CN108428581A - Button - Google Patents
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- Publication number
- CN108428581A CN108428581A CN201810151211.3A CN201810151211A CN108428581A CN 108428581 A CN108428581 A CN 108428581A CN 201810151211 A CN201810151211 A CN 201810151211A CN 108428581 A CN108428581 A CN 108428581A
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- CN
- China
- Prior art keywords
- button
- circuit layer
- pressing
- contact
- transparent area
- 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.)
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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
- H01H13/12—Movable parts; Contacts mounted thereon
- H01H13/14—Operating parts, e.g. push-button
-
- 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
- H01H13/12—Movable parts; Contacts mounted thereon
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- Push-Button Switches (AREA)
Abstract
The present invention is about a kind of button, keycap is mainly kept in contact membrane switches by the endless elastomeric of for example, helical spring, and pressing force is applied to membrane switches, it can trigger membrane switches conducting, so, button of the present invention can be by the wall size or shape changed in membrane switches, and to adjust the pressing force applied needed for button conducting, and then designing when keycap being allowed to be moved down into pressing stroke half can allow membrane switches to be connected.
Description
Technical field
The present invention relates to a kind of buttons, in more detail, be it is a kind of can by the structure design of membrane switches reduce by
The button of the pressing force of required application when key operation.
Background technology
The trigger switch of conventional keys can be usually distinguished into mechanically with non-mechanical.Mechanical trigger switch can by
A pair of metal electrodes is set in key shell, by this to metal electrode it is in electrical contact whether come the triggering that determines the trigger switch
State, still, this that allow in key-press shell body contact metal electrode, are typically necessary and apply prodigious pressing force to button,
It allows at least one displacement to metal electrode, and causes this in electrical contact between metal electrode, this is using machine
The button of tool formula trigger switch is one of the main themes that This is what people generally disapprove of.
Rubber elastomer (Rubber Dome) can be arranged in the trigger switch of non-mechanical below keycap, with by rubber
Elastomer provides elastic-restoring force to the keycap being pressed, and makes keycap that can be returned to the position before pressing, and to pressing keycap
User provides the interim pressing feel that mechanical trigger switch does not have.However, for enough elastic-restoring forces can be provided,
The volume of rubber elastomer is generally difficult to reduce, therefore is unfavorable for the application of button slimming.In addition, rubber elastomer is in long-term
The situation of ageing of rubber often is had using lower, and then the service life of button is made not promoted effectively.
Therefore, the setting that a pair of metal electrodes of mechanical trigger switch how is saved in button, to reduce button behaviour
The pressing force of required application when making, and the setting of the rubber elastomer of non-mechanical trigger switch is saved, to reduce the thickness of button
Spend and promoted the service life of button, the technical task that as present invention solves.
Invention content
The problem of to improve excessive and thickness needed for above-mentioned key press, service life aspect, the present invention provides one kind and presses
Key.
Above-mentioned button includes：
Button shell, the button shell have top guide structure and lower section guide structure；
Beaer, the beaer are movably embedded at the top guide structure；
Membrane switches, the membrane switches have press section, upper flexible circuit layer and lower plate circuit layer, and can on this
It scratches circuit layer and is respectively provided with upper contact and lower contact with the lower plate circuit layer, wherein when the pressing force that the press section is subject to is big
When triggering pressure, which is in triggering state；
Blocks is pressed, which is movably embedded at the lower section guide structure and is kept in contact the pressing
Portion；And
Endless elastomeric, the endless elastomeric are set in the key-press shell body, and contact respectively should be by for the endless elastomeric
Power body and the pressing blocks, wherein when the non-stress of the beaer, which presses this by the pressing blocks
Splenium applies the first pressing force, if first pressing force is less than the triggering pressure, which is in non-triggering state；
When the beaer is pressed external force, which can be moved by the guiding of the top guide structure along Z-direction, promote this
Endless elastomeric forces the pressing blocks by the guiding edge of the lower section guide structure along the Z-direction reduction length
Z-direction movement, to apply the second pressing force to the press section by the pressing blocks, if second pressing force is more than
The triggering pressure, then flexible circuit layer is deformed towards the lower plate circuit layer on this, keeps the upper contact and the lower contact electric each other
Property contact and trigger the membrane switches.
The present invention also provides a kind of button, which includes：
Keycap；
There is top guide structure and lower section guide structure, the button shell to be set to this for button shell, the button shell
The lower section of keycap；
Beaer, the beaer are movably embedded at the top guide structure；
Blocks is pressed, which is movably embedded at the lower section guide structure；
Endless elastomeric, the endless elastomeric are set in the key-press shell body, which has elastomer top
With elastomer lower part, which abuts the beaer and the pressing blocks respectively with the elastomer lower part；
Membrane switches, the membrane switches have press section, upper flexible circuit layer, wall and lower plate circuit layer,
Wherein,
Flexible circuit layer is set to the lower section of the button shell on this, and flexible circuit layer has upper transparent area and above connects on this
Point, transparent area is located at the lower section of the pressing blocks on this, which is arranged in the lower section of the pressing blocks and positioned at this
Region other than upper transparent area, the press section are located at the top of the upper contact；
The wall is set to the lower section of flexible circuit layer on this, which has conductive channel, the conductive channel position
In the lower section of the upper contact；
The lower plate circuit layer is set to the lower section of the wall, and there is the lower plate circuit layer lower transparent area to be connect under
Point, the lower transparent area are located at the lower section of transparent area on this, which is arranged in the lower section of the upper contact and is located at the lower light transmission
Region other than area；And
There is light-emitting surface, the light-emitting surface to provide light for light source, the light source, and the regional extent of the light-emitting surface is less than or equal on this
The regional extent of transparent area enables the light to be exported via transparent area on this；
Wherein, when the non-stress of the beaer, which is kept in contact the press section and applies the first pressing force,
When first pressing force is less than triggering pressure, which makes the upper contact be detached with the lower contact holding, makes the diaphragm type
Switch is in non-triggering state；
Wherein, when the beaer is pressed external force, the beaer can by the top guide structure guiding and to moving down
It is dynamic, promote endless elastomeric compression to shorten, and at least part of the pressing external force is transmitted on the pressing blocks, make
The pressing blocks applies the second pressing force to the press section, which is more than the triggering pressure, makes flexible electricity on this
Road floor is deformed to the lower plate circuit layer, and makes the upper contact and the lower contact in electrical contact and tactile each other via the conductive channel
Send out the membrane switches.
As optional technical solution, which is hard circuit board, which is set to hard electricity
The top of road plate, the hard circuit board can carry the weight and the pressing external force of the button shell.
As optional technical solution, the lower plate circuit layer include under flexible circuit film and hard floor, it is flexible under this
Circuit film is set on the hard floor, which is set to the top of flexible circuit film under this, which can carry
The weight of the button shell and the pressing external force.
As optional technical solution, which there is upper key shell and lower key shell, the top guide structure to be set to
Key shell on this, the lower section guide structure are set to the lower key shell.
As optional technical solution, which also there is elastomer guide structure, the endless elastomeric to have
Internal cavities, the elastomer guide structure are extended in the vertical direction into the internal cavities, when the endless elastomeric stress,
The endless elastomeric by the elastomer guide structure guiding and vertically reduction length, the vertical direction are thin perpendicular to this
Membrane switch.
As optional technical solution, which is upstanding post-like body, the periphery wheel of the upstanding post-like body
The cavity profile of the corresponding internal cavities of exterior feature, the upstanding post-like body are set to the side that the pressing blocks deviates from the press section,
The outer peripheral edge side of the upstanding post-like body constitutes guide surface, can guide the endless elastomeric along vertical when the endless elastomeric stress
Histogram is to reduction length.
As optional technical solution, which is cylinder, and the circumference of the cylinder corresponds to should
The cavity profile of internal cavities, the cylinder are set to the side that the pressing blocks deviates from the press section, the cylinder it is outer
Peripheral side constitutes guide surface, can guide the endless elastomeric vertically reduction length when the endless elastomeric stress.
As optional technical solution, which is helical spring, and the lower end of the helical spring is socketed in the circle
On cylinder, the half of the development length of the helical spring is more than the development length of the cylinder.
The present invention also provides a kind of button, which includes：
Keycap；
Guiding mechanism, the guiding mechanism may be guided the keycap and move up and down；
Blocks is pressed, which is located at the lower section of the keycap；
Endless elastomeric, the endless elastomeric have elastomer top and elastomer lower part, the elastomer top and the bullet
Property body lower part abuts the keycap and the pressing blocks respectively；
Membrane switches, the membrane switches have press section, upper flexible circuit layer, wall and lower plate circuit layer,
Wherein,
Flexible circuit layer has upper transparent area and upper contact on this, and transparent area is located at the lower section of the pressing blocks on this,
The upper contact is arranged in the lower section of the pressing blocks and the region other than transparent area on this, which, which is located on this, connects
The top of point；
The wall is set to the lower section of flexible circuit layer on this, which has conductive channel, the conductive channel position
In the lower section of the upper contact；
The lower plate circuit layer is set to the lower section of the wall, which there is lower transparent area to be connect under
Point, the lower transparent area are located at the lower section of transparent area on this, which is arranged in the lower section of the upper contact and is located at the lower light transmission
Region other than area；And
There is light-emitting surface, the light-emitting surface to provide light for light source, the light source, and the regional extent of the light-emitting surface is less than or equal on this
The regional extent of transparent area makes the light obtain and is exported via transparent area on this；
Wherein, when the non-stress of the keycap, which is kept in contact the press section and applies the first pressing force, if
First pressing force is less than triggering pressure, then the wall makes the upper contact be detached with the lower contact holding, and the diaphragm type is made to open
It closes and is in non-triggering state；
Wherein, when the keycap is pressed external force, which is moved down by the guiding of the guiding mechanism, promotes the ring-type
Elastomer compression shortens, and at least part of the pressing external force is transmitted on the pressing blocks, makes the pressing blocks
Second pressing force is applied to the press section, if second pressing force is more than the triggering pressure, flexible circuit layer is under this on this
Backplane circuit layer deforms, and makes the upper contact, the lower contact in electrical contact each other via the conductive channel, may achieve the diaphragm type
The triggering of switch.
As optional technical solution, which powers on pole unit comprising plurality of separate, the plurality of separate
Pole unit is powered on to be separated from each other and surround the position for being positioned adjacent to transparent area periphery on this.
As optional technical solution, which includes individual ring top electrode, which powers on extremely closed circle
Body, and around the position for being positioned adjacent to transparent area periphery on this.
As optional technical solution, the light can travel upwardly through the lower transparent area, the conductive channel and this on thoroughly
Light area and enter in the pressing blocks, which has transmission region, which is made of light-transmitting materials,
In, it can continue up traveling into the light in the pressing blocks and reach the transmission region, the keycap can be made to shine.
As optional technical solution, which moves up and down according to predetermined pressing stroke, and the membrane switches is tactile
Time point is sent out when the keycap advances to the half of the predetermined pressing stroke.
As optional technical solution, which further includes feel spring, which can allow the stress body side surface
Concaveconvex structure, when the beaer moves down, the feel spring can to the beaer move down provide it is interim
Elastic resistance.
As optional technical solution, which is ring bodies, which also has cyclic annular abutting portion, the ring
Shape abutting portion contradicts the ring bodies.
Compared with the prior art, button of the invention is mainly kept in contact membrane switches by endless elastomeric, and with
When to membrane switches apply pressing force, when the pressing force applied be less than membrane switches triggering pressure when, then enable film
Formula switch is in non-triggering state, conversely, then triggering film when pressure applied is more than the triggering pressure of membrane switches
Formula switch, in this way, button of the present invention can by the structure design of membrane switches, such as by change membrane switches between
Interlayer size or shape, to change the preset triggering pressure of membrane switches, and then required application is pressed when reducing button operation
Pressure, or even can design the when of allowing keycap to be moved down into pressing stroke half and membrane switches is allowed to be connected.
Below in conjunction with the drawings and specific embodiments, the present invention will be described in detail, but not as a limitation of the invention.
Description of the drawings
Figure 1A is the first embodiment schematic diagram of button of the present invention.
Figure 1B is the vertical figure of part component groups of button shown in Figure 1A.
Fig. 2 is button shown in Figure 1A in the component decomposition map at the first visual angle.
Fig. 3 is button shown in Figure 1A in the component decomposition map at the second visual angle.
Fig. 4 is the vertical view of button shown in Figure 1A.
Fig. 5 A are that button shown in Fig. 4 cuts off the schematic diagram before signal button does not press along I-I line segments.
Fig. 5 B are the partial enlarged view in symbol A meanings region shown in Fig. 5 A.
Fig. 6 A are that button shown in Fig. 4 cuts off the schematic diagram after illustrating key press along I-I line segments.
Fig. 6 B are the enlarged drawing in symbol B meanings region shown in Fig. 6 A.
Fig. 7 is the second embodiment schematic diagram of button of the present invention.
Fig. 8 is button shown in Fig. 7 in the component decomposition map at the first visual angle.
Fig. 9 is button shown in Fig. 7 in the component decomposition map at the second visual angle.
Figure 10 is the vertical view of button shown in Fig. 7.
Figure 11 A are that button shown in Figure 10 cuts off the schematic diagram before signal button does not press along II-II line segments.
Figure 11 B are the enlarged drawing in symbol C meanings region shown in Figure 11 A.
Figure 12 A are that button shown in Figure 10 cuts off the schematic diagram after illustrating key press along II-II line segments.
Figure 12 B are the enlarged drawing in symbol D meanings region shown in Figure 12 A.
Figure 13 A are the first embodiment schematic diagram of the membrane switches of button of the present invention.
Figure 13 B are the first structure example exploded view of membrane switches shown in Figure 13 A.
Figure 13 C are the second configuration example exploded view of membrane switches shown in Figure 13 A.
Figure 13 D are the vertical view of membrane switches shown in Figure 13 A.
Figure 13 E be Figure 13 D shown in membrane switches along III-III line segments cut off signal membrane switches be in do not trigger shape
The schematic diagram of state.
Figure 13 F cut off signal membrane switches along III-III line segments for membrane switches shown in Figure 13 D and are in triggering state
Schematic diagram.
Figure 14 A are the second embodiment schematic diagram of the membrane switches of button of the present invention.
Figure 14 B are the first structure example exploded view of membrane switches shown in Figure 14 A.
Figure 14 C are the second configuration example exploded view of membrane switches shown in Figure 14 A.
Figure 14 D are the vertical view of membrane switches shown in Figure 14 A.
Figure 14 E cut off signal membrane switches along IV-IV line segments for membrane switches shown in Figure 14 D and are in non-triggering state
Schematic diagram.
Figure 14 F cut off signal membrane switches along IV-IV line segments for membrane switches shown in Figure 14 D and are in triggering state
Schematic diagram.
Specific implementation mode
The following contents will arrange in pairs or groups schema, and the technology contents of the present invention are illustrated by particular specific embodiment, are familiar with this skill
The personage of art can be understood the further advantage and effect of the present invention easily by content disclosed in the present specification.The present invention also can be by
It is implemented or is applied by other different specific embodiments.The various details in this specification can also be based on different viewpoints and answer
With, without departing from the spirit of the present invention, the various modifications of progress and change.Especially, the ratio of various components is closed in schema
System and relative position only have exemplary use, not represent the actual state that the present invention is implemented.
For technical thought of the invention, disclosed please also refer to the embodiment of Figure 1A to Figure 14 F：
First embodiment
If Figure 1A to Fig. 6 B illustrates, the button 1 of the present embodiment includes keycap 10, button shell 11, beaer 12, film
Formula switch 13, pressing blocks 14, endless elastomeric 15, light source 16 and feel spring 17.Beaer 12 can be embedded keycap 10 and
It can be used for receiving the pressing force from keycap 10.Feel spring 17 is, for example, torque spring, can allow the recessed of 12 side of beaer
Male structure, when user presses keycap 10 and beaer 12 is caused to move down, feel spring 17 is special due to the spring of itself
Property can provide interim elastic resistance to moving down for beaer 12, and the user of pressing keycap 10 is allowed to experience the stage
Press feel to property.Light source 16 has light-emitting surface 161, and can emit beam to illuminate keycap 10.Button shell 11 is set to thin
The top of membrane switch 13 and the lower section for being set to keycap 10.In this present embodiment, button shell 11 at least by upper key shell 113 with
Lower key shell 114 is formed, and upper key shell 113, lower key shell 114 can be grouped into and be integrated, in inside formed installation space and according to
Sequence accommodates beaer 12, endless elastomeric 15 and pressing blocks 14, and 15 top and the bottom of endless elastomeric is made to distinguish contact body
12 with pressing blocks 14, strength is conducted for flexible deformation, at least a part of of the pressing force that beaer 12 is received passes
Pressing blocks 14 is led, and promotes to press the movement of blocks 14.
More specifically, as Fig. 2, Fig. 3, Fig. 5 A and Fig. 6 A illustrate, endless elastomeric 15 is, for example, helical spring and has
Flexible body top 151, elastomer lower part 152 and internal cavities 153.Elastomer top 151 is supported respectively with elastomer lower part 152
Capacity body 12 and pressing blocks 14, thus, endless elastomeric 15 can be by least the one of the pressing external force that beaer 12 is subject to
It is partially transferred on pressing blocks 14, to reach the triggering of membrane switches 13.
Furthermore in this present embodiment, elastomer guiding is formed away from the side of membrane switches 13 in pressing blocks 14
Structure 141.It is watched from the viewing angles of Fig. 3, the outer peripheral edge of elastomer guide structure 141 can be embedded in endless elastomeric 15, and support
It is connected to the inner surface of endless elastomeric 15, more specifically, in this present embodiment, the circumference of elastomer guide structure 141
Both cavity contour shapes of internal cavities 153 of shape and endless elastomeric 15 geometrically similar contour shape each other,
Therefore elastomer guide structure 141 can extend vertically into the internal cavities 153 of endless elastomeric 15, and complete under elastomer
The abutting in portion 152 and pressing blocks 14.As schematically shown in Figure 3, elastomer guide structure 141 is, for example, the upstanding post-like of cylinder
Body, and in outer peripheral edge side there is guide surface 1411, bootable elastomer lower part 152 to be socketed in pressing blocks 14, it can also be in
When 12 stress of beaer, the vertically reduction length of endless elastomeric 15 is guided, and vertical direction is perpendicular to membrane switches
13, in this present embodiment, forenamed vertical direction can be Z-direction.Optionally, it anticipates as shown in Figure 5A, endless elastomeric 15
The half of development length be more than the development length of pressing blocks 14, it can be ensured that elastomer 15 is by after compression half length, still
There is sufficient length to be socketed on pressing blocks 14, beaer 12 is avoided directly to abut to too early on pressing blocks 14, and shadow
Ring pressing feel when button 1 operates.
Upper key shell 113, lower key shell 114 internal face be respectively arranged with top guide structure 111, lower section guide structure 112,
And beaer 12 can movably be embedded at top guide structure 111, lower section guide structure 112 respectively with pressing blocks 14
In.In this way, when 12 depressed power of beaer, beaer 12 can be moved by the guiding of top guide structure 111 in Z-direction
It is dynamic, endless elastomeric 15 can be promoted to generate flexible deformation along Z-direction reduction length, and then force pressing blocks 14 by
The guiding of lower section guide structure 112 is moved along Z-direction, and reaches the triggering of membrane switches 13.
If Figure 13 B and Figure 13 C illustrate, membrane switches 13 have upper flexible circuit layer 132, lower plate circuit layer 133
With wall 134.Wherein, as Fig. 5 B and Fig. 6 B illustrate, upper flexible circuit layer 132 has press section 131, upper transparent area 1322
With upper contact 1321, press section 131 is the transparent area on the annular section of upper transparent area 1322 of upper flexible circuit layer 132
1322 are located at the lower section of pressing blocks 14, and upper contact 1321 is arranged in the lower section of pressing blocks 14 and is located at upper transparent area
Region other than 1322.
Lower plate circuit layer 133 has rigid appropriate, and can provide button shell 11 structural support, such as Fig. 5 B
Illustrated with Fig. 6 B, there is lower plate circuit layer 133 lower transparent area 1332 and lower contact 1331, lower transparent area 1332 to be located at upper
The lower section in light area 1322, lower contact 1331 are arranged in the lower section of upper contact 1321 and the region other than lower transparent area 1332.
Wall 134 is set between flexible circuit layer 132 and lower plate circuit layer 133；And wall 134 have lead
Circulation passage 1341, conductive channel 1341 extend between upper contact 1321 and lower contact 1331.As shown in figure 3, pressing blocks
14 have cyclic annular abutting portion 142；As shown in Fig. 6 A and Fig. 6 B, when blocks 14 moves down, cyclic annular abutting portion 142 pushes down on
Press section 131 is squeezed, and then upper contact 1321 and lower contact 1331 is made to approach each other, contacts and leads across conductive channel 1341
It is logical.
In addition, the light sent out from 16 light-emitting surface 161 of light source can travel upwardly through lower transparent area 1332, conductive channel
1341 with upper transparent area 1322, and enter pressing blocks 14 in enable keycap 10 shine, wherein beaer 12 have transparent area
Domain 121, pressing blocks 14 be made of light-transmitting materials so that enter pressing blocks 14 in light can continue up traveling and
Reaching transmission region 121 can make keycap 10 shine.
As shown in Fig. 5 A, Fig. 5 B, Figure 13 E and Figure 14 E, when 12 non-stress of beaer, pressing blocks 14 is kept in contact
Press section 131 allows endless elastomeric 15 to apply the first pressing force P1, and institute to press section 131 by pressing blocks 14
The the first pressing force P1 applied is less than 13 preset triggering pressure of membrane switches, makes flexible circuit layer 132 and lower plate electricity
Upper contact 1321, the lower contact 1331 of road floor 133 keep separation, and membrane switches 13 is allowed to be in the state not triggered.
If Fig. 6 A, Fig. 6 B, Figure 13 F and Figure 14 F illustrate, when 12 depressed external force of beaer, beaer 12 can be by
The guiding of top guide structure 111 is moved along Z-direction, promotes endless elastomeric 15 along Z-direction reduction length, and is allowed
The compression of endless elastomeric 15, which shortens, generates elastic-restoring force, at least one of the pressing external force that can be thereby received beaer 12
Divide and be transmitted on pressing blocks 14, and then forces pressing blocks 14 by the guiding of lower section guide structure 112 along Z-direction
It is mobile, to enable pressing blocks 14 apply the second pressing force P2 to press section 131.When the second pressing force that press section 131 is subject to
When P2 is more than 13 preset triggering pressure of membrane switches, then upper flexible circuit layer 132 can become towards lower plate circuit layer 133
Shape, and make upper contact 1321, lower contact 1331 in electrical contact each other via conductive channel 1341, use triggering membrane switches
13。
So the button 1 of the present embodiment promotes to press the triggering membrane switches 13 of blocks 14 by endless elastomeric 15,
And the setting of a pair of metal electrodes of mechanical trigger switch can be saved, therefore, can by the structure design of membrane switches 13,
Change the preset triggering pressure of membrane switches, and then reduce the pressing force of required application when button operation, for example：By
The structure design of membrane switches 13 can make the pressing force of required application when button operation be precisely controlled in 55 g of (pressing forces
It is multiplied by acceleration of gravity for quality, and herein, for simple declaration, pressing force is represented with quality) left and right, and user is allowed to operate
The pressing force of button meets expection.What is more, in this present embodiment, it can also be allowed thin by the structure design of membrane switches 13
The triggering time point of membrane switch 13 avoids membrane switches 13 too early when keycap 10 advances to the half of predetermined pressing stroke
Or triggering too late brings inconvenience to user.
In addition, the button 1 of the present embodiment is because there is endless elastomeric 15, and non-mechanical trigger switch can be saved in bowl-shape
Therefore the setting of rubber elastomer can effectively reduce the thickness of button and promote the service life of button, and in collocation feel spring
After 17 can with and allow the user of pressing keycap 10 to experience interim pressing feel.
However, another, it should be noted that as Figure 13 A to Figure 13 F illustrate, lower plate circuit layer 133 is hard circuit board, under
Contact 1331 is set to the top of hard circuit board, and hard circuit board has a degree of structural strength, and can carry button
The pressing external force that the weight of shell 11 is received with beaer 12.But not limited to this, if Figure 14 A to Figure 14 F illustrate, bottom
The flexible circuit film 1333 at least under of plate circuit layer 133 is constituted with hard floor 1334, under flexible circuit film 1333 be set to
On hard floor 1334, and under the top of flexible circuit film 1333 be provided with lower contact 1331.Hard floor 1334 has certain
The structural strength of degree, and flexible circuit film 1333 can be carried down, the weight of button shell 11 is pressed with what beaer 12 was received
Press external force.
In this present embodiment, as Figure 13 C and Figure 14 C illustrate, the upper contact 1321 of upper flexible circuit layer 132 is at least by multiple
The pole unit 1321a that powers on of several separation is constituted, and the pole unit 1321a that powers on of plurality of separate is separated from each other and surround and set
It is placed in the position on neighbouring 1322 periphery of upper transparent area, can be convenient for completing the circuit layout of upper flexible circuit layer 132.But not with this
It is limited, if Figure 13 B and Figure 14 B illustrate, the upper contact 1321 of upper flexible circuit layer 132 is at least by individual ring top electrode
1321b is constituted, and cyclic annular top electrode 1321b is closed circular ring body, and around the position for being positioned adjacent to 1322 periphery of transparent area
It sets, can be convenient for completing the circuit layout of upper flexible circuit layer 132.
Second embodiment
Compared to above-described embodiment, the setting of beaer and button shell is omitted in the present embodiment, using for example, scissors
The guiding mechanism guiding keycap of foot mechanism moves up and down.More specifically, as Fig. 7 to Figure 12 B illustrates, the present embodiment is pressed
Key 1 includes keycap 10, guiding mechanism 110, membrane switches 13, pressing blocks 14, endless elastomeric 15 and light source 16.Pressing
Blocks 14 is located at the lower section of keycap 10, and with internal cavities for the elastomer lower part 152 of receiving endless elastomeric 15.Separately
Outside, as schematically shown in Figure 9, it is formed with guide surface 1411 on the cavity wall face of the internal cavities of pressing blocks 14, it can be in annular resilient
When 15 stress of body, the vertically reduction length of endless elastomeric 15 is guided.If Figure 11 A and Figure 12 A illustrate, endless elastomeric
15 be, for example, helical spring, and elastomer top 151 abuts keycap 10 and pressing blocks 14 respectively with elastomer lower part 152,
Therefore, when 10 depressed external force of keycap, guiding mechanism 110 can guide keycap 10 to move down, and promote endless elastomeric
15 compressions shorten, and at least part for the pressing external force that keycap 10 is received is transmitted on pressing blocks 14, pressing is made
Blocks 14 applies pressing force to press section 131.
Furthermore if Figure 11 B and Figure 12 B illustrate, the upper flexible circuit layer 132 of membrane switches 13 has upper transparent area
1322 are located at the lower section of pressing blocks 14 with upper contact 1321, upper transparent area 1322, and the setting of upper contact 1321 is blocky in pressing
14 lower section of body and the region other than upper transparent area 1322, can be convenient for the circuit layout of upper flexible circuit layer 132.As Figure 11 B,
Figure 12 B are illustrated, and the regional extent of the light-emitting surface 161 of light source 16 is less than or equal to the regional extent of upper transparent area 1322, makes light extraction
The light that face 161 is provided can be exported via upper transparent area 1322.If Figure 13 A, Figure 13 F illustrate, membrane switches 13 are pressed
Splenium 131 is located at the top of upper contact 1321, can be convenient for promoting upper contact 1321 to move when receiving pressing force, and allows upper contact
1321 can lower contact 1331 in electrical contact.Wall 134 is set to the lower section of flexible circuit layer 132, can be convenient for that separate can
Scratch both circuit layer 132 and lower plate circuit layer 133.If Figure 13 E to Figure 13 F and Figure 14 E to Figure 14 F illustrate, diaphragm type is opened
The conductive channel 1341 for closing 13 wall 134 is located at the lower section of upper contact 1321, when can be convenient for 131 stress of press section, allows
Contact 1321 passes through and in electrical contact with lower contact 1331.Lower plate circuit layer 133 is set to the lower section of wall 134, and has
There are lower transparent area 1332 and lower contact 1331, lower transparent area 1332 to be located at the lower section of upper transparent area 1322, lower contact 1331 is arranged
In the lower section of upper contact 1321 and the region other than lower transparent area 1332, the circuit cloth of lower plate circuit layer 133 can be convenient for
Office.If Figure 11 B, Figure 12 B illustrate, the regional extent of the light-emitting surface 161 of light source 16 is less than or equal to the region of lower transparent area 1332
Range makes the light that light-emitting surface 161 is provided that can be exported via lower transparent area 1332.
When the present embodiment is implemented, if Figure 11 A to Figure 11 B illustrate, when 10 non-stress of keycap, pressing blocks 14 is protected
It holds contact press section 131 and applies the first pressing force P1 ', when the first pressing force P1 ' is less than the triggering pressure of membrane switches 13
When, wall 134 separates upper contact 1321 and lower contact 1331, and upper contact 1321 is made to keep detaching with lower contact 1331, and allows
Membrane switches 13 are in non-triggering state.
Furthermore if Figure 12 A to Figure 12 B illustrate, when 10 depressed external force of keycap, keycap 10 can be guided mechanism
110 guiding and move down, promote endless elastomeric 15 compression shorten and generate elastic-restoring force, will thereby press external force
At least part is transmitted on pressing blocks 14, and pressing blocks 14 is made to apply the second pressing force P2 ' to press section 131, if
Second pressing force P2 ' is more than the triggering pressure of membrane switches 13, then 132 downward backplane circuit layer 133 of upper flexible circuit layer becomes
Shape, and make upper contact 1321, lower contact 1331 in electrical contact each other via conductive channel 1341, it may achieve the membrane switches 13
Triggering.
In conclusion the button of the present invention is mainly protected by the endless elastomeric of for example, helical spring and pressing blocks
Contact membrane switches are held, and pressing force is applied to membrane switches, when the pressing force applied is less than touching for membrane switches
When sending out pressure, then membrane switches is enabled to be in non-triggering state, conversely, when pressure applied is more than the triggering of membrane switches
Membrane switches are then triggered when pressure, in this way, button of the present invention can be by the structure design of membrane switches, such as pass through change
Wall size in membrane switches or shape to change the preset triggering pressure of membrane switches, and then reduce button behaviour
The pressing force of required application when making, what is more, can also design the when of allowing keycap to be moved down into pressing stroke half allows diaphragm type to open
Close conducting.In addition, the present invention can also allow the triggering time point of membrane switches in keycap row by the structure design of membrane switches
When entering the half of predetermined pressing stroke, and avoid membrane switches too early or triggering too late bring inconvenience to user.
Certainly, the present invention can also have other various embodiments, without departing substantially from spirit of that invention and its in the case of, be familiar with this
The technical staff in field can make various corresponding change and deformations according to the present invention, but these corresponding change and deformations are all answered
Belong to the protection domain of appended claims of the invention.
Claims (16)
1. a kind of button, which is characterized in that the button includes：
Button shell, the button shell have top guide structure and lower section guide structure；
Beaer, the beaer are movably embedded at the top guide structure；
Membrane switches, the membrane switches have press section, upper flexible circuit layer and lower plate circuit layer, and flexible electricity on this
Road floor is respectively provided with upper contact and lower contact with the lower plate circuit layer, wherein is touched when the pressing force that the press section is subject to is more than
When sending out pressure, which is in triggering state；
Blocks is pressed, which is movably embedded at the lower section guide structure and is kept in contact the press section；With
And
Endless elastomeric, which is set in the key-press shell body, and the endless elastomeric contacts the beaer respectively
With the pressing blocks, wherein when the non-stress of the beaer, the endless elastomeric is by the pressing blocks to the press section
Apply the first pressing force, if first pressing force is less than the triggering pressure, which is in non-triggering state；When this
Beaer be pressed external force when, which can be moved by the guiding of the top guide structure along Z-direction, promote the ring-type
Elastomer forces the pressing blocks by the guiding of the lower section guide structure along the Z along the Z-direction reduction length
Axis direction moves, to apply the second pressing force to the press section by the pressing blocks, if second pressing force is touched more than this
Pressure is sent out, then flexible circuit layer is deformed towards the lower plate circuit layer on this, and the upper contact is made to be electrically connected with each other with the lower contact
It touches and triggers the membrane switches.
2. a kind of button, which is characterized in that the button includes：
Keycap；
There is top guide structure and lower section guide structure, the button shell to be set to the keycap for button shell, the button shell
Lower section；
Beaer, the beaer are movably embedded at the top guide structure；
Blocks is pressed, which is movably embedded at the lower section guide structure；
Endless elastomeric, the endless elastomeric are set in the key-press shell body, which has elastomer top and bullet
Property body lower part, which abuts the beaer and the pressing blocks respectively with the elastomer lower part；
Membrane switches, the membrane switches have press section, upper flexible circuit layer, wall and lower plate circuit layer, wherein
Flexible circuit layer is set to the lower section of the button shell on this, and flexible circuit layer has upper transparent area and upper contact on this,
Transparent area is located at the lower section of the pressing blocks on this, which is arranged in the lower section of the pressing blocks and is located on this thoroughly
Region other than light area, the press section are located at the top of the upper contact；
The wall is set to the lower section of flexible circuit layer on this, which has conductive channel, which is located at should
The lower section of upper contact；
The lower plate circuit layer is set to the lower section of the wall, and the lower plate circuit layer has lower transparent area and lower contact,
The lower transparent area is located at the lower section of transparent area on this, the lower contact be arranged the lower section of the upper contact and positioned at the lower transparent area with
Outer region；And
There is light-emitting surface, the light-emitting surface to provide light for light source, the light source, and the regional extent of the light-emitting surface is less than or equal to light transmission on this
The regional extent in area enables the light to be exported via transparent area on this；
Wherein, when the non-stress of the beaer, which is kept in contact the press section and applies the first pressing force, when this
When first pressing force is less than triggering pressure, which makes the upper contact be detached with the lower contact holding, makes the membrane switches
In non-triggering state；
Wherein, when the beaer is pressed external force, which can be moved down by the guiding of the top guide structure, be promoted
So that endless elastomeric compression is shortened, and at least part of the pressing external force be transmitted on the pressing blocks, make this by
Blocks is pressed to apply the second pressing force to the press section, which is more than the triggering pressure, makes flexible circuit layer on this
It is deformed to the lower plate circuit layer, and makes the upper contact in electrical contact each other with the lower contact via the conductive channel and trigger and be somebody's turn to do
Membrane switches.
3. button as claimed in claim 1 or 2, which is characterized in that the lower plate circuit layer is hard circuit board, the lower contact
It is set to the top of the hard circuit board, which can carry the weight and the pressing external force of the button shell.
4. button as claimed in claim 1 or 2, which is characterized in that the lower plate circuit layer include under flexible circuit film with it is hard
Matter bottom plate, flexible circuit film is set on the hard floor under this, which is set to the top of flexible circuit film under this, should
Hard floor can carry the weight and the pressing external force of the button shell.
5. button as claimed in claim 1 or 2, which is characterized in that the button shell has upper key shell and lower key shell, the top
Guide structure is set to key shell on this, which is set to the lower key shell.
6. button as claimed in claim 1 or 2, which is characterized in that the pressing blocks also has elastomer guide structure, should
Endless elastomeric has internal cavities, which extends in the vertical direction into the internal cavities, when the ring
When shape elastomer stress, the endless elastomeric by the elastomer guide structure guiding and vertically reduction length, this hangs down
Histogram is to perpendicular to the membrane switches.
7. button as claimed in claim 6, which is characterized in that the elastomer guide structure is upstanding post-like body, the right cylinder
The circumference of shape body corresponds to the cavity profile of the internal cavities, which is set to the pressing blocks away from should be by
The outer peripheral edge side of the side of splenium, the upstanding post-like body constitutes guide surface, can guide the ring when endless elastomeric stress
Shape elastomer vertically reduction length.
8. button as claimed in claim 6, which is characterized in that the elastomer guide structure is cylinder, the cylinder it is outer
The cavity profile that profile corresponds to the internal cavities is enclosed, which is set to the side that the pressing blocks deviates from the press section,
The outer peripheral edge side of the cylinder constitutes guide surface, the endless elastomeric can be guided along Vertical Square when the endless elastomeric stress
To reduction length.
9. button as claimed in claim 8, which is characterized in that the endless elastomeric is helical spring, under the helical spring
End cap is connected on the cylinder, and the half of the development length of the helical spring is more than the development length of the cylinder.
10. a kind of button, which is characterized in that the button includes：
Keycap；
Guiding mechanism, the guiding mechanism may be guided the keycap and move up and down；
Blocks is pressed, which is located at the lower section of the keycap；
Endless elastomeric, the endless elastomeric have elastomer top and elastomer lower part, the elastomer top and the elastomer
Lower part abuts the keycap and the pressing blocks respectively；
Membrane switches, the membrane switches have press section, upper flexible circuit layer, wall and lower plate circuit layer, wherein
Flexible circuit layer has upper transparent area and upper contact on this, and transparent area is located at the lower section of the pressing blocks on this, the upper contact
It is arranged in the lower section of the pressing blocks and the region other than transparent area on this, which is located at the upper of the upper contact
Side；The wall is set to the lower section of flexible circuit layer on this, which there is conductive channel, the conductive channel to be located on this
The lower section of contact；The lower plate circuit layer is set to the lower section of the wall, which has lower transparent area under
Contact, the lower transparent area are located at the lower section of transparent area on this, which is arranged in the lower section of the upper contact and positioned at this is lower
Region other than light area；And
There is light-emitting surface, the light-emitting surface to provide light for light source, the light source, and the regional extent of the light-emitting surface is less than or equal to light transmission on this
The regional extent in area makes the light obtain and is exported via transparent area on this；
Wherein, when the non-stress of the keycap, which is kept in contact the press section and applies the first pressing force, if this
One pressing force is less than triggering pressure, then the wall makes the upper contact be detached with the lower contact holding, makes at the membrane switches
In non-triggering state；
Wherein, when the keycap is pressed external force, which is moved down by the guiding of the guiding mechanism, promotes the annular resilient
Body compression shortens, and at least part of the pressing external force is transmitted on the pressing blocks, makes the pressing blocks to this
Press section applies the second pressing force, if second pressing force is more than the triggering pressure, flexible circuit layer is to the lower plate on this
Circuit layer deforms, and makes the upper contact, the lower contact in electrical contact each other via the conductive channel, may achieve the membrane switches
Triggering.
11. the button as described in claim 2 or 10, which is characterized in that the upper contact includes the top electrode list of plurality of separate
The pole unit that powers on of member, the plurality of separate is separated from each other and surround the position for being positioned adjacent to transparent area periphery on this.
12. the button as described in claim 2 or 10, which is characterized in that the upper contact includes individual ring top electrode, the ring-type
Extremely closed circle body is powered on, and around the position for being positioned adjacent to transparent area periphery on this.
13. the button as described in claim 2 or 10, which is characterized in that the light can travel upwardly through the lower transparent area, be somebody's turn to do
Conductive channel with this on transparent area and enter the pressing blocks in, the beaer have transmission region, the pressing blocks by
Light-transmitting materials are made, wherein and it can continue up traveling into the light in the pressing blocks and reach the transmission region, it can
The keycap is set to shine.
14. the button as described in claim 2 or 10, which is characterized in that the keycap is moved up and down according to predetermined pressing stroke, and
The triggering time point of the membrane switches is when the keycap advances to the half of the predetermined pressing stroke.
15. the button as described in claim 2 or 10, which is characterized in that the button further includes feel spring, which can
It arranges in pairs or groups the concaveconvex structure of the stress body side surface, when the beaer moves down, which can be to the downward of the beaer
It is mobile that interim elastic resistance is provided.
16. the button as described in claim 1,2 or 10, which is characterized in that the press section is ring bodies, and the pressing blocks is also
With cyclic annular abutting portion, which contradicts the ring bodies.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810151211.3A CN108428581A (en) | 2018-02-14 | 2018-02-14 | Button |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810151211.3A CN108428581A (en) | 2018-02-14 | 2018-02-14 | Button |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108428581A true CN108428581A (en) | 2018-08-21 |
Family
ID=63157059
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810151211.3A Withdrawn CN108428581A (en) | 2018-02-14 | 2018-02-14 | Button |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108428581A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114556509A (en) * | 2019-12-18 | 2022-05-27 | 科世达汽车电气有限及两合公司 | Functional component with key function |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5201824A (en) * | 1989-10-06 | 1993-04-13 | Alps Electric Co., Ltd. | Push button switch |
| CN203055744U (en) * | 2012-12-19 | 2013-07-10 | 致伸科技股份有限公司 | Luminous keyboard |
| CN203423097U (en) * | 2013-09-25 | 2014-02-05 | 胡恒 | Soundless luminescent mechanical button and keyboard |
| CN204088129U (en) * | 2014-05-30 | 2015-01-07 | 张文嵛 | Key switch, push-button unit and computor-keyboard |
-
2018
- 2018-02-14 CN CN201810151211.3A patent/CN108428581A/en not_active Withdrawn
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5201824A (en) * | 1989-10-06 | 1993-04-13 | Alps Electric Co., Ltd. | Push button switch |
| CN203055744U (en) * | 2012-12-19 | 2013-07-10 | 致伸科技股份有限公司 | Luminous keyboard |
| CN203423097U (en) * | 2013-09-25 | 2014-02-05 | 胡恒 | Soundless luminescent mechanical button and keyboard |
| CN204088129U (en) * | 2014-05-30 | 2015-01-07 | 张文嵛 | Key switch, push-button unit and computor-keyboard |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114556509A (en) * | 2019-12-18 | 2022-05-27 | 科世达汽车电气有限及两合公司 | Functional component with key function |
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Application publication date: 20180821 |