CN205493850U - Developments plantar pressure sensing device based on piezoelectric membrane - Google Patents
Developments plantar pressure sensing device based on piezoelectric membrane Download PDFInfo
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- CN205493850U CN205493850U CN201620031915.3U CN201620031915U CN205493850U CN 205493850 U CN205493850 U CN 205493850U CN 201620031915 U CN201620031915 U CN 201620031915U CN 205493850 U CN205493850 U CN 205493850U
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- protective layer
- pressure sensor
- device based
- sensor device
- plantar pressure
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Abstract
The utility model provides a developments plantar pressure sensing device based on piezoelectric membrane, belongs to wearing formula plantar pressure test technical field, relates to a developments plantar pressure sensing device based on piezoelectric membrane. The utility model discloses have unique pyroelectric effect and piezo electric effect, the signal is easily discerned, the cost of manufacture is low, process easily and processing, light in weight, flexible good. The utility model discloses a first layer protective layer, second floor protective layer, double faced adhesive tape, polyester film, sensing unit, PET ( poly(ethylene terephthalate) ) membrane and output are provided with a plurality of sensing unit between first layer protective layer and second floor protective layer, every sensing unit is made by PVDF ( polyvinylidene fluoride ) film and the silver coating layer of setting on the upper and lower surface of PVDF ( polyvinylidene fluoride ) film.
Description
Technical field
This utility model belongs to Wearable sole pressure test technical field, relates to a kind of dynamic plantar pressure sensor device based on piezoelectric membrane.
Background technology
It is known that wearable device is likened in the industry industry growth point new after smart mobile phone and panel computer.Compare representational intelligence wearing product the most on the market and have Intelligent bracelet, intelligent watch and intelligent glasses.These wearable devices use the upper part of the body at human body, and in order to improve the range of Intelligent worn device, intelligent shoe is effective supplementing.Simultaneously, Wearable sole pressure test technology is the Novel medical monitoring technology developed rapidly in recent years, its spatial dimension breaching conventional medical institutions monitoring, diagnosing limits, the daily monitoring to Human Sole dynamic pressure can be conveniently realized, can be that human foot health care, athletic posture rectification and science shoemaking provide foundation.
The sensor that traditional dynamic plantar pressure acquisition is used has the types such as resistance-type, condenser type and piezoelectric type.The resistance signal of resistance sensor output should be converted to voltage signal, and amplified could use, and the parameter coupling requirement to data acquisition equipment is higher；Capacitance type sensor method for designing difficulty is relatively big, and capacitance signal is demarcated and circuit is the most complex；Piezoelectric transducer, due to output is voltage signal, and it is relatively easy in circuit design and signals collecting, thus piezoelectric transducer application is relatively broad.
Utility model content
In order to overcome above-mentioned the deficiencies in the prior art, this utility model provides a kind of dynamic plantar pressure sensor device based on piezoelectric membrane, this sensing device has pyroelectric effect and the piezoelectric effect of uniqueness, and signal is easy to identify, cost of manufacture is low, be easily worked and process, lightweight, flexible.
nullTo achieve these goals，This utility model be the technical scheme is that a kind of dynamic plantar pressure sensor device based on piezoelectric membrane,Including ground floor protective layer、Second layer protective layer、Double faced adhesive tape、Mylar、Sensing unit、PET(polyethylene terephthalate) film and outfan，Described ground floor protective layer、Second layer protective layer、Double faced adhesive tape and mylar set gradually from top to bottom，And it is insole shape，Several sensing units it are provided with between ground floor protective layer and second layer protective layer，Each sensing unit is by PVDF(Kynoar) thin film and be arranged on PVDF(Kynoar) thin film upper、The silver coating of lower surface is made，Each sensing unit is all connected with outfan by silver coating，PET(polyethylene terephthalate) film is local strengthening film，It is arranged at the lower surface of second layer protective layer、Corresponding with outfan.
Described outfan is divided into two kinds, and one is plug-in outfan, and another kind is riveted type outfan.
The quantity of described sensing unit is eight, and wherein five are arranged on the position corresponding with sole, and one is arranged on the position corresponding with arch of the foot, and two are arranged on the position corresponding with heel.
First, second layer of described protective layer and the thickness of mylar are 2mm.
Described PET(polyethylene terephthalate) thickness of film is 500 μm.
The thickness of described sensing unit is 28 μm or 50 μm.
The material of first, second layer of described protective layer is PET(polyethylene terephthalate).
Described pressure sensor device is integrated in shoe pad, or is integrated in the top of sole, becomes a part for footwear.
Described sole is made up of silicone rubber, is provided with several equally distributed projections at the top of sole, and projection is two kinds of different hardness, and the projection of two kinds of different hardness is staggered.
The beneficial effects of the utility model:
This utility model can be widely applied in Wearable sole pressure test product, the spatial dimension breaching conventional medical institutions monitoring, diagnosing limits, the daily monitoring to dynamic human body plantar pressure can be conveniently realized, can be that human foot health care, athletic posture rectification and science shoemaking provide effective theoretical foundation.
Accompanying drawing explanation
Fig. 1 is the structural representation of dynamic plantar pressure sensor device based on piezoelectric membrane of the present utility model；
Fig. 2 is the partial sectional view of dynamic plantar pressure sensor device based on piezoelectric membrane of the present utility model；
Fig. 3 is the structural representation of plug-in outfan of the present utility model；
Fig. 4 is the structural representation of riveted type outfan of the present utility model；
Fig. 5 is the structural representation that dynamic plantar pressure sensor device based on piezoelectric membrane of the present utility model is integrated in shoe pad；
Fig. 6 is the dynamic plantar pressure sensor device based on the piezoelectric membrane of the present utility model fundamental diagram by longitudinal force；
Fig. 7 is the structural representation that dynamic plantar pressure sensor device based on piezoelectric membrane of the present utility model is integrated in sole；
Fig. 8 is the dynamic plantar pressure sensor device based on the piezoelectric membrane of the present utility model fundamental diagram by cross force；
In figure, 1 ground floor protective layer, 2 first silver coatings; 3 PVDF(Kynoar) thin film; 4 second silver coatings, 5 second layer protective layers, 6 double faced adhesive tapes; 7 mylars; 8 PET(polyethylene terephthalate) film, 9 outfans, 10 dynamic plantar pressure sensor devices based on piezoelectric membrane; 11 shoe pads, 12 soles.
Detailed description of the invention
With specific embodiment, this utility model is described in further detail below in conjunction with the accompanying drawings.
As shown in Fig. 1 ~ Fig. 2, a kind of dynamic plantar pressure sensor device based on piezoelectric membrane, including ground floor protective layer 1, sensing unit, second layer protective layer 5, double faced adhesive tape 6, mylar 7, PET(polyethylene terephthalate) film 8 and outfan 9, described ground floor protective layer 1, second layer protective layer 5, double faced adhesive tape 6 and mylar 7 set gradually from top to bottom, and it is insole shape, eight sensing units it are provided with between ground floor protective layer 1 and second layer protective layer 5, wherein five sensing units are arranged on the position corresponding with sole, one sensing unit is arranged on the position corresponding with arch of the foot, two sensing units are arranged on the position corresponding with heel, and (quantity and the arrangement mode of sensing unit are not limited only to this, can be adjusted according to the increase of information gathering amount)；Each sensing unit is by PVDF(Kynoar) thin film 3 and first, second silver coating is made, PVDF(Kynoar) thin film 3 is circular, first silver coating 2 is arranged on PVDF(Kynoar) upper surface of thin film 3, second silver coating 4 is arranged on PVDF(Kynoar) lower surface of thin film 3, the piezoelectric signal of each sensing unit is all by first, second silver coating conducts, first, second silver coating extends to outfan 9, the most each sensing unit is all by first, second silver coating is connected with outfan 9, during use, outfan 9 is derived at heel；PET(polyethylene terephthalate) film 8 is local strengthening film, the lower surface being arranged at second layer protective layer 5 is corresponding with outfan 9.
First, second layer of described protective layer and the thickness of mylar 7 are 2 mm.
Described PET(polyethylene terephthalate) thickness of film 8 is 500 μm.
The thickness of described sensing unit is 28 μm or 50 μm.
The material of first, second layer of described protective layer is PET(polyethylene terephthalate).
As it is shown on figure 3, described outfan 9 is plug-in outfan, the plug-in outfan described in during use is connected with rear circuit board: outfan 9 is inserted directly into the female connector of rear circuit board.
As shown in Figure 4, described outfan 9 is riveted type outfan, and the riveted type outfan described in during use is connected with rear circuit board: the electrode of sensor aligns with the through hole electrode of rear circuit board, and is directly riveted by special riveting part.
As shown in Figure 5, described pressure sensor device is integrated in shoe pad 11, main by longitudinal force, its operation principle is as shown in Figure 6: the deformation direction (thickness direction) of described pressure sensor device is parallel with pressure sensor device internal electric field direction, the action direction of applied external force F and PVDF(Kynoar under this pattern) polarised direction P of thin film 3 is parallel, i.e. PVDF(Kynoar) thin film 3 only generation dilatation under longitudinal force effect, and at PVDF(Kynoar) excite charge Q on two pole-faces of thin film 3, now PVDF(Kynoar) on thin film 3, voltage V is produced between lower pole face；T, L, W in Fig. 5 represents PVDF(Kynoar respectively) thickness direction of thin film 3, length direction and width.
As shown in Figure 7, described pressure sensor device is integrated in the top of sole 12, become a part for footwear, described sole 12 is made up of silicone rubber, it is provided with several equally distributed cylindrical protrusions at the top of sole 12, is used for supporting pressure sensor device, so that described pressure sensor device deforms in the horizontal direction, projection is two kinds of different hardness, and the projection of two kinds of different hardness is staggered；When human body is stood or is walked, sole applies vertical force to sole 12, owing to sole and described pressure sensor device are all flexible, and sole 12 described pressure sensor device with raised support, this can make the recess stretcher strain between sole 12 projection of the described pressure sensor device, in order to makes piezoelectric transducer produce voltage signal；
Described pressure sensor device integrates with sole 12, by longitudinal force and cross force, by longitudinal force operation principle as shown in Figure 6, by cross force operation principle as shown in Figure 8: the deformation direction (length direction) of described pressure sensor device is vertical with pressure sensor device internal electric field direction, when there being applied external force F(extruding force under this pattern) along PVDF(Kynoar) polarised direction of thin film 3 acts on PVDF(Kynoar) and on thin film 3 time, PVDF(Kynoar) thin film 3 produces transversely deforming, and excite charge Q on two pole-face, now PVDF(Kynoar) on thin film 3, voltage V is i.e. produced between lower pole face；T, L, W in Fig. 6 represents PVDF(Kynoar respectively) thickness direction of thin film 3, length direction and width.
The specific works process of the present embodiment is described below in conjunction with the accompanying drawings.
As shown in Fig. 1 ~ Fig. 8, dynamic plantar pressure sensor device 10 based on piezoelectric membrane of the present utility model is the sensitiveest to dynamic test, people is when walking or running, the bottom moment of footwear subjects the applied external force of change, applied external force of these changes promote by PVDF(Kynoar) thin film 3 is at thickness direction and is perpendicular to thickness direction and is deformed, polarization phenomena can be produced inside it, positive and negative contrary electric charge can be produced on its two relative surfaces simultaneously, deflection determines PVDF(Kynoar) thin film 3 surface charge amount is how many, after applied external force is removed, it can return to again uncharged state, i.e. by PVDF(Kynoar) change in voltage that causes of thin film 3 deformation；Then people's walking or the change in voltage during running are filtered, collected, the process such as amplification is converted into pressure signal, it is achieved thereby that the collection of dynamic pressure distribution, in order to obtain its walking habits (varus, turn up), foot bones developmental state, whether be flat foot, whether be the relevant informations such as morbid state foot.
Claims (9)
1. a dynamic plantar pressure sensor device based on piezoelectric membrane, it is characterized in that, including ground floor protective layer, second layer protective layer, double faced adhesive tape, mylar, sensing unit, PET film and outfan, described ground floor protective layer, second layer protective layer, double faced adhesive tape and mylar set gradually from top to bottom, and it is insole shape, several sensing units it are provided with between ground floor protective layer and second layer protective layer, each sensing unit is by PVDF thin film and is arranged on the upper of PVDF thin film, the silver coating of lower surface is made, each sensing unit is all connected with outfan by silver coating, PET film is local strengthening film, it is arranged at the lower surface of second layer protective layer, corresponding with outfan.
Dynamic plantar pressure sensor device based on piezoelectric membrane the most according to claim 1, it is characterised in that the outfan of several described sensing units is divided into two kinds, one is plug-in outfan, and another kind is riveted type outfan.
Dynamic plantar pressure sensor device based on piezoelectric membrane the most according to claim 1, the quantity that it is characterized in that described sensing unit is eight, wherein five are arranged on the position corresponding with sole, and one is arranged on the position corresponding with arch of the foot, and two are arranged on the position corresponding with heel.
Dynamic plantar pressure sensor device based on piezoelectric membrane the most according to claim 1, it is characterised in that first, second layer of described protective layer and the thickness of mylar are 2mm.
Dynamic plantar pressure sensor device based on piezoelectric membrane the most according to claim 1, it is characterised in that the thickness of described PET film is 500 μm.
Dynamic plantar pressure sensor device based on piezoelectric membrane the most according to claim 1, it is characterised in that the thickness of described sensing unit is 28 μm or 50 μm.
Dynamic plantar pressure sensor device based on piezoelectric membrane the most according to claim 1, it is characterised in that the material of first, second layer of described protective layer is PET.
Dynamic plantar pressure sensor device based on piezoelectric membrane the most according to claim 1, it is characterised in that described pressure sensor device can be integrated in shoe pad, or it is integrated in the top of sole, become a part for footwear.
Dynamic plantar pressure sensor device based on piezoelectric membrane the most according to claim 8, it is characterized in that described sole is made up of silicone rubber, be provided with several equally distributed projections at the top of sole, projection is two kinds of different hardness, and the projection of two kinds of different hardness is staggered.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620031915.3U CN205493850U (en) | 2016-01-13 | 2016-01-13 | Developments plantar pressure sensing device based on piezoelectric membrane |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620031915.3U CN205493850U (en) | 2016-01-13 | 2016-01-13 | Developments plantar pressure sensing device based on piezoelectric membrane |
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| CN205493850U true CN205493850U (en) | 2016-08-24 |
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| CN201620031915.3U Expired - Fee Related CN205493850U (en) | 2016-01-13 | 2016-01-13 | Developments plantar pressure sensing device based on piezoelectric membrane |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106805954A (en) * | 2017-02-28 | 2017-06-09 | 华中科技大学 | A kind of Wearable pliable pressure sensor and preparation method thereof |
| CN108697338A (en) * | 2018-05-31 | 2018-10-23 | 深圳和而泰数据资源与云技术有限公司 | A kind of Sleeping band and thin film switch |
| CN109100059A (en) * | 2018-08-02 | 2018-12-28 | 贵州大学 | A kind of pliable pressure sensor for diabetic's sole pressure test |
| CN109602423A (en) * | 2019-02-01 | 2019-04-12 | 清华大学深圳研究生院 | It is a kind of for preventing the wearable device of diabetes |
| CN110680328A (en) * | 2019-10-22 | 2020-01-14 | 北京航空航天大学 | Plantar stress detection system, device, server, method and storage medium |
| CN112398365A (en) * | 2020-11-11 | 2021-02-23 | 长春大学 | Rotational distortion power generation floor based on PVDF piezoelectric material |
-
2016
- 2016-01-13 CN CN201620031915.3U patent/CN205493850U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106805954A (en) * | 2017-02-28 | 2017-06-09 | 华中科技大学 | A kind of Wearable pliable pressure sensor and preparation method thereof |
| CN106805954B (en) * | 2017-02-28 | 2020-02-14 | 华中科技大学 | Wearable flexible pressure sensor and preparation method thereof |
| CN108697338A (en) * | 2018-05-31 | 2018-10-23 | 深圳和而泰数据资源与云技术有限公司 | A kind of Sleeping band and thin film switch |
| CN109100059A (en) * | 2018-08-02 | 2018-12-28 | 贵州大学 | A kind of pliable pressure sensor for diabetic's sole pressure test |
| CN109602423A (en) * | 2019-02-01 | 2019-04-12 | 清华大学深圳研究生院 | It is a kind of for preventing the wearable device of diabetes |
| CN109602423B (en) * | 2019-02-01 | 2023-11-03 | 清华大学深圳研究生院 | Wearable device for preventing diabetic foot |
| CN110680328A (en) * | 2019-10-22 | 2020-01-14 | 北京航空航天大学 | Plantar stress detection system, device, server, method and storage medium |
| CN112398365A (en) * | 2020-11-11 | 2021-02-23 | 长春大学 | Rotational distortion power generation floor based on PVDF piezoelectric material |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160824 Termination date: 20210113 |
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| CF01 | Termination of patent right due to non-payment of annual fee |