CN209172705U - A kind of sense electronics wet absorption articles - Google Patents
A kind of sense electronics wet absorption articles Download PDFInfo
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- CN209172705U CN209172705U CN201721452522.0U CN201721452522U CN209172705U CN 209172705 U CN209172705 U CN 209172705U CN 201721452522 U CN201721452522 U CN 201721452522U CN 209172705 U CN209172705 U CN 209172705U
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Abstract
The utility model provides a kind of sense electronics wet absorption articles, comprising: successively the flexible water film of lamination, absorbed layer and permeable braid layer, the absorbed layer are used to absorb the liquid entered from permeable braid layer from bottom to up；It is set at least one the first flexible electrodes of the flexible water film on the surface of the absorbed layer；The flexible water film is set to towards on the surface of the absorbed layer, and at least one the second flexible electrodes between the flexible water film and the absorbed layer；The flexible water film, first flexible electrode, second flexible electrode and the liquid being contained in the absorbed layer constitute a nonpolarity variable electrolytic capacitor, by the detection of the capacitance to the nonpolarity variable electrolytic capacitor, the dampness of the sense electronics wet absorption articles is known.
Description
Technical field
The utility model relates to absorbent item field more particularly to a kind of sense electronics wet absorption articles.
Background technique
Disposable absorbent article includes the absorbent articles such as paper diaper, nappy and sanitary napkin, and the disposable absorption is used
All there is needs replacement in due course in product, if replacement is excessively frequent, not only trouble but also waste；But if getting in return too
Late, it is likely that will cause liquid leakage, because the absorbability of absorbent item is limited.How dynamic detection and display
Whether the excretion situation of user, including the absorbability of voiding times, excretion and absorbent item have been approached the feelings of saturation
Condition has comparable reference value to the reasonable employment of absorbent item.
However tradition is urinated information provided by wet detection technique and is limited, a kind of technology of one of the most common is to pass through urine
Electric pole short circuit is generated the wet standby signal of urine by liquid, and this wet detection mode of urine is only able to detect whether urine is wet has sent out in principle
It gives birth to and cannot detect how urinate wet degree, the multidate information and absorbent item for entirely urinating wet process can not be provided
Whether close to the information being saturated, this needs new technical solution and goes to solve absorbability.
Utility model content
Technical problem to be solved by the utility model is to provide a kind of sense electronics wet absorption articles, it can be achieved that quantization
Wet detection function is urinated, and promotes the sensitivity of detection, enhances anti-interference ability, prevents moist hand or skin from touching electrode and making
Occur false alarm at short circuit, and can self-adapting detecting absorbent article humidity and degree of saturation.
In order to solve the above-mentioned technical problem, the utility model provides a kind of sense electronics wet absorption articles, comprising:
Successively the flexible water film of lamination, absorbed layer and permeable braid layer, the absorbed layer are used to inhale from bottom to up
Receive the liquid entered from permeable braid layer；
It is set at least one the first flexible electrodes of the flexible water film on the surface of the absorbed layer；
The flexible water film is set to towards on the surface of the absorbed layer, and be located at the flexible water film with
At least one the second flexible electrodes between the absorbed layer；
The flexible water film, first flexible electrode, second flexible electrode and it is contained in the absorption
Liquid in layer constitutes a nonpolarity variable electrolytic capacitor, wherein first flexible electrode, the second flexible electrode conduct
Two electrodes of the nonpolarity variable electrolytic capacitor, the flexible water film is as the nonpolarity variable electrolytic capacitor
The dielectric of device, liquid electrolyte of the liquid as the nonpolarity variable electrolytic capacitor in the absorbed layer, by right
The detection of the capacitance of the nonpolarity variable electrolytic capacitor, knows the dampness of the sense electronics wet absorption articles.
Wherein, positive throwing of second flexible electrode in the flexible water film surface for being provided with first flexible electrode
Shadow partly overlaps with first flexible electrode formation.
Wherein, the width of first flexible electrode is equal with the width of the second flexible electrode, and the overlapping region
Width be first flexible electrode or the second flexible electrode width 1/5th to half.
Wherein, the width of first flexible electrode is greater than the width of second flexible electrode, second flexible electrical
Pole the flexible water film surface for being provided with first flexible electrode orthographic projection, be located at first flexible electrode it
It is interior.
Wherein, the width of first flexible electrode is 2-5 times of the second flexible electrode width.
Wherein, the flexible water film is also covered with flexible cover sheet backwards to the absorbed layer on one side.
Wherein, the flexible cover sheet is non-woven fabrics.
Wherein, the absorbed layer include any one of wood pulp, cotton pulp, hydroscopic high-molecular resin for absorbing liquid or
Any combination.
Wherein, first flexible electrode and second flexible electrode are using carbon electrically conductive ink described flexible anti-
The wet line of induction of urine made of being printed on water film.
Wherein, the sense electronics wet absorption articles are any one of paper diaper, nappy, paper urine pad and sanitary napkin.
The beneficial effect of the utility model embodiment is, passes through the flexible water film two in sense electronics wet absorption articles
The first flexible electrode and the second flexible electrode is respectively set in side surface, and the first, second flexible electrode is enabled to overlap generation
The initial capacitance value of one precognition, and become the basis for urinating wet degree judgement；Second flexible electrode can be used directly with absorption
The absorbed layer of product contacts；Above-mentioned flexible water film, the first, second flexible electrode and the liquid being contained in absorbed layer are formed
One variable electrolytic capacitor with electrolytic liquid electrode, need to only can be changed the capacitance and its variation of electrolytic capacitor to this
It is detected, can know the dampness of sense electronics wet absorption articles；Can not only detection sensitivity be made effectively to be promoted, more
Anti-interference ability can be greatly enhanced, and can prevent moist hand or skin from touching two electrodes simultaneously and cause short-circuit and report by mistake
Alert situation, additionally can self-adapting detecting absorbent article humidity and degree of saturation.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor
Under, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is a kind of the schematic diagram of the section structure of sense electronics wet absorption articles of the utility model embodiment.
Capacitor and electricresistance effect of the Fig. 2 between a kind of two electrodes of sense electronics wet absorption articles of the utility model embodiment
Schematic diagram.
Fig. 3 is the structural schematic diagram that the utility model embodiment implements capacitance detecting to sense electronics wet absorption articles.
Fig. 4 is the relation schematic diagram of moist area and capacitor in the utility model embodiment.
Fig. 5 is a kind of sense electronics wet absorption articles of the utility model embodiment by the first, second flexible electrode part
Overlapping, realizes the design diagram of adaptive humidity and degree of saturation monitoring function.
Fig. 6 is that a kind of first, second flexible electrode of sense electronics wet absorption articles of the utility model embodiment is completely overlapped,
Realize the design diagram of adaptive humidity and degree of saturation monitoring function.
Fig. 7 is a kind of moist degree schematic diagram of sense electronics wet absorption articles of the utility model embodiment.
Fig. 8 is that a kind of first, second flexible electrode of sense electronics wet absorption articles of the utility model embodiment is electrolysed
Capacitor and electricresistance effect schematic diagram after matter liquid is drenched.
Fig. 9 is the capacitor and electricresistance effect schematic diagram between two electrodes of existing sense electronics wet absorption articles.
Specific embodiment
The explanation of following embodiment be with reference to attached drawing, can be to the particular implementation implemented to example the utility model
Example.The direction and position term that the utility model is previously mentioned, for example, "upper", "lower", "front", "rear", "left", "right", "inner", "
Outside ", " top ", " bottom ", " side " etc. are only direction or position with reference to attached drawing.Therefore, the direction used and position term
It is rather than the limitation to scope of protection of the utility model to illustrate and understand the utility model.
The utility model will be further described with reference to the accompanying drawing.It please refers to shown in Fig. 1, this is the utility model reality
A kind of the schematic diagram of the section structure of sense electronics wet absorption articles of example is applied, sense electronics wet absorption articles 10 include: in figure
Successively the flexible water film 11 of lamination, absorbed layer 15 and permeable braid layer 18 from bottom to up, the absorbed layer
15 for absorbing the liquid entered from permeable braid layer 18；
It is set at least one the first flexible electricals of the flexible water film 11 on the surface of the absorbed layer 15
Pole 321；
The flexible water film 11 is set to towards on the surface of the absorbed layer 15, and it is thin to be located at the flexible water
At least one the second flexible electrodes 322 between film 11 and the absorbed layer 15；
It the flexible water film 11, first flexible electrode 321, second flexible electrode 322 and is contained in
Liquid 19 in the absorbed layer 15 constitutes a nonpolarity variable electrolytic capacitor, wherein first flexible electrode 321,
Two electrodes of second flexible electrode 322 as the nonpolarity variable electrolytic capacitor, 11 conduct of flexible water film
The dielectric of the nonpolarity variable electrolytic capacitor, liquid 19 in the absorbed layer 15 as it is described it is nonpolarity can transformation electrolytic
The liquid electrolyte of capacitor would know that the electricity by the detection of the capacitance to the nonpolarity variable electrolytic capacitor
The dampness of son sense wet absorption articles 10.
In the present embodiment, the first flexible electrode 321 and the second flexible electrode 322 are respectively set at flexible water film 11
On different surfaces (lower surface and upper surface shown in FIG. 1), the second flexible electrode 322 can be directly and included in absorbed layer 15
Electrolytic liquid 19 be in contact.Since electrolyte has good electric conductivity, entire electrolytic liquid 19 can be enabled to be in and second
322 equipotential state (when ignoring relevant internal resistance) of flexible electrode, to enable the entire liquid being covered on flexible water film 11
The case where face is equivalent to a liquid electrode 323, this and conventional electrolysis capacitor with electrolytic liquid are practical cathode extremely phase
Seemingly.Specifically, the liquid electrode 323 of the utility model embodiment extends the coverage area of the second flexible electrode 322, and works as
When the liquid electrode 323 covers 11 surface of flexible water film (i.e. upper surface) of 321 right opposite of the first flexible electrode, just
A corresponding electrolytic capacitor is produced, it is right that capacitance and the liquid electrode 323 of the electrolytic capacitor cover the first flexible electrode 321
11 surface area of flexible water film answered is directly proportional, i other words liquid electrode 323 it is corresponding with the first flexible electrode 321/covering
Area it is bigger, the capacitance of the electrolytic capacitor is bigger.
In practical applications, the outer surface of absorbent item 10, i.e. flexible water film 11 backwards to absorbed layer 15 this one side,
It is also covered with layer of non-woven fabric 13, which can enhance the intensity of flexible water film 11, improve the present embodiment sense electronics
The touch feeling of wet absorption articles 10, and the first flexible electrode 321 can be protected, therefore this non-woven fabrics is also referred to as flexible protective
Layer.In absorbed layer 15, the absorbing materials such as wood pulp, cotton pulp 16 or hydroscopic high-molecular resin (SAP) 17 etc. are also typically included,
Absorbed layer 15 may include one of them or any combination.The present embodiment sense electronics wet absorption articles 10 specifically can be paper urine
The disposable absorbent articles such as trousers, nappy, paper urine pad, sanitary napkin, the first flexible electrode 321 and the second flexible electrode 322 are to adopt
With carbon electrically conductive ink the above-mentioned sense electronics wet absorption articles of flexible water film 11(counterdie) on print made of urinate wet sense
Answer line.
Below referring to figure 2. shown in, this is that capacitor between two electrodes of the utility model embodiment and electricresistance effect show
It is intended to.Capacitance in figure between visible first, second flexible electrode 321,322 is equal to the first flexible electrode 321 and equivalent liquid
Capacitance Ca between body electrode 323, and it is unrelated with the size and location of the second flexible electrode 322, as long as itself and electrolyte solution
Body 19 is in contact and just goes.
Further, since the first flexible electrode 321 and the second flexible electrode 322 are respectively at flexible water film 11
On different surfaces, moist hand and skin can not touch the electrode of described two different surfaces simultaneously, this can effectively avoid mistake
Electric leakage is generated between two electrodes, prevents the generation of alarm condition.In fact, since flexible water film 11 is waterproof insulation,
Even if its two sides is all drenched by liquid, two electrodes 321,322 are still separated by flexible water film 11, the leakage between two electrodes
Resistance Rd is in high impedance status always, will not have an impact to work, therefore in the utility model embodiment, and Rd can be neglected
Slightly disregard.
Below referring again to shown in Fig. 3, this is to implement capacitor to sense electronics wet absorption articles in the utility model embodiment
The structural schematic diagram of detection.It include a capacitance detecting device 20 in order to monitor the moisture conditions of absorbent item 10, in Fig. 3,
The capacitance detecting device 20 is connected with the first flexible electrode 321 of sense electronics wet absorption articles 10, the second flexible electrode 322
Connect, the capacitance due to aforementioned nonpolarity variable electrolytic capacitor with include content liquid in absorbed layer 15 and be distributed with
It closes, therefore by the capacitance variation situation between two electrode of real-time monitoring, it can be achieved that the humidity of sense electronics wet absorption articles 10
Degree monitoring.
It is shown referring to figure 4. below, for a signal of the relationship of the moist area and capacitor of the utility model embodiment
Figure.The first flexible electrode 321 that 11 outer layer of flexible water film is arranged in figure is represented by dashed line；It is arranged in fexible film 11
Second flexible electrode 322 of layer is indicated by the solid line；19 be include electrolytic liquid (such as urine) in absorbed layer 15.321'
For the corresponding liquid area (dash area) of the first flexible electrode 321, it is assumed that area 10, the capacitance generated are 10X
(capacitance that X is unit area)；322 ' area (the shadow parts contacted for the second flexible electrode 322 with electrolytic liquid 19
Point).Since second flexible electrode 322 of the utility model embodiment is directly in contact with electrolytic liquid 19, one can be formed
Equipotential liquid electrode 323, regardless of the second flexible electrode 322 is how many with 19 contact area of electrolytic liquid, effect is all
It is the same (when ignoring electrolyte solution bulk resistor).According to the capacitor calculation method of the utility model embodiment (two electrodes it
Between electrolytic capacitor value C be equal to capacitor Ca between the first flexible electrode 321 and liquid electrode 323), have C=Ca=10X.
Therefrom it can be found that the electrolytic capacitor of the utility model embodiment is mainly in the position of the first flexible electrode 321
Upper generation, therefore in practical applications, the first flexible electrode 321 can be arranged in the centre of sense electronics wet absorption articles 10
Part, as long as detecting the dampness detection that can be realized to sense electronics wet absorption articles to the capacitor of middle section.Extremely
In the second flexible electrode 322, as long as it has any portion to contact with the liquid 19 of absorbed layer 15, regardless of contact area is big
Small, effect is essentially all the same, because its liquid electrode formed is the same.This characteristic is greatly reduced to
The requirement of two flexible electrodes 322, compared with similar other products, the utility model embodiment not only has higher detection sensitive
Degree, and, reliability that the flexibility and product that increase product design use relatively low to the requirement used.
Further, by electrode design appropriate and configuration, the utility model embodiment also has adaptive humidity
And degree of saturation monitoring function.Shown referring to figure 5. below, this is the flexible by first, second of the utility model embodiment
Electrode section overlapping, realizes the product design schematic diagram of adaptive humidity and degree of saturation monitoring function.Due to first in figure
Flexible electrode 321 flexible water film 11 another side (outer layer), so being represented in figure with dotted line.Also, first, second
The left and right as being shown aforementioned legend is not completely separable for flexible electrode, but has part overlapping (projection weight in position
It is folded) together, wherein lap indicates (dash area) with 325.Specifically, the second flexible electrode 322 is being arranged
There is the orthographic projection on 11 surface of flexible water film of the first flexible electrode 321, partly overlaps with the formation of the first flexible electrode 321.
Assuming that the width of the first flexible electrode 321 is equal with the width of the second flexible electrode 322, and the first, second flexible electrode
321,322 width is 3, and the width of lap 325 is 1, then it be 1Y(Y is electrode unit that lap, which can produce numerical value,
Capacitance caused by width) initial capacitance value, be in but regardless of sense electronics wet absorption articles 10 and dry and comfortable be in humidity
State.
When absorbed layer 15 is in full wet condition, electrolytic liquid 19 becomes one and the first flexible electrode 321 is completely covered
Liquid electrode 323, i.e. two electrode laps become width 3 from original width 1, in this way in the first, second flexible electrical
The capacitance detected between pole 321,322 just becomes 3Y from 1Y, i other words 1Y is the capacitance of dry condition, 3Y is complete wet
The capacitance of state, the numerical value between 1Y-3Y just represent the humidity of the utility model embodiment sense electronics wet absorption articles 10
Degree, numerical value is bigger, and moist degree is more serious.In practical applications, the lap 325 of the first, second flexible electrode
Width is preferably the first, second flexible electrode width 1/5th to half, enables the capacitance of full wet condition dryer and comfortableer
The capacitance of state (original state) has one to four times of growth.Maximum capacitor can be used as by two times of initial capacitance value to five times
Value, with the corresponding maximum moist degree of the maximum capacitor value.
In practical applications, the first, second flexible electrode 321,322 is usually using electrically conductive ink through gravure printing technique
It is printed on flexible water film 11.Since the first, second flexible electrode 321,322 is in the difference of flexible water film 11
On surface, it is difficult to be accurately positioned the width of control lap 325 in process of production, this will cause the mistake of initial capacitance value
Difference, to cause the error of moist degree detecting.In order to solve this problem, another method can be used to control overlapping
Width, referring in particular to shown in Fig. 6, this is that the first, second flexible electrode of the utility model embodiment 321,322 is completely overlapped, and
Realize the product design schematic diagram of adaptive humidity and degree of saturation monitoring function.
The first, second flexible electrode 321,322 is there is no being left and right settings as aforementioned other legends in figure, but
It overlaps on longitudinal axis, i.e., the second flexible electrode 322 is in the flexible water film for being provided with the first flexible electrode 321
The orthographic projection on 11 surfaces is located within the first flexible electrode 321；And it is flexible that the width of the first flexible electrode 321 is greater than second
Electrode 322, so as to which the second flexible electrode 322 is completely covered on the width, accordingly even when the first, second flexible electrode 321,
There is error in 322 printing positions, if the second flexible electrode 322 still within the width coverage area of the first flexible electrode 321,
The width and area of lap can remain unchanged.Assuming that the width of the second flexible electrode 322 is 1, the first flexible electrode 321
Width be 3, then in the initial state the capacitance (when dry and comfortable) be equal to 1Y(Y be electrode unit width caused by capacitor
Value).And when absorbed layer 15 is in full wet condition, electrolytic liquid 19 generates electrolytic liquid electrode 323 and just covers entirely
First flexible electrode 321, the capacitance detected between the first, second flexible electrode 321,322 at this time is just 3Y, is
Say that 1Y is dry condition, 3Y is full wet condition, and the numerical value between 1Y-3Y just represents the utility model embodiment electronics
Feel the moist degree of wet absorption articles 10, numerical value is bigger, and moist degree is more serious.
Adaptive humidity and degree of saturation monitoring may be implemented in the characteristics of this design, but regardless of flexible water film 11
Thickness, dielectric constant and sense electronics wet absorption articles 10 length.Fig. 7 is please referred to, this is the utility model embodiment one kind
The moist degree schematic diagram of sense electronics wet absorption articles.As a kind of concrete application, sense electronics wet absorption articles 10 can be paper
Urine pants, the electrolytic liquid 19 in absorbed layer 15 are urine.Since the second flexible electrode 322 can directly be contacted with urine 19,
It enables urine 19 be converted into the wider array of liquid electrode 323 of covering surface, expands the coverage area of the second flexible electrode 322.
The first flexible electrode 321(dotted line range represents the range of electrode in figure) it is printed on 11 outer layer of flexible water film
(backwards to absorbed layer 15), width are assumed to be 3 times of the second flexible electrode.When anuria is wet to be happened, first, second is flexible
Capacitance between electrode 321,322 is about that 1Y(Y is capacitance caused by electrode unit width).When absorbed layer 15 is complete wet
When, capacitance is about 3Y.Numerical value between 1Y-3Y just represents the utility model embodiment sense electronics wet absorption articles 10
Moist degree.It can be known by the detection to the capacitance and urinate wet degree.In practical applications, the first flexible electrode
321 be preferably 2-5 times of 322 width of the second flexible electrode.Meanwhile it can be by two times of initial capacitance value to five times as maximum electricity
Capacitance, with the corresponding maximum moist degree of the maximum capacitor value.
It is please referred to shown in Fig. 8 below, this is first, second flexible electrode of the utility model embodiment by electrolyte solution
Capacitor and electricresistance effect schematic diagram after body (such as urine) is drenched.323 be 11 internal layer of flexible water film (towards absorption in figure
Layer 15) on 322 absorbed layer 15 of the second flexible electrode in electrolytic liquid 19 it is drenched after the first equivalent liquid electricity for being formed
Pole, 324 be the first flexible electrode 321 on 11 outer layer of flexible water film (backwards to absorbed layer 15) by flexible cover sheet 13
Electrolytic liquid 193 is that the electrolytic liquid 19 in the absorbed layer 15 of absorbent item leaks into electronics to electrolytic liquid 193(herein
Caused by the outer layer for feeling wet absorption articles 10, or because moist hand touches the outer layer of sense electronics wet absorption articles 10 and stays
Under) it is drenched after the second equivalent liquid electrode for being formed.Due to there is the flexible water film 11 as insulation dielectric in figure
Barrier, enabling still remains high impedance status between the first, second equivalent liquid electrode 323,324, this high impedance status
Influence of the Rd to capacitor Ca is negligible.Capacitor Ca is generated between the first, second equivalent liquid electrode 323 and 324, and can
By the connection of the first, second flexible electrode 321,322 and effectively detection.Since Ca value is larger, and not by the first, second equivalent electricity
Ohmic leakage Rd between pole 323,324 influences, therefore can more effectively improve the sensitivity and reliability of system detection.
Due to the utility model embodiment system the first, second flexible electrode 321,322 not on same surface, no
With worrying that two electrodes urinate wet short circuit by urine again, or the case where false alarm, is occurred by moist hand or skin short circuit, therefore
The flexible cover sheet 13 being covered on flexible water film 11 can be removed in practical applications, electronics can be further decreased in this way
The production cost of sense wet absorption articles 10 enables consumer receive benefits to can effectively reduce the price of product.
It should be noted that existing some sense electronics wet absorption articles, are arranged in the same face of flexible water film
The mode of two compliant conductive electrodes, although being also able to achieve above-mentioned similar quantization urinates wet detection function, in practical applications,
Above-mentioned prior art there are many shortcomings, including:
Detection sensitivity is relatively low: please referring to shown in Fig. 9, this is between two electrodes of existing sense electronics wet absorption articles
Capacitor and electricresistance effect schematic diagram.It is arranged between the flexible electrode 121 and 122 of 11 the same face of flexible water film in figure
Capacitance is connected in series by Ca and Cb, and any one numerical value of capacitance ratio Ca and Cb will be low after series connection.Capacitance is got over
Low, detection sensitivity is also lower, and detection effect and the scope of application can all decrease.If Ca(can directly be detected as originally
Utility model embodiment) numerical value, it will the sensitivity of effective lifting system detection.
Be easy to be disturbed: 19 is in absorbed layers 15 in figure, and in 11 another side of flexible water film and electrode
121,122 corresponding electrolytic liquid.This structure can be with other than producing Ca, Cb, between two electrodes 121,122
A dielectric capacitance Cc is generated by flexible water film 11, and is formed by the air between two electrodes 121,122 another
A dielectric capacitance Cd.Due to flexible water film 11 be it is very soft, in absorbent item (such as paper diaper) use process, two
The distance between electrode 121,122 can change in response to different situations such as the dress of user, sleep, turn, walkings.If Cc
With the parallel value of Cd, substantial effect can will be brought to the reliability of system detection with Ca compared with Cb series value；
If system accidentally to touch two electrodes 121,122 together, but will be enabled the situation of short circuit occur, and this situation exists
Be not in the utility model embodiment.
Generate false alarm: in aforementioned prior art, since two flexible electrodes 121,122 are thin in flexible water
The same face of film 11 is easy between two electrodes to be generated ohmic leakage Rd by moisture effect, can interfere to capacitance detecting.It generates
There are many factor of ohmic leakage, such as moist surface, or moist hand/skin contact is to two strip electrodes etc..Have the manpower of sweat gas/
The contact resistance of skin is usually differed from tens kilo-ohms to several hundred kilo-ohms, this resistance is enough to enable the electrode in capacitance detecting circuit short
False alarm is caused on road.Even if covering a protective layer 13(on flexible water film 11 is usually non-woven fabrics) it can not prevent completely
Only such case occurs because non-woven fabrics be it is non-water-tight, the hand of dampness or humidity touches non-woven fabrics and also will affect
There is false alarm situation in the reliability of detection.
Can not self-adapting detecting absorbent article humidity and degree of saturation: although the electricity that aforementioned prior art detects
Capacitance is also directly proportional to the moist degree of sense electronics wet absorption articles, but which numerical value represents complete wet or saturation, in addition to
It is also related with the length of sense electronics wet absorption articles except related with material, thickness and the dielectric constant of flexible water film 11.
Flexible water film 11 is thinner, and dielectric constant is bigger, and sense electronics wet absorption articles are longer, and the capacitance between two electrodes is got over
Greatly.User, which needs the sense electronics wet absorption articles to each specifications and models and brand to be configured, can just know accurate tide
Wet and degree of saturation instruction, this can bring some inconvenience in use.And the case where the utility model embodiment, will be complete
Difference, as long as it, which monitors the rate of change of capacitance of absorbent item in use, can know its moist and degree of saturation, with
The parameters such as the length of the thickness of absorbent item waterproofing membrane, dielectric constant and absorbent item are unrelated.
By above description it is found that the beneficial effect of the utility model embodiment is, by being used in sense electronics wet absorption
The first flexible electrode and the second flexible electrode is respectively set in the flexible water film two sides of product, and enables the first, second flexible electrode
It overlaps and generates the initial capacitance value of a precognition, and become the basis for urinating wet degree judgement；Second flexible electrode
It can directly be contacted with the absorbed layer of absorbent item；Above-mentioned flexible water film, the first, second flexible electrode and it is contained in absorption
Liquid in layer forms the variable electrolytic capacitor with electrolytic liquid electrode, only need to can be changed electrolytic capacitor to this
Capacitance and its variation are detected, and can know the dampness of sense electronics wet absorption articles；Detection sensitivity can not only be made
It is effectively promoted, can more greatly enhance anti-interference ability, and can prevent moist hand or skin from touching electrode and causing short circuit
And there is the case where false alarm, additionally can self-adapting detecting absorbent article humidity and degree of saturation.
Above disclosures are merely preferred embodiments of the utility model, the utility model cannot be limited with this certainly
Interest field, therefore equivalent variations made according to the claim of the utility model still fall within the scope of the utility model.
Claims (10)
1. a kind of sense electronics wet absorption articles characterized by comprising
Successively the flexible water film of lamination, absorbed layer and permeable braid layer from bottom to up, the absorbed layer for absorb from
The liquid that permeable braid layer enters；
It is set at least one the first flexible electrodes of the flexible water film on the surface of the absorbed layer；
The flexible water film is set to towards on the surface of the absorbed layer, and be located at the flexible water film with it is described
At least one the second flexible electrodes between absorbed layer；
It the flexible water film, first flexible electrode, second flexible electrode and is contained in the absorbed layer
Liquid constitute a nonpolarity variable electrolytic capacitor, wherein first flexible electrode, the second flexible electrode be used as described in
Two electrodes of nonpolarity variable electrolytic capacitor, the flexible water film is as the nonpolarity variable electrolytic capacitor
Dielectric, liquid electrolyte of the liquid as the nonpolarity variable electrolytic capacitor in the absorbed layer, by described
The dampness of the sense electronics wet absorption articles is known in the detection of the capacitance of nonpolarity variable electrolytic capacitor.
2. sense electronics wet absorption articles as described in claim 1, which is characterized in that second flexible electrode is being arranged
The orthographic projection for stating the flexible water film surface of the first flexible electrode partly overlaps with first flexible electrode formation.
3. sense electronics wet absorption articles as claimed in claim 2, which is characterized in that the width of first flexible electrode and
The width of two flexible electrodes is equal, and the width of the overlapping region is that first flexible electrode or the second flexible electrode are wide
/ 5th of degree are to half.
4. sense electronics wet absorption articles as described in claim 1, which is characterized in that the width of first flexible electrode is greater than
The width of second flexible electrode, second flexible electrode is in the flexible water film for being provided with first flexible electrode
The orthographic projection on surface is located within first flexible electrode.
5. sense electronics wet absorption articles as claimed in claim 4, which is characterized in that the width of first flexible electrode is institute
2-5 times for stating the second flexible electrode width.
6. sense electronics wet absorption articles as described in claim 1, which is characterized in that the flexible water film is backwards to the suction
That receives layer is also covered with flexible cover sheet on one side.
7. sense electronics wet absorption articles as claimed in claim 6, which is characterized in that the flexible cover sheet is non-woven fabrics.
8. sense electronics wet absorption articles as described in claim 1, which is characterized in that the absorbed layer includes for absorbing liquid
Wood pulp, cotton pulp, any one of hydroscopic high-molecular resin or any combination.
9. sense electronics wet absorption articles as described in claim 1, which is characterized in that first flexible electrode and described second
Flexible electrode is the wet line of induction of urine made of carbon electrically conductive ink prints on the flexible water film.
10. such as the described in any item sense electronics wet absorption articles of claim 1-9, which is characterized in that the sense electronics wet absorption
Articles are any one of paper diaper, nappy, paper urine pad and sanitary napkin.
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| CN112315667A (en) * | 2019-11-04 | 2021-02-05 | 深圳一代科技有限公司 | Disposable absorbent article absorption state monitoring sensor and related product and method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112315667A (en) * | 2019-11-04 | 2021-02-05 | 深圳一代科技有限公司 | Disposable absorbent article absorption state monitoring sensor and related product and method |
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