CN110934374A - Self-driven step counting shoes - Google Patents
Self-driven step counting shoes Download PDFInfo
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- CN110934374A CN110934374A CN201811113488.3A CN201811113488A CN110934374A CN 110934374 A CN110934374 A CN 110934374A CN 201811113488 A CN201811113488 A CN 201811113488A CN 110934374 A CN110934374 A CN 110934374A
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- pedometer
- self
- friction
- electrode layer
- shoes
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- A—HUMAN NECESSITIES
- A43—FOOTWEAR
- A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
- A43B3/00—Footwear characterised by the shape or the use
- A43B3/34—Footwear characterised by the shape or the use with electrical or electronic arrangements
- A43B3/38—Footwear characterised by the shape or the use with electrical or electronic arrangements with power sources
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02N—ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
- H02N1/00—Electrostatic generators or motors using a solid moving electrostatic charge carrier
- H02N1/04—Friction generators
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- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
Abstract
The utility model provides a self-driven meter step shoes, includes the shoes body and sets up the pedometer on the surface of the shoes body, its characterized in that, this self-driven meter step shoes still includes: a friction nano generator (TENG) disposed in the shoe body for converting mechanical energy of human motion into electrical energy; and the energy management module is used for managing the electric energy generated by the friction nano generator and supplying power to the pedometer. The invention realizes the step counting shoes which do not need batteries and are completely powered by human activities, does not depend on external batteries and other power supplies, and has simple structure, convenience, practicability, environmental protection.
Description
Technical Field
The invention relates to the field of electronic products and the technical field of friction power generation, in particular to a self-driven step counting shoe.
Background
Along with the development of science and technology, intelligent wearing equipment emerges in a large number, and different crowds have different demands to wearing equipment. Taking fitness running population as an example, people want to monitor their own exercise data: step number, running mileage, calories consumed and the like, and most of intelligent devices such as mobile phones or bracelets and the like on the market currently develop application software for monitoring exercise data. Although these devices can perform the function of monitoring exercise data, they are inconvenient to carry about during exercise and even easy to forget. Therefore, various step counting shoes are applied, however, the sensors for collecting data of the existing step counting shoes are powered by batteries, but the batteries have the problems of limited service life, need of regular replacement, environmental pollution and the like. When a human body moves, a large amount of mechanical energy can be dissipated, and if the energy is utilized, the self-energy supply of the pedometer can be realized. Therefore, it is necessary to develop a pair of step-counting shoes which can be completely powered by human activities without batteries, so as to overcome many disadvantages caused by the conventional power supply method.
Disclosure of Invention
In view of the above problems, it is an object of the present invention to provide a self-propelled pedometer that is completely powered by human activity without batteries. The invention provides a self-driven step-counting shoe, which comprises a shoe body and a step counter arranged on the surface of the shoe body, and is characterized in that the self-driven step-counting shoe further comprises:
the friction nano generator is arranged in the shoe body and is used for converting mechanical energy of human body movement into electric energy; and
and the energy management module is used for managing the electric energy generated by the friction nano generator and supplying power to the pedometer.
In some embodiments, the triboelectric nanogenerator is disposed within a midsole of the shoe body.
In some embodiments, the energy management module is disposed within a midsole of the shoe body or within the pedometer.
In some embodiments, the energy management module comprises a rectifier bridge, a dc voltage reduction circuit, and an autonomously controllable switch that closes and opens; the input end of the rectifier bridge is connected with the friction nano generator, and the output end of the rectifier bridge is connected with the direct-current voltage reduction circuit through the switch.
In some embodiments, the dc voltage dropping circuit includes a diode, a capacitor, and an inductor, an anode and a cathode of the diode are respectively connected to the negative output terminal and the positive output terminal of the rectifier bridge, an anode of the diode is connected to one end of the capacitor, and a cathode of the diode is connected to the other end of the capacitor through the inductor.
In some embodiments, the pedometer has an operating power of no greater than 2 mW.
In some embodiments, the triboelectric nanogenerator is a multilayer contact split triboelectric nanogenerator fabricated from flexible thin film materials.
In some embodiments, the triboelectric nanogenerator comprises a first electrode layer, a friction layer, and a second electrode layer, wherein the first electrode layer and the friction layer are attached together, the friction layer is disposed between the first electrode layer and the second electrode layer, and the friction layer and the second electrode layer are disposed to be able to contact and separate.
Based on the technical scheme, the invention at least obtains the following beneficial effects:
the invention realizes the step counting shoes which do not need batteries and are completely powered by human activities, skillfully utilizes the mechanical energy of human body during motion, does not depend on external batteries and other power supplies, and has simple structure, convenience, practicability, environmental protection and the like.
Drawings
FIG. 1 is a schematic view of a self-propelled pedometer shoe according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of the self-propelled pedometer shoe of FIG. 1;
FIG. 3 is a schematic diagram of the operation of the friction nanogenerator of FIG. 1;
FIG. 4 is a circuit diagram of the energy management module of FIG. 1;
FIG. 5 shows the output voltage U of FIG. 40A graph of time;
fig. 6 is a view showing the operation state of the self-propelled step counter shoe according to the embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the described embodiments of the invention without any inventive step, are within the scope of protection of the invention.
Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention belongs.
Fig. 1 is a schematic view of a self-driven pedometer shoe according to an embodiment of the present invention, as shown in fig. 1, including a shoe body 100, a friction nano-generator (TENG)200, an energy management module 300, and a pedometer 400. Wherein, the pedometer 400 is arranged on the surface of the shoe body 100; the friction nano generator 200 is arranged in the shoe body 100 and is used for converting mechanical energy of human motion into electric energy; the energy management module 300 is used to manage the electric energy generated by the friction nano-generator 200 and to supply power to the pedometer 400.
Preferably, the friction nano-generator 200 is disposed in the interlayer of the sole of the shoe body 100, and performs contact and separation movement during human body activity, thereby converting mechanical energy of human body activity into electric energy. The energy management module 300 may be disposed in the midsole of the shoe body 100, for example, the energy management module 300 may be integrated with the friction nano-generator 200 while being embedded in the midsole. The energy management module 300 can also be arranged in the pedometer 400, at this time, the pedometer 400 is embedded in the side of the shoe body 100, the energy management module 300 is embedded in the pedometer 400, and the friction nanometer generator 200 supplies energy to the energy management module 300 and the integrated device of the pedometer 400. The circuit connecting lines are all arranged in the sole or the interlayer on the side surface, so that the wearing is not affected. The display screen of the pedometer 400 can well display the exercise information parameters such as the number of steps, the exercise mileage, the calories consumed, and the like.
According to some embodiments, the energy management module 300 has a maximum energy transfer, dc down-conversion and self-management mechanism, and can provide a stable dc output.
The self-driven pedometer shoe in the embodiment of the invention converts mechanical energy of human body movement into electric energy required by the work of the pedometer 400 through the friction nano generator 200, and has the advantages of simple circuit, no need of external batteries and environmental protection. Meanwhile, the energy management module 300 in this embodiment can maximize the release of the energy collected by the friction nano-generator 200 and provide a stable energy output source.
With further reference to fig. 2, the working principle of the self-driven step-counting shoe in the embodiment of the invention is as follows: the friction nano generator (TENG)200 collects mechanical energy of human body movement to generate electric energy, and provides the electric energy to the pedometer 400 for operation through the processing of the energy management module 300, so as to record movement data of human body movement, such as step number, mileage, calories burned, and the like.
In the embodiment of the invention, the conventional ordinary pedometer can be adopted as the pedometer 400, and in order to ensure that the whole self-driven step-counting shoe system works stably, the working power of the pedometer 400 is preferably not higher than 2mW, so that the inconvenience in wearing caused by excessive layers of the friction nano generator 200 can be avoided. More preferably, the working voltage of the pedometer 400 is 1.2-3V, the working current is 8-10 muA, and the working power is 10-30 muW.
The friction nano generator 200 can be in any mode and any structural form theoretically, the friction nano generator 200 in the embodiment of the invention is made of a flexible thin film material, is a multilayer contact separation type friction nano generator, and converts human body mechanical energy into electric energy when a human body moves.
With further reference to fig. 3, the friction nanogenerator 200 according to the embodiment of the invention includes a first electrode layer 31, a friction layer 32, and a second electrode layer 33, wherein the first electrode layer 31 and the friction layer 32 are attached together, and the friction layer 32 is disposed between the first electrode layer 31 and the second electrode layer 33; in an initial state, a gap exists between the friction layer 32 and the second electrode layer 33, and the friction layer 32 and the second electrode layer 33 can be contacted and separated by an external force to form a current in an external circuit.
The operation principle of the friction nano-generator 200 is as shown in fig. 3, and in an initial state, a predetermined gap exists between the friction layer 32 and the second electrode layer 33; the friction layer 32 and the second electrode layer 33 are brought into contact with each other by an external force. When the two are completely contacted, the external magnetic field is constant and the direction is perpendicular to the paper surface, and due to the principle of triboelectrification, the second electrode layer 33 and the friction layer 32 will carry the same amount of charges and opposite charges. In the process of starting the separation of the second electrode layer 33, the first electrode layer 31 generates static charge due to the principle of electrostatic induction, and the generation of the static charge changes the capacitance between the first electrode layer 31 and the second electrode layer 33, thereby generating a potential difference. Due to the potential difference, free electrons will flow from the side with the lower potential to the side with the higher potential through the external circuit, thereby creating a current in the external circuit. When the separation is maximized, the system reaches an electrostatic equilibrium state, in which no current flows in the external circuit, and when the second electrode layer 33 approaches the friction layer 32, electrons in the second electrode layer 33 are transferred to the first electrode layer 31 in the external circuit. By repeated contact separation, a periodic alternating current signal can be formed in the external circuit.
The friction nano-generator 200 generates alternating current, has the characteristics of high voltage and low current, and is not suitable for directly supplying power to the pedometer 400. Therefore, the present invention provides the energy management module 300, which has the characteristics of maximizing energy transmission, dc voltage reduction conversion and self-management mechanism, can reduce the voltage of the friction nano-generator 200 into dc, and output energy to the maximum extent, and can provide energy for the stable operation of the pedometer 400.
According to some embodiments, with further reference to fig. 4, the energy management module 300 may include a rectifier bridge, a dc voltage reduction circuit, and an autonomously controllable close and open switch; the input end of the rectifier bridge is connected with the friction nano-generator 200, namely TENG, and the output end of the rectifier bridge is connected with the direct-current voltage reduction circuit through a switch.
The DC step-down circuit comprises a diode D1Capacitor C, inductor L and diode D1The anode and the cathode of the diode are respectively connected with the cathode output end and the anode output end of the rectifier bridge, and the diode D1Is connected to one end of a capacitor C, a diode D1Is connected to the other end of the capacitor C via an inductor L. R represents a back-end load, such as pedometer 400; u shape0The voltage output to the load R for the energy manager.
With further reference to FIG. 5, at t1In a time period, the switch is closed, and the electric energy is stored in the LC unit in the direct current voltage reduction circuit; at t2In a period of time, turn onThe switch is off and power is discharged from the LC cell. As can be seen from fig. 5, after the alternating current generated by the friction nano-generator 200 is processed by the energy management module 300, a stable direct current output is achieved.
In this embodiment, the pedometer 400 can be started to work after 5-7 steps when the human body walks or joggs. After the pedometer 400 works, the user can continuously display the exercise data for more than 20 seconds when the human body is still in place and no mechanical energy is input, so that the requirement of observation after the exercise data is monitored by the user is met. The output power of the friction nano-generator 200 is related to the manufacturing process and the human motion form, and can be properly adjusted according to the power of the pedometer 400, so that the friction nano-generator 200 with high output can be manufactured at best without influencing wearing in order to adapt to different motion forms of different people. The friction nano generator 200 can be stacked in multiple layers, the output capacity is correspondingly improved, and the friction nano generator 200 is made of a flexible film, so that the weight of the step counting shoe is not greatly influenced. The collected electric energy of the friction nano-generator 200 can be externally connected with pedometers 400 with various powers through energy management, and the requirements of different people of different ages on the recording of the motion data can be met.
Referring to fig. 6, a working state diagram of the self-propelled step-counting shoe according to the embodiment of the present invention is shown. As can be known from the data in the figure, the work time of the pedometer display is continuously more than 20s after the human body wearing the self-driven pedometer shoes stops doing sports every day in the test time of 10 days. During this test, the self-propelled pedometer did not decay significantly in length of time, indicating the stability of the self-propelled pedometer.
In summary, the invention provides a self-driven step-counting shoe, which can convert human body mechanical energy into electric energy, and after the electric energy is subjected to direct current voltage reduction and self-management by an energy management module, the electric energy is supplied to a step counter to work, and exercise data such as step number, mileage, calorie consumption and the like of human body activities are recorded. The self-driven step-counting shoes do not need batteries and are completely powered by human bodies. The invention has the advantages of simple circuit, no need of external batteries, environmental protection, novel and reasonable design, simple structure, light and easily obtained used materials, low price, convenient operation and strong practicability.
The above-mentioned embodiments are intended to illustrate the objects, technical solutions and advantages of the present invention in further detail, and it should be understood that the above-mentioned embodiments are only exemplary embodiments of the present invention and are not intended to limit the present invention, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. The utility model provides a self-driven pedometer shoes, includes the shoes body with set up in the pedometer on the surface of the shoes body, its characterized in that, self-driven pedometer shoes still include:
the friction nano generator is arranged in the shoe body and is used for converting mechanical energy of human body movement into electric energy; and
and the energy management module is used for managing the electric energy generated by the friction nano generator and supplying power to the pedometer.
2. The self-propelled pedometer of claim 1,
the friction nano generator is arranged in the sole interlayer of the shoe body.
3. Self-propelled pedometer according to claim 1 or 2,
the energy management module is arranged in a sole interlayer of the shoe body or in the pedometer.
4. The self-driven pedometer according to claim 1 or 2, wherein the energy management module comprises a rectifier bridge, a direct current voltage reduction circuit and a switch capable of being automatically controlled to be turned on and off, wherein the input end of the rectifier bridge is connected with the friction nano-generator, and the output end of the rectifier bridge is connected with the direct current voltage reduction circuit through the switch.
5. The self-driven step-counting shoe as claimed in claim 4, wherein the DC voltage-reducing circuit comprises a diode, a capacitor and an inductor, wherein the anode and the cathode of the diode are respectively connected with the negative output end and the positive output end of the rectifier bridge, the anode of the diode is connected with one end of the capacitor, and the cathode of the diode is connected with the other end of the capacitor through the inductor.
6. Self-propelled pedometer according to claim 1 or 2, wherein the pedometer has an operating power of no more than 2 mW.
7. The self-propelled pedometer of claim 1 or 2, wherein the triboelectric nanogenerator is a multilayer contact split triboelectric nanogenerator fabricated from a flexible thin film material.
8. The self-propelled pedometer of claim 7, wherein the triboelectric nanogenerator comprises a first electrode layer, a friction layer, and a second electrode layer, wherein the first electrode layer and the friction layer are attached together, the friction layer is disposed between the first electrode layer and the second electrode layer, and the friction layer and the second electrode layer are disposed to be able to contact and separate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811113488.3A CN110934374A (en) | 2018-09-25 | 2018-09-25 | Self-driven step counting shoes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811113488.3A CN110934374A (en) | 2018-09-25 | 2018-09-25 | Self-driven step counting shoes |
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| CN110934374A true CN110934374A (en) | 2020-03-31 |
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| CN201811113488.3A Pending CN110934374A (en) | 2018-09-25 | 2018-09-25 | Self-driven step counting shoes |
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| CN203191558U (en) * | 2013-03-27 | 2013-09-11 | 纳米新能源（唐山）有限责任公司 | Self-power positioning shoe |
| CN103859678A (en) * | 2012-12-14 | 2014-06-18 | 纳米新能源（唐山）有限责任公司 | Light emitting shoe |
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| CN205051595U (en) * | 2015-10-27 | 2016-02-24 | 北京贞正物联网技术有限公司 | Be used for nanogenerator energy collecting device that rubs |
| CN205757471U (en) * | 2016-05-13 | 2016-12-07 | 纳智源科技（唐山）有限责任公司 | Self-driven meter step Luminous shoe |
| US20170346416A1 (en) * | 2014-12-15 | 2017-11-30 | Koninklijke Philips N.V. | A triboelectric power generator system and method |
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2018
- 2018-09-25 CN CN201811113488.3A patent/CN110934374A/en active Pending
Patent Citations (6)
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|---|---|---|---|---|
| CN103859678A (en) * | 2012-12-14 | 2014-06-18 | 纳米新能源（唐山）有限责任公司 | Light emitting shoe |
| CN203191558U (en) * | 2013-03-27 | 2013-09-11 | 纳米新能源（唐山）有限责任公司 | Self-power positioning shoe |
| CN203709361U (en) * | 2013-11-22 | 2014-07-16 | 纳米新能源（唐山）有限责任公司 | Wireless self-powered step counting shoe and step counting system |
| US20170346416A1 (en) * | 2014-12-15 | 2017-11-30 | Koninklijke Philips N.V. | A triboelectric power generator system and method |
| CN205051595U (en) * | 2015-10-27 | 2016-02-24 | 北京贞正物联网技术有限公司 | Be used for nanogenerator energy collecting device that rubs |
| CN205757471U (en) * | 2016-05-13 | 2016-12-07 | 纳智源科技（唐山）有限责任公司 | Self-driven meter step Luminous shoe |
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Address after: No.8, yangyandong 1st Road, Yanqi Economic Development Zone, Huairou District, Beijing Applicant after: Beijing Institute of Nanoenergy and Nanosystems Address before: 100083, C building, Tiangong building, No. 30, Haidian District, Beijing, Xueyuan Road Applicant before: Beijing Institute of Nanoenergy and Nanosystems |