CN207442719U - Energy capture sensor, vibration generating device and vehicle-mounted detecting system - Google Patents
Energy capture sensor, vibration generating device and vehicle-mounted detecting system Download PDFInfo
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- CN207442719U CN207442719U CN201721610441.9U CN201721610441U CN207442719U CN 207442719 U CN207442719 U CN 207442719U CN 201721610441 U CN201721610441 U CN 201721610441U CN 207442719 U CN207442719 U CN 207442719U
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Abstract
The utility model discloses a kind of energy capture sensor, vibration generating device and vehicle-mounted detecting systems, the energy capture sensor includes cantilever beam, the cantilever beam includes matrix, piezoelectric element and mass block, described matrix is for vortex shape and with fixing end and free end, the piezoelectric element is set on the matrix, and the mass block is arranged on the free end of described matrix.The energy capture sensor of the utility model, cantilever beam are vortex shape, add the length of cantilever beam, reduce eigentone, add energy conversion efficiency, and reduce the demand to installation space, improve applicability.
Description
Technical field
The utility model is related to technical field of automotive electronics, more particularly to energy capture sensor, there is the energy to catch
Obtain the vibration generating device of sensor and the vehicle-mounted detecting system with the vibration generating device.
Background technology
Intelligent automobile makes trip more convenient and comfortable, is concerned by people more and more.Intelligent automobile is general
Be open to traffic a upper increase sensor, such as gas sensor, pressure sensor, temperature sensor and humidity sensor, has vehicle
The environment sensing ability of standby intelligence automatically analyzes safety, tire pressure, in-car air quality and humiture of vehicle traveling etc..In order to
External environmental information is gathered, above-mentioned intelligence sensor needs external power supply to provide it electric energy.
In correlation technique, the vibrational energy that generates in vibration generating device acquisition vehicle traveling process, and by vibrational energy
Electric energy is converted into as the intelligence sensor power supply in automobile.To reduce the resonant frequency of vibration generating device, to match actual machine
The frequency of tool vibration, provides energy conversion efficiency, and vibration generating device usually requires to extend the length of cantilever beam.However, cantilever
The installation space of beam is limited, it is impossible to which indefinite extension cantilever beam can not be suitable for the occasion of limited space.
Utility model content
For this purpose, the one side of the utility model proposes a kind of energy capture sensor, the cantilever of the energy capture sensor
Beam is vortex shape, adds the length of cantilever beam, reduces eigentone, adds energy conversion efficiency.
On the other hand the utility model also proposed a kind of vibration generating device.
The utility model another further aspect also proposed a kind of vehicle-mounted detecting system.
Cantilever beam, the cantilever beam bag are included according to the energy capture sensor of the embodiment of the utility model first aspect
It includes：Matrix, described matrix is for vortex shape and with fixing end and free end；Piezoelectric element, the piezoelectric element are located at the base
On body；Mass block, the mass block are arranged on the free end of described matrix.
According to the energy capture sensor of the utility model embodiment, cantilever beam is vortex shape, adds the confined space
Interior cantilever beam length, reduces eigentone, enhances energy conversion efficiency, and reduces the need to installation space
It asks, improves applicability.
In some embodiments, the top surface of described matrix is substantially concordant, and the bottom surface of described matrix is substantially concordant.
In some embodiments, the distance between adjacent turn of described matrix is identical.
In some embodiments, the distance between adjacent turn of described matrix is identical with the radial width of described matrix.
In some embodiments, the end part aligning of the free end of the end and described matrix of one end of the mass block.
In some embodiments, the piezoelectric element surface has micro-nano structure.
In some embodiments, the micro-nano structure for cylindrical-array structure, square column array structure, parallel grating structure or
Mastoid process structure.
In some embodiments, the piezoelectric element is located at the upper surface of described matrix.
Energy capture sensor, the energy are included according to the vibration generating device of the embodiment of the utility model another aspect
Amount capture sensor is the energy capture sensor described in above-described embodiment；Voltage stabilizing circuit module, the voltage stabilizing circuit module with
The energy capture sensor is connected, to receive electric signal that the energy capture sensor generates and to the electric signal into
Row rectification and decompression；Energy conservation module, the energy conservation module are connected with the voltage stabilizing circuit module, to store electricity
Energy.
Vibration generating device according to the present utility model can be the sensor power supply on automobile, reduce automobile power source
Use, need not frequently replace button cell and for lithium battery charge, reduce energy consumption.
Vibration generating device, the vibration are included according to the vehicle-mounted detecting system of the embodiment of the utility model another further aspect
Power generator is the vibration generating device described in above-described embodiment；Further include the sensing being connected respectively with the vibration generating device
Device detection module, control module and communication module, the sensor detection module to gather environmental information, simultaneously believe by output environment
Number；The control module is connected with the sensor detection module, to be handled the environmental signal and analyzed with defeated
Go out control signal；The communication module is connected with the control module, to by the control signal transmission to device end.
In some embodiments, the control module includes processing module, and the processing module is detected with the sensor
Module is connected, to receive the environmental signal and be handled to obtain processing signal；Analysis module, the analysis module with
The processing module is connected, to receive the processing signal and be analyzed to export the control signal.
Description of the drawings
Fig. 1 is the structure diagram of the energy capture sensor of embodiment according to the present utility model.
Fig. 2 is the sectional view of the energy capture sensor of embodiment according to the present utility model.
Fig. 3 is the structure diagram of the piezoelectric element of embodiment according to the present utility model.
Fig. 4 is the schematic diagram of the vibration generating device of embodiment according to the present utility model.
Fig. 5 is the schematic diagram of the vehicle-mounted detecting system of embodiment according to the present utility model.
Reference numeral：
Energy capture sensor 100, cantilever beam 1, matrix 11, fixing end 111, free end 112, piezoelectric element 12, quality
Block 13, vibration generating device 200, voltage stabilizing circuit module 101, energy conservation module 102, vehicle-mounted detecting system 300, sensor inspection
Survey module 201, control module 202, processing module 2021, analysis module 2022, communication module 203.
Specific embodiment
The embodiment of the utility model is described below in detail, the example of the embodiment is shown in the drawings.Below by
The embodiment being described with reference to the drawings is exemplary, it is intended to for explaining the utility model, and it is not intended that new to this practicality
The limitation of type.
As shown in Figs. 1-3, cantilever beam 1, cantilever beam are included according to the energy capture sensor 100 of the utility model embodiment
1 includes matrix 11, piezoelectric element 12 and mass block 13.Energy capture at the energy capture sensor 100 under vibration
Sensor 100 obtains energy by the vibration of the free end of cantilever beam 1.
Matrix 11 is for vortex shape and with fixing end 111 and free end 112, and herein, " vortex shape " refers to that matrix 11 includes
The multi-turn formed at grade around default center rotation, and the radial dimension of the radially outer band along matrix 11 is more than inner ring
Radial dimension.Specifically, matrix 11 can be metal material, such as matrix 11 is the metal for including beryllium-bronze and/or aluminium etc.
Material, and the utility model is not limited to this.
Piezoelectric element 12 is located on matrix 11, and piezoelectric element 12 is in the effect being under pressure, the both ends of piezoelectric element 12
Occurs voltage between face, so as to fulfill mechanical oscillation and the mutual conversion of alternating current.Specifically, the upper surface of matrix 11 is equipped with piezoelectricity
Element 12, piezoelectric element 12 can be the materials such as quartz, lithium niobate, barium titanate, lead zirconate titanate, aluminium nitride or zinc oxide, this reality
It is not limited to this with new.Wherein, in " upper surface " " on " refer to towards Fig. 1 in arrow indicate direction, then " under " be
Away from the direction of arrow instruction.
Mass block 13 is arranged on the free end 112 of matrix 11, reduces resonant frequency, is obtained with the free end 112 for improving matrix 11
Take the efficiency of energy.Specifically, the end of the free end 112 of matrix 11 is equipped with mass block 13, further, mass block 13
The end part aligning of the end of one end and the end of the free end 112 of matrix 11 improves the acquisition energy of matrix 11 with further reduce
Efficiency.
It is understood that cantilever beam 1 is whole in vortex shape, in a limited space, the cantilever beam 1 of vortex shape is than common shape
The length of the cantilever beam of shape can be longer, reduces eigentone, enhances the effect that ambient mechanical can be converted to electric energy
Rate, and the demand to installation space is reduced, improve applicability.
In some embodiments, the top surface of matrix 11 is substantially concordant, and the bottom surface of matrix 11 is substantially concordant.In other words, such as Fig. 1
Shown, distinguishing perpendicular to two end faces in direction shown in arrow for matrix 11 is substantially concordant, i.e. the multi-turn of matrix 11 is from same
One plane along the direction extension shown in arrow and height in the direction it is identical.
In some embodiments, the distance between adjacent turn of matrix 11 is identical.In other words, between the adjacent turn of matrix 11
Radial spacing it is identical.
In some embodiments, the distance between adjacent turn of matrix 11 is identical with the radial width of matrix 11.In other words,
Radial spacing between the adjacent turn of matrix 11 is identical with the radial width of each circle of matrix 11.
In some embodiments, 12 surface of piezoelectric element has micro-nano structure.It is understood that micro-nano structure is sub- ripple
Long mesostructure, by being in that can increase the surface area of piezoelectric element with micro-nano structure by the surface processing of piezoelectric element, with
More surface charges are generated, beneficial to raising output voltage.Specifically, micro-nano structure is cylindrical-array structure, square column array junctions
Structure, parallel grating structure or mastoid process structure.For example, as shown in Figure 3, the surface of piezoelectric element 12 has cylindrical-array structure
Micro-nano structure, it is to be understood that cylindrical-array structure refers to the protrusion on piezoelectric element with multiple array arrangements, each
Protrusion is cylinder.
Below with reference to the accompanying drawings 1, attached drawing 2 and attached drawing 3 describe the energy capture sensor of the utility model specific embodiment.
As shown in Figs. 1-3, cantilever beam 1 is included according to the energy capture device 100 of the utility model embodiment, cantilever beam includes
Matrix 11, piezoelectric element 12 and mass block 13.
Matrix 11 is the metal material comprising beryllium-bronze and aluminium, and matrix 11 is for vortex shape and with fixing end 111 and freely
End 112.The multi-turn of matrix 11 be from the direction extension shown in same plane along arrow and height in the direction it is identical.Base
Radial spacing between the adjacent turn of body 11 is identical and the adjacent turn of matrix 11 between radial spacing and each circle of matrix 11
Radial width it is identical.
Piezoelectric element 12 is located at the upper surface of matrix 11, and piezoelectric element 12 can be quartz, lithium niobate, barium titanate, zirconium titanium
The materials such as lead plumbate, aluminium nitride or zinc oxide.12 surface of piezoelectric element has the micro-nano structure of sub-wavelength dimensions, and the micro-nano structure
For cylindrical-array structure.There is voltage in the effect being under pressure between the both ends of the surface of piezoelectric element 12 in piezoelectric element 12, so as to
Realize mechanical oscillation and the mutual conversion of alternating current.
Mass block 13 is arranged on the free end 112 of matrix 11 and the free end of the end and matrix 11 of one end of mass block 13
112 end part aligning, to reduce resonant frequency, the free end 112 for improving matrix 11 obtains the efficiency of energy.
As shown in figure 4, energy capture is included according to the vibration generating device 200 of the embodiment of the utility model another aspect
Sensor 100, voltage stabilizing circuit module 101 and energy conservation module 102.
Energy capture sensor 100 is the energy capture sensor of above-described embodiment.
Voltage stabilizing circuit module 101 is connected with energy capture sensor 100, is generated to receive energy capture sensor 100
Electric signal, voltage stabilizing circuit module 101 includes rectification circuit and reduction voltage circuit, can carry out rectification and decompression to the electric signal.
Energy conservation module 102 is connected with voltage stabilizing circuit module 101, and to store electric energy, energy conservation module 102 is main
Using the electricity memory of lighter weight, including rechargeable battery, conventional capacitive and super capacitor etc..
Vibration generating device according to the present utility model can be the sensor power supply on automobile, reduce automobile power source
Use, need not frequently replace button cell and for lithium battery charge, reduce energy consumption.
As shown in figure 5, vibrating power-generation is included according to the vehicle-mounted detecting system 300 of the embodiment of the utility model another further aspect
The device 200 and sensor detection module 201 being connected respectively with vibration generating device 200, control module 202 and communication module
203, vibration generating device 200 can be respectively that sensor detection module 201, control module 202 and communication module 203 are powered.
Vibration generating device 200 is the vibration generating device of above-described embodiment.
Sensor detection module 201 is gathering environmental information and output environment signal.Wherein, environmental information can be pressure
Power, temperature, gas, humidity etc., then the sensor detection module 201 can be single pressure sensor, temperature sensor, gas
Body sensor or humidity sensor etc. can also be the integrated of multiple sensors.
Control module 202 is connected with sensor detection module 201, to be handled environmental signal and analyzed to export
Control signal.
Communication module 203 is can communicate mould with the low power loss communications module such as the bluetooth of device end wireless connection or Wifi
Block 203 is connected with control module 202, to transmit control signals to device end.
In some embodiments, control module 202 includes processing module 2021 and analysis module 2022.
Processing module 2021 is connected with sensor detection module 201, to receive environmental signal and be handled to obtain
Handle signal.For example, the current signal that processing module 2021 generates sensor detection module 201 is amplified, filters, temperature
Compensation and digital-to-analogue conversion obtain sensor live data values.
Analysis module 2022 is connected with processing module 2021, to receive processing signal and be analyzed to export control letter
Number.For example, analysis module 2022 carries out computing and judgement using microcontroller to the digital signal that processing module 2021 exports.
In the description of the utility model, it is to be understood that term " " center ", " longitudinal direction ", " transverse direction ", " length ", " width
Degree ", " thickness ", " on ", " under ", "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom " " interior ", " outer ", " suitable
The orientation or position relationship of the instructions such as hour hands ", " counterclockwise ", " axial direction ", " radial direction ", " circumferential direction " are based on orientation shown in the drawings
Or position relationship, be for only for ease of description the utility model and simplify description rather than instruction or imply signified device or
Element must have specific orientation, with specific azimuth configuration and operation, therefore it is not intended that limit to the utility model
System.
In the utility model, unless otherwise clearly defined and limited, term " installation ", " connected ", " connection ", " Gu
It is fixed " etc. terms should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected or integral；Can be
Mechanical connection or electrical connection can communicate each other；It can be directly connected, the indirect phase of intermediary can also be passed through
Even, can be the interaction relationship of connection inside two elements or two elements, unless otherwise restricted clearly.For this
For the those of ordinary skill in field, concrete meaning of the above-mentioned term in the utility model can be understood as the case may be.
In the utility model, unless otherwise clearly defined and limited, fisrt feature is "above" or "below" second feature
Can be that the first and second features contact directly or the first and second features pass through intermediary mediate contact.Moreover, first is special
Sign second feature " on ", " top " and " above " can be fisrt feature directly over second feature or oblique upper or only
Represent that fisrt feature level height is higher than second feature.Fisrt feature second feature " under ", " lower section " and " below " can be with
It is fisrt feature immediately below second feature or obliquely downward or is merely representative of fisrt feature level height less than second feature.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or the spy for combining the embodiment or example description
Point is contained at least one embodiment or example of the utility model.In the present specification, to the schematic table of above-mentioned term
It states and is necessarily directed to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be with
It combines in an appropriate manner in any one or more of the embodiments or examples.In addition, without conflicting with each other, this field
Technical staff can by the different embodiments described in this specification or example and different embodiments or exemplary feature into
Row combines and combination.
Although the embodiment of the utility model has been shown and described above, it is to be understood that above-described embodiment is
Illustratively, it is impossible to be interpreted as the limitation to the utility model, those of ordinary skill in the art are in the scope of the utility model
It is interior above-described embodiment to be changed, changed, replaced and modification.
Claims (11)
1. a kind of energy capture sensor, which is characterized in that including cantilever beam, the cantilever beam includes：
Matrix, described matrix is for vortex shape and with fixing end and free end；
Piezoelectric element, the piezoelectric element are set on the matrix；
Mass block, the mass block are arranged on the free end of described matrix.
2. energy capture sensor according to claim 1, which is characterized in that the top surface of described matrix is substantially concordant, institute
The bottom surface for stating matrix is substantially concordant.
3. energy capture sensor according to claim 1, which is characterized in that the distance between adjacent turn of described matrix
It is identical.
4. energy capture sensor according to claim 1, which is characterized in that the distance between adjacent turn of described matrix
It is identical with the radial width of described matrix.
5. energy capture sensor according to claim 1, which is characterized in that the end of one end of the mass block and institute
State the end part aligning of the free end of matrix.
6. energy capture sensor according to claim 1, which is characterized in that the piezoelectric element surface has micro-nano knot
Structure.
7. energy capture sensor according to claim 6, which is characterized in that the micro-nano structure is cylindrical-array knot
Structure, square column array structure, parallel grating structure or mastoid process structure.
8. the energy capture sensor according to any one of claim 1-7, which is characterized in that the piezoelectric element is arranged on
The upper surface of described matrix.
9. a kind of vibration generating device, which is characterized in that including：
Energy capture sensor, the energy capture sensor are the energy capture according to any one of claim 1-8
Sensor；
Voltage stabilizing circuit module, the voltage stabilizing circuit module are connected with the energy capture sensor, are caught to receive the energy
It obtains the electric signal of sensor generation and rectification and decompression is carried out to the electric signal；
Energy conservation module, the energy conservation module are connected with the voltage stabilizing circuit module, to store electric energy.
10. a kind of vehicle-mounted detecting system, which is characterized in that including vibration generating device, the vibration generating device is according to power
Profit requires the vibration generating device described in 9；
The sensor detection module being connected respectively with the vibration generating device, control module and communication module are further included,
The sensor detection module is gathering environmental information and output environment signal；
The control module is connected with the sensor detection module, to be handled the environmental signal and analyzed with defeated
Go out control signal；
The communication module is connected with the control module, to by the control signal transmission to device end.
11. vehicle-mounted detecting system according to claim 10, which is characterized in that the control module includes：
Processing module, the processing module are connected with the sensor detection module, to receive the environmental signal and carry out
It handles to obtain processing signal；
Analysis module, the analysis module are connected with the processing module, to receive it is described processing signal and analyzed with
Export the control signal.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201721610441.9U CN207442719U (en) | 2017-11-27 | 2017-11-27 | Energy capture sensor, vibration generating device and vehicle-mounted detecting system |
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| CN201721610441.9U CN207442719U (en) | 2017-11-27 | 2017-11-27 | Energy capture sensor, vibration generating device and vehicle-mounted detecting system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110661450A (en) * | 2019-09-23 | 2020-01-07 | 广西大学 | Piezoelectric vibrator with non-linear differential geometric characteristics |
| CN111879825A (en) * | 2020-06-24 | 2020-11-03 | 南方科技大学 | Gas-sensitive sensing device, system and gas detection method |
-
2017
- 2017-11-27 CN CN201721610441.9U patent/CN207442719U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110661450A (en) * | 2019-09-23 | 2020-01-07 | 广西大学 | Piezoelectric vibrator with non-linear differential geometric characteristics |
| CN110661450B (en) * | 2019-09-23 | 2022-03-29 | 广西大学 | Piezoelectric vibrator with non-linear differential geometric characteristics |
| CN111879825A (en) * | 2020-06-24 | 2020-11-03 | 南方科技大学 | Gas-sensitive sensing device, system and gas detection method |
| CN111879825B (en) * | 2020-06-24 | 2023-05-12 | 南方科技大学 | Gas-sensitive sensing device, system and gas detection method |
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