CN206060565U - A kind of piezoelectric type bituminous paving power collecting device - Google Patents
A kind of piezoelectric type bituminous paving power collecting device Download PDFInfo
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- CN206060565U CN206060565U CN201621099414.5U CN201621099414U CN206060565U CN 206060565 U CN206060565 U CN 206060565U CN 201621099414 U CN201621099414 U CN 201621099414U CN 206060565 U CN206060565 U CN 206060565U
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Abstract
This utility model belongs to new forms of energy and collects transformation technology field, discloses a kind of piezoelectric type bituminous paving power collecting device and its collection method, including electric energy collecting circuit (5) and piezoelectric transducer (1)；Electric energy collecting circuit (5) includes rectification module (6), filter capacitor (7), electric pressure converter (8) and the first charging capacitor (17)；This utility model is defined the pulse charge unit (21) 21 of management by piezoelectric transducer (1), rectification module (6), filter capacitor (7), electric pressure converter (8), the first charging capacitor (17) and charge power to the first charging capacitor (17), stable half of output in the second charging capacitor of input power of the first charging capacitor or so can be made, the first charging capacitor can be made stably to store the electricity of piezoelectric transducer generation.
Description
Technical field
This utility model belongs to new forms of energy and collects transformation technology field, more particularly to a kind of piezoelectric type bituminous paving electric energy is received
Acquisition means.
Background technology
When vehicle crosses bituminous paving, bituminous paving can be deformed and be vibrated because being rolled by vehicle, so as to produce
Mechanical energy, and produced mechanical energy can be dispersed in the external world with form of thermal energy by vibration.On road surface during one's term of military service, undergo
The mechanical vibration for being caused by driving vehicle for up to ten million times, produce substantial amounts of mechanical energy.If the mechanical energy conversion that road surface can be produced
For electric energy, the electric energy that not only can be cleaned with output, the vibration and deformation on road surface can also be reduced, pavement structure is reduced and damaged, drop
Low structural maintenance cost and reduction noise pollution etc..
At present, the mechanical work done by traffic loading road pavement can be partially converted into electric energy using piezoelectric effect, is realized
Above-mentioned imagination.Specifically, in prior art, a kind of concrete implementation method is：Imbed piezoelectric transducer in road surface in advance,
When vehicle is crossed, piezoelectric transducer produces cooperative transformation with pavement structure, and the core material (such as PZT) of piezoelectric transducer is internal
Positive and negative charge center occur relative displacement, so as to cause occur contrary sign polarization charge on its surface, so produce electric potential difference
(voltage), so as to the mechanical energy that vehicular traffic is acted on bituminous paving is converted into electric energy.Electric energy after conversion can be road edge
The information board of line, reflecting button etc. provide energy, or even can be that road particular facility (such as tunnel, service area) and subjective reflection are carried
For sufficient electrical energy, this kind of mode is important to promoting the green clean energy resource utilization of Construction of Highway Traffic field, environmental protection to have
Social benefit.
However, what piezoelectric transducer produced is alternating current, the sense of current frequent transitions of output cause existing piezoelectric type
Power collecting device cannot stably collect the electricity that the piezo-electric device is produced.
Utility model content
The purpose of this utility model is to provide a kind of piezoelectric type bituminous paving power collecting device, solves in prior art
What the piezo-electric device of presence was produced is alternating current, and the sense of current frequent transitions of output cause existing piezoelectric electric-energy to be collected
Device cannot stably collect the problem of the electricity that the piezo-electric device is produced.
In order to achieve the above object, this utility model is employed the following technical solutions and is achieved.
A kind of piezoelectric type bituminous paving power collecting device, including electric energy collecting circuit and the pressure being arranged in bituminous paving
Electric transducer；Wherein, the electric energy collecting circuit is filled comprising processor, rectification module, filter capacitor, electric pressure converter and first
Electric capacity；
The positive and negative electrode of the voltage output end of the piezoelectric transducer passes through wire respectively and the voltage of the rectification module is defeated
The positive and negative electrode correspondence for entering end connects；The positive pole of the voltage output end of rectification module positive pole respectively with the filter capacitor
Connect with the input of the electric pressure converter, the negative pole of the voltage output end of the rectification module respectively with the filter capacitor
Negative pole, the earth terminal of the electric pressure converter, the maximum power point control end of the electric pressure converter, the electric pressure converter
Electric current aids in the negative pole connection of end and first charging capacitor, the minus earth of first charging capacitor；The voltage turns
The positive pole connection of the main outfan of parallel operation and first charging capacitor；The Enable Pin of the electric pressure converter and the processor
Current lead-through or open command outfan connection, the voltage input end of the auxiliary output terminal and processor of the electric pressure converter
Connection；
Voltage input end input boost voltage of the auxiliary output terminal of the electric pressure converter to the processor, the place
Reason device is provided with voltage threshold, and the value of boost voltage is compared with voltage threshold and is judged by the processor, works as auxiliary
When the value of voltage is more than the voltage threshold, the current lead-through or open command outfan of processor is to the electric pressure converter
Enable Pin sends the signal for making main output end current conducting, the main outfan output current of the electric pressure converter.
Further, the electric energy collecting circuit is additionally provided with pulse charge unit, and the pulse charge unit is included：Second
Charging capacitor, the first field effect transistor, voltage comparator, the second field effect transistor, first resistor, second resistance and Zener diode；
The positive pole of second charging capacitor outfan respectively with the electric pressure converter, second field effect transistor
One end connection of source electrode and the first resistor, the negative pole of second charging capacitor source respectively with first field effect transistor
The negative pole connection of pole, the common of the voltage comparator, one end of the second resistance and first charging capacitor；Institute
The grid for stating the second field effect transistor is connected with the drain electrode of first field effect transistor, the drain electrode of second field effect transistor and described
The positive pole connection of the first charging capacitor；The positive pole of the input of the voltage comparator other end respectively with the first resistor
And the other end connection of the second resistance, the negative pole of the voltage comparator input and the outfan of the Zener diode
Connection, the input of Zener diode are connected with the main outfan of the electric pressure converter；The outfan of the voltage comparator
It is connected with the grid of first field effect transistor.
Further, the electric energy collecting circuit also includes compensating electric capacity, the voltage output end of the rectification module it is negative
Pole is also connected with the negative pole of the compensating electric capacity, and the positive pole of the compensating electric capacity is connected with the electric current auxiliary end of the electric pressure converter
Connect.
Further, the pulse charge unit is also included：3rd resistor and the first electric capacity, one end of the 3rd resistor
It is connected with the positive pole of second charging capacitor, the other end of the 3rd resistor is connected with the drain electrode of first field effect transistor
Connect；One end of first electric capacity is connected with the positive pole of the second charging capacitor, and the other end of the first electric capacity is imitated with described second
Should pipe drain electrode connection.
Further, first field effect transistor, the second field effect transistor are respectively p-type field effect transistor.
Further, model LTC3105 of the electric pressure converter.
The beneficial effects of the utility model are, by piezoelectric transducer, rectification module, filter capacitor, electric pressure converter,
One charging capacitor and the charge power to the first charging capacitor are defined the pulse charge unit of management, can make the first charging
Stable half of output in the second charging capacitor of the input power of electric capacity or so；Solve
What electric installation was produced is alternating current, the sense of current frequent transitions of output, causes the existing piezoelectric electric-energy collection device cannot
The problem of the electricity that the piezo-electric device is produced is collected stably.
Description of the drawings
With reference to the accompanying drawings and detailed description this utility model is described in detail.
Fig. 1 is a kind of electric energy collecting circuit schematic diagram of piezoelectric type bituminous paving power collecting device of the present utility model；
Fig. 2 is a kind of electric energy collecting circuit embodiment of piezoelectric type bituminous paving power collecting device of the present utility model
Structural representation；
Circuit diagrams of the Fig. 3 for the pulse charge unit of Fig. 2；
Fig. 4 is a kind of electric energy collecting circuit embodiment of piezoelectric type bituminous paving power collecting device of the present utility model
Overall structure diagram；
Fig. 5 is a kind of FB(flow block) of the collection method of piezoelectric type bituminous paving power collecting device of the present utility model；
Fig. 6 is a kind of pulse charge list of the collection method of piezoelectric type bituminous paving power collecting device of the present utility model
The FB(flow block) of first part.
In figure, 1, piezoelectric transducer；2nd, bituminous paving；3rd, processor；4th, voltage and current detecting device；5th, electricity collection electricity
Road；6th, rectification module；7th, filter capacitor；8th, electric pressure converter；9th, the second charging capacitor；10th, 3rd resistor；11st, first effect
Ying Guan；12nd, the first electric capacity；13rd, voltage comparator；14th, the second field effect transistor；15th, first resistor；16th, second resistance；17th,
One charging capacitor；18th, Zener diode；19th, load；20th, compensating electric capacity；21st, pulse charge unit.
Specific embodiment
Below in conjunction with the accompanying drawing in this utility model embodiment, the technical scheme in this utility model embodiment is carried out
Clearly and completely describe.
With reference to Fig. 1, a kind of piezoelectric type bituminous paving power collecting device of the present utility model, including being arranged on bituminous paving
Piezoelectric transducer 1 and electric energy collecting circuit 5 in 2；Electric energy collecting circuit 5 includes rectification module 6, filter capacitor 7 (i.e. C1), electricity
Pressure converter 8, processor 3 and the first charging capacitor 17 (i.e. C4).
Specifically, the positive and negative electrode of the voltage output end of piezoelectric transducer 1 is respectively by wire and the voltage of rectification module 6
The positive and negative electrode correspondence of input connects；The positive pole of the voltage output end of rectification module 6 positive pole and electricity respectively with filter capacitor 7
Input (the i.e. VIN pins) connection of pressure converter 8, the negative pole of the voltage output end of rectification module 6 respectively with filter capacitor 7
Negative pole, the earth terminal (i.e. GND pins) of electric pressure converter 8, the maximum power point control end (i.e. MPPC pins) of electric pressure converter 8,
The negative pole connection of electric current auxiliary end (i.e. AUX pins) and the first charging capacitor 17 of electric pressure converter 8, the first charging capacitor 17
Minus earth；The main outfan (i.e. VOUT pins) of electric pressure converter 8 is connected with the positive pole of the first charging capacitor 17；First charges
The voltage output end of electric capacity 17 is connected with load 19；The Enable Pin (i.e. SHDN pins) and the electric current of processor 3 of electric pressure converter 8
The instruction output end that is turned on or off connects, and the auxiliary output terminal (i.e. LDO pins) of electric pressure converter 8 and the voltage of processor 3 are defeated
Enter end connection.
Voltage input end input boost voltage of the auxiliary output terminal (LDO pins) of electric pressure converter 8 to processor 3, place
Reason device 3 is provided with voltage threshold, and the value of boost voltage is compared with voltage threshold and is judged by processor 3, when auxiliary electricity
When the value of pressure is more than the voltage threshold, the current lead-through or open command outfan of processor 3 is to the electric pressure converter 8
Enable Pin (SHDN pins) sends the signal for making main outfan (VOUT pins) current lead-through, the main outfan of electric pressure converter 8
(VOUT pins) output current.
Preferably, electric energy collecting circuit 5 also includes compensating electric capacity 20 (i.e. C5), the voltage output end of rectification module 6 it is negative
Pole is also associated with the negative pole of compensating electric capacity 20, and (i.e. AUX is managed at the electric current auxiliary end of the positive pole and electric pressure converter 8 of compensating electric capacity 20
Foot) connection.
Arrange compensating electric capacity 20 purpose be：Because electric current auxiliary end (AUX pins) of electric pressure converter 8 is needed by auxiliary
Outfan (LDO pins) provides a stable accessory power supply for processor 3, therefore at the electric current auxiliary end of electric pressure converter 8
(AUX pins) place arranges a compensating electric capacity 20, reduces the impact that electric current aids in end (AUX pins) to electric current, makes input current
The voltage of auxiliary end (i.e. AUX pins) keeps stable, so that the voltage stabilization of input processor 3.
Wherein, piezoelectric transducer 1 be cymbal PZT-5H types, model LTC3105 of electric pressure converter 8, rectification module 6
Model KBP310, filter capacitor 7 adopt Rukycon50V10nF, the model YXA SL36 (M) of the first charging capacitor 17
RA105℃。
In piezoelectric type bituminous paving power collecting device of the present utility model, piezoelectric transducer 1, rectification module 6, filtering
Electric capacity 7, electric pressure converter 8 and the first charging capacitor 17 form primary circuit.When there is vehicle to cross on bituminous paving, piezoelectricity is changed
Energy device 1 produces alternating current, and alternating current is converted into unidirectional current by rectification module 6；Unidirectional current will be residual in loop by filter capacitor 7
The Alternating Component deposited is filtered, and while higher hamonic wave is filtered, improves the moment overload capacity of electric current output；After filtering
First electric current of the unidirectional current by output voltage stabilization after electric pressure converter 8, the voltage of the first electric current is first voltage, and first is electric
Stream flows into the first charging capacitor 17, and is stored in the first charging capacitor 17, and the first charging capacitor 17 can be used to supply to load 19
Electricity.
With reference to Fig. 2, Fig. 3 and Fig. 4, electric energy collecting circuit 5 is additionally provided with pulse charge unit 21, and pulse charge unit 21 is used for
The charge power of the first charging capacitor 17 is defined, pulse charge unit 21 is included：Second charging capacitor 9 (i.e. C2),
One field effect transistor 11 (i.e. Q2), voltage comparator 13, the second field effect transistor 14 (Q1), first resistor 15 (i.e. R2), second resistance
16 (i.e. R3) and Zener diode 18；Wherein, the positive pole of the second charging capacitor 9 is respectively with the outfan of electric pressure converter 8 (i.e.
VOUT pins), one end connection of the source electrode of the second field effect transistor 14 and first resistor 15, the negative pole difference of the second charging capacitor 9
Source electrode, the common of voltage comparator 13, one end of second resistance 16 and the first charging capacitor with the first field effect transistor 11
17 negative pole connection；The grid of the second field effect transistor 14 is connected with the drain electrode of the first field effect transistor 11, the second field effect transistor 14
Drain electrode is connected with the positive pole of the first charging capacitor 17；The positive pole of the input of voltage comparator 13 is another with first resistor 15 respectively
The other end connection of one end and second resistance 16, the negative pole of 13 input of voltage comparator are connected with the outfan of Zener diode 18
Connect, the input of Zener diode 18 is connected with the main outfan (i.e. VOUT pins) of electric pressure converter 8；Voltage comparator 13
The grid connection of outfan and the first field effect transistor 11.Wherein, the first field effect transistor 11, the second field effect transistor 14 are respectively p-type
Field effect transistor.
Pulse charge unit 21 is by the second charging capacitor 9,3rd resistor 10, first resistor 15, second resistance 16, voltage stabilizing
One secondary circuit of diode 18, voltage comparator 13, the first field effect transistor 11 and the second field effect transistor 14 composition, for right
The charge power of the first charging capacitor 17 is defined management.Specifically, main outfan of first electric current from electric pressure converter 8
(i.e. VOUT pins) flows out, and the second charging capacitor 9 is charged, when the voltage at 9 two ends of the second charging capacitor is more than first electric
During the voltage of stream, the second charging capacitor 9 starts electric discharge, obtains the voltage of the second electric current and the second electric current, i.e. second voltage, and second
Electric current flows through first resistor 15 and second resistance 16, and first resistor 15 and second resistance 16 carry out partial pressure and form the to second voltage
Three voltages, voltage comparator 13 are compared to the first voltage of 8 outfan of tertiary voltage and electric pressure converter, work as tertiary voltage
During more than first voltage, voltage comparator 13 exports the 3rd electric current to the first field effect transistor 11, makes the first field effect transistor 11, second
The line conduction of field effect transistor 14 and the first charging capacitor 17, so as to be charged to the first charging capacitor 17.In this process,
Stable half of output in the second charging capacitor 9 of input power of the first charging capacitor 17 or so can be made.
Preferably, pulse charge unit 21 is also included：3rd resistor 10 (i.e. R1) and the first electric capacity 12 (i.e. C3), the 3rd is electric
One end of resistance 10 and the positive pole connection of the second charging capacitor 9, the drain electrode of the other end of 3rd resistor 10 and the first field effect transistor 11
Connection；The positive pole connection of one end of the first electric capacity 12 and the second charging capacitor 9, the other end of the first electric capacity 12 and the second field effect
The drain electrode connection of pipe 14.3rd resistor 10 and the first electric capacity 12 are shielded to the electric current of the second field effect transistor 14 respectively.
Piezoelectric type bituminous paving power collecting device of the present utility model is by piezoelectric transducer 1, rectification module 6, filtering
Electric capacity 7, electric pressure converter 8, the first charging capacitor 17 and the charge power to the first charging capacitor 17 are defined the arteries and veins of management
Charhing unit 21 is rushed, the input power of the first charging capacitor 17 can be made to stablize one of the output in the second charging capacitor 9
Half left and right, the first charging capacitor 17 is in all the time optimal by electricity condition, reach then that power density is high, the discharge and recharge time
It is short, have extended cycle life, the accumulator effect that operating temperature range is wide.
A kind of collection method of piezoelectric type bituminous paving power collecting device, based on a kind of above-mentioned piezoelectric type bituminous paving
Power collecting device, the piezoelectric type bituminous paving power collecting device include the piezoelectric transducer 1 being arranged in bituminous paving 2
With electric energy collecting circuit 5；Electric energy collecting circuit 5 includes rectification module 6, filter capacitor 7, electric pressure converter 8 and the first charging electricity
Hold 17, the two ends connection of the voltage and current detecting device 4 and first charging capacitor 17；As shown in figure 5, the collection side
Method includes：
Step 1：When vehicle crosses bituminous paving 2, the piezoelectric transducer 1 to being embedded in bituminous paving 2 produces extruding, pressure
The mechanical energy that vehicle is acted on thereon is converted into electric energy by electric transducer 1, produces alternating current；
Step 2：The alternating current flows into rectification module 6 by wire, and alternating current is converted into direct current by rectification module 6
Electric current, the DC current include the higher hamonic wave produced when alternating current is converted into DC current by rectification module 6；
Step 3：The DC current enters filter capacitor 7, and the higher hamonic wave included in DC current is filtered by filter capacitor 7
Remove, obtain the DC current after higher hamonic wave is filtered；
Step 4：DC current after the higher hamonic wave is filtered enters electric pressure converter 8, and 3 pairs of voltages of processor turn
The boost voltage of parallel operation 8 is judged that, when boost voltage is more than the voltage threshold of setting in the processor 3, processor 3 leads to
The main outfan that Enable Pin is crossed to the electric pressure converter 8 sends the instruction of current lead-through, the main output of the electric pressure converter 8
End output first voltage and the first electric current；
Step 5：First electric current is charged to the first charging capacitor 17, and the voltage and current detecting device 4 is real-time
The voltage or electric current at 17 two ends of the first charging capacitor are monitored, and obtain the magnitude of voltage at 17 two ends of the first charging capacitor in real time
Or current value；Formula P=CU can be passed through2/ 2 or P=I2R, draws the charge power at 17 two ends of the first charging capacitor, to Colophonium
The electricity collection situation on road surface 2 carries out monitor in real time.
Further, the electric energy collecting circuit 5 also includes pulse charge unit 21, as shown in fig. 6, the collection side
Method is also comprised the steps of：
Step 5.1：First electric current flows into the second charging capacitor 9, and the second charging capacitor 9 is charged；When second
The magnitude of voltage at 9 two ends of charging capacitor more than the first electric current magnitude of voltage when, the second charging capacitor 9 starts back discharge, obtains the
Two voltages and the second electric current；
Step 5.2：Second electric current flows into first resistor 15 and second resistance 16 successively, and first resistor 15 and second is electric
16 pairs of second voltages of resistance carry out partial pressure and form tertiary voltage and the 3rd electric current；
Step 5.3：3rd electric current flows into voltage comparator 13, and voltage comparator 13 is by the tertiary voltage and described
First voltage is compared, and when third voltage value is more than first voltage value, voltage comparator 13 exports the 4th electric current to first
Field effect transistor 11, makes the line conduction of the first field effect transistor 11, the second field effect transistor 14 and the first charging capacitor 17；
Step 5.4：4th electric current flows into first charging capacitor 17, and the first charging capacitor 17 is charged；
The voltage and current detecting device 4 is monitored to the voltage or electric current at 17 two ends of the first charging capacitor in real time, and is obtained in real time
The magnitude of voltage or current value at 17 two ends of the first charging capacitor, you can by formula
P=CU2/ 2 or P=I2R, draws the charge power at 17 two ends of the first charging capacitor, and the electric energy of bituminous paving 2 is received
Collection situation carries out monitor in real time.
Above content is with reference to specific preferred implementation further detailed description of the utility model, it is impossible to
Identification is of the present utility model to be embodied as being confined to these explanations.For the ordinary skill of this utility model art
For personnel, without departing from the concept of the premise utility, some simple deduction or replace can also be made, should be all regarded
To belong to protection domain of the present utility model.
Claims (6)
1. a kind of piezoelectric type bituminous paving power collecting device, it is characterised in that including electric energy collecting circuit (5) and be arranged on drip
Piezoelectric transducer (1) in blue or green road surface (2)；Wherein, the electric energy collecting circuit (5) comprising processor (3), rectification module (6),
Filter capacitor (7), electric pressure converter (8) and the first charging capacitor (17)；
The positive and negative electrode of the voltage output end of the piezoelectric transducer (1) passes through the voltage of wire and the rectification module (6) respectively
The positive and negative electrode correspondence of input connects；The positive pole of the voltage output end of the rectification module (6) respectively with the filter capacitor
(7) the input connection of positive pole and the electric pressure converter (8), the negative pole point of the voltage output end of the rectification module (6)
Negative pole, the earth terminal of the electric pressure converter (8) not with the filter capacitor (7), the maximum work of the electric pressure converter (8)
The negative pole connection at rate point control end, the electric current auxiliary end of the electric pressure converter (8) and first charging capacitor (17), described the
The minus earth of one charging capacitor (17)；The main outfan and first charging capacitor (17) of the electric pressure converter (8)
Positive pole connects；The current lead-through of the Enable Pin and the processor (3) of the electric pressure converter (8) or open command outfan connect
Connect, the voltage input end connection of the auxiliary output terminal and processor (3) of the electric pressure converter (8).
2. piezoelectric type bituminous paving power collecting device according to claim 1, it is characterised in that the electricity collection electricity
Road (5) is additionally provided with pulse charge unit (21), and the pulse charge unit (21) includes：Second charging capacitor (9), first effect
(11), voltage comparator (13), the second field effect transistor (14), first resistor (15), two pole of second resistance (16) and voltage stabilizing should be managed
Pipe (18)；
The positive pole of second charging capacitor (9) outfan respectively with the electric pressure converter (8), second field effect transistor
(14) one end connection of source electrode and the first resistor (15), the negative pole of second charging capacitor (9) is respectively with described the
The source electrode of one field effect transistor (11), the common of the voltage comparator (13), one end of the second resistance (16) and institute
State the negative pole connection of the first charging capacitor (17)；The grid of second field effect transistor (14) and first field effect transistor (11)
Drain electrode connection, the drain electrode of second field effect transistor (14) is connected with the positive pole of first charging capacitor (17)；The electricity
Pressure comparator (13) input positive pole respectively with the other end and the second resistance (16) of the first resistor (15)
The other end connects, and the negative pole of voltage comparator (13) input is connected with the outfan of the Zener diode (18), institute
The input for stating Zener diode (18) is connected with the main outfan of the electric pressure converter (8)；The voltage comparator (13)
Outfan be connected with the grid of first field effect transistor (11).
3. piezoelectric type bituminous paving power collecting device according to claim 1, it is characterised in that the electricity collection electricity
Road (5) also includes compensating electric capacity (20), and the negative pole of the voltage output end of the rectification module (6) connects the compensating electric capacity (20)
Negative pole, the positive pole of the compensating electric capacity (20) is connected with the electric current auxiliary end of the electric pressure converter (8).
4. piezoelectric type bituminous paving power collecting device according to claim 2, it is characterised in that the pulse charge list
First (21) also include：3rd resistor (10) and the first electric capacity (12), one end of the 3rd resistor (10) charge with described second
The positive pole connection of electric capacity (9), the other end of the 3rd resistor (10) are connected with the drain electrode of first field effect transistor (11)；Institute
The one end for stating the first electric capacity (12) is connected with the positive pole of the second charging capacitor (9), the other end of the first electric capacity (12) and described
The drain electrode connection of two field effect transistor (14).
5. piezoelectric type bituminous paving power collecting device according to claim 2, it is characterised in that first field effect
Pipe (11), the second field effect transistor (14) are respectively p-type field effect transistor.
6. piezoelectric type bituminous paving power collecting device according to claim 1, it is characterised in that the electric pressure converter
(8) model LTC3105.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621099414.5U CN206060565U (en) | 2016-09-30 | 2016-09-30 | A kind of piezoelectric type bituminous paving power collecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621099414.5U CN206060565U (en) | 2016-09-30 | 2016-09-30 | A kind of piezoelectric type bituminous paving power collecting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206060565U true CN206060565U (en) | 2017-03-29 |
Family
ID=58366791
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621099414.5U Expired - Fee Related CN206060565U (en) | 2016-09-30 | 2016-09-30 | A kind of piezoelectric type bituminous paving power collecting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206060565U (en) |
-
2016
- 2016-09-30 CN CN201621099414.5U patent/CN206060565U/en not_active Expired - Fee Related
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170329 Termination date: 20180930 |
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| CF01 | Termination of patent right due to non-payment of annual fee |