CN206531597U - pressure sensor and wearable device - Google Patents
pressure sensor and wearable device Download PDFInfo
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- CN206531597U CN206531597U CN201720105885.0U CN201720105885U CN206531597U CN 206531597 U CN206531597 U CN 206531597U CN 201720105885 U CN201720105885 U CN 201720105885U CN 206531597 U CN206531597 U CN 206531597U
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Abstract
This application provides a kind of pressure sensor and wearable device.The pressure sensor includes circuit board and electrically conductive elastic structure, wherein, circuit board includes electrode zone, and electrode zone includes spaced multiple electrodes pair；Electrically conductive elastic structure setting is in the side of circuit board, including first area, first area includes conductive part, and when not applying pressure to conductive elastic construction, conductive part is with each electrode pair in isolation, so that each electrode pair is off, when being applied more than turning on the pressure of pressure threshold to conductive elastic construction, electrically conductive elastic structure is deformed upon so that conductive part is contacted with least one electrode pair, so that at least one electrode pair is turned on, the conducting pressure threshold of different electrode pairs is different.The pressure sensor can be applied to the scene of multiple conducting pressure thresholds.
Description
Technical field
The application is related to sensor field, in particular to a kind of pressure sensor and wearable device.
Background technology
The existing relevant report of pressure sensor for intelligent wearable electronic.It is main to be limited in that pressure
Switch conduction pressure is single, it is impossible to the application scenarios applied to multiple conducting pressure thresholds；Also, these pressure sensors is defeated
Go out signal continuous analog signal, analog-to-digital conversion need to be carried out be converted to data signal that follow-up signal transacting could be carried out.
Utility model content
The main purpose of the application is to provide a kind of pressure sensor and wearable device, of the prior art to solve
The problem of pressure sensor can not be applied to multiple conducting pressure threshold scenes.
To achieve these goals, according to the one side of the application, there is provided a kind of pressure sensor, the pressure sensing
Device includes：Circuit board, including electrode zone, above-mentioned electrode zone include spaced multiple electrodes pair；Electrically conductive elastic structure,
The side of foregoing circuit plate, including first area are arranged on, above-mentioned first area includes conductive part, when not to above-mentioned electrically conductive elastic
When structure applies pressure, above-mentioned conductive part is with each above-mentioned electrode pair in isolation so that each above-mentioned electrode pair is in disconnection
State, when being applied more than turning on the pressure of pressure threshold to above-mentioned electrically conductive elastic structure, shape occurs for above-mentioned electrically conductive elastic structure
Become so that above-mentioned conductive part is contacted with least one above-mentioned electrode pair so that at least one above-mentioned electrode pair conducting, different is upper
The conducting pressure threshold for stating electrode pair is different.
Further, above-mentioned electrode zone be located at foregoing circuit plate central area, above-mentioned electrode zone with above-mentioned electricity
The projection of the first vertical plane of the thickness direction of road plate be located at above-mentioned conductive part in the inside of the projection of above-mentioned first plane or
Projection with above-mentioned conductive part in above-mentioned first plane is overlapped.
Further, above-mentioned electrode zone includes multiple negative electrodes and multiple anodes, a pair of above-mentioned negative electrode and above-mentioned anode 1
Should, and one above-mentioned electrode pair of an above-mentioned negative electrode and corresponding above-mentioned anode formation；Or above-mentioned electrode zone includes one
Negative electrode and multiple anodes, an above-mentioned negative electrode form above-mentioned multiple above-mentioned electrode pairs with multiple above-mentioned anodes respectively；Or it is above-mentioned
Electrode zone includes an anode and multiple negative electrodes, and an above-mentioned anode forms above-mentioned multiple above-mentioned respectively at multiple above-mentioned negative electrodes
Electrode pair.
Further, above-mentioned electrode zone includes N number of above-mentioned electrode pair, wherein, X-1 above-mentioned electrode pairs are in above-mentioned electricity
The projection in polar region domain is located at X above-mentioned electrode pairs in the inside of the projection of above-mentioned electrode zone, and X+1 above-mentioned electrode pairs
In above-mentioned negative electrode be located at X above-mentioned electrode pairs above-mentioned negative electrode above-mentioned negative electrode away from X-1 above-mentioned electrode pairs
Above-mentioned anode in side, and X+1 above-mentioned electrode pairs is located at the remote X-1 of the above-mentioned anode of X above-mentioned electrode pairs
The side of the above-mentioned anode of individual above-mentioned electrode pair.
Further, each above-mentioned negative electrode and each above-mentioned anode include segmental arc, vertical section and be connected to above-mentioned segmental arc with it is upper
State the tilting section between vertical section.
Further, above-mentioned electrode zone includes one-to-one above-mentioned negative electrode and above-mentioned anode, each above-mentioned negative electrode or each
The above-mentioned tilting section of above-mentioned anode is on same straight line.
Further, each above-mentioned negative electrode includes first level section, the first vertical section, the second level successively with each above-mentioned anode
Section and the second vertical section, wherein, above-mentioned first level section is parallel with above-mentioned second horizontal segment, above-mentioned first vertical section with it is above-mentioned
Second vertical section is parallel, and above-mentioned first vertical section is connected between above-mentioned first level section and the second horizontal segment, and above-mentioned second
Horizontal segment is connected between above-mentioned first vertical section and above-mentioned second vertical section.
Further, each above-mentioned electrode pair includes one-to-one above-mentioned negative electrode and above-mentioned anode, each above-mentioned negative electrode or each
Above-mentioned second horizontal segment of above-mentioned anode is on same straight line.
Further, above-mentioned first area includes multiple first subregions, and above-mentioned electrode zone includes multiple electrodes sub-district
Domain, above-mentioned first subregion is corresponded with above-mentioned electrode subzone and set, and ought not apply pressure to above-mentioned electrically conductive elastic structure
During power, different above-mentioned first subregions is different from the spacing between the above-mentioned electrode subzone of correspondence position.
Further, foregoing circuit plate also includes the non-electrode region set around above-mentioned electrode zone, above-mentioned conductive bullet
Property structure also include the second area that is set around above-mentioned first area, above-mentioned pressure sensor also includes：Connecting portion, is arranged on
Between above-mentioned non-electrode region and above-mentioned second area, for being fixedly connected with above-mentioned non-electrode region and above-mentioned second area.
Further, above-mentioned connecting portion is pressure-sensitive adhesive band.
Further, foregoing circuit plate also includes the non-electrode region set around above-mentioned electrode zone, and above-mentioned pressure is passed
Sensor also includes：Flexible fastening piece, is arranged on above-mentioned non-electrode region and around above-mentioned electrically conductive elastic structure, for fixation
State electrically conductive elastic structure and foregoing circuit plate.
Further, above-mentioned flexible fastening piece is flexible fastening circle.
According to the another aspect of the application there is provided wearable device, including pressure sensor, the pressure sensor is to appoint
A kind of above-mentioned pressure sensor.
Using the technical scheme of the application, the circuit board of the pressure sensor in the application includes multiple electrodes pair, different
The corresponding conducting pressure threshold of electrode pair it is different, i.e., applying different pressure to conductive elastic construction, (pressure, which is more than, to be turned on
Pressure threshold) when, different electrode pairs conductings, such as when circuit board includes three electrode pairs, respectively first electrode to, second
Electrode pair and the 3rd electrode pair, these three electrode pairs correspondence first turn on pressure threshold, the second conducting pressure threshold and led with the 3rd
Logical pressure threshold, when the pressure applied to conductive elastic construction is less than the first conducting pressure threshold, electrically conductive elastic structure occurs
Deformation, but be not enough to allow conductive region to contact with any one electrode pair, i.e., three electrode pairs are not turned on, when the pressure of application
When more than the first conducting pressure threshold and turning on pressure threshold less than second, electrically conductive elastic structure is deformed upon so that first electrode
Pair and conducting region contacts, and then cause first electrode to conducting, when pressure gradually increase and between second conducting pressure threshold
When between the 3rd conducting pressure threshold, the deformation of electrically conductive elastic structure gradually increases so that second electrode pair and conductive region
Contact, and then cause second electrode to being also switched on, when pressure continues to increase and is more than the 3rd conducting pressure threshold, electrically conductive elastic
The deformation of structure further increases so that the 3rd electrode pair and conducting region contacts, and then the 3rd electrode pair is also switched on.It is logical
Cross to electrically conductive elastic structure apply pressure gradually increase when, sequentially turn on different electrode pairs, and then can be applied to multiple
Turn on the scene of pressure threshold.
Brief description of the drawings
The Figure of description for constituting the part of the application is used for providing further understanding of the present application, and the application's shows
Meaning property embodiment and its illustrate be used for explain the application, do not constitute the improper restriction to the application.In the accompanying drawings：
Fig. 1 shows the structural representation of the pressure sensor provided according to a kind of embodiment of the application；
Fig. 2 shows that structure of the pressure sensor of another embodiment offer of the application in different working condition is shown
It is intended to；
Fig. 3 shows that structure of the pressure sensor of the another embodiment offer of the application in different working condition is shown
It is intended to；
Fig. 4 shows that structure of the pressure sensor of another embodiment offer of the application in different working condition is shown
It is intended to；
Fig. 5 (a), Fig. 5 (b), Fig. 5 (c), Fig. 5 (d), Fig. 5 (e) show that six kinds of embodiments of the application are carried with Fig. 5 (f)
The structural representation of power circuit board；And
Fig. 6 (a), Fig. 6 (b), Fig. 6 (c), Fig. 6 (d) show the conduction that five kinds of embodiments of the application are provided with Fig. 6 (e)
The structural representation of elastic construction.
Wherein, above-mentioned accompanying drawing is marked including the following drawings：
1st, circuit board；2nd, electrically conductive elastic structure；3rd, connecting portion；4th, flexible fastening piece；11st, electrode zone；12nd, non-electrode region
Domain；21st, first area；22nd, second area；10th, electrode pair；101st, negative electrode；102nd, anode；01st, segmental arc；02nd, tilting section；03、
Vertical section；04th, first level section；05th, the first vertical section；06th, the second horizontal segment；07th, the second vertical section；210th, the first sub-district
Domain；110th, electrode subzone.
Embodiment
It is noted that described further below is all exemplary, it is intended to provide further instruction to the application.Unless another
Indicate, all technologies used herein and scientific terminology are with usual with the application person of an ordinary skill in the technical field
The identical meanings of understanding.
It should be noted that term used herein above is merely to describe embodiment, and be not intended to restricted root
According to the illustrative embodiments of the application.As used herein, unless the context clearly indicates otherwise, otherwise singulative
It is also intended to include plural form, additionally, it should be understood that, when in this manual using term "comprising" and/or " bag
Include " when, it indicates existing characteristics, step, operation, device, component and/or combinations thereof.
As background technology is introduced, pressure sensor of the prior art can not be applied to multiple conducting voltage threshold values
Scene, in order to solve technical problem as above, present applicant proposes a kind of pressure sensor and wearable device.
There is provided a kind of pressure sensor in a kind of typical embodiment of the application, as shown in figure 1, the pressure is passed
Sensor includes：Circuit board 1, including electrode zone 11 and electrically conductive elastic structure 2, wherein, above-mentioned electrode zone 11 includes multiple
Every the electrode pair 10 of setting；Electrically conductive elastic structure 2 is arranged on the side of foregoing circuit plate 1, including first area 21, above-mentioned first
Region 21 includes conductive part, such as Fig. 2 to Fig. 4 show the pressure sensor of the application different conditions (do not apply pressure and
Apply different corresponding states of pressure) when structural representation, when not applying pressure to above-mentioned electrically conductive elastic structure 2, on
State conductive part and each above-mentioned electrode pair 10 and be in isolation so that each above-mentioned electrode pair 10 is off, when to above-mentioned
When electrically conductive elastic structure 2 is applied more than turning on the pressure of pressure threshold, above-mentioned electrically conductive elastic structure 2 is deformed upon, above-mentioned conduction
Portion is contacted with least one above-mentioned electrode pair 10 so that at least one above-mentioned electrode pair 10 is turned on, different above-mentioned electrode pairs 10
Conducting pressure threshold it is different.
The circuit board of above-mentioned pressure sensor includes multiple electrodes pair, the corresponding conducting pressure threshold of different electrode pairs
Difference, i.e., when applying different pressure (pressure is more than conducting pressure threshold) to conductive elastic construction, different electrode pairs are led
It is logical, such as when circuit board includes three electrode pairs, respectively first electrode to, second electrode pair and the 3rd electrode pair, these three
Electrode pair correspondence first turns on pressure threshold, the second conducting pressure threshold and the 3rd conducting pressure threshold, when not to electrically conductive elastic
When structure applies pressure, electrically conductive elastic structure is not deformed upon, each electricity in the conductive part and electrode zone of electrically conductive elastic structure
Extremely in isolation, pressure sensor is in off state, when the pressure applied to conductive elastic construction is led less than first
During logical pressure threshold, electrically conductive elastic structure is deformed upon, but is not enough to allow conductive region to contact with any one electrode pair, i.e., three
Individual electrode pair is not turned on, and when the pressure of application is more than the first conducting pressure threshold and turns on pressure threshold less than second, is led
Electric elastic construction is deformed upon so that first electrode pair and conducting region contacts, and then causes first electrode to conducting, to work as pressure
Gradually increase and between second conducting pressure threshold and the 3rd conducting pressure threshold between when, the deformation of electrically conductive elastic structure is gradually
Increase so that second electrode pair and conducting region contacts, and then cause second electrode to being also switched on, when pressure continues to increase and big
When the 3rd conducting pressure threshold, the deformation of electrically conductive elastic structure further increases so that the 3rd electrode pair connects with conductive region
Touch, and then the 3rd electrode pair is also switched on.
During by gradually increasing the pressure that electrically conductive elastic structure applies, different electrode pairs are sequentially turned on, and then cause
The pressure sensor can be applied to the scene of multiple conducting pressure thresholds.When pressure is removed, electrically conductive elastic structure resets, electricity
Extremely pair recover the state isolated with conductive part.
In addition, the scope of the conducting pressure threshold of pressure sensor and the step precision of conducting pressure threshold are (i.e. adjacent
Difference between the corresponding two conductings threshold pressure of electrode pair) can be by the shape of the electrode in the electrode pair on circuit board
Shape, size, height, density and being distributed are adjusted.Furthermore it is also possible to electric property, mechanics by changing electrically conductive elastic structure
Performance and geometry are come the pressure measurement scope for adjusting pressure sensor, repeated and sluggishness.
Also, the signal of pressure sensor output of the prior art is continuous analog signal, and these analog signals need mould
Number conversion, which becomes data signal, could facilitate the processing of follow-up data, and the signal that the pressure sensor in the application is exported is in itself
It is exactly phase step type signal, can conveniently carries out follow-up digitized processing without carrying out analog-to-digital conversion, follow-up letter can be simplified
Number processing system.
Electrically conductive elastic structure in the application can include the conductive layer formed by conductive material with being formed by elastomeric material
Elastomer, wherein, conductive layer is as conductive part, specifically, conductive layer by lamination, coating, bonding, injection or blending etc. into
Type processing technology is compounded to form electrically conductive elastic structure with elastomeric material, furthermore it is possible to select different resistivity according to actual conditions
Material.
Electrically conductive elastic structure in the application can also include the composite formed by conductive material and elastomeric material
Conductive part, specifically can form resilient conductive structures by blending, lamination, coating, bonding or injection.
The elastomeric material in electrically conductive elastic structure in the application can be polyurethane resin, soft polyurethane foam, silicon rubber,
One or more in polyacrylic resin, elastic block copolymer and elastic metallic, above-mentioned resilient conductive structures have excellent
Resilience, fatigue durability and mechanical performance；Above-mentioned electrically conductive elastic structure can pass through structure design, electric property and mechanical property
Can be come the conducting pressure threshold scope for adjusting pressure sensor, repeated and sluggishness.
Circuit board in the application can be flexible PCB, non-flexible circuit board or film or plate with printed conductive layer
Material.Circuit board includes electrode zone, and electrode zone includes electrode pair, by adjusting the width of electrode, density, distribution in electrode pair
And the difference between the corresponding conducting pressure threshold of scope and adjacent electrode pair of the thickness to adjust conducting pressure threshold.Separately
Outside, those skilled in the art can select the electrode in the conductive material formation electrode pair of different resistivity according to actual conditions.
As long as the projection of conductive part in the application with electrode zone on the first plane meet " have the part overlapped, and
And the corresponding electrode zone in part of the coincidence must include at least two electrode pairs ", it so can just realize multiple lead
The application of logical pressure threshold scene.
Specifically, on the basis of above-mentioned condition is met, conductive part and the face of the projection of electrode zone on the first plane
Long-pending size can specifically be set according to actual conditions.For example the projected area of conductive part on the first plane can be less than electrode
The area of the projection of region on the first plane, can also be more than the area of the projection of electrode zone on the first plane.
In order to which each electrode pair realized in electrode zone is both turned on, it is further ensured that the pressure sensor can be applied many
In the scene of individual conducting voltage threshold value.In a kind of embodiment of the application, as shown in Fig. 2 above-mentioned electrode zone 11 is positioned at above-mentioned
The central area of circuit board 1, above-mentioned electrode zone 11 is located at above-mentioned conductive part in above-mentioned first plane in the projection of the first plane
The inside of projection or the projection with above-mentioned conductive part in above-mentioned first plane overlap, the first plane be and foregoing circuit plate 1
The vertical plane of thickness direction.
It should be noted that each electrode pair two electrodes of correspondence in the application, a negative electrode, an anode, also,
The anode of multiple electrodes centering in electrode zone and negative electrode are not necessarily one-to-one, i.e., the number of negative electrode and anode is not
It is certain identical, it can also be one-to-many, i.e., the one multiple negative electrodes of anode correspondence or the multiple anodes of negative electrode correspondence, such as electrode
Region include in five negative electrodes and an anode, this anode and five negative electrodes each form an electrode pair,
And then five electrode pairs formed in the electrode zone；It can also be multi-to-multi, i.e. the multiple negative electrodes of multiple anode correspondences, such as it is electric
Polar region domain includes two negative electrodes and four anodes, wherein, each negative electrode corresponds to two anodes, each negative electrode and corresponding anode shape
Into an electrode pair, and then four electrode pairs formed in the electrode zone.
In a kind of embodiment of the application, such as shown in Fig. 5 (a), Fig. 5 (c), Fig. 5 (d) and Fig. 5 (e), above-mentioned electrode zone
Including multiple anodes 102 and multiple negative electrodes 101, and anode 102 is corresponded with above-mentioned negative electrode 101, and an above-mentioned anode 102
With one electrode pair 10 of the corresponding above-mentioned formation of negative electrode 101.
In another embodiment of the application, above-mentioned electrode zone includes a negative electrode and multiple anodes, an above-mentioned the moon
Pole forms above-mentioned multiple electrodes pair with multiple above-mentioned anodes respectively, or above-mentioned electrode zone includes an anode and multiple the moon
Pole, an above-mentioned anode forms above-mentioned multiple electrodes pair respectively at multiple above-mentioned negative electrodes, and Fig. 5 (b) is illustrated that an anode 102
The situation of the multiple negative electrodes 101 of correspondence.
In a kind of specific embodiment of the application, such as shown in Fig. 5 (a) to Fig. 5 (f), above-mentioned electrode zone 11 includes N number of
Above-mentioned electrode pair 10, be respectively first electrode pair, second electrode pair ... the X-1 electrode pair, the X electrode pair, X+
1 electrode pair ... n-th electrode pair, each above-mentioned electrode pair 10 includes a negative electrode 101 and an anode 102, and X-1 above-mentioned
Electrode pair 10 is located at X above-mentioned electrode pairs 10 in the projection of above-mentioned electrode zone 11 in the projection of above-mentioned electrode zone 11
Negative electrode 101 in portion, and X+1 above-mentioned electrode pairs 10 is located at the remote X-1 of the negative electrode 101 of X above-mentioned electrode pairs 10
Anode 102 in the side of the negative electrode 101 of individual above-mentioned electrode pair 10, and X+1 above-mentioned electrode pairs 10 is located at X above-mentioned electricity
Extremely to 10 anode 102 the anode 102 away from X-1 above-mentioned electrode pairs 10 side.It is so that electrode pair is remote successively
The both sides centrally disposed and that each electrode pair negative electrode and anode are separately positioned on to the center of electrode zone, when to conductive elastomer
When the pressure of application gradually increases, electrode pair is sequentially turned on, and further ensure that the pressure sensor can be applied to multiple lead
In the scene of logical pressure threshold.
In another embodiment of the application, such as Fig. 5 (a), Fig. 5 (b), Fig. 5 (c), shown in Fig. 5 (d) and Fig. 5 (e), it is each on
Stating negative electrode 101 includes segmental arc 01, vertical section 03 with each above-mentioned anode 102 and is connected to above-mentioned segmental arc 01 and above-mentioned vertical section 03
Between tilting section 02.
In order to simplify in the manufacture craft of the pressure sensor, a kind of embodiment of the application, when above-mentioned electrode zone bag
When including one-to-one above-mentioned negative electrode with anode, the above-mentioned tilting section of each above-mentioned negative electrode or each above-mentioned anode is in same straight line
On, such as Fig. 5 (a), Fig. 5 (c) show a case that the tilting section 02 of each negative electrode 101 on same straight line with Fig. 5 (e)；Fig. 5
(d) show a case that the tilting section 02 of each anode 102 on same straight line.
But, above-mentioned negative electrode is not necessarily limited to be respectively provided with the structure of segmental arc, tilting section and vertical section with anode, this
Art personnel can select the concrete structure of the two according to actual conditions, can be respectively provided with above-mentioned structure, can also be equal
Without above-mentioned structure or one of those there is said structure.
In another embodiment in the application, such as shown in Fig. 5 (f), above-mentioned each above-mentioned negative electrode 101 and each above-mentioned anode
102 include the 04, first vertical section 05 of first level section, the second horizontal segment 06 and the second vertical section 07 successively, wherein, above-mentioned the
One horizontal segment 04 is parallel with above-mentioned second horizontal segment 06, and above-mentioned first vertical section 05 is parallel with above-mentioned second vertical section 07, and on
State the first vertical section 05 to be connected between above-mentioned first level section 04 and the second horizontal segment 06, above-mentioned second horizontal segment 06 is connected to
Between above-mentioned first vertical section 05 and above-mentioned second vertical section 07.
In order to simplify in the manufacture craft of the pressure sensor, a kind of embodiment of the application, when above-mentioned electrode zone bag
When including one-to-one above-mentioned negative electrode with anode, above-mentioned second horizontal segment of each above-mentioned negative electrode or each above-mentioned anode is straight in same
On line, Fig. 5 (f) shows the second horizontal segment 06 of each anode 102 on same straight line.
Certainly, negative electrode and anode be not necessarily limited to be respectively provided with first level section, the first vertical section, the second horizontal segment and
The structure of second vertical section, those skilled in the art can select the concrete structure of the two according to actual conditions, can be respectively provided with
Above-mentioned structure, can also without above-mentioned structure or one of those there is said structure.
In the another embodiment of the application, as shown in Fig. 2 foregoing circuit plate 1 also includes non-electrode region 12, it is above-mentioned non-
Electrode zone 12 is set around above-mentioned electrode zone 11.The setting in non-electrode region facilitates consolidating for circuit board and electrically conductive elastic structure
It is fixed.
The circuit board of the application includes substrate with setting the multiple electrodes pair in the substrate or on substrate surface, Duo Ge electricity
Extremely to being arranged at intervals, and multiple electrodes are electrode zone to the region at place.Except electrode in circuit board in the application
Structure and set-up mode from it is of the prior art it is different outside, other features of circuit board, such as the material of electrode and
The material of substrate with it is of the prior art identical, just repeat no more herein.
The shape of electrically conductive elastic structure in the application can be the shape of any technique effect that can realize the application,
Can be cylinder, cuboid or irregular shape.Those skilled in the art can set suitable shape according to actual conditions
The electrically conductive elastic structure of shape.
In a kind of embodiment of the application, such as Fig. 6 (a), Fig. 6 (b), Fig. 6 (c), shown in Fig. 6 (d) and Fig. 6 (e), above-mentioned the
One region 21 is curved surface or plane, the remote above-mentioned electrode zone of above-mentioned first area 21 close to the surface of above-mentioned electrode zone 11
11 surface is curved surface or plane.
In another embodiment in the application, such as shown in Fig. 6 (a), Fig. 6 (b), Fig. 6 (c), Fig. 6 (d) and Fig. 6 (e), on
State second area 22 and protrude from first area close to the surface of circuit board, above-mentioned first area 21 close to the surface of foregoing circuit plate
Remote above-mentioned electrode zone 11 surface protrude from above-mentioned second area 22 remote above-mentioned electrode zone 11 surface.
In order to which preferably above-mentioned resilient conductive structures are fixed on foregoing circuit plate, in a kind of embodiment of the application,
As shown in Fig. 2 and Fig. 4, above-mentioned electrically conductive elastic structure 2 also includes the second area 22 set around above-mentioned first area 21, when not
To above-mentioned electrically conductive elastic structure 2 apply pressure when, on the thickness direction of foregoing circuit plate 1, above-mentioned first area 21 it is close
The distance between the surface of above-mentioned electrode zone 11 and foregoing circuit plate 1 are D1, the close above-mentioned electrode of above-mentioned second area 22
The distance between the surface in region 11 and foregoing circuit plate 1 are D2, D1>D2。
In another embodiment of the application, as shown in Figure 3 and Figure 4, above-mentioned first area 21 includes multiple first sub-districts
Domain 210, and when not applying pressure to above-mentioned electrically conductive elastic structure 2, different above-mentioned first subregion 210 and correspondence position
Spacing between electrode zone 11 is different, and " correspondence position " here is exactly to refer to just to lower section.
In order to better control in the conducting of multiple electrodes pair, a kind of embodiment of the application, as shown in Figure 3 and Figure 4, on
Electrode zone 11 is stated including multiple electrodes subregion 110, a pair of above-mentioned first subregion 210 and above-mentioned electrode subzone 110 1
It should set, and different above-mentioned first subregions 210 is different from the spacing between the above-mentioned electrode subzone 110 of correspondence position,
Here " correspondence position " is exactly to refer to just to lower section.
Because electrode pair can be provided on the surface of substrate or set in the substrate, therefore, above-mentioned electricity
Pole subregion can only include the region of electrode or the region including substrate and electrode.When only including electrode
During region, by electrode is set to different thickness so that spacing between realization and circuit board or the first subregion not
Together, as shown in Fig. 5 (d) and Fig. 5 (e).
It is further to note that the pressure sensor including electrode subzone might not include the first subregion,
The first subregion can not be included, the first subregion can be separately existed in pressure sensor with electrode subzone, also may be used
To be present in pressure sensor simultaneously, those skilled in the art can be configured according to actual conditions.
In order to which preferably electrically conductive elastic structure is fixed on circuit boards, in a kind of embodiment of the application, such as Fig. 2 and figure
Shown in 4, above-mentioned pressure sensor also includes connecting portion 3, is arranged between above-mentioned non-electrode region 12 and above-mentioned second area 22,
For being fixedly connected with above-mentioned non-electrode region 12 and above-mentioned second area 22.
The material of connecting portion in the application can be metal material, organic material and/or inorganic non-metallic material, connection
During part makes circuit board to be Nian Jie, joggle, weld, be hinged, latch and be threadedly coupled with the mode that electrically conductive elastic structure is connected
One or more.
In order to realize that circuit board is connected with electrically conductive elastic structure in a straightforward manner, the raw material of above-mentioned connecting portion is macromolecule
Material, above-mentioned connected mode is bonding.Specific connecting portion can select solvent-borne type adhesive tape, emulsion-type adhesive tape, heat molten type glue
Adhesive tape, pressure sensitive adhesive tape, calendering type adhesive tape or response type adhesive tape.
In another embodiment of the application, above-mentioned connecting portion is pressure-sensitive adhesive band, can so be further ensured that
The reliability that electrically conductive elastic structure is connected with circuit board.
In order to further such that circuit board, electrically conductive elastic sound construction in pressure sensor link together, and enter
One step ensures anti-shear performance, shock resistance and the fatigue behaviour of enhancing pressure sensor.A kind of embodiment of the application
In, as shown in Figures 1 and 2, above-mentioned pressure sensor also includes flexible fastening piece 4, and flexible fastening piece 4 is arranged on above-mentioned non-electrode
On region 12 and around above-mentioned electrically conductive elastic structure 2, for fixing above-mentioned electrically conductive elastic structure 2 and foregoing circuit plate 1.
The material of above-mentioned flexible fastening piece can select acrylic resin, epoxy resin, PUR, unsaturated polyester (UP), room temperature
Sulphurated siliastic and the one or more in high-temperature silicon disulfide rubber.
In order to simplify in a kind of embodiment in technique, the application, the material selection room temperature vulcanization silicon rubber of flexible fastening piece
Glue, the material can be by the process combinings such as dispensing, coating, bonding, injection to conductive plate and around resilient conductive structures.
In the another embodiment of the application, as shown in figure 1, above-mentioned flexible fastening piece 4 is flexible fastening circle.Flexible fastening
Coil structures are simple, easy for installation.
The preparation method of pressure sensor in the application can be any method that can obtain the pressure sensor, tool
In a kind of embodiment of body, the preparation method of pressure sensor comprises the following steps：Conductive layer and elastomeric material are passed through into
Type processing technology is prepared into point elasticity structure；Electrically conductive elastic structure is fixedly connected with circuit board when by the way of bonding
When, after bonding, resilient conductive structures are applied with the normal pressure (thickness directions of parallel circuit boards) of certain time length, to increase
Electrically conductive elastic structure, is fixedly connected by bonding strength using connector with circuit board.
In another specific embodiment, above-mentioned preparation method also includes answering the material of above-mentioned flexible fastening piece through technique
Close around electrically conductive elastic structure and on circuit board.
There is provided a kind of wearable device in the typical embodiment of another of the application, the wearable device includes
Pressure sensor, above-mentioned pressure sensor is any above-mentioned pressure sensor.
The wearable device has multiple conducting pressure thresholds so that its practicality is stronger, and in the wearable device
Pressure sensor output signal due to being phase step type signal, so the later stage needs not move through analog-to-digital conversion so that the equipment
In signal processing apparatus it is simpler.
Specifically, the wearable device can be intelligent shoe, Intelligent insole, intelligent socks, Intelligent cushion and Intellectual garment
The wearable intelligent textiles such as dress.But be not restricted to that these wearable devices mentioned above, those skilled in the art can be with
According to actual conditions by above-mentioned pressure sensor application in any adaptable field.
As can be seen from the above description, the application the above embodiments realize following technique effect：
1), the pressure sensor in the application can be applied to the scene of multiple conducting pressure thresholds, and pressure sensor
The signal of output inherently phase step type signal, follow-up digitized processing can be conveniently carried out without carrying out analog-to-digital conversion, can
To simplify follow-up signal processing system.
2), the wearable device of the application has multiple conducting pressure thresholds so that its practicality is stronger, and this can wear
The output signal of the pressure sensor in equipment is worn due to being phase step type signal, so the later stage needs not move through analog-to-digital conversion, is made
The signal processing apparatus obtained in the equipment is simpler.
The preferred embodiment of the application is the foregoing is only, the application is not limited to, for the skill of this area
For art personnel, the application can have various modifications and variations.It is all within spirit herein and principle, made any repair
Change, equivalent substitution, improvement etc., should be included within the protection domain of the application.
Claims (14)
1. a kind of pressure sensor, it is characterised in that the pressure sensor includes：
Circuit board (1), including electrode zone (11), the electrode zone (11) include spaced multiple electrodes to (10)；
And
Electrically conductive elastic structure (2), is arranged on the side of the circuit board (1), including first area (21), the first area
(21) conductive part is included, when not applying pressure to the electrically conductive elastic structure (2), the conductive part and each electrode pair
(10) it is in isolation so that each electrode pair (10) is off, applies when to the electrically conductive elastic structure (2)
More than conducting pressure threshold pressure when, the electrically conductive elastic structure (2) deforms upon so that the conductive part and at least one
The electrode pair (10) contact so that at least one described electrode pair (10) conducting, the conducting of the different electrode pair (10)
Pressure threshold is different.
2. pressure sensor according to claim 1, it is characterised in that the electrode zone (11) is located at the circuit board
(1) central area, projection of the electrode zone (11) in first plane vertical with the thickness direction of the circuit board (1)
Positioned at the conductive part the inside of the projection of first plane or with the conductive part first plane projection weight
Close.
3. pressure sensor according to claim 1, it is characterised in that
The electrode zone (11) includes multiple negative electrodes (101) and multiple anodes (102), the negative electrode (101) and the anode
(102) correspond, and a negative electrode (101) forms an electrode pair (10) with the corresponding anode (102)；
Or
The electrode zone (11) includes negative electrode (101) and multiple anodes (102), a negative electrode (101) respectively with
Multiple anodes (102) form the multiple electrode pair (10)；Or
The electrode zone (11) includes anode (102) and multiple negative electrodes (101), an anode (102) respectively at
Multiple negative electrodes (101) form the multiple electrode pair (10).
4. pressure sensor according to claim 3, it is characterised in that the electrode zone (11) includes N number of electricity
Extremely to (10), wherein, the X-1 electrode pairs (10) are located at the X electrodes in the projection of the electrode zone (11)
To the negative electrode (101) of (10) in the inside of the projection of the electrode zone (11), and the X+1 electrode pairs (10)
Positioned at the negative electrode away from the X-1 electrode pairs (10) of the negative electrode (101) of the X electrode pairs (10)
(101) anode (102) in side, and the X+1 electrode pairs (10) is located at the individual electrode pairs (10) of X
The side of the anode (102) away from the X-1 electrode pairs (10) of the anode (102).
5. pressure sensor according to claim 3, it is characterised in that each negative electrode (101) and each anode
(102) segmental arc (01), vertical section (03) and the inclination being connected between the segmental arc (01) and the vertical section (03) are included
Section (02).
6. pressure sensor according to claim 5, it is characterised in that the electrode zone (11) includes one-to-one
The tilting section (02) of the negative electrode (101) and the anode (102), each negative electrode (101) or each anode (102)
On same straight line.
7. pressure sensor according to claim 3, it is characterised in that each negative electrode (101) and each anode
(102) first level section (04), the first vertical section (05), the second horizontal segment (06) and the second vertical section (07) are included successively,
Wherein, the first level section (04) is parallel with second horizontal segment (06), first vertical section (05) and described second
Vertical section (07) is parallel, and first vertical section (05) be connected to first level section (04) and the second horizontal segment (06) it
Between, second horizontal segment (06) is connected between first vertical section (05) and second vertical section (07).
8. pressure sensor according to claim 7, it is characterised in that each electrode pair (10) includes one-to-one
Second horizontal segment of the negative electrode (101) and the anode (102), each negative electrode (101) or each anode (102)
(06) on same straight line.
9. pressure sensor according to claim 1, it is characterised in that the first area (21) includes the multiple first sons
Region (210), the electrode zone (11) includes multiple electrodes subregion (110), first subregion (210) and the electricity
Pole subregion (110), which is corresponded, to be set, and when not applying pressure to the electrically conductive elastic structure (2), and different described the
Spacing between one subregion (210) and the electrode subzone (110) of correspondence position is different.
10. pressure sensor according to claim 1, it is characterised in that the circuit board (1) also includes surrounding the electricity
The non-electrode region (12) that polar region domain (11) is set, the electrically conductive elastic structure (2) also includes surrounding the first area (21)
The second area (22) of setting, the pressure sensor also includes：
Connecting portion (3), is arranged between the non-electrode region (12) and the second area (22), described for being fixedly connected
Non-electrode region (12) and the second area (22).
11. pressure sensor according to claim 10, it is characterised in that the connecting portion (3) is pressure-sensitive adhesive band.
12. pressure sensor according to claim 1, it is characterised in that the circuit board (1) also includes surrounding the electricity
The non-electrode region (12) that polar region domain (11) is set, the pressure sensor also includes：
Flexible fastening piece (4), is arranged on the non-electrode region (12) and around the electrically conductive elastic structure (2), for solid
The fixed electrically conductive elastic structure (2) and the circuit board (1).
13. pressure sensor according to claim 12, it is characterised in that the flexible fastening piece (4) is flexible fastening
Circle.
14. a kind of wearable device, including pressure sensor, it is characterised in that the pressure sensor is claim 1 to 13
Any one of pressure sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720105885.0U CN206531597U (en) | 2017-01-23 | 2017-01-23 | pressure sensor and wearable device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720105885.0U CN206531597U (en) | 2017-01-23 | 2017-01-23 | pressure sensor and wearable device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110037707A (en) * | 2019-04-23 | 2019-07-23 | 东北大学 | The precisely wearable vola of identification gait-ground contact force measuring device and method |
-
2017
- 2017-01-23 CN CN201720105885.0U patent/CN206531597U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110037707A (en) * | 2019-04-23 | 2019-07-23 | 东北大学 | The precisely wearable vola of identification gait-ground contact force measuring device and method |
| CN110037707B (en) * | 2019-04-23 | 2021-08-03 | 东北大学 | Wearable sole-ground contact force measuring device and method for accurately identifying gait |
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