CN105529203A - Key membrane switch layer, key and keyboard - Google Patents

Key membrane switch layer, key and keyboard Download PDF

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Publication number
CN105529203A
CN105529203A CN201610051431.XA CN201610051431A CN105529203A CN 105529203 A CN105529203 A CN 105529203A CN 201610051431 A CN201610051431 A CN 201610051431A CN 105529203 A CN105529203 A CN 105529203A
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CN
China
Prior art keywords
connecting line
contact
circuit layer
layer
outer part
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Granted
Application number
CN201610051431.XA
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Chinese (zh)
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CN105529203B (en
Inventor
王运涛
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.)
HUAIAN DARFON ELECTRONICS CORP
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HUAIAN DARFON ELECTRONICS CORP
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Priority to CN201610051431.XA priority Critical patent/CN105529203B/en
Publication of CN105529203A publication Critical patent/CN105529203A/en
Application granted granted Critical
Publication of CN105529203B publication Critical patent/CN105529203B/en
Active legal-status Critical Current
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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
    • H01H13/704Switches 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 the layers, e.g. by their material or structure
    • 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
    • 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
    • H01H13/7065Switches 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 characterised by the mechanism between keys and layered keyboards
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2209/00Layers
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2231/00Applications
    • H01H2231/002Calculator, computer

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  • Push-Button Switches (AREA)

Abstract

The invention provides a key membrane switch layer, a key and a keyboard. The key membrane switch layer comprises a first membrane circuit layer, a second membrane circuit layer and an isolation layer, wherein the first membrane circuit layer is provided with first contacts, a first connecting line, a second connecting line and a first external connecting line, and the first contact is respectively electrically connected to the first external connecting line through the first connecting line and the second connecting line; the second membrane circuit layer is provided with second contacts, a third connecting line, a fourth connecting line and a second external connecting line, and the second contact is respectively electrically connected to the second external connecting line through the third connecting line and the fourth connecting line; the isolation layer is provided with through holes and is arranged between the first membrane circuit layer and the second membrane circuit layer, wherein the through holes are respectively corresponding to the first connecting line, the second connecting line, the third connecting line and the fourth connecting line. According to the key membrane switch layer, the key and the keyboard, a problem of abnormal circuit conduction caused by oxidative break of a circuit wire can be overcome.

Description

Button thin film switch layer, button and keyboard
Technical field
The present invention relates to art of keypads, particularly relate to the thin film switch layer of keyboard.
Background technology
Along with socioeconomic development, computer has obtained applying more and more widely.And along with people are to the use of computer more and more diversification, the use of computor-keyboard the most frequently used during operating computer is also more and more universal.
The keyboard of existing design has two kinds: a kind of is the keyboard of volcanic crater formula framework, and be used for mating the large keyboard that desktop computer uses, its feel is better, but thicker, and volume is large; Another kind is the keyboard of scissor leg structure, is used for greatly on the small and exquisite product of notebook computer, personal digital assistant equal-volume, and its relatively light and very thin thickness, feel is more poor than volcanic crater formula.In on the market, above-mentioned two kinds of structures all adopt the form of thin film switch to realize conducting and cut-off.See Fig. 1 and Fig. 2, the surperficial 431a of the membrane circuit layer 43a of button thin film switch layer is provided with conductive contact 432a, conductive contact 432a is directly electrically connected with circuit lead 433a, fit in the surface that the side of separator 42a and membrane circuit layer 43a are provided with conductive contact 432a, the through hole 421a of separator 42a is in order to realize contact or the separation of the conductive contact of both sides membrane circuit layer, fit (not shown) in the surface that the opposite side of separator 42a and another membrane circuit layer are provided with another conductive contact, conductive contact 432a realizes contacting or being separated by another conductive contact of through hole 421a and this, to reach conducting or the cut-off of this button.In actual mechanical process, see Fig. 2, the EDGE CONTACT of circuit lead 433a and through hole 421a is in primary importance L, the partial denudation of conductive contact 432a side is connected in through hole 421a to make circuit lead 433a, and the easy coalescent moisture in through hole 421a place, the partial circuit wire 433a oxidation being exposed to through hole 421a can be caused even to occur the problem broken.
Therefore, be necessary to design a kind of novel button thin film switch layer, button and keyboard, to overcome above-mentioned defect.
Summary of the invention
The object of the present invention is to provide a kind of button thin film switch layer, button and keyboard, it can overcome circuit lead oxidation broken string and cause the problem of circuit turn-on exception.
For achieving the above object, the invention provides a kind of button thin film switch layer, this button thin film switch layer comprises: the first film circuit layer, have the first contact, the first connecting line, the second connecting line and the first external connection line, this first contact is electrically connected to this first external connection line respectively by this first connecting line, this second connecting line; Second membrane circuit layer, has the second contact, the 3rd connecting line, the 4th connecting line and the second external connection line, and this second contact is electrically connected to this second external connection line respectively by the 3rd connecting line, the 4th connecting line; And separator, have through hole, this separator is arranged between this first film circuit layer and this second membrane circuit layer; Wherein, this through hole is corresponding with this first connecting line, this second connecting line, the 3rd connecting line and the 4th connecting line respectively; When pressing keys, this first contact can contact this second contact with this first external connection line of conducting and this second external connection line via this through hole.
Preferably, this first film circuit layer also has the first outer part, and this first outer part connects this first connecting line, this second connecting line respectively to this first external connection line, and this first outer part corresponds to this through hole periphery.
Preferably, the shape of this first outer part is one of them or combination of round ring-type or arcuation, disciform ring-type or arcuation, polygonal ring-type or arcuation.
Preferably, this second membrane circuit layer also has the second outer part, and this second outer part connects the 3rd connecting line, the 4th connecting line respectively to this second external connection line, and this second outer part corresponds to this through hole periphery.
Preferably, the shape of this second outer part is one of them or combination of round ring-type or arcuation, disciform ring-type or arcuation, polygonal ring-type or arcuation.
Preferably, this through hole has the first edge, and this first edge contacts with this first connecting line, this second connecting line, the 3rd connecting line and the 4th connecting line respectively.
Preferably, this through hole has the first edge, and this first edge can map on this first connecting line and this second connecting line along first direction, and this first edge can along the back mapping of this first direction on the 3rd connecting line and the 4th connecting line.
Preferably, this first connecting line, the second connecting line, the 3rd connecting line and the 4th connecting line are made by silver slurry.
For achieving the above object, the present invention separately provides a kind of button, and this button comprises the button thin film switch layer described in above-mentioned any one.
For achieving the above object, the present invention also provides a kind of keyboard, and this keyboard comprises multiple above-mentioned button.
Compared with prior art, button thin film switch layer provided by the invention, button and keyboard, it arranges multiple connecting line and connects conductive junction point and external connection line in membrane circuit layer, when wherein there is oxidation or broken string in arbitrary connecting line, do not affect impedance or the conducting of conductive junction point and external connection line, effective reduction causes the risk of circuit abnormality because singular association line oxidation generation impedance loop is large or singular association line breaks.
Accompanying drawing explanation
Fig. 1 is the structural representation of prior art membrane circuit layer;
Fig. 2 is that prior art separator and membrane circuit layer face structural representation when fitting on axis direction;
Fig. 3 is the button cross-sectional view of the embodiment of the present invention;
Fig. 4 is the detonation configuration schematic diagram of the button thin film switch layer of the embodiment of the present invention;
Fig. 5 is the partial structurtes schematic diagram of the first film circuit layer of the embodiment of the present invention;
Fig. 6 be embodiment of the present invention separator and the first film circuit layer when fitting in first direction reverse on face partial structurtes schematic diagram;
Fig. 7 is the partial structurtes schematic diagram of the second membrane circuit layer of the embodiment of the present invention;
Fig. 8 is that embodiment of the present invention separator and the second membrane circuit layer face partial structurtes schematic diagram when fitting on first direction.
Embodiment
For making there is further understanding to object of the present invention, structure, feature and function thereof, embodiment is hereby coordinated to be described in detail as follows.
Some vocabulary is employed to censure specific element in the middle of specification and claims.Person with usual knowledge in their respective areas should understand, and same element may be called by manufacturer with different nouns.This specification and claims book is not used as the mode of distinguish one element from another with the difference of title, but is used as the criterion of differentiation with element difference functionally." comprising " mentioned in the middle of specification and claim is in the whole text open term, therefore should be construed to " including but not limited to ".
With reference to shown in Fig. 3 to Fig. 8, disclose the structural representation of the first embodiment of button of the present invention.Fig. 3 is the button cross-sectional view of the embodiment of the present invention; Fig. 4 is the detonation configuration schematic diagram of the button thin film switch layer of the embodiment of the present invention; Fig. 5 is the structural representation of the first film circuit layer of the embodiment of the present invention; Fig. 6 be embodiment of the present invention separator and the first film circuit layer when fitting in first direction reverse on face structural representation; Fig. 7 is the structural representation of the second membrane circuit layer of the embodiment of the present invention; Fig. 8 is that embodiment of the present invention separator and the second membrane circuit layer face structural representation when fitting on first direction.
See Fig. 3, disclose the button 100 of the embodiment of the present invention, button 100 comprises keycap 1, guide pin bushing 2, flexible member 3, button thin film switch layer 4, pedestal 5, that is, on central axis Z, be disposed with pedestal 5, button thin film switch layer 4, flexible member 3 and keycap 1, wherein, guide pin bushing 2 is arranged between pedestal 5 and keycap 1, and button thin film switch layer 4 is arranged on pedestal 5, and flexible member 3 is arranged between button thin film switch layer 4 and keycap 1; When keycap 1 moves along first direction D1 towards pedestal 5, flexible member 3 produces an elastic restoring force, and this elastic restoring force can make keycap 1 along the counter motion of this first direction D1; Keycap 1 has support arm 11, key post 12 and snap fit, and this snap fit is formed at the free end of support arm 11, and guide pin bushing 2 has keyhole 21 and holding section 22; In time assembling, can first flexible member 3 be fixed on pedestal 5, again guide pin bushing 2 is arranged on pedestal 5, finally the key post 12 of keycap 1 is just inserted keyhole 21 to guide pin bushing 2, because this snap fit has inclined-plane, when keycap 1 supports into guide pin bushing 2 along this first direction D1, this snap fit end of support arm 11 can to the Direction distortion close to key post 12, thus make this snap fit enter keyhole 21 completely and to engage with holding section 22; When user presses keycap 1 along this first direction D1, key post 12 can compress the button thin film switch layer 4 on elastic supporting member for supporting optical member 3 conducting pedestal 5, and now, the conducting that can realize button 100 controls; When user stops pressing keycap 1, this elastic restoring force that flexible member 3 is out of shape and produces makes flexible member 3 compress key post 12, thus make keycap 1 return to moving of the front state of pressing along the reverse of this first direction D1, when this snap fit abuts with the holding section 22 of guide pin bushing 2, keycap 1 stops continuing the counter motion along this first direction D1 in keyhole 21, and ensures that keycap 1 does not eject from keyhole 21.
See Fig. 4, button thin film switch layer 4 has the first film circuit layer 41, separator 42 and the second membrane circuit layer 43, separator 42 is arranged between the first film circuit layer 41 and the second membrane circuit layer 43, when free state, the first film circuit layer 41 is separated by separator 42 and the second membrane circuit layer 43, with the cut-off state between holding circuit.
Refer to Fig. 5 again, the first film circuit layer 41 has first surface 411, first contact 412, first connecting line 413, first external connection line 414, first outer part 415 and the second connecting line 416, first contact 412, first connecting line 413, first external connection line 414, first outer part 415 and the second connecting line 416 are arranged at first surface 411, first surface 411 is the face that the first film circuit layer 41 is fitted with a side surface of separator 42, first contact 412 is respectively by the first connecting line 413, second connecting line 416 is electrically connected to the first external connection line 414, first outer part 415 connects the first connecting line 413 respectively, second connecting line 416 to the first external connection line 414, further, first contact 412, first connecting line 413, first outer part 415 and the first external connection line 414 form a circuit and are connected to outside, and the first contact 412, second connecting line 416, first outer part 415 and the first external connection line 414 form another circuit and be connected to outside.Whereby, when wherein there is oxidation or broken string in arbitrary connecting line to the first connecting line 413, second connecting line 416, all do not affect impedance or the conducting of the first contact 412 and the first external connection line 414, also can efficient solution to determine impedance lifting or circuit breaker problem.In the present embodiment, the first contact 412 is starch by silver the silver point made, and the first connecting line 413, first external connection line 414, first outer part 415 and the second connecting line 416 are all for being starched the silver-colored line made by silver.Further, one or more of connecting line can also be increased in order to be electrically connected the first contact 412 and the first outer part 415, to strengthen reliability.
See Fig. 7, second membrane circuit layer 43 has second surface 431, second contact 432, 3rd connecting line 433, second external connection line 434, second outer part 435 and the 4th connecting line 436, second contact 432, 3rd connecting line 433, second external connection line 434, second outer part 435 and the 4th connecting line 436 are arranged at second surface 431, second surface 431 is the face that the second membrane circuit layer 431 is fitted with the another side surface of separator 42, second contact 432 is respectively by the 3rd connecting line 433, 4th connecting line 436 is electrically connected to the second external connection line 434, second outer part 435 connects the 3rd connecting line 433 respectively, 4th connecting line 436 to the second external connection line 434, further, second contact 432, the 3rd connecting line 433, second outer part 435 and the second external connection line 434 form one article of circuit and are connected to outside, and the second contact 432, the 4th connecting line 436, second outer part 435 and the second external connection line 434 form another article of circuit and be connected to outside.Whereby, when oxidation or broken string occur arbitrary connecting line in the 3rd connecting line 433, the 4th connecting line 436, all do not affect impedance or the conducting of the second contact 432 and the second external connection line 434, also can efficient solution to determine impedance lifting or circuit breaker problem.In the present embodiment, the second contact 432 is starch by silver the silver point made, and the 3rd connecting line 433, second external connection line 434, second outer part 435 and the 4th connecting line 436 are all for being starched the silver-colored line made by silver.Further, one or more of connecting line can also be increased in order to be electrically connected the second contact 432 and the second outer part 435, to strengthen reliability.
Separator 42 has through hole 421,3rd surface 422 and the 4th surface 423, through hole 421 makes the 3rd of separator 42 the surface 422 be communicated with the 4th surface 423, separator 42 is arranged between the first film circuit layer 41 and the second membrane circuit layer 43, that is, fit with the first surface 411 of the first film circuit layer 41 in 3rd surface 422 of separator 42, the 4th surface 423 of separator 42 and the second surface 431 of the second membrane circuit layer 43 are fitted, thus form button thin film switch layer; In concrete enforcement, through hole 421 has multiple, the first contact 412 on the first film circuit layer 41 has multiple, the second contact 432 in second membrane circuit layer 43 has multiple, wherein, corresponding first contact 412 of every pass through aperture 432 and second contact 432, each first contact 412 contacts by the second contact 432 that the pass through aperture 421 of correspondence is corresponding with it, thus realizes the conducting of button 100.
See Fig. 6 and Fig. 8, herein only for one second contact 432 of pass through aperture 421, one first corresponding contact 412 and correspondence, Fig. 6 is the reverse partial structurtes schematic diagram faced when separator 42 fits on the first film circuit layer 41 from first direction D1, and through hole 421 is corresponding with the first connecting line 413, second connecting line 416 respectively; Fig. 8 faces partial structurtes schematic diagram when separator 42 fits in the second membrane circuit layer 43 from first direction D1, and through hole 421 is corresponding with the 3rd connecting line 433, the 4th connecting line 436 respectively; When pressing keycap 1 along first direction D1, the first contact 412 can contact the second contact 432 with conducting first external connection line 414 and the second external connection line 434 via through hole 421.Further, through hole 421 has the first edge 4211, in the present embodiment, first edge 4211 respectively with the first connecting line 413, second connecting line 416, 3rd connecting line 433 and the 4th connecting line 436 contact, to make the first connecting line 413, second connecting line 416, the partial denudation of the 3rd connecting line 433 and the 4th connecting line 436 is in through hole 421 place, and respective another part is isolated surface and the first film circuit layer 41 of layer 42, second membrane circuit layer 43 is sandwiched in wherein, that is, another part of first connecting line 413, another part of second connecting line 416 is isolated the 3rd surface 422 of layer 42 and first surface 411 sandwiched of the first film circuit layer 41 respectively, another part of 3rd connecting line 433, another part of 4th connecting line 436 is isolated the 4th surface 423 of layer 42 and second surface 431 sandwiched of the second membrane circuit layer 43 respectively, sandwiched part is not because being dipped in the coalescent moisture in through hole 421 place, and not easily oxidizedly even to break.
In another embodiment, first edge 4211 respectively with the ends contact of the end of the first connecting line 413, the end of the second connecting line 416, the end of the 3rd connecting line 433 and the 4th connecting line 436, be all exposed to through hole 421 place to make the first connecting line 413, second connecting line 416, the 3rd connecting line 433 and the 4th connecting line 436.The end of above-mentioned first connecting line 413 is the junction of the first connecting line 413 and the first outer part 415, the end of above-mentioned second connecting line 416 is the junction of the second connecting line 416 and the first outer part 415, the end of above-mentioned 3rd connecting line 433 is the junction of the 3rd connecting line 433 and the second outer part 435, and the end of above-mentioned 4th connecting line 436 is the junction of the 4th connecting line 436 and the second outer part 435.
So, first outer part 415, second outer part 435 is all arranged at the periphery of through hole 421, avoid the first outer part 415, second outer part 435 to be exposed to through hole 421 place and soak by moisture, and cause respective two circuit cisco unity malfunction or that impedance rising etc. occurs is abnormal simultaneously.Alternative, first edge 4211 can along on back mapping to the first connecting line 413 of this first direction D1 and the second connecting line 416, first edge 4211 can map on the 3rd connecting line 433 and the 4th connecting line 436 along first direction D1, that is the first edge 4211 and the first connecting line 413, second connecting line 416, the 3rd connecting line 433 and the 4th connecting line 436 all have a gap and exist.Preferably, the shape of the first outer part 415 is one of them or combination in any of round ring-type or arcuation, disciform ring-type or arcuation, polygonal ring-type or arcuation, and the shape of the second outer part 435 is one of them or combination in any of round ring-type or arcuation, disciform ring-type or arcuation, polygonal ring-type or arcuation.Whereby, reduce because the oxidation of singular association line produces the risk that the large or singular association line broken string of impedance loop causes circuit abnormality.
The present invention also discloses a kind of embodiment of keyboard, and this keyboard comprises described button 100, and preferably, this button 100 has multiple, and the structure of each this button 100 and function are all same as described above, repeat no more herein.Embodiments of the invention are only for the keyboard of volcanic crater formula framework; certainly; as long as the button thin film switch layer that the keyboard of the keyboard of scissor leg structure or other structures adopts is identical with the button thin film switch layer 4 described in the present embodiment; its function and effect are also identical; also belong to the scope of protection of the invention, repeat no more herein.
The present invention is described by above-mentioned related embodiment, but above-described embodiment is only enforcement example of the present invention.Must it is noted that the embodiment disclosed limit the scope of the invention.On the contrary, change done without departing from the spirit and scope of the present invention and retouching, all belong to scope of patent protection of the present invention.

Claims (10)

1. a button thin film switch layer, is characterized in that, comprises,
The first film circuit layer, has the first contact, the first connecting line, the second connecting line and the first external connection line, and this first contact is electrically connected to this first external connection line respectively by this first connecting line, this second connecting line;
Second membrane circuit layer, has the second contact, the 3rd connecting line, the 4th connecting line and the second external connection line, and this second contact is electrically connected to this second external connection line respectively by the 3rd connecting line, the 4th connecting line; And
Separator, has through hole, and this separator is arranged between this first film circuit layer and this second membrane circuit layer;
Wherein, this through hole is corresponding with this first connecting line, this second connecting line, the 3rd connecting line and the 4th connecting line respectively; When pressing keys, this first contact can contact this second contact with this first external connection line of conducting and this second external connection line via this through hole.
2. button thin film switch layer as claimed in claim 1, it is characterized in that, this the first film circuit layer also has the first outer part, and this first outer part connects this first connecting line, this second connecting line respectively to this first external connection line, and this first outer part corresponds to this through hole periphery.
3. button thin film switch layer as claimed in claim 2, is characterized in that, the shape of this first outer part is one of them or combination of round ring-type or arcuation, disciform ring-type or arcuation, polygonal ring-type or arcuation.
4. button thin film switch layer as claimed in claim 1, it is characterized in that, this second membrane circuit layer also has the second outer part, and this second outer part connects the 3rd connecting line, the 4th connecting line respectively to this second external connection line, and this second outer part corresponds to this through hole periphery.
5. button thin film switch layer as claimed in claim 4, is characterized in that, the shape of this second outer part is one of them or combination of round ring-type or arcuation, disciform ring-type or arcuation, polygonal ring-type or arcuation.
6. button thin film switch layer as claimed in claim 1, it is characterized in that, this through hole has the first edge, and this first edge contacts with this first connecting line, this second connecting line, the 3rd connecting line and the 4th connecting line respectively.
7. button thin film switch layer as claimed in claim 1, it is characterized in that, this through hole has the first edge, this first edge can map on this first connecting line and this second connecting line along first direction, and this first edge can along the back mapping of this first direction on the 3rd connecting line and the 4th connecting line.
8. button thin film switch layer as claimed in claim 1, is characterized in that, this first connecting line, the second connecting line, the 3rd connecting line and the 4th connecting line are made by silver slurry.
9. a button, is characterized in that, comprises the button thin film switch layer described in claim 1 to 8 any one.
10. a keyboard, is characterized in that, comprises multiple button according to claim 9.
CN201610051431.XA 2016-01-25 2016-01-25 Button thin film switch layer, button and keyboard Active CN105529203B (en)

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Application Number Priority Date Filing Date Title
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Application Number Priority Date Filing Date Title
CN201610051431.XA CN105529203B (en) 2016-01-25 2016-01-25 Button thin film switch layer, button and keyboard

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CN105529203B CN105529203B (en) 2017-12-01

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2831381Y (en) * 2005-09-22 2006-10-25 精模电子科技(深圳)有限公司 Contact circuit structure of keyboard membrane switch
CN2870125Y (en) * 2006-01-10 2007-02-14 嘉兴淳祥电子科技有限公司 Novel button-spot electrode structure
CN202434387U (en) * 2011-12-29 2012-09-12 苏州达方电子有限公司 Thin-film switch, key and keyboard with thin-film switch
CN104332340A (en) * 2014-10-31 2015-02-04 苏州达方电子有限公司 Membrane switch layer of keyboard and luminous keyboard

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2831381Y (en) * 2005-09-22 2006-10-25 精模电子科技(深圳)有限公司 Contact circuit structure of keyboard membrane switch
CN2870125Y (en) * 2006-01-10 2007-02-14 嘉兴淳祥电子科技有限公司 Novel button-spot electrode structure
CN202434387U (en) * 2011-12-29 2012-09-12 苏州达方电子有限公司 Thin-film switch, key and keyboard with thin-film switch
CN104332340A (en) * 2014-10-31 2015-02-04 苏州达方电子有限公司 Membrane switch layer of keyboard and luminous keyboard

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