CN104538227A - Keyboard switch with up-and-down contact of contacts - Google Patents

Keyboard switch with up-and-down contact of contacts Download PDF

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Publication number
CN104538227A
CN104538227A CN201410661731.0A CN201410661731A CN104538227A CN 104538227 A CN104538227 A CN 104538227A CN 201410661731 A CN201410661731 A CN 201410661731A CN 104538227 A CN104538227 A CN 104538227A
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CN
China
Prior art keywords
fixed
contact
base
terminal
movable terminal
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Granted
Application number
CN201410661731.0A
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Chinese (zh)
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CN104538227B (en
Inventor
余正明
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Huizhou Zhengpai Kedian Co.,Ltd.
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余正明
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Priority to CN201410661731.0A priority Critical patent/CN104538227B/en
Publication of CN104538227A publication Critical patent/CN104538227A/en
Application granted granted Critical
Publication of CN104538227B publication Critical patent/CN104538227B/en
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Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H13/00Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
    • H01H13/70Switches 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
    • H01H13/702Switches 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 with contacts carried by or formed from layers in a multilayer structure, e.g. membrane switches
    • H01H13/705Switches 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 with contacts carried by or formed from layers in a multilayer structure, e.g. membrane switches characterised by construction, mounting or arrangement of operating parts, e.g. push-buttons or keys
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2227/00Dimensions; Characteristics
    • H01H2227/036Minimise height

Abstract

The invention discloses a keyboard switch with up-and-down contact of contacts. The keyboard switch comprises an upper cover, a base, a fixed terminal, a movable terminal and a pressing piece, wherein the base is provided with a guide post; the pressing piece is mounted on the guide post which is connected with a return spring in a sleeving manner; the upper end is exposed out of the upper cover for pressing; the upper cover is buckled with the base to form a cavity for accommodating the terminals in the middle; the fixed terminal and the movable terminal are arranged in the cavity; one end of each of the fixed terminal and the movable terminal penetrates out of the base to be connected with an external circuit; up-and-down movement of the pressing piece can push the movable terminal to move to control contact and disconnection of the movable terminal and the fixed terminal; and the movable terminal is matched with the pressing piece in a side surface overlapping manner. According to the keyboard switch, the movable terminal transversely arranged on the base is contacted with the fixed terminal arranged on the base in a matching manner up and down to realize on-off action, so that the thickness of the keyboard switch with the up-and-down contact of the contacts can be reduced; and the keyboard switch is more suitable for being applied to equipment requiring light and thin keyboard design.

Description

The keyboard switch that a kind of contact contacts up and down
Technical field
The present invention relates to a kind of electronic switch, particularly the keyboard switch that contacts up and down of a kind of contact.
Background technology
A lot of action needs of existing equipment use key switch as input medium, and key switch quality determines the experience of input equipment, need to ensure good feel and useful life.
The movable contact spring adopting sheet metal to make in existing key switch mostly be vertical folding bending become there is flexible structure, the sidewall of elasticity bending place is located in contact, lateral contact between fixed contact and moving contact.Keyboard or other mechanical switch input equipments are more and more paid attention to lightening now, if form shell fragment by movable contact spring bending setting up and down, then because need to pursue good feel, again for fear of the strength problem of sheet metal, reserved certain height is needed to realize bending, be not easy product to do more lightening, and this movable contact spring structure is comparatively complicated, production cost is also higher.
Summary of the invention
In view of this, the present invention needs the problem solved to be: provide a kind of good hand touch, the life-span is good, and the keyboard switch that the contact that structure is simple, manufacturing cost is lower contacts up and down.
In order to solve the problem, the present invention is by the following technical solutions: the keyboard switch that a kind of contact contacts up and down, comprise upper cover, base, fixed terminal, movable terminal and pressing piece, described base is provided with a guide pillar, pressing piece is installed to and is socketed with on the guide pillar of back-moving spring, upper cover is exposed for pressing in upper end, and upper cover and base fasten and make middle part form a cavity, and fixed terminal and movable terminal are arranged in cavity.Described fixed terminal one end passes base and is connected with external circuit, and the other end is parallel to base as fixed contact end and arranges; Described movable terminal comprises stiff end and moving contact end, and moving contact end is positioned at fixed contact and rectifies top; Described pressing piece extends projection to movable terminal direction, and on moving contact end, correspondence arranges linkage portion; Pressing piece moves up and down and makes the moving contact end projecting through linkage portion drive movable terminal action and then control movable terminal contact up and down with fixed terminal fixed contact end and disconnect.
Preferably, on described movable terminal moving contact end, linkage portion is overlapped in the projection of pressing piece, controls the moving contact end of movable terminal and the contact of fixed terminal fixed contact end and disconnection by the lift effect of projection.Certain linkage portion can be fixed together with this projection, drives movable terminal to move up and down by moving up and down of pressing piece.
A kind of concrete scheme is: described movable terminal is a dynamic tactile shell fragment, the elastic bending part comprising the stiff end of one connection, moving contact end and be connected between stiff end and moving contact end, linkage portion is be arranged on the protuberance on moving contact end, elastic bending part is recessed bending structure, and reset direction is towards fixed contact end.
The preferred version of above-mentioned concrete scheme is: the stiff end of described movable terminal is provided with through hole, is covered with reference column on described, and the through hole that described reference column is riveted on stiff end realizes the fixing of movable terminal and upper cover.
Preferred, described moving contact end is provided with moving contact, and the fixed contact end of described fixed terminal is provided with fixed contact, and described moving contact and fixed contact are column structure, and Relative vertical is arranged.
Another kind of concrete scheme is: described movable terminal is torsion spring, and base is provided with a torsion spring fixed leg being convenient to the rotation of torsion spring movement arm arranged perpendicular to base, and described torsion spring set is connected on torsion spring fixed leg; One end passes base for connection, this end and base are fixed, the torsion spring other end is as movement arm, its linkage portion being bent to form an inverted U is overlapped in projection, and continue to be bent to form with fixed contact end moving contact end opposing upper and lower, moved up and down by pressing piece and control the protruding movement arm whether lifting torsion spring, make it disconnect with fixed terminal and contact.
The third concrete scheme and the second similar: described movable terminal is torsion spring, and described base is provided with a mounting groove, and described torsion spring is laterally fixed in mounting groove; One end passes base for connection, this end and base are fixed, the torsion spring other end is as movement arm, it is bent to form a linkage portion and is overlapped in projection, and continue to be bent to form with fixed contact end moving contact end opposing upper and lower, moved up and down by pressing piece and control the protruding movement arm whether lifting torsion spring, make it disconnect with fixed terminal and contact.
Compared with prior art, beneficial effect of the present invention is:
(1) in described switch by horizontal movable terminal on base and fixed terminal, make the two realize on-off action by contact up and down, greatly can reduce the thickness of the keyboard switch that contact contacts up and down, being more suitable for being applied in needs on the equipment of thin design;
(2) between movable terminal with pressing piece for side overlapping mode coordinates, and the structure that movable terminal coordinates with pressing piece overlap with pressing piece corresponding construction on, the be pressed tip side of part lift effect and fixed terminal of movable terminal disconnects, the elastic reset direction of movable terminal contacts with the tip side of fixed terminal, this design can ensure the good contact of fixed terminal and movable terminal when switch press, simultaneously, the stroke making pressing piece downward does not limit by the conflict after two-terminal contact, provides conveniently for increase pressing stroke and feel;
(3) described construction of switch is relatively simple, and cost is lower, improves enterprise's productivity effect.
Accompanying drawing explanation
Fig. 1 is the overall structure exploded perspective view of keyboard switch first embodiment of the present invention;
Fig. 2 is movable terminal and the fixing terminal structure schematic diagram of keyboard switch first embodiment of the present invention;
Fig. 3 is the scheme of installation of keyboard switch first embodiment movable terminal of the present invention and upper cover;
Fig. 4 is the assembled state cut-away view of keyboard switch first embodiment of the present invention;
Fig. 5 is the overall structure exploded perspective view of keyboard switch second embodiment of the present invention;
Fig. 6 is keyboard switch second embodiment torsion spring structure chart of the present invention;
Fig. 7 is the assembled state schematic diagram of keyboard switch second embodiment of the present invention;
Fig. 8 is the overall structure exploded perspective view of keyboard switch of the present invention 3rd embodiment;
Fig. 9 is keyboard switch of the present invention 3rd embodiment torsion spring structure chart;
Figure 10 is the assembled state schematic diagram of tactile keyboard switch the 3rd embodiment of the present invention;
Figure 11 is structural representation after touching dish switch of the present invention assembling.
Embodiment
Below in conjunction with drawings and Examples, the present invention is described in further detail.
As Figure 1-4, the keyboard switch that contact described in the present embodiment contacts up and down comprises upper cover 1, base 2, pressing piece 5, back-moving spring 6, movable terminal 4 and fixed terminal 3, this upper cover 1 periphery arranges multiple button hole 11, and base 2 place corresponding with upper cover 1 button hole 11 is provided with screens 22, upper cover 1 can be fastened with coordinating of screens 22 by button hole 11 with base 2, forms the cavity that places pressing piece 5, back-moving spring 6, movable terminal 4 and fixed terminal 3 after fastening in the middle of upper cover 1 and base 2.This base 2 is provided with guide pillar 21, and guide pillar 21 bottom is extended bottom base 2, is provided with guide hole in the middle of guide pillar 21.And this pressing piece 5 bottom is provided with backstay, pressing piece 5 is by penetrating guide hole by backstay, coordinate the back-moving spring 6 between pressing piece 5 and base 2 can realize depressing and upspring, also guide groove is provided with between pressing piece 5 four edges and base 2, when pressing piece 5 is pressed or act on reset by back-moving spring 6, pressing piece 5 moves up and down along guide groove, pressing piece 5 top passes upper cover 1 to connect outside keycap, pressing piece 5 is also provided with a projection 51, and this projection 51 is arranged on the left end of pressing piece 5.
This movable terminal 4 is a dynamic tactile shell fragment, on horizontal base 2 before guide pillar 21, comprise the stiff end 41 for fixing that one connects, and fixed terminal 3 tip side 43 opposing upper and lower and the elastic bending part 42 be connected between stiff end 41 and tip side 43, stiff end 41 one end passes stiff end 40 base 2 and is connected with external circuit, the other end connects elastic bending part 42, pushing part 431 is provided with by pressing piece 5 one end at tip side 43, this pushing part 431 is square, be close to the top of pressing piece 5 projection 51, when pressing piece 5 moves up and down, protruding 51 can control tip side 43 moves up and down, and then realize the contact of tip side 43 and fixed terminal 3.This stiff end 41 is fixed on the left side of base 2 before guide pillar 21, and right side is tip side 43, and fixed terminal 3 is arranged on tip side 43 lower end.This fixed terminal 3 is square structure, and one end stiff end 30 passes base 2 and is connected with external circuit.The place that movable terminal 4 contacts with fixed terminal 3 is respectively arranged with moving contact 432 and fixed contact 31, this moving contact 432 and fixed contact 31 are column structure, and mutually vertical, moving contact 432 and the contact effect of fixed contact 31 can be ensured like this, avoid loose contact.This elastic bending part 42 is recessed bending structure, and the bending being conducive to contact point is contacted by the fixed terminal about 3 that tip side 43 and opposite side are fixed on base 2 and realizes conducting.
Stiff end 41 is also provided with through hole 411, upper cover 1 is provided with reference column 12, the through hole 411 that reference column 12 is riveted on stiff end 41 realizes movable terminal 4 to be fixed on upper cover reference column 12, one end of elastic bending part 42 is fixed, tip side shake when can prevent switch motion, reduces the power of pressing piece lift terminal simultaneously.As shown in Figure 4, during use, when pressing piece 5 is pressed, the backstay of pressing piece 5 down moves along guide pillar 21 guide hole of base 2, back-moving spring 6 is extruded, the pushing part 431 of movable terminal 4 can be close to protruding 51 under the elasticity of elastic bending part 42, and follow protruding 51 and move down, when movable terminal 4 moves down to a certain extent, tip side 43 moving contact 432 on movable terminal 4 contacts with the fixed contact 31 in its underpart, be connected to movable terminal 4 and the circuit turn-on of fixed terminal 3, produce a pressing signal; When removing the power of pressing after pressing piece 5 presses, because the returning elastic of back-moving spring 6, a power is up applied to pressing piece 5, at this moment pressing piece 5 projection 51 also can up boost, because pushing part 431 is arranged on protruding 51 tops, the tip side 43 of movable terminal 4 up can be pushed open, now movable terminal 4 can disconnect with fixed terminal 3 and contacting, and returns to the position before pressing.
embodiment 2
As shown in Fig. 5,6,7, in embodiment 2, described switch comprises upper cover 1, base 2, pressing piece 5, back-moving spring 6, movable terminal 4 and fixed terminal 3, these upper cover about 1 two ends are respectively provided with a button hole 11, be provided with two button holes 11 in bottom simultaneously, and base 2 place corresponding with upper cover 1 button hole 11 is provided with screens 22, upper cover 1 can be fastened with coordinating of screens 22 by button hole 11 with base 2, forms the cavity that places pressing piece 5, back-moving spring 6, movable terminal 4 and fixed terminal 3 after fastening in the middle of upper cover 1 and base 2.This base 2 is provided with a guide pillar 21, guide pillar 21 one end is fixed on base 2, the other end and pressing piece 5 bottom are connected and fixed, back-moving spring 6 is socketed on the guide pillar 21 between base 2 and pressing piece 5, pressing piece 5 top passes upper cover 1 to connect outside keycap, also be provided with at least one projection 51, when pressing piece 5 moves up and down, protruding 51 movement arms that can promote torsion spring make it to swing up and down and realize contacting with fixed terminal 3 or disconnecting.
This fixed terminal 3 and movable terminal 4 are fixed on base 2, wherein, fixed terminal 3 is square metal sheet, is arranged on the opposite side base before fixed terminal being placed torsion spring position, comprises the pin end 31 be welded and fixed with external circuit and the tip side 33 contacted with movable terminal 4.This tip side 33 top of described tip side 33 is provided with the column contact of upwards placing, and be convenient to contact up and down with movement arm, pin end 31 is also extended in its one end, and this pin end 31 passes base 2 and is connected with external circuit.Be positioned at side, tip side 33 front end at base 2 and be provided with a mounting groove, this mounting groove size just can, by placed within for torsion spring main body, coordinate upper cover 1 torsion spring to be fixed on the side of the tip side 33 front end base 2 of movable terminal 4.
The movement arm of this torsion spring to be extended to fixed terminal 3 direction by torsion spring and forms the 8th action support arm 431, the 9th action support arm 432 being parallel to base 2 bottom surface is bent out on protruding 51 tops, 9th action support arm 432 is positioned at protruding 51 tops, when pressing piece 5 moves up and down, projection can promote the 9th action support arm and move up and down, finally bending extends to upper end, contact and is formed and fixed contact the tenth action support arm 433 opposing upper and lower, torsion spring also comprises pin end 430, passes base 2 outside and be connected with external circuit from one end.
On the edge that pressing piece 5 bottom is relative with the 9th action support arm position, be provided with protruding 51, when pressing piece 5 not by people for pressing time, 9th action support arm bottom and protruding 51 upper contact of pressing piece 5, because the elastic reaction of back-moving spring 6, the 9th action support arm is backed down by protruding 51 tops, the movement arm of movable terminal 4 and the contact separation of fixed terminal 3, connect and disconnect, do not produce signal; When pressing piece 5 by people for pressing time, the elasticity by movement arm is close to protruding 51 tops of pressing piece 5 and is pressed with pressing piece 5 and move down, the contact of movement arm end and fixed terminal 3, connects and connects, and produces push button signalling.
embodiment 3
As shown in Figure 8,9, 10, switch described in embodiment 3 comprises upper cover 1, base 2, pressing piece 5, back-moving spring 6, movable terminal 4 and fixed terminal 3, these upper cover about 1 two ends are respectively provided with a button hole 11, be provided with two button holes 11 in bottom simultaneously, and base 2 place corresponding with upper cover 1 button hole 11 is provided with screens 22, upper cover 1 can be fastened with coordinating of screens 22 by button hole 11 with base 2, forms the cavity that places pressing piece 5, back-moving spring 6, movable terminal 4 and fixed terminal 3 after fastening in the middle of upper cover 1 and base 2.This base 2 is provided with a guide pillar 21, guide pillar 21 one end is fixed on base 2, the other end and pressing piece 5 bottom are connected and fixed, back-moving spring 6 is socketed on the guide pillar 21 between base 2 and pressing piece 5, pressing piece 5 top passes upper cover 1 to connect outside keycap, also be provided with at least one projection 51, when pressing piece 5 moves up and down, protruding 51 movement arms that can promote torsion spring make it to swing up and down and realize contacting with fixed terminal 3 or disconnecting.Fixed terminal 3 comprises the pin end 31 be welded and fixed with external circuit, the tip side 33 fixed terminal 3 being fixed on the installation portion 32 on guide pillar 21 and contacting with movable terminal 4.Have the through hole that guide pillar 21 can be allowed to pass in the middle of installation portion 32, fixed terminal 3, by allowing guide pillar 21 through after through hole, is fixed on base 2 bottom surface by the reset squeezing action of back-moving spring 6.In installation portion 32 one end, extend horizontally away and to be arranged on base 2 bottom surface the tip side 33 opposing upper and lower with movement arm, this tip side 33 top is provided with the column contact of upwards placing, and is convenient to contact up and down with movement arm.These are all identical with 2 with embodiment 1, and movable terminal also adopts torsion spring, identical with embodiment 2, and just the mounting means of torsion spring is slightly different with structure.
In the present embodiment, be positioned on the right side of tip side 33 front end at base 2 and be provided with a mounting groove, this mounting groove is surrounded by three location walls and base 2 edge and forms, and size just can, by placed within for torsion spring main body, coordinate upper cover 1 torsion spring to be fixed on tip side 33 front end of fixed terminal 3.
The movement arm of this torsion spring to be extended to fixed terminal 3 direction by the right-hand member of torsion spring and forms the 5th action support arm 421, bend out on protruding 51 tops horizontal and be parallel to the 6th action support arm 422 of base 2 bottom surface, 6th action support arm is positioned at protruding 51 tops, when pressing piece 5 moves up and down, projection can promote the 6th action support arm and move up and down, finally bending extends to upper end, contact and is formed and fixed contact the 7th action support arm 423 opposing upper and lower, torsion spring also comprises pin end 420, passes base 2 outside and be connected with external circuit from one end.
On the edge that pressing piece 5 bottom is relative with the 6th action support arm 422 position, be provided with protruding 51, when pressing piece 5 not by people for pressing time, 6th action support arm 422 bottom and protruding 51 upper contact of pressing piece 5, because the elastic reaction of back-moving spring 6, the 6th action support arm is backed down by protruding 51 tops, the movement arm of movable terminal 4 and the contact separation of fixed terminal 3, connect and disconnect, do not produce signal; When pressing piece 5 by people for pressing time, the elasticity by movement arm is close to protruding 51 tops of pressing piece 5 and is pressed with pressing piece 5 and move down, the contact of movement arm end and fixed terminal 3, connects and connects, and produces push button signalling.
Compared with prior art, the present invention is by horizontal movable terminal 4 on base 2, and coupling is arranged on the fixed terminal 3 of base 2 side, it is made to pass through to contact up and down to realize on-off action, greatly can reduce the thickness of the keyboard switch that contact contacts up and down, be more suitable for being applied in need frivolous keyboard Designing equipment on, and its structure is relatively simple, cost is lower, improves enterprise's productivity effect.
As shown in figure 11, in each embodiment, upper cover 1 and base 2 fasten rear formation entirety, and pressing piece 5 stretches out from upper cover 1.Each example structure figure is identical.
Construction of switch of the present invention can be extended to the switch of every field, such as various sensitive switches etc.
In embodiment 2 and embodiment 3, all the be pressed lift effect of part projection and the tip side of fixed terminal of the movement arm of torsion spring disconnects, the reset direction of the movement arm of torsion spring contacts with the tip side of fixed terminal, the movable terminal of the shell fragment form in embodiment 1 is to be overlapped with pressing piece by a protuberance to coordinate too, this design can ensure the good contact of fixed terminal and movable terminal when switch press, simultaneously, the stroke making pressing piece downward does not limit by the conflict after two-terminal contact, provides conveniently for increase pressing stroke and feel.
Above-described embodiment is only preferably implementation of the present invention, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these apparent replacement forms all belong to protection scope of the present invention.

Claims (7)

1. the keyboard switch that contacts up and down of a contact, comprise upper cover (1), base (2), fixed terminal (3), movable terminal (4) and pressing piece (5), described base (2) is provided with a guide pillar (21), pressing piece (5) be installed to be socketed with back-moving spring (6) guide pillar (21) on, upper cover (1) is exposed for pressing in upper end, upper cover (1) and base (2) fasten and make middle part form a cavity, fixed terminal (3) and movable terminal (4) are arranged in cavity, it is characterized in that: described fixed terminal (3) one end passes base (2) and is connected with external circuit, the other end is parallel to base as fixed contact end and arranges, described movable terminal (4) comprises stiff end and moving contact end (43), and moving contact end (43) is positioned at fixed contact and rectifies top, described pressing piece (5) extends projection (51) to movable terminal (4) direction, and the upper correspondence of moving contact end (43) arranges linkage portion, pressing piece (5) moves up and down and makes projection (51) drive the moving contact end (43) of movable terminal (4) action and then control movable terminal (4) contact up and down with fixed terminal (3) fixed contact end and disconnect by linkage portion.
2. the keyboard switch that contacts up and down of contact according to claim 1, it is characterized in that: the upper linkage portion of described movable terminal (4) moving contact end (43) is overlapped in the projection (51) of pressing piece (5), controls the moving contact end (43) of movable terminal (4) and the contact of fixed terminal (3) fixed contact end and disconnection by the lift effect of protruding (51).
3. the keyboard switch that contacts up and down of contact according to claim 2, it is characterized in that: described movable terminal (4) is a dynamic tactile shell fragment, the elastic bending part (42) comprising the stiff end (41) of one connection, moving contact end (43) and be connected between stiff end (41) and moving contact end (43), linkage portion is for being arranged on the protuberance (431) on moving contact end (43), elastic bending part (42) is recessed bending structure, and reset direction is towards fixed contact end.
4. the keyboard switch that contacts up and down of contact according to claim 3, it is characterized in that: the stiff end (41) of described movable terminal is provided with through hole (411), described upper cover (1) is provided with reference column, and the through hole (411) that described reference column is riveted on stiff end (41) realizes the fixing of movable terminal and upper cover.
5. the keyboard switch that contacts up and down of contact according to claim 3, it is characterized in that: described moving contact end (43) is provided with moving contact (431), the fixed contact end of described fixed terminal (3) is provided with fixed contact (31), described moving contact (432) and fixed contact (31) are column structure, and Relative vertical is arranged.
6. the keyboard switch that contacts up and down of contact according to claim 2, it is characterized in that: described movable terminal (4) is torsion spring (4), base (2) is provided with a torsion spring fixed leg (23) being convenient to the rotation of torsion spring movement arm arranged perpendicular to base (2), and described torsion spring (4) is socketed on torsion spring fixed leg (23); Torsion spring (4) one end passes base for connection, this end and base are fixed, torsion spring (4) other end is as movement arm, its linkage portion being bent to form an inverted U is overlapped in projection (51), and continue to be bent to form with fixed contact end moving contact end opposing upper and lower, moved up and down by pressing piece (5) and control the movement arm whether protruding (51) lift torsion spring (4), make it disconnect with fixed terminal (3) and contact.
7. the keyboard switch that contacts up and down of contact according to claim 6, is characterized in that: described movable terminal (4) is provided with a mounting groove (24) for torsion spring (4), described base (2), and described torsion spring (4) is laterally fixed in mounting groove (24); Torsion spring (4) one end passes base for connection, this end and base are fixed, torsion spring (4) other end is as movement arm, it is bent to form a linkage portion and is overlapped in projection (51), and continue to be bent to form with fixed contact end moving contact end opposing upper and lower, moved up and down by pressing piece (5) and control the movement arm whether protruding (51) lift torsion spring (4), make it disconnect with fixed terminal (3) and contact.
CN201410661731.0A 2014-11-19 2014-11-19 The keyboard switch that a kind of contact contacts up and down Active CN104538227B (en)

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CN201410661731.0A CN104538227B (en) 2014-11-19 2014-11-19 The keyboard switch that a kind of contact contacts up and down

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Application Number Priority Date Filing Date Title
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CN104538227B CN104538227B (en) 2017-12-12

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106158477A (en) * 2016-08-03 2016-11-23 东莞市名键电子科技有限公司 A kind of microswitch
CN110233075A (en) * 2019-06-10 2019-09-13 惠州冠泰电子有限公司 Self-locking double loop key switch

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2835754A (en) * 1957-03-20 1958-05-20 Gen Electric Multiple pushbutton switch with torsion spring contacts
CN1173031A (en) * 1996-06-03 1998-02-11 欧姆龙株式会社 Switching device
US20060081451A1 (en) * 2004-10-20 2006-04-20 Masahiro Masuda Push switch
US20070051592A1 (en) * 2005-09-05 2007-03-08 Alps Electric Co., Ltd. Switch device and steering switch apparatus equipped with the switch device
CN201060767Y (en) * 2007-05-24 2008-05-14 温州宇球开关有限公司 Microswitch
CN202454472U (en) * 2012-02-28 2012-09-26 东莞市凯华电子有限公司 Switch for miniature keyboard
CN204204707U (en) * 2014-11-19 2015-03-11 余正明 The keyboard switch that a kind of contact contacts up and down

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2835754A (en) * 1957-03-20 1958-05-20 Gen Electric Multiple pushbutton switch with torsion spring contacts
CN1173031A (en) * 1996-06-03 1998-02-11 欧姆龙株式会社 Switching device
US20060081451A1 (en) * 2004-10-20 2006-04-20 Masahiro Masuda Push switch
US20070051592A1 (en) * 2005-09-05 2007-03-08 Alps Electric Co., Ltd. Switch device and steering switch apparatus equipped with the switch device
CN201060767Y (en) * 2007-05-24 2008-05-14 温州宇球开关有限公司 Microswitch
CN202454472U (en) * 2012-02-28 2012-09-26 东莞市凯华电子有限公司 Switch for miniature keyboard
CN204204707U (en) * 2014-11-19 2015-03-11 余正明 The keyboard switch that a kind of contact contacts up and down

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106158477A (en) * 2016-08-03 2016-11-23 东莞市名键电子科技有限公司 A kind of microswitch
CN110233075A (en) * 2019-06-10 2019-09-13 惠州冠泰电子有限公司 Self-locking double loop key switch

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