CN112217418B - Assembled road piezoelectric power generation system and paving method - Google Patents
Assembled road piezoelectric power generation system and paving method Download PDFInfo
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- CN112217418B CN112217418B CN202010905884.0A CN202010905884A CN112217418B CN 112217418 B CN112217418 B CN 112217418B CN 202010905884 A CN202010905884 A CN 202010905884A CN 112217418 B CN112217418 B CN 112217418B
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02N—ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
- H02N2/00—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction
- H02N2/18—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction producing electrical output from mechanical input, e.g. generators
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C11/00—Details of pavings
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0013—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries acting upon several batteries simultaneously or sequentially
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/32—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from a charging set comprising a non-electric prime mover rotating at constant speed
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02N—ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
- H02N2/00—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction
- H02N2/18—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction producing electrical output from mechanical input, e.g. generators
- H02N2/186—Vibration harvesters
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02N—ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
- H02N2/00—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction
- H02N2/22—Methods relating to manufacturing, e.g. assembling, calibration
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J2207/00—Indexing scheme relating to details of circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J2207/50—Charging of capacitors, supercapacitors, ultra-capacitors or double layer capacitors
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- Power Engineering (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Manufacturing & Machinery (AREA)
- General Electrical Machinery Utilizing Piezoelectricity, Electrostriction Or Magnetostriction (AREA)
Abstract
本发明提供了一种装配式道路压电发电系统及铺设方法，包括底板，底板上阵列式安装有多个独立的压电发电装置，多个压电发电装置分为多个组，同一个组中的压电发电装置与对应的同一个电能存储器相连，多个电能存储器之间通过导线串联；压电发电装置包括上凸限位基板，上凸限位基板内嵌入式安装有多个压电俘能单元，多个压电俘能单元均与上凸限位基板侧壁上设置的输出端口相连，压电俘能单元的上表面凸出至上凸限位基板外与盖合在上凸限位基板上的下凹盖板接触。本发明的系统采用全装配、模块化设计，提高了道路压电发电系统的能量转换效率，实现了装配的规模化与施工的便捷化，更好地与实际道路应用环境契合。
The invention provides an assembled road piezoelectric power generation system and a laying method, comprising a base plate, a plurality of independent piezoelectric power generation devices are installed in an array on the base plate, and the plurality of piezoelectric power generation devices are divided into multiple groups, and the same group The piezoelectric generating device in the middle is connected to the same corresponding electric energy storage, and the plurality of electric energy storages are connected in series by wires; the piezoelectric generating device comprises an upper convex limiting substrate, and a plurality of piezoelectrics are embedded in the upper convex limiting substrate. Energy capture unit, a plurality of piezoelectric energy capture units are connected to the output ports provided on the sidewall of the upper convex limit substrate, and the upper surface of the piezoelectric energy capture unit protrudes to the outside of the upper convex limit substrate and is covered on the upper convex limit contact with the recessed cover on the base plate. The system of the invention adopts a fully assembled and modular design, which improves the energy conversion efficiency of the road piezoelectric power generation system, realizes the scale of assembly and the convenience of construction, and better fits the actual road application environment.
Description
Technical Field
The invention belongs to the field of road engineering, relates to a piezoelectric power generation technology, and particularly relates to an assembled road piezoelectric power generation system and a paving method.
Background
The road contains abundant mechanical energy, and if the mechanical energy can be utilized and converted into clean electric energy, the current situation of the conventional energy exhaustion can be effectively relieved. Piezoelectric energy harvesting techniques can achieve this conversion by the direct piezoelectric effect of piezoelectric materials. The road piezoelectric energy collecting technology mainly adopts a piezoelectric power generation device with a certain structure to be laid in a road surface structure. However, the existing piezoelectric power generation device has the problems of low mechanical-electrical conversion efficiency, insufficient waterproof and dustproof capacity, poor road traffic environment applicability and the like, and the use of the piezoelectric power generation device is influenced, meanwhile, the disclosed device laying mode is mainly that a single device is directly and dispersedly embedded in a road surface or single module concrete is packaged and embedded, the construction process is complex, time and labor are wasted, the construction quality is difficult to guarantee, the energy collection efficiency of the power generation road surface laid by the embedding mode is low, and the piezoelectric power generation device is difficult to adapt to long-term rolling of road driving.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide an assembled road piezoelectric power generation system and a paving method thereof, so as to solve the technical problem that the piezoelectric power generation system in the prior art has poor applicability to road traffic environment.
In order to solve the technical problems, the invention adopts the following technical scheme:
an assembled road piezoelectric power generation system comprises a bottom plate, wherein a plurality of independent piezoelectric power generation devices are arranged on the bottom plate in an array mode and are divided into a plurality of groups, the piezoelectric power generation devices in the same group are connected with the same corresponding electric energy storage, and the plurality of electric energy storage are connected in series through a lead;
the piezoelectric power generation device comprises an upper convex limiting substrate, a plurality of piezoelectric energy harvesting units are embedded in the upper convex limiting substrate, the piezoelectric energy harvesting units are connected with output ports arranged on the side wall of the upper convex limiting substrate, and the upper surfaces of the piezoelectric energy harvesting units protrude out of the upper convex limiting substrate and are in contact with a lower concave cover plate covered on the upper convex limiting substrate;
limiting bolt mounting counter bores are arranged at four corners of the lower concave cover plate, limiting bolt mounting through holes are arranged at four corners of the upper convex limiting base plate, limiting bolt mounting blind holes are arranged on the bottom plate, limiting bolts sequentially penetrate through the limiting bolt mounting counter bores and the limiting bolt mounting through holes and are connected with the limiting bolt mounting blind holes, and the piezoelectric power generation device is mounted on the bottom plate;
the limiting bolt is also provided with an anti-loosening mechanism.
The invention also has the following technical characteristics:
the anti-loosening mechanism comprises a first pin clamping groove which is formed in the bolt head of the limiting bolt in a penetrating mode along the radial direction, a plurality of second pin clamping grooves which are symmetrically arranged are formed in the concave cover plate which is arranged on the periphery of the top of the limiting bolt installation counter bore along the radial direction, the inner end of each second pin clamping groove penetrates through the side wall of the corresponding limiting bolt installation counter bore, and pins are clamped in the first limiting clamping groove and the second limiting clamping groove.
The bottom plate is provided with hoisting and fixing holes.
The electric energy storage upper cover closed have the encapsulation to cut off the case, encapsulation cuts off and has seted up a plurality of line mouths of walking all around of case lower limb.
The electric energy storages are connected with an external electric energy output terminal through wires.
The invention also discloses a paving method of the assembly type road piezoelectric power generation system, wherein the assembly type road piezoelectric power generation system adopts the assembly type road piezoelectric power generation system;
the method comprises the following steps:
step one, on-site grooving construction:
excavating a power generation system mounting groove matched with the assembly type road piezoelectric power generation system on the road plate along the direction of a driving wheel track or the direction of a driving lane, excavating a lead mounting groove, and leveling the bottom of the groove;
step two, hoisting the assembly type road piezoelectric power generation system:
hoisting the assembly type road piezoelectric power generation system to a groove position of a power generation system mounting groove, fixing the assembly type road piezoelectric power generation system, and laying a lead in the lead mounting groove;
step three, filling and compacting the road surface
And selecting groove filler with high coupling property with the road surface to fill and level the groove position according to the type of the pavement of the road plate, and performing compaction and maintenance treatment.
The power generation system mounting groove and the assembly type road piezoelectric power generation system are fixed through bolts or adhesives.
The hoisting mode is electromagnetic hoisting or hoisting by using a mechanical hoisting tool through hoisting and fixing holes.
The lead is sleeved with a protective tube.
Compared with the prior art, the invention has the following technical effects:
the system adopts full assembly and modular design, improves the energy conversion efficiency of the road piezoelectric power generation system, realizes scale assembly and convenient construction, and better fits with the actual road application environment.
And (II) the piezoelectric power generation device has an upper concave-lower convex type interlayer structure, a non-penetrating energy harvesting unit groove and a steel plate substrate limiting bolt fixing groove, so that the durability, the waterproof capability and the dustproof capability of the piezoelectric power generation device in an actual road application environment are improved. The integral limiting base plate is designed, so that slippage of the energy harvesting unit and shearing damage of the bolt are avoided; the spacing bolt adopts the locking design that moves, prevents that spacing bolt from moving up under the long-term vibration load in road surface, has further improved the device durability.
(III) the energy storage module adopts a grouping acquisition mode, so that the internal consumption of a circuit is reduced, the energy storage efficiency of the piezoelectric power generation system is improved, and the hot plug connection between the piezoelectric power generation device and the energy storage device is convenient for leading out of a wire inside the device and later maintenance.
(IV) the assembly array of the piezoelectric power generation device fully considers the type of the vehicle and the distribution characteristics of the wheel tracks of the vehicle, and the mechanical vibration energy capture efficiency of the piezoelectric power generation device is effectively improved.
And (V) systematic assembly and integral laying of the piezoelectric power generation device simplify the field construction process, effectively shorten the construction sealing period and improve the long-term use performance of the piezoelectric power generation device.
Drawings
Fig. 1 is a schematic structural diagram of an overall assembled road piezoelectric power generation system.
Fig. 2 is a partially enlarged schematic view of the fabricated road piezoelectric power generation system.
Fig. 3 is a schematic structural diagram of the base plate.
Fig. 4 is a schematic view of the internal structure of the piezoelectric power generator.
Fig. 5 is a schematic structural view of the anti-loosening mechanism.
Fig. 6 is a schematic structural diagram of a package partition box.
Fig. 7 is a schematic diagram of the laying state of the fabricated road piezoelectric power generation system.
The meaning of the individual reference symbols in the figures is: 1-a bottom plate, 2-a piezoelectric power generation device, 3-an electric energy storage, 4-a wire, 5-a loosening prevention mechanism, 6-a hoisting and fixing hole, 7-a packaging partition box, 8-a wiring hole, 9-an external electric energy output terminal, 10-a road plate, 11-an assembled road piezoelectric power generation system, 12-a power generation system installation groove, 13-a wire installation groove, 14-a protection pipe and 15-groove packing;
201-an upward convex limiting substrate, 202-a piezoelectric energy capturing unit, 203-an output port, 204-a downward concave cover plate, 205-a limiting bolt mounting counter bore, 206-a limiting bolt mounting through hole, 207-a limiting bolt mounting blind hole, 208-a limiting bolt, 209-a first pin clamping groove, 210-a second pin clamping groove and 211-a pin.
The present invention will be explained in further detail with reference to examples.
Detailed Description
The invention provides an assembly type road piezoelectric power generation system and a paving method based on a piezoelectric power generation technology, a road piezoelectric power generation device is reasonably designed, and is systematically integrated with supporting facilities, and a complete assembly scheme and a paving method are designed, so that the modularization and the rapid paving of the road piezoelectric power generation system are realized while the power-electricity conversion rate, the structural durability, the waterproof performance and the dustproof performance of the road piezoelectric power generation device are improved, and the possibility is provided for large-scale application of a piezoelectric power generation pavement.
It is to be noted that all components in the present invention, unless otherwise specified, are all those known in the art.
The present invention is not limited to the following embodiments, and all equivalent changes based on the technical solutions of the present invention fall within the protection scope of the present invention.
Example 1:
the embodiment provides an assembly type road piezoelectric power generation system, as shown in fig. 1 to 6, which includes a base plate 1, a plurality of independent piezoelectric power generation devices 2 are mounted on the base plate 1 in an array manner, the plurality of piezoelectric power generation devices 2 are divided into a plurality of groups, the piezoelectric power generation devices 2 in a same group are connected with a corresponding same electric energy storage 3, and the plurality of electric energy storage 3 are connected in series through a lead 4;
the piezoelectric power generation device 2 comprises an upper convex limiting substrate 201, a plurality of piezoelectric energy capturing units 202 are embedded in the upper convex limiting substrate 201, the piezoelectric energy capturing units 202 are all connected with output ports 203 arranged on the side wall of the upper convex limiting substrate 201, and the upper surfaces of the piezoelectric energy capturing units 202 protrude out of the upper convex limiting substrate 201 and are in contact with a lower concave cover plate 204 covered on the upper convex limiting substrate 201;
limiting bolt mounting counter bores 205 are formed in four corners of the lower concave cover plate 204, limiting bolt mounting through holes 206 are formed in four corners of the upper convex limiting base plate 202, limiting bolt mounting blind holes 207 are formed in the base plate 1, limiting bolts 208 sequentially penetrate through the limiting bolt mounting counter bores 205 and the limiting bolt mounting through holes 206 and are connected with the limiting bolt mounting blind holes 207, and the piezoelectric power generation device 2 is mounted on the base plate 1;
the limit bolt 208 is also provided with an anti-loosening mechanism 5.
As a specific scheme of this embodiment, the anti-loosening mechanism 5 includes a first pin slot 209 radially formed in a bolt head of the limit bolt 208, a plurality of second pin slots 210 symmetrically arranged along a radial direction formed in the concave cover plate 204 around the top of the limit bolt mounting counterbore 205, an inner end of each second pin slot 210 penetrating through a side wall of the limit bolt mounting counterbore 205, and a pin 211 clamped in the first limit slot 209 and the second limit slot 210. The anti-loosening mechanism 5 is used for preventing the limit bolt 208 from loosening.
As a preferable scheme of this embodiment, the bottom plate 1 is provided with a hoisting and fixing hole 6. The hoisting and fixing holes 6 are used for hoisting and fixing the whole fabricated road piezoelectric power generation system.
As a preferred scheme of this embodiment, the upper cover of the electrical energy storage 3 is closed with an encapsulation partition box 7, and a plurality of routing apertures 8 are formed around the lower edge of the encapsulation partition box 7. The material of the packaging partition box 7 can be alloy material, engineering plastic, stainless steel and other hard materials. A small steel plate can be covered on the bonding material to be used as a rigid support of the electric energy storage 3, so that the electric energy storage is protected.
As a preferable aspect of the present embodiment, the plurality of power storages 3 are connected to the external power output terminal 9 through the wire 4. The external power output terminal 9 employs a conventional external power output terminal known in the art.
As a preferable scheme of this embodiment, the electric energy storage 3 and the output ports 203 of the piezoelectric power generators 2 are connected in a hot plug manner, and the bent pin terminals are disposed at the output ports 203. Besides hot plug-in type, the welding type connection can be selected under special conditions.
In the present embodiment, the piezoelectric energy harvesting unit 202 is a common piezoelectric energy harvesting unit known in the art, and preferably, the type of the piezoelectric energy harvesting unit 202 can be a single application of stacked, bridge, cantilever, crescent, pile, cymbal, arch, multi-layer, or fiber plate type transducer unit, or can be a combination of multiple types.
In the present embodiment, the electric energy storage 3 is a conventional electric energy storage known in the art. Preferably, the electric energy storage 3 can be a capacitor, a storage battery, a fuel cell, a flow battery, a super capacitor, a polymer capacitor, a hybrid capacitor, and the like.
Preferably, the material of the bottom plate 1 can be selected from alloy materials such as stainless steel, hard aluminum alloy, titanium alloy and the like, engineering plastics and the like, and the form can be selected from an integral steel plate and a separate steel plate.
Preferably, the material of the concave cover plate 204 may be selected from alloy materials such as hard aluminum alloy, modified polymers such as stainless steel and modified PP, engineering plastics, and the like.
Preferably, the protruding limit substrate 202 is designed in an integral manner, and the material can be selected from alloy materials such as hard aluminum alloy, modified polymers such as stainless steel and modified PP, engineering plastics, and the material can be different from that of the upper cover plate.
Preferably, the pin 211 is made of a material having a high shear resistance, such as an alloy material or stainless steel.
When the assembly type road piezoelectric power generation system is used, the whole assembly type road piezoelectric power generation system is laid on a road surface, when a vehicle on the road surface passes through, a load is applied to the plurality of piezoelectric energy harvesting units 202 in the piezoelectric power generation device 2, the plurality of piezoelectric energy harvesting units 202 are stressed to deform to generate electric energy, and the electric energy is collected by the electric energy storage 3 and then is transmitted to the external electric energy output terminal 9 through a lead.
Example 2:
this embodiment shows a method for laying a fabricated road piezoelectric power generation system, and the fabricated road piezoelectric power generation system 10 adopts the fabricated road piezoelectric power generation system given in embodiment 1.
As shown in fig. 7, the method proceeds as follows:
step one, on-site grooving construction:
excavating a power generation system mounting groove 12 matched with the assembly type road piezoelectric power generation system 11 on the road plate 10 along the direction of a driving wheel track or the direction of a traffic lane, excavating a lead wire mounting groove 13, and leveling the bottom of the groove;
the assembly type road piezoelectric power generation system 11 can be laid at the wheel track of a travelling crane, and can also be laid at the whole road width or any position.
Wherein:
in order to ensure the rolling frequency, the transverse and longitudinal intervals between two groove positions are adjusted according to the type of main vehicles for paving roads to pass through, the longitudinal intervals are set so that the vehicles can roll two longitudinal assembly type road piezoelectric power generation systems simultaneously or continuously, and the transverse intervals are set so that the vehicles can roll the assembly type road piezoelectric power generation systems without pressing lines.
When the power generation system mounting groove 12 and the lead mounting groove 13 are excavated, for milling projects of newly-built roads or reconstructed roads, if the newly-built roads or reconstructed roads are paved on lanes on two sides, construction of the paved lanes needs to be completed before other lanes, leads are led out of the other lanes after paving, surface layer construction is carried out on the lanes through which the leads pass after the leads 4 are led out, and the condition that the grooves damage the road surfaces of the lanes through which the leads 4 pass is avoided; if the vehicle is laid on two lanes, the vehicle is not required to be considered. For the existing road, if the existing road is paved on a non-two-side lane, milling and paving a lane of the fabricated road piezoelectric power generation system 10, and simultaneously, arranging a lead installation groove 13 on the outer lane; if the vehicle is laid on two lanes, the vehicle is not required to be considered.
Step two, hoisting the assembly type road piezoelectric power generation system:
hoisting the assembly type road piezoelectric power generation system 11 to a groove position of the power generation system mounting groove 12, fixing the assembly type road piezoelectric power generation system 11, and laying the lead 4 in a lead mounting groove 13;
the power generation system installation groove 12 and the fabricated road piezoelectric power generation system 11 are fixed by bolts or adhesives.
Wherein, the hoisting mode is electromagnetic hoisting or hoisting by using a mechanical hoisting tool through the hoisting and fixing holes 6.
Wherein, the lead 4 is sleeved with a protective tube 14 as a protective measure of the lead 4.
Step three, filling and compacting the road surface
According to the type of the pavement of the road plate, the groove filler 15 with high coupling with the pavement is selected to fill the groove position and is compacted and maintained.
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