external pressing force is applied.
  • a deforming portion extending from the pedestal portion and continuing to the operating portion, and when the pressing force is applied to the operating portion, the deforming portion is deformed, and the operating portion presses the tongue piece,
  • the tongue piece can project to the outside of the housing portion through the opening.
  • the side wall forms a folded portion whose upper end is folded back inside the housing portion, and the folded portion serves as a housing portion for the pressing member.
  • the housing state is maintained.
  • a mounting soldering portion protruding outward is formed on the bottom plate.
  • the surface of the bottom plate opposite to the accommodating portion is subjected to insulation treatment.
  • the tongue piece in addition to the configuration according to the first aspect, includes a tongue piece arm portion extending from the bottom plate, and a contact piece further extending from the tongue piece arm portion and pressed by the operating portion.
  • the contact piece is formed with at least one contact projection protruding toward the opening.
  • the contact member is composed of only two parts, that is, the conductive case in which the housing portion is formed and the elastically deformable pressing member, the parts cost and the assembly cost are reduced.
  • the stroke of the pressing member can be easily increased, the operation stroke can be easily increased, and the operation stroke can be set freely.
  • the pedestal portion of the pressing member cannot go beyond the folded portion to the outside of the accommodating portion, thereby pressing in the distribution etc.
  • the soldering portion for mounting protruding outward on the bottom plate by forming the soldering portion for mounting protruding outward on the bottom plate, it is possible to prevent the flux generated during soldering and mounting from entering the accommodating portion in which the pressing member is accommodated. Also, when soldering to the mounting soldering portion, the solder fillet can be reliably formed, and a large mounting strength can be obtained. According to the invention of claim 4, since the insulation treatment is performed on the surface of the bottom plate opposite to the housing portion, that is, the surface of the bottom plate on the electric circuit board side, it is necessary to perform the insulation treatment on the electric circuit pattern of the electric circuit board. Therefore, it is possible to route an electric circuit pattern with a high degree of freedom.
  • the tongue piece is composed of the tongue arm portion and the contact piece, it is possible to easily set the elastic force of the tongue piece, and the contact piece protrudes toward the opening on the contact piece.
  • the contact convex portion and the contact pattern formed on the electric circuit board are more reliably brought into contact with the electric circuit. It is possible to improve the contact performance of the switch configured by mounting on the substrate.
  • FIG. 1 is a front perspective view of a contact member according to the present invention.
  • FIG. 2 is an exploded front perspective view of a contact member according to the present invention.
  • FIG. 3 is an exploded front perspective view of a contact member and an electric circuit board according to the present invention.
  • FIG. 5 is a cross-sectional view taken along the line aa of FIG. 4.
  • FIG. 6 is a view of the contact member according to the present invention operated by a pressing force.
  • FIG. 7 is an exploded front perspective view of an embodiment of another contact member according to the present invention.
  • FIG. 8 is an exploded perspective view of a conventional switch.
  • FIG. 1 is a front perspective view of a contact member according to the present invention.
  • FIG. 2 is an exploded front perspective view of the contact member according to the present invention. Is an exploded front perspective view of the contact member and the electric circuit board according to the present invention
  • FIG. 4 is a front perspective view of the contact member according to the present invention mounted on the electric circuit board
  • FIG. 5 is a line aa in FIG. 6 is a cross-sectional view taken along the line aa of FIG. 4 in a state where the contact member according to the present invention is operated by a pressing force
  • FIG. 1 is a front perspective view of a contact member according to the present invention.
  • FIG. 2 is an exploded front perspective view of the contact member according to the present invention. Is an exploded front perspective view of the contact member and the electric circuit board according to the present invention
  • FIG. 4 is a front perspective view of the contact member according to the present invention mounted on the electric circuit board
  • FIG. 5 is a line aa in FIG. 6 is
  • the contact member 01 includes a case 10 and a pressing member 30.
  • the case 01 is obtained by processing a conductive metal plate.
  • a circular bottom plate 11 is formed with an opening 12 that is substantially concentrically formed, and an opening-shaped tongue piece 13 is formed inward from the opening 12.
  • the tongue piece 13 is formed so as to incline upward, which is a direction in which a side wall 20 described later rises, and the tongue piece 13 is symmetrically formed with two tongues when viewed from above.
  • the tongue piece arm portion 15 is formed by drawing a substantially concentric arc with the opening portion 12 after extending from the opening portion 12, and the two tongue piece arm portions 15 are connected later. .
  • the contact piece 14 extends from the connected portion toward the center of the opening 12, and the contact piece 14 is formed substantially parallel to the bottom plate 11 and spaced apart by a certain distance in the upward direction. . Further, a side wall 20 that rises substantially vertically from the outer periphery of the bottom plate 11 is formed, and the side wall 20 and the above-described bottom plate 11 form an accommodating portion 18 having a substantially cylindrical space. Here, the upper end portion of the side wall 20 is folded back inward of the accommodating portion 18 to form a folded portion 19 having an angle with the side wall 20 of less than 90 degrees.
  • the side wall 20 is formed with a notch 22 that is notched upward from the bottom plate 11, which is the starting point of rising, and the notch 22 is formed on the same plane as the bottom plate 11 from the bottom plate 11 and is outside the accommodating portion 18.
  • a soldering portion 21 for mounting extending to is formed.
  • an annular positioning convex portion 16 is formed around the opening 12 of the bottom plate 11 and is convex upward so as to maintain the position of a pressing member 30 described later.
  • the pressing member 30 is made of an elastic material such as rubber, has a constant thickness, has a base 31 formed in an annular shape having an outer shape slightly smaller than the outer shape of the bottom plate 11 of the case 10, and a flat pressing on the upper surface.
  • the substantially cylindrical action part 32 having the surface 36 is connected by a deformed part 33 formed of a thin wall, and as a whole, a space in which the mortar-like space is turned upside down is formed inside. become.
  • a pressing portion 34 that faces the above-described inner space 37 protrudes from the surface opposite to the pressing surface 36.
  • the upper surface of the pedestal portion 31 is positioned at the same height as or slightly below the lower end of the folded portion 19, and the folded portion 19 prevents the pedestal portion 31 from exceeding the folded portion 19. That is, it becomes impossible for the pressing member 30 to come out of the accommodating portion 18, and it is possible to prevent an accident such as the pressing member 30 falling out of the accommodating portion 18 during assembly and transportation during distribution.
  • the completed contact member 01 is incorporated in an electric device, it is mounted on an electric circuit board 40 provided in the electric device as shown in FIGS. 3 to 6, thereby functioning as a switch including the electric circuit board. Will be.
  • a mounting portion 43 that is a solderable electric circuit pattern is formed at a position corresponding to the mounting soldering portion 21 of the contact member 01, and the mounting portion 43 and the mounting portion 43 are positioned at a position corresponding to the contact piece 14.
  • the mounting of the contact member 01 on the electric circuit board is completed, whereby the contact piece 14 is positioned substantially directly above the center contact 41.
  • the contact member 01 thus completed and mounted is operated as follows. As shown in FIGS. 5 and 6, first, a pressing force is applied to the top surface of the action portion 32 of the pressing member 30 through a key top provided in the electric device. As a result, the action portion 32 is displaced downward while the deformation portion 33 is elastically deformed, the pressing portion 34 abuts against the contact piece 14, and further pressing force is applied, so that the contact piece 14 moves downward in the tongue piece 13.
  • the central contact 41 and the mounting portion 43 of the electric circuit board 40 are electrically short-circuited through the case 10 made of a conductive metal plate, and the switch constituted by the contact member 01 and the electric circuit board 41. Is turned on.
  • the contact member 01 according to the present invention is configured only by the case 01 and the pressing member 30, and functions as a part of the configuration of the switch only by being mounted on the electric circuit board. Further, a large operation stroke can be obtained by using the pressing member 30.
  • the case 10 used for the contact member 01 is configured such that the accommodating portion 18 forms a substantially cylindrical space.
  • the present invention is not limited to this. It is also possible to use a case in which the portion has a substantially cubic shape or a substantially rectangular shape, and the housing portion has a substantially polygonal cylindrical shape as shown in FIG. 7B, and the pressing member also has a shape corresponding to the various cases described above. If it is a thing, it can be set as the contact member which concerns on this invention.

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Push-Button Switches (AREA)
PCT/JP2012/066091 2011-07-21 2012-06-18 接触部材 WO2013011802A1 (ja)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2011-173390 2011-07-21
JP2011173390A JP2013026204A (ja) 2011-07-21 2011-07-21 接触部材

Publications (1)

Publication Number Publication Date
WO2013011802A1 true WO2013011802A1 (ja) 2013-01-24

Family

ID=47557983

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2012/066091 WO2013011802A1 (ja) 2011-07-21 2012-06-18 接触部材

Country Status (3)

Country Link
JP (1) JP2013026204A (zh)
TW (1) TW201330037A (zh)
WO (1) WO2013011802A1 (zh)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7132001B2 (ja) 2018-07-13 2022-09-06 富士通コンポーネント株式会社 押しボタンスイッチ

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10177824A (ja) * 1996-12-19 1998-06-30 Matsushita Electric Ind Co Ltd プッシュオンスイッチ
JP2003109453A (ja) * 2001-09-27 2003-04-11 Alps Electric Co Ltd 押釦スイッチ
JP2010244896A (ja) * 2009-04-07 2010-10-28 Alps Electric Co Ltd 押釦スイッチ
JP2011003306A (ja) * 2009-06-16 2011-01-06 Mik Denshi Kohgyo Co Ltd 押しボタンスイッチ

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10177824A (ja) * 1996-12-19 1998-06-30 Matsushita Electric Ind Co Ltd プッシュオンスイッチ
JP2003109453A (ja) * 2001-09-27 2003-04-11 Alps Electric Co Ltd 押釦スイッチ
JP2010244896A (ja) * 2009-04-07 2010-10-28 Alps Electric Co Ltd 押釦スイッチ
JP2011003306A (ja) * 2009-06-16 2011-01-06 Mik Denshi Kohgyo Co Ltd 押しボタンスイッチ

Also Published As

Publication number Publication date
TW201330037A (zh) 2013-07-16
JP2013026204A (ja) 2013-02-04

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