CN107070162B - self-powered helmet - Google Patents
self-powered helmet Download PDFInfo
- Publication number
- CN107070162B CN107070162B CN201710263473.4A CN201710263473A CN107070162B CN 107070162 B CN107070162 B CN 107070162B CN 201710263473 A CN201710263473 A CN 201710263473A CN 107070162 B CN107070162 B CN 107070162B
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- China
- Prior art keywords
- power generation
- permanent magnet
- helmet
- self
- powered
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 238000010248 power generation Methods 0.000 claims abstract description 54
- 238000006243 chemical reaction Methods 0.000 claims abstract description 28
- 238000004146 energy storage Methods 0.000 claims abstract description 17
- 239000010409 thin film Substances 0.000 description 9
- 230000006870 function Effects 0.000 description 8
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000005286 illumination Methods 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000036760 body temperature Effects 0.000 description 1
- 229910052793 cadmium Inorganic materials 0.000 description 1
- BDOSMKKIYDKNTQ-UHFFFAOYSA-N cadmium atom Chemical compound [Cd] BDOSMKKIYDKNTQ-UHFFFAOYSA-N 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000010408 film Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000005339 levitation Methods 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000009993 protective function Effects 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 229910052714 tellurium Inorganic materials 0.000 description 1
- PORWMNRCUJJQNO-UHFFFAOYSA-N tellurium atom Chemical compound [Te] PORWMNRCUJJQNO-UHFFFAOYSA-N 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K35/00—Generators with reciprocating, oscillating or vibrating coil system, magnet, armature or other part of the magnetic circuit
- H02K35/02—Generators with reciprocating, oscillating or vibrating coil system, magnet, armature or other part of the magnetic circuit with moving magnets and stationary coil systems
-
- A—HUMAN NECESSITIES
- A42—HEADWEAR
- A42B—HATS; HEAD COVERINGS
- A42B3/00—Helmets; Helmet covers ; Other protective head coverings
- A42B3/04—Parts, details or accessories of helmets
- A42B3/0406—Accessories for helmets
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention relates to the technical field of energy collection. The invention discloses a self-powered helmet, which improves the power generation efficiency by improving a vibration power generation device. The self-powered helmet comprises a helmet body, a vibration power generation device, a current conversion device and an energy storage device, wherein the current conversion device is connected with the current output by the vibration power generation device, the current conversion device is connected with the energy storage device, the vibration power generation device comprises a first permanent magnet, a second permanent magnet and a coil, the first permanent magnet is suspended above the second permanent magnet, and the coil is connected with the current conversion device. The invention improves the power generation efficiency of the self-powered helmet and can meet the use requirement under the normal walking condition. The wearer can move by himself without power supply to generate electric energy for other functional parts of the helmet. The invention is very suitable for labor protection products such as safety helmets and the like.
Description
Technical Field
The invention relates to the technical field of energy collection, in particular to a vibration energy, wind energy and solar energy collection and storage technology in the nature, and particularly relates to a self-powered helmet.
Background
The self-powered system is a novel functional device which does not need an external power supply and collects energy from the environment to realize energy self-supply, and has attractive application prospects in the fields of large-scale environmental monitoring, human health monitoring, military reconnaissance, biomedical treatment, safety protection and the like.
In the self-powered system, the friction nano generator has great attention due to the advantages of low cost, wide application scene and the like, and in many application scenes, the running frequency of a person is moderate (4.5-5.5 Hz), the friction nano generator can be used for collecting energy by using the traditional electromagnetic generator, the walking frequency is low (1.8-2.2 Hz), and the energy is difficult to collect by using the traditional electromagnetic generator.
Helmets, as a kind of wearing equipment, generally have some auxiliary functions, such as a function for dark ambient lighting, a function for ambient dangerous gas detection, a function for wearer position location (GPS), etc., in addition to a certain protective function. These functional parts or sensors on the helmets consume a certain amount of electric energy, so that various helmets with self-powered functions are developed. Prior art self-powered helmets typically include a vibration power generation device, a current conversion device, an energy storage device, and the like mounted on the helmet body. In the vibration power generation device in the prior art, vibration energy is converted into current by utilizing the traditional electromagnetic power generation or piezoelectric effect, and the current is rectified and stabilized by the current conversion device and then is input into the energy storage device for storage, so that electric energy is provided for the sensor and the control system. The vibration power generation device in the prior art has low power generation efficiency, particularly can not convert vibration energy generated by normal walking into electric energy with high efficiency, and is greatly limited in application.
Disclosure of Invention
The invention mainly aims to provide a self-powered helmet, which improves the power generation efficiency by improving a vibration power generation device.
In order to achieve the above object, according to one aspect of the specific embodiment of the present invention, there is provided a self-powered helmet, including a helmet body, a vibration power generation device, a current conversion device and an energy storage device, wherein the current output from the vibration power generation device is connected to the current conversion device, and the current conversion device is connected to the energy storage device, wherein the vibration power generation device includes a first permanent magnet installed in a column structure, a second permanent magnet, and a coil, the first permanent magnet is suspended above the second permanent magnet, and the coil is connected to the current conversion device.
According to the technical scheme, the sensitivity of the vibration power generation device to vibration energy is improved by utilizing the magnetic levitation technology, low-frequency vibration of normal walking can be effectively sensed, and the power generation efficiency is greatly improved.
Further, the coil is arranged above and/or below the first permanent magnet and/or around the columnar structure.
The coils are arranged above and/or below the first permanent magnet and/or around the column-shaped structure, such as the top of the column-shaped structure, the top of the second permanent magnet or the positions corresponding to the first permanent magnet, such as winding around the column-shaped structure, so that the number of the coils can be increased, and the power generation efficiency can be improved. Particularly, the coils above and below the first permanent magnet induce a large current when the first permanent magnet moves, and the power generation efficiency can be improved by increasing the number of turns.
Further, the column structure is a closed structure, the upper end and the lower end of the first permanent magnet are provided with first friction plates, the top of the column structure and the top of the second permanent magnet are provided with buffer pads and second friction plates, and the first friction plates and the second friction plates are connected with the current conversion device and output current through friction.
According to the technical scheme, the friction power generation function is increased, the vibration of the permanent magnet is fully utilized, and the energy conversion efficiency is further improved through friction power generation.
Further, the first permanent magnet is in vacuum.
According to the scheme, the first permanent magnet is placed in vacuum, so that the resistance can be reduced, the sensitivity can be increased, and the conversion efficiency can be improved.
Further, the columnar structure is cylindrical or regular quadrangular.
The column structure adopts a cylindrical shape or a regular quadrangular shape, and has the characteristics of simple structure and convenient processing.
Further, 4 vibration power generation devices are arranged on the left side and the right side of the front of the helmet body and on the left side and the right side of the rear of the helmet body respectively.
The vibration power generation device is configured, so that the generated energy can be increased, the vibration power generation device is respectively arranged at the left side and the right side in front of the helmet body and the left side and the right side behind the helmet body, the positions of the lighting device and the sensor cannot be occupied, and the layout of other devices is facilitated.
Further, the helmet also comprises 2 wind energy generators, wherein the wind energy generators are respectively arranged at the left side and the right side of the helmet body, and the wind energy generators are connected with the current conversion device.
According to the scheme, 2 wind energy generators are arranged at the gaps on the left side and the right side of the helmet body, so that wind energy utilization is further increased, and energy collection efficiency is improved.
Further, the helmet further comprises a solar power generation thin film battery, wherein the solar power generation thin film battery is connected with the current conversion device, and the solar power generation thin film battery is arranged at the top of the helmet body.
The solar power generation thin film battery is added, the limited surface area of the helmet can be fully utilized, and the utilization rate of environmental energy is increased.
Further, the system also comprises a sensor and a control system, wherein the sensor and the control system are connected with the energy storage device, and the sensor is connected with the control system.
The scheme integrates various sensors and control systems on the helmet, further increases the functions of the helmet, and enables the helmet to be a self-powered safety helmet.
Specifically, the sensor comprises a position sensor, a temperature sensor, a heart rate sensor and a gas sensor.
The self-powered helmet has the beneficial effects of improving the power generation efficiency of the self-powered helmet and meeting the use requirement under the normal walking condition. The wearer can move by himself without power supply to generate electric energy for other functional parts of the helmet.
The invention is further described below with reference to the drawings and detailed description. Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention. In the drawings:
fig. 1 is a schematic view of the structure of a helmet according to an embodiment.
Fig. 2 is a bottom view of fig. 1.
Fig. 3 is a schematic structural diagram of a vibration power generation device according to an embodiment.
Wherein: 1 is a helmet body; 10 is a vibration power generation device; 11 is a first permanent magnet; 12 is a second permanent magnet; 13 is a coil; 14 is a first friction plate; 15 is a second friction plate; 16 is a cushion pad; 20 is a wind driven generator; 30 is a solar film; 40 is a sensor and control system; 100 is a columnar structure.
Detailed Description
It should be noted that, without conflict, the specific embodiments, examples, and features thereof in the present application may be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings in conjunction with the following.
In order that those skilled in the art will better understand the present invention, a detailed description of the present invention and a complete description of the technical solutions thereof will be provided below with reference to the accompanying drawings in the form a part of the present invention, and not all of the examples. All other embodiments, examples, and implementations of what is known to those of ordinary skill in the art as being without undue burden are intended to be within the scope of the present invention.
It should be noted that, the wind-driven generator mentioned in the present application is a mature generating device, and is generally composed of a micro wind wheel and a micro generator, and the wind wheel rotates to drive the generator to rotate for generating electricity. The solar thin film battery mentioned in the present application is also a commonly used solar power generation device, and is generally made of materials such as silicon, tellurium, cadmium, and the like, and can generate current output under sunlight irradiation.
Examples
As shown in fig. 1 and 2, the self-powered helmet of the present embodiment is a helmet with relatively perfect functions, and includes a helmet body 1, 4 vibration power generation devices 10, 2 wind power generators 20, a solar power generation thin film battery 30, and an auxiliary functional unit formed by a sensor and a control system 40. The sensors include a position sensor, a temperature sensor, a heart rate sensor and a gas sensor, which work by using electric energy generated by various power generation devices arranged on the helmet, and the acquired data are transmitted to a control system for processing. The control system also utilizes the electric energy output by the energy storage device to work, can judge the surrounding environment according to the data acquired by the sensor, can also be connected with the outside when needed, outputs the position coordinates, the body temperature, the heart rate data and the like of the wearer, and can also provide illumination for the wearer through the illumination device of the control system.
The current output by the vibration power generation device 10, the wind power generator 20 and the solar power generation thin film battery 30 on the helmet is processed by the current conversion device and converted into proper direct current to be input into the energy storage device for storage. The vibration power generation device 10 and the wind power generator 20 output alternating current, and it is necessary to perform AC-DC conversion (AC-DC conversion), output stable direct current voltage through DC-DC conversion (DC-DC conversion), and input the stable direct current voltage into an energy storage device (typically, a lithium battery or a super capacitor) for energy storage. As can be seen from fig. 1 and 2, in this example 4, vibration power generation devices 10 are respectively disposed on the left and right sides of the front and the left and right sides of the rear of the helmet body 1, and 2 wind power generators 20 are respectively disposed on the left and right sides of the helmet body 1 (ear positions of the wearer), and solar power generation thin film batteries 40 are disposed on the top of the helmet body 1 and are most likely to receive sunlight.
Referring to fig. 3, the vibration power generation device of the present example is constituted by a first permanent magnet 11, a second permanent magnet 12, and a coil 13 mounted in a cylindrical structure 100. The coil 13 of this example is disposed on top of the columnar structure 100 and on top of the second permanent magnet 12 and around the columnar structure 100, and the columnar structure 100 is a closed structure, so that the first permanent magnet 11 is in vacuum. Since the first permanent magnet 11 and the second permanent magnet 12 have the same polarity, the first permanent magnet 11 floats above the second permanent magnet 12 under the repulsive force. The installation position of the coil 13 corresponds to the position of the first permanent magnet, and when the first permanent magnet 11 moves under the action of external vibration, the coil 13 generates current due to cutting magnetic force lines, and the current is input into the energy storage device for storage after being subjected to AC-DC conversion by the current conversion device. In this example 4 vibration power generation devices 10 are vertically installed on the left and right sides in front of the helmet body 1 and on the left and right sides in rear of the helmet body, and when the helmet is worn, the 4 vibration power generation devices 10 are also kept in a substantially vertical state, so that vibration energy can be fully utilized to generate power.
The vibration power generation device with the suspension structure is very sensitive to external vibration, and can generate considerable current output even though the vibration is low-frequency vibration during normal walking. Along with the increase of the number of the vibration power generation devices and the matching of the wind power generation devices and the auxiliary power generation devices such as the solar thin film battery, the electric energy generated by the helmet can charge the energy storage device, and the working current is provided for the low-power consumption sensor and the control system. In order to further improve the collection and utilization of vibration energy, the first friction plate 14 is further arranged at the upper end and the lower end of the first permanent magnet, the buffer pad 16 and the second friction plate 15 are respectively arranged at the top of the column structure of the closed structure and the top of the second permanent magnet, the two pairs of friction plates output current through friction, and the energy storage device is charged after being converted by the current conversion device, so that the collection and utilization of vibration energy is further improved. The vibration power generation device can also adopt prismatic structures, such as regular quadrangular prisms and the like, and can achieve the same technical effect.
Claims (6)
1. The self-powered helmet comprises a helmet body, a vibration power generation device, a current conversion device and an energy storage device, wherein the current conversion device is connected with the current output by the vibration power generation device, and the current conversion device is connected with the energy storage device;
the vibration power generation device comprises a first permanent magnet, a second permanent magnet and a coil, wherein the first permanent magnet is arranged in a column structure, the first permanent magnet is suspended above the second permanent magnet, and the coil is connected with the current conversion device;
the column structure is a closed structure, the upper end and the lower end of the first permanent magnet are provided with first friction plates, the tops of the column structure and the tops of the second permanent magnet are provided with buffer pads and second friction plates, and the first friction plates and the second friction plates are connected with the current conversion device and output current through friction;
the vibration power generation device is provided with 4 vibration power generation devices which are respectively arranged at the left and right sides in front of the helmet body and at the left and right sides behind the helmet body.
2. The self-powered helmet of claim 1, wherein the coil is disposed above and/or below the first permanent magnet and/or around the post structure.
3. The self-powered helmet of claim 1, wherein the first permanent magnet is in a vacuum.
4. The self-powered helmet of claim 1, wherein the columnar structure is cylindrical or right quadrangular.
5. The self-powered helmet of claim 1, further comprising a sensor and control system, the sensor and control system coupled to the energy storage device, the sensor coupled to the control system.
6. The self-powered helmet of claim 5, wherein the sensor comprises a position sensor, a temperature sensor, a heart rate sensor, a gas sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710263473.4A CN107070162B (en) | 2017-04-20 | 2017-04-20 | self-powered helmet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710263473.4A CN107070162B (en) | 2017-04-20 | 2017-04-20 | self-powered helmet |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107070162A CN107070162A (en) | 2017-08-18 |
| CN107070162B true CN107070162B (en) | 2024-01-16 |
Family
ID=59601152
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710263473.4A Active CN107070162B (en) | 2017-04-20 | 2017-04-20 | self-powered helmet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107070162B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110823408B (en) * | 2019-09-26 | 2020-08-18 | 西安交通大学 | Pressure type thermometer based on friction nano generator and temperature measuring method thereof |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2213653C2 (en) * | 2000-10-24 | 2003-10-10 | Казаков Владимир Михайлович | Method for restoring worn surfaces of cylinders, tubes by applying coating and apparatus for performing the same |
| CN102013777A (en) * | 2010-11-19 | 2011-04-13 | 黄伟敏 | Variable speed synchronous generator |
| CN103414309A (en) * | 2013-08-02 | 2013-11-27 | 南京邮电大学 | Portable type generating set |
| WO2014027695A1 (en) * | 2012-08-16 | 2014-02-20 | 株式会社アクション・リサーチ | Vibration processing device and method |
| CN104100453A (en) * | 2013-04-12 | 2014-10-15 | 罗才德 | Wind energy and solar energy generator |
| JP2015006650A (en) * | 2013-06-26 | 2015-01-15 | 須知 晃一 | Method of manufacturing composite bodies of system configuration structure cell and component material |
| CN204652198U (en) * | 2015-05-14 | 2015-09-16 | 浙江工业大学 | A kind of energy gathering apparatus |
| JP3206065U (en) * | 2016-05-02 | 2016-09-01 | 墫野 和夫 | High-power hexagonal piezoelectric element-coupled generator circuit to create the world's largest bank of agricultural, fishery and forestry SMEs on the corporate assets that have continued since the Communist Party era. Type coilless light rail motor system device. |
| CN106532886A (en) * | 2016-11-17 | 2017-03-22 | 上海交通大学 | Diamagnetic levitation bistable vibration energy catcher |
| CN206698092U (en) * | 2017-04-20 | 2017-12-01 | 西南交通大学 | The self energizing helmet |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8157757B2 (en) * | 2010-03-08 | 2012-04-17 | Sastry K Ganti | Special bed to self induce body traction |
| US9874340B2 (en) * | 2014-01-07 | 2018-01-23 | Tseng-Lu Chien | LED light has electric coil-means and magnetic-means |
-
2017
- 2017-04-20 CN CN201710263473.4A patent/CN107070162B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2213653C2 (en) * | 2000-10-24 | 2003-10-10 | Казаков Владимир Михайлович | Method for restoring worn surfaces of cylinders, tubes by applying coating and apparatus for performing the same |
| CN102013777A (en) * | 2010-11-19 | 2011-04-13 | 黄伟敏 | Variable speed synchronous generator |
| WO2014027695A1 (en) * | 2012-08-16 | 2014-02-20 | 株式会社アクション・リサーチ | Vibration processing device and method |
| CN104100453A (en) * | 2013-04-12 | 2014-10-15 | 罗才德 | Wind energy and solar energy generator |
| JP2015006650A (en) * | 2013-06-26 | 2015-01-15 | 須知 晃一 | Method of manufacturing composite bodies of system configuration structure cell and component material |
| CN103414309A (en) * | 2013-08-02 | 2013-11-27 | 南京邮电大学 | Portable type generating set |
| CN204652198U (en) * | 2015-05-14 | 2015-09-16 | 浙江工业大学 | A kind of energy gathering apparatus |
| JP3206065U (en) * | 2016-05-02 | 2016-09-01 | 墫野 和夫 | High-power hexagonal piezoelectric element-coupled generator circuit to create the world's largest bank of agricultural, fishery and forestry SMEs on the corporate assets that have continued since the Communist Party era. Type coilless light rail motor system device. |
| CN106532886A (en) * | 2016-11-17 | 2017-03-22 | 上海交通大学 | Diamagnetic levitation bistable vibration energy catcher |
| CN206698092U (en) * | 2017-04-20 | 2017-12-01 | 西南交通大学 | The self energizing helmet |
Also Published As
| Publication number | Publication date |
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| CN107070162A (en) | 2017-08-18 |
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Effective date of registration: 20221116 Address after: No. 19, Qianwang East Road, Deyuan Town (Jingrong Town), Pidu District, Chengdu, Sichuan 611700 Applicant after: SICHUAN YISHANG TIANJIAO INDUSTRIAL CO.,LTD. Address before: 610031 No. 111, North Section of Second Ring Road, Chengdu City, Sichuan Province Applicant before: SOUTHWEST JIAOTONG University |
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