Road piezoelectric energy supply device

Abstract

The invention discloses a road piezoelectric energy supply device which comprises a plurality of packaging units evenly distributed in the extending direction of a road, and every two adjacent packaging units are connected in parallel. Each packaging unit comprises a packaging block and a packaging plate, and a threading hole is formed in the packaging plate; the packaging block and the packaging plate are connected in a bonding manner; the packaging block comprises a main body sealing piece and two auxiliary sealing pieces; a lead block mounting cavity for mounting a lead block is formed in the packaging block, and a piezoelectric plate matched with the lead block is arranged at the bottom of the lead block mounting cavity. A lead block is placed in a lead block mounting cavity, and a piezoelectric plate is mounted between two piezoelectric plate clamping grooves; the packaging unit is embedded in a traffic road structure layer, low-frequency vibration of the lead block arranged in the packaging unit is caused after the load and the amplitude transmitted by a vehicle running on the ground are received, and electric energy of the piezoelectric plate is excited to the maximum extent in a mode of combining vibration of the piezoelectric plate and self weight of the lead block, so that electric energy is provided for electric equipment.

Description

Technical Field

[0001] The present invention belongs to the technical field of intelligent roads, and particularly relates to a road piezoelectric energy supply device. Background Art

[0002] Today, with the rapid development of traffic mileage, engineering construction and transportation consume huge amounts of resources and energy. How to reduce resource and energy consumption and develop green and intelligent transportation is a challenging project. In the technology of reusing mechanical energy of traffic loads, energy conversion is particularly important; piezoelectric materials are materials that can convert mechanical energy into electrical energy. Under the action of traffic loads, the power of the electrical energy converted by piezoelectric materials is small and the voltage is large, making it difficult to achieve grid-connected power generation. However, it can provide assistance in road energy collection and road operation monitoring. Piezoelectric technology can collect and reuse the mechanical energy of traffic loads, and the generated electrical energy can be used as the power source or supplementary power source for street lights, signal lights and other related equipment. Long-term traffic cyclic loads contain huge amounts of mechanical energy. If this mechanical energy can be reused, it will generate huge economic benefits and contribute to the development of green traffic projects and the realization of the "double reduction" goal. At present, most people collect and convert the mechanical energy of traffic loads by vibrating piezoelectric wafers, but this method has a low utilization rate of vibration energy in the environment, and piezoelectric materials cannot efficiently collect and convert mechanical energy. Therefore, how to improve the utilization rate of piezoelectric materials and maximize the collection and conversion of mechanical energy when piezoelectric technology is applied to traffic roads is an urgent problem for researchers to solve. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide a road piezoelectric energy supply device in view of the deficiencies in the above-mentioned prior art. A lead block is placed in the lead block installation cavity, and a piezoelectric wafer is installed between two piezoelectric wafer slots; then this encapsulation unit is buried in the traffic road structural layer. After receiving the load and amplitude transmitted by the vehicles running on the ground, it causes the low-frequency vibration of the lead block built into this encapsulation unit, and maximally stimulates the electrical energy of the piezoelectric wafer in the way of combining the vibration of the piezoelectric wafer and the self-weight of the lead block to provide electrical energy for electrical equipment.

[0004] To solve the above technical problem, the technical solution adopted by the present invention is: A road piezoelectric energy supply device, and this method includes the following steps: It includes a plurality of encapsulation units evenly arranged along the extension direction of the road, and adjacent two of the encapsulation units are connected in parallel; the structure and size of each of the encapsulation units are the same, and each of the encapsulation units includes a horizontally arranged encapsulation block and a vertically arranged encapsulation plate arranged on one side of the encapsulation block and cooperating with the encapsulation block. A wire passing hole is opened on the encapsulation plate; the encapsulation block and the encapsulation plate are adhesively connected; The packaging block comprises a main body sealing member arranged horizontally and two auxiliary sealing members arranged horizontally at the lower part of the main body sealing member, the main body sealing member and the auxiliary sealing member are integrally formed, and the interior of the main body sealing member is connected with the interior of the auxiliary sealing member; A lead block installation cavity for installing a lead block is arranged in the packaging block, and a piezoelectric sheet cooperating with the lead block is arranged at the bottom of the lead block installation cavity.

[0005] The above-mentioned road piezoelectric energy supply device, the main body enclosure is a closed structural part with an opening on one side, the interior of the main body enclosure is a hollow structure, two lead block baffles are vertically arranged in the main body enclosure, the lead block baffles are arranged along the extension direction of the main body enclosure, and the two lead block baffles are arranged on the top of the main body enclosure, and the area between the two lead block baffles is a lead block installation cavity for installing the lead block.

[0006] In the above-mentioned road piezoelectric energy supply device, the two auxiliary sealing parts are arranged horizontally on the outside of the main sealing part, and a piezoelectric piece slot for installing the piezoelectric piece is horizontally opened in the auxiliary sealing part. The piezoelectric piece slot is arranged along the extension direction of the auxiliary sealing part, and the piezoelectric piece slot is connected to the interior of the main sealing part.

[0007] In the above-mentioned road piezoelectric energy supply device, there is a gap between the top of the piezoelectric piece slot and the bottom of the lead block baffle.

[0008] In the above-mentioned road piezoelectric energy supply device, the lead blocks are stacked in the lead block installation cavity.

[0009] The beneficial effect of the present invention is that a lead block is placed in the lead block installation cavity, and a piezoelectric sheet is installed between two piezoelectric sheet slots; then the packaging unit is buried in the traffic road structure layer, and after receiving the load and amplitude transmitted by the ground running vehicle, the low-frequency vibration of the built-in lead block of the packaging unit is caused. Through the combination of the vibration of the piezoelectric sheet and the dead weight of the lead block, the electric energy of the piezoelectric sheet is stimulated to the maximum extent, thereby providing electric energy for the electrical equipment.

[0010] The technical solution of the present invention is further described in detail below through the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a structural schematic diagram of the present invention.

[0012] Figure 2 It is the front view of the packaging block of the present invention.

[0013] Description of reference numerals: 1—Piezoelectric piece slot; 2—Lead block baffle; 3—Lead block installation cavity; 4 - Encapsulation board; 5 - Wire passing hole; 6 - Main body closure; 7 - Auxiliary closure. Detailed implementation manner

[0014] As Figure 1 and Figure 2 shown, a piezoelectric energy supply device for roads includes a plurality of encapsulation units evenly arranged along the extension direction of the road, and adjacent two of the encapsulation units are connected in parallel; the structure and size of each of the encapsulation units are the same, and each of the encapsulation units includes a horizontally arranged encapsulation block and a vertically arranged encapsulation board 4 disposed on one side of the encapsulation block and cooperating with the encapsulation block, and a wire passing hole 5 is provided on the encapsulation board 4; the encapsulation block and the encapsulation board 4 are adhesively connected; The encapsulation block includes a horizontally arranged main body closure 6 and two auxiliary closures 7 both horizontally arranged below the main body closure 6. The main body closure 6 and the auxiliary closures 7 are integrally formed, and the interior of the main body closure 6 and the interior of the auxiliary closures 7 are communicated with each other; A lead block installation cavity 3 for installing a lead block is provided in the encapsulation block, and a piezoelectric sheet cooperating with the lead block is provided at the bottom of the lead block installation cavity 3.

[0015] During actual use, a lead block is placed in the lead block installation cavity 3, and a piezoelectric sheet is installed between two piezoelectric sheet slots 1; then this encapsulation unit is buried in the traffic road structural layer. After receiving the load and amplitude transmitted by the ground-running vehicles, it causes the low-frequency vibration of the lead block built in this encapsulation unit. By means of the combination of the vibration of the piezoelectric sheet and the self-weight of the lead block, the electric energy of the piezoelectric sheet is maximally excited to provide electric energy for electrical equipment such as indicator lights and street lamps.

[0016] It should be noted that, as Figure 1 and Figure 2 shown, an auxiliary closure 7 is designed on the outer side of the main body closure 6, which is located at the bottom of the main body closure 6 to provide a placement platform for the PZT-5 piezoelectric sheet. The size of the piezoelectric sheet slot 1 is 7.0 cm * 7.0 cm * 0.1 cm, and the size of the piezoelectric sheet is 6.0 cm * 3.0 cm. To increase the electric energy output, the piezoelectric sheets are placed in the piezoelectric sheet slots 1, and a plurality of piezoelectric sheets are connected in parallel. Then the piezoelectric sheets after parallel connection are horizontally embedded in the piezoelectric sheet slots 1, and the piezoelectric card slot 1 is 0.05 cm away from the bottom of the piezoelectric sheet to ensure that after the piezoelectric sheet is subjected to the pressure and vibration of the lead block, there is an elastic deformation space to better excite the electric energy of the piezoelectric sheet.

[0017] As Figure 1 and Figure 2As shown in the figure, a lead block baffle 2 is designed inside the main body closure 6. A lead block installation cavity 3 is formed between the two lead block baffles 2 on both sides. The size of the lead block installation cavity 3 is 7.0 cm * 2.5 cm * 2.5 cm. After the parallel piezoelectric wafers are embedded, lead blocks are placed in the lead block installation cavity 3 above the piezoelectric wafers. The size of the lead block is 3 cm * 2 cm * 1 cm. Therefore, two lead blocks can be placed on each piezoelectric wafer, and a total of 4 lead blocks can be placed in the lead block installation cavity 3. As an important energy exciter, when the encapsulation unit receives traffic road loads and vibrations, it causes the lead blocks to vibrate at a low frequency. The above lead block size is selected from the aspects of mass and size to achieve the best effect of exciting the piezoelectric wafers.

[0018] After the parallel PZT-5 piezoelectric wafers and lead blocks are both placed inside the main body closure 6, the wires of the parallel-connected piezoelectric wafers are led out from the wire passing hole 5 and connected to external electrical equipment to provide electrical energy for the follow-up. After the wires are led out, sealant is applied to bond the encapsulation board 4 and the main body closure 6 to form a complete encapsulation unit. The encapsulation board 4 encloses the piezoelectric wafers and lead blocks into the encapsulation unit to prevent displacement caused by vibration. At the same time, during the road construction process, the road materials are separated from the materials inside the encapsulation unit.

[0019] Specifically, when each encapsulation unit receives road loads and vibrations, the electrical energy generated is small. The electrical energy generated by each encapsulation unit can light up a 5V light bulb. In traffic road engineering, in order to supply power to street lights, road signs, traffic lights, etc., several encapsulation units need to be connected in parallel. While increasing the collection of road loads and vibration energy, it can also provide higher output energy. The position and quantity of the encapsulation units designed and installed in the traffic road are particularly important. First of all, if the position is designed reasonably, it can avoid the damage of the encapsulation unit caused by the stress concentration of the road load. The uniform distribution of the encapsulation unit positions can also better collect the loads and vibrations transmitted during the vehicle driving process, greatly improving the mechanical energy collection rate. The best burial positions of this encapsulation unit are under the center double yellow line of the road, at the edge of the road, and under the solid line where lane changes are prohibited, etc., close to the vehicle driving position, rather than within the vehicle driving area. The above areas are not directly rolled by vehicles, avoiding large direct load values, improving the service durability of the encapsulation unit, and at the same time being able to provide the ability to meet the low-frequency vibration of the lead blocks to ensure that the piezoelectric wafers are excited to generate electrical energy. The quantity of the encapsulation units is confirmed by analyzing and calculating factors such as the quantity, model of the intelligent road electrical equipment, and the statistical traffic flow. For example, a certain intelligent road is 100 m long. All the electrical equipment on this intelligent road requires 200 encapsulation units under the condition of daily statistical traffic flow. It can be seen from this that one encapsulation unit can be installed every 0.5 m at the center double yellow line position of this road. All the encapsulation units are connected in parallel and connected to the electrical equipment to meet the electrical needs of this intelligent road surface, converting mechanical energy into electrical energy to achieve the effect of an intelligent road.

[0020] In addition, lead blocks have the highest density, a relatively large mass in blocks of the same volume, and are inexpensive, making them most suitable as the gravity components for exciting the energy of piezoelectric materials. As an important way to excite the energy of piezoelectric materials, when the encapsulation unit receives the vibration load during vehicle driving, it drives the lead blocks to vibrate. In addition to the generated vibration energy, the gravitational potential energy of the combined lead blocks together excites the electrical energy of the piezoelectric materials. Therefore, the added lead blocks increase the energy for exciting the piezoelectric materials.

[0021] This encapsulation unit can be used to produce molds through 3D printing technology, ensuring the dimensional accuracy and strength of the molds. When a large number of power generation devices are used, it has the characteristics of simple preparation process, short preparation cycle, and low preparation cost.

[0022] As Figure 1 and Figure 2 shown, in this embodiment, the main enclosure 6 is a closed structural member with an opening on one side. The interior of the main enclosure 6 is a hollow structure. Vertically arranged in the main enclosure 6 are two lead block baffles 2. The lead block baffles 2 are arranged along the extending direction of the main enclosure 6, and both of the two lead block baffles 2 are evenly arranged at the top of the main enclosure 6. The area between the two lead block baffles 2 is a lead block installation cavity 3 for installing lead blocks.

[0023] As Figure 1 and Figure 2 shown, in this embodiment, both of the two auxiliary enclosures 7 are horizontally arranged outside the main enclosure 6. Horizontally opened in the auxiliary enclosure 7 is a piezoelectric sheet slot 1 for installing the piezoelectric sheet. The piezoelectric sheet slot 1 is arranged along the extending direction of the auxiliary enclosure 7, and the piezoelectric sheet slot 1 communicates with the interior of the main enclosure 6.

[0024] In this embodiment, there is a gap between the top of the piezoelectric sheet slot 1 and the bottom of the lead block baffle 2.

[0025] In this embodiment, the lead blocks are stacked in the lead block installation cavity 3.

[0026] During actual use, the stacked lead blocks are an important structural way to excite the energy of piezoelectric materials. Among them, the gravitational potential energy of the stacked lead blocks and the energy generated by the friction and collision between the lead blocks can effectively excite the energy of the piezoelectric materials.

[0027] The above is only a preferred embodiment of the present invention, and does not impose any limitations on the present invention. Any simple modifications, changes, and equivalent structural changes made to the above embodiments according to the technical essence of the present invention still fall within the protection scope of the technical solution of the present invention.

Claims

1. A piezoelectric energy supply device for roads, characterized in that: It includes a plurality of encapsulation units evenly arranged along the extension direction of the road, and adjacent two of the encapsulation units are connected in parallel; the structures and sizes of each of the encapsulation units are the same, and each of the encapsulation units includes a horizontally arranged encapsulation block and an encapsulation plate (4) vertically arranged on one side of the encapsulation block and cooperating with the encapsulation block, and a wire passing hole (5) is formed in the encapsulation plate (4); the encapsulation block and the encapsulation plate (4) are adhesively connected; The encapsulation block includes a horizontally arranged main body closure (6) and two auxiliary closures (7) both horizontally arranged at the lower part of the main body closure (6), the main body closure (6) and the auxiliary closures (7) are integrally formed, and the interior of the main body closure (6) and the interior of the auxiliary closures (7) are connected and communicated; A lead block installation cavity (3) for installing a lead block is arranged in the encapsulation block, and a piezoelectric sheet cooperating with the lead block is arranged at the bottom of the lead block installation cavity (3); The main body closure (6) is a closed structural member with an opening on one side, the interior of the main body closure (6) is a hollow structure, two lead block baffles (2) are vertically arranged in the main body closure (6), the lead block baffles (2) are arranged along the extension direction of the main body closure (6), and the two lead block baffles (2) are evenly arranged at the top of the main body closure (6), and the area between the two lead block baffles (2) is the lead block installation cavity (3) for installing a lead block.

2. The piezoelectric energy supply device for roads according to claim 1, characterized in that: The two auxiliary closures (7) are both horizontally arranged outside the main body closure (6), a piezoelectric sheet card slot (1) for installing the piezoelectric sheet is horizontally formed in the auxiliary closure (7), the piezoelectric sheet card slot (1) is arranged along the extension direction of the auxiliary closure (7), and the piezoelectric sheet card slot (1) and the interior of the main body closure (6) are connected and communicated.

3. The piezoelectric energy supply device for roads according to claim 2, characterized in that: There is a gap between the top of the piezoelectric sheet card slot (1) and the bottom of the lead block baffle (2).

4. A road piezoelectric energy supply device according to claim 1, characterized in that: The lead blocks are stacked and arranged in the lead block installation cavity (3).

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