CN109450430A - A kind of key mould group and terminal - Google Patents
A kind of key mould group and terminal Download PDFInfo
- Publication number
- CN109450430A CN109450430A CN201811621884.7A CN201811621884A CN109450430A CN 109450430 A CN109450430 A CN 109450430A CN 201811621884 A CN201811621884 A CN 201811621884A CN 109450430 A CN109450430 A CN 109450430A
- Authority
- CN
- China
- Prior art keywords
- pressure drag
- electrode
- flexible piece
- mould group
- drag flexible
- 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.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
- H03K17/94—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the way in which the control signals are generated
- H03K17/965—Switches controlled by moving an element forming part of the switch
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K2217/00—Indexing scheme related to electronic switching or gating, i.e. not by contact-making or -breaking covered by H03K17/00
- H03K2217/94—Indexing scheme related to electronic switching or gating, i.e. not by contact-making or -breaking covered by H03K17/00 characterised by the way in which the control signal is generated
- H03K2217/965—Switches controlled by moving an element forming part of the switch
- H03K2217/9651—Switches controlled by moving an element forming part of the switch the moving element acting on a force, e.g. pressure sensitive element
Abstract
The invention discloses a kind of key mould group and terminals, comprising: insulating medium layer；Pressure drag flexible piece, is set on insulating medium layer；First electrode and second electrode, pressure drag flexible piece are set between first electrode and second electrode；Wherein, first electrode is connect with pressure drag flexible piece, and second electrode is connect with pressure drag flexible piece.The pressure drag flexible piece of the embodiment of the present invention exports different voltage signals when being pressed and not being pressed respectively, the processor of terminal can execute corresponding processing according to different voltage signals, physical button form is replaced by pressure drag flexible piece, without opening up key hole at the terminal, waterproof performance and anti-static electrictity release performance can be improved, it is also ensured that the complete appearance of complete machine.
Description
Technical field
The present invention relates to terminal push module design field more particularly to a kind of key mould groups and terminal.
Background technique
Key is one of basic configuration of terminal, such as: volume button, power button, virtual key.Key passes through pressing
Key panel realizes corresponding function, such as: volume adds, subtracts function, breath screen function, bright screen function.Currently, the key of terminal is general
Using touch-switch, principle is the switching completed between switch conduction and off state using metal clips button.Such as Fig. 1
Shown, when pressing touch-switch 110, deformation occurs touches weld tabs 120 downwards by elastic force effect for elastic slice, so that switching
Two groups of pins 130 be conducted, circuit present on state.When withdrawing external force, elastic slice elasticity is restored, and is detached from weld tabs 120,
Two groups of pins of switch disconnect, and off state is presented in circuit.The general patch of touch-switch 110 is welded on flexible circuit board
On (Flexible Printed Circuit, abbreviation FPC), and guarantee structural strength by increasing steel reinforcement 140, this just leads
It causes to increase using the thickness of the circuit board of touch-switch；And due to that need to be opened at the terminal using the circuit board of touch-switch
Hole processing, causes the waterproof performance of terminal to reduce.
Summary of the invention
The embodiment of the invention provides a kind of key mould group and terminals, are being pressed with solving touch-switch needs in the prior art
Aperture on keyboard plate, poor waterproof properties have the problem of corrosion failure risk after internal feed liquor.
In a first aspect, the embodiment of the invention provides a kind of key mould groups, comprising:
Insulating medium layer；
Pressure drag flexible piece, is set on insulating medium layer；
First electrode and second electrode, pressure drag flexible piece are set between first electrode and second electrode；
Wherein, first electrode is connect with pressure drag flexible piece, and second electrode is connect with pressure drag flexible piece.
Second aspect, the embodiment of the invention also provides a kind of terminals, including above-mentioned key mould group.
In this way in the key mould group and terminal of the embodiment of the present invention, the output when being pressed and not being pressed of pressure drag flexible piece
The processor of different voltage signals, terminal can execute corresponding processing according to different voltage signals, pass through pressure drag flexible piece
It replaces physical button form and waterproof performance and anti-static electrictity release performance can be improved without opening up key hole at the terminal
(Electro-Static discharge, ESD), can also be further ensured that the complete appearance of complete machine.
Detailed description of the invention
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below by institute in the description to the embodiment of the present invention
Attached drawing to be used is needed to be briefly described, it should be apparent that, the accompanying drawings in the following description is only some implementations of the invention
Example, for those of ordinary skill in the art, without any creative labor, can also be according to these attached drawings
Obtain other attached drawings.
Fig. 1 shows the structural schematic diagrams of key mould group in the prior art；
Fig. 2 indicates the structural schematic diagram one of the key mould group of the embodiment of the present invention；
Fig. 3 indicates the structural schematic diagram two of the key mould group of the embodiment of the present invention；
Fig. 4 indicates the structural schematic diagram when key mould group of the embodiment of the present invention is not pressed and is pressed；
Fig. 5 indicates the structural schematic diagram when key mould group of the embodiment of the present invention is pressed.
Wherein, in figure:
110, touch-switch, 120, weld tabs, 130, pin, 140, steel reinforcement；
1, insulating medium layer, 2, pressure drag flexible piece, 3, first electrode, 4, second electrode, the 5, first conduct piece, 6, second leads
Electric part, 7, reinforced structure, 8, cavity structure, 9, panel, 10, double-sided adhesive.
Specific embodiment
The exemplary embodiment that the present invention will be described in more detail below with reference to accompanying drawings.Although showing the present invention in attached drawing
Exemplary embodiment, it being understood, however, that may be realized in various forms the present invention without should be by embodiments set forth here
It is limited.It is to be able to thoroughly understand the present invention on the contrary, providing these embodiments, and can be by the scope of the present invention
It is fully disclosed to those skilled in the art.
In the description of the present invention, it is to be understood that, term " center ", " longitudinal direction ", " transverse direction ", " length ", " width ",
The instructions such as " thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom" "inner", "outside"
Orientation or positional relationship is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of the description present invention and simplification is retouched
It states, rather than the device or element of indication or suggestion meaning must have a particular orientation, be constructed and operated in a specific orientation,
Therefore it is not considered as limiting the invention.
In addition, term " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance
Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or
Implicitly include one or more of the features.In the description of the present invention, the meaning of " plurality " is at least two, such as two
It is a, three etc., unless otherwise specifically defined.
In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " fixation " etc.
Term shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral；It can be mechanical connect
It connects, is also possible to be electrically connected or can communicate with each other；It can be directly connected, can also indirectly connected through an intermediary, it can
To be the interaction relationship of connection or two elements inside two elements.For the ordinary skill in the art,
The specific meanings of the above terms in the present invention can be understood according to specific conditions.
In the present invention unless specifically defined or limited otherwise, fisrt feature second feature "upper" or "lower"
It may include that the first and second features directly contact, also may include that the first and second features are not direct contacts but pass through it
Between other characterisation contact.Moreover, fisrt feature includes the first spy above the second feature " above ", " above " and " above "
Sign is right above second feature and oblique upper, or is merely representative of first feature horizontal height higher than second feature.Fisrt feature exists
Second feature " under ", " lower section " and " following " include that fisrt feature is directly below and diagonally below the second feature, or is merely representative of
First feature horizontal height is less than second feature.
Following disclosure provides many different embodiments or example is used to realize different structure of the invention.In order to
Simplify disclosure of the invention, hereinafter the component of specific examples and setting are described.Certainly, they are merely examples, and
And it is not intended to limit the present invention.In addition, the present invention can in different examples repeat reference numerals and/or reference letter,
This repetition is for purposes of simplicity and clarity, itself not indicate between discussed various embodiments and/or setting
Relationship.In addition, the present invention provides various specific techniques and material example, but those of ordinary skill in the art can be with
Recognize the application of other techniques and/or the use of other materials.
Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings, it should be understood that preferred reality described herein
Apply example only for the purpose of illustrating and explaining the present invention and is not intended to limit the present invention.
The embodiment of the invention provides a kind of key mould groups, and as shown in Figures 2 and 3, which includes: dielectric
Layer 1, pressure drag flexible piece 2, first electrode 3 and second electrode 4.
Wherein, pressure drag flexible piece 2 is set on insulating medium layer 1, and pressure drag flexible piece 2 is to feel using made of pressure drag material
Answer element, the pressure drag material that can be made into pressure drag flexible piece 2 includes but is not limited to semiconductor material, as germanium, polysilicon, amorphous silicon,
Silicon carbide and monocrystalline silicon etc..Pressure drag flexible piece 2 has piezoresistive effect, for using semiconductor silicon production pressure drag flexible piece 2, such as
Shown in Fig. 4, when user's pressing is when (such as metal, the glass or plastics) surface of panel 9 forms slight deformation, this deformation can be transmitted
Onto pressure drag flexible piece 2, and it is converted into voltage signal output.Wherein, pressure drag flexible piece 2 can be pasted onto panel by double-sided adhesive 10
On 9.When pressure drag flexible piece 2 is not pressed, first resistor value is presented in pressure drag flexible piece 2, the voltage letter that pressure drag flexible piece 2 exports
It is known as first voltage signal.When pressure drag flexible piece 2 is pressed, when pressing force acts on silicon crystal, the lattice of crystal is generated
Deformation scatters carrier from an energy valley to another energy valley, causes the mobility of carrier to change, disturbed current-carrying
The average magnitude of sub- vertical and horizontal, so that the resistivity of silicon be made to change, correspondingly the resistance of pressure drag flexible piece 2 is by the first electricity
Change in resistance is second resistance value, and the voltage signal that pressure drag flexible piece 2 exports also changes, at this moment by sensing element output
Voltage signal is known as second voltage signal.
Pressure drag flexible piece 2 is set between first electrode 3 and second electrode 4, wherein first electrode 3 and pressure drag flexible piece 2
Connection, second electrode 4 are connect with pressure drag flexible piece 2, make pressure drag flexible piece 2 to wiring board (such as pcb board or flexible circuit board) shape
At conductive path.Wherein, first electrode 3 and second electrode 3 can be considered that main line and extraneous connection are at least in wiring board
Two electrodes, pressure drag flexible piece 2 export first voltage signal to wiring board when not being pressed, and pressure drag flexible piece 2 is being pressed
When to wiring board export second voltage signal.Wherein, first voltage signal and second voltage signal and above-mentioned at least two electrode
Between voltage value it is related.
It, can without opening up key hole in the terminal of application in this way in such a way that pressure drag flexible piece 2 replaces physical button
Waterproof performance and anti-static electrictity release performance (Electro-Static Discharge, ESD) are improved, can also be further ensured that complete machine
Complete appearance.
Wherein, pressure drag flexible piece 2 is layed on the first surface of the insulating medium layer 1, first electrode 3 and second electrode 4
It is respectively arranged on the first surface of insulating medium layer 1, and is located at the two sides of pressure drag flexible piece 2.Wherein, two sides mentioned here
It is related with the shape of pressure drag flexible piece 2, it is assumed that pressure drag flexible piece 2 be it is rectangular, then two sides can be the rectangular of pressure drag flexible piece 2
Any non-conterminous position in side, such as the different location on the different location on same Quad Sides, or different Quad Sides, or difference
The same position of Quad Sides；By taking pressure drag flexible piece 2 is quadrangle as an example, first electrode 3 and second electrode 4 are located at quadrangle
Opposite two sides of pressure drag flexible piece 2 on.Assuming that pressure drag flexible piece 2 is circle, then two sides can be pressure drag flexible piece 2
Any non-conterminous position on circumference.Wherein, it is worth noting that, first electrode 3 and second electrode 4 can be annular electrode
The two poles of the earth when, Different electrodes end is located at the different location of pressure drag flexible piece 2 on annular electrode.
Further, pressure drag flexible piece 2 is coated on at least portion of first electrode 3 and second electrode 4 far from insulating medium layer 1
Divide on surface.By taking wiring board is flexible circuit board as an example, the route copper on flexible circuit board where route is generally 18 μm, if
Pressure drag flexible piece 2 is directly overlapped in first electrode 3 and second electrode 2, the thickness of the pressure drag material of pressure drag flexible piece 2 need to
It is 18 μm or more few, to guarantee that overlap joint reliability can set 28 μm for the thickness of pressure drag flexible piece 2, the line beyond flexible circuit board
The part that 10 μm of road copper can be coated on first electrode 3 and second electrode 4 far from at least partly surface of insulating medium layer 1, and one
It can guarantee the smooth of pressure drag flexible piece 2, two can guarantee overlap joint reliability.When using conventional keys, the thickness of touch-switch is general
In 0.55mm, weld tabs height is generally 0.05mm or more, is interconnected touch-switch and flexible circuit board generally by welding manner
The structural thickness space of 0.8mm or more is needed, and uses the key modular structure of the embodiment of the present invention, pressure drag flexible piece 2 only needs
28 μm of thickness spaces below, in addition the structural thickness of key mould group can also be limited in 0.2mm after the other component of key mould group
Within, there is more frivolous structural thickness compared with conventional keys.
Further, in order to reduce the noise of sensing element 1, the volume of pressure drag material in sensing element 1 can be reduced, specifically
Mode as shown in figure 3, the embodiment of the present invention key mould group, further includes: the first conduct piece 5 being set on insulating medium layer 1
With the second conduct piece 6.Wherein, the first conduct piece 5 is between first electrode 3 and pressure drag flexible piece 2, for first electrode to be connected
3 and pressure drag flexible piece 2, the second conduct piece 6 is between second electrode 4 and pressure drag flexible piece 2, for 4 He of second electrode to be connected
Pressure drag flexible piece 2.Wherein, the first conduct piece 5 and the second conduct piece 6 can be collectively referred to as electrocondution slurry portion.Wherein, pressure drag flexible piece 2
Edge be electrically connected with first electrode 3 by the first conduct piece 5, the edge of pressure drag flexible piece 2 passes through the second conduct piece 6 and second
Electrode 4 is electrically connected.When external force makes the pressure drag material of pressure drag flexible piece 2 deformation occurs when, the resistance of pressure drag flexible piece 2 will occur
Variation so that the conducting resistance between first electrode 3 and second electrode 4 be made to change, and is exported as electric signal.Specifically
Ground limits the piezoresistive pressure sensor of some low pressure ranges (such as biomedical neck in the sensor due to the presence of noise
Domain) use how to improve signal-to-noise ratio because the smallest resolution ratio is determined by the noise level of device in sensor
(SignalNoise Ratio, SNR) will be a critically important parameter of low pressure range sensors.The source of noise includes intrinsic
Noise and extrinsic noise, extrinsic noise mostly come from interference of external environment, such as external shock etc..Intrinsic noise master
If mainly having mechanical noise and electrical noise from the noise of device itself.And compared with electrical noise, mechanical noise can neglect
Slightly, electrical noise limits the resolution ratio of sensor.1/f noise is then the important sources of electrical noise, and main cause is bulk effect,
As caused by the conductivity fluctuation of resistance.Thermal noise and 1/f noise be fundamentally it is of different nature, thermal noise is that voltage is made an uproar
Sound, therefore need not rely on the size of current in resistance, on the contrary, 1/f noise is conductivity noise, therefore its voltage noise be with
Size of current in resistance is related, and calculation formula is as follows:
Wherein, f indicates frequency, and N indicates the total carrier number of resistance, VbIndicate that the bias voltage at resistance both ends, α are used for
Lattice quality is measured, the value of α is 10-3With 10-7In the range of change.Wherein, the resistance with different surfaces volume ratio can have
There is identical 1/f noise characteristic, and 1/f noise is directly proportional to resistance volume.
Further, as shown in figure 3, the first conduct piece 5 is coated on pressure drag flexible piece 2 and first electrode 3 far from insulation Jie
On at least partly surface of matter layer 1, the second conduct piece 6 is coated on pressure drag flexible piece 2 and second electrode 4 far from insulating medium layer 1
At least partly surface on.Which be pressure drag flexible piece 2 by electrocondution slurry portion respectively with first electrode 3 and second electrode 4
Overlap joint, to guarantee to overlap reliability, the thickness in electrocondution slurry portion be can control at 28 μm or so, and the pressure drag of pressure drag flexible piece 2
The thickness of material then can control at 10 μm or so, is greatly lowered the thickness of pressure drag material in this way, thereby reduces pressure drag
The volume and 1/f noise of material promote the minimum resolution of key mould group entirety.Wherein, the first conduct piece 5 and the second conduct piece
6 material includes but is not limited to: conductive copper paste, conductive silver paste and conductive carbon paste, preferably conductive carbon paste, and conductive carbon paste is a kind of carbon
The liquid type polymer conductivity carbon of fine powder, graphite powder as conductive material and thermosetting phenolic resin as bonding agent
Slurry.Preferred formula is, carbon powder content is 5-10wt.%, graphite powder content 10-15wt.%, and phenolic resin content is
30-40wt.%, vinyl content < 3wt.%, diethylene glycol monoethyl ether acetate content are 10-20wt.%, butyl card
Must alcohol content be 5-15wt.%, diethylene glycol monoethyl ether content be 5-15wt.%, ethylene glycol acetic acid butyl ether content < 5wt.%.
And conductive carbon paste has following advantages:
Impressionability is good: no powdered conductive materials are evenly dispersed by phenolic resin, can be obtained using continuous printing operation
Obtain pore-free and uniformly clear, high reliability conductive coating.
Without problems of electromigration: carbon powder and graphite powder itself chemical property are highly stable, originally in moist and electrification
Body will not migrate；
Without vulcanization problem: carbon powder and graphite powder itself chemical property are highly stable, not with the gas reactions such as sulfur dioxide；
Good reliability: even between curing condition low-temperature short-time, the adherence of hardening coat, moisture-proof, heat resistance are also very
It is good.Performance is also unaffected after carrying out the heat treatment such as tin, therefore carries out solder leveling processing and be also possibly realized.
It is at low cost: main conductive material carbon powder and graphite powder is cheap is easy to get, thus overall cost has more compared with silver paste
Advantage.
Optionally, the key mould group of the embodiment of the present invention further include: wiring board, first electrode 3 and second electrode 4 respectively by
Route on wiring board is formed.
In the embodiment of the present invention, as shown in Figures 2 and 3, key mould group can also include: to be set to insulating medium layer 1
Reinforced structure 7 on second surface, is formed with cavity structure 8 between reinforced structure 7 and insulating medium layer 1, second surface is exhausted
Edge dielectric layer 1 deviates from the surface of pressure drag flexible piece 2, which is located at the lower section of pressure drag flexible piece 2, and it is soft to correspond to pressure drag
Property part 2 is in the view field on reinforced structure 7.Wherein, the assembling structure of the key mould group of the embodiment of the present invention can be successively
It include: panel, double-sided adhesive, pressure drag flexible piece, insulating medium layer and reinforced structure；It is also possible to: panel, double-sided adhesive, reinforcement knot
Structure, insulating medium layer and pressure drag flexible piece.When pressure drag flexible piece 2 is pressed, deformation occurs downwards for meeting in this way, cavity structure 8
Design can effectively reduce absorption of the other materials to pressing force, be easy to the deformation of pressure drag flexible piece 2, so that it is soft effectively to promote pressure drag
The sensitivity of property part 2.
Wherein, reinforced structure 7 includes: the stiffening plate being set on the second surface of insulating medium layer 1, is arranged on stiffening plate
There are aperture or fluting, aperture or fluting are located at pressure drag flexible piece 2 in the view field on stiffening plate.With the first above-mentioned assembly
For structure, as shown in figure 4, pressure drag flexible piece 2 is adhered on panel 9 by double-sided adhesive 10, the effect of the stiffening plate be support and
Fixing circuit board, the effect of aperture or fluting in stiffening plate are the cavity structures 8 to be formed positioned at 2 lower section of pressure drag flexible piece, this
When panel 9 is pressed, pressing force is transmitted on pressure drag flexible piece 2 sample by double-sided adhesive 10, and pressure drag flexible piece 2 is pressed Shi Huixiang
Lower deformation occurs, and aperture or fluting can effectively reduce absorption of the other materials to pressing force, is easy to the deformation of pressure drag flexible piece 2,
To effectively promote the sensitivity of pressure drag flexible piece 2.
Specifically, by taking aperture as an example, aperture is provided on stiffening plate, which is located at pressure drag flexible piece 2 on stiffening plate 7
View field in.That is, in a thickness direction, the lower section of pressure drag flexible piece 2, which is provided with, empties 7 part of stiffening plate
The cavity structure that (aperture 8) is formed, when pressure drag flexible piece 2 is pressed, deformation occurs downwards for meeting, and aperture design can effectively reduce
Absorption of the other materials to pressing force, is easy to the deformation of pressure drag flexible piece 2, to effectively promote the sensitivity of pressure drag flexible piece 2.
Wherein, size of the aperture on structural thickness direction (i.e. perpendicular to the direction of insulating medium layer 1) is 100 μm or more.
Optionally, the reinforced structure 7 in the embodiment of the present invention can also include: the second table for being set to insulating medium layer 1
The first stiffening plate and the second stiffening plate on face, there are gap between the first stiffening plate and the second stiffening plate, which is located at pressure
Hinder the lower section of flexible piece 2.By taking above-mentioned second of assembling structure as an example, as shown in figure 5, double-sided adhesive 10 is by the first stiffening plate and second
Stiffening plate is adhered on panel 9, and when panel 9 is pressed, pressing force is transmitted to the first stiffening plate and second and mended by double-sided adhesive 10
On strong plate, the first stiffening plate and the second stiffening plate can rotate under the action of pressing force close to the side of pressing position, tool
Body, the first stiffening plate and the second stiffening plate are rotated down (i.e. the force direction of pressing force), phase close to the side of pressing position
Ying Di, the side of the first stiffening plate and the second stiffening plate far from pressing position rotate that (i.e. the force direction of pressing force is anti-upwards
Direction), such pressure drag flexible piece 2 can be stretched therewith generates deformation.Further, the thickness of the first stiffening plate and the second stiffening plate
Degree (h as shown in Figure 5) is bigger, and the amount of tension of pressure drag flexible piece 2 is bigger, and the pressing sensitivity of key mould group is higher.
In addition, the key mould group of the embodiment of the present invention only by by pressure drag flexible piece 2 be applied to flexible circuit board on for into
Row explanation, it will be understood by those skilled in the art that the pressure drag flexible piece 2 applies also for pcb board (hardboard) or RFPC (soft or hard knot
Plywood) on, specific structure is similar with the structure of flexible circuit board is applied to, and details are not described herein.
In the key mould group of the embodiment of the present invention, pressure drag flexible piece exports first voltage signal when not being pressed, in quilt
Second voltage signal is exported when pressing, physical button form is replaced by pressure drag flexible piece, without opening up in the terminal of application
Key hole can be improved waterproof performance and anti-static electrictity release performance ESD, can also be further ensured that the complete appearance of complete machine.
Further, the embodiment of the invention also provides a kind of terminal, which includes key mould group as described above.With
For adjusting volume, the processor of terminal executes the operation of elevated volume according to the first voltage signal that pressure drag flexible piece exports,
The operation for reducing volume is executed according to the second voltage signal of pressure drag flexible piece output.Alternatively, the processor of terminal is according to pressure drag
The first voltage signal of flexible piece output executes the operation for reducing volume, is held according to the second voltage signal that pressure drag flexible piece exports
The operation of row elevated volume.
In this way, pressure drag flexible piece exports first voltage signal when not being pressed, in quilt in the terminal of the embodiment of the present invention
Second voltage signal is exported when pressing, the processor of terminal can execute corresponding according to first voltage signal or second voltage signal
Processing replaces physical button form by pressure drag flexible piece, without opening up key hole at the terminal, waterproof performance can be improved and resisting
Electro-static Driven Comb performance, it is also ensured that the complete appearance of complete machine.
All the embodiments in this specification are described in a progressive manner, the highlights of each of the examples are with
The difference of other embodiments, the same or similar parts between the embodiments can be referred to each other.
Although the preferred embodiment of the embodiment of the present invention has been described, once a person skilled in the art knows bases
This creative concept, then additional changes and modifications can be made to these embodiments.So the following claims are intended to be interpreted as
Including preferred embodiment and fall into all change and modification of range of embodiment of the invention.
Finally, it is to be noted that, herein, relational terms such as first and second and the like be used merely to by
One entity or operation are distinguished with another entity or operation, without necessarily requiring or implying these entities or operation
Between there are any actual relationship or orders.Moreover, the terms "include", "comprise" or its any other variant meaning
Covering non-exclusive inclusion, so that process, method, article or terminal device including a series of elements not only wrap
Those elements are included, but also including other elements that are not explicitly listed, or further includes for this process, method, article
Or the element that terminal device is intrinsic.In the absence of more restrictions, being wanted by what sentence "including a ..." limited
Element, it is not excluded that there is also other identical elements in process, method, article or the terminal device for including the element.
Above-described is the preferred embodiment of the present invention, it should be pointed out that the ordinary person of the art is come
It says, can also make several improvements and retouch under the premise of not departing from principle of the present invention, these improvements and modifications also exist
In protection scope of the present invention.
Claims (12)
1. a kind of key mould group characterized by comprising
Insulating medium layer (1)；
Pressure drag flexible piece (2) is set on the insulating medium layer (1)；
First electrode (3) and second electrode (4), the pressure drag flexible piece (2) are set to the first electrode (3) and described second
Between electrode (4)；
Wherein, the first electrode (3) connect with the pressure drag flexible piece (2), and the second electrode (4) and the pressure drag are flexible
Part (2) connection.
2. key mould group according to claim 1, which is characterized in that the pressure drag flexible piece (2) is layed in the insulation
On the first surface of dielectric layer (1), the first electrode (3) and the second electrode (4) are respectively arranged at the dielectric
It is located at the two sides of the pressure drag flexible piece (2) on the first surface of layer (1).
3. key mould group according to claim 1, which is characterized in that further include:
The first conduct piece (5) and the second conduct piece (6) being set on the insulating medium layer (1), wherein described first is conductive
Part (5) is between the first electrode (3) and the pressure drag flexible piece (2), for the first electrode (3) and described to be connected
Pressure drag flexible piece (2), second conduct piece (6) are used between the second electrode (4) and the pressure drag flexible piece (2)
In the conducting second electrode (4) and the pressure drag flexible piece (2).
4. key mould group according to claim 3, which is characterized in that first conduct piece (5) is coated on the pressure drag
Flexible piece (2) and the first electrode (3) are far from at least partly surface of the insulating medium layer (1)；Described second is conductive
Part (6) is coated on the pressure drag flexible piece (2) and the second electrode (4) separate the insulating medium layer (1) at least partly
On surface.
5. key mould group according to claim 3, which is characterized in that first conduct piece (5) and second conduction
The material of part (6) is conductive copper paste, conductive silver paste or conductive carbon paste.
6. key mould group according to claim 1, which is characterized in that the pressure drag flexible piece (2) is coated on described first
Electrode (3) and the second electrode (4) are far from at least partly surface of the insulating medium layer (1).
7. key mould group according to claim 1, which is characterized in that further include:
The reinforced structure (7) being set on the second surface of the insulating medium layer (1), the reinforced structure (7) and it is described absolutely
It is formed between edge dielectric layer cavity structure (8), the second surface is that the insulating medium layer (1) is flexible away from the pressure drag
The surface of part (2), the cavity structure (8) correspond to projected area of the pressure drag flexible piece (2) on the reinforced structure (7)
In domain.
8. key mould group according to claim 7, which is characterized in that the reinforced structure is to be set to the dielectric
Stiffening plate on the second surface of layer (1), aperture or fluting are provided on the stiffening plate, and the aperture or fluting are located at described
Pressure drag flexible piece (2) is in the view field on the stiffening plate.
9. key mould group according to claim 7, which is characterized in that the reinforced structure includes being set to the insulation to be situated between
The first stiffening plate and the second stiffening plate on the second surface of matter layer (1), first stiffening plate and second stiffening plate it
Between there are gap, the gap is located at below the pressure drag flexible piece (2).
10. key mould group according to claim 1, which is characterized in that further include:
Wiring board, the first electrode (3) and the second electrode (4) are formed by the route on the wiring board respectively.
11. key mould group according to claim 1, which is characterized in that the pressure drag flexible piece (2) is pressure drag material support
Sensing element.
12. a kind of terminal, which is characterized in that including the key mould group as described in any one of claims 1 to 11.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811621884.7A CN109450430A (en) | 2018-12-28 | 2018-12-28 | A kind of key mould group and terminal |
| PCT/CN2019/124528 WO2020135044A1 (en) | 2018-12-28 | 2019-12-11 | Key module and terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811621884.7A CN109450430A (en) | 2018-12-28 | 2018-12-28 | A kind of key mould group and terminal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109450430A true CN109450430A (en) | 2019-03-08 |
Family
ID=65538574
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811621884.7A Pending CN109450430A (en) | 2018-12-28 | 2018-12-28 | A kind of key mould group and terminal |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN109450430A (en) |
| WO (1) | WO2020135044A1 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110492880A (en) * | 2019-09-27 | 2019-11-22 | 维沃移动通信有限公司 | The control method of key, electronic equipment and electronic equipment |
| WO2020135044A1 (en) * | 2018-12-28 | 2020-07-02 | 维沃移动通信有限公司 | Key module and terminal |
| CN112587141A (en) * | 2020-12-08 | 2021-04-02 | 歌尔科技有限公司 | Biological monitoring electrode and wearable equipment |
| CN113555243A (en) * | 2021-07-02 | 2021-10-26 | 维沃移动通信有限公司 | Key module and electronic equipment |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105318822A (en) * | 2014-07-02 | 2016-02-10 | 北京科技大学 | Flexible strain sensor based on ultra-long tellurium microwire |
| CN105468199A (en) * | 2015-12-26 | 2016-04-06 | 宸鸿科技(厦门)有限公司 | Panel with pressure sensing |
| CN105847499A (en) * | 2015-02-02 | 2016-08-10 | 利永环球科技股份有限公司 | Embedded button for an electronic device |
| CN108235748A (en) * | 2017-02-10 | 2018-06-29 | 深圳市汇顶科技股份有限公司 | Piezoresistive transducer, pressure-detecting device, electronic equipment |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104579294A (en) * | 2015-01-07 | 2015-04-29 | 李侃 | Capacitor-type key unit and keyboard with key unit |
| JP6330724B2 (en) * | 2015-05-19 | 2018-05-30 | 株式会社デンソー | Capacitance type switch device |
| CN106160722B (en) * | 2016-07-26 | 2019-04-30 | 广东美的厨房电器制造有限公司 | The press-key structure and household electrical appliance of household electrical appliance |
| CN108151930A (en) * | 2018-03-06 | 2018-06-12 | 苏州敏芯微电子技术股份有限公司 | Pressure-detecting device and pressure detecting touch device |
| CN108666171A (en) * | 2018-05-14 | 2018-10-16 | 维沃移动通信有限公司 | A kind of pressure-sensitive circuit board and terminal |
| CN109450430A (en) * | 2018-12-28 | 2019-03-08 | 维沃移动通信有限公司 | A kind of key mould group and terminal |
-
2018
- 2018-12-28 CN CN201811621884.7A patent/CN109450430A/en active Pending
-
2019
- 2019-12-11 WO PCT/CN2019/124528 patent/WO2020135044A1/en active Application Filing
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105318822A (en) * | 2014-07-02 | 2016-02-10 | 北京科技大学 | Flexible strain sensor based on ultra-long tellurium microwire |
| CN105847499A (en) * | 2015-02-02 | 2016-08-10 | 利永环球科技股份有限公司 | Embedded button for an electronic device |
| CN105468199A (en) * | 2015-12-26 | 2016-04-06 | 宸鸿科技(厦门)有限公司 | Panel with pressure sensing |
| CN108235748A (en) * | 2017-02-10 | 2018-06-29 | 深圳市汇顶科技股份有限公司 | Piezoresistive transducer, pressure-detecting device, electronic equipment |
Non-Patent Citations (1)
| Title |
|---|
| 李丽: "压阻式压力传感器信号噪声比(SNR)的分析与提高", 《电子测试》 * |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020135044A1 (en) * | 2018-12-28 | 2020-07-02 | 维沃移动通信有限公司 | Key module and terminal |
| CN110492880A (en) * | 2019-09-27 | 2019-11-22 | 维沃移动通信有限公司 | The control method of key, electronic equipment and electronic equipment |
| WO2021057430A1 (en) * | 2019-09-27 | 2021-04-01 | 维沃移动通信有限公司 | Key, electronic device and method for controlling electronic device |
| CN110492880B (en) * | 2019-09-27 | 2022-05-17 | 维沃移动通信有限公司 | Key, electronic equipment and control method of electronic equipment |
| CN112587141A (en) * | 2020-12-08 | 2021-04-02 | 歌尔科技有限公司 | Biological monitoring electrode and wearable equipment |
| CN112587141B (en) * | 2020-12-08 | 2023-06-02 | 歌尔科技有限公司 | Biological monitoring electrode and wearable equipment |
| CN113555243A (en) * | 2021-07-02 | 2021-10-26 | 维沃移动通信有限公司 | Key module and electronic equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2020135044A1 (en) | 2020-07-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109450430A (en) | A kind of key mould group and terminal | |
| US8350727B2 (en) | Touch panel and electronic device including the same | |
| US4607147A (en) | Membrane switch | |
| US8421332B2 (en) | Capacitive touch screen and method for manufacturing the same | |
| US9535543B2 (en) | Touch panel and method for manufacturing the same | |
| TW201102702A (en) | Capacitive touch panel | |
| CN209182795U (en) | Touch screen and electronic device | |
| US20150220193A1 (en) | Touch panel and display with the same | |
| TW200530903A (en) | Touch sensor with conductive polymer switches | |
| WO2007043756A1 (en) | Line structure of capacitive type touch panel for securing linearity | |
| KR101943649B1 (en) | Detecting sensor for detecting position of indicating by indicator, indicator position detecting device, and method for manufacturing detecting sensor | |
| TW200535703A (en) | Method of manufacturing touch sensor with switch tape strips | |
| CN108762580A (en) | Show equipment, touch sensing and preparation method thereof | |
| JP4622249B2 (en) | Transparent touch panel | |
| JP4942566B2 (en) | Manufacturing method of touch panel | |
| JP5279530B2 (en) | Touch panel | |
| US9141209B2 (en) | Touch panel, display device, and electronic apparatus | |
| JP2007321131A (en) | Electroconductive polymer film, electrode substrate, and switch | |
| CN212258928U (en) | Conductive film and electronic device | |
| JP2008070938A (en) | Touch panel | |
| CN209044561U (en) | Touch screen and electronic device | |
| JP2007324096A (en) | Pressure sensitive switch | |
| CN111211218A (en) | Non-contact human sleep physiological parameter detection sensor transduction unit | |
| JP3771614B2 (en) | Input panel | |
| JPS62116229A (en) | Key hitting force sensor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |